Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
  • A61Q1/02—Preparations containing skin colorants, e.g. pigments
  • A61Q1/10—Preparations containing skin colorants, e.g. pigments for eyes, e.g. eyeliner, mascara
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
  • A61K8/0241—Containing particulates characterized by their shape and/or structure
  • A61K8/0254—Platelets; Flakes
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
  • A61K8/0241—Containing particulates characterized by their shape and/or structure
  • A61K8/0254—Platelets; Flakes
  • A61K8/0258—Layered structure
  • A61K8/0262—Characterized by the central layer
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
  • A61K8/04—Dispersions; Emulsions
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
  • A61K8/04—Dispersions; Emulsions
  • A61K8/06—Emulsions
  • A61K8/062—Oil-in-water emulsions
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
  • A61K8/25—Silicon; Compounds thereof
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
  • A61K8/26—Aluminium; Compounds thereof
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
  • A61K8/36—Carboxylic acids; Salts or anhydrides thereof
  • A61K8/362—Polycarboxylic acids
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
  • A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
  • A61K8/8141—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
  • A61K8/8152—Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
  • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
  • A61K2800/42—Colour properties
  • A61K2800/43—Pigments; Dyes
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
  • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
  • A61K2800/60—Particulates further characterized by their structure or composition
  • A61K2800/61—Surface treated
  • A61K2800/62—Coated
  • A61K2800/621—Coated by inorganic compounds
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
  • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
  • A61K2800/60—Particulates further characterized by their structure or composition
  • A61K2800/61—Surface treated
  • A61K2800/62—Coated
  • A61K2800/622—Coated by organic compounds
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
  • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
  • A61K2800/60—Particulates further characterized by their structure or composition
  • A61K2800/61—Surface treated
  • A61K2800/62—Coated
  • A61K2800/63—More than one coating
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
  • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
  • A61K2800/60—Particulates further characterized by their structure or composition
  • A61K2800/65—Characterized by the composition of the particulate/core
  • A61K2800/651—The particulate/core comprising inorganic material

Definitions

• the present invention relates to a water-based liquid cosmetic, and more specifically, to a water-based liquid cosmetic suitable for use in eye makeup having excellent brilliance, color development and abrasion resistance.
• eye makeup cosmetics Various types of cosmetics (hereinafter sometimes referred to as eye makeup cosmetics) applied around the eyes, such as eyeliner, eyebrow, and eye color, are known to be oily or water-based. There is. Of these, water-based cosmetics are excellent in that the cosmetic coating film does not easily bleed and are easy to remove, and their development has been enthusiastically promoted recently. Eye make-up cosmetics are used for the purpose of enhancing the impression of the eyes, and black ones that have a high effect of making the eyes look bigger have been used for a long time, but in recent years their uses have diversified and more. In order to meet the demand for high fashionability, the number of products containing highly brilliant pearl pigments and lame agents is increasing.
• Patent Document 1 proposes a liquid cosmetic containing a mica-based pearl pigment and an anionic polymer compound such as xanthan gum as a dispersant for the pigment.
• an anionic polymer compound such as xanthan gum
• pearl pigments settle faster because the particles are coarser, and because the particle shape is flat, once settled pigments tend to form hard cakes and are difficult to redisperse.
• the cosmetics described in the same document have solved the problem by blending an anionic polymer compound as a dispersant.
• an aqueous cosmetic containing black iron oxide-coated mica titanium or iron oxide-coated mica titanium as a pearl pigment, and xanthan gum, tragant gum, and an alkyl acrylate copolymer emulsion as dispersants is disclosed. (See Table 1).
• Patent Document 2 proposes an aqueous eyeliner composition containing a brilliant pigment, carbon black, a polysaccharide derived from a microorganism, a volatile alcohol and an alkyl acrylate copolymer emulsion. It is described that it has excellent abrasion resistance, has vivid color development and smooth writing taste, and has good storage stability.
• the bright pigment dye-coated mica titanium such as iron oxide-coated mica titanium or carmine-coated mica titanium is preferable (see paragraph 0015), and sufficient performance is obtained when polysaccharides derived from microorganisms are not contained. It is stated that this is not possible (see Comparative Example 2 in Table 1).
