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    INK SET FOR INK JET RECORDING
    13.
    发明专利
    INK SET FOR INK JET RECORDING 未知

    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

    Inventor： TAKIZAWA YOSHIHISA ,  MAFUNE KUMIKO ,  TAKUHARA HIROYUKI ,  TERAOKA HISASHI ,  TAKADA YOICHI ,  YAKUSHIGAWA YUKO ,  ASAKI NORIYASU ,  KANKE TSUYOSHI

    IPC: C09D11/02 ,  C09D11/00 ,  B41J2/21

    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.

    16.
    发明专利
    未知

    公开(公告)号：DE60135959D1

    公开(公告)日：2008-11-13

    申请号：DE60135959

    申请日：2001-09-03

    Applicant: CANON KK

    Inventor： ASAKI NORIYASU ,  KIGAMI HIROYUKI ,  OZAKI TERUO ,  HIROKI TAJIMA

    IPC: B41J2/175 ,  B41J2/14 ,  B41J2/165 ,  B41J2/21

    Abstract: A method of preserving a recording head which includes an ink flow path by which the ink is supplied and a discharge port in communication with the ink flow path to discharge the ink supplied into the ink flow path; is connected to an ink tank in the recording apparatus in such a way to be removably attached to or detached from the ink tank, to allow the ink to be discharged from the discharge port; and uses a reactive ink as the recording ink containing a colorant and reactive component reactive with another ink, comprises a step of examining discharging conditions of the recording head using an ink for examination of a composition free of the reactive component, which is supplied into the ink flow path, and a step of step of preserving the recording head for preservation by replacing the ink for examination remaining in the ink flow path in the recording head by an ink for preservation containing neither the colorant nor reactive component, after the step of examining discharging conditions is over.

    17.
    发明专利
    未知

    公开(公告)号：DE60134095D1

    公开(公告)日：2008-07-03

    申请号：DE60134095

    申请日：2001-09-03

    Applicant: CANON KK

    Inventor： KATO MASAO ,  MATSUMOTO NOBUYUKI ,  GOTOH FUMIHIRO ,  YAMADA AKITOSHI ,  SUWA TETSUYA ,  TAKADA YOICHI ,  ASAKI NORIYASU

    IPC: B41J2/21 ,  C09D11/00

    Abstract: A reactive color ink that contains a metal ion and exhibits mutual reactivity with a black ink is applied in an area including a print area 1, which has been formed by applying the black ink on a recording medium, and an area surrounding the print area 1, a distance between an edge of the print area 1 and an outer edge of the surrounding area being up to four pixels. This ink application is performed so that a value at least equal to 0.01 is obtained from a calculation where (a metal ion concentration (% by weight) in the reactive color ink applied in the area including the print area 1 and the surrounding area) is multiplied by (a print duty (%) of the reactive color ink applied in the area including the print area 1 and the surrounding area).

    18.
    发明专利
    未知

    公开(公告)号：DE60123697T2

    公开(公告)日：2007-08-30

    申请号：DE60123697

    申请日：2001-04-25

    Applicant: CANON KK

    Inventor： ARA YOHJI ,  INOUE HIROYUKI ,  FUKAZAWA HIDEO ,  KURATA TETSUJI ,  HIRANO HIROFUMI ,  NETSU HIROSHI ,  OKAMOTO HIDEAKI ,  UETSUKI MASAYA ,  HAYASHI HIROKI ,  ASAKI NORIYASU

    IPC: B41J2/175 ,  B41J2/18 ,  B41J2/185

    Abstract: An ink tank (20) has a fixed-negative-pressure generating means (31, 106) between a gas-liquid separating means (48) and a source (31) of negative pressure required to suck and supply the ink, to prevent a fixed amount or more of negative pressure from being exerted on the gas-liquid separating means (48). An ink jet recording head (20a) is installed on the ink tank (20). An ink jet cartridge is also installed on the ink tank (20). An ink jet recording apparatus has an ink tank (20) which supplies an ink to an ink jet recording head (20a) via an ink supplying port (205), a gas-liquid separating means (48) in a suction port (53) transmitting gases therethrough while not transmitting said ink therethrough, and a fixed-negative-pressure generating means (31, 106) between the gas-liquid separating means (48) and a source (31) of the negative pressure.

    19.
    发明专利
    未知

    公开(公告)号：DE60123697D1

    公开(公告)日：2006-11-23

    申请号：DE60123697

    申请日：2001-04-25

    Applicant: CANON KK

    Inventor： ARA YOHJI ,  INOUE HIROYUKI ,  FUKAZAWA HIDEO ,  KURATA TETSUJI ,  HIRANO HIROFUMI ,  NETSU HIROSHI ,  OKAMOTO HIDEAKI ,  UETSUKI MASAYA ,  HAYASHI HIROKI ,  ASAKI NORIYASU

    IPC: B41J2/175 ,  B41J2/18 ,  B41J2/185

    Abstract: An ink tank (20) has a fixed-negative-pressure generating means (31, 106) between a gas-liquid separating means (48) and a source (31) of negative pressure required to suck and supply the ink, to prevent a fixed amount or more of negative pressure from being exerted on the gas-liquid separating means (48). An ink jet recording head (20a) is installed on the ink tank (20). An ink jet cartridge is also installed on the ink tank (20). An ink jet recording apparatus has an ink tank (20) which supplies an ink to an ink jet recording head (20a) via an ink supplying port (205), a gas-liquid separating means (48) in a suction port (53) transmitting gases therethrough while not transmitting said ink therethrough, and a fixed-negative-pressure generating means (31, 106) between the gas-liquid separating means (48) and a source (31) of the negative pressure.

    20.
    发明专利
    未知

    公开(公告)号：DE60116820T2

    公开(公告)日：2006-08-31

    申请号：DE60116820

    申请日：2001-09-03

    Applicant: CANON KK

    Inventor： TAKUHARA HIROYUKI ,  TAKIZAWA YOSHIHISA ,  MAFUNE KUMIKO ,  TERAOKA HISASHI ,  TAKADA YOICHI ,  ASAKI NORIYASU ,  TAKADA YUKO ,  KANKE TSUYOSHI

    IPC: C09D11/00 ,  C09D11/02

    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.

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