EP1483435B1 - Hohlfaser-spinndüse - Google Patents

Hohlfaser-spinndüse Download PDF

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Publication number
EP1483435B1
EP1483435B1 EP03706500A EP03706500A EP1483435B1 EP 1483435 B1 EP1483435 B1 EP 1483435B1 EP 03706500 A EP03706500 A EP 03706500A EP 03706500 A EP03706500 A EP 03706500A EP 1483435 B1 EP1483435 B1 EP 1483435B1
Authority
EP
European Patent Office
Prior art keywords
plate
needle
hollow fiber
bore
spinning nozzle
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
EP03706500A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1483435A1 (de
Inventor
Torsten Keller
Jens-Holger Stahl
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.)
Fresenius Medical Care Deutschland GmbH
Original Assignee
Fresenius Medical Care Deutschland GmbH
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 Fresenius Medical Care Deutschland GmbH filed Critical Fresenius Medical Care Deutschland GmbH
Priority to EP09008291A priority Critical patent/EP2112256B1/de
Publication of EP1483435A1 publication Critical patent/EP1483435A1/de
Application granted granted Critical
Publication of EP1483435B1 publication Critical patent/EP1483435B1/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
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
    • 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
    • D01D4/022—Processes or materials for the preparation of 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
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor
    • D01D5/34—Core-skin structure; Spinnerette packs therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/217—Spinnerette forming conjugate, composite or hollow filaments
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49428—Gas and water specific plumbing component making
    • Y10T29/49432—Nozzle making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material

