NONWOVEN FABRIC LAMINATE WITH ENHANCED BARRIER PROPERTIES

There is provided a laminate of nonwoven fabrics for barrier applications which has improved ratios of barrier and strength to weight, of softness to strength and of vapor transmission to barrier. The laminate has a meltblown layer sandwiched between spunbond layers to produce an SMS laminate. The m...

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Bibliographische Detailangaben
Hauptverfasser:	STRACK, DAVID CRAIGE, LAWSON, MARY KATHERINE, LOWERY, RANDALL DEE, BRADLEY, STEPHEN STEWART, ZEMLOCK, DEBORAH JEAN
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACCESSORIES BANDAGES, DRESSINGS OR ABSORBENT PADS BRAIDING CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES COTTON-WOOL DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS DIAGNOSIS DISINFECTION, STERILISATION, OR DEODORISATION OF AIR FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR FOMENTATION HUMAN NECESSITIES HYGIENE IDENTIFICATION KNITTING LACE-MAKING LAUNDERING 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 MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MEDICAL OR VETERINARY SCIENCE METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL NON-WOVEN FABRICS ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES OUTERWEAR PERFORMING OPERATIONS PROSTHESES PROTECTIVE GARMENTS SURGERY TEXTILES TRANSPORTING TREATMENT OF TEXTILES OR THE LIKE TREATMENT OR PROTECTION OF EYES OR EARS TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS TRIMMINGS WADDING WEARING APPAREL
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Beschreibung
Zusammenfassung:	There is provided a laminate of nonwoven fabrics for barrier applications which has improved ratios of barrier and strength to weight, of softness to strength and of vapor transmission to barrier. The laminate has a meltblown layer sandwiched between spunbond layers to produce an SMS laminate. The meltblown and spunbond layers may have between 0.1 to 2.0 weight percent of a fluorocarbon and the meltblown layer preferably between 5 and 20 weight percent polybutylene. The laminate also may have pigments if desired. Such laminates are useful for garments.