JP4832065B2 - Oil-in-water cosmetic for cosmetics - Google Patents

Description

  The present invention relates to an oil-in-water cosmetic for cosmetics that has an unprecedented high long effect, volume effect, uniform blackness without turbidity, and good storage stability.

  Conventionally, eyelash cosmetics are applied to eyelashes for the purpose of imparting a makeup effect that makes the eyes stand out, and have been required to have functions such as a volume-up effect and a long effect. Further, in recent years, in addition to the above effects, there is a tendency to emphasize the blackness of the eyelashes in order to emphasize the eyes more, and the blackness of the mascara liquid itself has been strongly demanded.

  However, conventional vaginal cosmetics have a functional property that makes it necessary to prepare an emulsion containing a large amount of wax in order to increase volume, increase a long feeling, etc., and thus the appearance of the composition becomes white and cloudy. There was a problem. For this reason, it has been difficult to produce a black color without turbidity while maintaining the effect of the cosmetic for glazing.

  Also, conventionally, efforts have been made to blend carbon black, which has higher coloring power than black iron oxide for the purpose of producing blackness, but due to its strong cohesive strength, it is not uniformly dispersed in the system, There was a problem that the blackness of the coating film was uneven, and in addition, it was very difficult to obtain good storage stability. For this reason, a vaginal cosmetic (see Patent Document 1) containing fibers pre-dyed with carbon black is disclosed. However, in this invention, fibers are dyed with carbon black. The blackness was uneven and the blackness was not sufficient. Furthermore, almost no volume effect was felt.

  On the other hand, various efforts have been made for the purpose of increasing the volume. For example, a mascara composition (see Patent Document 2) containing highly polymerized polyethylene glycol and poly (meth) acrylate is disclosed. However, in these conventional inventions, it cannot be said that the volume effect is sufficient, and even the long effect and the blackness without any turbidity cannot satisfy the needs of consumers at all.

Japanese Patent Laid-Open No. 10-291917 JP 11-79941 A

  An object of the present invention is to provide an oil-in-water cosmetic for cosmetics which has an unprecedented high long effect, volume effect, uniform blackness without turbidity, and good storage stability. .

  As a result of intensive studies to achieve the above object, the present inventor has found that poly (meth) acrylic acid in an oil-in-water cosmetic containing 10% or more by weight of wax based on the total amount of cosmetics. By combining salt, carbon black, volatile alcohol, polyhydric alcohol, and, in some cases, fibers, it has an unprecedented high long effect, volume effect, uniform blackness without turbidity, and storage stability. The present inventors have found that an oil-in-water type cosmetic for cosmetics having good properties can be obtained, and have completed the present invention.

That is, the invention of claim 1 of the present invention comprises the following components (A) to (D):
(A): poly (meth) acrylate (B): carbon black (C): volatile alcohol (D): containing polyhydric alcohol and 10% by mass (hereinafter,%) with respect to the total amount of cosmetics And an oil-in-water cosmetic for cosmetics characterized in that it contains the above-mentioned wax, and the invention of claim 2 further comprises fibers as component (E). It is a cosmetic for water mold.

  INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide an oil-in-water vaginal cosmetic that has an unprecedented high long effect, volume effect, uniform blackness without turbidity, and good storage stability.

  Hereinafter, embodiments of the present invention will be described in detail.

  The poly (meth) acrylate of component (A) used in the present invention is an ammonium salt, potassium salt, sodium salt of a polymer of acrylic acid and / or methacrylic acid or a mixture thereof acrylic acid and / or methacrylic acid The sodium salt of the polymer or a mixture thereof can be used without particular limitation as long as it is generally used in cosmetics and quasi drugs. The component (A) is preferably sodium polyacrylate having an average molecular weight of 2 million or more in view of volume effect and long effect, and more preferably partially neutralized product. This sodium polyacrylate partially neutralized product is a part of sodium polyacrylate that has been neutralized with an alkali. Examples of alkali include alkali metal salts such as sodium hydroxide and potassium hydroxide, ammonia, and aqueous ammonia. Primary, secondary or tertiary alkylamines such as triethanolamine, dimethylamine, diethylamine, trimethylamine, triethylamine, triisopropanolamine, monoethanolamine, diethanolamine, diisopropanolamine, polyethanolamine, etc., or Examples include primary, secondary or tertiary alkanolamines. As a method for producing a partially neutralized poly (sodium acrylate), a method of partially neutralizing sodium polyacrylate later, and a polymerization after neutralizing a part of acrylic acid at the time of monomer preparation during polymerization However, either method can be applied in the present invention. Examples of such commercially available products include Aronbis series (manufactured by Nippon Pure Chemical Co., Ltd.).

