EP0284784B1 - Ensemble de filage pour des fibres à deux composants avec une structure âme-gaine - Google Patents

Ensemble de filage pour des fibres à deux composants avec une structure âme-gaine Download PDF

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Publication number
EP0284784B1
EP0284784B1 EP88102885A EP88102885A EP0284784B1 EP 0284784 B1 EP0284784 B1 EP 0284784B1 EP 88102885 A EP88102885 A EP 88102885A EP 88102885 A EP88102885 A EP 88102885A EP 0284784 B1 EP0284784 B1 EP 0284784B1
Authority
EP
European Patent Office
Prior art keywords
plate
spinnerettes
intermediate plate
channels
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
EP88102885A
Other languages
German (de)
English (en)
Other versions
EP0284784A3 (en
EP0284784A2 (fr
Inventor
Arnold Beck
Dieter Dr. Ahrendt
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.)
NEUMAG Neumuenstersche Maschinen und Anlagenbau GmbH
Original Assignee
NEUMAG Neumuenstersche Maschinen und Anlagenbau 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 NEUMAG Neumuenstersche Maschinen und Anlagenbau GmbH filed Critical NEUMAG Neumuenstersche Maschinen und Anlagenbau GmbH
Priority to AT88102885T priority Critical patent/ATE69470T1/de
Publication of EP0284784A2 publication Critical patent/EP0284784A2/fr
Publication of EP0284784A3 publication Critical patent/EP0284784A3/de
Application granted granted Critical
Publication of EP0284784B1 publication Critical patent/EP0284784B1/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
    • 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

