| 发明名称 | Aqueous ink, ink cartridge and ink jet recording method | ||
| 摘要 | The invention provides an aqueous ink containing a coloring material, wherein the coloring material is a self-dispersible pigment in which a functional group containing another atomic group and an anionic group such as a carboxylic acid group, a sulfonic acid group, a phosphoric acid group or a phosphonic acid group are bonded to a particle surface of a pigment such as carbon black or an organic pigment, and a standard deviation of an introduced amount of the functional group is 0.0380 or less. | ||
| 申请公布号 | US9593250(B2) | 申请公布日期 | 2017.03.14 |
| 申请号 | US201514749820 | 申请日期 | 2015.06.25 |
| 申请人 | Canon Kabushiki Kaisha | 发明人 | Mizutani Takakazu;Suzuki Koichi;Higashi Ryuji;Watanabe Taiki |
| 分类号 | C09D11/322;C09C1/36;C09C1/56;C09C3/00;C09C3/06;C09C3/08;C09C1/02;C08K9/04 | 主分类号 | C09D11/322 |
| 代理机构 | Fitzpatrick, Cella, Harper & Scinto | 代理人 | Fitzpatrick, Cella, Harper & Scinto |
| 主权项 | 1. An aqueous ink comprising a coloring material, wherein the coloring material is a self-dispersible pigment in which a functional group comprising an anionic group and another atomic group are bonded to a particle surface of the pigment, and a standard deviation of an introduced amount of the functional group is 0.0380 or less. | ||
| 地址 | Tokyo JP | ||