GB2441523A - Food carton opened by severance of lines of weakness - Google Patents
Food carton opened by severance of lines of weakness Download PDFInfo
- Publication number
- GB2441523A GB2441523A GB0617488A GB0617488A GB2441523A GB 2441523 A GB2441523 A GB 2441523A GB 0617488 A GB0617488 A GB 0617488A GB 0617488 A GB0617488 A GB 0617488A GB 2441523 A GB2441523 A GB 2441523A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lid
- container
- carton
- walls
- corner
- 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- Withdrawn
Links
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000012780 transparent material Substances 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 241000274582 Pycnanthus angolensis Species 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000011087 paperboard Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 239000004626 polylactic acid Substances 0.000 description 1
- 239000011099 solid bleached board Substances 0.000 description 1
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
- 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
- B65D5/20—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-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
- B65D5/24—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-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds
-
- 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
- B65D5/20—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-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
- B65D5/24—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-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds
- B65D5/241—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-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds and the gussets folds connected to the inside of the container body
-
- 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
- B65D5/4204—Inspection openings or windows
-
- 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
- B65D5/54—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing
- B65D5/545—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a "cross-like" blank
- B65D5/5455—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a "cross-like" blank the lines of weakness being provided in a closure hinged to an edge of the container body
-
- 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
- B65D5/54—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing
- B65D5/545—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a "cross-like" blank
- B65D5/546—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a "cross-like" blank the lines of weakness being provided in an extension panel or tab of a hinged closure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cartons (AREA)
Abstract
A carton for holding food or other commodities comprises a box form container 10 formed from a on piece cardboard blank. The container has a rectangular base 11 with folded up front 15, back 17, and sidewalls 16 having out-turned flanges 19, 20, 21 at their upper edges, and a lid 23 hinged to the back wall 17. The back wall 17 has an outer periphery which overlies said flanges 19, 20, 21 so that front and side edge portions of the lid 23 can be secured to the flanges 19, 20, 21 to close the carton. The lid 23 has lines of weakness 27 extending from a front edge of the lid inside the side edge portions towards the hinge whereby when the lid 23 is lifted to open the container 10, the central portion of the lid within the side edge portions separates along the lines of weakness 27 leaving the frame along the sides and back of the lid 23 adhered to flanges 19, 20, 21 of the sidewalls 16 to support the walls of the container 10. The container 10 may have a window which allows the contents to be viewed.
Description
-1 2441523
IMPROVEMENTS IN OR RELATING TO CARTONS FOR HOLDING
FOOD OR OTHER CONMODITIES
This invention relates to cartons for holding food or other commodities.
The invention provides a carton for holding food or other commodities comprising a box form container formed from a one piece cardboard blank, the container having, a rectangular base with folded up front back and side walls having out-turned lateral flanges at their upper edges, and a lid hinged to the back wall having an outer periphery overlying said flanges so that front and side edge positions of the lid can be secured to the flanges to close the carton, the lid having lines of weakness extending from a front edge of the lid inside the side edge positions towards the hinge whereby when the lid is lifted to open the container the central portion of the lid within the side edge positions separates along the lines of weakness leaving the frame along the sides and back of the lid adhered to flanges of the side walls to support the walls of the container.
The front edges of the lid preferably has notches leading into the lines of weakness to assist the central portion in detaching from the side edge portions of the lid.
In the latter arrangement the corners of the blank each have a square portion hinged to the adjacent walls and having a diagonal hinge extending from the corner of the base to fold inwardly when the walls are folded up and to be adhered to one of the walls to assist in supporting the side walls.
More specifically the square portion at each corner may have at least one tab which projects upwardly when the corner portion is folded inwardly between the side walls, the tab being folded over the flange of one of the side walls to be adhered with the peripheral frame of the lid to the flange to assist in supporting the side walls.
S For example the folded in square portion at each corner is folded alongside one of the walls at the corner, the inner part of the portion is adhered to that wall of the corner and the outer part has the projecting tab which is adhered to the flange of that wall to support the walls at the corner.
In any of the above arrangements the central portion of the lid of the container may have a window to enable the goods in the container to be viewed.
By way of example the window may be formed by an aperture in the lid and a sheet of transparent material may be adhered to the lid across the aperture.
