JP5408747B2 - Oral tobacco product packaging container - Google Patents

Description

The present invention is, in terms of closing the opening of the pocket in a film member accommodates the oral tobacco product in a pocket formed in the plastic sheet, about the packaging container oral tobacco products to cover the film material.

Those PTP (Press Throuth Package) packaging recess formed in a plastic sheet, i.e., which accommodates the contained object such as a tablet in the pocket, closing the entire opening of the pocket breakable film material of aluminum foil It is. The user, by collapsing press the bottom of the pocket with a finger, Ri broken press film material by contained object, taking out the contained object from the pocket. As the plastic sheet, PVC (polyvinyl chloride), PP (polypropylene), A-PET (amorphous polyethylene terephthalate) and the like are often used. As film materials that are easily torn, moisture-proof paper , wax paper, etc. are often used in addition to aluminum foil. This PTP packaging is often used as a container for containing objects such as tablets and capsules of drugs and the like. This is because the object can be easily taken out. However, on the other hand, there is a drawback that the film material is easily broken during storage of the PTP package .

Therefore, as disclosed in Patent Document 1, in order to make the film material difficult to break, a method of using a laminated film made of a plurality of materials as the film material can be considered. However, although the film material (PTP packaging lid material) of Patent Document 1 has high strength, it is difficult to break at the time of opening, and handling properties are poor. What seems to have solved this defect is disclosed in Patent Document 2. In Patent Document 2, in order to reinforce an aluminum foil that forms part of a film material , a perforated paper layer is laminated on the aluminum foil to improve unsealing performance. However, since the film material of Patent Document 2 uses a paper layer that is another material other than the aluminum foil , the number of parts is increased.

On the other hand, from the viewpoint of littering prevention, in the package of gum product and oral tobacco product, there is a desire to temporarily store and re-accommodate the product after use the package. In a conventional blister pack in which a film material is pressure-bonded, once the film material is peeled off, the used product cannot be stored again in the pocket. On the other hand, although a blister pack having a reseal mechanism has been proposed, there is nothing to consider about the re-containment of used products, and it is not suitable for actually re-containing used products. An integrated blister (also called a double pack or shell pack) in which the package itself is folded in two is also known. This integrated blister fixes the overlapping part of a package body by fitting or adhesion | attachment. However, since the housing portion is covered and not sealed with a film material or the like, sealing during storage is insufficient, and there is a possibility that liquid may leak in a used product with much moisture.

JP-A-7-257638 International Publication No. 2007/113850 US Patent Application Publication No. 2009/0000968

The present invention does not increase the number of parts, can prevent the film material from being accidentally torn during storage, and can re-contain and store used oral tobacco products containing moisture without liquid leakage. An object of the present invention is to provide a packaging container for an oral tobacco product .

In order to achieve the above object, according to the present invention, there is provided a plastic sheet, a pocket forming part having a pocket formed by molding the plastic sheet, and from the pocket forming part toward the opening of the pocket through the folded part. It extends integrally Te, a plastic sheet and a surrounding rotatable reinforcement cover of the folded portion in between a closed position covering the opening of the open position and the pocket to expose the opening of the pocket, part reinforcement cover When in the closed position, a fixing device for removably fixing the end of the reinforcing cover portion to the pocket forming portion, a single oral tobacco product housed in the pocket, and the pocket forming portion has a seal area for closing the opening of the pocket by being bonded, when the reinforcing cover is in the closed position, the sealing zone is covered by the reinforcing cover And Irumu material, when used in oral tobacco product in the pocket and reinforcement cover is re-accommodated in the closed position, the mouth, characterized in that a liquid leakage preventing means for preventing liquid leakage from the pocket A packaging container for tobacco products is provided (claim 1) .

Preferably, the film material is an aluminum foil or wax paper that is crushed by the oral tobacco product when the oral tobacco product is taken out of the pocket (claim 2) .
In the case of such a film material made of aluminum foil or wax paper, the liquid leakage preventing means can include a polymer absorbent material bonded to the inner surface of the reinforcing cover portion (Claim 3), and the fixing device. Is formed by bending the end portion of the reinforcing cover portion, and includes a bent portion that sandwiches the outer edge of the pocket forming portion with the reinforcing cover portion , the liquid leakage preventing means is a reinforcing cover excluding the folded portion. The sealing structure which extended the bending part over the perimeter of the part can be included (Claim 4) .

