JPH1192346A - Hair cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prepare a hair cosmetic such as hair spray excellent in styling- preserving effect even if the content of an volatile organic compound is under a specific regulated value by allowing the hair cosmetic to include a medium comprising water and ethyl alcohol formulated in a specified proportion, and a specific polymer. SOLUTION: This hair cosmetic having <=55 wt.% content of a volatile organic compound based on the whole composition contains (A) a medium comprising water and ethyl alcohol and containing >=40 wt.% ethyl alcohol, (B) a coating-membrane-formable polymer (e.g. an alkanolamine solution of an acryl resin and a vinyl alcohol/vinyl amine copolymer) having >=5 wt.% solubility in the water or the ethyl alcohol at 25 deg.C, preferably regulated so that the whole composition may contain >=40 wt.% water and 0.5-10 wt.% component B. The cosmetic causes no problem such as spray clogging because requiring much nonvolatile component formulated therewith.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a hair having an excellent styling retention effect while containing 55% by weight or less of a volatile organic compound (hereinafter sometimes referred to as "VOC") in the whole composition. Related to cosmetics.

[0002]

2. Description of the Related Art Conventionally, hair cosmetics for fixing hair, so-called hair sprays, include a propellant, an alcohol component, and a hair fixing polymer, a neutralizing agent and a plasticizer thereof, and an oil agent necessary for designing a feeling of use. Most are composed of components exhibiting high volatility. Therefore, when this was sprayed on the hair, it quickly volatilized, and the already completed hairstyle did not collapse.

[0003] In recent years, in consideration of environmental destruction by volatile organic compounds, regulations to limit the amount of highly volatile components contained in aerosol compositions to 55% by weight or less are being enforced in the United States and the like. In order to comply with such regulations, an aerosol composition in which a part of highly volatile components is replaced by water has been studied. However, when such an aerosol composition is used for fixing hair, there is a problem that water contained in the composition destroys a previously made hairstyle.

For this reason, attempts have been made to mix a large amount of a non-volatile component such as a polymer, fine powder, or a silicone compound into the aerosol composition. In this case, however, clogging of the aerosol content becomes a serious problem.

[0005]

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a hair cosmetic which has an excellent styling retention effect even when the content of a volatile organic compound is 55% by weight or less.

[0006]

Under such circumstances, the present inventors have conducted intensive studies and as a result, have used water and ethyl alcohol as a medium so that the proportion of ethyl alcohol is 40% by weight or more, and Alternatively, if an ethyl alcohol-soluble film-forming polymer is used, even if the VOC is 55% by weight or less, the set collapse due to water is suppressed, the styling retention effect is excellent, and it is necessary to incorporate a large amount of a nonvolatile component such as a polymer. The present inventors have found that a hair cosmetic having no problem of spray clogging can be obtained, and thus completed the present invention.

That is, the present invention relates to a hair cosmetic having a volatile organic compound content of 55% by weight or less in the total composition, wherein the medium of the cosmetic comprises water and ethyl alcohol, and Alcohol content of 40
The present invention provides a hair cosmetic, characterized in that it is not less than 10% by weight and further contains a film-forming polymer which is soluble in water or ethyl alcohol.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The hair cosmetic composition of the present invention has a volatile organic compound content of 55% by weight or less in the total composition. The volatile organic compound used here is not particularly limited as long as it is used for ordinary hair cosmetics. For example, lower alcohols such as ethyl alcohol, isopropyl alcohol and n-propanol;
Lower saturated hydrocarbons such as n-butane, isobutane and isopentane; ethers such as dimethyl ether;

In the hair cosmetic of the present invention, the medium is composed of water and ethyl alcohol. It is preferable that water is added in an amount of 40% by weight or more, particularly 40 to 50% by weight in the whole composition. Further, the content of ethyl alcohol in the medium must be 40% by weight or more, preferably 40 to 55% by weight. If the content is less than 40% by weight, the hair in the composition will promptly relieve the stress due to the water in the composition, and the previously made hairstyle will be destroyed.

The film-forming polymer used in the present invention is soluble in water or ethyl alcohol. Here, the expression “solubility in water or ethyl alcohol” means that the solubility in water or ethyl alcohol at 25 ° C. is 5% by weight or more. In the present invention,
Anything that is soluble in such water or ethyl alcohol and can be used without any particular limitation as long as it is used for ordinary hair cosmetics.

