D - Textiles – Paper – 06 – P
Patent
D - Textiles, Paper
06
P
167/302
D06P 1/32 (2006.01) D06P 3/08 (2006.01)
Patent
CA 1255232
IMPROVED HAIR DYE COMPOSITION AND PROCESS FOR USING THE SAME ABSTRACT OF THE DISCLOSURE The subject invention concerns novel dye compo- sitions and a process for dyeing keratinous fibers, for example, hair, to give a pleasing and stable colored product. The dye composition is a novel combination of three elements to give a dye that, unexpectedly, has highly desirable dyeing properties. This unique combination comprises (1) a suitable organic compound to assist dye penetration, (2) dye precursors including dopamine, D-dopa, L-dopa, D,L-dopa, or analogs thereof, and (3) iodate or periodate. Desired color variations can be obtained by the use of appropriate color modifiers.
476911
Macrae & Co.
Repligen Corporation
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