WO2005093138A1 - Procede et dispositif de filage a chaud de fines fibres synthetiques - Google Patents

Procede et dispositif de filage a chaud de fines fibres synthetiques Download PDF

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Publication number
WO2005093138A1
WO2005093138A1 PCT/EP2005/002612 EP2005002612W WO2005093138A1 WO 2005093138 A1 WO2005093138 A1 WO 2005093138A1 EP 2005002612 W EP2005002612 W EP 2005002612W WO 2005093138 A1 WO2005093138 A1 WO 2005093138A1
Authority
WO
WIPO (PCT)
Prior art keywords
fibers
fiber
nozzle device
nozzle
outlet side
Prior art date
Application number
PCT/EP2005/002612
Other languages
German (de)
English (en)
Inventor
Mathias Stündel
Mathias Gröner-Rothermel
Original Assignee
Saurer 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 Saurer Gmbh & Co. Kg filed Critical Saurer Gmbh & Co. Kg
Publication of WO2005093138A1 publication Critical patent/WO2005093138A1/fr

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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
    • D01D5/08—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)
    • 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
    • D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes

Definitions

  • the invention relates to a method for melt spinning synthetic fine fibers for nonwoven manufacture according to the preamble of claim 1 and a device for carrying out the method according to the preamble of claim 9.
  • a device for carrying out the method according to the preamble of claim 9. For the production of fine fiber nonwovens, it is known that an extruded fiber strand by means of a gas flow immediately after Extruding is divided into several fine fibers, which are then laid down to form the fleece. Such fibers have an average fiber diameter of typically less than 10 ⁇ m.
  • two basic methods for the production of very fine fibers are known in the prior art.
  • a first variant of the method and the device for melt spinning fine fibers is known from DE 199 29 709 AI and is referred to in specialist circles as the so-called Nanoval method.
  • the known method is based on the fact that a pressure effect is generated on the fiber strand under the action of the gas flow and a nozzle device, which leads to the fiber strand bursting, so that a large number of fine, essentially endless fibers are produced.
  • the hydrostatic pressure prevailing inside the fiber is greater than the gas pressure surrounding the fiber strand, as a result of which the fiber strand bursts.
  • the fibers are then led to a deposit under the effect of the gas flow and deposited as a fleece.
  • the object is achieved according to the invention by a method with the features according to claim 1 and by a device with the features according to claim 9.
  • the invention is characterized in that a further process parameter is provided in order to influence the production of fine fibers.
  • a further process parameter is provided in order to influence the production of fine fibers.
  • the particular advantage of the process parameter provided by the additional cooling air flow is that, on the one hand, the guidance of the fibers can be influenced by the gas stream emerging from the nozzle device and, on the other hand, the parameter enables a direct effect on the formation of the fibers. For example, the cooling of the fibers can be intensified.
  • the additional air flow preferably acts to suppress turbulent flows. especially in an area where the fibers have not yet cooled and are therefore not yet firmly formed. This essentially prevents sticking of individual fibers. Furthermore, the fibers can be run in a quiet run while cooling.
  • the air flow additionally supplied below the nozzle device is preferably generated by a passive system in which the gas flow with the fibers is guided through an ejector device arranged below the nozzle device.
  • This method is particularly suitable for directly including the air from the environment below the nozzle device without any external service for guiding and cooling the fibers.
  • the climate air can thus be predetermined as conditioned air with regard to air temperature, air humidity and air volume, so that specific cooling conditions can be set on the fibers.
  • a cooling condition relevant to the fibers after the fiber strand has been cut can advantageously be set by the additional air flow.
  • the method according to the invention can advantageously be used for melt spinning endless fibers or fibers of finite length.
  • the device according to the invention has a cooling air flow generator which is arranged on the outlet side of the nozzle device and which generates an additional air flow acting on the fibers.
  • the air flow can be generated passively or actively.
  • the preferred embodiment of the device according to the invention provides for passive generation of the cooling air flow, in which the cooling flow generator is designed as an ejector device which is arranged with a fiber inlet at a distance from the outlet side of the nozzle device and which has an intake duct opening into the fiber inlet. A suction effect is thus generated with the fibers under the action of the incoming gas flow, so that the additional air flow is supplied via the intake duct.
