Powder cosmetic

Abstract

Provided is a powder cosmetic having excellent impact resistance, usability, and adhesion. This powder cosmetic contains (a) a powder, (b) 0-15 mass% inclusive of an oil component, (c) more than 0-19 mass% inclusive of a polyol, and (d) 0.1-10 mass% inclusive of a higher alcohol, the total content of the (b) oil component, the (c) polyol, and the (d) higher alcohol being 5.0-20 mass% inclusive, and the content of the (b) oil component, the (c) polyol, and the (d) higher alcohol being 0.1-10 mass% inclusive. The ratio of the amount obtained by adding the content of the polyol (c) and the content of the higher alcohol (d) to the total content is 0.10-1.0 (inclusive).

Description

Technical Field

[0001] The present disclosure relates to powder cosmetics. Background Art

[0002] Powder cosmetics containing a powder component, which can be used for foundations and the like, are known.

[0003] Patent Document 1 discloses a solid cosmetic, which is a solid cosmetic containing a powder, and contains an oil component of 33% by mass or more and a humectant of 3 to 15% by mass based on the total amount of the cosmetic.

[0004] Patent Document 2 discloses a solid powder cosmetic containing (A) ethyl cellulose, (B) a monohydric liquid alcohol having 18 to 24 carbon atoms in total, (C) a powder, and (D) a liquid ester oil having a molecular weight of 1100 or less and one or more hydroxyl groups.

[0005] Prior Art Documents

[0006] Patent Documents

[0007] Patent Document 1: Japanese Patent Application Laid-Open No. 2012-197241

[0008] Patent Document 2: Japanese Patent Application Laid-Open No. 2019-104690 Summary of the Invention

[0009] Problems to be Solved by the Invention

[0010] Powder cosmetics sometimes contain an oil component together with the powder. However, since the oil component functions to consolidate the powder, the powder cosmetics containing the oil component sometimes break in the cosmetics due to impacts such as dropping, or it is difficult to pick up the cosmetics with a powder puff or the like, or the application to the skin becomes thick, resulting in poor usability and other adverse conditions.

[0011] In addition, for powder cosmetics, close adhesion to the skin, so-called fit, is usually also required.

[0012] Therefore, the subject of the present disclosure is to provide a powder cosmetic excellent in impact resistance, usability, and fit.

[0013] Means for Solving the Problems

[0014] <Aspect 1>

[0015] A powder cosmetic containing (a) a powder, (b) an oil component of 0% by mass or more and 15% by mass or less, (c) a polyhydric alcohol of more than 0% by mass and 19% by mass or less, and (d) a higher alcohol of 0.1% by mass or more and 10% by mass or less.

[0016] The total content of the (b) oil component, the (c) polyol, and the (d) higher alcohol is 5.0% by mass or more and 20% by mass or less, and the ratio of the amount obtained by adding the contents of the (c) polyol and the (d) higher alcohol to the total content is 0.10 or more and 1.0 or less.

[0017] <Scheme 2>

[0018] The cosmetic according to Mode 1, which contains 0.1% by mass or more and 19% by mass or less of the (c) polyol.

[0019] <Scheme 3>

[0020] The cosmetic according to Mode 1 or 2, wherein the (b) oil component is a polar oil.

[0021] <Scheme 4>

[0022] The cosmetic according to any one of Schemes 1 to 3, wherein the (c) polyol is at least one selected from dipropylene glycol, butylene glycol, 1,2 - propylene glycol, and 1,3 - propylene glycol.

[0023] <Scheme 5>

[0024] The cosmetic according to any one of Modes 1 to 4, wherein the (d) higher alcohol is at least one selected from stearyl alcohol, isostearyl alcohol, batyl alcohol, cetyl alcohol, and behenyl alcohol.

[0025] <Scheme 6>

[0026] The cosmetic according to any one of Modes 1 to 5, which is a solid powder cosmetic.

[0027] <Scheme 7>

[0028] The cosmetic according to any one of Modes 1 to 6, which is used as a foundation.

[0029] <Scheme 8>

[0030] A method for manufacturing a powder cosmetic, wherein a mixture containing (a) powder, 0% by mass or more and 15% by mass or less of (b) oil component, more than 0% by mass and 19% by mass or less of (c) polyol, and 0.1% by mass or more and 10% by mass or less of (d) higher alcohol is filled into a container and dry - formed. The total content of the (b) oil component, the (c) polyol, and the (d) higher alcohol is 5.0% by mass or more and 20% by mass or less, and the ratio of the amount obtained by adding the contents of the (c) polyol and the (d) higher alcohol to the total content is 0.10 or more and 1.0 or less.

[0031] Advantages of the Invention

[0032] According to the present disclosure, a powder cosmetic having excellent impact resistance, usability, and fit can be provided. DETAILED DESCRIPTION

[0033] Hereinafter, embodiments of the present disclosure will be described in detail. The present disclosure is not limited to the following embodiments, and can be implemented with various modifications within the scope of the gist of the invention.

[0034] The powder cosmetic of the present disclosure contains prescribed amounts of oil, polyol, and higher alcohol together with powder.

[0035] Although not limited by the principle, the mechanism of action of the powder cosmetic of the present disclosure having excellent impact resistance, usability, and fit is considered to be as follows.

