EP2097503A1 - Corps moulé d'agent de lavage ou de nettoyage - Google Patents

Corps moulé d'agent de lavage ou de nettoyage

Info

Publication number
EP2097503A1
EP2097503A1 EP07765626A EP07765626A EP2097503A1 EP 2097503 A1 EP2097503 A1 EP 2097503A1 EP 07765626 A EP07765626 A EP 07765626A EP 07765626 A EP07765626 A EP 07765626A EP 2097503 A1 EP2097503 A1 EP 2097503A1
Authority
EP
European Patent Office
Prior art keywords
tablet
base
core
washing
acid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07765626A
Other languages
German (de)
English (en)
Inventor
Thomas Holderbaum
Arno DÜFFELS
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of EP2097503A1 publication Critical patent/EP2097503A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0047—Detergents in the form of bars or tablets
    • C11D17/0065—Solid detergents containing builders
    • C11D17/0073—Tablets
    • C11D17/0078—Multilayered tablets

Definitions

  • the present invention is in the field of compact moldings having washing and cleaning properties.
  • Such detergent tablets comprise, for example, laundry detergent tablets for washing textiles, automatic dishwashing detergent tablets or hard surface cleaning agents, bleach tablets for use in dishwashers or dishwashers, water softening tablets or patch salt tablets.
  • the invention relates to detergent tablets which are used for cleaning dishes in a domestic dishwasher and are referred to for short as detergent tablets or dishwasher tablets, and to processes for their production.
  • Detergent tablets are widely described in the art and are becoming increasingly popular with consumers because of their ease of use. Tableted detergents and cleaners have a number of advantages over powdered ones: they are easier to dose and to handle and, due to their compact structure, have advantages in storage and transport. Also in the patent literature washing and cleaning agent tablets are thus described comprehensively. A problem which occurs again and again in the application of washing and cleaning-active moldings is the too low disintegration and dissolution rate of the moldings under conditions of use. Since sufficiently stable, i.
  • Form-resistant and fracture-resistant molded body can be produced only by relatively high pressing pressures, there is a strong compaction of the molding constituents and a consequent delayed disintegration of the molding in the aqueous liquor and thus to a slow release of the active substances in the washing or cleaning process ,
  • the present invention has now the object to provide multi-phase detergent or detergent tablets, which are characterized by short disintegration times for a given hardness and thus can be dosed via the dispensing chamber household washing machines.
  • the corresponding advantages should be achieved regardless of the formulation in order to be able to dispense with expensive pre-assembly steps or the use of expensive tabletting aids only for this purpose.
  • the tablets should be able to be produced industrially in a simple and reproducible manner.
  • the present invention is a multi-phase detergent tablet comprising a base tablet and a core tablet partially covering the top of the base tablet, wherein the base tablet has a protrusion on its upper side and the core tablet has at least one recess on its surface marked shows that the core tablet is mounted on top of the base tablet such that the protrusion of the base tablet engages the recess of the core tablet.
  • a tablet according to the invention hereinafter also referred to as a shaped body, has an upper and a lower side and one or more side surfaces.
  • the underside is the area of the tablets which comes into contact with the lower punch of the tablet press during the pressing process, while the upper side is the surface which contacts the upper punch of the tablet press.
  • the side surfaces are touched by the walls of the die during the pressing process, with a round or oval tablet having only one side wall (the cylinder jacket surface), while polygonal tablets have an equal number of side surfaces in terms of the number of corners.
  • Preferred in accordance with the invention are rectangular tablets which have four side surfaces. In the special case of the square tablet, all four side surfaces are the same size, while in tablets with rectangular top and bottom only equal to two side surfaces.
  • the subject matter of the present application is washing or cleaning agent tablets made of compressed particulate material, comprising a lower surface or bottom surface, an upper side opposite the lower surface or bottom surface, and one or more lateral surface or lateral surface (s) connecting the bottom surface and the upper side characterized in that the top of the tablet has a protrusion, the bottom surface but no protrusion, in particular no protrusion of the top complementary recess.
  • the top of the molding is single-phase and includes the protrusion, which is why it can therefore not be at the protrusion placed on the tops or embedded in the top core.
  • washing or cleaning agent tablet refers in particular to those shaped bodies which are suitable for carrying out individual cleaning cycles.Such moldings preferably have a weight between 8 and 30 g, preferably between 10 and 25 g and in particular between 12 and 20 g The volume of the shaped bodies is usually in the range between 5 and 40 ml, preferably between 8 and 30 ml and in particular between 12 and 20 ml.
  • the molded body can be used by means of a dosing aid or by simply introducing it into the interior of a cleaning machine, for example a dishwasher.
  • a dosing aid for example, nets or bags are conceivable as dosing aids, as are devices which automatically deliver the dosing unit into the interior of the cleaning machine at a given time.
  • the group of automatic dosing systems also includes the dosing chambers of automatic dishwashers.
  • the spatial shape of the moldings is preferably adapted in their dimensions to the dispensing compartment of commercial household washing machines or the dosing chamber of commercially available dishwashers, so that the moldings can be metered directly into the dispensing compartment without dosing aid, where they dissolve during the dispensing operation or from where they are during of the cleaning process are released.
  • the shaped body in its spatial form is preferably adapted to the dimensions of this dosing aid.
  • Particularly preferred shaped bodies have dimensions in the range of 5 cm ⁇ 3 cm ⁇ 2 cm, preferably in the range of 4.5 cm ⁇ 2.5 cm ⁇ 2 cm, particularly preferably in the range of 4 cm ⁇ 2 cm, 2 cm.
  • the height of the base tablet according to the invention preferred washing or cleaning tablets is 5 to 25 mm, preferably 7 to 22 mm and in particular 10 to 20 mm and is preferably greater than the height of the core tablet.
  • the top of the tablet is inventively provided with a protrusion.
  • the protrusion on the tablet top corresponds to a depression on the upper punch of the tablet press (see below).
  • the horizontal extent of the protrusion at the level of the tablet surface is greater than its height.
  • the protrusion in the x, y direction at the level of the tablet top has a greater extent than in the z direction of the tablet height.
  • the horizontal extent of the protrusion at the level of the tablet surface is 1.5 times to 15 times, preferably 1.5 times to 10 times, more preferably 2 to 8 times the height the protrusion.
  • the washing or cleaning agent tablets according to the invention can be designed in two or more phases.
  • Detergents or cleaning tablets characterized in that the base tablet and / or the core tablet in each case two, three, four or more phases, preferably layer-shaped phases, are preferred according to the invention.
  • An embodiment according to the invention in which both the base tablet and the core tablet have two phases is particularly preferred.
  • the individual phases of the two- or multi-phase base tablet or core tablet are preferably arranged in layers.
  • the proportion by weight of the smallest phase, based on the total tablet, is preferably at least 5% by weight, preferably at least 10% by weight and in particular at least 20% by weight.
  • the proportion by weight of the phase with the highest proportion by weight of the tablet in the case of biphasic tablets is preferably not more than 90% by weight, preferably not more than 80% by weight and in particular between 55 and 70% by weight.
  • the proportion by weight of the phase with the highest proportion by weight of the Tablet preferably not more than 80 wt .-%, preferably not more than 70 wt .-% and in particular between 40 and 60 wt .-%.
  • the preferred biphasic or multiphase structure of base tablet or core tablet is preferably used for the separation of mutually incompatible ingredients of this dosing unit.
  • the washing or cleaning agent tablets according to the invention ie the base tablet and / or the core tablet, preferably consist of compressed particulate material.
  • the usually pulverulent or fine-grained material to be tabletted into tablets if not particularly complicated and production-hindering arrangements for a specific distribution, is approximately evenly distributed during filling in the press die.
  • the material must be compressed the most where the profile of the embossing element has the highest elevations.
  • Characteristic of preferred detergent tablets according to the invention is consequently a heterogeneous density distribution within the base tablet, wherein the density of the tablet is in the region of the protrusion in the least, while it is significantly higher in the area surrounding the protrusion, in particular in the edge region of the tablet.
  • the densities of the tablet matrix differ within a phase by at least 0.05 g / cm 3 , preferably by at least 0.1 g / cm 3 and in particular by at least 0.2 g / cm 3 , the density in the edge region the tablet is higher than in its center.
  • the present application therefore also relates to a washing or cleaning agent tablet according to the invention, comprising a base tablet of compressed particulate material comprising an upper side and a lower side and at least one side surface connecting the upper and lower side, characterized in that the tablet matrix has a heterogeneous density distribution, in which the density within a phase decreases in at least one horizontal spatial direction from the side edge of the tablet to the tablet center.
  • the densities of the tablet matrix differ within a phase by at least 0.05 g / cm 3 , preferably by at least 0.1 g / cm 3 and in particular by at least 0.2 g / cm 3 or 0.3 g / cm 3 , wherein the density is higher in the edge area of the tablet than in its center.
  • the average density of the entire tablet phase or of the entire tablet is preferably in the range from 1.0 to 2.8 g / cm 3 , preferably in the range from 1.2 to 2.5 g / cm 3 and in particular in the range of 1, 3 to 2.0 g / cm 3 .
  • Multi-phase washing or cleaning agent tablets which are preferred according to the invention are characterized in that the protrusion protrudes from a flat or at least partially planar upper side.
  • the protrusion protrudes from a flat or at least partially planar upper side.
  • planar upper side In addition to completely planar upper sides, such “convex or concave upper sides” are also referred to as “planar upper side”, provided that these upper sides have no height differences of more than 2 mm, preferably no height differences of more than 1 mm
  • the upper and lower sides are therefore preferably arranged plane-parallel to each other, in particular the planar region of the upper surface surrounding the protrusion extends in a preferred embodiment at least partly, preferably however, completely plane-parallel to the bottom of the tablet.
  • the protrusion located on the upper side is preferably centered on the upper side such that it is completely surrounded by planar areas of the upper side.
  • the minimum width of the planar surface surrounding the protrusion hereinafter also referred to as "web” is preferably at least 4 mm. Washing or cleaning agent tablets, characterized in that the protrusion is surrounded by a web with a minimum width of 4 mm, are preferred according to the invention. Detergents and cleaning agent tablets having a web width above 5 mm, in particular between 5 and 14 mm or 8 and 12 mm are particularly preferred.
  • Preferred base tablets with protrusion have a rectangular shape and have different web widths on longitudinal and cross-section.
  • the protrusion here may be circular, elliptical or ellipsoidal or rectangular.
  • rectangular base tablets may be produced in which the web widths on the longitudinal and cross-section are identical.
  • the protrusions may be round, elliptical or ellipsoidal or rectangular.
  • the base tablets have a circular shape.
  • the upper side of the base tablet may have in its edge region a chamfer, that is to say a bevelled surface, which has been obtained by chamfering or chamfering or chamfering the molded body edge.
  • This chamfer may for example have an angle of 45 °. If the chamfer is not continuous, it is called a stepped chamfer. If the top has a chamfer, then this chamfer is part of the above-mentioned bar. In such a case, however, the bridge is always wider than the chamfer.
