Abstract: An ink-jet ink composition includes: a solvent; a pigment comprising a first powder, the surface of which, in the solvent, bears a first charge; an ionic polymer having a second charge, which is counter to the first charge; and polyvalent ions having the first charge. The ink composition has a surface tension of 53 mN/m or less.

Abstract: The object of the present invention is to provide a cosmetic capable of giving high SPF values while maintaining feeling on use required for oil-in-water cosmetics, such as freshness and being easy to spread and reducing burden on the skin. A cosmetic containing a powder dispersion composition prepared by dispersing powder, wherein the powder has an average particle size of 10 times or less the primary particle size of the powder, the polydispersity index (PDI value) of the average particle size of the powder dispersion composition is 0.4 or less and the absorbance per 1% of the powder is 150 or more.

Abstract: The object of the present invention is to provide a powder dispersion composition capable of giving high SPF values while maintaining feeling on use required for oil-in-water cosmetics, such as freshness and being easy to spread and reducing burden on the skin. A powder dispersion composition prepared by dispersing powder, wherein the powder has an average particle size of 10 times or less the primary particle size of the powder, the polydispersity index (PDI value) of the average particle size of the powder dispersion composition is 0.4 or less and the absorbance per 1% of the powder is 150 or more.

Abstract: An ink-jet ink composition includes: a solvent; a pigment comprising a first powder, the surface of which, in the solvent, bears a first charge; an ionic polymer having a second charge, which is counter to the first charge; and polyvalent ions having the first charge. The ink composition has a surface tension of 53 mN/m or less.

Abstract: A composition includes a solvent, a powder that is present in the solvent and bears a first charge on its surface, an ionic polymer having a second charge that is opposite to the first charge, and a polyvalent ion having the first charge. The powder and the ionic polymer are electrostatically and/or ionically bonded with each other. The ionic polymer and the polyvalent ion are electrostatically and/or ionically bonded with each other.

Abstract: An oil-in water emulsion cosmetic composition has a good feeling in use and excellent dispersion stability, and does not cause patchiness upon drying. A hydrophobized powder is dispersed in an oil phase and processed with a wet type disperser to obtain a dispersed solution. A water phase is added thereto and processed with a homomixer, to obtain an oil-in water emulsion composition having excellent usability. The powder is easily dispersed upon application to skin. The dispersion stability of the powder is further improved, and the precipitation and creaming of the emulsion particle can be eliminated by blending a thickener having salt tolerance. A sticky feeling is eliminated by using succinoglycan as a thickener, and patchiness is eliminated by plasticizing said succinoglycan.

Abstract: This object of the invention is to provide an oil-in water emulsion cosmetic composition having fine sense of use and excellent dispersion stability, and does not occur twisting upon drying. In advance, a hydrophobicized powder is dispersed in an oil phase and processed with wet type disperser such as beads mill, dispersing solution is obtained. And then said dispersing solution and a water phase are processed with homomixer, an oil-in water emulsion composition having excellent sense of use and dispersibility of powder after applying to skin can be obtained. The dispersing stability of powder is extremely good by using a particular dispersant and a particular oil component. The dispersion stability of powder is further improved, and the precipitation and creaming of the emulsion particle can be solved by blending thickener having salt tolerance. Sticky feeling is solved by using succinoglycan as a thickener, and twisting is solved by plasticizing said succinoglycan.

Abstract: To provide a low-viscosity water-in-oil emulsion sunscreen cosmetic composition which is extremely excellent in UV protective enhancing effect (as the protective boosting effect of the UV absorption capability thereof) over a broad UV radiation region and has superior feeling in use (smooth feeling, dry feeling, and non-sticky feeling, etc.). A water-in-oil emulsion sunscreen cosmetic composition comprising (a) from 0.01 to 10% by mass of a water-soluble polymer and (b) from 0.01 to 30% by mass of a UV absorbent, and having a viscosity of at most 10,000 mPa·s (as measured with a B-type viscometer at 30° C.), wherein the aqueous phase accounts for at most 45% by mass.

