EP2146910B1 - Twist-wrap packaging for food products, method and corresponding device - Google Patents
Twist-wrap packaging for food products, method and corresponding device Download PDFInfo
- Publication number
- EP2146910B1 EP2146910B1 EP08702337A EP08702337A EP2146910B1 EP 2146910 B1 EP2146910 B1 EP 2146910B1 EP 08702337 A EP08702337 A EP 08702337A EP 08702337 A EP08702337 A EP 08702337A EP 2146910 B1 EP2146910 B1 EP 2146910B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wrapper
- tearing
- product
- distal edge
- package
- 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.)
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Links
- 235000013305 food Nutrition 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 title claims description 17
- 238000004806 packaging method and process Methods 0.000 title claims description 9
- 239000000463 material Substances 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims description 19
- 238000005520 cutting process Methods 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims 1
- 244000299461 Theobroma cacao Species 0.000 abstract description 5
- 235000019219 chocolate Nutrition 0.000 abstract description 5
- 235000013601 eggs Nutrition 0.000 abstract description 2
- 235000009508 confectionery Nutrition 0.000 description 5
- -1 polyethylene Polymers 0.000 description 5
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 150000001925 cycloalkenes Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 235000019568 aromas Nutrition 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000012536 packaging technology Methods 0.000 description 1
- 235000010603 pastilles Nutrition 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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
- B65D75/04—Articles or materials wholly enclosed in single sheets or wrapper blanks
- B65D75/06—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks initially folded to form tubes
- B65D75/10—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks initially folded to form tubes with the ends of the tube closed by twisting
-
- 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
- B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
- B65B11/06—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths
- B65B11/08—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path
- B65B11/10—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path to fold the wrappers in tubular form about contents
- B65B11/14—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path to fold the wrappers in tubular form about contents the ends of the tube being subsequently twisted
-
- 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
- B65B25/00—Packaging other articles presenting special problems
- B65B25/005—Packaging other articles presenting special problems packaging of confectionery
-
- 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
- B65B61/04—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages
- B65B61/12—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by tearing along perforations or lines of weakness
-
- 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
- B65D75/04—Articles or materials wholly enclosed in single sheets or wrapper blanks
- B65D75/20—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks doubled around contents and having their opposed free margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
-
- 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
-
- 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
- B65D85/60—Containers, packaging elements or packages, specially adapted for particular articles or materials for sweets or like confectionery products
Definitions
- the invention concerns packages for food products.
- a particularly felt need is that of insuring that the product is maintained unaltered for as long a time as possible after packaging.
- flow-pack sealing wrappers that is, VFFS/HFFS (acronym for Vertical or Horizontal Form Fill and Seal) has long been known, also for small sized food products (such as chocolates, candies, pralines, etc.).
- VFFS/HFFS acronym for Vertical or Horizontal Form Fill and Seal
- the documents WO-A-99/58421 and EP-A-1 593 603 are representative of this technique.
- the package is usually opened by tearing the wrapping material along a longitudinal or transverse trajectory with respect to the package itself.
- the user tends to open the package starting by untwisting the bow or bows, rotating the central part of the wrapper itself, where the packaged product is located.
- the product could easily escape from the wrapper, making it difficult for the user to avoid its undesired falling.
- the risk of product dropping is even more evident in cases in which the product is of small size (for example, a small pastille or confectionery product) and/or when the package is opened while the attention of the consumer is occupied by other operations, for example, while the consumer is walking.
- Solutions such as the flow pack solution described in WO-A-99/58421 , in which a transverse pre-incision is present, could virtually solve the product dropping problem, but they are critical both for the generally reduced visibility of the pre-incision itself, and because the latter is susceptible to compromising package sealing since it is provided on the welding.
- the object of the present invention is providing a solution capable of overcoming such inconveniences.
- the invention allows the realisation of airtight sealed packages of the "hermetic" type: this being a characteristic very much appreciated in the case of products commercialised in humid areas, since it allows isolation of the product from the surrounding environment. Furthermore, such technology provides also, using appropriate films, isolation from oxygen and the migration of aromas.
