Plural Twisting Or Heating Patents (Class 57/290)
  • Patent number: 10900145
    Abstract: Methods, systems, and apparatus for fabricating nanofiber yarn at rates of at least 30 m/min (1.8 kilometers (km)/hour (hr)) using a “false twist” nanofiber yarn spinner and a false twist spinning technique are disclosed. In a false twist spinning technique, a twist is introduced to nanofibers in a strand by twisting the nanofibers at points between ends of the strand. This is in contrast to the “true twist” technique where one end of a strand is fixed and the opposing end of the strand is rotated to introduce the twist to intervening portions of yarn.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: January 26, 2021
    Assignee: LINTEC OF AMERICA, INC.
    Inventors: BaeKyun Kim, Julia Bykova, Luis Plata, Yang Yang, Marcio D. Lima
  • Publication number: 20150107214
    Abstract: A method of producing synthetic yarn having copper properties. The method providing: applying a copper additive to a partially oriented yarn (POY) during one or more finishing processes of the POY to produce a copper enhanced POY having copper on the surface of the fibers of the copper enhanced POY.
    Type: Application
    Filed: October 15, 2014
    Publication date: April 23, 2015
    Inventor: Richard F. Rudinger
  • Publication number: 20150107215
    Abstract: A method of producing synthetic yarn having polytetrafluoroethylene (PTFE) properties. The method providing: applying a PTFE additive to a partially oriented yarn (POY) during one or more finishing processes of the POY to produce a PTFE enhanced POY having PTFE on the surface of the fibers of the PTFE enhanced POY.
    Type: Application
    Filed: October 15, 2014
    Publication date: April 23, 2015
    Inventor: Richard F. Rudinger
  • Publication number: 20150107216
    Abstract: Disclosed is a method for manufacturing a heat resistant spun yarn having improved elasticity even through low temperature heat treatment as compared to a known technology.
    Type: Application
    Filed: November 5, 2013
    Publication date: April 23, 2015
    Applicants: JIGU Co., Ltd.
    Inventors: Soo Hyun JEON, Young Kyoo PARK
  • Publication number: 20140356569
    Abstract: The present invention provides fabrics with cut loop group and a manufacturing method thereof, wherein the core yarn at the section where said loops are being cut is outwardly protruded from the covering yarns, while the synthetic fiber divided yarn, which is a core yarn, is separated into multiple filaments. The fabrics with cut loop group show superior characteristics in polishing properties, sliding properties, water absorption properties, rapid drying properties and feeling of touch since polishing can be performed while easily catching foreign substances such as extremely minute dust particles or human hairs and the like by the synthetic fiber divided yarn which functions as a hook. Thus the fabrics with cut loop group according to the present invention can be used usefully in the products such as various kind of mats, towels, bathroom products, and the like including dishclothes and mops.
    Type: Application
    Filed: May 3, 2013
    Publication date: December 4, 2014
    Inventors: Hyun Sam Lee, Sung Hoon Choi
  • Publication number: 20140073468
    Abstract: The present application discloses a cord comprising a low modulus yarn core that is wrapped by a plurality of high modulus wrapping yarns.
    Type: Application
    Filed: November 30, 2012
    Publication date: March 13, 2014
    Applicant: CARLISLE TRANSPORTATION PRODUCTS, INC.
    Inventors: Paul Steven Knutson, Curtis Scott Hatch, Michael Darin Crites
  • Publication number: 20130205741
    Abstract: The present invention provides an improved method and device for producing an alternate S/Z twist plied braid and joined alternate S/Z twist plied yarns. The invention further provides an alternate S/Z twist plied braid and joined alternate S/Z twist plied yarns produced according to a process of the invention.
    Type: Application
    Filed: November 3, 2011
    Publication date: August 15, 2013
    Applicant: GILBOS N.V.
