利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

156 条记录 (耗时 0.026 秒)

    Positive-working lithographic printing plate precursor
    1.
    发明授权
    Positive-working lithographic printing plate precursor 有权
    正版平版印刷版前体

    公开(公告)号：US07294447B2

    公开(公告)日：2007-11-13

    申请号：US10243750

    申请日：2002-09-13

    申请人： Marc Van Damme ,  Joan Vermeersch ,  Geert Deroover

    发明人： Marc Van Damme ,  Joan Vermeersch ,  Geert Deroover

    IPC分类号： G03F7/004

    CPC分类号： B41N1/14 ,  B41C1/1008 ,  B41C2210/02 ,  B41C2210/06 ,  B41C2210/22 ,  B41C2210/24 ,  B41N1/08

    摘要： A lithographic printing plate precursor is disclosed which comprises (i) a support having a hydrophilic surface or which is provided with a hydrophilic layer and (ii) a coating provided thereon, the coating comprising an oleophilic layer which, upon image-wise exposure to heat or infrared light and subsequent immersion in an aqueous alkaline developer, dissolves in the developer at a higher dissolution rate in exposed areas than in unexposed areas, wherein the oleophilic layer comprises a polymer that is soluble in the developer and an organic dye in a amount sufficient to provide a visible color to the coating, characterized in that said organic dye does not reduce the dissolution rate of the unexposed areas in the developer.By using non-inhibiting dyes, the sensitivity of the precursor upon image-wise exposure is increased.

    摘要翻译： 公开了一种平版印刷版原版，其包括（i）具有亲水性表面的或具有亲水层的载体，和（ii）在其上提供的涂层，所述涂层包含亲油层，其在成像时暴露于热 或红外光并随后浸入含水碱性显影剂中，在暴露的区域中以比未曝光的区域更高的溶解速率溶解在显影剂中，其中亲油层包含可溶于显影剂的聚合物和足够量的有机染料 以向涂层提供可见的颜色，其特征在于所述有机染料不会降低显影剂中未曝光区域的溶解速率。 通过使用非抑制染料，前体在成像曝光时的灵敏度增加。

    Method for making positive working printing plates from a heat mode sensitive image element
    2.
    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：US6004728A

    公开(公告)日：1999-12-21

    申请号：US163367

    申请日：1998-09-30

    申请人： Geert Deroover ,  Joan Vermeersch ,  Marc Van Damme

    发明人： Geert Deroover ,  Joan Vermeersch ,  Marc Van Damme

    IPC分类号： B41C1/10 ,  B41M5/40 ,  B41M5/46 ,  G03F7/11

    CPC分类号： B41C1/1016 ,  B41C2210/02 ,  B41C2210/06 ,  B41C2210/14 ,  B41C2210/22 ,  B41C2210/24 ,  B41C2210/262 ,  B41M5/465

    摘要： According to the present invention there is provided a method for making lithographic printing plates including the following stepsa) 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 and a top layer on the same side of the lithographic base as the first layer which top layer is sensitive to IR-radiation and is unpenetrable for an alkaline developer containing SiO.sub.2 as silicate;b) exposing imagewise said heat mode imaging element to IR-radiation;c) developing said imagewise exposed heat mode imaging element with said 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 IR-dye.

    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：a）制备在光刻基底上具有亲水表面的热模式成像元件，该第一层包含可溶于碱性水溶液的聚合物， 与作为第一层的平版印刷基材的同一侧上的顶层对IR辐射敏感，对于含有SiO 2作为硅酸盐的碱性显影剂是不可穿透的; b）将成像的所述热模式成像元件暴露于IR辐射; c）用所述碱性显影剂显影所述成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区域溶解，并且第一层的未曝光区域保持未溶解，其特征在于，所述顶层包括 IR染料。

    Method for making positive working printing plates from a heat mode sensitive image element
    3.
    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：US06235451B1

    公开(公告)日：2001-05-22

    申请号：US09161286

    申请日：1998-09-28

    申请人： Marc Van Damme ,  Joan Vermeersch ,  Geert Deroover

    发明人： Marc Van Damme ,  Joan Vermeersch ,  Geert Deroover

    IPC分类号： G03F7004

    CPC分类号： B41C1/1016 ,  B41C2210/02 ,  B41C2210/06 ,  B41C2210/14 ,  B41C2210/22 ,  B41C2210/24 ,  B41C2210/262 ,  Y10S430/145

    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 and a top layer on the same side of the lithographic base as the first layer which top layer is sensitive to IR-radiation and is unpenetrable for an alkaline developer containing SiO2 as silicates; b) exposing imagewise said heat mode imaging element to IR-radiation; c) developing said imagewise exposed heat mode imaging element with said 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 IR-dye in an amount between 1 and 100% by weight of the total amount of said IR-sensitive top layer selected from the group consisting of indoaniline dyes, cyanine dyes, merocyanine dyes, oxonol dyes, porphine derivatives, anthraquinone dyes, merostyryl dyes, pyrylium compounds, diphenyl and triphenyl azo compounds and squarylium derivatives.

    摘要翻译： 根据本发明，提供一种制备平版印刷版的方法，其包括以下步骤：a）制备在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，和 顶层与第一层的第一层顶层对IR辐射敏感，并且对于含有SiO 2作为硅酸盐的碱性显影剂是不可穿透的; b）将成像的所述热模式成像元件暴露于IR辐射; c ）用所述碱性显影剂显影所述成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 IR染料的量为选自组合的所述IR敏感顶层的总量的1至100重量％ 印度苯胺染料，花青染料，部花青染料，氧杂菁染料，卟吩衍生物，蒽醌染料，merostyryl染料，吡喃鎓化合物，二苯基和三苯基偶氮化合物和方晶衍生物。

    Method for making positive working printing plates from a heat mode sensitive image element
    4.
    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：US06060218A

    公开(公告)日：2000-05-09

    申请号：US163372

    申请日：1998-09-30

    申请人： Marc Van Damme ,  Joan Vermeersch ,  Geert Deroover

    发明人： Marc Van Damme ,  Joan Vermeersch ,  Geert Deroover

    IPC分类号： B41C1/10 ,  B41M5/36 ,  G03F7/30

    CPC分类号： B41C1/1008 ,  B41C2210/02 ,  B41C2210/06 ,  B41C2210/22 ,  B41C2210/262 ,  Y10S430/145 ,  Y10S430/165

    摘要： According to the present invention there is provided a method for making lithographic printing plates including the following stepsa) preparing a heat mode imaging element consisting of a lithographic base with a hydrophilic surface and a top layer which top layer is sensitive to IR-radiation, comprises a polymer, soluble in an aqueous alkaline solution and is unpenetrable for an alkaline developer containing SiO.sub.2 as silicates;b) exposing imagewise said heat mode imaging element to IR-radiation;c) developing said imagewise exposed heat mode imaging element with said alkaline developer so that the exposed areas of the top layer are dissolved and the unexposed areas of the top layer remain undissolved characterized in that said top layer includes an IR-dye selected from the group consisting of indoaniline dyes, cyanine dyes, merocyanine dyes, oxonol dyes, porphine derivatives, anthraquinone dyes, merostyryl dyes, pyrylium compounds, diphenyl and triphenyl azo compounds and squarylium derivatives.

    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：a）制备由具有亲水表面的光刻基底和顶层对IR辐射敏感的顶层组成的热模式成像元件， 包含可溶于碱性水溶液的聚合物，并且对于含有SiO2的碱性显影剂不可穿透，作为硅酸盐; b）将成像的所述热模式成像元件暴露于IR辐射; c）用所述碱性显影剂显影所述成像曝光的热模式成像元件，使得顶层的暴露区域溶解，并且顶层的未曝光区域保持未溶解，其特征在于，所述顶层包括选自以下的IR-染料 由吲哚苯胺染料，花青染料，部花菁染料，氧杂菁染料，卟吩衍生物，蒽醌染料，merostyryl染料，吡喃鎓化合物，二苯基和三苯基偶氮化合物和方晶衍生物组成。

    Heat-sensitive lithographic printing plate precursor
    5.
    发明授权
    Heat-sensitive lithographic printing plate precursor 失效
    热敏平版印刷版前体

    公开(公告)号：US07087359B2

    公开(公告)日：2006-08-08

    申请号：US10765797

    申请日：2004-01-27

    申请人： Geert Deroover ,  Marc Van Damme

    发明人： Geert Deroover ,  Marc Van Damme

    IPC分类号： G03F7/11 ,  B41N1/14 ,  B41N1/08

    CPC分类号： B41C1/1016 ,  B41C2210/02 ,  B41C2210/06 ,  B41C2210/14 ,  B41C2210/22 ,  B41C2210/24 ,  B41C2210/262 ,  Y10S430/146

    摘要： A positive working printing plate precursor is disclosed which comprises a hydrophilic support and a coating provided thereon which comprises in the order given a first layer containing an oleophilic resin soluble in an aqueous alkaline developer and a second layer comprising a water repellent-compound. Furthermore, the coating comprises an infrared absorbing dye containing a perfluoroalkyl group providing a printing plate precursor with high sensitivity.