Definitions

  • the invention relates to a hollow fiber spinneret according to the preamble of claim 1.
  • Hollow-fiber spinnerets are already known which serve for the production of polymeric hollow-fiber membranes.
  • such hollow fiber spinnerets 10 consist of a base body 12 made of metal, in which a plurality of bores 14, 16, 18, 22 are introduced.
  • a tube 20 is fitted, in which a Hurllstoff- or support means channel 22 is formed for introducing the precipitant or support means.
  • the holes 16 and 18 form Massezu thoroughlykanäle for a polymer, which exits via an annular channel 22, which also consists of a corresponding hole, yes.
  • methods of conventional metal working are used.
  • the nozzle structure created by the assembly of both nozzle parts with an inaccuracy, for example, the geometry of the annulus 22 added up from the manufacturing errors in the manufacture of the body 12 and the tube 20.
  • an inaccuracy for example, the geometry of the annulus 22 added up from the manufacturing errors in the manufacture of the body 12 and the tube 20.
  • mounting errors added which also contribute to an inaccuracy can lead the geometry.
  • the known in the art hollow fiber spinnerets are not arbitrarily reduced in size.
  • the object of the invention is therefore to provide hollow fiber spinnerets with which even fine capillary membranes can be produced, wherein the manufacturing tolerances are minimized and the manufacturing process for these hollow fiber spinnerets is significantly cheaper.
  • this object is achieved by the combination of the features of claim 1.
  • a completely new design for hollow fiber spinnerets is provided because the invention avoids conventional metalworking and uses microstructure techniques.
  • at least two plate-shaped bodies structured by microstructure technology are joined together to form the hollow-fiber spinneret.
  • a second unstructured plate is preferably added to a first plate formed by microstructure technology, wherein the second plate is patterned only after application to the first plate.
  • the plates are connected flat to each other.
  • a hollow fiber spinneret consists of two plates, wherein in the first plate the Massezu Foodkanäle, a mass flow equalization zone, a precipitant / Stauerschzu Georgiabohrung and a needle stump are excluded, while in the second plate a nozzle structure with mass annular gap and a needle with a precipitant / Stauerschbohrung are excluded.
  • the second plate additionally contains the MassezuGermankanäle and the mass flow homogenization zone: There accounts for these elements and the needle stump on the first plate.
  • a special feature of this construction is that the needle of the spinneret is connected to the first plate only at one end face.
  • a hollow-fiber spinneret with which a simple capillary hollow-fiber membrane can be produced, advantageously have the following dimensions: Thickness of the first plate: 0.250 - 1.500 mm Thickness of the second plate: 0.050-1.500 mm Outer diameter of the needle: 0,020 -1,500 mm Length of the needle incl.
  • Needle stump 0.100 - 2.000 mm Diameter of the precipitation agent bore: 0.010 - 1.000 mm Length of precipitation agent hole: 0.150 - 2.500 mm Outer diameter of the annular gap: 0.040 - 3.000 mm Length of the annular gap: 0.050 - 1.500 mm Height of the spinneret: 0.300 - 3.000 mm Edge length of the spinneret: 1,000 -. 25.00 mm.
  • a further preferred embodiment of the invention consists of three plates, wherein the first plate contains feed channels, a homogenization zone and a needle stub with a central feed bore, a second plate which adjoins the first plate, feed channels, a homogenization zone and a further needle stub with a having a concentric annular channel and a needle extension having a central bore, and wherein a third plate, which in turn adjoins the second plate, a nozzle structure comprising a central bore and two concentric annular gaps.
  • Capillary membranes with coextruded bilayers can be produced by means of this hollow-fiber spinneret according to the invention.
  • the hollow fiber spinneret is composed of three individual plates, wherein the first plate has a central feed bore, a parallel to the first plate second feed channels and arranged on these equalization zones and a needle stub with concentric annular channel and a central bore and wherein the third plate adjoining the second plate has a nozzle structure consisting of a central bore and two concentric annular gaps.
  • the outer diameter of the multi-channel hollow fiber spinneret is less than 1 mm.
  • the outer diameter of the multi-channel hollow fiber spinneret is less than or equal to 0.45 mm.
  • FIG. 2 a hollow fiber spinneret 10 according to a first embodiment of the invention is shown.
  • the entire body 26 is composed of two individual plates 30 and 32.
  • ground supply channels 34, a mass flow equalization zone 36, a precipitating agent supply bore 38 and a needle stub 40 are formed by a corresponding etching operation, which will be described later in detail.
  • the three-dimensional design of here in FIG. 2 shown hollow fiber spinneret results from FIG. 4 , There it can be seen that the Massezu Foodkanäle, ie the channels for supplying the considered the considered here.
  • the mass flow equalization zone 36 results as an annular space around the needle stub 40 around.
  • the Desillatorizu operationsbohrung 38 is widened in its pointing to the top of the area, as can be seen in particular of Figure 2.
  • monocrystalline silicon for example, has a thickness of the first plate of 0.4 mm, a thickness of the second plate of 0.1 mm, an outer diameter of the needle of 0.05 mm, a length of the needle including the needle stump of 0.15 mm Diameter of Desillatoribohrung 38 in the extended range of 0.1 mm, an outer diameter of the annular gap 42 of 0.1 mm and a length of the annular gap 42 of 0.1 mm.
  • the height of the main body 26, ie the height of the entire spinneret 10, is accordingly 0.5 mm, while an edge length of the main body 26 of the spinneret 10 is 2 mm.
  • hollow fiber spinnerets In the production of hollow fiber spinnerets by means of microstructure technology is assumed by 2 round wafer discs with 100 to 300 mm diameter. From these wafers, many spinneret structures are simultaneously produced. The individual hollow fiber spinnerets 10 are then obtained by dicing the finished wafers. The separated split spinnerets can each contain a single nozzle structure, as shown here, but also several nozzle structures in a nozzle structure composite. This is achieved by not separating all of the nozzle structures formed on the wafer from one another, but rather that a plurality of nozzle structures together form a multiple nozzle unit, which are cut along the outer contour of the wafer.
  • the production of the spinnerets 10 begins with the structuring on both sides of a first wafer, which receives the elements 34, 36, 38, 40 of the plate 30 of the spinneret 10.
  • the structures are fabricated by a series of standard lithography techniques, ie photoresist masks, SiO, Si-N or the like, and standard etching techniques.
  • RIE reactive ion etching
  • D-RIE reactive ion deep etching
  • cryo-etching Particularly suitable are special deep etching methods such as D-RIE and cryo-etching.
  • the lithographic masks for the front and back must be aligned visually.
  • the second wafer, from which the second plate is to be produced is bonded to the correspondingly structured first wafer. In this case, all bonding methods can be used, anodic bonding, direct bonding or the like.
  • the nozzle structure 48 with annular gap 42 and precipitation agent bore 46 is produced in a two-stage etching process.
  • the first step only the deeper precipitation agent hole is advanced.
  • both structures are then finished etched.
  • the above-mentioned lithography and etching processes are again used, although the use of the deep etching process is even more advisable here than during the processing of the first wafer.
  • the individual spinnerets are cut out of the wafer by suitable separation methods, such as wafer sawing or laser processing.
  • a hollow fiber spinneret 10 for producing a hollow fiber coextruded from two layers is shown.
  • a hollow fiber spinneret 10 with a base body 100 consisting of three individual plates 102, 104 and 106 is shown.
  • the individual plates in turn consist of monocrystalline silicon.
  • a feed channel 108 is excluded for the precipitant.
  • feed channels 110, 112 for a first polymer are provided, which open into an associated homogenization zone 114.
  • the equalization zone 114 surrounds a corresponding needle stump 116.
  • a precipitant hole 118 is also excluded, which is surrounded by a further needle stub 120 and an annular space 122. Furthermore, further feed channels 124 with subsequent homogenization zone 126 are excluded in the second plate 104. Finally, the third plate 106 has two annular gaps 128 and 130 for the respective polymeric materials to be co-extruded, and a needle 132 with precipitant well 134. In the variants of Figs 3a, 3b and 3c the supply channels 124 are each configured differently. While in the embodiment according to the FIG. 3a the feed channel 124 for the second polymer is provided only in the second plate 104, which runs in the variant according to the FIG.
  • the three plates 102, 104 and 106 are in turn connected to the main body 100 by a suitable bonding method, advantageously direct bonding. Otherwise corresponds to the manufacturing method for the hollow fiber spinneret 10 according to the Figures 3 and 5 , analogous to that, as already stated by the FIG. 2 and 4 was explained in detail.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Artificial Filaments (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
EP03706500A 2002-03-13 2003-02-13 Hohlfaser-spinndüse Expired - Lifetime EP1483435B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09008291A EP2112256B1 (de) 2002-03-13 2003-02-13 Verfahren zur Herstellung einer Hohlfaser-Spinndüse

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10211052A DE10211052A1 (de) 2002-03-13 2002-03-13 Hohlfaser-Spinndüse
DE10211052 2002-03-13
PCT/EP2003/001447 WO2003076701A1 (de) 2002-03-13 2003-02-13 Hohlfaser-spinndüse

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP09008291A Division EP2112256B1 (de) 2002-03-13 2003-02-13 Verfahren zur Herstellung einer Hohlfaser-Spinndüse

Publications (2)

Publication Number Publication Date
EP1483435A1 EP1483435A1 (de) 2004-12-08
EP1483435B1 true EP1483435B1 (de) 2009-09-02

Family

ID=27797745

Family Applications (2)

Application Number Title Priority Date Filing Date
EP03706500A Expired - Lifetime EP1483435B1 (de) 2002-03-13 2003-02-13 Hohlfaser-spinndüse
EP09008291A Expired - Lifetime EP2112256B1 (de) 2002-03-13 2003-02-13 Verfahren zur Herstellung einer Hohlfaser-Spinndüse

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP09008291A Expired - Lifetime EP2112256B1 (de) 2002-03-13 2003-02-13 Verfahren zur Herstellung einer Hohlfaser-Spinndüse

Country Status (12)

Country Link
US (2) US7393195B2 (ko)
EP (2) EP1483435B1 (ko)
JP (1) JP4340161B2 (ko)
KR (1) KR100974985B1 (ko)
AT (2) ATE492666T1 (ko)
AU (1) AU2003208849A1 (ko)
BR (1) BR0307233A (ko)
CA (1) CA2474274C (ko)
DE (3) DE10211052A1 (ko)
ES (2) ES2329564T3 (ko)
HR (1) HRP20040714B1 (ko)
WO (1) WO2003076701A1 (ko)

