WO2014186572A2 - Emballage refermable à ouverture segmentée - Google Patents

Emballage refermable à ouverture segmentée Download PDF

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Publication number
WO2014186572A2
WO2014186572A2 PCT/US2014/038192 US2014038192W WO2014186572A2 WO 2014186572 A2 WO2014186572 A2 WO 2014186572A2 US 2014038192 W US2014038192 W US 2014038192W WO 2014186572 A2 WO2014186572 A2 WO 2014186572A2
Authority
WO
WIPO (PCT)
Prior art keywords
package
film layer
opening
film
sealing panel
Prior art date
Application number
PCT/US2014/038192
Other languages
English (en)
Other versions
WO2014186572A3 (fr
Inventor
Andy J. CLARK
Louis Peter Fenech Iii
Gladys Odette MONCAYO
Carole Anne VOGT
Original Assignee
Intercontinental Great Brands Llc
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 Intercontinental Great Brands Llc filed Critical Intercontinental Great Brands Llc
Priority to CN201480025617.7A priority Critical patent/CN105189306B/zh
Priority to US14/891,871 priority patent/US20160122109A1/en
Priority to ES14730700.3T priority patent/ES2632453T3/es
Priority to EP14730700.3A priority patent/EP2996959B1/fr
Publication of WO2014186572A2 publication Critical patent/WO2014186572A2/fr
Publication of WO2014186572A3 publication Critical patent/WO2014186572A3/fr

Links

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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
    • B65D77/2028—Means for opening the cover other than, or in addition to, a pull tab
    • B65D77/2032—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container
    • B65D77/2044—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure
    • B65D77/2048—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure whereby part of the container or cover has been weakened, e.g. perforated or precut
    • B65D77/2056—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure whereby part of the container or cover has been weakened, e.g. perforated or precut the cover being weakened
    • B65D77/206—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure whereby part of the container or cover has been weakened, e.g. perforated or precut the cover being weakened so as to uncover one or more preformed openings made through some layers of the cover
    • 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
    • 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
    • B65D75/5855—Peelable seals
    • 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
    • B65D75/5888—Tear-lines for removing successive sections of a package
    • 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
    • B65D77/2068—Means for reclosing the cover after its first opening
    • B65D77/2096—Adhesive 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
    • B65D2577/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
    • B65D2577/10—Container closures formed after filling
    • B65D2577/20—Container closures formed after filling by applying separate lids or covers
    • B65D2577/2075—Lines of weakness or apertures
    • B65D2577/2091—Lines of weakness or apertures in cover

Definitions

  • This disclosure relates generally to flexible packaging, and in particular, to flexible packages with resealable openings.
  • These flexible film packages can provide a lightweight package with a hermetic seal.
  • a partial or substantial hermetic seal makes such flexible film packages particularly useful for storing a variety of food products, including, for example, crackers, chewing gum, chocolate, cookies, cheese sandwiches, biscuits, candy, meat products, and dried fruits and vegetables.
  • such flexible film packages may be used for non-food applications such as medical, pharmaceutical, or industrial packaging applications.
  • some of these flexible film packages also may contain structural supports, such as a frame or tray, whereas others may only contain the products to be packaged.
  • One type of flexible film package is formed from a single web of material that is formed or wrapped around a product. These types of packages can be formed by enveloping or wrapping the product with the web of material and forming a longitudinal seal, such as a fin, bottom, or lap seal with two edge portions of the web of material. A pair of end seals may then be formed in the web to form the packages. In other embodiments, packages may be formed from more than a single web of material and with at least one side-seal. Because these types of packages can provide hermetically sealed enclosures, they are suitable for packaging food products.
  • Flexible film packages have many advantages over other containers. For example, flexible film packages may be manufactured at a substantially lower cost than many entirely rigid containers and may be substantially tighter in weight, which results in reduced transportation costs. Further, by being primarily comprised of flexible film, such packages do not require the same amount of storage space as primarily rigid containers.
  • Flexible film packages having a reseaiable opening are provided.
  • the package is comprised of a flexible film with at least a first film layer and a second film layer with a reseaiable adhesive disposed between at least portions of the first and second film layer.
  • the flexible film defines at least a portion of an interior cavity where contents, such as discrete food articles, can be stored and a package opening that provides access to the discrete food articles.
  • the package opening is a segmented opening with a plurality of opening windows separated by cross ties that extend between opposing sides of the opening to improve package resealabitity.
  • a segmented package opening has at least two adjacent opening windows. These may be separated by a portion of the second film layer, such as a cross tie.
  • a single sealing panel may selectively cover at least two opening windows that provide the user access to the interior of the flexible film package.
  • the cross ties help retain the size of the opening such that it does not become too wide or bow outward along its sides, especially during package resealing. If the package has an aligned reinforcing structure, the resealing feature may be further improved by having a supporting surface against which a user may press to reseal the sealing panel with a remainder of the package.
  • the segmented opening may help consumers with portion control. More particularly, the sealing panel and the segmented package opening allow the contents to be sequentially exposed as the sealing panel is lifted to sequentially expose the opening windows. As outlined further beJow, a reinforcing structure within the package may further assist with sequential exposure or access to the package contents.
  • the flexible film has a first pair of edge portions forming a first end seal, a second pair of edge portions forming a second end seal, and a third pair of edge portions forming a longitudinal seal extending from the first end seal to the second end seal.
