With Treatment Patents (Class 28/112)
  • Patent number: 10309016
    Abstract: A method preparing a metals carbides multilayer coating on at least one surface of a first carbon layer of a substrate, or under the surface inside the first carbon layer, by a reactive melt infiltration technique, includes: a) putting the surface into contact with a solid metal disilicide MSi2, M is selected from hafnium, titanium, and tantalum; b) heating the substrate and the metal disilicide to above the melting temperature of the metal disilicide; c) observing a plateau at the temperature for a sufficient duration so that the metal disilicide reacts with the carbon and forms a first multilayer coating including a dense and continuous layer of SiC, fully covered by a dense and continuous layer of MC; d) cooling the part with the first multilayer coating; and then, at the end of d), optionally e) depositing a second carbon layer at the surface of the first multilayer coating.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: June 4, 2019
    Assignees: Commissariat a l'energie atomique et aux energies alternatives, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Alexandre Allemand, Edouard Guillermin, Yann Le Petitcorps
  • Patent number: 9695533
    Abstract: The invention relates to an intermediate product intended for the production of a composite part in combination with a resin matrix, formed by at least two unidirectional sets of reinforcing yarns, the yams of each set extending in a different direction, whereby the sets are interlinked by means of stitching or knitting using at least one stitching or knitting yarn. The invention is characterized in that the stitching or knitting yarn has a yarn count of less than or equal to 30 dTex, preferably less than or equal to 25 dTex, in accordance with standard EN ISO 2060.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: July 4, 2017
    Assignee: Hexcel Reinforcements
    Inventors: Jean-Marc Beraud, Patrick Henrat
  • Patent number: 9074317
    Abstract: Artificial leather with optimal elongation and a method for manufacturing the same is disclosed, the artificial leather comprising a non-woven fabric with micro-fibers and a polymeric elastomer impregnated into the non-woven-fiber, wherein the polymeric elastomer is 20 to 30% by weight with respect to a total weight of the artificial leather, and a density of the non-woven fabric is within the range of 0.160 to 0.250 g/cm3, wherein the artificial leather can be easily used for the goods with lots of flexed regions, for example, the headliner of vehicle.
    Type: Grant
    Filed: December 31, 2009
    Date of Patent: July 7, 2015
    Assignee: KOLON INDUSTRIES, INC.
    Inventors: Yeong Nam Hwang, Dong Tak Kim, Won Jun Kim
  • Publication number: 20150147474
    Abstract: A foaming porous pad suitable for coupling to a hand-held device and for application to human skin includes a porous pad substrate and a foaming composition disposed on the porous pad substrate. The porous pad substrate includes a nonwoven pile fabric having a nonwoven backing layer and a pile comprising individual fibers extending from the backing layer. The nonwoven pile fabric has fibers having a denier of less than about 9. Other aspects of the disclosure include a kit including a foaming porous pad and a motorized handheld device, methods of making the foaming porous pad, and methods of using the foaming porous pad.
    Type: Application
    Filed: January 21, 2015
    Publication date: May 28, 2015
    Applicant: JOHNSON & JOHNSON CONSUMER COMPANIES, INC.
    Inventors: Nikoleta Batchvarova, David Gubernick, Mark Murphy
  • Publication number: 20150126090
    Abstract: The invention discloses high performance layered textile materials including at least one nonwoven layer sandwiched in between at least one first yarn based substrate layer and at least one second yarn based substrate layer. The non-woven layer has a first face and a second face, the first face being attached to and mechanically entangled with the first yarn based substrate layer and the second face being attached to and mechanically entangled with the second yarn based substrate layer. The formed integral material does not require assembly of individual layers prior to forming a finished product.
    Type: Application
    Filed: November 1, 2013
    Publication date: May 7, 2015
    Applicant: TEX-TECH INDUSTRIES, INC.
    Inventors: Thomas Nelson, Eric Barter, Robert Nelson
  • Publication number: 20140322466
    Abstract: The invention refers to a process for the preparation of a microfibrous non-woven fabric based on polyester or polyamide microfibres immersed in a polyurethane matrix, and having a thickness equal to or less than 0.65 mm, a flat or slightly mottled appearance and a nap length of less than 350 ?m. The non-woven fabric is used for the preparation of coverings for consumer goods, particularly for the preparation of covers and cases for electronic products.
