JP2002154934A - Composition for pseudo-increase of hair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a composition for the pseudo-increase of hair, which hardly dyes the surface of skin, can realize a natural finish, can easily be washed out, even when the composition is adhered to a dress, has the good dispersibility of the colored particles in the liquid, and can decrease, for example, an oil/ surfactant ratio to reduce the oily appearance of the finished hair, and to provide an aerosol composition for the pseudo-increase of hair. SOLUTION: This composition for the pseudo-increase of the hair, contains colored particles having an average particle diameter of 10 to 500 μm. The aerosol for the pseudo-increase of hair comprises a propellant and the composition for the pseudo-increase of the hair, containing the colored particles having an average particle diameter of 10 to 500 μm.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simulated hair-growth composition and a simulated hair-growth aerosol composition for concealing the thin hair portion of hair.

[0002]

2. Description of the Related Art
As a method of hiding the thinned part of the hair, there is a method of applying fine fibers or powder colored in hair color to the thinned hair part. For example, JP-A-9-87164 discloses that
A method of spraying thin hair portions by combining carbon black, solid fine powder and an adhesive resin has been proposed,
Japanese Patent Application Laid-Open No. 6-142562 proposes a method of spraying thin hairs by combining microfibers, a dispersant and a propellant. However, although the method disclosed in Japanese Patent Application Laid-Open No. 9-87164 has the effect of thickening the hair and concealing the thinned hair, the fine powder carbon black easily reaches the scalp and stains the skin, resulting in an unnatural finish. In addition, there is a disadvantage that the carbon black hardly falls off when attached to clothes or the like. In addition, Japanese Patent Laid-Open No. 6-1
The method disclosed in Japanese Patent No. 42562 has an effect of making the hair thicker and concealing the thin hair portion, but the dispersibility of the fine fibers is poor, and it is necessary to mix a large amount of an oil agent in order to improve the dispersibility. There is a problem that hair sometimes becomes oily.

[0003] Accordingly, an object of the present invention is to provide a natural finish that is difficult to dye the ground, can be easily removed even if it adheres to clothes, and has a greasy hair finish. An object of the present invention is to provide a simulated hair-growth composition and a simulated hair-growth aerosol composition that can reduce the amount of shampoo.

[0004]

According to the present invention, an average particle size of 10
The object has been achieved by providing a pseudo-hair-growth composition containing colored particles of up to 500 μm.

[0005] Further, the present invention provides an average particle size of 10 to 500 µm.
The above object has been achieved by providing a pseudo-hair-growth composition containing m colored particles and a propellant-containing aerosol composition containing a propellant.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The colored particles used in the composition for artificial hair growth of the present invention are solid particles colored in the same color (black, brown, blonde, white, etc.) as the color of human hair. Yes, as the shape of the colored particles, other than true spherical, elliptical spherical,
Oval shape and the like can be mentioned.

The colored particles used in the present invention have an average particle size of 10 to 500 μm, preferably 20 to 30 μm.
0 μm, and more preferably 30 to 200 μm. When the average particle size of the colored particles is less than 10 μm, the effect of making the fine hair appear thick is lacking, and furthermore, when it adheres to clothes, it enters the texture and cannot be easily removed. In particular, carbon black (average particle size: 0.01 to 5 μm) adhered to clothes and did not fall off easily. If the average particle size is more than 500 μm, the state of attachment to the fine hair is unnatural, and the particles are more likely to fall off than the fine hair.

It is preferable that the ratio of the colored particles having a particle size of 10 to 500 μm to the entire colored particles having the total particle size is 70 to 100%.

The material for forming the colored particles used in the present invention may be either an inorganic or organic material, but a synthetic polymer resin is particularly preferable from the viewpoint of easily controlling the particle diameter, the shape of the particles, and the coloring of the particles. The material of the coloring particles is preferably low-density polyethylene, high-density polyethylene, polyacrylate, polystyrene, polybutene, polyvinyl chloride, urea resin, polyethylene, and other insoluble materials in water and ethanol. Particularly preferred are tacky polyacrylates and copolymers thereof, such that they are adhered to.

The coloring of the colored particles may be carried out by various known methods such as adsorbing a dye to the solid particles formed into a particle shape later, or coloring such as a pigment when polymerizing the monomer. An agent may be added to form colored solid particles. For example, polylauryl methacrylate colored black with carbon black and cross-linked with divinylbenzene can be used as the colored particles.

The amount of the colored particles in the composition for artificial hair growth is preferably from 0.1 to 15.0% from the viewpoint of natural finish and ease of application (it is difficult to apply a large amount at once). It is more preferably from 1.0 to 10.0%, particularly preferably from 2.0 to 7.0%. In this specification, "%" means "% by weight".

