PROCESS FOR PRODUCING A DYED AND FINISHED LYOCELL FABRIC

摘要

A dyed and finished lyocell fabric having a clean, soft-touch finish is produced by a process in which fibrillation is induced in a wet processing step prior to dyeing. This step is carried out under pressure at high temperature using an aqueous carboxylic acid solution and enables the io unwanted longer fibre ends produced by fibrillation to be removed. Acetic acid and formic acid are the preferred carboxylic acids. Processing may be carried out on a fabric rope using an air-jet dyeing machine both for the fibrillation and the dyeing steps.