EP0430926B1 - Spinndüse - Google Patents

Spinndüse Download PDF

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Publication number
EP0430926B1
EP0430926B1 EP90890308A EP90890308A EP0430926B1 EP 0430926 B1 EP0430926 B1 EP 0430926B1 EP 90890308 A EP90890308 A EP 90890308A EP 90890308 A EP90890308 A EP 90890308A EP 0430926 B1 EP0430926 B1 EP 0430926B1
Authority
EP
European Patent Office
Prior art keywords
carrier plate
spinning
capillaries
spinning nozzle
plate
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
Application number
EP90890308A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0430926A3 (en
EP0430926A2 (de
Inventor
Stefan Zikeli
Hermann Koberger
Dieter Dr. Eichinger
Stefan Dr. Astegger
Karin Dr. Weinzierl
Raimund Jurhovic
Bernd Dr. Wolschner
Heinrich Dr. Firgo
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.)
Lenzing AG
Original Assignee
Lenzing AG
Chemiefaser Lenzing AG
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 Lenzing AG, Chemiefaser Lenzing AG filed Critical Lenzing AG
Publication of EP0430926A2 publication Critical patent/EP0430926A2/de
Publication of EP0430926A3 publication Critical patent/EP0430926A3/de
Application granted granted Critical
Publication of EP0430926B1 publication Critical patent/EP0430926B1/de
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
    • 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
    • D01D4/027—Spinnerettes containing inserts

Definitions

  • the invention relates to a spinneret with a nozzle head and a spinning plate, which consists of a stable carrier plate, in which holes are provided, inserts in which the capillaries are made are inserted or pressed into the holes.
  • Spinning nozzles are required for the production of fibers, the starting material of the spinning mass consisting of organic or inorganic material.
  • the flowable or pumpable material which mostly has a very high viscosity, is pressed through the differently shaped nozzle capillaries and then, depending on the process, solidified into fibers in specially designed spinning and post-treatment steps.
  • a good spinneret is expected to have quality features such as the quality of the bores (dimensional accuracy), smoothness of the borehole walls, sharp edges of the borehole outlet, smoothness of the nozzle bottom, corrosion resistance and specially shaped spinning channels.
  • the necessary strength of the spinneret should be mentioned, since the spinneret is under enormous pressure when spinning the mass. Especially when spinning highly viscous cellulose solution spinning masses, the use of spinneret or spinneret materials with high strength is necessary, since spinning pressures up to 200 bar can occur.
  • NMMO N-methylmorpholine-N-oxide
  • a tertiary amine-N-oxide which acts as a solvent for cellulose. Due to the high spinning viscosities, spinnerets with reinforced spinning plates must be used.
  • the stickiness of the threads must be reduced. This can be achieved by applying a non-solvent liquid to the surface of the freshly extruded threads in order to reduce the effect of the solvent (cf. DE-AS 28 44 163).
  • a polyalkylene ether in particular polyethylene glycol, can be added to the tertiary amine oxide (cf. DD-PS 218 121).
  • the known spinnerets do sometimes have high capillary densities, but they cannot withstand high spinning pressures: the spinning plate bulges or bursts. Such nozzles are used in the viscose process.
  • spinnerets are known that are made from special steel types that can withstand high loads. Such spinnerets are used in the dry spinning process for plastics.
  • This nozzle construction in turn has the disadvantage that a pre-drilling in the relatively hard but firm material is necessary for the respective spinning capillary due to the complicated attachment of the nozzle holes in the nozzle plate, in order then to be able to attach the capillary with a fine diameter. Due to the larger diameter of the pilot hole, only a smaller number of spinning capillaries is possible in the nozzle plate, which in turn results in a lower capillary density.
  • nozzles with interchangeable inserts are to be created.
  • the material of the insert is equally hard or even harder than the material of the carrier plate (see page 1, right column, lines 61-63), and the insert has practically the same thickness as the carrier plate (see Fig. 1). It is therefore clear that the hole density is by no means can be larger than if the capillaries were made directly in the carrier plate.
  • a carrier plate is therefore used, the thickness of which can be dimensioned sufficiently large so that it withstands high spinning pressures. It can also be made from any solid material because it does not itself have any spinning capillaries. Plates, e.g. Precious metal platelets, inserted or pressed, in which - due to the softness of the metal - the necessary number of spinning capillaries can be attached relatively easily without pre-drilling.
  • the holes in the carrier plate are preferably stepped bores, the gradation being close to the outer surface of the carrier plate and the smaller diameter being on the outer surface of the carrier plate.
  • a perforated plate is provided on the inside of the carrier plate and a filter is arranged between the carrier plate and the perforated plate.
  • the holes in the perforated plate are matched to the arrangement of the platelets, so that the cellulose solution or polymer melt is distributed appropriately. Dirt particles or undissolved polymer fragments are retained by the filter.
  • the nozzle head 1 (Fig. 1) suitably consists of corrosion-resistant stainless steel. It has heating channels 6 for temperature control and forms the upper part of the spinneret into which the cellulose solution is fed and continuously tempered during spinning.
  • a perforated plate 3 In the nozzle head 1 is a perforated plate 3, a filter 4 and a carrier plate 2 is used. These three elements are pressed onto the nozzle head 1 by a threaded nut 5. A soft seal (not shown) can be used for sealing.
  • the carrier plate 2 (see FIG. 2) has a plurality of holes 7 designed as stepped bores. (For the sake of simplicity, only a single hole 7 is shown in FIG. 2.) Platelets 8 (see FIG. 3) made of relatively soft material are pressed into these holes. In this soft material, many capillaries 9 can easily be produced close to each other. (In FIG. 3, only a single capillary 9 is shown for simplification.)
  • the holes in the perforated plate 3 are arranged in exactly the same way as the holes in the carrier plate 2, with the filter 4 in between.
  • the filters 4 can have very different pore sizes and consist of different materials. Corrosion-resistant metal fleeces are preferred.
  • the spinning mass is distributed over the perforated plate 3, filtered and then enters the holes 7 or stepped bores and from there into the capillaries 9 of the platelets 8.
  • a spinneret designed according to the invention high capillary densities can be achieved despite the high compressive strength.
  • the element-like structure of the nozzle package allows the carrier plates to be exchanged individually with precious metal plates in which there are capillaries with different diameters, lengths and cross sections.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Nozzles (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Magnetic Heads (AREA)
  • Fuel-Injection Apparatus (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Threshing Machine Elements (AREA)
  • Coating Apparatus (AREA)
  • Continuous Casting (AREA)
  • Artificial Filaments (AREA)
EP90890308A 1989-11-29 1990-11-27 Spinndüse Expired - Lifetime EP0430926B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0272489A AT397392B (de) 1989-11-29 1989-11-29 Spinndüse
AT2724/89 1989-11-29

