EP0521618A2 - Poche avec moyens pour faciliter l'amorçage de déchirure - Google Patents

Poche avec moyens pour faciliter l'amorçage de déchirure Download PDF

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Publication number
EP0521618A2
EP0521618A2 EP92305035A EP92305035A EP0521618A2 EP 0521618 A2 EP0521618 A2 EP 0521618A2 EP 92305035 A EP92305035 A EP 92305035A EP 92305035 A EP92305035 A EP 92305035A EP 0521618 A2 EP0521618 A2 EP 0521618A2
Authority
EP
European Patent Office
Prior art keywords
pouch
area
walls
layer
weakened
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Withdrawn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
EP92305035A
Other languages
German (de)
English (en)
Inventor
Kimberly Jae Lynn
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.)
Mondelez International Inc
Original Assignee
Kraft General Foods 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 General Foods Inc filed Critical Kraft General Foods Inc
Publication of EP0521618A2 publication Critical patent/EP0521618A2/fr
Withdrawn legal-status Critical Current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
    • 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
    • B65D75/5805—Opening or contents-removing devices added or incorporated during package manufacture for tearing a side strip parallel and next to the edge, e.g. by means of a line of weakness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • 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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
    • B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
    • B65D33/2516—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor comprising tamper-indicating means, e.g. located within the fastener
    • B65D33/2533—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor comprising tamper-indicating means, e.g. located within the fastener the slide fastener being located between the product compartment and the tamper indicating 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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/30—Deformable or resilient metal or like strips or bands

