US3751778A - Process for the simultaneous texturing and dyeing or finishing of thermoplastic yarns - Google Patents

Process for the simultaneous texturing and dyeing or finishing of thermoplastic yarns Download PDF

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Publication number
US3751778A
US3751778A US00187407A US3751778DA US3751778A US 3751778 A US3751778 A US 3751778A US 00187407 A US00187407 A US 00187407A US 3751778D A US3751778D A US 3751778DA US 3751778 A US3751778 A US 3751778A
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fluid
pressure
compressed
yarns
zone
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US00187407A
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R Vidal
P Grosjean
R Guillermin
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Rhodiaceta SA
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Rhodiaceta SA
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Priority claimed from FR7037348A external-priority patent/FR2109421A5/fr
Priority claimed from FR7127557A external-priority patent/FR2147439A6/fr
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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
    • D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
    • D02G1/122—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes introducing the filaments in the stuffer box by means of a fluid jet
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
    • D06B3/04—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of yarns, threads or filaments
    • D06B3/045—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of yarns, threads or filaments in a tube or a groove

Definitions

  • ABSTRACT A process for the simultaneous texturizing, i.e. crimping, and dyeing or finishing of thermoplastic yarns comprising packing and compressing the yarns into a confined space through introduction of a flow of a compressed fluid heated to a temperature sufficient to set the yarns, allowing a portion of the compressed fluid to provide movement of the yarns axially in the confined space with the remainder of the fluid escaping laterally from the confined space into further annular space under a pressure lower than the pressure of the confined space, but higher than atmospheric pressure; and
  • thermoplastic yarn In the case of high speed texturizing processes it has been proposed to effect the texturizing by compressing and packing a thermoplastic yarn into a confined space by means of a hot compressed fluid, at least a portion of the fluid escaping laterally into the atmosphere with the remainder providing the axial movement of the packed yarn within the confined space.
  • the hot fluid is used as a crimp inducing and heat treating agent and is generally saturated steam.
  • thermoplastic yarns it is additionally known that in the foregoing texturizing processes one or more dyeing solutions can be inserted in the texturizing chamber so asto effect simultaneous texturizing and dyeing of the thermoplastic yarns. It is unfortunate, however, that, particularly at high speeds, the absorption of the dyes by the thermoplastic yarns is not always sufficiently fast. Accordingly the lack of absorption of the dyes by the thermoplastic yarns in the simultaneous texturizing and dyeing of the same is a distinct disadvantage of such simultaneous processes.
  • thermoplastic yarns comprising packing and compressing such thermoplastic yarns into a confined space by introduction of a flow of a compressed fluid, preferably steam, the compressed fluid being heated to a temperature sufficient to set the yarns; allowing a portion of the compressed fluid to provide movement of the yarns axially in the confined space, the remainder of the fluid escaping laterally from the confined space under a pressure lower than the pressure of the confined space but higher than atmospheric pressure; and simultaneously introducing at least one dyeing solution or finishing solution into the confined space over the compressed yarns, the improvement in accordance with the present invention being in that the compressed yarn is continuously passed through at least one expansion zone to effect expansion of the fluid and thereafter through at least one injection zone wherein a further fluid under pressure is injected.
  • a further fluid under pressure is injected.
  • thermoplastic yarns it is a principal object of the present invention to provide a novel process for the simultaneous texturizing and dyeing or finishing of thermoplastic yarns in a manner eliminating the various defects and disadvantages of prior proposals.
  • thermoplastic yarns are simultaneously dyed and crimped in a confined space and thereafter continuously passed through at least one expansion zone and thereafter through at least one zone in which a fluid is introduced under pressure.
  • thermoplastic yarn is meant to embrace any continuous length of substantially unidirectional thermoplastic textile material, regardless of its specific structure, which can be utilized for textile manufacture.
  • thermoplastic yarns which are simultaneously texturized and dyed or finished in accordance with the present invention may consist of one or a number of continuous filaments or of discontinuous (stable) fibers.
  • thermoplastic yarn as employed throughout the instant specification includes such yarns obtained by spinning or extrusion of polymers, copolymers, graft copolymers, mixtures thereof, or by spinning and simultaneous extrusion of at least two of these products arranged concentrically or sideby-side or dispersed in one another to produce homogeneous or hetergeneous yarns having properties depending upon the various components.
