EP1084224B1 - Agent de blanchiment aqueux a structure visqueuse - Google Patents

Agent de blanchiment aqueux a structure visqueuse Download PDF

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Publication number
EP1084224B1
EP1084224B1 EP99926391A EP99926391A EP1084224B1 EP 1084224 B1 EP1084224 B1 EP 1084224B1 EP 99926391 A EP99926391 A EP 99926391A EP 99926391 A EP99926391 A EP 99926391A EP 1084224 B1 EP1084224 B1 EP 1084224B1
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EP
European Patent Office
Prior art keywords
weight
composition
viscosity
water
textile
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.)
Revoked
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EP99926391A
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German (de)
English (en)
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EP1084224A1 (fr
Inventor
Hans-Jürgen Riebe
Theodor Völkel
Florence Lambert
Josef Penninger
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Henkel AG and Co KGaA
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Henkel AG and Co KGaA
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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
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0084—Antioxidants; Free-radical scavengers
    • 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
    • C11D1/83—Mixtures of non-ionic with anionic compounds
    • 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
    • C11D3/26—Organic compounds containing nitrogen
    • C11D3/33—Amino carboxylic acids
    • 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
    • C11D3/36—Organic compounds containing phosphorus
    • C11D3/361—Phosphonates, phosphinates or phosphonites
    • 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
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/29—Sulfates of polyoxyalkylene ethers
    • 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
    • C11D1/662—Carbohydrates or derivatives
    • 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
    • C11D1/722—Ethers of polyoxyalkylene glycols having mixed oxyalkylene groups; Polyalkoxylated fatty alcohols or polyalkoxylated alkylaryl alcohols with mixed oxyalkylele groups

