PRINT MEDIUM USED IN 3D PRINTING, COLOR 3D PRINTING METHOD, AND COLOR 3D PRINTER AND METHOD OF CONTROLLING SAME

摘要

The present invention relates to a three-dimensional (3D) printing method, and more particularly, to a full-color or substantially full-color 3D printing method. A 3D printing method according to an aspect of the present invention isa 3D printing method for fabricating a solid object 3D object by depositing a plurality of layers, The 3D printing method comprising: preparing a print medium including a color particle and a curable material of a liquid state, the curable material containing the color particle, wherein the color particle includes a photonic crystal particle and has a structural color defined according to a particle distance; preparing a 3D modeling data for the 3Dobject, wherein the 3D modeling data includes a layer data for at least one of the plurality of layers, and the layer data includes a shape data having a coordinate to be cured in the layer and a color data having a color value of the coordinate; preparing a working area for a specific layer of the plurality of layers, wherein the working area is a space having a predetermined thickness inward from a one surface of the printing medium; imparting a color to the print medium, wherein the color is imparted by adjusting the structural color of the color particles based on the color value of the color data among the layer data for the specific layer; by curing the curable material based on the coordinate of the shape data of the layer data for the specific layer, fixing the color imparted to the print medium and simultaneously fabricating the specific layer.