  In the present invention, one or more of these can be selected and used as appropriate, and the blending amount is preferably 0.001 to 3.0% based on the total amount of the cosmetic. More preferably, it is 0.01 to 1.0%. If it exceeds 3.0%, it may be difficult to uniformly disperse the pigment particles, which is not preferable.

  The carbon black of component (B) used in the present invention is not particularly limited as long as it is generally used in cosmetics, but in order to obtain more uniform dispersibility and blackness, water is used as a solvent. It is desirable to use a dispersion in the form of an aqueous dispersion. Furthermore, it is more preferable in terms of obtaining uniform dispersibility if the dispersion diameter of 90% or more of the pigment particles is controlled to 0.7 μm or less. Specific examples thereof include those described in JP-A-2002-363031 and the like. In addition, also about the definition of said aqueous dispersion and a dispersion diameter, it follows the definition described in this Unexamined-Japanese-Patent No. 2002-363031. Examples of such commercially available products include the TNP series (manufactured by Mikuni Dye Co., Ltd.).

In the present invention, the blending amount is preferably 0.01 to 5.0%, more preferably 0.1 to 3.0%, based on the total amount of cosmetics, as a pure carbon black. Within this range, a more excellent volume effect, uniform and turbid blackness can be obtained, and excellent storage stability can be obtained, which is preferable.

  The volatile alcohol of component (C) used in the present invention is not particularly limited as long as it is generally used in cosmetics, and any one can be used. In the present specification, “volatile” means that 97% or more tends to evaporate within one hour when it comes into contact with the skin or eyelashes. That is, this component (C) is an alcohol having a vapor pressure of preferably 0.7 kPa to 40 kPa in a liquid state under conditions of a temperature (30 ° C.) corresponding to the skin and atmospheric pressure (1 atm). Examples include ethanol, isopropanol, phenoxyethanol, phenoxyisopropanol, and the like. These are usually used in cosmetics as a refreshing agent, a solvent, and an antibacterial agent, but in the present invention, in the oil-in-water type cosmetics containing 10% or more of waxes, the components (A) to ( Only when combined in combination with (D), an oil-in-water cosmetic for cosmetics that has an unprecedented high long effect and volume effect, uniform blackness without turbidity, and good storage stability is obtained. It has been found that it is completely different from the conventional purpose of use.

  In the present invention, one or more of these can be selected and used as appropriate, but phenoxyethanol is most preferred. The blending amount is preferably 0.01 to 5.0%, more preferably 0.1 to 3.0% based on the total amount of the cosmetic. Within these ranges, a better long effect and volume effect can be obtained.

  The polyhydric alcohol of component (D) used in the present invention is not particularly limited as long as it is generally used in cosmetics, and any one can be used. For example, ethylene glycol, propylene glycol, dipropylene glycol, 1,3-butylene glycol, diethylene glycol, triethylene glycol, 1,4-butylene glycol (dihydric alcohol), glycerin, trioxyisobutane (trihydric alcohol), erythritol, Examples include pentaerythritol (tetrahydric alcohol), xylit, adnit (pentahydric alcohol), allozulcit, sorbitol, sorbitol liquid, mannitol (hexahydric alcohol), and the like.

  In the present invention, one or more of these can be selected and used as appropriate, but dipropylene glycol and / or 1,3-butylene glycol is more preferably used. The blending amount is preferably 0.1 to 15%, more preferably 1.0 to 10% based on the total amount of the cosmetic. Within these ranges, a more excellent volume effect and a long feeling can be obtained.

