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EP2535295B1 - Sac destiné à la réception d'aliments, comprenant des lignes de perforation - Google Patents

Sac destiné à la réception d'aliments, comprenant des lignes de perforation Download PDF

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Publication number
EP2535295B1
EP2535295B1 EP12004536.4A EP12004536A EP2535295B1 EP 2535295 B1 EP2535295 B1 EP 2535295B1 EP 12004536 A EP12004536 A EP 12004536A EP 2535295 B1 EP2535295 B1 EP 2535295B1
Authority
EP
European Patent Office
Prior art keywords
bag
rear side
opening
attenuation
extends
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.)
Revoked
Application number
EP12004536.4A
Other languages
German (de)
English (en)
Other versions
EP2535295A1 (fr
Inventor
Christian Budday
Arnold Thösen
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.)
Papier Mettler KG
Original Assignee
Papier Mettler Inhaber Michael Mettler eK
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
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Application filed by Papier Mettler Inhaber Michael Mettler eK filed Critical Papier Mettler Inhaber Michael Mettler eK
Priority to PL12004536T priority Critical patent/PL2535295T3/pl
Publication of EP2535295A1 publication Critical patent/EP2535295A1/fr
Application granted granted Critical
Publication of EP2535295B1 publication Critical patent/EP2535295B1/fr
Revoked 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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G21/00—Table-ware
    • A47G21/001—Holders or wrappers as eating aids for fast food, e.g. hamburgers
    • 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
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/30—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure
    • B65D85/36—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for bakery products, e.g. biscuits

