Roll or roller – With specific roller exterior surface structure – Surface projections – indentations – or slits
Patent
1993-08-30
1995-05-02
Cuda, Irene
Roll or roller
With specific roller exterior surface structure
Surface projections, indentations, or slits
492 47, 492 54, 492 58, B23P 1500
Patent
active
054114624
ABSTRACT:
A lightweight ink transfer roll adapted for use in a flexographic printing apparatus. The roll includes an aluminum body member having a cylindrical outer surface, tubular opposite end portions, and a solid medial portion which forms a mid span stiffener in the roll. An aluminum header is fixed in each of the tubular end portions, and each of the headers has an inner end surface which is spaced from the solid medial portion of the body member so as to leave an open void therebetween. An outer covering layer, of for example aluminum oxide or a flame sprayed ceramic, overlies the outer cylindrical surface of the body member, and a plurality of ink metering cells are formed in the outer covering layer. Preferred methods of fabricating the roll are also disclosed.
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