EP1250482B1 - Method and device for production of composite non-woven fibre fabrics by means of hydrodynamic needling - Google Patents

Method and device for production of composite non-woven fibre fabrics by means of hydrodynamic needling Download PDF

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Publication number
EP1250482B1
EP1250482B1 EP20010911482 EP01911482A EP1250482B1 EP 1250482 B1 EP1250482 B1 EP 1250482B1 EP 20010911482 EP20010911482 EP 20010911482 EP 01911482 A EP01911482 A EP 01911482A EP 1250482 B1 EP1250482 B1 EP 1250482B1
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EP
European Patent Office
Prior art keywords
non
woven fabric
pre
characterised
strengthening
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.)
Not-in-force
Application number
EP20010911482
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German (de)
French (fr)
Other versions
EP1250482A2 (en
EP1250482B2 (en
Inventor
Gerold Fleissner
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.)
Fleissner GmbH
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Fleissner GmbH
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Filing date
Publication date
Family has litigation
Priority to DE10001723 priority Critical
Priority to DE10001723 priority
Priority to DE2000104448 priority patent/DE10004448A1/en
Priority to DE10004448 priority
Application filed by Fleissner GmbH filed Critical Fleissner GmbH
Priority claimed from DK01911482T external-priority patent/DK1250482T4/en
Priority to PCT/EP2001/000383 priority patent/WO2001053588A2/en
Publication of EP1250482A2 publication Critical patent/EP1250482A2/en
Publication of EP1250482B1 publication Critical patent/EP1250482B1/en
Application granted granted Critical
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26003888&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1250482(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Publication of EP1250482B2 publication Critical patent/EP1250482B2/en
Application status is Not-in-force legal-status Critical
Anticipated expiration legal-status Critical

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Classifications

    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H18/00Needling machines
    • D04H18/04Needling machines with water jets
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/44Non-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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46Non-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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/48Non-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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
    • D04H1/49Non-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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation entanglement by fluid jet in combination with another consolidation means
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/44Non-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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46Non-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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/498Non-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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70Non-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
    • D04H1/74Non-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 the fibres being orientated, e.g. in parallel (anisotropic fleeces)
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H13/00Other non-woven fabrics
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H5/00Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • D04H5/02Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling
    • D04H5/03Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling by fluid jet
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H5/00Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • D04H5/08Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of fibres or yarns

Abstract

A conventional method for the production of a composite non-woven fibre from at least one spun non-woven fibre and subsequent application of a wood pulp layer to the above for production of a hygiene product is known. Accordingly, the spunbonded non-woven fibre is hydrodynamically needled, before the application of the pulp layer, in order to increase the fluid dispersion properties. Consequently, the pulp layer can no longer be needled, as the pulp would be washed out through the non-woven fibre. Due to the required abrasion resistance a bonding of the non-woven fibre is, however, necessary. According to the invention, the above problem is resolved, whereby a non-woven fibre is compressed or calendered with compressed air, as a pre-bonding treatment, before coating with the super-absorbent material, then the woodpulp layer is applied and both are bonded with a hydrodynamic water needling, followed by drying. A further calandering can be added. A further pre-bonded, in other words, calendered spunbonded, or card non-woven fibre can be applied to the spunbonded non-woven fibre as support layer, or the reverse.

Description

From EP-A-0 333 209 it is known to use continuous elastomeric fibers together with Woodpulp fibers hydrodynamically connect to each other and thereby the composite nonwoven to solidify. In this solidification process, there is a risk that a large number of pulp fibers is washed out of the system, so lost fibers walk. In addition, it has been found in practice that the outer layer of such a composite nonwoven fabric has a tendency to pilling, as described in WO 90/04066 is described. For the improvement is proposed according to EP-A-0 540 041, the Endlosfaservlies before the task of the pulp fibers to treat hydrodynamically. This should give the fleece not only a higher strength, but the absorption capacity of the nonwoven fabric for the pulp fibers, which improve liquid distribution properties. To this writing is then given the pulp fiber on the needled mat only and then dried to bond to the web or mechanically pressed into the web.

It has been found that all these types of nonwoven fabric production do not live up to the conditions in practice. In particular, the pilling inclination the composite nonwoven was complained, and also the outside of the continuous fiber fleece.

The invention is based on the object, a method and the associated device to find with which this easy surface wear ability improves is still achievable and good binding of the pulp fibers in the carrier nonwoven. Furthermore Care should be taken to ensure that the pulp layer applied is effective Do not connect or get lost with the carrier fleece.

Based on EP-A-0 540 041, the invention provides the solution of the problem in that the spunbonded nonwoven before coating with the superabsorbent Pre-consolidated material, as needled with air or calendered for preconsolidation is abandoned, then the Woodpulpschicht and both together with a solidified hydrodynamic water needling and then dried. The Solidification of the calendering of the continuous fiber fleece before further processing not only improves the abrasion resistance of the final product but also reduces it a pulp loss in Wasservernadein in and through the web through. But it is to note that this calendering is not too strong. Is the solidification too high, the binding points are too diverse, then is a compound of the pulp layer made difficult by the water needling with the calendered fleece. For this Basically, to improve the Pillingneigung the fleece at the end of Binding process after drying can be calendered once again, creating a firm integration of all surface fibers can be achieved. In the case of a nonwoven product with only one spunbond layer, only the roller to be heated, the Spunbond layer is adjacent.

It should be noted that the pulp layer in this manufacturing process hydrodynamic is connected to the fleece, otherwise the product can because of a Stratification in practice does not exist. It is still better if on the Pulpschicht abandoned another pre-consolidated continuous filament or carded web and only the three layers are hydrodynamically needled together. Also then an end calendering is an advantage. It is also advantageous instead of a continuous fiber fleece to use a calendered carded web as a carrier fleece, then As a cover layer, a spunbonded nonwoven is applied.

A corresponding device for carrying out the method is shown schematically in the drawing:

Fig. 1
In the side view, a continuous system for the production of a composite fleece with only a carrier pad,
Fig. 2
also in the side view of the plant of FIG. 1 supplemented by the supply of an additional cover layer of a continuous fiber fleece before the water needling and
Fig. 3
a plant according to FIG. 2, however, with a carding machine at the inlet for producing a carded web as a carrier layer.

From the device 1, which is substantially known and not shown in detail to be continuous, emerging continuous filaments 2 hit the below leading endless belt 3, which leads in the direction of arrow 4. This endless band 3 is assigned a Kalanderwerk 5, which is as desired with energy and Heat possibly also finely embossed solidified fleece supplies. The calender device can also be replaced by a not shown here Luftverfestigungseinrichtung become. The solidification effect should be low, so that the pulp by means of Needling still receives an intimate connection with the continuous fiber fleece. To As is known, the task of the pulp fiber z. B. with a Device 6 according to EP-A-0 032 772. Both nonwoven layers together then become for connection to the hydrodynamic needling 7 acted instead on an endless belt according to FIG. 1 also on a permeable drum according to FIG. 2 can be carried out. The drying process on a screen drum device 8, 9 with aeration follows. In the device 8 is the screening drums of the Fan directly assigned to the front. Finally, there should be a further calendering 15, 16, but here one with higher energy. The solidification must be so be intense that a higher, satisfactory abrasion resistance on the final product arises. In the example of Fig. 1, only the roller 16, with the Spunbondvlies Touch has to be heated.

