JP5946780B2 - Pouch and contents-enclosed pouch - Google Patents

Description

  The present technology relates to a pouch and a content-enclosed pouch having an internal space and a bag having an opening for putting contents into the internal space, and a fastener for opening and sealing the opening.

Patent Document 1 discloses an example of a pouch and a content-enclosed pouch.
The pouch of Patent Document 1 includes a package having an opening and a fastener that opens and seals the opening. When the fastener is in the fitted state, the pouch is sealed. On the other hand, when the fitting state of the fastener is released, the pouch is opened. The contents-enclosed pouch of Patent Document 1 includes a pouch and contents.

  The contents-enclosed pouch of Patent Document 1 generates steam in the internal space by being heated by a microwave oven or the like. For this reason, the pressure in the internal space of the content-filled pouch increases. As the pressure in the internal space rises, a force is applied to the content-filled pouch to separate the sheets forming the internal space of the pouch facing each other. Further, as the pressure in the internal space rises, a force for releasing the fitting state of the fastener acts on the content-filled pouch. As the pressure in the internal space increases, when the force for releasing the fitting state of the fastener exceeds the fitting strength of the fastener, the fitting state of the fastener is released. Thereby, the steam generated in the internal space is discharged to the outside.

JP 2009-166846 A

  When the force that attempts to release the fitting state of the fastener as the internal pressure increases reaches the limit of the fitting strength of the fastener, the fitting state of the fastener is released at a stretch. For this reason, a loud sound is generated when the pouch is opened.

  The present invention was created based on the above background, and an object thereof is to provide a pouch and a content-enclosed pouch that can reduce the volume of sound generated when the pouch is opened as the internal pressure increases. .

(1) This means includes “an opening and a bag including a seal portion that is a portion where an edge of the opening is sealed; and a fastener provided on the bag so that the opening can be opened and closed. The fastener includes a first portion and a second portion, the first portion is a portion where a male mold and a female mold are fitted, and the second portion does not fit the male mold and the female mold. Or a portion where the male mold and the female mold are fitted with a weaker fitting strength than the first part .

The fastener of the pouch has a first portion and a second portion . When the contents-enclosed pouch using the pouch is heated, the force for releasing the fitting state of the fastener increases as the internal pressure increases.

According to the pouch, the force for releasing the fitting state of the fastener reaches the fitting force corresponding to the fitting strength of the second portion before the fitting force corresponding to the fitting strength of the first portion. . For this reason, the fitting state of the second part is released before the fitting state of the first part . Thereby, before the force for releasing the fitting state of the fastener reaches the fitting force corresponding to the fitting strength of the first portion , the steam generated in the internal space can be discharged to the outside. For this reason, it is possible to reduce the sound generated when the pouch is opened as the internal pressure increases.

(2) One form of the above means is that “ the second part is a part in which the male mold and the female mold are fitted with lower fitting strength than the first part, and the first part is fitted. The ratio of the fitting strength of the second part to the strength includes a pouch that is greater than 0% and not greater than 90% .
(3) a form of said means, the length of the portion where the second portion in the longitudinal direction of "the fastener is formed is 5% or more in the longitudinal direction of the fastener length is the length the fastener 70 Pouches having a length of less than or equal to "%".
(4) One form of the above means is that “ the second portion is a pair of a crushed male mold and a crushed female mold, a pair of a crushed male mold and an uncrushed female mold, and an uncrushed male mold. Including a pouch containing one of a pair of a mold and a crushed female mold .

( 5 ) One form of the above means includes "the pouch having a second opening that is opened in addition to the first opening that is the opening".
Since the pouch has the second opening, the contents can be put into the inner space of the bag from the second opening in the manufacturing process of the content-enclosed pouch. For this reason, the possibility that the contents adhere to the fastener during the manufacturing process of the contents-enclosed pouch is reduced.

( 6 ) One form of the above means is that “the pouch has a form as a standing pouch, the bag has a bag main body portion and a bottom gusset, and the bag main body portion defines an internal space of the bag. The bottom gusset supports the bag main body, and the second opening includes a pouch having a shape protruding from a side portion of the bag main body toward the outside of the bag.

  The pouch bag has a second opening. The second opening has a shape protruding from the bag body toward the outside of the bag. For this reason, when the second opening is sealed in the manufacturing process of the content-enclosed pouch, it is possible to form a state where the chuck for chucking the bag is not positioned on the movement locus of the sealing device. For this reason, the sealing process of the second seal portion is facilitated.

(7) This means is “a content-enclosed pouch having the pouch according to any one of the above, wherein a portion outside the fastener in the opening is sealed , and the content housed in the pouch. "including.

