EP1141212B1 - Produit de lavage sous forme de pate - Google Patents

Produit de lavage sous forme de pate Download PDF

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Publication number
EP1141212B1
EP1141212B1 EP99965439A EP99965439A EP1141212B1 EP 1141212 B1 EP1141212 B1 EP 1141212B1 EP 99965439 A EP99965439 A EP 99965439A EP 99965439 A EP99965439 A EP 99965439A EP 1141212 B1 EP1141212 B1 EP 1141212B1
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EP
European Patent Office
Prior art keywords
detergent according
detergent
fatty acid
weight
pasty
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EP99965439A
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German (de)
English (en)
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EP1141212A1 (fr
Inventor
Khalil Shamayeli
Thomas Merz
Edgar Köppelmann
Heinrich Peter Furitsch
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Ecolab Inc
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Ecolab Inc
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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
    • C11D3/48—Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial compositions
    • 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
    • C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
    • C11D17/003—Colloidal solutions, e.g. gels; Thixotropic solutions or pastes
    • 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
    • C11D3/2086—Hydroxy 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
    • C11D3/3947—Liquid compositions
    • 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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/04—Carboxylic acids or 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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/72—Ethers of polyoxyalkylene glycols

Definitions

  • the present invention relates to paste detergents for use in commercial laundry, a process for producing such compositions, and a disinfecting laundry process in commercial laundry.
  • Detergents used in the household are tailored to the needs that occur there; they are usually powdery or sufficiently liquid to be easily poured out and dosed. Since such liquid detergents are to be storage-stable within relatively wide temperature ranges, additions of organic solvents and / or hydrotropes are frequently added, but these themselves do not contribute to the washing or cleaning result and are undesirable for this reason.
  • One way to circumvent any dosing problems with insufficiently liquid agents is in the European patent application EP 253 151 A2 proposed.
  • pasty detergent consists of a liquid in the temperature range below 10 ° C phase, which is formed from nonionic surfactant, and dispersed therein a solid phase of certain grain size, which is formed from wash alkalis, sequestering agents and optionally anionic surfactants.
  • the pour point solidification point
  • This detergent paste is intended for commercial laundries and is so flowable that it can be conveyed via a suction line by means of a conventional feed pump.
  • Another paste-form detergent containing 40 to 70 wt .-% at room temperature, ethoxylated fatty alcohol having 10 to 20 carbon atoms and a moderate degree of ethoxylation of 1 to 8 and 20 to 50 wt .-% liquid at room temperature ethoxylated and propoxylated fatty alcohol as a nonionic surfactant Contains 10 to 20 carbon atoms and a mean degree of ethoxylation of 2 to 8 and an average degree of propoxylation of 1 to 6 and 1 to 10 wt .-% soap, is described in the international patent application WO 95/09229 described.
  • This paste-like detergent or cleaning agent is so pseudoplastic that it is not flowable at room temperature under the action of gravity, but has a significantly lower viscosity in shear and then flow under the action of gravity.
  • the dosage of this paste-like detergent or cleaner is preferably carried out by subjecting the shear-reducing agent to shear, and then metering the flowable agent by means of feed pumps.
  • a paste-type detergent for use in commercial laundry is known, the nonionic surfactant, organic and / or inorganic builder, alkalizing, and optionally bleach, enzyme, graying inhibiting polymer and / or other conventional ingredients and is characterized in that it contains 5 wt .-% to 30 wt .-% of an ethoxylated alcohol of the general formula R 1 - (OC 2 H 4 ) m -OH (I) in which R 1 is an alkyl or alkenyl radical having 9 to 15 carbon atoms and the mean degree of ethoxylation m can assume values of 1 to 8, 1 wt .-% to 20 wt .-% of an ethoxylated alcohol of the general formula R 2 - (OC 2 H 4 ) n -OH (II), in the R 2 is an alkyl or alkenyl radical having 12 to 22 carbon atoms and the average degree of ethoxylation n can assume
  • the agents known from the above-mentioned documents have a high cleaning performance and are very well suited for commercial washing of soiled laundry. If incurred with possibly even pathogenic microorganisms scrubbed laundry, but they can not meet the demand for a simultaneous disinfection, so that in their use, the additional use of disinfecting agents is necessary.
  • the present invention which is intended to remedy this need, is a paste-type laundry detergent for use in commercial laundry, according to claim 1.
  • Another object of the invention is a method for washing and disinfecting laundry in commercial laundry, using a corresponding pasty agent. It is preferably used in the 60 ° C wash program, ie at a washing temperature of about 60 ° C, used.
  • the liquid phase of the pasty agent according to the invention is essentially formed by nonionic surfactants.
  • An agent according to the invention contains from 32% by weight to 55% by weight, in particular from 35% by weight to 50% by weight.
