WO2003060213A2 - Method and device for the production of a glass wool sheet material - Google Patents

Method and device for the production of a glass wool sheet material Download PDF

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Publication number
WO2003060213A2
WO2003060213A2 PCT/AT2003/000017 AT0300017W WO03060213A2 WO 2003060213 A2 WO2003060213 A2 WO 2003060213A2 AT 0300017 W AT0300017 W AT 0300017W WO 03060213 A2 WO03060213 A2 WO 03060213A2
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WO
WIPO (PCT)
Prior art keywords
web
sheet
glass wool
cut
layers
Prior art date
Application number
PCT/AT2003/000017
Other languages
German (de)
French (fr)
Other versions
WO2003060213A3 (en
Inventor
Franz Brunhuber
Original Assignee
Saint-Gobain Isover Austria Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Saint-Gobain Isover Austria Ag filed Critical Saint-Gobain Isover Austria Ag
Priority to AU2003205412A priority Critical patent/AU2003205412A1/en
Publication of WO2003060213A2 publication Critical patent/WO2003060213A2/en
Publication of WO2003060213A3 publication Critical patent/WO2003060213A3/en

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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
    • 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
    • D04H1/42—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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4218—Glass fibres
    • 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
    • D04H1/42—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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4218—Glass fibres
    • D04H1/4226—Glass fibres characterised by the apparatus for manufacturing the glass fleece

Definitions

  • the invention relates to a method for producing a glass wool sheet material, according to which the glass wool is formed into a sheet of predetermined thickness, cut to length and wound into a roll and optionally packaged, and to an apparatus for carrying out the method.
  • Each system for the production of glass wool web materials is designed for a certain production capacity, which corresponds to an optimal web thickness with a constant web width. If a web is to be produced with less than the optimal thickness, the line speed must be increased in order to utilize the production capacity. However, this has an upper limit, since the glass fiber distribution in the web produced becomes uneven if the speed is too high. If thinner than optimally thick webs are therefore to be produced, the production capacity can generally not be used in an existing system, which is a technical and economic disadvantage.
  • the aim of the invention is a method and a device according to which any thicknesses of glass wool web materials can be manufactured under always optimal production conditions.
  • This aim is achieved according to the invention with a method of the type mentioned at the outset in that the web is cut in the longitudinal direction before being cut to length to form at least two layers with preferably the same thickness and is wound up in the cut state.
  • the production capacity can be increased be used in each case. Since in the course of the winding (and possibly simultaneous) packaging of the pieces cut from the endless web, the web thickness is compressed, the layers which are separated per se are pressed together to such an extent that they adhere to one another like a Velcro connection.
  • This has the advantage that the glass fiber web pieces can be used either in full thickness or in partial thicknesses, ie in the form of individual layers. In the latter case, the individual layers (two or more, each with the same thickness or with different thicknesses) can be separated from one another in a simple manner by subtraction.
  • a device consisting of a web production system is suitable for carrying out the method according to the invention, which is followed by at least one hardening furnace, a cutting device and a winding and possibly packaging device in the direction of travel of the web.
  • a cutting device passing through the web is provided between the hardening furnace and the cutting device.
  • the design of the cutting device can be conventional - the easiest is a band saw.
  • the compression proposed in terms of the method can be carried out in accordance with the invention by a device in which a compression device is arranged in front of the winding and possibly packaging device.
  • Compression devices as such are known in different designs.
  • a narrowing gap is sufficient, which is formed between two endless conveyor belts, the glass wool web or the piece cut to length resting on one of the belts.
  • a hardening furnace 1 is connected to the web production plant (not shown). This is a trimming device 2, one the web penetrating cutting device 3, a cutting device 4, a compression device 5 and a winding and packaging device 6 in series.
  • a glass wool web 7 of a predetermined thickness emerging continuously from the hardening furnace 1 is trimmed laterally by the trimming device 2 and then separated by the cutting device 3, for example in two layers 7a, 7b with the same thickness. The number of layers cut and their thickness can, however, be selected as required.
  • the web 7 cut into layers 7a, 7b is then cut to a predetermined length in the cutting device 4.
  • the cut-to-length pieces of the layers 7a, 7b located one on top of the other are then pushed into the compression device 5, in which the total thickness of the layers 7a, 7b is reduced and an intensive interlacing or quasi matting of the intersecting interfaces of the double-cut layers 7a, 7b takes place ,
  • the separated web piece is then wound up in the winding and packaging device 6 and packaged at the same time.
  • the compression device 5 can also be omitted, since the layers 7a, 7b are compressed by the winding process alone and thus an adequate adhesive bond between their two interfaces.
  • the separate, but releasably adhering layers 7a, 7b can be used at the place of their use (i.e. generally for insulation purposes) either together or separately after peeling them off.
  • the method according to the invention and the device suitable therefor thus ensure not only a more productive production of glass wool webs, but also a better variability in their use.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Textile Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Buffer Packaging (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Paper (AREA)

