GB2449747A - Tubular Packaging Container and Method for Making a Tubular Pakaging Container - Google Patents

Tubular Packaging Container and Method for Making a Tubular Pakaging Container Download PDF

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Publication number
GB2449747A
GB2449747A GB0809229A GB0809229A GB2449747A GB 2449747 A GB2449747 A GB 2449747A GB 0809229 A GB0809229 A GB 0809229A GB 0809229 A GB0809229 A GB 0809229A GB 2449747 A GB2449747 A GB 2449747A
Authority
GB
United Kingdom
Prior art keywords
blank
composite
packaging container
tubular
tubular packaging
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Withdrawn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
GB0809229A
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GB0809229D0 (en
Inventor
James John Mclaren
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.)
MCLAREN PACKAGING Ltd
Original Assignee
MCLAREN PACKAGING 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 MCLAREN PACKAGING Ltd filed Critical MCLAREN PACKAGING Ltd
Publication of GB0809229D0 publication Critical patent/GB0809229D0/en
Publication of GB2449747A publication Critical patent/GB2449747A/en
Withdrawn legal-status Critical Current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
    • B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
    • B65D3/02—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines characterised by shape
    • B65D3/04—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines characterised by shape essentially cylindrical
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/02—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
    • B65D5/0209—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body the tubular body having a curved or partially curved cross-section
    • 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
    • B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
    • B65D3/22—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines with double walls; with walls incorporating air-chambers; with walls made of laminated material
    • 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
    • B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
    • B65D3/28—Other details of walls
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/32—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper having bodies formed by folding and interconnecting two or more blanks each blank forming a body part, whereby each body part comprises at least one outside face of the box, carton or tray
    • B65D5/326—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper having bodies formed by folding and interconnecting two or more blanks each blank forming a body part, whereby each body part comprises at least one outside face of the box, carton or tray at least one container body part formed by folding a single blank to a permanently assembled tube
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/4279—Joints, seams, leakproof joints or corners, special connections between panels
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/56—Linings or internal coatings, e.g. pre-formed trays provided with a blow- or thermoformed layer
    • B65D5/566—Linings made of relatively rigid sheet material, e.g. carton
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • B31B2105/002—Making boxes characterised by the shape of the blanks from which they are formed
    • B31B2105/0022—Making boxes from tubular webs or blanks, e.g. with separate bottoms, including tube or bottom forming operations
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2110/00—Shape of rigid or semi-rigid containers
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2120/00—Construction of rigid or semi-rigid containers
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2120/00—Construction of rigid or semi-rigid containers
    • B31B2120/40—Construction of rigid or semi-rigid containers lined or internally reinforced

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)

Abstract

A composite panel 60 is formed by aligning a first blank 10 with a second blank 40 in a substantially coplanar back-to-back arrangement. The blanks 10, 40 are arranged such that the composite panel comprises two non-overlapping marginal regions 62, 64. The composite panel 60 is curved about an appropriate former to bring the first non-overlapping region 62 into overlap with the second non-overlapping region 64 and the two non-overlapping regions 62, 64 are then glued together. Prior to the formation of the composite panel 60 the first 10 and second 40 blanks are provided with appropriate finishes such that when folded into a tubular shape the finished face of the first blank 10 forms the external face of the tubular packaging container and the finished face of the second blank 40 forms the internal face of the tubular packaging container. A closure means is then fixed to one of the open ends of the tubular body to form the base of the resulting tubular packaging container. A further closure means is fixed to the other open end of the tubular body to complete the tubular packaging container.

