- 专利标题: AQUEOUS INK, INK CARTRIDGE AND INK JET RECORDING METHOD
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申请号: US15910097申请日: 2018-03-02
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公开(公告)号: US20180258298A1公开(公告)日: 2018-09-13
- 发明人: Kenichi Shiiba , Kenji Moribe , Daiji Okamura , Kousuke Yamasaki
- 申请人: CANON KABUSHIKI KAISHA
- 优先权: JP2017-045708 20170310
- 主分类号: C09D11/322
- IPC分类号: C09D11/322 ; C09D11/037 ; C09D11/102 ; B41M5/00 ; B41J2/175
摘要:
To provide an aqueous ink for ink jet enabling the recording of an image having excellent character quality and excellent highlighter resistance immediately after the recording. An aqueous ink for ink jet includes a pigment and a urethane resin. The urethane resin has a unit derived from a polyisocyanate, a unit derived from a polyol having no acid group and a unit derived from a polyol having an acid group, the proportion of a unit derived from the polyol having an acid group present at the molecular terminal relative to the whole unit derived from the polyol having an acid group is 30% or less, and the aqueous ink has a dynamic surface tension of 55 mN/m or more at a lifetime of 10 msec.
公开/授权文献
- US10253197B2 Aqueous ink, ink cartridge and ink jet recording method 公开/授权日:2019-04-09