The toughness function of vacuum aluminized film. Vacuum aluminum plating film is a kind of vacuum evaporation metal film. It is under high vacuum (above 10mba) conditions, with resistance, high frequency or electron beam heating to melt and vaporize aluminum. A process for attaching the surface of a film substrate to form a composite film
(1) Compared with aluminum foil, the amount of aluminum is greatly reduced, energy and materials are saved, and costs are reduced.
(2) It has excellent folding endurance and good toughness, and there are few pinholes and cracks, no crazing and cracking phenomenon, and the barrier to gas, water vapor, odor, light, etc. is improved.
(3) It has metallic luster, and the light reflectivity can reach 92%; and it can form a color film through coating treatment, and its decoration effect is unmatched by aluminum foil.
(4) Partial aluminizing can be performed by shielding or elution to obtain any pattern or transparent window, and the contents of the package can be seen.
(5) The aluminized layer has good conductivity. When packaging powder products, it will not contaminate the sealing part, ensuring the sealing performance of the packaging.
(6) It has good adaptability to post-processing such as printing and compounding.
