WO2003018417A1 - Dispositif de fermeture inviolable a rainures - Google Patents

Dispositif de fermeture inviolable a rainures Download PDF

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Publication number
WO2003018417A1
WO2003018417A1 PCT/US2002/027174 US0227174W WO03018417A1 WO 2003018417 A1 WO2003018417 A1 WO 2003018417A1 US 0227174 W US0227174 W US 0227174W WO 03018417 A1 WO03018417 A1 WO 03018417A1
Authority
WO
WIPO (PCT)
Prior art keywords
sheet
fastener
bag
fastener strip
pattern
Prior art date
Application number
PCT/US2002/027174
Other languages
English (en)
Inventor
Robert C. Stolmeier
Paul F. Edelman
Original Assignee
Pliant Corporation
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 Pliant Corporation filed Critical Pliant Corporation
Priority to PL368132A priority Critical patent/PL201394B1/pl
Priority to CA002458501A priority patent/CA2458501A1/fr
Priority to KR10-2004-7002744A priority patent/KR20040039306A/ko
Priority to JP2003523097A priority patent/JP2005500883A/ja
Priority to BRPI0212395-9A priority patent/BR0212395B1/pt
Priority to NZ531366A priority patent/NZ531366A/en
Priority to MXPA04001653A priority patent/MXPA04001653A/es
Priority to EP02768720A priority patent/EP1427642A4/fr
Publication of WO2003018417A1 publication Critical patent/WO2003018417A1/fr
Priority to NO20041219A priority patent/NO20041219L/no

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/24—End- or aperture-closing arrangements or devices using self-locking integral or attached closure elements, e.g. flaps
    • 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
    • B65D33/2533—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 the slide fastener being located between the product compartment and the tamper indicating means
    • 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
    • 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
    • B65D2203/00—Decoration means, markings, information elements, contents indicators
    • B65D2203/12—Audible, olfactory or visual signalling means

