Processless printing plate with cover layer containing compounds with cationic groups
    61.
    发明授权
    Processless printing plate with cover layer containing compounds with cationic groups 失效
    无机印刷版,带有含阳离子基团化合物的覆盖层

    公开(公告)号:US06399276B1

    公开(公告)日:2002-06-04

    申请号:US09599966

    申请日:2000-06-23

    IPC分类号: G03F711

    摘要: According to the present invention there is provided a heat-sensitive material for making lithographic plates comprising in the order given on a support an IR-sensitive oleophilic layer and a cross-linked hydrophilic layer, wherein said heat-sensitive material is covered with a layer comprising at least an organic compound comprising cationic groups.

    摘要翻译: 根据本发明,提供了一种用于制造平版印刷板的热敏材料,其包含按照载体上的顺序给予IR感光亲油层和交联亲水层,其中所述热敏材料被层 包含至少一种包含阳离子基团的有机化合物。

    Method for making a lithographic printing plate involving on press
development
    63.
    发明授权
    Method for making a lithographic printing plate involving on press development 失效
    涉及压制成型的平版印刷版的制造方法

    公开(公告)号:US6110644A

    公开(公告)日:2000-08-29

    申请号:US715640

    申请日:1996-09-18

    摘要: The present invention provides a method for making a lithographic printing plate comprising the steps of:(1) mounting an imaging element comprising (i) on a hydrophilic surface of a lithographic base an image forming layer comprising hydrophobic thermoplastic polymer particles capable of coalescing under the influence of heat and dispersed in a hydrophilic binder and (ii) a compound capable of converting light to heat, said compound being comprised in said image forming layer or a layer adjacent thereto on a print cylinder of a printing press;(2) image-wise exposing said imaging element by means of a laser or LED;(3) and developing a thus obtained image-wise exposed imaging element by supplying an aqueous dampening liquid and/or ink to said image forming layer while rotating said print cylinder.

    摘要翻译: 本发明提供一种制备平版印刷版的方法,包括以下步骤:(1)安装成像元件,其包含(i)在光刻基底的亲水表面上,该成像层包含能够在 热和分散在亲水性粘合剂中的影响和(ii)能够将光转化成热的化合物,所述化合物包含在所述图像形成层中或与印刷机的印刷滚筒上相邻的层中; (2)通过激光或LED以成像方式曝光所述成像元件; (3),并且通过在旋转所述印刷滚筒的同时向所述图像形成层提供水性润版液体和/或墨水来显影如此获得的图像曝光的成像元件。

    Heat-sensitive imaging element for making positive working printing
plates
    65.
    发明授权
    Heat-sensitive imaging element for making positive working printing plates 失效
    用于制作正性印刷版的热敏成像元件

    公开(公告)号:US6040113A

    公开(公告)日:2000-03-21

    申请号:US25341

    申请日:1998-02-18

    摘要: Heat-sensitive imaging element for making positive working printing plates according to the present invention there is provided a heat-sensitive imaging element for making positive working lithographic printing plates comprising on a lithographic base a layer comprising a polymer, soluble in an aqueous alkaline solution and an IR-radiation sensitive top layer. Upon image-wise exposure the capacity of the aqueous alkaline solution to penetrate and/or solubilize the top layer is changed. Image-wise exposure can be performed with an infrared laser with a short as well as with a long pixel well time.The obtained positive working printing plates have excellent printing properties and an improved infrared sensitivity.

    摘要翻译: 根据本发明的用于制造正性印刷版的热敏成像元件提供了一种用于制造正性工作平版印刷版的热敏成像元件,其在光刻基底上包含可溶于碱性水溶液的聚合物的层, IR辐射敏感顶层。 在成像曝光时,改变碱性水溶液渗透和/或溶解顶层的能力。 可以使用短的红外激光以及长像素的时间来进行图像曝光。 获得的正性印刷版具有优异的印刷性能和改进的红外灵敏度。

    Method for making a lithographic printing plate involving on press
development
    66.
    发明授权
    Method for making a lithographic printing plate involving on press development 失效
    涉及压制成型的平版印刷版的制造方法

