US3448500A - Method of bulking yarn - Google Patents

Method of bulking yarn Download PDF

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Publication number
US3448500A
US3448500A US605700A US3448500DA US3448500A US 3448500 A US3448500 A US 3448500A US 605700 A US605700 A US 605700A US 3448500D A US3448500D A US 3448500DA US 3448500 A US3448500 A US 3448500A
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Prior art keywords
yarn
jet
filaments
yarns
fluid
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US605700A
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English (en)
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Gustav E Benson
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Owens Corning
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Owens Corning Fiberglas Corp
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Priority claimed from US551091A external-priority patent/US3411287A/en
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    • 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
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam

Definitions

  • the zone of fluid turbulence may be provided by an enclosed fluid texturing jet and strand feed and take-up apparatus is used to pass the strand through the fluid jet at a speed such that the energy transferred to said strand filaments is suflicient to form the desired arches but is insufficient to break the groups of filaments or to distort the desired arches into closed loops.
  • This invention relates to improved textile yarns and fabrics and an apparatus and method for producing such yarns and fabrics. It is a particular object of this invention to provide a fabric woven from glass yarns which has the texture and appearance of a fine cotton, silk or wool fabric and a hand equivalent to these fabrics.
  • this invention provides a novel bulky yarn and a method and apparatus for producing such novel yarn.
  • this invention relates to a method and apparatus for the high speed production of an improved bulky yarn, which yarn is characterized by the fact that it has a uniformly higher degree of bulk or volume than yarns heretofore produced by prior art methods and apparatuses and which is further characterized by the absence of broken ends or fibers.
  • the yarn produced by the method and apparatus of this invention is further characterized by the presence of randomly spaced, undulatory surface waves comprised of a discrete bundle of filaments which have been separated from a relatively densely packed core area and which are returned to and intermingled with the core area on each side of the individual wave.
  • Fabrics woven from the improved bulky yarn of this invention are characterized by the appearance and hand of fine cotton, silk or wool and have a low density and soft texture uniformly throughout.
  • Bulky yarns of this type are characterized by the presence of a large number of closed or crunodal loops which vary in size in accordance with the pressure and the relative rates at which the yarn is fed to and withdrawn from the area of fluid turbulence or jet.
  • US. Patent 2,874,444 discloses an apparatus including a freely rotatable, double diameter, coaxial pulley over which yarn is fed to the jet inlet from a first yarn surface of a relatively large diameter and is withdrawn from the jet outlet on a second yarn surface of relatively small diameter, thus fixing the overfeed ratio.
  • Apparatuses of this nature are effective to maintain a fixed overfeed ratio between the yarn fed and yarn withdrawn from the jet but, because of certain difiiculties in the apparatus such as inertia of the pulley and the direction in which the yarns are fed to and withdrawn from the jet, such apparatuses have been unable to be effectively used at yarn speeds in excess of about 500 feet per minute. At higher speeds, stresses are placed on the yarn and it is apt to completely break or to sever a large number of the filaments.
  • the yarn produced by the apparatus of this invention is characterized by the absence of any broken filaments and is also characterized by the presence of a large number of undulatory shaped waves each of which include selected numbers of filaments which are taken from the relatively densely packed core area on either side of the wave.
  • This novel yarn is further char- 3 acterized by a high bulk or loft, that is, the height of the undulatory waves is substantially greater than the diameter or thickness of the closely compacted core area of the textured yarn.
  • the improved yarns of this invention characterized by uniform bulking without surface irregularities and by the absence of broken filaments and crunodal or closed loops, are produced by the high speed apparatus of this invention which is able to pass untextured yarn through highly turbulent zone at a linear yarn velocity sutficient to uniformly bulk the yarn while preventing the formation of completed or closed loops and preventing filament breakage.