[0036] The present inventors have found that the amount of oil added to a powder cosmetic affects impact resistance, usability and fit, but have also found that it is difficult to satisfy all of impact resistance, usability and fit simply by adjusting the amount of oil.

[0037] As a result of further intensive research under such circumstances, the present inventors unexpectedly found that if a part or all of the oil components contained in the powder cosmetic are replaced with higher alcohols and polyols, and these are mixed in a predetermined ratio, a powder cosmetic having excellent impact resistance, usability and adhesion can be obtained. In other words, it is believed that the higher alcohols and polyols complement the insufficient performance of the oil components and function in a well-balanced manner, and as a result, the powder cosmetic can improve all the performances of impact resistance, usability and adhesion.

[0038] Definitions of terms in this disclosure are as follows.

[0039] In the present disclosure, “impact resistance” refers to a property in which the cosmetic does not suffer from a defective appearance (eg, cracks, fissures, crazing, or peeling) when the cosmetic is subjected to an impact (eg, an impact caused by falling).

[0040] In the present disclosure, "usability" refers to the usability of powder cosmetics, for example, it refers to the ease of obtaining powder cosmetics from a powder box filled with powder cosmetics using a powder puff, or the ease of applying the obtained cosmetics to the skin (for example, lightly applying the cosmetics to the skin).

[0041] In the present disclosure, “fitting feeling” refers to the feeling of cosmetics sticking to the skin when the cosmetics are applied to the skin.

[0042] In the present disclosure, "polyol" refers to an organic compound having two or more alcoholic hydroxyl groups in one molecule. Regarding the alcoholic hydroxyl group, it can also be further specified as 10 or less, 8 or less, or 6 or less. However, the polyols in the present disclosure do not include glycerol, diglycerol, and 1,2 - hexanediol.

[0043] In the present disclosure, "higher alcohol" refers to a monohydric alcohol having 6 or more, 8 or more, 10 or more, 12 or more, or 15 or more carbon atoms. The higher alcohol can be saturated or unsaturated, and can be linear or branched. Regarding the number of carbon atoms, it can also be further specified as 30 or less, 25 or less, or 20 or less.

[0044] "Powder Cosmetics"

[0045] The powder cosmetics of the present disclosure contain powder, and can adopt, for example, a powdery form called loose powder or a solid form called pressed powder. Here, in the case of intending a powdery form called loose powder, the powder cosmetics of the present disclosure can be called "powdery cosmetics", and in the case of intending a solid form called pressed powder, the powder cosmetics of the present disclosure can be called "solid powder cosmetics".

[0046] 〈(a) Powder〉

[0047] The powder used in the powder cosmetics of the present disclosure is not particularly limited. For example, spherical or non - spherical powders commonly used in the field of powder cosmetics can be used. The powders can be used alone or in combination of two or more. In powder cosmetics, as the powder, it can contain only spherical powders or only non - spherical powders, or can also contain both spherical powders and non - spherical powders.

[0048] In some embodiments, the powder cosmetics of the present disclosure contain spherical powders. The size of the spherical powders is not particularly limited. For example, the average particle diameter of the spherical powders can be 0.1 μm or more, 0.5 μm or more, 1.0 μm or more, 3.0 μm or more, or 5.0 μm or more, and can be 50 μm or less, 30 μm or less, 20 μm or less, 15 μm or less, or 10 μm or less.

[0049] The average particle diameter can be defined as the average value of the diameters of the powders (particles) optically measured by the dynamic light scattering method assuming the powder shape is spherical.

[0050] In some embodiments, the powder cosmetic of the present disclosure contains non-spherical powder. The non-spherical powder refers to powder that is not included in the above-mentioned spherical powder and can be defined by, for example, the aspect ratio. The aspect ratio of the non-spherical powder can be 1.2 or more, 1.5 or more, 2.0 or more, 2.5 or more, 3.0 or more, 5.0 or more, 7.0 or more, 10 or more, 15 or more, 20 or more, 25 or more, or 30 or more. Additionally, it can be 200 or less, 170 or less, 150 or less, 120 or less, 100 or less, 70 or less, or 50 or less.

[0051] The aspect ratio can be measured, for example, by microscopic observation. Take any 10 or more (e.g., 100) powders, measure the length in the length direction (plane direction) and the length in the width direction (thickness direction) of each powder, and calculate by dividing the length in the length direction by the length in the width direction (i.e., length in the length direction / length in the width direction). The length in the length direction is selected as the longest length, and the length in the width direction is selected as the shortest length. The aspect ratio can be the average of the aspect ratios of any 10 or more (e.g., 100) powders.

[0052] There is no particular limitation on the blending amount of the powder. For example, relative to the total amount of the cosmetic, it can be 50% by mass or more, 55% by mass or more, 60% by mass or more, 65% by mass or more, 70% by mass or more, 75% by mass or more, 80% by mass or more, or 85% by mass or more. Additionally, it can be 95% by mass or less, 93% by mass or less, 90% by mass or less, 87% by mass or less, 85% by mass or less, 83% by mass or less, or 80% by mass or less.

[0053] There is no particular limitation on the type of the powder. For example, inorganic powder and / or organic powder can be used.

