Q. What is Polypropylenes?
Polypropylenes (PP) (cast PP, Bi-axially oriented PP (BOPP), pearlized PP): Polypropylene is often termed a breathable film. This film is not a good gas barrier, but is used mainly for moisture barrier properties and for temperature resistance in retort or pasteurized packaging. The material has good clarity, high gloss and excellent flexcrack resistance. Packaging material made of polypropylene are used for bottles, jars, crisp packets, biscuit wrappers and boil-in-bag films among many other applications.