  • the improved yarns of this invention are produced by the device of this invention which passes them through the highly turbulent zone at a speed at which the energy transferred from the fluid turbulence to each increment of yarn is sufficient to separate a number of filaments into successive discrete undulatory arches or waves extending laterally from the core or bundle of yarn, but in insuflicient to form closed or crunodal loops in such filaments.
  • the energy transferred is not suflicient to break a substatial number of such filaments. This energy-velocity relationship is described in greater detail below.
  • the yarn feeding and take-up surfaces of the double diameter feed rolls are axially spaced apart on the coaxial feed rolls, it is possible to feed the yarn to the outlet orifice of the jet at a small angle to the axis of the jet but yet in a plane passing through the axis of the jet.
  • This small angle is important in that it keeps the incoming yarn out of the blow-back from the inlet orifice of the jet which has caused problems in previous attempts at high speed.
  • Blow-back is high velocity air which comes out of the inlet orifice of the jet, causing resistance to the incoming yarn and producing an initial fuzz or slight separation of the yarns prior to entering the jet.
  • the yarn By feeding the yarn to the inlet orifice of the jet at a slight angle to the axis of the jet to avoid the blow-back, the yarn enters the interior of the jet in a substantially unopened or compact condition where the forces of fluid turbulence initially strike only the surface portions of the yarn.
  • the yarn is passed through the jet at such high speeds, it is believed that a somewhat different bulking or texturing action takes place than in prior art apparatuses. This texturing action in which the forces of fluid turbulence affect only the surface areas of the yarn is believed to account for the novel characteristics of the yarn produced from the apparatus of this invention.
  • the device of this invention can attain a yarn feed velocity such that the energy available to each yarn increment passing through the turbulent zone is sufficient to separate the surface filaments into laterally extending undulatory waves but is insuflicient to break or to form complete or crunodal loops in the filaments.
  • FIG. 1 is a view, on a greatly enlarged scale, of a short section of an untextured or untreated yarn, prior to being treated by the apparatus of this invention
  • FIG. 2 is a view also on a greatly enlarged scale, of a short section of the novel yarn product of this invention illustrating the undulatory wave-like configurations assumed by selected bundles of surface filaments which are produced from the relatively straight, closely packed filaments of the yarn shown in FIG. 1;
  • FIG. 3 is a cross-sectional view, taken along the lines 33 of FIG. 2, and showing the manner in which the undulatory waves formed by the bundles of surface filaments extend in all directions from the core thereof;
  • FIG. 4 is a schematic view in perspective of a complete yarn bulking apparatus of this invention, showing a yarn texturing fluid jet with yarn being fed to and taken from it by a pair of driven, double diameter, coaxial yarn feed and take-up rollers and further illustrating the manner in which the yarn is passed from the take-up roller to a liquid size applicator and thence to a constant tension Winding device;
  • FIG. 5 is a cross-sectional view taken along line 5-5 of FIG. 4 and showing, on an enlarged scale, the alignment of the fluid jet inlet and outlet orifices with the axial centers of the yarn bearing surfaces of the feed and take-up rollers;
  • FIG. 6 is a schematic View of a portion of FIG. 5 showing the drive mechanism for the feed and take-up rollers.
  • the improved bulky yarn of this invention can be made from an untextured yarn or strand of continuous filament fibers of any origin. Glass fibers are particularly adapted for use in forming the bulky product of this invention.
  • yarn refers to a bundle of continuous filament fibers, twisted or untwisted. The filaments prior to being treated are generally parallel and are densely compacted into a yarn having a uniform average diameter, indicated by reference numeral 10a.
  • the novel product of this invention comprises a generally linear, relatively dense core section, designated by reference numeral 10b, and a plurality of surface waves designated by reference numeral 11.
  • the surface waves 11 occur randomly along the length of the yarn and have generally equal forward and reverse slopes Within each wave.
  • the waves Ila-11c extend radially outwardly from the core section 10b in all directions so that the bulk or waves of the improved yarn extends radially outwardly from the center of the core section 10b by a substantially equal amount in all directions.
