JPS61275397A - Detergent composition for dry cleaning - 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 detergent composition for dry cleaning, and more particularly to a detergent composition for dry cleaning that has excellent cleaning power and anti-recontamination effect.

[Conventional technology]

In dry cleaning that uses petroleum-based solvents such as halogenated hydrocarbons such as tetrachlorethylene, trichlorethylene, trichloroethane, and trichlorotrifluoroethane, or paraffins, naphthenes, and aromatic hydrocarbons, water-soluble stains and solid stains are removed. Various activators are used for this purpose. Detergent compositions for dry cleaning generally contain a surfactant (5 to 80% by weight of the compounded composition for convenience of use), a dry cleaning solvent, a viscosity reducing agent, and a rust preventive. It is a liquid cleaning composition containing a cleaning agent and the like, and when used, this liquid cleaning composition is diluted to a ratio of 0.1 to 5% with respect to the dry cleaning solvent.

In recent years, due to the desire to shorten and streamline the dry cleaning process, cleaning methods that simultaneously perform softening and antistatic finishing processes using a single cleaning agent have become widespread, and the use of such finishing agents Cationic activators are used as

A cationic activator with an anionic counterion of para-toluenesulfonic acid. For example, alkyldimethylhydroxyethylammonium paratoluenesulfonate does not generate any off-odor when heated during solvent distillation and has excellent antistatic effects, making it suitable for dry cleaning. (Japanese Patent Publication No. 51-6688).

[Problem that the invention seeks to solve]

However, the dry cleaning detergents using the above-mentioned cationic activators have poor cleaning power, especially against sebum stains, and an improvement has been desired.

[Means for solving problems]

The present inventors conducted extensive research on enhancing the detergency of sebum stains with a cationic activator whose counterion is an anion group of para-toluenesulfonic acid, and found that a cationic activator, a nonionic activator, and a fatty acid were mixed in a specific ratio. The present inventors have discovered that this can be achieved by using the following methods.

That is, the present invention provides (a) General formula (1) (wherein R4 is an alkyl group having 8 to 22 carbon atoms, R2 is an alkyl group having 1 to 22 carbon atoms, hydroxyethyl or hydroxypropyl group, and R3+R4 is a carbon A number of 1 to 3 alkyl groups, hydroxyethyl or hydroxypropyl groups, and at least one of R3 and R is a hydroxyethyl or hydroxypropyl group.Y is an ethylene or propylene group, m is O or 1, and xo represents an anion group of para-toluenesulfonic acid. , the weight ratios of components (a), (b) and (c) are point A (70,25,5), point B (30°65.5), point C (30,・5.65)
, point D (70, 5, 25).

If the weight ratio of components (a), (b), and (c) is outside the above range, both the detergency against sebum stains and the recontamination prevention power will be reduced.

In the quaternary ammonium salt represented by the general formula (1) used in the present invention, those in which the number of carbon atoms in L is less than 8 or more than 22 are undesirable because they cause deterioration in performance, especially antistatic effect.

Preferred quaternary ammonium salts include stearyldimethylhydroxyethylammonium paratoluenesulfonate, palmityldimethylhydroxyethylammonium paratoluenesulfonate, stearoylaminoethyldimethylhydroxyethylammonium paratoluenesulfonate, dilauryldihydroxyethylammonium paratoluenesulfonate, stearyldimethyl Hydroxypropylammonium para-toluenesulfonate, coconut or beef tallow dimethylhydroxyethylammonium paratoluenesulfonate, coconut or beef tallow dimethylhydroxyethylammonium paratoluenesulfonate, coconut or beef tallow dimethylhydroxypropylammonium paratoluenesulfonate, myristyl dihydroxyethylhydroxypropylammonium Examples include paratoluenesulfonate.

The fatty acids used in the present invention are preferably linear or branched saturated or unsaturated fatty acids having 2 to 22 carbon atoms, and specific examples include acetic acid, butyric acid, caproic acid, caprylic acid, capric acid, lauric acid, and myristic acid. Examples include palmitic acid, stearic acid, oleic acid, linoleic acid, isostearic acid, and the like. Among these, fatty acids having 12 to 18 carbon atoms are particularly preferred.

Examples of the nonionic activator used in the present invention include those shown in 1) to 5) below.

1) Polyoxyethylene alkyl or alkenyl ether having an average carbon number of 10 to 20 alkyl groups or alkenyl groups, to which 1 to 20 moles of ethylene oxide are added 2) Having an average carbon number of 6 to 12 alkyl groups, 1-20
Polyoxyethylene alkylphenol ether to which mol of ethylene oxide has been added 3) Higher fatty acid alkanolamide or its alkylene oxide adduct R represented by the following general formula.