Definitions

  • the present invention generally relates to reclosable bags, and more specifically, but not exclusively, concerns sealed, tamper evident reclosable bags.
  • the Herrington U.S. Patent 5,007,143 shows a zipper profile which is opened and closed by a slider that is grasped by the user for opening and closing the bag. It is desirable in certain situations to provide tamper evidence to the user of the reclosable bag.
  • the Hustad et al. U.S. Patent 5,456,928 is an example of a patent disclosing a reclosable bag for use with food products which has tamper evident means incorporated therein.
  • a slider zipper reclosable bag is used to contain a product that is being marketed and it is also desirable to provide tamper evidence.
  • Certain types of items, such as perishable foods need to be hermetically sealed within bags so as to prevent contamination.
  • Such bags typically incorporate some sort of tamper evident feature. Tear lines on the bags, for example, have been used as one type of tamper evident indicator. At the tear line, the walls of the bag are weakened to allow for tearing of the bag, but the walls are not punctured along the tear line so as to maintain a hermetic seal.
  • the tear line is thermally treated in order to weaken the material along the tear line.
  • one technique uses a laser to heat and weaken layers of plastic sheets in the bag as the laser traverses along the tear line.
  • laser scoring equipment can be too expensive for some vendors.
  • process control tolerances are required during laser scoring.
  • One embodiment of the invention includes a plastic film bag having a pair of side walls which define a mouth of the bag.
  • a reclosable fastener extending along the mouth of the bag and secured to the side walls.
  • the fastener includes a pair of flexible fastening strips secured to the side walls and including reclosable interlocking rib and groove profile elements on the respective strips.
  • a slider straddles the fastener for opening and closing the fastener.
  • the slider includes a depending separator extending between the flexible plastic strips.
  • a sheet of plastic film closing the mouth of the bag which sheet is capable of rupture to provide access and tamper evidence.
  • each of the pair of side walls of the plastic film bag has an upper region that forms a sheet of plastic film disposed between the side walls for closing the mouth of the bag.
  • one of the pair of side walls of the plastic film bag is secured to the inner face of one of the pair of flexible plastic strips and the other of the pair of side walls is secured to the inner face of the other of the pair of flexible plastic strips.
  • the sheet preferably forms at least one curved region. The sheet allows the flexible plastic strips to separate from each other a greater distance when the rib and groove profile elements are in a non-interlocked configuration.
  • one of the pair of side walls is secured to an outer face of one of the pair of flexible plastic strips and the other of the pair of side walls is secured to an outer face of the other of the pair of flexible plastic strips.
  • a further embodiment concerns a reclosable fastener tape for a tamper evident hermetically sealed bag.
  • the fastener tape includes a first fastener strip and a second fastener strip.
  • the first fastener strip and the second fastener strip have mating profiles constructed and arranged to mate with one another in a reclosable fashion.
  • a sheet connects the first fastener strip to the second fastener strip.
  • the sheet has an unpunctured tear line formed between the first fastener strip and the second fastener strip for providing a tamper evident hermetic seal when the fastener tape is sealed with the bag.
  • a reclosable hermetically sealed bag in another embodiment, includes a fastener tape.
  • the fastener tape has a first fastener strip and a second fastener strip each including profile elements for mating with one another in a reclosable fashion.
  • a sheet seals the first fastener strip to the second fastener strip.
  • the sheet has at least one laser scored tear line formed between the first fastener strip and the second fastener strip for providing a tamper evident seal.
  • a bag portion is sealed to the fastener tape to form a sealed cavity.
  • a further embodiment concerns a method for making a tamper evident seal for a recloseable bag.
  • first and second interlockable fastener strips are provided, and a first sheet of flexible film with first and second opposing parallel edges is provided.
  • a first pattern of weakening is scored on the first sheet spaced apart from the first edge.
  • a second pattern of weakening is scored on the first sheet spaced apart from the second edge.
  • the first sheet of flexible film is attached to the first fastener strip after scoring the first pattern.
  • the assembly of fastener strips and first sheet is provided for subsequent attachment to a second sheet of flexible film.
  • first and second interlockable fastener strips are provided, and a sheet of flexible film with first and second opposing parallel edges is provided.
  • a first pattern of weakening on the sheet is scored on the sheet.
  • a second pattern of weakening on the sheet is scored on the sheet.
  • the sheet of flexible film is attached to the first fastener strip after scoring the first pattern. The sheet is folded to form a bottom of the bag.
  • FIG. 1 is a front elevational view of a reclosable plastic bag including the tamper evident zipper slider of the present invention.
  • FIG. 2 is a fragmentary perspective view of a portion of the structure of FIG. 1.
  • FIG. 2A is a view similar to FIG. 2 of an alternative embodiment of the present invention.
  • FIG. 3 is a vertical section taken along the line 3-3 of FIG. 2 in the direction of the arrows.
  • FIG. 4 is a vertical section taken along the line 4-4 of FIG. 2 in the direction of the arrows.
  • FIG. 5 is a bottom plan view of the slider of the present invention.
  • FIG. 6 is a section taken along the line 6-6 of FIG. 5 in the direction of the arrows.
  • FIG. 7 is a vertical section similar to FIG. 3 of an alternative embodiment of the present invention.
  • FIG. 7A is a front elevation similar to FIG. 1 of the alternative embodiment of the present invention.
  • FIG. 7B is a view similar to HG. 7 of an alternative embodiment of the present invention.
  • FIG. 7C is a view similar to FIG. 7A of a further alternative embodiment of the present invention.
  • FIG. 8 is a vertical section taken through the zipper slider and the bag of FIG. 1.
  • FIG. 8A is a view similar to FIG. 8 of an alternative embodiment of the present invention.
  • FIG. 9 is an enlarged fragmentary view similar to FIG. 8.
  • FIG. 9A is an enlarged fragmentary view similar to FIG. 8A.
  • FIG. 10 is a view similar to FIG. 8 of an alternative embodiment of the present invention.
  • FIG. 10A is a view similar to FIG. 10 of a further alternative embodiment of the present invention.
  • FIG. 11 is a fragmentary perspective sectional view of an alternative embodiment of the present invention.
  • FIG. 12 is a view similar to FIG. 11 of a further alternative embodiment of the present invention.
  • FIG. 13 is a view similar to FIG. 12 of another alternative embodiment of the present invention.
  • FIG. 14 is a view similar to FIG. 13 of a further alternative embodiment of the present invention.
  • FIG. 15 is a view similar to FIG. 14 of another alternative embodiment of the present invention.
  • FIG. 16 is a view similar to FIG. 15 of a further alternative embodiment of the present invention.
  • FIG. 17 is a front elevational view of a reclosable flexible bag including a tamper evident zipper slider according to one embodiment of the present invention.
  • FIG. 18 is a cross sectional view of the reclosable bag of FIG. 17 as taken along line 18-18 of HG. 17.
  • FIG. 19 is a cross sectional, perspective view of a reclosable bag according to another embodiment of the present invention.
  • FIG. 20 is a front elevational view of a reclosable plastic bag including a tamper evident zipper slider according to another embodiment of the present invention.
  • FIG. 21A is a cross sectional view of the reclosable bag of FIG. 20 as taken along line 21 -21 of HG. 20.
  • FIG. 21B is a cross sectional view of a reclosable bag according to another embodiment of the present invention.
  • FIG. 22A is a plan, unfolded view of the flexible sheet of the bag of FIG. 21A.
  • FIG. 22B is a plan, unfolded view of the flexible sheet of the bag of FIG.
  • FIG. 23 is front elevational view of a hermetically sealed, reclosable fastener tape according to another embodiment of the present invention.
  • FIG. 24 is a plan, unfolded view of a flexible sheet used in the FIG. 23 fastener tape.
  • FIG. 25 is a cross sectional view of the FIG. 23 fastener tape as taken along line XXV-XXV of HG. 23.
  • FIG. 26 a cross sectional view of the FIG. 23 fastener tape attached to the side walls of a bag.
  • FIG. 27 is a cross sectional view of a reclosable bag incorporating a hermetically sealed, tamper evident fastener tape according to another embodiment of the present invention.
