FILAMENT MATERIALS COMPRISING MARKING ADDITIVES FOR EXTRUSION-BASED ADDITIVE MANUFACTURING SYSTEMS

摘要

A filament material and a method for producing the same is disclosed. For example, the filament material includes a polymer resin that is compatible with an extrusion based printing process and a marking additive that allows selective portions of the filament material to change color when exposed to a light, wherein the marking additive is added to approximately 0.01 to 25.00 weight percent (wt %).