B - Operations – Transporting – 41 – C
Patent
B - Operations, Transporting
41
C
96/27, 101/61
B41C 1/10 (2006.01) G03F 3/10 (2006.01) G03F 7/075 (2006.01)
Patent
CA 1163858
ABSTRACT A printing plate of the planographic type, i.e., not containing raised or depressed image areas, wherein printing occurs from the oleophilic (when dry) image areas of the plate while being completely rejected in the highly adhesive non- image background areas, all entirely in the absence of the water or dampening solutions necessary in lithography (litho- graphy being fundamentally based on the fact that water and oils are immiscible, and wherein it has been necessary first to wet or dampen the background areas before they would reject the oily ink). The plate can be imaged photographically, pre-sensitized plate structures being preferred, or mechanically or by electrical discharge techniques. The abhesive non- image background areas are characterized by an adhesive release value when dry of less than about 100 grams per inch. A preferred material for the abhesive layer is cured solid essentially linear elastomeric organopolysiloxane.
9211
Minnesota Mining And Manufacturing Company
Smart & Biggar
LandOfFree
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