JP2020066457A - Package - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a package capable of holding a state in which an opening is expanded by a shape holding member and facilitating linear formation of the opening.
SOLUTION: A package 1 has a first side film, a second side film, and a bottom film. The package 1 includes a peripheral edge portion 20, a storage portion 30, and a shape retaining member 40. The peripheral edge portion 20 includes a peripheral edge seal portion 21, a bottom seal portion 22, a planned sealing portion 23, and a notch CU. The shape retaining member 40 includes a super-stretched sheet. The molecular orientation direction of the super-stretched sheet is along the width direction WD of the package 1. The notch CU is arranged closer to the shape retaining member 40 than the middle between the ceiling portion UP of the peripheral edge portion 20 and the shape retaining member 40 in the up-and-down direction HD.
[Selection diagram] Figure 1

Description

  The present invention relates to a package.

  BACKGROUND ART Conventionally, there has been proposed a package that can store contents such as food. As this package, for example, Japanese Patent Application Laid-Open No. 2018-83640 (Patent Document 1) describes a packaging bag provided with a shape retaining member for retaining the shape of the opening formed by opening. There is. This package has notches in one and the other seal portions in the width direction of the package. The notch is arranged closer to the upper seal portion than the middle between the upper seal portion and the shape retaining member in the vertical direction of the package.

Japanese Patent Laid-Open No. 2018-83640

  In the standing pouch described in the above publication, the opening is formed by opening the package with a planned opening line provided between one and the other notches in the width direction of the package. When the opening is formed, the notch is arranged closer to the upper seal part than the middle between the upper seal part and the shape-retaining member in the vertical direction of the package, so that the opening is formed linearly. Is difficult. If the opening is not formed in a straight line, the contents may adhere to the opening or the tableware may contact the opening when the contents are taken out from the opening.

  The present invention has been made in view of the above problems, and an object thereof is to provide a packaging body that can hold a state in which an opening is expanded by a shape holding member and that can easily form a linear opening. Is to provide.

  The package of the present invention has a first side film, a second side film, and a bottom film. The second side film faces the first side film. The bottom film is arranged between the first side film and the second side film. The packaging body includes a peripheral portion, a storage portion, and a shape retaining member. The peripheral portion is arranged on the peripheral edges of the first side film and the second side film. The storage portion is surrounded by the peripheral portion. The shape retaining member is arranged between the first side surface film and the second side surface film, and is attached to at least one of the first side surface film and the second side surface film. The peripheral edge portion includes a peripheral edge seal portion, a bottom seal portion, a sealing target portion, and a notch. The peripheral edge seal part seals a part of the peripheral edges of the first side film and the second side film. The bottom seal portion seals each of the first side film and the second side film and the bottom film. The pre-sealing portion communicates the outside of the package with the storage portion in a state where the other peripheral portions of the first side film and the second side film are not sealed. The notch is provided on at least one of the one end and the other end of the package in the width direction. The shape-retaining member includes a super-stretched sheet that is disposed between the notch and the bottom seal portion in the vertical direction in which the ceiling portion of the peripheral edge portion and the bottom seal portion face each other, and that extends in the width direction. The molecular orientation direction of the super-stretched sheet is along the width direction of the package. The notch is arranged closer to the shape-retaining member than the middle between the ceiling portion of the peripheral edge and the shape-retaining member in the vertical direction.

  According to the package of the present invention, it is possible to maintain the state in which the opening is expanded by the shape maintaining member, and it is easy to form the opening on a straight line.

It is a front view which shows roughly the structure of the package which concerns on Embodiment 1 of this invention. It is sectional drawing which follows the II-II line of FIG. It is a perspective view which shows roughly the structure of the shape maintenance member of the package which concerns on Embodiment 1 of this invention. FIG. 4 is a cross-sectional perspective view taken along the line IV-IV in FIG. 3. It is sectional drawing which follows the VV line of FIG. It is a perspective view which shows roughly the structure of the package which concerns on Embodiment 1 of this invention, Comprising: It is a figure which shows the state with which the content was stored in the storage part. It is a perspective view which shows roughly the structure of the package which concerns on Embodiment 1 of this invention, Comprising: It is a figure which shows the state which the opening target part opened. It is a perspective view which shows the state which the opening of the package which concerns on Embodiment 1 of this invention was expanded. It is a front view which shows roughly the structure of the modification of the package which concerns on Embodiment 1 of this invention. It is sectional drawing which shows roughly the structure of the package which concerns on Embodiment 2 of this invention. It is a perspective view which shows roughly the structure of the packaging body which concerns on Embodiment 2 of this invention, Comprising: It is a figure which shows the state with which the content was stored in the storage part. It is a perspective view which shows roughly the structure of the package which concerns on Embodiment 2 of this invention, Comprising: It is a figure which shows the state which the opening target part opened. It is a perspective view which shows the state which the opening of the package which concerns on Embodiment 2 of this invention was expanded. It is a front view which shows roughly the structure of the package which concerns on Embodiment 3 of this invention. It is sectional drawing which follows the XV-XV line of FIG. It is a front view which shows roughly the structure of the package which concerns on Embodiment 4 of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following drawings, the same or corresponding parts will be denoted by the same reference symbols and the description thereof will not be repeated unless otherwise specified. In addition, the area where dots are displayed in each figure indicates a sealed portion. In the embodiment of the present invention, “sealing” means adhering two films to each other to hermetically seal between the two films.

(Embodiment 1)
The configuration of the package 1 according to the first embodiment of the present invention will be described with reference to FIGS. 1 and 2. 1 and 2 show a state before the contents 10 (see FIG. 3) are stored in the package 1. The package 1 according to the present embodiment has a first side surface film 11, a second side surface film 12, and a bottom film 13. Each of the first side surface film 11 and the second side surface film 12 may have, for example, a rectangular shape when viewed from a direction in which the first side surface film 11 and the second side surface film 12 overlap each other. The second side surface film 12 is arranged so as to face the first side surface film 11. Moreover, each of the 1st side surface film 11 and the 2nd side surface film 12 may have the same dimension.

