US3365872A - Yarn wrapped with surface fibers locked in place by core elements - Google Patents

Yarn wrapped with surface fibers locked in place by core elements Download PDF

Info

Publication number
US3365872A
US3365872A US397139A US39713964A US3365872A US 3365872 A US3365872 A US 3365872A US 397139 A US397139 A US 397139A US 39713964 A US39713964 A US 39713964A US 3365872 A US3365872 A US 3365872A
Authority
US
United States
Prior art keywords
fibers
yarn
core
core elements
wrapped
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US397139A
Other languages
English (en)
Inventor
Jr Frederick C Field
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Priority to US397139A priority Critical patent/US3365872A/en
Priority to IL24177A priority patent/IL24177A/xx
Priority to SE11719/65A priority patent/SE321175B/xx
Priority to LU49461A priority patent/LU49461A1/xx
Priority to BR173183/65A priority patent/BR6573183D0/pt
Priority to GB39375/65A priority patent/GB1092130A/en
Priority to DE19651510858 priority patent/DE1510858B2/de
Priority to DK476565AA priority patent/DK124344B/da
Priority to DE1785630A priority patent/DE1785630C3/de
Priority to AT846465A priority patent/AT268947B/de
Priority to NL656512162A priority patent/NL138880B/xx
Priority to CH1290265A priority patent/CH435067A/de
Priority to BE669797D priority patent/BE669797A/xx
Application granted granted Critical
Publication of US3365872A publication Critical patent/US3365872A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/11—Spinning by false-twisting
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/36—Cored or coated yarns or threads
    • D02G3/367—Cored or coated yarns or threads using a drawing frame
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/10—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]

