Our PEPP Polyester Staple Fiber 1D*4mm is a high-performance industrial-grade staple fiber designed for manufacturers requiring precision, stability, and reliability in production. Engineered with ultra-fine 1D fineness and 4mm short-cut length, this fiber delivers exceptional processability, uniformity, and mechanical performance for professional textile and industrial applications.

With strictly controlled diameter and length, every filament maintains consistent specifications to ensure stable forming, uniform distribution, and reliable output in non-woven production, composite reinforcement, and functional textile manufacturing. The fiber's high tensile strength and structural stability enhance the durability, tear resistance, and lifespan of finished products.

• Ultra-Fine 1D*4mm Precise Specification
  Uniform fineness and length ensure stable processing, smooth forming, and excellent uniformity in non-woven, composite, and industrial textile applications.
• High Strength & Good Tensile Resistance
  Provides outstanding durability, anti-deformation performance, and long service life for industrial fabrics, filters, padding, and structural textiles.
• Smooth Surface & Low Lint
  Clean surface, minimal impurities, low lint generation, stable processing, no clogging, and high efficiency for automated production lines.
• Excellent Heat & Chemical Stability
  Good heat resistance, dimensional stability, and chemical tolerance, suitable for high-temperature processing and demanding industrial environments.

• Non‑woven Fabric Production: Ideal for manufacturing high‑quality non‑woven fabrics, providing uniform structure, good strength, and stable performance for industrial and civil non‑woven products.
• Filter Media & Filtration Materials: Suitable for precision filter cloth, filter paper, liquid and air filtration materials, offering excellent permeability, uniform distribution, and reliable filtration efficiency.
• Composite Reinforcement Materials: Used as reinforcement component in composite boards, structural composites, and functional composite materials to enhance strength, toughness, and dimensional stability.
• Industrial Textiles & Technical Textiles: Widely applied in industrial linings, functional fabrics, insulation materials, sound‑absorbing materials, and other high‑performance technical textiles.
• Coating & Dipping Materials: Perfect for coating products, impregnated fabrics, and functional surface treatment materials, with good adhesion and process compatibility.