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EP3196146A1 - Sachet plastique - Google Patents

Sachet plastique Download PDF

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Publication number
EP3196146A1
EP3196146A1 EP16203256.9A EP16203256A EP3196146A1 EP 3196146 A1 EP3196146 A1 EP 3196146A1 EP 16203256 A EP16203256 A EP 16203256A EP 3196146 A1 EP3196146 A1 EP 3196146A1
Authority
EP
European Patent Office
Prior art keywords
bag
weakening lines
upper edge
corner
lines
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
Application number
EP16203256.9A
Other languages
German (de)
English (en)
Other versions
EP3196146B1 (fr
Inventor
Wilfried Thobe
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.)
Mondi AG
Original Assignee
Mondi AG
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 Mondi AG filed Critical Mondi AG
Publication of EP3196146A1 publication Critical patent/EP3196146A1/fr
Application granted granted Critical
Publication of EP3196146B1 publication Critical patent/EP3196146B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5805—Opening or contents-removing devices added or incorporated during package manufacture for tearing a side strip parallel and next to the edge, e.g. by means of a line of weakness
    • B65D75/5811—Opening or contents-removing devices added or incorporated during package manufacture for tearing a side strip parallel and next to the edge, e.g. by means of a line of weakness and defining, after tearing, a small dispensing spout, a small orifice or the like
    • 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
    • B65D75/5816—Opening or contents-removing devices added or incorporated during package manufacture for tearing a corner or other small portion next to the edge, e.g. a U-shaped portion
    • 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
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/40—Applications of laminates for particular packaging purposes
    • 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
    • B65D75/5816—Opening or contents-removing devices added or incorporated during package manufacture for tearing a corner or other small portion next to the edge, e.g. a U-shaped portion
    • B65D75/5822—Opening or contents-removing devices added or incorporated during package manufacture for tearing a corner or other small portion next to the edge, e.g. a U-shaped portion and defining, after tearing, a small dispensing spout, a small orifice or the like
    • 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
    • B65D2575/00—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
    • B65D2575/52—Details
    • B65D2575/58—Opening or contents-removing devices added or incorporated during package manufacture

