EP1400446A2 - Emballage refermable avec glissière et curseur - Google Patents

Emballage refermable avec glissière et curseur Download PDF

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Publication number
EP1400446A2
EP1400446A2 EP03254795A EP03254795A EP1400446A2 EP 1400446 A2 EP1400446 A2 EP 1400446A2 EP 03254795 A EP03254795 A EP 03254795A EP 03254795 A EP03254795 A EP 03254795A EP 1400446 A2 EP1400446 A2 EP 1400446A2
Authority
EP
European Patent Office
Prior art keywords
package
reclosable zipper
zipper
packages
slider
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.)
Withdrawn
Application number
EP03254795A
Other languages
German (de)
English (en)
Other versions
EP1400446A3 (fr
Inventor
Steven Ausnit
John H. Schneider
Joel Johnson
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.)
Illinois Tool Works Inc
Original Assignee
Illinois Tool Works Inc
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 Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Publication of EP1400446A2 publication Critical patent/EP1400446A2/fr
Publication of EP1400446A3 publication Critical patent/EP1400446A3/fr
Withdrawn legal-status Critical Current

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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
    • 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
    • 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
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
    • B65B9/04—Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material
    • 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
    • B65B9/06—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it
    • B65B9/08—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it in a web folded and sealed transversely to form pockets which are subsequently filled and then closed by sealing
    • 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
    • B65B9/06—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it
    • B65B9/08—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it in a web folded and sealed transversely to form pockets which are subsequently filled and then closed by sealing
    • B65B9/093—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it in a web folded and sealed transversely to form pockets which are subsequently filled and then closed by sealing the web having intermittent motion
    • 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
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • 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

