Heat-sensitive lithographic printing plate precursor
    43.
    发明授权
    Heat-sensitive lithographic printing plate precursor 有权
    热敏平版印刷版前体

    公开(公告)号:US06397749B1

    公开(公告)日:2002-06-04

    申请号:US09626490

    申请日:2000-07-26

    IPC分类号: B41N108

    摘要: A heat-sensitive precursor of lithographic printing plates, which comprises a hydrophilic layer provided on a substrate having an ink-receptive surface or coated with an ink-receptive layer; the printing plate precursor further having a water-soluble overcoat layer on the hydrophilic layer, and the hydrophilic layer being a three-dimensionally cross-linked hydrophilic layer, the heated area of that is easily removed by a fountain solution or ink when subjected to printing operations.

    摘要翻译: 平版印刷版的热敏前体,其包括设置在具有油墨接收表面或涂覆有油墨接受层的基材上的亲水层; 印版前体还在亲水层上还具有水溶性外涂层,亲水层是三维交联的亲水层,其加热区域在经受印刷时容易被润版液或油墨除去 操作。

    Planographic original plate
    44.
    发明授权
    Planographic original plate 失效
    平原原版

    公开(公告)号:US6007964A

    公开(公告)日:1999-12-28

    申请号:US050890

    申请日:1998-03-31

    摘要: The object of the present invention is to provide a planographic original plate which can be engraved directly according to digital signals by laser beams and which can be water-developed or can be used directly for printing without a developing process. This objective has been achieved by a planographic original plate comprising a substrate and a photosensitive layer which is supported by the substrate and which contains a polymeric compound having as a side chain at least one structural unit selected from the structural units represented by the general formulas (1) to (3).General Formula (1)--SO.sub.3 --CH.sub.2 --L.sub.n --O--ZIn the general formula (1), L represents a linking group composed of a non-metallic atom. --O--Z represents a group which is decomposed by an acid to become --OH. n is 0 or 1.General Formula (2)--SO.sub.3 --L--W.sup.1In the general formula (2), W.sup.1 represents a group which is decomposed by an acid and selected from an ester group, a ketal group, a thioketal group, an acetal group and a tertiary alcohol group. L represents a polyvalent linking group comprising a non-metallic atom, which is necessary for linking the structural unit which is represented by the general formula (2) to a polymer skeleton, and whose decomposition accompanies the decomposition of W.sup.1, which is decomposed by an acid, to generate sulfonic acid.General Formula (3) ##STR1## In the general formula (3), R.sup.1 to R.sup.3 may be the same or different, and each represents a group selected from a hydrogen atom, an alkyl group, an aryl group, a substituted amino group, an alkylthio group, an arylthio group, an alkoxy group, an aryloxy group, a carboxyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an acyl group, a cyano group, a halogen atom, and an amido group. Any two of R.sup.1 to R.sup.3 and a carbon atom linked thereto may form a ring together with a non-metallic atom.

    摘要翻译: 本发明的目的是提供一种可以根据数字信号通过激光束直接雕刻的平版印刷版,并且可以水显影或可以直接用于印刷而不用显影过程。 该目的已经通过平版印刷原版来实现,该平版印刷版包括由基底和感光层支撑的平版印刷原版,该感光层由基底支撑并含有作为侧链的聚合化合物,该聚合化合物具有至少一个结构单元,所述结构单元选自由通式 1)〜(3)。 通式(1)-SO 3 -CH 2 -Ln-O-Z在通式(1)中,L表示由非金属原子构成的连接基团。 -O-Z表示被酸分解成-OH的基团。 n为0或1.通式(2)-SO 3 -L-W1在通式(2)中,W 1表示被酸分解并选自酯基,缩酮基,硫代缩酮基, 缩醛基和叔醇基。 L表示包含非金属原子的多价连接基团,其是将由通式(2)表示的结构单元与聚合物骨架连接所必需的,并且其分解伴随着分解为W1的分解 酸,产生磺酸。 通式(3)通式(3)中,R 1〜R 3可以相同或不同,表示选自氢原子,烷基,芳基,取代氨基,烷硫基 芳硫基,烷氧基,芳氧基,羧基,烷氧基羰基,芳氧基羰基,酰基,氰基,卤素原子和酰胺基。 R 1至R 3中的任何两个和与其连接的碳原子可以与非金属原子一起形成环。

    Lithographic printing plate precursor and method of preparing lithographic printing plate
    47.
    发明授权
    Lithographic printing plate precursor and method of preparing lithographic printing plate 有权
    平版印刷版前体和制备平版印刷版的方法

    公开(公告)号:US08361700B2

    公开(公告)日:2013-01-29

    申请号:US12059317

    申请日:2008-03-31

    申请人: Hidekazu Oohashi

    发明人: Hidekazu Oohashi

    IPC分类号: B41F7/00 G03F7/00

    摘要: A lithographic printing plate precursor includes: a support having a surface, a contact angle of water droplet in air on which is 70° or more; and a photosensitive layer, wherein the support has, on a surface of the support, a compound having a functional group X, the functional group X is a functional group capable of forming a chemical bond with a compound having a functional group Y which can interact with the functional group X, when the functional group X is brought into contact with the compound having a functional group Y, to adsorb the compound having a functional group Y on the surface of the support so as to decrease the contact angle of water droplet in air on the surface of the support to 30° or less.

    摘要翻译: 平版印刷版原版包括:具有表面的支撑体,其上为70°以上的空气中的水滴的接触角; 和感光层,其中载体在载体的表面上具有具有官能团X的化合物,官能团X是能够与具有可相互作用的官能团Y的化合物形成化学键的官能团 与官能团X相接触时,当官能团X与具有官能团Y的化合物接触时,将具有官能团Y的化合物吸附在载体的表面上,以便降低水滴的接触角 支撑体表面的空气为30°以下。