WO2021148085A1 - Sac dont le contenu est visible de tous côtés et procédé de fabrication d'un sac de ce type - Google Patents

Sac dont le contenu est visible de tous côtés et procédé de fabrication d'un sac de ce type Download PDF

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Publication number
WO2021148085A1
WO2021148085A1 PCT/DE2021/100055 DE2021100055W WO2021148085A1 WO 2021148085 A1 WO2021148085 A1 WO 2021148085A1 DE 2021100055 W DE2021100055 W DE 2021100055W WO 2021148085 A1 WO2021148085 A1 WO 2021148085A1
Authority
WO
WIPO (PCT)
Prior art keywords
hose
bag
endless
closure
side edges
Prior art date
Application number
PCT/DE2021/100055
Other languages
German (de)
English (en)
Inventor
Reinhard Krannig
Original Assignee
Reinhard Krannig
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 Reinhard Krannig filed Critical Reinhard Krannig
Publication of WO2021148085A1 publication Critical patent/WO2021148085A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/01—Ventilation or drainage of bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/25—Surface scoring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/86—Forming integral handles or mounting separate handles
    • B31B70/872—Forming integral handles on bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/86—Forming integral handles or mounting separate handles
    • B31B70/876—Forming integral handles or mounting separate handles involving application of reinforcement strips or patches; involving reinforcements obtained by folding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D1/00—Multiple-step processes for making flat articles ; Making flat articles
    • B31D1/0031—Multiple-step processes for making flat articles ; Making flat articles the articles being paper nettings, e.g. by slitting and expanding webs or sheets
    • 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
    • B65D29/00—Sacks or like containers made of fabrics; Flexible containers of open-work, e.g. net-like construction
    • B65D29/04—Net-like containers made of plastics material
    • 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
    • B65D31/08—Bags or like containers made of paper and having structural provision for thickness of contents with block bottoms
    • 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
    • B65D33/04—Windows or other apertures, e.g. for viewing contents
    • 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
    • B65D33/06—Handles
    • B65D33/08—Hand holes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B31B2155/003—Flexible containers made from webs starting from tubular webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/20—Shape of flexible containers with structural provision for thickness of contents

