Shanghai Different Advanced Material Co., Ltd. is one of the leading manufacturers and suppliers of ptt fiber in China. With abundant experience, we are committed to providing high quality custom service for global clients. Welcome to wholesale premium ptt fiber made in China here from our factory.
High-Performance PTT Staple Fiber
Inherent Stretch. Reliable Recovery. Lasting Shape.
Powered by PTT's distinctive molecular structure, our staple fiber offers durable elasticity, excellent resilience, and soft fabric hand.
Designed for blended yarns and performance-driven textile applications.
Product Overview
PTT fiber, chemically polytrimethylene terephthalate staple, anchors the elastic and comfort end of the Different differentiated portfolio. The chain condenses terephthalic acid with 1,3-propanediol. That diol folds the macromolecule into a Z-shaped helical spring. Elasticity is inherent and durable, with shape memory. Total recovery approaches 100 percent after 20 percent elongation. Rebound far exceeds ordinary polyester.
Sixty years of synthetic fiber manufacturing stand behind this national high-tech enterprise. Its differentiated staple spinning engineering applies directly to the polymer. PTT staple fiber is stably supplied from 1.2D to 15D, in cut lengths of 38 to 76 mm. The staple feeds elastic yarns blended with cotton, viscose, or wool, and equally suits filling, nonwoven, and technical uses. This fiber gives brands a workable balance of performance and sustainability at competitive cost.
Bio-based PTT Technology
PTT owes its elasticity to an odd-carbon effect in the chain. PET uses ethylene glycol, with two methylene groups; PTT uses 1,3-propanediol, with three. The odd count stops adjacent ester groups from lying flat, so the macromolecule folds into a coiled, spring-like helix. Stretch it and the crystalline helices unwind, storing energy. Remove the load and they recoil. Recovery far exceeds PET, with no elastic additive.
Of the two monomers, 1,3-propanediol (PDO) can be made by fermenting plant starch such as corn; the material is known as bio-PDO. Polymerizing bio-PDO with petroleum-derived purified terephthalic acid yields the resin spun into Bio-based PTT Staple Fiber. Roughly 37 percent of the polymer mass is plant-fixed carbon. The route cuts carbon footprint and non-renewable feedstock use.
On the spinning line, the polymer passes through crystallization-drying, melt spinning, drawing and heat-setting, crimping, and cutting. The melting point is about 228 degrees Celsius, roughly 30 degrees below PET, so processing temperatures drop, line energy use falls, and the hand comes out softer.
Core Advantages
SORONA®-Benchmarked Quality
Different PTT fiber shares the same bio-based PTT polymer system as DuPont SORONA®, with elasticity, hand-feel, and dyeing performance benchmarked against the international standard -- a dependable choice for brands localizing or diversifying their SORONA®-class material supply.
Near-Spandex Elasticity Without Spandex Fatigue
Total recovery approaches 100 percent after 20 percent elongation, with durable, stable rebound. Unlike spandex-blended fabrics that sag after prolonged use, PTT fabrics stay crisp and elastic through dozens of washing and drying cycles -- true one-time setting, everlasting shape.
Soft as Nylon, Lofty as Acrylic, Easy-Care as Polyester
PTT exhibits low modulus for a soft, draping, skin-friendly touch; its loft brings warmth for insulation filling; and it inherits polyester stain resistance, easy washing, quick drying, and dimensional stability -- a combination no single commodity fiber can match.
Atmospheric-Pressure Dyeability Saves Energy and Delivers Vivid Color
Disperse dyes exhaust at 98-110 degrees Celsius under atmospheric pressure -- 20-30 degrees lower than ordinary polyester -- eliminating high-pressure dyeing vessels and carriers while delivering brilliant shades and good color fastness.
Bio-Based and Low-Carbon: A Built-In Sustainability Story
Plant-fermented bio-PDO replaces part of the petroleum feedstock, giving a bio-based carbon content of roughly 37 percent and a significantly lower carbon footprint than conventional petroleum-based fibers -- aligned with brand ESG and Scope 3 reduction targets. This positions PTT staple fiber among the most commercially scalable bio based fibres available to the textile industry today.