Definitions

  • the invention relates to packaging, and more particularly to a pouch having means to facilitate unaided manual tear initiation.
  • Laminated films are commonly used in the packaging art for hermetic pouches for perishables.
  • the films are generally maintained in rolls or webs and fed into apparatus in which the pouches are generated in a form, fill and seal operation.
  • Strength and toughness are required of the pouches to withstand the stress and wear experienced during the form, fill and seal operation and subsequent handling. Barrier properties are also required.
  • the materials chosen for the various layers of the laminated films include polymeric films of, e.g., nylon, polyester, or polyethylene, and/or metal foils composed of, e.g., aluminum.
  • Labels may be printed on a surface which is at the interface of two layers after lamination to avoid exposure of the labels to environmental wear factors while also avoiding contact between the product and the label.
  • a pouch having a sealed edge portion which is weakened in a predetermined area to facilitate tear initiation.
  • the weakened area is confined to a minor portion of a seal area extending along one side edge of the pouch so that the pouch may readily be opened by tearing inward from the edge through the weakened area.
  • the remainder of the seal area is resistant to such tearing to avoid accidental tear initiation at undesired locations.
  • Each of the walls of the pouch is preferably of laminated construction, having at least one barrier layer.
  • the weakened area is preferably made susceptible to tearing by provision of a plurality of discontinuities in at least one layer of at least one of the walls, with at least one barrier layer in each wall remaining intact.
  • two weakened areas are provided opposite one another on upper portions of the side edges of the pouch, in proximity to the upper edge of the pouch, whereby the top of the pouch may be torn off from either side.
  • the pouch may have a reclosable closure extending across its width between its side edges beneath the weakened areas.
  • the reclosable closure may comprise a pair of complementary, interengageable zipper strips, or may in the alternative comprise a bendable metal strip segment secured to one of the walls.
  • FIG. 1 is a plan view of a blank for forming a pouch in accordance with the invention.
  • FIG. 2 is a fragmentary sectional view of a weakened area of the blank of FIG. 1.
  • FIG. 3 is a perspective view of a pouch in accordance with a first embodiment of the invention.
  • FIG. 4 is a fragmentary plan view of a pouch in accordance with a second embodiment of the invention.
  • FIG. 5 is a sectional view of the pouch of FIG. 4, taken substantially along line 5-5 in FIG. 4.
  • FIG. 6 is a plan view of a pouch in accordance with FIG. 4, shown in a reclosed configuration.
  • FIG. 7 is a fragmentary plan view of a pouch in accordance with an embodiment of the invention.
  • FIG. 8 is a sectional view taken substantially along line 8-8 in FIG. 7.
  • FIG. 9 is a perspective view of a pouch in accordance with FIGS. 7 and 8, shown after opening.
  • FIG. 10 is a plan view of the pouch of FIGS. 7-9, shown in reclosed configuration.
  • the invention is preferably embodied in a pouch 10 comprising a pair of generally rectangular walls 12 heat sealed to one another about their respective peripheries to define a generally rectangular peripheral seal area 11 and an enclosed interior 13 between said walls.
  • the pouch 10 may be used for consumer packaging of a food product such as shredded cheese, or for various other packaging purposes.
  • the seal area in the illustrated embodiment has side portions 14 extending along opposite sides of the pouch, and upper and lower end seal portions 16 and 18 respectively, extending along the respective top and bottom edges of the package.
  • each of the side portions 14 of the peripheral seal area 11 has a weakened area 20 extending inward from the side edge 22 adjacent the upper end of the pouch.
  • Each weakened area 20 is confined to a minor portion of its respective side seal portion 14 of the peripheral seal area so that the pouch may readily be opened by tearing inward from the side edge 22 through the weakened area 20, whereas the remainder of the side portion 14 of the peripheral seal area 11 is resistent to such tearing.
  • the location of the areas of weakness 20 adjacent the upper end of the pouch enables the upper end seal portion 16 to be torn off while leaving the remainder of the pouch substantially intact to contain the food product without spillage when the pouch is maintained in an upright position.
  • Means 34 may be provided to facilitate tearing along a straight line across the top of the pouch.
  • the means 34 to facilitate tearing may take the form of a line of weakness, such as a perforation or score line, or in the alternative may simply comprise indicia such as a printed series of line segments to provide a visual guide.
  • a punched circular hole 35 is provided in the upper seal area to enable the pouch to be conveniently supported on a display hanger. The hole is located so that a portion of the upper seal area remains intact beneath the hole to maintain hermeticity.
  • each of the walls 12 of the package is preferably of laminated film construction, comprising at least two layers 24 and 26, of which at least one layer 26 is a barrier layer.
  • the film may include polymeric layers of, e.g., nylon, polyester, or polyethylene, and/or metal foils composed of, e.g., aluminum.
  • the weakened area 20 is defined by a plurality of discontinuities 28 in at least one layer of at least one of the walls.
  • the discontinuities 28 may be random scratches of varying depth, or may be punctures which extend entirely through one of the layers.
  • each of the walls may have at least one barrier layer left intact, free of the discontinuities.
  • the areas of weakness 20 may be confined to outer portions of the side seal areas 14, with non-weakened regions of the peripheral seal area 11 disposed between the weakened area 20 and the pouch interior 13. This arrangement enables employment of weakening techniques which penetrate all layers of the wall material, without loss of hermeticity.
  • FIG. 3 is particularly suitable for pouches in which reclosability is not needed.
  • the pouch includes a reclosable closure extending between the side edges immediately beneath the weakened areas, but is otherwise substantially similar to the pouch of FIG. 3, and accordingly the same reference numerals used in FIG. 3 are used to denote like elements in FIGS. 4-6 and 7-10.
  • the reclosable closure comprises a bendable metal strip segment 30 secured to one of the walls.
  • the bendable metal strip segment 30 may be of the type described and illustrated in U.S. Patent No. 4,898,280, the disclosure of which is incorporated herewith by reference, and may be secured by a length of sealing tape 31 to the pouch wall in the manner described in Patent No. 4,898,280.
  • the pouch of FIGS. 4-6 access to the pouch is obtained initially by tearing inward from a side edge 22 through one of the weakened areas 20 and across the pouch to enable the upper end seal area 16 of the pouch to be removed, leaving the product contained in the remaining portion of the pouch.
  • the pouch may then be reclosed by rolling the top of the remaining lower portion of the pouch down around the bendable metal strip segment 30, and subsequently bending end portions 32 of the metal strip segment inward to achieve the configuration shown in FIG. 6.
  • the metal strip segment 30 then retains the package in the closed position.
  • a reclosable closure 36 which comprises a pair of complementary interengageable zipper strips 38 and 40.
  • the pouch of FIGS. 7-10 is initially opened by tearing inward from a side edge 22 through one of the weakened areas 20 and across the pouch to enable the upper end seal area 16 of the pouch to be removed, leaving intact a lower portion including free edge areas 42 disposed above the zipper profiles.
  • the edge areas 42 are then manually grasped and pulled apart to disengage the complementary zipper profiles 38 and 40 from one another, and a product such as shredded cheese 44 may then be dispensed as illustrated in FIG. 9.
  • the pouch may be resealed simply by application of pressure to the opposite complementary zipper profiles 38 and 40 along their entire lengths. As illustrated in FIG. 10, this may be accomplished manually simply by squeezing the profiles between the thumb 52 and forefinger 54 and sliding the thumb and forefinger along the length of the zipper.
  • FIG. 1 illustrates a blank 45 for a pouch in accordance with the invention, shown as part of a continuous web 58 having a series of like blanks thereon.
  • the blank comprises wall portions 46 having areas of weakness 48 and 50 preformed thereon at the edges and at the center, and has a prepunched hole 56 in each of its wall portions 46.
  • the blank may be formed into a pouch in accordance with the invention by folding along its longitudinal axis and sealing it about its periphery in a vertical form, fill, seal operation. When the blank is folded, the areas of weakness 48 at the edges of the blank and the holes 56 meet, and the central area of weakness 50 is folded in half.
  • a studded wheel is applied to the web of material to be used as one of the layers in the walls of the finished pouch, prior to lamination of the layers.
  • the areas of weakness may be formed after forming, filling and sealing the pouch by a studded wheel similar to that described above, or by an abrasive implement which abrades one or both surfaces of the peripheral seal area in the desired region 22. In the latter case, the areas of weakness are limited to outer portions of the peripheral seal area so that the inner portion of the seal area remains intact to ensure that hermeticity is maintained.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Packages (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Wrappers (AREA)
  • Laminated Bodies (AREA)
EP92305035A 1991-06-24 1992-06-02 Poche avec moyens pour faciliter l'amorçage de déchirure Withdrawn EP0521618A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US71979791A 1991-06-24 1991-06-24
US719797 1991-06-24

