Winding – tensioning – or guiding – Convolute winding of material – Detector – control – or material responsive stop
Patent
1997-07-03
1999-05-11
Nguyen, John Q.
Winding, tensioning, or guiding
Convolute winding of material
Detector, control, or material responsive stop
2425322, 2425354, 242540, 242547, 162118, 162283, B65H18/08;18/26
Patent
active
059019182
ABSTRACT:
An apparatus and method for winding tissue webs into a parent roll is disclosed which results in greater uniformity in sheet basis weight, machine direction stretch and bulk when comparing the corresponding sheet properties taken from representative locations throughout the roll. The apparatus and method includes engaging the tissue web against a reel spool with a flexible member such as a transfer belt which traverses an unsupported span between two support rolls. The web is transferred from the transfer belt to the parent roll as the parent roll is urged against the sheet/transfer belt at a point within the unsupported span. The resulting deflection of the transfer belt is detected and, in response, the reel spool position is changed to control the deflection at a desired level. Accordingly, a predetermined light nip pressure can be applied to the roll as the tissue web is wound thereon and large parent rolls of high bulk tissue can be manufactured with desired properties when unwound.
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Gropp Ronald Frederick
Karlsson Tommy Rolf
Klaubert Brian Douglas
Klerelid Bernt Erik Ingvar
Le Valley Randall James
Nguyen John Q.
Valmet-Karlstad AB
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