EP2128320B1 - Verfahren und Vorrichtung zur Herstellung von Spinnvliesen aus Filamenten - Google Patents

Verfahren und Vorrichtung zur Herstellung von Spinnvliesen aus Filamenten Download PDF

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Publication number: EP2128320B1
Authority: EP; European Patent Office
Prior art keywords: water jet; fleece web; filaments; nonwoven web; pressure water
Prior art date: 2008-05-29
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

EP08009814.8A

Other languages

German (de)

English (en)

French (fr)

Other versions

EP2128320A1 (de

Inventor

Sebastian Sommer

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.)

2008-05-29

Filing date

2008-05-29

Publication date

2013-09-25

2008-05-29 Priority to EP08009814.8A priority Critical patent/EP2128320B1/de

2008-05-29 Application filed by Reifenhaeuser GmbH and Co KG Maschinenenfabrik filed Critical Reifenhaeuser GmbH and Co KG Maschinenenfabrik

2008-05-29 Priority to ES08009814.8T priority patent/ES2440256T3/es

2008-05-29 Priority to DK08009814.8T priority patent/DK2128320T3/da

2009-05-26 Priority to JP2011510883A priority patent/JP5599782B2/ja

2009-05-26 Priority to PCT/EP2009/003726 priority patent/WO2009144004A1/de

2009-05-26 Priority to US12/991,362 priority patent/US9856590B2/en

2009-05-26 Priority to CN200980119531XA priority patent/CN102046869B/zh

2009-05-27 Priority to SA109300331A priority patent/SA109300331B1/ar

2009-12-02 Publication of EP2128320A1 publication Critical patent/EP2128320A1/de

2013-09-25 Application granted granted Critical

2013-09-25 Publication of EP2128320B1 publication Critical patent/EP2128320B1/de

Status Active legal-status Critical Current

2028-05-29 Anticipated expiration legal-status Critical

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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
- 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
- D04H3/10—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 yarns or filaments made mechanically
- D04H3/11—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 yarns or filaments made mechanically by fluid jet
- 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
- D04H3/005—Synthetic 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
- D04H3/10—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 yarns or filaments made mechanically
- D04H3/105—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 yarns or filaments made mechanically by needling
- 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 process for producing spunbonded nonwovens of filaments, in particular of thermoplastic material. Furthermore, the invention also relates to a device for producing such spunbonded nonwovens. Filaments means in the context of the invention, in particular endless filaments. Endless filaments differ because of their quasi-endless length of staple fibers, which have much smaller lengths of, for example, 10 to 60 mm.
the filaments are spun using a spinning device and placed on a tray, in particular on a storage conveyor belt or Ablagesiebband to nonwoven web. It is known to pre-consolidate this nonwoven web by hydroentanglement.
the water jet treatment is usually carried out only from one side of the nonwoven web. Thereafter, the preconsolidated filament deposit or nonwoven web is detached from the deposit screen belt and fed to a separate water jet device for hydroentanglement or for hydraulic final consolidation.
the energy input of the successively staggered water jet nozzles and the first increases to the other nozzles.
the nozzles with the highest energy input are arranged as with respect to the conveying direction of the nonwoven web at the end or in the middle of the water jet device. For nonwoven webs with a very high basis weight, the energy input is so high that the process is no longer practicable.
WO 01 / 25529A is a heel lining for the shoe industry and a method for producing such a heel chuck described.
the heel lining is made of a nonwoven fabric with basis weights of 180 to 350 g / m 2 .
the fleece deposit or the nonwoven fabric is first pre-consolidated. This pre-consolidation can be done by calendering or by needling. A final consolidation is then performed as hydroentanglement.
a cover for a side airbag This shell consists of a consolidated polyester spunbonded nonwoven.
the polyester spunbonded nonwoven fabric can be preconsolidated thermally or by mechanical needling.
the final consolidation of the web is also done here by water jet needling.
EP-A-1 561 848 relates to a process for producing a spunbonded filament. First, a pre-consolidation of the nonwoven web is performed. Then the nonwoven web is moistened and then finally solidified by hydrodynamic consolidation.
the document EP-A-1 447 466 also relates to a process for producing a spunbonded filament.
the nonwoven web is first preconsolidated in a calender and then treated with a wetting agent. This is followed by hydrodynamic final consolidation of the spunbonded nonwoven.
the invention is based on the technical problem to provide a method of the type mentioned, with a nonwoven web, especially with higher basis weights over about 80 g / m 2 and above all about 100 g / m 2 in a simple and inexpensive manner and can be solidified with the lowest possible use of energy or total energy input.