  The bottom film 13 is arranged between the first side surface film 11 and the second side surface film 12. The bottom film 13 is inserted between the first side film 11 and the second side film 12 from the lower end of the package 1 in the vertical direction (vertical direction) HD of the package 1. The bottom film 13 is inserted between the first side film 11 and the second side film 12 from the fold line in a folded state. The package 1 is configured to be self-supporting with the bottom film 13 as the bottom. That is, the package 1 is a standing pouch.

  The package 1 includes a peripheral edge portion 20, a storage portion 30, and a shape retaining member 40. The peripheral edge portion 20 is disposed on the peripheral edges of the first side surface film 11 and the second side surface film 12. The peripheral edge portion 20 includes a peripheral edge seal portion 21, a bottom seal portion 22, a planned sealing portion 23, and a notch CU. The peripheral edge seal part 21 seals a part of the peripheral edges of the first side surface film 11 and the second side surface film 12. In the present embodiment, the peripheral edge seal portions 21 are arranged at both side ends of the package 1 in the width direction (horizontal direction) WD of the package 1. The vertical direction (vertical direction) HD of the package 1 and the width direction (horizontal direction) WD of the package 1 intersect with each other.

  The bottom seal part 22 seals each of the first side film 11 and the second side film 12 and the bottom film 13. The bottom seal portion 22 is arranged at the lower end of the package 1 in the vertical direction HD of the package 1. The pre-sealing portion 23 communicates the outside of the package 1 with the storage portion 30 in a state where the other peripheral portions of the first side film 11 and the second side film 12 are not sealed. That is, in the state before the contents 10 are stored in the package 1, some of the peripheral edges of the first side film 11 and the second side film 12 are sealed, and the other parts are not sealed.

  The pre-sealing portion 23 is for passing the content 10 when the content 10 is stored in the storage section 30 from the outside of the package 1. The planned sealing portion 23 is not sealed before the contents 10 are stored in the storage portion 30. The planned sealing portion 23 is sealed after the contents 10 are stored in the storage portion 30 from the outside of the package 1 through the sealing target portion 23. In the present embodiment, the planned sealing portion 23 is provided at the upper end of the packaging body 1 in the vertical direction HD of the packaging body 1. Note that the position of the planned sealing portion 23 is not limited to the upper end of the package 1. The sealing target portion 23 may be provided, for example, at a side end of the package 1 in the width direction WD of the package 1.

  In the state before the contents 10 are stored in the storage portion 30, the peripheral edge portion 20 of the packaging body 1 is a sealed area, a peripheral seal portion 21 and a bottom seal portion 22, and an unsealed area is a seal. It has an appointment part 23. That is, in the state before the contents 10 are stored in the storage unit 30, the peripheral edge portion 20 of the package 1 is sealed except for the planned sealing portion 23. The peripheral portion 20 of the package 1 may be specifically sealed by, for example, heat welding.

  Each of the 1st side surface film 11, the 2nd side surface film 12, and the bottom film 13 may be comprised by the laminated body. Specifically, each of the first side surface film 11, the second side surface film 12, and the bottom film 13 is, for example, linear low density polyethylene (LLDPE), nylon (NY), transparent vapor deposition polyethylene terephthalate (PET) from the side to be sealed. It may have a three-layer structure in which the respective layers of 1) are stacked. Further, the thickness of each of these layers may be, for example, linear low density polyethylene (LLDPE) of 80 μm, nylon (NY) of 15 μm, and transparent vapor-deposited polyethylene terephthalate (PET) of 12 μm.

  The storage unit 30 is configured to store the contents 10. The content 10 may be, for example, food such as hamburger. The storage section 30 is surrounded by the peripheral edge section 20. Specifically, in the direction from the first side surface film 11 to the second side surface film 12, when the package 1 is viewed from the first side surface film 11 side, the storage section 30 is surrounded by the peripheral edge section 20. That is, in a plan view (front view), the storage section 30 is surrounded by the peripheral edge section 20.

  The package 1 has a notch CU as an opening mechanism. The notch CU is configured to penetrate both the first side surface film 11 and the second side surface film 12. The notch CU is provided on at least one of the one end 1a and the other end 1b of the package 1 in the width direction WD. In the present embodiment, the notches CU are provided at both ends of the package 1 in the width direction WD. That is, the notches CU are provided on the one end 1a and the other end 1b of the package 1 in the width direction WD, respectively.

  The notch CU is configured to be recessed toward the opposite end at each of both ends in the width direction WD of the package 1. That is, the notch CU is configured to be recessed toward the inside of the package 1. The notch CU is configured to be sharpened toward the tip TP of the notch CU located on the innermost side of the package 1.

  The position of the notch CU is defined by the tip TP of the notch CU. That is, the position of the notch CU in the vertical direction HD of the package 1 is the position of the tip TP of the notch CU. Each of the notches CU provided in the one end 1a and the other end 1b in the width direction WD of the package 1 may be arranged at the same height position in the up-and-down direction HD of the package 1.

  The notch CU is arranged between the ceiling portion UP of the peripheral edge portion 20 and the shape retaining member 40 in the up-and-down direction HD of the package 1. The ceiling portion UP of the peripheral edge portion 20 is arranged so as to face the bottom seal portion 22 in the vertical direction HD of the packaging body 1. In the present embodiment, the planned sealing portion 23 is arranged on the ceiling portion UP of the peripheral edge portion 20. Therefore, the notch CU is arranged between the pre-sealing portion 23 and the shape retaining member 40 in the vertical direction HD of the package 1.

