JP2006052203A - Makeup cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cosmetic having a hiding power and effects for enabling the appearance of the texture of the skin to be seen beautifully. <P>SOLUTION: The cosmetic contains (1) a fiber having a modified cross section having a # shape, and (2) a titanium oxide complex powder. Preferably, the length of the fiber having the modified cross section is 100-1,000 μm, and the fiber has a hollow structure. The fiber is preferably colored red and is preferably a nylon fiber. The titanium oxide complex powder is preferably a complex of titanium oxide with one or more kinds selected from zinc oxide, anhydrous silicic acid, aluminum oxide and zirconium oxide. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a cosmetic. More particularly, the present invention relates to a cosmetic suitable for a makeup cosmetic.

  Conventionally, makeup cosmetics are cosmetics that hide undesired portions of the skin such as spots and make the appearance look uniform and beautiful. From this point of view, development of a powder with high concealability is desired, and materials such as fine particle titanium dioxide have been developed. On the other hand, loss of bare skin feeling due to such a high concealment effect was raised as the next issue to be developed, and a soft focus technique using a semi-transparent spherical powder was developed. At present, the biggest issue is the addition of vivid expression and youthfulness. For this purpose, nylon fibers having a length of 200 to 500 μm are used as materials having such effects. Containing cosmetics have been developed. (For example, refer to Patent Document 1) Such a technique has certainly made it possible to give a vivid expression and youthfulness. However, in this technique, it is necessary to apply fibers in an orderly manner. There was a shortcoming that there was a need for techniques. This is because the optical effect has directionality, and in order to exhibit such an effect, it is necessary to arrange the fibers in the cosmetic in the appropriate direction. That is, there has been a demand for the development of a cosmetic that can impart the above-mentioned vivid expression and youthfulness without considering the direction of the fibers during application. Furthermore, in cosmetics containing such fibers, since the covering power cannot be expressed by the fibers, it becomes essential to contain concealing powders such as titanium dioxide and zinc oxide. In the presence of the conductive powder, the optical effect of the fiber itself is easily concealed, and the effect of containing the fiber may be reduced. That is, it has been desired to develop a cosmetic material having a hiding power and an effect that the texture of the skin looks beautiful.

  On the other hand, in the shape of the fiber, a technique for processing the cross section into an arbitrary shape is already known (see, for example, Patent Document 2, Patent Document 3, Patent Document 4, Patent Document 5, and Patent Document 6). There are commercially available ones. However, in such fibers, the cross-sectional shape is well-shaped, and there is no length of 100 to 1000 μm, and there is no thing for blending cosmetics. Also, in cosmetics, there was no idea what effect would be obtained by blending such shaped fibers, and there was no basis for blending such fibers into cosmetics. It was. Furthermore, a cosmetic containing 1) a cross-sectional shape having a well-shaped cross section and 2) a titanium dioxide composite powder is not known.

JP 2002-47120 A JP-A-11-217725 Japanese Patent Laid-Open No. 05-295615 Japanese Patent Laid-Open No. 10-110324 JP 2000-199122 A Japanese Patent Laid-Open No. 11-43820

  The present invention has been made under such circumstances, and an object of the present invention is to provide a cosmetic having an effect of concealing and a beautiful appearance of the skin texture.

