EP1420089A1 - Dispositif pour la fabrication de fibres en matière thermoplastique - Google Patents

Dispositif pour la fabrication de fibres en matière thermoplastique Download PDF

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Publication number
EP1420089A1
EP1420089A1 EP02025772A EP02025772A EP1420089A1 EP 1420089 A1 EP1420089 A1 EP 1420089A1 EP 02025772 A EP02025772 A EP 02025772A EP 02025772 A EP02025772 A EP 02025772A EP 1420089 A1 EP1420089 A1 EP 1420089A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
channels
molded body
exit surface
bores
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02025772A
Other languages
German (de)
English (en)
Other versions
EP1420089B1 (fr
Inventor
Ulrich Dzialas
Detlef Frey
Hans-Georg Geus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Reifenhaeuser GmbH and Co KG Maschinenenfabrik
Original Assignee
Reifenhaeuser GmbH and Co KG Maschinenenfabrik
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Reifenhaeuser GmbH and Co KG Maschinenenfabrik filed Critical Reifenhaeuser GmbH and Co KG Maschinenenfabrik
Priority to EP02025772A priority Critical patent/EP1420089B1/fr
Priority to DE50205368T priority patent/DE50205368D1/de
Priority to CNB031082122A priority patent/CN100336947C/zh
Priority to US10/712,796 priority patent/US7070403B2/en
Publication of EP1420089A1 publication Critical patent/EP1420089A1/fr
Application granted granted Critical
Publication of EP1420089B1 publication Critical patent/EP1420089B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/02—Spinnerettes
    • D01D4/025—Melt-blowing or solution-blowing dies
    • 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)

