Environment-friendly printing ink with high adhesive force

The invention discloses an environment-friendly printing ink with high adhesive force. The environment-friendly printing ink is prepared from the following constituents in parts by weight: 10-13 parts of an alcohol-dissolving polyurethane solution, 15-18 parts of ternary hydroxyl-modified vinyl resin copolymer, 35-38 parts of a pigment, 25-29 parts of acetic acid, 18-20 parts of ethanol, 18-20 parts of rosin pentaerythrityl ester, 5-8 parts of microcrystalline wax, and 5-6 parts of acrylonitrile butadiene rubber, wherein the mass concentration of the alcohol-dissolving polyurethane solution is 36-38%. The environment-friendly printing ink with the high adhesive force disclosed by the invention is high in adhesive force, and suitable for printing various materials; the pigment is durable and free of falling off; the printing ink is quick in drying, bright in color, and free of toxic substances in the constituents; the solvent on the printed material after printing is low in residual quantity, so as to guarantee physical and psychological health for printing ink makers, pressmen and printed material users; the printing ink is good in adaptability, can be used for different seasons to obtain identical printed products, and is good in printing effect.