Package Dyeing Machines for Yarn
topic
Package dyeing machines mount yarn wound on perforated dye springs or cheese carriers in a pressure vessel, circulating dye liquor radially through the yarn package from inside out and outside in alternately through the perforated spindle carrier system at liquor ratios of 5 to 10 litres per kilogram, with carrier loading capacity from 50 to 500 kilograms per machine batch for dyeing cones, cheeses, and warps beams.
Role
Provides the primary dyeing technology for yarn packages used in warp knitting, weaving beam preparation, and colour yarn production for fancy weaving and knitting, with package dyeing enabling dyeing of yarn in its final package format avoiding the respooling required when dyeing in hank form, with liquor flow rate and flow direction programming governing the dye penetration uniformity that determines shade levelness from package core to outside surface.