GB2261421A - Tubular package with tear-open strip - Google Patents
Tubular package with tear-open strip Download PDFInfo
- Publication number
- GB2261421A GB2261421A GB9223874A GB9223874A GB2261421A GB 2261421 A GB2261421 A GB 2261421A GB 9223874 A GB9223874 A GB 9223874A GB 9223874 A GB9223874 A GB 9223874A GB 2261421 A GB2261421 A GB 2261421A
- Authority
- GB
- United Kingdom
- Prior art keywords
- package
- tear
- open
- longitudinal seam
- strip
- 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- Withdrawn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
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract 5
- 239000005022 packaging material Substances 0.000 claims abstract 4
- 238000007373 indentation Methods 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 8
- 239000011888 foil Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000004806 packaging method and process Methods 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 235000015895 biscuits Nutrition 0.000 abstract description 2
- 235000019219 chocolate Nutrition 0.000 abstract description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 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
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/52—Details
- B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
- B65D75/5805—Opening or contents-removing devices added or incorporated during package manufacture for tearing a side strip parallel and next to the edge, e.g. by means of a line of weakness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
- B65B61/18—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements
- B65B61/182—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements by applying tear-strips or tear-tapes
Abstract
A tubular package, more particularly for foodstuffs such as biscuits and chocolate, is sealed with a longitudinal seam 2' and two transverse seams 3, which are provided with tear-open notches 7. Arranged within the tubular package are two tear-open strips 6 which extend approximately parallel to the longitudinal seam 2'. To facilitate opening the package, the distance between the outer edge 8 of the tear-open strip 6 and the adjacent outer edge 9 of the package is less than four times the width 13 of the tear-open strip 6 (and preferably also less than half the article thickness). A method for manufacturing such packages is also provided, wherein the tear open strips 6 are applied to the packaging material before it is folded into a tube and the package formed. <IMAGE>
Description
) 1 13 1 ', -1 11 C. -,.. i TUBULAR PACKAGE WITH A TEAR-OPEN AID This
invention relates to a tubular package with a tear-open aid, more particularly for foodstuff articles.
Packaging for articles such as biscuits or blocks of chocolate made from a foil wrapper having longitudinal and transverse seams and comprising additional reinforcing strips and/or tear-open aids as well as weakening lines, is generally known. However, packaging of this type still often proves to be relatively complicated, and awkward to open.
It is an object of the invention to provide a tubular package of the type referred to above which is easy to open.
According to this invention there is provided a tubular package having a longitudinal seam and two seams extending transversely of the longitudinal seam, which seams jointly seal the package, tear-open notches being formed at the ends of the package, tear-open strips arranged within the package and extending approximately parallel to the longitudinal seam, characterised in that two tear-open strips are provided with the end of the longitudinal seam between them in such a manner that the distance between the outer edge of each tear-open strip and the adjacent outer edge of the package in the region of the transverse seams is less than four times the width B of the tear-open strip.
The packages described and illustrated above not only have the advantage of being capable of being easily torn open without the need for locating manoeuvres, and can therefore be opened in the dark, for exampbe when watching television, in the car, cinema, etc., but are also much less complicated in terms of manufacturing technology, since the package can be produced using less material than packaging having four folding edges and four tear-open threads. This also has a positive effect in respect of costs and environmental protection conditions.
The invention will now be described in further detail with reference by way of example to the accompanying drawings, in which:
Figure 1 is a perspective view of a first form of package according to the invention, Figure 2 is a detail of an end of the package of Figure 1, Figure 3 is a perspective view of a second form of package according to the invention.
Figure 4 is a detail of an end of the package of Figure 3, Figure 5 is a schematic illustration of a machine for manufacturing packages according to the invention, Figure 6 is a perspective view of a third form of package according to the invention, and Figure 7 is a detail of the ends of the package of Figure 6.
The tubular package shown in Figure 1, which contains an approximately round foodstuff article 1, has a longitudinal seam 2 and two seams 3 and 4 which extend transversely of the longitudinal seam and which seal the tubular package at each end. The package is provided with two tear-open strips 5, 6, which are arranged within said package and extend approximately parallel to the longitudinal seam 2.
It can be seen from Figure 2 that the individual package is provided at its ends with a plurality of multiple tearing notches 7, for example zigzag indentations. The distance between the outer edge 8 of the tear-open strip 6 and the outer edge 9 of the tubular package is relatively small, preferably less than half the article distance D (Figure 4) and less than four times the width B of the tear-open strip.
