The invention discloses a
dyeing low-temperature post-treatment auxiliary of a pure
polyester fabric and
polyester-containing fabrics and a post-treatment technology thereof. The post-treatment auxiliary is prepared from the following components: 300-600 g / kg of
rongalite, 50-400 g / kg of biological
enzyme and 100-500 g / kg of Gemini cationic surface
active agent. By compounding the
dyeing post-treatment auxiliary of the
polyester fabric or the polyester-containing fabric, then using the post-treatment auxiliary for conducting
dyeing low-temperature post-treatment on the polyester fabric or thepolyester-containing fabric, and using a synergistic effect mechanism among the three components, low-temperature post-treatment
processing is conducted on of the polyester fabric or the polyester-containing fabric is realized, the defect that traditionally, the polyester fabric or the polyester-containing fabric needs to be subjected to post-treatment under a high temperature condition is overcome, dye which is washed into a solution does not
stain the fabrics any more, moreover, post-treatment printing and
dyeing wastewater is colorless, which is beneficial for
wastewater treatment, and thefabrics subjected to post-treatment have soft hand feelings, and are excellent in fastness.