  • the core section is further characterized by the presence of randomly occurring holes or splits, designated by reference letter X, formed by a separation of the core section filaments into distinct groups.
  • Each of the waves 11 is comprised of a group of filaments taken from the core section 10b on either side of the wave.
  • the group of filaments forming the waves appear to lie on the opposite side of the core section from which the wave emerges so that the waves are bound in place by the main body of filaments of the core section.
  • the individual filaments are of varying length so that each wave is comprised of a number of filaments which are spaced apart, extending from the outermost filament 12 of the wave 11a and extending radially inwardly toward the core section 1011.
  • each of these waves extend in all directions from the center of the core section 10b, as seen in FIG. 3, each of these waves, from its crest, such as from filament 12 in wave 11:! to the core section 10b, is substantially greater in depth than the diameter of the core section 10b.
  • the novel yarn product is quite bulky in relation to its untextured source, shown in FIG. 1, and has surface characteristics distinct from that source and also from prior art yarn.
  • the Waves 11 are comprised of a number of loosely compacted and spaced apart filaments, this bulkiness is imparted by displacement of relatively few filaments, so that the substantial majority of the filaments from the source yarn remain in the core section 10b.
  • Adjacent waves 11 are not formed of the same selected filaments but are composed of a different group of filaments coming out of the core area 11b. A relatively large number of filaments remains in the core section 10b from wave to wave and each wave retains its separate identity from the adjacent waves because its included filaments are returned to and gripped by the relatively closely packed core section 10b.
  • EXAMPLE 1 A continuous filament fibrous glass yarn comprised of a single strand of filaments having an average diameter of 0.00029 inch with a 1/0 Z twist was run through a fluid jet, of the type described in my copending application Ser. No. 407,758, originally filed Oct. 30, 1964, now U.S. Patent 3,381,346 supplied with air at p.s.i.g. The yarn was fed to and taken-up from the jet in an apparatus similar to that shown in FIGS. 4-6. The exit speed of the bulked yarn from the jet was 3,000 feet per minute.
  • the bulked yarn made in this example had a breaking strength of 2.6 pounds and, under microscopic inspection, was found to be characterized by the absence of broken filaments and by the presence of the undulatory Wavelike surface convolutions shown in FIG. 1.
  • the bulkiness of the product was uniform throughout the length of the test samples. It appeared that the surface fibers of a particular wave returned on each side of the wave to the opposite side of a relatively dense core portion and that the height of the waves from their outermost fiber or crest to the core portion was substantially greater than the diameter of the core portion itself. Samples in accordance with this example were further characterized by the absence of closed or crunodal loops.
  • Woven textile products using the bulked yarn of this example had a uniform surface characteristic due to the uniformity of the bulked yarn.
  • the yarn of this example may be Woven as is or may be given an additional twist prior to weaving.
  • Air pressure Exit speed of Appearance of the bulked prodto jet bulked yarn uct is characterized by Example (p.s.i.g.) (f.p.m.)
  • the yarn of this invention is due to (a) very high turbulence which is capable of agitating and separating groups of surface filaments and pushing these groups laterally away from the body of the yarn and (b) high rates of yarn travel by which successive increments of yarn are passed through the turbulent zone at a speed sufiicient to prevent filament breakage or formation of closed or crunodal loops.
  • Such high speeds in excess of 2000 f.p.m. have been impossible to attain prior to the development of the apparatus of this invention, described below in detail.
  • FIGS. 4, 5 and 6 the preferred embodiment of an apparatus for textun'ng a yarn in accordance with the concepts of this invention is shown in detail.
  • a horizontal platform 13 supports a vertically extending housing 14 and a winder mechanism 15.
  • Extending below the support platform 13 is a yarn supply, generally designated by reference numeral 16 and a liquid sizing applicator 17 whose function will be subsequently explained.
