▎ 摘　　要

NOVELTY - The utility model claims a graphene composite packaging bag, comprising an outer surface layer, a middle layer and an inner layer; the outer surface layer comprises a polylactic acid film, a polyethylene film and a low density polyethylene film, a polylactic acid film, a polyethylene film and a low density polyethylene film from outside to inside, using hot pressing bonding the middle layer comprises a barrier layer and a heat-sealing layer, a printing layer is set between the barrier layer and the low-density polyethylene film, the heat-sealing layer is thermally pressed with the barrier layer through the cross-linking agent; the inner layer comprises a graphene reinforcing layer, a second adhesive layer and a graphene antibacterial layer, the graphene reinforcing layer and the heat sealing layer are thermally pressed bonding the first adhesive layer, the graphene reinforcing layer and the graphene antibacterial layer are thermally pressed bonding the second adhesive layer. The outer layer of the utility model has good toughness and strength of enhancing the packaging bag of the bag, improving the quality of the bag, and the middle layer has heat insulation function, reducing heat dissipation, and the inner layer is made of graphene for antibacterial, capable of inhibiting the growth of bacteria and without toxicity and side effect