JP6285231B2 - Oil-in-water emulsified lip cosmetic - Google Patents

Description

  The present invention relates to an oil-in-water emulsified lip cosmetic containing a water-insoluble film-forming polymer emulsion, a solid oil or a semi-solid oil, and a phospholipid, and more specifically, transfer resistance and hot water resistance. The present invention relates to an oil-in-water emulsified lip cosmetic that is excellent in sensation and further has a reduced contraction feeling and is less noticeable in the vertical lines of the lips.

  Conventional lipsticks are often oily lipsticks composed of various oils, waxes, coloring materials, and the like, and the applied cosmetic film has a drawback of being easily broken by food and drink. In particular, when a drink is taken, a cosmetic film easily adheres to a cup, a plastic bottle or the like (low transfer resistance), which is a major cause of makeup collapse. Also, among them, when drinking a warm drink, makeup collapse becomes noticeable, and there is a problem that a cup or the like is soiled by lipstick. The lips are one of the most intensely moving parts of the face, and have a feature that the lip surface expands and contracts with the movement of the mouth. In addition, since the lips are thin and sensitive, it is easy to feel a contraction feeling derived from a decorative film. Furthermore, lips are known to have deeper vertical folds compared to the skin, and vertical folds are easily noticeable if there is not a sufficient thickness of the cosmetic film.

  Various studies have been made in the past in order to eliminate these drawbacks and improve makeup. Examples of the oily type are anti-slip cosmetic compositions in which a silicone resin, wax and powder are combined with a volatile solvent (see, for example, Patent Document 1), fluorine-modified silicone and alkyl-modified silicone in a non-aqueous polymer dispersion. There is a lipstick composition (see Patent Document 2, for example). Moreover, as an oil-in-water emulsified type, an oil-in-water emulsified base cosmetic that combines a specific polyisobutylene with a volatile hydrocarbon oil, a pigment, a water-swellable thickener, an aqueous medium, etc. (see, for example, Patent Document 3) There is.

JP-A-6-199630 JP 2000-281535 A JP 2013-35767 A

However, the technique of Patent Document 1 has a drawback in that since the silicone resin or wax film is strong, the decorative film has poor flexibility and a feeling of contraction is easily felt. Further, when a large amount of a volatile solvent is contained instead of the non-volatile liquid oil in order to improve transfer resistance, there is also a problem that the viscosity is lowered and the film thickness at the time of coating becomes insufficient. In the technique of Patent Document 2, since the volatile oil agent has a slow drying speed, it takes time until the function is manifested, the transfer resistance is poor, and the film becomes thin as the volatile oil agent volatilizes. There was a drawback of being conspicuous. The technology of Patent Document 3 contains polyisobutylene that forms a film on a fat layer that exists in the form of oil droplets in water, but due to the bias of oil droplets in the aqueous component and drying process in the outer layer, The film tends to be a non-uniform film, which is insufficient as a film having transfer resistance and hot water resistance. In addition, both techniques have the disadvantage that makeup is poor when a hot drink is taken.
Thus, the problem to be solved by the present invention is to improve the resistance to hot water that can be tolerated even when a hot drink is drunk, the resistance to transfer in daily life, the lack of contraction, An object of the present invention is to provide an oil-in-water emulsified lip cosmetic that is inconspicuous.

  In view of this situation, the present inventors diligently studied to solve the above problems, and as a result, combined a solid oil or a semi-solid oil with a water-insoluble film-forming polymer emulsion that is a component that forms a film having excellent transfer resistance. By making it into an emulsion, it was possible to reduce the shrinkage of the decorative film while giving the film thickness and hot water resistance. However, since solid oil or semi-solid oil has crystallinity, it is easy to feel the fusion at the time of making a decorative film as a contraction feeling, and the contraction feeling is insufficient. Therefore, by combining phospholipids, the crystallinity of the solid oil or semi-solid oil can be relaxed, and the film can be made uniform, and the shrinkage feeling can be eased while being excellent in transfer resistance and hot water resistance. The present invention has been completed.

  Furthermore, by combining polyethylene glycol, the film could be made flexible and the shrinkage feeling could be further reduced. In combination with an aqueous thickener, the cosmetic film is thickened to improve the strength of the cosmetic film and the conspicuousness of the vertical lines of the lips, and when it is a specific aqueous thickener, it is oil resistant. And transfer resistance could be further improved.

That is, the present invention includes the following components (A) to ( D );
(A) Water-insoluble film-forming polymer emulsion having acrylic acid and vinyl acetate as structural units (B) Solid oil or semi-solid oil (C) Phospholipid
(D) An oil-in-water emulsified lip cosmetic containing polyethylene glycol is provided.

  The glass transition temperature (Tg) of the component (A) is -20 to 15 ° C, and the oil-in-water emulsified lip cosmetic is provided.

