Twist Setting Patents (Class 57/282)
  • Publication number: 20140378597
    Abstract: An elongated steel element adapted for the reinforcement of rubber products is covered with a ternary or quaternary alloy coating of copper-M-zinc. M is one or two metals selected from the group consisting of cobalt, nickel, tin, indium, manganese, iron, bismuth and molybdenum. The copper content inside the coating ranges from 58 weight percent to 75 weight percent, the content of said one or two metals inside the coating ranges from 0.5 weight percent to 10 weight percent, the remainder is zinc and unavoidable impurities. The one or two metals are present throughout the coating. The phosphorus is present on and/or in the coating in an amount ranging from 0.3 milligram per square meter to 1 milligram per square meter of the coating. The coating further lacks triazole residues. Good results for under cure adhesion have been obtained. Furthermore, a corresponding method for manufacturing such an elongated steel element is disclosed.
    Type: Application
    Filed: July 24, 2012
    Publication date: December 25, 2014
    Inventors: Guy Buytaert, Dieter Wemel, Patricia Reis
  • Publication number: 20140238524
    Abstract: A hybrid cord formed from a plurality of component plies wherein at least one of the plies has a length that is from 1 to 50 percent longer than the other plies and a method of providing a cord with predetermined twist and component ply lengths.
    Type: Application
    Filed: February 27, 2013
    Publication date: August 28, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Nathan W. Love, Brain R. France, Mark Allan Lamontia, Clifford K. Deakyne
  • Patent number: 8578693
    Abstract: The invention relates to a process for making a polyolefin fiber. The process comprises the steps of providing at least one polyolefin tape; twisting or folding the at least one polyolefin tape longitudinally to obtain a precursor fiber and exposing the precursor fiber under tension to a temperature within the melting point range of the polyolefin for a time sufficient to at least partly two or more parts of the precursor fiber. The invention also relates to the fiber obtainable thereby.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: November 12, 2013
    Assignee: DSM IP Assets B.V.
    Inventor: Roelof R. Marissen
  • Patent number: 8528310
    Abstract: Included are close-couple twisting and heat-setting apparatus, methods of twisting two or more yarns and heat-setting twisted yarn. The apparatus and methods described permit operation at twisting speeds of about 10,000 to 100,000 rpm. In the event that yarn twisting is interrupted, and accumulating system is also included to prevent interruption of heat-setting the twisted yarn. The apparatus and methods are useful in the accelerated production of yarns suitable for soft floor coverings.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: September 10, 2013
    Assignee: Invista North America S.ár.l.
    Inventors: Peter Ganahl, Ronnie Rittenhouse
  • Patent number: 7997055
    Abstract: Method for thermal treatment of a running yarn (14) on a multi-workstation twisting machine, each station having a device (1) for thermal treatment of the yarn, and a delivery system (2, 3) preceding or following such device (1). The yarn (14) passes through the device (1) substantially without tension, and after passing the downstream delivery system (3), is wound. The yarn (14) is loaded with a defined force by position-variable means (24, 25, 27). Position changes of such means caused by a change in the yarn tension under disruptive influences during the thermal treatment of the yarn (14) are used as a control variable for controlling at least one of the delivery systems (2, 3).
    Type: Grant
    Filed: July 18, 2007
    Date of Patent: August 16, 2011
    Assignee: Oerlikon Textile GmbH & Co KG
    Inventor: Siegfried Brenk
  • Patent number: 7914592
    Abstract: The present invention relates to the production of textiles and more particularly pertains to a method for manufacturing cotton towels comprising the steps of: combining a yarn of 120S combed long staple cotton and a yarn of 10S combed long staple cotton by means of a double winder and winding onto a bobbin or bobbins after combining; feeding the bobbin or bobbins of the combined yarn into a double twister for plying; winding the plied yarn onto a bobbin and weaving into greige; impregnating the greige in the solution of a combined desizing, scouring and bleaching machine to be soaked and steamed for removing the sizes and the impurities in the cotton yarn; treating the greige by means of deoxidization, dyeing, enzymatic desizing, softening, relaxation drying and sewing into towels. The present invention adopts the 120S combed long staple cotton for plying which achieves a definitive binding effect on the loosened fibers on the surfaces of the yarn, thereby forming fewer fluffs on the surfaces of the towel.
