Soft Cloudy Hollow Fiber 3D*38MM，ollow Channel Thermal Insulation Fiber for Indoor Textile Filler，Pillow filling, mattress filling, etc.

Our 3D*38MM Cloudy Hollow Polyester Staple Fiber is a premium hollow filling staple fiber specially designed for comfortable textile padding. With standard specification of 3 denier fineness and 38mm staple length, each fiber features an independent hollow channel inside. The hollow structure traps static air to deliver superior thermal insulation and remarkable bulkiness.

Named Cloudy Fiber for its cloud-like fluffy touch, it maintains long-lasting resilience after repeated squeezing, effectively avoiding flattening and collapse compared with ordinary solid polyester fiber. Uniform mechanical crimp ensures great entanglement performance, easy opening and stable filling effect on automatic filling machines.

This versatile hollow filling fiber is widely adopted in home textiles, plush toys, pet supplies and thermal wadding manufacturing. Suitable for automated filling lines and nonwoven wadding production, ideal for manufacturers pursuing lightweight, fluffy and durable filling materials.

• Home Textile Filling - Pillows, sleeping quilts, throw cushions, mattress inner padding, bed rest bolster
• Plush Toy & Crafts - Stuffed animals, dolls, decorative craft filling
• Pet Supplies - Pet bed, kennel padding, pet mat inner filler
• Clothing Thermal Materials - Jacket wadding, vest insulation padding
• Nonwoven Wadding Production - Fluffy thermal bonded wadding for household textiles

Many ordinary solid filling fibers lack loft and become flat quickly. Low-quality hollow fiber often has inconsistent hollow rate, poor resilience and lots of broken filaments.

We strictly control hollow rate and crimp uniformity during spinning. Every batch of Cloudy Fiber passes loft and compression recovery test before delivery. Optimized siliconized oil formula lowers static electricity, ensures smooth running on automatic filling machines.

We provide test samples for machine trial filling. Long-term bulk orders are supported with stable delivery schedule and negotiable factory price.