Introduction to Optical PET Release Film
Optical PET release film is a high-end ultra-clean functional film developed specifically for optical-grade manufacturing and precision optoelectronic processing. Different from conventional industrial release films, it adopts high-transmittance, low-defect optical PET substrate with strict surface polishing and precision silicone coating treatment. Designed for optical adhesive materials, optical films and display component production, it features ultra-high flatness, excellent light transmittance and extremely low surface roughness, meeting the stringent zero-defect standards of the optoelectronic industry.
The core production process strictly follows optical-level manufacturing specifications. The film is coated with a uniformly distributed thin silicone release layer through dust-free workshop coating and constant-temperature curing technology. This eliminates common defects such as coating streaks, particle impurities and uneven release force. The material delivers stable and controllable light release force, enabling clean and smooth peeling without residual glue, micro-scratches or surface fogging. Its ultra-smooth surface effectively avoids optical distortion, ensuring the original optical performance of laminated materials remains intact.
Optical PET release film possesses superior comprehensive physical and chemical properties. It exhibits high light transmittance and low haze, with excellent anti-yellowing performance under long-term light irradiation and high-temperature environments. It maintains stable dimensional stability, no shrinkage or deformation during lamination, die-cutting and high-temperature curing processes. Additionally, it features outstanding chemical inertness and anti-pollution capability, resisting reactions with optical adhesives, coating solutions and functional pastes, which protects the precision structure of optical components.
It is widely applied in high-precision optical and display fields, serving as an essential liner for OCA optical adhesive, protective films for display screens, polarizers, brightness enhancement films and touch panel optical components. It provides effective isolation protection during production, processing and transportation, preventing dust adhesion, surface scratches and bonding failure.
With ultra-clean quality, stable release performance and excellent optical consistency, optical PET release film adapts to automated high-precision production. It is a critical auxiliary material for improving the yield and display effect of smartphones, tablets, wearable devices and high-end display products.