  • FIG. 28 is a front elevational view of a hermetically sealed, tamper evident fastener tape according to another embodiment of the present invention.
  • FIG. 29 is a plan, unfolded view of the flexible sheet incorporated in the FIG. 28 fastener tape.
  • FIG. 30 is a cross sectional view of the FIG. 28 fastener tape as taken along line XXX-XXX of HG. 28.
  • FIG. 31 is a cross sectional view of a reclosable bag incorporating the FIG. 28 fastener tape.
  • FIG. 32 is a cross sectional view of a reclosable bag incorporating a hermetically sealed, tamper evident fastener tape according to further embodiment of the present invention.
  • FIG. 33 is a schematic process diagram illustrating techniques for manufacturing reclosable bags according to other embodiments of the present invention.
  • FIG. 34 is a schematic process diagram illustrating techniques for manufacturing fastener tapes according to other embodiments of the present invention. DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • a plastic bag 11 which consists of a pair of side walls 12 and 13 which are connected together at the bottom and at the sideward edges 16 and 17 of the bag.
  • the connection at the bottom 15 may be merely by folding a single sheet of plastic to produce the two side walls 12 and 13 or may be actual melting and cutting or adhering the two side walls together by adhesive.
  • the side edges 16 and 17 are frequently formed by melting the two side walls together and then by cutting apart from the adjacent side walls of further bags being produced.
  • the two side walls 12 and 13 define a mouth 20 of the bag along which a reclosable fastener 21 extends.
  • the fastener includes a pair of flexible plastic strips 22 and 25 which are secured to the side walls 12 and 13 and include reclosable interlocking rib and groove profile elements 26, 27, 30, and 31.
  • the reclosable fastener further includes a flange 32 which functions to close over the top of the fastener when it is in closed position.
  • a slider 35 is arranged to straddle the fastener 21 for opening and closing the fastener.
  • the slider 35 has a fixed separator member 36 which extends down between the profile elements 26 and 30 for the purpose of separating them and opening the fastener when the slider is moved rightwardly as viewed in FIG. 2.
  • FIG. 3 shows the slider section taken along the line 3-3 of FIG. 2 and shows the profile elements in open condition.
  • the slider When the slider is moved leftwardly as viewed in FIG. 2 the slider functions to close the profile elements and to connect them as shown in FIG. 4. The connection occurs by reason of the walls 37 of the slider squeezing the profile elements together.
  • the embodiment depicted in FIG. 2A is identical to that shown in FIG.
  • the reclosable fastener has formed homogeneously and coextensively therewith a sheet of plastic 40.
  • This sheet of plastic 40 may be extruded along with the fastener elements 22 and 25 but has a somewhat less thick construction than the strips 22 and 25 and particularly the web portion thereof 41 and 42.
  • the embodiment shown in FIG. 8A is identical to that shown in FIG. 8 with the exception that side walls 12 and 13 are attached to flexible plastic strips 22 and 25, respectively, such that interference of the side walls with the slider (not shown) is minimized. It is intended that the present bag be used frequently in situations where the bag is filled at the factory with a product and then is marketed to the consumer.
  • FIG. 10 An alternative embodiment of the reclosable fastener of FIG. 8 is shown in FIG. 10 and involves a tamper evidence closure 50 that extends between the walls or webs 41' and 42' of the reclosable fastener elements 22' and 25'.
  • the construction of FIG. 10 is extruded in a similar fashion to the construction of FIG. 8.
  • the embodiment shown in FIG. 10A is identical to that shown in FIG. 10 with the exception that side walls 12 and 13 are attached to flexible plastic strips 22' and 25', respectively, such that interference of the side walls with the slider (not shown) is minimized.
  • FIGS. 7 and 7A Still another alternative embodiment of the invention is illustrated in FIGS. 7 and 7A.
  • the reclosable closure and slider are identical to those above described except that the sheet 40 is eliminated.
  • the tamper evident slider of FIG. 7 has a sheet 60 which forms a hood that covers and surrounds the reclosable closure 70 and the slider 71 of the bag of FIGS. 7 and 7A.
  • the embodiment of FIG. 7 will be provided with perforations 72 which facilitate removing the tamper evident sheet 60. If desired, perforations may also be provided in the embodiment of FIG. 8 such as for example at the location 61.
  • the embodiment depicted in FIG. 7B is identical to that shown in FIG.
  • FIG. 7C is identical to that shown in FIG. 7A with the exception that the length of sheet 60 is decreased so that its edges are coextensive with the sideward edges 16' and 17' of the bag.
  • the side wall 113 is secured to outer face 81 of flexible plastic strip 125 at region 102 and side wall 112 is secured to outer face 80 of flexible plastic strip 122 at a similar location (not shown).
  • the side walls may be secured to the flexible plastic strips by methods known in the art, including heat sealing and use of adhesives.
  • each of the pair of side walls 112 and 113 folds over itself as seen at upper regions 90 and 91.
  • Film 100 typically extends along planes parallel to a plane passing between inner face 82 and outer face 80 of flexible plastic strip 122 and a plane passing between inner face 83 and outer face 81 of flexible plastic strip 125.
  • film 100 may also extend along planes oblique or a plane perpendicular to a plane passing between inner face 82 and outer face 80 of flexible plastic strip 122 and a plane passing between inner face 83 and outer face 81 of flexible plastic strip 125 in this and the other embodiments discussed.
  • Film 100 preferably has at least one curved region 101.
  • the length of side walls 112 and 113 that form film 100 is typically that which allows the flexible plastic strips to separate from each other a greater distance when the rib and groove profile elements 126, 127, 130 and 131 are in a non-interlocked configuration and can be determined by one skilled in the art. In this way, film 100 acts as a gusset, thus allowing easier access to the film of plastic film bag 111.
  • the sheet of plastic film 100 preferably has a plurality of perforations 175 for facilitating its rupture.
  • the plurality of perforations 175 is preferably located in curved region 101 but may be located at other places on film 100 as one skilled in the art would appreciate. Alternatively, film 100 may be ruptured by cutting.
  • FIG. 12 The embodiment depicted in FIG. 12 is identical to that shown in FIG. 11 with the exception that curved region 101 of film 100 is replaced by a double layer of film joined together and defining a seal 130 that extends along the width of film 100 and film 100 extends along planes oblique to a plane passing between inner face 82 and outer face 80 of flexible plastic strip 122 and a plane passing between inner face 83 and outer face 81 of flexible plastic strip 125.
  • Seal 130 may involve the two ends of film being secured together or may involve collapsing and sealing curved region 101.
  • Base 131 of seal 130 may be weakened as a result of formation of the seal and may allow one to grasp and tear the seal to open bag 111.
  • the ability to tear seal 130 to rupture film 100 will depend on the film thickness and the extent to which formation of seal 130 has weakened base 131 of the seal or the area around the base of the seal.
  • a plurality of perforations 175 may be placed near or along base 131 of seal 130 to aid in rupturing the film.
  • Film 100 may also be ruptured by cutting.
  • side wall 212 is secured to inner face 82 of flexible plastic strip 122 and side wall 213 is secured to inner face 83 of flexible plastic strip 125.
  • Film 200 is further disposed between the flexible plastic strips 122 and 125.
  • Film 200 preferably has at least one curved region.
  • film 200 has three curved regions 201a-201c and includes a U-shaped region 202 that functions as a gusset as described above.
  • Film 200 and slider 35 (not shown in this figure) will not interfere with each other in this and similar embodiments (e.g., FIGS. 14 and 15) and the necessity of sealing two layers of film 200 is avoided.
  • the sheet of plastic film 200 preferably has a plurality of perforations 275 for facilitating its rupture.
  • the plurality of perforations 275 is preferably located in any of the curved regions 201a-201c but may be located at other places on film 200 as one skilled in the art would appreciate.
  • film 200 may be ruptured by cutting.
  • FIG. 14 is similar to that shown in FIG. 13 except that only one curved region 301 is present.
  • Side walls 212 and 213 are secured to inner faces 82 and 83 of flexible plastic strips 122 and 125, respectively, in a region of the side walls closer to profile element 127, upper regions 290 and 291 of side walls 212 and 213, respectively.