Definitions

  • bags single-use carrier bags, single-use bags and single-use bags (hereinafter referred to as bags) is very convenient, especially when purchasing and transporting food such as fruit, vegetables or baked goods, and is therefore also widespread.
  • the most common form of bags used in trade are the so-called shirt carrier bags, which are preferably made from very thin and at least translucent plastic film.
  • shirt carrier bags which are preferably made from very thin and at least translucent plastic film.
  • Such bags have the advantage that the goods received therein are clearly visible from every angle, so that the type and quantity of the goods can be determined very quickly when packing and weighing the goods, when paying at the checkout and when unpacking.
  • Paper carrier bags are currently seen as an alternative. However, these have some disadvantages compared to the plastic carrier bags. Most noticeable is that the goods contained in it are not visible from the outside. This can be countered by making at least sections of the paper carrier bags from transparent plastic sections, which then serve as viewing windows. However, the desired plastic-free carrier bag cannot be realized in this way. Furthermore, a paper carrier bag, without taking additional measures, is completely inelastic compared to a plastic carrier bag. The widening of a paper carrier bag is usually only possible within the framework of a predetermined fold.
  • the disclosed air-permeable container consists of an inelastic and sheet-like material, such as. B. paper, and can be in the form of a tote bag, pouch or sack.
  • the container is provided over at least a part of the surface with these penetrating slots, which have almost no extension transversely to the slot direction. When slitting there is therefore no material waste.
  • the straight slots in a parallel arrangement to the main loading direction allow, with high strength in the main loading direction, an elastic volume increase of the container in a direction deviating from the main loading direction.
  • the container does not experience any expansion in the main load direction.
  • the stability in the main loading direction is increased in that parts of the container remain unprotected over the entire length of the main loading direction.
  • the location of a desired enlargement of the container can be specifically influenced by a selected arrangement of slotted partial areas on the surface.
  • the container can be made by gluing and can have reinforced handles or handles.
  • other slot shapes such as. B. nested or intersecting slots disclosed, with which the elasticity of the slotted material can be influenced substantially.
  • An expansion of the container in the main load direction should be avoided as far as possible by the arrangement and shape of the slots.
  • the main focus of the invention lies in a packaging that is not hermetically sealed and has the highest possible load-bearing capacity in the main load direction. Good visibility of the packaged contents is not the concern of the container.
  • the object of the invention is to find a bag which consists exclusively of a non-transparent material and the wall of which, when the bag is filled, allows a view of the bag at eye level overleaf.
  • This object is for a bag that can be seen from all sides, formed by a hose-like wall with a closure at a lower end and a grip area at an upper end, the hose-like wall having a plurality of webs arranged in rows and aligned in the same direction and the hose-like wall having completely penetrating slots, through which a network structure is formed, solved in that the slots and the webs run parallel to the closure and the rows each extend over the entire circumference of the extend hose-like wall, so that the bag, depending on the weight of a product located in the bag, expands elastically perpendicular to the closure when it is carried, and the net structure that opens thereby allows a view into the bag.
  • the bag can advantageously consist of a non-transparent material such as paper or a non-woven fabric made of natural fibers, which is completely recyclable.
  • the closure is advantageously formed by an adhesive edge, a seam or a fold, which enables the finished position of a large number of the bags on a roll.
  • the bag fulfills its purpose if a product in the bag is visible through the net structure to such an extent that the product can be identified and, in the case of several individual items, the number can be recognized. Since the network structure formed ends in front of the closure, the visibility is at most marginally limited, but the stability of the closure, the z. B. is designed as an adhesive edge or seam, increased.
  • the stability of the grip area can also be increased in that the net structure formed ends in front of the grip area.
  • the bag is only packed to below the grip area in order to be able to grip the bag easily.
  • the hose-like wall is advantageously made from a blank with two parallel side edges, the side edges being glued together in such a way that the webs are arranged completely overlapping one another, whereby an elasticity created by the network structure is maintained over the circumference of the hose-like wall.
  • the dividing lines each forming the lower end of the tubular wall of one of the bags and the upper end of the tubular wall of another of the bags, the dividing lines each corresponding to one of the rows be able.
  • the endless web is not slit below the dividing lines in a section which represents one of the grip areas and / or is not slit above the dividing lines in a further section in which one of the closures is produced.
  • the object for a method with a method for producing a bag that can be seen from all sides and has a hose-like wall with a closure at a lower end and a grip area at an upper end is achieved with the following method steps:
  • the dividing lines transversely to the hose axis and separating along the dividing lines, with which the endless hose is separated into the hose-like walls, the dividing lines each being able to correspond to one of the rows.
  • the object for a method is achieved with a method for positioning a bag with a tube-like wall that can be viewed from all sides and with a closure at a lower end and a grip area at an upper end with the following method steps:
  • FIG. 1a shows a simple embodiment of a bag according to the invention as a flat bag
  • FIG. 1b shows a detail of the top view of a bag in the unstretched state
  • FIG. 1c shows a detail of the top view of a bag in the extended state
  • FIG. 2a-2d show a flow chart for a first embodiment of a method for producing bags according to the invention according to FIG. 1a
  • FIG. 3a-3e a flow chart for a second embodiment of a method for producing bags according to the invention according to FIG. 4b with an additional handle cutout
  • FIG. 4a-4b two embodiments of a bag according to the invention as a gusset bag
  • FIG. 5 a further embodiment of a bag according to the invention as a flat bag with a reinforced grip area
  • FIG. 6 shows an embodiment of a bag according to the invention as a block bottom bag
  • 7a-7e show a flow chart for a further embodiment of a method for producing bags according to FIG. 5 with an additional handle section
  • FIG. 8a-8d show a flow chart for a further embodiment of a method for producing bags according to FIG. 8d.
  • a bag according to the invention basically contains, as shown in the simplest form in FIG. 1a, a hose-like wall 2 with a closure 1 at a lower end
  • the hose-like wall 2 is slotted by a multiplicity of slots 3.1 arranged in rows 3, aligned in the same direction parallel to the closure 1 and completely penetrating the hose-like wall 2. The webs remaining between the slots 3.1
  • the bag is filled with a filling material, it is stretched in the longitudinal direction RL and the network structure changes into a stretched state, as shown in FIG. 1c. With increasing stretching, the slots 3.1 open and form holes through which the filling material can be seen all around. Depending on the weight of the filling material for which the bag is intended, the material properties and the thickness of the material for the bag can be selected and the dimensions of the slots 3.1 and webs
