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US 9,790,389 B2Granted
Water-based ink for ink-jet recording and ink cartridge
AssigneeBrother Kogyo Kabushiki Kaisha
InventorsYuki Okumura, Mitsunori Maeda, Hiroyuki Tanaka
Life of this patent
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Abstract
A water-based ink for ink-jet recording includes: a pigment; water; a pigment dispersing resin including an ethylene oxide chain; and at least one of an anionic surfactant including an ethylene oxide group and a nonionic surfactant including an ethylene oxide group.
Claims21
A water-based ink for ink-jet recording comprising:
- a pigment;
- water;
- a water-soluble pigment dispersing resin polymer including an ethylene oxide chain;
- and
- an anionic surfactant including an ethylene oxide group and a nonionic surfactant including an ethylene oxide group.
2 more elements
Dependencies are inferred from the claim text.