Specifically, examples of the water-soluble film-forming polymer include hydroxypropyl chitosan (for example, manufactured by Ichimaru Falcos: Chitofilmer) and chitosan-dl-pyrrolidone carboxylate (for example, manufactured by Union Carbide) : Kitemer PC), carrageenan (for example, Soagina LX22 manufactured by Mitsubishi Rayon Co., Ltd.), xanthan gum (for example, Echo Gum T manufactured by Dainippon Pharmaceutical Co., Ltd.), guar gum (for example, Fiberlon S manufactured by Dainippon Pharmaceutical Co., Ltd.),
Pullulan (eg, HayashibaraBioch)
Electronic Laboratories: PF-1
0), hydroxyethylcellulose dimethyldiallylammonium chloride (for example, manufactured by Kanebo-NSC: Ce)
lquat L-200), hydroxyethylcellulose-2-hydroxypropyltrimethylammonium chloride (for example, manufactured by Union Carbide: Polymer J
R-400), polyvinyl alcohol (for example, Gohsenol EG-05, EG-20, manufactured by Nippon Synthetic Chemical Company),
Vinyl alcohol / dimethylaminopropyl methacrylamide quaternary salt copolymer (for example, K-31: C-31)
8), vinyl alcohol / itaconic acid copolymer (for example, KM-118 manufactured by Kuraray Co., Ltd.), vinyl alcohol /
Vinylamine copolymer (for example, VA-120-HCl manufactured by Air Products), polyacrylic acid (for example, Carbopol 91 manufactured by BF Goodrich)
0, 940, 980), polydimethyldiallylammonium chloride (for example, manufactured by Calgon: Marcoat 10)
0), dimethyldiallylammonium / acrylamide / acrylic acid copolymer (for example, Mercoat 3331, manufactured by Calgon) and the like.

Examples of the ethyl alcohol-soluble film-forming polymer include, for example, quaternized poly (vinylpyrrolidone / dimethylaminoethyl methacrylate) (for example, Guffcut N755 manufactured by ISP) and vinylpyrrolidone / methacrylamidopropyltrimethyl chloride. Ammonium copolymer (for example, manufactured by ISP: Guffcut HS)
-100), vinyl methyl ether / ethyl maleate copolymer (for example, Gantrez ES-2 manufactured by ISP)
25), acrylic acid / ethyl acrylate / Nt-butylacrylamide (e.g., manufactured by BASF: Ultr
acold8), an alkanolamine solution of acrylic resin (for example, manufactured by Goyo Chemical Co., Ltd .: Plus size L9540)
B), octylacrylamide-acrylic resin (for example, Kanebo-NSC: Amphomer V-42),
Vinyl acetate / crotonic acid / vinyl neodecanoate copolymer (for example, Kanebo-NSC: RESYN28-2)
930), t-butylacrylamide / dimethylacrylamide / dimethylaminopropylacrylamide / methoxypolyethylene glycol methacrylate copolymer described in JP-A-8-291206, JP-A-2-18
No. 0911, t-butyl acrylamide / ethyl acrylate / dimethylaminopropyl acrylamide / methoxypolyethylene glycol methacrylate copolymer, polyvinylpyrrolidone / vinyl acetate copolymer (for example, manufactured by ISP: PVP / VA E73)
5), N-methacryloyloxyethyl-N, N-dimethylammonium-α-N-methylcarboxybetaine / alkyl methacrylate copolymer (for example, Mitsubishi Chemical Corporation: Yuka Former) and the like.

Among these film-forming polymers, in particular, a water-soluble polymer selected from chitosan-dl-pyrrolidonecarboxylate, hydroxyethylcellulose dimethyldiallylammonium chloride, polyvinyl alcohol and its derivatives and polyacrylic acid;
Ethyl acrylate / Nt-butylacrylamide,
Acrylic resin alkanolamine liquid, t-butylacrylamide / dimethylacrylamide / dimethylaminopropylacrylamide / methoxypolyethylene glycol methacrylate copolymer, t-butylacrylamide / ethyl acrylate / dimethylaminopropylacrylamide / methoxypolyethylene glycol methacrylate copolymer and N- Methacryloyloxyethyl-
An ethyl alcohol-soluble polymer selected from N, N-dimethylammonium-α-N-methylcarboxybetaine / alkyl methacrylate copolymer is preferred.