Definitions

  • An object of this invention is to provide novel wrapped yarns having improved properties over those obtainable heretofore. More specifically, it is an object to improve the surface stability, slippage resistance and knot-holding ability of wrapped yarns, particularly for the manufacture of twine. A further object is to provide a satisfactory process for preparing said novel improved yarns. A still further object is to provide suitable apparatus for preparing said yarns. Other objects will be apparent from a description of the invention given below.
  • the novel wrapped yarn of this invention is an improvernent over yarn prepared in accordance with my US. Patent No. 3,079,746 of Mar. 5, 1963.
  • the yarns are similar in having surface wrappings of discontinuous textile fibers tightly twisted about a core of relatively straight textile fibers, the core fibers being held together as a compact bundle by the wrappings. There is a predominance of true twist in the wrappings and the core may be substantially free from true twist.
  • the yarn of the present invention is further characterized by having a core of at least two continuous, integral core elements, such as multifilament textile yarns composed of continuous or discontinuous fibers, and by having portions of surface fibers locked in place in the core, particularly between the core elements, in a manner which holds the surface wrappings in position.
  • the individual core elements may be twisted or free from twist, but thereis substantially no twist of the core elements about each other unless twist is introdu :ed in subsequent processing of the yarn product.
  • the improved yarn is also characterized by the surface fibers being helically twisted tightly about the bundle of core filaments such that the twist level of said surface fibers is relatively constant along the length of the yarn.
  • the invention also provides a novel twist transference
  • a further aspect of this invention is the provision of a suitable apparatus for making the above-mentioned improved yarn which comprises, in combination, a false-twisting means, means providing a convergence point upstream from said falsetwisting means, means for feeding separate core elements to said convergence point, separate means for pneumatically feeding discontinuous textile fibers to said convergence point, and means for drafting s'aid discontinuous fibers prior to contact with said core elements.
  • FIGURE 1 is a schematic representation of a specific embodiment of the process and apparatus for producing the novel yarn of this invention
  • FIGURE 2 illustrates a wrapped yarn product of this invention on an enlarged scale
  • FIGURE 3 is a greatly enlarged cross-sectional view of a wrapped yarn product of this invention, illustrating that discontinuous fibers are locked in place between the core filaments, the ends of which are shown as circles, and are also wrapped around the bundle of care filaments.
  • FIGURE 1 a large number of fibers or sliver 10, from a suitable source, are fed in side-by-side relationship between back rolls 12 and 14 of a conventional spinning frame, pass between a pair of control rolls 16 and 18, and between guide rolls 20 and 22 to the front drafting rolls 24 and 2.6 of the frame. Passing about the control and guide rolls are a pair of aprons Z8 and 30, which support and assist in drafting the slivers.
  • the relative speeds of the above sets of rolls are controlled in conventional manner for normal drafting of slivers, which is usually in the range from about 20x to 100x.
  • the front rolls 24, 26 feed the drafted slivers as a sheet of discontinuous fibers to the novel treatment of this invention.
  • the fibers pass directly into the back end of a hollow box-like member 32 and are borne forward in a current of air.
  • the air current is created by suction through duct 34, which opens into the box-like member near the forward end. It may be desirable to place a screen over the duct opening to prevent removal of short fibers, but this is not necessary with usual staple lengths. Also, although a screen is sometimes useful to separate short fibers from the exiting air stream, very short fibers tend to catch in the screen and not be picked up in the yarn being produced.
  • Continuous core elements 36 are fed separately into 6 the box-like member through opposed openings 38 located intermediate the back and front ends of the box.
  • Two core elements are shown entering the box through a pair of openings, but a larger number may be used to provide modified products.
