JP6817715B2 - Easily disintegrating granulated composition, its manufacturing method and cosmetic preparation containing same - Google Patents

Description

The present invention relates to an easily disintegrating granulated composition containing cellulose fibers with a number average fiber diameter of 2 to 150 nm, and a cosmetic containing the same, and further to a method for producing the same. More specifically, the present invention relates to an easily disintegrating granulated composition that has excellent shape retention, is not rough, and has a smooth feel when used, and a cosmetic containing the same, and further to a method for producing the same.

Granulated compositions are used for various purposes. For example, granulated compositions used for cosmetics and daily necessities include granulated compositions for facial cleansing, granulated compositions for bath additives, and granulated compositions for powdered cosmetics. In particular, when used as a granulated composition for powdered cosmetics, it is expected that the composition will be applied directly to the face or body, so the composition may be required to maintain its shape as a granulated composition while also being easily crumbled when used.

Loose types and solid powder cosmetics have been known as the formulations of powder cosmetics such as eye colors and face powders. In particular, solid powder cosmetics are widely supported for their ease of use and simplicity, but they are generally solids made by compressing uniformly dispersed powder into a decorative plate, and their external surface is monotonous. It is known that a highly aesthetic solid powder cosmetic can be obtained by combining multiple colors of granulated compositions. Furthermore, in order to enhance the aesthetics of the cosmetic and the gorgeousness when used, it is sometimes required to contain a quality such as a pearling agent. However, there is a problem that the moldability is reduced by containing a large amount of plate-like powder such as a pearling agent in the granulated composition. To solve these problems, there are known techniques for obtaining a granulated cosmetic composition by combining crystalline cellulose or a cellulose derivative with talc and carrying out an extrusion granulation method (Patent Document 1), a technique for obtaining a solid powder cosmetic product with excellent impact resistance by subjecting a powder composition containing crystalline cellulose to a wet molding method (Patent Document 2), a technique for obtaining a marbled powder makeup cosmetic product by compressing and molding a granulated composition of multiple different colors using a water-soluble polymer as a binder in a powder composition of pigment and oil (Patent Document 3), and a technique for obtaining a multi-colored solid powder cosmetic product by adding granulated powder compositions of different colors to a slurry-like powder dispersion (Patent Document 4).

JP 2007-269656 A JP2014-65691Publication JP 61-36206 A JP 63-14710 Public Relations

However, in the methods of Patent Documents 1 and 2 using crystalline cellulose with a fiber diameter that has been generally used in the past, the moldability of the granulated composition is insufficient, and furthermore, the large fiber diameter causes a rough and undesirable feeling when used, resulting in poor usability. In addition, in the technology of Patent Document 3 using a water-soluble polymer, the moldability of the granulated composition is insufficient, and when a large amount of water-soluble polymer is included to ensure strength, the surface becomes harder than the inside due to the formation of a film by the water-soluble polymer, and disintegration properties decrease, resulting in poor usability. Therefore, it has been difficult to realize an easily disintegrable granulated composition that has excellent shape retention and provides a smooth feeling when used without roughness using the conventional technology.

Therefore, the present invention aims to provide a disintegratable granulated composition that has excellent shape retention and a smooth feel when used without roughness, and a cosmetic product that contains the disintegratable granulated composition.

In view of the current circumstances, the present inventors conducted extensive research and discovered that by including cellulose fibers having a number-average fiber diameter of 2 to 150 nm, it is possible to obtain a readily disintegrating granulated composition that is excellent in shape retention, has no roughness, and provides a smooth feel when used, and a cosmetic composition that includes the readily disintegrating granulated composition, and thus completed the present invention.

That is, the present invention provides an easily disintegrating granulated composition containing component (A) cellulose fibers having a number average fiber diameter of 2 to 150 nm.

The present invention further relates to an easily disintegrating granulated composition containing 0.01 to 1% by mass of the component (A).

The present invention also relates to an easily disintegrating granulated composition containing component (B) an oil agent.

Furthermore, the present invention relates to an easily disintegrating granulated composition containing component (C) talc having an average particle size of 1 to 20 μm.

The present invention relates to an easily disintegrating granulated composition obtained by granulating the aqueous dispersion of component (A) and a powder, and then drying the granulated composition to remove the water.

The present invention also relates to a cosmetic preparation containing the easily disintegrating granulated composition.

Furthermore, the present invention relates to a cosmetic composition in which the cosmetic composition is a powder cosmetic composition.

Furthermore, the present invention relates to a powder cosmetic in which the powder cosmetic is a solid powder cosmetic.

