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    Positive-working lithographic printing plate precursor
    1.
    发明申请
    Positive-working lithographic printing plate precursor 有权
    正版平版印刷版前体

    公开(公告)号：US20030068578A1

    公开(公告)日：2003-04-10

    申请号：US10243750

    申请日：2002-09-13

    Applicant: AGFA-GEVAERT

    Inventor： Marc Van Damme ,  Joan Vermeersch ,  Geert Deroover

    IPC: G03F007/11 ,  G03C001/77

    CPC classification number: B41N1/14 ,  B41C1/1008 ,  B41C2210/02 ,  B41C2210/06 ,  B41C2210/22 ,  B41C2210/24 ,  B41N1/08

    Abstract: A lithographic printing plate precursor is disclosed which comprises (i) a support having a hydrophilic surface or which is provided with a hydrophilic layer and (ii) a coating provided thereon, the coating comprising an oleophilic layer which, upon image-wise exposure to heat or infrared light and subsequent immersion in an aqueous alkaline developer, dissolves in the developer at a higher dissolution rate in exposed areas than in unexposed areas, wherein the oleophilic layer comprises a polymer that is soluble in the developer and an organic dye in a amount sufficient to provide a visible color to the coating, characterized in that said organic dye does not reduce the dissolution rate of the unexposed areas in the developer. By using non-inhibiting dyes, the sensitivity of the precursor upon image-wise exposure is increased.

    Abstract translation: 公开了一种平版印刷版原版，其包括（i）具有亲水性表面的或具有亲水层的载体，和（ii）在其上提供的涂层，所述涂层包含亲油层，其在成像时暴露于热 或红外光并随后浸入含水碱性显影剂中，在暴露的区域中以比未曝光的区域更高的溶解速率溶解在显影剂中，其中亲油层包含可溶于显影剂的聚合物和足够量的有机染料 以向涂层提供可见的颜色，其特征在于所述有机染料不会降低显影剂中未曝光区域的溶解速率。 通过使用非抑制染料，前体在成像曝光时的灵敏度增加。

    Heat-sensitive lithographic printing plate precursor
    3.
    发明申请
    Heat-sensitive lithographic printing plate precursor 失效
    热敏平版印刷版前体

    公开(公告)号：US20040182268A1

    公开(公告)日：2004-09-23

    申请号：US10765797

    申请日：2004-01-27

    Applicant: AGFA-GEVAERT

    Inventor： Geert Deroover ,  Marc Van Damme

    IPC: B41N001/00

    CPC classification number: B41C1/1016 ,  B41C2210/02 ,  B41C2210/06 ,  B41C2210/14 ,  B41C2210/22 ,  B41C2210/24 ,  B41C2210/262 ,  Y10S430/146

    Abstract: A positive working printing plate precursor is disclosed which comprises a hydrophilic support and a coating provided thereon which comprises in the order given a first layer containing an oleophilic resin soluble in an aqueous alkaline developer and a second layer comprising a water repellent-compound. Furthermore, the coating comprises an infrared absorbing dye containing a perfluoroalkyl group providing a printing plate precursor with high sensitivity.

    Abstract translation: 公开了一种正性工作印刷版前体，其包括亲水性支持物和在其上提供的涂层，其顺序包含含有可溶于碱性水溶液的亲油性树脂的第一层和包含防水化合物的第二层。 此外，涂层包含含有全氟烷基的红外吸收染料，提供具有高灵敏度的印版前体。

    Heat-sensitive lithographic printing plate precursor
    4.
    发明申请
    Heat-sensitive lithographic printing plate precursor 审中-公开
    热敏平版印刷版前体

    公开(公告)号：US20040048195A1

    公开(公告)日：2004-03-11

    申请号：US10654508

    申请日：2003-09-03

    Applicant: AGFA-GEVAERT

    Inventor： Geert Deroover ,  Marc Van Damme ,  Joan Vermeersch

    IPC: B41C001/10 ,  G03C001/77

    CPC classification number: B41C1/1008 ,  B41C1/1016 ,  B41C2201/02 ,  B41C2201/14 ,  B41C2210/02 ,  B41C2210/06 ,  B41C2210/22 ,  B41C2210/24 ,  B41C2210/262

    Abstract: A heat-sensitive lithographic printing plate precursor is disclosed which comprises a hydrophilic support and a coating provided thereon, wherein the coating comprises an infrared light absorbing cyanine dye, the dye containing a bridged methine chain and from three to five groups which are anionic or which become anionic in an aqueous alkaline solution having a pH of at least 9. Such dyes provide high sensitivity and low dye stain after processing.

    Abstract translation: 公开了一种热敏平版印刷版前体，其包含亲水性载体和在其上提供的涂层，其中所述涂层包含红外光吸收花青染料，所述染料含有桥连次甲基链和三至五个阴离子基团或其中 在pH至少为9的碱性水溶液中变成阴离子。这些染料在加工后提供高灵敏度和低染料染色。

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