The invention relates to an antibacterial
water color ink for printed matters for packaging children products and a method for preparing the same. The method comprises the following steps: firstly, according to the stated weight percentage, evenly mixing and stirring part of a
water soluble resin dispersoid, an amine stabilizer, a latent
solvent, a bactericidal agent, deionized water and an antifoaming agent, then adding a
pigment into the mixture, and dispersing the
pigment at a rotating speed of between 500 and 1,200 rpm to prepare an even
water soluble dispersed
slurry; and secondly, pumping the
water soluble dispersed
slurry obtained in the step A into a sand mill by a pump,
grinding the
slurry until the
fineness is less than or equal to 10 microns, then adding the remaining water soluble resin dispersoid, a
wetting agent and a
rheology modifier to the slurry, stirring the mixture until the materials are dispersed and mixed evenly, and adjusting the
viscosity to prepare the antibacterial
water color ink. The antibacterial
water color ink prepared by the method has good
adhesive force to various base materials or textiles, and the
varnish thereof is full and has certain flexibility; besides, the antibacterial water color ink has low smell and ultra-low VOC without PAE and
heavy metals, and has good antibacterial and antifungus functions.