KR20100047799A - Plate-like brown pigment - Google Patents

Abstract

PURPOSE: A plate-type brown pigment and a cosmetic material containing thereof is provided to improve protecting effect for the skin of a user from ultraviolet light, the polishing ability, and to prevent color changes by wetting. CONSTITUTION: A plate-type brown pigment has a structure marked as the chemical formula: K_(3x+y)Li_xTi_(2-x-y)Fe_yO_4. X and Y in the formula is in the range of 0.2<=x<=0.3, 0.05<=y<=0.5, respectively. The average thickness of the pigment is 0.1~1 microns. The average large diameter of the pigment is 10~100 microns. A cosmetic material and a powder cosmetic material contain the plate-type brown pigment.

Description

Plate-like brown pigment

The present invention relates to a plate-like brown pigment and a cosmetic containing the same.

Various coloring pigments are used for cosmetics. For example, plate-shaped barium sulfate coated with iron oxide having no slippage and good slipperiness (Patent Document 1: Japanese Patent Laid-Open No. 2000-265154), excellent ultraviolet shielding effect, and electrodeposition property Particles incorporating and compounding a metal compound excellent in exhibition property, orientation, and concealability with low crystalline silica (Patent Document 2: Japanese Patent Application Laid-open No. Hei 11-11927), color tone at the time of use A colorant surface-treated with a fluorine compound that can maintain the vividness of color without the dullness and the like (Patent Document 3: Japanese Patent Application Laid-Open No. 3-246210), improving the prevention of color separation of white and colored pigments. Iron containing titanium dioxide (patent document 4: Unexamined-Japanese-Patent No. 7-69636) etc. are used.

On the other hand, the inventors, etc., continue to carry out research and development on the lepidocrocite-type plate-like titanic acid, and the patent document 5 as a lepidocrocite-type plate-like titanic acid having excellent ultraviolet shielding effect and good slipperiness. (Japanese Patent Laid-Open No. 2006-316107) and Patent Document 6 (Japanese Patent Laid-Open No. 2008-162971) have been proposed as a bright pigment. Moreover, patent document 7, 8 (Japanese Patent No. 3062497 and Japanese Patent No. 4091337) is known as a manufacturing method. The application as a coloring pigment is not made about the lepidocrocite plate-like titanic acid.

[Patent Document 1] Japanese Unexamined Patent Publication No. 2000-265154

[Patent Document 2] Japanese Patent Application Laid-Open No. 11-11927

[Patent Document 3] Japanese Patent Application Laid-Open No. 3-246210

[Patent Document 4] Japanese Patent Application Laid-Open No. 7-69636

[Patent Document 5] Japanese Patent Publication No. 2006-316107

[Patent Document 6] Japanese Patent Publication No. 2008-162971

[Patent Document 7] Japanese Patent No. 3062497

[Patent Document 8] Japanese Patent No. 4091337

It is an object to provide a pigment using a lepidocrocite plate-like titanic acid and a cosmetic containing the same.

MEANS TO SOLVE THE PROBLEM In order to solve the said subject, this invention is equipped with the following structures.

(1) A plate-like brown pigment of the formula K _{3x + y} Li _x Ti _{2 -x- y} Fe _y O ₄ (0.2≤x≤0.3, 0.05≤y≤0.5).

(2) The plate-like brown pigment according to (1), wherein the color tone is a * = 4 to 15 and b * = 15 to 26 in an L * a * b * color system.

(3) The plate-shaped brown pigment as described in (1) or (2) whose average thickness of particle | grains is 0.1 micrometer-1 micrometer, and average long diameter is 10 micrometers-100 micrometers.

(4) Cosmetics containing the plate-like brown pigment as described in any one of (1)-(3).

(5) Powder cosmetics containing the plate-like brown pigment as described in any one of (1)-(3).

The pigment using the lepidocrocite-type plate titanic acid which has the ultraviolet-ray shielding effect, is excellent in slipperiness | lubricacy, is excellent in glossiness, and has little change in the color tone by wetness can be achieved. And the cosmetics containing it can be provided. The color is brown.

