Back to results
US 2018/0001643 A1Published application
Aqueous ink set for ink jet recording, recording method, and ink jet recording apparatus
AssigneeSeiko Epson Corporation
InventorsShintaro HAMA, Ryosuke TERAMOTO, Yuho MIYAKE, Tetsuya AOYAMA
Life of this patent
Estimating the term…
Abstract
An aqueous ink set for ink jet recording includes an aqueous pigment ink containing water and a pigment as a coloring agent and an aqueous dye ink containing water and a dye as a coloring agent, in which the concentration of the divalent metal ions of the pigment ink is 10 ppm or more, and the potassium ion concentration of the dye ink is 50 ppm or less.
Claims18
An aqueous ink set for ink jet recording comprising:
- an aqueous pigment ink containing water and a pigment as a coloring agent;
- and
- an aqueous dye ink containing water and a dye as a coloring agent,
- wherein the concentration of the divalent metal ions of the pigment ink is 10 ppm or more, and
- the potassium ion concentration of the dye ink is 50 ppm or less.
2 more elements
Dependencies are inferred from the claim text.