Self-crosslinking multicolor paint and preparation method thereof

The invention belongs to the technical field of colorful water-based paint, and particularly relates to self-crosslinking colorful paint and a preparation method thereof. The self-crosslinking multicolor paint provided by the invention comprises a sand-containing color point base paint, a granulation liquid and a continuous phase, the sand-containing color point base paint comprises an acetoacetic acid group-containing multicolor base paint emulsion and a gamma-aminopropyltriethoxysilane modified pigment filler, and the continuous phase comprises an acetoacetic acid group-containing continuous phase emulsion. According to the self-crosslinking multicolor paint, through reaction mechanisms such as crosslinking reaction, multicolor points and continuous-phase room-temperature self-crosslinking in the film forming process of the sand-in-water multicolor paint are realized, and the crosslinking density and mechanical strength of a multicolor film are improved; the problems that a traditional sand-in-water multico