EP1839845B2 - A method of producing overwrap material, and a pack furnished with the material produced - Google Patents
A method of producing overwrap material, and a pack furnished with the material produced Download PDFInfo
- Publication number
- EP1839845B2 EP1839845B2 EP07104905.0A EP07104905A EP1839845B2 EP 1839845 B2 EP1839845 B2 EP 1839845B2 EP 07104905 A EP07104905 A EP 07104905A EP 1839845 B2 EP1839845 B2 EP 1839845B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- ribbon
- slit
- succession
- slits
- 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.)
- Active
Links
Images
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
- B65D75/66—Inserted or applied tearing-strings or like flexible elements
-
- 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
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/07—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles
- B65D85/08—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles rod-shaped or tubular
- B65D85/10—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles rod-shaped or tubular for cigarettes
- B65D85/1018—Container formed by a flexible material, i.e. soft-packages
- B65D85/1027—Opening devices
-
- 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
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/14—Cutting, e.g. perforating, punching, slitting or trimming
- B31B50/16—Cutting 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
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/74—Auxiliary operations
- B31B50/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
- B31B50/812—Applying tabs, patches, strips or strings on blanks or webs
- B31B50/8125—Applying strips or strings, e.g. tear strips or strings
- B31B50/8126—Applying strips or strings, e.g. tear strips or strings parallel to the direction of movement of the webs or the blanks
-
- 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
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/14—Cutting, e.g. perforating, punching, slitting or trimming
- B31B70/146—Cutting, e.g. perforating, punching, slitting or trimming using tools mounted on a drum
-
- 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
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/14—Cutting, e.g. perforating, punching, slitting or trimming
- B31B70/16—Cutting 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
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/74—Auxiliary operations
- B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
- B31B70/812—Applying patches, strips or strings on sheets or webs
- B31B70/8123—Applying strips
Definitions
- the present invention relates to a method of producing overwrap material, and to a pack covered with the material obtainable by such a method.
- the present invention relates to packs for tobacco products, typically cigarette packets, and indeed reference is made to products of this type in the following specification, albeit implying no limitation in scope.
- packets of cigarettes are provided with a protective outer wrapper of transparent heat-shrinkable material, referred to generally as overwrap material.
- Dedicated packaging machines first envelop each successive pack in the overwrap material and then apply heat to the selfsame material, causing it to tighten against the outer faces of the pack.
- the outer wrapper also incorporates a so-called tear tape or tear-off ribbon, of small transverse dimensions, by means of which the outer wrapper can be broken simply and swiftly when the moment comes to open up the pack.
- the ribbon is decoiled continuously from a roll and applied, by welding or gluing, to a strip of overwrap material moving continuously along a predetermined feed direction.
- a succession of U-shaped notches can then be fashioned in the overwrap material, placed along the line of the ribbon.
- Each notch serves to free one end of the ribbon, thereby creating a tab that can be gripped and pulled to break open the pack neatly and easily.
- the strip of wrapping material with its bonded ribbon is cut into discrete leaves, each providing one protective wrapper, and fed to the packaging machine.
- the ribbon With the wrapper in place around the finished pack, the ribbon will be positioned on the inside of the overwrap material, peripherally adjacent to one end face on all sides, in such a way that the material can be torn in a direction transverse to its longitudinal dimension.
- the ribbon is located near the top end face, so that when pulled along the tear line, the wrapper will divide into two portions: a smaller portion enveloping the end face, and a larger portion enveloping the main body of the packet.
- the object of the present invention is to provide a method of producing overwrap material, also a pack furnished with an easily removable material obtained by such a method.
- the invention relates to a method of producing overwrap material 1.
- a continuous strip of preferably transparent and heat-shrinkable overwrap material 1 is caused to advance along a predetermined feed path "P" in a predetermined direction "A".
- a predetermined area 2 of the advancing strip 1 is provided with slits or incisions 4 having a geometrical component transverse to the aforementioned direction "A".
- the step in question involves creating a succession of such slits 4 through the agency of suitable cutting or punching means 5 composed of a main roller 5a carrying a blade 6, and a matching anvil roller 5b.
- the two rollers 5a and 5b are set in contrarotation about respective axes extending transversely to the aforementioned feed direction "A".
- the blade 6 presents a profile selected according to the shape of the slit 4 and strikes against the anvil roller 5b with each rotation of the main roller 5a, producing a slit 4 at each stroke.
- a ribbon 7 of small transverse dimensions is applied to the strip of overwrap material 1; the ribbon 7 is decoiled from a roll 8, directed continuously downstream of a diverting roller 8a along a path "P1" parallel to the feed path "P”, and applied to the aforementioned area 2 of the strip in parallel alignment with the feed direction "A".
- the ribbon 7 is bonded utilizing an ultrasonic welding unit 3 of familiar type, not described in detail.
