JP2020111378A - Steam-permeable pouch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a steaming type pouch in which contents can be easily taken out. SOLUTION: A steaming type pouch 10 has a sheet 20 including a first sheet 21 and a second sheet 22 facing each other, and a storage space 11 capable of accommodating the contents is between the first sheet 21 and the second sheet 22. A seal portion 30 that seals the sheet 20 so as to be formed, an opening 40 that opens the accommodation space 11, a seal schedule portion 70 that is scheduled to form a closed seal portion that closes the opening 40, and a closed seal portion. It is provided with a steam passage portion 60 formed in the sheet 20 so as to be opened by an increase in the pressure of the accommodation space 11 in the state where the is formed. The sheet 20 includes an outermost layer and a sealant layer laminated on the outermost layer. The sealant layer is made of a material having excellent tearability in the flow direction of the resin. [Selection diagram] Fig. 3

Description

The present invention relates to a steamed pouch.

Vaporized pouches that contain the contents to be heated are known. The vaporization-type pouch is a sheet sealed so as to form an accommodation space capable of accommodating contents, a vaporization section in which a part of the sheet is sealed so as to be opened as the pressure in the accommodation space increases, and , An opening provided so that the accommodation space can be filled with the contents. When the contents are stored in the storage space of the vaporized pouch, the storage space is closed by sealing the opening. When the steam-permeable pouch containing the contents is heated by a heating means such as a microwave oven, steam is generated from the contents, the pressure of the containing space rises, and stress is generated in each part of the sheet. When the pressure in the accommodation space rises to a certain level, the seal forming the vaporization section is peeled off, and a passage that connects the accommodation space and the external space is formed in the vaporization section. Therefore, the water vapor in the accommodation space passes through the passage formed in the vaporization section and is discharged to the outside of the vaporization-type pouch, so that the increase in the pressure in the accommodation space is suppressed. Patent Document 1 discloses a pouch for a microwave oven, which is an example of a conventional vaporization-type pouch. This microwave oven pouch includes a laminated film (30) as shown in FIG. The laminated film (30) includes a base material layer (31), a printing layer (32), another layer (33), and a sealant layer (34). When the heating of the microwave oven pouch containing the contents is completed by the heating means, the laminated film (30) is torn from the opening means (18) and the contents are taken out from the accommodation space.

JP, 2018-127257, A

In the pouch for a microwave oven described in Patent Document 1, the sealant layer (34) may extend during tearing of the laminated film (30) and the sealant layer (34) may be crystallized. If the sealant layer (34) crystallizes, it will be difficult to tear the laminated film (30) any further. Therefore, it is difficult to take out the contents.

(1) In the vapor-permeable pouch according to the present invention, a sheet including a first sheet and a second sheet facing each other and a storage space capable of storing contents are formed between the first sheet and the second sheet. As described above, a seal portion for sealing the sheet, an opening portion for opening the accommodation space, a seal scheduled portion for which a closed seal portion for closing the opening portion is scheduled to be formed, and a state in which the closed seal portion is formed. In a vaporization type pouch provided with a vaporization portion provided in the sheet so as to open due to an increase in pressure of the accommodation space, wherein the sheet is an outermost layer, and a sealant layer laminated on the outermost layer. And the sealant layer is made of a material having excellent tearability in the resin flow direction.
If the vaporized pouch in which the contents are accommodated in the accommodation space and the closed seal portion is formed (hereinafter, referred to as "closed vaporized pouch") is heated, the pressure in the accommodation space is increased. Accordingly, a passage that connects the accommodation space and the external space is formed in the vaporization section. Therefore, the water vapor in the accommodation space passes through the passage formed in the vaporization section and is discharged to the outside of the vaporization-type pouch, so that the pressure in the accommodation space is prevented from increasing. Further, since the sealant layer is made of the material having the above-mentioned properties, when a force for tearing the sheet is applied to the sheet, the portion of the sheet including the closing seal portion can be easily torn. Therefore, the contents can be easily taken out from the torn portion of the sheet.

