JP2008001643A - Horny plug-removing facial cleansing agent - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cosmetic having little irritation and removing horny plug of nostril. <P>SOLUTION: The horny plug-removing facial cleansing agent comprises spherical (vinyldimethicone/methiconesilsesquioxane)crosspolymer powder. The average particle diameter of the spherical (vinyldimethicone/methiconesilsesquioxane)crosspolymer powder is preferably 30 μm. The facial cleansing agent comprises, further, 6-20C dibasic acid diester and the facial cleansing agent has action removing horny plug. The facial cleansing agent comprises, further, spherical polyethylene powder. The facial cleansing agent comprises, preferably, a fatty acid soap as a cleansing component. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a face wash, and more particularly, to a face wash having an action of removing a plug.

  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. The horn plug that accumulates in the nose differs from the horn plug that accumulates in the scalp, etc., and is especially removed because it forms a complex of lipids with components that do not dissolve in the oil, such as exudates from the stratum corneum. It is said that it is difficult to do. 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. In particular, there has been a demand for the development of a cosmetic that can remove the lipid remaining in the pores after removing the horn plug and prevent the occurrence of comedones.

  On the other hand, as an attempt to remove square plugs by utilizing the cleaning ability of the cleaning material, a technique has been developed in which dextrin powder or cork powder is contained in the cleaning material as a scrubbing material and scavenged by this (for example, patents) Reference 6). However, with this technique, the removal of horn plugs depends only on the scrub material, so there was a limit to its effectiveness. Regarding scalp plugs, a technique for removing scalp plugs using a diester of sebacic acid is known (see, for example, Patent Document 7). No attempt has been made to mix them. A technique of using a (vinyl dimethicone / methicone silsesquioxane) crosspolymer in cosmetics is already known (see, for example, Patent Document 8), but no facial cleanser containing this is known. Therefore

JP-A-2005-336124 JP 2005-97147 A JP 2004-75575 A JP 2001-139426 A JP 2003-292411 A JP 2003-342162 A Japanese Patent Laid-Open No. 10-120532 JP-T-2004-524379

  The present invention has been made under such circumstances, and an object of the present invention is to provide a cosmetic that is less irritating and that can remove the corner plugs of the nose.

In view of such circumstances, the present inventors have sought for cosmetics that are less irritating and capable of removing nasal horn plugs. As a result of intensive research efforts, the inventors have obtained spherical (vinyl dimethicone / methicone silsesquioxane). ) It has been found that facial cleansers containing cross-polymer powder have such properties and have completed the invention. That is, the present invention is as follows.
(1) A face wash comprising a spherical (vinyl dimethicone / methicone silsesquioxane) cross-polymer powder.
(2) The face wash according to (1), wherein the spherical (vinyl dimethicone / methicone silsesquioxane) cross-polymer powder has an average particle size of 30 μm.
(3) The face wash according to (1) or (2), further comprising a dibasic acid diester having 6 to 20 carbon atoms.
(4) The face wash according to any one of (1) to (3), wherein the face wash has an action of removing a square plug.
(5) The facial cleanser according to any one of (1) to (4), further comprising spherical polyethylene powder.
(6) The face wash according to any one of (1) to (5), wherein the face wash contains a fatty acid soap as a washing component.

  ADVANTAGE OF THE INVENTION According to this invention, cosmetics with little irritation and which can remove the corner plug of a nose can be provided.