As the film-forming polymer used in the composition for artificial hair growth of the present invention, various known film-forming polymers can be used, and any of amphoteric polymers, anionic polymers, cationic polymers and nonionic polymers may be used. Further, a water-soluble synthetic polymer can also be used. here,
The film-forming polymer refers to a polymer capable of forming a film after a propellant gas, such as water, ethanol, LPG, or DME, which can be a solvent for the polymer, volatilizes and evaporates.

Examples of the amphoteric polymer film-forming polymer include Yukaformer AM-75 and AM75S / S
M (above, manufactured by Mitsubishi Chemical Corporation) or the like, a monoalkyl acetic acid amphoteric product of a dialkylaminoethyl methacrylate / alkyl methacrylate copolymer; Amphomer 28-49
10, LV-71 (all made by National Starch)
And hydroxypropyl acrylate / butylaminoethyl methacrylate / octylamide acrylate copolymer.

Examples of the film-forming polymer that is an anionic polymer include Gantrez ES-225E and ES-4.
25E, methyl vinyl ether / alkyl maleic anhydride half ester copolymer such as SP-215 (all manufactured by ISP); vinyl acetate such as Resin 28-1310 (manufactured by National Starch) and Rubiset CA (manufactured by BASF) / Ctronic acid copolymer; Resin 28-2930
Vinyl acetate / crotonic acid / vinyl neodecanoate copolymer such as (National Starch); Rubiset CAP
Vinyl acetate / crotonic acid / vinyl propionate copolymer such as (manufactured by BASF); ADVANTAGECP (IS
Vinyl acetate / monobutyl ester maleate / isoboronyl acrylate copolymer; (meth) acrylic acid such as plus-size L53P (manufactured by Kawara Chemical Co., Ltd.) and Diahold (manufactured by Mitsubishi Chemical Corporation) (Meth) acrylic acid ester copolymer; acrylic acid / alkyl acrylate / alkyl acrylamide copolymer such as Ultrahold 8, Ultrahold Strong (above, manufactured by BASF), Amphomer V-42 (National Starch), etc. Polymer: polyvinylpyrrolidone / acrylate / (meth) acrylic acid copolymer such as Rubiflex VBM35 (manufactured by BASF) and the like.

Examples of the film-forming polymer which is a cationic polymer include Rubicut FC370, FC550, F
C905, HM552, MonoCP (BASF
Vinyl imidazolium trichloride / vinyl pyrrolidone copolymer; Cellcut H-100 (viscosity 1)
000 cps), hydroxyethyl cellulose / dimethyldiallylammonium chloride such as L-200 (viscosity 100 cps) (all manufactured by National Starch);
Vinylpyrrolidone / quaternized dimethylaminoethyl methacrylate copolymer such as Guffcut 734, 755N, 755 (all manufactured by ISP); Rubiflex (BASF
Co., Ltd.), copolymers 845, 937, 958 (above, G
AF Co.) and other copolymers such as polyvinylpyrrolidone / alkylaminoacrylate copolymer; VC-713 (GA
F) and the like; polyvinylpyrrolidone / alkylaminoacrylate / vinylcaprolactam copolymer; vinylpyrrolidone such as Guffcut HS-100 (manufactured by ISP) /
Methacrylamidopropyl trimethylammonium chloride copolymer; alkylacrylamide / acrylate / alkylaminoalkylacrylamide / polyethylene glycol methacrylate copolymers such as water-soluble polymer compounds described in JP-A-2-180911.

Examples of the film-forming polymer which is a nonionic polymer include, for example, Rubiscol K12, 17, 30, and 6
0, 80, 90 (all made by BASF), PVP K1
Polyvinylpyrrolidone such as 5, 30, 60, 90 (all manufactured by GAF); Rubiscol VA28, 37, 5
5, 64, 73, VA37E (all made by BASF),
PVP / VA, E-735, E-635, E-535,
Polyvinylpyrrolidone / vinyl acetate copolymers such as E-335, S-630, and -735 (all manufactured by GAF):
Polyvinylpyrrolidone / vinyl acetate / vinyl propionate terpolymer such as Rubiscol VAP343 (manufactured by BASF); vinyl acetate / N-vinyl-5-methyl-2-oxazoline such as Dowlex (manufactured by Dow Chemical Company) Polymers. These film-forming polymers can be used alone or in combination of two or more.

Among these film-forming polymers, film-forming polymers such as (meth) acrylate / (meth) acrylic acid copolymers and amphoteric film-forming are considered in consideration of the adhesion of particles to hair. Preferably, it is a hydrophilic polymer. As the amphoteric polymer, the Yuka Former AM-75,
As the AM75S / SM and the anionic polymer, the above-mentioned plus size L53P, Ultrahold 8, Amphomer U-42 and the like are preferable.