[0054] As components constituting the inorganic powder, for example, talc, kaolin, sericite, muscovite, phlogopite, synthetic mica, synthetic phlogopite iron, red mica, biotite, calcined talc, calcined sericite, calcined muscovite, calcined phlogopite, vermiculite, magnesium carbonate, calcium carbonate, aluminum silicate, barium silicate, calcium silicate, magnesium silicate, strontium silicate, Ca / Al borosilicate, metal tungstate, magnesium, silicon dioxide, aluminum oxide, zeolite, aluminum hydroxide, barium sulfate, calcined calcium sulfate (plaster of Paris), calcium phosphate, fluorapatite, hydroxyapatite, ceramic powder, metal soaps (e.g., zinc myristate, calcium palmitate, aluminum stearate, etc.), boron nitride, photochromic titanium oxide (titanium dioxide sintered with iron oxide), and reduced zinc white can be mentioned. Such powders are sometimes blended for the purpose of increasing the amount or enhancing the cosmetic as pigments other than the coloring pigments shown below. Powders used for such purposes are sometimes referred to as extender pigments.

[0055] In addition, as the inorganic powder, for example, an inorganic pigment (sometimes referred to as "inorganic coloring pigment") can also be used. As the inorganic pigment, for example, inorganic white pigments (e.g., titanium dioxide, zinc oxide); inorganic red pigments (e.g., iron oxide (iron oxide red), iron titanate); inorganic brown pigments (e.g., γ-iron oxide); inorganic yellow pigments (e.g., iron oxide yellow, loess); inorganic black pigments (e.g., iron oxide black, low-valent titanium oxide); inorganic purple pigments (e.g., manganese violet, cobalt violet); inorganic green pigments (e.g., chromium oxide, chromium hydroxide, cobalt titanate); inorganic blue pigments (e.g., ultramarine, dark blue); pearlescent pigments (e.g., bismuth oxychloride; fish scale foil; mica titanium; iron oxide-coated mica titanium; low-valent titanium oxide-coated mica titanium; photochromic mica titanium; pigments using talc, glass, synthetic fluorophlogopite, silicon dioxide, bismuth oxychloride, etc. as the substrate instead of mica; pigments coated with low-valent titanium oxide, colored titanium oxide, iron oxide, aluminum oxide, silicon dioxide, zirconium oxide, zinc oxide, cobalt oxide, aluminum, etc. in addition to titanium dioxide as the coating; functional pearlescent pigments, pigments coated with resin particles on the surface of pearlescent pigments; pigments coated with aluminum hydroxide particles on the surface of pearlescent pigments; pigments coated with zinc oxide particles on the surface of pearlescent pigments; pigments coated with barium sulfate particles on the surface of pearlescent pigments); and metal powder pigments (e.g., aluminum powder, copper powder).

[0056] As the components constituting the organic powder, for example, silicone elastomer, silicone, silicone resin-coated silicone elastomer, polyamide resin (nylon), polyolefin resin (e.g., polyethylene), polymethyl methacrylate, polystyrene, copolymer resin of styrene and acrylic acid, benzoguanamine resin, fluororesin (e.g., polytetrafluoroethylene), starch (e.g., octenyl succinic anhydride starch Al), and cellulose can be cited.

[0057] In addition, as the organic powder, for example, an organic pigment (sometimes referred to as "organic coloring pigment") and / or a pigment can also be used. As the organic pigment, for example, organic pigments such as zircon, barium, or aluminum lake can be cited. Specifically, for example, organic pigments such as Red No. 201, Red No. 202, Red No. 204, Red No. 205, Red No. 220, Red No. 226, Red No. 228, Red No. 405, Orange No. 203, Orange No. 204, Yellow No. 205, Yellow No. 401, and Blue No. 404, Red No. 3, Red No. 104, Red No. 106, Red No. 227, Red No. 230, Red No. 401, Red No. 505, Orange No. 205, Yellow No. 4, Yellow No. 5, Yellow No. 202, Yellow No. 203, Green No. 3, and Blue No. 1 can be cited.

[0058] As the pigment, for example, natural pigments can be cited. Specifically, for example, chlorophyll and β-carotene can be cited.

[0059] The powder used in the powder cosmetic of the present disclosure can be treated with a surface treatment agent, or it can also not be treated. In the case of using a powder treated with a surface treatment agent (e.g., an acrylic-silicone graft copolymer), the proportion of the treated powder relative to the total powder can be set to 100% or less, 80% or less, 50% or less, 30% or less, 15% or less, 10% or less, 5% or less, 1% or less, 0.5% or less, 0.1% or less, 0.05% or less, or 0.01% or less.

[0060] 〈(b) Oil component〉

[0061] The powder cosmetic of the present disclosure may optionally contain an oil component. The oil component can be used alone or in combination of two or more. The oil component can typically function as an adhesive between powders.

[0062] The blending amount of the oil component in the powder cosmetic of the present disclosure is 0% by mass or more and 15% by mass or less relative to the total amount of the cosmetic. From the viewpoints of impact resistance, usability, and fitting feeling, the blending amount is preferably greater than 0% by mass, 1.0% by mass or more, 3.0% by mass or more, 5.0% by mass or more, 7.0% by mass or more, or 10% by mass or more, less than 15% by mass, 14% by mass or less, 13% by mass or less, 12% by mass or less, 11% by mass or less, 10% by mass or less, 9.0% by mass or less, 8.0% by mass or less, 5.0% by mass or less, 3.0% by mass or less, 1.0% by mass or less, 0.5% by mass or less, or 0.1% by mass or less.

