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High-end high shrinkage and low melt cotton fiber,Thermal Forming Furniture & Decorative Fabric Staple

Product Summary
High-end High Shrinkage and Low Melt Cotton Fiber Thermal Forming Furniture & Decorative Fabric Staple Product Overview 2.5D×51MM High Shrinkage Low Melting Polyester Staple Fiber Specifications can be customized Our 2.5D×51MM high shrinkage low melting polyester staple fiber is a high-performance ...
Basic Properties
Place of Origin: China
Brand Name: Octopus fiber
Certification: 5555481452
Model Number: 2.5D*51MM
Trading Properties
Minimum Order Quantity: Starting from 1 ton
Price: Free samples sent
Payment Terms: D/P,D/A,T/T
Supply Ability: Customized according to the quantity required by your company
Product Description
High-end High Shrinkage and Low Melt Cotton Fiber
Thermal Forming Furniture & Decorative Fabric Staple
Product Overview
2.5D×51MM High Shrinkage Low Melting Polyester Staple Fiber
Specifications can be customized

Our 2.5D×51MM high shrinkage low melting polyester staple fiber is a high-performance bicomponent functional fiber specially developed for synthetic leather, shoe material, filter and textile shaping industries. Adopting advanced concentric sheath-core composite spinning process, it perfectly combines low-temperature thermal bonding and controllable thermal shrinkage functions, replacing the traditional process of "adhesive bonding + separate sizing", and realizes one-step heating to complete bonding and shaping, which is an efficient and environment-friendly upgraded raw material for the textile and nonwoven industries.

Different from ordinary single-function low-melting fibers that only provide bonding effect, this fiber adds a high-shrinkage core layer on the basis of the low-melting sheath. When heated to the process temperature, the sheath layer melts first to form firm inter-fiber physical bonds; at the same time, the core layer undergoes controllable thermal shrinkage, driving the overall fabric to shrink evenly, forming a tighter fiber structure and a fuller, denser hand feel. This dual-function design simplifies the production process, reduces equipment input and labor costs, and significantly improves the quality grade of finished products.

The 2.5D fine denier and 51mm standard length are universal specifications widely used in the textile and nonwoven industries. The fiber has good spinnability and web forming performance, runs smoothly on various high-speed carding and needling production lines, and has low fly waste and high production efficiency. The shrinkage rate of each batch is strictly controlled, with uniform shrinkage in both warp and weft directions, and no local deformation or uneven hand feel after heat setting, ensuring stable quality of mass-produced products.

In terms of environmental protection and safety, the whole process adopts physical thermal bonding without adding any chemical adhesives, no VOC emission, no toxic and harmful residues, and meets the environmental protection and safety standards of European and American markets. It can be widely used in close-fitting clothing, indoor furniture and automotive interior products. It supports pure spinning processing and blending with a variety of fibers, and can flexibly develop products of different styles and grades according to market demand, with very high application flexibility.

We implement strict full-process quality control to ensure consistent performance of each batch of fibers. Factory direct supply with sufficient stock and competitive wholesale price. Free test samples are provided for melting point test, shrinkage test, bonding trial and production line trial production. Customized denier, length, melting point and shrinkage rate adjustment services are available for large-volume orders, supporting long-term stable cooperation for shoe material, synthetic leather, nonwoven and textile enterprises worldwide.

Wide Application Scenarios
  • Artificial Suede & Velour Fabric: Microfiber suede base fabric, imitation leather velvet, brushed fabric, sofa decorative fabric, clothing velvet fabric
  • Shoe Material & Leather: Shoe lining fabric, synthetic leather base cloth, shoe tongue filling, shoe hard cotton, insole base material
  • Automotive Interior: Car door trim fabric, ceiling felt, trunk lining, interior decorative felt, sound insulation cotton
  • Industrial Filtration: High-density filter felt, liquid filter material, dust removal filter bag base, precision filter material
  • Garment & Lining: Garment interlining, thermal shaping cotton, shirt collar lining, suit lining, non-iron fabric base
  • Home & Furniture: Furniture decorative fabric, mattress hard cotton, sound insulation felt, wall decoration fabric, thermal insulation cotton
Product Images
High shrinkage low melt polyester staple fiber sample 1 High shrinkage low melt polyester staple fiber sample 2 High shrinkage low melt polyester staple fiber sample 3 High shrinkage low melt polyester staple fiber sample 4
Core Selling Advantages
✅ 1. 2-in-1 Sheath-Core Design: Thermal Bonding + Controllable Shrinkage

This bicomponent fiber integrates two core functions into a single filament through precision composite spinning technology. The low-melting sheath softens and melts at 120-130°C to form firm physical bonds between fibers, while the high-shrinkage core produces controllable dimensional shrinkage under heat. One heating process completes both bonding and shaping simultaneously, eliminating separate sizing and bonding steps, significantly simplifying the production process and improving manufacturing efficiency.

✅ 2. Adhesive-Free Thermal Bonding, Eco-Friendly & High Bonding Strength

No chemical adhesives, glues or binders are required in the entire production process. The melted sheath forms homogeneous fiber-to-fiber bonding points with high peel strength and long-term durability, avoiding the problems of glue migration, odor emission and brittle bonding points common in traditional adhesive processes. It fully meets global environmental protection requirements, eliminates VOC emission hazards, and produces safer and more durable finished products suitable for close-fitting and indoor application scenarios.

