EP0279609A2 - Herstellung von Wellpappe - Google Patents

Herstellung von Wellpappe Download PDF

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Publication number
EP0279609A2
EP0279609A2 EP88301228A EP88301228A EP0279609A2 EP 0279609 A2 EP0279609 A2 EP 0279609A2 EP 88301228 A EP88301228 A EP 88301228A EP 88301228 A EP88301228 A EP 88301228A EP 0279609 A2 EP0279609 A2 EP 0279609A2
Authority
EP
European Patent Office
Prior art keywords
flute
liner
roll
mediums
bonded
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.)
Granted
Application number
EP88301228A
Other languages
English (en)
French (fr)
Other versions
EP0279609A3 (en
EP0279609B1 (de
Inventor
Peter Gordon Bennett
Peter Robert Mckinlay
Neil William Shaw
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.)
Amcor Pty Ltd
Original Assignee
Amcor Pty 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
Application filed by Amcor Pty Ltd filed Critical Amcor Pty Ltd
Priority to AT88301228T priority Critical patent/ATE84464T1/de
Publication of EP0279609A2 publication Critical patent/EP0279609A2/de
Publication of EP0279609A3 publication Critical patent/EP0279609A3/en
Application granted granted Critical
Publication of EP0279609B1 publication Critical patent/EP0279609B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20—Corrugating; Corrugating combined with laminating to other layers
    • B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
    • B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
    • B31F1/28—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
    • B31F1/2813—Making corrugated cardboard of composite structure, e.g. comprising two or more corrugated layers

