EP1642839A1 - Sachet multiparois avec une fermeture à glissière - Google Patents
Sachet multiparois avec une fermeture à glissière Download PDFInfo
- Publication number
- EP1642839A1 EP1642839A1 EP05256150A EP05256150A EP1642839A1 EP 1642839 A1 EP1642839 A1 EP 1642839A1 EP 05256150 A EP05256150 A EP 05256150A EP 05256150 A EP05256150 A EP 05256150A EP 1642839 A1 EP1642839 A1 EP 1642839A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- profile
- package
- closure
- panel
- bag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
- B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
- B65D33/2516—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor comprising tamper-indicating means, e.g. located within the fastener
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
- B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
- B65D33/2541—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor characterised by the slide fastener, e.g. adapted to interlock with a sheet between the interlocking members having sections of particular shape
Definitions
- the present invention relates to a multi-wall bag or sack. More specifically, the present invention relates to a multi-wall bag that includes a reclosable profile across the open mouth of the bag such that the profile can be used to reclose the bag after initial opening.
- multi-wall bags or sacks are used in many packaging applications, often for containing a large supply of food product.
- One common example of a multi-wall bag application is in the storage and packaging of pet foods, and specifically dog food.
- a multi-wall sack is often used for storing large quantities of pet food, such as prepackaged bags that include seventeen pounds and greater of dog food.
- multi-wall bags are formed from a laminated stock of material.
- the stock of material includes an inner plastic liner, one or more layers of craft paper and an outer face sheet that typically includes product information.
- the multi-layer stock sheet is processed into a tubular shape such that the inner plastic layer lines the internal area of the tube that will become the bag interior.
- gussets are formed along each side of the bag to allow the bag to expand upon filling. After the gussets have been formed, a bottom or top seal is formed and the food product is filled into the bag through the unsealed end.
- a closure flap is used to seal the contents of the bag.
- a tear string is inserted behind the closure flap such that the tear string can be used to initially open the bag.
- the open mouth of the bag cannot be resealed other than by folding the bag over on top of itself as is conventionally known.
- the present invention relates to a multi-wall bag that includes a reclosable profile closure extending across the open mouth of the package such that the bag can be reclosed after initial opening.
- a multi-wall package comprising:
- the package further comprises at least one tear member positioned between one or more of the group consisting of: (i) said first profile and said top panel; and (ii) said second profile and said bottom panel.
- the bottom panel includes a closure flap extending past the edge of top panel, wherein the closure flap is attached to the top panel to entrap the slider device between the outer layer of the top panel and the inside layer of the closure flap when the package is in a sealed condition.
- the sealing flange of the first profile is coupled to the sealing flange of the second profile.
- the package further comprises a tear member positioned between the second profile and the inner layer of the bottom panel, wherein the tear member can be used to separate the closure flap from the bottom panel.
- the package further comprises a tear member integrally formed with the profile closure, wherein the tear member can be used to separate the closure flap from the bottom panel.
- the package further comprises a first side edge and a second side edge, wherein the profile closure extends past the first side edge and the second side edge.
- the first profile is joined to the second profile to define a first stop area and a second stop area, wherein the first stop area is formed on the portion of the closure profile extending past the first side edge of the package and the second stop area is formed on the portion of the closure profile extending past the second side edge of the package.
- the top panel, the bottom panel and the pair of side panels are integrally formed with each other.
- the package further comprises the top panel, the bottom panel (24) and the pair of side panels are integrally formed with each other.
- the inner layer of the top panel, the bottom panel and each side panel is plastic.
- the outer layer of the top panel, the bottom panel and each side panel is formed from paper.
- the outer layer of the top panel, the bottom panel and each side panel is formed from paper.
- the multi-wall bag includes a top panel, a bottom panel and a pair of side panels that joins the top and bottom panels.
- the multi-wall bag is formed using conventional bag forming techniques.
- the top panel, bottom panel and side panels are each formed from a multi-layer structure that includes at least an inner layer and at least an outer layer.
- the multi-wall structure includes one or more intermediate layers formed from a paper material, while the inner layer is formed from a plastic material.
- a profile closure is positioned along the open mouth of the bag between the top panel and the bottom panel.
