Means Forming Running Length Product Patents (Class 425/83.1)
  • Patent number: 11214922
    Abstract: A fibrous material accumulating apparatus includes a dispersing section which disperses a material containing fibers, a belt which accumulates the dispersed material, and a suction section provided on a side of the belt opposite to the dispersing section, in which the dispersing section includes a storage section including a screen, a supply section which supplies the material to the storage section, and a rotating body which is provided inside the storage section and agitates the material supplied into the storage section, and the storage section includes a communicating port which causes an inside and an outside of the storage section to communicate with each other and is provided at a different position from the screen.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: January 4, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Naotaka Higuchi
  • Patent number: 10787303
    Abstract: Packaging insulation for insertion into a packaging container, which includes an air laid natural fibrous batt comprised primarily of natural fibers, having foldable paper sheet material adhered to both sides of the batt. The resulting method and product provides packaging insulation which can be shipped flat and compressed, which expands when unpacked and which can be readily folded to match the interior configuration of a shipping container, such as a cardboard box.
    Type: Grant
    Filed: May 29, 2016
    Date of Patent: September 29, 2020
    Assignee: Cellulose Material Solutions, LLC
    Inventors: Kevin Chase, Brandon Fenske, Christopher Benner, Matthew Henderson
  • Patent number: 9187606
    Abstract: The invention relates to a prepreg comprising a structural layer of conductive fibers comprising thermosetting resin in the interstices, and a first outer layer of resin comprising thermosetting resin, and comprising a population of conductive free filaments located at the interface between the structural layer and the outer resin layer which, when cured under elevated temperature, produces a cured composite material comprising a cured structural layer of packed conductive fibers and a first outer layer of cured resin, the outer layer of cured resin, comprising a proportion of the population of conductive free filaments dispersed therein, and to a process for manufacturing prepregs wherein the electrically conductive fibers pass a fiber disrupting means to cause a proportion of the fibers on an external face of the sheet to become free filaments.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: November 17, 2015
    Assignee: Hexcel Composites Limited
    Inventors: Emilie Fisset, John Ellis
  • Patent number: 8960122
    Abstract: An apparatus for manufacturing an absorbent body, including a recessed form die formed on a predetermined face of a predetermined member, moving in one direction along a moving path along the predetermined face; a duct disposed in a predetermined position in the moving path, discharging a gas including fluid absorbent fibers from an opening section toward the predetermined face; and a polymer casting member disposed inside the duct, casting a superabsorbent polymer from a casting opening toward a center area of the opening section in a direction along the moving path, wherein in the case of the form die passing the duct position, by the gas being sucked through air intake holes in a bottom section of the form die, the fluid absorbent fibers and the superabsorbent polymer in the gas are stacked in the form die to form an absorbent body, wherein an air pressure inside the duct is made lower than the air pressure outside the duct because of the gas being sucked through the bottom section of the form die, wherein
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: February 24, 2015
    Assignee: Uni-Charm Corporation
    Inventors: Takanori Yano, Makoto Suzuki
  • Publication number: 20150021805
    Abstract: Methods and apparatus including a fiber opening chamber having an open upper end and a lower end, at least one fiber inlet for introducing a multiplicity of fibers into the opening chamber, a first multiplicity of rollers positioned within the opening chamber wherein each roller has a multiplicity of projections extending outwardly from a circumferential surface surrounding a center axis of rotation, at least one gas emission nozzle positioned substantially below the first multiplicity of rollers to direct a gas stream generally towards the open upper end of the opening chamber, and a forming chamber having an upper end and a lower end, wherein the upper end of the forming chamber is in flow communication with the open upper end of the opening chamber, and the lower end of the forming chamber is substantially open and positioned above a collector having a collector surface.
