I. Hot Melt Adhesive Film: Definition and Types

A Hot Melt Adhesive Film is a sheet-like adhesive material, supplied with or without release liner, suitable for continuous or intermittent manufacturing processes. Key types include EVA, PA, PES, PO, and TPU films, each designed for specific bonding requirements.

II. Core Production Equipment: Hot melt adhesive coating machines

The production and application of these films rely heavily on Hot Melt Adhesive Coating Machines. These machines utilize precise electronic temperature control, hot air drying, and stepless speed regulation to evenly coat substrates (like release paper or fabric) with molten adhesive, forming a film of consistent thickness. They automate the entire process—coating, drying, slitting, and rewinding—ensuring the film's superior consistency and bonding performance.

III. Detailed Parameters and Applications by Film Type

1. EVA Film

• Substrate: Single-sided silicone release paper

• Specification: Thickness 0.04-0.25mm

• Parameters: Heat-seal temperature 110-130℃, time 6-10s

• Application: Lamination of PET, leather, non-woven fabric, wood, and paper.

2. PA Film

• Substrate: Single-sided silicone release paper

• Specification: Thickness 0.05-0.25mm

• Parameters: Heat-seal temperature 150-180℃, time 12-20s

• Application: Backing for embroidered badges and labels.

3. PES Film

• Substrate: Single-sided silicone release paper

• Specification: Thickness 0.05-0.25mm

• Parameters: Heat-seal temperature 140-160℃, time 12-18s

• Application: Conductive cloth, embroidered badges, flocking transfer, textile lamination, and PVC high-frequency welding.

4. PO Film

• Substrate: Single-sided silicone release paper

• Specification: Thickness 0.04-0.25mm

• Parameters: Heat-seal temperature 130-160℃

• Application: Bonding metals like aluminum.

5. TPU Film

• Substrate: Single-sided silicone release paper

• Specification: Thickness 0.05-0.25mm

• Parameters: Heat-seal temperature 120-150℃, time 10-20s, curing ~4min

• Application: Lamination of nylon, polyester, cotton, leather, and various elastic fabrics; widely used in footwear and apparel for its high elasticity and abrasion resistance.

IV. Key Product Characteristics

1. Excellent Consistency: Coating machines ensure a uniform adhesive thickness.

2. Eco-friendly & Processable: Solvent-free and easy to process automatically via coating machines.

3. Versatile Adhesion: Effective on metals, plastics, textiles, ceramics, and more.

4. Flexible Specifications: Typical thickness 0.1-0.203mm, translucent/amber color. Can be die-cut into precise shapes for automated application.

V. Summary of Industry Applications

The combination of hot melt adhesive films and coating machines provides solutions for diverse industries:

• Electronics: Mobile phone window frames, metal casing adhesion, smart card/ chip passport lamination.

• Automotive: Interior trim, headlight assembly.

• Textile, Apparel & Footwear: Fabric lamination, embroidered badges, elastic bandages.

• Packaging & Printing: Premium packaging, bookbinding.

• Medical & Hygiene: Medical dressings, diapers, sanitary napkins.