the inventive method is particularly suitable for nonwoven webs with basis weights from 150 g / m 2 .
the invention is further based on the technical problem of specifying a corresponding device for the production of spunbond webs.
the invention teaches a method for the production of spunbonded nonwovens from filaments, in particular from thermoplastic material, wherein the filaments are spun from at least one spinning device, then cooled and stretched and then deposited on a tray to the nonwoven web, wherein the nonwoven web is preconsolidated by mechanical needling, wherein after filing the filaments to the nonwoven web and before the mechanical Needle punching the nonwoven web a liquid medium is introduced into the nonwoven web, wherein the nonwoven web is subsequently finally consolidated by hydrodynamic consolidation and wherein the final-bonded nonwoven web has a basis weight of more than 80 g / m 2 , preferably more than 100 g / m 2 and more preferably more than 150 g / m 2 .
Mechanical needling means the needling of the nonwoven web with a needle device or needle machine, which usually has a plurality of needles, which penetrate into the nonwoven web during needling.
Hydrodynamic consolidation or hydraulic consolidation means solidification with high pressure water jets acting on the nonwoven web.
the titre of the filaments in the nonwoven web is suitably 0.6 to 10 den, preferably 1 to 6 den, and particularly preferably 1 to 3 den.
the titre of the filaments may also be 0.05 to 20 den.
the inventive method proves particularly at lower titers between 0.05 den and 10 den, preferably between 0.05 and 6 as particularly advantageous since the fiber web or nonwoven web is then relatively dense and nonetheless a solidification with relatively low energy input is possible ,
the inventively produced nonwoven webs of finer fibers are characterized by an advantageously high strength.
the filaments are cooled after exiting the spinning device in a cooling chamber and stretched in a drafting device or aerodynamically stretched. It lies Furthermore, in the context of the invention that the stretched filaments are guided after the drawing device by a laying device having at least one diffuser. Following the installation device or following the diffuser, the filaments are then deposited to the nonwoven web.
Storage means in particular, a storage belt or storage belt.
a liquid medium is applied to the nonwoven web or introduced into the nonwoven web.
the liquid medium acts as a lubricant for mechanical needling.
a lubricant reduces the incorporation of the (dry) filaments in the nonwoven web and facilitates the mechanical needling or reduces the required forces and thus the energy required for mechanical needling.
EmpfohleneIER is at least one liquid medium from the group "water, aqueous solution, aqueous mixture, oil, oily suspension" introduced into the nonwoven web. According to a preferred embodiment, water and / or an aqueous solution and / or an aqueous mixture is introduced into the nonwoven web.
a highly preferred embodiment of the invention is characterized in that a hydrophilic liquid medium is introduced into the nonwoven web.
Hydrophilic liquid medium here means a liquid medium which gives the nonwoven web a hydrophilic character compared to the dry nonwoven web which has just been laid down. Dry nonwoven web here and below means the filament deposit or the nonwoven web before introducing the liquid medium or the hydrophilic liquid medium.
the invention is based on the finding that with a hydrophilic liquid medium, the hydrodynamic final solidification connected downstream of the preconsolidation is also facilitated. According to one embodiment of the invention can then on the Pre-moistening between the preconsolidation and the hydrodynamic final consolidation, which is described below, is dispensed with.
the liquid medium or hydrophilic liquid medium is introduced into the nonwoven web by means of at least one spray bar and / or by means of at least one overflow weir.
An embodiment of particular importance in the context of the invention is characterized in that the material introduced into the nonwoven web liquid medium is sucked in via at least one suction device in the nonwoven web.
at least one suction field or at least one suction device is arranged under a nonwoven web receiving Ablagesiebband.
a negative pressure is expediently applied to the suction field, or a negative pressure is expediently applied by the suction device, which is preferably in the range between 50 and 400 mbar.
the suction or suction of the liquid medium via at least one suction device with at least one transverse to the conveying direction of the nonwoven web suction slot takes place.
the introduction of the liquid medium, in particular of the hydrophilic liquid medium in the nonwoven web and the suitably carried out sucking or sucking the liquid medium has particularly for nonwoven webs with a basis weight over 130 g / m 2 , in particular for nonwoven webs with a basis weight over 150 g / m 2 proven.
the liquid medium or hydrophilic liquid medium in an amount of 0.2 to 50%, preferably from 0.5 to 30%, very preferably from 0.5 to 20% and particularly preferably from 0.5 to 15% based on the weight of the dry nonwoven web or on the weight of a dry surface portion of the nonwoven web introduced into the nonwoven web.
the puncture density in the mechanical needling is in particular 5 to 75 punctures / cm 2 , suitably 10 to 50 punctures / cm 2 , recommended 10 to 40 punctures / cm 2 and very preferably 12 to 30 punctures / cm 2 .
This preconsolidation serves to stabilize the fiber deposit or the nonwoven web for further treatment.
the pre-consolidation is carried out by mechanical needling on the tray or on the storage belt / Ablagesiebband on which the filaments are deposited to the nonwoven web. It is within the scope of the invention that the preconsolidated nonwoven web is removed from the tray and at least one further device or conveyor for the purpose of further treatment is supplied.
the mechanically pre-bonded nonwoven web is transversely stretched before hydrodynamic final consolidation in a cross-stretching device, preferably in a range of 5 to 50%.
a cross-stretching device preferably in a range of 5 to 50%.
known measures such as sheet rolls, clamping frame systems, etc. can be used.
tenter it may be convenient to choose the exit speed from this cross-stretching device less than the entry speed to achieve a more effective reorientation of the filaments while minimizing the transverse stretching forces.
Such a transverse stretching would expediently in a range below the melting point of the nonwoven web raw material.
the nonwoven web is pre-moistened after the mechanical needling and before the hydrodynamic consolidation or final solidification. Subsequently, the hydrodynamic solidification by water jet treatment then takes place in at least one water jet device.
the pre-moistening is carried out by a first water jet unit, in particular by a first water jet beam, which is connected upstream of the actual water jet device for final consolidation and is operated at low water pressure.
Low water pressure means in particular a water pressure of 5 to 120 bar and preferably from 20 to 100 bar.
the higher water pressures relate to heavier nonwoven webs with higher basis weights of, for example, 200 g / m 2 .
Lighter nonwoven webs are pre-moistened at lower water pressures. It is within the scope of the invention that pre-moistening is carried out with the proviso that no appreciable densification of the filament deposit or nonwoven web takes place. According to another embodiment variant, the pre-wetting can also take place by means of a spraying device, with which water or an aqueous solution or aqueous mixture is sprayed onto the nonwoven web. Appropriately, there is a suction or suction of the liquid.
the pre-wetting of the nonwoven web with water or with an aqueous system causes a better momentum transfer in the subsequent hydrodynamic consolidation / final consolidation.
hydrophilic substances or additives are introduced into the nonwoven web. Also, this can improve the momentum transfer.
According to an embodiment of the invention can also be dispensed with the pre-moistening described above.
a particularly recommended embodiment of the invention is characterized in that the water jet treatment takes place at the hydrodynamic final consolidation both from the top and from the bottom of the nonwoven web forth.
the upper side of the nonwoven web means the side of the nonwoven web facing the filament stream to be deposited.
the water jet treatment takes place in the hydrodynamic final consolidation with high-pressure water jets.
High pressure water jets means in particular water jets, which have a water pressure of over 120 bar, suitably from 130 to 450 bar, preferably from 150 to 400 bar.
a very preferred embodiment which is of very particular importance in the context of the invention, is characterized in that the water jet treatment is performed with at least one high-pressure water jet beam over the top of the nonwoven web and with at least one high-pressure water jet bar under the underside of the nonwoven web. Then, the top of the nonwoven web is thus acted upon by the high pressure water jets of one high pressure water jet bar and the bottom of the nonwoven web by the high pressure water jets of the other high pressure water jet bar. It is within the scope of the invention that a high-pressure water jet beam is arranged transversely to the conveying direction or transport direction of the nonwoven web.
a high pressure water jet beam has a plurality of nozzles distributed along the length of the beam from which the high pressure water jets exit.
only two high-pressure water jet beams are provided, one of which is arranged above the upper side of the nonwoven web and of which the other is arranged below the underside of the nonwoven web.
a maximum of four high pressure water jet beams for the hydrodynamic or Hydraulic final consolidation available.
the first four high-pressure water jet beams with respect to the conveying direction of the nonwoven web make up at least 80% of the total hydraulic work of the hydraulic final consolidation.
the comparisons of the hydraulic work or the hydraulic hardening work relate here and below in particular to a respective nozzle bore of the beams to be compared or high-pressure water jet beams.
