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公开(公告)号：US5868075A
公开(公告)日：1999-02-09
申请号：US807017
申请日：1997-02-26
CPC分类号： H04N1/047 , H04N1/1911 , B41P2227/70 , H04N1/06 , H04N2201/04729 , H04N2201/04789 , H04N2201/04791
摘要： A plate imaging apparatus and method for imaging a seamless printing member preferably loaded onto a rotating plate cylinder. The plate imaging apparatus moves a writing head in fixed increments in an axial direction relative to the plate cylinder. With the writing head fixed at a first axial position, the imaging apparatus causes a circumferential swath to be imaged onto the seamless printing member commencing from a first starting point. With the plate cylinder still rotating, the imaging apparatus then steps the writing head to the next axial position, thereby defining a second starting point once the writing head is ready to resume imaging that is offset from the first starting point. The imaging apparatus then causes a second circumferential swath to be imaged onto the seamless printing member commencing from the second starting point.
摘要翻译： 一种用于对无机印刷部件进行成像的板成像装置和方法，其优选地装载到旋转印版滚筒上。 平板成像装置相对于印版滚筒在轴向上以固定的增量移动书写头。 在书写头固定在第一轴向位置的情况下，成像装置使得圆周条纹从第一起始点成像到无缝打印构件上。 当印版滚筒仍然旋转时，成像装置然后将写入头移动到下一个轴向位置，从而在写入头准备好恢复与第一起始点偏移的成像之后限定第二起始点。 然后，成像装置使第二周向条纹从第二起始点成像到无缝打印部件上。
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公开(公告)号：US5262805A
公开(公告)日：1993-11-16
申请号：US907318
申请日：1992-07-01
申请人： John F. Kline , Keith V. Robb
发明人： John F. Kline , Keith V. Robb
CPC分类号： B23H9/06 , B23H1/022 , B41C1/1033 , B23H2300/20 , B41P2227/70 , B41P2235/23
摘要： Electrode-driver circuits for use with non-contact spark-discharge imaging systems. The circuits rapidly produce short-duration, high-voltage pulses that cause the discharge of a spark to the surface of a printing plate; they feature short rise times, rapid operation and clean decays, thereby facilitating high-speed spark-discharge imaging.
摘要翻译： 用于非接触式火花放电成像系统的电极驱动电路。 电路快速产生短暂的高电压脉冲，使脉冲放电到印版的表面; 它们具有短的上升时间，快速的操作和清洁的衰减，从而促进高速火花放电成像。
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公开(公告)号：US5134428A
公开(公告)日：1992-07-28
申请号：US640966
申请日：1991-01-14
申请人： John F. Kline , Keith V. Robb
发明人： John F. Kline , Keith V. Robb
CPC分类号： B23H9/06 , B23H1/022 , B23H2300/20 , B41P2235/23
摘要： Electrode-driver circuits for use with non-contact spark-discharge imaging systems. The circuits rapidly produce short-duration, high-voltage pulses that cause the discharge of a spark to the surface of a printing plate; they feature short rise times, rapid operation and clean decays, thereby facilitating high-speed spark-discharge imaging.
摘要翻译： 用于非接触式火花放电成像系统的电极驱动电路。 电路快速产生短暂的高电压脉冲，使脉冲放电到印版的表面; 它们具有短的上升时间，快速的操作和清洁的衰减，从而促进高速火花放电成像。
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公开(公告)号：US06441552B1
公开(公告)日：2002-08-27
申请号：US09301998
申请日：1999-04-29
IPC分类号： H01J724
CPC分类号： H05H1/52 , H01J61/54 , H01J65/042 , H01J65/044 , H05H1/46 , H05H2001/4622
摘要： A persistent ionization plasma generator is described that forms a plasma in a cavity that persists for a time after termination of the exciting RF electric field. The plasma generator includes a RF cavity that is in fluid communication with a source of ionizing gas. The RF cavity can be at substantially atmospheric pressure. An RF power source that generates an RF electric field is electromagetically coupled to the RF cavity. An ultraviolet light source is positioned in optical communication to the cavity. An antenna is positioned within the cavity adjacent to the ultraviolet light source. A chamber for confining the plasma can be positioned in the cavity around the antenna.
摘要翻译： 描述了持久电离等离子体发生器，其在空穴中形成等离子体，其在激发RF电场终止之后持续一段时间。 等离子体发生器包括与电离气体源流体连通的RF空腔。 RF空腔可以处于基本大气压。 产生RF电场的RF电源电磁耦合到RF空腔。 紫外光源被定位成与腔体光学连通。 天线位于与紫外光源相邻的腔内。 用于限制等离子体的室可以位于天线周围的空腔中。
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公开(公告)号：US5351617A
公开(公告)日：1994-10-04
申请号：US61701
申请日：1993-05-13
CPC分类号： B41J19/20 , B41C1/1033 , B41J2/451 , B41J2/47 , B41N1/003 , B41N1/14 , B41C1/1008 , B41C2201/02 , B41C2201/04 , B41C2210/02 , B41C2210/04 , B41C2210/08 , B41C2210/24 , B41P2227/70 , Y10S430/146 , Y10S430/165
摘要： Techniques for imaging lithographic printing members responsive to the output of laser devices. Laser output passes through at least one discrete layer and ablates one or more underlying layers, resulting in an imagewise pattern of features on the printing member. The image features exhibit an affinity for ink or an ink-abhesive fluid that differs from that of unexposed areas.