Further, in the case of the above-mentioned film material, the liquid leakage preventing means is formed integrally with one of the pocket forming portion and the reinforcing cover portion, and the annular groove surrounding the opening of the pocket over the entire circumference, the pocket forming portion and the reinforcing member. An annular projection formed integrally with the other of the cover portions and fitted into the annular groove when the reinforcing cover portion is in the closed position can be included.

On the other hand, when the film material is made of plastic, the liquid leakage prevention means can include a pressure receiving portion formed on the film material, and the pressure receiving portion is fixed by the fixing device in the closed position of the reinforcing cover portion. When pressed by the reinforcing cover portion, the film material is pressed against the pocket forming portion. In this case, it is preferable that the pressure receiving portion is fixed to the inner surface of the reinforcing cover portion.

According to the present invention according to claims 1-7, the reinforcing cover portion formed by folding a plastic sheet covers the film material at the closed position, that the tearing the film material accidentally during storage of the packaging container It can be surely prevented. Moreover, since this invention has a fixing device for detachably fixing the edge part of a reinforcement cover part to a pocket formation part, a reinforcement cover part is hold | maintained in the closed position which covers a film material.
On the other hand, if the reinforcing cover portion is positioned at the open position, the oral tobacco product in the pocket can be easily taken out. Moreover, since the reinforcement cover part which covers a film material is integrally formed with the pocket formation part , it is not necessary to provide the protection member which protects a film material separately . For this reason, it is possible to reliably prevent undesired tearing of the film material without increasing the number of parts.

Therefore, even if the film material is an aluminum foil or wax paper that is stuck to the pocket forming part and is torn by the oral tobacco product when the oral tobacco product is taken out from the pocket , the film material is Because it is covered, it will not be accidentally torn during storage.
As another example, the film material may be made of plastic (more specifically, the same material as the pocket forming portion), and in this case , has a certain degree of rigidity. Therefore, even if such a plastic film material is used to open the pocket once, the opening of the pocket can be closed again.
Furthermore, the present invention is provided with a liquid leakage prevention means for preventing liquid leakage from the pocket when a used oral tobacco product is re-contained in the pocket, so that it does not suffer from problems due to liquid leakage. This makes it possible to temporarily store used oral tobacco products .

In the case of aluminum foil or wax paper film material, a polymer absorbent material used as a liquid leakage prevention means (Claim 3), a sealing structure also serving as a fixing device (Claim 3), a combination of an annular groove and an annular protrusion In addition, the pressure receiving part of the film material (Claim 6) employed as a liquid leakage prevention means in the case of a plastic film material prevents any liquid leakage from the pocket. To do.

Further, in the case of the pressure receiving portion, if the pressure receiving portion is fixed to the inner surface of the reinforcing cover portion (Claim 7) , the film material is also removed from the pocket forming portion at the same time as the reinforcing cover portion is rotated toward the open position. The pocket opening is exposed. Accordingly, the film material can be peeled off by the opening operation of the reinforcing cover portion, and the handling of the film material becomes simple.