Publications (3)

Publication Number Publication Date
EP0430926A2 EP0430926A2 (de) 1991-06-05
EP0430926A3 EP0430926A3 (en) 1992-05-13
EP0430926B1 true EP0430926B1 (de) 1995-09-06

Family

ID=3539303

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90890308A Expired - Lifetime EP0430926B1 (de) 1989-11-29 1990-11-27 Spinndüse

Country Status (23)

Country Link
EP (1) EP0430926B1 (ko)
JP (1) JPH03174006A (ko)
KR (1) KR0157408B1 (ko)
CN (1) CN1052155A (ko)
AT (2) AT397392B (ko)
AU (1) AU6657690A (ko)
BR (1) BR9006022A (ko)
CA (1) CA2030043A1 (ko)
CZ (1) CZ283858B6 (ko)
DE (1) DE59009625D1 (ko)
DK (1) DK0430926T3 (ko)
ES (1) ES2024388T3 (ko)
FI (1) FI92845C (ko)
GR (1) GR910300097T1 (ko)
IE (1) IE69038B1 (ko)
IL (1) IL96314A0 (ko)
NO (1) NO176445C (ko)
PL (1) PL165105B1 (ko)
PT (2) PT96019A (ko)
RO (1) RO108011B1 (ko)
RU (1) RU1838462C (ko)
TR (1) TR27239A (ko)
YU (1) YU48011B (ko)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2565304A1 (de) 2011-09-02 2013-03-06 Aurotec GmbH Extrusionsverfahren und -vorrichtung
EP2565303A1 (de) 2011-09-02 2013-03-06 Aurotec GmbH Extrusionsverfahren
EP3702496A1 (de) 2019-02-26 2020-09-02 Lenzing Aktiengesellschaft Formwerkzeug und verfahren zur herstellung eines formwerkzeugs zur extrusion cellulosischer formkörper
EP3901333A1 (de) 2020-04-22 2021-10-27 Aurotec GmbH Herstellung von filamenten mit kontrollierter gasströmung