[0063] The type of the oil component is not particularly limited, and examples thereof include liquid oils and fats, solid oils and fats, waxes, hydrocarbon oils, silicone oils, and polar oils. Among them, polar oils exhibit compatibility with polyols and the like, and can further improve usability and fitting feeling compared with other oil components, and thus are preferred oil components.

[0064] (Liquid oils and fats)

[0065] Liquid oils and fats refer to oils and fats that are liquid at normal temperature (e.g., 25°C). Examples thereof include avocado oil, camellia oil, turtle oil, macadamia nut oil, corn oil, mink oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, peach kernel oil, wheat germ oil, camellia flower oil, castor oil, linseed oil, safflower oil, cottonseed oil, perilla oil, soybean oil, peanut oil, tea seed oil, torreya oil, rice bran oil, Chinese tung oil, Japanese tung oil, jojoba oil, germ oil, and triglyceride.

[0066] (Solid oils and fats)

[0067] Solid fats refer to fats that are solid at normal temperature (e.g., 25°C). Examples thereof include cocoa butter, coconut oil, horse fat, hydrogenated coconut oil, palm oil, beef tallow, mutton tallow, hydrogenated beef tallow, palm kernel oil, lard, beef bone fat, wood wax kernel oil, hydrogenated oils, beef foot fat, wood wax, and hydrogenated castor oil.

[0068] (Waxes)

[0069] Examples of waxes include beeswax, candelilla wax, cotton wax, carnauba wax, myrica wax, insect wax, spermaceti wax, montan wax, bran wax, lanolin, kapok wax, acetylated lanolin, liquid lanolin, sugarcane wax, isopropyl lanolate, hexyl laurate, reduced lanolin, jojoba wax, anhydrous lanolin, shellac wax, POE lanolin alcohol ether, POE lanolin alcohol acetate, POE cholesterol ether, polyethylene glycol lanolate, and POE hydrogenated lanolin alcohol ether.

[0070] (Hydrocarbon oils)

[0071] Examples of hydrocarbon oils include liquid paraffin, ozokerite, squalane, pristane, paraffin wax, ceresine, squalene, petrolatum, microcrystalline wax, olefin oligomers, isododecane, and isocetane.

[0072] (Silicone oils)

[0073] Examples of silicone oils include linear silicone oils, branched silicone oils, and cyclic silicone oils.

[0074] Examples of linear silicone oils include dimethylpolysiloxane (sometimes referred to as "polydimethylsiloxane"). More specifically, dimethylpolysiloxane having a kinematic viscosity of 0.65 cs or more, 1 cs or more, 1.5 cs or more, or 2 cs or more, and 50 cs or less, 30 cs or less, 20 cs or less, 10 cs or less, or 6 cs or less can be cited. Here, these viscosities refer to the kinematic viscosity in an atmosphere of 25°C.

[0075] Examples of branched silicone oils include methylpolytri methylsiloxane, tris(trimethylsilyl)methylsilane, and tetrakis(trimethylsilyl)silane.

[0076] Examples of cyclic silicone oils include octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane.

[0077] (Polar oils)

[0078] There is no particular limitation on polar oils. For example, polar oils having an IOB of 0.10 or more can be used. In addition, organic ultraviolet absorbers having an IOB of 0.10 or more can be regarded as polar oils.

[0079] The IOB value of a polar oil and an organic ultraviolet absorber that can be regarded as a polar oil can be set, for example, to 0.10 or more, 0.11 or more, 0.12 or more, or 0.13 or more, and can also be set to 0.60 or less, 0.55 or less, 0.50 or less, 0.45 or less, or 0.40 or less. Here, the IOB value is an abbreviation of Inorganic / Organic Balance (inorganic / organic ratio), and is a value representing the ratio of the inorganic value to the organic value, and is an index representing the degree of polarity of an organic compound. Specifically, the IOB value = inorganic value / organic value. Regarding the "inorganic value" and "organic value", for example, for one carbon atom in a molecule, the "organic value" is set to 20, and for one hydroxyl group, the "inorganic value" is set to 100. In this way, the "inorganic value" and "organic value" corresponding to various atoms or functional groups are set, and by accumulating the "inorganic value" and "organic value" of all atoms and functional groups in the organic compound, the IOB value of the organic compound can be calculated (for example, refer to "Organic Concept Map - Basics and Applications -" written by Yoshio Koda, p. 11 to 17, published by Sankyo, released in 1984).