It is the schematic which shows the basic composition of the packaging container in tobacco products for oral cavity . It is a schematic schematic sectional view of a packaging container of Figure 1 (A-A section of FIG. 1). It is shown to schematic cross-sectional view of the first opening operation in the packaging container of FIG. From the stage of FIG. 3 is a view to schematic cross-sectional view of the opening operation of the packaging container in the next step. From the stage of FIG. 4 is a view to schematic cross-sectional view of the opening operation of the packaging container in the next step. It is the schematic when the continuous package of FIG. 1 is accommodated in a blister pack. It is a schematic sectional drawing which shows the packaging container of the basic composition provided with the fixing device of the modification . It is a schematic sectional drawing which shows the packaging container of the basic composition provided with the fixing device of the modification . It is a schematic sectional drawing of the packaging container of the basic composition provided with the fixing device of the modification . It is a schematic sectional drawing which shows the packaging container of another basic composition . It is a schematic sectional drawing which shows the packaging container of another basic composition . It is a schematic sectional drawing which shows the packaging container of 1st Embodiment of this invention. It is a schematic sectional drawing which shows the packaging container of 2nd Embodiment of this invention. It is a top view of the packaging container of FIG. It is a schematic sectional drawing which shows the packaging container of a reference example . It is a schematic sectional drawing which shows the opening operation | movement of the packaging container of FIG. It is a schematic sectional drawing which shows the state in which the used oral tobacco product is re-contained in the pocket of FIG. It is a schematic sectional drawing which shows the state by which the packaging container was closed from the state of FIG. It is a schematic sectional drawing which shows the packaging container of 3rd Embodiment of this invention. FIG. 20 is a schematic cross-sectional view illustrating an initial opening operation of the packaging container of FIG. 19 . FIG. 21 is a schematic cross-sectional view showing the next opening operation of the packaging container from the stage of FIG. 20 . It is a schematic sectional drawing which shows the packaging container of another reference example . It is a schematic perspective view which shows the packaging container of another reference example . It is a schematic sectional drawing which shows the packaging container of 4th Embodiment of this invention .

FIG. 1 is a schematic diagram of the basic configuration of a packaging container for oral tobacco products .
As illustrated, packaging container 1 is provided with a pocket 3 for accommodating an oral tobacco product 2 (see FIG. 2) such Snus. In order to improve the storability of the packaging container 1, the plurality of packaging containers 1 are continuously connected by the connecting portion 4 to form a continuous package 5. A perforation 6 is formed in the connecting portion 4. Furthermore, the thickness of the connection part 4 is thinner than the packaging container 1 , thereby making it easy to separate each packaging container 1.

Figure 2 is a schematic schematic sectional view of a packaging container of Figure 1 (A-A section of FIG. 1).
As shown in FIG. 2, the oral tobacco product 2 is accommodated in the pocket 3. The pocket 3 is formed by denting a plastic sheet 7 by molding. A portion of the plastic sheet 7 in which the pocket 3 is formed becomes a pocket forming portion 32. The opening of the pocket 3 is closed with a film material 9. The portion of the film material 9 that closes the opening of the pocket 3 becomes the seal area 29. The plastic sheet 7 is bent halfway and has a folded portion 8 . The portion of the plastic sheet 7 that is folded back by the folded portion 8 extends toward the opening of the pocket 3 to form a reinforcing cover portion 10. The reinforcing cover portion 10 covers the seal area 29 of the film material 9. The end portion 12 of the reinforcing cover portion 10 located on the opposite side to the folded portion 8 is detachably fixed to the outer edge 11 of the pocket forming portion 32 via a fixing device. An example of the fixing device is a bent portion formed at the end portion 12 of the reinforcing cover portion 10. That is, the portion bent at the end portion 12 of the reinforcement cover portion 10 and the rising portion 13 which is bent once, and the return portion 14 back toward the folded portion 8 in Rukoto further bending the distal end portion of the rising portion 13, It has a knob portion 15 which is a further folded back end portion of the return portion 14 . By sandwiching the outer edge 11 of the pocket forming portion 32 between the reinforcing cover 10 and the return portion 14, the end portion 12 of the reinforcement cover portion 10 is engaged with the outer edge 11 of the pocket forming portion 32, thereby, the outer edge 11 The end portion 12 of the reinforcing cover portion 10 can be detachably fixed.

As described above, the reinforcing cover portion 10 at the closed position to cover the film material 9 can be reliably prevented from tearing the film material 9 inadvertently during storage of the packaging container 1. The end portion 12 of the reinforcement cover 10 is detachably fixed via a fixing device 13, 14, 15 to the outer edge 11 of the pocket forming portion 32. For this reason, the reinforcement cover part 10 is hold | maintained in the closed position which covers the film material 9. FIG. Thereby, the film material 9 is not undesirably broken. Further, since the reinforcing cover portion 10 covering the film material 9 is formed by bending the plastic sheet 7, another member or another part for protecting the film material 9 is unnecessary. For this reason, the undesired tearing of the film material 9 can be reliably prevented without increasing the number of parts.