In view of such a situation, the present inventors have sought for cosmetics having an effect of concealing power and a beautiful appearance of the skin, and as a result of intensive research efforts, 1) the cross-sectional shape is well-shaped. The present inventors have found that a cosmetic containing a fiber having an irregular cross section and 2) a titanium dioxide composite powder has such characteristics, and has completed the invention. That is, the present invention is as follows.
(1) A cosmetic comprising 1) a fiber having an irregular cross section having a well-shaped cross section and 2) a titanium dioxide composite powder.
(2) The cosmetic according to (1), wherein the fiber having the irregular cross section has a length of 100 to 1000 μm.
(3) The cosmetic according to (1) or (2), wherein the fiber having the irregular cross section has a hollow structure.
(4) The cosmetic according to any one of (1) to (3), wherein the fiber having the irregular cross section is colored red.
(5) The cosmetic according to any one of (1) to (4), wherein the modified cross-section fiber is a nylon fiber.
(6) The titanium dioxide composite powder is a composite of titanium dioxide and one or more selected from zinc oxide, anhydrous silicic acid, aluminum oxide and zirconium oxide. Cosmetics given in any 1 paragraph of 1)-(5).
(7) The titanium dioxide composite powder is a powder obtained by coating titanium dioxide with one or more selected from zinc oxide, anhydrous silicic acid, aluminum oxide and zirconium oxide, or titanium dioxide and an oxide. The cosmetic according to (6), wherein one or more selected from zinc, anhydrous silicic acid, aluminum oxide and zirconium oxide are sintered.
(8) The cosmetic according to any one of (1) to (7), wherein the titanium dioxide composite powder has a surface treated.
(9) The cosmetic according to any one of (1) to (8), wherein the content of the irregularly shaped cross-section fiber is 0.1 to 10% by mass.
(10) The cosmetic according to any one of (1) to (9), wherein the content of the titanium dioxide composite powder is 1 to 30% by mass.
(11) The cosmetic according to any one of (1) to (10), which is a makeup cosmetic.

  ADVANTAGE OF THE INVENTION According to this invention, the cosmetics which have a concealing power and the effect that the skin texture looks beautiful can be provided.

<1> Fiber having a modified cross section which is an essential component of the cosmetic of the present invention The cosmetic of the present invention is characterized by containing a fiber having a modified cross section having a well-shaped cross section. Here, the irregular cross section means that when a fiber is produced by spinning according to a normal production method, the cross section is a circle or an ellipse, but this cross sectional shape is consciously reproduced to other shapes. As a result, there are fibers having a conscious shape whose cross-section is not a circle or an ellipse. In the present invention, these are collectively referred to as irregular cross-section fibers. Such a fiber may be produced according to a conventional method. For example, there are a method of preventing drawing in a molten state from an irregularly shaped nozzle or a method of preventing injection from a deformed nozzle into a solidified liquid. The fiber having an irregular cross section, which is an essential component of the present invention, can be produced according to these known methods. Examples of the shape circumscribing the irregular cross section of the fiber include a triangular cross section, a square cross section, a circular cross section, and an elliptic cross section. Examples of a preferable circumscribed cross-sectional shape include a circular cross section and a square cross section. Furthermore, the square portion at the center of the well can be filled with another resin to form a solid structure, but it is preferable to form a space and have a hollow structure. Further, preferably 100 to 1000 [mu] m as the length of the fibers having such modified cross-section, more preferably from 300 to 500 [mu] m, the area of the cross section is preferably 100 to 1000 [mu] m ^2, 200 to 600 [mu] m ² is more preferable. As such a fiber material, any material used in the normal fiber field can be used without particular limitation. For example, nylon, acrylic, polyester, polyvinyl chloride and the like can be suitably exemplified. Particularly preferred is nylon. Preferred examples of nylon include 6-nylon and 6,6-nylon. Many of such modified cross-section fibers are already on the market, and various colors are available. The color is not particularly limited, but a red color is particularly preferable. This is because the optical effect is particularly remarkable in the case of red. As a preferable example of such a modified cross-section fiber already on the market, “Micro Art” (manufactured by Unitika Ltd.), which is a hollow nylon thread having a square cross section of a well-shaped cross section, is exemplified. In the cosmetic of the present invention, such a commercial product can be purchased, chopped into an appropriate length and used, and such a product is preferably used. Particularly preferred fibers are those in which “microart” is preferably 100 to 1000 μm, more preferably 300 to 500 μm. In the cosmetic of the present invention, such a fiber can be contained alone or in combination of two or more. In addition, the surface of such a fiber can be previously treated with hydrogenmethylpolysiloxane or a silane coupling agent. It is preferable to perform this process 1 to 10 mass% with respect to the fiber. The preferable content of such fibers in the cosmetic of the present invention is a total amount of 0.1 to 10% by mass, and more preferably 1 to 5% by mass with respect to the total amount of the cosmetic. This is because if the amount is too small, there may be a case where a vivid expression and youthfulness cannot be imparted, and if the amount is too large, there may be a case where the foreign matter feeling of the fibers becomes conspicuous.

