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    Lithographic printing process
    571.
    发明申请
    Lithographic printing process 失效
    平版印刷工艺

    公开(公告)号：US20020012881A1

    公开(公告)日：2002-01-31

    申请号：US09835563

    申请日：2001-04-17

    Inventor： Toshifumi Inno ,  Hiromichi Tachikawa ,  Keiji Akiyama

    IPC: G03C007/26 ,  B41C001/10

    CPC classification number: C09B23/0066 ,  B41C1/1008 ,  B41C1/1016 ,  B41C2201/02 ,  B41C2201/12 ,  B41C2201/14 ,  B41C2210/02 ,  B41C2210/08 ,  B41C2210/22 ,  B41C2210/24 ,  B41C2210/262 ,  C09B23/0008 ,  C09B23/0016 ,  C09B23/086 ,  C09B55/002 ,  C09D11/0235

    Abstract: A hydrophilic layer and an overcoat layer are provided in this order on a heat-sensitive layer having an ink receiving surface, so as to form an original (plate) for a lithographic printing plate. The overcoat layer can be removed during printing. A system capable of forming an inorganic hydrophilic matrix by sol-gel conversion is provided in the hydrophilic layer. Adhesion between the heat-sensitive layer and the hydrophilic layer decreases in a heated region through image processing. Emulsion ink is supplied to the plate surface during printing, whereby the overcoat layer and the hydrophilic layer at an image portion are removed with a hydrophilic component of the emulsion ink. Thus, with a heat-sensitive original that can be subjected to heat-mode prepress using laser exposure, good printed matter can be stably obtained, irrespective of balance between image and non-image portions, without using wetting water.

    Abstract translation: 在具有油墨接收表面的热敏层上依次提供亲水层和外涂层，以形成用于平版印刷版的原版（印版）。 在印刷过程中可以除去外涂层。 在亲水层中提供能够通过溶胶 - 凝胶转化形成无机亲水基质的体系。 通过图像处理，热敏层与亲水层之间的粘附性在加热区域中降低。 在印刷过程中将乳液油墨供应到印版表面，由此用乳液油墨的亲水组分除去图像部分的外涂层和亲水层。 因此，使用可以使用激光曝光进行热模式印前的热敏原件，可以稳定地获得良好的印刷物，而不用图像和非图像部分之间的平衡，而不使用润湿水。

    RADIATION-SENSITIVE MIXTURES COMPRISING IR-ABSORBING CYANINE DYES HAVING A BETAINE STRUCTURE OR HAVING A BETAINE STRUCTURE AND CONTAINING AN ANION, AND RECORDING MATERIALS PREPARED THEREWITH
    572.
    发明申请
    RADIATION-SENSITIVE MIXTURES COMPRISING IR-ABSORBING CYANINE DYES HAVING A BETAINE STRUCTURE OR HAVING A BETAINE STRUCTURE AND CONTAINING AN ANION, AND RECORDING MATERIALS PREPARED THEREWITH 有权

    公开(公告)号：US20020006575A1

    公开(公告)日：2002-01-17

    申请号：US09362857

    申请日：1999-07-29

    Applicant: Otfried Gaschler

    Inventor： OTFRIED GASCHLER ,  ANDREAS ELSAESSER ,  JOERG JUNG ,  HANS-JOACHIM SCHLOSSER

    IPC: G03F007/00 ,  G03F007/26 ,  G03F007/09 ,  G03F007/40

    CPC classification number: B41C1/1008 ,  B41C1/1016 ,  B41C2201/02 ,  B41C2201/14 ,  B41C2210/02 ,  B41C2210/06 ,  B41C2210/20 ,  B41C2210/22 ,  B41C2210/24 ,  B41C2210/262 ,  Y10S430/106 ,  Y10S430/127 ,  Y10S430/145

