WO2014012867A1

WO2014012867A1 - Liquid detergent with dye-transfer inhibitor properties

Info

Publication number: WO2014012867A1
Application number: PCT/EP2013/064851
Authority: WO
Inventors: Georg Meine; Cornelius Bessler
Original assignee: Henkel Ag & Co. Kgaa
Priority date: 2012-07-19
Filing date: 2013-07-12
Publication date: 2014-01-23
Also published as: DE102012212727A1; EP2875108A1; EP2875108B1

Abstract

The application relates to a liquid detergent or cleaning agent with improved dye-transfer inhibitor properties, comprising a) a dye-transfer inhibitor, and b) an anti-redeposition polysaccharide with a solution viscosity of < 30,000 mPa-s.

Description

LIQUID DETERGENT WITH COLOR TRANSFER INHIBITION

The invention relates to a liquid detergent or cleaning agent with a color transfer inhibitor and a polysaccharide.

In order to increase the cleaning performance, detergents or cleaning agents are generally added, in addition to the surfactants and builder materials which are indispensable for the washing process, to further constituents which can be combined under the term "washing assistants." The laundry assistants include, for example, foam regulators, soil release polymers, bleaching agents, grayness inhibitors and bleach activators.

Other washing auxiliaries are substances which are intended to prevent dyed textile

Fabric after washing cause a change in color. These

Color impression change washed, ie cleaner, textiles can be based on the one hand, that dye components are removed by the washing or cleaning process from the textile ("fading"), on the other hand can be deposited by differently colored textiles dyes on the textile ("discoloration") , The discoloration aspect may also play a role in undyed laundry items when washed together with colored laundry items. In order to avoid these undesirable side effects of removing dirt from textiles by treatment with usually surfactant-containing aqueous systems, detergents, especially if they are provided as so-called color or colored laundry detergents for colored textiles, contain active ingredients which prevent the detachment of dyes from the textile or At least the deposition of detached, located in the wash liquor to avoid dyes on textiles. Such substances are referred to as color transfer inhibitors.

From DE 2814287 A1 a detergent with color transfer inhibitor is known. In which

Color transfer inhibitors are homopolymers and copolymers of N-vinylimidazole.

However, there is still a need to inhibit dye transfer from washing or dyeing

Cleaning agents continue to improve.

Accordingly, it was an object of the present invention, a liquid washing or

To provide detergents with improved ink transfer inhibition. This object is achieved by a liquid washing or cleaning agent comprising

a) a color transfer inhibitor and

b) a graying-inhibiting polysaccharide having a solution viscosity <30,000 mPas.

It has surprisingly been found that the addition of a graying-inhibiting

Polysaccharide to a liquid washing or cleaning agent with color transfer inhibiting leads not only to an improvement in the grayness inhibition, but also to an improvement in the color transfer inhibition.

It is further preferred that the graying-inhibiting polysaccharide is a cellulose or a cellulose derivative. Graying-inhibiting cellulose or cellulose derivatives can be incorporated particularly well and stably into liquid washing or cleaning compositions containing a color transfer inhibitor.

In a preferred embodiment, the cellulose derivative is selected from the group consisting of carboxymethyl cellulose (CMC), an ether sulfonic acid salt of cellulose, an acidic sulfuric ester salt of cellulose, methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose, methyl hydroxyethyl cellulose,

Methylcarboxymethylcellulose, ethylhydroxyethylcellulose and a mixture of these

Cellulose derivatives.

It may be preferable that the graying-inhibiting polysaccharide is acid-treated. By an acid treatment, the incorporation of the graying-inhibiting polysaccharide into a liquid matrix of a detergent or cleaning agent can be improved without the

graying-inhibiting property of the graying-inhibiting polysaccharide is lost.