Definitions

  • the present invention relates to an aqueous bleaching agent based on hydrogen peroxide, especially for use as laundry pretreatment agents, but also as Additive in conventional washing processes is suitable for its use as Laundry pretreatment agent and a washing method using such Agent.
  • Common liquid peroxide-containing pretreatment agents are relatively low-viscosity means that they generally have viscosities not exceeding 200 mPa.s. They contain alongside the peroxide is usually water and surfactants, which improve wettability the stains should apply when applying the agent. Due to the high network effect and the low viscosity of the agent causes the product to run badly on the treated textile, so that even with careful application of the agent in all Usually a much larger area than the actual stain is wetted. this leads to that part of the peroxide applied to the textile does not bleach the Soiling is available, but is wasted, so to speak, because it is not in appropriate direct contact with the stain.
  • Structural viscosity is understood here to mean the effect that the liquid agent has a higher viscosity when exposed to low shear forces than when applied higher shear forces.
  • the change in viscosity is usually not directly proportional the change in acting shear forces, but the viscosity increases with decreases in shear force in the low shear range more than in the high Shear area. This property can be checked experimentally by: measures viscosity under various shear conditions. One way to do this offers a common rotary viscometer at different speeds the spindle.
  • the invention relates to a liquid water-based bleaching or Laundry pretreatment agent containing 0.2% by weight to 25% by weight of hydrogen peroxide, Complexing agent for heavy metals in an amount up to 5 wt .-%, surfactant in one Amount up to 15% by weight, radical scavengers in an amount up to 0.1% by weight and water in amounts of 55% by weight to 90% by weight and as much polysaccharide thickening agent, that it was at 20 ° C at 20 revolutions per minute (Brookfield Rotational viscometer) a viscosity in the range of 200 mPa.s to 5000 mPa.s, in particular 300 mPa.s to 3000 mPa.s and at 5 revolutions per minute (Brookfield Rotational viscometer) at least by a factor of 1.5, in particular 2 to 50 and particularly preferably 2.5 to 30 higher viscosity than at 50 revolutions per Minute.
  • Brookfield Rotational viscometer a viscosity in the range of
  • the agents according to the invention contain hydrogen peroxide as an essential constituent, which is responsible for the bleaching performance, in amounts of preferably 0.5% by weight up to 20% by weight, in particular 2% by weight to 10% by weight. For the production of such agents can also be assumed from more concentrated hydrogen peroxide.
  • a polysaccharide thickening agent is an optionally modified one Polymer from saccharides such as glucose, galactose, mannose, gulose, old rose, allose etc. into consideration.
  • a water-soluble xanthan is preferred, as described, for example, under the product names Kelzan®, Rhodopol®, Ketrol® or Rheozan® are commercially available is used.
  • Xanthan is a polysaccharide that corresponds to that of the bacterial strain Xanthomas campestris from aqueous solutions is produced by glucose or starch (J. Biochem. Micobiol. Technol. Engineer. Vol. III (1961), pp. 51 to 63).
  • the polysaccharide thickening agent is preferably in amounts of Contain 0.05 wt .-% to 2.5 wt .-%, in particular 0.1 wt .-% to 2 wt .-%. He wears crucial not only to the viscosity, but also to the intrinsic viscosity of the invention Means at. It is particularly advantageous that when using such Thickening agents, especially of xanthan, have a wide viscosity Temperature range from about -5 ° C to 40 ° C changes only slightly and also when leaving of this temperature range there are reversible values in the viscosity range mentioned above adjust when the medium is brought back to room temperature.
  • Agents according to the invention contain one or more surfactants in amounts of preferably 0.1% by weight to 9% by weight, anionic surfactants, nonionic surfactants and mixtures thereof being particularly suitable.
  • Suitable anionic surfactants are, in particular, those which contain sulfate or sulfonate groups.
  • Preferred surfactants of the sulfonate type are C 9 -C 13 alkylbenzenesulfonates, olefin sulfonates, that is to say mixtures of alkene and hydroxyalkanesulfonates, and also disulfonates of the kind obtained, for example, from C 12 -C 18 monoolefins having an end or internal double bond by sulfonating Gaseous sulfur trioxide and subsequent alkaline or acidic hydrolysis of the sulfonation products.
  • alkanesulfonates obtained from C 12 -C 18 alkanes, for example by sulfochlorination or sulfoxidation with subsequent hydrolysis or neutralization.
  • esters of ⁇ -sulfofatty acids for example the ⁇ -sulfonated methyl esters of hydrogenated coconut, palm kernel or tallow fatty acids, which are produced by ⁇ -sulfonation of the methyl esters of fatty acids of vegetable and / or animal origin with 8 to 20 ° C -Atoms in the fatty acid molecule and subsequent neutralization to water-soluble mono-salts are considered.
  • ⁇ -sulfonated esters of hydrogenated coconut, palm, palm kernel or tallow fatty acids with sulfonation products of unsaturated fatty acids, for example oleic acid, in small amounts, preferably in amounts not above about 2 to 3% by weight. %, can be present.
  • ⁇ -sulfofatty acid alkyl esters are preferred which have an alkyl chain with no more than 4 carbon atoms in the ester group, for example methyl esters, ethyl esters, propyl esters and butyl esters.
  • MES methyl esters of ⁇ -sulfofatty acids
  • their saponified disalts can also be used.
  • Suitable anionic surfactants are sulfonated fatty acid glycerol esters, which are mono-, di- and triesters as well as their mixtures, such as those produced by esterification by a monoglycerol with 1 to 3 moles of fatty acid or in the transesterification of triglycerides with 0.3 to 2 moles of glycerol be preserved.