    摘要翻译： 公开了一种正性工作印刷版前体，其包括亲水性支持物和在其上提供的涂层，其顺序包含含有可溶于碱性水溶液的亲油性树脂的第一层和包含防水化合物的第二层。 此外，涂层包含含有全氟烷基的红外吸收染料，提供具有高灵敏度的印版前体。

    Method for accurate exposure of small dots on a heat-sensitive positive-working lithographic printing plate material
    7.
    发明授权
    Method for accurate exposure of small dots on a heat-sensitive positive-working lithographic printing plate material 有权
    在热敏正性平版印刷版材料上精确曝光小点的方法

    公开(公告)号：US07467587B2

    公开(公告)日：2008-12-23

    申请号：US11114210

    申请日：2005-04-21

    申请人： Joan Vermeersch ,  Wim Sap ,  Marc Van Damme

    发明人： Joan Vermeersch ,  Wim Sap ,  Marc Van Damme

    IPC分类号： B41C1/10 ,  B41M1/06 ,  G03F7/00

    CPC分类号： B41C1/1008 ,  B41C2210/02 ,  B41C2210/06 ,  B41C2210/22 ,  B41C2210/24 ,  B41C2210/262

    摘要： A method is disclosed for accurate reproduction of high-quality halftone images comprising microdots by means of lithographic plate materials which comprise a heat-sensitive positive-working coating that requires wet processing. Such microdots have a dot size ≦25 μm and may be obtained by stochastic screening or by amplitude-modulated screening at a ruling of not less than 150 lpi. It has been established that the “physical right exposure energy density” (physical REED) lies in the range from CP to 1.5*CP, wherein the physical REED is defined as the energy density at which the physical area on the plate, occupied by a microdot corresponding to a 50% halftone in the image data, coincides with the 50% target value; and wherein CP is the clearing point of the plate which is defined as the minimum energy density that is required to obtain, after processing, a dissolution of 95% of the coating. An accurate reproduction of microdots can therefore be achieved by exposing the material with light having an energy density in the range from CP to 1.5*CP. Loss of microdots by overexposure is thereby avoided.

    摘要翻译： 公开了一种用于通过平版印刷材料精确再现包含微点的高质量半色调图像的方法，该平版印刷材料包括需要湿法处理的热敏正性涂层。 这样的微点具有<25μm的点大小，并且可以通过随机筛选或通过幅度调制筛选获得，尺寸不小于150lpi。 已经确定的是，“身体右曝光能量密度”（物理REED）在CP到1.5 * CP的范围内，其中物理REED被定义为板上的物理区域的能量密度，由 在图像数据中对应于50％半色调的微点符合50％的目标值; 并且其中CP是板的清除点，其被定义为在加工后95％的涂层的溶解所需的最小能量密度。 因此，通过用能量密度在CP至1.5×CP范围内的光使材料曝光，可以实现微点的精确再现。 从而避免由于过度曝光导致的微点损失。

    Method for making positive working printing plates from a heat mode sensitive imaging element
    8.
    发明授权
    Method for making positive working printing plates from a heat mode sensitive imaging element 有权
    从热模式敏感成像元件制造正性印刷版的方法

    公开(公告)号：US06248503B1

    公开(公告)日：2001-06-19

    申请号：US09186613

    申请日：1998-11-06

    申请人： Joan Vermeersch ,  Marc Van Damme ,  Andreas Elsässer ,  Inge Claes

    发明人： Joan Vermeersch ,  Marc Van Damme ,  Andreas Elsässer ,  Inge Claes

    IPC分类号： G03F7004

    CPC分类号： B41C1/10 ,  B41C1/1008 ,  B41C1/1016 ,  B41C2210/02 ,  B41C2210/06 ,  B41C2210/14 ,  B41C2210/22 ,  B41C2210/24 ,  B41C2210/262

    摘要： According to the present invention there is provided a method for making a lithographic printing plate comprising the steps of a) exposing imagewise to IR-radiation 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 and a top layer on the same side of the lithographic base as the first layer which top layer is unpenetrable by an alkaline developer and contains a compound capable of converting light into heat, wherein said first layer and said top layer may be one and the same layer; and b) developing said imagewise exposed heat mode imaging element with said alkaline developer whereby the exposed areas of the first and the top layer, which may be the same, are dissolved and the unexposed areas of the first layer remain undissolved characterized in that said alkaline developer has a pH of at least 12 and a surface tension of at least 30 mN/m.

    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：a）将具有亲水表面的光学成像元件的热模式成像元件成像曝光于包含聚合物的第一层，所述第一层可溶于 碱性水溶液和位于与第一层相同的一侧的顶层，该顶层不能被碱性显影剂穿透，并且含有能够将光转化成热的化合物，其中所述第一层和所述顶层可以是 同一层; 和b）用所述碱性显影剂显影所述成像曝光的热模式成像元件，由此第一层和顶层的可能相同的暴露区域被溶解，并且第一层的未曝光区域保持未溶解，其特征在于所述碱性显影剂 具有至少12的pH和至少30mN / m的表面张力。