introduction to the coating of aluminum laminated film 3-CPP Layer

Usually the first layer on the side B of the aluminum layer is CPP(cast polypropylene). CPP layer has several distinctive advantages:

The manufacturing cost of CPP layer is lower, and it is friendly to other layers- so it is usually used as the bottom layer of aluminum laminated film. Besides these, the CPP layer is also transparent-which will not cause the surface of aluminum laminated film to be unclear or seemed to be damaged or dirty.

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