Definitions

  • the invention relates to a device for generating Thermoplastic fibers, at least a melt channel for the supply of molten Plastic is provided and there is a nozzle is at least one nozzle channel at its outlet end with a nozzle opening for the outlet of the molten Has plastic.
  • the invention is based on the technical problem Specify device of the type mentioned, the one has high density of nozzle channels or a high hole density and which are in terms of varying the way Size and arrangement of the nozzle channels through simplicity and Exceptional flexibility.
  • the invention teaches a device for producing fibers from thermoplastic material, wherein at least one melt channel is provided for the supply of molten plastic, wherein there is a nozzle which has at least one row of nozzle channels with nozzle openings for the outlet of the molten plastic at its outlet end, wherein holes are made in the outlet end of the nozzle, into which holes at least one molded body is fitted in a form-fitting manner and wherein at least one nozzle channel is introduced in the contact area between the molded body and the bore.
  • the invention basically also includes a device with a nozzle which has only a single nozzle opening for the outlet of the molten plastic.
  • the invention Device consists of a blow head, the melt channel and has the nozzle.
  • fibers are especially filaments, d. H. Fibers with large theoretically infinite length. Basically, with the Device but also shorter fibers can be produced.
  • the fibers produced according to the invention can be used primarily for Manufacture of nonwovens or nonwoven sheet products serve.
  • the invention comprises Device for supplying blown air, which are arranged with the proviso that the blowing air on the plastic strands emerging from the nozzle channels hits at an acute angle.
  • Flow channels for the blown air are provided, which are preferably over the entire width of the device or Extend nozzle.
  • Blown air jets are therefore preferred generated that exits from the nozzle channels Strike plastic strands at an acute angle.
  • These blown air surface jets can also come from a series of closely spaced nozzle bores emerge as individual jets, which then become the blown air jet complete.
  • the exit end the nozzle or the nozzle tip is flattened and the nozzle or nozzle tip has a corresponding one Exit surface in which the holes for the moldings are arranged or open.
  • Flattened means here that the nozzle is not pointed downwards runs like a conventional melt-blown die, but that the tip is cut off as it were.
  • the exit surface formed on the nozzle or nozzle tip perpendicular or essentially perpendicular to the nozzle channels or to the exit direction of the Arranged plastic strands emerging nozzle channels. It is within the scope of the invention that the nozzle channels and Bores for the molded body on the exit surface flattened outlet end of the nozzle with the melt channel connect.
  • blow air ducts for the supply of blow air in the Outlet surface.
  • the flattening of the nozzle or Nozzle tip can be aerodynamically through the aforementioned Guiding edges and, if applicable, those opening into the exit surface Blown air channels neutralized or compensated become.
  • the at least one nozzle channel in the outer surface of the Molded body introduced.
  • the nozzle channel is therefore located in the outer jacket of the molded body and is as it were in the Engraved outer jacket. It is within the scope of the invention that multiple nozzle channels in the outer surface of a molded body are introduced and expediently via the Distributed circumference or part of the circumference of this molded body are arranged.
  • the nozzle channels are expedient than introduced into the outer surface of the molded body Melting grooves executed, preferably in cross section Are U-shaped or semicircular.
  • tapers a molded body in terms of its length. Length means here the expansion of the molded body in the direction of the longitudinal axis the holes or the nozzle channels. Preferably takes place a taper of the molded body to the outlet end of the nozzle or to the exit surface instead.
  • the cross section of the Shaped body is therefore preferred to the outlet end or the outlet openings of the nozzle channels smaller or narrower.
  • the molding can pass through the pending Melt pressure securely in position in the hole assigned to it be fixed.
  • a shaped body is circular in cross section.
  • a very preferred embodiment of the Invention is of particular importance is a Shaped conical shape.
  • the molded body then expediently has a conical taper to the exit end or to the exit surface.
  • a molded body can also be used as a cuboid Prism or the like can be formed.
  • At least one Row of holes (for the molded body) at the outlet end extends across the width of the device or nozzle. It is expedient to use a linear or straight line. According to one embodiment of the invention extend two rows of staggered Bores across the width of the nozzle. Basically, in Framework of the invention also only a single hole for a single molded body may be provided.
  • the base body of the device or the nozzle can on the one hand consist of a metal, preferably steel. It but is also within the scope of the invention that the nozzle entirely or partially made of a thermally insulating material, for example consists of ceramic material.
  • the moldings suitably consist of the material from which the nozzle is there.
  • the invention is based on the finding that the Device according to the invention a plurality of nozzle channels can be realized in a relatively small space can. According to the invention, a surprisingly high Hole density of up to 100 nozzle channels per cm or higher can be achieved. In addition to such high hole densities that especially intended for the production of fine fibers relatively low hole densities of 1 up to 2 holes / cm (1 to 2 nozzle channels per cm) without any problems be realized. This latter application is for example for intermediate products between melt-blown products and spunbond products useful. highlight is that the nozzle channels are simple, inexpensive and can be realized inexpensively.
  • the moldings, on the outer surface of which the nozzle channels are intended to be replaced are replaced. That way simple and easy the number, arrangement and size of the Nozzle channels can be varied.
  • the figures show a device for generating Thermoplastic fibers made from a Blow head 1 with a nozzle 2. It is a melt channel 3 for the supply of molten plastic intended.
  • the nozzle 2 has one at its outlet end 4 A plurality of nozzle channels 5 with nozzle openings 6 for the The molten plastic emerges.
  • the feed channels 7 preferably extend and in the embodiment over the entire width of the device or nozzle 2 (i.e. in the direction perpendicular to the paper plane).
  • the feed channels 7 are otherwise by opposite and nozzle lips 9 forming outlet opening 8 are delimited.
  • the walls of each nozzle lip 9 run to the outlet opening 8 together at an angle ⁇ , which in Embodiment is about 50 °. Preferably is the angle ⁇ 30 ° to 70 °.
  • the outlet end 4 of the nozzle 2 or the nozzle tip is flattened and one has corresponding exit surface 12 in which the Bores 10 for the molded body 11 open out.
  • the holes 10 like the nozzle channels 5, they also connect the exit surface 12 with the melt channel 3.
  • the exit surface 12 is vertical to the longitudinal axis of the bore 10 or to the longitudinal axis of the Nozzle channels 5 oriented. Expediently extends the horizontal exit surface 12 over the entire width the nozzle 2 (i.e. perpendicular to the plane of the paper).
  • the tapers Shaped body 11 in its longitudinal direction.
  • the associated bores 10 also have a complementary taper so that the tapered shaped bodies 11 form-fitting in these tapered bores 10 can be used.
  • the tapered shaped bodies 11 are frustoconical educated. So it finds a cone-like one Tapering of the molded bodies 11 to the outlet end 4 of the nozzle 2 there instead. In this way, the molded body 11 through the melt pressure in the melt channel 3 is secure be fixed in their bores 10.
  • the moldings 11 are replaced. I.e. a molded body 11 can be removed from its bore 10 and it can another suitable molded body 11 in this hole 10 can be used in a form-fitting manner. It is within the Invention that stores a plurality of moldings which is characterized by the number and / or the size and / or the arrangement of the nozzle channels 5 on their outer surface differ. By changing these different Shaped body 11 can therefore the number and / or the size and / or the arrangement of the nozzle channels 5 in a simple manner can be varied.
  • Fig. 2 it can be seen that two rows of holes 10 are provided for moldings 11.
  • the holes 10 of the the two rows are each offset from one another. It is also within the scope of the invention, only to provide a series of bores 10 for moldings 11 or more than two rows of holes 10 for molded articles 11 to realize.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Nonwoven Fabrics (AREA)
EP02025772A 2002-11-16 2002-11-16 Dispositif pour la fabrication de fibres en matière thermoplastique Expired - Lifetime EP1420089B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP02025772A EP1420089B1 (fr) 2002-11-16 2002-11-16 Dispositif pour la fabrication de fibres en matière thermoplastique
DE50205368T DE50205368D1 (de) 2002-11-16 2002-11-16 Vorrichtung zur Erzeugung von Fasern aus thermoplastischem Kunststoff
CNB031082122A CN100336947C (zh) 2002-11-16 2003-03-25 由热塑性塑料产生纤维的装置
US10/712,796 US7070403B2 (en) 2002-11-16 2003-11-13 Device for producing fibers from a thermoplastic synthetic resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02025772A EP1420089B1 (fr) 2002-11-16 2002-11-16 Dispositif pour la fabrication de fibres en matière thermoplastique

Publications (2)

