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HAIR DYEING PROCESS EMPLOYING AT LEAST ONE DIHYDROXYFLAVANOL, A MANGANESE OR ZINC SALT, HYDROGEN PEROXIDE, (BI)CARBONATE, AN ALKALINE AGENT AND A MAGNESIUM, MOLYBDENUM OR CALCIUM SALT
专利权人:
发明人:
申请号:
EP12730900.3
公开号:
EP2723451A1
申请日:
2012.06.22
申请国别(地区):
EP
年份:
2014
代理人:
摘要:
The present invention relates to a process for dyeing keratin fibres, in particular human keratin fibres such as the hair, in which said fibres are treated with one or more cosmetic compositions containing, taken together or separately in said composition(s), the following ingredients : a) one or more dihydroxyflavanol derivative(s), b) one or more manganese salt(s) or one or more zinc salt(s), c) hydrogen peroxide or one or more hydrogen peroxide- generating system(s), d) one or more (bi)carbonate(s) or one or more (bicarbonate- generating system(s), e) one or more alkalinizing agent(s) other than the bicarbonate(s), and f) one or more metal salt(s) chosen from magnesium salts, molybdenum salts and calcium salts it being understood that the pH of at least one of the compositions comprising at least one o f the ingredients a), b), d), e) and/or f) is alkaline, i.e. greater than 7, and that the ingredient f) is applied together, i. e. as co-treatment, with at least one o f the other ingredients a) to e).
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