Skin-friendly fish scale protein modified nylon-spandex fabric and its processing technology
The invention relates to a skin-friendly fish scale protein modified nylon-spandex fabric and its processing technology. The fabric is made of fish scale protein nylon DTY and spandex by weft knitting. The spinning process of the fish scale protein nylon DTY includes the steps of: sequentially carrying out spinning, cooling, oiling and winding on fish scale protein masterbatch and PA6 slices to obtain POY; and then post-processing the POY to obtain the fish scale protein nylon DTY. According to the invention, the fish scale protein masterbatch and the PA6 slices are blended and melt-spun to prepare the fish scale protein nylon DTY, and through special treatment, the PVA crosslinks with and wraps the fish scale protein peptide powder; and then freezing, thawing and crushing are carried out repeatedly to obtain porous PVA-modified fish scale protein peptide powder. On one hand, PVA has good compatibility with the PA6 slices. On the other hand, PVA wraps the fish scale protein peptide powder. In this way, the activity of the fish scale protein can be prevented from damage during the spinning and melting process, the original good antibacterial drying, moisture absorption and moisturizing properties and biocompatibility of the fish scale protein can be maintained and elongation at break can be further enhanced and the spinnability can be improved greatly.
1 . 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%.
2 . The skin-friendly fish scale protein modified nylon-spandex fabric according to claim 1 , the skin-friendly nylon fabric being of a double-sided sandwich structure, upper and lower yarns of the double-sided sandwich structure being made of S-twisted fish scale protein nylon drawn textured yarn and Z-twisted fish scale protein nylon drawn textured yarn, spacer yarns being made of spandex.
3 . The skin-friendly fish scale protein modified nylon-spandex fabric according to claim 2 , wherein the fish scale protein nylon drawn textured yarn has a denier number within a range of 20D to 30D and a yarn count within a range of 16F to 34F; the spandex has a denier number within a range of 20D to 30D.
4 . The skin-friendly fish scale protein modified nylon-spandex fabric according to claim 1 , wherein the dosage of the fish scale protein masterbatch is 8% to 25%.