Cosmetic composition

Abstract

The present application provides a cosmetic composition in which dispersibility of surface-treated pigment particles is improved and in which the effect of preventing secondary adhesion is also improved. A cosmetic composition comprising: pigment particles that have been surface-treated with an ester compound of a fatty acid having 8 to 20 carbon atoms and glycerin; an oil component comprising at least one of a hydrocarbon oil and a polar oil; and at least one of a dispersant having an HLB value of 4.5 or less and an amodimethicone dispersant.

Description

Technical Field

[0001] This invention relates to cosmetic compositions. Background Technology

[0002] As cosmetics containing pigment particles, they are known to include color cosmetics such as primers, foundations, powders, blushes, eyeshadows, lipsticks, eyeliners, or eyebrow pencils, as well as skin-protecting cosmetics such as whitening cosmetics or UV-protective cosmetics.

[0003] Such cosmetics often contain a mixture of pigment particles and oils. However, untreated pigment particles, especially those containing metallic elements, can sometimes degrade other components of the cosmetic. Therefore, surface-treated pigment particles are often used.

[0004] For example, Patent Document 1 discloses a cosmetic powder material comprising a cosmetic powder surface-treated with an ester compound of fatty acids having 8 to 20 carbon atoms and glycerol.

[0005] Furthermore, Patent Document 2 discloses a cosmetic powder that has been surface-treated with an ester compound of isostearic acid and diglycerides.

[0006] Existing technical documents

[0007] Patent documents

[0008] Patent Document 1: International Publication No. 2022 / 030462

[0009] Patent Document 2: Japanese Patent Application Publication No. 2023-007281 Summary of the Invention

[0010] The problem that the invention aims to solve

[0011] When surface-treated pigment particles are dispersed in oils, such as when blended into cosmetics like foundation, poor dispersibility can easily lead to uneven color due to the surface-treated pigment particles. Therefore, excellent dispersibility of surface-treated pigment particles in oils is required.

[0012] On the other hand, we should also consider the problem of pigment particles in foundations and other cosmetics being re-adhered from the skin to masks, clothing, etc. (the so-called "secondary adhesion problem") when they are applied to the skin.

[0013] Therefore, it is necessary to have both the ability to disperse surface-treated pigment particles in oil and the ability to prevent secondary adhesion.

[0014] The present invention aims to improve the above situation and its object is to provide a cosmetic composition that is a cosmetic composition in which pigment particles are mixed in an oil, which improves both the dispersibility of the pigment particles and the effect of no secondary adhesion.

[0015] Methods for solving problems

[0016] The present invention, which achieves the above objectives, is described below.

[0017] <Option 1>

[0018] A cosmetic composition comprising the following ingredients: (A) Pigment particles that have been surface-treated with ester compounds of fatty acids with 8 to 20 carbon atoms and glycerol; (B) An oil fraction containing at least one of hydrocarbon oils and polar oils; and (C) At least one of the following: a dispersant with an HLB value of 4.5 or less and an ammonia-terminated polydimethylsiloxane dispersant.

[0019] Option 2

[0020] According to the cosmetic composition of Scheme 1, the ester compound is selected from at least one of tetraisostearate diglyceride, triisostearate diglyceride, tri(caprylic / capric) glyceride, dilaurate glyceride, triisostearate glyceride, monoisostearate decaglyceride, and diisostearate decaglyceride.

[0021] Option 3

[0022] According to the cosmetic composition of Scheme 1 or 2, the dispersant with an HLB value of 4.5 or less comprises at least one selected from isostearic acid, polyhydroxystearic acid, polyricinoleic acid polyglycerol-6, bis-butyl polydimethylsiloxane polyglycerol-3, PEG-10 polydimethylsiloxane, and cetyl PEG / PPG-10 / 1 polydimethylsiloxane.

[0023] Option 4

[0024] According to any one of Schemes 1 to 3, the pigment particles in the cosmetic composition comprise at least one selected from titanium dioxide, iron oxide yellow, iron oxide red, iron oxide black, talc, zinc oxide, silicon dioxide, pearl mica, mica, and sericite.

[0025] Option 5

[0026] According to any one of Schemes 1 to 4, the oil component of the cosmetic composition comprises the volatile hydrocarbon oil.

[0027] <Option 6>

[0028] According to any one of Schemes 1 to 5, the cosmetic composition wherein, relative to a total of 100 parts by weight of the surface-treated pigment particles, the oil, and the dispersant, the surface-treated pigment particles are 5.0 to 50 parts by weight.

[0029] <Option 7>

[0030] According to any one of Schemes 1 to 6, the cosmetic composition comprises 40 to 90 parts by weight of the oil relative to a total of 100 parts by weight of the above-mentioned components (A), (B), and (C).

[0031] <Option 8>

[0032] According to any one of Schemes 1 to 7, in the cosmetic composition, the dispersant is 0.5 to 30 parts by mass relative to a total of 100 parts by mass of the above-mentioned components (A), (B), and (C).

[0033] <Option 9>

[0034] According to any one of Schemes 1 to 8, in the cosmetic composition, the component (C) is 5.0 parts by mass or more relative to 100 parts by mass of component (A).

[0035] <Option 10>

[0036] An oily cosmetic comprising the cosmetic composition described in any one of claims 1 to 9.

[0037] <Option 11>

[0038] An oil-in-water emulsified cosmetic, comprising any one of the cosmetic compositions described in Schemes 1 to 9.

[0039] <Option 12>

[0040] An oil-in-water emulsified cosmetic, comprising any one of the cosmetic compositions described in Schemes 1 to 9.

[0041] The effects of the invention

[0042] According to the present invention, a cosmetic composition is provided which is a cosmetic composition in which pigment particles are mixed in an oil, thereby improving the dispersibility of the pigment particles and improving the effect of no secondary adhesion. Detailed Implementation

[0043] The embodiments of the present invention will now be described in detail. It should be noted that the present invention is not limited to the following embodiments, and various modifications can be made within the scope of the original intent of the invention.

[0044] Cosmetic Compositions

[0045] The cosmetic composition of the present invention (hereinafter also referred to as "the composition of the present invention") is a cosmetic composition comprising the following components: (A) Pigment particles that have been surface-treated with an ester compound of fatty acids with 8 to 20 carbon atoms and glycerol (hereinafter referred to as "the ester compound of the present invention"); (B) An oil fraction containing at least one of hydrocarbon oils and polar oils; and (C) At least one of the following: a dispersant with an HLB value of 4.5 or less and an ammonia-terminated polydimethylsiloxane dispersant.