  The fiber of component (E) used in the present invention is not particularly limited as long as it is generally used in cosmetics, and any fiber can be used. Examples thereof include synthetic fibers such as nylon and polyester, artificial fibers such as rayon, natural fibers such as cellulose, semi-synthetic fibers such as acetate artificial silk, and the like. In addition, those fibers treated with general oils, silicone oils, fluorine compounds, surfactants and the like can also be used. Among these, when using nylon, the length is preferably 1.0 to 6.0 mm, and more preferably 3.0 to 5.0 mm. The thickness is preferably 0.1 to 20 denier, more preferably 2.0 to 10 denier.

In the present invention, one or more of these can be selected and used as appropriate. The blending amount is preferably 0.1 to 10%, more preferably 0.5 to 5.0% based on the total amount of the cosmetic. Within these ranges, a better long effect and volume effect can be obtained.

  Further, the waxes used in the present invention can be used without particular limitation as long as they are generally used in cosmetics. Specifically, paraffin wax, ceresin wax, microcrystalline wax, polyethylene wax, ethylene / propylene copolymer, α-olefin oligomer, montan wax, Fischer-Tropsch wax, owl, beeswax, carnauba wax, candelilla wax, gay wax, rice bran wax Acrylic silicone graft copolymers and the like.

  In the present invention, one or more of these can be selected and used as appropriate. Moreover, the compounding quantity is 10% or more on the basis of cosmetics total amount, Preferably it is 15-35%. Within these ranges, a good volume effect can be obtained.

  The oil-in-water cosmetic for cosmetics of the present invention can be used in various forms, and is blended into a dosage form to be applied to eyelashes such as solid or liquid mascara, mascara base, mascara overcoat, etc. Can be manufactured.

  In the present invention, in addition to the above components, a film-forming polymer emulsion may be used alone or in combination of two or more, as long as the present invention is not impaired. For example, polyvinyl acetate emulsion, polyacrylate emulsion, polyvinyl chloride emulsion, alkyl (meth) acrylate / styrene copolymer emulsion, alkyl (meth) acrylate copolymer emulsion, alkyl (meth) acrylate / acetic acid Examples thereof include vinyl copolymer emulsions, vinyl pyrrolidone / styrene copolymer emulsions, and silicone polymer emulsions.

In the present invention, pigments other than the carbon black of component (B) can be used to the extent that the present invention is not impaired. These may be any as long as they are usually used in cosmetics. The form is not particularly limited by the shape such as plate shape, spindle shape, needle shape, particle diameter, particle structure such as porous or nonporous. For example, inorganic powders, glitter powders, organic powders, pigment powders, composite powders and the like can be used, and one or a combination of two or more can be used. It may be blended in either. Specifically, conger, ultramarine, bengara, yellow iron oxide, black iron oxide, titanium oxide, zinc oxide, titanium / titanium oxide sintered product, cerium oxide, magnesium oxide, zirconium oxide, antimony oxide, magnesium carbonate, calcium carbonate , Chromium oxide, chromium hydroxide, aluminum silicate, magnesium silicate, calcium silicate, barium silicate, magnesium aluminum silicate, magnesium magnesium silicate, mica, synthetic mica, synthetic sericite, sericite, talc, muscovite , Phlogopite, red mica, biotite, kaolin, barium sulfate, bentonite, smectite, diatomaceous earth, hydroxyapatite, boron nitride and other inorganic powders, bismuth oxychloride, titanium mica, titanium dioxide coated bismuth oxychloride, oxidation Iron coated mica, iron oxide coated Titanium mica, bitumen coated mica titanium, carmine coated mica titanium, organic pigment coated mica titanium, iron oxide / titanium oxide coated synthetic phlogopite, fish phosphorus foil, titanium dioxide coated glass flake, polyethylene terephthalate / aluminum / epoxy laminated powder, polyethylene terephthalate・ Polyolefin laminated film powder, polyethylene terephthalate / polymethyl methacrylate laminated film powder, glitter powder such as titanium dioxide coated glass flakes, polyamide resin, polyethylene resin, polyacrylic resin, polyester resin, fluorine resin, Cellulosic resin, polystyrene resin, copolymer resin such as styrene-acrylic copolymer resin, organic polymer resin powder such as polypropylene resin, silicone resin and urethane resin, organic powder such as N-acyl lysine , Natural organic powders such as starch, silk powder, cellulose powder, pigment powders such as organic tar pigments, lake pigments of organic dyes, metal powders such as aluminum powder, gold powder, silver powder, fine particle titanium oxide coated mica Examples thereof include composite powders such as titanium, fine particle zinc oxide-coated mica titanium, barium sulfate-coated mica titanium, titanium oxide-containing silicon dioxide, and zinc oxide-containing silicon dioxide. Further, these dyes and pigments may be coated on the surface with silicones, lauroyl lysine, stearoyl glutamate, perfluoroalkyl phosphate diethanolamine salt, polyethylene, other oils, and the like.