Definitions

  • the present invention relates to a bag according to the preamble of claim 1 for holding foods, in particular unbaked or baked baked goods, baked baked goods, pizza, pizza pancakes, pancakes, crepes, burgers, potato pancakes, sandwiches and the like, comprising a front side with an opening side Edge and a bottom edge and a first side edge and a second, opposite side edge and a back with an opening-side edge and a bottom edge and with a first side edge or a second, opposite side edge, the front and the back in the region of their bottom edges at least are directly or indirectly connected in sections and in the region of their respective adjoining first and / or second side edges at least partially directly or indirectly.
  • Bags for containing food are well known and are used in a variety of forms and for a variety of purposes.
  • the US 5,335,996 to take a packaging bag for hamburger or similar fast food products.
  • Perforation lines are provided along and adjacent to the side edges from the opening end to the bottom end on the front side of this packaging bag, so that the front side can be completely torn open. With such bags, the packaged food product should be removed again without destruction.
  • a bag for food for example rice
  • a perforation seam running centrally on the front side from the opening end to the bottom end.
  • JP 2004 142 165 A a sandwich packaging with perforation lines on the back. Similar to the bag according to the US 5,335,996 the purpose of the perforation is to avoid damage or deformation of the packaged sandwich when unpacked.
  • US 3,570,751 A discloses a pouch made from a sheet of flexible pouch material having a tear seam extending on the surface or edge of said sheet.
  • an endless web is provided for the production of such bags, wherein on the End-losbahn initially at least one line of weakness is attached, and subsequently sections of the continuous web are folded on each other. Subsequently, the bags produced are separated by means of Drehmessem.
  • the generic packaging bags for ready-to-eat foods still leave something to be desired, in particular with regard to their operating safety and reliable handling, as well as with regard to their production.
  • weak points or predetermined breaking points are installed in a packaging bag. These perforation seams have to be sufficiently strong on the one hand so as not to break down immediately during the packaging process, and on the other hand to be sufficiently weak to reliably prevent the bag from being torn or ruptured at a location other than that intended although also after prolonged contact with a greasy, warm and / or moist food product.
  • the present invention therefore an object of the invention to provide packaging bags for particular ready-to-eat foods are available, which are not associated with the disadvantages of generic packaging bag described above and in particular a simple and nevertheless reliable tearing of the packaging bag ges tats, without affecting the packaged food, and with the torn-open pouches still being perfectly suitable as a napkin-like wrapper for holding the food product during ingestion. Furthermore, the present invention has the object to provide a packaging bag of the type described above in a simple manner, but without having to take losses in the described requirement profile losses.
  • the bags according to the invention therefore each have at least one weakening line on the front and back, which are rectified and accordingly cooperate in such a manner that a section of the bag containing at least a portion of the front side and a section of the back side can be reliably and precisely demolished , As a rule, this succeeds particularly reliably when the lines of weakness on the front and rear sides extend over the entire length (from the bottom-side edge to the opening-side edge).
  • Such a portion of the bag releasing the article therein, eg food, can also be removed by adding the attenuating lines from the front and back, for example, start together on the respective bottom edge and extend in the direction of the respective opening-side edges, without extending the lines of weakness to the opening side edge of the front and back. In this way, a reliable and easy tearing of the bag on, for example, bottom edge succeeds.
  • the bag section can then be torn off even in the areas which no longer have weakening lines.
  • the weakening lines can also start at the respective opening-side edge of the front and back sides and interact in the manner described, without having to extend to the respective bottom-side edge of the front or rear side.
  • the weakening line on the front or rear side extends from the bottom to the opening-side edge
  • the hereby cooperating weakening line on the rear or front side extends from the bottom or opening-side edge in the direction of the opening edge. or bottom edge extends without reaching this, as described above.
  • a bag lie in the unfilled state front and back to each other. Rectrically rectified first and second lines of weakness of the front and back regularly cover a common or overlapping bag area or are arranged next to each other or are at least partially superimposed. If the respectively rectified weakening lines lie next to each other at least in sections, they preferably have an average distance of not more than 30 mm, preferably not more than 15 mm.
  • a line of weakness extending in the direction of the invention in the direction of an edge is not completely carried out up to this edge, but ends previously spaced from this edge.
  • this weakening line preferably terminates at a distance of at least 50 mm, in particular at least 15 mm, and preferably at least 5 mm, from the respective edge of the front or back.
  • a weakening line which extends from the bottom or opening-side edge of the front or rear side in the direction of the opening-side or bottom-side edge preferably has a longitudinal extent of at least a quarter, in particular at least one third and particularly preferably at least half of the longitudinal extent of Front or back side between the bottom and side edges.
  • a line of weakness extending from the first or second side edge toward the second and first side edges of the front and / or rear side preferably has a length extension of at least one third, and more preferably at least half the width extension of front and / or back sides. or backside between the first and second margin.
  • the first and second or the third and fourth or the fifth and sixth or the seventh and eighth lines of weakness do not necessarily have to be parallel and / or to cover one another.
  • the parallel alignment is one of the preferred embodiments.
  • Rectified lines of weakness can be e.g. also intersect one or more times, but can also be spaced from each other or run side by side on the front or back, without crossing, as long as the safe and reliable tearing of a bag section along both rectified lines of weakness takes place.