  • the ejector device is formed by a plurality of shaped sheets which are held directly on the outlet side of the nozzle device and which form an intake duct with the outlet side of the nozzle device.
  • the additional air flow can thus be generated by simple means below the nozzle device.
  • the intake duct can be connected directly to the environment or to a climatic chamber.
  • the fiber inlet In order to maintain the guidance of the fibers as well as special cooling effects, it is further proposed to design the fiber inlet with a guide cross section extending in the running direction of the fibers with a constant or increasing size. Different shapes of the guide cross-section are possible.
  • the cooling current generator is formed by an injector device.
  • the injector device has a fiber guide channel and a blowing channel opening into the fiber guide channel.
  • the fiber guide channel is arranged at a distance from the outlet side of the nozzle device, to be able to take up the gas flow and the fibers.
  • the additional air flow is then blown into the fiber guide duct via the blowing duct.
  • the blowing duct is preferably connected to a compressed air source.
  • the guide cross section of the fiber guide channel is designed with increasing size, so that there are no sudden changes in the speed of the air flows.
  • the method and the device according to the invention are particularly suitable for producing the finest fibers with a fiber cross section of ⁇ 10 ⁇ m, preferably in the range from 2 to 4 ⁇ m. All common types of polymer such as polypropylene, polyethylene, polyester or polyamide can be used.
  • Fig. 1 shows schematically a longitudinal sectional view of a first embodiment of the device according to the invention
  • Fig. 2 schematically shows a longitudinal sectional view of a further embodiment of the device according to the invention
  • FIG. 3 shows schematically a section of a further exemplary embodiment of the device according to the invention 4 to 8 schematically different forms of a fiber inlet of an ejector.
  • FIG. 9 schematically another embodiment of the device according to the invention
  • a first embodiment of the device according to the invention for performing the method according to the invention is shown schematically in a longitudinal sectional view.
  • the device thus has a spinneret 1, which is connected to a melt feed 15.
  • the melt feed 15 usually connects the spinneret 1 to a melt source through which a polymer melt is fed to the spinneret 1 under pressure.
  • the spinneret 1 has a nozzle bore 2 on its underside.
  • a plurality of nozzle bores 2 are formed on the underside of the spinneret 1 in a specific arrangement, preferably in a row arrangement with one or more rows next to one another.
  • the spinneret 1 extends transversely to the plane of the drawing over a spinning area in order to be able to produce a fleece of a certain width.
  • a nozzle device 5 is arranged at a short distance from the spinneret 1 and extends parallel to the spinneret 1 over the entire spinning area.
  • the nozzle device 5 has a nozzle mouth 8, which are arranged with the nozzle bore 2 of the spinneret 1 in a common vertical plane.
  • the nozzle mouth 8 of the nozzle device 5 has a nozzle shape, for example a Laval nozzle shape.
  • a pressure chamber 4 is formed, which is connected via a pressure connection 9 with one not shown here
  • Gas pressure source is connected.
  • the pressure chamber 9 extends to both sides th of the spinneret 1.
  • the pressure chamber is preferably connected on both long sides to a gas pressure source.
  • An ejector device 10 which acts as a cooling current generator, is arranged below the nozzle device 5.
  • the ejector device 10 is formed by two opposing shaped plates 11.1 and 11.2, which form a gap-shaped fiber inlet 12 between them.
  • the fiber inlet 12 is arranged in the vertical plane spanned by the nozzle mouth 8 and the nozzle bore 2.
  • the fiber inlet 12 has a guide cross-section that is larger than the guide cross-section of the nozzle mouth 8.
  • the shaped plates 11.1 and 11.2 each have horizontally oriented transverse legs 16.1 and 16.2 on the outlet side 6 of the nozzle device 5.
  • An intake duct 17 is formed between the transverse legs 16.1 and 16.2 and the outlet side 6 of the nozzle device 5.
  • the suction opening 18 formed at the end of the intake duct 17 is connected directly to the environment below the nozzle device 5.
  • the fiber inlet 12 is formed with parallel guide legs 20.1 and 20.2, so that an essentially constant guide cross section is established.
  • a fleece tray 13 is arranged at a distance below the ejector device 10 and is usually formed by a gas-permeable conveyor belt.
  • a polymer melt is fed under pressure via the melt inlet 15 to the spinneret 1.
  • the polymer melt is extruded through the nozzle bores 2 formed on the underside of the spinneret 1 to form a fiber strand 3.
