Recycling of PET plastic bottles can not only solve environmental protection problems, but also realize resource recycling and alleviate the contradiction of insufficient PET raw materials in China. At present, the recycling rate of PET plastic bottles in China is very high. The development of recycling technology is also very rapid. But at the same time, it also faces some problems. Re-dyeing is a major difficulty, but polyester masterbatch can make it look new.

At present, the main use of cleaned and dried PET bottle flakes is to make polyester staple fibers. The main reason is that PET resins used as fibers have low intrinsic viscosity requirements. Even if a small number of molecules of the bottle flakes undergo hydrolysis or processing during the processing Degradation will not affect the spinning process to obtain the desired product.

Polyester staple fiber can be used to produce a variety of materials and products such as hollow fillers, geotextiles, felts, and carpets for clothing, mattresses and plush toys.

Polyester staple fiber products are mostly white, but they often need to be dyed when making clothing. The use of polyester masterbatches to dye PET bottle pieces is better than the brand-new fiber-grade PET resin chips. Because its intrinsic viscosity is slightly reduced during processing, it will not affect the dispersion performance and addition effect of the masterbatch. The requirements of silk processing technology have more obvious advantages in production costs.

It can be seen that polyester masterbatch is one of the essentials for the gorgeous transformation effect of recycled PET bottle flakes.