  • the lines of weakness or perforation seams can in principle be attached in any desired form on the front and / or rear side, as long as a purpose according to the invention, e.g. a bag section can be easily and reliably removed from the bag, is achieved.
  • the weakening lines or perforations may be wavy or have a zigzag pattern.
  • the weakening lines or perforation seams are preferably arranged along a straight line.
  • front and back are preferably substantially completely interconnected along their respective mutual abutment areas.
  • bottom edges or ends of the front and back abut each other and are substantially completely interconnected or integrally merge into each other to form in this way the bag bottom.
  • a weakening line or perforation seam in the sense of the present invention can be embodied in many ways. Such weakening lines and perforation seams and / or lines and their production are familiar to the expert. Weakening lines and perforation seams in the sense of the present invention are also those which are due to a partial weakening of the material, for example the use of thinner or weaker material in regions, without having successive perforations or punches.
  • a line of weakness or perforation according to the present invention thus permits reliable tearing of a portion of the front and back of the bag along that seam.
  • Weakening lines in the sense of the present invention can be very thin, but also relatively wide, for example in the form of a weakening bar, comprising, for example, a width of several millimeters.
  • the width of a line of weakness on one and the same side and / or the width of rectified lines of weakness may also vary.
  • a weakening line in the sense of the present invention, if present as a perforation seam for example, can also be interrupted once or several times.
  • the bag has at least one first or second weakening line, in particular perforated seam, at the front and rear side, which essentially extend from the bottom end of the front or rear side extend to the opening-side end of the front or rear side, or that the bag has front and rear respectively at least one first and second weakening line, in particular perforation, extending substantially from the bottom end of the front or back in the direction extend to the opening-side end of the front or rear side, or that the bag has front and back respectively at least one first and second weakening line, in particular perforation, extending substantially from the opening end of the front or back in the direction on the bottom end of Front or back cover, or that the bag front has at least one first line of weakness, in particular perforation, which extends substantially from the opening side end of the front towards the bottom end of the back and that the back at least one second line of weakness, in particular perforation seam, which extends substantially from the bottom end in the
  • the bag has at least one third or fourth weakening line, in particular perforated seam, at the front and rear sides, which essentially extends from the first side edge to the second side edge extend, and / or that the bag front and back respectively at least a third or fourth weakening line, in particular perforation, has substantially from the first side edge of the front or back in the direction of the second side edge of front or Back side or from the second side edge of the front or back toward the first side edge front or back cover extend, and / or that the bag front has at least one third weakening line, in particular perforation, which is substantially from the second Margin towards the first n side edge, and that the back has at least a fourth line of weakness, in particular perforation, which extends substantially from the first side edge toward the second side edge, and / or that the bag front and back respectively at least one third or fourth weakening line, in particular perforation, each spaced from
  • the rectified lines of weakness do not extend over the entire length or width of the bag
  • tearing of a unitary bag section can also be accomplished by grasping and pulling the bag against the opposite sides divided by the lines of weakness.
  • the lines of weakness are not deliberately torn at the respective ends, but the lines of weakness preferably dissolve in the central region.
  • the substantially rectified first and second weakening lines of the front and rear sides run essentially parallel to the first and / or second side edge of the front or rear side.
  • the rectified weakening lines or perforation seams of the front and rear sides in the ready-to-use state lie, at least in sections, substantially on the same line.
  • the lines of weakness or perforation of the front and back are at least partially adjacent to each other or one above the other, if you put the front and back in the finished bag against each other.
  • the rectified lines of weakness or perforation of the front and back are not substantially on the same line.
  • these lines of weakness or perforations from the front and back can be slightly offset from each other, for example, in the range of about 1 mm to 15 mm.
  • the lines of weakness or perforations on the front and back are on average no more than 10 mm offset from each other.
  • one, two, three or more weakening lines or perforation seams may be present, preferably immediately next to one another.
  • the weakening lines or perforation seams of the front and rear sides preferably extend substantially parallel to the longitudinal axis of the front or rear side.
  • the respective rectified lines of weakness on the front and back for example, the first and second lines of weakness of the front and back are arranged such that a portion of the bag can be easily torn off by tearing along these cooperating lines of weakness.
  • the weakening lines on the bottom or opening-side end of the front and rear sides particularly preferably merge into one another or rest against one another. According to the invention, one can also speak of cooperating first and second, third and fourth, fifth and sixth or seventh and eighth lines of weakness or lines of weakness.
  • the substantially rectified third and fourth lines of weakness of the front and rear sides extend essentially parallel to the bottom edge and / or the opening edge of the front and rear sides.
  • the weakening line or perforation seam of the front side and / or the perforation seam of the rear side can extend essentially from the respective bottom end, in particular to the opening end of the front or rear side.
  • the front and back weakening line or perforations may also be beneficial for the front and back weakening line or perforations to be further spaced from the adjacent second side edges of the front and back than from the first one adjacent to each other Side margins of front and back.
  • first, second, and / or third front and back weakening lines may be spaced farther from the second side edges of the front and back faces than the first side edges of the front and back faces, respectively.
  • the first and second weakening lines or perforation seams of front and back have a distance from the first side edge of front and back, which lies in the range of 1/8 to 3/8 of the width of the bag.