• Patent Document 3 proposes an aqueous liquid make-up cosmetic containing a plate pigment, a pigment dispersant, a film forming agent, a surfactant and a spherical powder, and this cosmetic is a precipitation of a plate pigment. Is alleviated, and it is stated that redispersion is possible even if sedimentation occurs due to storage (see paragraph 0011).
• the plate-like pigment is a pearl pigment, and specific examples thereof are mica, mica titanium and the like (see paragraph 0015)
• the pigment dispersant is acrylic acid, methacrylic acid or their (C1 to C4).
• Patent Document 2 lists aluminum powder, iron oxide-coated aluminum powder, and polyethylene terephthalate / aluminum / epoxy laminated powder as specific examples of bright pigments (see paragraph 0014), of which polyethylene terephthalate / aluminum is used. -A specific example of blending the epoxy laminated powder together with the mica titanium-based bright pigment is described (see Examples 2 and 4 in Table 1).
• Patent Document 3 aluminum-coated polyester film and aluminum powder pigment are mentioned as examples of plate-like pigments together with mica, mica titanium and the like (see claim 2), but the pigment containing aluminum as a component is a pearl pigment. Is not described as a specific example (see paragraph 0015), and nothing is described as to what kind of performance is exhibited when they are blended in an aqueous liquid cosmetic.
• the present invention has been completed based on such a background technique, and an object of the present invention is to provide an aqueous liquid cosmetic having excellent brilliance, color development and abrasion resistance, and also excellent storage stability. It is in.
• the present inventors have combined a specific flaky aluminum with a polycarboxylic acid-based dispersant having a specific molecular weight and a film-forming polymer emulsion in an aqueous liquid cosmetic. It has been found that when used, a cosmetic coating film having excellent brilliance, color development and abrasion resistance can be obtained, and an aqueous liquid cosmetic having excellent storage stability can be obtained, and the present invention has been completed. ..
• the flaky aluminum powder coated with the silicon compound-containing layer is 1 to 15% by mass
• the polycarboxylic acid-based dispersant having a mass average molecular weight of 10,000 or less is 0.
• the aqueous liquid cosmetic of the present invention has excellent brilliance, color development and abrasion resistance, and also has good storage stability.
• the flaky aluminum powder coated with the silicon compound-containing layer as the component (A) is a composite having one or more coating layers on the surface of the flaky aluminum powder. It is a powder and is a composite powder in which at least one of the coating layers is composed of a silicon compound-containing layer.
• the term "aluminum powder” refers to alloys containing aluminum as a main component, such as silicon, magnesium, manganese, copper, zinc, nickel, vanadium, lead, antimony, tin, cadmium, bismuth, titanium, and chromium.
• an aluminum alloy having excellent corrosion stability may be selected from those described in the Japanese Industrial Standards (JIS H 4140).
• the coating layer is a silicon compound-containing layer, and when there are two or more layers, at least one of them may be composed of a silicon compound-containing layer.
• the coating layers include layers of metal oxides such as titanium oxide, zirconium oxide, and iron oxide, molybdenum-containing coatings, and phosphoric acid compound coatings.
• the flaky aluminum powder used as a substrate for the composite powder can be obtained by crushing the aluminum pieces according to a conventional method. Specifically, it can be manufactured by a stamp method using a stamp mill, a ball mill method, or the like.
• the average particle size of the major axis of the flaky aluminum powder is preferably 1 to 300 ⁇ m, more preferably 5 to 100 ⁇ m. If it is less than 1 ⁇ m, the brilliance becomes low, and if it exceeds 300 ⁇ m, it tends to have a rough feel.
• the aspect ratio (major axis / thickness) of the flaky aluminum powder is preferably 2 to 1,000, more preferably 10 to 500. If the aspect ratio is too small, the brilliance of the powder will be low, and if it is too large, it will be difficult to disperse the powder uniformly.
• the silicon compound-containing layer constituting at least one layer of the coating layer is preferably a layer composed of a compound containing a Si—O bond (hereinafter, also referred to as “Si—O-based coating layer”).
• a layer include a layer containing at least one of a silane compound and a silicon oxide. That is, in addition to the layer containing the silane compound [H 3 SiO (H 2 SiO) nSiH 3 ] (where n indicates an arbitrary positive integer), SiO 2 , SiO 2 ⁇ nH 2 O (where n). Indicates an arbitrary positive integer.)
