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US 12,215,239 B2Granted
Ink composition, ink set, and image recording method
AssigneeFUJIFILM Corporation
InventorsNaoko Nishimura, Naotaka Wachi
Life of this patent
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Abstract
An ink composition is an ink composition including titanium dioxide particles, metal oxide particles, a dispersant, and water, in which 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, and the metal oxide particles are oxide particles of at least one metal selected from the group consisting of zirconium, aluminum, silicon, zinc, and iron.
Claims17
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.
16 more elements
Dependencies are inferred from the claim text.