JP5368042B2 - Oil-in-water cosmetic for cosmetics - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an oil-in-water type eyelash cosmetic that has unprecedentedly high gloss and blackness, exhibits dramatic cleansing properties for lukewarm water and has good preservation stability. <P>SOLUTION: The oil-in-water type eyelash cosmetic comprises the following components (A)-(E): (A) an alkyl acrylate-vinyl acetate copolymer emulsion, (B) an alkyl acrylate copolymer emulsion, (C) carbon black, (D) a polyhydric alcohol, and (E) at least one water-soluble film-forming agent selected between polyvinyl pyrrolidone and polyvinyl alcohol, where the mass ratio in terms of the solid content of the component (A) to the component (B), (A):(B), is 3:1 to 1:3 and the total amount of the component (D) is 0.1-4.0 mass% based on the whole cosmetic. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a vaginal cosmetic such as mascara having excellent characteristics, and more particularly to an oil-in-water vaginal cosmetic excellent in gloss, blackness, cleansing properties, and storage stability.

  The needs for vaginal cosmetics such as mascara have been diversified year by year, and in recent years, various functions other than basic makeup effects such as long, volume and curling power have been required. In particular, high performance has been demanded for luster and blackness for making the eyes glossy, and cleansing properties for lukewarm water for easy removal during bathing.

  The manufacturers have made various efforts to meet these needs. For example, with a mascara (see Patent Document 1) whose gloss is improved by using a specific film-forming agent or water at 25 ° C. or lower. A vaginal cosmetic (see Patent Document 2) and the like for easy removal has been developed.

  However, in any of the inventions, the cleansing effect in lukewarm water is not sufficient. In addition, the gloss and blackness that affect the impression level of the eyes are not as effective as the actual feeling of the consumer, not on the numerical value by the measuring device, and the current high consumer needs have not been met. In addition, in any of the inventions, the storage stability is not good because the use of a specific resin tends to give a gloss.

In general, in order to achieve basic cosmetic effects such as long, volume, curl, etc., it is necessary to add a lot of oily components, mainly waxes and fatty acids. There is also a problem that cleansing properties and storage stability with respect to hot water deteriorate when the amount is increased.
Special table 2003-521489 gazette JP 2006-257052 A

  The object of the present invention is to provide an oil-in-water cosmetic for cosmetics that has an unprecedented superior effect in luster and blackness that impresses the eyes, and cleansing properties against lukewarm water, and that also has good storage stability It is to be.

  As a result of intensive studies to achieve the above-mentioned object, the present inventor has a high cleanliness and blackness, and a dramatic cleansing property with respect to lukewarm water, which are not conventional, only when specific components are blended under specific conditions. The present inventors have found that an oil-in-water type cosmetic for cosmetics that can be exerted and has excellent storage stability can be obtained, and the present invention has been completed.

That is, the present invention provides the following components (A) to (E);
(A) alkyl acrylate / vinyl acetate copolymer emulsion (B) alkyl acrylate copolymer emulsion (C) carbon black (D) polyhydric alcohol (E) polyvinyl pyrrolidone, at least one selected from polyvinyl alcohol The water-soluble film forming agent is contained, and the mass ratio of the component (A) and the component (B) in terms of solid content is (A) :( B) = 3: 1 to 1: 3, and the component (D) is an oil-in-water cosmetic for cosmetics, characterized in that the blending amount is 0.1 to 4.0% by mass relative to the total amount of cosmetic.

  According to the present invention, an oil-in-water cosmetic for salmon having a high gloss and blackness and a dramatic cleansing property with respect to lukewarm water, which is unprecedented, and having good storage stability can be obtained.

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

  The component (A) alkyl acrylate / vinyl acetate copolymer emulsion used in the present invention is mainly composed of a monomer mixture comprising an alkyl methacrylate monomer and / or an alkyl acrylate monomer and a vinyl acetate monomer. These are usually emulsions containing a resin obtained by emulsion polymerization of these and water, and can be used without particular limitation as long as they are generally used in cosmetics.