The amount of the film-forming polymer in the composition for artificial hair growth is from 0.05 to 15.0% from the viewpoint of the adhesion of the colored particles to the hair and the sense of incongruity after application to the hair. Preferably, it is more preferably 1.0 to 10.0%, particularly preferably 2.0 to 7.0%.

The total content of the colored particles and the film-forming polymer in the composition for artificial hair growth is preferably from 0.1 to 30%, more preferably from 1 to 10%, from the viewpoint of the fluidity of the composition. %.

The composition for artificial hair growth of the present invention usually contains a solvent for dissolving the above-mentioned film-forming polymer. When a solvent is used in the composition for artificial hair growth of the present invention, the solvent may be water; ethanol, isopropyl col, propanol, n-butanol, isobutanol, ethylene glycol, propylene glycol, 1,3-butanediol, hexylene glycol. Alcohols such as benzyl alcohol, cinnamyl alcohol, phenethyl alcohol, p-anisyl alcohol, p-methylbenzyl alcohol, phenoxyethanol and 2-benzyloxyethanol; 8-acetylated sucrose-modified ethanol; propylene glycol; Polyhydric alcohols such as butanediol and glycerin; N-methylpyrrolidone, N-
N- such as octylpyrrolidone and N-laurylpyrrolidone
Alkylpyrrolidone and the like. These solvents can be used alone or in combination of two or more.

The mixing ratio of the colored particles and the film-forming polymer is from 0.1 / 10 to 10 / 0.1 in weight ratio (colored particles / film-forming polymer) from the viewpoint of adhesion to hair. Is preferably, and more preferably 1/10 to 10/1.

The mixing ratio of the coloring particles and the solvent is as follows:
From the viewpoint of improving the dispersibility of the colored particles, the weight ratio (colored particles / solvent) is preferably 0.01 / 10 to 10 / 0.01, and more preferably 0.1 / 10 to 10 / 0.1. .

The composition for artificial hair growth of the present invention may contain other components in addition to the colored particles, the film-forming polymer and the solvent as long as the effects of the present invention are not impaired.

Other components include cationic surfactants such as stearyltrimethylammonium salt, nonionic surfactants such as polyoxyethylene alkyl ether and polyoxyethylene polyoxypropylene alkyl ether, alkyl sulfate, and polyoxyethylene alkyl ether. Anionic surfactants such as sulfates, amphoteric surfactants such as betaine alkyldimethylaminoacetate; 2-methyl-
Polymer neutralizers such as 2-amino-1-propanol; dimethylpolysiloxane, polyether-modified silicone,
Amino-modified silicone, squalane, higher fatty acids and / or
Or a touch improver such as ester oil of higher alcohol; an ultraviolet absorber; an antioxidant; a bactericide such as triclosan or trichlorocarban; an anti-inflammatory agent such as dipotassium glycyrrhizinate or tocopherol acetate; an anti-dandruff such as zinc pyrithione or octopirox Preservatives such as methyl paraben and butyl paraben; pH adjusters such as lactic acid and citric acid; fragrances;

The composition for artificial hair growth of the present invention may contain an oil agent and / or a surfactant, or may not contain an oil agent and a surfactant. From the viewpoint of not decreasing, the smaller the value, the better, for example, preferably 0 to 10%, particularly preferably 0 to 5%.

Oils to be contained in the composition for artificial hair growth include esters such as isopropyl myristate, isopropyl laurate, hexyl laurate, cetyl lactate, propylene glycol monostearate, hexadecyl 2-ethylhexanoate, and octyl dodecyl myristate. Oil is preferred. As the surfactant, polyoxyethylene lauryl ether, sorbitan monolaurate,
Sorbitan monostearate is preferred.

The composition for artificial hair growth of the present invention is preferably used by filling it in an aerosol container together with a propellant. As the aerosol container to be filled with the composition for artificial hair growth, various known materials capable of injecting the contents with the power of a propellant can be used without any particular limitation. It may be one that jets to Examples of the propellant include a compressed gas such as nitrogen gas, liquefied natural gas (LPG), dimethyl ether (DME), isopentane, and methylal. The pseudo-hair-growth composition sprayed from the aerosol container is directly sprayed on the thin hair portion of the hair or the like, or applied indirectly by hand or brush. In this way, the thin hairs and the like are concealed so as to be inconspicuous.

The aerosol composition for artificial hair growth of the present invention comprises:
It contains the propellant as described above together with the composition for artificial hair growth of the present invention, and is used after being filled in the aerosol container as described above. The weight ratio (pseudo-hair fixing agent / propellant) of the pseudo-hair-growth composition and the propellant (such as LPG) in the pseudo-hair-growth aerosol composition is 1 in the case of a spray.
/ 99 to 80/20, particularly preferably 5/95 to 40/60, and in the case of a foam, 70/30 to 95/5 is preferred.

