Device for applying at least one surface section of a transfer layer of a transfer film to a web of material and the use thereof

An apparatus for applying at least one surface portion of a transfer layer of a transfer film to a web of material, comprising:

• at least one support roller and at least one pressure roller for pressing the web of material and the transfer film against the at least one support roller wherein the at least one pressure roller is resiliently supported by at least one resilient arrangement and wherein the apparatus has at least one adjusting device for varying a spring rate of the at least one resilient arrangement and thus for varying a pressure contact force of the at least one pressure roller against the at least one support roller, wherein the at least one pressure roller is pneumatically or hydraulically resiliently supported and therein the at least one resilient arrangement is formed by a diaphragm spring, wherein the diaphragm spring has a diaphragm chamber, the diaphragm chamber divided by a diaphragm into a primary side and a second side and a piston rigidly connected to the on the secondary side for spring force to the at least one pressure roller.