    Type: Application
    Filed: January 11, 2013
    Publication date: October 30, 2014
    Inventors: Giovanni Belloni, Carmine Carlo Ammirati, Giovanni Addino, Francesco Panetti, Walter Cardinali, Gianni Romani, Carlo Costa, Marcello Concezzi
  • Publication number: 20140235131
    Abstract: The present invention relates to a multipurpose functional nonwoven fabric, and more particularly, to a multipurpose functional nonwoven fabric which is manufactured by performing a pretreatment process on carbonized fiber cotton, and stacking the pretreated carbonized fiber on natural cotton, mixing the pretreated carbonized fiber cotton with the natural cotton and scutching the mixed cotton, or introducing the natural cotton and stacking the natural cotton on an intermediate layer of the pretreated carbonized fiber, and a method for manufacturing same. Web formation and stacking at a cutting machine can be easily performed by performing the pretreatment process on the carbonized fiber.
    Type: Application
    Filed: October 25, 2011
    Publication date: August 21, 2014
    Applicant: ENEXIS CO., LTD.
    Inventors: Gapho Yun, Giho Yun, Hakbum Kim, Kwang Hui So, Eunhak Song
  • Publication number: 20140182097
    Abstract: A method for manufacturing a conductive fabric is undertaken via a fixing device which has a plurality of working sections. According to an arrangement of the conductive yarn disposed between a first flexible base and a second flexible base, the working sections of the fixing device are extended to form a plurality of fixing points and the other working sections are retracted without forming the fixing points, thereby fixing the conductive yarn between the first and second flexible bases with a dot-like spaced pattern to obtain conductive fabric products having different conductive yarn arrangements without replacing the fixing device.
    Type: Application
    Filed: March 4, 2014
    Publication date: July 3, 2014
    Applicant: Wai Tai Technology Co., Ltd.
    Inventor: Hung-Jen Chen
  • Publication number: 20140174934
    Abstract: The present invention relates to a filter medium, a method for the manufacture thereof and the use of the filter medium according to the invention. The filter medium according to the invention comprises at least two textile nonwoven layers which are joined to one another by needling. The needled composite is then subjected to an aftertreatment so that the holes present from he needling are reduced by at least 50%.
    Type: Application
    Filed: December 18, 2013
    Publication date: June 26, 2014
    Applicant: JOHNS MANVILLE
    Inventors: Joerg Meier, Joerg Lehnert
  • Publication number: 20140083065
    Abstract: The above objectives are accomplished according to the present invention by providing a filter medium for operating environments needing static electricity dissipation to help reduce ignition sources comprising: a substrate of non-woven felt including a polymeric fiber; a conductive scrim having a grid of conductive filaments adjacent to said substrate layer; and, a top layer of non-woven felt including a polymeric fiber and copolymer fiber blend having a melt temperature greater than 100° C. wherein said substrate layer, said conductive scrim and said top layer are manufactured into said filter medium by mechanical web formation.
    Type: Application
    Filed: September 26, 2012
    Publication date: March 27, 2014
    Inventors: Eric Winters, John Lewis, Brian Fields
  • Patent number: 8673188
    Abstract: A carbon/carbon part and a process for making carbon/carbon parts is provided. The process involves forming steps, carbonization steps and densification steps. The forming steps may include needling fibrous layers to form fibers that extend in three directions. The carbonization steps may include applying pressure to increase the fiber volume ratio of the fibrous preform. The densification steps may include filling the voids of the fibrous preform with a carbon matrix.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: March 18, 2014
    Assignee: Goodrich Corporation
    Inventors: John S. Linck, Chris T. Kirkpatrick
  • Publication number: 20130122770
    Abstract: A system may include a plurality of tow band processing lines and a master air jet in communication with the tow band processing lines to receive a plurality of processed tow bands from the tow band processing lines to form a bulked web. The system may be used to form a bulked web that itself is a nonwoven material or that may be further processed into a nonwoven material.
    Type: Application
    Filed: November 16, 2011
    Publication date: May 16, 2013
    Inventors: Sanjay Wahal, Edward J. Clark, Ray Robertson, Jeffrey Scott Conley
  • Publication number: 20130052399
    Abstract: A method of making a sheet-form loop product can include placing a layer of staple fibers on a first side of a substrate, the layer of staple fibers including first staple fibers and second staple fibers that are intermingled with one another, where a diameter of the smallest circle capable of circumscribing one of the second staple fibers is greater than a diameter of the smallest circle capable of circumscribing one of the first staple fibers; needling substantially only the first fibers of the layer through the substrate by penetrating the substrate with needles that drag portions of the first fibers through the substrate during needling, leaving exposed loops of the first fibers extending from a second side of the substrate; and anchoring the loops of the first fibers by fusing the second fibers to each other on the first side of the substrate.
    Type: Application
    Filed: June 18, 2012
    Publication date: February 28, 2013
    Applicant: VELCRO INDUSTRIES B.V.
