EP1250482B2 - 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 PDFInfo
- Publication number
- EP1250482B2 EP1250482B2 EP01911482A EP01911482A EP1250482B2 EP 1250482 B2 EP1250482 B2 EP 1250482B2 EP 01911482 A EP01911482 A EP 01911482A EP 01911482 A EP01911482 A EP 01911482A EP 1250482 B2 EP1250482 B2 EP 1250482B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- web
- layer
- woven fabric
- bonded
- spunlacing
- 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.)
- Expired - Lifetime
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000002131 composite material Substances 0.000 title claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 239000004744 fabric Substances 0.000 title description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000003490 calendering Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 229920001131 Pulp (paper) Polymers 0.000 claims 4
- 239000002250 absorbent Substances 0.000 claims 3
- 238000009960 carding Methods 0.000 claims 2
- 239000004745 nonwoven fabric Substances 0.000 abstract description 19
- 238000001035 drying Methods 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 238000010924 continuous production Methods 0.000 abstract 1
- 238000005728 strengthening Methods 0.000 abstract 1
- 238000007711 solidification Methods 0.000 description 5
- 230000008023 solidification Effects 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
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
- D04H18/00—Needling machines
- D04H18/04—Needling machines with water jets
-
- 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
- D04H1/44—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/48—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 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
- D04H1/49—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 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
-
- 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
- D04H1/44—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/498—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 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
-
- 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
- D04H1/74—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 the fibres being orientated, e.g. in parallel (anisotropic fleeces)
-
- 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
- D04H13/00—Other non-woven fabrics
-
- 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
- D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
- D04H5/02—Non 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
- D04H5/03—Non 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
-
- 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
- D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
- D04H5/08—Non 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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Durch die
Es konnte festgestellt werden, dass all diese Herstellungsarten von Vliesprodukten den Bedingungen in der Praxis nicht gerecht werden. Insbesondere die Pillingneigung der Verbundvliese wurde beklagt, und zwar auch der Außenseite des Endlosfaservlieses.It has been found that all these types of nonwoven fabric production do not meet practical conditions. In particular, the Pillingneigung the composite nonwovens was complained, including the outside of the continuous fiber fleece.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren und die dazu gehörige Vorrichtung zu finden, mit dem diese leichte Oberflächenverschleißfähigkeit verbessert wird und dennoch eine gute Bindung der Pulpfasern im Trägervlies erzielbar ist. Außerdem ist darauf zu achten, dass die aufgegebene Pulpschicht beim wirkungsvollen Verbinden mit dem Trägervlies nicht oder wenig verloren gehen.The invention has for its object to find a method and the associated device, with which this easy Oberflächenverschleißfähigkeit is improved and yet a good binding of the pulp fibers in the carrier fabric can be achieved. In addition, care must be taken that the pulp layer applied does not lose or lose a little when effectively bonded to the carrier fleece.
Gelöst wird die Aufgabe durch ein Verfahren nach Anspruch 1 sowie eine Vorrichtung nach Anspruch 4. So ist vorgesehen, dass das Spunbondvlies vor der Beschichtung mit dem superabsorbierenden Material zur Vorverfestigung kalandriert wird, dann die Woodpulpschicht mit einer Krempelvliesschicht aufgegeben und dies zusammen mit einer hydrodynamischen Wasservernadelung verfestigt und dann getrocknet wird. Die Verfestigung des Kalandrierens des Endlosfaservlieses vor der Weiterverarbeitung verbessert nicht nur die Abriebfestigkeit des Endproduktes, sondern vermindert auch einen Pulpverlust beim Wasservernadein in und durch das Vlies hindurch. Es ist aber zu beachten, dass diese Kalandrierung nicht zu stark erfolgt. Ist die Verfestigung zu hoch, sind die Bindepunkte zu vielfältig, dann ist eine Verbindung der Pulpschicht durch die Wasservernadelung mit dem kalandrierten Vlies erschwert. Aus diesem Grunde kann zur Besserung der Pillingneigung das Vlies am Ende des Bindeverfahrens nach dem Trocknen noch einmal kalandriert werden, wodurch eine feste Einbindung aller Oberflächenfasern erreichbar ist. Im Falle eines Vliesproduktes mit nur einer Spunbondschicht braucht nur die Walze aufgeheizt zu werden, die der Spunbondschicht benachbart ist.The object is achieved by a method according to claim 1 and an apparatus according to claim 4. It is provided that the spunbonded nonwoven is calendered prior to coating with the superabsorbent material for preconsolidation, then abandoned the Woodpulpschicht with a carded web layer and this together with a hydrodynamic water needling solidified and then dried. Solidification of the calendering of the continuous fiber web prior to further processing not only improves the abrasion resistance of the final product, but also reduces pulp loss in the water kernel in and through the web. It should be noted, however, that this calendering is not too strong. If the solidification is too high, the bonding points are too varied, then a connection of the pulp layer by the water needling with the calendered web is difficult. For this reason, to improve the Pillingneigung the fleece at the end of the binding process after drying can be calendered again, whereby a solid involvement of all surface fibers can be achieved. In the case of a nonwoven product with only one spunbond layer, only the roller adjacent to the spunbond layer needs to be heated.
