| 摘要 |
The invention concerns a blade coater and a method for coating a web backed by a rotatable backing roll. The blade coater unit includes a support structure, a feeder mounted to the support structure and capable of feeding the coating mix onto the web when brought close to the web in running conditions, and a smoothing device arranged to the immediate vicinity of the web for the application of the fed coating mix. The blade coater unit is essentially placed below the backing roll, the smoothing device is a flexible blade having a tip inclination angle alpha less than 20 DEG , and the feeder has a narrow exit opening arranged to the stem of the flexible blade without any essential steps in order to facilitate a fast, laminar flow of the coating mix. The approach in accordance with the invention achieves a coat of high quality. |
