Patent ID: 9469099
Filing Date: 2016-10-18
CPC Classification: B41J,B41M,C09D

Claim Text:
1. A recording apparatus equipped with an ejection head that ejects an ink to a surface of the undercoat layer of an impermeable recording medium that has, on at least one surface thereof, an undercoat layer comprising a polymeric compound selected from the group consisting of polyurethane, polyester, polyvinyl chloride, and polyolefin, wherein the ink comprises a coloring agent, a polymer particle, water, and a water-soluble organic solvent and has a static surface tension of less than 30 mN/m and, when examined for dynamic surface tension by a maximum bubble pressure method, has a width of variation in dynamic surface tension of from 0.2 to 3.0 mN/m, the width of variation in dynamic surface tension being a difference between the dynamic surface tension measured at 1 msec after and the dynamic surface tension measured at 1 sec after a new interface was formed at the end of a capillary and when a maximum bubble pressure is reached.