Lm. Jiang et Zh. Zhu, STUDIES ON NEW REACTIVE DYES HAVING 2 VINYL SULFONE GROUPS - PART I -SYNTHESIS AND APPLICATION PROPERTIES, Dyes and pigments, 36(4), 1998, pp. 347-354
Three novel reactive dyes having two vinyl sulfone fiber-reactive grou
ps were synthesized and their application properties studied. Dye 1 ha
ving two m-(beta-sulfatoethyl-sulfonyl)aniline moities possesses excel
lent dyeing properties with a fixation value above 90%. The dyeing met
hod of the new reactive dyes was improved by the amount and mode of ad
ded alkali (Na3PO4). When the dyes are taken up at 40 degrees C, and t
he dyeing temperature then raised to 60 degrees C after the first addi
tion of Na3PO4 the dyeing results were more satisfactory. (C) Elsevier
Science Ltd.