Patent ID: 11371167

Abstract:
Device for the production of nanofibrous and/or microfibrous layers having an increased thickness uniformity by spinning a liquid material (3), said device comprising: a collecting electrode (6), a spinning nozzle (1) for dispensing the liquid material (3) to be spun, an assembly for guiding the collecting electrode (6) and/or for guiding a base strip (5) along the collecting electrode (6) or adjacent to it, such that—in the area faced by the outlet orifice (10) of the spinning nozzle (1)—the collecting electrode (6) and/or the base strip (5) move(s) in the direction (MD) spaced from the outlet orifice (10) of the spinning nozzle (1), a power supply for generating a voltage of 10 to 150 kV between the collecting electrode (6) and the spinning nozzle (1), at least one body (2), which moves along the liquid surface to destabilize the locations of the points where fibres (4) are formed on the surface of the liquid material (3) at the outlet orifice (10) of the spinning nozzle (1). The nanofibrous and/or microfibrous layers having an increased thickness uniformity are produced by spinning a liquid material (3) in an electrostatic field, wherein a body (2) is moved along the surface of the spun liquid in order to destabilize positions of locations, where the fibers originate.