1.
    发明专利
    未知

    公开(公告)号:DE60303072D1

    公开(公告)日:2006-03-30

    申请号:DE60303072

    申请日:2003-09-16

    Applicant: CANON KK

    Abstract: A reaction solution to be used for image recording with an ink containing a coloring material in a dissolved or dispersed state in order to achieve a high level of image density with stability, wherein the reaction solution contains a polyvalent metal ion and an organic solvent to destabilize the dissolved or dispersed state of the coloring material in the ink in contact with the ink, has a pH of 2 or higher, and has a buffering action for pH, wherein the buffering action means it can maintain pH variation within the range of 0.5 before and after the addition of 1.0 ml of a 0.1 N aqueous lithium hydroxide solution to 50 ml of the reaction solution.

    2.
    发明专利
    未知

    公开(公告)号:AT314936T

    公开(公告)日:2006-02-15

    申请号:AT03020941

    申请日:2003-09-16

    Applicant: CANON KK

    Abstract: A reaction solution to be used for image recording with an ink containing a coloring material in a dissolved or dispersed state in order to achieve a high level of image density with stability, wherein the reaction solution contains a polyvalent metal ion and an organic solvent to destabilize the dissolved or dispersed state of the coloring material in the ink in contact with the ink, has a pH of 2 or higher, and has a buffering action for pH, wherein the buffering action means it can maintain pH variation within the range of 0.5 before and after the addition of 1.0 ml of a 0.1 N aqueous lithium hydroxide solution to 50 ml of the reaction solution.

    10.
    发明专利
    未知

    公开(公告)号:AT470693T

    公开(公告)日:2010-06-15

    申请号:AT05755859

    申请日:2005-06-28

    Applicant: CANON KK

    Abstract: A cyan ink applicable to an ink set has multiple aqueous inks each containing at least: water; a water-insoluble coloring material; and multiple water-soluble organic solvents including a good solvent with respect to the water-insoluble coloring material and a poor solvent with respect to the water-insoluble coloring material. A ratio of a poor solvent to a good solvent in the cyan ink is in a specific range. A water-soluble organic solvent showing the maximum Ka value out of respective Ka values of the multiple water-soluble organic solvents is the poor solvent. A ratio of a poor solvent to a good solvent in an arbitrary aqueous ink in the ink set except the cyan ink and the ratio of the poor solvent to the good solvent in the cyan ink satisfy a specific relationship.

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