EP0908397A1 - Verpackungsmaterialien - Google Patents

Verpackungsmaterialien Download PDF

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Publication number
EP0908397A1
EP0908397A1 EP98116863A EP98116863A EP0908397A1 EP 0908397 A1 EP0908397 A1 EP 0908397A1 EP 98116863 A EP98116863 A EP 98116863A EP 98116863 A EP98116863 A EP 98116863A EP 0908397 A1 EP0908397 A1 EP 0908397A1
Authority
EP
European Patent Office
Prior art keywords
length
weakness
layer
corrugated
wrapping
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.)
Withdrawn
Application number
EP98116863A
Other languages
English (en)
French (fr)
Inventor
Michael Peter Barnrooden Farm Bond
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.)
Carrs Paper Ltd
Original Assignee
Carrs Paper 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 Carrs Paper Ltd filed Critical Carrs Paper Ltd
Publication of EP0908397A1 publication Critical patent/EP0908397A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/02—Wrappers or flexible covers
    • B65D65/10—Wrappers or flexible covers rectangular
    • B65D65/12—Wrappers or flexible covers rectangular formed with crease lines to facilitate folding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/40—Applications of laminates for particular packaging purposes
    • B65D65/403—Applications of laminates for particular packaging purposes with at least one corrugated layer

