METHOD FOR PRODUCING BIODEGRADABLE COMPOSITE FERTILIZER FILAMENT FOR 3D PRINTER, AND BIODEGRADABLE COMPOSITE FERTILIZER FILAMENT PRODUCED THROUGH SAME

摘要

The present invention relates to a method for producing a biodegradable composite fertilizer filament for a 3D printer, and to a biodegradable composite fertilizer filament produced through the same. The method comprises the following steps: (S1) mixing a biodegradable resin, a composite fertilizer, and an inorganic material; (S2) extruding a mixture obtained through (S1) through a twin-screw extruder to make the mixture into pellets; and (S3) producing a biodegradable composite fertilizer filament for a 3D printer by extruding the pellets obtained through (S2) by using a filament producing extruder. A biodegradable composite fertilizer filament for a 3D printer, which is produced through the method according to the present invention, includes a biodegradable resin slowly decomposed into water and carbon dioxide in nature and a generally used composite fertilizer as main ingredients, so the biodegradable composite fertilizer filament can be more environmentally-friendly applied to the nature and a human. In particular, the biodegradable composite fertilizer filament for a 3D printer is unique because being differentiated from a general thermoplastic filament. Accordingly, when the biodegradable composite fertilizer filament for a 3D printer is applied to the urban agriculture and the floricultural industry, so a continuous effect can be ensured even through a small quantity of a composite fertilizer compared to a conventional time in which an excessive quantity of a composite fertilizer is consumed. Also, a conventional labor loss occurring due to continuous the supply of a composite fertilizer can be minimized.;COPYRIGHT KIPO 2016