POLYMER EMULSION AND AQUEOUS INKJET RECORDING LIQUID CONTAINING SAID POLYMER EMULSION
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United States of America Patent
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app pub date -
Dec 27, 2013
filing date -
Jan 9, 2009
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Abstract
An object of the present invention is to provide a pigment-type aqueous inkjet recording liquid capable of improving the clogging in nozzles and providing stable discharge, and having excellent physical properties required as an inkjet recoding liquid, in particular an OD value and wear-resistance. An aqueous inkjet recording liquid according to the present invention contains a polymer emulsion obtained by radically polymerizing a radically-polymerizable unsaturated monomer (a) containing radically-polymerizable unsaturated monomer having a specific amount of an alkoxysilyl group (a2) as an essential ingredient by using a specific amount of an emulsifier, water, and an aqueous polymerization initiator, and a pigment, in which a number of ultra-large particles of 1.5 μm or greater in the polymer emulsion when converted to a solid content concentration 0.1% is 5.0×105/cm3 or fewer as measured by a particle counting method.
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