FORMATION OF ELASTICIZED PORTIONS OF DISPOSABLE GARMENTS AND OTHER ARTICLES

An article having a thermally-elasticizable strip along a marginal portion is elasticized by directing heated air towards the strip at at least two different angles relative to the plane of the strip and at a velocity sufficient to cause oscillation of the marginal portion bearing the thermally-elas...

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Bibliographische Detailangaben
Hauptverfasser:	PAUL SAM WOON, WILLIAM SEAL POMPLUM, CARL GEORGE SCHROTH, ROBERT LEE POPP, ROBERT ALAN STEVENS
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 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 FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR FOMENTATION HUMAN NECESSITIES HYGIENE LAUNDERING MEDICAL OR VETERINARY SCIENCE ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES OUTERWEAR PERFORMING OPERATIONS PLEATING, KILTING, OR GOFFERING TEXTILE FABRICS OR WEARINGAPPAREL PROSTHESES PROTECTIVE GARMENTS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TEXTILES TRANSPORTING TREATMENT OF TEXTILES OR THE LIKE TREATMENT OR PROTECTION OF EYES OR EARS WEARING APPAREL WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	An article having a thermally-elasticizable strip along a marginal portion is elasticized by directing heated air towards the strip at at least two different angles relative to the plane of the strip and at a velocity sufficient to cause oscillation of the marginal portion bearing the thermally-elasticizable strip; these conditions are maintained for a dwell time long enough for elasticization when cooled to ambient conditions. Apparatus is disclosed which includes a heating chamber through which conveyor means (50, 51) conveys a stack of articles eg. diapers (21). Means for directing the heated air are louvers (60) arranged in three banks (63, 64, 65). Also included are means for circulating the heated air in the chamber.