JP6155797B2 - Package - Google Patents

Description

The present invention is, for example, confectionery or stationery, medicines, in particular such as the type of packaging extruding such as tablets or capsules, relates certain products (contents) having a shape package packaged is more easily and reliably packaging bag The present invention relates to a package that can be opened to take out the contents.

  For example, confectionery, stationery, pharmaceuticals, especially packaging that extrudes tablets and capsules, etc., for packaging products with a certain shape, such as gussets, flat pouches, and back-pastes made of laminated materials mainly made of plastic film ( A variety of packaging bags such as “joint palm” are widely used. In addition, gusset-type packaging bags have a large capacity and can be packed efficiently, and have been used for packaging of many products in recent years.

  On the other hand, this type of packaging bag is formed so that, for example, a V-shaped or I-shaped notch (opening cutout) is provided at the bag end, and the packaging bag can be torn and opened using this notch. Yes. However, especially in the case of a gusset-type packaging bag, the side portion is folded, so that a large force is required when tearing and opening the packaging bag from the notch. In some cases, the packaging bag piece on the side to be torn can not be opened in a straight line because it hits the product of the contents, and the opening becomes small. And since a packaging bag cannot be opened so that all the side parts folded in this way may be removed, it becomes difficult to take out the product of the contents.

  On the other hand, Patent Document 1 discloses a packaging bag in which a zipper-like cut line is provided from the upper end edge to the lower end edge of the packaging material and can be opened along the cut line. Further, in the packaging bag of Patent Document 1, the cut line is provided substantially parallel to the side end of the packaging bag and on the side end side outside the center line of the packaging bag, thereby along the zipper-shaped cut line. And can be opened linearly so that the contents can be easily taken out.

JP 08-217094 A

  However, in the packaging bag disclosed in Patent Document 1, when the tear portion reaches the contents, the straight openability is hindered, and the tearing force is dispersed in an oblique direction, so that the contents can still be taken out. There was a possibility that it could not be opened with a sufficient opening area. In other words, the packaging bag may be torn diagonally due to the properties, amount, etc. of the contents.

In view of the above circumstances, the present invention is a packaging bag in which products (contents) such as confectionery, stationery, and pharmaceuticals are packaged, and the contents can be taken out more easily and reliably, that is, suitably opened. The object is to provide a possible package.

In order to achieve the above object, the present invention provides the following means.

Package of the present invention, contents and becomes a film stack comprising a plastic film formed into a bag, the front, rear, and has a side surface, follicle Sobukuro you accommodating the content in a sealed state When, wherein the packaging bag is a lack opening for cutting is provided in the bag end portion, and, between the front and from lack Oite said opening for cutting the back of to a boundary between the side surface, for the opening together are formed by providing four or more rows to the tear line upon opening sequentially slitting the packaging bag from notches parallel to each of the boundary opening auxiliary line for guiding in a desired direction, the contents while accommodating the full proportion to the volume of 3% of the spatial volume of the packaging bag obtained by subtracting the volume of the contents determined the content as a block-shaped contour of the human mass from the full volume of the packaging bag so as to be less than 10% or more Characterized in that it is formed.

In the packaging body of the present invention, it is more desirable that the laminated body of the packaging bag is formed to include at least each layer of polyethylene terephthalate, aluminum, and heat sealable resin.

In the package of the present invention, for example, when storing a product (contents) having a certain shape such as confectionery, stationery, pharmaceuticals, in particular, PTP packaging of a type that extrudes tablets or capsules, the outer shape of the contents is stored. When the packaging bag is sequentially torn from the opening notch and opened, it is torn by forming the volume ratio (space ratio) obtained by subtracting the volume obtained from the full volume of the packaging bag to be 3% or more. Desirable tear line with opening aid line more easily and securely without causing the package line to hit the contents and the tear line greatly deviates from the desired direction or damage the contents such as confectionery It is possible to open the packaging bag so as to obtain a desired opening area.

