JPH0339483B2 - - Google Patents

Description

[Detailed description of the invention]

[Industrial Application Field] The present invention relates to a cosmetic with good makeup retention. [Prior Art] Conventionally, as a method for suppressing makeup discoloration in cosmetics, there has been a method for suppressing sebum secretion by incorporating lepulic acid or its salt (Japanese Patent Application Laid-Open No. 1983-1999).
164712) and a method of absorbing sweat and sebum by blending spherical porous resin powder (Japanese Unexamined Patent Application Publication No. 1982-164-
172580) etc. are known. However, although the conventional techniques improve makeup durability to some extent, they are not always fully satisfactory. [Problems to be Solved by the Invention] In view of the above circumstances, the present inventors have conducted intensive research to obtain a cosmetic with sufficient makeup retention, and as a result, they have discovered active zinc white, pyridoxine and/or its derivatives. The inventors have discovered that if they are incorporated into cosmetics in combination with the above, cosmetics with significantly superior makeup durability can be obtained, and based on this knowledge, they have completed the present invention. [Means for Solving the Problems] That is, the present invention is a cosmetic characterized by containing active zinc white and pyridoxine and/or a derivative thereof. Hereinafter, the configuration of the present invention will be explained in detail. Activated zinc white as used in the present invention refers to zinc white produced by a wet method, for example, by reacting a zinc sulfate (zinc oxide) solution and a soda ash solution, and calcining and pulverizing the reaction product. You can get it by twisting it. Such activated zinc white has a larger specific surface area than the zinc white conventionally used in the cosmetics field, which is obtained by a dry method etc. Although the specific surface area of conventional zinc white is generally less than 15 m ² /g. The active zinc white according to the present invention usually has an area of 25 m ² /g or more. In addition, in the case of the activated zinc white produced as described above, some basic zinc carbonate may remain depending on the firing conditions. In the cosmetic composition of the present invention, if too much of the basic zinc carbonate remains, the makeup-wearing effect may not be sufficiently exhibited. Preferred active zinc whites include those having a zinc oxide equivalent amount (JISK1410) of 75 to 100% by weight. The amount of active zinc white in the total amount of cosmetics is 0.1~
It is desirable to mix 50% by weight. Contains 0.1%
If the amount is less than 50%, the effect of improving makeup longevity may be diminished, and if it exceeds 50%, the resulting cosmetic may become powdery, hard to spread, and have a poor feeling of use. If the above active zinc white is available as a commercial product, for example, active zinc white Azo and Azo B manufactured by Seido Chemical Co., Ltd. and ZINCA #20 manufactured by Sakai Chemical Co., Ltd. are available. Although the active zinc white used in the present invention may be blended into cosmetics as is, it is preferably blended after coating the active zinc white on spherical powder. Spherical powders include organic powders such as polyamide resin, polyethylene resin, acrylic resin, polyester resin,
Inorganic powders such as fluororesins and cellulose resins include titanium dioxide, kaolin, and calcium carbonate. These spherical powders preferably have an average particle size of 1 μm to 30 μm from the viewpoint of usability, finish, etc. Methods for coating activated zinc white on spherical powder include a wet method in which activated zinc white and spherical powder are placed in an organic solvent and dry-up, and a dry method in which activated zinc white and spherical powder are mixed and compressed in a ball mill, etc. There is a law. The amount of active zinc white and spherical powder mixed is not particularly limited, but if the amount of spherical powder is large relative to activated zinc white, the treatment can be completed in a short time, but the