| 发明名称 | Ink composition, recording method, printed matter, ink cartridge, and inkjet recording device | ||
| 摘要 | An ink composition contains a pigment represented by the following chemical formula 1; a hydrosoluble solvent; and water, wherein the pigment satisfies the following relation 1:0.040<Y/X<0.200 (Relation 1), where, in a CuKα X-ray diffraction spectrum having a wavelength of 1.541 Å, 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°:; | ||
| 申请公布号 | US9139749(B2) | 申请公布日期 | 2015.09.22 |
| 申请号 | US201314025241 | 申请日期 | 2013.09.12 |
| 申请人 | Ricoh Company, Ltd. | 发明人 | Matsuyama Akihiko;Naruse Mitsuru;Nonogaki Masayasu;Hakiri Minoru;Katoh Keita;Nagai Kazukiyo;Koizuka Yuusuke |
| 分类号 | C09D11/322;C09D11/326;B41J2/175 | 主分类号 | C09D11/322 |
| 代理机构 | Oblon, McClelland, Maier & Neustadt, L.L.P. | 代理人 | Oblon, McClelland, Maier & Neustadt, L.L.P. |
| 主权项 | 1. An ink composition comprising: a pigment represented by the following chemical formula 1; a hydrosoluble solvent; and water, wherein the pigment satisfies the following relation 1: 0.040<Y/X<0.200 Relation 1 where, in a CuKαX-ray diffraction spectrum having a wavelength of 1.541 Å, X represents a peak intensity at a Bragg (2θ±0.2°) angle in a range of 2θof from 26.5° to 27.5° and Y represents a peak intensity at a Bragg (2θ±0.2°) angle in a range of 2θof from 11.0° to 11.5°: and further comprising a compound represented by the following Chemical formula 3: where R1, R2, and R3 each, represent a hydrogen atom or a methyl group, R4 and R5 each, represent an NH2 group, a benzyl group, and a stearyl group, p, q, and r each, represent integers of from 5 to 50, and B2 represents a COOM2 or an SO3M2, where M2 represents Na, K, ammonium, tetramethyl ammonium, or ethanol amine. | ||
| 地址 | Tokyo JP | ||