BOPP Heat Seal Film Bread Pastry Packaging Oil Resistant 15-30μm 1. Basic Information For the packaging needs of bread, pastries, and other baked goods, this BOPP heat seal film combines high transparency with oil and mist resistance, clearly presenting product appearance while reducing grease penetration and fog formation. The base material is biaxially oriented polypropylene film with a heat seal layer on one side, suitable for high-speed automatic packaging lines. The film