Chlorine, Sun, and Stain Resistant: Broad Versatility
Resistant to chlorine bleach and sunlight for swimwear and outdoor use; stain-resistant and easy to clean for carpets and home textiles. From elastic fabrics to filling, nonwovens, and automotive textiles, this Bio-based PTT Staple Fiber covers an exceptionally wide product map.
Technical Specifications
|
Parameter |
Specification |
|
Product Name |
PTT fiber(polytrimethylene terephthalate staple fiber) |
|
Fiber Type |
Bio-based PTT Staple Fiber |
|
Benchmark |
performance comparable to DuPont SORONA®-class PTT |
|
Bio-based Carbon |
approx. 37%, |
|
Denier Range |
1.2D - 15D(customizable) |
|
Cut Length |
38mm / 51mm / 64mm / 76mm(customizable) |
|
Tenacity |
3.5 - 4.2 cN/dtex(application-tunable) |
|
Dyeing |
atmospheric-pressure dyeing at 98-110℃ with disperse dyes |
|
Crimp |
mechanical crimp optional for lofty filling |
|
Color |
raw white standard, custom available |
|
Packaging |
standard bale (approx. 250-300 kg) or customized |
Applications
Solutions for Every Industry
Leveraging its combined strengths of elasticity, softness, easy care, and bio-based origin, PTT fiber serves the following key markets.
Different supplies PTT staple fiber in customizable denier, cut length, and crimp, supporting both 100% PTT and multi-component blend development.
Within the fast-growing bio based fibres landscape, PTT offers the strongest balance of elasticity, processability, and cost -- a practical upgrade path for mills currently running ordinary polyester.
Active & Outdoor Apparel
Yoga leggings, fitness wear, running tees, golf shirts, swimwear (chlorine-resistant), compression garments -- natural stretch replacing part of spandex without sagging over time;
01
Intimate Apparel
Premium underwear, bras, thermal base layers, hosiery -- soft, skin-friendly, gently elastic without constraint;
02
Wrinkle-free Fashion & Shirting
Business shirts, memory-pleat dresses, travel wrinkle-resistant garments -- one-time setting stays crisp, iron-free;
03
Filling Materials
Down-alternative jackets, padded coats, quilts -- lofty, lightweight, with durable rebound;
04
Carpet & Home Textiles
Residential and commercial carpet, automotive carpet (resilient, anti-crush, stain-resistant), upholstery, curtains;
05
Technical & Blended Uses
Elastic yarns blended with cotton, wool, or viscose, decorative nonwovens, automotive interior fabrics.
06
Sustainability & Certifications
Global Standards & Audit
Working closely with international certifi ation bodies.
We cooperate with international certification bodies and independent third-party auditors to maintain full compliance with GRS, RCS and OEKO-TEX® Standard 100 requirements for our textile fiber materials.
GRS
Global Recycle Standard
RCS
Recycled Claim Standard
OEKO-TEX®
Standard 100
Shanghai Manufacturing Facility
Our Shanghai manufacturing facility operates under strict ISO 14001 environmental management and ISO 50001 energy manag!ement systems. Recognized as a National Green Factory, we are committed to sustainableig throughout ourproduction, energy efficiency, and low-carbon manufacturi throughout our operations.
ISO 14001
Environmental Mgt
ISO 50001
Energy Mgt System
National Gree
Factory Certified
Contact Us
For PTT fiber samples, technical datasheets, or custom specification quotations, please contact the Different sales and technical team. We provide denier, cut-length, crimp, and blending recommendations tailored to your fabric development needs, and support brand customers through bio-based content testing, trial spinning, and sampling. We look forward to co-developing high-performance bio-based elastic fiber applications for the future.
Tell us About Your Needs
Different is a trusted manufacturer and long-term partner for your business. Please contact us by filling out the form below, we'll get in touch with you shortly to discuss your specific needs.
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