One-bath process dyeing for cotton/wool blended yarn.

The Lanasol dyes and LS dyes were chosen for dyeing stuffs in this essay. By adding the special auxiliary YDR developed independently before dyeing to give the cotton/wool blending yarn pretreatment, the affinity between reactive dye and the cotton fiber was increased. Thus the problem of light colored cotton and deep colored wool in dyeing the cotton/wool blending yarn was resolved, and the yarn was imparted a good homochroma. The treating condition of the yarn by auxiliary YDR, the dyeing condition by Lanasol dyes were studied here. Finally a whole new set processing of the YDR treating and one - bath dyeing process were concluded. [ABSTRACT FROM AUTHOR]