JPS6392700A - Detergent composition - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a cleaning composition, and more particularly to a cleaning composition that is excellent in preventing re-staining during the washing process.

[Conventional technology and problems]

In home washing, it is well known that dirt that falls off from clothing at 7 pm will adhere to the clothing again and re-contaminate it, causing deterioration of white skin. , polyethylene glycol, etc., the recontamination prevention effect against hydrophobic solid stains is quite satisfactory.However, as for the recontamination prevention agent against mud stains, which are hydrophilic solid stains, No satisfactory effects were observed.

Since mud stains recontaminate clothing and remain there, it can accelerate the yellowing of clothing.Therefore, there has been a desire to develop and investigate a more effective recontamination prevention agent.

[Means for solving problems]

As a result of intensive studies on this point, the present inventors found that by simultaneously containing a polycarboxylic acid polymer or its salt, polyethylene glycol, and carboxymethyl cellulose together with a fatty acid salt, good regeneration of mud stains, which are hydrophilic solid stains, was achieved. The present inventors have discovered that a cleaning agent having a stain-preventing effect can be obtained, and have completed the present invention.

That is, the present invention comprises: (A) Synthetic surfactant 10-40% by weight (B) Fatty acid salt having a carbon chain length of 10-22 1-10% by weight (C) Polycarboxylic acid polymer or its salt 0.3-40% by weight 3% by weight (D) 0.3-3% by weight of polyethylene glycol with an average molecular ff of 11,000-20,000 (E) 0.3-3% by weight of carboxymethyl cellulose with a degree of etherification of 0.3-0.8. The present invention provides a cleaning composition having the following properties.

The dispersion power of the present invention against mud stains is not satisfactory, and although the combination of a large amount of fatty acid salt and a synthetic surfactant alone has a slight recontamination prevention effect on mud stains, it is not satisfactory. By simultaneously containing carboxymethyl cellulose and polyethylene glycol, which have a good re-staining prevention effect on mud stains, and with hydrophobic solid stains, it has hydrophobic and hydrophilic properties. A cleaning composition having a good recontamination prevention effect on solid soils was obtained.

The synthetic surfactant used in the present invention includes a linear alkylbenzene sulfonate having an alkyl group having an average of 10 to 16 carbon atoms, and one molecule having a straight or branched alkyl group having an average of 10 to 20 carbon atoms. Alkyl ethoxy sulfates with an average of 0.5 to 8 moles of ethylene oxide added to the molecule, alkyl sulfates with an alkyl group having an average of 10 to 20 carbon atoms, and olefin sulfones with an average of 10 to 20 carbon atoms in one molecule. Acid salts, anionic surfactants such as α-sulfo fatty acid methyl ester salts having an average of 10 to 20 carbon atoms in one molecule, and 1 to 20 moles of ethylene oxide having an alkyl group having an average of 10 to 20 carbon atoms. Nonionic surfactants such as polyoxyethylene alkyl ether with added polyoxyethylene, higher fatty acid alkanolamide or its alkylene oxide adduct, other betaine type amphoteric surfactants, sulfonic acid type amphoteric surfactants, phosphate ester type surfactants and cationic surfactants.

The amount of the synthetic surfactant in the cleaning composition of the present invention is generally 10 to 40% by weight.

The fatty acid salt used in the present invention is an alkali metal salt or a substituted or unsubstituted ammonium salt of a higher fatty acid, and preferably has a total carbon number of 10 to 22, particularly 12 to 18. Examples of salts include alkali metal salts such as sodium and potassium salts, ammonium salts, and device IQ ammonium salts such as methylammonium, diethylammonium, and trimethylammonium. Among these, particularly preferred are sodium salts and It is a potassium salt.

These fatty acid salts include natural animal fats, vegetable fats, such as beef tallow,
It is produced by directly saponifying palm oil, coconut oil, palm kernel oil, and similar substances thereof, or by neutralizing fatty acids derived therefrom or synthetic fatty acids.

The content of the fatty acid salt in the cleaning composition of the present invention is 1 to 10
It is in the range of 2 to 7 weight percent or 2 to 7 weight percent. If the amount is less than 10% by weight, the foam suppression effect and mud dispersion ability will be low, and if it exceeds 10% by weight, it will cause an unpleasant odor to adhere to clothing, which is undesirable.

