The main component of hot-melt yarn is usually thermoplastic resin, which softens or melts when heated and quickly solidifies and forms a strong bond when cooled. Different types of thermoplastic yarn may contain different resin compositions, but here are some common thermoplastic resins:
Polyamide (Nylon): Nylon is a commonly used hot melt yarn component and is widely used in a variety of bonding applications due to its good abrasion resistance and strength.
Polyester: Polyester hot-melt yarn has good adhesive properties and heat resistance and is often used in automotive interiors and furniture manufacturing.
Polyethylene: Polyethylene hot-melt yarn has good chemical resistance and environmental stability, and is suitable for outdoor products and packaging materials.
Polypropylene: Polypropylene thermal melt yarn is favored for its lightweight, heat resistance, and chemical stability and is often used to make nonwovens and other industrial products.
Polyolefin: This is a versatile hot melt yarn composition that has good bonding properties and weather resistance and is suitable for a variety of industrial applications.
EVA (ethylene vinyl acetate copolymer): EVA hot melt yarn has good flexibility and transparency and is often used in crafts and decorations that require clear bonding lines.
Polyurethane: Polyurethane hot-melt yarn has excellent wear resistance and flexibility and is suitable for footwear manufacturing and apparel industries.
Thermoplastic Rubber: This type of hot melt yarn has good elasticity and impact resistance, making it suitable for bonding applications that require flexibility.
These resin compositions can be tailored and formulated to meet specific application needs to meet varying performance requirements. For example, properties such as bonding strength, flexibility, heat resistance, and aging resistance of hot-melt yarn can be adjusted by changing the type, molecular weight, additives, and fillers of the resin.
