During the non-metallic coating, the higher gasification temperature and evaporation energy of the evaporation raw materials lead to the higher temperature of the evaporation zone during the evaporation process.
Aluminized paper can be divided into direct evaporation method and transfer method according to its production process: direct method is the method of directly placing the paper in a vacuum aluminizing machine for aluminizing.
With the development of vacuum evaporation technology and post-processing technology, the varieties and uses of vacuum aluminized films are expanding, and they are widely used in packaging, decoration and other fields.
Vacuum aluminized film is a kind of packaging material with low price, beautiful appearance, excellent performance and strong practicability because it has the characteristics of both plastic film and metal.
Vacuum evaporation of metal thin film is a process of forming composite thin film by melting and vaporizing metal under high vacuum (above 10-4mba) by resistance, high frequency or electron beam heating, and adhering to the surface of thin film substrate.