[0080] a. Polar oil with an IOB of 0.10 or more

[0081] Examples of polar oils that satisfy such conditions include isopropyl myristate (IOB value = 0.18), octyl palmitate (IOB value = 0.13), isopropyl palmitate (IOB value = 0.16), butyl stearate (IOB value = 0.14), hexyl laurate (IOB value = 0.17), myristyl myristate (IOB value = 0.11), decyl oleate (IOB value = 0.11), isononyl isononanoate (IOB value = 0.20), isotridecyl isononanoate (IOB value = 0.15), cetyl ethylhexanoate (IOB value = 0.13), pentaerythritol tetraethylhexanoate (IOB value = 0.35), diethylhexyl succinate (IOB value = 0.32), dioctyl succinate (IOB value = 0.36), ethylene glycol distearate (IOB value = 0.16), diglycerol diisostearate (IOB value = 0.29), neopentyl glycol didecanoate (IOB value = 0.25), diisostearyl malate (IOB value = 0.28), trimethylolpropane triisostearate (IOB value = 0.16), tri-2-ethylhexyl glycerol (glycerol tri(ethylhexanoate)) (IOB value = 0.35), trimethylolpropane trioctanoate (IOB value = 0.33), trimethylolpropane triisostearate (IOB value = 0.16), diisobutyl adipate (IOB value = 0.46), 2-octyldodecyl N-lauroyl-L-glutamate (IOB value = 0.29), 2-ethylhexyl adipate (IOB value = 0.16), diisopropyl sebacate (IOB value = 0.40), 2-ethylhexyl palmitate (IOB value = 0.13), 2-ethylhexyl ethylhexanoate (IOB value = 0.20), triisostearin (IOB value = 0.16), PPG-3 dipivalate (IOB value = 0.52), tri(caprylic / capric) glycerol (IOB value = 0.33), PPG-3 dipivalate (IOB value = 0.52), and alkyl benzoates (e.g., alkyl benzoates having 12 to 15 carbon atoms) (IOB value = 0.18). Among them, from the viewpoints of impact resistance, usability, and adhesion, pentaerythritol tetraethylhexanoate (IOB value = 0.35) and tri-2-ethylhexyl glycerol (glycerol tri(ethylhexanoate)) (IOB value = 0.35) are preferred.

[0082] b. Organic UV absorbers with an IOB of 0.10 or more

[0083] Examples of organic UV absorbers that satisfy such conditions include octocrylene, octyl methoxycinnamate (ethylhexyl methoxycinnamate), polysiloxane-15, etc. This UV absorber can be used alone or in combination of two or more. Among them, from the viewpoints of impact resistance, usability, and adhesion, octyl methoxycinnamate is preferred.

[0084] 〈(c) Polyol〉

[0085] The powder cosmetic of the present disclosure in one embodiment contains a polyol. The polyol is a component that may affect impact resistance, usability, and fit, and in particular, affects usability. Regarding usability, by using a polyol, compared with the case of using a higher alcohol without using a polyol, for example, a lighter feeling of use when spreading on the skin can be further improved.

[0086] It should be noted that in the field of powder cosmetics, there may also be the following cases: as long as impact resistance and fit can be obtained, regarding usability, as long as the usability is improved compared with a powder cosmetic whose oily component as a powder cosmetic contains only the above-mentioned oil. Regarding the following component (d) higher alcohol, regarding usability, even in the case of using only a higher alcohol as an oily component without using the above-mentioned oil and polyol, compared with the case of using only oil, for example, a lighter feeling of use when spreading on the skin can also be exhibited. Therefore, in the case of a powder cosmetic where such performance is sufficient, as an embodiment different from the above embodiment, the powder cosmetic of the present disclosure may also use a polyol as an optional component. In this embodiment, the composition of Comparative Example 2 in Table 1 described later can be treated as an example.

[0087] The blending amount of the polyol in the powder cosmetic of the present invention is 0% by mass or more and 19% by mass or less with respect to the total amount of the cosmetic in the case where the polyol is an optional component, and more than 0% by mass and 19% by mass or less in the case where the polyol is an essential component. From the viewpoints of impact resistance, usability, and fit, the blending amount is preferably 0.1% by mass or more, 0.5% by mass or more, 1.0% by mass or more, 1.5% by mass or more, 2.0% by mass or more, 2.5% by mass or more, or 3.0% by mass or more, less than 19% by mass, 17% by mass or less, 15% by mass or less, 13% by mass or less, 10% by mass or less, less than 10% by mass, 9.0% by mass or less, 8.5% by mass or less, 8.0% by mass or less, 7.5% by mass or less, 7.0% by mass or less, 6.5% by mass or less, or 6.0% by mass or less. In addition, the present inventors have also unexpectedly found that if it is the composition of the powder cosmetic of the present disclosure, a polyol can be blended at a higher concentration compared with conventional powder cosmetics. In the powder cosmetic of the present disclosure, 6.0% by mass or more, 8.0% by mass or more, 10% by mass or more, or 12% by mass or more of the polyol can be blended with respect to the total amount of the cosmetic.

[0088] As polyols, for example, dihydric alcohols (e.g., ethylene glycol, 1,2-propanediol (1,2-propane diol), 1,3-propanediol, trimethylene glycol, butanediol (e.g., 1,2-butanediol, 1,3-butanediol, 2,3-butanediol), tetramethylene glycol, pentamethylene glycol, 2-butene-1,4-diol, hexanediol, octanediol); trihydric alcohols (e.g., trimethylolpropane); tetrahydric alcohols (e.g., pentaerythritol such as 1,2,6-hexanetriol); pentahydric alcohols (e.g., xylitol); and hexahydric alcohols (e.g., sorbitol, mannitol) can be mentioned. In addition, for example, diethylene glycol, dipropylene glycol, triethylene glycol, polypropylene glycol, tetraethylene glycol, diglycerol, polyethylene glycol, triglycerol, tetraglycerol, and polyglycerol can be used, and they can also be referred to as polyol polymers. Among them, from the viewpoints of impact resistance, usability, and fitting feeling, at least one selected from dipropylene glycol, butanediol, 1,2-propanediol, and 1,3-propanediol is preferred, more preferably dipropylene glycol, butanediol, and 1,2-propanediol, particularly preferably dipropylene glycol and butanediol, and most preferably dipropylene glycol. The polyol can be used alone or in combination of two or more. It should be noted that the polyol in the present disclosure does not include glycerol, diglycerol, and 1,2-hexanediol.