The pigment of the present invention is a plate-like brown in which the repidocrosite-type plate titanic acid crystal particles of the general formula K _{3x + y} Li _x Ti _2-xy Fe _y O ₄ (0.2≤x≤0.3, 0.05≤y≤0.5) are useful. Pigments. A colored pigment whose a * = 4-15 and b * = 15-26 can be provided in a L * a * b * color system. 0.1 micrometer-1 micrometer of average thickness, and 10 micrometers-100 micrometers of average long diameters are smooth and can exhibit the outstanding slipperiness | lubricacy.

Such a pigment is excellent as a pigment for cosmetics and is suitable as a powder cosmetic since it has good ultraviolet shielding property, little color change by wetness, and good skin coating performance. It is suitable to mix | blend as a coloring pigment which shows normal skin color.

The plate-like brown pigment of the present invention is a lepidocrocite-type plate-shaped titanic acid crystal grain, and is represented by the following formula. K _{3x + y} Li _x Ti _2-xy Fe _y O ₄ , provided 0.2 ≦ _x ≦ 0.3, 0.05 ≦ _y ≦ 0.5.

It is preferable that the plate-shaped brown pigment of this invention is light brown to dark brown, and a hue is a * = 4-15 and b * = 15-26 in L * a * b * color system.

It is preferable that the plate-shaped brown pigment of this invention is 0.1 micrometer-1 micrometer in average thickness, and 10 micrometer-100 micrometers in average long diameter.

The diameter of the plate-shaped brown pigment of the present invention is measured by the following method. By scanning electron microscope observation, the average value of the longest part and the longest average value in the thickness direction of the particle | grains were made into the average thickness in the plate-shaped surface of the particle | grains.

The plate-like brown pigment of the present invention is mixed with, for example, K ₂ MoO ₄ , NaCl, KCl, etc. as a main raw material such as K ₂ CO ₃ , Li ₂ CO ₃ , TiO ₂ , FeCl ₂ , and the flux at a predetermined ratio. After the reaction at 900 ° C to 1100 ° C for several hours, the flux component may be washed and obtained. However, in order to form particles having a more stable shape, KCl is preferably used as the flux.

The plate-like brown pigment of the present invention has a general emulsion treatment, a metal soap treatment, a silicon compound treatment, an alkyl phosphate treatment, a perfluoroalkyl group in order to improve affinity to an oil or water, or to impart water resistance and oil resistance to a cosmetic. You may use after surface treatment, such as a compound treatment which has a compound, an amino acid treatment, a lecithin treatment, and a collagen treatment.

The cosmetics of the present invention include polymers such as fats and oils such as vegetable oils, higher fatty acids, higher alcohols, silicones, anionic surfactants, cationic surfactants, amphoteric surfactants, nonionic surfactants, preservatives, sugars, metal ion blocking agents, and water-soluble polymers. , Thickeners, powder components, ultraviolet absorbers, sunscreens, moisturizers such as hyaluronic acid, fragrances, pH adjusters and the like. It is also possible to contain other active ingredients such as vitamins, skin activators, blood stimulators, fungus control agents, active oxygen scavengers, anti-inflammatory agents, whitening agents, fungicides, and physiologically active ingredients.

As fats and oils, For example, liquid oils, such as camellia oil, evening primrose oil, macadamia nut oil, olive oil, rapeseed oil, corn oil, sesame oil, jojoba oil, germ oil, wheat germ oil, and triglycerol acid triglyceride, Solid oils such as palm oil, hardened palm oil, palm oil, palm kernel oil, wax, wax core oil, hardened oil, hardened castor oil, beeswax, candelilla wax, cotton wax, rice bran wax, lanolin, lanolin acetate, liquid lanolin, sugar cane wax Waxes are mentioned. Examples of the hydrocarbons include liquid paraffin, squalene, squalane, microcrystalline wax, and the like.

Examples of higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, docosahexaenoic acid (DHA), eicosapentaenoic acid (EPA), and the like. have.

As the higher alcohol, for example, straight chain alcohols such as lauryl alcohol, stearyl alcohol, cetyl alcohol, cetostearyl alcohol, monostearyl glycerin ether, lanolin alcohol, branched chain alcohols such as cholesterol, phytosterol and octyldodecanol Etc. can be mentioned.

As silicone, decamethyl cyclopentasiloxane of cyclic polysiloxane, etc. are mentioned, for example, dimethyl polysiloxane of linear polysiloxane, and methylphenyl polysiloxane.

