The invention belongs to the technical field of
dyeing and finishing, and relates to a
dyeing and finishing method capable of preventing a white spot problem of a spandex-containing delustering chinlon fabric, which sequentially comprises a pre-
dyeing treatment stage, a pre-shaping stage, a one-bath dyeing stage, a washing fixation stage and a shaping stage, in the pre-dyeing treatment stage, the fabric is sequentially subjected to the working procedures of open-width
desizing, open-width preshrinking and
desizing, deoiling and washing; the procedures of open-width preshrinking and
desizing, deoiling and washing are divided into a continuous preshrinking stage, a desizing, deoiling stage and a washing stage; 2-3 stages of temperature and
tension control are carried out in the preshrinking stage; the temperature of each section is gradually increased, the temperature of the first section is not lower than 70 DEG C, and the temperature of the last section is not higher than 90 DEG C; the
tension control of each section is gradually increased, the
tension control of the first section is not lower than 30N, and the tension control of the last section is not higher than 40N. According to the finished fabric obtained through the dyeing and finishing method, the white spot occurrence rate is greatly reduced, and the defects such as dyeing defects are obviously reduced.