Method for manufacturing bio-based microfiber base cloth by non-decrement process

• Main Authors: LI CHAO, ZHANG JUNFENG, JI CHENG, ZHAO LIE, YANG HONGYING, XU HUAWEI, HU YITAO
• Format: Patent
• Language: Chinese; English
• Published: 01.12.2023
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; BRAIDING; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; COTTON-WOOL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR; KNITTING; LACE-MAKING; LAUNDERING; MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL; NATURAL OR ARTIFICIAL THREADS OR FIBRES; NON-WOVEN FABRICS; SPINNING; TEXTILES; TREATMENT OF TEXTILES OR THE LIKE; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS; TRIMMINGS; WADDING; WALL, FLOOR OR LIKE COVERING MATERIALS, e.g. LINOLEUM,OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF AFIBROUS WEB COATED WITH A LAYER OF MACROMOLECULARMATERIAL

The invention discloses a method for manufacturing bio-based microfiber base cloth by a non-decrement process, which comprises the following steps of: preparing bio-based superfine fibers by taking bio-based nylon or bio-based PET (polyethylene terephthalate) as a component A material and TPU (thermoplastic polyurethane) as a component B material and adopting a composite spinning process, and sequentially cutting, carding, lapping and needling the superfine fibers to obtain superfine fiber needled cloth, the preparation method comprises the following steps: heating and softening needle-punched cloth in a drying oven, cooling and ironing the needle-punched cloth, firstly dipping the ironed non-woven fabric in pure DMF (Dimethyl Formamide) to pre-dissolve TPU (Thermoplastic Polyurethane) in fibers, then dipping the non-woven fabric dipped in the DMF into polyurethane resin, and finally solidifying, washing and drying to obtain the bio-based microfiber base cloth adopting the non-decrement process. According to