▎ 摘　　要

NOVELTY - A UV-aging-resistant metal printing ink comprises 10-20 pts. wt. aqueous polyurethane resin, 20-30 pts. wt. polypropylene resin, 30-50 pts. wt. aqueous acrylic acid resin, 5-20 pts. wt. soybean oil, 15-25 pts. wt. metal pigment, 5-15 pts. wt. ethanol, 1-5 pts. wt. chitosan-graphene composite, 1-5 pts. wt. additive, 1-5 pts. wt. hollow glass beads, and 1-2 pts. wt. nano titanium dioxide. USE - UV-aging-resistant metal printing ink (claimed). DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of UV-aging-resistant metal printing ink, which involves mixing nano titanium dioxide and ethanol, adding aqueous polyurethane resin, polypropylene resin, and aqueous acrylic resin, mixing uniformly, dispersing, grinding, adding chitosan-graphene composite, ultrasonically processing for 30-40 minutes, adding the remaining raw materials, and stirring uniformly.