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
  • B65D55/00—Accessories for container closures not otherwise provided for
  • B65D55/02—Locking devices; Means for discouraging or indicating unauthorised opening or removal of closure
  • B65D55/06—Deformable or tearable wires, strings, or strips; Use of seals, e.g. destructible locking pins
  • B65D55/08—Annular elements encircling container necks
  • B65D55/0818—Destructible or permanently removable bands, e.g. adhesive
  • B65D55/0854—Shrink-film bands
• • 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
  • B65D2211/00—Anti-theft means
• • 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
  • B65D2555/00—Accessories for container closures not otherwise provided for
  • B65D2555/02—Locking devices; Means for discouraging or indicating unauthorised opening or removal of closure
  • B65D2555/025—Applied tearing or cutting means, e.g. tear-strings

Definitions

• the present invention relates to the field of packaging objects, and more particularly packaging produced by means of an envelope constituted by a sleeve made of heat-shrinkable plastic material intended to be retracted on the object or objects concerned.
• an envelope constituted by a sleeve made of heat-shrinkable plastic material intended to be retracted on the object or objects concerned.
• a tear strip fitted to the heat-shrinkable sleeve on the internal face of the latter, said strip being most of the time arranged along a generatrix of the sleeve, and much more rarely in a circumferential direction of said sleeve.
• one or two perforation lines may be provided in the vicinity of the tear strip, in order to facilitate tearing of the wall of the sleeve when traction is exerted by pulling on one end of the tear strip.
• the heat-shrinkable sleeves used can be used to support inscriptions, possibly also to include a user manual (a pocket delimited by two parallel sealing lines arranged along generators of the sleeve is then arranged), or to ensure the inviolability of the object, in particular in association with an object opening system (cover or plug), or even to provide anti-theft protection of the object by supporting, for example, a filament forming an electromagnetic antenna.
• the invention relates more particularly to a security envelope of the type consisting of a sleeve made of heat-shrinkable plastic material capable of closely surrounding a part of the object concerned, said sleeve being further equipped, on its internal face, with a strip of tear-off and a metallized identification strip which extends parallel to said tear-off strip.
• an adhesive bond is generally provided, as was already the case for overwrap films fitted with a tear strip passing around the packaged object (see for example documents US-A-3 362 617, EP-A-0 223 498, and GB-A-2 123 376). More recently, attempts have been made to combine several functions with the same sleeve, for example by providing a tear strip carrying a metal filament constituting an antenna for an electronic monitoring system operating on a magnetic detection principle, as illustrated in the document. EP-A-0 698 562 to the applicant.
• the metallic filament in question cannot be compared to a metallized identification strip, - moreover, in the variant of the figures 7a and 7b, the filament sandwiched between the tear strip and the internal wall of the sleeve is surrounded by adhesive, in particular between the filament and the wall of the sleeve, which is not a problem for a metallic filament constituting a antenna operating on a magnetic resonance principle, but what would be if we wanted to be able to perform an optical reading by transparency through the wall of the sleeve.
• tear strips including a hologram, the hologram strip being bonded to the internal face of the sleeve, and perforations being provided in the tear strip and in the wall of the sleeve to facilitate opening by pulling on said tear strip (see for example document GB-A-2 273 492).
• a self-adhesive hologram tape has the disadvantage of being expensive to manufacture.
• Another technique consists in providing a tamper-evident security strip comprising a substrate including a hologram, each surface of the substrate having an adhesive layer, and the security element being fixed to the wall of the sleeve by one of its layers. adhesive (see for example GB-A-2 298 391).
• Such a technique with double adhesive bond that is to say both on the face of the sleeve and on the wall of the object, naturally provides the advantage of reliable detection in the event of abnormal manipulation exerted on the sleeve or object.
• this technique remains expensive and difficult to implement.
• the tear strip is arranged in the vicinity of, and parallel to, the hologram strip, so that this tear strip serves only to ensure the function traditional aid for tearing the envelope, without intervening in any way in the security function which is ensured by the hologram strip.
