Method for making a lithographic printing plate wherein an imaging
element is used that comprises a thermosensitive mask
    41.
    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
    42.
    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
    43.
    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。

    Method For Making Negative-Working Heat-Sensitive Lithographic Printing Plate Precursor
    44.
    发明申请
    Method For Making Negative-Working Heat-Sensitive Lithographic Printing Plate Precursor 审中-公开
    制造负性热敏平版印刷版前体的方法

    公开(公告)号:US20080311524A1

    公开(公告)日:2008-12-18

    申请号:US11571784

    申请日:2005-07-01

    IPC分类号: G03F7/20 B41N1/00

    摘要: A method for making a negative-working heat-sensitive lithographic printing plate precursor includes the steps pf: (i) providing a support having a hydrophilic surface or which is provided with a hydrophilic layer; and (ii) applying on the support a coating which includes a product DQ, wherein DQ is obtained by: the step of coating a solution or dispersion including a nucleophilic compound Q and a dye D selected from the list consisting of di- or tri-arylmethane dyes, cyanine dyes, styryl dyes, and merostyryl dyes; or by D and Q interact to form interaction product DQ, having a white light optical density which is lower that the white light optical density of dye D; and the interaction product DQ is capable of at least partially releasing a dye directly after exposure to infrared light or heat, therby forming a visible image in the coating.

    摘要翻译: 制造负性热敏平版印刷版原版的方法包括步骤pf:(i)提供具有亲水性表面的或具有亲水层的载体; 并且(ii)在载体上涂覆包含产品DQ的涂层,其中DQ通过以下步骤获得:涂覆包含亲核化合物Q和染料D的溶液或分散体的步骤,所述亲核化合物Q和染料D选自二 - 或三 - 芳基甲烷染料,花青染料,苯乙烯基染料和美洛斯坦林染料; 或通过D和Q相互作用形成具有低于染料D的白光光密度的白光光密度的相互作用产物DQ; 并且相互作用产物DQ能够在暴露于红外光或热之后直接至少部分地释放染料,从而在涂层中形成可见图像。

    Positive-working lithographic printing plate precursor
    45.
    发明申请
    Positive-working lithographic printing plate precursor 审中-公开
    正版平版印刷版前体

    公开(公告)号:US20050260934A1

    公开(公告)日:2005-11-24

    申请号:US10612211

    申请日:2003-07-02

    IPC分类号: B24B5/04 B41N3/03

    CPC分类号: B41N3/034

    摘要: A positive-working lithographic printing plate precursor is disclosed which comprises (i) a grained and anodized aluminum support having a hydrophilic surface and (ii) a heat-sensitive oleophilic coating provided on the hydrophilic surface, wherein said coating is capable of dissolving in an aqueous alkaline developer at a higher dissolution rate in areas of said coating which are exposed to heat or infrared light than in unexposed areas, characterized in that the hydrophilic surface has a surface roughness, expressed as arithmetical mean center-line roughness Ra, which is less than 0.40 μm. The use of a low surface roughness as defined above provides an improved shelf life of the coating.

    摘要翻译: 公开了一种正性平版印刷版原版,其包括(i)具有亲水表面的颗粒和阳极氧化铝载体和(ii)在亲水表面上提供的热敏亲油涂层,其中所述涂层能够溶解在 水性碱性显影剂在所述涂层的暴露于热或红外光的区域中的溶解速率高于未曝光区域,其特征在于,所述亲水表面具有表示为粗糙度的表面粗糙度,表示为算术平均中心线粗糙度Ra,其较小 超过0.40毫米。 使用如上定义的低表面粗糙度提供了涂层的改进的保质期。

    Heat mode sensitive imaging element for making positive working printing plates
    47.
    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:US06489079B1

    公开(公告)日:2002-12-03

    申请号:US09391421

    申请日:1999-09-08

    IPC分类号: G03F7004

    摘要: According to the present invention there is provided a heat mode imaging element for making a lithographic printing plate comprising 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 which top layer is IR-sensitive and unpenetrable for an alkaline developer wherein said first layer and said top layer may be one and the same layer; characterized in that said top layer contains at least one blockcopolymer in an amount between 0.5 and 500 mg/m2.