  In the present invention, one or more of these can be selected and used from time to time, and the blending amount is 0.1 to 40.0% by mass (hereinafter simply referred to as the cosmetic total amount). % Is abbreviated as%), more preferably 1.0 to 30.0%, and still more preferably 3.0 to 25.0%. When the blending amount is 0.1% or more, a sufficient effect is obtained, and when the blending amount is 40.0% or less, the cosmetic itself is not whitish and high gloss and blackness can be exhibited.

  The component (B) alkyl acrylate copolymer emulsion used in the present invention mainly comprises a monomer mixture comprising methacrylic acid and / or an acrylic acid monomer, and an alkyl methacrylate monomer and / or an alkyl acrylate monomer. As a component, it usually has a form of an emulsion containing a resin obtained by emulsion polymerization of these and water, and can be used without particular limitation as long as it is generally used in cosmetics.

  As the component (B) alkyl acrylate copolymer emulsion used in the present invention, one or two or more kinds can be selected and used as appropriate, and the blending amount is 0.1 to 0.1 on the basis of the total amount of the cosmetic. It is preferable in it being 40.0%, More preferably, it is 1.0-30.0%, More preferably, it is 3.0-25.0%. When the blending amount is 0.1% or more, a sufficient effect is obtained, and when the blending amount is 40.0% or less, the cosmetic itself is not whitish and high gloss and blackness can be exhibited.

  In the present invention, in addition to the above resin emulsion, one or two or more resin emulsions may be used in combination as long as the effects of the present invention are not impaired. For example, polyvinyl acetate emulsion, polyvinyl chloride emulsion, alkyl (meth) acrylate / styrene copolymer emulsion, vinyl pyrrolidone / styrene copolymer emulsion, silicone polymer emulsion, acrylamide polymer emulsion, urethane polymer emulsion, etc. Can be mentioned.

  In the present invention, the mass ratio of the components (A) and (B) in terms of solid content is (A) :( B) = 3: 1 to 1: 3, preferably (A) :( B ) = 3: 2 to 1: 2. Within these ranges, high gloss and blackness, excellent cleansing properties against lukewarm water can be exhibited, and good storage stability can be obtained.

  In the present specification, “warm water” means water at 30 ° C. to 45 ° C.

  Furthermore, in the present invention, when the glass transition temperature (Tg) of any of the components (A) and (B) is less than 0 ° C. and the other is 0 ° C. or more, from the viewpoint of cleansing properties and storage stability. desirable. In particular, the Tg of the component (A) is less than 0 ° C. and the Tg of the component (B) is preferably 0 ° C. or more, and the Tg of the component (A) is less than −5 ° C., and the component (B) The Tg is more preferably 10 ° C. or higher. In addition, when the difference in Tg between at least one component (A) and at least one component (B) is in the range of 20 ° C. to 60 ° C., the effect of the present invention described above is maximized. preferable.

  In the present specification, “glass transition temperature (Tg)” means a glass transition temperature of a polymer, and a differential scanning calorimeter generally used by those skilled in the art (for example, DSC6200 manufactured by Seiko Instruments Inc.). Indicates the actual value measured by.

  The carbon black of component (C) used in the present invention can be used without any particular limitation as long as it is generally used in cosmetics. In the present invention, it is preferable from the viewpoint of gloss and blackness that the dispersion diameter of 90 vol% or more of carbon black particles is controlled to 0.6 μm or less in a state where it is a final product.

  The component (C) carbon black can be used by appropriately selecting one or more kinds, and the blending amount thereof is preferably 0.01 to 10.0% based on the total amount of the cosmetic, More preferably, it is 0.1-5.0%, More preferably, it is 1.0-4.0%. When the blending amount is 0.01% or more, a sufficient effect is obtained in terms of gloss and blackness, and when the blending amount is 10.0% or less, the storage stability of the cosmetic itself is preferable.

