Method for making positive working printing plates from a heat mode
sensitive image element
    21.
    发明授权
    Method for making positive working printing plates from a heat mode sensitive image element 有权
    从加热模式敏感图像元件制作正性印刷版的方法

    公开(公告)号:US6083663A

    公开(公告)日:2000-07-04

    申请号:US161469

    申请日:1998-09-28

    IPC分类号: B41C1/10 B41M5/36 G03F7/004

    摘要: According to the present invention there is provided a method for making lithographic printing plates including the following steps:a) preparing a heat mode imaging element having on a lithographic base with a hydrophilic surface a first layer including a polymer, soluble in an aqueous alkaline solution, a compound capable of converting light to heat and a top layer on the same side of the lithographic base as the first layer which top layer is unpenetrable for an alkaline developer containing SiO.sub.2 as silicate;b) exposing imagewise the heat mode imaging element to actinic light;c) developing the imagewise exposed heat mode imaging element with the alkaline developer so that the exposed areas of the top layer and the underlying areas of the first layer are dissolved and the unexposed areas of the first layer remain undissolved characterized in that said top layer includes an organic quaternary ammonium salt.

    摘要翻译: 根据本发明,提供一种制备平版印刷版的方法,包括以下步骤:a)制备具有亲水表面的平版印刷基底上的热模式成像元件,该第一层包括可溶于碱性水溶液的聚合物 能够将光转换成热的化合物和在与第一层相同的一侧上的顶层,该顶层对于含有SiO 2作为硅酸盐的碱性显影剂是不可穿透的; b)将热模式成像元件成像曝光成光化光; c)用碱性显影剂显影图像曝光的热模式成像元件,使得顶层的暴露区域和第一层的下面的区域被溶解,并且第一层的未曝光区域保持不溶解,其特征在于所述顶层包括 有机季铵盐。

    On the press development of a diazo based printing plate
    23.
    发明授权
    On the press development of a diazo based printing plate 失效
    关于重氮基印刷版的新闻发展

    公开(公告)号:US5776653A

    公开(公告)日:1998-07-07

    申请号:US760341

    申请日:1996-12-04

    CPC分类号: G03F7/305

    摘要: According to the present invention there is provided a method for making a lithographic printing plate comprising the steps of: (1) image-wise exposing an imaging element having of a flexible film support in the order given (i) a uniform ink-repellant layer comprising a cross-linked hydrophilic binder and (ii) a photosensitive layer comprising a diazonium salt or a diazo resin; (2) and developing a thus obtained image-wise exposed imaging element by mounting it on a print cylinder of a printing press and wiping it with a disposable absorbing tissue moistened with water or fountain solution.

    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:(1)以具有柔性膜支持体的成像元件成像曝光,其顺序为(i)均匀的疏墨层 包括交联的亲水性粘合剂和(ii)包含重氮盐或重氮树脂的感光层; (2),并将如此获得的图像曝光成像元件通过将其安装在印刷机的印刷滚筒上并用浸有水或润版液的一次性吸收性组织擦拭而形成。

    Method of processing a lithographic printing plate precursor
    26.
    发明授权
    Method of processing a lithographic printing plate precursor 失效
    平版印刷版前体的处理方法

    公开(公告)号:US06645699B2

    公开(公告)日:2003-11-11

    申请号:US10174767

    申请日:2002-06-19

    IPC分类号: G03F730

    摘要: A method of making a lithographic image is disclosed, which comprises the steps of providing a lithographic imaging material comprising a support and a heat- or light-sensitive coating; image-wise exposure of the coating to heat or light, thereby obtaining a latent image in said coating, the latent image consisting of a set of exposed areas in the coating and a set of non-exposed areas in the coating; development of the latent image by supplying a processing liquid to the coating and evacuating, by means of a suction device, the processing liquid together with (i) substances removed from the exposed areas without removing such substances from the non-exposed areas or together with (ii) substances removed from the non-exposed areas without removing such substances from the exposed areas. The method is especially suitable for processing a lithographic printing plate while it is mounted in a plate-setter or a printing press, without the risk of damaging or contaminating electro-optical components of such equipment.

    摘要翻译: 公开了一种制备平版印刷图像的方法,其包括以下步骤:提供包括支持体和热敏感或感光涂层的平版印刷成像材料;将涂层成像曝光于热或光,由此获得潜像 所述涂层,所述潜像由所述涂层中的一组暴露区域和所述涂层中的一组未曝光区域组成;通过向所述涂层提供处理液体并通过抽吸装置排出来显影所述潜像; 处理液与(i)从暴露区域中除去的物质,而不从非暴露区域中除去这些物质,或者与(ii)从未暴露的区域去除的物质,而不从暴露的区域中除去这些物质。 特别适用于将平版印刷版安装在印版机或印刷机中,而不会损坏或污染电光部件 这样的设备。

    Heat mode sensitive imaging element for making positive working printing plates
    28.
    发明授权
    Heat mode sensitive imaging element for making positive working printing plates 有权
    加热模式敏感成像元件,用于制作正性印刷版

    公开(公告)号:US06447977B2

    公开(公告)日:2002-09-10

    申请号:US09260062

    申请日:1999-03-02

    IPC分类号: G03F7039

    摘要: According to the present invention there is provided a heat mode imaging element for making a lithographic printing plate having on a lithographic base with a hydrophilic surface a first layer including a polymer soluble in an aqueous alkaline solution, and a top layer on the same side of the lithographic base as the first layer that is IR-sensitive and unpenetrable for an aqueous alkaline developer wherein said first layer and said top layer may be one and the same layer; characterized in that the surface of said element upon exposure and treatment with an aqueous alkaline developer is such that a) the contact angle between the unexposed areas of the imaging element and the aqueous alkaline developer changes for at most 6° during the first minute of contact with said developer; b) the contact angle between the exposed areas of the imaging element and the aqueous alkaline developer changes more than 15° during the first minute of contact with said developer; c) the difference in contact angle between on the one side the unexposed areas and on the other side the exposed areas of the imaging element with the aqueous alkaline solution at the onset of the measurement is not higher than 10°.

