WO2014020094A1 - Dispositif à filière - Google Patents

Dispositif à filière Download PDF

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Publication number
WO2014020094A1
WO2014020094A1 PCT/EP2013/066150 EP2013066150W WO2014020094A1 WO 2014020094 A1 WO2014020094 A1 WO 2014020094A1 EP 2013066150 W EP2013066150 W EP 2013066150W WO 2014020094 A1 WO2014020094 A1 WO 2014020094A1
Authority
WO
WIPO (PCT)
Prior art keywords
nozzle
nozzle openings
nozzle plate
openings
spiral
Prior art date
Application number
PCT/EP2013/066150
Other languages
German (de)
English (en)
Inventor
Jens Neumann-Rodekirch
Original Assignee
Oerlikon Textile Gmbh & Co. Kg
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 Oerlikon Textile Gmbh & Co. Kg filed Critical Oerlikon Textile Gmbh & Co. Kg
Priority to DE112013003862.5T priority Critical patent/DE112013003862A5/de
Priority to CN201380040927.1A priority patent/CN104508193B/zh
Publication of WO2014020094A1 publication Critical patent/WO2014020094A1/fr

Links

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

Definitions

  • the invention relates to a spinneret device for producing a plurality of filaments of a polymer melt according to the preamble of claim 1.
  • a generic spinneret device is known from WO 2010/058480 AI. Such spinnerette devices are used in melt spinning processes for the production of synthetic fibers. In order to produce a plurality of fine filament strands from a supplied polymer melt, the spinneret devices have at their bottom a nozzle plate containing a plurality of nozzle openings. Thus, a filament strand can be extruded from each of the nozzle openings.
  • the number of nozzle openings on the nozzle plate varies considerably. For example, multifilament yarns with 10 to 300 nozzle orifices are produced on the nozzle plate and tow for the production of staple fibers with up to 80,000 nozzle orifices per spinneret. Regardless of the number of nozzle openings, the nozzle openings are usually evenly distributed on the underside of the nozzle plate. As is apparent from the cited document, the nozzle openings are preferably arranged distributed according to a geometric surface pattern on the nozzle plate. As a surface pattern concentric hole circles or parallel rows of holes on spinneret plates are known. In order to NEN of the filaments to produce special effects, a surface pattern is selected in the cited document, which is formed from a group of several spirals. On each of the spirals several nozzle openings are arranged at an uneven distance from each other.
  • nozzle openings of a group form a line, a circle or a curve.
  • the number of lines, circles and curves thus determine the distribution of all nozzle openings at the bottom of the nozzle plate.
  • group divisions of nozzle orifices basically have the disadvantage that the area utilization of the nozzle plate depends on the geometric arrangement of the individual groups relative to each other.
  • superimposed effects of the nozzle openings in the individual groups are not excluded, in which the extruded filaments mutually shadow against a cooling air source, so that an uneven cooling of the filament bundle occurs.
  • Another object of the invention is to facilitate the manufacturability of nozzle openings on nozzle plates in the generic spinning device.
  • the invention is characterized in that the plurality of nozzle openings is determined as a group on the nozzle plate.
  • the location of the nozzle openings is defined by a spiral having a predetermined angle of rotation which determines the geometric area pattern.
  • the invention makes use of the findings from nature to obtain a biomimetic arrangement of the nozzle holes. So it is known from botany that the arrangement of leaves on plant stems or the arrangement of the seeds in the flower of a sunflower is determined by a spiral. In these arrangements, the distribution corresponds to the so-called golden section leading to the golden rotation angle of about 137.5 °.
  • the development of the invention according to claim 2 is particularly advantageous to obtain evenly distributed over the entire surface of the nozzle plate arranged nozzle openings.
  • the heat distribution within the nozzle plate can thus also be optimized, so that the same ambient conditions prevail in the spinneret device at each nozzle opening.
  • the quality in extruding the filaments is evened out to a high degree.
  • scaling is avoided so that improved cooling of the filament strands occurs.
  • each individual position of the Düsenöffnun- gene is determined by its polar coordinates.
  • each individual position of the nozzle opening is defined on the surface of the nozzle plate.
  • n a natural number and represents the consecutive number of the respective nozzle opening
  • the exponent b in a range of values between 0.1 and 2.0
  • a distance and a distribution of the nozzle openings can be influenced by the area parameter d.
  • the distances of the nozzle openings to each other can be varied depending on the choice of the exponent and the area parameter.
  • the nozzle openings can be arranged at a constant distance from each other or at different distances from one another on the nozzle plate.
  • the surface pattern of the nozzle openings bring in a round or rectangular shape. It is also possible to make surface patterns of the nozzle openings on the nozzle plate annular. Such spinnerette devices are particularly suitable for melt-spinning processes for the production of staple fibers.
  • FIG. 1 shows schematically a view of a spinneret device
  • FIG. 1 schematically shows a first exemplary embodiment of the spinneret device according to the invention.
  • the spinneret device has a housing 1 which carries a nozzle plate 2 on its underside.
  • the nozzle plate 2 includes a plurality of nozzle openings 3, which are connected to a formed inside the housing 1 melt supply.
  • the melt supply and the other components of the spinneret device are not shown here.
  • distribution plates and filter elements can still be arranged within the housing 1.
  • the illustrated in Figure 1 embodiment of the spinneret is shown in the form of a nozzle packet sen, which is held by the housing 1. Basically, however, spinnerets are known in which the nozzle plate 2 with several distribution plates are screwed together ver.
  • the spinneret device has a melt supply at the top.
  • the spinnerette device is usually held on a heated spinning beam, wherein the melt supply of the spinneret device is connected to a distribution system.
  • the nozzle plate 2 held on the underside of the housing 1 shows a surface pattern 4 of the nozzle openings 3.
  • the arrangement of the nozzle openings 3 is characterized by a spiral 5, which is determined with a predetermined rotation angle in a range between 130 ° and 145 °.
  • the individual positions of the nozzle openings are determined mathematically and can be calculated by the polar coordinates for each individual nozzle opening from the following formulas:
  • the index number n determines the respective nozzle opening 3.
  • the area parameter d defines the distance between the nozzle openings 3 to each other and thus the number of nozzle openings 3, which can be arranged on the given surface.
  • the exponent b influences the distribution of the nozzle openings and lies in a value range between 0.1 and 2.0.
  • the angle of rotation of the spiral is indicated by the Greek letter ⁇ .
  • each nozzle opening 3 is assigned a defined position on the surface of the nozzle plate.
  • the polar Dinates indicate an angle ⁇ and a radius r, which relate to the nozzle center of the nozzle opening, for each nozzle opening. Together, the nozzle openings 3 at the bottom of the nozzle plate 2 form a spiral with the defined rotation angle ⁇ .
  • the angle of rotation of the spiral is preferably the golden angle which is obtained by division in the golden section.
  • FIG. 2 shows an embodiment of a nozzle plate for this purpose.
  • the nozzle openings 3 on the underside of the nozzle plate 2 are at a constant distance from each other.
  • the angle of rotation ⁇ of the spiral in this case is 137.5 °.
  • the exponent b was chosen to be 0.5, which causes the average distance between adjacent nozzle openings to be constant.
  • the exponent b with the value 0.5 leads to a special case of the spiral, which is called Fermat's spiral.
  • the exponent b influences the uniformity of the turns of the spiral.
  • the angle of rotation ⁇ with the value 137.5 and the exponent b with the value 0.5 are particularly preferred in order to distribute a large number of nozzle holes uniformly over one surface of the nozzle plate.
  • different distances between the nozzle openings can also be realized in the distribution of the nozzle openings.
  • the exponent b has a value above 0.5, the average distances of the nozzle openings to the outside at the nozzle plate are getting larger.
  • Figure 3 an embodiment is shown in Figure 3, in which the surface pattern of the nozzle openings 3 has an annular arrangement.
  • the nozzle openings 3 are arranged in the central region of the nozzle plate 2 with a closer distance to each other. Starting from the nozzle plate center or the origin of the spiral, the distances between the nozzle openings increase to the outside.
  • Such an arrangement is particularly advantageous, for example, in a cooling air supply via a cooling cylinder which extends around the filament bundle. In this case, the cooling air enters the filament bundle radially from outside to inside.
  • the exponent b is set to a value less than 0.5 in the mathematical definition of the nozzle openings.
  • Such distributions of the nozzle openings on the nozzle plate are particularly advantageous when the freshly extruded filament bundle is cooled by a cooling air flow flowing from the inside to the outside.
  • FIG. 4 shows an annular arrangement of the nozzle openings 3 on a nozzle plate, in which the distances between the nozzle openings 3 over the entire area of the nozzle plate 2 are constant.
  • Such spinnerets are preferably used in staple fiber production to a high number of nozzle openings evenly distributed to arrange on a nozzle plate.
  • FIGS. 2 to 4 The exemplary embodiments of nozzle plates illustrated in FIGS. 2 to 4 can be used in the spinneret device illustrated in FIG. In principle, however, the invention is not limited to round spinneret devices.
  • the nozzle arrangement can also be performed on rectangular nozzles by a spiral distribution.
  • An embodiment is shown in FIG. 5, in which the nozzle plate has a rectangular shape.
  • the distribution of the nozzle bores 3 on the nozzle plate 2 is identical to the arrangement of the nozzle openings in the embodiment of Figure 2.
  • the mathematical determination of the positions of the nozzle openings is in this case in the same way and as described above. In this case, only the nozzle openings that fall into a predefined area are taken into account.
  • the spinneret device is characterized on the one hand by the uniform area utilization of the spinneret plate, which has a positive effect in particular on the melt flow and the melt throughput at the nozzle openings. Furthermore, the arrangement of the filament strands after the extrusion within the filament bundle can be influenced in such a way that a material used for the production of the fiber product is used. desired cooling of the filaments occurs. Both the optimization at the nozzle plate and the improved position of the filaments within the filament bundle mean that a very high quality in the production of the fiber products can be achieved.
  • the invention is suitable for spinneret devices which are used for the production of staple fibers, for spunbonded nonwovens or filament yarns. Moreover, the invention is also suitable for spinneret devices for wet or dry spinning processes. In addition to polymer melts, other materials such as glass melts or polymer solutions may be used here.