  • This configuration allows for minimal spreading of fastener 121. That is, the flexible plastic strips of fastener 121 minimally spread from each other when the rib and groove profile elements 126, 127, 130 and 131 are in a non-interlocked configuration. Moreover, less excess film is present in this embodiment, thus minimizing interference of the film with the fastener.
  • the sheet of plastic film 300 preferably has a plurality of perforations 375 for facilitating its rupture.
  • the plurality of perforations 375 is preferably located at curved region 301 but may be located at other places on film 300 as one skilled in the art would appreciate.
  • film 300 may be ruptured by cutting.
  • FIG. 15 is similar to that shown in FIG. 14 with the exception that the region of side walls 212 and 213 that are secured is more distant from profile element 127 than the region of side walls secured in the embodiment shown in FIG. 14. Specifically, region 203 of side wall 212 is secured to inner face 82 of flexible plastic strip 122 and similar region (not shown) of side wall 213 is secured to inner face 83 of flexible plastic strip 125.
  • curved region 301 is replaced by a double layer of film joined together and defining a seal 230 that extends along the width of film 200. Seal 230 may involve the two ends of film being secured together or may involve collapsing and sealing curved region 301 in FIG. 14.
  • film 200 extends along planes oblique to a plane passing between inner face 82 and outer face 80 of flexible plastic strip 122 and a plane passing between inner face 83 and outer face 81 of flexible plastic strip 125.
  • base 231 of seal 230 may be weakened as a result of formation of the seal and may allow one to grasp and tear the seal to open bag 211.
  • a plurality of perforations 276 may be placed along base 231 of seal 230 to aid in rupturing the film.
  • Film 200 may also be ruptured by cutting.
  • FIG. 16 depicts a plastic film bag wherein side wall 12 is secured to outer face 80 of flexible plastic strip 122 and side wall 13 is secured to outer face 81 of flexible plastic strip 125.
  • a sheet of plastic film 400 is disposed between side walls 12 and 13 and, in this embodiment, is also disposed between the pair of flexible plastic strips 122 and 125.
  • Film 400 preferably has at least one curved region 401 and is typically secured to the pair of flexible plastic strips 122 and 125 by adhesive strips 402 and 403, respectively.
  • film 400 may be secured to the pair of flexible plastic strips by other methods known in the art, including heat sealing.
  • film 400 may have a plurality of perforations 475 for facilitating its rupture or may simply be cut through. Alternatively, depending on the strength of the adhesive used, film 400 may be manually removed for entry into the bag. It is to be noted that the sheet of flexible plastic film disposed between the side walls can have regions other than curved regions, including pleats and other forms of folds that will act as a gusset.
  • FIGS. 17 and 18 illustrate side elevational and cross sectional views, respectively, of a flexible, reclosable bag 611 according to another embodiment of the present invention.
  • NXX an "N" hundred series prefix
  • XX element number
  • Container 611 includes a sheet 600 of flexible plastic film with side edges 616 and 617 and bottom 615.
  • a reclosable fastener 621 extends across a mouth 620 at the top of bag 611.
  • Reclosable fastener 621 includes a pair of flexible plastic strips 622 and 625 which are secured at their ends to sides 616 and 617 by a pair of fused endstops 618.
  • Each side 616 and 617 includes a fused border 616' and 617', respectively, which extend from the bottom of bag 615 to endstops 618.
  • a fused zone 615' extends along the bottom edge 615 of bag 11, and fuses together the loose ends of side walls 612 and 613.
  • a slider 635 is slidably coupled to fastener strips 622 and 625, slider 635 being adapted and configured to close and open the fastener strips of mouth 621.
  • fastener strip 622 includes a pair of inwardly pointing profile elements 626 and 627.
  • Fastener strip 625 includes a more closely spaced pair of outwardly pointing profile elements 630 and 631. Sliding movement of slider 635 in a closing direction engages profile elements 630 and 631 between profile elements 626 and 627 to close bag 611.
  • side walls 612 and 613 extend upward from bottom 615 toward the outer surfaces of fastener strips 622 and 625, respectively. Each side wall folds over itself and forms a curved region 601 beneath and between fastener strips 622 and 625. Side walls 612 and 613 are fused to respective fastener strips 622 and 625 in a fused zone 602 that extends lengthwise along bag 611.
  • Curved region 601 includes a tear line 675 that extends across the length of bag 611, curved region 601 acting as a tamper evident seal. Tear line 675 can include a series of perforations, or for those embodiments in which hermeticity is required, it can include a line of weakening which does not perforate completely through the thickness of sheet 600.
  • Curved region 601 separates along line of weakening 675, allowing easy access to the contents of bag 611. Since curved region 601 extends completely to and is fused with regions 616' and 617', it is possible to achieve a hermetic tamper evident seal that extends from side to side. Opening of the tamper evident seal does not affect the integrity of any bag components that are fused together at regions 616' or 617'.
  • sheet 600 comprises a plurality of layers which are simultaneously formed together in a coextrusion process.
  • sheet 600 may be coextruded including an oxygen barrier layer 600c fabricated from a material such as ethylene vinyl alcohol (EVOH) which assists in maintaining hermeticity of the interior of bag 611.
  • film 600 may include an inner layer 600a which adheres well to itself during fusion processes, and another layer 600b which does not adhere well to itself. With this selection of layers, it is possible to create the fused areas 602 such that the folded-over side wall adheres well to itself (between adjacent layers 600a) and also to the material of the fastener strips, but which does not adhere to itself throughout curved region 601 (between adjacent layers 600b).
  • Tear line 675 may be formed by a variety of methods.
  • tear line 675 may be perforated by heat and/or mechanical means.
  • tear line 675 does not include perforations, and instead is a line of weakness which maintains hermeticity without perforations.
  • a line of weakness 675 can be fabricated using a laser which weakens one or more layers of sheet 600 as the laser traverses along its path.
  • film 600 includes one or more layers chosen to selectively absorb the particular wavelength of energy emitted by the laser, and can also include one or more layers which transmit the laser light without absorption. The absorbing layers are thereby heated more by the laser than the transmitting layers, and are thus weakened by the heating.
  • FIG. 19 illustrates a cross sectional and perspective view of a bag 711 according to another embodiment of the present invention.
  • Bag 711 is substantially the same as bag 611, except that bag 711 includes fastener strips 722' and 725' which incorporate a different orientation of profile elements 626, 627, 730 and 731.
  • fastener strips 722' and 725' which incorporate a different orientation of profile elements 626, 627, 730 and 731.
  • the various sheet, bag, and tamper evident seal configurations shown herein can be used with a variety of different reclosable fastener elements.
  • curved area 701 of film 700 can be oriented downward, as shown in FIG. 19, and can also be oriented upward as shown in FIG. 11.
  • FIGS. 20, 21 A, and 22A illustrate various aspects of a flexible, reclosable bag 811 according to another embodiment of the present invention.
  • Container 811 includes a sheet 800 of flexible plastic film with side edges 816 and 817 and folded bottom 815 (not shown).
  • a reclosable fastener 821 extends across a mouth 820 near the top of bag 811.
  • Reclosable fastener 821 includes a pair of flexible plastic strips 822 and 825 which are secured at their ends to sides 816 and 817 by a pair of fused endstops 818.
  • Each side 816 and 817 includes a fused border 816' and 817', respectively, which extend from the bottom of bag 815 to bag mouth 820.
  • a slider 835 is slidably coupled to fastener strips 822 and 825, slider 835 being adapted and configured to close and open the fastener strips of mouth 821.
  • fastener strip 822 includes a pair of profile elements 826 and 827
  • fastener strip 825 includes a pair of profile elements 830 and 831. Sliding movement of slider 835 in a closing direction engages profile elements 830 and 831 with profile elements 826 and 827 to close bag 811.
  • Sheet 800 of bag 811 is preferably folded along bottom 815, and includes fused zones 816' and 817' along sides 816 and 817, respectively, extending from bottom 815 toward mouth 820 at the top of container 811. As best seen referring to FIG.
  • sides 812 and 813 are fused to their respective fastener strips along lengthwise fused zones 802.
