Invention Grant
US07988277B2 Ink set, ink jet recording method, ink cartridge, recording unit, ink jet recording method, and aqueous ink
有权
油墨组,喷墨记录方法,墨盒,记录单元,喷墨记录方法和水性油墨
- Patent Title: Ink set, ink jet recording method, ink cartridge, recording unit, ink jet recording method, and aqueous ink
- Patent Title (中): 油墨组,喷墨记录方法,墨盒,记录单元,喷墨记录方法和水性油墨
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Application No.: US12116343Application Date: 2008-05-07
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Publication No.: US07988277B2Publication Date: 2011-08-02
- Inventor: Kenji Moribe , Satoshi Kudo , Mikio Sanada , Hideki Yamakami
- Applicant: Kenji Moribe , Satoshi Kudo , Mikio Sanada , Hideki Yamakami
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2007-126633 20070511; JP2008-112758 20080423
- Main IPC: G01D11/00
- IPC: G01D11/00

Abstract:
An ink set is provided which can suppress bleeding irrespective of the type of recording medium. The ink set includes a plurality of aqueous inks each containing a dye, and has at least a first aqueous ink containing a dye, wherein the difference between the dynamic surface tension of the first aqueous ink at a lifetime of 50 milliseconds and the dynamic surface tension of the first aqueous ink at a lifetime of 500 milliseconds is 7 mN/m or more; and, between the first aqueous ink and at least one type of aqueous ink except the first aqueous ink included in the ink set, dynamic surface tension γa (mN/m) of an ink A having relatively higher lightness at a lifetime of 500 milliseconds and dynamic surface tension γb (mN/m) of an ink B having relatively lower lightness at a lifetime of 500 milliseconds satisfy −5≦(γa−γb)≦3.
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