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EP1533262B1 - Method for winding a material web - Google Patents

Method for winding a material web Download PDF

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Publication number
EP1533262B1
EP1533262B1 EP03405823A EP03405823A EP1533262B1 EP 1533262 B1 EP1533262 B1 EP 1533262B1 EP 03405823 A EP03405823 A EP 03405823A EP 03405823 A EP03405823 A EP 03405823A EP 1533262 B1 EP1533262 B1 EP 1533262B1
Authority
EP
European Patent Office
Prior art keywords
web
winding core
winding
gel
water
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
Application number
EP03405823A
Other languages
German (de)
French (fr)
Other versions
EP1533262A1 (en
Inventor
Michael Mcgreal
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.)
3A Composites International AG
Original Assignee
Alcan Technology and Management Ltd
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
Priority to PT03405823T priority Critical patent/PT1533262E/en
Priority to DK03405823T priority patent/DK1533262T3/en
Priority to DE50306861T priority patent/DE50306861D1/en
Priority to ES03405823T priority patent/ES2281616T3/en
Priority to EP03405823A priority patent/EP1533262B1/en
Application filed by Alcan Technology and Management Ltd filed Critical Alcan Technology and Management Ltd
Priority to SI200330823T priority patent/SI1533262T1/en
Priority to AT03405823T priority patent/ATE357397T1/en
Publication of EP1533262A1 publication Critical patent/EP1533262A1/en
Application granted granted Critical
Publication of EP1533262B1 publication Critical patent/EP1533262B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/28—Attaching the leading end of the web to the replacement web-roll core or spindle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/41419—Starting winding process
    • B65H2301/41423—Starting winding process involving liquid, e.g. wetting core by water

Definitions

  • the invention relates to a method for winding a material web according to the preamble of claim 1.
  • the present invention is based on the object in a method of the type mentioned to set the adhesion between the material web and the winding core so that it generates during winding during the first one to two complete revolutions of the winding core sufficient adhesive force between the material web and lateral surface.
  • the adhesive force should drop sharply in a relatively short time, so that the material web unwinds easily from the core during subsequent processing.
  • the use of a gel greatly reduces the mobility of the water bound in it. This effect leads to the formation of a stress in the interface between the gel and the material web or the lateral surface of the winding core and thus to an instantaneous adhesion between the material web and the lateral surface.
  • the migration of the water from the gel into the winding core or into the material web begins and the adhesive force between the material web and the lateral surface decreases continuously.
  • At least one region of the winding core which forms the lateral surface preferably consists of cardboard or paper.
  • a hollow cylinder made of cardboard has proven.
  • the material web consists for example of a film of plastic, metal, paper or of a multilayer film of at least two layers of said materials.
  • the chemical composition of the gelling agent is of minor importance for the process according to the invention.
  • the sole purpose of the gel is to reduce the mobility of the water during the first phase of winding a web.
  • gel formers for example, fumed silica, sodium silicate and boric acid, gelatin, celluloses such as pure cellulose powder, hydroxyethyl cellulose, hydroxypropyl cellulose, etc. and starches such as corn starch, rice starch, potato starch or wheat starch can be used.
  • a gel that is as firm as possible ie a gel whose water content is smaller than its maximum possible water content, is used.
  • the webs of material wound with the method according to the invention can be automatically and uninterruptedly hung together in a continuous further processing.
  • a particular area of application of the method according to the invention relates to the winding up of material webs which are cut from a material strip in a cutting device.
  • an end 11 of a material web 10 is fastened by means of an adhesive tape 16 to the cylindrical jacket surface 14 of a winding core 12 with a cylindrical or rotational axis s.
  • the adhesive force of the adhesive tape 16 is dependent on its length.
  • the adhesive force to the lateral surface 14 of the winding core 12 may be so large that the material web does not readily dissolve during subsequent unwinding of the lateral surface, which can lead to problems especially in Autosplicing machines.
  • a gel 18 is applied to the water-based on the winding core 12 side facing the web 10 and the gel with the 18th provided end 11 is applied to the cylindrical surface 14 of the winding core 12.
  • the winding core 12 is, for example, a hollow cylinder made of cardboard and the material web is e.g. an 80 ⁇ m thick packaging film made of an aluminum / plastic composite material.
  • the water-based gel contains, for example, a mixture of sodium silicate and boric acid as gelling agent.
  • the resulting adhesion between web 10 and winding core 12 is sufficiently high that the web is taken during the first revolution of the winding core 12 of this.
  • the water migrates completely over time in the winding core 12 and the adhesive force decreases continuously.
  • the adhesive force is practically zero and the end 11 of the material web 10 firmly adhering during winding is easily detached from the lateral surface 14 of the winding core 12.

Landscapes

  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Replacement Of Web Rolls (AREA)
  • Winding Of Webs (AREA)
  • Laminated Bodies (AREA)

Abstract

The method for winding rolls of paper, plastic film or metal foil on hollow cardboard cores (12) comprises applying a patch (18) of aqueous gel-forming material to the end (11) of the sheet (10) of material. This end is then applied to the surface (14) of the core.

Description

Die Erfindung betrifft ein Verfahren zum Wickeln einer Materialbahn nach dem Oberbegriff von Anspruch 1.The invention relates to a method for winding a material web according to the preamble of claim 1.

Ein derartiges Verfahren ist beispielsweise aus US-A-3 951 890 bekannt.Such a method is known, for example, from US Pat. No. 3,951,890.

Bei bekannten Rollenschneidmaschinen wird ein von einer Bandrolle abgewickeltes Band in einer Schneideinrichtung zu Streifen oder Materialbahnen aufgeteilt. Diese Materialbahnen werden nachfolgend auf Wickelkerne gewickelt. Sobald eine Rolle ihren vorbestimmten Durchmesser erreicht hat, wird die Materialbahn von einer Bedienperson an der Maschine von der vollen Rolle abgetrennt und das neue Ende mit Hilfe eines Klebbandes an der Oberfläche eines leeren Wickelkerns fixiert. Dieses Klebband kann bei der Weiterverarbeitung der Materialbahnen auf Maschinen, bei denen eine neue Materialbahn automatisch und unterbrechungsfrei an das Ende einer abgewickelten Materialbahn angehängt wird, zu Problemen führen. Wenn beispielsweise das Klebband zu lang ist, kann es vorkommen, dass sich die Materialbahn nach vollständiger Abwicklung nicht vom Wickelkern löst, was zu einem Anhalten der Maschine und damit zu einem unerwünschten Betriebsunterbruch führt.In known slitter cutting machines unwound from a roll of tape in a cutting device is divided into strips or webs. These webs are subsequently wound on hubs. Once a roll has reached its predetermined diameter, the web is separated from the full roll by an operator on the machine and the new end is fixed to the surface of an empty roll core by means of an adhesive tape. This adhesive tape can lead to problems in the further processing of the webs on machines in which a new web is automatically and without interruption attached to the end of a developed web. For example, if the adhesive tape is too long, it may happen that the material web does not come off the winding core after complete unwinding, which leads to a stop of the machine and thus to an undesirable interruption in operation.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, bei einem Verfahren der eingangs genannten Art die Haftung zwischen Materialbahn und Wickelkern so einzustellen, dass sie beim Aufwickeln während den ersten eins bis zwei vollständigen Umdrehungen des Wickelkerns eine ausreichende Haftkraft zwischen Materialbahn und Mantelfläche erzeugt. Die Haftkraft soll in verhältnismässig kurzer Zeit stark absinken, so dass sich bei der späteren Weiterverarbeitung die Materialbahn beim Abwickeln problemlos vom Kern löst.The present invention is based on the object in a method of the type mentioned to set the adhesion between the material web and the winding core so that it generates during winding during the first one to two complete revolutions of the winding core sufficient adhesive force between the material web and lateral surface. The adhesive force should drop sharply in a relatively short time, so that the material web unwinds easily from the core during subsequent processing.

Zur erfindungsgemässen Lösung der Aufgabe führt ein Verfahren mit den Merkmalen von Anspruch 1.For the inventive solution of the problem leads a method having the features of claim 1.