Es ist festzuhalten, dass die Pulpschicht bei diesem Herstellungsverfahren hydrodynamisch mit dem Vlies verbunden wird, ansonsten kann das Produkt wegen einer Schichtbildung in der Praxis nicht bestehen. Erfindungsgemäß ist vorgesehen, wenn auf die Pulpschicht ein weiteres vorverfestigtes Krempelvlies aufgegeben wird und erst die drei Schichten gemeinsam hydrodynamisch vernadelt werden. Auch dann ist eine Endkalandrierung von Vorteil.It should be noted that the pulp layer is hydrodynamically bonded to the web in this manufacturing process, otherwise the product can not be used in practice because of film formation. According to the invention, it is provided that a further preconsolidated carded web is applied to the pulp layer and only the three layers are needled together hydrodynamically. Even then, a final calendering is an advantage.
Eine entsprechende Vorrichtung zur Durchführung des Verfahrens ist in der Zeichnung schematisch dargestellt: Es zeigen:
- Fig. 1
- In der Seitenansicht eine Kontinueanlage zur Herstellung eines Verbundvlieses nur mit einer Trägerunterlage, welche nicht unter Anspruch 1 bzw. 4 fällt,
- Fig. 2
- ebenfalls in der Seitenansicht die Anlage nach
Fig. 1 ergänzt durch die Zuführung einer zusätzlichen Deckschicht aus einem Endlosfaservlies vor der Wasservernadelung.
- Fig. 1
- In the side view, a continuous system for the production of a composite nonwoven with only a carrier pad, which does not fall under claim 1 or 4,
- Fig. 2
- likewise in the side view the plant after
Fig. 1 supplemented by the supply of an additional cover layer of a continuous fiber fleece before the water needling.
Die aus der Vorrichtung 1, die im wesentlichen bekannt ist und im einzelnen nicht dargestellt zu werden braucht, kontinuierlich austretenden Endlosfasern 2 treffen auf das unten vorlaufende Endlosband 3, das in Richtung des Pfeils 4 vorläuft. Diesem Endlosband 3 ist ein Kalanderwerk 5 zugeordnet, das je nach Wunsch mit Energie und Wärme ein ggf. auch fein geprägtes verfestigtes Vlies liefert. Die Verfestigungswirkung sollte nur gering sein, damit der Pulp mittels der Vernadelung noch eine innige Verbindung mit dem Endlosfaservlies eingeht. Nach diesem Verfahrensschritt erfolgt wie bekannt die Aufgabe der Pulpfaser z. B. mit einer Vorrichtung 6 nach der
Die Kontinueanlage nach
Claims (4)
- Process for fabrication of a composite web from at least one spunbond web as carrier web and a layer of woodpulp applied onto this carrier web to obtain a hygiene product in which, before applying the super-absorbent material, the spunbond web is consolidated by calendering in dry condition for initial bonding, while the woodpulp layer is applied afterwards,
and before the step of spunlace bonding, the two-part composite web is provided with a cover layer on top of the super-absorbent material,
with the cover layer consisting of a pre-bonded calendered carding web,
and everything together is bonded by hydrodynamic spunlacing and subsequently dried. - Process in conformity with claim 1,
characterized in that pre-bonding like calendering is done before spunlacing, with the fibers of the carrier web being only slightly bonded. - Process in conformity with one of claims 1-2,
characterized in that
the dried composite web is calendered again, but with a higher energy. - Device for producing a hygiene product from a spunbond web with a super-absorbent material layer and carrying out a process in conformity with one of claims 1-3, consisting ofa) a spunbonding device (1, 2; 10; 1'-4'),b) an calendering device (5, 11),e) an immediately following device (6) for applying a woodpulp layer onto the pre-bonded carrier web,f) a spunlacing system whose water jets are directed onto the woodpulp layer,g) a dryer (8, 9)h) possibly another calendering device,while, for the formation of a top layer,c) a carding device (10) is placed in front of the hydrodynamic spunlacing device (1, 2, 5),d) followed by a calendering device (11) as bonding device before the spunlacing device (13, 14).