3-5 shows the opening procedure of the packaging container 1 in order.
As shown in FIG. 3, first, the user hooks the knob portion 15 with a finger or the like and opens the rising portion 13 outward, whereby the end portion 12 of the reinforcing cover portion 10 is separated from the outer edge 11 of the pocket forming portion 32. Removed. Further, when the user turns the reinforcing cover 10 to the open position using the folded portion 8 as a hinge , the film material 9 is exposed as shown in FIG. Then, as shown in FIG. 5, when the user crushes the bottom of the pocket 3 in the direction of the arrow P, the oral tobacco product 2 breaks the film material 9 and is taken out from the pocket 3 . As described above, since the reinforcing cover portion 10 can be attached to and detached from the outer edge 11 of the pocket forming portion 32, the end portion 12 of the reinforcing cover portion 10 can be easily removed from the outer edge 11 of the pocket forming portion 32 and easily accommodated in the pocket 3. The object 2 can be taken out. In particular, if the film material 9 is made of aluminum foil or wax paper, the film material 9 is easily broken when taking out the oral tobacco product 2. Furthermore, it is preferable that the film material 9 is not torn during storage by the reinforcing cover portion 10. That is, since the film material 9 is made of aluminum foil or wax paper, it is easy to open when taking out the oral tobacco product 2 in the pocket 3 and is covered with the reinforcing cover portion 10, so that it is accidentally torn during storage. There is no. In addition, as described above, since the reinforcing cover portion 10 is folded with the plastic sheet 7 and integrated with the pocket forming portion 32 , the pocket forming portion 32 and the reinforcing cover portion 10 are not separated even when opened, There is no mess when it comes. Moreover, since the pocket 3 and the reinforcement cover part 10 are the same materials, the increase in material cost can also be suppressed. Further, since the reinforcing cover portion 10 is formed only by folding the plastic sheet 7, it is easy to manufacture and it is not necessary to prepare a complicated manufacturing apparatus. For example it is only the conventional PTP packaging machine provided folding narrowing mechanism so as to form a folded portion 8.

Since the tobacco product 2 for oral cavity is accommodated in the pocket 3 , the plastic sheet 7 is subjected to antibacterial treatment. The antibacterial agent is an inorganic or organic antibacterial agent. The inorganic antibacterial agent is silver zeolite or thiosulfite silver complex. The organic antibacterial agent is a nitrile derivative, imidazole derivative, triazine derivative, phenol ether derivative, or pyrrole derivative. Further, the pocket 3 may be transparent. Thereby, the tobacco product 2 for oral cavity in the pocket 3 can be confirmed visually easily. If the oral tobacco product 2 can be visually confirmed, the pocket 3 may be colored to some extent. Further, since the packaging container 1 is a separate package, the oral tobacco product 2 has high storage stability, and the oral tobacco product 2 does not collide with each other to be damaged. In particular, since the oral tobacco product 2 contains a high amount of water, the packaging container 1 is effective in preventing the oral tobacco product 2 from being dried and rotted. Moreover, since the packaging container 1 is disposable, it is clean.

FIG. 6 is a schematic view when the continuous package 5 (see FIG. 1) is accommodated in a blister pack.
As is clear from FIG. 6, the blister pack 6 is suitable when the continuous package 5 is displayed at a store or the like. Therefore, the blister pack 16 has a hanging portion 17.

FIG. 7 also shows a schematic cross-sectional view of the packaging container 1 having a basic configuration, and the packaging container 1 of FIG.
The fixing device shown in FIG. 7 includes a cross-sectional convex portion 18 formed by folding the end portion 12 of the reinforcing cover portion 10 and a cross-sectional concave portion 19 formed by folding the outer edge 11 of the pocket forming portion 32. Have. The convex portion of the cross-sectional convex portion 18 can be press-fitted into the concave portion of the cross-sectional concave portion 19. Thereby, the end 12 of the reinforcing cover part 10 is detachably fixed to the outer edge 11 of the pocket forming part 32. Other structures and effects are the same as those of the packaging container 1 of FIG.

