METHOD OF PRODUCING MATERIAL FOR VAPOR DEPOSITION MASK, METHOD OF MANUFACTURING VAPOR DEPOSITION MASK

摘要

PROBLEM TO BE SOLVED: To provide a method of producing a material for manufacturing a vapor deposition mask in which both high definition and lightweight can be satisfied even when it is up-sized.SOLUTION: A material for vapor deposition mask formed by laminating a metal mask provided with slits and a thermosetting resin layer located on the surface of the metal mask is produced by a step for coating one side of a metal plate with a thermosetting resin, a step for forming a thermosetting resin layer by temporarily curing or curing the thermosetting resin thus applied on condition that an oxide film is not formed on the surface of the metal plate, a step for forming a metal mask by etching the metal plate from the other side and forming slits penetrating only the metal plate, and a step for forming an oxide film on the surface of the metal mask, by heating the metal mask and the thermosetting resin layer located on one side thereof.