Abstract

L'invention concerne un dispositif à filière permettant de produire une pluralité de filaments à partir d'une masse fondue polymère, et pourvu d'au moins un porte-filière. Le porte-filière comporte sur une face inférieure une pluralité d'ouvertures de filière qui sont réparties selon une forme géométrique. L'invention vise à exploiter au maximum la surface du porte-filière avec une répartition uniforme des ouvertures de filière. A cet effet, la forme géométrique est déterminée par une spirale présentant un angle de rotation φ dans une plage allant de 130° à 145°.
PCT/EP2013/066150 2012-08-03 2013-08-01 Dispositif à filière WO2014020094A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112013003862.5T DE112013003862A5 (de) 2012-08-03 2013-08-01 Spinndüsenvorrichtung
CN201380040927.1A CN104508193B (zh) 2012-08-03 2013-08-01 纺丝喷嘴设备

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012015388.0 2012-08-03
DE102012015388 2012-08-03

Publications (1)

Publication Number Publication Date
WO2014020094A1 true WO2014020094A1 (fr) 2014-02-06

Family

ID=48985732

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/066150 WO2014020094A1 (fr) 2012-08-03 2013-08-01 Dispositif à filière

Country Status (3)

Country Link
CN (1) CN104508193B (fr)
DE (1) DE112013003862A5 (fr)
WO (1) WO2014020094A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW202146719A (zh) * 2020-02-24 2021-12-16 奧地利商蘭仁股份有限公司 用於製造紡絲黏合不織布之方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH248770A (fr) * 1945-11-16 1947-05-31 Bolle Tombet A Filière pour soie artificielle.
US3709970A (en) * 1969-07-01 1973-01-09 Fmc Corp Apparatus and method for quenching and stabilizing extruded molten filaments
FR2273886A1 (fr) * 1974-06-04 1976-01-02 Teijin Ltd Procede et appareil pour le filage par fusion de polymeres formant des fibres
JP2005273039A (ja) * 2004-03-23 2005-10-06 Toray Ind Inc 極細合成繊維の製造方法および製造装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6147825A (ja) * 1984-08-15 1986-03-08 Teijin Ltd ピツチ系炭素繊維
CN102292478B (zh) * 2008-11-21 2014-01-29 东洲贸易株式会社 多孔纺丝头和使用该多孔纺丝头的捻丝的制造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH248770A (fr) * 1945-11-16 1947-05-31 Bolle Tombet A Filière pour soie artificielle.
US3709970A (en) * 1969-07-01 1973-01-09 Fmc Corp Apparatus and method for quenching and stabilizing extruded molten filaments
FR2273886A1 (fr) * 1974-06-04 1976-01-02 Teijin Ltd Procede et appareil pour le filage par fusion de polymeres formant des fibres
JP2005273039A (ja) * 2004-03-23 2005-10-06 Toray Ind Inc 極細合成繊維の製造方法および製造装置

Also Published As

Publication number Publication date
CN104508193B (zh) 2016-10-26
DE112013003862A5 (de) 2015-05-28
CN104508193A (zh) 2015-04-08

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