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

摘要

A filament material and a method of making the same are disclosed. For example, the filamentary material includes a polymeric resin compatible with an extrusion-based printing process, and a marking additive that causes an optional portion of the filamentary material to change color when exposed to light, the marking additive being approximately 0.01 to 25.00 added in weight percent (wt%).