JP2010001234A - Oily cosmetic having effect of inhibiting percutaneous water transpiration - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an oily cosmetic suppressing the increase of the amount of water transpiration from the surface of the skin with time, and increasing humectant and protective power of the skin. <P>SOLUTION: The oily cosmetic is prepared by formulating an oily agent having self-adhesiveness of 35-70 gf, a silylated silica, and a water-holding polymer such as an oceanic collagen and a body composition-resembled polymer. The body composition-resembled polymer is preferably selected from a polymethacryloyloxyethyl phosphorylcholine, a copolymer of methacryloyloxyethyl phosphorylcholine with an alkyl (meth)acrylate, a polymethacryloyloxyethyl glycoside, a copolymer of methacryloyloxyethyl glycoside with an alkyl (meth)acrylate, a polymethacryloyl-L-lysine and a copolymer of methacryloyl-L-lysine with an alkyl (meth)acrylate. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to cosmetics, and more particularly to oily cosmetics.

  Moisturizing the skin is a useful means for increasing the barrier ability of the skin, protecting it from external physical and chemical irritation, and preventing various skin problems. For this reason, many cosmetic manufacturers are making various efforts to increase the moisture retention of the skin.

Particularly in recent years, in addition to skin care cosmetics, various cosmetics such as makeup cosmetics and lip cosmetics have been developed that combine materials for the purpose of improving or maintaining the moisture retention of the skin. It was. However, in such lips, a decrease in water retention ability is likely to lead to serious symptoms such as peeling of the epidermis, and has a great influence on appearance impression formation, and countermeasures are more important than the skin. It is said that there is.

Usually, for such moisturizing, measures such as increasing the amount of polyhydric alcohol and blending moisturizing polymer such as sodium hyaluronate and sodium chondoitin sulfate are taken. However, there are cases in which there is a problem in usability such as uncomfortable feeling in usability such as stickiness derived from polyhydric alcohol or moisturizing polymer (see, for example, Patent Document 1 and Patent Document 2). As a method for improving such a feeling of use, it is known to use a fine powder having a low frictional resistance such as silica. There was also concern about the promotion of rough skin by inducing omission from the skin and adsorbing oily components.

In addition, NMF and the like are included in the cosmetics for the purpose of moisturizing. In addition, poly N-methacryloyl is a bio-component-like polymer that increases the area of horny cells when the keratinocyte area is reduced due to damage or due to a congenital cause, and shows an improved barrier function by strengthening the stratum corneum. Lysine is known (Patent Document 3).

On the other hand, silylation treatment is performed on the surface of silica as a component that improves the usability of cosmetics by preventing the removal of cosmetics from the skin surface due to silica and imparts a moisturizing effect as a secondary effect. Silica is used. This is known to be useful as a component of a skin protective cosmetic because it has excellent affinity with the skin and water retention ability (Patent Document 4). However, on the other hand, in the silylated silica-containing oily cosmetics, it can be said that there is still room for improvement with respect to the removal of the cosmetics from the skin.

In addition to the above poly-N-methacryloyl lysine, there is marine collagen as a cosmetic composition blended for the purpose of moisturizing and improving wrinkles (Patent Document 5), but it is effectively used because it is water-soluble. The possible dosage forms were limited to lotions, emulsions, creams and essences.

However, in normal oily cosmetics, it is difficult to effectively contain collagen and water-soluble polymers, so it is speculated that combined use with silylated silica will significantly improve moisture retention. Was not.

JP 2004-107242 A JP 2004-99564 A JP 2007-302699 A Japanese Patent Laid-Open No. 2006-219412 JP 2006-193463 A

  The present invention has been made under such circumstances, and an object of the present invention is to provide an oily cosmetic that prevents transpiration of moisture from the skin over time and suppresses peeling of the epidermis.

