Printing form precursor, a process for making the precursor, and a method for preparing a printing form from the precursor

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United States of America Patent

PATENT NO 11858252
APP PUB NO 20230001684A1
SERIAL NO

17939588

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The invention pertains to a photosensitive element, particularly a photopolymerizable printing form precursor; a method of preparing the photosensitive element to form a printing form for use in relief printing; and, a process of making the photosensitive element. The printing form precursor includes a layer of a photosensitive composition, a digital layer that is adjacent to a side of the photosensitive layer, and a cell pattern layer that is disposed between the photosensitive layer and the digital layer. The cell pattern layer includes a plurality of features in which each feature an area between 5 to 750 square microns and is composed of an ink that is opaque to actinic radiation and transparent to infrared radiation. Since the cell pattern layer is integral with the printing form precursor, digital imaging can occur rapidly with relatively low resolution optics to form a mask without needing to also form a microcell pattern of the digital layer. The printing form precursor having the integrated cell pattern layer facilitates the preparation of relief printing forms to have a print surface suitable for printing solids with uniform, dense coverage of ink.

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Patent Owner(s)

Patent OwnerAddress
DUPONT ELECTRONICS INCWILMINGTON DE

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Blomquist, Robert M River Edge, US 11 30
Hackler, Mark A Ocean, US 22 187
Locke, John Stephen Hockessin, US 11 60
Taylor, Bradley K West Chester, US 12 129

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