The present invention further relates to a method for producing an easily disintegrating granulated composition, which comprises the steps of dispersing component (A) cellulose fibers having a number average fiber diameter of 2 to 150 nm in water, mixing the aqueous dispersion of component (A) with a powder to form granules, and drying the mixture to remove water to obtain an easily disintegrating granulated composition.

The easily disintegrating granulated composition of the present invention and the cosmetic preparation containing the easily disintegrating granulated composition have excellent shape retention, are not rough, and have a smooth feel when used.

The present invention is described in detail below.

In the present invention, the easily disintegrating granulated composition is obtained by granulating powder, and is easily disintegrated by external stimuli such as pressure. In the present invention, "easily disintegrating" refers to a composition that cannot maintain its shape and disintegrates at a pressure of 5 g/cm2 per unit area. Granulation is defined as obtaining larger particles from one or more types of powder using excipients such as oils, water-soluble polymers, and metal soaps. The easily disintegrating granulated composition in the present invention is one that is easily disintegrated by external stimuli such as pressure, while the granulated composition itself has the strength to maintain its shape. In addition, the particle size of the easily disintegrating granulated composition is preferably 0.5 to 15 mm, more preferably 0.8 to 10 mm, from the viewpoint of the aesthetics of the easily disintegrating granulated composition.

The component (A) used in the present invention is cellulose fiber having a number average fiber diameter of 2 to 150 nm, which has the effect of improving the shape retention of cosmetics. The component (A) used in the present invention is cellulose fiber having a number average fiber diameter of 2 to 150 nm, which is obtained by pulverizing the raw material natural cellulose. The method of pulverization is not particularly limited, and examples thereof include a mechanical pulverization method using a high-pressure homogenizer or a ball mill, a chemical pulverization method in which cellulose is oxidized and pulverized using an N-oxyl compound such as 2,2,6,6-tetramethylpiperidine (TEMPO), and a biological pulverization method using an enzyme such as cellulase. Among these, the chemical pulverization method is preferred because the carboxyl group generated by the oxidation of the hydroxyl group of cellulose during the oxidation reaction contributes to improving impact resistance. The origin of natural cellulose is not particularly limited, and examples thereof include those biosynthesized by the production of plants, animals, and microorganisms.

In the present invention, the number average fiber diameter is measured using a scanning electron microscope, and is calculated from the results of measuring the fiber diameters of 20 fibers and particles in any field of view.

Component (A) of the present invention may be contained in a crushed powder form, or an aqueous dispersion in which it is dispersed in water may be used. When used in an aqueous dispersion, the cellulose fiber is well dispersed in the easily disintegrating granulated composition, which is preferable from the viewpoints of shape retention and lack of roughness. In this case, the content of cellulose fiber in the aqueous dispersion is preferably 0.1 to 10% by weight (hereinafter abbreviated as %), more preferably 0.5 to 5%.

Commercially available aqueous dispersions of component (A) include Binfis BMa-10002 (number average fiber diameter 35 nm) (manufactured by Sugino Machine Co., Ltd.), ACC nanocellulose CNF-1 (number average fiber diameter 20 nm) (manufactured by Chuetsu Pulp Co., Ltd.), Leocrysta C-2SP (number average fiber diameter 10 nm) (manufactured by Daiichi Kogyo Seiyaku Co., Ltd.), and Celish FD-100S (number average fiber diameter 15 nm) (manufactured by Daicel FineChem Co., Ltd.).

The content of component (A) in the present invention is not particularly limited, but from the viewpoint of shape retention and lack of roughness, it is preferably 0.01 to 1%, and more preferably 0.05 to 0.8%.

