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    Heat-sensitive lithographic printing plate precursor
    71.
    发明申请
    Heat-sensitive lithographic printing plate precursor 失效
    热敏平版印刷版前体

    公开(公告)号：US20050136356A1

    公开(公告)日：2005-06-23

    申请号：US10834555

    申请日：2004-04-29

    Applicant: Marc Van Damme ,  Huub Van Aert

    Inventor： Marc Van Damme ,  Huub Van Aert

    IPC: B41C1/10 ,  G03C1/494

    CPC classification number: B41C1/1008 ,  B41C1/1016 ,  B41C2201/02 ,  B41C2201/14 ,  B41C2210/02 ,  B41C2210/06 ,  B41C2210/22 ,  B41C2210/24 ,  B41C2210/262 ,  Y10S430/145

    Abstract: A heat-sensitive lithographic printing plate precursor is disclosed which comprises a hydrophilic support and an oleophilic coating thereon which comprises an infrared light-to-heat converter, an alkali-soluble binder and a polymeric developer accelerator. The polymeric developer accelerator is preferably a phenolic formaldehyde resin comprising at least 70 mol % of meta-cresol as recurring unit or at least 40 mol % of monohydroxy benzene cresol as recurring unit. The PDA may also be a phenolic resin which comprises at least 5 mol % of a recurring monomeric unit having at least one phenolic hydroxyl group and at least one alkali solubilising group. The polymeric developer accelerator improves the sensitivity while maintaining a good under-exposure latitude and a good developer resistance of the printing plate.

    Abstract translation: 公开了一种热敏平版印刷版原版，其包含亲水载体和其上的亲油性涂层，其包含红外光热转换器，碱溶性粘合剂和聚合显影剂促进剂。 聚合显影剂促进剂优选为包含至少70mol％的间甲酚作为重复单元或至少40mol％的单羟基苯甲酚作为重复单元的酚醛树脂。 PDA还可以是酚醛树脂，其包含至少5摩尔％的具有至少一个酚羟基的重复单体单元和至少一个碱增溶基团。 聚合物显影剂促进剂在保持良好的低曝光宽容度和印刷版的良好显影剂抗性的同时提高了灵敏度。

    Positive-working lithographic printing plate precurosors
    72.
    发明申请
    Positive-working lithographic printing plate precurosors 审中-公开
    正版平版印刷版预处理

    公开(公告)号：US20050106503A1

    公开(公告)日：2005-05-19

    申请号：US11017396

    申请日：2004-12-20

    Applicant: Joan Vermeersch ,  Marc Van Damme

    Inventor： Joan Vermeersch ,  Marc Van Damme

    IPC: B41C1/10 ,  B41M5/36 ,  B41N1/14 ,  G03F7/075 ,  G03F7/00

    CPC classification number: B41C1/1016 ,  B41C2201/04 ,  B41C2210/02 ,  B41C2210/06 ,  B41C2210/22 ,  B41C2210/24 ,  B41C2210/262 ,  B41M5/368 ,  B41N1/14 ,  G03F7/0752 ,  Y10S430/145

    Abstract: A positive-working printing plate precursor for wet lithographic printing is disclosed which comprises a support having a hydrophilic surface and a coating comprising a first layer closest to the support, said first layer containing an oleophilic phenolic resin soluble in an aqueous alkaline developer, and a second layer containing an amphyphilic polymer, wherein (c) the second layer is capable of preventing the aqueous alkaline developer from penetrating into the first layer to an extent that substantially no dissolution of unexposed coating occurs upon immersion in the aqueous alkaline developer during a time period t2; (d) and wherein said capability of the second layer of preventing the aqueous alkaline developer from penetrating into the first layer is reduced upon exposure to heat or light to an extent that substantially complete dissolution of exposed coating occurs upon immersion in the aqueous alkaline developer during a time period t1; wherein t2>t1 and t2−t1 is at least 10 seconds; and wherein the amphyphilic polymer is a block- or graft-copolymer comprising (i) a poly(alkylene oxide) block and (ii) a block comprising siloxane and/or perfluorohydrocarbon units.

