Polyester masterbatch is a mixture of polyester and pigment (or a dye melted in a polyester or nylon melt). The content of the dye in the carrier is as high as 30% to 40% by weight. The production of masterbatch is special. The screw mixes the molten polyester or nylon with a pigment or dye in a predetermined ratio and sells it in the form of a slice. The principle of pigment selection is: compatibility with polyester or nylon 6, high temperature resistance of about 300 ° C, in the carrier Good dispersibility and other firmness for fiber end use (eg lightfastness, washability, abrasion resistance).

The development prospect of polyester masterbatch is broad. With the adjustment of national industrial policies and the continuous strengthening of policy support for energy conservation and emission reduction enterprises, masterbatch coloring is gradually occupying the market share of traditional dyeing process. For example, polyester is more than 25%. At present, the demand for masterbatch in the polyester industry is about 250,000 tons, and it is still growing at a rate of 30% per year. However, the total output of polyester fiber masterbatch in China is only about 30,000 tons in 2007. Most of them are medium and low grade conventional products. The market demand for fine denier, ultrafine denier masterbatch and functional masterbatch is urgent.

The above is some views on the polyester masterbatch, but in general it is a sentence, the masterbatch fiber is pre-spinning by the masterbatch method, which is recognized as a fiber product produced by environmentally friendly coloring methods.