Ink composition, process for producing same, and ink-jet ink set and ink-jet printing system both including said ink composition
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United States of America Patent
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Feb 2, 2021
Grant Date -
Mar 8, 2018
app pub date -
Sep 13, 2016
filing date -
Sep 14, 2015
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Abstract
An ink composition according to the present invention contains a polymerizable compound and a photopolymerization initiator, wherein an amount of organic sulfonic acid measured at a temperature of 25° C. by using a water extraction method is 50 ppm or less, and an amount of water measured by a Karl Fischer method is 0.50 mass % or less with respect to a total mass of the ink composition. Also, an ink-jet ink set according to the present invention includes the above-described ink composition of the present invention. Also, an ink-jet printing system according to the present invention uses the above-described ink composition of the present invention and an ink-jet recording apparatus, and the ink-jet recording apparatus includes an ink heating portion and an ink filter.
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