The following is a description of some specific
embodiments of the invention, reference being made to the accompanying drawings in which: Figure 1 is a perspective view of a food pack in the form of a box form container formed from a one piece cardboard blank and having an openable lid with a viewing window; Figure 2 shows a blank cut from a web of cardboard material; Figure 3 shows the blank folded for stacking prior to erection and filling; Figure 4 is a perspective view of the container partially erected; Figure 5 is a perspective view of the container ready for closing and sealing of the lid; Figure 6 is a perspective view of the container with the lid partially opened; and Figure 7 is a perspective view of the container partially folded for stacking.
Referring firstly to Figure 1 of the drawings there is shown a square shaped box indicated generally at 10 formed from a cardboard blank. For a "standard" box, the board used is a polyethylene coated folding box board (FFB), a polyethylene coated kraft (brown board) or a polyethylene coated solid bleached sulphate board (SBS). By way of example the board may be a 400 micron thick folding box board with a 15 g polyethylene coating on one face to be on the inner side of the box. The blank includes a square base 11 having a front edge 12, side edges 13 and a back edge 14.
A front wall 15 of the box extends along the front edge 12, side walls 16 of the box extend along the side edges 13 and a back wall 17 of the box extends along the back edge 14.
The front wall 15 of the box has an upper edge 18 and an out-turned flange 19 is formed along the upper edge. The side walls 16 of the box have upper edges 20 along which cut-turned flanges 21 extend. The back wall has an upper edge 22 from which a lid 23 for the box extends to close the box. An elongated aperture 24 is formed in the lid 23 and extends into the upper part of the back wall 17 as indicated at 25. A strip of transparent plastics film 26 is secured to the inside face of the lid to form a window through which the contents of the box may be viewed. By way of example the film may be a 36 micron thick polyester film having an anti-mist coating.
The lid 23 is formed with lines of weakness 27 extending parallel to the side edgesof the lid and aligned with the side walls 16 of the box and notches may be formed where the lines of weakness meet the front edge of the lid.
The lid overlies the front 19 and side flanges 21 and is heat sealed to the flanges to seal the box closed after filling to preserve the contents of the box. The lid has a projecting tab 40 which is grasped to open the lid and the lid is pulled upwardly and rearwardly leaving the lid through the lines of weakness leaving the outer portions of the lid secured to the flanges of the side walls to help stiffen and support the side walls. The lines of weakness in the lid may be formed by continuous partial cut lines in the lid, discontinuous full cut lines, or lines of weakness created by the "Concora" system. In this case each line of weakness comprises a pair of parallel lines of partial sever are formed in opposed sides of the lid by oppositely facing cutting strips. The lid splits between the parallel cuts when it is torn open leaving edge portions of the lid on the side flanges 21 as described earlier.
Reference is now made to the one piece blank illustrated in Figure 2 of the drawings from which the box is formed. As indicated earlier the cardboard has a heat-ea1able material coated on the surface of the card which is on the inside of the box to enable the underside of the lid of the box to be heat-sealed to the upwardly facing surfaces of the out-turned flanges on the front and side walls.
It will be noted that at each corner of the base 11 there are square corners 30 between the front and side walls 15, 16 and between the back and side walls 17, 16. The corner pieces are formed with diagonal fold lines 31 extending from the corners of the base to the opposed corners of the pieces 30. When the front wall 15 and side walls 16 are folded upwardly to form the box, the corner pieces are folded inwardly about the diagonal fold lines 3].
and the fold lines between the corner pieces and respective side and front walls to form triangular shaped gussets lying alongside the side walls 16 of the box to create the bottom tray of the box. The gussets are adhered by glue to the inside faces of the side walls 16 to hold the front, back and side walls together to form the tray of the box.
It will be understood that the erected box is not readily stackable before filling and closure in its erect form. To enable the box to be conveniently folded flat for compact stacking, each side wall 16 is formed with angled fold lines 35 extending from the corners of the base to which the side wall is hinged and converging towards the upper edge of the side walls. The fold lines 35 enable the front wall 15 to be folded downwardly over the base about the fold line 35 and likewise the back wall 17 and with it the lid 23 to be folded downwardly over the base to form the folded container as illustrated in Figure 3.
