US3576284A - Apparatus for the treatment of bundle of filaments - Google Patents

Apparatus for the treatment of bundle of filaments Download PDF

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Publication number
US3576284A
US3576284A US826997A US3576284DA US3576284A US 3576284 A US3576284 A US 3576284A US 826997 A US826997 A US 826997A US 3576284D A US3576284D A US 3576284DA US 3576284 A US3576284 A US 3576284A
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United States
Prior art keywords
distribution chamber
area
tube
outlet duct
smooth surface
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Expired - Lifetime
Application number
US826997A
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English (en)
Inventor
Jacques Fellous
Pierre Goullioud
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Rhodiaceta SA
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Rhodiaceta SA
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Publication date
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Publication of US3576284A publication Critical patent/US3576284A/en
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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/009—Condensation or reaction polymers
    • D04H3/011—Polyesters
    • 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
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D01D10/04—Supporting filaments or the like during their treatment
    • D01D10/0436—Supporting filaments or the like during their treatment while in continuous movement
    • D01D10/0481—Supporting filaments or the like during their treatment while in continuous movement the filaments passing through a tube
    • 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
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/098—Melt spinning methods with simultaneous stretching
    • D01D5/0985—Melt spinning methods with simultaneous stretching by means of a flowing gas (e.g. melt-blowing)
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D04H3/03—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments at random
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D04H3/03—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments at random
    • D04H3/037—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments at random reorientation by liquid

