GRS Available
Polyester Staple Fiber
Polyester Staple Fiber (PSF) is a short-cut polyester fiber produced by melt spinning, drawing, crimping, and cutting continuous polyester filaments into discrete lengths. Unlike filament yarns (DTY/FDY/POY), PSF consists of individual short fibers used directly in spinning, filling, and nonwoven applications. Yaakan supplies a comprehensive range of PSF grades — from fine spinning fibers (1.4D) to heavy industrial grades (15D) — in both virgin and GRS-certified recycled rPET variants. Our PSF is sourced directly from China's leading producers and shipped FOB Xiamen to buyers across South Asia, Southeast Asia, the Middle East, Africa, and beyond.
Full Specifications
| Parameter | Standard Range | Common Specifications | Notes |
|---|---|---|---|
| Product Name | Polyester Staple Fiber | PSF / Short Fiber | 涤纶短纤维 |
| Raw Material | 100% Polyester (PET) | Virgin or rPET (Recycled) | GRS cert for recycled grade |
| Denier (D) | 1.4D – 15D | 1.4 / 1.5 / 2 / 3 / 6 / 7 / 15 | Custom deniers on request |
| Cut Length (mm) | 32mm – 64mm | 32 / 38 / 44 / 51 / 64mm | Matched to spinning system |
| Fiber Structure | Solid / Hollow / Conjugated | Solid most common for spinning; Hollow for filling | Hollow = lighter, more loft |
| Crimp Type | Mechanical crimp (zigzag) | Conjugated spiral crimp (for filling) | Spiral crimp = better resilience |
| Finish | Regular / Siliconized | Siliconized for filling applications | Silicone reduces friction |
| Luster | Semi-Dull / Bright / Full-Dull | Semi-Dull most common | Full-Dull for certain nonwovens |
| Tenacity | ≥ 5.0 cN/dtex (spinning grade) | 5.0 – 6.5 cN/dtex | Higher for spinning grade |
| Elongation at Break | 25% – 45% | 30% – 40% | Lower for nonwoven grade |
| Crimp Number | 9 – 14 per 25mm | 11 – 13 per 25mm | Higher = more bulk |
| Crimp Stability | ≥ 80% | 82% – 88% | Critical for carding performance |
| Oil Content | 0.10% – 0.20% | 0.12% – 0.18% | Controlled for carding |
| Color | White | Optical White / Regular White | Colored PSF on request |
| HS Code | 5503.20 | 5503.20.00 | Polyester staple fiber, not carded |
| Packaging | Bale | 200–250 kg per bale | Compressed, strapped bales |
Denier & Length Selection Guide
The right denier and cut length depends entirely on your end application. Use this guide to select the correct PSF specification.
| Application | Recommended Denier | Cut Length | Fiber Type | Notes |
|---|---|---|---|---|
| Fine ring spinning (Ne 40+) | 1.4D – 1.5D | 38mm | Solid, Semi-Dull | Blended with cotton for fine yarn |
| Medium ring spinning (Ne 20–40) | 1.5D – 2D | 38mm | Solid, Semi-Dull | Standard PSF/cotton blend |
| Coarse ring spinning (Ne 10–20) | 2D – 3D | 38–51mm | Solid, Semi-Dull | PC yarn, workwear fabrics |
| Semi-worsted spinning | 3D – 6D | 51–64mm | Solid, Semi-Dull | Blankets, heavy apparel |
| Woolen system spinning | 6D – 15D | 64–76mm | Solid or Hollow | Carpet yarn, heavy knit |
| Pillow & cushion filling | 6D – 15D | Loose / 51–64mm | Hollow Conjugated Siliconized | Loft & resilience critical |
| Quilt & duvet filling | 3D – 7D | Loose / 51mm | Hollow Conjugated Siliconized | Warmth-to-weight ratio |
| Stuffed toy filling | 7D – 15D | Loose | Hollow Siliconized | Soft hand, non-toxic finish |
| Thermal bonded nonwoven | 3D – 6D | 51–64mm | Regular + Low-melt binder fiber | Low-melt fiber 10–20% blend |
| Needle-punched nonwoven | 6D – 15D | 51–76mm | Solid, Coarse | Geotextile, felt, carpet backing |
| Spunlace (hydroentangled) nonwoven | 1.5D – 3D | 38–51mm | Solid, fine, RFL | Wipes, hygiene products |
Packaging & Delivery
Standard Packaging
Shipping & Incoterms
Quality & Certification
All partner mills hold ISO 9001 certification with documented process controls across every production step from polymer preparation to bale packaging.
