- 专利标题: Inkjet recording ink and ink cartridge using the ink, inkjet recording apparatus, inkjet recording method and ink recording matter
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申请号: US14202284申请日: 2014-03-10
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公开(公告)号: US09688871B2公开(公告)日: 2017-06-27
- 发明人: Masayasu Nonogaki , Keita Katoh , Minoru Hakiri , Mitsuru Naruse , Akihiko Matsuyama , Kazukiyo Nagai , Yuusuke Koizuka , Nobuyuki Sakamoto , Yosuke Matsuoka , Masatomo Takahashi
- 申请人: Masayasu Nonogaki , Keita Katoh , Minoru Hakiri , Mitsuru Naruse , Akihiko Matsuyama , Kazukiyo Nagai , Yuusuke Koizuka , Nobuyuki Sakamoto , Yosuke Matsuoka , Masatomo Takahashi
- 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: Cooper & Dunham LLP
- 优先权: JP2013-051457 20130314; JP2013-051460 20130314
- 主分类号: C09D11/32
- IPC分类号: C09D11/32 ; C09D11/324 ; C09D11/322 ; C09D11/326
摘要:
An inkjet recording ink, including: water; a water-soluble solvent; a pigment; and a phosphate group-containing copolymer, wherein the phosphate group-containing copolymer includes a structural unit represented by the following general formula (1) and a structural unit represented by the following general formula (2): wherein, in the general formula (1), R1 represents either of a hydrogen atom and a methyl group; and M+ represents any of an alkali metal ion, an organic amine ion and a hydrogen ion, one-half or more of the M+ in the copolymer is an alkali metal ion or an organic amine, and the remainder is a hydrogen ion; wherein, in the general formula (2), R2 represents either of a hydrogen atom and a methyl group.
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