[0046] The composition of the present invention can have both the effect of dispersing pigment particles in oil and preventing secondary adhesion.

[0047] It should be noted that, in this invention, the term "no secondary adhesion effect" refers to the opposite of the aforementioned "secondary adhesion problem," meaning that even when skin using cosmetics containing pigment particles comes into contact with masks or clothing, the pigment particles are unlikely to adhere to the masks or clothing, or preferably, they do not adhere at all. Furthermore, the effect of no secondary adhesion can be evaluated, for example, by the method shown in the embodiments described later.

[0048] The inventors have discovered that, in cosmetic compositions containing surface-treated pigment particles, when adjusting the composition to improve the effect of preventing secondary adhesion, there is a tendency for the dispersibility of the surface-treated pigment particles in the oil to become relatively poor. In other words, it is not easy to achieve both good dispersibility of the pigment particles in the oil and the effect of preventing secondary adhesion in a cosmetic composition containing pigment particles.

[0049] Therefore, through further in-depth research by the inventors, it has been found that rather than unreasonably increasing the dispersibility of pigment particles in the oil, a sufficiently good dispersibility can ensure the effect of no secondary adhesion. More specifically, in the composition of the present invention, by mixing a specific dispersant with pigment particles that have been surface-treated with the ester compound involved in the present invention in a specific oil, it is possible to achieve both the effect of dispersibility in the oil and the effect of no secondary adhesion of the pigment particles.

[0050] Here, "quite good dispersibility" refers to the degree to which uneven color distribution does not occur when a composition containing pigment particles surface-treated with the ester compound involved in this invention is blended into a cosmetic such as a foundation. Furthermore, "quite good dispersibility" can be judged comprehensively by considering both the dispersibility immediately after preparation and the dispersibility over time. More specifically, in evaluating dispersibility, if the dispersibility is good both immediately after preparation and over time, it can be judged as "quite good dispersibility." Conversely, if, for example, the dispersibility is good immediately after preparation but poor over time, it is not evaluated as "quite good dispersibility."

[0051] However, through in-depth research by the inventors, it has been found that while the correspondence between such "fairly good dispersibility" and the effect of no secondary adhesion can be applied to pigment particles that have been surface-treated with the ester compound involved in this invention, it cannot be applied to pigment particles that have been surface-treated with other surface-treatment agents (e.g., Comparative Examples 4 to 6).

[0052] It should be noted that in Patent Documents 1 and 2, it was found that surface-treated pigment particles are surface-treated with the ester compound involved in this invention to improve the dispersibility of the surface-treated pigment particles in oil. However, there was no intention to improve the effect of preventing secondary adhesion in cosmetic compositions such as foundation containing pigment particles. Of course, Patent Documents 1 and 2 did not aim to achieve both the dispersibility of pigment particles in oil and the effect of preventing secondary adhesion.

[0053] <Constituents>

[0054] [Ingredients (A)]

[0055] The composition of the present invention comprises pigment particles surface-treated with the ester compound involved in the present invention (component (A)), an oil component comprising at least one of hydrocarbon oil and polar oil (component (B)), and at least one of a dispersant having an HLB value of 4.5 or less and an amino-terminated polydimethylsiloxane dispersant (component (C)). These constituent components are described in detail below.

[0056] [Ingredients (A)]

[0057] (Pigment particles that have undergone surface treatment)

[0058] In this invention, the surface-treated pigment particles are surface-treated with the ester compound involved in this invention.

[0059] In the compositions of the present invention, the content of surface-treated pigment particles is not particularly limited. For example, relative to a total of 100 parts by weight of the surface-treated pigment particles (component (A)), the oil comprising at least one of hydrocarbon oil and polar oil (component (B)), and the dispersant with an HLB value of 4.5 or less and the amino-terminated polydimethylsiloxane dispersant (component (C)), the surface-treated pigment particles may be 5.0 parts by weight or more, 6.0 parts by weight or more, 7.0 parts by weight or more, 8.0 parts by weight or more, 9.0 parts by weight or more, 10 parts by weight or more, 11 parts by weight or more, 12 parts by weight or more, 13 parts by weight or more, 14 parts by weight or more, 15 parts by weight or more, 16 parts by weight or more, or 17 parts by weight. The quantities can be 18 or more parts by weight, 19 or more parts by weight, 20 or more parts by weight, 21 or more parts by weight, 22 or more parts by weight, 22 or more parts by weight, 23 or more parts by weight, 24 or more parts by weight, 25 or more parts by weight, 26 or more parts by weight, 27 or more parts by weight, 28 or more parts by weight, 29 or more parts by weight, or 30 or more parts by weight. Alternatively, the quantities can be less than 50 parts by weight, less than 45 parts by weight, less than 40 parts by weight, less than 39 parts by weight, less than 38 parts by weight, less than 37 parts by weight, less than 36 parts by weight, less than 35 parts by weight, less than 34 parts by weight, less than 33 parts by weight, less than 32 parts by weight, less than 31 parts by weight, or less than 30 parts by weight.

[0060] The ester compound involved in this invention is not particularly limited, but it is preferred to use a substance that does not color the pigment particles that are the object to be surface treated or a substance that does not easily color the pigment particles that are the object to be surface treated.

[0061] Here, the fatty acid with 8 to 20 carbon atoms in the ester compound of the present invention can specifically be, for example, fatty acids with 8 or more, 10 or more, 12 or more, 14 or more, 16 or more, or 18 or more carbon atoms. Furthermore, fatty acids with 20 or fewer, 19 or fewer, or 18 or fewer carbon atoms can also be used. Among these, fatty acids with 8 or more and 18 or fewer carbon atoms are preferred, and fatty acids with 12 or more and 18 or fewer carbon atoms are even more preferred. Moreover, such fatty acids can be branched or linear.

[0062] Furthermore, the glycerol used as the ester compound involved in this invention can be unpolymerized (i.e., monomeric) monoglyceride or polymerized (i.e., polymeric) polyglycerol. When using polyglycerol, its degree of polymerization is not particularly limited, but is preferably 2 or more and 10 or less. As glycerol, monoglyceride as a monomer, diglyceride with a degree of polymerization of 2, or decaglycerol with a degree of polymerization of 10 are preferred.

