31.
    发明专利
    未知

    公开(公告)号:DE60131326T2

    公开(公告)日:2008-09-04

    申请号:DE60131326

    申请日:2001-06-21

    Applicant: CANON KK

    Abstract: An ink set includes inks each containing a colorant and an aqueous medium, wherein in a fading test under conditions that cause fading corresponding to pseudo-indoor sunlight fading through a window for 3 years or more, the difference between respective images' ”E, the images being produced with the respective inks, is 10 or less in a CIELAB color space display system, and each of the images has a residual ratio of reflection density of 70% or more. By using the ink set including the color inks with which images having substantially the same fading ”E after long-term storage are produced, the color balance of a recorded image can be maintained after long-term storage.

    34.
    发明专利
    未知

    公开(公告)号:AT316553T

    公开(公告)日:2006-02-15

    申请号:AT01121094

    申请日:2001-09-03

    Applicant: CANON KK

    Abstract: An ink set which comprises a black ink containing an aqueous medium and a pigment dispersed in the aqueous medium by an action of an ionic group, and at least two color inks each containing a coloring material and an aqueous medium, wherein (i) respective images formed with the respective color inks have the same DELTA E or have the difference in DELTA E that is 10 or less in a CIELAB color space display system in a fading test under conditions that cause fading corresponding to pseudo-indoor sunlight fading through a window for 3 years or more, and (ii) at least one of the color inks contains at least one of a coloring material and an additive that destabilize dispersion stability of the pigment in the black ink. The ink set can provide a high quality multicolor image keeping color balance after long preservation and showing less bleeding between black and color regions.

    INK SET FOR INK JET RECORDING
    39.
    发明专利

    公开(公告)号:CA2356809A1

    公开(公告)日:2002-03-04

    申请号:CA2356809

    申请日:2001-08-30

    Applicant: CANON KK

    Abstract: An ink set which comprises a black ink containing an aqueous medium and a pigment dispersed in the aqueous medium by an action of an ionic group, and at least two color inks each containing a coloring material and an aqueous medium, wherein (i) respective images formed with the respective color inks have the same .DELTA.E or have the difference in .DELTA.E that is 10 or less in a CIELAB color space display system in a fading test under conditions that cause fading corresponding to pseudo-indoor sunlight fading through a window for 3 years or more, and (11) at least one of the color inks contains at least one of a coloring material and an additive that destabilize dispersion stability of the pigment in the black ink. The ink set can provide a high quality multicolor image keeping color balance after long preservation and showing less bleeding between black and color regions.

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