JP6052366B2 - Packaging bag - Google Patents

Description

  The present invention relates to a packaging bag for packaging a product having a certain shape, which can be easily opened and the contents can be taken out.

  Packaging bags made of laminated materials mainly made of plastic film are products with a certain three-dimensional shape, such as confectionery, stationery, and packaging that extrudes drugs, especially tablets and capsules (Press Through Pack). Used when packaging. For example, examples of the shape of the packaging bag include shapes such as a gusset shape, a flat pouch shape, and a back pasting shape.

  In such a packaging bag, various devices are made to facilitate opening. As a method for facilitating the opening, for example, there is a method in which a notch such as a V-shape, U-shape, or I-shape is provided in a seal portion of a packaging bag so that the notch can be easily opened as a starting point of opening. . There is also a method in which a large number of fine holes are provided in the sealing portion of the packaging bag so that the packaging bag can be easily opened from any position.

JP-A-8-217094

  However, when the packaging bag according to the above configuration accommodates contents having corners, such as an object whose outer shape is formed in a rectangular parallelepiped shape, the cut piece is caught on the corners of the contents when the packaging bag is opened, The opening operation may not be performed smoothly.

  In view of the circumstances as described above, it is an object of the present invention to provide a packaging bag that can be smoothly opened.

  The packaging bag according to the first aspect of the present invention has a front surface, a back surface, and a side surface, and has two seal portions formed in a strip shape along the first direction at both ends, and the outer shape is a rectangular parallelepiped shape. A packaging bag main body for containing the contents so that the first surface of the contents formed on one side faces the seal part, and a notch for opening provided on the end side of the one seal part, An opening auxiliary line provided on a side surface of the packaging bag body and guiding a cutting direction of the packaging bag body at the time of opening, and the contents are lateral in the first direction with respect to the first surface and the first surface. The packaging bag body is cut along the chamfered portion between the notch portion and the opening assisting line, and one seal portion side. To the other seal part.

  According to the present invention, the contents have a chamfered portion at the corner, and the gap between the cutout portion and the opening assist line in the packaging bag body is formed so as to be cut along the chamfered portion. When the packaging bag body is opened, a smooth opening operation is possible without the cut pieces being caught by the corners of the contents.

In the above packaging bag, the opening assist line is formed in parallel with a second direction orthogonal to the first direction.
According to this configuration, since the opening assist line is parallel to the second direction orthogonal to the first direction, the packaging bag body can be cut in a direction orthogonal to the direction of the seal portion. Thereby, it becomes possible to perform an opening operation efficiently.

In the above packaging bag, a plurality of opening assist lines are formed in parallel to the side surface with a predetermined interval.
According to this configuration, since the plurality of opening assist lines are formed in parallel at a predetermined interval, it is possible to prevent the cut piece of the packaging bag body from being tapered. At least one of the plurality of opening assist lines is provided on the front side on the side surface, and at least one other of the plurality of opening assist lines is provided on the back side on the side surface. It may be.

  In the above packaging bag, it is preferable that the opening assist line is provided over substantially the entire length of the side surface from one seal part to the other seal part. Moreover, the opening assistance line may be provided on the side surface other than the front surface and the boundary between the back surface and the side surface. The packaging bag body is composed of a laminate including at least an outer layer film and a barrier layer provided on the inner side thereof, and the opening assist line is a laminate so that the processing depth is within the thickness of the outer layer film. It may be provided from the outside to the inside. Furthermore, the end side of the seal part may be formed in a serrated shape in which crests and troughs are repeatedly arranged a plurality of times, and the position of the notch may start from the trough of the serrated teeth.

  In the packaging bag, the chamfered portion may have a rounded shape. In this case, the diameter of the chamfered portion is preferably 2 mm or more and 10 mm or less. Further, the chamfered portion may have a planar shape. The contents may have a configuration in which a plurality of press-through packs are stacked. The packaging bag body may include layers of polyethylene terephthalate, aluminum, and heat sealable resin.

  According to the present invention, it is possible to provide a packaging bag that can be smoothly opened.

The perspective view which shows the whole structure of the gusset packaging bag which concerns on embodiment of this invention. The perspective view which shows the structure of the PTP package body accommodated in the packaging bag which concerns on this embodiment. The perspective view which shows the structure of the PTP laminated body accommodated in the packaging bag which concerns on this embodiment. The figure which shows the state in which the PTP laminated body was accommodated in the gusset packaging bag which concerns on this embodiment. The perspective view which shows a state when the gusset packaging bag which concerns on this embodiment is opened.

