发明名称 Ink set containing at least three black ink compositions
摘要 The present invention provides an ink set comprising at least three black ink compositions different in concentration, wherein the colorant of the black ink composition having the highest concentration is a pigment, the colorant of the black ink composition having the lowest concentration is a dye, and the colorant(s) of the black ink composition(s) for medium gradation having medium concentration between them is a pigment or dye.
申请公布号 US2007109377(A1) 申请公布日期 2007.05.17
申请号 US20060589679 申请日期 2006.10.30
申请人 SEIKO EPSON CORPORATION 发明人 SANO TSUYOSHI
分类号 G01D11/00 主分类号 G01D11/00
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