[0089] 〈(d) Higher alcohol〉

[0090] The powder cosmetic of the present disclosure contains a higher alcohol. The higher alcohol can be used alone or in combination of two or more. The higher alcohol is a component that may affect impact resistance, usability, and fitting feeling, and particularly affects usability and fitting feeling. The powder cosmetic of the present disclosure in one embodiment can further improve such a light usability by using the above polyol and higher alcohol in combination.

[0091] The blending amount of the higher alcohol in the powder cosmetic of the present disclosure is 0.1% by mass or more and 10% by mass or less based on the total amount of the cosmetic. From the viewpoints of impact resistance, usability, and fitting feeling, the blending amount is preferably in the range of 0.3% by mass or more, 0.5% by mass or more, 0.7% by mass or more, or 1.0% by mass or more, less than 10% by mass, 9.0% by mass or less, 8.5% by mass or less, 8.0% by mass or less, 7.5% by mass or less, 7.0% by mass or less, 6.5% by mass or less, or 6.0% by mass or less.

[0092] As the higher alcohol, for example, stearyl alcohol, isostearyl alcohol, oleyl alcohol, octyldodecanol, batyl alcohol, cholesterol, sitosterol, cetyl alcohol (hexadecanol), cetearyl alcohol, selachyl alcohol, decyltetradecanol, batyl alcohol, phytosterol, hexyl decanol, behenyl alcohol, lauryl alcohol, lanolin alcohol, and hydrogenated lanolin alcohol can be cited. Among them, from the viewpoints of impact resistance, usability, and fitting feeling, at least one selected from stearyl alcohol, isostearyl alcohol, batyl alcohol, cetyl alcohol, and behenyl alcohol is preferred, and more preferably cetyl alcohol.

[0093] <Total content of component (b) to component (d)>

[0094] The powder cosmetic of the present disclosure may contain the above-mentioned (b) oil component, (c) polyol, and (d) higher alcohol in a total content range of 5.0% by mass or more and 20% by mass or less. If the total content of components (b) to (d) is within such a range, the impact resistance of the cosmetic can be further improved. Therefore, for example, it is possible to appropriately reduce or suppress defects such as cracking of the cosmetic when the powder case filled with the powder cosmetic is dropped.

[0095] From the viewpoint of impact resistance, the total content is preferably more than 5.0% by mass, 6.0% by mass or more, 7.0% by mass or more, 8.0% by mass or more, 9.0% by mass or more, or 10.0% by mass or more, and less than 20% by mass, 19% by mass or less, 18% by mass or less, 17% by mass or less, 16% by mass or less, 15% by mass or less, 14% by mass or less, 13% by mass or less, 12% by mass or less, 11% by mass or less, or 10% by mass or less.

[0096] <Ratio of the amount obtained by adding the contents of component (c) and (d) to the total content of components (b) to (d)>

[0097] The powder cosmetic of the present disclosure may contain the above-mentioned (c) polyol and (d) higher alcohol in a ratio of the amount obtained by adding the contents of component (c) and (d) to the total content of components (b) to (d) in the range of 0.10 or more and 1.0 or less. If components (c) and (d) are contained in the cosmetic in such a ratio, the usability and fitting feeling can be further improved.

[0098] From the viewpoints of usability and fitting feeling, the ratio is preferably more than 0.10, 0.15 or more, 0.20 or more, 0.25 or more, 0.30 or more, 0.35 or more, 0.40 or more, 0.45 or more, or 0.50 or more, and less than 1.0, 0.90 or less, 0.85 or less, 0.80 or less, 0.75 or less, 0.70 or less, 0.65 or less, or 0.60 or less.

[0099] <Optional components>

[0100] The powder cosmetics of the present disclosure can appropriately incorporate various components within the range that does not affect the effects of the present disclosure. As such optional components, for example, other components other than the above-mentioned components used in cosmetics and pharmaceuticals can be cited. As examples thereof, specifically, surfactants (e.g., anionic surfactants, cationic surfactants, amphoteric surfactants, nonionic surfactants), humectants, water-soluble polymers, thickeners, film-forming agents, ultraviolet absorbers other than the above, anti-fading agents, metal ion chelating agents, lower alcohols, sugars, amino acids, organic amines, polymer emulsions, pH regulators, skin nutrients, vitamins, preservatives, antioxidants, antioxidant aids, excipients, fragrances, colorants (e.g., pigments and dyes other than the above, and dyes), and water can be cited. The optional components can be used alone or in combination of two or more.

[0101] In some embodiments, the powder cosmetics of the present disclosure may also contain phospholipids as optional components. However, from the viewpoints of impact resistance, usability, and fitting feeling, the blending amount of phospholipids is preferably less than 1.0% by mass, 0.1% by mass or less, less than 0.1% by mass, 0.05% by mass or less, or 0.01% by mass or less relative to the total amount of the cosmetics, and more preferably phospholipids are not blended in the cosmetics.