  • the front rolls 24, 26 are shown controlling the feed rate of the core elements, but separate feed rolls can be used to deliver these elements at a higher or lower speed than the front rolls would provide.
  • the continuous core elements and the airborne fibers are combined into a single strand 40 which exits from the box through an Opening 42 in the front end.
  • the box-like member is open at the back end to receive the fibers from the front rolls and is otherwise completely enclosed except forthe additional openings mentioned above.
  • the flattened box shown has been found highly effective for the purpose of this invention, but other shapes can obviously be used to cause the fibers to be transported in a suitable airborne condition for combination with the con tinuous core elements.
  • Device 44 is preferably a torque jet but may be any of the known false twisters for introducing twist which backs up along the strand, as it travels toward the device, to a point within the box 32 Where the continuous core elements converge and are twisted together.
  • the airborne fibers are randomly caught up by the twisting core elements and receive a lesser twist.
  • the strand passing to the false twister has a high degree of twist of the core elements about each other, and varying lesser amounts of twist of the fibers about the core.
  • the core twist is substantially all removed as the strand travels on beyond the false twister to the take-up rolls. Because of the above non-uniform twist, the less highly-twisted surface fibers first untwist and then twist in reverse direc tion as untwisting of the core elements takes place. This phenomenon will be referred to as twist transference. The result is that the product has fibers: twisted tightly; about substanially straight core elements as illustrated in FIG- URE 2.
  • the yarn illustrated on an enlarged scale in FlGURE 2 has staple fibers 50 helically twisted about core elements composed of substantially straight continuous filaments Patented Jan. 30, 1968 52.
  • the major proportion of the fibers are wrapped tightly about the core in helical bands which resemble stripes on a barbers pole.
  • FIGURE 3 shows the appearance of a greatly enlarged cross-section of the above yarn.
  • a minor proportion of staple fiber ends 58 are seen between filaments 52 in the core.
  • This embodiment is made with a pair of core elements, and fiber ends 58 lie between the juncture of the two elements. Fibers having portions locked in place in the core, in this manner, are present in surface wrappings and hold the wrappings in place.
  • fibers having flattened cross sections are used so that the ends 50 and 58 are readily distinguishable from the filaments 52 of circular cross section.
  • Suitable raw materials for making the yarns of this invention include all synthetic and natural fibers and filaments, and combinations thereof.
  • the filaments or fibers of the continuous core elements and the discontinuous fibers having free ends which form the wrapping elements may have the same or different cross sections and may be composed of the same or different compositions selected from the various fiber compositions exemplified below.
  • Natural fibers that may be used include cotton, wool, silk, ramie, fiax, jute, hemp and the like.
  • Suitable synthetic fibers include polyamides such as poly(epsilon caproamide) and poly(hexamethylene adipamide), poly (undecanoamide) and poly(heptanoamide); cellulose esters, e.g., cellulose acetate; polyesters; particularly polyesters of terephthalic acid or isophthalic acid and a lower glycol, e.g., poly(ethylene terephthalate); poly(hexahydro-p-xylylene terephthalate); polyalkylenes, e.g., polyethylene, linear polypropylene, etc.; polyvinyls and polyacrylics, e.g., polyacrylonitrile, as well as copolymers of acrylonitrile and other copolymerizable monomers (e.g., methyl methacrylate or vinyl acetate).
  • polyamides such as poly(epsilon caproamide) and poly(hexamethylene adipamide), poly (undecanoamide
  • Copolymers of ethylene terephthalate containing less then combined monomers other than ethylene terephthalate and copolyrrierizable with ethylene terephthalate are also useful in practicing this invention.
  • Also useful in the practice of this invention are spandex fibers and yarns, multicomponent fibers such as described in Taylor US. Patent No. 3,038,237 and Breen U.S. Patent No. 3,038,236, as well as poly(meta-phenylene isophthalamide), and poly benzimidazole.
  • Other compositions which are suitable for the two types of feed materials include metal fibers, glass fibers. and asbestos fibers.
