公开(公告)号：US20230167320A1

公开(公告)日：2023-06-01

申请号：US17993022

申请日：2022-11-23

Applicant: SEIKO EPSON CORPORATION

Inventor： Takuya TAKAHASHI ,  Yusuke MIZUTAKI ,  Miki UCHIDA

IPC: C09D11/324 ,  C09D11/38 ,  C09D11/033 ,  B41M5/00

CPC classification number: C09D11/324 ,  B41M5/0023 ,  C09D11/033 ,  C09D11/38

Abstract: An ink jet ink composition is a water-based ink which contains a colorant; inorganic oxide particles; a watersoluble silicate; and water, and a content of the watersoluble silicate with respect to a total mass of the ink is 0.5 percent by mass or less.

公开(公告)号：US20190276693A1

公开(公告)日：2019-09-12

申请号：US16293921

申请日：2019-03-06

Applicant: Seiko Epson Corporation

Inventor： Kunihiro FUJITA ,  Takuya TAKAHASHI ,  Yusuke MIZUTAKI

IPC: C09D11/322 ,  B41M5/00 ,  C09D11/037 ,  C09D11/033 ,  C09D11/107 ,  C09D11/102

Abstract: Provided is an ink-jet ink composition for a pressure-adhesion recording target medium. The ink-jet ink composition contains a pigment, a resin, an organic solvent, a surfactant, and water.

公开(公告)号：US20180298214A1

公开(公告)日：2018-10-18

申请号：US15950540

申请日：2018-04-11

Applicant: Seiko Epson Corporation

Inventor： Takuya TAKAHASHI ,  Kunihiro FUJITA ,  Yusuke MIZUTAKI

IPC: C09D11/033 ,  C09D11/324 ,  B41J2/155

CPC classification number: C09D11/033 ,  B41J2/14201 ,  B41J2/155 ,  C09D11/324 ,  C09D11/38

Abstract: An aqueous ink jet ink composition contains a pigment, propylene glycol, and water, in which the aqueous ink jet ink composition has the viscosity of 3.0 mm2/s or more and 10.0 mm2/s or less at 20° C., the aqueous ink jet ink composition has the pH of 7 or more, the content of the pigment is 5.5% by mass or more and 9% by mass or less based on the total amount of the aqueous ink jet ink composition, and the content of the propylene glycol is 8 parts by mass or more and 100 parts by mass or less based on 100 parts by mass of the pigment.