EP3199672B1 - Vorrichtung und verfahren zur herstellung von spinnvliesen aus endlosfilamenten - Google Patents

Vorrichtung und verfahren zur herstellung von spinnvliesen aus endlosfilamenten Download PDF

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Publication number
EP3199672B1
EP3199672B1 EP16152916.9A EP16152916A EP3199672B1 EP 3199672 B1 EP3199672 B1 EP 3199672B1 EP 16152916 A EP16152916 A EP 16152916A EP 3199672 B1 EP3199672 B1 EP 3199672B1
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EP
European Patent Office
Prior art keywords
suction
suction opening
gap
spinning field
opening region
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.)
Active
Application number
EP16152916.9A
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German (de)
English (en)
French (fr)
Other versions
EP3199672A1 (de
Inventor
Michael Nitschke
Martin Swiatek
Martin Neuenhofer
Hans-Georg Geus
Detlef Frey
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.)
Reifenhaeuser GmbH and Co KG Maschinenenfabrik
Original Assignee
Reifenhaeuser GmbH and Co KG Maschinenenfabrik
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
Priority to EP16152916.9A priority Critical patent/EP3199672B1/de
Application filed by Reifenhaeuser GmbH and Co KG Maschinenenfabrik filed Critical Reifenhaeuser GmbH and Co KG Maschinenenfabrik
Priority to PL16152916T priority patent/PL3199672T3/pl
Priority to SI201630374T priority patent/SI3199672T1/sl
Priority to ES16152916T priority patent/ES2744919T3/es
Priority to DK16152916.9T priority patent/DK3199672T3/da
Priority to MX2018009032A priority patent/MX370765B/es
Priority to TNP/2018/000235A priority patent/TN2018000235A1/en
Priority to UAA201808922A priority patent/UA119627C2/uk
Priority to PE2018001343A priority patent/PE20181380A1/es
Priority to RU2018129602A priority patent/RU2694912C1/ru
Priority to AU2016389168A priority patent/AU2016389168B2/en
Priority to KR1020187024515A priority patent/KR102110067B1/ko
Priority to BR112018014549-1A priority patent/BR112018014549B1/pt
Priority to JP2018539091A priority patent/JP6703122B2/ja
Priority to MA42886A priority patent/MA42886B1/fr
Priority to CA3011368A priority patent/CA3011368C/en
Priority to MYPI2018702571A priority patent/MY194519A/en
Priority to PCT/EP2016/081172 priority patent/WO2017129313A1/de
Priority to ARP170100059A priority patent/AR107332A1/es
Priority to US15/414,798 priority patent/US10465319B2/en
Priority to CN201710055384.0A priority patent/CN107012515B/zh
Publication of EP3199672A1 publication Critical patent/EP3199672A1/de
Priority to ZA2018/04912A priority patent/ZA201804912B/en
Priority to IL260725A priority patent/IL260725B/en
Priority to CL2018001992A priority patent/CL2018001992A1/es
Priority to SA518392077A priority patent/SA518392077B1/ar
Priority to CONC2018/0007783A priority patent/CO2018007783A2/es
Application granted granted Critical
Publication of EP3199672B1 publication Critical patent/EP3199672B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D01D13/00—Complete machines for producing artificial threads
    • D01D13/02—Elements of machines in combination
    • 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
    • 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
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F13/00—Recovery of starting material, waste material or solvents during the manufacture of artificial filaments or the like
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion

Definitions

  • the invention relates to a device for producing spunbonded nonwovens from continuous filaments, in particular from continuous filaments of thermoplastic material, wherein a Spinnerette for spinning the filaments and a cooling device for cooling the filaments is provided and wherein between Spinnerette and cooling device at least one Monomerabsaugungsvortechnisch for suction of the spinning process Gas is arranged.
  • the invention further relates to a process for the production of spunbonded nonwovens from continuous filaments.
  • - Endless filaments are known to differ because of their quasi-endless length of staple fibers, which have much smaller lengths, for example, 10 to 60 mm.
  • the Monomerabsaugungsvorraum air or gas is sucked from the Filament avoirsraum directly below the spinnerette. This ensures that the gases exiting in addition to the polymer filaments in the form of monomers, oligomers, decomposition products and the like from the filament formation space or from the device can be at least partially removed.
  • the spunbonded nonwovens are produced from continuous filaments of thermoplastic material.
  • a spinnerette for spinning the filaments and cooling means for cooling the filaments.
  • a monomer suction device is arranged between the spinnerette and the cooling device for the suction of gases generated during the spinning process.
  • the Monomerabsaugungsvorraum has two arranged in the machine direction one behind the other, each transverse to Machine direction extending and with respect to the spinning field opposite CD-suction opening areas. Each of the two opposing CD extraction port areas has two suction gaps.
  • US 2003/178741 A1 a similar device is known.
  • Devices of the type mentioned are basically known in practice in various embodiments.
  • the filaments are spun by means of a spinnerette, then cooled in a cooling device and then passed through a drawing unit and finally deposited on a tray to spunbonded.
  • Such a device is also referred to as a spunbond device.
  • Many of these known devices have the disadvantage that the filaments often can not be stored correctly to the spunbonded fabric. Filament deposition results in irregularities in the form of defects or defects in the spunbonded nonwoven. The homogeneity of the spunbonded nonwovens is more or less affected by these defects or disturbances.
  • One cause of the defects in the spunbonded fabric are so-called drops, which result from the tearing off of one or more filaments and the formation of melt accumulations.
  • the invention is based on the finding that such defects or defects in the spunbonded nonwovens occur in particular at higher filament speeds and / or at higher throughputs from 120 kg / h / m and above all from 150 kg / h / m. Such irregularities in the spunbonded webs can be observed above all even with larger spinning field depths.
  • the technical problem underlying the invention is to provide a device of the type mentioned above, with which spunbonded webs can be produced with a high degree of homogeneity without appreciable defects, even at high filament speeds and / or high throughputs as well as wide or deep spinning fields. Furthermore, the invention is the technical problem of specifying a corresponding method for producing such spunbonded nonwovens.
  • the invention teaches an apparatus for producing spunbonded nonwovens from continuous filaments, in particular from continuous filaments of thermoplastic material, wherein a spinnerette for spinning the filaments and a cooling device for cooling the Filaments is provided, wherein in the region of the spinnerette, preferably between the spinnerette and the cooling device, at least one monomer suction device is arranged for the suction of gases generated during the spinning process, wherein the Monomerabsaugungsvorraum has at least two in the machine direction (MD) arranged one behind the other, transversely - preferably perpendicular - to the machine direction (CD) extending and with respect to the spinning field opposite CD-suction port areas and wherein the two CD-suction port areas and / or at least two opposite CD-extraction opening portions of the CD extraction opening areas are set up with the proviso that over one of the two CD extraction opening areas and / or CD extraction opening portions, a higher volume of gases is sucked over than the other opposite CD exhaust port area and / or
  • the device according to the invention is a spunbond device for producing spunbond nonwovens, wherein the device comprises a spinnerette, a monomer suction device, a cooling device, an adjoining stretching unit for drawing the filaments and a storage device for filing the filaments to spunbond nonwoven web has.
  • Machine direction means in the context of the invention, in particular the conveying direction of the deposited spunbonded web.
  • the spunbonded web is carried away with a conveyor belt or endless conveyor belt.
  • the CD direction means, in particular, the direction preferably perpendicular to the direction perpendicular to the conveying direction of the spunbonded web or to the MD direction.
  • the CD exhaust port portions and the CD exhaust port portions are suitably provided in two opposite side walls extending transversely to the machine direction, which side walls bound the filament forming space below the spinnerette.
  • a CD suction opening area and / or a CD suction opening partial area can be formed either by only one suction opening or one suction gap or by a plurality of suction openings or suction gaps.
  • a CD extraction opening region and / or a CD extraction partial region may also each be formed by a plurality of extraction bores.
  • the volume flow drawn off in the monomer suction device or the extracted volume flow enters / enters at least one collection chamber and preferably at least one collection tube connected to the collection chamber.
  • at least one collection chamber for each of two opposite relative to the spinning field CD extraction port areas at least one collection chamber, and preferably at least one to the or each collection chamber connected collecting pipe for receiving the extracted gas provided. It can also be present for each of these pages several collection chambers or multiple manifolds.
  • At least one suction line preferably in each case a plurality of suction lines for the suction of the gas, is connected to a collecting chamber and it is recommended that the at least one suction line connect the suction lines to the collecting chamber with a collecting tube.
  • the volume flow can be adjusted by at least one shut-off element, for example by a gate valve with linear guide for setting the open cross section.
  • the setting or throttling takes place within the scope of the invention, with the proviso that a higher volume flow can be extracted via the one of the CD suction opening regions opposite the spinning field than via the other CD suction opening region.
  • the monomer suction device has suction opening areas and preferably has at least two machine direction (MD) arranged one behind the other, each transverse - preferably perpendicular - to the machine direction (CD) extending and with respect to the spinning field opposite CD-suction opening areas , And that the opening area of the suction opening areas - in particular the CD-suction opening areas - over 11,000 mm 2 / m, in particular about 12,000 mm 2 / m spinning field - measured transversely to the machine direction or CD direction - is or is adjustable , Expediently more than 20,000 mm 2 / m spinning field, preferably over 30,000 mm 2 / m spinning field, very preferably over 40,000 mm 2 / m spinning field and more preferably over 50,000 mm 2 / m spinning field is or is adjustable.
  • MD machine direction
  • CD machine direction
  • the Opening area or the adjustable opening area of the suction opening areas - in particular the CD-suction opening areas up to 100,000 mm 2 / m spinning field, preferably up to 90,000 mm 2 / m spinning field and more preferably up to 85,000 mm 2 / m spinning field.
  • the respective opening areas of the CD suction opening areas are designed or adjustable with the proviso that a higher volume flow can be sucked through one of the two opposite CD suction opening areas than through the other CD suction opening area.
  • the opening area of a CD-suction opening area is larger or can be set to be larger than the opening area of a second CD-suction opening area opposite to the spinning field.
  • the opening area of a machine direction (MD) rear CD exhaust opening area may be larger or more adjustable than the opening area of a machine front CD exhaust opening area, or vice versa.