Definitions

  • the invention relates to a film bag having a two front walls having bag body, wherein at a first corner of the bag body formed by at least the two front walls first side edge connects to an upper edge of the bag, where the two front walls are connected by a sealing seam, wherein the front walls each of the first corner having a plurality of weakening lines, which extend from the first side edge in an arc and at a distance from each other to the closure seam and wherein a tear-open is arranged on the closure seam.
  • Foil bags are opened in practice in a variety of ways. In addition to cutting with a knife or scissors, foil bags can also be provided for opening by hand.
  • multilayer coextrusion films or film composites are known for the formation of film bags, in which the two opposite front walls are formed by a deflaking, i. Wind up, a seal at the top edge of the bag can be opened. This can be done either by opening the seal or a material break within the laminate, resulting in either an adhesion break or a cohesive failure. Corresponding opening patterns can also be achieved in foil bags, which are sealed with adhesive on an upper edge of the bag.
  • the described type of opening is often used in the field of snack packaging such as for potato chips.
  • the entire upper edge of the bag is opened, so that the contents of the film bag can be easily grasped by hand.
  • a simple tearing is possible.
  • Corresponding tearing aids such as individual incisions, tearing notches or even a zigzag cut permit easy initiation of cracking, but the further tearing by a user is difficult to control, even if oriented film layers of oriented polyethylene terephthalate (OPET) or biaxially oriented polypropylene (BO-PP ) allow easy tearing. Even if a crack can be deliberately controlled by a user in the mentioned materials, a certain skill of the user is necessary for a targeted tearing. The same applies to cellulose-based films, which have a considerable rigidity even without a biaxial orientation.
  • OPET oriented polyethylene terephthalate
  • BO-PP biaxially oriented polypropylene
  • opening aids in the form of weakening lines are known from practice, which are produced by laser or by punching in the material. Such weakening lines allow the crack profile and the opening formed therewith to be specified exactly. In addition, easy handling in a tearing can be ensured.
  • a foil bag in which a plurality of lines of weakness are arranged at a first corner of the bag body between a first side edge and an upper edge of the bag, which converge and then form a common weakening line.
  • the embodiment described is also particularly suitable for tearing up gusseted bags starting from the upper edge of the bag, in which case the gusset is inserted between the two front walls. Before reaching the inserted gusset the different weakening lines converge.
  • a film bag is known in which either the entire upper edge of the bag or even a corner can be demolished.
  • different weakening lines or lines of weakness are provided, which can be controlled by the crack initiation of the crack profile.
  • crack initiation occurs at one of the side edges.
  • crack initiation takes place either starting from the opposite side edge or from the upper edge of the bag.
  • two weakening lines run one above the other in a transverse direction of a foil bag, wherein either only a partial area or the bag in the entire width can be opened by a corresponding sealing on the upper edge of the bag.
  • the preparation of the bag is complicated because large areas are sealed to the described To achieve functionality. Again, a misoperation can cause the foil bag is accidentally completely opened.
  • the EP 2 650 229 A1 as well as the CN 202 609 252 U relate to further embodiments in which a package can be successively torn further, for which purpose the corresponding weakening lines are arranged in a straight alignment parallel to each other.
  • a foil bag with the features described above is finally from the US 8 740 458 B2 known.
  • a tearing aid in the form of a tearing notch is provided, starting from the tearing aid, the tearing at first tearing open along the front walls before the tear reaches an arcuate line of weakness and is directed from there to a side edge of the bag body.
  • a second line of weakness below serves as a hedge if the rip accidentally leaves the first line of weakness. If the initially unguided crack follows the line of weakness, a bend occurs along its course. Especially at such bends there is a risk of uncontrolled tearing. In order for the crack to actually follow the line of weakness, it must weaken the material accordingly. The size of the opening formed can not be influenced. The crack initially extends from the tear aid in approximately straight down and then goes over to the line of weakness, so that there are always the same dimensions of the opening in a tearing.
  • the present invention has for its object to provide a foil pouch that can be torn open particularly easy and flexible.
  • the object of the invention and solution of the problem is a foil bag according to claim 1.
  • the size of the opening can be influenced to some extent by a user by at least three lines of weakness extending at a distance from each other. If only a small opening is needed, only a comparatively small corner section can be torn open. If, in contrast, a larger opening is desired, tearing is possible with the breaking aid at a weakening line arranged farther towards the center of the bag, whereby a larger corner section is correspondingly cut off. In particular, at the discretion of a user, the foil bag can also be torn open larger in hindsight.
  • the bag can then be further torn to remove the remaining contents quickly. It should be noted that an already partially emptied bag is easier to handle alone due to the low weight, and even with a pouring the contents itself can develop less momentum.
  • the generation of a different size opening may also be useful to either remove only the subsets or to be able to empty the bag as quickly as possible in one.
  • the foil bag according to the invention can be provided for a wide variety of products, in particular free-flowing products. These include, for example, foods such as rice, sugar, flour, cereals, pelleted pet food, a wide variety of powdery or granular construction products, detergents and cleaners, cat litter or the like.
  • the weakening lines extend in an arc between the first side edge and the upper edge of the bag, the weakening lines expediently starting from the first corner having a convex shape.
  • the convex course of the weakening lines from the first corner corresponds to the usual pulling direction of a user, so that the tearing can be particularly easy and secure.
  • all weakening lines enclose at their end associated with the upper edge an angle of more than 60 ° with the upper edge of the bag. More preferably, the angle is more than 75 °, for example, about 90 °. Then, when the crack is first formed at the tearing aid with two hands at an approximately right angle from the upper edge of the bag, this course of the tear also corresponds to the course of the weakening lines, so that in the transfer of the thus formed tear on one of the lines of weakness no strong bending results and the tearing can be done in a light, fluid motion.
  • the lines of weakness formed on the two front walls are preferably arranged in a mutual overlap, depending on the design production-related deviations can be accepted.
