EP2017188A1 - Garantieverschlussband für einen Lebensmittelbehälter - Google Patents

Garantieverschlussband für einen Lebensmittelbehälter Download PDF

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Publication number
EP2017188A1
EP2017188A1 EP20080104784 EP08104784A EP2017188A1 EP 2017188 A1 EP2017188 A1 EP 2017188A1 EP 20080104784 EP20080104784 EP 20080104784 EP 08104784 A EP08104784 A EP 08104784A EP 2017188 A1 EP2017188 A1 EP 2017188A1
Authority
EP
European Patent Office
Prior art keywords
band
end portion
seam
tamper evident
container
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20080104784
Other languages
English (en)
French (fr)
Inventor
Gregory Brian Collier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Intercontinental Great Brands LLC
Original Assignee
Kraft Foods Holdings Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kraft Foods Holdings Inc filed Critical Kraft Foods Holdings Inc
Publication of EP2017188A1 publication Critical patent/EP2017188A1/de
Withdrawn legal-status Critical Current

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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
    • 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
    • B65D2401/00—Tamper-indicating means
    • B65D2401/05—Tearable non-integral strips
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/48—Seals
    • Y10T292/507—Tag type

Definitions

  • tamper evident seal Food containers are often packaged with some type of tamper evident seal or band. These bands can also aid in keeping the container together prior to a consumer purchasing the product.
  • One common tamper evident seal is to use a band or plastic strip that is wrapped around the outer rim of a container. The tamper evident band is wrapped around the edge of the container lid and an upper portion of the container base. The band is held together by a seam that is typically placed between an inner surface edge of an outer layer and an inner layer, forming a continuous band around the container rim such that the lid and base cannot be separated without first removing the tamper evident band or breaking its seal around the container rim. This feature of the band provides the visual indication necessary to show if the product has been tampered with and already opened.
  • tamper evident band One drawback of using the tamper evident band is that it can prove difficult for the consumer to open.
  • the overlapping ends of the tamper evident band are often sealed together at a seam such that the band forms one continuous ring or band around the container rim, without any flap or loose end to grab.
  • the consumer In order for the consumer to open the band, the consumer must try to break through the band, either by hand or with the aid of an instrument that can cut through the band or rip through it.
  • some tamper evident bands have been manufactured with features to aid in the removal of the bands.
  • One such feature is placing a perforation through the band so it spans from a top edge to a bottom edge, to provide an easy tear point.
  • One problem with perforations has been that the perforation can be difficult to separate easily since the consumer may attempt to grasp a section of the band adjacent to the perforation and try to begin tearing through the perforation.
  • the typical perforated band has a high breakage rate during storage and transportation conditions.
  • the perforated band also has problems withstanding freezing temperatures during storage, such as temperatures as low as about -5°F.
  • the freezing temperatures can affect the durability of the perforation and often the typical perforated band can begin to separate at these colder temperatures and to break apart along the perforation.
  • the typical perforated band does not stand up well under these cold conditions and the integrity of the tamper evident band can be compromised.
  • a number of other variations of the single perforation band have also been tried, but have had similar problems.
  • double perforations or a tear tape with a perforation have been used but also with the high breakage rates associated with the single perforation band.
  • Another design consists of a seam with a small notch spaced from the seam; however, this design also can have a large breakage rate and can also prove to be difficult to open.
  • a tamper evident band for a food container is provided that minimizes or avoids breakage of the band during transportation and storage at freezing temperatures and provides a pull tab extending past the seam for an easy to open feature.
  • a strip of a tamper evident band is placed around a rim of the food container where two end portions are sealed together at a seam. One of the end portions overlaps the other to extend past this seam and functions as a pull tab for an easy to open feature.
  • the pull tab may provide extra material which covers and protects the seam, and a perforation, if used, to protect it from breakage and to help the band remain intact.
  • the pull tab extending past the seam is configured to withstand freezing storage temperatures and minimize or avoid breakage of the band during freezing and transportation, while providing an easy way to open the band.
  • the pull tab may have a free-standing end or the end may be temporarily held in place by an adhesive, which can be easily overcome to lift up the pull-tab and pull to separate the band.
  • the band may also include a perforation adjacent the seam to aid in opening. The perforation may be attached to the outer layer of the band by a light adhesive. The overlapping end of the pull tab can further protect the perforation by covering it and making it less susceptible to breakage.
  • FIG. 1 is a perspective view of a container with a tamper evident band
  • FIG. 2 is a partial cross-sectional view of the container with the tamper evident band taken along line 2-2 of FIG. 1 ;