- the numeric reference 1 indicates a package in laminar or sheet material in its entirety, used to package the food product P such as, for example, a confectionery product, a candy, a chocolate, a praline or like product.
- the solution described herein can be used also for products P of very small sizes, such as, for example, confectionery products of a few millimetres in length.
- the product P can be either single or multiple as is illustrated, for example, in EP-A-0 814 030 .
- the package 1 is essentially made of a laminar or film wrapping material (on which more will be said in the following) initially wrapped according to a general U conformation around the product P as is schematically illustrated in figure 2 .
- a closing line 2 extending in a general arch-like trajectory so as to surround the product P, is provided around the product P.
- the above-said sealing line 2 (also susceptible to having a certain length) has its extremities located in correspondence with the loop part of the sheet material folded in a U around the product P.
- the extremity portions in the packaging intermediate thus realised (refer again to figure 2 ) are then subjected to a general twisting movement in correspondence to one or both of the extremities (observe the arrows F in figure 2 ) so to confer the general "candy-like" appearance represented in figure 1 to the package 1, with a central part enclosing the product P (airtight sealed, thanks to the presence of the sealing line 2) and two extremity parts 3 twisted into a general bow-like conformation.
- the package 1 may have only one bow at the extremity 3.
- each distal edge 3a of the two bows 3 have a saw-like or zigzag trajectory creating a plurality of incisions in each distal edge 3a with V-shaped notches, instead of a general strait-line trajectory, is an important characteristic of the solution described herein.
- Each of such parts having V-shaped notches can act as a triggering point for a wrapper-tearing phenomenon directed at freeing the product P from the package 1.
- the sequence in figures 3 and 4 shows how, acting on one of the distal edges 3a, and in particular starting from one of the V-shaped notched points of the zigzag configuration, the user wanting to open the package 1 can trigger a gradual wrapper-tearing phenomenon.
- the tearing action proceeds along a trajectory 40 (indicated with a dotted line in figure 3 and instead, represented as a solid line in figure 4 ) so to determine the gradual lengthwise tearing of the package 1.
- oriented film meaning a film material (typically a plastic material in, for example, a cyclo olefin copolymer (COC) and polyethylene) that, during production (usually by extrusion) is subjected to stretching in the longitudinally advancing direction of the extruder.
- a film material typically a plastic material in, for example, a cyclo olefin copolymer (COC) and polyethylene
- COC cyclo olefin copolymer
- polyethylene polyethylene
- the oriented-film material is easier to tear in the direction of the orientation.
- the film is less resistant to cutting attempts such to induce tearing in the oriented direction that the film was subjected to during its manufacturing phase.
- the tearing of the bow proceeds along a substantially longitudinal line with respect to the package, without inducing a marked twisting movement of the bow. Furthermore, while the bow 3 through which the tearing line 40 propagates can somehow be subjected to a slight untwisting, the opposite bow 3, not involved in the propagation of the tearing line, remains essentially stably twisted.
- distal edge or distal edges 3a with a zigzag or similar pattern suggests to and allows the consumer, even in the presence of the twisted bow or bows, to open the package 1 not by untwisting the bows (as the consumer would tend to do with a normal candy-like package, but through a longitudinally induced tearing. In turn, such tearing occurs gradually thanks to the bow through which the tearing is propagated.
- Figure 5 highlights the possibility of realising the distal edge 3a, always having a general zigzag pattern, but with rounded incisions along the external perimeter and with V-shaped notches along the internal perimeter, so to form respective triggering points 4 for tearing of the package wrapper.
- Figure 6 schematically illustrates the possible realisation criteria of a package of the type represented in the previous figures.
- the numeric reference 12 indicates a filling and sealing station in its entirety (itself also of know type) in which the products P are inserted in the tubular blank 10 inserting them inside the part of the loop of the blank through the upper edges not yet connected together. Co-ordinately with the filling operation, operating according to a method of the type described in document EP-B-1 477 423 previously cited, the unit 12 makes the sealing line 2, which provides the hermetic seal around each product P inserted in the blank of sheet material.