Definitions

  • This invention relates to a method of forming sandwich structures, comprising one or more non-corrugated sheet elements (liners) to which are bonded two or more corrugated (fluted) sheet elements (mediums) which are themselves bonded together.
  • Australian Patent Application 62323/86 discloses an improved corrugated paper board structure in which two or more layers of corrugated medium (flutes) are bonded together at the peaks of the flutes, and are sandwiched between two outer liners.
  • the disclosures of Application 62323/86 are incorporated herein by reference.
  • Patent Specification 62323/86 also discloses a method of forming the structural paper in which two or more separate layers of corrugating medium are corrugated and then brought into flute tip to flute tip contact on synchronised corrugating rollers.
  • That method does not address the problem of capital cost in constructing a new corrugating plant for the flute to flute paper board and the likely under utilization of existing corrugating machinery, making conventional flute to liner corrugated boards.
  • the modification can also be incorporated into the manufacture of new corrugating machinery to enable conventional corrugated board with improved printing properties and visual appearance to be also made.
  • Conventional machinery for forming corrugated board incorporates a unit for making single faced corrugated board, that is a liner adhered to a single fluted layer. More complex board constructions can be formed by bonding the exposed flutes to another liner and, if desired, subsequently bonding that to another single faced corrugated board.
  • a "single facer” plant normally includes as its essential components:
  • the present invention provides a method for bonding a liner to a corrugated medium or mediums in which adhesive is applied to the flute tips of the corrugated medium.
  • the liner is then brought into contact with the corrugated medium or mediums and the assembled liner and corrugated medium or mediums may be subjected to heat, or other energy or chemical process to initiate or assist in completion of the bonding.
  • This low pressure method of bonding gives superior bond strength (pin adhesion) than is achieved in conventional single-faced board.
  • this invention provides a modified single face corrugated board making apparatus capable of forming corrugated boards having two fluted mediums bonded together at the flute tips comprising
  • This invention also provides the following modification to enable the modified conventional single facer machine to make both conventional single faced board and flute to flute board.
  • the modification comprises:
  • This modification enables two fluting mediums to be precisely bonded flute tip to flute tip maintained in that orientation and then to be bonded to a liner as a first stage in preparing a flute to flute corrugated board.
  • one fluting medium is simply omitted and the one pair of corrugating rolls the preferred pair being the upper pair, (b), are not utilized.
  • the first adhesive applicator is preferably not used.
  • the mediums In forming the bonded fluted mediums it is necessary to constrain the mediums to maintain the flute orientation of each fluted layer and to maintain the orientation and symmetry of the flute tip to flute tip bonds. This may be achieved by using a grooved carrier roll to take up the bonded mediums and support them until the bond is set. Alternatively a smooth carrier surface can be used in association with vacuum to provide the necessary constraint. Other means for constraining the mediums can also be used such as strings or straps to maintain the flute tips in correct orientation.
  • the improved strength characteristics of the double flute construction enable lighter weight board to be made having strengths equivalent to those found in heavier boards of conventional structure. Thus savings in material costs are possible using the flute to flute construction.
  • boxes formed from flute to flute board exhibit superior durability and strength.
  • the creasing and folding characteristics of board having flute to flute bonding are such that the corner and edge folds of boxes provide added strength to the construction.
  • the flute to flute structure creases in a well defined manner to produce a hinged joint which is superior in strength, flexibility and visual appearance compared with creases in conventional board.
  • Bonded fluted mediums according to this invention can be subsequently bonded to any suitable liner material to form light weight structural laminates.
  • the mediums can be manufactured from 100% cellulose fibre or ligno-cellulose fibre or combinations of cellulose, ligno-cellulose and synthetic fibres, or they may be laminated structures.
  • the liners or sheet elements may be of any material and structure of varing thickness including, but not limited to, paper board made of cellulose fibres, ligno-cellulose fibres; cellulose, ligno-cellulose and/or synthetic fibre mixtures; natural or synthetic polymers, wood, or metal; or laminates made of bonded layers of any combinations of these materials. Strips or strings of any material may also be fed intermittently, between the mediums across the flutes and thus be bonded at the flute tip to flute tip junction. The inclusion of such strips or strings will constrain the bonded mediums and prohibit expansion of the flute tip to flute tip structure until one or more liners are added and may additionally confer added strength to the board. Bonding may be achieved by use of adhesives or by other means such as, but not limited to, soldering, brazing and fusion welding.
  • the liners can be wood veneer.
  • the liners may be metal foil or synthetic polymers.
  • the modification of a single flute station according to this invention enables in a conventional corrugator, the elimination of the need for pressure application to secure the bond between the liner and the corrugated medium.
  • the use of the heat or other means to complete the bonding process of the first liner to corrugated medium or mediums at the single facer is an innovation and has the advantage of not adversely affecting the strength of the board and of not adversely affecting the appearance of the board by reducing the normal pressure lines.
  • figure 1 represents a schematic view of a conventional single facer unit
  • figure 2 shows a schematic view of the unit as modified by this invention for forming a flute to flute structure
  • figure 3 shows a detailed view of figure 2
