JP6323944B2 - Breathable multilayer paper bag for easy opening - Google Patents

Description

The present invention relates to an air-permeable multilayer paper bag that can be easily opened to store granular materials derived from food such as rice, wheat, corn starch, starch, feed, plastic resin, cement, lime, carbon black, etc. More specifically, the air-permeable paper prevents the contents from being steamed or condensed, and satisfies the complete prevention of leakage of the granular material, and then opens with the over tape for opening. Can be easily and completely performed, and can be easily attached to the other opening end with a sealing over tape, and can be easily opened by hooking a finger on the opening edge of the innermost layer. It relates to a breathable multilayer paper bag.

  As a conventional multi-layer paper bag that can be easily opened, as shown in FIG. 14, a multi-layer paper cylinder 50 having two or more layers is folded, and one open end 51 of the multi-layer pipe 50 is parallel to the opening edge 52. A fold line 53 is provided, one open end 51 is folded along the fold line 53, the one folded piece 54 is covered and pasted with an opening over tape 56 with a cut tape 55, and one open end 51 It is known that the other open end 57 of the folded multi-layer cylinder 50 is previously provided with a crease 59 parallel to the opening edge 58.

  Then, from the other open end 57, for example, after filling the bag with a granular material derived from foods such as rice, wheat, corn starch, starch, the other open end along the fold 59 provided in advance. The opening edge 58 of the other folded piece 60 is covered with a sealing over tape 61 previously coated with a heat-adhesive adhesive, and attached with a heat sealer, and the other opening end 57 is folded. Is to be sealed.

Japanese Utility Model Publication No. 55-86741

  However, the conventional easy-open multi-layer paper bag shown in FIG. 14 is folded along the folds 53 and 59 in which one and the other opening end portions 51 and 57 are both attached in advance, and the opening edge 52 in the one folding piece 54. Is covered with an opening over tape 56 with a cut tape 55 and attached and closed with an adhesive, and the opening edge 58 of the other folding piece 60 is applied in advance with a thermal adhesive adhesive applied inside. Since it is covered with the over tape 61 and pasted with a heat sealer, depending on the particle size of the granular material, it passes through the folds 53 and 59 of the one and the other opening end portions 51 and 57 and both opening edges 52. And 58 may be reached. For this reason, when the opening over tape 56 is cut with the cut tape 55 and one opening end 51 is opened, the granular material reaching one opening edge 52 is spilled and the surroundings are stained, or the other The granular material reaching the opening edge 58 is difficult to take out from the bag, and eventually the granular material spilled from one opening edge 52 and the granular material remaining on the other opening edge 58 are wasted.

  Furthermore, when opening one opening end 51 and transferring the entire amount of the granular material in the multilayer paper bag to another container, if the multilayer paper bag is turned upside down, one opening edge 52 is caused by the weight of the granular material. Open and easily transfer the powder to another container. However, when transferring a part of the granular material to another container, one of the opening edges 52 must be opened with fingers or the like. It will take more time to open the door.

Therefore, the object of the present invention is to prevent the contents from being steamed or condensed, and to satisfy the complete prevention of leakage of the granular material and to perform one-touch opening easily and completely. By adhering the sealing over tape to the outer surface of the other opening edge in advance , the sealing over tape can be easily attached to the other opening edge after filling the contents, An object of the present invention is to provide a breathable multilayer paper bag that can be easily opened by making the shape of the opening edge V-shaped .

The present invention has been proposed in order to achieve the above object, and is characterized by having the following configuration.
That is, according to the present invention, crushed folded two or more layers tube made of paper with a breathable, with a parallel crease on the opening edge at one open end of the folding crushed multilayer tube, from the fold line An easily peelable adhesive is applied and applied to the inner peripheral surface of the innermost layer located on the opening edge side, and the opening edge in the innermost layer is closed, and one opening end is folded along the crease. , Covering and pasting at least the opening edge of the one folded piece with an opening over tape, and sealing the one opening end ,
And on the outer surface of the other opening end located on the opposite side to the one opening end, a heat-adhesive adhesive is applied in advance, and a sealing over tape for covering at least the part is adhered. And
A V-shaped crease is attached to the one opening end on the opening edge side from the application site of the easily peelable adhesive on the inner peripheral surface of the innermost layer, and the opening edge of the innermost layer is formed on the multilayer cylinder. Provided is a breathable multilayer paper bag that is easy to open, characterized by being opened at least as thick as one layer.

