JPH0794369B2 - Hair treatment composition - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair treatment composition for imparting hair / strain to hair.

[0002]

2. Description of the Related Art Among the problems concerning the hair, there are not a few problems concerning the low elasticity of the hair, such as lack of elasticity / strain and lack of volume. In order to satisfy the desires of those who have these concerns, a number of hair treatment agents containing a balm / strain-imparting agent and a conditioning agent have been conventionally used. However, most of these are effective due to the adsorption of the agent on the hair surface, etc., and they are dropped during hair washing, and therefore must be constantly treated, which is a troublesome task. It was Further, attempts have been made to penetrate the inside of the hair with the active ingredient to exert the effect, but the penetration into the hair is poor, and it takes a long time for the treatment, and the effect is not sufficient.

[0003]

Under such circumstances, the present inventor has conducted earnest research and, as a result, if a treatment with a reducing agent and a sulfonic acid having a tetralin or indane skeleton is combined, a short treatment time can be obtained. The inventors have found that the elasticity of the hair can be improved, and that the hair can have a good elasticity / strain, and that this elasticity is maintained for a long period of time.

That is, the present invention provides the following components (A) and (B), (A) reducing agent (B) general formula (1)

[Chemical 2] [In the formula, at least one of A ^{1 to} A ⁴ represents a sulfone group, and the other represents a hydrogen atom, a halogen atom, a hydroxyl group, a lower alkyl group, an acyl group, a carboxyl group, an amino group or a lower alkoxy group, n represents a number of 1 or 2] or a salt thereof, such as tetralin sulfonic acids or indan sulfonic acids, to provide a hair treatment composition.

In the hair treatment composition of the present invention, the reducing agent (A) cleaves cystine in the hair and swells the hair, so that the tetralin sulfonic acid or the indan sulfonic acid (B) is rapidly absorbed in the hair. It acts to penetrate. Such reducing agents (A) include thioglycolic acid and salts thereof (preferred salts are ammonium salts, alkali metal salts such as sodium salts and potassium salts, and alkaline earth metal salts such as calcium salts), cysteine and Its salts (preferred salts are the hydrochlorides), N
-Acetyl-L-cysteine and salts thereof (preferred salts are hydrochlorides), sulfites and bisulfites (preferred salts are alkali metal salts such as ammonium salts, sodium salts, potassium salts and alkali salts such as calcium salts) Earth metal salts) and the like. this house,
Particularly, thioglycolic acid, ammonium thioglycolate, N-acetyl-L-cysteine, and sodium bisulfite are preferable.

The reducing agent (A) may be blended with tetralin sulfonic acids or indane sulfonic acids (B) into a single hair treatment composition, or the first agent containing the reducing agent (A). It is also possible to separately prepare it with a second agent containing tetralin sulfonic acids or indane sulfonic acids (B).

The reducing agent (A) is contained in the hair treatment composition or the first agent in an amount of 0.1 to 10% by weight (hereinafter simply indicated as%).
It is preferable to mix the composition in an amount of about 1 to 7%, particularly preferably 1 to 7%. If it is less than 0.1%, no sufficient effect is obtained, and 10
If it is blended in excess of%, no further improvement in the effect is observed and only damage to the hair is increased. In addition, an alkaline agent such as aqueous ammonia, ethanolamine, ammonium carbonate or ammonium hydrogen carbonate may be added to these to promote the reducing action.

[0008]

[0009]

[0010]

