摘要:
An ultrafine fiber production device has a first heating unit, a nozzle unit, a hot air heating unit, a hot air blowing unit, a second heating unit, and a fiber collecting unit. The first heating unit melts a thermoplastic resin. The nozzle unit discharges the thermoplastic resin melted by the first heating unit. The hot air blowing unit performs fiber forming by blowing high-temperature gas produced by the hot air heating unit to the melted thermoplastic resin discharged by the nozzle unit and by extending the thermoplastic resin. The second heating unit further heats, extends, and fines produced fibers. The fiber collecting unit collects the thermoplastic resin in a fibrous form which is fined by the second heating unit.
摘要:
A plant for making continuous yarns (30) made of silicon material comprises at least an extrusion station (12), into which the material is introduced in an amorphous condition, and extrusion means (15) which cause the material to exit from the extrusion station (12) along an extrusion axis (D). The plant also comprises a vulcanization station (16), located downstream of the extrusion station (12), at a determinate distance (“L”) therefrom, in which the continuous yarn (30) is vulcanized in a direction of treatment (T). The plant also comprises a drawing unit (18), disposed downstream of the vulcanization station (16).
摘要:
The present invention provides a method for producing a non-woven fiber fabric by spinning a molten polymer. Thus, a non-woven fiber fabric which is substantially free from a solvent, different from the case of spinning a polymer solution, but yet has an extremely small fiber size (diameter of 0.5 µm or less) is provided. The non-woven fiber fabric comprises an olefin-based thermoplastic resin fiber, said fiber having an average fiber size of 0.01-0.5 µm, and said non-woven fiber fabric having an average pore size of 0.01-10.0 µm and being free from a solvent component.
摘要:
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von festen Zellulosefilamenten oder -folien aus einer Lösung von Zellulose, NMMO (N-Methyl-Morpholin-N-oxid) und Wasser, durch Extrudieren der Lösung durch eine oder mehrere Extrusionsöffnungen unter Druck und Verfestigen des Filamente oder Folien in einem Auffangbad, wobei die Lösung zwischen den Extrusionsöffnungen und dem Auffangbad durch einen Luftspalt geführt wird, wobei die Temperatur der Lösung an den Extrusionsöffnungen unter 105°C ist und der Druckunterschied zwischen dem Druck der Lösung unmittelbar vor der Extrusion und nach Extrusion im Luftspalt zwischen 8 und 40 bar ist.
标题翻译:VERFAHREN ZUR HERSTELLUNG VON HOCHORIENTIERTENPOLYOLEFINBÄNDERN,DARAUS HERGESTELLTE TEXTILE UND TECHNISCHEFLÄCHENGEBILDESOWIE DEREN VERWENDUNG INSCHUTZKÖRPERNZUM SCHUTZ GEGEN BALLISTISCHE PROJEKTILE U.Ä。
摘要:
The invention relates to a method for the production of high-strength ribbons having a high modulus of elasticity made of a highly molecular polyolefin, wherein the polyolefins, particularly polypropylene and polyethylene, are extruded through a slotted nozzle, are then subjected to a temperature of 85° to 135 °C for a duration of at least one second, the films are then cut into individual ribbons, if necessary, and stretched at temperatures between 90° to 165 °C in one or more steps, are rolled up or further processed directly into textiles or technical flexible sheet materials. The ribbons can be laminated into multi-layer flexible sheet materials by using adhesives or adhesion promoters, the flexible sheet materials being particularly suitable as protection from ballistic projectiles. In this case particularly in the form of plate-shaped or flexible compound bodies.
摘要:
A polyoxymethylene fiber which comprises a polyoxymethylene copolymer which exhibits a half crystallization time of 30 sec or more when it is cooled from the molten state at 200ringC to 150ringC at a cooling rate of 80ringC/min and then is held at 150ringC constantly. The polyoxymethylene fiber has a high strength and a high modulus of elasticity.
摘要:
Vorrichtung zur Herstellung einer Spinnvliesbahn aus aerodynamisch verstreckten Filamenten aus thermoplastischem Kunststoff, mit einem Spinnkopf mit einer Mehrzahl von Spinndüsenbohrungen, aus dem ein Vorhang aus thermoplastischen Filamenten austritt. Es ist eine Verstreckdüse mit zwei gegenüberliegenden düsenspaltbildenden Verstreckdüsenaggregaten vorgesehen. An zumindest einem Verstreckdüsenaggregat ist zumindest eine Temperiereinrichtung zur Temperierung des Verstreckdüsenaggregates angeschlossen.