  • Suitable shapes for the protrusion can be selected by the person skilled in the art depending on the shape of the washing and cleaning agent molding - there are no limits to its formulation freedom, so that octagonal base tablets with round or square (or other) protrusions are also conceivable.
  • the protrusion may be orthorhombic, ie have the shape of a brick, but it may also be in plan view - as already stated - for example, round or elliptical.
  • Preferred multi-phase detergent tablets are characterized in that the core tablet has a circular top view.
  • the shape of the protrusion in the longitudinal or cross section of the molding must not be rectangular. Rather, it is preferred that the protrusion has the shape of a triangle in cross section, but protrusions which also have the shape of a cut ellipse or a semicircle in the longitudinal and / or cross section are particularly preferred. In other words, in particular those washing and cleaning agent shaped bodies are preferred in which the contour line of the protrusion steadily increases from the edge to the center and has an upwardly curved curvature.
  • Washing or cleaning agent tablet characterized in that the protrusion in cross section has the shape of a hemi-ellipsoid or a hemisphere, or the shape of an ellipsoid segment or a segment of a sphere, are preferred according to the invention. Preference is furthermore given to washing or cleaning agent tablets in which the protrusion has cylindrical side walls in cross-section and a convex upper side. In a special embodiment, the protrusion has the shape of a cone or a conical segment.
  • this lateral surface (s) is preferably not orthogonal on the upper side of the molded article but instead is in the direction of the center of the Preload inclined, since such a design, both the mold release of the moldings from the press and the attachment of the core tablet is significantly improved.
  • the protrusion preferably covers between 5 and 50%, preferably between 10 and 30% and particularly preferably between 10 and 20% of the upper side of the shaped body.
  • the detergent tablets according to the invention are characterized in that the core tablet is mounted on the top side of the base tablet such that the protrusion of the base tablet engages in a corresponding recess of the core tablet.
  • the core tablet may be a well corresponding to the bulge of the base tablet but also an opening, so the bottom and top of the core tablet interconnecting trough, act.
  • core tablet has a concave upper or lower side, preferably a cylindrical base body with a concave upper or lower side.
  • the concave top or bottom serves the connection between the base tablet and the core tablet, wherein the protrusion of the base tablet engages in the recess of the concave top or bottom.
  • the core tablet has a planar upper side and a lower side provided with a recess.
  • the orientation of the core tablet on the top of the base tablet is done by a large-scale process by machine, wherein the provided with the recess bottom of the core tablet is applied to the top of the base tablets.
  • the core tablet In the present case of a core tablet with a flat upper side and an underside provided with a recess, the core tablet must be oriented in a corresponding manner before application to the base tablet, that is, it must be distinguished between the top and bottom. It is obvious that such a distinction is necessary not only in the specific case described above but generally in the case where the top and bottom of the core tablet are different. Accordingly, the productivity of the method described above can be increased by making it unnecessary in the method to distinguish between the upper and lower sides of the core tablet, that is, to use core tablets with identical upper and lower sides. Therefore, in particular core tablets with identical upper and lower sides are preferred.
  • Core tablets are particularly preferred having a cylindrical base body whose upper and lower sides are identically shaped, in particular having identical depressions.
  • core tablet has a concave top and bottom, preferably a cylindrical base body with a concave top and bottom on.
  • Cylindrical bodies have in relation to the preparation of tablets of the invention additionally has the advantage that their transport in the course of the manufacturing process can be ensured by taxiways, which continue to be suitable for transport in addition to the correct spatial orientation of the core tablets with respect to the base tablet.
  • the core tablets which can be placed precisely on the protrusion of the base tablet, wherein "core fits" in the context of the present application, those core tablets are called, the recess indeed have the same spatial shape as the protrusions located on the base tablet, but about a bigger one Have volume, whereby, for example, process-related inaccuracies in the preparation of the base and / or core tablets is taken into account.
  • the gap between the base tablet and the attached core tablet is between 0.5 and 4 mm, preferably between 0.5 and 3 mm and in particular between 0.5 and 2 mm.
  • the joint also allows the application of a bonding agent between the base tablet and the core tablet.
  • Preferred washing or cleaning agent tablets are characterized in that the recess of the core tablet in cross section has the shape of a half ellipsoid or a hemisphere, or the shape of an ellipsoidal segment or a spherical segment. Preference is furthermore given to washing or cleaning agent tablets in which the recess has cylindrical side walls in cross-section and a convex upper side. In a special embodiment, the recess has the shape of a cone or a conical segment.
  • the side wall of the core tablet is rounded.
  • the core tablet has the shape of a closed torus.
  • the torus is hereby referred to as a geometrical structure having the shape of a bucket or donut, in the previously described embodiment of the "closed torus" the hole in the center of the bucket or donut being closed. that the core tablet has the shape of a closed torus are preferred according to the invention.
  • the recess in the core tablet has the shape of a breakthrough.
  • the resulting core tablets then have, for example, the spatial form of a ring tablet. Preference is therefore also given to those multiphase washing or cleaning agent tablets in which the core tablet has the form of a ring tablet, preferably a cylindrical ring tablet. Breakthroughs preferably have a circular top view. Particularly preferred are core tablets in the form of a cylindrical ring tablet with an opening which has a circular top view.
  • the core tablet has the shape of a torus.
  • a multi-phase detergent or cleaner tablet characterized in that the core tablet has the shape of a torus, are preferred according to the invention.
  • the aperture can also be displaced from the center of the core tablet on its side wall, wherein it intersects in extreme cases with the side wall .
  • this embodiment Form to a core tablet with "open" side wall, comparable to a pie, from which a first piece, for example in the form of a circular sector (circle cutout) was cut out.
  • the protrusion of the base tablet depending on the height of the protrusion or the height of the core tablet can intervene in this breakthrough, complete with the top of the core tablet plan or reach through the breakthrough of the core tablet.
  • those washing or cleaning agent shaped bodies according to the invention in which the protrusion engages only in the opening without protruding from the top of the core tablet are particularly preferred.
  • the core tablet preferably covers between 20 and 80%, preferably between 30 and 70% and more preferably between 30 and 60% of the top of the base tablet.
  • connection between the base tablet and the core tablet can be realized, for example, by an adhesive, snap, snap or plug connection, preference being given to those multiphase washing or cleaning tablets in which the base tablet and the core tablet are connected to one another by an adhesive or plug connection.
  • Suitable adhesives between base tablet and core tablet are the adhesives known to the person skilled in the art, in particular the adhesives known to him from the field of adhesive bonding of detergents and cleaners.
  • the latter group includes in particular the organic polymers, or their solutions or dispersions.
  • Preferred adhesion promoters are the polyalkylene glycols, in particular the polyethylene glycols (PEG), preferably polyethylene glycols having a molecular weight between 500 and 10,000, preferably between 2,000 and 8,000.
  • Preferred adhesion promoters are also the polyvinyl alcohols, the polyvinylpyrrolidones, starch and casein.
  • the multi-phase washing or cleaning agent tablets claimed above are "core optic" tablets based on the core tablet only partially covering the basic tablet by the core tablet.
  • the technical teaching of the present application namely, the orientation of two tablet phases to each other by means of a protrusion on top of a base tablet and the subsequent fixation of these tablet phases together also for the production of detergent tablets with different optics, for example, suitable for the preparation of simple two-layer tablets, in which case the "core tablet "the top of the base tablet is not partially but rather completely covered.
  • the agents according to the invention described above contain washing or cleaning substances, preferably from the group of builders, surfactants, polymers, bleaches, bleach activators, enzymes, glass corrosion inhibitors, corrosion inhibitors, disintegration aids, fragrances and perfume carriers. These preferred ingredients will be described in more detail below.
  • the builders include, in particular, the zeolites, silicates, carbonates, organic cobuilders and, where there are no ecological prejudices against their use, also the phosphates.
  • crystalline layered silicates of general formula NaMSi x O 2x + I ⁇ y H 2 O wherein M is sodium or hydrogen, x is a number from 1, 9 to 22, preferably from 1: 9 to 4, wherein particularly preferred Values for x are 2, 3 or 4, and y is a number from 0 to 33, preferably from 0 to 20.
  • the crystalline layered silicates of the formula NaMSi x O 2x + 1 ⁇ y H 2 O are sold for example by Clariant GmbH (Germany) under the trade name Na-SKS.
  • silicates Na-SKS-1 (Na 2 Si 22 O 45 .xH 2 O, kenyaite), Na-SKS-2 (Na 2 Si 14 O 29 .xH 2 O, magadiite), Na-SKS -3 (Na 2 Si 8 O 17 .xH 2 O) or Na-SKS-4 (Na 2 Si 4 O 9 .xH 2 O, Makatite).
  • crystalline layer silicates with the formula NaMSi x O 2x + 1 ⁇ y H 2 O, in which x stands for 2 h.
  • x stands for 2 h.
  • both .beta.- and ⁇ -sodium Na 2 Si 2 O 5 ⁇ y H 2 O and further in particular Na-SKS-5 ((X-Na 2 Si 2 O 5), Na-SKS-7 (.beta.
  • Washing or cleaning composition preferably contain a weight proportion of crystalline layered silicate of the formula NaMSi x O 2x + 1 ⁇ y H 2 O from 0.1 to 20 wt .-%, preferably from 0.2 to 15 wt .-% and in particular of 0.4 to 10 wt .-%, each based on the total weight of these agents.
  • amorphous sodium silicates with a Na 2 O: SiO 2 modulus of from 1: 2 to 1: 3.3, preferably from 1: 2 to 1: 2.8 and in particular from 1: 2 to 1: 2.6, which preferably delayed release and have secondary washing properties.
  • the dissolution delay compared with conventional amorphous sodium silicates may have been caused in various ways, for example by surface treatment, compounding, compaction / densification or by overdrying.
  • amorphous is understood to mean that the silicates do not have sharp X-ray reflections in X-ray diffraction experiments provide, as they are typical for crystalline substances, but at most one or more maxima of the scattered X-radiation, which have a width of several degrees of the diffraction angle, cause.
  • X-ray amorphous silicates are used whose silicate particles produce fuzzy or even sharp diffraction maxima in electron diffraction experiments. This is to be interpreted as meaning that the products have microcrystalline regions of the size of ten to a few hundred nm, with values of up to max. 50 nm and in particular up to max. 20 nm are preferred.
  • Such X-ray amorphous silicates also have a dissolution delay compared to conventional water glasses. Particularly preferred are compacted / compacted amorphous silicates, compounded amorphous silicates and overdried X-ray amorphous silicates.
  • the alkali metal phosphates with particular preference for pentasodium or pentapotassium triphosphate (sodium or potassium tripolyphosphate), are of greatest importance in the washing and cleaning agent industry.
  • Alkali metal phosphates is the summary term for the alkali metal (especially sodium and potassium) salts of various phosphoric acids, in which one can distinguish metaphosphoric acids (HPO 3 ) n and orthophosphoric H 3 PO 4 in addition to high molecular weight representatives.
