	US 11,718,100 B2
	Ink jet ink composition, ink jet recording method, and ink set
Keiji Iida, Chikuhoku (JP); Kenichiro Kubota, Matsumoto (JP); Naoki Koike, Matsumoto (JP); Jun Ito, Shimosuwa (JP); and Makoto Nagase, Shiojiri (JP)
Assigned to SEIKO EPSON CORPORATION
Filed by Seiko Epson Corporation, Toyko (JP)
Filed on Jan. 6, 2021, as Appl. No. 17/142,406.
Application 17/142,406 is a continuation of application No. 15/551,770, granted, now 10,919,311, previously published as PCT/JP2016/000357, filed on Jan. 25, 2016.
Claims priority of application No. 2015-033764 (JP), filed on Feb. 24, 2015.
Prior Publication US 2021/0122166 A1, Apr. 29, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. B41J 2/21 (2006.01); C09D 11/322 (2014.01); C09D 11/40 (2014.01); B41M 5/00 (2006.01); C09D 11/36 (2014.01)

CPC B41J 2/2107 (2013.01) [B41M 5/0023 (2013.01); B41M 5/0047 (2013.01); C09D 11/322 (2013.01); C09D 11/36 (2013.01); C09D 11/40 (2013.01)]

9 Claims

1. A non-aqueous ink jet ink composition comprising:

a cyclic ester compound;

at least one first solvent represented by the following General Formula (1) and having a flash point of 140° C. or lower:

R¹O—(R²O)_m—R³;

a second solvent represented by the General Formula (1); and

C.I. Pigment Orange-43 (PO-43) as a pigment,

wherein, in the at least one first solvent represented by General Formula (1), R¹and R³each independently represent hydrogen or an alkyl group having 1 to 5 carbon atoms, R²represents an alkylene group having 2 or 3 carbon atoms, and m represents an integer of 2 to 6,

wherein the second solvent represented by General Formula (1) includes a glycol monoether compound in which at least one of R¹and R³is hydrogen, and

wherein a volume average particle diameter of the PO-43 is 150 nm or more and 300 nm or less.