JP2007084478A - Cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cosmetic having excellent touch, a homogeneous cosmetic coated film and a natural skin feeling. <P>SOLUTION: The cosmetic is obtained by formulating a spherical titanium dioxide aggregate with an inorganic pigment. The spherical titanium dioxide aggregate is formed from small spherical particles of the titanium dioxide produced by using an autoclave and having 0.01-0.07 μm average primary particle diameter and has 0.1-3 μm apparent average particle diameter. The inorganic pigment has an average primary particle diameter within the range of 0.005-0.3 μm. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a powder cosmetic using a spherical titanium dioxide aggregate having excellent sliding properties as a cosmetic.
In addition, the present invention provides a feel by using (X) a spherical titanium dioxide aggregate in combination with (Y) an inorganic pigment having a strong frictional average primary particle diameter in the range of 0.005 to 0.3 μm. The present invention relates to a cosmetic material having an excellent and uniform cosmetic coating.
Furthermore, the present invention relates to a cosmetic characterized in that the cosmetic coating film has a natural skin texture by a combination of both components (X) and (Y).

As a method for producing titanium dioxide, typically, a sulfuric acid method using titanyl sulfate or basic titanium sulfate as a raw material, or a chlorine method in which titanium tetrachloride is oxidatively decomposed or a titanium tetrachloride aqueous solution is thermally hydrolyzed is known. However, in recent years, it is also known to produce by the so-called autoclave method using an autoclave.
Previously, the present inventors have found that spherical titanium dioxide aggregates improve the slip properties by autoclave method as described in Patent Document 1.
In addition, this slipping property is not due to an increase in the particle diameter. In the case of titanium oxide formed with a similar aggregate in Patent Document 2, etc., it is manufactured using an autoclave because no slipping property is observed. We were able to find out that the properties were unique to the particles.
On the other hand, various materials that improve slipperiness in cosmetics are known. For example, boron nitride of Patent Document 3 that is known to have low friction, spherical silicone resin powder of Patent Document 4 that is excellent in slipping due to a bearing effect, plate-shaped barium sulfate of Patent Document 5 that has a flat and smooth feel, etc. Is mentioned. However, all of these materials have characteristics that are inferior in hiding power, and it has been found that spherical titanium dioxide aggregates have particularly excellent properties as slippery materials having excellent hiding power.
In addition, when a large amount of titanium oxide with covering power is added to enhance the hiding power, there is a phenomenon called bluish white that appears bluish under strong light such as sunlight. Although it was possible to coat, there was a problem that it looked like an unnatural makeup finish. Thus, it has also been reported that natural finish is improved by using a specific proportion of titanium oxide having an average particle size of 0.5 to 1.5 μm and / or 0.1 to 0.5 μm (Cited document 6). However, it was not satisfactory in terms of slipperiness.

JP 2000-191325 A Japanese Patent Laid-Open No. 11-158035 JP-A-61-100508 JP-A 63-297313 JP 61-129107 A JP 2005-225827 A

In general, in cosmetics, particularly powder foundations, powders with high friction tend to adhere to the skin at the beginning of application, and powders with low friction tend to have a small amount of adhesion at the start of application. When this tendency becomes prominent, the makeup looks dirty. Therefore, it is devised so that the coating film looks as uniform as possible using the granulation technique and the effect of the binder which is an oil component.
However, when the decorative coating film is observed with an electron microscope or the like, the adhesion state and distribution of the pigment are often different even if the coating film actually looks uniform. In particular, inorganic pigments having an average primary particle size in the range of 0.005 to 0.3 μm often behave in a granulated state with other particles or behave together with a binder. In addition, pigment-grade titanium oxide having an average primary particle size in the range of 0.15 to 0.3 μm is an essential material as a concealing material, but it has strong friction and tends to increase the amount of adhesion at the initial stage of application. The actual situation is that users are dealing with these problems with makeup techniques such as layering.

Therefore, as a result of intensive studies, the present inventors have a (X) spherical titanium dioxide aggregate having a hiding power and excellent slipperiness, and (Y) an average primary particle diameter in the range of 0.005 to 0.3 μm. By using a combination of certain inorganic pigments, we succeeded in suppressing the change in hiding power and creating a more uniform cosmetic coating.
The obtained coating film was dull and excellent in touch.
(X) Spherical titanium dioxide aggregate used in the present invention, (Y) When mixed with an inorganic pigment having an average primary particle size in the range of 0.005 to 0.3 μm, both of them behave apart when applying cosmetics. Instead, they tend to behave relatively cooperatively, which is thought to be helpful in creating a homogeneous cosmetic coating.
Furthermore, (X) this spherical titanium dioxide aggregate is superior in transparency compared to pigment grade titanium oxide, and when used in combination with the above inorganic pigment, the transparency of the coating film is further improved and natural skin is improved. A decorative coating with a texture was obtained.

  That is, the basic constitution of the present invention is that the apparent average particle diameter formed from small spherical particles of titanium dioxide having an average primary particle diameter of 0.01 to 0.07 μm produced using (X) autoclave. Is a cosmetic comprising a spherical titanium dioxide aggregate having an average primary particle size in the range of 0.005 to 0.3 μm.

  According to a second aspect of the present invention, (Y) the inorganic pigment is one of (Y1) titanium dioxide, zinc oxide, cerium oxide and derivatives thereof, anhydrous silicic acid or alumina having an average primary particle size of 0.005 to 0.1 μm. The cosmetic is characterized by being selected from the above.

  In the third invention, (Y) the inorganic pigment is selected from one or more of (Y2) titanium dioxide, yellow iron oxide, bengara or black iron oxide having an average primary particle diameter of 0.15 to 0.3 μm. The cosmetic is characterized by the above.

