Solid powder cosmetic

Abstract

To provide a solid powder cosmetic which, despite containing 10 mass% or more of porous spherical silica, has superior use feeling and drop strength, and is free from caking.SOLUTION: A solid powder cosmetic comprises following components (A) to (C): (A) porous spherical silica having an oil absorption of less than 110 mL / 100 g in an amount of 10 mass% or more, (B) a metal soap, and (C) a water-holding oily agent.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to solid powder cosmetics.

Background Art

[0002] In solid powder cosmetics typified by powder foundations, microplastic beads are often blended for the purpose of imparting a smooth feel and a soft touch (see Patent Documents 1 and 2). However, in recent years, microplastic beads have become a major problem in the marine environment, and there is a demand for cosmetics that do not contain microplastic beads.

[0003] In order to solve such problems, solid powder cosmetics containing porous spherical silica, a water-retaining oil agent, and a phosphorylcholine group-containing polymer have been proposed (see Patent Document 3). However, when 10% by mass of porous spherical silica is blended, there are problems that the feel in use and the dropping strength decrease, and caking easily occurs.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0005] The present invention has been made in view of the above problems, and an object thereof is to provide a solid powder cosmetic that has good feel in use and dropping strength and does not cause caking even when 10% by mass or more of porous spherical silica is blended.

Means for Solving the Problems

[0006] As a result of intensive studies on such problems, the present inventors have completed the present invention. That is, the present invention is as follows. A solid powder cosmetic containing (A) to (C). (A) Porous spherical silica having an oil absorption of less than 110 mL / 100 g in an amount of 10% by mass or more (B) Metal soap (C) Water-retaining oil agent

Effect of the Invention

[0007] The solid powder cosmetic of the present invention exhibits the effect that even when 10% by mass or more of porous spherical silica is blended, the feel in use and the dropping strength are good and caking does not occur.

Mode for Carrying Out the Invention

[0008] Hereinafter, the mode for carrying out the present invention will be described in detail. However, the present invention is not limited to the following embodiments.

[0009] (A) Porous spherical silica having an oil absorption of less than 110 mL / 100 g in an amount of 10% by mass or more The component (A) porous spherical silica having an oil absorption of less than 110 mL / 100 g to be blended in the solid powder cosmetic of the present invention must have an oil absorption of less than 110 mL / 100 g. The lower limit of the oil absorption is preferably 20 mL / 100 g or more. When the oil absorption is less than 20 mL / 100 g, it may be non-porous silica instead of porous spherical silica. The oil absorption referred to in the present invention is determined by JIS K5101 (refined linseed oil).

[0010] Commercially available porous spherical silica may be used. For example, God Ball D-11C (oil absorption capacity: 100 mL / 100 g), God Ball D-25C (oil absorption capacity: 90 mL / 100 g), God Ball G-6C (oil absorption capacity: 30 mL / 100 g) (all manufactured by Suzuki Oil & Fat Co., Ltd.), SATINIER M5 (oil absorption capacity: 60 mL / 100 g), SATINIER M13 (oil absorption capacity: 60 mL / 100 g) (all manufactured by JGC Catalysts & Chemicals Ltd.), SB-150 (oil absorption capacity: 60 mL / 100 g) (manufactured by Miyoshi Kasei Kogyo Co., Ltd.), SENSIBEAD SI320 (oil absorption capacity: 50 mL / 100 g) (manufactured by Sensient Technologies Corporation), SILNOS260 (oil absorption capacity: 80 mL / 100 g), SILNOS290 (oil absorption capacity: 80 mL / 100 g) (all manufactured by ABC Nanotech Co., Ltd.), etc. are exemplified. These porous spherical silicas can be used alone or in combination of two or more.

[0011] The blending amount of the porous spherical silica with an oil absorption capacity of less than 110 mL / 100 g is preferably 10% by mass or more and 20% by mass or less based on the total amount of the solid powder cosmetic.

