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Neutral‐fixing reactive dyes for cotton. Part 1 —synthesis and application of quaternised S ‐triazinyl reactive dyes
Author(s) -
Croft S N,
Lewis D M,
Orita R,
Sugimoto T
Publication year - 1992
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.1478-4408.1992.tb01439.x
Subject(s) - chemistry , reactive dye , reactive intermediate , polymer chemistry , organic chemistry , dyeing , catalysis
A number of different tertiary amines have been employed to prepare the corresponding quaternised triazines from a selected monochloro‐s‐triazine reactive dye. Preparation conditions have been established along with suitable analytical methods. The reactivity of the quaternised dyes with cellulose has been determined, special attention being paid to neutral fixation at high temperatures (100°C). Good neutral fixation was achieved with all the tertiary amine derivatives studied. In the case of the nicotinamide derivative an anomalous hydrolysis reaction involving ring opening was noted; this reaction led to the formation of aminotriazine rather than the expected hydroxytriazine.