  Further, according to the present invention, the opening edge at one open end of the multilayer cylinder is formed so as to be sequentially shifted with respect to each layer of the adjacent multilayer cylinder, and the total length of these deviations is 1 mm or less. An easy-to-open breathable multilayer paper bag in the range of 5 mm is provided.

  Further, according to the present invention, the opening edge at one opening end of the multilayer cylinder is formed such that the layers located on the inner side with respect to one layer of the adjacent multilayer cylinders are sequentially indented. A breathable multilayer paper bag that is easy to open has a total length of misalignment in the range of 1 mm to 5 mm.

  Further, according to the present invention, there is provided a breathable multilayer paper bag that is easy to open, wherein the opening and sealing over tape is made of paper and has a paper elongation in the width direction of less than 8%.

  The operation of the first problem solving means is as follows. That is, the inner peripheral surface of the innermost layer located on the opening edge side from the fold of one opening end of the multi-layer cylinder is affixed with an easily peelable adhesive, and the fold of the other opening end of the multi-layer cylinder is The inner peripheral surface of the innermost layer located on the opening edge side is preliminarily applied over the entire periphery with a heat-adhesive adhesive, and after the powder particles as the contents are filled in the bag, the innermost layer is heated and heated. Since the peripheral surface is pasted over the entire circumference, regardless of the particle size of the granular material, the granular material stops at the application site of both innermost layers and reaches the opening edge of one and the other opening end. In addition, the particles do not reach, and in addition, because they are made of breathable paper, the particles are not steamed or dewed.

In addition, the sealing overtape that has been attached in advance to the other opening end is folded along the fold to the other folding piece side to cover it, and the sealing overtape is heated to open the opening end on the other folding side. Paste to.

Further, when the opening over tape is cut and opened, and one opening end is opened, the opening edge of the innermost layer is at least of the multilayer cylinder by the spring elasticity of the paper material constituting the multilayer cylinder provided by the V-shaped fold. It opens more than the thickness of one layer and can be opened by hooking a finger on the opening edge .

In addition, the second problem solving means operates as follows. When the opening over tape is cut and opened and one opening end is opened, the multilayer cylinders adjacent to the opening edges are sequentially displaced. Since it has occurred, it is opened by hooking a finger on the opening edge of the displaced innermost layer.

Also, the action of the third problem solving means is that, when the opening over tape is cut and opened and one opening end is opened, the inner side of each multilayer cylinder adjacent to the opening edge is inward. Since the dent shift occurs sequentially as the layer is positioned, the finger is caught by opening the opening edge of the innermost layer having the dent shift.

Also, the fourth problem solving means is that the opening and sealing over tape is made of paper, but the paper elongation in the width direction is less than 8%, so the powder is filled in the bag. Then, due to the weight of the powder and the like, even if both overtapes are stretched, they are only less than 8% and do not shift or peel off.

  According to the air-permeable multilayer paper bag of the present invention that is easy to open, the air-permeable paper prevents the contents from being steamed or dewed, and satisfies the complete prevention of powder leakage. There is an effect that the opening with the opening over tape can be easily and completely performed.

  Moreover, according to the air-permeable multilayer paper bag of the present invention that is easy to open, in addition to the above-described effects, there is an effect that it can be easily attached to the other opening end with the sealing over tape.

  Further, according to the breathable multilayer paper bag of the present invention that is easy to open, in addition to the above-described effect, the opening edge of the innermost layer is opened by at least the thickness of at least one layer by the V-shaped fold after opening with the over tape for opening. Therefore, there is an effect that a finger can be caught on the opening edge and can be easily opened.

  Further, according to the breathable multilayer paper bag of the present invention that is easy to open, in addition to the above-described effect, after opening with the over tape for opening, there is a shift with respect to each layer of the multilayer cylinder adjacent to the opening edge. There is an effect that the finger can be hooked on the deviation of the opening edge of the innermost layer and can be easily opened.

  Moreover, according to the air-permeable multilayer paper bag of the present invention that is easy to open, in addition to the above-described effect, after opening with the opening over tape, there is a dent shift with respect to each layer of the multi-layer cylinder adjacent to the opening edge. Therefore, there is an effect that it can be obtained by hooking a finger on a recess in the opening edge of the innermost layer.