Figure 4 of the drawings shows the container partially erected after folding with the front wall 15.
The flanges 18 on the front wall and 21 on the side walls are folded outwardly and the outer edge portions of the lid are heat-sealed to the flanges to close the box once the food item or items have been placed in the box. The box then forms a sealed enclosure for the food items for use at point of sale and which protect the food items from deterioration as a result of contact with the atmosphere.
The box thus provides an easily erected and sealed container capable of preserving food item or items from contact with the atmosphere and enables the food items to be viewable by perspective purchasers.
It is also possible to form the box from a "compostable" board having heat sealing, moisture and grease resistance. For example, a board sold under the name "Tecta Vapour" 410 microns thick is suitable. The film for the S window to be used in conjunction with this board would be polylactic acid (PLA) with an anti-mist coating if required.
A 40 micron thickness film is suitable.
A laminated board can also be used such as a packaging board of 150 gsm to 500 gsm with a film laminated to it.
For example a 400 micron folding box board may be used having a 20 micron polylactic film laminated to the board.
Claims (8)
- CLAIMS: 1. A carton for holding food or other commodities comprising abox form container formed from a one piece cardboard blank, the container having a rectangular base with folded up front back and side walls having out-turned flanges at their upper edges, and a lid hinged to the back wall having an outer periphery overlying said so that front and side edge portions of the lid can be secured to the flanges to close the carton, the lid having lines of weakness extending from a front edge of the lid along the inner peripheries of the side edge portions towards the hinge whereby when the lid is lifted to open the container the central portion of the lid within the side edge portions separates along the lines of weakness leaving the side edge portions of the lid secured to the flanges of the side walls to support the side walls of the container erect.
- 2. A carton as claimed in claim 1, wherein the front edges of the lid having notches leading into the lines of weakness to assist the central portion in detaching from the de edge portions of the lid.
- 3. A carton as claimed in claim 1 or claim 2, wherein the corners of the blank each have a square portion hinged to the adjacent walls and having a diagonal hinge extending from the corner of the base to fold inwardly when the walls are folded up and to be adhered to one of the walls to assist in supporting the side walls.
- 4. A carton as claimed in claim 3, wherein the square portion at each corner has at least one tab which projects upwardly when the corner portion is folded inwardly between the side walls, the tab being folded over the flange of one of the side walls to be adhered with the peripheral frame of the lid to the flange to assist in supporting the side walls.
- 5. A carton as claimed in claim 4, wherein the folded in square portion at each corner is folded alongside one of the walls at the corner, the inner part of the portion is adhered to that wall of the corner and the outer part has the projecting tab which is adhered to the flange of that wall to support the walls at the corner.
- 6. A carton as claimed in any of the preceding claims, wherein the central portion of the lid of the container has a window to enable the goods in the container to be viewed.
- 7. A carton as claimed in claim 6, wherein the window is formed by an aperture in the lid and a sheet of transparent material adhered to the lid over the aperture.
- 8. A carton substantially as described with reference to and as illustrated in the accompanying drawings.744S4r OCB; XMl
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0617488A GB2441523A (en) | 2006-09-05 | 2006-09-05 | Food carton opened by severance of lines of weakness |
PCT/GB2007/003348 WO2008029134A1 (en) | 2006-09-05 | 2007-09-05 | Improvements in or relating to cartons for holding food or other commodities |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0617488A GB2441523A (en) | 2006-09-05 | 2006-09-05 | Food carton opened by severance of lines of weakness |
Publications (2)
Publication Number | Publication Date |
---|---|