• the sleeve of which is equipped, on its internal face, with a holographic element and with a tear strip passing behind this holographic element, in order to tear said element during 1 opening of the envelope by pulling on the strip (see for example document FR-A-2 754 375 by the applicant).
• the inner wall of the sleeve carries a holographic element produced in the form of an enlarged patch which is bonded directly against the inner wall of the sleeve, this patch comprising a holographic metallization layer carried by a plastic support layer. transparent adhering to the internal face of the sleeve.
• a holographic element is intended to constitute a certification of origin of the product.
• the invention aims to design a security envelope with tear strip and metallized strip iden ⁇ tification that is able to combine the advantages of the above techniques, without having the disadvantages, being especially economic to produce, and especially by providing a perfect optical value for legibility through the wall of the heat-shrinkable sleeve.
• a security envelope for objects in particular for containers with a closure device, of the type constituted by a sleeve made of heat-shrinkable plastic material capable of closely surrounding a part of the object.
• said sleeve being further equipped, on its internal face, with a tear strip and a metallized identification strip which extends parallel to said tear strip, said envelope being remarkable in that the metallized strip is non-adhesive, and it is sandwiched between the internal face of the sleeve and an adhesive face of the tear strip, the tear strip projecting on both sides of the metallized strip so as to adhere to the internal face of the sleeve by zones situated on either side of said metallized strip.
• the metallized strip is perfectly pressed against the internal face of the heat-shrinkable sleeve without the slightest presence of varnish or glue altering the optical value of the legibility by transparency through the wall of said sleeve.
• the metallized identification strip which can be a holographic strip, is perfectly held in position by the tear strip which completely envelops it, in particular on either side of the edges thereof, without the we had to provide an adhesive face for the metallic strip. So we can use existing holographic bands, with the desired pattern of any complex two or three dimensional type, without having to deposit adhesive material on one of their faces.
• the metallized strip has its metallized face turned towards the adhesive face of the tear strip.
• the brittleness at destruction for the metallized part is considerably increased, insofar as the slightest manipulation of the tear strip has the immediate effect of causing delamination, leading to at least partial destruction of the part metallic, especially holographic. This therefore reinforces the self-destruction effect in the event of fraudulent manipulation of the wrapped object.
• the tear strip and the metallized strip extend along a generatrix of the sleeve, over the entire height of the latter.
• the tear strip and the metallized strip extend circumferentially, over the entire inner periphery of the sleeve.
• the tear strip is made of heat-shrinkable plastic, so as to have the same transverse shrinkage as the wall of the sleeve.
• the metallized strip can likewise be produced from a strip of heat-shrinkable plastic, so as to also have the same transverse shrinkage as the wall of the sleeve.
• a detection antenna or a chip may be sandwiched between the metallized strip and the adhesive face of the tear strip.
• FIG. 1 is a perspective view illustrating a security envelope according to the invention, the tear strip which traps the metallized identification strip extends along a generatrix of the heat-shrinkable sleeve, over the entire height of it;
• FIG. 2 is a plan view of the developed inner surface of the sleeve constituting the aforementioned envelope, with an imprint (represented by the letter S) on one side of the tear strip glued against the inner wall of the muff ;
• FIG. 3 is a section on III -III of Figure 2, on a very enlarged scale, to better distinguish the multilayer structure associated with the wall of the heat-shrinkable sleeve, with the non-adhesive metallized strip sandwiched between the face adhesive for the tear strip and the inner face of the sleeve;
• FIG. 4 illustrates different types of objects, here containers with closure device, equipped with a security envelope of the aforementioned type
• FIG. 5 is a detail section to better distinguish the arrangement of the tear tape surrounding the metallized identification tape, pressed against the outer wall of the object wrapped by the wall of the heat-shrinkable sleeve, with in addition a detection antenna sandwiched between the metallized strip and the adhesive face of the tear strip;
• FIG. 6 is a perspective view illustrating a second embodiment of the invention, according to which the tear strip enveloping on both sides the metallized identification strip is arranged in a circumferential direction;