Definitions

  • the present invention relates to the field of reclosable packaging. More particularly, the present invention relates to methods of making reclosable packages having slide zippers on horizontal form-fill-seal (HFFS) machines.
  • HFFS horizontal form-fill-seal
  • the reclosable packaging art is virtually, if not totally, silent as it relates to the manufacture of slide-zippered packages on HFFS machines. Because of the facility which is provided by slide zippers to consumers of reclosable packages and because of the large volume of reclosable packages made on HFFS machines today, it is highly desirable and advantageous to combine the two technologies so that slide-zippered reclosable packages can be made on HFFS machines.
  • the object of the present invention is to provide methods of making slide-zippered reclosable packages on HFFS machines.
  • a chain of packages is formed, filled and sealed on an HFFS machine or the like.
  • a pair of opposing film extensions are provided on each package.
  • a reclosable zipper is inserted between the film extensions of the leading package and sealed thereto.
  • a slider is then inserted on to the reclosable zipper of the leading package and the completed leading package is cut from the chain.
  • packages having reclosable zippers are output from an HFFS machine or the like, either individually or in a chain. A slider is then inserted on to the zipper of each package in turn.
  • packages are formed, filled and sealed on an HFFS machine or the like.
  • a reclosable zipper is sealed to each package and then a slider is inserted on to the zipper.
  • packages are formed, filled and sealed on a horizontal form-vertical fill-seal (HVFS) machine or the like.
  • HVFS horizontal form-vertical fill-seal
  • a reclosable zipper is sealed to each package and a slider is inserted on to each zipper, either before or after zipper sealing.
  • figure 1 shows how slide-zippered packages can be made on a typical thermoform HFFS machine 10.
  • Forming film 12 is indexed off a coil 14 of the same in a package forming direction. Downstream of the forming film coil 14 at a forming station I5 the forming film 12 is thermoformed, using techniques well-known to those of ordinary skill in the reclosable packaging art, into a chain 13 of advancing box-like bottom portions or trays 16 of what will ultimately be completed packages. Product may then be loaded into the bottom portions 16 at a loading station 17 if desired.
  • top film 18 is indexed off a coil 20 of the same in the package forming direction, laid over the advancing bottom portions 16 and perimeterly sealed thereto at four locations 22, 24; 26, 28 at a sealing station 21 to form a sealed package 29, as shown in figure 2.
  • the seal at the package opening 22 takes the form of a peel seal so that the consumer can easily gain access to the contents of the package.
  • the bottom portion 16 and top film 18 are each provided with film extensions 30, 32 which extend beyond the peel seal 22 on one side of the package 29.
  • the film extensions 30, 32 are not sealed to each other and may readily be spread apart from each other.
  • the package chain 13 enters a zipper and slider insertion and attaching station 34.
  • the film extensions 30, 32 of the leading package are spread apart from each other and interlocked reclosable zipper 36 supplied from a coil 38 of the same is fed between the film extensions 30, 32, as shown in figure 3, which is a cross-sectional view of the package chain and zipper and slider insertion and attaching station 34.
  • the zipper is comprised of two interlocking closure elements 39, 41 and flanges 40, 42 extending therefrom which are sealed to the film extensions 30, 32, such as by a pair of seal bars (not shown).
  • the zipper 36 is stomped at each end of the package by a stomping apparatus (not shown) to provide end stops for the slider and to ensure that the ends of the zipper 36 do not come apart during use.
  • a slider 44 is then removed from a coil 46 thereof and inserted on to the zipper 36 by a slider insertion apparatus (not shown).
  • the slider and zipper are designed such that the slider will open the zipper as the slider is moved along the zipper in an opening direction towards an opening end of the zipper and close the zipper as the slider is moved along the zipper in a closing direction towards a closing end of the zipper. It is preferable during slider insertion that the slider be inserted at the closing end of the zipper since the zipper is initially interlocked. The slider will thus be positioned for normal functioning. If the slider is inserted at a location other than at the closing end, it will be necessary to actuate the slider by moving it to the closing end, after which the slider will be in position for normal functioning. Such actuation may be done on the HFFS machine, or it may be done by the initial package user.
  • the leading package is cross-cut from the remainder of the chain 13 by any one of many commonly known cutting apparatuses (not shown) to remove a completed package 48 having a slide zipper.
  • the package chain 13 may be a single chain as shown in figure 3, or, alternatively, may be a multiple chain, such as the double chain 50 shown in cross-section in figure 4.
  • the process of making the packages is virtually identical to that described above, except that the zippers and sliders are attached to the opposite sides 47, 49 of the package chain simultaneously, as shown in figure 4, thus requiring two zipper and slider insertion and attaching stations 34.
  • a second cut is needed in the machine direction along the central axis 51 of the chain to remove the side-by-side packages from one another.
  • thermoform HFFS machines but may be practised on any type of package making machine where the packages are formed with film extensions 30, 32 of the type discussed above.
  • Figures 5 and 6 depict a second embodiment of the present invention.
  • Zippered packages 52 either in a chain 54 as shown in figure 5 or individually as shown in figure 6, are output from an HFFS machine (not shown), or any other type of bag making machine.
  • the package chain 54 is indexed into a slider insertion station 56.
  • the ends of the zipper 36 on the leading package in the chain 54 are stomped as discussed above.
  • a slider 44 is removed from the slider coil 46 and inserted on to the zipper 36.
  • a completed package 58 have a slide zipper is cross-cut from the chain by a cutting apparatus (not shown).
  • the packages 52 are individual and not chained together.
  • the individual packages 52 are transported one by one into the slider insertion station 56 by a conveyor belt 60 or the like, where the ends of the zipper 36 on the leading package are stomped (unless the stomping was done during package formation) and a slider 44 is removed from the slider coil 46 and inserted on to the zipper 36 to provide a completed slide-zippered package 58.
  • figure 7 shows a thermoform HFFS machine 62 configured to make slide-zippered packages.
  • the forming film 12 is indexed off a coil 14 of the same. Downstream of the forming film coil 14 at a forming station 15 the forming film 12 is thermoformed into a chain 13 of boxlike bottom portions or trays 16 of what will ultimately be completed packages. Product may then be loaded into the bottom portions 16 at the loading station 17 if desired.
  • Each bottom portion 16 is provided with a lip 64 on one side thereof, as shown in figure 8, which is a cross-sectional view of the chain 13.
  • the reclosable zipper 36 is indexed off a coil 38 of the same and laid over the lips 64 of the bottom portions 16.
  • the lower zipper flange 42 is then sealed to the lips 64 by a sealing mechanism, such as a heater bar 63, at a sealing station 68.
  • a sealing mechanism such as a heater bar 63
  • the heater bar 63 is positioned below the lips 64, as shown in figure 7a, which is a cross-sectional view of zipper attachment to the package lips.