  The effect of the fiber having an irregular cross-section, which is an essential component of the cosmetic of the present invention, is that, as shown in Examples below, the light irradiated to the application site is diffused and reflected almost in all directions, This is an effect that increases the brightness without accuracy dependence, and by improving the brightness, the impression of vivid expression and youthfulness can be enhanced.

<2> Titanium dioxide composite powder which is an essential component of the cosmetic of the present invention The cosmetic of the present invention is characterized by containing a titanium dioxide composite powder as an essential component. The titanium dioxide composite referred to in the present invention is a composite in which the composite is composed of a plurality of metal oxides, and at least 50% by mass of the metal oxide is titanium dioxide. As a constituent metal oxide other than titanium dioxide, any metal oxide used in cosmetics can be used without any particular limitation, but zinc oxide, anhydrous silicic acid, aluminum oxide and zirconium oxide. One or more selected from the above can be particularly preferably exemplified. Although there is no particular limitation on the method of compounding, specifically, titanium dioxide is arranged in the core and another oxide layer is formed around it, and the coating form, titanium dioxide and other metal oxides are mixed and fired. A sintered form that is a bonded form, a special form of the sintered form, a doped form in which a metal oxide is inserted into a crystal lattice of titanium dioxide, or a composite form thereof can be exemplified. Such titanium dioxide composites are already commercially available, and can be purchased and used. Examples of such commercially available products include “yellow titanium” (manufactured by Triple Pigment Co., Ltd.) obtained by sintering 70% by mass of titanium dioxide and 30% by mass of yellow iron oxide, and 92% by mass of titanium dioxide and 4% by mass of anhydrous silicic acid. "Titanium oxide JR800" (manufactured by Nippon Koken Co., Ltd.) coated with 4% by mass of alumina and "Taipaque TTO-F1", "Taipaque TTO-F2" or "Taipaque TTO-F6" modified with iron oxide and silica "(Both manufactured by Ishihara Sangyo Co., Ltd.) and the like can be preferably exemplified. Such titanium dioxide composite powder can contain only one species, or can contain two or more species in combination. The preferable content of the titanium dioxide composite powder in the cosmetic of the present invention is 1 to 30% by mass, and more preferably 2 to 25% by mass, based on the total amount of the cosmetic. If these components are too small, the hiding power will depend on ordinary titanium dioxide or zinc oxide, the content of these hiding powders will be too much, and the optical effect of the irregular cross-section fibers contained will be reduced. This is because there is a case of hindering, and when the amount is too large, the hiding power reaches its peak, and the optical effect of the deformed cross-section fiber contained may be hindered.

<3> Cosmetics of this invention The cosmetics of this invention contain the fiber which has the said unusual cross section, and the said titanium dioxide composite powder. As long as the cosmetic of the present invention is a cosmetic, it can be applied without any particular limitation, but the light irradiated on the application site of the fiber having an irregular cross section as an essential component is diffused almost in all directions. Considering the effect of reflecting and increasing the brightness of the irradiated part without accuracy dependence, that is, the effect of improving the brightness by such an effect, the effect of enhancing the impression of vivid expression and youthfulness, It is particularly preferable to apply to up cosmetics. The makeup cosmetic is preferably a cosmetic that is applied to the entire face, and is particularly preferably applied to a base cosmetic, foundation, or white powder.

