US20150104120A1 - Side-gusseted bag made of film - Google Patents

Side-gusseted bag made of film Download PDF

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Publication number
US20150104120A1
US20150104120A1 US14/361,308 US201214361308A US2015104120A1 US 20150104120 A1 US20150104120 A1 US 20150104120A1 US 201214361308 A US201214361308 A US 201214361308A US 2015104120 A1 US2015104120 A1 US 2015104120A1
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US
United States
Prior art keywords
gusseted
walls
gusseted bag
seams
main walls
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.)
Abandoned
Application number
US14/361,308
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English (en)
Inventor
Klaus Huckriede
Glenn Andrew Spendlow
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.)
Bischof and Klein SE and Co KG
Original Assignee
Bischof and Klein SE and Co KG
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 Bischof and Klein SE and Co KG filed Critical Bischof and Klein SE and Co KG
Assigned to BISCHOF + KLEIN GMBH & CO. KG reassignment BISCHOF + KLEIN GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Spendlow, Glenn Andrew, HUCKRIEDE, KLAUS
Publication of US20150104120A1 publication Critical patent/US20150104120A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/008—Standing pouches, i.e. "Standbeutel"
    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/12—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having removable closures
    • B65D47/127—Snap-on caps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/10—Bags or like containers made of paper and having structural provision for thickness of contents with gusseted sides
    • 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
    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5861—Spouts
    • B65D75/5872—Non-integral spouts
    • B65D75/5883—Non-integral spouts connected to the package at the sealed junction of two package walls

Definitions

  • the invention concerns a side-gusseted bag according to the preamble of claim 1 .
  • Side-gusseted bags of film in particular plastic film, that are embodied in circumferential direction of two main walls and two intermediately positioned side-gusseted walls and are delimited at the top side and bottom side by transverse seams or reclosure devices are widely used in daily life.
  • a side-gusseted bag for receiving pasty or liquid substances, even though with incompletely formed side gussets, is disclosed in EP 1 362 797 B1 wherein the bag at the topside is closed off by a transversely extending head seam into which a spout in the form of a cap closure is sealed.
  • Spouts of this kind typically comprise a weld-in or seal-in region in which opposite fastening surfaces enable a fold-free contact of the film and an attachment that provides a load-resistant and seal-tight closure.
  • the type of the side-gusseted bag disclosed in the aforementioned publication is designed to provide transitions between the bag of film and the spout that are free of folds as much as possible. Even though, the known bag, due to its rectangular basic shape, tends to form a filling shape with gusset-shaped or pocket-shaped areas that counteract filling without air inclusions and emptying without liquid residues.
  • a side-gusseted bag as a closed container provided with a spout such that, as a liquid container, it is suitable for complete filling and complete emptying while, at the same time, it can be produced by conventional manufacturing methods and in manufacturing machines in an uncomplicated, fast and breakage-safe way, wherein the shape should also be collapsible to a flat state for a compact arrangement for shipping and storage.
  • this object is solved by a side-gusseted bag, based on the preamble of claim 1 , with the characterizing features of claim 1 .
  • the conventional four-sided side-gusseted bag is designed to obtain, upon filling, for example, with grainy material, a parallelepipedal shape that, however, upon filling with liquid would bulge and distort and also generate corners and pockets, an increase in the number of sides is already suitable to provide a multi-sided polygon shape and thus a better approximation to a desired rounding of the circumference.
  • a pentagon cross-sectional shape matches much better a circular shape that is formed at least in approximation due to interior pressure of a liquid.
  • the increase of surfaces is achieved by a greater number of side-gusseted walls that, as in the conventional four-sided side-gusseted bag, can assume a flat arrangement with main surfaces and intermediately folded-in sidewalls.
  • Slanted seams between the side-gusseted walls among each other or between the side-gusseted walls and the main walls that provide at least the head region on the inner side with a geometry in the form of a smooth cover wall contribute significantly to avoiding accumulations or pockets upon filling or emptying of such a side-gusseted bag.
  • a cover wall can be predetermined to be planar.
  • U.S. Pat. No. 7,147,597 B2 discloses already side-gusseted bags with (three or) five circumferential sides which however are not collapsible to a flat and smooth state.
  • all slanted seams in the head region are oriented toward a single center point in order to connect a spout with all circumferential sides.
  • a side-gusseted bag according to the invention made of film can be produced in a particularly simple way by means of sealed seams when the film as a whole is sealable or is provided at least on one side with a sealable layer.
  • Conventionally used and well suited in this context is a composite film with a polyolefin film, in particular polyethylene, as an inner layer that provides excellent sealability on the inner side and an outer layer of polyester which is usually thinner, stronger, and is also melting at higher temperature.
  • This material combination has also the further advantage, widely used in practice, that the sealed seams between the side-gusseted walls among each other and between the side-gusseted walls and the main walls can be sealed, while resting on each other, through several films in one single working step without thereafter the outer sides being fused together and preventing unfolding of the bag from its flat position into the fill position.
  • Manufacture of such a side-gusseted bag is possible on machines that manufacture already conventional side-gusseted bags with two main walls and only two side-gusseted walls positioned individually therebetween.
  • Manufacture is first directed at a hose (circumferentially closed) that can be produced in that a single film web has the oppositely positioned lateral edges combined and closed by a single longitudinal seam to form a hose, but also, in an alternative conventional embodiment, in that the main walls and the side-gusseted walls as strips are combined and connected to each other by several longitudinal seams to form a hose.
  • slanted seams as support seams have already been used partially at 45° relative to the longitudinal direction which, however, usually did not delimit the side-gusseted walls but only shape them internally.
  • the slanted seams extend however typically at an angle of less than 45° relative to the longitudinal direction.
  • the more precise determination of the angle is realized with respect to whether a flat planar head region, for adaptation to an enclosing container with a flat top side, or a funnel-shaped head region for better complete filling and emptying is to be provided.
  • the slanted seams of the unfolded side walls and main walls in the head plane form triangles that combine to a planar surface.
  • two oppositely positioned walls are to abut not with a point but with an at least short head seam into which also the spout is to be incorporated.
  • typically two larger triangles with a cut-off tip for the head seam are to be provided opposite each other which usually are provided for the main walls wherein the slanted seams begin to diverge only from the two ends of the head seam.
  • the afore described configuration basically also applies to an embodiment of the side-gusseted bag that is conical or funnel-shaped in the head region wherein the triangular shapes of the walls wipe the slanted seams are all the more pointed the more pronounced the conical shape is to be designed.
  • a configuration of the side-gusseted walls with identical circumferential width relative to each other is particularly self-evident where the neighboring side-gusseted walls in the folded-in state also are positioned congruently on top of each other while the main walls have a width that is longer by the length of the head seam.
  • the main walls and the side-gusseted walls can be provided with longitudinal seams between each other when manufacture of the side-gusseted bag is based on a single film web and therefore only a single longitudinal seam would have to be provided.
  • Longitudinal seams between the main walls and the side-gusseted walls or between the side-gusseted walls among each other can however be expedient for stiffening the bag and for a controlled collapse upon emptying.