- the profile closure extends through each of the side panels that join the top and bottom panels such that the profile closure extends past both a first side edge of the package and a second side edge of the package.
- the profile closure is a conventional item that includes a pair of mating profiles that can be selectively engaged and disengaged.
- the profile closure includes a slider device that is mounted to the profile closure in a conventional manner.
- the slider device is operatively movable along the profile closure to selectively engage and disengage the first and second profiles.
- Each of the first and second profiles includes a sealing flange.
- the sealing flange of the first profile is attached to the top panel of the bag while the sealing flange of the second profile is attached to the bottom panel of the bag. In this manner, the profile closure is attached across the open mouth of the multi-wall bag.
- a closure flap formed on the bottom panel of the package is folded over the open mouth of the package and attached to the top panel.
- the closure flap is a portion of the bottom panel that extends past the outermost edge of the top panel such that the closure flap can be folded over the open mouth and attached to the top panel.
- the multi-wall bag includes a tear member that is positioned between the profile closure and one of the top and bottom panels.
- the tear member is positioned between the sealing flange of a second profile and the bottom panel of the multi-wall bag.
- the tear member can be integrally extruded with the profile closure. Once the bag is in its closed, sealed condition, the tear member can be used to initially open the bag by tearing the portion of the closure flap positioned above the tear member.
- the first and second profiles are sealed to each other at each end of the bag to define a first stop area and a second stop area.
- the first and second stop areas prevent the slider from traveling past the outer ends of the profile closure and becoming separated from the profile closure.
- both the first stop area and the second stop area are formed on the portions of the closure profile that extend past the first and second side edges of the bag, respectively.
- the bottom end of the package is left open for filling of product into the open interior of the bag. Once the package has been filled with material, the bottom end of the package is sealed and the filled package can be sold.
- a multi-wall bag that includes a profile closure that allows the multi-wall bag to be reclosed after initial opening.
- the multi-wall bag 12 is formed using an upstream bag formation process that results in the bag 12 having an open bottom end and an open mouth.
- the bag 12 is formed from a tube of material and processed to include a first side edge 18 and an opposite, second side edge 20.
- the bags 12 are formed at a bag forming facility and the individual bags stacked onto a pallet and shipped onto a second location for filling and sealing. Once the bag 12 has been filled with a product, the open bottom end is sealed and the product is ready for shipment and sale to a customer.
- the multi-wall bag 12 includes a top panel 22 and a bottom panel 24.
- the top and bottom panels 22, 24 are joined to each other by a first side panel and a second side panel.
- the top panel 22, bottom panel 24 and pair of side panels are formed from a continuous sheet of base material that is folded and cut into the configuration shown in Figure 1.
- the first and second side panels form a folded gusset such that the sides of the open bag interior can expand as product is loaded into the bag interior.
- both the top panel 22 and the bottom panel 24 are formed from a supply of material that includes a multi-wall cross-section, as illustrated.
- the top and bottom panels 22, 24 include three distinct layers. However, it is contemplated that the top and bottom panels 22, 24 could have only two layers or have many more layers, such as four or five. Since the top panel 22 and the bottom panel 24 are formed from the same material, the two elements have a common cross-sectional appearance, as illustrated.
- the top panel 22 includes an inner layer 46 and an outer layer 48.
- the inner layer 46 is a plastic liner that is typically formed from conventional plastic material, such as polyethylene or polypropylene.
- the plastic inner layer 46 is either directly joined to the outer layer 48 or is joined to another intermediate layer 50, as shown in Figure 2.
- the intermediate layer 50 is formed from craft paper, which is typically inexpensive and formed from recycled fiber.
- the outer layer 48 is a face sheet also formed from a paper material that has a glossy or smooth outer surface 52. The outer surface 52 allows graphics and other information to be printed onto the outer surface 52.
- the intermediate layer 50 is a single layer of craft paper. However, it is contemplated by the inventors that the intermediate layer 50 could have multiple layers of craft paper, depending upon the thickness and strength required for the multi-wall bag.
- the bottom panel 24 includes a closure flap 54 that extends past the top edge 56 of the top panel 22.