  • a longitudinal seal may include a lap seal with edges of the film overlapping one another or a fin seal with the inner portions of the third pair of edge portions sealed together.
  • the flexible film may have a number of side seals. Whether end seals, side seals, or longitudinal seals, the seals formed in the flexible film package may have at least a partial, initial hermetic seal to provide at least a partial barrier against ambient atmosphere.
  • the seals forming the package may be hermetic or at least partially or substantially hermetic.
  • the package may include seals formed by a variety of processes such as, for example, a hot seal process, a cold seal process, a low tack- seal process (including employing a low tack adhesive or fastener), a sonic waves process, and combinations thereof.
  • a segmented opening is provided.
  • the opening is large enough to provide access to each of the discrete food articles within the flexible film package once a sealing panel, which covers the segmented opening, is released and lifted upward from a remainder of the flexible film package.
  • the configuration of the opening may depend, in part, on the configuration of the flexible package and the articles therein.
  • an elongated package may have an elongated opening to thereby allow sufficient access to each of the articles within the package.
  • the discrete food articles are configured to be accessed and removed individually through the segmented package opening.
  • a second cut or series of cuts formed in the second film layer defines the segmented package opening.
  • the segmented package opening may have cross ties extending across the package opening.
  • the cross tie is comprised of portions of the second film layer defined by the series of second cuts.
  • a first end of the cross tie may be integrally formed with a first side of the segmented package opening and a second end of the cross tie may be integrally formed with a second side of the segmented package opening.
  • resealab!e adhesive is disposed between the cross tie and the sealing panel when the flexible film package is in the closed configuration.
  • the cross tie has a width in the range of about I mm to about 20mm.
  • the cross tic has a width in the range of about 2mm to about 5mm.
  • the package has one cross tie that forms two opening windows through which the discrete food articles can be accessed and removed from the package.
  • the package has two cross ties disposed across the segmented opening to form three opening windows through which the discrete food articles can be accessed and removed from the package. Jt is anticipated that numerous cross ties and associated opening windows may be formed in the package.
  • a first cut in the first film layer forms a sealing panel that is releasable from the second film layer to expose the segmented package opening.
  • the flexible film package may be formed in a variety of manners.
  • the sealing label may be a discrete label that is applied to the second film layer.
  • the first cut of the sealing panel creates a discrete sealing label that is provided as the sealing panel.
  • the first and second film layers forming the flexible film are not coextensive with one another.
  • the flexible film package may be comprised of coextensive flexible film layers such that the sealing panel and segmented package opening are built-into the package.
  • the first cut may be formed during manufacturing of the package after the fust film layer and the second film layer are joined together
  • the flexible film package has a first film layer with a length or width that is shorter than the length or width of the associated second film layer, and the other of the length of width is substantially coextensive with the second film layer.
  • the sealing panel may have a gripping portion such as a pull tab.
  • the package may further include a package integrity feature that provides a consumer or user an indication when the package has been previously opened.
  • a resealable adhesive may include any adhesive or cohesive that provides for resealing or readhering the first and second film layers together after the package has been opened.
  • the resealable adhesive may be disposed throughout the area between the first and second film layers.
  • the resealable adhesive is disposed in only some areas between the first and second film layers such that the resealable adhesive may be pulse coated or pattern applied.
  • the pattern application process may dispose only resealable adhesive, or it can dispose pennanent adhesive in addition to the resealable adhesive.
  • the pressure sensitive or resealable adhesive is neutral and non-reactive with the product being packaged.
  • the pressure sensitive or resealable adhesive may include a cold formed adhesive, a hoi melt adhesive, a cold seal adhesive, a natural or synthetic latex adhesive, a low tack adhesive, ethylene vinyl acetate (EVA), an acrylic adhesive (sucb as a water-based or solvent acrylic adhesive), a styrene block copolymer adhesive, a butyl rubber adhesive, a silicone rubber adhesive, a natural rubber adhesive, a nitriles adhesive, an acrylic emulsion adhesive, an acrylic water-based adhesive, and combinations thereof.
  • the pressure sensitive or resalable adhesive may be extruded, coextruded, printed, or a combination thereof.
  • the cuts may be mechanical or laser scored cuts formed in a variety of manners or processes.
  • a laminate for producing flexible film packages includes a web of flexible film having a web thickness, a web width and a longitudinal axis, wherein the web has at least first and second film layers with a resealable adhesive disposed in between at least portions of the first and second film layers.
  • the web of flexible film is configured to be formed into a series of packages or portions of a series of packages where each package includes a first cut in the first film layer to form a sealing panel that is reieasable from the second film layer to expose a segmented package opening and a series of series of second cuts in the second film layer to form the segmented package opening.
  • a repeating pattern is disposed in the first and second film layers of the web.
  • the web of flexible film is configured to be formed into a series of packages or portions thereof where each package includes a second film layer with cuts therein defining a segmented package opening and a sealing panel disposed over the portion of the second layer having the cuts formed therein.
  • the package includes a package opening tab built into the laminate.
  • the first film layer has a width that is smaller than the width of the second film layer.
  • the first and second film layers have the same widths such that the film layers are substantially coextensive with one another.
  • the flexible film packages may have a variety of configurations, including, for example, a bag, a pouch, a rectilinear-shape, a cylindrical-shape similar to a siug package, and a column-shape, among others.
  • the package configuration and shape are primarily influenced by the products contained within the package, in part, due to the flexibility of the flexible film laminate.