- the slits 4 are cut before applying the ribbon 7, so that the ribbon can be positioned relative to the selfsame slits.
- the ribbon 7 is shown placed over a central portion 4a of the slit 4, so that the two respective ends 4b of the slit will be located on opposite sides of the ribbon 7.
- the ribbon 7 can be placed over one end 4b of the slit 4, as illustrated clearly in figure 4 where the slits are shown staggered one from the next, or in a part of the area 2 adjacent to but not effectively coinciding with the slits 4.
- the slits 4 are cut parallel one with another and appear substantially rectilinear, extending at right angles to the feed direction "A" and to the longitudinal dimension of the ribbon 7.
- the slits 4 are cut parallel with one another and angled obliquely, relative to the longitudinal dimension of the ribbon 7.
- Figures 5 and 6 illustrate examples in accordance with the invention in which the slits 4 are generated as chevrons, each presenting a vertex 9 that coincides with the line of the ribbon 7.
- the chevron slits 4 can be disposed, as in the example of figure 5 , with the vertex 9 oriented along a tear direction "B" of the narrow ribbon.
- the selfsame slits 4 can be disposed with the vertex 9 oriented in a direction opposite to the tear direction "B" of the ribbon 7, as in figure 6 .
- the step of applying the ribbon 7 to the strip of overwrap material 1 is followed by a step of forming a U-shaped notch 10 in the aforementioned area 2 of the strip.
- the U-shaped notch 10 is positioned between two successive slits 4 of the type cut previously, and serves to create a pull tab 11 at one end of the ribbon 7, as will be described in due course.
- a succession of the U-shaped notches 10 will be generated through the agency of a further blade 12 of conventional type (not illustrated), by which the ribbon 7 is cut transversely.
- the strip of overwrap material 1 is divided up into discrete lengths, or leaves 13, which are then fed into an overwrapping unit not illustrated in the accompanying drawings, being of conventional type and only incidental to the present invention.
- the step of dividing the strip of overwrap material 1 into leaves is effected by a pair of contrarotating cutter rollers 14 equipped with respective blades 14a.
- Each leaf 13 cut by the rollers 14 presents a succession of slits 4 and one U-shaped notch 10.
- the strip of overwrap material 1 is wound onto a reel (not illustrated) for use by the overwrapping unit.
- overwrap material 1 obtained by the method thus described is utilized for packs 15 of the type illustrated in figures 7 and 8 .
- the pack 15 of figures 7 and 8 consists in a pack of cigarettes, around which the overwrap material 1 provides a protective outer wrapper 16.
- the wrapper 16 appears with the aforementioned ribbon 7 extending peripherally around one end face of the pack 15.
- the ribbon 7 is disposed with the tear direction "B" extending parallel to its own longitudinal dimension, and occupying a plane transverse to the longitudinal dimension of the pack 15.
- the wrapper 16 is opened by hand, gripping the tab 11 of the ribbon 7 and pulling. This causes the ribbon 7 to break the overwrap material 1 along the aforementioned tear direction "B" until the first slit 4 is encountered.
- This slit 4 shown perpendicular to the ribbon 7 in figure 7 , will at this point initiate two new break lines 17 departing and diverging from the line of the ribbon 7 on either side.
- wrapper 16 shown in figures 7 and 8 presents just one slit 4, according to the invention a succession of slits 4 is provided in order to facilitate the removal of the material 1, wherein the number of slits depends on the size of the pack 15.
- the pack 15 does not need to be extracted from the wrapper 16 once a tear has been made with the ribbon 7.