    Type: Grant
    Filed: July 28, 2008
    Date of Patent: March 29, 2011
    Inventor: Rigui Sun
  • Publication number: 20110039055
    Abstract: A substrate for artificial leather comprising a nonwoven fabric of bundles of microfine filaments. The substrate for artificial leather simultaneously satisfies the following requirements 1 to 4: (1) the bundle of microfine filaments comprises 8 to 70 microfine filaments having a cross-sectional shape of nearly circle; (2) the bundle of microfine filaments has a cross-sectional area of 170 to 700 ?m2 and a flatness of 4.0 or less; (3) on a cross section parallel to a thickness direction of the nonwoven fabric body, cross sections of the microfine fiber bundles exist in a density of 1500 to 3000/mm2; and (4) on a cross section parallel to a thickness direction of the nonwoven fabric body, gaps between the microfine fiber bundles have a size of 70 ?m or less. By satisfying the requirements, the substrate for artificial leather combines high level of sensuous qualities and high level of physical properties which have been considered to be mutually exclusive.
    Type: Application
    Filed: June 25, 2008
    Publication date: February 17, 2011
    Applicant: KURARAY CO., LTD.
    Inventors: Michinori Fujisawa, Jiro Tanaka, Norio Makiyama, Yoshiyuki Ando, Yoshiki Nobuto
  • Publication number: 20100319313
    Abstract: The PTFE real twist yarn of the present invention is a PTFE real twist yarn obtained by twisting a polytetrafluoroethylene (PTFE) multi-filament slit yarn. The yarn has a circular cross-section with a circularity in the range of 10/8 to 10/10, where the circularity is expressed by the ratio between the major axis width and the minor axis width, the average fineness of filaments is in the range of 1.5 to 200 dtex, a fineness D is in the range of 50 to 6000 dtex, and a twist coefficient K expressed by Formula (1) is in the range of 10000 to 35000: twist coefficient K=number of twists T×(the fineness D of the PTFE real twist yarn)1/2??(1) where the number of twists T denotes the number of twists per meter and the fineness D is a total fineness.
    Type: Application
    Filed: June 14, 2010
    Publication date: December 23, 2010
    Applicant: YEU MING TAI CHEMICAL INDUSTRIAL CO., LTD.
    Inventors: James HUANG, Chin-Chun CHOU, Chin-Cha CHOU, Wen-I KUO
  • Patent number: 7810308
    Abstract: The invention relates to a method for producing a towel, specifically a low twist towel, comprising the following steps: Z twisting a thick yarn and separately Z twisting a fine count yarn; unevenly S twisting the Z-twisted yarns to make the volume of the thick yarn more than that of the fine count; weaving the yarn to produce a fabric; processing the fabric with hot water to reduce inner tension in the yarn and make the fabric become fluffy. Fabric produced by this method can solve the dependency on PVA, reduce energy consumption and material consumption, and prevent water pollution. This method for producing a low twist towel is environmentally friendly, healthy, and energy saving.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: October 12, 2010
    Assignee: Loftex USA LLC
    Inventor: Hongxing Wang
  • Publication number: 20100242253
    Abstract: A woven panel is formed from at least one first polymer yarn and at least one second polymer yarn wherein the second polymer yarn has a core. The core yarns provide mechanical strength for the woven material in supporting the coreless yarns when used in load bearing articles such as the seat or back portions of an article of furniture.
    Type: Application
    Filed: April 20, 2010
    Publication date: September 30, 2010
    Applicant: Casual Living Worldwide, Inc. d/b/a BJI, Inc.
    Inventors: Larry Schwartz, Coley Chris Mathis
  • Publication number: 20100043382
    Abstract: Cut resistant yarn containing at least one single yarn, the single yarn containing high performance filaments and/or high performance staple fibers, characterized in that the single yarn containing the high performance filaments and/or the high performance staple fibers has a free volume of at least 15%. The yarn is suited for the production of protective garment, like gloves etc.
    Type: Application
    Filed: May 30, 2007
    Publication date: February 25, 2010
    Applicant: DSM IP ASSETS B.V.
    Inventors: Johannes Elizabeth Adrianus J.E.A. Kriele, Giovanni Joseph Ida G.J.I. Henssen, Elisabeth E. Müller
  • Publication number: 20090286081
    Abstract: A system to form smooth synthetic wicker yarn. The smooth synthetic wicker yarn is then reprocessed to form a naturally looking and feeling wicker yarn. In one aspect, a pair of top and bottom brushes with bristles score simultaneously a plurality of irregular hair lines in the circumferential outer surface of the smooth synthetic wicker yarn to texture the smooth synthetic wicker yarn to have a natural wicker appearance.