  • the separate core elements for use in this invention are continuous bundles, with or without twist, composed of continuous filaments, spun yarns, monofil, mixtures of continuous filament and staple, core-spun yarns, and the like.
  • the two or more core elements may be of the same composition and construction or they may be of different composition and/or different construction.
  • the discontinuous fibers which are used in making the yarn must have free ends, but may be of conventional staple length or longer.
  • the discontinuous fibers may have a length varying from one inch up to twenty inches, or even higher. They may be of the same length or of a mix ture of lengths, such as is produced from a Turbo-Stapler (Turbo Machine Company, Lansdale, Pa).
  • the percentage of discontinuous fibers used in making the final yarn product will depend on the type of product desired and the characteristics desired in the yarn. In spinning yarns of multi-component core elements, some improvement in yarn properties can be noted when using as little as 2% to 3% of discontinuous fibers, based on the weight of final yarn product, but greater amounts are usually desirable and the products can contain 40% to of discontinuous fibers. Normally the amount of discontinuous fibers employed in making the wrapped yarns will be kept to a minor proportion of the total product by weight.
  • the denier of the discontinuous fibers as well as the denier of the core elements are not critical, and will normally depend on the characteristics desired in 'ahe final yarn product. Suitable deniers may range from about 1 d.p.f.
  • Suitable false-twisting devices include torque jets of the type shown in FIGURE 4 of my US Patent No. 3,079,746 and fiuid jets of the types illustrated in the drawings of Breen et al. US. Patent No. 3,009,309 of Nov. 21, 1961.
  • the discontinuous fibers appearing as wrapping elements in the surface of the yarn are in the form of a substantially continuous wrapping element running the length of the yarn.
  • Another observation has been noted in connection with wrapped yarns of heavy denier or multiply, wherein the surface of the wrapped yarn exhibits a barber pole" efiect when the amount of discontinuous fibers in the wrapping is relatively small. As the amoun of wrapping fibers is increased to larger amounts, this visual effect disappears and the discontinuous wrapping fibers completely cover the core elements throughout the length of the yarn.
  • the relative speeds of the two feed materials may be the same or may be different.
  • the core elements may be fed to the convergence point either faster or slower than the discontinuous fiber feed.
  • the convergence point of discontinuous fibers and core elements is normally set at a distance downstream of the nip of the feed rolls greater than the maximum length of discontinuous fibers, and preferably at a distance about twice the average fiber length, the 2% of longest fibers in mixture of different lengths, such as a Turbo product, being neglected in said average.
  • An important advantage of the present invention is that it provides a new wrapped yarn structure having superior surface stability, slippage resistance, knot-holding ability, and strength over wrapped yarns made heretofore. Most of the superior properties exhibited by the novel wrapped yarns are due to the discontinuous fibers which are locked in place between the core elements in the interior of the new wrapped yarns. This is a structural feature not present, for example, in the yarns described in my US. Patent No. 3,079,746.
  • the yarns of the present invention have a distinctly different yarn structure which provides yarn characteristics and properties superior to those of the previous yarns which have no discontinuous fibers separating the core elements in the middle of the yarn.
  • yarns may be prepared in accordance with my invention to have the feel, hand and bulk of spun yarn, while also having the strength, elongation, shrinkage and modulus of a continuous filament industrial yarn.
  • Example 16 2 1,100 Polyester. 111 10.0 3.0 114 112 21s 12 840 Nylon -- 85 22.5 4.5 s5 s4 39 2 840 ..do 110 12.5 4.5 15 114 a dicated speeds in yards per minute.
  • Example 16 a set of core element feed rolls (not shown) were pro vided directly above the illustrated front rolls to deliver the core elements to the convergence box at a higher speed than the staple.
  • the denier of each core'bundle of essentially zero twist multifilament yarn (except Example 8 which is a spun yarn) is listed in the table together with the feeding speeds in yards per minute and the filament composition of the core bundle.
