EP0608451A1 - Sac repliable - Google Patents

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Publication number
EP0608451A1
EP0608451A1 EP93101178A EP93101178A EP0608451A1 EP 0608451 A1 EP0608451 A1 EP 0608451A1 EP 93101178 A EP93101178 A EP 93101178A EP 93101178 A EP93101178 A EP 93101178A EP 0608451 A1 EP0608451 A1 EP 0608451A1
Authority
EP
European Patent Office
Prior art keywords
seam
folding bag
bag according
piece
folding
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.)
Ceased
Application number
EP93101178A
Other languages
German (de)
English (en)
Inventor
Roland Kuhn
Manfred Kleine
Matthieas Dr. Dipl.-Phys Kaufmann
Walter Dr. Baur
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.)
Rovema Verpackungsmaschinen GmbH and Co KG
Rovema GmbH
Original Assignee
Rovema Verpackungsmaschinen GmbH and Co KG
Rovema GmbH
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 Rovema Verpackungsmaschinen GmbH and Co KG, Rovema GmbH filed Critical Rovema Verpackungsmaschinen GmbH and Co KG
Priority to EP93101178A priority Critical patent/EP0608451A1/fr
Publication of EP0608451A1 publication Critical patent/EP0608451A1/fr
Ceased 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
    • 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
    • B65D75/5861—Spouts
    • B65D75/5866—Integral spouts

Definitions

  • the invention relates to a folding bag for storing a liquid or a bulk material, which can be produced on a tubular bag machine with a sealing longitudinal sealing seam to form a piece of tubing, a sealing lower transverse sealing seam to form a base piece and a sealing upper transverse sealing seam to close a lid piece after filling the folding bag .
  • Folding bags of this type have long been used for the packaged packaging of milk or milk products, fruit juices, bulk goods or the like. This has given consumers the habit of not completely emptying a folding bag after it has been opened, but of leaving a remainder of the packaging in it for later use. It is therefore desirable that such a folding bag be resealable.
  • Such a folding bag is known from EP patent application 0 239 319 A2, the cover piece of which is provided with two continuous, parallel sealing seams.
  • an inner closure seam adjoining the packaged goods is designed as a peel seam
  • an outer closure seam is designed as a resealable seal, but not cohesively connected seam is executed.
  • Such a folding bag has the disadvantage that it is difficult for the user to produce a defined pouring spout. If the peel seam is opened too wide, difficulties may arise when the outer closure seam is reclosed.
  • a folding bag is known from DE laid-open specification 38 24 753 A1, in which in addition to the all-sealing transverse sealing seam, one of these neighboring sealing seams is provided in the lid piece, which is only part of the lid piece detected, while the rest is formed by a reclosure which gives a pouring spout when it is open.
  • the handling of such a reclosure is cumbersome, especially if the folding bag is made of relatively soft material.
  • the invention is therefore based on the object of executing a folding bag of the type described in the introduction in such a way that it is absolutely tightly closed after the packaging material has been filled in, but that nevertheless a pouring spout can be produced without difficulty and the folding bag is not resealable when a Part of the packaging is removed.
  • the object is achieved in that at least one closure seam is provided in the lid piece, which is adjacent to the transverse sealing seam located there and arranged in the area of the folding bag sealed by this transverse sealing seam and which seals the lid piece in a first partial area, the folding bag on the Side of the cover piece has an inward-facing longitudinal fold and this longitudinal fold is arranged in a partial area or extends into it, which is not covered by the closure seam.
  • the invention can be used particularly advantageously if the folding bag is designed as a parallelepiped, in which the transverse sealing seams are arranged parallel to two opposite main side surfaces of the folding bag.
  • a folding bag in which the end pieces of two secondary side faces perpendicular to the main side faces in the area of the cover piece can be folded inwards by longitudinal folding, in which the base piece and / or the cover piece can also be folded parallel to the respective transverse sealing seam in such a way that each have a relatively flat bottom or cover surface and the bottom piece can be designed, for example, as a block bottom, can be implemented particularly advantageously by providing the closure seam parallel to the adjacent transverse sealing seam.
  • the pouring spout can be formed in a simple manner in that one of the folded end pieces of the secondary side faces is not covered by the closure seam. Rather, it is simply folded back and forms a sharp-edged pouring spout in this form. After use, the end piece is folded back into its original position, so that when the cover piece is bent with the closing seam, the pouring spout is at least provisionally closed and the contents of the folding bag are sealed against the environment to such an extent that it is stored in a refrigerator, for example can be kept standing for a long time without affecting the packaged goods.
  • the transverse sealing seam can be produced as a peel seam or as a reclosable seam, in the latter case the closure seam of one in a surface of the Cover piece located, molded sealing strip and a complementary to this sealing groove, formed in another surface of the cover piece, is formed.
  • the closure seam is produced by heat sealing, because in this way both the transverse sealing seam and the closure seam can be produced in one operation in a cross-sealing tool.
  • the longitudinal sealing seam is arranged so that it is not crossed by the closing seam, because otherwise the tightness of the closing seam may be impaired.
  • an adhesive fold or the like is provided, by means of which the cover piece can be locked on the rest of the folding bag in such a way that a second partial area of the cover piece which is not covered by the sealing seam is not sealed by its fold.
  • the adhesive fold can be provided transversely or parallel to the closure seam or in connection with a label or the like. The adhesive fold thus serves to ensure that the folding bag that is not opened can already be provided on its cover piece with a relatively flat cover surface, which is also obtained again after reclosing.
  • the folding bag is designed as a block bottom bag with a block bottom and in the form of a parallelepiped.
  • the tube piece 1 is formed in a known manner from a flat piece and produced with the aid of a longitudinal sealing seam, which is omitted in the drawing because it is customary in the case of such folding bags and has no connection with the actual invention.
  • a transverse sealing seam 21 can be seen, which is bent according to the design of the bottom piece as a block bottom.
  • the cover piece is sealed with a corresponding transverse sealing seam 31 when the folding bag is filled.
  • the upper end pieces 121 of the secondary side faces 12 are folded inwards so that when the cover piece 3 is bent through a right angle around the edge 32, a relatively flat surface is formed, just as on the bottom piece 2.
  • An adhesive fold 4 locks the cover piece 3 in this position.
  • the moment in which the folding bag is opened is recorded in FIG. 1.
  • the cover piece was detached from the fold 4 and, as illustrated by a directional arrow 51, the entire transverse sealing seam 31 was removed from the cover piece 3.
  • a closure seam 33 runs parallel to the transverse sealing seam 31 in a (FIG. 2) partial area T1 of the cover piece 3.
  • the closure seam 33 is formed here by heat sealing the two surfaces of the cover part 3 lying against one another. Therefore, it cannot be solved.
  • a second sub-area T2, however (Fig. 1) is not covered by the closure seam. It is chosen so large that the end piece 121 can be folded out according to FIG. 2 and thus a pouring spout 6 arises. However, the end piece 121 can be turned again in the direction of the inside of the bag, so that, even if the cover piece 3 is bent in the manner illustrated by a directional arrow 52 (FIG.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
EP93101178A 1993-01-27 1993-01-27 Sac repliable Ceased EP0608451A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP93101178A EP0608451A1 (fr) 1993-01-27 1993-01-27 Sac repliable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93101178A EP0608451A1 (fr) 1993-01-27 1993-01-27 Sac repliable