    Type: Application
    Filed: December 21, 2012
    Publication date: January 22, 2015
    Inventors: John W. Henderson, Tien T. Wu, Gustavo H. Castro, Gerry A. Hoffdahl, David L. Vall
  • Patent number: 8827672
    Abstract: The present invention relates to an electrospinning device for fabricating a membrane, in particular, to an electrospinning device for fabricating membrane by using spinnerets aligned in machine direction (MD) and transverse direction (TD) in a high-voltage DC electric field, and to method for using the same. In addition to producing a single-layer nanofiber membrane from a polymer composite, the electrospinning device according to the present invention can also conveniently produce a multilayer composite nanofiber membrane from more than one polymer composites. The electrospinning device comprises a control section, an electrospinning section and an ancillary section. The electrospinning section comprises a MD spinnerets set and a TD spinnerets set that are alternately arranged and moves above a membrane collecting device in a to-and-fro scanning manner so as to improve the evenness and strength of the obtained membrane.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: September 9, 2014
    Assignee: SKPB Membrane-Tech (Beijing) Corporation
    Inventors: Dayong Wu, Haiyan Wang, Jianhua Cao
  • Patent number: 8827673
    Abstract: A device for dry-forming a fibrous web, in which a plurality of fibers or fiber mixtures is supplied to a forming head by means of an air flow, is described. The forming head includes a forming outlet arranged above a gas-permeable deposit belt. The fibers deposited on the deposit belt within a forming zone are continuously conveyed out of the forming zone by the deposit belt. A clearance of the forming zone formed between the forming head and the deposit belt is shielded with respect to the surroundings by several sealing means. To obtain as uniform a composition of the fiber layer as possible when depositing the fibers, the sealing means arranged on a feed side forms an inlet opening having an adjustable inflow cross-section through which a defined secondary air flow flows from the surroundings into the clearance.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: September 9, 2014
    Assignee: Oerlikon Textile GmbH & Co. KG
    Inventors: Olaf Schwarz, Ingo Mählmann
  • Patent number: 8747093
    Abstract: A spinneret for producing nanofibers from a viscous liquid using electrostatic spinning in an electric field is described. The spinneret includes one or more narrow annular bodies radially centered about and axially spaced along a central axis. The annular bodies may be discs, rings, or coils.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: June 10, 2014
    Assignee: Deakin University
    Inventors: Tong Lin, Xungai Wang, Xin Wang, Haitao Niu
  • Patent number: 8647090
    Abstract: An injection nozzle for electrospinning including a first nozzle body and a second nozzle body detachably coupled with each other and nozzle members inserted in the first and second nozzle bodies and an electrospinning device using the nozzle. The electrospinning device basically performs air electrospinning wherein a source liquid for fiber is injected together with air while the source liquid for fiber is discharged through the nozzle members, and pure electrospinning without air injection can be efficiently carried out by separating the second nozzle body in such a manner that the lower ends of the nozzle members are exposed for a predetermined length or more. Therefore, according to the present invention, pure electrospinning, air electrospinning or hot air electrospinning may be selectively carried out.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: February 11, 2014
    Assignee: Amogreentech Co., Ltd.
    Inventors: Byunggwang Jo, Inyong Seo, Sangchul Suh, Chan Kim, Cheolhyeon Kim, Seunghoon Lee, Jaehwan Kim
  • Patent number: 8591213
    Abstract: In an apparatus for the production of a non-woven fabric of filaments, where a plurality of filaments are extruded, cooled, stretched and collected on a mobile support, the means of collecting the filaments include furthermore, a gas permeable mobile support element (28), an aspirator (29) and one or more aspiration ducts (33C-36C), the collecting means being insulated from the environment air.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: November 26, 2013
    Assignee: FARE' S.p.A
    Inventor: Rosaldo Fare′
  • Patent number: 8562326
    Abstract: Provided is an electrospinning apparatus for producing nanofibers, including: a spinning solution supply unit (10); a spinning unit (30) that includes spinning nozzles (32) and a nozzle block (31) in which the spinning nozzles (32) are equidistantly arranged and supported; a nanofiber-collecting unit (40) which collects nanofibers spun from the spinning unit (30); a power supply (50) which forms an electric field in a spinning zone (Z); a process gas supply unit (20) which generates and supplies process gas to control the temperature and humidity of the spinning zone (Z) to a range appropriate for electrospinning conditions for nanofibers; and a process gas laminar flow distribution device (100) which fractionates the process gas supplied from the process gas supply unit (20), into laminar flows within the process gas laminar flow distribution device (100), and distributes the process gas from an upper portion of the spinning unit (30) to the spinning zone (Z).
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: October 22, 2013
    Assignee: Fibrane, Co., Ltd.
    Inventor: Ha Chul Kim
  • Patent number: 8550798
    Abstract: The present invention relates to an injection nozzle for electrospinning including a nozzle body and an air jacket member detachably coupled with each other, and needle members coupled to the bottom surface of the node body via injection holes of the air jacket member. The electrospinning device basically performs air electrospinning for injecting a fiber solution together with air while discharging the fiber solution through the needle members, and the needle members are exposed at the ends thereof by a length long enough to carry out error-free pure electrospinning without air injection if the air jacket member is separated. Therefore, pure electrospinning or air electrospinning can be selectively carried out.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: October 8, 2013
    Assignee: Amogreentech Co., Ltd.