Abstract

Disclosed is a device for producing a glass wool sheet material, comprising a length-reducing cutting device (4) and a coiling device (6) following a hardening furnace (1) in the direction of movement of the sheet (7). As an option, the coiled roll can also be packaged in the coiling device (6). In order to obtain high production speeds with a predefined thickness of the sheet (7) even when thin materials are produced, the sheet (7) is separated into two or several layers (7a, 7b) by a cutting device (3) running through said sheet (7). Said layers (7a, 7b) are coiled jointly, optionally after being compressed in a compressing device (5).

Description

Verfahren und Vorrichtung zur Herstellung eines Glaswollebahnmaterials. Method and device for producing a glass wool sheet material.
Die Erfindung bezieht sich auf ein Verfahren zur Herstellung eines Glaswollebahnmaterials, gemäß welchem die Glaswolle zu einer Bahn vorbestimmter Dicke geformt, diese abgelängt sowie zu einer Rolle aufgewickelt und gegebenenfalls verpackt wird, sowie auf eine Vorrichtung zur Durchführung des Verfahrens.The invention relates to a method for producing a glass wool sheet material, according to which the glass wool is formed into a sheet of predetermined thickness, cut to length and wound into a roll and optionally packaged, and to an apparatus for carrying out the method.
Verfahren und Vorrichtungen zur Herstellung und Verpackung von Glaswollebahnen sind hinlänglich bekannt. ZB wird gemäß der GB 1 414 596 die hergestellte Bahn in Längsrichtung in zwei Lagen geschnitten, die getrennt aufgewickelt werden; gemäß der US 2 684 107 wird die Bahn dagegen zunächst komprimiert und danach zick-zack-gefaltet.Methods and devices for the production and packaging of glass wool sheets are well known. For example, according to GB 1 414 596, the web produced is cut lengthwise in two layers, which are wound up separately; however, according to US 2,684,107, the web is first compressed and then zigzag folded.
Jede Anlage zur Herstellung von Glaswollebahnmaterialien ist für eine bestimmte Produktionskapazität ausgelegt, welcher bei gleichbleibender Bahnbreite eine optimale Dicke der Bahn entspricht. Soll eine Bahn mit geringerer als der optimalen Dicke hergestellt werden, muß zur Ausnutzung der Produktionskapazität die Liniengeschwindigkeit, gesteigert werden. Diese ist aber nach oben begrenzt, da bei zu hoher Geschwindigkeit die Glasfaserverteilung in der hergestellten Bahn ungleich wird. Sollen daher dünnere als optimal dicke Bahnen hergestellt werden, kann bei bestehender Anlage in der Regel die Produktionskapazität nicht ausgenützt werden, was technisch und wirtschaftlich von Nachteil ist.Each system for the production of glass wool web materials is designed for a certain production capacity, which corresponds to an optimal web thickness with a constant web width. If a web is to be produced with less than the optimal thickness, the line speed must be increased in order to utilize the production capacity. However, this has an upper limit, since the glass fiber distribution in the web produced becomes uneven if the speed is too high. If thinner than optimally thick webs are therefore to be produced, the production capacity can generally not be used in an existing system, which is a technical and economic disadvantage.
Ziel der Erfindung ist ein Verfahren und eine Vorrichtung, gemäß welchen beliebige Dicken von Glaswollebahnmaterialien bei stets optimalen Produktionsbedingungen gefertigt werden können.The aim of the invention is a method and a device according to which any thicknesses of glass wool web materials can be manufactured under always optimal production conditions.
Dieses Ziel wird mit einem Verfahren der eingangs genannten Art erfϊndungsgemäß dadurch erreicht, dass die Bahn vor dem Ablängen unter Bildung von wenigstens zwei Lagen mit vorzugsweiser gleicher Dicke in Längsrichtung durchschnitten und im durchschnittenen Zustand aufgewickelt wird.This aim is achieved according to the invention with a method of the type mentioned at the outset in that the web is cut in the longitudinal direction before being cut to length to form at least two layers with preferably the same thickness and is wound up in the cut state.