  • the alk (en) yl sulfates are the alkali and in particular the sodium salts of the sulfuric acid half esters of C 12 -C 18 fatty alcohols, for example from coconut fatty alcohol, tallow fatty alcohol, lauryl, myristyl, cetyl or stearyl alcohol or the C 10 -C 20 oxo alcohols and those half esters of secondary alcohols of this chain length are preferred. Also preferred are alk (en) yl sulfates of the chain length mentioned, which contain a synthetic, petrochemical-based straight-chain alkyl radical which have a degradation behavior analogous to that of the adequate compounds based on oleochemical raw materials.
  • C 12 -C 16 alkyl sulfates and C 12 -C 15 alkyl sulfates and C 14 -C 15 alkyl sulfates are particularly preferred from the point of view of washing technology.
  • 2,3-Alkyl sulfates which are produced, for example, according to US Pat. Nos. 3,234,258 or 5,075,041 and can be obtained as commercial products from Shell Oil Company under the name DAN®, are also suitable anionic surfactants.
  • sulfuric acid monoesters of the straight-chain or branched C 7 -C 21 alcohols ethoxylated with 1 to 6 mol ethylene oxide such as 2-methyl branched C 9 -C 11 alcohols with an average of 3.5 mol ethylene oxide (EO) or C 12 - C 18 fatty alcohols with 1 to 4 EO.
  • Fatty acid derivatives of amino acids for example of N-methyl taurine (taurides) and / or of N-methyl glycine (sarcosides) are suitable as further anionic surfactants.
  • the sarcosides or sarcosinates and in particular sarcosinates of higher and optionally mono- or polyunsaturated fatty acids such as oleyl sarcosinate, are particularly preferred.
  • the anionic surfactants can be in the form of their sodium, potassium or ammonium salts and also as soluble salts of organic bases, such as mono-, di- or triethanolamine.
  • the anionic surfactants are preferably in the form of their sodium or potassium salts, in particular in the form of the sodium salts.
  • 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 radical can be linear or preferably methyl-branched in the 2-position or can contain linear and methyl-branched radicals in the mixture, as are usually present in oxo alcohol radicals.
  • EO ethylene oxide
  • the preferred ethoxylated alcohols include, for example, C 12 -C 14 alcohols with 3 EO or 4 EO, C 9 -C 11 alcohols with 7 EO, C 13 -C 15 alcohols with 3 EO, 5 EO, 7 EO or 8 EO, C 12 -C 18 alcohols with 3 EO, 5 EO or 7 EO and mixtures thereof, such as mixtures of C 12 -C 14 alcohol with 3 EO and C 12 -C 18 alcohol with 7 EO.
  • the degrees of ethoxylation given represent statistical averages, which can be an integer or a fraction for a specific product.
  • Preferred alcohol ethoxylates have a narrow homolog distribution (narrow range ethoxylates, NRE).
  • the nonionic surfactants also include alkyl glycosides of the general formula RO (G) x , in which R is a primary straight-chain or methyl-branched, in particular methyl-branched aliphatic radical having 8 to 22, preferably 12 to 18, carbon atoms and G stands for a glycose unit with 5 or 6 carbon atoms, preferably for glucose.
  • the degree of oligomerization x which indicates the distribution of monoglycosides and oligoglycosides, is an arbitrary number - which, as an analytically determinable variable, can also take fractional values - between 1 and 10; x is preferably 1.2 to 1.4.
  • polyhydroxy fatty acid amides of the formula (I) in which R 3 CO is an aliphatic acyl radical having 6 to 22 carbon atoms, R 4 is hydrogen, an alkyl or hydroxyalkyl radical having 1 to 4 carbon atoms and [Z] is a linear or branched polyhydroxyalkyl radical with 3 to 10 carbon atoms and 3 to 10 hydroxyl groups:
  • the polyhydroxy fatty acid amides are preferably derived from reducing sugars with 5 or 6 carbon atoms, in particular from glucose.
  • the group of polyhydroxy fatty acid amides also includes compounds of the formula (II) in which R 3 represents a linear or branched alkyl or alkenyl radical having 7 to 12 carbon atoms, R 5 represents a linear, branched or cyclic alkylene radical or an arylene radical having 2 to 8 carbon atoms and R 6 represents a linear, branched or cyclic alkyl radical or Aryl radical or an oxy-alkyl radical having 1 to 8 carbon atoms, C 1 -C 4 -alkyl or phenyl radicals being preferred, and [Z] for a linear polyhydroxyalkyl radical whose alkyl chain is substituted by at least two hydroxyl groups, or alkoxylated, preferably ethoxylated or propoxylated derivatives of this radical.
  • [Z] is also preferably obtained here by reductive amination of a sugar such as glucose, fructose, maltose, lactose, galactose, mannose or xylose.
  • a sugar such as glucose, fructose, maltose, lactose, galactose, mannose or xylose.
  • the N-alkoxy- or N-aryloxy-substituted compounds can then, for example according to the teaching of international patent application WO 95/07331, be converted into the desired polyhydroxy fatty acid amides by reaction with fatty acid methyl esters in the presence of an alkoxide as catalyst.
  • nonionic surfactants which are used either as the sole nonionic surfactant or in combination with other nonionic surfactants, in particular together with alkoxylated fatty alcohols and / or alkyl glycosides, are alkoxylated, preferably ethoxylated or ethoxylated and propoxylated, fatty acid alkyl esters, preferably with 1 to 4 carbon atoms in the alkyl chain, in particular fatty acid methyl esters, as described, for example, in Japanese patent application JP 58/217598 or which are preferably prepared by the process described in international patent application WO 90/13533.
  • Nonionic surfactants of the amine oxide type for example N-coconut alkyl-N, N-dimethylamine oxide and N-tallow alkyl-N, N-dihydroxyethylamine oxide, and the fatty acid alkanolamides can also be suitable.
  • the amount of these nonionic surfactants is preferably not more than that of the ethoxylated fatty alcohols, in particular not more than half of them.