  • the package configuration is primarily influenced by structure within the package such as an internal reinforcing structure or structure forming an external portion of the package.
  • such a reinforcing structure may include a semi-rigid frame or tray, a rigid frame or tray, a paperboard frame or tray, or any other supporting structure contained within the package besides the food product or articles.
  • the reinforcing structure includes an upper flange that provides a reseal surface upon which a consumer may push to reseal the sealing panel to the second film layer.
  • the reinforcing structure does not provide such a reseal surface.
  • the package configuration and shape will be influence by both the food product contained within the package and the internal reinforcing structure.
  • the flexible film packages may be produced in a number of manners.
  • the flexible film packages may be formed around the food product or may be fully or partially formed and then filled with the food products, in addition, it is anticipated that the flexible film packages may be formed in-line just before the food product is packaged or formed around the food product. In some applications, it may be desirable to form the flexible film laminate or even the entire flexible film package off-line well before the products are packaged.
  • the flexible film package has a tray with an upper surface or flange upon which the flexible film is directly adhered to form the package interior.
  • the flexible film has a series of cuts that form the segmented package opening and a sealing panel disposed over the segmented package opening.
  • the segmented package opening also may have cross ties extending across the opening. It is anticipated that several such flexible film packages may be formed together and such packages may have a line of weakness, such as a perforation line or score line, usable to separate the packages. In this manner, the line of weakness perm its the trays and the flexible film of adjacent packages to be easily separated from one another.
  • the first film layer of the flexible film may include a discrete label, may be coextensive with the second film layer, or may have a length or width that is shorter than the length or width of the associate second film layer.
  • the tray may form separate package compartments for the food contents.
  • a line of weakness such as a perforation line or score line, may extend through the tray, such that a consumer or user may remove one of the individual compartments from the remainder of the package.
  • the entire sealing panel may remain attached to the remainder of the package such that the sealing panel may be wrapped around at least a portion of the remaining compartments.
  • a consumer can remove the empty compartments from the remainder of the package before storing the package.
  • the flexible film package may include a tray with a single layer of film attached to the flange.
  • the sealing panel may have at least one line of weakness disposed therein and multiple pull tabs.
  • the tray may have at least two compartments with a wall and a flange attached to the upper end of the wall. The compartments may be joined at their flanges where a line of weakness in the tray may be disposed.
  • the panel line of weakness and tray line of weakness may be disposed adjacent one another and further may be linear or may include an arcuate portion.
  • FIG. 1 is a perspective view of a flexible package in accordance with a first exemplary embodiment
  • FIG. 2 is a perspective view of the flexible package of FIG. I in a partial open configuration
  • FIG. 3 is a perspective view of the flexible package of FIG. 2 in a further open configuration: (0030]
  • FIG. 4 is a top schematic view of a segment of a laminate configurable to form the package of FIG. i ;
  • FIG. 5 is a cross section view of the flexible package of FIG. I taken along line 5-5.
  • FIG. 6 is a perspective view of a flexible package in accordance with a second exemplar)' embodiment
  • FIG. 7 is a cross section of the flexible package of FIG. 6 taken along line 7-7;
  • FIG. 8 is a perspective view of an alternative flexible package in accordance a third exemplary embodiment
  • FiG. 9 is a perspective view of the flexible package of FIG. 8 in a partial open configuration
  • FIG. 10 is a top schematic view of a segment of a laminate configurable to form the package of FIG. 8;
  • FIG. 11 is a perspective view of a flexible package in accordance with a fourth exemplary embodiment
  • FIG. 12 is a perspective view of the flexible package of FIG. 11 in a partial open configuration:
  • FIG. 13 is a top schematic view of a segment of a laminate configurable to form the package of FIG. 1 1;
  • FIG. 14 is a perspective view of a flexible package in accordance with a fifth exemplary embodiment
  • FIG. 15 is a perspective view of the flexible package of FIG. 14 with additional flexible film packages disposed adjacent thereto;
  • FIG. 16 is a perspective view of a flexible package in accordance with a sixth exemplary embodiment
  • FIG. 17 is a perspective view of the flexible package of FIG. 16 in a partial open configuration
  • FIG. 18 is a perspective view of a flexible package in accordance with an seventh exemplary embodiment
  • FIG. 19 is a perspective view of the flexible package of FIG. 18 in a further open configuration
  • FIG. 20 is a bottom view of a portion of the flexible film package of FIG. 19;
  • FIG. 21 is perspective view of a flexible package in accordance with an eighth exemplary embodiment
  • FIG. 22 is a perspective view of the package of FIG. 20 in a further open configuration
  • FIG. 23 is a perspective view of a flexible package in accordance with a ninth exemplary- embodiment.
  • the flexible film package 5 is formed from a flexible film laminate 10 (see, e.g., FIG. 4) and includes a first film layer 12 and a second film layer 14.
  • a pressure sensitive adhesive or resealable adhesive 16 (see, e.g.. FIG. 2) is disposed between portions of the first film layer 12 and the second film layer 14.
  • the resealable adhesive 16 is continuously disposed between the first and second fiim layers 12, 14, except for the portion that becomes the opening feature or pull lab 8.
  • the flexible film laminate 10 may be formed into series of flexible film packages 5 having interior cavities 18 and a set of package seals. As discussed above, a variety of different package configurations may be formed. In the illustrative embodiment of FIG. 1, the package has a cylindrical shape or a slug configuration.