  • the opening area of the opposing CD-suction opening areas can also be set to different sizes, so that initially a larger volume flow can be sucked off via the one CD-suction opening area and then over the other CD-suction opening area.
  • a proven embodiment of the monomer extraction device according to the invention is characterized in that a CD extraction opening region, preferably two CD extraction opening regions opposite the spinning field, extend over the entire width of the spinning field or essentially over the entire width of the spinning field. It is recommended that in each case over the entire width or essentially different volume flows can be sucked over the entire width of the two opposite CD-suction opening areas.
  • the extraction of different volume flows also means that no volume flow or substantially no volume flow of gas is sucked off via a CD suction opening region and that a volume flow of gas is sucked off only in the CD suction opening region opposite the spinning field becomes.
  • different extraction of volume flows here also means that a volume flow of gas is supplied via a CD extraction opening region and gas is drawn off in the other CD extraction opening region opposite the spinning field.
  • a proven embodiment of the monomer extraction device according to the invention is characterized in that in a CD extraction opening area across its entire length transverse to the machine direction, a larger volume flow is deducted or withdrawn than in the opposite with respect to the spinning field CD-suction opening area.
  • a larger volume flow is deducted or withdrawn than in the opposite with respect to the spinning field CD-suction opening area.
  • a smaller volume flow can be sucked off by at least one further CD-suction opening partial area on the first side of the spinning field than by an opposite or directly opposite CD-suction opening partial area on the second side of the spinning field.
  • the provided on one side of the spinning field CD extraction port portions may be arranged with different gas flow direction directly adjacent to each other transversely to the machine direction or at a distance from each other.
  • a plurality of pairs of opposing CD exhaust port portions may be distributed across the width of the spinneret, so conveniently for each pair of CD exhaust port portions on opposite sides of the spinner, the proviso that through a CD Exhaust port portion a larger volume flow of gas is sucked than by the other immediately opposite CD exhaust port portion.
  • the ratio of the volume flow V 1 extracted by a CD suction opening area to the volume flow V 2 drawn off by the other CD suction opening area opposite to the spinning field is 6: 1 to 1.1: 1, preferably 5.5: 1 to 1.3: 1, preferably 5.5: 1 to 1.5: 1 and more preferably 5: 1 to 1.75: 1.
  • the aforementioned volume flow conditions can also be realized for opposite partial areas of the CD extraction opening areas (opposite CD suction opening partial areas).
  • a plurality of pairs of CD exhaust opening portions are then evenly distributed in the CD direction.
  • a recommended embodiment of the invention is characterized in that a CD suction opening region is formed as at least one - in a preferred embodiment as a CD suction gap extending in the CD direction.
  • the CD suction gap is in a plurality of CD suction gap sections divided.
  • CD-Absaugungsspaltabitese are preferably arranged side by side at the same vertical height.
  • the length of these CD-Absaugungsspaltabitese in the CD direction is suitably each 10 to 70 cm, preferably 10 to 60 cm and preferably 15 to 40 cm.
  • the juxtaposed CD-Absaugungsspaltabitese complement each other in the CD direction extending CD Absaugungsspalt.
  • two or more CD suction gaps or CD suction gap sections can also be arranged one above the other in the vertical direction on each side of the spinning field.
  • the opening cross-sectional area of the at least one CD-suction gap arranged on one side of the spinning field is larger than the opening cross-sectional area of the at least one CD-suction gap arranged on the other side of the spinning field ,
  • the opening cross-sectional area of the at least one or in the machine direction rear CD suction gap (outlet side of the spunbonded web) larger than the opening cross-sectional area of the one or at least one seen in the machine direction CD front suction gap (inlet side of the spunbonded web) or vice versa.
  • the gap height h or the vertical gap height h of the two opposite CD extraction gaps is different, for example, the gap height h A of the rear CD suction gap in the machine direction (outlet side of the spunbonded web) is greater than the gap height h E of in Machine direction of the front CD extraction gap (inlet side of the spunbonded nonwoven web).
  • the Gap height h of a CD-suction gap more than twice as large, preferably more than three times as large as the gap height h of the other CD-suction gap.
  • the CD suction gaps are recommended to have a gap height or a vertical gap height h of 2 to 50 mm, preferably 4 to 40 mm and preferably 4 to 35 mm.
  • the gap height h of the higher CD suction gap is 20 to 50 mm, advantageously 25 to 45 mm, and the gap height h of the lower CD suction gap is preferably 2 to 12 mm, in particular 2 to 10 mm.
  • the two opposing CD-Absaugungsspalte but also have the same height and the differently extracted at the two CD-Absaugungsspalten volume flow is then by settings - especially cross-sectional settings, in particular at the at least one collecting chamber or at the collecting chambers and / or at the Suction line or on the suction lines - realized.
  • the suction of the higher volume flow continuously changes from one side of the monomer suction device to the other side of the monomer suction device or continuously between the one CD suction gap and the other CD suction gap.