  • the discontinuous fibers are composed of'thc indicated fiber composition and denier per fiber, and these staple fibers are fed in the form of a sliver to the back rolls of the frame and drafted from 20X to 100X during passage to the front rolls.
  • the staple fibers are picked up from the front rolls by a vacuum line and brought into contact with the core elements on route to the convergence point, which, in turn, is set at a distance of approximately two times the average fiber length measured downstream from the nip of the front or feed rolls.
  • the staple fibers forming the sliver in all except Examples 12 and 13 were obtained from continuous filaments which had been broken on a Turbo-Stapler machine, resulting in a distribution of fiber lengths with an average fiber length of approximately 3 inches.
  • the nylon staple was combed top, having an average fiber length of about 3 inches.
  • the table indicates the weight percent of staple fiber which was used in making each yarn, based on the combined weights of the continuous elements and of the discontinuous elements in the final wrapped yarn product.
  • the feeding speed of the sliver at the feed rolls is also given in the table.
  • the false twisting device used in making the 16 yarn samples was a fluid jet of the type shown in FIG- URE 4 of my US. Patent No. 3,079,746, which was operated with compressed air at about 95 p.s.i.g. at room temperature.
  • the wrapped yarns were guided to a surface driven windup (speed shown in the table).
  • the yarn size is listed in terms of cotton count.
  • the yarn products were highly useful as industrial twines, especially for the machine tying of mail.
  • the yarns of Examples 2, 9, 12, 14 and 16 were also useful for making upholstery fabrics.
  • the yarn products listed in the table all had good surface stability and good knotholding ability.
  • the knot retention of the yarn products was far superior to either conventionally plied continu-
  • the present invention provides a wide variety of different yarn structures made from different fiber compositions as described and exemplified above.
  • the wrapped yarns are useful for preparing a number of different types of woven, knitted, non-woven, and tufted fabrics, both in the industrial textile field as well as the apparel textile field. Products which maybe made include sewing.
  • yarns for use in industrial fabrics, coated fabrics, industrial hose reinforcement, fire hose, industrial belts, conveyor belts, V-belts and webbing yarns for special cordage applications, such as' water wicking, upholstery, carpets and tire cord
  • industrial and household cords and twines including twine for machine tying of magazines, mail and the like, baler twine and hand twine; and specialty wrapped yarns for use as an effect thread in styling different types of fabrics, and the like.
  • a wrapped yarn comprising a core composed of at least two continuous integral core elements of textile fibers and surface wrappings composed of discontinuous textile fibers, the surface fibers being tightly twisted about the core with portions of fibers locked into place in the core, and the core fibers being relatively straight and held together as a compact bundle by the surface wrappings.
US397139A 1964-09-17 1964-09-17 Yarn wrapped with surface fibers locked in place by core elements Expired - Lifetime US3365872A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
US397139A US3365872A (en) 1964-09-17 1964-09-17 Yarn wrapped with surface fibers locked in place by core elements
IL24177A IL24177A (en) 1964-09-17 1965-08-17 Yarns and a process and apparatus for producing them
SE11719/65A SE321175B (de) 1964-09-17 1965-09-08
LU49461A LU49461A1 (de) 1964-09-17 1965-09-09
GB39375/65A GB1092130A (en) 1964-09-17 1965-09-15 Wrapped yarn and process and apparatus for the preparation thereof
BR173183/65A BR6573183D0 (pt) 1964-09-17 1965-09-15 Um fio envolvido ou encapado e processo e aparelhagem de falsa torcao para produzir o mesmo
DE19651510858 DE1510858B2 (de) 1964-09-17 1965-09-16 Verfahren und vorrichtung zur herstellung umwickelter garne
DK476565AA DK124344B (da) 1964-09-17 1965-09-16 Omspundet garn og fremgangsmåde samt apparat til dets fremstilling.
DE1785630A DE1785630C3 (de) 1964-09-17 1965-09-16 Umwickeltes Garn
AT846465A AT268947B (de) 1964-09-17 1965-09-16 Kerngarn sowie Verfahren und Vorrichtung zu seiner Herstellung
NL656512162A NL138880B (nl) 1964-09-17 1965-09-17 Garen, voorzien van een kern en discontinue vezels die om de kern zijn gewikkeld, alsmede werkwijze voor het vervaardigen van dit garen.
CH1290265A CH435067A (de) 1964-09-17 1965-09-17 Umwickeltes Garn und Verfahren und Vorrichtung zu seiner Herstellung
BE669797D BE669797A (de) 1964-09-17 1965-09-17

