EP0400481A1 - Sachet d'emballage - Google Patents

Sachet d'emballage Download PDF

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Publication number
EP0400481A1
EP0400481A1 EP90109881A EP90109881A EP0400481A1 EP 0400481 A1 EP0400481 A1 EP 0400481A1 EP 90109881 A EP90109881 A EP 90109881A EP 90109881 A EP90109881 A EP 90109881A EP 0400481 A1 EP0400481 A1 EP 0400481A1
Authority
EP
European Patent Office
Prior art keywords
bag
rectangular
area
edge
sides
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.)
Granted
Application number
EP90109881A
Other languages
German (de)
English (en)
Other versions
EP0400481B1 (fr
Inventor
Michel Courvoisier
Wolfgang Heilmann
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.)
Kraft Jacobs Suchard AG
Original Assignee
Jacobs Suchard AG
Kraft Jacobs Suchard AG
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 Jacobs Suchard AG, Kraft Jacobs Suchard AG filed Critical Jacobs Suchard AG
Publication of EP0400481A1 publication Critical patent/EP0400481A1/fr
Application granted granted Critical
Publication of EP0400481B1 publication Critical patent/EP0400481B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65D75/5816—Opening or contents-removing devices added or incorporated during package manufacture for tearing a corner or other small portion next to the edge, e.g. a U-shaped portion
    • 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
    • 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
    • B65D75/04—Articles or materials wholly enclosed in single sheets or wrapper blanks
    • B65D75/06—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks initially folded to form tubes
    • B65D75/12—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks initially folded to form tubes with the ends of the tube closed by flattening and heat-sealing

Definitions

  • the invention relates to a tear-open pouch for packaging, especially for vacuum packaging, of foods, in particular of coffee.
  • a tubular bag made of air-impermeable elastic material is used for vacuum packaging various products, in particular ground or unground coffee, which is hermetically sealed and folded in such a way that a packaging is produced which essentially has the shape of a parallelepiped.
  • the bag usually consists of an inner wrapper that comes into direct contact with the packaged goods and is enclosed by an outer wrapper that is folded over and folded in such a way that, like the bag that forms the inner wrapper, it is in the form of a parallelepiped.
  • This end area consists of two rectangular surfaces which project upwards from the top of the bag and whose long sides each form the end edges of the opposite front sides of the bag and the folds at the level of the top of the bag, the bag passing through this rectangular area a linear region or a weld seam is closed, which run parallel to the longitudinal sides of the rectangular region and generally substantially at a half distance from these.
  • the weld seam In order to open the bag, the weld seam must be torn open in this rectangular area. Because of the mechanical properties of the material from which the pouch is made, for example a composite of plastic film and aluminum foil, this tear-open can only be carried out with difficulty, and above all in a way that is different for each pouch, so that consumers in In practice, use aids such as scissors to open the bag if the package cannot be easily torn open.
  • the object of the invention is to create a bag which, thanks to particularly simple and economical means, allows the bag to be opened quickly by simply tearing it open, the opening process taking place reliably in the same way for each package, while also opening an opening area which is released serves as a pouring spout.
  • the bag according to the invention is essentially characterized in that it has a continuous cutout in the upper rectangular end region, essentially in the middle thereof, the edge of which extends essentially perpendicular to the long sides of the rectangular region, while its upper end lies between the weld seam and the upper one Longitudinal side of the rectangular area is located, which edge extends substantially at right angles to the lower end in an edge which is substantially parallel to the long sides of the rectangular area between the weld seam and the lower longitudinal edge of the rectangular area.
  • This cutout is preferably triangular, in particular in the form of a right-angled triangle.
  • the cutout can be formed using any suitable method, preferably it is punched out.
  • the bag in the upper rectangular end region has a central, for example rectangular, weld region, which covers the weld seam in the central section, the cutout in this weld region being formed such that the upper end of its edge, which is essentially extends perpendicular to the long sides of the rectangular end region of the bag, projects beyond the upper edge of the central welding region and upwards to the upper long side of the rectangular region.
  • two further lateral welding areas are provided which run from the narrow sides of the rectangular end area between the longitudinally extending weld seam and the lower longitudinal side of the rectangular area.
  • the welded areas are produced with the aid of any conventional method which is suitable for this in view of the type of material used for the bag, for example, heat or ultrasound can be used here occasionally.
  • FIGS. 1 to 3 From Fig. 1, a bag according to the invention can be seen in the completely closed state, which is folded over or crimped in such a way that it forms a body which essentially has the shape of a parallelepiped 1 with a flat top, onto which two triangular tabs 3 are folded will.
  • a rectangular upper end region 4 is formed on the upper section of the bag, which relates Lich the rectangular top 2 of the bag extends transversely between the tip regions of the triangular tabs 3.
  • the longitudinal side 5 of the rectangular area which forms the upper edge of this area, is thus formed in that the end edges of the opposite sides of the bag are placed side by side in the upper section thereof.
  • the lower longitudinal side 6 is formed by folding the ends of the opposite bag sides relative to the bag sections that form the top 2 and the tabs 3.
  • the bag is closed in the area 4 in a conventional manner with the aid of a weld seam 7, which extends over its entire length essentially half the distance from the upper (5) and lower (6) long sides.
  • This weld seam which is created, for example, by the action of heat, hermetically seals the bag.
  • a cutout 8 is provided which is triangular in the exemplary embodiment shown, this cutout having an edge 9 running perpendicular to the sides 5 and 6, which continues in an edge which is arranged parallel to these longitudinal sides 5 and 6 , wherein the two edges 9 and 10 are connected to each other by an edge which runs obliquely so that a cutout in the form of a right-angled triangle is formed.
  • This cutout runs through the two walls that form the rectangular end region 4, for example by it is punched in using an appropriately shaped tool.
  • This cutout 8 is formed in a welding area 11, which is rectangular in the exemplary embodiment shown, the upper end of the edge 9 of the cutout 8 projecting upward from the upper edge of the welding area 11.
  • This welding area 11 is essentially formed in the central section of area 4. In the illustrated embodiment, this area is slightly offset to the left from the center of area 4.
  • the central welding area 11 is arranged on both sides and covers the weld seam 7, while the zones 12 and 13 are arranged between the weld seam 7 and the lower longitudinal side 6 of the rectangular area 4.
  • the tabs 3 are turned over from the position shown in FIG. 1 so that they are in the position shown in FIG. 2.
  • a gap 14 is formed in the upper section of the bag, which forms an opening after the end edges of the bag have been raised while forming a filling nozzle.
  • cutout 8 for opening the bag defines predetermined breaking lines in such a way that a simple, reliable and constant opening is possible with all bags.
  • FIG 7 and 8 illustrate two phases in the manufacture of the upper end portion of the bag according to the invention.
  • the cutout 8 is punched out, as shown in FIG. 8, whereupon a vacuum is created in order to create a vacuum in the interior of the bag, and finally the bag is closed completely tightly by placing a weld seam along line 7.
  • the pouch shown in the drawing can of course be used in the form thus formed, but it preferably forms an inner wrapper which is within an Au Outer wrapping is located, so that a double-walled package is created, for example for vacuum packing of ground or unground coffee.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Bag Frames (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
EP90109881A 1989-05-29 1990-05-23 Sachet d'emballage Expired - Lifetime EP0400481B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8907006A FR2648442B1 (fr) 1989-05-29 1989-05-29 Sachet a ouverture rapide de conditionnement, notamment de conditionnement sous vide, de produits alimentaires en particulier de cafe
FR8907006 1989-05-29

