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公开(公告)号：EP1011972A4
公开(公告)日：2000-06-28
申请号：EP97949794
申请日：1997-12-03
申请人： MARKEM CORP
发明人： SCHEUHING ROBERT B
CPC分类号： B41F17/001
摘要： A cup holder (20) for rotating a doctoring ink cup (12) includes a housing (22) with a cup receiving chamber (26) and a bumper (28) extending into the chamber (26). The bumper contacts the ink cup (12) to rotate it within the chamber (26) during inking of a gravure plate (14). It is the relative motion of the plate (14) and the ink cup (12) during inking of the plate (14) which causes the bumper (28) to contact the ink cup (12). A second bumper (30) extends into the cup receiving chamber (26). A method of inking a gravure plate includes inking the plate by relative motion between an ink cup and the plate, and rotating the ink cup during inking such that an edge of the ink cup in contact with the plate rotates with respect to the plate. The rotation is caused by the relative motion.
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公开(公告)号：EP1007358A4
公开(公告)日：2000-06-14
申请号：EP97932620
申请日：1997-07-09
申请人： MARKEM CORP
发明人： SCHEUHING ROBERT B
CPC分类号： B41F17/001
摘要： A doctoring cup (14) particularly suited for inking non-flat plates (12) includes a plate contacting edge (24) with an "Ease of Flex" parameter greater than about 0.020 lb . Ease of Flex is defined as 1/Mt , where t is the thickness of the plate contacting edge (24), and M is the flexural modulus of the material from which the cup wall (18) defining the edge (24) is formed. By non-flat plates (12) is meant plates out of flat by greater than 0.0002 inches/inch. The doctoring cup (14) can be used to ink both flat and non-flat printing plates (12) using a doctoring pressure of less than about 300 psi.
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