  • the phosphates combine several advantages: they act as alkali carriers, prevent lime deposits on machine parts or lime incrustations in fabrics and also contribute to the cleaning performance.
  • phosphates are the pentasodium triphosphate, Na 5 P 3 O 10 (sodium tripolyphosphate) and the corresponding potassium salt pentapotassium triphosphate, K 5 P 3 O 10 (potassium tripolyphosphate).
  • the sodium potassium tripolyphosphates are also preferably used according to the invention.
  • phosphates are used as detergents or cleaning agents in the context of the present application
  • preferred agents comprise these phosphate (s), preferably alkali metal phosphate (s), more preferably pentasodium or pentapotassium triphosphate (sodium or pentasodium) Potassium tripolyphosphate), in amounts of 5 to 80 wt .-%, preferably from 15 to 75 wt .-% and in particular from 20 to 70 wt .-%, each based on the weight of the detergent or cleaning agent.
  • phosphate preferably alkali metal phosphate (s), more preferably pentasodium or pentapotassium triphosphate (sodium or pentasodium) Potassium tripolyphosphate
  • 5 to 80 wt .-% preferably from 15 to 75 wt .-% and in particular from 20 to 70 wt .-%, each based on the weight of the detergent or cleaning agent.
  • alkali carriers are, for example, alkali metal hydroxides, alkali metal carbonates, alkali metal hydrogencarbonates, alkali metal sesquicarbonates, the alkali silicates, alkali metal silicates and mixtures of the abovementioned substances, preference being given to using alkali metal carbonates, in particular sodium carbonate, sodium bicarbonate or sodium sesquicarbonate for the purposes of this invention.
  • alkali metal carbonates in particular sodium carbonate, sodium bicarbonate or sodium sesquicarbonate for the purposes of this invention.
  • a builder system comprising a mixture of tripolyphosphate and sodium carbonate.
  • a builder system comprising a mixture of tripolyphosphate and sodium carbonate and sodium disilicate.
  • the alkali metal hydroxides are preferably only in small amounts, preferably in amounts below 10 wt .-%, preferably below 6 wt .-%, more preferably below 4 wt .-% and in particular below 2 wt .-%, each based on the total weight of the detergent or cleaning agent used.
  • Particularly preferred are agents which, based on their total weight, contain less than 0.5% by weight and in particular no alkali metal hydroxides.
  • compositions which, based on the weight of the washing or cleaning agent, contain less than 20% by weight, preferably less than 17% by weight, preferably less than 13% by weight and in particular less than 9% by weight of carbonate ( e) and / or bicarbonate (s), preferably alkali metal carbonate (s), particularly preferably sodium carbonate.
  • organic co-builders are polycarboxylates / polycarboxylic acids, polymeric polycarboxylates, aspartic acid, polyacetals, dextrins, further organic cobuilders and phosphonates. These classes of substances are described below.
  • Useful organic builder substances are, for example, the polycarboxylic acids which can be used in the form of the free acid and / or their sodium salts, those of polycarboxylic acids being those Carboxylic acids are understood to carry more than one acid function. These are, for example, citric acid, adipic acid, succinic acid, glutaric acid, malic acid, tartaric acid, maleic acid, fumaric acid, sugar acids, aminocarboxylic acids, nitrilotriacetic acid (NTA), if such use is not objectionable for ecological reasons, and mixtures of these.
  • the free acids also typically have the property of an acidifying component and thus also serve to set a lower and milder pH of detergents or cleaners.
  • citric acid, succinic acid, glutaric acid, adipic acid, gluconic acid and any desired mixtures of these can be mentioned here.
  • polymeric polycarboxylates for example the alkali metal salts of polyacrylic acid or of polymethacrylic acid, for example those having a relative molecular mass of from 500 to 70,000 g / mol.
  • the molecular weights stated for polymeric polycarboxylates are weight-average molar masses M w of the particular acid form, which were determined in principle by means of gel permeation chromatography (GPC), a UV detector being used. The measurement was carried out against an external polyacrylic acid standard, which provides realistic molecular weight values due to its structural relationship with the polymers investigated. These data differ significantly from the molecular weight data, in which polystyrene sulfonic acids are used as standard. The molar masses measured against polystyrenesulfonic acids are generally significantly higher than the molecular weights specified in this document.
  • Suitable polymers are, in particular, polyacrylates which preferably have a molecular weight of 2,000 to 20,000 g / mol. Because of their superior solubility, the short-chain polyacrylates, which have molar masses of from 2000 to 10000 g / mol, and particularly preferably from 3000 to 5000 g / mol, may again be preferred from this group.
  • copolymeric polycarboxylates in particular those of acrylic acid with methacrylic acid and of acrylic acid or methacrylic acid with maleic acid.
  • Copolymers of acrylic acid with maleic acid which contain 50 to 90% by weight of acrylic acid and 50 to 10% by weight of maleic acid have proven to be particularly suitable.
  • Their relative molecular weight, based on free acids is generally from 2000 to 70000 g / mol, preferably from 20,000 to 50,000 g / mol and in particular from 30,000 to 40,000 g / mol.
  • the (co) polymeric polycarboxylates can be used either as a powder or as an aqueous solution.
  • the content of detergents or cleaning agents in (co) polymeric polycarboxylates is preferably from 0.5 to 20% by weight and in particular from 3 to 10% by weight.
  • the polymers may also contain allylsulfonic acids such as allyloxybenzenesulfonic acid and methallylsulfonic acid as a monomer.
  • biodegradable polymers of more than two different monomer units for example those which contain as monomers salts of acrylic acid and maleic acid and vinyl alcohol or vinyl alcohol derivatives or as monomers salts of acrylic acid and 2-alkylallylsulfonic acid and sugar derivatives ,
  • copolymers are those which have as their monomers acrolein and acrylic acid / acrylic acid salts or acrolein and vinyl acetate.
  • Effective polymers as softeners are, for example, the sulfonic acid-containing polymers which are used with particular preference.
  • sulfonic acid-containing polymers are copolymers of unsaturated carboxylic acids, sulfonic acid-containing monomers and optionally other ionic or nonionic monomers.
  • R 1 to R 3 independently of one another are -H, -CH 3 , a straight-chain or branched saturated alkyl radical having 2 to 12 carbon atoms, a straight-chain or branched, mono- or polyunsaturated alkenyl radical having 2 to 12 carbon atoms, NH 2 , -OH or -COOH substituted alkyl or alkenyl radicals or -COOH or -COOR 4 , wherein R 4 is a saturated or unsaturated, straight-chain or branched hydrocarbon radical having 1 to 12 carbon atoms.
  • Particularly preferred monomers containing sulfonic acid groups are 1-acrylamido-1-propanesulfonic acid, 2-acrylamido-2-propanesulfonic acid, 2-acrylamido-2-methyl-1-propanesulfonic acid, 2-methacrylamido-2-methyl-1-propanesulfonic acid, 3-Methacrylamido-2-hydroxypropanesulfonic acid, allylsulfonic acid, methallylsulfonic acid, allyloxybenzenesulfonic acid, methallyloxybenzenesulfonic acid, 2-hydroxy-3- (2-propenyloxy) propanesulfonic acid, 2-methyl-2-propene-1-sulfonic acid, styrenesulfonic acid, vinylsulfonic acid, 3-sulfopropyl acrylate , 3-sulfopropyl methacrylate, sulfomethacrylamide, sulfomethylmethacrylamide and water-soluble salts of said acids.
  • Particularly suitable other ionic or nonionic monomers are ethylenically unsaturated compounds.
  • the content of the polymers used in these other ionic or nonionic monomers is preferably less than 20% by weight, based on the polymer.
  • copolymers consist of i) one or more unsaturated carboxylic acids from the group of acrylic acid, methacrylic acid and / or maleic acid ii) one or more sulfonic acid group-containing monomers of the formulas:
  • the copolymers may contain the monomers from groups i) and ii) and, if appropriate, iii) in varying amounts, it being possible for all representatives from group i) to be combined with all representatives from group ii) and all representatives from group iii).
  • Particularly preferred polymers have certain structural units, which are described below. For example, copolymers which are structural units of the formula are preferred
  • polymers are prepared by copolymerization of acrylic acid with a sulfonic acid-containing acrylic acid derivative. If the sulfonic acid-containing acrylic acid derivative is copolymerized with methacrylic acid, another polymer is obtained whose use is also preferred.
  • the corresponding copolymers contain the structural units of the formula
  • Acrylic acid and / or methacrylic acid can also be copolymerized completely analogously with methacrylic acid derivatives containing sulfonic acid groups, as a result of which the structural units in the molecule are changed.
  • maleic acid can also be used as a particularly preferred monomer from group i). This gives way to inventively preferred copolymers, the structural units of the formula
  • the sulfonic acid groups may be wholly or partially in neutralized form, i. the acidic acid of the sulfonic acid group in some or all sulfonic acid groups can be exchanged for metal ions, preferably alkali metal ions and in particular for sodium ions.
  • metal ions preferably alkali metal ions and in particular for sodium ions.
  • partially or fully neutralized sulfonic acid-containing copolymers is preferred according to the invention.
  • the monomer distribution of the copolymers preferably used according to the invention in the case of copolymers which contain only monomers from groups i) and ii) is preferably in each case from 5 to 95% by weight i) or ii), particularly preferably from 50 to 90% by weight monomer from group i) and from 10 to 50% by weight of monomer from group ii), in each case based on the polymer.
  • terpolymers particular preference is given to those containing from 20 to 85% by weight of monomer from group i), from 10 to 60% by weight of monomer from group ii) and from 5 to 30% by weight of monomer from group iii) ,
  • the molar mass of the sulfo copolymers preferably used according to the invention can be varied in order to adapt the properties of the polymers to the desired end use.
  • Preferred washing or cleaning agents are characterized in that the copolymers have molar masses of 2000 to 200,000 gmol "1 , preferably from 4000 to 25,000 gmol '1 and in particular from 5000 to 15,000 gmol ' 1 .
  • polymeric aminodicarboxylic acids their salts or their precursors. Particular preference is given to polyaspartic acids or their salts.
  • polyacetals which can be obtained by reacting dialdehydes with polyolcarboxylic acids which have 5 to 7 C atoms and at least 3 hydroxyl groups.
  • Preferred polyacetals are obtained from dialdehydes such as glyoxal, glutaraldehyde, terephthalaldehyde and mixtures thereof and from polyol carboxylic acids such as gluconic acid and / or glucoheptonic acid.
  • Further suitable organic builder substances are dextrins, for example oligomers or polymers of carbohydrates, which can be obtained by partial hydrolysis of starches. The hydrolysis can be carried out by customary, for example acid or enzyme catalyzed processes.
  • it is hydrolysis products having average molecular weights in the range of 400 to 500,000 g / mol.
  • a polysaccharide with a dextrose equivalent (DE) in the range from 0.5 to 40, in particular from 2 to 30 is preferred, DE being a common measure of the reducing action of a polysaccharide compared to dextrose, which has a DE of 100 , is.