Durch die Verwendung eines Gels wird die Beweglichkeit des in diesem gebundenen Wassers stark vermindert. Dieser Effekt führt zum Aufbau einer Spannung in der Grenzfläche zwischen dem Gel und der Materialbahn bzw. der Mantelfläche des Wickelkerns und damit zu einer augenblicklichen Haftung zwischen Materialbahn und Mantelfläche. Als Folge der Wasser absorbierenden Eigenschaften des Wickelkerns bzw. der Materialbahn beginnt die Migration des Wassers aus dem Gel in den Wickelkern bzw. in die Materialbahn und die Haftkraft zwischen Materialbahn und Mantelfläche nimmt kontinuierlich ab.The use of a gel greatly reduces the mobility of the water bound in it. This effect leads to the formation of a stress in the interface between the gel and the material web or the lateral surface of the winding core and thus to an instantaneous adhesion between the material web and the lateral surface. As a result of the water-absorbing properties of the winding core or of the material web, the migration of the water from the gel into the winding core or into the material web begins and the adhesive force between the material web and the lateral surface decreases continuously.

Bevorzugt besteht zumindest ein die Mantelfläche bildender Bereich des Wickelkerns aus Karton oder aus Papier. Als besonders zweckmässig hat sich ein aus Karton gefertigter Hohlzylinder erwiesen.At least one region of the winding core which forms the lateral surface preferably consists of cardboard or paper. As a particularly expedient a hollow cylinder made of cardboard has proven.

Die Materialbahn besteht beispielsweise aus einer Folie aus Kunststoff, Metall, Papier oder aus einer mehrschichtigen Folie aus wenigstens zwei Schichten der genannten Materialien.The material web consists for example of a film of plastic, metal, paper or of a multilayer film of at least two layers of said materials.

Die chemische Zusammensetzung des Gelbildners ist für das erfindungsgemässe Verfahren von untergeordneter Bedeutung. Wie oben erwähnt, hat das Gel nur die Aufgabe, während der ersten Phase des Aufwickelns einer Materialbahn die Mobilität des Wassers herabzusetzen. Als Gelbildner kann beispielsweise hochdisperses Siliziumoxid, Natriumsilikat und Borsäure, Gelatine, Cellulosen wie reines Cellulosepulver, Hydroxyethylcellulose, Hydroxypropylcellulose, etc. und Stärken wie beispielsweise Maisstärke, Reisstärke, Kartoffelstärke oder Weizenstärke eingesetzt werden.The chemical composition of the gelling agent is of minor importance for the process according to the invention. As mentioned above, the sole purpose of the gel is to reduce the mobility of the water during the first phase of winding a web. As gel formers, for example, fumed silica, sodium silicate and boric acid, gelatin, celluloses such as pure cellulose powder, hydroxyethyl cellulose, hydroxypropyl cellulose, etc. and starches such as corn starch, rice starch, potato starch or wheat starch can be used.

Verwendet wird ein möglichst festes Gel, d. h. ein Gel, dessen Wassergehalt kleiner ist als sein maximal möglicher Wassergehalt.A gel that is as firm as possible, ie a gel whose water content is smaller than its maximum possible water content, is used.

Die mit dem erfindungsgemässen Verfahren gewickelten Materialbahnen können bei einer kontinuierlichen Weiterverarbeitung automatisch und unterbrechungsfrei aneinandergehängt werden.The webs of material wound with the method according to the invention can be automatically and uninterruptedly hung together in a continuous further processing.

Ein besonderer Anwendungsbereich des erfindungsgemässen Verfahrens betrifft die Aufwicklung von Materialbahnen, die in einer Schneideinrichtung aus einem Materialband geschnitten werden.A particular area of application of the method according to the invention relates to the winding up of material webs which are cut from a material strip in a cutting device.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele sowie anhand der Zeichnung; diese zeigt schematisch in

  • Fig. 1 und 2 die Befestigung einer Materialbahn auf einem Wickelkern nach dem Stand der Technik;
  • Fig. 3 und 4 die Befestigung einer Materialbahn an einen Wickelkern mit einem Gel auf Wasserbasis;
  • Fig. 5 einen Querschnitt durch einen Wickelkern mit an dessen Mantelfläche haftender Materialbahn.
Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawing; this shows schematically in
  • Figures 1 and 2, the attachment of a web on a winding core according to the prior art.
  • Figures 3 and 4, the attachment of a web to a winding core with a water-based gel.
  • Fig. 5 shows a cross section through a winding core with adhering to the lateral surface material web.