  The melting point of the component (B) is 30 to 70 ° C. The oil-in-water emulsified lip cosmetic is provided.

Furthermore, the present invention provides the oil-in-water emulsified lip cosmetic comprising an aqueous thickener as the component (E) .

The oil-in-water emulsified lip cosmetic further comprises a water-insoluble film-forming polymer emulsion having acrylic acid as a structural unit (excluding the component (A)). .

  The oil-in-water emulsified lip cosmetic of the present invention has an excellent drying rate after application, easily exhibits an effect of transfer resistance, and does not cause color transfer to a cup or a plastic bottle. In addition, since the film does not move or peel off during recoating, it is easy to apply lipstick, gloss or the like. Since a water-insoluble film-forming polymer emulsion is used as the film-forming component, the film-forming component is present in the water layer that is a continuous layer in the oil-in-water emulsified lip cosmetic, compared to the case where it is present in the oil layer. Can also form a uniform film. In addition, other water-soluble film forming components have excellent resistance (hot water resistance) to hot water that easily dissolves and causes film peeling. Further, by using solid oil or semi-solid oil and phospholipid as a component for imparting flexibility, flexibility can be imparted while maintaining transfer resistance and hot water resistance, and there is no contraction and lips Improves the conspicuousness of downspout.

  The water-insoluble film-forming polymer emulsion of component (A) in the present invention is obtained by dispersing a water-insoluble polymer compound in an aqueous solvent, and forms a film by volatilization of the aqueous solvent. As long as it is contained in the cosmetic, it can be used without any particular limitation. For example, alkyl acrylate copolymer emulsion, alkyl acrylate / styrene copolymer emulsion, alkyl acrylate / vinyl acetate emulsion, vinyl pyrrolidone / styrene copolymer emulsion, polyvinyl acetate emulsion, polyurethane emulsion, polyurethane alkyl acrylate Examples thereof include polymer emulsions such as core emulsions. These water-insoluble film-forming polymer emulsions can be used alone or in combination of two or more as required.

  Among these, those having a glass transition temperature (Tg) in the range of -20 to 15 ° C are preferable from the viewpoint of transfer resistance and flexibility. In the present invention, the glass transition temperature is calculated from the formula of Fox (FOX) based on the Tg of the homopolymer (homopolymer) of each monomer constituting the block and the mass fraction (copolymerization ratio) of the monomer. This is the required value. As the Tg of the homopolymer used, a value described in the “Adhesion Technology Handbook” of Nikkan Kogyo Shimbun, which is a publicly known document, was adopted. As a water-insoluble film-forming polymer emulsion having a Tg in the range of −20 to 15 ° C., a commercially available “vinizole 2140L” ((Acrylates / VA) copolymer) (Tg = −9 ° C.) (manufactured by Daido Kasei Kogyo Co., Ltd.) ) And “Yodosol GH800F” (Acrylate Copolymer Ammonium) (Tg = −15 ° C.) (manufactured by Akzo Nobel). Furthermore, it is preferable to use at least one polymer emulsion having vinyl acetate as a structural unit in terms of improving adhesion to the lips.

  Although content of the component (A) in this invention is not specifically limited, If it is the range of 0.4-13 mass% (henceforth "mass%" is only shown as "%") as solid content, transfer resistance and It is preferable in terms of shrink feeling, and in the range of 2 to 10% is more preferable because it is excellent in transfer resistance and ease of application.

  The solid oil or semi-solid oil of the component (B) used in the present invention is a solid or semi-solid oil agent at 25 ° C., and is not particularly limited as long as it is contained in normal cosmetics. it can. Examples include hydrocarbon oils, ester oils, higher alcohol oils, ether oils, silicone oils, etc. that originate from animal oils, vegetable oils, synthetic oils, etc., and use one or more of these. Can do.