GRS-certified recycled PSF available. Transaction Certificates (TC) and full chain-of-custody documentation provided with every GRS shipment to support brand recycled content claims.
Particularly important for filling-grade PSF used in bedding, pillows, and stuffed toys. Required by major retail brands. Certificates provided on request.
SGS inspection available covering: denier, tenacity, elongation, crimp number, crimp stability, oil content, and moisture. Mill quality certificates provided with every shipment.
Standard Documents per Shipment
Commercial Invoice · Packing List · Bill of Lading · Certificate of Origin (Form E) · Mill Quality Certificate (denier, crimp, tenacity, oil content). Optional: SGS Report · OEKO-TEX Certificate · GRS Transaction Certificate · Fumigation Certificate.
PSF Variants
PSF is not a single product — different structural types serve fundamentally different applications. Choose the right variant for your end use.
The most widely used PSF type. Solid cross-section with mechanical crimp. Designed for spinning into yarn on ring spinning, open-end, or rotor spinning systems. The fine deniers (1.4D–3D) blend with cotton or viscose to produce blended spun yarns for apparel and home textiles.
The premium filling fiber. Hollow cross-section (one or more air channels through the fiber) provides exceptional loft and resilience. Conjugated bi-component crimp gives it a permanent three-dimensional curl that resists flattening. Siliconized finish ensures fibers slide smoothly and fill evenly without clumping.
A bicomponent fiber with a standard polyester core and a lower-melting-point polyester (or copolyester) sheath. When heat is applied, the sheath melts and bonds adjacent fibers together — used as a binder fiber (typically 10–20% blend) in thermally bonded nonwoven production for automotive, furniture, and hygiene applications.
Produced from post-consumer recycled PET (rPET), primarily from plastic bottles. GRS-certified recycled PSF meets the same physical performance standards as virgin PSF in most spinning and filling applications, while supporting brands' sustainability commitments. Each shipment comes with full GRS Transaction Certificates and chain-of-custody documentation.
Virgin PSF vs Recycled PSF
Both grades serve most applications equally well. The choice depends on your sustainability requirements, budget, and end customer expectations.
Denier & Application Selection Table
At a glance — the right PSF denier for your production process.
| Denier | Cut Length | Type | Primary Application | End Product |
|---|---|---|---|---|
| 1.4D | 38mm | Solid SD | Fine ring spinning (PSF/cotton) | Fine apparel yarn (Ne 40–60) |
| 1.5D | 38mm | Solid SD | Ring spinning — most common spinning grade | Blended yarn for shirting, knitwear |
| 2D | 38–44mm | Solid SD | Medium ring spinning, open-end spinning | Medium-count blended yarn |
| 3D | 51mm | Solid SD | Coarse spinning, semi-worsted | Workwear yarn, heavy knitwear |
| 3D | 51mm | Hollow Conjugated Siliconized | Lightweight quilt filling | Summer quilts, light pillows |
| 6D | 51–64mm | Hollow Conjugated Siliconized | Standard pillow & cushion filling | Pillows, sofa cushions, soft toys |
| 7D | 64mm | Hollow Conjugated Siliconized | Premium filling — high loft | Premium pillows, stuffed animals |
| 15D | 64mm | Hollow Solid / Coarse | Coarse filling, industrial nonwoven | Heavy cushions, carpet backing |
| 3D–6D | 51–64mm | Low-Melt Bicomponent | Thermal bonded nonwoven binder (10–20% blend) | Automotive felt, insulation |
Applications of Polyester Staple Fiber
PSF's versatility spans the entire textile and industrial fiber chain — from fine apparel yarn to heavy geotextile production.
The PSF Production Process
PSF production transforms PET polymer into short, crimped fibers through a multi-stage process — fundamentally different from filament yarn production.
Your Reliable PSF Supplier from China
"We have sourced hollow siliconized PSF from Yaakan for 7 years for our pillow production. Consistent crimp, consistent fill weight — we have never had to reject a shipment."
— Bedding Manufacturer, Karachi, PakistanPolyester Staple Fiber FAQ
Answers to the most common questions buyers ask about PSF.
Need Polyester Staple Fiber?
Tell us your denier, cut length, fiber type, grade (virgin or recycled), and quantity. We'll respond with a competitive FOB Xiamen price within 24 hours. Samples available.