  • the third and fourth weakening lines of the front and rear sides are further spaced from the bottom edges or the opening side edges of the front and back than from the opening side and bottom edges, respectively, of the front and rear sides.
  • each of the third and fourth front and back weakening lines may be substantially at a distance from the opening side edge or the bottom edge of the front and back sides, in the range of 1/8 to 3/8 of the length of the bag lies.
  • the first and second lines of weakening of the front and back can preferably be arranged in the region which is folded in each case from the inner fold of the first side wall element, in particular the side gusset of the first side wall element, extending to the inner fold of the second side wall element, in particular the side fold of the second side wall element.
  • the lines of weakness may also be slightly in the area of the front or back overlapping the folded gusset, for example up to 10 mm, preferably not more than 5 mm apart from the inner edge of the gusset.
  • the opening edge or the opening end of the front side of the bag lies below the opening edge of the rear side. This can be provided be that the longitudinal extent of the back, measured from the bottom end to the opening end, is greater than the longitudinal extent of the front, measured from the bottom end to the opening end.
  • the portion of the back side extending from the opening end of the front side to the opening end of the back side may be used to cover or wrap or roll up the packaged food from above.
  • This protruding portion of the back can thus serve as a cover or closure of the bag.
  • such bags are of particular advantage, in which the longitudinal extent of the back, measured from the bottom end to the opening end, at least twice, in particular at least three times as large as the longitudinal extent of the front, measured from the bottom end to the opening end.
  • the line of weakness extends over the entire length of the shorter front side from the bottom to the opening side edge, while the hereby cooperating weakening line of the back extends from the bottom edge in the direction of the opening side edge, without this to reach.
  • the weakening line on the back side in exactly the same length as the weakening line on the shorter front side.
  • the weakening line of the backside may also be made shorter or, preferably, longer than the weakening line of the shorter front side without again reaching the opening side edge of the rear side.
  • the information for the front can also apply vice versa for the back and the information for the back and vice versa for the front.
  • Bags according to the invention are preferably based essentially on a plastic, paper and / or composite paper material.
  • a plastic material preferably a transparent plastic film material, for example made of PP, PE or PET.
  • the front side and / or the rear side can also be provided with at least one viewing window be made of a transparent plastic film material.
  • the perforation seam also, if required structurally, run through the viewing window material.
  • the viewing window may also be an integral part of the composite paper material. This is achieved by partially omitting the paper web, whereby the film layer of the composite paper material is exposed.
  • Laminated paper materials are generally laminates of paper and plastic film webs which have been laminated on one another.
  • Laminated paper materials in the context of the present invention also include laminates of paper and metal foil webs, for example aluminum foil webs, or laminates of paper, plastic and metal foil webs, for example aluminum foil webs, or laminates of plastic and metal foil webs, for example aluminum foil webs.
  • the wall materials used for the bag can also identify a whole or in sections in a regular or irregular pattern a variety, in particular at least 15, perforations, slots, tears.
  • These openings are generally intended to increase the breathability of the bag so that, for example, warm, moist air can escape from the sealed bag and fresh or cool, relatively dry air can enter the bag into the packaged food product. In this way, it is possible on the one hand to prevent wetting through, ie a sticky consistency, and on the other hand drying out of the packaged products.
  • the described wall openings are at an average distance of their 5 to 25 mm, for example 10 mm, before. These openings may, for example, have an average area of 0.5 to 2 m 2 .
  • the bags according to the invention can also comprise a bag bottom element which connects the, in particular the bottom end of, the front side to the rear side, in particular the bottom end, wherein the bottom element has at least one further weakening line, in particular perforation seam, which in Operative connection with the first or second weakening line of front and back stands.
  • the weakening line or perforation seam of the bottom element connects the weakening lines or perforation seams of front and back at their bottom ends.
  • the bags according to the invention may be provided with side wall elements between the first side edges of front and back and / or the second side edges of front and back.
  • the side elements can represent gussets, which extend from the bottom end of the front and back. It is also possible that the side walls comprise at least two or more gussets.
  • the first side wall element has at least one tenth weakening line, in particular perforation seam, which is operatively connected to the third and / or fourth weakening line of the front and back side and / or the second side wall element via at least one eleventh line of weakness, in particular perforation, has, which is in operative connection with the third or fourth line of weakness of the front and back.
  • the bag according to the invention is formed essentially in one piece.
  • the object underlying the invention is further achieved by a method for producing a bag according to the invention comprising the steps mentioned in claim 15.
  • first and second lines of weakness 1 ⁇ 8 to 3 ⁇ 8 of the width of the bag are spaced apart from the side edge so that they are substantially rectified in the finished bag on the front and rear sides, respectively, and the substantially rectified lines of weakness in particular, in each case at least in sections, in particular for the most part, of overlapping, mutually overlapping, opposing areas of the front and rear sides.
  • first and the second weakening line are so spaced from each other on the continuous web, that they are arranged in the finished bag on the front or on the back so that they are to bring to each other substantially to the plant and especially on the same line.
  • Dividing lines in the sense of the invention are e.g. Lines of weakness that may be basically implemented, such as the lines of weakness described above. Although regularly mounted transversely to the continuous web and to the transport direction of the continuous web, they do not represent predetermined breaking points during regular transport of the continuous web. Only with additional stress separation takes place along the endless web into separate segments, from which subsequently the final pocket is formed.