- the hermetic package thusly obtained is advanced (usually after a 90° rotation with respect to its advancing axis, indicated with X10, although such choice is obviously not compulsory) toward the cutting unit 14 (for example, with intermittent or rotating knives - itself also of known type) which provides the cutting of the individual packages forming the distal edges 3a with saw-like pattern (or analogous) visible in figures 1 to 4 .
- a bow-realisation station indicated with reference 16 in which, operating in a way itself known (for example, according to the method described in the document EP-B-1 299 285 ), the extremities of each package are subjected to twisting so to provide the extremity bows 3.
- the products P housed in the now completed packages 1 are then collected (usually by falling) in a container C.
- the solution illustrated herein is designed so that the seal characteristic of the package around the product P, provided by the sealing line 2, tightly surround the product P, so that the opening pre-incisions provided on the distal edges 3a, as already cited, do not compromise the sealing.
- the seal characteristic of the package around the product P provided by the sealing line 2
- the opening pre-incisions provided on the distal edges 3a do not compromise the sealing.
- terminal package sealing lines realised according to widely known criteria in flow-pack type packaging technology
Abstract
Description
- The invention concerns packages for food products.
- When packaging food products, different needs must be kept under consideration.
- A particularly felt need is that of insuring that the product is maintained unaltered for as long a time as possible after packaging. In order to pursue such object, the use of flow-pack sealing wrappers, that is, VFFS/HFFS (acronym for Vertical or Horizontal Form Fill and Seal) has long been known, also for small sized food products (such as chocolates, candies, pralines, etc.). The documents
WO-A-99/58421 EP-A-1 593 603 are representative of this technique. The latter document also illustrates the possibility of providing extremity (figure 1 ) or longitudinal (figure 2 ) package welding lines with zigzag edges, allowing the package to be opened by tearing the sheet material of which the package is made along a longitudinal or transversal trajectory with respect to the package itself. - There is also a strong branch of research aimed at providing traditional candy-like packages (that is, packages with one or both extremities twisted like a bow) with characteristics of improved isolation from the external environment. Representative of such branch are, for example, the documents
GB-A-993 981 US-A-5 935 686 ,EP-A-0 816 229 ,EP-B-1 299 285 orWO-A-02/22445 EP-B-1 477 423 , uniting hermetic sealing characteristics with the appearance of a traditional candy-like wrapper, essentially falls in the same branch. A package according to the preamble ofclaim 1 is disclosed inWO-A-03/106267 - As was said, in the case of flow pack packaging, the package is usually opened by tearing the wrapping material along a longitudinal or transverse trajectory with respect to the package itself. In the case of candy-like packages, even when modified in various ways to insure hermetic sealing properties., the user tends to open the package starting by untwisting the bow or bows, rotating the central part of the wrapper itself, where the packaged product is located.
- In both cases, the product could easily escape from the wrapper, making it difficult for the user to avoid its undesired falling. The risk of product dropping is even more evident in cases in which the product is of small size (for example, a small pastille or confectionery product) and/or when the package is opened while the attention of the consumer is occupied by other operations, for example, while the consumer is walking.
- Solutions such as the flow pack solution described in
WO-A-99/58421 - The object of the present invention is providing a solution capable of overcoming such inconveniences.
- According to the present invention, such object is achieved thanks to a package having the characteristics set forth in
claim 1. Advantageous developments of the invention are object of the subordinate claims. The invention concerns also a corresponding package realisation method as well as a corresponding device. The claims are integral parts of the disclosure of the invention provided herein. - In the currently preferred embodiment, in addition to overcoming the inconveniences outlined above concerning the package opening operation, the invention allows the realisation of airtight sealed packages of the "hermetic" type: this being a characteristic very much appreciated in the case of products commercialised in humid areas, since it allows isolation of the product from the surrounding environment. Furthermore, such technology provides also, using appropriate films, isolation from oxygen and the migration of aromas.
- The invention will now be described as a non-limiting example.
