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    Lithographic imaging with non-ablative wet printing members
    5.
    发明授权
    Lithographic imaging with non-ablative wet printing members 失效
    非烧蚀湿印刷构件的平版印刷成像

    公开(公告)号：US06374738B1

    公开(公告)日：2002-04-23

    申请号：US09564339

    申请日：2000-05-03

    申请人： Thomas E. Lewis ,  Frederick R. Kearney ,  Eugene L. Langlais, II ,  Steven J. Frank

    发明人： Thomas E. Lewis ,  Frederick R. Kearney ,  Eugene L. Langlais, II ,  Steven J. Frank

    IPC分类号： B41C110

    CPC分类号： B41C1/1016 ,  B41C2201/04 ,  B41C2201/14 ,  B41C2210/02 ,  B41C2210/04 ,  B41C2210/08 ,  B41C2210/24

    摘要： Lithographic imaging using non-ablative printing members combines the benefits of simple construction, the ability to utilize traditional metal base supports, and amenability to imaging with low-power lasers that need not impart ablation-inducing energy levels. A representative printing member has a topmost layer that is ink-receptive and does not significantly absorb imaging radiation, a second layer thereunder that is hydrophilic and does absorb imaging radiation, and a metal substrate under the second layer. The printing member is selectively exposed to laser radiation in an imagewise pattern, and laser energy passes substantially unabsorbed through the first layer and is absorbed by the second layer. Heat builds up in the second layer sufficiently to detach the first layer, which is formulated to resist reattachment. But the first layer and, more significantly, the third layer act to dissipate heat from the second layer to prevent its ablation. Where the printing member has received laser exposure—that is, where the first and second layers have been detached—remnants of the first layer are readily removed to produce a finished printing plate.

    摘要翻译： 使用非烧蚀印刷部件的平版印刷成像结合了简单结构的优点，利用传统金属基底支架的能力，以及使用不需要赋予消融诱导能量水平的低功率激光器成像的优点。 代表性的印刷部件具有吸收墨水且不显着吸收成像辐射的最顶层，其下面是亲水的并且吸收成像辐射的第二层，以及在第二层下面的金属基底。 打印构件以成像图案选择性地暴露于激光辐射，并且激光能量基本上未被吸收穿过第一层并被第二层吸收。 热量在第二层中积聚起来，足以分离第一层，其被配制成抵抗重新附着。 但是第一层，更重要的是第三层起第二层的作用，以消散第二层的热量，以防止其消融。 在印刷部件已经接收到激光曝光的情况下，也就是说，在第一层和第二层已经被分离的地方 - 第一层的残余物容易地被去除以产生成品印刷版。

    Printing plate and methods of making and use same
    6.
    发明授权
    Printing plate and methods of making and use same 失效
    印版及制作及使用方法

    公开(公告)号：US5258263A

    公开(公告)日：1993-11-02

    申请号：US757076

    申请日：1991-09-10

    申请人： Zafarullah K. Cheema ,  Anthony C. Giudice ,  Eugene L. Langlais ,  Clarence F. St. Jacques

    发明人： Zafarullah K. Cheema ,  Anthony C. Giudice ,  Eugene L. Langlais ,  Clarence F. St. Jacques

    IPC分类号： G03F7/027 ,  G03F7/00 ,  G03F7/028 ,  G03F7/032 ,  G03F7/038 ,  G03F7/095 ,  G03F7/30

    CPC分类号： G03F7/095

    摘要： A lithographic printing plate for use on a printing press, with minimal or no additional processing after photoexposure, comprises a printing plate substrate; a photosensitive hydrophilic layer having a polymeric hydrophilic binder and a photopolymerizable, photocrosslinkable or photorearrangeable compound capable of promoting insolubilization or hardening in areas of photoexposure; and a photosensitive hydrophobic layer having a polymeric hydrophobic binder and a photopolymerizable, photocrosslinkable or photorearrangeable compound capable of promoting insolubilization or hardening in areas of photoexposure.

