JP6926670B2 - bag - Google Patents

Description

The present invention relates to a bag provided with an accommodating portion for accommodating the contents.

As a bag for accommodating the contents, a bag made of a flexible packaging material such as PET or nylon is used. As described in Patent Document 1, for example, such a bag is formed by heat-welding the inner surfaces of films containing a flexible packaging material to each other to form a sealing portion. In this case, the accommodating portion for accommodating the contents is defined as a space surrounded by the film and the sealing portion.

A bag made of a flexible packaging material is usually provided with an opening start means for breaking the seal portion to facilitate opening the bag. For example, in Patent Document 1, it is proposed to provide a group of scars at the end of the back seal portion as a means for starting opening. With respect to the bag odor described in Patent Document 1, the bag can be opened at the back seal portion by breaking the film of the bag along the scar group.

Japanese Unexamined Patent Publication No. 6-48450

In the bag described in Patent Document 1, by breaking the film of the bag along the scar group, an elongated opening is formed in the portion of the bag where the back seal portion was present. In this case, the width of the opening is narrow, which makes it difficult to take out the contents.

An object of the present invention is to provide a bag capable of effectively solving such a problem.

The present invention is a bag comprising a storage portion for accommodating contents, which is one or a plurality of films, and includes a first portion including a first end portion extending in a first direction, and the first direction. One or more films having at least a second portion including a second end extending to, a portion of the first portion on the first end side, and the second portion of the second portion. A gassho portion that overlaps a part on the second end side, and is at least partially joined by a gassho seal portion along the first direction, and a first gassho portion provided on the gassho portion. A first portion that intersects the first planned opening portion, a first easily broken portion provided in the first portion so as to extend from the first scheduled opening portion in the first direction, and the first scheduled opening portion in the first direction. A second easily broken portion provided in the second portion so as to extend in two directions, and a second easily broken portion provided in the second portion so as to extend in the second direction at a position away from the second easily broken portion in the first direction. It is a bag provided with a third easily broken portion.

In the bag according to the present invention, the first scheduled opening portion may include notches formed in the first end portion of the first portion and the second end portion of the second portion.

In the bag according to the present invention, the first easily broken portion includes a group of scars formed on the first portion, and the second easily broken portion and the third easily broken portion are formed on the second portion. It may include a scar group or a half-cut portion.

In the bag according to the present invention, the first portion includes a stretched film stretched along the first direction, and the second easily broken portion and the third easily broken portion are formed in the second portion. It may include a scar group or a half-cut portion.

In the bag according to the present invention, the first easily broken portion includes a group of scars formed in the first portion, and the second portion may include a stretched film stretched along the second direction. good.

The bag according to the present invention further includes a second scheduled opening portion provided in the gassho portion at a position away from the first scheduled opening portion in the first direction, and the third easily broken portion is the second opening. It may extend from the planned portion in the second direction.

According to the present invention, the bag can be broken along the first easily broken portion, the second easily broken portion, and the third easily broken portion. Therefore, the opening defined by the first easily broken portion, the second easily broken portion, and the third easily broken portion can be formed in the bag.

It is a top view which shows the bag in embodiment of this invention in the case where the gassho part faces a 2nd part. It is a top view which shows the bag in embodiment of this invention in the case where the gassho part faces the 1st part. It is sectional drawing which saw the bag of FIG. 1 from the direction of III-III. It is sectional drawing which shows an example of the layer structure of the film which constitutes a bag. It is sectional drawing which shows an example of the layer structure of the film which constitutes a bag. It is a top view which shows an example of the 1st easy break part. FIG. 5 is a cross-sectional view of the first easily broken portion of FIG. 5 as viewed from the VI-VI direction. It is a top view which shows an example of the 2nd easy break part. It is a top view which shows an example of the 2nd easy break part. FIG. 8 is a cross-sectional view of the second easily broken portion of FIG. 8 as viewed from the IX-IX direction. It is a figure which shows the process of breaking the gassho part along the 1st planned opening part. It is a figure which shows the process of breaking the 1st part and the 2nd part along the 1st easy break part and the 2nd easy break part. It is a figure which shows the process of breaking the 1st part and the 2nd part along the 1st easy break part and the 2nd easy break part. It is a figure which shows the process of breaking the gassho part along the 2nd planned opening part. It is a figure which shows the process of breaking the 2nd part along the 3rd easy break part. It is a top view which shows one modification of a bag. It is a top view which shows one modification of a bag. It is sectional drawing which looked at the bag of FIG. 16 from the XVII-XVII direction. It is a top view which shows one modification of a bag. It is sectional drawing which looked at the bag of FIG. 18 from the XIX-XIX direction. It is sectional drawing which shows one modification of the bag.

Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 14. In the drawings attached to the present specification, the scale, aspect ratio, etc. are appropriately changed from those of the actual product and exaggerated for the convenience of illustration and comprehension.

In addition, as used in the present specification, the terms such as "parallel", "orthogonal", and "same" and the values of length and angle that specify the shape and geometric conditions and their degrees are strictly used. Without being bound by meaning, we will interpret it including the range in which similar functions can be expected.

The bag bag 10 includes a front surface film 21, a back surface film 22 facing the front surface film 21, and a sealing portion for joining the inner surfaces of the films. As will be described later, in the example shown in FIG. 1, the front surface film 21 and the back surface film 22 are formed by folding back one film. The seal portion is configured to define and seal the accommodating portion 15 for accommodating the contents. The bag 10 includes a gasp portion 36 in which a part of a first portion and a part of a second portion of the film, which will be described later, overlap each other. The seal portion includes a gassho seal portion 35 formed on the gassho portion 36. In the example shown in FIG. 1, the gassho portion 36 and the gassho seal portion 35 are formed on the surface film 21 side. That is, the bag 10 shown in FIG. 1 is a so-called pillow bag. 1 and 2 are plan views showing a case where the bag 10 in the present embodiment is viewed from the surface film 21 side. Further, FIG. 3 is a cross-sectional view showing the case where the bag 10 shown in FIG. 1 is viewed from the direction III-III.

In the bag 10 according to the present embodiment, it is assumed that the user tears the gassho portion 36 and the surface film 21 to open the bag 10 and takes out the contents contained in the accommodating portion 15. .. As the contents, those suitable for such usage are selected.
When the bag 10 is a primary packaging container for directly packaging the contents, the form of the contents is, for example, granules, powder, solid or the like.
When the bag 10 is a secondary packaging container containing a primary packaging container for directly packaging the contents, the form of the contents is not particularly limited. For example, the form of the content may be the above-mentioned granules, powders, solids, etc., or may have higher fluidity, such as a liquid.

