Textile Industry: Filament (FDY/POY) is used for weaving fabrics, while staple fiber is used for filling materials.
Industrial Sector: High-strength chips are used for tire cord (breaking strength ≥ 8.5 cN/dtex).
Packaging Materials: Bottle-grade chips must be FDA certified (acetaldehyde content ≤ 1 ppm).
Viscosity Matching: The viscosity of chips used for spinning must be compatible with the equipment and process (e.g., POY spinning requires a viscosity of 0.63-0.68 dl/g).
Impurity Control: Ash content ≤ 0.05%, otherwise it will easily clog the spinneret (orifice diameter is typically 0.15-0.25 mm).
Storage Conditions: Moisture-proof packaging is required (moisture content ≤ 0.4%) to prevent clumping due to high temperatures.