[0102] "Uses of Powder Cosmetics"

[0103] As for the uses of the powder cosmetics of the present disclosure, there are no particular limitations. For example, powdery cosmetics such as loose powder and solid powder cosmetics such as powder compacts can be cited. Specifically, for example, foundation, eyeshadow, blush, body powder, face powder, baby powder, deodorant powder, and white face powder can be listed. The powder cosmetics of the present disclosure can exhibit the performance of reducing or suppressing adverse conditions such as breakage of cosmetics caused by impacts such as dropping, and thus can be suitably used as solid powder cosmetics. The usability and fitting property of the powder cosmetics of the present disclosure are also excellent, and thus it can be suitably used as foundation.

[0104] "Manufacturing Method of Powder Cosmetics"

[0105] As for the manufacturing method of the powder cosmetics of the present disclosure, there are no particular limitations, and known methods can be adopted. As such a manufacturing method, for example, dry molding methods and wet molding methods can be cited. It should be noted that in the manufacturing method of powder cosmetics, the above-mentioned various components can be used in the same manner. Hereinafter, as an example, the manufacturing method of powder cosmetics using a dry molding method will be described.

[0106] In the method for manufacturing a powder cosmetic of the present disclosure in one embodiment, the following mixture is filled into a container and dry molding is performed. The mixture contains (a) powder, (b) an oil component in an amount of 0% by mass or more and 15% by mass or less, (c) a polyol in an amount exceeding 0% by mass and 19% by mass or less, and (d) a higher alcohol in an amount of 0.1% by mass or more and 10% by mass or less. The total content of (b) the oil component, (c) the polyol, and (d) the higher alcohol is 5.0% by mass or more and 20% by mass or less, and the ratio of the amount obtained by adding the content of (c) the polyol and (d) the higher alcohol to the total content is 0.10 or more and 1.0 or less. In another embodiment, the polyol in the manufacturing method can be an optional component.

[0107] As the means for dry molding, there is no particular limitation, and known means can be adopted. For example, the powder component ((a) powder), the oily component ((b) oil component, (c) polyol, and (d) higher alcohol), and optional components are pre-mixed using a mixing device (e.g., Henschel mixer), and then pulverized or crushed one or more times using a pulverizing device or a crushing device (e.g., Pulverizer). The obtained mixture is filled into a container (e.g., an intermediate tray container), and dry compression molding is performed under known methods and conditions to obtain a powder cosmetic.

[0108] Examples

[0109] The present invention will be described in more detail with reference to the following examples, but the present invention is not limited to these examples. Hereinafter, unless otherwise specified, the blending amounts are expressed in mass %. In addition, the various evaluation methods described in the examples are not limited to the cosmetics described in the examples, and can be similarly implemented for cosmetics containing the above-mentioned respective components.

[0110] 《Examples 1 to 8 and Comparative Examples 1 to 8》

[0111] For the powder cosmetics obtained by the formulations shown in Table 1 and the manufacturing method described below, the following evaluations were performed, and the results are shown in Table 1. Here, the powder cosmetics correspond to a cake-type foundation as a solid powder cosmetic. In addition, the "ratio of higher alcohol and polyol" in Table 1 and Table 2 below refers to the ratio of the amount obtained by adding the content of the polyol and the higher alcohol to the total content of the oily components ("total amount of oily components" in Table 1 and Table 2).

[0112] 〈Evaluation Method〉

[0113] (Usability Test)

[0114] The sensory evaluation of usability was conducted by 20 professional reviewers. As an evaluation method, a puff was used to pick up the cosmetics, and a questionnaire survey was conducted on the usability when applying it to the face, that is, whether the cosmetics were applied lightly, and the evaluation was carried out according to the following criteria:

[0115] S: Among 20 people, 19 - 20 people answered that the cosmetics were applied lightly.

[0116] A: Among 20 people, 17 - 18 people answered that the cosmetics were applied lightly.

[0117] B: Among 20 people, 13 - 16 people answered that the cosmetics were applied lightly.

[0118] C: Among 20 people, 8 - 12 people answered that the cosmetics were applied lightly.

[0119] D: Among 20 people, 4 - 7 people answered that the cosmetics were applied lightly.

[0120] E: Among 20 people, 0 - 3 people answered that the cosmetics were applied lightly.

[0121] (Fitting feeling test)

[0122] The sensory evaluation of the fitting feeling was conducted by 20 professional reviewers. As an evaluation method, a puff was used to pick up the cosmetics, and a questionnaire survey was conducted on the fitting feeling when applying it to the face, that is, whether it was felt that the cosmetics were in close contact with the skin, and the evaluation was carried out according to the following criteria:

[0123] S: Among 20 people, 19 - 20 people answered that the cosmetics were in close contact with the skin.

[0124] A: Among 20 people, 17 - 18 people answered that the cosmetics were in close contact with the skin.

[0125] B: Among 20 people, 13 - 16 people answered that the cosmetics were in close contact with the skin.

[0126] C: Among 20 people, 8 - 12 people answered that the cosmetics were in close contact with the skin.

[0127] D: Among 20 people, 4 - 7 people answered that the cosmetics were in close contact with the skin.

[0128] E: Among 20 people, 0 - 3 people answered that the cosmetics were in close contact with the skin.

[0129] (Impact resistance test)

[0130] Prepare 5 test samples of powder cosmetics and let them fall from a height of 30 cm onto a concrete floor. For the test samples after falling, measure the number of falls until appearance defects such as breakage, cracks, crazing, or peeling occur. In Table 1, the minimum number of falls when appearance defects occurred among the 5 test samples is recorded in parentheses. In addition, the case where this number is less than 10 times is recorded as "defective", and the case where it is 10 times or more is recorded as "good".