spherical powder cannot be completely covered. Furthermore, if the amount of spherical powder is small, the processing time becomes long, and although the spherical powder can be completely coated, the active zinc white may not adhere to the spherical powder and remain. Therefore, the ratio of active zinc white to spherical powder is preferably about 1:99 to 20:8 by weight. When activated zinc white is coated on the spherical powder in this way, it spreads well and the active zinc white is evenly applied to the skin, further improving the makeup's long-lasting effect. Examples of the pyridoxine derivatives used in the present invention include pyridoxine dipalmitate, pyridoxine glycyrrhetinate, pyridoxine dilaurate,
Examples include pyridoxine tripalmitate, pyridoxine dicaprylate, and pyridoxine hydrochloride. Pyridoxine and/or its derivatives used in the present invention may be blended as a powder or dissolved in an oil used in cosmetics. The blending amount is preferably 0.01 to 15% by weight, particularly preferably
It is 0.05 to 5% by weight. If it is less than 0.01%, the effect of improving makeup durability may be weakened, and if it exceeds 15% by weight, it may become difficult to spread and may cause problems in terms of use, which is not preferable. Other general-purpose ingredients can be blended into the cosmetic according to the present invention. For example, talc, kaolin, sericite, muscovite, synthetic mica, phlogopite, red mica, biotite, lithium mica, vermiculite, magnesium carbonate, calcium carbonate, diatomaceous earth, magnesium silicate,
Inorganic powders such as calcium silicate, aluminum silicate, barium silicate, barium sulfate, strontium silicate, metal tungstate, silica, hydroxyapatite, zeolite, boron nitride, ceramic powder, polyamide resin, polyethylene resin, acrylic resin, Organic powders such as polyester resins, fluorine resins, and cellulose resins; inorganic white pigments such as titanium oxide and zinc oxide; inorganic red pigments such as iron oxide (red iron oxide) and iron titanate; and inorganic materials such as γ-iron oxide. brown pigment, yellow iron oxide,
Inorganic yellow pigments such as ocher, black iron oxide, inorganic black pigments such as carbon black, mango violet,
Inorganic purple pigments such as cobalt violet, inorganic green pigments such as chromium oxide, chromium hydroxide, and cobalt titanate, inorganic blue pigments such as ultramarine and deep blue, titanium oxide coated mica, titanium oxide coated bismuth oxychloride, Pearl pigments such as bismuth oxychloride, titanium oxide coated talc, fish scale foil, colored titanium oxide coated mica, metal powder pigments such as aluminum powder and cut pearl powder,
Red No. 104, Yellow No. 5, Green No. 3, Blue No. 1, Blue No. 2, Red No. 202, Red No. 226, Red No. 227, Red No. 230, Orange No. 206, Orange No. 207, Yellow No. 202, Green 201 Tar pigments such as No. 204, No. 201, and No. 205 green, lakes of natural pigments such as carminic acid, latcaic acid, calsamine, brasilin, and crocin, squalane, liquid paraffin, petrolatum, microcrystalline wax. , ozokerite, ceresin, cetyl alcohol, hexadecyl alcohol, oleyl alcohol, cetyl-
2-ethylhexanoate, 2-ethylhexyl palmitate, 2-octyldodecyl myisterate, 2-octyldodecyl gum ester, neopentyl glycol-2-ethylhexanate,
Various hydrocarbons and fat and oil esters such as isooctylic acid triglyceride, 2-octyldodecyl oleate, isopropyl limiristate, isostearic acid triglyceride, coconut oil fatty acid triglyceride, olive oil, avocado oil, beeswax, myristyl myristate, mink oil, and lanolin. , higher alcohols, waxes and other oils such as silicone oil, ultraviolet absorbers, antioxidants, preservatives,
Surfactants, humectants, fragrances, water, alcohol, thickeners, etc. can be added. [Effects of the Invention] The cosmetic of the present invention does not cause makeup to smudge and has good makeup retention. [Example] Examples of the present invention will be given below, and the effects thereof will be explained in detail. The present invention is not limited to these examples. The blending amount is in weight%. Examples 1 to 6, Comparative Examples 1 to 3 {Dual use (can be used with or without water) foundation}