In view of such a situation, the present inventors have sought for a composition that can be used in cosmetics, and as a result of intensive research efforts, 1) an oil agent having a tackiness of 35 gf to 70 gf, and 2) The present inventors have found that an oily cosmetic containing silylated silica has such properties and has completed the invention. That is, the present invention is as follows.
(1) An oily cosmetic comprising 1) an oil having an adhesiveness of 35 gf to 70 gf, and 2) a silylated silica.
(2) The oily cosmetic according to (1), which is a cosmetic for preventing moisture transpiration from the skin over time.
(3) The oily cosmetic according to (1) or (2), further comprising a water-retaining polymer.
(4) The oily cosmetic according to any one of (1) to (3), wherein the water-retaining polymer is collagen derived from fish.
(5) The oily cosmetic according to any one of (1) to (4), wherein the water-retaining polymer is a biocomponent-like polymer.
(6) Biological component-like polymer is polymethacryloyloxyethyl phosphorylcholine, copolymer of methacryloyloxyethyl phosphorylcholine and alkyl (meth) acrylate, polymethacryloyloxyethyl glucoside, copolymer of methacryloyloxyethyl glucoside and alkyl (meth) acrylate Any one of (1) to (5), characterized by being one or more selected from polymethacryloyl-L-lysine and a copolymer of methacryloyl-L-lysine and alkyl (meth) acrylate 1. An oily cosmetic according to item 1.
(7) The oily cosmetic according to any one of (1) to (6), wherein the oily cosmetic is for lips.

  According to the present invention, it is possible to provide an oily cosmetic that prevents transpiration of moisture from the skin with time and suppresses peeling of the epidermis.

<1> Oil Agent which is an Essential Component of the Oily Cosmetic of the Present Invention The oily cosmetic of the present invention is characterized by containing an oil agent having a tackiness of 35 gf to 70 gf as an essential component. Tackiness should be fixed by adjusting the sample to a fixed amount of thin film on the measurement unit support using a commercially available tack tester, for example, KES-G5 (manufactured by Kato Tech Co., Ltd.) Can be measured. Specifically, the oil agent is spread as a thin film so as to be 0.05 to 5 g / cm 2, and it is preferably measured with an adhesion tester, and more preferably 0.05 to 0.5 / cm 2. Furthermore, it is preferable to measure what made the thin film by apply | coating an oil agent to artificial leather on the conditions of SENCE10 and STROKE5. As the artificial leather, “Bio Skin” marketed by Beaulux Co., Ltd. is preferable. It is preferable to adjust the thin film to be prepared at the time of measurement to 0.5 mil, and the thin film having such a thickness can be adjusted using, for example, a “doctor blade”. Examples of oils having such a thin film having an adhesiveness measured by the above-mentioned equipment of 35 gf to 70 gf include sucrose fatty acid esters such as sucrose tetraisostearate (Cloda Japan Co., Ltd., Cloesta 4-IS), isobutylene. (Such as “Polybutene HV-300F” manufactured by Nippon Petrochemical Co., Ltd.) and the like, among which sucrose tetraisostearate is preferable. If the adhesiveness is 30 gf or less, the adhesion of the cosmetic to the skin is lowered, and the effect of suppressing the increase in transdermal moisture transpiration over time may not be sustained, which is not preferable. On the other hand, if it exceeds 70 gf, a sticky feeling or the like due to adhesiveness may occur, and the feeling of use of the oily cosmetic may be lowered. Moreover, content of the adhesive oil agent in the oily cosmetics of this invention is 1-40 mass%, Preferably it is 5-30 mass%, More preferably, it is 10-25 mass%. Furthermore, it is preferable that the tackiness in the final oily cosmetic is 35 to 50 gf.

<2> Silylated silica that is an essential component of the oily cosmetic of the present invention The oily cosmetic of the present invention contains silylated silica (hereinafter simply referred to as silylated silica) as an essential component. The silylated silica has a structure in which the surface thereof is modified with a silyl group having 1 to 2 or more alkyloxy groups having 1 to 5 carbon atoms. Examples of the alkyloxy group having 1 to 5 carbon atoms include a methyloxy group, an ethyloxy group, a propyloxy group, an isopropyloxy group, a butyl group, and the like, preferably a methyloxy group.
The silylating agent can have 1 to 3 alkyloxy groups, and the silica surface can be modified with a silyl group having 1 to 3 alkyloxy groups. Modification with a silyl group having a single alkyloxy group is preferred, and a modification with a trialkyloxy group-modified silyl group is particularly preferred. The alkyl group in such a silylating agent is preferably an alkyl group having 6 to 30 carbon atoms. Such silylated silica in the oily cosmetic composition of the present invention has an effect of stably and uniformly holding a water-soluble polymer component, an effect of suppressing moisture transpiration from the skin, and a stickiness in oily cosmetic composition. Has the effect of suppressing expression.

  The particle size of silylated silica may be 3 μm to 30 μm, and particularly preferably 13 μm to 20 μm. This is because if the amount is too small, the effect of silylation may not be sufficient, and if it is too large, the effect of suppressing moisture transpiration may be impaired.

  The content of the silylated silica in the cosmetic is preferably 0.01 to 10% by mass, more preferably 0.01 to 5% by mass in the oily cosmetic cosmetic of the present invention. If the blending amount is less than 0.01% by mass, it is difficult to sufficiently exert the effect of the oily cosmetic composition of the present invention. On the other hand, if it exceeds 10% by mass, the feeling of use such as stickiness may be deteriorated. Absent.

  Silylated silica can be prepared by subjecting the silica surface to surface treatment with a corresponding silylating agent having an alkyloxy group according to a conventional method, but since there are commercially available products, such commercially available products can also be used. Is possible. Examples of commercially available products include “DOW CORNING VM-2270 AEROGEL FINE PARTICLES” (manufactured by Toray Dow Corning), “Aerosil RY300” (manufactured by Nippon Aerosil Co., Ltd.), and the like.

<3> Water-retaining polymer preferably contained in the oily cosmetic composition of the present invention The oil-based cosmetic composition of the present invention should preferably be applied to the lip, contains the essential components, and preferably contains the water-retaining polymer composition. contains. The water-retaining polymer can be roughly divided into two types: 1) collagen or hydrolyzed collagen, and 2) biological component-like polymer. In the present invention, one or both of these can be classified. Is preferable, and a more preferable embodiment is a form containing both. Such a water-retaining polymer is usually difficult to be contained in oily cosmetics so that it is uniformly present unless it is in the presence of a polyhydric alcohol such as glycerin or sorbitan fatty acid ester. In the oily cosmetic composition of the present invention, by adopting the above-mentioned essential constitution, such components can be contained without the presence of sorbitan fatty acid ester or polyhydric alcohol. Thereby, sweating, blooming, etc., which are likely to occur due to the blending of the polyhydric alcohol, can also be suppressed.
As the collagen or the partial hydrolyzate thereof, a collagen whose source is a marine animal can be preferably exemplified, and specifically, collagen obtained from a marine organism tissue such as fish is preferable. Examples of the collagens include collagens obtained from marine animals such as fish (eg, flounder, salmon, sardines, tuna, golden shark, cod, shark, etc.), jellyfish, molluscs, crustaceans, and hydrolysates thereof. Can be mentioned. Of these collagens, those derived from fish are particularly preferred. The collagen extraction site is not particularly limited as long as it is a site containing collagen, such as a skin, a bladder, a bone, and a tendon, and any site can be used.

  Extraction / purification of the collagen can be performed by a conventional method. Specifically, for example, after pulverizing a tissue containing collagen such as skin, float bag, bone, washing with water, extraction with a dilute salt solution, acid or Extraction with an alkaline solution, extraction with an enzyme such as pepsin, trypsin or hyaluronidase, and purification by means of known purification means such as salting out or dialysis can be performed. Commercially available products such as “PANCOGEN MARIN” (registered trademark; manufactured by GATTEFOSSE), “Maringen SP-03 (PF)” (registered trademark; manufactured by Nitta Gelatin Co., Ltd.), and the like can also be used.