Further, it is preferred that the color transfer inhibitor is selected from the group consisting of polyvinylpyrrolidone (PVP), polyvinylimidazole (PVI), copolymers of vinylpyrrolidone and

Vinylimidazole (PVP / PVI), polyvinylpyridine N-oxide, poly-N-carboxymethyl-4-vinylpyridium chloride and mixtures thereof.

A particularly phase and storage-stable washing or cleaning agent is obtained when the liquid detergent or cleaning agent contains an alkoxylated oxo-alcohol, wherein the use of C ₁₃ . _5- oxo-alcohols with 7 EO, C ₁₃ . _15- oxo-alcohols with 8 EO or a mixture of these two oxo alcohols in the liquid detergents or cleaning agents is particularly preferred. Likewise a particularly clear as well as phase and storage-stable washing or cleaning agent is obtained if the liquid washing or cleaning agent contains a branched alkoxylated fatty alcohol, in particular 2-propylheptanol with 7 EO and / or 2-propylheptanol with 8 EO.

Another object of the invention is the use of a graying-inhibiting

Polysaccharides in a liquid washing or cleaning agent with color transfer inhibitor to increase the color transfer-inhibiting performance of the liquid detergent or cleaning agent.

In the following, the invention will be explained in more detail, inter alia, by way of examples.

The liquid washing or cleaning agent necessarily contains a graying-inhibiting

Polysaccharide with a solution viscosity <30,000 mPas and a color transfer inhibitor.

As graying-inhibiting polysaccharide is preferably a cellulose and / or a

Cellulose derivative as used. Suitable cellulose derivatives include, for example

Carboxymethylcellulose (CMC), an ether sulfonic acid salt of cellulose, an acidic

Sulfuric acid ester salt of cellulose, methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, methylhydroxyethylcellulose,

Methylcarboxymethylcellulose, ethylhydroxyethylcellulose or a mixture of two or more of these cellulose derivatives. Particularly preferred cellulose derivatives include carboxymethylcellulose, hydroxypropylmethylcellulose, methylhydroxyethylcellulose or mixtures of two or more of these cellulose derivatives.

Other suitable graying-inhibiting polysaccharides include polyethylene glycol-modified celluloses and cellulose derivatives, especially polyethylene glycol-modified ones

Hydroxypropyl methylcellulose.

In a preferred embodiment, the cellulose or cellulose derivative is added before

Incorporation into the liquid matrix of the washing or cleaning agent with an acid, preferably an alkylbenzenesulfonic acid. Particularly preferred is dodecylbenzenesulfonic acid and / or Ci ₀ -Ci ₃ -alkylbenzenesulfonic acid for the acid treatment of the cellulose or the

Cellulosederivats used.

Accordingly, particularly preferred cellulose derivatives include acid-treated ones

Carboxymethyl cellulose (CMC), an acid-treated cellulose ether sulfonic acid salt, an acid-treated acid sulfuric acid ester salt of cellulose, acid-treated methyl cellulose, acid-treated ethyl cellulose, acid-treated hydroxyethyl cellulose, acid-treated

Hydroxypropylcellulose, acid-treated hydroxypropylmethylcellulose, acid-treated ethylhydroxyethylcellulose, acid-treated methylcarboxymethylcellulose, acid-treated ethylhydroxyethylcellulose or a mixture of these acid-treated cellulose derivatives. Most preferably, the acid-treated cellulose derivative is acid-treated

Carboxymethylcellulose, especially acid-treated sodium carboxymethylcellulose, acid-treated hydroxypropylmethylcellulose and / or acid-treated

Methylhydroxyethylcellulose.

Suitable cellulose derivatives can be obtained, for example, under the names Ethocel®, Methocel®, Walocel® or Cellosize® from The Dow Chemical Company.

The content of graying-inhibiting polysaccharide having a solution viscosity <30,000 mPas is preferably at least 0.001% by weight, more preferably 0.05 to 5% by weight, still more preferably 0.1 to 3% by weight and most preferably 0, 2 to 2.5 wt .-%, each based on the total liquid detergent or cleaning agent.

