US3849847A - Process for storing textile filaments in knitted form - Google Patents

Process for storing textile filaments in knitted form Download PDF

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Publication number
US3849847A
US3849847A US00309963A US30996372A US3849847A US 3849847 A US3849847 A US 3849847A US 00309963 A US00309963 A US 00309963A US 30996372 A US30996372 A US 30996372A US 3849847 A US3849847 A US 3849847A
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Prior art keywords
yarn
filaments
knitted
knitted structure
filament yarn
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US00309963A
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C Corbiere
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D7/00—Collecting the newly-spun products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • This invention relates to a process for storing textile yarns. More particularly, this invention relates to a process for storing freshly extruded thermoplastic textile filaments in a knitted form.
  • Synthetic filament spinning machines i.e., spinnerets
  • monoand multi-filament textile materials continuously while textile machines which utilize completely processed, i.e., drawn, stretched and twisted yarns, often work in a discontinuous manner since the supply to these machines is in the form of discreet packages, such as bobbins of textile yarn or filaments.
  • tail i.e., that portion of the spin-package which enables the package to be connected to the end of the package succeeding it (in the creel) is a very expensive operation and often subjects the freshly extruded yarns to stresses which tend to spoil the same making'them useless as textile materials.
  • Each of the storage means discussed above has a number of disadvantages, such as relatively compact masses or unevenly formed spin-packages. Changes in temperature, relative humidity and other environmental changes do not penetrate these packages completely and an uneven filament is produced due to such changes in temperature and humidity since only those filaments at the top and sides of the package are affected. Since freshly spun mono-filments and multifilaments must often be aged before they can be utilized, this uneven contact with the atmosphere creates uneven physical properties along the length of the filaments.
  • the most common storage method for freshly ex truded synthetic filaments is the winding of these filaments on a cylindrical or conical tube.
  • these spin-packages on a tube is a widely practiced storage method, there are a number of problems connected with the mere formation of such a package, such as proper crossing angle, shape of the generating lines, fraying or splitting of the filaments, but more importantly, during the formation of these spin-packages, the yarns must change directions by being guided through a-thread guide. These changes of directions cause an uneven drawing of the freshly extruded filaments, which creates structural differences eventually leading to unacceptable filaments which have varying dye affinity and structural properties, subsequent to drawing.
  • the opposite effect is a problem, namely, since the filaments are spun and quickly wound into a spinpackage, the inner layers during winding regain or absorb some water from the atmosphere and elongate, thereby softening the whole package, making winding virtually impossible, with unwinding causing tangles and other unacceptable feed properties.
  • the process of the present invention which is directed toward storing freshly extruded filaments without the necessity of any additional stabilization treatment, comprises spinning a fiber-forming polymer into filaments, immediately delivering these filaments to a circular one-end circular knitting machine, knitting these filaments into a continuous tubular non-revolving knitted article, delivering the knitted article into a storage container and cutting the knitted article when the container is full.
  • freshly spun, monoand multi-filment yarns may. be produced and stored in a neat and orderly manner while the filaments themselves may be properly and uniformly aged.
  • OBJECTS AND ADVANTAGES It is therefore the primary object of the present invention to provide a process for quickly and efficiently storing freshly spun, synthetic yarns so that the same may be uniformly stored and aged.
  • FIG. 1 is a schematic illustration showing how filaments produced by a spinnerette are directed into the knitting head of a one-end or a one-cut knitting machine and knitted into a tubular structure which is then directed to and laid up in a container;
  • FIG. 2 is a schematicillustration showing how the knitted tubular structure is cut for storage in an individual package
  • FIG. 3 is a schematic illustration showing a length of yarn deknitted from one tubular structure knotted to a length of yarn deknitted from another tubular structure and showing'how the yarn is deknitted by pulling the yarn through a yarn guide;
  • FIG. 4 if a schematic illustration showing a length of yarn composed of a plurality of filaments being drawn and then separated with each of the filaments being wound on a separate bobbin.
  • a one-end fixed head knitting machine By a one-end fixed head knitting machine is meant a machine which is exclusively fed with and which works with only one yarn per knitting head.
  • the yarn may be either a mono-filament yarn or a multi-filament yarn and is delivered along the axis of the knitting machine around which it rotates to form a spiral producing a tubular fabric which is formed by knitting loops of the yarn.
  • the knitting needles do not rotate about the axis of the machine. Consequently, the tubular fabric produced does not rotate.
  • any synthetic monoor multi-filament having any particular corss-section, either circular or lobal or any other desired filament cross-section may be spun utilizing a conventional spinneret and utilizing either a wet spinning or a dry or melt spinning process.
  • the filaments are then taken directly from the output of the spinneret or spinning device and directly delivered to a circular knitting machine.
  • a lubricant such as by passing the yarns over a lubricant contact device, such as a coated roller, without applying any tension or drawing to the freshly spun filaments.
  • a conventional lubricant which may be any conventional lubricant or sizing agent employed in the textile industry for the particular synthetic yarn being produced, aids in producing an even knit in the cylindrical knitted article.
  • These freshly extruded monoand multi-filaments are then, subsequent to the optional lubricating step, directed to the input of a circular one-end, fixed-head, knitting machine.
  • These filaments are delivered to the knitting head by passing along the axis of the cylindrical knitted article and distributed around the knitted circular knitting head under constant tension by a revolving supply element, rotating around the axis of the knitting head.
  • These filaments are then knitted under constant tension into the tubular knitted article which is then directly delivered from the knitting head to a supply or storage container.
  • the speed at which the knitting machine or knitting process step is conducted is preferably approximately equal to the spinning speed for these synthetic monoand multi-filament yarns.
  • the freshly extruded filaments are uniformly subjected to stabilization, aging and tension, both during the formation of'the knitted article and during subsequent treatments which may include washing, sizing, dyeing, etc.
  • stabilization aging and tension
  • subsequent treatments which may include washing, sizing, dyeing, etc.
  • this twist is reversed or taken out when the articles are subsequently deknitted for use.
  • the operator can easily locate the starting or tail strand for the storage article so that the same may be easily connected to the preceding and following storage packages in use.
  • any conventional storage canister may be utilized, it is preferred to utilize a disposable storage canister having a plastic film lining which can be sealed immediately after filling, thereby assuring the filaments will be subjected to constant humidity and temperature conditions during storage and transportation.
  • the storage package of the present invention is subsequently used as supply for other textile apparatus simply by taking the leading tail end of the yarn and deknitting the entire tubular package.
  • Synthetic filaments which may be produced in accordance with the process of the present invention include any conventional filaments generally utilized in the textile industry, including polyethylene terephthalate,
  • FIG. 1 there is shown a spinnerette 10 which produces a'plurality of filaments 11-11 that are converged by a guide 12 to form a strand of yarn 13.
  • the yarn 13 is lubricated by an oiling station 14 and is advanced by a yarn pull system 16 into-a second convergence guide 17. From the second convergence guide 17, the yarn strand 13 enters the knitting head 18 of a-one-end, or rather one-cut, knitting machine 19 through an opening 21. As the head 18 receives the yarn 13, it rotates in thedirection of the arrow 22 to distribute the yarn on knitting needles (not shown).
  • the yarn is distributed on the needles, the needles recip rocate vertically, as shown by the arrow 23, to produce a tubular structure 24 which exits from the bottom of the knitting machine.
  • the tubular structure 24 exits from the bottom of the knitting machine, it is pulled by a pair of rollers 26-26 and directed into a chute 27 which reciprocates back and forth to deposit the tubular structure in a flexible bag or the like 29.
  • the flexible bag 29 is removably retained in a rigid container 31 and may be closed at the top, as shown in FIG. 2, for subsequent transport, storage or processig of the tubular knitted article 24.
  • the tubular knitted article 24 may As schematically illustrated by nozzle 30 in FIG. 2, the yarn 13 composing the knitted fabric 24 may be treated while in tubular form as it is stored.
  • This treatment may include such conventional processes as washing, dyeing, sizing or the application of finishing agents. It should be kept in mind that although the treatment is shown being applied to the tubular fabric 24 while the fabric 24 is in the container 31, the treatment may also be applied at any time while the yarn 13 is in the tubular form.
  • tubular structure 24 is deknitted by pulling the strand of yarn 13 therefrom through a yarn guide 32.