GB0617488D0 GB0617488D0 (en) | 2006-10-18 |
GB2441523A true GB2441523A (en) | 2008-03-12 |
Family
ID=37232415
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0617488A Withdrawn GB2441523A (en) | 2006-09-05 | 2006-09-05 | Food carton opened by severance of lines of weakness |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB2441523A (en) |
WO (1) | WO2008029134A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2499009A (en) * | 2012-02-02 | 2013-08-07 | Colpac Ltd | Tear opening means for a paperboard container |
DE102013114713A1 (en) * | 2013-12-20 | 2015-06-25 | Van Genechten Packaging N.V. | Folding box and carton blank for producing the folding box |
WO2016076706A1 (en) * | 2014-11-14 | 2016-05-19 | Bioboxx B.V. | Layout and box folded from the layout suitable for waste |
GB2536893A (en) * | 2015-03-30 | 2016-10-05 | Coveris Flexibles Uk Ltd | A carton |
GB2525924B (en) * | 2014-05-09 | 2017-03-01 | William Page Roland | Improved blanks and/or containers for food |
EP3763636A1 (en) * | 2019-07-09 | 2021-01-13 | Société Générale D'Équipement De Restauration | Packaging for heating a product, electromagnetic induction oven and heating method |
EP3912922A1 (en) * | 2020-05-20 | 2021-11-24 | Sorting | Packaging and packing method allowing viewing of foodstuffs |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3298595A (en) * | 1965-07-23 | 1967-01-17 | Container Corp | Carton having economical opening construction |
GB2041884A (en) * | 1979-02-22 | 1980-09-17 | Bemrose Uk Ltd | Cartons |
US4312451A (en) * | 1979-07-20 | 1982-01-26 | Westvaco Corporation | Self standing flanged tray with integral lid |
JP2001240041A (en) * | 2000-02-25 | 2001-09-04 | Shuei:Kk | Packaging container made of paper |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3315873A (en) * | 1961-01-09 | 1967-04-25 | John Strange Carton Company | Recloseable package |
US4183458A (en) * | 1978-01-18 | 1980-01-15 | American Can Company | Tray having hinged, recloseable lid with locking feature |
US4930639A (en) * | 1989-08-02 | 1990-06-05 | Westvaco Corporation | Ovenable food container with removable lid |
-
2006
- 2006-09-05 GB GB0617488A patent/GB2441523A/en not_active Withdrawn
-
2007
- 2007-09-05 WO PCT/GB2007/003348 patent/WO2008029134A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3298595A (en) * | 1965-07-23 | 1967-01-17 | Container Corp | Carton having economical opening construction |
GB2041884A (en) * | 1979-02-22 | 1980-09-17 | Bemrose Uk Ltd | Cartons |
US4312451A (en) * | 1979-07-20 | 1982-01-26 | Westvaco Corporation | Self standing flanged tray with integral lid |
JP2001240041A (en) * | 2000-02-25 | 2001-09-04 | Shuei:Kk | Packaging container made of paper |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2499009A (en) * | 2012-02-02 | 2013-08-07 | Colpac Ltd | Tear opening means for a paperboard container |
DE102013114713A1 (en) * | 2013-12-20 | 2015-06-25 | Van Genechten Packaging N.V. | Folding box and carton blank for producing the folding box |
GB2525924B (en) * | 2014-05-09 | 2017-03-01 | William Page Roland | Improved blanks and/or containers for food |
WO2016076706A1 (en) * | 2014-11-14 | 2016-05-19 | Bioboxx B.V. | Layout and box folded from the layout suitable for waste |
NL2013818B1 (en) * | 2014-11-14 | 2016-10-07 | Bioboxx Trading B V | Box and box holding frame suitable for waste. |
US10717561B2 (en) | 2014-11-14 | 2020-07-21 | Bioboxx Trading B.V. | Layout and box folded from the layout suitable for waste |
GB2536893A (en) * | 2015-03-30 | 2016-10-05 | Coveris Flexibles Uk Ltd | A carton |
GB2536893B (en) * | 2015-03-30 | 2017-08-09 | Coveris Flexibles Uk Ltd | A Carton with Improved Opening Mechanism |
EP3763636A1 (en) * | 2019-07-09 | 2021-01-13 | Société Générale D'Équipement De Restauration | Packaging for heating a product, electromagnetic induction oven and heating method |
EP3912922A1 (en) * | 2020-05-20 | 2021-11-24 | Sorting | Packaging and packing method allowing viewing of foodstuffs |
WO2021234232A1 (en) * | 2020-05-20 | 2021-11-25 | Sorting | Package and packaging method enabling the viewing of foodstuffs |
FR3110556A1 (en) * | 2020-05-20 | 2021-11-26 | Sorting | Packaging and associated packaging method |
Also Published As
Publication number | Publication date |
---|---|
GB0617488D0 (en) | 2006-10-18 |
WO2008029134A1 (en) | 2008-03-13 |
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