• An example is a layer containing a silicon oxide represented by () or the like. These silicon compounds may be crystalline or amorphous, but are particularly preferably amorphous. Therefore, as a layer containing silicon oxide such as silica, a layer containing amorphous silica is preferably used.
• the silicon compound-containing layer may contain an organosilicon compound or a component derived from the organosilicon compound within a range that does not essentially interfere with the effects of the present invention.
• the silicon compound-containing layer does not have to be a film composed of only a silicon compound, and may contain additives, impurities, etc. other than the silicon compound as long as the characteristics of the present invention are not substantially impaired.
• the content of the silicon compound-containing layer in the component (A) is preferably 5% by mass or more, more preferably 20% or more, from the viewpoint of the stability of the aluminum powder in the aqueous liquid cosmetics. If the content is excessively low, the gloss may be lost over time when blended in an aqueous liquid cosmetic, or aluminum may react with water to easily generate hydrogen gas.
• the flaky aluminum powder coated with the silicon compound-containing layer can be produced according to a known method, for example, the method described in JP-A-2018-172617.
• flakes of aluminum are dispersed in isopropanol, followed by forming a first coating layer with metallic molybdenum powder, and then using tetraethoxysilane to form a silicon-containing compound layer as a second layer to form flakes.
• a composite powder composed of aluminum / metal molybdenum layer / silicon-containing compound layer can be obtained.
• Examples of commercially available products of such flaky aluminum powder include Cosmicolor Celeste Frost Silver (manufactured by Toyo Aluminum K.K.).
• the blending amount of the flaky aluminum powder coated with the silicon compound-containing layer of the component (A) is 1 to 20% by mass, preferably 2 to 15% by mass, and particularly preferably 3 to 10% by mass of the entire cosmetic. %. If it is less than 1% by mass, the brilliance becomes low, and if it exceeds 20% by mass, the abrasion resistance becomes low.
• (B) Polycarboxylic Acid Dispersant In the present invention, a polycarboxylic acid dispersant having a mass average molecular weight of 10,000 or less is used in order to improve the dispersibility of the flaky aluminum powder of the component (A). ..
• the polycarboxylic acid-based dispersant is water-soluble, and by using this dispersant, precipitation of flaky aluminum powder is suppressed, and even if precipitation occurs, it becomes easy to redisperse.
• the polycarboxylic acid-based dispersant is a water-soluble polymer having a polymerization unit of ethylenically unsaturated carboxylic acid in the molecule, or a polymer having a polymerization unit of ethylenically unsaturated carboxylic acid in the molecule. It means a dispersant containing a water-soluble salt as an active ingredient.
• Specific examples of the polycarboxylic acid include homopolymers or copolymers of lower ethylenically unsaturated fatty acid-based monomers such as acrylic acid, methacrylic acid, maleic acid, and itaconic acid, and these lower ethylenically unsaturated fatty acid-based monomers.
• Examples thereof include a copolymer of a monomer and an unsaturated olefin such as ethylene, propylene, butene, penten, hexene, and styrene.
• the type of polycarboxylic acid salt is not particularly limited as long as it is acceptable as a cosmetic, and specific examples thereof include alkali metal salts such as sodium salt and potassium salt, ammonium salts, and organic amine salts. Can be mentioned. Of these, sodium salts and potassium salts are preferably used.
• the mass average molecular weight of the water-soluble polymer constituting the polycarboxylic acid-based dispersant is 10,000 or less, preferably 9,000 to 500, and more preferably 7,000 to 2,000. is there. If the mass average molecular weight exceeds 10,000, the viscosity increases, making it difficult to apply cosmetics.
• the mass average molecular weight of the water-soluble polymer can be measured by gel permeation chromatography (GPC) using polyethylene glycol having a known molecular weight as a standard substance.
• the component (B) is a polycarboxylic acid salt
• it is usually used as a polycarboxylic acid salt neutralized with a base in advance, but if desired, the polycarboxylic acid and the basic substance are individually separated during the manufacturing process of the cosmetic. May be added to form a polycarboxylic acid salt in the manufacturing process.