the hydraulic work per nozzle bore of the beams to be compared is compared.
these two high pressure water jet beams differ in water pressure of the exiting high pressure water jets and / or nozzle hole density in hpi (nozzle holes per inch width) and / or nozzle hole diameter.
the high-pressure water jets of the first high-pressure water jet beam with respect to the conveying direction of the nonwoven web penetrate the entire nonwoven web thickness or essentially the entire nonwoven web thickness.
the second high-pressure water-jet beam second with respect to the conveying direction of the nonwoven web then acts from the opposite side of the nonwoven web.
High-pressure water jets of this second high pressure water jet bar expediently penetrate at least 25%, preferably at least 30%, of the nonwoven web thickness.
At least one high-pressure water jet beam of the first pair of high-pressure water jet beams with respect to the conveying direction of the nonwoven web is subjected to hydraulic solidification / final solidification through the entire nonwoven web thickness or essentially through the entire nonwoven web thickness. Possibly. Further downstream high-pressure water jet beams then expediently only act on near-surface filaments and serve for smoothening the nonwoven web surface or the nonwoven web surfaces.
the high pressure water jet bar with the highest hydraulic hardening work has a proportion of at least 33%, preferably a proportion of at least 40% and preferably a proportion of at least 50th % of total hydraulic consolidation work of hydroentanglement.
the high pressure water jet bar with the highest hydraulic work hardening in the conveying direction of the nonwoven web is first or second or third high pressure water jet bar, preferably the first or second high pressure water jet bar.
the total hydraulic work hardening work of the hydraulic consolidation is less than 1 kWh / kg, preferably less than 0.8 kWh / kg.
hydraulic solidification is carried out with a water jet device, in particular with at least one high-pressure water jet beam, which has a hole density of less than 40 hpi, preferably less than 35 hpi and preferably less than 30 hpi.
Hpi means "holes per inch width" or "nozzle holes per inch width”.
the first high-pressure water jet bar after the pre-moistening has the aforementioned hole density.
the high pressure water jet bar having the highest hydraulic work hardening has the aforementioned hole density.
the downstream has another high-pressure water jet beam or have the downstream other high-pressure water jet beam expediently a higher hole density than the first high pressure water jet beam.
the first high pressure water jet bar in the conveying direction of the nonwoven web preferably has a hole density of 20 to 30 hpi and the downstream second high pressure water jet bar has a hole density of 25 to 35 hpi, wherein the hole density of the second high pressure water jet bar is higher than the hole density of the first high pressure water jet bar.
a downstream third high-pressure water jet bar it preferably has a hole density of 30 to 45 hpi and preferably a hole density of 35 to 45 hpi, the hole density of the third high pressure water jet bar is higher than the hole density of the first high pressure water jet bar and recommended higher than the hole density of the second high pressure water jet beam.
a water jet in particular with a high-pressure water jet bar, which is characterized by a hole diameter or nozzle bore diameter of 0.08 to 0.25 mm, preferably from 0.08 to 0.15 mm, preferably from 0.09 to 0.13 mm, for example, 0.12 mm distinguished.
all high-pressure water-jet beams of the hydraulic consolidation have the aforementioned hole diameter or the aforementioned nozzle bore diameter.
the first high-pressure water jet bar in the conveying direction of the nonwoven web has a larger hole diameter than the following high-pressure water jet bar or as the subsequent high-pressure water jet bar.
the first high-pressure water jet bar has a hole diameter of 0.10 to 0.18 mm, preferably 0.12 to 0.16 mm and for example 0.14 mm.
the in Conveying direction second high-pressure water jet bar a hole diameter of 0.08 to 0.16 mm, preferably from 0.10 to 0.14 mm and for example 0.12 mm. If a third high pressure water jet bar is provided, it is recommended that it has finer nozzles or smaller hole diameters than the first high pressure water jet bar.
the first high-pressure water jet device in the conveying direction of the nonwoven web or the first high-pressure water jet bar in the conveying direction is recommended to be operated with a water pressure of more than 220 bar, preferably more than 250 bar.
the second high-pressure water jet device or the second high-pressure water jet beam in the conveying direction is also operated with a water pressure of more than 220 bar, preferably more than 250 bar.
