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32 条记录 (耗时 0.027 秒)

    Thermal waterless lithographic printing plate
    4.
    发明授权
    Thermal waterless lithographic printing plate 失效
    无水平版印刷版

    公开(公告)号：US5919600A

    公开(公告)日：1999-07-06

    申请号：US128887

    申请日：1998-08-04

    申请人： Jianbing Huang ,  S. Peter Pappas ,  Shashikant Saraiya ,  Thi Nguyen Do ,  Richard M. Goodman

    发明人： Jianbing Huang ,  S. Peter Pappas ,  Shashikant Saraiya ,  Thi Nguyen Do ,  Richard M. Goodman

    IPC分类号： G03F7/00 ,  B41C1/10 ,  B41N1/00 ,  B41N1/14 ,  G03F7/32 ,  G03C1/76

    CPC分类号： B41C1/1016 ,  B41N1/003 ,  B41C2201/02 ,  B41C2201/12 ,  B41C2201/14 ,  B41C2210/02 ,  B41C2210/12 ,  B41C2210/16 ,  B41C2210/24 ,  Y10S430/145

    摘要： A waterless or driographic printing plate which can be thermally imaged by an infrared laser is composed of a substrate; a thermal imaging layer containing a photothermal conversion material, such as an infrared absorbing material, and a thermoplastic polyurethane with pendent allyl groups; and a crosslinked silicone polymer top layer. It was discovered that when the imaging layer contains an allyl functional polyurethane mixed with an infrared absorbing dye or pigment, the polymeric layer will have enhanced solubility in certain solvents when exposed to infrared radiation. In addition, the polymeric layer continues to exhibit excellent adhesion to the silicone in unexposed areas so that the infrared absorbing layer can endure development with a suitable organic solvent, or a solvent mixture. Mild brushing or rubbing with the developing solvent readily removes laser-struck portions of the infrared imaging layer while unexposed areas remain firmly intact.

    摘要翻译： 可通过红外激光热成像的无水或流体印刷版由基板构成; 包含光热转换材料如红外吸收材料的热成像层和具有侧链烯丙基的热塑性聚氨酯; 和交联的硅氧烷聚合物顶层。 已经发现，当成像层含有与红外吸收染料或颜料混合的烯丙基官能聚氨酯时，当暴露于红外辐射时，聚合物层将在某些溶剂中具有增强的溶解度。 此外，聚合物层在未曝光区域中继续表现出对硅酮的优异粘合性，使得红外线吸收层可以用合适的有机溶剂或溶剂混合物持续显影。 用显影溶剂进行轻度刷涂或摩擦可以很容易地去除红外成像层的激光打击部分，而未曝光的区域保持牢固地完整。

    Radiation sensitive diazo sulfo-acrylic adducts and method for producing a printing plate
    5.
    发明授权
    Radiation sensitive diazo sulfo-acrylic adducts and method for producing a printing plate 失效
    辐射敏感重氮磺基丙烯酸加合物及其印刷方法

    公开(公告)号：US5846685A

    公开(公告)日：1998-12-08

    申请号：US797675

    申请日：1997-01-31

    申请人： S. Peter Pappas ,  Jianbing Huang ,  Ajay Shah ,  Shashikant Saraiya

    发明人： S. Peter Pappas ,  Jianbing Huang ,  Ajay Shah ,  Shashikant Saraiya

    IPC分类号： G03F7/021 ,  G03F7/095

    CPC分类号： G03F7/021

    摘要： A radiation sensitive composition containing an adduct of a diazonium resin having pendant diazonium groups, with a sulfonated acrylic copolymer having pendant sulfonate groups. The sulfonated acrylic copolymer contains an acrylic moiety and a sulfonated styryl or acrylic moiety. The copolymer may optionally contain styryl moieties. The composition is useful as a radiation sensitive layer in imaging elements for graphic arts applications and is particularly useful in preparing durable, long-wear, printing plates.

    摘要翻译： 一种辐射敏感性组合物，其含有具有侧面重氮基团的重氮化合物的加合物和具有磺酸根基侧基的磺化丙烯酸共聚物。 磺化丙烯酸共聚物含有丙烯酸部分和磺化苯乙烯基或丙烯酸部分。 共聚物可以任选地含有苯乙烯基部分。 该组合物可用作用于图形艺术应用的成像元件中的辐射敏感层，并且在制备耐用的长寿命印刷版中特别有用。

    Substrate improvements for thermally imageable composition and methods of preparation
    6.
    发明授权
    Substrate improvements for thermally imageable composition and methods of preparation 失效
    可热成像组合物的基材改进和制备方法

    公开(公告)号：US06692890B2

    公开(公告)日：2004-02-17

    申请号：US09826315

    申请日：2001-04-04

    申请人： Jen-Chi Huang ,  Xing-Fu Zhong ,  S. Peter Pappas ,  Shashikant Saraiya

    发明人： Jen-Chi Huang ,  Xing-Fu Zhong ,  S. Peter Pappas ,  Shashikant Saraiya

    IPC分类号： G03F700

    CPC分类号： B41C1/1025 ,  B41C2201/04 ,  B41C2210/04 ,  B41C2210/06 ,  B41C2210/10 ,  B41C2210/24 ,  B41C2210/262 ,  B41N3/03 ,  B41N3/038

