Kimberly-clark Worldwide, Inc.

Valmet-karlstad Ab

Randall James Le Valley

Frank Stephen Hada

Ronald Frederick Gropp

Philip Sim Lin

James Monroe Perkins

Lowell Everett Thoms

Tommy Rolf Karlsson

Bernt Erik Klerelid

Brian Douglas Klaubert

An apparatus for slitting a sheet material web as it is wound onto a roll including at least one winding drum supporting the web, a moveably reel spool positioned in a parallel and spaced apart relationship with the winding drum, a slitting device and a control system. The slitting device includes a track member and a slitting member moveably mounted on the track member. The slitting member continuously slits the sheet material web longitudinally along its length as it is wound onto the roll. The control system controls the position of the slitting member on the track so as to maintain a predetermined penetration of the slitting member within the roll as the roll increases in size. A method for continuously slitting the roll includes carrying the sheet material web over a winding drum, depositing the sheet material web onto a rotating reel spool to form a roll of sheet material web, moving the slitting member so as to continuously slit the sheet material web on the roll and controlling the movement of the slitting member with a control system so as to maintain a predetermined depth of penetration of the slitting member within the roll.

Method and apparatus for slitting a sheet material web

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.

Apparatus and method for winding paper

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Marysville, WA, United States of America

Randall James Le Valley