  • the flexible film package 5 includes a first pair of edge portions 20 that are formed into a first end seal 22, a second pair of edge portions 24 that become a second end seal 26, and a third pair of edge poitions 28 that are formed into a longitudinal seal 30 (FIG. 5).
  • the flexible film laminate is wrapped around the product or contents (possibly along with a reinforcing structure) or maybe configured to form an interior cavity to subsequently receive the product.
  • the third edge portions 28 are joined together and sealed together to thereby form a portion of an interior cavity mat is completely sealed once the end seals 22 and 26 are formed into the flexible film laminate 10.
  • the interior cavity may hold a food product 6, such as discrete food articles, or other consumer products.
  • the food products 6 disposed within the flexible film package 5 are accessible through a segmented package opening 38 that is disposed on the face of the package in between end seals 22, 26.
  • a sealing panel 40 is disposed over the segmented package opening 38.
  • the sealing panel 40 is defined by a first cut 42 in the first film layer 12.
  • the illustrative example of package 5 has a discrete label 41 providing the sealing panel 40, which has been formed by the first cut 42 prior to application of the discrete label 41 to the second film layer 14.
  • the scaling panel 40 may be a discrete label 41 cut from a portion of the first film layer 12 and this may occur prior to the creation of the package seals.
  • the discrete label 41 may be provided on a substrate that is removed prior to or after the application of the discrete label 41 onto the second film layer 14.
  • the segmented package opening 38 includes a plurality of opening widows 32 with a cross tie 34 disposed therebetween.
  • the opening windows 32a, 32 b, 32c are defined by a second cut 44 disposed in the second film layer 1 .
  • the second cut 44 may comprise a plurality of distinct cuts 44a, 44b, 44c formed into the second film layer 14 to create a plurality of opening windows 32a, 32b, 32c.
  • the second cuts 44 may form flaps 48 in the second film layer 14 that are lifted from the remainder of the second film layer 14 when the sealing panel 40 is lifted to expose the opening windows 32 of the segmented package opening 40.
  • the segmented package opening 38 has a plurality of flaps 48a, 48b, 48c that are lifted, at least partially, from the second film layer 14 to expose the opening windows 32a, 32b, 32c.
  • two of these flaps 48a, 48b are formed from second cuts 44a, 44b that are closed loops to form discrete panels that can be completely lifted from the remainder of the second film layer 14.
  • one of the second cuts 44c is not a closed loop, but instead, has ends that each form a hook, which inhibits tear propagation and helps keep the sealing panel 40 attached to a remainder of the package 5. Further, this creates a flap 48c that cannot be entirely disconnected from the remainder of the second film layer 14.
  • FIG. 6 a package 35 similar to package 5 is shown. Whereas FIG. 1 includes a second cut 44c that has first and second ends with a hook, the second cut 344c in FIG. 6 has no end and forms a closed loop. Thus, the flap 348c formed by the second cut 344c can easily be disconnected from the remainder of the second film layer 314. ⁇ this configuration, if a user or consumer anticipates consuming all of the food product within the package 35, such that the consumer is not interested in easily resealitig the package, the consumer may want to entirely remove the sealing panel 340 (comprised of the discrete label 341) from a remainder of the package 35.
  • each of the flaps 348a, 348b, 348c, formed by the second cuts 344a, 344b, 344c respectively, may be easily detachable from a remainder of the second film layer 314 such that the sealing panel 340 is easily removable from the package 35.
  • FIG. 7 illustrates a cross section of the package of FIG. 6 with the second layer 314 of the flexible film wrapped around the food product 36 and the sealing panel 340 disposed over the flap 348b formed by the second cuts 344b.
  • the second cuts 44a, 44b, 44c formed in the second film layer 1 also define the cross ties 34.
  • the cross ties 34 are narrow portions of the second film layer 14 that extends across the segmented package opening 38.
  • the cross ties 34 are relatively narrow and do not interfere with a consumer's ability to remove any of the food product 6 disposed within the package 5. Nonetheless, the cross ties 34 are substantial enough to withstand the forces associated with opening and closing the package 5 and do not tear, snap, or break during normal, regular opening and reclosing of the package.
  • the cross lie 34 may extend across the package opening 38 is any direction, including, for example, the machine or cross-machine direction.
  • a first width of the cross tie is determine by the land space of the second film layer 14 in between the second cuts 44a and 44b and the second width of the cross tie is determined by the land space of the second film layer 14 in between the second cuts 44b and 44c.
  • the cross tic 34 has a width in the range of about 1mm to about 20mm. In another configuration, the cross tie 34 has a width in the range of about 2mm to about 5mro.
  • a first end of the cross tie 34 may be integrally formed with a first side of the segmented package opening 38 and a second end of the cross tie may be integrally formed with a second side of the segmented package opening 38.
  • the rescalable adhesive 16 is disposed between the cross lie 34 and the sealing panel 40 when the flexible film package 5 is in the closed configuration.
  • the cross ties 34 improve the resealability of the package 5 in a number of manners.
  • the cross ties 34 help keep the sides of the segmented package opening 38 in spaced relation to one another, for example, by preventing the sides from bowing outwardly from one another to a large degree.
  • the reseaiab!e adhesive 16 disposed between the cross ties 34 and the sealing labei 40 help reseal the package opening when the package 5 is in the closed configuration.