The continuation system according to FIG. 2 corresponds to that of FIG. 1, there is only one second, only slightly pre-consolidated endless fiber fleece 12 produced with the device 10, which of course also presented with a role, not shown, so prefabricated can. This also applies to the carrier fleece according to Fig. 1 with the device 1 - 4. Anyhow the upper cover fleece 12 should also be pre-consolidated with a calender 11 be. After the cover fleece 12 on the device 6 with the base fleece filed from the device 1, 5 pulp layer is stored, said Water needling, which in this embodiment also from both sides if necessary can also be multi-stage, since the pulp layer covered on both sides by a fleece is. Serve consecutively arranged needling drums 13, 14, the meandering are bypassed and each of which indicated by the arrows nozzle bars are assigned from above. The subsequent drying takes place here with another type of through-air dryer 9, the screening drum 9 'of the Fan is assigned externally. Finally, here also the calender 15, 16 be run through, but then both rollers 15, 16 are to be heated.

So far, only the production of a Spunbondvlieses for the subsequent calendering discussed. Of course you can instead of a Spunbond fleece produce a carded web as a carrier layer, this calendering 5 and thus pre-consolidated and give the pulp layer 6 on this fleece. This is shown in FIG. 3. Serves as a fleece laying a carding 1 '- 4'. The clutter exists from a box feeder 1 'with an underlying Schüttelrutsche 2', the the evenly spread across the width fibers of the carding with the scratch and Tear rollers 3 'passes. The following endless belt 4 'passes the laid carded web to the calender 5 as described above. As a cover layer 12 comes then after the pulp layer a sheet bond web in question, which in the schematically shown Unit 10 can be formed. Similarly, the need may arise to use a spunbond nonwoven as the carrier fleece, after the pulp layer a carded web is hung up. So then the unit 10 would represent a device like it is denoted by the reference numerals 1 '- 4', while in place of the carding a Spunbondeinrichtung similar as denoted by the reference numerals 1, 2 arranged is.

Claims (11)

  1. Method for producing a composite non-woven fabric from at least one carrier non-woven fabric such as spun-bonded non-woven fabric and a, for example, wood pulp layer applied to this carrier non-woven fabric for the production of a hygiene product, characterised in that the spun-bonded non-woven fabric is compressed in the dry state for pre-strengthening before the coating with the super-absorbent material, the wood pulp layer is then applied and the two together are strengthened with a hydrodynamic water needling process and are then dried.
  2. Method according to claim 1 characterised in that the pre-strengthening, pre-compressing is performed with compressed air.
  3. Method according to claim 1, characterised in that the pre-strengthening, pre-compressing is created through calendering.
  4. Method according to claim 1 - 3, characterised in that a covering layer is applied to the super absorbent material before the step of water needling strengthening onto the two-part composite non-woven fabric.
  5. Method according to claim 4, characterised in that a pre-strengthened and calendered spun-bonded non-woven fabric is also provided as covering layer.
  6. Method according to claim 5, characterised in that a pre-strengthened and calendered card non-woven fabric is provided as covering layer.
  7. Method according to claim 1 to 6, characterised in that the pre-strengthening and calender strengthening is performed before the water needling only lightly binding the fibres of the carrier non-woven fabric.
  8. Method according to one of the claims 1 - 7, characterised in that the dried composite non-woven fabric is calendered again, however this time with greater force.
  9. Method more especially according to one of the preceding claims, characterised in that a calendered card non-woven fabric is initially formed as carrier non-woven fabric, onto which a spun-bonded non-woven fabric is applied as covering layer after the pulp layer.
  10. Device for the production of a hygiene product formed from spun-bonded non-woven fabric together with a super absorbent material layer for the performance of the method according to one of claims 1 - 9, comprising
    a) a spun-bonding or carding apparatus (1, 2: 10, 14'),
    b) a compressed air strengthening or calendering apparatus (5, 11),
    e) where applicable, a directly connected apparatus (6) for applying a wood pulp layer onto the pre-strengthened carrier non-woven fabric,
    f) a water needling apparatus (7: 13, 14), the water jets of which are aligned towards the wood pulp layer.
    g) a drier (8, 9) and
    h) where applicable, another pre-strengthening and calendering apparatus (15, 16).
  11. Device according to claim 10, characterised in that upstream of the hydrodynamic water needling apparatus (1, 2, 5), for forming a covering layer, there is another
    c) spun-bonding or carding apparatus (10), which
    d) is followed by a strengthening and calendering apparatus (11) upstream of the water needling apparatus (13, 14).
EP01911482A 2000-01-17 2001-01-13 Method and device for production of composite non-woven fibre fabrics by means of hydrodynamic needling Not-in-force EP1250482B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE10001723 2000-01-17
DE10001723 2000-01-17
DE2000104448 DE10004448A1 (en) 2000-01-17 2000-02-03 Making composite non-woven, e.g. for sanitary products, involves calendering a support layer, applying a wood pulp layer and needle punching with water jets
DE10004448 2000-02-03
PCT/EP2001/000383 WO2001053588A2 (en) 2000-01-17 2001-01-13 Method and device for production of composite non-woven fibre fabrics by means of hydrodynamic needling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK01911482T DK1250482T4 (en) 2000-01-17 2001-01-13 Methods and apparatus for the production of composite fabrics by means of hydrodynamic filtration

