Cailong- Introduction Video 2
Vacuum metallized film refers to a new process for forming a composite film by vapor-depositing metal aluminum on the surface of a film substrate under vacuum. It is widely used to replace aluminum foil composite materials such as aluminum foil/plastic, aluminum foil/paper. The main types of vacuum metallized film are:
2, BOPP (biaxially oriented polypropylene) vacuum metallized film
Because BOPP film is divided into single-face corona treatment film, double-sided corona treatment film and heat-sealable film, the performance and use after aluminum plating are different. Because of their poor oxygen barrier properties, they cannot Do vacuum or retort packaging.
(1) BOPP vacuum metallized film treated with single-sided corona can only be used as decorative film, holographic printed anti-counterfeiting film, and surface material of composite film.
(2) Double-sided corona-treated BOPP vacuum-aluminized film can be printed on the surface layer or as a middle film material of the composite film.
(3) The heat-sealable BOPP vacuum metallizd film can only be used as the inner layer of the composite film. The BOPP vacuum aluminized film should be used in time, and should not be hoarded in a large amount. The general storage period should not exceed six months, otherwise the adhesion of the aluminized layer will decrease.
3, CPP (casting polypropylene) vacuum metallized film
Vacuum metallized CPP film can only be used as the inner film material of composite packaging, and can not be vacuum or retort packaging. The storage period of CPP vacuum aluminized film is 3~6 months. The over-period preservation corona treatment will disappear, and the adhesion of the aluminum layer will also be weakened. Pay special attention to moisture protection during storage.
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