    摘要： The present invention includes a radiation-imageable element for lithographic printing having a hydrophilic anodized aluminum base with a surface having pores and a image-forming layer having polymer particles coated on the aluminum base. The ratio of the average pore diameter to the average particle diameter is from 0.4:1 to 10:1. The present invention further includes a method of producing the imaged element. The method includes the steps of imagewise exposing the radiation-imageable element to radiation to produce exposed and unexposed regions and contacting the imagewise exposed radiation-imageable element and a developer to remove the exposed or the unexposed regions.

    摘要翻译： 本发明包括用于平版印刷的可辐射成像元件，其具有具有孔的表面的亲水阳极化铝基底和具有涂覆在铝基底上的聚合物颗粒的图像形成层。 平均孔径与平均粒径之比为0.4:1〜10:1。 本发明还包括一种制造成像元件的方法。 该方法包括以下步骤：将可辐射成像元件成像曝光到辐射以产生曝光和未曝光区域，并使图像曝光的可辐射成像元件和显影剂接触以去除曝光或未曝光区域。

    Radiation sensitive lithographic printing plate precursors having ablation-free imageable composition and method
    8.
    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

    申请人： Xing-Fu Zhong ,  Shashikant Saraiya ,  S. Peter Pappas

    发明人： Xing-Fu Zhong ,  Shashikant Saraiya ,  S. Peter Pappas

    IPC分类号： G03F716

    CPC分类号： B41C1/1016 ,  B41C2201/04 ,  B41C2201/14 ,  B41C2210/04 ,  B41C2210/08 ,  B41C2210/24 ,  G03F7/202 ,  Y10S430/165

    摘要： 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.

    摘要翻译： 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。

    Digital printing plate comprising a thermal mask
    10.
    发明授权
    Digital printing plate comprising a thermal mask 失效
    包括热掩模的数字印版

    公开(公告)号：US5948596A

    公开(公告)日：1999-09-07

    申请号：US863770

    申请日：1997-05-27

    申请人： Xing-Fu Zhong ,  Ken-ichi Shimazu ,  S. Peter Pappas ,  Tore Harms ,  Thi Do ,  Shashikant Saraiya ,  William P. Keaveney

    发明人： Xing-Fu Zhong ,  Ken-ichi Shimazu ,  S. Peter Pappas ,  Tore Harms ,  Thi Do ,  Shashikant Saraiya ,  William P. Keaveney

    IPC分类号： B41C1/10 ,  G03C1/73

    CPC分类号： B41C1/1016 ,  B41C2201/04 ,  B41C2210/02 ,  B41C2210/04 ,  B41C2210/06 ,  B41C2210/16 ,  B41C2210/24

    摘要： Presensitized lithographic plates are prepared which permit direct formation of printable images on plates by digital computerization without the intervening formation of a photographic image with a quality that allows the plates to be used for high volume printing applications. The lithographic printing plate has a structure which contains a substrate; a positive or negative working photosensitive layer; and a thermally sensitive masking layer which is opaque to the actinic radiation but which is soluble in an aqueous medium. The masking layer contains a heat softenable disperse phase which is insoluble in the aqueous medium; a polymeric continuous phase which is soluble or swellable in the aqueous medium; and a colorant which strongly absorbs radiant energy and converts the radiant energy to heat. In use the masking layer is digitally exposed to a computer controlled laser image so that exposed image areas of the masking are insolublized in the aqueous medium; soluble areas of the mask layer are then removed to form an opaque image mask on the photosensitive layer which is then exposed to actinic radiation passing through the mask to solubilize or insolubilize exposed areas of the photosensitive layer; the photosensitive layer is then developed with the developer liquid to remove the soluble areas and any overlying mask areas to form the lithographic printing plate. Both wet and waterless lithographic printing plates may be digitally prepared in this manner.

    摘要翻译： 制备预感光刻平板，其允许通过数字计算机化在板上直接形成可印刷图像，而不用介质形成摄影图像，其质量允许将板用于大容量印刷应用。 平版印刷版具有包含基板的结构; 正或负工作感光层; 以及对光化辐射不透明但可溶于水性介质的热敏屏蔽层。 掩蔽层含有不溶于水介质的可热软化分散相; 在水性介质中可溶或溶胀的聚合物连续相; 以及强烈吸收辐射能并将辐射能转化为热的着色剂。 在使用中，掩模层被数字地暴露于计算机控制的激光图像，使得掩蔽的曝光图像区域在水性介质中被分散; 然后去除掩模层的可溶性区域以在感光层上形成不透明图像掩模，然后将其暴露于通过掩模的光化辐射，以增溶或不溶化感光层的曝光区域; 然后用显影剂液体显影感光层以除去可溶性区域和任何覆盖的掩模区域以形成平版印刷版。 湿式和无水平版印刷版可以以这种方式数字地制备。