Abstract: To provide a low-viscosity water-in-oil emulsion sunscreen cosmetic composition which is extremely excellent in UV protective enhancing effect (as the protective boosting effect of the UV absorption capability thereof) over a broad UV radiation region and has superior feeling in use (smooth feeling, dry feeling, and non-sticky feeling, etc.). A water-in-oil emulsion sunscreen cosmetic composition comprising (a) from 0.01 to 10% by mass of a water-soluble polymer and (b) from 0.01 to 30% by mass of a UV absorbent, and having a viscosity of at most 10,000 mPa·s (as measured with a B-type viscometer at 30° C.), wherein the aqueous phase accounts for at most 45% by mass.

Abstract: The present invention provides a dispersion of microparticulate titanium oxide that can generate a natural finish feeling, which includes a feeling of transparency, and has good long-term stability and an excellent UV protective effect in both UVA and UVB regions. The present invention is a dispersion of microparticulate titanium oxide characterized in that the microparticulate titanium oxide with the average major axis of 30 to 100 nm and the average minor axis of 8 to 50 nm is dispersed, by maintaining the average size of dispersed particles to be 80 to 110 nm, in a hydrophobic dispersion medium. In the dispersion of microparticulate titanium oxide, the content of silicone oil relative to the total hydrophobic dispersion medium is preferably 10 to 100 weight %. Furthermore, it is preferable that the dispersion of microparticulate titanium oxide contains a biterminally-siliconized polyglycerin as a dispersant. The dispersion of microparticulate titanium oxide can be preferably contained in a cosmetic.

Abstract: The present invention provides a cosmetic that contains glycerin modified on both ends with silicone represented by the following general formula (a). In this formula, R1 denotes a straight chain or branched alkyl group having 1-12 carbon atoms or phenyl group, R2 denotes an alkylene group having 2-11 carbon atoms, m is 10-120, and n is 1-11. The object of the present invention is to provide a cosmetic that contains glycerin modified on both ends with silicone and is superior in terms of the sensation during use and the powder dispersion stability.

Abstract: This object of the invention is to provide an oil-in water emulsion cosmetic composition having fine sense of use and excellent dispersion stability, and does not occur twisting upon drying. In advance, a hydrophobicized powder is dispersed in an oil phase and processed with wet type disperser such as beads mill, dispersing solution is obtained. And then said dispersing solution and a water phase are processed with homomixer, an oil-in water emulsion composition having excellent sense of use and dispersibility of powder after applying to skin can be obtained. The dispersing stability of powder is extremely good by using a particular dispersant and a particular oil component. The dispersion stability of powder is further improved, and the precipitation and creaming of the emulsion particle can be solved by blending thickener having salt tolerance. Sticky feeling is solved by using succinoglycan as a thickener, and twisting is solved by plasticizing said succinoglycan.

Abstract: The emulsified external skin preparation of the present invention is characterized by comprising a polyglycerol derivative represented by formula (1): wherein, m+2 represents the average polymerization degree of polyglycerol and 1?m?4; R1 is a hydrocarbon group having 1 to 4 carbon atoms or a hydrogen atom; AO is an oxyalkylene group having 3 to 4 carbon atoms; and n is the average addition mole number of the oxyalkylene group and 1?m n?200. In a water-in-oil type external skin preparation, and especially in that containing a polar oil or a silicone oil, emulsion stability is improved. In an oil-in-water type external skin preparation, feeling in use and emulsion stability are improved. Especially, in an oil-in-water type external skin preparation containing hydrophobized powder, powder dispersion stability is improved as well as feeling in use and emulsion stability.

Abstract: The present invention is to provide a sol composition, a oily gel composition, and a W/O type emulsion comprising an organically-modified clay mineral, having a platy particle structure with an average thickness of 0.1 ?m or less and an average major axis of 0.5 to 50 ?m in oil. It showed that the thicknening and gelling ability becomes significantly high, under the presence of a nonionic surfactant, by elaminating the aggregate of organically-modified clay mineral into platy particles in oil. In addition, because the stabilizing effect of a W/O emulsion is excellent, it is possible to provide a W/O emulsion with high emulsion stability at low viscosity by lowering the usage of the organically-modified clay mineral with a platy particle structure and the nonionic surfactant. Furthermore, it is possible to lower the viscosity of the composition, while maintaining the emulsion stability, by using an oil having COOH/OH groups.