  • the longitudinal seams are then provided as fin seams that project outwardly. This makes it possible to keep the inner side of the side-gusseted bag smooth and without unnecessarily wetted surfaces.
  • the fin seams which are projecting outwardly are desirable also for side-gusseted bags to be used as inner container and which thereby counteract an undesirable adhesion of the inner container on the exterior container.
  • the configuration of a bottom region that is oppositely position to the head region at the bottom, can be realized with very similar considerations wherein however a central head seam is not needed because at the bottom usually no spout or other emptying opening must be provided. Accordingly, also in the bottom area acute-angled triangles can be provided between slanted seams.
  • the bottom area in consideration of a smooth collapse of the bag is designed congruent with the head region. The “congruent” configuration of the bottom area relative to the head region does not prevent to design indeed the bottom to be flat when the head region is conically extended, and vice versa.
  • FIG. 1 side view of a first embodiment (partially broken)
  • FIG. 2 plan view of the embodiment according to FIG. 1 ,
  • FIG. 3 cross-section of the embodiment of FIG. 1 and FIG. 2 at the beginning of folding
  • FIG. 4 enlarged detail IV of FIG. 3 .
  • FIG. 5 cross-section of the side-gusseted bag in folded state
  • FIG. 6 plan view of the folded state according to FIG. 5 .
  • FIG. 7 side view of a second embodiment of the side-gusseted bag.
  • FIG. 1 and FIG. 2 a side-gusseted bag according to the invention in unfolded state is identified with 1 . It has a hexagon contour comprised of six walls that in regard to width to not deviate or only insignificantly deviate from each other, which adjoin each other in the circumferential direction and converge toward a head region 2 as well as toward a bottom 3 toward the center.
  • the head region is provided with a spout 4 at the center.
  • the side-gusseted bag 1 is embodied of a film that is sealable at the inner side, in the present case a plastic composite film with a polyethylene (PE) inner layer and a polyester (PET) outer layer.
  • the spout 4 is sealed seal-tightly and fixedly into a head seam 5 by means of two oppositely positioned sealing surfaces as fastening surfaces.
  • the illustrated spout can be closed by a screw cap, but of course could also be provided with a stopper or another closure.
  • the side-gusseted bag 1 that unfolds substantially to a drum shape has a hexagon contour for filling with liquid, where upon it approximates a cylindrical shape, formed by side walls joined to each other which in the head region 2 and at the bottom 3 similar to pie slices converge toward the center. However, they do not meet at a single central point but meet at one of two ends, respectively, of the head seam 5 that enables the two-sided sealing of a spout.
  • the head seam 5 is formed between the upper cut-off triangular tips of two walls 6 , 7 that are provided somewhat wider than the other walls 8 , 9 , 10 , 11 in order to adjust the geometry of the lateral lengths and angles relative to each other. In principle, however, sides of the same circumferential width can be provided also as long as in the head region the arrangement of a spout is ensured.
  • FIG. 3 shows the sides 8 , 9 , 10 , 11 extending parallel and slightly bent to a longitudinal direction that is to be imagined to extend centrally from the bottom 3 to the head region.
  • these walls are to be understood as side-gusseted walls that enable folding of the side-gusseted bag as in case of conventional side-gusseted bags with four walls.
  • a flat manufacturing procedure for example, from a single film web that is joined with the oppositely positioned edges and sealed together in the longitudinal direction or a manufacturing procedure from strips which are joined in the width of the respective walls and then are sealed together by seams.
  • FIG. 5 shows the side-gusseted bag 1 in a folded state in which the wider walls 6 and 7 as main walls are laid flat and the side-gusseted walls 8 , 9 , 10 , 11 , folded in longitudinal direction approximately at half the width, are positioned there between. Since the main walls 6 , 7 are wider than the side-gusseted walls 8 , 9 , 10 , 11 that among each other have the same width, the side-gusseted walls folded in half will not meet at the center but remain spaced apart continuously along the fold lines 21 , 22 indicated in FIG. 6 .
  • FIG. 6 shows the folded form of the side-gusseted bag 1 in a flat plan view with main surface 6 at the top whose parallel lateral edges 13 , 14 extend in longitudinal direction according to arrow 15 in FIG. 1 and thereat are reinforced with parallel laterally projecting seams 15 , 16 .
  • the seams 15 , 16 converge toward the head seam 5 with slanted seams 17 , 18 that, for a hexagon side-gusseted bag of the type considered here, can be seen on the outline of an approximately equilateral triangle.
  • the bottom 3 forms in the folded form according to FIG. 5 and FIG.
  • Seams that are projecting outwardly like fins such as the seam 12 in FIG. 4 have been found to be advantageous not only for contour shaping of the fold lines and for reinforcement of the side-gusseted bag but also aid in preventing inner adhesion of the film of the side-gusseted bag in case of enclosing containers that have a smooth inner surface.
  • FIG. 7 a variant of the side-gusseted bag is indicated as a whole at 22 , in which two side-gusseted walls 23 and 24 illustrated in the drawing are shown with a fin seam 25 between each other and with fin seams 26 , 27 relative to adjoining main walls (not illustrated), wherein the side-gusseted walls 23 , 24 as well as the other side-gusseted walls and the main walls in a head region 28 and at a bottom 29 converge toward the center in a funnel shape.
  • This is of interest in case of liquid-filled side-gusseted bags in particular in the head region 28 in order to facilitate complete filling and complete emptying.
  • Such a bag is to be designed to be foldable in the same way to a flat state like the side-gusseted bag according to FIGS. 1 through 6 wherein only between the slanted seams such as the slanted seams 30 , 31 elongate triangular end areas of the main walls and side-gusseted walls with narrower angles between the seams are provided.
  • a head seam 32 is to provided into which a spout 33 is to be embedded from two sides in order to furnish the film of the side-gusseted bag with a solid injection-molded filling and pouring component.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
US14/361,308 2011-12-16 2012-12-14 Side-gusseted bag made of film Abandoned US20150104120A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE201120109209 DE202011109209U1 (de) 2011-12-16 2011-12-16 Seitenfaltenbeutel aus Folie
DE202011109209.0 2011-12-16
PCT/EP2012/005166 WO2013087216A1 (de) 2011-12-16 2012-12-14 Seitenfaltenbeutel aus folie

