- 专利标题： Ink, method for producing ink, ink storage container, recording device, and recording method
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申请号： US15601283申请日： 2017-05-22
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公开(公告)号： US10011729B2公开(公告)日： 2018-07-03
- 发明人: Yoshiki Yanagawa , Takuya Yamazaki , Takahiro Yoshida
- 申请人： Yoshiki Yanagawa , Takuya Yamazaki , Takahiro Yoshida
- 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： JP2016-105052 20160526; JP2016-173907 20160906; JP2016-247626 20161221
- 主分类号： C09D11/322
- IPC分类号： C09D11/322 ; C09D11/32 ; C09D11/326 ; B41J2/015 ; B41J2/135 ; B41J2/315 ; C09D11/324 ; C09D11/02
摘要：
An ink is provided. The ink includes a quinacridone pigment and an organic solvent having a solubility parameter of from 9.00 to 11.80 in an amount of from 30% to 60% by mass of total mass of the ink. Both a viscosity change rate and a particle diameter change rate of the ink, before and after the ink is heated at 80° C. for 4 weeks in a sealed state, are in the range of from −5% to 1%.
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