The easily disintegrating granulated composition of the present invention is obtained by granulating a powder, and the powder is not particularly limited in terms of shape (e.g., spherical, plate-like, acicular, etc.), particle size (e.g., aerosol-like, fine particles, pigment-grade, etc.), particle structure (e.g., porous, non-porous, etc.), etc., and any of the following types can be used: inorganic powders, glittering powders, organic powders, pigment powders, metal powders, composite powders, etc. Specifically, inorganic powders such as titanium oxide, black titanium oxide, cerium oxide, konjou, ultramarine, red iron oxide, yellow iron oxide, black iron oxide, zinc oxide, aluminum oxide, silicic anhydride, magnesium oxide, zirconium oxide, magnesium carbonate, calcium carbonate, calcium sulfate, chromium oxide, chromium hydroxide, carbon black, aluminum silicate, magnesium silicate, magnesium aluminum silicate, mica, synthetic mica, sericite, talc, kaolin, silicon carbide, barium sulfate, bentonite, smectite, and boron nitride, Red No. 201, Red No. 202, Red No. 205, Red No. 226, and Red No. 228, Organic pigment powders such as Orange No. 203, Orange No. 204, Blue No. 404, Yellow No. 401, Black No. 401, Brown No. 201, Purple No. 401, Blue No. 1, Blue No. 2, Blue No. 203, Blue No. 205, Green No. 3, Green No. 201, Green No. 204, Green No. 205, Green No. 401, Green No. 402, Yellow No. 4, Yellow No. 5, Yellow No. 202 (1), Yellow No. 202 (2), Yellow No. 203, Yellow No. 402, Yellow No. 403 (1), Yellow No. 406, Yellow No. 407, Orange No. 205, Orange No. 402, Red No. 2, Red No. 3, Red No. 102, Red No. 104 (1), Red No. 105 (1), Red No. 106, Red No. 227, Red No. 230 (1), Red No. 231, Red Organic pigment powders such as zirconium, barium or aluminum lake, such as Color No. 401, Red No. 502, Red No. 503, Red No. 504, Red No. 506, bismuth oxychloride, titanium oxide coated mica, iron oxide coated mica, iron oxide coated mica titanium, organic pigment coated mica titanium, titanium oxide coated glass flakes, aluminum powder, glittering powders such as polyethylene terephthalate laminated powder, nylon powder, polymethyl methacrylate powder, acrylonitrile-methacrylic acid copolymer powder, vinylidene chloride-methacrylic acid copolymer powder, polyethylene powder, polystyrene powder, (dimethicone Examples of the powder include organic powders such as (vinyl dimethicone/methicone silsesquioxane) crosspolymer powder, (diphenyl dimethicone/vinyl diphenyl dimethicone/silsesquioxane) crosspolymer powder, polymethylsilsesquioxane powder, polyurethane powder, wool powder, silk powder, and N-acyl lysine, and composite powders such as fine particles of titanium oxide-coated mica titanium, fine particles of zinc oxide-coated mica titanium, barium sulfate-coated mica titanium, titanium oxide-containing silica, and zinc oxide-containing silica. One or more of these can be used. Surface-treated versions of these can also be used. Surface treatment agents that are commonly known can be used, such as fluorine compounds, silicone compounds, hydrocarbons, higher fatty acids, higher alcohols, metal soaps, surfactants, and water-soluble polymers.

The easily disintegrating granulated composition of the present invention, when further used in combination with component (B) an oil, has the effect of imparting shape retention and a smooth feel when used. Component (B) in the present invention is not particularly limited as long as it is an oil that is commonly used in cosmetics, and examples thereof include hydrocarbons, oils and fats, waxes, hardened oils, ester oils, fatty acids, higher alcohols, silicone oils, fluorine-based oils, lanolin derivatives, oil-based gelling agents, oil-soluble resins, etc., regardless of their origin (such as animal oils, vegetable oils, synthetic oils, etc.) and their properties (such as solid oils, semi-solid oils, liquid oils, etc.).