Definitions

  • a distribution chamber is formed with at least one conduit for feeding fluid under pressure thereto, an outlet duct connected to said distribution chamber by a smooth, inwardly convex surface, formed as a curve of revolution, coaxial with the outlet duct, and a convergent inlet member to the chamber connected to a tube, coaxial with the outlet duct, and extending into the distribution chamber, the free end of the tube being located within and spaced from said smooth surface at the junction thereof with said outlet duct.
  • the present invention relates to apparatus for the treatment, by means of a pressure fluid, of a bundle of continuous, moving chemical filaments.
  • An advantageous apparatus for the performance of this technique comprises a generally frustoconical inlet orifice opening into a chamber provided with one or more fluid feed conduits and prolonged towards its downstream portion by a cylindrical tube.
  • the widened or flared inlet orifice is connected with the chamber in such manner as to form an annular space which is inclined relatively to the direction of travel of the yarn or thread, in such manner as to aspirate and entrain the bundle of filaments.
  • the fluid is throttled considerably as it enters the passage conduit of the bundle, in such manner that it necessitates a considerable quantity of air (thus involving high working costs) and it does not permit the achievement of velocity levels which are adequate to enable the successful achievement, by drawing, of molecular orientation of the polymer constituting the filaments of the bundle.
  • apparatus for the treatment of a bundle of filaments with a jet of fluid under pressure comprising a distribution chamber having at least one conduit for feeding fluid under pressure thereto, an outlet duct connected to said distribution chamber by a smooth inwardly convex surface, formed as a curve of revolution, coaxial with the outlet duct, and a convergent inlet member to the chamber connected to a tube, coaxial with the outlet duct, and extending into the distribution chamber, the free end of the tube being located within and spaced from said smooth surface at the junction thereof with said outlet duct.
  • the outlet duct is provided with a coaxia] divergent extension at the downstream end thereof.
  • This arrangement considerably facilitates the guiding of the bundle of filaments in the apparatus and by ensuring expansion of the fluid, improves the speeding-up of the bundle velocity.
  • the divergent extension is' provided with a coaxial outlet tube extension at the downstream end thereof, the diameter of the cylindrical extension corresponds to that of the downstream end of the divergent extension, whereas its length may vary within wide limits.
  • the tube and the duct and the outlet tube are cylindrical and the divergent portion has the shape of a straight (or right) come frustum.
  • the outlet tube may exhibit cylindrical section, flattening gradually in such manner as to distribute the filaments in line, thus assisting the uniform and homogeneous formation of the web.
  • the free end of said tube and said smooth surface adjacent thereto define an annular space having a first area, and said smooth surface encloses a second area at the location of said free end, and wherein said first area is between 0.1 and 0.6 of said second area, preferably between 0.25 and 0.40 of said second area.
  • the apparatus according to the invention may be manufactured from any suitable materials, such as brass, stainless steel, ceramic material or plastics material, and by any suitable techniques, such as machining or moulding.
  • the pressure of the fluid utilized may cover an extremely wide range, as a function of both the results which is desired to achieve and the respective dimensions of the essential parts constituting the apparatus.
  • the fluid is a gas, which may be hot or cold, notably an inert gas, such as nitrogen or steam.
  • compressed air is used. ln practice, compressed air at ambient temperature is used under a pressure ranging between l and 6 bars, preferably 2.5 to 4 bars, measured in the distribution chamber.
  • the apparatus according to the invention may advantageously be utilized in the process previously described for the preparation of nonwoven webs or laps constituted by continuous filaments, wherein it serves jointly for the advancing and drawing of the bundle of filaments.
  • a funnelshaped inlet member 1 provided with a coaxial downwardly extending tube 2.
  • the tube 2 extends into a distribution chamber 3 provided with a plurality of fluid inlets 4.
  • an outlet duct 5 Coaxial with the tube 2 and the funnel l is an outlet duct 5 having, at its lower downstream end, a divergent extension 6 of frustoconical form. Downstream of this extension 6 is a cylindrical outlet tube extension 7, the diameter of which corresponds to the wider diameter of the divergent extension 6.
  • the distribution chamber 3 is provided with a smooth surface 8 which is inwardly convex, being formed as a curve of revolution about the common axis 9 of the inlet member 1, the tube 2, the outlet duct 5, and the extensions 6 and 7.
  • the lower end 10 of the tube 2 is adjacent the junction between the smooth surface 8 and the inner surface of the outlet duct 5 and is spaced therefrom.
  • an annular space is formed between the tube and the smooth surface, through which fluid from the chamber 3 passes into the outlet duct 5, and acts upon the bundle of filament passing in through the inlet member 1 and the tube 2 and so out through the duct 5 and extensions 6 and 7.
  • EXAMPLE Using the apparatus described above, through a spinneret pierced with 70 cylindrical apertures, 0.6 mm. in diameter, was extruded molten ethylene polyterephthalate (intrinsic viscosity after drawing, 0.68 determined at 25C. on a 0.5 percent solution in orthochlorophenol). The material extrusion rate was regulated at 5.2 grams per minute per aperture.
  • the bundle of filaments was assembled in a device according to the inventionthe features thereof are given hereinbelow-arranged at a distance of 150 cm. from the spinneret, in such manner that the filaments were cooled in ambient air as they travelled along the spinneret/apparatus path of travel.
  • the bundle of filaments having orientated structure was guided on to an endless moving belt on which was formed a nonwoven web or lap constituted by continuous filaments disposed at random and in nonparallel fashion, the web or lap weighing approximately 250 g/m
  • the elementary filaments had a unit count of 8.8 dtex (8 denier); they were not entangled but are clearly separated from each other.
  • the apparatus used had the following features:
  • Material c Stainless steel Overall length 310 mm. Height of the inlet member (1)., 150 mm. Maximum diameter of the inlet member (1) 100 mm. Length of the cylindrical tube (2) 90 mm. Internal diameter of the cylindrical tube (2) 9 mm. External diameter of the cylindrical tube (2) 11 mm. Diameter of the cylindrical distribution chamber (3). 200 mm. Height of the distribution chamber (3)- 50 111111. Number of fluid-supplying conduits (4) 2.
  • an apparatus for the drawing and advance of a bundle of continuous chemical filament by means of a fluid under pressure comprising a distribution chamber, at least one conduit for feeding fluid under pressure to said distribution chamber, an outlet duct to said distribution chamber, a smooth inwardly convex surface joining said duct to said distribution chamber and formed as a curve of revolution, a common axis to said outlet duct and smooth surface and a convergent inlet member to said distribution chamber, the improvement consisting in a tube coaxial with said common axis, connected to said inlet member and extending into said distribution chamber and a free downstream end to said tube located within and spaced from said smooth surface at the level of the junction point thereof with said outlet duct.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Nonwoven Fabrics (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US826997A 1968-05-22 1969-05-22 Apparatus for the treatment of bundle of filaments Expired - Lifetime US3576284A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR69050048 1968-05-22

Publications (1)

Publication Number Publication Date
US3576284A true US3576284A (en) 1971-04-27

Family

ID=9695386

Family Applications (1)

Application Number Title Priority Date Filing Date
US826997A Expired - Lifetime US3576284A (en) 1968-05-22 1969-05-22 Apparatus for the treatment of bundle of filaments

Country Status (11)