  According to a fourth aspect of the present invention, the total blending mass of (Y) the inorganic pigment having an average primary particle diameter in the range of 0.005 to 0.3 μm is 0.1 per 1 part by weight of the (X) spherical titanium dioxide aggregate. It exists in said cosmetics characterized by being in the range of -10 mass parts.

  The fifth invention is characterized by further blending at least one selected from cellulose powder, barium sulfate, calcium carbonate, metal soap, alginic acid powder, silk powder, urethane powder, acrylic powder or silicone elastomer. To be in the above cosmetics.

  According to a sixth aspect of the present invention, (X) spherical titanium dioxide aggregate and (Y) an inorganic pigment having an average primary particle size in the range of 0.005 to 0.3 μm are formed from a silicone compound, an alkylsilane compound, a metal soap, or a fluorine compound. One or more selected surface water-repellent treatments are provided in the cosmetic described above.

As described above, in the cosmetic of the present invention, when (X) spherical titanium dioxide aggregate is used in combination with (Y) an inorganic pigment having an average primary particle diameter in the range of 0.005 to 0.3 μm, Since both of them work together in the above, there is an advantage that the uniformity of the coating film is high.
That is, the cosmetic of the present invention has an apparent average particle size of 0 formed from small spherical particles of titanium dioxide having an average primary particle size of 0.01 to 0.07 μm produced using (X) autoclave. By blending spherical titanium dioxide aggregates of 1-3 μm and (Y) inorganic pigments having an average primary particle diameter in the range of 0.005-0.3 μm, a uniform cosmetic coating film with excellent feel Has the effect of having a natural and natural skin texture.

Hereinafter, the present invention will be described in detail.
The (X) spherical titanium dioxide aggregate used in the present invention is a titanium oxide aggregate having a spherical to substantially spherical shape as shown in FIG. 1, and has an average primary particle diameter of 0.01 to 0.07 μm. An apparent average particle diameter formed from small spherical particles of titanium is 0.1 to 3 μm.
Here, the small spherical particles of titanium dioxide having an average primary particle diameter of 0.01 to 0.07 μm use numerical values measured by the X-ray diffraction method. As the apparent average particle diameter, those obtained by scanning electron microscope observation or laser diffraction method can be used, but those obtained by scanning electron microscope observation are preferably used.

In the present invention (Y) globular titanium dioxide aggregates, relative to the weight of in terms of TiO ₂ of the titanium salt contained in the solution of the titanium salt solution hydrogen peroxide solution in H ₂ O ₂ conversion 0. It can be obtained by adding 5 to 20% by mass and hydrothermally treating in an autoclave at a heating rate of 0.1 to 2 ° C./min and a set temperature of 150 to 230 ° C. for 1 hour or more.
The titanium salt solution used for the raw material is not particularly limited, and various types of materials can be used. For example, a solution of a sulfate such as titanium sulfate or titanium oxysulfate is preferably used, and in particular, a titanium oxysulfate solution. Is preferred.

In the present invention, an autoclave is used to produce titanium dioxide small spherical particles having an average primary particle size of 0.01 to 0.07 μm. Hydrothermal treatment in the autoclave is performed as follows: It is preferably carried out at a temperature of 150 to 230 ° C. (6 to 28 kg / cm ² ), and particularly preferably hydrothermally treated at 180 to 210 ° C. (10 to 20 kg / cm ² ).
When the treatment temperature is lower than 150 ° C. or higher than 230 ° C., the balance of the dissolution / precipitation rate of the hydrolyzate of the titanium salt is lost, the shape becomes non-uniform, or bonding at the primary particle interface occurs. Because it becomes active, there is a possibility that the grain boundary disappears and changes to one large particle instead of an aggregate.
In addition, when the rate of temperature increase is too high, the same adverse effect as in the case of the above processing temperature is required, so it is necessary to increase the temperature at a rate of temperature increase of 0.1 to 2 ° C./min. It is preferable to raise the temperature at 1.5 ° C./min. Further, if the treatment time is too short, hydrolysis of the titanium salt by hydrothermal treatment does not proceed sufficiently, so one hour or more is necessary, and about 12 hours is suitable.

The apparent average particle size of the (X) spherical titanium dioxide aggregate used in the present invention is in the range of 0.1 to 3 μm, but when the slip property is used as an index, the slip property is improved as the particle size is increased. .
On the other hand, the adhesiveness has the property that the smaller the particle size, the better the properties.Since these (X) spherical titanium dioxide aggregates in these areas are used in combination, or both slipperiness and adhesiveness are compatible. It is preferable to use the thing of the range of 0.3-1 micrometer.

In the cosmetic of the present invention, the (X) spherical titanium dioxide aggregate is used together with (Y) an inorganic pigment having an average primary particle diameter in the range of 0.005 to 0.3 μm, but the (Y) average primary particle diameter is Inorganic pigments in the range of 0.005 to 0.3 μm are pigments that generally have strong friction and adhesion to the skin and feel squeaky.
In the cosmetic of the present invention, the (Y) inorganic pigment having an average primary particle diameter in the range of 0.005 to 0.3 μm is used in combination with the (X) spherical titanium dioxide aggregate having excellent slip properties. (Y) improves the squeaky feeling of the inorganic pigment having an average primary particle size in the range of 0.005 to 0.3 μm and improves the uniformity of the decorative coating film.