(2) In a preferred example, in the vapor-permeable pouch according to (1), the sheet further includes an intermediate layer laminated between the outermost layer and the sealant layer.
Therefore, the strength of the vaporized pouch is increased.

(3) In a preferred example, in the vapor-permeable pouch according to (2), the intermediate layer is made of a material having excellent tearability in the resin flow direction.
According to the vaporized pouch, the portion of the sheet including the closing seal portion can be easily torn. Therefore, the contents can be easily taken out.

(4) In a preferred example, in the steam-permeable pouch according to any one of (1) to (3), a guide part that guides cutting of the closed seal part in a state where the closed seal part is formed is further provided. Prepare
According to the vaporized pouch, the portion of the sheet including the closing seal portion can be easily torn. Therefore, the contents can be easily taken out.

(5) In a preferable example, in the vapor-permeable pouch according to (4), which refers to (2) or (3), the guide portion includes a cutoff line provided in the intermediate layer.
According to the vaporization type pouch, even when the intermediate layer is provided, the portion of the sheet including the closing seal portion can be easily torn. Therefore, the contents can be easily taken out.

(6) In a preferred example, in the vapor-permeable pouch according to (4) or (5), the guide portion is the bottom of the vapor-permeable portion and the vapor-permeable pouch in the standard height direction of the vapor-permeable pouch. It is provided between and.
When the closed vaporization-type pouch is heated, the steam generated from the contents greatly expands the portion of the sheet between the vaporization portion and the bottom in the standard height direction. According to the vaporization type pouch, a large bulge of the sheet can be easily torn. Therefore, the contents can be easily taken out.

(7) In a preferable example, in the steam-permeable pouch described in (6), the guide portion is provided at a position closer to the steam-permeable portion than the bottom in the standard height direction.
Therefore, many contents can be stored in the storage space.

(8) In a preferred example, the steam-permeable pouch according to any one of (1) to (7) is provided with the content stored in the storage space and the closing seal portion.
According to the vaporized pouch, the same effects as those of the vaporized pouch described in any one of (1) to (7) can be obtained.

According to the steam-permeable pouch of the present invention, the contents can be easily taken out.

The front view of the ventilation type pouch of embodiment. Sectional drawing which shows the layer structure of a sheet|seat. The front view of the steam-permeable pouch before the opening is closed. FIG. 3 is an enlarged view of the vaporization unit in an open state and its surroundings. The enlarged view of X5 of FIG. The front view of the ventilation type pouch in the opened state. The table which shows the test conditions of a test. The table which shows the test result of a test.

(Embodiment)
FIG. 1 shows an example of a steam-permeable pouch 10 capable of accommodating a content C suitable for heating and discharging steam generated from the content C. The content C is an object to be heated that generates steam by being heated. An example of the content C is food. An example of food is food having fluidity such as stew and soup. The vaporized pouch 10 is configured so that the content C can be stored for a long period of time while maintaining its quality. The vaporized pouch 10 can have various shapes. Examples of shapes that the vaporized pouch 10 can take are a standing type, a flat bag type, a gusset type, and a pillar type. The shape of the vaporized pouch 10 illustrated in FIG. 1 is a standing type. Hereinafter, the left-right direction of the steam-permeable pouch 10 in a front view of the steam-permeable pouch 10 is referred to as a standard width direction, and the direction orthogonal to the standard width direction is referred to as a standard height direction.

The vaporization type pouch 10 includes a sheet 20, a seal portion 30, an opening 40, a guide portion 50, and a vaporization portion 60. The dots in FIG. 1 and the like represent the seal portion 30. The sheet 20 includes a first sheet 21, a second sheet 22, and a bottom sheet 23. The first sheet 21 and the second sheet 22 face each other such that the accommodation space 11 for accommodating the content C is formed between the sheets 21 and 22. The bottom sheet 23 is arranged on the bottom portions 21A and 22A of the respective sheets 21 and 22 so as to close the space between the bottom portion 21A of the first sheet 21 and the bottom portion 22A of the second sheet 22. The configuration of the seat 20 can be arbitrarily selected. In the first example, by folding one sheet, the respective sheets 21 and 22 facing each other and the bottom sheet 23 arranged on the bottom portions 21A and 22A of the respective sheets 21 and 22 are formed. In the second example, the sheets 21 to 23 are three individually formed sheets.