    Inventor: James R. Barker
  • Publication number: 20130052403
    Abstract: A method of making a sheet-form loop-engageable fastener product includes placing a layer of staple fibers on a first side of a substrate, needling fibers of the layer through the substrate to form loops extending from a second side of the substrate, removing end regions from at least some of the loops to form stems, and forming loop-engageable heads at free ends of at least some of the stems.
    Type: Application
    Filed: June 18, 2012
    Publication date: February 28, 2013
    Inventors: James R. Barker, Christopher M. Gallant
  • Patent number: 8381375
    Abstract: A crosslapper receives a card web and folds it into a lap intended to be needle-punched or consolidated by other ways. The web includes zones which are more condensed, having a spectrum of orientation of fibers with a component parallel to the width of the web, alternating with less condensed zones having a longitudinal unidirectional spectrum of orientations. The zones which are less condensed are used to form the edge zones of the lap. The result is that the lap has different respective spectra of orientation which pre-compensate for the unwanted changes produced by the needle-punching or other consolidation which follows. A needle-punched lap is obtained having a uniform MD/CD ratio (relationship between longitudinal and respectively transverse tensile strengths) or having a sought profile of the MD/CD ratio across the width of the lap.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: February 26, 2013
    Assignee: Asselin-Thibeau
    Inventors: Cathia Dos Santos, Michel Colotte, Jean-Louis Dupont, François Louis
  • Publication number: 20130017747
    Abstract: A method for obtaining temporary non-stretchability characteristics, mainly in a machine direction, in a non-woven fabric having any level of stretchability, in order to ease converting is disclosed. The non-stretchability characteristics can be then eliminated in order to restore the original characteristics of the non-woven fabric. This technique allows the formation of final products comprising stretchable non-woven fabrics by converting machines.
    Type: Application
    Filed: July 11, 2012
    Publication date: January 17, 2013
    Applicant: TAMICARE LTD.
    Inventor: Ehud Giloh
  • Publication number: 20130007998
    Abstract: A filter assembly includes a filter pad comprising fibers including natural, synthetic and/or hybrid fibers. A stabilizer frame formed of a non-metallic material may be imbedded in the filter pad. The stabilizer frame may be configured to provide support to the filter pad to maintain the filter pad in a generally flat configuration. In accordance with a particular embodiment, the filter pad may be comprised of at least first and second fibrous mats that are coupled together. In this embodiment, the stabilizer frame may be disposed between and coupled with the first and second fibrous mats.
    Type: Application
    Filed: September 13, 2012
    Publication date: January 10, 2013
    Applicant: ELLIS FIBRE USA
    Inventors: Glenn David Alexander, Joseph Anthony Salpietra, JR.
  • Publication number: 20120189806
    Abstract: A structure for use in industrial fabrics such as paper machine clothing and engineered fabrics is disclosed. The structure includes one or more layers of an elastic nonwoven extruded film or sheet, which is elastic, resilient, and compressible in a thickness direction, and extensible, bendable, and resilient in its length and transverse directions, and one or more layers of a plurality of substantially parallel machine direction (MD) yarns in various patterns. The structure can also include one or more layers of a plurality of substantially parallel cross-machine direction (CD) yarns attached on top of or under the MD yarns. The structure has a high degree of both compressibility under an applied normal load and excellent recovery (resiliency or spring back) upon removal of that load.
    Type: Application
    Filed: January 21, 2011
    Publication date: July 26, 2012
    Applicant: Albany International Corp.
    Inventors: Robert HANSEN, Bjorn Rydin
  • Patent number: 8214981
    Abstract: A method and apparatus for Z-direction reinforcement of composite laminates is disclosed. Discrete fibers are pulled through a fiber composite preform in the Z-direction by barbed needles.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: July 10, 2012
    Assignee: Bell Helicopter Textron Inc.
    Inventors: Donn J. Hethcock, Scott J. Drennan, Ken D. Cominsky
  • Patent number: 8074330
    Abstract: A method for preparing a needled preform comprises transporting, cutting and needling a textile tape. The method further comprises cutting through a portion of the textile tape with a cutting device. The textile tape remains substantially contiguous after the cutting. The method further comprises needling the textile tape into a needled preform after cutting the textile tape, and the needling utilizes needles having working surfaces oriented in a direction to transfer fiber segments from a selected fiber orientation into a z-direction. In an embodiment, a system for enabling z-fiber transfer in a textile tape comprises a textile support configured to transport the textile tape, a cutting device configured to cut a portion of the textile tape, and a needling device configured to needle the textile tape into a needled preform after the cutting device cuts the textile tape.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: December 13, 2011
    Assignee: Goodrich Corporation
    Inventor: Jean-Francois Lescostaouec
  • Patent number: 8025751
    Abstract: The present invention concerns a process for forming a wearable and functional fabric from a composite material comprising a nonwoven face layer containing a plurality of fibers, and at least one thermoplastic binder layer disposed underneath. The fibers are initially arranged in a generally planar web and subsequently needlepunched through at least one binder layer. The fiber layers can also be placed on both sides of one or more centrally-located binder layers, and further reinforced with scrims. In an innovative aspect of the invention, the composite is heated under low and uniform pressure to remove thermal stresses, resulting in at a least one relatively smooth face that can be coated to form a wearable fabric, e.g., artificial leather, odor absorbing fabric, and the like.