Description

I
Tubular Packaging Container and Method for Making a Tubular Packaging Container
Field of the Invention
The present invention relates to a packaging container and in particular, a tubular packaging container. The present invention further relates to a method of making a tubular packaging container.
Background of the Invention
Tubular packaging containers are known for holding, for example, whisky bottles. GB2294021 describes a process for forming a tubular packaging container from a blank folded to form two panels, one of which is larger than the other. The two panels are glued together in a back-to-back arrangement to form a composite panel. The composite panel is then folded into a tube wherein the end edges of the panel forming the interior of the tube (i.e. the interior panel) are brought into an abutting relationship; and marginal portions of the panel forming the exterior of the tube (i.e. the exterior panel) are secured together in an overlapping relationship.
The joint formed between the contacting, opposing sides of the composite panel effectively forms a bulky and unsightly three-ply overlapping seam in a tubular packaging container. Thus, more material is used to form the seam than actually necessary, leading to unnecessary costs and raw-material consumption in large-scale production processes for making the tubular packaging containers. In addition, the bottom opening of such containers are typically closed with a plastic closure, which is glued to paper teeth formed by the inner ply, which introduces substantial delays into the packaging forming process.
Summary of the Invention
According to the invention there is provided a tubular packaging container comprising a tubular body with two opposing substantially open ends, one or more of which is closed by a metal closing means; wherein the tubular body is formed from a composite comprising two or more blanks, provided in a substantially co-planar arrangement and secured together to provide an overlapping region two or more non-overlapping regions, the non-overlapping regions being disposed proximal to two or more opposing ends of the composite; and wherein the composite is curved to the shape of the tubular body and retained in that shape by securing together the non-overlapping regions of the composite.
Preferably, each of the blanks comprises a first finished face and a second unfinished face.
Preferably, the blanks are arranged in the composite so that the unfinished faces contact each other in the overlapping region.
Preferably, the blanks are secured to each other in the composite by an adhesive.
Preferably, the non-overlapping regions are secured to each other in the tubular body by an adhesive.
Preferably, the blanks comprise a card or plastics material.
Preferably, the two non-overlapping regions substantially overlap with each other.
Desirably, the composite is curved so that a non-overlapping region formed at a first side of a first blank substantially overlaps with a region of the first blank proximal to an opposing side of the first blank, to form an inner tubular member; and a non-overlapping region formed at a first side of the second blank substantially overlaps with a further region of the second blank proximal to the opposing side of the second blank to form an outer tubular member.
Desirably, the composite is curved so that a free side of the non-overlapping region formed from the first blank abuts against the opposing side of the second blank.
According to a second aspect of the invention there is provided a method of forming a tubular packaging container, the method comprising the steps of: forming a composite from a first blank and a second blank in a substantially co-planar, back-to-back arrangement; arranging the first blank and the second blank to partially overlap and form a two or more non-overlapping regions proximal to two or more opposing ends of the composite; curving the composite to form a tubular body; securing the non-overlapping regions of the composite together to retain the tubular body in shape; and closing the or each opening in the tubular body with a metal closing means.
Preferably the step of closing the one or more openings in the tubular body is performed using a can seaming process.
Desirably the method is preceded by a step of finishing one or more of the faces of the first and second blanks.
Preferably, the step of finishing one or more of the faces of the first and second blanks comprises the step of printing to the faces or sealing or glazing or laminating the face.
Desirably, the step of forming the composite comprises the step of arranging the first and second blanks so that their finished faces form the externally directed faces of the composite.
Preferably the step of curving the composite to form a tubular body comprises the step of defining the shape of the tubular body about a mandrel.
Preferably the step of curving the composite to form a tubular body comprises the step of curving the composite so that two of the non-overlapping regions substantially overlap with each other.
Desirably, the step of curving the composite comprises the step of curving the composite such that -the non-overlapping region formed at a first side of the first blank substantially overlaps with a further region of the first blank proximal to the opposing side of the first blank, to form an inner tubular member; -the non-overlapping region formed at a first side of the second blank substantially overlaps with a further region of the second blank proximal to the opposing side of the second blank to form an outer tubular member.
Desirably, the step of curving the composite further includes the step of curving the composite so that a free side of the non-overlapped region formed from the first blank abuts against the opposing side of the second blank.
According to a third aspect of the invention there is provided a machine comprising means configured to perform all of the steps of the method of the second embodiment.
