Virgin Hollow Conjugated Siliconized Polyester Staple Fiber | Premium 3D PSF for Filling
Our Virgin Hollow Conjugated Siliconized Polyester Staple Fiber (3D PSF) is the ultimate premium choice for high-end filling applications. Engineered with advanced hollow conjugated technology and treated with a slick silicone coating, this fiber offers unparalleled loft, exceptional resilience, and a luxurious down-like feel. Whether you are manufacturing high-quality pillows, quilts, sofas, plush toys, or bedding stuffings, our 3D filling fiber ensures long-lasting bulkiness and excellent thermal retention.
Technical Specifications (Available Sizes)
We provide a comprehensive range of specifications to perfectly match your specific filling density and texture requirements.
| Linear Density (dtex) | Cut Length (mm) | Key Application |
|---|---|---|
| 3.33 dtex | 32mm / 51mm / 64mm | Fine fillings, high-end pillows, garments, and luxury plush toys. |
| 7.30 dtex | 32mm / 51mm / 64mm | Standard bedding, cushions, quilts, and winter jackets. |
| 8.88 dtex | 32mm / 51mm / 64mm | Medium-firm cushions, mattress toppings, and upholstery. |
| 16.67 dtex | 32mm / 51mm / 64mm | High-resilience sofa backs, pet beds, and heavy-duty outdoor cushions. |
Packaging Dimensions
135cm × 110cm × 78cm
Bale Net Weight
350 KG / Bale
Minimum Order (MOQ)
5000 KG
Key Features & Benefits
- 100% Virgin Grade Material: Manufactured from 100% virgin polyethylene terephthalate (PET) chips.
- Hollow Conjugated Structure: The continuous spiral crimp and hollow core trap more air, providing maximum loft with minimum weight.
- Superior Siliconized Finish: Reduces friction between fibers, resulting in an incredibly smooth, silky touch and excellent anti-clumping properties.
- Excellent Recovery Rate: Highly resilient structure allows the filling to bounce back to its original shape even after prolonged compression.
Primary Applications
🛏️ Bedding Industry
Premium duvet filling, pillow stuffing, mattress toppers, mattress pads.
🛋️ Home Textiles
Sofa cushions, backrests, bean bags, decorative pillows.
🧸 Toy Manufacturing
Stuffed animals, plush toys, reborn doll filling.
🪑 Furniture Upholstery
Residential and commercial seating, outdoor cushions.
🌐 Non-Woven Applications
High-loft wadding, filter media, acoustic insulation.
Customer Feedback & Reviews

The customer uses 7.3 dtex × 51 mm fiber for pillow core filling. It has excellent fluffiness recovery and a silky smooth touch.
— Suzhou home goods manufacturer.

The customer uses our produced 3.33 dtex siliconized hollow fiber, ensuring a soft hand feel and excellent warmth retention.
— Down jacket manufacturer in Wuhan.
Quality Certifications
Our manufacturing process adheres to strict international environmental and quality control standards. We ensure that our polyester staple fiber is safe for direct skin contact and eco-friendly.

OEKO-TEX® Standard 100

ISO 9001:2015 Quality System

Global Recycled Standard (GRS)
Factory & Production Tour
Equipped with state-of-the-art German-engineered extrusion lines, our facility boasts an annual capacity of over 50,000 tons. Every batch of Hollow Conjugated Siliconized Fiber undergoes rigorous laboratory testing for denier accuracy, cut length consistency, tensile strength, and oil-pick-up rate before packing.
Step-by-Step Delivery Process
Inquiry & Specification Confirmation
Send us your required dtex and cut length. We will provide a formal quotation and technical data sheets (TDS).
Sample Testing & Approval
We send free samples for your machinery testing. Once the quality matches your requirements, we finalize the order.
Strict Hydraulic Baling
Fibers are compressed using high-pressure hydraulic balers into standard 135cm × 110cm × 78cm sizes to maximize container loading capacity.
Loading & Shipping
Bales are securely packed and loaded into 20GP/40HQ containers. All export documentations (Bill of Lading, CO, Invoice, Packing List) are provided promptly for smooth customs clearance.