Definitions

  • This invention relates to wrapping materials of the kind comprising at least one layer of a corrugated sheet material and at least one further layer of a flexible sheet material bonded together to form a composite material.
  • the layers may be bonded by adhesives such as starch, polyvinyl acetate, sodium silicate and/or blends thereof.
  • the further layer comprises a flat sheet material, but it may alternatively comprise a creped sheet and/or a creped/flat laminant.
  • the composite material may have cohesive adhesive or other coatings on either surface for subsequent sealing.
  • Such wrapping materials are supplied in rolls or in large sheets and are commonly used to enclose and protect a wide range of articles.
  • the material is more flexible about lines parallel to the corrugations than about lines transverse thereto, it is formed into rolls centred on an axis parallel to the corrugations and in the roll or sheet as supplied to the user the corrugations extend across the width of the material.
  • the width of the material in the roll in effect defines the maximum length of article that can conveniently be wrapped using such material.
  • the maximum width available is not more than about 2 meters, but there is a requirement for packaging articles of much greater length, for example bundles of tubing, rods, pipes, channel sections and the like in lengths of perhaps 4 to 6 meters. This can be achieved by wrapping several successive lengths of such corrugated material around the articles, but this is time-consuming and difficult, and as a result it has in the past been preferred to use boxes to package such long articles.
  • boxes has a number of disadvantages.
  • the dimensions of a box are pre-determined and must be tailored to the product being wrapped, whereas articles such as extrusions, tubes and channel sections may be made in various lengths.
  • boxes are normally stored in a flat condition and erecting large flat boxes prior to use may be relatively difficult.
  • a length of wrapping material of the kind comprising at least one layer of a corrugated sheet material and at least one other layer of a flexible sheet material which are bonded together to form a composite material, wherein at least one line of weakness is formed therein to extend along the length of the material in a direction transverse to the corrugations, whereby folding of the material about said line of weakness is facilitated.
  • a length of such wrapping material may be formed into a roll centred on an axis parallel to the corrugations with said line of weakness extending along the length of the material in the roll.
  • a roll of wrapping material of the kind comprising at least one layer of a corrugated sheet material and at least one other layer of a flexible sheet material which are bonded together to form a composite material, wherein at least one line of weakness is formed therein to extend along the length of the material in the roll and in a direction transverse to the corrugations whereby, after a length of material has been severed from the roll, folding of said length of the material about said line of weakness is facilitated.
  • the line of weakness may be formed by scoring the layer of corrugated material in a generally conventional manner, but in accordance with a particularly preferred feature of the invention the line of weakness is formed by a discontinuity in the (or each) corrugated layer of the composite material. Such discontinuity may be formed by wholly or partially removing a strip of the corrugated material, but preferably separate pieces of corrugated material are secured to the layer of the other material with a spacing corresponding to the required gap.
  • At least two such discontinuities are provided.
  • the material can in use be folded into a channel section of pre-determined width, and two pieces of such folded material can be employed to enclose for example elongated articles formed into a bundle of rectangular shape in transverse section.
  • the material can be folded in one piece entirely around such a bundle of articles.
  • the spacing between the discontinuities can be set to correspond to the size of the bundle to be wrapped.
  • additional discontinuities for example at regular intervals across the width of the material, so that the material can be folded at a number of alternative positions to suit differing widths of bundles.
  • the material can be used for wrapping elongate articles formed into bundles of circular or other non-rectangular shape in transverse section.
  • the width of the discontinuity may be varied according to the angle and direction of the fold to be produced as hereinafter described.
  • the composite material includes additional layers of the corrugated material
  • a discontinuity is required in each additional layer, but the width of each discontinuity at the same fold line may be different.
  • a discontinuity may be formed in at least some of such additional layers, but it is possible for all layers of the other material to extend across the fold line without any discontinuity.
  • the line of weakness may be formed by crushing a strip of the layer of corrugated material. This has the advantage of providing greater strength at the fold line than would be afforded by the other layer of material alone, but may decrease the ease of folding, particularly in the case of very long lengths of the material.
  • a method of wrapping elongate articles by using a length of wrapping material of the kind comprising at least one layer of a corrugated sheet material and at least one other layer of a flexible sheet material which are bonded together to form a composite material, and wherein a plurality of parallel lines of weakness is formed the material to extend along the entire length of the material in a direction transverse to the corrugations and thereby facilitate folding of the material about said lines of weakness, arranging said material in juxtaposition with said article with the corrugations extending transverse to the length of the article, and folding said material about at least some of said lines of weakness and at least partially around said article.
  • corrugated wrapping material 10 in accordance with the invention is shown in the form of a roll 11, from which the material is drawn off and a suitable length 12 is cut.
  • the material in this embodiment comprises a base layer 14 of a flexible material, which may be a flat material , a creped sheet or a creped/flat laminant, adhesively bonded to a layer 15 of corrugated material.
  • the corrugations in the layer 15 extend transversely across the width of the material in the roll 11.
  • lines of weakness are formed in the material along the length thereof and transverse to the corrugations.
  • the lines of weakness may be formed by scoring the material or by a line of intermittent cuts, they are preferably formed by gaps 20 in the corrugated layer 15 as shown more clearly in figure 2 so that the portion 21 of the base layer 14 across the gap 20 can serve as a hinge portion about which the material can be folded as hereinafter described.
  • the gaps 20 are most conveniently formed by securing separate lengths of the corrugated material to the base layer 14 with the required gap between each length.
  • the width X of the gap 20 is sufficient to enable the layer 14 to be folded through 90° to bring the edges of the corrugated material towards one another as shown in figure 3 to form as "inside" corner with the corrugated material on the inner side, say ⁇ /2 times the depth of the corrugated layer.
  • the width X may be varied.
  • the gap is decreased to a value significantly less than the depth of the corrugated material and the base material is folded about the narrower hinge portion 22 in the opposite direction to form an "outside" corner with the corrugated material in the outer side.
  • the material 10a includes a second layer 16 of the base material secured to the corrugated layer 15 on the face opposite to the first base layer 14.
  • a portion 24 of the second layer 16 extends across the gap 20, and the material can be folded in either direction.
  • the portion 21 of the layer 14 serves as the hinge and the portion 24 of the other layer 16 buckles either inwardly into the gap 20 as the material is folded as shown, or outwardly.
  • the layer 16 may be formed with a discontinuity at the gap 20, in the form of either a gap or a slit if it is required to avoid increasing the stiffness of the hinge portion 21.
  • the material 10b includes a second layer 17 of the corrugated material secured to the layer 14 on the face opposite to the first layer of corrugated material 15, and a narrower gap 22 is provided in the second corrugated layer.
  • the material can be folded about the portion 21 in the manner illustrated in figure 7 to bring the corrugated material 15 on opposite sides of the gap 20 towards one another.
  • outer layers 16 and 18 of the base material ale secured to respective corrugated layers 15 and 17 carried on opposite faces of the layer 14.
  • a portion 24 of the second layer 16 extends across the gap 20 in the corrugated layer 15, and a portion 25 of the third layer 18 extends across the wider gap 23 in the second corrugated layer 17.
  • the portion 24 of the layer 16 in this case serves as the hinge and the portions 21 and 25 of the other layers 14 and 18 buckle inwardly or outwardly as the material is folded.
  • the portions 14 and 18 may be scored as appropriate.
  • the layers 14 and/or 18 may be formed with a discontinuity at the gap 20, in the form of either a gap or a slit if it is required to avoid increasing the stiffness of the hinge portion 24.
  • two lengths 12 of the material 10, or of the materials 10a, 10b, 10c as above-described and having two gaps 20, may be folded to channel section around opposite sides of a rectangular-section bundle of articles A as shown in figure 10, the spacing between the gaps 20 corresponding to the width of the bundle, and secured in place by means of adhesive tape for example.
  • the material may be formed with four gaps 20 and be of an appropriate width to enable a single length 12A of the material to be wrapped as shown in figure 11 around the bundle of articles A in one piece.
  • the hinge portions may be modified as indicated at 21a to be of greater width in order to afford greater flexibility at the corners of the package, whereby variations in the cross-sectional size of the bundle can be accommodated. In this way it is possible to package bundles of articles, or single articles, that taper in width or vary in some other way from uniform cross-section.
  • the material can be cut to a length that exceeds the length of the articles to be packaged and cuts 26 can then be made along the hinge portions where they extend beyond the ends of the articles as shown in figure 13 so as to form end closure flaps 27 that can be folded in the manner shown in figure 14 and secured in place in any suitable manner.
  • the gaps may be arranged as appropriate to the cross-sectional shape.
  • any combination of gaps can be provided to correspond to an article, or bundle, of any cross-sectional shape.
  • the material may be adapted for wrapping articles of circular cross-section.
  • the material may be adapted for wrapping articles of complex shapes, for example L-shaped or U-shaped.
EP98116863A 1997-10-08 1998-09-07 Verpackungsmaterialien Withdrawn EP0908397A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9721251.8A GB9721251D0 (en) 1997-10-08 1997-10-08 Wrapping materials
GB9721251 1997-10-08

