Flash dyeing basic textile yarns - extending method to dyeing non basic natural or synthetic yarns

摘要

In patent DT 2021110 the flash dyeing of basic textile yarns in a non aqs. sol. contg. a polarised solvent for the dye and a non-polarised thinning agent in which the dye is only slightly soluble or is insoluble, is claimed. During dyeing the solvent is drawn off in a liq. or gaseous phase and recirculater as a diluent. In this patent the method is extended to include the flash dyeing of non-basic natural or synthetic textile yarns.