  • the open edges of sheet 811 extend upward past the profile elements of the fastener strips 822 and 825, forming a hooded enclosure 860 joined at the top along lengthwise fused zone 820'.
  • Hood 860 extends from fused zone 816' to 817', and preferably completely encloses the slider and fastener strips of bag 811.
  • tear line 875 comprises portions 875a, 875b, and 875c which extend from side to side of the bag, and both above and below the slider and profile elements as will be described.
  • Bag 811 includes a tear line 875a along the length of hood 860.
  • Tear line 875a extends inwardly from each fused zone 816' and 817' at a location between top most fused zone 820' and fused endstops 818.
  • a transition portion 875b of tear line 875 extends from upper portion 875a at an angle downward in hood 860 past the slider and profile elements to a central, lowest portion 875c.
  • Portion 875c extends between the bottom profile element of the fastener strips and fusion zone 802. Tear line 875 is thus a non-linear pattern of weakening, comprising a plurality of linear portions or sections which are not on a single straight path.
  • substantially linear portions 875a, 875b, and 875c have been shown and described, the present invention also contemplates those embodiments in which one or more portions or sections of the tear line are curved.
  • the user tears off the top part of hood 860.
  • Hood 860 separates along line of weakening 875, allowing easy access to slider 835 and to the contents of bag 811 along the central portion 875c of the ruptured hooded enclosure.
  • line of weakness 875a above endstop 818, it is possible to achieve a hermetic tamper evident seal that extends from side to side. Removal of the top portion of hooded enclosure 860 does not affect the integrity of various bag components that are fused together at endstop 818.
  • Tear line 875 includes a series of perforations, or for those embodiments in which hermeticity is required, a line of weakening which does not perforate completely through the thickness of sheet 800.
  • Tear line 875 may be formed by a variety of methods, as previously discussed for tear line 675.
  • tear line 875 may be perforated by heat and/or mechanical means.
  • tear line 875 is fabricated using a laser which weakens one or more layers of sheet 800 as the laser traverses along its path.
  • film 800 may comprise a plurality of layers which are simultaneously formed together in a coextrusion process, such as that previously described for sheet 600.
  • the sheet 800 of bag 811 is fabricated from a continuous sheet 803, which is shown in FIG. 22A.
  • Tear lines 875 are introduced in a preferably repetitive pattern onto continuous sheet 803 and preferably in the unfolded state. Tear lines 875 are preferably located on sheet 800 generally parallel to the edges of the sheet, and spaced apart from the edge of the sheet so as to provide an unscored region along the edge for subsequent attachment to a fastener strip and/or second sheet of film. In one embodiment, each tear line 875 is further equally spaced apart from either the fold line or center line of the sheet of film.
  • sheet 803 includes a plurality of sensor marks 877. Sensor mark 877 is sensed by a sensor such as an optical pick-up or conductivity probe.
  • a bag 811 * according to another embodiment of the present invention, which is formed from sheet 800', will now be described with reference to FIGS. 21B and 22B.
  • both tear lines 875 are formed on side 812' of the sheet 800', and no tear lines 875 are formed on side 813' of the sheet 800'.
  • the sheet 800' is folded along fold line 815 and attached to fastener strips 822 and 825 to form bag 811'.
  • edge 805 of side 813' of the sheet 800' is sealed to fastener strip 825 at fused zone 802.
  • Side 812' of the sheet 800' is sealed to fastener strip 822 at fused zone 812.2'.
  • Side 812' of the sheet 800' is folded over to form a hood 860', and due to the folding, both tear lines 875 are substantially aligned with and opposite to one another.
  • Edge 804 of the sheet is attached to fastener strip 825 at fused zone 806, thereby forming the closed bag 811'. The user gains access to bag 811' by tearing the upper half of the hood 860' along the tear lines 875.
  • fastener strips 822 and 825 are supplied on rolls 1222 and 1225, respectively.
  • fastener strips 822 and 825 are supplied together on a single roll.
  • fastener strips 822 and 825 can be supplied in other manners as would be contemplated by those skilled in the art.
  • sheet 800 is supplied from roll 1200.
  • the tear lines 875 are formed on the sheet 800 in the pattern as illustrated in FIG. 22B.
  • the now scored sheet 800 in station 1202 is attached to fastener strip 825 and folded to form the bottom 815 of the bag 811 in the manner as described above.
  • the sheet 800 is then attached to fastener strip 822 and the edges 804, 805 are sealed together at zone 820' to form the closed bag 811.
  • stations 1201, 1202 and/or 1203 can be combined together, and also that some details of the process (welding stations, guiding rollers, etc.) have not been shown for sake of clarity.
  • the scoring of the sheet in station
  • sheet 800' is supplied from roll 1200.
  • the sheet 800' is scored to form tear lines 875' in the pattern as illustrated in FIGS. 22B and as described above.
  • edge 805 of sheet 800' is sealed to fastener strip 825 at fused zone 802 in station 1202.
  • Sheet 800' is then folded to form the bottom 815 of the bag 811'.
  • side 812' of the sheet 800' is sealed to fastener strip 822 at fused zone 812.2'.
  • Side 812' of the sheet 800' is folded over to form a hood 860' such that the tear lines 875 are substantially aligned with one another.
  • Edge 804 of the sheet is attached to fastener strip 825 at fused zone 806, thereby forming the closed bag 811'. It should be appreciated that stations 1201, 1202 an/or 1203 can be combined together. In another embodiment, the scoring in station 1201 occurs after the bag is formed in stations 1202 and 1203. In some embodiments of the present invention, a slider is attached to the fastener profiles at any point in the process where the fastener strips are generally interlocked together.
  • a hermetically sealed, tamper evident fastener tape is created such that the fastener tape can be supplied to customers who do not have the systems in place to produce hermetically sealed score lines.
  • the fastener tape according to the present invention allows customers to create hermetically sealed tamper evident bags without incurring the cost of expensive equipment, such as laser scoring equipment.
  • the tape can be made for use with gusseted slider bags as disclosed above and/or with other types of hermetically sealed packaging that need tamper evident reclosable fasteners.
  • the tape includes a film layer that is pre-scored and applied to the zipper on both flanges. This tape can be rolled onto a spool and shipped to the customer for use in their facilities.
  • the customer is able to seal standard film to the tape and apply a slider to the finished package.
  • the consumer opens the zipper with the slider.
  • the customer breaks an inner, laser scored membrane by pulling the two sides of the zipper apart. After the membrane is broken the first time, it cannot be resealed.
  • the laser scored tear line is formed on an outside hood of the package. The consumer must first tear the package along the laser scored line in order to gain access to the package.
  • FIGS. 23-25 A reclosable fastener tape 921 according to one embodiment of the present invention is illustrated in FIGS. 23-25.
  • the fastener tape 921 includes a pair of fastener strips 922.
  • Fastener strips 922 and 925 are designed to mate with one another in a reclosable fashion.
  • fastener strip 922 includes a pair of inwardly pointing profile elements 926 and 927.
  • flexible fastener strip 925 includes a pair of outwardly pointing profile elements 930 and 931.
  • the outwardly pointing profile elements 930 and 931 are configured to be received between and lock with the inwardly pointing profile elements 926 and 927 in order to form a reclosable seal.
  • Both strips 922 and 925 include upper sealing members or flanges 932, which provide a clean appearance when elements 926, 927, 930 and 931 are interlocked with one another.
  • upper sealing members or flanges 932 which provide a clean appearance when elements 926, 927, 930 and 931 are interlocked with one another.
  • other types of mating profiles can be used to form the reclosable seal.
  • sheet 940 is formed from a sheet of flexible plastic that extends below fastener strips 922 and 925.
  • Sheet 940 can be attached to the fastener strips 922 and 925 in manners as generally know to those skilled in the art, such as through heat sealing and/or through adhesives, to name a few.
  • sheet 940 is attached to inner faces 982 of the fastener strips 922 and 925 at regions 902.
  • sheet 940 in other embodiments can be attached to outer faces 980 of the fastener strips 922 and 925 (FIG. 27), or sheet 940 can be integrally formed with the fastener strips 922 and 925 (FIG. 9).