Country Link
US (1) US3576284A (xx)
JP (1) JPS4826830B1 (xx)
BE (1) BE733420A (xx)
BR (1) BR6908983D0 (xx)
CH (1) CH503806A (xx)
DE (1) DE1926112A1 (xx)
DK (1) DK147439C (xx)
FR (1) FR1582147A (xx)
GB (1) GB1221912A (xx)
LU (1) LU58690A1 (xx)
NL (1) NL161821C (xx)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3863822A (en) * 1972-05-29 1975-02-04 Rueti Ag Maschf Nozzle device for producing a fluid jet
US4074727A (en) * 1975-06-09 1978-02-21 Joseph Rene Cornellier Liquid supply system and nozzle for jet weaving looms
US4322027A (en) * 1980-10-02 1982-03-30 Crown Zellerbach Corporation Filament draw nozzle
US4346504A (en) * 1980-07-11 1982-08-31 Hoechst Fibers Industries Yarn forwarding and drawing apparatus
US5276946A (en) * 1989-10-05 1994-01-11 Hergeth Hollingsworth Gmbh Multiple bale opener
US5315738A (en) * 1989-10-05 1994-05-31 Hergeth Hollingsworth Gmbh Multiple bale opener having inclined, adjustable tracks
US5326009A (en) * 1988-02-15 1994-07-05 Mitsui Petrochemical Industries, Ltd. Air nozzle for use in production of nonwoven fabric
US5746072A (en) * 1995-09-28 1998-05-05 H.Krantz Textiltechnik Gmbh System for conveying and treating an endless textile loop
US6660218B2 (en) 2001-07-31 2003-12-09 E.I. Du Pont De Nemours And Company Filament draw jet apparatus and process
EP3400882A1 (en) * 2010-05-04 2018-11-14 Ethicon LLC Laser cutting system and methods for creating self-retaining sutures

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2299438A1 (fr) * 1974-06-10 1976-08-27 Rhone Poulenc Textile Procede et dispositif pour la fabrication de nappes non tissees en fils continus thermoplastiques
FR2546536B1 (fr) * 1983-05-25 1985-08-16 Rhone Poulenc Fibres Procede pour le traitement de nappes non tissees et produit obtenu
JP2575777B2 (ja) * 1988-02-15 1997-01-29 三井石油化学工業株式会社 不織布製造用エアーノズル
DE4327693A1 (de) * 1993-08-18 1995-02-23 Hoechst Ag Verfahren zum Überwachen des Gasdurchsatzes durch Injektordüsen, Injektordüse zur Durchführung dieses Verfahrens, sowie deren Verwendung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR942822A (fr) * 1946-04-09 1949-02-18 Du Pont Procédé et installation de traitement de filaments artificiels
US3452910A (en) * 1967-07-17 1969-07-01 Leesona Corp Yarn handling apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR942822A (fr) * 1946-04-09 1949-02-18 Du Pont Procédé et installation de traitement de filaments artificiels
US3452910A (en) * 1967-07-17 1969-07-01 Leesona Corp Yarn handling apparatus

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3863822A (en) * 1972-05-29 1975-02-04 Rueti Ag Maschf Nozzle device for producing a fluid jet
US4074727A (en) * 1975-06-09 1978-02-21 Joseph Rene Cornellier Liquid supply system and nozzle for jet weaving looms
US4346504A (en) * 1980-07-11 1982-08-31 Hoechst Fibers Industries Yarn forwarding and drawing apparatus
US4322027A (en) * 1980-10-02 1982-03-30 Crown Zellerbach Corporation Filament draw nozzle
WO1982001180A1 (en) * 1980-10-02 1982-04-15 Zellerbach Corp Crown Filament draw nozzle
US5326009A (en) * 1988-02-15 1994-07-05 Mitsui Petrochemical Industries, Ltd. Air nozzle for use in production of nonwoven fabric
US5315738A (en) * 1989-10-05 1994-05-31 Hergeth Hollingsworth Gmbh Multiple bale opener having inclined, adjustable tracks
US5276946A (en) * 1989-10-05 1994-01-11 Hergeth Hollingsworth Gmbh Multiple bale opener
US5746072A (en) * 1995-09-28 1998-05-05 H.Krantz Textiltechnik Gmbh System for conveying and treating an endless textile loop
US6660218B2 (en) 2001-07-31 2003-12-09 E.I. Du Pont De Nemours And Company Filament draw jet apparatus and process
EP3400882A1 (en) * 2010-05-04 2018-11-14 Ethicon LLC Laser cutting system and methods for creating self-retaining sutures
US10420546B2 (en) 2010-05-04 2019-09-24 Ethicon, Inc. Self-retaining systems having laser-cut retainers
US10952721B2 (en) 2010-05-04 2021-03-23 Ethicon, Inc. Laser cutting system and methods for creating self-retaining sutures
US11234692B2 (en) 2010-05-04 2022-02-01 Cilag Gmbh International Self-retaining system having laser-cut retainers

Also Published As

Publication number Publication date
NL161821C (nl) 1980-03-17
FR1582147A (xx) 1969-09-26
NL161821B (nl) 1979-10-15
LU58690A1 (xx) 1970-01-14
NL6907453A (xx) 1969-11-25
DK147439C (da) 1985-02-18
BE733420A (xx) 1969-11-21
JPS4826830B1 (xx) 1973-08-16
CH503806A (fr) 1971-02-28
DE1926112A1 (de) 1969-11-27
DK147439B (da) 1984-08-06
GB1221912A (en) 1971-02-10
BR6908983D0 (pt) 1973-01-09

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