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Colored metallic pigment, process for producing the same, and coating composition and cosmetic preparation comprising said colored metallic pigment

A technology for coloring metals and metallic pigments, which is applied in cosmetic preparations, medical preparations containing active ingredients, and pigment preparation, etc., and can solve the problems of difficulty in obtaining colored metallic pigments, interference with the degree of color change or limited display of high chromaticity, etc. , to achieve the effect of excellent light resistance

Active Publication Date: 2009-03-11
TOYO ALUMINIUM KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, according to Japanese Patent Publication 2003-49093 (Patent Document 8), Japanese Patent Publication 2003-131029 (Patent Document 9), Japanese Patent Publication 2003-89758 (Patent Document 10) and Japanese Patent Publication 2003-41150 (Patent Document 11) With the methods disclosed in each of the methods, the degree of change in interference color or the development of high chroma is limited, and disadvantageously, it is difficult to obtain colored metallic pigments with a satisfactory level of excellent aesthetics

Method used

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  • Colored metallic pigment, process for producing the same, and coating composition and cosmetic preparation comprising said colored metallic pigment
  • Colored metallic pigment, process for producing the same, and coating composition and cosmetic preparation comprising said colored metallic pigment
  • Colored metallic pigment, process for producing the same, and coating composition and cosmetic preparation comprising said colored metallic pigment

Examples

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Embodiment 1

[0181] A solution obtained by gradually adding 0.3 g of metallic molybdenum powder to 3 g of hydrogen peroxide water containing 30% by mass of hydrogen peroxide and allowing it to react was dissolved in 500 g of isopropyl alcohol (hereinafter abbreviated as IPA), A commercially available aluminum pigment (5422NS produced by Toyo Aluminum Kabushiki Kaisha—solid content: 75% by mass, average particle diameter: 19 μm, average thickness: 1 μm) 40 g (i.e., by aluminum content) was added as a metallic pigment 30 g), and these were stirred and mixed at 75° C. for 1 hour to obtain a slurry.

[0182] Thereafter, ammonia water and 80 g of water were added to the above slurry to adjust the pH of the slurry to 10.0. A substance prepared by dissolving 40 g of tetraethoxysilane in 40 g of IPA was gradually dropped into the pH-adjusted slurry, and the substances were further stirred / mixed at 75° C. for 2 hours. Thereafter, the slurry was solid-liquid separated by a filter to form an amorpho...

Embodiment 2

[0186] At 40° C., 10 g of a silica-coated aluminum pigment obtained by an amorphous silica film layer forming step similar to that in Example 1 was dispersed in 500 g of an aqueous solution containing 50 g of tin fluoride for 30 minutes to A metal layer was formed on the surface of the amorphous silicon oxide film layer (metal layer forming step), again solid-liquid separated and washed with water, and thereafter dispersed in 900 g of an electroless silver plating solution containing 3 g of silver nitrate, 40 g of glucose, and 20 g of ammonia water , and kept at 40° C. for 10 minutes to form metal particles on the surface of the metal layer (metal particle forming step), thereby obtaining a metal particle-bonded aluminum pigment. A blue aluminum pigment corresponding to the colored metallic pigment according to the present invention is obtained by solid-liquid separation and drying of the obtained metal particle-bonded aluminum pigment. When visually observed, this colored alu...

Embodiment 3

[0188] At 50° C., 10 g of a silica-coated aluminum pigment obtained by forming an amorphous silica film layer similar to the step in Example 1 was dispersed in 400 g of an aqueous solution containing 30 g of sodium stannate for 50 minutes to A metal layer is formed on the surface of the amorphous silicon oxide film layer (metal layer forming step), solid-liquid separation is performed again and washed with water, and then dispersed in 200 g of electroless silver plating containing 3 g of silver nitrate, 15 g of potassium sodium tartrate, and 15 g of ammonia water. solution, and kept at 35° C. for 40 minutes to form metal particles on the surface of the metal layer (metal particle forming step), thereby obtaining a metal particle-bonded aluminum pigment. A blue aluminum pigment corresponding to the colored metallic pigment according to the present invention is obtained by solid-liquid separation and drying of the obtained metal particle-bonded aluminum pigment. When visually ob...

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Abstract

This invention provides a colored metallic pigment, which can develop a variety of colors and varied interference colors while maintaining good lightfastness, weatherfastness and hiding power, a process for producing the same, a coating composition containing the colored metallic pigment and capable of providing a coating film having excellent finished appearance, and a cosmetic preparation containing the colored metallic pigment, having excellent hiding power, and capable of providing sharp hue. The colored metallic pigment comprises at least a metallic pigment, an amorphous silicon oxide film layer provided on the surface of the metallic pigment, a metal layer provided on the surface of the amorphous silicon oxide film layer, and metallic particles provided on the surface of the metal layer. The metallic particles are provided so as to directly cover a part of the surface of the metal layer. In the colored metallic pigment, the metal layer preferably comprises at least one metal selected from Sn, Pd, Pt and Au. The metallic particle preferably comprises at least one metal selected from Cu, Ni and Ag.

Description

technical field [0001] The present invention relates to a colored metallic pigment with excellent finished product appearance and a preparation method thereof, as well as a coating composition and a cosmetic product containing the colored metallic pigment. Background technique [0002] As a colored metallic pigment having a metallic effect excellent in aesthetic effect, a pigment obtained by bonding a colored pigment to a metallic pigment is generally known. In this colored metallic pigment, an organic pigment such as diketopyrrolopyrrole-based, quinacridone-based, dioxazine-based, or an inorganic pigment is used as the colored pigment bonded to the metallic pigment. , isoindolinone-based, condensed azo-based, reduced (threne)-based, perynone (perynone)-based, perylene-based, phthaloketone-based or phthalocyanine-based pigments; said inorganic pigments Examples include iron oxide or carbon black. [0003] In the above-mentioned colored metallic pigments, however, it is dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/62A61K8/19A61Q1/10A61Q3/02A61Q5/06C09C3/06C09D7/12
CPCC09C1/0021A61K8/19A61Q1/10C09C2200/24A61K2800/436C09D5/028C09C2200/502C01P2006/64C09C1/0015C09C1/642C09D11/037A61K8/25C09C2220/106A61Q9/00C09C1/62A61Q3/02Y10T428/12014Y10T428/2991C09C3/06
Inventor 森光太郎中尾贵之桥诘良树南山伟明中村正一
Owner TOYO ALUMINIUM KK
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