  • nonionic surfactant in the form of one or more ethoxylated and / or propoxylated alcohols, preferably those which correspond to the abovementioned formulas I or II. Particularly preferred is the use of mixtures of these.
  • the viscosity of the agent according to the invention can be adjusted by the combination of ethoxylated alcohols of the formulas I and II.
  • the radicals R 1 , R 2 and R 5 may be linear or branched, for example methyl-branched in the 2-position, linear radicals having primary etherified alcohol functions being preferred.
  • the nonionic surfactant according to formula I preferably has a carbon chain length of 8 to 14, in particular 12 to 14 carbon atoms and a mean degree of ethoxylation m of 1 to 8, in particular 1 to 5.
  • the nonionic surfactant according to formula II has a broader carbon chain length distribution towards longer chains having 12 to 22, in particular 12 to 18 and particularly preferably 16 to 18 carbon atoms and a higher average degree of ethoxylation n of 3 to 14, in particular 6 to 12.
  • the ethoxylated alcohols of the formula I and the ethoxylated alcohols of the formula II are preferably present in weight ratios of from 2: 1 to 1: 1.8.
  • the composition according to the invention may comprise further nonionic surfactants commonly used in detergents and cleaners, for example alkylpolyglycosides and / or fatty acid polyhydroxyamides.
  • the surfactant component is preferably free of exclusively propoxylated alcohols.
  • R 4 is preferably a methyl, ethyl, propyl or butyl group, with hydrogen and the methyl group, in particular hydrogen, being particularly preferred.
  • the compositions contain up to 15% by weight, preferably 2% by weight to 10% by weight, of substances according to general formula III.
  • Fatty acids or their alkali metal salts the so-called soaps, or mixtures of fatty acids and soaps are preferably present in compositions according to the invention in amounts of from 0.75% by weight to 2.5% by weight, in particular from 1% by weight to 2% by weight. -%, contain.
  • Suitable soaps are in particular the alkali metal salts of saturated and / or unsaturated C 12 come -18 fatty acids, for example coconut, palm kernel or tallow fatty acid in question, the corresponding acids can be used as such.
  • an optionally saponified carboxylic acid mixture in each case based on the total carboxylic acid mixture, 2 wt .-% to 8 wt .-% C 14 -, up to 1 wt .-% C 15 -, 18 wt .-% to 24 Wt% C 16 -, up to 3 wt% C 17 -, 20 wt% - 42 wt% C 18 - and 30 wt% - 44 wt% C 20-22 - carboxylic acid.
  • the weight ratio of fatty acid to fatty acid alkali salt is preferably in the range of 1:99 to 50:50, more preferably 5:95 to 25:75.
  • the agent may optionally be up to 10 wt .-%, preferably up to 5 wt .-% and in particular 0.5 wt .-% to 3 wt .-% of synthetic anionic surfactants, in particular selected from the alkylbenzylsulfonates, alkyl or Alkenyl sulfates and / or ether sulfates.
  • synthetic anionic surfactants which may preferably be incorporated into the composition according to the invention in solid, finely divided, substantially anhydrous form include in particular those of the sulphonate or sulphate type which are normally present as alkali metal salts, preferably as sodium salts.
  • the said surfactants of the sulfonate type can also be used in the form of their free acids.
  • Suitable anionic surfactants of the sulfonate type are, in addition to the C 9-13 -alkylbenzenesulfonates, linear alkanesulfonates with 11 to 15 C atoms, as obtainable by sulfochlorination or sulfoxidation of alkanes and subsequent saponification or neutralization, Salts of sulfo fatty acids and their esters derived from saturated in particular ⁇ -position saturated C 12 - to C 18 fatty acids and lower alcohols such as methanol, ethanol and propanol, and Olefinsulfonate, as for example by sulfonation of terminal C 12 - to form C 18 olefins and subsequent alkaline hydrolysis.
  • Suitable surfactants of the sulfate type are in particular the primary alkyl sulfates with preferably linear alkyl radicals having 10 to 20 C atoms, which have an alkali, ammonium or alkyl or hydroxyalkyl-substituted ammonium ion as a counter cation.
  • Particularly suitable are the derivatives of linear alcohols having in particular 12 to 18 carbon atoms and their branched-chain analogs, the so-called oxo alcohols. Accordingly, in particular the sulfation products of primary fatty alcohols with linear dodecyl, tetradecyl or octadecyl radicals and mixtures thereof are useful.
  • alkyl sulfates contain a tallow alkyl radical, that is to say mixtures having essentially hexadecyl and octadecyl radicals.
  • the alkyl sulfates can be prepared in a known manner by reaction of the corresponding alcohol component with a conventional sulfating reagent, in particular sulfur trioxide or chlorosulfonic acid, and subsequent neutralization with alkali metal, ammonium or alkyl or hydroxyalkyl-substituted ammonium bases.