    Abstract: The invention relates to a positive-working, radiation-sensitive mixture which contains an organic polymeric binder which is insoluble in water but soluble or at least swellable in aqueous alkaline solution and at least one IR-absorbing cyanine dye having a betaine structure or having a betaine structure and containing an anion and having the formula (I) 1 in which R1 to R8 independently of one another, are a hydrogen or halogen atom, a sulfonate, carboxylate, phosphonate, hydroxyl, (C1-C4)alkoxy, nitro, amino, (C1-C4)alkylamino, di(C1-C4)alkylamino group or a (C6-C10)aryl group which in turn may be substituted by one or more halogen atoms and/or one or more sulfonate, carboxylate, phosphonate, hydroxyl, (C1-C4)alkoxy, nitro, amino, (C1-C4)alkylamino and/or di(C1-C4)alkylamnino groups, R9 and R10 independently of one another, are a straight-chain or branched (C1-C6)alkyl, a (C7-C6)aralkyl or a (C6-C10)aryl group, each of which in turn may be substituted by one or more halogen atoms and/or one or more sulfonate, carboxylate, phosphonate, hydroxyl, (C1-C4)alkoxy, nitro, amino, (C1-C4)alkylamino and/or di(C1-C4)alkylamino groups, R11 and R12 independently of one another, are (C1-C4)alkyl or (C6-C10)aryl groups which in turn may be substituted, Z1 and Z2 independently of one another, are a sulfur atom, a di(C1-C4)alkylmethylene group or an ethene-1,2-diyl group and A is a carbon atom or a chain having conjugated double bonds which results in the formation of a delocalized II-electron system between the quaternary nitrogen atom of the 3H-indolium, quinolinium or benzothiazolium radical and the enolate oxygen atom of the pyrimidine-2,4,6-trione radical. After imagewise exposure to a laser, the recording material prepared using this mixture can be readily developed with an aqueous alkaline solution without additional processing steps (such as post-bake or postexposure). The invention also relates to a process for the production of printing plates for offset printing from a recording material according to the invention.

    Planographic printing plate
    573.
    发明申请
    Planographic printing plate 失效
    平版印刷版

    公开(公告)号：US20010041305A1

    公开(公告)日：2001-11-15

    申请号：US09730842

    申请日：2000-12-07

    Inventor： Hirokazu Sawada ,  Hisashi Hotta ,  Akio Uesugi ,  Hirokazu Sasaki ,  Tadashi Endo

    IPC: G03F007/09

    CPC classification number: B41N1/083 ,  B41C1/1008 ,  B41C1/1016 ,  B41C2201/02 ,  B41C2201/14 ,  B41C2210/04 ,  B41C2210/06 ,  B41C2210/22 ,  B41C2210/24 ,  B41C2210/262 ,  C22C21/00 ,  Y10S430/145 ,  Y10S430/146 ,  Y10S430/148 ,  Y10S430/165

    Abstract: A planographic printing plate precursor comprising: an aluminum substrate which has been subjected to a roughening treatment and an anodizing treatment; and a photosensitive layer which provided on a surface of said substrate, and which contains an infrared absorbing agent and a water-insoluble and alkali aqueous solution-soluble polymer compound, and whose solubility in an alkali developing solution varies by infrared laser exposure, wherein said substrate is obtained by electrochemically roughening an aluminum alloy plate which contains a trace amount of certain elements to an aluminum alloy of high purity.

    Abstract translation: 一种平版印刷版原版，其特征在于，包括：经过粗糙化处理和阳极氧化处理的铝基板; 以及设置在所述基板的表面上并含有红外线吸收剂和水不溶性碱性水溶性高分子化合物的感光层，其在碱性显影液中的溶解度因红外线激光曝光而变化，其特征在于， 通过将含有微量某些元素的铝合金板电化学粗糙化成高纯度的铝合金而获得基板。

    Plate-making method, plate-making apparatus used in such plate-making method, and image recording material
    576.
    发明申请
    Plate-making method, plate-making apparatus used in such plate-making method, and image recording material 失效
    制版方法，制版方法中使用的制版装置和图像记录材料