  • the different volume flows extracted in the context of the monomer extraction according to the invention by at least two CD extraction opening regions opposite to the spinning field can be determined by the geometrical parameters of the CD extraction opening regions or CD extraction opening regions and in particular the CD suction gap or CD suction gap segments be set. Alternatively or in addition, these different volume flows can also be adjusted by the configuration or design of each collection chamber / collecting chambers associated with each CD suction opening area and / or suction line / suction lines and / or collecting pipe / collecting pipes. As already explained above, a CD extraction opening area is expediently assigned at least one or a collection chamber to which / at least one suction line, expediently a plurality of suction lines is / are connected.
  • the volume flow drawn off at the respective CD extraction opening area can be adjusted. It is recommended that two to twelve suction lines per m spinning field, preferably four to ten suction lines per m spinning field are connected to a, a CD-extraction opening area associated collection chamber, is sucked through the gas from the collection chamber. It is within the scope of the invention that the device according to the invention has at least two collecting chambers and preferably in each case one collecting tube connected to each collecting chamber.
  • a particularly preferred embodiment of the monomer suction device according to the invention is characterized in that the monomer suction device has at least two MD suction opening regions extending in the machine direction (MD) and opposite the spinning field.
  • the MD suction opening regions are provided in the area of the spinnerette and preferably in the end walls which delimit the filament-forming space below the spinnerette and which extend in the MD direction. It is within the scope of the invention that the end walls and thus also the MD suction opening areas are shorter or significantly shorter than those in the CD direction extending side walls of the filament forming space and thus also as the CD suction port areas.
  • the MD exhaust port areas are conveniently located transversely, preferably perpendicular to the CD exhaust port areas.
  • an MD suction opening region is designed as at least one or MD extracting gap extending in the MD direction.
  • such an MD suction gap is subdivided into a plurality of MD suction gap sections, in particular into two to five MD suction gap sections, preferably into two to three MD suction gap sections.
  • the MD suction gap sections are preferably arranged one behind the other in the MD direction and are expediently at the same vertical height or at substantially the same vertical height.
  • the length of the MD suction gap sections is preferably in each case 10 to 70 cm, preferably 10 to 60 cm, particularly preferably 15 to 40 cm and in particular 10 to 20 cm. The length is measured in the MD direction.
  • the vertical gap height h of an MD suction gap or MD suction gap section is recommended to be 2 to 50 mm, preferably 25 to 45 mm and very preferably 2 to 12 mm.
  • the suction through the MD suction opening areas can be regulated separately or independently of the suction through the CD suction opening areas.
  • the MD suction port areas are connected to the collection ports of the CD exhaust port areas.
  • one MD-suction opening area can be connected to at least one collecting chamber or to at least one collecting tube of a CD-suction opening area be connected. Then expediently in each case a common suction through a CD-suction opening area and an associated MD-suction opening area.
  • both the opposing CD suction gaps and the opposing MD suction gaps are subdivided into CD-suction gap sections and MD suction gap sections arranged side by side, expediently at the same or essentially the same vertical height.
  • a CD suction opening area or a CD suction gap is longer or substantially longer than an MD suction opening area or MD suction gap.
  • a CD suction opening area or CD suction gap is at least twice as long, preferably at least 2.5 times as long, more preferably at least 3 times as long and in particular at least 4 times as long as an MD suction opening area or MD Absaugungsspalt.
  • the abovementioned lengths are measured transversely or preferably perpendicular to the machine direction (CD direction) and in the machine direction (MD direction).
  • the total volume of gas extracted by the CD suction opening areas and preferably the MD suction opening areas is, according to a preferred embodiment of the invention, 35 to 1200 m 3 / h per m spinning field, preferably 40 to 1100 m 3 / h per m spinning field and preferably 50 to 1000 m 3 / h per m spinning field.
  • a higher volume flow is extracted via a CD suction opening area than via the CD suction opening area opposite the spinning field.
  • contaminated surfaces in the region of at least one suction opening region or CD extraction opening region are covered by contaminants or condensate-receiving, in particular absorbing, adsorbing and / or insulating covering materials or covering webs.
  • the cover materials or cover sheets are fixed in a suitable manner to the vulnerable surfaces. To cover, for example, meltblown webs or the like can serve.
  • the surfaces subject to contamination are tempered, in particular heated, to avoid contamination or condensation.
  • the invention is based on the finding that the technical problem according to the invention can be solved particularly effectively if, on the one hand, the The above-explained features of Monomerabsaugung be realized and if on the other hand certain conditions are observed in the design of the spinnerette or with respect to the capillaries of the spinnerette.
  • the capillary of the spinnerette means the channels through which the plastic melt is guided for the filaments spun with the spinnerette.
  • the spinnerette has a capillary density of 1 to 6 capillaries / cm 2 , preferably 2 to 5 capillaries / cm 2 , preferably 2 to 4.5 capillaries / cm 2 , especially 2 to 4 capillaries / cm 2, and more preferably from 2.2 to 3.2 capillaries / cm 2 . It is recommended that the capillary density of the spinnerette in the central region of the spinnerette is lower than in the outer regions of the spinnerette and that preferably the capillary density in the middle region of the spinnerette is 0 to 1 capillaries / cm 2 .
  • the inner diameter of the capillaries is recommended to be 0.2 to 0.9 mm, in particular 0.3 to 0.8 mm.
