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    • 5. 发明申请
    • METHOD FOR PRODUCING FLEXOGRAPHIC PRINTING PLATES USING UV-LED IRRADIATION
    • 使用UV-LED辐照生产柔性印刷板的方法
    • US20130242276A1
    • 2013-09-19
    • US13810738
    • 2011-07-12
    • Jens SchadebrodtArmin BeckerUwe StebaniMaximilian Thate
    • Jens SchadebrodtArmin BeckerUwe StebaniMaximilian Thate
    • B41C1/10
    • B41C1/1008B41M2205/14G03F1/68G03F7/027G03F7/11G03F7/2018G03F7/202G03F7/2024G03F7/325G03F7/36
    • A method for producing flexographic printing plates, using a photopolymerizable flexographic printing element having, arranged one atop another, a dimensionally stable support, a photopolymerizable, relief-forming layer, an elastomeric binder, an ethylenically unsaturated compound, and a photoinitiator, and optionally a rough, UV-transparent layer, a particulate substance, and digitally imagable layer. The method includes: (a) producing a mask by imaging the digitally imagable layer, (b) exposing the photopolymerizable, relief-forming layer through the mask with actinic light, and photopolymerizing the image regions of the layer, and (c) developing the photpolymerized layer by washing out the unphotopolymerized regions of the relief-forming layer with an organic solvent, or by thermal development. Step (b) includes (1) exposure with actinic light with an intensity of ≧100 mW/cm2 from a plurality of UV-LEDs and (2) exposure with actinic light with an intensity of
    • 一种用于制造柔版印刷版的方法,其使用具有彼此重叠的尺寸稳定的载体,可光聚合的凸版形成层,弹性体粘合剂,烯键式不饱和化合物和光引发剂的可光聚合柔性版印刷元件,以及任选地 粗糙的,UV透明的层,颗粒物质和数字成像层。 该方法包括:(a)通过对数字成像层进行成像来产生掩模,(b)通过光化曝光使可光聚合的凸版形成层通过掩模曝光,并使该层的图像区域光聚合,和(c) 通过用有机溶剂洗涤凸版形成层的未光聚合区域,或通过热显影来洗涤光聚合层。 步骤(b)包括(1)从多个UV-LED曝光强度为> 100mW / cm 2的光化光,和(2)用UV辐射强度为<100mW / cm 2的光化光曝光 光源除UV-LED外。
    • 10. 发明申请
    • Photosensitive Resin Laminate and Thermal Processing of the Same
    • 光敏树脂层压板及其热处理
    • US20140004466A1
    • 2014-01-02
    • US14016443
    • 2013-09-03
    • MacDermid Printing Solutions, LLC
    • Ryan W. VestDavid A. RecchiaTimothy Gotsick
    • G03F7/26
    • G03F7/26B41M2205/14G03F7/092G03F7/202G03F7/34
    • A method of developing a photocurable printing blank to produce a relief pattern comprising a plurality of relief dots. The photocurable printing blank comprises a backing layer having at least one photocurable layer disposed thereon, a barrier layer disposed on the at least one photocurable layer, and a laser ablatable mask layer disposed on top of the barrier layer. The method includes the steps of (1) imaging the at least one photocurable layer by ablating the laser ablatable mask layer to create the relief pattern on the photocurable printing blank the printing blank to actinic radiation through the barrier layer and mask layer to one or more sources of actinic radiation to selectively crosslink and cure portions of the at least one photocurable layer, wherein the at least one photocurable layer is crosslinked and cured in the portions not covered by the mask layer, thereby creating the relief pattern; (3) developing the printing blank to remove the barrier layer, the laser ablated mask layer and uncured portions of the photocurable layer and reveal the relief pattern. The presence of the barrier layer produces printing dots having desired characteristics. The method can also be used with an analog platemaking process that uses a negative instead of an ablatable mask layer.
    • 一种开发光固化印刷坯料以产生包括多个浮雕点的浮雕图案的方法。 光固化印刷坯料包括其上设置有至少一个可光固化层的背衬层,设置在至少一个光固化层上的阻挡层和设置在阻挡层顶部上的激光可烧蚀掩模层。 该方法包括以下步骤:(1)通过烧蚀激光可烧蚀掩模层来成像至少一个光固化层,以在光固化印刷坯料上产生浮雕图案,使得印刷坯料通过势垒层和掩模层到一个或多个 选择性地交联和固化至少一个光固化层的部分的光化辐射源,其中至少一个光固化层在未被掩模层覆盖的部分中交联并固化,从而产生浮雕图案; (3)显影印刷坯料以去除阻挡层,激光烧蚀掩模层和光固化层的未固化部分并显露浮雕图案。 阻挡层的存在产生具有期望特性的印刷点。 该方法还可以与模拟制版工艺一起使用,其使用负面而不是可烧蚀掩模层。