• component (B) examples include Julimer AC-10P (polyacrylic acid aqueous solution, average molecular weight: 9,000, solid content: 7% by mass), Julimer AC-10SL (polyacrylic acid aqueous solution, average molecular weight: 3).
• the blending amount of the component (B) is 0.5 to 10% by mass, preferably 0.5 to 7.5% by mass, based on the solid content conversion concentration, based on the total cosmetics. If the blending amount is excessively small, the redispersibility is lowered. On the other hand, if the blending amount is excessively large, the viscosity increases and it becomes difficult to apply.
• the ratio of the component (A) to the component (B) [(A) / (B)] is 1 / 0.1 to 1/2, preferably 1 / 0.15 to 1 / by mass ratio. It needs to be 1.5, more preferably 1 / 0.2 to 1/1. If the ratio of the component (A) is excessively high, the redispersibility is lowered, and conversely, if the ratio is excessively low, application becomes difficult.
• a film-forming polymer emulsion is used as the component (C). It is a water-insoluble macromolecular aqueous dispersion. Specific examples thereof include alkyl acrylate copolymer emulsion, alkyl methacrylic acid copolymer emulsion, styrene / alkyl acrylate copolymer emulsion, styrene / alkyl methacrylate copolymer emulsion, vinyl acetate polymer emulsion, and vinyl pyrrolidone.
• the component (C) is an emulsion of a composite polymer such as a core-shell type polymer emulsion composed of a copolymer of an ethylenically unsaturated carboxylic acid-based monomer and a styrene-based monomer and another polymer and / or a copolymer. May be good.
• a composite polymer such as a core-shell type polymer emulsion composed of a copolymer of an ethylenically unsaturated carboxylic acid-based monomer and a styrene-based monomer and another polymer and / or a copolymer. May be good.
• acrylic acid / alkyl acrylate copolymer emulsion examples include (Acrylate / ethylhexyl acrylate) copolymer (INCI name: ACLYLATES / ETHYLHEXYL ACRYLATE COPOLYMER), and as a commercially available product thereof, Ditosol 5000SJ ( Daito Kasei Kogyo Co., Ltd.) and the like.
• styrene / alkyl acrylate copolymer emulsion what is called (styrene / acrylate) copolymer (INCI name; Stylerene / Acrylates Copolymer) can be mentioned.
• This copolymer is also referred to as a (alkyl acrylate / styrene) copolymer emulsion in the quasi-drug raw material standard 2006.
• Examples of commercially available products of such polymers include Yodosol GH41F (manufactured by AkzoNobel) and Daitosol 5000STY (manufactured by Daito Kasei Kogyo Co., Ltd.).
• composite polymer emulsions such as core-shell polymer emulsions composed of a copolymer of an ethylenically unsaturated carboxylic acid-based monomer and a styrene-based monomer and another polymer and / or a copolymer include acrylic acid.
• examples thereof include Emmapoly CE-119N (manufactured by Gifu Celac), which is an emulsion of a core-shell type copolymer of -2-ethylhexyl acrylate, methyl methacrylate, and ⁇ -methylstyrene.
• the film-forming polymer emulsion of the component (C) is usually one in which the resin content is finely dispersed in the aqueous component at a concentration of 20 to 60% by mass as a solid content.
• the blending amount is 1 to 40% by mass, preferably 2 to 35% by mass, and more preferably 3 to 30% by mass with respect to the total cosmetics in terms of solid content conversion concentration. If the blending amount is excessively small, the abrasion resistance is lowered, and conversely, if the blending amount is excessively large, the viscosity of the cosmetic is increased and it becomes difficult to apply.
• the aqueous liquid cosmetic of the present invention contains the above-mentioned components (A) to (C) in the water medium, the entire cosmetic contains a large amount of water.
• the amount is appropriately selected according to the formulation, but is usually 40% by mass or more, preferably 50 to 80% by mass.
• the water-based liquid cosmetic of the present invention may contain a coloring pigment as the component (D).
• a coloring pigment As the coloring pigment, both an inorganic coloring pigment and an organic coloring pigment are used.
• the coloring pigment is not particularly limited depending on the shape, particle size, and particle structure as long as it is generally used in the field of cosmetics.