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATA53792A (de) * 1992-03-17 1995-02-15 Chemiefaser Lenzing Ag Verfahren zur herstellung cellulosischer formkörper, vorrichtung zur durchführung des verfahrens sowie verwendung einer spinnvorrichtung
US5652001A (en) * 1993-05-24 1997-07-29 Courtaulds Fibres Limited Spinnerette
ZA943387B (en) * 1993-05-24 1995-02-17 Courtaulds Fibres Holdings Ltd Spinning cell
US5984655A (en) * 1994-12-22 1999-11-16 Lenzing Aktiengesellschaft Spinning process and apparatus
DE10043297B4 (de) * 2000-09-02 2005-12-08 Thüringisches Institut für Textil- und Kunststoff-Forschung e.V. Verfahren zur Herstellung von Cellulosefasern und Cellulosefilamentgarnen
RU2215071C1 (ru) * 2002-05-18 2003-10-27 Открытое акционерное общество "Чепецкий механический завод" Фильера для формования химических нитей и волокон из растворов
AT413545B (de) 2003-07-14 2006-03-15 Chemiefaser Lenzing Ag Verfahren zur herstellung cellulosischer formkörper
CN103352258A (zh) * 2013-07-08 2013-10-16 常熟市沪联印染有限公司 一种带有滤网的喷丝装置
CN104762671B (zh) * 2015-04-16 2017-01-04 湖州旭彩高新纤维有限公司 一种纤维加热喷丝装置
KR102002726B1 (ko) 2018-05-08 2019-07-23 조승형 용융방사 시스템용 노즐 고정장치
CN108525282B (zh) * 2018-06-15 2024-05-14 广东工业大学 一种脑萎缩老年人康复器材

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE360000C (de) * 1920-06-11 1922-09-28 Romuald Kuehnel Spinnduese und Verfahren zu ihrer Herstellung
BE477016A (ko) * 1946-12-02
DE808872C (de) * 1948-10-02 1951-07-19 Degussa Spinnduese zur Herstellung vollsynthetischer Faeden
BE498674A (ko) * 1949-11-23
NL6600025A (ko) * 1966-01-04 1967-01-25
GB1126609A (en) * 1966-07-20 1968-09-11 Du Pont Spinneret
US3737506A (en) * 1970-04-03 1973-06-05 Viscose Suisse Soc D Process and apparatus for continuous extrusion of highly-viscous melts

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2565304A1 (de) 2011-09-02 2013-03-06 Aurotec GmbH Extrusionsverfahren und -vorrichtung
EP2565303A1 (de) 2011-09-02 2013-03-06 Aurotec GmbH Extrusionsverfahren
WO2013030400A1 (de) 2011-09-02 2013-03-07 Aurotec Gmbh Extrusionsverfahren und -vorrichtung
WO2013030399A1 (de) 2011-09-02 2013-03-07 Aurotec Gmbh Extrusionsverfahren
EP3702496A1 (de) 2019-02-26 2020-09-02 Lenzing Aktiengesellschaft Formwerkzeug und verfahren zur herstellung eines formwerkzeugs zur extrusion cellulosischer formkörper
WO2020173783A1 (de) 2019-02-26 2020-09-03 Lenzing Aktiengesellschaft Formwerkzeug und verfahren zur herstellung eines formwerkzeugs zur extrusion cellulosischer formkörper
EP3901333A1 (de) 2020-04-22 2021-10-27 Aurotec GmbH Herstellung von filamenten mit kontrollierter gasströmung

Also Published As

Publication number Publication date
CZ283858B6 (cs) 1998-06-17
KR0157408B1 (ko) 1998-12-01
TR27239A (tr) 1994-12-20
EP0430926A3 (en) 1992-05-13
JPH03174006A (ja) 1991-07-29
YU48011B (sh) 1996-08-13
PT8495U (pt) 1995-08-09
GR910300097T1 (en) 1991-12-10
PL287957A1 (en) 1991-12-02
YU217990A (sh) 1994-06-10
IL96314A0 (en) 1991-08-16
FI92845C (fi) 1995-01-10
AT397392B (de) 1994-03-25
NO176445C (no) 1995-04-05
NO905145D0 (no) 1990-11-28
ATA272489A (de) 1993-08-15
RU1838462C (ru) 1993-08-30
PL165105B1 (pl) 1994-11-30
DK0430926T3 (da) 1995-10-23
CS542790A3 (en) 1992-03-18
KR910009969A (ko) 1991-06-28
PT96019A (pt) 1992-08-31
IE904289A1 (en) 1991-06-05
CA2030043A1 (en) 1991-05-30
EP0430926A2 (de) 1991-06-05
FI905437A (fi) 1991-05-30
CN1052155A (zh) 1991-06-12
IE69038B1 (en) 1996-08-07
NO176445B (no) 1994-12-27
BR9006022A (pt) 1991-09-24
PT8495T (pt) 1992-11-30
FI92845B (fi) 1994-09-30
ES2024388A4 (es) 1992-03-01
RO108011B1 (ro) 1994-01-31
FI905437A0 (fi) 1990-11-02
DE59009625D1 (de) 1995-10-12
NO905145L (no) 1991-05-30
ATE127542T1 (de) 1995-09-15
AU6657690A (en) 1991-06-06
ES2024388T3 (es) 1995-11-01

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