    Type: Application
    Filed: May 15, 2008
    Publication date: November 19, 2009
    Inventor: Jingming Ji
  • Patent number: 7584596
    Abstract: A method of manufacturing autohesion thread such that a smooth surface is offered, the cutting thereof is easy, filaments composing thread are not frayed in cutting, drainability is superior, and plural kinds of filaments can be combined. A method of manufacturing a line of fusion thread, wherein plural filaments comprising thermoplastic resin are paralleled, twisted and/or braided if desired, subsequently drawn under heat at a draw ratio of less than 1.0 to thereby substantially fuse the adjacent filaments, and thereafter drawn under heat at a draw ratio of more than 1.0.
    Type: Grant
    Filed: January 13, 2006
    Date of Patent: September 8, 2009
    Assignee: Yoz-Ami Corporation
    Inventor: Shigeru Nakanishi
  • Patent number: 7552580
    Abstract: A method of producing a high quality of yarn by an iron-heating apparatus, including the steps of: guiding a yarn to pass between upper and lower rollers, wherein the yarn is exited at a front nip in a twisting triangle area; guiding the yarn to enter to a groove of a heating main body of the iron-heating apparatus; heating the yarn along the groove to reduce a rigidity of the yarn so as to allow the yarn to be easily twisted to form an improved yarn with high quality; and enwrapping the improved yarn on a spun yarn tube. In addition, a counter frictional force is applied at the yarn through walls of the groove such that fiber on a surface of the yarn is further twisted to the yarn for minimizing hairiness.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: June 30, 2009
    Assignee: Wuhan University of Science & Engineering
    Inventors: Weilin Xu, Zhigang Xia, Wenxiang Ye, Weigang Cui, Wenbin Li, Shangyong Zhang
  • Publication number: 20090139601
    Abstract: A functional elastic composite yarn comprises an elastic member that is surrounded by at least one functional covering filament(s). The functional covering filament has a length that is greater than the drafted length of the elastic member such that substantially all of an elongating stress imposed on the composite yarn is carried by the elastic member. The elastic composite yarn may further include an optional stress-bearing member surrounding the elastic member and the functional covering filament.
    Type: Application
    Filed: November 8, 2005
    Publication date: June 4, 2009
    Applicant: TEXTRONICS, INC.
    Inventors: Eleni Karayianni, George W. Coulston, Stacey B. Burr, Thomas A. Micka
  • Publication number: 20090007538
    Abstract: The present invention relates to a machine, a system, and textiles resulting from an industrially produced yarn, created through the incorporation of a linear false twisting device and two lappets positioned to affect a yarn during drafting. The invention results in a yarn having a low twist multiplier. The textiles products created from the produced yarn exhibit a soft feel without requiring the use of chemical treatments.
    Type: Application
    Filed: July 2, 2007
    Publication date: January 8, 2009
    Applicants: The Hong Kong Polytechnic University
    Inventors: Chi Ping Cheng, Allan Ki Luk Chick, Xiao-ming Tao
  • Patent number: 7337555
    Abstract: Provided is a method for manufacturing a regenerated collagen fiber and a drying apparatus therefor in a manufacturing process of a head decorating regenerated collagen fiber, the method enabling suppression of fluff (fiber breakage) and process trouble and providing outstanding curl retentive property and little hackling loss.
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: March 4, 2008
    Assignee: Kaneka Corporation
    Inventors: Kyoji Uku, Yoshihisa Dohno, Kouji Ono
  • Patent number: 7155893
    Abstract: The present invention relates to a method for producing a heat-resistant crimped yarn comprising: twisting yarn of a heat-resistant high functional fiber; twist-setting this twisted yarn by heat treatment; and untwisting this twist-set yarn, wherein a snarl value of the twist-set yarn is not more than 6.5.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: January 2, 2007
    Assignees: Du Pont-Toray Co., Ltd., Tokai Senko K.K.