  As the solid oil, hydrocarbon solid oil, ester solid oil, higher alcohol solid oil, silicone solid oil and the like can be used. For example, paraffin wax, ceresin wax, microcrystalline wax, polyethylene wax, ethylene-propylene copolymer, montan wax, Fischer-Tropsch wax and other hydrocarbon solid oils, hydrogenated jojoba oil, beeswax, carnauba wax, candelilla wax, rice wax , Eicosene / vinyl pyrrolidone) copolymers, α-olefin / vinyl pyrrolidone copolymers, ester solid oils such as glyceryl tribehenate, higher alcohol solid oils such as stearyl alcohol, cetyl alcohol, lauryl alcohol, behenyl alcohol, (acrylates / acrylic) Acid solids such as behenyl / dimethicone methacrylate) copolymers, (acrylates / stearyl acrylate / dimethicone methacrylate), etc. Oil and the like. Further, as the semi-solid oil, hydrocarbon-based semi-solid oil, ester-based semi-solid oil, ether-based semi-solid oil, silicone-based semi-solid oil and the like can be used. For example, hydrocarbon semi-solid oils such as petrolatum; hexa (hydroxystearic acid / stearic acid / rosinic acid) dipentaerythrityl, (hydroxystearic acid / stearic acid / rosinic acid) dipentaerythrityl, hexahydroxystearic acid dipentaerythrityl, tetra (hydroxystearic acid) / Isostearic acid) dipentaerythrityl, dipentaerythritol fatty acid ester such as (hydroxystearic acid / isostearic acid) dipentaerythrityl, stearic acid hydrogenated castor oil, isostearic acid hydrogenated castor oil, hydrogenated castor oil fatty acid ester such as hydroxystearic acid hydrogenated castor oil, Cholesterol fatty acid esters such as cholesteryl hydroxystearate, phytosteryl oleate, macadamian nut oil fatty acid phytos Phytosterol fatty acid esters such as ril, hydrogenated vegetable oils such as hydrogenated coconut oil and hydrogenated palm oil, dimer linoleic acid (phytosteryl / isosteryl / cetyl / stearyl / behenyl), sucrose pentahydroxystearate, di (octyldodecyl) lauroyl glutamate Ester-based semi-solid oils such as / phytosteryl / behenyl); ether-based semi-solid oils such as hydroxyalkyl dimer silinoyl ether; dimethicone cross-polymers, silicone-based semi-solid oils such as (dimethicone / vinyl dimethicone) cross-polymers, etc. It is done.

  Among these, those having a melting point of 70 ° C. or lower are preferable from the viewpoint of flexibility, and those having a melting point in the range of 30 to 70 ° C. are excellent from the viewpoint of flexibility and hot water resistance. Furthermore, when an ester oil having a melting point in the range of 30 to 70 ° C. is used, the uniformity of the decorative film is further improved, so that the transfer resistance is excellent. Furthermore, candelilla wax, beeswax, rice wax, carnauba wax, dipentaerythrityl hexahydroxystearate, cadmium nut oil fatty acid phytosteryl, eicosene / vinylpyrrolidone) copolymer, sucrose pentahydroxystearate, dilauryl glutamate di (octyldodecyl / phytosteryl / behenyl) Solid oils or semi-solid oils containing ester oils such as) have good compatibility with the polymer emulsion of component (A), can significantly improve the uniformity of the cosmetic film, and can exhibit transfer resistance and hot water resistance. Therefore, it is preferably used.

  The content of the component (B) in the present invention is not particularly limited, but is preferably in the range of 0.5 to 14% in terms of making the decorative film into a film thickness and making the vertical lines less noticeable, and is 2 to 12%. The range is more preferable because it is excellent in hot water resistance.

  The phospholipid of component (C) in the present invention means a structure having a structure in which a fatty acid and a phosphoric acid are combined with glycerin or sphingosine as a central skeleton, and an alcohol is ester-bonded to the phosphoric acid, unless otherwise specified. Examples of the fatty acid constituting the phospholipid include saturated and unsaturated carboxylic acids having 7 to 22 carbon atoms. The alcohol constituting the phospholipid often contains nitrogen, and examples thereof include choline, ethanolamine, inositol, serine and the like.

  In the present invention, soy lecithin extracted from natural soybean and egg yolk, egg yolk lecithin, hydrogenated lecithin hydrogenated from these, hydrogenated soybean lecithin, hydrogenated egg yolk lecithin, synthetic phospholipid, etc., generally known as phospholipids Can be used. More specifically, phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, phosphatidic acid, phosphatidylinositol, and the like can be preferably used. A lysophospholipid in which the ester bond at the 2-position is hydrolyzed with phospholipase or the like may also be used. These phospholipids can be used alone or in combination of two or more as required.

  The content of component (C) in the present invention is not particularly limited, but if it is in the range of 0.05 to 5%, the crystallinity of the wax can be inhibited, the flexibility of the decorative film can be imparted, and the shrinkage feeling In the range of 0.1 to 3%, the hot water resistance is more preferable.

  In the present invention, polyethylene glycol can be further contained as the component (D), and the component (D) is preferable because the decorative film is softened and shrinkage feeling is reduced while maintaining transfer resistance. The component (D) polyethylene glycol in the present invention can be used without particular limitation as long as it is contained in a normal cosmetic. Specifically, PEG-4, PEG-6, PEG-8, PEG-12, PEG-15, PEG-20, PEG-30, PEG-32, PEG-40, PEG listed in International Nomenclature Cosmetic Ingredient -80, PEG-120, PEG-400 etc. are mentioned, These can be used 1 type or 2 types or more as needed. Moreover, an average molecular weight is measured by the average molecular weight test of polyethylene glycol 4000 of the quasi-drug raw material standard 2006. Among these, those having an average molecular weight in the range of 400 to 20000 are preferred from the viewpoint of transfer resistance and hot water resistance, and those in the range of 1000 to 10,000 are more preferred because they are excellent in that they can be used smoothly without stickiness.