  • the process of the present invention is applicable both to the simultaneous texturizing, i.e. crimping, and dyeing of thermoplastic filament yarns as well as the simultaneous texturizing and finishing of such yarns.
  • the dyes which can be utilized in accordance with the present invention and applied to the packed yarn in the confined zone can be any of those conventionally utilized for dyeing thermoplastic yarns.
  • the dyes can be acid dyes, basic dyes, disperse dyes, etc., as well as conventional pigments.
  • the process of the present invention is not dependent upon any particular dyeing solution and any conventional dyeing solution or solutions can be advantageously utilized in accordance with the instant process.
  • finishing agents which can be utilized in accordance with the present invention include the well-known resist agents, antistatic agents, soil retardant agents, optical brightening agents, softeners, ultraviolet light absorbing agents fire proofing agents as well as a variety of other conventional finishes.
  • the process of the present invention is not dependent upon the utilization of any particular finishing agent and any of those conventionally applied to thermoplastic yarns can be applied simultaneously with the texturizing, i.e. crimping, in accordance with the instant process.
  • thermoplastic filament yarns to be simultaneously texturized, i.e. crimped, and dyed and/or finished are packed and compressed into a confined space through introduction of a flow of a compressed fluid, preferably steam, such compressed fluid being heated to a temperature sufficient to set the yarns.
  • a compressed fluid preferably steam
  • the yarn is texturized in this confined space by compression and packing under a first high pressure associated with the introduction of the compressed fluid, i.e. steam.
  • a portion of the compressed fluid provides movement of the yarn axially in the confined space with the remainder of the compressed fluid escaping laterally into an annular space around the confined space under a pressure which is lower than the texturizing pressure but higher than atmospheric pressure.
  • the thermoplastic yarn which is packed or piled up After passing through the confined space, the thermoplastic yarn which is packed or piled up then penetrates or passes into at least one zone of relaxation wherein the compressed fluid may be expanded to a lower pressure before the yarn passes into at least one zone wherein a further fluid is injected under pressure.
  • the yarn Preferably, the yarn then passes into at least one further expansion zone under a low pressure, preferably of the same order of magnitude of the earlier expansion zone.
  • the fluid which is injected in the injection zone is also preferably steam.
  • the pressure of the compressed fluid in at least one injection zone into and through which the packed yarn is passed is preferably high so as to exert sufficient mechanical pressure on the yarn.
  • the pressure in at least one injection zone is substantially equal to or slightly lower than the pressure of the texturizing fluid.
  • the pressure of the texturizing fluid is from about 4 to about 12 kg/cm, the pressure in at least one injection zone therefore being approximately 1.5 to 8 kg/cm
  • the pressure in the zones of relaxation and expansion of the compressed fluid are generally within the range of from about 1 to 3 kg/cm preferably close to atmospheric pressure.
  • the packed yarn may be passed into such zones of relaxation and injection under equal or differing pressures, the zones being arranged in various combinations. It should be clearly observable from the foregoing, however, that while the various zones through which the yarn passes in the process of the present invention are preferable maintained within the foregoing pressure ranges, the particular pressure for any specific zone can be varied within wide limits.
  • the process of the present invention allows for the texturizing and simultaneous dyeing and/or finishing of a thermoplastic yarn at high speeds.
  • the process of the present invention can be carried with high speeds compatible with the speeds utilized in the overall process within which the texturizing process is utilized.
  • the feeding means are generally between 600 and 1,500 meters per minute with the windup speeds generally within the range of 500 to 1,400 meters per minute.
  • the process of the present invention allows the simultaneous texturizing and dyeing and/or finishing of the thermoplastic yarn at speeds compatible with the above.
  • the feeding speeds of the yarn are generally within the range of l,000 to 5,500 meters per minute and the windup speeds between 800 and 5,000 meters per minute. Certainly, however, slightly greater or lesser speeds for both the feed and windup of the yarn can be employed in either a discontinuous or integrated process.
  • the simultaneous texturizing, i.e. crimping, and dyeing and/or finishing permits a considerable reduction in the amount of water maintained on the yarn, the water present being mainly due to the aqueous dyeing solution since generally 100 grams of water are provided in the aqueous dye solutions for 100 grams of yarn.