the first high pressure water jet device in the conveying direction or the first high pressure water jet bar in the conveying direction is preferably provided on one side of the nonwoven web while the second high pressure water jet device in the conveying direction or the second high pressure water jet beam in the conveying direction is arranged on the opposite side of the nonwoven web. If at least one downstream high-pressure water jet device or at least one downstream high-pressure water jet beam is provided in the conveying direction of the nonwoven web, this or this is expediently operated with a water pressure of over 120 bar to 220 bar. This downstream high-pressure water jet bar or these downstream high-pressure water jet bars are used primarily for smoothing the nonwoven surfaces.
the hydraulic consolidation according to the invention can be carried out in an inline process or in an off-line process.
in-line operation the hydraulic consolidation takes place continuously after mechanical needling or preferably after pre-moistening.
offline operation the pre-bonded nonwoven web is first stored, for example rolled up and later supplied to the hydraulic consolidation or the pre-wetting and the hydraulic consolidation.
the hydraulically consolidated nonwoven web is dried.
the hydraulically consolidated nonwoven web is laterally stretched and / or thermostabilized after or during drying.
thermostabilizing the temperatures are between the softening point and the melting temperature of the plastic.
a very preferred embodiment of the invention is characterized in that the endver originally isolated and dried and optionally transversely stretched nonwoven web has a basis weight of more than 130 g / m 2, preferably of more than 150 g / m 2, preferably of more than 180 g / m 2 and particularly preferably greater than 200 g / m 2 .
the inventive method is particularly suitable for nonwoven webs or spunbonded nonwovens with higher basis weights.
the invention also provides an apparatus for producing spunbonded filaments, in particular made of thermoplastic material, wherein a spinning device is provided for spinning the filaments, wherein a cooling device for cooling the filaments and an adjoining stretching device for stretching or for aerodynamic stretching the filaments and a storage device for filing the filaments to the nonwoven web is provided wherein at least one needle device or needle machine is present, with which the nonwoven web is preconsolidated by mechanical needling, wherein after filing the filaments to the nonwoven web and before the mechanical needling of the nonwoven web, a liquid medium in the nonwoven web can be introduced and wherein at least one water jet device is provided, with which the nonwoven web is hydrodynamically or hydraulically endverfestigbar and wherein the water jet treatment for hydraulic final consolidation takes place from the top and from the bottom of the nonwoven web.
the water jet device is thus configured with the proviso that the water jet treatment of the nonwoven web from the top and from the bottom of the nonwoven web can be done. It is within the scope of the invention that a pre-moistening device for pre-moistening the non-woven web is arranged in front of the water-jet device.
the emerging from the spinning filaments are according to a particularly preferred embodiment of the invention according to the Reicofil III process ( DE-PS 196 203 79 ) or according to the Reicofil IV method ( EP-A 1 340 843 ). It is within the scope of the invention that the transition region between the cooling device or cooling chamber and the drawing device is designed to be closed and that no air is supplied except for the supply of cooling air in the cooling chamber in this transition region. It is within the scope of the invention that a closed cooling chamber is used. Closed cooling chamber means that the Cooling chamber is formed to the supply of cooling air to the environment completed. According to a particularly preferred embodiment of the invention, the filaments are cooled with the same air or cooling air in the cooling device and then stretched in the drawing device.
cooling air supplied in the cooling chamber is also used for aerodynamic stretching of the filaments in the drawing device.
a particularly recommended embodiment of the invention is characterized in that the entire unit of cooling device and drawing device is designed to be closed and, except for the supply of cooling air in the cooling chamber, no further air is supplied to this unit.
the invention is based on the finding that with the method according to the invention and with the device according to the invention spun nonwovens can be produced with relatively low energy input, which are characterized by optimum properties.
the spunbonded webs have excellent strength or delamination resistance with low-energy production of the spunbonded nonwovens.
the hydraulic or hydrodynamic consolidation can be operated with minimized energy use.
the device according to the invention is compared to the known from practice devices with a smaller number of water jet beams or high pressure water jet beams and is thus constructed little complicated and expensive.
the inventive method is particularly suitable for spunbonded nonwovens with higher basis weights from 100 g / m 2 and especially from 150 g / m 2 .