  The content of the component (D) in the present invention is not particularly limited, but is preferably in the range of 0.1 to 15% in terms of transfer resistance and hot water resistance, and is in the range of 0.5 to 10%. It is more preferable because it can be applied smoothly without stickiness.

  In this invention, an aqueous | water-based thickener can be further contained as a component (E) and since the viscosity can be provided and the film | membrane thickness at the time of application | coating can be improved by containing a component (E), it is preferable. The aqueous thickener of component (E) used in the present invention can be used without particular limitation as long as it is contained in ordinary cosmetics, and one or more kinds may be used as necessary. it can. Examples of the component (E) include carboxyvinyl polymer, alkyl-modified carboxyvinyl polymer, methylcellulose, hydroxymethylcellulose, xanthan gum, locust bean gum, guar gum, carrageenan, gellan gum, high methoxy pectin, low methoxy pectin, sclerotium gum, agar , Water-swellable clay minerals, aqueous alkali thickening polymer emulsions, and the like.

  The aqueous alkali-thickened polymer emulsion mentioned here is different from the component (A) and is a system in which polymer fine particles are stably dispersed in an aqueous solvent, and a monomer emulsified with a surfactant is polymerized. It contains a milky sap that exists in nature and a milky sap that exists in nature. Under neutral conditions, it is a milky white emulsion, thickened by neutralization with an alkaline agent, and imparts viscosity to cosmetics. Is. The aqueous dispersion prepared by adding 0.3% by mass (hereinafter simply referred to as “%”) of the aqueous alkali-thickened polymer emulsion to a solid content is neutralized with triethanolamine as an alkaline agent to adjust the pH to 7 The viscosity increase when it is .5 is 100 times or more compared with the viscosity before neutralization with an alkali agent. In the present invention, the viscosity is a value measured with a B-type viscometer, for example, a single cylindrical rotational viscometer vistron VS-A1 (manufactured by Shibaura System Co., Ltd.). Specific examples include a polymer emulsion containing a copolymer of acrylic acid and an alkyl acrylate ester as a polymer component, a polymer emulsion containing a copolymer of acrylic acid and an alkyl methacrylate ester as a polymer component, acrylic acid and an alkyl acrylate ester. And a polymer emulsion containing a copolymer of methacrylic acid alkyl ester as a polymer, a polymer emulsion containing a copolymer of acrylic acid, methacrylic acid and alkyl acrylate as a polymer, acrylic acid, alkyl acrylate and polyethylene acrylate A polymer emulsion comprising a copolymer of glycol ester, a copolymer of acrylic acid, alkyl methacrylate and acrylic acid (polyoxyethylene monoalkyl ether) ester Polymer emulsion containing polymer, polymer emulsion containing acrylic acid, methacrylic acid alkyl ester and methacrylic acid (polyoxyethylene monoalkyl ether) ester copolymer, acrylic acid alkyl ester and methacrylic acid (polyoxyethylene mono) Examples include polymer emulsions having a copolymer of alkyl ether) ester as a polymer, and polymer emulsions having a copolymer of acrylic acid, alkyl acrylate ester and itaconic acid (polyoxyethylene monoalkyl ether) ester as a polymer. . Of these, the alkyl group of alkyl acrylate or alkyl methacrylate may be one type having 1 to 12 carbon atoms or two or more types. Above all, if the monomer constituting the polymer component is a polymer having acrylic acid, not only does it thicken the oil-in-water emulsified lip cosmetic and make it suitable for application, but also contributes to improving the strength of the cosmetic film, It is preferable in that the hot water resistance can be improved. Examples of commercially available products include “Primal ASE-60” (solid content 28%) (manufactured by Polymer Latex), “SALCARE SC81” (solid content 30%) (manufactured by Ciba Specialty Chemicals), “ACULYN22” (solid content) 30%), “ACULYN28” (solid content 20%), “ACULYN33A” (solid content 28%) (all manufactured by Rohm & Haas) and the like.

  The content of the component (E) used in the present invention is not particularly limited, but when it is in the range of 0.1 to 15%, it spreads smoothly and is preferable in terms of the thickness and usability of the film during coating. When the content is in the range of 5 to 10%, the viscosity can be improved while maintaining the lightness of spreading.

  The oil-in-water emulsified lip cosmetic of the present invention includes components used in preparations for cosmetics, external preparations for skin, foods, liquid oil, powder components, powder dispersion and feel adjustment in addition to the components described above. Surfactant other than as component (C), moisture retention, component (D) as film formation, aqueous component other than component (E), ultraviolet absorber, humectant, anti-fading agent, antioxidant, antifoaming agent Cosmetic ingredients, preservatives, fragrances, and the like can be appropriately contained within a range not impairing the effects of the present invention.