  • ether sulfates may be included in the compositions.
  • Such ether sulfates preferably contain 2 to 30, in particular 4 to 10, ethylene glycol groups per molecule.
  • the solid phase of the composition according to the invention is essentially formed by the alkalizing agents, the inorganic peroxygen compounds and the builders, it being possible for further particulate auxiliaries to be present if appropriate.
  • the solid phase should be dispersed as homogeneously as possible in the liquid surfactant phase.
  • the components of the pasty agent contained as a solid phase should be finely divided and have a mean particle size in the range of 5 microns to 200 microns, with at most 15% of the particles have a particle size of more than 200 microns.
  • relatively coarse-grained solids for example those containing 20% to 50% of particles with particle sizes greater than 100 ⁇ m, into the pasty compositions without any disadvantage.
  • the mean particle size of the particles forming the solid phase is 10 ⁇ m to 80 ⁇ m and in particular 10 ⁇ m to 60 ⁇ m, the maximum particle size being less than 300 ⁇ m, in particular less than 250 ⁇ m.
  • 90% by weight of the solid powdery constituents are smaller than 200 ⁇ m, in particular smaller than 150 ⁇ m.
  • the average particle size can be determined by known methods (for example by means of laser diffraction or Coulter Counter).
  • the alkalizing agents contained as another component are often referred to as Waschalkalien. They are predominantly assigned to the fixed phase. Under conditions of use, they provide for a pH in the alkaline range, which is normally in the range from 9.5 to 11.5, in particular from 10 to 11 (measured in 1% by weight solution of the agent in ion-exchanged water).
  • Preferred alkalizing agent is alkali metal carbonate, which may optionally also be used in admixture with alkali metal bicarbonate.
  • Alkali metal silicates as strong alkalizing agents are not included in the pasty compositions of the invention.
  • the proportion of agents in alkalizing agents is generally from 20% by weight to 80% by weight, preferably from 30% by weight to 70% by weight and in particular from 40% by weight to 60% by weight.
  • pasty agents according to the invention may optionally also contain polymeric alkali metal phosphates, such as sodium tripolyphosphate.
  • Their proportion is preferably up to 70 wt .-%, in particular 15 wt .-% to 40 wt .-%, based on the total agent, wherein the proportion of other solids, for example, the alkali metal carbonate and / or aluminosilicate, if appropriate, accordingly can be reduced.
  • these agents contain from 5% by weight to 15% by weight, in particular from 6% by weight to 10% by weight, of alkali metal carbonate and / or alkali metal bicarbonate.
  • an agent according to the invention contains citric acid, alkali citrate or mixtures thereof.
  • other monomeric polycarboxylic acids or hydroxycarboxylic acids such as gluconic acid or salts thereof and customary co-builders or complexing agents from the class of aminopolycarboxylic acids and polyphosphonic acids are suitable.
  • aminopolycarboxylic acids include nitrilotriacetic acid, ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid and their higher homologues, with N, N-bis (carboxymethyl) aspartic acid being preferably used.
  • Suitable polyphosphonic acids are 1-hydroxyethane-1,1-diphosphonic acid, aminotri (methylenephosphonic acid), ethylenediaminetetra (methylenephosphonic acid) and their higher homologs, such as diethylenetetramine tetra (methylenephosphonic acid).
  • the abovementioned acids are usually used in the form of their alkali metal salts, in particular the sodium or potassium salts.
  • the builders which can also be used include homopolymeric and / or copolymeric carboxylic acids or their alkali metal salts, the sodium or potassium salts being particularly preferred here as well.
  • polymeric carboxylates or polymeric carboxylic acids having a molecular weight of at least 350 in the form of their water-soluble salts, in particular in the form of sodium and / or potassium salts, as oxidized polysaccharides according to the international patent application WO 93/08251 .
  • Polyacrylates, polymethacrylates, polymaleinates and in particular copolymers of acrylic acid with maleic acid or maleic anhydride, preferably those of 50 to 70% of acrylic acid and 50 to 10% of maleic acid, as described, for example, in European Pat EP 022 551 are characterized.
  • the molecular weight of the homopolymers is generally between 1000 and 100,000, that of the copolymers between 2000 and 200,000, preferably 50,000 to 120,000, based on the free acid.
  • a particularly preferred acrylic acid-maleic acid copolymer has a molecular weight of 50,000 to 100,000.
  • Suitable, although less preferred, compounds of this class are copolymers of acrylic or methacrylic acid with vinyl ethers, such as vinylmethyl ethers, vinyl esters, ethylene, propylene and styrene, in which the acid content is at least 50% by weight.