Specific examples of such waxes include ethylene homopolymer, (ethylene/propylene) copolymer, paraffin wax, ceresin wax, ozokerite, microcrystalline wax, Fischer-Tropsch wax, liquid paraffin, petrolatum, squalane, squalene, isododecane, isohexadecane, polyisobutylene, polybutene and other hydrocarbon oils, stearic acid, lauric acid, myristic acid, behenic acid, isostearic acid, oleic acid and other fatty acids, stearyl alcohol, cetyl alcohol, lauryl alcohol, oleyl alcohol, isostearyl alcohol, behenyl alcohol and other higher alcohols, candelilla wax, beeswax, rice wax, Japan wax, Japanese wax, montan wax, carnauba wax, isopropyl palmitate, isopropyl myristate, stearyl isopropyl stearate, isobutyl stearate, 2-ethylhexyl stearate, isopropyl isostearate, butyl isostearate, decyl isostearate, lauryl isostearate, isodecyl isodecanoate, isodecyl isononanoate, isotridecyl isononanoate, isononyl isononanoate, diisostearyl malate, neopentyl glycol dioctanoate, propylene glycol dicaprate, propylene glycol dicaprylate, glyceryl tri-2-ethylhexanoate, polyglyceryl monoisostearate, polyglyceryl diisostearate, diglyceryl triisostearate, diglyceryl tetraisostearate, diethyl sebacate, cetyl 2-ethylhexanoate, ethylhexyl palmitate, octyldodecyl myristate, oleyl oleate, ethyl oleate , N-lauroyl-glutamic acid di(phytosteryl/2-octyldodecyl), N-lauroyl-glutamic acid di(phytosteryl/behenyl/2-octyldodecyl), N-lauroyl-glutamic acid di(cholesteryl/2-octyldodecyl), N-lauroyl-glutamic acid di(cholesteryl/behenyl/2-octyldodecyl), N-lauroyl-sarcosine-isopropyl, dimer dilinoleic acid di(phytosteryl/isostearyl/cetyl/stearyl/behenyl), dimer dilinoleic acid di(isostearyl/phytosteryl), dimer dilinoleic acid dilinoleyl, diisostearate dimer dilinoleyl, adipate diglyceryl mixed fatty acid ester, rosin acid pentaerythritol, lanolin, lanoline fatty acid isopropyl, lanoline fatty acid octyldodecyl, hydrogenated castor oil, water Examples of such oils include ester oils such as hydrogenated castor oil fatty acid esters, macadamia nut oil fatty acid phytosteryl, and hydrogenated jojoba oil; silicone oils such as trimethylsiloxysilicate, methacryl-modified polysiloxane, stearyl-modified methylpolysiloxane, oleyl-modified methylpolysiloxane, behenyl-modified methylpolysiloxane, polyvinylpyrrolidone-modified methylpolysiloxane, highly polymerized dimethylpolysiloxane, alkoxy-modified polysiloxane, and crosslinked organopolysiloxane; oil-based gelling agents such as dextrin fatty acid esters, fructooligosaccharide fatty acid esters, sucrose fatty acid esters, 12-hydroxystearic acid, starch fatty acid esters, aluminum isostearate, and calcium stearate; and α-olefin-vinylpyrrolidone copolymers. One or more of these may be used as necessary.

The content of component (B) in the present invention is not particularly limited, but from the viewpoint of shape retention and smooth feel when used, it is preferably 0.1 to 20%, and more preferably 1 to 12%.

The easily disintegrating granulated composition of the present invention can improve its shape retention by further combining component (C) talc having an average particle size of 1 to 20 μm. Component (C) used in the present invention can be any talc normally used in cosmetics, without any particular limitations in terms of shape such as spherical, plate-like, or needle-like, or particle structure such as porous or non-porous. Surface-treated versions of these can also be used. Surface treatment agents that can be used include commonly known surface treatment agents such as fluorine compounds, silicone compounds, hydrocarbons, higher fatty acids, higher alcohols, metal soaps, surfactants, and water-soluble polymers. Commercially available products include High Filler K-5 (average particle size 5 μm), Crown Talc PP (average particle size 8 μm) (both manufactured by Muramatsu Sangyo Co., Ltd.), Talc JA-46R (average particle size 5 to 7 μm), and Talc JA-68R (average particle size 9 to 12 μm) (both manufactured by Asada Flour Milling Co., Ltd.). The average particle size can be measured using a laser diffraction particle size distribution analyzer (model number: SALD-2300) manufactured by Shimadzu Corporation.

The content of component (C) in the present invention is not particularly limited, but from the viewpoint of shape retention, it is preferably 20 to 60%, and more preferably 25 to 50%.

The easily disintegrating granulated composition of the present invention can be applied to cosmetics. Examples of the form of cosmetics include makeup cosmetics and skin care cosmetics, and various product forms can be used depending on the purpose. More specifically, examples include powder cosmetics such as foundation, blusher, face powder, eyeshadow, eyeliner, eyebrow, face powder, and body powder. In addition, by mixing two or more types of easily disintegrating granulated compositions with different colors and usability, it is possible to create colorful and gorgeous cosmetics, and solid powder cosmetics that have clear boundaries and provide high aesthetics when compressed and molded are preferable.