Brief DescriDtion of the Drawings Several embodiments of the invention will now be described by way of example only, with reference to the accompanying Figures and Table in which: Figure 1 is a schematic drawing of a first blank for the construction of the tubular packaging container of the preferred embodiment; Figure 2 is a schematic drawing of a second blank for the construction with the first blank shown in Figure 1, of the tubular packaging container of the preferred embodiment; Figure 3 is a perspective view of the first blank shown in Figure 1 and the second blank shown in Figure 2 aligned with one another to form the tubular packaging container of a first embodiment; Figure 4 is a perspective view of a tubular packaging container formed from the folding of the aligned first and second blanks shown in Figure 3; Figure 5a is a cross sectional view of a joint formed in the tubular packaging container of the first embodiment; Figure 5b is a cross sectional view of a joint formed in a second embodiment of the tubular packaging container; Figure 5c is a cross sectional view of a joint formed in a third embodiment of the tubular packaging container; Figure 6 is a perspective view of a fourth embodiment of the tubular packaging container; and Figure 7 is a cross sectional view of a joint formed in the fourth embodiment shown in Figure 6.
Detailed DescriDtion Referring to Figure 1, a first blank 10 is of generally rectangular shape with primary axis Al denoted by a double-headed arrow and a secondary axis being substantially perpendicular to the primary axis Al.
Further, the first blank 10 comprises two opposing free edges 12, 14 that run substantially parallel to the primary axis Al. In use, the first blank 10 forms the external surface of the assembled tubular packaging container.
For simplicity, and in view of the eventual use of the first blank 10, fold lines and structures formed within the first blank 10 will be identified as exterior fold lines and structures.
Accordingly, the first blank 10 comprises an exterior first inner fold line 16 disposed at a distance Dl from the first free edge 12. The exterior first inner fold line 16 runs substantially parallel to the primary axis Al to form an exterior first panel 18 extending between the first free edge 12 and the exterior first fold line 16.
Progressing towards the second free edge 14, the first blank 10 comprises an exterior second inner fold line 20 disposed at a distance D2 from the exterior first inner fold line 16. The exterior second inner fold line runs substantially parallel to the primary axis Al to form an exterior second panel 22 extending between the exterior first inner fold line 16 and the exterior second inner fold line 20.
Similarly, progressing further towards the second free edge 14, the first blank 10 comprises an exterior third inner fold line 24 disposed at a distance D3 from the exterior second inner fold line 20. The exterior third inner fold line 24 runs substantially parallel to the primary axis Al to form exterior third and fourth panels 26, 28, wherein the exterior third panel 26 extends between the exterior second inner fold line 20 and the exterior third inner fold line 24; and the exterior fourth panel 28 extends between the exterior third inner fold line 24 and the second free edge 14.
Referring to Figure 2, a second blank 40 is of generally rectangular shape with primary axis A2 denoted by a double-headed arrow and a secondary axis being substantially perpendicular to the primary axis A2.
Further, the second blank 40 comprises two opposing free edges 42, 44 that run substantially parallel to the primary axis A2. In use, the second blank 40 forms the internal surface of the assembled tubular packaging container. For simplicity, and in view of the eventual use of the second blank 40, fold lines and structures formed within the second blank 40 will be identified as interior fold lines and structures.
Accordingly, the second blank 40 comprises an interior first inner fold line 46 disposed at a distance Dl' from the first free edge 42. The interior first inner fold line 46 runs substantially parallel to the primary axis A2 to form an interior first panel 48 extending between the first free edge 42 and the interior first fold line 46.
Progressing towards the second free edge 44, the second blank 40 comprises an interior second inner fold line 50 disposed at a distance 02' from the interior first inner fold line 46. The interior second inner fold line runs substantially parallel to the primary axis A2 to form an irterior second panel 52 extending between the interior first inner fold line 46 and the interior second inner fold line 50.
Similarly, progressing further towards the second free edge 44, the second blank 40 comprises an interior third inner fold line 54 disposed at a distance D3' from the interior second inner fold line 50. The interior third inner fold line 54 runs substantially parallel to the primary axis A2 to form interior third and fourth panels 56, 58, wherein the interior third panel 56 extends between the interior second inner fold line 50 and the interior third inner fold line 54; and the interior fourth panel 58 extends between the interior third inner fold line 54 and the second free edge 44.
Referring to Figure 3, a composite panel 60 is formed by aligning the first blank 10 with the second blank 40 in a substantially co-planar back-to-back arrangement. In particular, the first and second blanks 10, are arranged so that the second free edge 44 of the second blank 40 is aligned with the exterior first inner fold line 16 of the first blank 10; and the second free edge 14 of the first blank 10 is aligned with the interior first inner fold 46 line of the second blank 40. Thus, the composite panel 60 comprises two non-overlapping marginal regions 62, 64. In the first non-overlapping region 62, the interior first panel 48 of the second blank 40 is not overlapped with the first blank 10. In the second non-overlapping region 64, the exterior first panel 18 of the first blank 10 is not overlapped with the second blank 40. The first and second blanks 10, 40 are then secured together in the composite panel 60 by gluing or other suitable mechanisms.