  • the first acidic monomer or its salt is derived from a monoethylenically unsaturated C 3 -C 8 -carboxylic acid and preferably from a C 3 -C 4 -monocarboxylic acid, in particular from (meth) -acrylic acid.
  • the second acidic monomer or its salt may be a derivative of a C 4 -C 8 -dicarboxylic acid, with maleic acid being particularly preferred and / or a derivative of an allylsulfonic acid substituted in the 2-position with an alkyl or aryl radical.
  • Such polymers can be prepared in particular by methods which are described in the German patent DE 42 21 381 and the German patent application DE 43 00 772 are generally described, and generally have a molecular weight between 1,000 and 200,000.
  • Other preferred copolymers are those described in the German patent applications DE 43 03 320 and DE 44 17 734 be described and as monomers preferably acrolein and acrylic acid / acrylic acid salts or vinyl acetate.
  • Polyacetalcarboxylic acids as used, for example, in US Pat US Pat. No. 4,144,226 and US 4,146,495 are obtained by polymerization of esters of glycolic acid, introduction of stable terminal end groups and saponification to the sodium or potassium salts.
  • polymeric acids which are obtained by polymerization of acrolein and disproportionation of the polymer to Canizzaro by means of strong alkalis. They are composed essentially of acrylic acid units and vinyl alcohol units or acrolein units.
  • a Mitttel invention preferably contains 8 wt .-% to 12.5 wt .-% citrate and / or citric acid. In addition to citrate and / or citric acid, it preferably contains from 2% by weight to 12% by weight, in particular from 5% by weight to 10% by weight, of further organic builder in the form of polymeric polycarboxylate.
  • Suitable inorganic builders for use in compositions according to the invention are, in addition to the abovementioned phosphate, crystalline alkali metal silicates and finely divided alkali metal aluminosilicates, in particular zeolites of the NaA, X and / or P type.
  • Suitable zeolites normally have a calcium binding capacity in the range of 100 to 200 mg CaO / g, which is as described in US Pat German patent DE 24 12 837 can be determined.
  • Their particle size is usually in the range of 1 .mu.m to 10 .mu.m. They are used in dry form. The water contained in bound form in the zeolites does not interfere in the present case.
  • Crystalline silicates which may be present alone or in a mixture with the said aluminosilicates are preferably crystalline phyllosilicates of the formula NaMSi x O 2 + x.yH 2 O in which M is hydrogen or sodium, x is a number of 1.9 to 4 and y is a number from 0 to 20. Preferred values for x are 2, 3 and 4.
  • Such crystalline sheet silicates are For example, in the European patent application EP 164 514 described.
  • both ⁇ - and ⁇ -sodium disilicates Na 2 Si 2 O 5 ⁇ yH 2 O are preferred, wherein ⁇ -sodium disilicate can be obtained, for example, by the process described in International Patent Application WO 91/08171 is described.
  • Useful crystalline silicates are commercially available under the names SKS-6 (manufacturer Hoechst) and Nabion® 15 (manufacturer Rhone-Poulenc).
  • the content of such inorganic builder material in the paste may be up to 35% by weight, preferably up to 25% by weight and especially 10% by weight to 25% by weight.
  • a paste-form agent according to the invention contains oxygen-containing oxidizing agent in the form of inorganic peroxygen compounds, which are preferably selected from the group consisting of alkali metal perborate, alkali metal percarbonate and mixtures thereof and wherein sodium perborate tetrahydrate and sodium perborate monohydrate are particularly important in addition to sodium percarbonate.
  • oxygen-containing oxidizing agent inorganic peroxygen compounds, which are preferably selected from the group consisting of alkali metal perborate, alkali metal percarbonate and mixtures thereof and wherein sodium perborate tetrahydrate and sodium perborate monohydrate are particularly important in addition to sodium percarbonate.
  • suitable oxidizing agents are, for example, persulfates and peroxypyrophosphates.
  • Inorganic peroxygen compounds may preferably be present in agents according to the invention in amounts of from 20% by weight to 30% by weight, in particular from 22.5% by weight to 27.5% by weight.
  • an agent according to the invention may contain further washing auxiliaries, which may normally be present in amounts of up to about 15% by weight, based on the finished composition.
  • Enzymes, grayness inhibitors, soil release agents, dye transfer inhibitors such as homopolymers and / or copolymers of vinylpyrrolidone and / or vinylimidazole, optical brighteners, foam regulators and / or dyes and fragrances can be used as such washing aids, for example.
  • fragrances which are generally liquid, they go into the liquid phase of the invention means. Due to their small amount, however, they have no significant influence on the flow behavior of the pastes.
  • the paste detergent according to the invention are preferably substantially free from water.
  • essentially free of water is meant a state in which the content of free water, that is not in the form of water of hydration and water of constitution, is up to 5% by weight, preferably below 3% by weight. It is noteworthy that, despite the presence of the pers oxygen-containing bleach certainly higher water contents than conventional pasty substantially anhydrous detergents are possible.
