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    32.
    发明专利
    未知

    公开(公告)号：DE60329234D1

    公开(公告)日：2009-10-22

    申请号：DE60329234

    申请日：2003-06-26

    Applicant: CANON KK

    Inventor： NAGASHIMA AKIRA ,  UDAGAWA MASAKO

    IPC: B41J2/01 ,  B41J2/14 ,  B41M5/00 ,  C09D11/00 ,  C09D11/322 ,  C09D11/40

    Abstract: An aqueous ink containing at least a water-dispersible coloring material and a water-soluble crystalline component, characterized in that the water-dispersible coloring material forms an aggregate around a crystal of the crystalline component formed as the content of the aqueous ink decreases, which ink may further contain a water-soluble coloring material.

    WATER-BASED FLUORESCENT INK, RECORDED IMAGE USING THE SAME, AND JUDGING METHOD
    33.
    发明专利
    WATER-BASED FLUORESCENT INK, RECORDED IMAGE USING THE SAME, AND JUDGING METHOD 未知

    公开(公告)号：CA2523885C

    公开(公告)日：2009-09-22

    申请号：CA2523885

    申请日：2003-06-26

    Applicant: CANON KK

    Inventor： UDAGAWA MASAKO ,  KOIKE SHOJI ,  AOKI MAKOTO ,  NAGASHIMA AKIRA ,  HAKAMADA SHINICHI

    IPC: B41J2/01 ,  B41M3/14 ,  C09D11/00 ,  C09K11/06

    Abstract: The present invention relates to a water-based fluorescent ink for the purpose of measurement or judgment of the fluorescence emission in a visible light region by an excitation wavelength in a predetermined ultraviolet range, containing water, a coloring material dissolved or dispersed in water, and an organic solvent, having a plurality of fluorescent groups in the coloring material structure of the coloring material, and using a water-soluble coloring material having a sulfonic acid group as the water-soluble group in the state of a free acid, capable of improving the water resistance and the light resistance, dramatically increasing the content of the fluorescent coloring material in the ink, which has conventionally been included only by a small amount in the ink due to the concentration quenching problem, obtaining preferable fluorescence emission and water resistance of the recorded image, and providing preferable adhesion resistance to the recording medium of the coloring material and reliability.

    AQUEOUS FLUORESCENT INK, RECORDED IMAGE USING SAME, AND JUDGING METHOD
    37.
    发明专利
    AQUEOUS FLUORESCENT INK, RECORDED IMAGE USING SAME, AND JUDGING METHOD 未知

    公开(公告)号：AU2003243975A1

    公开(公告)日：2004-11-23

    申请号：AU2003243975

    申请日：2003-06-26

    Applicant: CANON KK

    Inventor： AOKI MAKOTO ,  NAGASHIMA AKIRA ,  HAKAMADA SHINICHI ,  UDAGAWA MASAKO ,  KOIKE SHOJI

    IPC: B41J2/01 ,  B41M3/14 ,  C09D11/00 ,  C09D11/02 ,  B41M5/00

    Abstract: The present invention provides a fluorescence ink having a high fluorescence intensity, and an ink jet recording method using the same. The ink contains a first fluorescent coloring material that emits fluorescence at a predetermined fluorescence wavelength to be used for measurement or determination with excitation at a predetermined excitation wavelength, a second fluorescent coloring material that emits fluorescence on excitation at the predetermined excitation wavelength, where the excitation spectrum of the first coloring material in the ink to obtain the fluorescence at the predetermined emission wavelength has a peak wavelength range next to the predetermined fluorescence wavelength, and the emission fluorescence spectrum of the second coloring material has an emission wavelength region substantially including at least the above peak wavelength range.

    FLUORESCENT INK FOR INK JET, INK JET RECORDING METHOD, INK CARTRIDGE, RECORDING UNIT AND INK JET RECORDING APPARATUS
    40.
    发明专利
    FLUORESCENT INK FOR INK JET, INK JET RECORDING METHOD, INK CARTRIDGE, RECORDING UNIT AND INK JET RECORDING APPARATUS 审中-公开

    公开(公告)号：JP2003192962A

    公开(公告)日：2003-07-09

    申请号：JP2001397242

    申请日：2001-12-27

    Applicant: CANON KK

    Inventor： HAKAMATA SHINICHI ,  UDAGAWA MASAKO ,  AOKI ATSUSHI ,  KOIKE SHOJI

    IPC: B41J2/01 ,  B41J2/175 ,  B41M5/00 ,  C09D11/00 ,  C09D11/328

    Abstract: PROBLEM TO BE SOLVED: To provide a fluorescent ink capable of maintaining high fluorescence intensity, and to provide an ink jet recording method, an ink unit, an ink cartridge and an ink jet recording apparatus using the ink. SOLUTION: The fluorescent ink for ink jet contains a first dye, a second dye and a water-soluble liquid medium for dissolving these dyes. The first dye has an absorption wavelength region and a peak emission wavelength of fluorescence in the visible region, and an absorption wavelength region in the ultraviolet region. The second dye (1) has an absorption wavelength region overlapping with at least part of the absorption wavelength region in the ultraviolet region of the first dye in the ultraviolet region, and (2) has an absorption wavelength region and an emission wavelength region of fluorescence in the visible region, and has the peak emission wavelength of fluorescence of the first dye in the emission wavelength region. COPYRIGHT: (C)2003,JPO

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