The BOPP Both Sides Corona Treated Heat Sealable Film is manufactured from high-purity polypropylene resin using a precision biaxial orientation process. Both sides undergo intensive corona treatment, while the surface layer incorporates high-performance heat-sealing masterbatch, providing an ideal balance of excellent processing performance and reliable sealing strength. Whether used as an outer-layer printing substrate or an inner-layer laminating substrate, it delivers excellent ink adhesion, initial lamination bond strength, and heat-seal strength. It effectively addresses common flexible packaging issues such as ink delamination, layer separation, and air leakage, making it a preferred material for upgrading food, daily chemical, and pharmaceutical packaging.
Made from high-purity polypropylene resin, a precision biaxial orientation process, and a multilayer functional design. Strict control is applied to crystal points, fisheyes, and surface deposits to ensure uniform and durable corona treatment performance on both sides of the film.
An intelligent online thickness measurement system is used for precise thickness control, with thickness deviation strictly maintained within ±0.5 μm. This helps improve consistency during high-speed printing registration and lamination processing.
The film thickness, double-sided corona treatment intensity, and heat-sealing temperature can be adjusted according to printing processes, lamination structures, and packaging machine parameters, providing tailored BOPP Both Sides Corona Treated Heat Sealable Film solutions for different production requirements.
According to the available information, the company has passed ISO 9001 Quality Management System certification and can provide SGS test reports and relevant quality documentation.
Before placing a bulk order, customers are recommended to conduct sample testing based on their actual ink system, laminating adhesive, packaging structure, heat-sealing equipment, and production speed. For applications involving food contact, pharmaceutical packaging, or other specific compliance requirements, the corresponding test reports and compliance documents should be used as the final basis for procurement.
The film thickness, double-sided corona treatment intensity, and heat-sealing temperature can be flexibly adjusted according to customers' printing processes, lamination structures, and packaging equipment parameters. Both single-sided heat-sealable and double-sided heat-sealable structures are available to meet the specific requirements of different packaging production lines.
For delivery, the standard MOQ is 20,000 kg, with a regular lead time of approximately 15–20 days after order confirmation. When safety stock is available for standard specifications, the lead time can be shortened to approximately 7–10 days. The film is supplied with suspended shafts or paper tube cores and packed with moisture-proof film, stretch film, and pallets, making it suitable for long-distance sea and land transportation. Payment terms are T/T with 30% deposit and the balance paid before shipment.
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Item |
Parameter |
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Material |
Food-grade Biaxially Oriented Polypropylene (BOPP) |
|
Structure |
Double-sided corona treated / double-sided heat-sealable (or customized single-sided heat-sealable) |
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Thickness Range |
15 μm–50 μm (conventional thickness for lamination/printing can be customized) |
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Heat-Seal Strength |
≥2.0 N/15mm (120°C, 0.3s) |
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Light Transmittance |
≥80% |
|
Haze |
≤2.5% |
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Tensile Strength (MD/TD) |
≥120 MPa / ≥200 MPa |
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Wetting Tension |
≥38 mN/m (both sides) |
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Thickness Control |
Thickness deviation strictly controlled within ±0.5 μm |
Suitable for outer-layer printed laminated films for biscuits, confectionery, nuts, puffed foods, and other snacks, offering an effective balance of attractive packaging appearance and reliable sealing performance.
Suitable for packaging applications such as facial masks, personal care products, hair and body care products, and tissue outer packaging, particularly where high-quality printing and an attractive package appearance are required.
Can be used for the outer packaging of tablets, health supplements, and medical devices. For specific pharmaceutical packaging materials and regulatory compliance requirements, the applicable test reports and certification documents should be used as the basis for verification.
Can be used as an outer-layer printing substrate or inner-layer laminating substrate and laminated with VMPET, PE, CPP, and other materials for three-side-seal bags, four-side-seal bags, stand-up pouches, and other flexible packaging structures.
The BOPP Both Sides Corona Treated Heat Sealable Film from HUA HENG is developed for demanding printing, lamination, and high-speed flexible packaging applications. By combining high-purity polypropylene resin, precision biaxial orientation, and double-sided corona treatment, the film achieves a stable balance between ink adhesion, initial lamination bond strength, and heat-sealing performance.
The wetting tension on both sides is suitable for flexographic and gravure printing, as well as dry lamination and solvent-free lamination, helping reduce the risks of ink removal, white spots, and delamination during processing. Its heat-sealing layer features a low initial sealing temperature, wide heat-sealing window, and good Hot Tack performance, providing reliable sealing strength for high-speed automatic packaging and bag-making operations.
In addition, the film offers excellent dimensional stability, flatness, tensile strength, and puncture resistance, helping maintain packaging appearance, printing registration accuracy, and product protection during transportation.
With extensive experience in BOPP film R&D and manufacturing, together with numerous packaging technology-related awards, HUA HENG demonstrates strong capabilities in material innovation and technical development. The company continuously combines advanced material technology with real-world packaging applications and provides customers in food, daily chemical, pharmaceutical, and multilayer flexible packaging industries with stable, reliable BOPP Both Sides Corona Treated Heat Sealable Film solutions through strict process control, intelligent online thickness measurement, and customized technical services.
It is suitable for both processes. The BOPP Both Sides Corona Treated Heat Sealable Film is optimized for flexographic and gravure printing, as well as dry and solvent-free lamination. It can be used as an outer-layer printing substrate or an inner-layer laminating substrate and can be combined with VMPET, PE, CPP, and other packaging materials.
Film dimensional stability and flatness can directly affect high-speed printing, lamination, and bag-making processes. This film provides good dimensional stability and flatness, helping reduce curling and film tracking risks during high-speed processing. As a result, it can contribute to improved multicolor printing registration and more consistent finished bag shapes.
Double-sided corona treatment maintains a high surface wetting tension on both sides of the film. The current product can achieve a wetting tension of ≥38 mN/m on both sides. For applications requiring double-sided printing, post-printing lamination, or flexible selection of the processing side according to the packaging structure, this design provides more consistent ink adhesion and initial lamination bond strength while helping reduce processing issues such as ink removal and insufficient lamination bonding.
The heat-seal strength is ≥2.0 N/15mm at 120°C for 0.3 seconds. The film also features a relatively low initial sealing temperature, a wide heat-sealing window, and good Hot Tack performance, making it suitable for high-speed automatic packaging and bag-making applications.
Yes. The BOPP Both Sides Corona Treated Heat Sealable Film is manufactured under an ISO 9001 Quality Management System, and HUA HENG can provide SGS test reports and relevant quality documentation. The specific scope of documents can be confirmed before procurement according to the customer's application and compliance requirements.
Address
No. 500, Qingsan Street, Light Textile Economic Zone, Binhai New Area, Tianjin, China
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