  • Organic solvents which include the low molecular weight and low boiling alcohols and ether alcohols commonly used in liquid concentrates, as well as hydrotropic compounds may optionally be included in amounts up to 6 wt .-%, but are preferably not present.
  • Suitable enzymes in the compositions according to the invention are, in particular, those from the class of proteases, lipases, cutinases, amylases, pullulanases, xylanases, hemicellulases, cellulases, peroxidases and oxidases or mixtures thereof, the use of protease, amylase, lipase and / or cellulase is particularly preferred.
  • the proportion is preferably 0.2 wt .-% to 1.5 wt .-%, in particular 0.5 wt .-% to 1 wt .-%.
  • the enzymes can be adsorbed in a customary manner to carriers and / or be embedded in encasing substances or incorporated into the pastes as concentrated, preferably anhydrous liquid formulations.
  • Useful proteases are, for example, from international patent applications WO 91/02792 . WO 92/21760 . WO 93/05134 . WO 93/07276 . WO 93/18140 . WO 93/24623 . WO 94/02618 . WO 94/23053 . WO 94/25579 . WO 94/25583 .
  • WO 95/02044 .
  • WO 95/05477 WO 95/07350 .
  • WO 95/10592 are examples of the enzymes inorganic acid formulations.
  • WO 95/10615 WO 95/20039 .
  • WO 95/20663 WO 95/23211 .
  • WO 95/27049 WO 95/30010 .
  • WO 95/30011 WO 95/30743 and WO 95/34627 known.
  • Enzymes stabilized against oxidative damage for example the proteases or amylases known under the trade names Durazym® or Purafect® OxP or Duramyl® or Purafect® OxAm, are preferably used.
  • Suitable gravel inhibitors or soil release agents are cellulose ethers, such as carboxymethylcellulose, methylcellulose, hydroxyalkylcelluloses and cellulose mixed ethers, such as methylhydroxyethylcellulose, methylhydroxypropylcellulose and methylcarboxymethylcellulose.
  • cellulose ethers such as carboxymethylcellulose, methylcellulose, hydroxyalkylcelluloses and cellulose mixed ethers, such as methylhydroxyethylcellulose, methylhydroxypropylcellulose and methylcarboxymethylcellulose.
  • sodium carboxymethylcellulose and their mixtures are used with methylcellulose.
  • Commonly used soil release agents include copolyesters containing dicarboxylic acid units, alkylene glycol units and polyalkylene glycol units. Dirt-releasing copolyesters of the type mentioned as well as their use in detergents have been known for a long time.
  • German patent application DE 16 17 141 a washing process using polyethylene terephthalate-polyoxyethylene glycol copolymers.
  • the German patent application DE 22 00 911 relates to detergents containing nonionic surfactant and a copolymer of polyoxyethylene glycol and polyethylene terephthalate.
  • acidic textile finishing agents containing a copolymer of a dibasic carboxylic acid and an alkylene or cycloalkylene polyglycol and optionally an alkylene or cycloalkylene glycol.
  • the European patent EP 066 944 relates to textile treatment compositions containing a copolyester of ethylene glycol, polyethylene glycol, aromatic dicarboxylic acid and sulfonated aromatic dicarboxylic acid in certain molar ratios.
  • a copolyester of ethylene glycol, polyethylene glycol, aromatic dicarboxylic acid and sulfonated aromatic dicarboxylic acid in certain molar ratios From the European patent EP 185 427 For example, methyl or ethyl group-end capped polyesters having ethylene and / or propylene terephthalate and polyethylene oxide terephthalate units and detergents containing such soil release polymer are known.
  • the European patent EP 241 984 relates to a polyester which in addition to oxyethylene groups and terephthalic acid units also contains substituted ethylene units and glycerol units.
  • the proportion of grayness inhibitors and / or soil-release active ingredients in compositions according to the invention is generally not more than
  • Suitable color transfer inhibitors for use in compositions according to the invention include in particular polyvinylpyrrolidones, polyvinylimidazoles, polymeric N-oxides such as poly (vinylpyridine-N-oxide) and copolymers of vinylpyrrolidone with vinylimidazole, and mixtures thereof.
  • the proportion of color transfer inhibitors in compositions according to the invention is preferably 0.1% by weight to 2% by weight, in particular 0.2% by weight to 1% by weight.
  • optical brightener for particular textiles made of cellulose fibers (for example, cotton), for example, derivatives of diaminostilbene disulfonic acid or their alkali metal salts.