(1) (Vinyl Dimethicone / Methicone Silsesquioxane) Cross Polymer which is an Essential Component of the Face Wash of the Present Invention The face wash of the present invention contains a spherical (vinyl dimethicone / methicone silsesquioxane) cross polymer powder. It is characterized by that. In the present invention, the spherical shape allows a maximum strain of plus or minus 10% from the circumscribed true sphere. The “powder” referred to in the present invention means a solid having an average particle size of 100 μm or less. The solid may have elasticity and plasticity. Such a (vinyl dimethicone / methicone silsesquioxane) cross polymer is a highly inorganic material having a solid structure having elasticity in which a C—C bond is mixed with a siloxy bond, and one of the silicon atoms of silica is a methyl group. It is a cross polymer in a form combined with a silicone structure, and the average particle diameter is preferably 1 to 50 μm, more preferably 5 to 40 μm. These can contain only the seed | species, and can also contain it in combination of 2 or more type. Such cross-polymers have commercial products, and such commercial products can be purchased and used. Examples of such commercially available products include “silicone KSP-100” (average particle size 5 μm; rubber hardness 30 durometer A) and “silicone KSP-101” (average particle size 12 μm) sold by Shin-Etsu Chemical Co., Ltd. Rubber hardness 30 durometer A), “silicone KSP-102” (average particle size 30 μm; rubber hardness 30 durometer A), “silicone KSP-105” (average particle size 2 μm; rubber hardness 75 durometer A), “silicone KSP- 300 ”(average particle size 5 μm; rubber hardness 40 durometer A) can be suitably exemplified. These are solids having elasticity and elasticity as indicated by the rubber hardness. Such softness is preferable for baldness. In particular, a relatively soft material of around 30 durometer A is particularly preferable. Among the commercially available products, “silicone KSP-102” is particularly preferable. This is because a particle having this particle size becomes a sebum adsorbent and at the same time a scrub agent with very little irritation. Surprisingly, in facial cleansers, such ingredients also have the secondary effect of improving the foam quality to a fine and slick texture. The face wash of the present invention exhibits these two functions simultaneously. The preferable content of such components is preferably 1 to 5% by mass, more preferably 1.5 to 3% by mass, based on the total amount of the face wash.

(2) Facial cleanser of the present invention The facial cleanser of the present invention is characterized by containing the above essential components, and as a preferred dosage form, fatty acid soap is used as a detergent, and it is creamy. Features. As the soap, fatty acid potassium soap and fatty acid sodium soap can be preferably exemplified, and fatty acid potassium soap is preferably used as a main cleaning agent. This is due to the remarkable effect of foams produced from fatty acid potassium soap and (vinyl dimethicone / methicone silsesquioxane) crosspolymer. Therefore, when using the face wash of the present invention, foam well with warm water in the palm of the hand, put the foam on the face and rub the nose well with this foam to remove the horn plugs present in the nose. be able to. At this time, the presence of the (vinyl dimethicone / methicone silsesquioxane) crosspolymer significantly improves the foam quality in creamy detergents. By improving foaming, it is possible to prevent irritation from being induced by the facial cleanser remaining on the skin. Moreover, since the surface active ability is remarkably improved by taking the form of bubbles, the effect of removing the plug is also remarkably improved. Therefore, it is preferable to use in such a use mode. The strength of the foam waist can be adjusted to be strong or weak as appropriate depending on the presence of the square plug.

  The facial cleanser of the present invention is characterized by containing a diester of 6 to 20 carbon diacids as a preferred 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 face wash of the present invention, such a component has the effect of facilitating removal from the pores by dissolving the lipid in the solid structure around the square plug and the upper part of the square plug and dispersing it in the fatty acid soap solution, and removing it with warm water. Have In particular, by loosening the lipid structure at the top of the horn plug, it improves the adsorptivity with the spherical (vinyl dimethicone / methicone silsesquioxane) cross-polymer powder, which becomes a kind of floating and the horn plug becomes foamy. It is thought that it is adsorbed and detached. In order to express such an action, the total amount is preferably 0.01 to 10% by mass, more preferably 0.05 to 1% by mass with respect to the total amount of the face wash. This is because if the amount is too small, the above effect may not be achieved, and if the amount is too large, foaming of the fatty acid soap of the preparation may be impaired.

  In addition to the spherical (vinyl dimethicone / methicone silsesquioxane) cross-polymer powder, which is the essential component, the facial cleanser of the present invention may contain a polymer powder. By containing the body, it is possible to scrape insoluble components in the horn plug more efficiently. As such polymer powder, spherical polyethylene powder is preferable, and the particle size of the polyethylene powder is preferably 1-1000 μm, more preferably 5-600 μm. 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. (Vinyl dimethicone / methicone silsesquioxane) Cross polymer powder has a different hardness, so (vinyl dimethicone / methicone silsesquioxane) cross polymer powder is plastically deformed to make it more suitable for anatomy and scrub effect Can be played. In order to exert such an action, the polyethylene powder is contained in a total amount of 0.1 to 5% by mass, preferably 0.1 to 1.5% by mass, based on the total amount of the face wash. It is more preferable. If the amount is too small, the above-mentioned effect may not be exhibited. If the amount is too large, the above-mentioned effect reaches a peak, and the diester of dibasic acid or the spherical (vinyl dimethicone / methicone silsesquioxane) cross-polymer powder. This is because the effect may be impaired.

