The masterbatch is a mixture of polyester or nylon 6 and a pigment (or a dye in a polyester or nylon melt). The dye content in the carrier is as high as 30% to 40% by weight. The special screw is used to mix the molten polyester or nylon in a predetermined ratio with the pigment or dye in the form of a slice.The choice of pigment is that the compatibility with polyester or nylon 6 is good and the temperature is about 300 ° C Good dispersibility in the carrier, and other firmness against fiber end use (eg, lightfast, washable, abrasion resistant).
Fiber masterbatch development prospects are broad.With the adjustment of national industrial policy and energy conservation and emission reduction enterprises to continuously strengthen the policy support, masterbatch coloring is gradually taking the traditional dyeing process market share to account for China's chemical fiber production 80 % Of polyester, for example, the current polyester industry demand for masterbatch is about 250,000 tons, and still at an annual rate of 30% growth.However, China's total production of polyester fiber masterbatch in 2007 was only about 30,000 tons , And mostly middle and low conventional products. Fine denier, ultra-fine denier fiber masterbatch and functional masterbatch market demand urgency.

Specific is the above content, but the overall summary is one, masterbatch fiber is a masterbatch method for spinning before coloring, is recognized as the environmental coloring method produced by the fiber products.