    Inventors: Erik Gilbos, Miguel Vermandel, Hans Evenepoel, Jeroen Claes
  • Publication number: 20130192189
    Abstract: The invention provides a spun yarn comprising recycled carbon fibre, and a method for the production thereof. The recycled carbon fibre comprises discontinuous carbon fibre and, optionally, continuous carbon fibre, and may be recycled from various sources, such as end-of- life waste and manufacturing waste. The yarn which is produced shows the required degree of strength and durability, and can be used in all conventional composite manufacturing operations where virgin yarn is currently employed, such as woven fabric manufacture, unidirectional fabric manufacture, filament winding, pultrusion and the like.
    Type: Application
    Filed: February 7, 2011
    Publication date: August 1, 2013
    Applicant: University Of Leeds
    Inventors: Carl Antony Lawrence, Simon Brian Havis, Mahmudul Akonda
  • Patent number: 8468791
    Abstract: A texturing machine is described comprising a plurality of processing points for texturing a plurality of multifilament threads. The texturing machine comprises a plurality of delivery mechanisms per processing point and a texturing system for guiding, drawing and texturing one of the threads. A central heating device is associated with the processing points for thermal treatment of a plurality of threads, wherein the texturing systems within the processing points downstream of the heating device each delimit a texturing distance. In order to treat all threads qualitatively the same, according to the invention the texturing systems of the processing points associated with a thread outlet of the heating device are held in a symmetrical arrangement with respect to the heating device such that the threads within the processing points can be guided in texturing distances of the same length.
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: June 25, 2013
    Assignee: Oerlikon Textile GmbH & Co. KG
    Inventors: Klaus Bartkowiak, Detlef Oberstrass, Martin Fischer, Hans-Georg Schröder, Stefan Conrad, Jörg Schippel
  • Publication number: 20120238167
    Abstract: The present invention provides a method for manufacturing a composite yarn of paper, e.g., traditional Korean paper, and a composite yarn manufactured thereby, a method for manufacturing a fabric using the same and an automotive interior material manufactured thereby. More particularly, the present invention relates to a method for manufacturing a composite yarn of traditional Korean paper by using a traditional Korean paper yarn and a synthetic yarn, in which the composite yarn can be used in weaving and knitting, and a method for manufacturing a fabric as an automotive interior material using the same. Accordingly, the present invention provides a method for manufacturing a composite yarn of paper, comprising twisting a tape-type paper yarn, and covering the twisted paper yarn as a ground yarn at least two strands of synthetic yarn as an effect yarn to manufacture a composite yarn of paper of 160˜700 denier.
    Type: Application
    Filed: September 20, 2011
    Publication date: September 20, 2012
    Applicant: Hyundai Motor Company
    Inventor: Si Young Ban
  • Publication number: 20120090289
    Abstract: Braided or twisted lines made from a) gel spun polyolefin yarns and b) at least one other yarn or monofilament are stretched to increase line tenacity. If desired, stretching conditions can also be chosen to significantly reduce the denier of the line.
    Type: Application
    Filed: October 18, 2010
    Publication date: April 19, 2012
    Applicant: PURE FISHING
    Inventors: Roger B. COOK, Jim THELEN, Joey L. MEYER
  • Publication number: 20120009838
    Abstract: Disclosed are a hand-tearable adhesive tape which is made of a sheet woven with warps and wefts, in which the warps have a smaller titer than the wefts, and is coated with a flame retardant to provide flame retardancy and is with an adhesive agent, and a method for manufacturing the same. Advantageously, the hand-tearable adhesive tape can exhibit superior adhesive force, while providing flame retardancy and can be torn by hand.
    Type: Application
    Filed: July 7, 2011
    Publication date: January 12, 2012
    Applicant: TAEYOUNG CHEMICAL IND. CO., LTD.
    Inventors: Seung Jin Baek, Jin Hoi Kim
  • Publication number: 20100275569
    Abstract: The texturing and interlacing machine for processing synthetic yarns comprises: at least one supporting and unwinding member for at least one bobbin (B1) of untreated yarn to be textured; at least one supporting and unwinding member (31) for a bobbin (B3 ) of elastomer; a feed path, for at least one yarn (F1) to be textured; along the feed path for the yarn to be textured, in sequence along the direction of feed of the yarn to be textured: a stretching roller (5), a first oven (7 ), a cooling area (9), a yarn twisting unit (11), a master roller (13), a second oven (15), a stabilizing roller (21), an interlacing device (23) and an overfeed roller (25).
