METHOD AND APPARATUS FOR PRODUCING A CONTINUOUS WEB

This invention pertains to handling a continuous web in a continuous processing operation wherein the web incorporates therein one or more stretched elastic-type elements having retractive forces active in the cross-machine direction, and limiting shrinkage of the web in the cross-machine direction...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	RABE GERALD L, NIEMI PAUL M, RAJALA GREGORY J, HOLEWINSKI DONALD J
Format:	Patent
Sprache:	eng
Schlagworte:	APPLIANCES OR METHODS FOR MAKING CLOTHES, e.g. FORDRESS-MAKING, FOR TAILORING, NOT OTHERWISE PROVIDED FOR BANDAGES, DRESSINGS OR ABSORBENT PADS CONVEYING DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION HANDLING THIN OR FILAMENTARY MATERIAL HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PACKING PERFORMING OPERATIONS PROSTHESES STORING TRANSPORTING TREATMENT OR PROTECTION OF EYES OR EARS WEARING APPAREL
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Beschreibung
Zusammenfassung:	This invention pertains to handling a continuous web in a continuous processing operation wherein the web incorporates therein one or more stretched elastic-type elements having retractive forces active in the cross-machine direction, and limiting shrinkage of the web in the cross-machine direction to no more than about 5%. Shrinkage in the width dimension is controlled using methods including transporting the web on a sequence of rolls having on their outer working surfaces protuberances which interact with edges of openings in the web, inhibiting lateral movement of elements defining the edges of the openings, and thereby stabilizing the web in the width dimension.