发明授权
US5891199A Polymer dyestuffs and their use for dyeing fibres 失效
聚合物染料及其用于染色纤维的用途

Polymer dyestuffs and their use for dyeing fibres
摘要:
The proposal is for novel polymer dyestuffs obtained by condensing cationic biopolymers, e.g. chitosame, with dyestuffs which have a basic group, preferably a halogen function. The dyestuffs spread as a film on the fibers and can easily be washed out.
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