    Inventors: Takeshi Hatano, Kazuhiko Kosuge, Mitsuhiko Tanahashi, Iori Nakabayashi, Taku Konaka, Takahiro Ito, Minoru Yamada
  • Patent number: 6921803
    Abstract: A process for preparing poly(trimethylene terephthalate) fibers comprising (a) providing a poly(trimethylene terephthalate) composition comprising about 0.05 to about 5 mole % tetramethylene terephthalate repeat units and (b) spinning the polymer composition to form fibers. Poly(trimethylene terephthalate) fiber comprising poly(trimethylene terephthalate) composition comprising about 0.05 to about 5 mole % tetramethylene terephthalate repeat units, as well as yarns, fabrics (e.g., woven, knitted, and nonwoven fabrics) and carpets. A poly(trimethylene terephthalate) composition comprising about 0.05 to about 5 mole % tetramethylene terephthalate repeat units.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: July 26, 2005
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Jing C. Chang, Joseph V. Kurian
  • Patent number: 6848248
    Abstract: An article of furniture is made from elongated polymer filaments. The polymer filaments may be monofilaments or plural filaments which are twisted together and heat set to prevent their untwisting during the subsequent weaving process. The heat setting of the polymer filaments is achieved by heating the polymer material either before or after the twisting process.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: February 1, 2005
    Assignee: Sun Isle Casual Furniture, LLC
    Inventor: Larry Schwartz
  • Publication number: 20040123580
    Abstract: An article of furniture is made from elongated polymer filaments. The polymer filaments may be monofilaments or plural filaments which are twisted together and heat set to prevent their untwisting during the subsequent weaving process. The heat setting of the polymer filaments is achieved by heating the polymer material either before or after the twisting process.
    Type: Application
    Filed: December 9, 2003
    Publication date: July 1, 2004
    Applicant: Sun Isle Casual Furniture, LLC
    Inventor: Larry Schwartz
  • Patent number: 6725640
    Abstract: An article of furniture is made from elongated polymer filaments. The polymer filaments may be monofilaments or plural filaments which are twisted together and heat set to prevent their untwisting during the subsequent weaving process. The heat setting of the polymer filaments is achieved by heating the polymer material either before or after the twisting process.
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: April 27, 2004
    Assignee: Sun Isle Casual Furniture, LLC
    Inventor: Larry Schwartz
  • Patent number: 6705070
    Abstract: An article of furniture is made from elongated polymer filaments. The polymer filaments may be monofilaments or plural filaments which are twisted together and heat set to prevent their untwisting during the subsequent weaving process. The heat setting of the polymer filaments is achieved by heating the polymer material either before or after the twisting process.
    Type: Grant
    Filed: February 11, 2002
    Date of Patent: March 16, 2004
    Assignee: Sun Isle Casual Furniture, LLC
    Inventor: Larry Schwartz
  • Publication number: 20040009352
    Abstract: A process for preparing poly(trimethylene terephthalate) fibers comprising (a) providing a poly(trimethylene terephthalate) composition comprising about 0.05 to about 5 mole % tetramethylene terephthalate repeat units and (b) spinning the polymer composition to form fibers. Poly(trimethylene terephthalate) fiber comprising poly(trimethylene terephthalate) composition comprising about 0.05 to about 5 mole % tetramethylene terephthalate repeat units, as well as yarns, fabrics (e.g., woven, knitted, and nonwoven fabrics) and carpets. A poly(trimethylene terephthalate) composition comprising about 0.05 to about 5 mole % tetramethylene terephthalate repeat units.
    Type: Application
    Filed: July 11, 2002
    Publication date: January 15, 2004
    Inventors: Jing C. Chang, Joseph V. Kurian
  • Patent number: 6631609
    Abstract: A method for producing a cable or cable element from individual elements is provided. The method comprises heating the individual elements before or during a stranding process until they are at least close to plastification and cooling the individual elements to a solidification temperature of a plastic. A cable or cable element comprising individual elements that are twisted together to form the cable is also disclosed. The individual elements are heated either before or during a stranding process until they are at least close to plastification, and are subsequently cooled to a solidification temperature of the plastic until they leave a stranding machine. A stranding device for the production of a cable or cable element from individual elements is also disclosed. The stranding device comprises a heating device which acts on the individual elements and a cooling device located downstream of the heating device in a direction of processing.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: October 14, 2003
    Assignee: Drahtseilerei Gustav Kocks GmbH & Co.
