Hollow Polyester Staple Fiber

Non-Siliconized Polyester Staple Fiber

1. Definition & Production

Non-Siliconized Polyester Staple Fiber is a mainstream polyester staple fiber that omits the silicone softening finishing procedure after fiber forming. Raw materials include new PET chips and recycled bottle flakes certified by GRS. The manufacturing process includes high-temperature melting, filament extrusion, stretching, crimp setting and fixed-length cutting. Unlike siliconized PSF covered with silicone lubricant, its surface keeps the original polyester texture, which is its most distinctive feature.

2. Core Characteristics

Strong fiber cohesion: The non-smooth surface enables tight bonding between fibers, greatly reducing fiber slippage during carding and spinning, lowering yarn breakage rate and improving yarn evenness;

Good processing adaptability: Less prone to silicone residue accumulation on textile machinery equipment, effectively avoiding roller contamination, equipment sticking and later printing & dyeing defects;

Stable physical performance: Outstanding tensile strength, anti-deformation property and long-lasting crimp structure, good acid and alkali resistance, mildew resistance and dimensional stability;

Lower comprehensive cost: No extra silicone oil consumption in production, more economical than siliconized fiber for large industrial procurement;

Controllable static electricity: Appropriate oiling agent ensures normal spinning operation without excessive static trouble.

3. Conventional Custom Specifications

Fineness: 0.9D, 1.2D, 1.4D, 2D, 3D, 6D, 12D, 15D

Length: 32mm, 38mm, 51mm, 64mm, 76mm

Grade: Virgin fiber, GRS recycled fiber, bright / semi-dull / full-dull, white, black and dyed colored fiber

4. Main Application Fields

Spinning industry: Polyester-cotton blended yarn, rotor spinning coarse yarn, workwear fabric, canvas and blanket raw materials;

Non-woven fabrics: Needle-punched geotextiles, industrial filter felts, automotive interior linings, carpet substrates and disposable industrial fabrics;

Engineering textiles: Road reinforcement materials, environmental filter materials, waterproof lining base cloth;

Daily textiles: Thick bedding fabrics, floor mats and other products requiring tight structure.

5. Product Advantages Summary

Non-siliconized PSF is the preferred raw material for spinning and industrial non-wovens. It solves the common problems of siliconized fiber such as difficult dyeing and equipment contamination. Recycled non-siliconized fiber also conforms to global environmental protection and carbon neutrality requirements, which is favored by overseas textile manufacturers.

Huacai Group is well-known as one of the leading hollow polyester staple fiber manufacturers and suppliers in China, featured by quality products and good service. Please feel free to buy bulk hollow polyester staple fiber at competitive price from our factory.