  • diaminostilbene disulfonic acid for example, salts of 4,4'-bis (2-anilino-4-morpholino-1,3,5-triazin-6-yl-amino) -stilbene-2,2'-disulphonic acid or similarly constructed compounds which are suitable instead of the morpholino group, carry a diethanolamino group, a methylamino group or a 2-methoxyethylamino group.
  • brighteners of the type optionally substituted dibenzofuranylbiphenyl or optionally substituted 4,4'-distyryldiphenyl may be present, for example, 4,4'-bis (4-chloro-3-sulfostyryl) -diphenyl.
  • mixtures of brighteners can be used.
  • brighteners of the 1,3-diaryl-2-pyrazolines type for example 1- (p-sulfamoylphenyl) -3- (p-chlorophenyl) -2-pyrazoline, and compounds of similar construction are particularly suitable.
  • the content of the composition in optical brighteners or brightener mixtures is generally not more than 1 wt .-%, preferably 0.05 wt .-% to 0.5 wt .-%.
  • the customary foam regulators which can be used in the compositions according to the invention include, for example, polysiloxane-silica mixtures, the finely divided silica contained therein preferably being silanated.
  • the polysiloxanes can consist of both linear compounds as well as crosslinked polysiloxane resins and mixtures thereof.
  • Further antifoams are paraffin hydrocarbons, in particular microparaffins and paraffin waxes whose melting point is above 40 ° C., saturated fatty acids or soaps having in particular 20 to 22 carbon atoms, for example sodium behenate, and alkali metal salts of phosphoric mono- and / or dialkyl esters in which the alkyl chains each having 12 to 22 carbon atoms.
  • the proportion of foam regulators may preferably be from 0.2% by weight to 2% by weight. In many cases, the additional use of defoaming agents can be completely dispensed with.
  • Dehydrating agents for example in the form of water-crystal-binding salts such as anhydrous sodium acetate, calcium sulfate, calcium chloride, sodium hydroxide, magnesium silicate, or metal oxides such as CaO, MgO, P 4 O 10 or Al may also be used to increase the physical stability and chemical stability of the optionally present enzymes 2 O 3 , are used.
  • Such dehydrating agents with which the water content of inventive agents can be reduced to particularly low levels if desired, are present in amounts of preferably 1 wt .-% to 10 wt.% And in particular 2 wt.% To 8 wt.% In the compositions according to the invention.
  • nonionic surfactant or nonionic surfactants preference is given to initially introducing the nonionic surfactant or nonionic surfactants, optionally admixing the alcohol or ether of formula III with the mixture of fatty acid alkali metal salt and fatty acid and optionally the foam regulator and the synthetic anionic Surfactant mixed into a homogeneous premix.
  • a premix is largely storage-stable and flowable at temperatures ranging from room temperature to 40 ° C, even if at these temperatures, the components of the premix are not always completely liquid or dissolved.
  • the powdery ingredients including the citric acid / citrate of the pasting agent are mixed, which are dispersed in particular by stirring in the premix. After that, the premix. Subsequently, the mixture thus obtained is preferably subjected to a wet grinding operation. This gives the product the desired consistency and homogeneity.
  • the admixture of further, especially temperature or shear-sensitive ingredients such as perfume oils and enzymes is then carried out, their homogeneous incorporation should be done as gently as possible, so as not to destroy the structure of the paste.
  • the resulting detergents or cleaners according to the invention are flowable and pumpable directly after production by the applied shear forces and can thus be filled into conventional sales containers.
  • a paste-like composition according to the invention preferably has a viscosity at 25 ° C. in the range from 60,000 mPa.s to 100,000 mPa.s, in particular 70,000 mPa.s to 90,000 mPa.s, measured with a Brookfield rotary viscometer (Spindel.Nr 7) at 5 revolutions per minute. These viscosity values refer to the reading after a measuring time of 3 minutes to take into account any possible thixotropic effect of the paste.
  • the pasty washing and cleaning agent has in one special embodiment of the invention preferably at room temperature such a viscosity that it is not flowable under the action of gravity.
  • an agent according to the invention preferably has a considerable, typically 100 to 1000 times lower viscosity.
  • An agent according to the invention normally has a density in the range of 1.3 kg / l to 1.6 kg / l.
  • the composition according to the invention can be dosed with conventional devices for metering pastes, as described, for example, in the international patent application WO 95/29282 , of the German patent application DE 196 05 906 , of the German patent DE 44 30 418 or the European patents EP 0 295 525 respectively EP 0 356 707 have been described.
  • a particularly suitable for the dosage pseudoplastic paste-form detergent is suitable for example from the European patent EP 0 721 521 is known and is preferably used for the dosage pseudoplastic viscosity pastes.
  • the detergents and cleaners according to the invention can also be filled in pre-portioned form into, in particular, water-soluble films.
  • Such films are for example in the European Patent Application EP 0 253 151 described.