  • figure 4 shows the modified unit of this invention when used to make conventional single faced corrugated board.
  • a conventional single facer unit comprises mill roll stands 4 and 5, a preheater roll 6, a single facer station 7 and a mill roll 8 stand for fluting medium 23.
  • the single facer station 7 comprises the corrugating rolls 10 and 11, adhesive applicator 12, pressure roll 13 for pressing the liner against the corrugated medium 23 on roll 11.
  • the liner board 21 is fed from stand 5 over preheater roll 6 to the heated smooth guide rolls 14 and 15.
  • the formed single faced board 24 is transferred to idler roll 16 and then to conveyor 17 which transports the single faced board 24 for further processing.
  • one of the mill roll stands 5 is used for a second corrugating medium 22 while an other mill roll stand is used for liner 21.
  • a new guide roll 31 is used to guide the liner onto preheater roll 6 and then under a new guide roll 32, to the S wrap rolls and onto the carrier roll 36.
  • a second preheater roll 42 is inserted under preheater roll 6.
  • a new roll guide 43 is used to guide the medium onto the preheater roll 42 and then under a new guide roll 44.
  • a further preheater roll 45 is used. This will require a roll guide 46 and a roll guide 47 to guide the medium into the single facer S wrap heated rolls. Steam sprays may be mounted on preheater rolls to precondition the sheet.
  • Steam boxes may be located before rolls 10 and 34 to condition the mediums prior to corrugating.
  • An automatic splicer may be utilized with each medium coming from roll stands 5 and 8 with the liner coming from roll stand 4.
  • the guide roll 14 and pressure roll 13 shown in figure 1 are replaced by corrugating rolls 34 and 35.
  • the heated smooth guide roll 15 is used to preheat the corrugating medium 22.
  • the two corrugated mediums 22 and 23 are adhered together between rolls 35 and 11 which are driven synchronously to ensure precise flute tip to flute tip bonding. This can be achieved by installing a direct drive, meshed gear drive or toothed belt drive between the driven lower corrugating roll 35 and the corrugating roll 11.
  • a carrier roll 36 is installed to operate as a take-off roll and to provide support and constraint for the bonded mediums.
  • the carrier roll 36 may be constructed as a shell with appropriate drilling for vacuum application to hold the flute to flute structure in position on the carrier roll. Fingers or guides may also be provided to achieve the positioning of the flute to flute structure on the carrier roll and the corrugating rolls.
  • the corrugating rolls 11 and 35 can be arranged with a vacuum facility to hold the fluted product in the roll flutes.
  • the area providing the vacuum on roll 35 can be extended to hold the flute to flute structure in the roll flutes and present them in such a way as to achieve a correctly aligned transfer to the carrier roll 36.
  • the carrier roll 36 may be a plain or grooved cylindrical surface or may also be provided with spaced bars of metallic or non-metallic materials to carry the flute to flute structure.
  • Holding of the flute to flute structure to the carrier roll 36 may also be achieved by use of vacuum, applied from within the carrier roll inner cavity.
  • a new adhesive applicator station 37 is located adjacent to the carrier roll 36 to apply adhesive to the flute tips on the exposed face of the flute to flute structure.
  • the surface of the carrier roll may be arranged to provide a positive air pressure at point 49, causing the flute to flute structure to "puff out” ensuring a good transfer of the adhesive to the exposed tips of the structure.
  • the roll 38 guides the liner 21 to join with the flute to flute structure to form one particular example of the structures which are the subject of the invention disclosed in Patent Application No. 62323/86.
  • the top liner 21 is assisted in bonding to the flute to flute structure after the glue application by an input of energy in the form of radiant or convected heat, microwave or other energy by the units 39.
  • All components may be pre-heated, moistened or pre-treated to accelerate bonding of the component to component interfaces.
  • the carrier roll assisted by positive air pressure from the blow box 40 inside the carrier roll 36, or vacuum from the liner side, will discharge the combined liner and flute to flute structure 25 to transport section 41 preceding the next processing station.
  • the transport section 41 may be straight or curved in shape, and if curved, the curve will be arranged to utilise tension forces in the liner to apply gentle pressure to the glue bond. A change in radius will achieve further beneficial bond development.
  • the transport section 41 may be provided with a driven carrier belt or belts to transfer the combined liner and flute to flute structure to the next section or next processing unit.
  • the carrier roll 36 is driven by a separate synchronised drive, a meshed gear drive or a toothed belt drive from the lower corrugating roll 35 or primary driven roll 11 to ensure it is synchronised with the corrugating roll 35.
  • Precision, of flute tip to flute tip bonding and in the control of transfer from corrugating roll 35 to the carrier roll 36 and in the positional restraint of the flute to flute structure prior to the addition of liner 21 form key elements of this invention.
  • the modified unit of this invention can also be used to make an improved form of conventional single faced corrugated board.
  • An improved single-faced corrugated board may be produced by ceasing to feed the corrugating medium 23 to the corrugating rolls 10 and 11 and also ceasing to apply glue to glue station 12 while continuing application at glue station 37 to corrugated medium 22.
  • the glue station 37 is moved towards the carrier roll 36 to contact the thinner conventional corrugated sheet and the carrier roll 36 is rotated through one half flute pitch to bring corrugated medium 22 into mesh with carrier roll 36, after leaving corrugating roll 35.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Laminated Bodies (AREA)
  • Materials For Medical Uses (AREA)
  • Table Devices Or Equipment (AREA)
  • Paper (AREA)
  • Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
EP88301228A 1987-02-18 1988-02-15 Herstellung von Wellpappe Expired - Lifetime EP0279609B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88301228T ATE84464T1 (de) 1987-02-18 1988-02-15 Herstellung von wellpappe.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPI042187 1987-02-18
AU421/87 1987-02-18

