| Application Number | 00128198 | Application Date | 2000.10.25 |
| Publication Number | 1297007 | Publication Date | 2001.05.30 |
| Priority Information | 1999/10/25 JP 302793/99 | ||
| International Classification |
C09D11/00 | ||
| Applicant(s) Name | Seiko Epson Corp. | ||
| Address | |||
| Inventor(s) Name | Kato Kenichi;Mukai Hiroshi | ||
| Patent Agency Code | 72001 | Patent Agent | lin changan |
| AbstractA water-soluble ink composition comprising an optimum combination of a direct dye and an acid dye and having a high chroma and excellent resistance to water and light, and an ink jet recording apparatus using the same are disclosed. A blue ink composition comprises (A) a xanthene magenta dye, (B) C.I. Direct Red 227, and (C) a copper phthalocyanine dye at an (A)/(C) weight ratio of 1:11 to 1:50. A red one comprises (A), (B), and (C) a yellow dye at an (A)/(C) weight ratio of 1:2 to 1:4. | |||