Ultrasonic Welding Machine – Application for PE-Coated Paper Packaging

What is an Ultrasonic Welding Machine?

An ultrasonic welding machine utilizes ultrasonic waves (typically at ~20 kHz) to generate vibration and localized friction between two layers of material (plastic, PE-coated paper…), thereby melting and bonding them. Key advantages include:

  • No external heat source required (heats only the welding zone).
  • Fast, Precise, Clean.
  • Aesthetic, high-strength welds.

Why Use It for PE-Coated Paper Packaging?

Paper packaging is often coated with PE to enhance waterproofing and product protection. However, bonding this coated paper with glue can lead to waste and plastic pollution. Ultrasonic welding helps to:

  1. Securely bond PE-coated paper without adhesives.
  2. Save time – welding takes only 0.1–0.2 seconds.
  3. Reduce defects, preventing air and water leaks.

Highlights from the VietSonic Video

  • Demonstrates the actual process of welding PE-coated paper packaging using the VietSonic ultrasonic welding machine.
  • How to select the appropriate frequency, pressure, and horn type for the material.
  • Produces beautiful, tight welds without tearing the PE film.
  • Advantages: Fast, Clean, Cost-Optimized, and Eco-Friendly.

Benefits of Applying Ultrasonic Welding for PE Packaging

Criteria Ultrasonic Welding Machine Traditional Methods
Welding Time ~0.1–0.2 s Several seconds – minutes
Environment No chemical glue, clean Chemical glue, impurities
Weld Durability High, hermetic, no PE layer tear Prone to opening, cracking
Long-term Cost Low (no glue purchase, simple maintenance) High (glue costs, labor-intensive)
Eco-friendliness Easier to recycle, non-polluting Generates plastic waste, glue pollution

✅ Conclusion

The VietSonic ultrasonic welding machine is an Effective – Clean – Durable – Economical solution for the PE-coated paper packaging industry. Replacing manual glue welding technology helps reduce costs, increase productivity, and meet the green packaging trend. Click to watch the video to see the actual efficiency VietSonic provides!

If you need technical advice, a quotation, or to order an ultrasonic welding machine suitable for your PE paper packaging needs, please contact VietSonic for in-depth support.