Publication Number Publication Date
EP1420089A1 true EP1420089A1 (fr) 2004-05-19
EP1420089B1 EP1420089B1 (fr) 2005-12-21

Family

ID=32116272

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02025772A Expired - Lifetime EP1420089B1 (fr) 2002-11-16 2002-11-16 Dispositif pour la fabrication de fibres en matière thermoplastique

Country Status (4)

Country Link
US (1) US7070403B2 (fr)
EP (1) EP1420089B1 (fr)
CN (1) CN100336947C (fr)
DE (1) DE50205368D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006037371A1 (fr) * 2004-09-30 2006-04-13 Saurer Gmbh & Co. Kg Procede de fusion-soufflage destine au filage par fusion de fines fibres de non-tisses et dispositif de mise en oeuvre de ce procede
EP2145695A1 (fr) * 2008-07-14 2010-01-20 Sika Technology AG Dispositif d'application d'adhésif

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020161062A1 (en) * 2001-11-06 2002-10-31 Biermann Paul J. Structure including a plurality of cells of cured resinous material, method of forming the structure and apparatus for forming the structure
EP2565304A1 (fr) 2011-09-02 2013-03-06 Aurotec GmbH Procédé et dispositif d'extrusion
CN102787374B (zh) * 2012-07-20 2015-02-25 东华大学 一种制备超细纤维的熔喷模头
CN102864502B (zh) * 2012-09-28 2014-09-03 北京化工大学 气流辅助内锥面分流式静电纺丝喷嘴
CN103015082B (zh) * 2012-12-25 2014-08-13 西安建筑科技大学 一种纺丝头及利用其制备编织管/聚合物复合膜的方法
IT202000004639A1 (it) * 2020-03-04 2021-09-04 Cat S R L Filiera a cuspide per la realizzazione tessuto non tessuto di tipo melt-blown

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0474423A2 (fr) * 1990-08-29 1992-03-11 CHICOPEE (a New Jersey corp.) Système à air pour une filière du type fusion-soufflage
WO1993015895A1 (fr) * 1992-02-13 1993-08-19 Accurate Products Co. Matrice de soufflage a chaud avec passage d'air et decrochement prereglables
JPH09157937A (ja) * 1995-12-15 1997-06-17 Teijin Ltd メルトブロー紡糸口金

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3718166A (en) * 1970-10-02 1973-02-27 Midland Ross Corp Manifold and adjustable nozzle assembly for molding machines
DE2936905A1 (de) * 1979-09-12 1981-04-02 Toa Nenryo Kogyo K.K., Tokyo Matrize zum schmelzblasen
AU623381B2 (en) * 1988-03-25 1992-05-14 Mitsui Petrochemical Industries, Ltd. Spinning method employing melt-blowing method and melt-blowing die
DE4238347C2 (de) * 1992-11-13 1994-09-15 Reifenhaeuser Masch Düsenkopf für eine Anlage zur Spinnvliesherstellung nach dem Meltblown-Verfahren
US5352109A (en) * 1993-03-08 1994-10-04 Salvatore Benenati Injection molding apparatus
US6099282A (en) * 1999-04-20 2000-08-08 The University Of Tennessee Research Corporation Multihole melt blown die nosepiece
US6244845B1 (en) * 1999-05-04 2001-06-12 The University Of Tennessee Research Corporation Serrated slit melt blown die nosepiece
DE19925061A1 (de) * 1999-06-01 2000-12-07 Reifenhaeuser Masch Vorrichtung zum Herstellen von Mehrkomponentenfäden aus unterschiedlichen Kunststoffen, insbesondere für ein Vlies
WO2001045919A1 (fr) * 1999-12-21 2001-06-28 Black Clawson Company, Inc. Adaptateur de combinaison multicouche
US6776858B2 (en) * 2000-08-04 2004-08-17 E.I. Du Pont De Nemours And Company Process and apparatus for making multicomponent meltblown web fibers and webs

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0474423A2 (fr) * 1990-08-29 1992-03-11 CHICOPEE (a New Jersey corp.) Système à air pour une filière du type fusion-soufflage
WO1993015895A1 (fr) * 1992-02-13 1993-08-19 Accurate Products Co. Matrice de soufflage a chaud avec passage d'air et decrochement prereglables
JPH09157937A (ja) * 1995-12-15 1997-06-17 Teijin Ltd メルトブロー紡糸口金

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 10 31 October 1997 (1997-10-31) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006037371A1 (fr) * 2004-09-30 2006-04-13 Saurer Gmbh & Co. Kg Procede de fusion-soufflage destine au filage par fusion de fines fibres de non-tisses et dispositif de mise en oeuvre de ce procede
EP2145695A1 (fr) * 2008-07-14 2010-01-20 Sika Technology AG Dispositif d'application d'adhésif

Also Published As

Publication number Publication date
CN100336947C (zh) 2007-09-12
US7070403B2 (en) 2006-07-04
DE50205368D1 (de) 2006-01-26
EP1420089B1 (fr) 2005-12-21
CN1500920A (zh) 2004-06-02
US20040131713A1 (en) 2004-07-08

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