EP2257480A1 - Device for easily opening packaging - Google Patents
Device for easily opening packagingInfo
- Publication number
- EP2257480A1 EP2257480A1 EP09719001A EP09719001A EP2257480A1 EP 2257480 A1 EP2257480 A1 EP 2257480A1 EP 09719001 A EP09719001 A EP 09719001A EP 09719001 A EP09719001 A EP 09719001A EP 2257480 A1 EP2257480 A1 EP 2257480A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- film
- tearing
- pellet
- incision
- label
- 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.)
- Granted
Links
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 28
- 239000008188 pellet Substances 0.000 claims abstract description 128
- 239000000853 adhesive Substances 0.000 claims abstract description 91
- 230000001070 adhesive effect Effects 0.000 claims abstract description 90
- 238000005520 cutting process Methods 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 23
- 239000000203 mixture Substances 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 9
- 229920006257 Heat-shrinkable film Polymers 0.000 claims description 8
- 235000013305 food Nutrition 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 7
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 239000002654 heat shrinkable material Substances 0.000 claims description 3
- 238000007790 scraping Methods 0.000 description 20
- 239000002390 adhesive tape Substances 0.000 description 8
- 238000005453 pelletization Methods 0.000 description 7
- 239000003292 glue Substances 0.000 description 6
- 229910000679 solder Inorganic materials 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 5
- 230000032798 delamination Effects 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 235000013351 cheese Nutrition 0.000 description 3
- 238000010494 dissociation reaction Methods 0.000 description 3
- 230000005593 dissociations Effects 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000003826 tablet Substances 0.000 description 3
- 239000004821 Contact adhesive Substances 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000002372 labelling Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000002966 varnish Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 230000002089 crippling effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007937 lozenge Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920006280 packaging film Polymers 0.000 description 1
- 239000012785 packaging film Substances 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000009516 primary packaging Methods 0.000 description 1
- 238000009517 secondary packaging Methods 0.000 description 1
- 229920006300 shrink film Polymers 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 238000003466 welding Methods 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
- B65D75/5827—Tear-lines provided in a wall portion
- B65D75/5833—Tear-lines provided in a wall portion for tearing out a portion of the wall
- B65D75/5838—Tear-lines provided in a wall portion for tearing out a portion of the wall combined with separate fixed tearing means, e.g. tabs
-
- 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
Definitions
- the invention relates to a device for easy opening of a package formed of a film of synthetic film that can be torn, at least partially enveloping an object or a group of objects, this device comprising at least one tearing chip covering at least one incision formed through the film and adapted for tearing of the film to occur when a release pull is exerted on the scrap pellet.
- the invention also relates to a method and a machine for manufacturing a device according to the invention.
- a synthetic film packaging or overpack that must be torn by the user. It may be, for example, a film made of PVC, polyethylene or polypropylene.
- a film made of PVC polyethylene or polypropylene.
- the tear-off films there are found packaging films of the heat-shrinkable type placed around the object or group of films. objects by heat-shrinking, or films folded around the object or group of objects.
- the consumer is forced to use a sharp or sharp tool, the risk of injury or damage to the product packed up.
- the risk of deterioration is increased when the incision is made after the step of heat shrinking or narrow application of the film on the object, while the object is in very close contact with the film. If, on the contrary, the incision is made before the narrow application of the film on the object, the result is either a crippling enlargement of the incision or perforation, or a tear of the film film during the application which makes unexploitable such a solution.
- a known solution is to make an incision in the film and to cover the incision with an adhesive tape in order to preserve the protective properties of the film.
- US-A-3,442,436 has described, in 1967, a method for forming means for easy opening of a heat-shrunk film film before or after heat-shrinking, wherein a punch is brought and applied against the film to cut it or burn it along a broken line of incision forming at least one triangle, so that each triangle constitutes a tab that can be pulled to open the film. Then, an adhesive tape application device is provided to lay an adhesive tape over the incision line.
- the solution it advocates is not used because it poses many problems.
- the incision and the laying of the adhesive strip are carried out before the laying of the film around the product or before heat-shrinking, they are deformed under the effect of the stresses applied during the laying of the film around the product and generate imprecise and unsightly positioning of the incision and the adhesive strip.
- the surface of the adhesive tape must be as small as possible in order to reduce the risk of corrugation of the band under the effect of heat shrink.
