EP0278625B1 - Packaging - Google Patents

Packaging Download PDF

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Publication number
EP0278625B1
EP0278625B1 EP19880300628 EP88300628A EP0278625B1 EP 0278625 B1 EP0278625 B1 EP 0278625B1 EP 19880300628 EP19880300628 EP 19880300628 EP 88300628 A EP88300628 A EP 88300628A EP 0278625 B1 EP0278625 B1 EP 0278625B1
Authority
EP
European Patent Office
Prior art keywords
incision
lines
edge zone
edge
blank
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.)
Expired
Application number
EP19880300628
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0278625A1 (en
Inventor
Eric Morley
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.)
Elopak Ltd
Original Assignee
Elopak Ltd
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 Elopak Ltd filed Critical Elopak Ltd
Publication of EP0278625A1 publication Critical patent/EP0278625A1/en
Application granted granted Critical
Publication of EP0278625B1 publication Critical patent/EP0278625B1/en
Expired 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/02—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
    • B65D5/06—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body with end-closing or contents-supporting elements formed by folding inwardly a wall extending from, and continuously around, an end of the tubular body
    • B65D5/067—Gable-top containers
    • B65D5/068—Gable-top containers with supplemental means facilitating the opening, e.g. tear lines, tear 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
    • B65D2231/00—Means for facilitating the complete expelling of the contents
    • B65D2231/02—Precut holes or weakened zones
    • 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
    • B65D2231/00—Means for facilitating the complete expelling of the contents
    • B65D2231/02—Precut holes or weakened zones
    • B65D2231/022—Precut holes or weakened zones for permitting the insertion of a tubular contents-removing device, e.g. a drinking straw

Definitions

  • This invention relates to a packaking blank and to a container.
  • United States Patent 3770185 discloses the use of a blank, for example consisting of fibreboard coated on both faces with paraffine or polyethylene, to form a unitary folded beverage containing carton having a gable top closure with a tear strip to provide a strawhole.
  • the tear strip is formed by two spaced-apart score lines in an outside surface of a gable top forming wall and the strawhole is formed by a closed-loop score line formed in the inside surface of the same wall, at a position beneath and between the spaced apart score lines.
  • the score lines are cut to a substantial overlapping depth (viz., 40 to 75 percent of the wall thickness) from opposite sides of the gable forming wall.
  • the spaced apart score lines extend from the top edge of the sealing fin of the top closure, in an initially convergent and then parallel manner, across one of the sealing sub-panels of the gable top closure and into the directly inward one of the obturating sub-panels of the closure.
  • the converging portions of the spaced apart score lines are substantially tangential to respective end portions of an arcuate recess formed in the top edge of the opposite sealing sub-panel, which recess is to facilitate gripping of the top end of the tear strip by the consumer.
  • the intention of this design is that, upon pulling the tear strip, a layer of material between the spaced apart score lines separates from the gable wall together with the entire thickness of the wall contained within the closed-loop score line.
  • the strip does not reliably tear in the intended manner.
  • a first reason is that it relies upon the coating of the fibreboard shearing at the base of the arcuate recess, which may not occur.
  • a second reason is that the shape of the recess provides a stronger attachment and greater support for the tear strip at its edges than at its centre, thus promoting tearing at its centre, rather than at its edges as intended.
  • a third reason is that, although the spaced apart score lines extend to the very top edge of the fin, such feature does not provide a very good indication to the consumer of the fin portion to be gripped nor does it provide a very good lead-in for the tearing action.
  • a blank for forming a flowable-substance-containing carton and formed with strawhole means at an edge zone of said blank said strawhole means comprising a tear strip bounded by two lines of incision extending transversely of said edge zone and penetrating through one surface of said blank which is to be the outside surface of said carton but not through the other surface thereof, a loop of incision situated between said two lines of incision, but penetrating through said other surface though not through said one surface, and a third line of incision extending adjacently to the blank edge of said edge zone from the zone of one of said two lines of incision to the zone of the other of said two lines of incision and penetrating through said other surface but not through said one surface.
  • a flowable-substance-containing carton formed from sheet material and formed with strawhole means at an edge zone of said material, said strawhole means comprising a tear strip bounded by two lines of incision extending transversely of said edge zone and penetrating through the outside surface of said material but not through the inside surface thereof, a loop of incision situated between said two lines of incision but penetrating through said inside surface though not said outside surface, and a third line of incision extending adjacently to the edge of said edge zone from the zone of one of said two lines of incision to the zone of the other of said two lines of incision and penetrating through said inside surface but not through said outside surface.
  • a flowable-substance-containing container formed from sheet material and formed, at a first edge zone of said material, with a tear strip bounded by two lines of weakness extending transversely of said edge zone, and a recess in the edge of a second edge zone of said material which is sealed face-to-face to said first edge zone, with the first and second edge zones directed outwards in a common direction, the innermost boundary of said recess being substantially a straight line extending along said second edge zone, and said recess extending at least from one to the other of the respective zones of said two lines of weakness.
  • the blank 1 is for forming a gable-top carton for containing milk or orange juice, for example.
  • the blank consists of paperboard coated on both faces with respective layers of suitable thermoplastics.
  • the blank is formed with four parallel score lines 2 which divide the blank into five panels 11 to 15, of which the panel 15 is a corner-sealing panel.
  • Score lines 3 perpendicular to the score lines 2 divide the row of panels 11 to 15 into a row of flat bottom closure panels 21 to 25, a row of main sub-panels 31 to 35, a row of top closure obturating sub-panels 41 to 45, and a row of top closure sealing sub-panels 51 to 55 for forming the sealing fin of the gable top closure.
  • score lines 4 provide for folding-in of the flat bottom closure and the gable top closure by the packer and for the folding-out of a spout of the gable top closure by a consumer.
  • the consumer may use a strawhole device provided in the carton top edge zone.
  • This device includes a tear strip 5 provided centrally of the sub-panels 42 and 52 and bounded by two incision lines 6 which extend perpendicularly to the score lines 3, across the sub-panel 52 and into the sub-panel 42.
  • the incision lines 6 penetrate through the plastics layer at the carton outside surface of the blank, but their penetration stops short of the plastics layer forming the carton inside surface of the blank.
  • a circular closed loop of incision 7. It penetrates through the plastics layer of the carton inside surface but stops short of the plastics layer of the carton outside surface. It is situated between the two lines 6.
  • the bottoms of the notches 8 have a third line of incision 9 extending from one to the other of them parallelly to the lines 3, in other words across the width of the tear strip 5.
  • This line 9 penetrates through the plastics layer of the carton inside surface but stops short of the plastics layer of the carton outside surface.
  • the notches 8 each have rounded sides.
  • Formed centrally in the free edge of the sub-panel 54 is a recess 10, the sides of which are rounded correspondingly to the outer sides of the notches 8 and the base of which is straight and co-linear with the line 9.
  • the carton After the carton has had its bottom closure folded and heat- and pressure-sealed, has been filled with the liquid, and has had its top closure folded and heat- and pressure-sealed, it takes the appearance shown in Figures 3 and 4.
  • the line 9 is at the level of the base of the recess 10 and the curved sides of the recess 10 are aligned with the curved outer sides of the notches 8.
EP19880300628 1987-01-26 1988-01-26 Packaging Expired EP0278625B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8701647 1987-01-26
GB878701647A GB8701647D0 (en) 1987-01-26 1987-01-26 Packaging