The board material from which the first and second blanks 10, 40 are formed preferably comprises a card or plastics material and includes one face having an appropriate "finish" applied thereto (i.e. a finished face), and one un-finished face. The contacting faces of the blanks 10, 40 in the composite panel 60 are the unfinished faces. Thus, when folded into a tubular shape as described below, the finished face of the first panel 10 forms the external face of the tubular packaging container and the finished face of the second panel 40 forms the internal face of the tubular packaging container. The finish applied to the material may be of any appropriate kind including sealing or glazing, foil lamination etc. For clarity, by the term "tubular" we mean an object comprising elongated peripheral walls; whose cross section may or may not be curved and is symmetrical or asymmetrical about the axis substantially perpendicular to the axes Al and A2 depicted in Figures 1 and 2. In particular, the cross-section may include any regular or irregular shape.
Referring to Figure 4, the composite panel 60 is curved about an appropriate former to bring the second free edge 44 of the second blank into abutment with the interior first panel 48 of the second blank 40; and the second free edge 14 of the first blank 10 into abutment with the first free edge 12 of the first blank 10. As a result, the first nonoverlapping region 62 formed from the second blank 40 is brought into overlap with the second non-overlapping region 64 formed from the first blank 10. The first and second non-overlapping regions 62,64 are then glued together. Thus, referring to Figure 5A, the composite panel 60 is effectively formed into a tubular body 64 (i.e. with a closed curve cross-section), wherein the joint region X effectively holding the tubular body 64 together is a two-ply joint formed by the exterior first panel 18 of the first blank 10 and the interior first panel 48 of the second blank 40.
Referring to Figure 5B, in a second embodiment, the non-overlapping region 62 is sized relative to non-overlapping region 64 so that when the second free edge 44 of the second blank 40 is brought into abutment with the interior first panel 48 of the second blank 40, the first free edge 12 of the first blank 10 overlaps the exterior fourth panel 28 of thefirst blank 10.
Thus, in effect, the joint region holding the tubular body together comprises a 2-ply portion X1, wherein the second blank 40 (i.e. the inner sheet) abuts against itself and a 3-ply portion X2 wherein the first blank 10 (i.e. the outer sheet) overlaps itself.
Referring to Figure 5C, in a third embodiment, the composite panel is curved about a former to bring the interior first panel 48 of the second blank 40 into an overlapping arrangement with the interior fourth panel 58 of the second blank 40. The non-overlapping regions 62, 64 are sized so that the above process of overlapping the second blank 40 (interior sheet) causes the exterior fourth panel 28 of the first blank 10 to overlap with the exterior first panel 18 of the first blank 10, leaving a gap Y between second free edge 14 (of the first blank 10) and the first free edge 42 (of the second blank 40). Thus, the joint effectively holding the tubular body 64 together is predominantly 3-ply, (wherein the first blank overlaps itself and the second blank overlaps itself) apart from the region where the gap Y is, wherein the joint is 2-ply.
Referring to Figures 6 and 7 in combination, in a fourth embodiment, the composite panel 60 is curved about a former to substantially align the second free edge 44 of the second blank 40 with the interior first inner fold line 46 of the second blank 40; thereby bringing the second free edge 44 (and the interior fourth panel 58) of the second blank (i.e. inner sheet) into an overlapping arrangement with the interior first panel 48 of the second blank 40. Thus, in effect, the inner sheet of the tubular body overlaps itself.
The non-overlapping regions 62, 64 are sized so that the overlapping of the second blank 40 causes the second free edge 14 of the first blank 10 to abut the second free edge 44 of the second blank 40 and the exterior first panel 18 of the first blank 10 to at least partially overlap with the exterior fourth panel 28 of the first blank 10. Thus, in effect, the joint holding the tubular body is 3-ply substantially throughout, wherein the joint comprises a first region (formed by the sandwiching of the exterior fourth panel 28 of the first blank 10 by the exterior first panel 18 of the first blank 10 and the interior second panel 52 of the second blank 40) and a second region (formed by the sandwiching of the interior fourth panel 58 of the second blank 40 by the exterior first panel 18 of the first blank 10 and the interior first panel 48 of the second blank 40).
A metal closure means (not shown) is then fixed to one of the open ends of the tubular body 64 to form the base of the resulting tubular packaging container. Preferably, the metal end closure means is fixed to the tubular body 64 by a standard can seaming process, although other closure mechanisms are also possible. A further closure means (not shown) is fixed to the other open end of the tubular body to complete the tubular packaging container. The further closure means may comprise a metal, plastics material or other suitable material.
On a related note, it will be appreciated that the cross-sectional shape of the tubular body 64 can differ from that illustrated in Figure 4. In particular, it is possible to form a circular-section cylinder, and oval-section tube, or any irregular shape for example a pseudo-triangular or a hexagonal form. Similarly, whilst the form of the tubular body 64 is preferably defined on a former or mandrel on which the composite blank is curved and held until the glue (not shown) is cured, the use of such a mandrel or former may not always be necessary.
For completeness, Table I lists the dimensions of an example of a first and second blank. It will be appreciated that these dimensions are provided for example purposes only and are in no way intended to limit the scope of the present invention to those dimensions.
Modifications and alterations may be made to the above without departing from the scope of the invention.
Blank Dimension Value Dl 29.4 mm D2 131.8 mm 03 31.1 mm D4 131.8 mm Dl' 30mm D2' 129.9 mm D3' 30.9 mm D4' 129.9 mm HI 277 mm Wi 324.1 mm H2 277 mm W2 320.7 mm
Table I

