US 12,202,291 B2
Image-providing printing forme, and method for producing a printing forme
Armin Senne, Ettenheim (DE)
Assigned to ContiTech Elastomer-Beschichtungen GmbH, Hannover (DE)
Appl. No. 16/771,843
Filed by ContiTech Elastomer-Beschichtungen GmbH, Hannover (DE)
PCT Filed Oct. 16, 2018, PCT No. PCT/EP2018/078132
§ 371(c)(1), (2) Date Aug. 6, 2021,
PCT Pub. No. WO2019/120679, PCT Pub. Date Jun. 27, 2019.
Claims priority of application No. 10 2017 223 385.0 (DE), filed on Dec. 20, 2017.
Prior Publication US 2021/0171745 A1, Jun. 10, 2021
Int. Cl. B41N 1/12 (2006.01); B41C 1/045 (2006.01); B41C 1/05 (2006.01); B41F 9/00 (2006.01); B41F 13/11 (2006.01)
CPC B41N 1/12 (2013.01) [B41F 13/11 (2013.01); B41C 1/045 (2013.01); B41C 1/05 (2013.01); B41F 9/00 (2013.01)] 18 Claims
OG exemplary drawing
 
1. 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.