    Inventors: Inyong Seo, Byunggwang Jo, Sangchul Suh, Chan Kim, Cheolhyeon Kim, Seunghoon Lee, Jaehwan Kim
  • Patent number: 8524041
    Abstract: Embodiments for methods and apparatuses for forming a nonwoven web are described herein. In one embodiment, an apparatus includes one or more sources configured to dispense a first fluid flow stream comprising a fiber and a second fluid flow stream also comprising a fiber. The apparatus also includes a mixing partition downstream from the one or more sources, where the mixing partition is positioned between the first and second flow streams from the one or more sources. The mixing partition defines one or more openings that permit fluid communication between the two flow streams. The apparatus also includes a receiving region situated downstream from the one or more sources and designed to receive at least a combined flow stream and form a nonwoven web by collecting fiber from the combined flow stream.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: September 3, 2013
    Assignee: Donaldson Company, Inc.
    Inventors: Hemant Gupta, Brad E. Kahlbaugh
  • Patent number: 8524144
    Abstract: A method and associated apparatus for melt extruding a nonwoven web includes providing a plurality of fibers from an extrusion device. The fibers are conveyed through a diverging profile portion of a fiber drawing unit (FDU) that causes the fibers to spread and expand in the machine direction within the FDU. The fibers are then conveyed through a diverging diffusion chamber spaced from the outlet of the FDU to reduce the velocity of the fibers and further spread the fibers in the machine direction. The fibers may be subjected to an applied electrostatic charge in either the diffusion chamber or the FDU. From the outlet of the diffusion chamber, the fibers are laid onto a forming surface as a nonwoven web.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: September 3, 2013
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: John H. Conrad, Eric E. Lennon, Douglas J. Hulslander, Joerg Hendrix, Detlef Frey
  • Patent number: 8496459
    Abstract: An apparatus is configured to produce a spunbonded fabric. In order to achieve an airiness of the spunbonded fabric and ready adaptability to process parameters which are to be changed, a spinning beam together with a blowing apparatus is configured to be pivotable in a pivoting unit. A relatively high airiness is achieved by the filaments running obliquely onto the fabric belt below the spinning beam. Rotary leadthroughs or elastic feed lines to the spinning beam make the slight pivoting possible.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: July 30, 2013
    Assignee: Oerlikon Textile GmbH & Co. KG
    Inventor: Günter Schütt
  • Patent number: 8444407
    Abstract: The invention relates to an installation for applying glue to fibers for the production of fiberboard, especially MDF board or similar wood material board. Said installation comprises a fiber feed unit having at least one fiber feed conduit which opens into a fiber exit tube via a fiber deflection element and receives the air that is used to transport the fibers, a chute which is located downstream of the fiber exit tube, a glue application device which has spray nozzles for spraying the fibers that emerge from the fiber exit tube and enter the chute with drops of glue, and a collection device, located downstream of the chute and having an air-permeable transport belt for collecting and optionally carrying off the fibers and a suction device located below the transport belt for suctioning air from the chute through the transport belt, the suction device having one or more suction boxes to which one or more suction pipes are connected.
    Type: Grant
    Filed: October 27, 2007
    Date of Patent: May 21, 2013
    Assignee: Siempelkamp Maschinen-und Anlagenbau GmbH & Co. KG
    Inventors: Dieter Aengenvoort, Michael Schöler, Klaus Schürmann, Lothar Sebastian
  • Patent number: 8435022
    Abstract: The invention relates to a dispersion installation for dispersing dispersible material on a dispersing material conveyor belt so as to form groups of material for producing wood-material boards. Said system comprises at least one dispersion material bunker for the dispersible material dispersed on the dispersing material conveyor belt, having at least one top side filling opening. A chute is connected to the filling opening via which the dispersible material can enter into the dispersion material bunker. The invention is characterized in that at least one brake cylinder device is arranged inside the chute, said brake cylinder comprising at least two rotationally driven brake cylinders.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: May 7, 2013
    Assignee: Siempelkamp Maschinen-und Anlagenbau GmbH & Co. KG
    Inventors: Ralf Burckhardt, Joerg Pudeg, Friedhelm Schluepen, Klaus Wollny
  • Publication number: 20130099409
    Abstract: An apparatus and a method for guiding and depositing synthetic fibers to form a nonwoven web is described. The apparatus has a drawing device, a deposit belt, and a plurality of guidance means disposed between the drawing device and the deposit belt, which form in pairs numerous merging guidance pathways for the guidance of a fiber curtain formed by the fibers. The guidance means have numerous air intake slits beneath the drawing device, which enable an introduction of a secondary airstream. Numerous air conducting elements disposed on one of the guidance means are associated with at least one of the air intake slits. In this manner at least one of the sub-streams of the secondary airstream laterally adjacent to the fiber curtain can be introduced to the fiber stream at an inflow angle that is at a right angle to the deposit belt.