the process according to the invention also brings particular advantages for spunbonded nonwovens which have filaments with low titres. It should also be emphasized that the method according to the invention and the device according to the invention can be operated at relatively low cost.
the figures show an apparatus for the production of spunbonded filaments, which are preferably made of thermoplastic material.
the filaments are spun with a spinning device or Spinnerette 1 and are then introduced into a cooling chamber 2, in which the filaments are cooled with cooling air.
the cooling chamber 2 is divided in the embodiment into two cooling sections 2a and 2b.
an air supply cabin 8 is arranged, which is divided into an upper cabin section 8a and a lower cabin section 8b. From the two cabin sections 8a, 8b expediently cooling air with different convective heat removal capability is supplied.
cooling air of different temperature can be supplied from the two cabin sections 8a and 8b.
the filaments can be acted upon in the two cooling sections 2a and 2b each with cooling air of different temperature and / or different amount and / or different humidity.
the stretching device 4 is followed by a laying device 6 which has at least one diffuser 13, 14.
two diffusers are provided, namely a first diffuser 13 and an adjoining second diffuser 14.
an ambient air inlet gap 15 is provided between the first diffuser 13 and the second diffuser 14.
a continuously moving Ablagesiebband 7 for filing the filaments to the nonwoven web 11 is disposed below the laying device 6.
a continuously moving Ablagesiebband 7 for filing the filaments to the nonwoven web 11 is disposed below the laying device 6.
a continuously moving Ablagesiebband 7 for filing the filaments to the nonwoven web 11 is disposed below the laying device 6.
a continuously moving Ablagesiebband 7 for filing the filaments to the nonwoven web 11 is disposed below the laying device 6.
a continuously moving Ablagesiebband 7 for filing the filaments to the nonwoven web 11 is disposed below the laying device 6.
the filaments emerging from the second diffuser 14 are deposited on the laying screen belt 7 to the nonwoven web 11.
a suction device 19 the air sucks from below through the Ablagesiebband 7.
a compacting device 9 which here consists of two outlet rollers 10, 12, which are suitably heated.
the outlet rollers 10, 12 are not mandatory.
the Fig. 2 shows a second section of the device.
This embodiment according to Fig. 2 does not belong to the invention.
the nonwoven web After depositing the filaments on the Ablagesiebband 7 and possibly after passing through the compacting device 9, the nonwoven web leaves the Ablagesiebband 7 and then the nonwoven web 11 is passed through a needle device 16 (needle machine) in which the nonwoven web 11 is mechanically pre-consolidated by needling.
the nonwoven web 11, which has been preconsolidated in this way, is then fed to a water jet device 17 in which the nonwoven web 11 is hydraulically or hydrodynamically finally compacted.
the nonwoven web 11 Before the final consolidation, the nonwoven web 11 is pre-moistened with a pre-moistening device 18.
the pre-moistening device 18 is expediently and according to the exemplary embodiment Fig. 2 formed as transversely to the conveying direction of the nonwoven web 11 arranged water jet beam.
the water jet beam is operated in contrast to the downstream high-pressure water jet beams 20, 21, 25 and 26 only with low water pressure.
the water jet beam of the pre-wetting device 18 expediently has a nozzle bore diameter from 0.08 to 0.15 mm, preferably from 0.10 to 0.14 mm and, for example, a nozzle bore diameter of 0.12 mm.
This water jet beam has recommended a hole density or nozzle bore density of 35 to 45 hpi, in particular a hole density of 40 hpi.
the water jet beam of the pre-wetting device 18 is expediently operated with a water pressure of 5 to 120 bar, preferably with a water pressure of 20 to 110 bar and for example with a water pressure of 100 bar.
the two high-pressure water jet beams 20, 21 of the water jet device 17 preferably have a nozzle bore diameter of 0.08 to 0.16 mm.
the first high pressure water jet beam 20 is characterized by a preferred embodiment of the invention by a hole density or nozzle bore seal smaller than 40 hpi, preferably less than 30 hpi and for example 25 hpi.
the second high-pressure water jet bar 21 has in comparison to a larger hole density, preferably a hole density greater than 25 hpi, for example, a hole density of 30 hpi.
the first and second high-pressure water jet beams 20, 21 are expediently operated at a water pressure above 220 bar.
the water pressure of the two downstream high pressure water jet bars 25 and 26 is preferably between 130 and 220 bar.
the two high-pressure water jet bars 25 and 26 primarily act on near-surface filaments and serve to smoothen the nonwoven web surfaces.
the nonwoven web 11 is expediently dried.
the residual water content is removed from the Wasserstrahlendverfesttician.
a device 22 is provided with which the liquid medium is applied to the nonwoven web 11 from above.
a suction device 23 is arranged, with which the applied liquid from the device 22 is sucked into the nonwoven web 11.
this suction device 23 has a suction slot 24 arranged transversely to the conveying direction of the nonwoven web 11.