- The description refers to the attached drawings, in which:
-
figure 1 is a general prospective view of a package of the type described herein, -
figure 2 schematically illustrates the criteria of realisation of the package infigure 1 , - the
figures 3 and 4 illustrate a possible sequence of the opening of the package infigures 1 and 2 , -
figure 5 illustrates a possible variant realisation of the solution in the previous figures and -
figure 6 schematically illustrates a method and device useable for realising the packages infigures 1 to 5 . - In the figures in the attached drawings, the
numeric reference 1 indicates a package in laminar or sheet material in its entirety, used to package the food product P such as, for example, a confectionery product, a candy, a chocolate, a praline or like product. Reference to these dimensional data should not be interpreted as limiting to the scope of the invention; the solution described herein can be used also for products P of very small sizes, such as, for example, confectionery products of a few millimetres in length. Also, the product P can be either single or multiple as is illustrated, for example, inEP-A-0 814 030 . - The
package 1 is essentially made of a laminar or film wrapping material (on which more will be said in the following) initially wrapped according to a general U conformation around the product P as is schematically illustrated infigure 2 . - Successively, a
closing line 2, extending in a general arch-like trajectory so as to surround the product P, is provided around the product P. The above-said sealing line 2 (also susceptible to having a certain length) has its extremities located in correspondence with the loop part of the sheet material folded in a U around the product P. - The extremity portions in the packaging intermediate thus realised (refer again to
figure 2 ) are then subjected to a general twisting movement in correspondence to one or both of the extremities (observe the arrows F infigure 2 ) so to confer the general "candy-like" appearance represented infigure 1 to thepackage 1, with a central part enclosing the product P (airtight sealed, thanks to the presence of the sealing line 2) and twoextremity parts 3 twisted into a general bow-like conformation. - In a currently, less preferred embodiment, not represented in the figures, the
package 1 may have only one bow at theextremity 3. - The general realisation criteria of the
package 1 described so far substantially correspond to the solution object of the documentEP-B-1 477 423 , already cited in the introductory part of the present description: therefore, all of the elements illustrated, described or in any way deducible from such prior art document will not be further described herein. - The fact that the
distal edges 3a of the twobows 3 have a saw-like or zigzag trajectory creating a plurality of incisions in eachdistal edge 3a with V-shaped notches, instead of a general strait-line trajectory, is an important characteristic of the solution described herein. Each of such parts having V-shaped notches can act as a triggering point for a wrapper-tearing phenomenon directed at freeing the product P from thepackage 1. - The sequence in
figures 3 and 4 shows how, acting on one of thedistal edges 3a, and in particular starting from one of the V-shaped notched points of the zigzag configuration, the user wanting to open thepackage 1 can trigger a gradual wrapper-tearing phenomenon. Starting at the previously cited trigger point, generically indicated with 4, the tearing action proceeds along a trajectory 40 (indicated with a dotted line infigure 3 and instead, represented as a solid line infigure 4 ) so to determine the gradual lengthwise tearing of thepackage 1. - Experiments performed by the Applicant show that it is advantageous to realise the
package 1 using "oriented film" sheet wrapping material with the oriented direction aligned longitudinally with respect to thepackage 1, that is, in the direction of the ideal axis around which the wrapping material of the package is twisted to from the extremity bow orbows 3, although this solution must not be taken categorically (in particular in the presence of extremely thin wrapping materials). - The term "oriented film" meaning a film material (typically a plastic material in, for example, a cyclo olefin copolymer (COC) and polyethylene) that, during production (usually by extrusion) is subjected to stretching in the longitudinally advancing direction of the extruder. Such stretching makes the structure of the film material more stable against possible successive stretching in the oriented direction: in other words, the film, after being stretched, has a higher resistance to stretching than before being subjected to stretching.
- In a complementary way, the oriented-film material is easier to tear in the direction of the orientation. In practice, the film is less resistant to cutting attempts such to induce tearing in the oriented direction that the film was subjected to during its manufacturing phase.