The method for producing the easily disintegrating granulated composition of the present invention is not particularly limited, and for example, the easily disintegrating granulated composition can be obtained by mixing the component (A) dispersed in water with the components (B) to (C) and other components as necessary using a conventional method, pulverizing and granulating the mixture using a granulator or the like, and drying the mixture using a dryer or the like to remove the water. Dispersing the component (A) in water is preferable in that the dispersibility of the component (A) in the easily disintegrating granulated composition is improved and shape retention is obtained. Examples of the granulation method include an agitation granulation method using a super mixer or the like, an extrusion granulation method using a granulator or the like, and a spray drying method (spray drying method). Examples of the equipment used for granulation include a super mixer (SMP-2/manufactured by Kawata Co., Ltd.) and a disk atomizer (spray dryer SD12 type/manufactured by Mitsui Mining Co., Ltd.). When obtaining an easily disintegrating granulated composition with a large particle size, the agitation granulation method is preferred, and when obtaining an easily disintegrating granulated composition with a small particle size, the fluidized bed granulation method is preferred. Furthermore, in granulation and grinding, the easily disintegrating granulated composition can be adjusted to the desired particle size by selecting the screen size according to the desired particle size. Any of these granulation methods can be selected according to the desired particle size.

The easily disintegrating granulated composition of the present invention is preferably obtained by dispersing component (A) in water, mixing with a powder or the like, granulating the composition, and then removing the water by vacuum suction, drying, or the like. In addition, it is difficult to directly identify the substance described in claim 5 by its structure or characteristics, and it is impractical to evaluate whether the effects of the present invention are achieved for all easily disintegrating granulated compositions containing component (A) because an unrealistic amount of the easily disintegrating granulated composition must be evaluated, which involves excessive economic expenditure.

The method for producing a solid powder cosmetic using the easily disintegrating granulated composition of the present invention is not particularly limited, and examples thereof include a method in which one or more types of easily disintegrating granulated compositions are filled into a container and then compression molded. It is also preferable to use a combination of two or more types of easily disintegrating granulated compositions with different colors and usability, and from the viewpoint of increasing aesthetic appeal by having each color interspersed, it is preferable to mix them in advance before filling the container.

In addition to the above components (A) to (C), the easily disintegrating granulated composition of the present invention may contain components commonly used in cosmetics, such as aqueous components, surfactants, UV absorbers, moisturizers, antioxidants, cosmetic ingredients, sugars, preservatives, and fragrances, as long as the effects of the present invention are not impaired.

The aqueous component may be any component that is soluble in water, and examples of the aqueous component include lower alcohols such as ethyl alcohol and propyl alcohol, glycols such as propylene glycol, 1,3-butylene glycol, dipropylene glycol, 1,2-pentanediol, and polyethylene glycol, glycerols such as glycerin, diglycerin, and polyglycerin, and plant extracts such as aloe vera, witch hazel, hamamelis, cucumber, lemon, lavender, and rose. Examples of water-soluble polymers include methylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, Examples of such materials include cellulose derivatives such as hydroxypropyl cellulose, hydroxypropyl methyl cellulose, and carboxymethyl cellulose; natural polymers such as sodium alginate, carrageenan, quince seed gum, agar, gelatin, xanthan gum, locust bean gum, pectin, and gellan gum; and synthetic polymers such as polyvinyl alcohol, carboxyvinyl polymer, alkyl-added carboxyvinyl polymer, sodium polyacrylate, sodium polymethacrylate, polyacrylic acid glycerin ester, and polyvinylpyrrolidone. One or more of these may be used.

The surfactant may be any surfactant commonly used in cosmetics, including nonionic surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants, etc. For example, nonionic surfactants include glycerin fatty acid esters and their alkylene glycol adducts, polyglycerin fatty acid esters and their alkylene glycol adducts, propylene glycol fatty acid esters and their alkylene glycol adducts, sorbitan fatty acid esters and their alkylene glycol adducts, sorbitol fatty acid esters and their alkylene glycol adducts, polyalkylene glycol fatty acid esters, sucrose fatty acid esters, glycerin alkyl ethers, polyoxyalkylene alkyl ethers, polyoxyethylene alkylphenyl ethers, polyoxyethylene hydrogenated castor oil, and alkylene glycol adducts of lanolin. Examples of anionic surfactants include inorganic and organic salts of fatty acids such as stearic acid and lauric acid, alkylbenzene sulfates, alkyl sulfonates, α-olefin sulfonates, dialkyl sulfosuccinates, α-sulfonated fatty acid salts, acylmethyl taurine salts, N-methyl-N-alkyl taurine salts, polyoxyethylene alkyl ether sulfates, polyoxyethylene alkyl phenyl ether sulfates, alkyl phosphates, polyoxyethylene alkyl ether phosphates, polyoxyethylene alkyl phenyl ether phosphates, N-acyl amino acid salts, N-acyl-N-alkyl amino acid salts, o-alkyl substituted malates, and alkyl sulfosuccinates. Examples of cationic surfactants include alkyl trimethyl ammonium chloride, dialkyl dimethyl ammonium chloride, and benzalkonium chloride salts. Examples of amphoteric surfactants include amino acid type and betaine type carboxylic acid type, sulfate ester type, sulfonic acid type, and phosphate ester type, and these can be used alone or in combination.

The ultraviolet absorbing agent may be any of those normally used in cosmetics. For example, benzophenone-based agents include 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid, sodium 2-hydroxy-4-methoxybenzophenone-5-sulfonate, 2,2'-dihydroxy-4,4'-dimethoxybenzophenone, and sodium 2,2'-dihydroxy-4,4'-dimethoxybenzophenone-5-sulfonate. 2,4-dihydroxybenzophenone, 2,2',4,4'-tetrahydroxybenzophenone, 2,4,6-trianilino-para-(carbo-2'-ethylhexyl-1'-oxy)-1,3,5-triazine, 2,4-bis[{4-(2-ethylhexyloxy)-2-hydroxy}-phenyl]-6-(4-methoxyphenyl)-(1,3,5)-triazine, 2-2'-methylene-bis-{6-(2H-benzotriazol-2-yl)-4-(1,1,3 Examples of PABA-based compounds include p-aminobenzoic acid, ethyl p-aminobenzoate, glyceryl p-aminobenzoate, amyl p-dimethylaminobenzoate, 2-ethylhexyl p-dimethylaminobenzoate, ethyl p-dihydroxypropylbenzoate, and 2-{4-(diethylamino)-2-hydroxybenzoyl}hexyl benzoate. Examples of cinnamic acid-based compounds include 2-ethylhexyl p-methoxycinnamate, 4-methylphenyl benzoate, and 2-methylphenyl benzoate. Examples of the salicylic acid type include 2-ethylhexyl salicylate, phenyl salicylate, homomenthyl salicylate, etc., and examples of the dibenzoylmethane type include 4-tert-4'-methoxydibenzoylmethane, etc., and 2-2'-methylene-bis-{6-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol}, etc., and these can be used alone or in combination.

Examples of moisturizing agents include proteins, mucopolysaccharides, collagen, elastin, keratin, etc.; examples of antioxidants include α-tocopherol, ascorbic acid, etc.; examples of beauty ingredients include vitamins, anti-inflammatory agents, herbal medicines, etc.; examples of preservatives include paraoxybenzoic acid esters, phenoxyethanol, etc.

The present invention will be described in more detail below with reference to the following examples. Note that the present invention is not limited to these examples.

Examples 1 to 6 and Comparative Examples 1 to 8: Easily disintegrating granulated compositions Examples 7 to 9 and Comparative Examples 9 to 12: Eye shadows Easily disintegrating granulated compositions shown in Tables 1 and 2 were prepared, and evaluated and judged for A. shape retention and B. lack of roughness using the following evaluation methods. In addition, eye shadows shown in Table 3 were prepared by combining the easily disintegrating granulated compositions shown in Tables 1 and 2, and evaluated and judged for C. clarity of boundary and D. smooth feel in use using the following evaluation methods. The results are also shown in Tables 1 and 2 for A and B, and in Table 3 for C and D.

*1: COLORONA MICA BLACK (Merck)
*2: FLAMENCO SPARKLE GOLD 220J (manufactured by BASF)
*3: LeoCrysta C-2SP (manufactured by Daiichi Kogyo Seiyaku Co., Ltd.)
*4: Ceolas PH F20JP (manufactured by Asahi Kasei Chemicals) dispersed in water *5: KC Flock W-100G (manufactured by Nippon Paper Chemicals) dispersed in water

(Production method)
A. Mix ingredients (1) to (5) uniformly.
B. Dissolve ingredients (6) to (9) uniformly at 50° C., add to A and disperse uniformly.
C. Disperse components (10) to (13) in 20 parts by mass of purified water.
D. Add C to B and granulate in a super mixer, then pulverize in a speed mill (screen diameter 2 mm).
E. After drying at 50° C. for 8 hours, an easily disintegrating granulated composition having an average particle size of 2 mm was obtained.

*6: FLAMENCO RED 420C (manufactured by BASF)

(Production method)
A. Mix ingredients (1) to (4) uniformly.
B. Dissolve ingredients (5) to (8) uniformly at 50° C., add to A and disperse uniformly.
C. Disperse components (9) to (12) in 20 parts by weight of purified water.
D. Add C to B and granulate in a super mixer, then pulverize in a speed mill (screen diameter 2 mm).
E. After drying at 50° C. for 8 hours, an easily disintegrating granulated composition having an average particle size of 2 mm was obtained.

