Device and process for impregnating a paper or cardboard web
AssigneeVoith Paper Patent GmbH
InventorsRudiger Kurtz, Alfred Bubik
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Abstract
Device and process for impregnating web with an impregnating agent. The device includes a coating device structured and arranged to apply the impregnating agent to the web and a wide nip calender located, with respect to a web travel direction, before the coating device. The wide nip calender includes a circulating jacket and a back pressure element arranged to form a wide nip. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
Claims32
A device for impregnating web with an impregnating agent, comprising:
- a coating device structured and arranged to apply the impregnating agent to the web;
- and
- a wide nip calender located, with respect to a web travel direction, before said coating device, said wide nip calender comprising a circulating jacket and a back pressure element arranged to form a wide nip.
A process for impregnating web with an impregnating agent, comprising:
- applying the impregnating agent to the web;
- before the applying of the impregnating agent, pressing the web in a wide nip formed between a circulating jacket and a back pressure element.
A process of impregnating a web with an impregnating agent, comprising:
- pressing the web in a wide nip;
- and
- drawing impregnating agent into the web, downstream of the wide nip relative to a web travel direction, via capillary action of the web.
Dependencies are inferred from the claim text.