US20080124007A1 - Package with strip-based closure system and method for its manufacture - Google Patents
Package with strip-based closure system and method for its manufacture Download PDFInfo
- Publication number
- US20080124007A1 US20080124007A1 US12/015,909 US1590908A US2008124007A1 US 20080124007 A1 US20080124007 A1 US 20080124007A1 US 1590908 A US1590908 A US 1590908A US 2008124007 A1 US2008124007 A1 US 2008124007A1
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- Prior art keywords
- welds
- film
- sheets
- films
- package
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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
- 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
- B65D31/145—Valve bags, i.e. with valves for filling the filling port being provided in a flat upper sealing-edge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/60—Uniting opposed surfaces or edges; Taping
- B31B70/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/74—Auxiliary operations
- B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
- B31B70/84—Forming or attaching means for filling or dispensing contents, e.g. valves or spouts
- B31B70/85—Applying patches or flexible valve inserts, e.g. applying film-like valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
- Making Paper Articles (AREA)
- Packages (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Supplying Of Containers To The Packaging Station (AREA)
- Cartons (AREA)
- Package Closures (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
Abstract
The subject of the invention is a package comprising at least two sheets (2, 3) and two flexible films (10 a, 10 b) placed between them and welded to the sheets (2, 3) by the welds (11 a, 11 b) respectively, and welded together and to the sheets (2, 3) by the welds (12 a, 12 b), at least one of the two films being folded over the other at that end of the films on the opposite side to the welds (11 a, 11 b).
The subject of the invention is also a method for manufacturing such a package.
The invention makes it possible to obtain a package of simplified structure and simplified manufacture.
Description
- This is a continuation of U.S. application Ser. No. 10/312,318, filed Aug. 4, 2003, which is a 371 application of PCT/FR01/01935 filed Jun. 20, 2001. The contents of the U.S. application Ser. No. 10/312,318 are incorporated herein by references in their entirety.
- The subject of the invention is a novel flat closure system, suitable for packages of the bag type, especially those made of plastic. These packages or bags may be DOYPACK® or so-called “three weld” bags.
- Many plastic packages or bags, provided with a valve or otherwise, are already known.
- GB-A-826 784 discloses a bag obtained by successively folding a plastic film. This film is folded firstly along a straight line having a central orifice, two V-shaped weld regions are applied, and then the film is folded over on itself. The three free sides are welded, together with part of the fourth side having the bellows with the V-welds. The presence of the opening at the bottom of the bellows, and the presence of the two V-shaped welds and the partial weld on the side of the opening, allow the valve formed by the central orifice to operate properly.
- FR-A-2 711 115 discloses an inflatable bag provided with a valve. This bag is obtained by forming two parallel welds in a film folded over on itself, which is then again folded over on itself, in a manner similar to that of GB-A-826 781. However, in this case the film doubly folded over on itself is welded so as to leave the folded-over edges of the film accessible from the outside.
- WO-A-95/23742 discloses a complex system obtained by successive folding with intermediate weld steps. According to a first variant, the bag obtained is double-walled. According to one embodiment, based on this first variant, it is possible to produce a flexible pocket with a single wall. In this case, the valve system consists of an attached film, which is pierced by application of a straw. This film may be made of aluminium or of polymer. According to that document, an orifice is firstly provided by welding along two parallel lines (between which the straw will be placed). This part is then folded over on the sheet which is welded along its ends. Another sheet is then added, to form the container. The straw pierces the membrane, but when the straw is removed the two walls are pressed against each other by the pressure of the fluid.
- Document JP-A-09-254999 discloses a bag made of synthetic resin. The bag consists of two films hermetically joined together laterally. A strip is placed parallel to a jaw between the two films. The strip is provided partly with a non-adhesive part. This non-adhesive part serves as a flow opening.
- FR-A-1 436 217 discloses a method for manufacturing a bag for packaging drinks. According to that process, a container formed from a sheet of synthetic thermoplastic is emptied by means of a straw. The container is manufactured starting from a tube having lateral folds, the said tube being drawn from a synthetic thermoplastic sheet. The straw is introduced into the container between the lateral folds pressed against one another.
- However, the above systems have several drawbacks. They are complicated and require a complicated folding device. They do not allow the incorporation of stoppers, which are often associated with this type of product.
- The invention makes it possible to remedy the drawbacks of the systems of the prior art. Thus, the invention provides a package comprising at least two sheets and two flexible films placed between them and welded to the sheets by the welds respectively, and welded together and to the sheets by the welds, at least one of the two films being folded over the other at that end of the films on the opposite side to the welds.
- According to one embodiment, the two films are folded over on themselves at that end of the films on the opposite side to the welds.
- According to another embodiment, the package comprises at least two sheets and two flexible films placed between them and welded to the sheets by the welds respectively, and welded together by the welds and to the sheets by the welds, the welds being between the welds, at least one of the two films being folded over the other at that end of the films on the opposite side to the welds.
- According to one embodiment, the two films are folded over on themselves at that end of the films on the opposite side to the welds.
- According to yet another embodiment, the package comprises at least two sheets, a flexible film placed between them and folded over on itself and welded to the sheets by the welds respectively and welded to itself and to the sheets by the welds.
- According to one embodiment, the fold formed by the film(s) can be unfolded by inserting a straw between the films.
- According to yet another embodiment, the fold formed by the film(s) cannot be unfolded by inserting a straw.
- According to another embodiment, the package has an additional weld between the sheets.
- According to yet another embodiment, the flexible film is made of PE, EVA, PP, OPP, PET or PA.
- Provision may also be made for the sheets to be semi-rigid.
- According to one embodiment, the sheets and the flexible film have the following characteristics, where H is the thickness in mm and E is the equivalent modulus of the film in N·mm−2
- sheet: H3E=0.1 to 50 N·mm;
- film: H3E=0.5×10−3 to 5 N·mm;
- with preferably:
- sheet: H3E=0.5 to 25 N·mm;
- film: H3E=0.05 to 1 N·mm;
- with, in both cases, the relationship:
- film H3E<sheet H3E.
- According to another embodiment, the package is in the form of a DOYPACK® or three-weld bag.
- The invention also relates to a method for manufacturing a package according to the teaching of the invention, comprising the following steps:
-
- insertion of a screen-film between the films;
- welding of the films to the sheets along the welds respectively;
- extraction of the screen-film;
- optionally, welding of the films together along the welds; and
- welding of the films and the sheets together along the welds.
- According to one embodiment, the manufacturing method comprises the following steps:
-
- insertion of a screen-film in the fold formed by the film;
- welding of the film to the sheets along the welds respectively;
- extraction of the screen-film; and
- welding of the film and the sheets together along the welds.
- According to yet another embodiment of the process, the screen-film is made of PTFE or of Teflon®-coated fabric.
- The invention will now be described in greater detail in the description which follows and with reference to the drawings, in which:
-
FIG. 1 shows a first package; -
FIGS. 2 a and 2 b show the operation of this first package; -
FIG. 3 shows a method for manufacturing this first package; -
FIGS. 4 a and 4 b show the filling of this first package; -
FIGS. 5 a and 5 b show two embodiments of a second package; -
FIG. 6 shows this second package; -
FIG. 6 a shows an alternative embodiment of this second package; -
FIGS. 7 a and 7 b show the operation of this second package; -
FIGS. 8 a and 8 b show a method for manufacturing this second package; -
FIGS. 9 a and 9 b show the filling of this second package; -
FIGS. 10 and 11 show a third package; -
FIG. 12 shows a stopper designed to be used with this third package; -
FIGS. 13 a and 13 b show a method for manufacturing this third package; -
FIGS. 14 a and 14 b show the filling of this third package; and -
FIG. 15 shows an alternative embodiment of the first and second packages. - Referring to the exploded view in
FIG. 1 , abag 1 comprises twosheets sheets flexible film 4. This flexible film is made of a suitable material, especially a plastic. Thisfilm 4 may especially be made of PE, or else of EVA, PP, OPP, PET, PA, etc. This film has a thickness of between 10 and 500 μm, and preferably between 30 and 100 μm. - In general, these
sheets flexible film 4 have moduli and thicknesses such that, with H the thickness in mm and E the equivalent modulus of the film in N mm−2 - semi-rigid sheet: H3E=0.1 to 50 N·mm;
- flexible film: H3E=0.5×10−3 to 5 N·mm;
- ith preferably:
- semi-rigid sheet: H3E=0.5 to 25 N·mm;
- flexible film: H3E=0.05 to 1 N·mm;
- with, in both cases, the relationship:
- flexible film H3E<semi-rigid sheet H3E.
- This
film 4 is welded, over part of its length, to one end of thesheet 3 along the weld 5 (which is shown here by cross hatching). This film is also welded, over part of its width, to thesheet 2 along twowelds weld 5. Thesewelds weld 5 lies approximately between thewelds weld 5 lies completely between thewelds welds film 4, or even extend beyond this width. This very simple system affords the same advantages as the prior art, in particular WO-A-95/23742, but without the drawbacks of the many successive folds and welds. - As an example, the film is in the form of a strip having a width of between 5 and 200 mm, and preferably between 10 and 50 mm. The length of the strip (in fact this time the width of the bag) is between 20 and 1500 mm, preferably between 50 and 400 mm.
-
FIGS. 2 a and 2 b show the operation of the valve thus formed. InFIG. 2 a, the valve is in the open position (for example after insertion of a straw). Thefilm 4 is then in contact with thesheet 3. When the system is relaxed, the internal pressures (for example owing to only the weight of the contents) press thefilm 4 against thesheet 2 to which it is welded along thewelds FIG. 2 b illustrates this case, a cut along theweld 6 b being made so as to more clearly indicate the phenomenon. The arrows indicate the thrust exerted, for example, by a fluid in the bag. -
FIG. 3 shows, in cross section, and illustrates a way of manufacturing the bag inFIG. 1 . The manufacture makes use of a screen-film which allows theflexible film 4 to be selectively welded either to thesheet 2 or to thesheet 3. In a first step, thefilm 4 in the form of a strip is welded to thesheet 3 along aweld 5. Next, afilm 7 forming a screen between the strip offilm 4 and thesheet 3 is inserted. Thesheet 2 is then placed against the above structure and the combination is placed between two jaws of a welding machine or welding bars. One of them, thejaw 8 a, is for example at room temperature while thejaw 8 b is at a temperature high enough to weld thefilm 4 to thesheet 2 along thewelds film 7 is removed. Thus, the closure system shown inFIG. 1 is obtained. Thisfilm 7 forming a screen is made of a substantially heat-insensitive material that does not adhere to the film at the welding temperature. It may for example be made of PTFE or of another material, such as Teflon®-coated fabric. The method could also be in the reverse sequence, with formation of thewelds sheet 7 between these welds and then formation of theweld 5. - The closure system shown in
FIG. 1 (termed type I hereafter) may be fitted for little cost onto existing bags. These are conventional bags such as a DOYPACK® bag, a three-weld bag, etc. Reference may be made, for example, to Application FR 9 811 622, to U.S. Pat. No. 3,380,646 and to the Certificate of Addition to Patent FR-A-1 327 875. These documents describe a container known as a DOYPACK® or three-weld bag. The container has two faces and a bottom part which forms an extension of said faces, the bottom part being folded in so as to form with said faces a W-section; two lateral welds extending throughout the height of said faces, including said bottom part, and oblique welds or else a curvilinear weld, the starting points of which are situated at the lateral welds close to the fold of said bottom part, joining each face with the confronting bottom area. The closure system may be placed in the centre or on one side of the bag, according to convenience. In most cases, a straw or other similar instrument will be provided with the bag. This straw, inserted between thesheets sheets weld 5 and is naturally positioned between thewelds film 4 and on the other side by thesheet 2 are pressed against each other. A seal is thus obtained. - This system may also include, as film 4 (or possibly as sheet 2), a repositionable film. Such films are known and comprise a support film 4 a, a layer of adhesive 4 b and a welding layer 4 c. The welding layer is welded along a seam to the
sheet 2 which is facing it (or to a welding layer placed against the said sheet 2). Upon tearing, the strip corresponding to the welded part is fastened to thesheet 2, thereby exposing the adhesive. After the straw has been removed, pressure may then be applied in order to completely reseal the system. - Such repositionable films are described for example in WO-A-97/19867. It is also possible to use, not a repositionable film, but a peelable film. Such films are known and, unlike the above films, do not include a layer of permanent adhesive but an interlayer 4 d. These films ensure, as above, the integrity of the bag before being pierced by a straw, but they are not repositionable. In both these cases, the strip of
film 4 may be welded to thesheet 2 along an additional weld 6 c, lying between thewelds welds weld 5 being at the upper end). This weld 6 c may be made at the same time as thewelds - The bag provided with the type I closure system is filled conventionally, as illustrated in
FIGS. 4 a and 4 b (the closure system being on one side of the bag). Theweld 5 extends, as shown, over the entire length of the sheet 3 (butweld 5 could be only over that part between thewelds film 4 is welded to thesheet 2 only at thewelds film 4 and thesheet 2 in the region lying between theweld 6 a and the rest of the bag. There is therefore a filling region, shown by the arrow. Once the bag has been filled, the weld 9 is formed, this weld extending from theweld 6 a to the end of the bag, as shown inFIG. 4 b. Thesheets film 4 are welded together by this weld. -
FIGS. 5 a and 5 b show, in cross section, a second package. In this package, thefilm 4 is replaced with twofilms film sheets welds weld 5 in the type I package). InFIG. 5 a, thefilm 10 a is not folded, whereas it is folded inFIG. 5 b. These two new types are termed type IIa and type IIb, respectively. -
FIG. 6 shows a view of these second packages in the closed state. The presence of twovertical welds sheets films welds welds welds welds welds welds welds film welds -
FIG. 6 a shows an alternative embodiment of these second packages in the closed state (in which thewelds films welds sheets films welds welds welds welds FIG. 6 apply mutatis mutandis. - The operation of the valve is more clearly explained with reference to
FIGS. 7 a and 7 b (with the type IIa for example—the first embodiment—i.e. without the welds 12′a and 12′b).FIG. 7 a shows the valve closed, a fold of thefilm 10 b covering thefilm 10 a and sealing. Insertion of a straw for example between thesheets films FIG. 7 b. When the straw is removed, thefilms films - Thus, depending on the configuration chosen, the operation is either reversible or irreversible. In the case of reversible operation, with opening/closing cycles, there is a large distance between the
respective welds 12 a (or 12′a) and 12 b (or 12′b) compared with the height of the fold. In the case of irreversible operation, with the bag being delivered open, with only closure possible, there is a small distance between therespective welds 12 a (or 12′a) and 12 b (or 12′b) compared with the height of the fold. Choosing the respective dimensions lies within the competence of a person skilled in the art. - The characteristics of the films (thickness, etc.) are substantially the same as for type I. The fold(s) represents (represent), a percentage of the distance between the
respective welds 12 a (or 12′a) and 12 b (or 12′b), between 5 and 50%. If it is desired to open the bag using a straw, the fold(s) represents (represent) in general from 5 to 25%. If it is desired that opening cannot occur, the fold(s) represents (represent) in general from 25 to 50%. -
FIGS. 8 a and 8 b illustrate the method of producing the type IIa or IIb bags (here the type IIa—the first embodiment—has been chosen to be shown).FIG. 8 a shows thesheets films film 7 of the same kind as that used for manufacturing the type I bag. Welding bars 13 a and 13 b heated to the welding temperature are applied so as to obtain thewelds film 7 is removed and then, as shown inFIG. 8 b, vertical weld bars 14 a and 14 b, heated to the temperature for welding thesheets films welds - In the case of the second embodiment, the method also includes the step for the welds 12′a and 12′b. In such a case, it is possible to separate the
sheets films sheets films -
FIGS. 9 a and 9 b show the filling region. The closure system is shown on one side of the bag. Thewelds FIG. 9 a shows the open space left between thefilm 10 a and thesheet 2, which allows filling, indicated schematically by the arrow. Once filling has been completed, theweld 15 extending from theweld 12 a to the edge of the bag is made, as shown inFIG. 9 b. Thesheets films -
FIG. 10 shows a third package (termed hereafter type III). In this package, thefilm 16 in the form of a strip is folded over on itself and welded to thesheets welds film 16 is of the kind similar to that of thefilms -
FIG. 11 shows a side view in which thewelds welds welds welds film 16 or even extend beyond this width. - The valve thus formed is termed type III. Unlike types I and IIa and IIb, the
film 16, in the original state, does not allow a straw to pass through it. It is necessary to pierce theflexible film 16. The piercing tool is preferably apiercer stopper 19, as shown inFIG. 12 . The piercing tool may also be a straw. - The
piercer stopper 19 shown inFIG. 12 comprises abody 20 through which achannel 21 passes. Advantageously, the piercer stopper also has apiercer tube 22. Thebody 20 advantageously has a screw thread or splines, which will allow this stopper to be fastened to theflexible film 16. Thisfilm 16 is preferably elastic so as to obtain the effect of a diaphragm gripping the stopper. Thus, thisstopper 19 may be provided with acap 23 which may be screwed on. This stopper may be a simple stopper, one with a pouring lip, reclosable, tamperproof, one with a child-proof safety system, etc. -
FIG. 13 a shows the first type of way to manufacture the type III bag. As previously, the manufacture makes use of a screen-film 7. Firstly, thefilm 16 is welded to thesheets welds film 7 being inserted into the fold of thefilm 16. Welding bars 24 a and 24 b weld along thewelds film 7 is then removed and welding bars 25 a and 25 b weld thesheets film 16 together along thewelds -
FIGS. 14 a and 14 b show the filling operation. The closure system is shown on one side of the bag. Thewelds FIG. 14 a shows the open space left between the film 16 (which is folded) and thesheet 2, which allows filling, indicated schematically by the arrow. Once filling has been completed, theweld 26 extending from theweld 18 a to the edge of the bag is made, as shown inFIG. 14 b. Thesheets film 16 are welded together by this weld. -
FIG. 15 shows a package common to types I and IIa/IIb. In this package, thesheets additional line 27, placed along an extension of thesheets simple marking line 28 may be placed beneath theweld 27 so as to encourage the user to cut the bag along this marking line. The additional weld ensures complete sealing. - The package, by dint of its embodiments of type I, II (IIa/IIb) and III therefore has many advantages, by the combination of two
semi-rigid sheets FIG. 1 applies mutatis mutandis to the other embodiments. Likewise, the other features (width, length, operating conditions, welding conditions, etc.), when they are not specifically mentioned in an example of a package, are common to the various embodiments. - The bag is:
-
- leaktight
- by welding,
- by film/film contact,
- by folding of the films,
- by film/attached stopper contact,
- by a ZIPLOCK system (two profiles, generally extruded, which cooperate by one fitting into the other),
- by a peelable/repositionable film (type I);
- openable and reclosable
- by an attached stopper (type III),
- by mechanical operation of the sealing system (type I, II);
- tamperproof
- by an attached stopper (type III),
- by welding
- film/sheet or
- sheet/sheet.
- leaktight
- The bag also has the advantage of being flat (before filling), thereby making it easier to handle and decreasing the volumes for packaging the bags.
- The bag has in general an overall thickness of less than 2 mm, preferably less than 500 μm.
- The bags are suitable for all technical fields, especially the food, chemical, detergents and cosmetics fields; and they apply for liquids, powders, granules or solids of small size (for example sweets). As was indicated above, the bag may be of a use-once type, such as a “rubbish bin”.
- The bag of type III (with an attached stopper) makes it possible to integrate the stopper function into the manufacturing logic and into the methods for flexible bags (such as Doypacks and three-weld bags).
- Finally, it will be noted that the sheets and films may include conventional additives and may consist of several layers, as is known in the art. Thus, the films or sheets may comprise several layers, one of which can be welded.
- The invention is not limited to the embodiments shown, but is easily capable of many improvements within the competence of a person skilled in the art.
Claims (15)
1-15. (canceled)
16. A package comprising at least two sheets (2, 3) and two flexible films (10 a, 10 b) placed between them and welded to the sheets (2, 3) by first welds (11 a, 11 b) respectively, and welded together and to the sheets (2, 3) by vertical second welds (12 a, 12 b), the vertical second welds extending substantially over the width of the films, and the first welds extending substantially between the vertical second welds, the vertical second welds welding the films and the sheets together along the whole width of the films, and at least one of the two films being folded over the other at an end of the film on the opposite side to the first welds (11 a, 11 b).
17. The package according to claim 16 , the two films being folded over on themselves at that end of the films on the opposite side to the first welds (11 a, 11 b).
18. The package according to claim 16 , the two films being welded together by vertical third welds (12′a, 12′b), the vertical third welds (12′a, 12′b) being comprised between the vertical second welds (12 a, 12 b).
19. The package according to claim 18 , the two films being folded over on themselves at that end of the films on the opposite side to the first welds (11 a, 11 b).
20. The package according to claim 16 , in which the fold formed by the film(s) can be unfolded by inserting a straw between the films (10 a, 10 b), the fold(s) representing between 5% and 25% of the distance between the second welds.
21. The package according to claim 16 , in which the fold formed by the film(s) cannot be unfolded by inserting a straw, the fold(s) representing between 25% and 50% of the distance between the third welds.
22. The package according to claim 16 , having an additional weld (15) between the sheets (2, 3).
23. The package according to claim 16 , in which the flexible film is made of PE, EVA, PP, OPP, PET or PA.
24. The package according to claim 16 , in which the sheets (2, 3) are semi-rigid.
25. The package according to claim 16 , in which the sheets (2, 3) and the flexible film (10 a, 10 b; 16) have the following characteristics, where H is the thickness in mm and E is the equivalent modulus of the film in N mm−2:
sheet (2, 3): H3E=0.1 to 50 N·mm;
film (10 a, 10 b; 16): H3E=0.5×10−3 to 5 N·mm.
26. The package according to claim 16 , in the form of a DOYPACK® or three-weld bag.
27. The package according to claim 25 , in which the sheets (2, 3) and the flexible film (10 a, 10 b; 16) have the following characteristics, where H is the thickness in mm and E is the equivalent modulus of the film in N mm−2:
sheet (2, 3): H3E=0.5 to 25 N·mm;
film (10 a, 10 b; 16): H3E=0.05 to 1 N·mm.
28. The package according to claim 25 , in which the sheets (2, 3) and the flexible film (10 a, 10 b; 16) have the following characteristics, where H is the thickness in mm and E is the equivalent modulus of the film in N mm−2:
film (10 a, 10 b; 16) H3E<sheet (2, 3) H3E.
29. The package according to claim 27 , in which the sheets (2, 3) and the flexible film (10 a, 10 b; 16) have the following characteristics, where H is the thickness in mm and E is the equivalent modulus of the film in N mm−2:
film (10 a, 10 b; 16) H3E<sheet (2, 3) H3E.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/015,909 US20080124007A1 (en) | 2000-06-22 | 2008-01-17 | Package with strip-based closure system and method for its manufacture |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0008041A FR2810640B1 (en) | 2000-06-22 | 2000-06-22 | PACKAGE WITH STRIP CLOSURE SYSTEM, METHOD FOR MANUFACTURING SAME |
FR00/08041 | 2000-06-22 | ||
PCT/FR2001/001935 WO2001098159A1 (en) | 2000-06-22 | 2001-06-20 | Package with strip closure system, method for making same |
US10/312,318 US20040022459A1 (en) | 2000-06-22 | 2001-06-20 | Package with strip closure system, method for making same |
US12/015,909 US20080124007A1 (en) | 2000-06-22 | 2008-01-17 | Package with strip-based closure system and method for its manufacture |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/312,318 Continuation US20040022459A1 (en) | 2000-06-22 | 2001-06-20 | Package with strip closure system, method for making same |
PCT/FR2001/001935 Continuation WO2001098159A1 (en) | 2000-06-22 | 2001-06-20 | Package with strip closure system, method for making same |
Publications (1)
Publication Number | Publication Date |
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US20080124007A1 true US20080124007A1 (en) | 2008-05-29 |
Family
ID=8851588
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/312,318 Abandoned US20040022459A1 (en) | 2000-06-22 | 2001-06-20 | Package with strip closure system, method for making same |
US12/015,909 Abandoned US20080124007A1 (en) | 2000-06-22 | 2008-01-17 | Package with strip-based closure system and method for its manufacture |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/312,318 Abandoned US20040022459A1 (en) | 2000-06-22 | 2001-06-20 | Package with strip closure system, method for making same |
Country Status (10)
Country | Link |
---|---|
US (2) | US20040022459A1 (en) |
EP (1) | EP1296876B1 (en) |
JP (1) | JP2003535778A (en) |
AT (1) | ATE320974T1 (en) |
DE (1) | DE60118192T2 (en) |
DK (1) | DK1296876T3 (en) |
ES (1) | ES2264446T3 (en) |
FR (1) | FR2810640B1 (en) |
PT (1) | PT1296876E (en) |
WO (1) | WO2001098159A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2537669A1 (en) * | 2011-06-22 | 2012-12-26 | Jenton International Limited | Method of manufacturing a valve bag |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6729473B2 (en) * | 2002-06-20 | 2004-05-04 | Cti Industries Corporation | Air-evacuable bag with double-layered valve film and method for manufacturing same |
US9004758B2 (en) * | 2008-10-22 | 2015-04-14 | Sealed Air Corporation (Us) | Inflatable structure for packaging and associated apparatus and method |
US9085405B2 (en) | 2008-10-22 | 2015-07-21 | Sealed Air Corporation (Us) | Inflatable structure for packaging and associated apparatus and methods |
US8978693B2 (en) | 2013-01-28 | 2015-03-17 | Windcatcher Technology LLC | Inflation valve allowing for rapid inflation and deflation of an inflatable object |
US9321236B2 (en) | 2013-06-25 | 2016-04-26 | Sealed Air Corporation (Us) | Automated inflation device |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2799314A (en) * | 1951-09-07 | 1957-07-16 | Dreyer Andre | Leak-proof containers for liquids |
US3282412A (en) * | 1963-11-06 | 1966-11-01 | Wayne V Rodgers | Valved mixing container or package |
US3380646A (en) * | 1962-11-14 | 1968-04-30 | Leon Doyen | Container of plastic material and method of producing same |
US3430842A (en) * | 1966-09-22 | 1969-03-04 | Gennosuke Yamaguchi | Valved bag |
US3806025A (en) * | 1970-10-19 | 1974-04-23 | T Marshall | Stemming bag |
US4557377A (en) * | 1982-10-16 | 1985-12-10 | Johnsen & Jorgensen Jaypak Limited | Mixing bag and bag making apparatus |
US6371643B2 (en) * | 1999-06-02 | 2002-04-16 | S. C. Johnson Home Storage, Inc. | Multi-Layered freezer storage bag |
US6481889B2 (en) * | 1994-03-03 | 2002-11-19 | Walk Pak Holding N.V. | Sealed enclosure, method for the manufacture thereof, and method of packaging a beverage in said enclosure |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB826781A (en) | 1957-03-16 | 1960-01-20 | Thomas Vale Cooper | Improvements relating to mobile apparatus for spreading powdery, granular and analogous matter |
GB826784A (en) | 1957-03-21 | 1960-01-20 | Mono Containers Ltd | Method of making containers from flexible sheet material |
GB1001873A (en) * | 1961-08-25 | 1965-08-18 | Sanders Bernard | Improvements in and relating to bags |
FR1327875A (en) | 1962-04-11 | 1963-05-24 | Plastic packaging and its manufacturing process | |
FR1436217A (en) * | 1965-04-15 | 1966-04-22 | Beverage packaging bag and its manufacturing process | |
DE3727818A1 (en) * | 1987-07-23 | 1989-02-02 | Al Sharhan Bader A | PACKAGING CONTAINER |
FR2711115B1 (en) | 1993-10-11 | 1995-12-08 | High Tech Packaging France Sa | Method of manufacturing a waterproof inflatable enclosure provided with a valve. |
FR2741605B1 (en) | 1995-11-29 | 1998-01-16 | Soplaril Sa | SHUTTER STRUCTURE FOR A CONTAINER, CONTAINER PROVIDED WITH SUCH STRUCTURE, AND METHOD FOR SHUTTERING THE CONTAINER |
JPH09254999A (en) * | 1996-03-21 | 1997-09-30 | Seisan Nipponsha Kk | Synthetic resin bag body with check valve |
-
2000
- 2000-06-22 FR FR0008041A patent/FR2810640B1/en not_active Expired - Fee Related
-
2001
- 2001-06-20 ES ES01947549T patent/ES2264446T3/en not_active Expired - Lifetime
- 2001-06-20 DK DK01947549T patent/DK1296876T3/en active
- 2001-06-20 AT AT01947549T patent/ATE320974T1/en not_active IP Right Cessation
- 2001-06-20 DE DE60118192T patent/DE60118192T2/en not_active Expired - Fee Related
- 2001-06-20 JP JP2002503609A patent/JP2003535778A/en not_active Abandoned
- 2001-06-20 PT PT01947549T patent/PT1296876E/en unknown
- 2001-06-20 US US10/312,318 patent/US20040022459A1/en not_active Abandoned
- 2001-06-20 EP EP01947549A patent/EP1296876B1/en not_active Expired - Lifetime
- 2001-06-20 WO PCT/FR2001/001935 patent/WO2001098159A1/en active IP Right Grant
-
2008
- 2008-01-17 US US12/015,909 patent/US20080124007A1/en not_active Abandoned
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2799314A (en) * | 1951-09-07 | 1957-07-16 | Dreyer Andre | Leak-proof containers for liquids |
US3380646A (en) * | 1962-11-14 | 1968-04-30 | Leon Doyen | Container of plastic material and method of producing same |
US3282412A (en) * | 1963-11-06 | 1966-11-01 | Wayne V Rodgers | Valved mixing container or package |
US3430842A (en) * | 1966-09-22 | 1969-03-04 | Gennosuke Yamaguchi | Valved bag |
US3806025A (en) * | 1970-10-19 | 1974-04-23 | T Marshall | Stemming bag |
US4557377A (en) * | 1982-10-16 | 1985-12-10 | Johnsen & Jorgensen Jaypak Limited | Mixing bag and bag making apparatus |
US6481889B2 (en) * | 1994-03-03 | 2002-11-19 | Walk Pak Holding N.V. | Sealed enclosure, method for the manufacture thereof, and method of packaging a beverage in said enclosure |
US6371643B2 (en) * | 1999-06-02 | 2002-04-16 | S. C. Johnson Home Storage, Inc. | Multi-Layered freezer storage bag |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2537669A1 (en) * | 2011-06-22 | 2012-12-26 | Jenton International Limited | Method of manufacturing a valve bag |
US9272480B2 (en) | 2011-06-22 | 2016-03-01 | Jenton International Limited | Method of manufacturing a valve bag |
Also Published As
Publication number | Publication date |
---|---|
US20040022459A1 (en) | 2004-02-05 |
ATE320974T1 (en) | 2006-04-15 |
FR2810640A1 (en) | 2001-12-28 |
DE60118192T2 (en) | 2007-03-08 |
JP2003535778A (en) | 2003-12-02 |
DE60118192D1 (en) | 2006-05-11 |
DK1296876T3 (en) | 2006-07-31 |
EP1296876B1 (en) | 2006-03-22 |
EP1296876A1 (en) | 2003-04-02 |
FR2810640B1 (en) | 2003-05-30 |
PT1296876E (en) | 2006-08-31 |
ES2264446T3 (en) | 2007-01-01 |
WO2001098159A1 (en) | 2001-12-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |