▎ 摘　　要

NOVELTY - Manufacturing food packaging material, comprises (A) blending 0.01-5 pts. wt. graphene raw material based on 100 pts. wt. polyethylene (PE); (B) melt-extruding polyethylene (PE) and graphene raw material blend in an extruder, cooling and cutting to a predetermined size to process PE pellets containing graphene; (C) extruding graphene-containing PE pellets processed into a film processing facility and extruding into a graphene-containing PE film having a certain thickness; (D) forming a printing layer on outer surface film; (E) winding graphene-containing PE film at a constant speed and then cutting it to a required size; and (F) laminating a reinforcing film. USE - The food packaging material is useful for fruits, vegetables, and meat e.g. chicken. ADVANTAGE - The method prevents light transmission to increase the shelf life of food, and improve strength and antibacterial function of food packaging material; produces product which effectively maintains food freshness and stores food for a long time; and preserves the shape and quality of food during storage, and transportation of functional food packaging materials with high mechanical strength and antibacterial properties. DETAILED DESCRIPTION - Manufacturing food packaging material, comprises (A) blending 0.01-5 pts. wt. graphene raw material based on 100 pts. wt. polyethylene (PE); (B) melt-extruding polyethylene (PE) and graphene raw material blend in an extruder, cooling and cutting to a predetermined size to process PE pellets containing graphene; (C) extruding graphene-containing PE pellets processed into a film processing facility and extruding into a graphene-containing PE film having a certain thickness; (D) forming a printing layer on outer surface film; (E) winding graphene-containing PE film at a constant speed and then cutting it to a required size; and (F) laminating a reinforcing film, where in the step (A) graphene raw material is graphene prepared by adding 20-30 mg/ml graphene oxide powder to deionized water to obtain a first aqueous solution, adding 5-10 mg/ml mineral powder of germanium, illite, or zeolite to deionized water to obtain a second aqueous solution, obtaining a solvent by stirring monobasic sodium phosphate and choline chloride in a weight ratio of 1:1 at 50-60° C, mixing 30-80 pts. wt. second aqueous solution with 200-250 pts. wt. solvent based on 100 pts. wt. first aqueous solution and stirring at 50-60° C to obtain a graphene mixture, washing the graphene mixture using deionized water, but washing at least three times through a centrifuge to obtain a graphene solution, and freeze-drying and then pulverizing the graphene solution to obtain graphene powder. DESCRIPTION OF DRAWING(S) - The drawing shows a flowchart illustrating the method for manufacturing food packaging material (Drawing includes non-English language text). ABlending graphene raw material based on polyethylene BMelt-extruding polyethylene and graphene raw material blend in an extruder and cooling and cutting CExtruding graphene-containing polyethylene pellets processed into a film processing facility and extruding into a graphene-containing polyethylene film having a certain thickness DForming a printing layer on outer surface film EWinding and cutting FLaminating reinforcing film