Infrared-sensitive image forming material
    211.
    发明授权
    Infrared-sensitive image forming material 失效
    红外敏感成像材料

    公开(公告)号:US06727031B2

    公开(公告)日:2004-04-27

    申请号:US09765292

    申请日:2001-01-22

    Abstract: An infrared-sensitive image forming material with which a plate can be directly formed by an infrared laser. The infrared-sensitive image forming material has a support having disposed thereon a recording layer whose solubility in an aqueous alkaline solution is altered by irradiation with an infrared laser. The recording layer has a binder phase formed of a polymer compound, a dispersion phase that is dispersed in the binder phase, and an infrared absorbent present in either one of the binder phase and the dispersion phase. Within a total incorporated amount of the infrared absorbent in the recording layer, a mass present in the dispersion binder is greater than a mass present in the binder phase. Namely, within the recording layer, the infrared absorbent is localized in the dispersion phase.

    Abstract translation: 通过红外线激光可以直接形成板的红外线敏感成像材料。 红外线敏感成像材料具有在其上设置有通过用红外激光照射改变其在碱性水溶液中的溶解度的记录层的载体。 记录层具有由聚合物化合物形成的粘结相,分散在粘结相中的分散相和存在于粘结相和分散相中的任一个中的红外线吸收剂。 在记录层中总共掺入量的红外线吸收剂中,分散粘合剂中存在的质量大于粘结相中存在的质量。 也就是说,在记录层内,红外线吸收剂位于分散相中。

    Radiation sensitive lithographic printing plate precursors having ablation-free imageable composition and method
    212.
    发明授权
    Radiation sensitive lithographic printing plate precursors having ablation-free imageable composition and method 失效
    具有无消融成像组合物和方法的辐射敏感平版印刷版原版

    公开(公告)号:US06720130B1

    公开(公告)日:2004-04-13

    申请号:US10266888

    申请日:2002-10-08

    Abstract: The present invention relates to a negative-working radiation imageable lithographic printing plate precursor, preferably having only two polymeric layers on a support. The first (bottom) layer is composed of oleophilic polymers and a photothermal converter which converts radiation to heat. The second polymeric layer (top) is composed of crosslinked hydrophilic polymers which absorb aqueous fountain solution and repel ink. The oleophilic polymers in the first layer contain functional groups are interlayer chemically bonded to the hydrophilic polymer in the second layer to provide interlayer adhesive bonding between the two layers. The plate is imagewise exposed to radiation, such as with an IR laser, resulting in non-ablative adhesion-weakening between the two layers so that the plate can be developed by fountain solution and/or ink on press whereby the top layer in the exposed area is removed on the press to reveal the ink-receptive image area. The top layer in the unexposed area remains as the non-image area.

    Abstract translation: 本发明涉及一种负性可辐射成像平版印刷版原版,优选在载体上仅具有两个聚合物层。 第一(底部)层由亲油聚合物和将辐射转化为热的光热转换器组成。 第二聚合物层(顶部)由吸收润版液并排斥油墨的交联亲水聚合物组成。 第一层中含有的亲油聚合物含有官能团,在第二层中与亲水性聚合物中间化学键合,以提供两层之间的层间粘合剂粘合。将该板成像曝光于辐射下,例如用IR激光, 在两层之间 - 消除粘合力弱化,使得板可以通过润版液和/或印刷机上的油墨显影,由此在印刷机上除去暴露区域中的顶层以露出吸墨图像区域。 未曝光区域中的顶层保持为非图像区域。

    Negative planographic printing plate
    214.
    发明授权
    Negative planographic printing plate 有权
    负平版印刷版

    公开(公告)号:US06716566B2

    公开(公告)日:2004-04-06

    申请号:US09895401

    申请日:2001-07-02

    Inventor: Keitaro Aoshima

    Abstract: There is provided a negative planographic printing plate which can be directly recorded based on digital data from computers and the like, excellent in storage stability, shows no reduction in sensitivity with the lapse of time, and has excellent face flatness. It comprises a substrate having disposed thereon a photosensitive layer which is obtained by applying a photosensitive layer application solution containing an infrared absorber, a compound which generates a radical or acid due to heat, a polymerizable compound or a crosslinking compound, and a silicon-based surfactant such as a siloxane/oxyethylene copolymer and the like, onto the substrate and drying the solution, and which is hardened by exposure to an infrared laser ray.

