WO1994013775A1 - Procede de fabrication de detergents pulverulents - Google Patents

Procede de fabrication de detergents pulverulents Download PDF

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Publication number
WO1994013775A1
WO1994013775A1 PCT/EP1993/003443 EP9303443W WO9413775A1 WO 1994013775 A1 WO1994013775 A1 WO 1994013775A1 EP 9303443 W EP9303443 W EP 9303443W WO 9413775 A1 WO9413775 A1 WO 9413775A1
Authority
WO
WIPO (PCT)
Prior art keywords
detergent
weight
polyvinylpyrrolidone
pvp
powdered
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.)
Ceased
Application number
PCT/EP1993/003443
Other languages
German (de)
English (en)
Inventor
Rainer Salz
Wolfgang Seiter
Klaus Faymonville
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
Priority to EP94902706A priority Critical patent/EP0674702A1/fr
Publication of WO1994013775A1 publication Critical patent/WO1994013775A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3769—(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines
    • C11D3/3776—Heterocyclic compounds, e.g. lactam
    • 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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/12—Water-insoluble compounds
    • C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
    • C11D3/1246—Silicates, e.g. diatomaceous earth
    • C11D3/128—Aluminium silicates, e.g. zeolites

Definitions

  • the present patent application relates to a process for the production of powder detergents containing polyvinyl pyrrolidone, by means of which the transfer of detached dyes during washing to other washed textiles is prevented.
  • discoloration-inhibiting detergents care must therefore be taken that at most small amounts of strong electrolytes and in particular only small amounts of anionic surfactants are used. To achieve a sufficient washing performance, nonionic surfactants are therefore preferably used in larger quantities as a detergent component.
  • Non-ionic surfactants have a liquid to pasty consistency at room temperature, so that when using larger amounts of non-ionic surfactants it is necessary to select the amount and type of these surfactants in such a way that the physical properties of the surfactants, in particular the flowability and flushing behavior of the pul ⁇ deformed detergents are not affected.
  • This is sometimes a problem in the formulation of powder detergents, which is exacerbated by the addition of polyvinylpyrrolidone in the detergents. It was observed, for example, that powder detergents which, without a content of polyvinylpyrrolidone, had free-flowing properties and a problem-free rinsing behavior, behaved poorly in this regard even after adding only small amounts of polyvinylpyrrolidone.
  • the object of the present invention was therefore to compensate for the disadvantage associated with the addition of polyvinylpyrrolidone in powder detergents of the deterioration in the flowability and the washing-in behavior by modifying the production process.
  • this object is achieved by adding all or part of the polyvinylpyrrolidone to the spray-dried detergent in a separate working step in the preparation of the detergent by the customary spray drying of an aqueous slurry containing the detergent constituents.
  • the present invention therefore relates to a process for the production of powdered detergents containing polyvinylpyrrolidone, which is characterized in that the polyvinylpyrrolidone is wholly or partly in the form of a separate mixture with other powdered detergent constituents, the powdered detergent which is the contains other detergent ingredients.
  • the procedure described makes it possible to add polyvinylpyrrolidone in an amount of detergents required for the discoloration inhibition without impairing their free-flowing properties or detergent retention.
  • the detergents to be produced according to the invention usually contain 10-30% by weight of surfactants, of which 5-10% by weight nonionic surfactants, 5-20% by weight of synthetic anionic surfactants and 1-5% by weight. of fatty acid soaps.
  • inorganic builder salts such as, for example, zeolite A, sodium carbonate, sodium sulfate, sodium silicate or sodium triphosphate
  • conventional detergent additives such as, for example, organic co-builders of the polycarboxylate type, carboxymethyl cellulose and water-soluble complexing agents , Anti-foaming agents, enzymes and fragrances.
  • the polyvinylpyrrolidone content is preferably 0.5-5% by weight of the detergent.
  • the separate mixture hereinafter called PVP concentrate, contains large amounts of PVP together with predominantly inorganic carrier components.
