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WO1995018044A1 - Procede permettant de fermer un sachet ou un sac en papier au moyen d'une couture et sachet ou sac ferme suivant ce procede - Google Patents

Procede permettant de fermer un sachet ou un sac en papier au moyen d'une couture et sachet ou sac ferme suivant ce procede Download PDF

Info

Publication number
WO1995018044A1
WO1995018044A1 PCT/SE1994/001261 SE9401261W WO9518044A1 WO 1995018044 A1 WO1995018044 A1 WO 1995018044A1 SE 9401261 W SE9401261 W SE 9401261W WO 9518044 A1 WO9518044 A1 WO 9518044A1
Authority
WO
WIPO (PCT)
Prior art keywords
sack
bag
paper
opening
open end
Prior art date
Application number
PCT/SE1994/001261
Other languages
English (en)
Inventor
Nils-Åke LARSSON
Original Assignee
Korsnäs Ab
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 Korsnäs Ab filed Critical Korsnäs Ab
Priority to AU13955/95A priority Critical patent/AU1395595A/en
Publication of WO1995018044A1 publication Critical patent/WO1995018044A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/02—Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks
    • B65B7/06—Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks by collapsing mouth portion, e.g. to form a single flap
    • B65B7/08—Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks by collapsing mouth portion, e.g. to form a single flap and folding
    • 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
    • B65D33/26—End- or aperture-closing arrangements or devices using staples or stitches

Definitions

  • the present invention relates to a method of sealing a paper sack or bag, specifically to a method of sealing an open end of a sack or bag by bringing the sack or bag material together at the open end and sewing an seam over that.
  • the invention also relates to a paper sack or bag which has at least one of the ends sealed with a seam.
  • Drawbacks relating to the sewn seam are inter alia that if the sack or bag is heavily loaded or otherwise handled incautiously the needle holes are enlarged and the contents may leak out, or the sack or bag may brake due to the fact that the needle holes give rise to the onset of tearing. These drawbacks are especially apparent with regard to sealed sacks or bags which are made of one-ply material.
  • the present invention provides a method of sealing an open end of a bag or sack, which is made of one- or multi-ply material composed of one- or multi-layer paper, plastic-coated paper or paper and plastic, by bringing the sack or bag material together at at least two parts of the open end and sewing a seam over that.
  • the distinguishing feature is that the sack or bag material is folded over itself at the open end for the formation of double material all around the opening before said opening is sewn together.
  • the folding of the sack or bag material is performed by folding the sack or bag material at the open end at two opposite sites followed by bringing the material together between these sites by stretching.
  • the folding and the stretching are performed by machines.
  • the sack or bag material is made of an one-ply paper.
  • the sack or bag material is folded inwards.
  • the invention is also directed to a sack or bag made of one- or multi-ply material which is composed of one- or multi-layer paper, plastic-coated paper or paper and plastic, which sack or bag has at least one of the ends sealed with a seam.
  • the distinguishing features are that the sack or bag material is folded double all around the sack or bag opening and that the seam binds at least two parts of the opening together. In case the sack or bag opening has been sealed in such a way that two parts of the opening have been brought together and sewn together, the seam thus goes through four-fold sack or bag material.
  • the sack or bag is made of an one-ply sack or bag material.
  • the one-ply sack or bag material is a two-layer paper.
  • the thickness of the sack or bag material may possibly be reduced due to the fact that the amount of material no longer needs to be dimensioned with regard to the needle-hole problems.
  • the sealing can be performed according to the invention without the need to even the sack or bag material by cutting or clipping at the opening to be sealed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Making Paper Articles (AREA)
  • Bag Frames (AREA)

Abstract

Un procédé utilisé pour fermer une extrémité ouverte d'un sachet ou d'un sac en papier consiste à rapprocher la matière du sachet ou du sac en son extrémité ouverte, et à coudre un couture sur cette partie. Ce procédé se caractérise par le fait que la matière du sachet ou du sac est repliée sur elle-même en son extrémité ouverte de manière à former une partie double de matière tout autour de l'ouverture avant de coudre cette dernière. Cette invention concerne également un sachet ou un sac en papier dont au moins une des extrémités est fermée par une couture, la matière dudit sachet ou sac étant repliée deux fois tout autour de l'ouverture du sachet ou du sac, la couture attachant ensemble au moins les deux parties de l'ouverture.
PCT/SE1994/001261 1993-12-28 1994-12-28 Procede permettant de fermer un sachet ou un sac en papier au moyen d'une couture et sachet ou sac ferme suivant ce procede WO1995018044A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU13955/95A AU1395595A (en) 1993-12-28 1994-12-28 A method to close a paper sack or bag by sewing, and a bag or sack closed according to said method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9304304A SE9304304D0 (sv) 1993-12-28 1993-12-28 Förslutning av säck eller påse
SE9304304-0 1993-12-28

Publications (1)

Publication Number Publication Date
WO1995018044A1 true WO1995018044A1 (fr) 1995-07-06

Family

ID=20392230

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1994/001261 WO1995018044A1 (fr) 1993-12-28 1994-12-28 Procede permettant de fermer un sachet ou un sac en papier au moyen d'une couture et sachet ou sac ferme suivant ce procede

Country Status (3)

Country Link
AU (1) AU1395595A (fr)
SE (1) SE9304304D0 (fr)
WO (1) WO1995018044A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997046375A1 (fr) * 1994-12-05 1997-12-11 Upm-Kymmene Oy Sac

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE465087C (de) * 1926-09-28 1928-09-08 Union Special Maschinenfab Verfahren zum Verschliessen gefuellter Saecke mit Hilfe einer Verschlussnaht
US2002227A (en) * 1931-12-24 1935-05-21 Mcalister Alexander Bag-sewing apparatus
DE830476C (de) * 1950-10-10 1952-02-04 Bischof & Klein Papierverarbei Verfahren zum Verschliessen gefuellter Saecke aus Papier
FR1011543A (fr) * 1949-02-01 1952-06-24 Boehlen Freres S P R L Procédé et éléments pour la fermeture des sacs et sachets
US2667132A (en) * 1949-12-27 1954-01-26 Milhiser Bag Company Inc Bagmaking method and apparatus
CH488598A (de) * 1969-09-17 1970-04-15 Rothrister Ag Papiersack

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE465087C (de) * 1926-09-28 1928-09-08 Union Special Maschinenfab Verfahren zum Verschliessen gefuellter Saecke mit Hilfe einer Verschlussnaht
US2002227A (en) * 1931-12-24 1935-05-21 Mcalister Alexander Bag-sewing apparatus
FR1011543A (fr) * 1949-02-01 1952-06-24 Boehlen Freres S P R L Procédé et éléments pour la fermeture des sacs et sachets
US2667132A (en) * 1949-12-27 1954-01-26 Milhiser Bag Company Inc Bagmaking method and apparatus
DE830476C (de) * 1950-10-10 1952-02-04 Bischof & Klein Papierverarbei Verfahren zum Verschliessen gefuellter Saecke aus Papier
CH488598A (de) * 1969-09-17 1970-04-15 Rothrister Ag Papiersack

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997046375A1 (fr) * 1994-12-05 1997-12-11 Upm-Kymmene Oy Sac

Also Published As

Publication number Publication date
AU1395595A (en) 1995-07-17
SE9304304D0 (sv) 1993-12-28

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