Biaxially oriented polypropylene (BOPP) films are widely used for the packaging of biscuits, confectionary, snacks, cereals, salads & fresh products, overwraps for tobacco and perfumes, petcare etc. which are very sensitive to humidity and oxygen. The sealability of BOPP films is obtained by coextrusion of different types of polypropylene. Sometimes, the sealing and the barrier properties are not sufficient to conveniently close the package and to give good protection to the food.
For these reasons, most of the BOPP film producers have developed Diofan® High Barrier Polymer coated structures which give good sealing properties as well as enhanced water vapor or gas barrier. BOPP films coated with Diofan® on either one or both sides can be found in a variety of packaging applications.
Diofan® High Barrier Polymer Dispersions