Ink for inkjet printing of cellulose fabric and inkjet printing method

The invention relates to the technical field of ink-jet printing, in particular to ink for cellulose fabric ink-jet printing and an ink-jet printing method.The ink comprises a large-molecular-weight reactive dye, a viscosity modifier, a surface tension modifier, a humectant, a color fixing agent, a nonionic penetrant, a pH modifier and deionized water; the color fixing agent is non-ionic water-based blocked isocyanate; the large-molecular-weight reactive dye is prepared by reacting a two-reactive-group cross-linking agent with a reactive dye. The ink-jet printing method comprises the following steps: printing ink on a cellulose fabric by using an ink-jet printer, and then drying to obtain a printed fabric; spraying an aqueous solution of a cross-linking reaction type color fixing agent on the printed fabric, then spraying an aqueous solution of a compound of a crockfastness improver and a softening agent, and then carrying out heating and drying treatment. When the ink is used for ink-jet printing of the cell