Dye composition for keratinous fibers

Details Dye composition for keratinous fibers Dye composition for keratinous fibers

A - Human Necessities

61

K

A61K 8/41 (2006.01) A61K 8/46 (2006.01) A61K 8/49 (2006.01) A61K 8/81 (2006.01) A61Q 5/10 (2006.01)

Patent

CA 2337578

Provided is a dye composition for keratinous fibers, which comprises (A) a hydrolyzate of a lower alkyl vinyl ether/maleic anhydride copolymer partially crosslinked with a terminal unsaturated dime compound, or a monoalkyl ester of the hydrolyzate; and (B) a dye. The dye composition for keratinous fibers according to the present invention has a stable and appropriate viscosity even in a wide pH range and even in a system containing a salt or solvent at a high concentration; and has excellent usability and dyeing properties. It is particularly suited for use with an acid dye.

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