发明授权
US09309427B2 Ink composition, ink cartridge, inkjet recording device, and inkjet printed matter
有权
油墨组合物，墨盒，喷墨记录装置和喷墨印刷品
- 专利标题： Ink composition, ink cartridge, inkjet recording device, and inkjet printed matter
- 专利标题（中）： 油墨组合物，墨盒，喷墨记录装置和喷墨印刷品
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申请号： US14456287申请日： 2014-08-11
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公开(公告)号： US09309427B2公开(公告)日： 2016-04-12
- 发明人: Akihiko Matsuyama , Mitsuru Naruse , Masayasu Nonogaki , Kazukiyo Nagai , Keita Katoh , Yuusuke Koizuka
- 申请人： Akihiko Matsuyama , Mitsuru Naruse , Masayasu Nonogaki , Kazukiyo Nagai , Keita Katoh , Yuusuke Koizuka
- 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： Oblon, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2013-182828 20130904; JP2014-120565 20140611
- 主分类号： C09D11/322
- IPC分类号： C09D11/322 ; C08L43/02 ; C09D11/107 ; C09D11/326 ; C09D11/38
摘要：
An ink composition contains a pigment; a copolymer comprising a phosphoric acid group or phosphonic acid group; a hydrosoluble solvent; and water, wherein the pigment is represented by the following chemical formula 1 and satisfies the following relation 1: Y/X≦0.20 Relation 1 where X represents a peak intensity at a Bragg (2θ±0.2°) angle in a range of 2θ of from 26.5° to 27.5° and Y represents a peak intensity at a Bragg (2θ±0.2°) angle in a range of 2θ of from 11.0° to 11.5° to a CuKα X-ray having a wavelength of 1.541 Å.
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