JP2007230928A - Gel cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a horny plug removing cosmetic developing low irritancy while keeping excellent horny plug-removing effect. <P>SOLUTION: The gel cosmetic contains (1) a 6-20C dibasic acid diester and (2) spherical polyethylene powder. The 6-20C dibasic acid diester is preferably selected from diethyl adipate, diisopropyl adipate and diisopropyl sebacate, the spherical polyethylene powder preferably contains at least two kinds of powder having different average particle diameters and the cosmetic preferably further contains a triglucopolysaccharide. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a cosmetic, and more particularly, to a gel-like cosmetic suitable for removing horn plugs.

  The problem of horn plugs, a complex of lipid metabolites and stratum corneum that accumulates in pores, especially in the pores of the nose, in today's dietary habits that have significantly increased lipid intake. Is becoming a serious problem compared to a long time ago. Excessive accumulated horn plugs are said to cause acne and other symptoms due to microorganisms nested in the plugs. Even if such symptoms do not occur, the presence of dark pores impairs the appearance of the person and may adversely affect the impression formation of others. Against this background, various means have been developed for efficiently and safely removing the plugs formed in the pores, particularly the pores of the nose. Such means include, for example, a method in which a square plug is adhered to a sticky sheet and then removed by peeling it off (see, for example, Patent Document 1), and an angle is obtained using an ester of lauroyl sarcosine. A method of dissolving the lipid of the stopper and removing it by a treatment such as suction (for example, see Patent Document 2), and a method of dissolving and removing the corner plug together with the stratum corneum by rubbing with a basic substance (for example, Patent Document 3), a method of removing while rubbing with a sticky foam (for example, see Patent Document 4), and a scrub cosmetic containing a keratolytic component such as urea or α-hydroxy acid to dissolve the keratin. And a method of scraping with a scrubbing agent (for example, see Patent Document 5). Among these, the method described in Patent Document 1 is highly safe and has a high removal effect, but requires suction by a suction device. In addition, the removal effect is the highest in the method described in Patent Document 5, but it is accompanied by the removal of horn plugs, although the expression of irritation due to abrasion is suppressed. There is a high possibility of stimulating. Accordingly, it has been desired to develop a cosmetic for removing horn plugs that has the same effect as that of the method described in Patent Document 5 but has a lower possibility of irritation.

  On the other hand, a gel-like cosmetic composition comprising 1) a dibasic acid diester having 6 to 20 carbon atoms and 2) a spherical polyethylene powder is not known at all. It has not been known at all that it is a cosmetic for removing horn plugs having a low possibility of irritation, while having the effect of removing horn plugs comparable to or greater than the method described in Document 5.

JP-A-2005-336124 JP 2005-97147 A JP 2004-75575 A JP 2001-139426 A JP 2003-292411 A

  The present invention has been made under such circumstances, and an object of the present invention is to provide a cosmetic for removing keratin plugs that has an excellent horn plug removing effect and has a low possibility of irritation.

In view of such a situation, the present inventors have intensively researched for cosmetics for removing corneal plugs which have an excellent effect of removing keratin plugs and have a low possibility of irritation. As a result, 1) It has been found that gel-like cosmetics having a structure containing a dibasic acid diester having 6 to 20 carbon atoms and 2) spherical polyethylene powder have such characteristics, and have completed the invention. .
(1) A gel-like cosmetic comprising 1) a dibasic acid diester having 6 to 20 carbon atoms and 2) a spherical polyethylene powder.
(2) The gel makeup according to (1), wherein the dibasic acid diester having 6 to 20 carbon atoms is selected from diethyl adipate, diisopropyl adipate and diisopropyl sebacate Fee.
(3) The gel cosmetic according to (1) or (2), wherein the spherical polyethylene powder contains at least two kinds of average particle diameters.
(4) The gel cosmetic according to any one of (1) to (3), further comprising triglucopolysaccharide.
(5) The gel cosmetic according to any one of (1) to (4), comprising an alkyl-modified carboxyvinyl polymer and / or a salt thereof.
(6) The gel cosmetic as set forth in any one of (1) to (5), which is a cosmetic used for removing square plugs.

  According to the present invention, it is possible to provide a cosmetic for removing horn plugs having an excellent effect of removing horn plugs and having a low possibility of irritation.