  • FIG. 3 is an elevation view of a portion of the tamper evident band of FIG. 1 ;
  • FIG. 4A is an elevation view of a portion of a prior art tamper evident band
  • FIG. 4B is an elevation view of a portion of another prior art tamper evident band
  • FIG. 4C is an elevation view of a portion of another prior art tamper evident band
  • FIG. 4D is an elevation view of a portion of another prior art tamper evident band
  • FIG. 4E is an elevation view of a portion of another prior art tamper evident band.
  • FiG. 4F is an eievaiion view of a portion of another prior art tamper evident band.
  • FIGS. 1-4 An easy open tamper evident band for a food container and, in particular, an easy open tamper evident band for a frozen food container having a pull tab used to aid in opening, is disclosed herein and illustrated in FIGS. 1-4 .
  • the pull tab extends past a seam that seals the band to itself and keeps the band in place about a rim of a container.
  • the band, seam and the pull tab can withstand freezing temperatures, movements associated with transportation and storage conditions to minimize breakage of the band.
  • a food container 10 having an easy-open tamper evident band 20 around its rim.
  • the food container 10 has a lid 14 and a base 12 for containing a food product therein.
  • the band 20 can fit around an edge of the lid 14 and part of an upper section of the base 12.
  • the band 20 is sealed about the lid 14 and the base 12 such that the lid 14 cannot be removed unless the band 20 is first removed or torn off.
  • the band 20 has a first end portion 16 and a second end portion 18, such that when the band 20 is wrapped around the rim of the container 10 the first end portion 16 can become the outer end and the second end portion 18 can become the inner end, as shown in FIG. 2 .
  • the overlapping portions of the first and second end portions of the band 20 are sealed at a seam 24 to form a ring around a perimeter of the container 10.
  • the band 20 can be shrink-wrapped around the container 10.
  • the seam 24 can be positioned at an edge portion of the inner end portion 18 and spaced from the outer end portion 16, thus creating a free flap or pull tab 22, as shown in FIG. 2 .
  • the seam 24 may be sized sufficient to join the end portions 16 and 18, but preferably spans the entire height of the band 20, from an upper edge adjacent the lid 14 to a lower edge adjacent the base 12.
  • the seam 24 may also be generally linear, but other shapes may be used.
  • the tab 22 overlaps the inner end 18 and extends past the seam 24.
  • the outer end portion 16 of the band 20 becomes part of the pull tab 22 that can be grasped and pulled to easily break the seal of the band 20 at or near the area of the seam 24 to remove the band 20.
  • the pull tab 22 can be a free-standing pull-tab, as illustrated in FIG. 2 , or it can be held in place temporarily against the inner portion 20a of the band 20 by a light adhesive. If the tab 22 is in place a light tack glue can be used, typically at or near the edge portion of the outer end 16 so that as little of a surface area of the tab 22 as possible is tacked down to the inner portion 20a of the band 20. Alternatively, the entire tab 22 or any portion of it can be tacked down to the inner portion 20a of the band 20, as long as it remains easy to lift up. The light tack glue can help to keep the tab 22 in place until the band 20 is to be removed and to prevent the tab 22 from catching on anything prior to opening.
  • the band 20 may further include a perforation 26 adjacent the seam 24 to further aid in removing and tearing the band 20.
  • the perforation 26 is preferably located between the seam 24 and the outer end portion 16, and may be located closer to the seam 24 than the outer end portion 16. Furthermore, the perforation 26 can be located on the inner portion 20a of the band 20 so that when it is torn apart, it tears the band 20 into two pieces. Additionally, the perforation 26 can also contain an adhesive or light tack glue, that holds it in place against the outer band 20b.
  • the perforation 26 may take any shape but preferably is a line and may span the entire height of the band 20, from the upper edge adjacent the lid 14 to the lower edge adjacent the base 12.
  • the perforation 26 generally aids in directing the direction of the tear through the band 20 upon opening and helps to open or separate the band 20, allowing the inner layer and the outer layer of the band 20 to separate along the perforation 26 instead of or in addition to separating at the seam 24.
  • the band 20 will break at the perforation 26 before breaking at the seam 24 due to a directional change in material as it goes over a skirt of the container 10, which may require more force.
  • the perforation 26 enables a consumer to use less force than tearing a band without a perforation and thus makes the opening of the band 20 much easier.
  • the extra material of the first end 16 overlapping the second end 18 also overlaps the perforation 26, if one is present, and acts as a cover to protect the perforation 26 making it less susceptible to breakage.
  • the band 20 may optionally have a visual demarcation adjacent the outer edge of the tab 22 and located on the inner portion 20a of the band 20.
  • the visual demarcation aids in highlighting the location of the tab 22, since typically the band 20 will be made of a transparent material.
  • the visual demarcation may be a line that is generally parallel to the outer edge of the first end portion 16 and may further be a colored line, such as a red-striped line, for example.
  • the band 20 may also optionally contain other features such as a visual indicator to further highlight the existence of the visual demarcation and the tab 22.
  • a visual indicator may consist of a series of arrows, for example, which point to the visual demarcation.
