Water-Based Screen Printing Ink
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United States of America Patent
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app pub date -
Jul 31, 2009
filing date -
Aug 28, 2001
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Abandoned
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Abstract
A water-based screen printing ink composition which can be used for flexo or gravure printing includes an acrylic or urethane-acrylic copolymer emulsion, a crosslinker, a pigment selected from the group consisting of luminescent pigments, magnetic pigments, optical effect pigments, optically variable pigments, and a catalyst. The crosslinker has at least two different chemical functionalities within the same molecule, a first of which forms a covalent link with the polymer prior to printing and a second of which effects crosslinking of the polymer to cure the printed ink.
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