(In the formula, R6 is an alkyl group or alkenyl group having 10 to 20 carbon atoms, R6 is H or CH3, and 7□ is 1
An integer of ~3, 1 is an integer of O~3. ) 4) Fatty acid glycerin monoester consisting of a fatty acid with an average carbon number of 10-20 and glycerin or its ethylene oxide adduct 5) Among sucrose fatty acid esters consisting of a fatty acid with an average carbon number of 10-20 and sucrose 1), 2) , 3) are particularly preferred.

The weight ratio of the three components (a), ('b), and (c1) is within the range surrounded by points A, B, C, and D on the triangular diagram shown in FIG. Point E (65,25,10), point F (40,50°10), point G (40,35,25), point H (65,1
0,25), and the total content of the three components is preferably 10 to 70%, more preferably 10 to 50%.

In addition to the above-mentioned essential components, the dry cleaning detergent composition of the present invention contains a dry cleaning solvent as a balance agent. The dry cleaning solvent to be used is not particularly limited, and the following are representative examples. That is, so-called petroleum solvents containing tetrachlorethylene, trichlorethylene, trichloroethane, trifluorotrichloroethane, paraffin (boiling point 120 to 220°C), naphthene and/or aromatic hydrocarbons, and also ordinary dry cleaning detergents. Examples include lower alcohols such as methanol, ethanol, isopropanol, butanol, polyhydric alcohol ethers such as butyl cellosolve, and water, which are incorporated into the agent composition.

The dry cleaning detergent composition of the present invention is preferably diluted with a dry cleaning solvent to a concentration of 0.02 to 4% before use. Dry cleaning washing machines equipped with automatic metering devices for cleaning compositions require that the cleaning compositions have low viscosity and good storage stability, so dry cleaning solvents and other solvents are used. It is preferable to blend an appropriate amount of one or more of lower alcohols, polyhydric alcohol ethers, water, etc.

〔Effect of the invention〕

The detergent composition for dry cleaning of the present invention has a ridge-like structure, and exhibits excellent detergency against sebum stains and recontamination prevention power.

〔Example〕

EXAMPLES Hereinafter, the present invention will be described in detail with reference to Examples, but the present invention is not limited to these Examples.

Examples 1-15. Comparative Examples 1 to 8 Compositions shown in Tables 1 and 2 were prepared, and their detergency and re-contamination prevention ability for artificially contaminated cloth were examined by the following method. The results are shown in Tables 1 and 2.

1 extraction of bloody armpits (1) Cleaning test method Place contaminated cloth and white cloth for recontamination evaluation (wool, cotton) in 100n+1 perchlorethylene containing 0.5% by volume of detergent composition for dry cleaning, and place in Suflabo. meter(
Wash at 25°C for 10 minutes using Toyo Seiki).

(2) Evaluation of oil composition, detergency, and anti-recontamination ability of artificially contaminated fabrics <Oil composition of artificially contaminated fabrics> Cottonseed oil 60% Cholesterol 10% Odic acid 10% Palmitic acid 10% Liquid and solid paraffin 10% The detergency and recontamination prevention ability were evaluated using a self-recording colorimeter (manufactured by Shimadzu Corporation) by measuring the reflectance of the original cloth before contamination (carbon black was mixed in as an indicator by the usual method) and the contaminated cloth after cleaning. ) Measured at (550m) Cleaning rate (%) according to the following equation
and the recontamination rate (%).

R(o) R(o) = reflectance of original fabric R(s) = reflectance before cleaning R(-) - Reflectance after cleaning

[Brief explanation of drawings]

FIG. 1 is a triangular diagram showing the composition of the three components (a), (b), and (c).

Claims (1)

[Claims] 1. (a) General formula (1) ▲There are numerical formulas, chemical formulas, tables, etc.▼...(1) (In the formula, R_1 is an alkyl group having 8 to 22 carbon atoms, R_2
is an alkyl group having 1 to 22 carbon atoms, hydroxyethyl or hydroxypropyl group, R_3 and R_4 are an alkyl group having 1 to 3 carbon atoms, hydroxyethyl or hydroxypropyl group, and at least one of R_3 and R4 is hydroxy Ethyl or hydroxypropyl group. Further, Y represents an ethylene or propylene group, m represents a number of 0 or 1, and X^■ represents an anion group of para-toluenesulfonic acid. ), (b) a fatty acid, and (c) a nonionic activator, and the weight ratio of components (a), (b), and (c) is 1st.
Point A (70, 25, 5), point B (3
0, 65, 5), point C (30, 5, 65), point D (70
, 5, and 25). 2. The detergent composition for dry cleaning according to claim 1, wherein the total content of the three components (a), (b) and (c) is 10 to 70% by weight. 3. Claim 1, wherein the nonionic surfactant is selected from the group consisting of polyoxyethylene alkylphenol ether, polyoxyethylene alkyl or alkenyl ether, and higher fatty acid alkanolamide.
A detergent composition for dry cleaning as described in 1.