Lithographic printing plate precursors
    2.
    发明授权
    Lithographic printing plate precursors 有权
    平版印刷版前体

    公开(公告)号:US08530141B2

    公开(公告)日:2013-09-10

    申请号:US13711648

    申请日:2012-12-12

    IPC分类号: B41M5/00 G03F7/00 G03F7/26

    摘要: Lithographic printing plate precursors can have an imageable layer that includes a polymeric binder having an acid number of at least 30 mg KOH/g of polymer to and including 150 mg KOH/g of polymer, at least 3 weight % of recurring units derived from one or more N-alkoxymethyl (alkyl)acrylamides or alkoxymethyl (alkyl)acrylates, at least 2 weight % of recurring units having pendant 1H-tetrazole groups, and at least 10 weight % of recurring units having pendant cyano groups. The use of such polymeric binders provides good bakeability and chemical solvent resistance, especially for positive-working precursors.

    摘要翻译: 平版印刷版前体可以具有可成像层,其包含酸值为至少30mg KOH / g的聚合物,并且包含150mg KOH / g聚合物的聚合物粘合剂,至少3重量%衍生自一个聚合物的重复单元 或更多的N-烷氧基甲基(烷基)丙烯酰胺或烷氧基甲基(烷基)丙烯酸酯,至少2重量%的具有侧挂的1H-四唑基的重复单元和至少10重量%的具有侧基氰基的重复单元。 使用这种聚合物粘合剂提供良好的烘烤性和耐化学溶剂性,特别是对于正性前体。

    LITHOGRAPHIC PROCESSING SOLUTIONS AND METHODS OF USE

    公开(公告)号:US20110236832A1

    公开(公告)日:2011-09-29

    申请号:US12732282

    申请日:2010-03-26

    IPC分类号: G03F7/20 G03F7/00

    CPC分类号: G03F7/322

    摘要: A lithographic processing solution having a pH of less than 12 and comprising at least 0.001 and up to and including 1 weight % of a water-soluble or water-dispersible, non-IR-sensitive compound that has a heterocyclic moiety with a quaternary nitrogen in the 1-position of the heterocyclic ring, and having one or more electron donating substituents attached to the heterocyclic ring, at least one of which electron donating substituents is attached in the 2-position. The processing solution can be used to develop both single-layer and multi-layer positive-working lithographic printing plate precursors that have been imaged using infrared radiation.

    摘要翻译: 一种平版印刷加工溶液,其PH值小于12,并且包含至少0.001和至多并且包括1重量%的水溶性或水分散性,非IR敏感性化合物,其具有季氮的杂环部分 杂环的1位,并且具有连接到杂环上的一个或多个给电子取代基,其中至少一个给电子取代基连接在2-位。 处理溶液可用于开发已经使用红外辐射成像的单层和多层正性工作平版印刷版前体。

    LITHOGRAPHIC PRINTING PLATE PRECURSORS
    4.
    发明申请
    LITHOGRAPHIC PRINTING PLATE PRECURSORS 审中-公开
    平版印刷机前驱

    公开(公告)号:US20110097666A1

    公开(公告)日:2011-04-28

    申请号:US12606378

    申请日:2009-10-27

    摘要: Lithographic printing plate precursors can have an imageable layer that includes a polymeric binder having an acid number of 40 meq/g KOH or more, at least 3 weight % of recurring units derived from one or more N-alkoxymethyl (alkyl)acrylamides or alkoxymethyl(alkyl)acrylates, at least 2 weight % of recurring units having pendant 1H-tetrazole groups, and at least 10 weight % of recurring units having pendant cyano groups. The use of such polymeric binders provides good bakeability and chemical solvent resistance, especially for positive-working precursors.

    摘要翻译: 平版印刷版前体可以具有可成像层,其包含酸值为40meq / g KOH或更高的聚合物粘合剂,至少3重量%的衍生自一个或多个N-烷氧基甲基(烷基)丙烯酰胺或烷氧基甲基( 烷基)丙烯酸酯,至少2重量%的具有侧挂的1H-四唑基的重复单元和至少10重量%的具有侧基氰基的重复单元。 使用这种聚合物粘合剂提供良好的烘烤性和耐化学溶剂性,特别是对于正性前体。

    Dual-Layer Heat-Sensitive Imageable Elements with a Polyvinyl Acetal Top Layer
    6.
    发明申请
    Dual-Layer Heat-Sensitive Imageable Elements with a Polyvinyl Acetal Top Layer 有权
    双层热敏成像元件与聚乙烯乙缩醛顶层

    公开(公告)号:US20080206674A1

    公开(公告)日:2008-08-28

    申请号:US11997564

    申请日:2006-08-01

    IPC分类号: G03F7/004 G03F7/12

    摘要: Thermally imagable elements are described comprising on a substrate with hydrophilic surface (a) a first layer comprising a first polymer soluble or swellable in aqueous alkaline developer and insoluble in organic solvents with low polarity and (b) a second layer comprising a second polymer soluble or swellable in aqueous alkaline developer, wherein the first polymer is different from the second polymer and the second polymer comprises vinyl acetal repeating units and pendant acidic groups selected from COOH, —SO3H, —PO3H2, —PO4H2, aromatic OH and groups having acidic amide or imide groups.