    Type: Grant
    Filed: May 7, 2008
    Date of Patent: September 27, 2011
    Assignee: DZS, LLC
    Inventor: Dimitri Peter Zafiroglu
  • Publication number: 20110225782
    Abstract: A carpet is having a raschel fabric to the back face. The raschel fabric consists of wefts which are inlay-yarns and warps which are chain-stitched yarns. The warp consists of chain-stitched ground yarns 3a, 3b, and a pile yarn 4 which forms standing loop piles on specified courses and which is chain-stitched with the ground yarns except said specified courses. The pile yarn consists of two mono-filaments 5, 5. The two mono-filaments 5, 5 are twisted at least one time per the length of each loop pile. Cut piles are formed by mechanically cutting the each loop pile near the top thereof. The two mono-filaments in the cut pile are disjoining each other and standing with inclination at random direction on the raschel fabric. When the carpet is placed on the surface of a mat, each mono-filament which is formed on the back face of the carpet, bites into the surface of the mat. Therefore, it is prevented that the carpet is displaced.
    Type: Application
    Filed: June 2, 2011
    Publication date: September 22, 2011
    Inventor: Masahiko Imaizumi
  • Patent number: 7998887
    Abstract: To provide a nonwoven fabric containing ultra-fine fibers suitable as a leather-like sheet, and also a leather-like sheet with an excellent compactness. A nonwoven fabric containing ultra-fine fibers, characterized in that it contains staple fibers with a fiber fineness of 0.0001 to 0.5 decitex and a fiber length of 10 cm or less, and has a weight per unit area of 100 to 550 g/m2, an apparent density of 0.280 to 0.700 g/cm3, a tensile strength of 70 N/cm or more, and a tear strength of 3 to 50 N.
    Type: Grant
    Filed: July 7, 2004
    Date of Patent: August 16, 2011
    Assignee: Toray Industries, Inc.
    Inventors: Tomoyuki Horiguchi, Kyoko Yokoi, Kentaro Kajiwara
  • Publication number: 20110126388
    Abstract: A laminate (6) is prepared by superposing a fibrous web (1a), (1b) containing fibers comprising polyethylene terephthalate on one side or both sides of a net-form sheet (4); water needling the fibrous web (1a), (1b) to entangle the fibers of the fibrous web (1a), (1b) with each other, and also to entangle the fibers of the fibrous web (1a), (1b) with the net-form sheet (4); and then, blowing hot air having a temperature above the glass transition temperature (Tg (° C.)) of the polyethylene terephthalate and below “Tg (° C.)+70° C.” to the laminate (6) by through-air technique. Preferably, after preparing the laminate (6) by entangling the fibers of the fibrous web(s) (1a), (1b) with the net-form sheet (4), the laminate (6) is dried with hot air; and then hot air is blown to the laminate (6) by through-air technique.
    Type: Application
    Filed: May 25, 2009
    Publication date: June 2, 2011
    Applicant: KAO CORPORATION
    Inventors: Keima Takabayashi, Minoru Wada, Kazutoshi Ootsuka
  • Publication number: 20110083305
    Abstract: Method of making a carbon-carbon composite brake disc or pad by: needling a plurality of layers of fibrous fabric segments to one another to form a brake disc or pad preform; carbonizing the fibrous preform to provide a carbon fiber brake disc or pad preform having a fiber volume fraction in the range 17% to 30% in the brake disc or pad preform; densifying the resulting carbonized needled fibrous fabric preform with pitch (isotropic or anisotropic) or with pitch and CVD/CVI; carbonizing the resulting pitch-infiltrated carbon fiber disk to carbonize the pitch therein; heat-treating the resulting pitch-densified carbon brake disc or pad; and subjecting the carbon brake disc or pad to a final cycle of CVD/CVI processing in order to produce a carbon-carbon composite brake disc or pad having a density of at least 1.70 g/cc and having a uniform through-thickness density.