    Type: Application
    Filed: August 29, 2008
    Publication date: November 4, 2010
    Inventors: Nerino Grassi, Ezio Santino Fanti
  • Publication number: 20100229521
    Abstract: The present application of the invention aims at improving knot strength of a twisted yarn without compromising circularity, with respect to various yarns including a fishing line. For such purpose, the present application of the invention provides a yarn including a multifilament subjected to two twisting processes in different directions, and a coating resin that covers a surface of the multifilament; wherein the multifilament is subjected to a first twist in one direction, and then to a second twist in a direction opposite to that of the first twist, without being doubled with another yarn.
    Type: Application
    Filed: February 16, 2006
    Publication date: September 16, 2010
    Inventors: Yasuhisa Yamamoto, Eric Eun-Ha Choi
  • Publication number: 20100139237
    Abstract: The present invention introduces a process of spinning bast fibres through health preservating is as the following steps: Health preserving bast fibres; Opening and cleaning, carding the health preserved bast fibres and drawing the carded health preserved bast fibres into bast fibre strips; Health preserving said bast fibre strips; Spinning the health preserved fibre strips into yarn; the present invention also introduces a kind of yarn made by such process; The present invention further introduces a process of blended spinning bast fibre with other fibres through health preservating, and the yarn made by such process. The present invention realizes low end breakage rate, and high efficiency, so as to achieve high quality product.
    Type: Application
    Filed: August 15, 2008
    Publication date: June 10, 2010
    Applicant: Jiangsu Redbud Textile Technology Co., Ltd.
    Inventors: Guozhong Liu, Zhenhua Zhang
  • Publication number: 20100087856
    Abstract: An absorbable multifilament draw-textured yarn having a bulky structure, and a manufacturing method and medical use thereof The absorbable multifilament draw-textured yarn is obtained by draw-texturing a multifilament made of an absorbable polymer and has bulkiness and a superior soft touch, which are the characteristics of draw-textured yarns. As a result of partially imparting a bulkiness of 150-1000% to the multifilament draw-textured yarn, it is possible to culture cells in the bulky structure, and the multifilament draw-textured yarn is suitable for cell delivery or drug delivery.
    Type: Application
    Filed: October 7, 2009
    Publication date: April 8, 2010
    Applicant: Korea Institute of Industrial Technology
    Inventors: Young Hwan Park, Jung Nam Im, Jae Hoon Ko, Kyoung Woo Lee, Yong Woo Cho
  • Publication number: 20090320437
    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: Application
    Filed: July 18, 2007
    Publication date: December 31, 2009
    Inventor: Siegfried Brenk
  • Publication number: 20090286080
    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: Application
    Filed: July 29, 2009
    Publication date: November 19, 2009
    Inventor: Shigeru NAKANISHI
  • Publication number: 20090199533
    Abstract: A false twisting yarn composed of monofilaments containing a polyester component of which main component is polytrimethylene terephthalate, wherein the false twisting yarn is a false twisting yarn which satisfies all of the requirements of (1) a shrinkage ratio by wet heat treatment at 98° C. for 20 minutes is 5% or less, (2) a ratio (TS/WS) of elastic stretch ratio after wet heat treatment at 90° C. for 20 minutes (WS) and elastic stretch ratio after dry heat treatment at 90° C. for 15 minutes (TS) is, 0<TS/WS?1, and (3) a tensile strength is 2.0 cN/dtex or more. By using the false twisting yarn, it is possible to produce a pile cloth having a soft touch and a low shrinkage.
    Type: Application
    Filed: July 11, 2007
    Publication date: August 13, 2009
    Applicant: TORAY INDUSTRIES, INC. a corporation of Japan
    Inventors: Hiroaki Date, Noboru Ueno
  • Publication number: 20090126332
    Abstract: A process for manufacturing a composite yarn including continuous glass filaments intermingled with continuous organic thermoplastic filaments and an apparatus for implementing the process. The continuous glass filaments come from a bushing and are separated into plural sheets. The continuous organic thermoplastic filaments come from a spinning head and are separated into plural sheets. The thermoplastic filaments are thrown into the glass filaments so as to mingle them, in a ratio of at least one sheet of thermoplastic filaments in each sheet of glass filaments, the mingled filaments then being gathered into at least one composite yarn.