[0063] The ester compounds involved in this invention may comprise, for example, at least one selected from tetraisostearate, triisostearate, diisostearate, monoisostearate, tri(caprylic / capric)glycerides, triethylhexanoate, dilaurate, triisostearate, decaglycerol monoisostearate, and diisostearate. Among these, from the viewpoint of improving the oleophilicity of the surface-treated pigment particles and from the viewpoint of using naturally derived raw materials, tetraisostearate, triisostearate, dilaurate, triisostearate, decaglycerol monoisostearate, and diisostearate are preferred as the ester compounds involved in this invention.

[0064] As for the surface treatment method of pigment particles using the ester compound of the present invention, there is no particular limitation, and reference may be made, for example, to the "method for manufacturing powder material for cosmetics" disclosed in Patent Document 1.

[0065] In this invention, pigment particles supplied for surface treatment can be used regardless of their shape (spherical, rod-shaped, needle-shaped, plate-shaped, irregular shape, flake-shaped, spindle-shaped, etc.), particle size (smoky, microparticle, pigment grade, etc.), or particle structure (porous, non-porous, etc.). Examples include inorganic pigment powders (containing natural mineral pigments or synthetic inorganic pigments, etc.), organic pigments, and organic pigment particles, but are not limited to these.

[0066] More specifically, examples of inorganic pigments include, but are not limited to, titanium dioxide, iron oxide yellow, iron oxide red, iron oxide black, talc, zinc oxide, silicon dioxide, pearl mica, mica, carbon black, iron oxide, cerium oxide, manganese violet, cobalt violet, chromium oxide green, chromium hydroxide green, cobalt titanate, ultramarine, navy blue, magnesium oxide, zirconium dioxide, kaolin, sericite, muscovite, phlogopite, synthetic mica, ruby, biotite, vermiculite, silicon dioxide, calcium carbonate, magnesium carbonate, magnesium silicate, aluminum silicate, barium silicate, calcium silicate, barium sulfate, calcium sulfate, calcium phosphate, hydroxyapatite, boron nitride, pearlescent pigments, and bismuth oxychloride.

[0067] Examples of organic pigments include, but are not limited to, 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 No. 404, Green No. 3, Green No. 201, Green No. 204, and Green No. 205.

[0068] Examples of organic pigment powders include, but are not limited to, tar pigments, nylon powders, cellulose powders, polyethylene powders, polymethyl methacrylate powders, polystyrene powders, acrylic powders, and organosilicon powders.

[0069] Furthermore, these pigment particles can be used alone or in combination.

[0070] In this invention, from the viewpoint of use in color cosmetics such as foundation, eyeshadow, eyebrow pencil and blush, the pigment particles in the above examples may include at least one selected from titanium dioxide, iron oxide yellow, iron oxide red, iron oxide black, talc, zinc oxide, silicon dioxide, pearl mica, mica and sericite.

[0071] [Ingredient (B)]

[0072] (oil content)

[0073] In the compositions of the present invention, the oil fraction comprises at least one of hydrocarbon oil and polar oil. Through in-depth research by the inventors, it has been found that pigment particles surface-treated with the ester compound involved in the present invention exhibit fairly good dispersibility in the presence of the specific dispersant described later in the oil fraction comprising at least one of hydrocarbon oil and polar oil.

[0074] In the compositions of the present invention, the oil content is not particularly limited. For example, relative to a total of 100 parts by weight of the surface-treated pigment particles (component (A)), the oil comprising at least one of hydrocarbon oil and polar oil (component (B)), and the dispersant with an HLB value of 4.5 or less and the amino-terminated polydimethylsiloxane dispersant (component (C)), the oil content can be 40 parts by weight or more, 42 parts by weight or more, 44 parts by weight or more, 46 parts by weight or more, 48 parts by weight or more, 50 parts by weight or more, 52 parts by weight or more, 54 parts by weight or more, 56 parts by weight or more, or 58 parts by weight. The quantities can be 60 or more parts by weight, 62 or more parts by weight, 64 or more parts by weight, 66 or more parts by weight, 68 or more parts by weight, 70 or more parts by weight, 72 or more parts by weight, 74 or more parts by weight, 76 or more parts by weight, 78 or more parts by weight, 80 or more parts by weight, 82 or more parts by weight, 85 or more parts by weight, 86 or more parts by weight, or 88 or more parts by weight. Alternatively, the quantities can be 90 or less parts by weight, 85 or less parts by weight, 75 or less parts by weight, 70 or less parts by weight, 65 or less parts by weight, or 60 or less parts by weight.

[0075] Furthermore, from the viewpoint of dispersing pigment particles that have been surface-treated by the ester compound involved in this invention in an oil fraction, the oil fraction can be, for example, 150 parts by mass or more, 200 parts by mass or more, 250 parts by mass or more, 300 parts by mass or more, 350 parts by mass or more, 400 parts by mass or more, 450 parts by mass or more, 500 parts by mass or more, 550 parts by mass or more, 600 parts by mass or more, 650 parts by mass or more, 700 parts by mass or more, 750 parts by mass or more, 800 parts by mass or more, 850 parts by mass or more, 900 parts by mass or more, 950 parts by mass or more, or 1000 parts by mass or more. Alternatively, it can be 2000 parts by mass or less, 1800 parts by mass or less, 1500 parts by mass or less, 1200 parts by mass or less, 1000 parts by mass or less, 800 parts by mass or less, or 500 parts by mass or less.

[0076] In this invention, the hydrocarbon oil is not particularly limited; volatile hydrocarbon oils, non-volatile hydrocarbon oils, or mixtures thereof can be used. From the viewpoint of further improving the dispersibility of the surface-treated pigment particles, the hydrocarbon oil is preferably a volatile hydrocarbon oil. That is, the oil component preferably comprises a volatile hydrocarbon oil.

[0077] It should be noted that, in this invention, the term "volatility" of oil refers to oil with a boiling point below 260°C at atmospheric pressure (1 atmosphere). Conversely, in this invention, the term "non-volatility" of oil refers to oil with a boiling point above 260°C at atmospheric pressure (1 atmosphere).

[0078] In this invention, examples of volatile hydrocarbon oils include, but are not limited to, decane, dodecane, isododecane, isohexadecane, undecane, tridecane, alkanes with 9 to 12 carbon atoms, and mixtures of two or more thereof.

[0079] In addition, examples of non-volatile hydrocarbon oils include, but are not limited to, hydrogenated polydecene, squalane, hydrogenated polybutene, non-volatile hydrogenated polyisobutylene, mineral oil, and mixtures of two or more thereof.