[0012] (B) Metallic soap Component (B) metallic soap blended in the solid powder cosmetic of the present invention is a polyvalent metal salt of a higher fatty acid. The metallic soap is not particularly limited as long as it can be blended in a cosmetic, but those having 12 to 18 carbon atoms in the fatty acid are particularly preferable. Examples of such salts include calcium, magnesium, zinc, aluminum, etc., and zinc salts or calcium salts are particularly preferable. Preferred examples of the metallic soap include zinc myristate, calcium myristate, zinc stearate, calcium stearate, etc.

[0013] The metallic soap is preferably 0.5% by mass or more and 5% by mass or less based on the total amount of the solid powder cosmetic. It is preferably blended in an amount of 1% by mass or more. It is preferably blended in an amount of 4% by mass or less.

[0014] (C) Water-retaining oil agent Component (C), the water-retaining oily agent to be formulated in the solid powder cosmetic of the present invention, can be any oily agent that has a water-retaining capacity equal to or greater than its own weight in the following water-retaining test, and can be used alone or in combination of two or more. The water-retaining test is to knead while gradually dropping purified water into 10 g of the evaluation oily agent at room temperature, and take the point where no more purified water can be added as the end point to obtain the amount of purified water added. Specifically, for example, lanolin, reduced lanolin, lanolin fatty acid, lanolin alcohol, lanolin acetate, hydroxylanolin, phytosteryl macadamia nut oil fatty acid, dioctyldodecyl lauroyl glutamate, amino acid phytosterol, castor oil, hydrogenated castor oil stearate, hydrogenated castor oil isostearate, hydrogenated castor oil triisostearate, hexaglycerin fatty acid ester, decaglycerin fatty acid ester, dipentaerythritol fatty acid ester, cholesteryl hydroxystearate, dimer dilinoleic acid (phytosteryl / isostearyl / cetyl / stearyl / behenyl), di(isostearyl / phytosteryl) dimer dilinoleate, (isostearic acid / behenic acid)(glyceryl / polyglyceryl-6) esters, hexa(hydroxystearic acid / stearic acid / rosin acid) dipentaerythrityl, etc. can be mentioned. In the present invention, it is preferable to use hydrogenated castor oil stearate from the viewpoints of the feeling of use and the dropping strength.

[0015] It is preferable to formulate component (C), the water-retaining oily agent, in an amount of 0.01% by mass or more and 5% by mass or less based on the total amount of the solid powder cosmetic of the present invention. More preferably, it is 0.1% by mass or more, and further preferably, it is 4% by mass or less.

[0016] In the solid powder cosmetic of the present invention, it is preferable to blend component (D), an ester oil having a hydroxyl group. The ester oil having a hydroxyl group is not particularly limited as long as it can be blended in cosmetics, but examples thereof include lauryl lactate, myristyl lactate, cetyl lactate, octyldodecyl lactate, trioctyl citrate, triisocetyl citrate, trioctyldodecyl citrate, diisostearyl malate, and the like. Among these ester oils having a hydroxyl group, it is preferable to use diisostearyl malate from the viewpoints of usability and dropping strength.

[0017] From the viewpoint of global environmental conservation, it is preferable that the solid powder cosmetic of the present invention is plastic-free.