  • the slots 3.1 run parallel to the closure 1, which is arranged horizontally in the usual way when the bag is being carried. It is also essential to the invention that the hose-like wall 2 is provided with the slots 3.1 over its entire circumference, so that the bag is evenly elastic depending on the weight of a product in the bag when it is carried perpendicular to the closure 1, at least when it is evenly filled expands. As a result of this expansion, the slots 3.1 are pulled apart and, as with a net, one gets a good view of the bag all around, even if it is made of a non-transparent material. The best view is obtained when the bag is held at eye level. Slitting only partially over the circumference of the bag would lead to a deteriorated design, since the hose-like wall 2 would not be equally expandable over its circumference in the longitudinal direction RL.
  • the slots 3.1 do not have to be formed over the entire length I of the hose-like wall 2. They can advantageously also be limited to a section that lies between the closure 1 and the grip area 7.
  • An unprotected grip area 7 has the advantage that it is easier to grasp and a smoothly outlined grip cutout 4 can advantageously be incorporated.
  • the hose-like wall 2 can advantageously not be slotted at its lower end 2.1, so that the stability of the closure 1, which is advantageously z.
  • the invention is based on the idea of making a bag made of opaque material, such as paper, transparent in this way by means of a network structure that opens to the maximum in the longitudinal direction RL due to the weight of the filling material.
  • the bag could also be made of a transparent material.
  • the effort to make the slots 3.1 in a transparent material would not be used to make the bag visible from all sides, since this property would already be given due to the material.
  • the material for the bag is paper or nonwoven made of natural fibers. This means that the bags are recyclable and are particularly recommended for use in which only a single use is intended.
  • the hose-like wall 2 is only glued to itself at the lower end 2.1, forming an adhesive edge 1a.
  • the adhesive edge 1a here forms the closure 1.
  • the grip area 7 does not differ here from the rest of the tubular wall 2.
  • This simple design of the bag does not only have the The advantage is that it can be completely manufactured as roll goods and then individually separated from a roll, but also that the contents are visible in their entirety when the bag is filled up to the upper end 2.2.
  • FIGS. 2a-2d show a flow chart for a suitable setting method for this purpose.
  • An endless tube 10 with a tube axis 10.0 preferably made of a natural material, is provided.
  • This can be a seamless hose, e.g. B. made of a nonwoven fabric, as shown, or around a tube glued together from one or two endless webs 9, e.g. B. made of paper, act.
  • the endless tube 10 is slit over its entire surface and then sewn orthogonally to the tube axis 10.0 with a seam 1b, which forms the closure 1, at predetermined intervals, which correspond to the later length I of the bag.
  • the endless tube 10 is separated from the roll below the seams 1b along a separating line TL.
  • One of the rows 3 can advantageously be used as the dividing line TL for this purpose.
  • the seam 1b is advantageous as a zigzag -Seam carried out by which at least two of the rows 3 are firmly connected to each other.
  • a roll of bags can be produced by just two process steps, the slitting of the tube-like wall 2 and the sewing at the lower end 2.1.
  • the slotting of the hose-like wall 2 can also be limited to a section which does not border up to the lower and / or the upper end 2.1, 2.2.
  • the bag thus remains stable in the area of the closure 1 and / or in the handle area 7 in which the bag is gripped or in which a handle cutout 4 is made or handles are attached or formed.
  • FIG. 3a-3e show a flow chart for a modified embodiment of the manufacturing method, in which, in comparison to the previously explained embodiment, method steps precede in which the closures 1 are manufactured during the manufacture of the endless tube 10 and in which the endless tube 10 is not completely it is only slotted in sections, so that non-slotted sections remain.
  • These can adjoin the dividing lines TL either from above or from below or, as shown here, enclose the dividing lines TL between them.
  • a dividing line TL, along which the bags can be individually separated from the endless tube 10, is introduced in each of the non-slotted sections.
  • This dividing line TL is advantageously produced with the process step of cutting the slots 3.1 as a slot-web line or a perforation line. If the dividing line TL is formed by a slot-web line, the slots 3.1 are advantageously set short and close to one another in order to be able to destroy the dividing line TL by tearing evenly.
  • the hose-like wall 2 is advantageously folded over once all round at its upper end 2.2 and glued to it, see FIG is slotted, it is advantageous if the webs 3.2 are glued to one another offset from one another, so that the bag in the grip area 7 loses the elasticity created by the slot structure and is solidified.
  • two opposing handle cutouts 4 are present in the handle area 7, which represent interventions for carrying the bag.
  • any form of attaching carrying handles is more complex.
  • a blank 8 that is to say a web configured in the size for the bag, is made available which is folded along fold lines FL so that the side edges 2.3 of the blank 8 preferably overlap in the middle.
  • adhesive was applied to one of the two side edges 2.3 and to a strip 12 along the lower end 2.1, so that the blank 8 is glued along the side edges 2.3 and the lower end 2.1.
  • the glued blanks 8, which now form the hose-like wall 2, are turned over at their upper end 2.2, each forming a circumferential envelope 5.
  • FIGS. 8a-8d a further advantageous embodiment for a manufacturing method is described which differs from the aforementioned mainly in that bags are produced in which the closure 1 is formed by a fold 1c and the dividing line TL does not run parallel but transversely to the closure 1.
  • an endless web 9 with two side edges 2.3 parallel to one another is made available.
  • Adhesive is applied along transverse strips 11 across the side edges 2.3. These each include in the middle a provided dividing line TL, the provided dividing lines TL being at a distance from one another which corresponds to a width b of the bags.
  • the endless web 9 is folded along a fold line FL which bisects the endless web 9 along its length.
  • the two halves of the transverse strips 11 that are formed come to a complete overlap, the endless web 9 being glued to one another along the transverse strips 11 and an endless tube 10, which is open on one side over its length, is formed.
  • the fold 1c formed forms the closures 1 of the bags.
  • the endless tube 10 is then slit and the separating lines TL are introduced, the steps in their sequence being interchangeable. See Fig. 8c.
  • the endless tube 10 With the slitting of the endless tube 10 a plurality of rows 3 arranged in the same direction parallel to the fold 1c webs 3.2 and the tube-like walls 2 completely penetrating slits 3.1 are introduced over its length, through which a network structure is formed.
  • handle cutouts 4 can be made in the handle areas 7 adjoining the side edges 2.3.
  • the endless tube 10 is advantageously not slit over its full width, but rather only up to the grip areas 7.
  • the finished bags can here, as in all the above-described embodiments of the manufacturing process, be placed coherently on a roll, for example in the trade, in order to be separated by a user himself if necessary.
  • a Bag with a fold 1c as closure 1 is shown in FIG. 8d. This bag has the advantage over the above-mentioned designs that the net structure is not interrupted by the closure 1.
  • the steps in the process sequence can be interchanged in many ways for all of the above-described versions of the setting method.
  • the dividing lines TL can be introduced at the same time before or after the protective step.
  • the closure 1 is created as a box bottom 1d after the hose-like walls 2 have been separated, whereas the closure 1 is created as an adhesive edge 1a on an endless web 9 or a blank 8 as a seam 1b on an endless hose 10 or a hose-like wall 2.
  • the described designs of the bags can also be combined.
  • the bag can be completely protected or border the upper and / or lower end 2.2, 2.1 or also have sections at other points that are not protected.
  • What they all have in common and essential for the invention and the desired mode of operation is the circumferential slitting, which leads to a network structure which expands perpendicularly when the filled bag is worn as intended.
  • the particular advantage of the bag is that it can replace transparent plastic bags or bags with transparent plastic windows that are still widely used today, especially as a disposable bag for many purposes.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)

