Shock absorber cushion and method of use
    31.
    发明申请
    Shock absorber cushion and method of use 有权
    减震垫及使用方法

    公开(公告)号:US20010042471A1

    公开(公告)日:2001-11-22

    申请号:US09883878

    申请日:2001-06-18

    CPC classification number: B41F13/085 B41F27/14 B41M1/04 B41M9/04 B41N6/00

    Abstract: A sheet of elastomeric material that serves as a shock absorber and cushion for use between a printing plate, such as but not limited to a flexographic printing plate, and a printing cylinder during printing for compensating for variations in thickness, height and centricity of the printing cylinder and printing plate to prevent distortions in the image being printed that includes providing an elastomeric material having a longitudinal direction in the direction of circumferential travel of the cylinder circumference that includes a plurality or array of protrusions formed of the elastomeric material of predetermined cross-sectional shape and area and the material having a durometer to cushion the printing plate in such a way to provide the necessary compensation to ensure a high quality printed image at high speed. The cross-sectional shapes and the array of the longitudinal protrusions provide for the material's lateral displacement zones that allows the elastomeric material to be displaced and return relatively instantaneously to its original height or near original height to obtain and maintain high quality printing, thereby compensating for tolerance errors between the drum size and the flexographic plate thickness.

    Abstract translation: 用作缓冲垫和缓冲垫的弹性体材料片,用于印刷之间的印刷板,例如但不限于柔性版印刷版和印刷滚筒,用于补偿印刷品的厚度,高度和中心度的变化 气缸和印版,以防止正在印刷的图像中的变形,其包括提供弹性体材料,所述弹性体材料具有在圆周周向的圆周行进方向上的纵向方向,该弹性体材料包括由预定横截面的弹性体材料形成的多个或阵列的突起 形状和面积,并且具有硬度的材料以便以这种方式缓冲印刷板以提供必要的补偿以高速确保高质量的印刷图像。 纵向突起的横截面形状和阵列提供材料的横向位移区域,其允许弹性体材料移位并相对瞬时地返回到其原始高度或接近原始高度以获得并保持高质量的印刷,由此补偿 鼓尺寸和柔版印版厚度之间的公差误差。

    Printing carrier sleeves and method for manufacturing the same
    32.
    发明授权
    Printing carrier sleeves and method for manufacturing the same 失效
    印刷载体套管及其制造方法

    公开(公告)号:US5974972A

    公开(公告)日:1999-11-02

    申请号:US55493

    申请日:1998-04-06

    Abstract: A printing carrier sleeve for mounting printing plates thereon, is formed by cutting a sheet of flexible plastic material having opposite edges into a substantially rectangular shape of desired dimensions such that opposite edges are cut-away to provide complementary tabs and openings that interlock with each other, adhering printing plates on the sheet when the sheet is in a substantially flat condition, securing opposite edges of the sheet together in abutting relation so as to prevent air from passing between the opposite edges, and thereby forming the printing carrier sleeve in a cylindrical configuration, by placing a strip of tape on a forming cylinder, securing one edge of the rectangular sheet on the strip of tape on the cylinder, and wrapping the opposite edge of the sheet about the cylinder into abutting relation with the one edge to provide the interlocking arrangement.

    Abstract translation: 通过将具有相对边缘的柔性塑料材料片切割成所需尺寸的基本上矩形的形状来形成用于在其上安装印刷板的印刷载体套筒,使得相对的边缘被切除以提供彼此互锁的互补的突片和开口 当片材处于基本上平坦的状态时将片材粘附在片材上,将片材的相对边缘抵接在一起,以防止空气在相对边缘之间通过,从而将印刷载体套筒形成为圆柱形构型 通过将一条条带放置在成形圆筒上,将矩形片的一个边缘固定在圆柱体上的条带上,并将片材的相对边缘围绕圆筒包围成与该边缘邻接的关系,以提供互锁 安排。

    Ferromagnetic adhesive foil for printing applications
    33.
    发明授权
    Ferromagnetic adhesive foil for printing applications 失效
    用于印刷应用的铁磁胶箔