  • a paste-form agent according to the invention is preferably used in commercial laundry for washing and disinfecting dirty laundry. It is used in concentrations of preferably 2 g / l to 5 g / l in the wash.
  • E. faecium ATCC 6057 9.34 log./ml (preculture on Brain Heart infusion agar, 48 h at 36 ⁇ 1 ° C) Concentrations of Reduction factors (log.) After M1 Exposure time in minutes (g per liter) 5 10 15 30 Without albumin load (I / 2.3.1) 6 5.07 ⁇ 5.27 ⁇ 5.26 ⁇ 5.26 3 3.50 ⁇ 5.27 ⁇ 5.26 ⁇ 5.26 1.5 3.05 ⁇ 5.27 ⁇ 5.26 ⁇ 5.26 0.75 3.02 ⁇ 5.27 ⁇ 5.26 ⁇ 5.26 passphrase (Log./20°C) 6.27 6.27 6.27 6.26 6.26 passphrase (log./60 ° C) 6,24 6,17 6.17 6.16 6.10 With 0.2% albumin load (I / 2.3.2) 6 4.90 ⁇ 5.29 ⁇ 5.24 ⁇ 5.10 3 4.51 ⁇ 5.29 ⁇ 5.24 ⁇ 5.10 1.5 3.62 ⁇ 5.29 ⁇ 5.24 ⁇ 5.10 0.75 3.09 ⁇ 5.29 ⁇ 5.24
  • Test germ Enterococcus faecium ATCC 6057
  • Test series M1: 3.0 g / l liquor - added to Start of the washing process disinfection temperature 60 ° C Reaction time: 15 minutes

Claims (19)

  1. Produit de lavage pâteux à effet désinfectant, destinés à des laveries industrielles, contenant un tensioactif non ionique, des adjuvants organiques et/ou inorganiques, des agents de blanchiment à base de peracide ainsi que, le cas échéant, d'autres ingrédients usuels,
    caractérisé en ce qu'
    il contient 30 à 60 % en poids de tensioactif non ionique, dont 32 à 55 % en poids de tensioactif non ionique sont sous forme d'un ou plusieurs alcools éthoxylés et/ou propoxylés, 0,5 à 5 % en poids d'acide gras et/ou de sel alcalin d'acide gras, 5 à 15 % en poids de citrate et/ou d'acide citrique et 15 à 35 % en poids de composé peracide inorganique, et il est dépourvu de métasilicate alcalin et d'activateur de blanchiment.
  2. Produit selon la revendication 1,
    caractérisé en ce que
    35 à 50 % en poids de tensioactif non ionique ont la forme d'un ou plusieurs alcools éthoxylés et/ou propoxylés.
  3. Produit selon la revendication 1 ou la revendication 2,
    caractérisé en ce qu'
    il contient de 0,75 à 2,5 % en poids, en particulier de 1 à 2 % en poids d'acide gras et/ou de sel alcalin d'acide gras.
  4. Produit selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce qu'
    il contient un mélange d'acide gras et de sel alcalin d'acide gras en rapport pondéral de l'ordre de 1:99 à 50:50, en particulier de 5:95 à 25:75.
  5. Produit selon l'une quelconque des revendications 1 à 4,
    caractérisé en ce qu'
    il contient de 8 à 12,5 % en poids de citrate et/ou d'acide citrique.
  6. Produit selon l'une quelconque des revendications 1 à 5,
    caractérisé en ce qu'
    il contient, outre le citrate et/ou l'acide citrique, de 2 à 12 % en poids, en particulier de 5 à 10 % en poids d'autres adjuvants organiques sous forme de polycarboxylate polymère.
  7. Produit selon l'une quelconque des revendications 1 à 6,
    caractérisé en ce qu'
    il contient de 20 à 30 % en poids, en particulier de 22,5 à 27,5 % en poids de composé peracide inorganique.
  8. Produit selon l'une quelconque des revendications 1 à 7,
    caractérisé en ce que
    le composé peracide inorganique est choisi dans le groupe comprenant le perborate alcalin, le percarbonate alcalin et leurs mélanges.
  9. Produit selon l'une quelconque des revendications 1 à 8,
    caractérisé en ce qu'
    il contient jusqu'à 5 % en poids et, en particulier de 0,5 à 3 % en poids de sulfonate d'alkylbenzène.
  10. Produit selon l'une quelconque des revendications 1 à 9,
    caractérisé en ce que
    son pH est de l'ordre de 9,5 à 11,5, en particulier de 10 à 11, en solution aqueuse à 1 % en poids.
  11. Produit selon l'une quelconque des revendications 1 à 10,
    caractérisé en ce que
    sa viscosité à 25 °C est de l'ordre de 60 000 mPa.s à 100 000 mPa.s, en particulier de 70 000 mPa.s à 90 000 mPa.s (viscosimètre rotatif de Brookfield, broche No 7, 5 tours par minute).