    Abstract translation: 公开了用于湿平版印刷的正性印刷版前体，其包含具有亲水表面的载体和包含最靠近载体的第一层的涂层，所述第一层含有可溶于碱性显影液的亲油酚醛树脂，和 第二层含有两亲性聚合物，其中（c）第二层能够防止水性碱性显影剂渗透到第一层中，使得在一段时间内浸入含水碱性显影剂中基本上不会溶解未曝光的涂层 t 2 2; （d），并且其中防止水性碱性显影剂渗透到第一层中的第二层的所述能力在暴露于热或光时减少到在浸入含水碱性显影剂中时基本上完全溶解暴露涂层的程度 时间段t 1＆lt; 1＆gt;; 其中t 2 2和t 2 -T 1 H 1至少为10秒; 并且其中所述无亲性聚合物是包含（i）聚（环氧烷）嵌段和（ii）包含硅氧烷和/或全氟烃单元的嵌段的嵌段或接枝共聚物。

    Positive-working lithographic printing plate precursors
    73.
    发明授权
    Positive-working lithographic printing plate precursors 有权
    正性平版印刷版前体

    公开(公告)号：US06846613B2

    公开(公告)日：2005-01-25

    申请号：US10116948

    申请日：2002-04-05

    Applicant: Joan Vermeersch ,  Marc Van Damme

    Inventor： Joan Vermeersch ,  Marc Van Damme

    IPC: B41C1/10 ,  B41M5/36 ,  B41N1/14 ,  G03F7/075 ,  G03F7/11 ,  G03F7/30

    CPC classification number: B41C1/1016 ,  B41C2201/04 ,  B41C2210/02 ,  B41C2210/06 ,  B41C2210/22 ,  B41C2210/24 ,  B41C2210/262 ,  B41M5/368 ,  B41N1/14 ,  G03F7/0752 ,  Y10S430/145

    Abstract: A positive-working printing plate precursor for wet lithographic printing is disclosed which comprises a support having a hydrophilic surface and a coating comprising a first layer closest to the support, said first layer containing an oleophilic phenolic resin soluble in an aqueous alkaline developer, and a second layer containing an amphyphilic polymer, wherein(a) the second layer is capable of preventing the aqueous alkaline developer from penetrating into the first layer to an extent that substantially no dissolution of unexposed coating occurs upon immersion in the aqueous alkaline developer during a time period t2;(b) and wherein said capability of the second layer of preventing the aqueous alkaline developer from penetrating into the first layer is reduced upon exposure to heat or light to an extent that substantially complete dissolution of exposed coating occurs upon immersion in the aqueous alkaline developer during a time period t1;wherein t2>t1 and t2−t1 is at least 10 seconds; and wherein the amphyphilic polymer is a block- or graft-copolymer comprising (i) a poly(alkylene oxide) block and (ii) a block comprising siloxane and/or perfluorohydrocarbon units.

    Abstract translation: 公开了用于湿平版印刷的正性印刷版前体，其包含具有亲水表面的载体和包含最靠近载体的第一层的涂层，所述第一层含有可溶于碱性显影液的亲油酚醛树脂，和 第二层，其包含（a）第二层能够防止水性碱性显影剂渗透到第一层中，使得在一段时间内浸没在碱性显影液中时基本上不会溶解未曝光的涂层 t2;（b）并且其中防止水性碱性显影剂渗透到第一层中的第二层的所述能力在暴露于热或光时降低到暴露涂层的基本上完全溶解在浸入碱性水溶液中时发生 显影剂在时间段t1期间;其中t2> t1和t2-t1至少为10分钟 nds; 并且其中所述无亲性聚合物是包含（i）聚（环氧烷）嵌段和（ii）包含硅氧烷和/或全氟烃单元的嵌段的嵌段或接枝共聚物。