• FIG. 7 and 8 illustrate two objects coated with an envelope of the type of that of Figure 6, heat-retracted on the body of the associated object.
• FIG. 1 illustrates a safety envelope 20 according to the invention, said envelope being constituted by a sleeve 21 made of heat-shrinkable plastic, which is open at its two ends, said sleeve being shown not perfectly cylindrical, but in the form of an open sheath with two end folds, to recall that this type of sleeve is obtained by cutting a flattened sheath unwound from a coil.
• the sleeve 21 is produced from a continuous sheath itself obtained by putting edge to edge a film folded back on itself, with sealing at the level of the overlap zone, by forming a noted flap. 28.
• the sleeve 21 is equipped, on its internal face, denoted 21.1, with a tear strip 22 and a metallized identification strip 23.
• the metallized strip 23 is non-adhesive, and it is sandwiched between the internal face 21.1 of the sleeve 21 and an adhesive face of the tear strip 22, this tear strip 22 projecting from both sides of the metallized strip 23 so as to adhere to the internal face of the sleeve 21 by zones located on either side of said metallized strip.
• FIG. 3 allows a better understanding of the multilayer arrangement, with the sandwiching of the metallized identification strip 23, which is preferably a holographic strip, between the adhesive face denoted 22.2 of the tear strip 22 , and the internal face 21.1 of the wall of the heat-shrinkable sleeve.
• the representation of Figure 3 is of course only a schematic representation, the bulging of the strip tear-off 22 enveloping the metallized strip 23 being in practice almost insignificant, insofar as the metallized strip has a thickness of the order of 40 to 60 ⁇ m.
• the adhesive coming from the adhesive face 22.2 of the tear strip 22 will actually be present along the parallel edges of the metallized identification strip 23.
• the metallized strip 23 is thus perfectly pressed against the internal face 21.1 of the sleeve 21, so that, for an observer looking at the external face 21.2 of the sleeve 21, the optical value for the legibility of the part metallized strip 23 is optimal, being in no way disturbed by any presence of varnish or glue.
• FIG. 3 also makes it possible to clearly distinguish the zones 30 by which the tear strip 22 adheres to the internal face 21.1 of the sleeve 21, on either side of the metallized identification strip 23.
• the metallized strip 23 has its metallized face denoted 23.1, facing the adhesive face 22.2 of the tear strip 22.
• the other face 23.2 of the metallized strip 23 remains applied, without interposition of glue or varnish, against the internal face 21.1 of the sleeve 21, and the metallized face 23.1 including the holographic function of the strip, is entirely concerned by the adhesive present on the adhesive face 22.2 of the tear strip 22.
• Such a arrangement considerably increases the fragility of the construction, and induces automatic delamination in the event of fraudulent manipulation.
• the internal face 22.1 of the tear strip 22 is not adhesive, so that, during the retraction of the sleeve on the object concerned, there is no adhesion between the external wall - the object and the tear strip. As a result, any interference which risks disturbing the holographic part trapped between the tear strip and the wall of the sleeve is avoided.
• any type of existing holographic strip with a complex bi or three-dimensional holographic pattern and / or incorporating a reading code, without in any way being limited to a particular width of this strip. It will in all cases optimal optical efficiency, allows ⁇ as to distinguish the holographic pattern, and read with complete reliability the possible code of integrated reading in the holographic stripe.
• a printed strip 6 to 10 mm wide will be used for the metallized strip 23, in which case the tear strip will of course be of wider width, so as to project at least 2mm on each side of the metallic strip 23.
• the absence of adhesive at the interface between the metallized strip and the wall of the sleeve preserves the visual integrity of the hologram, and this regardless of the type of image incorporated, because any risky interference is eliminated. to alter the metallization during the shrinkage of the sleeve.
• FIG. 4 illustrates several types of objects, by way of example, which are here containers denoted 10, all coated with a security envelope 20 which is of the type previously described. Acting in this case of containers with a closure device, the heat-shrinkable sleeve 21 surrounds a part of each container in the region of said container. closing device, to ensure inviolability.
• a container 10 is illustrated, the body 11 of which is surmounted by a possibly screwed cap 12, while in b) the container 10 is in the form of a bottle, the body 11 of which is surmounted by a closure cap 12, and that in c) the container 10 is a bottle whose body is surmounted by a screwed or clipped stopper 12.