  • DE dextrose equivalent
  • Usable are both maltodextrins with a DE between 3 and 20 and dry glucose syrups with a DE between 20 and 37 and so-called yellow dextrins and white dextrins with higher molecular weights in the range from 2000 to 30,000 g / mol.
  • oxidized derivatives of such dextrins are their reaction products with oxidizing agents which are capable of oxidizing at least one alcohol function of the saccharide ring to the carboxylic acid function.
  • Ethylenediamine-N, N'-disuccinate (EDDS) is preferably used in form of its sodium or magnesium salts.
  • glycerol disuccinates and glycerol trisuccinates are also preferred. Suitable amounts are from 3 to 15 wt .-%.
  • the machine dishwashing detergents according to the invention particularly preferably comprise methylglycinediacetic acid or a salt of methylglycinediacetic acid, the weight fraction of methylglycinediacetic acid or of the salt of methylglycinediacetic acid preferably being between 0.5 and 15% by weight, preferably between 0.5 and 10% by weight. and in particular between 0.5 and 6 wt .-% is.
  • organic cobuilders are, for example, acetylated hydroxycarboxylic acids or their salts, which may optionally also be present in lactone form and which contain at least 4 carbon atoms and at least one hydroxyl group and a maximum of two acid groups.
  • the group of surfactants includes nonionic, anionic, cationic and amphoteric surfactants.
  • nonionic surfactants it is possible to use all nonionic surfactants known to the person skilled in the art.
  • Suitable nonionic surfactants are, for example, alkyl glycosides of the general formula RO (G) x in which R is a primary straight-chain or methyl-branched, in particular 2-methyl-branched aliphatic radical having 8 to 22, preferably 12 to 18 carbon atoms and G is the symbol which is a glycose unit having 5 or 6 C atoms, preferably glucose.
  • the degree of oligomerization x which indicates the distribution of monoglycosides and oligoglycosides, is an arbitrary number between 1 and 10; preferably x is 1, 2 to 1, 4.
  • nonionic surfactants used either as the sole nonionic surfactant or in combination with other nonionic surfactants are alkoxylated, preferably ethoxylated or ethoxylated and propoxylated fatty acid alkyl esters, preferably having from 1 to 4 carbon atoms in the alkyl chain.
  • Nonionic surfactants of the amine oxide type for example N-cocoalkyl-N, N-dimethylamine oxide and N-tallowalkyl-N, N-dihydroxyethylamine oxide, and the fatty acid alkanolamides may also be suitable.
  • the amount of these nonionic surfactants is preferably not more than that of the ethoxylated fatty alcohols, especially not more than half thereof.
  • surfactants are polyhydroxy fatty acid amides of the formula
  • R is an aliphatic acyl radical having 6 to 22 carbon atoms
  • R 1 is hydrogen, an alkyl or hydroxyalkyl radical having 1 to 4 carbon atoms
  • [Z] is a linear or branched polyhydroxyalkyl radical having 3 to 10 carbon atoms and 3 to 10 hydroxyl groups.
  • the polyhydroxy fatty acid amides are known substances which can usually be obtained by reductive amination of a reducing sugar with ammonia, an alkylamine or an alkanolamine and subsequent acylation with a fatty acid, a fatty acid alkyl ester or a fatty acid chloride.
  • the group of polyhydroxy fatty acid amides also includes compounds of the formula
  • R is a linear or branched alkyl or alkenyl radical having 7 to 12 carbon atoms
  • R 1 is a linear, branched or cyclic alkyl radical or an aryl radical having 2 to 8 carbon atoms
  • R 2 is a linear, branched or cyclic alkyl radical or an aryl radical or an oxyalkyl radical having 1 to 8 carbon atoms
  • Ci_ 4 alkyl or phenyl radicals are preferred
  • [Z] is a linear polyhydroxyalkyl radical whose alkyl chain is substituted with at least two hydroxyl groups, or alkoxylated, preferably ethoxylated or propoxylated derivatives of this residue.
  • [Z] is preferably obtained by reductive amination of a reduced sugar, for example glucose, fructose, maltose, lactose, galactose, mannose or xylose.
  • a reduced sugar for example glucose, fructose, maltose, lactose, galactose, mannose or xylose.
  • the N-alkoxy- or N-aryloxy-substituted compounds can be converted into the desired polyhydroxy fatty acid amides by reaction with fatty acid methyl esters in the presence of an alkoxide as catalyst.
  • washing or cleaning agents in particular automatic dishwashing detergents, contain nonionic surfactants from the group of the alkoxylated alcohols.
  • the nonionic surfactants used are preferably alkoxylated, advantageously ethoxylated, in particular primary, alcohols having preferably 8 to 18 carbon atoms and an average of 1 to 12 moles of ethylene oxide (EO) per mole of alcohol, in which the alcohol residue can be linear or preferably methyl-branched in the 2-position or linear and methyl-branched radicals in the mixture can contain, as they are usually present in Oxoalkoholresten.
  • EO ethylene oxide
  • alcohol ethoxylates with linear radicals of alcohols of natural origin having 12 to 18 carbon atoms, for example of coconut, palm, tallow or oleyl alcohol, and on average 2 to 8 moles of EO per mole of alcohol are preferred.
  • Preferred ethoxylated alcohols include, for example, C12 - 14 - alcohols with 3 EO or 4 EO, C9-11 alcohol containing 7 EO, C.
  • ethoxylated nonionic surfactant selected from C 6 - alkanols 2 o-monohydroxy or C 6 - 2 o-alkyl phenols or C- ⁇ 6 - 2 o-fatty alcohols and more than 12 mol, preferably more than 15 mol and in particular more than 20 moles of ethylene oxide per mole of alcohol were used.
  • a particularly preferred nonionic surfactant is made from a straight-chain fatty alcohol having 16 to 20 carbon atoms (C 16 - 2 o-alcohol), preferably a C 18 -alcohol and at least 12 mol, preferably at least 15 mol and in particular at least 20 mol of ethylene oxide obtained.
  • C 16 - 2 o-alcohol straight-chain fatty alcohol having 16 to 20 carbon atoms
  • C 18 -alcohol preferably a C 18 -alcohol and at least 12 mol, preferably at least 15 mol and in particular at least 20 mol of ethylene oxide obtained.
  • Nonionic surfactants which have a melting point above room temperature.
  • nonionic surfactants which have melting or softening points in the temperature range mentioned are, for example, low-foaming nonionic surfactants which may be solid or highly viscous at room temperature. If nonionic surfactants are used which are highly viscous at room temperature, it is preferred that they have a viscosity above 20 Pas, preferably above 35 Pas and in particular above 40 Pas. Also, nonionic surfactants having waxy consistency at room temperature are preferred depending on their purpose.
  • Nonionic surfactants from the group of alkoxylated alcohols are also used with particular preference.
  • the nonionic surfactant solid at room temperature preferably has propylene oxide units in the molecule.
  • such PO units make up to 25 wt .-%, more preferably up to 20 wt .-% and in particular up to 15 wt .-% of the total molecular weight of the nonionic surfactant from.
  • Particularly preferred nonionic surfactants are ethoxylated monohydroxyalkanols or alkylphenols which additionally have polyoxyethylene-polyoxypropylene block copolymer units.
  • the alcohol or alkylphenol content of such nonionic surfactant molecules preferably makes up more than 30% by weight, more preferably more than 50% by weight and in particular more than 70% by weight, of the total molecular weight of such nonionic surfactants.
  • Preferred agents are characterized in that they contain ethoxylated and propoxylated nonionic surfactants in which the propylene oxide units in the molecule up to 25 wt .-%, preferably up to 20 wt .-% and in particular up to 15 wt .-% of the total molecular weight of the nonionic Make up surfactants.
  • surfactants come from the groups of alkoxylated nonionic surfactants, in particular the ethoxylated primary alcohols and mixtures of these surfactants with structurally more complicated surfactants such as polyoxypropylene / polyoxyethylene / polyoxypropylene ((PO / EO / PO) surfactants).
  • Such (PO / EO / PO) nonionic surfactants are also characterized by good foam control.
  • nonionic surfactants having melting points above room temperature contain from 40 to 70% of a polyoxypropylene / polyoxyethylene / polyoxypropylene block polymer blend containing 75% by weight of a reverse block copolymer of polyoxyethylene and polyoxypropylene with 17 moles of ethylene oxide and 44 moles of propylene oxide and 25 Wt .-% of a block copolymer of polyoxyethylene and polyoxypropylene, initiated with trimethylolpropane and containing 24 moles of ethylene oxide and 99 moles of propylene oxide per mole of trimethylolpropane contains.
  • nonionic surfactants have been low foaming nonionic surfactants which have alternating ethylene oxide and alkylene oxide units.
  • surfactants with EO-AO-EO-AO blocks are preferred, wherein in each case one to ten EO or AO groups are bonded to each other before a block of the other groups follows.
  • R 1 is a straight-chain or branched, saturated or mono- or polyunsaturated C 6 - 24 represents alkyl or alkenyl; each group R 2 or R 3 is independently selected from -CH 3 , -CH 2 CH 3 , -CH 2 CH 2 -CH 3 , CH (CH 3 ) 2 and the indices w, x, y, z independently stand for integers from 1 to 6.
  • the preferred nonionic surfactants of the above formula can be prepared by known methods from the corresponding alcohols R 1 -OH and ethylene or alkylene oxide.
  • the radical R 1 in the above formula may vary depending on the origin of the alcohol. If native sources are used, the radical R 1 has an even number of carbon atoms and is usually unbranched, the linear radicals being selected from alcohols of natural origin having 12 to 18 C atoms, for example from coconut, palm, tallow or Oleyl alcohol, are preferred.
  • Alcohols which are accessible from synthetic sources are, for example, the Guerbet alcohols or methyl-branched or linear and methyl-branched radicals in the 2-position, as they are usually present in oxo alcohol radicals.
  • nonionic surfactants in which R 1 in the above formula is an alkyl radical having 6 to 24, preferably 8 to 20, particularly preferably 9 to 15 and in particular 9 to 11 Carbon atoms.
  • R 1 in the above formula is an alkyl radical having 6 to 24, preferably 8 to 20, particularly preferably 9 to 15 and in particular 9 to 11 Carbon atoms.
  • alkylene oxide unit which is contained in the preferred nonionic surfactants in alternation with the ethylene oxide unit, in particular butylene oxide is considered in addition to propylene oxide.
  • R 2 or R 3 are independently selected from -CH 2 CH 2 -CH 3 or -CH (CH 3 ) 2 are suitable.
  • R 2 or R 3 is a radical -CH 3 , w and x independently of one another for values of 3 or 4 and y and z independently of one another are values of 1 or 2.
  • nonionic surfactants having a C 9 _i 5 alkyl group having 1 to 4 ethylene oxide units followed by 1 to 4 propylene oxide units followed by 1 to 4 ethylene oxide units followed by 1 to 4 propylene oxide units.
  • These surfactants have the required low viscosity in aqueous solution and can be used according to the invention with particular preference.