  The polyhydric alcohol of component (D) 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 from time to time, but preferably selected from dipropylene glycol and 1,3-butylene glycol. More preferred is 3-butylene glycol. Moreover, the compounding quantity is 0.1-4.0% on the basis of cosmetics total amount, Preferably it is 0.5-3.0%. Within these ranges, excellent cleansing properties against lukewarm water and good storage stability can be obtained.

  The at least one water-soluble film-forming agent selected from the component (E) polyvinyl pyrrolidone and polyvinyl alcohol is not particularly limited as long as it is generally used in cosmetics, regardless of the degree of polymerization. Any one can be used.

  Of these, polyvinylpyrrolidone is preferably used as the water-soluble film forming agent of component (E). Moreover, it is preferable that the compounding quantity is 0.01 to 5.0% on the basis of cosmetics total amount, More preferably, it is 0.1 to 3.0%. Within these ranges, excellent cleansing properties against lukewarm water and good storage stability can be obtained.

The oil-in-water cosmetics for eyelashes of the present invention can be used in various forms, and are applied to dosage forms applied to eyelashes such as solid or liquid mascara, mascara base, mascara overcoat, etc. can do.

  In the present invention, pigments other than the carbon black of component (C) can also be used as long as the effects of the present invention are 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. Oil layer and water layer 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, phlogopite, 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 Mother titanium, 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, silver coated glass flake, gold coated glass flake, oxidation Bright powder such as iron-coated glass flake polyethylene terephthalate / aluminum / polyurethane laminated powder, polyethylene terephthalate / polyolefin laminated film powder, polyethylene terephthalate / polymethyl methacrylate laminated film powder, polyamide resin, polyethylene resin, polyacrylic resin Organic resins such as polyester resins, fluorine resins, cellulose resins, polystyrene resins, copolymer resins such as styrene-acrylic copolymer resins, polypropylene resins, silicone resins, urethane resins, etc. Resin powder, organic powders such as N-acyl lysine, natural organic powders such as starch, silk powder and cellulose powder, organic tar pigments, pigment powders such as organic pigment lake pigments, aluminum powder, gold powder Metal powder such as silver powder, fine particle titanium oxide-coated mica titanium, fine particle zinc oxide-coated mica titanium, barium sulfate-coated mica titanium, titanium oxide-containing silicon dioxide, zinc oxide-containing silicon dioxide, and the like. 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 oil-in-water cosmetic for cosmetics of the present invention contains various components commonly used in cosmetics, for example, eyelashes, in addition to the above-described components, as long as it is necessary and does not impair the effects of the present invention. Long-lasting fibers, solid, semi-solid or liquid oil components, moisturizers, thickeners, water-soluble polymers, fragrances, bactericides, preservatives, antioxidants, pH adjusters, chelating agents, UV absorbers Solvents, anti-inflammatory agents, anti-androgens, hair restorers, antioxidants, refreshing agents, herbal extracts and vitamins, cuticle protecting ingredients, etc. can be blended in a timely manner.

  The fiber that can be 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.

