| 发明名称 |
AQUEOUS INK, INK CARTRIDGE AND INK JET RECORDING METHOD |
| 摘要 |
The invention provides an aqueous ink containing a self-dispersible pigment having a carboxylic acid group bonded directly or through another atomic group to a particle surface of a pigment and a lactone group bonded to the particle surface of the pigment, wherein, as determined by a selective neutralization method, an introduced amount of the carboxylic acid group is 0.60 mmol/g or more and a ratio of an introduced amount (mmol/g) of the lactone group to the introduced amount (mmol/g) of the carboxylic acid group is 0.20 time or less. |
| 申请公布号 |
US2015376428(A1) |
申请公布日期 |
2015.12.31 |
| 申请号 |
US201514749933 |
申请日期 |
2015.06.25 |
| 申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
Sanada Mikio;Watanabe Taiki;Higashi Ryuji;Suzuki Koichi |
| 分类号 |
C09D11/324 |
主分类号 |
C09D11/324 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An aqueous ink comprising a self-dispersible pigment having a carboxylic acid group bonded directly or through another atomic group to a particle surface of a pigment and a lactone group bonded to the particle surface of the pigment, wherein, as determined by a selective neutralization method, an introduced amount of the carboxylic acid group is 0.60 mmol/g or more and a ratio of an introduced amount (mmol/g) of the lactone group to the introduced amount (mmol/g) of the carboxylic acid group is 0.20 time or less. |
| 地址 |
Tokyo JP |
