Pure color acrylic yarn is divided into pure color glossy acrylic yarn and pure color semi-gloss acrylic yarn. Bulky acrylic yarn is also divided into bright acrylic yarn and bulky semi-light acrylic yarn. Solid acrylic yarn is generally expressed in English, most of which are single yarn, such as A10, while expanded acrylic yarn is generally expressed in public, most of which are ply yarn and single yarn. Another kind of acrylic yarn is flame-retardant acrylic yarn.

Polypropylene fiber has a high requirement for the purity of raw material acrylic resin, and the total content of various impurities should be less than 0.005%. The second monomer of polymerization is mainly methyl acrylate, which can also be methyl methacrylate, in order to improve the spinnability and the handle, softness and elasticity of the fiber; The third monomer is mainly used to improve the dyeing property of the fiber, which is generally itaconic acid containing weak acid dyeing group, sodium propene sulfonate containing strong acid dyeing group, sodium methylpropene sulfonate, sodium p-methylpropene phthalamine benzenesulfonate, and methyl vinyl chloride containing alkaline dyeing group.