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The excellent machinability of TPU film is the reason why it is favored by the market. At present, it can be used:
1. The needle sewing
2. High-frequency machine welding
Also called thermal bonding, thermal pressure, high-cycle welding.
Working principle is similar to microwave heating, mainly depends on every second tens of thousands of times, millions of times, or even hundreds of millions of times the electromagnetic field changes on the object produced by the action, heat produced for bonding.
Factors affecting the bonding fastness are: high frequency output power, thermal bonding time, thermal bonding pressure, material melting index.
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