Dadurch, dass die Glaswollebahn zunächst in einer optimalen Dicke produziert und erst danach in zwei oder mehrere Lagen durchschnitten wird, kann die Produktionskapazität jeweils ausgenützt werden. Da im Zuge des Aufwickelns (und eventuell gleichzeitigen) Verpackens der von der endlosen Bahn abgeschnittenen Stücke eine Komprimierung der Bahndicke erfolgt, werden die an sich getrennten Lagen soweit zusammengedrückt, dass sie ähnlich einer Klettverbindung aneinander haften. Dies hat den Vorteil, dass die Glasfaserbahnstücke entweder in voller Dicke oder in Teildicken, d.h. in Form einzelner Lagen, zum Einsatz kommen können. Im letztgenannten Fall können die einzelnen Lagen (zwei oder mehrere, mit jeweils gleicher Dicke oder mit ungleichen Dicken) in einfacher Weise durch Abziehen voneinander getrennt werden.Because the glass wool web is initially produced in an optimal thickness and only then cut into two or more layers, the production capacity can be increased be used in each case. Since in the course of the winding (and possibly simultaneous) packaging of the pieces cut from the endless web, the web thickness is compressed, the layers which are separated per se are pressed together to such an extent that they adhere to one another like a Velcro connection. This has the advantage that the glass fiber web pieces can be used either in full thickness or in partial thicknesses, ie in the form of individual layers. In the latter case, the individual layers (two or more, each with the same thickness or with different thicknesses) can be separated from one another in a simple manner by subtraction.
Um eine sichere Haftung der einzelnen Lagen zu gewährleisten, ist es zweckmäßig, wenn die Bahn vor dem Aufwickeln komprimiert wird.In order to ensure reliable adhesion of the individual layers, it is advisable to compress the web before winding it up.
Zur Durchführung des erfindungsgemäßen Verfahrens eignet sich eine Vorrichtung, bestehend aus einer Bahnherstellungsanlage, welcher in Durchlaufrichtung der Bahn wenigstens ein Härteofen, eine Ablängeinrichtung sowie eine Wickel- und gegebenenfalls Verpackungseinrichtung nachgereiht sind. Bei dieser ist im Einklang mit der Erfindung zwischen dem Härteofen und der Ablängeinrichtung eine die Bahn durchsetzende Schneideinrichtung vorgesehen. Die Bauweise der Schneideinrichtung kann herkömmlich sein - am einfachsten ist eine Bandsäge.A device consisting of a web production system is suitable for carrying out the method according to the invention, which is followed by at least one hardening furnace, a cutting device and a winding and possibly packaging device in the direction of travel of the web. In accordance with the invention, a cutting device passing through the web is provided between the hardening furnace and the cutting device. The design of the cutting device can be conventional - the easiest is a band saw.
Das verfahrensmäßig vorgeschlagene Komprimieren kann im Einklang mit der Erfindung durch eine Vorrichtung erfolgen, bei der vor der Wickel- und gegebenenfalls Verpackungseinrichtung eine Komprimiereinrichtung angeordnet ist.The compression proposed in terms of the method can be carried out in accordance with the invention by a device in which a compression device is arranged in front of the winding and possibly packaging device.
Komprimiereinrichtungen als solches sind in unterschiedlichen Bauweisen bekannt. Im einfachsten Fall reicht ein sich verengender Spalt aus, der zwischen zwei endlosen Transportbändern gebildet wird, wobei die Glaswollebahn bzw. das von dieser abgelängte Stück auf einem der Bänder aufliegt.Compression devices as such are known in different designs. In the simplest case, a narrowing gap is sufficient, which is formed between two endless conveyor belts, the glass wool web or the piece cut to length resting on one of the belts.
Die Erfindung wird im folgenden anhand eines in der Zeichnung prinzipiell veranschaulichten Ausführungsbeispieles der Vorrichtung näher erläutert. In der Zeichnung ist der für das Verständnis der Erfindung maßgebende Teil der Vorrichtung in Schrägansicht dargestellt. An die (nicht dargestellte) Bahnherstellungsanlage ist ein Härteofen 1 angeschlossen. Diesem ist eine Besäumungseinrichtung 2, eine die Bahn durchsetzende Schneideinrichtung 3, eine Ablängeinrichtung 4, eine Komprimiereinrichtung 5 sowie eine Wickel- und Verpackungeinrichtung 6 nachgereiht. Eine aus dem Härteofen 1 endlos austretende Glaswollebahn 7 vorbestimmter Dicke wird durch die Besäumungseinrichtung 2 seitlich beschnitten und anschließend durch die Schneideinrichtung 3 beispielsweise in zwei Lagen 7a, 7b mit gleicher Dicke getrennt. Die Anzahl der durchgeschnittenen Lagen sowie deren Dicken können jedoch je nach Bedarf gewählt werden. Die in Lagen 7a, 7b zerschnittene Bahn 7 wird sodann in der Ablängeinrichtung 4 auf eine vorgegebene Länge geschnitten. Danach werden die abgelängten Stücke der aufeinander befindlichen Lagen 7a, 7b in die Komprimiereinrichtung 5 geschoben, in der die Gesamtdicke der Lagen 7a, 7b verringert wird und eine intensive Verflechtung bzw. quasi Verfilzung der aufeinander treffenden Grenzflächen der duι-chschnittenen Lagen 7a, 7b erfolgt. Anschließend wird das abgetrennte Bahnstück in der Wickel- und Ve ackungseinrichtung 6 aufgewickelt und gleichzeitig verpackt. Die Komprimiereinrichtung 5 kann auch weggelassen werden, da durch den Wickelvorgang alleine eine Komprimierung der Lagen 7a, 7b und damit eine ausreichende Haftverbindung ihrer beider Grenzflächen erfolgt.The invention is explained below with reference to an embodiment of the device illustrated in principle in the drawing. In the drawing, the part of the device which is decisive for understanding the invention is shown in an oblique view. A hardening furnace 1 is connected to the web production plant (not shown). This is a trimming device 2, one the web penetrating cutting device 3, a cutting device 4, a compression device 5 and a winding and packaging device 6 in series. A glass wool web 7 of a predetermined thickness emerging continuously from the hardening furnace 1 is trimmed laterally by the trimming device 2 and then separated by the cutting device 3, for example in two layers 7a, 7b with the same thickness. The number of layers cut and their thickness can, however, be selected as required. The web 7 cut into layers 7a, 7b is then cut to a predetermined length in the cutting device 4. The cut-to-length pieces of the layers 7a, 7b located one on top of the other are then pushed into the compression device 5, in which the total thickness of the layers 7a, 7b is reduced and an intensive interlacing or quasi matting of the intersecting interfaces of the double-cut layers 7a, 7b takes place , The separated web piece is then wound up in the winding and packaging device 6 and packaged at the same time. The compression device 5 can also be omitted, since the layers 7a, 7b are compressed by the winding process alone and thus an adequate adhesive bond between their two interfaces.
Die getrennten, aber aneinander lösbar haftenden Lagen 7a, 7b können am Ort ihrer Verwendung (d.i. in der Regel zu Dämmzwecken) entweder gemeinsam oder nach Abziehen voneinander separat eingesetzt werden. Das erfindungsgemäße Verfahren und die hiefur geeignete Vorrichtung gewährleisten somit nicht nur eine produktivere Herstellung von Glaswollebahnen, sondern auch eine bessere Variabilität ihrer Verwendung. The separate, but releasably adhering layers 7a, 7b can be used at the place of their use (i.e. generally for insulation purposes) either together or separately after peeling them off. The method according to the invention and the device suitable therefor thus ensure not only a more productive production of glass wool webs, but also a better variability in their use.

