CPP Films

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Cast polypropylene (CPP) films are a type of flexible packaging material made from polypropylene polymers. These films are produced using the cast film extrusion process, where melted polypropylene resin is extruded through a flat die and then cast onto a chill roll to form a thin, continuous film. CPP films offer several advantages due to the unique properties of polypropylene polymers:
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Characteristics

  1. Clarity: CPP films typically have excellent optical clarity, making them ideal for applications where product visibility is important, such as food packaging.

  2. Flexibility: These films are highly flexible and conformable, allowing them to be easily formed and wrapped around products of varying shapes and sizes.

  3. Sealability: CPP films can be heat-sealed to create strong and secure seals, making them suitable for packaging applications that require hermetic sealing to maintain product freshness and integrity.

  4. Heat Resistance: Polypropylene has a relatively high melting point, which gives CPP films good heat resistance. This property makes them suitable for applications where heat sealing or high-temperature processing is involved.

    1. 5. Moisture Barrier: CPP films have inherent moisture barrier properties, helping to protect packaged products from moisture ingress and extending their shelf life.
    2. 6. Chemical Resistance: Polypropylene is resistant to many chemicals, oils, and greases, making CPP films suitable for packaging applications involving contact with various substances.
    3. 7. Printability: CPP films can be easily printed using various printing techniques, allowing for attractive graphics and branding on packaging materials.
    4. 8. Tear Resistance: CPP films exhibit good tear resistance, providing durability and toughness to packaged products during handling and transportation.
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Technical Data Sheet

PROPERTIES TEST METHOD UNIT CPH1-LSIMD
PHYSICAL
Thickness ASTM D374 Micron 15 18
Yield JPFTM m2/kg 73.26 61.05
Grammage JPFTM gm/m2 13.65 16.38
MECHANICAL
Tensile Strength (MD) Min (TD) Min ASTM D882 ASTM D882 kg/cm2 kg/cm2 450 – 650 200 – 300 450 – 650 200 – 300
Elongation (MD) (TD) ASTM D882                                     % ASTM D882                                     % 450 – 600 550 – 650 450 – 600 550 – 650
Coefficient of Friction(Metal to Film) Max Dy (Max) ASTM D1894 kinetic 0.3 -0.35 0.3 -0.35
THERMAL
Seal Initiation temperature JPFTM °C 95 95
Seal strength JPFTM gms/25mm 1000 1100
SURFACE
Release force(Tesa tape -7475, @300 mm/min, 180° peeling) FINAT 10 gm/inch 2.2 2.2
BARRIER
Water Vapour Transmission Rate (38°C & 90% RH) Max ASTM E398 g/m2/day < 1.2 < 1.2
Oxygen Gas Transmission Rate (23°C & 0% RH) Max ASTM D3985 cc/m2/day < 150 < 150

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Raghav Polymers, Srinagar Colony, Hyderabad, Telangana, India

Phone : +91 99498 12900, +91 91601 80000

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