Research On 3D Model Of Printing-form Surface Appearance And Application

With the laser engraving technology was widely used in the field of flexography, “flat dot” came into being. The special appearance of dots made the printing-form had a good printing stability. Based on the requirements of graphic reproduction about the printing-form surface features, and according to the “flat dot” for modeling, this paper researched on the three-dimensional dot mathematical model from the theory, principles and technologies. The mathematical model was constructed by multi-function combination method, which to describe the three-dimensional dot of printing-form surface.According to the mathematical model, we can obtain the description content of the three-dimensional dot appearance after image screening. To write C program and generate three-dimensional date files(OBJ files). After handling with those dates, we can use three-dimensional print technology to produce three-dimensional dot solid models of the printing-form surface.Research on three-dimensional dot solid models provided a new way for flexographic platemaking and provided the guide for flexographic screening. At the same time, three-dimensional dot models provide new technical support for image dates processing of three-dimensional printing equipment.