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US397139A US3365872A (en) 1964-09-17 1964-09-17 Yarn wrapped with surface fibers locked in place by core elements

Publications (1)

Publication Number Publication Date
US3365872A true US3365872A (en) 1968-01-30

Family

ID=23569983

Family Applications (1)

Application Number Title Priority Date Filing Date
US397139A Expired - Lifetime US3365872A (en) 1964-09-17 1964-09-17 Yarn wrapped with surface fibers locked in place by core elements

Country Status (12)

Country Link
US (1) US3365872A (de)
AT (1) AT268947B (de)
BE (1) BE669797A (de)
BR (1) BR6573183D0 (de)
CH (1) CH435067A (de)
DE (2) DE1510858B2 (de)
DK (1) DK124344B (de)
GB (1) GB1092130A (de)
IL (1) IL24177A (de)
LU (1) LU49461A1 (de)
NL (1) NL138880B (de)
SE (1) SE321175B (de)

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3403503A (en) * 1967-06-30 1968-10-01 Du Pont Stranded rope and process for making it
US3458987A (en) * 1966-12-29 1969-08-05 Mitsubishi Rayon Co Jet bundle yarn
US3487619A (en) * 1966-09-02 1970-01-06 Du Pont Apparatus for high speed drafting
US3533225A (en) * 1968-01-22 1970-10-13 John A Cupler Endless monoform belt
US3643416A (en) * 1969-12-10 1972-02-22 Railway Supply & Mfg Co The Compact textile tow and method fof forming same
US3675409A (en) * 1970-01-27 1972-07-11 Hartford Spinning Canada Ltd Compact multi-filament textile tow and method of making the same
US3722202A (en) * 1971-09-24 1973-03-27 Agriculture Spinning a filament-wrapped staple fiber core yarn
US3732684A (en) * 1971-02-23 1973-05-15 Du Pont Product and process
US3845611A (en) * 1972-05-03 1974-11-05 Electrospin Corp Method and apparatus for producing composite yarn
US3978648A (en) * 1973-04-10 1976-09-07 Toray Industries, Inc. Helically wrapped yarn
US4003194A (en) * 1973-04-10 1977-01-18 Toray Industries, Inc. Method and apparatus for producing helically wrapped yarn
US4152885A (en) * 1977-07-01 1979-05-08 Hercules Incorporated Interlocked yarn and method of making same
US4248036A (en) * 1979-03-08 1981-02-03 E. I. Du Pont De Nemours And Company Bulky yarn
US4265082A (en) * 1978-10-20 1981-05-05 Teijin Limited Spun-like yarn and a process for manufacturing the same
US4414800A (en) * 1980-04-01 1983-11-15 Toray Industries, Inc. Twisted yarn and method of producing the same
US4505100A (en) * 1983-04-21 1985-03-19 Teijin Limited Heat-durable spun-like fasciated yarn and method for producing the same
US4507913A (en) * 1982-06-07 1985-04-02 Burlington Industries, Inc. Vacuum spinning
US4845946A (en) * 1988-02-24 1989-07-11 W. Schlafhorst & Co. Method of producing mottled rotor spun yarn
US4896406A (en) * 1986-06-11 1990-01-30 Burlington Industries, Inc. Method for producing sheeting products from yarn having sheath and core construction
US5103626A (en) * 1984-12-03 1992-04-14 Burlington Industries, Inc. Fasciated yarn structure made by vacuum spinning
USH1225H (en) 1991-09-05 1993-09-07 False-twisting process for producing intertwined yarn of comfort and high cut-resistance
US5392588A (en) * 1982-06-07 1995-02-28 Burlington Industries, Inc. Spinning with hollow rotatable shaft and air flow
US20040025486A1 (en) * 2001-08-07 2004-02-12 Kotaro Takiue Reinforcing composite yarn and production therefor
WO2004035901A1 (en) * 2002-10-17 2004-04-29 Georg Martin Barth Non woven textile structure incorporating stabilized filament assemblies
CN102767007A (zh) * 2012-06-26 2012-11-07 吴江亚太化纺有限公司 一种泳装用aty弹性丝
CN103334204A (zh) * 2013-06-09 2013-10-02 宜兴乐威牛仔布有限公司 一种双芯牛仔面料
US20220282406A1 (en) * 2018-11-28 2022-09-08 Tvn Investment Limited Yarn, apparatus and methods preparing thereof
US20230234807A1 (en) * 2022-01-24 2023-07-27 Jean-Michel Libeau System for Producing Yarn
CN116497494A (zh) * 2023-06-30 2023-07-28 江苏恒力化纤股份有限公司 一种保暖起绒纱及其制备方法和装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52107349A (en) * 1976-03-04 1977-09-08 Murata Machinery Ltd Spun yarn and method of producing same
DE3018551A1 (de) * 1980-05-14 1981-11-19 Zinser Textilmaschinen Gmbh, 7333 Ebersbach Verfahren und vorrichtung zum herstellen von garn durch verziehen und umwinden
EP0249074A3 (de) * 1986-06-11 1988-04-20 Burlington Industries, Inc. Gestrickter Stoff aus Umwindegarn für Bettwäsche

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1439166A (en) * 1919-10-07 1922-12-19 Rockbestos Products Corp Asbestos product
US2053123A (en) * 1933-07-15 1936-09-01 Du Pont Rayon Co Artificial thread and method of making same
US2179087A (en) * 1939-01-26 1939-11-07 Us Rubber Co Asbestos yarn
US2311356A (en) * 1941-02-15 1943-02-16 Union Asbestos & Rubber Co Asbestos insulating unit or yarn
US2449595A (en) * 1944-08-19 1948-09-21 William D Ellis Reinforced plastic material
US2902820A (en) * 1955-03-14 1959-09-08 Portage Hosiery Company Yarn and method of making same
US3079746A (en) * 1961-10-23 1963-03-05 Du Pont Fasciated yarn, process and apparatus for producing the same
US3164951A (en) * 1962-03-12 1965-01-12 Turner Brothers Asbest Method of forming a core yarn