A particularly good increase of the dye transfer-inhibiting performance is obtained when using a hydroxypropylmethylcellulose as a graying-inhibiting polysaccharide.

The solution viscosity gives the viscosity of a 2% aqueous solution of

graying-inhibiting polysaccharide at 20 ° C, as measured on a Brookfield RVT type rotary viscometer at 20 rpm.

The higher the degree of polymerization and thus the molecular weight of a graying-inhibiting polymer, the higher the viscosity achieved in the dissolution. Graying-inhibiting polysaccharides with a solution viscosity <30,000 mPas can be well and stably incorporated into liquid detergents or cleaners.

It has been found that particularly clear solutions liquid washing or cleaning agents with high graying and color transfer inhibiting benefits are obtained when the graying-inhibiting polysaccharide has a solution viscosity between 1. 000 and 20,000 mPas.

Furthermore, in view of incorporability into a liquid washing or cleaning agent, it may be advantageous if the graying-inhibiting polysaccharide is a cellulose derivative in which up to 30% of the OH groups are methylated.

In addition to the graying-inhibiting polysaccharide contain the liquid washing or

Detergent a color transfer inhibitor. Suitable dye transfer inhibiting agents include polyvinylpyrrolidone (PVP), polyvinylimidazole (PVI), copolymers of vinylpyrrolidone and vinylimidazole (PVP / PVI), polyvinylpyridine-N-oxide, poly-N-carboxymethyl-4-vinylpyridium chloride, and mixtures thereof. Particularly preferred

Polyvinylpyrrolidone (PVP), polyvinylimidazole (PVI) or copolymers of vinylpyrrolidone and

Vinylimidazole (PVP / PVI) used as a color transfer inhibitor.

The polyvinylpyrrolidones (PVP) preferably have an average molecular weight of 2,500 to 400,000 and are commercially available from ISP Chemicals as PVP K 15, PVP K 30, PVP K 60 or PVP K 90 or from BASF as Sokalan® HP 50 or Sokalan® HP 53 available.

The copolymers of vinylpyrrolidone and vinylimidazole (PVP / PVI) preferably have one

Molecular weight in the range of 5,000 to 100,000. Commercially available is a PVP / PVI copolymer, for example from BASF under the name Sokalan® HP 56th

The amount of color transfer inhibitor is preferably from 0.05 to 5 wt .-%, preferably from 0.1 to 3 wt .-% and more preferably from 0.2 to 2.5 wt .-%, each based on the total liquid Washing or cleaning agents.

In addition to the graying-inhibiting polysaccharide and the dye transfer inhibitor, the liquid washing or cleaning agent may contain other ingredients containing the

further improve the performance and / or aesthetic properties of the washing or cleaning agent. In the context of the present invention, the washing or cleaning agent preferably additionally contains one or more substances from the group of nonionic surfactants, anionic surfactants, builders, bleaches, enzymes, electrolytes, pH adjusters, perfumes, perfume carriers, fluorescers, dyes, hydrotopes, foam inhibitors , Silicone oils,

soil release polymers, anti-shrinkage agents, anti-wrinkling agents, antimicrobial agents, non-aqueous solvents, germicides, fungicides, antioxidants, preservatives, corrosion inhibitors, antistatic agents, bittering agents, ironing aids, repellents and impregnating agents, skin care agents, swelling and anti-slip agents, softening components and UV absorbers ,

A particularly preferred further ingredient of the liquid detergent or cleaning agent is an alkoxylated oxo-alcohol. Oxo alcohols are primary, partially branched higher alcohols, which are obtained in the oxo synthesis. These are oxo-aldehydes or their primary

Aldokondensationsprodukte converted by catalytic hydrogenation in the corresponding oxo alcohols. Alkoxylated oxo-alcohols are nonionic surfactants. Preference is given to a Ci ₃ -i ₅ -oxo-alcohol with 7 EO, a Ci ₃ _i ₅ -Oxo-alcohol with 8 EO or a mixture of these two oxo-alcohols as nonionic surfactant in the liquid washing or

Detergents used.

