3D White Bamboo Charcoal PET Hollow Fiber,Hollow Warm Functional Fiber Fluffy Antibacterial Staple for Underwear & Bedding

Specifications can be customized to meet your production requirements.

The 3D * 64 mm white bamboo charcoal hollow staple fiber addresses key limitations of standard functional fibers and traditional bamboo charcoal products. Conventional grey bamboo charcoal fibers have a dull dark grey appearance that restricts use in light-colored and fashion-focused products, and surface-coated functional fibers often lose their benefits quickly after washing as the coating wears off. Standard solid functional fibers also lack sufficient loft and thermal efficiency for filling applications.

This product solves these pain points through material innovation and structural design. Its nano white bamboo charcoal formula retains all the natural functional benefits of bamboo charcoal — antibacterial activity, odor reduction, negative ion release and far-infrared warmth — in a clean off-white fiber form. The active particles are embedded deep into the polymer matrix during spinning, not just coated on top, so functionality stays consistent through dozens of washes and years of use.

The hollow core structure adds another layer of value by creating lightweight, air-trapping warmth. This makes the fiber equally effective as a filling material and as a textile fiber, delivering both functional benefits and premium comfort. The 3D fine denier ensures a soft, non-irritating hand feel that works well against skin, while the 64 mm staple length fits seamlessly into existing production lines with minimal process adjustment.

Unlike grey bamboo charcoal variants that only work in dark products, this white version accepts dyes evenly across a full range of shades, from soft pastels to deep saturated colors. This gives brands and designers far more creative freedom to build health-focused products that also look premium and on-trend.

Manufactured under ISO quality management with full traceability, every batch is tested for denier tolerance, length uniformity, antibacterial efficacy and whiteness to ensure reliable, consistent performance. We supply in bulk with stable stock, and support customization of denier, length, charcoal content and additional functional modifications. Samples are available for efficacy testing, hand feel evaluation and dyeing trials before placing bulk orders.

• Nano White Bamboo Charcoal Infusion, Multi-Functional Wellness Benefits. Nano-sized white bamboo charcoal particles are uniformly embedded into the fiber core (not surface-coated), delivering long-lasting natural benefits: broad-spectrum antibacterial activity to suppress odor-causing bacteria, continuous negative ion release to refresh ambient air, and a far-infrared thermal effect to lock in body warmth and promote micro-circulation. It effectively reduces unpleasant odors from sweat and moisture, maintaining long-lasting freshness in close-contact products.
• Uniform Hollow Core Structure, Lightweight Fluffy Warmth. The precision-engineered hollow cavity traps static air effectively, creating natural thermal insulation with ultra-light weight. It delivers voluminous loft and excellent compression resilience, resisting flattening and clumping far better than regular solid fibers, maintaining fullness and comfort over long-term daily use.
• 3D Fine Denier + 64 mm Standard Staple, Soft Skin-Friendly Feel. The 3D fine denier creates a soft, delicate hand feel suitable for close skin contact, while the 64 mm standard staple length is optimized for all mainstream textile and filling processing lines, including carding, ring spinning, blow filling and needle punching. It processes smoothly with minimal fiber breakage and fly waste, supporting efficient mass production.
• Washable Long-Lasting Functionality, No Surface Shedding. Bamboo charcoal active components are integrated into the polymer matrix instead of being coated on the surface. Functional benefits remain stable even after repeated washing and long-term use, with no particle shedding or performance degradation, ensuring durable value for end products.
• Clean Off-White Base, Dyeable for Versatile Design. Unlike conventional grey bamboo charcoal fibers that limit color options, this white bamboo charcoal fiber features a natural clean off-white shade with no dull grey cast. It accepts dyes evenly for both light pastel and deep colors, offering maximum design flexibility for apparel, bedding and toy products.
• Virgin PET Base, Safe & Consistent Batch Quality. Made from 100% virgin food-grade PET polymer with strict production control, it is free of harmful additives, low-irritation and skin-safe. Strict in-line quality control ensures consistent denier, length, functionality and whiteness across every batch, supporting stable high-volume manufacturing.