Abstract: The present invention provides a cosmetic that contains glycerin modified on both ends with silicone represented by the following general formula (a). In this formula, R1 denotes a straight chain or branched alkyl group having 1-12 carbon atoms or phenyl group, R2 denotes an alkylene group having 2-11 carbon atoms, m is 10-120, and n is 1-11. The object of the present invention is to provide a cosmetic that contains glycerin modified on both ends with silicone and is superior in terms of the sensation during use and the powder dispersion stability.

Abstract: The present invention provides a dispersion of microparticulate titanium oxide that can generate a natural finish feeling, which includes a feeling of transparency, and has good long-term stability and an excellent UV protective effect in both UVA and UVB regions. The present invention is a dispersion of microparticulate titanium oxide characterized in that the microparticulate titanium oxide with the average major axis of 30 to 100 nm and the average minor axis of 8 to 50 nm is dispersed, by maintaining the average size of dispersed particles to be 80 to 110 nm, in a hydrophobic dispersion medium. In the dispersion of microparticulate titanium oxide, the content of silicone oil relative to the total hydrophobic dispersion medium is preferably 10 to 100 weight %. Furthermore, it is preferable that the dispersion of microparticulate titanium oxide contains a biterminally-siliconized polyglycerin as a dispersant. The dispersion of microparticulate titanium oxide can be preferably contained in a cosmetic.

Abstract: An objective of the present invention is to provide a method for producing cosmetic products capable of improving a touch of cosmetic products containing powder and exerting the function of the powder sufficiently. In order to accomplish the objective described above, a method for producing cosmetic products according to the invention comprises a use of a media-agitating mill to disperse powder components and oil components or aqueous components. A method for producing cosmetic products according to the invention is applied to powdery cosmetic products, oily cosmetic products, emulsified cosmetic products and lipsticks. A method for producing cosmetic products involving a step for imparting a particle with hydrophobicity using a media-agitating mill is also provided. Furthermore, a method for producing cosmetic products using hydrophobicity-imparted powdery dispersion containing organically-denatured clay mineral is provided.

Abstract: An object of the present invention is to provide a sunscreen cosmetic in which a micro particle zinc oxide is dispersed satisfactorily and which is excellent in the ultraviolet rays protection effect as indicated by SPF and PFA, and also in the finish transparency and the system stability. A sunscreen cosmetic obtained by means of an incorporation of a composite powder of a micro particle zinc oxide having a particle size of 0.1 &mgr;m or less which is coated with a silicic anhydride at a coating rate of 5 to 30 wt % and whose surface is treated with a silicone of 3 to 12 wt %, a dispersing treatment of said composite powder in an oil or water using a media-agitating mill or a high pressure dispersing machine and/or an incorporation of a polyoxyalkylene-modified polysiloxane.

Abstract: A cholesterol ester clathrate comprising a cholesterol ester included in a hydroxyalkylated cyclodextrin; a hydrous composition comprising a hydroxyalkylated cyclodextrin, a cholesterol ester and water; a hydrous composition comprising a hydroxyalkylated cyclodextrin, a cholesterol ester, a hydrous stabilizer, and water; a hydrous composition comprising a hydroxyalkylated cyclodextrin, a cholesterol ester, a clay mineral, and water; cosmetics containing these hydrous compositions; and process for the preparation thereof. The clathrate exhibits an emulsifying effect in itself. Further, the hydrous compositions are excellent in water-holding capacity and are improved in hydration properties and separation stability at a high temperature.

Abstract: A cholesterol ester clathrate comprising a cholesterol ester included within a hydroxyalkylated cyclodextrin; a hydrous composition comprising a hydroxyalkylated cyclodextrin, a cholesterol ester and water; a hydrous composition comprising a hydroxyalkylated cyclodextrin, a cholesterol ester, a hydrous stabilizer, and water; a hydrous composition comprising a hydroxyalkylated cyclodextrin, a cholesterol ester, a clay mineral, and water; a cosmetic containing a hydrous composition; and processes for making the cholesterol ester clathrate and various hydrous compositions. The cholesterol ester clathrate exhibits an emulsifying effect and the hydrous compositions are excellent in water-holding capacity, hydration properties, and separation stability at a high temperature.