Claims (19)

1. A tubular packaging container comprising a tubular body with two opposing substantially open ends, one or more of which is closed by a metal closing means; wherein the tubular body is formed from a composite comprising two or more blanks, provided in a substantially co-planar arrangement and secured together to provide an overlapping region two or more non-overlapping regions, the non-overlapping regions being disposed proximal to two or more opposing ends of the composite; and wherein the composite is curved to the shape of the tubular body and retained in that shape by securing together the non-overlapping regions of the composite.
2. The tubular packaging container as claimed in claim 1, wherein each of the blanks comprises a first finished face and a second unfinished face.
3. The tubular packaging container as claimed in claim 2, wherein the blanks are arranged in the composite so that the unfinished faces contact each other in the overlapping region.
4. The tubular packaging container as claimed in any of the preceding claims, wherein the blanks are secured to each other in the composite by an adhesive.
5. The tubular packaging container as claimed in any of the preceding claims, wherein the non-overlapping regions are secured to each other in the tubular body by an adhesive.
6. The tubular packaging container as claimed in any of the preceding claims, wherein the blanks comprise a card or plastics material.
7. The tubular packaging container as claimed in any one of the preceding claims wherein the two non-overlapping regions substantially overlap with each other.
8. The tubular packaging container as claimed in any one of claims I to 6, wherein the composite is curved so that a non-overlapping region formed at a first side of a first blank substantially overlaps with a region of the first blank proximal to an opposing side of the first blank, to form an inner tubular member; and a non-overlapping region formed at a first side of the second blank substantially overlaps with a further region of the second blank proximal to the opposing side of the second blank to form an outer tubular member.
9. The tubular packaging container as claimed in Claim 8, wherein the composite is curved so that a free side of the non-overlapped region formed from the first blank abuts against the opposing side of the second blank.
10. A method of forming a tubular packaging container, the method comprising the steps of: forming a composite from a first blank and a second blank in a substantially co-planar, back-to-back arrangement; arranging the first blank and the second blank to partially overlap and form a two or more non-overlapping regions proximal to two or more opposing ends of the composite; curving the composite to form a tubular body; securing the non-overlapping regions of the composite together to retain the tubular body in shape; and closing the or each opening in the tubular body with a metal closing means.
Ii. The method of forming a tubular packaging container as claimed in claim 10, wherein the step of closing the one or more openings in the tubular body is performed using a can seaming process.
12. The method of forming a tubular packaging container as claimed in claim 10 or claim 11, wherein the method is preceded by a step of finishing one or more of the faces of the first and second blanks.
13. The method of forming a tubular packaging container as claimed in claim 12, wherein the step of finishing one or more of the faces of the first and second blanks comprises the step of printing to the faces or sealing or glazing or laminating the face.
14. The method of forming a tubular packaging container as claimed in any one of claims 10 to 13, wherein the step of forming the composite comprises the step of arranging the first and second blanks so that their finished faces form the externally directed faces of the composite.
15. The method of forming a tubular packaging container as claimed in any one of claims 10 to 11, wherein the step of curving the composite to form a tubular body comprises the step of defining the shape of the tubular body about a mandrel.
16. The method of forming a tubular packaging container as claimed in any one of claims 10 to 15, wherein the step of curving the composite to form a tubular body comprises the step of curving the composite so that two of the non-overlapping regions substantially overlap with each other.
17. The method of forming a tubular packaging container as claimed in any one of claims 10 to 15, wherein the step of curving the composite comprises the step of curving the composite such that; -the non-overlapping region formed at a first side of the first blank substantially overlaps with a further region of the first blank proximal to the opposing side of the first blank, to form an inner tubular member; -the non-overlapping region formed at a first side of the second blank substantially overlaps with a further region of the second blank proximal to the opposing side of the second blank to form an outer member.
18. The method of forming a tubular packaging container as claimed in claim 17, wherein the step of curving the composite further includes the step of curving the composite so that a free side of the non-overlapped region formed from the first blank abuts against the opposing side of the second blank.
19. A machine comprising means configured to perform all of the steps of the method of any one of claims 10 to 18.
GB0809229A 2007-05-30 2008-05-21 Tubular Packaging Container and Method for Making a Tubular Pakaging Container Withdrawn GB2449747A (en)