    Type: Application
    Filed: October 22, 2012
    Publication date: April 25, 2013
    Applicant: Oerlikon Textile & GmbH & Co. KG
    Inventor: Oerlikon Textile & GmbH & Co. KG
  • Patent number: 8366986
    Abstract: Electrostatic fine fiber generation equipment such as for forming nano-fibers from polymer solution is provided. The fine fiber generation equipment includes a strand that may take the form of a stainless steel beaded chain. The beaded chain can be an endless chain entrained upon two guide wheels and driven about an endless path perpendicularly relative to the collection media.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: February 5, 2013
    Assignee: CLARCOR Inc.
    Inventors: Thomas B. Green, Scotty L. King, Lei Li
  • Patent number: 8348652
    Abstract: An apparatus for manufacturing nonwoven fabric including a spinning nozzle, a fiber extension device, a receiver device and a sprinkler is provided. The spinning nozzle is filled with a spinning solution and has a plurality of spinners, where each of the spinners includes a spinning port and a main gas port surrounding the spinning port. The fiber extension device is disposed under the spinning nozzle and includes at least one secondary gas supply device. The secondary gas supply device has an arc gas distribution portion, such that the direction of gas ejected from the secondary gas supply device is the same as the direction of gas ejected from the main gas port. The receiver device is disposed under the fiber extension device. The sprinkler is disposed above the fiber extension device or the receiver device.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: January 8, 2013
    Assignee: Taiwan Textile Research Institute
    Inventor: Tzu-Hsiang Huang
  • Patent number: 8303287
    Abstract: A spunbonding apparatus includes at least one nozzle, a coagulating tank, a deformation region, a slit passage, and a drawing flow pump. The nozzle extrudes at least one spinning solution. The coagulating tank contains coagulating liquid to coagulate the spinning solution into at least one fiber. The deformation region is located between the coagulating tank and the nozzle. The slit passage is connected to the coagulating tank and allows the fiber to pass therethrough. The drawing flow pump provides a drawing flow to the slit passage.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: November 6, 2012
    Assignee: Taiwan Textile Research Institute
    Inventors: Chao-Chun Peng, Tzu-Hsiang Huang
  • Patent number: 8303288
    Abstract: A machine for manufacturing a nonwoven fabric includes a conveyer net, a spunbonding apparatus, and a container. In use, the spunbonding apparatus can project at least one fiber onto the conveyer net. The container can contain liquid, wherein the liquid level of the container is higher than at least a part of the conveyer net which the fiber is projected onto.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: November 6, 2012
    Assignee: Taiwan Textile Research Institute
    Inventors: Tzu-Hsiang Huang, Ming-Chih Kuo, Chao-Chun Peng
  • Patent number: 8267681
    Abstract: Embodiments for methods and apparatuses for forming a nonwoven web are described herein. In one embodiment, an apparatus includes one or more sources configured to dispense a first fluid flow stream comprising a fiber and a second fluid flow stream also comprising a fiber. The apparatus also includes a mixing partition downstream from the one or more sources, where the mixing partition is positioned between the first and second flow streams from the one or more sources. The mixing partition defines one or more openings that permit fluid communication between the two flow streams. The apparatus also includes a receiving region situated downstream from the one or more sources and designed to receive at least a combined flow stream and form a nonwoven web by collecting fiber from the combined flow stream.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: September 18, 2012
    Assignee: Donaldson Company, Inc.
    Inventors: Hemant Gupta, Brad E. Kahlbaugh
  • Patent number: 8257626
    Abstract: A method for the manufacture of spatial objects of a fleece or felt, wherein the fibers are deposited on a mold that is preferably air-permeable. The fibers may be attracted to the mold by a vacuum applied to the underside of said mold. Preferably, the mold has several spatial structures that define the shape of the fiber web that is being formed and that correspond at least approximately to the desired final shape. By subsequent compacting of the thusly obtained fiber web, a spatially three-dimensional felt object is obtained. In this method, subsequent deforming steps are unnecessary or reduced to a minimum, so that the material to be produced does not experience any substantial distortion.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: September 4, 2012
    Assignee: Groz-Beckert KG
    Inventor: Thomas Kühl
  • Patent number: 8241025
    Abstract: An apparatus for scattering fibrous material, e.g., chips, the apparatus serving to spread chips using either a throw or air-jet spreading method to form a mat (3) of chips onto a moving band conveyor (4) or the like, whereby the scattering process avails a gas flow, such as air flow, for instance. The apparatus includes a scattering chamber mounted above the band conveyor or the like. In order to prevent lateral turbulence, the volume of the scattering chamber's length wherein the major portion of the material being scattered falls onto the band conveyor or the like is at least partially divided into smaller subspaces adjacent to each other in the cross-machine direction by substantially thin plate-like elements (9) set apart from each other in a cross-machine direction at a spacing substantially larger than the particle size of the material being scattered.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: August 14, 2012
    Assignee: Dieffenbacher Panelboard Oy
    Inventor: Ari Mannikko
  • Patent number: 8231370
    Abstract: An apparatus and method for depositing synthetic fibers to form a non-woven web includes guiding the synthetic fibers by a blowing stream through a drawing unit for depositing on a deposit belt. Multiple guidance elements are arranged inside the guidance distance between a blast opening of the drawing unit and the deposit belt, and form a guidance channel above the deposit belt. The guidance elements form a channel opening at a distance from the blast opening of the drawing unit. In order to achieve constant strength in the deposition of the fiber strands, the distance between the outlet of the drawing unit and the channel opening of the guidance channel is larger than half the guidance distance, and the guidance width of an open space formed between the outlet of the drawing unit and the channel opening of the guidance channel is larger than the guidance channel.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: July 31, 2012
    Assignee: Oerlikon Textile GmbH & Co. KG.
