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公开(公告)号：US5385092A
公开(公告)日：1995-01-31
申请号：US159955
申请日：1993-11-29
申请人： Thomas E. Lewis , Richard A. Williams , Frank G. Pensavecchia , John F. Kline , John P. Gardiner
发明人： Thomas E. Lewis , Richard A. Williams , Frank G. Pensavecchia , John F. Kline , John P. Gardiner
CPC分类号： B41N1/003 , B41C1/1033 , B41J19/20 , B41J2/451 , B41J2/47 , B41N1/14 , B41C1/1008 , B41C2201/02 , B41C2201/04 , B41C2210/02 , B41C2210/04 , B41C2210/20 , B41C2210/24 , B41P2227/70 , Y10S430/165
摘要： Apparatus and methods for imaging lithographic plates using laser devices that emit in the near-infrared region, and plates suitable for imaging with the apparatus and methods. Laser output either ablates one or more plate layers or physically transforms a surface layer, in either case resulting in an imagewise pattern of features on the plate. The image features exhibit an affinity for ink or an ink-abhesive fluid that differs from that of unexposed areas.
摘要翻译： 使用在近红外区域发射的激光装置对平版印刷版成像的装置和方法，以及适于使用该装置和方法进行成像的板。 激光输出可以消除一个或多个平板层或物理地转换表面层，在任一种情况下导致板上特征的成像图案。 图像特征表现出与未曝光区域不同的墨水或墨水粘合流体的亲合性。
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62.发明授权Lithographic printing plates containing image-support pigments and methods of printing therewith 失效含有图像支持颜料的平版印刷版和其印刷方法
公开(公告)号：US5165345A
公开(公告)日：1992-11-24
申请号：US661526
申请日：1991-02-25
申请人： Thomas E. Lewis , Michael T. Nowak
发明人： Thomas E. Lewis , Michael T. Nowak
CPC分类号： B41N3/03 , B41C1/1033 , B41N1/003 , B41P2227/70 , B41P2235/23
摘要： A lithographic printing plate that is transformable by spark-discharge techniques so as to change its affinity for ink. The plate features a layered structure including an ink-receptive substrate, a conductive layer and an ink-repellent coating. The ink-repellent coating contains a dispersion of image-support pigments that promote straight-line travel of the spark to the surface of the plate, thereby promoting accurate imaging.
摘要翻译： 平版印刷版，可通过火花放电技术转化，以改变其对油墨的亲和力。 该板具有层状结构，其包括油墨接收基板，导电层和拒墨涂层。 防墨涂层含有图像支持颜料的分散体，其促进火花直线移动到板的表面，从而促进精确的成像。
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63.发明授权Method of extending the useful life and enhancing performance of lithographic printing plates 失效延长平版印刷版的使用寿命和提高性能的方法
公开(公告)号：US5161465A
公开(公告)日：1992-11-10
申请号：US661437
申请日：1991-02-25
申请人： Thomas E. Lewis , Michael T. Nowak
发明人： Thomas E. Lewis , Michael T. Nowak
CPC分类号： B41C1/1033 , B41N3/08 , B41C2210/16 , B41P2227/70 , B41P2235/23
摘要： A method of extending the useful life and/or enhancing the performance of wet or dry lithographic printing plates. A strong curable composition that adheres to the ink-receptive plate areas is first applied to an imaged plate. After removal of the composition from non-image plate areas, it is cured, thereby augmenting the resilience of the ink-receptive plate areas. If imaging of the plate results in surface recesses, the cured composition can enhance plate performance by making the entire surface coplanar.
摘要翻译： 延长使用寿命和/或提高湿或干平版印刷版的性能的方法。 首先将附着在油墨接收板区域上的强固化组合物施加到成像板上。 在从非图像印版区域去除组合物之后，其被固化，从而增强了油墨接收板区域的弹性。 如果板的成像导致表面凹陷，则固化的组合物可以通过使整个表面共面而增强板的性能。
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64.发明授权Method and means for controlling overburn in spark-imaged lithography plates 失效用于控制火花成像光刻板超燃烧的方法和装置
公开(公告)号：US5052292A
公开(公告)日：1991-10-01
申请号：US644490
申请日：1991-01-18
申请人： Thomas E. Lewis , Michael T. Nowak
发明人： Thomas E. Lewis , Michael T. Nowak
IPC分类号： B41C1/10
CPC分类号： B41C1/1033
摘要： A method of controlling unwanted degradation of overlapping image points in a sparked-imaged lithographic plate. A suitable conductive sheet having an appropriately selected volume resistivity is placed beneath the conductive metal sheet of the plate, thereby drawing off excess spark energy during the imaging process.
摘要翻译： 一种控制火花成像光刻板中重叠图像点的不希望的退化的方法。 具有适当选择的体积电阻率的合适的导电片被放置在板的导电金属片之下，从而在成像过程中消除多余的火花能。
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公开(公告)号：US5005479A
公开(公告)日：1991-04-09
申请号：US413172
申请日：1989-09-27
CPC分类号： B41C1/04 , B41C1/1033 , B41C1/1066 , B41F7/02 , B41C2210/16 , B41P2227/70 , B41P2235/23 , Y10S428/908 , Y10T428/24521
摘要： A method of imaging a lithographic plate having a printing surface comprising mounting a plate to the plate cylinders of a lithographic press having at least two plate cylinders, a corresponding number of blanket cylinders and an impression cylinder, exposing the printing surface to spark discharges between each plate and an electrode spaced close to the printing surface produced in response to picture signals, the spark discharges producing sufficient heat to change the affinity of each printing surface for printing liquid at the points thereof exposed to the spark discharges thereby producing image spots on each plate corresponding to the picture signals, moving the electrode relative to the plate to effect a scan of the printing surface, and controlling the spark discharges to the plate in accordance with picture signals so that they occur at selected points in the scan so as to form an image of the original document on the printing surface. Imaging apparatus is also disclosed.
摘要翻译： 一种对具有印刷表面的平版印刷板进行成像的方法，包括将平板安装到具有至少两个印版滚筒，相应数量的橡皮滚筒和压印滚筒的平版印刷机的印版滚筒上，使印刷表面暴露于每个 板和靠近与图像信号产生的印刷表面隔开的电极，火花放电产生足够的热量以改变在暴露于火花放电的点处的打印液体的每个印刷表面的亲和性，从而在每个板上产生图像斑点 对应于图像信号，使电极相对于板移动以对印刷表面进行扫描，并根据图像信号控制火花放电到板上，使得它们出现在扫描中的选定点，以形成 原始文件在打印面上的图像。 还公开了成像设备。
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公开(公告)号：US4947750A
公开(公告)日：1990-08-14
申请号：US410604
申请日：1989-09-21
IPC分类号： B41C1/10
CPC分类号： B41C1/1033 , B41P2227/70 , B41P2235/23 , Y10S430/165
摘要： A printing member for a press with dampening made by forming on a metal body, e.g. of aluminum, an exposed oxidized surface with a grained surface structure which renders that surface hydrophilic and heating the body surface at selected image points thereon without contacting the surface so that there is a transformation of the surface structure which renders it hydrophobic at the image points.
摘要翻译： 一种用于通过在金属体上形成的具有阻尼的压力机的印刷构件，例如， 的铝，具有纹理表面结构的暴露的氧化表面，其使得该表面亲水并且在其上的选定图像点处加热身体表面而不接触表面，使得在图像点处具有疏水性的表面结构的转变。
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公开(公告)号：US4036136A
公开(公告)日：1977-07-19
申请号：US558300
申请日：1975-03-14
申请人： Tohru Takagi
发明人： Tohru Takagi
CPC分类号： B41N3/032 , B41C1/1033 , Y10S101/37
摘要： A method for producing a plate or sheet useful in planographic printing which is characterized in that the surface of an oleophilic body comprising oleophilic resin is subjected to a corona discharge treatment to form a hydrophilic layer on said surface, and that said method can be carried out without difficulty at a low cost and the reproducibility of the printing plate thereby produced is excellent.
摘要翻译： 一种用于平版印刷的板或片的制造方法，其特征在于，对含有亲油性树脂的亲油性物质的表面进行电晕放电处理，以在所述表面上形成亲水层，并且可以进行所述方法 以低成本无困难，并且由此制备的印版的再现性优异。
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公开(公告)号：US2951441A
公开(公告)日：1960-09-06
申请号：US55941556
申请日：1956-01-16
申请人： TIMEFAX CORP
发明人： MURRAY WOLF , DALTON HAROLD R
CPC分类号： B41C1/1033 , B41N1/14 , Y10T428/31765 , Y10T428/31775 , Y10T428/31928
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