1. What is Polyester Hot Melt Yarn?
Polyester hot melt yarn is a special fiber material used for bonding in non-woven, knitted, and woven products. It combines with regular polyester or other fibers to create soft, strong, washable, and easy-to-manage materials. This yarn is eco-friendly, making it a valuable resource in modern textile production.
2. Raw Materials for Polyester Hot Melt Yarn
The main ingredient is low melting point polyester chips. These chips are modified polyester, made by adding certain chemicals to standard polyester. The resulting yarn has a low melting point, high bonding strength, and stable physical and chemical properties.
3. How is Hot Melt Yarn Made?
Hot melt yarn is produced using a process called melt spinning. After forming, the fibers can be melted again with heat. This makes them thermoplastic fibers, which are easy to shape and bond.
4. Characteristics of Polyester Hot Melt Yarn
- Low specific heat and thermal conductivity. This means it has good heat resistance and insulation. It is one of the better synthetic fibers.
- Thermoplastic, but lower resistance to melting
5. Applications of Hot Melt Yarn
Polyester has a smooth surface and tightly arranged molecules, which gives it excellent heat resistance among synthetic fabrics. This yarn can be used to make pleated skirts that hold their shape well. However, it is less resistant to melting. It can form holes if it comes into contact with cigarette ashes or sparks, so wearers should avoid such contact.
6. Different Types of Low Melting Point Polyester Chips for Hot Melt Yarn
6.1. Low Melting Point Hot Melt Yarn (100℃-130℃)
- Features:
- Suitable for heat-sensitive materials, allowing quick bonding at low temperatures.
- Energy-saving, reducing production costs.
- Easy to shape and fit for various sealing applications.
- Raw Materials:
- PET chips with melting point range: approximately 100℃-130℃.
- Chips features; high bonding strength, suitable for packaging, textiles, and composite materials.
6.2. Medium Melting Point Hot Melt Yarn (130℃-160℃)
- Features:
- Suitable for general industrial applications, providing moderate bonding strength and toughness.
- Better heat resistance for higher temperature environments.
- Raw Materials:
- PET chips with melting point range: 130℃-160℃.
- Chips features: Suitable for applications needing high temperature resistance and strong bonding, like construction and automotive industries.
6.3. High Melting Point Hot Melt Yarn (160℃ and above)
- Features:
- Offers stronger bonding strength and durability for demanding industrial applications.
- Suitable for high-temperature processing or environments.
- Raw Materials:
- PET chips with melting point range: 160℃ and above.
- Chips features: Maintains good physical properties under high temperatures, ideal for heavy-duty and long-lasting applications.
Using low melting point polyester chips for hot melt yarn has advantages in energy use and processing temperature. It is great for quickly bonding heat-sensitive materials. Medium and high melting point yarns excel in bonding strength and heat resistance, fitting different industrial needs. Choosing the right melting point depends on specific application requirements.