The sheet 20 has a layered structure in which a plurality of layers are laminated. The layer structure of the sheet 20 can be arbitrarily selected. In the first example, the sheets 21 to 23 have the same layer structure. In the second example, the first sheet 21 and the second sheet 22 have the same layer structure, and the bottom sheet 23 has a layer structure different from each of the sheets 21 and 22. In the third example, each of the sheets 21 to 23 has a different layer structure. FIG. 1 and the like show a steam-permeable pouch 10 having the layer structure of the first example.

FIG. 2 is a sectional structure of each of the sheets 21 to 23. Each of the sheets 21 to 23 includes an outermost layer 20A, an intermediate layer 20B, a sealant layer 20C, a first adhesive layer 20D, and a second adhesive layer 20E. An example of the method for manufacturing each of the sheets 21 to 23 is dry lamination. The first adhesive layer 20D is provided between the outermost layer 20A and the intermediate layer 20B so as to adhere the outermost layer 20A and the intermediate layer 20B. The second adhesive layer 20E is provided between the intermediate layer 20B and the sealant layer 20C so as to adhere the intermediate layer 20B and the sealant layer 20C.

The outermost layer 20A is mainly excellent in gas barrier property, printability, and heat resistance. The outermost layer 20A is, for example, a transparent vapor deposition layer. An example of a material forming the outermost layer 20A is polyethylene terephthalate (hereinafter, referred to as "transparent vapor deposition PET") on which an inorganic thin film is vapor deposited. The intermediate layer 20B is mainly excellent in heat resistance and moisture resistance. An example of a material forming the intermediate layer 20B is nylon. In a more preferable example, the material forming the intermediate layer 20B is nylon (hereinafter, referred to as “linear cut property NY”) having excellent tearability in the resin flow direction. Below, the flow direction of the resin of the material which comprises each sheet|seat 21, 22 is called MD(Machine Direction) direction, and the direction orthogonal to MD direction is called TD(Transverse Direction) direction. The MD direction of each of the sheets 21 and 22 is a direction along the standard width direction. The TD direction of each of the sheets 21 and 22 is the direction along the standard height direction. An example of the material forming the first adhesive layer 20D is a polyester adhesive. An example of the material forming the second adhesive layer 20E is a polyester adhesive.

The sealant layer 20C has excellent heat resistance, heat sealability, and impact resistance. An example of a material forming the sealant layer 20C is an axially stretched polypropylene (hereinafter, referred to as “linear cut CPP”) having excellent tearability in the MD direction. The excellent tearability in the MD direction means, for example, a case where the tearing force according to the trouser tearing method defined in JIS K7128-1 is 1.2 N or less. In the Trouser tearing method, a rectangular test piece having a length of 50 mm in the TD direction and a length of 150 mm in the MD direction was cut into a 75 mm cut in the center, and in a constant temperature room at 23° C., a speed of 200 mm/min was applied to the MD direction. The tear force was measured. The linearly cuttable CPP contains, for example, 3 to 10 parts by weight of the low crystalline ethylene elastomer with respect to 100 parts by weight of the propylene/ethylene block copolymer. The low crystalline ethylene-based elastomer has, for example, a density in the range of 0.865 to 0.890 g/cm ³ and an endothermic amount in the range of 5 to 30 J/g at the time of melting specified in JIS K7122. include.