  • a user or consumer To access the contents or food product 6 within the flexible film package 6, a user or consumer only needs to expose a portion of the segmented package opening 38. For example, as shown in FIG. 2, in a partial open configuration, a first opening window 32a is opened. Such a staged opening of the package 5 may be particularly useful for a consumer who needs a bit of help with portion control.
  • a portion of the discrete food articles such as a single serving, is visible and accessible through each of the opening windows. In this manner, the consumer has the satisfaction of eating all of the discrete food articles that can be seen through the opening window.
  • the portion control feature may be furthered by having a reinforcing structure block the visibility of the other food product disposed in the remainder of the flexible film package 5.
  • one of the opening windows 32 may be disposed adjacent a portion of the discrete food articles such that a single serving of the discrete food articles is visible and easily accessible through one of the opening windows. These separate opening windows easily indicate to the consumer the amount of the discrete food articles that corresponds to a single serving size. In this manner, the package assists consumers with portion control with regard to the food product.
  • the sealing panel 40 may require a spike or increase in the opening force when the sealing panel 40 is being lifted beyond each of the flaps 48.
  • the sealing panel 40 As the sealing panel 40 is lifted from the package, once the point of separation has reached the flap 48a, the sealing panel 40 generally becomes easier to lift. This occurs because prior to that position, sealing panel 40 is being separated from a larger portion of the second film layer 14 (across the width of the sealing panel 40), which necessitates separating the reseal able adhesive 16 from the second film layer 14 across its entire width.
  • the sealing panel 40 Upon reaching the location of the flap 48a, the sealing panel 40 becomes easier to lift because the flap 48a remains with the sealing panel 40, and thus, the area or portion of the sealing panel 40 being separated from the second film layer 14 (along the sides of the flap 48a) is smaller.
  • the sealing panel 40 When the sealing panel 40 has been lifted such that the flap 48a is completely separated from the second film layer 14, the sealing panel 40 must be separated from the cross tie 34 formed of the second film layer 14. This separation requires more force.
  • the force required to further open the package becomes greater due to the resealabie adhesive 16 disposed between the cross tie 34 and the sealing pane! 40.
  • the increased force required to further open the package 5 may indicate that the consumer is opening another compartment or opening window and thereby accessing another serving of the food articles.
  • the package will have a number of opening windows that corresponds to the number of servings within the package.
  • the window openings 32 may be equally sized. In other configurations, the window openings 32 may be dissimilarly sized.
  • the flexible film package 5 also may include a reinforcing structure 46.
  • the reinforcing structure 46 may include a semi-rigid frame or tray, a rigid frame or tray, a paperboard frame or tray, or any other supporting structure contained within the package besides the food product or articles.
  • the reinforcing structure 46 may include a surface such as an upper flange that provides a reseai surface.
  • the reinforcing structure 46 includes a bottom 46a, sides 46b, and one or more reinforcing ribs 46c that extend from one side of the reinforcing structure 46 to another side of the reinforcing structure 46. In one configuration, the reinforcing ribs 46c extend across the flexible film package 5 and are disposed below the cross ties 34.
  • the reinforcing ribs 46c extend sufficiently upward from the bottom 46a such that the reinforcing rib 46c may block or impede access, including visual access, to the food articles from the adjacent opening windows 32.
  • the reinforcing structure 46 may have separate compartments into which the food contents 6 are disposed.
  • the reinforcing rib 46c extends from the bottom 46a to over half way up the height of the package. In another configuration, the reinforcing rib 46c extends from the bottom 46a to near or at the top of the flexible film package 5.
  • the sealing panel 40 may have a gripping portion or a pull tab 8 that a user or consumer can grasp to lift the sealing panel 40 and open the flexible film package 5.
  • the pull tab 8 may be formed in a variety of manners.
  • the pull tab 8 is disposed in an are where the resealable adhesive 16 is not applied (see, e.g., FIG.13).
  • the pull tab 8 may be formed by applying a deadening agent to any resealabfe adhesive 16 disposed in the area designated as the pull tab 8.
  • a substrate or covering portion such as a cut portion of film, paper, or other material, is used to cover the resealabie adhesive 16 to create a pull tab 8.
  • a package integrity feature may be incorporated into the package.
  • a number of different package integrity features may be incorporated therein.
  • the second cut 44a may include a portion that extends inwardly from an edge of the flap 48a such that a strip 52 of material is formed from the second film layer 14.
  • the strip 52 of material is stretched and eventually snaps or breaks to indicate that the package has been previously opened.
  • each of the opening windows of the segmented opening has a package integrity feature incorporated therein.
  • the flexible film package 15 has a first film layer that extends the entire length of the package, but does not extend the entire width of the package.
  • the flexible film package 15 is similar to the package 5 described above and the reference characters illustrated in FIGS. 8-10 are similar to those used to describe the flexible film package 5 with the addition of a * preceding the remainder of the reference numeral. While flexible film package 5 provided a discrete label 41 as the sealing panel 40, the flexible film package 15 includes a sealing panel 140 from a continuous layer of film 43 that is disposed along the entire width of length of the flexible film package 15. In this manner, the flexible film package 15 will h ve a first film layer 112 than extends less that the entire width of the second film layer 114.
  • the continuous layer of film 43 is disposed from the first end seal 122 to the second end seal 126.
  • the first cut 142 which forms the sealing panel 140, is typically formed after the first film layer 112 and the second film layer 114 are joined together.
  • the web of material, or matrix, outside the sealing panel 140 may be pulled up from the package 15 after application of the first film layer 112 to the second film layer 1 14 and formation of the sealing panel 140.
