EP1420089B1 - Vorrichtung zur Erzeugung von Fasern aus thermoplastischem Kunststoff - Google Patents
Vorrichtung zur Erzeugung von Fasern aus thermoplastischem Kunststoff Download PDFInfo
- Publication number
- EP1420089B1 EP1420089B1 EP02025772A EP02025772A EP1420089B1 EP 1420089 B1 EP1420089 B1 EP 1420089B1 EP 02025772 A EP02025772 A EP 02025772A EP 02025772 A EP02025772 A EP 02025772A EP 1420089 B1 EP1420089 B1 EP 1420089B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- die
- channels
- cited
- mould
- 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.)
- Expired - Lifetime
Links
- 238000004519 manufacturing process Methods 0.000 title description 4
- 239000012815 thermoplastic material Substances 0.000 title description 4
- 239000004033 plastic Substances 0.000 claims description 15
- 230000001154 acute effect Effects 0.000 claims description 5
- 229920001169 thermoplastic Polymers 0.000 claims 1
- 238000000465 moulding Methods 0.000 description 16
- 239000000835 fiber Substances 0.000 description 8
- 238000007664 blowing Methods 0.000 description 7
- 239000000155 melt Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000003716 rejuvenation Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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 Fibers of thermoplastic material, wherein at least a melt channel for the supply of molten Plastic is provided and wherein a nozzle exists is that at its outlet end at least one nozzle channel with a nozzle opening for the exit of the molten Plastic has.
- the invention is based on the technical problem, a Specify device of the type mentioned, a high density of nozzle channels or a high density hole and in terms of varying the way Size and arrangement of the nozzle channels through simplicity and Flexibility distinguishes.
- the invention teaches a device for producing fibers made of thermoplastic material, wherein at least one melt channel is provided for the supply of molten plastic, wherein a nozzle is present, which has at its outlet end at least one row of nozzle channels with nozzle openings for the exit of the molten plastic, wherein in the outlet end of the nozzle bores are introduced, in which bores at least one shaped body is fitted in a form-fitting manner and wherein at least one nozzle channel is introduced in the contact region between the shaped body and the bore.
- the invention basically also includes a device with a nozzle which has only a single nozzle opening for the exit of the molten plastic.
- the inventive Device consists of a die, which is the melt channel and the nozzle has.
- Device produced fibers are especially filaments, d. H. Fibers with large, theoretically infinite length. Basically, with the Device but also shorter fibers are produced.
- the fibers produced according to the invention can be used especially for Production of nonwovens or nonwoven surface products serve.
- the inventive Device for supplying blowing air which are arranged with the proviso that the blowing air on the plastic strands emerging from the nozzle channels at an acute angle.
- Blas Kunststoff vomstrahlen generated on the emerging from the nozzle channels Plastic strands strike at an acute angle.
- These Blas Kunststoff vomstrahlen can also off a series of closely spaced nozzle bores emerge as single jets, which then become the Blas Kunststoff vomstrahl complete.
- the outlet end the nozzle or the nozzle tip formed 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 that the nozzle is not pointed downwards as in a conventional melt-blown blow head, but that the tip is as it were cut off.
- the exit surface formed at the nozzle or nozzle tip perpendicular or substantially perpendicular to the nozzle channels or the outlet direction of the Nozzle channels arranged exiting plastic strands. It is within the scope of the invention that the nozzle channels and the Holes for the moldings the exit surface on flattened exit end of the nozzle with the melt channel connect.
- the exit surface Preferably, at the edge of the exit surface provided from the exit surface excellent leading edges, on opposite sides of the exit surface are arranged. It is also within the scope of the invention that blowing air ducts for the supply of blowing air in the Outlet surface open.
- the flattening of the nozzle or Nozzle tip can aerodynamically by the aforementioned Leading edges and possibly opening in the exit surface Blown air channels neutralized or compensated become.
- the at least one nozzle channel in the outer surface of the Introduced molding is thus located in the outer shell of the molding and is as it were in the Outer casing engraved. It is within the scope of the invention that a plurality of nozzle channels in the outer surface of a shaped body are introduced and expediently over the Scope or part of the circumference of this shaped body distributed are arranged. Conveniently, the nozzle channels as introduced into the outer surface of the molding Run ing grooves, preferably in cross section U-shaped or semicircular.
- tapers a shaped body in relation to its length. Length means here the expansion of the shaped body in the direction of the longitudinal axis the bores or the nozzle channels. Preferably finds a taper of the shaped body to the outlet end of the nozzle or to the exit surface instead.
- the cross section of the Formgropers is therefore preferred to the outlet end or to the outlet openings of the nozzle channels towards smaller or narrower. This allows the molded body by the upcoming Melt pressure position safe in its associated hole be fixed.
- - is a shaped body in cross-section circular.
- a Shaped body frustoconical is a Shaped body frustoconical.
- the molded body So then expediently has a cone-shaped taper towards the outlet end or the exit surface towards.
- a shaped body but also as a cuboid, as Prism or the like may be formed.
- At least one Series of holes (for the moldings) at the exit end extends across the width of the device or the nozzle. Conveniently, it is a linear or straight line. According to one embodiment of the invention extend two mutually offset rows of Holes across the width of the nozzle.
- the main body of the device or the nozzle can on the one hand made of a metal, preferably made of steel. It But is also within the scope of the invention that the nozzle completely or partly of a thermally insulating material, for example, consists of ceramic material.
- the moldings expediently consist of the material from which also the nozzle is made.
- the invention is based on the finding that in the Device according to the invention a plurality of nozzle channels 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 be achieved. In addition to such high hole densities, the intended especially 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 problems be realized. This latter application is for example, for intermediates between melt-blown products and spunbond products expediently. highlight is that the nozzle channels on simple, inexpensive and cost-effective manner can be realized.
- the moldings, on the outer surface of the nozzle channels are intended to be replaced. This way you can simply and easily the number, arrangement and size of the Nozzle channels are varied.
- the figures show a device for the production of Fibers made of thermoplastic material, which consist of a Blaskopf 1 with a nozzle 2 consists. It is a melt channel 3 for the supply of molten plastic intended.
- the nozzle 2 has at its outlet end 4 a Plurality of nozzle channels 5 with nozzle openings 6 for the Outlet of the molten plastic.
- the feeder channels 7 preferably extend and in the embodiment over the entire width of the device or the nozzle. 2 (i.e., in the direction perpendicular to the paper plane).
- the feeder channels 7 are incidentally by opposite and the outlet opening 8 forming nozzle lips 9 limited.
- the walls of each nozzle lip 9 run to the outlet opening 8 out at an angle ⁇ together, in the Embodiment is about 50 °.
- the angle ⁇ 30 ° to 70 °.
- the invention are in the outlet end 4 of the nozzle. 2 Holes 10 introduced, in which holes 10 preferably and in the embodiment each a single Shaped body 11 is fitted form-fitting manner. In the contact area between the shaped body 11 and bore 10 are in Embodiment in each case a plurality of nozzle channels 5 introduced. In the figures it can be seen that the Diameter of a bore 10 is greater by a multiple as the diameter of a nozzle channel 5.
- the nozzle channels 5 are introduced into the outer surface of the molded body 11.
- the nozzle channels 5 is a U-shaped cross section and thus form as it were melt grooves in the outer shell of the molding 11. According to one embodiment and in the embodiment (see Fig.
- Fig. 1 it can be seen that the outlet end 4 of the nozzle 2 and the nozzle tip is formed flattened and a corresponding exit surface 12, in which the 10 holes for the moldings 11 open.
- the holes 10 as well as the nozzle channels 5 connect so the exit surface 12 with the melt channel 3.
- the exit surface 12 is vertical to the longitudinal axis of the bore 10 and to the longitudinal axis of the Nozzle channels 5 oriented. Appropriately extends the horizontal exit surface 12 over the entire width the nozzle 2 (i.e., perpendicular to the paper plane).
- the taper Shaped body 11 in its longitudinal direction.
- the tapered moldings 11 are frusto-conical educated. So it finds a cone-like Rejuvenation of the molded body 11 to the outlet end 4 of the nozzle. 2 out instead. In this way, the molded body 11 through the position in the melt channel 3 pending melt pressure be fixed in their holes 10.
- the moldings 11 are replaced. Ie. a shaped body 11 can be removed from its bore 10 and it can another matching shaped body 11 in this hole 10 are used positively. It lies within the framework of Invention that stores a plurality of moldings is determined by the number and / or size and / or the arrangement of the nozzle channels 5 on its outer surface differ. By replacing these different ones Shaped body 11 can therefore be the number and / or the size and / or the arrangement of the nozzle channels 5 in a simple manner be varied.
- Fig. 2 it can be seen that two rows of holes 10 are provided for molded body 11.
- the holes 10 of two rows are each offset from each other. It is also within the scope of the invention, only to provide a series of holes 10 for moldings 11 or more than two rows of holes 10 for moldings 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)
Description
wobei zumindest ein Schmelzekanal für die Zuführung von schmelzflüssigem Kunststoff vorgesehen ist,
wobei eine Düse vorhanden ist, die an ihrem Austrittsende zumindest eine Reihe von Düsenkanälen mit Düsenöffnungen für den Austritt des schmelzflüssigen Kunststoffes aufweist,
wobei in das Austrittsende der Düse Bohrungen eingebracht sind, in welche Bohrungen jeweils zumindest ein Formkörper formschlüssig eingepasst ist
und wobei im Kontaktbereich zwischen Formkörper und Bohrung zumindest ein Düsenkanal eingebracht ist. Die Erfindung umfasst grundsätzlich auch eine Vorrichtung mit einer Düse, die lediglich eine einzige Düsenöffnung für den Austritt des schmelzflüssigen Kunststoffes aufweist.
- Fig. 1
- einen Schnitt durch eine erfindungsgemäße Vorrichtung und
- Fig. 2
- den Gegenstand nach Fig. 1 aus Richtung des Pfeiles A.