Publications (1)

Publication Number Publication Date
EP0908397A1 true EP0908397A1 (de) 1999-04-14

Family

ID=10820175

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98116863A Withdrawn EP0908397A1 (de) 1997-10-08 1998-09-07 Verpackungsmaterialien

Country Status (4)

Country Link
EP (1) EP0908397A1 (de)
JP (1) JPH11301730A (de)
CA (1) CA2249750A1 (de)
GB (1) GB9721251D0 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2356855A (en) * 1999-11-02 2001-06-06 Karnal Ahmed Box formed from a blank
EP1291172A2 (de) 2001-09-05 2003-03-12 Kodak Polychrome Graphics LLC Ein mehrschichtiges thermisch bebilderbares Element
WO2003047984A1 (en) * 2001-12-07 2003-06-12 Laszlo Mayer Container blank
WO2004033206A1 (en) 2002-10-04 2004-04-22 Kodak Polychrome Graphics Llc Thermally sensitive multilayer imageable element
US9205621B2 (en) 2005-01-26 2015-12-08 Ranpak Corp. Apparatus and method for making a wrappable packaging product
IT202100030164A1 (it) * 2021-11-29 2023-05-29 P Q R S S R L Sistema di imballaggio e trasporto di campioni di ferro tondo per c.a. da sottoporre a verifica di laboratorio

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5721933B2 (ja) * 2009-02-05 2015-05-20 株式会社ＴａｎａーＸ 段ボールケースの製造方法及び片面段ボール

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE539612C (de) * 1931-11-28 Robert Jakobi Verpackungsmaterial
FR898714A (fr) * 1943-05-31 1945-05-04 Perfectionnements aux matériaux en feuilles rigidifiées par ondulations et notamment au carton ondulé
US2503874A (en) * 1946-02-27 1950-04-11 Charles Q Ives Flexible corrugated sheet material, method and apparatus
DE820850C (de) * 1949-03-29 1951-11-12 Clemens Fa Ludwig Verfahren zur Herstellung von Wellpapp-Stegeinlagen und danach hergestellte Stegeinsaetze
FR1467268A (fr) * 1965-12-17 1967-01-27 Smeets France Carton en rouleau
US5266148A (en) * 1990-02-07 1993-11-30 Weyerhaeuser Company Triple wall fold construction and forming process and mechanism

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE539612C (de) * 1931-11-28 Robert Jakobi Verpackungsmaterial
FR898714A (fr) * 1943-05-31 1945-05-04 Perfectionnements aux matériaux en feuilles rigidifiées par ondulations et notamment au carton ondulé
US2503874A (en) * 1946-02-27 1950-04-11 Charles Q Ives Flexible corrugated sheet material, method and apparatus
DE820850C (de) * 1949-03-29 1951-11-12 Clemens Fa Ludwig Verfahren zur Herstellung von Wellpapp-Stegeinlagen und danach hergestellte Stegeinsaetze
FR1467268A (fr) * 1965-12-17 1967-01-27 Smeets France Carton en rouleau
US5266148A (en) * 1990-02-07 1993-11-30 Weyerhaeuser Company Triple wall fold construction and forming process and mechanism

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2356855A (en) * 1999-11-02 2001-06-06 Karnal Ahmed Box formed from a blank
EP1291172A2 (de) 2001-09-05 2003-03-12 Kodak Polychrome Graphics LLC Ein mehrschichtiges thermisch bebilderbares Element
WO2003047984A1 (en) * 2001-12-07 2003-06-12 Laszlo Mayer Container blank
WO2004033206A1 (en) 2002-10-04 2004-04-22 Kodak Polychrome Graphics Llc Thermally sensitive multilayer imageable element
US9205621B2 (en) 2005-01-26 2015-12-08 Ranpak Corp. Apparatus and method for making a wrappable packaging product
IT202100030164A1 (it) * 2021-11-29 2023-05-29 P Q R S S R L Sistema di imballaggio e trasporto di campioni di ferro tondo per c.a. da sottoporre a verifica di laboratorio

Also Published As

Publication number Publication date
CA2249750A1 (en) 1999-04-08
GB9721251D0 (en) 1997-12-03
JPH11301730A (ja) 1999-11-02

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