    摘要翻译： 在印刷机上使用的平版印刷版，在曝光后最少或没有附加处理，包括印版基板; 具有聚合物亲水性粘合剂的感光亲水层和能够促进曝光区域中不溶化或硬化的可光聚合的可光致交联或可光可连接的化合物; 以及具有聚合物疏水性粘合剂和能够促进光曝光区域中的不溶化或硬化的可光聚合的可光致交联或可光可连接或可光可分布的化合物的感光性疏水层。

    Image-forming composite with film
    7.
    发明授权
    Image-forming composite with film 失效
    成像复合材料与薄膜

    公开(公告)号：US4564589A

    公开(公告)日：1986-01-14

    申请号：US577536

    申请日：1984-02-06

    申请人： Robert W. Hallman ,  Eugene L. Langlais ,  Patrick G. Warner

    发明人： Robert W. Hallman ,  Eugene L. Langlais ,  Patrick G. Warner

    IPC分类号： G03F1/56 ,  G03C1/82

    CPC分类号： G03F1/56 ,  Y10S430/146

    摘要： An image-forming composite image member and subtractive photo process employing that composite, in which composite, a spectrally reflective light-blocking layer, a secondary thin optically functional layer and a subtractive photosensitive layer are carried on a base in an association, in which the reflective layer and the secondary layer cooperate after imagewise exposure and development to define an image member in which the secondary layer and reflector layer may provide a guide to orientation of the composite and may provide a unique polarity-reversing ability to display both a negative and a positive image. In a preferred form, the reflective and secondary layers provide superior uniform light-blocking with a minimum combined thickness, and also cooperate in the photo process during the development to insure rapid and complete clearing of areas with at most minimal mechanical action under portions of the photosensitive layer which are soluble after imagewise exposure and have been removed in development.

    摘要翻译： 使用该复合物的图像形成复合图像构件和减去光学处理，其中复合材料，光谱反射阻挡层，次级光学功能层和减去感光层在基底上携带，其中 反射层和次层在成像曝光和显影之后配合以限定图像构件，其中次级层和反射层可以为复合材料的取向提供引导，并且可以提供独特的极性反转能力以显示阴性和 积极的形象。 在优选形式中，反射层和次级层提供了具有最小组合厚度的优异的均匀光阻，并且还在显影过程中在照相过程中配合以确保快速和完全地清除具有最小机械作用的区域 感光层，其在成像曝光后可溶，并在显影中被除去。

    Printing members having permeability-transition layers and related methods
    8.
    发明授权
    Printing members having permeability-transition layers and related methods 有权
    具有渗透性过渡层的印刷部件和相关方法

    公开(公告)号：US08173346B2

    公开(公告)日：2012-05-08

    申请号：US12466760

    申请日：2009-05-15

    申请人： Gerald P. Harwood, Jr. ,  Eugene L. Langlais

    发明人： Gerald P. Harwood, Jr. ,  Eugene L. Langlais

    IPC分类号： G03F7/037 ,  G03F7/26

    CPC分类号： B41C1/1041

    摘要： Affinity transitions from hydrophobic to hydrophilic states, rather than ablation mechanisms, facilitate the creation of an imagewise lithographic pattern on a printing plate. In various embodiments, a lithographic printing member comprises a topmost “imaging” layer that undergoes, in response to heat, a transition from a hydrophobic and oleophilic state to a hydrophilic state (which may or may not also be oleophilic); and a substrate disposed below the imaging layer. The affinity change in the imaging layer may be due essentially to a foaming agent therein. The foaming agent decomposes upon heating, creating a gas that foams the surface of the imaging layer. The resulting spongelike texture enables the surface to retain water, i.e., renders it hydrophilic.

    摘要翻译： 从疏水到亲水状态的亲和性转变，而不是消融机制，有助于在印版上产生成像平版印刷图案。 在各种实施方案中，平版印刷构件包括响应于热而从疏水和亲油状态转变为亲水状态（其可能也可能不是亲油性）的最高“成像”层; 以及设置在成像层下方的基板。 成像层中的亲和力变化可能主要是由于其中的发泡剂。 发泡剂在加热时分解，形成发泡成像层表面的气体。 所得到的海绵状结构使得表面能够保持水分，即使其具有亲水性。