Publications (3)

Publication Number Publication Date
EP0279609A2 true EP0279609A2 (de) 1988-08-24
EP0279609A3 EP0279609A3 (en) 1988-09-28
EP0279609B1 EP0279609B1 (de) 1993-01-13

Family

ID=3772024

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88301228A Expired - Lifetime EP0279609B1 (de) 1987-02-18 1988-02-15 Herstellung von Wellpappe

Country Status (14)

Country Link
EP (1) EP0279609B1 (de)
JP (1) JPH07110525B2 (de)
AT (1) ATE84464T1 (de)
BR (1) BR8800608A (de)
CA (1) CA1304663C (de)
DE (1) DE3877375T2 (de)
DK (1) DK171173B1 (de)
ES (1) ES2037209T3 (de)
FI (1) FI90641C (de)
GR (1) GR3007159T3 (de)
MY (1) MY102285A (de)
NO (1) NO173642C (de)
NZ (1) NZ223556A (de)
ZA (1) ZA881100B (de)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990004513A1 (en) * 1988-10-27 1990-05-03 The Langston Machine Company Limited Improvements in corrugating machines
EP0408623A1 (de) * 1988-03-31 1991-01-23 Amcor Ltd Herstellung von wellpappe.
WO1993003913A1 (en) * 1991-08-19 1993-03-04 Amcor Limited Manufacturing corrugated board
US5306384A (en) * 1988-10-27 1994-04-26 Amcor Limited Machine for making corrugated board including a vacuum/positive pressure transfer roll
ES2053377A2 (es) * 1992-03-02 1994-07-16 Torres Martinez M Sistema para la fabricacion de carton ondulado.
FR2708011A1 (fr) * 1993-07-20 1995-01-27 Otor Sa Machine et procédé de fabrication d'une feuille de carton ondulé simple face.
GB2303385A (en) * 1995-07-14 1997-02-19 Scm Container Mach Ltd Apparatus for producing corrugated paperboard
US5693167A (en) * 1990-05-15 1997-12-02 Molins Plc Corrugated board manufacture
WO1998018614A1 (en) * 1996-10-30 1998-05-07 Best Carton, Ltd. Production of corrugated board structures
CN1040407C (zh) * 1991-09-17 1998-10-28 阿姆科尔有限公司 瓦楞纸层板的改进加工方法及设备
DE19716706A1 (de) * 1997-04-21 1998-10-29 Bhs Corr Masch & Anlagenbau Maschine zur Herstellung einer einseitig kaschierten Wellpappebahn
US6068724A (en) * 1994-05-06 2000-05-30 Otor Machine and method for manufacture of a sheet of single-face corrugated board by gluing under tension
CN103222681A (zh) * 2012-01-30 2013-07-31 豪尼机械制造股份公司 用于处理包封材料带的方法和装置
US20140162030A1 (en) * 2011-07-20 2014-06-12 Sca Forest Products Ab Smoothly bendable board
CN109334130A (zh) * 2018-11-26 2019-02-15 天津津永诚包装技术有限公司 瓦楞纸板流水线

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR393156A (fr) * 1908-08-07 1908-12-15 Societe L. Sutre Et J. Tardieu Emballage et matériel pour le fabriquer
DE473855C (de) * 1926-11-18 1929-03-22 Albert Marcel Arbin Verfahren zum Herstellen von Wellpappe mit zusammengedraengten Wellen als Zwischenschicht und einem oder zwei Deckblaettern
EP0104372B1 (de) * 1982-09-03 1986-09-24 Werner H. K. Peters Maschinenfabrik GmbH Einseitige Wellpappenmaschine
EP0213957A2 (de) * 1985-09-04 1987-03-11 Amcor Limited Verfahren zur Herstellung von Wellpappe
AU567833B2 (en) * 1985-09-04 1987-12-03 Amcor Limited Corrugated paper board

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS555418A (en) * 1978-06-22 1980-01-16 Kuromi Ezeru Solarrenergyyoperated engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR393156A (fr) * 1908-08-07 1908-12-15 Societe L. Sutre Et J. Tardieu Emballage et matériel pour le fabriquer
DE473855C (de) * 1926-11-18 1929-03-22 Albert Marcel Arbin Verfahren zum Herstellen von Wellpappe mit zusammengedraengten Wellen als Zwischenschicht und einem oder zwei Deckblaettern
EP0104372B1 (de) * 1982-09-03 1986-09-24 Werner H. K. Peters Maschinenfabrik GmbH Einseitige Wellpappenmaschine
EP0213957A2 (de) * 1985-09-04 1987-03-11 Amcor Limited Verfahren zur Herstellung von Wellpappe
AU567833B2 (en) * 1985-09-04 1987-12-03 Amcor Limited Corrugated paper board

