JP3248767B2 - Hairdressing composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a hairdressing composition,
In particular, the present invention relates to a hairdressing composition containing a polymer as a hairdressing base.

[0002]

2. Description of the Related Art In recent years, natural substances have been favored, and accordingly, in cosmetics, unscented or ultra-scented products and uncolored or light-colored products have begun to attract attention. . This tendency is not limited to the original skin cosmetics, but has recently been applied to hair cosmetics such as shampoos, rinses, and hair styling products. Has been done.

However, in a hair styling material containing a polymer as a main component, the base odor peculiar to the polymer itself or the base color is present, so that the fragrance-free (ultra-scented) or non-fragrance-based is used. There was a technical problem that coloring (lightening) was difficult. Therefore, the types of polymers that can be used for such products have been extremely limited.

[0004] Polymers used in hair dressings include anionic polymers represented by copolymers of ethyl acrylate or ethyl methacrylate with anionic monomers, hydroxyethyl cellulose-hydroxypropyltrimethylammonium chloride. Cationic polymer represented by ether, N-methacryloylethyl N, N-dimethylammonium α-N-methylcarboxybetaine
There are amphoteric polymers typified by butyl methacrylate copolymer and nonionic polymers typified by hydroxyethyl cellulose. Among these polymers, amphoteric polymers and nonionic polymers are generally superior in terms of base odor and base color. Further, considering the hair styling effect, which is the main function, N-methacryloylethyl N, N
It can be said that -dimethylammonium-α-N-methylcarboxybetaine-butyl methacrylate copolymer, polyvinylpyrrolidone, and a copolymer of polyvinylpyrrolidone and vinyl acetate are the most excellent polymers.

[0005]

Among these polymers, those which can be used for unscented and uncolored products are limited, and deodorization and decolorization are carried out to further improve the base odor and base color. It is necessary to use a reduced one. However, the higher the degree of deodorization and decolorization, the more the raw material cost is affected, and it is unavoidable that economical inconvenience occurs.

[0006] Further, even if a hair styling product with little base odor and base color is obtained immediately after production, it deteriorates with time,
There are many cases in which the base odor is generated later and the base color is generated, and there are many cases in which the hair styling, which does not change with time, becomes unscented (super-scented) and non-colored (light-colored). There were many challenges.

The present invention has been made in view of the above circumstances, and aims to reduce the base odor and the base color immediately after production without deteriorating the basic characteristics, and to develop the base odor and change in color tone over time. It is an object of the present invention to provide a hair styling composition containing a polymer and a polyhydric alcohol as a wetting agent as a base, which can prevent the occurrence of hair loss.

[0008]

Means for Solving the Problems The inventors of the present invention have conducted intensive studies to achieve the above object, and as a result, the hair styling containing a polymer as a base has been found to reduce the appearance of base odor and base color. Found that the unreacted monomer in the polymer was deeply involved, that is, the unreacted monomer was inactivated or oxidized and deteriorated, thereby producing a base odor and a base color. Was. And, based on such knowledge, polymer
It has been found that the incorporation of a reducing agent into a hair styling agent containing as a base can prevent deterioration of unreacted monomers, and the present invention has been accomplished.

That is, the present invention provides a wetting agent comprising at least one selected from the group consisting of polyhydric alcohols, sugar alcohols and derivatives thereof, a nonionic polymer and / or an amphoteric polymer. And a reducing agent.

As the nonionic polymer used in the hairdressing composition of the present invention, polyvinylpyrrolidone, vinylpyrrolidone / vinyl acetate copolymer, or a mixture thereof is used. As a specific example of polyvinylpyrrolidone,
Rubiscore K-30 (manufactured by BASF), PVP-K3
0 (manufactured by ISP). Further, specific examples of vinylpyrrolidone / vinyl acetate copolymer include:
Rubiscol VA (manufactured by Diachemco), Nazuna B (manufactured by Henkel Hakusui) and the like can be mentioned. Further, as the amphoteric polymer, a compound represented by the following general formula (1) shown in [Chemical Formula 2] can be exemplified.

[0011]

Embedded image (In the formula, R is an alkyl group having 1 to 10 carbon atoms, n: m is 10:90 to 50:50, and the number average molecular weight is 20,000 to 200,000.)

The compound represented by the general formula (1) includes N-methacryloylethyl N, N-dimethylammonium / α-N-methylcarboxybetaine / methacrylic acid ester copolymer (trade name: Yuka-Pharma). ,
Diamond Chemco).

