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    AQUEOUS PIGMENT DISPERSION
    1.
    发明公开
    AQUEOUS PIGMENT DISPERSION 审中-公开

    公开(公告)号：US20230312961A1

    公开(公告)日：2023-10-05

    申请号：US18127794

    申请日：2023-03-29

    Applicant: SANYO CHEMICAL INDUSTRIES, LTD. ,  SEIKO EPSON CORPORATION

    Inventor： Hiroshi ODAJIMA ,  Takeshi YANO ,  Kenji KITADA ,  Shinichi NAITO

    IPC: C09D11/326 ,  C09D175/08

    CPC classification number: C09D11/326 ,  C09D175/08

    Abstract: Provided is an aqueous pigment dispersion having high initial dispersibility, high storage stability, and high color developability after printing, and particularly having high rub resistance (rubbing fastness) in cotton fabrics. An aqueous pigment dispersion for an aqueous inkjet ink, including a pigment and an aqueous medium, the pigment being dispersed with a polyurethane resin prepared by reacting an active hydrogen atom-containing component (A) with an organic polyisocyanate component (B), the active hydrogen atom-containing component (A) containing a polycarbonate polyol (a1), the organic polyisocyanate component (B) containing at least one compounds selected from the group consisting of aliphatic polyisocyanates (b1), alicyclic polyisocyanates (b2), and aromatic polyisocyanates (b3), wherein a coating film formed by drying the aqueous pigment dispersion at 50° C. for 12 hours has a storage modulus G′ at 160° C. of 1 to 10 MPa.

    INK JET PRINTER AND PRINTING METHOD
    5.
    发明申请
    INK JET PRINTER AND PRINTING METHOD 有权
    喷墨打印机和打印方法

    公开(公告)号：US20150202894A1

    公开(公告)日：2015-07-23

    申请号：US14601373

    申请日：2015-01-21

    Applicant: Seiko Epson Corporation

    Inventor： Kenji KITADA ,  Takuya MIYAKAWA ,  Takashi SAIBA ,  Kiyofumi KITAWADA ,  Atsushi DENDA ,  Maki NARIAI

    IPC: B41J11/00

    CPC classification number: B41J11/002 ,  D06P5/30

    Abstract: An ink jet printer includes a transport mechanism that transports a medium in a first direction; and a carriage that includes a plasma irradiation mechanism, which emits plasma generated in a discharge portion from a plasma irradiation port and then irradiates at least a part of the medium with the plasma, and a head which ejects ink onto the part of the medium which is irradiated with the plasma, and that moves in a second direction intersecting with the first direction, in which the plasma irradiation mechanism is provided on one side of the head in the second direction, and the discharge portion of the plasma irradiation mechanism is disposed so as not to come in contact with the medium.

    Abstract translation: 喷墨打印机包括：传送机构，其沿第一方向传送介质; 以及包括等离子体照射机构的托架，该等离子体照射机构从等离子体照射口发射在排出部分产生的等离子体，然后用等离子体照射介质的至少一部分，以及将墨水喷射到介质部分上的头部 并且沿与第一方向相交的第二方向移动，其中等离子体照射机构沿着第二方向设置在头部的一侧上，并且等离子体照射机构的排出部分被布置成 不要与介质接触。

    Aqueous Ink Jet Ink
    6.
    发明公开
    Aqueous Ink Jet Ink 审中-公开

    公开(公告)号：US20230312962A1

    公开(公告)日：2023-10-05

    申请号：US18192771

    申请日：2023-03-30

    Applicant: SEIKO EPSON CORPORATION

    Inventor： Takeshi YANO ,  Kenji KITADA ,  Shinichi NAITO ,  Hiroshi ODAJIMA

    IPC: C09D11/326 ,  C09D11/38

    CPC classification number: C09D11/326 ,  C09D11/38

    Abstract: An embodiment of the present disclosure relates to an aqueous ink jet ink containing a pigment aqueous dispersion, water, and a water-soluble organic solvent. The pigment aqueous dispersion contains a pigment dispersed in a polyurethane resin obtained by reaction of an active hydrogen atom-containing component and an organic polyisocyanate component and an aqueous medium. The active hydrogen atom-containing component contains a polycarbonate polyol, the organic polyisocyanate component contains one or more selected from the group consisting of a linear or branched aliphatic polyisocyanate, an alicyclic polyisocyanate, and an aromatic polyisocyanate. A film obtained by drying the pigment aqueous dispersion at 50° C. for 12 hours has an elastic modulus G′ at 160° C. of 1 to 10 MPa.