- the closure flap 54 extends to an outer edge 58 and may include less than all of the layers of the stock material used to form the multi-wall bag.
- the closure flap 54 includes only the outer layer 48 and the intermediate layer 50.
- the plastic inner layer 46 terminates at a location generally in line with the top edge 56 of the top panel 22.
- the open mouth of the multi-wall bag 12 receives a profile closure 10 that allows the bag to be repeatedly opened and closed as desired.
- the profile closure 10 includes a first profile 68 and a second profile 70.
- the first and second profiles 68, 70 are configured to releasably mate with each other in a conventional manner.
- the first profile 68 includes a male closure element while the second profile 70 includes a female closure element.
- the profile closure 10 includes a slider 66 such that movement of the slider 66 along the length of the profile closure separates the male and female profiles when the slider is moved in a first direction and re-engage the male and female profiles when the slider is moved in a second, opposite direction.
- the first profile 68 includes a first sealing flange 76 while the second profile 70 includes a second sealing flange 78.
- a tamper evident membrane 80 extends between the first and second sealing flanges 76, 78.
- the tamper evident membrane includes a line of weakness such that upon initial opening of the profile closure 10, the tamper evident membrane 80 ruptures along the line of weakness.
- a first end 82 of the tamper evident membrane 80 is attached to the first sealing flange 76, while a second end 84 is attached to the second sealing flange 78.
- first and second sealing flanges 76, 78 could be co-extruded with each other and include a line of weakness.
- the sealing flange of one of the profiles 68, 70 could be extended and attached to the other of the profiles 68, 70.
- the tamper evident membrane 80 prevents food products contained within the bag interior from passing between the first and second sealing flanges 76, 78 and contacting the closure elements.
- both the first sealing flange 76 and the second sealing flange 78 include a sealant layer that aid in bonding the first and second sealing flanges 78, 80 to the respective inner layers 46 of the top panel 22 and the bottom panel 24.
- a tear member 98 is moved into position between the second sealing flange 78 and the bottom panel 24, as illustrated by arrow 100.
- the tear member 98 is an extruded plastic bead.
- the tear member 98 could be a string, plastic tape or any other structure having sufficient strength to open the bag after it is closed.
- the tear member 98 could be integrally formed with the profile closure 10.
- the tear member 98 could be extruded with one of the first and second sealing flanges 76, 78.
- the tear member 98 is positioned between an outer surface 102 of the second sealing flange 78 and the intermediate layer 50 of the closure flap 54.
- the movement of the tear member 98 in the direction illustrated by arrow 100 is limited by the seal between the second sealing flange 78 and the plastic inner layer 46 of the bottom panel 24.
- the first closure profile 68 is bonded to the second closure profile 70 to prevent the slider device 66 from traveling past the outer edges of the profile closure 10.
- the seal between the first profile 68 and the second profile 70 provides end stops for the movement of the slider 66.
- a profile tab 108 extends past each of the side edges 18, 20 of the multi-wall bag 12.
- the profile tabs 108 provide a visual indication that the profile closure 10 is included in the bag 12 and include the stop areas for the slider.
- the tear member 98 also extends past the side edges 18, 20 to provide a location for the user to grasp the tear member and open the bag in the manner to be discussed below.
- the closure flap 54 is folded upward as illustrated by arrow 112 in Figures 3 and 4.
- the top edge 56 of the top panel 22 is folded over such that the slider 66 is positioned between the closure flap 54 and the outer surface 52 of the top panel 22.
- the closure flap 54 is sealed to the outer surface 52 of the top panel by a pair of sealing members 114, as best shown in Figure 5.
- the sealing members apply pressure to an adhesive layer between the closure flap 54 and the top panel 22 to create a bond between the closure flap 54 and the top panel 22.
- the profile closure 10 including the slider 66 is enclosed and entrapped between the closure flap 54 and the top panel 22.
- the slider 66 is completely enclosed and protected from damage during handling of the multi-wall bag 12.