Generally in cosmetics, lubricants such as sericite and talc, which are used as additives that exhibit dense, fine, silky and pearly luster, have a (Y) average primary particle size in the range of 0.005 to 0.3 μm. When used in combination with inorganic pigments, they often behave apart on the skin.
However, as in the present invention, when (X) spherical titanium dioxide aggregate is used in combination with (Y) an inorganic pigment having an average primary particle size in the range of 0.005 to 0.3 μm, both cooperate on the skin. Therefore, there is a merit that the uniformity of the coating film is high. As a blending region where this merit is easily obtained, (X) the total blending of inorganic pigments having an average primary particle diameter in the range of 0.005 to 0.3 μm with respect to 1 part by mass of the spherical titanium dioxide aggregate. The range of 0.05-20 mass parts is mentioned, Preferably it is in the range of 0.1-10 mass parts.

The inorganic pigment having an average primary particle diameter (Y) in the range of 0.005 to 0.3 μm in the present invention is not particularly limited as long as it is conventionally used in cosmetics.
Also, the shape is not particularly limited, such as a spherical shape, a rod shape, a spindle shape, or an indefinite shape.
Examples of these include, for example, titanium dioxide, zirconium oxide, zinc oxide, cerium oxide, magnesium oxide, barium sulfate, calcium sulfate, magnesium sulfate, calcium carbonate, magnesium carbonate, finely ground talc, kaolin, finely ground sericite, silicic acid. , Anhydrous silicic acid, aluminum silicate, magnesium silicate, magnesium aluminum silicate, calcium silicate, barium silicate, strontium silicate, metal tungstate, hydroxyapatite, dicalcium phosphate, aluminum hydroxide, boron nitride, silica , Alumina, black iron oxide, red iron oxide, yellow iron oxide, cobalt oxide, or low-order titanium oxide.

  Among these, (Y) an inorganic pigment having an average primary particle diameter in the range of 0.005 to 0.3 μm is (Y1) titanium dioxide and zinc oxide having an average primary particle diameter in the range of 0.005 to 0.1 μm. , Cerium oxide and its derivatives, silicic anhydride, or alumina is preferably selected. These pigments can exhibit properties such as an ultraviolet protection effect and a sebum adsorption effect more effectively by acting together with the spherical titanium dioxide aggregate.

  On the other hand, (Y) an inorganic pigment having an average primary particle diameter in the range of 0.005 to 0.3 μm is (Y2) titanium dioxide, yellow iron oxide in an average primary particle diameter of 0.15 to 0.3 μm, It is also effective to be selected from one or more of bengara or black iron oxide. In particular, titanium dioxide is effective and preferable for achieving uniform covering power of cosmetics.

In the cosmetic of the present invention, the various pigments described above may or may not be subjected to various surface treatments, but it is preferable that some kind of surface treatment is performed.
Examples of water repellent surface treatment include, for example, methylhydrogenpolysiloxane treatment, silicone resin treatment, silicone gum treatment, acrylic silicone treatment, organosiloxane treatment such as fluorinated silicone treatment, metal soap treatment such as zinc stearate treatment, Silane coupling agent treatment, silane treatment such as alkyl silane treatment, organic titanate treatment, organic aluminate treatment, perfluoroalkyl silane, perfluoroalkyl phosphate ester salt, fluorine compound treatment such as perfluoropolyether treatment, N-lauroyl Examples include amino acid treatment such as -L-lysine treatment, oil agent treatment such as squalane treatment, acrylic treatment such as alkyl acrylate treatment, and the like, and one or more of these can be used in combination.
Examples of the hydrophilized surface treatment include agar treatment, deoxyribonucleic acid treatment, lecithin treatment, polyacrylic acid treatment, silica treatment, alumina treatment or zirconia treatment.

  Among these surface treatments, in particular, in powder cosmetics such as powder foundation, powder eye shadow or blusher, when the present invention is applied, (X) spherical titanium dioxide aggregate and (Y) average primary particle size is 0. It is preferable that the inorganic pigment in the range of 005 to 0.3 μm has been subjected to one or more surface water-repellent treatments selected from silicone compounds, alkylsilane compounds, metal soaps, or fluorine compounds. These surface treatments have a high chargeability, and (X) spherical titanium dioxide aggregates and (Y) an inorganic pigment having an average primary particle diameter in the range of 0.005 to 0.3 μm are more effective in cooperating. There is a merit that can be enhanced.

  In the cosmetic of the present invention, in addition to the above-mentioned pigments, various pigments usually used in cosmetics, ultraviolet absorbers, oils, pigments, surfactants, fluorine compounds, resins, adhesives, preservatives, fragrances, moisturizers Ingredients such as salts, solvents, antioxidants, chelating agents, neutralizing agents, pH adjusting agents, insect repellents or physiologically active ingredients can be used.

  Examples of the pigment include inorganic powder, organic powder, surfactant metal salt powder, colored pigment, pearl pigment, metal powder pigment, tar dye or natural dye. Among these, especially in addition to the above-mentioned pigments, when blending one or more selected from cellulose powder, barium sulfate, calcium carbonate, metal soap, alginic acid powder, silk powder, urethane powder, acrylic powder or silicone elastomer, The texture of the decorative coating can be seen more naturally.

  The (X) spherical titanium dioxide aggregate used in the present invention is a pigment that has a large particle size and a large gap, and is more transparent than pigment-grade titanium oxide. Transparency can be enhanced. Moreover, it is preferable that the surface of the pigment to be added is subjected to various surface treatments as described above. Specific examples of these include the following components excluding the material corresponding to the size and shape described above.

  Examples of inorganic powders to be added include titanium oxide, zirconium oxide, zinc oxide, cerium oxide, magnesium oxide, barium sulfate, calcium sulfate, magnesium sulfate, calcium carbonate, magnesium carbonate, talc, mica, kaolin, sericite, Muscovite, synthetic mica, phlogopite, saucite, biotite, lithia mica, silicic acid, anhydrous silicic acid, aluminum silicate, magnesium silicate, magnesium aluminum silicate, calcium silicate, barium silicate, strontium silicate, Tungstic acid metal salt, hydroxyapatite, vermiculite, hydrite, bentonite, montmorillonite, hectorite, zeolite, ceramic powder, dicalcium phosphate, alumina, aluminum hydroxide, boron nitride, boron nitride or silica Etc. The.

