A manufacturing method and an apparatus enable high productivity. A method for manufacturing an oxidized fiber bundle includes joining an upstream precursor fiber bundle and a downstream precursor fiber bundle together with a joining fiber bundle, and oxidizing the joined precursor fiber bundles by feeding the joined precursor fiber bundles through an oxidization furnace. The joining includes applying an oiling agent to a joint area of a joining target precursor fiber bundle before joining the joining target precursor fiber bundle and the joining fiber bundle together. A quantity of the oiling agent adhering to the joint area is 0.15 to 0.85 wt %.

A coagulation bath system for fiber spinning, the system comprising a coagulation bath con figured to have coagulation liquid consisting of at least partly of water, and forming a water flow, which coagulation liquid is arranged to receive fibers, the water flow drives the movement of fibers through the coagulation bath.

Disclosed is a system and a method for electrospinning superfine fiber bundling, belonging to the technical field of artificial fiber manufacturing, and comprises a spinning nozzle and a bundling disk which are coaxially arranged; the spinning nozzle is arranged at an upper part of the bundling disk; the bundling disk is connected with a motor through a coupling; the motor rotates to drive the bundling disk to rotate; a guide groove is also arranged outside the bundling disk; a center of the bundling disk is provided with a shaft; the insulated outer ring, the central conductive ring, the insulated inner ring and the shaft are fixed by bonding or thermal compounding; inner and outer edges of the central conductive ring are smooth circular arc rounded corners; an inner edge of the insulated outer ring and an outer edge of the insulated inner ring are corresponding smooth rounded corners.

Implantable scaffolds made from biopolymer fibers. Biopolymer is dissolved in acid in a closed container made of materials inert to the acid and to the collagen to form a biopolymer solution. The solution is stirred, then centrifuged to degas it. The degassed solution is put into syringes on a holder. The number of syringes equals the number of fibers in the bundle. The syringes are mounted in a rotatable holder. Essentially equal quantities of degassed solution are extruded from the syringes to produce fibers, which are gathered and fed into a formation buffer bath. The fibers are kept taught after extrusion and dehydrated in a dehydrating solution in a dehydrating bath. The fibers are wound a collector to collect the bundle. Scaffolds then are made.

Implantable scaffolds made from biopolymer fibers. Biopolymer is dissolved in acid in a closed container made of materials inert to the acid and to the collagen to form a biopolymer solution. The solution is stirred, then centrifuged to degas it. The degassed solution is put into syringes on a holder. The number of syringes equals the number of fibers in the bundle. The syringes are mounted in a rotatable holder. Essentially equal quantities of degassed solution are extruded from the syringes to produce fibers, which are gathered and fed into a formation buffer bath. The fibers are kept taught after extrusion and dehydrated in a dehydrating solution in a dehydrating bath. The fibers are wound a collector to collect the bundle. Scaffolds then are made.

The invention shows a spin-up device (11, 51) and a method for spinning up a spinning device (1, 101) for the continuous extrusion of molded bodies (3) from a spinning solution (6), containing a solvent and cellulose dissolved in the solvent, wherein the molded bodies are extruded from the spinning solution (6) through spinnerets (7) of the spinning device (1, 101) in the form of a loose spinning curtain (2), the molded bodies (3) of the loose spinning curtain (2) are combined into a molded body bundle (4) after the extrusion, and the molded body bundle (4) is, in a further step, fed to a draw-off member (10) of the spinning device (1, 101) in order to start a continuous extrusion of the molded bodies (3). In order to make the spin-up method simpler in terms of process technology and more reproducible, it is proposed to increase the tensile strength of at least some areas of the molded bodies (3) of the loose spinning curtain (2) after their extrusion and before combining them into a molded body bundle (4).

The invention shows a spin-up device (11, 51) and a method for spinning up a spinning device (1, 101) for the continuous extrusion of molded bodies (3) from a spinning solution (6), containing a solvent and cellulose dissolved in the solvent, wherein the molded bodies are extruded from the spinning solution (6) through spinnerets (7) of the spinning device (1, 101) in the form of a loose spinning curtain (2), the molded bodies (3) of the loose spinning curtain (2) are combined into a molded body bundle (4) after the extrusion, and the molded body bundle (4) is, in a further step, fed to a draw-off member (10) of the spinning device (1, 101) in order to start a continuous extrusion of the molded bodies (3). In order to make the spin-up method simpler in terms of process technology and more reproducible, it is proposed to increase the tensile strength of at least some areas of the molded bodies (3) of the loose spinning curtain (2) after their extrusion and before combining them into a molded body bundle (4).

A process for producing a polymer strand involves: inserting a nucleation element into a pre-strand composition, the pre-strand composition comprising a polymer mixed with a solvent, the polymer having a concentration in the pre-strand composition that is greater than or equal to an overlap concentration (c*) of the polymer in the pre-strand composition; and, withdrawing the nucleation element from the pre-strand composition so that a strand comprising the polymer is pulled by the nucleation element from the pre-strand composition, the nucleation element being withdrawn at a rate such that a pull time (τ.sub.pull) of the nucleation element is less than reptation time (τ.sub.rep) required to relax polymer entanglements in the pre-strand composition, thereby inducing a viscoelastic response in the pre-strand composition as the strand is pulled by the nucleation element from the pre-strand composition.

Disclosed is a system and a method for electrospinning superfine fiber bundling, belonging to the technical field of artificial fiber manufacturing, and comprises a spinning nozzle and a bundling disk which are coaxially arranged; the spinning nozzle is arranged at an upper part of the bundling disk; the bundling disk is connected with a motor through a coupling; the motor rotates to drive the bundling disk to rotate; a guide groove is also arranged outside the bundling disk; a center of the bundling disk is provided with a shaft; the insulated outer ring, the central conductive ring, the insulated inner ring and the shaft are fixed by bonding or thermal compounding; inner and outer edges of the central conductive ring are smooth circular arc rounded corners; an inner edge of the insulated outer ring and an outer edge of the insulated inner ring are corresponding smooth rounded corners.

What is shown is a spinning device (1) and a method for spinning up a spinning device (1) for the continuous extrusion of molded bodies (3) from a spinning solution (6), as well as a spin-up device (11) for the execution of the method, in which method the molded bodies (3) are extruded from the spinning solution (6) through spinnerets (7) of the spinning device (1) in the form of a loose spinning curtain (2), the molded bodies (3) of the loose spinning curtain (2) are, after the extrusion, combined into a molded body bundle (4), and the molded body bundle (4) is, in a further step, fed to a draw-off member (10) of the spinning device (1) in order to start a continuous extrusion of the molded bodies (3). In order to make the method for spinning up the spinning device (1) simpler and more reproducible, it is proposed that the molded bodies (3) be combined into the molded body bundle (4) by twisting the spinning curtain (2) around a torsion axis (20).