What are the different types of laminating films available and what are the advantages and disadvantages of each?
There are three basic types of films utilized in graphic arts laminating, which are available in a variety of thicknesses and finishes. All have their advantages depending on the application. Polypropylene (OPP) Polypropylene provides the highest gloss levels of the three main types of films available. However, the user trades high-gloss for durability. OPP is the softest of the three clear base films, creating a greater potential for the finished piece to scuff or scratch. Polypropylene is the least expensive film type, and it also runs very easily through the laminating process. It bursts well and processes nicely for diecutting and other binding operations. It also is receptive to certain varnishes and coatings for other post lamination finishing operations. It is most commonly used on book covers and jackets. Polyester (PET) Polyester is the most popular type of film in the marketplace. It combines durability with reasonable cost, although it is not the least expensive film. Polyes
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