Cold-pad batch dyeing process for bulk fiber

Abstract

The invention relates to the field of bulk fiber dyeing, in particular to a cold-pad batch dyeing process for bulk fibers, which comprises the steps of: (1) bulk fiber web formation: forming a uniform fiber layer with bulk fibers by an automatic bale plucker and a web forming machine; (2) padding: controlling a bleaching mangle expression to be 100-120 percent and a dyeing mangle expression to be 120-140 percent, only adding a refining agent and a bleaching agent for pretreatment into an immersion solution tank during bleaching, and adding dyes, a penetrant and an alkaline agent into the immersion solution tank during dyeing; (3) stacking after uniform padding and rolling: performing stacking on a cold-pad batch unit after the fiber layer is rolled so as to complete bleaching or dyeing; and (4): washing and drying: making the fibers treated by a washing machine and a soaping tank after dying and then treated by a drying machine. The cold-pad batch dyeing process has the advantages of little pollution and low energy consumption.

Description

technical field [0001] The invention relates to the field of loose fiber dyeing, in particular to a cold pad-batch dyeing process of loose fiber. Background technique [0002] The traditional process of dyeing is to put the loose fiber to be dyed into the corresponding equipment, add water, dyeing materials, auxiliaries, etc., and carry out the pre-treatment, dyeing, post-treatment and other processes under the action of the pump. Each process requires a lot of water, at least 80 tons of water is needed to dye 1 ton of loose fiber, and the daily sewage discharge of a dyeing company that produces 100 tons of loose fiber is about 10,000 tons. Each ton of bulk fiber consumes about 500 degrees of electricity and about 8 tons of steam. The current bulk fiber dyeing equipment cannot achieve energy saving and emission reduction. The liquor ratio during dyeing reaches about 1:8, and about 40% of the dyes and auxiliaries cannot be effectively used during dyeing. The sewage t...

AI Technical Summary

Problems solved by technology

The current bulk fiber dyeing equipment cannot achieve energy saving and emission reduction. The liquor ratio during dyeing reaches about 1:8, and about 40% of the dyes and auxiliaries cannot be effectively used during dyeing. The sewage treatment is difficult and the discharge volume is high. Big

Images