  Liquid oil is an oil agent that is liquid at 25 ° C., and can be used without any particular limitation. Examples include hydrocarbon oils, ester oils, higher alcohol oils, ether oils, silicone oils, fluorine oils, lanolin derivatives, etc., originating from animal oils, vegetable oils, synthetic oils, etc. Two or more types can be used. Specifically, hydrocarbons such as liquid paraffin, heavy liquid isoparaffin, α-olefin oligomer, squalane, polyisobutylene, polybutene, oils and fats such as olive oil, castor oil, macadamian nut oil, jojoba oil, diisobutyl adipate 2-hexyldecyl adipate, di-2-heptylundecyl adipate, alkyl glycol monoisostearate, isocetyl isostearate, trimethylolpropane triisostearate, ethylene glycol di-2-ethylhexanoate, 2-ethylhexanoic acid Cetyl, di-2-ethylhexanoic acid neopentyl glycol, tri-2-ethylhexanoic acid trimethylolpropane, tetra-2-ethylhexanoic acid pentaerythritol, cetyl octanoate, oleyl oleate, olei Octyldodecyl acid, decyl oleate, neopentyl glycol dicaprate, triethyl citrate, 2-ethylhexyl succinate, isocetyl stearate, butyl stearate, diisopropyl sebacate, di-2-ethylhexyl sebacate, cetyl lactate, myristyl lactate Isopropyl palmitate, 2-ethylhexyl palmitate, 2-hexyldecyl palmitate, 2-heptylundecyl palmitate, dipentaerythritol fatty acid ester, isopropyl myristate, isopropyl palmitate, 2-octyldodecyl myristate, myristic acid 2 -Hexyldecyl, myristyl myristate, hexyldecyl dimethyloctanoate, ethyl laurate, hexyl laurate, N-lauroyl-L-glutamic acid 2-octyldodecyl ester, diisostearyl malate, glyceryl triisooctanoate, glyceryl triisostearate, diglyceryl diisostearate, diglyceryl triisostearate, diglyceryl tetraisostearate, decaglyceryl decaisostearate, triisopalmitic acid Esters such as glyceryl, glyceryl trimyristate, and diglyceryl isostearate, amino acid oils such as di-phytostearyl and 2-octyldodecyl N-lauroyl-L-glutamate, and fatty acids such as isostearic acid and oleic acid Higher alcohols such as oleyl alcohol and isostearyl alcohol, dimethylpolysiloxane, methylphenylpolysiloxane, decamethylcyclopentasiloxane, Kuta tetramethyl cyclotetrasiloxane, silicone oils such as alkoxy-modified organopolysiloxane, fluorine-modified silicones, fluorine-based oils of perfluoro polyether, lanolin, lanolin acetate, lanolin derivatives such as lanolin fatty acid isopropyl.

The powder component is not particularly limited by the shape of a plate, spindle, needle, etc., particle size, particle structure such as porous, non-porous, etc., inorganic powders, glitter powders, organic Examples thereof include powders, pigment powders, and composite powders. Specifically, carbon black, conch, ultramarine, bengara, yellow iron oxide, black iron oxide, titanium oxide, zinc oxide, aluminum oxide, cerium oxide, magnesium oxide, zirconium oxide, magnesium carbonate, calcium carbonate, chromium oxide, water Inorganic powders such as chromium oxide, carbon black, aluminum silicate, magnesium silicate, magnesium aluminum silicate, mica, synthetic mica, synthetic sericite, sericite, talc, kaolin, silicon carbide, barium sulfate, boron nitride, Bismuth oxychloride, titanium mica, iron oxide coated mica, iron oxide coated mica titanium, silicic anhydride coated mica titanium, organic pigment treated mica titanium, titanium oxide coated glass powder, titanium oxide / iron oxide coated glass powder, titanium oxide / anhydrous Silica coated glass powder, aluminum powder, etc. Glitter powders, organic powders such as magnesium stearate, zinc stearate, N-acyl lysine, nylon, pigment powders such as organic tar pigments, lake pigments of organic pigments, fine titanium oxide coated mica titanium, Fine powder zinc oxide coated mica titanium, barium sulfate coated mica titanium, titanium oxide-containing silicon dioxide, zinc oxide-containing silicon dioxide, etc., polyethylene terephthalate / aluminum / epoxy laminated powder, polyethylene terephthalate / polyolefin laminated film powder, polyethylene terephthalate / Examples thereof include polymethyl methacrylate laminated film powders, and one or more of them can be used.
In addition, these powders may be used alone or in combination of two or more, and are known using fluorine compounds, silicone oils, metal soaps, waxes, surfactants, fats and oils, etc. It may be subjected to a surface treatment by a method.

