EP0908392A1 - bag with self-adhesive closure - Google Patents
bag with self-adhesive closure Download PDFInfo
- Publication number
- EP0908392A1 EP0908392A1 EP98402439A EP98402439A EP0908392A1 EP 0908392 A1 EP0908392 A1 EP 0908392A1 EP 98402439 A EP98402439 A EP 98402439A EP 98402439 A EP98402439 A EP 98402439A EP 0908392 A1 EP0908392 A1 EP 0908392A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bag according
- opening
- film
- width
- bag
- 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
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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
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/1691—End- or aperture-closing arrangements or devices using adhesive applied to attached closure elements
Definitions
- the present invention relates to the field of sachets packaging closed by self-adhesive tape.
- sachets include either a self-adhesive strip double-sided glued on a closing flap so that one of the faces of said strip remains accessible, or (as illustrated in FIG. 1) a strip single-sided self-adhesive 1 glued to a flap 2 provided with at least one opening 3, so that the self-adhesive side of this strip 1 is accessible at said opening 3.
- all these sachets known include a removable cover flap 4 deposited on the face accessible sticker of the aforementioned strip 1, to prevent this strip 1 does not adhere inadvertently to an adjacent surface, for example when several such bags are stacked.
- the present invention now aims to provide new closing means for such bags with elements of sticker closure.
- a bag comprising a self-adhesive closure element, characterized by causes this element to be placed opposite at least one opening formed in the film making up the wall of the bag, without a cover flap, said opening with a small dimension, between two of its edges in look, between 6 and 40 times the thickness of the film.
- the present invention makes it possible to avoid the presence of a shutter of cover, thanks to a reduced ratio (from 6 to 40) between the width of the opening formed in the film and thickness thereof.
- the known sachets of the state of the art include a much higher ratio between the width of the opening formed in the film and the thickness thereof. According to the state of the art, this ratio is greater than 50.
- a bag 10 comprising two main walls 12, 14 connected between them on three of their sides and thus defining a mouth 16 at level of the fourth side of these walls 12, 14.
- This mouth 16 can be closed by a flap 18 extending one of the walls 12 and provided with a self-adhesive element 20 placed opposite at least one opening 19 formed in the flap 18.
- the self-adhesive face 22 of the element 20 is placed against the flap 18.
- this self-adhesive face 22 is accessible through the opening 19. It suffices to turn the flap 18 against the opposite wall 14, so that this self-adhesive face 22 accessible through the opening 19 come to rest on this wall 14, to close the bag.
- the opening 19 has a relationship between its smallest width "L” and the thickness "e" of the film component walls 12 and 14, between 6 and 40, advantageously between 6 and 25, very preferably between 8 and 20.
- the film making up the walls 12 and 14 can be the subject of numerous embodiments. It is preferably formed from a film of material plastic, advantageously made of polyolefin, especially polypropylene or in high density polyethylene. However, the film can be formed from any other equivalent composition, in particular plastic.
- the film can also be multilayer plastic, or even for example plastic / paper or plastic / metal sheet.
- the film typically has a thickness between 100 and 150 ⁇ m.
- the small width of the abovementioned opening 19 is typically between 0.6mm and 6mm, advantageously between 0.6mm and 3.75mm, very preferably between 0.8mm and 3mm.
- the aforementioned opening 19 may be formed by a rectilinear lumen continuous formed between two separate sections of the flap.
- the most small width "above is equal to the width of this light.
- the ratio between the width of the light 19 and the thickness of the film is preferably between 6 and 25, very preferably between 8 and 20.
- the width of the light is advantageously between 0.6mm and 3.75mm and preferably between 0.8mm and 3mm.
- the opening 19 can also be formed from a cutout closed contour, for example of circular, polygonal or other contour.
- the smallest width is equal to the smallest dimension of the cutting, i.e. for example the diameter for a circular cutting, or the dimension of one side for a square contour cut.
- the flap 18 preferably has several such openings.
- the ratio between the width of the lumen 19 and the thickness of the film is preferably between 8 and 40.
- the width of the closed edge cut is thus advantageously understood between 0.8mm and 6mm.
- the present invention makes it possible to stack adjacent sachets, without require the presence of cover flaps on the accessible side of the self-adhesive element 20, and while authorizing on the other hand a closure reliable of the bag by deformation of the self-adhesive strip 20 through the opening 19. If necessary, this deformation of the self-adhesive strip 20 can be obtained with a tool, such as a scroll.
Abstract
Description
La présente invention concerne le domaine des sachets d'emballage à fermeture par bande autocollante.The present invention relates to the field of sachets packaging closed by self-adhesive tape.
De nombreux sachets de ce type ont déjà été proposés.Many sachets of this type have already been proposed.
Ces sachets connus comprennent soit une bande autocollante
double face collée sur un rabat de fermeture de sorte que l'une des faces de
ladite bande reste accessible, soit (comme illustré sur la figure 1) une bande
autocollante simple face 1 collée sur un rabat 2 muni d'au moins une
ouverture 3, de sorte que la face autocollante de cette bande 1 soit
accessible au niveau de ladite ouverture 3. Par ailleurs tous ces sachets
connus comprennent un volet de couverture amovible 4 déposé sur la face
autocollante accessible de la bande 1 précitée, pour éviter que cette bande
1 n'adhère de façon intempestive sur une surface adjacente, par exemple
lorsque plusieurs de tels sachets sont empilés.These known sachets include either a self-adhesive strip
double-sided glued on a closing flap so that one of the faces of
said strip remains accessible, or (as illustrated in FIG. 1) a strip
single-sided self-adhesive 1 glued to a
Ces sachets ont certes rendu de grands services.These sachets have certainly rendered great services.
Cependant ils ne donnent pas totalement satisfaction.However, they are not entirely satisfactory.
En particulier l'utilisation de tels sachets sur des machines
d'emballage automatiques, est assez difficile à réaliser, et dans tous les cas
fort complexe, en raison de la présence du volet de couverture 4 qu'il est
nécessaire de retirer au préalable, c'est-à-dire avant de refermer le sachet.In particular the use of such sachets on machines
packaging is quite difficult, and in any case
very complex, due to the presence of the
La présente invention a maintenant pour but de proposer de nouveaux moyens de fermeture pour de tels sachets à éléments de fermeture autocollants.The present invention now aims to provide new closing means for such bags with elements of sticker closure.
Ce but est atteint dans le cadre de la présente invention grâce à un sachet comprenant un élément de fermeture autocollant, caractérisé par le fait que cet élément est placé en regard d'au moins une ouverture formée dans le film composant la paroi du sachet, sans volet de couverture, ladite ouverture possédant une petite dimension, entre deux de ses bords en regard, comprise entre 6 et 40 fois l'épaisseur du film.This object is achieved in the context of the present invention thanks to a bag comprising a self-adhesive closure element, characterized by causes this element to be placed opposite at least one opening formed in the film making up the wall of the bag, without a cover flap, said opening with a small dimension, between two of its edges in look, between 6 and 40 times the thickness of the film.
Ainsi la présente invention permet d'éviter la présence d'un volet de couverture, grâce à un rapport réduit (de 6 à 40) entre largeur de l'ouverture ménagée dans le film et épaisseur de celui-ci.Thus the present invention makes it possible to avoid the presence of a shutter of cover, thanks to a reduced ratio (from 6 to 40) between the width of the opening formed in the film and thickness thereof.
Par comparaison les sachets connus de l'état de la technique comprennent un rapport bien supérieur entre la largeur de l'ouverture ménagée dans le film et l'épaisseur de celui-ci. Selon l'état de la technique, ce rapport est supérieur à 50.By comparison the known sachets of the state of the art include a much higher ratio between the width of the opening formed in the film and the thickness thereof. According to the state of the art, this ratio is greater than 50.
D'autres caractéristiques, buts et avantages de la présente invention apparaitront à la lecture de la description détaillée qui va suivre et en regard des dessins annexés, donnés à titre d'exemple non limitatif et sur lesquels :
- la figure 1 précédemment décrite représente un sachet conforme à l'état de la technique,
- la figure 2 représente une vue schématique latérale d'un sachet conforme à la présente invention, et
- la figure 3 représente une vue partielle agrandie de ce sachet.
- FIG. 1 previously described represents a sachet in accordance with the state of the art,
- FIG. 2 represents a schematic side view of a bag in accordance with the present invention, and
- Figure 3 shows an enlarged partial view of this bag.
On aperçoit sur la figure 2 annexée un sachet 10 conforme à la
présente invention comprenant deux parois principales 12, 14 reliées entre
elles sur trois de leurs côtés et définissant ainsi une embouchure 16 au
niveau du quatrième côté de ces parois 12, 14. Cette embouchure 16 peut
être obturée par un rabat 18 prolongeant l'une des parois 12 et muni d'un
élément autocollant 20 placé en regard d'au moins une ouverture 19 formée
dans le rabat 18. La face autocollante 22 de l'élément 20 est placée contre
le rabat 18. Ainsi cette face autocollante 22 est accessible à travers
l'ouverture 19. Il suffit de retourner le rabat 18 contre la paroi 14 opposée,
de sorte que cette face autocollante 22 accessible à travers l'ouverture 19
vienne reposer sur cette paroi 14, pour fermer le sachet.We can see in Figure 2 attached a
Plus précisément encore selon la présente invention, l'ouverture 19
possède un rapport entre sa plus petite largeur "L" et l'épaisseur "e" du film
composant les parois 12 et 14, compris entre 6 et 40, avantageusement
entre 6 et 25, très préférentiellement entre 8 et 20.More precisely still according to the present invention, the opening 19
has a relationship between its smallest width "L" and the thickness "e" of the
Dans le cadre de la présente invention, on entend par "plus petite largeur" de l'ouverture 19, la plus petite distance rectiligne entre deux bords de cette ouverture, passant par tout point quelconque de l'ouverture.In the context of the present invention, the term "smaller width "of opening 19, the smallest straight distance between two edges of this opening, passing through any point of the opening.
Le film composant les parois 12 et 14 peut faire l'objet de nombreux
modes de réalisation. Il est formé de préférence d'un film en matière
plastique, avantageusement en polyoléfine, notamment en polypropylène
ou en polyéthylène haute densité. Cependant le film peut être formé de
toute autre composition équivalente, notamment en matière plastique. Le
film peut aussi être multicouche en plastique, voire par exemple
plastique/papier ou plastique/feuille de métal. Le film posséde typiquement
une épaisseur comprise entre 100 et 150µm.The film making up the
Ainsi la petite largeur de l'ouverture 19 précitée est typiquement
comprise entre 0,6mm et 6mm, avantageusement entre 0,6mm et 3,75mm,
très préférentiellement entre 0,8mm et 3mm.Thus the small width of the
L'ouverture 19 précitée peut être formée d'une lumière rectiligne
continue formée entre deux tronçons séparés du rabat. Dans ce cas "la plus
petite largeur" précitée est égale à la largeur de cette lumière. Et dans ce
cas, le rapport entre la largeur de la lumière 19 et l'épaisseur du film est de
préférence comprise entre 6 et 25, très préférentiellement entre 8 et 20.
Ainsi la largeur de la lumière est avantageusement comprise entre 0,6mm
et 3,75mm et préférentiellement entre 0,8mm et 3mm.The
L'ouverture 19 peut également être formée d'une découpe à
contour fermé, par exemple de contour circulaire, polygonal ou autre. Dans
ce cas "la plus petite largeur" est égale à la plus petite dimension de la
découpe, c'est à dire par exemple le diamètre pour une découpe circulaire,
ou la dimension d'un côté pour une découpe de contour carrée. Dans le cas
d'une ouverture à contour fermé, le rabat 18 possède de préférence
plusieurs de telles ouvertures. Et dans ce cas, le rapport entre la largeur de
la lumière 19 et l'épaisseur du film est de préférence comprise entre 8 et 40.
Ainsi la largeur de la découpe à bord fermé est avantageusement comprise
entre 0,8mm et 6mm.The opening 19 can also be formed from a cutout
closed contour, for example of circular, polygonal or other contour. In
this case "the smallest width" is equal to the smallest dimension of the
cutting, i.e. for example the diameter for a circular cutting,
or the dimension of one side for a square contour cut. In the case
of an opening with a closed contour, the
La présente invention permet d'empiler des sachets adjacents, sans
nécessiter la présence de volets de couverture sur la face accessible de
l'élément autocollant 20, et tout en autorisant d'autre part une fermeture
fiable du sachet par déformation de la bande autocollante 20 à travers
l'ouverture 19. Le cas échéant, cette déformation de bande autocollante 20
peut être obtenue avec un outil, tel qu'une mollette.The present invention makes it possible to stack adjacent sachets, without
require the presence of cover flaps on the accessible side of
the self-
Bien entendu la présente invention n'est pas limitée au mode de réalisation qui vient d'être décrit, mais s'étend à toutes variantes conformes à son esprit.Of course, the present invention is not limited to the mode of realization which has just been described, but extends to all conforming variants to his mind.
Claims (14)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9712470A FR2769295B1 (en) | 1997-10-07 | 1997-10-07 | SELF-ADHESIVE CLOSING BAG |
FR9712470 | 1997-10-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0908392A1 true EP0908392A1 (en) | 1999-04-14 |
EP0908392B1 EP0908392B1 (en) | 2005-05-04 |
Family
ID=9511903
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19980402439 Expired - Lifetime EP0908392B1 (en) | 1997-10-07 | 1998-10-05 | bag with self-adhesive closure |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0908392B1 (en) |
DE (1) | DE69830032T2 (en) |
FR (1) | FR2769295B1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6438926B1 (en) | 1997-11-07 | 2002-08-27 | Pliant Corporation | Method and apparatus for placing a product in a flexible recloseable container |
US7163133B2 (en) | 2004-03-05 | 2007-01-16 | S.C. Johnson Home Storage, Inc. | Apparatus for and method of moving a slider along mating zipper elements |
US7244222B2 (en) | 2004-03-05 | 2007-07-17 | S.C. Johnson Home Storage, Inc. | Apparatus for and method of positioning a slider on mating zipper elements |
US8127517B2 (en) | 1997-11-07 | 2012-03-06 | Illinois Tool Works Inc. | Method and apparatus for placing a product in a flexible recloseable container |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3079066A (en) * | 1960-12-21 | 1963-02-26 | Continental Can Co | Temporary sealing means for bags |
US5026174A (en) * | 1988-03-01 | 1991-06-25 | Ultra Creative Corporation | Plastic film bag with special flap arrangement |
DE9105634U1 (en) * | 1991-05-07 | 1991-06-27 | Richard Haag + Sohn Gmbh + Co, 7312 Kirchheim, De |
-
1997
- 1997-10-07 FR FR9712470A patent/FR2769295B1/en not_active Expired - Fee Related
-
1998
- 1998-10-05 EP EP19980402439 patent/EP0908392B1/en not_active Expired - Lifetime
- 1998-10-05 DE DE69830032T patent/DE69830032T2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3079066A (en) * | 1960-12-21 | 1963-02-26 | Continental Can Co | Temporary sealing means for bags |
US5026174A (en) * | 1988-03-01 | 1991-06-25 | Ultra Creative Corporation | Plastic film bag with special flap arrangement |
DE9105634U1 (en) * | 1991-05-07 | 1991-06-27 | Richard Haag + Sohn Gmbh + Co, 7312 Kirchheim, De |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6438926B1 (en) | 1997-11-07 | 2002-08-27 | Pliant Corporation | Method and apparatus for placing a product in a flexible recloseable container |
US6925779B2 (en) | 1997-11-07 | 2005-08-09 | Illinois Tool Works Inc. | Method and apparatus for placing a product in a flexible recloseable container |
US8127517B2 (en) | 1997-11-07 | 2012-03-06 | Illinois Tool Works Inc. | Method and apparatus for placing a product in a flexible recloseable container |
US7163133B2 (en) | 2004-03-05 | 2007-01-16 | S.C. Johnson Home Storage, Inc. | Apparatus for and method of moving a slider along mating zipper elements |
US7244222B2 (en) | 2004-03-05 | 2007-07-17 | S.C. Johnson Home Storage, Inc. | Apparatus for and method of positioning a slider on mating zipper elements |
Also Published As
Publication number | Publication date |
---|---|
EP0908392B1 (en) | 2005-05-04 |
DE69830032D1 (en) | 2005-06-09 |
FR2769295B1 (en) | 1999-12-24 |
DE69830032T2 (en) | 2006-03-02 |
FR2769295A1 (en) | 1999-04-09 |
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