As an anionic surfactant, For example, fatty acid salts, such as sodium laurate, higher alkyl sulfate ester salts, such as sodium lauryl sulfate, alkyl ether sulfate ester salts, such as POE lauryl sulfate triethanolamine, N-acylsulfonic acid, and sulfo Succinate, N-acylamino acid salt, etc. are mentioned.

As a cationic surfactant, alkyltrimethylammonium salts, such as stearyl trimethylammonium chloride, benzalkonium chloride, benzetonium chloride, etc. are mentioned, for example.

As amphoteric surfactant, betaine-type surfactant, such as alkylbetaine and amidobetaine, etc. are mentioned, for example.

As a nonionic surfactant, sorbitan fatty acid esters, such as sorbitan monooleate, a hardened castor oil derivative, etc. are mentioned, for example.

As a preservative, methyl paraben, ethyl paraben, etc. are mentioned, for example.

As a metal ion blocking agent, edetate salts, such as ethylenediamine disodium tetraacetate, edetic acid, a sodium edate salt, are mentioned, for example.

As the polymer, for example, gum arabic, tragacanth gum, galactan, guar gum, carrageenan, pectin, agar, queen's seed, dextran, pullulan, carboxymethyl starch, collagen, casein, gelatin, methylcellulose, methylhydride And vinyl polymers such as hydroxypropyl cellulose, hydroxyethyl cellulose, sodium carboxymethyl cellulose (CMC), sodium alginate, and carboxyvinyl polymer (such as CARBOPOL).

Examples of the thickener include carrageenan, tragacanth gum, queen's seed, casein, dextrin, gelatin, CMC, hydroxyethyl cellulose, hydroxypropyl cellulose, guar gum, xanthan gum and bentonite.

As the powder component, for example, talc, kaolin, mica, silica, zeolite, polyethylene powder, polystyrene powder, cellulose powder, inorganic white pigment, inorganic red pigment, titanium oxide coated mica, titanium oxide coated talc, colored titanium oxide Pearl pigments, such as a coated mica, Organic pigments, such as red 201 and red 202, are mentioned.

As a ultraviolet absorber, paraamino benzoic acid, phenyl salicylate, isopropyl paramethoxy cinnamic acid, octyl paramethoxy cinnamic acid, 2, 4- dihydroxy benzophenone, etc. are mentioned, for example.

As a sunscreen agent, titanium oxide, talc, carmine, bentonite, kaolin, zinc oxide, etc. are mentioned, for example.

As the humectant, for example, polyethylene glycol, propylene glycol, dipropylene glycol, 1,3-butylene glycol, 1,2-pentanediol, glycerin, diglycerin, polyglycerine, xylitol, maltitol, maltose, sorbitol, Glucose, fructose, sodium chondroitin sulfate, sodium hyaluronate, sodium lactate, pyrrolidone carboxylic acid, cyclodextrin, etc. are mentioned.

Examples of the active ingredient include vitamin A oils such as vitamin A oil and retinol, vitamin B ₂ such as riboflavin, B ₆ such as pyridoxine hydrochloride, L-ascorbic acid, L-ascorbic acid phosphate ester and L-ascorb. Vitamin C such as acid monopalmitic acid ester, L-ascorbic acid dipalmitate, L-ascorbic acid-2-glucoside, pantothenic acid such as calcium pantothenate, vitamin D ₂ such as vitamin D ₂ and cholecalciferol And vitamins such as vitamin E, such as α-tocopherol, tocopherol acetate, and nicotinic acid DL-α-tocopherol.

Whitening agents such as placenta extract, glutathione and panaxanthus extract, skin activators such as royal jelly and beech extract, blood stimulants such as capsaicin, gingeron, canthalistine, iktamol, caffeine, tannic acid, γ-orizanol, and glycyrrhizin derivatives And anti-inflammatory agents such as glycyrrhetinic acid derivatives and azulene, amino acids such as arginine, serine, leucine and tryptophan, maltose sucrose condensates of the fungus control agent, and lysozyme chloride.

