US 12,404,414 B2
Aqueous inkjet inks and inkjet printing methods
Jens Lenaerts, Mortsel (BE); and Nadine Willems, Mortsel (BE)
Assigned to Agfa NV, Mortsel (BE)
Appl. No. 18/253,420
Filed by AGFA NV, Mortsel (BE)
PCT Filed Nov. 8, 2021, PCT No. PCT/EP2021/080911
§ 371(c)(1), (2) Date May 18, 2023,
PCT Pub. No. WO2022/106236, PCT Pub. Date May 27, 2022.
Claims priority of application No. 20208787 (EP), filed on Nov. 20, 2020.
Prior Publication US 2024/0043709 A1, Feb. 8, 2024
Int. Cl. B41J 2/21 (2006.01); C09D 11/322 (2014.01); C09D 11/324 (2014.01); C09D 11/326 (2014.01); C09D 11/40 (2014.01)
CPC C09D 11/326 (2013.01) [B41J 2/2107 (2013.01); C09D 11/322 (2013.01); C09D 11/324 (2013.01); C09D 11/40 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An aqueous inkjet ink containing a yellow pigment selected from the group consisting of C.I. Pigment Yellow 83, C.I. Pigment Yellow 97, C.I. Pigment Yellow 110, C.I. Pigment Yellow 120, C.I. Pigment Yellow 150, C.I. Pigment Yellow 151, C.I. Pigment Yellow 154, C.I. Pigment Yellow 155, C.I. Pigment Yellow 175, C.I. Pigment Yellow 180, C.I. Pigment Yellow 181, C.I. Pigment Yellow 194, C.I. Pigment Yellow 213, C.I. Pigment Yellow 214, and mixed crystals thereof; a non-ionic polymeric dispersant NID; and an anionic polymeric dispersant ID; wherein the weight ratio R of the anionic polymeric dispersant ID to the non-ionic polymeric dispersant NID is between 0.1 and 1.5.