| 发明名称 |
Hair Colouring Methods and Kits Thereof |
| 摘要 |
Method for colouring hair wherein a first hair colouring composition is applied to the hair, e.g. the hair roots and a second hair colouring composition is applied to the hair, e.g. the hair lengths and tips, wherein the pH of the second hair colouring composition is lower than the pH of the first hair colouring composition. |
| 申请公布号 |
US2015053228(A1) |
申请公布日期 |
2015.02.26 |
| 申请号 |
US201414465314 |
申请日期 |
2014.08.21 |
| 申请人 |
The Procter & Gamble Company |
发明人 |
BONAUER Christoph Hans Peter;MYATT Graham John;WANG Nan |
| 分类号 |
A45D19/00;A61Q5/10;A61K8/18 |
主分类号 |
A45D19/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for colouring hair comprising the steps of:
i) providing a first hair colouring composition and a second hair colouring composition, wherein the pH of the second hair colouring composition is lower than the pH of the first hair colouring composition; ii) applying a portion or all of the first hair colouring composition to the hair; iii) applying a portion or all of the second hair colouring composition to the hair, wherein each the first and the second hair colouring compositions comprises one or more oxidizing agents and one or more compounds selected from the group consisting of oxidative dye precursors, alkalizing agents and mixtures thereof. |
| 地址 |
Cincinnati OH US |