  • a fiber strand 3 is guided together with a gas flow generated by the pressure chamber 4 and the nozzle device 5 through the nozzle mouth 8 of the nozzle device 5.
  • the gas flow is preferably formed by hot air, which is supplied to the pressure chamber 4 via a gas pressure source, not shown here.
  • the pressure in the pressure chamber 4 and the pressure on the outlet side 6 of the nozzle device 5 is now set such that the expansion of the gas flow when it passes through the nozzle mouth 8 leads to the fiber strand bursting on the outlet side 6 of the nozzle device 5.
  • the fiber strand 3 bursts into a plurality of endless fibers 7.
  • the process is based on the fact that the fiber strand is caught by a gas stream and drawn off directly at the nozzle.
  • the fiber strand bursts into many individual fibers.
  • the fiber strand is liquid in the core before it bursts, but the outer skin is already firm and is caused to burst by shrinkage due to cooling and by the negative pressure in the expanding gas flow. An additional air flow is generated to enable the fibers to be pulled off evenly and undisturbed after they burst.
  • the fibers 7 are guided through the gas flow into the fiber inlet 12 of the ejector device 10. This creates a suction flow from the surroundings in the adjacent intake duct 17, which generates an additional air flow into the fiber inlet 12.
  • the additional air flow initially creates a laminar overall flow, so that premature turbulence in the gas flow is prevented.
  • the cooling of the fibers is intensified, so that the fibers 7 rapidly solidify.
  • the sucked in air is entrained by the gas flow and influences it. This allows the gas flow of the nozzle device to be controlled. He can do it like one Air cushions are worn centered, or braked or distracted.
  • the function can advantageously be determined by a specific configuration of the shaped plates 11.1 and 11.2 of the ejector device 10. The shape allows the amount of air sucked in or the type of gas flow to be influenced.
  • the distance between the nozzle device 5 and the ejector device 10 could be made adjustable in the range from 5 mm to 10 cm.
  • the fibers 7 are led out of the ejector device 10 and are blown onto the fleece tray 13.
  • a fleece 14 is formed from the fibers 7 on the fleece tray 13.
  • the ejector device 10 could also be formed by shaping plates which are designed asymmetrically to one another. In this way, for example, directed shelves can be forced to produce the fleece.
  • FIG. 1 A further exemplary embodiment of the device according to the invention is shown schematically in FIG.
  • the exemplary embodiment is also shown in a longitudinal sectional view, the extruded fiber strands being extruded in a row-like arrangement.
  • the structure and arrangement of the modules is essentially identical to the previous exemplary embodiment, so that the components with the same function have been identified by identical reference numerals and reference can be made directly to the preceding description. Therefore, only the differences from the aforementioned exemplary embodiment are explained below.
  • a climatic chamber 19 is formed below the nozzle device 5.
  • the ejector device 10 with the fiber inlet 12 and the intake duct 17 is arranged within the climatic chamber 19.
  • the ejector 10 is thereby formed from two opposing shaped sheets 11.1 and 11.2.
  • Each of the shaped plates 11.1 and 11.2 has a guide leg 20.1 and 20.2 and a cross leg 16.1 and 16.2.
  • the cross legs 16.1 and 16.2 form the respective intake duct 17 with the outlet side 6 of the nozzle device 5.
  • the guide legs 20.1 and 20.2 are arranged with increasing spacing from one another in the direction of thread travel, so that an enlarged guide cross section is established.
  • the guide legs 20.1 and 20.2 of the shaped plates 11.1 and 11.2 end outside the climatic chamber 19.
  • the climatic chamber 19 is connected to an air conditioner (not shown here) by means of which a condensed air is demanded in the climatic chamber 19.
  • the climate air within the climatic chamber 19 preferably has ambient pressure or slight positive pressure.
  • the additional air flow when the gas flow and the fibers enter the fiber inlet 12 of the ejector device 10 can thus advantageously suck in conditioned air.
  • the conditioning of the air can include heating, moisture content or quantity regulation. This allows additional parameters for the production of fine fibers.
  • the climate air makes it possible to obtain fibers with changed physical properties during formation and consolidation.
  • the method carried out with the exemplary embodiment according to FIGS. 1 and 2 is based on the bursting of the Irish extruded fiber strand. In principle, however, there is also the possibility of withdrawing the freshly extruded fiber strand directly from the spinneret by means of an introduced gas stream and dividing it into a plurality of individual fibers of finite length.
  • a structure of an exemplary embodiment of the device according to the invention for carrying out such a melt-blowing method can be seen from the arrangement shown in FIG. 3.