These nonionic polymers and amphoteric polymers are usually blended in an amount of about 1 to 10% by weight for the purpose of imparting hair styling power. The greater the blending amount, the more the effect on base odor and base color is affected. large.

The polyhydric alcohol used in the hairdressing composition of the present invention includes glycerin and polyglycerin (such as polyglycerin), and derivatives thereof include ethylene oxide, propylene oxide and butylene oxide. And the like and esterified products of these with alkylene oxides and higher fatty acids such as isostearic acid and oleic acid.

As sugar alcohols, sorbitol,
Mannitol is mentioned, and derivatives thereof include those obtained by subjecting alkylene oxides such as ethylene oxide, propylene oxide and butylene oxide to addition polymerization to these, and esterified products thereof with higher fatty acids such as isostearic acid and oleic acid. Included.

These polyhydric alcohols, sugar alcohols and derivatives thereof are general-purpose bases which are widely used in hairdressings for imparting a wetting effect. It is blended in about weight%. If it is less than 5% by weight, no wetting effect can be obtained, and if it exceeds 50% by weight, stickiness becomes strong, which is not preferable as a hairdressing composition.

The hair styling composition of the present invention contains a reducing agent for reducing the base odor and the base color and preventing deterioration. As a reducing agent, a sulfite such as sodium sulfite,
A bisulfite such as sodium bisulfite is used.
Among them, particularly preferred is sodium bisulfite. The compounding amount is 0.001% by weight based on the total amount of the composition.
As described above, a favorable effect can be obtained. However, if it exceeds 1% by weight, the base odor of the reducing agent itself affects the product, which is not preferable. The following components can be added to the hairdressing composition of the present invention as long as the effects of the present invention are not affected.

For example, ultraviolet absorbers such as oxybenzone, germicidal preservatives such as isopropylmethylphenol and paraoxybenzoate, silicone oil, animal and vegetable oils,
Examples include various oily components such as ester oils, amino acids, proteolytic products and derivatives thereof, various vitamins, various extracts of animals and plants, pigments, chelating agents, and antioxidants.

[0019]

As described above, the hair styling composition of the present invention has a combination of a wet feeling and a strong set holding power, as well as an unscented and ultra-scented scent that is preferred by natural lovers.
Or, it is a non-colored, light-colored product. According to the present invention, since the reducing agent is blended, the base odor and the base color immediately after production can be reduced, and the development of the base odor and the change in color tone due to the deterioration over time can be effectively prevented. Can be prevented.

[0020]

EXAMPLES Hereinafter, the present invention will be described in more detail with reference to Examples of the present invention, but the present invention is not limited to these Examples. Prior to the description of each example, a method of preparing a sample used in each example will be described. It is dissolved in purified water - (1) styling polymer. Separately, a reducing agent and a water-soluble base are dissolved in purified water to form an aqueous phase. (2) This aqueous phase and the polymer solution are uniformly mixed, and
And (3) When blending an oil-soluble substance, the component and a surfactant as a solubilizing agent are dissolved in ethanol, and the above-mentioned base is dissolved.
Into a sample. Next, a method for evaluating the base odor and the base color used in each example will be described. (1) Evaluation of base odor Specially trained evaluators trained on fragrance
Sensory evaluation was performed according to the following criteria. ◎: It is judged that there is almost no base odor of the polymer. ：: It is judged that the base odor of the polymer is very slight. Δ: It is judged that there is a slight base odor of the polymer. X: It is clearly judged that there is a polymer base odor. (2) Evaluation of base color

The degree of base color differs depending on the type of polymer used and the same kind of polymer depending on the lot of the manufacturer, so that a test sample is used for a reference sample to which a reducing agent and a chelating agent are not added. Was visually evaluated according to the following criteria. A: It is judged that the base color is clearly smaller than that of the non-added product. ：: It is judged that the base color is slightly less than that of the non-added product. Δ: Evaluated as equivalent to a non-added product. X: It is judged that the base color is stronger than the unadded product. Examples 1-2 and Comparative Examples 1-2 Six gel-type hairdressing compositions having the composition shown in Tables 1, 2 and 3 below were prepared, and the base odor and the base color were evaluated. Table 1 shows the results. In addition, each numerical value in a table | surface is a weight%.