The oily component that can be used in the present invention is not particularly limited as long as it is generally used in cosmetics, and any component can be used. For example, waxes such as paraffin wax, ceresin wax, microcrystalline wax, polyethylene wax, ethylene / propylene copolymer, α-olefin oligomer, montan wax, Fischer-Tropsch wax, moscow, beeswax, carnauba wax, candelilla wax, gay wax, rice bran wax, etc. , Organic silicone resins such as acrylic silicone / graft copolymer, trimethylsiloxysilicic acid, eicosene / vinyl pyrrolidone copolymer, oil-soluble resins such as candelilla wax resin, rosin resin, stearic acid, palmitic acid, 2 -Fatty acids such as 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, hydrogenated palm oil, hydrogenated oil, hydrogenated castor oil, egg yolk oil, rapeseed oil, wheat Oils and fats such as germ oil, peanut oil, rice bran oil, isononyl isononanoate, isotridecyl isononanoate, cetyl octanoate, isopropyl myristate, octyl palmitate, isopropyl palmitate, octyldodecyl myristate, diisostearyl malate, glyceryl trioctanoate , Tri (capryl / capric acid) glyceryl, (capryl / caprin / myristin / stearic acid) triglyceryl, phytosteryl oleate, octyldodecyl lactate, isopropyl isostearate, glyceryl tribehenate, pentaerythritol diphosphate Ester, neopentyl glycol dioctanoate, cholesterol fatty acid ester, N-lauroyl-L-glutamate di (cholesteryl, behenyl, octyldodecyl), macadamia nut oil fatty acid cholesteryl, macadamia nut oil fatty acid phytosteryl ester, cetyl alcohol, stearyl alcohol, lauryl Alcohol, isostearyl alcohol, lanolin alcohol, octyldodecanol, capryl alcohol, oleyl alcohol and other higher alcohols, light liquid isoparaffin, liquid paraffin, squalane, petrolatum, polybutene, isododecane and other hydrocarbons, low degree of polymerization dimethylpolysiloxane, high Degree of polymerization Silicone oil such as dimethylpolysiloxane and methylphenylpolysiloxane, fluorine-modified polysilos Fluorine oil such as sun, perfluorodecane, perfluorooctane, perfluoropolyether, fatty acid and monohydric alcohol ester such as 2-ethylhexyl palmitate, cetyl 2-ethylhexanoate, isotridecyl isononanoate, dicaprate neo Esters of fatty acids and glycols such as pentyl glycol, neopentyl glycol di-2-ethylhexanoate, polyethylene glycol stearate, trimethylolpropane triisostearate, pentaerythritol tetra-2-ethylhexanoate, and esters of polyhydric alcohols , Esters having a hydroxyl group such as diisostearyl malate, dibasic acid esters such as di-2-ethylhexyl succinate, dialkyl carbonate, macadamia nut oil fatty acid cholesteryl, macadamiana Tsu oil fatty phytosteryl like esters and liquid lanolin fatty acids and sterols, lanolin acetate, lanolin fatty acid isopropyl, and the like lanolin derivatives such as lanolin alcohol. These are blended as oil tank components. In the present invention, the total blending amount is preferably 17 to 30%, more preferably 19 to 25% based on the total amount of the cosmetic.

  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 1 month is evaluated as follows. Evaluation was made according to criteria.
No separation, aggregation, or solidification;
There is very little separation, aggregation and solidification; ○
Separation, aggregation, solidification; △
Completely separated or solidified; ×

(2) Sensory Evaluation Test Method Twenty female panelists evaluated the eye impression (gloss and blackness) after application to eyelashes and cleansing properties against lukewarm water (38 ° C. tap water) according to the following evaluation criteria. In addition, about the evaluation of the cleansing property with respect to lukewarm water, after immersing 2.0 g of tap water set at 38 ° C. in a commercially available cotton and interposing the eyelashes after application for 15 seconds, the mascara remaining on the eyelashes was used. evaluated.
(Evaluation criteria)
More than 17 people answered good
12-16 people who answered good; ○
8-11 people who answered that it was good;
The number of people who answered that it is good is 7 or less; ×
(Evaluation item)
a. Eye impression (shiny)
b. Eye impression (blackness)
c. Cleansing properties against lukewarm water

Preparation method / manufacturing method of oil-in-water type cosmetic for salmon: (1) to (5) are mixed, heated to 90 ° C. to dissolve and homogenize, and this is referred to as “oil tank”.
Next, after the components (6) to (12) are heated and dissolved at 90 ° C., the pigments (19) to (20) are added, and the oil tank components previously dissolved are added to the homomixer. To emulsify. And it cools, stirring to room temperature, the component of (13)-(18) and (21) is added, and it stirs again. 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.

  As shown in Table 1, in Examples 1 to 4 of the present invention, the gloss and blackness that impresses the eyes, the cleansing property against lukewarm water, and the storage stability are all that of Comparative Examples 1 to 7. Obviously better than the ones.