  The vaginal cosmetics of the present invention are various components generally used in cosmetics, for example, solid or semi-solid, as necessary and within the range not impairing the effects of the present invention, in addition to the above-mentioned components. Liquid oily ingredients, moisturizers, thickeners, water-soluble polymers, fragrances, bactericides, antiseptics, antioxidants, pH adjusters, chelating agents, UV absorbers, solvents, anti-inflammatory agents, anti-androgens, Hair restorers, antioxidants, refreshing agents, herbal extracts, vitamins, cuticle protection ingredients, etc. can be added in a timely manner.

  The oily components other than waxes that can be used in the present invention are not particularly limited as long as they are generally used in cosmetics, and any of them can be used. For example, fatty acids such as stearic acid, palmitic acid, 2-ethylhexanoic acid, undecylenic acid, palmitooleic acid, isostearic acid, ricinoleic acid, linoleic acid, oleic acid, macadamia nut oil, olive oil, camellia oil, avocado oil, corn oil , Castor oil, sesame oil, safflower oil, cottonseed oil, soybean oil, jojoba oil, palm oil, palm oil, hardened palm oil, hardened oil, hardened castor oil, egg yolk oil, rapeseed oil, wheat germ oil, peanut oil, rice bran oil Oils and fats, isononyl isononanoate, isotridecyl isononanoate, cetyl octanoate, isopropyl myristate, octyl palmitate, isopropyl palmitate, octyldodecyl myristate, diisostearyl malate, glyceryl trioctanoate, tri (capryl / capric acid) Glicelli , (Capryl / caprin / myristin / stearate) triglyceryl, phytosteryl oleate, octyldodecyl lactate, isopropyl istearate, glyceryl tribehenate, rosin acid pentaerythritol ester, neopentyl glycol dioctanoate, cholesterol fatty acid ester, N-lauroyl -L-glutamate di (cholesteryl, behenyl, octyldodecyl), esters such as macadamia nut fatty acid cholesteryl, macadamia nut oil fatty acid phytosteryl, cetyl alcohol, stearyl alcohol, lauryl alcohol, isostearyl alcohol, lanolin alcohol, octyldodecanol, capryl alcohol , Higher alcohols such as oleyl alcohol, light liquid isoparaffin, liquid paraffin , Hydrocarbons such as squalane, petrolatum, polybutene, isododecane, silicone oils such as low polymerization dimethylpolysiloxane, high polymerization dimethylpolysiloxane, methylphenylpolysiloxane, fluorine-modified polysiloxane, perfluorodecane, perfluorooctane , Fluorine oils such as perfluoropolyether, esters of fatty acids and monohydric alcohols such as 2-ethylhexyl palmitate, cetyl 2-ethylhexanoate, isotridecyl isononanoate, dicaprate neopentyl glycol, di-2-ethylhexanoic acid Fatty acids such as neopentyl glycol and polyethylene glycol stearate, and esters of glycols, and fatty acids such as trimethylolpropane triisostearate and pentaerythritol tetra-2-ethylhexanoate Esters of dihydric alcohols such as monohydric alcohol esters, esters with hydroxyl groups such as diisostearyl malate, dibasic acid esters such as di-2-ethylhexyl succinate, dialkyl carbonate, macadamia nut oil fatty acid cholesteryl, macadamia nut oil fatty acid phytosteryl and the like Examples thereof include lanolin derivatives such as esters, liquid lanolin, lanolin acetate, lanolin fatty acid isopropyl, and lanolin alcohol.

