A GUM SOLUTION FOR DEVELOPING AND GUMMING A PHOTOPOLYMER PRINTING PLATE
    2.
    发明授权
    A GUM SOLUTION FOR DEVELOPING AND GUMMING A PHOTOPOLYMER PRINTING PLATE 有权
    橡胶溶液,开发和牙龈光聚合物DRUCKPLATTE

    公开(公告)号:EP2149072B1

    公开(公告)日:2010-11-03

    申请号:EP08759565.8

    申请日:2008-05-14

    CPC classification number: G03F7/32

    Abstract: A gum solution is provided which comprises a film- forming hydrophilic polymer or surfactant, and a salt formed by reaction of an acid, selected from phosphoric acid and phosphorous acid, with a di- or tri-alkanolamine. The gum solution is suitable for developing and gumming a lithographic photopolymer printing plate precursor. Also provided is a method for preparing a lithographic printing plate wherein this gum solution is used, and whereby printing plates are obtained which exhibit an improved clean-out performance.

    METHOD OF MAKING A PHOTOPOLYMER PRINTING PLATE
    3.
    发明公开
    METHOD OF MAKING A PHOTOPOLYMER PRINTING PLATE 有权
    一种用于生产聚合物PHOTO DRUCKPLATTE

    公开(公告)号:EP1952201A2

    公开(公告)日:2008-08-06

    申请号:EP06819587.4

    申请日:2006-11-17

    Abstract: A method of making a lithographic printing plate comprising the steps of : a) providing a lithographic printing plate precursor comprising (i) a support having a hydrophilic surface or which is provided with a hydrophilic layer, (ii) a coating on said support, comprising a photopolymerizable layer, and, optionally, an intermediate layer between the photopolymerizable layer and the support, wherein said photopolymerizable layer comprises a polymerizable compound and a polymerization initiator, b) image-wise exposing said coating in a plate setter, c) optionally, heating the precursor in a preheating unit, d) developing the precursor off -press in a gumming unit by treating the coating of the precursor with a gum solution, thereby removing the non-exposed areas of the photopolymerizable layer from the support , wherein said photopolymerizable layer further comprises a polymer containing an acid group and a basic nitrogen-containing compound capable of neutralizing said acid group, or wherein said photopolymerizable layer further comprises a polymer containing an acid group which is neutralized by a basic nitrogen-containing compound.

    METHOD OF MAKING A PHOTOPOLYMER PRINTING PLATE
    6.
    发明授权
    METHOD OF MAKING A PHOTOPOLYMER PRINTING PLATE 有权
    制作光聚合物印刷板的方法

    公开(公告)号:EP1952201B1

    公开(公告)日:2011-01-12

    申请号:EP06819587.4

    申请日:2006-11-17

    Abstract: A method of making a lithographic printing plate comprising the steps of : a) providing a lithographic printing plate precursor comprising (i) a support having a hydrophilic surface or which is provided with a hydrophilic layer, (ii) a coating on said support, comprising a photopolymerizable layer, and, optionally, an intermediate layer between the photopolymerizable layer and the support, wherein said photopolymerizable layer comprises a polymerizable compound and a polymerization initiator, b) image-wise exposing said coating in a plate setter, c) optionally, heating the precursor in a preheating unit, d) developing the precursor off -press in a gumming unit by treating the coating of the precursor with a gum solution, thereby removing the non-exposed areas of the photopolymerizable layer from the support , wherein said photopolymerizable layer further comprises a polymer containing an acid group and a basic nitrogen-containing compound capable of neutralizing said acid group, or wherein said photopolymerizable layer further comprises a polymer containing an acid group which is neutralized by a basic nitrogen-containing compound.

    Abstract translation: 制备平版印刷版的方法包括以下步骤:a)提供平版印刷版前体,其包含(i)具有亲水性表面或具有亲水层的载体,(ii)在所述载体上的涂层,其包含 可光聚合层和任选地在可光聚合层和载体之间的中间层,其中所述可光聚合层包含可聚合化合物和聚合引发剂,b)将图像曝光于涂布机中的所述涂层,c)任选加热 所述前体在预热单元中,d)通过用胶溶液处理所述前体的涂层,从而在所述上胶单元中使所述前体脱离显影,由此从所述支撑体去除所述可光聚合层的未曝光区域,其中所述可光聚合层 进一步包含含有酸基团和能够中和所述酸基团的碱性含氮化合物的聚合物, 所述可光聚合层还包含含有被碱性含氮化合物中和的酸基的聚合物。

    METHOD FOR MAKING A LITHOGRAPHIC PRINTING PLATE
    7.
    发明公开
    METHOD FOR MAKING A LITHOGRAPHIC PRINTING PLATE 审中-公开
    制造方法的平版印刷版

    公开(公告)号:EP1991418A1

    公开(公告)日:2008-11-19

    申请号:EP07704687.8

    申请日:2007-02-21

    Abstract: A method for making a lithographic printing plate is disclosed which comprises the steps of: (1) providing a heat-sensitive lithographic printing plate precursor comprising on a support having a hydrophilic surface or which is provided with a hydrophilic layer, a heat-sensitive coating, (2) image-wise exposing said precursor with IR-radiation or heat, and (3) developing said image-wise exposed precursor with an alkaline developing solution, characterised in that an antisludge agent is present in said precursor or in said developing solution or in said precursor and said developing solution, and wherein said antisludge agent is a 5-membered heteroaromatic compound, comprising a -NH-group wherein said hydrogen is capable of being deprotonated in said alkaline developing solution, selected from the group consisting of an optionally substituted benztriazole, 1, 2 , 3-triazole, tetrazole or indazole compound. According to the above method, the formation of sludge is inhibited or reduced.

    METHOD FOR MAKING NEGATIVE-WORKING HEAT-SENSITIVE LITHOGRAPHIC PRINTING PLATE PRECURSOR
    8.
    发明公开
    METHOD FOR MAKING NEGATIVE-WORKING HEAT-SENSITIVE LITHOGRAPHIC PRINTING PLATE PRECURSOR 有权
    工艺用于生产负性工作热敏感平版印刷版的先行者

    公开(公告)号:EP1765592A1

    公开(公告)日:2007-03-28

    申请号:EP05756855.2

    申请日:2005-07-01

    Abstract: A method for making a negative-working heat-sensitive lithographic printing plate precursor is provided which comprises the steps of (i) providing a support having a hydrophilic surface or which is provided with a hydrophilic layer, and (ii) applying on said support a coating which comprises a product DQ, wherein DQ is obtained by - the step of coating a solution or dispersion comprising 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 - the step of coating a solution or dispersion comprising said compound Q and coating another solution or dispersion comprising said dye D; wherein D and Q interact to form interaction product DQ, having a white light optical density which is lower than the white light optical density of dye D, and wherein said interaction product DQ is capable of at least partially releasing a dye directly after exposure to infrared light or heat, thereby forming a visible image in said coating.

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