The invention relates to easily scrubbed graffiti art watercolor paint and a preparation method. The preparation method comprises the following steps of: heating and boiling deionized water, then stopping heating, adding glycerine and solution of Kathon, and stirring to dissolve the mixture; adding
polyvinyl alcohol with low degree of alcoholysis, stirring to dissolve the mixture to obtain the
mixed solution, then adding solution of
polyacrylamide, and uniformly stirring the
mixed solution to obtain the
viscose; adding
lithopone and
pigment powder into the
viscose, and uniformly stirring the
mixed solution to obtain the crude
slurry; and adding the crude
slurry into a hopper of a three-roll grinder, and allowing the crude
slurry to flow into a
grinding roller and
grinding the crude slurry to obtain the color
pigment slurry, and allowing the color
pigment slurry to flow into a storage
barrel to obtain the finished product. The easily scrubbed graffiti art watercolor paint has bright color and
powder texture, and film forming property, and is difficult to permeate from the surface, and is easy to be scrubbed by cold and hot water; and in addition, non-
sugar-derived material, namely
polyvinyl alcohol with the low degree of alcoholysis is used in a formula, and the paint is difficult to be used by the
microorganism, such as mycete, compared with the traditional paint which uses the
sugar-derived material, such as
water soluble starch, Arabic gum and peach gum, and the
shelf life thereof is obviously prolonged.