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Covalent fixation of hydroxyethyl sulphone dye on cotton by the use of crosslinking agent via a pad‐batch process
Author(s) -
Yao J,
Lewis D M
Publication year - 2000
Publication title -
coloration technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 1472-3581
DOI - 10.1111/j.1478-4408.2000.tb00038.x
Subject(s) - covalent bond , chemistry , hydrolysis , fixation (population genetics) , triazine , reactive dye , polymer chemistry , organic chemistry , biochemistry , gene , dyeing
A trifunctional reactive crosslinker, 2,4,6‐tri{ρ‐[(2′‐sulphatoethyl)sulphonyl]phenylamino}‐1,3,5‐triazine (Tri‐SES) was synthesised and co‐applied with hydrolysed Cl Reactive Black 5 (hydroxyethyl sulphone dye) to cotton to achieve dye‐fibre covalent bonding via a cold pad‐batch process. Several factors affecting the dye—crosslinker‐cotton covalent fixation reactions have been studied and are discussed in this paper. It was found that the dye fixation was strongly dependent on the alkali type and concentration. Very high fixation values ( ca. 97%) were obtained under the optimised conditions.