The application of heterobifunctional reactive dyes to nylon 6,6: process modifications to achieve high efficiencies

Authors
Burkinshaw, SM Son, YA Bide, MJ
Citation
Sm. Burkinshaw et al., The application of heterobifunctional reactive dyes to nylon 6,6: process modifications to achieve high efficiencies, DYE PIGMENT, 48(3), 2001, pp. 245-251
Citations number
15
Categorie Soggetti
Chemical Engineering
Journal title
DYES AND PIGMENTS
ISSN journal
01437208 → ACNP
Volume
48
Issue
3
Year of publication
2001
Pages
245 - 251
Database
ISI
SICI code
0143-7208(200103)48:3<245:TAOHRD>2.0.ZU;2-L
Abstract
A heterobifunctional monochlorotriazine/vinyl sulphone (MCT/VS) reactive dy e was applied to nylon 6,6 using various pH and temperature conditions. Opt imum dye exhaustion and fixation were achieved at pH 4 and 98 degreesC. The form in which the VS moiety was present during dyeing was examined by capi llary electrophoresis. Preconversion of the dye to its VS form gave improve d fixation and modified dyeing methods in which alkali additions were made at various points during the dyeing were used to achieve high dye fixation. (C) 2001 Elsevier Science Ltd. All rights reserved.