EP0994772A1 - Verfahren zum herstellen von beuteln mit durch einen schieber betätigten verschlussprofilen - Google Patents
Verfahren zum herstellen von beuteln mit durch einen schieber betätigten verschlussprofilenInfo
- Publication number
- EP0994772A1 EP0994772A1 EP99916982A EP99916982A EP0994772A1 EP 0994772 A1 EP0994772 A1 EP 0994772A1 EP 99916982 A EP99916982 A EP 99916982A EP 99916982 A EP99916982 A EP 99916982A EP 0994772 A1 EP0994772 A1 EP 0994772A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- closure
- profiles
- assembly
- closure profiles
- film
- 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
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
- B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
- B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
- B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
-
- 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
- B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
- B65B61/18—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements
- B65B61/188—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements by applying or incorporating profile-strips, e.g. for reclosable bags
-
- 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
- B31B70/813—Applying closures
- B31B70/8131—Making bags having interengaging closure elements
- B31B70/8132—Applying the closure elements in the machine direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S493/00—Manufacturing container or tube from paper; or other manufacturing from a sheet or web
- Y10S493/916—Pliable container
- Y10S493/927—Reclosable
Definitions
- the present invention relates to the field of bags comprising complementary closure profiles designed to allow a series of successive openings / closings by a user.
- the present invention relates to the field of sachets whose closure profiles are controlled upon opening, or respectively upon closing by a slider.
- the cursor facilitates the release of the profiles for the opening of the bags, or respectively the engagement of the profiles for the closure of said bags. It suffices for this to move the cursor in translation along the profiles.
- these provisions are not entirely satisfactory compared to bags equipped with cursor on the one hand the production of such ribs complicates the production installation
- such ribs do not allow location and actuation as easy as a slider
- it can be seen that nowadays sachets equipped with slider-actuated closure profiles have not experienced very significant industrial development.
- the present invention now aims to provide new means for the automatic production of sachets having closure / opening profiles actuated by slider.
- This object is achieved according to the present invention by means of an automatic process for manufacturing sachets, characterized in that it comprises the steps consisting in:
- - supplying at least one film suitable for forming the walls of bags - supplying a closure assembly comprising a support sheet formed in a W shape, constituting on the one hand an internal U-shaped tamper-evident band provided on its internal surfaces opposite respectively of the closure profiles, and on the other hand of the external lateral webs which extend beyond the closure profiles and of the internal U-shaped band, the closure assembly also being pre-equipped with a series of sliders for actuating the closure profiles distributed over the length of the closure assembly supplied, and - fix the closure assembly thus formed, by means of the external lateral support webs on the film forming the wall of the bag
- the method according to the present invention overcomes the drawbacks of the known prior means
- the present invention makes it possible to guarantee the initial tightness of the sachets and makes it possible to easily control and visualize any opening or attempted untimely opening of these sachets.
- the present invention makes it possible to locate the latter outside the fixing zone (preferably materialized by welding jaws) of the closure assembly on the film.
- the present invention also makes it possible to deliver the sachets, either in the open state or in the closed state, according to the request.
- the present invention also relates to an automatic bag making machine for implementing the aforementioned method, as well as the bags thus obtained and the closure assembly for this method.
- FIG. 1 attached shows a schematic sectional view of a closure assembly according to the present invention
- FIG. 2 shows an automatic machine for forming, filling and closing sachets according to the present invention
- the present invention relates to the manufacture on an automatic machine of resealable bags with closure profiles actuated by a cursor.
- the present invention can be applied both to automatic machines for manufacturing bags with horizontal scrolling and to machines for automatic manufacturing of bags with vertical scrolling. Furthermore, the present invention applies equally to machines for automatically manufacturing sachets with filling during a step subsequent to manufacture and possibly geographically separated from the place of manufacture, as to machines for manufacturing, filling and closing, in a single place and in successive stages
- the present invention applies preferably, but not hmitatively, to automatic manufacturing, filling and closing of sachets machines (generally called “form, fill and seal” in English), and very advantageously of such vertical scrolling machines
- these machines generally comprise a forming neck 100 which receives a film 110 in the planar state from an unwinder 112 and which provides the output film 110 shaped into a tube, a filling chute 120 which opens into this forming neck 100 and consequently into said tube, means 130 for longitudinal welding to close the tube longitudinally and means 140 capable of sequentially generating a first transverse weld before a product is introduced into the tube through the filler neck 120, then a second transverse weld when the product has been introduced into the tube, to close a package around the latter
- the automatic bag forming machine furthermore receives a closure assembly 10 which comprises, as illustrated in FIG. 1, a support sheet 20 shaped as W, constituting d on the one hand, an inviolability band 22 in internal U provided on its internal surfaces 23, 24 respectively with complementary closure profiles 30, 40, and on the other hand external lateral webs 26, 28 which extend over the beyond closure profiles 30, 40 and of the internal U-shaped strip 22, the closure assembly 10 being moreover pre-equipped with a series of sliders 50 for actuating the closure profiles 30, 40 distributed over the length of l 'closing assembly routed.