  • a fluid jet 18 having an inlet orifice 19 and an outlet orifice 20 with a general axial passage 21 extending therethrough is secured to the front face of the housing 14 with a fluid supply line 22 connected to a source of fluid or air pressure (not shown).
  • the construction and operation of such fluid jets are well known in the prior art.
  • the jet used in this apparatus may be of the type disclosed in U.S. Patent 2,994,438 but is preferably of the type disclosed in my copending application, Ser. No. 407,758, originally filed Oct. 30, 1964, now U.S. Patent 3,381,346.
  • a pair of double diameter, coaxial yarn feed and takeup rollers 23 and 24 are secured to rotating shafts 25 and 26, respectively, which shafts 25 and 26 are journaled for rotation on parallel axes in the housing 14 by suitable bearings 27 and 28, schematically shown in FIG. 5.
  • a suitable drive mechanism such as an electric motor M is connected by a belt 29 to a pulley 30 which is secured to the shaft 25.
  • a second belt 31 extends around a second pulley (not shown) secured to the shaft 25 and around a pulley 32 secured to the shaft 26. Clockwise rotation of the motor, in the direction shown by the arrow in FIG. 6 will turn both the yarn feed and take-up rollers 23 and 24 in the same clockwise direction.
  • the peripheral or surface speed of each of the rollers 23 and 24 be identical at corresponding points on their surfaces. If the rollers 23 and 24 are of the same size, the pulleys connecting the drive belts 29 and 31 should also be of the same size. If the rollers 23 and 24 are of a different size, the size of their corresponding pulleys should be adjusted so that the surface or peripheral speed of the rollers 23 and 24 is the same for corresponding points on their outer diameters.
  • each of these rollers includes a first cylindrical section 33 having a diameter D and a second coaxially secured cylindrical section 34 having a diameter d which is smaller than the diameter D.
  • the positioning of the inlet orifice 19 and outlet orifice 20 of the jet 18 in relation to the external yarn bearing surfaces of the cylindrical sections 33 and 34 of the rollers 23 and 24 is important to assure that the apparatus is capable of feeding and withdrawing yarn to and from the jet 18 at high speed.
  • the axial passage 21, which connects the inlet and outlet orifices 19 and 20 and is hereinafter referred to as the axis of the jet 18, lies in a plane which is tangential to the outer or yarn bearing surface of the larger cylindrical section 33 of the roller 23.
  • a line passing through the outlet orifice 20 and normal to the axis of the jet is tangential to the outer surface of the smaller cylindrical section 34 of the roller 24.
  • This angular placement 'of the jet accomplishes three things. First, it places the inlet orifice 19 of the jet in a plane normal to the rotational axes of the rollers 23 and 24 and passing through the midpoint of the yarn bearing surface of the cylindrical section 33 of the roller 23 so that yarn supported on this surface at its middle is directed downwardly directly into the jet orifice 19.
  • the angle between the jet axis and the direction of the entering yarn, a, as shown in FIG. 5, is preferably about 10 which is sufi'icient to avoid the jet blow-back and yet permit the yarn to be fed into the interior of the jet 18 without striking, at a large angle, the edges of the inlet orifice 19 or other portions in the throat of the jet 18.
  • yarn from the yarn supply 16 is directed through a yarn guide or pigtail 35 upwardly, thence around and between the outer surfaces of the larger cylindrical sections 33 of each of the rollers 23 and 24.
  • the expression around and between" the yarn feed and take-up rollers 23 and 24 defines the path of the yarn shown in FIG. 4 in which the yarn is led around the remote outer surface of one of the rollers thence directly to the other roller, thence around its remote outer surface and back, without directly encircling either of the individual rollers 23 or 24.
  • the untextured yarn is directed around and between the outer surfaces of the cylindrical sections 33 a number of times sufficient to provide enough engagement with these surfaces to prevent slippage as the yarn is being withdrawn from the yarn supply 16 when the rollers are driven at high speed.
