A roll-to-roll long-width full-surface coating device
By introducing a primary and secondary film winding system, the problem of uneven thickness caused by blank film edges in roll-to-roll vacuum coating was solved, achieving full-surface coating, improving coating efficiency and substrate utilization, and reducing equipment maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GOLD STONE (FUJIAN) ENERGY CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-14
AI Technical Summary
In roll-to-roll vacuum coating, the blank edges of the film result in a thickness difference between the two sides and the middle of the substrate, affecting flatness. Furthermore, the cold roller is easily contaminated, increasing maintenance costs and reducing coating efficiency.
A main and auxiliary film winding system is adopted, with the auxiliary film winding system assisting the main film winding system. By setting the auxiliary film steps and controlling the uniformity of coating, the coating edge problems are transferred to the auxiliary film, achieving full-area coating and preventing the coating material from spreading to the main roller.
It achieves uniform coating on the entire surface of the substrate, reduces equipment maintenance costs, improves coating efficiency and substrate utilization, and avoids contamination and wrinkles from the cold roller during the coating process.
Smart Images
Figure CN224494320U_ABST