  • the band 20 is typically wide enough such that it can be positioned about a lip of the lid 14 overlapping onto an upper portion of the base 12 adjacent the lid 14 in a closed state, and wraps around the entire perimeter of the container 10.
  • the lid 14 and base 12 of the container 10 may be of any size and shape, but typically generally round shaped containers are used.
  • the containers 10 and respective bands 20 must be able to withstand transportation and storage conditions which are required for the food product therein. Some of the storage conditions for the food and container 10 may be as low as about -5°F, over an extended period of time; the temperature being determined by the food product stored therein. Any type of food storage container or jar 10 may be used, such as a container used for the storage of a frozen dessert topping.
  • the container may be used to store food items, such as a whipped dessert cream topping, mayonnaise, or other condiments.
  • the material of construction of the band 20 may be any suitable material which will provide adequate closure about the rim and withstand storage and transportation conditions of the container 10 to minimize or prevent breakage of the band 20 prior to opening the container 10.
  • the band 20 may be a polyvinyl chloride (PVC) material that is heat-shrinkable, such as is available by Bonset, in Greensboro, North Carolina. Any size or thickness material may be used, such as a 2.5 mil thickness PVC layer. A height of about 12.5 mm to about 38 mm may be used for the band, and preferably about 34 mm is used.
  • the length of the pull tab i.e. the extra flap of material that overlaps the second end, can be from 6.4 mm to about 25.4 mm.
  • the light adhesive used to keep the first end 16 attached to the inner layer 20a or for keeping the perforation along the inner layer 20a attached to the outer layer 20b may be an adhesive such as AL7001 or AL7002 available from Alcoa Inc., in Pittsburgh, Pennsylvania.
  • the diameter of the container may be about 15 cm.
  • the consumer can grab a hold of the pull-tab 22, either by grasping its free-standing end or by separating it from the light glue keeping it tacked down to the inner portion 20a of the band 20, and apply a force to the band 20 that is great enough to break the band 20 in order to remove it from around the container 10.
  • the band 20 consists of only a seam 24, then the force applied should be great enough to overcome the seal at the seam 24 to separate the band 20 and to tear it off of the container 10.
  • the band 20 also has a perforation 26, then the force applied should be great enough to overcome at least one of the seal at the seam 24 or the perforation 26.
  • the band 20 can be presealed to itself by a band/film supplier, thus already containing the seam 24.
  • the pre-sealed band film can be supplied on a roll having a "lay-flat" width of about 245 mm, before cutting the roll.
  • the pre-formed band film can then be sent through standard bonding equipment, such as is provided by American Fuji Seal, in Fairfield, New Jersey. As the band film goes through the equipment, a mandrel can open the film and place it on the container 10 and a blade can cut the band film such that the height of the band film about the container 10 is about 34 mm.
  • the container 10 with the band film placed around it can then receive a blast of heat to preshrink the band film around the container 10, followed by the container 10 being passed through a heat tunnel that shrinks the band down even more about the container lid 14 and base 12, such that it fits tightly about the container 10.
  • the breakage rates of a variety of different bands were tested to determine which design band had the lowest breakage rate.
  • the different bands were produced and placed around similar shaped containers. Each container underwent a six-sided drop from a height of about 24 inches at 0°F. A six-sided drop consisted of dropping each container a total of six times on six different sides of the container from the specified height. Each container was then manually inspected to see if there were any breaks or tears in the band.
  • a control band was used that consisted of a single seam 224, as depicted in FIG. 4A , which is the band that is typically in use with many frozen food products and has a relatively low breakage rate (i.e., about 1.5% to about 4%), however, it can be difficult to open.
  • an easy-open band it is preferred for an easy-open band to have a breakage rate at least as good as the control band.
  • the other bands tested had a variety of features that tend not to be easy to open, as shown in FIGS. 4B-4F .
  • some of the different bands tested consisted of a single micro-perforation (perf) 226 (i.e., a micro-perf contains perforations that are very close to each other in comparison to a regular perforation) (see FIG. 4B ), a double perf 228 and 230 (see FIG. 4E ), tear tape 232 with double perf 228 and 230 (i.e., where a tear tape 232 provides a path along which the tear is initiated) (see FIG.
  • perf micro-perforation
  • the pull tab version of the band (designated as "Pull Tab with Seam") had a breakage rate of about 2% and performed the closest to the control in that its breakage rate was right around the range of the control band, which was desired.
  • an easy open tamper evident band for a food container is provided that allows for easy removal of the band and where the band can withstand transportation and cold temperatures.
  • the disclosure is not limited to the aspects and embodiments described hereinabove, or to any particular embodiments.
  • Various modifications to the easy-open tamper evident band can result in substantially the same band.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
EP20080104784 2007-07-17 2008-07-17 Garantieverschlussband für einen Lebensmittelbehälter Withdrawn EP2017188A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/778,762 US20090021026A1 (en) 2007-07-17 2007-07-17 Tamper evident band for a food container