    公开(公告)号:US5832831A

    公开(公告)日:1998-11-10

    申请号:US704936

    申请日:1996-08-30

    CPC classification number: B82Y15/00 B41F27/02 B41N6/00

    Abstract: A ferromagnetic foil carrying a layer of a pressure sensitive adhesive for adhesive attachment to a printing plate to be used in a letterpress or flexographic printing operation. The ferromagnetic foil preferably is formed of a cold rolled steel having a thickness in the range of from about 0.001 inch to about 0.007 inch. The metal foil allows the printing plate to be adhered to the outer surface of a magnetized printing cylinder due to the magnetic attraction between the printing cylinder and the ferromagnetic foil. If the printing cylinder is not magnetized, but is formed of a ferromagnetic material, a flexible magnetic pad is applied to the outer surface of the cylinder, and the ferromagnetic foil-backed printing plate is then placed on the flexible magnetic pad. If the printing cylinder is formed of a non-ferromagnetic material, a flexible magnetic pad is first adhered to the outer surface of the cylinder, such as by an adhesive, and the foil-backed printing plate is then adhered to the flexible magnetic pad.

    Abstract translation: 带有粘合剂粘合剂层的铁磁箔,用于印刷版,用于凸版印刷或柔版印刷操作。 铁磁箔优选由厚度在约0.001英寸至约0.007英寸范围内的冷轧钢板形成。 由于印刷滚筒和铁磁箔之间的磁吸引力,金属箔允许印版粘附到磁化印刷滚筒的外表面。 如果印刷滚筒未被磁化,而是由铁磁材料形成,则将柔性磁性垫施加到圆筒的外表面,然后将铁磁箔背衬印刷板放置在柔性磁性垫上。 如果印刷滚筒由非铁磁材料形成,则首先将柔性磁性垫片例如通过粘合剂附着到滚筒的外表面,然后将箔背印刷板粘附到柔性磁性垫片上。

    Lithographic printing members with deformable cushioning layers
    34.
    发明授权
    Lithographic printing members with deformable cushioning layers 失效
    具有可变形缓冲层的平版印刷部件

    公开(公告)号:US5704291A

    公开(公告)日:1998-01-06

    申请号:US594335

    申请日:1996-01-30

    Inventor: Thomas E. Lewis

    Abstract: Printing members resistant to handling damage include a porous compressible layer that deforms in response to applied forces, inhibiting overlying layers from tearing or scratching. One type of construction involves ablation-type printing members, wherein pulses from a heat source ablate one or more layers to expose (or facilitate exposure of by cleaning) an underlying layer. A second type of construction utilizes traditional photoexposure-type layers that harden or increase adhesion to adjacent layers in response to actinic radiation. The compressible layer is typically located below the radiation-responsive or imaging layer, but may also serve as that layer.

    Abstract translation: 耐受处理损伤的印刷构件包括响应于施加的力而变形的多孔可压缩层,抑制上层撕裂或划伤。 一种类型的结构涉及消融型印刷构件,其中来自热源的脉冲消融一层或多层以暴露(或通过清洁曝光)底层。 第二种类型的结构利用传统的曝光型层,其响应于光化辐射而硬化或增加对相邻层的粘附。 可压缩层通常位于辐射响应或成像层下方,但也可以用作该层。

    Printing blanket with convex compressible layer
    36.
    发明授权
    Printing blanket with convex compressible layer 失效
    印刷毯与凸形可压缩层

    公开(公告)号:US5522315A

    公开(公告)日:1996-06-04

    申请号:US203549

    申请日:1994-03-01

    Abstract: A printing article which includes a rotatable metal support in the form of a cylinder and a compressible laminate mounted upon the support. The compressible laminate has upper and lower surfaces and a substantially uniform thickness and includes a printing face which forms the upper surface and a compressible layer positioned beneath the printing face. The upper surface of the compressible layer is spaced closer to the upper surface of the printing face in the center of the cylindrical support than at the ends. Preferably, this laminate is cylindrical and is in the form of a printing blanket or printing roll. The invention also relates to a method for forming the compressible laminate.

