English
中文简体
Specification
| Parameter | Typical Range | Notes |
| Polymer Base | PET, PA6, PA66, PP, PBT | rPET (GRS-certified) available |
| Denier Range | 20D – 2000D | Ultra-fine ≤ 20D for technical use |
| Filament Count | 12f – 576f | Higher counts for microfiber fabrics |
| Tenacity | 3.8 – 7.5 g/d | High-tenacity grade ≥ 6.5 g/d available |
| Elongation at Break | 15 % – 30 % | Lower elongation = higher dimensional stability |
| Boiling Water Shrinkage | ≤ 3 % | Ultra-low shrink ≤ 1 % for technical fabrics |
| Birefringence (Δn) | 0.170 – 0.195 | Indicator of full orientation achieved |
| Oil Content (Finish) | 0.3 % – 0.6 % | Adjusted for knitting / weaving / nonwoven use |
| Cross-Section | Round, Trilobal, Flat, Hollow, Octalobal | Shaped filaments on request |
| Luster | Bright / Semi-dull / Full-dull | TiO₂ content adjusted per grade |
| Winding Speed | Up to 6,000 m/min | Precision winding for warp beam direct use |
| Cone / Cheese Weight | 2 kg / 5 kg / 10 kg / 15 kg | Warp beams available for large orders |
| Color | Raw white, optical white, dope-dyed | 500 + dope-dyed shades in stock |
Application
FOY's flat, smooth filament structure and dimensional stability make it the preferred choice wherever precise fabric geometry, clean surface aesthetics, or high strength-to-weight ratio are required:
- Warp Beam Weaving — FOY is the standard warp yarn for high-speed air-jet and water-jet looms producing satin, taffeta, chiffon, georgette, and crepe de chine fabrics, where low elongation and consistent tension are critical.
- Embroidery Thread — The smooth, flat filament surface gives embroidery thread its characteristic sheen and prevents thread breakage during high-speed multi-needle embroidery.
- Warp Knitting (Tricot & Raschel) — Fine-denier FOY (20D–75D) is used as the guide bar yarn in tricot lingerie and raschel lace fabrics.
- Technical & Industrial Fabrics — High-tenacity FOY is used in airbag fabric, conveyor belting, industrial filtration, and coated technical textiles where dimensional stability under load is non-negotiable.
- Nonwoven Spunbond & Spunlace — FOY-equivalent fibers form the backbone of spunbond nonwovens used in hygiene, medical, and filtration products.
- Tire Cord & Composites — Industrial FOY at high denier (1000D +) is used as reinforcement in rubber composites and tarpaulins.
- Optical & Decorative Fabrics — Bright-luster trilobal FOY produces the light-play effect in organza, lamé, and decorative ribbon fabrics.
Advantage
- Ready-to-Use, No Secondary Processing — FOY exits the factory fully drawn and oriented. Unlike POY, it requires no draw-texturing step, reducing lead time and simplifying supply chain for weavers and warp knitters.
- Superior Dimensional Stability — With boiling water shrinkage ≤ 3 % and birefringence ≥ 0.170, FOY fabrics hold their shape through dyeing, finishing, and repeated laundering.
- High Tenacity-to-Weight Ratio — FOY achieves 3.8 – 7.5 g/d tenacity, enabling lightweight technical fabrics with excellent load-bearing capacity.
- Smooth, Clean Surface for Premium Aesthetics — The flat filament structure produces fabrics with a silky sheen and sharp color reproduction — critical for luxury apparel and decorative textiles.
- Direct Warp Beam Winding — GC FIBER offers precision warp beam winding services for high-volume weaving customers, eliminating the rewinding step and reducing yarn waste.
- Broad Functional Customization — FOY can be produced with UV stabilization, flame retardancy, antimicrobial finish, or dope-dyed coloration within the same spinning process, reducing downstream chemical treatment costs.
- Sustainable Options — GRS-certified rPET FOY is available with identical physical performance to virgin PET, supporting brands' recycled content claims without quality compromise.