  • the one-piece design of the bag according to the invention allows extremely efficient mass production, even if this bag is to be executed with side walls, such as gussets.
  • a paper web spaced from the first side edge and parallel to it can be continuously provided with a perforated seam by means of a suitable tool.
  • the paper web can be cut or punched into rectangular segments, whereupon a portion of the bag is turned over to form a preferably perpendicular to the side edges extending fold, which forms the bottom edge of the front and back.
  • the folded first and second side edges of the front and back can then be attached to each other, for example, glued.
  • the perforation seams of the front and back can be easily superimposed.
  • FIG. 1 is a schematic plan view of a bag 1 according to the invention can be seen.
  • the bag 1 is a gusseted bag which is shown in the folded state.
  • the front side 2 has an opening-side edge 4, a bottom-side edge 6, and the opposing first and second side edges 8 and 10.
  • the bag has a back 12 having an opening-side end 14, a bottom-side end 16, and opposing first and second side edges 18 and 20.
  • the bottom side edges 6 and 18 of the front and rear sides substantially coincide and form an envelope fold.
  • the substantially one-piece, the bag 1 forming film web has been folded so that the front and back 2 and 12 come to rest on each other.
  • the bag is made of a composite paper made of a paper layer and a laminated plastic film layer. While the paper layer faces the observer at the front side 2, the portion 30 of the rear side 12 which is not covered by the front side, faces the laminated plastic material.
  • the side edges of front and back side gussets join. Here are in the side edge regions where the gussets 22 and 24 of the back 12 coincide with the gussets 26 and 28 of the front 2 together, preferably by means of gluing.
  • the gussets 26 and 28 are, as they are present on the inside of the front side 2 and thus covered by this, have been identified by dotted lines 27 and 29 respectively.
  • the bag can be easily unfolded to accommodate even larger food products extending, for example, from the first side edge to the second side edge of the bag.
  • the front and back sides 2 and 12 are not uniform in dimension. Rather, the opening-side end 14 of the rear side 12 projects far beyond the opening-side end 4 of the front side 2.
  • This additional provided by the back 12 section 30 can be used to cover the present in the bag food product or to wrap, whereby at least partially creates a multi-layered construction of the package. This multi-ply has proven to be very beneficial, especially in moist or very greasy foods, but can be safely prevented by wetting moisture or leakage of fat.
  • perforation seams 32 and 34 are present on the front side 2 and the back side 12 of the bag 1. Both perforation seams extend in the illustrated embodiment from the respective bottom side to the opening side end of the front and back. If you put the front and back 2 and 12 together, come in the illustrated embodiment, the perforation seams 32 and 34 substantially to the plant, ie they are superimposed. Perforation seams 32 and 34 are substantially parallel to the front and back side edges and spaced farther from the second side edges of front and back than from the first side edges of front and back. If there is now a food product in the bag 1, advantageously wrapped with the section 30, can be easily torn off a bag section along the perforations the food is partially exposed.
  • FIG. 2 shows an alternative embodiment of a bag 1 according to the invention, in which unlike the bag according to FIG. 1 the front side 2 occupies a larger area relative to the rear side 12, as a result of which the free section 30 of the rear side 12 decreases.
  • FIGS. 3 a) to e disclose by way of example and in simplified form the production process of a bag 1 according to the invention, as in FIG. 1 shown.
  • a so-called continuous composite paper web 3 is provided ( Fig. 3a )), in which via a suitable perforation a parallel to the side edges extending perforation 33 is inserted ( Fig. 3b )).
  • the marginal areas of the composite paper web are also automatically folded over or folded in order to form side gussets ( FIG. 3 c) ).
  • the steps 3 b) and 3 c) can also be carried out in the reverse order or at the same time.
  • the film web 3 is severed perpendicular to the side edges in such a way that substantially rectangular sections 5 are obtained with a length extension corresponding to the sum of the front and back lengths (see FIG. 3 d) ). Then, a portion of the separated film web to form an envelope fold 7, (whose position is indicated by dashes in Fig. 3d )).
  • an adhesive has been applied at least in sections beforehand. By pressing on each other in each case in area superimposed gussets, a sufficient bond to form a bag according to the invention is produced ( Fig. 3e )). Since the separated film web has not been folded in the middle, an overhanging portion 30 remains at the back side 12. As shown could, the bag 1 according to the invention can be obtained via only four process steps.
  • FIGS. 4a) to f disclose by way of example in simplified form an alternative production process of a bag 1 according to the invention.
  • a so-called endless composite paper web 3 is made available ( Fig. 3a ) into which transverse perforation seams 40 are inserted by means of a suitable perforation tool from the first side edge to the opposite second side edge ( Fig. 4b ).
  • a parallel to the side edge extending perforation 33 is inserted via another perforation tool ( Fig. 4c ).
  • Steps 4 b) and 4 c) can also be implemented in reverse order.
  • a next step individual, substantially rectangular sections 5 are separated from the continuous web along the perforation seams 40, for example by means of tensile stress.
  • the tensile stress acting on the bottom reproduced perforation 40 can be selectively increased, resulting in a tearing off to form a so-called blunt edge.
  • the edges created in this manufacturing process are usually not suitable to produce cuts to the operator or the user.
  • the separated sections 5 can then be formed to form an envelope fold 7 (whose position is indicated by dashes in FIG FIG. 4 e) be marked).
  • an adhesive has been previously applied at least in sections.
  • FIG. 4 f By pressing the superimposed side edges together, a sufficient bond is produced to form a bag according to the invention ( FIG. 4 f) , Since the separated film web has not been folded in the middle, a protruding portion 30 remains at the back 12. Unlike the bag according to FIG. 3 e) the bag according to FIG. 3f) does not have gussets.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Bag Frames (AREA)
  • Packages (AREA)
  • Bakery Products And Manufacturing Methods Therefor (AREA)