✅ 3. Controllable Uniform Shrinkage, Improve Fabric Density & Hand Feel

The high-shrinkage core delivers stable and uniform thermal shrinkage, with a dry heat shrinkage rate of 25%-30% at 180°C. Manufacturers can flexibly adjust the final fabric density, thickness and stiffness by controlling heating temperature and holding time. After heat treatment, the fabric has a tighter fiber structure, fuller suede hand feel, better dimensional stability and no local shrinkage deformation, which is the core raw material for producing high-grade artificial suede, velour and high-density felt materials.

✅ 4. 2.5D Moderate Denier + 51mm Standard Length, Wide Process Compatibility

The 2.5D fine denier specification balances fiber strength and softness, suitable for producing delicate suede fabrics, high-density filter materials and thin-type lining materials. The 51mm standard cut length is universally compatible with all mainstream carding machines, needle punching lines, spunlace equipment and ring spinning systems at home and abroad. It can be directly put into production without equipment modification or major process adjustment, and runs stably on high-speed production lines with low fly waste.

✅ 5. Excellent Batch Uniformity, Stable Finished Product Quality

Standardized closed-loop composite spinning production ensures precise control of sheath-core concentricity, melting point uniformity, shrinkage consistency and length accuracy for each batch. The batch-to-batch fluctuation of shrinkage rate is controlled within ±3%, avoiding the common quality problems of uneven shrinkage, local hard spots and inconsistent hand feel in mass production. It supports 24-hour uninterrupted mass production, with low defective rate and stable finished product performance.

Product Specification Table
Item Detailed Parameter
Product Name 2.5D×51MM High Shrinkage Low Melting Sheath-Core Polyester Staple Fiber
Standard Spec 2.5D Fine Denier, 51mm Standard Fixed Cut Length
Fiber Structure Concentric sheath-core bicomponent structure, 100% virgin PET polymer
Sheath Layer Modified low-melting polyester, melting point 120-130°C, acts as thermal bonding agent
Core Layer High-shrinkage polyester, provides controllable thermal shrinkage & structural strength
Sheath-Core Ratio 30% sheath / 70% core, optimized balance of bonding strength and shrinkage performance
Dry Heat Shrinkage 25%-30% at 180°C for 15min, controllable shrinkage by adjusting heating temperature
Breaking Tenacity ≥2.8 cN/dtex, good mechanical strength for carding, web forming and post-processing
Elongation at Break 30% ± 5%, balanced toughness to avoid fiber breakage during processing
Crimp Number 10-13 crimps / 25mm, moderate crimp for good fiber cohesion and web uniformity
Oil Content 0.10%-0.18%, uniform oiling for antistatic performance and smooth processing
Bonding Feature Sheath melts evenly at low temperature, forms firm inter-fiber bond without chemical adhesive
Shrinkage Uniformity ≤±3% batch fluctuation, uniform shrinkage across the whole fabric without local deformation
Compatible Process Carding, needle punching, spunlace, air laid, ring spinning, woven & knitted fabric processing
Main Application Artificial suede, shoe material lining, synthetic leather base, automotive interior, filter material, garment interlining, hard cotton
Package 25kg Moisture-Proof Woven Bag, Pallet Packed for Global Bulk Export Shipment
Frequently Asked Questions
Q1: How does this fiber achieve both bonding and shrinkage? What is its structure?
A1: It adopts a concentric sheath-core bicomponent structure. The low-melting sheath melts at 120-130°C for thermal bonding, while the high-shrinkage core provides controllable thermal shrinkage. Both functions are completed in one heating process.
Q2: What is the exact melting point and shrinkage rate of this fiber?
A2: The sheath melting point is 120-130°C. The dry heat shrinkage rate is 25%-30% under 180°C for 15 minutes. The actual shrinkage can be adjusted by controlling the heating temperature and time.
Q3: Is chemical adhesive needed when using this fiber for production?
A3: No chemical adhesive is required at all. The fiber relies on the melted sheath layer to realize physical bonding between fibers, which is environmentally friendly, free of VOC emission, and has firm and durable bonding points.
Q4: Is 51mm length compatible with carding, needle punching and spinning processes?
A4: Yes, 51mm is a standard general specification, fully compatible with mainstream carding machines, needle punching lines, spunlace equipment and ring spinning systems, and can be directly put into production.
Q5: Can it be blended with other fibers such as ordinary polyester, viscose and cotton?
A5: Absolutely. It has excellent blending compatibility and can be mixed with various fibers in any proportion. You can adjust the blending ratio to control the final shrinkage, softness and product cost.
Q6: What are the main application industries of this high shrinkage low melt fiber?
A6: It is widely used in artificial suede, shoe material lining, synthetic leather base, automotive interior, industrial filter material, garment interlining, hard cotton and other fields.
Q7: Can I get free samples for melting point, shrinkage and bonding test?
A7: Small test samples are provided free of charge for melting point test, shrinkage rate verification, bonding trial and production line trial production.
Product Details
Name: High-end High Shrinkage And Low Melt Cotton Fiber
Specification: 2.5D*51MM
Native/Regenerative: Native
Color: White
More Sizes: Customizable
Siliconized/Non-Silicified: Non-silicified

Ms. Heidi

Overseas Sales Manager

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