INTAGLIO PRINTING PLATE
PROBLEM TO BE SOLVED: To provide an intaglio printing plate used in preparing forgery preventive prints which require prevention of forgery or duplication, including valuable papers, e.g. bank notes, stock certificates and bond certificates, various certificates and important documents.SOLUTION: In...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide an intaglio printing plate used in preparing forgery preventive prints which require prevention of forgery or duplication, including valuable papers, e.g. bank notes, stock certificates and bond certificates, various certificates and important documents.SOLUTION: In an intaglio printing plate, convex parts are arranged at nearly equal intervals on the longitudinal-direction center line of concave parts constituting intaglio drawn lines. The convex parts are in a circular shape and/or an elliptical shape, have the topmost part consisting of the nearly central part of a convex part, are inclined toward the outer edge of the convex part and include a non-convex region where no convex part is provided between the outer edge of the convex part and the outer edge of a concave part.
【課題】 本発明は、銀行券、株券、債券等の有価証券、各種証明書及び重要書類等の偽造防止又は複製防止が必要とされる偽造防止印刷物を作製するための凹版版面に関するものである。【解決手段】 凹版版面において、凹版画線を形成する凹部の長手方向の中心線上に凸部が略等間隔に配置され、凸部は円形状及び/又は楕円形状から成り、凸部は略中央部を最頂部とし、凸部の外縁に向かって傾斜しており、凸部の外縁と凹部の外縁の間には凸部が形成されていない非凸部領域を有することを特徴とする。【選択図】図2 |
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