Process for the direct dyeing of human keratin fibres using cati

Details Process for the direct dyeing of human keratin fibres using cati Process for the direct dyeing of human keratin fibres using cati

1996-09-30

1998-01-27

Lieberman, Paul

Bleaching and dyeing; fluid treatment and chemical modification

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

Hair dyeing

8657, 8933, A61K 713

Patent

active

057117659

ABSTRACT:
A process for the direct dyeing of keratin fibers, characterized in that it comprises in placing keratin fibers, to which a dye composition containing at least one cationic direct dye has been applied, in contact with a gas containing water vapor, the temperature of the gas preferably being above 75.degree. C., the contact time between the gas and the fibers to be dyed preferably not exceeding two minutes. According to the invention, the hair is dyed uniformly, from the roots to the tips, regardless of the state of the hair.

REFERENCES:
patent: 4166473 (1979-09-01), Bauer et al.
patent: 4341229 (1982-07-01), Bauer et al.
patent: 5104413 (1992-04-01), Ikeda
English language translation of FR 1,011,151, AMICA Co., pp. 1-14, Jun. 1952.
Colour Index, Third Edition, vol. 4, The Society of Dyes and Colourists, p. 4470, C1 #52020, 1971.

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