Publications (1)

Publication Number Publication Date
EP0521618A2 true EP0521618A2 (fr) 1993-01-07

Family

ID=24891403

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92305035A Withdrawn EP0521618A2 (fr) 1991-06-24 1992-06-02 Poche avec moyens pour faciliter l'amorçage de déchirure

Country Status (7)

Country Link
EP (1) EP0521618A2 (fr)
JP (1) JPH05178366A (fr)
KR (1) KR930000349A (fr)
CN (1) CN1067858A (fr)
AU (1) AU1802692A (fr)
CA (1) CA2070198A1 (fr)
MX (1) MX9203152A (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0688541A3 (fr) * 1994-06-20 1996-03-27 Erich Hofacker Récipient pour contenir une dose unique d'adhésive pour une prothèse dentaire
FR2725957A1 (fr) * 1994-10-19 1996-04-26 Flexico France Sarl Sac inviolable et refermable perfectionne
US5682730A (en) * 1996-09-12 1997-11-04 Tenneco Packaging Plastic bag with bottom header
WO2000043272A1 (fr) * 1999-01-21 2000-07-27 Alusuisse Technology & Management Ag Emballage constitue d'un materiau composite sous forme de film et procede de production d'un tel emballage
US7334679B2 (en) 2004-03-15 2008-02-26 Hollister Incorporated Tear open package for hydrophilic-coated catheter
US7770726B2 (en) 2006-06-08 2010-08-10 Hollister Incorporated Catheter product package and method of forming same
DE102009043360A1 (de) 2009-09-29 2011-05-05 Nordenia Technologies Gmbh Aufreißverpackung
US8230664B2 (en) 2008-07-28 2012-07-31 Sonoco Development, Inc. Pouch opening feature and method for making the same
US8523843B2 (en) 2007-11-19 2013-09-03 Hollister Incorporated Vapor hydrated catheter assembly and method of making same
GB2506200A (en) * 2012-09-25 2014-03-26 Kraft Foods R & D Inc Sealed package with multiple lines of weakness
CN108033134A (zh) * 2017-12-07 2018-05-15 上海久诚包装有限公司 一种包装用塑料复合膜袋
CN112141539A (zh) * 2020-10-10 2020-12-29 山东绿赛尔食品有限公司 一种利于健康用油的食用油包装袋
CN112512935A (zh) * 2018-09-20 2021-03-16 福瑞托-雷贸易公司股份有限公司 包装食品