Therefore, according to the package of the present invention, opening can be performed smoothly without failing, and even a person who does not have strong fingers or arms can easily open the package. Thereby, for example, even a sick person or an elderly person can appropriately open and take out contents such as medicines from the packaging bag without getting help from surrounding people.

In the packaging body of the present invention, when the laminate is formed with at least each layer of polyethylene terephthalate, aluminum, and heat-sealable resin, the space volume ratio (spatial ratio) of the packaging bag is 3% or more. By forming the packaging bag so as to be, the tearing line can be guided more reliably in the desired direction by the opening assisting line, and the packaging bag can be opened so as to obtain a desired opening area.

It is a figure which shows the packaging bag which concerns on one Embodiment of this invention, and is a figure which shows the state which is not accommodating the content. It is a figure which shows the packaging bag which concerns on one Embodiment of this invention. It is a figure which shows the packaging bag which concerns on one Embodiment of this invention, and is a perspective view which shows the state which accommodated the content. It is a figure which shows the example of the shape of the opening assistance line of the packaging bag which concerns on one Embodiment of this invention.

  Hereinafter, a packaging bag according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4.

  First, the packaging bag of this embodiment is a product such as a PTP (Press Through Pack) package that extrudes confectionery, stationery, pharmaceuticals, tablets, capsules, etc., in particular, a product (content) having a certain shape. It is to be packaged. In the present embodiment, the description will be made assuming that the packaging bag is a gusset type packaging bag.

  First, as shown in FIG. 1, the packaging bag A of this embodiment is formed by forming a laminated film (laminate) 1 mainly composed of a plastic film into a bag shape. For example, both ends of the laminate film 1 are sealed to form a back seal 2, which is composed of a front surface 3 opposite to the back seal 2, a back surface 4 holding the back seal 2 in the center, and left and right folded portions 5. Yes.

  In addition, the packaging bag A of the present embodiment is a packaging bag in which a sealing process is performed on the upper and lower sides, a so-called side gusset type packaging bag, and as shown in FIGS. 1 and 2, the lower end (bag end portion). 6 is sealed with the left and right folded portions 5 being woven. As a result, the folded portion 51 is sealed in a state in which the laminate 1 is stacked in quadruplicate, and the portion inside the folded portion 51 is doubled and sealed.

  As shown in FIGS. 2 and 3, in this state, the contents 10 are stored, the contents 10 are stored, and the upper end (bag end portion) 7 is sealed in the same manner as the lower end 6. And the gusset-type packaging bag A formed in this way is formed into a cylindrical shape with a square cross section due to the gusset, and is compact but has a large product and a certain size with a certain thickness. It is suitable for packaging a product having a certain shape as the contents 10.

  On the other hand, in the present embodiment, for the outer layer film that is a basic material of the laminate 1 constituting the packaging bag A, for example, a plastic film such as polyester, polyamide, polypropylene, polycarbonate, and cellophane can be used. . Furthermore, since printing is often performed on the inner layer side of the film, the synthetic resin film used as the outer layer is required to have printability, and it is more preferable to use a stretched film stretched in the biaxial direction.

  Furthermore, since this synthetic resin film is also used for gussets, it is necessary that when the innermost heat-sealable resin is heated and melted, the heat does not melt the outer-layer resin. And also from the point that it is necessary to endure this high temperature, it is preferable to use a stretched film formed by maximizing crystallization.

  Furthermore, among these, it is particularly preferable to use a biaxially stretched film of polyethylene terephthalate, and even when polyethylene terephthalate using a recycled resin is used, good results regarding printability and high temperature resistance can be obtained. Note that in the case of a non-stretched film such as a polyamide-based or polypropylene-based film, there is a property that it has a large elongation and is not easily torn, so care must be taken in its application.

  In addition, the thickness of the film may be a thickness that can be held to the minimum necessary for strength, rigidity, etc. as a basic material. Moreover, it is necessary to have a thickness that can be easily cut when notching with the notch 11 described later in detail, and about 12 to 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. And also from the point of performing the vapor deposition process of such an inorganic substance, it is advantageous that an outer-layer base material is a biaxially stretched polyester film excellent in heat resistance etc.

  Furthermore, instead of the above-mentioned 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 -Films obtained by depositing inorganic substances such as aluminum, silicon oxide, aluminum oxide, indium oxide, tin oxide and zirconium oxide on films such as saponified products of propylene copolymer, ethylene-vinyl acetate copolymer, polyvinylidene chloride, etc. These films and paper can be used, and these may be used alone or in combination of two or more.

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

Further, the packaging bag A of the present embodiment has a notch 11 of a notch for opening between the seal portion (bag end portion) of the lower end 6 and the upper end 7 and between the back seal 2 and the side deepest portion 52. Is provided.
The deepest side surface 52 is a folded portion of the folded portion 51 and is closest to the back seal 2 in the folded portion 51. Further, the position of the opening notch 11 is a portion where the laminate 1 is double-sealed. For this reason, when starting to tear the packaging bag A from the notch 11 for opening, there is little resistance.

  Here, the notch 11 for opening may be provided in any one of the lower end 6 and the upper end 7, or may be provided in both. In the present embodiment, the notch shape of the opening notch 11 is V-shaped or I-shaped, but any shape such as a shape with a cut line can be used. That is, if the main film or the entire laminated body such as the outer layer is partially cut only at the end portion so that it can be easily cleaved, it is particularly necessary to limit the shape of the opening notch 11. There is no.

  Further, the packaging bag A of the present embodiment has an opening assist line for guiding the tear line in a desired direction when the packaging bag A is sequentially opened from the opening notch 11 on the front surface 3 and the back surface 4. 12 is provided.

  As shown in FIG. 4 (FIGS. 2 and 3), the shape of the opening assisting line 12 is such that the tearing direction is straightly guided regardless of whether the run-out at the time of tearing goes to the left or right. Arbitrary shapes such as a letter, a letter C, a letter U, a letter V, etc. can be adopted, and a letter C or letter V shape is particularly preferable. However, in the part away from the boundary 53 with the side surface 5 such as the vicinity of the notch 11, the shape may be a square or a shape opposite to the square. In this case, the position of the opening notch 11 is processed only in one of the upper side and the lower side.

  The processing depth of the opening assist line 12 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. As a method of processing the opening assist line 12, a metal blade is directly pressed against the packaging material, or processing is performed using a laser machine such as a carbon dioxide laser, YAG laser, or excimer laser having a continuous or pulse oscillation type. A method 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 at the time of slitting.

  Furthermore, the opening assisting line 12 of this embodiment (the cut line on the perforation) is a position between the opening notch 11 on the front surface 3 and the back surface 4 of the packaging bag A and the boundary 53 with the fold 5. It is provided in parallel with the boundary 53. Further, although there is no particular limitation on the line width and number of the opening assisting wires 12, it is connected to the member (packaging bag piece) to be cut and removed so that the deepest side surface portion 52 of the fold 5 is not left in the middle of opening. So that it can be opened.

  Furthermore, in the packaging bag A of the present embodiment, the contents 10 obtained as a block-shaped outer shape of the contents 10 from the full volume (total volume) of the packaging bags 10 in a state where the contents 10 are stored. The ratio (space ratio) of the space volume of the packaging bag A after subtracting the volume to the full volume is 3% or more.

  Specifically, as shown in FIG. 3, for example, in the case where the content 10 is formed in a state where a plurality of uneven parts such as PTP packaging are stacked, the state in which the plurality of PTP packagings are stacked is referred to as a block of blocks. Considering this, the volume of the contents 10 (apparent volume) is obtained with the outer shape of this block. In addition, when a piece of confectionery or the like is originally the content 10, the volume may be obtained from the outer shape of the block-shaped content. That is, in this embodiment, when the full volume of the packaging bag A is V1 and the volume of the contents 10 is V2, the space ratio V3 of the packaging bag A is V3 = (V1-V2) / V1 × 100 ≧ 3% A packaging bag A is formed so that

  And in the packaging bag A of this embodiment, when storing the product of the content 10 with a fixed shape, such as PTP packaging of the type which extrudes confectionery, stationery, a pharmaceutical, especially a tablet, a capsule, etc., for example, this content By forming the volume V2 obtained from the outer shape of the article 10 from the full volume V1 of the packaging bag A so that the proportion of the space is 3% or more, the packaging bag A is sequentially torn and opened from the opening notch 11. At this time, the torn packaging bag piece does not collide with the contents 10 and the tear line greatly deviates from a desired direction, or the contents 10 such as confectionery are not damaged. Thereby, it becomes possible to open the packaging bag A so that a desired opening area can be obtained by guiding the tear line in the desired direction with the opening assisting line 12 more easily and reliably.

  Therefore, it can be opened smoothly without failing to open, even if it is a person with weak fingers or arms, and can be opened easily. In addition, the contents such as medicines can be suitably opened from the packaging bag A and taken out.

  Moreover, when the laminated body 1 which comprises the packaging bag A is provided with each layer of at least polyethylene terephthalate, aluminum, and heat-sealable resin, the ratio of the space volume of the packaging bag A will be 3% or more. By forming the packaging bag A, it is possible to more reliably guide the tear line in the desired direction with the opening assisting wire 12 and open the packaging bag A so as to obtain a desired opening area.

〔Example〕
Here, the test results confirming the superiority of the packaging bag A according to the present invention will be described. In addition, although a present Example demonstrates in detail about the packaging bag A which concerns on this invention, of course, this invention is not limited to description and content of this Example.

First, in this embodiment, four rows of U-shaped through perforations (opening auxiliary lines 12) are formed in the flow direction of a biaxially stretched polyethylene terephthalate film having a thickness of 12 μm and a width of 720 mm as an outer layer of a packaging bag, front surface, After providing a back perforation width of 7 mm, an aluminum foil having a thickness of 7 μm and a width of 700 mm and a linear low-density polyethylene film having a thickness of 30 μm and a width of 700 mm and a density of 0.94 g / cm ³ are prepared. Then, lamination was obtained by an extrusion lamination method using low density polyethylene.

  Then, various contents 10 were accommodated in the packaging bag A while changing the space ratio (space ratio), and the opening suitability when opening along the opening auxiliary line 12 was confirmed.

  Specifically, as shown in Table 1, in Example 1, the packaging bag was formed so that the block-shaped confectionery was stored as the contents, and the thickness was 15 mm and the space ratio was 5%. In Example 2, the packaging bag was formed so that the block-shaped confectionery was stored as the contents, and the thickness was 15 mm and the space ratio was 10%. In Example 3, the PTP sheet was stored as the contents, and the packaging bag was formed so that the thickness was 20 mm and the space ratio was 3%. Here, as described above, the space ratio is (V1−V2) / V1 × 100 (%) where V1 is the full volume (total volume) of the packaging bag and V2 is the apparent volume of the contents 10. ). Further, in Example 3, four PTP sheets are stacked, and the space ratio is obtained as the volume V2 of the contents of the apparent outer shape (80 × 35 × 20 mm) when the four PTP sheets are stacked. That is, as shown in FIG. 3, two PTP sheets face each other so that the protruded drug containing parts face each other, and the upper drug containing part and the lower drug containing part are alternately arranged in the longitudinal direction of the PTP sheet. They were layered together. Two sets of such two PTP sheets were stacked in the thickness direction to obtain the contents 10. The contents are stored in the packaging bag in a state in which the drug storing portion is not facing outward and the planar portion of the PTP sheet is facing outward.

  On the other hand, in the comparative example 1, the packaging bag was formed so that the block-shaped confectionery was stored as the contents, and the thickness was 15 mm and the space ratio was 2%. In Comparative Example 2, a packaging bag was formed using the same contents as in Example 3 so that the thickness was 20 mm and the space ratio was 2%. In Comparative Example 3, the four PTP sheets, all of which were stacked with the drug containing part on the upper side, were used as the contents. The space ratio was 2%.

  And in Example 1 which made the block-shaped confectionery the content and made the space rate 5%, it was able to open smoothly along the opening assistance line 12 after opening start.

  Also in Example 2 in which the block-shaped confectionery was used as the contents and the space ratio was 10%, the opening could be smoothly opened along the opening assistance line 12 after the opening. Further, since the space ratio is high, the packaging bag can be easily grasped, and from this point, the opening can be easily performed.

  Even in Example 3 in which the PTP sheet was used as the content and the space ratio was 3%, the opening could be smoothly opened along the opening assisting line 12 after the opening. In addition, since the contents (the corners of the contents) have flexibility (because they are flexible), it was easy to grasp the packaging bag, and from this point it was possible to open the bag easily.

  On the other hand, in Comparative Example 1 in which block-shaped confectionery is used as the contents and the space ratio is 2%, the space ratio is small and it is difficult to grasp the packaging bag at the time of opening. Further, during the opening along the opening assisting line 12, the torn packaging bag piece collided with the corner of the contents, and the packaging bag piece was cut off. It was also confirmed that the corners of the contents were broken.

In Comparative Example 2 in which the PTP sheet is the contents and the space ratio is 2%, the contents are the same as in Example 3, but the space ratio is small, and it is difficult to grasp the packaging bag when opened. Further, during the opening along the opening assisting line 12, the torn packaging bag piece collided with the corner of the contents, and the packaging bag piece was cut off.
In Comparative Example 3, the same result was obtained.

  Therefore, it was demonstrated that the packaging bag A can be torn linearly so that the contents 10 can be easily and reliably taken out by storing the contents 10 at a space ratio of 3% or more.

As mentioned above, although one Embodiment of the packaging bag which concerns on this invention was described, this invention is not limited to said one Embodiment, In the range which does not deviate from the meaning, it can change suitably.
For example, in the present embodiment, the description has been made on the assumption that the packaging bag for wrapping the contents is a gusset type packaging bag, but the present invention is not limited to a gusset type packaging bag. Of course, the present invention can be applied to other types of packaging bags such as back bonding (joint palm). And even if it is a packaging bag of another form, it is possible to obtain the same effect as this embodiment.

1 laminate (laminate film)
2 back seal 3 front 4 back 5 folding part (side)
51 Folding part 52 Side deepest part 53 Boundary 6 lower end (bag end part)
7 Upper end (bag end)
10 Contents 11 Notch for opening (notch)
12 Opening auxiliary line A Packaging bag V1 Full capacity of packaging bag (total volume)
V2 Volume obtained from the outer shape of the contents V3 Spatial volume (space ratio)

Claims (2)

With the contents,
A laminate having a plastic film made by forming a bag shape, a front, rear, and side surfaces, and packaging Sobukuro you accommodating the content in a sealed state,
With
The packaging bag is
The bag end portion provided away opening for cutting, and the between from outs front and cut for Oite the opening to the rear surface to the boundary between the side surface, the packaging bag sequentially slitting and because cutout which for the opening When opening, it is formed by providing four or more rows of auxiliary opening lines for guiding the tear line in a desired direction so as to be parallel to the boundary, respectively .
While accommodating the contents, the percentage with respect to the full volume of the space volume of the packaging bag obtained by subtracting the volume of the contents determined the content as a block-shaped contour of the human mass from the full volume of the packaging bag Is formed to be 3% or more and 10% or less ,
A package characterized by that . A packaging body according to claim 1,
Packaging said stack of said packaging bag, characterized in that it is formed with at least a polyethylene terephthalate, aluminum, each layer of heat sealable resin.

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