CPP film , cast polypropylene film cast polypropylene, also known as unstretched polypropylene film, can be divided into general CPP (General CPP, referred to as GCPP) film, aluminum plated CPP (Metalize CPP, referred to as MCPP) film according to different purposes. And cooking grade CPP (Retort CPP, referred to as RCPP) film.
CPP is a polypropylene (PP) film produced by a cast extrusion process in the plastics industry. This type of film is a non-oriented film unlike BOPP (bidirectional polypropylene) film. Strictly speaking, the CPP film has only a certain orientation in the machine direction (MD) direction, mainly due to the nature of the process. Excellent clarity and finish are formed on the film by rapid cooling on the chill roll.
The main characteristics of CPP film:
- Compared with other films such as LLDPE, LDPE, HDPE, PET, PVG, etc., the cost is lower and the output is higher.
- Higher stiffness than PE film.
- Excellent moisture and odor barrier properties.
- Multi-functional, can be used as a base film for composite materials.
- Metallization is possible.
- As a food and commodity packaging and packaging, with excellent demonstration, the product can still be clearly visible under the packaging.
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