    Type: Application
    Filed: October 9, 2009
    Publication date: April 14, 2011
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Mark L. LA FOREST, Mark Criss James, Neil Murdie
  • Patent number: 7845055
    Abstract: A method and apparatus for manufacturing absorbent tampons with reduced fiber fluff includes a novel needlepunching unit. The method includes the steps of providing a continuous nonwoven fibrous web; separating individual nonwoven web sections from the continuous nonwoven fibrous web; forming distinct side edges of each individual nonwoven web section; rolling the nonwoven web section to form a substantially cylindrical tampon blank; and compressing the substantially cylindrical tampon blank to form the absorbent tampon. The distinct side edges of each individual nonwoven web section are formed by needlepunching proximate the longitudinal side edges of each individual nonwoven web section, folding both longitudinal side edges inwardly to form distinct side edges of the individual nonwoven web section, and needlepunching the folded longitudinal side edges to stabilize the distinct side edges of the individual nonwoven web section.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: December 7, 2010
    Assignee: McNeil-PPC, Inc.
    Inventors: David L. Kimball, Anthony C. Lalama
  • Patent number: 7802529
    Abstract: A process is described for treating a nonwoven fabric to improve the gripping ability of the fabric during the preparation of tufted carpets. The process includes the steps of applying an elastomeric binder to the fabric, treating the fabric to provide a series of depressions or holes in a pattern consistent with the tufting needle pattern to be subsequently applied, and then curing the binder. The resultant fabric has a pattern of holes or depressions which are essentially free of binder with excess binder squeezed from the depressions forming rings around the depressions. When the tufting needle is inserted into the depression or hole, the elastomeric ring surrounding the hole expands. Upon retraction of the needle, the elastomeric ring contracts and exerts a firm grip on the tuft in the hole.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: September 28, 2010
    Assignee: Johns Manville
    Inventors: ChangQing Shen, Lester M. Aseere
  • Publication number: 20090217498
    Abstract: A crosslapper receives a card web and folds it into a lap intended to be needle-punched or consolidated by other means. The web comprises zones which are more condensed, having a spectrum of orientation of fibres with a component parallel to the width of the web, alternating with less condensed zones having a longitudinal unidirectional spectrum of orientations. The zones which are less condensed are used to form the edge zones of the lap. The result is that the lap has different respective spectra of orientation which pre-compensate for the unwanted changes produced by the needle-punching or other consolidation which follows. A needle-punched lap is obtained having a uniform MD/CD ratio (relationship between longitudinal and respectively transverse tensile strengths) or having a sought profile of the MD/CD ratio across the width of the lap.
    Type: Application
    Filed: March 6, 2009
    Publication date: September 3, 2009
    Applicant: ASSELIN-THIBEAU
    Inventors: Cathia DOS SANTOS, Michel COLOTTE, Jean-Louis DUPONT, Francois LOUIS
  • Publication number: 20090203280
    Abstract: Methods of making a sheet-form loop product are provided. One method includes placing a layer of staple fibers against a first side of a substrate comprising a nonwoven web; needling fibers of the layer through the substrate by penetrating the substrate with needles that drag portions of the fibers through the substrate, leaving exposed loops of the fibers extending from a second side of the substrate; and anchoring fibers forming the loops by fusing the fibers to each other and to filaments of the nonwoven web on the first side of the substrate, while substantially preventing fusion of the fibers on the second side of the substrate.
    Type: Application
    Filed: June 5, 2008
    Publication date: August 13, 2009
    Applicant: VELCRO INDUSTRIES B.V.
    Inventors: George A. Provost, James R. Barker
  • Publication number: 20090188091
    Abstract: Method for producing Fiber insulation batts suitable for building thermal insulating applications are made using polymer fibers such as PET. A mixture of staple fibers and binder fibers are used to make the batt. The batt has a bulk density of 6-14 kg/m3, a thermal conductivity of 35-50 mW/m-K and a lambda*density value of from 250-550. The batts can be made by forming a web of the fibers, and calibrating and heat-setting the web. The web can be formed using pneumatic or mechanical carding processes. In some processes, the batt can be made by forming a stack of multiple plies of the web and calibrating and heat-setting the stack.
    Type: Application
    Filed: April 26, 2007
    Publication date: July 30, 2009
    Applicant: LIBELTEX BVBA
    Inventors: Jozef Van Kerrebrouck, Marc Cottens
  • Patent number: 7523532
    Abstract: A non-woven acoustic sleeve and method of construction thereof provides routing and protection for elongate members and suppression of noise generation from the elongate members while in the sleeve. The sleeve has an elongate wall with opposite sides that are self-wrapping about a longitudinal axis to define a generally tubular cavity. The opposite sides are extendable away from one another under an externally applied force to allow the elongate members to be disposed radially into or removed from the cavity. When the external force is released, the opposite sides of the wall to return to their self wrapped configuration to enclose the elongate members and suppress noise therefrom.
    Type: Grant
    Filed: April 9, 2007
    Date of Patent: April 28, 2009
    Assignee: Federal Mogul World Wide, Inc.
