Waterborne polyurethane/peach gum composite paste for nylon fabric acid dye printing as well as preparation method and application of waterborne polyurethane/peach gum composite paste

The invention relates to a waterborne polyurethane/peach gum composite paste for nylon fabric acid dye printing as well as a preparation method and application of the waterborne polyurethane/peach gum composite paste. The paste is prepared by the following preparation method: firstly, preparing a waterborne polyurethane emulsion by taking polyethylene glycol, toluene diisocynate, monohydroxy acrylic acid, dimethylolpropionic acid and the like as raw materials; secondly, performing chemical modification on peach gum to obtain modified peach gum; then dissolving the modified peach gum in an organic solvent to prepare a peach gum emulsion; and finally, mixing the prepared polyurethane emulsion with the peach tree glue emulsion on a high-speed dispersion homogenizer to prepare the waterborne polyurethane/peach tree glue composite paste. The prepared waterborne polyurethane/peach gum composite paste is used for nylon fabric acid dye printing, and the prepared printed fabric shows that the paste removal rate is hig