Water capture pumps improve the quality of roll-to-roll coating films and reduce defective scrap.

Moisture in the vacuum chamber is a major cause of color difference, dealuminization, and pinholes in aluminized films and capacitor films. Xieyi moisture capture pumps continuously control the partial pressure of moisture, improving film density and reducing film scrap rates.

Industry data shows that 80% of defects in roll-to-roll coating films originate from residual moisture in the chamber. Paired with Xieyi WVCP series moisture capture pumps, which stably control the partial pressure of vacuum moisture, defective products are reduced at the source. Suitable for the two mainstream roll-to-roll coating processes: aluminized packaging film and metallized capacitor film.

Food packaging metallized film production: The WVCP water vapor capture pump continuously removes vacuum water vapor, inhibiting aluminum layer oxidation, resulting in uniform film reflection without color difference, a 40% increase in film peel strength, and virtually eliminating the problem of dealuminization and scrap in downstream lamination processes; Metallized capacitor film production: The vacuum chamber maintains a consistently low water vapor partial pressure, resulting in a dense, pinhole-free vapor-deposited metal layer, stable voltage resistance of the finished product, and a significant reduction in batch capacity dispersion; Inhibition of oil vapor contamination: Low-temperature coil synchronous capture and diffusion pumps evaporate oil vapor, eliminating oil spots on the substrate and reducing target material oxidation loss by 32%; Improved process consistency: Vapor deposition rate remains drift-free, film thickness tolerance is controlled within ±3%, and the overall pass rate for high-end orders increases from 82% to 97%, significantly reducing film and target material raw material losses.

If the production line lacks a matching roll-to-roll coating water vapor capture pump for an extended period, water vapor continuously interferes with the vacuum environment, leading to a persistently high defect rate and continuously rising production costs.

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