  • An exact or at least substantially exact coverage of the lines of weakness at the two front walls is obtained when the first side edge is formed as a folded edge and the lines of weakness are generated symmetrically with respect to this fold edge, which in the manufacture of the film bag, for example in an FFS method (Form -Fill-Seal method), is easily possible.
  • each case between 5 and 10 at a distance from each other extending weakening lines are provided on the front walls in order to achieve a very high degree of comfort and with a minimum production cost Flexibility for the user to achieve.
  • a distance from each other extending weakening lines are provided on the front walls in order to achieve a very high degree of comfort and with a minimum production cost Flexibility for the user to achieve.
  • only three or four as well as more than eleven lines of weakness can be provided.
  • an increased number of weakening lines on the two front walls may be advantageous in order to achieve an increased degree of flexibility with respect to the sizes of the opening to be formed.
  • the weakening lines are arranged at a different distance arcuately about a common reference point.
  • the lines of weakness can be embodied as circular arcs or elliptical arcs with a common center.
  • the weakening lines can run as a quarter circles concentrically around a center offset at the first corner or also with respect to the first corner.
  • the lines of weakness are arranged equidistant from each other, so that adjacent lines of weakness have an equal distance. Regardless of a precisely equidistant arrangement, the spacing of adjacent lines of weakness is preferably between 7 mm and 30 mm. If the weakening lines are arranged, for example, as circular arcs concentrically around a center point, the radius increases continuously in accordance with the distance of adjacent weakening lines.
  • the lines of weakness can be generated with a laser or by punching.
  • the person skilled in the art is able to adapt the laser energy or the punching depth to the respective material combination and thickness.
  • the tearing aid permits easy tearing and the arcuate course also preferably corresponds approximately to the pulling direction by a user, relatively slight weakening of the material due to the weakening lines is already sufficient to ensure a controlled tearing behavior.
  • the tearing aid on the upper edge of the bag can be formed particularly simply by a zigzag cut.
  • several incisions or notches come into consideration, which are arranged at least in the region of the weakening lines on the upper edge of the bag.
  • a zigzag cut, cuts or notches may also extend across the entire width of the film bag along the top edge of the bag in the transverse direction.
  • the tearing aid is intended to permit tearing precisely at each weakening line, notches or notches may be provided for this purpose with particular preference.
  • the weakening lines are not only led up to the closing seam, but are guided over the closing seam to the outermost edge of the front walls, so that they themselves form the breaking aid at their ends.
  • the weakening lines extend at the upper edge of the bag starting from the first corner over a range between 10% and 45% of the bag width determined along the upper edge of the bag.
  • both corners can be provided with weakening lines in the manner described, so that the described tear-open structure is present at a second corner between the upper edge of the bag and a second side edge and the film bag is optionally torn open at one of the two side edges can.
  • the foil bag can easily be torn open by a right-handed and a left-handed person if the described weakening lines are provided at the two upper corners.
  • the inventive design of the film bag is particularly advantageous if the bag body is formed exclusively by the two front walls and correspondingly no gussets and preferably also has no bottom fold.
  • a pillow-shaped bag can be formed particularly easily from a hose, wherein the film bag is preferably produced in an FFS process.
  • the inventive design of the film bag can also be provided when the bag body of the film bag is folded from a single sheet of film or formed from two sheets of film by heat sealing.
  • the bag body is formed from a coextruded or multilayer laminated film.
  • an inner film layer is preferably formed from a heat-sealable material such as polyolefin, in particular polyethylene.
  • laminated films often use oriented film layers such as OPET and BO-PP.
  • printing is preferably arranged on an inner layer transition, so that the imprint is optimally protected.
  • the Fig. 1 shows a film bag according to the invention, the bag body is formed of two front walls 1.
  • the bag body formed by the two front walls has a first side edge 2a, a second side edge 2b, a lower bag edge 3 and an upper bag edge 4.
  • the lower edge of the bag 3 and the upper Bag edge 4 are each closed by a closure seam in the form of a heat seal seam.
  • the front walls 1 merge into one another by means of bending lines, wherein a closing seam for the peripheral closure of the bag body at which the rear side of the bag body forms and in the Fig. 1 invisible rear front wall 1 is preferably arranged centrally.
  • closure seam can also be arranged on one of the side edges 2a, 2b.
  • first corner 5 which is formed between the first side edge 2a and the upper edge of the bag 5
  • lines of weakness 6 which extend from the first side edge 2a in an arc and at a distance from each other to the sealing seam on the upper edge of the bag , wherein on the closure seam a tear-in is arranged.
  • Fig. 2 is provided as a tear a zigzag cut 7.
  • multiple notches or cuts may be present as rupture aid.
  • each front wall there are at least three weakening lines 6 on each front wall, in the exemplary embodiment seven weakening lines 6, the tear-open aid being designed and arranged such that it allows tearing between respectively two adjacent weakening lines 6 at the upper edge.
  • the upper edge of the bag can be torn by a user at almost any point (in each recess). If instead of a zigzag cut 7, for example, separate notches or cuts are present, so at least between each two adjacent weakening lines 6 such a notch or an incision provided.
  • the tear When the upper bag edge 4 according to the Fig. 2 is torn between two lines of weakness 6, the tear first extends approximately at right angles downwards and can then be taken up by one of the adjacent weakening lines 6.
  • the weakening lines have a convex shape with respect to the first corner 5 and usually enclose an angle of more than 60 ° with the upper edge of the bag 4.
  • the lines of weakness 6 preferably extend at a different distance arcuately about a common reference point.
  • the weakening lines 6 can extend concentrically around a center arranged at the first corner 5 as quarter circles, an equidistant arrangement of the weakening lines 6 being achieved by a uniformly increasing radius.
  • the distance between adjacent weakening lines may be, for example, between 7 mm and 30 mm, for example about 15 mm.
  • the lines of weakness 6 are generated by a laser, but also the formation by punching comes into consideration. If starting from the Fig. 2 the foil bag is further torn open Finally, a bag section with the first corner 5 completely separated, so that then the contents of the film bag can be removed ( Fig. 3 ).
  • the opening can also be increased slightly by a user by separating a further, then annular section along a further line of weakness 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Packages (AREA)
EP16203256.9A 2016-01-19 2016-12-09 Sachet plastique Active EP3196146B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016100824.9A DE102016100824A1 (de) 2016-01-19 2016-01-19 Folienbeutel