  Organic powders include polyamide powder, polyester powder, polyethylene powder, polypropylene powder, polystyrene powder, polyurethane powder, benzoguanamine powder, polymethylbenzoguanamine powder, polytetrafluoroethylene powder, polymethyl methacrylate powder, cellulose powder, and silk powder. , Nylon powder such as 12 nylon and 6 nylon, polyacryl powder, polyacryl elastomer, styrene / acrylic acid copolymer, divinylbenzene / styrene copolymer, vinyl resin, urea resin, phenol resin, fluororesin, silicon resin, Acrylic resin, melamine resin, epoxy resin, polycarbonate resin, microcrystalline fiber powder, starch powder, lauroyl lysine, etc. .

  Furthermore, as surfactant metal salt powder (metal soap), zinc stearate, aluminum stearate, calcium stearate, magnesium stearate, zinc myristate, magnesium myristate, zinc cetyl phosphate, calcium cetyl phosphate, sodium cetyl phosphate Etc. As colored pigments, inorganic red pigments such as iron oxide, iron hydroxide and iron titanate, inorganic brown pigments such as γ-iron oxide, inorganic yellow pigments such as yellow iron oxide and loess, black iron oxide, carbon black, etc. Lake inorganic black pigments, inorganic purple pigments such as manganese violet and cobalt violet, inorganic green pigments such as chromium hydroxide, chromium oxide, cobalt oxide and cobalt titanate, inorganic blue pigments such as bitumen and ultramarine blue, and tar dyes And a synthetic resin powder obtained by compounding these powders.

  Further, examples of pearl pigments include titanium oxide-coated mica, titanium oxide-coated mica, bismuth oxychloride, titanium oxide-coated bismuth oxychloride, titanium oxide-coated talc, fish scale foil, titanium oxide-coated colored mica, and titanium oxide / iron oxide-coated mica Is mentioned.

Examples of the metal powder pigment include aluminum powder, copper powder, and stainless steel powder. As tar pigments, Red No. 3, Red No. 104, Red No. 106, Red No. 201, Red No. 202, Red No. 204, Red No. 205, Red No. 220, Red No. 226, Red No. 227, Red No. 228, Red 230, Red 401, Red 505, Yellow 4, Yellow 5, Yellow 202, Yellow 203, Yellow 204, Yellow 401, Blue 1, Blue 2, Blue 201, Blue 404 , Green No. 3, Green No. 201, Green No. 204, Green No. 205, Orange No. 201, Orange No. 203, Orange No. 204, Orange No. 206, Orange No. 207 and the like. Examples of natural dyes include pigments selected from carminic acid, laccaic acid, calsamine, bradylin, crocin, and the like.
Among these, the pearl pigment has characteristics such as giving the skin a glossy feeling, and when used in combination with the present invention, the pearl pigment is a preferred component because it can further enhance the transparency of the coating film.

  Examples of the organic ultraviolet protective component used in the present invention include 2-ethylhexyl paramethoxycinnamate (also known as octyl paramethoxycinnamate), 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4- Methoxybenzophenone-5-sulfate, 2,2′-dihydroxy-4-methoxybenzophenone, p-methoxyhydrocinnamic acid diethanolamine salt, paraaminobenzoic acid (hereinafter abbreviated as PABA), ethyldihydroxypropyl PABA, glyceryl PABA, homomenthyl salicylate , Methyl-O-aminobenzoate, 2-ethylhexyl-2-cyano-3,3-diphenyl acrylate, octyl dimethyl PABA, octyl salicylate, 2-phenyl-benzimidazole-5-sulfate, salicylic acid trie Nolamine, 3- (4-methylbenzylidene) camphor, 2,4-dihydroxybenzophenine, 2,2 ′, 4,4′-tetrahydroxybenzophenone, 2,2′-dihydroxy-4,4′-dimethoxybenzophenone, 2-hydroxy-4-N-octoxybenzophenone, 4-isopropyldibenzoylmethane, 4-tert-butyl-4′-methoxydibenzoylmethane, octyltriazone, 4- (3,4-dimethoxyphenylmethylene) -2 , 5-dioxo-1-imidazolidinepropionate 2-ethylhexyl, their polymer derivatives and silane derivatives.

It is also possible to use a material in which an organic ultraviolet protection component is sealed in a polymer powder. The polymer powder may or may not be hollow, the average primary particle diameter may be in the range of 0.1 to 50 μm, and the particle size distribution may be broad or sharp.
Examples of the polymer include acrylic resin, methacrylic resin, styrene resin, polyurethane resin, polyethylene, polypropylene, polyethylene terephthalate, silicone resin, nylon or acrylamide resin.

