UP Film Ultrasonic Spraying Process

450x450mm UP Film Ultrasonic Spraying Process: Precision Coating Technology for Polyether-based Conductive Materials

In high-end manufacturing sectors such as flexible electronics, precision components, and smart sensing, UP film has become a core substrate for conductive functional coatings due to its excellent flexibility, temperature resistance, and insulation stability. However, achieving uniform conductive coating on large-format 450x450mm UP film has long been a technical challenge for the industry. Traditional spraying processes often suffer from issues like uneven coating thickness, missed coverage at edges, and material waste due to overspray, failing to meet the precision film-forming requirements for polyether-based conductive materials. The widespread adoption of ultrasonic spraying equipment has fundamentally resolved this technical pain point, making it the preferred solution for preparing conductive coatings on large-area flexible films.

Ultrasonic spraying technology relies on the principle of high-frequency atomization, dispensing with the air-pressure-driven mode of traditional high-pressure spraying. It uses mechanical vibration to atomize the polyether-based conductive material solution into uniform, micron-sized droplets. Combined with a precise CNC motion system and a constant-temperature carrier gas assist structure, the droplets are deposited gently and at a uniform speed onto the surface of the 450x450mm UP film substrate. The process involves no high-impact forces, preventing stretching, wrinkling, or damage to the flexible film, making it perfectly suited to the spraying characteristics of flexible substrates. Compared to traditional methods, this spraying technique produces a concentrated droplet size distribution and a dense, fine film, effectively eliminating defects such as pinholes, streaks, and material pooling.

Designed for large-format (450 x 450 mm) spraying applications, the ultrasonic spraying system features a high-precision, full-coverage motion system. This ensures highly consistent coating thickness across the entire substrate—from the center to the corners—with significantly tighter thickness tolerances, making it ideal for large-scale mass production. Additionally, the system incorporates a closed-loop flow control module that stabilizes the discharge rate in real-time; this prevents flow fluctuations during extended operations, guarantees coating consistency across batches, and substantially improves the yield rate.

While polyether-based conductive materials offer stable conductivity, strong adhesion, and excellent aging resistance—making them suitable for various flexible conductive film applications—they come with high material costs. The ultrasonic spraying process, characterized by its splash-free and waste-free operation, dramatically increases material utilization and reduces waste compared to traditional methods, thereby effectively controlling mass production costs. UP films (450 x 450 mm) processed using this technique exhibit excellent conductive coating adhesion and bonding integrity, resisting peeling or flaking, while maintaining uniform and stable conductivity; they are well-suited for applications in flexible circuits, touch films, and sensing components.

With its core advantages of precision control, high adaptability, and cost-effectiveness, the ultrasonic spraying process for polyether-based conductive materials on 450 x 450 mm UP films has become a key technology in precision flexible coating manufacturing, providing an efficient, stable, and high-quality solution for the mass production of large-area functional films.

About Cheersonic

Cheersonic is the leading developer and manufacturer of ultrasonic coating systems for applying precise, thin film coatings to protect, strengthen or smooth surfaces on parts and components for the microelectronics/electronics, alternative energy, medical and industrial markets, including specialized glass applications in construction and automotive.

Our coating solutions are environmentally-friendly, efficient and highly reliable, and enable dramatic reductions in overspray, savings in raw material, water and energy usage and provide improved process repeatability, transfer efficiency, high uniformity and reduced emissions.

If you have any technical questions, customization demands, or procurement inquiries about ultrasonic atomization nozzles, feel free to contact our professional sales and technical team for detailed parameters, customized solutions, and industry application support.
Email: market2@cheersonic.com