| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for forming a mask capable of easily forming a resin layer on the surface of a base material layer in a state in which the resin layer is surely brought into contact with the surface thereof; and methods for manufacturing a printed wiring board, electrocast parts and a screen printing plate using the same.SOLUTION: A method for forming a mask 10 includes: a step of coming an acidic aqueous solution 30 containing an undercoat layer forming agent into contact with the surface of a base material layer 2, removing an oxide film on the surface of the base material layer 2, activating the surface of the base material layer 2, and forming an undercoat layer 3 derived from the undercoat layer forming agent on the surface of the base material layer; a step of providing a resin layer 1 having ultraviolet curing activity on the surface of the undercoat layer 3, thereby bringing the resin layer 1 into close contact with the surface of the base material layer 2 through the undercoat layer 3, and forming an ultraviolet curable mask layer 31 formed of the undercoat layer 3 and the resin layer 1; and a step of irradiating the mask layer 31 with ultraviolet rays to thereby cure an irradiation portion, and forming a mask 10 obtained by removing an uncured mask layer and curing.SELECTED DRAWING: Figure 1 |
