US3335478A - Process for the manufacture of multicolored tufted fabrics - Google Patents

Process for the manufacture of multicolored tufted fabrics Download PDF

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US3335478A
US3335478A US474580A US47458065A US3335478A US 3335478 A US3335478 A US 3335478A US 474580 A US474580 A US 474580A US 47458065 A US47458065 A US 47458065A US 3335478 A US3335478 A US 3335478A
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yarns
multicolored
tufted
yarn
fabric
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US474580A
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Brewster B Eskridge
Dan H Satterwhite
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Akzona Inc
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American Enka Corp
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Priority to US474580A priority Critical patent/US3335478A/en
Priority to FR67896A priority patent/FR1485301A/en
Priority to NL6609178A priority patent/NL6609178A/xx
Priority to ES0329420A priority patent/ES329420A1/en
Priority to DE1966A0053092 priority patent/DE1510508B2/en
Priority to GB33607/66A priority patent/GB1111100A/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
    • 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
    • D02G3/34—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns
    • D02G3/346—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns with coloured effects, i.e. by differential dyeing process
    • 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
    • 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
    • D02G1/20—Combinations of two or more of the above-mentioned operations or devices; After-treatments for fixing crimp or curl
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/229—Relaxing
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C17/00—Embroidered or tufted products; Base fabrics specially adapted for embroidered work; Inserts for producing surface irregularities in embroidered products
    • D05C17/02—Tufted products
    • D05C17/026—Tufted products characterised by the tufted pile surface
    • 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
    • D10B2401/00—Physical properties
    • D10B2401/14—Dyeability
    • 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
    • D10B2503/00—Domestic or personal
    • D10B2503/04—Floor or wall coverings; Carpets

Definitions

  • PROCESS FOR THE MANUFACTURE OF MULTICOLORED TUFTED FABRICS Filed July 26, 1965 INVENTORS B. B, ESKR I DGE D. H. SATTEFZWHITE ATTURNEY United States Patent 3,335,478 PROCESS FOR THE MANUFACTURE OF MULTICOLORED TUFTED FABRICS Brewster B. Eskridge, Asheville, and Dan H. Satterwhite,
  • This invention relates to a process and apparatus for the production of tufted carptes, rugs, upholstery, and other napped fabrics. More particularly, the invention relates to the production of multicolored carpets from synthetic linear high polymer yarns such as nylon, polyester, prolypopylene, and the like.
  • Fiber producers and carpet manufacturers have, for several years, manufactured carpets from a plurality of differently colored yarns to produce various color combinations so as to present a tweed or salt-and-pepper appearance in the tufted product.
  • yarns of different colors, or yarns capable of producing different color effects when dyed are combined by playing into a single strand.
  • the subject yarns are spun, draw twisted, textured, and plied in various combinations to produce the color combination desired.
  • the resulting yarn product is then tufted into a fabric having a tweed or salt-and-pepper appearance in which each color in the plied yarns can be distinguished. Due to the regularly repeating patterns imparted to the yarns by the plying operation, all such tufted carpets contain streaks whenever individual tufts are of sufficient height to place the repeating ply patterns in phase. For this reason, all multicolored carpets produced from. plied yarns contain streaks in varying degrees.
  • An additional object of the invention is to produce a streak-free textile fabric in which a more suitable color blending can be obtained when yarns of different colors or of different dye characters are combined in a random fashion, rather than by uniform plying.
  • two differently colored untwisted, undrawn yarns 10 are propelled from a suitable source (not shown) to a feed godet 11, the yarns being held in parallel by a presser roll 12. From the godet 11 the yarns are passed to and around a draw pin 13 and thence to a draw godet 14. They are wrapped several times around the draw godet and adjacent idler roller 15. The draw godet is rotated (by means not shown) at an r.p.m. higher than that of the feed roll 11 so as to effect the desired drawing of the yarns on the draw pin 13. In order to maintain the yarns separate until they reach the twisting device, a separator pin 16 is mounted below godet 14. Yarn 10!: passes on one side of the pin and yarn 10b passes on the other side. They are brought together through pigtail guide 17 and twisted less than one turn per inch on ring twister 18.
  • a streak-free multicolored textile fabric can be produced by combining yarns of at least two different colors or color characteristics before twist is inserted into any of the individual yarns. It has been found that if such yarns are combined and drawn in an untwisted state and subsequently twisted on a ring twister, the yarns cohere sufficiently to enable them to be simultaneously bulked and then tufted. The resulting tufted fabric which contains yarn having a low twist produces a multicolor combination free of streaks.
  • each yarn is collected on a spin winder package. It is then collected on a draw winder package (untwisted) separately. These yarns are combined on a ring twister by inserting one-half turn per inch.
  • the subject yarns are spun and draw twisted on a conventional draw twister.
  • the disimilar yarns to be combined are paralleled in the untwisted state and combined into a single package on a ring-type twister take-up.
  • the composite yarn contains a production twist of a fraction of a turn per inch, e.g., approximately one half S or Z turn per inch. It is critical that the yarn must not be twisted as much as one turn per inch, because it has been determined that such yarn, when tufted into a carpet fabric, has the same objectionable streakiness inherein in plied yarns.
  • the composite yarn on the draw twister package may then be subjected to a texturing or bulking step.
  • a texturing or bulking step is generally accomplished by passing the composite yarn through a conventional stuffer box crimping device, although the yarn may be textured by other systems.
  • the composite yarn is found to have sufficient cohesion to enable it to be quite satisfactorily tufted into a fabric. It has quite surprisingly been found that the usual plying step heretofore necessary in the multicolored tufted fabric production may be omitted and tufting operations are found to be unhindered thereby.
  • EXAMPLE I One end normal nylon plus one end of differential dyeing (acid resist) nylon Each component yarn was spun separately to give a 1040/ 68 yarn if drawn at a ratio of 3.5 to 1. The undrawn yarns were collected on winder packages and then placed on the draw twister so that one end of the normal dyeing yarn and one end of the differential dyeing yarn were fed to the same set of draw godets. The two yarns were maintained in a parallel but separate position during drawing (3.5 to 1) to prevent intermingling of filaments. After drawing, the two parallel yarns were combined and twisted to one-half turn per inch and wound onto a pirn. Normal bulking and tubing procedures were then followed.
  • EXAMPLE II One end normal nylon plus one end of polyester Each yarn was spun, collected on a spin winder package, drawn and collected on a draw winder package (untwisted) separately.
  • the yarn was cold drawn at a ratio of 3.5 to 1 to give a denier of 1040/ 68.
  • the polyester was drawn at a ratio of 6:1 over a 75 C. pin and relaxed over a 180 C. hot plate. The resulting denier was also 1040/68.
  • the two zero twist drawn yarns were combined on a ring twister by inserting one-half turn per inch. Normal bulking and tubing procedures were then followed.
  • a method of producing a multicolored carpet fabric which comprises (a) propelling in parallel side-by-side relationship from a suitable source at least two substantially un drawn and untwisted continuous filament synthetic linear high polymer yarns having dillerent dye characteristics while maintaining the yarns separate one from the other,