  Further, according to the air-permeable multilayer paper bag of the present invention that is easy to open, in addition to the above-described effect, even if the opening and sealing over tape stretches due to the weight of the granular material filled in the bag, it may shift. There is an effect that the granular material does not peel off without leaking.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a breathable multilayer paper bag containing contents and showing an embodiment of the present invention shown in Example 1 and is easy to open. It is a perspective view which shows the multilayer cylinder used for the air permeable multilayer paper bag which is similarly easy to open. It is a perspective view which shows the multilayer cylinder of the other shape similarly used for the air permeable multilayer paper bag similarly easy to open. It is the longitudinal cross-sectional view of the air-permeable multilayer paper bag which is easy to open similarly showing embodiment of this invention. It is a longitudinal cross-sectional view which follows the II line | wire of FIG. FIG. 2 is a longitudinal sectional view in which one opening edge along the line II in FIG. 1 has another shape. It is a longitudinal cross-sectional view of the air-permeable multilayer paper bag of the other shape which shows embodiment of this invention, and is easy to open. It is a top view which shows the manufacture state of a breathable multilayer paper bag which is also easy to open. It is a top view which shows the manufacture state of a breathable multilayer paper bag which is also easy to open. It is a top view which shows the manufacture state of a breathable multilayer paper bag which is also easy to open. It is a top view which shows the sealing state of the breathable multilayer paper bag which is easy to open similarly. It is a top view which shows the sealing state of the breathable multilayer paper bag which is easy to open similarly. It is a top view which shows the sealing state of the breathable multilayer paper bag which is easy to open similarly. It is a perspective view which shows a prior art example.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

In the drawings, 1 is easy open breathable multilayer paper bags (hereinafter, merely referred to as "multi-layer paper bag""The multi-layer paper bag 1, for example, two layers with an innermost layer 2 and outer layer 20 of paper Breathable The multilayer tube 3 is collapsed, and one open end 4 of the collapsed multilayer tube 3 serves as a side for taking out the powder P as the contents, and the other open end 8 described later is the powder P The folded multi-layer tube 3 has a fold 5 parallel to the opening edge 4a at one opening end 4 and the innermost layer 2 positioned on the opening edge 4a side from the fold 5 is provided. An easily peelable adhesive 6 is applied to and adhered to the peripheral surface 2A over the entire circumference, the opening edge 2a in the innermost layer 2 is closed, and one opening end 4 is folded along the fold 5, and this one folding is performed. At least the opening edge 4a in the piece 4b is opened with the over tape 7 for opening. Covering and affixing to the outer surface of the multilayer cylinder 3 with an adhesive G (see FIG. 4) and sealing one open end 4 on the side filled with the powder P (see FIGS. 5 and 6). Further, a crease 9 parallel to the opening edge 8a is attached to the other opening end 8 on the side where the above-described powder P is filled, and the innermost layer 2 located on the opening edge 8a side from the fold 9 The thermal adhesive 10 is preliminarily applied to the inner peripheral surface 2A of the inner peripheral surface 2A, and the other open end 8 is also after the powder P is filled. The sealing over tape 27 to be described in detail is sealed in the same manner as the case of the one open end 4.

  The multi-layer cylinder 3 is selected to have any diameter and length according to the purpose of use. In this embodiment, the innermost layer 2 and the outer layer 20 are two layers, both of which are paper, and the innermost layer 2 and the outer layer. 20 is glued with an adhesive 21 to form a two-ply cylinder, and further, the innermost layer 2 and the outer layer 20 are formed by the point paste 22 applied to the upper part and the lower part of the inner peripheral surface of the outer layer 20. Are attached so that there is no misalignment. The multilayer cylinder 3 is not limited to two layers, but may be a multilayer of three or more layers. The multi-layer cylinder 3 may be a multi-layer cylinder 3 </ b> A with a fold 3 a shown in FIG. 3 other than the crease shown in FIG. 2. In this embodiment, the case without the folds in FIG. 2 will be mainly described.