  • an insulating and guide plate 67 positioned between the zipper flanges. The insulating and guide plate 67 provides a surface for the heater bar to react against and removes any danger of sealing through the zipper flanges, thereby eliminating the need for accurate heat control.
  • the insulating and guide plate 67 also serves to guide and position the zipper onto the package lips to ensure accurate sealing.
  • a slider 44 is then removed from the slider coil 46 and inserted on to the zipper 36 of the instant bottom portion 16 at an insertion station 70.
  • the ends of the zipper are stomped.
  • the zipper ends could have been stomped together earlier, either on the machine or pre-stomped prior to winding on the supply coil, and the zipper indexed to the bottom portion.
  • the top film 18 is then indexed off the top film coil 20, laid over the formed bottoms 16 and the attached zipper 36 and sealed to the formed bottoms 16 and the upper flange 40 of the zipper 36 around the perimeter of the package at a second sealing station 72.
  • the seal at the mouth of the package may take the form of a peel seal to provide easy access to the contents of the package.
  • the completed packages 48 are cross-cut from the chain at a cutting station 74. If a double chain is used, as shown in figure 8, then the side-by-side packages must also be cut from each other in the machine direction.
  • a triple package chain is shown in figures 10 and 11.
  • the top film 18 is pre-perforated so that it can be split into three sections and laid over each of the bottom portions 16. This splitting is achieved by a separator assembly 78 having three L shaped separator plates 78a, 78b, 78c.
  • the vertical portions of the separator plates 78a, 78b, 78c split the pre-perforated top film 18 into three portions 18a, 18b, 18c and guide the three top film portions as they are laid over their corresponding bottom portions 16. Additionally, the horizontal portions of the separator plates interact with the sealing mechanism to ensure that there is no seal through, eliminating the need for accurate heat control.
  • thermoform HFFS machines As indicated above, the present invention is not limited to thermoform HFFS machines, but may be practised on any type of HFFS machine and on any type of bag making machine for that matter.
  • Figure 12 shows how slide zippered packages can be made on a horizontal form-vertical fill-seal machine (HFVS) 80 in accordance with a fourth embodiment of the present invention.
  • HFVS horizontal form-vertical fill-seal machine
  • Package film 82 is paid off a roll 84 of the same. Downstream a pull roller 98 is provided for driving the film 82 through the machine.
  • a folder plow 86 positioned downstream of the film roll 84 folds the package film 82 about a bottom crease 83 to form opposing package walls 116, 118.
  • Interlocked reclosable zipper 36 is then paid off a roll 38 of the same and fed between the advancing package walls.
  • Sliders 44 are inserted on to the reclosable zipper 36 prior to the folder plow 86 at package width intervals at what will be the closing end of the zipper by a slider insertion mechanism at the slider insertion station 88.
  • the sliders 44 are supplied from the slider coil 46.
  • first sealing station 90 the zipper flanges 40,42 are sealed to the opposing package walls. Then at stomping stations 92, the ends of the zipper 36 for a given package are stomped. At a second sealing station 94, the folded film and zipper are cross-sealed to form discrete packages.
  • a slider opening Station 96 where the slider is held in position as the zipper and film are advanced when the pull rollers 98 are activated. As the zipper moves through the slider, it is opened. Alternatively, the slider itself may be moved. Then, at a cutting station 100 the individual packages 102 are cut from one another. The separated packages 102 are then taken to the filling station 104 where they are filled. Filling may occur by means of a filling turret 106 or the packages may be filled in-line, both of which techniques are well-known to those of ordinary skill in the art. After a package is filled, the slider 44 is moved backed to the closing end of the zipper. Finally, a tamper evident 108 seal may optionally be provided above the zipper 36. Completed Slide-zippered packages 110 are then output from the machine.
  • a first variation of the fourth embodiment is shown in figure 13.
  • the sliders are attached downstream of the folder plow 86, rather than upstream of the folder plow 86.
  • the sliders 44 are attached to the zippers 36 at their opening ends, rather than at their closing ends as above.
  • This opening action is carried out at an opening station 97 by a suitable mechanism provided for the specific zipper construction. After filling at the filling station 104, the slider is moved to the closing end of the zipper.
  • a second variation of the fourth embodiment of the present invention is shown in figure 14. Under certain circumstances it may be desirable to eliminate the step of opening the zipper for filling. This can be done by sealing one zipper flange to one side of the folded film at the first sealing station 90 prior to filling, as shown in figure 15, rather than sealing both flanges to the film as done previously.
  • one flange 40 of the zipper is sealed to one wall 116 of the folded film 82 a distance below the top 120.
  • the film 82 protrudes above the zipper to form a pair of opposing ears 122.
  • a J-shaped insulator plate 124 is inserted between the zipper flanges 40, 42 and between the unsealed zipper flange 42 and the other package wall 118, as shown in figure 15.
  • one of the seal bars 112 is kept hot and the other 114 is deactivated.
  • the packages are cross-sealed from the bottom of the film 92 up to but not including the zipper.
  • the zipper is bent to one side, as shown in figure 16. In this manner, filing may proceed unobstructed, and there is no danger of contaminating the zipper.
  • the unsealed zipper flange 42 is sealed to the other side of the package and the ears 122 are sealed to each other by a pair of seal bars 126 with a perforation seal and a peel seal above the zipper 36, as shown in figure 17.
  • the ends of the zipper are cross-sealed together and end stops for the slider are created.
  • the above indicated zipper cross-seals extend below the zipper flanges into the package side seals, but not above and beyond the zipper profiles.
  • a third variation of the fourth embodiment of the present invention is shown in figure 18.
  • the zipper 36 and slider 44 are attached to the bottom 128 of the package, rather than at the top 120.
  • a perforator 130 perforates the film 82 below the slider 44 to form a pair of perforations 132 (alternatively, a single perforation I 32a may be provided).
  • the zipper is then sealed to the bottom of the package by sealing the zipper flanges to the film beyond the perforation lines, as shown in figure 19.
  • a peel seal 136 may be provided between the zipper flanges in order to maintain the integrity of the packages.
  • the packages are completed as discussed above, except that they are filled from the opposing end to which the zipper has been attached. Further, if a bottom gusset is required a V shaped film can be introduced between the package walls 116 and 118 and sealed into place. During use, the packages are inverted so that the zipper and slider are at the top and the perforated portion 134 is torn away from the package to gain access to the slider.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Bag Frames (AREA)
EP03254795A 2002-08-12 2003-07-31 Emballage refermable avec glissière et curseur Withdrawn EP1400446A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US217048 2001-05-04
US10/217,048 US20020184858A1 (en) 1999-05-21 2002-08-12 Methods of making slide-zippered reclosable packages on horizontal form-fill-seal machines