Examples of the polycarboxylic acid polymer or its salt used in the present invention include polyacrylic acid, polyacetic carboxylic acid,
Polyaconitic acid, polyitaconic acid, polycitraconic acid, polyfumaric acid, polymaleic acid, polymethaconic acid, poly-α-hydroxyacrylic acid, polyvinylsulfonic acid, sulfonated polymaleic M, maleic anhydride-diisobutylene copolymer, maleic anhydride -Styrene copolymer, maleic anhydride-methyl vinyl ether copolymer, maleic anhydride-ethylene copolymer, anhydrous maleic acid-ethylene crosslink copolymer, maleic anhydride-vinyl acetate copolymer, maleic anhydride Acid-acrylonitrile copolymer, maleic anhydride-acrylic ester copolymer, maleic anhydride-butadiene copolymer, maleic anhydride-isobrene copolymer, poly-β derived from maleic anhydride and carbon monoxide -Ketocarboxylic acid, itaconic acid, ethylene copolymer, ichconic acid-aconisotonic acid copolymer, itaconic acid-maleic acid copolymer, itaconic acid-
Examples include acrylic acid copolymers, malonic acid-methylene copolymers, methaconic acid-fumaric acid copolymers, and salts thereof. Among these, polyacrylates are particularly preferred.

The molecular weight is preferably 1,000 to 100,000, particularly preferably 4,000 to 30,000.

Their content is 0.3 to 3% by weight, preferably 0.5
~ double foot%. If it is less than 0.3% by weight, the effect is insufficient, and even if it exceeds 3% by weight, no further effect can be expected.

The polyethylene glycol used in the present invention has an average molecular weight of 1,000 to 20,000, preferably 4.00.
0 to 15,000, and its content is 0.3 to 15.000.
3% by weight, preferably 0.5 to 2% by weight.

If it is less than 0.3% by weight, the effect is insufficient, and even if it exceeds 3% by weight, no further effect can be expected.

Further, the carboxymethyl cellulose used in the present invention has a degree of etherification of 0.3 to 0.8, preferably 0.4 to 0.
．． 75, its content is 0.3 to 3% by weight,
Preferably it is 0.5 to 2% by weight.

If it is less than 0.3% by weight, the effect is insufficient, and even if it exceeds 3% by weight, no further effect can be expected.

In addition, the following components can be used in the cleaning composition of the present invention as necessary.

1) Divalent metal ion scavengers orthophosphate, birophosphate, tripolyphosphate, nitrilotriacetate, ethylenediaminetetraacetate, citrate, isocitrate, zeolite 2) Alkaline agents and inorganic salt silicates, Carbonates, sesquicarbonates, sulfates, etc.

3) Bleach, fluorescent dyes, enzymes, etc. As bleaching agents, use sodium percarbonate, sodium percarbonate, sodium sulfate, sodium chloride, hydrogen peroxide adducts, etc. As brighteners, commercially available fluorescent dyes, fragrances, Enzymes such as protease, cellulase, amylase, and lipase, blue tint agents, and the like can also be added as necessary.

In addition, components commonly used in detergents other than those mentioned above may also be used as necessary.

〔Example〕

Next, the present invention will be explained with reference to Examples, but the present invention is not limited to these Examples.

Example 1 The following recontamination prevention properties of the cleaning agents having the compositions shown in Table 1 were evaluated. The results are also shown in Table-1.

1. Test fabrics Four types of test fabrics, cotton broadcloth, T/C mixed broadcloth georgette, and nylon tricot, were each cut into 10 x 10 cm pieces (3 pieces) for each condition and introduced.

2. Soil Hydrophobic solid soil: Karpon Brasov average particle size 0.1μ Hydrophilic solid soil: Kanuma Akadama earth 200 mesh sieve passed 3. Experimental conditions Temperature: 20°C Hardness: 4°Dl+ Detergent concentration, 0. 133% dirt; carbon 0.25 g/l.

; mud 2.5g/β turbotometer 100 r, p, m, contaminated for 10 minutes;
Rinse with running water 46 Experiment method 1! Sample the specified amount of carbon and mud in a beaker, add detergent solution dissolved to the specified concentration little by little, disperse with a glass spoon, adjust the temperature, put it in the sample cup of the turbotometer, and insert the test cloth. and 100 r,p,
m for 10 minutes, rinsed with running water, press dried, and determined the re-staining prevention rate using a Nippon Heavy Shiki NO-101DP model Jtl colorimeter.

R(0) R(0)--Reflectance of raw fabric R(S) - Reflectance after contamination

Claims (1)

[Scope of Claims] 1 (A) 10 to 40% by weight of synthetic surfactant (B) 1 to 10% by weight of fatty acid salt having a carbon chain length of 10 to 22 (C) 0.3% of polycarboxylic acid polymer or its salt -3% by weight (D) 0.3-3% by weight of polyethylene glycol with an average molecular weight of 1,000-20,000 (E) 0.3-3% by weight of carboxymethyl cellulose with a degree of etherification of 0.3-0.8 Characteristic cleaning composition. 2. The cleaning composition according to claim 1, wherein the salt of the polycarboxylic acid polymer is a polyacrylate.