    Inventor: Wolfgang Scheunemann
  • Patent number: 6625970
    Abstract: An article of furniture is made from elongated polymer filaments which are attached and woven onto a frame forming woven panels. Subsequent to the weaving and attachment process, the completed article is placed in an oven to heat set the resulting woven material. The polymer filaments may be monofilaments or plural filaments which are twisted together and then heat set to prevent their untwisting during the subsequent weaving process. The heat setting of the polymer filaments is achieved by heating to about the softening temperature or above of the polymer material.
    Type: Grant
    Filed: January 31, 2002
    Date of Patent: September 30, 2003
    Assignee: Sun Isle Casual Furniture, LLC
    Inventor: Larry Schwartz
  • Patent number: 6581365
    Abstract: Twist control system and method for controlling twisting distortion in a beam caused by temperature changes. In a beam having an inherent amount of temperature induced twisting a wrap can be helically bonded to the beam. The wrap has a wrap material type, a wrap cross-sectional profile, and a wrap angle that can be selectively chosen for providing a desired twist control of the beam. The twist control applies a twisting force to the beam which is approximately proportional to the temperature change. The twist control can be used to eliminate the thermally induced twist associated with a particular beam or for providing a desired amount of twist.
    Type: Grant
    Filed: December 7, 2001
    Date of Patent: June 24, 2003
    Assignee: Harris Corporation
    Inventor: Dennis V. Calhoun
  • Publication number: 20030101708
    Abstract: An article of furniture is made from elongated polymer filaments. The polymer filaments may be monofilaments or plural filaments which are twisted together and heat set to prevent their untwisting during the subsequent weaving process. The heat setting of the polymer filaments is achieved by heating the polymer material either before or after the twisting process.
    Type: Application
    Filed: April 17, 2002
    Publication date: June 5, 2003
    Applicant: Sun Isle Casual Furniture, LLC
    Inventor: Larry Schwartz
  • Publication number: 20030101707
    Abstract: An article of furniture is made from elongated polymer filaments which are attached and woven onto a frame forming woven panels. Subsequent to the weaving and attachment process, the completed article is placed in an oven to heat set the resulting woven material. The polymer filaments may be monofilaments or plural filaments which are twisted together and then heat set to prevent their untwisting during the subsequent weaving process. The heat setting of the polymer filaments is achieved by heating to about the softening temperature or above of the polymer material.
    Type: Application
    Filed: January 31, 2002
    Publication date: June 5, 2003
    Inventor: Larry Schwartz
  • Publication number: 20020144497
    Abstract: A method for producing a cable or cable element from individual elements is provided. The method comprises heating the individual elements before or during a stranding process until they are at least close to plastification and cooling the individual elements to a solidification temperature of a plastic. A cable or cable element comprising individual elements that are twisted together to form the cable is also disclosed. The individual elements are heated either before or during a stranding process until they are at least close to plastification, and are subsequently cooled to a solidification temperature of the plastic until they leave a stranding machine. A stranding device for the production of a cable or cable element from individual elements is also disclosed. The stranding device comprises a heating device which acts on the individual elements and a cooling device located downstream of the heating device in a direction of processing.
    Type: Application
    Filed: May 28, 2002
    Publication date: October 10, 2002
    Inventor: Wolfgang Scheunemann
  • Patent number: 6430912
    Abstract: A yarn false twist texturing apparatus having a plurality of side by side processing stations for texturing a plurality of thermoplastic yarns, wherein at each station a first feed system withdraws the yarn from a feed yarn package, and advances the yarn to a false twist zone composed of a heater and a cooling device, as well as a twisting unit. A second feed system withdraws the yarn from the false twist zone and advances it to a takeup device. The cooling device includes a cooling tube, with the yarn spiraling in contact with its outer surface. For an intensive cooling of the yarn according to the invention, the cooling tube is cooled from the inside with a coolant flow, which flows in a direction opposite to the direction of the advancing yarn.
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: August 13, 2002
    Assignee: Barmag AG
    Inventors: Friedhelm Lenz, Hellmut Lorenz
  • Patent number: 6345491
    Abstract: An apparatus for inserting twist into a moving strand, including a first body including an orifice extending therethrough for permitting passage of a moving yarn. An air channel extends therethrough and communicates with the orifice. The air channel communicates with the orifice at a tangentially-offset angle to the path of the yarn through the orifice to create a cyclonic air circulation pattern in the orifice to insert a predetermined direction of twist into the yarn as the yarn passes through the orifice. The first body is adapted for being inverted relative to, and placed in overlying registration with, a second like body whereby the air channel of the first body inserts one predetermined direction of twist into the yarn and the air channel of the second body inserts another predetermined direction of twist into the yarn.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: February 12, 2002
    Assignee: Belmont Textile Machinery Co., Inc.