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1439166A (en) * 1919-10-07 1922-12-19 Rockbestos Products Corp Asbestos product
US2053123A (en) * 1933-07-15 1936-09-01 Du Pont Rayon Co Artificial thread and method of making same
US2179087A (en) * 1939-01-26 1939-11-07 Us Rubber Co Asbestos yarn
US2311356A (en) * 1941-02-15 1943-02-16 Union Asbestos & Rubber Co Asbestos insulating unit or yarn
US2449595A (en) * 1944-08-19 1948-09-21 William D Ellis Reinforced plastic material
US2902820A (en) * 1955-03-14 1959-09-08 Portage Hosiery Company Yarn and method of making same
US3079746A (en) * 1961-10-23 1963-03-05 Du Pont Fasciated yarn, process and apparatus for producing the same
US3164951A (en) * 1962-03-12 1965-01-12 Turner Brothers Asbest Method of forming a core yarn

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3487619A (en) * 1966-09-02 1970-01-06 Du Pont Apparatus for high speed drafting
US3458987A (en) * 1966-12-29 1969-08-05 Mitsubishi Rayon Co Jet bundle yarn
US3490219A (en) * 1966-12-29 1970-01-20 Mitsubishi Rayon Co Super high speed spinning method and apparatus for manufacturing jet bundle yarn
US3403503A (en) * 1967-06-30 1968-10-01 Du Pont Stranded rope and process for making it
US3533225A (en) * 1968-01-22 1970-10-13 John A Cupler Endless monoform belt
US3643416A (en) * 1969-12-10 1972-02-22 Railway Supply & Mfg Co The Compact textile tow and method fof forming same
US3675409A (en) * 1970-01-27 1972-07-11 Hartford Spinning Canada Ltd Compact multi-filament textile tow and method of making the same
US3732684A (en) * 1971-02-23 1973-05-15 Du Pont Product and process
US3722202A (en) * 1971-09-24 1973-03-27 Agriculture Spinning a filament-wrapped staple fiber core yarn
US3845611A (en) * 1972-05-03 1974-11-05 Electrospin Corp Method and apparatus for producing composite yarn
US3978648A (en) * 1973-04-10 1976-09-07 Toray Industries, Inc. Helically wrapped yarn
US4003194A (en) * 1973-04-10 1977-01-18 Toray Industries, Inc. Method and apparatus for producing helically wrapped yarn
US4152885A (en) * 1977-07-01 1979-05-08 Hercules Incorporated Interlocked yarn and method of making same
US4265082A (en) * 1978-10-20 1981-05-05 Teijin Limited Spun-like yarn and a process for manufacturing the same
US4248036A (en) * 1979-03-08 1981-02-03 E. I. Du Pont De Nemours And Company Bulky yarn
US4414800A (en) * 1980-04-01 1983-11-15 Toray Industries, Inc. Twisted yarn and method of producing the same
US4484436A (en) * 1980-04-01 1984-11-27 Toray Industries, Inc. Process for producing a twisted yarn
US4507913A (en) * 1982-06-07 1985-04-02 Burlington Industries, Inc. Vacuum spinning
US5392588A (en) * 1982-06-07 1995-02-28 Burlington Industries, Inc. Spinning with hollow rotatable shaft and air flow
US4505100A (en) * 1983-04-21 1985-03-19 Teijin Limited Heat-durable spun-like fasciated yarn and method for producing the same
US5103626A (en) * 1984-12-03 1992-04-14 Burlington Industries, Inc. Fasciated yarn structure made by vacuum spinning
US4896406A (en) * 1986-06-11 1990-01-30 Burlington Industries, Inc. Method for producing sheeting products from yarn having sheath and core construction
US4845946A (en) * 1988-02-24 1989-07-11 W. Schlafhorst & Co. Method of producing mottled rotor spun yarn
USH1225H (en) 1991-09-05 1993-09-07 False-twisting process for producing intertwined yarn of comfort and high cut-resistance
EP1416074A1 (de) * 2001-08-07 2004-05-06 Teijin Limited Als verstärkung geeignetes verbundgarn und dessen herstellung
US20040025486A1 (en) * 2001-08-07 2004-02-12 Kotaro Takiue Reinforcing composite yarn and production therefor
EP1416074A4 (de) * 2001-08-07 2004-11-17 Teijin Ltd Als verstärkung geeignetes verbundgarn und dessen herstellung
US7395654B2 (en) 2001-08-07 2008-07-08 Teijin Limited Reinforcing composite yarn and production therefor
WO2004035901A1 (en) * 2002-10-17 2004-04-29 Georg Martin Barth Non woven textile structure incorporating stabilized filament assemblies
CN102767007A (zh) * 2012-06-26 2012-11-07 吴江亚太化纺有限公司 一种泳装用aty弹性丝
CN103334204A (zh) * 2013-06-09 2013-10-02 宜兴乐威牛仔布有限公司 一种双芯牛仔面料
US20220282406A1 (en) * 2018-11-28 2022-09-08 Tvn Investment Limited Yarn, apparatus and methods preparing thereof
US11946171B2 (en) * 2018-11-28 2024-04-02 Tvn Investment Limited Yarn, apparatus and methods preparing thereof
US20230234807A1 (en) * 2022-01-24 2023-07-27 Jean-Michel Libeau System for Producing Yarn
US11891264B2 (en) * 2022-01-24 2024-02-06 Jean-Michel Libeau System for producing yarn
CN116497494A (zh) * 2023-06-30 2023-07-28 江苏恒力化纤股份有限公司 一种保暖起绒纱及其制备方法和装置
CN116497494B (zh) * 2023-06-30 2023-09-22 江苏恒力化纤股份有限公司 一种保暖起绒纱及其制备方法和装置

