Patent ID: 11965104
Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. An ink set comprising an inkjet ink and a cleaning solution, wherein
the inkjet ink contains a first aqueous medium, a carbon black, a dispersing resin, a first zwitterionic surfactant having an amidoalkylbetaine structure, and a first sugar alcohol,
the carbon black has an oil absorption number of at least 140 mL/100 g and no greater than 145 mL/100 g,
a ratio of a content of the dispersing resin to a content of the carbon black is at least 14.0% by mass and no greater than 16.0% by mass,
the first zwitterionic surfactant has a content ratio in the inkjet ink of at least 0.7% by mass and no greater than 2.0% by mass,
the first sugar alcohol has a content ratio in the inkjet ink of at least 5.0% by mass and no greater than 15.0% by mass,
the cleaning solution contains a second aqueous medium, a second zwitterionic surfactant having an amidoalkylbetaine structure, and a second sugar alcohol,
the second zwitterionic surfactant has a content ratio in the cleaning solution of at least 14.0% by mass and no greater than 22.0% by mass,
the second sugar alcohol has a content ratio in the cleaning solution of at least 13.0% by mass and no greater than 22.0% by mass,
the first aqueous medium contains water and a water-soluble organic solvent,
the water-soluble organic solvent includes 3-methyl-1,5-pentanediol and glycol ether, and
the 3-methyl-1,5-pentanediol has a content ratio in the first aqueous medium of at least 19.0% by mass and no greater than 19.5% by mass.