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Application Number Priority Date Filing Date Title
GBGB0710220.5A GB0710220D0 (en) 2007-05-30 2007-05-30 Tubular packaging container and method for making a tubular packaging container

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GB2449747A true GB2449747A (en) 2008-12-03

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US2848151A (en) * 1954-10-06 1958-08-19 Safe Pack Container Co Sealed container
DE2461007A1 (en) * 1974-12-21 1976-07-01 Elbatainer Kunststoff Packaging container for varying consistency goods - has one piece side section fitted with lining or lamination
US4241834A (en) * 1977-04-20 1980-12-30 Boise Cascade Corporation Composite container including a perforated label layer, and method and apparatus for forming the same
FR2644754A1 (en) * 1989-03-21 1990-09-28 Novembal Sa Rectangular package
GB2298855A (en) * 1995-03-17 1996-09-18 Renaissance Packaging Design A container

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FR978547A (en) * 1948-11-18 1951-04-16 Carnaud & Forges Improvements in the manufacture of cardboard and metal boxes
US2848151A (en) * 1954-10-06 1958-08-19 Safe Pack Container Co Sealed container
DE2461007A1 (en) * 1974-12-21 1976-07-01 Elbatainer Kunststoff Packaging container for varying consistency goods - has one piece side section fitted with lining or lamination
US4241834A (en) * 1977-04-20 1980-12-30 Boise Cascade Corporation Composite container including a perforated label layer, and method and apparatus for forming the same
FR2644754A1 (en) * 1989-03-21 1990-09-28 Novembal Sa Rectangular package
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WO2018224170A1 (en) * 2017-06-09 2018-12-13 Envican Gmbh Fluid container and method for the production thereof in accordance with demand and in a timely manner at the filling location
WO2018224658A3 (en) * 2017-06-09 2019-02-21 Envican Gmbh Pressure-resistant container
EA039845B1 (en) * 2017-06-09 2022-03-18 Энвикан Гмбх Pressure-resistant can
US11603232B2 (en) 2017-06-09 2023-03-14 Envican Gmbh Pressure-resistant container
US12116162B2 (en) 2017-06-09 2024-10-15 Envican Gmbh Pressure-resistant container

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GB0710220D0 (en) 2007-07-11

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