  • a line of weakness or tear line 975 is formed on sheet 940, when in an unfolded state.
  • sheet 940 is not punctured along the tear line 975, but rather, sheet 940 is weakened along the tear line 975.
  • Sheet 940 along the tear line 975 can be weakened using a number techniques.
  • the tear line 975 in the illustrated embodiment is thermally weakened by laser scoring. With laser scoring, the tear line 975 is fabricated using a laser, which weakens one or more layers of sheet 940 as the laser traverses along the path for the tear line 975.
  • sheet 940 includes one or more layers chosen to selectively absorb the particular wavelength of energy emitted by the laser, and also includes one or more layers which transmit the laser light without absorption. The absorbing layers are thereby heated more by the laser than the transmitting layers, and are thus weakened by the heating.
  • Tear line 975 is able to provide a visual cue of whether or not the hermetic seal has been broken for a package that incorporates the fastener tape 921 according to the present invention.
  • the tear line 925 in the illustrated embodiment incorporates an audible cue of whether the seal has been broken.
  • the depth and/or length of individual scores of the scoring pattern are intermittently increased and decreased along the tear line 975 so that a "zipping" sound is created as the tear line
  • the tear line 975 is initially torn open. As depicted in FIG. 24, the tear line 975 preferably has high
  • the high score line area 976 has a scoring depth that is greater than the scoring depth of the low score line area 977.
  • the length of score line areas 976 and 977 can differ from one another.
  • the high score line area 976 has a length that is longer than the length of the low score line area 977.
  • the fastener tape 921 is supplied to customers that do not have the capability or equipment to form hermetically sealed tear lines for tamper evident reclosable packaging.
  • the fastener tape 921 of the present invention can be supplied to the customers in a number of forms.
  • the fastener tape 921 is formed as a continuous strip that is rolled around a roll, which is then supplied to the customer, with or without a preapplied slider.
  • the fastener tape 921 is sold as discrete units with a slider 935 already installed on the fastener tape 921.
  • ends of the fastener tape are sealed to one another at fused end stops 918 that are formed along the fastener strips 922 and 925.
  • the customer is able to attach side walls 912 and 913 to the outer faces 980 of the fastener strips 922 and 925, thereby forming a hermetically sealed bag 911.
  • Sheet 940 and the sidewalls 912, 915 form a hermetically sealed cavity 959 in which items, such as perishables, can be stored. A person gains access to the items stored in cavity 959 by tearing open sheet 940 along tear line 975.
  • sheet 940 is attached to the outer faces 980 of the fastener strips 922 and 925.
  • the customer attaches the sidewalls 912 and 913 to sheet 940 such that the sidewalls 912 and 913 span across the tear line 975.
  • the sidewalls 912 and 913 are attached proximal to regions 902.
  • the sidewalls 912 and 913 can be attached at other locations, such as being directly attached to the fastener strips 922 and 925.
  • FIGS. 28-30 A reclosable fastener tape 1021 according to another embodiment of the present invention is illustrated in FIGS. 28-30.
  • the fastener tape 1021 includes a pair of fastener strips 922 and 925 that are adapted to mate with one another in a resealable fashion.
  • a hood or sheet 1060 is connected to the outer faces 980 of the fastener strips 922 and 925 at connection regions 1020.
  • the hood 1060 spans around fastener strips 922 and 925.
  • sheet 1060 is connected by thermal fusion to a single face 980 of one of the fastener strips 922 or 925.
  • the hood 1060 has preferably unpunctured tear lines or areas of weakening 1075 in order to provide a tamper evident hermetic seal when the fastener tape 1021 is incorporated into a package.
  • the tear lines 1075 are formed through laser scoring. As depicted in FIG. 29, tear lines 1075 are formed on continuous sheet 1060, preferably with sheet 1060 in an unfolded state.
  • each tear line 1075 include portions 1075a, 1075b, and 1075c which extend from side to side along the fastener tape 1021, both above and below the slider and profile elements as will be described.
  • the tear line 1075 extends between closed or folded end 1084 of the hood 1060 and the profile elements of the fastener strips 922 and 925, as is shown in FIG. 28.
  • Transition portions 1075b of the tear line 1075 extend from portions 1075a at an angle past the profile elements to portion 1075c.
  • Portion 1075c extends between profile elements 927 and 931 of the fastener strips and connection region 1020.
  • sheet 1060 can be formed with sensor marks that direct the position of the laser along tear line 1075 in order to produce the desired tear-off pattern.
  • the fastener tape 1021 is formed as a continuous strip, which is wrapped around a roll or folded and sold to customers that produce hermetically sealed bags.
  • the fastener tape 1021 is formed as a discrete component that is sold to the customer.
  • the fastener tape 1021 includes sealed end stops 1018 along with slider 935, which is used to open and seal the fastener strips 922 and 925.
  • side walls 912 and 913 can be attached to opposite ends of the hood so as to form a hermetically sealed bag 1011 (refer to FIG. 31).
  • the customer can slide the slider 935 onto one end of the fastener strips 922 and 925 before sealing the bag 1011.
  • the user tears off the top part of hood 1060.
  • Hood 1060 separates along tear line 1075, allowing easy access to slider 935 and to the contents of bag 1011 along portion 1075c of the ruptured hooded enclosure.
  • FIG. 32 A fastener tape 1121 according to another embodiment of the present invention is illustrated in FIG. 32.
  • hood 1160 is formed from two separate sheets 1160a and 1160b that are joined together at connection zone 1184. Each sheet 1160a and 1160b has a non-perforated tear line tear line 1075 of the type described above.
  • the fastener tape 1121 is shipped to the customer with the two sheet 1160a and 1160b separate from one another.
  • This construction allows the customer to easily insert the slider 935 over the fastener strips 922 and 925, and then the customer is able to seal sheets 11060a and 1160b together. Further, in this embodiment, the customer attaches sidewalls 912 and 913 to the inner faces 82 of fastener strips 922 and 925. Techniques for manufacturing the fastener tapes 921,1021, 1121 illustrated in
  • fastener strips 922 and 925 are respectively supplied from supply rolls 1322 and 1325. It is contemplated that the fastener strips 922 and 925 can be supplied in other manners. For instance, the fastener strips 922 and 925 can be supplied together on a single roll.
  • sheet 940 is supplied from roll 1300.
  • sheet 940 can be supplied in other fashions.
  • the sheet 940 in station 1301 is scored to have a tear line 975 in the pattern illustrated in FIG. 24.
  • Sheet 940 is then folded and attached to the fastener strips 922 and 925 in station 1302 so as to form fastener tape 921.
  • the fastener tape 921 is rolled onto roll 1321 and supplied to the customers for further processing. It should be appreciated that the fastener tape can be shipped to customers in other types of containers.
  • hood 1060 is supplied from roll 1300, but it is contemplated that hood 1060 can be supplied in other manners.
  • the tear line pattern 1075 of FIG. 29 is formed on the hood 1060 in station 1301.
  • hood 1060 is attached to both fastener strips 922 and 925 at station 1302, such as by heat or ultrasonics.
  • hood 1060 is attached at station 1302 to only one of the fastener strips.
  • the assembly of fastener strips and partially attached sheet 1060 is provided to a customer for subsequent attachment to a second sheet of flexible film, the second sheet forming the side walls of the bag.
  • the fastener tape 1021 can then be shipped to the customer.
  • a slider is inserted onto the fastener strips at station 1304. With respect to the FIG. 32 fastener tape 1121, the separate sheets
  • 1160a and 1160b are scored in station 1301, and then the sheets 1160a and 1160b are attached to one another in station 1302 to form hood 1160. Further, in station 1302, the sheets 1160a and 1160b are attached to fastener strips 925 and 922, respectively. It should be appreciated that station 1301 can occur after station 1302 or can be combined with station 1302 such that the scoring and attaching occurs simultaneously. While the invention has been illustrated and described in detail in the drawings and foregoing description, the same is to be considered as illustrative and not restrictive in character, it being understood that only the preferred embodiment has been shown and described and that all changes and modifications that come within the spirit of the invention are desired to be protected.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Making Paper Articles (AREA)
  • Slide Fasteners (AREA)