Publications (2)

Publication Number Publication Date
EP0278625A1 EP0278625A1 (en) 1988-08-17
EP0278625B1 true EP0278625B1 (en) 1991-04-03

Family

ID=10611216

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880300628 Expired EP0278625B1 (en) 1987-01-26 1988-01-26 Packaging

Country Status (10)

Country Link
EP (1) EP0278625B1 (da)
JP (1) JPH047060Y2 (da)
DE (1) DE8706181U1 (da)
DK (1) DK166447B1 (da)
ES (1) ES2021426B3 (da)
FI (1) FI91232C (da)
GB (1) GB8701647D0 (da)
GR (1) GR3002189T3 (da)
IE (1) IE61484B1 (da)
NO (1) NO177260C (da)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0630664Y2 (ja) * 1989-05-31 1994-08-17 凸版印刷株式会社 紙製液体容器
JP2002255153A (ja) * 2001-02-28 2002-09-11 Toppan Printing Co Ltd 易解体性ゲーブルトップ型紙容器
US7556191B2 (en) * 2004-05-18 2009-07-07 Evergreen Packaging, Inc. Rupturable opening for sealed container

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3039668A (en) * 1960-09-08 1962-06-19 American Can Co Container
NL291926A (da) * 1962-06-12
US3178089A (en) * 1962-10-18 1965-04-13 Int Paper Co Gable top container
DE1761225C3 (de) * 1968-04-20 1978-08-03 Ex-Cell-O Corp., Detroit, Mich. (V.St.A.) Behälter aus einem mit einem heißsiegelfähigen Thermoplast beschichteten Kartonzuschnitt
US3770185A (en) * 1971-02-26 1973-11-06 Foremost Mckesson Beverage container with straw hole

Also Published As

Publication number Publication date
IE61484B1 (en) 1994-11-02
GR3002189T3 (en) 1992-12-30
GB8701647D0 (en) 1987-03-04
DK37488D0 (da) 1988-01-26
IE880177L (en) 1988-07-26
NO177260B (no) 1995-05-08
DE8706181U1 (da) 1987-10-22
JPH047060Y2 (da) 1992-02-26
DK166447B1 (da) 1993-05-24
NO177260C (no) 1995-08-16
FI880336A (fi) 1988-07-27
DK37488A (da) 1988-07-27
FI91232C (fi) 1994-06-10
NO880311L (no) 1988-07-27
JPS63117716U (da) 1988-07-29
ES2021426B3 (es) 1991-11-01
NO880311D0 (no) 1988-01-25
EP0278625A1 (en) 1988-08-17
FI880336A0 (fi) 1988-01-26
FI91232B (fi) 1994-02-28

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