(1) Diester of a dibasic acid which is an essential component of the cosmetic of the present invention The cosmetic of the present invention is characterized by containing a diester of a dibasic acid having 6 to 20 carbon atoms as an essential component. That is, a dibasic acid having 2 to 10 carbon atoms and an alkyl diester having 2 to 6 carbon atoms are contained as essential components. The alkyl groups constituting the diester may be different or the same, but the same is more preferable. Preferred examples of such diesters include, for example, diethyl tartrate, diisopropyl tartrate, diethyl adipate, diisopropyl adipate, diethyl sebacate, diisopropyl sebacate, and diisopropyl sebacate is particularly preferred. These can contain only the seed | species, and can also contain it in combination of 2 or more type. Further, such components are general-purpose raw materials for cosmetics, and are easily available. In the gel-like cosmetic of the present invention, such a component has an action of facilitating detachment from the pores by dissolving lipids in the solid structure around the corner plug and the upper part of the corner plug. In particular, by loosening the structure of the lipid at the top of the horn plug, the adsorptivity with the polyethylene powder to be described later is increased, and in order to express such an action, the total amount is 0.01 to It is preferable to contain 10 mass%, More preferably, it is 0.05-1 mass%. This is because if the amount is too small, the above-mentioned effects may not be achieved, and if the amount is too large, the gel structure of the preparation may be impaired.

(2) Polyethylene powder which is an essential component of the gel cosmetic of the present invention The gel cosmetic of the present invention is characterized by containing polyethylene powder. As a particle size of the said polyethylene powder, 1-1000 micrometers is preferable and 5-600 micrometers is more preferable. The shape is preferably spherical, and the spherical shape allows a maximum strain of plus or minus 10% from the circumscribed true sphere. As such polyethylene powder, it is preferable to combine two types of particle size distributions of large and small, and as the large particle size distribution, those having a particle size distribution of 200 to 600 μm can be preferably exemplified, The thing of 5-15 micrometers can be illustrated preferably. These can be classified to this size, or can be used after sieving, or commercially available products already having such a particle size distribution can be purchased and used. Examples of such commercially available products include “Flow Beads CL5007” (manufactured by Sumitomo Seika Co., Ltd.) having a particle size of 250 to 500 μm, “Flow Beads CL20200” (manufactured by Sumitomo Seika Co., Ltd.) having a particle size of 5 μm, and the like. Can be preferably exemplified. The mass ratio of the large and small polyethylene powders is preferably 25: 1 to 25: 4. Such a component seems to have an action of scraping the horn plug and an action of assisting the horn plug to come out of the pore. In order to exert such an effect, the polyethylene powder is preferably contained in a total amount of 1 to 5% by mass, more preferably 1.5 to 3% by mass, based on the total amount of the cosmetic. . This is because if the amount is too small, the above-mentioned effect may not be exhibited, and if the amount is too large, the above-mentioned effect may reach a peak, and the effect of the dibasic acid diester may be impaired. In this way, by loosening the fixation structure of the horn plug with the diester of the dibasic acid and scraping it out with polyethylene powder, the horn plug can be removed without dissolving the horny layer of the skin. For this reason, the horn plug can be removed with less influence on the stratum corneum barrier function and less influence on skin physiology.

(3) Gel-like cosmetic of the present invention The cosmetic of the present invention is a gel-like cosmetic and contains the essential components. As the gel, an aqueous gel is preferable, and an alkyl-modified carboxyvinyl polymer and / or a salt thereof is preferably used as a gelling agent that forms the aqueous gel. By using such a gelling agent, gelation can be achieved in the vicinity of neutrality, irritation to the skin can be suppressed to a very low level, and by adopting an aqueous gel dosage form, This is because the stopper is dispersed while maintaining its shape and can be easily removed. Examples of the alkyl-modified carboxyvinyl polymer that are commercially available include “Pemlen TR-1”, “Pemlen TR-2”, and “Carbopol 1382” (both manufactured by Goodrich). “Carbopol 1382” is particularly preferred, although a thickening action is exhibited at the lowest pH. As a salt of such a component, any salt usually used in cosmetics can be applied without particular limitation. For example, alkali metal salts such as sodium salt and potassium salt, alkaline earth metals such as calcium salt and magnesium salt Preferred examples include organic amine salts such as salts, ammonium salts, triethylamine salts, triethanolamine salts and monoethanolamine salts, and basic amino acid salts such as lysine salts and alginates. The preferable content of such components is 0.1 to 1% by mass, and more preferably 0.2 to 0.5% by mass, based on the total amount of the cosmetic material. Furthermore, in addition to such components, 10 to 60% by weight of the carboxyvinyl polymer and / or salt thereof can be used as an auxiliary gelling agent. Such an alkyl-modified carboxyvinyl polymer and / or salt thereof can be used. And a combination of carboxyvinyl polymer and / or a salt thereof is a preferred form. This is because a preferable viscosity is obtained in a preferable pH range.