    Inventors: Kevin E. Moran, Kurt Willy Niederer, Robert Edward Taylor, Ralph Samuel Jenkins, Jeffrey Todd Rhyne
  • Publication number: 20010030378
    Abstract: A stable partially oriented poly(trimethylene terephthalate) yarn suitable for use in subsequent drawing and/or draw-texturing operations characterized by an elongation to break of at least 110%, and a process for false-twist texturing a partially oriented poly(trimethylene terephthalate) yarn are disclosed.
    Type: Application
    Filed: February 28, 2001
    Publication date: October 18, 2001
    Inventors: James M. Howell, Joe F. London, Michelle H. Watkins
  • Patent number: 6279307
    Abstract: The present invention introduces a yarn y that is unwound from a supply bobbin 1 into a control member 3 for controlling the propagation of twisting toward a supply bobbin, then introduces the yarn into a friction-disk-type false twister 4 to suppress fluff, and finally controls the yarn feeding speed in the friction-disk-type false twister in order to control the yarn tension. The present invention can reduce the amount of fluff on a yarn that is unwound from a supply bobbin and wound around a winding package and control the yarn tension. Therefore, the present invention eliminates the needs for a special device for controlling the tension.
    Type: Grant
    Filed: April 22, 1999
    Date of Patent: August 28, 2001
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Fumiaki Nakaji, Tomonari Ikemoto
  • Patent number: 6138448
    Abstract: To provide a yarn heating apparatus offering greater heating efficiency and ease of manufacture than a conventional yarn heating apparatus. Provide two heating spaces for yarn, and make the middle heating part 13a between these two heating spaces 10a, 10b detachable. By doing this, yarn can be heated sufficiently and the heating unit can be manufactured more easily. Place heating units 17, 17 on both side of the heating space 10a, 10b through which the two yarns will pass. By doing this, heat is radiated from both sides of the heating space 10a, 10b towards the yarn, heating the entire heating space uniformly. Taper the heating space 10a, 10b towards the yarn inserting port and make the wall facing the heating space 13a, 13b flat. This makes it easier to manufacture the wall.
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: October 31, 2000
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventor: Shigenori Kataoka
  • Patent number: 6089009
    Abstract: A process of producing an assembled yarn, including the steps of providing two or more yarns moving downstream from a supply to a take-up, inserting alternating-direction zones of twist into at least one of the yarns, the at least one yarn having an area of zero twist between said alternating direction zones of twist, combining the at least two yarns to form a single, integrated yarn strand, and intermittently exposing the yarn strand to an air blast to create a zone of intermingled yarns at spaced-apart points along the length of the yarn strand to prevent torsional movement of one yarn relative to the other yarn. According to one preferred embodiment of the invention, the step of exposing the yarn strand to an air blast includes the step of intermingling the yarns at the areas of zero twist.
    Type: Grant
    Filed: April 9, 1998
    Date of Patent: July 18, 2000
    Assignee: Belmont Textile Machinery Co., Inc.
    Inventors: Edward Lowe Hand, deceased, Kurt Willy Niederer, Robert Edward Taylor, Ralph Samuel Jenkins, Jeffrey Todd Rhyne
  • Patent number: 6076345
    Abstract: A method is provided for producing a yarn from at least two individual yarn components having different physical characteristics so that the produced yarn has a desired visual effect. The method includes continuously supplying at least one yarn component in the form of a bundle of continuous filaments and individually treating the bundle of continuous filaments in a treating stage. The treated bundle of continuous filaments is then conveyed to a collective compacting stage. At least one other yarn component is supplied from a spinning beam or a bobbin directly to the collecting compacting stage and the bundle of continuous filaments and at least one other yarn component are compacted collectively in a collective compacting device.