The content of alkoxylated oxo-alcohol is preferably 3 to 50 wt .-%, more preferably 4 to 35 wt .-% and most preferably 5 to 30 wt .-%, each based on the total liquid detergent or cleaning agent.

Alternatively, or in addition to the alkoxylated oxo alcohol, the liquid washing or

Detergents contain a cited, alkoxylated fatty alcohol as another ingredient.

Preference is given to using 2-propylheptanol with 7 EO, 2-propylheptanol with 8 EO or a mixture of these two fatty alcohols in the liquid detergents or cleaners.

In addition to the alkoxylated oxo alcohol and / or the indicated, alkoxylated fatty alcohol, the liquid washing or cleaning agent may contain other nonionic surfactants. Suitable nonionic surfactants include linear alkoxylated fatty alcohols, alkoxylated fatty acid alkyl esters, fatty acid amides, alkoxylated fatty acid amides, polyhydroxy fatty acid amides, alkylphenol polyglycol ethers, amine oxides, alkyl polyglucosides, and mixtures thereof.

As linear alkoxylated fatty alcohols ethoxylated alcohols having preferably 8 to 18 carbon atoms and an average of 4 to 12 moles of ethylene oxide (EO) per mole of alcohol used. In particular, alcohol ethoxylates having 12 to 18 carbon atoms, for example from coconut, palm, tallow or

Oleyl alcohol, and on average 5 to 8 EO per mole of alcohol preferred. Preferred ethoxylated alcohols include, for example, C ₁₂ -i4 alcohols containing 7 EO or 4 EO, C ₉ _n alcohol containing 7 EO, C ₁₂ -i8 alcohols containing 5 EO or 7 EO, to C _16. ₁₈ alcohols with 5 EO or 7 EO and mixtures of these. The stated degrees of ethoxylation (= EO) represent statistical averages, which may be an integer or a fractional number for a particular product. Preferred alcohol ethoxylates have a narrow homolog distribution (narrow rank ethoxylates, NRE). In addition to these nonionic surfactants, fatty alcohols with more than 12 EO can also be used. Examples include tallow fatty alcohol with 14 EO, 25 EO, 30 EO or 40 EO. Nonionic surfactants containing EO and PO groups together in the molecule can also be used according to the invention.

Washing or cleaning agents with the other nonionic surfactants as alkoxylated oxo alcohols and branched alkoxylated alcohols tend in part to instabilities and / or phase separation during storage. Therefore, it may be preferred that the amount of further nonionic surfactants, especially of linear alkoxylated fatty alcohols, in the absence of alkoxylated oxo alcohols or branched alkoxylated alcohols is less than 2 wt .-%, more preferably less than 1 wt .-% and particularly preferably less than 0.5 wt .-%, each based on the total amount of liquid detergent or cleaning agent is.

It is preferred that the liquid detergent or cleaning agent additionally contains an anionic surfactant.

Suitable anionic surfactant include alkylbenzenesulfonic acid salts, olefinsulfonic, C ₂ _18- alkanesulfonic, fatty alcohol sulfates, fatty acid soaps, fatty alcohol ether or a mixture of two or more of these anionic surfactants can. Of these anionic surfactants, alkylbenzenesulfonic acid salts, fatty alcohol ether sulfates, fatty acid soaps and mixtures thereof are particularly preferred.

The content of anionic surfactant is preferably 1 to 50 wt .-% and more preferably 2 to 40 wt .-%, each based on the total liquid detergent or cleaning agent.

