Method and device for controlling the moisture or coating quantity profile in a paper web
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United States of America Patent
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-
Jul 31, 2007
Grant Date -
Oct 12, 2006
app pub date -
Nov 22, 2001
filing date -
Nov 24, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The narrow-scale moisture profile of a paper web is controlled by profiling nozzles (11) of a profiling device (10) which cover part of the width of the web and desired variations of the moisture profile are corrected by the profiling nozzles (11). Coating quantity profile of a paper web may also be controlled. The narrow-scale coating quantity profile is controlled by profiling nozzles (11) of a profiling device (10) which cover part of the width of the web and desired variations of the coating quantity profile are corrected by the profiling nozzles (11). The device (10) for controlling the moisture profile or the coating quantity profile of a paper web has profiling nozzles (11) for controlling narrow-scale moisture profile variation, which cover a desired part of the width of the web, to correct desired variations occurring in the profile in the width direction of the web.
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