Hereinafter, the configuration of the bag 10 will be described. As shown in FIGS. 1 and 2, the bag 10 has a first edge portion 11 and a second edge portion 12 facing each other, and a third edge portion 13 and a fourth edge portion 14 facing each other. The third edge 13 and the fourth edge 14 extend between the first edge 11 and the second edge 12. In the following description, the direction in which the first edge portion 11 and the second edge portion 12 extend is also referred to as the first direction D1. Further, the direction intersecting the first direction D1 is also referred to as a second direction D2. In the present embodiment, the first direction D1 is parallel to the transport direction in which the film constituting the bag 10 is transported in the manufacturing process of the bag 10. In the examples shown in FIGS. 1 and 2, the second direction D2 is orthogonal to the first direction D1. Further, the third edge portion 13 and the fourth edge portion 14 extend in parallel with the second direction D2.

FIG. 1 shows a state in which the above-mentioned gassho portion 36 is tilted toward the second edge portion 12. Further, FIG. 2 shows a state in which the gassho portion 36 is tilted toward the first edge portion 11.

In FIG. 1, reference numeral L10 represents the length of the first edge portion 11 and the second edge portion 12 in the first direction D1. L10 is, for example, 60 mm or more and 300 mm or less. Further, the reference numeral L20 represents the length of the third edge portion 13 and the fourth edge portion 14 in the second direction D2. L20 is, for example, 40 mm or more and 250 mm or less. The ratio of L20 to L10 is, for example, 0.5 or more and 1.5 or less. Further, the reference numeral L21 represents the distance from the first edge portion 11 to the gassho seal portion 35 in the second direction D2.

As shown in FIGS. 1 and 2, the gassho seal portion 35 may be closer to the first edge portion 11 than the second edge portion 12. That is, the distance L21 from the first edge portion 11 to the gassho seal portion 35 (base portion 362 of the gassho portion 36) is smaller than the distance from the second edge portion 12 to the gassho seal portion 35 (base portion 362 of the gassho portion 36). It may be. For example, the ratio of the distance L21 to the length L20 is 0.1 or more and 0.7 or less. As will be described later, when the bag 10 according to the present embodiment is opened, an opening is formed in the region from the gassho seal portion 35 to the second edge portion 12. By arranging the gassho seal portion 35 closer to the first edge portion 11, the area of the opening can be increased.

As described above, the bag 10 includes a front surface film 21 and a back surface film 22. In the examples shown in FIGS. 1 and 2, the front surface film 21 and the back surface film 22 are configured by folding one film along the first direction D1 at the first edge portion 11 and the second edge portion 12. .. In the present embodiment, the portion of the film that is folded back at the first edge portion 11 to form the surface film 21 is referred to as the first portion 23. As shown in FIGS. 1 and 3, the first portion 23 includes a first end portion 231 extending in the first direction D1. Further, the portion of the film that is folded back at the second edge portion 12 to form the surface film 21 is referred to as a second portion 24. The second portion 24 includes a second end portion 241 extending in the first direction D1, as shown in FIGS. 2 and 3. The above-mentioned gassho portion 36 is a portion in which a part of the first portion 23 including the first end portion 231 and a portion of the second portion 24 including the second end portion 241 are overlapped. The first end portion 231 of the first portion 23 and the second end portion 241 of the second portion 24 serve as the tip portion 361 of the gassho portion 36.

An opening for filling the contents is formed in a part of the bag 10. After filling the contents, the bag 10 can be sealed by forming a seal portion so as to close the opening.

As will be described later, the surface film 21 may be composed of a single film. For example, as will be described later, the front surface film 21 may be composed of one film, and the back surface film 22 may be composed of a single film different from the film constituting the front surface film 21.

Next, a sealing portion for joining the inner surfaces of the films constituting the bag 10 will be described. In the examples shown in FIGS. 1 and 2, the seal portion includes a third seal portion 33 extending along the third edge portion 13, a fourth seal portion 34 extending along the fourth edge portion 14, and a gassho seal portion 35. Has. The method for forming the sealing portion is not particularly limited as long as the films can be joined to each other to seal the bag 10. For example, the seal portion may be formed by melting the films with each other by heating or the like and welding the films. Alternatively, the sealing portion may be formed by adhering the films to each other using an adhesive or the like.

As shown in FIGS. 1 to 3, the gassho seal portion 35 has a part of the inner surface of the first portion 23 on the first end portion 231 side and a part of the inner surface of the second portion 24 on the 241 side. , Joined along the first direction D1. The gassho seal portion 35 may extend in the first direction D1 from the third seal portion 33 to the fourth seal portion 34. As shown in FIG. 3, the gassho seal portion 35 may be in contact with the first end portion 231 and the second end portion 241, or although not shown, the gassho seal portion 35 is the first end portion 231 and the first end portion 231. It does not have to be in contact with the second end portion 241 (that is, the tip portion 361 of the gassho portion 36). Preferably, the gassho seal portion 35 is configured to reach the base portion 362 of the gassho portion 36. The gassho seal portion 35 may not be formed over the entire width of the gassho portion 36 in the second direction D2.

(Film layer structure)
Next, the layer structure of the film 20 such as the front surface film 21 and the back surface film 22 constituting the bag 10 will be described. FIG. 4A is a cross-sectional view showing an example of the layer structure of the film 20.

As shown in FIG. 4A, the film 20 includes at least a sealant layer 61 and a first substrate 62A. In the example shown in FIG. 4A, the sealant layer 61 constitutes the inner surface S1 of the film 20, and the first base material 62A constitutes the outer surface S2 of the film 20. Further, the film 20 may further include a functional layer 63 located between the sealant layer 61 and the first base material 62A. Further, the film may further include an adhesive layer such as a first adhesive layer 64 for adhering the sealant layer 61 and the functional layer 63, and a second adhesive layer 65 for adhering the first base material 62A and the functional layer 63. good. The thickness of the film 20 is, for example, 50 μm or more and 130 μm or less.

