EP0099563A3 - Plastic bag for pulverulent or granular material, and method of manufacturing and closing such a bag - Google Patents

Plastic bag for pulverulent or granular material, and method of manufacturing and closing such a bag Download PDF

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Publication number
EP0099563A3
EP0099563A3 EP83106989A EP83106989A EP0099563A3 EP 0099563 A3 EP0099563 A3 EP 0099563A3 EP 83106989 A EP83106989 A EP 83106989A EP 83106989 A EP83106989 A EP 83106989A EP 0099563 A3 EP0099563 A3 EP 0099563A3
Authority
EP
European Patent Office
Prior art keywords
front wall
slot
welded
wall
filling
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Withdrawn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
EP83106989A
Other languages
German (de)
French (fr)
Other versions
EP0099563A2 (en
Inventor
Hans Lissner
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0099563A2 publication Critical patent/EP0099563A2/en
Publication of EP0099563A3 publication Critical patent/EP0099563A3/en
Withdrawn legal-status Critical Current

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
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/14—Valve bags, i.e. with valves for filling
    • 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
    • B65D33/02—Local reinforcements or stiffening inserts, e.g. wires, strings, strips or frames

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)

Abstract

Die Erfindung betrifft einen Sack für körniges oder pulveriges Schüttgut aus einem an beiden Enden mit einer Querschweißnaht geschlossenen Kunststoff-Folienschlauch mit einem als Füllöffnung dienenden Schlitz in der Vorder­ wand in der Nähe einer Querschweißnaht. Der Sack wird durch Aufschweißen eines Deckblattes aus Folie über den Schlitz verschlossen. Um ein Aufreißen des Schlitzes beim Füllen über einen Füllstutzen zu vermeiden und um eine einwandfreie Verschweißung zu erhalten, ohne die Rück­ wand zu beeinträchtigen, wird vor dem Füllen des Sackes an der Vorderwand ein als Wärmesperre und Verstärkung dienender geschlitzter Streifen aufgeschweißt, dessen Schlitz deckungsgleich mit dem Schlitz in der Vorderwand ist. Beim anschließenden Aufschweißen des Deckblattes zwischen Deckblatt, Vorderwand und Rückwand einklem­ menden Schweißbacken verhindert diese Wärmesperre, daß die Rückwand mit der Vorderwand verschweißt oder durch Verdrängen von aufgeweichtem Folienmaterial geschwächt wird. Außerdem wird durch den aufgeschweißten Streifen die im Bereich des Schlitzes stark beanspruchte Vorderwand versteift und verstärkt, was sich sowohl für die Reinigung als auch die Handhabung beim Öffnen, Füllen und Verschließen vorteilhaft auswirkt. The invention relates to a sack for granular or powdery bulk material from one at both ends with one Cross weld seam closed plastic film tube with a slot in the front serving as a filling opening wall near a cross weld. The sack will by welding a cover sheet made of foil over the Slit closed. To open the slit at Avoid filling over a filler neck and around a to get flawless welding without the back affect the wall, before filling the bag the front wall as a heat barrier and reinforcement serving slit strip welded, its The slot is congruent with the slot in the front wall is. When the cover sheet is then welded on clamp between cover sheet, front wall and rear wall Sending welding jaws prevents this heat barrier the rear wall welded to or through the front wall Displacement of softened film material weakened becomes. In addition, the strip is welded on the front wall heavily used in the area of the slot stiffened and reinforced, which is suitable for both cleaning and also handling when opening, filling and closing has an advantageous effect.

EP83106989A 1982-07-16 1983-07-16 Plastic bag for pulverulent or granular material, and method of manufacturing and closing such a bag Withdrawn EP0099563A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3226739 1982-07-16
DE3226739 1982-07-16
DE3229532 1982-08-07
DE3229532 1982-08-07

Publications (2)

Publication Number Publication Date
EP0099563A2 EP0099563A2 (en) 1984-02-01
EP0099563A3 true EP0099563A3 (en) 1985-03-06

Family

ID=25803107

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83106989A Withdrawn EP0099563A3 (en) 1982-07-16 1983-07-16 Plastic bag for pulverulent or granular material, and method of manufacturing and closing such a bag

Country Status (1)

Country Link
EP (1) EP0099563A3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107176372A (en) * 2017-04-13 2017-09-19 李欣 The dual-purpose washing powder container of bottle bag

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1958597A (en) * 1931-09-12 1934-05-15 Arkell Safety Bag Co Multi-ply bag and method of producing the same
FR2357423A1 (en) * 1976-07-08 1978-02-03 Windmoeller & Hoelscher Method for filling and closing sacks - in which closed sacks are filled through slot in wall which is closed after filling

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1958597A (en) * 1931-09-12 1934-05-15 Arkell Safety Bag Co Multi-ply bag and method of producing the same
FR2357423A1 (en) * 1976-07-08 1978-02-03 Windmoeller & Hoelscher Method for filling and closing sacks - in which closed sacks are filled through slot in wall which is closed after filling

Also Published As

Publication number Publication date
EP0099563A2 (en) 1984-02-01

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): DE FR GB NL SE

XX Miscellaneous (additional remarks)

Free format text: EIN BERICHTIGUNGSANTRAG NACH REGEL 88 (EPU) AUF HINZUFUEGUNG EINER DRITTEN PRIORITAET, 13.07.83 DE 3325217.3, IST AM 16.09.83 EINGEGANGEN.

PUAL Search report despatched

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AK Designated contracting states

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STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19851107