Water-soluble dye composition and recording liquid containing the same
    1.
    发明授权
    Water-soluble dye composition and recording liquid containing the same 失效
    水溶性染料组合物和含有它的记录液

    公开(公告)号:US4765838A

    公开(公告)日:1988-08-23

    申请号:US895441

    申请日:1986-08-11

    IPC分类号: C09D11/00 C09D11/02 C09D11/16

    CPC分类号: C09D11/17 C09D11/328

    摘要: A black recording liquid suitable for use in ink-jet recording or as an ink for writing instruments comprises at least two water-soluble dyes and a liquid medium. Each of the dyes satisfies the condition defined by the following expression [I], and a mixture of these dyes satisfies the condition defined by the following expression [II]. ##EQU1## In these expressions, a* and b* are chromaticness indices defined in the CIE 1976 (L*, a*, b*) space, i indicates the ith dye of the dyes used together, and n is an integer of 2 or more.

    摘要翻译: 适合用于喷墨记录的黑色记录液体或用于书写工具的油墨包括至少两种水溶性染料和液体介质。 每种染料都满足由以下表达式[I]定义的条件,并且这些染料的混合物满足由以下表达式[II]定义的条件。 在这些表达式中,a *和b *是CIE 1976(L *,a *,b *)空间中定义的色度指标,i表示所用染料的第i种染料 一起,n为2以上的整数。