  Examples of the oil used in the cosmetic of the present invention include avocado oil, linseed oil, almond oil, ibotarou, eno oil, olive oil, cacao butter, kapok wax, kayak oil, carnauba wax, liver oil, candelilla wax, beef tallow, beef leg fat, Beef bone fat, hydrogenated beef tallow, Kyonin oil, whale wax, hydrogenated oil, wheat germ oil, sesame oil, rice germ oil, rice bran oil, sugarcane wax, sasanqua oil, safflower oil, shea butter, cinnamon oil, cinnamon oil, jojoballow , Shellac oil, turtle oil, soybean oil, tea seed oil, camellia oil, evening primrose oil, corn oil, lard oil, rapeseed oil, Japanese kiri oil, nukarou, germ oil, horse fat, persic oil, palm oil, palm kernel oil, Castor oil, hydrogenated castor oil, castor oil fatty acid methyl ester, sunflower oil, grape oil, bayberry wax, jojoba oil, macadamia nut , Beeswax, mink oil, cottonseed oil, cotton wax, owl, owl kernel oil, montan wax, coconut oil, hydrogenated coconut oil, tricoconut oil fatty acid glyceride, sheep oil, peanut oil, lanolin, liquid lanolin, reduced lanolin, lanolin alcohol, hard lanolin Lanolin acetate, lanolin fatty acid isopropyl, hexyl laurate, POE lanolin alcohol ether, POE lanolin alcohol acetate, lanolin fatty acid polyethylene glycol, POE hydrogenated lanolin alcohol ether, egg yolk oil and the like. Examples of the hydrocarbon oil include ozokerite, squalane, squalene, ceresin, paraffin, paraffin wax, liquid paraffin, pristane, polyisobutylene, microcrystalline wax or petrolatum.

As higher fatty acids, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, undecylenic acid, oleic acid, linoleic acid, linolenic acid, arachidonic acid, eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), isostearic acid Or 12-hydroxystearic acid etc. are mentioned.
Higher alcohol oils include lauryl alcohol, myristyl alcohol, palmityl alcohol, stearyl alcohol, behenyl alcohol, hexadecyl alcohol, oleyl alcohol, isostearyl alcohol, hexyl decanol, octyldodecanol, cetostearyl alcohol, 2-decyltetra alcohol Examples include decinol, cholesterol, phytosterol, POE cholesterol ether, monostearyl glycerin ether (batyl alcohol) or monooleyl glyceryl ether (ceralkyl alcohol).

  Ester oils include diisobutyl adipate, 2-hexyldecyl adipate, di-2-heptylundecyl adipate, N-alkyl glycol monoisostearate, isocetyl isostearate, trimethylolpropane triisostearate, di-2-ethyl Ethylene glycol hexanoate, cetyl 2-ethylhexanoate, trimethylolpropane tri-2-ethylhexanoate, pentaerythritol tetra-2-ethylhexanoate, cetyl octanoate, octyldodecyl gum ester, oleyl oleate, octyldodecyl oleate , Decyl oleate, isononyl isononanoate, neopentyl glycol dicaprate, triethyl citrate, 2-ethylhexyl succinate, amyl acetate, ethyl acetate, butyl acetate, stearin Isocetyl, butyl stearate, diisopropyl sebacate, di-2-ethylhexyl sebacate, cetyl lactate, myristyl lactate, isopropyl palmitate, 2-ethylhexyl palmitate, 2-hexyldecyl palmitate, 2-heptylundecyl palmitate, 12 -Cholesteryl hydroxy stearyl, dipentaerythritol fatty acid ester, isopropyl myristate, octyldodecyl myristate, 2-hexyldecyl myristate, myristyl myristate, hexyl dimethyloctanoate, ethyl laurate, hexyl laurate, N-lauroyl- Examples thereof include L-glutamic acid-2-octyldodecyl ester and diisostearyl malate.

  Examples of glyceride oil include acetoglyceryl, glyceryl triisooctanoate, glyceryl triisostearate, glyceryl triisopalmitate, glyceryl tri (capryl / capric acid), glyceryl monostearate, glyceryl di-2-heptylundecanoate, and trimyristic acid Examples include glyceryl or diglyceryl myristate isostearate.

  Silicone oils such as dimethylorganopolysiloxane, methylphenylpolysiloxane, amino-modified organopolysiloxane, alcoholic hydroxyl group-containing organopolysiloxane, alkyl-modified organopolysiloxane, and amodimethicone can also be preferably used. Moreover, there is no restriction | limiting in the silicone chain length of these silicones, and if it is the range of 1 to 30000 degree of polymerization, it can be used.

  It is also possible to blend fluorocarbons such as fluorine-modified silicone, perfluoropolyether, fluorinated pitch, perfluorodecalin and perfluorooctane, and fluorine-based oils such as fluoroalcohol or perfluoroalkyl ether.

  Examples of the humectant used in the present invention include sugar alcohols such as sorbitol, maltose, maltitol, etc., and sterols such as cholesterol, sitosterol, phytosterol, lanosterol, glucose, sucrose, lactose, raffinose, trehalose, xylitol, glycerin, propylene. Glycol, dipropylene glycol, tripropylene glycol, polypropylene glycol, 1,3-butylene glycol, ethylene glycol, diethylene glycol, triethylene glycol, diglycerin, polyglycerin, hyaluronic acid and its salt, chondroitin sulfate and its salt, pyrrolidone carboxylic acid Examples thereof include salts, polyoxyethylene methyl glucoside, polyoxypropylene methyl glucoside, and ethyl glucoside.

  As the thickener used in the present invention, gum arabic, tragacanth, arabinogalactan, locust bean gum (carob gum), guar gum, caraya gum, carrageenan, pectin, agar, quince seed (malmello), starch (rice, corn, potato, Wheat), alge colloids, plant polymers such as Tranto gum, xanthan gum, dextran, succinoglucan, pullulan and other microbial polymers, collagen, casein, albumin, gelatin and other animal polymers, carboxymethyl starch, methylhydroxy Starch polymers such as propyl starch, methylcellulose, ethylcellulose, methylhydroxypropylcellulose, carboxymethylcellulose, hydroxymethylcellulose, hydroxypropylcellulose , Nitrocellulose, sodium cellulose sulfate, sodium carboxymethylcellulose, crystalline cellulose, cellulose polymer of cellulose powder, alginic acid polymers such as sodium alginate, propylene glycol alginate, vinyl such as polyvinyl methyl ether, polyvinyl pyrrolidone, carboxyvinyl polymer Polymer, polyoxyethylene polymer such as polyethylene glycol, polyoxyethylene polyoxypropylene copolymer polymer, acrylic polymer such as sodium polyacrylate, polyethyl acrylate, polyacrylamide, polyethyleneimine, Such as cationic polymer, bentonite, magnesium aluminum silicate, laponite, smectite, saponite, hectorite or silicic anhydride Machine-based thickener, and the like.