- the slider device 66 Since the slider device 66 is enclosed and protected by the closure flap 54, the slider device 66 will not be damaged or knocked off of the profile closure 10 during handling of the multi-wall bag 12 after the bag has been filled with product. For example, in a typical application in which the bag is filled with 50-60 pounds of dog food, the stacking and unstacking of a supply of bags would otherwise result in the slider device 66 being dislodged from the profile closure during handling of the bags after the bags are filled with product. In accordance with the present invention, the slider device 66 is enclosed and protected.
- the bag is transferred for downstream processing, which typically includes stacking and shipment.
- the bottom end 14 of each bag 12 remains open while the top end of the bag includes the profile closure 10 and is sealed by the closure flap 54.
- the bags are loaded through the open bottom end 14. Once the bag has been loaded, the bottom end 14 is sealed and the product can be shipped to a consumer.
- the tear member 98 can be used to initially open the bag by pulling the tear member 98 as shown by arrow 114.
- the tear member 98 tears through both the intermediate layer 50 and the outer layer 48 of the closure flap 54.
- the profile closure 10 including the slider 66, can be removed from between the portion of the closure flap 54 that remains attached to the top panel 22. Once removed, the profile closure 10 extends past the top edge of the bag and allows the slider 66 to separate and reengage the first and second profiles 76, 78.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bag Frames (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/956,395 US20060072859A1 (en) | 2004-09-30 | 2004-09-30 | Multi-wall bag including slider actuated reclosable zipper |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1642839A1 true EP1642839A1 (fr) | 2006-04-05 |
EP1642839B1 EP1642839B1 (fr) | 2007-09-19 |
Family
ID=35406234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05256150A Expired - Fee Related EP1642839B1 (fr) | 2004-09-30 | 2005-09-30 | Sachet multiparois avec une fermeture à glissière |
Country Status (3)
Country | Link |
---|---|
US (1) | US20060072859A1 (fr) |
EP (1) | EP1642839B1 (fr) |
DE (1) | DE602005002514T2 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008134145A1 (fr) * | 2007-04-27 | 2008-11-06 | Illinois Tool Works Inc. | Fermeture à glissière avec éléments de rabat pour un emballage refermable |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7506487B2 (en) * | 2005-09-21 | 2009-03-24 | Zip Pack Ip Ag | Method for applying a reclosable seal to a container |
US20070082158A1 (en) * | 2005-10-06 | 2007-04-12 | Coating Excellence International | Composite film bag for packaging bulk products |
US7819583B2 (en) * | 2005-11-04 | 2010-10-26 | Graphic Packaging International, Inc. | Bag structures and methods of assembling the same |
US20080056622A1 (en) * | 2006-08-18 | 2008-03-06 | Andrew Austreng | Resealable package with tamper-evident structure and method for making same |
US8142077B2 (en) * | 2008-04-16 | 2012-03-27 | Graphic Packaging International, Inc. | Bag structures and methods of assembling the same |
US20090263048A1 (en) * | 2008-04-16 | 2009-10-22 | Iannelli Ii Michael Louis | Bag Structures And Methods Of Assembling The Same |
US20100051152A1 (en) * | 2008-09-04 | 2010-03-04 | Calva International, LLC DBA CleverWraps, LLC | Disposable protector for electronic devices |
US8104961B2 (en) * | 2009-03-24 | 2012-01-31 | Coating Excellence International Llc | Bag and zipper assembly with secured side gussets |
US20100310195A1 (en) * | 2009-06-05 | 2010-12-09 | Gateway Packaging Company | Layered bag with re-sealable closure assembly |
US9034444B2 (en) * | 2011-05-30 | 2015-05-19 | Basf Se | Paper and cardboard packaging with barrier coating of a polymer mixture |
US10106297B2 (en) | 2016-12-29 | 2018-10-23 | Inteplast Group Corporation | Reclosable bag with header |
