SPUN-BONDED NONWOVEN FABRIC

• Main Authors: NAKAZAWA TOMIKO, KUNIMOTO NAOSUKE, IIHAMA SHO, MOTOMURA SHIGEYUKI, SEKIOKA HIROYU, INOUE FUMIHITO
• Format: Patent
• Language: English; Japanese
• Published: 13.10.2022
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; BANDAGES, DRESSINGS OR ABSORBENT PADS; BRAIDING; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; 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; NATURAL OR ARTIFICIAL THREADS OR FIBRES; NON-WOVEN FABRICS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PROSTHESES; SPINNING; 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

To provide a spun-bonded nonwoven fabric capable of achieving both strength and flexibility.SOLUTION: A spun-bonded nonwoven fabric contains composite fibers including an area A containing propylene/α-olefin random copolymers and an area B containing ethylene-based polymers. The composite fiber is of a side-by-side type or an eccentric core-sheath type. The ratio between the area A and the area B is 70:30 to 10:90 on a mass basis. The area B has a density of 0.900 kg/m3 to 0.945 kg/m3.SELECTED DRAWING: Figure 1 【課題】強度及び柔軟性を両立し得るスパンボンド不織布の提供。【解決手段】プロピレン・α－オレフィンランダム共重合体を含む領域Ａと、エチレン系重合体を含む領域Ｂとを含む複合繊維を含むスパンボンド不織布であり、前記複合繊維は、サイドバイサイド型または偏芯芯鞘型であり、前記領域Ａと前記領域Ｂの比率が、質量基準で、７０：３０～１０：９０であり、前記領域Ｂは、密度が０．９００ｋｇ／ｍ３～０．９４５ｋｇ／ｍ３である、スパンボンド不織布。【選択図】図１