Ej. Blanchard et al., FACTORS AFFECTING THE DYEABILITY OF COTTON CROSS-LINKED WITH POLYCARBOXYLIC ACID, Journal of the Society of Dyers and Colourists, 112(4), 1996, pp. 108-113
Improved dyeing properties of cotton crosslinked with polycarboxylic a
cids are produced by addition of reactive nitrogenous additives, such
as alkanolamines and hydroxyalkyl quaternary ammonium salts, to the tr
eatment formulation. Both N-methylolamides and polycarboxylic acids ar
e effective for crosslinking cotton and bonding reactive nitrogenous a
dditives to the cellulosic substrate, but dyeing characteristics of th
e finished fabrics are very different. In this study, the influence of
the reactive additives and dyebath pH on the colour yields of cotton
crosslinked with polycarboxylic acids and then dyed with anionic dyes
were determined. Emphasis is on the dyeing properties of cotton finish
ed with 1,2,3,4-butanetetracarboxylic acid or citric acid non-formalde
hyde crosslinking agents, and alkanolamine hydrochloride or hydroxyalk
yl quaternary ammonium salt additives.