  Examples of the material of the paper described above include those generally used for packaging materials such as air-permeable kraft paper (JIS P3401), kraft stretched paper, bleached kraft paper, water-resistant paper and oil-resistant paper. There is no particular limitation as long as it is breathable and has a predetermined strength. It is an essential condition that the innermost layer 2 and the outer layer 20 are paper. In any case, the multilayer cylinder 3 is appropriately selected from materials according to the purpose of use such as air permeability, strength, and appropriate moisture resistance, and the innermost layer 2 and the outer layer 20 are made of paper.

  As shown in FIG. 4, the multilayer cylinder 3 is provided with a V-shaped fold 23 on the one opening end 4, and the position of the V-shaped fold 23 is located on the innermost layer 2. 6 from the application edge 6 to the opening edge 4a side. When the opening over tape 7 is cut and opened by the V-shaped crease 23 and one opening end 4 is opened, the spring elasticity of the paper constituting the innermost layer 2 and the outer layer 20 causes at least one layer of these. Since the opening is greater than the thickness t, the finger can be easily put on the opening edge 2a of the innermost layer 2 and can be easily opened, and the granular material P in the multilayer paper bag 1 can be easily taken out.

  Further, as shown in FIG. 5, the above-described method for easily placing the fingers on the opening edge 2 a of the innermost layer 2 is performed by connecting the opening edge 4 a at one opening end 4 of the multilayer tube 3 to the adjacent innermost layer 2 and The outer layer 20 may be formed so as to sequentially generate the deviation 24, and the total length of these deviations 24 may be in the range of 1 mm to 5 mm. Therefore, when the opening over tape 7 is cut and opened, and one opening end 4 is opened, a deviation 24 is sequentially generated with respect to the innermost layer 2 and the outer layer 20 adjacent to the opening edge 4a. Therefore, it is easy to put a finger on the opening edge 2 a of the innermost layer 2, and it can be easily opened, and the granular material P in the multilayer paper bag 1 can be easily taken out. The reason why the total length of the deviation 24 is in the range of 1 mm to 5 mm is that the height difference between the crest and the valley of the cutter blade of the multi-layer cylinder 3 production machine is typically 5 mm at maximum. If the total length is in the range of 1 mm to 5 mm, the opening edge 4a is not bent or bent due to the rigidity of the paper when the position of the multilayer cylinder 3 is manufactured. A finger can be hung on the opening edge 2 a of the innermost layer 2.

  Furthermore, as shown in FIG. 6, the method of making it easy to put a finger on the opening edge 2a of the innermost layer 2 is such that the opening edge 4a at one opening end 4 of the multilayer cylinder 3 is adjacent to the innermost layer 2 and the multilayer cylinder, respectively. The opening edge 4a at one opening end 4 is formed so that the innermost layer 2 positioned on the inner side of the innermost layer 2 and the outer layer 20 which are adjacent to each other causes a concave shift 25 in sequence. The total length may be in the range of 1 mm to 5 mm. Therefore, when the opening over tape 7 is cut and opened to open one of the opening end portions 4, a recess 25 is successively formed in each of the innermost layer 2 and the outer layer 20 adjacent to the opening edge 4a. Therefore, it is easy to put a finger on the opening edge 2a of the innermost layer 2 and the finger can be easily opened, and the granular material P in the multilayer paper bag 1 can be easily taken out. The reason why the total length of the recesses 25 is in the range of 1 mm to 5 mm is the same as in the case of the shifts 24.

  Examples of the easily peelable adhesive 6 include ethylene vinyl acetate, acryl-vinyl acetate, and polyvinyl alcohol. However, the adhesive 6 is not particularly limited as long as it is relatively easy to peel off after bonding. In this connection, the heat-adhesive adhesive 10 is exemplified by polyethylene, polypropylene, ethylene polyvinyl acetate, polyvinyl alcohol, hot melt and the like, but these are not sticky unless they are heated to be bonded. It is a condition. Moreover, as for the adhesive 21 for sticking to a trunk | drum, and the point pasting paste 22, ethylene vinyl acetate, acryl-vinyl acetate, polyvinyl alcohol, rubber type | system | group, starch, carboxymethylcellulose (CMC) etc. are illustrated.

  The opening over tape 7 is provided with a cut tape 26, and the opening over tape 7 located on both sides of the cut tape 26 is provided with cuts 7a, which can be easily and completely cut at once. The multilayer paper bag 1 can be opened easily.

