- 专利标题： Ink and printing method
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申请号： US16888903申请日： 2020-06-01
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公开(公告)号： US11186737B2公开(公告)日： 2021-11-30
- 发明人: Tomohiro Nakagawa , Hiroki Hagiwara , Yuutaroh Nonaka , Kazuhiko Umemura
- 申请人： RICOH COMPANY, LTD.
- 申请人地址： JP Tokyo
- 专利权人： RICOH COMPANY, LTD.
- 当前专利权人： RICOH COMPANY, LTD.
- 当前专利权人地址： JP Tokyo
- 代理机构： Grüneberg and Myers PLLC
- 优先权： JPJP2019-105437 20190605,JPJP2019-203735 20191111
- 主分类号： C09D11/322
- IPC分类号： C09D11/322 ; B41M5/00 ; C09B29/28 ; C09D11/033 ; C09D11/037 ; C09D11/38 ; D06P5/30 ; D21H19/42 ; D21H19/46 ; B41J2/21 ; B41J2/01
摘要：
An ink includes water, a compound represented by the following Chemical formula 1, Pigment Red 269 represented by the following Chemical formula 2, and alkylene glycol alkyl ether, wherein the proportion of the compound represented by the following Chemical formula 1 in a total amount of the Pigment Red 269 is 2 or less percent by mass.
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