Examples of the method of laminating the sealant layer 61, the first base material 62A, and the functional layer 63 as needed include a dry laminating method and an extrusion laminating method.
In the dry laminating method, a film-shaped sealant layer 61, a film-shaped first base material 62A, and the like are bonded together using an adhesive. In this case, the first adhesive layer 64 and the second adhesive layer 65 contain an adhesive such as an ether-based adhesive.
In the extrusion laminating method, for example, the sealant layer 61 is formed in a molten state on the film-shaped first base material 62A or on the laminated body of the film-shaped first base material 62A and the functional layer 63. Extrude a material into a film. In this case, the adhesive layer may not be present between the sealant layer 61 and the first base material 62A, or between the sealant layer 61 and the functional layer 63. Further, an anchor coat layer may be provided on the surface of the first base material 62A or the functional layer 63 on the sealant layer 61 side.

As the material constituting the sealant layer 61, for example, polyethylene or polypropylene such as ethylene-methacrylic acid copolymer (EMMA), low density polyethylene (LDPE) or linear low density polyethylene (LLDPE) can be used. As the polypropylene, for example, an unstretched polypropylene film can be used. The thickness of the sealant layer 61 is, for example, 20 μm or more and 100 μm or less, preferably 50 μm or less, and more preferably 30 μm or less. The sealant layer 61 may be composed of a single layer or may be composed of a plurality of layers.

As the material constituting the first base material 62A, for example, a polyamide such as polyester or nylon such as polyethylene terephthalate or polybutylene terephthalate, or a plastic such as polyolefin such as high-density polyethylene or polypropylene can be used.

The plastic film constituting the first base material 62A may be uniaxially or biaxially stretched as described later. In this case, the first base material 62A may be stretched so that the breaking strength in the first direction D1 and the breaking strength in the second direction D2 are different. For example, the breaking strength of the first base material 62A in the second direction D2 may be smaller than the breaking strength in the first direction D1. On the contrary, the breaking strength of the first base material 62A in the first direction D1 may be smaller than the breaking strength in the second direction D2. In the following description, among the characteristics of plastic films such as the first base material 62A and the second base material described later, the characteristic that the breaking strength in the second direction D2 is smaller than the breaking strength in the first direction D1 is described. Also called "horizontal tear". Further, among the characteristics of the plastic film, the characteristic that the breaking strength in the first direction D1 is smaller than the breaking strength in the second direction D2 is also referred to as "longitudinal tear". Further, among the characteristics of the plastic film, the characteristics that the breaking strength in the first direction D1 and the breaking strength in the second direction D2 are the same and that the plastic film is easily torn in both the first direction D1 and the second direction D2. , Also referred to as "isotropic easy tearing".
In the laterally split plastic film, the ratio of the breaking strength in the second direction D2 to the breaking strength in the first direction D1 is preferably 1/2 or less, more preferably 1/4 or less. In the laterally split plastic film, the breaking strength in the second direction D2 is, for example, 100 MPa or less, and the breaking strength in the first direction D1 is, for example, 200 MPa or less. The laterally split plastic film is, for example, laterally split OPP or laterally split HDPE, as described below.
Further, in the vertically split plastic film, the ratio of the breaking strength in the first direction D1 to the breaking strength in the second direction D2 is preferably 1/2 or less, more preferably 1/4 or less. In the vertically split plastic film, the breaking strength in the first direction D1 is, for example, 100 MPa or less, and the breaking strength in the second direction D2 is, for example, 200 MPa or less.
Further, in the isotropically easily torn plastic film, both the breaking strength in the first direction D1 and the breaking strength in the second direction D2 are, for example, 100 MPa or less. In the isotropic easy-tear plastic film, the difference between the breaking strength in the first direction D1 and the breaking strength in the second direction D2 is 30% or less. The isotropically easily torn plastic film is, for example, isotropically easily torn PET, as will be described later.

Further, the first base material 62A may be provided with a print display for showing product information or giving an aesthetic impression. Examples of the print display include characters, numbers, symbols, figures, and patterns. The thickness of the first base material 62A is, for example, 4 μm or more and 30 μm or less.

As the functional layer 63, an appropriate one can be selected according to the required performance such as water vapor and other gas barrier properties, light shielding properties, and various mechanical strengths. For example, when the functional layer 63 is a gas barrier layer, the functional layer 63 may be a metal foil such as an aluminum foil. Further, the functional layer 63 may be a vapor deposition layer or a resin layer provided on the first base material 62A. The vapor-deposited layer contains a substance having a gas barrier property, for example, an inorganic substance such as aluminum or an inorganic oxide such as aluminum oxide or silicon oxide. The resin layer contains a resin material having a gas barrier property, such as an ethylene-vinyl alcohol copolymer (EVOH), a polyvinylidene chloride resin (PVDC), and an aromatic polyamide such as nylon MXD6. By providing the functional layer 63 having such a gas barrier property, it is possible to prevent oxygen and water vapor from entering the inside of the bag 10.
The above-mentioned layer exemplified as the functional layer 63 replaces the functional layer 63 between the first base material 62A and the sealant layer 61, or in addition to the functional layer 63, is outside (outer surface) of the first base material 62A. It may be provided on the S2 side).

As shown in FIG. 4B, the film 20 may further include a second substrate 62B located between the first substrate 62A and the sealant layer 61. As the material constituting the second base material 62B, for example, a polyamide such as polyester or nylon such as polyethylene terephthalate or polybutylene terephthalate or a plastic such as polyolefin such as high-density polyethylene or polypropylene is used as in the case of the first base material 62A. Can be done. Like the first base material 62A, the second base material 62B may be a horizontally-split plastic film or a vertically-split plastic film.

In the example shown in FIG. 4B, the film 20 may further include the above-mentioned functional layer 63. The functional layer 63 may be located between the first base material 62A and the second base material 62B, or may be located between the second base material 62B and the sealant layer 61.

Further, although not shown, the film 20 may include an additional plastic film in addition to the first base material 62A and the second base material 62B.

Needless to say, the layer structure of the film 20 is not limited to that described above. Further, the layer structure of the front surface film 21 and the layer structure of the back surface film 22 may be the same or different.

Next, the components for tearing the bag 10 and opening the bag 10 will be described. As shown in FIGS. 1 and 2, the bag 10 is provided in the first planned opening portion 40 and the second scheduled opening portion 45 provided in the gassho portion 36, and the first easy portion 23 provided in the first portion 23 of the surface film 21. It includes a breaking portion 51, and a second easily breaking portion 52 and a third easily breaking portion 53 provided in the second portion 24 of the surface film 21.

