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Polyester Staple Fiber
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High Sun Resistant Staple Fiber 1.4D*38MM, UV Shield Functional Polyester for Sportswear & Beach Fabric

High Sun Resistant Staple Fiber 1.4D*38MM, UV Shield Functional Polyester for Sportswear & Beach Fabric

Brand Name: Octopus fiber
Model Number: 1.4D*38MM
MOQ: Starting from 1 ton
Price: Free samples sent
Payment Terms: D/P,T/T,D/A
Supply Ability: Customized according to the quantity required by your company
Detail Information
Place of Origin:
China
Certification:
66321545
Name:
Moisture Wicking Quick Dry Polyester Staple Fiber
Specification:
1.4D*38MM
Native/Regenerative:
Native
Native/Regenerative:
Native
Color:
White
More Sizes:
Customizable
Siliconized/non-silicified:
Non-silicified
Packaging Details:
bundle
Product Description
High Sun Resistant Staple Fiber 1.4D*38MM, UV Shield Functional Polyester for Sportswear & Beach Fabric
Product Overview

Anti-UV Protective Polyester Staple Fiber 1.4D*38MM

Specifications can be customized

Product Description

Our 1.5D*38MM moisture wicking quick dry polyester staple fiber is a mature functional textile raw material developed with permanent hydrophilic graft modification technology, specially produced for high-comfort sweat-management apparel and daily breathable textiles. It solves the inherent hydrophobic weakness of ordinary polyester fiber and realizes stable long-term sweat absorption and fast drying effect.

Different from cheap surface-coated quick-dry fibers whose hydrophilic layer washes off easily, we integrate hydrophilic functional groups into the fiber molecular framework during melt spinning and post-treatment process. The moisture transport function is inherent and permanent, unaffected by frequent washing, bleach or softener use, which greatly improves the quality lifespan of end products and reduces customer return risks caused by faded quick-dry performance.

Designed with professional capillary cross-section structure, each single fiber forms micro water guide channels. Once sweat contacts fabric inner side, liquid moisture is rapidly guided outward and dispersed for fast evaporation, so skin never stays soaked and sticky after exercise or daily perspiration. The 1.5D medium fine denier creates soft cotton-like handfeel, suitable for direct contact with human skin without harsh friction irritation.

The standard 38mm fixed length ensures outstanding processing performance for spinning manufacturers. Uniform fiber length minimizes fly waste and thread breakage during high-speed spinning, lifting overall production efficiency. Flexible blending compatibility allows factories to mix this fiber with cotton, viscose or regular polyester to customize fabric softness, weight and production cost according to different product positioning.

With stable low shrinkage and high tensile strength, textiles made from our staple fiber resist deformation, pilling and abrasion under regular wear and repeated laundering. The raw white fiber features high dye uptake rate, can be dyed into rich bright colors with stable color fastness for colorful sportswear and fashion activewear lines.

We implement full batch quality inspection to guarantee consistent hydrophilic index, fineness and length for every shipment. Free lab samples are available for moisture absorption testing and spinning trial runs. Factory direct supply ensures stable stock capacity and competitive wholesale pricing for long-term global textile manufacturer partners, and we accept minor specification adjustments for large bulk orders.

Application Scope
  • Athletic & Fitness Apparel: Quick-dry jerseys, running t-shirts, training suits, basketball uniforms, cycling base layers
  • Daily Close-Fitting Wear: Breathable thermal underwear, casual tees, men and women sweat-wicking socks
  • Outdoor Functional Textiles: Hiking clothes, camping wear, fishing garments, travel quick-dry suits
  • Home Textiles: Moisture absorbent bed sheets, pillowcases, cooling blankets, breathable towel fabrics
  • Nonwoven Industry: Sweat-absorbing disposable wipes, functional sanitary nonwoven, sweat pad filling materials
  • Yarn Production: Pure moisture-wicking spun yarn, blended functional yarn for knitting and weaving factories
Product Images
Technical Specifications
Product Item Detailed Parameter
Product Name Hydrophilic Moisture Wicking Polyester Staple Fiber
Specifications 1.5D * 38MM
Modification Method Permanent hydrophilic chemical graft modification inside fiber structure
Base Material 100% Virgin Polyester PET
Color Raw bright white, clean impurity-free
Core Function Sweat absorption, rapid moisture transport, fast surface evaporation, keep skin dry
Water Absorption Rate High capillary effect, rapid upward water conduction
Breaking Tenacity ≥3.4 cN/dtex
Breaking Elongation 32%-42%
Boiling Water Shrinkage ≤2.2%
Spinning Adaptability Compatible with ring spinning, open-end spinning, carding and nonwoven lines
Package 25kg moisture-proof woven bag, pallet stacking for bulk shipment
Main Application Sportswear, fitness apparel, underwear, socks, bedding, functional nonwoven fabrics
Core Advantages
1. Permanent Hydrophilic Modification, Long-Lasting Moisture Wicking Performance

