composition

By subjecting pigment particles to surface treatment with specific ester compounds, the dispersibility of pigment particles in oil is improved, solving the problem of insufficient dispersibility of pigment particles in oil, and suppressing the adverse effects of metallic element pigment particles on cosmetic compositions, thus achieving better dispersibility and stability.

CN122270253APending Publication Date: 2026-06-23SHISEIDO CO LTD
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Patent Information

Application Number
CN202480075394.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2024-07-29
Filing Date
2024-12-24
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

In the prior art, pigment particles are not sufficiently dispersed in oil, especially pigment particles containing metal elements, which have an adverse effect on other components of the cosmetic composition.

Method used

The pigment particles are surface-treated with triesters or tetraesters formed by fatty acids with 8 to 20 carbon atoms and monoglycerides or polyglycerides, and combined with diesters of fatty acids with 8 to 20 carbon atoms and monoglycerides or polyglycerides, or diesters of dicarboxylic acids and fatty alcohols with 8 to 20 carbon atoms, to improve the dispersibility of the pigment particles and suppress the influence of metal elements on other components.

Benefits of technology

It improves the dispersibility of pigment particles in oil and suppresses the adverse effects of metallic pigment particles on other components of the cosmetic composition. In particular, in the case of pigment particles containing metallic elements, it improves the stability of the composition and the durability of the colorant.

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Abstract

Provided is a composition in which the dispersibility of pigment particles in oil is improved, particularly a composition in which the dispersibility of pigment particles in oil is further improved and in which, in the case where the pigment particles are pigment particles containing a metal element, the influence of the pigment particles on other components of the composition is suppressed. The composition of the present invention contains the following components: (a) pigment particles that have been surface-treated with a triester or tetraester compound formed from a fatty acid having 8 to 20 carbon atoms and a monoglycerin or a polyglycerin; and (b) (b1) a diester compound formed from a fatty acid having 8 to 20 carbon atoms and a monoglycerin or a polyglycerin, and / or (b2) a diester compound formed from a dicarboxylic acid and a fatty alcohol having 8 to 20 carbon atoms.
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Citation Information

Patent Citations

  • Cosmetic

    JP2023007281A

  • Powder material for cosmetic, method for producing powder material for cosmetic, and cosmetic

    WO2022030462A1