    公开(公告)号：US20010003032A1

    公开(公告)日：2001-06-07

    申请号：US09726507

    申请日：2000-12-01

    Inventor： Akinori Harada ,  Nobufumi Mori

    IPC: G03F007/038 ,  G03F007/30 ,  B41J002/47 ,  G03F007/20 ,  G03F007/09

    CPC classification number: B41M5/368 ,  B41C1/1008 ,  B41C1/1016 ,  B41C1/1025 ,  B41C1/1041 ,  B41C2201/02 ,  B41C2201/14 ,  B41C2210/02 ,  B41C2210/04 ,  B41C2210/06 ,  B41C2210/24 ,  G03F7/2055 ,  Y10S430/146

    Abstract: A plate-making method is capable of recording a sharp image on a photosensitive plate, and is applicable to a process operation executed in a light room, while adverse influences caused by laser flares can be hardly received. Ultra-short pulse laser light emitted from a Ti:Al2O3 laser light source is modulated by an AOM (acousto-optic modulating element). The modulated laser light is focused by a collective lens onto a high-sensitive photopolymer layer of a photosensitive plate-making material. The focused ultra-short pulse laser light may cause a photopolymerization reaction in a laser-light-irradiated portion of the high-sensitive photopolymer layer by way of a multiple photon absorption phenomenon, so as to form a hardened portion.

    Abstract translation: 制版方法能够在感光板上记录清晰的图像，并且适用于在光室中执行的处理操作，同时难以接收到由激光耀斑引起的不利影响。 由Ti：Al2O3激光源发射的超短脉冲激光由AOM（声光调制元件）调制。 调制的激光由集体透镜聚焦到感光制版材料的高灵敏度感光聚合物层上。 聚焦超短脉冲激光可以通过多光子吸收现象在高灵敏度感光聚合物层的激光照射部分中引起光聚合反应，从而形成硬化部分。

    Positive photosensitive composition for use with an infrared laser
    577.
    发明授权
    Positive photosensitive composition for use with an infrared laser 有权
    用于红外激光的正光敏组合物

    公开(公告)号：US6117613A

    公开(公告)日：2000-09-12

    申请号：US152064

    申请日：1998-09-11

    Applicant: Ikuo Kawauchi ,  Takeshi Kimura

    Inventor： Ikuo Kawauchi ,  Takeshi Kimura

    IPC: B41C1/10 ,  B41M5/36 ,  G03F7/004

    CPC classification number: B41C1/1008 ,  B41C1/1016 ,  B41C2201/02 ,  B41C2201/04 ,  B41C2201/12 ,  B41C2201/14 ,  B41C2210/02 ,  B41C2210/06 ,  B41C2210/22 ,  B41C2210/24 ,  B41C2210/262

    Abstract: A positive photosensitive composition for use with an infrared laser comprises one or more alkali aqueous solution soluble polymer compounds (A) having in a molecule at least one group selected from a phenolic hydroxide group (a-1), a sulfonamide group (a-2), and an active imide group (a-3); a compound (B) which has an I/O value (Y) satisfying a relationship 0.05.ltoreq..vertline.X-Y.vertline..ltoreq.0.5 wherein X is an I/O value of the polymer compound (A), and which is compatible with the polymer compound (A) thereby lowering solubility of the polymer compound (A) into an alkali aqueous solution, an effect of lowering the solubility being reduced by heating; and a compound (C) which generates heat upon absorbing light. The photosensitive composition does not contain any compound having a thermal decomposition temperature of 150.degree. C. or less. Alternatively, the photosensitive composition may comprise a compound which generates heat upon absorbing light; an alkali aqueous solution soluble resin having a phenolic hydroxide group; and a compound represented by R.sup.1 CO--X--R.sup.2 (wherein X represents O, S or NR.sup.3 ; R.sup.1 represents an alkyl group or alkenyl group which has 6-32 carbon atoms, R.sup.2 and R.sup.3 represent a hydrogen atom, or an alkyl group or alkenyl group or aryl group each of which has 1-18 carbon atoms).

    Abstract translation: 用于红外线激光的正性感光性组合物包含一种或多种碱溶性水溶性高分子化合物（A），其在分子中具有至少一个选自氢氧化物基团（a-1），磺酰胺基（a-2） ）和活性酰亚胺基（a-3）; 具有满足关系0.05

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