JPS62223299A - Liquid 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] Industrial applications The present invention relates to a novel liquid cleaning composition.

More specifically, the present invention is particularly suitable as a cleaning agent for synthetic fibers, has an excellent flexibility imparting effect on synthetic fibers, prevents yellowing and darkening of the washed material, and can be used at room temperature as well. The present invention relates to a novel liquid detergent composition that exhibits excellent stability even at low temperatures.

Conventional technology Conventionally, combination systems of anionic surfactants and cationic surfactants have often been used in light detergents for cleaning synthetic fibers, wool, and silk, as well as in hair cleaning agents and finishing agents. For example, compositions that impart flexibility to fibers (U.S. Pat. No. 3,003,954,
No. 3,920,563, No. 3,920.565, British Patent Specification No. 1, 329.

No. 429, JP-A-53-38794, JP-A-53
-52799, etc.), and treatment agents that give a good feel to the hair (US Pat. No. 3,661,945, JP-A-52-114664, JP-A-53-6437).
Publications, etc.) are unknown. In addition, recently, compositions have been proposed in which anionic surfactants, cationic surfactants, and nonionic surfactants are appropriately combined depending on the type of fiber (Japanese Patent Laid-Open No. 152898/1989, JP-A-56-152899) C However, in all of these compositions, the flexibility imparting effect is not necessarily sufficient.

In order to improve the effect, it is necessary to further increase the total amount of cationic surfactant and anionic surfactant, but if this total amount is increased, even if the flexibility imparting effect is improved, one composition This results in a deterioration in the stability of the liquid, which causes the phenomenon of clouding at low temperatures, and also causes problems such as yellowing and darkening of the items to be washed. Therefore, it is not a preferable method to improve the flexibility imparting effect by increasing the total amount of anionic surfactant and cationic surfactant.

Problems to be Solved by the Invention Under these circumstances, the purpose of the present invention is to provide an excellent flexibility imparting effect to synthetic fibers in particular, and to prevent yellowing and darkening of washed items. The object of the present invention is to provide a liquid detergent composition that exhibits excellent stability even at low temperatures.

Means for Solving the Problems In order to achieve the above object, the present inventors have conducted extensive research and found that a certain type of Surprisingly, we discovered that when a nonionic surfactant is blended in a specific weight ratio, the flexibility imparting effect can be improved without increasing the total amount of anionic surfactant and cationic surfactant. The present invention was made based on the findings.

That is, the present invention (A) Anionic surfactant.

(B) General formula (in the formula, R1 is an alkyl or alkenyl group having 12 to 22 carbon atoms; R2 is an alkyl group having 1 to 4 carbon atoms; (C) a cationic surfactant represented by an alkyl or hydroxyalkyl group, X is a monovalent equivalent of an anion; an alkyl, hydroxyalkyl or alkenyl group, and 1
The total number of carbon atoms in both does not exceed 26, and n is 5.
containing a nonionic surfactant represented by (an integer of ~25), and the molar ratio of component (A) and component (B) is 1:2 to 2:1, (El component and component (C) The present invention provides a liquid cleaning composition characterized in that the weight ratio of

In the composition of the present invention, the anionic surfactant used as component (A) is one commonly used in detergents, such as alkylbenzenesulfonic acid.

Examples include alkali metal salts such as alkyl sulfate esters, polyoxyethylene sulfate esters, polyoxyethylene alkylphenyl sulfate esters, and olefin sulfone L fatty acids, alkaline earth metal salts, and the like. These anionic surfactants may be used alone or in combination of two or more.

In the composition of the present invention, the cationic surfactant used as component (B) is a quaternary ammonium salt represented by the general formula (R1, R2, R5, R4 and X have the same meanings as above). It is. In the general formula (1), bRl is an alkyl group or alkenyl group having 12 to 22 carbon atoms, and preferably an alkyl group or alkenyl group having 16 to 20 carbon atoms, particularly a tallow alkyl group having 16 to 20 carbon atoms. . Examples of X- include m such as chlorine ion, bromide ion, fluorine ion, and iodide ion.
The A equivalent amount of divalent ions such as individual ions and sulfate ions can be mentioned.

Next, in the composition of the present invention, a mono-long chain quaternary ammonium salt in which one of the N-substituents is a long-chain alkyl group or an alkenyl group may be used as the cationic surfactant. The effect of the present invention cannot be obtained with other cationic surfactants. One type of the cationic surfactant may be used, or two or more types may be used in combination.

In the composition of the present invention, the nonionic surfactant used as component (C) is represented by the general formula n, where R5 and R6 each have 6 carbon atoms.
an alkyl group, hydroxyalkyl group or alkenyl group of Step 4, in which the total carbon number of R5 and R6 is 26 or less, preferably in the range of 14 to 20, and n is 5 to 2
5. Preferably it is an integer in the range of 10-20. Nonionic surfactants outside these ranges are 1/'i inferior in the flexibility improvement effect of washed objects, the yellowing and darkening prevention effect, and the liquid stability of the composition at low temperatures. Further, ordinary linear linear alcohol ethoxylates and secondary alcohol ethoxylates do not have any effect on preventing yellowing or darkening of the items to be washed. That is, by using a nonionic surfactant represented by the general formula (I[) above, a composition that can satisfy the flexibility imparting performance, the ability to prevent yellowing and darkening, and the liquid stability can be obtained for the first time. Get it. One type of nonionic surfactant may be used, or two or more types may be used in combination.

