Bulked cloth dyeing agent, preparation method and dyeing method thereof

The invention discloses a bulked cloth dyeing agent, a preparation method and a dyeing method thereof, and belongs to the technical field of chemical textiles. The dyeing agent is prepared from acrylic resin emulsion, pigment printing paste, a dye leveler, glacial acetic acid and water, wherein the dye leveler is prepared from a peregal O emulsifier, dioctyl ester and water. The preparation method of the dyeing agent comprises the following steps: 1, uniformly mixing the dioctyl ester and the peregal O emulsifier according to a proportion for later use; then adding 45 to 55 percent of water into a reaction kettle, controlling water temperature at 25 to 35 DEG C, adding the glacial acetic acid to adjust the pH value of the water to 2 to 4, adding the pigment printing paste, then performing uniform stirring, adding the acrylic resin emulsion, then performing uniform stirring, adding the uniformly mixed dye leveler, finally adding the remaining water, and then performing uniform stirring, thus obtaining the dyei