Landscapes

Engineering & Computer Science (AREA)
Textile Engineering (AREA)
Mechanical Engineering (AREA)
Nonwoven Fabrics (AREA)
Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Treatment Of Fiber Materials (AREA)

EP08009814.8A 2008-05-29 2008-05-29 Verfahren und Vorrichtung zur Herstellung von Spinnvliesen aus Filamenten Active EP2128320B1 (de)

Priority Applications (8)

Application Number	Priority Date	Filing Date	Title
ES08009814.8T ES2440256T3 (es)	2008-05-29	2008-05-29	Procedimiento y dispositivo para la fabricación de tela no tejida a partir de filamentos
DK08009814.8T DK2128320T3 (da)	2008-05-29	2008-05-29	Fremgangsmåde og indretning til fremstilling af filterdug af filamenter
EP08009814.8A EP2128320B1 (de)	2008-05-29	2008-05-29	Verfahren und Vorrichtung zur Herstellung von Spinnvliesen aus Filamenten
PCT/EP2009/003726 WO2009144004A1 (de)	2008-05-29	2009-05-26	Verfahren und vorrichtung zur herstellung von spinnvliesen aus filamenten
JP2011510883A JP5599782B2 (ja)	2008-05-29	2009-05-26	フィラメントから成る紡糸フリースを製造するための方法および装置
US12/991,362 US9856590B2 (en)	2008-05-29	2009-05-26	Method of making a spunbond web from filaments
CN200980119531XA CN102046869B (zh)	2008-05-29	2009-05-26	用于由长丝制造纺粘型非织造物的方法和装置
SA109300331A SA109300331B1 (ar)	2008-05-29	2009-05-27	طريقة وجهاز لتصنيع أقمشة من شعيرات مترابطة منسوجة

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
EP08009814.8A EP2128320B1 (de)	2008-05-29	2008-05-29	Verfahren und Vorrichtung zur Herstellung von Spinnvliesen aus Filamenten

Publications (2)

Publication Number	Publication Date
EP2128320A1 EP2128320A1 (de)	2009-12-02
EP2128320B1 true EP2128320B1 (de)	2013-09-25

Family

ID=39743769

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP08009814.8A Active EP2128320B1 (de)	2008-05-29	2008-05-29	Verfahren und Vorrichtung zur Herstellung von Spinnvliesen aus Filamenten

Country Status (8)

Country	Link
US (1)	US9856590B2 (da)
EP (1)	EP2128320B1 (da)
JP (1)	JP5599782B2 (da)
CN (1)	CN102046869B (da)
DK (1)	DK2128320T3 (da)
ES (1)	ES2440256T3 (da)
SA (1)	SA109300331B1 (da)
WO (1)	WO2009144004A1 (da)

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ES2643697T3 (es)	2011-06-23	2017-11-23	Fiberweb, Llc	Artículo multicapa permeable al vapor y prácticamente impermeable al agua
EP2723567A4 (en)	2011-06-24	2014-12-24	Fiberweb Inc	MULTILAYER ARTICLE PERMEABLE TO WATER VAPOR, BUT ESSENTIALLY WATERPROOF
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2008
- 2008-05-29 DK DK08009814.8T patent/DK2128320T3/da active
- 2008-05-29 EP EP08009814.8A patent/EP2128320B1/de active Active
- 2008-05-29 ES ES08009814.8T patent/ES2440256T3/es active Active
2009
- 2009-05-26 US US12/991,362 patent/US9856590B2/en active Active
- 2009-05-26 CN CN200980119531XA patent/CN102046869B/zh active Active
- 2009-05-26 JP JP2011510883A patent/JP5599782B2/ja not_active Expired - Fee Related
- 2009-05-26 WO PCT/EP2009/003726 patent/WO2009144004A1/de not_active Ceased
- 2009-05-27 SA SA109300331A patent/SA109300331B1/ar unknown

