EP1232239B1 - Procede pour la production de detergents ou de nettoyants particulaires - Google Patents

Procede pour la production de detergents ou de nettoyants particulaires Download PDF

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Publication number
EP1232239B1
EP1232239B1 EP00979590A EP00979590A EP1232239B1 EP 1232239 B1 EP1232239 B1 EP 1232239B1 EP 00979590 A EP00979590 A EP 00979590A EP 00979590 A EP00979590 A EP 00979590A EP 1232239 B1 EP1232239 B1 EP 1232239B1
Authority
EP
European Patent Office
Prior art keywords
particle
alkali metal
component
acidic component
alkaline
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
EP00979590A
Other languages
German (de)
English (en)
Other versions
EP1232239A1 (fr
Inventor
Jürgen MILLHOFF
Peter Schmiedel
Wolfgang Von Rybinski
Ute Krupp
Thomas Otto Gassenmeier
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
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Publication date
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of EP1232239A1 publication Critical patent/EP1232239A1/fr
Application granted granted Critical
Publication of EP1232239B1 publication Critical patent/EP1232239B1/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
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0039—Coated compositions or coated components in the compositions, (micro)capsules
    • 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
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • 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
    • C11D3/39—Organic or inorganic per-compounds
    • C11D3/3942—Inorganic per-compounds

Definitions

  • the present invention relates to a process for the preparation of particulate detergents or cleaners.
  • Particulate detergents and cleaners usually consist of a variety of ingredients, which are usually incorporated into a plurality of particulate components in the entire agent because of mutual incompatibilities.
  • examples of such mutually incompatible ingredients are bleach and bleach activator, which are to react with each other under conditions of use in aqueous solution and then give a desired increased bleaching performance, but not allowed to react with each other during storage, since they are no longer available for the desired application stand.
  • a less striking example of the non-optimal interaction of individual ingredients of detergents and cleaners results from their pH-dependent performance.
  • anionic surfactants and builders for example, require an alkaline pH to fully develop their performance.
  • both dirt particles as well as most textile fibers form an increasing number of negative charges with increasing pH, which leads to increasing repulsion among them and is therefore beneficial to the desired washing result.
  • textile washing has been carried out with more or less alkaline wash liquors since ancient times. The same applies analogously to aqueous solutions for cleaning hard surfaces, for example in the context of machine cleaning methods for dishes.
  • Detergent ingredient is understood to mean a substance whose addition to water, which has a pH of 7, leads to an acidic or alkaline pH.
  • mp is the total mass of the particles to be treated and r is their mean particle radius.
  • a particle to be treated according to the invention may optionally contain all ingredients of a detergent or cleaning agent, ie it is possible with the method according to the invention to coat a finished washing or cleaning agent.
  • a detergent or cleaning agent ie it is possible with the method according to the invention to coat a finished washing or cleaning agent.
  • Such alkaline ingredients are preferably alkali silicates, alkali aluminosilicates, alkali phosphates, alkali carbonates, alkali metal perborates and alkali percarbonates, and mixtures thereof, with sodium being the preferred alkali metal.
  • liquid or pasty acidic component preference is given to applying the liquid or pasty acidic component, optionally in molten form, in a mixer or granulator to the optionally heated particles consisting at least proportionally of an alkaline detergent or cleaning agent ingredient.