[0018] In the solid powder cosmetic of the present invention, an oil agent other than component (B) and component (C) can be blended. This is because blending an oil agent enables the maintenance of a solid shape. Such liquid oils are those used in ordinary cosmetics and can be used without particular limitation as long as they are liquid at 25°C. Such liquid oils include vegetable oils such as rapeseed oil, avocado oil, almond oil, olive oil, kukui nut oil, sesame oil, wheat germ oil, rice germ oil, rice bran oil, rice oil, safflower oil, sunflower oil, soybean oil, evening primrose oil, corn oil, rapeseed oil, perilla oil, palm oil, palm kernel oil, castor oil, jojoba oil, grape seed oil, macadamia nut oil, meadowfoam oil, mink oil, coconut oil; Animal oils such as liquid horse oil, mink oil, and liquid lanolin; Linear or branched hydrocarbon oils such as liquid paraffin, light isoparaffin, squalane, and squalene; Higher fatty acids such as oleic acid and isostearic acid; Higher alcohols such as isostearyl alcohol, octyldodecanol, and hexyl decanol; Alkyl glyceryl ethers such as isostearyl glyceryl ether; Ester oils of linear fatty acids such as isopropyl myristate, butyl myristate, isopropyl palmitate, ethyl stearate, butyl stearate, ethyl oleate, ethyl linoleate, isopropyl linoleate, etc. and lower alcohols; Ester oils of linear fatty acids such as cetyl caprate, hexyl laurate, decyl myristate, myristyl myristate, cetyl myristate, cetyl palmitate, stearyl stearate, decyl oleate, oleyl oleate, etc. and linear higher alcohols; Ester oils of linear fatty acids such as isostearyl laurate, isotridecyl myristate, isocetyl myristate, isostearyl myristate, octyldodecyl myristate, 2-ethylhexyl palmitate, isocetyl palmitate, isostearyl palmitate, 2-ethylhexyl stearate, isocetyl stearate, isodecyl oleate, octyldodecyl oleate, octyldodecyl ricinoleate, etc. and alcohols with branched chains; Ester oils of fatty acids with branched chains such as ethyl isostearate, isopropyl isostearate, etc. and lower alcohols; Ester oils of fatty acids with branched chains such as cetyl 2-ethylhexanoate, cetostearyl 2-ethylhexanoate, stearyl 2-ethylhexanoate, hexyl isostearate, 2-hexyldecyl isostearate, etc. and linear higher alcohols; Ester oils of fatty acids and polyhydric alcohols such as ethylene glycol dioctanoate, ethylene glycol dioleate, propylene glycol dicaprylate, propylene glycol di(caprylate / caprate), propylene glycol dicaprate, dipropylene glycol dioleate, neopentyl glycol dicaprate, neopentyl glycol dioctanoate, glyceryl tricaprylate, glyceryl tri(2-ethylhexanoate), glyceryl tri(caprylate / caprate), glyceryl triisopalmitate, glyceryl diisostearate, trimethylolpropane tri(2-ethylhexanoate), trimethylolpropane triisostearate, pentaerythritol tetra(2-ethylhexanoate), pentaerythritol tetraisostearate, pentaerythritol tetra(2-ethylhexanoate), etc.; Ester oils of branched-chain fatty acids and branched-chain alcohols such as octyldodecyl neopentanoate, isocetyl octanoate, isostearyl octanoate, 2-ethylhexyl isopalmitate, hexyldecyl dimethyloctanoate, octyldodecyl dimethyloctanoate, 2-ethylhexyl isostearate, isocetyl isostearate, isostearyl isostearate, octyldodecyl isostearate, etc.; Ester oils of dibasic acids such as dioctyl succinate, diisopropyl adipate, diisobutyl adipate, dioctyl adipate, diethyl sebacate, diisopropyl sebacate, dioctyl sebacate, etc.; Examples include fluorine oils such as fluoropolyethers and perfluoroalkyl ether silicones.

[0019] The solid powder cosmetic of the present invention may contain powders other than the porous spherical silica, as long as the effects of the present invention are not impaired. Examples of powders that may be contained in the present invention include titanium oxide, red iron oxide, yellow iron oxide, black iron oxide, zinc oxide, cerium oxide, manganese violet, cobalt violet, chromium oxide, chromium hydroxide, cobalt titanate, ultramarine, Prussian blue, magnesium oxide, zirconium oxide, talc, kaolin, sericite, muscovite, phlogopite, synthetic mica, red mica, biotite, vermiculite, calcium carbonate, magnesium carbonate, magnesium silicate, aluminum silicate, barium silicate, calcium silicate, barium sulfate, calcium sulfate, calcium phosphate, hydroxyapatite, boron nitride, pearl pigments, and bismuth oxychloride. and other inorganic pigments; organic dyes such as Red No. 3, Red No. 10, Red No. 106, Red No. 201, Red No. 202, Red No. 204, Red No. 205, Red No. 220, Red No. 226, Red No. 227, Red No. 228, Red No. 230, Red No. 401, Red No. 405, Red No. 505, Yellow No. 4, Yellow No. 5, Yellow No. 202, Yellow No. 203, Yellow No. 205, Yellow No. 401, Orange No. 201, Orange No. 203, Orange No. 204, Orange No. 205, Orange No. 206, Orange No. 207, Blue No. 1, Blue No. 2, Blue No. 201, Blue 404, Green No. 3, Green No. 201, Green No. 204, and Green No. 205; and natural dyes such as chlorophyll and β-carotene.