  The present pouch and the present content-enclosed pouch contribute to reducing the volume of sound generated when the pouch is opened as the internal pressure increases.

The front view of the content enclosure pouch of embodiment. The front view of the pouch of embodiment. Sectional drawing of the high fitting intensity | strength part fractured | ruptured in the D3-D3 line | wire of FIG. Sectional drawing of the low fitting intensity | strength part fractured | ruptured in the D4-D4 line | wire of FIG. It is a figure regarding the manufacturing process of the content enclosure pouch of embodiment, (a) is a front view of the pouch in the state by which the 2nd opening part was opened, (b) is the nozzle of the filling machine inserted in the 2nd opening part. The front view of the state of the pouch in the state where it was, (c) is a front view of the pouch in the state where the contents are accommodated in the internal space. It is a figure regarding the manufacturing process of the content enclosure pouch of embodiment, (a) is a front view of the pouch before a sealing process is given to a 2nd opening part, (b) is a sealing process applied to a 2nd opening part. The front view of the pouch in the middle of being performed, (c) is a front view of the pouch after the second opening is sealed. It is a figure regarding the pouch of embodiment, and is a front view of the pouch in the middle of a part of the bag being cut off. The front view of the pouch which is a figure regarding the pouch of embodiment, and has shown the state which the 1st opening part has opened. It is a figure regarding the pouch of embodiment, and is a front view of a pouch. The front view of the pouch which is a figure regarding the pouch of embodiment, and has shown the state which the low fitting intensity | strength part opened. The figure which shows the experimental result verified about the opening aspect of the fastener when the fitting intensity | strength of a low fitting intensity | strength part was changed. The figure which shows the experimental result verified about the opening aspect of the fastener when changing the low fitting intensity | strength part length.

With reference to FIG. 1, the structure of the content enclosure pouch 1 is demonstrated. The dots shown in FIGS. 1, 2, and 5 to 10 indicate the seal portion of the pouch 10.
The content-enclosed pouch 1 has a pouch 10 and a content 200. The pouch 10 has a form as a standing pouch. In the pouch 10, the second opening 61 (see FIG. 2) is sealed. The content 200 is a liquid seasoning.

The configuration of the pouch 10 will be described with reference to FIG.
The pouch 10 has a bag 20 and a fastener 100. The pouch 10 is sealed at all edges except the portion where the second opening 61 is formed.

  The bag 20 includes a main bag portion 30, a sub bag portion 70, a seal portion 80, and a cutting assisting portion 90. The bag 20 is formed of a laminated sheet. The laminated sheet has an outermost layer, an intermediate layer, and an innermost layer. The outermost layer is composed of a polyethylene terephthalate layer. The innermost layer is composed of an unstretched polypropylene layer. The intermediate layer includes a printing layer, a first adhesive layer, a stretched nylon layer, and a second adhesive layer. The print layer is formed inside the outermost layer. The first adhesive layer is formed inside the printing layer. The stretched nylon layer is formed inside the first adhesive layer. The second adhesive layer is formed inside the stretched nylon layer. The innermost layer is formed inside the second adhesive layer. The printed layer has a pattern and a description of a product on the outer surface.

The bag 20 includes a first corner 21, a second corner 22, a third corner 23, a fourth corner 24, a first side edge 25, a second side edge 26, an upper edge 27, a lower edge 28, And an internal space 29.
The first side edge 25 forms an edge from the first corner 21 to the third corner 23 of the bag 20. The second side edge 26 forms an edge from the second corner portion 22 to the fourth corner portion 24 of the bag 20. The upper edge 27 forms an edge from the first corner portion 21 to the second corner portion 22 in the bag 20. The lower edge 28 forms an edge from the third corner portion 23 to the fourth corner portion 24 in the bag 20.

  The first side edge 25 and the upper edge 27 are continuous with each other at the first corner 21. The first side edge 25 and the lower edge 28 are continuous with each other at the third corner 23. The second side edge 26 and the upper edge 27 are continuous with each other at the second corner 22. The second side edge 26 and the lower edge 28 are continuous with each other at the fourth corner 24.

The main bag portion 30 includes a bag main body portion 40, a bottom gusset 50, and a protruding portion 60.
The bag body 40 has a first side part 41, a second side part 42, and a first opening 43.
The 1st side part 41 has shown the part by the side of the internal space 29 rather than the boundary line XA shown with the dashed-two dotted line in a figure. The second side portion 42 indicates a portion including the second side edge 26.

  The first opening 43 is formed at the upper edge of the main bag portion 30 including the fastener 100. The first opening 43 has a function of accommodating the contents in the internal space 29 in a state where the bag 20 is separated into the main bag portion 30 and the sub bag portion 70.