Publications (1)

Publication Number Publication Date
EP0608451A1 true EP0608451A1 (fr) 1994-08-03

Family

ID=8212558

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93101178A Ceased EP0608451A1 (fr) 1993-01-27 1993-01-27 Sac repliable

Country Status (1)

Country Link
EP (1) EP0608451A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2113467A1 (fr) * 2008-05-03 2009-11-04 Nordenia Deutschland Halle GmbH Emballage de feuille, notamment pour produits en vrac
FR2951440A1 (fr) * 2009-10-16 2011-04-22 Veriplast Flexible Sac d'emballage en matiere plastique

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2541674A (en) * 1947-01-24 1951-02-13 Wingfoot Corp Bag structure, and particularly the closure therefor
EP0357481A1 (fr) * 1988-08-19 1990-03-07 Compagnie Gervais-Danone Procédé et machine de fabrication de sachets ou paquets d'emballage en film mince
EP0451069A1 (fr) * 1990-04-05 1991-10-09 Claude Richard Sachet en matière thermoscellable pour produits en vrac et dispositif pour assurer sa fermeture répétée

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2541674A (en) * 1947-01-24 1951-02-13 Wingfoot Corp Bag structure, and particularly the closure therefor
EP0357481A1 (fr) * 1988-08-19 1990-03-07 Compagnie Gervais-Danone Procédé et machine de fabrication de sachets ou paquets d'emballage en film mince
EP0451069A1 (fr) * 1990-04-05 1991-10-09 Claude Richard Sachet en matière thermoscellable pour produits en vrac et dispositif pour assurer sa fermeture répétée

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2113467A1 (fr) * 2008-05-03 2009-11-04 Nordenia Deutschland Halle GmbH Emballage de feuille, notamment pour produits en vrac
FR2951440A1 (fr) * 2009-10-16 2011-04-22 Veriplast Flexible Sac d'emballage en matiere plastique

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Inventor name: BAUR, WALTER, DR.

Inventor name: KAUFMANN, MATTHIEAS, DR. DIPL.-PHYS

Inventor name: KLEINE, MANFRED

Inventor name: KUHN, ROLAND

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