Abstract

L'invention concerne un dispositif de fermeture refermable (921) comprenant un première bande de fermeture (922) et une seconde bande de fermeture (925) conçue pour entrer en prise avec la première bande de fermeture (922) de manière refermable. Une feuille (940) relie la première bande de fermeture (922) à la seconde bande de fermeture (925). Cette feuille (940) comprend une ligne de déchirure non perforée (975) formée entre la première bande de fermeture et la seconde bande de fermeture (925), d'où l'obtention d'un scellement hermétique inviolable lorsque ce dispositif assure la fermeture d'un sac.
PCT/US2002/027174 2001-08-24 2002-08-26 Dispositif de fermeture inviolable a rainures WO2003018417A1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
PL368132A PL201394B1 (pl) 2001-08-24 2002-08-26 Taśma mocująca, hermetycznie uszczelniona torebka do powtórnego zamykania zawierająca taśmę mocującą, sposób wytwarzania uszczelnienia oraz sposób wytwarzania torebki do powtórnego zamykania
CA002458501A CA2458501A1 (fr) 2001-08-24 2002-08-26 Dispositif de fermeture inviolable a rainures
KR10-2004-7002744A KR20040039306A (ko) 2001-08-24 2002-08-26 새김 가공된 용이절첩 패스너 테입
JP2003523097A JP2005500883A (ja) 2001-08-24 2002-08-26 不正操作を証明できる、スコアの付けられたファスナーテープ
BRPI0212395-9A BR0212395B1 (pt) 2001-08-24 2002-08-26 fita de fecho que torna a fechar para um saco hermÉtico, saco hermÉtico, mÉtodo para produzir uma vedaÇço de violaÇço evidente e mÉtodo para produzir um saco que torna a fechar.
NZ531366A NZ531366A (en) 2001-08-24 2002-08-26 Scored tamper evident fastener tape
MXPA04001653A MXPA04001653A (es) 2001-08-24 2002-08-26 Cinta sujetadora de alteracion registrada evidente.
EP02768720A EP1427642A4 (fr) 2001-08-24 2002-08-26 Dispositif de fermeture inviolable a rainures
NO20041219A NO20041219L (no) 2001-08-24 2004-03-23 Manipulersikkert festeband

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US31478701P 2001-08-24 2001-08-24
US60/314,787 2001-08-24

Publications (1)

Publication Number Publication Date
WO2003018417A1 true WO2003018417A1 (fr) 2003-03-06

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ID=23221442

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Application Number Title Priority Date Filing Date
PCT/US2002/027174 WO2003018417A1 (fr) 2001-08-24 2002-08-26 Dispositif de fermeture inviolable a rainures

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Country Link
EP (1) EP1427642A4 (fr)
JP (1) JP2005500883A (fr)
KR (1) KR20040039306A (fr)
CN (1) CN1564770A (fr)
BR (1) BR0212395B1 (fr)
CA (1) CA2458501A1 (fr)
MX (1) MXPA04001653A (fr)
NO (1) NO20041219L (fr)
NZ (1) NZ531366A (fr)
PL (1) PL201394B1 (fr)
WO (1) WO2003018417A1 (fr)
ZA (1) ZA200401447B (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2397850A (en) * 2002-12-27 2004-08-04 Ashok Chaturvedi Zipper closure with score line on diaphragm
EP1467919A1 (fr) * 2001-12-28 2004-10-20 Pechiney Emballage Flexible Europe Emballage plie et procede de fabrication associe
US7185403B2 (en) 2002-12-27 2007-03-06 Ashok Chaturvedi Zipper slider assembly with diaphragm for flexible packages
JP2008515729A (ja) * 2004-10-07 2008-05-15 ジップ・パック・アイピー・アクチエンゲゼルシャフト 紙製又は合成樹脂製の袋体
EP2338805A1 (fr) * 2009-12-24 2011-06-29 Juichi Kasai Sac plastique disposant d'une fermeture en plastique avec une glissière et un dispositif de prévention contre toute ouverture non autorisée et son procédé de fabrication
WO2014150238A1 (fr) * 2013-03-15 2014-09-25 Reynolds Presto Products Inc. Système de fermeture à l'épreuve des enfants comprenant un agencement d'élément de protection pour un sac refermable, et procédés associés

