Lithographic printing plate precursor
    13.
    发明授权
    Lithographic printing plate precursor 有权
    平版印刷版前体

    公开(公告)号:US08778590B2

    公开(公告)日:2014-07-15

    申请号:US13121658

    申请日:2009-12-03

    Applicant: Paul Callant

    Inventor: Paul Callant

    Abstract: A lithographic printing plate precursor comprising a coating provided on a support having a hydrophilic surface, the coating containing thermoplastic polymer particles and an IR-dye characterized in that the IR-dye contains a structural element according to Formula I wherein A represents hydrogen, halogen or a monovalent organic group; Y and Y′ independently represent —CH— or —N—; R1 and R2 independently represent hydrogen, an optionally substituted alkyl or aryl group or represent the necessary atoms to form a ring; * represents the linking positions to the rest of the molecule.

    Abstract translation: 一种平版印刷版原版,其包含提供在具有亲水表面的载体上的涂层,所述涂层含有热塑性聚合物颗粒和IR-染料,其特征在于所述IR染料含有根据式I的结构元件,其中A表示氢,卤素或 一价有机基团; Y和Y'独立地表示-CH-或-N-; R1和R2独立地表示氢,任意取代的烷基或芳基或代表必需的原子以形成环; *表示与分子其余部分的连接位置。

    Lithographic printing plate precursor and method of preparing lithographic printing plate using the same
    14.
    发明授权
    Lithographic printing plate precursor and method of preparing lithographic printing plate using the same 有权
    平版印刷版原版及使用其制备平版印刷版的方法

    公开(公告)号:US08722310B2

    公开(公告)日:2014-05-13

    申请号:US13562956

    申请日:2012-07-31

    Applicant: Shota Suzuki

    Inventor: Shota Suzuki

    Abstract: A lithographic printing plate precursor includes, in the following order: a support; an image-recording layer which is capable of forming an image by removing an unexposed area by an automatic development processor in the presence of a developer having pH of from 2 to 14 after exposure and contains (A) a sensitizing dye, (B) a polymerization initiator, (C) a polymerizable compound and (D) a polymer which is insoluble in water and alkali-soluble; and a protective layer, and the protective layer contains (E) a hydrophilic polymer which has a repeating unit represented by the formula (1) as defined herein and a repeating unit represented by the formula (2) as defined herein and a sum of the repeating unit represented by the formula (1) and the repeating unit represented by the formula (2) is at least 95% by mole based on total repeating units constituting the polymer.

    Abstract translation: 平版印刷版原版按以下顺序包括:载体; 一种图像记录层,其能够在暴露于pH为2至14的显影剂存在下通过自动显影处理器去除未曝光区域而形成图像,并且包含(A)感光染料,(B) 聚合引发剂,(C)可聚合化合物和(D)不溶于水和碱溶性的聚合物; 保护层,保护层含有(E)具有如本文所定义的式(1)表示的重复单元的亲水性聚合物和由本文定义的式(2)表示的重复单元和 由式(1)表示的重复单元和由式(2)表示的重复单元相对于构成聚合物的总重复单元至少为95摩尔%。

    Lithographic printing plate precursors for on-press development
    15.
    发明授权
    Lithographic printing plate precursors for on-press development 有权
    用于印刷机发展的平版印刷版前体

    公开(公告)号:US08703381B2

    公开(公告)日:2014-04-22

    申请号:US13221940

    申请日:2011-08-31

    Applicant: Koji Hayashi

    Inventor: Koji Hayashi

    Abstract: On-press developable, negative-working lithographic printing plate precursors have a sulfuric acid anodized aluminum-containing substrate in which the oxide layer pores have been widened using an acidic or alkaline treatment. Over the widened pores, a hydrophilic coating is applied, which coating comprises a non-crosslinked hydrophilic polymer having carboxylic acid side chains. This particular substrate provides improved adhesion and printing durability for on-press development and printing.

    Abstract translation: 印刷显影的负性平版印刷版前体具有硫酸阳极氧化的含铝基材,其中氧化物层孔已经通过酸性或碱性处理而变宽。 在加宽的孔中,施加亲水涂层,该涂层包含具有羧酸侧链的非交联亲水性聚合物。 这种特殊的基材为印刷机的印刷和印刷提供了改善的粘附性和印刷耐久性。

    LITHOGRAPHIC PRINTING PLATE PRECURSOR AND PLATE MAKING METHOD THEREOF
    16.
    发明申请
    LITHOGRAPHIC PRINTING PLATE PRECURSOR AND PLATE MAKING METHOD THEREOF 有权
    平版印刷机前驱板及其制版方法

    公开(公告)号:US20140080054A1

    公开(公告)日:2014-03-20

    申请号:US14087275

    申请日:2013-11-22

    Abstract: A lithographic printing plate precursor which is excellent in both the on-press development property and the printing durability and which is excellent particularly in the on-press development property after preservation for a long period of time, wherein the lithographic printing plate precursor includes an intermediate layer containing a polymer compound including a repeating unit (a1) having a support-adsorbing group and a repeating unit (a2) having a polyoxyalkylene group having a repeating number of oxyalkylene units from 8 to 120 between a support and a polymerizable image-recording layer, and contains a compound having a molecular weight of 1,500 or less and having an oxyalkylene group in at least any of the intermediate layer and the polymerizable image-recording layer.