  • the elimination of water in accordance with the present invention provides an improvement from the viewpoint of dyeing, specifically in accordance with the present invention it is possible to obtain much better control, migration and diffusion of the dyes in the thermoplastic yarns.
  • the device or apparatus useful in carrying out the process of the present invention includes a suction nozzle having a passage for the thermoplastic yarn and an inlet pipe for the compressed fluid; a tubular chamber which communicates with the nozzle and is perforated with apertures so as to allow escape of some of the fluid from the tubular chamber; means for injection of one or more dyeing solutions into the tubular chamber; several closed enclosures surrounding the tubular chamber at least over a certain portion thereof associated with known systems for regulating the pressure, the closed enclosures serving to provide at least one injection zone and relaxation or expansion zone, the injection zone having associated therewith at least one means for injection of a fluid under pressure; and means for guiding and checking the delivery of the treated thermoplastic yarn.
  • the closed enclosures forming the injection zones and zones of relaxation and expansion of the fluid may be formed of several separate enclosures placed sideby-side or may be formed of a single enclosed space with water and air tight partitions.
  • the process of the present invention can be applicably carried out in accordance with either of these embodiments.
  • the thermoplastic yarn is first passed through at least one zone of expansion, thereafter into and through at least one injection zone wherein a fluid under pressure is injected over the thermoplastic yarn and finally through at least one further zone of expansion.
  • FIG. 1 is a schematic representation of a device carrying out the process of the present invention.
  • FIG. 2 is a further schematic representation of an alternative device carrying out the process of the present invention.
  • FIG. I illustrates a device carrying out the process of the present invention wherein a thermoplastic yarn l is inserted into a longitudinal duct 2 of a nozzle 3, a texturizing fluid, e.g. steam, being inserted through pipe 4.
  • the thermoplastic yarn l penetrates into tubular chamber 5, a portion of the texturizing fluid serving to advance the yarn axially, compressing and crimping the same in tubular chamber 5.
  • Tubular chamber 5 is perforated with apertures 6 through which a portion of the texturizing fluid escapes into a closed enclosure 7 which is maintained under a pressure lower than the pressure of the texturizing fluid but higher than atmospheric pressure by a known pressure regulating device 8.
  • thermoplastic yarn 11 forms a pile of packed yarn 9 which is subjected, in this case, to the action of two dyeing solutions coming from tank 10 divided into compartments 11 and 12, the dyeing solutions being introduced over the packed yarn 9 through pipes 13 and 14. While two dyeing solutions are illustrated in FIG. I, it is quite obvious that one or more dyeing solutions can be utilized or, a finishing solution can be employed alone or together with other finishing solutions or in combination with one or more dyeing solutions. Each of these embodiments is well within the scope of the present invention.
  • tubular chamber 5 thereafter passes through a first expansion or relaxation chamber 15 equipped with a regulating system or means 16 capable of maintaining the pressure in the chamber to allow expansion and escape of the texturizing fluid.
  • the texturizing fluid escapes from tubular chamber 5 into the first expansion or relaxation chamber 15 through apertures 17. While only one expansion-or relaxation chamber 15 is shown in FIG. I, it is quite possible as indicated previously that the tubular chamber may pass through one or more expansion or relaxation chambers or zones.
  • tubular chamber 5 After passing through the expansion or relaxation chamber 15, tubular chamber 5 then passes into a zone or chamber 18 equipped with a pressure regulating device 19 and a fluid injection means, not shown, the fluid being injected into chamber 18 through pipe or tube 20.
  • the compressed fluid preferably the same as the texturizing fluid, i.e. steam, is introduced into injection chamber 10 through pipe or tube 20 and passes over packed yarn 9 by passing through apertures 21.
  • the texturizing fluid i.e. steam
  • tubular chamber After passing through injection zone or chamber 18, tubular chamber passes through a further expansion or relaxation chamber 22, generally of the same configuration and type as expansion or relaxation chamber 15.
  • Such further relaxation chamber 22 is also equipped with a known pressure regulating device 23 and the fluid escapes into the relaxation or expansion chamber 22 through apertures 24.
  • the packed yarn which progresses through tubular chamber 5 by the action of the texturizing fluid is guided when it leaves relaxation or expansion chamber 22 by means of a driven roller 26 and non-driven roller 27, the means for driving the roller not being shown.
  • the process of the present invention can be carried out in a discontinuous manner or as a portion of an integrated process. Other necessary elements of the integrated process or discontinuous process including delivery and windup means for the thermoplastic yarn are conventional and not shown in the figures.
