Preparation method of nano disperse dye capsule for textile printing

The invention discloses a preparation method of a nano disperse dye capsule for textile printing, which comprises the following steps: completely dissolving a certain amount of emulsifier in water to obtain an emulsifier solution as a water phase, and adding a certain amount of disperse dye into a polymeric monomer, a co-emulsifier, a crosslinking monomer and an initiator. A disperse dye, a polymer shell and a cross-linking monomer are compounded into a nanocapsule through a miniemulsion polymerization method, the polymer shell is used as a color development place of the disperse dye during printing, so that printed fabric has bright color and provides an adhesion effect of the dye and the fabric, and the cross-linking monomer loses water and is cross-linked during high-temperature baking and color fixation; the acting force between polymer shells is improved, the fastness is improved, and the use of a large amount of adhesive is reduced. The nano disperse dye capsule is applied to printing of textiles, and h