What are the functional characteristics of CPP aluminum plated film?
Release time:
2025-01-10
Before choosing to purchase CPP aluminum plated film, it is necessary to test the adhesion of the aluminum layer of CPP aluminum plated film and confirm the aluminum plated surface.
Before choosing to purchase CPP aluminum plated film, it is necessary to test the adhesion of the aluminum layer of CPP aluminum plated film and confirm the aluminum plated surface. In general, a practical method is to gently scratch the front and back of the film with your fingers. The surface of CPP aluminum plated film usually does not have obvious scratches, and the aluminum layer will have obvious scratches due to external friction.
The usual method for testing the adhesion strength of the aluminum coating on CPP aluminum film is tape testing, which involves attaching a three meter long tape of fifteen to twenty centimeters to the aluminum coating of CPP aluminum film and flattening it. Then, the tape is peeled off at a uniform speed, and the area of the aluminum coating peeled off is observed and estimated.
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