Claims (18)

  1. Sac à base de matériau en papier et/ou en papier composite destiné à la réception d'aliments, en particulier produit de boulangerie non cuit ou précuit, produit de boulangerie entièrement cuit, pizzas, parts de pizza, beignets, crêpes, burgers, galettes de pommes de terre râpées, sandwichs et similaires, comprenant un côté avant avec un bord côté ouverture et un bord côté fond ainsi qu'un premier bord latéral et un deuxième bord latéral opposé, et un côté arrière avec un bord côté ouverture et un bord côté fond ainsi qu'un premier bord latéral et un deuxième bord latéral opposé, le côté avant et le côté arrière étant, dans la zone de leurs bords côté fond, raccordés au moins par tronçons directement ou indirectement ainsi que raccordés dans la zone de leurs premier ou deuxième bords latéraux respectivement adjacents entre eux au moins par tronçons directement ou indirectement, le sac présentant côté avant au moins une première ligne de faiblesse, en particulier une ligne de perforations, et le sac présentant côté arrière au moins une deuxième ligne de faiblesse, en particulier une ligne de perforations, qui s'étendent dans la même direction à partir de l'extrémité côté ouverture du côté avant et du côté arrière, ou à distance de cette extrémité, jusqu'à, ou en direction de, l'extrémité côté fond du côté avant et du côté arrière, caractérisé en ce que
    les première et deuxième lignes de faiblesse de même direction du côté avant et du côté arrière présentent un écart aux premiers bords latéraux du côté avant et du côté arrière qui s'inscrit dans la plage de 1/8ème à 3/8ème de la largeur du sac, et en ce que le bord d'ouverture du côté avant est situé au-dessous du bord d'ouverture du côté arrière.
  2. Sac selon la revendication 1, caractérisé en ce que
    les lignes de faiblesse respectivement de même direction du côté avant et du côté arrière présentent un écart moyen non supérieur à 30 mm, en particulier non supérieur à 15 mm.
  3. Sac selon la revendication 1 ou 2, caractérisé en ce que
    les lignes de faiblesse respectivement de même direction du côté avant et du côté arrière peuvent être amenées en appui l'une sur l'autre au moins par tronçons, en particulier le long d'aires de surface du côté avant et du côté arrière qui sont respectivement opposées, et sont en particulier situées sur la même ligne.
  4. Sac selon une des revendications précédentes, caractérisé en ce que les lignes de faiblesse respectivement de même direction du côté avant et du côté arrière sont parallèles, au moins par tronçons, en particulier le long d'aires de surface du côté avant et du côté arrière qui sont respectivement opposées.
  5. Sac selon une des revendications précédentes, caractérisé en ce que les lignes de faiblesse sont, au moins pour la plus grande partie, en particulier complètement, rectilignes, ondulées ou en zigzag.
  6. Sac selon une des revendications précédentes, caractérisé en ce que le sac présente, côté avant et côté arrière, respectivement au moins une première ou une deuxième ligne de faiblesse, en particulier une ligne de perforations, qui s'étendent à partir de l'extrémité côté fond du côté avant respectivement du côté arrière jusqu'à l'extrémité côté ouverture du côté avant respectivement du côté arrière, ou
    en ce que le sac présente, côté avant et côté arrière, respectivement au moins une première ou une deuxième ligne de faiblesse, en particulier une ligne de perforations, qui s'étendent à partir de l'extrémité côté fond du côté avant respectivement du côté arrière en direction de l'extrémité côté ouverture du côté avant respectivement du côté arrière, ou
    en ce que le sac présente, côté avant, au moins une première ligne de faiblesse, en particulier une ligne de perforations, qui s'étend à partir de l'extrémité côté ouverture du côté avant en direction de l'extrémité côté fond du côté arrière, et en ce que le côté arrière présente au moins une deuxième ligne de faiblesse, en particulier une ligne de perforations, qui s'étend à partir de l'extrémité côté fond en direction de l'extrémité côté ouverture, ou
    en ce que le sac présente, côté avant, au moins une première ligne de faiblesse, en particulier une ligne de perforations, qui s'étend à partir de l'extrémité côté fond en direction de l'extrémité côté ouverture, en ce que le côté arrière présente au moins une deuxième ligne de faiblesse, en particulier une ligne de perforations, qui s'étend à partir de l'extrémité côté ouverture en direction de l'extrémité côté fond, ou
    en ce que le sac présente, côté avant, au moins une première ligne de faiblesse, en particulier une ligne de perforations, qui s'étend à partir de l'extrémité côté ouverture jusqu'à l'extrémité côté fond, et en ce que le côté arrière présente au moins une deuxième ligne de faiblesse, en particulier une ligne de perforations, qui s'étend à distance de l'extrémité côté ouverture en direction de l'extrémité côté fond, ou
    en ce que le sac présente, côté avant, au moins une première ligne de faiblesse, en particulier une ligne de perforations, qui s'étend à distance de l'extrémité côté ouverture en direction de l'extrémité côté fond, et en ce que le côté arrière présente au moins une deuxième ligne de faiblesse, en particulier une ligne de perforations, qui s'étend à partir de l'extrémité côté ouverture jusqu'à l'extrémité côté fond, ou
    en ce que le sac présente, côté avant, au moins une première ligne de faiblesse, en particulier une ligne de perforations, qui s'étend à partir de l'extrémité côté ouverture en direction de l'extrémité côté fond, et en ce que le côté arrière présente au moins une deuxième ligne de faiblesse qui s'étend à distance de l'extrémité côté ouverture en direction de l'extrémité côté fond, ou
    en ce que
    le sac présente, côté avant, au moins une première ligne de faiblesse, en particulier une ligne de perforations, qui s'étend à partir de l'extrémité côté fond en direction de l'extrémité côté ouverture, et en ce que le côté arrière présente au moins une deuxième ligne de faiblesse, en particulier une ligne de perforations, qui s'étend à distance de l'extrémité côté ouverture en direction de l'extrémité côté fond, ou
