Typical cases of airbag production using TPU film technology

Typical cases of airbag production using TPU film technology

The automobile side window air curtain is one of the most typical cases of TPU film technology application. Traditional air curtains use nylon fabric coated with neoprene, which has problems such as heavy weight, high thickness, and insufficient aging resistance. After switching to the TPU film compounding process, the thermoplastic polyurethane raw material is first made into a film with uniform thickness through casting or blowing and extrusion, and then hot-pressed and compounded with the base fabric. Finally, the film is cut and sealed into a closed air chamber structure through high-frequency welding or hot-melt welding technology. The air curtain produced by this process can reduce weight by more than 30%, has excellent air-tightness performance, and the materials can be recycled, which is in line with the development trend of automobile lightweight and environmental protection.

Another typical case is logistics buffer air bags. In the field of e-commerce transportation, a large number of inflatable packaging made of TPU films are used. Films with high transparency and high toughness are produced through the film blowing process. They are heat-sealed and processed into continuous air columns or air pillow structures. After inflating, they play a buffering and protective role for precision instruments, glass products and electronic products. The TPU film is wear-resistant and puncture-resistant. It can still maintain softness in environments ranging from minus 20 degrees Celsius to 80 degrees Celsius, and can adapt to different transportation conditions.

In addition, spa airbags in the medical rehabilitation field and inflatable protective gear in the sports protection field also commonly use the TPU film welding process, which fully reflects the material's comprehensive advantages in elastic recovery, hydrolysis resistance and processing convenience, and has become the mainstream technology route in the airbag manufacturing industry.