Abstract

L'invention concerne un sac dont le contenu est visible à l'état rempli à travers la paroi tubulaire souple (2) du sac, même lorsque le sac est entièrement constitué d'un matériau opaque, tel que du papier. À cet effet, la paroi tubulaire souple (2) est pourvue de fentes au moins sur une partie dans la direction longitudinale (RL) de sorte qu'une structure en filet est formée sur toute sa périphérie, cette structure en filet étant extensible perpendiculairement à une fermeture (1) dans la direction longitudinale (RL) du sac. L'invention concerne également un procédé de fabrication d'un sac de ce type.
PCT/DE2021/100055 2020-01-22 2021-01-18 Sac dont le contenu est visible de tous côtés et procédé de fabrication d'un sac de ce type WO2021148085A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020101425.2 2020-01-22
DE102020101425.2A DE102020101425A1 (de) 2020-01-22 2020-01-22 Rundum einsehbarer Beutel und Verfahren zur Herstellung eines solchen Beutels

Publications (1)

Publication Number Publication Date
WO2021148085A1 true WO2021148085A1 (fr) 2021-07-29

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Application Number Title Priority Date Filing Date
PCT/DE2021/100055 WO2021148085A1 (fr) 2020-01-22 2021-01-18 Sac dont le contenu est visible de tous côtés et procédé de fabrication d'un sac de ce type

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Country Link
DE (1) DE102020101425A1 (fr)
WO (1) WO2021148085A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6912256U (de) 1968-03-26 1969-10-23 Brevetex S A Luftdurchlaessiger behaelter und verfahren zu siener herstellung
FR2306817A2 (fr) * 1975-04-07 1976-11-05 Fayard & Ravel Feuille notamment pour emballages et elements de conditionnement
WO2014066755A1 (fr) * 2012-10-26 2014-05-01 Automated Packaging Systems, Inc Sacs extensibles et leurs procédés de formation et d'utilisation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6912256U (de) 1968-03-26 1969-10-23 Brevetex S A Luftdurchlaessiger behaelter und verfahren zu siener herstellung
FR2306817A2 (fr) * 1975-04-07 1976-11-05 Fayard & Ravel Feuille notamment pour emballages et elements de conditionnement
WO2014066755A1 (fr) * 2012-10-26 2014-05-01 Automated Packaging Systems, Inc Sacs extensibles et leurs procédés de formation et d'utilisation

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Publication number Publication date
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