- In any case, both if it derives from an intrinsic characteristic of the film used for the wrapper or if the result is favoured by the use of an oriented-film material, it is possible to discover the fact that in the solution described herein the action of tearing along the
line 40 triggered starting from one of the notched points of the zigzag profile (for example from the trigger point indicated with 4 infigure 3 ) the action propagates longitudinally with respect to the package. All of this (at least most of the time) without involving, if not to a relatively reduced extent, the untwisting of the bow-like part 3 involved in the tearing action. - In the case of the solution described herein, the tearing of the bow proceeds along a substantially longitudinal line with respect to the package, without inducing a marked twisting movement of the bow. Furthermore, while the
bow 3 through which thetearing line 40 propagates can somehow be subjected to a slight untwisting, theopposite bow 3, not involved in the propagation of the tearing line, remains essentially stably twisted. - The net result thus obtainable is represented in
figure 4 . Once the tearing action made alongline 40 traverses the greater part, and then practically the entire central part of the package (the condition actually represented infigure 4 ), it is possible to observe that the product P is still found inside of the central part of thepackage 1, housed in a sufficiently stable and safe way in the residual part of the package having a general shell-like conformation, retained in such shell by the two longitudinal margins of the tearing line indicated with 40, which, as is schematically represented infigure 4 , advances on both sides of the product P. - The presence of distal edge or
distal edges 3a with a zigzag or similar pattern suggests to and allows the consumer, even in the presence of the twisted bow or bows, to open thepackage 1 not by untwisting the bows (as the consumer would tend to do with a normal candy-like package, but through a longitudinally induced tearing. In turn, such tearing occurs gradually thanks to the bow through which the tearing is propagated. - In this way, it is possible to open the package (which, recall that in the case described herein is an airtight sealed hermetic package) without running the undesired risks of product dispersion mentioned in the introductory part of the present description and without running into the possible problems that may be encountered if a technique according to the teachings of the document
WO-A-99/58421 - In this regard, it is also convenient to observe the following.
- Experiments performed by the Applicant demonstrate that - other characteristics being equal (and in particular, with the same material and thickness of the wrapping sheet) - a package substantially identical to the one illustrated here as an example, but with
distal edges 3a having a strait line pattern, lacking tear-triggeringpoints 4, is very often impossible to tear in a longitudinal direction, without the application of a very significant effort. - Furthermore, the presence of a tear-triggering point, such as that provided by the zigzag pattern on the
edges 3a, suggests to the consumer to tear thepackage 1 in the above described way. On the contrary, in the presence ofedges 3a with strait-line patterns, the consumer is unavoidably led to try to open the package by untwisting the bows 3: an operation which, in the case of a hermetic package (seefigure 3 ) in any case, does not give access to the product P. - The same experiments demonstrate that the use of an oriented type wrapping material helps both in triggering of tearing and in its propagation across the region of the twisted bow.
- Also, it was possible to determine that the best result can be obtained when the length of the portion of wrapping subjected to twisting for formation of the or each bow, measured longitudinally with respect to the package (see
figure 2 ), has a length A included between 5 millimetres and 5 millimetres plus X (the length of the product), protruding with respect to the length X of the product P. -
Figure 5 highlights the possibility of realising thedistal edge 3a, always having a general zigzag pattern, but with rounded incisions along the external perimeter and with V-shaped notches along the internal perimeter, so to form respective triggeringpoints 4 for tearing of the package wrapper. - Therefore, it follows that for the
distal edge 3a it is possible to adopt any configuration such to create wrapper tear-triggeringpoints 4. -
Figure 6 schematically illustrates the possible realisation criteria of a package of the type represented in the previous figures. - In particular, on the left side of
figure 6 , one sees the blank, indicated with 10, of wrapping material made of a sheet material folded in a general U conformation opened toward the top (ideally considered as moving from left to right). - The techniques allowing the realisation of a U-shaped blank of this type, starting from a roll of sheet material, are well known in flow-pack packaging methodology and therefore do not need describing herein.
- The
numeric reference 12 indicates a filling and sealing station in its entirety (itself also of know type) in which the products P are inserted in the tubular blank 10 inserting them inside the part of the loop of the blank through the upper edges not yet connected together. Co-ordinately with the filling operation, operating according to a method of the type described in documentEP-B-1 477 423 previously cited, theunit 12 makes thesealing line 2, which provides the hermetic seal around each product P inserted in the blank of sheet material. - Successively, the hermetic package thusly obtained is advanced (usually after a 90° rotation with respect to its advancing axis, indicated with X10, although such choice is obviously not compulsory) toward the cutting unit 14 (for example, with intermittent or rotating knives - itself also of known type) which provides the cutting of the individual packages forming the
distal edges 3a with saw-like pattern (or analogous) visible infigures 1 to 4 . - Next, a bow-realisation station indicated with
reference 16 in which, operating in a way itself known (for example, according to the method described in the documentEP-B-1 299 285 ), the extremities of each package are subjected to twisting so to provide the extremity bows 3. - The products P housed in the now completed
packages 1 are then collected (usually by falling) in a container C. - The solution described herein is adaptable to a wide range of variants.