The seal portion 30 shown in FIG. 1 joins the sheets 21 to 23 so that the sheets 21 to 23 are not separated. In one example, the seal part 30 joins the sealant layer 20C of the first sheet 21, the sealant layer 20C of the second sheet 22, and the sealant layer 20C of the bottom sheet 23. One example of a method of forming the seal portion 30 is heat sealing. The outer shape of the steam-permeable pouch 10 in front view can be arbitrarily selected. In the example shown in FIG. 1, the outer shape of the steam-permeable pouch 10 is a rectangle. The sheet 20 can be divided into a portion surrounded by the seal portion 30 (hereinafter referred to as “inner portion 24”) and the seal portion 30. The accommodation space 11 is a space surrounded by the inner part 24 of the first sheet 21, the inner part 24 of the second sheet 22, and the inner part 24 of the bottom sheet 23, and communicates with the outside of the steam-permeable pouch 10. It is closed by the seal portion 30 so as not to.

The seal portion 30 includes a closed seal portion 31 (hereinafter, referred to as “first seal portion 31”) that closes the opening 40. In one example, the seal part 30 further includes a second seal part 32, a third seal part 33, and a fourth seal part 34. The first seal portion 31 is provided above the inner portion 24 in the standard height direction. The second seal portion 32 is provided below the inner portion 24 in the standard height direction. The third seal portion 33 is provided on the left side or the right side of the inner portion 24 in the standard width direction. The fourth seal portion 34 is provided on the right side or the left side of the inner portion 24 in the standard width direction. In one example, the third seal portion 33 and the fourth seal portion 34 are separated from the bottom sheet 23 toward the opening 40 in the standard height direction.

An inner edge 31A that is an edge on the inner portion 24 side in the first seal portion 31, an inner edge 32A that is an edge on the inner portion 24 side in the second seal portion 32, and an edge on the inner portion 24 side in the third seal portion 33. An inner edge 33A and an inner edge 34A that is an edge of the fourth seal portion 34 on the inner portion 24 side define the outer contour of the inner portion 24. An outer edge 31B that is an edge opposite to the inner edge 31A of the first seal portion 31, an outer edge 32B that is an edge opposite to the inner edge 32A of the second seal portion 32, and an opposite side of the inner edge 33A of the third seal portion 33. The outer edge 33B, which is the edge of the steam-permeable pouch 10, and the outer edge 34B, which is the edge of the fourth seal portion 34 opposite to the inner edge 34A, define the outer shell of the steam-permeable pouch 10.

The width of each seal portion 31 to 34 can be arbitrarily selected. The width of each seal portion 31 to 34 is the length between the inner edges 31A to 34A and the outer edges 31B to 34B in the normal line of the center line of each seal portion 31 to 34. The center line of each seal portion 31 to 34 is an imaginary line segment that passes between the inner edges 31A to 34A and the outer edges 31B to 34B. When the width of each seal portion 31 to 34 is different for each portion, for example, the maximum width or the average width of a plurality of portions in each seal portion 31 to 34 represents the width of the seal portion.

The width and height of the vaporized pouch 10 are preferably determined, for example, from the relationship between the amount of the contents C to be stored and the portability. The width of the vaporized pouch 10 is the length between the outer edge 33B of the third seal portion 33 and the outer edge 34B of the fourth seal portion 34 in a line segment orthogonal to the standard height direction. When the width of the steam-permeable pouch 10 is different for each part, for example, the maximum width or the average of the widths of a plurality of parts represents the width of the steam-permeable pouch 10. The height of the vaporized pouch 10 is the length between the outer edge 31B of the first seal portion 31 and the outer edge 32B of the second seal portion 32 in the line segment orthogonal to the standard width direction. When the height of the vaporized pouch 10 is different for each part, for example, the maximum height or the average of the heights of a plurality of parts represents the height of the vaporized pouch 10.

