Manufacturing method of mold, manufacturing method of pattern sheet, manufacturing method of electroforming mold, and manufacturing method of mold using electroforming mold

摘要

The method for producing a mold includes preparing a disc 10 having a projection-shaped pattern 10A formed of a plurality of protrusions 12 and a thermoplastic resin sheet 20 in a pattern presence region 10D on a pedestal 10C. The base plate 10 and the thermoplastic resin sheet 20 are moved relative to each other to determine a position at which the original plate 10 is pressed against the thermoplastic resin sheet 20, and the protrusion 12 of the heated original plate 10 is The projected portion pressed against the thermoplastic resin sheet 20 at a position where the portion except the protrusion 12 and the surface 20B of the thermoplastic sheet 20 were separated from the pattern existence region 10D of the original plate 10. The original plate 10 is cooled in a state where the 12 and the thermoplastic resin sheet 20 are in contact with each other, and the original plate 10 and the thermoplastic resin sheet 20 are removed to form a concave pattern 20A on the thermoplastic resin sheet 20. ).