Patent ID: 9193110
Filing Date: 2015-11-24
Classification: B05D,B29C,B33Y,Y10T

Abstract:
1. A process for extrusion-based 3D printing, the process comprising steps of: applying a coating composition onto a filament, wherein the filament is comprised of a thermoplastic polymer and the coating composition is comprised of at least one material selected from the group consisting of an additive, a pigment, and an ink; fixing the applied coating composition on the filament to obtain a coated filament, the coated filament being comprised of a filament portion and a coating portion on a surface of the filament portion; conveying the coated filament to a printing head; melting the filament portion of the coated filament in the printing head to obtain a coated melted filament, the coated melted filament being comprised of a melted filament and a coating layer on a surface of the melted filament; and extruding a plurality of strands of the coated melted filament onto a substrate to form a three dimensional object, wherein