Invention Grant
- Patent Title: Ink jet ink composition, ink pack, and ink jet printing method
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Application No.: US16580036Application Date: 2019-09-24
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Publication No.: US11639061B2Publication Date: 2023-05-02
- Inventor: Nao Kozaka , Yuki Wakushima , Yoshitaka Miyajima , Takeshi Yano , Chitae Hashizume
- Applicant: Seiko Epson Corporation
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: JPJP2018-178364 20180925
- Main IPC: C09D11/328
- IPC: C09D11/328 ; C09D11/38 ; D06P1/18 ; D06P1/645 ; B41J2/21 ; B41J2/175 ; B41M5/00 ; B41J2/01 ; C09D11/322
Abstract:
An ink jet ink composition contains a dye having an azo group, water, and a hindered amine compound having a radical. The dissolved nitrogen concentration of the ink composition is 10 ppm or less.
Public/Granted literature
- US20200095443A1 Ink Jet Ink Composition, Ink Pack, And Ink Jet Printing Method Public/Granted day:2020-03-26
Information query
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