Toy Stuffing & Hollow Fiber Filling
Superior Loft & Warmth: The hollow core traps air, providing better insulation and recovery than solid fibers.
Easy Processing: Designed for smooth carding and excellent bonding with low-melt fibers.
Wide Application: Ideal for fiberfill, filtration, padding, wadding, and insulation
PRODUCT DETAIL
In the high-performance textile industry, Hollow Fiber Filling has emerged as the premier solution for applications requiring superior loft, lightweight insulation, and long-term resilience. Unlike traditional solid fibers, hollow fibers are engineered with a continuous air-trapping core. This “two-phase” structure—polyester shell and air center—provides mechanical properties that solid fibers simply cannot match.
Whether for premium toy stuffing, luxury bedding, or technical industrial insulation, understanding the structural advantages of Hollow Polyester Staple Fiber (PSF) is the key to creating superior consumer products.
The Science of the “Hollow” Structure
At the microscopic level, hollow fiber is designed like a tube. This geometry is not merely an aesthetic choice; it is a calculated engineering feat achieved through specialized extrusion nozzles.
Air Insulation: The hollow center traps a pocket of stagnant air. Since air is a poor conductor of heat, this creates a natural thermal barrier, making the fiber exceptionally warm for its weight.
Volume without Mass: By removing the center of the fiber, manufacturers can achieve significantly higher “bulk” or “loft” using less raw material. This results in a product that feels “full” and “fluffy” without being heavy or dense.
Elastic Recovery: The tubular shape provides greater structural integrity. When compressed, the fiber resists collapsing better than a flat, solid filament, allowing it to “spring back” to its original shape.
Hollow Conjugated Siliconized (HCS) vs. Dry Fiber
When sourcing hollow fiber, it is important to distinguish between the two primary finishes used in industrial filling:
Hollow Conjugated Siliconized (HCS)
This is the gold standard for Toy Stuffing and Pillow Filling.
The Conjugate Factor: The fiber is given a 3D spiral crimp during production. This acts like a microscopic spring, providing the “bounce” customers expect.
The Siliconized Finish: A slick silicone coating is applied to the surface. This reduces friction between fibers, preventing clumping and “matting” over time, ensuring a silky, smooth hand-feel.
Hollow Dry Fiber
Dry hollow fiber lacks the silicone coating, resulting in a “harsher” or higher-friction feel.
Best Use: This is ideal for Industrial Filtration and Wadding, where the fibers need to “grip” one another to maintain a stable, non-shifting structure within a web or pad.
Primary Applications for Hollow Fiber Filling
Premium Toy Stuffing
Hollow fiber is the preferred Toy Stuffing because it maintains the “fullness” of plush toys even after multiple machine-washing cycles. The high air content makes the toys feel soft and “squishy” rather than hard and heavy.
Bedding & Home Textiles
For pillows, quilts, and comforters, hollow fiber provides a breathable, hypoallergenic alternative to natural down. It offers the same warmth-to-weight ratio while remaining safe for users with respiratory sensitivities.
Industrial Nonwovens & Filtration
The hollow structure provides a massive surface area, which is highly efficient for:
Air and Liquid Filtration: Trapping particles while allowing high flow rates.
Thermobonding Wadding: Creating thick, insulating layers for winter jackets and sleeping bags.
Acoustic Insulation: Absorbing sound waves in automotive and construction environments.
Sustainable Innovation: Recycled Hollow Fiber
As global brands shift toward a circular economy, 100% Recycled Hollow Fiber has become an industry essential. By converting post-consumer PET flakes into high-performance hollow filaments, manufacturers can:
Reduce Carbon Footprint: Lowering the reliance on virgin petroleum resources.
Meet ESG Goals: Providing GRS-certified (Global Recycled Standard) materials for eco-conscious product lines.
Maintain Performance: Modern recycling technology ensures that recycled hollow fiber matches the whiteness and resilience of virgin fiber.
Conclusion
Hollow Fiber Filling represents the pinnacle of synthetic filling technology. By utilizing the physics of air entrapment and 3D conjugate crimping, manufacturers can produce textiles that are lighter, warmer, and more resilient than ever before. Whether you are engineering the next generation of hypoallergenic bedding or durable industrial filters, hollow fiber is the versatile choice for performance-driven design.
