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High affinity, high efficiency fibre‐reactive dyes
Author(s) -
Smith Brent,
Berger Rebecca,
Freeman Harold S
Publication year - 2006
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.1478-4408.2006.00032.x
Subject(s) - cyanuric chloride , dyeing , chemistry , reactive dye , salt (chemistry) , cysteamine , cysteine , combinatorial chemistry , chemical engineering , polymer chemistry , nuclear chemistry , organic chemistry , engineering , enzyme
A straightforward two‐step method for modifying commercial dichlorotriazine‐based fibre‐reactive dyes prior to their use in the dyeing process can greatly improve affinity and fixation efficiency on cotton, and reduce the salt requirements. The modification used in this study involved prereacting the commercial dyes with either cysteine or cysteamine followed by reaction of the resulting intermediate with cyanuric chloride. Cotton fabric dyed with the modified dyes had technical properties that were essentially equal to those obtained from the unmodified commercial dyes.