This fiber adopts internal graft hydrophilic modification instead of temporary surface coating treatment. The moisture-absorbing molecular chain is firmly combined with polyester substrate, so sweat wicking capability will not fade after dozens of repeated laundry cycles. Unlike disposable coated quick-dry fibers that lose function after several washes, our staple fiber maintains stable moisture management performance for the whole service life of finished textiles.

2. Powerful Capillary Sweat Conduction, Instant Dry Skin Feel

Special irregular cross-section structure forms countless tiny capillary channels inside each filament. When skin sweats, moisture is quickly pulled away from body surface, transported to fabric outer layer and evaporated rapidly. It effectively eliminates sticky, damp and cold feeling after sweating, delivering constant dry and fresh wearing experience even during high-intensity exercise or hot weather.

3. 1.5D Medium Fine Denier, Balanced Softness and Structural Strength

1.5D is a universal optimized denier for functional apparel. It delivers soft, smooth and non-irritating hand touch close to cotton, without the stiff rough feel of thick denier fiber. Meanwhile, it retains strong tensile strength and structural stability, resisting deformation during spinning, weaving and washing, perfectly balancing comfort and durability.

4. Standard 38MM Uniform Cut, Excellent Spinnability & High Production Yield

Precisely fixed 38mm cutting length with neat incision and stable length uniformity, few short fly fibers. The fiber bundle has good cohesion and fluidity, runs smoothly on all mainstream cotton and worsted spinning machines with low yarn breakage rate. It supports pure spinning into functional quick-dry yarn or blended mixing with cotton, viscose, regular polyester to adjust fabric texture and cost freely.

5. Low Shrinkage & Stable Dimensional Performance

Finished by high-temperature setting craft, the fiber owns low boiling water shrinkage rate. Fabrics woven from this fiber will not shrink severely or deform after washing, maintaining original shape and size of sportswear, underwear and socks for long-term use, reducing post-production shaping loss.

Frequently Asked Questions
Q1: Is the moisture wicking effect permanent or just surface coating?
A1: It adopts internal graft hydrophilic modification, the function is built into fiber structure instead of surface coating. Performance remains stable after repeated washing cycles.
Q2: What advantages does 1.5D denier bring compared to thinner or thicker specs?
A2: 1.5D balances soft skin-friendly touch and solid fiber strength, it is the most versatile spec for sportswear, underwear and socks, widely accepted by spinning factories globally.
Q3: Can this fiber blend with cotton or other staple fibers?
A3: Yes, it mixes evenly with cotton, viscose and regular polyester to adjust fabric breathability, softness and cost freely.
Q4: Will garments shrink heavily after washing?
A4: The fiber is heat-set with low boiling water shrinkage, finished fabrics maintain good dimensional stability after washing.
Q5: Is the fiber easy to dye into bright colors?
A5: Raw white fiber has excellent dye absorption capacity, supports full color spectrum dyeing with reliable color fastness.
Q6: Can I get free samples to test moisture absorption performance?
A6: Small test samples are provided free of charge for lab performance and spinning trials.
Q7: What kinds of finished products is this fiber most suitable for?
A7: Mainly for sportswear, fitness wear, quick-dry underwear, sweat socks, breathable bedding and functional sweat-absorbing nonwovens.
Q8: Can you customize special denier or length for big orders?
A8: Custom denier, length and hydrophilic strength can be arranged for large volume bulk orders.
Company Profile

Guangzhou Octopus Fiber Co., Ltd. is a manufacturer, supplier and exporter located in Guangzhou, China. It is a source manufacturer focusing on the field of chemical fibers. The company's polyester fibers are widely used as the main raw material in modern applications, including: polyester fiber fillings, plush toys, cushions, blankets, sofas, sleeping pads, sheets, quilting, roll materials, cushioning materials, non-woven fabrics, geotextiles, automotive interiors, filter materials, etc., serving household and industrial purposes.

Fiber products are sold to Asia, America, Europe, the Middle East, Africa and around the world. The company attaches great importance to customer satisfaction, loyalty and credibility, ensuring that it provides the highest quality products at very competitive prices.