JP2018193108A - bag - Google Patents

Abstract

To provide a bag which can be opened.SOLUTION: A bag 10 which includes a housing part 15 that houses contents is one or plural sheets of films, and comprises one or plural sheets of films which include at least a first part 23 including a first end part 231 extending in a first direction and a second part 24 including a second end part extending in a first direction, a joint part 36 in which the one or plural sheets of films, a part of the first end part side of the first part and a part of the second end part side of the second part are superimposed with each other and which is jointed at least partially by a joint seal part 35, a first opening planned part 40 which is provided in the joint part, a first easily-breaking part 51 which is provided at the first part as extending from the first opening planned part to the first direction, a second easily-breaking part 52 which is provided at the second part as extending from the first opening planned part to the second direction crossing the first direction, and a third easily-breaking part 53 which is provided at the second part as extending in the second direction at a position apart from the second easily-breaking part in the first direction.SELECTED DRAWING: Figure 1

Description

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

  A bag made of a soft packaging material such as PET or nylon is used as a bag for containing the contents. For example, as described in Patent Document 1, such a bag is configured by thermally welding the inner surfaces of a film including a soft packaging material to form a seal portion. In this case, the accommodating part for accommodating the contents is defined as a space surrounded by the film and the seal part.

  A bag made of a flexible packaging material is usually provided with an opening start means for making it easier to open the bag by breaking the seal portion. For example, Patent Document 1 proposes providing a scar group at the end of the back seal as an opening start means. The bag described in Patent Document 1 can be opened at the back seal portion by breaking the bag film along the scar group.

JP-A-6-48450

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

  An object of this invention is to provide the bag which can solve such a subject effectively.

  The present invention is a bag provided with a storage unit for storing contents, and is a one or a plurality of films, a first part including a first end extending in a first direction, and the first direction One or a plurality of films having at least a second portion including a second end extending to the first portion, a portion of the first portion on the first end side, and the second portion of the second portion A palm portion that overlaps with a portion of the second end side, a palm portion that is at least partially joined along the first direction by a palm seal portion, and a first portion provided in the palm portion A first opening portion, a first easily breakable portion provided in the first portion so as to extend in the first direction from the first opening portion, and a first crossing in the first direction from the first opening portion. A second easily breakable portion provided in the second portion so as to extend in two directions, and in the first direction And a third frangible portion disposed at a position away from the serial second frangible portion to said second portion so as to extend in the second direction, and a bag.

  In the bag according to the present invention, the first opening scheduled 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 breakable part includes a group of scars formed in the first part, and the second easily breakable part and the third easily breakable part are formed in the second part. A scar group or a half cut portion may be included.

  In the bag according to the present invention, the first portion includes a stretched film stretched along the first direction, and the second easily breakable portion and the third easily breakable portion are formed in the second portion. A scar group or a half cut portion may be included.

  In the bag according to the present invention, the first easily breakable portion includes a scar group formed in the first portion, and the second portion includes a stretched film stretched along the second direction. Good.

  The bag according to the present invention further includes a second opening planned portion provided in the palm portion at a position away from the first opening planned portion in the first direction, and the third easily breakable portion includes the second opening portion. You may extend in the said 2nd direction from the plan part.

  According to the present invention, the bag can be broken along the first easily breakable portion, the second easily breakable portion, and the third easily breakable portion. For this reason, the opening part defined by the 1st easily breakable part, the 2nd easily breakable part, and the 3rd easily breakable part can be formed in a bag.

It is a top view which shows the bag in embodiment of this invention when a palm part exists in the state which opposes a 2nd part. It is a top view which shows the bag in embodiment of this invention when a palm part exists in the state which opposes a 1st part. It is sectional drawing which looked at the bag of FIG. 1 from the III-III direction. It is sectional drawing which shows an example of the laminated constitution of the film which comprises a bag. It is sectional drawing which shows an example of the laminated constitution of the film which comprises a bag. It is a top view which shows an example of a 1st easily breakable part. It is sectional drawing which looked at the 1st easily fracture part of FIG. 5 from the VI-VI direction. It is a top view which shows an example of a 2nd easily fracture part. It is a top view which shows an example of a 2nd easily fracture part. It is sectional drawing which looked at the 2nd easily broken part of FIG. 8 from the IX-IX direction. It is a figure which shows the process of fracture | rupturing a palm part along a 1st opening plan part. It is a figure which shows the process of breaking a 1st part and a 2nd part along a 1st easily breakable part and a 2nd easily breakable part. It is a figure which shows the process of breaking a 1st part and a 2nd part along a 1st easily breakable part and a 2nd easily breakable part. It is a figure which shows the process of fracture | rupturing a palm part along a 2nd opening plan part. It is a figure which shows the process of breaking a 2nd part along a 3rd easily breakable 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 a bag.

