JPH11199453A - Hairdressing cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a cosmetic suitable as a hairdressing having high flexibility and capable of providing a finished state having setting power for hair and imparting a pliant feeling without becoming stiff. SOLUTION: This hairdressing cosmetic is obtained by including an acrylic resin and polyvinyl alcohol therein. The acrylic resin is an acrylic resin alkanolamine and/or an acrylic acid-dimethyldiallylammonium chloride- acrylamide terpolymer. The degree of polymerization of the polyvinyl alcohol is 500-700.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cosmetic suitable for applying to hair such as hair styling.

[0002]

2. Description of the Related Art Moist and supple hair gives a person a favorable impression of being healthy, bright and beautiful. Therefore, retaining such hair is what everyone wants. Humans have made much effort since ancient times to keep hair in this condition. For example, in ancient times such as the Heian period, care was taken using rice juice and animal and vegetable oils, and in recent years, various hair care cosmetics such as hair treatments, hair rinses, hair creams, and hair oils have been distributed in pharmacies. It is sold for example, and its sales are not small. In such hair cosmetics, a rugged and supple feeling is embodied by a moisturizing component such as a cationic surfactant or a polyhydric alcohol or an oil component such as silicone. However, such a method has a poor yield in a cleaning agent such as a shampoo, and also in other hair cosmetics, such a method certainly improves the moist feeling and suppleness remarkably. However, in recent years, the frequency of using hair dyes and the frequency of applying cold permanents have been increasing, and further improvements have been desired. Furthermore, when setting hair, a film-forming material having a large setting force has been required and developed so as not to break the set. Various acrylic acid-based copolymers suitable as materials for forming such a functional film have been developed. However, the rigidity of the waist, that is, the stiffness resulting therefrom, has been the biggest problem in use of such polymers. The combination of the problem of hair and the problem of a setting agent therefor has led to a demand for the development of a hairdressing material having a soft waist, a setting force for hair, and giving a stiff and supple feeling.

[0003] On the other hand, polyvinyl alcohol and acrylic resin are each used alone as a film-forming agent in hair cosmetics and skin cosmetics. It was not known at all that a "soft" film could be obtained. Here, polyvinyl alcohol has a drawback that the setting force is small, and an acrylic resin has a drawback that the stiffness is large.

[0004]

DISCLOSURE OF THE INVENTION The present invention has been made in view of such circumstances, and has a hair styling finish that has a soft waist, has a setting power for hair, and gives a stiff and supple feeling. It is an object of the present invention to provide a cosmetic which is suitable as the above.

[0005]

SUMMARY OF THE INVENTION In view of such circumstances, the present inventors have sought a cosmetic that is soft as a waist, has a setting force for hair, and is suitable as a finished hairdressing material that gives a firm and supple feeling. As a result of intensive studies, they have found that cosmetics characterized by containing an acrylic resin and polyvinyl alcohol have such properties, and have completed the invention. Hereinafter, the present invention will be described in detail focusing on embodiments.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION (1) Acrylic resin used in cosmetics of the present invention Acrylic resins used in cosmetics of the present invention include acrylic acid, methacrylic acid, their esters, and their constituent monomers. Any polymer or copolymer containing at least one selected from amides can be used without particular limitation. Many of such acrylic resins have already been used as a raw material for cosmetics or as a raw material for medicine, and there are few problems in safety and the like. The use of such a proven track record in the cosmetic of the present invention
It is preferable from such a viewpoint. Examples of the acrylic resin that has been used in this manner include acrylic resin alkanolamine solution (35% acrylic resin, 5% 2-amino-2-methyl-1-propanol, and 6% ethanol) manufactured by Taisei Kako Co., Ltd.
0%), a rain protect polymer, an alkyl acrylate copolymer solution (t-butyl acrylate / ethyl acrylate / methacrylic acid copolymer 30 manufactured by BASF)
%, Ethanol 70%), Marcote Plus 3330, which is a 10% aqueous solution of acrylic acid / dimethyldiallylammonium chloride / acrylamide terpolymer manufactured by Calgon, and the like. Among these, rain protect polymer and And / or Marcoat Plus 3330 is particularly preferable, and it is more preferable to use them in combination. The preferred content of these acrylic resins in the cosmetic of the present invention is as follows.
0.005 to 10 based on the total weight of liquid or solid components
% By weight. This is because if the amount is too small, the film may not be formed, and if the amount is too large, the film may be too hard.

