The working principle of PVC decorative film is to soften the PVC film by heating it and use vacuum forming technology to fit it tightly to the surface of the substrate. The specific process is as follows:
Heating and softening: First, the PVC decorative film is heated to a softened state in a heating device, making it easy to shape and fit.
Vacuum forming: The heated PVC film is placed on the substrate, and the air between the film and the substrate is extracted by a vacuum pump to form a vacuum state.
Fitting and fixing: In a vacuum state, the PVC film relies on atmospheric pressure to fit tightly to the surface of the substrate to form a seamless connection.
Cooling and curing: After the bonding is completed, the PVC film is cooled and cured on the substrate to ensure a long-lasting and stable decorative effect.