In the above general formula (1), examples of tetralin sulfonic acids include 5-tetralin sulfonic acid and 6-
Tetralin sulfonic acid, 5,7-tetralin disulfonic acid, 8-hydroxy-6-tetralin sulfonic acid, 8-
Amino-6-tetralin sulfonic acid, 8-methyl-6-
Tetralin sulfonic acid, 8-butyl-6-tetralin sulfonic acid, 8-ethyl-6-tetralin sulfonic acid, 8
-Isopropyl-6-tetralinsulfonic acid, 8-methyl-5-tetralinsulfonic acid, 8-methoxy-6-tetralinsulfonic acid, 8-acetyl-6-tetralinsulfonic acid and the like; 4-indanesulfonic acid, 5-indanesulfonic acid, 4,6-indanedisulfonic acid, 6-hydroxy-4-indanesulfonic acid, 6-hydroxy-5-indanesulfonic acid, 7-methoxy-5-indanesulfonic acid, 7-acetyl-5-indanesulfonic acid, 7-methyl-5-indanesulfonic acid, 7-methyl-4-indanesulfonic acid, 7-butyl-5-indanesulfonic acid, 7-ethyl-5-indanesulfonic acid, 7-isopropyl-5-indanesulfonic acid and the like can be mentioned. In addition, as these salts, sodium salt, potassium salt,
Calcium salts, ammonium salts, and organic quaternary ammonium salts can be mentioned.

These tetralin sulfonic acids and indane sulfonic acids can be used alone or in admixture of two or more, and the amount thereof to be added to the hair treatment composition and the second agent is 0.1-10. %, Particularly 1 to 5% is preferable. If it is less than 0.1%, the effect of hair treatment is not sufficient, and 1
Even if it exceeds 0%, it is not possible to obtain the improvement in the effect commensurate with the increase.

The hair treatment composition and the second agent of the present invention contain an organic solvent in order to improve the solubility of tetralin sulfonic acids or indane sulfonic acids (B) and to promote the penetration into hair. be able to.

As such an organic solvent, the following formula (2) is used.
And N-alkylpyrrolidone represented by the following formula (3) or alkylene carbonate having 1 to 4 carbon atoms.

[0015]

[Chemical 3]

[0016]

[Chemical 4]

Specific examples of these organic solvents include ethanol, isopropanol, n-propanol,
n-butanol, isobutanol, ethylene glycol, propylene glycol, 1,3-butanediol,
Benzyl alcohol, cinnamyl alcohol, phenethyl alcohol, p-anisyl alcohol, p-methylbenzyl alcohol, phenoxyethanol, 2-benzyloxyethanol, methylcarbitol, ethylcarbitol, propylcarbitol, butylcarbitol,
Triethylene glycol monoethyl ether, triethylene glycol monobutyl ether, glycerin, N-
Methylpyrrolidone, N-octylpyrrolidone, N-laurylpyrrolidone and the like can be mentioned.

The amount of such organic solvent compounded is 0.5 to 50.
%, Particularly 2 to 30% is preferable. If it is less than 0.5, the sufficient effect is not exhibited, and even if it exceeds 50%, the effect is not improved. Further, the mixing ratio of water and the organic solvent,
Depending on the water solubility of the solvent, solvent: water = 20: 80-5
0:50 is preferable.

Further, in the hair treatment composition of the present invention, a thickening agent such as hydroxyethyl cellulose, a surfactant, a perfume, a pearling agent, a dye, and the like, if necessary, within a range not impairing the effects of the present invention. You may mix | blend a ultraviolet absorber, an antioxidant, a preservative, etc. Further, in order to improve the feel of hair or skin, a cationic polymer such as cationized cellulose and a silicone derivative such as dimethylpolysiloxane or amino-modified silicone can be blended.

Hair treatment using the hair treatment composition of the present invention is carried out as follows. That is, the reducing agent (A)
And a hair treatment composition containing tetralin sulfonic acids or indane sulfonic acids (B) on the hair,
After leaving for a certain period of time, preferably 5 to 30 minutes, it is washed out. Even if the applied hair is dry,
It may be moist after washing hair. While standing, it may be heated to an appropriate temperature, preferably 30 to 50 ° C. Another method is performed by treating hair with a first agent containing a reducing agent (A) and then a second agent containing tetralin sulfonic acids or indane sulfonic acids (B). In this method, the second agent may be applied immediately after the reduction treatment of the hair with the first agent, or the second agent may be applied after rinsing away the reducing agent. The treatment with the first agent and the second agent may also be heated to a suitable temperature (preferably 30 to 50 ° C.) for a certain period of time (preferably 5 to 30 minutes) after each treatment.