• the inorganic coloring pigment examples include inorganic white pigments such as titanium oxide and zinc oxide; inorganic red pigments such as iron oxide, iron hydroxide and iron titanate; inorganic brown pigments such as ⁇ -iron oxide; yellow iron oxide. , Inorganic yellow pigments such as ocher; Inorganic black pigments such as black iron oxide and carbon black; Inorganic purple pigments such as manganese violet and cobalt violet; Inorganic green such as chromium hydroxide, chromium oxide, cobalt oxide and cobalt titanate
• system pigments inorganic blue pigments such as dark blue and ultramarine
• iron oxide-coated mica, iron oxide-coated mica titanium, organic pigment-treated mica titanium, and bright colored powders such as titanium oxide / iron oxide-coated glass powder
• organic coloring pigments examples include Red 201, Red 202, Red 204, Red 205, Red 220, Red 226, Red 228, Red 405, Orange 203, Yellow 205, and Yellow 4. Yellow No. 5, Blue No. 1, Blue No. 404, etc .; 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 Lakes of water-soluble dyes such as No. 5, Yellow No. 202, Yellow No. 203, Green No. 3, Blue No. 1 (zirconium lake, barium lake, aluminum lake, etc.); Natural pigments such as chlorophyll, ⁇ -carotene and theirs. Lakes; dyes and the like. These coloring pigments may be used alone or in combination of two or more.
• the blending amount of the coloring pigment can be appropriately selected. It is preferably 0.01 to 15% by mass, and more preferably 0.05 to 10% by mass. If the blending amount of the coloring material is excessively large, the abrasion resistance tends to be lowered, and conversely, if the blending amount is excessively large, the effect of the coloring material may be insufficient.
• the aqueous liquid cosmetics of the present invention include components used in ordinary cosmetics, such as polyhydric alcohols, pigment dispersants, powders, pH adjusters, water-soluble thickeners, and lower alcohols.
• Additives such as oily components, UV absorbers, UV scatterers, moisturizers, fragrances, antioxidants, preservatives, metal ion blockers, defoamers, fibers, dyes, and various extracts are essential to the effects of the present invention. It can be contained within a range that does not impair.
• the polyhydric alcohol is not particularly limited as long as it is generally used in cosmetics, and specific examples thereof include propylene glycol, dipropylene glycol, 1,3-butylene glycol, and 1,2-pentylene. Examples thereof include glycol, 3-methyl-1,3-butanediol, polyethylene glycol, glycerin, diglycerin, and tetraglycerin. These polyhydric alcohols may be used alone or in combination of two or more.
• the polyhydric alcohol is preferably 0.1 to 20% by mass, more preferably 1 to 15% by mass, based on the total amount of the cosmetic.
• a hydrophilic surfactant for example, an anionic surfactant, a nonionic surfactant, a cationic surfactant, an amphoteric surfactant, etc.
• a dispersant for the pigment can be used.
• the cosmetic contains a large amount of hydrophilic surfactant, the water resistance is lowered. Therefore, the blending amount thereof is preferably 5% by mass or less, particularly 3% by mass or less, based on the total amount of the cosmetic.
• hydrophilic anionic surfactant examples include inorganic and organic salts of fatty acids such as stearic acid and lauric acid, alkylbenzene sulfates, alkyl sulfonates, ⁇ -olefin sulfonates, dialkyl sulfosuccinates and ⁇ -sulfonates.
• polyoxyethylene alkyl ether phosphate and polyaspartate are preferably used because of their good pigment dispersibility.
• hydrophilic nonionic surfactant examples include glycerin fatty acid ester and its alkylene glycol adduct, polyglycerin fatty acid ester and its alkylene glycol adduct, propylene glycol fatty acid ester and its alkylene glycol adduct, and sorbitan.
• the powder is not particularly limited as long as it is used for cosmetics.
• it may have a plate-like shape, a spindle-like shape, a needle-like shape, a particle structure such as a particle size, a porous shape, and a non-porous shape.
• inorganic powders, brilliant powders, organic powders, composite powders and the like can be mentioned. More specifically, aluminum oxide, cerium oxide, silicic anhydride, magnesium oxide, zirconium oxide, magnesium carbonate, calcium carbonate, aluminum silicate, magnesium silicate, magnesium silicate, mica, synthetic mica, synthetic sericite, seri.