US9511911B1 (en) * | 2016-01-29 | 2016-12-06 | Inteplast Group Corporation | Reclosable bag with header |
USD812488S1 (en) | 2016-01-29 | 2018-03-13 | Inteplast Group Corporation | Reclosable bag with tearable header |
NL2018192B1 (en) * | 2017-01-18 | 2018-07-26 | Daklapack Europe B V | Shipping envelope and method |
WO2018191211A1 (fr) * | 2017-04-13 | 2018-10-18 | Alvin Widitora | Sac refermable et inviolable permettant la collecte de matériaux |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0450741A1 (fr) * | 1990-04-03 | 1991-10-09 | Colgate-Palmolive Company | Fermeture pour sac |
WO2001053158A2 (fr) * | 2000-01-18 | 2001-07-26 | Reynolds Consumer Products, Inc. | Emballage refermable comportant un dispositif coulissant et un element inviolable |
EP1132311A2 (fr) * | 2000-02-28 | 2001-09-12 | Reynolds Consumer Products, Inc. | Emballage refermable avec fermeture à glissière et structure d'inviolabilité et procédés de fabrication |
US20030002753A1 (en) * | 1998-06-04 | 2003-01-02 | Stolmeier Robert C. | Scored tamper evident fastener tape |
US20040058039A1 (en) * | 1999-05-11 | 2004-03-25 | Aaron Strand | Resealable bag for filling with food product(s) and method |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3807626A (en) * | 1972-03-20 | 1974-04-30 | St Regis Paper Co | Gusseted pinch bottom breakaway pouch bag |
EP0031129B1 (fr) * | 1979-12-21 | 1985-02-13 | Icoma Packtechnik GmbH | Procédé de soudage des couches intérieures de sacs en papier à plusieurs couches |
US4620320A (en) * | 1984-12-20 | 1986-10-28 | Kcl Corporation | Substantially leakproof zipper closure for bags and method |
US5442837A (en) * | 1994-06-20 | 1995-08-22 | Mobil Oil Corporation | Integrated end stops for zipper slider |
US5662420A (en) * | 1995-04-12 | 1997-09-02 | Astro-Valcour, Incorporated | Cushioned macerated paper dispatch package |
US20020094137A1 (en) * | 2001-01-16 | 2002-07-18 | Schneider John H. | Tamper evident resealable packaging |
US6390676B1 (en) * | 2001-05-15 | 2002-05-21 | Honeywell International Inc. | Reclosable package using straight tear film and process for manufacture |
US6830377B2 (en) * | 2002-05-30 | 2004-12-14 | Illinois Tool Works Inc. | Reclosable packaging with gas barrier incorporated in zipper |
US6979482B2 (en) * | 2002-11-08 | 2005-12-27 | Exopack-Technology, Llc | Multiwall bag with zipper and fin |
-
2004
- 2004-09-30 US US10/956,395 patent/US20060072859A1/en not_active Abandoned
-
2005
- 2005-09-30 DE DE602005002514T patent/DE602005002514T2/de not_active Expired - Fee Related
- 2005-09-30 EP EP05256150A patent/EP1642839B1/fr not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0450741A1 (fr) * | 1990-04-03 | 1991-10-09 | Colgate-Palmolive Company | Fermeture pour sac |
US20030002753A1 (en) * | 1998-06-04 | 2003-01-02 | Stolmeier Robert C. | Scored tamper evident fastener tape |
US20040058039A1 (en) * | 1999-05-11 | 2004-03-25 | Aaron Strand | Resealable bag for filling with food product(s) and method |
WO2001053158A2 (fr) * | 2000-01-18 | 2001-07-26 | Reynolds Consumer Products, Inc. | Emballage refermable comportant un dispositif coulissant et un element inviolable |
EP1132311A2 (fr) * | 2000-02-28 | 2001-09-12 | Reynolds Consumer Products, Inc. | Emballage refermable avec fermeture à glissière et structure d'inviolabilité et procédés de fabrication |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008134145A1 (fr) * | 2007-04-27 | 2008-11-06 | Illinois Tool Works Inc. | Fermeture à glissière avec éléments de rabat pour un emballage refermable |
US7866011B2 (en) | 2007-04-27 | 2011-01-11 | Illinois Tool Works Inc. | Zipper with fold over elements for reclosable package |
Also Published As
Publication number | Publication date |
---|---|
DE602005002514T2 (de) | 2008-01-31 |
DE602005002514D1 (de) | 2007-10-31 |
EP1642839B1 (fr) | 2007-09-19 |
US20060072859A1 (en) | 2006-04-06 |
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