How to produce TPU film production line

There are two commonly used methods for producing TPU hot melt adhesive film. The first method is to sandwich the TPU melt with two layers of release paper after it comes out of the extrusion die, and extrude it into TPU hot melt adhesive film through the forming roller. The release paper plays a protective role. This method wastes a layer of release paper; the second method is to use a layer of release paper, and the forming roller on the side of the TPU melt is plated with Teflon. However, during production, the Teflon on the forming roller occasionally adheres to the TPU melt, causing defects such as bubbles between the release paper and the TPU hot melt adhesive film, resulting in an increase in the defect rate. In addition, the Teflon will gradually disappear due to wear after a period of production. For this reason, Teflon must be plated again, which is expensive. Therefore, the first method is generally chosen for production.

The above is an introduction to how to produce TPU hot melt adhesive film - TPU adhesive film production line. You don't need to understand it so clearly. When choosing, you only need to conduct an on-site inspection to see the scale of the manufacturer and the quality of the finished products, whether there are bubbles, and whether the thickness is uniform or not.

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