    Abstract translation: 一种平版印刷版原版,其具有优异的印刷压力显影性和印刷耐久性,并且特别是长时间保存后的印刷机显影性优异,其中平版印刷版原版包括中间体 含有具有支撑体吸附基团的重复单元(a1)的聚合物化合物和在载体和可聚合图像记录层之间具有8〜120重复数氧化烯单元的聚氧化烯基的重复单元(a2) 并且在中间层和可聚合图像记录层中的至少任意一个中含有分子量为1,500以下且具有氧化烯基的化合物。

    Method for making a lithographic printer plate precursor
    18.
    发明授权
    Method for making a lithographic printer plate precursor 有权
    制作平版印刷版原版的方法

    公开(公告)号:US08632954B2

    公开(公告)日:2014-01-21

    申请号:US12594091

    申请日:2008-05-15

    Abstract: A method for making a lithographic printing plate precursor is disclosed comprising the steps of a. providing a lithographic printing plate precursor including a support having a hydrophilic surface or which is provided with a hydrophilic layer, a photopolymerizable coating comprising a photopolymerizable composition, and an overcoat layer comprising a water soluble low molecular weight acid, wherein said overcoat layer has a surface pH-value ranging between 1 to 6; b. image-wise exposing the precursor; c. optionally heating the exposed precursor; d. processing the obtained precursor by applying a gum solution and optionally brushing the precursor, and/or by mounting the precursor on a plate cylinder of a lithographic printing press and rotating the plate cylinder while feeding dampening liquid and/or ink to the coating. The printing plate obtained after imaging and processing in an off-press configuration with a gum solution or in an on-press configuration with fountain solution and ink shows an improved roll-up performance in the start-up of a printing process on a printing press.

    Abstract translation: 公开了一种制备平版印刷版前体的方法,包括以下步骤:a。 提供一种平版印刷版原版,其包括具有亲水性表面的支持体,或设置有亲水层,包含可光聚合组合物的光聚合涂层和包含水溶性低分子量酸的外涂层,其中所述外涂层具有表面 pH值介于1到6之间; b。 以图像方式曝光前体; C。 可选地加热暴露的前体; d。 通过施加胶溶液和任选地刷涂前体来处理所获得的前体,和/或通过将前体安装在平版印刷机的印版滚筒上并旋转印版滚筒,同时将润版液体和/或墨水供给到涂层。 通过胶溶液在印刷结构中进行成像处理后获得的印刷版或具有润版液和油墨的印刷机构造成的印刷版在印刷机上的印刷过程启动时显示出改进的卷起性能 。

    Process for making lithographic printing plate
    19.
    发明授权
    Process for making lithographic printing plate 有权
    平版印刷版制作工艺

    公开(公告)号:US08632953B2

    公开(公告)日:2014-01-21

    申请号:US12565391

    申请日:2009-09-23

    Inventor: Keisuke Arimura

    Abstract: A process for making a lithographic printing plate, comprising: an exposure step of imagewise exposing a lithographic printing plate precursor that comprises, above a hydrophilic support, a photosensitive layer comprising (A) a compound that generates a radical upon the application of light or heat, (B) a polymer having an aromatic carboxy group in a side chain, (C) a polymerizable compound, and (D) an infrared absorber; and a development processing step using one type of processing liquid, wherein the processing liquid has a pH of 8.5 to 10.8.

    Abstract translation: 一种制备平版印刷版的方法,包括:曝光步骤,将平版印刷版前体成像曝光,所述平版印刷版前体在亲水性载体之上包括感光层,所述感光层包含(A)在施加光或热时产生自由基的化合物 ,(B)侧链具有芳香族羧基的聚合物,(C)聚合性化合物,(D)红外线吸收剂等。 以及使用一种处理液的显影处理步骤,其中处理液的pH为8.5至10.8。

    Method for making a lithographic printing plate
    20.
    发明授权
    Method for making a lithographic printing plate 有权
    平版印刷版的制造方法

    公开(公告)号:US08455177B2

    公开(公告)日:2013-06-04

    申请号:US12742466

    申请日:2008-11-04

    Abstract: A method for making a positive-working lithographic printing plate includes the steps of: (1) providing a heat-sensitive printing plate precursor including on a support, having a hydrophilic surface or which is provided with a hydrophilic layer, a heat-sensitive coating; (2) image-wise exposing the precursor with heat and/or light; and (3) developing the exposed precursor with an aqueous alkaline developing solution including lithium ions at a concentration of at least 0.05% wt and a salt of an aliphatic carboxylic acid; wherein the molar ratio of the aliphatic carboxylic acid to the lithium ions is ≧1.

    Abstract translation: 制造正性平版印刷版的方法包括以下步骤:(1)提供包含在具有亲水性表面的或具有亲水层的载体上的热敏印刷版前体,热敏涂层 ; (2)用热和/或光成像地暴露前体; 和(3)用包含浓度为至少0.05重量%的锂离子的水性碱性显影液和脂族羧酸的盐显影所述暴露的前体; 其中脂族羧酸与锂离子的摩尔比为> = 1。

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