In addition, chamomile extract, parsley extract, wine yeast extract, grapefruit extract, honeysuckle extract, rice extract, grape extract, hop extract, rice bran extract, loquat extract, rhubarb extract, oyster extract, barberry extract, melilot extract, birch Extract, Licorice Extract, Peony Extract, Soap Extract, Scrubber Extract, Pepper Extract, Lemon Extract, Gentian Extract, Perilla Extract, Aloe Extract, Rosemary Extract, Sage Extract, Thyme Extract, Tea Extract, Seaweed Extract, Cucumber Extract, Clove Various extracts, such as extract, ginseng extract, horse chestnut extract, hamamelis extract, and mulberry extract, are mentioned.

Example

Example 1

TiO ₂ : 3.4054 g, Li ₂ CO ₃ : 0.24 g, K ₂ CO ₃ : 1.355 g, KCl: 5 g, FeCl ₂ · 4H ₂ O: 0.34 g were weighed, and the trigger was used. The mixture was mixed for about 10 minutes. It baked at 1000 degreeC for 5 hours, the baked material was put into 80 degreeC warm water, and it stirred for about 1 hour. The obtained powder was separated by filtration, and the powder was further stirred for about 15 minutes in warm water at 80 ° C. The powder was separated by filtration and dried at 150 ° C for 1 hour. The composition formula of the obtained plate-like brown pigments is _{K 0 .835 Li 0 .256 Ti 1} .677 Fe 0 .067 O 4.

[Example 2]

TiO ₂ : 6.81 g, Li ₂ CO ₃ : 0.48 g, K ₂ CO ₃ : 2.71 g, KCl: 11.388 g, Fe (No ₃ ) ₃ .9H ₂ O: 1.388 g, were weighed and used in a mortar to Mix for 30 minutes. It baked at 950 degreeC for 5 hours, the baked material was put into 80 degreeC warm water, and it stirred for about 3 hours. The obtained powder was separated by filtration and dried at 150 ° C. for 1 hour. The composition formula of the obtained plate-like brown pigments is _{K 0 .835 Li 0 .256 Ti 1} .677 Fe 0 .067 O 4.

Example 3

TiO ₂ : 6.81 g, Li ₂ CO ₃ : 0.48 g, K ₂ CO ₃ : 2.71 g, KCl: 11.388 g, Fe (No ₃ ) ₃ .9H ₂ O: 1.388 g, were weighed and used in a mortar to Mix for 30 minutes. It calcined at 1100 degreeC for 5 hours, the baked material was put into 80 degreeC warm water, and it stirred for about 3 hours. The obtained powder was separated by filtration and dried at 150 ° C. for 1 hour. The composition formula of the obtained plate-like brown pigments is _{K 0 .835 Li 0 .256 Ti 1} .677 Fe 0 .067 O 4.

Example 4

TiO ₂ : 3.405 g, Li ₂ CO ₃ : 0.24 g, K ₂ CO ₃ : 1.355 g, KCl: 5.6068 g, Fe (CH ₃ COCHCOCH ₃ ) ₃ : 0.6068 g was weighed, and used for the firing, about 30 minutes Mixed. It baked at 950 degreeC for 5 hours, the baked material was put into 80 degreeC warm water, and it stirred for about 3 hours. The obtained powder was separated by filtration and dried at 150 ° C. for 1 hour. The composition formula of the obtained plate-like brown pigments is _{K 0 .835 Li 0 .256 Ti 1} .677 Fe 0 .067 O 4.

Example 5

TiO ₂ : 3.405 g, Li ₂ CO ₃ : 0.24 g, K ₂ CO ₃ : 1.355 g, KCl: 5.6068 g, Fe (CH ₃ COCHCOCH ₃ ) ₃ : 0.6068 g was weighed, and used for the firing, about 30 minutes Mixed. It calcined at 1100 degreeC for 5 hours, the baked material was put into 80 degreeC warm water, and it stirred for about 3 hours. The obtained powder was separated by filtration and dried at 150 ° C. for 1 hour. The composition formula of the obtained plate-like brown pigments is _{K 0 .835 Li 0 .256 Ti 1} .677 Fe 0 .067 O 4.

Example 6

TiO ₂ : 3.405 g, Li ₂ CO ₃ : 0.24 g, K ₂ CO ₃ : 1.355 g, KCl: 6.7278 g, Fe (CH ₃ COCHCOCH ₃ ) ₃ : 1.7278 g was weighed, and the mortar was used for about 30 minutes. Mixed. It baked at 950 degreeC for 5 hours, the baked material was put into 80 degreeC warm water, and it stirred for about 1 hour. The obtained powder was separated by filtration and dried at 150 ° C. for 1 hour. The composition formula of the obtained plate-like brown pigments is _{K 0 .90 Li 0 .24 Ti 1} .58 Fe 0 .18 O 4.