  • the yarn is directed from the surface of the section 33 of the roller 23 downwardly to the inlet orifice 19 of the jet 18, through the jet 18 and then from the outlet orifice 20 directly to the outer surface of the cylindrical section 35 of the roller 24.
  • the yarn is then directed around and between the cylindrical sections 34 of both rollers 23 and 24 for a sufiicient number of turns to insure against slipping as the yarn is withdrawn from the jet when the rollers 23 and 24 are driven at high speed.
  • Constant tension Winders such as those commercially available from a number of manufacturers include a tension sensing mechanism, such as a tension arm 37, which, through electrical or electrical-mechanical controls will vary the winding speed of the yarn package on its mandrel in accordance with variations in the tension of the yarn being wound.
  • the textured yarn after being led around the roller 36, is taken directly to a yarn package 38, wound on a mandrel 39 of the constant tension winder which includes a traverse mechanism 40. As seen in FIG. 4, the yarn leaving or passing by the roller 36 is contacted by the lowermost portion of a liquid size applicator 17.
  • the application of size to the bulked yarn after it leaves the jet '18 is desirable in certain instances to partially assist in holding the bulked waves 11 in place and further lock the filaments in their relation to one another. It is also desirable in assuring a uniform pack-age buildup on the mandrel 39 and prevents drafting or flattening of the bulked yarn.
  • Suitable liquid sizing may be starch, hot melt or solvent type coatings presently commercially available from a number of sources.
  • the bulked yarns may be heat set or thermally relaxed by passing them through a zone of heat sufficient to fix them in their bulked or undulatory configurations.
  • an elongate mufile furnace or open flame having a sufficiently high temperature to set the individual filaments may be used. This, of course, must be done prior to applying an appropriate size which may be added after the heat setting.
  • composite yarns made up of continuous glass fibers and other fibers such as resin fibers of polyethylene, tetrafiuoroethylene or a polyamide can also be texturized by the present technique and then heat set.
  • the resin fibers can be selectively heat set to lock in the textured condition of the glass fibers with the glass uneffected by the heat.
  • the resin fibers can also be heated to a plastic condition to effect cohesion of the resin fibers to the glass fibers.
  • the principle of using at least two driven feed rollers can be eflectively utilized in a system in which separate yarn sources are combined in a fluid jet to produce a composite bulky product.
  • a process which combines two separate yarn sources such as is disclosed in US. Patent 2,869,967
  • one source of untextured yarn is overfed to the jet at a first rate while a second source is overfed to the jet at a second rate which is faster than the first overfeed rate.
  • the first and second yarns which may be designated as core and effect yarns, are combined within the jet so that the core yarns maintain generally untextured and linear configurations While the effect yarns, which are overfed at a great rate, form the surface convolutions which give bulk to the composite product.
  • each of the feed and take-up rollers would include three coaxial cylindrical sections of diflFerent diameter.
  • the first feed section for the eifect yarn would have the greatest diameter
  • the second feed section for the core yarn would have an intermediate size diameter
  • the third section for the takeup of the composite yarn would have the smallest diameter.
  • a jet could be positioned in relation to the feed and take-up surface so that the yarn is withdrawn from the outlet orifice at an angle normal to the axis of the jet and so that the entering yarn from each of the core and effect feed roll surfaces is directed to the jet in a direction slightly displaced from the axis of the jet.
  • the apparatus shown in FIGS. 4 through 6 is capable of obtaining higher speeds in feeding and withdrawing yarn to and from a fluid jet at a fixed rate of overfeed than have heretofore been obtainable with other prior art drive and take-up mechanisms.
  • the apparatus described due to its ability to feed yarn through the area of fluid turbulence within the jet at such high speed, produces a different texturing action which results in the novel product characterized by the absence of broken filaments, the absence of crunodal loops, and the presence of undulatory waves comprised of selected ones of the filaments in the core area which return to the core area on either side of each wave and remain bound in place by relatively dense compaction of the core area which remains intact throughout the process.
