Patent · US Active

Sheet processing machine, in particular sheet-fed printing press and method of drying sheets

US8707578B2 · kind B2 · utility

0Cited by

19References

21Claims

0Family size

Assignee

Heidelberger Druckmaschinen AG · DE

Inventors

Jochen Jung · Sandhausen, DE
Uwe Ernst · Mannheim, DE
Rolf Muller · St. Georgen, DE

Key dates

Filing date	Dec 5, 2011
Grant date	Apr 29, 2014
Priority date	—
Expiry date	Oct 11, 2032

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41F23/0413
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A sheet processing machine, in particular a sheet-fed printing press, includes a varnishing unit and at least one combination drier for applying radiation energy and heated air to a newly varnished sheet. The at least one combination drier includes a plurality of circular or polygonal air nozzles and narrow-band high-power infrared light sources disposed between the air nozzles. The infrared light sources apply radiation at a radiation density of at least 25 kW/m2 in total to the varnished sheet. The temperature of the heated air passing through the nozzles is below 100° C., preferably below 80° C. A method of drying sheets is also provided.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.