  Examples of surfactants other than the component (C) for powder dispersion and feel adjustment include nonionic surfactants, anionic surfactants, cationic surfactants, and amphoteric surfactants. For example, glycerin fatty acid ester and its alkylene glycol adduct, polyglycerin fatty acid ester and its alkylene glycol adduct, sorbitan fatty acid ester and its alkylene glycol adduct, sucrose fatty acid ester, polyoxyethylene hydrogenated castor oil, polyoxyalkylene alkyl co-modified Examples thereof include organopolysiloxane, polyether-modified organopolysiloxane, sodium stearoylmethyl taurate, stearic acid, stearyltrimethylammonium chloride, and coconut oil fatty acid amidopropyl betaine.

  As the aqueous component other than component (D) and component (E) for film formation and feel adjustment, any component that is soluble in water may be used. For example, lower alcohols such as ethyl alcohol and butyl alcohol, propylene glycol , Glycols such as 1,3-butylene glycol and dipropylene glycol, glycerols such as glycerin, diglycerin and polyglycerin, water-soluble film forming agents such as polyvinyl alcohol, polyvinyl pyrrolidone and (vinyl pyrrolidone-vinyl acetate) copolymer, Examples include plant extracts such as aloe vera, witch hazel, hamamelis, cucumber, lemon, lavender, and rose. Other moisturizing agents such as protein, mucopolysaccharide, collagen, trehalose, elastin, keratin and the like can also be contained.

  Examples of the UV absorber include benzophenone, paraaminobenzoic acid, cinnamic acid, salicylic acid, 4-tert-butyl-4′-methoxydibenzoylmethane, oxybenzone, and the like, and examples of the humectant include protein, mucopolysaccharide. Collagen, elastin, keratin, etc., antioxidants such as α-tocopherol, ascorbic acid, etc., cosmetic ingredients such as vitamins, anti-inflammatory agents, herbal medicines, etc., preservatives such as paraoxybenzoic acid esters, phenoxyethanol, etc. 1,2-pentanediol and the like.

  Examples of the oil-in-water emulsified lip cosmetic of the present invention are not particularly limited, and may be any form such as lipstick, lipstick base, gloss, lipstick overcoat, and the like. Further, the property may be any of liquid, semi-solid and solid.

  The method for producing the oil-in-water emulsified lip cosmetic of the present invention is not particularly limited, and is prepared by a conventional method. For example, the method of preparing by adding the said component (A)-(C), the said component (D), a component (E), and an arbitrary component as needed, and emulsifying this is mentioned.

  Hereinafter, the present invention will be described in more detail with reference to examples. Note that these do not limit the present invention.

Reference Examples 1 to 13, Examples 14 and 15 , and Comparative Examples 1 to 6: Oil-in-water emulsified lip cosmetic (liquid)
Oil-in-water emulsified lip cosmetics having the compositions shown in Tables 1 to 3 below were prepared by the following production method: a. Hot water resistance (60 ° C.), b. Transfer resistance, c. A feeling of contraction, d. The thickness of the film at the time of application, e. The conspicuousness of the vertical lip of the lips was evaluated by the following evaluation method and evaluation / judgment criteria. The results are also shown in Tables 1-3.

Note 1: Nikkor Resinol S-10EZ (Nikko Chemicals)
Note 2: Lecithin CLO (manufactured by J-Oil Mills)
Note 3: PARACERA256 (manufactured by PARAMELT)
Note 4: Refined carnauba wax No. 1 (manufactured by Nikko Rica)
Note 5: BEES WAX S (Crowda)
Note 6: ACULYN 33A (alkali thickening type) (Rohm)
Note 7: FLAMENCO SPARKLE RED 420J (manufactured by Engelhard)
Note 8: Binizole 2140L (Daido Kasei Kogyo Co., Ltd.)
Note 9: Binizole 1086WP (manufactured by Daido Kasei Kogyo Co., Ltd.)
Note 10: Iodosol GH800 F (manufactured by Akzo Nobel)
Note 11: Acorn KS (manufactured by Osaka Organic Chemical Industry Co., Ltd.)
Note 12: PEG-1500 (manufactured by Toho Chemical Industry Co., Ltd.)

(Production method)
A. Components (1) to (7) are heated and dissolved at 100 ° C.
B. Components (8) and (9) are heated and mixed at 90 ° C.
C. Add B to A and emulsify.
D. Mix (10) to (24). Add D to C and mix.
F. E was filled in a container to obtain an oil-in-water emulsified lip cosmetic (liquid).