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4881572B2 (ja) * 2005-04-11 2012-02-22 瀧川化学工業株式会社 スライダタイプのファスナ付き包装袋
JP2007261640A (ja) * 2006-03-29 2007-10-11 Toyo Seikan Kaisha Ltd 加熱殺菌可能なファスナー及び包装袋
WO2015182289A1 (fr) * 2014-05-26 2015-12-03 株式会社ミューパック・オザキ Sac d'emballage
EP3204312B1 (fr) 2014-10-09 2018-12-26 Intercontinental Great Brands LLC Emballage pour produit alimentaire et procédé d'ouverture
KR20200119650A (ko) 2019-04-10 2020-10-20 주식회사 성엔지니어링 케이블 보호장치
US11077989B2 (en) * 2019-06-21 2021-08-03 Reynolds Presto Products Inc. Slider device, zipper closure system, and methods of use
CN113184370A (zh) * 2020-01-14 2021-07-30 深圳市聚亿新材料科技股份有限公司 具有提醒功能的密封袋

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991801A (en) * 1975-06-23 1976-11-16 Steven Ausnit Plastic fasteners with connecting web
US4196030A (en) * 1976-12-27 1980-04-01 Minigrip, Inc. Method of making extruded construction for bags
US4285376A (en) * 1977-07-07 1981-08-25 Minigrip, Inc. Reclosable plastic bag construction made from a one piece extrusion
US4923309A (en) * 1989-02-27 1990-05-08 Illinois Tool Works Tamper-evident package
US4925316A (en) * 1986-08-11 1990-05-15 Minigrip, Inc. Reclosable bag having an outer reclosable zipper type closure and inner non-reclosable closure
US4927271A (en) * 1988-12-12 1990-05-22 Kcl Corporation Recloseable tamper evident bag with hooded closure
US5023122A (en) * 1988-01-29 1991-06-11 Minigrip, Inc. Easy open bag structure
US5456928A (en) * 1989-06-30 1995-10-10 Oscar Mayer Foods Corporation Tamper-evident, flexible, reclosable package
US5964532A (en) * 1996-08-07 1999-10-12 Tenneco Packaging Inc. Reclosable fastener strip with tamper evident feature
US6257763B1 (en) * 1997-04-08 2001-07-10 Huntsman Kcl Corporation Tamper evident zipper slider

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU7080000A (en) * 1999-09-16 2001-04-17 Pactiv Corporation Plastic bag with zipper slider and end terminations captured in pocket
PT1263655E (pt) * 1999-11-01 2014-10-13 Reynolds Presto Products Inc Saco com fecho reutilizável para produtos alimentares e método correspondente
JP2003520160A (ja) * 2000-01-18 2003-07-02 レイノルズ コンシューマー プロダクツ、インク． スライダ装置とタンパーエビデント構造とを有する再封可能なパッケージ

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991801A (en) * 1975-06-23 1976-11-16 Steven Ausnit Plastic fasteners with connecting web
US4196030A (en) * 1976-12-27 1980-04-01 Minigrip, Inc. Method of making extruded construction for bags
US4285376A (en) * 1977-07-07 1981-08-25 Minigrip, Inc. Reclosable plastic bag construction made from a one piece extrusion
US4925316A (en) * 1986-08-11 1990-05-15 Minigrip, Inc. Reclosable bag having an outer reclosable zipper type closure and inner non-reclosable closure
US5023122A (en) * 1988-01-29 1991-06-11 Minigrip, Inc. Easy open bag structure
US4927271A (en) * 1988-12-12 1990-05-22 Kcl Corporation Recloseable tamper evident bag with hooded closure
US4923309A (en) * 1989-02-27 1990-05-08 Illinois Tool Works Tamper-evident package
US5456928A (en) * 1989-06-30 1995-10-10 Oscar Mayer Foods Corporation Tamper-evident, flexible, reclosable package
US5964532A (en) * 1996-08-07 1999-10-12 Tenneco Packaging Inc. Reclosable fastener strip with tamper evident feature
US6257763B1 (en) * 1997-04-08 2001-07-10 Huntsman Kcl Corporation Tamper evident zipper slider

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1467919A1 (fr) * 2001-12-28 2004-10-20 Pechiney Emballage Flexible Europe Emballage plie et procede de fabrication associe
EP1467919A4 (fr) * 2001-12-28 2008-01-02 Pechiney Emballage Flexible Eu Emballage plie et procede de fabrication associe
EP1878668A1 (fr) * 2001-12-28 2008-01-16 Pechiney Emballage Flexible Europe Paquet rayé et son procédé de fabrication
GB2397850A (en) * 2002-12-27 2004-08-04 Ashok Chaturvedi Zipper closure with score line on diaphragm
GB2397850B (en) * 2002-12-27 2006-02-15 Ashok Chaturvedi Slider assembly
US7185403B2 (en) 2002-12-27 2007-03-06 Ashok Chaturvedi Zipper slider assembly with diaphragm for flexible packages
JP2008515729A (ja) * 2004-10-07 2008-05-15 ジップ・パック・アイピー・アクチエンゲゼルシャフト 紙製又は合成樹脂製の袋体
JP4901742B2 (ja) * 2004-10-07 2012-03-21 エスドゥエフ・フレクシコ 紙製又は合成樹脂製の袋体
EP2338805A1 (fr) * 2009-12-24 2011-06-29 Juichi Kasai Sac plastique disposant d'une fermeture en plastique avec une glissière et un dispositif de prévention contre toute ouverture non autorisée et son procédé de fabrication
WO2014150238A1 (fr) * 2013-03-15 2014-09-25 Reynolds Presto Products Inc. Système de fermeture à l'épreuve des enfants comprenant un agencement d'élément de protection pour un sac refermable, et procédés associés
US9321560B2 (en) 2013-03-15 2016-04-26 Reynolds Presto Products Inc. Child resistant closure system including hood arrangement for recloseable bag and methods

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EP1427642A4 (fr) 2008-01-16
NO20041219L (no) 2004-05-21
ZA200401447B (en) 2005-08-31
PL201394B1 (pl) 2009-04-30
KR20040039306A (ko) 2004-05-10
BR0212395A (pt) 2004-10-19
CN1564770A (zh) 2005-01-12
BR0212395B1 (pt) 2013-03-05
JP2005500883A (ja) 2005-01-13
MXPA04001653A (es) 2004-11-22
EP1427642A1 (fr) 2004-06-16
NZ531366A (en) 2004-06-25
PL368132A1 (en) 2005-03-21
CA2458501A1 (fr) 2003-03-06

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