JPS61268800A - Powdery detergent composition containing soap - Google Patents

Abstract

(57) [Summary] 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 soap-containing powder cleaning composition containing a higher fatty acid salt as a cleaning main ingredient.

[Conventional technology]

Washingawa Sekiken is used as a household and commercial cleaning agent. For commercial use, it is mainly used to remove stains from the collars and cuffs of Y-shirts, but since soap alone has insufficient cleaning power, conventional composite surface kens use soap as the main cleaning agent and non-ionic detergents. Contains surfactants, builders, etc.

For example, JP-A-57-30799 describes a detergent composition containing 1 to 30% soap mainly composed of unsaturated higher fatty acid salts, 2 to 30% synthetic surfactant, and up to 50% bilgoux salt. has been done.

[Problem that the invention seeks to solve]

However, when a nonionic surfactant is blended into soap, there is a problem that caking occurs during product storage.

[Means for solving problems]

As a result of intensive study to solve the above-mentioned problems without reducing cleaning power, the inventors of the present invention have found that a specific nonionic surfactant and a water-soluble polymer compound are blended into soap in a specific ratio. The inventors have discovered what they need to do and have come up with the present invention.

That is, the present invention provides a cleaning composition containing a higher fatty acid salt (A) as a main active ingredient, which contains the following components (B) and (C), and has a weight ratio of (B)/(A) of 0.01. ~0.
06, and (C)/(A) has a weight ratio of 0. O1~0
．． 1, (B) a nonionic surfactant with an HLB of 10 to 15, and (C) a water-soluble polymer compound with a molecular weight of 3,000 to 20,000. It is something.

As the higher fatty acid salt used as the main cleaning component in the present invention, salts of natural fatty acids 08 to 24 obtained by decomposing and fractionating animal or vegetable oils and fats, particularly sodium salts, are used. Examples of natural fats and oils that are raw materials for natural fatty acids include animal fats and oils such as beef tallow, lard, bone oil, fish oil, and whale oil, and vegetable oils such as palm oil, palm kernel oil, rice bran oil, soybean oil, cottonseed oil, and coconut oil. . These raw materials are used alone or in a mixture for decomposition, or the fatty acids of their respective derivatives are used in a mixture.

The composition of higher fatty acids is not particularly limited, but 3
A mixture containing 0 to 40% by weight (hereinafter abbreviated as %) of sodium C0 to C14 saturated fatty acids, 55 to 65% of sodium 00 to C14 unsaturated fatty acids, and 0 to 10% sodium C0 to C14 saturated fatty acids. However, it is particularly suitable from the viewpoint of cleaning performance at low temperatures.

The amount of higher fatty acid salt blended is usually selected in the range of 10 to 90%, but the best results in terms of both caking prevention and cleaning performance can be obtained in the range of 30 to 70%.

As the nonionic surfactant of component (B) used in the present invention, those having an HLB of 10-15 are used, and surfactants 811 to 13 are particularly preferred.

Specific examples of nonionic surfactants include polyoxyethylene alkylphenyl ether, polyoxyethylene alkyl ether, polyoxyethylene alkenyl ether, long chain fatty acid monoethanolamide, and long chain fatty acid jetanolamide.

The blending amount of the above nonionic surfactant is 1 to 6% by weight, more preferably 1 to 4% by weight based on the higher fatty acid salt.

The water-soluble polymer compound of component (C) has a molecular weight of 3.0.
00 to 20.000 is used, but especially 3.0
00 to 9.000 is preferred.

Specific examples of water-soluble polymer compounds include homopolymers of acrylic acid and/or methacrylic acid, namely polyacrylic acid, polymethacrylic acid, and acrylic acid-methacrylic acid polymers (hereinafter referred to as acrylic acid-methacrylic acid polymers for convenience). (referred to as a homopolymer) or a copolymer of acrylic acid or methacrylic acid and a monomer copolymerizable therewith, or a salt thereof. Examples of the monomer include maleic anhydride, itaconic acid, fumaric acid, methyl vinyl ether, ethylene, propylene, styrene, pyrrolidone carboxylic acid, and the like. °゛Although these polymers may be used in the acid state, it is generally preferable to use them in the form of neutralized salts. Examples of salts include sodium, potassium, ammonium, monoethanolamine, jetanolamine, etc. , triethanolamine, and other salts.