    摘要翻译: 根据本发明,提供一种用于制造平版印刷版的热模式成像元件,该平版印刷版包括在具有亲水表面的平版印刷基底上,第一层包括可溶于碱性水溶液的聚合物和位于同一侧上的顶层 作为第一层的光刻基底,其顶层对于碱性显影剂是IR敏感的和不可穿透的,其中所述第一层和所述顶层可以是同一层; 其特征在于所述顶层含有至少一种0.5-500mg / m 2的嵌段共聚物。

    Heat mode sensitive imaging element for making positive working printing plates
    48.
    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:US06472119B1

    公开(公告)日:2002-10-29

    申请号:US09476089

    申请日:2000-01-03

    IPC分类号: G03F7039

    摘要: According to the present invention there is provided a heat ode imaging element for making a lithographic printing plate having n 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 which top layer is IR-sensitive and unpenetrable or insoluble for an alkaline developer wherein said first layer and said top layer may be one and the same layer and said first layer and said top layer being the imaging layers; characterized in that said imaging layers have a glass transition temperature of at least 57° C.

    摘要翻译: 根据本发明,提供了一种用于制造平版印刷版的平版印刷版,其具有亲水表面的具有可溶于碱性水溶液的聚合物的第一层和具有亲水表面的第一层, 作为第一层的光刻基底,其顶层对于碱性显影剂是IR敏感的且不可穿透的或不溶的,其中所述第一层和所述顶层可以是同一层,所述第一层和所述顶层是成像层; 其特征在于,所述成像层的玻璃化转变温度至少为57℃

    Method for making positive working printing plates
    49.
    发明授权
    Method for making positive working printing plates 失效
    制作正版印刷版的方法

    公开(公告)号:US06458510B1

    公开(公告)日:2002-10-01

    申请号:US09476109

    申请日:2000-01-03

    IPC分类号: G03F7004

    摘要: According to the present invention there is provided a method for the preparation of a lithographic printing plate comprising the steps of exposing with IR light an imaging element comprising 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 which top layer is IR-sensitive and unpenetratable for or insoluble in an alkaline developer wherein said first layer and said top layer may be one and the same layer, said imaging element comprising a siloxane surfactant; developing said exposed imaging element with an alkaline solution; rinsing said developed imaging element with water or an aqueous solution; gumming said developed imaging element with a baking gum solution; subjecting said gummed imaging element to a thermal treatment at a temperature above 50° C.; characterized in that said rinsing is carried out with a brushing and/or with water containing a surfactant.

    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:用IR光照射成像元件,该成像元件在光刻基底上具有亲水表面,第一层包括可溶于碱性水溶液的聚合物 以及与所述第一层在所述平版印刷基底的相同侧上的顶层,所述第一层的顶层对于碱性显影剂是IR敏感的且不可渗透的或不溶于碱性显影剂,其中所述第一层和所述顶层可以是同一层,所述成像 元素,其包含硅氧烷表面活性剂;用碱性溶液显影所述暴露的成像元件;用水或水溶液漂洗所述显影的成像元件;用烘焙胶溶液涂覆所述显影的成像元件;使所述胶粘的成像元件在 温度高于50℃;其特征在于,所述冲洗是用刷洗和/或用水进行的 涂上表面活性剂。

    Method for making positive working printing plates
    50.
    发明授权
    Method for making positive working printing plates 失效
    制作正版印刷版的方法

    公开(公告)号:US06455229B1

    公开(公告)日:2002-09-24

    申请号:US09476108

    申请日:2000-01-03

    IPC分类号: G03F7004

    摘要: According to the present invention there is provided a method for the preparation of a lithographic printing plate comprising the steps of exposing with IR light an imaging element comprising 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 which top layer is IR-sensitive and unpenetratable for or insoluble in an alkaline developer wherein said first layer and said top layer may be one and the same layer, said imaging element comprising a siloxane surfactant; developing said exposed imaging element with an alkaline solution; gumming said developed imaging element with a baking gum solution; subjecting said gummed imaging element to a thermal treatment at a temperature above 50° C.; characterized in that said baking gum solution contains at least one surfactant making the contact angle between the baking gum solution and the surface of the plate less than 68° and/or at least one viscosity-regulating polymer making the viscosity of the baking gum solution between 1.7 cP and 5.0 cP.

    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:用IR光照射成像元件,该成像元件在光刻基底上具有亲水表面,第一层包括可溶于碱性水溶液的聚合物 以及与所述第一层在所述平版印刷基底的相同侧上的顶层,所述第一层的顶层对于碱性显影剂是IR敏感的且不可渗透的或不溶于碱性显影剂,其中所述第一层和所述顶层可以是同一层,所述成像 元素,其包含硅氧烷表面活性剂;用碱性溶液显影所述暴露的成像元件;用烘焙胶溶液涂覆所述显影的成像元件;使所述胶状成像元件在高于50℃的温度下进行热处理;其特征在于,所述烘烤 胶溶液含有至少一种表面活性剂,其使得烘焙胶溶液与表面之间的接触角 小于68°的板和/或至少一种粘度调节聚合物,其使烘焙胶溶液的粘度在1.7cP和5.0cP之间。