[0020] The solid powder cosmetic of the present invention can contain an ultraviolet absorbing agent. Any ultraviolet absorbing agent that is generally used in cosmetics may be used, and examples of such an ultraviolet absorbing agent include ethylhexyl methoxycinnamate, diethylamino hydroxybenzoyl hexyl benzoate, octyl salicylate, polysilicone-15, t-butyl methoxydibenzoylmethane, oxybenzone, methylene bisbenzotriazolyl tetramethylbutylphenol, bisethylhexyloxyphenol methoxyphenyl triazine, and octocrylene.

[0021] In the solid powder cosmetic of the present invention, components that can be blended in ordinary cosmetics other than the above can be blended. Such components include surfactants, polymers, preservatives, beauty components, fragrances, and the like.

[0022] The method for producing the solid powder cosmetic of the present invention is not particularly limited. For example, after mixing the powder and other components as necessary, a method of press molding in a gold dish, a wet method of mixing with a solvent to form a slurry, filling it, and then removing the solvent and molding can be mentioned. It may also be carried on a support such as paper.

[0023] The solid powder cosmetic of the present invention can be used as a sunscreen, foundation, concealer, face powder, blusher, eyeshadow, eyebrow pencil, lipstick, etc., and is particularly preferably used as a foundation, face powder, or blusher.

Examples

[0024] Hereinafter, the present invention will be described more specifically with reference to examples. However, the present invention is not limited to the following examples.

[0025] The evaluation method of the examples will be described. [Usability] Three professional sensory evaluators in makeup evaluated the "flakiness", "smoothness", "softness", "moist feeling" when applying the solid powder cosmetic with a sponge puff and the resistance to caking when used multiple times as follows by discussion. “◎”: Very good “○”: Good “△”: Not very good “×”: Not good [Drop strength] The solid powder cosmetic was loaded into a predetermined container, and the number of times until the state of the press surface changed when it was dropped horizontally from a height of 50 cm was tested and evaluated as follows. “◎”: 8 times or more at 50 cm “○”: 6 times or more at 50 cm “△”: 5 times or less at 50 cm "×": 50 cm3 or less, 3 times

[0026] Solid powder cosmetics were prepared by a conventional method according to the formulation shown in Table 1, pressed into a 54φ gold dish at a pressing pressure of 25 kgf / cm 2 to form 11.2 g by pressing, loaded into a predetermined container, and subjected to testing.

[0027]

Table 1

[0028] As shown in Table 1, the solid powder cosmetics of the present invention had good usability (looseness, smoothness, softness, moist feeling), good dropping strength, and did not cause caking. On the other hand, Comparative Examples 1 and 2 in which porous spherical silica of less than 110 mL / 100 g was replaced with porous spherical silica of 110 mL / 100 g or more in oil absorption had problems in usability such as looseness, smoothness, and moist feeling and dropping strength. Further, Comparative Example 3 in which a water-retaining oil agent was not blended had a problem in dropping strength. Furthermore, Comparative Example 4 in which metal soap was not blended had problems in usability (looseness) and dropping strength.

Claims

【Claim 1】 A solid powder cosmetic containing (A) to (C). (A) Porous spherical silica with an oil absorption amount of less than 110 mL / 100 g, 10% by mass or more (B) Metal soap (C) Water-retaining oil agent

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