    Ink Jet Ink Set And Recording Method
    7.
    发明申请
    Ink Jet Ink Set And Recording Method 有权

    公开(公告)号：US20220098424A1

    公开(公告)日：2022-03-31

    申请号：US17488439

    申请日：2021-09-29

    Applicant: Seiko Epson Corporation

    Inventor： Kenji KITADA ,  Takeshi YANO ,  Shinichi NAITO ,  Kenta KIKUCHI ,  Hirofumi HOKARI

    IPC: C09D11/322 ,  D06P5/00

    Abstract: One aspect of the ink jet ink set according to the present disclosure is an ink jet ink set including an anionic ink containing an anionic resin, a pigment, and water, and a cationic ink containing a cationic resin, a pigment, and water, in which the anionic ink and the cationic ink are similar colors to each other, the pigment in the anionic ink is coated with the anionic resin, the pigment in the cationic ink is coated with the cationic resin, and the anionic resin or the cationic resin, or both have a urethane-based skeleton or a polyester-based skeleton.

    INK JET PRINTER
    8.
    发明申请
    INK JET PRINTER 有权
    喷墨打印机

    公开(公告)号：US20150290952A1

    公开(公告)日：2015-10-15

    申请号：US14681548

    申请日：2015-04-08

    Applicant: Seiko Epson Corporation

    Inventor： Kenji KITADA ,  Takuya MIYAKAWA ,  Takashi SAIBA ,  Kiyofumi KITAWADA

    IPC: B41J11/00

    CPC classification number: B41J11/002 ,  B41J11/0015 ,  B41M5/5209 ,  B41M7/0018 ,  B41M7/0045

    Abstract: An ink jet printer including a transportation mechanism that transports a medium in a first direction; and a carriage that has a plasma irradiation mechanism configured to irradiate at least a portion of the medium with plasma generated in an electricity discharge portion and emitted from a plasma irradiation opening and a head configured to eject ink from a nozzle to the portion of the medium irradiated with the plasma, and that moves in a second direction intersecting the first direction, in which the plasma irradiation mechanism is provided on one side of the head in the second direction, a partition board is provided between the plasma irradiation opening and the head, and if a distance from a surface of the medium to the nozzle is (A), a distance from a surface of the medium to the plasma irradiation opening is (B), and a distance from a surface of the medium to the bottom edge of the partition board is (C), a conditional expression: (C)

    Abstract translation: 一种喷墨打印机，包括：输送机构，其沿第一方向传送介质; 以及具有等离子体照射机构的托架，该等离子体照射机构被配置为用至少一部分介质照射在放电部分中产生的等离子体并从等离子体照射开口发射的等离子体照射机构，以及头部，其被配置为将墨水从喷嘴喷射到介质的该部分 照射等离子体，并且在与第一方向相交的第二方向上移动，其中等离子体照射机构沿着第二方向设置在头部的一侧上，隔离板设置在等离子体照射开口和头部之间， 并且如果从介质的表面到喷嘴的距离为（A），则从介质的表面到等离子体照射口的距离为（B），并且从介质的表面到底部边缘的距离 分隔板为（C），满足条件表达式：（C）<（A）＆nlE;（B）。

    AQUEOUS PIGMENT DISPERSION
    10.
    发明公开
    AQUEOUS PIGMENT DISPERSION 审中-公开

    公开(公告)号：US20230312956A1

    公开(公告)日：2023-10-05

    申请号：US18127814

    申请日：2023-03-29

    Applicant: SANYO CHEMICAL INDUSTRIES, LTD. ,  SEIKO EPSON CORPORATION

    Inventor： Hiroshi ODAJIMA ,  Kenji KITADA ,  Takeshi YANO ,  Shinichi NAITO

    IPC: C09D11/322 ,  C09D11/102

    CPC classification number: C09D11/322 ,  C09D11/102

    Abstract: Provided is an aqueous pigment dispersion having high initial dispersion stability and high storage stability and demonstrating high color developability in particularly fabrics not pre-treated. An aqueous pigment dispersion for an aqueous inkjet ink, including a pigment and an aqueous medium, the pigment being dispersed with a polyurethane resin prepared by reacting an active hydrogen atom-containing component (A) with an organic polyisocyanate component (B). The active hydrogen atom-containing component (A) contains a quaternary ammonium compound (a1), and the quaternary ammonium compound (a1) is contained in a weight proportion of 12% by weight or more relative to the total weight of the active hydrogen atom-containing component (A) and the organic polyisocyanate component (B).

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