The hair treated as above is treated with peroxides such as hydrogen peroxide, sodium percarbonate and sodium perborate, and oxidants such as bromates such as bromic acid, potassium bromate and sodium bromate ( It is preferable to treat with a composition containing hydrogen peroxide, bromic acid and sodium bromate) to recombine the cystine bond cleaved by the reducing agent.

[0022]

EFFECTS OF THE INVENTION According to the hair treatment composition of the present invention, it is possible to give sufficient hair / strain to the hair in a short time, and the effect lasts for a long time.

[0023]

The present invention will be described below with reference to examples, but the present invention is not limited to these examples. Examples 1 and 2 and Comparative Examples 1 to 3 With the hair treatment composition having the composition shown in Table 1, the hair was treated at 40 ° C. for 3 hours.
It was processed for 0 minutes. Subsequently, the hair was oxidized with an 8% sodium bromate aqueous solution, rinsed with water, dried with a hair dryer, and a comparative test was conducted. (1) Hair used Hair of a Japanese woman who has not been subjected to cosmetic treatment such as cold perm or bleach until now (2) Evaluation method A bundle of 10 g of hair was prepared, and half of the hair was treated. A pair of comparative tests were carried out on the hair beam / strain by five specialized panelists. The evaluation criteria are as follows. ⊚: Treated hair feels more stiff / strainer ○: Treated hair feels stiffer / strainer △: Same as untreated hair X: No stiffer / strain than untreated hair Was repeatedly washed with a commercial shampoo four times and dried, and then evaluated for burrs / strains in the same manner as above. (3) Results Table 1 shows.

[0024]

[Table 1]

Examples 3 to 6 and Comparative Example 4 First, the first agent (ammonium thioglycolate 6.0) was used.
%, Ammonium hydrogencarbonate 3.0%, pH adjusting ammonia water pH = 8.5) (30 ° C., 10 minutes), washed with water, and then treated with a second agent having the composition shown in Table 2. (40 ° C., 30 minutes). Subsequently, the hair was oxidized with an 8% aqueous bromic acid solution, washed with water, dried with a hair dryer, and a comparative test was conducted. The results are shown in Table 2.

[0026]

[Table 2]

Example 7 A hair treatment composition having the following composition was prepared, and Examples 1 and 2 were used.
Tested as above. (Composition) (%) (1) N-acetyl-L-cysteine 1.5 (2) Sodium 6-tetralinsulfonate 3.0 (3) Stearyltrimethylammonium chloride 1.0 (4) Cetanol 0.2 (5 ) Propylene glycol 3.0 (6) Hydroxyethyl cellulose 1.0 (7) Fragrance 0.1 (8) Sodium hydroxide Suitable amount (pH = 7 amount) (9) Water balance Sufficiently compared to untreated hair / Strain was obtained. This effect was observed even after repeating the shampoo 4 times.

Example 8 A hair treatment composition having the following composition was prepared and tested in the same manner as in Example 7. (Composition) (%) (1) Sodium hydrogen sulfite 4.0 (2) Sodium 5-indanesulfonate 1.0 (3) Stearyltrimethylammonium chloride 1.0 (4) Cetanol 0.2 (5) Propylene glycol 3 0.0 (6) Hydroxyethylcellulose 0.5 (7) Fragrance 0.1 (8) Dye Trace (9) Water Balance (pH = 6) Sufficient firmness / strain was obtained compared to untreated hair. This effect was observed even after repeating the shampoo 4 times.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Naohisa Kure 3-16-1-307 Higashisuna, Koto-ku, Tokyo

Claims (2)

[Claims] 1. The following components (A) and (B), (A) reducing agent (B) general formula (1) [In the formula, at least one of A ^{1 to} A ⁴ represents a sulfone group, and the other represents a hydrogen atom, a halogen atom, a hydroxyl group, a lower alkyl group, an acyl group, a carboxyl group, an amino group or a lower alkoxy group, n represents a number of 1 or 2] A hair treatment composition comprising a compound or a salt thereof, such as tetralin sulfonic acid or indane sulfonic acid. 2. A hair treatment method comprising treating with a first agent containing a reducing agent, and then treating with a second agent containing tetralin sulfonic acids or indan sulfonic acids.