In the cosmetic of the present invention, in addition to the essential components, the fiber having a modified cross section and the titanium dioxide composite powder, optional components usually used in cosmetics can be contained. 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 Oils such as hardened oil, mole, hardened 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, isostearyl Alcohol, behenyl alcohol, octyldodecanol, higher alcohol such as myristyl alcohol, cetostearyl alcohol, cetyl isooctanoate, isopropyl myristate, hexyldecyl isostearate, diisopropyl adipate, di-2-ethylhexyl sebacate, cetyl lactate, malic acid Diisostearyl, di-2-ethylhexanoic acid ethylene glycol, dicaprate neopentyl glycol, di-2-heptylundecanoic acid glycerin, tri-2-ethylhexanoic acid glycerin, tri-2-ethylhexanoic acid trimethylolpropane, tri Synthetic ester oils such as trimethylolpropane isostearate and pentane erythritol tetra-2-ethylhexanoate, dimethylpolysiloxane, methylphenylpoly Loxane, linear polysiloxane such as 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-imida Zolinium hydroxide-1-carboxyethyloxy disodium salt, etc.), betaine surfactants (alkyl betaine, amide betaine, sulfobetaine, etc.), amphoteric surfactants such as acylmethyltaurine, sorbitan fatty acid esters (sorbitan) Monostearate, sorbitan sesquioleate, etc.), glycerin fatty acids (glyceryl monostearate, etc.), propylene glycol fatty acid esters (propylene glycol monostearate, etc.), hardened castor oil derivatives, glycerin alkyl ethers, POE sorbitan fatty acid esters (POE sorbitan monooleate, polyoxyethylene sorbitan monostearate, etc.), POE sorbite fatty acid esters (POE-sorbitol monolaurate, etc.), POE glycerin fatty acid ester Tells (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) 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 ester and alkyl glucoside, polyethylene glycol, glycerin, 1,3-butylene glycol, erythritol, sorbitol, xylitol, maltitol, propylene Polyhydric alcohols such as recall, dipropylene glycol, diglycerin, isoprene glycol, 1,2-pentanediol, 2,4-hexylene glycol, 1,2-hexanediol, 1,2-octanediol, pyrrolidone carvone 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, gum tragacanth, keratan sulfate, chondroitin, mucoitin sulfate, Hydroxyethyl guar gum, carboxymethyl guar gum, dextran, keratosulfuric acid, locust bean gum, succinoglucan, carolinic acid, chitin, chitosan, carboxymethylchitin, agar, polyvinyl alcohol, polyvinylpyrrolidone, carboxyvinyl polymer, sodium polyacrylate, polyethylene Thickeners such as glycol and bentonite, surface may be treated, powders such as mica, talc, kaolin, synthetic mica, calcium carbonate, magnesium carbonate, silicic anhydride (silica), aluminum oxide, barium sulfate The surface may be treated, inorganic pigments not classified into titanium dioxide composite powder, such as bengara, yellow iron oxide, black iron oxide, cobalt oxide, ultramarine, bitumen, titanium oxide, zinc oxide, surface treated May be, Pearl agents such as mother titanium, fish phosphorus foil, bismuth oxychloride, red 202, red 228, red 226, yellow 4, blue 404, yellow 5 and red 505 which may be raked , Red 230, red 223, orange 201, red 213, yellow 204, yellow 203, blue 1, green 201, purple 201, red 204, organic dyes, polyethylene powder, poly Organic powders such as methyl methacrylate, nylon powder, organopolysiloxane elastomer, paraaminobenzoic acid UV absorber, anthranilic acid UV absorber, salicylic acid UV absorber, cinnamic acid UV absorber, benzophenone UV absorber Agent, sugar-based ultraviolet absorber, 2- (2′-hydroxy-5′-t-octylphenyl) benzotriazole, 4-methoxy-4 ′ ultraviolet absorbers such as t- butyl dibenzoylmethane, ethanol, lower alcohols such as isopropanol, vitamin A or its derivatives, vitamin B ₆ hydrochloride, vitamin B ₆ tripalmitate, vitamin B ₆ dioctanoate, vitamin B ₂ or Derivatives thereof, vitamin B ₁₂ such as vitamin B ₁₂ , vitamin B ₁₅ or a derivative thereof, α-tocopherol, β-tocopherol, γ-tocopherol, vitamin E such as vitamin E acetate, vitamin D, vitamin H, pantothenic acid, Preferred examples include vitamins such as pantethine and pyrroloquinoline quinone. The cosmetic of the present invention can be produced by treating fibers having an irregular cross section, which are 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 goes without saying that the present invention is not limited to such examples.

<Production Example 1>
“Micro art” (red) was cut into 400 μm to obtain a fiber 1 for cosmetics of the present invention.