  The notch CU is arranged closer to the shape holding member 40 than the middle between the ceiling portion UP of the peripheral edge portion 20 and the shape holding member 40 in the vertical direction HD of the package 1. That is, the notch CU is arranged closer to the shape holding member 40 than the middle between the ceiling UP of the peripheral edge portion 20 and the shape holding member 40 in the vertical direction HD of the package 1. Therefore, the dimension L2 from the notch CU to the shape retaining member 40 is smaller than the dimension L1 from the ceiling portion UP of the peripheral edge portion 20 to the notch CU in the up-and-down direction HD of the package 1.

  With the planned sealing portion 23 sealed, the first side film 11 and the second side film 12 are cut from the notch CU in the width direction WD of the package 1 to open the package 1. The opening is arranged at the upper end of the package 1 after the first side film 11 and the second side film 12 are cut from the notch CU in the width direction WD of the package 1. That is, the opening is arranged between the one end E1 and the other end E2 of the packaging body 1 in the vertical direction HD of the packaging body 1.

  The first side surface film 11 and the second side surface film 12 are cut from the notch CU in the width direction WD of the packaging body 1 by cutting the first side surface film 11 and the second side surface film 12 so that the outside of the packaging body 1 and the storage portion. It includes a planned opening portion 50 for opening so as to communicate with 30. In the width direction WD of the package 1, notches CU are provided at both side ends of the package 1 so as to sandwich the planned opening portion 50. The planned opening portion 50 is set at the same position as the tip TP of the notch CU in the vertical direction HD of the package 1.

  The planned opening portion 50 is for taking out the contents after the planned opening portion 50 is opened. In the state before the contents 10 are stored in the package 1, the planned opening portion 50 is not opened. The planned opening portion 50 is arranged between the shape retaining member 40 and the planned sealing portion 23 in the vertical direction HD of the package 1. The planned opening portion 50 is arranged between the side ends on both sides of the package 1 in the width direction WD of the package 1.

  The shape retaining member 40 is arranged between the first side surface film 11 and the second side surface film 12. The shape retaining member 40 is exposed with respect to the storage section 30. That is, the shape retaining member 40 is not covered with the laminate film on the storage section 30 side. The shape retaining member 40 is attached to at least one of the first side surface film 11 and the second side surface film 12. In the present embodiment, the shape retaining member 40 is arranged on the first side surface film 11. The shape maintaining member 40 is formed in a sheet shape. The shape retaining member 40 is formed in a strip shape. The width of the shape retaining member 40 in the vertical direction HD of the package 1 may be constant. The width of the shape retaining member 40 in the vertical direction HD of the package 1 is, for example, 10 mm.

  The shape retaining member 40 is arranged between the notch CU and the bottom seal portion 22 in the up-and-down direction HD where the ceiling portion UP of the peripheral edge portion 20 and the bottom seal portion 22 face each other. The shape retaining member 40 is arranged between the planned opening portion 50 and the bottom seal portion 22. In this state, the shape retaining member 40 is not curved. The shape retaining member 40 can retain the shape in a curved state so as to project in the direction from the second side surface film 12 toward the first side surface film 11.

  The dimension from the notch CU to the shape-retaining member 40 in the vertical direction HD of the package 1 is preferably equal to or less than the dimension of the width of the shape-retaining member 40 multiplied by 1.5. In the vertical direction HD of the package 1, the dimension from the notch CU to the shape retaining member 40 is the dimension from the tip TP of the notch CU to the upper end of the shape retaining member 40.

  The dimension from the notch CU to the shape retaining member 40 in the vertical direction HD of the package 1 is preferably 15 mm or less. In the up-and-down direction HD of the package 1, the shape retaining member 40 is preferably arranged at a position of 1 mm or more and 15 mm or less toward the bottom seal portion 22 than the planned opening portion 50.

  The shape retaining member 40 is preferably arranged in the center of the package 1 in the width direction WD. Further, it is preferable that the shape retaining members 40 are continuously arranged over the peripheral edge seal portions 21 arranged at both ends of the package 1 in the width direction WD. In the present embodiment, the shape retaining members 40 are continuously arranged over both ends of the package 1 in the width direction WD.

  With reference to FIGS. 3 and 4, the shape-retaining member 40 includes a super-stretched sheet SS, a first sheet S1, and a second sheet S2. The super-stretched sheet SS, the first sheet S1, and the second sheet S2 are laminated on each other. The super-stretched sheet SS is sandwiched between the first sheet S1 and the second sheet S2. The super-stretched sheet SS extends in the width direction WD of the package 1.

  The super-stretched sheet SS is one in which the molecules are uniaxially oriented. The molecular orientation direction of the super-stretched sheet SS is along the width direction WD of the package 1. The super-stretched sheet SS is easy to bend around the bending line along the molecular orientation direction, difficult to bend around the bending line intersecting the molecular orientation direction, and in the bent state. It is configured to be able to retain its shape. Therefore, at least one of the first side surface film 11 and the second side surface film 12 to which the super stretched sheet SS is attached has a dead hold property. The dead hold property is a property of maintaining a bent state.

  The first sheet S1 and the second sheet S2 are configured to sandwich the super-stretched sheet SS in the direction in which the first side surface film 11 and the second side surface film 12 face each other. Each of the first sheet S1 and the second sheet S2 extends in the width direction WD that intersects the top-bottom direction HD of the package 1. Each of the first sheet S1 and the second sheet S2 may have the same width as the super-stretched sheet SS in the vertical direction HD of the package 1.

  The first sheet S1 is attached to the super-stretched sheet SS and either the first side surface film 11 or the second side surface film 12. The melting point of the first sheet S1 is lower than the melting point of the super-stretched sheet SS. The second sheet S2 is attached to the super-stretched sheet SS on the side opposite to the first sheet S1. The melting point of the second sheet S2 is lower than the melting point of the super stretched sheet SS.