  As for content of the said collagen, 0.0001-50 mass% is preferable in the oily cosmetics of this invention, More preferably, it is 0.0001-10 mass%. If the blending amount is less than 0.0001% by mass, it is difficult to sufficiently exert the effect of collagen. On the other hand, if it exceeds 50% by mass, a sticky feeling or the like may occur, and the usability of oily cosmetics may decrease. It is not preferable.

The biological component-like polymer is a homopolymer or copolymer having a monomer having a phosphorylcholine group such as oxyethyl phosphorylcholine as a constituent monomer, or a homopolymer having a monomer having a sugar residue such as an oxyethylglucosyl group as a constituent monomer. Can be exemplified by a copolymer, a homopolymer or a copolymer having a monomer having an amino acid residue as a constituent monomer. Specific examples of the monomer having an oxyethyl phosphorylcholine group include methacryloyloxyethyl phosphorylcholine, specific examples of the monomer having an oxyethyl glucosyl group include methacryloyloxyethyl glucoside, and examples of amino acid residues include alanine and glutamine. , Lysine, arginine, and other amino acid and peptide residues. L-lysine residues are preferred, and specific monomers include methacryloyl-L-lysine. Examples of monomers copolymerizable with these monomers include alkyl (meth) acrylates, specifically, methyl (meth) acrylate, ethyl (meth) acrylate, n-butyl (meth) acrylate, ( Examples include iso-butyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, lauryl (meth) acrylate, myristyl (meth) acrylate, stearyl (meth) acrylate, and the like. Among these monomers, n-butyl methacrylate is particularly preferable as a monomer to be copolymerized with methacryloyloxyethyl phosphorylcholine. The monomer composition ratio in the copolymer of methacryloyloxyethyl phosphorylcholine and alkyl (meth) acrylate is preferably 95: 5 to 40:60. Accordingly, if the composition ratio of the alkyl (meth) acrylate is decreased, the hydrophilicity of the copolymer is increased, and it may be difficult to add to the oily cosmetic, which is not preferable. On the other hand, when the amount is increased, the hydrophilicity is decreased, the familiarity with water is decreased, and the effect of suppressing the increase in transdermal moisture transpiration over time of the oily cosmetic may be decreased, which is not preferable.
The bio-component-like polymer can be obtained by polymerizing the above-mentioned monomers by a conventional method, but there are many commercially available products, and such commercially available products can be obtained and used. A commercially available product of methacryloyloxyethyl phosphorylcholine homopolymer is “Lipidure-HM” (registered trademark; manufactured by NOF Corporation), and the molar ratio of methacryloyloxyethyl phosphorylcholine to n-butyl methacrylate is approximately 80:20. Yes, as a 5% aqueous solution of a copolymer having an average molecular weight of 100,000 to 1,000,000, “Lipidure-PMB” (registered trademark; manufactured by NOF Corporation) can be exemplified. As an aqueous solution of a homopolymer of methacryloyloxyethyl glucoside having an average molecular weight of 10,000 to 1,000,000, “P-GEMA-S” (manufactured by Nippon Seika Co., Ltd.) is used as a homopolymer of methacryloyl-L-lysine. Can be suitably exemplified by polymethacryloyl-L-lysine (produced by Gifu Shellac Factory) having an average molecular weight of 1,000 to 200,000. The content of these biocomponent-like polymers in the oily cosmetic is preferably 0.0001% by weight to 5% by weight, more preferably 0.001% by weight to 1% by weight, and 0.001% by weight to 0%. .3% by weight is particularly preferred.

