EP2841634A1 - Method and device for melt-blowing, forming and plaiting finite fibres to produce a fibrous nonwoven - Google Patents
Method and device for melt-blowing, forming and plaiting finite fibres to produce a fibrous nonwovenInfo
- Publication number
- EP2841634A1 EP2841634A1 EP13718534.4A EP13718534A EP2841634A1 EP 2841634 A1 EP2841634 A1 EP 2841634A1 EP 13718534 A EP13718534 A EP 13718534A EP 2841634 A1 EP2841634 A1 EP 2841634A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- forming
- drums
- blowing
- range
- gap
- 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.)
- Granted
Links
- 238000007664 blowing Methods 0.000 title claims abstract description 64
- 238000009740 moulding (composite fabrication) Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000009954 braiding Methods 0.000 title abstract 2
- 239000000835 fiber Substances 0.000 claims abstract description 87
- 239000002131 composite material Substances 0.000 claims abstract description 19
- 230000015572 biosynthetic process Effects 0.000 claims description 42
- 239000004745 nonwoven fabric Substances 0.000 claims description 29
- 238000000151 deposition Methods 0.000 claims description 23
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 238000005755 formation reaction Methods 0.000 description 39
- 230000008021 deposition Effects 0.000 description 9
- 238000003860 storage Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 229920002994 synthetic fiber Polymers 0.000 description 3
- 239000012209 synthetic fiber Substances 0.000 description 3
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 229920000412 polyarylene Polymers 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 239000004953 Aliphatic polyamide Substances 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920003231 aliphatic polyamide Polymers 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 150000001925 cycloalkenes Chemical class 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Classifications
-
- 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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/56—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
-
- 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
- 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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
Definitions
- the invention relates to a method for melt blowing, forming and depositing finite fibers to a nonwoven fabric according to the preamble of claim 1 and to an apparatus for melt blowing, forming and depositing finite fibers into a nonwoven fabric according to the preamble of claim 7.
- two different methods and devices are known in the art. Both methods differ both in the production of the fibers and in the deposition of the fibers to a nonwoven fabric.
- a meltblown process freshly extruded fibers are drawn off directly from the nozzle openings of the meltblowing die by a hot air stream by means of a hot air stream and fed as a fiber stream to a nonwoven fabric.
- Essentially finite fibers occur which have a relatively high elasticity. From this variant, the invention proceeds, as will be explained later.
- a spunbond process synthetic filaments are extruded by means of a spinneret and cooled. Subsequently, the filaments are fed by means of a supplied compressed air as a fiber stream to a nonwoven fabric.
- the nonwoven fabric consists essentially of endless filaments with higher strengths.
- a compressed air flow generated by the additional extraction device is used, which can be set individually to the respective process.
- the stream of hot air generated at the meltblowing die is used to pull out the extruded fibers and lay down the fibers.
- the filing of the fibers can be done directly on screen belts or sieve drums, are accumulated on the surfaces of the fiber stream and merged into a fiber composite.
- a Formierspaltes Such a method and such a device are known for example from DE 30 41 089 AI.
- two forming elements are arranged below the melt-blowing nozzle, which form a formation between them. The formation s gap is held centrally to the melt-blowing nozzle, so that the fiber flow is directed directly to the formation s gap.
- a disadvantage of such a deposition of the fibers is that a part of the air flow acts directly on the composite sections deposited in the formation s gap.
- the air flow is absorbed and removed through the screen surface. This can be realized in the deposition of the fiber stream in a formation s gap only on the laterally arranged forming elements. It is an object of the invention to develop a generic method and a generic device for melt blowing, forming and depositing finite fibers to form a nonwoven fabric such that also finest fibers in a formation s gap can be formed into a loose fiber composite.
- Another object of the invention is to improve the known method and the known apparatus for melt blowing, forming and depositing finite fibers to a nonwoven fabric such that highly voluminous nonwoven fabrics with small to large basis weights are flexible to produce.
- This object is achieved according to the invention in that the fibers are guided essentially vertically vertically from the melt-blowing nozzle to the formation gap via an adjustable blowing line, the setting range of the blowing line being in the range from 100 mm to 2,000 mm.
- the invention is characterized in that the hot air flow required to produce the fibers can be selected at the melt-blowing nozzle independently of the deposition of the fibers in the formation s gap.