Publications (2)

Publication Number Publication Date
EP1400446A2 true EP1400446A2 (fr) 2004-03-24
EP1400446A3 EP1400446A3 (fr) 2005-03-23

Family

ID=31946268

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03254795A Withdrawn EP1400446A3 (fr) 2002-08-12 2003-07-31 Emballage refermable avec glissière et curseur

Country Status (2)

Country Link
US (1) US20020184858A1 (fr)
EP (1) EP1400446A3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2399845B1 (fr) * 2010-06-24 2016-04-20 Norio Goto Procédé de production d'un récipient de conditionnement de forme tétraèdre

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US6477820B1 (en) 1999-07-29 2002-11-12 Kraft Foods Holdings, Inc. Method of making a package with a zipper closure
US6688079B2 (en) 2001-04-18 2004-02-10 Kraft Foods Holdings, Inc. Method for manufacturing flexible packages having slide closures
US6688080B2 (en) 2001-04-18 2004-02-10 Kraft Foods Holdings, Inc. Method for manufacturing flexible packages having slide closures
US6769229B2 (en) 2001-08-30 2004-08-03 Kraft Foods Holdings, Inc. Method for manufacturing flexible packages having slide closures
US6675558B2 (en) 2001-04-18 2004-01-13 Kraft Foods Holdings, Inc. Method for manufacturing flexible packages having slide closures
US8122687B2 (en) 2003-07-31 2012-02-28 Kraft Foods Global Brands Llc Method of making flexible packages having slide closures
US11214397B2 (en) 2013-04-15 2022-01-04 Illinois Tool Works Inc. Machine direction, transverse direction and angled pre-applied zippers in the angled and transverse direction
US11891202B2 (en) * 2018-05-18 2024-02-06 Gea Food Solutions Germany Gmbh Unwinding a film roll in a packaging machine
DE102022102310A1 (de) * 2022-02-01 2023-08-03 Multivac Sepp Haggenmüller Se & Co. Kg Entstapelsystem für kartonzuschnitte

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US6138439A (en) * 1999-05-21 2000-10-31 Illinois Tool Works Inc. Methods of making slide-zippered reclosable packages on horizontal form-fill-seal machines
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2399845B1 (fr) * 2010-06-24 2016-04-20 Norio Goto Procédé de production d'un récipient de conditionnement de forme tétraèdre

Also Published As

Publication number Publication date
EP1400446A3 (fr) 2005-03-23
US20020184858A1 (en) 2002-12-12

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