EP0658190B1 - Procede de production de comprimes de detergents - Google Patents

Procede de production de comprimes de detergents Download PDF

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Publication number
EP0658190B1
EP0658190B1 EP93919188A EP93919188A EP0658190B1 EP 0658190 B1 EP0658190 B1 EP 0658190B1 EP 93919188 A EP93919188 A EP 93919188A EP 93919188 A EP93919188 A EP 93919188A EP 0658190 B1 EP0658190 B1 EP 0658190B1
Authority
EP
European Patent Office
Prior art keywords
weight
tablets
mixture
tabletting
sodium metasilicate
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.)
Expired - Lifetime
Application number
EP93919188A
Other languages
German (de)
English (en)
Other versions
EP0658190A1 (fr
Inventor
Hans Kruse
Horst Prühs
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 EP0658190A1 publication Critical patent/EP0658190A1/fr
Application granted granted Critical
Publication of EP0658190B1 publication Critical patent/EP0658190B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/02—Inorganic compounds
    • C11D7/04—Water-soluble compounds
    • C11D7/10—Salts
    • C11D7/14—Silicates
    • 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
    • C11D17/0091—Dishwashing tablets
    • 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/02—Inorganic compounds
    • C11D7/04—Water-soluble compounds
    • C11D7/10—Salts
    • C11D7/16—Phosphates including polyphosphates

