TWI760850B

• Main Authors: KOMATSU, TAKASHI, FUJIMOTO, YUYA, OBI, RUMINA, SHIOTA, EIJI
• Format: Patent
• Language: Chinese
• Published: 11.04.2022
• Subjects: BANDAGES, DRESSINGS OR ABSORBENT PADS; BRAIDING; COFFEE MILLS; COTTON-WOOL; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; DOMESTIC ARTICLES OR APPLIANCES; DOMESTIC WASHING OR CLEANING; 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; FURNITURE; 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; SPICE MILLS; SUCTION CLEANERS IN GENERAL; 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

Provided is a non-woven fabric which is suitable for cleaning wipers, diapers, food packaging materials, etc., and has excellent water absorption and handling performance. The non-woven fabric according to the present invention contains a thermoplastic biodegradable resin, and is characterized in that fibers constituting the non-woven fabric have crimps, the flexural rigidity index in the mechanical direction (MD) of the non-woven fabric is 7.77-37.4 as defined by the following equation: flexural rigidity index in the mechanical direction (MD) = flexural rigidity (gf·cm) in the mechanical direction (MD)/{basis weight(g/m2)}2.5×106, and the bulk density of the non-woven fabric is 0.098 g/cm3 to 0.251 g/cm3.