Process for producing an embossing die in roll form

Details Process for producing an embossing die in roll form Process for producing an embossing die in roll form

G - Physics

03

F

G03F 7/038 (2006.01) B41C 1/18 (2006.01) B44B 5/02 (2006.01) C23F 1/04 (2006.01) G03F 7/00 (2006.01)

Patent

CA 2075325

Abstract of the Disclosure A process for producing an embossing die in roll form for embossing a relief on at least one side of a flat material. The process includes the steps of applying a photoresist layer to one side of a metal sheet in planar form; exposing the photoresist layer through a film having a pattern corresponding to the relief; developing the metal sheet by removing unexposed parts of the photoresist layer; bending the metal sheet into sleeve from around a roll such that exposed parts of the photoresist layer face outwardly; etching unexposed regions of the metal sheet down to a predetermined depth; removing the exposed parts of the photoresist layer from the metal sheet; connecting mutually facing edges of the metal sheet; and fastening the metal sheet to a die roll.

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