  With reference to FIG. 1 and FIG. 5, in the present embodiment, each of super-stretched sheet SS and first sheet S1 and second sheet S2 are arranged at both ends in the width direction WD of package 1. At both ends of the package 1 in the width direction WD, the first sheet S1 and the second sheet S2 are sandwiched between the first side film 11 and the second side film 12.

  At both ends in the width direction WD of the package 1, the first sheet S1 is welded to one of the first side film 11 and the second side film 12, and the second sheet S2 is the first side film 11 and the second side film 11. It is welded to either the other side film 12. Specifically, the first sheet S1 is welded to the first side surface film 11 and the second sheet S2 is welded to the second side surface film 12 at both ends in the width direction WD of the package 1. The second sheet S2 is not welded to either the first side surface film 11 or the second side surface film 12 except for both ends in the width direction WD of the package 1.

  Since the melting point of each of the first sheet S1 and the second sheet S2 is lower than the melting point of the super-stretched sheet SS, each of the first sheet S1 and the second sheet S2 has a first side surface film 11 and It becomes easy to weld to the second side surface film 12.

  When the shape-retaining member 40 is composed of only the super-stretched sheet SS, when the first side surface film 11 and the second side surface film 12 are welded at both ends in the width direction WD of the package 1. A gap GP between the first side surface film 11 and the second side surface film 12 is formed above and below the super-stretched sheet SS.

  On the other hand, in the present embodiment, since the shape retaining member 40 has the first sheet S1 and the second sheet S2 that sandwich the super-stretched sheet SS, the first sheet S1 and the second sheet S2 are welded at the time of welding. By melting, the gap GP formed between the first side surface film 11 and the second side surface film 12 is filled above and below the super-stretched sheet SS.

  Therefore, in the present embodiment, as compared with the case where the shape maintaining member 40 is composed of only the super-stretched sheet SS, the shape maintaining member 40 is above and below the shape maintaining member 40 between the first side film 11 and the second side film during welding. The formed gap GP becomes smaller. That is, the filling of the first sheet S1 and the second sheet S2 is improved.

  Further, in the present embodiment, since the first sheet S1 and the second sheet S2 are arranged on both sides of the super-stretched sheet SS, only one of the first sheet S1 and the second sheet S2 is the super-stretched sheet SS. The gap GP formed between the first side face film 11 and the second side face film at the top and bottom of the shape retaining member 40 during welding is smaller than in the case where the gap GP is arranged on one side.

  In the present embodiment, the super-stretched sheet SS is a sheet made of high density polyethylene (HDPE). Further, each of the first sheet S1 and the second sheet S2 is a sheet made of linear low density polyethylene (LLDPE). That is, the shape retaining member 40 has a three-layer structure in which layers of linear low density polyethylene (LLDPE), high density polyethylene (HDPE), and linear low density polyethylene (LLDPE) are stacked from the sealed side. . Further, the thickness thereof may be, for example, 200 μm or more and 600 μm or less for high density polyethylene (HDPE) and 20 μm or more and 60 μm or less for linear low density polyethylene (LLDPE). More specifically, these thicknesses may be, for example, 400 μm for high density polyethylene (HDPE) and 30 μm for linear low density polyethylene (LLDPE).

  Next, with reference to FIG. 6, a configuration of the package 1 in a state where the contents 10 are stored in the storage unit 30 will be described. In this state, the package 1 further includes the contents 10 stored in the storage section 30. In the state where the contents 10 are stored in the storage unit 30, the other portions of the peripheral edges of the first side surface film 11 and the second side surface film 12 are sealed in the sealing target portion 23. In the sealing target portion 23, specifically, the first side surface film 11 and the second side surface film 12 may be sealed to each other by heat welding. As a result, all the peripheral edges 20 are sealed. Therefore, the storage unit 30 is hermetically sealed when the contents 10 are stored in the storage unit 30.

  Next, with reference to FIG. 6 and FIG. 7, the manner in which the package 1 is opened at the planned opening portion 50 will be described. As shown by an arrow X in FIG. 6, the user of the packaging body 1 grasps the other end 1b of the packaging body 1 with fingers and folds it back toward the one end 1a, so that the notch CU moves in the width direction WD of the packaging body 1. The first side film 11 and the second side film 12 are torn. Thereby, as shown in FIG. 7, the first side surface film 11 and the second side surface film 12 are cut from the notch CU in the width direction WD of the package 1. At this time, since the first side face film 11 is reinforced by the shape retaining member 40, the first side face film 11 and the second side face film 12 are cut along the reinforced portion. That is, the cut portion of the package 1 is guided by the shape maintaining member 40. Therefore, the first side surface film 11 and the second side surface film 12 are linearly cut along the shape retaining member 40 at the planned opening portion 50. In this way, the opening is linearly formed at the planned opening portion 50.

  Next, with reference to FIG. 7 and FIG. 8, the configuration of the package 1 in the state where the package 1 is opened at the planned opening portion 50 will be described. In the state where the package 1 is opened at the planned opening portion 50, the first side film 11 and the second side film 12 on the upper end side of the package 1 in the up-and-down direction HD are cut off. In this state, as in the state shown in FIG. 6, the package 1 further includes the contents 10 stored in the storage section 30. As shown in FIG. 7, when the package 1 is cut from the notch CU, an opening is provided so as to connect the outside of the package 1 and the storage unit 30. The planned opening portion 50 is opened so that the outside of the package 1 and the storage portion 30 communicate with each other.