Publications (1)

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US20150104120A1 true US20150104120A1 (en) 2015-04-16

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US14/361,308 Abandoned US20150104120A1 (en) 2011-12-16 2012-12-14 Side-gusseted bag made of film

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US (1) US20150104120A1 (de)
EP (1) EP2791022A1 (de)
CA (1) CA2874781A1 (de)
DE (1) DE202011109209U1 (de)
RU (1) RU2014128938A (de)
WO (1) WO2013087216A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160016695A1 (en) * 2014-07-16 2016-01-21 Dow Global Technologies Llc Flexible Container with Fitment and Process for Producing Same
US20170023337A1 (en) * 2015-04-07 2017-01-26 Gryphon Energetics Inc. Exploding Target
JP2019094102A (ja) * 2017-11-24 2019-06-20 藤森工業株式会社 ガゼット袋
KR20200018595A (ko) * 2017-06-14 2020-02-19 다이니폰 인사츠 가부시키가이샤 액체 수납 용기, 액체 수납 용기의 사용 방법 및 액체 수납 용기와 외장 용기의 조합체
WO2020221789A1 (en) * 2019-05-02 2020-11-05 Global Life Sciences Solutions Usa Llc Single-use, flexible bioprocessing bag and method of manufacturing a single-use, flexible bioprocessing bag

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US11084627B2 (en) 2014-06-26 2021-08-10 Cytiva Sweden Ab Bag weld with gusset
WO2016030766A2 (en) * 2014-08-29 2016-03-03 Intelligent Energy Limited Flexible volumetric container
FI126425B (en) * 2015-11-06 2016-11-30 Koepala Packaging Oy Packaging or product and packaging or product roll

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JP2008189377A (ja) * 2007-02-08 2008-08-21 Toppan Printing Co Ltd 口栓付きガセットパウチおよびその製造方法

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JP2005162283A (ja) * 2003-12-04 2005-06-23 Fuji Seal International Inc スパウト付きパウチ容器
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160016695A1 (en) * 2014-07-16 2016-01-21 Dow Global Technologies Llc Flexible Container with Fitment and Process for Producing Same
US9624005B2 (en) * 2014-07-16 2017-04-18 Dow Global Technologies Llc Flexible container with fitment and process for producing same
US10494150B2 (en) 2014-07-16 2019-12-03 Dow Global Technologies Llc Flexible container with fitment and process for producing same
US20170023337A1 (en) * 2015-04-07 2017-01-26 Gryphon Energetics Inc. Exploding Target
KR20200018595A (ko) * 2017-06-14 2020-02-19 다이니폰 인사츠 가부시키가이샤 액체 수납 용기, 액체 수납 용기의 사용 방법 및 액체 수납 용기와 외장 용기의 조합체
KR102466826B1 (ko) 2017-06-14 2022-11-14 다이니폰 인사츠 가부시키가이샤 액체 수납 용기, 액체 수납 용기의 사용 방법 및 액체 수납 용기와 외장 용기의 조합체
JP2019094102A (ja) * 2017-11-24 2019-06-20 藤森工業株式会社 ガゼット袋
JP7029279B2 (ja) 2017-11-24 2022-03-03 藤森工業株式会社 ガゼット袋および振とう型培養装置
WO2020221789A1 (en) * 2019-05-02 2020-11-05 Global Life Sciences Solutions Usa Llc Single-use, flexible bioprocessing bag and method of manufacturing a single-use, flexible bioprocessing bag
CN113785043A (zh) * 2019-05-02 2021-12-10 环球生命科技咨询美国有限责任公司 单次使用柔性生物处理包和制造单次使用柔性生物处理包的方法

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EP2791022A1 (de) 2014-10-22
CA2874781A1 (en) 2013-06-20
DE202011109209U1 (de) 2012-07-24
WO2013087216A1 (de) 2013-06-20
RU2014128938A (ru) 2016-02-10

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Owner name: BISCHOF + KLEIN GMBH & CO. KG, GERMANY

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