摘要翻译： 用于根据激光装置的输出成像平版印刷部件的技术。 激光输出通过至少一个离散层并且消融一个或多个下层，导致印刷部件上的特征图像图案。 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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公开(公告)号：US06838831B2
公开(公告)日：2005-01-04
申请号：US10178438
申请日：2002-06-24
CPC分类号： H05H1/52 , H01J61/54 , H01J65/042 , H01J65/044 , H05H1/46 , H05H2001/4622
摘要： A persistent ionization plasma generator is described that forms a plasma in a cavity that persists for a time after termination of the exciting RF electric field. The plasma generator includes a RF cavity that is in fluid communication with a source of ionizing gas. The RF cavity can be at substantially atmospheric pressure. An RF power source that generates an RF electric field is electromagnetically coupled to the RF cavity. An ultraviolet light source is positioned in optical communication to the cavity. An antenna is positioned within the cavity adjacent to the ultraviolet light source. A chamber for confining the plasma can be positioned in the cavity around the antenna.
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7.发明授权
公开(公告)号：US5551341A
公开(公告)日：1996-09-03
申请号：US476706
申请日：1995-06-07
申请人： Thomas E. Lewis , Richard A. Williams , Frank G. Pensavecchia , John F. Kline , John P. Gardiner , Michael T. Nowak , Kenneth T. Robichaud
发明人： Thomas E. Lewis , Richard A. Williams , Frank G. Pensavecchia , John F. Kline , John P. Gardiner , Michael T. Nowak , Kenneth T. Robichaud
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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8.发明授权
公开(公告)号：US5163368A
公开(公告)日：1992-11-17
申请号：US639254
申请日：1991-01-09
申请人： Frank G. Pensavecchia , John P. Gardiner , John F. Kline , Thomas E. Lewis , Michael T. Nowak , Richard A. Williams , Stephen M. LaPonsey , Lawrence A. Howard
发明人： Frank G. Pensavecchia , John P. Gardiner , John F. Kline , Thomas E. Lewis , Michael T. Nowak , Richard A. Williams , Stephen M. LaPonsey , Lawrence A. Howard
IPC分类号： B41C1/05 , B41C1/04 , B41C1/055 , B41C1/10 , B41F7/02 , B41F31/02 , B41F33/00 , B41J2/525 , B41L19/00
CPC分类号： B41C1/04 , B41C1/1033 , B41C1/1066 , B41F7/02 , B41P2227/70 , B41P2235/23 , Y10S101/47
摘要： Printing apparatus has at least one print station including a blanket cylinder in rolling contact with an impression cylinder, a print cylinder for supporting a lithographic plate, the plate cylinder being in rolling contact with the blanket cylinder, at least one discharge source for applying an image to a plate supported by the plate cylinder, and a motor for moving the energy source relative to the plate cylinder so that when the plate cylinder is rotated, the discharge source scans a raster on the surface of the plate supported by the plate cylinder. The apparatus may be configured as an in-line or central-impression type press. A controller responsive to picture signals representing an original document repeatedly actuates each discharge source momentarily during the scan thereof so that the discharge source forms on the plate surface an image comprised of dots corresponding to the original document. The controller includes a dot-position look-up table for storing the x and y coordinates of substantially all dot positions on the plate and is arranged to actuate each energy source to form image dots at selected ones of the dot positions when said picture signals are present. The apparatus also includes provision for regulating the ink applied to the plate at each print station.
摘要翻译： 打印装置具有至少一个打印站，该打印站包括与压印滚筒滚动接触的橡皮布滚筒，用于支撑平版印版的打印滚筒，印版滚筒与橡皮滚筒滚动接触，至少一个用于施加图像的排出源 到由印版滚筒支撑的板，以及用于相对于印版滚筒移动能量源的马达，使得当印版滚筒旋转时，排出源扫描由印版滚筒支撑的印版的表面上的光栅。 该装置可以被配置为直列式或中央印模型压机。 响应于表示原稿的图像信号的控制器在其扫描期间重复地启动每个放电源，使得放电源在板表面上形成由与原始文档相对应的点组成的图像。 控制器包括一个点位置查找表，用于存储板上基本上所有点位置的x和y坐标，并且被布置成当所述图像信号是所述点位置时，使得每个能量源在选定的点位置形成图像点 当下。 该设备还包括用于调节在每个印刷站处施加到印版的油墨的装置。
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公开(公告)号：US4947749A
公开(公告)日：1990-08-14
申请号：US410720
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 is made by forming in a metal body an exposed surface which is cleaned and polished sufficiently to render it oleophilic due to surface tension. Then the surface is heated at selected image points thereon without contacting the surface and without penetrating through the body to create tiny surface fissures or capillaries at the image points which render the surface hydrophilic at the image points.
摘要翻译： 通过在金属体中形成被充分清洗和抛光的暴露表面，由于表面张力使其亲油化而制成用于具有阻尼的压力机的印刷部件。 然后，表面在其上的选定图像点处被加热而不接触表面并且不穿透身体，以在图像点处产生微小的表面裂缝或毛细管，使得表面在图像点处亲水。
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公开(公告)号：US4911075A
公开(公告)日：1990-03-27
申请号：US234475
申请日：1988-08-19
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 lithographic plate for printing without dampening comprising a strong stable substrate, an oleophobic surface layer on the substrate and an oleophilic surface underlying the surface layer, the surface layer being decomposable by spark discharges originating from a non-contacting electrode scanned across the plate surface. A preferred plate embodiment includes a multiplicity of tiny electrically conductive peaks in the plate which point away from the substrate and are in a relatively uniform distribution across the plate surface area.
摘要翻译： 一种用于无阻尼印刷的平版印刷版，包括强稳定基底，基底上的疏油表面层和位于表面层下面的亲油表面，该表面层可通过沿板表面扫描的非接触电极产生的火花放电而分解。 优选的板实施例包括板中多个微小的导电峰，其指向远离衬底，并且在板表面区域上具有相对均匀的分布。
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