| 发明名称 | Water-based ink for ink-jet recording and cartridge | ||
| 摘要 | A water-based ink for ink-jet recording includes a self-dispersible pigment modified by phosphate group; water; a water-soluble organic solvent; at least one of a cationic polymer and basic amino acid; and at least one selected from the group consisting of boric acids, a chelate agent, a reducing sugar and a sugar alcohol. | ||
| 申请公布号 | US8759419(B2) | 申请公布日期 | 2014.06.24 |
| 申请号 | US201213599581 | 申请日期 | 2012.08.30 |
| 申请人 | Brother Kogyo Kabushiki Kaisha | 发明人 | Okuda Satoshi;Sugimoto Junichiro;Hoshi Tatsunosuke;Nakamura Atsushi;Maeda Mitsunori |
| 分类号 | C09D11/00;C08K3/00;C08F8/30 | 主分类号 | C09D11/00 |
| 代理机构 | Banner & Witcoff, Ltd. | 代理人 | Banner & Witcoff, Ltd. |
| 主权项 | 1. A water-based ink for ink-jet recording comprising: a self-dispersible pigment modified by phosphate group; water; a water-soluble organic solvent; an additive selected from the group consisting of boric acids, a chelate agent, a reducing sugar, a sugar alcohol, and combinations thereof; and a cationic polymer contained in an amount ranging from 0.005% by weight to 0.03% by weight based on a total weight of the water-based ink, wherein the cationic polymer is selected from the group consisting of general formula (1), general formula (3), and combinations thereof; wherein general formula (1) is given by: where R1 and R2 are independently a hydrogen atom or organic group, and n is a positive integer; and wherein general formula (3) is given by: where p is an integer of 2 to 6 and q is an integer of 20 to 40. | ||
| 地址 | Nagoya, Aichi JP | ||