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Low Melting Yarn (LMY)

-- Steady & Reliable Manufacturer --

Introduction

Low Melting Yarn, often abbreviated as LMY, is a revolutionary thermoplastic fiber specifically engineered to serve as a thermal adhesive in the textile industry. Unlike traditional yarns, LMY has a significantly lower softening and melting point, typically ranging from 85∘C to 180∘C. When heated, the LMY melts and binds adjacent fibers or components together, eliminating the need for chemical binders, complex sewing, or external adhesives. This makes it an ideal choice for creating seamless, lightweight, and environmentally friendlier composite fabrics. We offer LMY in various base polymers, most commonly Polyester (Co-PET) and Polyamide (Co-PA), providing different melting temperature ranges and tensile strengths to suit diverse manufacturing requirements. This unique bonding capability has made LMY indispensable in composite material production, technical textiles, and high-quality functional apparel. Our manufacturing process ensures excellent consistency in melting performance and tenacity, which is crucial for uniform bonding results across large-scale production runs. The shift towards LMY represents a significant step forward in simplifying textile lamination and reinforcement.

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Specification

Denier Range 20D - 300D
Base Polymer Co-PET, Co-PA (customizable)
Melting Point 85∘C to 180∘C (±3∘C)
Color Raw White, Semi-Dull, Black
Tenacity 1.5 cN/dtex - 4.5 cN/dtex
Filament Count F12 to F96 (Customized)
Package Type Paper Bobbin (Conical or Cylindrical)

Application

The self-adhesive nature of Low Melting Yarn makes it essential across various industries where strong, clean bonding is required.

Footwear Components: LMY is extensively used to reinforce shoe uppers, toe puffs, and heel counters, providing structural integrity without stiffeners.

Filter Media: In non-woven filtration fabrics, LMY serves as the binder to hold staple fibers together, creating porous and highly effective filter structures for air and liquid purification.

Automotive Interiors: Used in lamination for headliners, trim, and sound insulation panels for cleaner assembly and lighter weight.

Apparel Interlinings: Creates seamless seams and reinforcement in high-end sportswear, innerwear, and technical garments, replacing traditional fusible interlinings.

Composite Materials: Utilized in fiberglass and carbon fiber prepregs as a binder, enabling cleaner composite production.

Advantage

  • Environmental Efficiency: Eliminates the need for solvent-based or aqueous chemical adhesives, reducing VOC emissions and streamlining the production process.

  • Superior Bond Strength: Achieves a consistent, strong, and permanent thermal bond across the entire structure, enhancing product durability and stability.

  • Process Simplification: Allows manufacturers to integrate the bonding step directly into weaving, knitting, or non-woven production, significantly reducing labor and time.

  • Excellent Softness and Drape: Unlike chemical adhesives, LMY retains the natural softness and flexibility of the textile, crucial for comfortable apparel and flexible composites.

  • Wide Processing Range: Our Co-PET and Co-PA variants cover a broad range of melting temperatures, making them compatible with almost any existing fiber blend or machine setup.

Payment and Shipping

We are committed to facilitating secure and timely global trade. For initial orders, we accept standard international payment terms including Telegraphic Transfer (T/T) and Letter of Credit (L/C) at sight, subject to credit checks for long-term partners. For established accounts, flexible credit terms up to 60 days may be negotiated. Our lead time is typically 15-25 days after deposit confirmation, depending on the specific denier and order volume. We utilize major global carriers and offer various Incoterms including FOB (China Port), CIF (Destination Port), and DDP (Delivered Duty Paid) for select regions, ensuring seamless delivery. All shipments are palletized, stretch-wrapped, and clearly labeled to protect the integrity of the yarn during transit.

Common Questions

  • Q: What is the primary difference between Co-PET and Co-PA LMY?
  • A: Co-PET is generally used for bonding polyester-based fabrics and offers melting points from 110∘C to 180∘C. Co-PA (polyamide-based) is suited for nylon/polyamide fabrics and offers lower melting points, typically 85∘C to 110∘C, making it ideal for heat-sensitive materials.
  • Q: Can LMY be used with natural fibers like cotton or wool?
  • A: Yes, LMY can be blended or intertwined with natural fibers. Upon heating, the molten LMY encapsulates the natural fibers, providing excellent dimensional stability and reinforcement without compromising breathability or feel. Testing a small sample is always recommended to confirm optimal temperature settings.
  • Q: Does LMY affect the dyeing process of the final fabric?
  • A: No, our Low Melting Yarns are chemically stable and designed to be compatible with standard textile dyeing processes. We recommend using dope-dyed LMY for deep colors where color fastness is critical, but the raw white yarn can typically withstand subsequent high-temperature dyeing without degradation.
About
GC FIBER
GC FIBER has been a special textile factory in China since 2006 years. We are devoted to researching, developing, producing, and selling special and functional eco-friendly textile products.
Our products include Biodegradable Yarn, Low Melting Yarn, ECDP Yarn, Anti Static Yarn, HDPE Yarn, Bio-component Yarn, and Polyester Filament Yarn.
We are always interested in cooperating with our guests to develop new material.
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