Hereinafter, the packaging bag which concerns on embodiment of this invention is demonstrated using drawing.
FIG. 1 is a diagram illustrating a configuration of a gusset packaging bag 100 which is an example of a packaging bag according to the present embodiment. Hereinafter, the configuration will be described by taking a gusset packaging bag as an example. However, the idea of the present invention is not limited to a gusset packaging bag, and can be applied to a flat pouch-shaped packaging bag and a back-pasted packaging bag. .

  As shown in FIG. 1, the gusset packaging bag 100 is manufactured by sealing a laminated film mainly composed of plastic. This gusset packaging bag 100 has a back seal 5 in which the ends of the laminated film are sealed. The gusset packaging bag 100 has a front surface 1 opposite to the back seal 5, a back surface 2 on which the back seal 5 is provided in the center, and left and right side surfaces 3. In addition, the upper and lower ends of the gusset packaging bag 100 are sealed in the left-right direction (one direction) (first seal portion 9 and second seal portion 8). Such a gusset packaging bag 100 is called a so-called side gusset type bag.

  The first seal portion 9 and the second seal portion 8 are sealed with the left and right side surfaces 3 folded. The folded portion 31 is sealed in a state where the laminated film is quadrupled. A portion (center portion) sandwiched between the left and right folded portions 31 is sealed in a state where the laminate film is doubled. In this state, the contents are stored, and the first seal portion 9 is sealed in the same manner as the second seal portion 8.

  Since this gusset packaging bag 100 has a gusset, the cross section is a square tube. For this reason, it is compact but suitable for packaging large products and products having a certain size with a certain thickness. The gusset packaging bag 100 of this embodiment is a product having a certain three-dimensional shape, such as press-through pack packaging (Press Through Pack: hereinafter referred to as PTP packaging) for extruding confectionery, stationery, pharmaceuticals, in particular tablets and capsules, for example. Can be packaged.

  In the present invention, as a film used as an outer layer, since it becomes a basic material constituting a packaging bag, for example, a polyester film, a polyamide film, a polypropylene film, a polycarbonate film, a cellophane film, or the like can be used. Further, since the synthetic resin film used as the outer layer is generally printed on the inner layer side of the synthetic resin film, the synthetic resin film used as the outer layer is printable. Therefore, a stretched film stretched in the biaxial direction is preferable.

  Since it is also used for gussets, when heating the innermost layer heat-sealable resin to melt, it is also necessary that the heat does not melt the outer layer resin. A stretched film that maximizes crystallization is also preferred because it needs to be a film that can withstand this high temperature. Among them, a biaxially stretched film of polyethylene terephthalate is particularly good, and a good result is obtained even with polyethylene terephthalate using a recycled resin.

  The thickness of the film may be a thickness that can be kept to the minimum necessary for strength, rigidity, etc. as a basic material, and it is also necessary to have a thickness that can be easily torn when notched, so About 25 μm is appropriate.

  Further, an inorganic vapor deposition layer such as aluminum, silicon oxide, aluminum oxide, indium oxide, tin oxide, zirconium oxide or the like is formed inside the film.

  Such a vapor deposition layer imparts barrier properties such as moisture and oxygen to the packaging material, and further improves cutability. In such an inorganic deposition process, the outer layer base material is advantageously a biaxially stretched polyester film having heat resistance and the like.

  Instead of the above vapor deposition layer, metal foil, for example, metal foil such as aluminum, iron, copper, tin, or polyolefin such as polyethylene terephthalate, polyamide, polyethylene, polypropylene, polyvinyl chloride, polycarbonate, polyvinyl alcohol, ethylene-propylene Films made by depositing inorganic materials such as aluminum, silicon oxide, aluminum oxide, indium oxide, tin oxide and zirconium oxide on films such as copolymers, saponified ethylene-vinyl acetate copolymers, or films such as polyvinylidene chloride Or paper can be used, and these may be used alone or in combination of two or more.

  By providing these films in the intermediate layer, gas barrier properties, water vapor barrier properties, mechanical strength, bending resistance, puncture resistance, impact resistance, wear resistance, cold resistance, heat resistance, chemical resistance, light shielding It is possible to improve properties and prevent deterioration of contents.

