Patent ID: 7980838
Filing Date: 2011-07-19
Classification: B82Y,D01D

Abstract:
1. A bottom-up electrospinning apparatus for the mass-production of nanofibers comprising: at least one nozzle block having a plurality of spinning nozzles arranged in the horizontal and vertical direction; a collector installed over the nozzle blocks in order to correspond to the nozzle blocks and maintain a certain spinning distance in between; a power source to apply voltage difference between the nozzle block and the collector; and a spinning solution container to supply the spinning solution to the nozzle block; wherein the nozzle block and the collector are connected to the positive terminal and the negative terminal of the power source, respectively such that they have different polarity, and among a plurality of spinning nozzles arranged along a horizontal line, a spinning nozzle in the middle and a spinning nozzle in the end have different height; wherein the plurality of spinning nozzles are arranged according to a filling structure having a repeating unit structure along a process direction relative to the nozzle block; and wherein the filling structure comprises an arrangement of the plurality of spinning nozzles such that spinning nozzles in adjacent horizontal lines are offset, with each spinning nozzle in one horizontal line being disposed between two spinning nozzles of an adjacent horizontal line in the process direction.