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    Inkjet printing
    1.
    发明授权
    Inkjet printing 有权

    公开(公告)号：US10857825B2

    公开(公告)日：2020-12-08

    申请号：US16331209

    申请日：2017-01-31

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： Zhang-Lin Zhou ,  Rodney David Stramel ,  Bor-Jiunn Niu

    IPC: B41M7/00 ,  C09D11/101 ,  C09D11/38 ,  C09D11/40 ,  C09D11/54 ,  C09D175/04 ,  C09D11/30 ,  C09D11/322

    Abstract: The present disclosure relates to an Inkjet printing process that comprises inkjet printing an inkjet ink composition onto a substrate to form a printed inkjet ink layer. The inkjet ink composition comprises a colorant, a curable polyurethane dispersion, a photoinitiator and water, wherein the amount of curable polyurethane dispersed in the inkjet ink composition is 0.1 to 30 weight %. A radiation-curable overcoat composition is applied over the printed inkjet ink layer as an overcoat layer. The overcoat composition comprises a curable polyurethane dispersion, a photoinitiator and water. The printed inkjet ink layer is then cured on the substrate by exposing both the overcoat layer and inkjet ink layer on the substrate to radiation.

    Inkjet compositions
    5.
    发明授权
    Inkjet compositions 有权

    公开(公告)号：US10723897B2

    公开(公告)日：2020-07-28

    申请号：US16331270

    申请日：2017-01-31

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： Zhang-Lin Zhou ,  Rodney David Stramel ,  Gregg A. Lane

    IPC: B41J11/00 ,  C09D11/101 ,  B41M5/00 ,  C09D11/322

    Abstract: The present disclosure relates to an inkjet composition comprising a curable polyurethane dispersion and an aqueous carrier. The curable polyurethane dispersion comprises at least one of a) a polyurethane polymer comprising a first terminal group selected from a styrene-containing group, an allyl-containing group and an acrylamide-containing group, and a polyurethane polymer comprising a second terminal group comprising an ionic group; and/or a polyurethane polymer comprising a first terminal group at one end and a second terminal group at the opposite end, wherein the first terminal group is selected from a styrene-containing group, an allyl-containing group and an acrylamide-containing group, and the second terminal group comprises an ionic group; b) a polyurethane polymer comprising a terminal group selected from at least one of stabilising groups (A) and (B); and c) a polyurethane polymer comprising a polyurethane chain formed by the polymerisation of (i) a blend of at least two different diisocyanates and (ii) a reactive diol.

    Reactive polyurethane dispersions
    8.
    发明授权
    Reactive polyurethane dispersions 有权

    公开(公告)号：US10920074B2

    公开(公告)日：2021-02-16

    申请号：US16335541

    申请日：2017-01-31

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： Zhang-Lin Zhou ,  Rodney David Stramel ,  Gregg A. Lane

    IPC: C08L75/16 ,  C08G18/75 ,  C08G18/81 ,  C09D11/101 ,  C09D11/322 ,  C09D175/16

    Abstract: The present disclosure is drawn to reactive polyurethane dispersions. In one example, a reactive polyurethane dispersion can include a polymer strand having a polymer backbone that has two ends terminating at a first capping unit and a second capping unit. The polymer backbone can include polymerized monomers including a reactive diol and a diisocyanate. The reactive diol can be an acrylate-containing diol, a methacrylate-containing diol, an acrylamide-containing diol, a methacrylamide-containing diol, or combination thereof. The first capping unit can be an acrylamide-containing monoalcohol or methacrylamide-containing monoalcohol reacted with an isocyanate group of the diisocyanate. The second capping unit can be an ionic stabilizing group.

    Reactive polyurethane dispersions
    9.
    发明授权
    Reactive polyurethane dispersions 有权

    公开(公告)号：US10907057B2

    公开(公告)日：2021-02-02

    申请号：US16334897

    申请日：2017-01-31

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： Zhang-Lin Zhou ,  Rodney David Stramel ,  Gregg A. Lane

    IPC: C09D11/101 ,  C08G18/08 ,  C08G18/67 ,  C08G18/72 ,  C08G18/73 ,  C08G18/75

    Abstract: The present disclosure is drawn to a reactive polyurethane dispersion including a polymer strand having a polymer backbone that has two ends terminating at a first capping unit and a second capping unit. The polymer backbone can include polymerized monomers including a reactive diol and a blend of two or more diisocyanates. The reactive diol can be an acrylate-containing diol, a methacrylate-containing diol, or combination thereof. The first capping unit can be an acrylate-containing monoalcohol or methacrylate-containing monoalcohol reacted with an isocyanate group of the diisocyanates. The second capping unit can be an ionic stabilizing group. The polymer backbone can be devoid of ionic stabilizing groups.

    Inkjet printing
    10.
    发明授权
    Inkjet printing 有权

    公开(公告)号：US10821760B2

    公开(公告)日：2020-11-03

    申请号：US16331239

    申请日：2017-02-07

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： Zhang-Lin Zhou ,  Rodney David Stramel ,  Gregg A. Lane

    IPC: B41J11/02 ,  B41M5/00 ,  C09D11/322 ,  C09D11/54 ,  C09D11/40 ,  C09D11/101 ,  B41M7/00 ,  C09D11/38 ,  B41M5/52

    Abstract: The present disclosure relates to an inkjet printing process that comprises inkjet printing an inkjet ink composition onto a substrate to form a printed inkjet ink layer. The inkjet ink composition comprises a colorant, a curable polyurethane dispersion, a photoinitiator and water, wherein the amount of curable polyurethane dispersed in the inkjet ink composition is 0.1 to 30 weight %. A radiation-curable overcoat composition is inkjet printed over the printed inkjet ink layer as an overcoat layer. The overcoat composition comprises a curable polyurethane dispersion, a photoinitiator and water, wherein the amount of curable polyurethane dispersed in the overcoat composition is 0.1 to 30 weight %. The printed inkjet ink layer is cured by exposing both the printed inkjet ink layer and the overcoat layer on the substrate to radiation.

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