Most Thermoforming Thermoforming Films Are Produced By Casting Or Down-blowing W

The polymer crystal size has a certain influence on the effect of thermoforming. Generally speaking, the smaller the crystallinity, the better the stretch formability. Therefore, most thermoforming Thermoforming Films are produced by casting or down-blowing water cooling processes. Both of these two production processes have the ability of rapid quenching, so the thermoforming film produced is less crystalline, which is conducive to hot forming and stretching. In comparison, casting and down-blowing water cooling have their own advantages and disadvantages. The casting output is large, the width is large, and the film thickness is evenly distributed, but the investment is relatively large. Down-blowing water-cooling has faster cooling, high transparency, softer thermoforming film, less investment, but smaller width and lower output. Therefore, it is necessary to determine the production process suitable for oneself according to the situation of the end product and the order.

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