Composite relief image printing elements
AssigneeMacDermid Graphic Arts, Inc.
InventorsEdward Murphy, David Recchia, Daniel Rosen
Life of this patent
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Abstract
High-quality composite printing elements are prepared without the need for precise registration of constituent photocurable elements by disposing at least one photocurable element, and preferably a plurality of photocurable elements, upon a surface of a printing element in approximate register and then transferring a computer-generated negative onto a surface of the elements.
Claims8
A composite printing element comprising at least one photocurable element disposed on a first surface of a substantially arcuate printing element that bears registration information, said photocurable element comprising:
- a support layer;
- photocurable material disposed upon said support layer;
- and
- negative-forming ink disposed upon said photocurable material, said ink being substantially opaque to actinic radiation in at least one wavelength region effective to cure said pbotocurable material and substantially resistant to polymerization upon exposure to actinic radiation in said wavelength region.
A composite printing element comprising at least one photocurable element disposed on a first surface of a substantially arcuate printing element that bears registration information, said photocurable element comprising:
- a support layer;
- photocurable material disposed upon said support layer;
- and
- a photoablatable mask layer disposed upon said photocurable material, said photoablatable mask layer being substantially opaque to actinic radiation in at least one wavelength region effective to cure said photocurable material and substantially resistant to polymerization upon exposure to actinic radiation in said wavelength region.
A composite printing element comprising at least one photocurable element disposed on a first surface of a printing element that bears registration information, said photocurable element comprising:
- a support layer;
- photocurable material disposed upon said support layer;
- and
- a photoablatable mask layer disposed upon said photocurable material, said photoablatable mask layer being substantially opaque to actinic radiation in at least one wavelength region effective to cure said photocurable material and substantially resistant to polymerization upon exposure to actinic radiation in said wavelength region.
Dependencies are inferred from the claim text.