On-press exposure and on-press processing of a lithographic material
    331.
    发明授权
    On-press exposure and on-press processing of a lithographic material 失效
    压制曝光和平版印刷材料的印刷加工

    公开(公告)号:US06789480B2

    公开(公告)日:2004-09-14

    申请号:US10068017

    申请日:2002-02-05

    Abstract: A method of lithographic printing is disclosed which comprises the steps of unwinding a web of an imaging material from a supply spool, the imaging material comprising (1) a flexible lithographic base having a hydrophilic surface and (2) an image-recording layer which is removable in a single-fluid ink or can be rendered removable in a single-fluid ink by exposure to heat or light, wrapping the imaging material around a cylinder of a printing press, image-wise exposing the image-recording layer to heat or light, processing the image-recording layer by supplying single-fluid ink, thereby obtaining a printing master, printing by supplying single-fluid ink to the printing master which is mounted on a plate cylinder of the printing press, removing the printing master from the plate cylinder, preferably by winding up on an uptake spool. Since the image-recording layer can be processed by single-fluid ink, the imaging material is suitable for on-press processing in printing presses wherein no fountain solution is supplied to the plate. The method allows a rapid, fully automatic plate change with reduced press down time.

    Abstract translation: 公开了一种平版印刷方法,其包括以下步骤:从供应卷轴开卷成像材料的卷材,所述成像材料包括(1)具有亲水表面的柔性平版印刷基底和(2)图像记录层, 可以在单流体墨水中移除,或者可以通过暴露于热或光而在单流体墨水中可移除,将成像材料包裹在印刷机的圆筒上,以图像方式将图像记录层暴露于热或光 通过供应单流体油墨来处理图像记录层,从而获得印刷母版,通过向安装在印刷机的印版滚筒上的印刷母版提供单一流体油墨进行印刷,从印版移除印刷母版 圆柱体,优选通过卷绕在摄影卷轴上。 由于图像记录层可以通过单流体油墨进行处理,所以成像材料适用于印刷机中的印刷加工,其中没有向板提供润版液。 该方法允许快速,全自动的板更换,减少压下时间。

    Lithographic printing plate precursor
    334.
    发明申请

    公开(公告)号:US20040106060A1

    公开(公告)日:2004-06-03

    申请号:US10715454

    申请日:2003-11-19

    Inventor: Kazuo Maemoto

    Abstract: A lithographic printing plate precursor is disclosed, comprising a hydrophilic support having thereon a heat-sensitive layer containing either a microcapsule containing a compound having a functional group capable of reacting by heat or a fine particulate polymer, wherein (1) when the heat-sensitive layer contains a fine particulate polymer, the fine particulate polymer may be a fine particulate polymer capable of combining or incapable of combining by heat used for the image formation and the fine particulate polymer has a functional group capable of reacting with a functional group present in another fine particulate polymer or with a functional group present in another component in the heat-sensitive layer; or (2) when the heat-sensitive layer contains a microcapsule containing a compound having a functional group capable of reacting by heat, the microcapsule may be a microcapsule having an outer wall capable of rupturing or incapable of rupturing by heat used for the image formation and a light-to-heat converting material is contained in the heat-sensitive layer or in a layer adjacent thereto.

    Printing plate precursor, image forming method employing the same, and printing method
    335.
    发明授权
    Printing plate precursor, image forming method employing the same, and printing method 失效
    印版前体,使用其的成像方法和印刷方法

    公开(公告)号:US06737218B2

    公开(公告)日:2004-05-18

    申请号:US10161432

    申请日:2002-05-30

    Applicant: Takahiro Mori

    Inventor: Takahiro Mori

    Abstract: Disclosed is a printing plate precursor comprising a substrate and provided thereon, a layer containing a light heat conversion material, wherein the light heat conversion material does not substantially change in nature when allowed to stand in a temperature atmosphere of 400 to 500° C. for 10 minutes or a printing plate precursor comprising a substrate and provided thereon, a hydrophilic layer which is porous, wherein the hydrophilic layer contains a carbon atom-free material in an amount of not less than 91% by weight.

    Abstract translation: 公开了一种印版前体,其包含基板并且设置在其上,包含轻热转换材料的层,其中当在400-500℃的温度气氛中放置时,所述光热转换材料本质上基本上不改变, 10分钟或包含基材并设置在其上的印版前体,多孔的亲水层,其中亲水层含有不少于91重量%的不含碳原子的材料。

    Polymerizable compounds with quadruple hydrogen bond forming groups
    336.
    发明申请
    Polymerizable compounds with quadruple hydrogen bond forming groups 失效
    具有四氢键形成基团的可聚合化合物

    公开(公告)号:US20040091812A1

    公开(公告)日:2004-05-13

    申请号:US10290623

    申请日:2002-11-08

    Abstract: QHB-Modified free radical polymerizable compounds and free radical polymerizable compositions that comprise these compounds are disclosed. A QBH-modified free radical polymerizable compound has at least one moiety that comprises at least one free radical polymerizable group; a supporting backbone, and at least one and preferably at least two moieties capable of forming four or more, typically four, hydrogen bonds with similar or complementary units on other molecules or portions of molecules. Free radical polymerizable compositions that contain these compounds may be used in any of the well-known applications for free radical polymerizable compositions. They are especially useful for the formation of imageable elements useful as lithographic printing plate precursors.