[0131] 〈Manufacturing method of powder cosmetics〉

[0132] (Comparative Example 1)

[0133] While heating the powder component and the oily component recorded in Table 1 in the blending amounts recorded in Table 1, mix them with a Henschel mixer and then crush them 2 times with a pulverizer (Pulverizerパルペライザー). Fill the obtained mixture into a resin intermediate tray container that is approximately square (about 3 cm × about 4 cm) and has a depth of about 5 mm, and perform dry pressing molding at a pressing pressure of about 2.0 mPa for about 1 second to obtain the powder cosmetics of Comparative Example 1.

[0134] (Examples 1 to 4 and Comparative Examples 2 to 5)

[0135] Except for changing to the powder component, oily component, and blending amounts recorded in Table 1, operate in the same manner as in Comparative Example 1 to obtain the powder cosmetics of Examples 1 to 4 and Comparative Examples 2 to 5, respectively.

[0136] Table 1

[0137]

[0138] *KSP-300 (Shin-Etsu Chemical Co., Ltd.)

[0139] 〈Results〉

[0140] From the results of Comparative Example 1, Comparative Example 2, and Comparative Example 5, it can be seen that compared with the case where all of the oily component is oil, even if only a part of it is changed to a higher alcohol, the usability and the fitting feeling can be improved to some extent. However, from the result of Example 1, it was confirmed that when a polyol is also used in addition to the higher alcohol as the oily component, the usability and the fitting feeling are further improved.

[0141] In addition, from the results of Examples 1 to 4, it was confirmed that as the blending amount of the polyol increases, the usability and the fitting feeling are further improved. In addition, from the result of Example 4, it was confirmed that if it is the composition of the present disclosure, the polyol can be blended at a high concentration.

[0142] 《Examples 5 to 8 and Comparative Examples 6 to 8》

[0143] Each of the powder cosmetics with the formulations shown in Table 2, in which the type of polyol was changed, was evaluated as described above, and the results are shown in Table 2. The powder cosmetics in Table 2 also correspond to a cake-type foundation as a solid powder cosmetic. In addition, except for changing to the powder components, oily components, and blending amounts described in Table 2, the powder cosmetics of Examples 5 to 8 and Comparative Examples 6 to 8 were obtained in the same manner as in Comparative Example 1 described above. It should be noted that in Table 2, for convenience, glycerin, diglycerin, and 1,2-hexanediol are also labeled as polyols, but the polyols in the present disclosure do not include glycerin, diglycerin, and 1,2-hexanediol.

[0144]

[0145] 〈Results〉

[0146] From the results in Table 2, it was confirmed that even when polyols (butanediol, 1,2-propanediol, 1,3-propanediol) equivalent to the polyols of the present disclosure other than dipropylene glycol used in Examples 1 to 4 above were used, usability, adhesion, and impact resistance were improved. In addition, from the results of Examples 5 to 8, it was found that dipropylene glycol, butanediol, and 1,2-propanediol are more preferable polyols.

[0147] It should be noted that the cosmetics of Examples 5 and 6 showed further improved spreadability when applied to the skin compared to the cosmetics of Example 7. Therefore, it can be seen that dipropylene glycol and butanediol are particularly preferable polyols when also considering the spreadability of the cosmetics.

Claims

1. A powder cosmetic comprising (a) a powder, (b) an oil in an amount of 0% by mass or more and 15% by mass or less, (c) a polyol in an amount of more than 0% by mass and 19% by mass or less, and (d) a higher alcohol in an amount of 0.1% by mass or more and 10% by mass or less. The total content of the (b) oil, the (c) polyol and the (d) higher alcohol is 5.0% by mass or more and 20% by mass or less, and the ratio of the amount obtained by adding the contents of the (c) polyol and the (d) higher alcohol to the total content is 0.10 or more and 1.0 or less.

2. The cosmetic according to claim 1, wherein, The (c) polyol is contained in an amount of 0.1% by mass or more and 19% by mass or less.

3. The cosmetic according to claim 1 or 2, wherein The (b) oil is a polar oil.

4. The cosmetic according to claim 1 or 2, wherein, The (c) polyol is at least one selected from dipropylene glycol, butanediol, 1,2 - propanediol and 1,3 - propanediol.

5. The cosmetic according to claim 1 or 2, wherein The (d) higher alcohol is at least one selected from stearyl alcohol, isostearyl alcohol, batyl alcohol, cetyl alcohol and behenyl alcohol.

6. The cosmetic according to claim 1 or 2, which is a solid powder cosmetic.

7. The cosmetic according to claim 1 or 2, which is used as a foundation.

8. A method for manufacturing a powder cosmetic, wherein, A mixture containing (a) a powder, (b) an oil in an amount of 0% by mass or more and 15% by mass or less, (c) a polyol in an amount of more than 0% by mass and 19% by mass or less, and (d) a higher alcohol in an amount of 0.1% by mass or more and 10% by mass or less is filled into a container and dry - formed, and the total content of the (b) oil, the (c) polyol and the (d) higher alcohol is 5.0% by mass or more and 20% by mass or less, and the ratio of the amount obtained by adding the contents of the (c) polyol and the (d) higher alcohol to the total content is 0.10 or more and 1.0 or less.

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