  • the PVP content in this PVP concentrate can be 10-50% by weight, preferably 20-40% by weight.
  • Such PVP concentrates preferably contain 20-40% by weight of polyvinylpyrrolidone in addition to 40-80% by weight of inorganic carrier salts and smaller amounts of water.
  • These separate, high PVP-containing mixtures are preferably also produced by spray drying an aqueous slurry. However, it can also be produced by other conventional granulation processes, for example by spray mixing or extrusion processes.
  • a further subject of the invention is therefore a pulverulent PVP concentrate containing PVP and inorganic carrier salts, which contains 20-40% by weight polyvinylpyrrolidone and 40-80% by weight inorganic carrier salts.
  • the inorganic carrier salts preferably consist entirely or predominantly of detergent builders, preferably of water-insoluble zeolite ion exchangers, in particular of the zeolite A type.
  • the PVP concentrate can also contain smaller amounts of surfactants and up to 20% by weight. % contain water.
  • Another object of the invention is a detergent consisting of two granular components of different compositions, the first granular component containing no polyvinylpyrrolidone or no more than an amount of up to 2.5% by weight of polyvinylpyrrolidone which is not harmful to the flow properties, and the second one granular component 10-50 wt .-% polyvinyl pyrrolidone and an inorganic carrier, preferably a detergent builder salt, contains.
  • Both the first granular component and the second, high PVP-containing component can be spray dried by appropriate slurry Ries or be produced by other known granulation. However, production by spray drying is preferred.
  • a slurry is prepared which either contains no polyvinylpyrrolidone or only a portion of the polyvinylpyrrolidone provided in the recipe which is not harmful to the flowability and other constituents of the recipe, and this slurry is sprayed in the customary manner, gel can dispense with part of the water of the slurries due to the lower content of solids.
  • the polyvinylpyrrolidone not contained in the slurry, together with the other inorganic detergent constituents also not contained in the slurry, is in turn processed into a second aqueous slurry and converted into a powdery state by spray drying.
  • the mixing ratio depends on the amount of polyvinylpyrrolidone already contained in the first granular component and the desired PVP content of the end product, which is 0.5-5% by weight, preferably 3-5% by weight. should be. At least half of the total PVP contained in the finished detergent is preferably added in the form of a separate mixture (PVP concentrate). However, it is even more preferred to add at least 75% by weight of the PVP to the detergent in the form of the PVP concentrate.
  • a preliminary detergent product was produced by spray drying, in which only a part of the total polyvinylpyrrolidone (PVP) provided in the recipe is contained. The remainder of the PVP is added in a mixing process in the form of a PVP-rich powder likewise produced by spray drying.
  • PVP polyvinylpyrrolidone
  • the preliminary detergent product contains:
  • the finished product thus obtained had a bulk density of 410 g per liter and a much better trickle behavior (according to the so-called "package test") and a significantly improved washing-in behavior (according to the so-called “washing-in test”) than one otherwise identical detergent, the entire proportion of PVP of which was contained in the detergent intermediate.
  • This finding is confirmed by a detergent which has the same composition, but in which the entire amount of PVP has been added to the detergent precursor in one mixing operation (Example V3).
  • a preliminary detergent product which did not contain any PVP was prepared by spray drying.
  • the "package test” is carried out as follows:
  • a standard detergent package which is filled with washing powder and opened, is tilted through a device by certain angles and the type and amount of powder discharge, if necessary after shaking the package with the marks 1 (very good flowability) to 10 (very poorly flowable) rated.
  • a commercially available washing machine dispenser which is particularly problematic with regard to its dispensing behavior, is charged with 100 g of detergent under defined filling conditions and flushed with a maximum of 10 liters of water. The amount of water in which the washing powder is completely rinsed out of the induction device or how large the detergent residue in the induction device is after the flow of 10 liters of water is then assessed.

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)

Abstract

Dans la production de détergents pulvérulents contenant de la polyvinylpyrrolidone, on ajoute la totalité ou une partie de la polyvinylpyrrolidone sous la forme d'un mélange séparé avec d'autres ingrédients détersifs pulvérulents, à un détergent pulvérulent contenant les ingrédients détersifs restants.
PCT/EP1993/003443 1992-12-16 1993-12-07 Procede de fabrication de detergents pulverulents Ceased WO1994013775A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP94902706A EP0674702A1 (fr) 1992-12-16 1993-12-07 Procede de fabrication de detergents pulverulents

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19924242482 DE4242482A1 (de) 1992-12-16 1992-12-16 Verfahren zur Herstellung von pulverförmigen Waschmitteln
DEP4242482.8 1992-12-16

Publications (1)

Publication Number Publication Date
WO1994013775A1 true WO1994013775A1 (fr) 1994-06-23

Family

ID=6475440

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1993/003443 Ceased WO1994013775A1 (fr) 1992-12-16 1993-12-07 Procede de fabrication de detergents pulverulents

Country Status (3)

Country Link
EP (1) EP0674702A1 (fr)
DE (1) DE4242482A1 (fr)
WO (1) WO1994013775A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0719856A1 (fr) * 1994-12-29 1996-07-03 The Procter & Gamble Company Compositions adoucissantes pour le lavage simultané du linge
EP0800570A4 (fr) * 1994-12-29 1998-01-28 Procter & Gamble Composition detergente de lessive contenant un agent polymere inhibiteur de la decoloration sensiblement insoluble dans l'eau
WO2000025906A1 (fr) * 1998-10-29 2000-05-11 Henkel Kommanditgesellschaft Auf Aktien Granules de polymere produits par granulation en lit fluidise

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0075818A2 (fr) * 1981-09-28 1983-04-06 BASF Aktiengesellschaft Activateur de blanchiment granulaire
EP0114308A1 (fr) * 1982-12-24 1984-08-01 Henkel Kommanditgesellschaft auf Aktien Agent de lavage ayant plusieurs composantes séché par pulvérisation
EP0327927A2 (fr) * 1988-02-06 1989-08-16 Henkel Kommanditgesellschaft auf Aktien Additif pour détergents
EP0421664A2 (fr) * 1989-10-02 1991-04-10 Rohm And Haas Company Granulés contenant des polymères

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0075818A2 (fr) * 1981-09-28 1983-04-06 BASF Aktiengesellschaft Activateur de blanchiment granulaire
EP0114308A1 (fr) * 1982-12-24 1984-08-01 Henkel Kommanditgesellschaft auf Aktien Agent de lavage ayant plusieurs composantes séché par pulvérisation
EP0327927A2 (fr) * 1988-02-06 1989-08-16 Henkel Kommanditgesellschaft auf Aktien Additif pour détergents
EP0421664A2 (fr) * 1989-10-02 1991-04-10 Rohm And Haas Company Granulés contenant des polymères

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0719856A1 (fr) * 1994-12-29 1996-07-03 The Procter & Gamble Company Compositions adoucissantes pour le lavage simultané du linge
EP0800570A4 (fr) * 1994-12-29 1998-01-28 Procter & Gamble Composition detergente de lessive contenant un agent polymere inhibiteur de la decoloration sensiblement insoluble dans l'eau
WO2000025906A1 (fr) * 1998-10-29 2000-05-11 Henkel Kommanditgesellschaft Auf Aktien Granules de polymere produits par granulation en lit fluidise
US6841614B1 (en) 1998-10-29 2005-01-11 Henkel Kommanditgesellschaft Auf Aktien Polymer granules produced by fluidized bed granulation

Also Published As

Publication number Publication date
DE4242482A1 (de) 1994-06-23
EP0674702A1 (fr) 1995-10-04

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