  Embodiments of the present invention will be described below with reference to FIGS. Note that, in the drawings attached to the present specification, for convenience of illustration and understanding, the scale and vertical / horizontal dimension ratios are appropriately changed and exaggerated from those of the actual ones.

  In addition, as used in this specification, the shape and geometric conditions and the degree thereof are specified, for example, terms such as “parallel”, “orthogonal”, “identical”, length and angle values, etc. are strictly Without being bound by meaning, it should be interpreted including the extent to which similar functions can be expected.

The bag 10 includes a surface film 21, a back film 22 that faces the surface film 21, and a seal portion that joins the inner surfaces of the film. As will be described later, in the example illustrated in FIG. 1, the front film 21 and the back film 22 are configured by folding a single film. The seal portion is configured to define and seal the accommodating portion 15 that accommodates the contents. The bag 10 includes a palm portion 36 in which a part of a first part and a part of a second part, which will be described later, overlap each other. The seal portion includes a palm seal portion 35 formed on the palm portion 36. In the example shown in FIG. 1, the palm portion 36 and the palm 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. FIG.1 and FIG.2 is a top view which shows the case where the bag 10 in this Embodiment is seen from the surface film 21 side. FIG. 3 is a cross-sectional view showing the bag 10 shown in FIG. 1 as viewed from the III-III direction.

In the bag 10 according to the present embodiment, it is assumed that the user tears the joint portion 36 and the surface film 21 to open the bag 10 and takes out the contents stored in the storage portion 15. . As the contents, those suitable for such usage are selected.
When the bag 10 is a primary packaging container that directly wraps the contents, the form of the contents is, for example, a granule, a powder, a solid, or the like.
When the bag 10 is a secondary packaging container that accommodates a primary packaging container that directly packages the contents, the form of the contents is not particularly limited. For example, the form of the content may be the above-described granule, powder, solid, or the like, 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 that face each other, and a third edge portion 13 and a fourth edge portion 14 that face 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 a first direction D1. A 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 example shown in FIGS. 1 and 2, the second direction D2 is orthogonal to the first direction D1. The third edge portion 13 and the fourth edge portion 14 extend in parallel with the second direction D2.

  FIG. 1 shows a state where the above-described palm portion 36 is tilted to the second edge portion 12 side. FIG. 2 shows a state where the palm portion 36 is tilted to the first edge portion 11 side.

  In FIG. 1, the code | symbol L10 represents the length of the 1st edge part 11 and the 2nd edge part 12 in the 1st direction D1. L10 is, for example, 60 mm or more and 300 mm or less. The symbol L20 represents the lengths of the third edge 13 and the fourth edge 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, not less than 0.5 and not more than 1.5. The symbol L21 represents the distance from the first edge portion 11 to the palm seal portion 35 in the second direction D2.

  As shown in FIGS. 1 and 2, the palm 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 palm seal portion 35 (base portion 362 of the palm portion 36) is smaller than the distance from the second edge portion 12 to the palm seal portion 35 (base portion 362 of the palm portion 36). It may be. For example, the ratio of the distance L21 to the length L20 is not less than 0.1 and not more than 0.7. As will be described later, when the bag 10 according to the present embodiment is opened, an opening is formed in a region extending from the palm seal portion 35 to the second edge portion 12. By disposing the palm 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 the front film 21 and the back film 22. In the example shown in FIGS. 1 and 2, the front film 21 and the back film 22 are configured by folding one film at the first edge 11 and the second edge 12 along the first direction D1. . In the present embodiment, the portion of the film that is folded back at the first edge 11 to form the surface film 21 is referred to as a first portion 23. As shown in FIGS. 1 and 3, the first portion 23 includes a first end 231 extending in the first direction D1. Further, a 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 241 extending in the first direction D1, as shown in FIGS. The above-described palm portion 36 is a portion in which a portion including the first end 231 in the first portion 23 and a portion including the second end 241 in the second portion 24 are overlapped. The first end 231 of the first portion 23 and the second end 241 of the second portion 24 serve as the tip 361 of the palm 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 surface film 21 may be composed of a single film, and the back film 22 may be composed of a single film different from the film constituting the surface film 21.

  Next, the seal part which joins the inner surfaces of the film which comprises the bag 10 is demonstrated. In the example 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 palm seal portion 35. Have In addition, as long as a film can be joined and the bag 10 can be sealed, the method for forming a seal part is not particularly limited. For example, the sealing portion may be formed by melting the films by heating or the like and welding the films. Or you may form a seal | sticker part by adhere | attaching films using an adhesive agent etc.

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

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

  As shown in FIG. 4A, the film 20 includes at least a sealant layer 61 and a first base material 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. The film 20 may further include a functional layer 63 positioned between the sealant layer 61 and the first base material 62A. The film may further include an adhesive layer such as a first adhesive layer 64 that bonds the sealant layer 61 and the functional layer 63, and a second adhesive layer 65 that bonds the first base material 62A and the functional layer 63. Good. The thickness of the film 20 is, for example, not less than 50 μm and not more than 130 μm.

Examples of the method for laminating the sealant layer 61, the first base material 62A, and the functional layer 63 as necessary include a dry laminating method and an extrusion laminating method.
In the dry laminating method, the film-like sealant layer 61, the film-like first base material 62A, and the like are bonded using an adhesive. In this case, the first adhesive layer 64 and the second adhesive layer 65 include an adhesive such as an ether adhesive.
In the extrusion laminating method, for example, the sealant layer 61 is formed in a molten state on the film-like first base material 62A or on the laminate of the film-like 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. 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 a material constituting the sealant layer 61, for example, polyethylene such as ethylene-methacrylic acid copolymer (EMMA), low density polyethylene (LDPE), linear low density polyethylene (LLDPE), or polypropylene can be used. For example, an unstretched polypropylene film can be used as the polypropylene. 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 a material constituting the first base 62A, for example, a polyester such as polyethylene terephthalate or polybutylene terephthalate, a polyamide such as nylon, 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. Conversely, 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 the plastic film 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, Also called “lateral tear”. Of 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 tearing”. Of the characteristics of the plastic film, the breaking strength in the first direction D1 is the same as the breaking strength in the second direction D2, and it is easy to tear in both the first direction D1 and the second direction D2. , Also called “isotropic easy tear”.
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 ½ or less, more preferably ¼ 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. As will be described later, the laterally split plastic film is, for example, laterally split OPP or laterally split HDPE.
Further, in the longitudinally 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 ½ or less, more preferably ¼ or less. In the longitudinally 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.
Moreover, in the plastic film of isotropic easy tear, 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 plastic film of isotropic easy tear, 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 plastic film of isotropic easy tear is, for example, isotropic easy tear PET as described later.

  Further, the first base 62A may be provided with a print display for displaying product information or imparting aesthetics. Examples of the print display include letters, 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 layer can be selected according to 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. The functional layer 63 may be a vapor deposition layer or a resin layer provided on the first base material 62A. A vapor deposition layer contains the substance which has gas barrier properties, such as inorganic substances, such as aluminum, and inorganic oxides, such as aluminum oxide and silicon oxide, for example. The resin layer includes 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 bag 10.
Note that the above-described layer exemplified as the functional layer 63 is the outer side (outer surface) of the first base material 62A instead of the functional layer 63 between the first base material 62A and the sealant layer 61 or in addition to the functional layer 63. (S2 side) may be provided.

  As shown in FIG. 4B, the film 20 may further include a second base material 62 </ b> B positioned between the first base material 62 </ b> A and the sealant layer 61. As the material constituting the second base material 62B, as in the first base material 62A, for example, a polyester such as polyethylene terephthalate or polybutylene terephthalate, polyamide such as nylon, or a plastic such as polyolefin such as high-density polyethylene or polypropylene is used. Can do. Similarly to the first base material 62A, the second base material 62B may be a laterally split plastic film or a longitudinally split plastic film.

  Also in the example shown in FIG. 4B, the film 20 may further include the functional layer 63 described above. 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 a further 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 configuration of the front film 21 and the layer configuration of the back film 22 may be the same or different.

  Next, components for tearing the bag 10 and opening the bag 10 will be described. As shown in FIGS. 1 and 2, the bag 10 includes a first easy-to-open portion 40 and a second pre-opening portion 45 provided in the palm portion 36, and a first easy portion provided in the first portion 23 of the surface film 21. A breakable portion 51 and a second easily breakable portion 52 and a third easily breakable portion 53 provided in the second portion 24 of the surface film 21 are provided.

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

  As shown in FIGS. 1 and 2, the first opening scheduled 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 distal end portion 361 side of the palm 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. Thereby, the component of the force that the user applies to the bag 10 when opening the bag 10 includes both the component in the first direction D1 and the component in the second direction D2. This makes it easy to break the first easily breakable portion 51 and the second easily breakable portion 52.

  In addition, as long as the 1st scheduled opening part 40 can cross the palm seal part 35 in the direction which cross | intersects the 1st direction D1, the direction where the 1st scheduled opening part 40 and the notch 41 extend is not restricted in particular. For example, although not shown, the direction in which the notch 41 extends may be parallel to the second direction D2.

(Second opening planned part)
Similarly to the first opening scheduled portion 40, the second opening scheduled portion 45 is a portion that triggers breakage when the palm portion 36 and the palm seal portion 35 are broken in order to open the bag 10. As shown in FIGS. 1 and 2, the second opening scheduled portion 45 is provided in the palm portion 36 at a position away from the first opening scheduled portion 40 toward the fourth edge portion 14 in the first direction D1. The distance L11 between the first opening scheduled portion 40 and the second opening scheduled 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.

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

  Similarly to the case of the first opening scheduled portion 40 and the notch 41, the second opening scheduled portion 45 and the notch 46 may extend in a direction inclined with respect to both the first direction D1 and the second direction D2. . For example, the notch 46 is configured to be displaced toward the third edge 13 side from the distal end 361 side of the palm 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.

(First easy break)
The first easily breakable portion 51 is a portion of the first portion 23 that is easily broken. As shown in FIGS. 1 and 2, the first easily breakable portion 51 is provided in the first portion 23 so as to extend in the first direction D <b> 1 from the first opening scheduled portion 40 to the second opening scheduled portion 45. Yes. By providing the first easily breakable part 51, the user breaks the joint part 36 and the joint seal part 35 along the first opening scheduled part 40, and then turns the first part 23 into the first easily breakable part 51. Can be broken along.

  As shown in FIG. 3, the first easily breakable portion 51 includes a first end portion 511 and a second end portion 512 that faces the first end portion 511 in the second direction D2. The first end portion 511 is disposed so as not to overlap with the palm 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 the palm seal portion 35 when viewed along the thickness direction of the first portion 23. In other words, the first easily breakable portion 51 may extend so as to straddle the end of the joint seal portion 35 on the accommodating portion 15 side. Alternatively, as will be described later, the second end portion 512 of the first easily breakable portion 51 overlaps the end portion on the accommodating portion 15 side of the joint seal portion 35 when viewed along the thickness direction of the first portion 23. May be. Or although not shown in figure, when it sees along the thickness direction of the 1st part 23, between the 2nd end part 512 of the 1st easily breakable part 51 and the edge part by the side of the accommodating part 15 of the palm seal part 35 In addition, a slight gap, for example, a gap of 5 mm or less may exist.

  Hereinafter, a specific structure of the first easily breakable portion 51 will be described. FIG. 5 is an enlarged plan view showing the first easily breakable portion 51 shown in FIG. The first easily breakable 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 breakable portion 51 of FIG. 5 as seen from the VI-VI direction. The hole 661 passes through at least the first base material 62A. Such a hole 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 blade. In addition, when the film 20 further includes the second base material 62B, the hole 661 may further penetrate the second base material 62B. In this case, the hole 661 can be formed by processing the laminated body in which the first base material 62A and the second base material 62B are bonded using a rotary die roll provided with a cutting blade.

  Note that the specific structure of the hole 661 is not particularly limited as long as the ease of breaking the first portion 23 can be increased. For example, when the gas barrier property is not required for the bag 10, the hole 661 may penetrate not only the first base material 62 </ b> A but the entire film 20. The holes 661 may be a plurality of cuts formed in the film 20 from the outer surface S2 side. In this case, the direction in which the cut extends may be parallel to the first direction D1.

  The first easily breakable 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 film, for example, as the first base material 62A and the second base material 62B. As a 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), or polypropylene can be used. When the 1st part 23 contains such a stretched film, the 1st part 23 becomes easy to fracture | rupture in the 1st direction D1 over the whole region.

  When the first easily breakable 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. Preferably, it is 20 degrees or less. Thereby, the stretched film which comprises the 1st base material 62A and the 2nd base material 62B turns into the above-mentioned vertical tear plastic film which is easy to fracture | rupture in the 1st direction D1.

  The stretched film refers to a film having a tensile elongation of less than 300%, preferably 200% or less when measured according to JIS K7127. When the 1st easily breakable part 51 is implement | achieved with a stretched film, it is preferable that the tensile strength of the stretched film in the 1st direction D1 is 100 Mpa or less.

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

  In FIG. 1, reference sign θ <b> 1 represents an angle formed by a direction in which the first easily breakable portion 51 extends and a direction in which the second easily breakable portion 52 extends. The angle θ1 is preferably not less than 70 degrees and not more than 100 degrees, more preferably not less than 80 degrees and not more than 95 degrees.

  As shown in FIG. 2, the second easily breakable portion 52 includes a first end portion 521 and a second end portion 522 that faces the first end portion 521 in the second direction D2. The first end portion 521 is disposed so as not to overlap with the palm seal portion 35 when viewed along the thickness direction of the second portion 24. For example, as shown in FIG. 2, the first end 521 is disposed so as to overlap the second edge 12 or close to the second edge 12. As shown in FIGS. 2 and 3, the second end 522 may overlap with the palm seal part 35 when viewed along the thickness direction of the second portion 24. In other words, the 2nd easily breakable part 52 may be extended in the 2nd direction D2 so that the edge part by the side of the accommodating part 15 of the palm seal part 35 may be straddled. Alternatively, as will be described later, the second end portion 522 of the second easily breakable portion 52 overlaps the end portion on the accommodating portion 15 side of the joint seal portion 35 when viewed along the thickness direction of the second portion 24. May be. Or although not shown in figure, when it sees along the thickness direction of the 2nd part 24, between the 2nd edge part 522 of the 2nd easily breakable part 52 and the edge part by the side of the accommodating part 15 of the palm seal part 35 In addition, a slight gap, for example, a gap of 5 mm or less may exist.

  Hereinafter, a specific structure of the second easily breakable portion 52 will be described. FIG. 7 is an enlarged plan view showing the second easily breakable portion 52 shown in FIG. The second easily breakable 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 breakable 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 hole 661 constituting the scar group 66 of the second easily breakable part 52 is the same as the structure of the hole 661 constituting the scar group 66 of the first easily breakable part 51, detailed description thereof is omitted.

  FIG. 8 is an enlarged plan view showing another example of the second easily breakable portion 52. The second easily breakable part 52 may include a half cut part 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. It may extend to.

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

  Although not shown, the half-cut portion 67 penetrates the first base material 62A, but does not have to penetrate the second adhesive layer 65. In this case, for example, first, a through-hole or a slit that penetrates the first base material 62A is formed in the first base material 62A using a blade, and then the first base material 62A and another layer are laminated. . Thereby, the film 20 in which the half cut portion 67 is formed in the second portion 24 can be obtained.

  Although not shown, the first easily breakable portion 51 described above may also include a half cut portion similar to the half cut portion 67 of the second easily breakable 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 breakable portion 52 may be realized by the tearability of the film itself constituting the second portion 24. For example, the second portion 24 includes a stretched film stretched at least uniaxially, preferably biaxially, as the first base material 62A, for example.

  When the second easily breakable 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. More preferably it is.

  When the second easily breakable portion 52 is realized by a stretched film, the specific material constituting the stretched film and its tensile elongation are the same as when the first easily breakable portion 51 is realized by a stretched film. Detailed description is omitted.

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

  In FIG. 1, symbol θ <b> 2 represents an angle formed by a direction in which the first easily breakable portion 51 extends and a direction in which the third easily breakable portion 53 extends. The angle θ2 is preferably not less than 70 degrees and not more than 100 degrees, more preferably not less than 80 degrees and not more than 95 degrees.

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

(A combination example of the first easily breakable part, the second easily breakable part, and the third easily breakable part)
As described above, the first easily breakable portion 51, the second easily breakable portion 52, and the third easily breakable portion 53 may be realized by processing such as the scar group 66 or the half cut portion 67, respectively. It may be realized by the tearability of the film 20 itself, such as a film. Therefore, various examples are conceivable as combinations of the first easily breakable portion 51, the second easily breakable portion 52, and the third easily breakable portion 53. Hereinafter, four typical examples will be described together with examples of the layer configuration of the film 20 used in each example.

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

Specific examples of the layer configuration of the film 20 in the first example are listed below. “/” Represents a 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) Lateral tear OPP25 / mark / DL / AL7 / DL / isotropic easy tear PET14 / DL / LLDPE30
(2) Lateral tear OPP25 / mark / AC / EMAA15 / AL7 / AC / PE15 / LLDPE30
(3) Lateral tear OPP25 / mark / AC / LDPE15 / lateral tear HDPE18 / AC / LLDPE20
(4) Lateral tear OPP20 / mark / AC / LDPE15 / isotropic easy tear PET12 / AC / LLDPE20
(5) OPP20 / Indicator AC / LDPE15 / Transverse HDPE18 / AC / LLDPE20
“OPP” means stretched polypropylene film. “Mark” means a print layer constituting 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. Moreover, the numerical value attached | subjected to the right side of material represents the thickness of each layer. The unit of thickness is μm.

  In the examples of (1) to (5), the left-side lateral tear OPP or OPP constitutes the first base material 62A. In the examples of (1), (3), (4), and (5), isotropic easy tear PET or lateral tear HDPE constitutes the second substrate 62B.

  By the way, the isotropic easy tear PET which comprises the 2nd base material 62B in the example of (1) and (4) has the characteristic that the breaking strength in the 2nd direction D2 and the breaking strength in the 1st direction D1 are equivalent. . In this case, as the first base material 62A, it is preferable to use a stretched film whose breaking strength in the second direction D2 is smaller than that in the first direction D1, such as transverse tearing OPP and transverse tearing HDPE. In the laterally split plastic film constituting the first substrate 62A, the ratio of the breaking strength in the second direction D2 to the breaking strength in the first direction D1 is preferably ½ or less, more preferably ¼ or less. It 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 breakable part 51 is realized by the tearability of the stretched film in the first direction D1, and the second easily breakable part 52 and the third easily breakable part 53 are stretched in the second direction D2. Realized by the tearability of A typical example of the layer configuration of the film 20 in this example is shown below.
The first base material / second base material / sealant layer One of the first base material 62A and the second base material 62B is composed of, for example, laterally split OPP, laterally split HDPE, and the like. The other of the two base materials 62B is made of, for example, isotropic easy tear PET.
A specific example of the layer configuration of the film 20 in the second example is shown below.
(6) Isotropic easy tear PET12 / mark / LDPE15 / lateral tear HDPE18 / AC / LLDPE20

  As described above, the lateral 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 tear PET has a characteristic that it is easy to tear in both the first direction and the second direction. For this reason, the 1st easily breakable part 51, the 2nd easily breakable part 52, and the 3rd easily breakable part 53 are realizable using the tearability of the stretched film contained in the film 20. FIG.

[Third example]
In the third example, the first easily breakable portion 51 is realized by the tearability of the stretched film in the first direction D1, and the second easily breakable portion 52 and the third easily breakable portion 53 are separated from the scar group 66 or the half cut portion. This is realized by processing such as 67. A typical example of the layer configuration of the film 20 in this example is shown below.
First Base Material / Sealant Layer The first base material 62A is made of a plastic film that is easily torn in both the first direction and the second direction, such as isotropic easy tear PET.
A specific example of the layer configuration 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 vapor deposition layer (VM).

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

Unsealing method bag Next, a method of opening a bag 10 described above will be described with reference to FIGS. 10 to 14.

  First, as shown in FIG. 10, the user breaks the palm portion 36 along the first opening scheduled portion 40 from the distal end 361 side of the palm portion 36 to the accommodating portion 15 side. Subsequently, as shown in FIG. 11, the user breaks the cut portion 55 including the portion on the second opening scheduled portion 45 side of the palm portion 36 after being broken and divided by the first opening scheduled portion 40. Pull in the direction indicated by the arrow F0 (direction toward the second edge 12 and the fourth edge 14). The direction of the arrow F0 is inclined with respect to both the first direction D1 and the second direction D2. For this reason, 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 breakable portion 51 extending from the first opening scheduled portion 40 along the first direction D1, and the second portion 24 has the first portion A second easily breakable portion 52 extending from the planned opening portion 40 along the second direction D2 is provided. For this reason, as shown in FIG. 11, the first portion 23 can be broken along the first easily breakable portion 51, and at the same time, it can be broken along the second easily breakable portion 52. Thereby, the opening part 17 can be formed in the bag 10. The breakage of the first easily breakable portion 51 along the first direction D1 proceeds, for example, along the boundary between the portion of the first portion 23 where the palm seal portion 35 is formed and the portion where it is not formed. .

  As shown in FIG. 12, the break along the first easily breakable portion 51 and the second easily breakable portion 52 is, for example, when viewed along the second direction D2, the end point of the break of the first easily breakable portion 51 and the second breakable portion This is performed until the 3 easy breakable portion 53 overlaps. Subsequently, as shown in FIG. 13, the user breaks the palm portion 36 along the second scheduled opening portion 45 from the distal end portion 361 side of the palm portion 36 toward the accommodating portion 15 side. Thereby, the fracture | rupture path | route of the 1st part 23 in alignment with the 1st easily breakable part 51 and the fracture | rupture path | route of the palm seal part 35 in alignment with the 2nd opening scheduled part 45 are connected.

  Subsequently, as shown in FIG. 14, the user pulls the divided portion 55 along the second direction D2. Thereby, the 2nd part 24 can be fractured | ruptured from the 2nd opening scheduled part 45 along the 3rd easily breakable part 53. FIG. In this way, the bag 10 can be opened to form the opening 17.

  According to the present embodiment, the first easily breakable portion 51 extending from the first opening scheduled portion 40 in the first direction D1 is provided in the first portion 23, and the second extending from the first opening scheduled portion 40 in the second direction D2 is performed. By providing the easily breakable portion 52 in the second portion 24, the bag 10 can be broken in the first direction D1 and the second direction D2 with the first opening scheduled portion 40 as a starting point. Further, by providing the second portion 24 with a third easily breakable portion 53 extending in the second direction at a position away from the second easily breakable portion 52 in the first direction D1, the end point of breakage of the first easily breakable portion 51 is obtained. As a starting point, the bag 10 can be broken in the second direction D2. Thereby, the opening part 17 defined by the first easily breakable part 51, the second easily breakable part 52 and the third easily breakable part 53 can be formed in the bag 10. Moreover, the shape and area of the opening part 17 can be adjusted by adjusting the arrangement of the first easily breakable part 51, the second easily breakable part 52, and the third easily breakable part 53. For this reason, since the opening part 17 with a large width | variety and an area can be formed in the bag 10, the content 16 can be made easy to take out.

  Various modifications can be made to the above-described embodiments. Hereinafter, modified examples 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 embodiment are used for the parts that can be configured in the same manner as in each of the above embodiments. The duplicated explanation is omitted. In addition, when it is clear that the operational effects 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, the example in which both the first opening scheduled portion 40 and the second opening scheduled portion 45 are provided in the joint seal portion 35 is shown, but the present invention is not limited to this. As shown in FIG. 15, the bag 10 only needs to include at least the first opening scheduled portion 40.

(Second modification)
In the above-described embodiment, an example in which the bag 10 is a pillow bag is 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 palm seal portion 35 provided with the first scheduled opening portion 40. For example, as shown in FIG. 16, the seal portion is provided along the palm seal portion 35 extending along the first edge portion 11, the third seal portion 33 extending along the third edge portion 13, and the fourth edge portion 14. And a fourth seal portion 34 extending in the direction.

  FIG. 17 is a cross-sectional view of the bag 10 of FIG. 16 viewed from the XVII-XVII direction. As shown in FIGS. 16 and 17, the bag 10 according to this modification also includes a first opening scheduled portion 40 provided in the palm 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 on the palm portion 36 at a position away from the first scheduled opening portion 40 toward the fourth edge portion 14 in the first direction D1. It may be. The bag 10 further includes a first easily breakable portion 51 provided in the first portion 23 so as to extend from the first opening scheduled portion 40 in the first direction D1. In the present modification, the first portion 23 constitutes the back film 22 of the bag 10. Further, the bag 10 is separated from the second easily breakable portion 52 provided in the second portion 24 so as to extend in the second direction D2 from the first opening scheduled portion 40, and in the first direction D1. And a third easily breakable portion 53 provided in the second portion 24 at the position. In the present modification, the second portion 24 constitutes the surface film 21 of the bag 10. In the palm portion 36, a part of the first part 23 constituting the back film 22 on the first end 231 side overlaps with a part of the second part 24 constituting the surface film 21 on the second end 241 side. It is a part that. In the present modification, the first portion 23 and the second portion 24 can be constituted by a single film as shown in FIG.

  Also in the bag 10 according to this modification, the bag 10 can be broken along the first easily breakable portion 51 and the second easily breakable portion 52 with the first opening scheduled portion 40 as a starting point. Further, the bag 10 can be broken along the third easy-to-break part 53 starting from the end point of the break of the first easy-to-break part 51. Thereby, an opening defined by the first easily breakable part 51, the second easily breakable part 52 and the third easily breakable part 53 can be formed in the bag 10. Moreover, the shape and area of the opening part 17 can be adjusted by adjusting the arrangement of the first easily breakable part 51, the second easily breakable part 52, and the third easily breakable part 53. For this reason, since the opening part 17 with a large width | variety and an area can be formed in the bag 10, the content 16 can be made easy to take out.

(Third Modification)
In the second modified example described above, an example in which the bag 10 is a three-side sealed bag is shown, but the present invention is not limited to this. The bag 10 may be a so-called four-side sealed 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 a palm seal portion 35 formed on the palm portion 36 provided with the first opening scheduled portion 40. For example, as shown in FIG. 18, the palm portion 36 provided with the first opening scheduled portion 40 constitutes the surface film 21 with a part of the first portion 23 constituting the back film 22 on the first end 231 side. This is a portion where a part of the second portion 24 on the second end portion 241 side overlaps. Further, the seal portions include a palm 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. 33 and a fourth seal portion 34 extending along the fourth edge portion 14.

  In the present modification, the first portion 23 and the second portion 24 can be constituted by a single film as shown in FIG. In the present modification, each of the first portion 23 and the second portion 24 can be constituted by a separate film as shown in FIG.

  The bag 10 according to the present modification also has the same first opening planned portion 40, first easily breakable portion 51, second easily breakable portion 52, and third easily breakable portion 53 as those of the bag 10 according to the second modification. Is provided. Therefore, an opening defined by the first easily breakable part 51, the second easily breakable part 52, and the third easily breakable part 53 can be formed in the bag 10.

(Fourth modification)
In the above-described embodiment, the example in which the first easily breakable portion 51 spreads so as to straddle the end portion on the accommodating portion 15 side of the joint seal portion 35 has been shown. 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 breakable portion 51 is viewed along the thickness direction of the first portion 23, You may overlap with the edge part by the side of the accommodating part 15.

  Moreover, in the above-mentioned embodiment, the 2nd easily fracture | rupture part 52 showed the example extended so that the edge part by the side of the accommodating part 15 of the palm seal part 35 might be straddled. However, the present invention is not limited to this. As shown in FIG. 20, when the second end portion 522 of the second easily breakable portion 52 is viewed along the thickness direction of the second portion 24, You may overlap with the edge part by the side of the accommodating part 15.

  In addition, although some modified examples with respect to the above-described embodiment have been described, naturally, a plurality of modified examples can be applied in combination as appropriate.

DESCRIPTION OF SYMBOLS 10 Bag 11 1st edge part 12 2nd edge part 13 3rd edge part 14 4th edge part 15 Storage part 16 Contents 17 Opening part 20 Film 21 Surface film 22 Back surface film 23 1st part 231 1st edge part 24 1st 2 part 241 2nd end part 30 Seal part 31 1st seal part 32 2nd seal part 35 Joint seal part 36 Joint part 361 Tip part 362 Base 40 First opening planned part 41 Notch 45 Second opening scheduled part 46 Notch 51 1st 1 easy breakable part 52 2nd easily breakable part 53 3rd easily breakable part 61 Sealant layer 62 First base material 63 Intermediate layer 64 First adhesive layer 65 Second adhesive layer 66 Second base material 66 Scratch group 661 Hole 67 Half cut Part 671 hole

Claims (6)

A bag having a receiving portion for storing contents,
One or more films, each having at least a first portion including a first end extending in the first direction and a second portion including a second end extending in the first direction Or multiple films,
A palm portion where a portion of the first portion on the first end side and a portion of the second portion on the second end portion side overlap, and at least partially a palm seal portion A palm portion joined along the first direction by:
A first opening planned portion provided in the palm portion;
A first easily breakable portion provided in the first portion so as to extend in the first direction from the first opening planned portion;
A second easily breakable portion provided in the second portion so as to extend in a second direction intersecting the first direction from the first opening planned portion;
And a third easily breakable portion provided in the second portion so as to extend in the second direction at a position away from the second easily breakable portion in the first direction.   The bag according to claim 1, wherein the first opening scheduled portion includes notches formed in the first end portion of the first portion and the second end portion of the second portion. The first easily breakable portion includes a scar group formed in the first portion,
The bag according to claim 1 or 2, wherein the second easily breakable part and the third easily breakable part include a scar group or a half cut part formed in the second part. The first portion includes a stretched film stretched along the first direction,
The bag according to claim 1 or 2, wherein the second easily breakable part and the third easily breakable part include a scar group or a half cut part formed in the second part. The first easily breakable portion includes a scar group 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 opening planned portion provided on the palm portion at a position away from the first opening planned portion in the first direction;
The bag according to any one of claims 1 to 5, wherein the third easily breakable portion extends in the second direction from the second opening scheduled portion.