  As long as the cosmetic composition of the present invention maintains a gel-like shape, a small amount of an oily component can be contained in the form of an emulsion. Preferably, however, the gel-like shape does not contain such an oily component. More preferred. The applicable cosmetic is not particularly limited as long as an aqueous gel-like dosage form can be used as the dosage form. However, in terms of its function, it is particularly useful as a cosmetic for removing square plugs. preferable. Of course, since the cosmetic itself of the present invention has excellent moisture retention, it can be used exclusively for this purpose.

  In addition to such components, the gel cosmetic of the present invention can contain optional components usually used in cosmetics. Such optional ingredients include, for example, 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, hydrogenated coconut oil Oil, wax, oil such as beeswax, canola wax, carnauba wax, ibotarou, lanolin, reduced lanolin, hard lanolin, jojoba wax, 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, isostearyl Higher alcohols such as alcohol, behenyl alcohol, octyldodecanol, myristyl alcohol, cetostearyl alcohol; cetyl isooctanoate, isopropyl myristate, hexyldecyl isostearate, cetyl lactate, diisostearyl malate, ethylene di-2-ethylhexanoate Glycol, neopentyl glycol dicaprate, glycerin di-2-heptylundecanoate, glycerin tri-2-ethylhexanoate, trimethylolpropane tri-2-ethylhexanoate, trimethylolpropane triisostearate, tetra-2-ethylhexane Synthetic ester oils such as acid pentane erythritol; chain polysiloxanes such as dimethylpolysiloxane, methylphenylpolysiloxane, and diphenylpolysiloxane; Cyclic polysiloxanes such as kutamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexanesiloxane; silicones such as amino-modified polysiloxane, polyether-modified polysiloxane, alkyl-modified polysiloxane, and fluorine-modified polysiloxane Oils such as oils; fatty acid soap (sodium laurate, sodium palmitate, etc.), anionic surfactants such as potassium lauryl sulfate, alkylsulfuric acid triethanolamine ether; stearyltrimethylammonium chloride, benzalkonium chloride, laurylamine oxide Cationic surfactants such as: imidazoline-based amphoteric surfactants (2-cocoyl-2-imidazolinium hydroxide-1-carboxyethyloxy-2 sodium Salt), betaine surfactants (alkylbetaines, amidebetaines, sulfobetaines, etc.), amphoteric surfactants such as acylmethyltaurine; 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), hydrogenated castor oil derivatives, glycerin alkyl ethers, POE sorbitan fatty acid esters (POE sorbitan monooleate, monostearic acid polyol) Chiethylene sorbitan, etc.), POE sorbite fatty acid esters (POE-sorbitol monolaurate, etc.), POE glycerin fatty acid esters (POE-glycerol monoisostearate, etc.), POE Fatty acid esters (polyethylene glycol monooleate, POE distearate, etc.), POE alkyl ethers (POE2-octyldodecyl ether, etc.), POE alkyl phenyl ethers (POE nonylphenyl ether, etc.), Pluronic types, POE / POP alkyl ethers Nonionic surface actives such as POE / POP2-decyltetradecyl ether, Tetronics, POE castor oil / hardened castor oil derivatives (POE castor oil, POE hardened castor oil, etc.), sucrose fatty acid esters, alkyl glucosides, etc. Agents: polyethylene glycol, glycerin, 1,3-butylene glycol, erythritol, sorbitol, xylitol, maltitol, propylene glycol, dipropylene glycol, diglycerin, isoprene Polyhydric alcohols such as recall, 1,2-pentanediol, 2,4-hexanediol, 1,2-hexanediol, 1,2-octanediol; triglucopolysaccharide; sodium pyrrolidonecarboxylate, lactic acid, sodium lactate, etc. Moisturizing ingredients; powders such as mica, talc, kaolin, synthetic mica, calcium carbonate, magnesium carbonate, anhydrous silicic acid (silica), aluminum oxide, barium sulfate, etc., whose 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, oxy Pearl agents such as bismuth chloride; red 202, red 228, red 226, yellow 4 and blue 40 which may be raked No. 4, Yellow No. 5, Red No. 505, Red No. 230, Red No. 223, Orange No. 201, Red No. 213, Yellow No. 204, Yellow No. 203, Blue No. 1, Green No. 201, Purple No. 201, Red No. 204 Organic pigments such as polyethylene powder, polymethyl methacrylate, nylon powder, organopolysiloxane elastomer, etc .; 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-butyldi UV absorbers such as benzoylmethane; lower alcohols such as ethanol and isopropanol; vitamin A or a derivative thereof; Mineral B6 hydrochloride, vitamin B6 tripalmitate, vitamin B6 dioctanoate, vitamin B2 or derivatives thereof, vitamin B12 such as vitamin B12, vitamin B15 or derivatives thereof; α-tocopherol, β-tocopherol, γ-tocopherol, vitamin E acetate Preferred examples include vitamins such as vitamin E, vitamin D, vitamin H, pantothenic acid, panthetin, pyrroloquinoline quinone, and the like; and antibacterial agents such as phenoxyethanol. Among these, a particularly preferable component is a component that does not inhibit removal of a horn plug and can suppress a decrease in skin water retention caused by removal of the horn plug, and a triglucopolysaccharide is preferably exemplified as such a component. it can. As such triglucopolysaccharides, there are those commercially available for cosmetics, and such commercially available products can be used. As such a commercially available product, for example, “Pullulan” sold by Hayashibara Laboratory Co., Ltd. can be preferably exemplified. In order to exert the above action, the triglucopolysaccharide is preferably contained in an amount of 1 to 10% by mass, more preferably 2 to 6% by mass, based on the total amount of the cosmetic. In addition, 0.00005 to 0.0002 mass of the tea extract obtained by extracting the leaf portion of the camellia tea with 1,3-butanediol in order to prevent the occurrence of inflammation due to oxidation of the lipid remaining after removal of the horn plug % Content is also preferable.