- For example, according to the currently preferred form of embodiment, the solution illustrated herein is designed so that the seal characteristic of the package around the product P, provided by the
sealing line 2, tightly surround the product P, so that the opening pre-incisions provided on thedistal edges 3a, as already cited, do not compromise the sealing. Naturally, it would also be possible to delegate this function to terminal package sealing lines (realised according to widely known criteria in flow-pack type packaging technology) defining thedistal edges 3a with a zigzag pattern. - It follows that, keeping the principle of the invention constant, the details of realisation and the embodiments could be widely varied with respect to what was illustrated herein as a non-limiting example, without departing from the scope of the invention, as defined in the attached claims. In particular, concerning the choice of material of which the wrapping film is constituted, different choices are possible, at least in principle, such as that of using a film of polypropylene (PP), polyethylene (PE), polyethylene phthalate (PET), etc.. The use of a multi-layer cyclo olefin co-polymer (COC) and polyethylene based film was demonstrated to be a particularly advantageous choice. A film material of this type was found ideal for the realisation of the solution described herein in the field of packaging of a wide range of products varying in size and genre, such as small confectionary products, chocolate eggs, wafer-like products.
Claims (21)
- A package for food products (P) including a sheet of wrapping material air-tight sealed (2) around at least one product (P) and provided with at least one bow-like twisted extremity portion (3) having a distal edge (3a), the package having at least one triggering point (4) for the tearing of said wrapper, characterised in that said at least one triggering point (4) for the tearing of said wrapper is provided at said distal edge (3a) of said bow-like twisted extremity portion (3).
- A package according to claim 1, in which said sheet material is constituted of an oriented film having the oriented direction longitudinal with respect to the package.
- A package according to claim 1 or claim 2, in which said distal edge (3a) has a general zigzag pattern with V-shaped incisions susceptible to providing triggering points (4) for the tearing of said wrapper.
- A package according to any of the previous claims, in which said distal edge (3a) has a general zigzag pattern, with rounded incisions along the external perimeter and V-shaped incisions along the' internal perimeter so to provide respective triggering points (4) for the tearing of said wrapper.
- A package according to any of the previous claims, in which said distal edge (3a) has a configuration such to create a plurality of triggering points (4) for the tearing of said wrapper.
- A package according to any of the previous claims, in which said wrapper has a sealing line (2) extending in a general arch-like trajectory around said at least one product (P).
- A package according to claim 6, in which said wrapper is wrapped around said at least one product (P) according to a general U-conformation with said product (P) housed in the loop part of said U-configuration, and in which said sealing line (2) has its extremities in correspondence with said loop part.
- A package according to claim 1, in which said at least one extremity portion (3), has a minimum length (A) equal to 5 millimetres and a maximum length (A) equal to 5 millimetres plus the dimension (X) of the wrapped product.
- A method for packaging food products (P) in a wrapper of air-tight sealed sheet material (2) around at least one product (P) and provided with at least one bow-like twisted extremity portion (3) having a distal edge (3a), the method including the operation of providing at least one triggering point (4) for the tearing of said wrapper, characterised in that said at least one triggering point (4) for the tearing of said wrapper is provided at said distal edge (3a) of said bow-like twisted extremity portion (3).
- A method according to claim 9, including the operation of using, as said sheet material, an oriented film with the oriented direction aligned longitudinally with respect to the package.
- A method according to claim 9 or claim 10, including the operation of providing said distal edge (3a) with a general zigzag pattern having V-shaped incisions susceptible to forming respective triggering points (4) for the tearing of said wrapper.
- A method according to any of the claims 9 to 11, including the operation of providing said distal edge (3a) with said distal edge (3a) having a general zigzag pattern with rounded incisions along the external perimeter and V-shaped incisions along the internal perimeter so to form respective triggering points (4) for the tearing of said wrapper.
- A method according to any of the claims 9 to 12, including the operation of providing said distal edge (3a) with a configuration such to create a plurality of triggering points (4) for the tearing of said wrapper.
- A method according to any of the previous claims 9 to 13, including the operation of realising said sealing line (2) along a general arch-like trajectory around said at least one product (P).
- A method according to claim 14, including the operation of wrapping said wrapper around said at least one product (P) according to a general U-conformation with said product (P) housed in the loop part of said U-configuration and the operation of providing said sealing line (2) with its extremities in correspondence with said loop part.
- Device for the packaging of food products (P) in a wrapper of sheet material airtight sealed (2) around at least one product (P) and provided with at least one bow-like twisted extremity portion (3) having a distal edge (3a), the device including a unit (14) to provide said distal edge (3a) with at least one triggering point (4) for the tearing of said wrapper.
- A device according to claim 16, including a cutting unit (14) to provide said distal edge (3a) with a general zigzag pattern having V-shaped incisions susceptible to forming respective triggering points (4) for the tearing of said wrapper.
- A device according to claim 16 or claim 17, including a cutting unit (14) to provide said distal edge (3a) with a general zigzag pattern having rounded incisions along the external perimeter and V-shaped incisions along the internal perimeter so to form respective triggering points (4) for the tearing of said wrapper.
- A device according to any of the claims 16 to 18, including a cutting unit (14) to provide said distal edge (3a) with a configuration such to create a plurality of triggering points (4) for the tearing of said wrapper.
- A device according to any of the claims 16 to 19, including a sealing unit (12) to realise said sealing line (2) according to a general arch-like trajectory around said at least one product (P).
- A device according to claim 20, including a shaping tool to wrap said wrapper around said at least one product (P) according to a general U-conformation with said product (P) housed in the loop part of said U-configuration, with said sealing unit (12) providing said sealing line (2), having its extremities in correspondence with said loop part.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL08702337T PL2146910T3 (en) | 2007-05-23 | 2008-01-25 | Twist-wrap packaging for food products, method and corresponding device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000362A ITTO20070362A1 (en) | 2007-05-23 | 2007-05-23 | "PACKAGE FOR FOOD, PROCEDURE AND RELATIVE EQUIPMENT" |
PCT/IB2008/000202 WO2008142497A1 (en) | 2007-05-23 | 2008-01-25 | 'packaging for food products, method and corresponding device' |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2146910A1 EP2146910A1 (en) | 2010-01-27 |
EP2146910B1 true EP2146910B1 (en) | 2011-03-02 |
Family
ID=39371359
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08702337A Active EP2146910B1 (en) | 2007-05-23 | 2008-01-25 | Twist-wrap packaging for food products, method and corresponding device |
Country Status (13)
Country | Link |
---|---|
US (1) | US20100086652A1 (en) |
EP (1) | EP2146910B1 (en) |
CN (1) | CN101678937B (en) |
AT (1) | ATE500162T1 (en) |
