EP1066200A1 - Bag with self-closure - Google Patents

Bag with self-closure

Info

Publication number
EP1066200A1
EP1066200A1 EP99911862A EP99911862A EP1066200A1 EP 1066200 A1 EP1066200 A1 EP 1066200A1 EP 99911862 A EP99911862 A EP 99911862A EP 99911862 A EP99911862 A EP 99911862A EP 1066200 A1 EP1066200 A1 EP 1066200A1
Authority
EP
European Patent Office
Prior art keywords
bag
folding
fold
envelope
closure
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
EP99911862A
Other languages
German (de)
French (fr)
Other versions
EP1066200B1 (en
Inventor
Jean-Yves Porret
Claude Imbert
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.)
Becton Dickinson France SA
Original Assignee
Becton Dickinson France SA
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 Becton Dickinson France SA filed Critical Becton Dickinson France SA
Publication of EP1066200A1 publication Critical patent/EP1066200A1/en
Application granted granted Critical
Publication of EP1066200B1 publication Critical patent/EP1066200B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/14—Container closures formed after filling by flattening and subsequently folding or rolling the mouth 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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices

Definitions

  • the present invention relates to a bag for packaging or packaging a load of one or more products, capable for example of flowing by gravity, whether it is a particulate solid product, for example a powder, or whether it is a single object or multiple objects in bulk.
  • the invention relates to bags generally comprising an envelope closed on one side by a bottom, and delimiting on the other side a mouth allowing when it is open the passage or crossing of the load, s 'flowing for example by gravity in the inverted position of said bag.
  • the envelope is shaped on itself, in particular folded, at the level of the mouth to close this bag.
  • This conformation obtained by folding or folding the envelope over itself, comprises: - an outer sleeve, above its mouth, in the inverted position of said bag, that is to say with its mouth down;
  • the envelope is shaped on itself at said mouth to close said bag.
  • the envelope has a conformation, in particular folding, capable of being obtained successively by: folding towards the outside, then folding towards the inside, of the edges of the opening of the bag. , to form a upturned flap extending by an overwrap;
  • FIG. 1 represents a single-use assembly, intended for example to be coupled to a device for establishing communication with an enclosure 3 fixed, this assembly comprising an inner bag according to the invention
  • FIGS. 2 to 7 respectively represent the different stages of shaping the envelope of the bag, filled with a filler (not shown), to result in the conformation represented in FIG. 1.
  • a single-use assembly has been shown, intended to be coupled with a device for placing in communication with a fixed enclosure, for example a clean or sterile room.
  • This set generally includes:
  • an outer bag 10 which can be under partial vacuum, having a flexible wall;
  • a member 11 for closing the outer bag 10, comprising, not shown, a removable door element with a seal;
  • the bag 1 comprises an envelope 2 closed on one side by a bottom 3, and delimiting on the other side a mouth 4, closed thanks to the conformation of 1 • envelope 2 described below, at this mouth.
  • this conformation determines, without discontinuity of material or wall, but also without sheet or other attached wall:
  • the parallel edges 2d of the flap 2b are brought together and folded, according to any suitable folding, to form at least one fold 7 for interior closure of the bag.
  • the parallel edges 2e of the overwrap 2c are folded to form at least one fold 9 for external closure of the bag. If necessary, the folds 7 for interior closure, and 9 for exterior closure, can be completed, to maintain their tightness, by any suitable welding, bonding, or pinching.
  • the casing 2 is made of a suitable material, for example any simple or complex plastic material, intrinsically having the flexibility and the tightness required for the application considered.
  • the load 12 tends to expand the bag 2 and the sleeve 6. Because of its double thickness, the latter opposes this expansion, and prohibits d 'the more the unfolding of the folds 7 under the effect of the load.
  • the entire envelope 2 is unfolded, above the mouth 4, without practicing opening at the latter, for example by cutting or tearing, and therefore without being liable to contaminate the interior of the bag 1, due to the opening manipulation of the latter.

Landscapes

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

Abstract

The invention concerns a bag (1) comprising an envelope (2) closed on one side by a base (3), and defining a hole (4) on the other side, containing a load (5) capable of passing, for example by gravity, through said hole, when said bag is turned upside down, said envelope (2) being so shaped on itself at said hole to close said bag. The invention is characterised in that, on the side opposite to the base (3), the envelope (2) has a shape, in particular a folding line, successively obtainable by: folding outwards, then folding inwards, the bag opening (4) edges (2a), to form a tucked up flap (2b) extended by an outer envelope (2c); folding the flap (2b) parallel edges (2d) brought closer, to form at least one fold (7) closing the bag internally; folding the outer envelope (2c) parallel edges (2e) brought closer, to form at least one fold (9) for closing the bag internally. The invention also concerns a bag (1) as per claim 1, characterised in that the bag (1) internal closure fold (7) and/or the bag (1) external closure fold (9) are welded, bonded or pressed.

Description

1 1
SAC AVEC AUTO-FERMETUREBAG WITH SELF-CLOSING
La présente invention concerne un sac d'emballage ou conditionnement d'une charge d'un ou plusieurs produits, susceptibles par exemple de s'écouler par gravité, qu'il s'agisse d'un produit solide particulaire, par exemple une poudre, ou qu'il s'agisse d'un objet simple ou d'objets multiples en vrac.The present invention relates to a bag for packaging or packaging a load of one or more products, capable for example of flowing by gravity, whether it is a particulate solid product, for example a powder, or whether it is a single object or multiple objects in bulk.
Plus particulièrement, l'invention s'intéresse aux sacs comprenant de manière générale une enveloppe fermée d'un côté par un fond, et délimitant de l'autre côté une bouche permettant lorsqu'elle est ouverte le passage ou traversée de la charge, s 'écoulant par exemple par gravité dans la position renversée dudit sac. Et l'enveloppe est conformée sur elle-même, notamment pliée, au niveau de la bouche pour fermer ce sac.More particularly, the invention relates to bags generally comprising an envelope closed on one side by a bottom, and delimiting on the other side a mouth allowing when it is open the passage or crossing of the load, s 'flowing for example by gravity in the inverted position of said bag. And the envelope is shaped on itself, in particular folded, at the level of the mouth to close this bag.
Pour une application particulière, la Demanderesse s'est intéressée à un sac tel que précédemment défini, répondant aux exigences suivantes :For a particular application, the Applicant was interested in a bag as defined above, meeting the following requirements:
- pouvoir être ouvert d'une seule main, par un geste simple, sans contact de la main de l'opérateur ou manipulateur avec l'intérieur ou le bord de la bouche, en particulier pour éviter toute contamination de cette dernière ;- be able to be opened with one hand, by a simple gesture, without contact of the hand of the operator or manipulator with the inside or the edge of the mouth, in particular to avoid any contamination of the latter;
- et, en position renversée et non ouverte, pouvoir s ' auto-fermer sous 1 ' effet de la charge du produit contenu par le sac, c'est-à-dire s'opposer à l'ouverture de la bouche sous l'effet de cette même charge.- And, in the inverted and unopened position, being able to self-close under the effect of the charge of the product contained by the bag, that is to say to oppose the opening of the mouth under the effect of this same charge.
Après avoir essayé différentes conformations ou pliages de l'enveloppe du sac, au niveau de sa bouche, la Demanderesse a établi que la conformation suivante, obtenue sans discontinuité de l'enveloppe et sans élément, feuille ou paroi rapportée, répondait aux exigences précitées. Cette conformation, obtenue par pliage ou repliage de l'enveloppe sur elle-même, comprend : - un manchon extérieur, au-dessus de sa bouche, dans la position renversée dudit sac, c'est-à-dire avec sa bouche en bas ;After having tried different conformations or folds of the envelope of the bag, at the level of its mouth, the Applicant established that the following conformation, obtained without discontinuity of the envelope and without element, sheet or attached wall, satisfied the above-mentioned requirements. This conformation, obtained by folding or folding the envelope over itself, comprises: - an outer sleeve, above its mouth, in the inverted position of said bag, that is to say with its mouth down;
- au moins un pli de fermeture intérieur ; - un col à l'intérieur duquel est disposé le pli de fermeture intérieur ;- at least one interior closing fold; - a collar inside which the interior closure fold is disposed;
- et au moins un pli de fermeture extérieur, fermant ledit col.- And at least one outer closure fold, closing said collar.
Selon la présente invention, l'enveloppe est conformée sur elle-même au niveau de ladite bouche pour fermer ledit sac. A cette fin, à l'opposé du fond, l'enveloppe présente une conformation, notamment pliure, susceptible d'être obtenue successivement par : pliage vers l'extérieur, puis pliage vers l'intérieur, des bords de l'ouverture du sac, pour former une bavette retroussée se prolongeant par une surenveloppe ;According to the present invention, the envelope is shaped on itself at said mouth to close said bag. To this end, opposite the bottom, the envelope has a conformation, in particular folding, capable of being obtained successively by: folding towards the outside, then folding towards the inside, of the edges of the opening of the bag. , to form a upturned flap extending by an overwrap;
- pliage des bords parallèles rapprochés de la bavette, pour former au moins un pli de fermeture intérieure du sac ;- folding of the parallel edges brought closer to the flap, to form at least one fold of interior closure of the bag;
- pliage des bords parallèles rapprochés de la surenveloppe, pour former au moins un pli de fermeture intérieure du sac.- folding of the parallel edges brought closer to the overwrap, to form at least one fold of interior closure of the bag.
Par différents essais, la Demanderesse a également établi qu'une telle conformation permettait au surplus d'obtenir une étanchéité relative au niveau de la fermeture de la bouche du sac, en particulier lorsque ce sac est disposé à l'intérieur d'un autre sac, lui-même extérieur, et que les deux sacs intérieur et extérieur sont sous vide partiel.By various tests, the Applicant has also established that such a conformation makes it possible, moreover, to obtain a relative seal at the level of the closure of the mouth of the bag, in particular when this bag is placed inside another bag. , itself exterior, and that the two interior and exterior bags are under partial vacuum.
La présente invention est maintenant décrite par référence au dessin annexé, dans lequel : la figure 1 représente un ensemble à usage unique, destiné par exemple à être accouplé à un dispositif de mise en communication avec une enceinte 3 fixe, cet ensemble comprenant un sac intérieur selon 1 ' invention ;The present invention is now described with reference to the accompanying drawing, in which: FIG. 1 represents a single-use assembly, intended for example to be coupled to a device for establishing communication with an enclosure 3 fixed, this assembly comprising an inner bag according to the invention;
- les figures 2 à 7 représentent respectivement les différentes étapes de mise en forme de l'enveloppe du sac, remplie avec une charge (non représentée) , pour aboutir à la conformation représentée à la figure 1.FIGS. 2 to 7 respectively represent the different stages of shaping the envelope of the bag, filled with a filler (not shown), to result in the conformation represented in FIG. 1.
Conformément à la figure 1, on a représenté un ensemble à usage unique, destiné à être accouplé avec un dispositif de mise en communication avec une enceinte fixe, par exemple une salle blanche ou stérile.In accordance with FIG. 1, a single-use assembly has been shown, intended to be coupled with a device for placing in communication with a fixed enclosure, for example a clean or sterile room.
Cet ensemble comporte de manière générale :This set generally includes:
- un sac extérieur 10 pouvant être sous vide partiel, ayant une paroi souple ;an outer bag 10 which can be under partial vacuum, having a flexible wall;
- un organe 11 d'obturation du sac extérieur 10, comportant de manière non représentée, un élément de porte amovible avec un joint d'étanchéité ;- A member 11 for closing the outer bag 10, comprising, not shown, a removable door element with a seal;
- et un sac intérieur 1, pouvant être également sous vide, disposé à l'intérieur du sac extérieur 10, contenant une charge 12 d'un produit ou d'objets en vrac. Le sac 1 comprend une enveloppe 2 fermée d'un côté par un fond 3, et délimitant de l'autre côté une bouche 4, fermée grâce à la conformation de 1 • enveloppe 2 décrite ci-après, au niveau de cette bouche.- And an inner bag 1, which can also be vacuum, placed inside the outer bag 10, containing a load 12 of a product or loose objects. The bag 1 comprises an envelope 2 closed on one side by a bottom 3, and delimiting on the other side a mouth 4, closed thanks to the conformation of 1 • envelope 2 described below, at this mouth.
Comme le montre la figure 1, cette conformation détermine, sans discontinuité de matière ou de paroi, mais aussi sans feuille ou autre paroi rapportée :As shown in Figure 1, this conformation determines, without discontinuity of material or wall, but also without sheet or other attached wall:
- un manchon 6 extérieur, au-dessus de sa bouche 4, dans la position renversée du sac, c'est-à-dire avec sa bouche en bas ; - au moins un pli 7 de fermeture intérieure ;- An outer sleeve 6, above its mouth 4, in the inverted position of the bag, that is to say with its mouth down; - at least one fold 7 of interior closure;
- un col 8 à l'intérieur duquel est disposé le pli 7 de fermeture intérieure ;- A neck 8 inside which is disposed the fold 7 of interior closure;
- et au moins un pli 9 de fermeture extérieure, fermant ledit col 8. Comme le montrent les figures 2 à 7 , cette conformation est obtenue de la manière suivante. Selon la figure 2, on part d'une enveloppe 2 avec un fond fermé 3 , en forme de godet, déterminant une ouverture 4 avec un bord supérieur et périphérique 2a.- And at least one fold 9 of external closure, closing said neck 8. As shown in Figures 2 to 7, this conformation is obtained in the following manner. According to Figure 2, we start from an envelope 2 with a closed bottom 3, in the form of a bucket, determining an opening 4 with an upper and peripheral edge 2a.
Comme montré par la figure 3 , on plie vers l'extérieur, puis vers l'intérieur, les bords 2a de l'ouverture 4 du sac en cours de formation, pour obtenir une bavette retroussée 2b se prolongeant par une surenveloppe 2c.As shown in Figure 3, we fold outward, then inward, the edges 2a of the opening 4 of the bag being formed, to obtain a rolled up flap 2b extending by an overwrap 2c.
Conformément aux figures 3 et 4 , on rapproche et plie, selon tout pliage approprié, les bords parallèles 2d de la bavette 2b, pour former au moins un pli 7 de fermeture intérieure du sac.In accordance with FIGS. 3 and 4, the parallel edges 2d of the flap 2b are brought together and folded, according to any suitable folding, to form at least one fold 7 for interior closure of the bag.
Comme montré par la figure 6, c'est la surenveloppe 2e qui permet d'obtenir le col 8 à l'intérieur duquel est disposé le pli 7 de fermeture intérieur.As shown in FIG. 6, it is the overwrap 2e which makes it possible to obtain the neck 8 inside which the fold 7 of internal closure is disposed.
Conformément aux figures 6 et 7 , on plie les bords parallèles 2e de la surenveloppe 2c pour former au moins un pli 9 de fermeture extérieure du sac. Si nécessaire, les plis 7 de fermeture intérieure, et 9 de fermeture extérieure, peuvent être complétés, pour le maintien de leur étanchéité, par toute soudure, collage, ou pinçage approprié.In accordance with FIGS. 6 and 7, the parallel edges 2e of the overwrap 2c are folded to form at least one fold 9 for external closure of the bag. If necessary, the folds 7 for interior closure, and 9 for exterior closure, can be completed, to maintain their tightness, by any suitable welding, bonding, or pinching.
Bien entendu, l'enveloppe 2 est en un matériau approprié, par exemple toute matière plastique simple ou complexe, présentant intrinsèquement la souplesse et 1' étanchéité requises pour l'application considérée.Of course, the casing 2 is made of a suitable material, for example any simple or complex plastic material, intrinsically having the flexibility and the tightness required for the application considered.
Grâce à la conformation selon l'invention, et en position renversée du sac 1, la charge 12 tend à dilater le sac 2 et le manchon 6. Du fait de sa double épaisseur, ce dernier s'oppose à cette dilatation, et interdit d'autant plus le dépliage des plis 7 sous l'effet de la charge.Thanks to the conformation according to the invention, and in the inverted position of the bag 1, the load 12 tends to expand the bag 2 and the sleeve 6. Because of its double thickness, the latter opposes this expansion, and prohibits d 'the more the unfolding of the folds 7 under the effect of the load.
Avec la conformation précédemment décrite, en tirant d'une seule main sur le pli extérieur 9, on déplie la totalité de l'enveloppe 2, au-dessus de la bouche 4, sans pratiquer d'ouverture au niveau de cette dernière, par découpe ou déchirement par exemple, et par conséquent sans être susceptible de contaminer l'intérieur du sac 1, du fait de la manipulation d'ouverture de ce dernier. With the conformation previously described, by pulling with one hand on the outer fold 9, the entire envelope 2 is unfolded, above the mouth 4, without practicing opening at the latter, for example by cutting or tearing, and therefore without being liable to contaminate the interior of the bag 1, due to the opening manipulation of the latter.

Claims

66
REVENDICATIONS
1) Sac (1) comprenant une enveloppe (2) fermée d'un côté par un fond (3) , et délimitant une bouche (4) de l'autre côté, contenant une charge (5) susceptible de traverser, par exemple par gravité, ladite bouche, dans la position renversée dudit sac, ladite enveloppe (2) étant conformée sur elle-même au niveau de ladite bouche pour fermer ledit sac, caractérisé en ce que, à l'opposé du fond (3), l'enveloppe (2) présente une conformation, notamment pliure, susceptible d'être obtenue successivement par : pliage vers l'extérieur, puis pliage vers l'intérieur, des bords (2a) de l'ouverture (4) du sac, pour former une bavette retroussée (2b) se prolongeant par une surenveloppe (2c) ;1) Bag (1) comprising an envelope (2) closed on one side by a bottom (3), and delimiting a mouth (4) on the other side, containing a load (5) capable of passing through, for example by gravity, said mouth, in the inverted position of said bag, said envelope (2) being shaped on itself at said mouth to close said bag, characterized in that, opposite the bottom (3), the envelope (2) has a conformation, in particular folding, capable of being obtained successively by: folding outwards, then folding inwards, edges (2a) of the opening (4) of the bag, to form a upturned flap (2b) extended by an overwrap (2c);
- pliage des bords parallèles (2d) rapprochés de la bavette (2b) , pour former au moins un pli (7) de fermeture intérieure du sac ;- folding the parallel edges (2d) close to the flap (2b), to form at least one fold (7) for closing the bag inside;
- pliage des bords (2e) parallèles rapprochés de la surenveloppe (2c) , pour former au moins un pli (9) de fermeture intérieure du sac.- folding of the edges (2e) parallel close to the overwrap (2c), to form at least one fold (9) of interior closure of the bag.
2) Sac (1) selon la revendication 1, caractérisé en ce que le pli (7) de fermeture intérieure du sac et/ou le pli (9) de fermeture extérieure du sac (1) sont soudés, collés, ou pinces. 2) Bag (1) according to claim 1, characterized in that the fold (7) of inner closure of the bag and / or the fold (9) of outer closure of the bag (1) are welded, glued, or clips.
EP99911862A 1998-04-03 1999-04-01 Bag with self-closure Expired - Lifetime EP1066200B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9804406A FR2776990B1 (en) 1998-04-03 1998-04-03 BAG WITH SELF-CLOSING
FR9804406 1998-04-03
PCT/FR1999/000768 WO1999051505A1 (en) 1998-04-03 1999-04-01 Bag with self-closure

Publications (2)

Publication Number Publication Date
EP1066200A1 true EP1066200A1 (en) 2001-01-10
EP1066200B1 EP1066200B1 (en) 2001-12-12

Family

ID=9525025

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99911862A Expired - Lifetime EP1066200B1 (en) 1998-04-03 1999-04-01 Bag with self-closure

Country Status (7)

Country Link
US (1) US6793392B1 (en)
EP (1) EP1066200B1 (en)
JP (1) JP4271856B2 (en)
AU (1) AU3039999A (en)
DE (1) DE69900598T2 (en)
FR (1) FR2776990B1 (en)
WO (1) WO1999051505A1 (en)

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US8292070B2 (en) * 2008-11-18 2012-10-23 Xerox Corporation System and method for green and rapid paper packaging
US10604322B2 (en) * 2015-10-21 2020-03-31 Societe Des Produits Nestle S.A. Triple-folded hot air sealed thermoplastic bags

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US1652457A (en) * 1926-04-29 1927-12-13 Stopperless Water Bottle Compa Closure for water bags
US3406746A (en) * 1964-04-23 1968-10-22 Becton Dickinson Co Package and packaging method for fragile articles
FR1559682A (en) * 1967-12-11 1969-03-14
DE2246752A1 (en) * 1972-09-23 1974-04-04 Windmoeller & Hoelscher ANGLED FRINGE VALVE
US3998304A (en) * 1976-04-21 1976-12-21 C. Willis Edgerton, Jr. Waterproof container for goods
US4184596A (en) * 1977-03-24 1980-01-22 Avery John R Container for fragile articles
US4521910A (en) * 1984-04-19 1985-06-04 St. Regis Corporation Multiwall cooler bag
US5108195A (en) * 1991-08-26 1992-04-28 Perron Georgia M Waste bag with reclosable sealing opening
DE29701558U1 (en) * 1996-02-29 1997-04-10 Paul Hartmann AG, 89522 Heidenheim Container for compressible goods
US5713669A (en) * 1996-12-05 1998-02-03 Tenneco Packaging Plastic bag with zipper slider captured in pocket
US5875611A (en) * 1997-02-25 1999-03-02 Illinois Tool Works Inc. Offset sealing method for plastic films
US6350057B1 (en) * 1997-05-22 2002-02-26 Sealstrip Corp. Reinforced reclosable package seals
US5816709A (en) * 1997-10-08 1998-10-06 Demus; Andrew Leak-proof personal travel bag

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Title
See references of WO9951505A1 *

Also Published As

Publication number Publication date
WO1999051505A1 (en) 1999-10-14
FR2776990A1 (en) 1999-10-08
US6793392B1 (en) 2004-09-21
JP4271856B2 (en) 2009-06-03
EP1066200B1 (en) 2001-12-12
JP2002510586A (en) 2002-04-09
DE69900598D1 (en) 2002-01-24
AU3039999A (en) 1999-10-25
FR2776990B1 (en) 2000-05-19
DE69900598T2 (en) 2002-05-29

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