An advancement member of a fibre material for a carbonization line for the production of carbon fibres includes a support structure extending between two end sections along a direction of advance of the fibre material, a plurality of feed rollers for the fibre material, each rotatably associated to the support structure by a pair of support elements, wherein the support elements of an inlet roller and/or an outlet roller includes a base integral with said support structure, a support ring coupled with the base and having at least a through opening for receiving one end of the respective feed roller and adjusting means operatively interposed between the base and the ring and configured to move the position of the ring relative to the base along a preferably substantially vertical adjustment direction.

A method for continuously producing a cleaning member obtained from a multilayer web that includes at least a fiber bundle with hollow fibers, and non-woven fabric strips includes at least: a step for preparing a guide member provided with a pair of width-adjusting member, and having a predetermined interval; a step for conveying a fiber bundle strip, such as the fiber bundle with hollow fibers, between the pair of width-adjusting members of the guide member, and adjusting the width of the fiber bundle strip so as to match the aforementioned interval; a step for forming the multilayer web by overlaying the strip-like fiber bundle, the width of which has been adjusted, on the non-woven fabric strips; and a step for joining the components of the multilayer web.

The present invention relates to an extrusion head for generating filaments, extrusion installation and method using said extrusion head, the extrusion head comprising an inlet for the introduction by pressure of a solvent and polymer solution, and an extrusion plate provided with extrusion nozzles configured for forming filaments from the solvent and polymer solution, where the inlet is in fluid communication with a laminar chamber through which the solvent and polymer solution circulates to a peripheral chamber from which it is radially distributed into a central chamber in which the extrusion plate is arranged, and where the laminar chamber is in fluid communication with an excess solvent outlet, and the central chamber is in fluid communication with an excess solution outlet.

In a spinning-drawing-winding device and a combined machine for industrial bio-based polyamide, according to a traveling direction of a tow, two adjacent rotational directions among a rotational direction of the tow winding through the first pair of drawing hot rollers, a rotational direction of the tow winding through the second pair of drawing hot rollers, a rotational direction of the tow winding through the third pair of drawing hot rollers, a rotational direction of the tow winding through the fourth pair of drawing hot rollers are in opposite to spin an industrial bio-based polyamide filament of 55 dtex-2222 dtex.

A method for continuously producing a cleaning member obtained from a multilayer web that includes at least a fiber bundle with hollow fibers, and non-woven fabric strips includes at least: a step for preparing a guide member provided with a pair of width-adjusting member, and having a predetermined interval; a step for conveying a fiber bundle strip, such as the fiber bundle with hollow fibers, between the pair of width-adjusting members of the guide member, and adjusting the width of the fiber bundle strip so as to match the aforementioned interval; a step for forming the multilayer web by overlaying the strip-like fiber bundle, the width of which has been adjusted, on the non-woven fabric strips; and a step for joining the components of the multilayer web.

A method and apparatus for manufacturing a carbon fiber. Pressure is applied to a filament to change a cross-sectional shape of the filament and create a plurality of distinct surfaces on the filament. The filament is converted into a graphitic carbon fiber having the plurality of distinct surfaces. A plurality of sizings is applied to the plurality of distinct surfaces of the graphitic carbon fiber in which the plurality of sizings includes at least two different sizings.

A method of continuously producing a cleaning member obtained from a multilayer web that includes at least a fiber bundle and a non-woven fabric, includes the following steps: preparing a guide member provided with a pair of width-adjusting members having a predetermined interval therebetween; conveying a fiber bundle through the pair of width-adjusting members of the guide member to adjust the width of the fiber bundle strip so as to match the aforementioned interval; forming the multilayer web by overlaying the fiber bundle, the width of which has been adjusted, on the non-woven fabric; and joining the fiber bundle and non-woven fabric.

An advancement member of a fibre material for a carbonization line for the production of carbon fibres includes a support structure extending between two end sections along a direction of advance of the fibre material, a plurality of feed rollers for the fibre material, each rotatably associated to the support structure by a pair of support elements, wherein the support elements of an inlet roller and/or an outlet roller includes a base integral with said support structure, a support ring coupled with the base and having at least a through opening for receiving one end of the respective feed roller and adjusting means operatively interposed between the base and the ring and configured to move the position of the ring relative to the base along a preferably substantially vertical adjustment direction.

A roller guides and processes synthetic strand material. The roller includes a drivable roller shell. The roller shell has, on a projecting free end thereof, a cover which is effective relative to the surroundings. In order to secure the end of the roller shell relative to an operating side, the cover is freely rotatably connected to the roller shell.

A system and method for providing a plurality of fibers from a spinneret; subjecting the fibers to quench air; attenuating the fibers through a closed stretching unit; reducing a velocity of the plurality of fibers in a diffuser that is spaced apart from an exit of the closed stretching unit in a direction of travel of the fibers, the diffuser having opposed diverging sidewalls; and subjecting the fibers to an applied electrostatic charge before the fibers enter the diffuser, wherein the electrostatic charge is applied by one or more electrostatic charging units.