Publications (2)

Publication Number Publication Date
EP3196146A1 true EP3196146A1 (fr) 2017-07-26
EP3196146B1 EP3196146B1 (fr) 2019-02-20

Family

ID=57542820

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16203256.9A Active EP3196146B1 (fr) 2016-01-19 2016-12-09 Sachet plastique

Country Status (6)

Country Link
US (1) US20170203900A1 (fr)
EP (1) EP3196146B1 (fr)
JP (1) JP2017128390A (fr)
CN (1) CN106976633B (fr)
DE (1) DE102016100824A1 (fr)
ES (1) ES2721774T3 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210198022A1 (en) * 2019-12-30 2021-07-01 Matthew Rubin Systems and methods for distributing and dispensing personal servings of chocolate
JP6727751B2 (ja) * 2014-12-18 2020-07-22 ロレアル 少なくとも２種類の成分を収容するためのパッケージング
USD896633S1 (en) 2019-01-29 2020-09-22 Golden State Foods Corp. Container
USD896634S1 (en) 2019-01-29 2020-09-22 Golden State Foods Corp. Container
CN112407574B (zh) * 2020-11-25 2022-04-26 浙江庞度环保科技股份有限公司 一种确定粉料包装切口倾斜角度的方法
CN117945003A (zh) * 2024-03-08 2024-04-30 任丘市弘泰塑料制品有限公司 一种抗撕裂聚乙烯薄膜

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JPH0462672U (fr) * 1990-10-09 1992-05-28
EP1243523A1 (fr) * 2001-03-22 2002-09-25 Amcor Flexibles France Feuille d'emballage stratifiée comportant une bande d'ouverture
WO2003095327A1 (fr) * 2002-05-07 2003-11-20 Elsaesser Verpackungen A.G. Sachet en film mince a bec verseur
JP2005280770A (ja) * 2004-03-30 2005-10-13 Futaba Kagaku:Kk 内容物を収納した軟質容器体
DE202009000302U1 (de) 2009-01-10 2009-03-19 Nordenia Deutschland Halle Gmbh Folienverpackung
WO2012100996A1 (fr) 2011-01-28 2012-08-02 Unilever Nv Sachet à pré-incision au laser
US20120273493A1 (en) 2011-04-28 2012-11-01 Gum Marc W Package
CN202609252U (zh) 2012-03-27 2012-12-19 华中科技大学 一种食品包装袋
CA2689258C (fr) 2008-12-31 2013-07-16 Kraft Foods Global Brands Llc Paquet souple avec dispositif d'ouverture multiple
EP2650229A1 (fr) 2008-12-22 2013-10-16 Intercontinental Great Brands LLC Emballage en film pouvant être rompu pour pièces empilées de produits de confiserie
US8740458B2 (en) 2010-05-25 2014-06-03 Frito-Lay North America, Inc. Easy open bag

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0462672U (fr) * 1990-10-09 1992-05-28
EP1243523A1 (fr) * 2001-03-22 2002-09-25 Amcor Flexibles France Feuille d'emballage stratifiée comportant une bande d'ouverture
WO2003095327A1 (fr) * 2002-05-07 2003-11-20 Elsaesser Verpackungen A.G. Sachet en film mince a bec verseur
JP2005280770A (ja) * 2004-03-30 2005-10-13 Futaba Kagaku:Kk 内容物を収納した軟質容器体
EP2650229A1 (fr) 2008-12-22 2013-10-16 Intercontinental Great Brands LLC Emballage en film pouvant être rompu pour pièces empilées de produits de confiserie
CA2689258C (fr) 2008-12-31 2013-07-16 Kraft Foods Global Brands Llc Paquet souple avec dispositif d'ouverture multiple
DE202009000302U1 (de) 2009-01-10 2009-03-19 Nordenia Deutschland Halle Gmbh Folienverpackung
US8740458B2 (en) 2010-05-25 2014-06-03 Frito-Lay North America, Inc. Easy open bag
WO2012100996A1 (fr) 2011-01-28 2012-08-02 Unilever Nv Sachet à pré-incision au laser
US20120273493A1 (en) 2011-04-28 2012-11-01 Gum Marc W Package
CN202609252U (zh) 2012-03-27 2012-12-19 华中科技大学 一种食品包装袋

Also Published As

Publication number Publication date
EP3196146B1 (fr) 2019-02-20
DE102016100824A1 (de) 2017-07-20
ES2721774T3 (es) 2019-08-05
US20170203900A1 (en) 2017-07-20
CN106976633A (zh) 2017-07-25
CN106976633B (zh) 2020-07-03
JP2017128390A (ja) 2017-07-27

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