PE, POF and PVC Heat Shrink Film Uses and Inspection Specifications

There are three kinds of common shrink films:

POF shrink film,this kind of shrink film is made of pressed rock and has a tube film, which can also be made into bags. Conventional color: bright. Printing can be done according to the demand. The products are mainly used in the packaging of drugs, cosmetics, sterilized tableware and so on. Test specification: whether it is open when shrinking, whether the printing is out of color and its brightness.

PE shrink film, this material can be made into shrinkage and non-shrinkage, mainly to be used in the package of heavy objects, optical cables, tubes, coke packages and so on basically use it. Out of most of the tube material, can also be made into bags. Test specification is also to see the brightness, purity, film is not uniform.

PVC shrink film, this heat shrink film is blown from, usually out of the roll material, can also be made into bags according to customer demand. Colors commonly used are light blue and this color. Thickness is usually in 5 silk. pvc heat shrink film is currently the most widely used type of plastic film. It is cost-effective and does not require high heat source. Mainly used in doors and windows, aluminum, building materials, home appliances and other packaging. The first thing to look at if you test: brightness, gloss, whether there is a knot in the film, the film is not uniform.