(2) Polyvinyl alcohol used in the cosmetic of the present invention The polyvinyl alcohol usable in the cosmetic of the present invention is:
As long as it is used in cosmetics and medicines, it can be used without any particular limitation. Among these, the preferred degree of polymerization is 100 to 4000, more preferably 40 to 40.
0 to 3000. Among them, those having a distribution of polymerization degree of 500 to 700 are particularly preferable. This is because the acrylic resin also has a function as a plasticizer. Many such polyvinyl alcohols are already commercially available. In the present invention, such a commercially available product can be used, and such a commercially available product is preferably used in the cosmetic of the present invention. Such commercial products include, for example,
Gohsenol EG05 manufactured by Nippon Gosei Co., Ltd.
00-700), Gohsenol EG25 (degree of polymerization 150
0-1800), Gohsenol EG40 (degree of polymerization 220
0-2500) and the like, and among these, Gohsenol EG05 is particularly preferred. The preferred content of polyvinyl alcohol in the cosmetic of the present invention is 0.01 to 10% by weight, more preferably 0.1 to 10% by weight, based on the total weight of liquid or solid components at 1 atmosphere and 25 ° C as the resin component.
0.5 to 5% by weight. This is because if the amount is too small, the effect of adding softness to the film may not be exhibited, and if the amount is too large, the film strength may be impaired.

(3) Cosmetic of the present invention The cosmetic of the present invention is characterized by containing the acrylic resin and polyvinyl alcohol. As the cosmetics of the present invention, for example, cosmetics for the skin, cosmetics for the hair, cosmetics for the nails can be preferably exemplified. It is particularly preferred to apply to hair cosmetics. or,
It is also preferable to form an aerosol formulation together with an LPG gas or the like. It is particularly preferred to use the aerosol dosage form as a foam because it can form a foam with excellent feel. When forming a foam, a stock solution is prepared in advance, and the stock solution and LPG gas are mixed at a weight ratio of 4: 1 to 1: 1.
What is necessary is just to fill an aerosol can at 95: 5. Due to such good film properties, the cosmetic for hair, which is one of the cosmetics of the present invention, can provide a particularly excellent "setting power and rigidity" finish. The cosmetic of the present invention may contain, in addition to the above essential components, optional components commonly used in these cosmetics and external medicine for skin. Such optional components include, for example, hydrocarbons such as petrolatum and microcrystalline wax, esters such as jojoba oil and gay wax, triglycerides such as tallow, olive oil, higher alcohols such as cetanol and oleyl alcohol, and stearic acid. , Fatty acids such as oleic acid, polyhydric alcohols such as glycerin and 1,3-butanediol, nonionic surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants,
Preferred examples include thickeners such as ethanol and carbopol, preservatives, ultraviolet absorbers, antioxidants, pigments, and powders. Particularly preferred are low-molecular weight collagen hydrolysates such as Promois W32R (manufactured by Seiwa Kasei Co., Ltd.) and / or the like in the sense of imparting the essence and moisturizing properties of bulbs of plants of the genus Yuri. A derivative and a high-molecular-weight collagen hydrolyzate such as Promois W52Q (manufactured by Seiwa Kasei Co., Ltd.) and / or a derivative thereof are each added in an amount of 0.01 to 5% by weight to polyoxypropylene (2
5) It is preferable to contain 0.1 to 1% by weight of methyl glucoside.

[0009]

EXAMPLES Hereinafter, the present invention will be described in more detail with reference to examples, but it goes without saying that the present invention is not limited to these examples.

<Examples 1 to 5> A stock solution of a foam-shaped hairdressing cosmetic was prepared according to the following formulation. That is,
The prescription components were dissolved by heating with stirring at 80 ° C., and the mixture was stirred and cooled to obtain a stock solution. 92 parts by weight of this stock solution and 8 parts by weight of LPG were packed in an aerosol can to obtain a foam-like hairdressing cosmetic. Acrylic resin * 7 parts by weight Gohsenol EG05 2.25 parts by weight Polyoxyethylene (20) cetyl ether 2 parts by weight Polyethylene glycol 6000 0.5 parts by weight Polyoxypropylene methyl glucoside 0.3 parts by weight POE lauroylglutamate (5) octyl Dodecyl ether diester 0.2 parts by weight Promois W32R 0.1 parts by weight Promois W52Q 0.1 parts by weight Essence of French lily bulb 0.1 parts by weight Ethanol 20 parts by weight Water 67.45 parts by weight * Details are shown in Table 1. .

[0011]

[Table 1]

<Example 6> Using the hairdressing cosmetics of Examples 1 to 5, a use test was conducted using a specialized panelist to evaluate the characteristics. The evaluation items are foam texture, hair setting power after hair setting, suppleness of hair after hair setting, and waist of hair. Evaluation criteria are ++: very good, +: good,
±: Normal,-: Poor. Further, as Comparative Example 1, a product obtained by replacing Gohsenol E05 of Example 1 with a rain protect polymer was used, and as Comparative Example 2, a product obtained by replacing the rain protect polymer of Example 1 with Gohsenol E05 was used. Table 2 shows the results. This shows that the cosmetic of the present invention using the acrylic resin and polyvinyl alcohol in combination has a setting power, provides a supple, supple, and hairy finish with a soft waist. It is also preferable to use a rain protect polymer and Mercoat Plus 3330 in combination as the acrylic resin, and that the ratio is from 4: 1 to 7: 1.