  • 3 shows a further exemplary embodiment of a device according to the invention in a detailed view immediately below the spinneret for producing the fibers in a cross-sectional view.
  • a nozzle device 5 and an ejector device 10 are arranged below the spinneret 1.
  • the spinneret 1 has a nozzle bore 2 which opens into a pressure chamber 4 immediately above a nozzle mouth 8 of the nozzle device 5.
  • the underside of the spinneret 1 and the top of the nozzle device 5 are funnel-shaped in order to obtain a gas flow accelerated in the fiber running direction.
  • an ejector device 10 Arranged below the nozzle device 5 is an ejector device 10, which has two opposing shaped bodies 24.1 and 24.2.
  • the shaped bodies 24.1 and 24.2 form a fiber inlet 12, which is arranged in an extension to the nozzle mouth 8 immediately below the nozzle device 5.
  • the upper sides of the shaped bodies 24.1 and 24.2 and the underside of the nozzle device 5 are arranged in a funnel shape with respect to one another, so that an additional air flow is drawn in in the fiber running direction.
  • the fiber inlet 12 has an increasing guide cross-section in the fiber running direction, so that a gradual expansion of the fiber flows occurs.
  • the freshly extruded fiber strand 3 is torn apart into a plurality of fibers of finite length by the highly dynamic gas flow.
  • the fibers 7 are guided and cooled by the additionally sucked-in air stream. It is then deposited into a fleece.
  • the aforementioned method and device examples are based on a passive cooling current generator which uses the effect of the fiber flow to generate an additional air flow.
  • the merging of the additional air flow with the gas flow is essentially carried out by the guide cross Cut of the fiber inlet 12 of the ejector 10 influenced.
  • 4 to 8 show some exemplary embodiments of possible forms of the guide cross sections. 4 shows a fiber inlet with a constant guide cross section. As a result, possible turbulence is shifted directly on the outlet side of the ejector device 10. A substantially constant velocities of the fiber flow are achieved within the guide cross section.
  • FIG. 5 shows a guide cross section with increasing size. In this way, an expansion of the fiber flow progressing in the direction of fiber travel is achieved, which also leads to a spreading of the fibers.
  • a tear-off edge is deliberately formed on the outlet side, which leads to strong turbulence.
  • Such shapes could, for example, advantageously influence the placement of the fibers in such a way that the fibers hit the nonwoven covers with the greatest possible width. This can influence the fleece density.
  • the shaped sheets or shaped bodies were arranged symmetrically to one another.
  • a pressure chamber 4 and a nozzle device 5 are arranged below a spinneret 1.
  • the nozzle device 5 has a nozzle orifice 8 which lies in a vertical plane with the nozzle bores 2 of the spinneret 1.
  • a cooling flow generator acting as an injector device 21 directly borders on the outlet side 6 of the nozzle device 5.
  • the injector device 21 has a fiber guide channel 22 which is formed in a vertical extension to the nozzle mouth 8.
  • the fiber guide channel 22 has a narrowest guide cross section in a region, a blowing channel 23, which connects the fiber guide channel to a blowing chamber 24.
  • the lower end of the fiber guide channel 22 protrudes outside the blowing chamber 24 and is widened in a funnel shape.
  • the blowing channel 23 is formed on both sides of the fiber guide channel 22.
  • the blow chamber 24 is connected to a pressure source, not shown here, through which a compressed air is preferably introduced into the blow chamber 24.
  • the additional air flow is actively generated after the fiber strand 3 has burst.
  • the fiber strand 3 is first drawn off and almost destroyed by a gas flow flowing from the pressure chamber 4 through the nozzle mouth 8 of the nozzle device 5.
  • the fiber strand 3 runs directly into the guide channel 22 of the injector device 21.
  • the inlet area of the fiber guide channel 22 is funnel-shaped, the fiber strand 3 being defibrated into the fibers 7 in the inlet area.
  • an additional air stream is blown into the fiber guide channel 22 via the blow chamber 24 through the blow channel 23. This allows both the fiber flow and the cooling of the fibers to be intensified.
  • a fiber flow is achieved, which preferably leads to compaction of the deposited fleece on a fleece tray.
  • the exemplary embodiments of the device according to the invention shown in FIGS. 1 to 9 are usually used for melt spinning a large number of fiber strands.
  • the fiber strands are divided on each individual fiber strand as described above.
  • the additional air flow proposed by the method according to the invention is particularly suitable for treating a large number of chamfers uniformly in their formation, cooling and guidance.
  • polymer melts of all common polymers such as polyester, polyamide, polypropylene or polyethylene can be melt spun into fibers.

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

Abstract

La présente invention concerne un procédé et un dispositif de filage à chaud de fines fibres synthétiques pour produire des non tissés. Une masse de fusion polymère est extrudée par l'ouverture d'une buse à filer, pour donner un boyau de fibres. Le boyau de fibres fraîchement extrudé alimente un système de buses, de façon commune avec un courant de gaz, de sorte que le boyau de fibres est subdivisé sur le côté extérieur du système de buses, en plusieurs fibres fines. Les fibres, après leur refroidissement, sont déposées pour former un non-tissé. Pour permettre une constitution régulière des fibres après subdivision du boyau de fibres, les fibres sont selon l'invention refroidies et guidées par un courant d'air supplémentaire qui arrive par le dessous du système de buses. A cet effet, le dispositif comprend sur le côté sortie du système de buses, un dispositif de production de courant d'air frais.
PCT/EP2005/002612 2004-03-26 2005-03-11 Procede et dispositif de filage a chaud de fines fibres synthetiques WO2005093138A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004014882 2004-03-26
DE102004014882.1 2004-03-26

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Publication Number Publication Date
WO2005093138A1 true WO2005093138A1 (fr) 2005-10-06

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1920825A1 (fr) * 2006-11-10 2008-05-14 Ricoh Company, Ltd. Appareil et procédé de fabrication de résine à particules
WO2008092749A1 (fr) * 2007-01-31 2008-08-07 Oerlikon Textile Gmbh & Co. Kg Procédé et appareil pour étirer et déposer une pluralité de fibres pour former un non-tissé
WO2008087193A3 (fr) * 2007-01-19 2009-01-29 Oerlikon Textile Gmbh & Co Kg Appareil et procédé pour déposer des fibres synthétiques et former une bande non tissée
CN102787378A (zh) * 2012-09-03 2012-11-21 江苏恒力化纤股份有限公司 一种高强低伸型涤纶工业丝的制造方法
EP2650419A1 (fr) * 2010-12-06 2013-10-16 Mitsui Chemicals, Inc. Etoffe non tissée obtenue par fusion-soufflage, procédé pour sa production et dispositif pour le réaliser
US20200291545A1 (en) * 2017-10-06 2020-09-17 Lenzing Aktiengesellschaft Device for the Extrusion of Filaments and for the Production of Spunbonded Fabrics
CN112439267A (zh) * 2019-08-28 2021-03-05 艾格尔集团股份公司 形成烟雾过滤器的设备和方法
CN113584722A (zh) * 2020-04-17 2021-11-02 福建恒安集团有限公司 一种熔喷无纺布的成型工艺
CN115434016A (zh) * 2022-09-26 2022-12-06 杭州东南纺织有限公司 一种阻燃聚酯纤维poy丝制备工艺
CN115537945A (zh) * 2022-10-08 2022-12-30 南通大学 一种可细化聚合物纤维的熔喷纺丝模头