  • FIG. 2 illustrates a further device or apparatus carrying out the process of the present invention, the apparatus of FIG. 2 differing from that of FIG. I only in that the means for guiding and controlling the packed yarn 9 comprises a tube 28 with apertures 29 open to the atmosphere. Again, the conventional delivery and windup means, etc., are not shown.
  • tubular chamber 5 illustrates passage of tubular chamber 5 through a single expansion or relaxation zone or chamber, an injection zone or chamber and thereafter through a further expansion or relaxation zone or chamber, it is quite obvious that one or more of each of these zones can be utilized in carrying out the process of the present invention.
  • the packed yarn is dyed by bringing incontact with it an aqueous solution of brilliant polar blue R A W L (CI 61 585), with a concentration of 40 g/l, and a rate of flow of cm lmn, and an aqueous solution of milling yellow 2 R (CI 25 I35 with a concentration of 40 g/l, and a rate of flow of 70 cm 'lmn.
  • the amount of water brought in by these aqueous solutions is 73 percent with respect to the weight of the yarn.
  • the mechanical properties of the yarn are as follows:
  • the elasticity is measured by the following test.
  • a skein of 10 meters of yarn to be tested is treated for 5 minutes at C. in saturated steam in a steam oven. Then a load of 0.045 gldtex (0.05 g/den) of the yarn prior to texturizing is applied on a length of 50 cm of yarn taken from said skein. A length L, of yarn is then measured. The load is then replaced by another smaller load of 0.0009 gldtex (0.001 g/den) of the yarn prior to texturizing. This load is maintained for I hour, then the length L, of the yarn is measured.
  • Example 2 With the device used in Example I and illustrated in FIG. I, a Nylon 66, 2,300 dtex/ I 20 filament yarn is texturized and simultaneously a dyeing inhibitor or a resist agent is applied to the yarn.
  • the operating conditions are as follows:
  • the resisting agent used is an aqueous solution at 20 g/liter of a product known commercially under the name of Sandospace R" which is a colorless organic substance containing a sulfonic group and a reactive group, and which is capable of modifying the appearance of polyamide fibers for acid and cationic dyes.
  • This solution is injected through three nozzles with a flow of 130 cm per nozzle, for 265 g of yarn per minute.
  • the treated yarn is knitted and the knit obtained is dyed at 98C. with pH 5, buffered with 2 percent of Sandogene NH (SANDOZ) and 0.8 percent of a blue acid dye CI 61,125.
  • SANDOZ Sandogene NH
  • the shade obtained is a very pale blue approaching total resist.
  • Spotted effects i.e. with resists in places, can be obtained by using only one of the three nozzles: in this case, 130 cm of Sandospace R is fed once for 265 g of yarn per minute.
  • a knitted article made from the same yarn, without any inhibitor, and dyed under the same conditions, has a deep blue shade.
  • EXAMPLE 3 The texturizing is effected under the same conditions, and with the same yarn, as in Example 2, an antistatic agent being injected.
  • the product used is an aqueous solution at 38 g/liter of a product known in commerce under the trademark Tetronics 908" (UGlNE-KUHLMAN), which is a polyoxyalkylene-tetrol with tertiary-amino functions which has then been sulfonated to permit its fixation on' the polyamide.
  • Tetronics 908 a polyoxyalkylene-tetrol with tertiary-amino functions which has then been sulfonated to permit its fixation on' the polyamide.
  • the antistatic property is then measured by means of the Rotschild electrometer.
  • thermoplastic filament yarns in a process for the simultaneous crimping and dyeing thermoplastic filament yarns at high speeds comprising packing and compressing said yarns into a confined space by introduction of a flow of a first compressed fluid, said first compressed fluid being heated to atemperature sufficient to set said yarns; allowing a portion of said first compressed fluid to provide movement of said yarns axially in said'confined space, the
  • thermoplastic filament yarns in a process for the simultaneous crimping and finishing thermoplastic filament yarns at high speeds comprising packing'and compressing said yarns into a confined space by introduction of a flow of a first compressed fluid, said first compressed fluid being heated to a temperature sufficient to set said yarns; allowing a portion of said first compressed fluid to provide movement of said yarns axially in said confined space, the remainder of said fluid escaping laterally from said confined space into a further space under a pressure lower than the pressure of said confined space, but higher than atmospheric pressure; and simultaneously introducing at least one finishing solution into said confined space over the compressed yarns, the improvement wherein the compressed yarn passes through at least one expansion zone and thereafter through at least one zone in which a second fluid is introduced under pressure.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Coloring (AREA)
US00187407A 1970-10-14 1971-10-07 Process for the simultaneous texturing and dyeing or finishing of thermoplastic yarns Expired - Lifetime US3751778A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7037348A FR2109421A5 (en) 1970-10-14 1970-10-14 Dyeing and crimping yarn simultaneously - by compressing into a plug and dyeing the plug
FR7127557A FR2147439A6 (en) 1971-07-26 1971-07-26 Dyeing and crimping yarn simultaneously - by compressing into a plug and dyeing the plug

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JP (1) JPS532973B1 (xx)
BE (1) BE773902A (xx)
CA (1) CA949305A (xx)
CH (2) CH1498271A4 (xx)
DE (1) DE2151248A1 (xx)
ES (1) ES395981A1 (xx)
GB (1) GB1312579A (xx)
LU (1) LU64061A1 (xx)
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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3901015A (en) * 1973-02-08 1975-08-26 Rhone Poulenc Textile Method for cutting continuous yarns
US3938306A (en) * 1972-08-26 1976-02-17 Karl Bous Spinning and winding of yarns
US4018557A (en) * 1972-12-06 1977-04-19 Richard Donovan Glover Method for transfer color printing
US4315355A (en) * 1977-06-27 1982-02-16 Techniprises Limited Strand crimping treatment
US4316312A (en) * 1980-09-19 1982-02-23 Allied Corporation Apparatus for intermittent application of fluid to yarn at a texturing device
US4452605A (en) * 1981-11-07 1984-06-05 J & P Coats, Limited Continuous yarn dyeing: uniformly coating running yarn with dye liquid, drying and fixing with heat
US4459704A (en) * 1981-08-03 1984-07-17 Apparel Form Company Method of forming cloth into three-dimensional shapes and the articles produced by that method
US4555814A (en) * 1982-07-06 1985-12-03 Apparel Form Company Method of forming cloth into three-dimensional shapes and the articles produced by that method
US4919869A (en) * 1987-05-29 1990-04-24 E. I. Du Pont De Nemours And Company Apparatus for and process of treating shrinkable fibers
US5088168A (en) * 1989-11-11 1992-02-18 Barmag Ag Yarn texturing apparatus with heat sensor in stuffer box to control heat flow
US5419023A (en) * 1992-07-30 1995-05-30 Hoechst Celanese Corporation Apparatus for crimping tow and application of finish to the tow
US5485662A (en) * 1994-04-29 1996-01-23 Hercules Incorporated Apparatus and method for crimping fiber for nonwoven applications
US5802649A (en) * 1996-02-12 1998-09-08 Fypro Method and apparatus for dyeing a traveling textile strand
US5881411A (en) * 1996-12-23 1999-03-16 Fypro Thread Company, Inc. Twisted, dyed and bonded filaments
US6141843A (en) * 1998-08-27 2000-11-07 Barmag Ag Apparatus and method for stuffer box crimping a synthetic yarn
US20040244441A1 (en) * 2003-06-06 2004-12-09 Henry Shaw Method and device for applying several substances to a yarn
US20050246878A1 (en) * 2004-05-06 2005-11-10 Saurer Gmbh & Co. Kg Method and apparatus for stuffer box crimping a multifilament yarn
US20060005365A1 (en) * 2004-07-09 2006-01-12 Saurer Gmbh & Co. Kg Method and apparatus for stuffer box crimping a multifilament yarn
WO2010141856A2 (en) 2009-06-05 2010-12-09 Invista Technologies S.A.R.L. Systems and methods for intermittently colored yarn