    Lithographic printing method using single-fluid ink
    75.
    发明授权
    Lithographic printing method using single-fluid ink 失效
    使用单流体油墨的平版印刷方法

    公开(公告)号：US06596464B2

    公开(公告)日：2003-07-22

    申请号：US10096208

    申请日：2002-03-12

    Applicant: Marc Van Damme ,  Joan Vermeersch

    Inventor： Marc Van Damme ,  Joan Vermeersch

    IPC: G03F726

    CPC classification number: C09D11/0235 ,  B41C1/1041 ,  Y10S430/145

    Abstract: A lithographic printing method is disclosed which comprising the steps of providing an imaging material which comprises a support and an image-recording layer that is not removable with a single-fluid ink which comprises an ink phase and a polar phase; image-wise exposure of the image-recording layer to heat or light without substantially ablating said image-recording layer, thereby switching the affinity of the image-recording towards ink or an ink-abhesive fluid and thereby creating a printing master comprising a lithographic image which consists of unexposed areas that have affinity for one phase of said ink phase and polar phase and of exposed areas that have affinity for the other phase of said ink phase and polar phase; printing, wherein the single-fluid ink is supplied to the printing master. The exposed image-recording layer, which normally exhibits a poor differentiation of hydrophilicity or oleophilicity between exposed and non-exposed areas, provides high quality printed copies in combination with the single-fluid ink.

    Abstract translation: 公开了一种平版印刷方法，其包括提供成像材料的步骤，所述成像材料包括支撑体和图像记录层，所述图像记录层不可用包含油墨相和极性相的单流体油墨进行除去;图像曝光 图像记录层进行热或光而基本上不消融所述图像记录层，从而将图像记录的亲和力转换为墨水或墨水粘附流体，从而形成包括由未曝光区域组成的平版印刷图像的打印母版， 对所述油墨相和极性相的一相和对所述油墨相和极性相的另一相具有亲和力的曝光区域具有亲和力;印刷，其中单流体油墨被提供给印刷母版。 通常在曝光区域和非曝光区域之间通常表现出差的亲水性或亲油性的记录层，提供高质量的印刷品 与单流体墨水组合。

    Processless printing plate with high ratio of inorganic pigment over hardener in a hydrophilic layer
    76.
    发明授权
    Processless printing plate with high ratio of inorganic pigment over hardener in a hydrophilic layer 失效
    无机颜料与亲水层中无机颜料与固化剂的比例高

    公开(公告)号：US06576395B1

    公开(公告)日：2003-06-10

    申请号：US09599964

    申请日：2000-06-23

    Applicant: Marc Van Damme ,  Joan Vermeersch

    Inventor： Marc Van Damme ,  Joan Vermeersch

    IPC: G03F7039

    CPC classification number: B41C1/1033 ,  Y10S430/145 ,  Y10S430/146

    Abstract: 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 an ablatable cross-linked hydrophilic layer comprising an inorganic pigment and a hardener, characterized in that the ratio of said inorganic pigment over the hardener is comprised between 95/5 and 75/25 by weight.

    Abstract translation: 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感光亲油层和包含无机颜料和硬化剂的可消融交联亲水层，其特征在于： 所述无机颜料与固化剂的重量比在95/5和75/25之间。

    Heat mode sensitive imaging element for making positive working printing plates
    79.
    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

    Applicant: Joan Vermeersch ,  Marc Van Damme ,  Eric Verschueren ,  Guido Hauquier

    Inventor： Joan Vermeersch ,  Marc Van Damme ,  Eric Verschueren ,  Guido Hauquier

    IPC: G03F7039

    CPC classification number: B41C1/1016 ,  B41C2210/02 ,  B41C2210/06 ,  B41C2210/14 ,  B41C2210/22 ,  B41C2210/24 ,  B41C2210/262 ,  Y10S430/145 ,  Y10S430/146 ,  Y10S430/165

    Abstract: 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°.

    Abstract translation: 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°。

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