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US 6,634,115 B2Granted
Conditioning device to change the moisture content of printing stock
AssigneeNexPress Solutions LLC
InventorsKai-Michael Gundel, Gerhard Klukas, Andreas Schweizer
Life of this patent
Estimating the term…
Abstract
A conditioning device to change the moisture content of printing stock, in which the stock is brought into contact with at least one endless cloth that absorbs moisture. The endless cloth is heated by heated transport rolls. A reduction of the moisture content contributes to a reduction of distortions of the printing image in two-sided printing, especially in digital printing machines.
Claims11
Device for conditioning of printing stock (2), comprising:
- a tempering zone (10), at least one endless cloth (12) that absorbs moisture, at least two transport rolls (11) in said tempering zone (10), on which the endless cloth is tightened, said at least one endless cloth being adapted to be engaged by printing stock (2), at least one heating device (13), whereby the endless cloth (12) that absorbs moisture is heated and the heating device (13) is situated within the space wrapped around by the endless cloth (12), an evaporation zone (20), characterized by the fact that the evaporation zone (20) being situated behind the tempering zone (10), in which the printing stock (2) is guided, and the printing stock (2) being cooled at least by evaporation of moisture, and a cooling zone (30) situated behind the evaporating zone (20), having at least one endless moisture-absorbing cloth (32) and at least two transport rolls (31).
Dependencies are inferred from the claim text.