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US8080729B2 (en) 2008-11-24 2011-12-20 Palo Alto Research Center Incorporated Melt planarization of solar cell bus bars
US8586129B2 (en) 2010-09-01 2013-11-19 Solarworld Innovations Gmbh Solar cell with structured gridline endpoints and vertices
DE102010055731A1 (de) 2010-12-22 2012-06-28 Fresenius Medical Care Deutschland Gmbh Delaminationsfreie Membran
DE102011010921A1 (de) 2011-02-10 2012-08-16 Fresenius Medical Care Deutschland Gmbh Delaminationsfreie Membran
CN103269781B (zh) 2010-12-22 2016-05-25 德国弗雷泽纽斯医疗保健股份有限公司 无脱层的膜
US10371468B2 (en) 2011-11-30 2019-08-06 Palo Alto Research Center Incorporated Co-extruded microchannel heat pipes
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CN103911678B (zh) * 2014-04-17 2016-04-13 华中科技大学 一种用于电流体喷印的同轴喷嘴
CN103981581B (zh) * 2014-05-29 2016-05-04 苏州东茂纺织实业有限公司 一种仿天然纤维熔丝装置
CN104775171B (zh) * 2015-03-30 2018-01-02 临邑大正特纤新材料有限公司 孔藕状纤维纺丝组件
CN104762672A (zh) * 2015-04-23 2015-07-08 宁波斯宾拿建嵘精密机械有限公司 一种喷丝头
CN106236323B (zh) * 2016-08-05 2017-11-17 浙江大学 一种具有接触性引导功能的神经导管及其制备方法和装置
WO2018056584A1 (ko) 2016-09-21 2018-03-29 삼성전자 주식회사 피부 상태 측정 방법 및 이를 위한 전자 장치
DE102017208011A1 (de) * 2017-05-11 2018-11-15 Fresenius Medical Care Deutschland Gmbh Spinndüse, Vorrichtung mit einer Spinndüse, Verfahren zu Herstellung einer Hohlfaser oder Hohlfasermembran mit einer Spinndüse und Filter
US10889915B2 (en) 2018-01-31 2021-01-12 Saudi Arabian Oil Company Producing fibers using spinnerets
DE102019203837A1 (de) 2019-03-20 2020-09-24 Fresenius Medical Care Deutschland Gmbh Anlage und Verfahren zur Herstellung von Hohlfasermembranen
US20230008772A1 (en) * 2021-07-08 2023-01-12 University Of Kentucky Research Foundation Spinneret, blowing system and method for producing hollow fibers
TW202323607A (zh) 2021-09-10 2023-06-16 瑞士商海洋安全公司 纖維

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Also Published As

Publication number Publication date
JP4340161B2 (ja) 2009-10-07
EP1483435A1 (de) 2004-12-08
ES2329564T3 (es) 2009-11-27
US8490283B2 (en) 2013-07-23
US7393195B2 (en) 2008-07-01
US20050087637A1 (en) 2005-04-28
KR100974985B1 (ko) 2010-08-09
BR0307233A (pt) 2004-12-07
ATE492666T1 (de) 2011-01-15
HRP20040714B1 (en) 2012-07-31
AU2003208849A1 (en) 2003-09-22
JP2005520061A (ja) 2005-07-07
US20080268082A1 (en) 2008-10-30
ATE441742T1 (de) 2009-09-15
HRP20040714A2 (en) 2005-08-31
EP2112256B1 (de) 2010-12-22
CA2474274A1 (en) 2003-09-18
DE10211052A1 (de) 2003-10-23
EP2112256A1 (de) 2009-10-28
DE50311868D1 (de) 2009-10-15
DE50313356D1 (de) 2011-02-03
ES2357373T3 (es) 2011-04-25
WO2003076701A1 (de) 2003-09-18
CA2474274C (en) 2011-11-29
KR20040094722A (ko) 2004-11-10

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