These film-forming polymers can be used alone or in combination of two or more kinds, and 0.5 to 10% by weight, particularly 0.5 to 5% by weight, of the total composition. Is preferred.

The hair cosmetic composition of the present invention further has a molecular weight of 50
An ionic compound having a molecular weight of 90 or less and an ionic compound having a molecular weight of 0 or less can be blended, and the stress relaxation of the hair due to water can be further suppressed, which is preferable. Among them, examples of the ionic compound having a molecular weight of 500 or less include a cationic organic compound having a quaternary ammonium in the molecule and salts thereof (alkyltrimethylammonium chloride, benzalkonium chloride, etc.), and a carboxylic acid as an anionic compound. And salts thereof (aluminum pyrrolidonecarboxylate, disodium ethylenediaminetetraacetate, etc.), sulfuric acid and salts thereof (sodium lauryl sulfate, sodium polyoxyalkylene lauryl sulfate, etc.), amphoteric compounds (betaine stearyldimethylaminoacetate, betaine lauryldimethylaminoacetate, Lauryl dimethylamine oxide, 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazonium betaine, etc.),
Examples include inorganic salts (such as aluminum chloride and calcium chloride), amino acids and derivatives thereof (such as glycine, arginine, and trimethylglycine).

The nonionic compound having a molecular weight of 90 to 6000 is preferably a compound having a polyoxyalkylene skeleton in the molecule or a compound having two or more hydroxyl groups in the molecule. Esters (α-monoisostearyl glyceryl ether, etc.), monosaccharides to oligosaccharides (saccharose, etc.), polyethylene glycol (polyethylene glycol 600)
Etc.).

These ionic compounds and nonionic compounds can be used singly or in combination of two or more kinds.
It is preferable to add 2% by weight, more preferably 0.05 to 1% by weight.

The hair cosmetic composition of the present invention includes, in addition to the above-mentioned components, components used in ordinary hair cosmetics, for example, surfactants, silicones, oils, ultraviolet absorbers, anti-inflammatory agents,
Chelating agents, fragrances, dyes, and the like can be appropriately compounded as long as the effects of the present invention are not impaired.

The hair cosmetic of the present invention can be produced according to a usual method. For example, an aerosol-type hair cosmetic such as a hair spray or a hair foam containing a propellant and filled in a pressure-resistant closed container; It can be in any form of non-aerosol type hair cosmetics such as hair pump spray filled in containers for use.

As the propellant used for preparing an aerosol type hair cosmetic, for example, n-butane, propane,
Examples include isobutane, pentane, chlorinated hydrocarbons, fluorinated hydrocarbons, carbon dioxide, nitrous oxide, dimethyl ether, nitrogen, compressed air and the like, with dimethyl ether being particularly preferred. These propellants can be used alone or in combination of two or more, and 10 to 40% by weight in the total composition,
In particular, it is preferable to add 15 to 35% by weight.

[0021]

According to the hair cosmetic of the present invention, even if the content of the volatile organic compound is 55% by weight or less, the collapse of the set by water is suppressed, the styling retention effect is excellent, and the non-volatile component is contained in a large amount. Since there is no need to mix, there is no problem of spray clogging.

[0022]

EXAMPLES Next, the present invention will be further described with reference to examples, but the present invention is not limited to these examples.

Example 1 A hair spray composition having the composition shown in Table 1 was prepared by filling a pressure-resistant closed container by a conventional method. When the obtained hair spray composition was used by a professional paneler who had prepared a hairstyle in advance, the collapse of the hairstyle 20 minutes after the spraying was evaluated according to the following criteria. The results are shown in Table 1.

[Evaluation Criteria for Hairstyle Collapse] A: There was no hairstyle collapse. ○: Almost no collapse of the hairstyle is felt. Δ: The hairstyle was slightly broken. X: Remarkable collapse of the hairstyle was felt.

[0025]

[Table 1]

Example 2 (Aerosol hair spray) According to the composition shown below, a stock solution was first prepared, and then the stock solution and the propellant were filled in a pressure-resistant closed container to produce an aerosol hair spray. The obtained aerosol hair spray was evaluated for hairstyle collapse in the same manner as in Example 1. As a result, there was no hairstyle collapse due to the spray.

