Traditional Oxford cloth dyeing is carried out under acidic conditions, while the pre-treatment of Oxford cloth is all carried out under alkaline conditions. Therefore, sometimes due to the incomplete washing of pre-treatment, alkali often remains on the cloth, accounting for nearly 70% of it. of dyeing defects can be attributed to insufficient pre-treatment. Therefore, if dyeing can be done under alkaline conditions, there are at least five major advantages:
(1) More than 50% of the oligomers are removed, which can greatly reduce the impact of the oligomers on the cloth and the dyeing machine;
(2) Due to the stable pH value, dyeing reproducibility is higher;
(3) Under normal circumstances, reduction cleaning can be omitted to reduce production costs;
(4) The dyeing process time is shortened and labor productivity is improved;
(5) Water and energy costs are saved. </p
