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7364681 |
Spinning device and method having cooling by blowing
The present invention relates to an apparatus for producing continuously molded bodies from a molding material, such as a spinning solution containing cellulose, water and tertiary amine oxide. The...
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7351052 |
Apparatus for producing nanofiber utilizing electospinning and nozzle pack for the apparatus
The apparatus for producing a nanofiber includes a supply unit ( 110 ) for supplying melted polymer for fiber material, a spinning unit ( 122 ) having several radiation nozzles ( 122 ) to which...
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7322811 |
Apparatus for spinning and winding multifilament yarns
An apparatus for spinning and winding a plurality of synthetic filament yarns, and which includes a spinning device, a withdrawal godet downstream of the spinning device, and a takeup device which...
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7320581 |
Stabilized filament drawing device for a meltspinning apparatus
A stabilized filament drawing device for a meltspinning apparatus. The stabilized filament drawing device applies a high-velocity flow of air to attenuate the filaments, which are discharged from a...
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7316552 |
Low turbulence die assembly for meltblowing apparatus
An apparatus for forming meltblown material from a molten polymer includes a die configured with channels in the tip of the die through which molten polymer is extruded for forming meltblown...
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7300272 |
Fiber extrusion pack including split distribution plates
A fiber extrusion pack for extruding molten material to form an array of fibers includes a number of split distribution plates arranged in a stack such that each split distribution plate forms a...
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7241123 |
Apparatus for producing and winding synthetic multifilament yarns
An apparatus for producing and winding synthetic multifilament yarns, which has a spin unit 1 for melt spinning the yarns, at least one treatment unit 7 for treating the yarns, and a takeup...
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7210914 |
Series apparatus for forming layered fibrous mat of differing fibers and controlled surfaces
An arrangement for forming a web of fibrous media wherein at least one formed layered portion is attenuated from a first die source selectively unto a first collector and successively combining...
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7192550 |
Method and apparatus for spinning a web of mixed fibers, and products produced therefrom
A device and method for spinning polymer fibers utilizes one or more independent sources of polymer materials, pumps for feeding polymer material from each of the sources, and a series of...
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7172398 |
Stabilized filament drawing device for a meltspinning apparatus and meltspinning apparatus including such stabilized filament drawing devices
A stabilized filament drawing device for a meltspinning apparatus and a meltspinning apparatus including the stabilized filament drawing device. The stabilized filament drawing device applies a...
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7168932 |
Apparatus for nonwoven fibrous web
Disclosed is an apparatus for producing nonwoven fibrous webs. The apparatus comprises an extrusion die, first and second fluid supplies in cooperation with the die, first and second extrusion...
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7160091 |
Device for the production of multicomponent fibers or filaments, in particular bicomponent fibers or filaments
Device for the production of multicomponent fibers or of filaments, in particular bicomponent fibers, whereby a nozzle block assembly is provided. The assembly consists of a middle nozzle block and...
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7153115 |
Optical fiber cooling tube
An optical fiber cooling tube includes an internal cavity through which an optical fiber passes and a set of injection passages that are distributed along the tube, open into the cavity, and are...
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RE39399 |
Segmented die for applying hot melt adhesives or other polymer melts
A segmented die assembly comprises a plurality of side-by-side and separate units. Each die unit, includes a manifold segment and a die module mounted thereon. The manifold segments are...
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7090480 |
Method and apparatus for molding ceramic sheet
A method and an apparatus capable of extrusion molding a comparatively wide, thin ceramic sheet using a screw extruder while suppressing the wrinkling thereof. The molding apparatus includes a...
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7070403 |
Device for producing fibers from a thermoplastic synthetic resin
A nozzle for producing filaments or fibers of thermoplastic synthetic resin has at the nozzle end one or more bores, preferably opening at a flat surface and receiving respective inserts or shaped...
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7037097 |
Methods and apparatus for controlling airflow in a fiber extrusion system
An apparatus for controlling airflow in a fiber extrusion process includes a fiber flow region between an inlet through which extruded fibers are received and an outlet through which the extruded...
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7033154 |
Lamellar extrusion die apparatus and method
A lamellar die apparatus for extruding a heated liquid into single or multiple component filaments. The apparatus includes a plurality of plates each having opposite side faces. At least two of the...
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7033153 |
Lamellar meltblowing die apparatus and method
A lamellar die apparatus for extruding a heated liquid into filaments and directing air at the filaments. The apparatus includes a plurality of plates each having opposite side faces. At least two...
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7018188 |
Apparatus for forming fibers
The present invention is directed to an apparatus for forming fibers. One embodiment of the apparatus includes a die assembly having a plurality of nozzles, one or more attenuation medium passages...
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7014441 |
Fiber draw unit nozzles for use in polymer fiber production
A nozzle is described for downwardly directing air from an air intake of a fiber draw unit into a longitudinal channel of the fiber draw unit for forming spunbond polymeric fibers. The nozzle...
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7008205 |
Installation for producing a spunbonded fabric web whereof the diffuser is distant from the drawing slot device
The invention concerns an installation for producing a spunbonded fabric web comprising a diffuser defining for the filaments a passage with diverging cross-section, and mounted a certain distance...
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7004738 |
Apparatus for producing melt-blown webs
An apparatus for producing a melt blown web in which the collecting screen upon which the filaments are deposited passes over a plurality of suction regions or areas which have respective suction...
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6974316 |
Installation for producing a nonwoven web with very uniform weight
The invention concerns an installation for producing a nonwoven web wherein the distance between the lower edge of the slit drawing device and the upper edge of the diffuser is maintained constant...
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6969484 |
Manufacturing method and device for electret processed product
A manufacturing method of an electret processed product, comprising the steps of allowing a section nozzle ( 22 ) to come into contact with a nonconductive fiber sheet (S) so as to cross in the...
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6966762 |
Device for opening and distributing a bundle of filaments when producing a nonwoven textile web
The invention concerns a device for opening and distributing a bundle of filaments when producing a nonwoven textile web by a technique which consists in: extruding melted organic polymer through a...
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6932590 |
Apparatus for the continuous production of spun-bond web
An apparatus for producing spun-bond webs has, beneath the receiving belt, a suction unit having at least two suction zones including a primary suction zone and at least one other suction zone, the...
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6926508 |
Steam distribution ring for spinning machines
A spinneret steam blanketing system for blanketing the face of a spinneret with gas. The system includes a steam distribution ring surrounding a filament array, where the steam distribution ring...
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6918751 |
Device for melt spinning and cooling a filament bundle
The invention relates to a device and method for melt spinning and cooling a filament bundle. To this end, the device comprises a spinning device with an annular spinneret for extruding the...
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6918750 |
Arrangement for the continuous production of a filament nonwoven fibrous web
A spun-bond web-making apparatus has the cooling passage below the spinneret provided with a plurality of air chamber sections which are supplied with air at different temperatures, the cooling...
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6908292 |
Apparatus for producing a nonwoven web
In the production of a spunbond web by aerodynamically stretching thermoplastic filaments from a spinneret, the stretching nozzle is formed by two nozzle-forming units each of which has a...
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6902384 |
Apparatus for melt spinning and cooling a group of filaments
An apparatus for melt spinning and cooling a group of filaments comprising a spinning device with an annular spinneret and a cooling device arranged below the spinning device. The cooling device...
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6893243 |
Device for melt spinning and cooling a filament bundle
A device for melt extrusion spinning and cooling of a filament bundle comprises a spinning device with an annular spinning jet for extruding the filament bundle as well as a cooling device arranged...
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6890167 |
Meltblowing apparatus
A meltblowing apparatus for dispensing an adhesive through a plurality of first orifices of a die assembly fabricated from a plurality of laminated members to form a plurality of adhesive flows at...
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6884053 |
Apparatus for producing a multifilament yarn from a thermoplastic polymer
An apparatus for producing a multifilament yarn from a thermoplastic polymer includes a yarn guiding element being movable in a vertical direction. A drive serves to change the vertical position of...
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6881047 |
Process and apparatus for improved conditioning of melt-spun material
An apparatus and process for applying finish to an expanded filament array in a quench system with air directed inward to the filament bundle. The applicator may be used inside or proximate quench...
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6877971 |
Apparatus for producing a transversely aligned web in which filaments spun at high rate are aligned in the transverse direction
The present invention relates to an apparatus for producing a transversely aligned web having filaments aligned in the transverse direction, comprising conveyor running in one direction, spinning...
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6877970 |
Apparatus for making web comprising continuous fibers
An apparatus for producing a web of continuous fibers having a melt extruder, an endless belt running in one direction and a guide box located between the extruder and the belt. The guide box has...
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6872339 |
Apparatus and method for the melt spinning and depositing of a plurality of tows
A device and a method for the melt spinning and depositing of a plurality of tows ( 5.1, 5.2, . . . , 5. n ) utilizes several spinning devices ( 1.1, 1.2, . . . , 1. n ) by means of which one of...
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6861025 |
Attenuating fluid manifold for meltblowing die
Melt blown nonwoven webs are formed by supplying attenuating fluid to a meltblowing die through an attenuating fluid distribution passage whose distribution characteristics can be changed while the...
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6832904 |
Apparatus for cooling and finishing melt-spun filaments
A hollow quench stick tube capable of cooling and finishing melt-spun filaments comprises in one embodiment a hollow cooling tube connected to a hollow support tube, a finish applicator that...
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6824733 |
Meltblowing apparatus employing planetary gear metering pump
Melt blown nonwoven webs are formed by supplying fiber-forming material to a planetary gear metering pump having a plurality of outlets, flowing fiber-forming material from the pump outlets through...
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6824372 |
Fiber-forming apparatus
A new fiber-forming method, and apparatus useful for performing the method, are taught in which extruded filaments of fiber-forming material are directed through a processing chamber that is...
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6814555 |
Apparatus and method for extruding single-component liquid strands into multi-component filaments
A melt spinning apparatus includes fiber producing features to produce multi-component filaments by extruding two or more single-component strands that combine after extrusion and are then...
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6799957 |
Forming system for the manufacture of thermoplastic nonwoven webs and laminates
A system and methods for collecting and managing air discharged from a melt spinning apparatus. The air management system includes an outer housing defining a first interior space, an intake...
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6790392 |
Application of a vaporous mist for spining systems with rectangular nozzles
A method and apparatus for the steam misting of rectangular nozzles and spinning systems equipped therewith for producing polyamide filaments whereby the steam feed is conducted through a tube loop...
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6783722 |
Apparatus and method for producing a nonwoven web of filaments
Spunbond nonwoven fabrics are produced with an apparatus which comprises a spinnerette having a plurality of orifices for extruding filaments; an attenuator for receiving and attenuating the...
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6749413 |
Melt-blowing head for making polymeric material fibrils
A melt-blowing head for making polymeric material fibrils comprises at least a polymeric material inlet channel and melt-blowing die including a plurality of holes for extending fibrils therefrom...
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6737009 |
Process and system for producing multicomponent spunbonded nonwoven fabrics
A system and process for producing spunbond nonwoven fabric in which two or more polymeric components are separately melted and are separately directed through a distribution plate configured so...
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6736624 |
Spinning device for spinning molten polymers and method for heating the spinning device
The invention relates to a spinning device in which liquid polymer is guided through a polymer line with a first heating jacket to a spinning pump with a second heating jacket. From said spinning...
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