JPH10219281A - Detergent composition for hair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject composition that little irritates skin, shows good foaming with excellent creaminess of the foam and reveals excellent conditioning effect after washing by formulating a higher fatty acid salt, a specific ionic surfactant, a higher fatty acid alkanolamide and a cationic polymer. SOLUTION: This objective detergent composition for hair comprises (A) 1-60wt.% of a salt of higher fatty acid (for example, lauric acid, (B) 1-20wt.% of an amide group-containing two chains and two polar groups-bearing anionic surfactant for example, N,N'-bis(2-laurylamidoethyl)ethylenediamine-N,N'-di(sodioacetate), (C) 1-8wt.% of a higher fatty acid alkanolamide (for example, lauric acid diethanolamide and (D) 0.01-5wt.% of a cationic polymer (for example, cationic cellulose). In addition, individual components are preferably formulated so that following relation may be satisfied: the components A/the component (B+C)=1/5-5/1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detergent composition having low skin irritation, good foaming, excellent foam creaminess, and excellent conditioning effect after washing.

[0002]

2. Description of the Related Art Hitherto, a hair cleaning composition which has excellent foaming and foam creaminess and a good conditioning effect after washing has been studied. For example,
In order to improve the feeling of rinsing during hair washing, it has been attempted to blend a cationic polymer such as cationic cellulose with a normal (single-chain, one-polar group-containing) anionic surfactant which is a main ingredient of a hair washing agent, It has been found that this formulation improves the rinsing feel. This is because an anionic surfactant for hair washing such as polyoxyethylene lauryl ether sulfate or alkyl sulfate forms a complex salt with a cationic polymer at the time of rinsing and is adsorbed on the hair. On the other hand, the blending of the cationic polymer has disadvantages such as hardening of the hair at the time of rinsing or finishing. Therefore, recently, a hair cleansing agent containing an amphoteric surfactant and a specific amphoteric polymer has been studied. When this is used, the conditioning effect after washing is good, but the foaming and the creaminess of the foam are not sufficiently satisfied. In order to solve these problems, a combination of an amphoteric surfactant, a quaternary ammonium, a carboxyl group-containing anionic surfactant (Japanese Patent Laid-Open No. 62-288694), a nonionic surfactant, a quaternary ammonium And combinations of carboxyl group-containing anionic surfactants (JP-A-63-317596 and JP-A-8-325595). However, these cleaning agents all foamed, and were not satisfactory in terms of foam creaminess. In addition, skin irritation was not sufficient. As described above, a hair cleaning composition having low skin irritation, good foaming, excellent foam creaminess, and a good conditioning effect after washing has not yet been developed. Was rare.

[0003]

The present inventor has made intensive studies to improve such disadvantages of the prior art, and as a result,
It has been found that the above-mentioned drawbacks can be remarkably improved by blending a higher fatty acid salt, a specific amide group-containing two-chain bipolar group-containing anionic surfactant, a higher fatty acid alkanolamide, and a cationic polymer. Reached. That is, an object of the present invention is to provide a hair cleaning composition having low skin irritation, good foaming, excellent foam creaminess, and a good conditioning effect after washing.

[0004]

According to the first aspect of the present invention, there are provided (A) 1 to 60% by weight of a higher fatty acid salt, and (B) an anionic surfactant containing an amide group-containing two-chain / bipolar group-containing anionic surfactant. 20% by weight, (C) 1 to 8% by weight of higher fatty acid alkanolamide, (D) 0.01 to 5% by weight of cationic polymer, and the weight ratio of (A) / [(B) + (C)] Is 1/10
It is a cleaning composition characterized by being 10/1.

[0005]

Next, an embodiment of the present invention will be described. The higher fatty acid salt of the component (A) in the present invention has a hydrophobic group having 8 to 20 carbon atoms and has a monovalent or divalent alkali metal ion, ammonium ion or organic ammonium ion as a counter ion. . One or two or more of these are used. The content in the present composition is 1 to 60% by weight. If it is less than 1% by weight, sufficient washing effect and foaming property cannot be obtained, and if it exceeds 60% by weight, the conditioning effect is reduced.