<5> Oily cosmetics of the present invention The oily cosmetics of the present invention can contain optional components that are usually used in cosmetics in addition to the above components as long as the effects of the invention are not impaired. Examples of such optional ingredients include macadamia nut oil, avocado oil, corn oil, olive oil, rapeseed oil, sesame oil, castor oil, safflower oil, cottonseed oil, jojoba oil, coconut oil, palm oil, liquid lanolin, and hardened coconut oil. Oils such as hardened oil, mole, castor oil, beeswax, candelilla wax, carnauba wax, ibotarou, lanolin, reduced lanolin, hard lanolin, jojoba wax, waxes, liquid paraffin, squalane, pristane, ozokerite, paraffin, ceresin, petrolatum , Hydrocarbons such as microcrystalline wax, higher fatty acids such as oleic acid, isostearic acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, undecylenic acid, cetyl alcohol, stearyl alcohol, isostear Higher alcohols such as alcohol, behenyl alcohol, octyldodecanol, myristyl alcohol, cetostearyl alcohol, cetyl isooctanoate, isopropyl myristate, hexyldecyl isostearate, diisopropyl adipate, di-2-ethylhexyl sebacate, cetyl lactate, apple Diisostearyl acid, ethylene glycol di-2-ethylhexanoate, neopentyl glycol dicaprate, glycerin di-2-heptylundecanoate, glycerin tri-2-ethylhexanoate, trimethylolpropane tri-2-ethylhexanoate, Synthetic ester oils such as trimethylolpropane triisostearate and pentane erythritol tetra-2-ethylhexanoate, dimethylpolysiloxane, Chain polysiloxane such as siloxane, diphenylpolysiloxane, cyclic polysiloxane such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexanesiloxane, amino-modified polysiloxane, polyether-modified polysiloxane, alkyl-modified polysiloxane, Oil agents such as silicone oil such as modified polysiloxane such as fluorine-modified polysiloxane, anionic surfactants such as fatty acid soap (sodium laurate, sodium palmitate, etc.), potassium lauryl sulfate, triethanolamine ether of alkyl sulfate, chloride Cationic surfactants such as stearyltrimethylammonium, benzalkonium chloride, laurylamine oxide, imidazoline-based amphoteric surfactants (2-cocoyl-2-imi Dazolinium hydroxide-1-carboxyethyloxy disodium salt, etc.), betaine surfactants (alkyl betaines, amide betaines, sulfobetaines, etc.), amphoteric surfactants such as acylmethyl taurine, sorbitan fatty acid esters ( Sorbitan monostearate, sorbitan sesquioleate, etc.), glycerin fatty acids (such as glyceryl monostearate), propylene glycol fatty acid esters (such as propylene glycol monostearate), hardened castor oil derivatives, glycerin alkyl ether, POE sorbitan fatty acid ester (POE sorbitan monooleate, polyoxyethylene sorbitan monostearate, etc.), POE sorbite fatty acid esters (POE-sorbitol monolaurate, etc.), POE glycerin fat Esters (POE-glycerol monoisostearate, etc.), POE fatty acid esters (polyethylene glycol monooleate, POE distearate, etc.), POE alkyl ethers (POE2-octyldodecyl ether, etc.), POE alkylphenyl ethers (POE nonylphenyl) Ethers, etc.), Pluronic types, POE / POP alkyl ethers (POE / POP2-decyltetradecyl ether, etc.), Tetronics, POE castor oil / hardened castor oil derivatives (POE castor oil, POE hardened castor oil, etc.), Nonionic surfactants such as sucrose fatty acid esters and alkyl glucosides, polyethylene glycol, glycerin, 1,3-butylene glycol, erythritol, sorbitol, xylitol, maltitol, propylene Glycols, dipropylene glycol, diglycerin, isoprene glycol, 1,2-pentanediol, 2,4-hexylene glycol, 1,2-hexanediol, 1,2-octanediol and other polyhydric alcohols, pyrrolidonecarboxylic Moisturizing ingredients such as sodium acid, lactic acid, sodium lactate, guar gum, quince seed, carrageenan, galactan, gum arabic, pectin, mannan, starch, xanthan gum, curdlan, methylcellulose, hydroxyethylcellulose, carboxymethylcellulose, methylhydroxypropylcellulose, chondroitin Sulfuric acid, dermatan sulfate, glycogen, heparan sulfate, hyaluronic acid, sodium hyaluronate, tragacanth gum, keratan sulfate, chondroitin, mucoitin sulfate Hydroxyethyl guar gum, carboxymethyl guar gum, dextran, keratosulfuric acid, locust bean gum, succinoglucan, caronic acid, chitin, chitosan, carboxymethyl chitin, agar, polyvinyl alcohol, polyvinyl pyrrolidone, carboxyvinyl polymer, sodium polyacrylate, Thickeners such as polyethylene glycol and bentonite, surface may be treated, powder such as mica, talc, kaolin, synthetic mica, calcium carbonate, magnesium carbonate, silicic anhydride (silica), aluminum oxide, barium sulfate The surface may be treated, bengara, yellow iron oxide, black iron oxide, cobalt oxide, ultramarine, bitumen, titanium oxide, zinc oxide inorganic pigments, surface may be treated, mica titanium, Fish phosphorus foil, bisoxychloride Pearl agents such as red, red 202, red 228, red 226, yellow 4, blue 404, yellow 5, red 505, red 230, red 223, which may be raked, Organic dyes such as orange 201, red 213, yellow 204, yellow 203, blue 1, green 201, purple 201, red 204, polyethylene powder, polymethyl methacrylate, nylon powder, organopoly Organic powders such as siloxane elastomers, paraaminobenzoic acid UV absorbers, anthranilic acid UV absorbers, salicylic acid UV absorbers, cinnamic acid UV absorbers, benzophenone UV absorbers, sugar UV absorbers, 2 -(2'-hydroxy-5'-t-octylphenyl) benzotriazole, 4-methoxy-4'-t-butyldibenzoylmethane, etc. External line absorbers, lower alcohols such as ethanol and isopropanol, vitamin A or derivatives thereof, vitamin B6 hydrochloride, vitamin B6 tripalmitate, vitamin B6 dioctanoate, vitamin B2 or derivatives thereof, vitamin B12, vitamin B15 or derivatives thereof, etc. Vitamin E such as vitamin B, α-tocopherol, β-tocopherol, γ-tocopherol, vitamin E acetate and the like, vitamin D such as vitamin E, vitamin H, pantothenic acid, panthetin, and the like can be preferably exemplified.

Among the optional components, preferred examples include dimer acid diesters. Dimer acid is an aliphatic dibasic acid having 36 carbon atoms (having a double bond) obtained by dimerizing an unsaturated fatty acid having 18 carbon atoms. The unsaturated fatty acid having 18 carbon atoms is preferably mainly composed of oleic acid and linoleic acid obtained from plants such as soybean, and the structure of dimer acid is dimer oleic acid or dimer linoleic acid. Dimer acid is commercially available as “dimer acid”, and a commercially available product can be used in the present invention. However, a commercially available product is a mixture of a large number of compounds, but has one cyclic structure in the molecular structure. The main component is an aliphatic dibasic acid having 36 carbon atoms. Such dimer acid can be directly converted into a diester, or used in the form of a hydrogenated product obtained by partially or completely inducing unsaturated bonds partially or completely by hydrogenation. You can also. Preferred examples of the alcohol moiety constituting the dimer of dimer acid include higher alcohols usually used in cosmetics, dimer alcohol obtained by reducing dimer acid, and the like. The higher alcohols include cholesterol and aliphatic cyclic alcohols such as phytosterols. As a method for condensing dimer acid and alcohol into a diester, it can be produced by halogenating dimer acid with thionyl chloride or the like and then condensing in the presence of alkali. Among the diesters of such dimer acids, preferred examples include diisostearyl dimerdilinoleate, diisostearyl hydrogenated dimerisolinoleate, diphytosteryl dimerdilinoleate, diphytosteryl hydrogenated dimerlinoleate. , Dimer linoleic acid dimer linoleyl, hydrogenated dimer linoleic acid dibehenyl, dimer linoleic acid dimer linoleyl, hydrogenated dimer linoleic acid dimer linoleyl and the like, and mixed alcohol esters such as die It is also preferable to take a form like dimerginoleate (phytosteryl, isostearyl, cetyl, stearyl, behenyl). There are commercially available diesters of such dimer acids, and such commercially available products can be purchased and used. Examples of such commercially available products include prandour (manufactured by Nippon Seika Co., Ltd .; Plandool-S, Plandool-H), hydrogenated, which is dimer linoleic acid di (phytosteryl, isostearyl, cetyl, stearyl, behenyl). Rasplan PI-DA (LUSPLAN PI-DA; manufactured by Nippon Seika Co., Ltd.) which is isostearyl dimerlinoleate / phytosteryl, Rusplan DD-DA5 (LUSPLAN DD-DA5) which is hydrogenated dimerlinoleic acid dimerino Nippon Seika Co., Ltd.), hydrogenated dimer dilinoleic acid dimer dilinoleil, Rusplan DD-DA7 (LUSPLANDD-DA7; manufactured by Nippon Seika Co., Ltd.) and the like can be preferably exemplified. Such components have the effect of enhancing the transepidermal water transpiration suppression effect of the present invention. In order to achieve such an effect, the content of the diester of dimer acid is preferably 8 to 50% by mass, and more preferably 10 to 40% by mass.

The oily cosmetic of the present invention can be obtained by treating these components according to a conventional method. The oily cosmetic of the present invention can be used for hair, lips, face, body and the like, and is not particularly limited, but is preferably for lips and can be used as skin care and makeup cosmetics. Although the dosage form is not particularly limited, specifically, paste, oily jelly, ointment, pack, oil gel and the like can be suitably exemplified, and oily jelly and oil gel are preferable. When applied to the lip as described above, a particularly remarkable effect is exhibited.

Hereinafter, the present invention will be described in more detail with reference to examples, but it goes without saying that the present invention is not limited to such examples.

<Example 1>

The oily cosmetic of the present invention was prepared according to the formulation shown below. That is, after the ingredients in Table 1 were stirred and mixed, the ingredients were dispersed in the cake of the ingredients using a disper to obtain an oily jelly A having fluidity, which is an oily cosmetic of the present invention. .

＜実施例２〜３＞＜比較例１〜２＞

<Examples 2-3><Comparative Examples 1-2>

An oily jelly B was prepared in the same manner as described above by replacing the silylation-treated silica of the oily jelly A with dimer linoleic acid (isostearyl phytosteryl). Moreover, what changed collagen into dimer dilinoleic acid (isostearyl phytosteryl) was changed to oily jelly C, and poly (methacryloylphosphorylcholine / nbutyl methacrylate) 5% aqueous solution was changed to dimer dilinoleic acid (isostearyl phytosteryl). The oily jelly D was used. Further, an oily jelly E was prepared by changing the silylated silica, collagen and 5% poly (methacryloylphosphorylcholine / nbutyl methacrylate) aqueous solution to dimer linoleic acid (isostearyl phytosteryl). Oily jelly C, D is the oily cosmetic of the present invention, and oily jelly B, E is not included in the oily cosmetic of the present invention.
<Test Example 1>

Oily jelly A to E were applied to the lips, and changes in transdermal water transpiration immediately after application and 2 hours after application were measured using a TEWA meter (manufactured by Cyclone water transpiration monitor AS / CT1 / DAQ ASAHI BIOMED). . Using the following equation, the rate of change of transdermal moisture transpiration after 2 hours of application (hereinafter simply referred to as “rate of change”) was determined.
Rate of change (%) = Moisture transpiration 2 hours after application / Moisture transpiration immediately after application x 100
The results are shown in Table 2.

As shown in Table 2, the oily jelly A, C, D, which is the oily cosmetic of the present invention, has an increase in TWL after 2 hours of application compared to the oily jelly B, E not included in the oily cosmetic of the present invention. The rate was low, and the effect of suppressing transdermal moisture transpiration over time was observed. In addition, the effect of oily jelly A is remarkably high, and in addition to silylated silica, it contains all of collagen, adhesive oil agent, and bio-component-like polymer, and has a remarkable effect of suppressing transdermal moisture transpiration over time. It was also confirmed that It is assumed that such a change has an effect of improving the dispersion uniformity of the water-retaining polymer by such components in addition to the effect of silicified silica on the transepidermal water transpiration.
<Example 4>

  The oily cosmetic of the present invention was prepared according to the formulation shown below. That is, the component C in Table 3 was pulverized and dispersed in a ball mill. The ingredients were heated to 90 ° C or higher and dissolved, and then mixed well. While maintaining the temperature, ro and c were added and mixed with stirring. Further, after adding C and mixing well, the mixture was filled in a mold and cooled to 5 ° C. to obtain the lipstick F of the present invention.

＜実施例５〜７＞＜比較例３＞

<Examples 5 to 7><Comparative Example 3>

Lipstick G was prepared in the same manner as described above, except that the silylation-treated silica of Lipstick F was changed to cetyl 2-ethylhexanoate. Lipstick H was obtained by replacing marine collagen with cetyl 2-ethylhexanoate, and Lipstick I was obtained by replacing 20% aqueous solution of polymethacryloyl-L-lysine with cetyl 2-ethylhexanoate. Lipsticks F, H, and I are oily cosmetics of the present invention, and lipstick G is not included in the oily cosmetics of the present invention.
<Test Example 2>

Lipsticks F to I were applied to the lips, and the rate of change after 2 hours of application was determined in the same manner as in Test Example 1. The results are shown in Table 4.

As is apparent from Table 4, the lipsticks F, H, and I, which are the oily cosmetics of the present invention, have a TWL of 2 hours after the application compared to the lipstick G that is not included in the oily cosmetics of the present invention. The rate of increase is small, and the effect of the oily lipstick F is remarkably high. From this, the oily cosmetic of the present invention is excellent in the effect of suppressing transcutaneous moisture transpiration over time, from oily jelly to oil gel like lipstick, in addition to silylated silica, marine collagen, It was confirmed that by including all of the silylation-treated silica, the adhesive oil agent, and the biocomponent-like polymer, a remarkable effect of suppressing transdermal moisture transpiration over time was obtained.

The present invention can be applied as an oily cosmetic.

Claims (7)

1. An oily cosmetic comprising 1) an oil having an adhesiveness of 35 gf to 70 gf, and 2) a silylated silica. 2. The oily cosmetic according to claim 1, which is a cosmetic for preventing moisture transpiration from the skin over time. The oily cosmetic according to claim 1, further comprising a water-retaining polymer. The oily cosmetic according to any one of claims 1 to 3, wherein the water-retaining polymer is fish-derived collagen. The oily cosmetic according to any one of claims 1 to 4, wherein the water-retaining polymer is a biocomponent-like polymer. Biological component-like polymer is polymethacryloyloxyethyl phosphorylcholine, copolymer of methacryloyloxyethyl phosphorylcholine and alkyl (meth) acrylate, polymethacryloyloxyethyl glucoside, copolymer of methacryloyloxyethyl glucoside and alkyl (meth) acrylate, polymethacryloyl 6. One or more types selected from copolymers of -L-lysine and methacryloyl-L-lysine and alkyl (meth) acrylates, according to any one of claims 1 to 5. Oily cosmetics. The oily cosmetic according to any one of claims 1 to 6, wherein the oily cosmetic is for lips.