Shanghai Different Advanced Material Co., Ltd. is one of the leading manufacturers and suppliers of dope-dyed high light fastness staple fiber in China. With abundant experience, we are committed to providing high quality custom service for global clients. Welcome to wholesale premium dope-dyed high light fastness staple fiber made in China here from our factory.
Dope-Dyed High Light Fastness Staple Fiber
Holds Grade 4-5 After 1000 Hours Of Sun Exposure
A conventional masterbatch starts to fade after about a year outdoors, so the pigment is ground finer and paired with a UV absorber and a hindered amine light stabilizer before spinning. Dope-Dyed High Light Fastness Staple Fiber holds grade 4-5 after 1000 hours of exposure and the same grade at 180 C for 3 minutes.
Product Overview
Dope-Dyed High Light Fastness Staple Fiber is produced by melt spinning with dedicated weather-resistant pigments and synergistic light stabilizer package, compatible with mainstream spinning and nonwoven lines for stable production. It mainly adopts highly stable complex inorganic pigments, with a small amount of organic pigments added only for specific hue requirements. Fine pigment dispersion minimizes fading risk in outdoor environments.Color is built into the fiber matrix instead of surface coating, so no local fading caused by abrasion. It features excellent heat fastness to avoid shade change during heat setting and hot pressing. Custom color matching against swatches is available. Cross-sections including round, trilobal and hollow are optional, and crimp profile is customizable. Downstream processing requires no dyeing, cutting wastewater and chemical consumption. It is well suited for outdoor and automotive textiles demanding long-term weather resistance and consistent color. The fiber is supplied in standard bales.

Technology Principle
Fading mechanism: UV photons break pigment chromophores and trigger free radicals within polyester matrix, leading to color fading and shade drift. Outdoor weathering combines UV radiation, heat, moisture and oxygen. Single-condition lab tests often underestimate actual degradation.
Pigment selection: Complex inorganic pigments feature stable crystal structure formed by high-temperature calcination, the preferred choice for long-service outdoor coloration. Organic pigments are only dosed sparingly for special hues.
Synergistic stabilization system: UV absorber converts UV energy into heat; hindered amine light stabilizer traps free radicals and interrupts oxidative chain reaction; antioxidant suppresses peroxide formation during processing and service. The three components work synergistically, while single additive provides limited protection.
Heat fastness assurance: Dope-Dyed High Light Fastness Staple Fiber withstands high-temperature finishing, with no visible shade variation during heat setting, hot pressing and ironing, suitable for technical textiles requiring thermal treatment.
Core Advantages
1) Outstanding light fastness: Dope-Dyed High Light Fastness Staple Fiber reaches grade 4–5 after 1000 hours of sun exposure per GB/T 8427, resisting fading under long-term outdoor sunlight.2) Stable shade under heat: Color remains consistent during heat setting and hot pressing, adapting to high-temperature finishing.3) Weather-resistant formulation: High-performance inorganic pigments combined with compound light stabilizers, minimizing hue drift outdoors.4) Durable bulk coloration: Pigments embedded inside fiber, unlike surface coating, no localized fading from abrasion or washing.5) Wide customization: Hue, fineness, cut length, cross-section and crimp are customizable.

Technical Specifications
|
Parameter |
Value |
|
Composition |
PET + weathering-grade pigment |
|
Fiber type |
Staple fiber |
|
Sun exposure |
1000 h, grade 4-5 |
|
Heat fastness |
180 C x 3 min, grade 4-5 |
|
Fineness |
1.0 – 15 denier |
|
Cut length |
20-120mm |
|
Dry tenacity |
≥4.0 cN/dtex |
|
Elongation |
25 – 45% |
|
Cross-section |
Round / trilobal / hollow, Customizable on request |
|
Crimp |
Adjustable to order |
|
Packaging |
Standard bale ~250-300 kg |
Applications
1) Outdoor shading textiles: Dope-Dyed High Light Fastness Staple Fiber is spun and woven into awnings, shade curtains, patio umbrella fabrics, outdoor furniture upholstery.
2) Automotive & transport textiles: Spun and woven into automotive headliner, door panel fabric, truck tarpaulin, safety mesh.
3) Signage & flag fabrics: Spun and woven into flag cloth, light-box fabric, outdoor display material.
4) Agricultural & horticultural textiles: Spun and woven into shade nets, insect-proof nets, greenhouse covering substrates.
5) Technical geotextile & tarpaulin: Spun and woven into geotextiles, bulk container fabric, outdoor storage covers.
Note: Actual weathering lifespan depends on UV irradiance, temperature, humidity, fabric construction and finishing. Sun-exposure testing under end-use conditions is recommended before mass production.

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 samples, bulk pricing, contact the Different sales team. Tell us where the goods will be used and how they will be installed, the target hue, whether an automotive or other specific standard is required, plus denier and monthly volume. Advisors will match pigment and stabilizer package for this Dope-Dyed High Light Fastness Staple Fiber.
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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