An apparatus and method for forming air-laid absorbent cores

An apparatus for forming air-laid absorbent cores, having a first and second mat-forming wheel, means for transferring a core element on the first mat-forming wheel onto a core element on the second mat-forming wheel while the latter core element still is maintained in its mold. The apparatus has me...

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Bibliographische Detailangaben
Hauptverfasser:	HENRIK CARLEN, GUNNAR EDWARDSON
Format:	Patent
Sprache:	eng
Schlagworte:	BANDAGES, DRESSINGS OR ABSORBENT PADS BRAIDING COTTON-WOOL DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION HUMAN NECESSITIES HYGIENE KNITTING LACE-MAKING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL MEDICAL OR VETERINARY SCIENCE NATURAL OR ARTIFICIAL THREADS OR FIBRES NON-WOVEN FABRICS ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PERFORMING OPERATIONS PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING PROSTHESES SPINNING TEXTILES TRANSPORTING TREATMENT OR PROTECTION OF EYES OR EARS TRIMMINGS WADDING
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Beschreibung
Zusammenfassung:	An apparatus for forming air-laid absorbent cores, having a first and second mat-forming wheel, means for transferring a core element on the first mat-forming wheel onto a core element on the second mat-forming wheel while the latter core element still is maintained in its mold. The apparatus has means for applying a protective layer to the bottom of each mold of the second mat-forming wheel, means for applying a web of casing material on the peripheral surface of the first mat-forming wheel, means for guiding said web of casing material onto the periphery of the second mat-forming wheel, and means for changing the synchronization of the mat-forming wheels in order to control the time at which the leading edge of a mold on one of the mat-forming wheels passes the nip. A method of producing cores with different sizes without change of molds.