Technical Parameter
To ensure consistency in high-speed manufacturing, hollow fibers are produced within strict denier and cut-length parameters.
| Parameter | Specification Details | Industrial Application |
| Denier Range | 3D, 7D, 15D, 20D | 7D for soft pillows; 15D for firm cushions/toys. |
| Type | Hollow Conjugate / Mechanical Crimp | Defines the loft and recovery “spring.” |
| Grade | 100% Recycled or Virgin | Sustainability and purity requirements. |
| Cut Lengths | 32mm, 51mm, 64mm, 76mm | Tailored for carding and filling machines. |
| Special Finishes | FR (Flame Retardant), Antibacterial | Enhanced safety for home and medical use. |
The Manufacturing Excellence of Hollow PSF
The transformation of polyester chips into high-loft filling is a rigorous multi-stage process:
Extrusion: Raw polymer is melted and forced through a hollow-core spinneret.
Solidification: The molten filaments are cooled in a controlled spinning tank, “locking in” the hollow center.
Drawing & Stretching: The fibers are stretched across rollers to align the molecular chains, increasing the tensile strength and durability of the filament.
Crimping: For hollow fibers, a mechanical or thermal “conjugate” crimp is applied to give the fiber its 3D helical shape.
Siliconization: (Optional) The slick finish is applied to ensure the fiber is antimicrobial and anti-bunching.
Baling: The fiber is dried, cut to length, and compressed into dense bales for efficient global logistics.
FAQ
1. What do you offer?
We supply a comprehensive range of fibers, including recycled hollow conjugated (both siliconized and non-siliconized) polyester staple fiber, hollow fiber, microfiber, virgin polyester staple fiber, and low-melt fiber.
2. What is it used for?
Our fibers are versatile and widely utilized across both the filling and non-woven industries, providing essential loft, durability, and texture for various consumer and industrial applications.
3. Are you a factory or a trading company?
We are primarily a manufacturer specializing in polyester staple fiber with years of industry expertise. To better serve our clients, we also operate a dedicated trading division that allows us to act as a one-stop solution provider.
In addition to our own fiber production, we source high-quality textile components (such as yarn and low-melt fibers) and finished goods (including foam, pillows, cushions, toys, and down/feather products) to ensure our customers have access to a comprehensive supply chain.
4. Where is your factory location?
To maintain a robust and flexible global supply chain, our manufacturing facilities are strategically located throughout Asia, specifically in Vietnam, China, Malaysia, Thailand, and Indonesia. If you would like to visit one of our sites, please contact your sales representative, and we will be happy to arrange transportation for you.
5. Can you accept free sample?
Yes, we provide free hand samples for quantities under 1 kilogram. Once a price is confirmed, we can prepare and dispatch your sample within 2–3 business days. Please note that while the sample is free, the freight costs are the responsibility of the client.
6. Can you provide ODM service?
Absolutely. We specialize in ODM (Original Design Manufacturing). This means we can customize the material composition, dimensions, quantity, packaging, and branding to meet your specific requirements. Your logo and unique specifications will be integrated into the final product.
7. How about your quality? What’s the minimum order Quantity (MOQ)?
We invite you to place a trial order to experience our quality firsthand. Our standard MOQ is 23,000 kilograms per order.
Regarding pricing, we maintain a no-bargain policy. We believe in transparency and efficiency, so we provide our most competitive offer upfront to save you time and ensure a straightforward procurement process.
8. Can I mix different items in one order?
Yes, for your convenience, we allow for a maximum of two different items to be mixed within a single container.
9. How can you guarantee the product quality?
Quality is the cornerstone of our business. We employ an experienced QC team that monitors every stage of production, from raw material inspection to the final manufacturing process. We utilize a range of advanced testing instruments to ensure our fibers meet strict industry standards.
Our business philosophy is simple: We aim to serve one customer 1,000 times, rather than 1,000 customers once. We prioritize long-term partnerships built on consistent excellence.
10. What’s the payment terms?
L/C at sight, 30% TT in advance are mostly accepted; other terms shall be negotiable by both sides
For more information, please feel free to contact :
Tony Tan
Mobile number: +84 90 466 5251 (Whatsapp/Wechat/Viber/Signal)
