High-Performance BOPP Laminated Heat Sealable Film is an ideal outer-layer substrate that combines excellent visual presentation, high barrier performance, and reliable sealing. Manufactured from high-purity polypropylene resin using a precision biaxial orientation process, the film features optimized corona treatment on the surface, providing excellent initial lamination bond strength. Its outstanding dimensional stability and stiffness enable reliable compatibility with various dry lamination, solvent-free lamination, and extrusion lamination processes.
Whether used as an outer-layer printing substrate or an inner-layer laminating substrate, the film helps maintain strong bonding throughout multilayer structures and reduces the risk of delamination. It is a preferred material for upgrading food, daily chemical, and pharmaceutical packaging. The film itself also features a very low water vapor transmission rate, making it well suited to multilayer packaging structures and various lamination processes. It is an ideal choice for improving packaging quality and protection throughout the global food supply chain.
Through independently developed functional masterbatch formulations, HUA HENG strictly controls crystal points, fisheyes, and surface deposits in the film, helping ensure uniform and durable corona treatment performance from the source. The wetting tension can reach ≥38 mN/m. Whether used for flexographic/gravure printing or dry/solvent-free lamination, the film helps maintain strong bonding in multilayer structures while reducing common processing issues such as delamination, ink removal, and white spots.
An intelligent online thickness measurement system provides real-time thickness control, with thickness deviation strictly maintained within ±0.5 μm. The biaxial orientation process creates highly aligned molecular structures, giving the film high tensile modulus and low natural shrinkage. This helps minimize curling and film tracking problems during high-speed lamination and bag-making processes.
The film provides excellent slip and opening properties together with stable external friction performance. It is well suited to high-speed laminating machines and automatic bag-making equipment, helping reduce film tracking problems and jams while improving overall production yield.
|
Physical Performance Item |
Industrial Standard Parameter |
Test Standard / Method |
|
Material & Structure |
Food-grade Biaxially Oriented Polypropylene (BOPP) specialized structure for laminated heat-sealable applications; meets FDA contact standards / SGS certification |
— |
|
Available Thickness Range |
15 μm–50 μm (conventional printing/lamination thicknesses can be customized) |
ISO 4593 |
|
Corona-Treated Surface Wetting Tension |
≥38 mN/m (durable performance maintained after production) |
ASTM D2578 |
|
Tensile Strength (Machine Direction, MD) |
≥120 MPa |
ASTM D882 |
|
Tensile Strength (Transverse Direction, TD) |
≥200 MPa |
ASTM D882 |
|
Light Transmittance / Haze |
≥80% / ≤2.5% (high transparency for enhanced product presentation) |
ASTM D1003 |
The film surface undergoes high-intensity, highly uniform corona treatment, providing excellent ink adhesion. Whether used for fine gravure printing or flexographic printing, it delivers high-contrast, vivid, and high-gloss graphics, helping brands achieve a more premium visual presentation.
The enhanced molecular orientation provides the film with high tensile strength (MD ≥120 MPa, TD ≥200 MPa) together with excellent puncture and tear resistance. When used as the outer layer of a laminated structure, it can effectively withstand impacts during long-distance transportation and resist external puncture caused by contents such as nuts, hard tablets, or medical devices.
The high-purity BOPP substrate itself features a very low water vapor transmission rate, helping prevent external moisture and volatile substances from penetrating the package. This helps protect dry foods from moisture while preserving the active ingredients and formulations of daily chemical and beauty products.
HUA HENG does more than manufacture high-quality BOPP films. We are committed to building a low-carbon, environmentally responsible packaging supply chain aligned with international ESG standards. Through digital energy-saving and emission-reduction initiatives and the replacement of conventional energy with clean energy, we have achieved an annual carbon reduction of approximately 21,340 tons, helping brands strengthen the environmental credentials of their packaging and address international carbon-related requirements.
We have developed a 50,000 m² distributed photovoltaic power generation project across our manufacturing facility, generating up to 12 million kWh of electricity annually and covering approximately 40% of the site's electricity consumption. This initiative alone contributes to an annual carbon reduction of approximately 9,990 tons.
We have introduced advanced AI-powered photovoltaic cleaning robots, capable of accurately cleaning up to 1,000 m² of solar panels per hour. This helps maintain stable renewable energy generation while supporting consistent power supply for production-line temperature control and thickness measurement systems, reducing the risk of film crystal-point defects caused by unstable voltage.
HUA HENG New Materials is not only a manufacturer but also a contributor to the development of multiple national and industry-level green standards. We have comprehensively obtained ISO 9001, ISO 14001, ISO 45001, and ISO 50001 Energy Management System certifications. We can also provide global brand owners with complete carbon emission verification reports, carbon footprint verification reports, and internationally recognized Green Energy Certificates / VCS carbon asset offset certificates.
Choosing HUA HENG means choosing a strategic partner capable of genuinely supporting your brand in achieving its 2028 or 2030 supply-chain net-zero carbon targets.
Our High-Performance BOPP Laminated Heat Sealable Film complies with applicable global food-contact material and material safety requirements, and complete SGS test reports can be provided. For delivery, standard orders typically have a lead time of approximately 15–20 days after order confirmation. For standard specifications available from safety stock, the lead time can be significantly shortened to approximately 7–10 days.
For overseas B2B buyers, HUA HENG supports customized film samples based on your lamination structure, ink system, and packaging line speed. Samples can be provided for testing directly on your actual packaging equipment, helping verify printing, lamination, heat-sealing, and overall processing performance before bulk procurement.
Bag curling during lamination is often related to differences in shrinkage between the machine direction and transverse direction of the film. HUA HENG optimizes the heat-setting parameters during the biaxial orientation process to provide excellent dimensional stability. Under the high temperature and pressure generated by the oven and laminating rollers of high-speed solvent-free laminating machines, the film maintains very low natural shrinkage, helping keep laminated structures flat and finished bags square, stable, and visually consistent.
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No. 500, Qingsan Street, Light Textile Economic Zone, Binhai New Area, Tianjin, China
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