In this embodiment, the material for the unsealing overtape 7 and the sealing overtape 27 is the same as that of the above-mentioned paper, and the weighing is 70 g / m ² to 140 g / m ² (JIS P8124). Yes, and a paper elongation (JIS P8113) in the width direction of less than 8% is used. Since both the opening and sealing overtapes 7 and 27 have a predetermined strength and the paper elongation is less than 8%, the multilayer paper bag 1 is slightly stretched due to the weight of the granular material in the layer paper bag 1. Even if both the overtapes 7 and 27 are stretched, the elongation is within the range of about 8%, and the granular material does not leak out. In particular, in the case of the opening over tape 7, any tape that can be cut by the cut tape 26 described later may be used.

  On the other hand, the folded multilayer cylinder 3 is bonded to the inner peripheral surface 2A of the innermost layer 2 located on the side of the opening edge 8a from the crease 9 attached to the other opening end 8, as described above. The agent 10 is previously applied over the entire circumference. Then, the sealing over tape 27 is formed by filling the powder P in the bag from the other opening end 8 side and then folding the other opening end 8 along the fold line 9. In which the thermal adhesive 10 is applied in advance. Therefore, as shown in FIG. 7, this sealing overtape 27 is multilayered in a state where it is pasted with the adhesive G in advance on the other opening end 8 located on the opposite side of the other folding piece 8b. It is also possible to use a paper bag 1A for use by consumers.

  And after filling the granular material P from the other opening end portion 8 which is the side to be filled with the granular material P, the other opening end portion 8 is folded along the crease 9 and heated with a heat sealer or the like, The other opening end 8 is closed by the heat-adhesive adhesive 10 so that the granular material P does not leak from the opening edge 8a. Further, the sealing over tape 27 is also folded along the crease 9 from above the other opening end 8 to cover the opening edge 8a of the other folding piece 8b, and similarly heated by a heat sealer or the like to be thermally bonded. Adhesive 10 is applied onto the other open end 8. The operation of closing the other opening end 8 by heating with this heat sealer or the like and the operation of attaching the sealing over tape 27 on the other opening end 8 can be performed simultaneously. is there.

The air-permeable multilayer paper bag 1 having the above-described configuration that is easy to open is manufactured as follows.
First, as shown in FIG. 8, air-permeable paper to be used as the innermost layer 2 and the outer layer 20 is prepared. In the innermost layer 2 paper, the innermost layer 2 positioned on the side of the opening edge 4a that is the fold 5 is prepared. The easily peelable adhesive 6 is applied and pasted to the peripheral surface 2A over the entire circumference, the opening edge 2a in the innermost layer 2 is closed, and a cylinder is pasted with the adhesive 21 to form a cylinder. In the paper to be the outer layer 20, the thermal adhesive 10 is applied to the inner peripheral surface 2 </ b> A of the innermost layer 2 located on the opening edge 8 a side that is the fold line 9 in advance, and further becomes the outer layer 20. Adhesive 21 and spot glue 22 are applied to the paper, and the innermost layer 2 is wrapped in a cylinder with the adhesive 21, and the innermost layer 2 and the outer layer 20 are displaced by the spot glue 22. In this way, the multilayer cylinder 3 is formed.

Next, fold lines 5 and 9 are attached to one and the other opening end portions 4 and 8 of the multilayer cylinder 3, and as shown in FIG. 9, one opening end portion 4 is folded along the fold line 5, and FIG. As shown, the opening edge 4a of the one folded piece 4b is at least covered and pasted with an opening over tape 7, and the one opening end 4 on the side filled with the granular material P is sealed. In this state, the multilayer paper bag 1 before being filled with the granular material P is completed and is ready to be delivered to a consumer. As already described, the thermal adhesive 10 is applied in advance to the inside of the sealing over tape 27, and the sealing over tape 27 is placed on the other opening located on the opposite side of the other folding piece 8b. You may make it the state which can be handed over to a consumer by making it stick in the edge part 8 with the adhesive agent G beforehand (refer FIG. 7). The multi-layer paper bag 1A with the sealing over tape 27 can facilitate the sealing operation of the other open end 8 with the sealing over tape 27 after filling the multilayer paper bag 1 with the powder P.