  Next, a resin having a heat seal property that melts and fuses the innermost layer to each other is used. For example, high pressure method low density polyethylene, linear low density polyethylene, medium density polyethylene, high density polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, ionomer resin, ethylene-acrylic acid copolymer , Ethylene-acrylic acid ester copolymer, ethylene-methacrylic acid copolymer (EMMA), and the like.

  These may be used alone or in admixture of two or more, or may be multilayered, or a resin and a sheet formed from these may be used. As thickness, 15-100 micrometers is desirable and 30-50 micrometers is more preferable.

  Examples of the film adhesion method include known methods such as a wet lamination method, a dry lamination method, a non-solvent dry lamination method, a hot melt lamination method, an extrusion lamination method, and a sandwich lamination method using the extrusion lamination method. Can be used.

  Each end side of the first seal part 9 and the second seal part 8 of the gusset packaging bag 100 is formed in a serrated shape in which a crest and a trough are repeatedly arranged a plurality of times. In the configuration in which the short sides of the first seal portion 9 and the second seal portion 8 are formed in a jagged shape, the position of the opening notch 6 can start from the valley portion of the jagged teeth. In this case, the gusset packaging bag 100 can be easily cut.

  In addition, the position of the notch 6 for opening can be provided, for example in the seal part of the 2nd seal part 8 and the 1st seal part 9, and between the back seal 5 and the side surface deepest part 32. FIG. The side surface deepest portion 32 is a folded portion of the folded portion 31. This portion is closest to the back seal 5 in the folded portion 31. At the position of the opening notch 6, the laminated body is doubled and sealed, and resistance to start to tear is reduced. The opening notch 6 may be provided in either the second seal portion 8 or the first seal portion 9 or both.

  As the shape of the notch 6 for opening, in addition to the configuration using a part of the above-described serrated shape, for example, an arbitrary shape such as a V shape or a shape with a cut line as an I shape can be used. Can be used. The entire major film or laminate, such as the outer layer, is partially cut only at the edges so that it can be easily cleaved.

  An opening assisting line 7 is formed on at least one of the front surface 1 and the back surface 2. The opening assist line 7 is provided from the first seal portion 9 to the second seal portion 8, for example, in parallel with the back seal 5. The opening assist lines 7 are arranged in a plurality of rows in the longitudinal direction (one direction) of the first seal portion 9 and the second seal portion 8. The opening assist line 7 may be provided only on the front surface 1, may be provided only on the back surface 2, or may be provided on both the front surface 1 and the back surface 2. The opening assist line 7 is provided between the opening notch 6 and the boundary 33 when viewed in the sealing direction (left-right direction) of the first seal portion 9 or the second seal portion 8.

  There are no particular restrictions on the line width or number of the opening assisting lines 7, but the opening is made in such a manner that the deepest part 32 of the fold 3 is not left in the middle of opening, but is connected to the member to be cut off. By clearly defining the position of the opening assisting line 7, the opening assisting line 7 is torn linearly along the opening assisting line 7, or hit against the contents, and the tear is transferred to the outer opening assisting line 7.

  An opening assist line 17 is formed on the side surface 3. The opening assist line 17 is formed in the flared portion 3 a of the side surface 3. The opening assist line 17 is formed along the vertical direction (the direction from the first seal portion 9 to the second seal portion 8). A total of two opening assist lines 17 are formed in parallel, one on the front surface 1 side and one on the back surface 2 side.

  As a processing method of the opening assist lines 7 and 17, a method of pressing a metal blade directly against a packaging material or a laser machine such as a carbon dioxide laser, a YAG laser, or an excimer laser having a continuous or pulse oscillation type is used. The method of processing is mentioned. In the case of a method using a metal blade, it is desirable to perform simultaneous processing with printing, and in the case of a method using a laser, it is desirable to introduce it at the time of slitting.

  The processing depth of the opening assist lines 7 and 17 is basically within the thickness of the outer layer film, but is 30% or more and less than 90%, preferably 40% to 70% of the total thickness of the laminate. Process.

  The shape to be processed by the opening assist lines 7 and 17 is arbitrary such as I-shaped, C-shaped, U-shaped, V-shaped, etc. The shape can be used. In particular, a C-shape or V-shape is preferable.

  However, in a portion away from the boundary 33 with the side surface 3, such as in the vicinity of the notch, the shape may be a square or a shape opposite to the square. In this case, the position of the opening notch 6 is processed only in one of the upper side and the lower side.

  Moreover, since the opening notch 6 is provided between the back sticking 5 and the deepest part 32 of the upper and lower seal portions of the packaging bag, the place where the opening is started becomes a portion where two laminates overlap each other. In addition to being able to be opened, it is possible to provide a packaging bag that is easy to open because it allows a wide area to be grasped at the time of opening.

  In the present invention, since the opening notch 6 can be used as a trigger to remove all the folded portions on the side surfaces, it is possible to provide a wide opening and to obtain an advantage that the contents can be easily taken out.

  As a content accommodated in said gusset packaging bag 100, a PTP package etc. are mentioned. FIG. 2 shows the configuration of the PTP package 200. As shown in FIG. 2, the PTP package 200 includes a sheet 201, a storage unit 202, and an aluminum cover 204. The sheet 201 is formed in a rectangular shape, and has a rounded corner portion 201a. The accommodating part 202 accommodates granular materials 203 such as tablets, ramunes, and chocolates. In this configuration, the granular material 203 can be taken out by breaking the aluminum cover 204 and pushing out the accommodating portion 202.

FIG. 3 is a diagram showing a state in which a plurality of PTP packages 200 are stacked.
As shown in FIG. 3, the PTP package 200 is accommodated in the gusset packaging bag 100 in a state where, for example, four sheets are stacked. At this time, the three PTP packages 200 are stacked such that the sheets 201 are stacked on the storage unit 202, but the fourth PTP package 200 is stacked so that the storage units 202 are stacked. The PTP laminate 300 of the PTP package 200 formed in this way is formed in a rectangular parallelepiped shape as an outer shape.

FIG. 4 is a view showing a state in which the PTP laminate 300 is accommodated in the gusset packaging bag 100.
As shown in FIGS. 3 and 4, the PTP laminate 300 includes a first surface 301 facing the first seal portion 9 of the gusset packaging bag 100 and a first surface 301 formed laterally with respect to the first surface 301. It has two surfaces 302 and corner portions 303 formed between the first surface 301 and the second surface 302. In addition, the said PTP laminated body 300 can be set as the structure which has a dimension of 80 mm x 35 mm x 15 mm as an example.

  The corner portion 303 is a portion corresponding to the corner portion 201 a of the sheet 201 in the PTP package 200. The corner portion 201a has a rounded shape. Therefore, also in the PTP laminated body 300 in which the PTP package 200 is laminated, the corner portion 303 has a rounded shape. Thus, the PTP laminate 300 has a configuration in which the corner portion 303 is chamfered (in this case, round chamfering).

  Also, the PTP laminate 300 shown in FIG. 4 is accommodated so as to be in close contact with the gusset packaging bag 100. Although not shown in FIG. 4, for example, the surface configuration (unevenness or the like) of the PTP laminate 300 may be closely attached to the surface of the gusset packaging bag 100 and accommodated. By accommodating in this way, the PTP laminated body 300 can be accommodated efficiently, suppressing the usage-amount of the laminated body film which comprises the gusset packaging bag 100 as much as possible.

  On the other hand, in the configuration in which the PTP laminated body 300 is accommodated inside the gusset packaging bag 100 and accommodates, for example, an angular content, when the gusset packaging bag 100 is opened, It may get caught in the corner. In this case, it becomes difficult to perform the opening operation smoothly.

  On the other hand, in this embodiment, the corner | angular part 303 formed between the 1st surface 301 and the 2nd surface 302 among the PTP laminated bodies 300 has a rounded shape. For this reason, the gusset packaging bag 100 is formed such that the gap between the opening notch 6 and the opening assisting line 17 is cut along the corner 303. Therefore, when opening the gusset packaging bag 100 from the opening notch 6, the adhesion between the PTP laminate 300 and the gusset packaging bag 100 also works, and the gusset packaging bag 100 is rounded along the corners 303. It is cut smoothly so that it becomes a sliced piece. Thereby, the opening operation | movement of the gusset packaging bag 100 will be performed smoothly. In addition, if the sheet | seat 201 is the structure which elastically deforms flexibly like the PTP package 200, opening operation can be performed more smoothly.

  Further, the gusset packaging bag 100 is cut along the corner portion 303, whereby the cut portion is guided to the opening assist line 17. Thereby, it can cut | disconnect along the opening assistance line 17, as shown in FIG. In the present embodiment, since two opening assist lines 17 are formed in parallel along the cutting direction, the cutting piece 102 can be prevented from being tapered. Thereby, since it can open greatly from the 1st seal | sticker part 9 side of the gusset packaging bag 100 to the 2nd seal | sticker part 8 side, the content (PTP laminated body 300, PTP package 200) becomes easier to take out.

The technical scope of the present invention is not limited to the above-described embodiment, and appropriate modifications can be made without departing from the spirit of the present invention.
For example, in the above embodiment, the PTP laminate 300 has been described as an example of the contents accommodated in the gusset packaging bag 100, but the present invention is not limited to this, and other contents may be used. .

  Moreover, in the said embodiment, although it was the structure chamfered (round chamfering) so that the corner | angular part (for example, corner | angular part 303) of the content had a round shape, it is not restricted to this, A corner | angular part is not limited. It may be a case where the portion is chamfered to have a planar shape. As such a case, the structure etc. which the corner | angular part of the content is formed in an obtuse angle can be mention | raise | lifted, for example.

  Moreover, although the cut part along the corner | angular part 303 was mentioned as an example and demonstrated in the said embodiment, the structure guided to the opening assistance line 17 of the side surface 3 was mentioned as an example, but it is not restricted to this. For example, a configuration in which a cut portion along the corner 303 is cut along the boundary 33 may be employed. In this case, the boundary 33 becomes an opening assist line. Moreover, the structure in which the opening assistance line 17 was separately formed in the boundary 33 may be sufficient.

  Examples of the present invention will be described in detail below, but the present invention is not limited to the examples.

<Gazette packaging bag>
First, four rows of cross-shaped perforations in the flow direction of a biaxially stretched polyethylene terephthalate (PET) film having a thickness of 12 μm and a width of 720 mm as an outer layer, and the width of the perforation on the front surface and the back surface is 7 mm. Was provided. Thereafter, an anchor coat layer was applied to the surface of the PET film, and an aluminum foil having a thickness of 9 μm and a width of 700 mm was bonded by a sand lamination method using a low-density polyethylene film having a thickness of 15 μm as an adhesive layer.

Thereafter, an anchor coat layer was applied to the surface of the aluminum foil, and a laminated body was obtained by laminating a low density polyethylene film having a thickness of 30 μm and a width of 700 mm of 0.94 g / cm ³ by extrusion coating. . Subsequently, a gusset packaging bag having a back seal width of 10 mm and a gusset folding width of 5 mm was produced. As the contents, 3 sheets of PTP packaged products containing 10 tablets were put, and the upper end was sealed. In this way, a gusset packaging bag in which opening assist lines 7 and 17 were provided in advance was produced.

<Evaluation method>
Each of the following contents was accommodated in the gusset packaging bag, and the opening notch 6 of the seal portion 9 was gripped and cut, and the opening property of the gusset folded portion was subjected to sensory evaluation. At this time, when the opening was smoothly performed along the opening assist lines 7 and 17, the evaluation was “◯” or “◎” (two-step evaluation, where “◎” indicates that the evaluation is higher than “◯”). Moreover, it was set as x or (triangle | delta (it shows that evaluation is lower than (triangle | delta)) compared with (triangle | delta)) when a section | slice was caught in the corner | angular part of the content, and opening was not performed smoothly.

<Example 1>
A block-shaped confectionery having a thickness of 15 mm and a diameter corresponding to the corner portion 303 of 3 mm was accommodated in the gusset packaging bag. After opening, it was smoothly opened along the opening assist line.

<Example 2>
A block-shaped confectionery having a thickness of 15 mm and a diameter corresponding to the corner portion 303 of 5 mm was accommodated in the gusset packaging bag. After opening, it was smoothly opened along the opening assist line.

<Example 3>
A PTP laminate having a thickness of 20 mm and a diameter corresponding to the corner portion 303 of 5 mm was accommodated in the gusset packaging bag. After opening, it was smoothly opened along the opening assist line. Since the corners of the contents were elastically deformed flexibly, it was easier to open.

<Example 4>
A PTP laminate having a thickness of 20 mm and a diameter corresponding to the corner portion 303 of 10 mm was accommodated in the gusset packaging bag. After opening, it was smoothly opened along the opening assist line. Since the corners of the contents were elastically deformed flexibly, it was easier to open.

<Example 5>
A plastic piece having a structure in which a portion corresponding to the corner portion 303 was cut into a flat shape was accommodated in the gusset packaging bag. After opening, it was smoothly opened along the opening assist line. It was easier to open.

<Comparative Example 1>
A block-shaped confectionery having a thickness of 15 mm and a right angle corresponding to the corner portion 303 was accommodated in the gusset packaging bag. While opening along the opening assisting line after opening, it was caught at the corner of the contents, and the packaging material of the gusset packaging bag was torn.

<Comparative example 2>
A PTP laminate having a thickness of 20 mm and a diameter corresponding to the corner portion 303 of 1 mm was accommodated in the gusset packaging bag. After opening, it was caught on the corner of the contents during opening along the auxiliary opening line, requiring force to open, and could not be opened smoothly.

  As described above, when using the gusset packaging bag of the present invention and packaging products with a certain shape, such as confectionery, pharmaceuticals and sundries with chamfered corners, when taking out the contents from the bag, Even if it hits the contents, it is cut along the shape of the corner, so that it can be opened smoothly.

  When the corners of the contents contained in the gusset packaging bag have a rounded shape, referring to Examples 1 to 5 and Comparative Example 2 above, when the diameter of the corners is 2 mm to 10 mm, It was found that smooth opening operation is possible.

In addition, the following is added about another aspect of this invention.
The packaging bag according to another aspect of the present invention is:
A packaging bag body that has a seal part formed in a strip shape along one direction, and stores the contents so that the first surface of the content whose outer shape is formed in a rectangular parallelepiped shape faces the seal part;
A notch for opening provided at the end of the seal part;
Provided in the packaging bag body, and provided with an opening assisting line for guiding the cutting direction of the packaging bag body at the time of opening,
The content has a chamfered portion at a corner formed by the first surface and a second surface disposed on one side of the first surface, and the packaging bag body includes a notch and It is formed so that it is cut | disconnected along a chamfering part between opening assistance lines.

  According to the packaging bag, the contents have a chamfered portion at the corner, and the portion between the cutout portion and the opening assist line in the packaging bag body is cut along the chamfered portion. When opening the packaging bag body, a smooth opening operation is possible without the cut pieces being caught by the corners of the contents.

In the above packaging bag, the opening assist line is formed in parallel with a second direction orthogonal to one direction.
According to this configuration, since the opening assist line is parallel to the second direction orthogonal to one direction, the packaging bag body can be cut in a direction orthogonal to the direction of the seal portion. Thereby, it becomes possible to perform an opening operation efficiently.

In the above packaging bag, the opening assist line is provided at an end portion in one direction of the packaging bag body.
According to this structure, since the opening assistance line is provided in the edge part of one direction among the packaging bag main bodies, the edge part of a packaging bag main body can be cut | disconnected in a 2nd direction. Thereby, since an opening can be formed large, the contents can be taken out more smoothly.

In the above packaging bag, a plurality of opening assist lines are formed in parallel at a predetermined interval.
According to this configuration, since the plurality of opening assist lines are formed in parallel at a predetermined interval, it is possible to prevent the cut piece of the packaging bag body from being tapered.

  In the packaging bag, the chamfered portion may have a rounded shape. In this case, the diameter of the chamfered portion is preferably 2 mm or more and 10 mm or less. Further, the chamfered portion may have a planar shape. The contents may have a configuration in which a plurality of press-through packs are stacked. The packaging bag body may include layers of polyethylene terephthalate, aluminum, and heat sealable resin.

DESCRIPTION OF SYMBOLS 1 ... Front surface, 2 ... Back surface, 3 ... Side surface, 7 ... Opening assistance line, 17 ... Opening assistance line, 31 ... Folding part (folding part of an upper and lower seal part), 32 ... Deepest side part (upper and lower seals) 3) boundary (front surface, boundary between the back surface and the folded portion), 4 ... deepest portion, 5 ... back seal, 6 ... notch for opening, 7 ... auxiliary opening for opening, 8 ... Lower end (seal part), 9 ... Upper end (seal part), 100 ... Gazette packaging bag, 200 ... PTP package, 300 ... PTP laminate, 301 ... First side, 302 ... Second side, 303 ... Corner part.

