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Application of heterobifunctional reactive dyes on silk
Author(s) -
Agarwal Deepali,
Sen Kushal,
Gulrajani M L
Publication year - 1996
Publication title -
journal of the society of dyers and colourists
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 0037-9859
DOI - 10.1111/j.1478-4408.1996.tb01748.x
Subject(s) - silk , polymer science , chemistry , polymer chemistry , materials science , composite material
The behaviour of heterobifunctional reactive dyes, containing a monochlorotriazine and a vinyl sulphone group, on silk has been investigated. Maximum exhaustion and fixation were obtained in a neutral medium at 90d̀ C. The addition of sodium sulphate was found to promote the exhaustion of reactive dyes at p H values above the isoelectric point of silk. A reduction in the solubility of dyed silk indicated that crosslinks were formed with bifunctional reactive dyes.