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What is CP Film?

Published in Cast Polypropylene Film 2 mins read

CP film stands for Cast Polypropylene film. It is a type of plastic film widely used in various packaging applications, particularly known for its specific properties derived from the cast film process using polypropylene resin.

Understanding CP Film

CP film is manufactured using polypropylene as the primary raw material. Unlike some other polypropylene films (like BOPP), CP film is produced using the cast extrusion process, which imparts certain characteristics to the film.

Key Properties of CP Film

Based on its composition and manufacturing process, CP film exhibits several desirable traits that make it suitable for packaging:

  • Moderate Elasticity: Provides flexibility, allowing it to conform well to different shapes during packaging processes.
  • Heat Sealability: Can be easily sealed using heat, which is crucial for creating secure packaging closures.
  • Excellent Machine Suitability: Runs smoothly on packaging machinery, leading to efficient production.
  • Superior Moistureproof Properties: Offers excellent protection against moisture, helping to preserve the contents of the package.
  • Wear-Resistant (Abrasion Resistant): Provides good resistance against scratching and scuffing, maintaining package appearance and integrity.

These properties make CP film a reliable material for demanding packaging tasks.

Common Applications

CP film is frequently used in the creation of laminated packaging. This involves combining CP film with other materials (like other plastic films, paper, or foil) to create multi-layer structures that offer enhanced barrier properties, strength, and printability.

Market Standing

Notably, CP film is recognized as a market leader in Japan, indicating its significant presence and popularity within that region's packaging industry.

In summary, CP film is a cast polypropylene film valued for its balanced properties, including flexibility, heat sealability, machine performance, and protective qualities against moisture and abrasion, making it a preferred choice for applications like laminated packaging.