  The gel cosmetic of the present invention can be produced by treating such essential components and optional components according to a conventional method.

  Hereinafter, the present invention will be described in more detail with reference to examples, but it is needless to say that the present invention is not limited to such examples.

  A gel-like cosmetic 1 as a cosmetic of the present invention was produced according to the formulation shown below. In other words, after the components of A and B are heated to 80 ° C. and the component of C is dispersed in B, the mixture is neutralized by stirring and gelled, and this is stirred and cooled to obtain a gel-like cosmetic. 1 was obtained.

<Test Example 1>
About the corneal plug removal effect of the gel cosmetic 1, panelists 1 group 5 people and 4 groups 20 people were used, and the horn plug removal effect and the change of the horny layer barrier function after the horn plug removal were examined. Samples include gel-like cosmetic 1, comparative example 1 in which diisopropyl sebacate of gel-like cosmetic 1 is replaced with water, comparative example 2 in which “flow beads CL5007” and “flow beads CL20200” are replaced with water. And the comparative example 3 which shows prescription in the following Table 2 was used. In other words, after washing the face, the panelist measures the transcutaneous dissipated moisture (TEWL) with "Tevameter" (Integral), and then takes an enlarged photo of the nose with a video microscope (Moritech). The number of accumulated plugs per field of view was counted. Thereafter, the sample was scrubbed using a sample, and after the cosmetic was wiped off, the face was washed with water, and the TEWL and the number of square plugs per field of view were counted as before the test. The remaining percentage of square plugs was obtained by dividing the number of square plugs after the test by the number of square plugs before the test and multiplying by 100. The TEWL increase rate was obtained by subtracting TEWL before test from TEWL after test, dividing this by TEWL before test, and multiplying by 100. The results are shown in Table 3. As a result, the cosmetic of the present invention has a property that TEWL does not remarkably increase while exhibiting the same effect of removing horn plugs as a cosmetic containing urea, α-hydroxy acid, and granulated granules. Recognize.

  In the same manner as in Example 1, a gel cosmetic 2 was produced. According to the method of Test Example 1, the percentage of remaining plugs was 9.1 ± 5.1%, and the TEWL increase rate was 9.2 ± 4.8%.

  In the same manner as in Example 1, a gel cosmetic 3 was produced. According to the method of Test Example 1, the percentage of remaining plugs was 8.2 ± 3.7%, and the TEWL increase rate was 11.4 ± 3.9%.

  In the same manner as in Example 1, a gel cosmetic 4 was produced. According to the method of Test Example 1, the percentage of remaining plugs was 7.1 ± 3.3%, and the TEWL increase rate was 7.5 ± 2.8%.

  In the same manner as in Example 1, a gel cosmetic 5 was produced. According to the method of Test Example 1, the rate of remaining plugs was 8.8 ± 5.6%, and the TEWL increase rate was 10.1 ± 5.8%.

  The present invention can be applied to cosmetics for removing horn plugs.

Claims (6)

A gel-like cosmetic comprising 1) a dibasic acid diester having 6 to 20 carbon atoms and 2) a spherical polyethylene powder. The gel cosmetic according to claim 1, wherein the dibasic acid diester having 6 to 20 carbon atoms is selected from diethyl adipate, diisopropyl adipate and diisopropyl sebacate. The gel cosmetic according to claim 1 or 2, wherein the spherical polyethylene powder contains at least two kinds of average particle diameters. The gel cosmetic according to any one of claims 1 to 3, further comprising triglucopolysaccharide. The gel cosmetic according to any one of claims 1 to 4, comprising an alkyl-modified carboxyvinyl polymer and / or a salt thereof. The gel-like cosmetic according to any one of claims 1 to 5, wherein the gel-like cosmetic is used for removing horn plugs.