  Subsequently, as shown in FIG. 8, after the packaging body 1 is opened at the planned opening portion 50, the user of the packaging body 1 causes the shape-retaining member 40 to move to the first position as indicated by an arrow A in FIG. The side surface film 12 is deformed into a curved state so as to project to the opposite side. As a result, the first side surface film 11 to which the shape retaining member 40 is attached is deformed into a curved state so as to project to the side opposite to the second side surface film 12 according to the shape of the shape retaining member 40. At this time, as shown by the arrow B in FIG. 8, at the upper end of the packaging body 1 in the up-down direction HD, the peripheral edge seal portion 21 is deformed so that both ends in the width direction WD of the packaging body 1 come close to each other. As a result, as shown by the arrow C in FIG. 8, the second side surface film 12 forming the opening bends to the opposite side to the direction in which the first side surface film 11 bends. In this way the opening is widened. Then, the shape holding member 40 holds the shape in a state where the opening is expanded, so that the shape of the opening provided at the upper end of the packaging body 1 in the vertical direction HD is held. In this way, the state in which the opening is expanded is maintained.

Next, the function and effect of the package according to the present embodiment will be described.
According to the package 1 according to the present embodiment, the shape retaining member 40 is arranged between the notch CU and the bottom seal portion 22 in the vertical direction HD of the package 1 and in the width direction of the package 1. It includes a super-stretched sheet SS extending in WD. The molecular orientation direction of the super-stretched sheet SS is along the width direction WD of the package 1. The super-stretched sheet SS is easy to bend around a fold line along the molecular orientation direction, difficult to bend around a fold line intersecting the molecular orientation direction, and in a bent state. It is possible to retain the shape. Therefore, the super-stretched sheet SS can hold the shape in a state in which the first side surface film 11 and the second side surface film 12 are bent in the facing direction. Therefore, it is possible to maintain the shape in a state where the first side surface film 11 and the second side surface film 12 are deformed according to the shape of the super-stretched sheet SS. In this way, when the package 1 is opened at the planned opening portion 50, the shape holding member 40 can hold the state in which the opening is expanded. Therefore, it becomes easy to take out the contents 10 from the opening. Further, it becomes possible to easily take in and out the tableware in and from the storage section 30.

  Further, the notch CU is arranged closer to the shape holding member 40 than the middle between the ceiling portion UP of the peripheral edge portion 20 and the shape holding member 40 in the vertical direction HD of the package 1. When the package 1 is cut from the notch CU, the cut portion of the package 1 is guided by the shape retaining member 40, so that the opening can be easily formed in a straight line. Therefore, when the contents 10 are taken out from the opening, it is possible to prevent the contents 10 from adhering to the opening and the dishes from coming into contact with the opening. In addition, since the opening is formed in a straight line, the cosmetic appearance can be improved.

  According to the package 1 according to the present embodiment, the dimension from the notch CU to the shape retaining member 40 in the up-and-down direction HD of the package 1 is equal to or less than the dimension of the shape retaining member 40 multiplied by 1.5. Therefore, when the package 1 is cut from the notch CU, the cut portion of the package 1 is easily guided by the shape retaining member 40. This makes it easier to form the opening in a straight line. Moreover, the opening of the package 1 can be suppressed from being wound inward.

  According to the package 1 according to the present embodiment, the dimension from the notch CU to the shape retaining member 40 in the vertical direction HD of the package 1 is 15 mm or less. Therefore, when the package 1 is cut from the notch CU, the cut portion of the package 1 is easily guided by the shape retaining member 40. This makes it easier to form the opening in a straight line. Moreover, the opening of the package 1 can be suppressed from being wound inward.

  In addition, the melting point of the first sheet S1 attached to the super-stretched sheet SS and either the first side surface film 11 or the second side surface film 12 is lower than the melting point of the super-stretched sheet SS. Therefore, welding the first sheet S1 to either the first side surface film 11 or the second side surface film 12 is easier than welding the super-stretched sheet SS. Therefore, the productivity of the package 1 can be improved.

  The shape-retaining member 40 includes a first sheet and a second sheet attached to the super-stretched sheet on the side opposite to the first sheet. Therefore, the shape retaining member 40 can be attached without considering the front and back of the shape retaining member 40. Therefore, the productivity of the package 1 can be improved.

  Further, the super-stretched sheet SS is made of high density polyethylene, and each of the first sheet S1 and the second sheet S2 is made of linear low density polyethylene. Therefore, the first sheet S1 and the second sheet S2 can be directly bonded to the super-stretched sheet SS by thermal lamination. Therefore, the productivity of the package 1 can be improved. Further, since the first sheet S1 and the second sheet S2 are not adhered to the super-stretched sheet SS with the adhesive, it is possible to prevent the adhesive from leaching into the package 1.

  Further, by sandwiching the high density polyethylene between the linear low density polyethylene, it is possible to suppress the generation of the high density polyethylene residue. Therefore, it is possible to prevent the dust from mixing into the content 10. Therefore, hygiene can be improved.

  Further, the shape retaining members 40 are continuously arranged over both ends of the package 1 in the width direction WD. Therefore, the shape maintaining member 40 attached to the first side surface film 11 is curved to the side opposite to the second side surface film 12, and the rigidity of the shape maintaining member 40 causes the second side surface film 12 to move. And bend to the other side. This makes it easy to open the package 1. Further, by curving the center of the package 1 in the width direction WD, it becomes easy to open the package 1 over both ends of the package 1 in the width direction WD. Further, by forming the shape retaining member 40 continuously over both ends of the package 1 in the width direction WD, the shape retaining member 40 can be easily manufactured.

  Further, since the shape retaining member 40 is continuously arranged over both ends of the package 1 in the width direction WD, the cut portion of the package 1 is guided by the shape retaining member 40 over both ends of the package 1 in the width direction WD. It Therefore, it becomes easy to form the opening linearly over both ends of the package 1 in the width direction WD.

