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US 11,027,556 B2Granted
Ink composition and ink jet recording set
AssigneeSeiko Epson Corporation
InventorKenta Uchida
Life of this patent
Estimating the term…
Abstract
An ink composition to be used in an ink jet recording apparatus includes a self-dispersing pigment, a soap-free resin, and water. When 15 g of the ink composition is weighed into a 50-mL sample bottle and the sample bottle is shaken 100 times for one minute, at 60 seconds after shaking, a foam height from a liquid level is 1 cm or less.
Claims5
An ink composition to be used in an ink jet recording apparatus, the ink composition comprising:
- a self-dispersing pigment;
- a soap-free resin;
- and
- water, wherein
- when 15 g of the ink composition is weighed into a 50-mL sample bottle and the sample bottle is shaken 100 times for one minute, at 60 seconds after shaking, a foam height from a liquid level is 1 cm or less.
2 more elements
An ink jet recording set comprising:
- an ink jet recording apparatus;
- and
- an ink supply container containing an ink composition, wherein
- the ink jet recording apparatus includes an ink storage container having an ink pouring port;
- a height from an inner wall of the ink storage container facing the ink pouring port to the ink pouring port is 3 cm or more;
- the ink composition includes a self-dispersing pigment, a soap-free resin, and water;
- and
- when 15 g of the ink composition is weighed into a 50-mL sample bottle and the sample bottle is shaken 100 times for one minute, at 60 seconds after shaking, a foam height from a liquid level is 1 cm or less.
5 more elements
Dependencies are inferred from the claim text.