  • So-called gemini surfactants can be considered as further surfactants. These are generally understood to mean those compounds which have two hydrophilic groups per molecule. These groups are usually separated from one another by a so-called "spacer".
  • This spacer is usually a carbon chain, which should be long enough that the hydrophilic groups have a sufficient distance so that they can act independently of one another.
  • Such surfactants are generally characterized by an unusually low critical micelle concentration and the ability to greatly reduce the surface tension of the water.
  • the term gemini surfactants is understood not only to mean “dimeric” but also "trimeric” surfactants. Suitable gemini surfactants are, for example, sulfated hydroxy mixed ethers according to German patent application DE 43 21 022 or dimer alcohol bis and trimeral alcohol tris sulfates and ether sulfates according to German patent application DE 195 03 061.
  • End group-blocked dimeric and trimeric mixed ethers according to German patent application DE 195 13 391 are particularly characterized by their bi- and multifunctionality.
  • the end-capped surfactants mentioned have good wetting properties and are low-foaming, so that they are particularly suitable for use in machine washing or cleaning processes.
  • Gemini polyhydroxy fatty acid amides or poly polyhydroxy fatty acid amides as described in international patent applications WO 95/19953, WO 95/19954 and WO 95/19955 can also be used.
  • an agent according to the invention contains a surfactant system composed of alkyl ether sulfate of the general formula R 1 O- (CH 2 CH 2 O) n -SO 3 X, in which R 1 is a linear or branched-chain alkyl or alkenyl radical with 6 to 22 C - Atoms, n is a number from 1 to 10 and X is an alkali metal or ammonium ion, and alkyl polyglycol ethers of the general formula R 2 O- (C 3 H 6 O) 1 - (CH 2 CH 2 O) m - (C 3 H 6 O) n -OH, in which R 2 is a linear or branched-chain alkyl or alkenyl radical having 6 to 22 carbon atoms and m is a number from 1 to 10 and 1 and n is a number from 0 to 10, in a weight ratio of 1: 10 to 10: 1, in particular from 2: 1 to 5: 1.
  • R 1 is a linear or branched-
  • Suitable complexing agents contained in agents according to the invention for Heavy metals include aminocarboxylic acids and optionally functionally modified Phosphonic acids, for example hydroxy or aminoalkanephosphonic acids.
  • aminocarboxylic acids include, for example, nitrilotriacetic acid, methylglycinediacetic acid and diethylenethamine pentaacetic acid.
  • phosphonic acids come for example 1-hydroxyethane-1,1-diphosphonic acid (HEDP) respectively the disodium salt or the tetrasodium salt of this acid, ethylenediamine-tetramethylenephosphonic acid (EDTMP), diethylenetriamine-pentamethylenephosphonic acid (DTPMP) as well as their higher homologues in question.
  • HEDP 1-hydroxyethane-1,1-diphosphonic acid
  • ETMP ethylenediamine-tetramethylenephosphonic acid
  • DTPMP diethylenetriamine-pentamethylenephosphonic acid
  • Complexing agents also include ethylenediamine-N, N'-disuccinic acid (EDDS).
  • EDDS ethylenediamine-N, N'-disuccinic acid
  • the one in her Complexing agents called acid form can be used as such or in the form of the sodium salts be used.
  • Mixtures of aminocarboxylic acids are preferred with phosphonic acids.
  • Complexing agents for heavy metals are in agents according to the invention preferably contained in amounts of 0.05% by weight to 1% by weight.
  • Agents are preferably contained in amounts of 0.01% by weight to 0.1% by weight, include phenols such as 1,6-di-tert-butyl-4-methylphenol (butylated hydroxytoluene, BHT), Hydroquinones such as di-tert-butyl hydroquinone, catechols such as allyl catechol, alkylated Diphenylamine or N-phenyl- ⁇ -naphthylamine and dihydroquinolines. As a preferred Radical scavenger is used BHT.
  • Agents according to the invention are preferably acidic and in particular have a pH in the range of 2 to 4.
  • acids which are compatible with the system, in particular those mentioned above Aminocarboxylic or phosphonic acids, citric acid, acetic acid, tartaric acid, malic acid, Lactic acid, glycolic acid, succinic acid, glutaric acid and / or adipic acid, but also Mineral acids such as sulfuric acid, phosphoric acid or alkali hydrogen sulfates, or Contain bases, especially ammonium or alkali hydroxides.
  • all agents according to the invention can be used in Liquid detergents contain the usual ingredients with the essential Constituents, especially the hydrogen peroxide and the thickening system, are tolerated. These include, for example, foam regulator active ingredients, color and Fragrances and, if desired, optical brighteners.
  • Agents according to the invention can be done in a simple manner by simple means Mixing their ingredients can be made. They are homogeneous systems with one high storage stability and good stain removal performance with low textile damage potential. They are preferably contaminated for pretreatment Textiles used before washing. In addition or instead, you can also put them in Form of an additive to a detergent, especially for machine washing of textiles.
  • a washing process using the inventive Agents are preferably carried out in such a way that a liquid agent according to the invention undiluted on the soiled textile or a part of the soiled textile, the embraces the stain to be removed, applies it, preferably there only so long lets it not dry out, and the textile using water or optionally an aqueous wash liquor which contains a conventional detergent, washes especially using a machine.
  • a simple blending of the ingredients in the proportions indicated in the table below produced a liquid bleach-containing laundry pretreatment agent B1 , which was adjusted to a pH of 3 by adding small amounts of phosphoric acid and the viscosity (in mPa. s at 20 ° C).
  • Composition (% by weight) medium B1 hydrogen peroxide 5 ether sulfate 2 nonionic surfactant 0.5 Keltrol® T 0.45 complexing 0.2 BHT 0.03 ethanol 0.2 water to 100 viscosity 910