- the closure profiles 30, 40 can be the subject of numerous variant embodiments. They are preferably respectively complementary male / female profiles. Their structure will not be described in more detail below.
- each slider is composed, as seen in FIG. 1, of a sole 52 which carries on one face two lateral wings 54, 56 and a central separation rib 58 which defines in combination with the lateral wings 54, 56 two converging / diverging corridors in the direction considered, intended to receive one of the sections 30, 40 respectively.
- the structure of the sliders which may be used in the context of the invention will not be described in more detail below.
- the pitch of the sliders 50 on the closure assembly 10 is equal to the size of the bags to be formed. As shown diagrammatically in FIG. 2, this closure assembly 10 is preferably routed longitudinally and fixed (preferably by welding) by means of these external lateral webs 26, 28 on the free edges of the film 110 shaped as tube.
- the external support webs 26, 28 are very preferably welded to the film 110, at their free section 26a, 28a, located beyond the central U-shaped strip 22.
- the external webs 26, 28 are welded to the film 110 using the above-mentioned means 130 ensuring the longitudinal welding of the film.
- the closure assembly 10 is sectioned to the size of the bag by the conventional cutting means, preferably associated with the transverse welding means 140 ensuring the individualization of the bags.
- the closure profiles 30, 40 are in engagement (closed position) during attachment to the film 110 This arrangement guarantees precise and correct positioning of the closure assembly 10 on the film 110
- the profiles 30, 40 can be separated later, by moving the sliders 50 using an appropriate tool, if necessary
- pre-welds 60 with constant pitch of connection between the complementary closure sections 30, 40 before routing on the automatic bag forming machine.
- the pitch of these pre-welds 60 is equal to the size of the bags
- the closure profiles 30, 40 are engaged (closed position) between the cursor 50 and one of the pre-welds 60 and released (open position) between the cursor 50 and the other pre -weld 60 adjacent
- pre-welds 60 are not always essential.
- the implementations which avoid the use of such pre-welds have the advantage of avoiding any need to locate the position of the closure assembly. relative to the film
- a line of weakness or pre-cutting can be provided on the central U-shaped strip 22, for example in the middle position thereof. Such a pre-cutting line is shown diagrammatically under the reference 25 on figure 1
- the profile support sheet 20, as well as the film 110 used in the context of the present invention can be the subject of numerous variant embodiments. It can be a simple film made of thermoplastic material, see even a composite thermoplastic film, it that is to say formed by juxtaposition of different layers of different nature, or of complex film formed for example of plastic coated paper or metallized film
- the present invention is not limited to the particular embodiments which have just been described but extends to any variant in accordance with its spirit
- a longitudinal routing of the closure assembly 10 that is to say a displacement of the closure assembly 10 in the same direction as the film 110.
- Those skilled in the art know many machines for conveying transverse closure profiles. For this reason, this arrangement will not be described in more detail later.
- the closure assembly In the case of conveying the closure profiles transversely to the direction of the film 110, it is possible either to route the closure assembly in the form of an individualized section pre-cut to the size of the bags, or in the form of a continuous strip cut in situ to the size of the bag.
- the sachets are produced using two films respectively constituting the two main walls of the sachet.
- the complementary closure profiles 30, 40 can be attached, for example glued or welded, to the support sheet 20 or joined in the mass, for example from molding, with this support sheet 20.
- the width of the external lateral webs 26, 28 can be of the order of 25 to 40 mm.
- the external lateral webs 26, 28 can be welded over their entire width to the film of the bags. In this case, the sections referenced 26a, 28a in FIG. 1 are merged with the webs 26 and 28.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Making Paper Articles (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
- Bag Frames (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Supplying Of Containers To The Packaging Station (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9805681A FR2778362B1 (fr) | 1998-05-05 | 1998-05-05 | Procede de realisation de sachets comportant des profiles de fermeture actionnes par curseur |
FR9805681 | 1998-05-05 | ||
PCT/FR1999/001053 WO1999056947A1 (fr) | 1998-05-05 | 1999-05-04 | Procede de realisation de sachets comportant des profiles de fermeture actionnes par curseur |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0994772A1 true EP0994772A1 (de) | 2000-04-26 |
EP0994772B1 EP0994772B1 (de) | 2002-07-31 |
Family
ID=9526053
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99916982A Expired - Lifetime EP0994772B1 (de) | 1998-05-05 | 1999-05-04 | Verfahren zum herstellen von beuteln mit durch einen schieber betätigten verschlussprofilen |
Country Status (14)
Country | Link |
---|---|
US (3) | US6477821B1 (de) |
EP (1) | EP0994772B1 (de) |
AT (1) | ATE221453T1 (de) |
AU (1) | AU744039B2 (de) |
BR (1) | BR9906419A (de) |
CA (1) | CA2295995C (de) |
DE (1) | DE69902332T2 (de) |
DK (1) | DK0994772T3 (de) |
ES (1) | ES2179645T3 (de) |
FR (1) | FR2778362B1 (de) |
NZ (1) | NZ502162A (de) |
PT (1) | PT994772E (de) |
WO (1) | WO1999056947A1 (de) |
ZA (1) | ZA200000092B (de) |
Cited By (1)
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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 |
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US5400565A (en) | 1992-06-29 | 1995-03-28 | Pacmac, Inc. | Vertical form, fill and seal packaging machine for making recloseable product filled bags |
US5557907A (en) | 1995-02-24 | 1996-09-24 | Illinois Tool Works Inc. | Transverse zipper system |
AU3972297A (en) * | 1996-08-07 | 1998-02-25 | Tenneco Packaging Inc. | Reclosable package with tamper evident feature |
US5669715A (en) * | 1996-08-16 | 1997-09-23 | Tenneco Packaging | Tamper-evident reclosable plastic bag with slider |
US6257763B1 (en) * | 1997-04-08 | 2001-07-10 | Huntsman Kcl Corporation | Tamper evident zipper slider |
US5956924A (en) * | 1997-11-07 | 1999-09-28 | Rcl Corporation | Method and apparatus for placing a product in a flexible recloseable container |
US5911508A (en) * | 1997-11-10 | 1999-06-15 | Dobreski; David V. | Vented reclosable bag |
FR2773679B1 (fr) * | 1998-01-16 | 2000-04-07 | Flexico France Sarl | Sachet comprenant des profiles de fermeture complementaires actionnes par curseur, ainsi que procede, machine et film pour sa production |
FR2775953B1 (fr) * | 1998-03-10 | 2000-06-02 | Flexico France Sarl | Procede et machine de formation de sachets avec fermeture a profiles transversaux |
FR2778362B1 (fr) * | 1998-05-05 | 2000-07-28 | Flexico France Sarl | Procede de realisation de sachets comportant des profiles de fermeture actionnes par curseur |
FR2785259B1 (fr) * | 1998-11-02 | 2001-12-07 | Flexico France Sarl | Sachet comprenant des profiles de fermeture complementaires actionnes par curseur |
-
1998
- 1998-05-05 FR FR9805681A patent/FR2778362B1/fr not_active Expired - Lifetime
-
1999
- 1999-05-04 DE DE69902332T patent/DE69902332T2/de not_active Expired - Lifetime
- 1999-05-04 WO PCT/FR1999/001053 patent/WO1999056947A1/fr active IP Right Grant
- 1999-05-04 PT PT99916982T patent/PT994772E/pt unknown
- 1999-05-04 US US09/446,911 patent/US6477821B1/en not_active Expired - Fee Related
- 1999-05-04 ES ES99916982T patent/ES2179645T3/es not_active Expired - Lifetime
- 1999-05-04 EP EP99916982A patent/EP0994772B1/de not_active Expired - Lifetime
- 1999-05-04 AU AU35272/99A patent/AU744039B2/en not_active Ceased
- 1999-05-04 AT AT99916982T patent/ATE221453T1/de not_active IP Right Cessation
- 1999-05-04 CA CA002295995A patent/CA2295995C/fr not_active Expired - Fee Related
- 1999-05-04 DK DK99916982T patent/DK0994772T3/da active
- 1999-05-04 NZ NZ502162A patent/NZ502162A/xx not_active IP Right Cessation
- 1999-05-04 BR BR9906419-7A patent/BR9906419A/pt not_active IP Right Cessation
-
2000
- 2000-01-12 ZA ZA200000092A patent/ZA200000092B/xx unknown
-
2001
- 2001-08-21 US US09/933,041 patent/US20020134046A1/en not_active Abandoned
- 2001-08-21 US US09/934,329 patent/US6666580B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
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See references of WO9956947A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
---|---|
NZ502162A (en) | 2001-03-30 |
PT994772E (pt) | 2002-11-29 |
ES2179645T3 (es) | 2003-01-16 |
AU3527299A (en) | 1999-11-23 |
FR2778362A1 (fr) | 1999-11-12 |
DK0994772T3 (da) | 2002-12-02 |
CA2295995C (fr) | 2008-01-15 |
US6477821B1 (en) | 2002-11-12 |
DE69902332D1 (de) | 2002-09-05 |
CA2295995A1 (fr) | 1999-11-11 |
US6666580B2 (en) | 2003-12-23 |
AU744039B2 (en) | 2002-02-14 |
US20020150313A1 (en) | 2002-10-17 |
WO1999056947A1 (fr) | 1999-11-11 |
ZA200000092B (en) | 2000-07-12 |
BR9906419A (pt) | 2000-07-11 |
ATE221453T1 (de) | 2002-08-15 |
US20020134046A1 (en) | 2002-09-26 |
DE69902332T2 (de) | 2003-02-13 |
EP0994772B1 (de) | 2002-07-31 |
FR2778362B1 (fr) | 2000-07-28 |
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