Definitions

  • the invention relates to a nozzle package for spinning bicomponent threads with a core-sheath structure according to the preamble of claim 1.
  • Synthetic bicomponent threads with a core-sheath structure are produced in order to combine the advantageous properties of different components.
  • a polymer with high strength and low elongation as the core, as a jacket a polymer that gives the thread good dyeability or a pleasant feel.
  • a defined thread structure is required, in which the jacket coaxially envelops the core in a constant thickness. This requirement can be easily met with complicated nozzle arrangements.
  • mass production however, it is necessary to accommodate a large number of suitable nozzles in a very small space. This creates considerable technical difficulties.
  • DE-OS 20 04 431 describes a nozzle package, the nozzle plate of which has six nozzles which are arranged on the corners of a regular hexagon.
  • the intermediate plate is provided with six spinning inserts, each of which protrudes with a projecting conical part into the inlet funnel of the nozzles.
  • the spinning inserts have axial bores for the supply of the core component, which are essentially aligned with the nozzles.
  • the intermediate plate has an axial feed line for the jacket component, which is connected to the inlet funnels of the nozzles by a channel system. Due to the design principle, this nozzle package is limited to a small number of nozzles which are arranged at large mutual distances.
  • the nozzle plate and the intermediate plate are made of relatively thin metal sheets and are arranged at a short distance from one another.
  • the nozzles are simple bores, which are arranged closely side by side in large numbers.
  • the space between the two plates is connected by means of holes distributed around the circumference to an annular distributor channel surrounding the plate, which forms the feed line for one of the two components.
  • This component consequently forms a layer flowing radially in the direction of the axis between the two plates, which layer is penetrated by thin axial currents of the other component.
  • No core-jacket threads of a defined structure can be produced with this nozzle package.
  • the dividing surfaces between the two components are uneven and irregular in the individual threads.
  • Another nozzle package with a large number of closely arranged nozzles is the subject of EP-A2-0 128 013.
  • two separate, nested channel systems are accommodated on the top of the intermediate plate, each of which consists of a number of grooves.
  • Each groove has a series of holes at the bottom of the groove, so that a system of holes is assigned to each channel system.
  • the holes of one system are aligned with the nozzles and serve to feed the core component.
  • the holes in the other system are arranged so that each hole in the first system is surrounded by several holes in the other system.
  • Through holes in a third plate the one channel system of the intermediate plate is connected to a feed chamber for the core component, and the other channel system is connected to a feed chamber for the jacket component.
  • the inflow conditions are the same for all nozzles, but the supply of the jacket component does not guarantee an exactly concentric thread structure.
  • the height of the nozzle package is relatively high due to the additional third plate required.
  • the invention has for its object to provide a nozzle package according to the preamble of claim 1, which enables the production of numerous bicomponent threads with a uniform coaxial structure in a confined space and is easy to manufacture and has a low overall height.
  • the two polymer components are kept separate in the space between the nozzle plate and the intermediate plate and are fed to the individual nozzles in precisely guided, separate streams.
  • This advantage which was previously only achievable with individual nozzles or with complicated arrangements of a few nozzles, is realized by the invention in a nozzle package in which many hundreds or even a few thousand nozzles can be installed in a very small space.
  • the nozzle package consists of a few components that are produced by simple milling and drilling.
  • the feature of claim 2 has extraordinary manufacturing advantages.
  • the feature of claim 3 has the advantage that the channels are short, so that the pressure drop is kept low.
  • Figure 1 shows a plan view of the nozzle package with a partial section.
  • Figure 2 shows an offset longitudinal section through the nozzle package.
  • FIG. 3 shows a cross section through the nozzle packet on an enlarged scale.
  • FIG. 4 shows a plan view of a part of the nozzle plate on a further enlarged scale.
  • FIG. 5 shows a detail from FIG. 3 on an enlarged scale.
  • FIG. 6 shows a horizontal section through the intermediate plate for a section corresponding to FIG. 4.
  • the nozzle package essentially consists of three superimposed parts which are firmly connected by screws, namely a nozzle plate 1, an intermediate plate 2 and a hood 3. Seals are inserted between the individual parts.
  • the nozzle package has the shape of a rectangle, the length of which is approximately four times the width.
  • Two functionally separate systems 4, 5 are accommodated in the nozzle package. Since one system is completely the same as the other, it is sufficient to describe only one of the two systems.
  • the nozzle plate 1 has the shape of a rectangular flat bowl with a raised edge. It is divided in the middle into two compartments by a transverse dividing wall 6, the upper edge of which lies in the same plane as the upper edge of the edge, one of which belongs to the system 4 and the other to the system 5. In each compartment, the bottom surface is provided with longitudinal, parallel grooves 7, between which narrow webs 8 have remained. The grooves 7 are interrupted in the middle of the compartment by a transverse, wide threshold 9, the height of which corresponds to the height of the webs 8.
  • Each groove 7 has mirror-symmetrical extensions 10, which are segment-like in plan view, at equal intervals on both sides.
  • the side walls of the groove 7 therefore consist alternately of flat and cylindrical shell-shaped wall sections 11, 12.
  • the groove base is provided with a series of nozzles 13, the axes of which the axes of curvature of the cylindrical shell-shaped wall sections 12 coincide.
  • Each nozzle 13 consists of an inlet funnel 14, the mouth radius of which corresponds to the radius of curvature of the cylindrical shell-shaped wall sections 12, and a capillary bore 15.
  • the nozzles 13 of two adjacent grooves 7 are arranged offset to one another, i.e. their axes lie in a top view on the corners of an oblique grid; this can be seen in FIGS. 4 and 6, in which the deviation of the cutting angle from a right angle is designated by ⁇ .
  • the intermediate plate 2 has longitudinal slats 16 on the underside, the lower parts of which penetrate into the grooves 7 of the nozzle plate 1 down to the groove base.
  • the width of a lamella is approximately equal to the distance between two opposite flat wall sections 11 of the groove wall, so that the lamella 16 is seated in the groove 7 without any significant play.
  • the cross section of the intermediate plate 2 which can be seen best in FIG. 3, resembles a comb.
  • Each lamella 16 is provided with a series of vertical bores 17 so that each bore 17 is aligned with a nozzle 13.
  • the bores 17 - as can best be seen from FIG. 5 - have a much larger diameter than the capillary bores 15 over most of their length. They are narrowed like a capillary only on a short piece near the lower end. At the upper end, each hole is chamfered at the edge ( Figure 3).
  • a filter screen 18 covers the entire surface of the intermediate plate 2 provided with bores 17.
  • the slats 16 are interrupted by a transverse, continuous distribution channel 19, the width of which corresponds to the width of the threshold 9.
  • Rectangular channels 20 are located between the slats 16 above the level up to which the webs 8 extend.
  • the upper boundary surfaces 21 of the channels 20 lie in a slightly inclined plane, so that the height, which is immediately next to the distribution channel 19 with the height of the distribution channel 19 coincides, decreases in the direction of the edge or in the direction of the partition 6.
  • the channels 20 are in open connection with the distribution channel 19.
  • the hood 3 consists of a thick metal plate, from which two vault-shaped chambers 22 have been worked out on the underside. These correspond to the two compartments of the nozzle plate 1.
  • a bore 23 opens into each of the two chambers 22 and penetrates the chamber ceiling.
  • a pipe section 24 sits in a second bore, which passes through the chamber 22, penetrates the intermediate plate 2 and opens into the distribution channel 19 from above.
  • the core component is fed by means of a spinning pump through a pipe connected to the bore 23 and fills the chamber 22. It is pressed through the bores 17 and reaches the inlet funnels 14 in the form of thread-like streams their length has a relatively large diameter, the flow resistance is low.
  • the jacket component is also pressed by means of a spinning pump via the pipe 24 into the distribution channel 19 and distributed to the channels 20 on both sides.
  • the extensions 10 form passages that the jacket component perpendicular steer downward into the inlet funnel 14, where it surrounds the thread-like streams of the core component emerging from the bores 17.
  • a thin, coaxial layer of the cladding component is carried away by the core component due to the injector action.
  • the emerging threads are cooled in the usual way by an air stream; the staggered arrangement of the nozzles 13 prevents the individual threads from lying in the slipstream.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Multicomponent Fibers (AREA)

Claims (5)

  1. Ensemble de filières pour le filage de fils a deux composants présentant une structure d'âme-gaîne, comprenant
       une plaque porte-filières (1), qui est pourvue de plusieurs filières,
       un couvercle (3), qui, conjointement avec la plaque porte-filières, renferme au moins une cavité,
       une plaque intermédiaire (2), qui subdivise la cavité et qui est pourvue de plusieurs alésages qui sont en alignement avec les filières,
       au moins un conduit d'amenée (23) pour le composant d'âme, qui débouche dans une chambre située entre le couvercle et la plaque intermédiaire, et
       au moins un conduit d'amenée pour le composant de gaîne qui débouche dans l'espace intercalaire entre la plaque porte-filières et la plaque intermédiaire,
       caractérisé par les particularités suivantes :
       la plaque porte-filières (1) présente, du côté supérieur, un certain nombre de rainures parallèles (7),
       chaque rainure (7) présente, sur son fond, une série de filières (13), la plaque intermédiaire (2) présente, sur sa face inférieure, un certain nombres de lamelles (16),
       chaque lamelle (16) comporte une série d'alésages (17),
       chaque lamelle (16) plonge dans une rainure (7) par sa zone inférieure,
       des canaux (20), qui sont raccordés à un canal distributeur (19), se trouvent entre les parties supérieures des lamelles (16),
       les canaux (20) sont en communication avec des entonnoirs d'alimentation (14) des filières (13) par l'intermédiaire de passages (10).
  2. Ensemble de filières suivant la revendication 1, caractérisé en ce que les passages (10) sont réalisés sous la forme d'élargissements en forme de segments de cylindre de la rainure (7).
  3. Ensemble de filières suivant l'une des revendications 1 et 2, caractérisé en ce que des canaux (20) partent des deux côtés du canal distributeur (19).
  4. Ensemble de filières suivant l'une des revendications 1 à 3, caractérisé en ce que la hauteur des canaux (20) diminue au fur et à mesure que croît la distance par rapport au canal distributeur (19).
  5. Ensemble de filières suivant l'une des revendications 1 à 4, caractérisé en ce qu'il comporte au moins deux systèmes identiques, fonctionnellement séparés (4, 5).
EP88102885A 1987-04-01 1988-02-26 Ensemble de filage pour des fibres à deux composants avec une structure âme-gaine Expired - Lifetime EP0284784B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88102885T ATE69470T1 (de) 1987-04-01 1988-02-26 Duesenpaket zum spinnen von bikomponentenfaeden mit kern-mantel-struktur.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873710946 DE3710946A1 (de) 1987-04-01 1987-04-01 Duesenpaket zum spinnen von bikomponentenfaeden mit kern-mantel-struktur
DE3710946 1987-04-01

Publications (3)