Also Published As

Publication number	Publication date
US9856590B2 (en)	2018-01-02
JP5599782B2 (ja)	2014-10-01
WO2009144004A1 (de)	2009-12-03
SA109300331B1 (ar)	2014-05-08
ES2440256T3 (es)	2014-01-28
US20110147977A1 (en)	2011-06-23
EP2128320A1 (de)	2009-12-02
JP2011521119A (ja)	2011-07-21
CN102046869B (zh)	2012-06-20
CN102046869A (zh)	2011-05-04
DK2128320T3 (da)	2014-01-13

Publication	Publication Date	Title
EP2128320B1 (de)	2013-09-25	Verfahren und Vorrichtung zur Herstellung von Spinnvliesen aus Filamenten
EP1967628B2 (de)	2013-07-17	Verfahren und Vorrichtung zur Herstellung eines Spinnvlieses
EP3974572B1 (de)	2024-05-22	Verfahren zur herstellung eines vliesaggregates und vliesaggregat
EP3239378B1 (de)	2019-02-13	Vorrichtung und verfahren zur herstellung von vliesen aus endlosfilamenten
DE60030120T2 (de)	2007-02-15	Verfahren zur herstellung eines vliesstoffes, anlage zur durchführung dieses verfahren, hergestellter vliesstoff
EP2630287B1 (de)	2016-02-24	Verfahren und vorrichtung zur herstellung eines verbundvlieses
DE2840827C2 (da)	1988-06-09
EP3771763B1 (de)	2021-12-15	Vorrichtung und verfahren zur herstellung eines vliesstoffes aus gekräuselten fasern
DE1157513B (de)	1963-11-14	Verfahren zur Herstellung einer Matte aus endlosen Faeden oder Stapelfasern
WO2016173685A1 (de)	2016-11-03	Anlage und verfahren zur verfestigung und strukturierung von fasern zu einem vlies
DE60036994T2 (de)	2008-08-28	Faservliesstoff aus Polypropylenfaser und Verfahren zu dessen Herstellung
EP3061855B1 (de)	2019-02-27	Krempelanlage und verfahren zur verfestigung mindestens eines faserflors
EP3382080B1 (de)	2019-08-07	Verfahren und vorrichtung zur herstellung eines vlieses aus fasern
EP1726700B1 (de)	2013-02-27	Verfahren und Vorrichtung zur Herstellung eines Spinnvlieses
EP4168616A1 (de)	2023-04-26	Kontinuierliches faservlies-herstellungsverfahren sowie zugehörige faservlies-herstellungsanordnung und faservliesplatine
EP3495543B1 (de)	2020-04-08	Anlage und verfahren zur erzeugung eines spinnvlieses
DE102005060615A1 (de)	2007-06-21	Verfahren und Vorrichtung zum Verfestigen einer laufenden Vliesbahn sowie ein Vlies
EP2106468A1 (de)	2009-10-07	Verfahren und vorrichtung zur herstellung eines ein- oder mehrlagigen vlies
EP1396567B2 (de)	2011-04-20	Verfahren zur Herstellung einer Spinnvliesbahn aus Bikomponenten-Filamenten
DE10019342B3 (de)	2006-02-09	Verfahren zur Verfestigung von Faser- und/oder Filamentvliesen
DE10258112B4 (de)	2007-03-22	Verfahren zur Herstellung eines Flächengebildes aus zumindest teilweise gesplitteten Garnen, Fasern oder Filamenten
DE10345953B4 (de)	2006-11-30	Vliesstoff und Verfahren zur seiner Herstellung
DE1596574C2 (de)	1975-10-16	Verfahren zur Herstellung einer gleichmaßigen Fadenmatte
EP4001488B1 (de)	2024-04-24	Vorrichtung zur herstellung von vliesstoffen aus endlosfilamenten
DE1560801C3 (de)	1977-04-28	Verfahren zur Herstellung von Vliesen durch Schmelzspinnen

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