Equipment and method for producing and/or treating a fibrous web
AssigneeVoith Paper Patent GmbH
InventorsRoland Mayer, Antje Stein, Markus Oechsle, Frank Wegehaupt
Life of this patent
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Abstract
Device and process for producing and treating a fibrous web. The device includes a moistening unit structured and arranged to simultaneously influence a cross machine moisture profile of the web and the curl of the web independently of each other. 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.
Claims55
A device for at least one of treating and producing a web comprising:
- a moistening unit having at least one nozzle structured and arranged to simultaneously influence a cross machine moisture profile of the web and a curl of the web,
- the at least one nozzle comprising a plurality of rows of nozzles arranged in an area of a roll, and
- said rows of nozzles being oriented along a curved path around the roll and applying moisture to a side of the web opposite the roll.
A device for at least one of treating and producing a web comprising:
- a moistening unit having at least one nozzle structured and arranged to simultaneously influence a cross machine moisture profile of the web and a curl of the web,
- said at least one nozzle comprising a plurality of rows of nozzles arranged in an area of a roll and said plurality of rows of nozzles includes at least one pneumatic atomizer nozzle, and
- each row of the rows of nozzles applying moisture to a different portion of the web as it travels along a curved path around the roll and applying moisture to a side of the web opposite the roll.
A device for at least one of treating and producing a web comprising:
- a moistening unit having at least one nozzle structured and arranged to simultaneously influence a cross machine moisture profile of the web and a curl of the web,
- said at least one nozzle comprising a plurality of rows of nozzles arranged in an area of a roll and said plurality of rows of nozzles includes nozzles wherein a throughput comprises a portion influencing the cross machine moisture profile and a portion moistening the curl,
- said portion influencing the curl being provided as a base load, and
- said base load being adjustable in a range in or between 10% and 50% of the total nozzle throughput.
Dependencies are inferred from the claim text.