The bottom gusset 50 supports the bag body 40. A two-dot chain line XB in the figure indicates a boundary line between the bottom gusset 50 and the bag body 40.
The protruding portion 60 has a shape that protrudes outward in the width direction from the first side portion 41. The protrusion 60 is formed including the second opening 61.

The second opening 61 has a shape protruding from the first side portion 41 outward in the width direction. The second opening 61 has a function of accommodating the contents in the internal space 29.
The auxiliary bag part 70 is formed continuously with the main bag part 30 via the cutting auxiliary part 90.

  The seal part 80 is formed by heat welding. The seal portion 80 includes a first side seal portion 81, a second side seal portion 82, an upper seal portion 83, a lower seal portion 84, and an easy-open seal portion 85.

  The first side seal portion 81 seals a portion in a predetermined range including the first side edge 25 in the bag 20. The first side seal portion 81 has a side seal upper portion 81A and a side seal lower portion 81B. The side seal upper portion 81 </ b> A and the side seal lower portion 81 </ b> B are separated from each other by the second opening 61.

The side seal upper portion 81 </ b> A seals the range from the first corner 21 to the second opening 61 in the bag 20.
The side seal lower portion 81 </ b> B seals the boundary portion between the bag main body portion 40 and the bottom gusset 50 in the second opening 61.

The second side seal portion 82 seals a portion of the bag 20 in a predetermined range including the second side edge 26. The upper seal portion 83 seals a predetermined range including the upper edge 27.
The upper seal portion 83 is formed on the upper edge 27. The upper seal portion 83 seals the fastener 100. The lower seal portion 84 seals a predetermined range portion of the bottom gusset 50 including the lower edge 28. The easy-open seal portion 85 seals two sheets forming the bag main body portion 40. The easy-open seal part 85 has an easy peel property. The easy-open seal portion 85 seals the first opening 43. The easy-open seal portion 85 is located on the inner space 29 side with respect to the fastener 100.

  The cutting assisting portion 90 functions as a portion that separates the bag 20 into the main bag portion 30 and the sub bag portion 70. The cutting assisting part 90 has a notch 91 and a guide line 92. The notch 91 functions as a trigger portion for separating the bag 20 into the main bag portion 30 and the sub bag portion 70. The notch 91 is formed in the first side edge 25 and the second side edge 26. The guide wire 92 has a function of assisting the separation of the bag 20 into the main bag portion 30 and the sub bag portion 70 from each other. The guide wire 92 is formed by subjecting the film constituting the bag 20 to a half cut process using a laser.

  The fastener 100 has a function of opening and sealing the first opening 43. The fastener 100 includes a first fastener end portion 101, a second fastener end portion 102, a high fitting strength portion 110, and a low fitting strength portion 120. The fastener 100 has a fastener length LA. The fastener length LA indicates the length from the first fastener end 101 to the second fastener end 102.

The first fastener end portion 101 is located at the inner edge of the side seal upper portion 81A. The second fastener end portion 102 is located at the inner edge of the second side seal portion 82.
The high fitting strength portion 110 indicates a portion from the first fastener end portion 101 to the first low fitting end portion 120A of the low fitting strength portion 120. The high fitting strength portion 110 indicates a portion from the second fastener end portion 102 to the second low fitting end portion 120B of the low fitting strength portion 120.

  The high fitting strength portion 110 has a first high fitting strength portion length LB and a second high fitting strength portion length LC. The first high fitting strength portion length LB indicates the length from the first fastener end portion 101 to the first low fitting end portion 120A. The second high fitting strength portion length LC indicates the length from the second fastener end portion 102 to the second low fitting end portion 120B. The first high fitting strength portion length LB and the second high fitting strength portion length LC are equal.

  The low fitting strength portion 120 has a low fitting strength portion length LD. The low fitting strength portion length LD indicates the length from the first low fitting end portion 120A to the second low fitting end portion 120B. The low fitting strength portion length LD has a length of 20% of the fastener length LA.

With reference to FIG. 3, the structure of the high fitting intensity | strength part 110 is demonstrated. In addition, in FIG. 3, illustration of the easy-open seal part 85 is abbreviate | omitted.
The high fitting strength portion 110 includes a female base 111, a normal female 112, a male base 115, and a normal male 116.

The female base 111 is thermally welded to the sheet forming the bag 20. The female mold base 111 has a function of supporting the normal female mold 112.
Usually, the female mold 112 has a saddle shape. Usually, the female mold 112 is formed integrally with the female mold substrate 111. The normal female mold 112 has an opening side normal nail 113 and a content side normal nail 114. The opening side normal nail 113 has a shape that bends toward the female substrate 111 side. The unsealing side normal nail 113 is located closer to the unsealing side of the bag 20 than the content side normal nail 114.

  The content-side normal claw 114 has a shape that bends toward the female substrate 111 side. The content-side normal claw 114 is located closer to the internal space 29 of the bag 20 than the content-side normal claw 113. The normal claw 114 on the contents side and the normal claw 113 on the opening side have a normal distance LE. The normal distance LE indicates the distance between the contents-side normal claw 114 and the unsealing side normal claw 113 in a state where the normal male mold 116 is fitted to the normal female mold 112.

The male mold base 115 is thermally welded to a sheet forming the bag 20. The male mold base 115 normally has a function of supporting the male mold 116.
Normally, the male mold 116 has an arrowhead shape. Usually, the male mold 116 is formed integrally with the male mold base 115. The normal male mold 116 has a normal support part 117 and a normal tip part 118. Usually, the support portion 117 is formed continuously with the male base material 115. The normal support portion 117 has a shape protruding from the male base material 115 toward the female base material 111. The normal support portion 117 has a proximal end boundary portion 117A and a distal end boundary portion 117B. The base end boundary portion 117 </ b> A indicates a boundary portion between the normal support portion 117 and the male base material 115. The tip boundary portion 117B indicates a boundary portion between the normal support portion 117 and the normal tip portion 118. The normal support part 117 has a normal support part length LF. The normal support portion length LF indicates the distance between the proximal end boundary portion 117A and the distal end boundary portion 117B.

  The normal tip portion 118 is formed continuously with the normal support portion 117. The normal tip portion 118 has an opening side normal claw 118A and a content side normal claw 118B. The opening-side normal claw 118A has a shape that fits with the opening-side normal claw 113 of the normal female mold 112. The content-side normal claw 118B has a shape that fits with the content-side normal claw 114 of the normal female mold 112. The fitting strength between the contents-side normal claw 118B and the contents-side normal claw 114 is larger than the fitting strength between the opening-side normal claw 118A and the opening-side normal claw 113. For this reason, the fastener 100 has a structure that is easier to open from the opening side than from the internal space side.

With reference to FIG. 4, the structure of the low fitting intensity | strength part 120 is demonstrated. In addition, in FIG. 4, illustration of the easy-open seal part 85 is abbreviate | omitted.
The low fitting strength portion 120 has 0% fitting strength of the high fitting strength portion 110. The low fitting strength portion 120 is formed by crushing the fastener 100 having the same configuration as that of the high fitting strength portion 110 under conditions of a predetermined pressure, a predetermined time, and a predetermined temperature. The low fitting strength portion 120 has a female base 121, a modified female 122, a male base 125, and a modified male 126.

The female base material 121 is thermally welded to a sheet forming the bag 20. The female mold base 121 has a function of supporting the deformed female mold 122.
The deformed female mold 122 has a bowl shape. The deformed female mold 122 is formed integrally with the female mold base 121. The deformed female mold 122 has an unsealing-side deformed claw 123 and a contents-side deformed claw 124. The opening-side deforming claw 123 has a shape that bends toward the female substrate 121 side. The opening side deformation claw 123 is located on the opening side of the bag 20 with respect to the content side deformation claw 124.

  The content-side deformation claw 124 has a shape that bends toward the female substrate 121 side. The content-side deformation claw 124 is located closer to the inner space 29 of the bag 20 than the content-side deformation claw 124. The content-side deformation claw 124 and the opening-side deformation claw 123 have a deformation distance LG. The deformation distance LG indicates the distance between the content side deformation claw 124 and the unsealing side deformation claw 123. The deformation distance LG is larger than the normal distance LE shown in FIG.

The male mold substrate 125 is thermally welded to the sheet forming the bag 20. The male mold substrate 125 has a function of supporting the deformed male mold 126.
The deformed male mold 126 has an arrowhead shape. The deformed male mold 126 is formed integrally with the male mold substrate 125. The deformed male mold 126 has a deformable support portion 127 and a deformable tip portion 128. The deformation support portion 127 is formed continuously with the male base material 125. The deformation support portion 127 has a shape protruding from the male base material 125 toward the female base material 121. The deformation support portion 127 has a proximal end boundary portion 127A and a distal end boundary portion 127B. The base end boundary portion 127 </ b> A indicates a boundary portion between the deformation support portion 127 and the male base material 125. A tip boundary portion 127B indicates a boundary portion between the deformation support portion 127 and the deformation tip portion 128. The deformation support part 127 has a deformation support part length LH. The deformation support portion length LH indicates the distance between the proximal end boundary portion 127A and the distal end boundary portion 127B. The deformation support portion length LH is shorter than the normal support portion length LF shown in FIG.

  The deformation tip portion 128 is formed continuously with the deformation support portion 127. The deformed tip portion 128 has an unsealing side deforming claw 128A and a content side deforming claw 128B. The opening side deformation claw 128 </ b> A has a shape that fits with the opening side deformation claw 123 of the deformed female mold 122. The opening side deformation claw 128A and the opening side deformation claw 123 have a fitting strength of 0%. The content-side deformable claw 128B has a shape that fits with the content-side deformed claw 124 of the deformed female mold 122. The content-side deformation claw 128B and the content-side deformation claw 124 have a fitting strength of 0%.

With reference to FIG. 5 and FIG. 6, the manufacturing process of the content-filled pouch 1 will be described.
The manufacturing process of the content-enclosed pouch 1 includes a first process, a second process (FIG. 5A), a third process (FIG. 5B), a fourth process (FIG. 5C), and a fifth process. (FIG. 6A), a sixth step (FIG. 6B), and a seventh step (FIG. 6C).

In the first step, the pouch 10 is manufactured.
In the second step, the periphery of the first corner 21 and the periphery of the third corner 23 of the pouch 10 are each chucked by the chuck 310 of the filling machine 300.

The pouch 10 is conveyed to the filling line in the state shown in FIG. The second opening 61 is opened by a suction cup (not shown) at a predetermined filling line position.
In the third step, the nozzle 320 is inserted into the second opening 61 as shown in FIG. The nozzle 320 fills the internal space 29 with the content 200.

  In the fourth step, as shown in FIG. 5C, the filling is completed when the predetermined amount of the content 200 is filled in the internal space 29. After the filling of the internal space 29 with the content 200 is completed, the nozzle 320 is removed from the second opening 61.

  In the fifth step, as shown in FIG. 6A, the pouch 10 is left chucked by the chuck 310 of the filling machine 300 while the periphery of the first corner 21 and the periphery of the third corner 23 of the pouch 10 are respectively chucked. 10 is conveyed to the seal processing line.

  In the sixth step, as shown in FIG. 6B, the seal device 400 sandwiches the second opening 61 at a predetermined seal processing line position. As a result, the second opening 61 is sealed.

  In the seventh step, after the end of the sealing process, as shown in FIG. 6C, the sealing device 400 releases the state where the second opening 61 is sandwiched. Thereafter, the sealing device 400 is separated from the content-filled pouch 1.

With reference to FIGS. 7-10, the usage method of the content enclosure pouch 1 is demonstrated.
As shown in FIG. 7, the bag 20 is cut into a main bag portion 30 and a sub-bag portion 70 by being cut along the guide line 92 starting from the notch 91 (hereinafter, “separated state”). ) When the bag 20 is in the separated state, the fastener 100 is opened by releasing the fitting state of the high fitting strength portion 110. Thereby, the 1st opening part 43 opens. At this time, the easy-open seal portion 85 is also peeled off.

  As shown in FIG. 8, the user puts the material 500 into the internal space 29 in a state where the first opening 43 is open. As the ingredients 500, meat, vegetables and the like are appropriately selected by the user.

  As shown in FIG. 9, in the pouch 10, the fastener 100 is resealed in a state where the contents 200 and the ingredients 500 are put in the internal space 29. The pouch 10 is heated in a microwave oven after the fastener 100 is resealed. When the content-filled pouch 1 is heated, steam is generated in the internal space 29. For this reason, in the content-filled pouch 1, the pressure of the internal space 29, that is, the internal pressure increases. As the internal pressure of the content-enclosed pouch 1 increases, a force is applied to the content-enclosed pouch 1 to separate the sheets forming the internal space 29 of the pouch 10 so as to face each other. Further, as the internal pressure of the content-enclosed pouch 1 increases, the content-enclosed pouch 1 has a force to release the fitting state of the high-fitting strength portion 110 (hereinafter referred to as “fitting release force”). ) Acts.

  The steam generated in the internal space 29 is slightly discharged to the outside through the low fitting strength portion 120 by heating the content-filled pouch 1 with a microwave oven. However, the discharge speed of the steam discharged to the outside through the low fitting strength portion 120 is extremely small as compared with the generation speed of the steam generated in the internal space 29. For this reason, the pressure of the internal space 29 rises.

  As shown in FIG. 10, in the content-filled pouch 1, the low fitting strength portion 120 is opened before the fitting release force exceeds the fitting strength of the high fitting strength portion 110. Thereby, the discharge speed of the steam discharged to the outside through the low fitting strength portion 120 exceeds the generation speed of the steam generated in the internal space 29. For this reason, the rise of the internal pressure of the content-filled pouch 1 becomes gentle, and the rise of the internal pressure eventually stops. Note that, with the opening of the low fitting strength portion 120 as a trigger, a part of the fitting state of the high fitting strength portion 110 is released.

  Referring to FIG. 11, the opening mode of fastener 100 when the ratio of the fitting strength of the low fitting strength portion to the fitting strength of the high fitting strength portion (hereinafter referred to as “strength ratio”) is changed is verified. The experimental results will be described.

  This experiment was performed by forming a low fitting strength portion in the center portion of a fastener having a fastener length of 150 mm. The high fitting strength part of this experiment has a fitting strength of 38 N / 20 mm. The high fitting strength portion indicates a portion of the fastener where the low fitting strength portion is not formed. The low fitting strength portion is formed by crushing the central portion of the fastener under conditions of a predetermined pressure, a predetermined time, and a predetermined temperature. The low fitting strength part length has 20 mm.

  When the strength ratio was 100%, that is, when the low fitting strength portion was not formed on the fastener, the fastener was opened with a loud sound due to an increase in the internal pressure of the content-enclosed pouch accompanying heating.

When the strength ratio was 95%, the fastener was opened with a loud sound due to an increase in the internal pressure of the content-enclosed pouch accompanying heating.
When the strength ratio is 70%, 80%, and 90%, the sound at the time of opening the fastener due to the increase in the internal pressure of the contents-enclosed pouch accompanying heating is slightly higher than when the strength ratio is 95% and 100%. It has become smaller.

  When the strength ratio is 0%, 30%, and 50%, the sound at the time of opening the fastener due to the increase in the internal pressure of the contents-enclosed pouch accompanying heating is such that the strength ratio is 70%, 80%, 90%, 95%, And it was smaller than that at 100%.

  As a result, an effect has been found for reducing the loudness when opening the fastener by setting the strength ratio to 90% or less. In particular, by setting the strength ratio to 50% or less, a remarkable effect was found in reducing the volume of sound when the fastener was opened.

  With reference to FIG. 12, the experimental result verified about the opening aspect of the fastener 100 when changing the ratio (henceforth "strength part length ratio") of the low fitting intensity | strength part length with respect to fastener length is demonstrated.

  This experiment was performed by forming a low fitting strength portion in the center portion of a fastener having a fastener length of 150 mm. The high fitting strength portion indicates a portion of the fastener where the low fitting strength portion is not formed. The low fitting strength portion is formed by crushing the central portion of the fastener under conditions of a predetermined pressure, a predetermined time, and a predetermined temperature. The low fitting strength portion has a fitting strength of 0 N / 20 mm.

  When the strength portion length ratio was 0%, that is, when the low-fitting strength portion was not formed on the fastener, the fastener was opened with a loud sound due to an increase in the internal pressure of the content-filled pouch accompanying heating.

When the strength portion length ratio was 5%, the noise at the time of opening the fastener due to the increase in the internal pressure of the contents-enclosed pouch accompanying heating was slightly smaller than when the strength portion length ratio was 0%.
When the strength part length ratio is 10%, 20%, and 50%, the sound at the time of opening the fastener due to the increase of the internal pressure of the contents-enclosed pouch accompanying heating is when the strength part length ratio is 0% and 5%. It became smaller compared.

  When the strength part length ratio is 70%, the sound at the time of opening the fastener due to the increase in the internal pressure of the contents-enclosed pouch accompanying heating is such that the strength part length ratio is 0%, 5%, 10%, 20% and 50%. It became smaller compared to the time. However, when the strength portion length ratio was 70%, the sealing performance of the pouch by the fastener was lowered.

  When the strength part length ratio is 80%, the sound at the time of opening the fastener due to the increase in the internal pressure of the contents-enclosed pouch accompanying heating is such that the strength part length ratio is 0%, 5%, 10%, 20%, 50%, And it was smaller than 70%. However, when the strength portion length ratio was 80%, the sealing performance of the pouch by the fastener was further lowered as compared with the case where the strength portion length was 70%.

  As a result, an effect was found for reducing the volume of the sound when the fastener was opened by setting the strength portion length ratio to 5% or more. In particular, by setting the strength portion length ratio to 5% to 70%, an effect was found to suppress the deterioration of the sealing performance of the pouch by the fastener and to reduce the loudness when opening the fastener. .

The pouch 10 has the following effects.
(1) The pouch 10 has a fastener 100. The fastener 100 has a high fitting strength portion 110 and a low fitting strength portion 120. For this reason, when the contents-enclosed pouch 1 using the pouch 10 is heated, the fitting release force that rises as the internal pressure increases is lower than the fitting strength of the high fitting strength portion 110. A mating strength of 120 is reached. For this reason, the fitting state of the low fitting strength portion 120 is released before the fitting state of the high fitting strength portion 110. Thereby, before the fitting release force reaches the fitting strength of the high fitting strength portion 110, the steam generated in the internal space 29 can be discharged to the outside. For this reason, it is possible to reduce the sound generated when the pouch 10 is opened as the internal pressure increases.

  (2) The pouch 10 has a second opening 61 in addition to the first opening 43. For this reason, the contents 200 can be put into the internal space 29 of the pouch 10 from the second opening 61 in the manufacturing process of the contents-enclosed pouch 1. For this reason, the possibility that the contents adhere to the fastener 100 during the manufacturing process of the contents-enclosed pouch 1 is reduced.

  (3) The pouch 10 has a bag 20. The bag 20 includes a bag main body 40, a bottom gusset 50, and a protrusion 60. The protrusion 60 has a second opening 61. The second opening 61 has a shape protruding from the bag body 40 toward the outside of the bag 20. For this reason, when sealing the 2nd opening part 61 in the manufacture process of the content enclosure pouch 1, the state where the chuck | zipper 310 which chucks the pouch 10 is not located on the movement locus | trajectory of the sealing apparatus 400 can be formed. For this reason, the sealing process of the 2nd opening part 61 becomes easy.

  (4) The pouch 10 has an easy-open seal part 85. The easy-open seal portion 85 seals the first opening 43. The easy-open seal portion 85 is located on the inner space 29 side with respect to the fastener 100. For this reason, when putting the content 200 into the internal space 29 of the bag 20 from the 2nd opening part 61, a possibility that the content 200 may adhere to the fastener 100 is reduced.

  The present pouch and the present content-enclosed pouch include an embodiment different from the above embodiment. Hereinafter, the modification of the said embodiment as other embodiment is shown. The following modifications can be combined with each other.

  -The fastener 100 of embodiment has the single low fitting strength part 120. FIG. However, the structure of the fastener 100 is not restricted to the content illustrated by embodiment. For example, the fastener 100 of the modified example has a plurality of low fitting strength portions 120.

  -The low fitting intensity | strength part length LD of the fastener 100 of embodiment has the length of 20% of fastener length LA. However, the low fitting strength portion length LD is not limited to the content exemplified in the embodiment. For example, the low fitting strength portion length LD of the modified example is appropriately selected from the range of 5% to 70% of the fastener length LA.

  -1st high fitting strength part length LB and 2nd high fitting strength part length LC of embodiment are equal. However, the relationship between the first high fitting strength portion length LB and the second high fitting strength portion length LC is not limited to the content exemplified in the embodiment. For example, the first high fitting strength portion length of the modified example is different from the second high fitting strength portion length. In short, the first high fitting strength portion length and the second high fitting strength portion length can be changed as appropriate.

  The low fitting strength portion 120 of the embodiment has a fitting strength of 0% of the fitting strength of the high fitting strength portion 110. However, the fitting strength of the low fitting strength portion 120 is not limited to the content exemplified in the embodiment. For example, the fitting strength of the modified low fitting strength portion 120 is appropriately selected from the range of 0% to 90% of the fitting strength of the high fitting strength portion 110.

  The low fitting strength portion 120 of the embodiment is formed by crushing the fastener 100 having the same configuration as the high fitting strength portion 110 under conditions of a predetermined pressure, a predetermined time, and a predetermined temperature. . However, the configuration of the low fitting strength portion 120 is not limited to the content exemplified in the embodiment. For example, the modified low fitting strength portion 120 is formed by separately inserting a fastener having a lower fitting strength than the high fitting strength portion 110.

  The low fitting strength portion 120 of the embodiment has a deformed female mold 122. The deformed female mold 122 has an unsealing-side deformed claw 123 and a contents-side deformed claw 124. However, the configuration of the deformed female mold 122 is not limited to the content exemplified in the embodiment. For example, the modified female mold 122 of the modified example does not have at least one of the opening side deformed claw 123 and the content side deformed claw 124.

  The low fitting strength portion 120 of the embodiment has a deformed male mold 126. The deformed male mold 126 has an opening-side deformed claw 128A and a content-side deformed claw 128B. However, the configuration of the deformed male mold 126 is not limited to the content exemplified in the embodiment. For example, the modified male mold 126 of the modified example does not have at least one of the opening side deformed claw 128A and the content side deformed claw 128B.

  The pouch 10 according to the embodiment includes an upper seal portion 83, an easy-open seal portion 85, a protruding portion 60, and a second opening portion 61. However, the configuration of the pouch 10 is not limited to the content exemplified in the embodiment. For example, the pouch 10 according to the modified example does not include at least one of the upper seal portion 83, the easy-open seal portion 85, the protruding portion 60, and the second opening portion 61.

