The invention relates to the field of
textile technology, and provides a low-temperature weak-damage
wool dyeing process. The low-temperature weak-damage
wool dyeing process comprises the following steps of (1) carrying out pretreatment; (2) performing
hydrogen peroxide-
formic acid oxidation pretreatment; (3) carrying out
dyeing; (4) performing pressure relief; (5) carrying out alkali color fixingtreatment; (6) carrying out soaping; (7) carrying out
water washing; and (8) performing repairing treatment, and taking out of a cylinder. The process has the beneficial effects that (1) through a triple swelling synergistic effect of the
formic acid-
hydrogen peroxide oxidization
system, dyeing under pressure and
glutamine transaminase repairing, low-temperature dyeing can be realized and the damage to the
wool fibers is reduced, the dyeing can be performed at the dyeing temperature of 75-80 DEG C, the dyeing time is shortened by 30-35%, and the problem of yellowing caused by long-term boiling dyeing of wools at a high temperature can be avoided; and 2) through the process, the
dye uptake and the dyeing fastness are both improved by 5-6% compared with those in the conventional dyeing method, the
fiber strength, breaking elongation, and the
moisture regain rate are all improved in a relatively high degree, the use amount of dye is highly reduced, and the enterprise production cost is lowered.