    Type: Application
    Filed: November 7, 2008
    Publication date: May 21, 2009
    Inventors: Philippe Boissonnat, Daniel Richard
  • Patent number: 7107753
    Abstract: A heating device for heating a yarn, in particular in a texturing machine. The heating device comprises a thin-walled heating tube, which can be evenly heated on its circumference by a heating jacket. Fitted within the peripheral wall of the heating tube is an insert, which forms a yarn channel extending between a yarn inlet and a yarn outlet for guiding the yarn. The insert is formed by a special section rail that is open along one long side, and fitted with its opposite long side to the wall of the heating tube. As a result, the yarn channel is formed between the open long side of the special section rail and the wall of the heating tube, so that it is possible to supply heat to the yarn channel directly via the wall of the heating tube.
    Type: Grant
    Filed: May 4, 2005
    Date of Patent: September 19, 2006
    Assignee: Saurer GmbH & Co. KG
    Inventors: Martin Fischer, Siegfried Morhenne
  • Patent number: 6986242
    Abstract: The device comprises: a two-for-one twisting spindle supporting a yarn winding which is twisted or cabled via a second yarn; a mechanism for pulling the yarn in order to cancel the tension resulting from the twisting or cabling operation; a heater for heating the yarn followed by a cooling area; and a mechanism for coiling the yarn. The heater comprises at least one cup-shaped element which is associated with a return guide enabling the yarn to be wound. The cup-shaped element is brought to a specific temperature and is positively driven in a state of rotation.
    Type: Grant
    Filed: July 26, 2004
    Date of Patent: January 17, 2006
    Assignee: Rieter Textile Machinery France
    Inventor: Philippe Antouly
  • Patent number: 6929134
    Abstract: When a heat treatment device for simultaneously heat-treating synthetic fiber filament yarns with saturated steam of heat medium liquid stored in a plurality of closed containers is installed with other devices together, the total height of the installation is lowered than a conventional one in order to reduce the cost of a building for storing these devices. The closed container for saturated steam of heat medium liquid is formed longer in horizontal direction, the heating surface of an outer surface of the closed container is faced downwardly, and the heating surfaces of the closed containers are provided at positions higher than the heat medium liquid level in the boiler so that a boiler for heating the heat medium is not necessarily installed in each closed container, thereby manufacturing costs are also reduced.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: August 16, 2005
    Assignee: Toyo Electric Co., Ltd.
    Inventor: Atsuhisa Fujita
  • Patent number: 6668535
    Abstract: The invention provides heat-resistant crimped yarn, of which the constituent heat-resistant high-functional fibers are prevented as much as possible from being deteriorated under heat in the process of producing the yarn. Not losing excellent properties of heat resistance and flame retardancy intrinsic to the heat-resistant high-functional fibers, the crimped yarn has a good elongation percentage in stretch, a good stretch modulus of elasticity and a good appearance, and it fluffs little and releases little dust. The heat-resistant crimped yarn comprises heat-resistant high-functional fibers, and is characterized in that it does not deteriorate under heat, and that its elongation percentage in stretch is at least 6%, its stretch modulus of elasticity is at least 40%, and its tenacity falls between 0.15 and 3.5 N/tex.
    Type: Grant
    Filed: October 3, 2001
    Date of Patent: December 30, 2003
    Assignee: Du Pont-Toray Co., Ltd.