Figure 8 is a schematic sectional view showing a packaging container of another basic configuration further.
The fixing device shown in FIG. 8 is an adhesive 20 for bonding the end portion 12 of the reinforcing cover portion 10 and the outer edge 11 of the pocket forming portion 32. Thereby, the end 12 of the reinforcing cover part 10 is detachably fixed to the outer edge 11 of the pocket forming part 32. The adhesive 20 is more preferably re-adhesive. Instead of the adhesive 20, glue or an adhesive tape may be used, or a hook-and-loop fastener may be used. Other structures and effects are the same as those of the packaging container 1 of FIG.

Figure 9 is a schematic sectional view showing a packaging container of another basic configuration further.
The fixing device shown in FIG. 9 is a clip 21 that sandwiches the end 12 of the reinforcing cover 10 and the outer edge 11 of the plastic sheet 7. By attaching and detaching the clip 21, the end portion 12 of the reinforcing cover portion 10 is detachably fixed to the outer edge 11 of the pocket forming portion 32. Other structures and effects are the same as those of the packaging container 1 of FIG.

Figure 10 is a schematic sectional view showing a packaging container of another basic configuration further.
Packaging container shown in FIG. 10. 1, includes a humidity control agent or oxygen scavenger 22 is placed inside the pocket 3. The moisture conditioner keeps the moisture of the oral tobacco product 2 constant, and the oxygen scavenger prevents the oral tobacco product 2 from being oxidized . Thereby, the environment in the pocket 3 can be adjusted appropriately. Therefore, the tobacco product 2 for oral cavity accommodated in the pocket 3 stably over a long period of time can be stored. In the pocket 3, either one of the humidity control agent and the oxygen scavenger may be arranged, or both may be arranged. In addition, a fragrance carrier may be disposed in the pocket 3 together with or in place of the humidity control agent or oxygen scavenger. The perfume carrier has a perfume that emits a scent. If the fragrance carrier is arranged in the pocket 3 , the user can enjoy the scent of the fragrance carrier when opening the film material 9, and can also smell the oral tobacco product 2.

Alternatively, it may also be an inert gas is filled in the pocket 3. Thus, the inert gas in the pocket 3 enables the quality of the oral tobacco product 2 to be stably stored for a long period of time. Other structures and effects are the same as those of the packaging container 1 of FIG.

Figure 11 is a schematic sectional view showing a packaging container 1 of another basic configuration further.
Pocket 3 of the packaging container 1 shown in Figure 11 has an anti-fogging processing unit 23 that antifogging treatment is performed therein. Anti-fogging is performed by affixing to the inner surface of the pocket 3 with a coating of a surfactant or knead suck, or an antifogging film. This antifogging effect is due to the action of nonionic active agents (glycerin fatty acid ester, sorbitan fatty acid ester, etc.). Thus, since the anti-fogging process is performed on the inner surface of the pocket 3, the inner surface of the pocket 3 is prevented from being fogged. Thus, not the visibility of the oral tobacco product 2 is prevented, not to miss the discoloration and spoilage of the oral tobacco product 2. In particular, it also SNUS der of oral tobacco products 2 is high moisture content, never pocket 3 is cloudy. Other structures and effects are the same as those of the packaging container 1 of FIG.

FIG. 12 is a schematic cross-sectional view of the packaging container according to the first embodiment of the present invention.
The packaging container of the first embodiment further includes liquid leakage prevention means on the premise of the packaging container 1 having the basic configuration described above, and the liquid leakage prevention means here is disposed between the film material 9 and the reinforcing cover portion 10. This is a sheet-like polymer absorbent 24 . The absorbent polymer material 24 is, for example, contains a polymeric absorbent such as polyacrylic acid salts. Since the polymer absorbent 24 absorbs moisture, when the used oral tobacco product 2 containing a large amount of moisture is re- contained in the pocket 3, moisture is prevented from leaking to the outside. Therefore, the pocket 3 can be used as a place for temporarily storing the used oral tobacco product 2 . At this time, the used oral tobacco product 2 is stored in a state where the end 12 of the reinforcing cover 10 is fixed to the outer edge 11 of the pocket forming portion 32. However, at this time, since the film material 9 has already been torn, saliva (liquid) contained in the used oral tobacco product 2 may leak to the outside. By sucking this saliva with the polymer absorbent 24 , it is possible to prevent saliva from leaking outside the packaging container . Order to ensure the positioning of the absorbent polymer material 24, absorbent polymer material 24 that is adhered to the inner surface of the reinforcement cover 10.