Among these, sodium polyacrylate having a molecular weight of a, ooo to 9.000 is particularly preferred.

These water-soluble polymer compounds have a ratio of 1 to higher fatty acid salts.
-10% by weight, preferably 1-5% by weight.

In addition to the above-mentioned essential ingredients, the cleaning composition of the present invention contains inorganic builders such as carbonates, silicates, sulfates, phosphates, and aluminosilicates, sodium ethylenediaminetetraacetate, sodium nitrilotriacetate, and citric acid. organic virgoos, such as soda,
Recontamination prevention agents such as carboxymethyl cellulose and polyethylene glycol, fluorescent agents, colorants, disinfectants, enzymes,
You can add aromatics, etc.

Among organic building blocks, sodium ethylenediaminetetraacetate is particularly effective in enhancing detergency, and the composition contains 0.1 to 5
%, preferably 0°, 1 to 2%.

〔Effect of the invention〕

The cleaning composition of the present invention does not cause caking during product storage, and has excellent cleaning power despite containing a small amount of nonionic surfactant.

Furthermore, when the manufacturing process is performed by kneading the raw materials and then pulverizing them, there is an advantage that the pulverizability does not deteriorate.

〔Example〕

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

Example 1 The compositions shown in Table 1 were prepared by adding polyoxyethylene alkyl ether to higher fatty acid sodium, sodium polyacrylate, and the like.

For these cleaning compositions, T/
The collar cloth of the Y-shirt of C was washed, and the degree of stain removal was evaluated visually.

(n=10) Cleaning method Cleaning agent concentration: 0.15% by weight Washing water: 8°Dll Temperature: 40°C Bath ratio: 10 sheets/1.000ml Washing liquid Washing machine: Turbotometer (rotation speed 12 Orpm+) Washing time : 10 minutes Rinse: 5 minutes The results are shown in Table 1.

The breaking load (g) of the above detergent composition was measured by the method shown below to evaluate the anti-caking property. (n=
2) The smaller the breaking load, the better the prevention of caking.

Measuring method Sample weight: 15g Weight: 1kg Time: 3 minutes Temperature: normal temperature Measuring device: Rheometer The results are shown in Table 1.

Example 2 The compositions shown in Table 2 were prepared by adding sodium polyacrylate to higher fatty acid sodium, polyoxyethylene alkyl ether, and the like.

The detergency and anti-caking properties of these detergent compositions were evaluated in the same manner as in Example 1.

The results are shown in Table 2.

Claims (1)

[Claims] 1. A cleaning composition containing higher fatty acid salt (A) as the main active ingredient, containing the following components (B) and (C), (
The ratio of B)/(A) is 0.01 to 0.06 by weight, (
A cleaning composition characterized in that the ratio of C)/(A) is 0.01 to 0.1 by weight. (B) A nonionic surfactant with an HLB of 10 to 15 (C
2.) The cleaning composition according to claim 1, wherein the water-soluble polymer compound 2 having a molecular weight of 3,000 to 20,000 and the higher fatty acid salt (A) are blended in an amount of 30 to 70% by weight. 3. The composition of higher fatty acid salt (A) is C_1_2 to C_1
_4 saturated fatty acid sodium 0-10% by weight, C_1_
The cleaning composition according to claim 1, which contains 30 to 40% by weight of sodium saturated fatty acids of C_6 to C_2_4 and 55 to 65% by weight of sodium unsaturated fatty acids of C_1_6 to C_2_4. 4. The water-soluble polymer compound (C) has a molecular weight of 3,000 to 9
2. The cleaning composition according to claim 1, which is sodium polyacrylate of 1,000%.