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4776533B2 (ja) * 2004-06-10 2011-09-21 株式会社細川洋行 包装袋及びその製造方法
JP5512847B1 (ja) * 2013-03-01 2014-06-04 東タイ株式会社 軟質フィルム包装袋
CN106185031A (zh) * 2016-08-22 2016-12-07 刘小兵 拉绳式开启塑料薄膜包装

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0688541A3 (fr) * 1994-06-20 1996-03-27 Erich Hofacker Récipient pour contenir une dose unique d'adhésive pour une prothèse dentaire
FR2725957A1 (fr) * 1994-10-19 1996-04-26 Flexico France Sarl Sac inviolable et refermable perfectionne
BE1010180A3 (fr) * 1994-10-19 1998-02-03 Flexico France Sarl Sac inviolable et refermable perfectionne.
US5682730A (en) * 1996-09-12 1997-11-04 Tenneco Packaging Plastic bag with bottom header
WO2000043272A1 (fr) * 1999-01-21 2000-07-27 Alusuisse Technology & Management Ag Emballage constitue d'un materiau composite sous forme de film et procede de production d'un tel emballage
CH692980A5 (de) * 1999-01-21 2003-01-15 Alcan Tech & Man Ag Verpackung.
US6726363B1 (en) 1999-01-21 2004-04-27 Alcan Technology & Management Ltd. Packaging comprised of a foil-shaped composite material and method for producing said packaging
US7111986B2 (en) 1999-01-21 2006-09-26 Alcan Technology & Management Packing made from a film-like laminate and process for production of this packing
US7207719B2 (en) 1999-01-21 2007-04-24 Alcan Technology & Management Ltd. Packing made from a film-like laminate and process for production of this packing
US7334679B2 (en) 2004-03-15 2008-02-26 Hollister Incorporated Tear open package for hydrophilic-coated catheter
US7770726B2 (en) 2006-06-08 2010-08-10 Hollister Incorporated Catheter product package and method of forming same
US8051981B2 (en) 2006-06-08 2011-11-08 Hollister Incorporated Catheter product package and method of forming same
US8356457B2 (en) 2006-06-08 2013-01-22 Hollister Incorporated Catheter product package and method of forming same
US8919553B2 (en) 2006-06-08 2014-12-30 Hollister Incorporated Catheter product package and method of forming same
US8523843B2 (en) 2007-11-19 2013-09-03 Hollister Incorporated Vapor hydrated catheter assembly and method of making same
US8230664B2 (en) 2008-07-28 2012-07-31 Sonoco Development, Inc. Pouch opening feature and method for making the same
DE102009043360A1 (de) 2009-09-29 2011-05-05 Nordenia Technologies Gmbh Aufreißverpackung
GB2506200A (en) * 2012-09-25 2014-03-26 Kraft Foods R & D Inc Sealed package with multiple lines of weakness
GB2506200B (en) * 2012-09-25 2017-08-16 Kraft Foods R & D Inc Sealed Package
CN108033134A (zh) * 2017-12-07 2018-05-15 上海久诚包装有限公司 一种包装用塑料复合膜袋
CN112512935A (zh) * 2018-09-20 2021-03-16 福瑞托-雷贸易公司股份有限公司 包装食品
CN112141539A (zh) * 2020-10-10 2020-12-29 山东绿赛尔食品有限公司 一种利于健康用油的食用油包装袋

Also Published As

Publication number Publication date
AU1802692A (en) 1993-01-14
CN1067858A (zh) 1993-01-13
MX9203152A (es) 1994-04-29
CA2070198A1 (fr) 1992-12-25
JPH05178366A (ja) 1993-07-20
KR930000349A (ko) 1993-01-15

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