    公开(公告)号:US6030750A

    公开(公告)日:2000-02-29

    申请号:US715496

    申请日:1996-09-18

    IPC分类号: B41C1/10 B41M5/36 G03F7/00

    摘要: The present invention provides a method for making a lithographic printing plate comprising the steps of:(1) image-wise exposing to light an imaging element comprising (i) on a hydrophilic surface of a lithographic base an image forming layer comprising hydrophobic thermoplastic polymer particles capable of coalescing under the influence of heat and dispersed in a hydrophilic binder and (ii) a compound capable of converting light to heat, said compound being comprised in said image forming layer or a layer adjacent thereto;(2) and developing a thus obtained image-wise exposed imaging element by mounting it on a print cylinder of a printing press and supplying an aqueous dampening liquid and/or ink to said image forming layer while rotating said print cylinder.

    摘要翻译: 本发明提供一种制备平版印刷版的方法,该方法包括以下步骤:(1)将成像元件成像曝光成光学元件,该成像元件包括:(i)在光刻基底的亲水表面上形成包含疏水性热塑性聚合物颗粒 能够在热影响下聚结并分散在亲水性粘合剂中,和(ii)能够将光转化成热的化合物,所述化合物包含在所述图像形成层中或与其相邻的层中; (2),并且通过将如此获得的图像曝光的成像元件安装在印刷机的印刷滚筒上并在旋转所述印刷滚筒的同时将水性阻尼液和/或墨水供应到所述图像形成层来显影。

    Method for the preparation of an improved heat mode image
    67.
    发明授权
    Method for the preparation of an improved heat mode image 失效
    用于制备改进的热模式图像的方法

    公开(公告)号:US5952136A

    公开(公告)日:1999-09-14

    申请号:US979492

    申请日:1997-11-28

    摘要: A method is disclosed, and a corresponding thermal imaging medium for use with it, for the formation of an improved heat mode image comprising (A) exposing information-wise to laser radiation a thermal imaging medium comprising (1) a transparent support, (2) an image recording layer containing a hydrophilic binder, a substance capable of converting laser radiation into heat, and a dispersion of a hydrophobic polymer capable of undergoing thermocoagulation by the action of heat and having a built-in UV-absorber. A heat mode image with high density and improved resistance to physical damage is obtained.

    摘要翻译: 公开了一种方法,以及与其一起使用的相应的热成像介质,用于形成改进的热模式图像,其包括(A)将信息曝光于激光辐射的热成像介质,所述热成像介质包括(1)透明支撑体(2 )含有亲水性粘合剂,能够将激光辐射转化为热的物质的图像记录层,以及能够通过热作用进行热凝和具有内置的紫外线吸收剂的疏水性聚合物的分散体。 获得具有高密度和改善的物理损伤抵抗力的热模式图像。

    Method for making a lithographic printing plate wherein an imaging
element is used that comprises a thermosensitive mask
    68.
    发明授权
    Method for making a lithographic printing plate wherein an imaging element is used that comprises a thermosensitive mask 失效
    制造平版印刷版的方法,其中使用包含热敏掩模的成像元件

    公开(公告)号:US5879861A

    公开(公告)日:1999-03-09

    申请号:US843588

    申请日:1997-04-16

    摘要: According to the present invention there is provided a method for making a lithographic printing plate comprising the steps of:providing an imaging element comprising on a support having a hydrophilic surface a photosensitive layer and a thermosensitive layer, said thermosensitive layer being opaque to light for which said photosensitive layer has spectral sensitivity and said thermosensitive layer comprising an infrared pigment dispersed in a binder;mounting said imaging element on a drum;image-wise exposing said imaging element by means of an infrared laser in an internal or external drum configuration thereby ablating said thermosensitive layer and rendering it image-wise transparent;overall exposing said imaging element with light to which said photosensitive layer has spectral sensitivity;developing said imaging element to leave an ink accepting image of said photosensitive layer on said support.

