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    PROCESS AND APPARATUS FOR THE PRODUCTION OF EXPOSED PRINTING PLATES
    5.
    发明专利
    PROCESS AND APPARATUS FOR THE PRODUCTION OF EXPOSED PRINTING PLATES 未知

    公开(公告)号：CA1058936A

    公开(公告)日：1979-07-24

    申请号：CA220347

    申请日：1975-02-18

    Applicant: BASF AG

    Inventor： LENZ WERNER ,  WOELLHAF JOSEF ,  SPRENG KLAUS ,  ZUERGER MANFRED ,  HECKE PAUL ,  HOFFMANN GERHARD ,  OBRADOVIC MILAN

    IPC: G03C1/74 ,  B29C31/04 ,  B29C31/06 ,  B29C33/26 ,  B29C35/08 ,  B29C43/10 ,  B29C43/18 ,  B29C43/34 ,  B29C70/78 ,  G03F7/16 ,  G03F7/20 ,  G03F7/26 ,  G03B27/04

    Abstract: An apparatus for the production of exposed printing plates comprising a mold having a first wall formed by the support of the printing plate to be produced and a second wall formed by a glass plate covered with an image-bearing transparency; means for introducing a predetermined amount of a fluid photopolymerizable material under pressure into the mold, said predetermined amount substantially corresponding to the volume of the resin layer of the exposed printing plate to be produced; first and second members which are movable relative to one another, said first member carrying the glass plate and said second member carrying the support, movement of the said two members toward each other serving to close said mold; at least one source of actinic radiation located in such a way that the layer of fluid photopolymerizable material can be exposed through the glass plate; and means provided on the said second member for so adjusting the support that the latter's surface is equidistant from the surface of the glass plate, and maintaining the distance between the said two surfaces during exposure of the layer of fluid photopolymerizable material, said introducing means introducing the fluid photopolymerizable material into the mold under pressure, which causes the glass plate to bend or dome outwardly of the mold, and said support-adjusting means consists for so bending or doming the support that its bent or domed surface is equidistant from the bent or domed surface of the glass plate, and for maintaining the distance between the said two surfaces during exposure of the fluid photopolymerizable material through the glass plate using said source of actinic radiation. The apparatus of the invention can be manufactured and operated easily and economically.

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