(Production method)
A. Mix ingredients (1) to (14) uniformly and place in a metal dish.
B. A was compression molded to obtain an eye shadow.

<Evaluation method>
A. Shape retention: 3 g of each of Examples 1 to 6 and Comparative Examples 1 to 8 was placed in a centrifuge tube, and each sample was shaken for 10 minutes with a stroke width of 80 mm and 180 reciprocations per minute using a shaker (YS-8D manufactured by Yayoi Co., Ltd.). The samples were then passed through a 600 μm mesh, the weight of the samples that did not pass through was measured, the remaining rate was calculated, and the shape retention was evaluated according to the following criteria. The remaining rate was calculated by using the weight of the samples that did not pass through the 600 μm mesh as the numerator and the amount of the sample charged as the denominator.
(Judgment criteria)
(Judgment): (Survival rate)
◎: 70% or more 〇: 50% or more but less than 70% △: 30% or more but less than 50% ×: Less than 30%

B. Non-roughness A panel of 20 cosmetic evaluation experts was asked to use Examples 1 to 6 and Comparative Examples 1 to 8 and evaluate the non-roughness of the easily disintegrating granulated compositions when they were applied to the skin. Each person gave a score on a four-point scale according to the following evaluation criteria, and the average score of all the panelists was judged according to the following judgment criteria.
(Evaluation Criteria)
(Score): (Evaluation)
4: Very good 3: Good 2: Poor 1: Very bad (criteria)
(Judgment): (Average score)
◎: 3 points or more ○: 2.5 points or more but less than 3 points △: 1 point or more but less than 2.5 points ×: Less than 1 point

C. Clarity of Boundary For Examples 7 to 9 and Comparative Examples 9 to 12, an evaluation was made as to whether the readily disintegrating granulated compositions were not mixed with each other and whether the boundaries between the colors were clearly visible, and the clarity of the boundaries was judged according to the following criteria.
(Judgment criteria)
(judgement)
: The boundary is clear. ◯: Color mixing is observed, but the boundary is clear. ×: Color mixing occurs, resulting in an intermediate color of each color, and the boundary is unclear. 2. Smooth feeling of use Twenty members of a cosmetics evaluation panel were asked to use Examples 7 to 9 and Comparative Examples 9 to 12, and each member gave a four-level rating according to the following evaluation criteria, and the average score of the scores of all the panels was judged according to the following evaluation criteria.
(Evaluation Criteria)
(Score): (Evaluation)
4: Very good 3: Good 2: Poor 1: Very bad (criteria)
(Judgment): (Average score)
◎: 3 points or more ○: 2.5 points or more but less than 3 points △: 1 point or more but less than 2.5 points ×: Less than 1 point

As is clear from the results in Tables 1 and 2, Examples 1 to 6 of the present invention were superior to the Comparative Examples in all items including shape retention and lack of roughness. Also, Examples 7 and 8 were superior to the Comparative Examples in all items including boundary clarity and smooth feel.
In contrast, in Comparative Examples 1 and 5, which do not contain component (A) cellulose fiber, the products were moldable, but were weak to external stimuli and had poor shape retention. In Comparative Examples 2, 3, 6, and 7, which used crystalline cellulose or cellulose powder with a large number average fiber diameter, the large fiber diameter caused roughness, and the effect as an excipient was low, resulting in poor shape retention. In Comparative Examples 4 and 8, which used xanthan gum, the products had poor shape retention.

As is clear from the results in Table 3, the eye shadows of Examples 7 to 9 were superior to the comparative examples in all aspects, including clarity of boundary and smooth feel in use.
On the other hand, in Comparative Example 9, the colors mixed when mixed, and the clarity of the boundary was poor. In Comparative Examples 10 and 11, the colors mixed when mixed, the clarity of the boundary was poor, and the smooth feel was also poor. In Comparative Example 12, the shape retention of the granulated composition was low, and the clarity of the boundary was poor.

