Method for coloring keratinous materials comprising the use of organosilicon compounds, effect pigments, further coloring compounds and film-forming polymers I

A two-agent system using organosilicon compounds and film-forming polymers creates a durable multilayer film on keratinous materials, addressing the limitations of oxidative and direct dyes by providing long-lasting, wash-resistant color without hair damage or odor.

JP7750742B2Active Publication Date: 2025-10-07HENKEL KGAA
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Patent Information

Application Number
JP2021556621
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2019-03-19
Filing Date
2020-03-13
Publication Date
2025-10-07
Estimated Expiration
2040-03-13

AI Technical Summary

Technical Problem

Existing hair dyeing methods using oxidative dyes result in long-lasting color but cause damage and unpleasant odors, while direct dyes provide short-lasting color that washes out easily, and there is a need for wash-resistant hair color without these drawbacks.

Method used

A two-agent system is applied to keratinous materials, where the first agent contains an organosilicon compound and a coloring compound, followed by a film-forming polymer and a second coloring compound, forming a multilayer film system for durable color fixation.

Benefits of technology

The method produces highly abrasion-resistant and wash-fast effect dyes with excellent resistance to shampooing, avoiding damage and odor issues associated with oxidative dyes.

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Abstract

The subject of the present invention is the following: - applying an agent (a) to the keratinous material, said agent (a) comprising: (a1) at least one organosilicon compound selected from the group consisting of silanes having one, two, or three silicon atoms; and (a2) at least one first colorant compound comprising at least one layered substrate platelet-based pigment; and - applying an agent (b) to the keratinous material, said agent (b) comprising: (b1) at least one film-forming polymer, and (b2) at least one second colorant compound selected from the group consisting of pigments and / or direct dyes; Processes including A method for dyeing keratinous material, particularly human hair, comprising:
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Citation Information

Patent Citations

  • Use of a cosmetic composition comprising organic derivatives of silicium containing at least a basic moiety as pre-treatment before a composition comprising a film-forming hydrophobic polymer, a pigment and a solvent

    EP2168633A2

  • Cosmetic composition comprising organic silicon-containing compound containing at least one kind of chemically functional basic group, hydrophobic film-forming polymer, pigment and volatile solvent

    JP2010083892A

  • Metallic luster pigments based on substrate flakes with a thickness of 1 nm to 50 nm

    JP2016536406A

  • Compositions, kits, and methods for coloring keratin fibers

    JP2020505441A

  • Hair dyeing composition comprising at least one organosilicon compound, a colorant compound and a film-forming hydrophilic polymer

    JP2021523141A