  • the flexible film package 15 of FIGS. 8-10 includes a sealing panel 140 formed from a layer of film continuously disposed from end to end of the flexible film package IS.
  • the layer of continuously disposed from may extend from side to side of the flexible film package.
  • Package 15 has a segmented package opening 138 similar to that described above. Further, the second cuts 144a, 144b, 1 Mc form flaps 148a, 148b, 148c that are lifted from the remainder of the second film layer 1 14 to expose the segmented package opening 138.
  • the flexible film package 1 15 has first and second film layers that are coextensive with one another.
  • the flexible film package i 15 is similar to the packages 5, 15 described above and the reference characters illustrated in FIGS. 11-13 are similar to those described above with the addition of an * 1 preceding the remainder of the reference numeral.
  • the coextensive film layers i l l 2, 1 1 14 have first and second cuts 1142, 1 144 formed therein such that the segmented package opening 1138 is built-in to the flexible film package 1 15.
  • the first and second cuts 1142. 1144 are t pically formed after the first and second film layers 1112, 1114 are joined together.
  • FIGS. 11-13 illustrates a package 11 with coextensive first and second film layers 1112, 11 14.
  • the package 115 has a segmented package opening 1 138 that is formed by the second cuts 1144 in the second film layer 1114.
  • the sealing panel 1140 is formed by a first cut 1 142 formed in the first film layer 1112.
  • the package 25 has a tray 246 with a flange or an upper surface 237 to which the flexible film 210 is adhered.
  • the package 25 is similar to those previously described and similar reference characters are preceded by a * 2 ⁇
  • the second film layer 214 is adhered to the upper surface 237 to seal the food contents 206 within the package 205.
  • the second film layer 214 has second cuts 244a, 244b disposed therein to create flaps 248a, 248b that can be lifted from the remainder of the second film layer 214 to expose opening windows 32a, 32b through which the food contents 206 can be accessed and removed.
  • the package 25 provides a segmented package opening 238 that can improve resealabiUt of the package and assist with portion control, but does not require an overwrap.
  • the opening 238 has a cross tie 234 formed by the series of second cuts 244a, 244b formed in the second film layer 214. Additional second layer cuts 244 may be incorporated into the package as well, depending on the number of desired opening windows. Further, depending on the desired configuration, the tray 246 may have reinforcing ribs or other members that separate the interior 18 of the package 25 into compartments similar to those discussed above.
  • the reinforcing ribs may be disposed beneath the cross ties 234 to provide a surface against which the consumer may push the sealing panel 240 to readhere the sealing panel 240 to a remainder of the package 25 and reseai the package 25.
  • the second layer cuts 244a, 244b may be formed similarly to the cuts 44 in FIG. 1 or to the cuts 344 in PIG. 6. If the second layer cuts 244a, 244b are formed similarly to those illustrated in FIG. 1, the second layer cut 244a disposed nearest the pull tab forms a closed loop such that a separable flap (that can be completely separated from the remainder of the second layer film 214) is lifted upward to expose a portion of the segmented opening.
  • the second layer cut 244b may have a pair of terminal ends that provide a tear-inhibiting feature and may not form a closed loop to prevent the flap 248b from being completely separated from the remainder of the second film layer 214. Regardless of the number of second layer cuts 244 and corresponding window openings formed into the second layer 214, the second layer cut 244b having the tear-inhibiting terminal ends remains disposed adjacent an end of the sealing panel opposite the pull tab.
  • FIG. 15 illustrates the flexible film package 25 disposed adjacent similar, unopened flexible film packages 25.
  • the flexible film packages 25 may have edges that are connected together and may have a line of weakness (such as a perforation line or score line) disposed therein to make the flexible film packages 25 easily separable from one another.
  • each of the packages 25 may include the segmented package opening 238 that is easily resea!ab!e.
  • the embodiments of FIGS. 14 and 15 arc manufactured with packages formed adjacent thereto, the package 25 also may be manufactured as a stand-alone package without adjacent packages connected thereto.
  • the package 45 has a tray 446 with a flange or an upper surface 437 to which the flexible film 4)0 is adhered.
  • the package 45 is similar to those previously described with similar reference characters preceded by a "4 ⁇ While the package 25 had a tray with one primary compartment that may be separated by reinforcing ribs, the tray 446 has separate compartments 447 that have separate side walls.
  • the flexible film 410 has a second film layer 414 that is adhered to the upper surface 437 of the tray 446 and the second cuts 444 disposed in the second film layer 414 create the opening windows 432 through which the food articles 46 are accessed.
  • a sealing panel 440 is lifted upward from a remainder of the package 45.
  • the series of second cuts 444 form cross tics 434 in the second film layer 414 that extend across the segmented package opening 438 and in between the opening windows 432.
  • the distinct compartments 447 are separable from one another. These compartments 447 may be separated before or after the contents within the distinct compartments 447 have been consumed.
  • the tray 446 and flexible film 410 include a line of weakness 449, such as a perforations line or a score line, disposed between the compartments 447.
  • the line of weakness 449 is disposed in the tray 449 and in the second film layer 12 at the position of the cross ties 443. In this manner, a consumer can tear off one compartment of the tray (such as compartment 447a) and the portion of the second film layer 414 adhered to that portion of the tray.
  • the entire sealing panel 440 may remain attached to the remainder of the package 45 such that the sealing panel 440 may be wrapped around the remaining portions of the tray 446 (such as compartments 447b, 447c). In this configuration, the consumer does not have to store the entire tray, but instead, can dispose of the empty compartments of the tray prior to storing the food package 45.