The usage form of the air-permeable multilayer paper bag 1 having the above-described configuration that is easily opened will be described.
The multilayer paper bag 1 shown in FIGS. 4 and 10 or the multilayer paper bag 1A with the sealing over tape 27 shown in FIG. 7 is placed with the other open end 8 on the side where the powder P is filled, as shown in FIG. Place under the hopper etc. which store the granular material P. Next, the opening edge 8a is opened, and the granular material P is filled into the multilayer paper bag 1 from a hopper or the like, and as shown in FIG. 12, the other opening end 8 is folded along the crease 9 after the filling is completed. 13, the opening edge 8a of the other folding piece 8b is at least covered with a sealing over tape 27, and the opening edge 2a in the innermost layer 2 of the opening edge 8a is closed and closed by a heat sealer, and the other opening end The over tape 27 for sealing is affixed to the part 8, the other open end 8 on the side filled with the powder P is sealed, and the multilayer paper bag 1 containing the powder P is shipped to the market.

  In the multilayer paper bag 1 containing the powder P, when the opening over tape 7 is cut with a cut tape 26 and one open end 4 is exposed, the opening edge 2a of the innermost layer 2 is a single layer formed by a V-shaped fold 23. Since it is open more than the thickness of the minute, and it is easy to put fingers by the deviation 24 and the depression 25, etc., the fingers can be immediately put on the opening edge 2a, against the adhesive force of the easily peelable adhesive 6. The opening edge 2a can be opened, and the granular material P in the multilayer paper bag 1 or the multilayer paper bag 1A can be easily taken out.

  Although the first embodiment of the present invention has been described above, it should be understood that the specific configuration is not limited to this, and that changes can be made as appropriate without departing from the scope of the present invention.

  The easy-to-open breathable multilayer paper bag of the present invention can prevent the contents from being steamed and condensed, satisfying the complete prevention of leakage of powder particles, easy and complete one-touch opening, and easy opening edge When it is possible to open it easily and take out the contents easily, the availability becomes extremely high.

1, 1A Breathable multilayer paper bag that can be easily opened (multilayer paper bag)
2 innermost layer 2A inner peripheral surface 2a, 4a, 8a, 52,
58 Opening edge 3, 3A, 50 Multi-layer cylinder 3a Folding 4, 51 One opening end 4a Opening edge of one folding piece
4b, 54 One folding piece 5, 9, 53, 59 Fold 6 Easy peelable adhesive 7, 56 Opening tape 7a Notch 8, 57 The other opening end 8a The other folding piece's opening edge 8b, 60 The other Folding piece 10 Thermal adhesive 20 Outer layer 21 Body glue 22 Point paste 23 V-shaped crease 24 Shift 25 Recessed recess 26, 55 Cut tape 27, 61 Sealing over tape G Adhesive P Powder Body t thickness

Claims (4)

Crushed Fold breathable 2 or more layers tube made of paper, with one fold line parallel to the opening edge at the open end of the folding crushed multilayer tube, the innermost layer located opening edge from the fold line An easily peelable adhesive is applied and pasted to the inner peripheral surface over the entire circumference, the opening edge in the innermost layer is closed, one opening end is folded along the fold, and the opening in the one folded piece Cover and apply at least the edge with an opening over tape, and seal the one open end ,
And on the outer surface of the other opening end located on the opposite side to the one opening end, a heat-adhesive adhesive is applied in advance, and a sealing over tape for covering at least the part is adhered. And
A V-shaped crease is attached to the one opening end on the opening edge side from the application site of the easily peelable adhesive on the inner peripheral surface of the innermost layer, and the opening edge of the innermost layer is formed on the multilayer cylinder. A breathable multilayer paper bag that is easy to open, characterized by being opened at least as thick as one layer.  The opening edge at one opening end of the multilayer cylinder is formed so as to be sequentially shifted with respect to each layer of the adjacent multilayer cylinder, and the total length of these deviations is in the range of 1 mm to 5 mm. The air-permeable multilayer paper bag according to 1, which is easy to open. The opening edge at one open end of the multilayer cylinder is formed such that the layers located inward with respect to the layers of the adjacent multilayer cylinders are successively formed with a misalignment, and the total length of these misalignments is 1 mm to The breathable multilayer paper bag which is easy to open according to claim 1, which is within a range of 5 mm. The breathable multilayer paper bag according to any one of claims 1 to 3, wherein the opening and sealing over tape is made of paper and has a paper elongation in the width direction of less than 8%.

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