[0027]

(Components) Stock solution: Ethyl alcohol-soluble film-forming polymer ¹⁾ 3.0 (% by weight) Deionized water 42.0 Ethyl alcohol 35.0 Propellant: Dimethyl ether 20.0 1) Yuka Former M75 (Mitsubishi) Chemical company: N-methacryloyloxyethyl-N, N-dimethylammonium-α-N-methylcarboxybetaine / alkyl methacrylate copolymer (30% ethanol solution)

Example 3 (Aerosol hair spray) According to the composition shown below, a stock solution was first prepared, and then the stock solution and the propellant were filled in a pressure-resistant closed container to produce an aerosol hair spray. The obtained aerosol hair spray was evaluated for hairstyle collapse in the same manner as in Example 1. As a result, there was no hairstyle collapse due to the spray.

[0029]

(Components) Stock solution: Water-soluble film-forming polymer ¹⁾ 2.0 (% by weight) Deionized water 43.0 Ethyl alcohol 29.5 Trimethylglycine 0.4 L-arginine 0.1 Propellant: Dimethyl ether 25.0 1) Polyvinylamine VA-120-HCl (Kyowa Hakko Co., Ltd .: vinyl alcohol / vinylamine copolymer)

Example 4 (Aerosol hair foam) According to the composition shown below, a stock solution was prepared first, and then the stock solution and the propellant were filled in a pressure-resistant closed container to produce an aerosol hair foam. About the obtained aerosol hair foam, when the collapse of the hairstyle was evaluated in the same manner as in Example 1, there was no collapse of the hairstyle when the foam was applied.

[0031]

(Components) Stock solution: Ethyl alcohol-soluble film-forming polymer ¹⁾ 2.5 (% by weight) Deionized water 42.5 Ethyl alcohol 33.8 Polyoxyethylene monoalkyl ether ²⁾ 1.0 2- Amino-2-methylpropanol 0.2 Propellant: dimethyl ether 20.0 1) Ultrahold-8 (manufactured by BASF: acrylic acid / ethyl acrylate / Nt-butylacrylamide copolymer) 2) Softanol 90 (Nippon Shokubai) Chemical company)

Claims (12)

[Claims] 1. A hair cosmetic having a volatile organic compound content of 55% by weight or less in the total composition, wherein the medium of the cosmetic comprises water and ethyl alcohol, and the medium contains ethyl alcohol. An amount of 40% by weight or more, and a hair cosmetic, further comprising a film-forming polymer that is soluble in water or ethyl alcohol. 2. The hair cosmetic according to claim 1, wherein water is contained in an amount of at least 40% by weight in the total composition. 3. The film-forming polymer is chitosan-dl.
The hair cosmetic according to claim 1 or 2, which is a water-soluble polymer selected from pyrrolidone carboxylate, hydroxyethylcellulose dimethyldiallylammonium chloride, polyvinyl alcohol and derivatives thereof, and polyacrylic acid. 4. The film-forming polymer is an acrylic acid / ethyl acrylate / Nt-butylacrylamide, an acrylic resin alkanolamine solution, a t-butylacrylamide / dimethylacrylamide / dimethylaminopropylacrylamide / methoxypolyethylene glycol methacrylate copolymer. , T-butylacrylamide /
Ethyl acrylate / dimethylaminopropyl acrylamide / methoxy polyethylene glycol methacrylate copolymer and N-methacryloyloxyethyl-N,
The hair cosmetic according to claim 1 or 2, which is an ethyl alcohol-soluble polymer selected from N-dimethylammonium-α-N-methylcarboxybetaine / alkyl methacrylate copolymer. 5. The hair-fixing polymer according to claim 1, wherein the total amount of the polymer is 0.1%.
The hair cosmetic according to any one of claims 1 to 4, which contains 5 to 10% by weight. 6. The hair cosmetic composition according to claim 1, further comprising an ionic compound having a molecular weight of 500 or less. 7. The hair cosmetic composition according to claim 1, further comprising a nonionic compound having a molecular weight of 90 to 6000. 8. The hair cosmetic according to claim 7, wherein the nonionic compound has a polyoxyalkylene skeleton in the molecule or has two or more hydroxyl groups in the molecule. 9. The hair cosmetic composition according to claim 1, which contains a propellant and is filled in a pressure-resistant closed container. 10. The hair cosmetic according to claim 9, wherein the propellant is dimethyl ether. 11. The hair cosmetic according to claim 9, wherein the propellant contains 10 to 40% by weight of the whole composition. 12. The hair cosmetic composition according to claim 1, which is filled in a pump type spray container.