• Examples of the pH neutralizing agent include citric acid, ascorbic acid, sodium carbonate, AMP and the like.
• Examples of the preservative include phenoxyethanol, pentylene glycol, ethanol and the like.
• Examples of the water-soluble thickener include hydroxyethyl cellulose, xanthan gum, and the like. These contents are not particularly limited, and may be appropriately adjusted as long as the effects of the present invention are not substantially impaired.
• the aqueous liquid cosmetic of the present invention can be prepared according to a conventional method. For example, it can be produced by uniformly stirring all the raw materials while stirring by a known stirring method such as a propeller type stirrer. It can also be obtained by mixing the colored pigments with some of the aqueous components and / or the pigment dispersant components in advance and then mixing with the remaining components.
• the aqueous liquid cosmetic of the present invention can be suitably used as an eye makeup cosmetic such as eyeliner, eyebrow, and eye color by appropriately adjusting the composition of the above raw materials.
• the evaluation method of the aqueous liquid cosmetics in the following Examples and Comparative Examples is as follows. (Brightness and color development) The sample is filled in a dipping container equipped with a brush ear, and the brush tip is used to apply it to a 2 cm x 2.5 cm square surface on the back surface of black artificial skin (Bioskin plate #BK manufactured by Beaulux) without any gaps. (Approximately 20 mg / cm 2 ), left at room temperature for 3 hours to dry, and then evaluated for brilliance and color development.
• Brightness-I (visual): Ten expert evaluators visually observed the coated surface of the black artificial skin, and graded it on a scale of 1 to 4 based on the evaluation criteria shown in (1) below. The total of the scores of the 10 evaluators was calculated, and the degree of brilliance was judged by the 4-step judgment criteria shown in (2) below. It shows that A is the best and D is the worst.
• Examples 1-2 and Comparative Examples 1-5 ⁇ Eyeliner>
• the eyeliners of the formulations shown in Table 1 were prepared according to the following production procedure, and their brilliance, color development, abrasion resistance, stability, and redispersibility were evaluated by the above methods. The results are also shown in Table 1.
• a polymer emulsion of component 12 was added to the obtained aqueous dispersion and mixed well to obtain an eyeliner.
• the eyeliners of Examples 1 and 2 were excellent in all the evaluation items of brilliance, color development, abrasion resistance, stability, and redispersibility.
• the eyeliners of Comparative Examples 1 to 4 in which titanium oxide-coated synthetic mica, corn-coated mica titanium, or titanium oxide-coated plate-shaped glass, which are bright powders, were used instead of the component (A) had insufficient brilliance.
• the wear resistance was also inferior to that of the eyeliners of Examples 1 and 2.
• the eyeliner containing the flaky aluminum powder not coated with the silicon compound-containing layer was excellent in brilliance but significantly inferior in stability (Comparative Example 5).
• Examples 3 to 6 and Comparative Examples 6 to 9 ⁇ Eyeliner>
• the eyeliners of the formulations shown in Table 2 were prepared according to the following production procedure, and their brilliance, abrasion resistance, and redispersibility were evaluated by the above methods. The results are also shown in Table 2.
• (Manufacturing procedure) (1) After dissolving the components 3 to 7 and 14 to 17 shown in Table 2 in the purified water of the component 2, the interfering pigment of the component 1 and the inorganic pigment of the components 10 to 13 are added, and the interfering pigment is sufficiently stirred. And an aqueous dispersion containing an inorganic pigment was prepared.
• a polymer emulsion of components 8 to 9 was added to the obtained aqueous dispersion and mixed well to obtain an eyeliner.
• the eyeliners of Examples 3 to 6 were excellent in all the evaluation items of brilliance, abrasion resistance, and redispersibility.
• the eyeliners of Comparative Examples 6 to 8 containing no component (B) were significantly inferior in redispersibility
• the eyeliners of Comparative Example 9 containing no component (C) were inferior in abrasion resistance. ..
• the water-based liquid cosmetic of the present invention is excellent in brilliance, color development and abrasion resistance, and also has excellent storage stability and redispersibility. Therefore, eye makeup such as eyeliner, eyebrow and eye color Suitable for up-makeup applications.

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