  At both ends of the package 1 in the width direction WD, the first sheet S1 is welded to the first side surface film 11 and the second sheet S2 is welded to the second side surface film 12. Each of the first sheet S1 and the second sheet S2 is made of linear low density polyethylene, and the super-stretched sheet SS is made of high density polyethylene. Therefore, the melting points of the first sheet S1 and the second sheet S2 are lower than the melting point of the super-stretched sheet SS. Therefore, each of the first sheet S1 and the second sheet S2 becomes easier to be welded to the first side film 11 and the second side film 12 as compared with the super-stretched sheet SS. Further, the first sheet S1 and the second sheet S2 are melted at the time of welding to fill the gap GP formed between the first side surface film 11 and the second side surface film 12 above and below the super-stretched sheet SS. Therefore, the gap GP formed between the first side surface film 11 and the second side surface film above and below the shape maintaining member 40 during welding is smaller than that in the case where the shape maintaining member 40 is composed of only the super-stretched sheet SS. Can be made smaller. Therefore, it is possible to suppress leakage of air, water vapor, the content 10, etc. from the gap GP.

  According to the package 1 according to the present embodiment, in the state where the content 10 is stored in the storage section 30, the first planned side surface film 11 and the second side surface film 12 have other peripheral edges in the planned sealing section 23. The part is sealed. Therefore, in the state where the contents 10 are stored in the storage section 30, the storage section 30 can be sealed.

  According to the package 1 according to the present embodiment, an opening is provided so that the package 1 is cut from the notch CU, so that the outside of the package 1 and the storage unit 30 communicate with each other. Therefore, in the state in which the opening is provided, the shape holding member 40 can hold the expanded state.

  Next, with reference to FIG. 9, a modification of the package 1 according to the first embodiment of the present invention will be described. In the above description, the notches CU are provided at both ends of the package 1 in the width direction WD, but the notches CU may be provided at only one of the ends of the package 1 in the width direction WD. In the modified example of the package 1 according to Embodiment 1 of the present invention, the notch CU is not provided at one end 1a of both ends of the width direction WD of the package 1 but only at the other end 1b. ing.

  According to the modified example of the package 1 according to the first embodiment of the present invention, when the package 1 is cut from the notch CU provided at the other end 1b of the package 1 in the width direction WD, the package 1 Since the cut portion of is guided by the shape maintaining member 40, it becomes easy to form the opening in a straight line.

(Embodiment 2)
The configuration of the package 1 according to the second embodiment of the present invention will be described with reference to FIG. 10. FIG. 10 is a diagram corresponding to FIG. 2 of the first embodiment. In the package 1 according to the second embodiment, the shape retaining member 40 is attached to both the first side surface film 11 and the second side surface film 12. The shape retaining member 40 according to the present embodiment includes a first member 41 and a second member 42. Each of the first member 41 and the second member 42 has the same configuration as the shape retaining member 40 of the first embodiment. The first member 41 is attached to the first side film 11. The second member 42 is attached to the second side film 12. The first member 41 is arranged so as to face the second member 42. The first member 41 may be arranged at the same position as the second member 42 in the vertical direction HD of the package 1.

  Next, with reference to FIG. 11, the configuration of the package 1 in the state where the contents 10 are stored in the storage unit 30 will be described. In this state, the package 1 further includes the contents 10 stored in the storage section 30. When the contents 10 are stored in the storage portion 30, the storage portion 30 is hermetically sealed.

  Next, with reference to FIG. 11 and FIG. 12, a state in which the package 1 is opened at the planned opening portion 50 will be described. As shown by an arrow X in FIG. 11, the user of the packaging body 1 grasps the other end 1b of the packaging body 1 with fingers and folds it back toward the one end 1a, so that the notch CU moves in the width direction WD of the packaging body 1. The first side film 11 and the second side film 12 are torn. As a result, the first side surface film 11 and the second side surface film 12 are cut from the notch CU in the width direction WD of the package 1. At this time, since the first side surface film 11 is reinforced by the first member 41 and the second side surface film 12 is reinforced by the second member 42, the first side surface film 11 and the second side surface are reinforced along the reinforced portion. The film 12 is cut. That is, the cut portion of the package 1 is guided by the first member 41 and the second member 42. Therefore, the first side surface film 11 and the second side surface film 12 are linearly cut along the first member 41 and the second member 42 at the planned opening portion 50. In this way, the opening is linearly formed at the planned opening portion 50.

  Next, with reference to FIG. 12 and FIG. 13, the configuration of the packaging body 1 in the state where the packaging body 1 is opened at the planned opening portion 50 will be described. In this state, as in the state shown in FIG. 11, the package 1 further includes the contents 10 stored in the storage section 30. As shown in FIG. 12, when the package 1 is cut from the notch CU, an opening is provided so as to connect the outside of the package 1 and the storage unit 30. The planned opening portion 50 is opened so that the outside of the package 1 and the storage portion 30 communicate with each other.

  Subsequently, as shown in FIG. 13, after the packaging body 1 is opened at the planned opening portion 50, the user of the packaging body 1 causes the first member 41 to move to the first position as indicated by an arrow A in FIG. The side surface film 12 is deformed into a curved state so as to project to the opposite side. As a result, the first side surface film 11 to which the first member 41 is attached is deformed into a curved state so as to project to the side opposite to the second side surface film 12 according to the shape of the first member 41.

  Further, as indicated by an arrow C in FIG. 13, the user of the package 1 deforms the second member 42 into a curved state so as to project to the side opposite to the first side film 11. As a result, the second side surface film 12 to which the second member 42 is attached is deformed into a curved state so as to project to the side opposite to the first side surface film 11 according to the shape of the second member 42. At this time, as shown by the arrow B in FIG. 13, at the upper end of the packaging body 1 in the up-down direction HD, the peripheral edge seal portion 21 is deformed so that both ends in the width direction WD of the packaging body 1 come close to each other. In this way the opening is widened. Then, the shape holding member 40 holds the shape in a state where the opening is expanded, so that the shape of the opening provided at the upper end of the packaging body 1 in the vertical direction HD is held. In this way, the state in which the opening is expanded is maintained.

