Method for making a printing plate and printing plate
    371.
    发明申请
    Method for making a printing plate and printing plate 失效
    印版和印版的制作方法

    公开(公告)号:US20020108519A1

    公开(公告)日:2002-08-15

    申请号:US09783776

    申请日:2001-02-15

    Abstract: A method of producing a printing plate comprises: (a) providing a printing plate precursor comprising a topmost etchable first layer and a second layer located below the first layer, wherein the first and second layers have different affinities for at least one printing liquid; (b) imagewise providing atomized fluid particles in an interaction zone located above the surface of the first layer; and (c) imagewise directing laser energy into the interaction zone, wherein the laser energy has a wavelength which is substantially absorbed by the atomized fluid particles in the interaction zone, and the absorption of the laser energy causes the atomized fluid particles to imagewise impart kinetic energy to and etch the first layer. Lithographic and flexographic printing plates may be prepared according to this method, including waterless plates, negative-and positive-working plates, and processless plates.

    Abstract translation: 制造印版的方法包括:(a)提供包含最顶层可蚀刻第一层和位于第一层下方的第二层的印版前体,其中第一和第二层对至少一种印刷液具有不同的亲和力; (b)在位于第一层表面上方的相互作用区域中成像提供雾化流体颗粒; 并且(c)将激光能量成像地引导到相互作用区域中,其中激光能量具有被相互作用区域中的雾化流体颗粒基本吸收的波长,并且激光能量的吸收导致雾化的流体颗粒成像赋予动力学 能量和蚀刻第一层。 可以根据这种方法制备平版印刷版和柔版印刷版,包括无水版,负片和正片,以及无处理版。

    Lithographic printing plate precursor
    372.
    发明申请
    Lithographic printing plate precursor 有权
    平版印刷版前体

    公开(公告)号:US20020007751A1

    公开(公告)日:2002-01-24

    申请号:US09833638

    申请日:2001-04-13

    Abstract: A lithographic printing plate precursor comprising a hydrophilic support having thereon a heat-sensitive layer containing at least one of a thermoplastic particulate polymer having Tg of not lower than 60null C., a particulate polymer having a heat-reactive group and a microcapsule containing a compound having a heat-reactive group incorporated therein.

    Abstract translation: 一种平版印刷版原版,其包含亲水性载体,其上具有含有Tg不低于60℃的热塑性颗粒聚合物中的至少一种的热敏层,具有热反应性基团的颗粒状聚合物和含有 化合物中含有热反应性基团。

    Infrared-sensitive image forming material
    373.
    发明申请
    Infrared-sensitive image forming material 失效
    红外敏感成像材料

    公开(公告)号:US20010026900A1

    公开(公告)日:2001-10-04

    申请号:US09765292

    申请日:2001-01-22

    Abstract: An infrared-sensitive image forming material with which a plate can be directly formed by an infrared laser. The infrared-sensitive image forming material has a support having disposed thereon a recording layer whose solubility in an aqueous alkaline solution is altered by irradiation with an infrared laser. The recording layer has a binder phase formed of a polymer compound, a dispersion phase that is dispersed in the binder phase, and an infrared absorbent present in either one of the binder phase and the dispersion phase. Within a total incorporated amount of the infrared absorbent in the recording layer, a mass present in the dispersion binder is greater than a mass present in the binder phase. Namely, within the recording layer, the infrared absorbent is localized in the dispersion phase.

    Abstract translation: 通过红外线激光可以直接形成板的红外线敏感成像材料。 红外线敏感成像材料具有在其上设置有通过用红外激光照射改变其在碱性水溶液中的溶解度的记录层的载体。 记录层具有由聚合物化合物形成的粘结相,分散在粘结相中的分散相和存在于粘结相和分散相中的任一个中的红外线吸收剂。 在记录层中总共掺入量的红外线吸收剂中,分散粘合剂中存在的质量大于粘结相中存在的质量。 也就是说,在记录层内,红外线吸收剂位于分散相中。

    Lithographic printing plates for use with laser imaging apparatus
    375.
    发明授权
    Lithographic printing plates for use with laser imaging apparatus 有权
    用于激光成像设备的平版印刷版

    公开(公告)号:US06182570B2

    公开(公告)日:2001-02-06

    申请号:US09399905

    申请日:1999-09-21

    Abstract: Provided is a lithographic printing plate comprising a support substrate having disposed thereon an ablative-absorbing layer and, optionally, a durable, ink-accepting surface layer that is not ablative-absorbing. The ablative-absorbing layer may contain a high weight percent of an organic sulfonic acid component. The printing plate may further comprise a hydrophilic polymeric layer interposed between the ablative-absorbing layer and the substrate. The printing plate also comprises a primer layer underlying the ablative-absorbing layer with an adhesion-promoting agent, such as a zirconium compound, present in the primer layer. Also provided are methods of preparing such lithographic printing plates, and methods of preparing imaged lithographic printing plates from such lithographic printing plates by imagewise exposure to a laser and a subsequent cleaning step with water or with a cleaning solution.

    Abstract translation: 提供了一种平版印刷版,其包括在其上设置有消融吸收层的支撑基板和任选地不具有消融吸收性的耐用的受墨表面层。 烧蚀吸收层可含有高重量百分比的有机磺酸组分。 印版还可以包括插入在消融吸收层和基底之间的亲水聚合物层。 印刷版还包含存在于底漆层中的消光吸收层下面的底漆层和具有粘合促进剂如锆化合物的底漆层。 还提供了制备这种平版印刷版的方法,以及通过成像曝光于激光从这种平版印刷版制备成像的平版印刷版的方法,以及随后用水或清洗溶液的清洗步骤。

    Method for making a lithographic printing plate involving on press
development
    376.
    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

    Abstract: 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.

    Abstract translation: 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。

    Lithographic printing plates having a thin releasable interlayer
overlying a rough substrate
    377.
    发明授权
    Lithographic printing plates having a thin releasable interlayer overlying a rough substrate 失效
    平版印刷版具有覆盖在粗糙基底上的薄的可剥离中间层

    公开(公告)号:US6014929A

    公开(公告)日:2000-01-18

    申请号:US36881

    申请日:1998-03-09

    Abstract: This invention discloses lithographic printing plates having a thin releasable interlayer interposed between a rough and/or porous substrate and a radiation-sensitive layer. The radiation-sensitive layer is bonded to the rough and/or porous substrate through mechanical interlocking. Insertion of a thin releasable interlayer in such a configuration minimizes cross-contamination between the substrate and the radiation-sensitive layer, protects the substrate from attack by environmental species and reduces ink scumming tendency of the plates while still allowing good bonding between the substrate and the radiation-sensitive layer.

    Abstract translation: 本发明公开了具有介于粗糙和/或多孔基底和辐射敏感层之间的薄的可释放夹层的平版印刷版。 辐射敏感层通过机械互锁结合到粗糙和/或多孔基底上。 以这种构造插入薄的可剥离中间层使得基底和辐射敏感层之间的交叉污染最小化,保护基底免受环境物质的侵蚀并且降低了印版的油墨浮渣倾向,同时仍然允许基材和 辐射敏感层。

    Method for making a lithographic printing plate wherein an imaging
element is used that comprises a thermosensitive mask
    378.
    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

    Abstract: 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.

    Abstract translation: 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。

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