Also Published As

Publication number Publication date
DE1785630A1 (de) 1973-07-19
AT268947B (de) 1969-02-25
DE1785630C3 (de) 1978-05-18
LU49461A1 (de) 1965-11-09
SE321175B (de) 1970-02-23
BE669797A (de) 1966-01-17
DE1510858B2 (de) 1973-05-17
CH435067A (de) 1967-04-30
DK124344B (da) 1972-10-09
IL24177A (en) 1969-02-27
DE1510858A1 (de) 1970-04-23
BR6573183D0 (pt) 1973-07-17
NL6512162A (de) 1966-03-18
DE1785630B2 (de) 1977-09-22
NL138880B (nl) 1973-05-15
GB1092130A (en) 1967-11-22

Similar Documents

Publication Publication Date Title
US3365872A (en) Yarn wrapped with surface fibers locked in place by core elements
US3367095A (en) Process and apparatus for making wrapped yarns
US3079746A (en) Fasciated yarn, process and apparatus for producing the same
US7581376B2 (en) Spun yarn, and method and apparatus for the manufacture thereof
US3214899A (en) Cordage product
US3309855A (en) Process and apparatus for producing bulked plied yarn
US20080299855A1 (en) Core yarn and woven and knitted fabric
US4028874A (en) Roving and process for its manufacture
EP3599304A1 (de) Garn mit einem kern und einem mantel aus fasern
US3091913A (en) Variable denier composite yarn
JP2007521403A (ja) ステープルファイバーおよびその製造方法
US20030205041A1 (en) Composite yarn
US20090183487A1 (en) Staple yarn manufacturing process
Alagirusamy et al. Conversion of fibre to yarn: an overview
US4196574A (en) Composite yarn and method of manufacture
US3402548A (en) Process for fracturing flat ribbons and the product thereof
US7905081B2 (en) Sewing thread
US3460338A (en) Stretch yarn
US3303640A (en) Method of producing composite elastic yarn
US4004406A (en) Spun type yarn and process for manufacturing the same
US3393505A (en) Composite elastic yarn
JP3098757B2 (ja) 交絡弾性糸および弾性編織物
US20220298678A1 (en) A composite yarn comprising at least two bundles of coalesced elastic filaments and a plurality of inelastic elements
US3153315A (en) Kasha-type yarn
CN114016177A (zh) 一种具有非均匀弹性包芯纱的生产工艺