Method to remove unwanted, unexposed, radiation-sensitive layer in a lithographic printing plate
    13.
    发明授权
    Method to remove unwanted, unexposed, radiation-sensitive layer in a lithographic printing plate 失效
    去除平版印刷版中不需要的,未曝光的辐射敏感层的方法

    公开(公告)号:US06843176B2

    公开(公告)日:2005-01-18

    申请号:US10661236

    申请日:2003-09-12

    IPC分类号: B41C1/10 B41N3/00 B41N3/08

    摘要: A method for forming a printing plate from a printing plate precursor having a radiation-sensitive layer, sensitive to radiation in a first frequency spectrum such as the far or near infrared, and to radiation in a second frequency spectrum other than the first frequency spectrum such as visible or ultraviolet. The plate is exposed twice. Once to imaging radiation in the first frequency spectrum and again to radiation in the second frequency spectrum. The second frequency spectrum exposure is done only to the areas of the plate undesirably shaded during the imagewise exposure.

    摘要翻译: 一种从具有对第一频谱如远红外或近红外线的辐射敏感的辐射敏感层的印版前体形成印版的方法,以及除了第一频谱以外的第二频谱中的辐射, 如可见或紫外线。 板暴露两次。 一次对第一频谱中的辐射进行成像,并再次对第二频谱中的辐射进行成像。 第二频谱曝光仅在图像曝光期间对板的区域进行不期望的遮蔽。

    Methods for imaging and processing negative-working imageable elements
    18.
    发明授权
    Methods for imaging and processing negative-working imageable elements 失效
    用于成像和处理负性可成像元件的方法

    公开(公告)号:US07763413B2

    公开(公告)日:2010-07-27

    申请号:US11872772

    申请日:2007-10-16

    IPC分类号: G03C1/805 G03F7/00 G03F7/26

    摘要: An imaged and developed element, such as a lithographic printing plate, is provided by infrared radiation imaging of a negative-working imagable element having an outermost imagable layer that includes a free radically polymerizable component, a free radical initiator composition comprising a diaryliodonium borate, and an infrared radiation absorbing compound. The imagable layer also includes a polymeric binder that is represented by the following Structure (I): -(A)w-(A′)w′-  (I) wherein A represents recurring units comprising a pendant reactive vinyl group, A′ represents recurring units other than those represented by A, w is from about 1 to about 70 mol %, and w′ is from about 30 to about 99 mol %. The imagewise exposed element is developed with a gum to remove only the non-exposed regions. The gum has a pH greater than 7 and up to about 11 and at least 1 weight % of an anionic surfactant.

    摘要翻译: 成像和显影元件,例如平版印刷版,通过具有最外层成像层的负作用可成像元件的红外辐射成像提供,该最外可成像层包括可自由基聚合的组分,包含二芳基碘鎓硼酸盐的自由基引发剂组合物和 红外辐射吸收化合物。 可成像层还包括由以下结构(I)表示的聚合物粘合剂: - (A)w-(A')w'-(I)其中A表示包含侧链的反应性乙烯基的重复单元,A'表示 除了由A代表的重复单元,w为约1至约70mol%,w'为约30至约99mol%。 成像曝光元件用树胶显影,仅去除非曝光区域。 口香糖具有大于7且高至约11和至少1重量%阴离子表面活性剂的pH。

    METHODS OF USING VIOLET-SENSITIVE IMAGEABLE ELEMENTS
    19.
    发明申请
    METHODS OF USING VIOLET-SENSITIVE IMAGEABLE ELEMENTS 审中-公开
    使用感应敏感元件的方法

    公开(公告)号:US20090142702A1

    公开(公告)日:2009-06-04

    申请号:US11949817

    申请日:2007-12-04

    IPC分类号: G03F7/028 G03C5/29

    摘要: An imaged and developed element, such as a lithographic printing plate, is provided by violet radiation imaging of a negative-working imageable element having an outermost imageable layer that includes a free radically polymerizable component, an initiator composition that provides free radicals upon violet irradiation, a sensitizer, and a polymeric binder having pendant reactive vinyl groups. The element also includes an additive that is represented by the following Structure (II): wherein R1, R2, R3, and R4 are independently hydrogen, or alkyl, alkenyl, cycloalkyl, or aryl groups. The imaged element can be developed using a gum having a pH greater than 6 and up to about 11 and comprising at least 1 weight % of one or more anionic surfactants.

    摘要翻译: 通过对具有最外可成像层的负性可成像元件的紫外线成像提供成像和显影元件,例如平版印刷版,其包括可自由基聚合的组分,在紫外线照射时提供自由基的引发剂组合物, 敏化剂和具有侧链反应性乙烯基的聚合物粘合剂。 元素还包括由以下结构(II)表示的添加剂:其中R 1,R 2,R 3和R 4独立地为氢或烷基,烯基,环烷基或芳基。 成像元件可以使用pH大于6且高达约11并且包含至少1重量%的一种或多种阴离子表面活性剂的胶体显影。

    METHODS FOR IMAGING AND PROCESSING NEGATIVE-WORKING IMAGEABLE ELEMENTS
    20.
    发明申请
    METHODS FOR IMAGING AND PROCESSING NEGATIVE-WORKING IMAGEABLE ELEMENTS 失效
    用于成像和处理负压工作图像元素的方法

    公开(公告)号:US20090098482A1

    公开(公告)日:2009-04-16

    申请号:US11872772

    申请日:2007-10-16

    IPC分类号: G03F7/004

    摘要: An imaged and developed element, such as a lithographic printing plate, is provided by infrared radiation imaging of a negative-working imageable element having an outermost imageable layer that includes a free radically polymerizable component, a free radical initiator composition comprising a diaryliodonium borate, and an infrared radiation absorbing compound. The imageable layer also includes a polymeric binder that is represented by the following Structure (I): -(A)w-(A′)w′-  (I) wherein A represents recurring units comprising a pendant reactive vinyl group, A′ represents recurring units other than those represented by A, w is from about 1 to about 70 mol %, and w′ is from about 30 to about 99 mol %. The imagewise exposed element is developed with a gum to remove only the non-exposed regions. The gum has a pH greater than 7 and up to about 11 and at least 1 weight % of an anionic surfactant.

    摘要翻译: 通过对具有最外可成像层的负性可成像元件的红外辐射成像提供成像和显影元件,例如平版印刷版,其包括可自由基聚合的组分,包含二芳基碘硼酸盐的自由基引发剂组合物和 红外辐射吸收化合物。 可成像层还包括由以下结构(I)表示的聚合物粘合剂:<?in-line-formula description =“In-line formula”end =“lead”?> - (A)w-(A' )w'-(I)<?in-line-formula description =“In-line Formulas”end =“tail”?>其中A表示包含侧链的反应性乙烯基的重复单元,A'表示除代表的那些之外的重复单元 通过A,w为约1至约70mol%,w'为约30至约99mol%。 成像曝光元件用树胶显影,仅去除非曝光区域。 口香糖具有大于7且高至约11和至少1重量%阴离子表面活性剂的pH。