    摘要翻译: 根据本发明,提供了一种制备平版印刷版的方法,包括以下步骤:提供成像元件,该成像元件包括在具有亲水表面的感光层和热敏层的支撑体上,所述热敏层对于不透明的光 所述感光层具有光谱灵敏度,并且所述热敏层包含分散在粘合剂中的红外颜料; 将所述成像元件安装在滚筒上; 通过内部或外部鼓构造中的红外激光成像地曝光所述成像元件,从而消除所述热敏层并使其成像透明; 用所述感光层具有光谱灵敏度的光全面曝光所述成像元件; 显影所述成像元件以将所述感光层的油墨接受图像留在所述支撑体上。

    Method for producing lithographic plates with imaging elements
comprising a photosensitive acid precursor
    69.
    发明授权
    Method for producing lithographic plates with imaging elements comprising a photosensitive acid precursor 失效
    用于制造具有包含光敏酸前体的成像元件的平版印刷版的方法

    公开(公告)号:US5851724A

    公开(公告)日:1998-12-22

    申请号:US521045

    申请日:1995-08-29

    CPC分类号: G03F7/346

    摘要: The present invention provides a method for obtaining a lithographic printing plate comprising the steps of: (a) image-wise or information-wise exposing a photosensitive imaging element comprising on a hydrophilic surface of a support a hydrophobic photosensitive layer contiguous to said hydrophilic surface, comprising (i) a photosensitive acid precursor and (ii) a hydrophobic polymeric binder and (b) developing said exposed imaging element by the steps of: (i) laminating before or after said exposure an uppermost layer of said imaging element to a receptor layer and (ii) peeling away the receptor layer from the hydrophilic surface of the support thus transferring said hydrophobic photosensitive composition patternwise to the receptor layer, characterized in that said hydrophobic photosensitive layer comprises as photosensitive acid precursor a non-ionic photosensitive precursor of a sulphonic acid or a non-ionic photosensitive precursor of an optionally partially esterified phosphonic acid or a non-ionic photosensitive precursor of an optionally partially esterified phosphoric acid, the latter phosphonic or phosphoric acid precursors in the absence of an acid-sensitive composition of (a) low molecular weight compound(s).

    摘要翻译: 本发明提供一种获得平版印刷版的方法,包括以下步骤:(a)将包含在支持物的亲水表面上的感光成像元件成像或信息地曝光与所述亲水表面邻接的疏水感光层, 包括(i)感光酸前体和(ii)疏水聚合物粘合剂和(b)通过以下步骤显影所述暴露的成像元件:(i)在所述曝光之前或之后将所述成像元件的最上层层合到受体层 并且(ii)将接收层从支撑物的亲水表面剥离,从而将所述疏水光敏组合物图案转移到受体层,其特征在于,所述疏水光敏层包含作为感光酸前体的磺酸的非离子感光性前体 或任选部分酯化的膦酸的非离子光敏前体 酸或非任选部分酯化的磷酸的非离子感光性前体,后者的膦酸或磷酸前体在不存在(a)低分子量化合物的酸敏感组合物的情况下进行。

    On-press development of a lithographic printing plate having an
aryldiazosulfonate resin in a photosensitive layer
    70.
    发明授权
    On-press development of a lithographic printing plate having an aryldiazosulfonate resin in a photosensitive layer 失效
    在感光层中具有芳基重氮磺酸盐树脂的平版印刷版的印刷机显影

    公开(公告)号:US5786128A

    公开(公告)日:1998-07-28

    申请号:US715500

    申请日:1996-09-18

    CPC分类号: G03F7/016

    摘要: The present invention discloses a method for making a lithographic printing plate comprising the steps of: (1) image-wise exposing an imaging element having on a hydrophilic surface of a lithographic base a photosensitive layer comprising a photosensitive polymer containing aryl-diazosulfonate units; (2) and developing a thus obtained image-wise exposed imaging element by mounting it on a print cylinder of a printing press and supplying an aqueous dampening liquid and/or ink to said photosensitive layer while rotating said print cylinder. Excellent printing results are obtained with a printing plate perpared according to the above described method. The lithographic base may be an anodized aluminium or a support provided with an ink-repellant layer containing a cross-linked hydrophilic binder.

    摘要翻译: 本发明公开了一种制备平版印刷版的方法,包括以下步骤:(1)将含有芳基 - 重氮磺酸酯单元的感光性聚合物的感光层成像曝光成具有在光刻基底的亲水表面上的成像元件; (2),并通过将如此获得的图像曝光的成像元件安装在印刷机的印刷滚筒上并将旋转所述印刷滚筒的水性润版液和/或墨水供应到所述感光层来显影。 使用根据上述方法制作的印版可获得优异的印刷结果。 平版印刷基底可以是阳极氧化的铝或设置有含有交联的亲水性粘合剂的防墨水层的载体。