BOPP and BOPP Film Testing
Tracy Bao asked: BOPP testing is very important for BOPP quality control. BOPP(Biaxially Oriented Polypropylene) cigarette film, with is excellent moisture barrier property, optical performances, heat seal property as well as high heat seal strength, reasonable shrinkage rate and good stiffness, is the first choice for cigarette film. The testing items of BOPP are the… Read More »