- the action of pulling the ribbon 7 serves also to initiate the break lines 17 and allow the wrapper 16 to be torn off completely, without the material sticking fast to the outer faces of the pack 15. Accordingly, the pack 15 is spared any damage that might be caused in the attempt to remove portions of the overwrap material 1 that continue to cling to the outer surfaces.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
- Packages (AREA)
- Wrapping Of Specific Fragile Articles (AREA)
- Wrappers (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000214A ITBO20060214A1 (it) | 2006-03-29 | 2006-03-29 | Metodo per la produzione di materiale da sovraincarto e confezione dotata del materiale cosi' prodotto. |
Publications (4)
Publication Number | Publication Date |
---|---|
EP1839845A1 EP1839845A1 (en) | 2007-10-03 |
EP1839845A8 EP1839845A8 (en) | 2007-12-19 |
EP1839845B1 EP1839845B1 (en) | 2009-10-28 |
EP1839845B2 true EP1839845B2 (en) | 2014-12-03 |
Family
ID=37998355
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07104905.0A Active EP1839845B2 (en) | 2006-03-29 | 2007-03-26 | A method of producing overwrap material, and a pack furnished with the material produced |
Country Status (6)
Country | Link |
---|---|
US (1) | US20070228040A1 (zh) |
EP (1) | EP1839845B2 (zh) |
JP (1) | JP5242930B2 (zh) |
CN (1) | CN101045344A (zh) |
DE (1) | DE602007002937D1 (zh) |
IT (1) | ITBO20060214A1 (zh) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0708692D0 (en) * | 2007-05-04 | 2007-06-13 | Innovia Films Ltd | Seelable, pealable film |
DK2147044T3 (da) * | 2007-05-24 | 2013-11-04 | Innovia Films Ltd | Film med lav emissivitet |
GB0714418D0 (en) | 2007-07-24 | 2007-09-05 | Innovia Films Ltd | UV barrier film |
WO2011091827A1 (en) * | 2010-01-28 | 2011-08-04 | Philip Morris Products S.A. | Film wrapper |
ITBO20110721A1 (it) * | 2011-12-15 | 2013-06-16 | So Te Ma Pack S R L | Confezione provvista di mezzi di lacerazione e apertura della confezione, procedimento e dispositivo utilizzabili per realizzare detta confezione. |
GB2499258A (en) * | 2012-02-13 | 2013-08-14 | British American Tobacco Co | Various Wrappers with Tear Strips for Multiple Containers |
JP6145253B2 (ja) * | 2012-06-22 | 2017-06-07 | 朋和産業株式会社 | 米飯加工食品用包装材 |
JP6046934B2 (ja) * | 2012-07-17 | 2016-12-21 | ユニテム株式会社 | 食品用包装材 |
ITBO20130086A1 (it) * | 2013-02-28 | 2014-08-29 | Gd Spa | Confezione di articoli da fumo, in particolare di sigarette, e metodo per la sua produzione. |
US9139339B2 (en) * | 2013-03-15 | 2015-09-22 | Standard Multiwall Bag Manufacturing Co. | Easy open apparatus and method for multi-ply bags |
JP6292375B2 (ja) * | 2013-11-28 | 2018-03-14 | 株式会社スズパック | おにぎり包装材及び該包装材に包装されたおにぎり包装体 |
WO2015145304A1 (en) * | 2014-03-25 | 2015-10-01 | G.D S.P.A. | Sheet of wrapping material, packet for smokable articles and method for making the sheet of wrapping material |
FR3052389B1 (fr) * | 2016-06-09 | 2018-05-18 | Esatec - Etudes Services Automatismes Techniques | Procede et equipement pour la fabrication d'un emballage et emballage ainsi realise |
JP6186524B2 (ja) * | 2017-01-30 | 2017-08-23 | 朋和産業株式会社 | 米飯加工食品用包装材 |
CN107458029B (zh) * | 2017-08-09 | 2020-06-02 | 蔡任文 | 一种塑料包装袋及其制作方法 |
CN109204930A (zh) * | 2018-09-10 | 2019-01-15 | 东莞市松研智达工业设计有限公司 | 一种快速粉笔自动贴膜机器人 |
JP7324629B2 (ja) * | 2019-07-10 | 2023-08-10 | 朋和産業株式会社 | カットテープ貼着装置及びカットテープ付きシート原反の製造方法 |
IT202000032222A1 (it) | 2020-12-23 | 2022-06-23 | Gd Spa | Pacchetto di articoli da fumo con coperchio incernierato e provvisto di un sovraincarto. |
IT202000032231A1 (it) | 2020-12-23 | 2022-06-23 | Gd Spa | Pacchetto di articoli da fumo provvisto di un sovraincarto indebolito. |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2730025A1 (de) † | 1977-07-02 | 1979-01-18 | Ilsemann Heino | Verpackungsfolie |
GB2135651A (en) † | 1983-02-18 | 1984-09-05 | Kanari Tani | Easy-to-open synthetic resin bag and apparatus for the manufacture thereof |
US4676047A (en) † | 1985-03-29 | 1987-06-30 | Japan Tobacco Inc. | Apparatus for forming a tab on a tape for tearing a packing film |
DE8715168U1 (de) † | 1987-11-14 | 1988-01-21 | Basf Ag, 67063 Ludwigshafen | Verpackung für Gegenstände, insbesondere von Quaderform |