Publications (2)

Publication Number Publication Date
EP0400481A1 true EP0400481A1 (fr) 1990-12-05
EP0400481B1 EP0400481B1 (fr) 1994-09-14

Family

ID=9382094

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90109881A Expired - Lifetime EP0400481B1 (fr) 1989-05-29 1990-05-23 Sachet d'emballage

Country Status (7)

Country Link
EP (1) EP0400481B1 (fr)
AT (1) ATE111414T1 (fr)
CA (1) CA2017668A1 (fr)
DE (1) DE59007101D1 (fr)
DK (1) DK0400481T3 (fr)
ES (1) ES2060863T3 (fr)
FR (1) FR2648442B1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE959716C (de) * 1955-04-01 1957-03-07 Agfa Ag Fuer Photofabrikation Aufreisspackung
DE1486176A1 (de) * 1963-01-16 1969-01-23 Tetra Pak Ab Packung aus bitgmmem und verhaeltnismaessig steifem Verpackungsmaterial
US4176567A (en) * 1977-03-18 1979-12-04 Warren Weisberg Method of making a tear line-forming perforation in a sealed marginal portion of a bag and a sealed bag formed thereby

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE959716C (de) * 1955-04-01 1957-03-07 Agfa Ag Fuer Photofabrikation Aufreisspackung
DE1486176A1 (de) * 1963-01-16 1969-01-23 Tetra Pak Ab Packung aus bitgmmem und verhaeltnismaessig steifem Verpackungsmaterial
US4176567A (en) * 1977-03-18 1979-12-04 Warren Weisberg Method of making a tear line-forming perforation in a sealed marginal portion of a bag and a sealed bag formed thereby

Also Published As

Publication number Publication date
CA2017668A1 (fr) 1990-11-29
ATE111414T1 (de) 1994-09-15
DE59007101D1 (de) 1994-10-20
EP0400481B1 (fr) 1994-09-14
FR2648442B1 (fr) 1991-09-20
DK0400481T3 (da) 1995-02-13
FR2648442A1 (fr) 1990-12-21
ES2060863T3 (es) 1994-12-01

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