- the blowing distance can be shortened or extended as required.
- the blowing line below the melt-blowing nozzle and the formation gap can advantageously be oriented vertically, so that a 3D structure of the fiber composite can be formed during deposition and formation.
- the fibers are blown for forming between two oppositely rotating drums with air-permeable drum walls, which form drums between the formation s gap and which each with a same peripheral speed be driven in the range of 0.1 m / min to 50 m / min.
- the peripheral speeds of the drums By adjusting the peripheral speeds of the drums, the surface densities of the fiber volume can be advantageously influenced.
- very loose fiber webs can be produced with an increased peripheral speed of the drum walls in the formation gap.
- the fiber composite after being formed by one of the drums, be deposited on the nonwoven fabric on a screen belt which discharges the fiber web tangentially to the drums.
- further treatments on the nonwoven fabric can be carried out in a short sequence.
- the thickness of the produced nonwoven fabric is determined essentially by a forming cross section of the forming nip.
- the adjustment of the formation gap is done in a simple manner such that a distance between the drums is adjusted symmetrically or asymmetrically between the drums in a range of 1 mm to 100 mm. In an asymmetric adjustment, the center axis of the formation gap no longer coincides with the center of the meltblowing die.
- the drums can have identical or different drum diameters with a diameter ratio in the range from 0.5 to 2.0. This can advantageously produce different surface structures on the nonwoven fabric.
- the drums have for this purpose a drum diameter which is in the range of 100 mm to 800 mm.
- the device according to the invention is to be improved such that one of the drums has an inner suction chamber with a negative pressure source is connected and which is shielded by the air-permeable drum wall to the environment.
- additional suction streams can be generated to assist in the generation and guidance of the fibrous web.
- the effect can be further supported by idem both drums each having a separate suction chamber, which are connected together to a vacuum source or separately with two vacuum sources.
- an angular position of the suction chamber on the circumference of the drum is adjustable.
- the position of the suction chamber can be freely selected relative to the inlet and outlet of the Formierspaltes.
- Fig. 1 shows schematically a cross-sectional view of a first embodiment of the device according to the invention for melt blowing, forming and depositing finite fibers to a nonwoven fabric
- Fig. 2 shows schematically a cross-sectional view of another embodiment of the device according to the invention for melt blowing, forming and depositing finite fibers
- FIG. 3 schematically shows a cross-sectional view of a further embodiment of the device according to the invention for melt blowing, forming and depositing finite fibers
- Fig. 4 shows schematically another embodiment of the device according to the invention for melt blowing, forming and depositing finite fibers
- a first embodiment of the device according to the invention is shown schematically in a cross-sectional view.
- the exemplary embodiment has a melt-blowing nozzle 1 and a forming element 2 held below the melt-blowing nozzle 1.
- the forming element 2 is formed by two oppositely driven drums 3, which form a formation s gap 6 between them.
- the formation s gap 6 extends between the drums 2.1 and 2.2 in the vertical direction, the drums 2.1 and 2.2 symmetrical to a longitudinal axis of the Schmelzblasdüse 1 are held.
- the drives of the drums 2.1 and 2.2 are not shown here in detail and can be performed by a group drive or individual drives.
- the drums 2.1 and 2.2 each have an air-permeable drum wall 3, which rotate in opposite directions in the fiber blowing direction with the peripheral speed predetermined by the drive of the drums 2.1 and 2.2.
- the melt-blowing nozzle 1 is arranged vertically adjustable above the drums 2.1 and 2.2 in a machine frame 13.
- the melt-blowing nozzle 1 comprises at least one row of nozzle channels 10 arranged in the center plane and interacting on one outlet side with air nozzles 11.1 and 11.2 for producing a fiber stream 7.
- the air nozzles 11.1 and 11.2 are each assigned two compressed air chambers 12.1 and 12.2, which are connected to compressed air source, not shown here.
- the nozzle channels on the melt-blowing nozzle 1 extend over a maximum length of seven meters.
- the drums 2.1 and 2.2 for forming the formation gap 6 also have a length in the range of seven meters. This is also referred to as a so-called working width, in which a nonwoven fabric is formed continuously from synthetic fibers.
- the meltblowing die 1 can be adjusted at different heights on the machine frame 13 so that a free blown line is formed between the meltblowing die 1 and the forming gap 6.