  In the following composition of ingredients, an oil-in-water cosmetic for cosmetics was prepared in accordance with a conventional method, and the above evaluation tests were carried out. As a result, gloss and blackness that impressed the eyes, cleansing properties against lukewarm water, and storage stability. Excellent results were shown in all respects.

Example 5 (%)
・ Polyethylene wax 2.0
・ Carnauba Arrow 3.0
・ Beeswax 5.0
・ Paraffin wax 2.0
・ Stearic acid 3.0
・ Cetostearyl alcohol 3.0
・ Sucrose polystearate1.0
・ Triethanolamine 1.0
・ Purified water residue ・ 1,3-butylene glycol 1.0
・ Polyvinylpyrrolidone 1.0
(PVP K-30, manufactured by BASF)
・ Hydroxyethylcellulose 0.5
・ Alkyl acrylate / vinyl acetate copolymer emulsion 5.0
(Tg = 20 ° C .: solid content 50%)
・ Alkyl acrylate copolymer emulsion 10.0
(Tg = -14 ° C .: solid content 50%)
-Polyvinyl acetate emulsion (solid content 40%) 10.0
(Viniblanc GV-5651, manufactured by Nissin Chemical Industry Co., Ltd.)
・ Carbon black 2.0
・ Nylon powder (2mm, 6 denier) 1.0
・ Methyl paraben appropriate amount

Example 6 (%)

・ Polyethylene wax 1.0
・ Carnauba wax 5.0
・ Beeswah 8.0
・ Paraffin wax 3.0
・ Stearic acid 5.0
・ Cetostearyl alcohol 2.0
・ Eicosene-vinylpyrrolidone copolymer 0.5
(ANTARON V-220, manufactured by ISP)
・ Triethanolamine 0.5
・ Purified water balance ・ Dipropylene glycol 1.0
1,3-butylene glycol 1.0
・ Glycerin 1.0
・ Polyvinyl alcohol 2.0
(PVA-EG40, manufactured by Nippon Synthetic Chemical Industry Co., Ltd.)
・ Hydroxyethylcellulose 0.5
・ Alkyl acrylate / vinyl acetate copolymer emulsion 10.0
(Tg = 20 ° C .: solid content 50%)
・ Alkyl acrylate copolymer emulsion 15.0
(Tg = -14 ° C .: solid content 50%)
・ Carbon black 1.0
Hydrophobized silicic acid anhydride 0.1
(AEROSIL R972, manufactured by Nippon Aerosil Co., Ltd.)
・ Ethylparaben appropriate amount

Claims (6)

The following components (A) to (E);
(A) alkyl acrylate / vinyl acetate copolymer emulsion (B) alkyl acrylate copolymer emulsion (C) carbon black (D) polyhydric alcohol (E) polyvinyl pyrrolidone, at least one selected from polyvinyl alcohol The water-soluble film forming agent is contained, and the mass ratio of the component (A) and the component (B) in terms of solid content is (A) :( B) = 3: 1 to 1: 3, and the component An oil-in-water cosmetic for cosmetics, wherein the blending amount of (D) is 0.1 to 4.0% by mass relative to the total amount of cosmetic. 2. The oil-in-water vaginal cosmetic according to claim 1, wherein the component (E) is polyvinyl pyrrolidone. The oil-in-water cosmetic for cosmetics according to claim 1 or 2 , wherein the blending amount of the oil component is 17 to 30% by mass relative to the total amount of the cosmetic. Component (A) and one of the glass transition temperature of component (B) (Tg) is less than 0 ℃, either of claims 1-3, characterized in that the other Tg is 0 ℃ least 1 The oil-in-water vaginal cosmetic according to Item. The underwater according to any one of claims 1 to 4 , wherein a difference in Tg between at least one component (A) and at least one component (B) is 20 to 60 ° C. Oil-type cosmetic for salmon. The compounding amount of the component (A) is 0.1 to 40.0% by mass, and the compounding amount of the component (E) is 0.01 to 5.0% by mass. The oil-in-water type salmon cosmetic according to any one of the above.