    Inventors: Lutz Maas, Henning Rave, Wiley Scott Harris
  • Patent number: 8187524
    Abstract: An apparatus for manufacturing an absorbent body, having a recessed form die formed on a predetermined face of a predetermined member, moving in one direction along a moving path along the predetermined face; a duct disposed in a predetermined position in the moving path, discharging a gas including fluid absorbent fibers from an opening section toward the predetermined face, an absorbent body being formed by suction of the gas through intake holes at a bottom section of the form die to stack into the form die the fluid absorbent fibers included in the gas when the form die passes by the position of the duct. A gap is formed between the predetermined face and the opening section of the duct. A gas pressure inside the duct is lower than a gas pressure outside the duct by suction of the gas from the bottom section of the form die. A first wall is outside the duct. The first wall is spaced from a wall of the duct by a first spacing and spaced from the predetermined face by a second spacing.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: May 29, 2012
    Assignee: Uni-Charm Corporation
    Inventor: Takanori Yano
  • Patent number: 8186986
    Abstract: A device for drawing melt-spun filaments for forming a spunbonded fabric includes at least one guide member. The filaments are guided through a slot-shaped nozzle, onto which compressed air is applied, and which conveys the filaments through the drawing nozzle. Guide members are provided on both sides of the slot on the base of the slot-shaped outlet, which cause a uniform structure of the fabric due to their shaping. This is achieved when a guide member has a plurality of notches parallel to the conveying direction, and the opposite guide member has a plurality of bores, which passively connect the space between the guide member with the environment.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: May 29, 2012
    Assignee: Oerlikon Textile GmbH & Co. KG
    Inventors: Holger Schöttler, Dimitrios Sapouridis
  • Patent number: 8186987
    Abstract: Provided is a nano-fiber manufacturing apparatus which manufactures nano-fibers by an electrostatic explosion, and has a low possibility of explosion even when a flammable solvent is used. The nano-fiber manufacturing apparatus (101) having an ejection unit (110) which ejects solution (200) that is raw material liquid for nano-fibers (200) to a manufacturing space in which the nano-fibers (200) are manufactured by an electrostatic explosion of the solution (200), and a charging unit which charges the solution (200). The nano-fiber manufacturing apparatus (101) includes a gas supply source (103) which supplies safety gas to change an atmosphere of the manufacturing space, in which the solution (200) is ejected, into a low oxygen atmosphere, and a partition (102) which maintains the manufacturing space at a lower oxygen atmosphere than an atmosphere of an outside space of the partition (102).
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: May 29, 2012
    Assignee: Panasonic Corporation
    Inventors: Hiroto Sumida, Takahiro Kurokawa, Kazunori Ishikawa, Mitsuhiro Takahashi, Mikio Takezawa, Yoshiaki Tominaga
  • Patent number: 8157554
    Abstract: The invention relates to the rotary spinning electrode of an elongated shape into the device for production of nanofibres through electrostatic spinning of polymer solutions comprising a pair of end faces, between them there are positioned spinning members formed by wire, which are distributed equally along the circumference and parallel with axis of rotation of the rotary spinning electrode, while the end faces are made of electrically non-conducting material and all the spinning members are mutually connected in a electrically conductive manner.
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: April 17, 2012
    Assignees: Elmarco S.R.O.