DE68902046T2 (de) † | 1988-12-27 | 1993-01-07 | Eaux Minerales D Evian Des | Verfahren und vorrichtung zum herstellen einer leicht zu oeffnenden kunststoffolien-verpackung sowie so hergestellte verpackung. |
EP1666376A1 (en) † | 2004-12-03 | 2006-06-07 | Philip Morris Products S.A. | Easy opening of film wrapper |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB528602A (en) * | 1939-05-10 | 1940-11-01 | John Cartner | Improvements in and relating to cartons |
US2334381A (en) * | 1940-02-20 | 1943-11-16 | Wilhelm B Bronander | Method of making tear strip wrappers |
US2307667A (en) * | 1940-03-16 | 1943-01-05 | Package Machinery Co | Wrapped package with rip cord |
DE1016547B (de) * | 1952-02-15 | 1957-09-26 | Iacellophaneia Invest Company | Verfahren zum Herstellen eines mit Aufreissvorrichtung versehenen Beutels aus folienartigem Material |
DE1079938B (de) * | 1958-03-29 | 1960-04-14 | Scandia Packaging Mach | Maschine zum Herstellen von mit Aufreissstreifen versehenem Verpackungsmaterial |
US3379364A (en) * | 1966-07-07 | 1968-04-23 | Reynolds Metals Co | Package means |
US3761012A (en) * | 1971-05-26 | 1973-09-25 | Burt & Co F N | Cartons |
GB1423152A (en) * | 1972-11-17 | 1976-01-28 | Schmermund A | Method of and device for providing a web of packaging material with a tear strip |
DE3120332C2 (de) * | 1981-05-22 | 1985-05-23 | Focke & Co, 2810 Verden | Vorrichtung zum Anbringen von Aufreißbändchen an kontinuierlich bewegte Zuschnitte aus Verpackungsmaterial |
JPS5823077U (ja) * | 1981-08-03 | 1983-02-14 | 日立マクセル株式会社 | カセツト収納箱の包装体 |
JPS6038259U (ja) * | 1983-04-18 | 1985-03-16 | ソニー株式会社 | 包装装置 |
IT1207615B (it) * | 1987-02-23 | 1989-05-25 | Gd Spa | Dispositivo di intaglio per strisce di materiale di incarto |
US4785696A (en) * | 1987-04-03 | 1988-11-22 | Kraft, Inc. | High-speed apparatus for forming sheets from a web |
US4947994A (en) * | 1988-05-25 | 1990-08-14 | Scepter Manufacturing Company Limited | Container wrapper, and methods and apparatus for making same |
DE4226640A1 (de) * | 1992-08-12 | 1994-02-17 | Hoechst Ag | Zigarettenverpackung aus Kunststoffolie |
US5489060A (en) * | 1993-09-14 | 1996-02-06 | Kraft General Foods France | Reclosable packet |
US6550229B2 (en) * | 2001-01-12 | 2003-04-22 | Sealed Air Corporation (Us) | Device for sealing two plies of film together, particularly for enclosing a foamable composition in a flexible container |
GB0204602D0 (en) * | 2002-02-27 | 2002-04-10 | Ucb Sa | Packaging methods and packs made thereby |
-
2006
- 2006-03-29 IT IT000214A patent/ITBO20060214A1/it unknown
-
2007
- 2007-03-23 JP JP2007076561A patent/JP5242930B2/ja not_active Expired - Fee Related
- 2007-03-26 DE DE602007002937T patent/DE602007002937D1/de active Active
- 2007-03-26 EP EP07104905.0A patent/EP1839845B2/en active Active
- 2007-03-28 CN CNA2007100916874A patent/CN101045344A/zh active Pending
- 2007-03-29 US US11/727,990 patent/US20070228040A1/en not_active Abandoned
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2730025A1 (de) † | 1977-07-02 | 1979-01-18 | Ilsemann Heino | Verpackungsfolie |
GB2135651A (en) † | 1983-02-18 | 1984-09-05 | Kanari Tani | Easy-to-open synthetic resin bag and apparatus for the manufacture thereof |
US4676047A (en) † | 1985-03-29 | 1987-06-30 | Japan Tobacco Inc. | Apparatus for forming a tab on a tape for tearing a packing film |
DE8715168U1 (de) † | 1987-11-14 | 1988-01-21 | Basf Ag, 67063 Ludwigshafen | Verpackung für Gegenstände, insbesondere von Quaderform |
DE68902046T2 (de) † | 1988-12-27 | 1993-01-07 | Eaux Minerales D Evian Des | Verfahren und vorrichtung zum herstellen einer leicht zu oeffnenden kunststoffolien-verpackung sowie so hergestellte verpackung. |
EP1666376A1 (en) † | 2004-12-03 | 2006-06-07 | Philip Morris Products S.A. | Easy opening of film wrapper |
WO2006058864A1 (en) † | 2004-12-03 | 2006-06-08 | Philip Morris Products S.A. | Easy opening of film wrapper |
Also Published As
Publication number | Publication date |
---|---|
EP1839845B1 (en) | 2009-10-28 |
EP1839845A8 (en) | 2007-12-19 |
DE602007002937D1 (de) | 2009-12-10 |
JP2007261689A (ja) | 2007-10-11 |
CN101045344A (zh) | 2007-10-03 |
ITBO20060214A1 (it) | 2006-06-28 |
JP5242930B2 (ja) | 2013-07-24 |
EP1839845A1 (en) | 2007-10-03 |
US20070228040A1 (en) | 2007-10-04 |
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