Example 7

TiO ₂ : 3.405 g, Li ₂ CO ₃ : 0.24 g, K ₂ CO ₃ : 1.355 g, KCl: 9.1965 g, Fe (CH ₃ COCHCOCH ₃ ) ₃ : 4.1965 g was weighed, and the mortar was used for about 30 minutes. Mixed. It baked at 950 degreeC for 5 hours, the baked material was put into 80 degreeC warm water, and it stirred for about 1 hour. The obtained powder was separated by filtration and dried at 150 ° C. for 1 hour. The composition formula of the obtained plate-like brown pigments is _{K 1 .02 Li 0 .21 Ti 1} .40 Fe 0 .39 O 4.

Example 8

TiO ₂ : 136.2 g, Li ₂ CO ₃ : 9.6 g, K ₂ CO ₃ : 54.2 g, KCl: 215.8 g, Iron red oxide (α-Fe ₂ O ₃ , Pure content: 99.2% as Fe ₂ O ₃ ) ): 15.8 g was weighed, mixed for 20 minutes in a stirred mixer, and ground using a hammer mill. It baked at 950 degreeC for 3 hours, the baked material was put into 80 degreeC warm water, and it stirred for about 1 hour. The obtained powder was separated by filtration and dried at 130 ° C. for 12 hours. The composition formula of the obtained plate-like brown pigment is K _0.90 Li _0.24 Ti _1.58 Fe _0.18 O ₄ .

Example 9

TiO ₂ : 136.2 g, Li ₂ CO ₃ : 9.6 g, K ₂ CO ₃ : 54.2 g, KCl: 217.7 g, iron sulfate (α-FeOOH, pure content: 88.9% as Fe ₂ O ₃ ): 17.7 g was weighed The mixture was mixed for 20 minutes in a stirring mixer, and ground using a hammer mill. It baked at 950 degreeC for 3 hours, the baked material was put into 80 degreeC warm water, and it stirred for about 1 hour. The obtained powder was separated by filtration and dried at 130 ° C. for 12 hours. The composition formula of the obtained plate-like brown pigment is K _0.90 Li _0.24 Ti _1.58 Fe _0.18 O ₄ .

Example 10

TiO ₂ : 136.2 g, Li ₂ CO ₃ : 9.6 g, K ₂ CO ₃ : 54.2 g, KCl: 215.7 g, black iron oxide ((FeO) _x (Fe ₂ O ₃ ) _y , pure content: 99.8 as Fe ₂ O ₃ %): 15.7 g was weighed, mixed for 20 minutes in a stirring mixer, and ground using a hammer mill. It baked at 950 degreeC for 3 hours, the baked material was put into 80 degreeC warm water, and it stirred for about 1 hour. The obtained powder was separated by filtration and dried at 130 ° C. for 12 hours. The composition formula of the obtained plate-like brown pigment is K _0.90 Li _0.24 Ti _1.58 Fe _0.18 O ₄ .

Comparative Example 1 A plate-shaped titanic acid containing no iron

TiO ₂ : 5.675 g, Li ₂ CO ₃ : 0.40 g, K ₂ CO ₃ : 2.26 g, KCl: 8.35 g were weighed and mixed for about 30 minutes using a mortar. It baked at 1000 degreeC for 3 hours, the baked material was put into 80 degreeC warm water, and it stirred for about 1 hour. The obtained powder was separated by filtration and dried at 150 ° C. for 1 hour. The composition formula of the flaky titanic acid obtained is _{K 0 .81 Li 0 .27 Ti 1} .73 O 4.

Comparative Example 2 A Pigment Containing Chromium Instead of Iron

TiO ₂ : 3.4054 g, Li ₂ CO ₃ : 0.24 g, K ₂ CO ₃ : 1.355 g, KCl: 5 g, Cr (NO ₃ ) ₃ .9H ₂ O: 0.69 g, were weighed, and the mortar was used to weigh Mix for 10 minutes. It baked at 1000 degreeC for 5 hours, the baked material was put into 80 degreeC warm water, and it stirred for about 1 hour. The obtained powder was separated by filtration, and the powder was further stirred for about 15 minutes in warm water at 80 ° C. The powder was separated by filtration and dried at 150 ° C for 1 hour. The composition formula of the obtained pigment is K _0.835 Li _0.256 Ti _1.677 Cr _0.067 O ₄ .

