| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an ink unit for which the ink discharging precision during storage is increased. <P>SOLUTION: This ink unit includes a liquid contact member which comes into contact with an ink which is used for an inkjet recording device. In the ink unit, the ink contains a phthalocyanine dye which has a specified structure, and of which the oxidation potential is 1.0 V (vs SCE) or higher. Also, the major component of the ink contact member is (1) a specified hydrotalcites compound, (2) a fatty acid and/or fatty acid derivatives, (3) a phenol based antioxidant having an isocyanurate skeleton, or (4) polyolefines containing alkylated benzylidene sorbitols. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