The opening 40 is formed between the upper portion 21B of the first sheet 21 and the upper portion 22B of the second sheet 22 so that the content C can be filled in the accommodation space 11. In the steam-permeable pouch 10 shown in FIG. 1, the opening 40 is closed by the first seal portion 31. The steam-permeable pouch 10 with the opening 40 closed (hereinafter, referred to as "closed steam-permeable pouch 10") includes a pouch body 10A and a planned separation portion 10B. The pouch body 10A and the planned separation portion 10B are separated by a cutoff line 51 that constitutes the guide portion 50. The pouch main body 10A is a portion for accommodating the content C. The to-be-separated portion 10B is a part of each of the sheets 21 and 22 including the first seal portion 31, and is a portion that the user separates from the pouch body 10A to take out the content C.

The guide part 50 is formed between the pouch body 10A and the planned separation part 10B so that the sheets 21, 22 can be easily cut when the planned separation part 10B is separated from the pouch body 10A. The position where the guide portion 50 is provided in the standard height direction can be arbitrarily selected. In the first example shown in FIG. 1 and the like, the guide portion 50 is provided between the vapor passage portion 60 and the bottom sheet 23 in the standard height direction. In a preferred example, the guide portion 50 is provided at a position closer to the vapor passage portion 60 than the bottom sheet 23 in the standard height direction. In the second example, the guide portion 50 is provided between the vapor passage portion 60 and the opening 40 in the standard height direction.

The guide portion 50 includes a cutoff line 51 and a notch 52. The cutoff line 51 is a set of perforations formed on the seal portions 33, 34 and the inner portion 24 of the sheets 21, 22 and is formed along the MD direction of the sheets 21, 22. The notch 52 is formed on at least one of the third seal portion 33 and the fourth seal portion 34 so that the tip of the notch 52 is located on an imaginary line extending from the cutoff line 51. FIG. 1 shows an example in which the notch 52 is formed in the third seal portion 33.

The tear strength of the guide portion 50 having the cutoff line 51 is lower than that of the other portions of the sheets 21 and 22 where the cutoff line 51 is not formed. Therefore, when a force is applied to the guide portion 50 in the direction along the cut line 51, the sheets 21 and 22 are easily torn along the cut line 51. The cut line 51 includes a plurality of cuts 51A formed discontinuously in the standard width direction. The means for forming the cutoff line 51 is, for example, a perforation machine.

FIG. 5 is an enlarged view of the X5 portion of FIG. 1, showing an example of a specific form of the cutoff line 51. In this example, the cutoff line 51 is configured by a plurality of cut groups 51G arranged in the standard width direction. One cut group 51G is composed of a plurality of cuts 51A arranged in the standard height direction. Each cut 51A that constitutes one cut group 51G is a first-type cut 51A that is inclined from one of the standard height directions to the other as it goes from one side of the standard width direction to the other, and the cut width of the standard width direction. It is classified as a second type cut 51A that inclines from the other side to the one side in the standard height direction from one side to the other side. A plurality of first type cuts 51A and second type cuts 51A that are alternately formed in the standard height direction configure one cut group 51G.

In a preferred example, the notch 51A does not penetrate all three layers of the outermost layer 20A, the intermediate layer 20B, and the sealant layer 20C which form the sheets 21 and 22, and one or two of the three layers. Formed in layers. In the present embodiment, the notch 51A is provided so as to penetrate only the intermediate layer 20B of the sheets 21 and 22.

The vaporized pouch 10 is heated by the heating means to heat the content C. An example of the heating means is a microwave oven. Water vapor is generated from the content C as the vaporized pouch 10 is heated. In the steam-permeable pouch 10 after being closed, the storage space 11 is closed by the seal portion 30, so that the pressure in the storage space 11 rises as steam is generated. The vaporization unit 60 is opened as the pressure in the accommodation space 11 rises, and is configured so that the steam in the accommodation space 11 can be discharged to the outside of the vaporization pouch 10. In a preferred example, the vaporization section 60 is configured to open when the pressure in the accommodation space 11 rises to a pressure within a predetermined pressure range. The vaporization part 60 can take various forms. In the first example, the vaporization part 60 constitutes a part of the seal part 30. In the specific example of the first example, the vapor passage portion 60 is provided on at least one of the third seal portion 33 and the fourth seal portion 34. In the second example, the vapor passage portion 60 is provided independently of the seal portion 30 and provided in the inner portion 24 of each of the sheets 21 and 22. In the specific example of the second example, holes (not shown) penetrating the sheets 21, 22 are formed in the inner portion 24 of the sheets 21, 22. A vapor passage portion 60 that seals the periphery of the hole so that the accommodation space 11 and the hole do not communicate with each other is formed in the inner portion 24 of each of the sheets 21 and 22.