(Evaluation method)
For evaluation item a, each sample was prepared on artificial leather (Bioskin plate manufactured by Beaulux Co., Ltd., thickness 5 mm) with a doctor blade to prepare a uniform coating film having a thickness of 100 μm. The state of the coating film after drying for 5 hours and immersing in 60 ° C. hot water for 5 minutes was evaluated. Evaluation criteria were determined as follows.
<Evaluation criteria>
(Evaluation): (Coating state)
A: No change B: The coating film becomes slightly soft.
Δ: Peeling is observed in the coating film or the coating film becomes thin by elution. ×: Almost no coating film remains due to peeling or elution.

About the following item, the use test by the cosmetics evaluation special panel 20 persons was performed about each sample. Each sample was applied to the lips, and each panel person evaluated the condition of the cosmetic film after 6 hours of normal life for the evaluation item b after application for 6 levels according to the following absolute evaluation criteria. The average value was calculated from the sum of the scores of all the members and judged according to the following criteria.
b. Transfer resistance <Evaluation criteria>
(Score): (Evaluation)
5: No color transfer at all and no change in the decorative film.
4: The color does not transfer at all, but the gloss of the decorative film slightly decreases.
3: Although the color does not transfer at all, the gloss of the decorative film is lowered.
2: Slight color transfer is observed, and there is only a slight defect of the decorative film.
1: Color transfer is observed, and cosmetic film defects are partially observed.
0: Color transfer is severe and cosmetic film defects are severe.

<Criteria>
(Judgment): (Average score)
◎: More than 4 points and 5 points or less: Very good ○: 3 points or more and 4 points or less: Good △: More than 1.5 points and less than 3 points: Slightly poor ×: 1.5 points or less: Bad

  About the following item, the use test by the cosmetics evaluation special panel 20 persons was performed about each sample. Each sample is applied to the lips, and each panel member evaluates the condition of the cosmetic film immediately after application with respect to the evaluation items c, d, and e in five levels according to the following absolute evaluation criteria, and gives a score. The average value was calculated from the sum and determined according to the following criteria.

c. Shrinkage <Evaluation criteria>
(Score): (Evaluation)
5: There is no feeling of contraction at all.
4: Feels little contraction 3: Feels contraction 2: Feels contraction and feels burdened.
1: A strong feeling of contraction is felt and it is very burdensome.

d. Film thickness during application <Evaluation criteria>
(Score): (Evaluation)
5: The film is very thick and excellent in uniform coating properties.
4: The film is sufficiently thick and easy to apply uniformly.
3: Slightly lacking in film thickness, but can be applied uniformly.
2: The film is slightly thin and does not become a uniform film.
1: The film is thin and clear coating can be achieved.

e. Difficulty in conspicuous lip of the lips <Evaluation criteria>
(Score): (Evaluation)
5: The vertical lines of the lips are not noticeable.
4: The vertical lip of the lips is hardly noticeable.
3: Vertical lip of lips is seen.
2: The vertical lip of the lips is conspicuous.
1: The vertical fin of the lips is very conspicuous.

<Criteria>
(Judgment): (Average score)
◎: Over 4 points and 5 points or less: Very good ○: Over 3 points and 4 points or less: Good △: Over 2 points and 3 points or less: Slightly poor ×: 2 points or less: Bad

As is apparent from the results of Tables 1 to 3, the oil-in-water emulsified lip cosmetics (liquid) of Reference Examples 1 to 13 and Examples 14 and 15 of the present invention are excellent in hot water resistance and transfer resistance, Since the decorative film is flexible, the lips do not feel a contraction, and a smooth and thick film is formed.

  On the other hand, Comparative Example 1 which does not contain the water-insoluble film-forming polymer emulsion of component (A) is remarkably inferior in hot water resistance and transfer resistance, and has low film flexibility. , I was not satisfied. Comparative Example 2 containing an alcohol-soluble film-forming agent (vinylpyrrolidone / vinyl acetate) copolymer in place of the water-insoluble film-forming polymer emulsion of component (A) not only has inferior hot-water resistance and transfer resistance. Since it was a hard film, a satisfactory film could not be obtained in terms of shrinkage. Comparative Example 3 which does not contain the solid oil or semi-solid oil of component (B) is not only inferior in hot water resistance, but also cannot suppress the contraction of the film and feels a contraction, and the cosmetic film remaining after application The thickness was also insufficient. Comparative Example 4 containing glyceryl tri-2-ethylhexanoate, which is a liquid oil instead of the solid oil or semi-solid oil of component (B), is inferior in hot water resistance and transfer resistance, although the shrinkage feeling is improved. Further, the thickness of the decorative film remaining after the application was insufficient, and the vertical lines were easily noticeable. Comparative Example 5, which does not contain the component (C) phospholipid, does not give flexibility to the film formed from the component (A) and the component (B), and is sufficient in a region where the contraction sensation such as lips is easily felt. Comparative Example 6 in which the amount of stearic acid that also contributes as an active agent was increased instead of the phospholipid of the component (C), which could not give satisfactory flexibility and could not be satisfied in the contraction feeling, The property could not be improved remarkably, and it was not possible to satisfy the contraction.

