System for selective treatment of a traveling paper web
AssigneeVoith Sulzer Papiermaschinen GmbH
InventorsBernhard Kohl, Stefan Reich, Wilfried Kraft
Life of this patent
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Abstract
A system for selective treatment of a traveling web, preferably of paper or cardboard, by surface treatment or impregnation in which at least one coater is in the case of web treatment arranged after a dryer group for treatment of the one side of web. At least one further coater for treatment of the other side of the web is arranged before a further dryer group. Noncontact web deflectors are arranged after the coaters and noncontact dryers can be installed retroactively in existing dryer sections.
Claims14
An apparatus for treating a traveling web of paper or cardboard in a dryer section, said apparatus comprising:
- a first coater positioned after a first dryer group to coat one side of the web, said coater indirectly applying the coating on a first uncoated side of the web, said web having a travel path substantially undeflected immediately following said first coater to a following first web deflector being disposed after said first coater;
- a second coater positioned to coat a second uncoated side of the web, said second coater positioned after said first coater and before a second dryer group, said travel path of said web being substantially undeflected immediately following said second coater to a following second web deflector being disposed after said second coater.
Dependencies are inferred from the claim text.