On the other hand , the packaging container of the present invention may include articles such as a written form, a coupon, or an instruction manual, discarded paper, a lottery, a cushion material, etc. Information such as the date of manufacture of the product 2, the expiration date, or the wording of warning may be printed. If the paper to be interposed object is discarded, it is also possible to discard wrapped oral tobacco products 2 to this discarded paper. At this time, if the reinforcement cover 10 is transparent, Ru visible the absorbent polymer material 24 from the outside. Other structures and effects are the same as those of the packaging container 1 of FIG.

FIG. 13: is a schematic sectional drawing which shows the packaging container of 2nd Embodiment of this invention. FIG. 14 is a plan view of the packaging container of FIG.
Packaging container of the second embodiment, the raised portion 13 shown in FIG. 2, the return portion 14, is provided over the entire periphery except the folded portion 8 of the locking device comprising a knob portion 15. Thus the fixing device so as to substantially seal the entire circumference also functions leakage preventing means, the used oral tobacco product 2 when temporarily stored in the pocket 3, the leakage of saliva from the pocket 3 It reliably prevented. The structure for sealing the entire periphery is not limited to this, and may be realized by sealing the pocket forming portion 32 and the reinforcing cover portion 10. Other structures and effects are the same as those of the packaging container 1 of FIG.

FIG. 15 is a schematic sectional view showing a packaging container as a reference example .
Packaging container of Figure 15, in addition to the rising portion 25 formed on the end portion 12 of the reinforcement cover 10 is also provided on the inner side of the raised portion 26 of the folded portion 8 having the same shape. On the other hand, a bent portion 28 that is bent inward is formed on the outer edge 11 of the pocket forming portion 32, and a bent portion 27 having the same shape is formed inside the folded portion 8. The raised portion 25 and 26, which is arranged to urge the bent portions 27 and 28 on the inside. Therefore, the reinforcing cover portion 10 is fixed in a state where the bent portions 27 and 28 are sandwiched by the rising portions 25 and 26.

When the user opens the film material 9 and takes out the object 2, as shown in FIG. 16, after opening the rising portion 25, the junction of the folded portion 8 with the pocket forming portion 32 is reinforced as a hinge. By rotating the cover part 10 , the engagement of the rising part 26 with the bent part 27 is released, and the reinforcing cover part 10 is opened. Thereafter, crushed bottom of the pocket 3, in Rukoto broken down the film material 9 via the oral tobacco products 2, takes out the oral tobacco product 2 from pocket 3.
Thereafter, re-accommodating the spent oral tobacco product 2 in the pocket 3 as shown in FIG. 17, then the indicated reinforcing cover 10 closed as in Figure 18, for the used oral The tobacco product 2 can be temporarily stored in the pocket 3. When reinforcing the cover portion 10 is in the closed position, bent portions 27 and 28 are similar between the upstanding portion 25, 26 is sandwiched again, reinforcing the cover portion 10 is fixed to the pocket forming portion 32.
Note that the features of the example shown above may be combined.

On the other hand, from the viewpoint of preventing the water leakage from the pocket 3 has been described, re accommodate already an oral tobacco product 2 used for the case where mainly used aluminum foil or the like as a film material 9 above, the film material You may form by what is hung up in the following examples.