  • fabrics, woven or unwoven, comprised of the improved bulked yarn of this invention are characterized by the appearance and texture of cotton, silk or woolen fabric. Because of the lofty or open nature of these yarns, fabrics composed of it also have superior wetting or impregnation characteristics when used as reinforcing in fiber-reinforced plastics. Resin laminates made of a plurality of resin impregnated fabric layers have better lamination strength due to thorough penetration or impregnation of the resin into the individual yarns of the fabric and due to the lateral extension of the lofted fibers toward the interfaces of the lamination or adjacent layers of fabric.
  • a method of producing a bulky textile product comprising the steps of:

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
US605700A 1966-05-18 1966-12-29 Method of bulking yarn Expired - Lifetime US3448500A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US551091A US3411287A (en) 1966-05-18 1966-05-18 Fancy yarn
US60570066A 1966-12-29 1966-12-29

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US3448500A true US3448500A (en) 1969-06-10

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US (1) US3448500A (cs)
JP (1) JPS5125494B1 (cs)
AT (1) AT299019B (cs)
BE (1) BE698562A (cs)
BR (1) BR6789464D0 (cs)
CH (1) CH469110A (cs)
CS (1) CS177005B2 (cs)
DE (1) DE1710652A1 (cs)
DK (1) DK126661B (cs)
FI (1) FI48109C (cs)
FR (1) FR1523024A (cs)
GB (2) GB1181004A (cs)
IL (1) IL27906A (cs)
LU (1) LU53690A1 (cs)
NL (2) NL150526B (cs)
SE (1) SE331153B (cs)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678549A (en) * 1969-03-17 1972-07-25 Rhodiaceta Process for the manufacture of high-bulk yarn
US3763526A (en) * 1971-07-26 1973-10-09 Owens Corning Fiberglass Corp Apparatus for clearing and texturing linear material
US3775228A (en) * 1971-06-08 1973-11-27 Owens Corning Fiberglass Corp Composite linear elements
US3832840A (en) * 1972-08-10 1974-09-03 Owens Corning Fiberglass Corp Fibrous product and apparatus for and method of producing
US3900302A (en) * 1972-08-10 1975-08-19 Owens Corning Fiberglass Corp Method for producing glass fiber bulk product
US4009563A (en) * 1973-11-10 1977-03-01 Bayer Aktiengesellschaft Apparatus for false-twisting synthetic filament yarns
US4570312A (en) * 1983-11-29 1986-02-18 Whitener Jr Charles G Method and apparatus for producing entangled yarn
US20170355550A1 (en) * 2014-12-26 2017-12-14 Toray Industries, Inc. Method of manufacturing and manufacturing device for partial split-fiber fiber bundle and partial split-fiber fiber bundle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3909516A1 (de) * 1989-03-22 1990-01-04 Hirschburger Maschinen Gmbh Lufttexturiermaschine
DE4130059C2 (de) * 1991-09-10 1996-04-04 Zinser Textilmaschinen Gmbh Maschine zum Behandeln synthetischer, multifiler Endlosfäden

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2783609A (en) * 1951-12-14 1957-03-05 Du Pont Bulky continuous filament yarn
US2852906A (en) * 1951-12-14 1958-09-23 Du Pont Method and apparatus for producing bulky continuous filament yarn
US2874443A (en) * 1953-05-12 1959-02-24 Du Pont Method and apparatus for crimping yarn
US2884756A (en) * 1953-01-12 1959-05-05 Eastman Kodak Co Apparatus and method for producing bulk yarn
US2958112A (en) * 1956-08-16 1960-11-01 Du Pont Yarn-treating apparatus