  • the spinning field depth is expediently 120 to 400 mm, preferably 150 to 350 mm, very preferably 170 to 300 mm and particularly preferably 185 to 270 mm.
  • Spinning field depth means in particular the extent of the spun filament bundle in the machine direction (MD).
  • MD machine direction
  • the spinning field depth is 195 to 260 mm.
  • a particularly recommended embodiment of the device according to the invention is characterized in that in the filament flow direction behind the Monomerabsaugungsvoriques a cooling device and an adjoining drawing unit is provided. It is recommended that the drawing unit has an intermediate channel converging in the filament flow direction and a drawing channel connected thereto. - According to a particularly preferred embodiment of the invention, the intermediate channel at least two in the flow direction of the filaments in a row or with each other arranged converging channel sections. It is recommended that the first or upper channel section in the flow direction of the filaments have a shorter length than the second or lower channel section in the flow direction of the filaments.
  • the opening angle of the first or upper converging channel section of the intermediate channel is greater than the opening angle of the second or lower converging channel section of the intermediate channel. It is within the scope of the invention that the intermediate channel or the lower converging channel section of the intermediate channel as it transits into the Verstreckkanal or Unterziehkanal the stretching unit.
  • the intermediate channel or the lower channel portion of the intermediate channel and the Verstreckkanal or Unterziehkanal can basically have the same convergence.
  • At least one diffuser is provided in the filament flow direction behind the drawing unit and an adjoining storage device for depositing the filaments to the spunbonded nonwoven.
  • at least two diffusers in particular two diffusers, be provided in the filament flow direction behind the drawing unit, and it has proven useful to provide at least one ambient air inlet gap or one ambient air inlet gap for the entry of ambient air between the two diffusers.
  • a particularly recommended embodiment of the device according to the invention is characterized in that the unit of cooling device and drawing unit is designed as a closed system in which except the supply of cooling air in the cooling device no further air supply. The invention is based on the finding that the monomer extraction device according to the invention works optimally, especially in combination with such a closed system.
  • the invention further teaches a method for producing spunbonded non-wovens, in particular from continuous filaments of thermoplastic material, wherein the filaments are spun by means of a spinnerette, wherein emerging in the filament forming space in the spinnerette, in particular below the spinnerette during the spinning process gases be sucked off (Monomerabsaugung), wherein at least two in the machine direction (MD) successively arranged CD-suction port areas each having at least a volume flow of the resulting gases is sucked, wherein the suctioned through a CD exhaust port area volume flow is greater than that through the other CD-suction opening area extracted volume flow, the filaments are then cooled and stretched and finally stored on a storage device to the spunbonded, wherein the ratio of the volume flow V drawn off by one CD suction opening area to the volume flow V drawn off by the other CD suction opening area lying opposite to the spinning field is 6: 1 to 1.1: 1, preferably 5.5: 1 to 1, 3: 1, preferably 5.5: 1 to 1.5: 1
  • a particularly proven embodiment of the method according to the invention is characterized in that the filaments with a throughput of 100 to 350 kg / h / m, preferably with a throughput of 150 to 320 kg / h / m, preferably with a throughput of 180 to 300 kg / h / m and very preferably produced at a throughput of 200 to 300 kg / h / m.
  • the filaments are produced at a yarn speed of 2,000 to 4,200 m / min, preferably 2,200 to 4,000 m / min and in particular 2,300 to 3,900 m / min.
  • the invention is based on the finding that spun nonwovens can be produced with the device according to the invention and with the method according to the invention, which are distinguished by excellent homogeneity and virtually do not have defects or defects.
  • the device according to the invention With the device according to the invention, the above-described disadvantageous drops and hard pieces are largely avoided or reduced to a minimum. It is of particular advantage that a virtually flawless nonwoven storage is possible even with deep or wide spinning fields and at high throughputs and at high yarn speeds.
  • monomer extraction according to the invention further complicated measures for realizing the advantages according to the invention are generally not required. Above all, expensive additional device components for effectively solving the technical problem are not necessary.
  • the device according to the invention is characterized by simplicity and relatively low costs.
  • the figures show a device according to the invention for the production of spunbonded nonwovens 22 from endless filaments 23, wherein the filaments 23 consist in particular of thermoplastic material or consist substantially.
  • the filaments 23 are spun with a spinnerette 1 and are guided in a filament-forming space 29 below this spinnerette 1 by a monomer suction device 2 for the extraction of gases produced in the spinning process.
  • a cooling device 3 is provided for cooling the filaments.
  • this cooling device 3 an air supply cabin, which is divided in the embodiment in two cabin sections 13, 14.
  • process air or cooling air of different temperature can be supplied in the direction of the filament bundle.
  • To the cooling device 3 includes a drawing unit 15 in the flow direction of the filaments.
  • This stretching unit 15 has, preferably and in the exemplary embodiment, an intermediate channel 24 converging in the direction of flow of the filaments and an adjoining drawing channel 25.
  • Empfohlenenuit and in the embodiment the aggregate of the cooling device 3 and the drawing unit 15 is formed as a closed system. In this closed system, apart from the supply of the cooling air or process air in the cooling device 3, no further air supply takes place.
