US 12,215,239 B2
Ink composition, ink set, and image recording method
Naoko Nishimura, Kanagawa (JP); and Naotaka Wachi, Kanagawa (JP)
Assigned to FUJIFILM Corporation, Tokyo (JP)
Filed by FUJIFILM Corporation, Tokyo (JP)
Filed on Jan. 14, 2021, as Appl. No. 17/148,580.
Application 17/148,580 is a continuation of application No. PCT/JP2019/031552, filed on Aug. 9, 2019.
Claims priority of application No. 2018-173027 (JP), filed on Sep. 14, 2018.
Prior Publication US 2021/0130630 A1, May 6, 2021
Int. Cl. C09D 11/00 (2014.01); B41M 5/00 (2006.01); C08K 3/22 (2006.01); C08K 3/36 (2006.01); C08K 5/053 (2006.01); C08K 9/02 (2006.01); C09D 11/322 (2014.01); C09D 11/38 (2014.01); C09D 11/40 (2014.01)
CPC C09D 11/322 (2013.01) [B41M 5/0023 (2013.01); C08K 3/22 (2013.01); C08K 3/36 (2013.01); C08K 5/053 (2013.01); C08K 9/02 (2013.01); C09D 11/38 (2013.01); C09D 11/40 (2013.01); C08K 2003/2227 (2013.01); C08K 2003/2241 (2013.01); C08K 2003/2244 (2013.01); C08K 2201/003 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An ink set, comprising:
an ink composition; and
a colored ink composition,
wherein the ink composition comprises:
titanium dioxide particles;
metal oxide particles;
a first dispersant; and
water,
wherein an average particle diameter of the titanium dioxide particles is 100 nm or greater,
an average particle diameter of the metal oxide particles is smaller than the average particle diameter of the titanium dioxide particles,
the metal oxide particles are oxide particles of at least one metal selected from the group consisting of zirconium, aluminum, silicon, zinc, and iron, and
an acid value of the first dispersant is 50 mgKOH/g or less;
wherein the colored ink composition comprises:
a colorant;
a second dispersant; and
water,
wherein an acid value of the second dispersant is greater than 50 mgKOH/g.