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Thermal Bonding & Low Melt Yarns

-- Steady & Reliable Manufacturer --

Introduction to Thermal Bonding Fibers

Our Low Melting Yarn serves as an innovative, eco-friendly alternative to traditional chemical adhesives in textile manufacturing. Often referred to as "hot melt yarn" or "fusible yarn," these fibers are designed to melt at specific, lower temperatures, acting as a bonding agent when heat is applied.

This technology allows manufacturers to bond fabrics, reinforce structures, or create specific shapes without the mess, toxicity, or air permeability issues associated with liquid glues. It simplifies production processes and improves the final product's recyclability.

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Material Specifications

Property Details
Material Base 100% Low Melt Polyester or Sheath-Core (Standard PET Core / Low Melt Sheath)
Melting Point Options Available ranges: 110°C, 160°C, 180°C (Customizable)
Yarn Count 20D - 1000D+ available depending on structure
Type Filament (FDY) or Staple Fiber
Color Raw White (Transparent after melting) or Dope Dyed Black

Key Applications

Low melt technology is crucial in industries requiring precise bonding and structural integrity:

  • Footwear Uppers: Used extensively in 3D fly-knitting to create structured, durable shoe uppers without external glue.
  • Automotive Interiors: Bonding headliners, door panels, and trunk carpets, ensuring low VOC emissions.
  • Technical Non-wovens: Filtration media and geotextiles where thermal bonding provides superior stability over chemical binders.
  • Edge Sealing: Preventing fraying in woven or knitted fabrics.

Core Advantages

Integrating thermal bonding yarns offers significant process improvements:

  • Eco-Friendly & Clean Process: Eliminates toxic solvents and volatile organic compounds (VOCs) associated with traditional glues. Cleaner factory environment.
  • Superior Breathability: Unlike a solid film of glue, melted fiber bonding maintains the porous structure of the fabric, allowing air and moisture permeability.
  • Precise Control: The bonding occurs only where the yarn is placed and heated, offering exact structural definition.
  • Improved Recyclability: As the bond is same-material based (polyester bonding polyester), the final product is easier to recycle than glue-laminated materials.

Commercial Terms

Standard shipping and payment procedures for our manufacturing clients:

  • Payment Terms: 30% T/T advance deposit required to initiate production, 70% balance against copy of B/L. L/C options discussed for large volume contracts.
  • Shipping Terms: Primarily FOB China ports. We can arrange freight for CIF/DAP upon request.
  • Lead Time: typically 15-25 days after deposit confirmation, depending on order volume and specifications.

Frequently Asked Questions

  • Q: What is the difference between "Full Melt" and "Sheath-Core" low melt yarn?
  • A: "Full Melt" yarn melts entirely at the designated temperature, disappearing into the fabric matrix to act purely as an adhesive. "Sheath-Core" has a standard polyester core (high melt point) surrounded by a low-melt sheath. When heated, the sheath melts to bond, but the core remains intact, providing structural strength. Sheath-core is better when you need both bonding and tensile strength.
  • Q: How do I determine the correct melting point for my application?
  • A: The melting point should be lower than the damage temperature of your main fabric but high enough to withstand any subsequent processing steps (like dyeing or molding). 110°C is common for delicate fabrics, while 160°C-180°C is used for more robust industrial applications.
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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