Hair dye composition and method

Details Hair dye composition and method Hair dye composition and method

1990-06-18

1991-07-23

Barr, Josephine

Bleaching and dyeing; fluid treatment and chemical modification

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

Hair dyeing

8406, 8409, 8410, 8415, 8416, A61K 713

Patent

active

050340140

ABSTRACT:
An aromatic amine, or a cosmetically acceptable salt thereof, is reacted with an aromatic aldehyde in a reaction medium containing water. 2,6-dihydroxypyridine, or a cosmetically acceptable salt thereof, is reacted with hydrogen peroxide in a reaction medium containing water. The two reaction mediums are combined so that both reactions are carried out together on hair. Preferably, the two reactions are carried out together in the same reaction medium. pH is adjusted so that the pH of the common reaction medium is about 5 to 7. Surprisingly, substantially no cross reaction occurs between the two reactions on hair.

REFERENCES:
patent: 3957424 (1976-05-01), Zeffren et al.
patent: 4904275 (1990-02-01), Grollier

Affiliated with

Also associated with

Rating

Hair dye composition and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hair dye composition and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hair dye composition and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-430119