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    PRINTING ORIGINAL PLATE FOR PHOTOSENSITIVE RESIN LETTERPRESS, AND PRINTING PLATE
    1.
    发明公开
    PRINTING ORIGINAL PLATE FOR PHOTOSENSITIVE RESIN LETTERPRESS, AND PRINTING PLATE 审中-实审

    公开(公告)号：EP4411479A1

    公开(公告)日：2024-08-07

    申请号：EP22876139.1

    申请日：2022-09-26

    申请人： TOYOBO MC Corporation

    发明人： TANIGAWA, Masahito ,  IWASHITA, Yuji

    IPC分类号： G03F7/095 ,  B41N1/00 ,  G03F7/00 ,  G03F7/004 ,  G03F7/032 ,  G03F7/035 ,  G03F7/037

    CPC分类号： B41N1/00 ,  G03F7/00 ,  G03F7/004 ,  G03F7/032 ,  G03F7/035 ,  G03F7/037 ,  G03F7/095

    摘要： The present invention provides a photosensitive resin printing plate precursor for relief printing that can achieve both gradation print reproducibility of a highlight part and plate life, and that has a low plate-surface adhesiveness.
    A photosensitive resin printing plate precursor for relief printing, wherein the photosensitive resin printing plate precursor comprises a support, a photosensitive resin layer, and a cover film stacked in this order, wherein the photosensitive resin layer comprises a lower layer present on a support side and an upper layer present on a cover-film side, wherein the upper layer is a photosensitive resin layer that contains a water-soluble or water-dispersible resin (A) having a glass transition temperature measured by differential scanning calorimeter of 40 to 90°C, wherein the upper layer has a thickness of 3 to 30 micrometers, wherein the lower layer is a layer that contains a water-soluble or water-dispersible resin (B) having a glass transition temperature higher than the glass transition temperature of the water-soluble or water-dispersible resin (A) by 5°C or more, and wherein the glass transition temperature of the resin (B) measured by differential scanning calorimeter is 95 to 135°C.

    VERFAHREN ZUR GENERATIVEN HERSTELLUNG VON RELIEFDRUCKFORMEN MITTELS MONOMERDIFFUSION DURCH EINE INTEGRALE MASKENSCHICHT
    6.
    发明公开
    VERFAHREN ZUR GENERATIVEN HERSTELLUNG VON RELIEFDRUCKFORMEN MITTELS MONOMERDIFFUSION DURCH EINE INTEGRALE MASKENSCHICHT 审中-公开

    公开(公告)号：EP3394672A1

    公开(公告)日：2018-10-31

    申请号：EP16822444.2

    申请日：2016-12-19

    申请人： Flint Group Germany GmbH

    发明人： TELSER, Thomas ,  BEYER, Matthias ,  FLEISCHER, Daniel

    IPC分类号： G03F7/00 ,  G03F7/032 ,  G03F7/033 ,  G03F7/12

    摘要： The invention relates to a method for generative production of relief printing plates where a base with a polymeric substrate layer and a laser-ablatable mask layer is provided, the polymeric substrate layer comprising a first binder. A mask with apertures matching image elements is generated by imagewise laser ablation of the mask layer. Then a liquid comprising a reactive monomer is applied over the surface of the mask-covered polymeric substrate layer and the liquid or the reactive monomer diffuses through the mask apertures into the polymeric substrate layer for a defined exposure time so as to form a relief. Then the excess liquid or excess monomer and optionally the mask are removed from the surface and the resultant relief is fixed by crosslinking.

    LITHOGRAPHIC PRINTING PLATE PRECURSORS AND COATING
    10.
    发明公开
    LITHOGRAPHIC PRINTING PLATE PRECURSORS AND COATING 有权
    LITHOGRAFISCHEDRUCKPLATTENVORLÄUFERUND BESCHICHTUNG

    公开(公告)号：EP3063591A4

    公开(公告)日：2017-08-02

    申请号：EP14857114

    申请日：2014-10-24

    申请人： ANOCOIL CORP

    发明人： KITSON ANTHONY PAUL

    IPC分类号： G03F7/027 ,  G03F7/032 ,  G03F7/038 ,  G03F7/075 ,  G03F7/085 ,  G03F7/32

    CPC分类号： G03F7/0755 ,  G03F7/027 ,  G03F7/032 ,  G03F7/038 ,  G03F7/0751 ,  G03F7/085 ,  G03F7/2002 ,  G03F7/322

    摘要： A coating for use with a hydrophilic sheet substrate to form a lithographic printing plate precursor, including at least one Compound A silane compound and at least one Compound B phosphinic acid or organic derivative thereof. Compounds A and B experience a synergistic interaction which substantially increases adhesion to the substrate of areas imaged by radiation. The resulting plate is exhibits high on-press durability suitable for high volume commercial uses without a preheat step prior to development, even when imaged with lower levels of radiation such as violet lasers. A method of preparing a lithographic printing plate includes imagewise exposing the coating on a surface of a hydrophilic substrate to violet radiation and developing in an alkaline aqueous solution without preheating.

    摘要翻译： 一种用于与亲水性片基材一起使用以形成平版印刷版原版的涂层，其包含至少一种化合物A硅烷化合物和至少一种化合物B次膦酸或其有机衍生物。 化合物A和B经历协同相互作用，其显着增加对通过辐射成像的区域的基底的粘附。 即使用较低水平的辐射（例如紫激光）成像，所得到的印版也表现出高的机上耐久性，适合大量商业用途，而不需要显影之前的预热步骤。 制备平版印刷版的方法包括将亲水基材表面上的涂层成像曝光成紫色辐射，并在碱性水溶液中显影而不预热。