Cast polypropylene film (CPP) is a film made by casting unoriented production process, in line with GB/T27740-2011 National Quality Supervision, Inspection and Quarantine Standard, because of its large production capacity, good thickness uniformity and transparency. High in size, stable in size, and good in heat sealing performance, it is widely used in the field of plastic composite flexible packaging. At the same time, the casting equipment can also produce cooking grade CPP film, CPP film for aluminum plating, special CPP film, and other products, which are widely used in packaging, building materials, food, electronic components, pesticides and other fields. At present, the domestically applied CPP varieties are relatively mature:

1. Composite film (CCP) can be directly combined with BOPP, BOPET and other films for packaging fast food and tea.

2. Aluminized film (MCP) CPP film has good performance of blocking water vapor transmission, but the performance of blocking oxygen transmission is poor. After high vacuum evaporation of aluminum, the oxygen barrier performance of MCP film can be greatly improved. . Aluminized CPP film products have excellent properties such as excellent light-shielding, decorative and barrier properties, and have good adaptability in post-processing such as printing and compounding, which can meet general heat resistance, chemical resistance and wear resistance. Oxygen, moisture and other requirements.

3. The film for cooking is compounded with a barrier film such as PA or aluminum foil, and is used for packaging products requiring high temperature retort sterilization, and is often a food containing oil or soup. The semi-cooked film (SCP) can be subjected to cooking at 121 ° C for 40 minutes, and the high temperature cooking film (RCP) can be subjected to high temperature sterilization at 135 ° C or higher.

4. The CPP film for packaging film packaging can be used for packaging of food, clothing, sanitary napkins, flowers, etc., respectively. After printing, the film has high transparency, antistatic and customer-specified friction coefficient.

5, CPP matt film

6, high transparent super soft film

7, cold resistant film

8. Other special function films, such as NCP solvent-resistant barrier film (pesticide film), CPP anti-static film, and CPP anti-fog film which is currently in high demand on the international market.

At present, new products of cast polypropylene film (CPP) are mainly concentrated in ultra-low temperature heat sealing film, high temperature cooking film and the like. Some special-purpose films such as paper, antibacterial film, micro-air permeable film, and biodegradable film are also being developed and applied. Due to the rapid growth of packaging materials such as BOPP, BOPET and BOPA, the market demand for CPP materials has also increased. The heat resistance of CPP products also provides potential for the development of products in the field of retort packaging.