Claims (9)
- Vorrichtung zur Erzeugung von Fasern aus thermoplastischem Kunststoff, wobei zumindest ein Schmelzekanal (3) für die Zuführung von schmelzflüssigem Kunststoff vorgesehen ist,
wobei eine Düse (2) vorhanden ist, die an ihrem Austrittsende (4) zumindest eine Reihe von Düsenkanälen (5) mit Düsenöffnungen (6) für den Austritt des schmelzflüssigen Kunststoffes aufweist,
wobei in das Austrittsende (4) der Düse (2) Bohrungen (10) eingebracht sind, in welche Bohrungen (10) jeweils zumindest ein Formkörper (11) formschlüssig eingepasst ist
und wobei im Kontaktbereich zwischen Formkörper (11) und Bohrung (10) zumindest ein Düsenkanal (5) eingebracht ist. - Vorrichtung nach Anspruch 1, wobei Zuführungseinrichtungen für Blasluft mit der Maßgabe angeordnet sind, dass die Blasluft auf die aus den Düsenkanälen (5) austretenden Kunststoffstränge unter einem spitzen Winkel auftrifft.
- Vorrichtung nach einem der Ansprüche 1 oder 2, wobei das Austrittsende (4) der Düse (2) abgeflacht ausgebildet ist und eine Austrittsfläche (12) aufweist, in der die Bohrungen (10) münden.
- Vorrichtung nach Anspruch 3, wobei am Rande der Austrittsfläche (12) aus der Austrittsfläche (12) herausragende Leitflanken (13) vorgesehen sind.
- Vorrichtung nach einem der Ansprüche 3 oder 4, wobei Blasluftkanäle (14) in der Austrittsfläche (12) münden.
- Vorrichtung nach einem der Ansprüche 1 bis 5, wobei der zumindest eine Düsenkanal (5) in die Außenoberfläche des Formkörpers (11) eingebracht ist.
- Vorrichtung nach einem der Ansprüche 1 bis 6, wobei der Formkörper (11) sich in Bezug auf seine Länge verjüngt.
- Vorrichtung nach einem der Ansprüche 1 bis 7, wobei der Formkörper (11) kegelstumpfförmig ausgebildet ist.
- Vorrichtung nach einem der Ansprüche 1 bis 8, wobei sich zumindest eine Reihe von Bohrungen (10) am Austrittsende (4) über die Breite der Düse (2) erstreckt.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50205368T DE50205368D1 (de) | 2002-11-16 | 2002-11-16 | Vorrichtung zur Erzeugung von Fasern aus thermoplastischem Kunststoff |
EP02025772A EP1420089B1 (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 (de) | 2002-11-16 | 2002-11-16 | Vorrichtung zur Erzeugung von Fasern aus thermoplastischem Kunststoff |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1420089A1 EP1420089A1 (de) | 2004-05-19 |
EP1420089B1 true EP1420089B1 (de) | 2005-12-21 |
Family
ID=32116272
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02025772A Expired - Lifetime EP1420089B1 (de) | 2002-11-16 | 2002-11-16 | Vorrichtung zur Erzeugung von Fasern aus thermoplastischem Kunststoff |
Country Status (4)
Country | Link |
---|---|
US (1) | US7070403B2 (de) |
EP (1) | EP1420089B1 (de) |
CN (1) | CN100336947C (de) |
DE (1) | DE50205368D1 (de) |
Families Citing this family (8)
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 |
WO2006037371A1 (de) * | 2004-09-30 | 2006-04-13 | Saurer Gmbh & Co. Kg | Meltblown-verfahren zum schmelzspinnen von feinen vliesfasern und vorrichtung zur durchführung des verfahrens |
EP2145695A1 (de) * | 2008-07-14 | 2010-01-20 | Sika Technology AG | Vorrichtung zur Klebstoffapplikation |
EP2565304A1 (de) | 2011-09-02 | 2013-03-06 | Aurotec GmbH | Extrusionsverfahren und -vorrichtung |
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 |
Family Cites Families (13)
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 |
US5080569A (en) * | 1990-08-29 | 1992-01-14 | Chicopee | Primary air system for a melt blown die apparatus |
CA2130107C (en) * | 1992-02-13 | 2003-09-30 | Peter G. Buehning | Meltblowing die having presettable air-gap and set-back |
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 |
JP3450107B2 (ja) * | 1995-12-15 | 2003-09-22 | 帝人株式会社 | メルトブロー紡糸口金 |
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 (en) * | 1999-12-21 | 2001-06-28 | Black Clawson Company, Inc. | Multiple layer combining adapter |
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 |
-
2002
- 2002-11-16 DE DE50205368T patent/DE50205368D1/de not_active Expired - Lifetime
- 2002-11-16 EP EP02025772A patent/EP1420089B1/de not_active Expired - Lifetime
-
2003
- 2003-03-25 CN CNB031082122A patent/CN100336947C/zh not_active Expired - Fee Related
- 2003-11-13 US US10/712,796 patent/US7070403B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US7070403B2 (en) | 2006-07-04 |
US20040131713A1 (en) | 2004-07-08 |
CN1500920A (zh) | 2004-06-02 |
DE50205368D1 (de) | 2006-01-26 |
CN100336947C (zh) | 2007-09-12 |
EP1420089A1 (de) | 2004-05-19 |
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