  • After preferred Embodiment of the invention includes in the flow direction of the filaments to the drawing unit 15 at least one diffuser 17, 18 at.
  • the filaments 23 are deposited on a depositing device 16 to the spunbonded nonwoven web following the diffusers 17, 18.
  • the storage device 16 is formed as an endlessly circulating Ablagesiebband.
  • the monomer extraction device 2 is arranged for the extraction of gases produced during the spinning process.
  • the monomer suction device 2 is arranged in the filament-forming space 29 below the spinnerette 1.
  • this Monomerabsaugungsvorraum 2 has two in the machine direction (MD) arranged one behind the other, each extending transversely to the machine direction and with respect to the spinning field 4 opposite CD-suction opening areas 5, 6.
  • the CD-suction opening areas 5, 6 are preferably and, in the exemplary embodiment, provided in opposite side walls 26 extending in the CD direction and delimiting the filament-forming space 29.
  • CD-suction opening areas 5, 6, which are opposite to the spinning field 4 are preferably and in the exemplary embodiment in each case designed as a CD-suction gap 7, 8 extending transversely or perpendicular to the machine direction.
  • the two CD-suction gaps 7, 8 are each in a plurality of CD-Absaugungsspaltabitesen 7 ', 8' divided.
  • These CD-suction gap sections 7 ', 8' are preferred and, in the exemplary embodiment, arranged next to each other and at the same vertical height.
  • the two opposing CD-Absaugungspalte 7, 8 are set with the proviso that one of the two CD-Absaugungsspalte 7, 8, a higher volume of gases is sucked as over the other opposite CD-Absaugungsspalt. 7 8.
  • a higher volume flow V A can be sucked off by the CD suctioning gap 8 seen in the machine direction (outlet side of the spunbonded web) than through the CD suction gap 7 in the machine direction (inlet side of the spunbonded web).
  • the ratio of the volume flows V A / V E in the exemplary embodiment may be 3: 1.
  • the vertical gap height h A of the seen in the machine direction rear CD suction gap 8 (outlet side) is greater than the vertical gap height h E of the machine seen in front CD suction gap 7 (inlet side).
  • a higher volume flow V E can also be sucked off by the CD suctioning gap 7 seen in the machine direction (inlet side of the spunbonded web) than through the rear CD suction gap 8 seen in the machine direction (outlet side of the spunbonded web).
  • the ratio of the volume flows and the vertical gap heights can then be provided in reverse, as it were, according to the above information.
  • the depth t of the spinning field 4 may be 200 mm in the exemplary embodiment and in the embodiment may be worked with a throughput of 230 kg / h / m and with a yarn speed of 3,300 m / min.
  • the monomer suction device 2 further comprises two in the machine direction (MD) extending and with respect to the spinning field 4 opposite MD-suction opening areas 9, 10.
  • the MD suction opening areas 9, 10 are preferably and in the exemplary embodiment in opposite, extending in the MD direction and the filament forming space bounding end walls 27 are provided.
  • the end walls 27 connect expediently to the side walls 26 extending in the CD direction.
  • the side walls 26 (in the CD direction) are recommended here and in the embodiment longer or significantly longer than the side walls 27 (in the MD direction).
  • the MD suction port regions 9, 10 are preferred and, in the exemplary embodiment, are formed as two MD MD-suction gaps 11, 12 extending in the MD direction.
  • the MD suction gaps 11, 12 are furthermore expediently and in the exemplary embodiment arranged at the same vertical height and also arranged at the same vertical height as the CD suction gaps 7, 8.
  • the MD suction gaps 11, 12 are also preferably and in the exemplary embodiment subdivided in each case into MD suction gap sections 11 ', 12' and indeed recommended, and in the exemplary embodiment in each case into two MD suction gap sections 11 ', 12'.
  • each CD-suction gap 7, 8 is assigned a collecting chamber 19, 20 for the gases sucked off via the CD-suction gaps 7, 8.
  • a plurality of suction lines 21 is connected to each collecting chamber 19, 20 for the extraction of gases in the context of Monomerabsaugung.
  • each collecting chamber 19, 20 is connected in each case to a collecting tube 32, 33.
  • at least one not shown suction unit - for example in the form of a pump - connected to the manifold 32, 33 for sucking the gases.
  • the suction 21 shut-off elements for example in the form of shut-off valves - and also with these shut-off of the opposite CD-Absaugungsspalte 7, 8 each extracted volume flow can be adjusted.
  • the gases extracted via these MD suction gaps 11, 12 are thus collected in the collecting pipes 32, 33.
  • guide plates 30, 31 are provided for the extracted gases in the collecting chambers 19, 20.
  • FIG. 2a A comparative analysis of the Fig. 2a and 2 B shows the gas flows in the monomer extraction according to the prior art ( Fig. 2a ) and the gas flows in the monomer extraction according to the invention ( Fig. 2b ).
  • the monomer extraction device 2 shown in the prior art is sucked in each case over two with respect to the spinning field 4 CD exhaust port areas 5, 6, the same volume flow of gases.
  • the filament bundle spun by means of spinnerette 1 is not acted upon by the gas flows in its center.
  • the invention is based on the recognition that it can come to the filaments in this embodiment for droplet formation and / or hard-piece formation, which - as described above - defects or defects in the deposited spunbonded web result.
  • a higher volume flow in the monomer extraction according to the invention - as in Fig. 2b recognizable - sucked on the one side of the spinning field 4, a higher volume flow.
  • a higher volume flow V A is aspirated than through the in FIG. 9 in the machine direction (MD) rear CD suction gap 8 (outlet side of the spunbonded web) Machine direction seen front CD-suction 7 (inlet side of the spunbonded web).
  • MD machine direction
  • FIG. 9 machine direction (MD) rear CD suction gap 8 (outlet side of the spunbonded web)
  • Machine direction seen front CD-suction 7 inlet side of the spunbonded web.
  • the invention is based on the finding that this effectively prevents the formation of droplets and hard pieces on the filaments and therefore also defects or defects in the deposited spunbonded nonwoven web can be avoided.
  • Fig. 2a and 2 B Incidentally, the introduction of cooling air in the cooling device 3 is also shown. The inflowing cooling air is symbolized here by the downward arrows.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Nonwoven Fabrics (AREA)
EP16152916.9A 2016-01-27 2016-01-27 Vorrichtung und verfahren zur herstellung von spinnvliesen aus endlosfilamenten Active EP3199672B1 (de)

Priority Applications (26)

Application Number Priority Date Filing Date Title
PL16152916T PL3199672T3 (pl) 2016-01-27 2016-01-27 Urządzenie i sposób do wytwarzania włóknin spunbond z włókien ciągłych
SI201630374T SI3199672T1 (sl) 2016-01-27 2016-01-27 Naprava in postopek za proizvodnjo tkanih polsti iz brezkončnih filamentov
ES16152916T ES2744919T3 (es) 2016-01-27 2016-01-27 Dispositivo y procedimiento para fabricar material tejido a partir de filamentos continuos
DK16152916.9T DK3199672T3 (da) 2016-01-27 2016-01-27 Indretning og fremgangsmåde til fremstilling af filterdug af endeløse filamenter
EP16152916.9A EP3199672B1 (de) 2016-01-27 2016-01-27 Vorrichtung und verfahren zur herstellung von spinnvliesen aus endlosfilamenten
CA3011368A CA3011368C (en) 2016-01-27 2016-12-15 Method and apparatus for making a spunbond nonwoven from endless filaments
UAA201808922A UA119627C2 (uk) 2016-01-27 2016-12-15 Пристрій і спосіб виготовлення фільєрного нетканого матеріалу з безперервних елементарних ниток
PE2018001343A PE20181380A1 (es) 2016-01-27 2016-12-15 Dispositivo y metodo para producir materiales textiles no tejidos hilados compuestos por filamentos continuos
RU2018129602A RU2694912C1 (ru) 2016-01-27 2016-12-15 Устройство и способ для изготовления фильерного нетканого материала из непрерывных элементарных нитей
AU2016389168A AU2016389168B2 (en) 2016-01-27 2016-12-15 Device and method for producing spun nonwoven fabrics made of continuous filaments
KR1020187024515A KR102110067B1 (ko) 2016-01-27 2016-12-15 무단 필라멘트로부터 스펀본드 부직포를 제조하기 위한 방법 및 장치
BR112018014549-1A BR112018014549B1 (pt) 2016-01-27 2016-12-15 Dispositivo e método para fabricação de tecidos não tecidos por fiação direta a partir de filamentos contínuos
JP2018539091A JP6703122B2 (ja) 2016-01-27 2016-12-15 無端フィラメントからスパンボンデッド不織布を製造するための装置および方法
MA42886A MA42886B1 (fr) 2016-01-27 2016-12-15 Dispositif et procédé pour produire des non-tissés à partir de filaments continus
MX2018009032A MX370765B (es) 2016-01-27 2016-12-15 Procedimiento y aparato para fabricar un material no tejido hilado por adhesión a partir de filamentos sin fin.
MYPI2018702571A MY194519A (en) 2016-01-27 2016-12-15 Method and apparatus for making a spunbond nonwoven from endless filaments
PCT/EP2016/081172 WO2017129313A1 (de) 2016-01-27 2016-12-15 Vorrichtung und verfahren zur herstellung von spinnvliesen aus endlosfilamenten
TNP/2018/000235A TN2018000235A1 (en) 2016-01-27 2016-12-15 Device and method for producing spun nonwoven fabrics made of continuous filaments
ARP170100059A AR107332A1 (es) 2016-01-27 2017-01-10 Dispositivo y procedimiento para la fabricación de telas no tejidas termosoldadas de filamentos sinfín
CN201710055384.0A CN107012515B (zh) 2016-01-27 2017-01-25 用于由连续长丝制造纺粘型非织造织物的设备和方法
US15/414,798 US10465319B2 (en) 2016-01-27 2017-01-25 Method and apparatus for making a spunbond nonwoven from endless filaments
ZA2018/04912A ZA201804912B (en) 2016-01-27 2018-07-20 Device and method for producing spun nonwoven fabrics made of continuous filaments
IL260725A IL260725B (en) 2016-01-27 2018-07-22 Device and method for producing non-woven woven fabrics from continuous thin fibers
CL2018001992A CL2018001992A1 (es) 2016-01-27 2018-07-23 Dispositivo y procedimiento para producir telas de hilado no tejido hechas de filamentos continuos.
