Dye-containing pellets for dyeing keratin fibres

Bleaching and dyeing; fluid treatment and chemical modification – Dyeing involving animal-derived natural fiber material ,... – Hair dyeing

Reexamination Certificate

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Details

C008S406000, C008S407000, C008S411000, C008S435000, C008S456000, C008S463000, C008S526000, C008S552000, C008S553000, C008S559000

Reexamination Certificate

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07458992

ABSTRACT:
The present patent application relates to dye-containing pellets obtained by (a) homogeneous mixing of a starting material containing at least one natural and/or synthetic dye with a suitable carrier material and then coating with a suitable encapsulation material or (b) coating a suitable carrier material with a mixture of at least one natural and/or synthetic dye and at least one suitable encapsulation material, to the use of said pellets for preparing colorants for keratin fibers and to the colorants based on said pellets.

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