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US 12,202,291 B2Granted
Image-providing printing forme, and method for producing a printing forme
AssigneeContiTech Elastomer-Beschichtungen GmbH
InventorArmin Senne
Life of this patent
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Abstract
An imaging printing form having a base body with an elastomeric coating, in which the elastomeric coating carries an engraving pattern. The elastomeric coating has a hard rubber with a hardness of greater than 40 Shore D, and more particularly greater than 70 Shore D. The hard rubber is based on butadiene-acrylonitrile rubber (NBR), carboxyl group-containing nitrile rubber (XNBR), hydrogenated acrylonitrile butadiene Rubber (HNBR) or combinations thereof.
Claims18
A process for the production of an image-providing printing template, the process comprising:
- a. the provision of a base;
- b. the provision of an elastomer coating on the base;
- and,
- c. the provision of an engraved pattern on the elastomer coating by engraving;
- wherein the elastomer coating comprises a hard rubber and has a hardness above 70 Shore D according to DIN ISO 7619-1, and wherein the hard rubber is based on butadiene-acrylonitrile rubber (NBR), carboxyl group-containing nitrile rubber (XNBR), hydrogenated acrylonitrile butadiene Rubber (HNBR) or combinations thereof,
- wherein the elastomeric coating is formed from a calendered sheet that is wound around the base, and
- the elastomeric coating is vulcanized by bandaging the elastomeric layer after it is applied to the base and then heating in an autoclave.
4 more elements
Dependencies are inferred from the claim text.