[0080] In the composition of the present invention, when the oil component includes hydrocarbon oil, the content of hydrocarbon oil is not particularly limited. For example, relative to the total oil component, it can be more than 0% by mass, more than 5.0% by mass, more than 10% by mass, more than 20% by mass, more than 30% by mass, more than 40% by mass, more than 50% by mass, or more than 55% by mass. In addition, it can be less than 100% by mass, less than 95% by mass, less than 90% by mass, less than 85% by mass, less than 80% by mass, less than 75% by mass, less than 70% by mass, less than 65% by mass, less than 60% by mass, less than 55% by mass, or less than 50% by mass.

[0081] In this invention, "polar oil" refers to a highly polar oil, excluding silicone oil, that can be used in cosmetics. For example, it refers to a substance with an IOB value of 0.10 or higher, 0.11 or higher, 0.12 or higher, or 0.13 or higher. Furthermore, the polar oil involved in this invention may have an IOB value of 0.50 or lower, 0.45 or lower, or 0.40 or lower. It should be noted that the IOB value is an abbreviation for Inorganic / Organic Balance, a value representing the ratio of inorganic to organic content, and serves as an indicator of the degree of polarity of an organic compound. Specifically, the IOB value is expressed as IOB value = inorganic value / organic value. Regarding the "inorganic value" and "organic value" respectively, for example, by setting the "inorganic value" and "organic value" corresponding to various atoms or functional groups in a way that sets the "organic value" of 20 for one carbon atom in the molecule and the "inorganic value" of 100 for one hydroxyl group, the "inorganic value" and "organic value" of all atoms and functional groups in the organic compound are accumulated, and the IOB value of the organic compound can be calculated (see, for example, Yoshio Koda, "Organic Concept Map - Basics and Applications -", ​​pp. 11-17, Sankyo Publishing, 1984).

[0082] In the compositions of the present invention, volatile polar oils, non-volatile polar oils, or mixtures thereof can be used as polar oils.

[0083] In this invention, the polar oil may contain, for example, ester oil, ultraviolet absorber, or mixtures thereof, but from the viewpoint of obtaining a non-sticky feel, the polar oil preferably does not contain ultraviolet absorber.

[0084] In this invention, specific examples of ester oils that can be used as polar oils include isodecyl neopentanoate, tripropylene glycol dipentanoate, isononyl isononanoate, isopropyl myristate, cetyl octanoate, octyldodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyl decyl dimethyl octanoate, cetyl lactate, myristyl lactate, acetylated lanolin, and isocetyl stearate. Alcohol esters, isocetyl isostearate, cholesterol 12-hydroxystearate, cetyl ethylhexanoate, ethylene glycol di-2-ethylhexanoate, dipentaerythritol fatty acid esters, N-alkyl diol monoisostearate, neopentyl glycol didecanoate, diisostearyl malate, glyceryl di-2-heptylundecanoate, trimethylolpropane tri-2-ethylhexanoate, trimethylolpropane triisostearate, pentaerythritol tetra-2-ethylhexanoate, tri(ethylhexanoic acid) Glycerides (tri-2-ethylhexanoate), tricaprylic acid glyceride, triisopalmitoate, trimethylolpropane triisostearate, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, trimyristic acid glyceride, tri-2-heptylundecanoate glyceride, castor oil fatty acid methyl ester, oleic acid oleyl alcohol ester, acetylglycine glyceride, 2-heptylundecyl palmitate, diisobutyl adipic acid, N-lauroyl-L-glutamic acid-2-octyldodecyl ester, di-2-heptylundecyl adipic acid, ethyl laurate, di-2-ethylhexyl sebacate, 2-hexyldecyl myristate, 2-hexyldecyl palmitate, 2-hexyldecyl adipic acid, diisopropyl sebacate, 2-ethylhexyl succinate, and triethyl citrate, etc., but not limited to these.

[0085] Furthermore, specific examples of UV absorbers that can be used as polar oils include, but are not limited to, benzoic acid derivatives, salicylic acid derivatives, cinnamic acid derivatives, dibenzoylmethane derivatives, β,β-diphenylacrylate derivatives, benzophenone derivatives, benzyl camphor derivatives, phenylbenzimidazole derivatives, triazine derivatives, phenylbenzotriazole derivatives, o-aminobenzoyl derivatives, imidazoline derivatives, benzylmalonate derivatives, and 4,4-diarylbutadiene derivatives. Moreover, among these, substances with larger molecular weights that are not easily absorbed subcutaneously and low-irritant substances are preferred.

[0086] Specific examples of more preferred ultraviolet absorbers include, for example, ethylhexyl methoxycinnamate, ethylhexyl salicylate, bis-ethylhexyloxyphenol methoxyphenyl triazine (Cinosoub (registered trademark) S), methylene bis-benzotriazolyl tetramethylbutylphenol (Cinosoub (registered trademark) M), diethylamino hydroxybenzoyl hexyl benzoate (Yubinar A Plus), ethylhexyl triazine ketone (Yubinar T150), terephthalic dimethylene camphor sulfonic acid (Megizolil (registered trademark) SX), and cresoltrazol trisiloxane (Megizolil (registered trademark) XL), but are not limited to these.

[0087] In the composition of the present invention, when the oil component includes polar oil, the content of polar oil is not particularly limited. For example, relative to the total oil component, it can be more than 0% by mass, more than 5.0% by mass, more than 10% by mass, more than 20% by mass, more than 30% by mass, more than 40% by mass, more than 50% by mass, or more than 55% by mass. In addition, it can be less than 100% by mass, less than 95% by mass, less than 90% by mass, less than 85% by mass, less than 80% by mass, less than 75% by mass, less than 70% by mass, less than 65% by mass, less than 60% by mass, less than 55% by mass, or less than 50% by mass.

[0088] [Component C]

[0089] (Dispersant)

[0090] In the compositions of the present invention, the dispersant is at least one of a dispersant with an HLB value of 4.5 or less and an amino-terminated polydimethylsiloxane dispersant (hereinafter also simply referred to as "the dispersant of the present invention"). That is, the dispersant of the present invention can be a dispersant with an HLB value of 4.5 or less, or an amino-terminated polydimethylsiloxane dispersant. By using the dispersant of the present invention, pigment particles that have been surface-treated with the ester compound of the present invention can be dispersed in the oil containing at least one of hydrocarbon oil and polar oil, thereby further imparting considerably good dispersibility.

[0091] Here, the so-called "HLB (Hydrophilic-Lipophilic Balance) value" generally represents the affinity of a surfactant for water and oil, and is a parameter known as the hydrophilic-lipophilic balance, for example, it can be defined by the Griffith method. However, in the case of surfactants with an oxypropylene structure (including dispersants), it can be defined by the Kawakami method.

