From Food to 3C Products: Practical Application Cases of BOPP Heat-S Sealable Film Across Industries
Time：
2025-04-27 16:14
BOPP (Biaxially Oriented Polypropylene) heat-sealable film is a functional polypropylene film produced via biaxial orientation processing. With its excellent heat-sealability, transparency, and mechanical strength, it holds a pivotal position in the packaging industry. Its core applications span three primary scenarios:
In food packaging, it serves as the material of choice for instant noodles, frozen foods, and snack packaging bags. For example, a renowned instant noodle brand uses BOPP heat-sealable film for bowl noodle lids, achieving precise sealing within 3 seconds via high-speed heat-sealing equipment. This not only effectively prevents oil-fried noodles from absorbing moisture and deteriorating but also showcases ingredients vividly through its high light transmittance (up to 92%). In the frozen food sector, multiple chain dumpling brands employ composite packaging bags with BOPP heat-sealable layers, ensuring that heat-sealed edges remain tightly sealed at -18°C low temperatures to avoid dumpling sticking and damage.
In pharmaceutical packaging, the film is used as the inner layer of aluminum-plastic composite films for tablets and powders, achieving sterile packaging through heat-sealing. A large domestic pharmaceutical enterprise uses BOPP heat-sealable film as the inner layer for independent sachets of Ganmaoling Granules. Paired with an aluminum foil outer layer, this combination forms a moisture-proof barrier. Tests show that after 30 days in 80% humidity, the granules remain loose. In high-end pharmaceutical applications, BOPP heat-sealable materials are also used in aluminum-plastic combination caps for injection vials, ensuring that the sealing layer does not melt or deform during sterilization and complies with pharmaceutical packaging microbiological limit standards.
In daily necessities and industrial applications, it is widely used in detergent packaging bags, cosmetic soft packaging, and dust-proof/moisture-proof packaging for textiles and electronic products. An international daily chemical brand uses 3-layer co-extruded BOPP heat-sealable film for laundry detergent packaging, expanding the heat-sealing temperature range to 120–180°C to adapt to different production line equipment, with a single production line capable of producing up to 500,000 bags daily. In textile packaging, fast-fashion brand ZARA widely uses BOPP films with heat-sealable edges for garment dust bags, allowing consumers to re-seal the bags via pre-installed heat-seal strips after opening, enhancing reusability. In the 3C products sector, Huawei uses anti-static BOPP heat-sealable films for inner packaging of mobile phone accessories, enabling rapid heat-sealing of data cables and chargers while preventing potential electrostatic damage to precision components.
With its comprehensive advantages of low cost and high performance, BOPP heat-sealable film is continuously upgrading toward high barrier properties and environmental degradability, further expanding its application in high-end packaging markets.
BOPP
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