(1st scheduled opening part)
The first scheduled opening portion 40 is a portion that triggers the breakage when the gassho portion 36 and the gassho seal portion 35 are broken in order to open the bag 10. The first scheduled opening portion 40 is formed, for example, at a position closer to the third edge portion 13 than the fourth edge portion 14. The first scheduled opening portion 40 includes, for example, notches 41 formed in the first end portion 231 of the first portion 23 and the second end portion 241 of the second portion 24, as shown in FIGS. 1 and 2. The notch 41 is a notch such as a V-shape, a notch, or the like. The gassho portion 36 and the gassho seal portion 35 are broken along the direction in which the notch 41 extends. Therefore, the portion of the gassho portion 36 and the gassho seal portion 35 that overlaps the notch 41 or the extension lines of the notch 41 and the notch 41 becomes the first scheduled opening portion 40. The first scheduled opening portion 40 may include a scar group or a half-cut line in place of the notch 41 or in addition to the notch 41.

As shown in FIGS. 1 and 2, the first scheduled opening portion 40 and the notch 41 may extend in a direction inclined with respect to both the first direction D1 and the second direction D2. For example, the notch 41 is configured to be displaced toward the fourth edge portion 14 side from the tip portion 361 side of the gassho portion 36 toward the accommodating portion 15 side. The angle formed by the direction in which the notch 41 extends and the first direction D1 may be 35 degrees or more and 90 degrees. As a result, the component of the force applied to the bag 10 by the user when opening the bag 10 includes both the component of the first direction D1 and the component of the second direction D2. This makes it easier to break the first easily broken portion 51 and the second easily broken portion 52.

As long as the first scheduled opening portion 40 can cross the gassho seal portion 35 in the direction intersecting the first direction D1, the direction in which the first scheduled opening portion 40 and the notch 41 extend is not particularly limited. For example, although not shown, the direction in which the notch 41 extends may be parallel to the second direction D2.

(2nd scheduled opening part)
Like the first scheduled opening portion 40, the second scheduled opening portion 45 is also a portion that triggers the break when the gassho portion 36 and the gassho seal portion 35 are broken in order to open the bag 10. As shown in FIGS. 1 and 2, the second scheduled opening portion 45 is provided in the gassho portion 36 at a position away from the first scheduled opening portion 40 toward the fourth edge portion 14 in the first direction D1. The distance L11 between the first scheduled opening portion 40 and the second scheduled opening portion 45 in the first direction D1 is, for example, 30 mm or more and 270 mm or less. The ratio of the distance L11 to the length L10 may be 0.5 or more and 0.9 or less.

The second scheduled opening portion 45 includes, for example, a notch 46 formed in the first end portion 231 of the first portion 23 and the second end portion 241 of the second portion 24, similarly to the first scheduled opening portion 40. The second scheduled opening portion 45 may include a scar group or a half-cut line in place of the notch 46 or in addition to the notch 46.

The second scheduled opening portion 45 and the notch 46 may extend in an inclined direction with respect to both the first direction D1 and the second direction D2, as in the case of the first scheduled opening portion 40 and the notch 41. .. For example, the notch 46 is configured to be displaced toward the third edge portion 13 side from the tip portion 361 side of the gassho portion 36 toward the accommodating portion 15 side. The angle formed by the direction in which the notch 41 extends and the first direction D1 may be 35 degrees or more and 90 degrees.

(1st easy break part)
The first easily broken portion 51 is a portion of the first portion 23 that is easily broken. As shown in FIGS. 1 and 2, the first easily broken portion 51 is provided in the first portion 23 so as to extend in the first direction D1 from the first scheduled opening portion 40 to the second scheduled opening portion 45. There is. By providing the first easily broken portion 51, the user breaks the gassho portion 36 and the gassho seal portion 35 along the first scheduled opening portion 40, and then transfers the first portion 23 to the first easily broken portion 51. It can be broken along.

As shown in FIG. 3, the first easily broken portion 51 includes a first end portion 511 and a second end portion 512 facing the first end portion 511 in the second direction D2. The first end portion 511 is arranged so as not to overlap with the gassho seal portion 35 when viewed along the thickness direction of the first portion 23. As shown in FIG. 3, the second end portion 512 may overlap with the gassho seal portion 35 when viewed along the thickness direction of the first portion 23. In other words, the first easily broken portion 51 may extend so as to straddle the end portion of the gassho seal portion 35 on the accommodating portion 15 side. Alternatively, as will be described later, the second end portion 512 of the first easily broken portion 51 overlaps with the end portion of the gassho seal portion 35 on the accommodating portion 15 side when viewed along the thickness direction of the first portion 23. You may. Alternatively, although not shown, when viewed along the thickness direction of the first portion 23, between the second end portion 512 of the first easily broken portion 51 and the end portion of the gassho seal portion 35 on the accommodating portion 15 side. In addition, there may be a slight gap, for example, a gap of 5 mm or less.

Hereinafter, the specific structure of the first easily broken portion 51 will be described. FIG. 5 is an enlarged plan view of the first easily broken portion 51 shown in FIG. The first easily broken portion 51 has, for example, a scar group 66 including a plurality of holes 661 formed in the first portion 23. A plurality of holes 661 are arranged in the first direction D1 and the second direction D2. The width W1 of the scar group 66 in the direction orthogonal to the first direction D1, that is, the existence range of the hole 661 is, for example, 5 mm or more and 30 mm or less.

FIG. 6 is a cross-sectional view of the first easily broken portion 51 of FIG. 5 as viewed from the VI-VI direction. The holes 661 penetrate at least the first base material 62A. Such holes 661 can be formed in the first base material 62A by processing a plastic film constituting the first base material 62A using, for example, a rotary die roll provided with a cutting edge. When the film 20 further contains the second base material 62B, the holes 661 may further penetrate the second base material 62B. In this case, the hole 661 can be formed by processing the laminate in which the first base material 62A and the second base material 62B are bonded together using a rotary die roll or the like provided with a cutting edge.

The specific structure of the hole 661 is not particularly limited as long as the ease of breaking of the first portion 23 can be increased. For example, when the bag 10 is not required to have gas barrier properties, the holes 661 may penetrate not only the first base material 62A but also the entire film 20. Further, the holes 661 may be a plurality of notches formed in the film 20 from the outer surface S2 side. In this case, the direction in which the notch extends may be parallel to the first direction D1.

