JPH05286829A - Hair treating agent composition - Google Patents

Abstract

PURPOSE:To provide the subject composition capable of imparting adequate firm texture to hair in a short-time treatment, also highly sustainable in its effect. CONSTITUTION:The objective composition essentially containing (A) pref. 0.1-10 (esp. 1-7) wt.% of a reducing agent, esp. thioglycolic acid, ammonium thioglycolate, N-acetyl-L-cysteine or sodium bisulfite and (B) pref. 0.1-10 (esp. 1-5) wt.% of a benzophenonesulfonic acid, e.g. a compound of the formula (A<1>-A<10> are such that at least one is sulfonic acid group or its salt group, the rest being H, halogen, OH, COOH, lower alkyl, lower alkenyl, lower alkoxy or acyl), esp. oxybenzophenonesulfonic acid, dihydroxydimethoxybenzophenonedisulfonic acid or a salt thereof. It may be that these components A and B be prepared separately, i.e., the 1st agent containing the component A at the above concentration and the 2nd agent containing the component B at the above concentration; and the hair be first treated with the 1st agent followed by treatment with the 2nd agent.

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 worries about hair, there are not a few problems related to low elasticity of hair, such as lack of elasticity / strain and lack of volume. In order to satisfy the desires of those who have these concerns, many hair treatment agents have been used in the past, which contain a balm / strain-imparting agent and a conditioning agent. 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 to exert the effect, but the penetrability into the hair is poor, the treatment takes a long time, and the effect is not sufficient.

[0003]

Under such circumstances, the present inventor has conducted diligent research and as a result, if the treatment with a reducing agent and benzophenonesulfonic acid is combined, the elasticity of hair is improved in a short time. However, the present invention has been completed by finding that the hair can be provided with a stiffener / strain, and that this elasticity is retained for a long time.

Therefore, the present invention provides a hair treatment composition containing the following components (A) and (B) (A) reducing agent (B) benzophenone sulfonic acids.

In the hair treatment composition of the present invention, the reducing agent (A) acts to cut cystine in the hair, swell the hair, and allow benzophenone sulfonic acids to quickly penetrate into the hair. is there. Such a reducing agent (A)
As 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 salts thereof (preferred salts are Hydrochloride), N-acetyl-L-cysteine and salts thereof (hydrochloride is preferred as salts), sulfite and bisulfite (preferred as salts are alkali metal salts such as ammonium salts, sodium salts and potassium salts, and Alkaline earth metal salts such as calcium salts) and the like. Of these, thioglycolic acid, ammonium thioglycolate, N-acetyl-L-cysteine, and sodium hydrogen sulfite are particularly preferable.

The reducing agent (A) may be blended with the benzophenone sulfonic acids (B) into a single hair treatment composition, or the first agent containing the reducing agent (A) and the benzophenone sulfonic acids. It can also be prepared separately from the second agent containing (B).

The reducing agent (A) may be used alone or in combination of two or more kinds, and these are contained in the hair treatment composition or the first agent in an amount of 0.1 to 10% by weight (hereinafter, simply expressed as%). ) Is preferably blended in an amount of about 1 to 7%, particularly preferably 1 to 7%. If it is less than 0.1%, no sufficient effect is exhibited, and if it exceeds 10%, no further improvement of 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 hydrogencarbonate may be added to these to promote the reducing action.

In the present invention, examples of the benzophenone sulfonic acids (B) include those represented by the following general formula (1).

[0009]

[Chemical 1]

[In the formula, at least one of A ^{1 to} A ¹⁰ represents a sulfonic acid group or a salt thereof, and the other represent a hydrogen atom, a halogen atom,
Hydroxyl group, carboxyl group, lower alkyl group, lower alkenyl group, lower alkoxy group or acyl group]

Specific examples of the benzophenone sulfonic acids (B) include oxybenzone sulfonic acid, dihydroxydimethoxybenzophenone disulfonic acid, o-chlorobenzophenone sulfonic acid, p-chlorobenzophenone sulfonic acid, 4,4'-dichlorobenzophenone sulfonic acid, 2,4'-dichlorobenzophenone sulfonic acid, 2,4-dichlorobenzophenone sulfonic acid, 2-
Hydroxybenzophenonesulfonic acid, 4-hydroxybenzophenonesulfonic acid, 2-aminobenzophenonesulfonic acid, 4-aminobenzophenonesulfonic acid, 2
-Methylbenzophenonesulfonic acid, 4-methoxybenzophenonesulfonic acid, 4,4'-dimethylbenzophenonesulfonic acid, 4,4'-dimethoxybenzophenonesulfonic acid, 4-chloro-4'-hydroxybenzophenonesulfonic acid and their sodium salts, Examples thereof include potassium salt, lithium salt, calcium salt, ammonium salt, and organic quaternary ammonium salt. Among these, oxybenzonesulfonic acid, dihydroxydimethoxybenzophenonedisulfonic acid and salts thereof are particularly preferable.

Benzophenonesulfonic acid (B) is 1
Or two or more of them may be used in combination, and the amount of these 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 if it exceeds 10%, the effect corresponding to the increase cannot be obtained.

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

Examples of the organic solvent include compounds represented by the following formula (2), N-alkylpyrrolidone represented by the following formula (3), and alkylene carbonates having 1 to 4 carbon atoms.

[0015]

[Chemical 2]

[0016]

[Chemical 3]

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.
%, Especially 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.

Furthermore, in the hair treatment composition of the present invention, if necessary, a thickening agent such as hydroxyethyl cellulose, a surfactant, a fragrance, and the like, as long as the effects of the present invention are not impaired.
You may mix | blend a pearling agent, a pigment | dye, 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 benzophenone sulfonic acids (B) are applied to the hair for a certain period of time, preferably 5 to
After leaving it for 30 minutes, it is washed out. The applied hair may be in a dry state or in a wet state after washing. While standing, up to a suitable temperature, preferably 3
You may heat up to 0-50 degreeC. Another method is carried out by treating hair with a first agent containing a reducing agent (A) and then with a second agent containing benzophenone sulfonic acids (B). In this method, the second agent may be applied immediately after the reduction treatment of the hair with the first agent,
Alternatively, the reducing agent may be rinsed off to wash off the reducing agent, and then the second agent may be applied. 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 re-bond 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]

EXAMPLES The present invention will now be described with reference to examples, but the present invention is not limited to these examples. Examples 1 to 2 and Comparative Examples 1 to 2 Hair treatment compositions having the compositions shown in Table 1 were used to coat hair at 40 ° C. for 3 hours.
It was processed for 0 minutes. Subsequently, the hair was subjected to an oxidation treatment 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 up until now (2) Evaluation method A bundle of 10 g of hair was prepared, and half of the hair was subjected to hair treatment. A pair of comparative tests were carried out on the hair beam / strain by five professional 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 5 and Comparative Example 3 First, the first agent (ammonium thioglycolate 6.0) was used.
%, Ammonium hydrogen carbonate 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, rinsed with water, dried with a hair dryer, and a comparative test was conducted. The results are shown in Table 2.

[0026]

[Table 2]

Example 6 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 oxybenzone sulfonate 3.0 (3) Stearyl trimethyl ammonium chloride 1.0 (4) Cetanol 0.2 (5) Propylene glycol 3.0 (6) Hydroxyethyl cellulose 1.0 (7) ) Fragrance 0.1 (8) Sodium hydroxide proper amount ^* (9) Water balance *: amount at which pH = 7 Sufficient firmness / strain was obtained compared to untreated hair. This effect was observed even after repeating shampoo 4 times.

Example 7 Hair was treated with a hair treatment composition having the following composition (40
C, 30 minutes). Subsequently, it was rinsed in running water for 5 minutes, dried with a hair dryer, and a comparative test was conducted. (Composition)% (1) Sodium bisulfite 4.0 (2) Dihydroxydimethoxybenzophenone disodium disulfonate 1.0 (3) Stearyltrimethylammonium chloride 1.0 (4) Cetanol 0.2 (5) Propylene glycol 3.0 (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 shampoo 4 times.

(72) Inventor Mikako Matsubara 5-23-1 Nishiogikita, Suginami-ku, Tokyo (72) Inventor Naohisa Kure 3-16-1-307 Higashisuna, Koto-ku, Tokyo

Claims (2)

[Claims] 1. A hair treatment composition comprising the following components (A) and (B) (A) reducing agent (B) benzophenone 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 benzophenone sulfonic acids.