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4144023A (en) * 1977-10-11 1979-03-13 E. I. Du Pont De Nemours And Company Dyeing of high strength, high modules aromatic polyamide fibers

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1452774A (fr) * 1965-07-30 1966-04-15 Nouveau procédé de vaporisage de fibres textiles, nouveaux produits en résultant et nouveaux dispositifs pour mettre en oeuvre ce procédé
US3644969A (en) * 1966-06-28 1972-02-29 Rhodiaceta Process for producing yarns showing novel varying color effects

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1452774A (fr) * 1965-07-30 1966-04-15 Nouveau procédé de vaporisage de fibres textiles, nouveaux produits en résultant et nouveaux dispositifs pour mettre en oeuvre ce procédé
US3644969A (en) * 1966-06-28 1972-02-29 Rhodiaceta Process for producing yarns showing novel varying color effects

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938306A (en) * 1972-08-26 1976-02-17 Karl Bous Spinning and winding of yarns
US4018557A (en) * 1972-12-06 1977-04-19 Richard Donovan Glover Method for transfer color printing
US3901015A (en) * 1973-02-08 1975-08-26 Rhone Poulenc Textile Method for cutting continuous yarns
US4315355A (en) * 1977-06-27 1982-02-16 Techniprises Limited Strand crimping treatment
US4316312A (en) * 1980-09-19 1982-02-23 Allied Corporation Apparatus for intermittent application of fluid to yarn at a texturing device
US4459704A (en) * 1981-08-03 1984-07-17 Apparel Form Company Method of forming cloth into three-dimensional shapes and the articles produced by that method
US4452605A (en) * 1981-11-07 1984-06-05 J & P Coats, Limited Continuous yarn dyeing: uniformly coating running yarn with dye liquid, drying and fixing with heat
US4555814A (en) * 1982-07-06 1985-12-03 Apparel Form Company Method of forming cloth into three-dimensional shapes and the articles produced by that method
US4919869A (en) * 1987-05-29 1990-04-24 E. I. Du Pont De Nemours And Company Apparatus for and process of treating shrinkable fibers
US5088168A (en) * 1989-11-11 1992-02-18 Barmag Ag Yarn texturing apparatus with heat sensor in stuffer box to control heat flow
US5419023A (en) * 1992-07-30 1995-05-30 Hoechst Celanese Corporation Apparatus for crimping tow and application of finish to the tow
US5485662A (en) * 1994-04-29 1996-01-23 Hercules Incorporated Apparatus and method for crimping fiber for nonwoven applications
US5802649A (en) * 1996-02-12 1998-09-08 Fypro Method and apparatus for dyeing a traveling textile strand
US5868010A (en) * 1996-02-12 1999-02-09 Fypro Thread Company, Inc. Method for dyeing a traveling textile strand
US5881411A (en) * 1996-12-23 1999-03-16 Fypro Thread Company, Inc. Twisted, dyed and bonded filaments
US6141843A (en) * 1998-08-27 2000-11-07 Barmag Ag Apparatus and method for stuffer box crimping a synthetic yarn
US20040244441A1 (en) * 2003-06-06 2004-12-09 Henry Shaw Method and device for applying several substances to a yarn
US20050246878A1 (en) * 2004-05-06 2005-11-10 Saurer Gmbh & Co. Kg Method and apparatus for stuffer box crimping a multifilament yarn
US7155787B2 (en) * 2004-05-06 2007-01-02 Saurer Gmbh & Co. Kg Method and apparatus for stuffer box crimping a multifilament yarn
US20060005365A1 (en) * 2004-07-09 2006-01-12 Saurer Gmbh & Co. Kg Method and apparatus for stuffer box crimping a multifilament yarn
US7168141B2 (en) * 2004-07-09 2007-01-30 Saurer Gmbh & Co. Kg Method and apparatus for stuffer box crimping a multifilament yarn
WO2010141856A2 (en) 2009-06-05 2010-12-09 Invista Technologies S.A.R.L. Systems and methods for intermittently colored yarn
US8850786B2 (en) 2009-06-05 2014-10-07 INVISTA North America S.à.r.l. Systems and methods for intermittently colored yarn
EP2438225A4 (en) * 2009-06-05 2016-03-09 INVISTA Technologies S à r l SYSTEM AND METHOD FOR INTERMITTENTLY DYED YARN

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Publication number Publication date
NL166995B (nl) 1981-05-15
CH571592B5 (xx) 1976-01-15
NL166995C (nl) 1981-10-15
ES395981A1 (es) 1973-12-16
BE773902A (fr) 1972-01-31
GB1312579A (en) 1973-04-04
CH1498271A4 (xx) 1975-06-13
DE2151248A1 (de) 1972-04-20
JPS532973B1 (xx) 1978-02-02
CA949305A (en) 1974-06-18
LU64061A1 (xx) 1972-04-21
NL7113189A (xx) 1972-04-18

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