US2959909A (en) * 1957-04-01 1960-11-15 American Enka Corp Bulked yarn and method for producing same
US2982082A (en) * 1954-10-20 1961-05-02 British Celanese Production of voluminous yarn
US3053038A (en) * 1957-12-06 1962-09-11 Heberlein Patent Corp Method and apparatus for texturing yarns
US3084413A (en) * 1961-11-01 1963-04-09 Du Pont Yarn fluid treatment apparatus
US3110151A (en) * 1961-05-26 1963-11-12 Du Pont Process for producing compact interlaced yarn

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2783609A (en) * 1951-12-14 1957-03-05 Du Pont Bulky continuous filament yarn
US2852906A (en) * 1951-12-14 1958-09-23 Du Pont Method and apparatus for producing bulky continuous filament yarn
US2884756A (en) * 1953-01-12 1959-05-05 Eastman Kodak Co Apparatus and method for producing bulk yarn
US2874443A (en) * 1953-05-12 1959-02-24 Du Pont Method and apparatus for crimping yarn
US2982082A (en) * 1954-10-20 1961-05-02 British Celanese Production of voluminous yarn
US2958112A (en) * 1956-08-16 1960-11-01 Du Pont Yarn-treating apparatus
US2959909A (en) * 1957-04-01 1960-11-15 American Enka Corp Bulked yarn and method for producing same
US3053038A (en) * 1957-12-06 1962-09-11 Heberlein Patent Corp Method and apparatus for texturing yarns
US3110151A (en) * 1961-05-26 1963-11-12 Du Pont Process for producing compact interlaced yarn
US3084413A (en) * 1961-11-01 1963-04-09 Du Pont Yarn fluid treatment apparatus

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678549A (en) * 1969-03-17 1972-07-25 Rhodiaceta Process for the manufacture of high-bulk yarn
US3775228A (en) * 1971-06-08 1973-11-27 Owens Corning Fiberglass Corp Composite linear elements
US3763526A (en) * 1971-07-26 1973-10-09 Owens Corning Fiberglass Corp Apparatus for clearing and texturing linear material
US3832840A (en) * 1972-08-10 1974-09-03 Owens Corning Fiberglass Corp Fibrous product and apparatus for and method of producing
US3900302A (en) * 1972-08-10 1975-08-19 Owens Corning Fiberglass Corp Method for producing glass fiber bulk product
US4009563A (en) * 1973-11-10 1977-03-01 Bayer Aktiengesellschaft Apparatus for false-twisting synthetic filament yarns
US4570312A (en) * 1983-11-29 1986-02-18 Whitener Jr Charles G Method and apparatus for producing entangled yarn
US20170355550A1 (en) * 2014-12-26 2017-12-14 Toray Industries, Inc. Method of manufacturing and manufacturing device for partial split-fiber fiber bundle and partial split-fiber fiber bundle
US10676311B2 (en) * 2014-12-26 2020-06-09 Toray Industries, Inc. Method of manufacturing and manufacturing device for partial split-fiber fiber bundle and partial split-fiber fiber bundle

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Publication number Publication date
DK126661B (da) 1973-08-06
DE1710652A1 (de) 1972-05-25
AT299019B (de) 1972-06-12
GB1181005A (en) 1970-02-11
NL7610810A (en) 1977-01-31
CH469110A (de) 1969-02-28
NL161515B (nl) 1979-09-17
IL27906A (en) 1970-08-19
SE331153B (cs) 1970-12-14
GB1181004A (en) 1970-02-11
FR1523024A (fr) 1968-04-02
FI48109C (fi) 1974-06-10
BE698562A (cs) 1967-11-17
LU53690A1 (cs) 1968-02-21
NL161515C (nl) 1980-02-15
CS177005B2 (cs) 1977-07-29
NL150526B (nl) 1976-08-16
BR6789464D0 (pt) 1973-06-14
JPS5125494B1 (cs) 1976-07-31
FI48109B (cs) 1974-02-28
NL6706852A (cs) 1967-11-20

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