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0408623A1 (de) * 1988-03-31 1991-01-23 Amcor Ltd Herstellung von wellpappe.
EP0408623B1 (de) * 1988-03-31 1993-10-20 Amcor Limited Herstellung von wellpappe
WO1990004513A1 (en) * 1988-10-27 1990-05-03 The Langston Machine Company Limited Improvements in corrugating machines
US5306384A (en) * 1988-10-27 1994-04-26 Amcor Limited Machine for making corrugated board including a vacuum/positive pressure transfer roll
US5693167A (en) * 1990-05-15 1997-12-02 Molins Plc Corrugated board manufacture
WO1993003913A1 (en) * 1991-08-19 1993-03-04 Amcor Limited Manufacturing corrugated board
CN1040407C (zh) * 1991-09-17 1998-10-28 阿姆科尔有限公司 瓦楞纸层板的改进加工方法及设备
ES2053377A2 (es) * 1992-03-02 1994-07-16 Torres Martinez M Sistema para la fabricacion de carton ondulado.
US5614048A (en) * 1993-07-20 1997-03-25 Otor Machine and process for making a sheet of single face corrugated cardboard
TR28247A (tr) * 1993-07-20 1996-03-28 Otor Sa Sade yüzlü oluklu karton yapragi makinesi ve yapim usulü.
WO1995003166A1 (fr) * 1993-07-20 1995-02-02 Otor Machine et procede de fabrication d'une feuille de carton ondule simple face
AU690914B2 (en) * 1993-07-20 1998-05-07 Otor Machine and method for making a sheet of single face corrugated cardboard
FR2708011A1 (fr) * 1993-07-20 1995-01-27 Otor Sa Machine et procédé de fabrication d'une feuille de carton ondulé simple face.
US6068724A (en) * 1994-05-06 2000-05-30 Otor Machine and method for manufacture of a sheet of single-face corrugated board by gluing under tension
GB2303385A (en) * 1995-07-14 1997-02-19 Scm Container Mach Ltd Apparatus for producing corrugated paperboard
WO1998018614A1 (en) * 1996-10-30 1998-05-07 Best Carton, Ltd. Production of corrugated board structures
DE19716706A1 (de) * 1997-04-21 1998-10-29 Bhs Corr Masch & Anlagenbau Maschine zur Herstellung einer einseitig kaschierten Wellpappebahn
US20140162030A1 (en) * 2011-07-20 2014-06-12 Sca Forest Products Ab Smoothly bendable board
US9776374B2 (en) * 2011-07-20 2017-10-03 Sca Forest Products Ab Smoothly bendable board
CN103222681A (zh) * 2012-01-30 2013-07-31 豪尼机械制造股份公司 用于处理包封材料带的方法和装置
CN109334130A (zh) * 2018-11-26 2019-02-15 天津津永诚包装技术有限公司 瓦楞纸板流水线

Also Published As

Publication number Publication date
NZ223556A (en) 1990-09-26
DK81488A (da) 1988-08-19
EP0279609A3 (en) 1988-09-28
GR3007159T3 (de) 1993-07-30
JPH07110525B2 (ja) 1995-11-29
NO880696D0 (no) 1988-02-17
FI880743A (fi) 1988-08-19
DE3877375D1 (de) 1993-02-25
NO173642C (no) 1994-01-12
JPS63203325A (ja) 1988-08-23
ES2037209T3 (es) 1993-06-16
CA1304663C (en) 1992-07-07
NO880696L (no) 1988-08-19
EP0279609B1 (de) 1993-01-13
DK171173B1 (da) 1996-07-15
FI90641B (fi) 1993-11-30
NO173642B (no) 1993-10-04
MY102285A (en) 1992-05-15
ATE84464T1 (de) 1993-01-15
BR8800608A (pt) 1988-09-27
DK81488D0 (da) 1988-02-17
FI90641C (fi) 1994-03-10
DE3877375T2 (de) 1993-05-06
FI880743A0 (fi) 1988-02-17
ZA881100B (en) 1988-08-12

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