50 μm natural color cast polypropylene film for food, medical can industrial packaging
50-micron natural color cast polypropylene (CPP) film can be used for a range of packaging applications, including:
1. Food packaging:
The film's high clarity, superior puncture resistance and excellent barrier properties make it ideal for packaging various food products
such as snacks, bakery products, and confectionery.
2. Stationery and gift wrap packaging:
50-micron natural color CPP film is also commonly used in gift wrap packaging applications, including for envelopes, portfolios,
and other stationery products.
3. Medical and pharmaceutical packaging:
CPP film's high tensile strength and superior barrier properties make it suitable for packaging medical products, such as wound dressings,
surgical drapes, and other medical devices.
4. Industrial packaging:
50-micron natural color CPP film can be used for wrapping, bundling, and protection of various industrial products during transportation
and storage.
5. Labeling:
CPP film's natural color makes it a popular choice for labeling, allowing for product information to be clearly visible on the packaging.
6. Lamination:
50-micron natural color CPP film can be used as a bonding layer in laminated structures with other films, paper, or aluminum foil,
adding strength and barrier properties.
Overall, 50-micron natural color CPP film is a versatile and lightweight packaging material that can be used in different industries for various packaging needs. Its superior puncture resistance, excellent barrier properties, and high clarity make it a popular choice for a range of applications.
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.
| Test Item | Unit | Range | Test Standard |
| Thickness | Avg. | μm | 50 | GN/T 6672 |
| Max. | ≤54 |
| Min. | ≥46 |
| Width | Avg. | mm | 1090 ±3 | GN/T 6673 |
| Tensile strength | MD | MPa | ≥20 | GN/T 1040.3 |
| TD | ≤15 |
| Elongation @ break | MD | % | ≤300 | GN/T 1040.3 |
| TD | ≤300 |
| Wetting tension | - | mM/m | ≥38 | GN/T 14216 |
Digital Brochure (2023).pdf
Product Tags:
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50 micron CPP film,transparent, good physical property and chemical stability, good printablity, for packaging, labeling Images
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