[0092] More specifically, the HLB value of the dispersant involved in this invention can be, for example, 4.5 or less, 4.4 or less, 4.3 or less, 4.2 or less, 4.1 or less, 4.0 or less, 3.9 or less, 3.8 or less, 3.7 or less, 3.6 or less, 3.5 or less, 3.4 or less, 3.3 or less, 3.2 or less, 3.1 or less, 3.0 or less, 2.9 or less, 2.8 or less, 2.7 or less, 2.6 or less, 2.5 or less, 2.4 or less, 2.3 or less, 2.2 or less, 2.1 or less, 2.0 or less, 1.9 or less, 1.5 or less, or 1.0 or less. Alternatively, it can be 0.3 or more, 0.4 or more, 0.5 or more, 0.6 or more, 0.7 or more, 0.8 or more, 0.9 or more, 1.0 or more, 1.5 or more, 1.8 or more, 2.0 or more, 2.3 or more, 2.5 or more, 2.8 or more, or 3.0 or more.

[0093] Furthermore, amino-terminated polydimethylsiloxane dispersants are also called aminoethylaminopropylmethylsiloxane / dimethylsiloxane copolymer dispersants, and preferably use, for example, compounds represented by the following formula (1):

[0094] Here, the functional group equivalent of the compound of formula (1) can be 1000 or more, 1500 or more, or 2000 or more. In addition, it can be 3000 or less, 2500 or less, 2000 or less, or 1800 or less. It should be noted that the so-called "functional group equivalent" refers to the value of dividing the molecular weight of the compound of formula (1) by the number of amino groups contained in the molecule.

[0095] Furthermore, in formula (1), X is an alkyl group with 1 to 18 carbon atoms, R and R' are alkyl groups with 1 to 6 carbon atoms, m is 20 to 2000, and n is 1 to 100.

[0096] It should be noted that, in this invention, the HLB value of the ammonia-terminated polydimethylsiloxane dispersant is not particularly limited. For example, it can be the same as the range of HLB values ​​(below 4.5) of the dispersant mentioned above, or it can be an HLB value outside of that range.

[0097] In the compositions of this invention, the content of the dispersant involved in this invention is not particularly limited. For example, relative to the total of 100 parts by weight of the surface-treated pigment particles (component (A)), the oil comprising at least one of hydrocarbon oil and polar oil (component (B)), and the dispersant (component (C)) of the present invention, the amount can be 0.5 parts by weight or more, 1.0 parts by weight or more, 1.5 parts by weight or more, 2.0 parts by weight or more, 2.5 parts by weight or more, 3.0 parts by weight or more, 3.5 parts by weight or more, 4.0 parts by weight or more, 4.5 parts by weight or more, 5.0 parts by weight or more, 5.5 parts by weight or more, 6.0 parts by weight or more, 6.5 parts by weight or more, 7.0 parts by weight or more, 7.5 parts by weight or more, 8.0 parts by weight or more, 8.5 parts by weight or more, 9.0 parts by weight or more, 9.5 parts by weight or more, 10 parts by weight or more, or 11 parts by weight or more. Alternatively, the amount can be 30 parts by weight or less, 25 parts by weight or less, 20 parts by weight or less, 15 parts by weight or less, or 12 parts by weight or less.

[0098] Furthermore, in the composition of the present invention, relative to 100 parts by mass of pigment particles that have been surface-treated with the ester compound of the present invention, the dispersant of the present invention may, for example, be 5.0 parts by mass or more, 8.0 parts by mass or more, 10 parts by mass or more, 11 parts by mass or more, 12 parts by mass or more, 13 parts by mass or more, 14 parts by mass or more, 15 parts by mass or more, 16 parts by mass or more, 17 parts by mass or more, 18 parts by mass or more, 19 parts by mass or more, 20 parts by mass or more, 25 parts by mass or more, 30 parts by mass or more, or 35 parts by mass or more. Alternatively, it may be 50 parts by mass or less, 45 parts by mass or less, 40 parts by mass or less, 35 parts by mass or less, 30 parts by mass or less, 25 parts by mass or less, or 20 parts by mass or less.

[0099] As a specific example of the dispersant involved in this invention, there is no particular limitation as long as it is a dispersant with an HLB value of 4.5 or less or an amino-terminated polydimethylsiloxane dispersant. More specifically, the dispersant with an HLB value of 4.5 or less involved in this invention may include, for example, at least one selected from isostearic acid (HLB value: 4.3), polyhydroxystearic acid (HLB value: 4.0), polyricinoleic acid polyglycerol-6 (HLB value: 3.3), bis-butyl polydimethylsiloxane polyglycerol-3 (HLB value: 0.48), PEG-10 polydimethylsiloxane (HLB value: 2.0), and cetyl PEG / PPG-10 / 1 polydimethylsiloxane (HLB value: 3.5). It should be noted that when using two or more dispersants as the dispersant involved in this invention, it is preferable that the HLB value of each dispersant is 4.5 or less.

[0100] Cosmetics

[0101] The compositions of the present invention described above can be blended into various cosmetics. That is, the present invention can provide oil-based cosmetics containing the compositions of the present invention, water-in-oil emulsion cosmetics containing the compositions of the present invention, and oil-in-water emulsion cosmetics containing the compositions of the present invention.

[0102] The compositions of the present invention achieve both the dispersibility of pigment particles in oil and the absence of secondary adhesion. Therefore, cosmetics containing the compositions of the present invention can similarly achieve both the dispersibility of pigment particles in oil and the absence of secondary adhesion.

[0103] Furthermore, in addition to the compositions of the present invention described above, various other ingredients may be appropriately blended into these cosmetics, to a extent that does not affect the effects of the present invention. Moreover, the need for blending other ingredients and the amount of blending can be appropriately adjusted according to the type of cosmetic described above.

[0104] Here, various other ingredients are not particularly limited and can be ingredients that can be commonly mixed in cosmetics. Examples include water, surfactants other than the dispersants of the present invention, moisturizers, thickeners, gelling agents, stabilizers, water-soluble polymers, oil-soluble polymers, film-forming agents, higher fatty acids, metal ion blocking agents, lower alcohols, higher alcohols, various extracts, sugars, amino acids, organic amines, polymeric emulsions, chelating agents, ultraviolet absorbers other than the polar oils mentioned above, pH adjusters, skin nutrients, vitamins, water-soluble agents that can be used in pharmaceuticals, quasi-pharmaceuticals, cosmetics, etc., buffers, fading inhibitors, preservatives, dispersants, propellants, powders and fragrances other than the pigment particles of the present invention mentioned above.