FIG. 1 shows a first example in which the vapor passage portion 60 is provided only in the fourth seal portion 34. The shape of the vaporization part 60 is a shape that is recessed from the outside to the inside in the standard width direction. The leading end portion 61, which is the innermost portion in the standard width direction of the vaporization portion 60, is provided at a location where strong stress concentration occurs when the pressure in the accommodation space 11 of each of the sheets 21 and 22 increases. When the pressure in the accommodation space 11 rises to a pressure within a predetermined pressure range, the vaporization section 60 opens. Specifically, as the accommodation space 11 rises, the first sheet 21 and the second sheet 22 that are joined at the tip 61 of the vaporization section 60 are separated, and as shown in FIG. A vapor vent passage 62 that communicates with the outside of the vaporization type pouch 10 is formed in the vaporization portion 60. The range in which the vaporization section 60 is peeled off differs depending on the magnitude of the pressure in the accommodation space 11. When the pressure in the accommodation space 11 is high, the peeling may proceed to the root of the vaporization section 60. The passage area of the vapor vent passage 62 becomes wider as the peeling of the vaporizing portion 60 progresses. When the vaporizing section 60 is opened, the water vapor in the accommodation space 11 passes through the vapor vent passage 62 and is discharged to the outside of the vaporizing pouch 10. By discharging the water vapor, the rise in the pressure of the accommodation space 11 is suppressed, and the vaporization-type pouch 10 is prevented from bursting.

FIG. 3 shows the steam-permeable pouch 10 before the opening 40 is closed (hereinafter, referred to as “the steam-permeable pouch 10 before closing”). The contents C are put into the accommodation space 11 through the opening 40 of the vapor-permeable pouch 10 before being closed. After the contents C have been charged, the first seal portion 31 is formed by heat-sealing the scheduled seal portion 70 in which the first seal portion 31 is scheduled to be formed. A vaporized pouch 10 is obtained.

FIG. 6 shows the vaporization type pouch 10 (hereinafter, referred to as "the vaporization type pouch 10 after opening") in which the scheduled separation portion 10B is separated from the pouch body 10A. In the steam-permeable pouch 10 (see FIG. 1) after closing, when separating the planned separation portion 10B from the pouch body 10A, the sheets 21, 22 are torn from the tip of the notch 52, and the sheets 21, 22 are torn. A force is applied to each of the sheets 21 and 22 so that the sheet advances along the cut line 51. When the scheduled separation portion 10B is separated from the pouch body 10A, an outlet 80 for taking out the content C is formed. The user can eat the contents C by using the pouch body 10A in which the scheduled separation portion 10B is separated as a container.

According to the steam permeable pouch 10 of the embodiment, the following actions and effects can be obtained.
When the contents C are accommodated in the accommodation space 11 and the closed vaporization-type pouch 10 is heated, the vapor vent passage 62 that connects the accommodation space 11 and the external space is connected with the increase in the pressure of the accommodation space 11. It is formed in the vaporization section 60. Therefore, the water vapor in the accommodation space 11 passes through the vapor vent passage 62 and is discharged to the outside of the steam-flowing pouch 10, so that the pressure increase in the accommodation space 11 is suppressed. Further, since the sealant layer 20C is made of a material having excellent tearability in the MD direction, when a force for tearing the sheet 20 is applied to the sheet 20, the portion of the sheet 20 including the closing seal portion 31 can be easily formed. Can be torn. Therefore, the content C can be easily taken out from the take-out port 80 formed in the portion where the sheet 20 is torn.

