1.CMC is used as woof trimming agent replacing traditional starch paste material, which can reduce pollution of woof during sizing and desizing. At the same time, CMC can form a membrance on woof which reduces "drop woof" and "decollation"sign.

2.CMC can be used as printing material for dye-trimming industry and it can improve hydrophilic force and osmosis force of dye material, making dying more even and reducing chromatism.