A heat sensitive non-ablatable wasteless imaging element for providing a lithographic printing plate with a difference in dye density between the image and non image areas

Elément pour l'enregistrement de l'image sans ablation et sans résidus pour la fabrication de plaques lithographiques ayant une différence de la densité du colorant entre les plages images et non-images

Rückstandsfreies Aufzeichnungselement ohne Materialabtrag für die Herstellung von Flachdruckplatten mit unterschiedlicher Farbdichte zwischen Bild und Nicht-Bild

Abstract

According to the present invention there is provided a heat-sensitive non-ablatable wasteless imaging element for providing a lithographic printing plate, comprising on a support a top layer which is capable of forming by image-wise exposure image-wise hydrophobic and hydrophilic areas, characterized in that said imaging element contains an IR-dye capable of changing its optical density by exposure of the imaging element.

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Patent Citations (4)

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    EP-0694586-A1January 31, 1996Riedel-De Haen AktiengesellschaftUtilisation de dérivés du type d'acide disulfonique indolonine cyanine comme composés absorbant dans l'infrarouge
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NO-Patent Citations (1)

    Title
    "A LITHOGRAPHIC PRINTING PLATE" RESEARCH DISCLOSURE, no. 333, 1 January 1992, page 2 XP000281114

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    EP-1518711-A3October 12, 2005Konica Minolta Medical & Graphic Inc.Flachdruckplatte und Druckverfahren
    EP-1614541-A2January 11, 2006Agfa-GevaertMethod of making a lithographic printing plate.
    US-6653042-B1November 25, 2003Fuji Photo Film Co., Ltd.Lithographic printing plate precursor, method for producing the same, and method of lithographic printing
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    US-6815137-B2November 09, 2004Fuji Photo Film Co., Ltd.Process for producing polymer fine particles and lithographic printing plate precursor using the same
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    US-7323288-B2January 29, 2008Kodak Graphic Communications Canada CompanyLayers in printing plates, printing plates and method of use of printing plates
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    WO-2004089630-A1October 21, 2004Creo Inc.Novel layers in printing plates, printing plates and method of use of printing plates
    WO-2006136543-A2December 28, 2006Agfa Graphics NvColorant absorbant le rayonnement infrarouge