    Abstract translation: 提供了可以基于计算机等的数字数据直接记录的负型平版印刷版,存储稳定性优异,随着时间的流逝不会降低灵敏度,并且具有优异的平面度。 它包括一个其上设置有感光层的基片,该感光层是通过涂布含有红外线吸收剂的感光层涂布溶液,由于热而产生自由基或酸的化合物,聚合性化合物或交联化合物而得到的, 表面活性剂如硅氧烷/氧化乙烯共聚物等涂覆在基材上并干燥溶液,并通过暴露于红外激光进行硬化。

    Infrared sensitive composition and lithographic printing plate precursor
    215.
    发明申请
    Infrared sensitive composition and lithographic printing plate precursor 失效
    红外敏感组合物和平版印刷版前体

    公开(公告)号:US20040063029A1

    公开(公告)日:2004-04-01

    申请号:US10673450

    申请日:2003-09-30

    Abstract: An infrared sensitive composition and a lithographic printing plate precursor having a large difference in alkali solubility between the exposed portions and unexposed portions (dissolution discrimination), an excellent latitude in development, and a high sensitivity can be provided when the composition is used for the image-forming layer of a lithographic printing plate precursor, which is an infrared sensitive composition comprising an alkali-soluble resin having a phenolic hydroxyl group (A), a light-heat converting substance (B) and a leucohydroxy dye (C).

    Abstract translation: 当组合物用于图像时,可以提供红外敏感组合物和曝光部分与未曝光部分之间的碱溶性差异大(溶解判别),显影优良性和高灵敏度的平版印刷版原版 作为包含具有酚羟基(A)的碱溶性树脂,光热转换体(B)和无色染料(C))的红外线敏感性组合物的平版印刷版原版的成膜层。

    Method of making lithographic printing plate
    216.
    发明申请
    Method of making lithographic printing plate 有权
    平版印刷版的制作方法

    公开(公告)号:US20040053168A1

    公开(公告)日:2004-03-18

    申请号:US10658399

    申请日:2003-09-10

    Inventor: Hironori Ohnishi

    Abstract: A method of making a printing plate from a heat-sensitive PS plate of a positive-working mode for lithographic printing includes the steps of exposing the heat-sensitive PS plate to light and developing the PS plate using an alkaline developing solution containing at least one surfactant selected from the group consisting of anionic surfactants and ampholytic surfactants, and a salt selected from the group consisting of alkali metal salts and ammonium cation salts. The PS plate has a substrate and an image forming layer formed thereon, the image forming layer including a lower layer which is formed on the substrate and contains a water-insoluble and alkali-soluble resin and an upper heat-sensitive layer which is overlaid on the lower layer and contains a water-insoluble and alkali-soluble resin and an infrared absorption dye and exhibits an elevated solubility with respect to alkaline aqueous solutions when heated.

    Abstract translation: 从用于平版印刷的正性工作模式的热敏PS板制造印版的方法包括以下步骤:将热敏PS板曝光并使用含有至少一种 选自阴离子表面活性剂和两性表面活性剂的表面活性剂和选自碱金属盐和铵阳离子盐的盐。 PS板具有形成在其上的基板和图像形成层,图像形成层包括下层,该下层形成在基板上并且包含水不溶性和碱溶性树脂和覆盖在上面的上部热敏层 下层并含有不溶于水和碱溶性树脂和红外吸收染料,并且当加热时相对于碱性水溶液显示升高的溶解度。

    Image forming method
    219.
    发明申请
    Image forming method 审中-公开
    图像形成方法

    公开(公告)号:US20030190555A1

    公开(公告)日:2003-10-09

    申请号:US10392888

    申请日:2003-03-21

    Inventor: Hiroyuki Nagase

    Abstract: An image forming method using a negative type image forming material is disclosed, and said method comprises the steps of exposing a negative type image forming material to infrared laser imagewise, which image forming material comprises a substrate and an image recording layer formed thereon, comprising (A) a radical generator, (B) a radical-polymerizable compound, (C) an infrared absorbing agent, and (D) a binder polymer; and developing the image forming material with an alkaline developing solution comprising a weak acid or a salt thereof having a dissociation constant pka of from 10 to 13.

    Abstract translation: 公开了使用负型图像形成材料的图像形成方法,并且所述方法包括以下步骤:将负型图像形成材料成像到红外激光成像,该成像材料包括基板和形成在其上的图像记录层,包括( A)自由基发生剂,(B)可自由基聚合的化合物,(C)红外线吸收剂和(D)粘合剂聚合物; 并用含有解离常数pka为10〜13的弱酸或其盐的碱性显影液显影成像材料。

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