Reference Example 16: Oil-in-water emulsified lipstick (gel)
An oil-in-water emulsified lipstick (gel) was prepared by the following composition and production method.
(Ingredient) (%)
1. Native gellan gum (Note 13) 0.5
2. Residual amount of water 3. L-Arginine 0.3
4). EDTA-2Na 0.05
5. Calcium chloride 0.03
6). Phenoxyethanol 0.3
7. 1,3-Butylene glycol 10
8). Glycerin 5
9. Polyoxyethylene (32 mol) alkyl ether sodium phosphate 0.3
10. Dimethylpolysiloxane 2% treated yellow iron oxide 1.5
11. Dimethylpolysiloxane 2% treated bengara 0.3
12 Dimethylpolysiloxane 2% treated titanium oxide 3
13. Glycerol monostearate 1.5
14 Cetanol 1.5
15. Soy lecithin (Note 2) 0.5
16. Dimerlinoleic acid (phytosteryl / isosteryl /
Cetyl / stearyl / behenyl) 2
17. Vaseline 1
18. Glyceryl trioctanoate 3
19. Polyvinyl acetate emulsion (Note 14) 5
Note 13: Kelcogel LT-100F (Dainippon Sumitomo Pharma Co., Ltd.)
Note 14: Vinibrand GV-5651F (solid content 36.4%) (Daido Chemical Industries, Ltd.)

(Production method)
A. Ingredient (1) is uniformly swollen with ingredient (2).
B. Ingredients (3) to (12) are uniformly dispersed.
C. Components (13) to (18) are heated and dissolved at 70 ° C.
D. A and B are mixed, and C is added thereto to emulsify.
E. Add component (19) to D and mix.
F. E was heated and dissolved, filled into a container, and then cooled to room temperature to obtain an oil-in-water emulsified lipstick (gel).

The oil-in-water emulsified lipstick (gel-like) of Reference Example 16 was excellent in all of the resistance to hot water, transfer resistance, film thickness at the time of application, shrinkage, and the conspicuousness of the vertical lip of the lips. .

Reference Example 17: Oil-in-water emulsified lipstick base (liquid)
An oil-in-water emulsified lipstick base (liquid) was prepared by the following composition and production method.
(Ingredient) (%)
1. Polyoxyethylene (20 mol) sorbitan monostearate 0.3
2. Cetostearyl alcohol 0.3
3. Behenyl alcohol 0.5
4). Lipophilic glyceryl monostearate 0.5
5. Triethanolamine 0.01
6). Squalane 3.5
7). Methylparaben 0.1
8). Decamethylcyclopentasiloxane 1
9. Cetyl 2-ethylhexanoate 2
10.1,3-butylene glycol 15
11. Hyaluronic acid 0.5
12 Purified water remaining amount 13. Water-added soybean phospholipid (Note 1) 0.2
14 Xanthan gum 0.12
15. Queen Seed Extract 0.12
16. (Acrylates / VA) Copolymer emulsion (Note 8) 12
17. Perfume 0.02

(Production method)
A. Components (1) to (9) are uniformly mixed and dispersed at 75 ° C.
B. Components (10) to (12) are uniformly mixed and dispersed at 75 ° C.
C. Add B to A, emulsify, and cool.
D. Add components (13) to (17) to C and mix and disperse uniformly.
E. The container was filled to obtain an oil-in-water emulsified lipstick base (liquid).

The oil-in-water emulsified lipstick base (liquid) obtained in Reference Example 17 is excellent in all of hot water resistance, transfer resistance, film thickness at the time of application, shrinkage, and inconspicuousness of the vertical lip of the lips. It was also easy to superimpose such as gloss and gloss.

Claims (5)

The following components (A) to ( D );
(A) Water-insoluble film-forming polymer emulsion having acrylic acid and vinyl acetate as structural units (B) Solid oil or semi-solid oil (C) Phospholipid
(D) An oil-in-water emulsified lip cosmetic containing polyethylene glycol .   The oil-in-water emulsified lip cosmetic according to claim 1, wherein the component (A) has a glass transition temperature (Tg) of -20 to 15 ° C.   The melting point of said component (B) is 30-70 degreeC, The oil-in-water emulsion type lip cosmetics of Claim 1 or 2 characterized by the above-mentioned. The oil-in-water emulsified lip cosmetic according to any one of claims 1 to 3 , further comprising an aqueous thickener as the component (E). Furthermore, the water-insoluble film-forming polymer emulsion which has acrylic acid in a structural unit (however, except the said component (A)) is contained, The water in any one of Claims 1-4 characterized by the above-mentioned. Oil emulsified lip cosmetic.