    Inventors: Hiroki Yamaguchi, Tomonori Inamura, Koushiro Hashimoto
  • Patent number: 7484277
    Abstract: To provide a method of producing a nonwoven fabric for artificial leather and substrate for artificial leather which is capable of providing the substrate for artificial leather having a sufficient shape stability by producing the nonwoven fabric for artificial leather without causing serious damages to the scrim. A method of producing a nonwoven fabric for artificial leather, including a step of entanglement for uniting superposed fiber web and scrim by a needle punching, wherein the needle punching is performed in a manner satisfying the following formulae 1 and 2: S1<2P?S1/cos(D1×(?/180))??(1) S2<2P?S2/cos(D2×(?/180))??(2) wherein S1 is a diameter of warps constituting the scrim, S2 is a diameter of wefts constituting the scrim, D1 is an angle between the warps and barbs which penetrate the scrim, D2 is an angle between the wefts and barbs which penetrate the scrim, and P is a total barb depth of the barbs.
    Type: Grant
    Filed: October 6, 2005
    Date of Patent: February 3, 2009
    Assignee: Kuraray Co., Ltd.
    Inventors: Daisuke Tanaka, Yasuhiro Yoshida, Hisao Yoneda
  • Publication number: 20080305704
    Abstract: Methods of making a sheet-form loop product are provided. One method includes placing a layer of staple fibers against a first side of a substrate comprising a nonwoven web; needling fibers of the layer through the substrate by penetrating the substrate with needles that drag portions of the fibers through the substrate, leaving exposed loops of the fibers extending from a second side of the substrate; and anchoring fibers forming the loops by fusing the fibers to each other and to filaments of the nonwoven web on the first side of the substrate, while substantially preventing fusion of the fibers on the second side of the substrate.
    Type: Application
    Filed: June 5, 2008
    Publication date: December 11, 2008
    Applicant: VELCRO INDUSTRIES B.V.
    Inventors: George A. Provost, James R. Barker
  • Publication number: 20080274658
    Abstract: A composite sheet of a nanoweb bonded to a second web, such that fibers from the second web protrude through the nanoweb in a multiplicity of discontinuous regions.
    Type: Application
    Filed: May 2, 2007
    Publication date: November 6, 2008
    Inventors: Glen E. Simmonds, Anil Kohli
  • Patent number: 7437807
    Abstract: A tufted backing and a method of manufacturing a tufted backing from thermoplastic polymer fibers or filaments that are processed to yield a spunbonded nonwoven are described, the spunbonded nonwoven containing only fibers or filaments having a titer of 1 to 15 dtex, the mass per unit area of the tufted backing being 70 to 110 g/m2, its density being 0.18 to 0.28 g/cm3 and the 5% modulus value in the machine direction being >60 N/5 cm, but at least 0.6 Nm2/g.
    Type: Grant
    Filed: February 12, 2002
    Date of Patent: October 21, 2008
    Assignee: Firma Carl Freusenberg KG
    Inventors: Rudolf Gärtner, Peter Sander, Detlef Barbier, Ulrike Maaβ, Engelbert Löcher, Ararad Emirze, Klaus Klein, Christine König
  • Patent number: 7412756
    Abstract: A process for preparing a complex sheet including a layer of drylaid glass fibers and a layer of organic fibers. The process includes mechanical needling or fluid entanglement, e.g. hydroentanglement, of a nonwoven fabric of continuous organic fibers and of a veil of non-preconsolidated continuous glass fibers, the nonwoven fabric of organic fibers and the veil of glass fibers being juxtaposed and needles being sent from the same side as the nonwoven fabric of organic fibers, to make a sheet, and then application of a binder to the bilayer. The so obtained complex fibrous structure shows a low tendency to delaminate and can be impregnated with asphalt or bitumen, and can be used in the field of roofing, sealing covering, or membranes.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: August 19, 2008
    Assignee: Saint-Gobain Vetrotex France S.A.
    Inventors: Michel Droux, Marc Berkhoff, Leonardus Lucas, Eric Daniel
  • Patent number: 7392575
    Abstract: The invention concerns a machine for producing a nonwoven fabric comprising a conveyor for transmitting a mat to means designed to compact same in thickness and means designed to reduce the speed of the web while it is being compacted, by the compacting means, thereby obtaining an enhanced ratio of properties lengthwise relative to crosswise properties.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: July 1, 2008
    Assignee: Rieter Perfojet
    Inventor: Frédéric Noelle
  • Patent number: 7387758
    Abstract: A ceramic article having improved interlaminar strength and a method of forming the article. The article may be a ceramic matrix composite article. The methods of forming the articles increase the interlaminar strength of the article by forming indentations in the article during processing. The indentations may be tabs that are formed such that they provide one or more beneficial features for ceramic articles, such as CMC articles and hybrid structures. The tabs may be any of a variety of shapes, orientations, spacings, and combinations. In an alternative embodiment, the indentations are formed by pulling one or more fibers from one side of the ceramic layer to the other side. The articles have increased surface area, which helps to increase the bonding strength between the ceramic layer and any thermal barrier coating layer and/or ceramic core in the ceramic article.
