US 11,872,827 B2
Ink for ink jet recording, ink jet recording apparatus, and ink jet recording method
Soichi Yamazaki, Shiojiri (JP); Shunsuke Uchizono, Shiojiri (JP); and Hiroaki Kumeta, Matsumoto (JP)
Assigned to SEIKO EPSON CORPORATION
Filed by Seiko Epson Corporation, Toyko (JP)
Filed on Mar. 12, 2021, as Appl. No. 17/199,557.
Application 17/199,557 is a continuation of application No. 16/502,114, filed on Jul. 3, 2019, granted, now 11,040,562.
Claims priority of application No. 2018-129098 (JP), filed on Jul. 6, 2018.
Prior Publication US 2021/0197607 A1, Jul. 1, 2021
Int. Cl. C09D 11/30 (2014.01); C09D 11/38 (2014.01); C09D 11/322 (2014.01); B41J 2/01 (2006.01); B41M 5/00 (2006.01); C09D 11/033 (2014.01); C09D 11/037 (2014.01)
CPC B41M 5/0023 (2013.01) [B41J 2/01 (2013.01); C09D 11/033 (2013.01); C09D 11/037 (2013.01); C09D 11/30 (2013.01); C09D 11/322 (2013.01); C09D 11/38 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An ink for ink jet recording, the ink comprising:
pigment;
colloidal silica;
amine; and
amino acid,
wherein the amino acid is trimethylglycine or dimethylglycine, and a content of the amino acid is 4% by mass or more and 20% by mass or less relative to a total mass of the ink, and
wherein a content of the colloidal silica is 3% by mass or more and 10% by mass or less relative to the total mass of the ink.