SA518392077A SA518392077B1 (ar) 2016-01-27 2018-07-24 جهاز وطريقة لصنع مادة غير منسوجة من شعيرات متصلة
CONC2018/0007783A CO2018007783A2 (es) 2016-01-27 2018-07-27 Método y dispositivo para la fabricación de material no tejido ligado térmicamente de filamentos continuos

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16152916.9A EP3199672B1 (de) 2016-01-27 2016-01-27 Vorrichtung und verfahren zur herstellung von spinnvliesen aus endlosfilamenten

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EP3199672A1 EP3199672A1 (de) 2017-08-02
EP3199672B1 true EP3199672B1 (de) 2019-06-12

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US (1) US10465319B2 (ko)
EP (1) EP3199672B1 (ko)
JP (1) JP6703122B2 (ko)
KR (1) KR102110067B1 (ko)
CN (1) CN107012515B (ko)
AR (1) AR107332A1 (ko)
AU (1) AU2016389168B2 (ko)
BR (1) BR112018014549B1 (ko)
CA (1) CA3011368C (ko)
CL (1) CL2018001992A1 (ko)
CO (1) CO2018007783A2 (ko)
DK (1) DK3199672T3 (ko)
ES (1) ES2744919T3 (ko)
IL (1) IL260725B (ko)
MA (1) MA42886B1 (ko)
MX (1) MX370765B (ko)
MY (1) MY194519A (ko)
PE (1) PE20181380A1 (ko)
PL (1) PL3199672T3 (ko)
RU (1) RU2694912C1 (ko)
SA (1) SA518392077B1 (ko)
SI (1) SI3199672T1 (ko)
TN (1) TN2018000235A1 (ko)
UA (1) UA119627C2 (ko)
WO (1) WO2017129313A1 (ko)
ZA (1) ZA201804912B (ko)

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DK3575469T3 (da) * 2018-05-28 2020-10-19 Reifenhaeuser Masch Indretning og fremgangsmåde til fremstilling af filterduge ud fra endeløse filamenter
ES2831077T3 (es) * 2018-05-28 2021-06-07 Reifenhaeuser Masch Dispositivo y proceso para la fabricación de telas no tejidas hiladas a partir de filamentos continuos
SI3575470T1 (sl) * 2018-05-28 2021-01-29 Reifenhaeuser Gmbh & Co. Kg Maschinenfabrik Naprava za proizvodnjo tkanih polsti iz brezkončnih filamentov
KR102202203B1 (ko) * 2019-03-26 2021-01-12 송종복 섬유방사용 가스제거장치
JP7272195B2 (ja) * 2019-09-12 2023-05-12 王子ホールディングス株式会社 不織布の製造装置
CN115279957A (zh) * 2020-03-23 2022-11-01 东丽株式会社 无纺布的制造方法
CN111645220B (zh) * 2020-05-20 2022-02-18 湖南盛锦新材料有限公司 一种优质高产能熔喷料生产设备及工艺
DE102021000149A1 (de) 2021-01-15 2022-07-21 Oerlikon Textile Gmbh & Co. Kg Vorrichtung zum Schmelzspinnen und Abkühlen einer frisch extrudierten Filamentschar

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BR112018014549B1 (pt) 2022-03-29
CO2018007783A2 (es) 2018-08-10
CN107012515B (zh) 2021-08-20
DK3199672T3 (da) 2019-09-02
MA42886A1 (fr) 2019-07-31
AR107332A1 (es) 2018-04-18
JP6703122B2 (ja) 2020-06-03
CN107012515A (zh) 2017-08-04
UA119627C2 (uk) 2019-07-10
CA3011368C (en) 2021-07-06
AU2016389168A1 (en) 2018-07-26
MX370765B (es) 2019-12-18
KR20180102669A (ko) 2018-09-17
TN2018000235A1 (en) 2020-01-16
US10465319B2 (en) 2019-11-05
EP3199672A1 (de) 2017-08-02
KR102110067B1 (ko) 2020-05-12
ES2744919T3 (es) 2020-02-26
PL3199672T3 (pl) 2020-01-31
CL2018001992A1 (es) 2018-11-09
IL260725B (en) 2020-06-30
CA3011368A1 (en) 2017-08-03
BR112018014549A2 (pt) 2018-12-11
JP2019504218A (ja) 2019-02-14
MY194519A (en) 2022-11-30
SA518392077B1 (ar) 2021-11-23
WO2017129313A1 (de) 2017-08-03
AU2016389168B2 (en) 2022-02-17
SI3199672T1 (sl) 2019-10-30
US20170211217A1 (en) 2017-07-27
MA42886B1 (fr) 2020-02-28
MX2018009032A (es) 2019-01-10
ZA201804912B (en) 2019-09-25
RU2694912C1 (ru) 2019-07-18
PE20181380A1 (es) 2018-09-05

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