    en ce que le sac présente, côté avant, au moins une première ligne de faiblesse, en particulier une ligne de perforations, qui s'étend à distance de l'extrémité côté ouverture en direction de l'extrémité côté fond, et en ce que le côté arrière présente au moins une deuxième ligne de faiblesse, en particulier une ligne de perforations, qui s'étend à partir de l'extrémité côté ouverture en direction de l'extrémité côté fond, ou
    en ce que le sac présente, côté avant, au moins une première ligne de faiblesse, en particulier une ligne de perforations, qui s'étend à distance à partir de l'extrémité côté ouverture en direction de l'extrémité côté fond, et en ce que le côté arrière présente au moins une deuxième ligne de faiblesse, en particulier une ligne de perforations, qui s'étend à partir de l'extrémité côté fond en direction de l'extrémité côté ouverture.
  7. Sac selon une des revendications précédentes, caractérisé en ce que les lignes de faiblesse respectivement de même direction du côté avant et du côté arrière s'étendent, en particulier au moins par tronçons, sur des aires de surface opposées du côté avant respectivement du côté arrière qui se chevauchent.
  8. Sac selon une des revendications précédentes, caractérisé en ce que les lignes de faiblesse de même direction du côté avant et du côté arrière sont parallèles au premier et/ou au deuxième bord latéral du côté avant respectivement du côté arrière.
  9. Sac selon une des revendications précédentes, caractérisé en ce que l'étendue longitudinale du côté arrière, mesurée à partir de l'extrémité côté fond jusqu'à l'extrémité côté ouverture, est au moins deux fois plus grande, en particulier au moins trois fois plus grande que l'étendue longitudinale du côté avant, mesurée à partir de l'extrémité côté fond jusqu'à l'extrémité côté ouverture.
  10. Sac selon une des revendications précédentes, comprenant également un élément de fond de sac qui raccorde le côté avant, en particulier l'extrémité côté fond du côté avant, au côté arrière, en particulier à l'extrémité côté fond du côté arrière, l'élément de fond disposant d'au moins une ligne de faiblesse supplémentaire, en particulier une ligne de perforations, qui est en liaison opérationnelle avec la première et/ou la deuxième ligne de faiblesse du côté avant et du côté arrière.
  11. Sac selon une des revendications précédentes, comprenant également des premier et/ou deuxième éléments de paroi latérale entre les premiers bords latéraux du côté avant et du côté arrière respectivement entre les deuxièmes bords latéraux du côté avant et du côté arrière.
  12. Sac selon la revendication 11, caractérisé en ce que
    les éléments de paroi latérale constituent des plis latéraux qui s'étendent en particulier à partir de l'extrémité côté fond du côté avant et du côté arrière.
  13. Sac selon la revendication 11 ou 12, caractérisé en ce que
    les première et/ou deuxième lignes de faiblesse du côté avant respectivement du côté arrière sont placées dans la zone qui s'étend, dans l'état respectivement plié, à partir du pli intérieur du premier élément de paroi latérale, en particulier du pli latéral du premier élément de paroi latérale, jusqu'au pli intérieur du deuxième élément de paroi latérale, en particulier du pli latéral du deuxième élément de paroi latérale.
  14. Sac selon une des revendications précédentes, caractérisé en ce que le sac est constitué d'une seule pièce.
  15. Procédé de fabrication d'un sac selon une des revendications 1 à 14, comprenant les étapes :
    a. mise à disposition d'une bande continue d'un matériau de sac,
    b. mise en place d'au moins une première et d'au moins une deuxième ligne de faiblesse distante de la première, en particulier ligne de perforations, respectivement le long de l'orientation longitudinale de la bande continue, les lignes de faiblesse étant écartées d'une paroi latérale de 1/8ème à 3/8ème de la largeur du sac terminé,
    c. mise en place, de façon distante, de lignes de séparation, en particulier de lignes de perforations, le long de l'orientation transversale de la bande continue, qui s'étendent au moins par tronçons à partir du premier bord latéral jusqu'au deuxième bord latéral,
    d. formation d'un tuyau à partir de la bande continue par raccordement au moins par tronçons des première et deuxième zones latérales avec formation de côté avant et de côté arrière,
    e. éventuellement formation de premier et deuxième plis latéraux opposés l'un à l'autre,
    f. découpe de segments séparés de la bande continue le long des lignes de séparation transversales, en particulier par contrainte de traction,
    g. formation d'une zone de fond fermée sur l'extrémité côté fond du côté avant et du côté arrière.
  16. Procédé selon la revendication 15, caractérisé en ce que
    les première et deuxième lignes de faiblesse sont mises en place de façon distante de telle sorte qu'elles sont situées dans la même direction, dans le sac fini, sur le côté avant respectivement le côté arrière, et les lignes de faiblesse de même direction du côté avant et du côté arrière s'étendant, en particulier respectivement au moins par tronçons, en particulier pour la plus grande partie, sur des aires de surfaces opposées du côté avant respectivement du côté arrière qui se chevauchent.
  17. Procédé selon la revendication 16 ou 17, caractérisé en ce que la première et la deuxième ligne de faiblesse sont mises en place de façon distante l'une de l'autre sur la bande continue de telle sorte que, dans le sac fini, elles sont disposées sur le côté avant respectivement sur le côté arrière de telle sorte qu'elles doivent être mises en appui l'une sur l'autre et sont en particulier situées sur la même ligne.
  18. Utilisation du sac selon une des revendications 1 à 14 pour l'emballage ou la réception d'aliments, en particulier produit de boulangerie non cuit ou précuit, produit de boulangerie entièrement cuit, pizzas, parts de pizza, beignets, crêpes, burgers, galettes de pommes de terre râpées, sandwichs et similaires.
EP12004536.4A 2007-06-06 2008-06-05 Sac destiné à la réception d'aliments, comprenant des lignes de perforation Revoked EP2535295B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12004536T PL2535295T3 (pl) 2007-06-06 2008-06-05 Torba do przyjmowania artykułów spożywczych, obejmująca perforowany szew