[0029]

Examples [Examples 1 to 7, Comparative Examples 1 and 2] The components shown in Tables 1 and 2 were mixed in the proportions (% by weight) shown in Tables 1 and 2 to obtain a composition for artificial hair growth. The coloring particles used in the examples are as follows. In addition, Yuka Former, Gantrez and Guff Cut in Table 1 have resin solid content of 30%,
The amounts are 50% and 20%, and the amounts shown in Table 1 are the amounts including the solvent portion other than the resin solid content. The carbon black used in Comparative Example 2 had an average particle size of 7 μm
It is as follows.

D12: "Flow beads LE-2080" manufactured by Sumitomo Seika Co., Ltd. (low-density polyethylene, average particle size: 12 μm) D40; polylauryl methacrylate colored black with carbon black was crosslinked with divinylbenzene. D500; polylauryl methacrylate colored black with carbon black crosslinked with divinylbenzene (average particle size 500 μm) Chitosan / lauryl methacrylate core-shell particles; average particle size 70 μm

[Evaluation] Each of the compositions for artificial hair growth in Examples and Comparative Examples was used as stock solutions, and the stock solutions shown in Tables 1 and 2 were mixed with the propellants shown in Tables 1 and 2 in proportions shown in Tables 1 and 2, respectively. Each aerosol composition was filled in an aerosol container. Using these aerosol containers, an evaluation test was conducted by 10 specialized panelists, and the following items were evaluated. In addition, the injection form (dosage form) of the compositions of Examples 1 to 6 and Comparative Examples 1 and 2 is spray (aerosol), and the injection form (dosage form) of Example 7 is a foam (aerosol). .

<Effect of Naturally Hiding Thin Hairs> A professional paneler evaluates the naturalness of the finish after use in three stages.
A total of 10 professional panelists were determined, with 5 points for those who answered "natural", 2 points for those who answered "slightly natural", and 0 points for those who answered "unnatural". The total points were evaluated as ○ for 40 points or more, Δ for 20 points or less and less than 40 points, and × for less than 20 points. Tables 1 and 2 show the results.

<Evaluation of oiliness> The expert panelists evaluated the oiliness of the hair after use on a three-point scale, and five people who answered "not oily" rated 5 points, "Slightly oily". "2 points for those who answered", and 0 points for those who answered "oily," and the total score of 10 expert panelists was calculated. The total score is 40
The results were shown in Tables 1 and 2, where the score was ○ for points or more, Δ for less than 40 points and 20 for more points, and × for less than 20 points.

<Painting on clothes> A panel of experts evaluated the ease of removing when attached to clothes on a three-point scale, and five persons who answered "Easy to remove" were given.
Two people answered, "It was a little difficult to get rid of it."
The total score of 10 expert panelists was calculated, with the person who answered, "It was difficult to remove." When the total score is 40 points or more, ○, when less than 40 points, 20 points or more, Δ, 20
The results were shown in Tables 1 and 2 where x was less than the point.

<Dispersibility> Each of the pseudo-hair-growth compositions of Examples and Comparative Examples was mixed with the propellants shown in Tables 1 and 2, and the respective pseudo-hair-growth aerosol compositions shown in Tables 1 and 2 were each compatible bottles. , And the dispersion state of the colored particles was visually observed. Then, the dispersibility was evaluated based on the following criteria, and the results are shown in Tables 1 and 2. ；: Good dispersion condition. Δ: There are some aggregates. X: There are aggregates.

[0036]

[Table 1]

[0037]

[Table 2]

From the results shown in Tables 1 and 2, according to the composition for artificial hair growth and the aerosol composition for artificial hair growth of the present invention,
The scalp is hardly stained and a natural finish can be realized.
Even when the colored particles adhere to the clothes, the colored particles can be easily wiped off, and the dispersibility of the colored particles in the liquid can be good. It turns out that length can be reduced. In Comparative Example 2, the background was stained by carbon black, which was the main cause of the unnatural finish.

[0039]

According to the pseudo-hair-growth composition and the pseudo-hair-growth aerosol composition of the present invention, the coloring particles do not reach the ground and the ground is hardly stained, so that a natural finish can be realized. Also, even when colored particles or the like are attached to clothes,
Unlike carbon black and microfibers, they do not penetrate deep into clothing fabrics, so they can be easily dropped by hand-paying. Moreover, the dispersibility of the colored particles in the liquid is good, and for example, the oiliness of the hair at the time of finishing can be reduced by reducing the blending amount of the oil agent / activator.

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Claims (3)

[Claims] 1. A pseudo-hair-growing composition containing colored particles having an average particle size of 10 to 500 μm. 2. The composition for artificial hair growth according to claim 1, which comprises a film-forming polymer. 3. An aerosol composition for artificial hair growth comprising the composition for artificial hair growth according to claim 1 or 2 and a propellant.