    Inventors: David Petras, Miroslav Maly, Jan Pozner, Jan Trdlicka, Martin Kovac
  • Patent number: 8137088
    Abstract: The invention relates to a device for depositing synthetic fibers to form a non-woven web. The fibers are transported through a take-off nozzle by means of an air stream in the direction of a depositing belt. The device is provided with a guide duct for guiding fibers from the take-off nozzle to the depositing belt, said duct having a mobile retaining flap on one end of a longitudinal side that faces the depositing belt. To obtain a depositing area on the depositing belt that is separate from the environment as the position of the retaining flap is modified, the retaining flap is formed by a support and an elastic sealing lip, which is held in frictional contact with the depositing belt.
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: March 20, 2012
    Assignee: Oerlikon Textile GmbH & Co. KG
    Inventors: Galliano Boscolo, Hans-Holger Heesch
  • Patent number: 8057205
    Abstract: The invention provides a method for manufacturing spun-bonded nonwoven fabrics that can reduce the diameter of a filament without decreasing productivity and can stably produce nonwoven fabrics, comprising: quenching a multiple number of continuous melt-spun filaments through spinning nozzles with quench air fed to a quenching chamber, drawing the filaments, and depositing the filaments on a moving collector surface, wherein the quench air fed to the quenching chamber is divided into at least 2 streams in vertical direction, and an air velocity of the quench air in the lowermost stream is set higher than that of the 50 quench air in the uppermost stream. The invention also provides an apparatus for manufacturing spun-bonded nonwoven fabrics, wherein quench air fed to the quenching chamber is divided into at least 2 streams in the vertical direction, wherein the velocities of the quench air are independently controllable in the respective streams.
    Type: Grant
    Filed: April 5, 2010
    Date of Patent: November 15, 2011
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Minoru Hisada, Kenichi Suzuki
  • Patent number: 8017066
    Abstract: A method and apparatus for forming nonwoven melt spun webs by spinning a curtain of filaments into a pressurized chamber where they are contacted with pressurized quenching fluid, then using the fluid to draw the filaments through a slot at the bottom of the chamber. The slot is a narrow two dimensional impingement point running the length of the filament curtain where the pressurized quench fluid passes through, escaping to atmosphere. The fluid pressure (potential) energy in the chamber is exchanged for velocity (kinetic) energy at the slot impingement point. The fast moving stream of fluid inside and exiting the slot acts to pull, or draw the filaments through the slot. The fluid and fiber stream is deposited onto a porous collection conveyor belt, forming a fleece web. The invention is more efficient, less complicated, easier to maintain and easier to control than prior systems for melt spinning nonwoven webs.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: September 13, 2011
    Inventor: Perry Hartge
  • Patent number: 7980838
    Abstract: The present invention relates to an electrospinning apparatus for mass-production of nanofibers, particularly to an electrospinning apparatus with an electric stability and an improved nozzle blocks. The bottom-up electrospinning apparatus for the mass-production of nanofiber comprises at least one nozzle block having a plurality of spinning nozzles arranged in the horizontal and vertical direction; a collector installed over the nozzle blocks in order to correspond to the nozzle blocks and maintain a certain distance in between; a power source to apply voltage difference between the nozzle block and the collector; and a spinning solution container to supply the spinning solution to the nozzle block, wherein the nozzle block and the collector are connected to the positive terminal and the negative terminal, respectively and among a plurality of spinning nozzles arranged along the horizontal line, a spinning nozzle in the middle and a spinning nozzle in the end have different height.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: July 19, 2011
    Assignee: Finetex Ene, Inc.
    Inventor: Jong-Chul Park
  • Patent number: 7967588
    Abstract: Electrostatic fine fiber generation equipment such as for forming nano-fibers from polymer solution is provided. The fine fiber generation equipment includes a strand that may take the form of a stainless steel beaded chain. The beaded chain can be an endless chain entrained upon two guide wheels and driven about an endless path perpendicularly relative to the collection media.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: June 28, 2011
    Assignee: Clarcor Inc.
    Inventors: Thomas B. Green, Scotty L. King, Lei Li
  • Patent number: 7951315
    Abstract: The present invention is to provide a polyvinyl chloride (PVC) fiber for artificial hair. The PVC fiber is manufactured by melt spinning a PVC resin composition with a nozzle, wherein the nozzle has a nozzle hole having a diameter D and a land length L, and a nozzle leading portion having a cone angle, and wherein a ratio of L/D is 1-3, a height of the nozzle leading portion is at least 4 mm, and the cone angle is 20°-90°. The resulting PVC fiber has an arithmetic mean roughness of 0.18-0.38 ?m and a maximum height of 0.5-3.5 ?m along a longitudinal direction, specified by JIS B 0601.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: May 31, 2011
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Akira Sakurai, Akira Moroi
  • Patent number: 7934917
    Abstract: A spinneret format, an electric-field reversal format and a process for post-treatment of membranes formed from electro-spinning or electro-blowing are provided, including a cleaning method and apparatus for electro-blowing or blowing-assisted electro-spinning technology.
    Type: Grant
    Filed: September 23, 2008
    Date of Patent: May 3, 2011
    Assignee: The Research Foundation of State University of New York
    Inventors: Benjamin Chu, Benjamin S. Hsiao, Dufei Fang
  • Patent number: 7931456
    Abstract: An improved electroblowing process is provided for forming a fibrous web of nanofibers wherein polymer stream is issued from a spinning nozzle in a spinneret with the aid of a forwarding gas stream, passes an electrode and a resulting nanofiber web is collected on a collector. The process includes applying a high voltage to the electrode and grounding the spinneret such that an electric field is generated between the spinneret and the electrode of sufficient strength to impart an electrical charge on the polymer as it issues from the spinning nozzle.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: April 26, 2011
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Michael Allen Bryner, Jack Eugene Armantrout, Benjamin Scott Johnson
  • Publication number: 20110042844
    Abstract: A method and apparatus for forming a batt of particulate material which may be used in an absorbent article. The apparatus may include a vacuum zone, an air impermeable fence zone adjacent to the vacuum zone, and an air permeable fence zone adjacent to the vacuum zone. The air permeable fence zone may comprise an ambient air entry conduit in communication with an ambient air exit port. The method may include providing a laydown drum and a first web of material, positioning the first web of material substantially adjacent to the laydown drum, generating a vacuum through the laydown drum, depositing particulate matter onto the first web of material, and rotating the laydown drum.
    Type: Application
    Filed: August 18, 2009
    Publication date: February 24, 2011
    Inventors: Darrell Ian Brown, Bradley Edward Walsh, Joseph Allen Eckstein, Horst Blessing, Volker Maier, Siegfried Link
  • Patent number: 7887311
    Abstract: A spinneret format, an electric-field reversal format and a process for post-treatment of membranes formed from electro-spinning or electro-blowing are provided, including a cleaning method and apparatus for electro-blowing or blowing-assisted electro-spinning technology.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: February 15, 2011
    Assignee: The Research Foundation of State University of New York
    Inventors: Benjamin Chu, Benjamin S. Hsaio, Dufei Fang
  • Patent number: 7740461
    Abstract: An electrospinning apparatus is described. The electrospinning apparatus has a rotary nozzle mechanism that moves simultaneously along a non-linear track for forming polymeric fibrils, so that the polymeric fibrils can be piled to form a uniform web on a receiving carrier from any receiving angle. Therefore, the electrospinning apparatus resolves problems of the prior polymeric fibrils, such as various distribution and slow production rate. In addition, a method of manufacturing polymeric fibrils in the aforementioned electrospinning apparatus is further described.
    Type: Grant
    Filed: July 27, 2005
    Date of Patent: June 22, 2010
    Assignee: Taiwan Textile Research Institute
    Inventors: Haw-Jer Chang, Hung-En Chen, Po-Hsiung Huang, Jen-Hsiung Lee, Ching-Hui Tseng
  • Patent number: 7722347
    Abstract: Apparatus (100, 101, 102) and die cartridge assembly (18, 44, 45, 47) adapted for use with same for producing fibrous material (212). The apparatus (100) comprises a removably attachable die cartridge assembly (18) that adapts to conventional spunmelt equipment. The die cartridge assembly (18) is removably positionable beneath an extrusion body (10) for effecting formation of fibrous material by fibrillation of polymer films. The cartridge assembly (18) includes at least one polymer passage (19) communicating with a molten polymer source (10) for directing molten polymer onto at least one film forming surface (20, 28) defined by the cartridge assembly (18), and also defines at least one gas passage (222, 22, 30) communicating with a gas source (16) for directing pressurized gas (220) against the molten polymer (210) in the form of a film for effecting formation of the fibrous material (212).
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: May 25, 2010
    Assignee: Polymer Group, Inc.
    Inventors: Timothy Krause, Michael H. Johnson, Richard Ferencz
  • Patent number: 7704062
    Abstract: A nonwoven production machine includes a spun-bond tower for extruding filaments and associated apparatus for forming the filaments into a web that is consolidated by water jets, a web that is calendered and then softened by water jets, or a web that is only calendered.
