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    INKJET INK
    22.
    发明公开
    INKJET INK 审中-公开

    公开(公告)号：EP3838996A1

    公开(公告)日：2021-06-23

    申请号：EP20211993.9

    申请日：2020-12-04

    申请人： General Co., Ltd.

    发明人： TAKEMOTO, Hidehiro

    IPC分类号： C09D11/36 ,  C09D11/328 ,  C09D11/102 ,  C09D11/104

    摘要： The present invention provides an inkjet ink that contains a metal complex dye, a polyoxyethylene based compound with which a number average molecular weight Mn is not less than 200, a tackifier with which a hydroxyl value is 30 to 70 mgKOH/g, a first solvent of at least one type selected from a group consisting of ketones, ethers, and esters and with which an SP value is less than 11, and a second solvent being an alcohol including at least an alcohol with 1 to 3 carbon atoms and with which the SP value is not less than 11 and is solvent based and does not contain (excludes) water, is unlikely to cause cogation, is also excellent in intermittent printing performance, and yet enables a character of excellent fixing property and abrasion resistance to be printed on a surface of a printing object with a non-absorbing property.

    THERMOCHROMIC INK COMPOSITION FOR INK JET PRINTING
    24.
    发明公开
    THERMOCHROMIC INK COMPOSITION FOR INK JET PRINTING 审中-公开

    公开(公告)号：EP3816242A1

    公开(公告)日：2021-05-05

    申请号：EP19306420.1

    申请日：2019-10-31

    申请人： Dover Europe Sàrl

    发明人： SABYS, Jean-Yves ,  RIO, Virginie

    IPC分类号： C09D11/10 ,  C09D11/322 ,  C09D11/328 ,  C09D11/50

    摘要： Thermochromic ink composition for ink jet printing, liquid at room temperature, comprising:
    a) a solvent comprising one or several organic solvent compound(s);
    b) a binder, comprising at least one binding resin;
    c) a heat resistant, and water or steam resistant pigment;
    d) a heat sensitive, and water or steam sensitive, dye;
    wherein the pigment and the dye are selected so that the colour of the pigment and the colour of the dye are complementary in the colour spectrum, and wherein said heat sensitive, and water or steam sensitive dye is capable of undergoing decomposition upon exposure to both heat and water or steam so that the colour of the ink composition or of a marking printed using said ink composition changes to the colour of the heat resistant, and water or steam resistant pigment upon exposure to both heat and water or steam.
    Method for marking a substrate by spraying said ink composition onto this substrate, and substrate provided with a marking obtained by drying and/or absorption of said ink composition.
    Method of indicating sterilization or pasteurization or autoclaving of a substrate using said ink.

    AQUEOUS INK, INK CARTRIDGE AND INK JET RECORDING METHOD
    27.
    发明公开
    AQUEOUS INK, INK CARTRIDGE AND INK JET RECORDING METHOD 审中-公开

    公开(公告)号：EP3760680A1

    公开(公告)日：2021-01-06

    申请号：EP20182630.2

    申请日：2020-06-26

    申请人： CANON KABUSHIKI KAISHA

    发明人： OKAMURA, Daiji ,  MIYAMACHI, Naotoshi ,  KISHI, Hiromitsu ,  INUI, Keisuke ,  YUASA, Hirohiko ,  SHIMOMURA, Naofumi

    IPC分类号： C09D11/328 ,  C09D11/50 ,  C09D11/102 ,  C09D11/106 ,  C09D11/107

    摘要： The aqueous ink for ink jet contains a resin particle dyed with a fluorescent dye, and a water-soluble resin. The fluorescent dye contains a fluorescence-emitting dye selected from the group consisting of basic dye, disperse dye and oil-soluble dye, the resin particle has a core portion that contains an aromatic group-containing unit and cyano group-containing unit, and a shell portion that contains an aromatic group-containing unit, an anionic group-containing unit and a crosslinking agent-derived unit, but free of cyano group-containing unit, percentage (% by mass) of the crosslinking agent-derived unit in the shell portion is 30% by mass or more to 80% by mass or less, the water-soluble resin having an aromatic group-containing unit and an anionic group-containing unit, and the water-soluble resin having an acid value of 100 mgKOH/g or more to 180 mgKOH/g or less.