FIG. 19 is a schematic cross-sectional view showing a packaging container according to a third embodiment of the present invention .
The packaging container of FIG. 19 has a folded portion 30 as a pressure receiving portion obtained by folding the end portion of the film material 9 . The portion of the film material 9 on the folded portion 30 side is not bonded to the outer edge 11 of the pocket forming portion 32. Instead, the folded short side 31 of the folded portion 30 is bonded to the inner surface of the reinforcing cover portion 10. Instead of adhesive, in write Mukoto fitted folded short side 31 to the reinforcement cover portion 10 may be connected to the folded short side 31 to the reinforcement cover 10. The sealing performance of the pocket 3 is maintained by the reinforcing cover portion 10 pressing the folded portion 30 against the outer edge 11 of the pocket forming portion 32. Accordingly, the film material 9 is preferably made of plastic having a certain degree of rigidity. Then, as shown in FIG. 20, the knob 15 is opened. This operation is the same as in the case of the packaging container 1 of FIG. Then, as shown in FIG. 21, when the reinforcing cover portion 10 is opened, the folded short side 31 is adhered to the inner surface of the reinforcing cover portion 10, so that the film material 9 is attached to the pocket 3 along with the opening operation of the reinforcing cover portion 10. Get away from. Thereby, since the tobacco product 2 for oral cavity is exposed, the tobacco product 2 for oral cavity can be taken out from the pocket 3 easily. If the film material 9 opens simultaneously with the reinforcing cover portion 10, the folded portion 30 of the film material 9 may be bonded to the outer edge 11 of the pocket forming portion 32. Moreover, it is preferable to adhere | attach the part of the reinforcement cover part 10 used as the power point in the case of opening operation, and the part of the film material 9 so that the film material 9 may be opened easily.

Further, when the used oral tobacco product 2 is re-contained in the pocket 3 , the packaging container is closed in reverse to the above-described opening operation, and the state shown in FIG. 19 is obtained. That is, the used oral tobacco product 2 is accommodated in the pocket 3 and the reinforcing cover 10 is closed. In this case, a plastic film material 9 covering the opening of the pocket 3. The plastic film material 9 is pressed against the outer edge 11 of the pocket forming portion 32 so as to securely seal the pocket 3 by reinserting the knob 15 and returning the used tobacco for oral cavity. The moisture contained in the product 2 does not leak out of the pocket 3, and the used oral tobacco product 2 can be carried .
In the case of the third embodiment, as is clear from the above description, the liquid leakage preventing means is constituted by a plastic film material 9 and a folded portion 30 as a pressure receiving portion formed on the film material 9.

Figure 22 is a further schematic cross-sectional view showing a packaging container according to another reference example.
In the case of the packaging container of FIG. 22, the pocket 3 for accommodating the tobacco product 2 for oral cavity is formed in a vertically long shape. If the pocket 3 is thus elongated vertically, the seal area 29 by the film material 9 can be narrowed, so that the material cost of the film material 9 can be reduced. Furthermore, the surface area of the reinforcing cover portion 10 can be reduced. In the case of such a vertically long pocket 3, when taking out the oral tobacco product 2 , the pocket 3 is crushed from both sides as shown by the arrow S direction.

FIG. 23 is a schematic perspective view showing a packaging container of still another reference example .
In the case of the packaging container of FIG. 23, a perforation 33 is formed in the reinforcing cover portion 10 so as to cross the reinforcing cover portion 10, and the reinforcing cover portion 10 is divided into an opening / closing region 10a and a closing region 10b. . The opening area of the pocket 3 corresponding to the opening / closing region 10a is set to a size that allows the oral tobacco product 2 to be taken out. That is, when the tobacco product 2 for oral cavity is taken out, only the open / close region 10a may be opened in the direction of the arrow R. By dividing the thus reinforcing the cover portion 10 to the opening and closing region 10a choke area 10b, for example, when storing the used oral tobacco products 2 temporarily because of the high sealability in the occluded region 10b, from the pocket 3 It is highly possible to reduce the leakage of moisture . Note that the closed region 10b may also be opened by applying more force to the closed region 10b . In this case, the pocket 3 can be opened in two stages with the perforation 33 as a boundary.

