Invention Grant
US07947762B2 Aqueous ink, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus
失效
水性墨水,喷墨记录方法,墨盒,记录单元和喷墨记录装置
- Patent Title: Aqueous ink, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus
- Patent Title (中): 水性墨水,喷墨记录方法,墨盒,记录单元和喷墨记录装置
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Application No.: US12562733Application Date: 2009-09-18
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Publication No.: US07947762B2Publication Date: 2011-05-24
- Inventor: Masako Udagawa , Shinichi Hakamada , Takashi Imai , Kenji Moribe
- Applicant: Masako Udagawa , Shinichi Hakamada , Takashi Imai , Kenji Moribe
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2005-314709 20051028
- Main IPC: C09D11/00
- IPC: C09D11/00 ; B01J13/00

Abstract:
The invention provides an aqueous ink comprising a polymer having hydroxyl groups and a pigment, which can provide images excellent in scratch resistance and highlighter resistance and can inhibit the seeping out phenomenon of the polymer and the deterioration of storage stability and ejection characteristics even when it is stored for a long period of time. The aqueous ink comprises a polymer having hydroxyl groups and a pigment, wherein a proportion of a content of a polymer that is not adsorbed on the pigment out of the polymer having hydroxyl groups to the content of the pigment in the ink is 2.0 mass % or more, and a content (mass %) of the polymer that is not adsorbed on the pigment out of the polymer having hydroxyl groups is 0.20 mass % or less based on the total mass of the ink.
Public/Granted literature
- US20100010157A1 AQUEOUS INK, INK JET RECORDING METHOD, INK CARTRIDGE, RECORDING UNIT AND INK JET RECORDING APPARATUS Public/Granted day:2010-01-14
Information query
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