▎ 摘　　要

NOVELTY - Antibacterial direct-jet ink for digital printing, comprises 30-60 wt.% color paste, 10-35 wt.% solvent, 1-10 wt.% acetylenic glycol surfactant, 0.1-3 wt.% silane surfactant, and 20-40 wt.% water; where the color paste includes 10-30 wt.% disperse dye, 15-40 wt.% solvent, 1-20 wt.% sodium lignin sulfonate, 1-25 wt.% acrylate sulfonic acid sodium polymer, 1-25 wt.% styrene acrylic polymer, 1-8 wt.% polyoxyethylene ether dispersant, 0.1-10 wt.% graphene quantum dots, 0.1-5 wt.% alkyne diol surfactant and 10-30 wt.% water. The disperse dyes are disperse red 60, disperse blue 359, disperse blue 360, disperse yellow 54 or disperse brown 27; the solvent is a mixture of glycerin and diglycerin. USE - The antibacterial digital printing direct-injection ink is used for direct-injection printing on cloth. ADVANTAGE - The antibacterial digital printing direct-injection ink not only has good color rendering effect, but also has durable and efficient antibacterial effect. DETAILED DESCRIPTION - Antibacterial direct-jet ink for digital printing, comprises 30-60 wt.% color paste, 10-35 wt.% solvent, 1-10 wt.% acetylenic glycol surfactant, 0.1-3 wt.% silane surfactant, and 20-40 wt.% water; where the color paste includes 10-30 wt.% disperse dye, 15-40 wt.% solvent, 1-20 wt.% sodium lignin sulfonate, 1-25 wt.% acrylate sulfonic acid sodium polymer, 1-25 wt.% styrene acrylic polymer, 1-8 wt.% polyoxyethylene ether dispersant, 0.1-10 wt.% graphene quantum dots, 0.1-5 wt.% alkyne diol surfactant and 10-30 wt.% water. The disperse dyes are disperse red 60, disperse blue 359, disperse blue 360, disperse yellow 54 or disperse brown 27; the solvent is a mixture of glycerin and diglycerin. The acrylate sodium sulfonate polymer is Huntsman TERSPERSE-2700 or Huntsman TERSPERSE-2610; the styrene acrylic polymer is BASF-Sokalan-CP-5 or BASF Sokalan-CP-9; the silane surfactant is gas surdynol-960 or gas surdynol-604. The graphene quantum dots are graphene quantum dots modified by cyclodextrin, and the modification method is: the graphene quantum dots, water and β-cyclodextrin are mixed and then ball-milled, and then the ball-milling medium is separated to obtain a slurry, and the slurry is dried to obtain the cyclodextrin-modified graphene quantum dots. INDEPENDENT CLAIMS are included for: preparing the antibacterial digital printing direct-jet ink, comprising: preparing color paste: obtaining the raw materials, mixing the raw materials of the color paste, and stirring evenly to obtain a dispersion liquid, after the dispersion liquid is subjected to impurity removal treatment, it is sent to a grinder for grinding to obtain a color paste; preparation of ink: preparing the obtained color paste with a solvent, an acetylenic glycol surfactant 1, mixing the silane surfactant and water, stirring evenly to obtain a mixed solution, centrifuging and filtering the mixed solution to obtain the antibacterial digital printing direct-jet ink; digital printing direct-injection process, comprising through a direct-injection printer, the antibacterial digital printing direct-injection ink is printed on the cloth, and then the cloth is sent to the color development machine used for drying and color development, where the color development temperature is 180-220°C, and the color development time is 0.5-10 minutes, and after the color development, the finished product is obtained; and printed product, where the bacteriostatic rate of the printed product against Escherichia coli and Staphylococcus aureus is ≥ 99%, and against Candida albicans antibacterial rate is ≥ 90%, the anti-mite efficiency is ≥ 60%, and the anti-mildew grade is above 0.