In dem in Fig. 1 gezeigtem Beispiel nach dem Stand der Technik wird ein Ende 11 einer Materialbahn 10 mittels eines Klebbandes 16 an der zylindrischen Mantelfläche 14 eines Wickelkerns 12 mit Zylinder- oder Rotationsachse s befestigt. Es ist ohne weiteres verständlich, dass die Haftkraft des Klebbandes 16 von dessen Länge abhängig ist. Je nach Länge und Art des Klebbandes16 kann die Haftkraft zur Mantelfläche 14 des Wickelkerns 12 so gross sein, dass sich die Materialbahn beim späteren Abwickeln nicht ohne weiteres von der Mantelfläche löst, was vor allem bei Autosplicing-Maschinen zu Problemen führen kann.In the example of the prior art shown in FIG. 1, an end 11 of a material web 10 is fastened by means of an adhesive tape 16 to the cylindrical jacket surface 14 of a winding core 12 with a cylindrical or rotational axis s. It is readily understood that the adhesive force of the adhesive tape 16 is dependent on its length. Depending on the length and type of Klebbandes16, the adhesive force to the lateral surface 14 of the winding core 12 may be so large that the material web does not readily dissolve during subsequent unwinding of the lateral surface, which can lead to problems especially in Autosplicing machines.

In den Fig. 3 und 4 wird ein Gel 18 auf Wasserbasis auf die dem Wickelkern 12 zugewandte Seite der Materialbahn 10 aufgetragen und das mit dem Gel 18 versehene Ende 11 wird an die zylindrische Mantelfläche 14 des Wickelkerns 12 angelegt.3 and 4, a gel 18 is applied to the water-based on the winding core 12 side facing the web 10 and the gel with the 18th provided end 11 is applied to the cylindrical surface 14 of the winding core 12.

Der Wickelkern 12 ist beispielsweise ein Hohlzylinder aus Karton und die Materialbahn z.B. eine 80 µm dicke Verpackungsfolie aus einem Aluminium/Kunststoff-Verbundmaterial. Das Gel auf Wasserbasis enthält beispielsweise eine Mischung von Natriumsilikat und Borsäure als Gelbildner.The winding core 12 is, for example, a hollow cylinder made of cardboard and the material web is e.g. an 80 μm thick packaging film made of an aluminum / plastic composite material. The water-based gel contains, for example, a mixture of sodium silicate and boric acid as gelling agent.

Die auf diese Weise entstehende Haftkraft zwischen Materialbahn 10 und Wickelkern 12 ist ausreichend hoch, dass die Materialbahn während der ersten Umdrehung des Wickelkerns 12 von diesem mitgenommen wird. Das Wasser migriert mit der Zeit vollständig in den Wickelkern 12 und die Haftkraft nimmt kontinuierlich ab. Beim späteren Abwickeln der Materialbahn ist die Haftkraft praktisch Null und das beim Aufwickeln fest haftende Ende 11 der Materialbahn 10 löst sich problemlos von der Mantelfläche14 des Wickelkerns 12.The resulting adhesion between web 10 and winding core 12 is sufficiently high that the web is taken during the first revolution of the winding core 12 of this. The water migrates completely over time in the winding core 12 and the adhesive force decreases continuously. During subsequent unwinding of the material web, the adhesive force is practically zero and the end 11 of the material web 10 firmly adhering during winding is easily detached from the lateral surface 14 of the winding core 12.