    摘要翻译: 描述了可热成像的元件,其包括在具有亲水表面的基底上(a)第一层,该第一层包含在碱性显影剂的水溶液中可溶或可溶胀的第一聚合物,并且不溶于低极性的有机溶剂中,和(b)第二层, 在水性碱性显影剂中可膨胀,其中第一聚合物不同于第二聚合物,第二聚合物包含乙烯基缩醛重复单元和选自COOH,-SO 3 H,-PO 3, 3个H 2,-PO 4 H 2,芳香族OH和具有酸性酰胺或酰亚胺基团的基团。

    Positive-working lithographic printing plate precursors and use
    7.
    发明授权
    Positive-working lithographic printing plate precursors and use 有权
    正版平版印刷版前体和用途

    公开(公告)号:US08936899B2

    公开(公告)日:2015-01-20

    申请号:US13602367

    申请日:2012-09-04

    IPC分类号: G03C1/00 G03F7/00 G03F7/027

    摘要: A thermally-sensitive, positive-working lithographic printing plate precursor can be used to prepare lithographic printing plates using high pH, silicate-free processing solutions. The precursor has a grained an anodized aluminum-containing substrate including a poly(vinyl phosphonic acid) interlayer. A first ink receptive layer, and optionally a second ink receptive layer, is disposed directly on the poly(vinyl phosphonic acid) interlayer. This first ink receptive layer comprises an aromatic acid dye that comprises at least two aromatic groups in an amount of least 0.5 weight %. In addition, the precursor comprises an infrared radiation absorber in one of the layers.

    摘要翻译: 热敏正性平版印刷版前体可用于制备使用高pH,无硅酸盐处理溶液的平版印刷版。 前体具有含有聚(乙烯基膦酸)中间层的含有阳极氧化的含铝基材。 第一受墨层和任选的第二墨接受层直接设置在聚(乙烯基膦酸)中间层上。 该第一受墨层包含至少两个芳香族基团,其含量至少为0.5重量%。 此外,前体包括在其中一层中的红外辐射吸收剂。

    Methods for preparing lithograhic printing plates
    8.
    发明授权
    Methods for preparing lithograhic printing plates 有权
    光刻印刷板的制备方法

    公开(公告)号:US08846299B2

    公开(公告)日:2014-09-30

    申请号:US13615739

    申请日:2012-09-14

    CPC分类号: G03F7/322 B41N3/08

    摘要: A lithographic processing solution has a pH of less than 12 and comprises at least 0.001 and up to and including 1 weight % of a water-soluble or water-dispersible, non-IR-sensitive compound that has a heterocyclic moiety with a quaternary nitrogen in the 1-position of the heterocyclic ring, and has one or more electron donating substituents attached to the heterocyclic ring, at least one of which electron donating substituents is attached in the 2-position. This processing solution can be used to develop both single-layer and multi-layer positive-working lithographic printing plate precursors that have been imaged using infrared radiation.

    摘要翻译: 平版印刷加工溶液的pH值小于12,并且包含至少0.001和至多并且包括1重量%的水溶性或水分散性,非IR敏感性化合物,其具有季氮的杂环部分 杂环的1-位,并且具有连接到杂环上的一个或多个给电子取代基,其中至少一个给电子取代基连接在2-位。 该处理溶液可用于开发使用红外辐射成像的单层和多层正性工作平版印刷版前体。

    MAKING LITHOGRAPHIC PRINTING PLATES
    9.
    发明申请
    MAKING LITHOGRAPHIC PRINTING PLATES 有权
    制作平版印刷版

    公开(公告)号:US20140283703A1

    公开(公告)日:2014-09-25

    申请号:US14296788

    申请日:2014-06-05

    IPC分类号: B41C1/10

    摘要: A thermally-sensitive, positive-working lithographic printing plate precursor can be used to prepare lithographic printing plates using high pH, silicate-free processing solutions. The precursor has a grained an anodized aluminum-containing substrate including a poly(vinyl phosphonic acid) interlayer. A first ink receptive layer, and optionally a second ink receptive layer, is disposed directly on the poly(vinyl phosphonic acid) interlayer. This first ink receptive layer comprises an aromatic acid dye that comprises at least two aromatic groups in an amount of least 0.5 weight %. In addition, the precursor comprises an infrared radiation absorber in one of the layers.

    摘要翻译: 热敏正性平版印刷版前体可用于制备使用高pH,无硅酸盐处理溶液的平版印刷版。 前体具有含有聚(乙烯基膦酸)中间层的含有阳极氧化的含铝基材。 第一受墨层和任选的第二墨接受层直接设置在聚(乙烯基膦酸)中间层上。 该第一受墨层包含至少两个芳香族基团,其含量至少为0.5重量%。 此外,前体包括在其中一层中的红外辐射吸收剂。