Skin-friendly fish scale protein modified nylon-spandex fabric and its processing technology

A skin-friendly fish scale protein modified nylon-spandex fabric, made of fish scale protein nylon drawn textured yarn and spandex by weft knitting, wherein a spinning process of the fish scale protein nylon drawn textured yarn comprises:

• adding fish scale protein masterbatch and polyamide 6 slices in proportion to a screw extruder;
• and then sequentially carrying out spinning, cooling, oiling and winding to obtain fish scale protein nylon pre-oriented yarn;
• and then post-processing the fish scale protein nylon pre-oriented yarn to obtain the fish scale protein nylon drawn textured yarn;
• the fish scale protein masterbatch is made by blending melting, extrusion granulation and vacuum drying from the following components by mass:
• 75% to 85% of polyamide 6 slices, 15% to 25% of polyvinyl alcohol modified fish scale protein peptide powder;
• in the polyvinyl alcohol modified fish scale protein peptide powder, the fish scale protein peptide powder accounts for 30% to 55% and polyvinyl alcohol accounts for 45% to 70%;
• the polyvinyl alcohol modified fish scale protein peptide powder is prepared by steps of:
• preparing an aqueous solution of polyvinyl alcohol;
• ultrasonically dispersing the fish scale protein peptide powder in deionized water, then pouring the resulting fish scale protein peptide powder solution into the aqueous solution of polyvinyl alcohol, stirring the mixed solution thoroughly, and adding a boric acid solution dropwise so that the polyvinyl alcohol crosslinks with and wraps the fish scale protein peptide powder;
• and carrying out repeated freeze-drying and crushing to obtain the polyvinyl alcohol modified fish scale protein peptide powder with a porous surface;
• wherein the collagen content of the fish scale protein nylon drawn textured yarn is within a range of 0.3% to 2.5%.