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Description

15, 1967 B. B. ESKRIDGE ETAL 3,335,47$
PROCESS FOR THE MANUFACTURE OF MULTICOLORED TUFTED FABRICS Filed July 26, 1965 INVENTORS B. B, ESKR I DGE D. H. SATTEFZWHITE ATTURNEY United States Patent 3,335,478 PROCESS FOR THE MANUFACTURE OF MULTICOLORED TUFTED FABRICS Brewster B. Eskridge, Asheville, and Dan H. Satterwhite,
West Asheville, N.C., assignors to American Enka Corporation, Enka, N.C., a corporation of Delaware Filed July 26, 1965, Ser. No. 474,580 3 Claims. (CI. 2872) This invention relates to a process and apparatus for the production of tufted carptes, rugs, upholstery, and other napped fabrics. More particularly, the invention relates to the production of multicolored carpets from synthetic linear high polymer yarns such as nylon, polyester, prolypopylene, and the like.
Fiber producers and carpet manufacturers have, for several years, manufactured carpets from a plurality of differently colored yarns to produce various color combinations so as to present a tweed or salt-and-pepper appearance in the tufted product.
In the normal manner of production, yarns of different colors, or yarns capable of producing different color effects when dyed, are combined by playing into a single strand. The subject yarns are spun, draw twisted, textured, and plied in various combinations to produce the color combination desired. The resulting yarn product is then tufted into a fabric having a tweed or salt-and-pepper appearance in which each color in the plied yarns can be distinguished. Due to the regularly repeating patterns imparted to the yarns by the plying operation, all such tufted carpets contain streaks whenever individual tufts are of sufficient height to place the repeating ply patterns in phase. For this reason, all multicolored carpets produced from. plied yarns contain streaks in varying degrees. Such a method of plying to produce a multicolored carpet is disclosed in US. Patent No. 3,101,522. In this patent, a composite strand of three yarns, after being made into a fabric, is dyed in a single dye bath to produce a variegated colored textile article. Although multicolored tufted fabrics such as carpets, rugs, upholstery, etc., may be produced by plying predyed yarns of different colors, it is advantageous to be able to dye such articles in the piece, i.e., after the yarn has been knit, woven, or tufted into the fabric. In either case, the method of combination of the yarns in the same and, since the yarns are twisted and plied, the resulting tufted fabrics show a streakiness due to the aforementioned repeating ply patterns.
Since it is recognized that any multicolored twisted or plied strand, when tufted, will produce a streaky product, there has been much effort to tuft the multicolored yarns Without the necessity of a plying or twisting step. However, it has been found that if the dissimilar yarns do not have a certain amount of cohesion when combined, they cannot be handled properly after subsequent text-uring or tufting. Without the coherence produced by plying the yarns, they tend to separate and cannot be handled as a single, mul-ticomponent strand required for tufting operations. It has been proposed to parallel two differently colored yarns or two yarns having different dye characteristics while in a zero twist and intermittently tangle three yarns by the use of an air jet to create the cohesion necessary to enable the yarns to be textured and tufted. However, this air jet tangling step is quite costly and involves additional time and labor. Moreover, when fabrics are produced by yarns which have been intermittently tangled and dyed, a blotchy or mottled effect, caused by the dissimilar dye absorption in the fabric at the yarn tangle points, can be seen.
It is therefore an object of the present invention to provide a process for producing tufted multicolored carpet fabrics in which the disadvantages and imperfections of the prior art processes are largely overcome.
It is a further object of the invention to provide a convenient, inexpensive process and apparatus for producing a streak-free multicolored tufted carpet.
An additional object of the invention is to produce a streak-free textile fabric in which a more suitable color blending can be obtained when yarns of different colors or of different dye characters are combined in a random fashion, rather than by uniform plying.
The manner in which these and other objects of the invention are obtained will become apparent from a study of the following description, when considered in conjunction with the accompanying drawing wherein the figure represents a schematic view of the apparatus of this invention.
In the figure, two differently colored untwisted, undrawn yarns 10 are propelled from a suitable source (not shown) to a feed godet 11, the yarns being held in parallel by a presser roll 12. From the godet 11 the yarns are passed to and around a draw pin 13 and thence to a draw godet 14. They are wrapped several times around the draw godet and adjacent idler roller 15. The draw godet is rotated (by means not shown) at an r.p.m. higher than that of the feed roll 11 so as to effect the desired drawing of the yarns on the draw pin 13. In order to maintain the yarns separate until they reach the twisting device, a separator pin 16 is mounted below godet 14. Yarn 10!: passes on one side of the pin and yarn 10b passes on the other side. They are brought together through pigtail guide 17 and twisted less than one turn per inch on ring twister 18.
