BOPP film, whose full name is Biaxially Oriented Polypropylene Film. It is a polypropylene film produced through the biaxial stretching process and is one of the most widely used and largest-volume plastic packaging materials in the world today.
With its high transparency, high gloss, high stiffness, excellent moisture-proof properties and outstanding printing adaptability, it has established an unshakable dominant position in the soft packaging field over the past few decades. Although it has limitations such as poor heat sealing performance, through mature compounding and processing technologies, it remains one of the most economical and effective solutions to meet the packaging needs of the vast majority of daily goods.
The success of BOPP film stems from its unparalleled comprehensive performance.
High transparency: Crystal clear, able to perfectly display the product and enhance the attractiveness of the shelf.
High glossiness: Smooth surface, bright printing colors, and excellent visual effect.
High tensile strength and rigidity: The film is very stiff, suitable for high-speed packaging machines, running smoothly, and with good packaging form.
Excellent wear resistance and puncture resistance: Can effectively protect the contents.
Excellent water vapor barrier: It is an excellent moisture-proof material, effectively preventing the contents from getting damp or losing moisture.
Note: Its oxygen barrier performance is average, so for packaging that requires oxygen separation, it needs to be combined with other high-oxygen barrier materials (such as PVDC coating, aluminum foil, EVOH, etc.).
Non-toxic and odorless, meeting the hygiene standards for food and pharmaceutical packaging.
Good chemical stability, resistant to acids, alkalis, and oils.
After corona treatment, the surface tension is high, and it has excellent printing adaptability.
After coating with PVDC, acrylic, etc., its oxygen barrier performance can be significantly improved.
When combined with CPP, PE, VMCPP (aluminum-coated CPP), etc. through adhesives, it can generate high bonding strength, manufacturing various functional composite packaging materials.
Density is approximately 0.91 g/cm³, lower than PET, PA, etc. The film area per unit weight is larger, and it has economic benefits.
Product Name | BOPP film | |||
Testing Item | Unit | Value | Testing Method | |
Thickness | μm | 19 | GB6672-2001 | |
Tensile Strength | MD | Mpa | ≥120 | ASTM D882 |
TD | Mpa | ≥ 200 | ||
Elongation at break | MD | % | ≤ 180 | |
TD | % | ≤ 65 | ||
Heat shrinkage | MD | % | ≤ 4.5 | ASTM D1204 |
TD | % | ≤ 3.0 | ||
Haze | % | ≤ 2 | ASTM D1003 | |
Gloss 60° | % | ≥ 85 | ASTM D2457 | |
Wetting Tension | Treated | mN/cm | ≥38 | ASTM D2578 |
Untrested | mN/cm | ≤34 | ||