It was found that the resulting package can be particularly easily opened if the longitudinal seam end 2' (Figure 2) or 12' (Figure 3) is arranged between the two tear-open strips in such a manner that the distance between the outer edge 8 of a tear-open strip 6 and the outer edge 9 of the package at least in the region of the four transverse seam ends is less than four times the width B of the tear-open strip 6. It was surprisingly found that a package of this type can always be torn open in such a manner that entire articles 1 or at least parts broken off at the indentations 10 (Figure 3) can be easily removed from the package. With this design of the package, only two tear-open strips are necessary, so that excellent sealing of the package can be obtained. It is also easily possible to additionally seal the tear-open strips.
The tubular package shown in Figure 3, which contains a single article of foodstuff 11 capable of being broken for example into four pieces by means of three indentations 10, has a longitudinal seam 12 and two transverse seams 13 and 14 which extend transversely of the longitudinal seam and seal the package at one end in each case. The package is provided with two tear-open strips 15, 16, which are arranged within said package and extend approximately parallel to the longitudinal seam 12.
It can be seen from Figure 4 that the individual package is provided at its ends with a plurality of multiple tearing notches 17. The distance between the outer edge 18 of the tear-open strip 16 and the outer edge 19 of the package in the region of the transverse seams 13, 14 is relatively small, preferably less than half the article thickness D and less than 4 four times the width B of the tear-open strip.
The machine illustrated in Figure 5 comprises two large rollers 51 and 52 and two small supply rollers 53 and 54, from which the material 55 of the package and the tear-open strips 56 and 56' respectively are drawn. The products to be packaged are guided by a conveyor 57 to the packaging station 58, the tear-open strips firstly being applied to the material of the packages before it is formed into a tube folded around the products. The longitudinal seam is then formed. In a further station 59, the transverse seam, the division into separate packages and the indentation are subsequently produced.
As the wrapping material, an APP-foil (aligned polypropylene) metallized on one side and having a thickness of between 0.030 and 0.050 mm can be used; it is also possible to provide the foil only on one side with a cold seal coating. The tear-open strip can be a foil of viscose, aligned polypropylene (APP) or polyester, coated on one side with adhesive and having a width of, for example, between 1.5 and 4 mm. As shown in Figure 3, all four tear-open strip ends can be provided with an additional sealing agent, for example with hot melt application spots 20, 21, 22, 23, in order to increase sealing tightness. This application is effected with the aid of the device 55' (Figure 5) to the foil or the two tear-open strips 56 and 56'. The weakening lines of the transverse seams can be formed by zig-zag cuts 17 (Figure 3) or by at least one single V-cut 17' or 17" according to Figure 6, depending on the shape of the dividing blade cutting the fins 3 and 4 or 13 and 14.
Thus, the package preferably has at least four indentations between the two tear-open strips. It is also however possible to design these indentations as four straight cuts 71, 71', 72, 72' according to - 5 Figure 7. In order to prevent the tolerances of the tear-open strip and indentation arrangement impairing the efficiency of the tear-open aid, the distance between the indentations and the inner edge of the tear-open strip is preferably at least equal to a single tear-open strip width.
- 6
Claims (14)
1. A tubular package having a longitudinal seam and two seams extending transversely of the longitudinal seam, which seams jointly seal the package, tear-open notches being formed at the ends of the package, tearopen strips arranged within the package and extending approximately parallel to the longitudinal seam, characterised in that two tear-open strips are provided with the end of the longitudinal seam between them in such a manner that the distance between the outer edge of each tear-open strip and the adjacent outer edge of the package in the region of the transverse seams is less than four times the width B of the tear-open strip.
2. A package according to claim 1, wherein the distance between the outer edge of the tear-open strip and the adjacent outer edge of the package in the region of the transverse seams is less than half the article thickness (D).
3. A package according to claim 1 or claim 2, wherein the material from which the package is made is an aligned polypropylene foil.
4. A package according to any one of claims 1 to 3, wherein the tear-open strip has a sealing coating on both sides.
5. A package according to any one of claims 1 to 4, wherein all four tear-open strip ends are provided with an additional sealing agent in order to increase sealing tightness.
6. A package according to any one of claims 1 to 5, wherein indentations are formed in the transverse seams by a zig-zag cut.
7. A package according to claim 4, wherein the V-cuts of the zig-zag indentations at opposite ends of the package are longitudinally aligned.