    Type: Grant
    Filed: February 26, 1998
    Date of Patent: June 20, 2000
    Assignee: Maschinenfabrik Rieter AG
    Inventors: Hans-Joachim Weiss, Jorg Maier, Werner Nabulon
  • Patent number: 5985192
    Abstract: The invention relates to a method for the manufacture of screwlike bristles by extruding monofilaments. In order to provide a method with which screwlike bristles can be inexpensively manufactured in the same way as conventional bristles with an identical, predeterminable quality, a monofilament having a non-circular cross-section is extruded and is prestretched after drawing off, accompanied by a reduction in its cross-section, followed by further stretching, twisting to a screwlike bristle material over at least part of its length and then stabilization by shrinkage. It is possible to extrude a monofilament with an oval or polygonal cross-section or having a core and at least one axially parallel rib. According to a further method, at least two monofilaments are prestretched on drawing off, accompanied by a reduction of their cross-section, followed by further stretching, twisting together to give a screwlike bristle material and stabilization by heat shrinkage.
    Type: Grant
    Filed: August 11, 1998
    Date of Patent: November 16, 1999
    Assignee: Coronet-Werke GmbH
    Inventor: Georg Weihrauch
  • Patent number: 5817417
    Abstract: The method for continuous production of a multifilament stretchable weft yarn for tire cord fabric includes swirling polyester-POY-filaments with an initial titre of from 170 to 260 dtex by means of a gas having a pressure of from 0.5 to 3 bar in a swirling nozzle, and immediately thereafter, shrinking with an overfeed of from 40 to 80% at from 220.degree. to 240.degree. C. for at least 0.2 sec to form a stretchable multifilament weft yarn. This weft yarn has a rough surface with non-slip properties, a tenacity of greater than 7 cN/tex, an elongation at break of from 170 to 270% and a thermal shrinkage at 160.degree. C. of from +2% to -2%, measured at 160.degree. C. during 15 minutes at a pretension of 0.1 cN/tex.
    Type: Grant
    Filed: September 20, 1996
    Date of Patent: October 6, 1998
    Assignee: Rhone-Poulenc Viscosuisse SA
    Inventors: Klaus Fischer, Paul Schaffner
  • Patent number: 5644906
    Abstract: A method is disclosed for increasing the dyeability of polyester yarn and comprises heating the partially oriented yarn to a temperature between its crystallization temperature and its melting point while preventing the partially oriented yarn from shrinking, and immediately thereafter draw texturizing the partially oriented yarn to a desired draw ratio and texturization.
    Type: Grant
    Filed: May 10, 1995
    Date of Patent: July 8, 1997
    Assignee: Wellman, Inc.
    Inventor: Charlie King
  • Patent number: 5628175
    Abstract: An elongate heater for heating an advancing synthetic filament yarn with reduced friction. The yarn is advanced in contact with a generally flat contact surface of the elongate heater, with yarn guides being arranged along the heater in spaced apart relationship, and so as to guide the yarn in a zigzagged path with a predetermined amplitude over the contact surface. The yarn guides may be constructed as cylinders, which extend perpendicularly to the contact surface of the heater.
    Type: Grant
    Filed: June 22, 1995
    Date of Patent: May 13, 1997
    Assignee: Barmag AG
    Inventor: Martin Fischer
  • Patent number: 5578231
    Abstract: A heater (1) for an advancing thermoplastic yarn which is guided along a heated surface over ring segments (2). The flow of heat to the yarn is adjustable by changing the geometric parameters of the heat transfer.
    Type: Grant
    Filed: April 4, 1994
    Date of Patent: November 26, 1996
    Assignee: Barmag AG
    Inventors: Heinz Schippers, Karl Bauer, Johannes Bruske, Martin Fischer, Benno Frank, Siegfried Morhenne, Ralf Dedeken, Herbert Streppel
  • Patent number: 5534334
    Abstract: The present invention relates to base fabrics for ink ribbons used in impact printers, not allowing the graphic spots to occur.They are woven fabrics composed of synthetic multi-filament yarns, the warp of which are 30 to 50 D in yarn thickness and 330 T/M to 600 T/M in the number of twist.
    Type: Grant
    Filed: May 3, 1994
    Date of Patent: July 9, 1996
    Assignee: Toray Industries, Inc.
    Inventors: Kenji Hama, Nobutake Hiroe, Junko Kuroda
  • Patent number: 5478624
    Abstract: A synthetic yarn made from a blend of base fibers selected from the group consisting of polyester, nylon 6 and nylon 66, and 1-12 weight percent of a heat activated binder fiber having a melting point within the range of 165.degree.-190.degree. C., said binder fiber being made from a copolyamide which is derived from a mixture of 50 to 85 wt. % caprolactam, 0 to 40 wt. % hexamethylenediamine adipate or a combination of hexamethylenediamine and adipic acid, and optionally a salt selected from the group consisting of hexamethylenediamine dodecanedioate, hexamethylenediamine azeleate, hexamethylenediamine sebacate and hexamethylenediamine terephthalate; and a chain terminator selected from at least one of the group consisting of a fatty acid and a fatty amines, wherein said fatty acid or fatty amine include at least 14 carbon atoms.
    Type: Grant
    Filed: February 14, 1995
    Date of Patent: December 26, 1995
    Assignee: AlliedSignal Inc.
    Inventor: Robert A. Lofquist
  • Patent number: 5477669
    Abstract: A process for stretching natural staple fibers to reduce the diameter includes the steps of treating a substantially untwisted traveling assembly of natural fibers to plasticize the natural fibers, twisting the traveling assembly sufficiently to substantially prevent drafting of the assembly during subsequent stretching, subsequently stretching the twisted assembly and setting the stretch. Staple fibers having reduced diameters are provided as a result of the stretching process.
    Type: Grant
    Filed: May 6, 1994
    Date of Patent: December 26, 1995
    Assignee: Commonwealth Scientific & Industrial Research Organisation
    Inventors: David G. Phillips, John J. Warner
  • Patent number: 5471828
    Abstract: A method for increasing the dyeability of polyester yarn comprising heating the partially oriented yarn to a temperature between its crystallization temperature and its melting point while preventing the partially oriented yarn from shrinking, and immediately thereafter draw texturizing the partially oriented yarn to a desired draw ratio and texturization.
    Type: Grant
    Filed: May 4, 1993
    Date of Patent: December 5, 1995
    Assignee: Wellman, Inc.
    Inventor: Charlie King
  • Patent number: 5462778
    Abstract: An artificial turf with high water rentivity. A cut pile is formed over the surface of a backing structure by implanting a multiplicity of tufts. Each tuft comprises one or a plurality of pile yarns. Each of the pile yarns is composed of one flat filament or a plurality of bundled flat filaments twisted and fixed in the twisted state into a slender form having an approximately spiral cross section. A pile yarn for such artificial turfs and a process for producing such a pile yarn.
    Type: Grant
    Filed: May 13, 1993
    Date of Patent: October 31, 1995
    Assignee: Otsuka Kagaku Kabushiki Kaisha
    Inventor: Yoshio Ishikawa
  • Patent number: 5442903
    Abstract: Monofilament twist for applications, such as, for example, use as a reinforcement in tires, for paper-machine junction felts, as a canopy support and for knitting, braiding or other textile operations, consisting of at least two monofilaments of synthetic material of a grist at least equal to 20 tex, assembled, twisted and thermoset and virtually free of untwisting stress. The synthetic material is preferably based on polyamide or polyester. Process for the production of twists.
    Type: Grant
    Filed: November 23, 1993
    Date of Patent: August 22, 1995
    Assignee: Rhone-Poulenc Fibres
    Inventor: Gerard Lagarrigue
  • Patent number: 5414987
    Abstract: A process for treating a ply-twisted crimped multifilament yarn. The process involves adjusting the temperature and moisture content of the yarn prior to passing the yarn through a stuffer box which is essentially free of steam. Excess hot fluid is removed from the yarn, and the yarn's temperature is adjusted to a temperature in the range of about 40.degree. to 90.degree. C. before the yarn is passed through the stuffer box. The yarns may be used for making a textured saxony-type carpets having a tightly tailored surface texture.
    Type: Grant
    Filed: September 30, 1993
    Date of Patent: May 16, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Warren F. Knoff, Theresa A. Weston
  • Patent number: RE45243
    Abstract: The invention relates to a method for producing a towel, specifically a low twist towel, comprising the following steps: Z twisting a thick yarn and separately Z twisting a fine count yarn; unevenly S twisting the Z-twisted yarns to make the volume of the thick yarn more than that of the fine count; weaving the yarn to produce a fabric; processing the fabric with hot water to reduce inner tension in the yarn and make the fabric become fluffy. Fabric produced by this method can solve the dependency on PVA, reduce energy consumption and material consumption, and prevent water pollution. This method for producing a low twist towel is environmentally friendly, healthy, and energy saving.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: November 18, 2014
    Assignee: Loftex USA LLC
    Inventor: Hongxing Wang