With comprehensive advantages including high transparency, outstanding gas barrier performance, high mechanical strength, excellent temperature and oil resistance as well as stable dimensional property, BOPET (Biaxially Oriented Polyethylene Terephthalate) films are manufactured in large-scale and high-precision mode via professional biaxially oriented film production lines.
Widely adopted in food & pharmaceutical packaging, printing labels, electronic communication, new energy photovoltaic and optical display sectors, BOPET films can meet standardized mass production demands from traditional light industries and support customized R&D of functional films for advanced new material sectors. Delivering reliable intelligent manufacturing overall solutions for high-performance films, BOPET has become one of the core tracks for domestic substitution in the new material industry.
Core Application Fields
(1) High-end Packaging Industry: The Most Mature Application of BOPET Films
●High-grade Outer Packaging for Food, Pharmaceuticals and Cosmetics
Featuring high light transmittance and smooth clean surface, BOPET films can fully display product appearance and greatly upgrade packaging texture and brand image. They are widely used for high-value products such as snacks, prepared dishes, health supplements, bottled medicines and skincare gift boxes. Films produced by precision biaxial stretching lines feature uniform thickness and high cleanliness, complying with food-grade and pharmaceutical-grade safety production standards.
●Excellent Barrier Performance for Extended Shelf Life
BOPET materials deliver superior barrier against oxygen, moisture and grease. For retort food and vacuum meat packaging, they retain original flavor and slow down oxidation to prolong shelf life. In sterile packaging of medicines and medical devices, the films prevent dampness and oxidation to guarantee product quality during storage and transportation.
●Substrate for Various Packaging Products
Thanks to great tensile toughness, tear resistance and good thermal lamination compatibility, BOPET films can be processed into vacuum bags, retort pouches, sealing films, stretch wraps and adhesive tape substrates. Flexible and durable, they fit diverse scenarios such as flexible packaging, sealing and bundling, and adapt to high-speed automatic packaging lines.
(2) Printing & Label Industry
With flat surface and strong printing adhesion, corona-treated BOPET films support color printing, hot stamping and thermal transfer. They are commonly used for self-adhesive labels, anti-counterfeit stickers, daily chemical labels, logistics laminating films and decorative printing films. Printed patterns stay clear and wear-resistant, resisting high/low temperature and outdoor fading & deformation.
(3) New Energy & Photovoltaic Industry – High-growth Emerging Market
Driven by carbon peaking and carbon neutrality strategies, demand for BOPET films used for photovoltaic backsheets has surged. Biaxial stretching lines produce thick, weather-resistant, UV-resistant and insulating BOPET films serving as core insulating substrates for PV modules, protecting equipment from harsh outdoor environments and ensuring over 25 years of stable operation. Besides, they are widely applied in lithium battery insulating base films and new energy vehicle wire harness wrapping films to secure power battery safety with stable thermal and insulating properties.
(4) Electronic & Optical Display Industry
High-precision biaxial stretching technology enables optical-grade BOPET films to feature ultra-thin thickness, low shrinkage and high light transmittance. Serving as key substrates for diffusion films, brightness enhancement films, release films and protective films, they are applied in LCD screens, touch panels, flexible circuit boards and MLCC components. As critical basic materials for domestic substitution in high-end electronic information industry, optical BOPET boasts huge market growth potential.
The domestic BOPET industry shows obvious structural characteristics: overcapacity in low-end packaging-grade films while supply shortage in high-value functional films including photovoltaic backsheet films, optical base films, pharmaceutical retort films and electronic insulating films with continuously rising market demand.
High-performance BOPET biaxially oriented film production lines adopt precise stretching control, stable wide-width extrusion and accurate thickness adjustment. They help film manufacturers realize cost-efficient mass production for traditional packaging industries as well as pilot R&D and large-scale production of modified functional films. Equipped with such production lines, enterprises can seize high-end market opportunities, upgrade product structures and boost the high-quality development of packaging, new energy and electronic new material industrial chains.