[0105] <Oil-based cosmetics>

[0106] In this invention, the term "oil-based cosmetic" refers to a cosmetic with a single oil phase. Furthermore, oil-based cosmetics typically do not substantially contain water that exists separately from the oil phase.

[0107] In the oil-based cosmetic of the present invention, the content of the composition of the present invention is not particularly limited. For example, it can be 80% or more by mass, 85% or more by mass, 90% or more by mass, 95% or more by mass, or 99% or more by mass. In addition, it can be 100% or less by mass, 99% or less by mass, 98% or less by mass, 97% or less by mass, 96% or less by mass, or 95% or less by mass.

[0108] In the oily cosmetic of the present invention, the content of the oil comprising at least one of hydrocarbon oil and polar oil is not particularly limited. For example, relative to the total oily cosmetic, it can be 10% or more by mass, 15% or more by mass, 20% or more by mass, 25% or more by mass, 30% or more by mass, or 33% or more by mass. In addition, it can be 80% or less by mass, 75% or less by mass, 70% or less by mass, 65% or less by mass, 60% or less by mass, 55% or less by mass, 50% or less by mass, 45% or less by mass, 40% or less by mass, or 35% or less by mass.

[0109] In the oil-based cosmetic of the present invention, the content of the surface-treated pigment particles is not particularly limited. For example, relative to the total oil-based cosmetic, it can be 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, 3.0% by mass or more, 3.5% by mass or more, 4.0% by mass or more, 4.5% by mass or more, 5.0% by mass or more, 5.5% by mass or more, 6.0% by mass or more, 6.5% by mass or more, 7.0% by mass or more, or 7.5% by mass or more. Above, 8.0% mass, 8.5% mass, 9.0% mass, 9.5% mass, 10% mass, 11% mass, 12% mass, 13% mass, 14% mass, or 15% mass. Alternatively, it can be below 40% mass, below 38% mass, below 36% mass, below 34% mass, below 32% mass, below 30% mass, below 28% mass, below 26% mass, below 24% mass, below 22% mass, below 20% mass, below 18% mass, or below 16% mass.

[0110] In the oil-based cosmetic of the present invention, the content of the dispersant involved in the present invention is not particularly limited. For example, relative to the total oil-based cosmetic, it can be 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, 3.0% by mass or more, 3.5% by mass or more, 4.0% by mass or more, 4.5% by mass or more, 5.0% by mass or more, 5.5% by mass or more, or 6.0% by mass or more. In addition, it can be 10% by mass or less, 9.5% by mass or less, 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, 6.0% by mass or less, 5.5% by mass or less, 5.0% by mass or less, 4.5% by mass or less, 4.0% by mass or less, 3.5% by mass or less, or 3.0% by mass or less.

[0111] <Water-in-oil emulsion cosmetic>

[0112] The water-in-oil emulsion cosmetic of the present invention may contain the composition of the present invention in its continuous phase (external phase).

[0113] In the water-in-oil emulsion cosmetic of the present invention, the content of the composition of the present invention is not particularly limited. For example, it can be 30% or more by mass, 35% or more by mass, 40% or more by mass, 45% or more by mass, 50% or more by mass, 55% or more by mass, 60% or more by mass, 65% or more by mass, 70% or more by mass, 75% or more by mass, 80% or more by mass, 85% or more by mass, or 90% or more by mass. Alternatively, it can be less than 90% by mass, less than 85% by mass, less than 80% by mass, less than 75% by mass, less than 70% by mass, less than 65% by mass, less than 60% by mass, or less than 55% by mass.

[0114] In the water-in-oil emulsion cosmetic of the present invention, the water content is not particularly limited. For example, it can be 5.0% or more by mass, 10% or more by mass, 15% or more by mass, 20% or more by mass, 25% or more by mass, or 30% or more by mass. In addition, it can be 65% or less by mass, 60% or less by mass, 55% or less by mass, 50% or less by mass, 45% or less by mass, 40% or less by mass, 35% or less by mass, 30% or less by mass, or 25% or less by mass.

[0115] In the water-in-oil emulsion cosmetic of the present invention, the content of the oil comprising at least one of hydrocarbon oil and polar oil is not particularly limited. For example, relative to the whole water-in-oil emulsion cosmetic, it can be 10% or more by mass, 15% or more by mass, 20% or more by mass, 25% or more by mass, 30% or more by mass, or 33% or more by mass. In addition, it can be 70% or less by mass, 65% or less by mass, 60% or less by mass, 55% or less by mass, 50% or less by mass, 45% or less by mass, 40% or less by mass, or 35% or less by mass.

[0116] In the water-in-oil emulsion cosmetic of the present invention, the content of the surface-treated pigment particles is not particularly limited. For example, relative to the total water-in-oil emulsion cosmetic, it can be 0.01% by mass or more, 0.05% by mass or more, 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, 3.0% by mass or more, 3.5% by mass or more, 4.0% by mass or more, 4.5% by mass or more, 5.0% by mass or more, 5.5% by mass or more, 6.0% by mass or more, 6.5% by mass or more, 7.0% by mass or more, 7.5% by mass or more, or 8.0% by mass or more. Quantity % or more, 8.5% or more, 9.0% or more, 9.5% or more, 10% or more, 11% or more, 12% or more, 13% or more, 14% or more, or 15% or more. In addition, it can be less than 50% or more, less than 48% or more, less than 46% or more, less than 44% or more, less than 42% or more, less than 40% or more, less than 38% or more, less than 36% or more, less than 34% or more, less than 32% or more, less than 30% or more, less than 28% or more, less than 26% or more, less than 24% or more, less than 22% or more, less than 20% or more, less than 18% or more, or less than 16% or more.

[0117] In the water-in-oil emulsion cosmetic of the present invention, the content of the dispersant involved in the present invention is not particularly limited. For example, relative to the total water-in-oil emulsion cosmetic, it can be 0.01% by mass or more, 0.05% by mass or more, 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, 3.0% by mass or more, 3.5% by mass or more, 4.0% by mass or more, 4.5% by mass or more, 5.0% by mass or more, or 5.5% by mass or more. Above or 6.0% by mass, or above, and may also be below 30% by mass, below 25% by mass, below 20% by mass, below 15% by mass, below 10% by mass, below 9.5% by mass, below 9.0% by mass, below 8.5% by mass, below 8.0% by mass, below 7.5% by mass, below 7.0% by mass, below 6.5% by mass, below 6.0% by mass, below 5.5% by mass, below 5.0% by mass, below 4.5% by mass, below 4.0% by mass, below 3.5% by mass, or below 3.0% by mass.

