Polyester material advantage
Introduction The specific gravity of polyester is 1.38; the melting point is 255 ~ 260 ° C, the bonding starts at 205 ° C, the safe ironing temperature is 135 ° C; the suction humidity is very low, only 0.4%; the breaking strength of the filament is 4.5 ~ 5.5 g / denier , short…