  • the package 55 has a tray
  • the package 55 is similar to those previously described with similar reference characters proceeded by a 5 ⁇ While package 45 had a two-layer film 410, the package 55 has a single layer of film 510. More particularly, there is no equivalent to the second film layer 414 in package 55. Instead, the flexible film 510 forms the sealing panel 540 and adheres directly to the upper surface 537 of the tray 556. In such a configuration, the second film layer cannot form the cross ties. Instead, the upper surface 537 of the tray 556 functions as a cross tie 534 that improves the resea!ability of the scaling panel 540.
  • the package 55 has a reseaiable adhesive 516 disposed between the sealing panel 540 and the cross tie 534 formed by the upper surface 537 of the tray 556, when the sealing panel 540 is in the closed configuration. Further, without the second film layer, the opening windows 532 are no longer formed by the series of second cuts in the second film layer, but instead, are formed by the upper surface 537 of the tray 556.
  • the tray 556 includes at least two compartments 547. As shown in FIGS. IS and 19, the flexible film package 55 includes three compartments 547a, 547b, 547c. Each of the compartments has a wall forming at least a portion of the compartment and a flange at the upper end of the wail. The compartments 547 are connected by the flange or upper surfaces 537.
  • the tray 556 also may include at least one line of weakness 549b that permits the compartments 547 to be easily separated from one another, similar to the lines of weakness 449 discussed above.
  • the package 55 includes a flexible film 510 forming a sealing panel 540 over a top surface of the package 55.
  • the sealing panel 540 covers the opening windows 532 created at the lop of the compartments 547.
  • the reseaiable adhesive 516 is disposed between portions of the upper surface 537 of the tray 556 and the sealing panel 540.
  • the reseaiable adhesive 516 may not be disposed in (he portions of the sealing panel 540 forming a pull lab 58 and those portions of the film 510 directly above the contents or the window openings 532.
  • FIG. 20 illustrates a bottom view of the sealing panel 540.
  • Sealing panel 540 includes a pattern applied reseaiable adhesive 516, though the reseaiable adhesive 516 also may be applied to the upper surface 537 of the tray, as opposed to the sealing panel 540.
  • the sealing panel 540 may further include at least one line of weakness 549a.
  • the panel lines of weakness 549a are disposed adjacent the tray lines of weakness 549b disposed in the tray. With the lines of weakness 549a, 549b disposed adjacent one another, a consumer can detach a compartment 547 and a portion 511 of the sealing panel 540 from a remainder of the package 55.
  • a second pull tab 58b may be formed by the line of weakness 549a.
  • the adhesive 516 may be pattern applied such that no adhesive is disposed in this portion of the sealing panel 540.
  • the pull tabs 58a, 58b, 58c may take a variety of configurations. In one configuration, the pull labs 58a, 58b, 58c have an arcuate portion. In another configuration, the pull tabs 58a, 58b, 58c are linear. In one example, a first edge of the sealing panel 540 with the pull tab 58a disposed thereon has an arcuate configuration, as well as the corresponding edge of the tray 547.
  • one of the first edge of the sealing panel 540 or the corresponding edge of the Iray 547 is linear whereas the other edge has an arcuate portion. Therefore, in one illustrative configuration, the pull tab 58a, 58b, 58c have an arcuate portion and the corresponding edge of the tray 547 is linear.
  • package 55 may assist consumers with portion control by requiring a spike or increate in the opening force when the sealing panel 540 is being lifted beyond the opening window 532.
  • the required opening force is larger prior to the opening window 532 because the resealable adhesive 16 is disposed across a larger area prior to the opening window 532.
  • the sealing panel 540 becomes easier to lift because less resealable adhesive 516 is adhering the sealing panel 540 to the tray 556 across the package width.
  • the sealing panel 540 when the sealing panel 540 has been lifted beyond the window 532, the sealing panel 540 must be separated from cross tie 534, and this separation requires more force.
  • the force required to further open the package becomes greater due to the resealable adhesive 51 disposed between the cross tie 534 and the sealing panel 540.
  • the increased force required to further open the package 55 may indicate to the consumer that another compartment or opening window is being accessed and that the consumer is thereby accessing another serving of the food articles.
  • the resealable adhesive 16 near the line of weakness 549 may be stronger that the rest of the resealable adhesive 516.
  • the resealable adhesive 516 may be disposed or treated in a manner such that the required opening force required to lift the sealing panel 540 from the package at the location of the line of weakness 549 is larger.
  • the packages 45, 55 operate similar those previously described because the force required to separate the compartments 447, 547 operates in a different direction that the force required to opening the package 45, 55 by lifting the sealing panel 440, 540 from the trays 446, 546.
  • the package 65 (FIGS. 21 and 22) has a segmented opening 638 in a different orientation.
  • the package 65 is similar to those previously described with similar reference characters proceeded by a '6'.
  • the segmented package opening 638 has a cross tie 634 that extends the length of the package 65 and may be formed in the machine direction or the cross machine direction, if desired.
  • the cross tie 634 is formed similarly to those described above by forming a series of second cuts 644 in the second film layer 614. Though the cross tie 634 is longer than those described above, it may still have a width in the range of about lmro to about 20mm and, in some configurations, between about 2mm to about 5mm.
  • FIG. 23 Another alternative configuration is illustrated in FIG. 23.