- the free blowing line is marked in FIG. 1 with the letter B and determined by the distance between the bottom of the melt-blowing nozzle 1 and the top of the drums 2.1 and 2.2.
- the blowing range can be adjusted in steps of 100 mm to 2,000 mm in steps or steplessly.
- the fiber streams arriving directly into the formation s nip can be influenced without additional means.
- the fiber fleece is discharged through the drum wall 3 of the drum 2.2 immediately after it leaves the formation s nip 6.
- a suction chamber 4 is formed on the outlet side of the drum 2.2, which is coupled to a vacuum source 5.
- a forced guidance of the fiber fleece is achieved so that the fiber fleece can be deflected and removed directly tangentially to the drum 2.2.
- the blown air forming the fiber stream can advantageously be taken up and removed via the suction chamber 4 and the vacuum source 5.
- a second suction chamber which would be connected to a vacuum source.
- Fig. 1 the possible formation of a second suction chamber is shown in a dashed line on the drum 2.1.
- the suction chamber 4 'of the drum 2.1 and the suction chamber 4 of the drum 2.2 each have an offset angular position on the drum 2.1 and 2.2 in order to influence the fiber deposition and the discharge of the blowing air.
- the angular position of the suction chamber 4 and 4 'could be made adjustable on the circumference of the drums 2.1 and 2.2. This achieves high flexibility for fiber deposition.
- the suction chambers 4 and 4 'could be arranged offset from each other to the forming gap 6 - as shown in Fig. 1 - or be set opposite to the drums 2.1 and 2.2. In the embodiment shown in Fig.
- the angular position of the suction chamber 4 on the circumference of the drum 2.2 in both clockwise and counterclockwise adjustable.
- the region at the inlet of the forming gap 6 or the region at the outlet of the forming gap 6 can be sucked.
- the drum 2.1 and 2.2 are carried out with the same size drum diameter.
- the drum diameter is entered with the code letters Di and D 2 .
- Di D 2 .
- the drum diameter of the drums 2.1 and 2.2 may in this case be in a range of 100 mm to 800 mm.
- the formed by the drums 2.1 and 2.2 formation s gap 6 has a forming cross-section, which is determined by the distance of the two drums 2.1 and 2.2.
- the distance between the drums is indicated in Fig. 1 with the capital letter F.
- the distance F between the drums 2.1 and 2.2 can be changed by moving one of the drums 2.1 or 2.2 or both drums 2.1 and 2.2.
- a one-sided displacement of the drums 2.1 or 2.2 can also be advantageous asymmetric adjustments with respect to the center axis of the melt-blowing 1.
- An asymmetrical configuration of the forming gap is shown for example in the embodiment of FIG. 3.
- the embodiment of FIG. 3 is identical to the embodiment of FIG. 1, so that only the differences are explained below.
- the drum 2.1 is formed with a smaller drum diameter.
- the drum diameter ⁇ the drum 2.1 is smaller than the drum diameter D 2 of the drum 2.2.
- a polymer melt is fed to the melt-blowing nozzle by means of a melt source, not shown here.
- the melt is passed under pressure through the nozzle channels 10 of the melt-blowing nozzle 1.
- a hot air flow is generated by the air nozzles 11.1 and 11.2, which together with the fibers emerging from the nozzle channels 10 blown into the blowing line.
- the generated fiber stream 7 is aligned vertically and meets at the end of the blowing line B on the formation s gap 6 and the drum walls 3 of the drums 2.1 and 2.2.
- the fibers are guided in the formation s gap 6 and formed into a fiber composite 8.
- the formation takes place essentially through the forming cross section of the forming gap 6, so that a finished nonwoven fabric 9 is already present on the outlet side of the drums 2.1 and 2.2.
- the fiber fleece 9 is taken from the drum 2.2 after leaving the formation s gap 6 and removed.
- the drum speeds of the drum 2.1 and 2.2 are set synchronously and can be in a range of peripheral speed of 0.1 to 50 m / min. be adjusted continuously.
- Fig. 2 another embodiment of the device according to the invention for melt blowing, forming and depositing synthetic fibers is shown schematically in a cross-sectional view. The embodiment is substantially identical to the embodiment of FIG. 1, so that only the differences will be explained at this point and otherwise reference is made to the above description.
