A premature polymerization of an ultraviolet curing ink (or other UV curing coating or substance) in the absence of exposure to actinic light. A dark reaction results in the conversion of the ink or emulsion into a gel-like material.
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A premature polymerization of an ultraviolet curing ink (or other UV curing coating or substance) in the absence of exposure to actinic light. A dark reaction results in the conversion of the ink or emulsion into a gel-like material.