JP2525738B2 - Hair treatment composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention removes the yellowing of the white hair (partially pale yellow hair) to keep the white hair beautiful and also has an excellent conditioning effect. The present invention relates to a treating agent composition.

(Prior art) As a cause of yellowing of white hair, denaturation of hair proteins by heat, ultraviolet rays, chemicals, etc., residual sebum secreted from the scalp, residual metabolites of microorganisms, adherence of air pollutants such as cigarette smoke Contamination due to residual hair cosmetics due to insufficient cleaning is considered. Actual yellowing is considered to be a result of these complicated relationships, and at present,
No clear cause has been identified.

The yellowing of the white hair causes mottled appearance on the hair, and the appearance of the hair is significantly impaired due to the loss of luster. In general, most gray-haired people want to keep their gray hair white and beautiful.

Conventionally, as a method of eliminating the yellowing of white hair, the yellowing is hidden by a hair foam, a hair shampoo, and a hair styling agent, which are blended with a bluing dye such as a blue dye (for example, Brilliand Blue FCF, Alizulol Purple, Procian Blue). , Using a bleaching agent that uses an oxidizer (eg hydrogen peroxide, sodium perborate) or a reducing agent (eg sodium thiosulfate)
A method of decomposing and removing the yellowing-causing substance is known. However, the former method is not practical because it is easily dyed unevenly and it is difficult to completely restore the whiteness of the gray hair, and the latter method is less safe for hair and scalp. It was necessary to give due consideration.

(Problems to be Solved by the Invention) Therefore, the inventors of the present invention have conducted diligent research to solve the above-mentioned problems, and as a result, a specific organic solvent described below, a specific quaternary ammonium salt described below, and water And a hair treatment composition having an organic solvent content of 1 to 30 wt% can effectively and easily remove the yellowing of white hair without damaging the hair and scalp. Conditioning effect (for example, to make hair supple, moisturize,
The present invention was completed by discovering that good combing) was performed.

An object of the present invention is to provide a hair treatment composition which can easily remove the yellowing of the gray hair, keep the gray hair beautiful, and have an excellent conditioning effect.

(Means for Solving the Problem) The present invention comprises the following organic solvent, a quaternary ammonium salt, and water, and the content of the following organic solvent is 1 to 30% by weight. It is a characteristic hair treatment composition.

(A) Organic solvent cyclohexanol, n-amyl alcohol, n-hexyl alcohol, benzyl alcohol, triethylene glycol, tetraethylene glycol, isoamyl acetate,
At least one organic solvent selected from the group consisting of γ-butyrolactone.

(B) Quaternary ammonium salt The following general formula (1) (In the above formula, ₁ to _{2 of} R ₁ , R ₂ , R ₃ and R ₄ has 12 carbon atoms.
-24 is a long chain alkyl group, the rest is an alkyl group having 1 to 3 carbon atoms and a benzyl group, and X is a halogen atom. ) At least one quaternary ammonium salt represented by:

The specific organic solvent used in the present invention is a known substance, and the affinity of this organic solvent for hair is such that coexistence with a quaternary ammonium salt significantly improves the effect of removing yellowing.

The amount of the organic solvent blended is 1 or 30% by weight (hereinafter, wt%) based on the total amount of the composition, either alone or in a total amount of two or more kinds.
Abbreviated as “), preferably 5 to 15 wt%. If the compounding amount of the organic solvent is less than 1 wt%, the yellowing removing effect is lowered, and if it is more than 30 wt%, the organic solvent is liable to remain on the hair, which causes stickiness and significantly reduces the conditioning effect. Not preferable.

The fourth represented by the general formula (1) used in the present invention
Examples of the primary ammonium salt include stearyl trimethyl ammonium chloride, cetyl trimethyl ammonium bromide, behenyl trimethyl ammonium chloride, distearyl dimethyl ammonium chloride, stearyl dimethyl benzyl ammonium chloride, lauryl diethyl benzyl ammonium bromide, etc. This remarkably improves the yellowing removal effect, and has a conditioning effect, that is, an effect of making the hair supple, giving a moist feeling, and improving combability. Especially in the formula
The quaternary ammonium salt in which at least one of R ₁ , R ₂ , R ₃ and R ₄ is a benzyl group is most preferable because it has a markedly yellowing removing effect.

 The water content is usually 60 to 98.9 wt%.

The hair treatment composition of the present invention is generally applied to a hair treatment agent such as a hair rinse or a hair conditioner, which rinses hair after treatment.

Further, the hair treatment composition of the present invention, in addition to the above essential components, an oily substance such as higher alcohol and liquid paraffin, as long as it is within a range that does not impair the stability of the system or the above effects.
It is also possible to mix conventional optional ingredients such as fragrances, preservatives and oxidants.

(Examples) The present invention will be described in more detail with reference to Examples below.
The methods for testing the yellowing removal effect and sensory characteristics shown in the examples are as follows.

Yellowing Removal Effect Test (a) Sample Test 2 g of a hair bundle (a bundle of white hair) was immersed in a 5% sodium perborate aqueous solution at 40 ° C. for 3 hours, washed with water, and air-dried.

(B) Test method The sample hair is immersed in a 10% aqueous solution of the sample (hair treatment composition) kept at 40 ° C, soaked for 1 hour, washed with water, and air-dried. This treated hair bundle is subjected to color measurement using a high-speed colorimeter (CMB-1000 type, manufactured by Murakami Colorant Co., Ltd.) to obtain X, Y, Z values which are tristimulus values of the XYZ color system. Using the X, Y, Z values obtained before the treatment of the sample hair treatment agent and the X ', Y', Z'values obtained after the treatment, the degree of removal of the yellowing of the sample hair was determined by the following formula.

The larger this value is, the greater the yellowing removing effect is, which indicates that the yellowed hair is whiter.

Practical characteristics test Twenty subjects conducted a practical test once a day for three consecutive months using a sample (hair treatment agent), and had a "yellowing removal effect", conditioning effect of "suppleness", "moisturizing feeling". , And "Kushidori" were tested.
After the test, we answered the questionnaire about each test item.

Test item Evaluation criteria Yellowing removal effect: Number of people who answered that the yellowing of white hair was removed and turned white Suppleness: The number of people who answered that it became supple after treatment Moisture feeling: The number of people who answered that it was moist after treatment Combing: Treatment After that, the number of people who answered that combing was good. Comparative Examples 1-2, Examples 1-3 In the following raw material compositions, organic solvents were blended as shown in Table 1 to prepare each hair rinse. Then, the above-mentioned various tests were carried out, and the results are shown in Table 1 (right column).

composition Preparation method Ingredients (1) to (4) were uniformly dissolved at about 80 ° C and cooled to room temperature.

Properties As shown in Table 1 (right column), the hair rinses of Comparative Examples 1 and 2 using the organic solvent outside the compounding amount range of the organic solvent specified in the present invention gave good results in various tests. I couldn't do it.

The inventive hair rinses of Examples 1 to 3 clearly showed excellent properties over all the tests.

As is clear from this result, the content of the specific organic solvent is preferably 1.0 to 30.0% by weight.

Comparative Examples 3 to 6 and Examples 4 to 13 As hair treatment compositions, each hair rinse having the following raw material composition was prepared and the above-mentioned tests were conducted. The results are shown in Table 2.

composition Preparation method After uniformly dissolving components (1) to (80), components heated at about 80 ° C were added and cooled to room temperature to obtain each hair rinse.

Characteristic 2 As shown in the second, the hair rinse using the organic solvent other than the organic solvent according to the present invention in Comparative Examples 3 to 5 and the cationic surfactant other than the quaternary ammonium salt according to the present invention in Comparative Example 6 are used. The hair rinse had poor results in various tests.

The inventive hair rinses of Examples 4 to 13 clearly showed excellent properties over all of the tests.

As is clear from this result and the results of Comparative Examples 7 to 14 and Comparative Examples 15 to 20 described below, the hair treatment composition was prepared by the coexistence (synergistic effect) of the specific organic solvent and the quaternary ammonium salt. The effect of removing yellowing can be remarkably improved.

Comparative Examples 7 to 14 This comparative example shows that the composition containing no quaternary ammonium salt (aqueous solution of the organic solvent) has extremely low yellowing removal and conditioning effects.

The yellowing removal and conditioning effect test of an aqueous solution containing a predetermined amount of each organic solvent shown in Table 3 was conducted as described above. The results are shown in Table 3.

As is clear from the results in Table 3, the effect of removing the yellowing and conditioning of the composition containing no quaternary ammonium salt (aqueous solution of the organic solvent) is extremely low and not practical.

Thus, in the composition comprising the organic solvent and water (aqueous solution of the organic solvent), there is almost no yellowing removal and conditioning effect, and when the quaternary ammonium is omitted, the above-mentioned object of the present invention is achieved. Cannot be achieved.

Comparative Examples 15 to 20 This comparative example shows that the hair rinse which does not contain the organic solvent (composition comprising the quaternary ammonium salt and water) has a very low effect of removing the yellowing and conditioning.

As described above, the yellowing removal and conditioning effect test of an aqueous solution containing a predetermined amount of each quaternary ammonium salt shown in Table 4 was performed. The results are shown in Table 4.

As is clear from the results in Table 4, the hair rinse that does not contain the organic solvent (composition comprising the quaternary ammonium and water) has extremely low yellowing removal and conditioning effects.

As described above, the hair rinse that does not contain the organic solvent has almost no effect of removing the yellowing and conditioning, and if the organic solvent is omitted, the above object of the present invention cannot be achieved.

Example 14 10 parts by weight of triethylene glycol, 2 parts by weight of stearyldimethylbenzylammonium chloride and 3 parts by weight of cetostearyl alcohol were uniformly dissolved at 80 ° C, and then 85 parts by weight of water (80 ° C) was added to this solution. , And then cooled to room temperature to prepare the hair conditioner of the present invention.

As a result of performing the above-mentioned tests on this hair conditioner, the degree of yellowing removal was 7.457, and the number of people who answered that the yellowing of white hair was removed and turned white was 19 out of 20, which is excellent in the effect of removing yellowing. And, after treating the hair, 19 out of 20 answered that it became supple, 20 out of 20 answered that it became moist after treatment, and 20 out of 20 answered that the comb was good after treatment. With 20 people, the conditioning effect was also very good.

The hair conditioner is a very useful hair treatment composition that can also be used as a hair rinse.

Example 15 In the same manner as in Example 14 except that tetraethylene glycol is used instead of triethylene glycol,
A hair conditioner of the present invention was prepared.

The obtained hair conditioner had a degree of yellowing removal of 7.415, and 19 out of 20 people answered that the yellowing of white hair was removed, which was excellent in the effect of removing yellowing, and was supple after treating the hair. The number of respondents who answered that it was 19 out of 20, the number of people who answered that it was moist after the treatment was 20, and the number of people who answered that the combing was good after treatment was 20 out of 20 and the conditioning effect was also extremely high. It was good.

The hair conditioner is a very useful hair treatment composition that can also be used as a hair rinse.

Example 16 A hair conditioner of the present invention was prepared in the same manner as in Example 14, except that benzyl alcohol was used instead of triethylene glycol.

The degree of yellowing removal of the obtained hair conditioner was 7.421, and the number of people who answered that the yellowing of white hair was removed and became white was 19 out of 20, which is excellent in the effect of removing yellowing, and treats the hair. 19 out of 20 people said they became supple later, 19 out of 20 people said that they were moist after the treatment, and 20 out of 20 people said that the combing was good after the treatment. The effect was also very good. The hair conditioner is a very useful hair treatment composition that can also be used as a hair rinse.

Example 17 A hair conditioner of the present invention was prepared in the same manner as in Example 14, except that 5 parts by weight of γ-butyrolactone was used instead of triethylene glycol and 5 parts by weight of water was added.

The degree of yellowing removal of the obtained hair conditioner was 7.398, and the number of people who answered that the yellowing of white hair was removed and became white was 20 out of 20, which is excellent in the effect of removing yellowing, and after the treatment of the hair. 19 out of 20 responded that they became supple, 19 out of 20 answered that they were moist after the treatment, and 19 out of 20 who answered that the combing was good after treatment. Was also very good. The hair conditioner is a very useful hair treatment composition that can also be used as a hair rinse.

(Effects of the Invention) The hair treatment composition of the present invention, by the coexistence (synergistic effect) of the specific organic solvent and the quaternary ammonium salt,
The yellowing of the gray hair can be easily removed, the gray hair can be beautifully retained, and the conditioning effect is excellent.
The action and effect are remarkable and the commercial value is extremely high.

Claims (2)

(57) [Claims] 1. A hair treatment composition comprising the following organic solvent, a quaternary ammonium salt and water, wherein the content of the following organic solvent is 1 to 30% by weight. Stuff. (A) Organic solvent cyclohexanol, n-amyl alcohol, n-hexyl alcohol, benzyl alcohol, triethylene glycol, tetraethylene glycol, isoamyl acetate, γ
At least one organic solvent selected from the group consisting of butyrolactone. (B) Quaternary ammonium salt The following general formula (1) (In the above formula, ₁ to _{2 of} R ₁ , R ₂ , R ₃ and R ₄ has 12 carbon atoms.
-24 are long-chain alkyl groups, the rest are alkyl groups having 1 to 3 carbon atoms and benzyl group, and X is a halogen atom. ) At least one quaternary ammonium salt represented by: 2. The hair treatment composition according to claim (1), wherein the hair treatment composition is a hair rinse and a hair conditioner.