PET polyester fiber chips

Description

1. Product Overview

PET Polyester Fiber Chips are high-purity thermoplastic polymer granules produced via optimized melt-phase polycondensation, serving as the fundamental feedstock for global polyester fiber and engineering plastic value chains. Primary industrial applications include staple fiber, partially oriented yarn (POY), fully drawn yarn (FDY), and industrial-grade filament extrusion. The key value proposition lies in delivering exceptional intrinsic viscosity (IV) consistency, low acetaldehyde content, and superior spinnability—directly translating to reduced filament breakage and higher first-quality yield for converters. Strategically, this product is critical for market participants seeking to secure midstream petrochemical conversion efficiency amid volatile raw material pricing and tightening sustainability regulations.

2. Key Specifications & Technical Characteristics

• Chemical Composition: Polyethylene terephthalate (PET), virgin grade, MEG and PTA derived

• Purity Level: ≥99.5% (primary component); residual acetaldehyde ≤1.0 ppm; moisture content ≤0.2% as shipped

• Intrinsic Viscosity (IV): 0.62 – 0.68 dL/g (±0.02 tolerance) for textile fibers; 0.80 – 0.85 dL/g for industrial yarn (available upon spec)

• Physical Form: Solid cylindrical pellets (chips)

• Color: Semidull (TiO₂ content 0.30–0.35%); Bright (TiO₂ ≤0.01%); Super Bright (TiO₂ <0.005%)

• Particle Size: 3.5 × 3.0 × 2.5 mm (±0.2 mm typical)

• Bulk Density: ~800–850 kg/m³

• Melting Point (DSC): 255 – 260°C

• Packaging Options: 1,100 – 1,200 kg net jumbo woven bags (weather-protected liner); 25 kg sewn valve bags (available upon request)

• Shelf Life: 18 months when stored in original unopened packaging at ≤40°C, relative humidity ≤70%, away from UV exposure

3. Core Industrial Applications

• Primary Industries: Textile manufacturing (woven & nonwoven), industrial fiber production, packaging (strapping), and automotive interior components.

• Specific Operational Use Cases:

  • Staple fiber spinning (cotton-type and hollow conjugate fiber): Achieves >98% spinning efficiency and reduces fly waste by 15% vs. low-grade chips due to uniform chip geometry.

  • POY / FDY for apparel fabrics: Low oligomer content (≤1.2%) minimizes spinneret deposits, extending filter pack life by 20–25%.

  • Industrial yarn (high-tenacity): High-IV grade (0.84 dL/g) delivers breaking tenacity >8.0 g/den for tire cord and geotextiles.

• Why this product outperforms alternatives: Consistent crystallization behavior yields narrower birefringence distribution in drawn fibers, directly increasing fabric dye uptake uniformity. The low moisture pick-up during transit reduces pre-drying energy costs by approximately 8–10% compared to standard grades.

4. Competitive Advantages

• Quality consistency: Statistical process control (SPC) for every production lot; IV coefficient of variation (CV) <0.5% per batch – auditable via COA with each shipment.

• Supply reliability: Vertically integrated upstream PTA/MEG sources; dual production lines with 120 kt annual capacity; safety stock held in three regional hubs (Asia, Europe, Americas).

• Logistics capability: Container-ready JIT scheduling; door-to-door tracking; ability to load 24 MT into a 20′ container or 26 MT into a 40′ HC container without exceeding payload limits.

• Price competitiveness: Direct-from-manufacturer pricing removes trader markups; monthly index-linked contracts available for high-volume buyers.

• Sustainability: ISCC+ certified mass-balance recycled content (up to 30% post-consumer PET feedstock) available upon request; full REACH and RoHS compliance documentation.

• Technical support: In-house application engineers provide spin-finish optimization and troubleshooting; pre-shipment lab reports including DSC curve, filtration test (DF value), and thermal stability analysis.

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): 20 metric tons (MT) – equivalent to one standard 20′ container

• Loading capacity per container:

  • 20′ dry container: 20 – 22 MT (depending on jumbo bag configuration)

  • 40′ HC container: 24 – 26 MT (bulk packing recommended above 24 MT)

• Lead time: 15 days from PO confirmation for standard semidull grade (0.64 IV). Custom IV or bright grades require 21 days.

• Incoterms supported: FOB, CIF, CFR, EXW (seller’s warehouse)

• Key documentation: COA, MSDS, Bill of lading, packing list, commercial invoice, origin certificate (Form E / GSP applicable)