Title:
DOUBLE-AGENT-FORM HAIR DYE AND USE METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2024/027859
Kind Code:
A1
Abstract:
A double-agent-form hair dye and a use method therefor. The hair dye takes a melanin precursor as a dye intermediate, and the double-agent-form hair dye comprises: an agent I and an agent II, wherein the agent I comprises a melanin precursor and an aqueous medium; and the agent II comprises an alkaline agent and an aqueous medium, and the pH of the agent II is 8-14. The double-agent-form hair dye further comprises a surfactant and a thickening agent, and the surfactant and the thickening agent are at least present in the agent I. The alkaline agent and the dye intermediate, which mainly takes the role of dyeing the hair, are divided into two agents in the double-agent-form hair dye. The agent I containing the dye intermediate is firstly used during the hair dyeing process, and the agent II containing the alkaline agent is then used. Compared with a single-agent-form hair dye, the double-agent-form hair dye has stronger coloring effects, a better dyeing uniformity and easy product storage.
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Inventors:
LI ZONGSHENG (CN)
GUO RONGYAO (CN)
MENG LIFENG (CN)
GUO RONGYAO (CN)
MENG LIFENG (CN)
Application Number:
PCT/CN2023/130807
Publication Date:
February 08, 2024
Filing Date:
November 09, 2023
Export Citation:
Assignee:
FLORADYNE TECH CO LTD PEKING (CN)
International Classes:
A61Q5/10; A61K8/49
Foreign References:
| JP2018052833A | 2018-04-05 | |||
| JP2007326803A | 2007-12-20 | |||
| JP2020100578A | 2020-07-02 | |||
| CN106038411A | 2016-10-26 | |||
| JP2001181159A | 2001-07-03 | |||
| US5413612A | 1995-05-09 |
Attorney, Agent or Firm:
BEIJING WUZHOUYANGHE & PARTNERS (CN)
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