As surfactants of the sulfonate type preferably come C ₉ .i ₃ -Alkylbenzolsulfonate,

Olefinsulfonate, ie mixtures of alkene and hydroxyalkanesulfonates and disulfonates, as obtained for example from Ci ₂ _i ₈ monoolefins with terminal or internal double bond by sulfonation with gaseous sulfur trioxide and subsequent alkaline or acidic hydrolysis of the sulfonation, into consideration. Also suitable are C ₁₂ -i8-alkanesulfonates and the esters of α-sulfo fatty acids (ester sulfonates), for example the α-sulfonated methyl esters of hydrogenated coconut, palm kernel or tallow fatty acids.

Alk (en) yl sulfates are the salts of the Schwefelsäurehalbester Ci ₂ -C ₈ fatty alcohols, for example coconut fatty alcohol, tallow fatty alcohol, lauryl, myristyl, cetyl or stearyl alcohol, or C ₀ -C ₂₀ oxo-alcohols and those Halbester secondary alcohols of these chain lengths are preferred. Of washing technology interest, the Ci ₂ -Ci ₆ alkyl sulfates and Ci ₂ -Ci ₅ alkyl sulfates and Ci4-Ci ₅ alkyl sulfates are preferred. 2,3-alkyl sulfates are also suitable anionic surfactants.

Also, fatty alcohol ether sulfates, such as the sulfuric acid monoesters of straight-chain or branched C ₇ ethoxylated with from 1 to 6 mol of ethylene oxide. ₂ -alcohols, such as 2-methyl-branched C ₉ _n alcohols having on average 3.5 moles of ethylene oxide (EO) or

with 1 to 4 EO, are suitable.

Further suitable anionic surfactants are fatty acid soaps. Suitable are saturated and unsaturated fatty acid soaps, such as the salts of lauric acid, myristic acid, palmitic acid, stearic acid,

(hydrogenated) erucic acid and behenic acid and, in particular, from natural fatty acids, for example coconut, palm kernel, olive oil or tallow fatty acids, derived soap mixtures. The anionic surfactants including the fatty acid soaps may be in the form of their sodium, potassium or magnesium or ammonium salts. Preferably, the anionic surfactants are in the form of their sodium salts and / or ammonium salts. Amines which can be used for the neutralization are preferably choline, triethylamine, monoethanolamine, diethanolamine, triethanolamine, methylethylamine or a mixture thereof, with monoethanolamine being preferred.

The total amount of anionic surfactant and nonionic surfactant in the liquid washing or cleaning agent is preferably up to 85% by weight, preferably 2 to 75% by weight and more preferably 5 to 70% by weight, based on the total liquid wash - or

Cleaning supplies.

The washing or cleaning agent is liquid. The washing or cleaning agent may contain water as the main solvent.

Examples

Liquid detergents or cleaners were prepared by conventional and known methods and procedures. In the following Table 1, the compositions are of two

Washing or cleaning agents according to the invention E1 and E2 and not two

Washing or cleaning agents according to the invention V1 and V2 shown.

Table 1: Liquid washing or cleaning agents E1 and E2 and also V1 and V2 [all amounts are given in% by weight of active ingredient, based on the composition]

Ingredients E1 E2 V1 V2

Cio-Ci _3- Alkylbenzolsulfonsäure 7 7 7 7

C ₁₃ -C ₅ oxo alcohol with 7 EO 7 7 7

2-propylheptanol with 7 EO - 5

C ₁₆ . ₁₈ fatty alcohol with 7 EO - 2

C-i2-i8 fatty acid 2 2 2 2

Na lauryl ether sulfate (2 EO) 9 9 9 9

Hydroxypropylmethylcellulose * 0.5 0.5 0.5

PVP / PVI ** 0.2 0.2 0.2

1, 2-propanediol 6 6 6 6

Ethanol 2 2 2 2

Phosphonate 0.9 0.9 0.9 0.9

NaOH (50%) 2.7 2.7 2 2.7

Citric acid 2 2 2 2

Boric acid 1 1 1 1

Dyes, enzymes (cellulase,

2.5 2.5 2.5 2.5

Amylase & protease), perfume

Water at 100 to 100 at 100

Solution viscosity = 7,800 MPa (2% aqueous solution, Brookfield RVT Type RVT at 20 ° C and 20 rpm).