    Abstract translation: 公开了QHB改性的可自由基聚合的化合物和包含这些化合物的自由基可聚合组合物。 QBH改性的自由基聚合性化合物具有至少一个包含至少一个可自由基聚合基团的部分; 支链骨架,以及能与其他分子或分子部分上的相似或互补单元形成四个或更多,通常四个氢键的至少一个,优选至少两个部分。 含有这些化合物的自由基可聚合组合物可用于任何用于自由基可聚合组合物的众所周知的应用。 它们对于形成可用作平版印刷版前体的可成像元件特别有用。

    Hetero-substituted aryl acetic acid co-initiators for IR-sensitive compositions
    337.
    发明申请
    Hetero-substituted aryl acetic acid co-initiators for IR-sensitive compositions 审中-公开
    用于IR敏感组合物的异取代芳基乙酸共引发剂

    公开(公告)号:US20040091811A1

    公开(公告)日:2004-05-13

    申请号:US10283757

    申请日:2002-10-30

    Abstract: An IR-sensitive composition comprising, in addition to a polymeric binder, a free radical polymerizable system consisting of at least one member selected from unsaturated free radical polymerizable monomers, oligomers which are free radical polymerizable, and polymers containing CnullC bonds in the back bone and/or in the side chain groups and an initiator system, wherein the initiator system comprises the following components: (a) at least one material capable of absorbing IR radiation, (b) at least one compound capable of producing radicals and (c) at least one hereto-substituted arylacetic acid co-initiator compound indicated by the following general structures: 1 where X is either nitrogen, oxygen or sulfur, Ar is any substituted or unsubstituted aryl ring and R is any subconstituent.

    Abstract translation: 一种IR敏感性组合物,其包含除了聚合物粘合剂之外的由至少一种选自不饱和可自由基聚合的单体,可自由基聚合的低聚物和在背面含有C = C键的聚合物组成的自由基可聚合体系 骨和/或侧链基团和引发剂体系,其中引发剂体系包含以下组分:(a)至少一种能够吸收IR辐射的材料,(b)至少一种能够产生自由基的化合物和(c )至少一种由以下一般结构表示的取代的芳基乙酸共引发剂化合物:其中X为氮,氧或硫,Ar为任何取代或未取代的芳基环,R为任何亚基取代基。

    Negative lithographic printing plate comprising a specific compound in the photosensitive layer
    338.
    发明授权
    Negative lithographic printing plate comprising a specific compound in the photosensitive layer 有权
    在感光层中包含特定化合物的负版印刷版

    公开(公告)号:US06723493B2

    公开(公告)日:2004-04-20

    申请号:US10395641

    申请日:2003-03-24

    Abstract: Lithographic printing plates having on a hydrophilic substrate an oleophilic photosensitive layer comprising an oleophilic polymer, a free radical polymerizable monomer, and 4-piperonyl-2,6-bis(trichloromethyl)-s-triazine as free radical initiator and/or leucomalachite green as exposure indicating dye; wherein the weight ratio of the monomer to the polymer is larger than 1.0. The plates can be developed with ink and/or fountain solution on a lithographic printing press or with a non-alkaline aqueous developer comprising 60-99% by weight of water and 0.5 to 40% by weight of an alcohol solvent. A photosensitive dye can be added in the photosensitive layer to provide photosensitivity to a specific wavelength between 200 and 1200 nm. Unlike commonly used s-triazine initiator or leuco dye, 4-piperonyl-2,6-bis(trichloromethyl)-s-triazine or leucomalachite green does not insolubilize from the photosensitive layer.

    Abstract translation: 在亲水性基材上具有含亲油性聚合物,自由基聚合性单体和作为自由基引发剂的4-胡椒基-2,6-双(三氯甲基)-s-三嗪和/或紫苏绿绿的亲油感光层的平版印刷版 曝光指示染料; 其中单体与聚合物的重量比大于1.0。 这些板可以用油墨和/或润版液在平版印刷机上或与包含60-99重量%的水和0.5-40重量%的醇溶剂的非碱性水性显影剂一起显影。 可以在光敏层中加入光敏染料,以提供对200至1200nm之间的特定波长的光敏性。 与通常使用的三嗪引发剂或无色染料不同,4-胡椒基-2,6-双(三氯甲基)-s-三嗪或者白沙球绿不会使感光层不溶解。

    Negative planographic printing plate
    340.
    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。

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