JP5929205B2 - Pouch - Google Patents

Description

  The present invention relates to a pouch having security.

  As a packaging bag, a pouch in which peripheral edges of a synthetic resin front film and a back film are welded is used.

JP 2003-155042 A

  When the contents are coins or banknotes, in order to prevent the contents from being stolen during transportation and to be able to confirm whether or not the contents have been opened, no trace is left on the pouch. Therefore, it is required to be difficult to open.

  Therefore, it is conceivable that the pouch body is made of a material that is easily stretched and sealed with a sealing tape so that the shape of the pouch is distorted when opening is attempted. However, if the pouch body is made of an easily stretchable material, the rigidity of the pouch decreases, and the sealing tape may be crimped in a state where wrinkles or warps occur in the sealing portion of the pouch, which may result in insufficient sealing. .

  Therefore, an object of the present invention is to provide a pouch that is excellent in security and can be easily sealed, which can prevent the contents from being stolen.

The present invention relates to a pouch body formed by sealing peripheral edges of a first side film, a second side film, and a bottom film made of a resin film, excluding an opening, and a pouch body of the first side film. A double-sided pressure-sensitive adhesive tape with one side affixed across the entire width of the opening, and a release label that is detachably attached to the other side of the double-sided pressure-sensitive adhesive tape and protects the other side before sealing, A first double-sided pressure-sensitive adhesive tape comprising a first plastic sheet and a second plastic sheet, which are respectively bonded to the outer sides of the pouch body of the first side film and the second side film, over the entire width of the opening. Is a pouch in which cuts or V-shaped recesses are formed at both outer and inner edges of the opening along the entire width of the opening .

  ADVANTAGE OF THE INVENTION According to this invention, the pouch which is excellent in the security which can prevent the theft of a content, and is easy to seal can be provided.

The top view of the pouch which concerns on the 1st Embodiment of this invention. Schematic cross-sectional view along the line AA 'shown in FIG. The top view of the tape material which concerns on the 1st Embodiment of this invention The top view of the plastic sheet which concerns on the 1st Embodiment of this invention The top view of the tape material which concerns on the 1st Embodiment of this invention The expanded sectional view of the pouch concerning a 1st embodiment of the present invention. The top view of the pouch which concerns on the 2nd Embodiment of this invention. Schematic cross-sectional view along the line BB 'shown in FIG. Schematic sectional view of a pouch according to a third embodiment of the present invention The expanded sectional view of the pouch which concerns on the 3rd Embodiment of this invention. The top view of the double-sided adhesive tape concerning each embodiment of the present invention

(First embodiment)
FIG. 1 is a plan view of the pouch 100 according to the present embodiment, and FIG. 2 is a schematic cross-sectional view of the pouch 100 along the line AA ′ shown in FIG.

  The pouch 100 includes a pouch body 105 formed by sealing the peripheral portions of the first side film 101, the second side film 102, and the bottom film 103 made of a resin film except for the opening 104, Tape material 150 affixed to the inside of the pouch of the opening 104 of the side film 101, and a pouch outside of the opening 104 of the first side film 101 and the second side film 102, respectively. It consists of a first plastic sheet 121 and a second plastic sheet 122. The tape material 150 includes a strip-shaped double-sided adhesive tape 108 and a release label 151. The contents stored in the pouch 100 are not shown. Note that the pouch body 105 may be formed by using only the first side film 101 and the second side film 102 without using the bottom film 103 and sealing the periphery.

  As the first side film 101, the second side film 102, and the bottom film 103, a film obtained by laminating linear low density polyethylene on stretched nylon or polyethylene terephthalate can be used. The first plastic sheet 121 and the second plastic sheet 122 are attached to the first side film 101 and the second side film 102 over the entire width of the opening 104, respectively. As the first plastic sheet 121 and the second plastic sheet 122, for example, polyethylene terephthalate having a thickness of 250 μm can be used.

  One side of the double-sided adhesive tape 108 is affixed to the first side film 101, and the release label 151 is affixed to the other side so as to be peeled off. The release label 151 protects the other surface of the double-sided adhesive tape 108 until the pouch 100 is sealed, and prevents it from sticking to the second side film 102. The release label 151 is made of a resin film coated with a release agent or a paper layered with the resin film to facilitate peeling.

  FIG. 3 shows a plan view of the tape material 150. The release label 151 includes a protection part 152 that covers the double-sided adhesive tape 108, and a pulling margin part 153 that is connected to the center of the periphery of the protection part 152. The connecting portion between the protection portion 152 and the pulling allowance portion 153 is formed with a crease line 161, and the pulling allowance portion 153 is located outside the pouch body 105 along the crease line 161 when attached to the pouch body 105. Wrapped

  In addition, the hooking portion 153 is formed with four hook holes 154 for applying a tensile force at the time of peeling. A cut may be provided instead of the hooking hole 154.

  A cut line 155 is formed in a linear shape extending from the end edge of the protection portion 152 to the two hooking holes 154 inside the pulling allowance portion 153. The cut 155 reduces the rigidity of the pulling allowance 153. Further, a stopper notch 158 that surrounds the end and is not connected to the notch 155 is formed near the end of the notch 155.

  The double-sided pressure-sensitive adhesive tape 108 is provided with a cut 171 having a predetermined length over the entire length of each edge located on the inner side and the outer side of the opening of the pouch 100. Moreover, the adhesive force between the double-sided adhesive tape 108 and the first side film 101 and the adhesive force between the double-sided adhesive tape 108 and the second side film 102 are substantially equal.

  FIG. 4 shows a plan view of the first plastic sheet 121. The first plastic sheet 121 has a belt-like shape, and two pulling allowances 123 protrude from one side along the opening side of the pouch body 105. A hooking hole 124 is formed in the pulling margin 123. A notch 125 is provided in the corner on the front end side of one pulling allowance portion 123. The second plastic sheet 122 has the same shape as the first plastic sheet 121.

  The sealing operation of the pouch 100 will be described. First, the opening 104 side of the pouch 100 is inserted into a predetermined part of the machine. If the positioning is properly performed, the claw of the machine is hooked and attached to the hook holes 124 of the pulling portions 123 of the first plastic sheet 121 and the second plastic sheet 122. Further, another claw of the machine is hooked and attached to the hooking hole 154 of the pulling allowance portion 153 of the release label 151 of the tape material 150. Next, the machine pulls away the first plastic sheet 121 and the second plastic sheet 122 by a predetermined distance, and pulls the pulling allowance section 153 with the opening 104 of the pouch 100 opened, so that the protection section 152 is placed on both sides. Peel from the adhesive tape 108. Thereafter, the second side film 102 is pressure-bonded to the double-sided adhesive tape 108 to seal the opening 104.

  The first plastic sheet 121 and the second plastic sheet 122 give the opening 104 a certain rigidity. Thereby, during the above-described sealing operation, the first side film 101 and the second side film 102 are not wrinkled or warped, and the smoothness is maintained. Therefore, over the entire width of the opening 104, Reliable sealing can be easily performed.

  FIG. 5 shows how the release label 151 is peeled off. The pulling force applied to the hooking hole 154 is transmitted to the connecting portion between the protection portion 152 and the pulling allowance portion 153. The cut 155 extending between the catch holes 154 reduces the rigidity in the vicinity of the cut 155 of the release label 151, facilitates displacement by the pulling force, and concentrates the pulling force. Therefore, the vicinity of the cut 155 becomes the peeling start position, and then the peeling progress line 160 advances. Further, the stopper cut 158 prevents the pulling force from being concentrated on the end of the cut 155 on the pulling margin 153 side, thereby preventing the end of the cut 155 from being torn.

  A crease line may be formed on the release label 151 instead of the cut line 155. Further, the shape and number of cut lines and crease lines can be variously configured. The material, shape, and the like of the release label 151, the double-sided adhesive tape 108, the first plastic sheet 121, and the second plastic sheet 122 can be variously modified.

  FIG. 6 shows a state of a cross section of the opening 104 when opening the sealed pouch 100 is attempted. FIG. 6A shows a state where the release label 151 is peeled off and the pouch 100 is sealed with the double-sided adhesive tape 108. When the outer peripheral edges of the opening 104 of the first side film 101 and the second side film 102 are pulled away from each other, they are separated by the notch 171 on the outer side of the opening 104 of the double-sided adhesive tape 108. Each edge is peeled off from one of the first side film 101 and the second side film 102 and remains on the other. Since the adhesive force between the double-sided pressure-sensitive adhesive tape 108 and the first side film 101 and the adhesive force between the double-sided pressure-sensitive adhesive tape 108 and the second side film 102 are substantially equal, all of the respective edges are the first side surface. It is extremely difficult to peel off from only one of the film 101 and the second side film 102 and leave only on the other. If the pulling is continued, as shown in FIG. 6B, the double-sided pressure-sensitive adhesive tape 108 is between the edge left on the first side film 101 and the edge left on the second side film 102. , Breaking from the tip of the notch 171. Thereby, the trace of opening remains in the pouch 100.

  Further, even if the insides of the openings 104 of the first side film 101 and the second side film 102 are pulled in the direction in which they are separated from each other, similarly, as shown in FIG. Then, it breaks from the tip of the cut 171 between the edge left on the first side film 101 and the edge left on the second side film 102. Thereby, the trace of opening remains in the pouch 100.

  As described above, when the pouch 100 is opened, a trace remains, so it can be confirmed whether or not the pouch 100 has been opened, and the contents can be prevented from being stolen or falsified to improve security.

(Second Embodiment)
FIG. 7 is a plan view of the pouch 200 according to the present embodiment, and FIG. 8 is a schematic cross-sectional view of the pouch 200 along the line BB ′ shown in FIG.

  In the pouch 200 according to the first embodiment, the pouch 200 includes a first resin film 106 and a second resin in which the first side film 101 and the second side film 102 are sealed inside the opening 104. Each has a film 107. The double-sided adhesive tape 108 of the tape material 150 is affixed to the area | region where the 1st resin film 106 of the 1st side film 101 was sealed.

  The first resin film 106 and the second resin film 107 are overlaid on the first side film 101 and the second side film 102 over the entire width of the opening 104, respectively, and the peripheral part is the first side film 101. The side film 101 and the second side film are sealed. The hatched portion shown in FIG. 7 and the thick line portion shown in FIG. As a result, the film is doubled around the opening 104, thereby increasing the rigidity of the opening 104 and performing a more stable sealing operation.

(Third embodiment)
FIG. 9 is a schematic cross-sectional view of the pouch 300 according to the present embodiment. In the pouch 200 according to the second embodiment, the pouch 300 is provided on the first resin film 106 and the second resin film 107, respectively, on the outer side of the opening 104 from the double-sided adhesive tape 108. Perforations 109 and 110 are formed along the direction. Since the plan view is the same as that of the pouch 200, it is omitted.

  FIG. 10 shows the state of the cross section of the opening 104 when opening the pouch 300 is attempted. FIG. 10A shows a state where the release label 151 is peeled off and the pouch 300 is sealed with the double-sided adhesive tape 108. The cutting strength of the perforations 109 and 110 is weaker than the adhesive strength of the double-sided adhesive tape 108. When the outer peripheral edge portions of the first side film 101 and the second side film 102 are pulled away from each other in the direction of separating from each other, the cutting strength of the perforations 109 and 110 is weaker than the adhesive strength of the double-sided pressure-sensitive adhesive tape 108. Therefore, first, as shown in FIG. 10B, one or both of the perforations 109 and 110 break, and then the double-sided adhesive tape 108 breaks. Thereby, when the outer peripheral edge part of the opening part 104 is pulled in the direction which separates mutually, the trace of opening can be left more clearly.

  Further, the perforations 109 and 110 may be formed inside the opening 104 from the double-sided adhesive tape 108. In this case, when the insides of the openings 104 of the first side film 101 and the second side film 102 are pulled in a direction in which they are separated from each other, either or both of the perforations 109 and 110 are broken, and then the double-sided adhesive tape 108. Breaks. Thereby, when the inside of the opening part 104 is pulled in the direction of separating from each other, the trace of opening can be left more clearly.

  Further, the perforations 109 and 110 may be formed in a region where the double-sided adhesive tape 108 of the opening 104 is attached. In this case, even if it is pulled from either the inner side or the outer side of the opening 104, either or both of the perforations 109 and 110 and the double-sided adhesive tape 108 are broken. Can leave.

  In each embodiment, the double-sided pressure-sensitive adhesive tape 108 has a notch 171 as described above, but the inclination changes discontinuously over the entire length of each edge, as shown in FIGS. 11 (a) and 11 (b). It is good also as what has the V-shaped recessed part 172 which formed the location. A portion formed in the recess 172 where the inclination changes discontinuously tends to be a break start position due to concentration of the pulling force. In addition, the notches 171 and the recesses 172 are formed on both the outer and inner sides of the opening 104 of the pouch 100, so that the double-sided adhesive tape 108 is broken even if pulled from either side, leaving a trace of opening. Moreover, along the line connecting the notches 171 on both sides or the tips of the recesses 172, the breakage can be advanced at a short distance to facilitate breakage. However, it may be formed on only one of them according to the combination or positional relationship with the perforations 109 and 110 in the third embodiment. Moreover, the double-sided adhesive tape 108 may form both the cut 171 and the recess 172.

  INDUSTRIAL APPLICATION This invention can be utilized for the pouch etc. which seal an opening part by sealing with a double-sided adhesive tape.

100, 200, 300 Pouch 101 First side film 102 Second side film 103 Bottom film 104 Opening part 105 Pouch body 106 First resin film 107 Second resin film 108 Double-sided adhesive tape 109, 110 Perforation 121 First 1 plastic sheet 122 second plastic sheet 123 pulling margin 124 hooking hole 125 notch 150 tape material 151 release label 152 protection portion 153 pulling margin 154 hooking hole 155 cut 158 stopper cut 160 peeling progress line 161 folding ruled line 171 Notch 172 recess

Claims (4)

A pouch body formed by sealing the peripheral portions of the first side film, the second side film, and the bottom film made of a resin film, excluding the opening,
A double-sided pressure-sensitive adhesive tape having one surface attached to the inner side of the pouch body of the first side film over the entire width of the opening;
A release label that is detachably attached to the other surface of the double-sided pressure-sensitive adhesive tape and protects the other surface before sealing,
A first plastic sheet and a second plastic sheet, respectively, pasted over the entire width of the opening on the outer side of the pouch body of the first side film and the second side film;
The double-sided pressure-sensitive adhesive tape has a notch or V-shaped recess formed at both outer and inner edges of the opening along the entire width of the opening . A pouch body formed by sealing the peripheral portions of the first side film, the second side film, and the bottom film made of a resin film, excluding the opening,
One surface is affixed to the inner side of the pouch body of the first side film over the entire width of the opening, and the inner side of the pouch body of the second side film is extended to the entire width of the opening. other surfaces are bonded, a double-sided adhesive tape for sealing said opening,
A first plastic sheet and a second plastic sheet, respectively, pasted over the entire width of the opening on the outer side of the pouch body of the first side film and the second side film;
The double-sided pressure-sensitive adhesive tape has a notch or V-shaped recess formed at both outer and inner edges of the opening along the entire width of the opening .   The first side film and the second side film respectively have a first resin film and a second resin film sealed on the inner side of the pouch body over the entire width of the opening. The pouch according to 1 or 2.   At least one of the first resin film and the second resin film is formed with a perforation having a cutting strength weaker than the adhesive strength of the double-sided pressure-sensitive adhesive tape along the width direction of the opening. The pouch according to claim 3.

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