    Type: Grant
    Filed: February 16, 2005
    Date of Patent: June 17, 2008
    Assignee: Siemens Power Generation, Inc.
    Inventors: Gary B. Merrill, Jay A. Morrison
  • Publication number: 20070266534
    Abstract: A process is described for treating a nonwoven fabric to improve the gripping ability of the fabric during the preparation of tufted carpets. The process includes the steps of applying an elastomeric binder to the fabric, treating the fabric to provide a series of depressions or holes in a pattern consistent with the tufting needle pattern to be subsequently applied, and then curing the binder. The resultant fabric has a pattern of holes or depressions which are essentially free of binder with excess binder squeezed from the depressions forming rings around the depressions. When the tufting needle is inserted into the depression or hole, the elastomeric ring surrounding the hole expands. Upon retraction of the needle, the elastomeric ring contracts and exerts a firm grip on the tuft in the hole.
    Type: Application
    Filed: May 16, 2006
    Publication date: November 22, 2007
    Inventors: ChangQing Shen, Lester M. Aseere
  • Patent number: 7210206
    Abstract: A method for the manufacture of a reinforced gel-forming fabric composite comprising a reinforcing layer and gel-forming fibre material is characterized in that the gel-forming fibre material in non-woven fabric form is needled into the reinforcing layer from one side so as to penetrate through the reinforcing layer and form a layer of gel-forming fibre material on both sides of the reinforcing layer. The resulting fabric finds use in a wound dressing.
    Type: Grant
    Filed: October 10, 2002
    Date of Patent: May 1, 2007
    Assignee: Convatec Limited
    Inventor: Paul John Ferguson
  • Patent number: 7131171
    Abstract: A method for restoring bulkiness of nonwoven fabric which contains crimped thermoplastic fiber and is in a roll form is disclosed. The method comprises unwinding the nonwoven fabric from the stock roll, and blowing hot air to the unwound nonwoven fabric by a through-air technique to make the nonwoven fabric increase in bulkiness. The hot air is heated at a temperature lower than the melting point of the thermoplastic fiber and not lower than a temperature lower than that melting point by about 50° C., and is blown for about 0.05 to 3 seconds.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: November 7, 2006
    Assignee: Kao Corporation
    Inventors: Takanobu Miyamoto, Wataru Saka, Yasuhiro Komori, Koji Asano, Manabu Kaneta
  • Patent number: 7100253
    Abstract: A method and an apparatus for producing mop trimmings from a twisted yarn (7) which is cut into pieces is described. In order to prevent any untwisting of the yarn pieces it is proposed that the twisted yarn (7) is subjected to a needling prior to cutting.
    Type: Grant
    Filed: June 12, 2001
    Date of Patent: September 5, 2006
    Inventor: Monika Fehrer
  • Patent number: 7065844
    Abstract: There is described a process for producing a cover for a side airbag, which comprises first producing a polyester web, preconsolidating this web by needling and end-consolidating and fully shrinking the thus preconsolidated web by means of an embossing calender, making the thus consolidated and fully shrunk web up into a cover and providing the cover with a predetermined breaking site to tear open the cover in the event of a collision. The process is simple to carry out and leads to inexpensive covers having improved properties.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: June 27, 2006
    Assignee: Johns Manville
    Inventor: Kurt Plötz
  • Patent number: 6839945
    Abstract: The invention relates to a method for preparing a moisture barrier fabric comprising needing the fabric in a direction substantially opposite to the advance direction of the fabric with barbed needles to increase the density of the fabric by entangling the fibers thereof, open-width washing of the needled facecloth fabric with a detergent and sodium carbonate to further increase fabric density by allowing the fabric to neck down or bulk at a substantially random rate, coating one side of the fabric with at least one coating of a latex formulation for use in forming the backcoating of the moisture barrier fabric, comprising a (meth)acrylic acid urethane copolymer having a curing temperature of approximately 250 to 275° F., and immersing the dry moisture barrier fabric, including the latex backing, into a bath of fluorochemical and solution containing about 10 to about 15 wt % polyurethane, and removing excess fluorochemical from the treated fabric.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: January 11, 2005
    Assignee: Chatham, Inc.