As a result of confirming the average long diameter and average thickness of the plate-shaped brown pigment of Examples 1-10 by the scanning electron microscope observation, the average thickness of all was in the range of 0.1 micrometer-1 micrometer, and the average long diameter of 10 micrometers-100 micrometers.

Visual evaluation of color tone

The plate-like brown pigments of Examples 1 to 10 were pale brown to dark brown. On the other hand, the pigment containing chromium instead of the plate-like titanic acid of the comparative example 1 and iron of the comparative example 2 was white, and was unsuitable as a coloring pigment.

On the spectrophotometer  Color measurement

The color tone of the plate-shaped brown pigment of Examples 2 and 7 was measured with the spectrophotometer.

Device: Konica Minolta CM-2600d

Sample preparation method: 3 mm Scotch transparent off-white (adhesive tape) 24 mm x 35 m was cut out by 5 cm, and the plate-like brown pigments of Examples 2 and 7 were evenly brushed on the adhesive tape surface with brushed puffs. Applied.

Results: Table 1 shows the results.

SCI: with specular reflection, SCE: specular reflection

The ranges of a * and b * in Examples 2 and 7 are in the range of a * = 4 to 15 and b * = 15 to 26 when the value of the measurement mode SCI is the lower limit and the value of the measurement mode SCE is the upper limit. It was.

Sensory Evaluation of Smoothness

Sensory evaluation of the smoothness of Example 1 and Comparative Examples 1 and 2 was carried out.

The smoothness when the pigment was placed on the skin and the pigment was spread was evaluated by the following criteria.

(Circle): It is very smooth.

(Triangle | delta): Although it is smooth, it is a little blackish.

×: It is black.

The results are shown in Table 2.

Example 1 and Comparative Example 1 were smooth, but Comparative Example 2 was black. The scanning electron micrographs of Example 1 and Comparative Examples 1 and 2 are shown in FIGS. 1 and 2 are smooth plate crystals, but needles are included in FIG. 3, and as a result, the pigment of Comparative Example 2 is considered to be black.

Evaluation of Tone Change by Wetting

About the plate-like brown pigment of Examples 2 and 7, and the mixed pigment which made the color tone similar, the color tone before and behind soaking with squalane was measured, and the color tone change by wetness was measured.

First, the color tone of the pigment was measured by the method described in "measurement of color tone by spectrophotometer" (before wet).

Subsequently, squalane was dripped at the pigment, and dripping was stopped when fluidity appeared. Coloring was carried out in that state (after wet).

In addition, the measurement mode was set to "SCE".

Table 3 shows the measurement results of the mixed pigments having similar color hues as those of Example 2 and Example 2, and the results of the measurement of the mixed pigments having similar hues to Examples 7 and 7.

In Table 3 and Table 4, the component of a mixed pigment is as follows.

Talc: Asada Powder Talc JA-46R

Iron sulfate: titanium LL-XLO

Bengala: T-Industrial R-516-L

Sulfuric acid Ba: Plate-like barium sulfate H-LF made by Sakai Chemical Co., Ltd.

Black oxide: titanium BL-100

As shown in Table 3 and Table 4, it can be seen that the plate-brown pigments of Examples 2 and 7 have a smaller change in color tone before and after wetting by squalane compared to the mixed pigments having similar color tone.

UV shielding effect

The ultraviolet shielding effect of Example 2 and Comparative Example 1 was compared. Ultraviolet light was measured at 320 nm, the boundary wavelength between UVB and UVA.

1. Preparation of coating film sample

0.2 g of castor oil was added to 0.2 g of the sample, and the mixture was kneaded 50 times and three times with a hover muller. 1.8 g of Kuriya lacquer (the Endo Chemical Co., Ltd. product) was added to this solution, and the sample for coating films was prepared.

2. Coating method

The sample for coating film produced above was dripped 2-3 drops on the transparent pet film (Lanmir 100-T60 by Panak Co., Ltd.), and the coating film was produced with the applicator (0.100 mm spacing) for coating film production.