    Inventors: Mitsuhiko Tanahashi, Kazuhiko Kosuge, Takeshi Hatano, Iori Nakabayashi
  • Publication number: 20030182923
    Abstract: A yarn false twist texturing machine for texturing multifilament synthetic yarns (4), wherein a heating device and a false twist unit are arranged within a false twist zone. An aftertreatment zone accommodates a second heating device and a countertwist device. The countertwist device is used to remove any residual twist that is left in the yarn by the false twist unit. To be able to perform a selective treatment by the countertwist device, a first embodiment provides for a twist imparting member yarn guide means for guiding the yarn (4) and being adapted for reciprocal movement between an idle position for not treating the yarn (4) or for threading it and an operating position for treating the yarn (4). In a second embodiment, the countertwist device comprises a movable twist imparting member (28, 29), which is adapted for reciprocal movement between an idle position for not treating or for threading the yarn (4) and an operating position for treating the yarn (4) by twisting it.
    Type: Application
    Filed: April 24, 2003
    Publication date: October 2, 2003
    Applicant: Barmag AG
    Inventor: Thomas Wortmann
  • Publication number: 20030101709
    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: February 11, 2002
    Publication date: June 5, 2003
    Inventor: Larry Schwartz
  • Patent number: 6479799
    Abstract: A heating device for heating at least one advancing yarn in a texturing machine, wherein the body of the heating device defines an elongate heating channel. The heating channel accommodates an exchangeable support which mounts a plurality of yarn guides which are arranged inside the heating channel for forming a plurality of adjacent yarn guide tracks for guiding a plurality of yarns in such a manner that the yarns advance in a yarn advancing plane extending at a predetermined distance from the bottom wall of the heating channel.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: November 12, 2002
    Assignee: Barmag AG
    Inventors: Siegfried Morhenne, Wolfgang Nölle, Martin Fischer
  • 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: 6408607
    Abstract: A method for false twist texturing a synthetic yarn, as well as the thus-produced crimped yarn, wherein a false twist is produced on the yarn at a speed of a false twist unit, which exceeds 2.2 times of the yarn speed and is above a saturation limit for absorbing a false twist in the yarn. The overtwisted yarn is set in the false twist zone at a temperature higher than 200° C. In proportion with the advancing speed, the withdrawal speed does not exceed 1.4 times the advancing speed, and is below 1,000 m/min. With that, a false twist textured crimped yarn is produced, which has large and small cross sections with curls and bows, which alternate with one another and have opposite directions of twist.
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: June 25, 2002
    Assignee: Barmag AG
    Inventor: Wolfgang Nölle
  • Publication number: 20020070207
    Abstract: A heating device for heating at least one advancing yarn in a texturing machine, wherein the body of the heating device defines an elongate heating channel. The heating channel accommodates an exchangeable support which mounts a plurality of yarn guides which are arranged inside the heating channel for forming a plurality of adjacent yarn guide tracks for guiding a plurality of yarns in such a manner that the yarns advance in a yarn advancing plane extending at a predetermined distance from the bottom wall of the heating channel.
    Type: Application
    Filed: November 29, 2001
    Publication date: June 13, 2002
    Inventors: Siegfried Morhenne, Wolfgang Nolle, Martin Fischer
  • Patent number: 6393817
    Abstract: Machine for combining an elastomer thread (81) with an unextendable thread (11) wound on respective spools (80,10), which comprises a first pair (20) of rollers for driving the unextendable thread (11), a heating oven (30), a false-twisting group (40), a second pair (50) of driving rollers and at least one interlacing device (60), which are arranged in sequence along the path of the thread (11), characterized in that said elastomer thread (81) is supplied upstream of the said false-twisting group (40).
    Type: Grant
    Filed: October 5, 1999
    Date of Patent: May 28, 2002
    Assignee: Fadis S.p.A.
    Inventor: Paolo Coró
  • Patent number: 6354069
    Abstract: The new invention proposes that filament yarns, in particular partially stretched yarns known as POY yarns, be subjected to stretch texturing via an air treatment nozzle. The air treatment nozzles are designed in miniaturized form, have a continuous yarn duct in which there open a plurality of transverse bores for the supply of high pressure air in the range over 14 bar, preferably within specific working windows between 20 and 50 bar. With the new invention, it was possible for the first time to process POY yarn via simultaneous stretch texturing using an air twister. The invention allows an individual thread as well as a parallel bundle of threads to be treated and permits for the first time the construction of a false twist stretch texturing bundle device with simultaneous air treatment of 500 to 1000 and more threads.