    Inventors: Jeffrey D. Irwin, Christopher M. Harmon, Steven D. Daniels
  • Publication number: 20040116026
    Abstract: A resin charged media can be a single or layered construction needled together to provide a graded-density structure of fine fibers intermixed with finer fibers. This resulting media possesses a higher particulate loading retention capability, particularly early in the filtration cycle, relative to other cellulose, spun-bonds, or other similar materials commonly applied to filtration applications where filtration is predominantly a surface-loading phenomenon. The filtration media provides for depth filtration with the multi-layered needled layers, thereby enhancing the overall particulate-holding capacity of the charged media. This results in more resistance to fine particulates and improvements in efficiency due to increased sub-micron particle loading. With the filter media consisting of a graded structure, surface loading phenomenon can be reduced and filter life improved. Since the layers in the media are physically combined using needling technology, they will not separate.
    Type: Application
    Filed: December 5, 2003
    Publication date: June 17, 2004
    Applicant: Filter Materials, Inc.
    Inventors: Don A. Kubose, Jin Young Choi, James T. Greene
  • Patent number: 6750166
    Abstract: Disclosed is a method for producing a non-woven fiber fabric comprising a plurality of perforated structures extending along the entire cross-section of said fabric. The inventive method consists of the following steps: in a first step, the matted fibers are placed on a belt screen to form a web of fibers; in a second step, the web of fibers is conveyed to a perforated-structure manufacturing unit, in a third step, the perforated structures are manufactured by mechanically impinging upon the fibers, whereby the mechanical impingement upon said fibers does not affect the mechanical and chemical structure thereof; and in a fourth step, the web of fibers provided with said perforated structures is compacted in a compaction unit for form a non-woven fabric.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: June 15, 2004
    Assignee: Corovin GmbH
    Inventors: Stefan Etzold, Joachim Bauer
  • Patent number: 6726976
    Abstract: A concentrate of binder at the tufts produces a lighter and more flexible carpet, which allows for direct attachment of hook-and-loop means on the carpet backing. Thermoplastic binder yarns are pinned by the pile yarns against the primary backing. Subsequent application of heat melts the binder yarns and fuses the tufts and primary backing together. An alternate embodiment uses highly shrinkable binder sheet placed over the backing before tufting, instead of the binder yarns.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: April 27, 2004
    Assignee: E.I. du Pont de Nemours and Company
    Inventor: Zafiroglu P. Dimitri
  • Patent number: 6642160
    Abstract: A loop material of a hook-and-loop fastener, comprised of a nonwoven base and a number of loops which are formed at least on one plane side of the nonwoven base. The nonwoven base is formed by accumulating a number of filaments or fibers. An antislipping agent is deposited at least on the surface of the loops, thereby the surface of the loops become uneven. Or, by deformation on the surface of the loops due to thermal plasticity, the surface of the loops become uneven. Due to this unevenness, projections of the hook material are difficult to get out of the loops and a hook-and-loop fastener having high joining strength is obtained.
    Type: Grant
    Filed: March 5, 1998
    Date of Patent: November 4, 2003
    Assignee: Unitika Ltd.
    Inventor: Tohru Takahashi
  • Patent number: 6634069
    Abstract: In an apparatus for feeding a fiber fleece web to a needling machine, a compacting means is arranged between a pre-compressor and a supply roller pair, said compacting means having rollers provided with teeth at their circumference. These rollers compress the fiber fleece and effect a partial re-orientation of the fibers from the horizontal into the vertical, which contributes to substantially maintaining the compacting of the fiber fleece. The compacting means may together with the supply roller pair form a drawing zone for the fiber fleece web. The compacting means preferably includes at least one roller triple that consists of two lower rollers arranged at a low mutual distance in juxtaposition, and upper rollers bridging over the gusset between the lower rollers. The rollers of the roller triple are provided on their periphery with all-steel armaments, and the supply rollers are preferably also provided with all-steel armaments and have higher speeds of rotation than the rollers of the roller triple.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: October 21, 2003
    Assignee: Oskar Dilo Maschinenfabrik KG
    Inventors: Johann Philipp Dilo, Eugen Gutsche
  • Patent number: 6579396
    Abstract: A durable, low-density, high performance insulating material is suitable for use as a high temperature thermal and acoustic insulation. The insulation includes fiber batting made with non-thermoplastic fibers or blends of fibers such as aramid fibers and ceramic fibers, which are bound within at least some interstices by high temperature non-flammable thermoplastic binder such as polyphenylene sulfide. In addition, a fireblocking layer can be provided on at least one surface of the insulation to further improve fire ablation or flame retardance.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: June 17, 2003
    Assignee: Tex Tech Industries, Inc.
    Inventor: David F. Erb, Jr.