In the present invention, the two-chain anionic surfactant containing a bipolar group as the component (B) has an amide group-containing long-chain hydrophobic group having 18, 16, 14, 12, 10 or 8 carbon atoms. It suffices if the polar group has a carboxyl group, a sulfonic acid group, or a sulfate group, and the connecting chain has a molecular structure in which the alkylene chain has 2 to 6 carbon atoms.
As an example of the anionic surfactant having a two-chain dipolar group as the component (B), N, N′-bis [2-lauramidoethyl) ethylenediamine-N, N′-di (sodium acetate) can be given. A mixture with a homologue having a different hydrophobic group in the molecular structure of the compound is also blended within the scope of the present invention. As the counter ion used here, a monovalent or divalent alkali metal ion, ammonium ion or organic ammonium ion is applied. However, basic amino acids such as lysine and arginine also correspond to the organic ammonium ion. Further, as an example of the anionic surfactant having a two-chain dipolar group as the component (B), N, N'-bis [2-myristoylamidoethyl) ethylenediamine-
N, N'-di (sodium acetate), N, N'-bis [2
-Palmitoiramidoethyl) ethylenediamine-N,
N'-di (sodium acetate), N, N'-bis [2-lauramidoethyl) ethylenediamine-N, N'-di (sodium propionate), N, N'-bis [2-myristoylamidoethyl) Ethylenediamine-N, N'-di (sodium propionate), N, N'-bis [2-palmitoiramidoethyl) ethylenediamine-N, N'-
Di (sodium propionate), N, N'-bis (lauroylamide) ethane-N, N'-di (sodium acetate), N, N'-bis (myristoylamide) ethane-
N, N'-di (sodium acetate), N, N'-bis (palmitoylamide) ethane-N, N'-di (sodium acetate), N, N'-bis (lauroylamide) ethane-
N, N'-di (sodium propionate), N, N'-
Bis (myristoylamide) ethane-N, N′-di (sodium propionate), N, N′-bis (palmitoylamido) ethane-N, N′-di (sodium propionate), N, N′-bis ( Lauroylamide) butane-
N, N'-di (potassium acetate), N, N'-bis (myristoylamide) butane-N, N'-di (potassium acetate), N, N'-bis (palmitoylamide) butane-
N, N'-di (potassium acetate), N, N'-bis (lauroylamide) ethane-N, N'-di (potassium ethanesulfonate), N, N'-bis (myristoylamide)
Butane-N, N′-di (potassium ethanesulfonate),
N, N'-bis (palmitoylamide) ethane-N,
N′-di (sodium ethanesulfonate). As the anionic surfactant containing a two-chain dipolar group as the component (B) in the present invention, the long-chain hydrophobic group containing an amide group has 14 or 12 carbon atoms, and the polar group is a carboxyl group or a sulfonic acid. One of the groups
Compounds in which the connecting chain has 2 carbon atoms are shown. In the present invention, as the particularly preferred anionic surfactant containing a two-chain dipolar group as the component (B), the long-chain hydrophobic group containing an amide group has 14 or 12 carbon atoms and has a carboxyl group as a polar group. And compounds in which the connecting chain has 2 carbon atoms. The content in these compositions is 1-2.
0% by weight. If it is less than 1% by weight, no synergistic effect with soap is exhibited, and the foam lacks creaminess. 20% by weight
If it exceeds, the conditioning effect is reduced.

[0007] The higher fatty acid alkanolamide of the component (C) in the present invention is a condensate of a higher fatty acid having 10 to 18 carbon atoms and an alkanolamine, which is generally used as a raw material for alkanolamine cosmetics. Is applied. The content of the component (C) is 1 to 8% by weight.
It is. If the amount is less than 1% by weight, the intermolecular interaction with the higher fatty acid salt as the component (A) and the amide group-containing two-chain / bipolar group-containing anionic surfactant as the component (B) does not function sufficiently, and Lacks creaminess and detergency. If it exceeds 20% by weight, the conditioning effect is reduced.

The following are examples of the cationic polymer of the component (D) in the present invention. That is, cationic cellulose, cationic starch, diallylammonium salt / acrylamide copolymer, quaternized polyvinylpyrrolidone derivative, quaternized vinylpyrrolidone /
Vinylimidazole polymer, polyglycol / amine condensate, quaternized collagen polypeptide, polyethyleneimine, cationic silicone polymer, adipic acid / dimethylaminohydroxypropyldiethylenetriamine copolymer, polyaminopolyamide, cationic chitin derivative, cationic guar gum and And quaternized polymers. The content of the component (C) is 0.01 to 5% by weight. If it is less than 0.01% by weight, a sufficient conditioning effect cannot be obtained, and if it exceeds 5% by weight, a conditioning effect corresponding thereto cannot be obtained.

In each component of the present invention, (A) /
A weight ratio of [(B) + (C)] of 1/10 to 10/1 is necessary in terms of skin irritation, foaming, foam creaminess, and conditioning effect after washing. Furthermore, (A) /
When the weight ratio of [(B) + (C)] is 1/5 to 5/1, those effects are further improved.

[0010] The detergent composition of the present invention has the composition as described above, but if necessary, other surfactants, emulsifying auxiliaries,
Flavors, colorants, preservatives, pigments, and the like can be appropriately blended within a range that achieves the object of the present invention. The detergent composition of the present invention is applied to a product for cleaning skin or hair, such as a facial cleanser, a liquid facial cleanser, a body shampoo, a shampoo, and a cleansing cosmetic for removing makeup.