- the adhesive tape must then be adapted to be able to withstand heat shrinkage and to preserve the barrier effect conferred by the film and consequently a relatively high cost. This cost is even higher if the adhesive tape because of its contact with the packaged object must meet specific standards, for example food safety.
- the adhesive tape must have very specific adhesion characteristics. It must be large enough to allow easy visualization and easy handling. It must also be aesthetic and compatible with marketing constraints. Thus, it is not possible to realize industrially and automatically, precisely, in series, and at a reasonable cost, the easy opening means described in this document.
- FR 1,393,045 and EP 0752,375 disclose methods for facilitating the opening of a packaged package which comprises making an incision in the sheet used to package the package, and applying a pressure-sensitive adhesive tape to said incision for restore the barrier properties of the leaf.
- the incision and the laying of the adhesive strip take place after heat-shrinking in order to overcome the problems due to an incision before heat-shrinking.
- Making an incision on a package after heat shrinking may damage the object or group of objects to be packaged.
- such a method is impossible to implement for objects whose conditioning after heat shrinkage must remain strictly hermetic, for example objects packaged in a specific atmosphere.
- the invention aims to overcome these disadvantages by proposing a device for easy opening of a package formed of a film of tearing synthetic film - particularly heat-shrinkable film - at least partially enveloping an object or group of objects, this device being particularly simple, effective, adaptable to any form or nature of object or group of objects and films, and can be achieved industrially, automatically, in series, without damaging the object or group of packaged items.
- the invention also aims at providing a method for manufacturing an easy opening device according to the invention.
- the invention aims more particularly to provide such a method that can be implemented continuously, in time, and while the objects or group of objects are moving.
- the invention also aims to provide such a method that can be implemented on a compact automatic machine and operating continuously, in time, similar to an automatic labeler.
- the invention also aims at providing a machine for manufacturing an easy opening device according to the invention.
- the invention is more particularly to provide such a compact machine that can operate at high speed, in particular similar to an automatic labeler.
- the invention also aims to provide such a method for providing the package with an easy opening device which does not affect the qualities of the packaging thus produced, particularly from the point of view of the hermeticity, the sealing, preservation of objects or groups of packaged objects ...
- the invention also aims to provide such a method and an easy opening device thus obtained which can be used with all kinds of objects, and in particular with soft objects such as food products (portions of cheese, coffee, .. .), or with hard objects (magnetic tapes, discs, cigarette packs ...) without damaging or polluting objects.
- cision denotes any cutting formed in at least a portion of the thickness of the film according to a line or curve segment extending between two opposite end points.
- main incision direction refers to a direction through the two end points of an incision.
- a main incision direction is defined relative to an incision.
- the invention therefore relates to a device for easy opening of a package formed of a film of synthetic film capable of being torn, at least partially enveloping an object or a group of objects, this device comprising: at least one tablet , said scrap pellet, applied on an outer face of the film, at least one sticky portion of the scrap pellet covering at least one incision formed through at least a portion of the thickness of the film,
- each tearing chip being adapted so that tearing of the film occurs when a release pull tending to move the tearing chip away from the film is exerted on the tearing wafer in a direction, referred to as a tear direction, parallel to, in particular substantially orthogonal to, a main incision direction of an incision covered by the tear pellet, said traction being exerted until the tear pellet is peeled beyond the main incision direction, characterized in that it further comprises a label having an applied adhesive portion integral with the outer face of the film by means of an adhesive composition, covering at least a portion of at least one scrap pellet from which it is also integral, and a gripping portion extending beyond the adhesive portion, this gripping portion being adapted to be disengaged from the underlying face of the film and / or the tear-off pellet so as to allow a user to exert a peel-off traction in the tearing direction on that gripping portion, and that said label is adapted and associated with the tearing pellet so that the exercise on the gripping portion of a release pull tending to
- the inventors have found that the placing of an additional label on a tear-off chip, which could be considered as useless, on the contrary surprisingly makes it possible to prolong the easy opening properties of the tear-off chip and thus of to overcome the many problems related to the use of scraping pellet alone.
- the label used to allow the peeling of the lozenge and consequently the tearing of the film could be of any standard quality.
- the label can be of a large surface allowing good visibility and easy handling at a lower cost. It can be aesthetic and even serve as a communication medium and also at a lower cost.