Further, the first easily broken portion 51 may be realized by the tearability of the film itself constituting the first portion 23. For example, the first portion 23 includes at least a uniaxially stretched, preferably a biaxially stretched stretched film as, for example, a first substrate 62A or a second substrate 62B. As the material constituting the stretched film, for example, polyamide such as nylon (ONy), polyester such as polyethylene terephthalate (PET), polyethylene such as high density polyethylene (HDPE), polypropylene and the like can be used. By including such a stretched film in the first portion 23, the first portion 23 is likely to be broken in the first direction D1 over the entire area.

When the first easily broken portion 51 is realized by a stretched film, the stretched film is preferably stretched along the first direction D1. For example, the angle formed by the stretching direction of the stretched film constituting the first base material 62A and the second base material 62B and the first direction D1 is preferably 45 degrees or less, and more preferably 30 degrees or less. It is preferably 20 degrees or less, and more preferably 20 degrees or less. As a result, the stretched film constituting the first base material 62A and the second base material 62B becomes the above-mentioned vertically split plastic film that is easily broken in the first direction D1.

The stretched film refers to a film having a tensile elongation of less than 300%, preferably 200% or less when measured in accordance with JIS K 7127. When the first easily broken portion 51 is realized by a stretched film, the tensile strength of the stretched film in the first direction D1 is preferably 100 MPa or less.

(2nd easy break part)
The second easily broken portion 52 is a portion of the second portion 24 that is easily broken. As shown in FIGS. 1 and 2, the second easily broken portion 52 is provided in the second portion 24 so as to extend from the first scheduled opening portion 40 in the second direction D2. By providing the second easily broken portion 52, the user breaks the gassho portion 36 and the gassho seal portion 35 along the first scheduled opening portion 40, and then transfers the second portion 24 to the second easily broken portion 52. It can be broken along.

In FIG. 1, reference numeral θ1 represents an angle formed by a direction in which the first easily broken portion 51 extends and a direction in which the second easily broken portion 52 extends. The angle θ1 is preferably 70 degrees or more and 100 degrees or less, and more preferably 80 degrees or more and 95 degrees or less.

As shown in FIG. 2, the second easily broken portion 52 includes a first end portion 521 and a second end portion 522 facing the first end portion 521 in the second direction D2. The first end portion 521 is arranged so as not to overlap the gassho seal portion 35 when viewed along the thickness direction of the second portion 24. For example, as shown in FIG. 2, the first end portion 521 is arranged so as to overlap the second edge portion 12 or to be close to the second edge portion 12. As shown in FIGS. 2 and 3, the second end portion 522 may overlap with the gassho seal portion 35 when viewed along the thickness direction of the second portion 24. In other words, the second easily broken portion 52 may extend in the second direction D2 so as to straddle the end portion of the gassho seal portion 35 on the accommodating portion 15 side. Alternatively, as will be described later, the second end portion 522 of the second easily broken portion 52 overlaps with the end portion of the gassho seal portion 35 on the accommodating portion 15 side when viewed along the thickness direction of the second portion 24. You may. Alternatively, although not shown, when viewed along the thickness direction of the second portion 24, between the second end portion 522 of the second easily broken portion 52 and the end portion of the gassho seal portion 35 on the accommodating portion 15 side. In addition, there may be a slight gap, for example, a gap of 5 mm or less.

Hereinafter, the specific structure of the second easily broken portion 52 will be described. FIG. 7 is an enlarged plan view of the second easily broken portion 52 shown in FIG. The second easily broken portion 52 may have a scar group 66 including a plurality of holes 661 formed in the second portion 24, as in the case of the first easily broken portion 51 shown in FIG. A plurality of holes 661 are arranged in the first direction D1 and the second direction D2. The width W2 of the scar group 66 in the direction orthogonal to the second direction D2, that is, the existence range of the hole 661 is, for example, 5 mm or more and 15 mm or less.

Since the structure of the holes 661 forming the scar group 66 of the second easily broken portion 52 is the same as the structure of the holes 661 forming the scar group 66 of the first easily broken portion 51, detailed description thereof will be omitted.

FIG. 8 is an enlarged plan view showing another example of the second easily broken portion 52. The second easily broken portion 52 may include a half-cut portion 67 extending along the second direction D2. The width W2 of the half-cut portion 67 in the direction orthogonal to the second direction D2 is, for example, 3 mm or more and 5 mm or less. The half-cut portion 67 may extend continuously along the second direction D2 as shown in FIG. 8, or, although not shown, the half-cut portion 67 is intermittent along the second direction D2. May extend to.

FIG. 9 is a cross-sectional view of the half-cut portion 67 of FIG. 8 as viewed from the IX-IX direction. The half-cut portion 67 is configured so as to penetrate the first base material 62A but not the sealant layer 61. For example, the half-cut portion 67 penetrates the first base material 62A and the second adhesive layer 65 of the second portion 24, but does not have to penetrate the functional layer 63, the first adhesive layer 64, and the sealant layer 61. .. Such a half-cut portion 67 can be formed, for example, by irradiating at least the second portion 24 with the first base material 62A and the sealant layer 61 from the outer surface S2 side with laser light to process the second portion 24.

Although not shown, the half-cut portion 67 may penetrate the first base material 62A but not the second adhesive layer 65. In this case, for example, first, a cutting tool is used to form a through hole or a slit penetrating the first base material 62A in the first base material 62A, and then the first base material 62A and another layer are laminated. .. As a result, it is possible to obtain the film 20 in which the half-cut portion 67 is formed in the second portion 24.

Although not shown, the above-mentioned first easily broken portion 51 may also include a half-cut portion similar to the half-cut portion 67 of the second easily broken portion 52 shown in FIGS. 8 and 9. In this case, the half-cut portion extends continuously or intermittently along the first direction D1.

Further, the second easily broken portion 52 may be realized by the tearability of the film itself constituting the second portion 24. For example, the second portion 24 includes, for example, a stretched film that is at least uniaxially stretched, preferably biaxially stretched, as, for example, the first substrate 62A.

When the second easily broken portion 52 is realized by a stretched film, the stretched film is preferably stretched along the second direction D2. For example, the angle formed by the stretching direction of the stretched film constituting the first base material 62A and the second direction D2 is preferably 30 degrees or less, more preferably 20 degrees or less, and 10 degrees or less. It is more preferable to have.

When the second easily broken portion 52 is realized by the stretched film, the specific material constituting the stretched film and its tensile elongation are the same as when the first easily broken portion 51 is realized by the stretched film. A detailed description will be omitted.

