JPS6315899A - Detergent composition - 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 [Field of Industrial Application] The present invention relates to a cleaning composition, and more particularly to a cleaning composition that leaves washed clothes with a pleasant smell.

(Prior Art and Problems) In recent years, consumer tastes in foaming have changed considerably, and detergents with lower foaming properties have become preferred. For this reason, silicone-based antifoaming agents have come to be used, but they are relatively expensive, so attempts have been made to create low-foaming detergents by blending large quantities of fatty acid salts, which are inexpensive raw materials. (Patent Application No. 1983-83413, Patent Application No. 1983)
1-83414).

However, fatty acid salts have a serious drawback in that when they are blended in large amounts, they impart an unpleasant odor to detergents and clothing washed with the detergents. As the clothes are washed repeatedly, this odor increases and becomes even more unpleasant to the wearer.

Therefore, there has been a strong desire to develop a technique that takes advantage of the properties of fatty acid salts and overcomes the disadvantage of imparting an unpleasant odor to clothing.

[Means for solving problems]

As a result of intensive studies on this point, the present inventors have found that by simultaneously containing zeolite and sulfite together with fatty acid salts, a detergent that contains a large amount of fatty acid salts and does not leave off-odor on washed clothes can be obtained. Heading: The present invention has been completed.

That is, the present invention comprises (A) 5 to 95% by weight of a synthetic surfactant (B
) Fatty acid salt with a carbon chain length of 0 to 22 1 to 10% by weight (C
) 2 to 25% by weight of zeolite; and (D) 0.3 to 3% by weight of sulfite.

Although the mechanism of the odor-improving effect of fatty acid salts using the zeolite and sulfite of the present invention is not clear,
This is thought to be an effect due to some kind of interaction.

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 7/lz kill ether, higher fatty acid alkanolamide or its alkylene oxide adduct, other betaine type amphoteric surfactants, sulfonic acid type amphoteric surfactants, phosphoric acid Examples include ester surfactants and cationic surfactants.

The amount of synthetic surfactant in the cleaning composition of the present invention is 5
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 has a total carbon number of 10 to 95% by weight, and generally 10 to 40% by weight. 22, especially those of 12 to 18 are preferred. Examples of salts include alkali metal salts such as sodium and potassium salts, ammonium salts, and substituted 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 fatty acid salt in the cleaning composition of the present invention is 1 to 10
% by weight, preferably in the range 2-7% by weight. If it is less than 1% by weight, the effect on foam suppression is small;
If it exceeds this amount, the effect of preventing foul odors from adhering to clothing, which is the objective of the present invention, will not be sufficient.

The zeolite used in the present invention is preferably a crystalline aluminosilicate. For example, A-type and X-type zeolites are suitable. The average particle size of Zeolite I is desirably about 0.1 to 20 microns, more preferably about 0.1 to 10 microns.

The content of zeolite in the cleaning composition of the present invention is 2 to 2
5% by weight, preferably in the range 5-20% by weight. 2
If it is less than 25% by weight, there is no effect of preventing foreign odors due to interaction with sulfites, and even if it exceeds 25% by weight, no further effect can be expected.

Examples of the sulfite used in the present invention include alkali metal salts and alkaline earth metal salts, with alkali metal salts such as sodium salts and potassium salts being preferred.

The content of sulfite in the cleaning composition of the present invention is from 0.3 to
3% by weight, preferably 0.5-2% by weight. 0.3
If it is less than 3% by weight, there is no effect of preventing foreign odors, and 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 scavenger orthophosphate, pyrophosphate, tripolyphosphate, nitrilotriacetate, ethylenediaminetetraacetate, citrate, isocitrate, polyacrylate, polyacequyl carboxylate, etc. .

2) Alkaline agents and inorganic salts Silicates, carbonates, sesquicarbonates, sulfates, etc.

3) Re-staining prevention agents polyethylene glycol, polyvinyl alcohol, polyvinylpyrrolidone, carboxymethyl cellulose, etc.

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

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

The detergent dough used in the present invention may be manufactured by a known manufacturing method such as a spray drying method or a granulation method, and a detergent dough manufactured by a spray drying method is preferably used.

The cleaning material produced by the spray drying method is produced in the form of hollow particles with a particle size of approximately 50 to 2,000 μm, which are obtained by spraying an aqueous slurry of heat-resistant components such as surfactants and builders into a heated space and drying without any particular restrictions on the manufacturing conditions. Components such as fragrances, enzymes, bleaching agents, and inorganic alkali builders such as zeolite and soda carbonate may be added after the spray drying.

〔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 practical cleaning evaluation was performed on the cleaning agent having the composition shown in Table 1.

<Practical cleaning evaluation> 1 kg of cotton underwear was washed in a two-tank washing machine (pulsator type) under the following conditions.

Cotton underwear 1kg Cleaning agent concentration 0.133% Two-tank washing machine Washing 10 minutes Rinse 3 minutes Twice in tap water 25℃ Drying After drying in the sun for 5 hours on a sunny day, 30 female panelists who are particularly sensitive to smells ( Age 18-36)
Participants were asked to smell their underwear, and the odor was evaluated using the following criteria.

Odor evaluation ○ I hardly notice any odor. Δ There is a slight odor. × I can smell a lot of odor. Own ship writing procedural amendments September 6, 1986

Claims (1)

Scope of Claims: (A) 5-95% by weight of synthetic surfactant (B) 1-10% by weight of fatty acid salt with a carbon chain length of 10-22 (
A cleaning composition comprising: C) 2-25% by weight of zeolite; and (D) 0.3-3% by weight of sulfite.