STUDIES ON UNION DYEING OF ACETATE AND VISCOSE BLENDED FABRICS

Viscose rayon was dyed with various direct cotton dyes and the relation between stimulus values (S) and dyeing temperature was observed. Stimulus values were observed by means of the spectrophotometer.By this method direct cotton dyes were classified into various types, but the classification was more difficult than in the case of acetate dyes. In general, stimulus values (S) of the most of direct cotton dyes are not influenced by the dyeing temperature. So, adding to the previous report, we were preferred to dye the blended fabrics at high temperature (about 90°C) by the so-called “one bath method”.