(Third easy break part)
The third easily broken portion 53 is a portion of the second portion 24 that is easily broken, like the second easily broken portion 52. As shown in FIGS. 1 and 2, the third easily broken portion 53 is provided in the second portion 24 at a position away from the second easily broken portion 52 in the first direction D1. Further, the third easily broken portion 53 is provided in the second portion 24 so as to extend from the second scheduled opening portion 45 in the second direction D2. By providing the third easily broken portion 53, the user breaks the first portion 23 along the first easily broken portion 51, and the gassho portion 36 and the gassho seal portion 35 are along the second scheduled opening portion 45. The second portion 24 can be broken along the third easily broken portion 53. The distance between the second easily broken portion 52 and the third easily broken portion 53 in the first direction D1 is the above-mentioned distance between the first scheduled opening portion 40 and the second scheduled opening portion 45 in the first direction D1. It is almost equal to L11.

In FIG. 1, reference numeral θ2 represents an angle formed by a direction in which the first easily broken portion 51 extends and a direction in which the third easily broken portion 53 extends. The angle θ2 is preferably 70 degrees or more and 100 degrees or less, and more preferably 80 degrees or more and 95 degrees or less.

As shown in FIGS. 7 to 9, the structure of the third easily broken portion 53 is the same as the structure of the second easily broken portion 52, and therefore detailed description thereof will be omitted.

(Example of combination of 1st easy break part, 2nd easy break part and 3rd easy break part)
As described above, the first easily broken portion 51, the second easily broken portion 52, and the third easily broken portion 53 may be realized by processing such as the scar group 66 or the half cut portion 67, respectively, and may be stretched. It may be realized by the tearability of the film 20 itself such as a film. Therefore, various examples can be considered as a combination of the first easily broken portion 51, the second easily broken portion 52, and the third easily broken portion 53. Hereinafter, four typical examples will be described together with examples of the layer structure of the film 20 used in each example.

[First example]
In the first example, the first easily broken portion 51 is realized by processing such as the scar group 66 or the half cut portion 67, and the second easily broken portion 52 and the third easily broken portion 53 are formed in the second direction D2. It is realized by the tearability of the stretched film. In this case, the layer structure of the film 20 is as shown in FIG. 4A when the film 20 contains only one stretched plastic film (first base material 62A) and as shown in FIG. 4B. Both cases where the film 20 contains two stretched plastic films (first base material 62A and second base material 62B) can be considered. A typical example of the layer structure of the film 20 in this example is shown below.
1st base material / 2nd base material / sealant layer In any case, at least one of the 1st base material 62A and the 2nd base material 62B is a lateral split OPP or lateral It is configured as a horizontal tear plastic film such as tear HDPE.

Specific examples of the layer structure of the film 20 in the first example are listed below. The "/" represents the boundary between layers. The leftmost layer is a layer constituting the outer surface S2 of the film 20, and the rightmost layer is a layer constituting the inner surface S1 of the film 20.
(1) Horizontal tear OPP25 / mark / DL / AL7 / DL / isotropic easy tear PET14 / DL / LLDPE30
(2) Horizontal tear OPP25 / mark / AC / EMAA15 / AL7 / AC / PE15 / LLDPE30
(3) Horizontal tear OPP25 / mark / AC / LDPE15 / horizontal tear HDPE18 / AC / LLDPE20
(4) Lateral tear OPP20 / mark / AC / LDPE15 / isotropic easy tear PET12 / AC / LLDPE20
(5) OPP20 / Mark AC / LDPE15 / Horizontal tear HDPE18 / AC / LLDPE20
"OPP" means stretched polypropylene film. The “mark” means a print layer that constitutes a print display. "DL" is an abbreviation for dry laminate and means that an adhesive layer is present. "AL" means an aluminum foil which is an example of the functional layer 63. The numerical value attached to the right side of the material represents the thickness of each layer. The unit of thickness is μm.

In the examples (1) to (5), the leftmost lateral split OPP or OPP constitutes the first base material 62A. Further, in the examples of (1), (3), (4) and (5), isotropic easy tear PET or lateral tear HDPE constitutes the second base material 62B.

By the way, in the examples of (1) and (4), the isotropic easily tearing PET constituting the second base material 62B has a characteristic that the breaking strength in the second direction D2 and the breaking strength in the first direction D1 are equivalent. .. In this case, as the first base material 62A, it is preferable to use a stretched film such as lateral tear OPP or lateral tear HDPE whose breaking strength in the second direction D2 is smaller than the breaking strength in the first direction D1. In the laterally split plastic film constituting the first base material 62A, the ratio of the breaking strength in the second direction D2 to the breaking strength in the first direction D1 is preferably 1/2 or less, more preferably 1/4 or less. Is. In order to ensure tearability in a specific direction, the breaking strength in the specific direction is preferably 100 MPa or less.

[Second example]
In the second example, the first easily broken portion 51 is realized by the tearability of the stretched film in the first direction D1, and the second easily broken portion 52 and the third easily broken portion 53 are formed by the stretched film in the second direction D2. It is realized by the tearability of. A typical example of the layer structure of the film 20 in this example is shown below.
1st Base Material / 2nd Base Material / Sealant Layer One of the 1st base material 62A and the 2nd base material 62B is composed of, for example, laterally split OPP or laterally split HDPE, and the first base material 62A and the first base material 62A and the second base material 62B. The other of the two substrates 62B is composed of, for example, isotropic easily tearing PET.
A specific example of the layer structure of the film 20 in the second example is shown below.
(6) Isotropic easy tear PET12 / mark / LDPE15 / horizontal tear HDPE18 / AC / LLDPE20

As described above, the transverse tear HDPE has a characteristic that the breaking strength in the second direction D2 is smaller than the breaking strength in the first direction D1. Further, the isotropic easy tearing PET has a characteristic that it is easily torn in both the first direction and the second direction. Therefore, the tearability of the stretched film contained in the film 20 can be utilized to realize the first easily broken portion 51, the second easily broken portion 52, and the third easily broken portion 53.

