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This paper describes the dyeing of natural and man-made fibres, in supercritical carbon dioxide, with C.I. Disperse Yellow 23 modified with 2-bromoacrylic acid and 1,3,5-trichloro-2,4,6-triazine as reactive groups. Cotton was dyed using these reactive disperse dyes without any pre-treatment of the fibre; on wool and silk, the colour depth was higher than on cotton. The wash, rub and light fastness...
Dyeing of protein fiber in non-aqueous media has been investigated using a reverse micellar solution as a dye bath. Conventional acid dye and direct dye solubilized in the interior of reverse micelle was satisfactorily adsorbed on silk even without the presence of auxiliary. It has become obvious that adsorption manner of anionic dye on silk in this system is similar to that in aqueous system. On...
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