Alcohol-soluble polyamide gravure plastic surface printing ink

The invention relates to the technical field of printing ink, particularly discloses alcohol-soluble polyamide gravure plastic surface printing ink. The alcohol-soluble polyamide gravure plastic surface printing ink is prepared by mixing the following component by weight: 15-25% of an alcohol-soluble polyamide resin solution, 6-15% of an alcohol-soluble rosin-modified maleic acid resin solution, 2-4% of an alcohol-soluble polyketone resin solution, 5-10% of an alcohol ester-soluble nitro-cotton resin solution, 0.5-1% of wax powder, 9-30% of pigment, 30-40% of anhydrous ethanol, and 0.5-1% of an anti-settling agent. The surface printing ink disclosed by the invention adopts the alcohol-soluble polyamide resin as the main resin, and the alcohol-soluble rosin-modified maleic acid resin and the alcohol-soluble polyketone resin as the auxiliary resins, these three resins all adopt ethanol as a solvent for dissolution, and when the alcohol-soluble polyamide gravure plastic surface printing ink is prepared, ethanol is also used as a solvent system, so that benzene solvent is basically eliminated, and the problems that the benzene solvent system surface printing ink in the prior rat pollutes the environment and is harmful for human bodies and the like are solved.