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124 条记录 (耗时 0.013 秒)

    Method and apparatus for offset printing employing fluoroelastomers
    81.
    发明授权
    Method and apparatus for offset printing employing fluoroelastomers 失效
    使用含氟弹性体的胶印方法和装置

    公开(公告)号：US4178850A

    公开(公告)日：1979-12-18

    申请号：US785956

    申请日：1977-04-08

    申请人： Richard W. Helmig

    发明人： Richard W. Helmig

    IPC分类号： B41N10/02 ,  B41M1/00

    CPC分类号： B41N10/02 ,  B41N2210/02 ,  B41N2210/14

    摘要： An offset printing system and method wherein a plate cylinder, a blanket cylinder and ink applying means are arranged in cooperative relationship. The ink applying means applies ink to a plate removably carried by the plate cylinder and the ink applied to the plate is transferred as an image to an image receiving surface of a blanket secured to the blanket cylinder and having an image receiving surface comprising a solid fluoroelastomer. In the disclosed embodiment, the fluoroelastomer is a copolymer of vinylidene fluoride and hexafluoropropylene of a grade which remains solid and deforms elastically at temperatures in excess of 150.degree. F. The fluoroelastomer has a specific gravity between about 1.82 and 1.86 and the ink applying means may also be provided with a surface comprising a fluoroelastomer which remains solid and deforms elastically at temperatures in excess of 150.degree. F.

    摘要翻译： 一种胶版印刷系统和方法，其中印版滚筒，橡皮布滚筒和油墨施加装置以协作关系布置。 油墨施加装置将油墨施加到由印版滚筒可移除地承载的板上，并且施加到印版的油墨作为图像被转印到固定到橡皮布滚筒上的橡皮布的图像接收表面，并且具有包含固体含氟弹性体的图像接收表面 。 在所公开的实施方案中，含氟弹性体是一种等级的偏二氟乙烯和六氟丙烯的共聚物，该共聚物保持固体并在超过150°F的温度下弹性变形。氟弹性体的比重在约1.82至1.86之间，并且油墨施加装置 还设置有包含含氟弹性体的表面，其保持固体并且在超过150°F的温度下弹性变形。

    Method of covering volume-compressible articles
    82.
    发明授权
    Method of covering volume-compressible articles 失效
    涵盖体积可压缩文章的方法

    公开(公告)号：US3622412A

    公开(公告)日：1971-11-23

    申请号：US3622412D

    申请日：1969-11-04

    申请人： GRACE W R & CO

    发明人： ROSS WILLIAM C ,  EDMANDS NATHANIEL M JR ,  HEINEMANN FREDERICK E

    IPC分类号： B41N10/02 ,  B32B31/26

    CPC分类号： B41N10/02 ,  B41N2210/02 ,  B41N2210/14

    摘要： Volume-compressible products such as printing, coating, and impression rolls are made by enclosing a porous volumecompressible layer formed on a rigid core with an impermeable layer of heat-flowable resilient polymeric material. The assembly is wrapped with a nonshrinking tape, or may be placed in a mold. Vents plugged with a substance having a predetermined melting point are inserted in the porous layer, and lead to the atmosphere. Pressure to cause the polymeric coating layer to flow and consolidate is developed by heating the assembly. Cure, if necessary, is effected by elevating the temperature. At the higher temperature, the plugs melt and open the vent passages, thus avoiding collapse and wrinkling when the product cools.