Method for coloring hair

Details Method for coloring hair Method for coloring hair

2005-07-12

2005-07-12

Einsmann, Margaret (Department: 1751)

Bleaching and dyeing; fluid treatment and chemical modification

Dyeing involving animal-derived natural fiber material ,...

Hair dyeing

C008S406000, C008S407000, C008S410000, C008S411000, C008S421000, C008S426000, C008S437000, C008S454000, C008S455000, C008S542000

Reexamination Certificate

active

06916343

ABSTRACT:
A method for coloring keratin fibers is provided that includes at least two steps. In one step, the keratin fibers are treated with a pretreatment composition containing at least one substantive dye. In another step, the keratin fibers are treated with a composition containing at least one synthetic dye or synthetic dye precursor after applying the pretreatment composition.

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