| 摘要 |
<p>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-1. Ease of Flex is defined as 1/Mt2, 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.</p> |
