Pad for embossing device
AssigneeMAN Roland Druckmaschinen AG
InventorsHans-Georg Eitel, Rainer Gebhardt, Wolfgang Mexner, Uwe Puschel, Michael Reising, Guido Reschke, Jurgen Scholzig, Michael Zinke
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Abstract
For transferring an image-forming layer from a transfer foil a printing sheet, an adhesive layer is first applied to the sheet to be printed. The transfer foil provided with the image-forming layer is guided past the printing sheet under pressure, in a coating module (2), such that the image-forming layer adheres to the adhesive and an image is created. The present invention provides a foil transfer device that includes a substrate on the press cylinder that has a reduced adhesiveness relative to the transfer foil.
Claims12
1-11. (canceled)
A device for transferring an imaging-forming layer from a transfer foil to a printing sheet comprising:
- an application unit for coating an image area of the printing sheet with an adhesive pattern;
- and
- a coating module for transferring the image-forming layer from the transfer foil to the printing sheet, the coating module including an impression cylinder and a press cylinder that define a transfer gap therebetween, the transfer foil being guidable around at least a portion of the press cylinder and being guidable under pressure through the transfer gap together with the printed sheet with a coated side of the transfer foil that includes the image-forming layer in contact with the printing sheet such that the image forming layer is transferred to the image area of the printing sheet having the adhesive pattern;
- the press cylinder having a low-friction covering that limits adhesion with the transfer foil.
The device according to one or more of the preceding claims wherein the low-friction covering has a surface with a base structure comprising a plurality of densely packed, small glass spheres arranged at substantially the same height and a plurality of additional surface elements having a height different than that of the base structure.
Dependencies are inferred from the claim text.