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|A brief introduction to BOPP and CPP films

A brief introduction to BOPP and CPP films

Oct 19, 2023


CPP(Cast Polypropylene)and BOPP(Biaxially Oriented Polypropylene) are two common types of polypropylene film materials that have some differences in their manufacturing processes and performance.


1. Manufacturing process


CPP: CPP film is produced by extruding molten polypropylene through an extrusion machine, followed by cooling and solidification. The manufacturing process is relatively simple.


BOPP: BOPP film is produced by first extruding molten polypropylene into a film through an extrusion machine and then subjecting it to stretching and orientation processes in two directions to achieve better stretchability and transparency.


2. Characteristics and Applications:


CPP: CPP film has high transparency, flexibility, and heat resistance. It is commonly used for packaging food, pharmaceuticals, and industrial products. It can also be used for making bags, folders, and other items.


BOPP: BOPP film has high tensile strength, transparency, and rigidity. It is widely used in packaging, labels, etc.


In summary, CPP film is suitable for applications that require flexibility and heat resistance, while BOPP film is suitable for applications that require good stretchability and rigidity. The choice between the two depends on the specific requirements and application scenarios of the product.tapes, printing, and composite materials. It is suitable for applications that require high strength and print quality.

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