  • Particularly good coatings are achieved by applying the acidic component to the particle over a period of 5 minutes to 20 minutes.
  • the inventive method is, presumably - without this theory To be bound by the neutralization reaction of the acidic coating material with the alkaline particle on its surface and to a certain extent under its surface, a particularly dense and comparatively little or slowly water-soluble coating marafffen having a reliable tightness after entry into an aqueous system and thus enables the production of detergents and cleaners with a step-shaped pH profile.
  • the particles obtainable according to the invention contain in their core almost exclusively the constituents of the particle originally used. This core is surrounded by a layer in which increasingly higher concentrations of acidic coating material or its salt formed with the alkaline component occur from the inside to the outside, wherein the outer surface can be formed entirely of acidic coating material.
  • Components of the particle of alkaline material, in addition to the alkali component may be all customary with this compatible ingredients of detergents and cleaners, as long as they are solid or ready to confection.
  • these include, in particular, other builders, surface-active surfactants, other peroxygen compounds, peroxygen activators, sequestering agents, electrolytes and other auxiliaries, such as dye transfer inhibitors, silver corrosion inhibitors, foam regulators and dyes and perfumes, wherein the presence of peroxygen activators in the particle of alkaline material less preferred is when this particle also contains peroxygen compound.
  • the particles produced by the process according to the invention are, preferably after mixing with at least one further particulate component, as Detergents or cleaning agents used, which may be agents for manual or machine washing or cleaning in particular.
  • the at least one further component contains at least one active ingredient whose washing or cleaning action at a lower pH than that resulting from the dissolution of the alkali component contained in the particles produced by the method according to the invention is higher than at the pH at dissolution of said particle.
  • this active ingredient is selected from enzymes or Enzytrmnischenoder, wherein in the case of the mixtures, the individual active ingredients may also be contained in a plurality of different composite particulate components.
  • the at least one further component of such a solubility that it releases as much of the active substance contained in it under the initially lower pH conditions, but essentially only after pH increase by the then higher alkalinity of him surrounding aqueous Systms unfolds its full effect, or otherwise reacts with the then liberated alkali component.
  • An example of the last-mentioned variant is a bleach activator which is soluble or formulated in a lower pH and which reacts with a bleaching agent released from the coated particle according to the invention and which, by being already dissolved, can rapidly develop a strong bleaching action.
  • 1 kg spheronized sodium percarbonate having an average particle diameter of 400 microns were premixed with 25 g of stearic acid (dandruff) in a cold state. This premix was placed in a commercial ploughshare mixer with stud shovel preheated to 90 ° C (jacket temperature). At speed level 2 and a measured product temperature of 80 ° C was compounded reactive for 20 min. The hot product was removed and can be used after cooling in the usual way, for example for the production of detergents or cleaners.
  • Each 100 g of spheronized sodium percarbonate having an average particle diameter of 1400 microns were added in a beaker with 2.5 g or 1.5 g of stearic acid and heated to a product temperature of about 80 ° C with stirring. After the molten stearic acid had been absorbed into the alkaline particles, the mixture was further reactive compounded at about 80 ° C. for a further 20 minutes.
  • Fig. 1 the pH curve is reproduced after incorporation into water of the product prepared by application of 1.5 g of stearic acid.
  • Fig. 1 also contains the pH curve of the uncoated percarbonate.