- the adhesive used to apply the label it can also be of any quality as soon as it is adapted so that the label can peel off the film. Therefore, the scrap pellet can be of minimal size and therefore of minimal cost. Since the tear pellet is at least partly covered by the label, its appearance or positioning on the object is no longer a problem. In addition, the scrap pellet can then be applied indifferently before or after heat shrink.
- At least one tearing chip comprises: a first portion, called the release portion, adapted to be separated from the outer face of the film under the effect of a release traction, and
- the sticky portion covering at least one incision, integral with the outer face of the film on which it is applied and extending the release portion in the tearing direction
- the adhesive portion of the label being applied to at least a portion of said detachment portion of at least one tearing pellet by means of an adhesive.
- the adhesive portion of the label is also applied to at least a portion of said sticky portion -particularly at least a portion of said sticky portion interposed between less an incision covered by this sticky portion and the portion of delamination.
- each scribing pellet is flexible.
- each scraping pellet is adapted to retain its dimensions and not wavy during heat shrink film.
- each scribing pellet comprises at least one layer of non-heat-shrinkable material, in particular paper.
- each scribing pad is gas-tight.
- each area of each scribing pad facing an incision is of food grade.
- the detachment portion is not secured to the outer face of the film.
- the gripping portion of the label is not secured to the underlying face of the film and / or the scraping pellet.
- the label covers the entire detachment portion of at least one scribing pad.
- the label covers the whole of the sticky portion of at least one scribing pad.
- the label covers the entirety of at least one scribing pad.
- the adhesive portion of the label covers the entirety of at least one tear-off chip - in particular of each tear-off chip.
- at least a portion of the gripping portion of the label covers at least a portion -particularly at least a portion of a detachment portion- of at least one scribing pad.
- the invention also relates to a method of manufacturing a device for easy opening of a package of a film of torn synthetic film at least partially enveloping an object or group of objects, wherein at least one incision is made through at least a portion of the thickness of the film, and then at least one pellet, called the tear pellet, is applied to an outer face of the film so that at least one tacky portion of the film scrap pellet covers the incision (s) and tearing of the film may occur when traction is exerted on a portion of the scrap pellet beyond the main direction of incision in the direction its detachment and in the tearing direction, characterized in that a label is applied to the outer face of the film so that a portion of the label, said adhesive portion, is secured of the film by means of an adhesive composition, and covers at least a portion of at least one tear-off pellet and that another portion of the label, said gripping portion, extends beyond said adhesive portion, at least in the tear direction, and said gripping portion being adapted to be disengaged from the underlying face
- At least one incision is made and then at least one pellet is applied to the film before packaging the object or the group of objects with the film.
- a film of heat-shrinkable film is used and at least one incision is made and then, before shrinking of the film, at least one scrap pellet chosen to preserve its dimensions and not to wavy during a shrinking.
- the invention also relates to a machine for manufacturing a device for easy opening of a package formed of a film of synthetic film capable of being torn, at least partially enveloping an object or a group of objects, said machine comprising :
- At least one conveyor capable of driving objects or groups of objects moving one after the other
- At least one packaging station for at least partially packaging an object or group of objects with the film, a cutting station for making at least one incision through at least a portion of the film thickness,
- a pelletizing station capable of applying at least one pellet to an outer face of the film
- this pelletizing station comprising automatic pelletizing means capable of applying the scrapping pellets with at least one sticky portion of the scribing disc covering at least one incision formed by the cutting station, characterized in that it further comprises a label-laying station adapted to apply a label comprising a adhesive portion and a gripping portion on the outer face of the film of each object or group of objects, said label station being adapted to apply the adhesive portion of the integral label of the film via an adhesive composition, and to place the label so that it is applied to at least one of a portion of at least one scrap pellet as set by the pelletizing station, and oriented with said pusher portion extending beyond the adhesive portion, at least in the tear direction , and such that this gripping portion is adapted to be disconnected from the underlying face of the film and / or the scrap pellet so as to allow a user to exert a delamination traction in the direction tear on this portion of grip.
- the machine according to the invention also comprises a retraction furnace, and the film is a film of heat-shrinkable film.
- the cutting station and the scrapping pellet station are located upstream of the packaging station.
- the cutting station and the pelletizing station are located downstream of the retraction furnace.
- the invention also relates to a device, a method and a machine characterized in combination by all or some of the characteristics mentioned above or below.
- FIG. 1 is a diagrammatic perspective view, broken away, of an object packaged with a package provided with an easy opening device according to an exemplary embodiment according to a first variant of the invention
- FIGS. 2 and 3 are diagrammatic perspective views of the object of FIG. 1, the package of which is being opened,
- FIG. 4 is a partial diagrammatic sectional view. along the line AA 'of Figure 1,
- FIG. 5 is a diagrammatic sectional view along line A-A 'of FIG. 1;
- FIG. 6 is a diagrammatic perspective view partially broken away of an object packaged with a package provided with an easy opening device according to a particular embodiment of the invention, in which the device comprises a scraping pellet with a sticky portion and a detachment portion,
- FIGS. 7, 8 and 9 are diagrammatic views respectively illustrating different chronological steps of a method according to the invention and a machine carrying out these steps,
- FIG. 10 is a schematic partial perspective view with broken away illustrating a second possible variant embodiment of the invention in which the gripping portion of the label covers at least part of the separation portion of a tear-off chip;
- FIG 11 is a schematic partial perspective view with broken away illustrating a third possible embodiment of the invention wherein the detachment portion of a scribing pad is not fully covered by a label.
- an object 1 such as a portion of cheese, wrapped in a film 2 of a tearable synthetic film.
- the invention is also applicable for packaging objects of any other shape, either individually or in groups.
- This object 1 can be a food product generally soft (portion of cheese, meat %) or non-food can be hard and rigid (cassette, book, disc, pack of cigarettes, ).
- the film 2 may form either a primary packaging or a secondary packaging or a package or overpack.
- the film 2 is placed and shaped entirely around the object 1, and thus has the final shape and appearance of the package.
- the film 2 is formed of a heat-shrunk film.
- the invention is applicable to any tearable synthetic film.
- heat-shrinkable films can be particularly and advantageously mentioned.
- Such a film 2 is generally applied tightly in contact with the object 1.
- the packaged object 1 comprises a device 3, 4, 7 for easy opening of the packaging formed of the film 2.
- This device 3, 4, 7 comprises at least one incision 3 formed through at least a portion of the thickness of the film 2.
- the incision can be made over the entire thickness of the film, as shown in FIGS. 4 and 5.
- the incision can also be made only through a portion of the thickness of the film.
- Such a partial incision then makes it possible to retain the barrier properties of the film while weakening the latter sufficiently enough to allow a subsequent tearing.
- the incision (s) 3 extend between two points of opposite ends.
- an incision 3 of rectilinear form there is shown an incision 3 of rectilinear form.
- the invention is also applicable for one or more incisions of any form, provided that it (they) is (are) adapted to cause tearing under the effect of traction on a scribing pad as described below.
- This device 3, 4, 7 also comprises at least one scraping pellet 4.
- a scrap pellet 4 of round shape In FIGS. 1 to 6, there is shown a scrap pellet 4 of round shape.
- the invention is also applicable to one or more scrapping pellets 4 of any shape, with a preference for non-angled shapes when the scrap pellet (s) 4 must undergo heat-shrinking in order to avoid creases around the pellet.
- the scraping pellet 4 is applied to an outer face of the film 2 by covering at least one incision 3.
- Each scraping pellet 4 is adapted so that a tearing of the film 2 occurs when a pull of delamination tends to move away.
- the film-tearing pellet is exerted on the tear-off pellet 4 in a direction, referred to as the tear direction 11, which is non-parallel-in particular substantially orthogonal-to a main incision direction of an incision covered by the tearing pellet, said traction being exerted until the pellet is peeled beyond the main incision direction 10.
- FIG. 2 represents an embodiment according to the invention in which the tear direction 11 is perpendicular to the main incision direction 10.
- the angle between the tear direction and the main direction of incision may be different from 90 °.
- the tear direction and the main incision direction form an angle preferably greater than 45 °, more preferably of the order of 90 °.
- the scraping pellet 4 is adapted and associated in such a way that it covers the incision 3 entirely. Thus, it maintains the seal between the contents of the package (object 1) and the outside.
- FIGS. 1 to 3 there is shown a single scrapping pellet 4. Nevertheless, the invention is also applicable for one or more scrapping pellets.
- Each pellet 4 is provided with an adhesive composition on at least a portion of its surface so as to be adhered to the film 2.
- the adhesive composition used may be of any kind (hotfix, contact adhesive, etc.).
- the scrap pellet 4 can also be fixed by heat sealing or in any other equivalent manner.