Example 10 Easily disintegrating granulated composition (ingredients) (parts)
1. Mica 29
2. Talc (average particle size 12 μm) 25
3. Synthetic gold mica 10
4. Boron nitride 8
5. Spherical nylon 2
6. Spherical polymethyl methacrylate 2
7. Titanium oxide 1.7
8. Silica 1
9. Bengala 0.1
10. (Dimethicone/vinyl dimethicone) crosspolymer 0.6
11. Stearyl dimethicone 1
12. Dimethylpolysiloxane (20 ^mm2 /s, 25°C) 7.6
13. Liquid Paraffin 6
14. Synthetic wax 3
15. Glyceryl tri-2-ethylhexanoate 2
16. Cellulose fiber (number average fiber diameter 15 nm) (2%) water dispersion 10

(Production method)
A. Mix ingredients (1) to (10) uniformly.
B. Dissolve ingredients (11) to (15) uniformly at 70° C., add to A and mix uniformly.
C. Dissolve component (16) in 20 parts by mass of purified water, mix and disperse uniformly, add to B, and mix and disperse uniformly.
D.C was granulated to 10 mm at 300 rpm using a super mixer, and dried at 40° C. for 10 hours to obtain an easily disintegrating granulated composition.

The resulting easily disintegrating granulated composition had excellent shape retention and was excellent in all aspects, including lack of roughness.

Example 11 Blush (ingredients) (%)
1. Easily disintegrating granulated composition of Example 10 50
2. Easily disintegrating granulated composition of Example 2 50

(Production method)
A. (1) and (2) are mixed in advance and poured into a resin dish.
B. A was compression molded to obtain a blusher.

The resulting blush was excellent in all areas, including clarity of borders and smooth feel when used.

Example 12 Easily disintegrating granulated composition (ingredients) (parts)
1. Talc (average particle size 5 μm) 40
2. Mica 20
3. Mica titanium *6 30
4. Gunjo 0.4
5. Dimethylpolysiloxane (100 ^mm2 /s, 25°C) 4
6. Liquid Paraffin 4
7. Vaseline 0.8
8. Squalane 0.8
9. Cellulose fiber (2%) water dispersion *3 3

(Production method)
A. Mix ingredients (1) to (4) uniformly.
B. Add ingredients (5) to (8) uniformly dissolved at 50° C. to A and mix uniformly.
C. Dissolve component (9) in 20 parts by weight of purified water, add to B, and granulate using a super mixer.
D. C was pulverized in a speed mill (screen diameter 2 mm) and dried at 50° C. for 8 hours to obtain an easily disintegrating granulated composition having an average particle diameter of 2 mm.

The resulting easily disintegrating granulated composition had excellent shape retention and was free of roughness.

Example 13 Body Powder (Components) (%)
1. Mica remaining 2. Talc (average particle size 5 μm) 20
3. Lauroyl Lysine 9
4. (Vinyl dimethicone/methicone silsesquioxane) crosspolymer 9
5. Spherical nylon 4
6. Methyl methacrylate crosspolymer 3.5
7. Ethylhexyl methoxycinnamate 2
8. Boron nitride 1
9. Titanium oxide 2
10. Zinc oxide 3.5
11. Synthetic phlogopite 10
12. Yellow iron oxide 0.1
13. Black iron oxide 0.1
14. Dimethylpolysiloxane (100 ^mm2 /s, 25°C) 0.2
15. Vaseline 0.3
16. Squalane 0.3
17. Easily disintegrating granulated composition of Example 12 25

(Production method)
A. Mix ingredients (1) to (13) uniformly.
B. Add ingredients (14) to (16) uniformly dissolved at 50° C. in A and mix uniformly.
C. Component (17) was added to B and mixed uniformly to obtain a body powder.

The resulting body powder was excellent in all aspects, including smooth feel when used.

Claims (7)

A granulation composition comprising component (A) cellulose fibers having a number average fiber diameter of 2 to 150 nm, component (B) an oil solution , and component (C) 20 to 50% talc having an average particle size of 1 to 20 μm . The granulation composition according to claim 1, containing 0.01 to 1% by mass of component (A). A cosmetic preparation comprising the granulated composition according to claim 1 or 2 . 4. The cosmetic according to claim 3 , which is a powder cosmetic. 5. The powder cosmetic according to claim 4 , which is a solid powder cosmetic. A method for producing a granulated composition, comprising granulating component (A) an aqueous dispersion of cellulose fibers having a number average fiber diameter of 2 to 150 nm, component (B) an oil agent, and component (C) talc having an average particle size of 1 to 20 μm , and drying the granulated composition to remove water, wherein the content of component (C) in the granulated composition is 20 to 50% . A method for producing a granulated composition comprising the steps of: dispersing component (A) cellulose fibers having a number average fiber diameter of 2 to 150 nm in water; mixing and granulating the aqueous dispersion of component (A), component (B) an oil agent, and component (C) talc having an average particle size of 1 to 20 μm ; and drying to remove water to obtain a granulated composition, wherein the content of component (C) in the granulated composition is 20 to 50% .