  In addition, as the dosage form of the facial cleanser of the present invention, it can be applied without particular limitation as long as it is a dosage form that is usually used for facial cleansers. There are cream-type facial cleansers, fatty acid sodium soaps, acyl glutamates, amphoteric surfactants, and liquid facial cleansers mainly containing sulfuric anionic surfactants. It is preferable to apply to a cream-type facial cleanser having soap, especially, fatty acid potassium soap as a main cleaning component. The preferable content of the fatty acid potassium soap in a preferred form is a soap equivalent mass% formed by blending 15 to 25 mass% of fatty acid and 6.5 to 8.5 mass% of potassium hydroxide. Outside this range, there are cases where the washoff effect of the horn plug is impaired.

  In the face wash of the present invention, in addition to the above-mentioned components, optional components that are usually used in face wash can be contained within a range that does not impair the effects of the present invention. The external preparation for skin of the present invention can contain, in addition to such components, optional components that are usually used in external preparations for skin. 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; Anionic surfactants such as potassium lauryl sulfate and alkylethanol triethanolamine ether; Cationic surfactants such as stearyltrimethylammonium chloride, benzalkonium chloride and laurylamine oxide; Imidazoline-based amphoteric surfactants Agents (2-cocoyl-2-imidazolinium hydroxide-1-carboxyethyloxy disodium salt, etc.), betaine surfactants (alkyl betaines, amide betaines, Amphoteric surfactants such as sulfobetaine), acylmethyltaurine, etc .; sorbitan fatty acid esters (such as sorbitan monostearate, sorbitan sesquioleate), glycerin fatty acids (such as glyceryl monostearate), propylene glycol fatty acid esters ( Propylene glycol monostearate), hardened castor oil derivative, glycerin alkyl ether, POE sorbitan fatty acid esters (POE sorbitan monooleate, polyoxyethylene sorbitan monostearate, etc.), POE sorbite fatty acid esters (POE-sorbit monolaur) POE glycerin fatty acid esters (POE-glycerin monoisostearate, etc.), POE fatty acid esters (polyethylene glycol monooleate, POE diste) Rate), POE alkyl ethers (POE2-octyldodecyl ether, etc.), POE alkylphenyl ethers (POE nonylphenyl ether, 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 ester, alkyl glucoside; polyethylene glycol, glycerin, 1, 3 -Butylene glycol, erythritol, sorbitol, xylitol, maltitol, propylene glycol, dipropylene glycol, diglycerin, isoprene glycol, 1,2-pentanediol, 2,4-hexanediol, 1 Polyhydric alcohols such as 2-hexanediol and 1,2-octanediol; moisturizing ingredients such as sodium pyrrolidonecarboxylate, lactic acid, sodium lactate; mica, talc, kaolin, synthetic mica whose surface may be treated , Powders such as calcium carbonate, magnesium carbonate, anhydrous silicic acid (silica), aluminum oxide, barium sulfate; surface may be treated, bengara, yellow iron oxide, black iron oxide, cobalt oxide, ultramarine, Inorganic pigments of bitumen, titanium oxide, zinc oxide; pearl agents such as titanium mica, fish phosphorus foil, bismuth oxychloride, which may be treated on the surface; red 202, red 228, which may be raked No., Red 226, Yellow No. 4, Blue No. 404, Yellow No. 5, Red No. 505, Red No. 230, Red No. 223, Orange No. 201, Red No. 213 No., Yellow No. 204, Yellow No. 203, Blue No. 1, Green No. 201, Purple No. 201, Red No. 204, etc .; Organic powders such as polymethyl methacrylate, nylon powder, organopolysiloxane elastomer; 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- UV absorbers such as 5'-t-octylphenyl) benzotriazole and 4-methoxy-4'-t-butyldibenzoylmethane; lower alcohols such as ethanol and isopropanol; vitamin A or a derivative thereof, vitamin B6 hydrochloride , Vitamin B6 tripalmitate, vitamin B6 dioctanoate, vitamin B2 or its derivatives Vitamin B such as vitamin B12, vitamin B15 or derivatives thereof; α-tocopherol, β-tocopherol, γ-tocopherol, vitamin E such as vitamin E acetate, vitamin D, vitamin H, pantothenic acid, panthetin, pyrroloquinoline quinone Preferred examples include vitamins such as; antibacterial agents such as phenoxyethanol.

