Use of tea-polyphenol and/or tea-pigment as dye and products thereof
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United States of America Patent
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May 27, 2014
Grant Date -
Oct 3, 2013
app pub date -
Nov 18, 2011
filing date -
Nov 19, 2010
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Abstract
The present invention relates to the use of tea-polyphenol and/or tea-pigment as a dye and its products, and specifically relates to use of a combination of tea-polyphenol and/or its oxidation product, tea-pigment, as a dye active and a metal salt for dyeing human or animal hair, or use of the combination for the preparation of a product for dyeing human or animal hair, and to a hair dyeing product or a hair dyeing combination product comprising tea-polyphenol and/or tea-pigment. The present invention has the advantages including good dyeing fastness, natural and bright, not-stimulating, not-allergenic, not-mutagenic, no damage to hair, simple to operate and short time consuming.
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