| 摘要 |
To realize a nozzle and processing method of nozzle capable of suppressing occurrence of vertical stripes due to foreign matter or aggregates in the paint or dust deposits on base material, and applying and forming a film in a uniform thickness even with a paint of strong cohesive energy and poor fluidity , it has an upstream lip 1, a downstream lip 2 in a curvature shape projecting to the base material side, and a slit 3 formed by the upstream lip 1 and downstream lip 2, and the slit 3 side edge B of the downstream lip 2 is formed in a curvature shape at a radius of curvature in a range of 5 to 45 mu m , and by this edge B, even a paint of high viscosity which hardly flows can smoothly flow into the gap between the downstream lip 2 and base material, and aggregates in the paint or dust deposits on the base material will not be caught in the edge B, thereby suppressing occurrence of vertical stripe which are fatal for the product quality. <IMAGE> |
