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Flame Retardant Polyester Staple Fiber 2.5D×51MM

Our halogen-free flame retardant polyester staple fiber 2.5DX51MM provides permanent fire safety for industrial and commercial use. Using eco-friendly phosphorus-based technology with 3D crimped structure, it retains flame retardancy after dozens of washes, emits low smoke and no toxic gases. Available in virgin and GRS recycled grades, it suits hospital linens, protective fabrics and interior decoration manufacturing.
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Product Overview

Jiangyin Zhongjin Chemical Fiber Co., Ltd. (JZCF), a leading Chinese polyester fiber manufacturer since 2015, presents our premium flame retardant polyester staple fiber — an eco-friendly, high-performance material engineered for industrial manufacturers, home textile brands, healthcare suppliers, and industrial textile producers. Built on internationally recognized phosphorus-based flame retardant technology, our halogen-free fiber delivers permanent flame retardancy, low smoke emission, and non-toxic combustion performance, outperforming traditional halogenated and post-finished flame retardant products. Available in virgin and GRS-certified recycled grades, it is widely used in hospital linens, security protective fabrics, interior decoration, and industrial nonwovens, meeting global safety and sustainability standards.

Core Features & Solution Value

Permanent Flame Retardancy for Uncompromising Safety

Industry Pain Point: Conventional post-finished flame retardant fabrics lose core performance after repeated washing, while halogen-based materials release toxic suffocating gases during combustion, creating serious safety hazards and global market compliance risks.

Solution: Our permanent flame retardant polyester fiber embeds flame retardant components through fiber-level chemical modification, adopting an eco-friendly phosphorus-based system with zero halogen elements.

Verifiable Evidence: Flame retardant performance remains stable after dozens of washing cycles, with ultra-low smoke emission and no toxic suffocating gases during combustion, fully complying with international fire safety regulations.

Balanced Comfort & Durability for Diverse Applications

Industry Pain Point: Traditional flame retardant fibers have poor bulkiness, low elasticity, and weak air permeability, leading to uncomfortable hand feel and short service life in high-frequency use scenarios.

Solution: The unique 3D crimped structure of our flame retardant polyester staple fiber delivers exceptional bulkiness, elasticity, and rebound resilience, with excellent air permeability, heat resistance, and long-term durability in harsh environments.

Verifiable Evidence: Widely adopted in high-demand scenarios including hospital bed sheets, fireproof protective clothing, sofa covers, and industrial filter materials, maintaining stable performance through long-term continuous use.

Cost-Effective & Sustainable Bulk Supply

Industry Pain Point: High-performance flame retardant fibers carry prohibitive costs, with scarce sustainable recycled options, making it difficult for bulk production to balance performance, cost, and environmental responsibility.

Solution: Leveraging polyester’s inherent cost advantage, we offer both virgin and GRS-certified recycled flame retardant polyester fiber to fully adapt to large-scale production needs.

Verifiable Evidence: Large-scale integrated production reduces unit costs while meeting global sustainable procurement standards, supporting stable bulk orders for industrial partners worldwide.

Polyester Sofa Non-wovens

Technical Specifications

Parameter

Standard Specification

Fiber Type

Flame Retardant Polyester Staple Fiber

Linear Density & Length

1.5DX38MM / 2.5DX51MM (customizable)

Flame Retardant System

Eco-friendly phosphorus-based, 100% halogen-free

Crimp Structure

3D crimped

Material Grade

Virgin / GRS-Certified Recycled Polyester

Quality Control & Certifications

We implement a stringent full-process quality management system, with every batch of our flame retardant polyester staple fiber strictly tested to meet leading international standards. Our products hold authoritative certifications including STANDARD 100 by OEKO-TEX®, ISO 9001:2015, and GRS certification for our recycled series, ensuring consistent quality and full compliance with global market access requirements.

Manufacturing & Supply Advantages

As a fully integrated polyester manufacturer with an annual production capacity of 50,000 tons, we guarantee stable supply and on-time order fulfillment for our partners. Our 33,333 sq.m production base in Jiangyin, Jiangsu Province, is just 120 km from Shanghai Port, enabling efficient logistics and fast global delivery. We also offer customized specialty fiber solutions, with a professional technical team providing tailored support to match the unique needs of different application scenarios.

FAQ

Does the flame retardant performance of the fiber degrade after repeated washing?

Unlike traditional post-finished flame retardant products, our permanent flame retardant polyester fiber achieves flame retardancy through fiber-level chemical modification. Its core flame retardant properties remain stable after dozens of washing cycles, ensuring long-term safety for end products.

Do you offer sustainable recycled versions of this flame retardant fiber?

Yes. In addition to our virgin fiber series, we provide GRS-certified recycled flame retardant polyester staple fiber with the same superior flame retardant and mechanical performance, helping our partners meet global sustainable development and procurement requirements.

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