    摘要翻译: 根据本发明,提供了一种用于制造平版印刷版的热模式成像元件,该平版印刷版在具有亲水表面的光刻基底上具有包含可溶于碱性水溶液的聚合物的第一层, 作为第一层的平版印刷基底,其对于碱性水溶液的IR敏感性和不透气性,其中所述第一层和所述顶层可以是同一层; 其特征在于,当用碱性显影剂水溶液曝光和处理时,所述元件的表面是这样的:a)成像元件的未曝光区域与含水碱性显影剂之间的接触角在接触第一分钟期间变化最多6° 所述显影剂; b)在与所述显影剂接触的第一分钟期间,成像元件的暴露区域和碱性水性显影剂之间的接触角变化大于15°; c)一侧上未曝光的接触角之间的差异 在测量开始时,成像元件与碱性水溶液的曝光区域不高于10°。

    On the press development of a diazo based printing plate
    29.
    发明授权
    On the press development of a diazo based printing plate 失效
    关于重氮基印刷版的新闻发展

    公开(公告)号:US5776654A

    公开(公告)日:1998-07-07

    申请号:US721849

    申请日:1996-09-30

    CPC分类号: G03F7/26 G03F7/016

    摘要: According to the present invention there is provided a method for making a lithographic printing plate comprising the steps of: (1) image-wise exposing an imaging element having on a plastic film support in the order given (i) a uniform ink-repellant layer comprising a cross-linked hydrophilic binder and (ii) a photosensitive layer comprising a diazonium salt or a diazo resin; (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. The present invention also provides a method for making multiple copies of an original comprising the steps of: (1) image-wise exposing an imaging element having on a plastic film support in the order given (i) a uniform ink-repellant layer comprising a cross-linked hydrophilic binder and (ii) a photosensitive layer comprising a diazonium salt or a diazo resin; (2) mounting a thus obtained image-wise exposed imaging element without development, on a print cylinder of a printing press; (3) rotating said print cylinder while supplying an aqueous dampening liquid and/or supplying ink to said photosensitive layer of said imaging element and (4) transfering ink from said imaging element to a receiving element.

    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:(1)按照以下顺序成像曝光具有塑料膜载体的成像元件:(i)均匀的疏墨层 包括交联的亲水性粘合剂和(ii)包含重氮盐或重氮树脂的感光层; (2),并将如此获得的图像曝光的成像元件通过将其安装在印刷机的印刷滚筒上并将水性润版液体和/或墨水供应到所述感光层来显影。 本发明还提供了一种用于制作原件的多个副本的方法,包括以下步骤:(1)按照给定的顺序成像曝光具有塑料膜支撑件的成像元件,(i)均匀的墨水排斥层,包括 交联的亲水性粘合剂和(ii)包含重氮盐或重氮树脂的感光层; (2)将未经显影的如此获得的图像曝光成像元件安装在印刷机的印刷滚筒上; (3)在供应水性阻尼液体和/或向所述成像元件的所述感光层供应墨水的同时旋转所述印刷滚筒,以及(4)将油墨从所述成像元件传送到接收元件。

    Diazo based imaging element having improved resistance against physical
damage
    30.
    发明授权
    Diazo based imaging element having improved resistance against physical damage 失效
    重氮基成像元件具有改善的抵抗物理损伤的抵抗力

    公开(公告)号:US5663031A

    公开(公告)日:1997-09-02

    申请号:US593354

    申请日:1996-01-29

    CPC分类号: G03F7/11

    摘要: The present invention provides an imaging element comprising on a support in the order given a coated composition of at least two hydrophilic layers being in water permeable contact with each other and each containing a hydrophilic (co)polymer or (co)polymer mixture and having been hardened with a hydrolyzed tetraalkyl orthosilicate and a light sensitive layer containing a diazo resin or a diazonium salt characterized in that the ratio by weight in the top layer of said package of said hydrophilic (co)polymer or (co)polymer mixture versus said hydrolyzed tetraalkyl orthosilicate (expressed as silicon dioxide) is at least 1.1 and the ratio by weight in an underlying layer of said package of said hydrophilic (co)polymer or (co)polymer mixture versus said hydrolyzed tetraalkyl orthosilicate (expressed as silicon dioxide) is not higher than 0.9.

    摘要翻译: 本发明提供了一种成像元件,其按照给定涂层组合物的顺序包含至少两个彼此具有水可渗透接触的亲水层,并且各自含有亲水(共)聚合物或(共)聚合物混合物,并且已经被 用水解的原硅酸四烷基酯和含有重氮树脂或重氮盐的光敏层硬化,其特征在于所述亲水(共)聚合物或(共)聚合物混合物包装的顶层中的重量比与所述水解的四烷基 所述原硅酸盐(表示为二氧化硅)至少为1.1,并且所述亲水(共)聚合物或(共)聚合物混合物的所述包装层的底层与所述水解的原硅酸四烷基酯(表示为二氧化硅)的重量比不高 比0.9。