(Example)
The inventor of the present application conducted a test using the samples of Examples and Comparative Examples to confirm the relationship between the layer structure of each of the sheets 21 and 22 and the tearability. FIG. 7 shows the test conditions. FIG. 8 shows the results of the test. In the following description, for convenience of description, the same reference numerals are given to portions of the sample of the comparative example that are common to those of the sample of the example. The sample of the example is a vaporized pouch 10 according to the embodiment. The sample of the comparative example is a steam-permeable pouch 10 having a configuration different from that of the steam-permeable pouch 10 of the example.

The steam-permeable pouch 10 of the comparative example is different from the steam-permeable pouch 10 of the embodiment in the following points, and has the same configuration as the steam-permeable pouch 10 of the embodiment in other points. The material forming the sealant layer 20C of the vapor-permeable pouch 10 of the comparative example is an axially stretched polypropylene (hereinafter, referred to as "normally cuttable CPP") that does not have excellent tearability in the MD direction. The fact that the tearability in the MD direction is not excellent means, for example, the case where the tearing force based on the trouser tearing method defined in JIS K7128-1 is more than 1.2N.

The specifications relating to the samples of each example and comparative example are as follows. The material forming the outermost layer 20A in the samples of each example and comparative example is transparent vapor deposition PET. The outermost layer 20A has a thickness of 12 μm. The material forming the intermediate layer 20B in the samples of Examples 1 and 3 has a linear cut property NY. The material forming the intermediate layer 20B in the samples of Examples 2 and 4 and the comparative example is nylon (hereinafter, referred to as “normally cuttable NY”) that does not have excellent cuttability in the MD direction. The thickness of the intermediate layer 20B in the samples of the respective examples and comparative examples is 15 μm. A cutoff line 51 is provided on the intermediate layer 20B in the samples of Examples 1 and 2. The cutoff line 51 is not provided in the intermediate layer 20B in the samples of Examples 3, 4 and the comparative example. The material forming the sealant layer 20C in the samples of each example is a linear cut CPP. The material forming the sealant layer 20C in the sample of the comparative example is usually a cuttable CPP. The thickness of the sealant layer 20C in the samples of the respective examples and comparative examples is 60 μm.

In the test, whether or not each of the sheets 21 and 22 was torn along the cut line 51 when the planned separation portion 10B was separated from the pouch body 10A (hereinafter, referred to as “cutting property”), and each of the sheets 21 and 22. The appearance of the outlet 80 (hereinafter, referred to as the “external appearance of the outlet”) when it was torn along the cut line 51 was confirmed. Regarding the appearance of the take-out port, the distance between the cutting edge of the first sheet 21 and the cutting edge of the second sheet 22 in the standard height direction (hereinafter referred to as “shift distance”) was measured. The sheets 21 and 22 were evaluated to be cleanly torn when the displacement interval was less than the specified interval, and the sheets 21 and 22 were evaluated to be not properly torn when the displacement interval was equal to or greater than the specified interval. The specified interval is, for example, 2 mm. The cut edges of the sheets 21 and 22 are edges of the sheets 21 and 22 formed on the pouch body 10A and the planned separation portion 10B, respectively, by separating the planned separation portion 10B from the pouch body 10A. The gap between the cutting edge of the first sheet 21 and the cutting edge of the second sheet 22 in the pouch body 10A, or the cutting edge of the first sheet 21 and the cutting edge of the second sheet 22 in the planned separation portion 10B. It is an interval. In the test using the samples of Examples 1 and 2, a separating force was applied to each of the sheets 21 and 22 so that each of the sheets 21 and 22 was torn along the cut line 51. In the tests using the samples of Examples 3 and 4 and the comparative example, the portions of the sheets 21 and 22 corresponding to the cutoff line 51 were separated into the sheets 21 and 22 so as to be torn along the standard width direction. I applied force.