  • R 1 -CH (OH) CH 2 O- (AO) w - (AO) x - (AO) y - (A '"O) z -R 2 in which R 1 and R 2 independently of one another a, a ', a "and a'" are each independently a radical selected from the group -CH 2 CH 2 represents a straight-chain or branched, saturated or mono- or polyunsaturated C 2 ⁇ 0 alkyl or alkenyl , -CH 2 CH 2 -CH 2 , -CH 2 -CH (CH 3 ), -CH 2 -CH 2 -CH 2 -CH 2 , -CH 2 -CH (CH 3 ) -CH 2 -, -CH 2 -CH (CH 2 -CH 3 ), and w, x, y and z are values between 0.5 and 90, where x, y and / or z can also be 0 are preferred according to the invention
  • end-capped poly (oxyalkylated) nonionic surfactants which, in accordance with the formula R 1 O [CH 2 CH 2 O] x CH 2 CH (OH) R 2 , in addition to a radical R 1 , which is linear or branched, saturated or unsaturated, aliphatic or aromatic hydrocarbon radicals having from 2 to 30 carbon atoms, preferably having from 4 to 22 carbon atoms, furthermore having a linear or branched, saturated or unsaturated, aliphatic or aromatic hydrocarbon radical R 2 having from 1 to 30 carbon atoms, where x is from 1 to 30 carbon atoms 90, preferably for values between 30 and 80 and in particular for values between 30 and 60.
  • surfactants of the formula R 1 O [CH 2 CH (CH 3 ) O] x [CH 2 CH 2 O] y CH 2 CH (OH) R 2 , in which R 1 is a linear or branched aliphatic hydrocarbon radical with 4 R 2 is a linear or branched hydrocarbon radical having 2 to 26 carbon atoms or mixtures thereof and x is values between 0.5 and 1, 5 and y is a value of at least 15.
  • nonionic surfactants are the end-capped poly (oxyalkylated) nonionic surfactants of the formula R 1 O [CH 2 CH (R 3 ) O] x [CH 2 ] k CH (OH) [CH 2 ] J OR 2 , in which R 1 and R 2 is a linear or branched, saturated or unsaturated, aliphatic or aromatic hydrocarbon radical having 1 to 30 carbon atoms, R 3 is H or a methyl, ethyl, n-propyl, iso-propyl, n-butyl, 2- Butyl or 2-methyl-2-butyl radical, x are values between 1 and 30, k and j are values between 1 and 12, preferably between 1 and 5.
  • each R 3 in the above formula R 1 O [CH 2 CH (R 3 ) O] x [CH 2 ] k CH (OH) [CH 2 ] J OR 2 may be different.
  • R 1 and R 2 are preferably linear or branched, saturated or unsaturated, aliphatic or aromatic hydrocarbon radicals having 6 to 22 carbon atoms, with radicals having 8 to 18 carbon atoms being particularly preferred.
  • R 3 H, -CH 3 or -CH 2 CH 3 are particularly preferred.
  • Particularly preferred values for x are in the range from 1 to 20, in particular from 6 to 15.
  • each R 3 in the above formula may be different if x> 2.
  • the alkylene oxide unit in the square bracket can be varied.
  • the value 3 for x has been selected here by way of example and may well be greater, with the variation width increasing with increasing x values and including, for example, a large number (EO) groups combined with a small number (PO) groups, or vice versa ,
  • R 1 , R 2 and R 3 are as defined above and x is from 1 to 30, preferably from 1 to 20 and in particular from 6 to 18.
  • Particularly preferred are surfactants in which the radicals R 1 and R 2 has 9 to 14 C atoms, R 3 is H and x assumes values of 6 to 15.
  • the stated C chain lengths and degrees of ethoxylation or degrees of alkoxylation of the abovementioned nonionic surfactants represent statistical mean values which, for a specific product, may be an integer or a fractional number. Due to the manufacturing processes, trade pro- Products of the formulas mentioned mostly not from an individual representative, but from mixtures, which can result in both the C chain lengths and for the degrees of ethoxylation and degrees of alkoxylation averages and resulting broken numbers.
  • nonionic surfactants can be used not only as individual substances, but also as surfactant mixtures of two, three, four or more surfactants.
  • Mixtures of surfactants are not mixtures of nonionic surfactants which fall in their entirety under one of the abovementioned general formulas, but rather mixtures which contain two, three, four or more nonionic surfactants which can be described by different general formulas ,
  • anionic surfactants are used as constituents of automatic dishwasher detergents, their content, based on the total weight of the compositions, is preferably less than 4% by weight, preferably less than 2% by weight and very particularly preferably less than 1% by weight. Machine dishwashing detergents which do not contain anionic surfactants are particularly preferred.
  • cationic active substances for example, cationic compounds of the following formulas can be used:
  • the content of cationic and / or amphoteric surfactants is preferably less than 6% by weight, preferably less than 4% by weight, very particularly preferably less than 2% by weight and in particular less than 1% by weight. %. Automatic dishwashing detergents containing no cationic or amphoteric surfactants are particularly preferred.
  • the group of polymers includes, in particular, the washing or cleaning-active polymers, for example the rinse aid polymers and / or polymers which act as softeners.
  • the washing or cleaning-active polymers for example the rinse aid polymers and / or polymers which act as softeners.
  • cationic, anionic and amphoteric polymers can be used in detergents or cleaners in addition to nonionic polymers.
  • “Cationic polymers” for the purposes of the present invention are polymers which carry a positive charge in the polymer molecule, which can be realized, for example, by (alkyl) ammonium groups or other positively charged groups present in the polymer chain quaternized cellulose derivatives, the polysiloxanes with quaternary groups, the cationic guar derivatives, the polymeric dimethyldiallylammonium salts and their copolymers with esters and amides of acrylic acid and methacrylic acid, the copolymers of vinylpyrrolidone with quaternized derivatives of dialkylamino acrylate and methacrylate, the vinylpyrrolidone-methoimidazolinium chloride Copolymers, the quaternized polyvinyl alcohols or the polymers specified under the INCI names Polyquaternium 2, Polyquaternium 17, Polyquaternium 18 and Polyquaternium 27.
  • amphoteric polymers further comprise, in addition to a positively charged group in the polymer chain, also negatively charged groups or monomer units. These groups may be, for example, carboxylic acids, sulfonic acids or phosphonic acids.
  • R 1 and R 4 are each independently H or a linear or branched hydrocarbon radical having 1 to 6 carbon atoms;
  • R 2 and R 3 are independently an alkyl, hydroxyalkyl, or aminoalkyl group in which the alkyl group is linear or branched and has from 1 to 6 carbon atoms, preferably a methyl group;
  • x and y independently represent integers between 1 and 3.
  • X represents a counterion, preferably a counterion selected from the group consisting of chloride, bromide, iodide, sulfate, hydrogensulfate, methosulfate, laurylsulfate, dodecylbenzenesulfonate, p-toluenesulfonate (tosylate), cumene sulfonate, xylenesulfonate, phosphate, citrate, formate, acetate or mixtures thereof.
  • a counterion selected from the group consisting of chloride, bromide, iodide, sulfate, hydrogensulfate, methosulfate, laurylsulfate, dodecylbenzenesulfonate, p-toluenesulfonate (tosylate), cumene sulfonate, xylenesulfonate, phosphate, citrate, formate, acetate
  • Preferred radicals R 1 and R 4 in the above formula are selected from -CH 3, -CH 2 -CH 3, - CH 2 -CH 2 -CH 3, -CH (CH 3) -CH 3, -CH 2 -OH , -CH 2 -CH 2 -OH, -CH (OH) -CH 3 , -CH 2 -CH 2 -OH, -CH 2 -CH (OH) -CH 3 , -CH (OH) -CH 2 -CH 3 , and - (CH 2 CH 2 -O) n H.
  • cationic or amphoteric polymers contain a monomer unit of the general formula
  • R1 HC CR2-C (O) -NH- (CH 2) - N + R3R4R5
  • X " in the R 1 , R 2 , R 3 , R 4 and R 5 are independently of one another a linear or branched, saturated or unsaturated alkyl or hydroxyalkyl radical having 1 to 6 carbon atoms, preferably a linear or branched alkyl radical selected from CH 3, -CH 2 -CH 3, -CH 2 -CH 2 - CH 3, -CH (CH 3) -CH 3, -CH 2 -OH, -CH 2 -CH 2 -OH, -CH (OH) -CH 3 , -CH 2 -CH 2 -CH 2 -OH, -CH 2 -CH (OH) -CH 3 , -CH (OH) -CH 3 , and - (CH 2 CH 2 -O) n is H and x is an integer between 1 and 6.
  • H 2 C C (C H 3 ) -C (O) -NH- (CH 2 ) X -N + (CH 3 ) 3
  • MAPTAC Metalacrylamidopropyl trimethylammonium chloride
  • amphoteric polymers have not only cationic groups but also anionic groups or monomer units.
  • anionic monomer units are derived, for example, from the group of linear or branched, saturated or unsaturated carboxylates, linear or branched, saturated or unsaturated phosphonates, linear or branched, saturated or unsaturated sulfates or linear or branched, saturated or unsaturated sulfonates.
  • Preferred monomer units are the acrylic acid, the (meth) acrylic acid, the (dimethyl) acrylic acid, the (ethyl) acrylic acid, the cyanoacrylic acid, the vinylessingic acid, the allylacetic acid, the crotonic acid, the maleic acid, the fumaric acid, the Cinnamic acid and its derivatives, the allylsulfonic acids such as allyloxybenzenesulfonic acid and methallylsulfonic acid or the allylphosphonic acids.
  • Preferred amphoteric polymers which can be used are from the group of the alkylacrylamide / acrylic acid copolymers, the alkylacrylamide / methacrylic acid copolymers, the alkylacrylamide / methylmethacrylic acid copolymers, the alkylacrylamide / acrylic acid / alkylaminoalkyl (meth) acrylic acid copolymers, the alkylacrylamide / methacrylic acid / alkylaminoalkyl (meth) acrylic acid copolymers which cationically derivatized alkylacrylamide / methylmethacrylic acid / alkylaminoalkyl (meth) acrylic acid copolymers, the alkylacrylamide / alkymethacrylate / alkylaminoethyl methacrylate / alkyl methacrylate copolymers and the copolymers of unsaturated carboxylic acids unsaturated carboxylic acids and optionally further ionic or nonionic monomers
  • Preferred zwitterionic polymers are from the group of acrylamidoalkyltri alkylammonium chloride / acrylic acid copolymers and their alkali metal and ammonium salts, the acrylamidoalkyltrialkylammonium chloride / methacrylic acid copolymers and their alkali metal and ammonium salts and the methacroylethylbetaine / methacrylate copolymers.
  • amphoteric polymers which comprise, in addition to one or more anionic monomers as cationic monomers, methacrylamidoalkyltrialkylammonium chloride and dimethyl (diallyl) ammonium chloride.
  • amphoteric polymers are selected from the group consisting of the methacrylamidoalkyltri-alkylammonium chloride / dimethyl (diallyl) ammonium chloride / acrylic acid copolymers, the methacrylamidoalkyltrialkylammonium chloride / dimethyl (diallyl) ammonium chloride / methacrylic acid copolymers and the methacrylamidoalkyltrialkylammonium chloride / dimethy1-diallyl ammonium chloride / alkyl - (meth) acrylic acid copolymers and their alkali metal and ammonium salts.
