Flexographic printing plate with ink-repellent non-image areas

Details Flexographic printing plate with ink-repellent non-image areas Flexographic printing plate with ink-repellent non-image areas

2005-04-19

2005-04-19

Hamilton, Cynthia (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making printing plates

C430S309000

Reexamination Certificate

active

06881533

ABSTRACT:
A method for making a relief printing plate from an imageable lithographic printing plate precursor. The relief printing plate has ink-receptive cured areas, and ink-repellent non-image areas. The method comprises the steps of: a) imaging the lithographic printing plate precursor to produce ink-receptive image areas and ink-repellent non-image areas; b) applying a curable composition to form a coating on ink-receptive image areas; and c) curing the coating to produce ink-receptive cured areas. The method of another embodiment further comprises the steps of: d) applying a curable composition to form a coating on ink-receptive cured areas; e) curing the coating on the cured areas; and f) repeating steps d) and e) to attain a desired relief depth for the ink-receptive cured areas. In the practice of an embodiment of the invention, a modified rotary printing press may be employed to make a relief printing plate from a lithographic printing plate.

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U.S. Appl. No. 10/368,262, filed Feb. 18, 2003, Huang.

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