Product Category： Thin film  

BOPP CPP

BOPP (Biaxially Oriented Polypropylene Film) It is produced through biaxial stretching (longitudinal + transverse). It exhibits excellent transparency, stiffness and barrier properties, with a temperature resistance range of -20~120℃. It is commonly used for food packaging (such as potato chip bags, biscuit bags), adhesive tape base films, and printed composite films. CPP (Cast Polypropylene Film) It is formed by casting and cooling molten resin. It has good flexibility and heat-sealing performance, with a temperature resistance range of -10~120℃. It is suitable for use as a heat-sealing layer, daily necessities packaging, and low-temperature frozen food packaging (e.g., quick-frozen dumpling bags). Supplementary Notes Both films belong to the category of polypropylene (PP) plastic films and are widely used materials in the packaging industry. Their core difference lies in the production process (biaxial stretching vs. cast cooling), which in turn leads to different performance focuses (BOPP emphasizes stiffness and transparency, while CPP emphasizes flexibility and heat-sealing). The temperature values in the temperature resistance range are all in Celsius (℃), corresponding to the conventional use environments in daily industrial production and daily life. Exceeding this range may cause damage to the film's performance (such as embrittlement, deformation).