[Third example]
In the third example, the first easily broken portion 51 is realized by the tearability of the stretched film in the first direction D1, and the second easily broken portion 52 and the third easily broken portion 53 are the scar group 66 or the half-cut portion. It is realized by processing such as 67. A typical example of the layer structure of the film 20 in this example is shown below.
First Base Material / Sealant Layer The first base material 62A is composed of a plastic film that is easily torn in both the first direction and the second direction, such as isotropic easily tearing PET.
A specific example of the layer structure of the film 20 in the third example is shown below.
(7) Isotropic easy tear PET15 / mark / DL / VMPET12 / DL / LLDPE25
VMPET means PET provided with a thin-film deposition layer (VM).

[4th example]
In the fourth example, the first easily broken portion 51 is realized by processing such as the scar group 66 or the half cut portion 67, and the second easily broken portion 52 and the third easily broken portion 53 are also the scar group 66 or the half. It is realized by processing such as the cut portion 67. An example of the layer structure of the film 20 in the fourth example is shown below.
(8) PET12 / mark / AC / LDPE15 / AL7 / AC / LLDPE30
(9) Horizontal tear OPP25 / mark / DL / VMPET12 / DL / CPP30
(10) Horizontal tear OPP25 / mark / DL / VMPE30
(11) Horizontal tear OPP25 / mark / DL / VMCPP20
(12) Isotropic easy tearing PET12 / mark / DL / CPP25

Bag Opening Method Next, the method of opening the bag 10 described above will be described with reference to FIGS. 10 to 14.

First, as shown in FIG. 10, the user breaks the gassho portion 36 from the tip portion 361 side of the gassho portion 36 to the accommodating portion 15 side along the first scheduled opening portion 40. Subsequently, as shown in FIG. 11, the user sets the divided portion 55 including the portion on the side of the second scheduled opening portion 45 of the gassho portion 36 after being broken and divided by the first scheduled opening portion 40. Pull in the direction indicated by the arrow F0 (direction toward the second edge portion 12 and the fourth edge portion 14). The direction of the arrow F0 is inclined with respect to both the first direction D1 and the second direction D2. Therefore, a force F1 parallel to the first direction D1 and a force F2 parallel to the second direction D2 act on the divided portion 55. Further, as described above, the first portion 23 is provided with the first easily broken portion 51 extending from the first scheduled opening portion 40 along the first direction D1, and the second portion 24 is provided with the first easily broken portion 51. A second easily broken portion 52 extending from the planned opening portion 40 along the second direction D2 is provided. Therefore, as shown in FIG. 11, the first portion 23 can be broken along the first easily broken portion 51, and at the same time, the first portion 23 can be broken along the second easily broken portion 52. As a result, the opening 17 can be formed in the bag 10. The breakage of the first easily broken portion 51 along the first direction D1 proceeds, for example, along the boundary between the portion of the first portion 23 where the gassho seal portion 35 is formed and the portion where the gassho seal portion 35 is not formed. ..

As shown in FIG. 12, the fractures along the first easily fractured portion 51 and the second easily fractured portion 52 are the end point of the fracture of the first easily fractured portion 51 and the first fracture when viewed along the second direction D2, for example. 3 This is carried out until the easily broken portion 53 overlaps. Subsequently, as shown in FIG. 13, the user breaks the gassho portion 36 from the tip portion 361 side of the gassho portion 36 to the accommodating portion 15 side along the second scheduled opening portion 45. As a result, the break path of the first portion 23 along the first easy break portion 51 and the break path of the gassho seal portion 35 along the second scheduled opening portion 45 are connected.

Subsequently, the user pulls the divided portion 55 along the second direction D2 as shown in FIG. As a result, the second portion 24 can be broken from the second scheduled opening portion 45 to the third easily broken portion 53. In this way, the bag 10 can be opened to form the opening 17.

According to the present embodiment, a first easily broken portion 51 extending from the first scheduled opening portion 40 in the first direction D1 is provided in the first portion 23, and a second extending from the first scheduled opening portion 40 in the second direction D2. By providing the easily broken portion 52 in the second portion 24, the bag 10 can be broken in the first direction D1 and the second direction D2 starting from the first scheduled opening portion 40. Further, by providing the second portion 24 with a third easily fractured portion 53 extending in the second direction at a position away from the second easily fractured portion 52 in the first direction D1, the end point of the fracture of the first easily broken portion 51 can be set. The bag 10 can be broken in the second direction D2 as a starting point. As a result, the opening 17 defined by the first easily broken portion 51, the second easily broken portion 52, and the third easily broken portion 53 can be formed in the bag 10. Further, the shape and area of the opening 17 can be adjusted by adjusting the arrangement of the first easily broken portion 51, the second easily broken portion 52, and the third easily broken portion 53. Therefore, since the opening 17 having a large width and area can be formed in the bag 10, the contents 16 can be easily taken out.

It is possible to make various changes to each of the above-described embodiments. Hereinafter, a modified example will be described. In the following description and the drawings used in the following description, the same reference numerals as those used for the corresponding parts in the above-described embodiments will be used for the parts that can be configured in the same manner as in each of the above-described embodiments. , Omit duplicate description. Further, when it is clear that the action and effect obtained in the above-described embodiment can be obtained in the modified example, the description thereof may be omitted.

(First modification)
In the above-described embodiment, an example is shown in which both the first scheduled opening portion 40 and the second scheduled opening portion 45 are provided in the gassho seal portion 35, but the present invention is not limited to this. As shown in FIG. 15, the bag 10 may include at least the first scheduled opening portion 40.

(Second modification)
In the above-described embodiment, an example in which the bag 10 is a pillow bag has been shown, but the present invention is not limited to this. The bag 10 may be a so-called three-way seal bag in which seal portions are provided along three of the four edge portions 11 to 14. In this case, one of the three seal portions is the gassho seal portion 35 provided with the first scheduled opening portion 40. For example, as shown in FIG. 16, the seal portion includes a gassho seal portion 35 extending along the first edge portion 11, a third seal portion 33 extending along the third edge portion 13, and a fourth edge portion 14. It has a fourth seal portion 34 extending from the surface.