  12. Produit selon l'une quelconque des revendications 1 à 11,
    caractérisé en ce qu'
    il contient de 5 à 15 % en poids, en particulier de 6 à 10 % en poids de carbonate alcalin et/ou d'hydrogénocarbonate alcalin.
  13. Produit selon l'une quelconque des revendications 1 à 12,
    caractérisé en ce que
    les constituants présents en tant que phase solide dans le produit pâteux sont finement texturés et présentent une granulométrie moyenne de l'ordre de 5 à 200 µm, en particulier de 10 à 80 µm.
  14. Produit selon l'une quelconque des revendications 1 à 13,
    caractérisé en ce que
    15 % au maximum des particules des constituants présents en tant que phase solide présentent une granulométrie de plus de 200 µm.
  15. Produit selon l'une quelconque des revendications 1 à 14,
    caractérisé en ce qu'
    il contient de 0,2 à 1,5 % en poids, en particulier de 0,5 à 1 % en poids d'enzyme, en particulier de protéase, d'amylase, de lipase et/ou de cellulase.
  16. Procédé de fabrication d'un produit pâteux selon l'une quelconque des revendications 1 à 15,
    caractérisé en ce qu'
    on prépare le tensioactif non ionique, on mélange le mélange constitué d'acide gras et de sel alcalin d'acide gras ainsi que, le cas échéant, du régulateur de mousse et du tensioactif anionique synthétique en un prémélange homogène, ensuite à ce prémélange, le cas échéant après l'avoir fait chauffer à des températures de l'ordre de 80 °C environ, on ajoute les constituants poudreux y compris l'acide citrique/le citrate du produit pâteux qu'on disperse dans le prémélange en particulier en agitant, après quoi on refroidit de nouveau le cas échéant à des températures de l'ordre de 45 °C environ et on ajoute le composé peracide, puis on soumet le mélange ainsi obtenu à une opération de broyage humide grâce à laquelle le produit acquiert la consistance et l'homogénéité souhaitées, puis on incorpore d'autres ingrédients, en particulier sensibles à la température et au cisaillement, de la manière la plus délicate et homogène possible.
  17. Utilisation d'un produit selon l'une quelconque des revendications 1 à 15, dans les laveries industrielles pour laver et désinfecter du linge sale.
  18. Procédé de lavage et de désinfection de linge dans les laveries industrielles,
    caractérisé en ce qu'
    on utilise un produit selon l'une quelconque des revendications 1 à 15.
  19. Procédé de lavage et de désinfection de linge dans les laveries industrielles,
    caractérisé en ce qu'
    on utilise un produit correspondant à l'une quelconque des revendications 1 à 15, auquel il manque un ingrédient, en particulier le composé peracide inorganique, et on utilise cet ingrédient séparément.
EP99965439A 1998-12-15 1999-12-04 Produit de lavage sous forme de pate Expired - Lifetime EP1141212B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19857687A DE19857687A1 (de) 1998-12-15 1998-12-15 Pastenförmiges Waschmittel
DE19857687 1998-12-15
PCT/EP1999/009503 WO2000036071A1 (fr) 1998-12-15 1999-12-04 Produit de lavage sous forme de pate

Publications (2)

Publication Number Publication Date
EP1141212A1 EP1141212A1 (fr) 2001-10-10
EP1141212B1 true EP1141212B1 (fr) 2007-08-08

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Country Status (12)

Country Link
US (1) US6627592B1 (fr)
EP (1) EP1141212B1 (fr)
AT (1) ATE369415T1 (fr)
AU (1) AU2095400A (fr)
CA (1) CA2351675A1 (fr)
CZ (1) CZ20012187A3 (fr)
DE (2) DE19857687A1 (fr)
ES (1) ES2293744T3 (fr)
HU (1) HUP0104550A3 (fr)
NO (1) NO20012938D0 (fr)
SK (1) SK8202001A3 (fr)
WO (1) WO2000036071A1 (fr)

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HUP0104550A2 (hu) 2002-03-28
NO20012938L (no) 2001-06-14
DE19857687A1 (de) 2000-06-21
CZ20012187A3 (cs) 2002-06-12
ES2293744T3 (es) 2008-03-16
AU2095400A (en) 2000-07-03
CA2351675A1 (fr) 2000-06-22
WO2000036071A1 (fr) 2000-06-22
DE59914446D1 (de) 2007-09-20
SK8202001A3 (en) 2001-12-03
HUP0104550A3 (en) 2002-12-28
EP1141212A1 (fr) 2001-10-10
NO20012938D0 (no) 2001-06-14
US6627592B1 (en) 2003-09-30
ATE369415T1 (de) 2007-08-15

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