  • amphoteric polymers from the group of the methacrylamidopropyltrimethylammonium chloride / dimethyl (diallyl) ammonium chloride / acrylic acid copolymers, the methacrylylpropyltrimethylammonium chloride / dimethyl (diallyl) ammonium chloride / acrylic acid copolymers and the methacrylamidopropyltrimethylammonium chloride / dimethyldiallylammonium chloride / - Alkyl (meth) acrylic acid copolymers and their alkali metal and ammonium salts.
  • the polymers are present in prefabricated form.
  • encapsulation of the polymers by means of water-soluble or water-dispersible coating compositions is suitable, preferably by means of water-soluble or water-dispersible natural or synthetic polymers; the encapsulation of the polymers by means of water-insoluble, meltable coating agent, preferably by means of water-insoluble coating agent from the group of waxes or paraffins having a melting point above 30 0 C; the co-granulation of the polymers with inert carrier materials, preferably with carrier materials from the group of washing- or cleaning-active substances, more preferably from the group of builders or cobuilders.
  • Detergents or cleaning agents contain the aforementioned cationic and / or amphoteric polymers preferably in amounts of between 0.01 and 10 wt .-%, each based on the total weight of the detergent or cleaning agent.
  • the bleaching agents are a particularly preferred washing or cleaning substance.
  • sodium percarbonate, sodium perborate tetrahydrate and sodium perborate monohydrate are of particular importance.
  • Other useful bleaching agents are, for example, peroxypyrophosphates, citrate perhydrates and H 2 O 2 -forming peracidic salts or peracids, such as perbenzoates, peroxophthalates, diperazelaic acid, phthaloiminoperacid or diperdodecanedioic acid.
  • bleaching agents from the group of organic bleaching agents can also be used.
  • Typical organic bleaches are the diacyl peroxides such as dibenzoyl peroxide.
  • peroxyacids examples of which include the alkyl peroxyacids and the aryl peroxyacids.
  • Preferred representatives are (a) the peroxybenzoic acid and its ring-substituted derivatives, such as alkylperoxybenzoic acids, but also peroxy- ⁇ -naphthoic acid and magnesium monoperphthalate, (b) the aliphatic or substituted aliphatic peroxyacids, such as peroxylauric acid, peroxystearic acid, ⁇ -phthalimidoperoxycaproic acid [Phthaliminoperoxyhexanoic acid (PAP ), o-carboxybenzamidoperoxycaproic acid, N-nonenylamidoperadipic acid and N-nonenylamidopersuccinates, and (c) aliphatic and araliphatic peroxydicarboxylic acids, such as 1,12-diperoxycarboxylic acid, 1,9-diper
  • bleaching agent and chlorine or bromine releasing substances can be used.
  • suitable chlorine or bromine-releasing materials are heterocyclic N-bromo and N-chloroamides, for example trichloroisocyanuric acid, tribromoisocyanuric acid, dibromoisocyanuric acid and / or dichloroisocyanuric acid (DICA) and / or their salts with cations such as potassium and sodium.
  • DICA dichloroisocyanuric acid
  • Hydantoin compounds such as 1,3-dichloro-5,5-dimethylhydantoin are also suitable.
  • washing or cleaning agents in particular automatic dishwashing agents, are preferred which contain from 1 to 35% by weight, preferably from 2.5 to 30% by weight, particularly preferably from 3.5 to 20% by weight and in particular from 5 to 15% by weight % Bleach, preferably sodium percarbonate.
  • the active oxygen content of the washing or cleaning agents, in particular the automatic dishwashing agents in each case based on the total weight of the composition, preferably between 0.4 and 10 wt .-%, particularly preferably between 0.5 and 8 wt .-% and in particular between 0.6 and 5 wt .-%.
  • Particularly preferred compositions have an active oxygen content above 0.3 wt .-%, preferably above 0.7 wt .-%, more preferably above 0.8 wt .-% and in particular above 1, 0 wt .-% to.
  • Bleach activators are used in detergents or cleaners, for example, to achieve an improved bleaching effect when cleaning at temperatures of 60 0 C and below.
  • As bleach activators it is possible to use compounds which, under perhydrolysis conditions, give aliphatic peroxocarboxylic acids having preferably 1 to 10 C atoms, in particular 2 to 4 C atoms, and / or optionally substituted perbenzoic acid.
  • Suitable substances are those which carry O- and / or N-acyl groups of the stated C atom number and / or optionally substituted benzoyl groups.
  • polyacylated alkylenediamines in particular tetraacetylethylenediamine (TAED), acylated triazine derivatives, in particular 1,5-diacetyl-2,4-dioxo-hexahydro-1,3,5-triazine (DADHT), acylated glycolurils, in particular tetraacetylglycoluril (TAGU), N-acylimides, in particular N-nonanoylsuccinimide (NOSI), acylated phenolsulfonates, in particular n-nonanoyl or isononanoyloxybenzenesulfonate (n- or iso-NOBS), carboxylic anhydrides, in particular phthalic anhydride, acylated polyhydric alcohols, in particular triacetin, ethylene glycol diacetate and 2, 5-diacetoxy-2,5-dihydrofuran, n-methyl-morpholin
  • bleach activators are preferably used in amounts of up to 10% by weight, in particular from 0.1% by weight to 8% by weight, especially from 2 to 8% by weight and more preferably from 2 to 6% by weight, based in each case on the total weight of bleach activator-containing agents.
  • bleach activators preferably used in the context of the present application are compounds from the group of cationic nitriles, in particular cationic nitriles of the formula
  • R 1 is -H, -CH 3, a C 2 - 24 alkyl or alkenyl group, a substituted C 2-24 -alkyl or -alkenyl radical having at least one substituent from the group -Cl, -Br, - OH, -NH 2 , -CN, an alkyl or Alkenylarylrest with a C
  • bleach catalysts can also be used.
  • These substances are bleach-enhancing transition metal salts or transition metal complexes such as, for example, Mn, Fe, Co, Ru or Mo saline complexes or carbonyl complexes.
  • Mn, Fe, Co, Ru, Mo, Ti, V and Cu complexes with N-containing tripod ligands and Co, Fe, Cu and Ru ammine complexes can also be used as bleach catalysts.
  • Bleach-enhancing transition metal complexes in particular with the central atoms Mn, Fe, Co, Cu, Mo, V, Ti and / or Ru, preferably selected from the group of manganese and / or cobalt salts and / or complexes, more preferably the cobalt (ammin ) Complexes, the cobalt (acetate) complexes, the cobalt (carbonyl) complexes, the chlorides of cobalt or manganese, manganese sulfate are used in conventional amounts, preferably in an amount up to 5 wt .-%, in particular of 0, 0025 wt .-% to 1 wt .-% and particularly preferably from 0.01 wt .-% to 0.25 wt .-%, each based on the total weight of the bleach activator-containing agents used. In special cases, however, more bleach activator can also be used.
  • complexes of manganese in the oxidation state II, IM, IV or IV which preferably contain one or more macrocyclic ligand (s) with the donor functions N, NR, PR, O and / or S.
  • ligands are used which have nitrogen donor functions.
  • bleach catalyst (s) in the compositions of the invention, which as macromolecular ligands 1, 4,7-trimethyl-1, 4,7-triazacyclononan (Me-TACN), 1, 4,7-Triazacyclononan (TACN), 1, 5,9-trimethyl-1, 5,9-triazacyclododecane (Me-TACD), 2-methyl-1, 4,7-trimethyl-1, 4,7-triazacyclononane (Me / Me-TACN ) and / or 2-methyl-1, 4,7-triazacyclononane (Me / TACN).
  • macromolecular ligands 1, 4,7-trimethyl-1, 4,7-triazacyclononan (Me-TACN), 1, 4,7-Triazacyclononan (TACN), 1, 5,9-trimethyl-1, 5,9-triazacyclododecane (Me-TACD), 2-methyl-1, 4,7-trimethyl-1, 4,7-triazacyclononane (Me / Me-TACN )
  • detergents or cleaners enzymes can be used. These include in particular proteases, amylases, lipases, hemicellulases, cellulases, perhydrolases or oxidoreductases, and preferably mixtures thereof. These enzymes are basically of natural origin; starting from the natural ones Molecules are available for use in detergents or cleaners improved variants available, which are preferably used accordingly.
  • Detergents or cleaning agents contain enzymes preferably in total amounts of 1 ⁇ 10 -6 to 5 wt .-% based on active protein. The protein concentration can be determined by known methods, for example the BCA method or the biuret method.
  • subtilisin type those of the subtilisin type are preferable.
  • these are the subtilisins BPN 'and Carlsberg and their further developed forms, the protease PB92, the subtilisins 147 and 309, the alkaline protease from Bacillus lentus, subtilisin DY and the enzymes thermitase which can no longer be assigned to the subtilisins in the narrower sense, Proteinase K and the proteases TW3 and TW7.
  • amylases which can be used according to the invention are the ⁇ -amylases from Bacillus licheniformis, from B. amyloliquefaciens, from B. stearothermophilus, from Aspergillus niger and
  • lipases or cutinases are also usable according to the invention.
  • these include, for example, the lipases originally obtainable from Humicola lanuginosa (Thermomyces lanuginosus) or further developed, in particular those with the amino acid exchange D96L.
  • the cutinases can be used, which were originally isolated from Fusarium solani pisi and Humicola insolens. It is also possible to use lipases, or cutinases, whose initial enzymes were originally isolated from Pseudomonas mendocina and Fusarium solanii.
  • Oxidoreductases for example oxidases, oxygenases, catalases, peroxidases, such as halo, chloro, bromo, lignin, glucose or manganese peroxidases, dioxygenases or laccases (phenol oxidases, polyphenol oxidases) can be used according to the invention to increase the bleaching effect.
  • organic, particularly preferably aromatic, interacting with the enzymes compounds are added to the Enhance the activity of the respective oxidoreductases (enhancers) or to ensure at very different redox potentials between the oxidizing enzymes and the stains electron flow (mediators).
  • the enzymes can be used in any form known in the art. These include, for example, the solid preparations obtained by granulation, extrusion or lyophilization or, especially in the case of liquid or gel-form detergents, solutions of the enzymes, advantageously as concentrated as possible, sparing in water and / or added with stabilizers.
  • the enzymes may be encapsulated for both the solid and liquid dosage forms, for example by spray-drying or extruding the enzyme solution together with a preferably natural polymer or in the form of capsules, for example those in which the enzymes are entrapped as in a solidified gel or in those of the core-shell type in which an enzyme-containing core is coated with a water, air and / or chemical impermeable protective layer.
  • a preferably natural polymer or in the form of capsules for example those in which the enzymes are entrapped as in a solidified gel or in those of the core-shell type in which an enzyme-containing core is coated with a water, air and / or chemical impermeable protective layer.