  Other thickening agents include oil-soluble gelling agents such as metal soaps such as aluminum stearate, magnesium stearate, zinc myristate, N-lauroyl-L-glutamic acid, α, γ-di-n. -Amino acid derivatives such as butylamine, dextrin palmitate, dextrin stearate, dextrin fatty acid ester such as dextrin 2-ethylhexanoate palmitate, sucrose fatty acid ester such as sucrose palmitate, sucrose stearate, Benzylidene derivatives of sorbitol such as monobenzylidene sorbitol, dibenzylidene sorbitol, dimethylbenzyl dodecyl ammonium montmorillonite clay, dimethyl dioctadecyl ammonium montmorillonite or octa At least one gelling agent selected from organically modified clay minerals such as decyldimethylbenzylammonium montmorillonite can be used.

Surfactants include anionic, cationic, nonionic and amphoteric active agents, but are not particularly limited, and may be appropriately selected depending on the type of formulation and are usually used in cosmetics. Any one can be used.
Specific examples of the anionic surfactant include fatty acid soaps such as sodium stearate and triethanolamine palmitate, alkyl ether carboxylic acids and salts thereof, carboxylates such as condensation of amino acids and fatty acids, alkyls. Sulfonic acid, alkene sulfonate, sulfonate of fatty acid ester, sulfonate of fatty acid amide, sulfonate of alkyl sulfonate and its formalin condensate, alkyl sulfate ester, secondary higher alcohol sulfate, Alkyl and allyl ether sulfates, sulfates of fatty acid esters, sulfates of fatty acid alkylolamides, sulfates such as funnel oil, alkyl phosphates, ether phosphates, alkyl allyl ether phosphates, amide phosphorus Acid salt or N-a Arylamino acid active agent and the like.

Examples of cationic surfactants include alkylamine salts, amine salts such as polyamines and amino alcohol fatty acid derivatives, alkyl quaternary ammonium salts, aromatic quaternary ammonium salts, pyridium salts, and imidazolium salts.
Nonionic surfactants include sorbitan fatty acid ester, glycerin fatty acid ester, polyglycerin fatty acid ester, propylene glycol fatty acid ester, polyethylene glycol fatty acid ester, sucrose fatty acid ester, polyoxyethylene alkyl ether, polyoxypropylene alkyl ether, poly Oxyethylene alkyl phenyl ether, polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbitol fatty acid ester, polyoxyethylene glycerin fatty acid ester, polyoxyethylene propylene glycol fatty acid ester, polyoxyethylene castor oil, polyoxyethylene Hydrogenated castor oil, polyoxyethylene phytostanol ether, polyoxyethylene Down phytosterol ether, polyoxyethylene cholestanol ether, polyoxyethylene cholesteryl ether, alkanol amide, sugar ether and sugar amides.

Examples of amphoteric surfactants include betaines, aminocarboxylates, imidazoline derivatives, polyether-modified silicones, silicone compounds having a glyceryl group or polyglyceryl group at the side chain or terminal, and sugar-modified silicones.
As a compounding quantity of surfactant, 0.1-20 mass% is preferable with respect to the total amount of cosmetics, More preferably, it is 0.5-10 mass%. Moreover, 1 type, or 2 or more types can be used for surfactant.

  As preservatives, paraoxybenzoic acid alkyl ester, benzoic acid, sodium benzoate, sorbic acid, potassium sorbate, phenoxyethanol, etc. Antibacterial agents include benzoic acid, salicylic acid, carboxylic acid, sorbic acid, paraoxybenzoic acid alkyl ester, para Examples include chlorometacresol, hexachlorophene, benzalkonium chloride, chlorhexidine chloride, trichlorocarbanilide, triclosan, photosensitizer, or phenoxyethanol.

  The volatile components used in the present invention include lower alcohols such as ethanol and isopropyl alcohol, volatile silicones such as decamethylcyclopentasiloxane and methyltrimethicone, terpene oils, isoparaffin oils, perfluoropolyethers, perfluoro Fluorine-based oils such as alkyl ethers are listed.

  As the resin component used in the present invention, in addition to the above waxes, silicone resin resins such as trimethylsiloxysilicic acid and fluorinated silicone resin, and modified silicones such as acrylic silicone, alkyl-modified silicone or polyamide-modified silicone are used. Can do. Resin components including waxes are effective for fixing the spherical titanium dioxide aggregate to the skin, and have the advantage of helping to improve makeup sustainability.

Examples of the physiologically active ingredient used in the present invention include substances that give some physiological activity to the skin when applied to the skin. For example, anti-inflammatory agents, anti-aging agents, UV protection agents, tanning agents, antioxidants, moisturizers, blood circulation promoters, antibacterial agents, bactericides, desiccants, cooling agents, warming agents, vitamins, amino acids, Examples include wound healing promoters, stimulus-relieving agents, analgesics, cell activators, enzyme components, and the like. Among these, natural plant extract components, seaweed extract components, or herbal medicine components are particularly preferable.
In the present invention, it is preferable to blend one or more of these physiologically active ingredients. In particular, since the spherical titanium dioxide aggregate used in the present invention is porous and has an effect of retaining these physiologically active ingredients, the physiologically active ingredient and the spherical titanium dioxide aggregate are mixed in advance to obtain the physiological activity. It is also preferable to blend in a form that retains the components.