AU (1) | AU2008252565A1 (en) |
BR (1) | BRPI0810268B1 (en) |
DE (1) | DE602008005296D1 (en) |
ES (1) | ES2362156T3 (en) |
IT (1) | ITTO20070362A1 (en) |
MX (1) | MX2009011710A (en) |
PL (1) | PL2146910T3 (en) |
WO (1) | WO2008142497A1 (en) |
ZA (1) | ZA200907255B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITTO20050471A1 (en) * | 2005-07-08 | 2007-01-09 | Soremartec Sa | PACKAGE FOR FOOD PRODUCTS |
IT201700022526A1 (en) * | 2017-02-28 | 2018-08-28 | Azionaria Costruzioni Acma Spa | Packaging method for hygroscopic food products |
CN109606792B (en) * | 2018-12-29 | 2023-06-20 | 成都三可实业有限公司 | Granular candy packagine machine |
IT201900006829A1 (en) * | 2019-05-14 | 2020-11-14 | Soremartec Sa | PACKAGING FOR CONFECTIONERY PRODUCTS |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US808520A (en) * | 1904-11-07 | 1905-12-26 | Vernon Driskell | Holder for medicines or other substances. |
US2027791A (en) * | 1933-04-05 | 1936-01-14 | Schrager Joseph | Confection cover |
US2079328A (en) * | 1933-06-27 | 1937-05-04 | Beech Nut Packing Co | Package and method of forming the same |
US4834245A (en) * | 1988-08-05 | 1989-05-30 | Kabushiki Kaisha Hosokawa Yoko | Pouch having tearing zone for taking out content packed therein |
BE1009877A3 (en) * | 1995-12-29 | 1997-10-07 | Transpac | Closed envelope packing by papillotes. |
EP0837010A1 (en) * | 1996-10-08 | 1998-04-22 | Transpac, N.V. | Wrapper for confectionery and method for its manufacture |
EP1188672A1 (en) * | 2000-09-18 | 2002-03-20 | Mars B.V. | Method and device for packaging a food product, such as a candy, as well as a packaged candy |
ITBO20020390A1 (en) * | 2002-06-18 | 2003-12-18 | Azionaria Costruzioni Acma Spa | METHOD FOR MAKING PRODUCT PACKAGES, SHEET FOR PACKAGES OBTAINED FROM SUCH METHOD AND PACKAGING TAPE |
US20030233813A1 (en) * | 2002-06-25 | 2003-12-25 | Leslie Wayne Grant | Process of making a wrapped tampon |
ATE328809T1 (en) * | 2003-02-12 | 2006-06-15 | Mars Inc | SYSTEM WITH MULTIPLE PACKAGINGS FOR ONE OR MORE CONFECTIONAL BARS AND A HOLDER FOR THESE PACKAGINGS |
ATE320983T1 (en) * | 2003-05-13 | 2006-04-15 | Soremartec Sa | HERMETIC SEALING FOR FOODSTUFFS, CORRESPONDING METHOD AND APPARATUS |
-
2007
- 2007-05-23 IT IT000362A patent/ITTO20070362A1/en unknown
-
2008
- 2008-01-25 AU AU2008252565A patent/AU2008252565A1/en not_active Abandoned
- 2008-01-25 BR BRPI0810268-6A patent/BRPI0810268B1/en active IP Right Grant
- 2008-01-25 US US12/598,659 patent/US20100086652A1/en not_active Abandoned
- 2008-01-25 EP EP08702337A patent/EP2146910B1/en active Active
- 2008-01-25 DE DE602008005296T patent/DE602008005296D1/en active Active
- 2008-01-25 ES ES08702337T patent/ES2362156T3/en active Active
- 2008-01-25 MX MX2009011710A patent/MX2009011710A/en unknown
- 2008-01-25 AT AT08702337T patent/ATE500162T1/en not_active IP Right Cessation
- 2008-01-25 WO PCT/IB2008/000202 patent/WO2008142497A1/en active Application Filing
- 2008-01-25 CN CN200880017097XA patent/CN101678937B/en active Active
- 2008-01-25 PL PL08702337T patent/PL2146910T3/en unknown
-
2009
- 2009-10-16 ZA ZA2009/07255A patent/ZA200907255B/en unknown
Also Published As
Publication number | Publication date |
---|---|
CN101678937B (en) | 2012-09-05 |
BRPI0810268B1 (en) | 2018-04-10 |
DE602008005296D1 (en) | 2011-04-14 |
ZA200907255B (en) | 2010-12-29 |
ITTO20070362A1 (en) | 2008-11-24 |
ES2362156T3 (en) | 2011-06-29 |
MX2009011710A (en) | 2009-11-10 |
ATE500162T1 (en) | 2011-03-15 |
AU2008252565A1 (en) | 2008-11-27 |
BRPI0810268A8 (en) | 2017-10-10 |
EP2146910A1 (en) | 2010-01-27 |
CN101678937A (en) | 2010-03-24 |
PL2146910T3 (en) | 2011-07-29 |
BRPI0810268A2 (en) | 2014-12-30 |
WO2008142497A1 (en) | 2008-11-27 |
US20100086652A1 (en) | 2010-04-08 |
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