[0022]

[Table 1]

As is clear from Table 1 above, hair styling compositions containing all the essential components of the present invention (Examples 1 and 2)
It can be seen that both exhibit excellent base odor and base color generation-preventing effects immediately after production and after one month at 50 ° C. On the other hand, the composition containing no polyhydric alcohol and no reducing agent (Comparative Example 1) had a good base color immediately after production, but had a poor base odor.
Both the base odor and the base color after a lapse of months are inferior.
The composition containing a polyhydric alcohol but not containing a reducing agent (Comparative Example 2) has very poor base odor and base color both immediately after production and after one month. Example 3 A hair styling composition having the following composition was prepared and evaluated in the same manner as in Examples 1 and 2. As shown below, all showed good effects. Ingredients Amount (wt%) Carboxyvinyl polymer (Note 2) 0.6 Triethanolamine (adjusted to pH 6.5) Appropriate amount Polyvinylpyrrolidone (Note 3) 5.0 Concentrated glycerin 25.0 Sodium bisulfite 0.03 Ethylenediamine Disodium tetraacetate 0.03 Sodium oxybenzenesulfonate 0.1 Dibutylhydroxytoluene 0.1 Plant extract (Note 4) 0.1 Ethanol 10.0 Remaining purified water (total 100.0) Immediately after production Base Odor ◎ Base color ◎ 50 ° C for 1 month Base odor ○ Base color ◎ Note 2: Carbopol (manufactured by GOOD RICH) Note 3: PVP-30 (manufactured by ISP) Note 4: Nanocomplex S: Mixed plant Extract (22)
(Manufactured by Maruzen Pharmaceutical Co., Ltd.) Example 4 A hair styling composition having the following composition was prepared and evaluated in the same manner as in Examples 1 and 2. As shown below, all showed good effects. Ingredients Compounding amount (% by weight) Stearyl trimethyl ammonium chloride 0.2 Polyoxypropylene (10) diglyceryl ether 10.0 Polyoxypropylene (10) sorbitol ether 5.0 Non-ionic polymer (Note 5) 2 5.5 Sodium bisulfite 0.02 Sodium oxybenzenesulfonate 0.1 Fragrance 0.05 Legal dye (Green No. 3) 0.00001 Ethanol 10.0 Triethanolamine (adjusted to pH 6.5) Appropriate amount Purified water balance (Total: 100.0) Immediately after production Base odor ◎ Base color ◎ 50 ° C for 1 month Base odor ◎ Base color ◎ Note 5: Yukaformer-204W (Diachemco) Example 5 When a hair styling composition was prepared and evaluated in the same manner as in Examples 1 and 2, all exhibited good effects as shown below. Ingredients Blended amount (% by weight) Stearyltrimethylammonium chloride 0.2 Diglycerin 20.0 Polyoxypropylene (10) sorbitol ether 10.0 Non-ionic polymer (Note 5) 2.5 Sodium bisulfite 0. 03 Dibutylhydroxybenzophenone 0.05 Ethanol 20.0 Citric acid (adjusted to pH 6.5) Appropriate amount Remaining purified water (total 100.0) Immediately after production Base odor ◎ Base color ◎ 50 ° C for 1 month Base odor ◎ Base color ◎ Note 6: Ruviscoal VA (Diachemco)

Claims (4)

(57) [Claims] 1. A wetting agent comprising at least one selected from the group consisting of polyhydric alcohols, sugar alcohols and derivatives thereof, a nonionic polymer and / or amphoteric polymer, and a reducing agent. And a hair styling composition comprising: 2. The hairdressing composition according to claim 1, wherein the reducing agent is a sulfite and / or a bisulfite. 3. The polyhydric alcohol is glycerin or polyglycerin, and the sugar alcohol is sorbitol.
2. The hair styling according to claim 1, wherein the derivative is an alkylene oxide adduct and / or an esterified product with a fatty acid, and the amount of the derivative is 5 to 50% by weight based on the total amount of the composition. Composition. 4. The nonionic polymer is polyvinylpyrrolidone and / or vinylpyrrolidone / vinyl acetate copolymer, and the amphoteric polymer is a compound represented by the following general formula (1). The hairdressing composition according to claim 1, which is a hydroxypropyl acrylate / butylaminoethyl methacrylate / octylamide acrylate copolymer. Embedded image (In the formula, R is an alkyl group having 1 to 10 carbon atoms, n: m is 10:90 to 50:50, and the number average molecular weight is 20,000 to 200,000.)