1.4D × 38mm Semi-Dull Round Recycled Polyester Staple Fiber

Product Description

1.4D × 38mm Semi-Dull Round Recycled Polyester Staple Fiber is a premium-grade, eco-friendly synthetic fiber manufactured from post-consumer PET bottles and industrial polyester waste. It meets global recycled content standards such as GRS (Global Recycled Standard).

With a fineness of 1.4 denier and a cut length of 38mm, this fiber is specifically engineered for cotton-spinning systems, offering excellent spinnability, uniform yarn evenness, and consistent processing performance.

The semi-dull luster provides a natural, non-glaring matte finish suitable for a wide range of textile applications. The round cross-section ensures smooth fiber surface, good cohesion during spinning, and balanced mechanical properties.

 Physical Property Parameters

• Tenacity: 3.5 - 6.5 cN/dtex

• Elongation at Break: 15% - 45% (Adjustable)

• Crimps: 8 - 15 per inch (Customizable)

• Crimp Level: 8% - 15%

• Oil Content: 0.15% - 0.25% (Adjustable based on spinning process)

• Moisture Regain: ≤ 0.4% (Standard atmospheric conditions)

• Melting Point: 258 - 263℃

• Dry Heat Shrinkage at 180°C: 0.5% - 2.5% (Adjustable based on application needs)

Applications

This fiber grade is widely used in the following areas:

1. Spun Yarn Production (Cotton System)

• Blended yarns: Mixed with cotton, viscose, linen, or bamboo for knit & woven fabrics

• 100% recycled polyester yarn: for eco-friendly T-shirts, singlets, and sportswear

• Home textiles: Bed sheets, pillowcases, towels, and curtains

2. Knitted Fabrics

• Jersey, pique, fleece, and thermal wear

• socks, leggings, and sweat suits

3. Woven Fabrics

• Shirting, uniform fabrics, denim, and canvas

• Lining fabrics and industrial cloth

4. Non-woven Applications (Light to Medium Weight)

• Spunlace non-wovens: wet wipes, disposable medical fabrics

• Needle punch: automotive interiors, filtration mats, insulation layers

5. Other Uses

• Blending with natural fibers for improved durability and wrinkle resistance

• Stuffing and filling (when used with hollow fiber variants)

Spinning Applications

• Cotton-type Fiber: 1.2D-1.5D×38mm, for ring spinning / rotor spinning

• Mid-length Fiber: 2.0D-3.0D×51mm-64mm, for woolen spinning systems

• Wool-type Fiber: 3.0D-6.0D×76mm-102mm, for worsted spinning

• Filling Fiber: 6D-15D×64mm-102mm, 3D crimp

 Nonwoven Applications

• Spunlace Nonwovens: 1.2D-2.5D×38mm-51mm, for medical/hygiene materials

• Thermal Bond/Air-through Nonwovens: Composite with low-melt fiber, for topsheet of sanitary napkins/diapers

• Needle-punched Nonwovens: 6D-15D, for geotextiles/filtration media/carpet backing

• Stitch-bonded Nonwovens: 3D-8D, for furniture upholstery/automotive interiors

Filling Materials

• Home Textile Filling: Silicone-treated, 7D-15D hollow conjugated, for pillows/quilts

• Toy Stuffing: Super-soft treatment, compliant with EN71 safety standard

• Apparel Padding: Micro-denier hollow fiber, for thermal insulation materials

Sustainable Product Series

Recycled Polyester Staple Fiber (rPSF)

• Raw Material Source: 100% Post-consumer PET bottle flakes / Post-industrial waste

• Certification System: GRS (Global Recycled Standard) certified

• Traceability System: Full traceability from recycling to finished product

• Environmental Advantage: Reduces carbon footprint by over 45%

 Bio-based Polyester

• Raw Material Source: 30% plant-based (non-food crops)

• Certification: Bio-based content certification available

Production Standards

• Uniformity Control: CV value <3% (for denier, length)

• Cleanliness: Defect content <2mg/100g

• Packaging Standard: 500kg/bale, ±0.5% weight tolerance

• Traceability: Production data recorded for each batch

 Testing Capabilities

• USTER TESTER 6: Evenness testing

• Laser Fineness Analyzer: Single fiber fineness distribution analysis

• Thermal Shrinkage Tester: Multi-zone shrinkage performance

• FTIR Spectrometer: Raw material composition verification

 FAQ

1. Why choose Polyester FDY Yarn?

-Good elasticity and grade A quality

- Full dull finish eliminates unwanted shine for authentic fur appearance

-Better anti static electricity

2. What's your payment term?  

30% T/T as deposit 70% T/T before shipment or LC at sight, others are negotiable.

3. Can we get samples?  

Free samples always could be sent to you for your evaluation.

4. What's your MOQ?  

8 Ton