发明名称 |
Water based ink for ink jet recording and ink jet recording method |
摘要 |
A water-based ink for ink-jet recording enables the expression of sharp text and lines in high density black, and the formation of a high quality gradation image in which the graininess is reduced in a black image of medium to high lightness. The inks include a color ink (A) and a color ink (B) each of which independently has a lightness index L* according to the L* a* b* calorimetric system of about 60 or less. The color ink (A) and the color ink (B) satisfy the following expression (I): about 120°≦̸|α−&bgr;| about ≦̸240°  (I) wherein α is the hue angle of the color ink (A) and &bgr; is the hue angle of the color ink (B). The chroma C* of a hue obtained by the combination of the color ink (A) and the color ink (B) is about 30 or less.
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申请公布号 |
US7753999(B2) |
申请公布日期 |
2010.07.13 |
申请号 |
US20060279582 |
申请日期 |
2006.04.13 |
申请人 |
BROTHER KOGYU KABUSHIKI KAISHA |
发明人 |
SUGIMOTO JUNICHIRO;TSUDA MASASHI;KATO RYUJI;KOGA NARUMI;FUJIOKA MASAYA;HIGASHIYAMA SHUNICHI |
分类号 |
C09D11/02 |
主分类号 |
C09D11/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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