• the container 10 is equipped with a heat-shrunk safety envelope 20 on its wall by closely surrounding the part of the container corresponding to the area of the closure device.
• an envelope is shown, the upper edge of which covers with a crown marked 29 the upper face of the capsule or cap 12.
• FIG. 5 The section on a larger scale in FIG. 5 makes it possible to clearly distinguish the multilayer arrangement at the level of the tear strip 22 and the metallized identification strip 23.
• a detection antenna or a chip between the metallized strip and the tear-off strip: a metallic wire of antenna 50 is sandwiched here between the metallized strip 23 and the adhesive face 22.2 of the tear-off strip 22
• the aforementioned impression 25 on at least one face of the tear strip 22 gives in this case an additional advantage by hiding the antenna or the chip thus integrated in the sleeve.
• the rear strip chage 22 and the metallized strip 23 extended along a generatrix of the sleeve 21, over the entire height of the latter. It is however possible, as a variant, to provide that the tear strip 22 and the metallized strip 23 extend circumferentially, over the entire internal periphery of the sleeve 21.
• FIG. 6 Such an alternative embodiment is illustrated in Figure 6, where we recognize, with the same references as above, the tear strip 22 sandwiched on either side of its edges, the metallized strip d 'identification 23.
• This strip 23 is shown in gray, it being understood that it is seen by transparency through the wall of the sleeve 21. It has also been illustrated the presence of two lines of micro-perforations 27, on either side of the tear strip 22.
• the gripping tab 24 is not an extension of the tear strip 22, but is obtained by cutting, here substantially in arc of circle, denoted 31, practiced in the wall of the sleeve 21.
• FIGS. 7 and 8 illustrate two objects 10 coated with a heat-shrunk safety envelope thereon, the structure of which corresponds to that previously described with reference to FIG. 6.
• FIG. 7 thus illustrates a packaging envelope 20, enveloping an object 10 which is a fragrance diffuser, the body 11 of which is distinguished by a cap forming a pusher 13 equipped with a spray nozzle 14, the circular connection zone corresponding to a significant variation in cross section between the body 11 and the cap 13.
• the tear strip 22 and the metallized strip 23 thus extend circumferentially, over the entire internal periphery of the sleeve 21, here at the level of the large variation in section between the body and the cap. the object. It is then advantageous to provide that the tear strip 22 is made of heat-shrinkable plastic, so as to have the same transverse shrinkage as the wall of the sleeve 21. It may also be provided that the metallized strip 23 is, it also, produced from a strip of ther o-retractable plastic material, so as also to have the same transverse shrinkage as the wall of the sleeve 21.
• FIG. 8 illustrates another object 10 such as a bottle for which the heat-shrink sleeve 21 simultaneously performs a labeling function and a tamper-evident function.
• the heat-shrinkable tear strip 22, sandwiching the metallized strip 23, can precisely be provided at the lower edge of the stopper which is for example screwed onto the body of the bottle, allowing a clean and homogeneous opening over 360 °.
• the labeling function is then permanently preserved by the lower portion 21.10 of the heat-shrink sleeve which remains on the main body of the bottle, after detachment of the tear strip 22.
• the upper portion of the sleeve 21, concerning the area of the stopper of the bottle, is noted 21.20.
• a gripping tab 24 is also provided, connecting to two lines of micro-perforations. 27, on either side of the adhesion zones of the tear strip 22 projecting from each of the parallel edges of the non-adhesive metallized strip 23.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Burglar Alarm Systems (AREA)
• Wrappers (AREA)
• Packages (AREA)
• Thermotherapy And Cooling Therapy Devices (AREA)
• Orthopedics, Nursing, And Contraception (AREA)
• Closures For Containers (AREA)
• Infusion, Injection, And Reservoir Apparatuses (AREA)
• Gloves (AREA)
• Laminated Bodies (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=9526562

Family Applications (1)

Country Status (8)

Cited By (1)

Families Citing this family (9)

Family Cites Families (7)

• 1998
  • 1998-05-20 FR FR9806398A patent/FR2778892B1/fr not_active Expired - Fee Related
• 1999
  • 1999-05-12 AT AT99918057T patent/ATE284357T1/de active
  • 1999-05-12 EP EP99918057A patent/EP1082256B1/de not_active Expired - Lifetime
  • 1999-05-12 AU AU36114/99A patent/AU3611499A/en not_active Abandoned
  • 1999-05-12 BR BR9910592-6A patent/BR9910592A/pt not_active IP Right Cessation
  • 1999-05-12 ES ES99918057T patent/ES2233039T3/es not_active Expired - Lifetime
  • 1999-05-12 DE DE69922503T patent/DE69922503T2/de not_active Expired - Lifetime
  • 1999-05-12 WO PCT/FR1999/001136 patent/WO1999059888A1/fr active IP Right Grant

Non-Patent Citations (1)

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