  -Pouch 10 of embodiment has a form as a standing pouch. However, the form of 10 of the dads is not limited to the content exemplified in the embodiment. For example, the modified pouch 10 can take various forms such as a flat pouch.

  The content enclosing pouch 1 according to the embodiment includes the content 200. For the contents 200, a liquid seasoning is selected. However, the type of the content 200 to be selected is not limited to the content exemplified in the embodiment. For example, as the contents 200 included in the contents-enclosed pouch 1 according to the modification, a sterilized article such as a medical device or a baby bottle is selected.

  DESCRIPTION OF SYMBOLS 1 ... Contents enclosure pouch, 10 ... Pouch, 20 ... Bag, 21 ... 1st corner | angular part, 22 ... 2nd corner | angular part, 23 ... 3rd corner | angular part, 24 ... 4th corner | angular part, 25 ... 1st side edge , 26 ... second side edge, 27 ... upper edge, 28 ... lower edge, 29 ... internal space, 30 ... main bag part, 40 ... bag body part, 41 ... first side part, 42 ... second side part , 43 ... 1st opening part, 50 ... Bottom gusset, 60 ... Projection part, 61 ... 2nd opening part, 70 ... Secondary bag part, 80 ... Sealing part, 81 ... 1st side sealing part, 81A ... Side Upper part of seal, 81B ... Lower side seal, 82 ... Second side seal part, 83 ... Upper seal part, 84 ... Lower seal part, 85 ... Easy-open seal part, 90 ... Cut assist part, 91 ... Notch, 92 ... Guide wire, 100 ... Fastener, 101 ... First fastener end, 102 ... Second fastener end, 110 ... High fitting strength part, 111 ... Female mold Material: 112 ... Normal female mold, 113 ... Opening side normal nail, 114 ... Content side normal nail, 115 ... Male base material, 116 ... Normal male mold, 117 ... Normal support part, 117A ... Base end boundary part, 117B ... tip boundary portion, 118 ... normal tip portion, 118A ... open side normal nail, 118B ... content side normal nail, 120 ... low fitting strength portion, 120A ... first low fitting end, 120B ... second low fitting Joint end part, 121 ... Female mold base, 122 ... Deformation female mold, 123 ... Opening side deformation claw, 124 ... Contents side deformation claw, 125 ... Male mold base, 126 ... Deformation male mold, 127 ... Deformation support part 127A: Proximal boundary portion, 127B: Tip boundary portion, 128 ... Deformation tip portion, 128A ... Opening side deformation claw, 128B ... Contents side deformation claw, 200 ... Contents, 300 ... Filling machine, 310 ... Chuck, 320 ... Nozzle, 400 ... Sealing device, 500 ... Ingredients, A ... fastener length, LB ... first high fitting strength part length, LC ... second high fitting strength part length, LD ... low fitting strength part length, LE ... normal distance, LF ... normal support part length, LG ... Deformation distance, LH ... Deformation support length.

Claims (7)

An opening, and a bag comprising a sealing portion that is a portion where the edge of the opening is sealed;
A fastener provided on the bag so that the opening can be opened and closed,
The fastener includes a first portion and a second portion,
The first part is a part where a male mold and a female mold are fitted,
The second portion is a pouch where the male mold and the female mold are in contact with each other without fitting, or the male mold and the female mold are fitted with lower fitting strength than the first part . The second part is a part where the male mold and the female mold are fitted with a weaker fitting strength than the first part,
The pouch according to claim 1, wherein a ratio of the fitting strength of the second portion to the fitting strength of the first portion is greater than 0% and 90% or less . The length of the portion where the second portion in the longitudinal direction of the fastener is formed, according to claim 1 having a longitudinal length of the fastener length of 5% or more to 70% or less of the length of the fastener or 2. The pouch according to 2. The second part is any one of a pair of a crushed male mold and a crushed female mold, a pair of a crushed male mold and an uncrushed female mold, and a pair of an uncrushed male mold and a crushed female mold. The pouch as described in any one of Claims 1-3 containing these . The pouch according to any one of claims 1 to 4, wherein the pouch has an open second opening in addition to the first opening that is the opening. The pouch has a form as a standing pouch,
The bag has a bag body portion and a bottom gusset,
The bag body portion forms an internal space of the bag,
The bottom gusset supports the bag body,
The pouch according to claim 5, wherein the second opening has a shape protruding from a side portion of the bag main body toward the outside of the bag. A content-enclosed pouch comprising the pouch according to any one of claims 1 to 6, wherein a portion of the opening portion outside the fastener is sealed , and the content accommodated in the pouch.