80 μM Blue Cast Polypropylene Film For Food, Medical Can Industrial Packaging

Product Specification

80-micron translucent blue or opaque blue cast polypropylene (CPP) film is a strong packaging material that is commonly used for various

applications that require high durability and barrier properties.

Some of the main uses of 80-micron translucent blue or opaque blue CPP film are:

1. Heavy-duty food packaging:

    80-micron translucent blue or opaque blue CPP film is ideal for packaging heavy and bulky food items such as meats, cheese, and frozen

    foods. Its high puncture resistance, excellent sealing properties, and barrier properties make it an excellent choice for protecting food items

    during storage and transportation.

2. Industrial packaging:

    The film is often used to package industrial products that require strong and durable packaging such as hardware, tools, and automotive parts.

    Its strength and puncture resistance ensure that the products are protected during transportation.

3. Medical packaging:

    80-micron translucent blue or opaque blue CPP film is used for packaging medical devices and supplies that require high barrier properties

    to maintain their sterility and prevent contamination.

4. Apparel packaging:

    The film is used for packaging clothing and other textile products, particularly those that require high durability packaging. Its strength, durability,

    and puncture resistance make it an excellent choice for protecting textile products during transportation.

5. Stationery and office supply packaging:

    The film is used for packaging stationery, office supplies, and other miscellaneous items. Its strength and puncture resistance make it an 

    excellent choice for protecting these products during transportation.

6. Home and garden packaging:

    The film is used for packaging home and garden products such as fertilizers, potting soil, and gardening tools. Its strength and barrier

    properties ensure that these products are protected from external factors during transportation and storage.

Overall, 80-micron translucent blue or opaque blue CPP film is a strong and durable packaging material that is ideal for various applications

that require high puncture and barrier resistance. It is an excellent option for packaging products that require heavy-duty and durable packaging,

particularly in the food and industrial packaging industries.

 
The significant feature of cast polypropylene film is its excellent transparency, high gloss, and good moisture barriers making it suitable for
packaging applications where product visibility is important. It is also highly durable, flexible, and has excellent sealing properties, making it
ideal for applications requiring heat sealing. Furthermore, CPP film is highly resistant to punctures, tearing, and abrasion, which makes it a
reliable option for packaging applications that face rough handling during transportation.
Additionally, CPP film has good stiffness and dimensional stability, which means it is unlikely to shrink or stretch during processing or use,
which can help to ensure consistent packaging performance. It has also good printability and great clarity of graphics, which makes it ideal
for using visual cues as branding elements on packaging.
 
The process for producing cast polypropylene (CPP) film involves:
 
1. Polymerization:
    Propylene monomers are polymerized under pressure and high temperature to produce polypropylene resin pellets.
 
2. Extrusion:
    The polypropylene resin pellets are melted and extruded through a flat die to form a thin, continuous sheet.
3. Orientation:
    The extruded sheet is stretched across the machine direction (MD) and transverse direction (TD) to improve the mechanical
    properties and clarity of the film.
 
4. Cooling:
    The film is cooled down using a cooling roll and stored on a take-up roll.
 
5. Finishing:
    The film is treated with corona discharge or other surface treatments to improve printing quality and adhesion.
 
Now, coming to the advantages of CPP film over Biaxially Oriented Polypropylene (BOPP) film:
 
1. Improved sealing properties:
    CPP film has better sealing properties due to its higher seal strength, which makes it ideal for use in food packaging applications.
 
2. Enhanced clarity:
    CPP film has better clarity and gloss than BOPP film, which makes it more attractive for use in packaging applications where product
    visibility is essential.
 
3. Better hot tack properties:
    CPP film has better hot tack properties, which allows it to be used in high-speed packaging machines where quick sealing is required.
 
4. Increased heat resistance:
    CPP films have greater heat resistance than BOPP films, making them better suited for use in hot-fill and retort packaging applications
    where high temperatures are required.
 
5. Higher puncture resistance:
    CPP films have higher puncture resistance than BOPP films, making them more durable and resistant to damage during transportation
    and storage.
 
Overall, CPP film has several advantages over BOPP film, making it a popular choice for a wide range of packaging applications. CPP films' improved sealing properties, clarity, heat resistance, and puncture resistance make them ideal for use in food packaging, as well as in industrial and agricultural packaging applications. 

There are various ways to improve the mechanical properties of cast polypropylene (CPP) film and to enhance its functionality.

Here are some of them:

1. Additives:

    Adding certain additives to the CPP film can significantly improve its performance properties. For example, adding slip agents to CPP film

    can reduce friction and enhance its slip properties. Similarly, adding anti-block agents can help to reduce blocking and improve film clarity.

2. Blending:

    Mixing polypropylene with other polymers or fillers can improve film properties such as puncture resistance, tear strength, and stiffness.

    For example, blending polypropylene with polyethylene or thermoplastic elastomers (TPE) can provide a balance of stiffness and flexibility.

3. Coating or laminating:

    Coating or laminating the CPP film with other materials can help to enhance its barrier properties or surface properties such as printability.

    For example, coating the film with metal or oxide layers can improve its barrier properties, while laminating it with another polymer can improve

    its printability or add other properties.

4. Nano-composite materials:

    Incorporating high-performance nano-composite materials into CPP films can improve their mechanical properties and enhance their

    functionality. For example, adding graphene or carbon nanotubes to CPP film can provide high tensile strength and conductivity.

5. Film orientation:

    Stretched or oriented CPP films are stronger and more resistant to punctures and tearing than non-stretched films.

    Orientation can be done mechanically, such as by stretching the film in two directions or by adding a biaxial stretching process, or by adding

    some treatments like Corona treatment.

Overall, the methods to increase the mechanical properties or other functions of CPP films involve the addition of additives, blending, coating, laminating, and orientation. Tailoring the film's formulation and processing conditions can achieve the desired properties and functionality in the CPP film.