PERMEABLE NONWOVEN FABRIC

• Main Authors: NAKAHIGASHI, TOSHIKO, ZEISHO, KAZUYA, YAHANASHI, MASAHIRO
• Format: Patent
• Language: English; French; Japanese
• Published: 10.05.2013
• Subjects: 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; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; FOMENTATION; HUMAN NECESSITIES; HYGIENE; KNITTING; LACE-MAKING; LAUNDERING; MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL; MEDICAL OR VETERINARY SCIENCE; NON-WOVEN FABRICS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PROSTHESES; TEXTILES; 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

The objective of this invention is to provide a permeable nonwoven fabric imparted with uniform permeability for smoothly absorbing urine, bodily fluids, and the like. This permeable nonwoven fabric is characterized in comprising a polyolefin thermoplastic fiber, the average value and CV value of the permeable flow length value at a 45° inclination in the MD direction of the nonwoven fabric being respectively no more than 90 mm and no more than 5.0, and the R value of the second-time permeability durability index being no more than 60%. L'invention concerne un tissu non tissé perméable doté d'une perméabilité uniforme destiné à l'absorption régulière de l'urine, de fluides corporels et analogues. Ce tissu non tissé perméable est caractérisé en ce qu'il comprend une fibre thermoplastique polyoléfinique, la moyenne et la valeur du coefficient de variation de la valeur de la longueur de l'écoulement perméable à une inclinaison à 45° dans la direction du SM du tissu non tissé n'étant respectivement pas supérieure à 90 mm et pas supérieure à 5,0, et la valeur R de l'indice de durabilité de la perméabilité au deuxième temps n'étant pas supérieure à 60 %.