    Type: Grant
    Filed: October 22, 1999
    Date of Patent: March 12, 2002
    Assignees: Heberlein Fibertechnology, Inc., Karl Mayer Textilmaschinenfabrik GmbH
    Inventor: Christian Simmen
  • Patent number: 6301870
    Abstract: A false twist texturing machine for the texturing of synthetic threads in one handling position at a time, in which a heating device and a false twist unit are disposed within a false twist zone. In an after-treatment zone are disposed a second heating device and a counter-twist apparatus. In this case a residual twist left in the thread from the false twist unit is removed by the counter-twist apparatus. The counter-twist apparatus is for this disposed in one plane with the second heating device, so that the thread is run substantially in a straight thread path.
    Type: Grant
    Filed: August 19, 1999
    Date of Patent: October 16, 2001
    Assignee: Barmag AG
    Inventors: Heino Bünger, Hellmut Lorenz
  • Publication number: 20010017028
    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: Application
    Filed: January 29, 2001
    Publication date: August 30, 2001
    Inventors: Friedhelm Lenz, Hellmut Lorenz
  • Patent number: 6244031
    Abstract: A composite textured yarn contains a component yarn A and a component yarn B each false twisted and crimped. The component yarn B is shorter in yarn length or larger in shrinkage at least after heat treatment. Single fibers of component B have thick portions and thin portions successively alternating in the longitudinal direction.
    Type: Grant
    Filed: November 24, 1998
    Date of Patent: June 12, 2001
    Assignee: Toray Industries, Inc.
    Inventors: Kakuji Murakami, Tsugihiko Kai, Hideaki Kunisada
  • Patent number: 6209302
    Abstract: The invention relates to a false twist texturing machine and to a method of texturing synthetic yarns in, in each case, one processing point, in which a twist-stopping device, a heating device, a cooling device and a false twisting unit are disposed inside a false twisting zone. The yarn is withdrawn from the false twisting zone by means of a delivery mechanism. According to the invention, the twist-stopping device takes the form of a rotatable transport roller, around which the yarn is at least partially wrapped in a peripheral direction and which is drivable by a drive in such a way that the yarn is braked or delivered, so that the yarn tensile force is adjustable inside the false twisting zone.
    Type: Grant
    Filed: April 5, 1999
    Date of Patent: April 3, 2001
    Assignee: Barmag AG
    Inventors: Thomas Wortmann, Dietrich Berges, Hellmut Lorenz, Johannes Bruske
  • Patent number: 6164054
    Abstract: Machine for spinning and texturing by false twisting, in which the false-twist zone comprises a plurality of identical texturing stations arranged side by side on a common frame, each station comprising in order, with regard to the displacement of the thread (2) during its texturing treatment:a first delivery (3) associated, if appropriate, with a system for drawing the thread (2) and making it possible to deliver the thread to be textured;a heating device (4) followed by a cooling zone (5) for the heated thread;a false-twist spindle (6);a second take-up (7) for the textured thread emerging from the false-twist spindle (6);if appropriate, a third take-up (8) of the thread, downstream of which is arranged a second thermal treatment zone (9), and;a final take-up arranged immediately in front of the receiving members,wherein the feed of threads to all the texturing stations is carried out from means for the spinning and drawing of chemical threads, which means are mounted on said texturing machine, the threads p
    Type: Grant
    Filed: February 10, 1999
    Date of Patent: December 26, 2000
    Assignee: ICTB Yarn SA
    Inventors: Carlos Matas Gabalda, Jean-Claude Dupeuple
  • 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: 6109015
    Abstract: In a method of producing poly(trimethylene terephthalate) yarn from PTT chip which has been extruded through a spinneret into filaments and coated, the coated filaments are passed between an unheated feed roll and a tension roll to tension them without causing permanent stretching, and then are passed from the tension roll to a heated draw roll to draw the filaments in a single draw step to a draw ratio of 1.25 to 4.0 and to heat them to a temperature between their glass transition temperature and their crystallization temperature.