- the glue and / or the adhesive and / or the solder used to fix the tearing chip 4 is adapted to allow the subsequent dissociation of a first lateral portion 12 of said tearing chip 4 extending on one side of the main direction of the incision 3, when a detachment traction is exerted on this first lateral portion 12 of the tearing pellet 4, so that said first lateral portion 12 of the pellet 4 is detached from the film 2 to the incision 3.
- the glue and / or the adhesive and / or the solder are sufficiently strong to maintain a second lateral portion 13 of the scrap pellet extending from the opposite side of the incision associated with the film 2, when a delamination traction is still exerted on the first lateral part of the tear-off chip 4, according to the tear direction beyond the main direction of incision, this separation pull causing a tear of the film 2 initiated by the incision 3, the second lateral portion 13 of the pellet 4 then remaining attached to the film, as shown in FIG.
- the scraping pellet must be peelable and therefore at least partially flexible. In a preferred embodiment of the invention, the scrap pellet 4 is entirely flexible.
- scraping pellet 4 it is possible to use a pellet composed of a succession of layers of paper and / or synthetic film.
- the scraping pellet 4 may comprise all kinds of layers giving it all kinds of properties.
- the scraping pellet 4 may for example comprise a layer of silicone paper in order to allow automatic laying of the pellet 4.
- the scraping pellet 4 may also comprise a barrier film layer making it possible to obtain the desired sealing properties.
- the tear pellet 4 comprises at least one layer of gas-tight material.
- the scraping pellet 4 may also comprise a layer of non-heat-shrinkable material, for example a paper layer.
- each scraping pellet 4 by its material, its thickness, and its size, is adapted to be able to maintain its dimensions and not to wavy during heat shrinkage of the film 2.
- each scrap pellet 4 has a rigidity such that it gives the portion of film 2 to which it is secured a sufficient rigidity to reduce the phenomenon of waviness.
- the thickness of each pellet is adapted to create thermal insulation of the portion of film 2 under the pellet and prevent the portion of film 2 under the tear pellet 4 to heat shrink.
- the surface of the wafer is minimized in order to reduce the potential surface of waviness.
- the area 16 of the scrap pellet 4 facing an incision 3 is of food grade.
- the zone 16 of the tear pellet 4 opposite an incision 3 is, in a particular embodiment, chemically and biologically inert.
- the scrapping pellet 4 may comprise a tacky portion 5 and a detachment portion 6.
- the detachment portion 6 is formed of at least a portion of said first lateral portion 12, and is adapted to be able to be separated from the outer face of the film 2 under the effect of a separation pull.
- the adhesive portion 5 forms at least said second lateral portion 13, covers at least one incision 3 and is integral with the outer face of the film 2 on which it is applied.
- the detachment portion 6 extends the sticky portion 5 in the tear direction 11 and one side of the main direction of the incision 3.
- the scrapping pellet 4 comprising a tacky portion 5 and a detachment portion 6 is preferably adapted and associated so that the adhesive portion 5 covers the incision 3 entirely. Thus, it maintains the seal between the contents of the package and the outside.
- the detachment portion 6 is a portion of the scraping pellet 4 that is devoid of adhesive composition, or provided with a coating (varnish, paper, film, etc.) that neutralizes the adhesive composition, or that has an adhesive of the type repositionable. In this way, this portion of separation is not glued to the film 2 permanently and can be peeled easily by a user.
- the detachment portion 6 of the scrap pellet 4 is not secured to the outer face of the film.
- the release portion is adhesive-free, with a suppressed or neutralized adhesive or a partial adhesive.
- the glue and / or the adhesive and / or the solder used to fix the adhesive portion 5 to the film 2 is adapted to allow the subsequent dissociation of said portion of the sticky portion 5 which extends between the main direction of the incision 3 and the common edge of the sticky portion 5 and the detachment portion 6 when a release traction is exerted on the detachment portion 6, so that the tearing pellet 4 is detached from the film 2 to the incision 3, as described above.
- the adhesive and / or the adhesive and / or the solder are sufficiently strong to maintain associated with the film 2 said second lateral portion 13 of the adhesive portion 5 extending downstream of the incision 3 in the tearing direction , to allow the subsequent tearing initiated by the incision 3.
- the device 3, 4, 7 comprises, in addition to the incision 3, and the tear-off pellet 4, a label 7.