    Type: Grant
    Filed: October 26, 2004
    Date of Patent: April 27, 2010
    Assignee: Rieter Perfojet
    Inventors: Frédéric Noelle, André Michalon
  • Publication number: 20100090363
    Abstract: There is described a method and an apparatus for making a multilayered web product (1), including at least one fibre layer (6) which is formed by airforming combined with at least one additional layer in the form of a plastic film (13, 21). The fibre layer (6) is formed and fixed, preferably by heat fixing, and the plastic film (13, 21) is extruded directly upon or in immediate association to the previously formed and fixed fibre layer and is joined with the fibre layer by a compacting action in a compacting unit (9, 17). By the compacting, the hot plastic film will be joined to and pressed into the fibre layer for producing an integrated continuous product without need of separate heat supply.
    Type: Application
    Filed: October 23, 2007
    Publication date: April 15, 2010
    Inventor: Jes Kjaer Larsen
  • Publication number: 20100092591
    Abstract: The invention relates to a dispersion installation for dispersing dispersible material on a dispersing material conveyor belt so as to form groups of material for producing wood-material boards. Said system comprises at least one dispersion material bunker for the dispersible material dispersed on the dispersing material conveyor belt, having at least one top side filling opening. A chute is connected to the tilling opening via which the dispersible material can enter into the dispersion material bunker. The invention is characterised in that at least one brake cylinder device is arranged inside the chute, said brake cylinder comprising at least two rotationally driven brake cylinders.
    Type: Application
    Filed: January 31, 2008
    Publication date: April 15, 2010
    Inventors: Ralf Burckhardt, Joerg Pudeg, Friedhelm Schluepen, Klaus Wollny
  • Patent number: 7690903
    Abstract: The invention concerns a forming head for an apparatus for the production of a non-woven fabric by depositing fibers on a conveyor belt, comprising a fiber feeder which opens into a fiber processing chamber and which has a lower deposit opening for the delivery of fibers, wherein arranged in the fiber processing chamber are interengaging needle rollers with longitudinal axes oriented in mutually parallel relationship, which can rotate about their respective longitudinal axis, and the interengaging needle rollers enclose an inner chamber and are arranged with respect to the fiber feeder and the deposit opening in such a way that fibers fed to the forming head in operation enter the inner chamber by passing through between interengaging needle rollers and leave the inner chamber also by passing through between interengaging needle rollers.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: April 6, 2010
    Assignee: CONCERT GmbH
    Inventors: Raymond Norgaard, Morten Rise Hansen
  • Patent number: 7690904
    Abstract: The invention concerns an installation for producing a nonwoven fabric comprising a spun bond lathe depositing a web of filaments on a first conveyor, the mat being consolidated on a first mobile element by entangling means. The invention is characterized in that it comprises means for passing, without any change in ratio, the mat of filaments on a first mobile element whereon the mat is consolidated by hydro-entangling means.
    Type: Grant
    Filed: October 10, 2003
    Date of Patent: April 6, 2010
    Assignee: Rieter Perfojet
    Inventor: Frédéric Noelle
  • Patent number: 7687012
    Abstract: A method and apparatus including means for delivery of at least one high speed composite stream of polymer fibers and secondary material. The method and apparatus also includes a movable collection device which intersects in the composite stream of polymer fibers and secondary material and at least one non-contact deflector to redirect at least a portion of the composite stream.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: March 30, 2010
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Susan J. Daniels, Sara J. Schewe, Randall W. Foss, David P. Hunter, Michael A. Schmidt
  • Patent number: 7682554
    Abstract: An apparatus for forming a shaped fibrous nonwoven structure including a delivery system adapted to provide a high speed composite stream comprising thermoplastic polymer fibers and a secondary material. The apparatus also includes a movable collection device having a collection surface which intersects the composite stream, and at least one deflector to mechanically redirect at least a portion of the composite stream. Further the deflector moves in synchronization with the movable collection device, such that the composite stream is collected on the collection surface forming a fibrous nonwoven structure having at least one non-linear edge.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: March 23, 2010
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Michael B. Venturino, Seth M. Newlin, Paul E. Olmstead, Susan J. Daniels, Sara J. Schewe
  • Patent number: 7600990
    Abstract: An electrostatic spinning apparatus includes a feeding device, at least one linear electrode, at least one collecting electrode, and a high-voltage power supply. The feeding device includes a tank and a roller and an electrostatic spinning solution is contained in the tank. The roller is rolled in the tank. The linear electrode is contact with the roller to absorb the electrostatic spinning solution onto the linear electrode. The collecting electrode is disposed equidistantly to the linear electrode. The high-voltage power supply is connected with the linear electrode and the collecting electrode to opposite charge the linear electrode and the collecting electrode. The electrostatic spinning solution is guided to the collecting electrode from linear electrode and formed an electrostatic spinning fiber.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: October 13, 2009
    Assignee: Taiwan Textile Research Institute
    Inventors: Haw-Jer Chang, Jen-Hsiung Lee