What are the advantages and disadvantages of OPP and CPP membranes? What kind of bags are they used for?
(composite film) clothing, knitwear and flower packaging bags; documents and photo albums; films; food packaging.
CPP films have the characteristics of good transparency, high gloss, good stiffness, good moisture resistance, good heat resistance, and easy to heat sealing. CPP film is printed and bag made
(aluminized film) a metallized film that blocks packaging and decoration. After vacuum aluminizing, it can be combined with BOPP, BOPA and other base materials, and used for high-grade packaging of tea, fried crisp foods, biscuits and so on.
(feature film, also called special film) potential uses include: food packaging, candy packaging (twisted film), drug packaging (infusion bag), on the album, folders and files and other fields instead of PVC, synthetic paper, adhesive tape, name card holder, ring folder and composite bag stand.
(steaming film) CPP, good heat resistance. Because the softening point of PP is about 140 DEG C, this kind of film can be used in hot filling, retort bags, aseptic packaging and other fields. With acid, alkali, grease resistance, making it bread products, packaging or laminated materials and other fields of choice. Its contact with food safety, demonstration of good performance, will not affect the flavor of the built-in food, and can choose different grades of resin to obtain the desired characteristics.