  • the tubular structure 24 of one package or bundle is knotted together, as shown by knot 33, with an adjacent tubular structure, so that as one package is deknitted, subsequent packages are available for immediate deknitting.
  • FIG. 4 there is shown a strand of yarn 13 which is composed of a plurality of filaments, 11a, 11b, 11c, 11d, and 11e
  • This plurality of filaments 11a-11e was converged by the guide 12 in FIG. 1 to form the strand of yarn 13 which was then knitted into the fabric 24 by the one-end or one-cut knitting machine, as seen in FIG. 1.
  • the strand of yarn 13 has a zero twist and is the same strand of yarn as that being pulled from the storage container 31 of FIG. 3.
  • the strand of yarn 13 is then drawn in a conventional manner between a pair of conventional drawing rollers 41 and 42 or the like.
  • the drawing roller 42 moves at a higher speed than the drawing roller 41 so that the yarn strand 13 which includes the filaments 11a-1le is drawn.
  • a conventional drawing rod 43 is disposed at an acute angle to the yarn 13 and receives the yarn l3 therearound.
  • the importance of having a zero twist in the yarn 13 occurs as the yarn 13 is looped around the drawing rod 43. If the yarn 13 were twisted, then it would be subject to uneven drawing as the twist in the yarn accumulates and releases above the rod 43 while the yarn passes over the rod 43.
  • the filaments lla-lle are parallel to one another and the yarn strand passes smoothly over the rod 43 as it is drawn. Since the filaments lla-lle are parallel, they can be separated continuously and wound simulta neously onto the separate bobbins 44a-44e in parallel.
  • EXAMPLE 1 A polyhexamethylene adipamide multi filament yarn is extruded under conventional extruding conditions to truded thereby avoiding any undue tension or uneven tension in the formation and storage of the yarn. Furthermore, the slow progress or linear speed of the jersey as it exits from the knitting machine, allows the freshly extruded filaments to be properly conditioned and regain humidity.
  • this slow jersey linear speed allows the container to be easily changed since the operator cuts the jersey and arranges the tubular article in the container so that the loose ends, i.e., tails, on both ends are easily accessible, and may be knotted with other similar storage packages for use as a supply to a textile process. This package is then removed and closed and enclosed in a non-returnable, light, throw-away package for storage and possible transportation thereby avoiding any possible transportation injury to the filament. In the creel of a drawing machine, this jersey is deknitted under low and constant tension, merely pulling out the undrawn yarn.
  • the yarn which is wound on a tube reacts as a spring when it is unwound, causing variations in the tension on the yarn. Furthermore, the filaments become intermingled and catch on the thread guides, thereby causing numerous defects and frayed, broken ends.
  • the same yarn when stored in accordance with the process of the present invention, permits uniform conditioning during storage and produces a uniform yarn upon drawing.
  • EXAMPLE 4 AND COMPARATIVE EXAMPLE 2 Two separate multi filament polyester yarns are extruded under similar conventional operating conditions in order to obtain yarns subsequent to drawing of 167/30 Dtex.
  • the control filaments are wound onto a standard bobbin, the other filaments are knitted in accordance with the procedure of Example 1.
  • Both the bobbin package and the jersey or knitted package are stored for 48 hours and then fed into a draw-texturing machine. In comparison, the drawn yarn which was stored as a knitted jersey runs considerably more smoothly and shows less nipped or frayed parts.
  • an elongation-strength dynamometric curve shows that the physical properties of the polyester yarn stored as a knitted jersey is considerably more regular than that of the similar yarn stored on a conventional bobbin. Furthermore, the dye affinity of the yarn stored as a jersey, is considerably more regular and uniform than the dye affinity of a similar yarn stored on a bobbin.
  • Example 5 Utilizing the procedure of Example I, subsequent to knitting and storage, the knitted tubular aritcle is dyed before deknitting. When this tubular article is deknitted in the creel of a drawing machine, the finally produced drawn yarn has excellent color characteristics and physical properties.
  • Example 6 The process of Example I is repeated with the exception that five filaments having a count of 12 Dtex each are knitted simultaneously to form a knitted tubular article. These five individual mono-filaments are then deknitted and drawn in a similar manner, but rewound for final storage individually, producing five separate storage bobbins of mono-filaments. The physical properties and dye affinity of each of these mono-filaments are quite excellent and uniform.
  • Example 7 The process of Example 1 is again repeated with the exception that a poly-e-caprolactam yarn is produced to obtain a drawn yarn having a count of /35 Dtex.
  • the knitted tubular article is washed and sized before deknitting in the drawing creel. These filaments produced have excellent physical properties, the same being quite uniform.
  • a process for manufacturing textile filaments from a polymer comprising the steps of:

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Artificial Filaments (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
US00309963A 1971-11-29 1972-11-28 Process for storing textile filaments in knitted form Expired - Lifetime US3849847A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7142787A FR2162727A5 (fr) 1971-11-29 1971-11-29

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US (1) US3849847A (fr)
JP (1) JPS4863042A (fr)
BE (1) BE790904A (fr)
BR (1) BR7208238D0 (fr)
CA (1) CA976775A (fr)
CH (1) CH556397A (fr)
DE (1) DE2258109B2 (fr)
FR (1) FR2162727A5 (fr)
GB (1) GB1406825A (fr)
IT (1) IT973753B (fr)
NL (1) NL7216103A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4185364A (en) * 1976-05-21 1980-01-29 Roselon Industries, Inc. Method of making multicolored yarn
US4193252A (en) * 1978-06-28 1980-03-18 Hitco Knit-deknit method of handling yarn to produce carbon or graphite yarn
US5202070A (en) * 1991-02-01 1993-04-13 Schneider Robert J Method for making composite products having an integral knit matrix
US5891284A (en) * 1995-09-13 1999-04-06 Owens Corning Fiberglas Technology, Inc. Manufacture of a undirectional composite fabric
US6370747B1 (en) * 2000-09-13 2002-04-16 Owens Corning Fiberglas Technology, Inc. Method and apparatus for the bulk collection of texturized strand
US20030226381A1 (en) * 2002-06-05 2003-12-11 Roberto Badiali Device for the continuous treatment of yarns with process fluids
US20110047768A1 (en) * 2009-08-28 2011-03-03 Huff Norman T Apparatus And Method For Making Low Tangle Texturized Roving

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2258661B (en) * 1991-09-27 1995-03-01 Guetermann & Co Sales package for sewing thread

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1524388A (en) * 1922-12-22 1925-01-27 Roy L Campbell Cutting attachment
US1767762A (en) * 1928-07-17 1930-06-24 R G Jennings Yarn Cleaning Mac Knitting-machine spot-dyeing apparatus
US1893197A (en) * 1930-05-31 1933-01-03 Samcoe Holding Corp Method of and apparatus for treating tubular textile fabrics
US2045755A (en) * 1932-03-17 1936-06-30 Samcoe Holding Corp Method of treating fabrics
US2826167A (en) * 1955-08-19 1958-03-11 Samcoe Holding Corp Fabric treating apparatus
US3248904A (en) * 1963-02-19 1966-05-03 Frishman Daniel Method and apparatus for back coating knitting pile fabric
US3333441A (en) * 1965-03-29 1967-08-01 Textile Machine Works Apparatus for making textured yarn
US3529447A (en) * 1967-05-24 1970-09-22 Vepa Ag Process and apparatus for the continuous treatment of textile materials
US3542309A (en) * 1969-01-30 1970-11-24 Logan Inc Jonathan Textile yarn storage and advancing apparatus and method
US3611701A (en) * 1968-11-29 1971-10-12 Bayer Ag Process for the production of dyed crimped yarns
US3720984A (en) * 1971-01-06 1973-03-20 Du Pont Multi-end knit-deknit process

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1524388A (en) * 1922-12-22 1925-01-27 Roy L Campbell Cutting attachment
US1767762A (en) * 1928-07-17 1930-06-24 R G Jennings Yarn Cleaning Mac Knitting-machine spot-dyeing apparatus
US1893197A (en) * 1930-05-31 1933-01-03 Samcoe Holding Corp Method of and apparatus for treating tubular textile fabrics
US2045755A (en) * 1932-03-17 1936-06-30 Samcoe Holding Corp Method of treating fabrics
US2826167A (en) * 1955-08-19 1958-03-11 Samcoe Holding Corp Fabric treating apparatus
US3248904A (en) * 1963-02-19 1966-05-03 Frishman Daniel Method and apparatus for back coating knitting pile fabric
US3333441A (en) * 1965-03-29 1967-08-01 Textile Machine Works Apparatus for making textured yarn
US3529447A (en) * 1967-05-24 1970-09-22 Vepa Ag Process and apparatus for the continuous treatment of textile materials
US3611701A (en) * 1968-11-29 1971-10-12 Bayer Ag Process for the production of dyed crimped yarns
US3542309A (en) * 1969-01-30 1970-11-24 Logan Inc Jonathan Textile yarn storage and advancing apparatus and method
US3720984A (en) * 1971-01-06 1973-03-20 Du Pont Multi-end knit-deknit process

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Some Conventional and Uncoventional Methods and Processes in Double Jersey, by F. Strasser, Textile Institute and Industry, Vol. 8, No. 12, December, 1970, pgs. 337 340. *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4185364A (en) * 1976-05-21 1980-01-29 Roselon Industries, Inc. Method of making multicolored yarn
US4193252A (en) * 1978-06-28 1980-03-18 Hitco Knit-deknit method of handling yarn to produce carbon or graphite yarn
US5202070A (en) * 1991-02-01 1993-04-13 Schneider Robert J Method for making composite products having an integral knit matrix
US5891284A (en) * 1995-09-13 1999-04-06 Owens Corning Fiberglas Technology, Inc. Manufacture of a undirectional composite fabric
US6370747B1 (en) * 2000-09-13 2002-04-16 Owens Corning Fiberglas Technology, Inc. Method and apparatus for the bulk collection of texturized strand
US7624867B2 (en) * 2000-09-13 2009-12-01 Ocv Intellectual Capital, Llc Method and apparatus for the bulk collection of texturized strand
US20030226381A1 (en) * 2002-06-05 2003-12-11 Roberto Badiali Device for the continuous treatment of yarns with process fluids
US7140207B2 (en) * 2002-06-05 2006-11-28 Savio Macchine Tessili S.P.A. Device for the continuous treatment of yarns with process fluids
US20110047768A1 (en) * 2009-08-28 2011-03-03 Huff Norman T Apparatus And Method For Making Low Tangle Texturized Roving
US8474115B2 (en) * 2009-08-28 2013-07-02 Ocv Intellectual Capital, Llc Apparatus and method for making low tangle texturized roving

Also Published As

Publication number Publication date
CA976775A (en) 1975-10-28
NL7216103A (fr) 1973-06-01
DE2258109B2 (de) 1976-06-10
CH556397A (fr) 1974-11-29
DE2258109A1 (de) 1973-06-14
FR2162727A5 (fr) 1973-07-20
IT973753B (it) 1974-06-10
GB1406825A (en) 1975-09-17
BE790904A (fr) 1973-03-01
JPS4863042A (fr) 1973-09-03
BR7208238D0 (pt) 1973-08-30

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