7 -
8. A method for manufacturing a series of packages each according to any one of claims 1 to 7, characterized by the following method steps: withdrawal of the packaging material in sheet form from a roller, application of tear-open strips to the packaging material, folding of the sheet material into a tubular form, insertion of the articles into the tube, formation of the longitudinal seam in the tube, formation of the transverse seams in the tube, division and indentation.
9. A method for manufacturing tubular bag packaging according to claim 8, characterized by the application of additional sealing agent to the packaging material.
10. A method according to claim 9, characterized by the application of additional sealing agent to the tear-open strips.
A package according to claim 1, wherein at least four indentations are arranged between the two tear-open strips.
12. A package according to claim 11, wherein the indentations are four straight cuts.
13. A package according to claim 11, wherein the distance between the indentations and the inner edge of the tearopen strip is at least equal to a single tear-open strip width.
14. A package substantially as hereinbefore described with reference to and as illustrated in Figures 1 and 2, or Figures 3 and 4, or Figures 6 and of the accompanying drawings.
7
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH3333/91A CH684264A5 (en) | 1991-11-15 | 1991-11-15 | Pouch-type package with perforation. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9223874D0 GB9223874D0 (en) | 1993-01-06 |
| GB2261421A true GB2261421A (en) | 1993-05-19 |
Family
ID=4253708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9223874A Withdrawn GB2261421A (en) | 1991-11-15 | 1992-11-13 | Tubular package with tear-open strip |
Country Status (5)
| Country | Link |
|---|---|
| CH (1) | CH684264A5 (en) |
| DE (1) | DE4238411A1 (en) |
| GB (1) | GB2261421A (en) |
| IT (1) | IT1258711B (en) |
| NL (1) | NL9201980A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0997394A1 (en) * | 1998-10-28 | 2000-05-03 | The Procter & Gamble Company | A package with child deterrent means |
| US8092674B2 (en) | 2008-08-08 | 2012-01-10 | Passavant-Geiger Gmbh | Traveling band screen machine |
| WO2012127479A1 (en) * | 2011-03-21 | 2012-09-27 | Mukul Chandra Gope | An improved method of packing edibles |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4432413A1 (en) * | 1994-08-31 | 1996-03-07 | Hubert Dworan | Biscuits with a chocolate, ice cream or jam filling |
| DE19800509C2 (en) * | 1998-01-09 | 2002-01-17 | Henkel Kgaa | Packaging for tablet-shaped objects |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3968926A (en) * | 1970-10-26 | 1976-07-13 | Agfa-Gevaert N.V. | Tearstrip package |
| EP0453105A2 (en) * | 1990-03-27 | 1991-10-23 | Hayssen Manufacturing Company | Packaging with tear string and resealable closure |
| EP0490822A1 (en) * | 1990-12-10 | 1992-06-17 | SIG Schweizerische Industrie-Gesellschaft | Tubular bag package with tear aid |
-
1991
- 1991-11-15 CH CH3333/91A patent/CH684264A5/en not_active IP Right Cessation
-
1992
- 1992-11-12 NL NL9201980A patent/NL9201980A/en not_active Application Discontinuation
- 1992-11-13 DE DE4238411A patent/DE4238411A1/de not_active Withdrawn
- 1992-11-13 GB GB9223874A patent/GB2261421A/en not_active Withdrawn
- 1992-11-13 IT ITTO920923A patent/IT1258711B/en active IP Right Grant
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3968926A (en) * | 1970-10-26 | 1976-07-13 | Agfa-Gevaert N.V. | Tearstrip package |
| EP0453105A2 (en) * | 1990-03-27 | 1991-10-23 | Hayssen Manufacturing Company | Packaging with tear string and resealable closure |
| EP0490822A1 (en) * | 1990-12-10 | 1992-06-17 | SIG Schweizerische Industrie-Gesellschaft | Tubular bag package with tear aid |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0997394A1 (en) * | 1998-10-28 | 2000-05-03 | The Procter & Gamble Company | A package with child deterrent means |
| US8092674B2 (en) | 2008-08-08 | 2012-01-10 | Passavant-Geiger Gmbh | Traveling band screen machine |
| WO2012127479A1 (en) * | 2011-03-21 | 2012-09-27 | Mukul Chandra Gope | An improved method of packing edibles |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4238411A1 (en) | 1993-05-19 |
| ITTO920923A1 (en) | 1994-05-13 |
| NL9201980A (en) | 1993-06-01 |
| IT1258711B (en) | 1996-02-27 |
| CH684264A5 (en) | 1994-08-15 |
| ITTO920923A0 (en) | 1992-11-13 |
| GB9223874D0 (en) | 1993-01-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |