US 9,809,037 B2
Ink jet recording method and ink jet recording apparatus
Takeshi Yano, Shiojiri (JP)
Assigned to Seiko Epson Corporation, (JP)
Filed by Seiko Epson Corporation, Tokyo (JP)
Filed on Apr. 15, 2016, as Appl. No. 15/99,703.
Claims priority of application No. 2015-103973 (JP), filed on May 21, 2015; and application No. 2015-139932 (JP), filed on Jul. 13, 2015.
Prior Publication US 2016/0339719 A1, Nov. 24, 2016
Int. Cl. B41J 11/00 (2006.01); B41M 5/00 (2006.01)
CPC B41J 11/0015 (2013.01) [B41M 5/0017 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An ink jet recording method comprising:
applying a reaction liquid to a recording medium by sending the reaction liquid from a reaction liquid container to a nozzle orifice in an ink jet head through a reaction liquid passage and discharging the reaction liquid from the nozzle orifice, the reaction liquid passage connecting the reaction liquid container to the nozzle orifice; and
applying a water-based ink composition to the recording medium by discharging the ink composition from a nozzle orifice in the ink jet head, the water-based ink composition containing a colorant,
wherein the reaction liquid contains a (meth)acrylic resin and a polyvalent metal salt, the polyvalent metal salt serving as a coagulating agent that is reactive with a component of the water-based ink composition,
the (meth)acrylic resin is a colorant dispersant for dispersing the colorant in the water-based ink composition,
at least one of materials that constitute the reaction liquid container and the reaction liquid passage and that make contact with the reaction liquid contains a C6 or higher aliphatic acid, and
wherein a ratio defined as A/M is 200 or greater, where M is a total amount, in parts by mass, of the aliphatic acid that can be dissolved from the at least one of the materials and A is a total amount, in parts by mass, of the (meth)acrylic resin contained in the reaction liquid in the reaction liquid container and the reaction liquid passage.