[0011]

EXAMPLES The present invention will be described below with reference to examples, but the present invention is not limited to these examples. In addition, the compounding amount is weight%. Detergent compositions having the compositions shown in the following table were prepared, and each was evaluated for feel to the hair and skin irritation. The results are shown in the table below. The formula weight% shown in the table is the value of the active ingredient of the active agent.

(Evaluation method) The feel of the hair was measured by 20 expert panelists using 20 g (15c) of the hair of a healthy Japanese woman.
1 g of the cleaning agent was applied to m), and was evaluated according to the following criteria at the time of lathering for 1 minute, the time of rinsing, and the time of drying with a dryer. The results are shown in the following table from the average score of 20 subjects according to the following criteria. Evaluation of skin irritation
Five cleaning compositions were applied to healthy guinea pig skin four times, and the fourth reaction was evaluated according to the following table. The results are shown in the table below from the average score of 5 animals according to the following criteria.

(Criteria) (1) Feeling at the time of whipping Evaluation and score: No squeak, very good finger passage, very large creaminess (score 4) No squeak, good finger passage, large creamy (score 3) A. Creaminess is slightly poor (score 2). Squeaking is strong, fingering and creaminess are poor (score 1). Average score and judgment: Average score 3.1 or more (（) Average score 2.5 to 3.0 (○) Average score 1.5 to 2.4 (△) Average score 1.0 to 1.4 (×) (2) Feeling when rinsed A. Evaluation and score: No squeak, very smooth (score 4) No squeak, smooth (score 3) Slight stiffness, slightly poor smoothness (score 2) Strong squeak, poor (score 1) Average score and judgment: Average score 3.1 or more (（) Average score 2.5 to 3.0 (○) Average score 1.5 to 2.4 (△) Average score 1.0 to 1.4 (×) (3) Feeling after drying the hair A. Evaluation and score: good finger passing, very smooth (score 4) good finger passing, smooth (score 3) poor finger passing, slightly poor smoothness (score 2) poor finger passing (score 1) B. Average score and judgment: Average score 3.1 or more (（) Average score 2.5 to 3.0 (○) Average score 1.5 to 2.4 (△) Average score 1.0 to 1.4 (×) (4) Skin irritation A. Evaluation and score: Non-irritant (score 5) Minor irritant (score 4) Mild irritant (score 3) Medium irritant (score 2) Strong irritant (score 1) Average score and judgment: Average score 3.1 or more (（) Average score 2.5 to 3.0 (○) Average score 1.5 to 2.4 (△) Average score 1.0 to 1.4 (×)

Examples 1 to 21 and Comparative Examples 1 to 14 Tables 1 to 4 show the compositions of the cleaning compositions (test samples) according to the present invention. The formulations shown here show the following: (1) Higher fatty acid sodium as component (A) to be blended A1: Sodium laurate (2) Two-chain dipolar group-containing anionic surfactant as component (B) to be blended B1: N, N'-bis ( Lauroylamide) ethane-
N, N'-di (sodium sulfonate) B2: N, N'-bis (lauroylamide) ethane-
N, N'-di (sodium propionate) (3) Higher fatty acid alkanolamide of component (C) blended C1: lauric acid diethanolamide (4) Cationic polymer of component (D) blended D1: Cationic JR

[0015]

[Table 1]

[0016]

[Table 2]

[0017]

[Table 3]

[0018]

[Table 4]

Note that R in the above table is (A) / [(B)
+ (C)]. From the results in Tables 1 to 4, it can be seen that when the hair was washed using the hair cleansing composition of the present invention, all of the above evaluation items were excellent. On the other hand, it can be seen that the performance of the cleaning composition of the comparative example lacking any one of the components of the cleaning composition for hair of the present invention is much worse than that of the cleaning composition of the present invention.

[0020]

As described above, the present invention provides a hair cleansing composition having low skin irritation, good foaming, excellent creamy feeling of foam, and excellent conditioning effect after washing. it is obvious.

Claims (2)

[Claims] (A) 1 to 60% by weight of a higher fatty acid salt,
(B) 1 to 20% by weight of an amide group-containing two-chain / bipolar group-containing anionic surfactant, (C) 1 to 8% by weight of higher fatty acid alkanolamide, (D) cationic polymer 0.01 to
A cleaning composition containing 5% by weight and a weight ratio of (A) / [(B) + (C)] is 1/10 to 10/1. 2. (A) 5 to 60% by weight of a higher fatty acid salt,
(B) 1 to 20% by weight of an amide group-containing two-chain / bipolar group-containing anionic surfactant, (C) 1 to 8% by weight of higher fatty acid alkanolamide, (D) cationic polymer 0.01 to
A cleaning composition comprising 5% by weight, wherein the weight ratio of (A) / [(B) + (C)] is 1/5 to 5/1.