    Type: Grant
    Filed: July 7, 1998
    Date of Patent: August 29, 2000
    Assignee: Prisma Fibers, Inc.
    Inventors: Milton K. Roark, Matthew B. Studholme
  • Patent number: 6109016
    Abstract: The low-shrinkage hybrid yarns comprise reinforcing filaments and matrix filaments composed of thermoplastic polymers having a lower melting point than the melting or decomposition point of the reinforcing filaments. The yarns are characterized by a 160.degree. C. hot air shrinkage of not more than 2% and a 200.degree. C. hot air shrinkage of not more than 5%. A process for producing these hybrid yarns includes the steps of feeding yarn strands moving at different speeds into an entangling jet, heating a matrix feed yarn during the feeding thereof into the entangling jet, entangling the feed yarn strands, and taking off the strands with or without shrinkage and additional heating.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: August 29, 2000
    Assignee: Hoechst Trevira GmbH & Co. KG
    Inventor: Josef Geirhos
  • Patent number: 6047536
    Abstract: A textile machine for texturing textile yarns by false twisting, heating and cooling the false twisted yarns, has yarn feeding devices, a heating device with a heated surface, a cooling zone and a false twisting device. The feeding devices are operable to feed a yarn along a longitudinal yarn path in contact with the heated surface, through the cooling zone and the false twisting device. In such a machine, to provide that the surge speed is higher than would be the case with a conventional contact heater arrangement or guided non-contact heaters, to allow processing at these higher speeds without detriment to the yarn properties, and to minimize the temperature settings and hence the power consumption of the heater, the heated surface is substantially flat along the longitudinal yarn path, and the yarn path in the cooling zone extends in a direction different from that of the longitudinal yarn path.
    Type: Grant
    Filed: August 27, 1998
    Date of Patent: April 11, 2000
    Assignee: Rieter Scragg Limited
    Inventors: Geoffrey Naylor, Bipin Chauhan, John Gordon Harland
  • Patent number: 6041587
    Abstract: A machine for making a mixed yarn by combining two false-twist textured yarns is disclosed. The machine comprises drawing systems (3A, 3B; 8A, 8B) arranged on either side of the texturing area and mounted alternately on two separately controlled parallel, shafts, and heat treatment units (5A, 5B) located in the false twisting area and having a temperature controlled by two mutually separated systems. The false-twist spindles (7) are power spindles with a speed that may be varied to suit each kind of yarn. The machine comprises joining device (9) for interlacing two yarns from two different texturing positions, the device being arranged, when seen from the front, between the positions so that the two yarns (2A, 2B) follow identical paths before being joined.
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: March 28, 2000
    Assignee: ICBT Yarn
    Inventors: Carlos Matas Gabalda, Jean-Claude Dupeuble
  • Patent number: 6041586
    Abstract: In a yarn false twist texturing process in which yarn is passed through heating and cooling zones to a false twist device, the yarn is passed in a helical path around a cylinder at opposed ends of which yarn guides are disposed to provide the helical path, preferably through the cooling zone. In order to raise the surge speed at which the process becomes unstable, at least one of the yarn guides is positionally adjustable relative to another guide and/or a third guide is located between the other two so as to increase the helix angle of the yarn path and the effective angle of wrap around a cylindrical cooling device on which the guides are mounted. The cooling cylinder may be a tube to which suction is applied to draw fumes from the yarn as it passes over a port in the tube and to draw ambient air into the tube to assist the cooling effect. The non-abrupt changes in direction of the yarn path allows the twist to run back through the cooling and heating zones.
    Type: Grant
    Filed: December 31, 1997
    Date of Patent: March 28, 2000
    Assignee: Rieter Scragg Limited
    Inventors: Geoffrey Naylor, Colin Atkinson
  • Patent number: 6026636
    Abstract: A yarn false twist texturing apparatus which includes a serially arranged heater, cooling device, and twisting unit. In order to collect and remove the oil vapors arising within the false twist zone, the cooling device is configured as an elongate hollow body, and the yarn is conveyed for cooling in contact with the inside wall of the hollow body. A vapor extraction system is provided which communicates with the interior of the body. In another embodiment, a tubular protective body is arranged between the heater and the cooling device, and the interior chamber of the tubular protective body encloses the yarn and is connected to an extraction device. The advancing yarn may be wetted with a cooling fluid at a location between the heater and the cooling device, to facilitate the volatilization of the oil constituents in the yarn as well as cool the yarn.