Publications (1)

Publication Number Publication Date
EP2017188A1 true EP2017188A1 (de) 2009-01-21

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Application Number Title Priority Date Filing Date
EP20080104784 Withdrawn EP2017188A1 (de) 2007-07-17 2008-07-17 Garantieverschlussband für einen Lebensmittelbehälter

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US (1) US20090021026A1 (de)
EP (1) EP2017188A1 (de)
CA (1) CA2637993A1 (de)

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FR3047233A1 (fr) * 2016-02-02 2017-08-04 Eric Enjolras Sur emballage carton pour barquettes traiteur type multipack

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US8251242B2 (en) * 2005-06-10 2012-08-28 Pwp Industries Tamper-evident container with extended band
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US8251249B1 (en) 2005-06-24 2012-08-28 Pwp Industries Hangable tamper resistant packaging system
US7568589B2 (en) * 2005-06-24 2009-08-04 Pwp Industries Edge-tearing tamper-evident container
US8360262B2 (en) 2005-12-21 2013-01-29 Pactiv Packaging Inc. Integrated food packaging system having a cup, a container, and a cover
US8833589B2 (en) 2005-12-21 2014-09-16 Pactiv Packaging Inc. Enhanced tamper evident bowl with blocked tab
US8127961B2 (en) 2007-11-10 2012-03-06 Pwp Industries Double ribbed secure container
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US10220985B2 (en) 2016-10-28 2019-03-05 Genpak, Llc Tamper-evident container with a tabbed hinge
US10889413B2 (en) 2016-10-28 2021-01-12 Genpak, Llc Tamper-evident container with a tab extending beyond a hinge
US10894635B2 (en) 2016-10-28 2021-01-19 Genpak, Llc Tamper-evident container with a wide tab extending beyond a hinge
US10669080B2 (en) 2018-09-19 2020-06-02 Sonoco Development, Inc. Tamper evident closure
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Publication number Priority date Publication date Assignee Title
FR3047233A1 (fr) * 2016-02-02 2017-08-04 Eric Enjolras Sur emballage carton pour barquettes traiteur type multipack

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Publication number Publication date
CA2637993A1 (en) 2009-01-17
US20090021026A1 (en) 2009-01-22

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