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  • 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)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)

Claims (8)

  1. Procédé pour la préparation d'agents de lavage ou de nettoyage sous forme de particules, ou de précurseurs appropriés pour leur préparation, par application d'un composant acide pouvant s'écouler, choisi parmi les acides monocarboxyliques ou dicarboxyliques comprenant 10 à 22 atomes de carbone, les esters monoalkyliques ou monoalcényliques de l'acide sulfurique comprenant 10 à 20 atomes de carbone, les acides alkylsulfoniques, alcénylsulfoniques ou alkylarylsulfoniques comprenant 10 à 20 atomes de carbone, les poly(acides carboxyliques) polymères, qui sont accessibles par polymérisation d'acides monocarboxyliques et/ou dicarboxyliques éthyléniquement insaturés, tels que l'acide acrylique, l'acide méthacrylique et/ou l'acide maléique, et leurs mélanges, sur une particule constituée au moins en partie par un constituant alcalin d'un agent de lavage ou de nettoyage, la proportion de composant acide appliqué en fonction du rayon étant régie par la formule mc/(mc+mp) = c * 1/r, dans laquelle mc représente la masse de composant acide, mp la masse de la particule, r le rayon de la particule en µm et c un facteur de 0,5 µm à 20 µm.
  2. Procédé selon la revendication 1, caractérisé en ce que la particule constituée au moins en partie par un constituant alcalin d'un agent de lavage ou de nettoyage présente un rayon r dans la plage de 100 µm à 1000 µm.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que c est un facteur de 5 µm à 10 µm.
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le composant acide est solide à température ambiante et on réalise l'application du composant acide pouvant s'écouler à une température de procédé supérieure à la température ambiante.
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'on applique le composant acide en un laps de temps de 5 minutes à 20 minutes sur la particule.
  6. Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le constituant alcalin de l'agent de lavage ou de nettoyage est choisi parmi les silicates de métal alcalin, les aluminosilicates de métal alcalin, les phosphates de métal alcalin, les carbonates de métal alcalin, les perborates de métal alcalin et les percarbonates de métal alcalin, ainsi que leurs mélanges.
  7. Utilisation du précurseur préparé selon le procédé selon l'une quelconque des revendications 1 à 6, après mélange avec au moins un autre composant sous forme de particules comme agent de lavage ou de nettoyage.
  8. Utilisation selon la revendication 7, caractérisée en ce que ledit au moins un autre composant contient au moins une substance active, dont l'effet de lavage resp. de nettoyage à un pH plus bas que celui obtenu lors de la dissolution du composant alcalin contenu dans les particules préparées selon le procédé selon l'une quelconque des revendications 1 à 6, est supérieur qu'au pH lors de la dissolution de la particule mentionnée.
EP00979590A 1999-11-26 2000-11-17 Procede pour la production de detergents ou de nettoyants particulaires Expired - Lifetime EP1232239B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19957036A DE19957036A1 (de) 1999-11-26 1999-11-26 Verfahren zur Herstellung teilchenförmiger Wasch- oder Reinigungsmittel
DE19957036 1999-11-26
PCT/EP2000/011425 WO2001038477A1 (fr) 1999-11-26 2000-11-17 Procede pour la production de detergents ou de nettoyants particulaires

Publications (2)

Publication Number Publication Date
EP1232239A1 EP1232239A1 (fr) 2002-08-21
EP1232239B1 true EP1232239B1 (fr) 2006-02-01

Family

ID=7930482

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00979590A Expired - Lifetime EP1232239B1 (fr) 1999-11-26 2000-11-17 Procede pour la production de detergents ou de nettoyants particulaires

Country Status (8)

Country Link
US (1) US7064099B1 (fr)
EP (1) EP1232239B1 (fr)
JP (1) JP5036113B2 (fr)
AU (1) AU1702501A (fr)
CA (1) CA2326940A1 (fr)
DE (2) DE19957036A1 (fr)
ES (1) ES2255518T3 (fr)
WO (1) WO2001038477A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10136211B4 (de) * 2001-07-25 2007-05-24 Henkel Kgaa Verfahren zur Herstellung teilchenförmiger Wasch-oder Reinigungsmittel
DE102006028750A1 (de) * 2006-06-20 2007-12-27 Henkel Kgaa Reinigungsverfahren
US20090165821A1 (en) * 2005-09-02 2009-07-02 Henkel Kgaa Detergents
US20090239778A1 (en) * 2005-09-02 2009-09-24 Henkel Kgaa Cleaning Agent
DE102005041708A1 (de) 2005-09-02 2007-03-08 Henkel Kgaa Reinigungsmittel
DE102005041709A1 (de) * 2005-09-02 2007-03-08 Henkel Kgaa Reinigungsmittel
EP1977064A1 (fr) * 2005-09-06 2008-10-08 Aero Project Consultants Pty Ltd Dispositif de sécurité de bagages

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DE2318930A1 (de) * 1972-04-17 1973-10-31 Procter & Gamble Enzym enthaltende detergenzgemische
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CH639416A5 (de) * 1977-06-27 1983-11-15 Akzo Nv Detergentienzusammensetzung enthaltend alkalicarbonat.
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Also Published As

Publication number Publication date
DE50012170D1 (de) 2006-04-13
CA2326940A1 (fr) 2001-05-26
JP2003514982A (ja) 2003-04-22
US7064099B1 (en) 2006-06-20
ES2255518T3 (es) 2006-07-01
AU1702501A (en) 2001-06-04
EP1232239A1 (fr) 2002-08-21
JP5036113B2 (ja) 2012-09-26
DE19957036A1 (de) 2001-05-31
WO2001038477A1 (fr) 2001-05-31

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