    Type: Grant
    Filed: May 22, 1998
    Date of Patent: February 22, 2000
    Assignee: Barmag AG
    Inventors: Hellmut Lorenz, Peter Dammann
  • Patent number: 6021632
    Abstract: An apparatus for producing thick/thin effects in a filament yarn, whereby between inlet and outlet gallets or pairs of pinch rollers, in a stretching zone, the filament yarn contacts the periphery of at least one rotating disk which is heated and is formed with at least one region of reduced radius in which there is no contact between the filament yarn and the disk. The filament yarn is thereby stretched only in regions in which it is heated by contact with the disk periphery and remains thick in those regions in which it is unheated because of the presence of the recess.
    Type: Grant
    Filed: February 12, 1998
    Date of Patent: February 8, 2000
    Assignee: Zinser Textilmaschinen GmbH
    Inventor: Gunter Konig
  • Patent number: 6014854
    Abstract: Wound bobbins of yarn are exposed to constant tensioning treatment to eliminate variances in hot air shrinkage caused by the manufacturing processes used to make the strands.
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: January 18, 2000
    Assignee: American & Efird, Inc.
    Inventor: N. Geoffrey Greenberg
  • Patent number: 6000208
    Abstract: To provide a heater control apparatus capable of checking, during initial installation, whether heaters and temperature sensors are connected together so as to be correctly paired, and whether the outputs from the temperature sensors are correct.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: December 14, 1999
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventor: Toshio Yamauchi
  • Patent number: 5974777
    Abstract: A rotatable yarn cooling drum for cooling yarn plugs emanating from two texturizers has a circumferential perforated shell about which the yarn plugs are wound and cooled. A deflector in the form of a finger is spaced radially from the surface of the shell and laterally positioned between the ends of the shell. A yarn guide radially spaced from the drum has two yarn guide grooves for guiding the yarn plugs onto the shell at one side of the deflector and one lateral end of the shell. The yarn plugs may thus enter onto the shell at one lateral end and exit at the other lateral end after making more than a complete turn on the drum. The guide slots are illustrated as formed in a block to which the finger is attached.
    Type: Grant
    Filed: April 21, 1998
    Date of Patent: November 2, 1999
    Inventor: David M Davis
  • Patent number: 5950412
    Abstract: An improved machine for continuously twisting or cabling, as well as thermally treating of yarns includes a central stand capable of supporting a plurality of stations. Each station includes a direct cabling or double twist spindle for supporting and twisting or cabling a first yarn package together with a second yarn. The treatment zone is located downstream from the spindle wherein the yarn is delivered using a take-up which eliminates tension resulting from the cabling or twisting operation. The treatment zone includes a vertically disposed oven and adjacent cooling area. A take-up and return system adjacent the oven allows multiple passes to be taken through the oven, as needed, to treat the yarn under minimal tension to the cooling area and to a winding system.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: September 14, 1999
    Assignee: ICBT Valence
    Inventors: Carlos Matas Gabalda, Gerard Losson
  • Patent number: 5924272
    Abstract: A yarn false twist texturing machine having a vertically adjustable device for threading and guiding the advancing yarn at a location between the heater and the cooling plate of the machine. The threading and guiding device comprises a tubular casing having a rodless magnetic piston mounted for sliding movement therein, and a magnetic sliding element and a yarn guide mounted for sliding movement on the outside of the tubular casing. The polarity of the magnetic sliding element is opposite that of the rodless magnetic piston so that the magnetic sliding element follows the movement of the magnetic piston, and the magnetic piston is moved by compressed air delivered into either one or both ends of the tubular casing.
    Type: Grant
    Filed: August 15, 1996
    Date of Patent: July 20, 1999
    Assignee: Barmag AG
    Inventors: Klemens Jaschke, Dietrich Berges