FIG. 24 is a schematic sectional view showing a packaging container according to a fourth embodiment of the present invention.
In the case of the packaging container according to the fourth embodiment , an annular protrusion 34 and an annular groove 35 that can receive the annular protrusion 34 are provided over the entire circumference of the pocket 3 at a portion where the pocket forming portion 32 and the reinforcing cover portion 10 are in contact. The annular protrusion 34 and the annular groove 35 are formed to constitute a liquid leakage preventing means . By providing such a liquid leakage preventing means, upon temporarily storing spent oral tobacco product 2 in the pocket 3, it is possible to enhance the sealing of the pocket 3, from the pocket 3 water from leaking Can be prevented. In addition, although the figure showed the example which formed the annular protrusion 34 in the reinforcement cover part 10 and the annular groove 35 in the pocket formation part 32, these may be formed reversely .

DESCRIPTION OF SYMBOLS 1 Basic structure packaging container 2 Oral tobacco product 3 Pocket 4 Connection part 5 Continuous packaging body 6 Perforation 7 Plastic sheet 8 Folding part 9 Film material 10 Reinforcement cover part 11 Outer edge 12 Reinforcement cover part edge part 13 Rising part 14 Return portion 15 Picking portion 16 Blister pack 17 Suspension portion 18 Cross section convex portion 19 Cross section concave portion 20 Adhesive 21 Clip 22 Humidity adjusting agent or oxygen scavenger 23 Antifogging treatment portion 24 Polymer absorbent material 25 Start up portion 26 Standing up Raised part 27 Folded part 28 Folded part 29 Sealing area 30 Folded part 31 Folded short side 32 Pocket forming part 33 Perforation 34 Annular projection 35 Annular groove

Claims (7)

A plastic sheet,
A pocket forming part having a pocket formed by molding the plastic sheet;
It extends integrally from the pocket forming portion to the opening of the pocket through the folded portion, and around the folded portion between an open position exposing the pocket opening and a closed position covering the pocket opening. A plastic sheet including a rotatable reinforcing cover portion ;
A fixing device for removably fixing the end of the reinforcing cover part to the pocket forming part when the reinforcing cover part is in the closed position ;
A single oral tobacco product contained in the pocket;
A film material that has a seal region that closes the opening of the pocket by being bonded to the pocket forming portion, and the seal region is covered by the reinforcement cover portion when the reinforcement cover portion is in the closed position ; ,
Liquid leakage preventing means for preventing liquid leakage from the pocket when the used oral tobacco product is re-contained in the pocket and the reinforcing cover portion is in the closed position. A packaging container for oral tobacco products . 2. The oral tobacco product according to claim 1, wherein the film material is an aluminum foil or wax paper that is crushed by the oral tobacco product when the oral tobacco product is taken out from the pocket . Packaging container. The packaging container for tobacco products according to claim 2, wherein the liquid leakage preventing means includes a polymer absorbent material adhered to the inner surface of the reinforcing cover part. The fixing device is formed by bending an end portion of the reinforcement cover part, it viewed including the bent portion sandwiching an outer edge of the pocket forming portion at between the reinforcing cover,
3. The packaging of tobacco products for oral cavity according to claim 2 , wherein the liquid leakage preventing means includes a sealed structure in which the bent portion is extended over the entire circumference of the reinforcing cover portion excluding the folded portion. container. The liquid leakage preventing means is
An annular groove formed integrally with one of the pocket forming portion and the reinforcing cover portion and surrounding the opening of the pocket over the entire circumference;
3. The annular projection formed on the other of the pocket forming portion and the reinforcing cover portion, and including an annular protrusion fitted into the annular groove when the reinforcing cover portion is in the closed position. Packaging container for oral tobacco products as described. The film material, Ri plastic der,
The liquid leakage preventing means includes a pressure receiving portion formed on the film material,
The pressure receiving portion is pressed by the reinforcing cover portion and presses the film material against the pocket forming portion when the reinforcing cover portion is fixed by the fixing device in the closed position. Package for oral tobacco products as described in 1. The packaging container for an oral tobacco product according to claim 6, wherein the pressure receiving portion is fixed to an inner surface of the reinforcing cover portion.

Images