Substrate for lithographic printing plate
AssigneeMylan Group
InventorMy T. Nguyen
Life of this patent
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Abstract
There is provided a lithographic printing plate substrate comprising (a) a base layer, (b) a layer of a first adhesive covering one side of the base layer except for at least two opposite edges thereof, and (c) an aluminum layer laminated onto the layer of first adhesive and said opposite edges of the base layer, the aluminum layer thereby being sealed with the base layer at said opposite edges of the base layer. There is also provided a method of manufacture thereof as well as a method of processing in view of recycling. Finally, there is provided a lithographic printing plate comprising the above substrate.
Claims23
A lithographic printing plate substrate comprising:
- a base layer,
- a layer of a first adhesive covering one side of the base layer except for at least two opposite edges thereof, and
- an aluminum layer laminated onto the layer of first adhesive and said opposite edges of the base layer, the aluminum layer thereby being in direct contact with and sealed with the base layer at said opposite edges of the base layer,
- which thereby prevent the layer of first adhesive from contacting inks and fountain solutions when the substrate is used on a printing press and reduces the risks of de-lamination of the substrate.
A device for lithographic printing comprising:
- a plate having a base layer having a first side and a second side,
- a layer of a first adhesive affixed to and covering said first side to define an area of first adhesive and at least two opposite edges which are free of first adhesive, and
- an aluminum layer laminated onto the layer of first adhesive and said opposite edges of the base layer, the aluminum layer thereby being in direct contact with and sealed with the base layer at said opposite edges of the base layer to form a plate substrate for lithographic plating.
Dependencies are inferred from the claim text.