APPARATUS AND METHOD FOR STRETCHING AND APPLYING ELASTIC SEGMENTS TO A CARRIER WEB

A method and apparatus for applying discrete stretched film portions to a carrier web includes conveying a continuous elastic film in a machine direction, operating a cutting unit to cut the continuous elastic film into a series of discrete first film portions and discrete second film portions, sele...

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Bibliographische Detailangaben
Hauptverfasser:	KREIF, Lloyd F, SCHWARTZ, Christopher A. A, COOSE, Andrew T, FRITZ, Jeffrey W
Format:	Patent
Sprache:	eng
Schlagworte:	BANDAGES, DRESSINGS OR ABSORBENT PADS 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 HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PROSTHESES TREATMENT OR PROTECTION OF EYES OR EARS
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Beschreibung
Zusammenfassung:	A method and apparatus for applying discrete stretched film portions to a carrier web includes conveying a continuous elastic film in a machine direction, operating a cutting unit to cut the continuous elastic film into a series of discrete first film portions and discrete second film portions, selectively adjusting a feed rate of the continuous elastic film upstream of the cutting unit, transferring a first film portion and a second film portion from a vacuum drum to a first pair of arms and a second pair of arms of, respectively, of a stretch unit, stretching the first and second film portions in a cross-machine direction by separating the first and second pairs of arms in the cross-machine direction as the stretch unit rotates from a pickup position to a transfer position, and transferring the stretched first and second film portions from the stretch unit to the carrier web.