According to UCB, the combination of the BOPP and coating gives the film a good heat seal yet allows the bag to be opened without ripping.
UCB Films PLC: UCB Films PLC: Easy peel/seal film
UCB Films (Smyrna, GA) believes it has solved the problem of combining good sealability with easy-opening in a single packaging film. Propafilm(TM) RXP, a coated BOPP, can be used to package free-flowing confectionery, snacks and dried products.
Nov 30th, 1999