[0118] For the water-in-oil emulsion cosmetic of the present invention, the dispersant mentioned above can function as an emulsifier. In addition, in order to maintain emulsion stability, it may contain emulsifiers other than the dispersant mentioned above.

[0119] <Water-in-oil emulsion cosmetic>

[0120] The water-in-oil emulsion cosmetic of the present invention may contain the composition of the present invention in its dispersed phase (internal phase).

[0121] In the water-in-oil emulsion cosmetic of the present invention, the content of the composition of the present invention is not particularly limited. For example, it can be 10% or more by mass, 15% or more by mass, 20% or more by mass, 25% or more by mass, 30% or more by mass, 35% or more by mass, 40% or more by mass, 45% or more by mass, 50% or more by mass, 55% or more by mass, 60% or more by mass, 65% or more by mass, or 70% or more by mass. In addition, it can be 80% or less by mass, 75% or less by mass, 65% or less by mass, 55% or less by mass, 50% or less by mass, or 45% or less by mass.

[0122] Furthermore, in the water-in-oil emulsion cosmetic of the present invention, the water content is not particularly limited. For example, it can be 30% or more by mass, 35% or more by mass, 40% or more by mass, 45% or more by mass, 50% or more by mass, 55% or more by mass, 60% or more by mass, 65% or more by mass, 70% or more by mass, 75% or more by mass, 80% or more by mass, or 85% or more by mass. Alternatively, it can be 90% or less by mass, 85% or less by mass, 75% or less by mass, 70% or less by mass, 65% or less by mass, 60% or less by mass, or 55% or less by mass.

[0123] In the oil-in-water emulsion cosmetic of the present invention, the content of the oil comprising at least one of hydrocarbon oil and polar oil is not particularly limited. For example, relative to the total oil-in-water emulsion cosmetic, it can be 10% or more by mass, 15% or more by mass, 20% or more by mass, 25% or more by mass, 30% or more by mass, or 33% or more by mass. In addition, it can be 70% or less by mass, 65% or less by mass, 60% or less by mass, 55% or less by mass, 50% or less by mass, 45% or less by mass, 40% or less by mass, or 35% or less by mass.

[0124] In the oil-in-water emulsion cosmetic of the present invention, the content of the surface-treated pigment particles is not particularly limited. For example, relative to the total amount of the oil-in-water emulsion cosmetic, it can be 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, 3.0% by mass or more, 3.5% by mass or more, 4.0% by mass or more, 4.5% by mass or more, 5.0% by mass or more, 5.5% by mass or more, 6.0% by mass or more, 6.5% by mass or more, 7.0% by mass or more, or 7.5% by mass or more. Quality percentage or above, 8.0% or above, 8.5% or above, 9.0% or above, 9.5% or above, 10% or above, 11% or above, 12% or above, 13% or above, 14% or above, or 15% or above. Alternatively, it can be below 40% or below, 38% or below, 36% or below, 34% or below, 32% or below, 30% or below, 28% or below, 26% or below, 24% or below, 22% or below, 20% or below, 18% or below, or 16% or below.

[0125] In the water-in-oil emulsion cosmetic of the present invention, the content of the dispersant involved in the present invention is not particularly limited. For example, relative to the total amount of the oil-in-water emulsion cosmetic, it can be 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, 3.0% by mass or more, 3.5% by mass or more, 4.0% by mass or more, 4.5% by mass or more, 5.0% by mass or more, 5.5% by mass or more, or 6.0% by mass or more. In addition, it can be 20% by mass or less, 15% by mass or less, 10% by mass or less, 9.5% by mass or less, 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, 6.0% by mass or less, 5.5% by mass or less, 5.0% by mass or less, 4.5% by mass or less, 4.0% by mass or less, 3.5% by mass or less, or 3.0% by mass or less.

[0126] The water-in-oil emulsion cosmetic of the present invention may contain emulsifiers other than the dispersants mentioned in the present invention.

[0127] <Dosage Form>

[0128] Examples of dosage forms for cosmetics containing the compositions of the present invention include, but are not limited to, solid, semi-solid, solid ointment, stick, lotion, liquid, gel, fruit syrup, cream, ointment or paste.

[0129] <use>

[0130] Examples of uses for cosmetics containing the compositions of the present invention include, but are not limited to, foundation, blush, eyebrow pencil, eyeshadow, eyeliner, mascara, lipstick, primer, concealer, eye cream, and lip balm.

[0131] Example

[0132] The following examples illustrate the invention in further detail, but the invention is not limited to these examples. It should be noted that, unless otherwise specified, the content is expressed as a percentage by mass (%).

[0133] Examples and Comparative Examples

[0134] The oil-in-water emulsion cosmetics prepared according to the formulation examples and comparative examples shown in Table 1 below were evaluated for their dispersibility immediately after preparation, dispersibility over time, and the effect of no secondary adhesion according to the following criteria. The results are shown in Table 1.

[0135] Dispersion after initial modulation

[0136] The dispersion of each freshly prepared cosmetic material obtained in the Examples and Comparative Examples was evaluated by visual inspection. It should be noted that the evaluation criteria are as follows: “A”: No color unevenness is visible on the liquid surface; “B”: Color unevenness is almost invisible on the liquid surface; "C": Uneven color was observed at approximately half of the liquid surface; “D”: Uneven color was observed on more than half of the liquid surface.

[0137] It should be noted that the less or no "color unevenness" on the liquid surface, the better the dispersibility. The same applies to the following "dispersibility over time".

[0138] Dispersion over time

[0139] Rolling tests were conducted on each cosmetic material obtained in the Examples and Comparative Examples to evaluate its dispersibility over time.

[0140] More specifically, for the rolling test, the prepared cosmetic materials were filled into a cylindrical container and rotated in a rolling tester at 45 rpm for 4 hours at room temperature. Changes in the state of the cosmetic materials were observed. The evaluation criteria are as follows: "A": No change is visible in the appearance of the cosmetic; "B": Although a slight color change was observed in the cosmetic, there were no obstacles to its use; "C": The degree to which the color change observed in the cosmetic indicates an obstacle to its use; “D”: Significant color change / agglomeration is observed in the cosmetic, indicating a level of difficulty in application.