【table】

[Table] The method for producing the powder used in Examples 1 to 6 and Comparative Examples 1 to 3 will be described below. First, 100 parts of sericite and 2 parts of methylhydrodiene polysiloxane were dissolved in 20 parts of chloroform, and after spray drying, the mixture was baked at 180°C for 3 hours to obtain hydrophobized sericite (1). In addition, 90 parts of nylon 12 powder (average particle size 4.8μ) was mixed with 10 parts of activated zinc white (Seido Kagaku Azo B) in a Henschel type mixer (Mitsui Miike Seisakusho FM10B) for 5 minutes, and then the obtained The mixed powder was mixed and compressed for 14 hours in a rotary ball mill (Universal Ball Mill manufactured by Yamato Kagaku) filled with alumina balls (Nippon Kagaku Togyo HD Alumina Balls). This composite powder is spherical,
Activated zinc white coated nylon 12 of (5) was obtained in which nylon 12 spherical powder was completely coated with activated zinc white powder. Next, the manufacturing methods of Examples 1 to 6 and Comparative Examples 1 to 3 will be described. Mix 1, 2, 3, 4, 5, 6, 7 with a Henschel mixer, add 9, 10, 11, 12, 13, 14,
A heated mixture of Nos. 15 and 16 was sprayed on the mixture, mixed, crushed, and molded into a medium plate to obtain a dual-use foundation. Table 2 shows the usage test results of Examples 1, 2, 3, 4, 5, and 6 and Comparative Examples 1, 2, and 3 by a panel of 20 people. The test was conducted by sensory evaluation1.
Evaluation was made on a 5-level scale of 5 to 5. 1...poor 2...slightly bad 3...fair 4...slightly good 5...good Results are expressed as average values as follows. ◎……4.5~5.0 ○……3.5~4.4 △……2.5~3.4 ×……1.5~2.4

[Table] As is clear from Table 1, by combining activated zinc white and pyridoxine and/or its derivatives, the makeup lasts much better than when each is combined alone. If you apply it by coating it on the surface of your body, it spreads better, sticks better, and has a better finish than if you apply it without coating it.
It also shows that the makeup lasts well.

Claims (1)

[Scope of Claims] 1. A cosmetic comprising active zinc white and pyridoxine and/or its derivatives. 2. The cosmetic according to claim 1, wherein the active zinc white is zinc white produced by a wet method. 3. The cosmetic according to claim 2, wherein the wet method comprises reacting a zinc sulfate solution and a soda ash solution, and calcining and pulverizing the reaction product. 4. The cosmetic according to any one of claims 1 to 3, wherein the active zinc white has a specific surface area of 25 m ² /g or more. 5 Activated zinc white is the equivalent amount of zinc oxide (JIS
The cosmetic according to any one of claims 1 to 4, which is an activated zinc white containing 75 to 100% by weight of K1410). 6 The amount of active zinc white in the total amount of cosmetics is 0.1~
Claims 1 to 5 which are 50% by weight
Cosmetics described in any of the paragraphs. 7. The cosmetic according to any one of claims 1 to 6, wherein the amount of pyridoxine and/or its derivative is 0.01 to 15% by weight. 8. The cosmetic according to claim 6, wherein the amount of pyridoxine and/or its derivative is 0.05 to 5% by weight. 9 Claims 1 to 8, in which activated zinc white is coated on the surface of spherical powder and incorporated into cosmetics.
Cosmetics described in any of the paragraphs. 10. The cosmetic according to claim 9, wherein the spherical powder is an organic powder. 11. The cosmetic according to claim 10, wherein the organic powder is a polyamide resin, polyethylene resin, acrylic resin, polyester resin, fluororesin, cellulose resin, or a copolymer thereof. 12. The cosmetic according to claim 9, wherein the spherical powder is an inorganic powder. 13 Claim 1 in which the inorganic powder is any one of titanium dioxide, kaolin, and calcium carbonate
Cosmetics according to item 2. 14 The weight ratio of activated zinc white and spherical powder is 1:99 ~
The cosmetic according to any one of claims 9 to 13, wherein the ratio is 20:80.