It is imperative that a separator means such as pin 16 be utilized between the two yarns after the drawing but before the ring twister. This prevents intermingli ng of the differently colored filaments which would otherwise show up in the carpet fabric as a blurred third color rather than having a distinct two-tone effect.
A streak-free multicolored textile fabric can be produced by combining yarns of at least two different colors or color characteristics before twist is inserted into any of the individual yarns. It has been found that if such yarns are combined and drawn in an untwisted state and subsequently twisted on a ring twister, the yarns cohere sufficiently to enable them to be simultaneously bulked and then tufted. The resulting tufted fabric which contains yarn having a low twist produces a multicolor combination free of streaks.
If dissimilar yarns requiring different drawing conditions such as different draw ratios and temperatures are used, then each yarn is collected on a spin winder package. It is then collected on a draw winder package (untwisted) separately. These yarns are combined on a ring twister by inserting one-half turn per inch.
To produce a tufted textile fabric, the subject yarns are spun and draw twisted on a conventional draw twister. During twisting, the disimilar yarns to be combined are paralleled in the untwisted state and combined into a single package on a ring-type twister take-up. At this point, the composite yarn contains a production twist of a fraction of a turn per inch, e.g., approximately one half S or Z turn per inch. It is critical that the yarn must not be twisted as much as one turn per inch, because it has been determined that such yarn, when tufted into a carpet fabric, has the same objectionable streakiness inherein in plied yarns.
The composite yarn on the draw twister package may then be subjected to a texturing or bulking step. Such a step is generally accomplished by passing the composite yarn through a conventional stuffer box crimping device, although the yarn may be textured by other systems.
After the drawing and bulking operations, the composite yarn is found to have sufficient cohesion to enable it to be quite satisfactorily tufted into a fabric. It has quite surprisingly been found that the usual plying step heretofore necessary in the multicolored tufted fabric production may be omitted and tufting operations are found to be unhindered thereby.
The following examples will serve to exemplify the invention.
EXAMPLE I One end normal nylon plus one end of differential dyeing (acid resist) nylon Each component yarn was spun separately to give a 1040/ 68 yarn if drawn at a ratio of 3.5 to 1. The undrawn yarns were collected on winder packages and then placed on the draw twister so that one end of the normal dyeing yarn and one end of the differential dyeing yarn were fed to the same set of draw godets. The two yarns were maintained in a parallel but separate position during drawing (3.5 to 1) to prevent intermingling of filaments. After drawing, the two parallel yarns were combined and twisted to one-half turn per inch and wound onto a pirn. Normal bulking and tubing procedures were then followed.
EXAMPLE II One end normal nylon plus one end of polyester Each yarn was spun, collected on a spin winder package, drawn and collected on a draw winder package (untwisted) separately. In the case of the nylon, the yarn was cold drawn at a ratio of 3.5 to 1 to give a denier of 1040/ 68. The polyester was drawn at a ratio of 6:1 over a 75 C. pin and relaxed over a 180 C. hot plate. The resulting denier was also 1040/68. The two zero twist drawn yarns were combined on a ring twister by inserting one-half turn per inch. Normal bulking and tubing procedures were then followed.
Whereas the invention has been described in connection with combining two differently colored yarns, it is to be understood that three or more may be combined, provided they are maintained separate until they reach the ring twister.
Moreover, when the expression dilferently colored 4 yarns is employed, it is intended to cover yarns having dissimilar dye characteristics which will provide multicolored fabrics when dyed in fabric form.
What is claimed is:
1. A method of producing a multicolored carpet fabric which comprises (a) propelling in parallel side-by-side relationship from a suitable source at least two substantially un drawn and untwisted continuous filament synthetic linear high polymer yarns having dillerent dye characteristics while maintaining the yarns separate one from the other,
(b) simultaneously drawing said yarns while preventing intermingling of the filaments,
(c) collecting said yarns while plying them together into a composite yarn with a ply twist of not more than a fraction of a mm per inch, and
(d) tufting the composite yarn into a car-pet which is characterized by an absence of color streakiness throughout its surface.
2. A method of producing a multicolored carpet fabric as set forth in claim 1 wherein the yarns are of at least two diiferent colors.
3. A method of producing a multicolored carpet fabric as set forth in claim 1 and including the additional step of bulking said composite yarn prior to t-ufting into a carpet fabric.
References Cited UNITED STATES PATENTS 2,132,753 10/ 1938 Nelson 2871.3 2,328,074 8/1943 Hunter 57140 2,407,358 9/ 1946 Whisnant 5755.5 2,979,882 .4/1961 Bromley et al. 5755.5 2,988,867 6/1961 Quittner 57-157 3,009,310 11/1961 Murchie et a1 57-140 3,022,545 2/1962 Wylde et al. 28--72 3,177,644 4/1965 Aspy et al. 57-140 MERVIN STEIN, Primary Examiner.
L. K. RIMRODT, Assistant Examiner.

