摘要:
Ein mehrlagiges, abreinigbares Filtermaterial zur Gas- und Flüssigfiltration weist eine Filterlage und eine in Durch strömungsrichtung gesehene nachfolgende Trägerlage auf, wobei die Filterlage im Wesentlichen dendritenfrei ist und aus einem Meltblownvlies aus elastischen Polymerfasern besteht, das eine Bruchdehnung von mindestens 100% besitzt.
摘要:
Filtration media for filtering a liquid includes a plurality of fibers having a coating thereon of a fluorine containing compound. Also disclosed are processes for forming fibrous non-woven liquid filtration media having the coating of the fluorine containing compound. Suitable fluorine containing compounds generally include fluoropolymers, fluorinated hydrocarbons, fluoroacrylate polymers, and the like. The liquid filtration media having the coating of the fluorine containing compound provides markedly improved dirt holding capacity and efficiency properties, among others.
摘要:
Filtration media for filtering a liquid includes a plurality of fibers having a coating thereon of a fluorine containing compound. Also disclosed are processes for forming fibrous non-woven liquid filtration media having the coating of the fluorine containing compound. Suitable fluorine containing compounds generally include fluoropolymers, fluorinated hydrocarbons, fluoroacrylate polymers, and the like. The liquid filtration media having the coating of the fluorine containing compound provides markedly improved dirt holding capacity and efficiency properties, among others.
摘要:
Gegenstand der Erfindung ist ein funktionelles Schutzmaterial, insbesondere mit Schutzfunktion gegenüber chemischen und/oder biologischen Giften und/oder Schadstoffen, wie Kampfstoffen, wobei das funktionelle Schutzmaterial einen mehrschichtigen Aufbau umfaßt. Der mehrschichtige Aufbau weist ein flächiges, insbesondere textiles Trägermaterial und eine dem Trägermaterial zugeordnete, insbesondere mit dem Trägermaterial verbundene Membran auf. Die Membran ist mit einer reaktiven Ausrüstung, insbesondere mit einer katalytisch aktiven Komponente, vorzugsweise mit Reaktivität gegenüber chemischen und/oder biologischen Giften und/oder Schadstoffen, ausgestattet. Das Adsorptionsfiltermaterial eignet sich insbesondere zur Verwendung in ABC-Schutzgegenständen (z. B. ABC-Schutzbekleidung).
摘要:
An integrally formed multi-component structure is disclosed, the multi-component structure comprising a plurality of components, at least one of which is a three-dimensional bonded fiber fluid transmissive component comprised of a plurality of polymeric fibers bonded to each other at spaced apart contact points, the fibers collectively defining tortuous fluid flow paths, and wherein each component has an interface with at least one other component.
摘要:
Method for winding textile threads to filter bobbins for filtration purposes of petrochemicals, by, in a first operation, winding 4 layers laid at 30 degrees both ways, in a second operation winding 5 layers laid at 40 degrees both ways, in a third operation winding 9 layers laid at 35 degrees both ways, in a fourth and last operation winding 12 layers laid at 15 degrees one way and just with 50 degree transfer back for each layer, and repeating the first, second, third and fourth operations, the threads used thereby comprising 58 % cotton, 16 % acryl, 11,5 % flax, 11,5 % polyester, 2 % polyamide, 0,6 % acetate and 0,4 % viscose.
摘要:
Method for manufacturing a molded article, for use, for example as a fluid filter or as a preform for a structural composite, is prepared from a batt of nonwoven structural fibers and a binder material, such as binder fibers or a thermoresponsive resin. The batt is stabilized by exposing it to a temperature slightly below the melting point of the binder material, so that the binder material becomes tacky and bonds the fiber materials at the surface of the batt. By exposing the batt to the heat for only a few seconds, only the binder material at the surface of the batt bonds the structural fibers; the structural fibers within the batt remain unbonded. Accordingly, the batt is ''skinned'', so that it is stiff enough to be handled, but is still flexible enough that it can be molded into complex shapes. The molding is effected in a mold (104) in which heated air is drawn through the batt to force it to assume the contours (100) of the mold.
摘要:
The present invention relates to a filter medium comprising a substrate and a fine fiber layer on top of the substrate, wherein the substrate comprises a first layer comprising first fibers having a first average diameter and a first maximum fiber length; a second layer comprising second fibers having a second average diameter and a second maximum fiber length; and a third layer comprising third fibers having a third average diameter and a third maximum fiber length; wherein the boundary area between the first and the second layer forms a first blended area comprising first and second fibers; and the boundary area between the second and the third layer forms a second blended area comprising second and third fibers; and wherein the first and the third average diameters are each larger than the second average diameter.
摘要:
Nonwoven filter media with an alpha value greater than about 13 generally includes a plurality of large diameter fibers, a plurality of ultrafine diameter fibers, and a binder. The large diameter fibers have an average diameter of greater than about 6 microns and make up more than about 60% by weight of the fiber web. The ultrafine diameter fibers have an average diameter of less than about 1 micron. Also disclosed is a method of manufacturing a filter media.