What is the dyeing performance of polypropylene staple fiber?

Dyeing performance of polypropylene staple fiber. The polypropylene in polypropylene staple fiber is a non-polar structure. It does not contain the gene that other fibers usually contain, which can bind the dye molecule by means of polar bond or hydrogen bond, so it is not modified. Polypropylene cannot be dyed. Commercial polypropylene colored fibers are prepared by adding color masterbatches. Although this colored fiber is better in color vividness and color fastness, there are many limitations in chromatography. Frequent replacement of varieties makes manufacturers unable to handle it. In addition, the existing masterbatch used in the production of fine denier staple fiber also has many problems. Therefore, the production of dyeable polypropylene in polypropylene staple fiber can better meet the needs of post-processing manufacturers.

There are various ways of dyeing and modifying polypropylene fiber in polypropylene staple fiber, such as fiber surface treatment, copolymer body modification and body modification with dyeable components added.