FIG. 17 is a cross-sectional view of the bag 10 of FIG. 16 as viewed from the XVII-XVII direction. As shown in FIGS. 16 and 17, the bag 10 according to the present modification also includes a first scheduled opening portion 40 provided in the gassho portion 36, as in the case of the above-described embodiment. As shown in FIG. 16, the bag 10 further includes a second scheduled opening portion 45 provided in the gassho portion 36 at a position away from the first scheduled opening portion 40 toward the fourth edge portion 14 in the first direction D1. You may be. Further, the bag 10 further includes a first easily broken portion 51 provided in the first portion 23 so as to extend from the first scheduled opening portion 40 in the first direction D1. In this modification, the first portion 23 constitutes the back surface film 22 of the bag 10. Further, the bag 10 is separated from the second easily broken portion 52 provided in the second portion 24 so as to extend from the first scheduled opening portion 40 in the second direction D2 and the second easily broken portion 52 in the first direction D1. A third easily broken portion 53 provided in the second portion 24 at the position is further provided. In this modification, the second portion 24 constitutes the surface film 21 of the bag 10. In the gassho portion 36, a part of the first portion 23 forming the back surface film 22 on the first end portion 231 side and a part of the second portion 24 forming the front surface film 21 on the second end portion 241 side overlap. This is the part that is being used. In this modification, the first portion 23 and the second portion 24 may be composed of one film as shown in FIG.

Also in the bag 10 according to this modification, the bag 10 can be broken along the first easily broken portion 51 and the second easily broken portion 52 starting from the first scheduled opening portion 40. Further, the bag 10 can be broken along the third easily broken portion 53 starting from the end point of the break of the first easily broken portion 51. As a result, the opening defined by the first easily broken portion 51, the second easily broken portion 52, and the third easily broken portion 53 can be formed in the bag 10. Further, the shape and area of the opening 17 can be adjusted by adjusting the arrangement of the first easily broken portion 51, the second easily broken portion 52, and the third easily broken portion 53. Therefore, since the opening 17 having a large width and area can be formed in the bag 10, the contents 16 can be easily taken out.

(Third variant)
In the second modification described above, an example in which the bag 10 is a three-way seal bag is shown, but the present invention is not limited to this. The bag 10 may be a so-called four-sided seal bag in which seal portions are provided along all four edge portions 11 to 14. In this case, one of the four seal portions is the gas palm seal portion 35 formed on the gas palm portion 36 provided with the first scheduled opening portion 40. For example, as shown in FIG. 18, the gassho portion 36 provided with the first scheduled opening portion 40 constitutes the front surface film 21 with a part of the first end portion 231 side of the first portion 23 constituting the back surface film 22. This is a portion that overlaps with a part of the second end portion 241 side of the second portion 24. Further, the seal portion includes a gassho seal portion 35 extending along the first edge portion 11, a second seal portion 32 extending along the second edge portion 12, and a third seal portion extending along the third edge portion 13. It has 33 and a fourth seal portion 34 extending along the fourth edge portion 14.

In this modification, the first portion 23 and the second portion 24 may be composed of one film as shown in FIG. In this modification, the first portion 23 and the second portion 24 can each be composed of separate films, as shown in FIG.

The bag 10 according to the present modification also has the same first opening scheduled portion 40, first easily broken portion 51, second easily broken portion 52, and third easily broken portion 53 as in the case of the bag 10 according to the second modified example. To be equipped. Therefore, the opening defined by the first easily broken portion 51, the second easily broken portion 52, and the third easily broken portion 53 can be formed in the bag 10.

(Fourth modification)
In the above-described embodiment, an example is shown in which the first easily broken portion 51 extends so as to straddle the end portion of the gassho seal portion 35 on the accommodating portion 15 side. However, the present invention is not limited to this, and as shown in FIG. 20, when the second end portion 512 of the first easily broken portion 51 is viewed along the thickness direction of the first portion 23, the gassho seal portion 35 It may overlap with the end on the accommodating portion 15 side.

Further, in the above-described embodiment, an example is shown in which the second easily broken portion 52 extends so as to straddle the end portion of the gassho seal portion 35 on the accommodating portion 15 side. However, the present invention is not limited to this, and as shown in FIG. 20, when the second end portion 522 of the second easily broken portion 52 is viewed along the thickness direction of the second portion 24, the gassho seal portion 35 It may overlap with the end on the accommodating portion 15 side.

Although some modifications to the above-described embodiments have been described, it is naturally possible to apply a plurality of modifications in combination as appropriate.

10 Bag 11 1st edge 12 2nd edge 13 3rd edge 14 4th edge 15 Containment part 16 Contents 17 Opening 20 Film 21 Front surface film 22 Back surface film 23 1st part 231 1st end 24th 2 Part 241 2nd End 30 Seal 31 1st Seal 32 2nd Seal 35 Gassho Seal 36 Gassho 361 Tip 362 Base 40 1st Scheduled Opening 41 Notch 45 2nd Scheduled Opening 46 Notch 51 1 Easy break part 52 2nd easy break part 53 3rd easy break part 61 Sealant layer 62 1st base material 63 Intermediate layer 64 1st adhesive layer 65 2nd adhesive layer 66 2nd base material 66 Scar group 661 Hole 67 Half cut Part 671 hole

Claims (6)

A bag with a storage compartment for the contents
One or more films having at least a first portion including a first end extending in a first direction and a second portion including a second end extending in the first direction. Or with multiple films
A gassho portion in which a part of the first portion on the first end side and a part of the second portion on the second end side overlap, and at least partially, a gassho seal portion. With the gassho part joined along the first direction by
The first scheduled opening part provided in the gassho part and
A first easily broken portion provided in the first portion so as to extend from the first scheduled opening portion in the first direction, and a first easily broken portion.
A second easily broken portion provided in the second portion so as to extend from the first scheduled opening portion in the second direction intersecting the first direction, and
A third easily broken portion provided in the second portion so as to extend in the second direction at a position away from the second easily broken portion in the first direction is provided .
A bag in which the first easily broken portion is in contact with the gassho portion. The bag according to claim 1, wherein the first scheduled opening portion includes a notch formed in the first end portion of the first portion and the second end portion of the second portion. The first easily broken portion includes a group of scars formed in the first portion.
The bag according to claim 1 or 2, wherein the second easily broken portion and the third easily broken portion include a scar group or a half-cut portion formed in the second portion. The first portion comprises a stretched film stretched along the first direction.
The bag according to claim 1 or 2, wherein the second easily broken portion and the third easily broken portion include a scar group or a half-cut portion formed in the second portion. The first easily broken portion includes a group of scars formed in the first portion.
The bag according to claim 1 or 2, wherein the second portion includes a stretched film stretched along the second direction. A second scheduled opening portion provided in the gassho portion is further provided at a position away from the first scheduled opening portion in the first direction.
The bag according to any one of claims 1 to 5, wherein the third easily broken portion extends in the second direction from the second scheduled opening portion.

Images