  • further active ingredients for example stabilizers, emulsifiers, pigments, bleaches or dyes, may additionally be applied.
  • Such capsules are applied by methods known per se, for example by shaking or rolling granulation or in fluid-bed processes.
  • such granules for example by applying polymeric
  • a protein and / or enzyme may be particularly protected during storage against damage such as inactivation, denaturation or degradation, such as by physical influences, oxidation or proteolytic cleavage.
  • damage such as inactivation, denaturation or degradation, such as by physical influences, oxidation or proteolytic cleavage.
  • inhibition of proteolysis is particularly preferred, especially if the agents also contain proteases.
  • Detergents may contain stabilizers for this purpose; the provision of such means constitutes a preferred embodiment of the present invention.
  • Glass corrosion inhibitors preferably solid protease preparations and / or amylase preparations
  • Glass corrosion inhibitors prevent the occurrence of haze, streaks and scratches, but also iridescence of the glass surface of machine-cleaned glasses.
  • Preferred glass corrosion inhibitors come from the group of magnesium and zinc salts and magnesium and zinc complexes.
  • preferred zinc salts preferably organic acids, particularly preferably organic carboxylic acids, ranging from salts which are difficult or insoluble in water, ie a solubility below 100 mg / l, preferably below 10 mg / l, in particular below 0.01 have mg / l, to those salts which have a solubility in water above 100 mg / l, preferably above 500 mg / l, more preferably above 1 g / l and in particular above 5 g / l (all solubilities at 20 0 C. water temperature).
  • the first group of zinc salts includes, for example, the zinc nitrate, the zinc oleate and the zinc stearate, and the group of soluble zinc salts includes, for example, zinc formate, zinc acetate, zinc lactate and zinc gluconate.
  • the glass corrosion inhibitor at least one zinc salt of an organic carboxylic acid, more preferably a zinc salt from the group zinc stearate, zinc oleate, zinc gluconate, zinc acetate, zinc lactate and Zinkeitrat used.
  • Zinc ricinoleate, zinc abietate and zinc oxalate are also preferred.
  • the content of zinc salt in detergents or cleaners is preferably between 0.1 and 5% by weight, preferably between 0.2 and 4% by weight and in particular between 0.4 and 3% by weight.
  • the content of zinc in oxidized form (calculated as Zn 2+ ) between 0.01 to 1 wt .-%, preferably between 0.02 to 0.5 wt .-% and in particular between 0.04 to 0, 2 wt .-%, each based on the total weight of the glass corrosion inhibitor-containing agent.
  • Corrosion inhibitors serve to protect the items to be washed or the machine, with particular silver protectants being of particular importance in the field of automatic dishwashing. It is possible to use the known substances of the prior art. In general, silver protectants selected from the group of triazoles, benzotriazoles, bisbenzotriazoles, aminotriazoles, alkylaminotriazoles and transition metal salts or complexes can be used in particular. Benzotriazole and / or alkylaminotriazole are particularly preferred.
  • 3-amino-5-alkyl-1,2,4-triazoles or their physiologically tolerated salts preference is given to using 3-amino-5-alkyl-1,2,4-triazoles or their physiologically tolerated salts, these substances being particularly preferably present in a concentration of 0.001 to 10% by weight, preferably 0.0025 to 2 Wt .-%, particularly preferably 0.01 to 0.04 wt .-% are used.
  • Preferred acids for salt formation are hydrochloric acid, sulfuric acid, phosphoric acid, carbonic acid, sulphurous acid, organic carboxylic acids such as acetic, glycolic, citric and succinic acid.
  • cleaner formulations often contain active chlorine-containing agents which can markedly reduce the corrosion of the silver surface.
  • active chlorine-containing agents which can markedly reduce the corrosion of the silver surface.
  • oxygen- and nitrogen-containing organic redox-active compounds such as di- and trihydric phenols, e.g. Hydroquinone, pyrocatechol, hydroxyhydroquinone, gallic acid, phloroglucinol, pyrogallol or derivatives of these classes of compounds used.
  • salt and complex inorganic compounds such as salts of the metals Mn, Ti, Zr, Hf, V, Co and Ce are often used.
  • transition metal salts which are selected from the group of manganese and / or cobalt salts and / or complexes, more preferably the cobalt (ammin) complexes, the cobalt (acetate) complexes, the cobalt (carbonyl) Complexes, the chlorides of cobalt or manganese and manganese sulfate.
  • zinc compounds can be used to prevent corrosion on the items to be washed.
  • redox-active substances can be used. These substances are preferably inorganic redox-active substances from the group of manganese, titanium, zirconium, hafnium, vanadium, cobalt and cerium salts and / or complexes, wherein the metals preferably in one of the oxidation states II, III, IV, V or VI are present.
  • the metal salts or metal complexes used should be at least partially soluble in water.
  • the counterions suitable for salt formation include all conventional mono-, di-, or tri-negatively charged inorganic anions, e.g. Oxide, sulfate, nitrate, fluoride, but also organic anions such as e.g. Stearate.
  • metal salts and / or metal complexes are selected from the group MnSO 4 , Mn (II) citrate, Mn (II) stearate, Mn (II) acetylacetonate, Mn (II) - [1-hydroxyethane-1, 1- diphosphonate], V 2 O 5 , V 2 O 4 , VO 2 , TiOSO 4 , K 2 TiF 6 , K 2 ZrF 6 , CoSO 4 , Co (NO 3 ) 2 , Ce (NO 3 ) 3 , as well as their Mixtures such that the metal salts and / or metal complexes selected from the group MnSO 4 , Mn (II) citrate, Mn (II) stearate, Mn (II) acetylacetonate, Mn (II) - [1-hydroxyethane-1, 1-diphosphonate], V 2 O 5 , V 2 O 4 , VO 2 , TiOSO 4 , M
  • the inorganic redox-active substances are preferably coated, ie completely coated with a water-tight material which is readily soluble in the cleaning temperatures, in order to prevent their premature decomposition or oxidation during storage.
  • Preferred coating materials which are applied by known processes, such as Sandwik's melt coating process from the food industry are paraffins, microwaxes, waxes of natural origin such as carnauba wax, candellila wax, beeswax, higher melting alcohols such as hexadecanol, soaps or fatty acids.
  • the metal salts and / or metal complexes mentioned are contained in cleaning agents, preferably in an amount of 0.05 to 6 wt .-%, preferably 0.2 to 2.5 wt .-%, each based on the total agent.
  • disintegration aids so-called tablet disintegrants
  • tablet disintegrants or disintegrants are meant excipients which ensure the rapid disintegration of tablets in water or other media and for the rapid release of the active ingredients.
  • disintegration aids in amounts of from 0.5 to 10% by weight, preferably from 3 to 7% by weight and in particular from 4 to 6% by weight, based in each case on the total weight of the disintegration aid-containing agent.
  • Preferred disintegrating agents are cellulosic disintegrating agents, so that preferred washing or cleaning agents comprise such cellulose-based disintegrants in amounts of from 0.5 to 10% by weight, preferably from 3 to 7% by weight and in particular from 4 to 6% by weight. % contain.
  • Pure cellulose has the formal gross composition (C 6 H 10 Os) n and is formally a ⁇ -1,4-polyacetal of cellobiose, which itself consists of two molecules Glucose is built up.
  • Suitable celluloses consist of about 500 to 5000 glucose units and accordingly have average molecular weights of 50,000 to 500,000.
  • Cellulose-based disintegrating agents which can be used in the context of the present invention are also cellulose derivatives obtainable by polymer-analogous reactions of cellulose.
  • Such chemically modified celluloses include, for example, products of esterifications or etherifications in which hydroxy hydrogen atoms have been substituted.
  • Celluloses in which the hydroxy groups have been replaced by functional groups which are not bonded via an oxygen atom can also be used as cellulose derivatives.
  • the group of cellulose derivatives includes, for example, alkali metal celluloses, carboxymethylcellulose (CMC), cellulose esters and ethers, and aminocelluloses.
  • the cellulose derivatives mentioned are preferably not used alone as disintegrating agents based on cellulose, but used in admixture with cellulose.
  • the content of these mixtures of cellulose derivatives is preferably below 50% by weight, particularly preferably below 20% by weight, based on the cellulose-based disintegrating agent. It is particularly preferred to use cellulose-based disintegrating agent which is free of
  • the cellulose used as a disintegration aid is preferably not used in finely divided form, but converted into a coarser form, for example granulated or compacted, before it is added to the premixes to be tabletted.
  • the particle sizes of such disintegrating agents are usually above 200 .mu.m, preferably at least 90 wt .-% between 300 and 1600 .mu.m and in particular at least 90 wt .-% between 400 and 1200 microns.
  • microcrystalline cellulose As a further disintegrating agent based on cellulose or as a component of this component microcrystalline cellulose can be used.
  • This microcrystalline cellulose is obtained by partial hydrolysis of celluloses under conditions which attack and completely dissolve only the amorphous regions (about 30% of the total cellulose mass) of the celluloses, leaving the crystalline regions (about 70%) intact. Subsequent deaggregation of the microfine celluloses produced by the hydrolysis yields the microcrystalline celluloses which have primary particle sizes of about 5 ⁇ m and can be compacted, for example, into granules having an average particle size of 200 ⁇ m.
  • Preferred disintegration aids preferably a cellulose-based disintegration assistant, preferably in granular, cogranulated or compacted form, are present in the desintegration agent-containing agents in amounts of from 0.5 to 10% by weight, preferably from 3 to 7% by weight and in particular from 4 to 6 wt .-%, each based on the total weight of the desintegration agent-containing agent.
  • gas-evolving effervescent systems can furthermore be used as tablet disintegration auxiliaries.
  • the gas-evolving effervescent system may consist of a single substance that releases a gas upon contact with water. Among these compounds, mention should be made in particular of magnesium peroxide, which liberates oxygen on contact with water.
  • the gas-releasing effervescent system in turn consists of at least two constituents which react with one another to form gas.
  • the bubble system used in detergents and cleaners can be selected both on the basis of economic and environmental considerations.
  • Preferred effervescent systems consist of alkali metal carbonate and / or hydrogen carbonate and an acidifying agent which is suitable for liberating carbon dioxide from the alkali metal salts in aqueous solution.
  • Acidificationsmittel which release carbon dioxide from the alkali metal salts in aqueous solution, for example, boric acid and alkali metal hydrogen sulfates, alkali metal dihydrogen phosphates and other inorganic salts can be used.
  • organic acidifying agents preference is given to using organic acidifying agents, the citric acid being a particularly preferred acidifying agent. Acidifying agents in the effervescent system from the group of organic di-, tri- and oligocarboxylic acids or mixtures are preferred.
  • perfume oils or perfumes within the scope of the present invention, individual fragrance compounds, e.g. the synthetic products of the ester, ether, aldehyde, ketone, alcohol and hydrocarbon type are used. Preferably, however, mixtures of different fragrances are used, which together produce an attractive fragrance.
  • perfume oils may also contain natural fragrance mixtures such as are available from vegetable sources, e.g. Pine, Citrus, Jasmine, Patchouly, Rose or Ylang-Ylang oil.
  • a fragrance In order to be perceptible, a fragrance must be volatile, whereby besides the nature of the functional groups and the structure of the chemical compound, the molecular weight also plays an important role. For example, most odorants have molecular weights up to about 200 daltons, while molecular weights of 300 daltons and above are more of an exception. Due to the different volatility of fragrances, the smell of a perfume or fragrance composed of several fragrances changes during evaporation, whereby the odor impressions in "top note”, “middle note” or “body note” ) and “base note” (end note or dry out).
  • the top note of a perfume or fragrance is not only from volatile compounds, while the base note for the most part less volatile, ie adherent fragrances exists.
  • more volatile fragrances can be bound to certain fixatives, preventing them from evaporating too quickly.
  • the subsequent classification of the fragrances in "more volatile” or “adherent” fragrances so nothing about the olfactory impression and whether the corresponding fragrance is perceived as a head or middle note, nothing said.
  • the fragrances can be processed directly, but it can also be advantageous to apply the fragrances on carriers that provide a slower fragrance release for long-lasting fragrance.
  • carrier materials for example, cyclodextrins have been proven, the cyclodextrin-perfume complexes can be additionally coated with other excipients.
  • Preferred dyes the selection of which presents no difficulty to the skilled person, have a high storage stability and insensitivity to the other ingredients of the compositions and to light and no pronounced substantivity to the substrates to be treated with the dye-containing agents such as textiles, glass, ceramics or plastic dishes, so as not to stain them.
  • the colorant When choosing the colorant, it must be taken into account that the colorants have a high storage stability and insensitivity to light. At the same time, it should also be taken into account when choosing suitable colorants that colorants have different stabilities to oxidation. In general, water-insoluble colorants are more stable to oxidation than water-soluble colorants. Depending on the solubility and thus also on the sensitivity to oxidation, the concentration of the colorant in the detergents or cleaners varies. In the case of readily water-soluble colorants, colorant concentrations in the range of a few 10 -2 to 10 -3 wt% are typically selected. On the other hand, in the case of the pigment dyes preferred in particular because of their brilliance, but less readily water-soluble, the suitable concentration of the colorant in detergents or cleaners is typically from about 10 -3 to 10 -4 % by weight.
  • Dyeing agents which can be oxidatively destroyed in the washing process and mixtures thereof with suitable blue dyes, so-called blue toners, are preferred. It has proven to be advantageous to use colorants which are soluble in water or at room temperature in liquid organic substances. Suitable examples are anionic colorants, for example anionic nitrosofarbstoffe.
  • a further subject matter of the present application is a process for producing a multi-phase detergent tablet from a base tablet and a core tablet which partially covers the top of the base tablet, comprising the steps of a) providing a base tablet which has a protrusion on its upper side; b) providing a core tablet having on its surface at least one recess; c) applying the core tablet to the top of the base tablet such that the protrusion of the base tablet engages in the recess of the core tablet.
  • the provision of the base tablet in step a) and / or the provision of the core tablet in step b) preferably takes place by pressing a particulate material.
  • the premix is compressed in a so-called matrix between two punches to form a solid compressed product.
  • This process hereinafter referred to as tableting, is divided into four sections: dosing, compaction (elastic deformation), plastic deformation and ejection.
  • the tabletting is preferably carried out on so-called rotary presses.
  • Plastic coatings, plastic inserts or plastic stamps are particularly advantageous.
  • Rotary punches have also proved to be advantageous, wherein, if possible, upper and lower punches should be rotatable. With rotating punches can be dispensed with a plastic insert usually. Here, the stamp surfaces should be electropolished.
  • Preferred processes in the context of the present invention are characterized in that the pressing takes place at pressing pressures of 0.01 to 50 kNcrrf 2 , preferably of 0.1 to 40 kNcrrf 2 and in particular of 1 to 25 kNcrr ⁇ 2 .
  • a further subject of the present application is therefore a process for the preparation of a detergent tablet (base tablet) comprising the steps of: a) introducing a first particulate composition into the matrix of a tablet press; b) pressing the first particulate composition by means of a press ram having on its pressing surface at least one trough.
  • Concentric presses can be provided to increase the throughput with two filling shoes, which only a semicircle must be run through to produce a tablet.
  • the tablets in the context of the present invention can also be multi-phase, in particular multi-layered.
  • the moldings can be made in a predetermined spatial form and predetermined size.
  • a form of space practically all useful manageable configurations come into consideration, for example, the training as a blackboard, the bar or bar shape, cubes, cuboids and corresponding space elements with flat side surfaces and in particular cylindrical configurations with circular or oval cross-section.
  • This last embodiment covers the presentation form of the tablet up to compact cylinder pieces with a ratio of height to diameter above 1.
  • step b) of the process according to the invention characterized in that the following further steps are carried out following step b) of the process according to the invention: c) introducing a second particulate composition into the matrix of a tablet press; d) Pressing the second particulate composition by means of a press ram having at least one depression on its pressing surface is preferred according to the invention. After pressing, the detergent tablets have a high stability.
  • the breaking strength of cylindrical shaped bodies can be determined by the measured quantity of the diametral breaking stress. This is determinable
  • ⁇ is the diametrical fracture stress (DFS) in Pa
  • P is the force in N which results in the pressure applied to the molded article causing the breakage of the molded article
  • D is the molded article diameter in meters and t the height of the moldings.
  • Another object of the present invention is therefore a process for the preparation of tablets from compressed particulate detergent or cleaner by per se known compression of particulate premixes, wherein for pressing an upper punch is used, which has on its pressing surface at least one trough, the horizontal extent is greater at the level of the pressing surface than the depth and is suitable for pressing Vorwölbitch.
  • the tablets to be pressed usually powdery or fine-grained material is, if not particularly complex and the production hindering precautions for a special distribution are taken when evenly distributed during filling in the press die.
  • the material must be compressed the most where the profile of the embossing element has the highest elevations.
  • the material to be pressed tries to avoid the highest pressure peaks by a movement in the direction of the less highly stressed areas, in the areas of the highest profile elevations also the highest specific surface pressures occur.
  • a tabletting die whose embossing element is designed in the described form, is advantageously anti-adhesion or at least adhesion-reducing. With such a pressing tool long tool life and perfect tablet surfaces can be achieved.
  • the coating of the base of the embossing element should therefore at the same time be hard and resistant to high surface loads, but on the other hand also have a friction-reducing or lubricating property.
  • nickel-containing surface coatings have proven to be very suitable, in which the finest PTFE particles (Teflon) are included. These give the coating anti-adhesion and material-seizure-preventing properties.
  • an embodiment for the adhesion-reducing Proven coating in which the base coating material instead of nickel from a nickel-phosphorus alloy. Preferred methods according to the invention are characterized in that the pressing surface of the press ram is coated to reduce adhesion.
  • the surface coating with at least adhesion-reducing effect has proven itself.
  • the surface of the pin is coated with a graphite layer, which are known as lubricating or slide-promoting, and here also serves as a binder for fixing diamond particles, which in turn give the surface the required hardness.
  • the at least adhesion-reducing coating consists essentially of carbon.
  • the pressing surface of the press ram is at least partially made of plastic, preferably a polyamide.
  • Base and trough are made of the same material
  • Base and trough are made of different materials, wherein the material used for the production of the base material has a higher hardness and lower Walkbar- speed than the material used for the production of the trough, this variant being particularly advantageous in terms of durability and the embossing elements has proved;
  • Base and trough are made of different materials, wherein the material used for the production of the base material has a lower hardness and higher Walkbar- speed than the material used for the production of the trough, this variant, especially in relation to the dissolution behavior of the resulting detergent tablets has proved advantageous
  • the term "hardness” is in the context of the present invention, the term for the resistance that opposes a solid body to the penetration of another body. While, for example, for minerals the so-called scratch hardness (hardness to Mohs) is measured, technically different methods for hardness testing have prevailed. Brinell, Rockwell and Vickers methods (especially for steel and other metals) are most commonly used. To determine the Brinell hardness (HB, ball hardness, DIN 50351) standardized steel or Widia balls with 10 mm diameter and a test load P (in terms of N) bumplessly in the substances to be tested pressed and the surface O (in mm 2 ) of the indented dome of the diameter d determined. The Brinell hardness is then given by:
  • the diameter of a ball impression which was generated by impact with the hand hammer (Poldihammer, scleroscope) or by a tensioned spring, serves as a basis for calculation.
  • Another dynamic method of determining hardness is the return method.
  • the Shore hardness determined in this way is determined in the case of steel by the ball impact test as rebound hardness or, in the case of rubber and other elastomers, as penetration resistance against a truncated cone.
  • the ball hardness is measured as the quotient of the test load and the surface of the impression of a steel ball (5 mm diameter) after 10, 30 or 60 seconds under load.
  • the embossing elements of the upper punches in preferred process variants have a geometry corresponding to these embodiments.
  • preferred methods according to the invention are characterized in that the trough in the pressing surface of the press ram on all sides by a web with a Minimum width of 2 mm is surrounded, wherein the groove surrounding the recess in the pressing surface of the press ram on all sides preferably has a relative web width ⁇ 0.5.
  • the trough in the pressing surface of the ram preferably surrounded by a flat base and in preferred embodiments has in cross-section the shape of a halo ellipsoid or a hemisphere, or the shape of an ellipsoidal segment or a spherical segment or cylindrical side walls and a concave bottom surface formed in a particularly preferred embodiment in cross-section at least partially conical.
  • the base tablet and the core tablet are connected to each other by an adhesive or plug connection as stated above.

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Abstract

La présente invention concerne un comprimé d'agent de lavage ou de nettoyage à plusieurs phases comprenant un comprimé de base et un comprimé noyau qui recouvre partiellement le côté supérieur du comprimé de base, le comprimé de base présentant sur son côté supérieur un pré-bombement et le comprimé noyau présentant à sa surface au moins une cavité. Le comprimé se caractérise en ce que le comprimé noyau est appliqué sur le côté supérieur du comprimé de base de sorte que le pré-bombement du comprimé de base vient en prise dans la cavité du comprimé noyau. Le comprimé de l'invention se caractérise par de bonnes propriétés de dissociation, une optique satisfaisante et une bonne simplicité de réalisation pour une dureté suffisante.
EP07765626A 2006-10-27 2007-06-26 Corps moulé d'agent de lavage ou de nettoyage Withdrawn EP2097503A1 (fr)

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EP3878935A1 (fr) * 2020-03-09 2021-09-15 Peter Obereisenbuchner Unité de dosage destiné au nettoyage mécanique des objets

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EP1179042B1 (fr) * 1999-05-17 2003-12-10 Reckitt Benckiser N.V. Procede de production d'une pastille a plusieurs couches
EP1292663B1 (fr) * 2000-06-23 2003-12-10 Reckitt Benckiser N.V. Pastilles de lessive a phases multiples et procedes de production de celles-ci

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* Cited by examiner, † Cited by third party
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See also references of WO2008049653A1 *

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WO2008049653A1 (fr) 2008-05-02

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