  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.

Foundation 1 which is a cosmetic of the present invention was prepared according to the formulation shown below. That is, after mixing the prescription component A with a Henschel mixer, pulverize it with a pulverizer equipped with a 0.9 mm round hole screen, and then add the component B, mix with a Henschel mixer, and further mix with a Henschel mixer. A white powder was prepared by spraying the ingredients.
Silicone baking treatment “titanium oxide JR800” 20 parts by mass Silicone baking yellow iron oxide 5 parts by mass Silicone baking Bengala 0.5 parts by mass Silicone baking ultramarine 0.1 parts by mass Sericite 30 parts by mass Mica 23.4 parts by mass Silica 10 parts by mass Part 1 Fiber 1 of Production Example 1 1 part by weight Hajimethicone 5 parts by weight octyldodecyl oleate 5 parts by weight

<Test Example 1>
Foundation 1 and Foundation 1 with the titanium baking treatment “titanium oxide JR800” replaced with normal titanium dioxide subjected to silicone baking treatment. Fiber 1 of Production Example 1 cut from nylon fiber having a normal circular cross section to 400 μm Comparative Example 2 was prepared, and each of these was spread on a plastic plate with a doctor blade using a thickness of 10 mils. Numbers were counted. The results are shown in Table 1. From this, it can be seen that in the cosmetic of the present invention, the fiber is not concealed by the concealable powder and exhibits its effect.

<Test Example 2>
Characters were written on a white plastic plate with a B-6B pencil, and the three types of cosmetics of Test Example 1 were spread with a doctor blade at a thickness of 10 mils, and the hardness of the hardest pencil that could read the characters was examined. . The results are shown in Table 2. From this, it can be seen that the cosmetic of the present invention also maintains the hiding power.

Foundations 2 to 5 were prepared according to the prescription shown below. This was evaluated in the same manner as Test Example 1 and Test Example 2. The results are shown in Table 3. This shows that any titanium dioxide composite powder can be used.
Silicone baking treatment Titanium dioxide composite powder (Details are in Table 3) 20 parts by mass Silicone baking yellow iron oxide 5 parts by mass Silicone baking Bengara 0.5 parts by mass Silicone baking ultramarine 0.1 parts by mass Sericite 30 parts by mass Mica 23. 4 parts by weight silica 10 parts by weight Fiber 1 of Production Example 1 1 part by weight Hajimethicone 5 parts by weight octyldodecyl oleate 5 parts by weight

  The present invention can be applied to cosmetics having a beautiful finish.

Claims (11)

1. A cosmetic comprising 1) a fiber having a cross-sectional shape having a well-shaped cross section and 2) a titanium dioxide composite powder. The cosmetic according to claim 1, wherein a length of the fiber having the irregular cross section is 100 to 1000 µm. The cosmetic according to claim 1 or 2, wherein the fiber having an irregular cross section has a hollow structure. The cosmetic according to any one of claims 1 to 3, wherein the fiber having the irregular cross section is colored red. The cosmetic according to any one of claims 1 to 4, wherein the irregular cross-section fiber is a nylon fiber. The titanium dioxide composite powder is a composite of titanium dioxide and one or more selected from zinc oxide, anhydrous silicic acid, aluminum oxide, and zirconium oxide. 5. Cosmetics given in any 1 paragraph. The titanium dioxide composite powder is a powder obtained by coating titanium dioxide with one or more selected from zinc oxide, anhydrous silicic acid, aluminum oxide and zirconium oxide, or titanium dioxide, zinc oxide, anhydrous The cosmetic according to claim 6, wherein one or more selected from silicic acid, aluminum oxide and zirconium oxide are sintered. The cosmetic according to any one of claims 1 to 7, wherein the titanium dioxide composite powder has a surface treated. The cosmetic according to any one of claims 1 to 8, wherein a content of the irregularly shaped cross-section fiber is 0.1 to 10% by mass. The cosmetic according to any one of claims 1 to 9, wherein the content of the titanium dioxide composite powder is 1 to 30% by mass. The cosmetic according to any one of claims 1 to 10, which is a makeup cosmetic.