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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)
  • Inorganic Chemistry (AREA)
  • Biochemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Saccharide Compounds (AREA)

Claims (14)

  1. Agent liquide aqueux de blanchiment ou selon les cas de prétraitement de la lessive contenant de 0,2 % en poids à 25 % en poids de peroxyde d'hydrogène, d'agent complexant pour les métaux lourds en une quantité allant jusqu'à 5 % en poids, un agent tensioactif en une quantité allant jusqu'à 15 % en poids, un fixateur de radicaux en une quantité allant jusqu'à 0,1 % en poids ainsi que de l'eau à des quantités allant de 55 % en poids à 90 % en poids et suffisamment de matière active épaississante polysaccharidique pour que l'on atteigne à 20°C à 20 tours par minute (viscosimètre rotatif Brookfleld) une viscosité allant de 200 mPa.s à 5000 mPa.s, et à 5 tours par minute (viscosimètre rotatif Brookfield) une viscosité multipliée par un facteur d'au moins 1,5 par rapport à ce que l'on observe à 50 tours par minute.
  2. Agent selon la revendication 1,
    caractérisé en ce qu'
    il contient une matière active épaississante polysaccharidique à raison de 0,05 % en poids à 2.5 % en poids, en particulier de 0,1 % en poids à 2 % en poids.
  3. Agent selon la revendication 1 ou 2,
    caractérisé en ce qu'
    il contient de 1,5 % en poids à 20 % en poids, en particulier de 2 % en poids à 10 % en poids, de peroxyde d'hydrogène.
  4. Agent selon l'une des revendications 1 à 3,
    caractérisé en ce qu'
    il présente à 5 tours par minute une viscosité multipliée par un facteur de 2 à 50, en particulier de 2,5 à 30, par rapport à 50 tours par minute.
  5. Agent selon l'une des revendications 1 à 4,
    caractérisé en ce que la matière active épaississante polysaccharidique est un xanthane.
  6. Agent selon l'une des revendications 1 à 5,
    caractérisé en ce qu'
    il contient de 0,5 % en poids à 9 % en poids d'agcnt tensioactif.
  7. Agent selon l'une des revendications 1 à 6,
    caractérisé en ce qu'
    il contient un système tensioactif constitué d'un sulfate d'alkyléther de formule générale R1O-(CH2CH2O)n-SO3X, dans laquelle R1 représente un radical alkyle ou alcényle à chaíne linéaire ou ramifiée comportant de 6 à 22 atomes de carbone, n représente un nombre allant de 1 à 10 et X est un ion de métal alcalin ou d'ammonium, et d'un éther d'alkylpolyglycol de formule générale R2O-C3H6O)1-(CH2CH2O)m-(C3H6O)n-OH, dans laquelle R2 est un radical alkyle ou alcényle comportant de 6 à 22 atomes de carbone et m est un nombre allant de 1 à 10, et 1 ainsi que n représentent des nombres allant de 1 à 10, dans un rapport pondéral de 1 :10 à 10 :1, en particulier de 2 :1 à 5 :1.
  8. Agent selon l'une des revendications 1 à 7,
    caractérisé en ce qu'
    il contient de 0,05 % en poids à 1 % en poids d'agent complexant pour les métaux lourds.
  9. Agent selon l'une des revendications 1 à 8,
    caractérisé en ce qu'
    il contient de 0,01 % en poids à 0.1 % en poids de capteur de radicaux.
  10. Agent selon l'une des revendications 1 à 9,
    caractérisé en ce qu'
    il est acide, et
    en ce qu'
    il présente en particulier un pH allant de 2 à 4.
  11. Utilisation d'un agent selon l'une des revendications 1 à 10 pour le prétraitement des textiles salis avant leur lavage.
  12. Utilisation d'un agent selon l'une des revendications 1 à 10 comme additif à un détergent, en particulier dans le lavage des textiles à la machine.
  13. Procédé de lavage des textiles,
    caractérisé en ce qu'
    on dépose un agent liquide selon l'une des revendications 1 à 10 sous une forme non diluée sur le textile sali ou sur une partie du textile sali, et on lave le textile en utilisant de l'eau ou une lessive de lavage aqueuse qui contient un détergent habituel, en particulier en employant un dispositif mécanique.
  14. Procédé selon la revendication 13,
    caractérisé en ce qu'
    après le détergent ou la lessive de lavage aqueuse habituel(le) on ajoute en outre un agent selon l'une des revendications 1 à 10 à la quantité déposée sur le textile.
EP99926391A 1998-06-03 1999-05-25 Agent de blanchiment aqueux a structure visqueuse Revoked EP1084224B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19824708 1998-06-03
DE19824708A DE19824708A1 (de) 1998-06-03 1998-06-03 Strukturviskoses wäßriges Bleichmittel
PCT/EP1999/003573 WO1999063042A1 (fr) 1998-06-03 1999-05-25 Agent de blanchiment aqueux a structure visqueuse

