▎ 摘　　要

NOVELTY - Polyamide tufted recyclable yarn comprises modified polyamide fiber, cotton fiber and bamboo fiber. The modified polyamide fiber comprises 40-80 pts. wt. polyamide fiber, 10-20 pts. wt. lignin-graphene composite, 5-6 pts. wt. bamboo charcoal powder, 2-3 pts. wt. kaolin, 8-10 pts. wt. aqueous polyurethane, 1-3 pts. wt. sophorolipids, 20-30 pts. wt. N,N-dimethylamide, 6-8 pts. wt. silane coupling agent, 10-20 pts. wt. ethanol, and 30-50 pts. wt. water. USE - The polyamide fiber tufting recyclable yarn is useful for preparing automobile carpet, which is useful in interior trim of an automobile. . ADVANTAGE - The automobile carpet/polyamide fiber tufting recyclable yarn: has excellent comprehensive performance and has broad market prospects; has excellent wear resistance, remarkable aging resistance performance, and can be recycled and reused; is simple and the ratio is strict. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: a method for preparing polyamide tufted recyclable yarn comprising taking 80-100 pts. wt. modified polyamide fiber, 5-10 pts. wt. cotton fiber, 3-8 pts. wt. bamboo fiber, and mixing modified polyamide fiber, after cotton fiber and bamboo fiber are mixed, carding, drawing, coarse sanding, spinning, and twisting are carried out to obtain polyamide yarn, performing tufting to the polyamide yarn the tufting machine, obtaining the polyamide tufted velvet can be recycled yarn; an automobile carpet, comprising a carpet surface layer, an anti-skid layer and an antibacterial layer in turn, and a hot-melt adhesive interlining between the layers, the thickness of the carpet surface layer is 3-8 mm, which is spun from the polyamide tufted recyclable yarn, the thickness of the anti-skid layer is 10-15 mm, made of polyurethane foam material, the thickness of the antibacterial layer is 10-20 μm, made of chitin fibers and carbon fibers, and the hot-melt adhesive interlining is copolyester and/or ethylene-vinyl acetate copolymer, and the laying amount of the hot-melt adhesive interlining is 100-200 g/m; and2 a method for preparing automobile carpet, comprising (1) taking the yarn tufted velvet as the warp and weft, weaving to obtain the carpet surface layer, and (2) placing the hot melt adhesive between the carpet surface layer and the skid-proof layer and between the skid-proof layer and the antibacterial layer, the heat is thermally compounded into the automobile carpet in the heat bonding equipment, where the bonding machine speed is 6-10 cm/second, the thermal bonding temperature is 120-140 ℃, the thermal bonding time is 60-90 seconds, the bonding pressure is 0.07-0.08 MPa.