Flexographic printing original plate
AssigneeSumitomo Riko Company Limited
InventorsDaisuke Inoue, Yutaro Yamada, Hideyuki Hashimoto
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Abstract
The disclosure provides a flexographic printing original plate which comprises an adhesive layer that exhibits excellent solvent resistance and excellent adhesion to a supporting body. The disclosure provides a flexographic printing original plate 10 which sequentially comprises, on a surface of a supporting body 12, an elastic layer 16 and an adhesive layer 14, wherein the supporting body 12 contains a polyester resin and the adhesive layer 14 contains the components (a), (b) and (c) described below. (a) a polyester resin (b) an isocyanate compound (c) a xylene resin which has a melting point or softening point of 100° C. or less.
Claims4
A flexographic printing original plate, sequentially comprising a photosensitive resin layer and an adhesive layer on a surface of a supporting body,
- wherein the supporting body contains a polyester resin, and
- the adhesive layer contains the following components (a), (b), and (c):
- (a) a polyester resin
- (b) a trifunctional isocyanate compound having an isocyanurate skeleton
- (c) 10 parts by mass or more and 30 parts by mass or less of a xylene-based resin with respect to 100 parts by mass of the component (a), wherein the xylene-based resin has a melting point of 25° C. or less, and the xylene-based resin does not have a phenolic hydroxyl group and has an alcoholic hydroxyl group,
- wherein the polyester resin of the component (a) has a glass transition temperature of 20° C. or less, and
- a range of a content ratio of the component (c) to the component (b) is between 0.4 and 4.3.
Dependencies are inferred from the claim text.