In the cutability item of FIG. 8, “○” indicates that the tearing of the sheets 21 and 22 reaches the fourth seal portion 34 from the third seal portion 33, so that the planned separation portion 10B is completely separated from the pouch body 10A. It shows that. In the cutability item of FIG. 8, the tear of each sheet 21, 22 does not reach from the third seal portion 33 to the fourth seal portion 34, and the planned separation portion 10B is completely separated from the pouch body 10A. It shows that there was not.

In the appearance item of the outlet in FIG. 8, “◯” indicates that the gap is less than the specified value. “Δ” in the appearance item of the outlet in FIG. 8 indicates that the deviation interval is equal to or greater than the specified value. In addition, in the sample of the comparative example, the tear did not reach from the third seal portion 33 to the fourth seal portion 34, and therefore the appearance item of the outlet is not evaluated.

According to the samples of the respective examples, it was confirmed that the scheduled separation portions 10B were completely separated from the pouch body 10A by tearing the sheets 21 and 22 along the standard width direction. Further, by using at least one of the linear cut property NY as the intermediate layer 20B and the provision of the cutoff line 51 in the intermediate layer 20B, the deviation interval becomes less than the specified value, and the sheets 21, 22 are neatly formed. It was confirmed to be torn.

(Modification)
In addition, the said embodiment is an illustration of the form which the vaporization type|mold pouch concerning this invention can take, and does not intend limiting the form. The vaporized pouch according to the present invention may take a form different from the form exemplified in the embodiment. An example thereof is a form in which a part of the configuration of the embodiment is replaced, changed, or omitted, or a form in which a new configuration is added to the embodiment. An example of a modified example of the embodiment will be shown below.

-The layer structure of the sheet 20 can be arbitrarily changed. In the first modification, the sheet 20 does not have the intermediate layer 20B. In the case of the first modification, the sealant layer 20C is laminated on the outermost layer 20A via the first adhesive layer 20D. In the second modification, the sheet 20 includes one or more layers laminated between the outermost layer 20A and the sealant layer 20C in addition to or instead of the intermediate layer 20B.

10: Vaporized pouch 11: Storage space 20: Seat 20A: Outermost layer 20B: Intermediate layer 20C: Sealant layer 21: First sheet 22: Second sheet 23: Bottom sheet (bottom)
30: seal part 31: first seal part (closed seal part)
40: Opening part 50: Guide part 60: Vaporizing part 70: Planned sealing part C: Contents

Claims (8)

A sheet including a first sheet and a second sheet facing each other;
A seal portion that seals the sheet so that a storage space capable of storing contents is formed between the first sheet and the second sheet;
An opening that opens the accommodation space,
A seal-scheduled portion that is scheduled to form a closed seal portion that closes the opening,
A vaporization type pouch comprising: a vaporization portion provided on the sheet so as to be opened by an increase in pressure of the accommodation space in a state where the closing seal portion is formed,
The sheet includes an outermost layer, and a sealant layer laminated on the outermost layer,
The vaporized pouch in which the sealant layer is made of a material having excellent tearability in the resin flow direction. The vapor-permeable pouch according to claim 1, wherein the sheet further includes an intermediate layer laminated between the outermost layer and the sealant layer. The vapor-permeable pouch according to claim 2, wherein the intermediate layer is made of a material having excellent tearability in the resin flow direction. The vapor-permeable pouch according to any one of claims 1 to 3, further comprising a guide portion that guides cutting of the closing seal portion in a state where the closing seal portion is formed. The vaporization-type pouch according to claim 4, wherein the guide portion includes a cutoff line provided in the intermediate layer. The vapor-permeable pouch according to claim 4 or 5, wherein the guide portion is provided between the vapor-permeable portion and the bottom of the vapor-permeable pouch in the standard height direction of the vapor-permeable pouch. The vaporization type pouch according to claim 6, wherein the guide portion is provided at a position closer to the vaporization portion than the bottom in the standard height direction. Contents stored in the storage space,
The vaporization-type pouch according to any one of claims 1 to 7, comprising the closing seal portion.