  The face wash of the present invention can be produced by treating the essential components, preferred components, and optional components according to a conventional method. The facial cleanser thus obtained can remove horn plugs accumulated in the small nose by washing.

  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.

  The face wash of the present invention was produced according to the formulation shown below. That is, the components (a) and (b) were each heated to 90 ° C., and (b) was gradually added to (a) while stirring. At the same time, Comparative Example 1 in which “Silicone KSP-102” was replaced with “Flow Beads CL5007”, Facial wash 2 in which stearic acid, myristic acid, lauric acid and potassium hydroxide were replaced with POE (3) sodium lauryl sulfate were similarly prepared. did.

<Test Example 1>
About the said face wash 1, comparative example 1, and face wash 2, the paneler 1 group 5 persons and 3 groups 15 persons were used, and the removal effect of a square plug was investigated. That is, the nose of the panel was photographed with a “video microscope” manufactured by Moritex Co., Ltd., and the number of accumulated square plugs per field of view was counted. After that, the sample was used to wash the face, and 10 minutes after the face was washed again with a “video microscope”, and the number of accumulated square plugs per field of view was counted. The number of accumulated plugs after washing was divided by the number of accumulated plugs before washing, and multiplied by 100 to calculate the remaining rate of plugs. The results are shown in Table 2. From this, it can be seen that the face wash of the present invention is excellent in the action of removing the plug. Washing was performed by foaming face wash with a net in advance, applying it onto the face, rubbing it evenly by hand four times, and then pouring warm water over the entire face for 2 minutes with a shower.

<Test Example 2>
Two syringes each embedded with 40 mixtures of a 4: 1 mass ratio of keratin powder and castor oil at a depth of 1.5 mm were prepared using a syringe barrel equipped with a cloak needle on a silicone rubber plate. Using this as a small nose model, a horn plug removal test was conducted. One was applied with foamed facial cleanser 1 and rubbed by hand 4 times, and the warm water was allowed to flow for 2 minutes, and the other was applied with a commercially available square plug removal sheet. After the treatment, the rubber plate was exposed to iodine vapor for 5 minutes, and the coloring degree of the injection hole was compared. As a result, the treatment with the face wash 1 was significantly thinner. It became clear that pores could be washed.

  In accordance with the formulation shown in Table 3 below, face wash 3-5, which are the face wash of the present invention, were produced in the same manner as face wash 1. Table 4 shows the evaluation results obtained by the method of Test Example 1. From this, it can be seen that the face wash of the present invention has an excellent action for removing keratin plugs.

  According to the formulation shown in the following Table 5, face wash 6 to 8, which are the face wash of the present invention, were produced in the same manner as face wash 1. Table 6 shows the evaluation results obtained by the method of Test Example 1. From this, it can be seen that the face wash of the present invention has an excellent action for removing keratin plugs.

  In accordance with the formulation shown in Table 7 below, face wash 9 as a face wash of the present invention was produced in the same manner as face wash 1. The residual plug rate was 10.2 ± 8.6%. This was subjected to a foaming test together with face wash 1, comparative example 1, face wash 6-8. In the foaming test, 500 mL of water was added to 1 g of the sample, mixed for 3 minutes with a mixer, transferred to a graduated cylinder, and the volume of the foam was measured immediately and 30 minutes later. The results are shown in Table 8. From these data, it can be seen that the presence of the polyethylene powder is preferable both in terms of removal of square plugs and in terms of foaming.

  The present invention can be applied to a face wash.

Claims (6)

A face wash comprising a spherical (vinyl dimethicone / methicone silsesquioxane) cross-polymer powder. The face wash according to claim 1, wherein the spherical (vinyl dimethicone / methicone silsesquioxane) cross-polymer powder has an average particle size of 30 μm. The face wash according to claim 1 or 2, further comprising a dibasic acid diester having 6 to 20 carbon atoms. The face wash according to any one of claims 1 to 3, wherein the face wash has an action of removing a square plug. Furthermore, spherical polyethylene powder is contained, The face wash in any one of Claims 1-4 characterized by the above-mentioned. In the said face wash, fatty acid soap is contained as a washing | cleaning component, The face wash in any one of Claims 1-5 characterized by the above-mentioned.