Claims (1)

1. A METHOD OF PRODUCING A MULTICOLORED CARPET FABRIC WHICH COMPRISES (A) PROPELLING IN PARALLEL SIDE-BY-SIDE RELATIONSHIP FROM A SUITABLE SOURCE AT LEAST TWO SUBSTANTIALLY UNDRAWN AND UNTWISTED CONTINUOUS FILAMENT SYNTHETIC LINEAR HIGH POLYMER YARNS HAVING DIFFERENT DYE CHARACTERISTICS WHILE MAINTAINING THE YARNS SEPARATE ONE FROM THE OTHER, (B) SIMULTANEOUSLY DRAWING SAID YARNS WHILE PREVENTING INTERMINGLING OF THE FILAMENTS, (C) COLLECTING SAID YARNS WHILE PLYING THEM TOGETHER INTO A COMPOSITE YARN WITH A PLY TWIST OF NOT MORE THAN A FRACTION OF A TURN PER INCH, AND (D) TUFTING THE COMPOSITE YARN INTO A CARPET WHICH IS CHARACTERIZED BY AN ABSENCE OF COLOR STREAKNESS THROUGHOUT ITS SURFACE.
US474580A 1965-07-26 1965-07-26 Process for the manufacture of multicolored tufted fabrics Expired - Lifetime US3335478A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US474580A US3335478A (en) 1965-07-26 1965-07-26 Process for the manufacture of multicolored tufted fabrics
FR67896A FR1485301A (en) 1965-07-26 1966-07-01 Process for the manufacture of multicolored yarns as well as the yarns produced in this way and the textile products made from these yarns
NL6609178A NL6609178A (en) 1965-07-26 1966-07-01
ES0329420A ES329420A1 (en) 1965-07-26 1966-07-23 Procedure for the manufacture of multicolored hebras. (Machine-translation by Google Translate, not legally binding)
DE1966A0053092 DE1510508B2 (en) 1965-07-26 1966-07-25 METHOD OF MANUFACTURING CARPET YARN
GB33607/66A GB1111100A (en) 1965-07-26 1966-07-26 A process for the manufacture of composite threads and textile products composed of such threads

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US474580A US3335478A (en) 1965-07-26 1965-07-26 Process for the manufacture of multicolored tufted fabrics

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US3335478A true US3335478A (en) 1967-08-15

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US474580A Expired - Lifetime US3335478A (en) 1965-07-26 1965-07-26 Process for the manufacture of multicolored tufted fabrics

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US (1) US3335478A (en)
DE (1) DE1510508B2 (en)
ES (1) ES329420A1 (en)
GB (1) GB1111100A (en)
NL (1) NL6609178A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3412546A (en) * 1966-09-30 1968-11-26 Celanese Corp Interleaved moulinee yarn
US3543359A (en) * 1967-08-25 1970-12-01 Whitaker Co Fred Method of producing multicolored yarn
US5160347A (en) * 1990-10-05 1992-11-03 Burlington Industries, Inc. Multicolored piece-dyed rugs

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19746878B4 (en) * 1996-11-21 2008-01-24 Oerlikon Textile Gmbh & Co. Kg Method for producing a multicomponent thread

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2132753A (en) * 1938-10-11 Yarn and cord stretching apparatus
US2328074A (en) * 1940-07-16 1943-08-31 Du Pont Manufacture of textile yarn
US2407358A (en) * 1945-01-23 1946-09-10 American Enka Corp Method and apparatus for twisting thread
US2979882A (en) * 1959-07-15 1961-04-18 Chemstrand Corp Method and apparatus for stretching and twisting continuous filament yarn
US2988867A (en) * 1960-02-26 1961-06-20 Ind Rayon Corp Method of handling a plurality of yarns during processing
US3009310A (en) * 1958-02-03 1961-11-21 Us Rubber Co Article and method of producing the same
US3022545A (en) * 1956-09-06 1962-02-27 British Celanese Process for crimping cellulose triacetate fibers
US3177644A (en) * 1962-03-01 1965-04-13 Eastman Kodak Co Yarn product and method

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2132753A (en) * 1938-10-11 Yarn and cord stretching apparatus
US2328074A (en) * 1940-07-16 1943-08-31 Du Pont Manufacture of textile yarn
US2407358A (en) * 1945-01-23 1946-09-10 American Enka Corp Method and apparatus for twisting thread
US3022545A (en) * 1956-09-06 1962-02-27 British Celanese Process for crimping cellulose triacetate fibers
US3009310A (en) * 1958-02-03 1961-11-21 Us Rubber Co Article and method of producing the same
US2979882A (en) * 1959-07-15 1961-04-18 Chemstrand Corp Method and apparatus for stretching and twisting continuous filament yarn
US2988867A (en) * 1960-02-26 1961-06-20 Ind Rayon Corp Method of handling a plurality of yarns during processing
US3177644A (en) * 1962-03-01 1965-04-13 Eastman Kodak Co Yarn product and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3412546A (en) * 1966-09-30 1968-11-26 Celanese Corp Interleaved moulinee yarn
US3543359A (en) * 1967-08-25 1970-12-01 Whitaker Co Fred Method of producing multicolored yarn
US5160347A (en) * 1990-10-05 1992-11-03 Burlington Industries, Inc. Multicolored piece-dyed rugs

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ES329420A1 (en) 1967-05-16
DE1510508A1 (en) 1970-11-26
NL6609178A (en) 1966-08-25
GB1111100A (en) 1968-04-24
DE1510508B2 (en) 1976-12-30

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