- This label 7 has an adhesive portion 8 applied to it by means of an adhesive composition of the outer face of the film 2, covering at least a portion of said first lateral portion 12 of at least one scribing pad 4 of which it is also integral.
- the label 7 furthermore has a gripping portion 9 extending beyond the adhesive portion 8.
- FIGS. 1 to 3 show a label 7 which covers the entirety of a scrapping pellet 4. Nevertheless, the invention is also applicable to a label which partially covers one or more scrapping pellets 4.
- the gripping portion 9 of the label 7 is adapted to be detached from the outer face of the film 2 so as to allow a user to exert a release traction in the tearing direction 11 on this gripping portion 9, as illustrated in FIGS. 2 and 3.
- the gripping portion 9 is devoid of adhesive composition (glue, self-adhesive, ...), or provided with a coating (varnish, paper, film, etc.) that neutralizes the adhesive composition or that is provided with a repositionable adhesive . In this way, this gripping portion 9 is not adhered to the film 2 permanently and can be easily peeled off and gripped by the user for the opening of the package.
- the adhesive portion 8 of the label 7 can be fixed on the film 2 by bonding with an adhesive composition which can be of any kind (hotfix, contact adhesive ). Also, it is possible to fix the adhesive portion 8 by welding or in any other equivalent manner.
- the glue and / or the adhesive and / or the solder used to fix the adhesive portion 8 of the label 7 to the film 2 is adapted to allow the subsequent dissociation of a part of this adhesive portion 8 when a user exerts on the gripping portion 9 a detachment pull tending to move the label 7 away from the film 2 in order to detach the adhesive portion 8 from the outside face of the film 2.
- the glue and / or the adhesive and / or the solder are sufficiently strong to hold the adhesive portion 8 of the label 7 integral with the part of the tear-off chip 4, transferring the traction exerted on the label 7 to the tear-off chip 4 and causing at least a portion of the scribing pellet 4 covered by this adhesive portion 8, and making a tear of the film 2.
- the adhesive portion 8 causes in its detachment the portion of said first lateral portion 12 of the scraping pellet 4 that it covers, then making a tear of the film 2, as shown in FIG. 3.
- the gripping portion 9 of the label 7 is not secured to the outer face of the film.
- the gripping portion 9 is adhesive-free, with a suppressed or neutralized adhesive or a partial adhesive.
- the label 7 can be mass-produced, economically, as presentation labels commonly used in packaging.
- the label 7 serves as a communication medium for example for advertising or logistical purposes or as a carrier of information for consumers, such as nutritional information or the use-by date.
- a device according to the invention has the advantage of not requiring a change in consumer habits, and therefore not to confuse.
- the tear-off chip 4 comprises a peel portion 6 and a sticky portion 5
- the adhesive portion 8 of the tag 7 is applied to at least a portion of said peel portion 6. at least one scribing pellet 4 by means of an adhesive.
- the label 7 comprises a peel portion 6 and a sticky portion 5
- the gripping portion 9 of the label 7 covers at least partly a detachment portion 6 of the underlying scribing chip 4.
- the gripping portion 9 of the label 7 covers only part of the detachment portion 6 of the underlying scribing chip 4, so that at least a portion of the adhesive portion 8 of the label 7 covers the part of the separation portion 6 extending to the adhesive portion 5.
- the gripping portion 9 of the label 7 covers the entire portion of the release 6 of the tablet of underlying scrap 4.
- the adhesive portion 8 of the label 7 covers the incision 3 and at least a portion, preferably all, of the area of the tacky portion 5 of the tear pellet 4 extending between the peel portion 6 and the incision 3.
- the label 7 does not cover all of the separation portion 6 of the underlying scribing chip 4.
- the detachment portion 6 extends projecting under and beyond the gripping portion 9 of the label 7.
- the gripping portion 9 of the label 7 covers at least a portion of the portion 6.
- This configuration may be voluntary, but may also result from a relative positioning defect (which may result from a random shrinkage of the film) of a scribing pellet and a label when laying on a surface. packaging.
- the adhesive portion 8 of the label 7 covers the portion of the release portion 6 extending to the tacky portion 5 of the tear pellet 4, so that traction on the gripping portion 9 entrains this portion of the release portion 6, then the adhesive portion 5 so as to cause tearing of the film.
- the invention thus allows positioning variations, and the easy opening device remains operational even in case of relative positioning defect.