- the melt-blowing nozzle 1 is identical to the exemplary embodiment according to FIG. 1.
- the drums 2.1 and 2.2 are arranged in a guide frame 15 as the forming element 2.
- the drums 2.1 and 2.2 can be continuously adjusted together in position on the guide frame 15 wherein on the one hand between the Schmelzblasdüse 1 and the formation s gap 6 formed Blas stretch B and on the other hand between a screen belt 4 and the drum 2.2 formed storage height A. change.
- the storage height is entered in Fig. 2 with the code letter A.
- the screen belt 14 below the drums 2.1 and 2.2 is guided over a plurality of guide rollers 16 such that the nonwoven fabric tangentially from drums 2.1 and 2.2 can be removed. Due to the adjustment between the drums 2.2 and the screen belt 14, it is additionally possible to form an additional forming zone for the nonwoven fabric.
- the drums 2.1 and 2.2 are driven in opposite directions together via an electric motor 19.
- the drive axles of the drive belts 2.1 and 2.2 are connected to one another via a belt 20 and pulleys 21.
- the direction of rotation of the drums 2.1 and 2.2 is rectified to the fiber stream 7, which arrives in the formation s gap 6. To that extent far can be about the peripheral speed of the drum 2.1 and 2.2 control the recording of the fibers in the formation s gap.
- FIG. 2 The function of the embodiment of the device according to the invention shown in FIG. 2 is identical to the aforementioned embodiment of FIG. 1. Only the filament of the nonwoven fabric is deposited on the screen belt arranged below the drums 2.1 and 2.2. In this case, larger storage heights A can be adjusted so that the fiber composite emerging from the forming gap 6 initially separates from the drums and is then deposited freely on the wire belt. For receiving and removing the blast air, one or both drums could be equipped with a suction chamber, as described in the embodiment of FIG. 1.
- the illustrated in Fig. 2 embodiment of the device according to the invention is also particularly suitable to produce composite nonwovens. Thus, from Fig.
- FIG. 4 shows a further embodiment of the device according to the invention, in which a plurality of melt-blowing nozzles are arranged side by side to merge several fiber webs to form a composite nonwoven.
- a total of three blowing stations 17.1, 17.2 and 17.3 are shown, each of which shows a melt-blowing nozzle.
- the fiber streams are taken up by a formation s gap and formed and then deposited on the screen belt 14.
- melt-blowing nozzles 1 of the blowing stations 17.1 and 17.2 set different blown sections.
- the second blowing station 17.2 is identical to the first blowing station 17.1, so that a second nonwoven fabric is deposited on the surface of the screen belt 14 which forms a composite with the first nonwoven fabric.
- the third blowing station 17.3 shows a melt-blowing nozzle 1, which is arranged at a short distance above the sieve belt 14.
- a suction device 18 is formed, which would serve toavi the fiber flow on the surface of the screen belt 16.
- the nonwoven fabric produced by the blowing station 17.3 is deposited directly on the surface of the screen belt 14 and forms a composite nonwoven with the already existing fiber webs.
- the inventive method and the device according to the invention are suitable for all spinnable materials such as polyolefins (eg polyethylene, polypropylene, polyoctene, polymerized cycloalkenes), aliphatic, cycloaliphatic and partially aromatic polyesters, aliphatic and aromatic polyamides, polyarylene sulfides and polyarylene oxides, polyoxymethylene, polycarbonates Thermopiatic polyurethanes or reactive resins (such as melamine resin, phenolic resin, epoxy resin) to process. Due to the adjustability of the blowing line, these materials can advantageously be produced at very different fiber strengths to very loose fiber webs. The formation within the formation gap can be carried out with high uniformity and constancy.
