Preparation method of skin-imitating dressing and skin-imitating dressing

• Main Author: ZHANG KEYAN
• Format: Patent
• Language: Chinese; English
• Published: 06.06.2023
• Subjects: BRAIDING; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; COTTON-WOOL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS; FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; HUMAN NECESSITIES; HYGIENE; KNITTING; LACE-MAKING; LAUNDERING; MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS; MEDICAL OR VETERINARY SCIENCE; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; NATURAL OR ARTIFICIAL THREADS OR FIBRES; NON-WOVEN FABRICS; SPINNING; TEXTILES; TREATMENT OF TEXTILES OR THE LIKE; TRIMMINGS; WADDING

The invention discloses a preparation method of an imitated skin dressing and the imitated skin dressing. The method comprises the following steps: S1, preparing an anionic waterborne polyurethane spinning solution and a cationic waterborne polyurethane spinning solution into a polyurethane layer according to different proportions by adopting an electrostatic spinning process; and S2, carrying out heat treatment on the polyurethane layer by adopting a heat treatment process. S3, the antibacterial layer is attached to the polyurethane layer obtained after heat treatment; s4, attaching the wound contact layer to the antibacterial layer. According to the preparation method of the skin-imitating dressing and the skin-imitating dressing disclosed by the invention, the skin-imitating wrinkle appearance is presented, so that the polyurethane layer has high ductility, high elasticity and resilience, and can be dynamically attached to a joint part. 本发明公开了一种仿皮肤敷料的制备方法及仿皮肤敷料，其方法部分包括如下步骤：S1用于将阴离子型水性聚氨酯纺丝液和阳离子型水性聚氨酯纺丝液按不同