Claims (13)

A plurality of press-through pack (PTP) packaging bodies each having a sheet shape, and a packaging bag for housing a PTP laminated body whose outer shape has a substantially rectangular parallelepiped shape,
A seal portion having a front surface, a back surface, and a side surface and formed in a strip shape along the first direction is provided at both ends, and the first surface that is an end surface of the PTP laminate is provided as one of the seal portions. A packaging bag body for accommodating the PTP laminate so as to face , wherein the side surface of the packaging bag body is a surface provided so as to be along the lamination direction of the plurality of press-through pack packaging bodies. The body ,
A notch for opening provided on the edge of one of the seal parts;
Provided on the side surface of the packaging bag body, and provided with an opening assist line for guiding the cutting direction of the packaging bag body at the time of opening,
The PTP laminate has a chamfered portion at a corner formed by the first surface and a second surface disposed on the side of the first direction with respect to the first surface,
The packaging bag main body is composed of a laminate including at least an outer layer film and a barrier layer provided on the inner side thereof, and the opening assist line has a processing depth within the thickness of the outer layer film. From the outside to the inside of the laminated body, provided on the side surface other than the boundary between the front surface and the back surface and the side surface,
The packaging bag body is formed such that a space between the notch portion and the opening assisting line is cut along the chamfered portion and cut from one seal portion side to the vicinity of the other seal portion. Is a packaging bag.   The packaging bag according to claim 1, wherein the opening assist line is formed in parallel with a second direction orthogonal to the first direction.   3. The packaging bag according to claim 1, wherein a plurality of the opening assist lines are formed on the side surface at a predetermined interval.   At least one of the plurality of opening assist lines is provided on the front surface side on the side surface, and at least one other of the plurality of opening assist lines is on the back surface on the side surface. The packaging bag of Claim 3 provided in the side.   The packaging bag according to claim 3 or 4, wherein the plurality of opening assist lines are formed in parallel with each other at a predetermined interval.   The packaging opening according to any one of claims 1 to 5, wherein the opening assist line is provided over substantially the entire length of the side surface from one seal portion toward the other seal portion.   The edge of the seal part is formed in a jagged shape in which a crest and a trough are each repeatedly arranged several times, and the position of the notch starts from the trough of the serrated tooth, The packaging bag as described in any one of Claims 1-6.   The packaging bag according to any one of claims 1 to 7, wherein the chamfered portion has a rounded shape or a planar shape.   The packaging bag according to claim 8, wherein the chamfered portion has a rounded shape and a diameter of 2 mm to 10 mm.   The said packaging bag main body is a packaging bag as described in any one of Claims 1-9 containing each layer of polyethylene terephthalate, aluminum, and heat-sealable resin. A packaging bag according to any one of claims 1 to 10,
Follicle Sokarada provided with, said PTP stack accommodated in the packaging bag. A plurality of press-through pack (PTP) packages each having a sheet shape are stacked, and the outer shape thereof has a substantially rectangular parallelepiped shape, and a corner portion formed by the first surface and the adjacent second surface of the substantially rectangular parallelepiped shape. A packaging bag for containing a PTP laminate that is a chamfered portion,
The PTP laminate has a front surface, a back surface, and a side surface, and has seal portions formed in a strip shape along one direction at both ends, and the PTP laminate is between the front surface, the back surface, and the side surface. A packaging bag body , the packaging bag body is a surface provided so that the side surface of the packaging bag body is along the stacking direction of the plurality of press-through pack packaging bodies ,
A notch for opening provided in one of the seal parts;
Provided on the side surface of the packaging bag body, comprising at least two opening assisting lines for guiding the cutting direction of the packaging bag body at the time of opening,
The packaging bag body is composed of a laminate including at least an outer layer film and a barrier layer provided on the inner side, and the at least two opening assist lines have a processing depth within the thickness of the outer layer film. From the outside to the inside of the laminate so as to be provided on the side surface other than the boundary between the front surface and the back surface and the side surface,
The at least two opening assist lines are provided on the side surface so as to extend from the vicinity of one seal part to the vicinity of the other seal part at a predetermined interval, and the packaging bag body includes the notch part. A packaging bag that is formed so as to be cut along the chamfered portion between the opening assist line and the opening assist line. A packaging bag according to claim 12;
Follicle Sokarada provided with, said PTP stack accommodated in the packaging bag.

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