FLEXOGRAPHIC PRINTING PLATE

The present invention provides a flexographic printing plate which is capable of achieving both of the reduction in dot gain of fine dots and satisfactory ink laydown on a solid-printed part. A flexographic printing plate obtained from a flexographic printing plate precursor comprising at least a su...

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Bibliographische Detailangaben
Hauptverfasser:	NAKAMORI, Masahiko, YOSHIMOTO, Kazuya, HIGO, Eri
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPARATUS SPECIALLY ADAPTED THEREFOR CINEMATOGRAPHY COLOUR PRINTING ELECTROGRAPHY HOLOGRAPHY LINING MACHINES MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING,INKING, DAMPING, OR THE LIKE MATERIALS THEREFOR ORIGINALS THEREFOR PERFORMING OPERATIONS PHOTOGRAPHY PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES PHYSICS PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM PRINTING PRINTING PLATES OR FOILS PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTINGSURFACES STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	The present invention provides a flexographic printing plate which is capable of achieving both of the reduction in dot gain of fine dots and satisfactory ink laydown on a solid-printed part. A flexographic printing plate obtained from a flexographic printing plate precursor comprising at least a support (A) , a photosensitive resin layer (B) and a heat-sensitive mask layer (C) which are laminated in this order, characterized in that the composite elastic modulus of each dot is 30 to 80 Mpa and the composite elastic modulus of each solid-printed part is 5 to 15 MPa. A photosensitive resin composition constituting the photosensitive resin layer (B) comprises (a) a polymer prepared by polymerizing a conjugated diene, (b) an ethylenically unsaturated compound and (c) a photopolymerization initiator, wherein the content of the photopolymerization initiator (c) in the photosensitive resin composition is 2 to 9% by mass, wherein the ethylenically unsaturated compound (b) includes a (meth)acrylate compound (i) having a number average molecular weight of 100 to 600, wherein the content of the compound (i) in the photosensitive resin composition is 5 to 16% by mass, and wherein the ratio of the mass of the photopolymerization initiator (c) and the mass of the compound (i) in the photosensitive resin composition is within the range of 0.20 to 0.55.