Priority Applications (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 |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10001723 | 2000-01-17 | ||
DE10001723 | 2000-01-17 | ||
DE10004448A 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 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1250482A2 EP1250482A2 (en) | 2002-10-23 |
EP1250482B1 EP1250482B1 (en) | 2005-04-13 |
EP1250482B2 true EP1250482B2 (en) | 2009-06-10 |
Family
ID=26003888
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01911482A Expired - Lifetime 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) | ATE293180T1 (en) |
BR (1) | BR0107640B1 (en) |
CA (1) | CA2392835C (en) |
EA (1) | EA004031B1 (en) |
ES (1) | ES2240423T5 (en) |
IL (1) | IL150636A0 (en) |
WO (1) | WO2001053588A2 (en) |
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DE10126515A1 (en) * | 2001-05-30 | 2002-12-05 | Fleissner Gerold | Process for consolidating a web of wood pulp |
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US20050091811A1 (en) * | 2003-10-31 | 2005-05-05 | Sca Hygiene Products Ab | Method of producing a nonwoven material |
US7422660B2 (en) * | 2003-10-31 | 2008-09-09 | Sca Hygiene Products Ab | Method of producing a nonwoven material |
US7858544B2 (en) | 2004-09-10 | 2010-12-28 | First Quality Nonwovens, Inc. | Hydroengorged spunmelt nonwovens |
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US8250719B2 (en) * | 2009-03-03 | 2012-08-28 | The Clorox Company | Multiple layer absorbent substrate and method of formation |
US10639212B2 (en) | 2010-08-20 | 2020-05-05 | The Procter & Gamble Company | Absorbent article and components thereof having improved softness signals, and methods for manufacturing |
BR112013002433A2 (en) | 2010-08-20 | 2016-05-24 | First Quality Nonwovens Inc | absorbent article and components thereof exhibiting signs of optimized softness, and methods for its manufacture. |
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EP0678128B1 (en) * | 1993-01-07 | 1996-09-25 | Minnesota Mining And Manufacturing Company | Flexible nonwoven mat |
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SE9703886L (en) * | 1997-10-24 | 1999-04-25 | Sca Hygiene Paper Ab | Method of making a nonwoven material and made according to the method |
US6177370B1 (en) * | 1998-09-29 | 2001-01-23 | Kimberly-Clark Worldwide, Inc. | Fabric |
DE10008746A1 (en) * | 2000-02-24 | 2001-08-30 | Fleissner Maschf Gmbh Co | Method and device for producing composite nonwovens by means of hydrodynamic needling |
US6592713B2 (en) * | 2000-12-18 | 2003-07-15 | Sca Hygiene Products Ab | Method of producing a nonwoven material |
-
2001
- 2001-01-13 EP EP01911482A patent/EP1250482B2/en not_active Expired - Lifetime
- 2001-01-13 AT AT01911482T patent/ATE293180T1/en not_active IP Right Cessation
- 2001-01-13 US US10/149,152 patent/US6836938B2/en not_active Expired - Lifetime
- 2001-01-13 BR BRPI0107640-0A patent/BR0107640B1/en not_active IP Right Cessation
- 2001-01-13 ES ES01911482T patent/ES2240423T5/en not_active Expired - Lifetime
- 2001-01-13 CN CN01803783.6A patent/CN1395635B/en not_active Expired - Fee Related
- 2001-01-13 EA EA200200772A patent/EA004031B1/en not_active IP Right Cessation
- 2001-01-13 IL IL15063601A patent/IL150636A0/en unknown
- 2001-01-13 WO PCT/EP2001/000383 patent/WO2001053588A2/en active IP Right Grant
- 2001-01-13 CA CA002392835A patent/CA2392835C/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US3620903A (en) † | 1962-07-06 | 1971-11-16 | Du Pont | Lightweight nonpatterned nonwoven fabric |
US4808467A (en) † | 1987-09-15 | 1989-02-28 | James River Corporation Of Virginia | High strength hydroentangled nonwoven fabric |
EP0830470B1 (en) † | 1995-06-07 | 2002-11-06 | Kimberly-Clark Worldwide, Inc. | Hydroentangled nonwoven composites |
DE19927785C2 (en) † | 1999-06-18 | 2003-02-20 | Sandler Ag | Textile composite with high textile softness and improved layer adhesion |
Also Published As
Publication number | Publication date |
---|---|
ATE293180T1 (en) | 2005-04-15 |
IL150636A0 (en) | 2003-02-12 |
EP1250482A2 (en) | 2002-10-23 |
EA200200772A1 (en) | 2003-02-27 |
ES2240423T5 (en) | 2009-11-13 |
EP1250482B1 (en) | 2005-04-13 |
CA2392835C (en) | 2008-05-27 |
BR0107640B1 (en) | 2011-07-12 |
CN1395635A (en) | 2003-02-05 |
CA2392835A1 (en) | 2001-07-26 |
ES2240423T3 (en) | 2005-10-16 |
US20030106195A1 (en) | 2003-06-12 |
BR0107640A (en) | 2002-10-08 |
WO2001053588A2 (en) | 2001-07-26 |
EA004031B1 (en) | 2003-12-25 |
CN1395635B (en) | 2010-09-29 |
WO2001053588A3 (en) | 2002-04-25 |
US6836938B2 (en) | 2005-01-04 |
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