In the composition of the present invention, (the molar ratio of the anionic surfactant as the component and the cationic surfactant as the component (B) is 1:2 to 2:1, preferably 1:1).
The ratio by weight of the cationic surfactant (B) and the nonionic surfactant (C) must be in the range of 1.7 to 1:0.7. :
2 to 1: 30. Preferably 1:5 to 1:2
It must be in the range of 0.

A composition in which the blending proportions of component (A), component (component) and component (C) deviate from the above ranges will not provide the above effects and will be a fake.

The total content of the anionic surfactant (A) component, the cationic surfactant (B) component, and the nonionic surfactant (C) component in the composition of the present invention is 10 to 70% in total.
The range of weight % is suitable, preferably 20 to 50 weight t.
% range.

The composition of the present invention may optionally contain, for example, a foaming agent such as a fatty acid alkanolamide, a lower alcohol, a polyhydric alcohol, a viscosity g-alignment such as a lower alkylbenzene sulfonate, ethylenediaminetetraacetate, citric acid, etc., as necessary. Sequestering agents such as salts, as well as fluorescent brighteners, dyes, fragrances, antioxidants, emulsifiers, bactericidal agents, enzymes, and the like can also be included.

Effects of the Invention The liquid cleaning composition of the present invention contains an anionic surfactant, a cationic surfactant such as a mono-long chain quaternary ammonium salt, and a specific nonionic surfactant in a predetermined ratio. Therefore, it has an excellent flexibility imparting effect on synthetic fibers, can prevent yellowing and darkening of washed items, and has good stability not only at room temperature but also at low temperatures. It has excellent characteristics such as M, and is particularly suitable for use as a cleaning agent for synthetic fibers.

Example Next, the present invention will be explained in more detail with reference to Examples.

The performance of the cleaning composition was evaluated according to the following test method.

(1) After the low-temperature stable composition 100- was left in a constant temperature room at -5° C. for one week, its appearance was visually judged and evaluated as 0: transparent and uniform, and X: cloudy.

(2) Effect of imparting flexibility to synthetic fibers In a small reversible washing machine with a capacity of about 10%, acrylic jersey cloth was placed at a bath ratio of 50 times the 25°C washing liquid (composition 0.25% by weight aqueous solution) SZ. Enter f'L.

After washing for 10 minutes, it was dehydrated to a moisture content of 100%, and then rinsed twice with 5 tons of tap water.

After drying in the shade and leaving it in a constant temperature and humidity room at 25°C and 65% RT for 2 days, a panel of 10 people performed a sensory evaluation based on the following criteria, and the average value was taken as the flexibility evaluation score. .In order to pass the product, a score of 3 or more is required.

1 point: Not soft 2 points: Slightly soft 3 points; Soft 4 points: Kana soft 5 points: Very soft (3) Yellowing and darkening prevention effect on synthetic fibers (2)
), and the cycle of washing for 10 minutes → rinsing for 3 minutes, twice → drying was repeated 20 times.

The evaluation was carried out as follows, and ◯ was considered a pass.

○: No yellowing or darkening observed ×: Yellowing or darkening observed Also, each abbreviation in Table 1 means the compound shown below.

5 oap sodium nioleate (average molecule i:
305) Examples 1-10. Comparative Examples 1 to 9 As shown in Table 1, various anionic surfactants, various cationic surfactants, and nonionic surfactants (
Various cleaning compositions were prepared using Nonion A) and varying the blending ratio. These compositions were investigated for their flexibility imparting effect and yellowing and darkening prevention effect on low temperature stability 1 synthetic fibers. These results are shown in Table 1.

Examples 11 to 15, Comparative Examples 10 to 20 LAS'-Na f was used as the anionic surfactant, cIBMc was used as the cationic surfactant, and various types as shown in Table 2 were used as the nonionic surfactant. Various liquid cleaning compositions were prepared with the mixing ratios shown in Table 2. Regarding these compositions, their low temperature stability,
The effect of imparting flexibility to synthetic fibers and the effect of preventing yellowing and darkening were investigated. These results are shown in Table 2.

Claims (1)

[Claims] 1 (A) Anionic surfactant (B) General formula ▲ Numerical formula, chemical formula, table, etc. ▼ (In the formula, R_1 is an alkyl or alkenyl group having 12 to 22 carbon atoms, R_2 is a carbon Alkyl or hydroxyalkyl group or benzyl group of numbers 1 to 4, R_3 and R_4
is an alkyl or hydroxyalkyl group having 1 to 4 carbon atoms,
X^- is the monovalent equivalent of an anion) Cationic surfactant represented by (C) General formula ▲ Numerical formula, chemical formula, table, etc. ▼ (R_5 and R_6 in the formula each have 6 to 6 carbon atoms 14 alkyl, hydroxyalkyl or alkenyl group, the total number of carbon atoms in both does not exceed 26, n
is an integer from 5 to 25), and the molar ratio of component (A) and component (B) is 1:2 to 2:1, and component (B) and ( C) A liquid cleaning composition characterized in that the weight ratio of the components is in the range of 1:2 to 1:30.