Publications (2)

Publication Number Publication Date
EP1084224A1 EP1084224A1 (fr) 2001-03-21
EP1084224B1 true EP1084224B1 (fr) 2003-01-22

Family

ID=7869720

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99926391A Revoked EP1084224B1 (fr) 1998-06-03 1999-05-25 Agent de blanchiment aqueux a structure visqueuse

Country Status (5)

Country Link
EP (1) EP1084224B1 (fr)
AT (1) ATE231543T1 (fr)
DE (2) DE19824708A1 (fr)
ES (1) ES2191434T3 (fr)
WO (1) WO1999063042A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19961659A1 (de) * 1999-12-21 2001-07-12 Henkel Kgaa Mittel zur Behandlung von Substraten
DE102007028509A1 (de) * 2007-06-18 2008-12-24 Henkel Ag & Co. Kgaa Flüssiges, hochschäumendes Wasch- oder Reinigungsmittel mit stabiler Viskosität
US8569221B2 (en) 2007-08-30 2013-10-29 Kimberly-Clark Worldwide, Inc. Stain-discharging and removing system
US7879744B2 (en) * 2007-08-30 2011-02-01 Kimberly-Clark Worldwide, Inc. Stabilized decolorizing composition

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3709348A1 (de) * 1987-03-21 1988-10-06 Degussa Peroxycarbonsaeure enthaltende waessrige bleichmittelsuspensionen, verfahren zu ihrer herstellung und ihre verwendung
CA2126382C (fr) * 1993-06-30 1998-12-15 Josephine L. Kong-Chan Compositions de detersifs a lessive aqueuses liquides et stables contenant du peroxyacide comme agent de blanchiment
CA2125719C (fr) * 1993-06-30 1998-12-15 Josephine L. Kong-Chan Compositions detergentes aqueuses stables et versables contenant un agent de blanchiment a base de peroxyde et un agent tensio-actif largement non ionique
ES2194968T3 (es) * 1996-11-13 2003-12-01 Procter & Gamble Composiciones acuosas,alcalinas, que contienen blanqueadores de peroxido de hidrogeno.

Also Published As

Publication number Publication date
ATE231543T1 (de) 2003-02-15
DE19824708A1 (de) 1999-12-09
EP1084224A1 (fr) 2001-03-21
DE59904101D1 (de) 2003-02-27
ES2191434T3 (es) 2003-09-01
WO1999063042A1 (fr) 1999-12-09

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