Publication Number Publication Date
EP0284784A2 EP0284784A2 (fr) 1988-10-05
EP0284784A3 EP0284784A3 (en) 1989-11-29
EP0284784B1 true EP0284784B1 (fr) 1991-11-13

Family

ID=6324617

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88102885A Expired - Lifetime EP0284784B1 (fr) 1987-04-01 1988-02-26 Ensemble de filage pour des fibres à deux composants avec une structure âme-gaine

Country Status (5)

Country Link
US (1) US4846653A (fr)
EP (1) EP0284784B1 (fr)
JP (1) JPS63256709A (fr)
AT (1) ATE69470T1 (fr)
DE (2) DE3710946A1 (fr)

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DE3941824A1 (de) * 1989-12-19 1991-06-27 Corovin Gmbh Verfahren und spinnvorrichtung zur herstellung von mikrofilamenten
IT1255891B (it) * 1992-10-19 1995-11-17 Testa di estrusione per filati bicomponenti con filiera ad alta densita' di fori
US6402841B1 (en) * 1997-02-21 2002-06-11 Akzo Nobel N.V. Glue application device with glue conduit surrounding hardener conduit
US5853635A (en) * 1997-06-18 1998-12-29 Kimberly-Clark Worldwide, Inc. Method of making heteroconstituent and layered nonwoven materials
DE19750724C2 (de) * 1997-11-15 2003-04-30 Reifenhaeuser Masch Vorrichtung zum Herstellen eines Spinnvlieses aus Kern-Mantel-Struktur aufweisenden Bikomponentenfäden
DE19750723C1 (de) * 1997-11-15 1999-10-07 Reifenhaeuser Masch Vorrichtung zum Herstellen eines Spinnvlieses aus Bikomponentenfäden
IT1302696B1 (it) * 1998-10-19 2000-09-29 Rosaldo Fare Apparecchiatura e procedimento per la realizzazione di fibre ofilamenti continui bicomponenti con l'uso di inserti di condotti
US6168409B1 (en) * 1998-11-13 2001-01-02 Rosaldo Fare Apparatus for making two component fibers or continuous filaments using flexible tube inserts
US6413071B1 (en) 2000-03-27 2002-07-02 Basf Corporation Thin plate spinnerette assembly
US6461133B1 (en) 2000-05-18 2002-10-08 Kimberly-Clark Worldwide, Inc. Breaker plate assembly for producing bicomponent fibers in a meltblown apparatus
US6474967B1 (en) 2000-05-18 2002-11-05 Kimberly-Clark Worldwide, Inc. Breaker plate assembly for producing bicomponent fibers in a meltblown apparatus
DE10037906A1 (de) * 2000-08-03 2002-02-14 Hdw Isoliertechnik Gmbh Vielkammerprofile sowie Vorrichtung und Verfahren zur Herstellung derselben
US7014442B2 (en) * 2002-12-31 2006-03-21 Kimberly-Clark Worldwide, Inc. Melt spinning extrusion head system
CN109592897B (zh) * 2019-01-16 2024-01-30 河南光远新材料股份有限公司 一种电子纱拉丝设备的漏板
DE102019004890A1 (de) * 2019-07-11 2021-01-14 Rheinisch-Westfälische Technische Hochschule (Rwth) Aachen Textilfaser, Textil und Verfahren zur Herstellung einer Textilfaser

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US3315021A (en) * 1964-06-19 1967-04-18 Snia Viscosa Process for the production of crimpable composite synthetic yarns
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CH486570A (de) * 1966-09-21 1970-02-28 Inventa Ag Vorrichtung zur Herstellung von aus mindestens zwei verschiedenen Polymeren bestehenden Verbundfäden
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JPS58110073U (ja) * 1982-01-20 1983-07-27 日本エステル株式会社 同心型芯鞘状複合繊維紡糸用口金
JPS59223306A (ja) * 1983-06-01 1984-12-15 Chisso Corp 紡糸口金装置

Also Published As

Publication number Publication date
DE3866145D1 (de) 1991-12-19
US4846653A (en) 1989-07-11
DE3710946A1 (de) 1988-10-13
ATE69470T1 (de) 1991-11-15
EP0284784A3 (en) 1989-11-29
JPH0347324B2 (fr) 1991-07-19
JPS63256709A (ja) 1988-10-24
EP0284784A2 (fr) 1988-10-05

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