A pack for spinning is provided with a kneading part disposed on a spinneret. The kneading part includes: an introduction plate including a plurality of first introduction holes for introducing a melted polymer; and a plurality of kneading units including a supply plate including a plurality of independent supply grooves into which the polymer introduced from the introduction holes flows and one or more supply holes disposed in each of the supply grooves, and a converging plate including a plurality of converging grooves in which a plurality of grooves into which the polymer supplied from the supply holes flows are intersected and a plurality of second introduction holes disposed in each of the converging grooves.

A device is provided for making polymer fibre for a system of the spunbond and/or melt-blown type, including a distributor including at least one distribution pipe adapted to distribute the polymer fluid, filter arranged upstream of the distribution pipe so as to filter the polymer fluid, wherein the filter include a porous element defining a plurality of non-rectilinear through channels.

An object of the present invention is to provide an apparatus for producing nanofibers and a nozzle head use for the same which can be manufactured by drilling and is capable of efficiently carrying molten resin on a gas flow.

A nozzle head 20 of an apparatus for producing nanofibers 1 comprises a raw material discharge surface 22 on which a raw material flow passage 25 for discharging a liquid raw material is arranged, and a gas discharge surface 23 which is arranged with an angle (0<90) toward the raw material discharge surface 22 and on which a gas flow passage 26 for ejecting gas is arranged. The raw material flow passage 25 is orthogonal to the raw material discharge surface 22, the gas flow passage 26 is orthogonal to the gas discharge surface 23, and the raw material flow passage 25 and the gas flow passage 26 are arranged so that the liquid raw material discharged from the raw material flow passage 25 meets gas ejected from the gas flow passage 26.

An object of the present invention is to provide an apparatus for producing nanofibers and a nozzle head use for the same which can be manufactured by drilling and is capable of efficiently carrying molten resin on a gas flow.

A nozzle head 20 of an apparatus for producing nanofibers 1 comprises a raw material discharge surface 22 on which a raw material flow passage 25 for discharging a liquid raw material is arranged, and a gas discharge surface 23 which is arranged with an angle (0<90) toward the raw material discharge surface 22 and on which a gas flow passage 26 for ejecting gas is arranged. The raw material flow passage 25 is orthogonal to the raw material discharge surface 22, the gas flow passage 26 is orthogonal to the gas discharge surface 23, and the raw material flow passage 25 and the gas flow passage 26 are arranged so that the liquid raw material discharged from the raw material flow passage 25 meets gas ejected from the gas flow passage 26.

A spinneret (1) for electrostatic spinning is configured from a structure of an electrically conductive metal material. The structure is provided with a long-axis direction (X), a short-axis direction (Z), and a thickness direction (Y). An inflow port (10) for a spinning starting material fluid is provided to one surface of the structure. A plurality of protrusions (5) are formed on another surface of the structure so as to be aligned along the long-axis direction (X). Each of the plurality of protrusion (5) extends so as to protrude from the structure. The protrusions (5) have, provided to apexes (2) thereof, discharge holes (4) for discharging the starting material fluid. The pitch of the discharge holes (4) exceeds 1 mm.

A spinning beam for producing melt-spun filaments, in which liquid plastics material is conveyed via an externally arranged extruder to at least one pump, which conveys the liquid plastics material to at least one spin pack having a spinneret, at least the pump and the spin pack being heated by a heat transfer medium which is heated in a boiler. The pump, the boiler and an opening for receiving a spin pack are arranged in a modular assembly, which can be installed and fixed singly, or in a plurality one behind the other, in a frame of the spinning beam.

A spinning beam for producing melt-spun filaments, in which liquid plastics material is conveyed via an externally arranged extruder to at least one pump, which conveys the liquid plastics material to at least one spin pack having a spinneret, at least the pump and the spin pack being heated by a heat transfer medium which is heated in a boiler. The pump, the boiler and an opening for receiving a spin pack are arranged in a modular assembly, which can be installed and fixed singly, or in a plurality one behind the other, in a frame of the spinning beam.

The invention relates to a spinning nozzle (10) for the extrusion of a hollow fiber from one or more spinning masses and an apparatus comprising a spinning nozzle (10) as well as method for extruding a hollow fiber by means of a spinning nozzle (10), wherein the spinning nozzle (10) has an inlet port (12, 13, 14) for each spinning mass to be extruded for introducing the spinning mass into the spinning nozzle (14), an outlet port for the exit of spinning mass along an outlet axis (A), and at least one spinning mass flow channel for guiding at least one spinning mass to be extruded from the inlet port (12, 13, 14) to the outlet port, wherein at least one spinning mass flow channel comprises a flow manipulation section having an inlet and an outlet, which comprises a flow-guiding structure (18, 19, 20) for influencing a spinning mass flowing through the spinning mass flow channel, wherein the flow-guiding structure (18, 19, 20) is thereby designed to influence spinning mass flow such that the spinning mass flowing through the spinning mass flow channel at least partially flows through said spinning mass flow channel along at least two different flow paths, wherein the flow paths running through the spinning mass flow channel exhibit a substantially identical path length between the inlet of the flow manipulation section and the outlet port of the spinning mass flow channel.

The invention relates to a spinning nozzle (10) for the extrusion of a hollow fiber from one or more spinning masses and an apparatus comprising a spinning nozzle (10) as well as method for extruding a hollow fiber by means of a spinning nozzle (10), wherein the spinning nozzle (10) has an inlet port (12, 13, 14) for each spinning mass to be extruded for introducing the spinning mass into the spinning nozzle (14), an outlet port for the exit of spinning mass along an outlet axis (A), and at least one spinning mass flow channel for guiding at least one spinning mass to be extruded from the inlet port (12, 13, 14) to the outlet port, wherein at least one spinning mass flow channel comprises a flow manipulation section having an inlet and an outlet, which comprises a flow-guiding structure (18, 19, 20) for influencing a spinning mass flowing through the spinning mass flow channel, wherein the flow-guiding structure (18, 19, 20) is thereby designed to influence spinning mass flow such that the spinning mass flowing through the spinning mass flow channel at least partially flows through said spinning mass flow channel along at least two different flow paths, wherein the flow paths running through the spinning mass flow channel exhibit a substantially identical path length between the inlet of the flow manipulation section and the outlet port of the spinning mass flow channel.

A melt blowing die includes a stack of plates including corresponding melt blowing die tip, die body and air functionalities. One or more rows of polymer filament extrusion orifices extend through in a stack direction across multiple plates of a stack. A gas distribution system within the stack has gas outlets are positioned to provide distributed gas flow to contact and attenuate extruded polymer filaments. One of more polymer distribution channels extend longitudinally through multiple plates in the stack direction to supply polymer to each of the rows of extrusion orifices. A polymer distribution channel is open to receive polymer feed only at a longitudinal end. A melt blowing apparatus has a collection substrate movable in a machine direction that is transverse to a stack direction in a melt blowing die. A method for producing fiber-containing material includes melt blowing using a melt blowing die with a stack of plates.