The four core advantages of TPU film adapt to the needs of automobile ventilation bags in all scenarios
1. Anti-aging “longevity gene”: 8-year service life far exceeds industry standards
Automotive interior parts usually require a 3-5 year warranty, and the aging resistance of TPU film (especially polyether type) is called the "King of Durability":
High and low temperature resistance: Stable operation in a wide temperature range of -40℃~120℃, no brittleness at low temperatures and no softening at high temperatures. After 50 high and low temperature cycles (-40℃→80℃), the ventilation efficiency only drops by 5%;
Anti-fatigue: The dynamic fatigue life is more than 100,000 times. Calculated based on ventilation for 1 hour per day and 10 cycles per minute, the service life is more than 8 years;
Hydrolysis resistance: Polyether TPU can resist the humid environment of the cabin and avoid embrittlement and cracking caused by hydrolysis after long-term use. This is a core advantage that polyester TPU cannot match PVC.
2. Air tightness “Full score performance”: the key guarantee for ventilation efficiency
The core function of the ventilation bag is "efficient air guidance", and the air tightness directly determines the ventilation effect - the TPU film itself is a low-breathing material. With the high-frequency heat sealing process, the weld strength can reach more than 85% of the base material itself. It can achieve IPX5 air tightness to ensure that the airflow does not leak. According to actual measurements, it can reduce the seat surface temperature by 6-8°C, which is far better than PVC ventilation bags (which are prone to air leakage due to aging of the welds, and the ventilation efficiency drops by more than 30% after 1 year).
3. Environmental compliance “zero risk”: easily pass the OEM audit
The automotive industry has increasingly stringent environmental requirements for interior parts, and TPU films are born with “environmental protection genes”:
No harmful substances: does not contain phthalates, halogens and other banned substances, and has passed ROHS and REACH certification;
Low odor and low VOCs: the odor level is ≤3 (in line with PV3900 standards), VOCs emissions meet the standards, and the odor in the car is avoided;
Recyclable: The thermoplastic properties allow it to be recycled and reused, in line with the "green manufacturing" trend in the automotive industry.
4. Processing adaptation “high flexibility”: meeting diversified production needs
TPU film has extremely strong processing compatibility and is perfectly adapted to the core processes of ventilation bag production:
High-frequency heat sealing: easy to weld, the welds are smooth and firm, there is no risk of welding or burn-through, and the production efficiency is 40% higher than that of rubber materials;
Customization: The thickness can be accurately controlled between 0.1-0.3mm (taking into account ventilation efficiency and strength), supports black, beige and other color customization, and can also prefabricate 0.01-0.1mm micropores to directly match the 3D mesh composite process;
Anti-adhesion: The surface has been specially treated to prevent wrinkles and adhesion during storage and cutting, reducing production losses.
