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What does the low melting point of Low Melting Yarn mean?

2025-08-22

In the textile industry, Low Melting Yarn is a special fiber material distinguished by its low melting temperature. So, what exactly does the low melting point of Low Melting Yarn mean? Simply put, it means that the yarn melts or softens at a relatively low temperature, enabling bonding, shaping, or compounding with other fibers.

Traditional synthetic fibers, such as polyester and nylon, typically require higher temperatures to melt. Low-melting-point polyester (Co-PET) or low-melting-point nylon, can be designed to have a melting point between 90°C and 180°C, far lower than the melting points of ordinary fibers. This low melting point eliminates the need for additional glue or adhesives during processing; instead, they can be self-bonded by heating, significantly simplifying the production process, reducing costs, and minimizing environmental pollution.

Applications of Low Melting Yarn

Low-melt-point yarns have a wide range of applications, and their unique properties make them crucial in a variety of fields.

Apparel

Low-melt-point yarns can be used as adhesives in seamless underwear, sportswear, footwear, and other products, achieving seamless stitching and enhancing wearer comfort and aesthetics. For example, in the manufacture of shoe uppers, low-melt-point yarns are blended with regular yarns. Upon heating, the low-melt-point yarns melt, acting as an adhesive and strengthening the upper.

Home Textiles

Low-melt-point yarns are commonly used in the manufacture of carpets, mattresses, curtains, and other products. Through melt bonding, the material's stability and durability are enhanced.

Automotive

Low-melt-point yarns are used in the manufacture of sound insulation and seat materials for automotive interiors, leveraging their adhesive properties to provide stability and shaping, improving production efficiency.

Healthcare

In disposable medical supplies, masks, medical bandages, and other products, the self-adhesive properties of low-melt-point yarns ensure product durability and safety.

Advantages of Low Melting Yarn

The widespread use of Low Melting Yarn is due to its significant advantages:

  • Environmental Protection: It reduces the use of glue and adhesives, lowers the emission of harmful chemicals, and aligns with green production trends.
  • Efficiency: It simplifies the production process, shortens production cycles, and improves production efficiency.
  • Versatility: It can be used alone or blended with other fibers such as cotton, linen, and polyester to create composite materials with specialized properties.
  • High Added Value: Products made with Low Melting Yarn typically exhibit stronger bonding, improved form stability, and a more comfortable wearing experience, thereby increasing their added value.

Comparison: Low Melting Yarn vs. Ordinary Fibers

Aspect Low Melting Yarn Ordinary Fibers
Melting Point 90°C – 180°C (low) Above 250°C (high)
Bonding Method Self-bonding by heating (no glue needed) Requires additional adhesives
Environmental Impact Eco-friendly, fewer chemicals Higher chemical usage
Production Efficiency Fast, simplified process Slower, more complex
End-Use Properties Durable, stable, comfortable Standard durability

Low Melting Yarn, due to its unique low melting point, has become an indispensable material in the modern textile industry. It not only revolutionizes traditional bonding methods but also, with its environmentally friendly, efficient, and versatile advantages, is driving innovation and development in various industries, including textiles, automotive, and medical.