Bleaching and dyeing; fluid treatment and chemical modification – Dyeing involving animal-derived natural fiber material ,... – Hair dyeing
Patent
1980-08-11
1982-07-13
Clingman, A. Lionel
Bleaching and dyeing; fluid treatment and chemical modification
Dyeing involving animal-derived natural fiber material ,...
Hair dyeing
8647, 8917, C09B 6910
Patent
active
043392377
ABSTRACT:
Soluble polymeric colorants composed of free amine groups and chromophoric groups covalently bonded to an organic backbone are disclosed. The number of free amine groups is not less than one-half the number of chromophoric groups. The colorants are characterized by being free of sulfonate, phosphonate and carboxylate groups. The preparation and use of these colorants is also disclosed.
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Wang Patricia C.
Wingard, Jr. Robert E.
Benz William H.
Ciotti Thomas E.
Clingman A. Lionel
Dynapol
Stepno Norman H.
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