[0141] The effect of no secondary adhesion

[0142] Each cosmetic material obtained in the examples and comparative examples was applied to artificial leather at a dose of 5 mg and left to stand at 37°C for 5 minutes. Next, the coated area was tapped twice using a tapping tester to transfer the material to filter paper. The amount of material transferred to the filter paper was visually evaluated according to the following criteria.

[0143] “A”: No transfer to the filter paper is visible at all; “B”: Almost no transfer to the filter paper is visible; “C”: A slight transfer to the filter paper was observed; “D”: A significant amount of transfer to the filter paper was observed.

[0144] [Table 1]

[0145] [Table 2]

[0146] As clearly shown in Table 1, the cosmetics of Examples 1-6 exhibit good dispersibility (both immediately after preparation and after time) and a high degree of non-re-adhesion. This indicates that the cosmetics of Examples 1-5 can achieve both the dispersibility of surface-treated pigment particles in oil and the effect of non-re-adhesion.

[0147] In contrast, although the cosmetics in Comparative Examples 1 to 3 used a substance that had been surface-treated with tetraisostearate polyglycerol-2 ester (an ester compound of fatty acids with 8 to 20 carbon atoms and glycerol) as pigment particles in the same manner as in Examples 1 to 5, they could not simultaneously achieve the dispersibility of surface-treated pigment particles in oil and the effect of no secondary adhesion.

[0148] More specifically, it can be seen that although the cosmetic material of Comparative Example 1 exhibited good dispersibility immediately after preparation, its dispersibility deteriorated over time, and its ability to prevent secondary adhesion was also poor. This result is presumably because the cosmetic material of Comparative Example 1 used a dispersant with an HLB value of 4.8.

[0149] Furthermore, Comparative Example 2 exhibited the same tendency as Comparative Example 1. It can be seen that while the cosmetic material of Comparative Example 2 showed good dispersibility immediately after preparation, its dispersibility deteriorated over time, and its ability to prevent secondary adhesion was also poor. This result is presumably because the cosmetic material of Comparative Example 2 used a dispersant with an HLB value of 5.0.

[0150] On the other hand, it can be seen that the cosmetic material in Comparative Example 3, without the use of a dispersant, resulted in a high degree of non-secondary adhesion, but poor dispersibility both immediately after preparation and over time.

[0151] Furthermore, it can be seen that the cosmetics in Comparative Examples 4 and 5, although mixed with the same oil and the same dispersant as in Example 1, were mixed with pigment particles that had been surface-treated with a different surface treatment agent than in Example 1. As a result, although the dispersibility immediately after preparation and the dispersibility over time were good, the effect of no secondary adhesion was poor.

[0152] Furthermore, it can be seen that the cosmetic material of Comparative Example 6, although it was mixed with the same oil and the same dispersant as in Example 1, was mixed with pigment particles that had been surface-treated with a different surface treatment agent than in Example 1. As a result, although the dispersibility immediately after preparation and the dispersibility over time were poor, the effect of no secondary adhesion was slightly better.

[0153] Furthermore, the cosmetic material of Comparative Example 7, although it was mixed with the same oil as in Example 1, was mixed with pigment particles that had been surface-treated with a surface treatment agent and different dispersants than in Example 1. As a result, the dispersibility after preparation and the dispersibility after time were poor, and the effect of no secondary adhesion could not be evaluated.

[0154] Prescription Examples

[0155] The following are illustrative examples of formulations of the compositions of the present invention. It should be noted that the present invention is not limited in any way by the following formulations.

[0156] <Prescription Example 1: Water-in-oil foundation>

[0157] [Table 3]

[0158] <Prescription Example 2: Oily Solid Lipstick>

[0159] [Table 4]

[0160] <Prescription Example 3: Oily Mascara>

[0161] [Table 5]

[0162] <Prescription Example 4: Water-in-oil concealer>

[0163] [Table 6]

[0164] <Prescription Example 5: Bronzing Contouring Powder>

[0165] [Table 7]

[0166] <Prescription Example 6: Anti-aging Foundation>

[0167] [Table 8]

Claims

1. A cosmetic composition comprising the following ingredients: (A) Pigment particles that have been surface-treated with ester compounds of fatty acids with 8 to 20 carbon atoms and glycerol; (B) An oil fraction containing at least one of hydrocarbon oils and polar oils; and (C) At least one of the following: a dispersant with an HLB value of 4.5 or less and an ammonia-terminated polydimethylsiloxane dispersant.

2. The cosmetic composition according to claim 1, wherein the ester compound is selected from at least one of tetraisostearate diglyceride, triisostearate diglyceride, tri(caprylic / capric) glyceride, dilaurate glyceride, triisostearate glyceride, monoisostearate decaglyceride, and diisostearate decaglyceride.

3. The cosmetic composition according to claim 1 or 2, wherein the dispersant with an HLB value of 4.5 or less comprises at least one selected from isostearic acid, polyhydroxystearic acid, polyricinoleic acid polyglycerol-6, bis-butylpolydimethylsiloxane polyglycerol-3, PEG-10 polydimethylsiloxane, and cetyl PEG / PPG-10 / 1 polydimethylsiloxane.

4. The cosmetic composition according to any one of claims 1 to 3, wherein the pigment particles comprise at least one selected from titanium dioxide, iron oxide yellow, iron oxide red, iron oxide black, talc, zinc oxide, silicon dioxide, pearl mica, mica, and sericite.

5. The cosmetic composition according to any one of claims 1 to 4, wherein the oil comprises the volatile hydrocarbon oil.

6. The cosmetic composition according to any one of claims 1 to 5, wherein the surface-treated pigment particles comprise 5.0 to 50 parts by weight relative to a total of 100 parts by weight of the components (A), (B), and (C).

7. The cosmetic composition according to any one of claims 1 to 6, wherein the oil comprises 40 to 90 parts by weight relative to a total of 100 parts by weight of said component (A), said component (B) and said component (C).

8. The cosmetic composition according to any one of claims 1 to 7, wherein the dispersant is 0.5 to 30 parts by weight relative to a total of 100 parts by weight of the components (A), (B), and (C).

9. The cosmetic composition according to any one of claims 1 to 8, wherein the component (C) is 5.0 parts by weight or more relative to 100 parts by weight of the component (A).

10. An oily cosmetic comprising the cosmetic composition according to any one of claims 1 to 9.

11. A water-in-oil emulsion cosmetic, comprising the cosmetic composition according to any one of claims 1 to 9.

12. An oil-in-water emulsified cosmetic, comprising the cosmetic composition according to any one of claims 1 to 9.

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