* ^* Sokalan® HP 56 (ex BASF)

To determine the color transfer inhibition, three fabrics (a terry toweling and two terry toweling wipes) were each washed with 40 g of the liquid detergent or cleaning agent E1, V1 or V2 to be tested in a domestic washing machine (Miele W 526) with two commercial jeans at 30 ° C , After drying and mangling of the laundry, the whiteness of the fabrics was determined spectrophotometrically (Datacolor DC600-3) as the Y value (see Table 2).

Table 2: Y values (average of 10 measurement points per tissue)

Detergents or cleaning agents Y values

Terry towel soapcloth *

E1 73.1 74.9

V1 71, 6 63.5

V2 71, 4

^* Means of two tissues each

The results clearly showed that by using a combination of a

graying-inhibiting polysaccharide having a solution viscosity <30,000 mPas and a dye transfer inhibitor, the ink transfer-inhibiting performance of a liquid detergent or cleaning agent can be increased.

The washing or cleaning agents E1 and E2 were still stable after 12 weeks storage at 20 ° C and 40 ° C and showed no clouding or sediment. The washing or cleaning agent E2 had a particularly high transparency.

Claims

claims

1. A liquid washing or cleaning agent, comprising

a) a color transfer inhibitor and

2. Liquid washing or cleaning agent according to claim 1, characterized in that the graying-inhibiting polysaccharide has a solution viscosity between .000 and 20,000 mPas.

3. Liquid washing or cleaning agent according to claim 1 or claim 2, characterized

characterized in that the graying-inhibiting polysaccharide is a cellulose or a cellulose derivative selected from the group consisting of carboxymethylcellulose (CMC), an ether sulfonic acid salt of cellulose, an acidic sulfuric acid ester salt of cellulose, methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, methylhydroxyethylcellulose, methylcarboxymethylcellulose, ethylhydroxyethylcellulose and a Mixture of these cellulose derivatives is.

4. Liquid detergent or cleaning agent according to one of claims 1 to 3, characterized

characterized in that the graying-inhibiting polysaccharide is acid-treated.

5. Liquid detergent or cleaning agent according to claim 3 or claim 4, characterized

characterized in that the graying-inhibiting polysaccharide is a cellulose derivative in which up to 30% of the OH groups are methylated.

6. Liquid detergent or cleaning agent according to any one of claims 1 to 5, characterized

in that the color transfer inhibitor is selected from the group consisting of polyvinylpyrrolidone (PVP), polyvinylimidazole (PVI), copolymers of vinylpyrrolidone and vinylimidazole (PVP / PVI), polyvinylpyridine-N-oxide, poly-N-carboxymethyl-4-vinylpyridium chloride and mixtures it.

7. Liquid washing or cleaning agent according to one of claims 1 to 6, characterized

in that the liquid washing or cleaning agent additionally contains an alkoxylated oxo-alcohol and / or a branched alkoxylated fatty alcohol.

8. Liquid washing or cleaning agent according to claim 7, characterized in that the alkoxylated oxo-alcohol is selected from the group consisting of Ci ₃ _i ₅ -Oxo- alcohols with 7 EO, Ci ₃ _i ₅ -oxo-alcohols with 8 EO and mixtures thereof.

9. Liquid washing or cleaning agent according to claim 7, characterized in that the branched alkoxylated fatty alcohol is selected from the group consisting of 2-propylheptanol with 7 EO, 2-propylheptanol with 8 EO and mixtures thereof.

10. Use of a graying-inhibiting polysaccharide having a solution viscosity

<30,000 mPas in a liquid washing or cleaning agent with color transfer inhibitor to increase the color transfer inhibiting performance of the liquid detergent or cleaning agent.