- 专利标题： Process for dyeing keratin materials using a direct dye and an aliphatic ammonium salt, and composition comprising same
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申请号： US17415665申请日： 2019-12-17
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公开(公告)号： US11672747B2公开(公告)日： 2023-06-13
- 发明人: Stéphane Sabelle , Olivier Guerard
- 申请人： L'OREAL
- 申请人地址： FR Paris
- 专利权人： L'OREAL
- 当前专利权人： L'OREAL
- 当前专利权人地址： FR Paris
- 代理机构： The Marbury Law Group, PLLC
- 优先权： FR 74026 2018.12.21
- 国际申请： PCT/EP2019/085630 2019.12.17
- 国际公布： WO2020/127250A 2020.06.25
- 进入国家日期： 2021-06-17
- 主分类号： A61Q5/10
- IPC分类号： A61Q5/10 ; A61K8/41 ; A61K8/35 ; A61K8/46 ; A61Q5/06
摘要：
The present invention relates to a cosmetic process for treating keratin materials, in particular keratin fibers, preferably human keratin fibers such as the hair, using a) one or more direct dyes which are preferably neutral and b) one or more particular aliphatic ammonium salts, and to a composition comprising ingredients a) and b). The cosmetic process for treating keratin materials of the invention makes it possible to obtain a good color build-up up and, furthermore, the colors are vivid and chromatic.
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