- FIGS. 7 to 9 show exemplary embodiments of the method and the machine for manufacturing a device for easy opening of a package formed of a film 2 of synthetic film that can be torn enveloping at least partially an object or group of objects 1, according to the invention, as described above.
- This method can be integrated in a packaging process, in the final phase or intermediate.
- the objects with which is fed the machine according to the invention can be provided with a first package.
- the objects, once equipped with the easy opening device by the method according to the invention can undergo a subsequent packaging step. It can for example these are individual portions to which the easy-opening device is applied by means of the method which are then packaged in groups.
- the machine according to the invention comprises a device 18 for dispensing a film 2 of synthetic film that can be torn.
- This dispensing device 18 may be a motor-driven synthetic film roll for delivering a given amount of synthetic film at a continuous rate.
- the machine according to the invention also comprises a conveyor 19 capable of driving objects 1 in displacement one after the other.
- This conveyor 19 can be motorized, for example by an electric motor, capable of driving and guiding the objects 1 in continuous displacement in translation at constant speed.
- the conveyor 19 may be formed of one or more endless conveyor belts or any other means for moving objects 1 one after the other.
- the machine further comprises at least one packaging station 20 for at least partially packaging objects 1 with the film 2.
- the general constitution and function of such a packaging station are known.
- the machine also includes a cutting station 21 which accommodates at least one incision 3 through at least a portion of the thickness of the film 2.
- the cutting station 21 may be equipped with various means to provide an incision.
- the cutting station 21 comprises an automatically driven knife.
- the knife can be mounted adjustably so that the depth of penetration of the knife into the film can be adjusted.
- the machine further comprises, downstream of the cutting station 21 and in the direction of the distribution of the film 2, a station 22 for placing scribing pellets 4.
- the laying station 22 comprises automatic means for laying the pellets on an outer face the film 2 and is therefore constituted by a labeling device whose general constitution and operation are known in themselves. This laying station 22 has a label distribution plate.
- the laying station 22 is actuated by an electric motor.
- the scribing pellets 5 are formed of adhesive labels which are in the form of a roll of labels placed one after the other on a carrier web.
- the tilting pad placement station 22 comprises automatic means for detecting and depositing scrapping pellets so that the scrapping pellets cover the incisions 3 as provided by the cutting station 21.
- the cutting station 21 and the laying station 22 of scrapping pellets 4 can be made for example as described in EP 0752 375.
- the cutting station 21 is arranged as close as possible, in the direction of the distribution of the film 2, of the position 22 of tearing pellets. In this way, the laying of the scraping pellet 4 takes place immediately after the cutting of the incision 3, which improves the precision of the placement of the scrap pellet 5 with respect to the incision 3.
- the machine further comprises a station 23 for placing a label 7 comprising an adhesive portion 8 and a gripping portion 9 as described above.
- the station 23 for placing a label consists of a labeling device whose general constitution and operation are known per se. This station 23 poses a label distribution plate.
- the installation station 23 is actuated by an electric motor.
- the labels are in the form of a roll labels placed one after the other on a support strip.
- the labels 7 are placed on their support strip so that the adhesive portion 8 is applied integral with at least a portion of at least one tear-off pad 4 as posed by the pelletizing station, and that the label 7 is oriented with said gripping portion 9 extending beyond the adhesive portion 8.
- the machine is equipped with automatic means adapted to detect the presence of a new object 1 next to the station 23 of a label and to operate the station 23 when the presence of a new object or group of objects is detected.
- the cutting station 3 and the shredding pad placement station 22 are situated upstream of the packing station 20.
- the cutting station 3 and the shredding pad placement station 22 are situated downstream of the packaging station 20.
- the machine then comprises a first detector of the presence of an object or group of packaged objects 1 opposite the cutting station 21, and a second detector of the presence of an object or group of packaged objects 1 facing the installation station 22.
- the detectors are of optical type (photocells), or any other type.
- the machine is then also equipped with automatic means (electronic and / or computer) adapted to actuate the cutting station 21 when the first detector detects the presence of a new object or group of objects 1, and automatic means (electronic and / or computer) adapted to actuate the laying station 22 when the second detector detects the presence of a new object or group of objects 1.
- automatic means electronic and / or computer
- automatic means adapted to actuate the laying station 22 when the second detector detects the presence of a new object or group of objects 1.
- the method according to the invention comprises a step of heat-shrinking of the film 2.