Definitions

  • the present invention relates to a method for producing detergent tablets, in particular for use in machine dishwashing, both in the commercial and in the household sector.
  • Powder, granular or tablet-shaped detergents for dishes in dishwashers essentially consist of sodium tripolyphosphate, alkali silicate, mostly alkali metasilicate, and optionally a weakly foaming, nonionic surfactant and bleaching agents, preferably those which give off active oxygen in aqueous solution. Above all, they serve to facilitate the removal of stains from tea, coffee or fruit juices.
  • the known agents are generally produced by customary production processes, such as mixing or granulating and / or further pressing.
  • disk-like tablets have been produced from simple mixtures of the known detergent components with the addition of a tabletting aid, not specified, and using a compression pressure of about 70 to 1000 kg / cm 2 .
  • Tablets of the type mentioned above are also described in German Offenlegungsschrift 28 57 001. They are also produced by pressing the mere mixtures of the components using appropriate pressures.
  • Lubricants, lubricants and disintegrants such as insoluble stearate salts, Fatty acids, fatty alcohols, starch, polyethylene glycol, Aerosil (R) , colloidal silica, alginates, Veegum (R) , sugar, gelatin and zeolites.
  • detergent tablets for machine dishwashing which contain a mixture of sodium acetate and spray-dried zeolite NaA as tabletting aid. They can also contain sodium metasilicate pentahydrate in amounts of 11.3% by weight and more. In the compression of the constituent mixtures described there, however, this portion did not develop a tabletting aid effect, i.e. the mixtures without sodium acetate and zeolite NaA stuck in the die when pressed.
  • Tablets for machine dishwashing are already known from German published patent application 1617088, which can be obtained by compressing a powdery mixture of sodium silicate with a water content of 0 to 20%, polymeric alkali phosphates, active chlorine compounds, so that compatible surfactants, fillers and paraffin oil can be obtained and should be stable in storage .
  • European patent application EP 224129 describes uniformly composed detergent tablets with a broad dissolution profile for machine dishwashing, which contain alkali metal silicates, which are a mixture of sodium metasilicate nonahydrate and anhydrous sodium metasilicate, and moreover must contain anhydrous pentasodium triphosphate, with a specific weight ratio between the two components is.
  • the present invention relates in particular to a process for the production of alkaline detergent tablets for machine dishwashing in commercial and domestic use, wherein a completely crystallized granulate with a bulk density of 800 to 1200, preferably 850 to 1100 g / l, obtained by (a) partial Hydrating 10 to 60, preferably 25 to 40 parts by weight of an anhydrous sodium tripolyphosphate, which consists of 60 to 100% of phase II and has an average grain size of 0.05 to 0.5 mm, in a continuously operating mixer ( 1.
  • further granulating aids such as anhydrous sodium carbonate, bicarbonate, sodium hydroxide or water glass, but also water, paraffin oil, which can simultaneously serve as a foam suppressant, and / or low-foaming nonionic surfactants can be added.
  • the amount of the surfactant additive should, however, be limited to 0.1 to 2, preferably 0.2 to 0.5,% by weight, since otherwise undesired foaming can occur when the tablets are used in the dishwashers in connection with the soiling of the dishes.
  • Suitable low-foaming nonionic surfactants are the known ethoxylation products of long-chain alcohols and alkylphenols, the free hydroxyl group of the polyethylene glycol ether residue being substituted by ether or acetal groups or by polypropylene glycol ether residues to reduce the tendency to foam.
  • Fatty alcohol polyethylene glycol ethers whose free hydroxyl groups are etherified with an n-alkyl radical (for example methyl, ethyl, propyl, butyl, pentyl) and are therefore particularly alkali-stable are particularly suitable.
  • the block polymers of ethylene oxide with polypropylene oxide are also suitable.
  • bleaching agents are preferably active oxygen-releasing compounds such as perborates and percarbonates, preferably in combination with bleach activators such as e.g. Tetraacetylethylenediamine (TAED) or tetraacetylglycoluril (TAGU) or peracids or their salts, e.g. the magnesium salt of monoperphthalic acid.
  • bleach activators such as Tetraacetylethylenediamine (TAED) or tetraacetylglycoluril (TAGU) or peracids or their salts, e.g. the magnesium salt of monoperphthalic acid.
  • TAED Tetraacetylethylenediamine
  • TAGU tetraacetylglycoluril
  • peracids or their salts e.g. the magnesium salt of monoperphthalic acid.
  • compounds which release active chlorine such as the salts of chlorine-substituted isocyanuric acids, in particular pure trichloroisocyanuri
  • enzymes can be used to improve the cleaning performance, preferably commercial amylases in amounts of 0.2 to 2, preferably 0.5 to 1% by weight.
  • part of the bleach-free granules can be bleached with stable bleaching agents or coloring pigments such as e.g. Phthalocyanine, stain and then mix in together with the bleaching agents.
  • Fragrances, known bactericidal and dirt-suspending agents, foam inhibitors and corrosion inhibitors can also be added.
  • the mixing of the prefabricated granules with the other detergent components takes place in known mixing devices such as a Lödige mixer.
  • the finished granulate-containing mixture is then used as tableting aid sodium metasilicate pentahydrate and / or sodium metasilicate nonahydrate in amounts of about 0.5 to 15, preferably about 8 up to 12% by weight, based on 100% of the total tablet granule mixture.
  • An improvement in the pressing properties is obtained by adding about 0.5 to 5% by weight, preferably about 1 to 3% by weight, of paraffin oil.
  • Pressing tools are used for pressing, the stamp surfaces of which are coated with a plastic (e.g. Delrin). Caking on the pressing tools does not occur. The tablets obtained disintegrate perfectly even after prolonged storage.
  • a plastic e.g. Delrin
  • the tablets obtained by this process have an average density of 1.3-1.6 g / cm 3 and, in addition to high mechanical stability, have a uniform porous structure with a large inner surface. They therefore disintegrate particularly quickly when used in the dishwasher.
  • the tablets according to the invention can also contain other inorganic phosphate substitutes.
  • the preferred inorganic phosphate substitutes include the synthetically produced zeolites of the NaA or NaX type, as described, for example, in US Pat. Nos. 2,882,243 and 2,882,244. They are used in amounts of 3 to 30% by weight, preferably 5 to 10% by weight, and are added in the second mixing stage.
  • the zeolites have an additional corrosion-inhibiting effect with regard to decorative glazes on porcelain or ceramic, which goes beyond that of the known tripolyphosphate / metasilicate mixtures.
  • the tablets according to the invention have excellent mechanical stability.
  • the tablets can also be used in commercial dishwashers, where they can be added to the tank water by hand or by an automatic cleaning dosing device. Since the cleaning solution is used directly, a quick dissolution of the tablets was necessary for this.
  • the detergent solution was used for several rinsing cycles, with constant dilution using fresh water and, accordingly, from time to time, subsequent dosing with new, quick-dissolving tablets had to be carried out in accordance with the following dosage scheme.
  • the dosing was carried out in a further experiment in a commercial dishwasher (box-type slide-through machine) using a rinsing-out meter in which 2 kg of these readily soluble tablets were deposited in the form of a sieve from the storage container. By spraying water on the loosely shaken tablet piles, these were brought into solution and the active ingredient was conveyed into the rinse liquor until the required concentration was reached.
  • the dosing quantity was regulated via the conductivity.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)

Claims (2)

  1. Procédé de production de comprimés de produits de nettoyage pour le lavage de la vaisselle à la machine dans le domaine industriel et domestique, par hydratation partielle de tripolyphosphate de sodium anhydre en tripolyphosphate hexahydraté, mélange de l'hydrate partiel avec du silicate de sodium (Na2O : SiO2 = 1:1 à 1:4) pulvérulent et essentiellement anhydre, par pulvérisation du mélange avec de l'eau ou avec une solution aqueuse de silicate, par granulation par mouvement avec prise en masse cristalline consécutive, dans lesquels éventuellement on peut ajouter par mélange d'autres constituants de produits de nettoyage, des agents de blanchiment ou des enzymes, par ajout d'agents adjuvants de compression et mise en comprimés du mélange à une pression de plus de 7 MPa (70 kp/cm2),
    caractérisé en ce que
    comme adjuvant de compression on met en oeuvre environ 0,5 à 15 % en poids rapporté à 100 % du mélange total de granulés pour comprimés, du métasilicate de sodium pentahydraté et/ou du métasilicate de sodium nonahydraté.
  2. Procédé selon la revendication 1,
    caractérisé en ce que
    l'on ajoute l'adjuvant de compression en quantités d'environ 8 à 12 % en poids, rapporté à 100 % du mélange total de granulés pour comprimés.
EP93919188A 1992-09-04 1993-08-26 Procede de production de comprimes de detergents Expired - Lifetime EP0658190B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4229650A DE4229650C1 (de) 1992-09-04 1992-09-04 Verfahren zur Herstellung von Reinigungstabletten
DE4229650 1992-09-04
PCT/EP1993/002307 WO1994005768A1 (fr) 1992-09-04 1993-08-26 Procede de production de comprimes de detergents

Publications (2)

Publication Number Publication Date
EP0658190A1 EP0658190A1 (fr) 1995-06-21
EP0658190B1 true EP0658190B1 (fr) 1997-04-02

Family

ID=6467285

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93919188A Expired - Lifetime EP0658190B1 (fr) 1992-09-04 1993-08-26 Procede de production de comprimes de detergents

Country Status (8)

Country Link
EP (1) EP0658190B1 (fr)
AT (1) ATE151106T1 (fr)
AU (1) AU4954293A (fr)
DE (2) DE4229650C1 (fr)
DK (1) DK0658190T3 (fr)
ES (1) ES2099466T3 (fr)
GR (1) GR3023565T3 (fr)
WO (1) WO1994005768A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1337619B2 (fr) † 2000-11-27 2013-06-19 The Procter & Gamble Company Detergents procedes

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TR28788A (tr) * 1993-05-25 1997-03-25 Henkel Ecolab Gmbh & Co Ohg Makinayla bulasik temizlemege mahsus usul ve tertibat.
DE19502774A1 (de) * 1995-01-27 1996-08-01 Henkel Kgaa Verfahren zur Herstellung von bruchstabilen Reinigungstabletten
JP2000500178A (ja) * 1995-11-13 2000-01-11 ユニリーバー・ナームローゼ・ベンノートシヤープ 固体洗剤ブロック
DE69630058T2 (de) * 1995-11-13 2004-04-08 JohnsonDiversey, Inc., Sturtevant Fester reinigungsmittelblock
WO2008094878A1 (fr) * 2007-02-01 2008-08-07 Johnsondiversey, Inc. Ensemble distributeur de détergent et procédé de distribution de détergent, poudres détergentes liquides et procédés de fabrication et d'utilisation de ceux-ci

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4409118A (en) * 1981-04-03 1983-10-11 Warner-Lambert Company Tablet forming cleanser composition and method of preparation
DE3315950A1 (de) * 1983-05-02 1984-11-15 Henkel KGaA, 4000 Düsseldorf Verfahren zur herstellung von reinigungsmitteltabletten
DE3541145A1 (de) * 1985-11-21 1987-05-27 Henkel Kgaa Einheitlich zusammengesetzte reinigungsmitteltabletten fuer das maschinelle geschirrspuelen
DE3634813A1 (de) * 1986-10-13 1988-04-14 Henkel Kgaa Reinigungsmitteltabletten fuer das maschinelle geschirrspuelen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1337619B2 (fr) † 2000-11-27 2013-06-19 The Procter & Gamble Company Detergents procedes

Also Published As

Publication number Publication date
ATE151106T1 (de) 1997-04-15
DK0658190T3 (da) 1997-08-25
ES2099466T3 (es) 1997-05-16
EP0658190A1 (fr) 1995-06-21
AU4954293A (en) 1994-03-29
DE4229650C1 (de) 1994-01-05
GR3023565T3 (en) 1997-08-29
DE59306052D1 (de) 1997-05-07
WO1994005768A1 (fr) 1994-03-17

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