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What are the uses of Low-melting Yarn?

2025-11-28

I. What is Low-melting Yarn? A new type of fiber that revolutionizes traditional adhesives

Low-melting Yarn, also known as heat-melting yarn, is a special functional fiber that can melt and bond at relatively low temperatures (usually below 180 degrees Celsius). It eliminates the need for traditional glues or chemical adhesives, instead using its own viscous properties after melting through heat setting or hot pressing to perfectly and seamlessly bond other fibers or materials together.

This unique property makes it a key material for achieving green environmental protection and process upgrades in modern textiles, composite materials, and industrial manufacturing. Compared to glues that rely on chemical solvents, Low-melting Yarn produces almost no harmful volatile substances during the bonding process, fully responding to the global demand for environmentally friendly bonding technologies.

II. Core advantages of Low-melting Yarn: Why can it widely replace glue?

The rapid adoption of Low-melting Yarn in many industries is mainly due to the following advantages:

  • Environmentally friendly and non-toxic: Its biggest feature lies in its physical bonding process, avoiding the release of formaldehyde and other chemicals found in traditional glues.

  • High and uniform bonding strength: The yarn is evenly distributed throughout the fabric or composite material, forming a complete and uniform adhesive network, improving the product's washability and durability.

  • Simplified process: Replacing complex gluing and drying processes, bonding can be completed directly through heating, greatly simplifying the production process and improving production efficiency.

  • Superior feel: Materials bonded with low-melting-point polyester or nylon yarn have a softer and more breathable feel compared to glued products, avoiding issues like stiffness or poor breathability.

III. Five Main Uses of Low-melting Yarn (Application Area Analysis)

The answer to the question "What are the uses of Low-melting Yarn?" covers a wide range of fields, from our daily wear to high-tech industries:

  1. Shoe manufacturing: Low-melting Yarn is a key material for achieving a seamless bond between flyknit uppers and linings. Through hot-melt bonding, it improves breathability and lightweight of the upper and prevents delamination problems common in traditional linings.

  2. Apparel fabric industry: Widely used for edge bonding in seamless underwear, sportswear, and functional fabrics, maintaining elasticity, improving wearing comfort, and eliminating friction caused by traditional seams.

  3. Filter materials: Used for bonding air filters, liquid filter cloths, and nonwoven fabrics. Its uniform bonding characteristics ensure that the material's porosity remains unaffected, maintaining high-efficiency filtration performance.

  4. Automotive interior manufacturing: Ideal for composite materials such as headliners, carpets, and seat foams, providing strong adhesion while helping to achieve lightweight goals.

  5. Industrial and civil engineering: Used in insulated cables, pipe wrapping, and glass fiber prepregs, providing high-strength structural support and simplifying complex composite manufacturing processes.

With increasing global emphasis on sustainable development and green processes, the market demand for hot-melt yarn is growing rapidly. Manufacturers are continuously launching more innovative products to meet increasingly sophisticated application needs.