  These bioactive ingredients include, for example, Ashitaba extract, Avocado extract, Achacha extract, Altea extract, Arnica extract, Aloe extract, Apricot extract, Apricot extract, Ginkgo biloba extract, Fennel extract, Turmeric extract, Oolong tea extract, Ages extract, Echinacea Leaf extract, Ogon extract, Oat extract, Oen extract, Barley extract, Hypericum extract, Odrianthus extract, Dutch mustard extract, Orange extract, Seawater extract, Seaweed extract, Hydrolyzed elastin, Hydrolyzed wheat powder, Hydrolyzed silk, Chamomile extract , Carrot extract, Kawaramugi extract, Licorice extract, Calcade extract, Oyster extract, Kiwi extract, Kina extract, Cucumber extract, Guanosine, Gardenia extract, Kumazasa extract Clara extract, walnut extract, grapefruit extract, clematis extract, chlorella extract, mulberry extract, gentian extract, tea extract, yeast extract, burdock extract, rice bran extract, rice germ oil, comfrey extract, collagen, bilberry extract, saicin extract, psycho Extract, Saitai Extract, Salvia Extract, Salamander Extract, Sasa Extract, Hawthorn Extract, Salamander Extract, Shiitake Extract, Giant Extract, Shikon Extract, Perilla Extract, Linden Extract, Shimotake Extract, Peonies Extract, Ginger Root Extract, Birch Extract, Sugina Extract, Kizuta extract, hawthorn extract, elderberry extract, yarrow extract, mint extract, sage extract, mallow , Cucumber extract, assembly extract, soybean extract, thymus extract, thyme extract, tea extract, clove extract, chigaya extract, chimpi extract, toki extract, toshinsen extract, tonin extract, spruce extract, dokudami extract, tomato extract, natto extract, carrot extract, Garlic extract, Novara extract, Hibiscus extract, Bacmond extract, Lotus extract, Parsley extract, Honey, Hamamelis extract, Parietalia extract, Hikikoshi extract, Bisabolol, Biwa extract, Fukitane poppo extract, Fukinoto extract, Bucurio extract, Butcher bloom extract, Grape extract, Propolis, Loofah extract, safflower extract, peppermint extract, bodaiju extract, button extract, hop extract, pine extract, maroni D extract, Citrus extract, Mukuroji extract, Melissa extract, Peach extract, Cornflower extract, Eucalyptus extract, Yukinoshita extract, Yuzu extract, Yakuinin extract, Artemisia extract, Lavender extract, Apple extract, Lettuce extract, Lemon extract, Astragalus extract, Rose extract, Rosemary An extract, a Roman chamomile extract, a royal jelly extract, etc. can be mentioned.

  Examples of the pH adjuster include lactic acid, citric acid, glycolic acid, succinic acid, tartaric acid, dl-malic acid, potassium carbonate, sodium hydrogen carbonate, ammonium hydrogen carbonate and the like, and examples of the chelating agent include alanine, sodium edetate. Examples thereof include salts, sodium polyphosphate, sodium metaphosphate, and phosphoric acid.

  Examples of the elastomer include polyethylene, polypropylene, cross-linked silicone powder, silicone gel, polyether-modified silicone gel, polyglycerin-modified silicone gel, and alkyl acrylate copolymer.

Applications of the cosmetics of the present invention mainly include makeup cosmetics, such as foundations, concealers, white powders, eye shadows, eyeliners, eyebrows, cheeks, nail colors, lip balms, lipsticks, sunscreen agents, makeup Examples of the base material include foundations, concealers, lipsticks, and nail colors.
The form of the product is not particularly limited, and may be liquid, emulsion, cream, solid, paste, gel, powder, multilayer, mousse, spray, stick, or the like.

  Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited thereto.

Example 1
A foundation was prepared according to the formulation shown in Table 1.
(X) a spherical titanium dioxide aggregate formed from small spherical particles of titanium dioxide having an average primary particle diameter of 0.03 μm produced using an autoclave, and having an apparent average particle diameter of 0.9 μm A sample obtained by baking a titanium dioxide aggregate (anatase type titanium oxide) with 2% by mass of methyl hydrogen polysiloxane was used.
(Y) As an inorganic pigment having an average primary particle diameter in the range of 0.005 to 0.3 μm, rutile type titanium oxide having an average primary particle diameter of 0.28 μm is similarly 2 mass by methylhydrogenpolysiloxane. A sample subjected to% baking treatment and silicone-treated fine particle titanium oxide having an average primary particle diameter of 35 nm were used.
In addition, the unit in a table | surface is the mass%, and a particle size means an average primary particle diameter.

  Component A was mixed and pulverized using a mixer, and component B dissolved uniformly was added from above, and further mixed and pulverized. Next, the obtained mixture was passed through a mesh (60 mesh), and then cast into a metal pan using a mold to obtain a product.

(Comparative Example 1)
In Example 1, a product was obtained in the same manner as in Example 1 except that silicone-treated rutile titanium dioxide was used instead of the silicone-treated spherical titanium dioxide aggregate.

[Example 2]
Loose powder was prepared according to the formulation shown in Table 2 below.
(X) Spherical titanium dioxide having an apparent average particle diameter of 0.4 μm formed from small spherical particles of titanium dioxide having an average primary particle diameter of 0.02 μm produced using an autoclave as a spherical titanium dioxide aggregate A sample obtained by baking 2 mass% of an aggregate (anatase type titanium oxide) with octyltriethoxysilane was used.
In addition, (Y) as an inorganic pigment having an average primary particle size in the range of 0.005 to 0.3 μm, the silicon-treated fine particle oxidized by baking 3% by mass with methyl hydrogen polysiloxane having an average primary particle size of 30 nm. Zinc was used.
In addition, the unit in a table | surface is the mass%.

