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Photoluminescent pigment and cosmetic composition using the same

A technology of bright pigments and compositions, applied in the fields of bright pigments and cosmetic compositions, can solve the problems of unstable coating, high solubility, low oil absorption and the like

Active Publication Date: 2010-03-17
NIPPON SHEET GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] The conventional bright pigments described in Patent Documents 1 to 5 have low oil absorption, so the color cosmetic composition containing these pigments is effective against keratin substances, which are one of proteins such as skin epidermis (stratum corneum), nails, and hair. Unsatisfactory in terms of stretchability, usability, and biocompatibility of the surface
[0021] Amorphous calcium phosphate (ACP), Ca 3 (PO 4 ) 2 ·nH 2 O) Although it has high oil absorption and excellent adsorption of acidic substances (acid pigments), it has the disadvantage of high solubility in water or sweat and is unstable as a coating

Method used

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  • Photoluminescent pigment and cosmetic composition using the same
  • Photoluminescent pigment and cosmetic composition using the same
  • Photoluminescent pigment and cosmetic composition using the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0039] In Embodiment 1, an example of the bright pigment of the present invention will be described.

[0040] like figure 1 As shown, in an example of the bright pigment of the present invention, it is composed of a scaly substrate (such as a scaly glass substrate) 10 and an outermost coating 20, and the outermost coating 20 contains At least one of stone and hydrocalumite. Additionally, if figure 2 As shown, in another example of the bright pigment of the present invention, the scaly substrate 10 is covered with an interference color coating 30 and an outermost coating 20 in sequence. like image 3 As shown, in still another example of the bright pigment of the present invention, the scaly substrate 10 is coated with the silver-containing coating 40 and the outermost coating 20 in this order.

[0041] (flaky base)

[0042] As a material of the scaly base material 10, for example, at least one selected from the group consisting of glass, mica, synthetic mica, silica, and...

Embodiment approach 2

[0106] In Embodiment 2, an example of the cosmetic composition of this invention is demonstrated.

[0107] An example of the cosmetic composition of the present invention contains at least one selected from collagen and hyaluronic acid, the bright pigment of Embodiment 1, and a medium. In addition, the cosmetic composition of the present invention does not necessarily contain at least one selected from collagen and hyaluronic acid, a medium, etc., and may consist of only the bright pigment of the present invention.

[0108] Collagen has a positive charge due to its amino group and exhibits cationic properties. On the other hand, hyaluronic acid has a negative charge due to its carboxyl group and exhibits anionic properties. Therefore, when hyaluronic acid and collagen are simply mixed, the carboxyl group (negative charge) of hyaluronic acid and the amino group (positive charge) of collagen combine to form a precipitate called a polyion complex. The homogeneity of the cosmeti...

Embodiment 1

[0141] The bright pigment of Example 1 is an extender pigment having a structure in which a scaly substrate (flaky glass substrate) is coated with a hydroxyapatite coating (average particle diameter: 41 μm, average thickness: 1.4 μm). The bright pigment of Example 1 was produced as follows.

[0142] As the scaly substrate, a scaly glass substrate having an average particle diameter of 40 μm and an average thickness of 1.3 μm was prepared. The flaky glass matrix is ​​obtained by pulverizing glass flakes formed from molten glass using a balloon method using a pulverizer ("Palperaiza" in Japanese) and classifying them using an ultrasonic sieving machine.

[0143] Next, 30 g of the above-mentioned scaly glass substrate was added to 0.3 L of purified water to obtain a suspension. While maintaining the temperature of the suspension at 30° C. with a water bath, acetic acid was added dropwise to the suspension over 10 minutes each. An aqueous solution obtained by dissolving 14 g of c...

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Abstract

The bright pigment of the present invention contains a scaly substrate 10 and an outermost coating 20 that covers the scaly substrate 10, that is provided as an outermost layer, and that contains at least one member selected from the group consisting of hydroxyapatite and hydrocalumite. The bright pigment of the present invention may be further provided with an interference color coating that is disposed more towards the center than the outermost coating and that contains at least one metal oxide selected from the group consisting of titanium oxide and iron oxide. Moreover, the bright pigmentof the present invention may be further provided with a silver-containing coating that is disposed more towards the center than the outermost coating and that contains silver and / or a silver alloy. The outermost coating may contain an anionic pigment.

Description

technical field [0001] The present invention relates to a bright pigment and a cosmetic composition using the same. Background technique [0002] Conventionally, as bright pigments, scaly aluminum particles, graphite flake particles, scaly glass particles, scaly glass particles coated with silver, and mica flake particles coated with metal oxides such as titanium dioxide and iron oxide are known. , silica particles, alumina particles, etc. [0003] The surfaces of these bright pigments have the property of reflecting light and shining brightly, and thus are used as materials for paints, inks, resin compositions, cosmetics, and the like. When a coating is formed using cosmetics containing these bright pigments, the coating and the color tone of the texture combine to give a unique appearance that is rich in variety and excellent in cosmetic properties. [0004] In particular, the following are known as bright pigments having metallic luster. [0005] (1) Aluminum powder or...

Claims

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Application Information

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IPC IPC(8): C09C3/06A61K8/02A61K8/25A61K8/29A61K8/65A61K8/73A61Q1/04
CPCA61Q1/02C09C2200/303C09C2200/304C09C2200/307C09C1/0021C09C2200/1025A61K8/19A61Q1/10A61K2800/434A61Q1/04A61Q1/06C09C2200/302C01P2004/61C09C2220/10A61K2800/43C09C2200/301C09C1/0036C09C2210/50C09C1/0024C09C1/0015A61K8/29A61Q3/02C09C2200/102
Inventor 北村武昭
Owner NIPPON SHEET GLASS CO LTD