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    Image processing method for three-dimensional printing
    31.
    发明授权
    Image processing method for three-dimensional printing 有权
    用于三维印刷的图像处理方法

    公开(公告)号：EP2199065B1

    公开(公告)日：2012-03-21

    申请号：EP08172280.3

    申请日：2008-12-19

    Applicant: Agfa Graphics N.V.

    Inventor： Gullentops, Chris ,  Lenders, Rudi

    IPC: B29C67/00 ,  B41C1/00 ,  H04N1/40 ,  G06F3/13

    CPC classification number: B41J29/38 ,  B29C64/112 ,  B29C64/386 ,  B33Y50/00 ,  B41C1/003 ,  H04N1/40081

    Abstract: A relief print master is created by printing a sequence of layers on top of each other by means of an inkjet printing system. The top layer corresponds with the binary halftoned image that is to be printed by the print master and the lower intermediate layers are supporting layers. The features in a lower supporting layer have an area that is larger than the corresponding features in a higher supporting layer. A circular spread function is applied on the features of a higher intermediate layer to increase the area of the features in a lower intermediate layer. By using a sequence of two non-circular spread functions, the circular spread function is approximated and the number of required calculations can be reduced.

    Digital system for creating a flexographic printmaster
    34.
    发明公开
    Digital system for creating a flexographic printmaster 有权
    数字系统zur Erstellung einer flexographischen Druckvorlage

    公开(公告)号：EP2420383A1

    公开(公告)日：2012-02-22

    申请号：EP10173538.9

    申请日：2010-08-20

    Applicant: Agfa Graphics N.V.

    Inventor： Gullentops, Chris

    IPC: B41C1/00

    CPC classification number: B41C1/003 ,  B05C5/00 ,  B33Y30/00 ,  B41C1/1066 ,  B41C1/18 ,  B41J11/002 ,  B41J19/16

    Abstract: System and method for digital creation of a relief print master by means of liquid droplet deposition apparatus.
    A relief print master is created by means of a printhead that moves in a slow scan direction. The nozzles of the printhead jet droplets of a polymerisable liquid on a rotating drum. The different nozzles jet droplets simultaneously on different layers that have different diameters. As a result, the droplets jetted by different nozzles travel over different distances before landing. The effect of this is that the droplets undergo different position lag as they land on the different layers. By rotating the printhead in a plane that is orthogonal to the jetting direction this effect can be compensated for.

    Abstract translation: 通过液滴沉积装置数字创建浮雕印版母版的系统和方法。 通过在慢扫描方向上移动的打印头创建浮雕打印主机。 打印头的喷嘴在可旋转的滚筒上喷射可聚合液体的液滴。 不同的喷嘴同时喷射具有不同直径的不同层上的液滴。 结果，不同喷嘴喷射的液滴在着陆前行进不同的距离。 这样做的效果是当它们落在不同的层上时，液滴经历不同的位置滞后。 通过在与喷射方向正交的平面中旋转打印头，可以补偿该效果。

    A lithographic printing plate precursor
    36.
    发明公开
    A lithographic printing plate precursor 有权
    Lithographiedruckplattenvorläufer

    公开(公告)号：EP2366545A1

    公开(公告)日：2011-09-21

    申请号：EP10157030.7

    申请日：2010-03-19

    Applicant: Agfa Graphics N.V.

    Inventor： Van Aert, Hubertus ,  Janssens, Heidi ,  Lingier, Stefaan

    IPC: B41C1/10

    CPC classification number: B41C1/1008 ,  B41C2210/02 ,  B41C2210/04 ,  B41C2210/06 ,  B41C2210/22 ,  B41C2210/24 ,  B41C2210/262

    Abstract: A lithographic printing plate precursor comprising a support having a hydrophilic surface or which is provided with a hydrophilic layer, and a coating thereon, said coating comprising an IR absorbing agent and a polyvinylacetal binder, said polyvinylacetal comprising an acetal group having an acetal carbon atom substituted by a phenolic group, a naphtol group or an antracenol group, a second recurring unit comprising an acetal group having an acetal carbon atom substituted by an alkyl group having a hydrocarbon chain containing 1, 2 or 3 carbon atoms, and a third recurring unit comprising an acetal group having an acetal carbon atom substituted by an alkyl group having a hydrocarbon chain containing 1, 2 or 3 carbon atoms wherein the alkyl group of the acetal group of the third recurring unit is different from the alkyl group of the acetal group of the second recurring unit.
    The precursor exhibits an improved sensitivity on exposure and the stability against daylight exposure is further improved.

    Abstract translation: 一种平版印刷版前体，其包括具有亲水性表面的或具有亲水层的载体及其上的涂层，所述涂层包含IR吸收剂和聚乙烯醇缩乙醛粘合剂，所述聚乙烯醇缩醛包括具有缩醛碳原子取代的缩醛基 通过酚基，萘酚基或antacacolol基，第二重复单元包括具有由具有1,2或3个碳原子的烃链的烷基取代的缩醛碳原子的缩醛基和第三重复单元，其包含 具有被具有碳原子数为2或3的烃链的烷基取代的缩醛碳原子的缩醛基，其中第三重复单元的缩醛基的烷基不同于第二重复单元的缩醛基的烷基 第二个重复单位。 该前体对曝光具有改善的敏感性，并且进一步提高了对日光暴露的稳定性。

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