- the device 18 for distributing a film of synthetic film that can be torn distributes a film 2 of film heat-shrinkable and the machine includes a retraction furnace 24 in addition to the previously described elements.
- the station 22 for placing scribing pellets uses scrapping pellets 4 chosen to retain their dimensions and not to wavy during heat-shrinking of the film 2 and the cutting station 3 and the filling station. Pellets are located upstream of the shrink oven. In this case, the incision 3 is formed in the film 2 and the tear pellet is applied to the incision before the heat-shrinking step is performed. The incision and the laying of the scraping pellet can be performed on a film wrapping an object 1 as shown in Figure 8 or on the film 2 before packaging.
- the cutting station 3 and the pelletizing station are located downstream of the shrinkage furnace. In this case, it is useless for the scrapping pellets used by the laying station 22 to be chosen to retain their dimensions and not to wavy during heat-shrinking of the film 2.
- the invention makes it possible to produce an opening device easy with large manufacturing tolerances and positioning of the scraping pellet and label.
- the easy opening device according to the invention remains operational even if the tear-off pad is not precisely placed relative to the film, for example, given the positioning variations that may result from random heat-shrinking of the film. film whose effects are difficult to predict.
- the device of the invention remains operational even if the tearing chip comes flush with the label as shown in FIG. 10, or even protrudes from the label as shown in FIG. 11.
- the invention may be subject to numerous variants with respect to the preferred embodiments described above and shown in the figures. It can also be the object of many applications for packaging any object with any tear film.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packages (AREA)
- Cartons (AREA)
- Supplying Of Containers To The Packaging Station (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0801132A FR2928140B1 (en) | 2008-02-29 | 2008-02-29 | EASY PACKING OPENING DEVICE. |
PCT/FR2009/050294 WO2009112755A1 (en) | 2008-02-29 | 2009-02-25 | Device for easily opening packaging |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2257480A1 true EP2257480A1 (en) | 2010-12-08 |
EP2257480B1 EP2257480B1 (en) | 2011-10-12 |
Family
ID=39811908
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09719001A Not-in-force EP2257480B1 (en) | 2008-02-29 | 2009-02-25 | Device for easily opening packaging |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2257480B1 (en) |
AT (1) | ATE528229T1 (en) |
FR (1) | FR2928140B1 (en) |
WO (1) | WO2009112755A1 (en) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH516440A (en) * | 1969-12-01 | 1971-12-15 | Kustner Freres Cie Sa | Sheet intended to wrap a body |
US5161350A (en) * | 1988-11-09 | 1992-11-10 | Kennak U.S.A. Inc. | Process and apparatus for manufacturing a dispenser-container |
FR2736330B1 (en) * | 1995-07-05 | 1997-08-22 | Techmay Sa | PROCESS FOR PACKAGING WITH TEARABLE FILM AND PACKAGE OBTAINED |
FR2766794A1 (en) * | 1997-07-29 | 1999-02-05 | Soltex Soc Civ | Reclosable bag for product in powder or granule form, e.g. sugar |
JP3644873B2 (en) * | 2000-05-17 | 2005-05-11 | 福岡丸本株式会社 | Covered film opening structure |
US6889483B2 (en) * | 2002-10-31 | 2005-05-10 | Cryovac, Inc. | Easy-opening feature for flexible packages and process and apparatus for forming same |
FR2871780B1 (en) * | 2004-06-17 | 2006-09-08 | Mc3 Sarl | OPENING AND REFERMING DEVICE FOR PACKAGING AND PACKAGING EQUIPPED WITH SUCH A DEVICE |
CA2567679A1 (en) * | 2005-03-04 | 2006-09-08 | Tesa Ag | At least two-layer label for opening and closing packages and the use thereof |
-
2008
- 2008-02-29 FR FR0801132A patent/FR2928140B1/en not_active Expired - Fee Related
-
2009
- 2009-02-25 EP EP09719001A patent/EP2257480B1/en not_active Not-in-force
- 2009-02-25 WO PCT/FR2009/050294 patent/WO2009112755A1/en active Application Filing
- 2009-02-25 AT AT09719001T patent/ATE528229T1/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO2009112755A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2928140A1 (en) | 2009-09-04 |
FR2928140B1 (en) | 2010-03-19 |
EP2257480B1 (en) | 2011-10-12 |
ATE528229T1 (en) | 2011-10-15 |
WO2009112755A1 (en) | 2009-09-17 |
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