  According to the package 1 according to the present embodiment, the shape retaining member 40 includes the first member 41 to which the first side film 11 is attached and the second member 42 to which the second side film 12 is attached. . Therefore, the first side surface film 11 can be held in a deformed state according to the shape of the first member 41, and the second side surface film 12 can be held in a deformed state according to the shape of the second member 42. be able to. Therefore, when the package 1 is opened at the planned opening portion 50, the state in which the opening is expanded by the first member 41 and the second member 42 can be maintained.

  Further, when the first side surface film 11 and the second side surface film 12 are cut from the notch CU, the cut portion of the package 1 is guided by the first member 41 and the second member 42, so that the first side surface film 11 It is easy to form the opening in a straight line on both the second side film 12 and the second side film 12.

(Embodiment 3)
The configuration of the package 1 according to the third embodiment of the present invention will be described with reference to FIGS. 14 and 15. In the package 1 according to the third embodiment, the shape retaining member 40 is attached to both the first side film 11 and the second side film 12 at different height positions.

  The shape retaining member 40 according to the present embodiment includes a first member 41 and a second member 42. Each of the first member 41 and the second member 42 has the same configuration as the shape retaining member 40 of the first embodiment. The first member 41 is attached to the first side film 11. The second member 42 is attached to the second side film 12. In the vertical direction HD of the package 1, the first member 41 is displaced from the second member 42. That is, the first member 41 is arranged so as not to overlap the second member 42 in the vertical direction HD of the package 1. In other words, the first member 41 is arranged so as not to face the second member 42. In the present embodiment, the first member 41 is arranged closer to the notch CU than the second member 42 in the vertical direction HD of the package 1.

  According to the package 1 according to the present embodiment, the shape retaining member 40 includes the first member 41 to which the first side film 11 is attached and the second member 42 to which the second side film 12 is attached. . Therefore, the first side surface film 11 can be held in a deformed state according to the shape of the first member 41, and the second side surface film 12 can be held in a deformed state according to the shape of the second member 42. be able to. Therefore, when the package 1 is opened at the planned opening portion 50, the state in which the opening is expanded by the first member 41 and the second member 42 can be maintained.

  Further, when the first side surface film 11 and the second side surface film 12 are cut from the notch CU, the cut portion of the package 1 is guided by the first member 41, so that it is easy to form the opening linearly. Becomes

  Further, the first member 41 is displaced from the second member 42 in the vertical direction HD of the package 1. Therefore, in the vertical direction HD of the package 1, the thickness of the package 1 is smaller than that in the case where the first member 41 is arranged at the same height position as the second member 42. It becomes easy to seal. Therefore, the manufacture of the package 1 is facilitated.

(Embodiment 4)
The configuration of the package 1 according to the fourth embodiment of the present invention will be described with reference to FIG. The package 1 according to the present embodiment mainly differs from the package 1 according to the first embodiment in the outer shape of the package 1. Specifically, the shapes of both ends of the package 1 in the width direction WD are mainly different.

  The package 1 is configured such that the width in the width direction WD of the package 1 increases from the lower end to the upper end in the vertical direction HD of the package 1. That is, the package 1 has a taper shape in which the dimension in the width direction WD of the package 1 increases from the lower end to the upper end in the vertical direction HD of the package 1. The storage portion 30 is also configured such that the width in the width direction WD of the package 1 increases from the lower end to the upper end in the vertical direction HD of the package 1. Therefore, the cross-sectional area of the storage unit 30 in the cross section in the width direction WD of the package 1 increases from the lower end toward the opening in the vertical direction HD of the package 1.

  According to the package 1 according to the present embodiment, the package 1 has a tapered shape in which the dimension in the width direction WD of the package 1 increases from the lower end to the upper end in the up-and-down direction HD of the package 1. Therefore, it is more stable when the opening is expanded.

  The first to fourth embodiments described above can be combined as appropriate.

Hereinafter, examples of the present invention will be described in comparison with comparative examples.
Comparative sensory evaluation was carried out using the packages of Examples 1 and 2 and Comparative Examples 1 to 3. Examples 1 and 2 are examples of the present invention. Comparative Examples 1 to 3 are comparative examples with respect to the examples of the present invention. Each of the packages of Examples 1 to 2 and Comparative Examples 1 to 3 is a standing pouch having a first side surface film, a second side surface film, and a bottom film. The contents of each of Examples 1-2 and Comparative Examples 1-3 are hamburgers. In the packages of Examples 1 and 2 and Comparative Examples 1 to 3, comparative sensory evaluation was performed in a state in which the package was opened so that the outside and the storage section were communicated with each other.

  Each of the packages of Examples 1 and 2 and Comparative Examples 1 to 3 has a tapered shape in which the dimension in the width direction of the package increases from the lower end to the upper end in the vertical direction. The contents are stored in the storage portions of the packages of Examples 1 and 2 and Comparative Examples 1 to 3. Each of the packaging bodies of Examples 1 and 2 and Comparative Examples 1 to 3 has an overall length in the vertical direction of 155 mm, a total width in the width direction at the upper end of the packaging body of 150 mm, and a width direction at the lower end of the packaging body in the width direction. The total width is 130 mm. The dimension from the lower end of the package to the notch in the vertical direction of the package is 110 mm. The dimension from the lower end of the package to the upper end of the shape retaining member in the vertical direction of the package is 100 mm. The width of the shape-retaining member in the vertical direction of the package is 10 mm.

  Each of the first side film, the second side film and the bottom film is laminated from the side to be sealed from the side to which each layer of linear low density polyethylene (LLDPE), nylon (NY) and transparent vapor deposition polyethylene terephthalate (PET) is sealed. Has a three-layer structure. The thickness of each of these layers is 80 μm for linear low density polyethylene (LLDPE), 15 μm for nylon (NY), and 12 μm for transparent vapor-deposited polyethylene terephthalate (PET).

  Each of the first sheet, the super-stretched sheet, and the second sheet of the shape-retaining member has layers of linear low density polyethylene (LLDPE), high density polyethylene (HDPE), and linear low density polyethylene (LLDPE) from the sealed side. It has a stacked three-layer structure. The thickness of these is, for example, 400 μm for high density polyethylene (HDPE) and 30 μm for linear low density polyethylene (LLDPE).

  In each of the packages of Examples 1 and 2 and Comparative Examples 1 and 2, the shape retaining member is attached to one of the first side film and the second side film. In the package of Comparative Example 3, the shape retaining member is not attached to either the first side film or the second side film. The dimension from the notch to the shape-retaining member in the top-bottom direction of the package is 10 mm in Example 1, 15 mm in Example 2, 25 mm in Comparative Example 1, and 35 mm in Comparative Example 2.

  The results of comparative sensory evaluation are shown in Table 1. As shown in Table 1, in the comparative sensory evaluation, each of openability, openability, and comprehensive evaluation was evaluated. The openability is the ease of straight cutting when the package is cut from the notch. The openness is the ease of opening the package. The comprehensive evaluation is an average value of the opening property and the opening property. These evaluations were made on the basis of numbers 1 to 5 in five levels. Specifically, the worst was evaluated as 1, the best was evaluated as 5, and the middle was evaluated as 3. The number of evaluators was 5. The numerical value of evaluation was the average value of 5 persons.

  As a result of the comparative sensory evaluation, each of Examples 1 and 2 was evaluated higher in openability and openability than Comparative Examples 1 to 3. Therefore, it was found that each of Examples 1 and 2 was easier to linearly cut the package from the notch and was easier to open than each of Comparative Examples 1 to 3. In addition, each of Examples 1-2 has higher overall evaluation than Comparative Examples 1-3.

  It was found that when the dimension of the package from the notch to the shape-retaining member in the up-and-down direction is 1 time or more and 1.5 or less of the shape-retaining member, the unsealing property is improved. Therefore, it was found that when the dimension from the notch to the shape-retaining member in the vertical direction of the package is equal to or smaller than the dimension of the shape-retaining member multiplied by 1.5, the package is easily cut straight from the notch.

  In addition, it was found that the dimension of the notch to the shape-retaining member in the up-and-down direction of the package is 1 times or more the dimension of the shape-retaining member and 1.5 or less, whereby the opening property is improved. Therefore, it was found that when the dimension of the package from the notch to the shape-retaining member in the top-bottom direction is equal to or less than the dimension of the shape-retaining member multiplied by 1.5, the opening of the package is difficult to be wound inside. It was found that this improves the opening property.

  It was found that if the dimension from the notch to the shape-retaining member in the vertical direction of the package is 10 mm or more and 15 mm or less, the unsealing property is improved. It was found that if the dimension from the notch to the shape-retaining member in the top-bottom direction of the package is 15 mm or less, it is easy to cut the package linearly from the notch.

  Further, it was found that the opening property is improved when the dimension from the notch to the shape retaining member in the vertical direction of the package is 10 mm or more and 15 mm or less. It was found that when the dimension from the notch to the shape retaining member in the top-bottom direction of the package is 15 mm or less, the opening of the package is difficult to be wound inside. It was found that this improves the opening property.

  The embodiments and examples disclosed this time are to be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description but by the claims, and is intended to include meanings equivalent to the claims and all modifications within the scope.

  1 package, 10 contents, 11 1st side film, 12 2nd side film, 13 bottom film, 20 peripheral part, 21 peripheral seal part, 22 bottom seal part, 23 scheduled seal part, 30 storage part, 40 shape retention Member, 41 1st member, 42 2nd member, 50 Planned opening part, CU notch, HD up-down direction, S1 1st sheet, S2 2nd sheet, SS super-stretched sheet, UP ceiling part, WD width direction.

Claims (5)

A package comprising a first side film, a second side film facing the first side film, and a bottom film arranged between the first side film and the second side film,
Peripheral portions arranged on the peripheral edges of the first side film and the second side film,
A storage portion surrounded by the peripheral portion,
A shape retaining member that is disposed between the first side film and the second side film, and is attached to at least one of the first side film and the second side film,
The peripheral portion includes a peripheral seal portion, a bottom seal portion, a planned seal portion, and a notch,
The peripheral edge seal portion seals a part of the peripheral edges of the first side surface film and the second side surface film,
The bottom seal portion seals each of the first side film and the second side film and the bottom film,
The predetermined seal portion communicates the outside of the package with the storage portion in a state where the other peripheral portions of the first side film and the second side film are not sealed.
The notch is provided on at least one of the one end and the other end in the width direction of the package,
The shape-retaining member is disposed between the notch and the bottom seal portion in a vertical direction in which the ceiling portion of the peripheral edge portion and the bottom seal portion face each other, and extends in the width direction. Including seats,
The molecular orientation direction of the super-stretched sheet is along the width direction of the package,
The said notch is a package which is arrange | positioned closer to the said shape holding member rather than the intermediate | middle between the said ceiling part of the said peripheral part and the said shape holding member in the said up-down direction.   The package according to claim 1, wherein a dimension from the notch to the shape retaining member in the vertical direction is equal to or less than a dimension obtained by multiplying a width of the shape retaining member by 1.5.   The package according to claim 1 or 2, wherein a dimension from the notch to the shape retaining member in the vertical direction is 15 mm or less. Further comprising the contents stored in the storage section,
The said other part of the said 1st side film and said 2nd side film of the said each other peripheral edge is being sealed in the said sealing part in the state which the said content was accommodated in the said storage part. The package according to any one of 3 above.   The package according to claim 4, wherein an opening is provided so as to connect the outside of the package and the storage section by cutting the package from the notch.

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