3. Measurement of transmittance

The 320 nm transmittance | permeability of the coating film produced above was measured with the ultraviolet visible spectrophotometer (The Nippon Bunko Corporation make, model: V-570 type).

4. Results

The results are shown in Table 5.

As shown in Table 5, the 320 nm transmittance of Example 2 was 62%, confirming the ultraviolet shielding effect.

Example 11

Powder foundation

Ingredient compounding amount (mass%)

1.Plate brown pigment 20 of Example 1

2. Siliconized Talc 23.4

3. Fluorinated titanium oxide 10

4. Amino Acid Treatment Sericite 25

5. Siliconized Iron Sulfate 5

6. Siliconized Bengala 2.5

7. Silicon-treated black iron oxide 0.1

8. Methylpolysiloxane (100 cst) 11

9. Malic Acid Diisostearyl 3

After stirring components 1-7 with a Henschel mixer for 5 minutes, the well mixed 8 and 9 are added gradually, and it grind | pulverizes with a hammer mill. After that, it is pressed to an intermediate plate.

Example 12

Eye shadow

Ingredient compounding amount (mass%)

1.Plate brown pigment of Example 2 15

2. Amino Acid Treatment Titanium Oxide 7

3. Siliconized Mica 25

4. Amino Acid Treatment Sericite 10

5. Nylon Powder 10

6. Fluorinated Iron Sulfate 5

7. Fluorinated Bengala 10

8. Silicon treatment county 3

9. Methylphenylpolysiloxane 8

10.Cetyl 2-ethylhexanoate 7

The components 1-8 were stirred with a Henschel mixer for 5 minutes, and the well mixed 9 and 10 were added gradually, and it grind | pulverized with the hammer mill. After that, it is pressed to an intermediate plate.

Example 13

Cream foundation

Ingredient compounding amount (mass%)

1. Plate-like brown pigment 10 of Example 3

2. Siliconized Titanium Oxide 9.4

3. Siliconized Iron Sulfate 5

4. Siliconized Bengala 2.5

5. Silicon-treated black iron oxide 0.1

6. Cyclomethicone 30

7. Methylphenylpolysiloxane 10

8. Dimethicone Copolyol 5

9. Purified Water 20

10. 1,3-butylene glycol 5

11.Glycerin 3

The components 1-8 are mixed uniformly. After mixing components 8-11 uniformly, it adds to components 1-8 and emulsifies and mixes.

Example 14

Sunscreen  cream

Ingredient compounding amount (mass%)

1.Plate brown pigment 10 of Example 4

2. Decamethylcyclopentasiloxane 10

3. Siliconized fine particle titanium oxide 5

4. Siliconized fine particle zinc oxide 5

5. Methylphenylpolysiloxane 5

6. Isononanosan Isotridecyl 5

7. Diisostearic Acid Polyglyceryl-3 1

8. Dimethicone Copolyol 1

9. Behenyl Alcohol 2

10. Methyl Polymethacrylate 5

11.Trimethylsiloxysilicate 1

12. 1,3-butylene glycol 5

13.Sodium Chloride0.5

14. Purified water residual

A: The components 2-9 are heated at 80 degreeC, and it mixes uniformly.

B: Components 1, 10 and 11 are added to A component and mixed.

C: The components 12-14 are heated at 80 degreeC, and it mixes uniformly, adds this to B component, emulsifies and mixes and cools to room temperature.

1 is a view showing a scanning electron micrograph of Example 1.

FIG. 2 is a view showing a scanning electron micrograph of plate-like titanic acid of Comparative Example 1. FIG.

3 is a view showing a chromium-containing scanning electron microscope photograph of Comparative Example 2. FIG.

Claims (5)

A plate-like brown pigment of the formula K _{3x + y} Li _x Ti _{2 -x- y} Fe _y O ₄ (0.2≤x≤0.3, 0.05≤y≤0.5). The method of claim 1, The color tone is a plate-like brown pigment, which is a * = 4-15 and b * = 15-26 in L * a * b * color system. The method according to claim 1 or 2, A plate-shaped brown pigment, wherein the average thickness of the particles is 0.1 μm to 1 μm and the average long diameter is 10 μm to 100 μm. Cosmetics containing the plate-like brown pigment of any one of Claims 1-3. Powder cosmetic containing the plate-like brown pigment of any one of Claims 1-3.

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