1.According to the composition and structure, it can be divided into: blending, copolymerization, crystallization, liquid crystal, annular polyester chips, etc.
2.According to the performance, it can be divided into: colored, flame retardant, antistatic, hygroscopic, anti-pilling, antibacterial, whitening, low melting point, tackified (high viscosity) polyester chips, etc.
3.According to the purpose, it can be divided into fiber grade polyester chips, bottle grade polyester chips and film grade polyester chips (mainly due to different process indexes). Fiber-grade polyester chips can be divided into super-bright (bright), bright, semi-dull and (full) dull polyester chips according to the different content of matting agent tio2. There are also cationic polyester chips.