▎ 摘　　要

NOVELTY - A water-resistant, salt-spray-resistant plastic printing ink contains 35-55 pts. wt. chlorinated polypropylene resin, 20-40 pts. wt. aqueous acrylic resin, 10-20 pts. wt. nano-alumina, 5-10 pts. wt. dimethyl silicone oil, 5-15 pts. wt. isopropanol, 1-5 pts. wt. chitosan-graphene composite material, 1-5 pts. wt. additive, 1-5 pts. wt. hollow glass microspheres and 1-2 pts. wt. walnut shell powder. USE - Water-resistant, salt-spray-resistant plastic printing ink (claimed). ADVANTAGE - The plastic printing ink has excellent water resistance, salt-spray-resistance and mutual capacitance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of plastic printing ink, which involves uniformly mixing nano-alumina and isopropanol, adding chlorinated polypropylene resin and aqueous acrylic resin to mixture under stirring, uniformly mixing, dispersing, grinding, adding chitosan-graphene composite material to mixture, ultrasonically dispersing for 30-40 minutes, adding remaining raw materials to mixture and uniformly stirring.