[0013]

[Table 2]

<Examples 7 to 5> In accordance with the following formulation, a stock solution of a foam-shaped hairdressing cosmetic was prepared. That is,
The prescription components were dissolved by heating with stirring at 80 ° C., and the mixture was stirred and cooled to obtain a stock solution. 92 parts by weight of this stock solution and 8 parts by weight of LPG were packed in an aerosol can to obtain a foam-like hairdressing cosmetic. Rain Protect Polymer 6 parts by weight Mercoat Plus 3330 1 part by weight Polyvinyl alcohol ** 2.25 parts by weight Polyoxyethylene (20) cetyl ether 2 parts by weight Polyethylene glycol 6000 0.5 parts by weight Polyoxypropylene methyl glucoside 0.3 parts by weight Lauroylglutamic acid POE (5) Octyl dodecyl ether diester 0.2 parts by weight Promois W32R 0.1 parts by weight Promois W52Q 0.1 parts by weight Essence of French lily bulb 0.1 parts by weight Ethanol 20 parts by weight Water 67.45 parts by weight ** Details are shown in Table 3.

[0015]

[Table 3]

<Example 9> The hairdressing cosmetics of Examples 7 and 8 were subjected to a use test using a specialized panel to evaluate their characteristics. The evaluation items are foam texture, hair setting power after hair setting, suppleness of hair after hair setting, and waist of hair. Evaluation criteria are ++: very good, +: good,
±: Normal,-: Poor. Example 7 is a control example.
Was used instead of Gohsenol EG25. Table 4 shows the results. This shows that the cosmetic of the present invention using the acrylic resin and polyvinyl alcohol in combination has a setting power, provides a supple, supple, and hairy finish with a soft waist. Also, in consideration of the results of Example 4, it is understood that polyvinyl alcohol having a polymerization degree of 500 to 700 is preferable.

[0017]

[Table 4]

<Example 10> According to the following formulation,
A stock solution of foam-like hairdressing cosmetic was prepared. That is, the ingredients were heated, stirred, and dissolved at 80 ° C., and cooled by stirring to obtain a stock solution. 92 parts by weight of this stock solution and 8 parts by weight of LPG were packed in an aerosol can to obtain a foam-like hairdressing cosmetic. The same evaluations as those in Example 9 were carried out: foam texture + to ++, setting power +, suppleness +, hair waist +, Promois W3
It is understood that it is preferable to include components such as 2R and W52Q. Rain protect polymer 6 parts by weight Mercoat Plus 3330 1 part by weight Gohsenol EG05 2.25 parts by weight Polyoxyethylene (20) cetyl ether 2 parts by weight Polyethylene glycol 6000 0.5 part by weight Polyoxypropylene methyl glucoside 0.3 part by weight Lauroyl glutamic acid POE (5) Octyldodecyl ether diester 0.2 parts by weight Essence of French lily bulb 0.1 parts by weight Ethanol 20 parts by weight Water 67.65 parts by weight

Example 11 A set lotion was prepared according to the following recipe. That is, the ingredients were stirred and solubilized at room temperature to obtain a set lotion. This product had excellent setting power, but did not give a stiff feeling. Rain protect polymer 4 parts by weight Gohsenol EG05 2 parts by weight Ethanol 15 parts by weight Water 77 parts by weight 1,3-butanediol 1 part by weight Polyether-modified silicone 1 part by weight

Example 12 A set lotion was prepared according to the following formulation. That is, the ingredients were stirred and solubilized at room temperature to obtain a set lotion. This product had excellent setting power, but did not give a stiff feeling. Marcote Plus 3330 4 parts by weight Gohsenol EG05 2 parts by weight Ethanol 15 parts by weight Water 77 parts by weight 1,3-butanediol 1 part by weight Polyether-modified silicone 1 part by weight

[0021]

According to the present invention, it is possible to provide a cosmetic which has a soft waist, has a setting force for hair, and is suitable as a finished hair styling which gives a firm and supple feeling.

Claims (5)

[Claims] 1. A cosmetic comprising an acrylic resin and polyvinyl alcohol. 2. The cosmetic according to claim 1, wherein the cosmetic is for hair. 3. The cosmetic according to claim 1, wherein the acrylic resin is an acrylic resin alkanolamine and / or an acrylic acid / dimethyldiallylammonium chloride / acrylamide terpolymer. 4. The polymerization degree of polyvinyl alcohol is 500.
The cosmetic according to any one of claims 1 to 3, wherein 5. A hair styling state having "setting power and being stiff and supple" is provided.
The cosmetic according to any one of claims 4 to 4.