  Component A was mixed and pulverized using a mixer, component B was added from above, and further mixed and pulverized. Next, the obtained mixture was passed through a mesh (60 mesh) and then filled into a container to obtain a product.

[Comparative Example 2]
In Example 2, a product was obtained in the same manner as in Example 2 except that octylsilylated spherical titanium dioxide aggregate was used in place of the silicone-treated fine particle zinc oxide.

Example 3
A W / O liquid foundation was prepared according to the formulation shown in Table 3 below.
(X) Spherical titanium dioxide having an apparent average particle diameter of 1.2 μm formed from small spherical particles of titanium dioxide having an average primary particle diameter of 0.05 μm produced using an autoclave as a spherical titanium dioxide aggregate Aggregates (anatase-type titanium oxide) were used.
In addition, (Y) inorganic pigments having an average primary particle diameter in the range of 0.005 to 0.3 μm include fine particle titanium oxide having an average primary particle diameter of 15 nm treated with 3% by mass with octyltriethoxysilane, and octyl Fine zinc oxide having an average primary particle diameter of 20 nm treated with 3% by mass with triethoxysilane and titanium oxide having an average primary particle diameter of 0.22 μm treated with 3% by mass of zinc stearate were used.
In addition, the unit in a table | surface is the mass%.

[Production method]
Component A was mixed well and pulverized. This was added to component B uniformly dissolved at 70 ° C. and stirred well. Ingredient C dissolved uniformly at 70 ° C. was added thereto with stirring, cooled while mixing well with a homomixer, and then filled into a container to obtain a product.

[Comparative Example 3]
A product was obtained in the same manner as in Example 3 except that titanium oxide having an irregular shape with an average primary particle diameter of 1.2 μm was used instead of the spherical titanium dioxide aggregate used in Example 3.

Table 4 below shows the evaluation results of Examples and Comparative Examples.
As for the evaluation results, 10 panelists were used to apply the products to be actually tested half face by face, and the results were evaluated in a questionnaire format.
Moreover, evaluation was performed by the score of 0-5 points, respectively (0 point shows that evaluation is bad and 5 points | pieces show that evaluation is good), and it was set as the evaluation result with the average score of all the panelists.
Therefore, it shows that it is judged that it is excellent with respect to each evaluation item, so that a score is high.

From the results of the above (Table 4), it can be seen that the examples of the present invention are superior in touch and have a uniform cosmetic film as compared with the comparative example, and further, the cosmetic film has a natural skin texture. .
Comparative Example 1 is an example in which a silicone-treated rutile type titanium oxide was used instead of the silicone-treated spherical titanium dioxide aggregate of Example 1 (an example in which a spherical titanium dioxide aggregate was not used). It is clear that is evaluated as unnatural and unnatural.
Next, Comparative Example 2 is an example in which an octylsilylated spherical titanium dioxide aggregate was used instead of the silicone-treated fine particle zinc oxide of Example 2 (an inorganic material having an average primary particle size in the range of 0.005 to 0.3 μm). Although an example in which no pigment was used), the feeling of application such as smoothness was improved, but the powder was slightly covered, the cosmetic coating film was not uniform, and the texture was also deteriorated.
Further, Comparative Example 3 is an example using titanium oxide having an irregular shape with an average primary particle diameter of 1.2 μm instead of the spherical titanium dioxide aggregate of Example 3 (without using the spherical titanium dioxide aggregate). In this example, titanium oxide having the same particle diameter is used), but it is understood that the touch at the time of application is poor and the properties of the decorative coating are also inferior.
Overall, the examples were evaluated as having a firmer skin than the comparative examples.

Example of scanning electron micrograph of spherical titanium dioxide aggregate

Claims (6)

  (X) a spherical titanium dioxide aggregate having an apparent average particle diameter of 0.1 to 3 μm formed from small spherical particles of titanium dioxide having an average primary particle diameter of 0.01 to 0.07 μm; and (Y) Cosmetics blended with (Y1) an inorganic pigment having an average primary particle diameter in the range of 0.005 to 0.1 μm and / or (Y2) an inorganic pigment having an average primary particle diameter in the range of 0.15 to 0.3 μm. Fee.    (Y1) The inorganic pigment having an average primary particle size in the range of 0.005 to 0.1 μm is selected from one or more of titanium dioxide, zinc oxide, cerium oxide and derivatives thereof, anhydrous silicic acid or alumina. The cosmetic according to claim 1.    (Y2) The inorganic pigment having an average primary particle size in the range of 0.15 to 0.3 μm is selected from one or more of titanium dioxide, yellow iron oxide, bengara or black iron oxide. Cosmetics in any one of 2.   The total blending mass of (Y) inorganic pigment is in the range of 0.1 to 10 parts by mass with respect to 1 part by mass of (X) spherical titanium dioxide aggregates. Cosmetics according to item.   Further, (Z) one or more selected from cellulose powder, barium sulfate, calcium carbonate, metal soap, alginic acid powder, silk powder, urethane powder, acrylic powder, and silicone elastomer are blended. Cosmetics of any one of 1-4.   The (X) spherical titanium dioxide aggregate and the (Y) inorganic pigment have been subjected to one or more surface water-repellent treatments selected from silicone compounds, alkylsilane compounds, metal soaps, and fluorine compounds. Cosmetics given in any 1 paragraph of Claims 1-5.