Claims

Patentansprüche: claims:
1. Verfahren zur Herstellung eines Glaswollebahnmaterials, gemäß welchem die Glaswolle zu einer Bahn vorbestimmter Dicke geformt, diese abgelängt sowie zu einer Rolle aufgewickelt und gegebenenfalls verpackt wird, dadurch gekennzeichnet, dass die Bahn (7) vor dem Ablängen unter Bildung von wenigstens zwei Lagen (7a, 7b) mit vorzugsweiser gleicher Dicke in Längsrichtung durchschnitten und im durchschnittenen Zustand aufgewickelt wird.1. A method for producing a glass wool sheet material, according to which the glass wool is formed into a sheet of predetermined thickness, cut to length and wound into a roll and optionally packed, characterized in that the sheet (7) before being cut to form at least two layers ( 7a, 7b) is preferably cut with the same thickness in the longitudinal direction and wound up in the cut state.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Bahn vor dem Aufwickeln komprimiert wird.2. The method according to claim 1, characterized in that the web is compressed before winding.
3. Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1, bestehend aus einer Bahnherstellungsanlage, welcher in Durchlaufrichtung der Bahn wenigstens ein3. A device for performing the method according to claim 1, consisting of a web production system, which in the direction of the web at least one
Härteofen, eine Ablängeinrichtung sowie eine Wickel- und gegebenenfalls Verpackungseinrichtung nachgereiht sind, dadurch gekennzeichnet, dass zwischen dem Härteofen (1) und der Ablängeinrichtung (4) eine die Bahn (7) durchsetzende Schneideinrichtung (3) vorgesehen ist.Hardening furnace, a cutting device and a winding and possibly packaging device are arranged in series, characterized in that a cutting device (3) passing through the web (7) is provided between the curing oven (1) and the cutting device (4).
4. Vorrichtung nach Anspruch 3 zur Durchführung des Verfahrens nach Anspruch 2, dadurch gekennzeichnet, dass vor der Wickel- und gegebenenfalls Verpackungseinrichtung (6) eine Komprimiereinrichtung (5) angeordnet ist. 4. The device according to claim 3 for performing the method according to claim 2, characterized in that a compression device (5) is arranged in front of the winding and optionally packaging device (6).
PCT/AT2003/000017 2002-01-17 2003-01-17 Method and device for the production of a glass wool sheet material WO2003060213A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003205412A AU2003205412A1 (en) 2002-01-17 2003-01-17 Method and device for the production of a glass wool sheet material

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0007202A AT411244B (en) 2002-01-17 2002-01-17 METHOD AND DEVICE FOR THE PRODUCTION OF A GLASS WOOL MATERIAL
ATA72/2002 2002-01-17

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WO2003060213A2 true WO2003060213A2 (en) 2003-07-24
WO2003060213A3 WO2003060213A3 (en) 2003-12-24

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2652728C1 (en) * 2016-07-06 2018-04-28 Закрытое акционерное общество "Минеральная Вата" Method for thermal insulation of building surface and appropriate heat-insulating board

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2340486A1 (en) * 1972-08-10 1974-02-21 Rockwool A Separation of solids from suspension - esp airborne mineral fibres, using the layer already formed as an additional filter
GB1414596A (en) * 1973-02-27 1975-11-19 Johns Manville Two-level production line assembly with mechanism for inverting the product transported on the upper level
US3964235A (en) * 1973-11-02 1976-06-22 Owens-Corning Fiberglas Corporation Roll-up compressive packaging apparatus
EP0336912A2 (en) * 1988-03-31 1989-10-11 Rockwool Aktiebolaget Method and apparatus for processing a mineral wool path
WO1995020708A1 (en) * 1994-01-28 1995-08-03 Rockwool International A/S Insulating element and method and plant for producing and packaging
WO1996002695A1 (en) * 1994-07-18 1996-02-01 Owens Corning Bicomponent and long fiber product definition for splittable pack

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2684107A (en) * 1952-05-20 1954-07-20 Owens Corning Fiberglass Corp Method and apparatus for processing fibrous materials

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2340486A1 (en) * 1972-08-10 1974-02-21 Rockwool A Separation of solids from suspension - esp airborne mineral fibres, using the layer already formed as an additional filter
GB1414596A (en) * 1973-02-27 1975-11-19 Johns Manville Two-level production line assembly with mechanism for inverting the product transported on the upper level
US3964235A (en) * 1973-11-02 1976-06-22 Owens-Corning Fiberglas Corporation Roll-up compressive packaging apparatus
EP0336912A2 (en) * 1988-03-31 1989-10-11 Rockwool Aktiebolaget Method and apparatus for processing a mineral wool path
WO1995020708A1 (en) * 1994-01-28 1995-08-03 Rockwool International A/S Insulating element and method and plant for producing and packaging
WO1996002695A1 (en) * 1994-07-18 1996-02-01 Owens Corning Bicomponent and long fiber product definition for splittable pack

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ATA722002A (en) 2003-04-15
AU2003205412A8 (en) 2003-07-30
AU2003205412A1 (en) 2003-07-30
WO2003060213A3 (en) 2003-12-24
AT411244B (en) 2003-11-25

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