  • the package 75 is similar to previously described packages, but with similar reference characters proceeded by a '7'.
  • the segmented package opening 738 of the package 75 has cross ties 734 that extend in two directions.
  • the cross ties 734 extend in both the machine and cross- machine direction.
  • the sealing panel 740 may have additional portions of the second film layer 714 to which it can reseal.
  • a package with a larger or unusually shaped opening may be a particularly good candidate for cross ties 734 that extend in multiple directions.
  • the flexible film laminate may be formed of a variety of materials and can be disposed as a web of material on a roll or as individual blanks.
  • the flexible film laminate may be laminated, extruded, cast, blown, or a combination thereof.
  • the flexible film laminate may include several thin layers of material, such as thin layers of a polymer material.
  • the structure of the flexible film laminate may include a polyethylene terephthalate (PET) layer, polyethylene, an oriented polyproplylene (OPP) layer, a poJylactic acid (PLA) layer, a single layer (mono-web) polymer, a sealant layer (such as ethylene vinyl acetate (EVA), ionomer plastic, matallicine, organocfay, and the like), an ink or print layer, nylon, a metalized layer, such as a metalized oriented polypropylene (MET OPP) layer, paper, foil, an adhesive, and/or a non-woven material, among others.
  • PET polyethylene terephthalate
  • POPP oriented polyproplylene
  • PPA poJylactic acid
  • EVA ethylene vinyl acetate
  • EVA ethylene vinyl acetate
  • MET OPP metalized oriented polypropylene
  • the flexible film laminate may be a combination of several of the above-mentioned materials or film structures.
  • one flexible film laminate structure may include a PET layer, an ink layer, an adhesive layer, and a bi- axially oriented polypropylene (BOPP) layer
  • the structure may include a BOPP layer, an ink layer, a low-density polyethylene layer, and a metalized OPP.
  • the structure may include a surface lacquer layer, an ink layer, and a cavitated OPP.
  • the components of the flexible film laminate may be joined, for example, by adhesives or by an extrusion process.
  • the flexible film laminate may be described herein as having a first film layer, a second film layer, and/or an adhesive layer, the laminate may include additional layers beyond these three layers, and one of skill in the art would be able to adopt the teachings herein to accommodate additional layers of the flexible film laminate.
  • the pressure sensitive or resealable adhesive may include a cold formed adhesive, a hot melt adhesive, a cold seal adhesive, a natural or synthetic latex adhesive, a low tack adhesive, ethylene vinyl acetate (EVA), an acrylic adhesive (such as a water-based or solvent acrylic adhesive), a styrene block copolymer adhesive, a butyl rubber adhesive, a silicone rubber adhesive, a natural rubber adhesive, a nitriles adhesive, an acrylic emulsion adhesive, an acrylic water-based adhesive, and combinations thereof.
  • the pressure sensitive adhesive may include a magnetic substrate that reseais or recloses the package.
  • a magnetic material or magnetizable material may be incorporated into the film web to assist with reclosing the package.
  • Similar releasabie closures are illustrated in PCT International Application Nos. PCT/US20I 1/0541 19, filed September 30, 201 1, PCTYUS2011/057982, filed October 27, 2011, and PCT/US2011/058063, filed October 27, 2011, which are incorporated herein by reference in their entirety.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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Abstract

La présente invention concerne un emballage à film flexible qui possède une ouverture refermable. L'emballage est composé d'un film flexible qui possède au moins une première couche de film et une seconde couche de film, avec un adhésif refermable disposé entre des parties de la première et de la seconde couche de film. Le film flexible définit au moins une partie d'une cavité intérieure dans laquelle un contenu, comme des produits alimentaires distincts, peut être stocké, et une ouverture de l'emballage permet d'accéder aux produits alimentaires distincts. De plus, l'emballage possède une ouverture segmentée munie d'une pluralité de fenêtres d'ouverture séparées par au moins un élément transversal qui s'étend d'un côté de l'ouverture vers l'autre côté.
PCT/US2014/038192 2013-05-16 2014-05-15 Emballage refermable à ouverture segmentée WO2014186572A2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201480025617.7A CN105189306B (zh) 2013-05-16 2014-05-15 具有分段开口的可重新密封包装
US14/891,871 US20160122109A1 (en) 2013-05-16 2014-05-15 Resealable package with segmented opening
ES14730700.3T ES2632453T3 (es) 2013-05-16 2014-05-15 Envase resellable con abertura segmentada
EP14730700.3A EP2996959B1 (fr) 2013-05-16 2014-05-15 Emballage refermable à ouverture segmentée

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361824261P 2013-05-16 2013-05-16
US61/824,261 2013-05-16

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WO2014186572A2 true WO2014186572A2 (fr) 2014-11-20
WO2014186572A3 WO2014186572A3 (fr) 2015-01-08

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US (1) US20160122109A1 (fr)
EP (1) EP2996959B1 (fr)
CN (1) CN105189306B (fr)
ES (1) ES2632453T3 (fr)
WO (1) WO2014186572A2 (fr)

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Publication number Publication date
CN105189306B (zh) 2017-06-09
ES2632453T3 (es) 2017-09-13
US20160122109A1 (en) 2016-05-05
EP2996959A2 (fr) 2016-03-23
CN105189306A (zh) 2015-12-23
EP2996959B1 (fr) 2017-05-03
WO2014186572A3 (fr) 2015-01-08

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