公开(公告)号：US12091562B2

公开(公告)日：2024-09-17

申请号：US17042067

申请日：2019-02-06

申请人： Seiko Epson Corporation

发明人： Kei Hiruma ,  Homare Kuribayashi ,  Shotaro Watanabe ,  Koji Imamura ,  Masato Hanamura ,  Jungo Asano

IPC分类号： C09D11/00 ,  C08K3/08 ,  C08K5/092 ,  C09D11/328 ,  C09D11/38 ,  D06P5/00 ,  D06P5/30

CPC分类号： C09D11/328 ,  C08K3/08 ,  C08K5/092 ,  C09D11/38 ,  D06P5/002 ,  D06P5/30 ,  C08K2003/0818

摘要： A composition for aqueous ink contains water and a coloring material, wherein the calcium ion content x (ppm) and the oxalate ion content y (ppm) in the composition for aqueous ink jet satisfy the relation of y≤3491.8x−3.386.

公开(公告)号：US11976204B2

公开(公告)日：2024-05-07

申请号：US17042077

申请日：2019-02-06

申请人： Seiko Epson Corporation

发明人： Homare Kuribayashi ,  Shotaro Watanabe ,  Kei Hiruma ,  Masato Hanamura ,  Koji Imamura ,  Jungo Asano

IPC分类号： C09D11/328 ,  C08K5/42 ,  C09D11/38

CPC分类号： C09D11/328 ,  C08K5/42 ,  C09D11/38

摘要： A composition for aqueous ink jet contains a specific dye which is one or more coloring materials selected from the group consisting of C. I. Acid Black 172 and C. I. Acid Black 194, and a specific aromatic compound which is at least one compound selected from the group consisting of compounds represented by formulae (1) to (4) below. The content of the specific aromatic compound relative to 100 parts by mass of the specific dye is 0.2 parts by mass or more and 50 parts by mass or less.

公开(公告)号：US11161352B2

公开(公告)日：2021-11-02

申请号：US16658509

申请日：2019-10-21

申请人： Seiko Epson Corporation

发明人： Koji Imamura ,  Homare Kuribayashi ,  Shotaro Watanabe ,  Kei Hiruma ,  Masato Hanamura ,  Jungo Asano

IPC分类号： B41J3/407 ,  C09D11/324 ,  C09D11/328 ,  B41J2/21 ,  B41J2/01

摘要： An ink jet textile printing ink contains 5% by mass to 20% by mass of a water-soluble dye, water, a water-soluble organic solvent, and active carbon particles. The active carbon particles include particles having a particle size of 50 nm to 1000 nm, and the active carbon particles having the particle size of 50 nm to 1000 nm are contained in a proportion of 500 to 300000 particles per milliliter. Also, the active carbon particles may include particles having a particle size of 50 nm to 200 nm, and the active carbon particles having a particle size of 50 nm to 200 nm may be contained in a proportion of 2000 to 30000 particles per milliliter. The active carbon particles may have an average particle size in the range of 100 nm to 600 nm.