Process and system for reorienting fibers in a foam forming process

A process for foam forming tissue or paper webs is disclosed. A foamed suspension of fibers is deposited onto a forming fabric and contacted with a gas flow prior to drying the web. For instance, the web can contact the gas flow prior to dewatering the web. The gas flow can have a volumetric flow ra...

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Bibliographische Detailangaben
Hauptverfasser:	Mahaffey, Cleary E, Swails, Marvin E, Mallory, Mary F, Baker, Joseph K
Format:	Patent
Sprache:	eng
Schlagworte:	IMPREGNATING OR COATING OF PAPER METHODS OF PRODUCING PAPER THEREON PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PAPER-MAKING MACHINES PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS TEXTILES TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
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Beschreibung
Zusammenfassung:	A process for foam forming tissue or paper webs is disclosed. A foamed suspension of fibers is deposited onto a forming fabric and contacted with a gas flow prior to drying the web. For instance, the web can contact the gas flow prior to dewatering the web. The gas flow can have a volumetric flow rate and/or a velocity sufficient to rearrange the fibers within the web. In one embodiment, for instance, the gas flow can increase the caliper of the web, the stretch properties of the web, and/or the absorbency characteristics of the web. In one embodiment, the gas flow can be pulsed for producing a web with a distinctive pattern.