- polyolefins eg polyethylene, polypropylene, polyoctene, polymerized cycloalkenes
- aliphatic, cycloaliphatic and partially aromatic polyesters aliphatic and aromatic polyamides
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Nonwoven Fabrics (AREA)
- Inorganic Fibers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012008625 | 2012-04-27 | ||
PCT/EP2013/057777 WO2013160134A1 (en) | 2012-04-27 | 2013-04-15 | Method and device for melt-blowing, forming and plaiting finite fibres to produce a fibrous nonwoven |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2841634A1 true EP2841634A1 (en) | 2015-03-04 |
EP2841634B1 EP2841634B1 (en) | 2018-06-06 |
Family
ID=48184159
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13718534.4A Revoked EP2841634B1 (en) | 2012-04-27 | 2013-04-15 | Method and device for melt-blowing, forming and plaiting finite fibres to produce a fibrous nonwoven |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2841634B1 (en) |
CN (1) | CN104246045B (en) |
WO (1) | WO2013160134A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11447893B2 (en) | 2017-11-22 | 2022-09-20 | Extrusion Group, LLC | Meltblown die tip assembly and method |
DE102018005081A1 (en) * | 2018-06-27 | 2020-01-02 | Oerlikon Textile Gmbh & Co. Kg | Process for producing a meltblown nonwoven and a meltblown system |
CN212316388U (en) * | 2020-02-13 | 2021-01-08 | 上海捷英途新材料科技有限公司 | Production device for melt-blown filter cloth |
US11958308B1 (en) | 2023-05-31 | 2024-04-16 | G13 Innovation In Production Ltd | Thermal paper, and methods and systems for forming the same |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3607588A (en) * | 1966-09-21 | 1971-09-21 | Celanese Corp | Nonwoven fibrous products and methods and apparatus for producing such products |
US3978185A (en) * | 1968-12-23 | 1976-08-31 | Exxon Research And Engineering Company | Melt blowing process |
JPS6056825B2 (en) * | 1978-05-01 | 1985-12-12 | 東亜燃料工業株式会社 | Manufacturing method of nonwoven fabric |
JPS5668152A (en) | 1979-11-01 | 1981-06-08 | Toa Nenryo Kogyo Kk | Nonwoven fabric |
DE19913162C1 (en) * | 1999-03-24 | 2000-11-09 | Reifenhaeuser Masch | Thermoplastic polymer fiber fleece production apparatus comprises melt-blown fiber spinneret above machine with endless screen on which random fiber bundle is laid down as fleece by smoothing surfaces |
US6517648B1 (en) * | 2001-11-02 | 2003-02-11 | Appleton Papers Inc. | Process for preparing a non-woven fibrous web |
US7476632B2 (en) | 2002-11-15 | 2009-01-13 | 3M Innovative Properties Company | Fibrous nonwoven web |
DE10311439A1 (en) | 2003-03-15 | 2004-09-23 | Saurer Gmbh & Co. Kg | Assembly to spin and lay bands of melt spun filaments, for the production of nonwovens, has a filament take-off and spaced guide rollers with continuous belt extensions, to gather the filaments on a sieve laying surface |
FR2862986B1 (en) | 2003-11-27 | 2006-05-12 | Rieter Perfojet | NON-WOVEN PRODUCTION MACHINE, ITS ADJUSTMENT AND NON-WOVEN PROCESS |
US7902096B2 (en) * | 2006-07-31 | 2011-03-08 | 3M Innovative Properties Company | Monocomponent monolayer meltblown web and meltblowing apparatus |
CN101636529B (en) | 2007-01-19 | 2011-05-11 | 欧瑞康纺织有限及两合公司 | Apparatus and method for depositing synthetic fibers to form a non-woven web |
US8287909B2 (en) * | 2007-12-19 | 2012-10-16 | Tepha, Inc. | Medical devices containing melt-blown non-wovens of poly-4-hydroxybutyrate and copolymers thereof |
US20100266824A1 (en) * | 2009-04-21 | 2010-10-21 | Alistair Duncan Westwood | Elastic Meltblown Laminate Constructions and Methods for Making Same |
EP2344688B1 (en) * | 2008-11-13 | 2013-01-09 | Oerlikon Textile GmbH & Co. KG | Apparatus for producing a spunbonded fabric |
-
2013
- 2013-04-15 CN CN201380021780.1A patent/CN104246045B/en active Active
- 2013-04-15 EP EP13718534.4A patent/EP2841634B1/en not_active Revoked
- 2013-04-15 WO PCT/EP2013/057777 patent/WO2013160134A1/en active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2013160134A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN104246045B (en) | 2016-11-02 |
CN104246045A (en) | 2014-12-24 |
WO2013160134A1 (en) | 2013-10-31 |
EP2841634B1 (en) | 2018-06-06 |
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