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US4961695A (en) * 1988-03-07 1990-10-09 Grunzweig & Hartman Ag Facility for generating fibers, in particular mineral fibers, from a molten mass
US5523033A (en) * 1993-12-08 1996-06-04 The Board Of Regents Of The University Of Oklahoma Polymer processing using pulsating fluidic flow
US5993943A (en) * 1987-12-21 1999-11-30 3M Innovative Properties Company Oriented melt-blown fibers, processes for making such fibers and webs made from such fibers
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US6013223A (en) * 1998-05-28 2000-01-11 Biax-Fiberfilm Corporation Process and apparatus for producing non-woven webs of strong filaments
US20010026815A1 (en) * 1999-05-27 2001-10-04 Mitsuru Suetomi Used in manufacturing nonwoven fabric
US20040009251A1 (en) * 2002-02-28 2004-01-15 Reifenhauser Gmbh & Co. Maschinenfabrik Apparatus for producing melt-blown webs
WO2004101869A1 (fr) * 2003-05-16 2004-11-25 Corovin Gmbh Procede et appareil de production de non-tisses de type spunbonded constitues de filaments

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US5993943A (en) * 1987-12-21 1999-11-30 3M Innovative Properties Company Oriented melt-blown fibers, processes for making such fibers and webs made from such fibers
US4961695A (en) * 1988-03-07 1990-10-09 Grunzweig & Hartman Ag Facility for generating fibers, in particular mineral fibers, from a molten mass
US5523033A (en) * 1993-12-08 1996-06-04 The Board Of Regents Of The University Of Oklahoma Polymer processing using pulsating fluidic flow
US6001303A (en) * 1997-12-19 1999-12-14 Kimberly-Clark Worldwide, Inc. Process of making fibers
US6013223A (en) * 1998-05-28 2000-01-11 Biax-Fiberfilm Corporation Process and apparatus for producing non-woven webs of strong filaments
US20010026815A1 (en) * 1999-05-27 2001-10-04 Mitsuru Suetomi Used in manufacturing nonwoven fabric
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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7879268B2 (en) 2006-11-10 2011-02-01 Ricoh Company Limited Apparatus and method for manufacturing particulate resin
EP1920825A1 (fr) * 2006-11-10 2008-05-14 Ricoh Company, Ltd. Appareil et procédé de fabrication de résine à particules
WO2008087193A3 (fr) * 2007-01-19 2009-01-29 Oerlikon Textile Gmbh & Co Kg Appareil et procédé pour déposer des fibres synthétiques et former une bande non tissée
WO2008092749A1 (fr) * 2007-01-31 2008-08-07 Oerlikon Textile Gmbh & Co. Kg Procédé et appareil pour étirer et déposer une pluralité de fibres pour former un non-tissé
US9404207B2 (en) 2010-12-06 2016-08-02 Mitsui Chemicals, Inc. Melt-blown nonwoven fabric, and production process and apparatus for the same
EP2650419A1 (fr) * 2010-12-06 2013-10-16 Mitsui Chemicals, Inc. Etoffe non tissée obtenue par fusion-soufflage, procédé pour sa production et dispositif pour le réaliser
EP2650419A4 (fr) * 2010-12-06 2015-01-21 Mitsui Chemicals Inc Etoffe non tissée obtenue par fusion-soufflage, procédé pour sa production et dispositif pour le réaliser
CN105002660A (zh) * 2010-12-06 2015-10-28 三井化学株式会社 熔喷非织造布的制造方法及熔喷非织造布的制造装置
US9200392B2 (en) 2010-12-06 2015-12-01 Mitsui Chemicals, Inc. Melt-blown nonwoven fabric, and production process and apparatus for the same
CN102787378A (zh) * 2012-09-03 2012-11-21 江苏恒力化纤股份有限公司 一种高强低伸型涤纶工业丝的制造方法
US20200291545A1 (en) * 2017-10-06 2020-09-17 Lenzing Aktiengesellschaft Device for the Extrusion of Filaments and for the Production of Spunbonded Fabrics
CN112439267A (zh) * 2019-08-28 2021-03-05 艾格尔集团股份公司 形成烟雾过滤器的设备和方法
CN113584722A (zh) * 2020-04-17 2021-11-02 福建恒安集团有限公司 一种熔喷无纺布的成型工艺
CN113584722B (zh) * 2020-04-17 2022-08-05 福建恒安集团有限公司 一种熔喷无纺布的成型工艺
CN115434016A (zh) * 2022-09-26 2022-12-06 杭州东南纺织有限公司 一种阻燃聚酯纤维poy丝制备工艺
CN115537945A (zh) * 2022-10-08 2022-12-30 南通大学 一种可细化聚合物纤维的熔喷纺丝模头

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