(1) Aluminium plated film
A lot of food packaging is aluminized film, which has excellent the oxygen barrier and prevent oxidation, and aroma loss performance also has anti-UV, prevent the loss of vitamin performance, under very high vacuum conditions, aluminum at the temperature of 1500 degrees will vaporize, and then in the film has been treated on the surface of an extremely thin layer of the aluminum film, to ensure the adhesion of metal and film, The film must have a high wetting tension.
The selection of slip and anti-blocking masterbatch of the aluminized film opening requires:
a. Masterbatch carrier should be selected with high wetting tension as far as possible;
b.The movable opening slip and anti-blocking masterbatch must be disabled;
c. The anti-block and slip effect of the film must be achieved by adding anti-blocking masterbatch;
d. The size of the anti-blocking particle depends on the the thickness of the film surface;
e. The shape of the anti-blocking masterbatch must be round and soft, so as not to Pierce the aluminum plating layer