Device for hydrodynamic supply of the fluid to fibers of a fiber web
February 14, 2021. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2730933 Method for compacting a nonwoven fabric impregnated with a thermoplastic binder Method and apparatus for shrinking a travelling web of fibrous material Transfer device for compression and introduction device for tufting machine Apparatus for finishing a fabric web Method and device for hydrodynamic entanglement of the fibers of a fiber web Device for hydrodynamic entanglement of the fibers of a fiber web Device for hydrodynamic needling of fleeces, tissues, or the like Wet process for manufacturing nonwoven fabric and apparatus therefor Patent #: 6058583 InventorAssigneeApplicationNo. 781999 filed on 02/14/2001US Classes:28/104, By fluid jet needling or perforating26/18.6, Thread compacting28/105, Through backing and support members28/167By fluid contactExaminersPrimary: Vanatta, Amy B.Attorney, Agent or FirmInternational ClassD04H 001/48Foreign Application Priority Data2000-02-15 DEAbstractA device is known in which the bulky nonwoven arriving on a continuous belt for water needling is slowly compressed between a needling drum and another belt and at the same time is wetted by a first water curtain from the nozzle bank; its water jets first flow through the continuous belt and then the fiber web and ultimately the needling drum. There is a simpler and thus more economically producible device of this type when instead of the needling drum this compacting unit consists only of two continuous belts which however should be guided such that at the inlet the two working sides of the continuous belts slowly compact and press the incoming nonwoven, and then the belts lying on one another are moved past the nozzle bank as they are held pressed. Additional deflection rollers are used for this purpose.Field of SearchSHRINKINGThread compacting By fluid jet needling or perforating Through backing and support members Fiber entangling and interlocking Compressive manipulation With treatment By multiroller manipulation With plural multiroller stations Having plural superimposed beds With compound roller motion Treating By fluid contact | |