Publications (3)

Publication Number Publication Date
EP1250482A2 EP1250482A2 (en) 2002-10-23
EP1250482B1 true EP1250482B1 (en) 2005-04-13
EP1250482B2 EP1250482B2 (en) 2009-06-10

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ID=26003888

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01911482A Not-in-force EP1250482B2 (en) 2000-01-17 2001-01-13 Method and device for production of composite non-woven fibre fabrics by means of hydrodynamic needling

Country Status (10)

Country Link
US (1) US6836938B2 (en)
EP (1) EP1250482B2 (en)
CN (1) CN1395635B (en)
AT (1) AT293180T (en)
BR (1) BR0107640B1 (en)
CA (1) CA2392835C (en)
EA (1) EA004031B1 (en)
ES (1) ES2240423T5 (en)
IL (1) IL150636D0 (en)
WO (1) WO2001053588A2 (en)

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EP0796940B1 (en) * 1995-10-06 2003-02-26 Nippon Petrochemicals Co., Ltd. Water jet intertwined nonwoven cloth and method of manufacturing the same
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US6177370B1 (en) * 1998-09-29 2001-01-23 Kimberly-Clark Worldwide, Inc. Fabric
DE19927785C2 (en) 1999-06-18 2003-02-20 Sandler Ag Textile composite with high textile softness and improved layer adhesion
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US6592713B2 (en) * 2000-12-18 2003-07-15 Sca Hygiene Products Ab Method of producing a nonwoven material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1748101A2 (en) * 2005-07-26 2007-01-31 Fleissner GmbH Bulky fibrous laminate and its making
DE102005034821A1 (en) * 2005-07-26 2007-02-08 Fleissner Gmbh Voluminous fiber laminates and their production
EP1748101A3 (en) * 2005-07-26 2008-07-09 Fleissner GmbH Bulky fibrous laminate and its making

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CA2392835C (en) 2008-05-27
BR0107640B1 (en) 2011-07-12
BR0107640A (en) 2002-10-08
CA2392835A1 (en) 2001-07-26
WO2001053588A3 (en) 2002-04-25
EP1250482B2 (en) 2009-06-10
WO2001053588A2 (en) 2001-07-26
CN1395635A (en) 2003-02-05
CN1395635B (en) 2010-09-29
IL150636D0 (en) 2003-02-12
ES2240423T5 (en) 2009-11-13
AT293180T (en) 2005-04-15
EP1250482A2 (en) 2002-10-23
US20030106195A1 (en) 2003-06-12
US6836938B2 (en) 2005-01-04
EA004031B1 (en) 2003-12-25
EA200200772A1 (en) 2003-02-27
ES2240423T3 (en) 2005-10-16

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