  EXAMPLES Hereinafter, although an Example demonstrates this invention further in detail, the technical scope of this invention is not limited by these Examples. In addition, the numerical value in a table | surface represents content (%). Prior to the examples, the evaluation methods employed in each example will be described.

(1) Storage Stability Evaluation Test Method The vaginal cosmetic prepared by a predetermined method is left in a reciprocating thermostat at 1 cycle / day at 5 to 40 ° C., and the storage stability after 3 weeks is evaluated as follows. Evaluation was made according to criteria.
No separation or aggregation; ◎
There is very little separation and aggregation; ○
There is separation and aggregation; △
Completely separated; ×

(2) Sensory evaluation test method 20 female panelists evaluated the long effect after application to eyelashes, the volume effect, and the blackness with no turbidity according to the following evaluation criteria.
(Evaluation criteria)
More than 17 people answered good
１２ 12-16 people; ○
〜 8-11 people;
７ 7 or less; ×
(Evaluation item)
a. Long effect b. Volume effect c. Uniform and non-turbid black

・ Preparation method for oil-in-water cosmetics
Production method: (1) to (9) are mixed, heated to 90 ° C. to dissolve and homogenize, and this is used as an oil layer. Further, after the components (11) to (23) are dissolved by heating at 80 ° C., the pigments (28) to (37) are added, and after mixing (10), the components of the dissolved oil layer are added and homogenized. Emulsify with a mixer. And it cools to room temperature, adds the component of (24)-(27), and stirs. This is filled in a predetermined airtight container to obtain the desired oil-in-water cosmetic for cosmetics.

  Table 1 shows the component composition of each of the above compositions and the evaluation test results.

(7): ANTARON V-220 (manufactured by ISP)
(17): Carbopol 940 (manufactured by Goodrich Chemical)
(19): Polyox WSR (manufactured by Union Carbide)
(20), (21): Aronbis series (Nippon Pure Chemicals)
(22): Tamol 850 (Rhom & Haas)
(24): Vinibrand GV-5651 (manufactured by Nissin Chemical Industry Co., Ltd.)
(25): Iodosol GH800 (manufactured by NSC Japan)
(31), (32): TNP series (manufactured by Gokoku Color Co., Ltd.)

  As shown in Table 1, Examples 1 to 4 of the present invention are clearer than those of Comparative Examples 1 to 5 in all points of storage stability, long effect, volume effect, uniform and non-turbid blackness. Is excellent.

  As described above, according to the present invention, it is possible to provide an oil-in-water vaginal cosmetic having excellent long effect, volume effect, uniform and non-turbid blackness, and good storage stability. In a dosage form applied to eyelashes such as mascara, it can be produced according to a conventional method.

Claims (3)

The following components (A) to (D)
(A): Poly (meth) acrylate (B): Carbon black (C): Ethanol and / or phenoxyethanol (D): Contains 2 to 6 valent alcohols and 10% by mass with respect to the total amount of the cosmetic % Oil-in-water cosmetics characterized by containing at least wax. The following components (A) to (D)
(A): Poly (meth) acrylate
(B): Carbon black
(C): Ethanol and / or phenoxyethanol
(D): 2-6 valent alcohol
And an oil-in-water cosmetic for salmon containing 10% by mass or more of wax with respect to the total amount of the cosmetic (except when high-polymerization polyethylene glycol is included). Furthermore, as a component (E), a fiber is contained, The cosmetics for oil-in-water type cocoons of Claim 1 or 2 characterized by the above-mentioned.