Method for producing metal mask for screen printing

Details Method for producing metal mask for screen printing Method for producing metal mask for screen printing

2008-07-16

2011-11-01

Heinrich, Samuel M (Department: 3742)

Electric heating

Metal heating

By arc

C219S121850, C451S039000, C451S526000

Reexamination Certificate

active

08049136

ABSTRACT:
A method for producing a metal mask for screen printing is provided, in which dross that is deposited at the time a boring operation is conducted via a laser beam is removed, without causing warpage or bending. The method for producing a metal mask for screen printing includes steps of: forming openings in the metal plate by melting the metal plate at positions irradiated by the laser beam; and ejecting an abrasive onto the other surface of the metal plate after the openings are formed. The abrasive ejected in the abrasive ejection step is one having a predetermined flat shape (plate-shaped abrasive), so as to form a plate shape having a flat surface, or an elastically deformable abrasive, with an average grain diameter of a dispersed or carried abrasive grain being 1 mm to 0.1 μm, and which is ejected at an incident angle of equal to or less than 80 degrees with respect to the other surface of the metal plate, and at an ejection pressure of 0.01 MPa to 0.7 MPa or at an ejection speed of 5 m/sec to 150 m/sec, so as to slide along the other surface of the metal plate.

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patent: 2006159402 (2006-06-01), None

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