    Abstract translation: 一种印刷制品,其包括圆筒形式的可旋转金属支撑件和安装在所述支撑件上的可压缩层压板。 可压缩层压板具有上表面和下表面以及基本均匀的厚度,并且包括形成上表面的印刷面和位于印刷面下方的可压缩层。 可压缩层的上表面在圆柱形支撑件的中心处比在端部处更接近印刷面的上表面。 优选地,该层压体是圆柱形的并且是印刷橡皮布或印刷辊的形式。 本发明还涉及一种用于形成可压缩叠层的方法。

    Press plate with a uniform flat easily-repairable press surface and
process for making same
    37.
    发明授权
    Press plate with a uniform flat easily-repairable press surface and process for making same 失效
    具有均匀平面的压板易于修复的压力表面及其制造方法

    公开(公告)号:US5234743A

    公开(公告)日:1993-08-10

    申请号:US732505

    申请日:1991-07-18

    Inventor: Rudolf Fleischle

    Abstract: The process for making a press plate having a flat press surface includes applying a liquid synthetic epoxy resin plastic material to a support surface of the press plate; allowing the liquid synthetic epoxy resin plastic material to run freely under action of gravity until it is uniformly distributed on the support surface and a layer with a flat and horizontal surface is formed on the liquid synthetic epoxy resin plastic material; providing projecting support walls along edges of the support plate for retaining and preventing loss of the liquid synthetic epoxy resin plastic material; and allowing the liquid synthetic epoxy resin plastic material to harden without vibration for up to seven days. The liquid synthetic epoxy resin plastic material is hardenable so that the press surface formed on the layer has sufficient hardness and the liquid synthetic epoxy resin plastic material is sufficiently elastic to compensate for expansion of the support plate, while retaining a flat smooth press surface. The press plate consists of the support plate and the single hardened layer, which is resistant to temperatures up to 150.degree. C., resistant to attack by solvents and is mechanically workable.

    Abstract translation: 用于制造具有平压机表面的压板的方法包括将液态合成环氧树脂塑料材料施加到压板的支撑表面; 允许液体合成环氧树脂塑料材料在重力作用下自由运行,直到其均匀分布在支撑表面上,并且在液体合成环氧树脂塑料材料上形成具有平坦和水平表面的层; 沿着支撑板的边缘提供突出的支撑壁,用于保持和防止液体合成环氧树脂塑料材料的损失; 并允许液态合成环氧树脂塑料材料在无振动下硬化长达七天。 液体合成环氧树脂塑料材料是可硬化的,使得形成在该层上的压制表面具有足够的硬度,并且液体合成环氧树脂塑料材料具有足够的弹性,以补偿支撑板的膨胀,同时保持平坦的平滑的压制表面。 压板由支撑板和单个硬化层组成,耐温度高达150℃,耐受溶剂侵蚀,并且是机械可操作的。

    Pin register system for flexographic printing plates
    38.
    发明授权
    Pin register system for flexographic printing plates 失效
    柔版印刷版针脚注册系统

    公开(公告)号:US4727806A

    公开(公告)日:1988-03-01

    申请号:US14109

    申请日:1987-02-03

    CPC classification number: B41F27/005 B41F27/1275 B41N6/00

    Abstract: A method for accurately positioning photopolymer color plates onto print cylinders of a rotary press is disclosed. The photopolymer plates are prepared with the aid of specially prepared color separated films and are mounted onto assigned print cylinders with the aid of index pins. Alignment accuracy is provided in part by producing each color separated film from the same camera film negative on which an image field and reference marks have been photographically transferred from mechanical artwork. Continuity of alignment accuracy is provided by center scribe reference marks utilized together with index holes which are precision located and punched, respectively, onto and through carrier sheets, masks, duplicating film and color separated negatives. Various combinations of pre-punched carrier sheets, masks, contact duplicating film, color separated negatives, and unexposed printing plates are mechanically coupled in precise alignment by pin register tabs throughout the various stages of the plate production process. In particular, superimposed sheets are coupled together and center scribe marks are maintained in alignment by pin register tabs which are received in registration in the precision punched index holes.

    Abstract translation: 公开了一种将光敏聚合物色板准确地定位在旋转印刷机的印刷滚筒上的方法。 借助于专门制备的彩色分离膜制备感光聚合物印版,借助于索引针将其安装在指定的印刷滚筒上。 部分地通过从与机械图案相摄影的图像场和参考标记上相同的相机胶片底片产生每个分色膜来提供对准精度。 对准精度的连续性通过与分度孔一起使用的中心划线参考标记提供,分度孔分别精确定位并穿过载体片,掩模,复印膜和分色底片。 预打孔载体片,掩模,接触复制膜,分色阴影和未曝光印刷版的各种组合在印版制作过程的整个不同阶段通过针脚对准片进行机械耦合。 特别地,叠加的片材被联接在一起,并且中心划线标记通过定位在精密打孔索引孔中的销对准片保持对准。

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