Claims (7)

  1. Method for winding a web of material (10) onto a winding core (12) with cylindrical surface (14), the web of material (10) and/or the winding core (12) having water-absorbing properties, in which method one end (11) of the web of material (10) is releasably adhesively bonded to the surface (14) of the winding core (12) by a water-based gel (18) applied to the end (11) of the web of material (10) and/or the surface (14), and the web of material is wound by rotation of the winding core (12) about its cylinder axis (s),
    characterised in that
    the water content of the gel (18) is lower than its maximum permitted water content.
  2. Method according to claim 1, characterised in that at least one region of the winding core (12) which forms the surface (14) is made of cardboard or paper.
  3. Method according to claim 2, characterised in that the winding core (12) is a hollow cylinder made of cardboard.
  4. Method according to any of claims 1 to 3, characterised in that the web of material (10) consists of a film of plastic, metal, paper or a multi-layered film consisting of at least two layers of the said materials.
  5. Method according to any of claims 1 to 4, characterised in that highly dispersed silicon dioxide, sodium silicate and boric acid, gelatin, cellulose or starch is used as the gel-forming agent.
  6. Method according to any of claims 1 to 5, characterised in that the web of material (10) is a strip of a material tape cut into strips in a cutting device.
  7. Method according to any of claims 1 to 6, characterised in that the webs of material (10) wound onto the winding cores (12) are stuck together automatically and without interruption during continuous further processing.
EP03405823A 2003-11-19 2003-11-19 Method for winding a material web Expired - Lifetime EP1533262B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DK03405823T DK1533262T3 (en) 2003-11-19 2003-11-19 Method of developing a material web
DE50306861T DE50306861D1 (en) 2003-11-19 2003-11-19 Method for winding a material web
ES03405823T ES2281616T3 (en) 2003-11-19 2003-11-19 PROCEDURE FOR THE DEVELOPMENT OF A BAND OF MATERIAL.
EP03405823A EP1533262B1 (en) 2003-11-19 2003-11-19 Method for winding a material web
PT03405823T PT1533262E (en) 2003-11-19 2003-11-19 Method for winding a material web
SI200330823T SI1533262T1 (en) 2003-11-19 2003-11-19 Method for winding a material web
AT03405823T ATE357397T1 (en) 2003-11-19 2003-11-19 METHOD FOR WINDING A WEB OF MATERIAL

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03405823A EP1533262B1 (en) 2003-11-19 2003-11-19 Method for winding a material web

Publications (2)

Publication Number Publication Date
EP1533262A1 EP1533262A1 (en) 2005-05-25
EP1533262B1 true EP1533262B1 (en) 2007-03-21

Family

ID=34429623

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03405823A Expired - Lifetime EP1533262B1 (en) 2003-11-19 2003-11-19 Method for winding a material web

Country Status (7)

Country Link
EP (1) EP1533262B1 (en)
AT (1) ATE357397T1 (en)
DE (1) DE50306861D1 (en)
DK (1) DK1533262T3 (en)
ES (1) ES2281616T3 (en)
PT (1) PT1533262E (en)
SI (1) SI1533262T1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3951890A (en) * 1974-07-22 1976-04-20 Unitech Chemical Inc. Tail control and transfer adhesives for rolled paper products
US5646090A (en) * 1995-04-06 1997-07-08 Dai Nippon Printing Co., Ltd. Thermal transfer image-receiving sheet
AT406255B (en) * 1998-01-13 2000-03-27 Andritz Patentverwaltung METHOD AND DEVICE FOR CHANGING REELS IN PAPER MACHINES
US6705560B1 (en) * 2000-11-28 2004-03-16 Metso Paper Karlstad Aktiebolg (Ab) Method for winding a tissue web in a reel-up in a paper machine
CA2417294C (en) * 2002-02-25 2011-04-12 Tesa Ag Producing a roll of a flat web material

Also Published As

Publication number Publication date
EP1533262A1 (en) 2005-05-25
DK1533262T3 (en) 2007-07-30
SI1533262T1 (en) 2007-08-31
ATE357397T1 (en) 2007-04-15
PT1533262E (en) 2007-06-19
ES2281616T3 (en) 2007-10-01
DE50306861D1 (en) 2007-05-03

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