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Modification of cotton to improve its dyeability. Part 2 – pretreating cotton with a thiourea derivative of polyamide–epichlorohydrin resins
Author(s) -
Burkinshaw S M,
Lei X P,
Lewis D M,
Easton J R,
Parton B,
Phillips D A S
Publication year - 1990
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.1478-4408.1990.tb01227.x
Subject(s) - epichlorohydrin , thiourea , polyamide , chemistry , yield (engineering) , derivative (finance) , polymer chemistry , nuclear chemistry , organic chemistry , materials science , composite material , financial economics , economics
A new method of pretreating cotton to improve its dyeability, using an aqueous solution containing polyamide–epichlorohydrin (PAE) resin and thiourea is introduced. The effect of dyebath pH on the colour yield, fixation and build–up of Procion HE, H and MX (ICI) dyes on the pretreated cotton, together with the quality of the dyeings obtained when using the new method and mechanistic implications, are discussed.