Levelling agent is the auxiliary that has affinity to fiber and dyes, which can promote dye exhaustion, so that they can quickly penetrate into the fiber, achieving dispersion and obtain uniform dyeing effect. It can promote a variety of fabric surface levelness, improve damaged tip of wool fiber, make the wool in its original quality at 85℃.
It should be noted that it can not be combined with other anionic additives, and can not be excessive if the amount is more than 2%, it will reduce the dye absorption rate.