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007026807A DE102007026807B4 (de) 2007-06-06 2007-06-06 Beutel zur Aufnahme von Lebensmitteln, enthaltend eine Schwächungslinie, Verfahren zur Herstellung solcher Beutel und deren Verwendung für die Verpackung oderAufnahme von Lebensmitteln
EP08010253A EP2000419A3 (fr) 2007-06-06 2008-06-05 Sac destiné à la réception d'aliments, comprenant une couture de perforation

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP08010253.6 Division 2008-06-05
EP08010253A Division EP2000419A3 (fr) 2007-06-06 2008-06-05 Sac destiné à la réception d'aliments, comprenant une couture de perforation

Publications (2)

Publication Number Publication Date
EP2535295A1 EP2535295A1 (fr) 2012-12-19
EP2535295B1 true EP2535295B1 (fr) 2014-08-27

Family

ID=39765043

Family Applications (2)

Application Number Title Priority Date Filing Date
EP12004536.4A Revoked EP2535295B1 (fr) 2007-06-06 2008-06-05 Sac destiné à la réception d'aliments, comprenant des lignes de perforation
EP08010253A Ceased EP2000419A3 (fr) 2007-06-06 2008-06-05 Sac destiné à la réception d'aliments, comprenant une couture de perforation

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP08010253A Ceased EP2000419A3 (fr) 2007-06-06 2008-06-05 Sac destiné à la réception d'aliments, comprenant une couture de perforation

Country Status (6)

Country Link
EP (2) EP2535295B1 (fr)
AT (1) AT13550U1 (fr)
DE (1) DE102007026807B4 (fr)
DK (2) DK2535295T3 (fr)
ES (1) ES2523820T3 (fr)
PL (1) PL2535295T3 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010004435U1 (de) * 2010-03-31 2010-07-29 Weber Verpackungen Friedrich Weber Nachf. Gmbh & Co. Kg Papierbeutel
BE1019648A5 (fr) * 2010-09-14 2012-09-04 Segers Luc Cornet de frites avec trous d'aeration et compartiment a sauce integre.
DE102011115090A1 (de) * 2011-10-07 2013-04-11 Weber Verpackungen Friedrich Weber Nachf. Gmbh & Co. Kg Verpackungsbeutel für Nahrungsmittel
DE102012107671A1 (de) 2012-08-21 2014-06-12 Eller Foodpackaging Gmbh Beutel zur Aufnahme eines Brötchens, Sandwiches oder dergleichen
US9180999B2 (en) 2013-08-16 2015-11-10 Deja S. Castro Perforated bags

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3570751A (en) * 1969-07-03 1971-03-16 Wyomissing Corp Tear-open package
US4777054A (en) * 1986-11-06 1988-10-11 Perfect Holdings, Ltd. Easy open package
US4915235A (en) * 1989-05-12 1990-04-10 International Paper Company Tear panel french fry carton
US5335996A (en) 1993-07-08 1994-08-09 Bagcraft Corporation Of America Openable bag construction
GB2283007A (en) * 1993-10-19 1995-04-26 Mars Inc Boil-in-bag sachet with tear-off strip
US5988882A (en) 1997-09-08 1999-11-23 Bagcraft Packaging, L.L.C. Openable bag construction
FR2771718A1 (fr) * 1997-12-03 1999-06-04 Dupuy Francois Chaygneaud Conditionnement, notamment sachet, a ouverture facilitee, procede de fabrication et installation pour la mise en oeuvre dudit procede
US6679629B1 (en) * 1999-11-23 2004-01-20 Aparellaje Electrico, S.A. Device for manually opening flexible packages
NZ507233A (en) * 2000-10-02 2003-06-30 Michael Clements Markham Multi-layered bag and method of manufacture
JP2003335348A (ja) 2002-05-15 2003-11-25 Nobuhiro Kawabata 食品等の包装袋
JP2004142165A (ja) 2002-10-22 2004-05-20 Toyobo Co Ltd 圧縮成形用材料
DE102005033774A1 (de) * 2005-07-15 2007-01-18 Helmut Obieglo Aufnahmeeinrichtung für Stoffe und Medien, insbesondere Frittentüte

Also Published As

Publication number Publication date
PL2535295T3 (pl) 2015-02-27
ES2523820T3 (es) 2014-12-01
DK2535295T3 (en) 2014-12-08
EP2000419A3 (fr) 2009-02-18
DE102007026807B4 (de) 2011-03-24
EP2000419A2 (fr) 2008-12-10
DE102007026807A1 (de) 2008-12-11
EP2535295A1 (fr) 2012-12-19
DK201200180U1 (da) 2013-01-11
AT13550U1 (de) 2014-03-15
DK201200180U3 (da) 2013-01-25

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