JP2010265010A - Packaging container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the ability to tightly close a packaging container and to make it easier to re-stick a lid. <P>SOLUTION: The packaging container includes: a container body 2 that has an outlet 6 for taking out wet sheets 5 accommodated therein, and is formed from an air-tight, water-non-permeable flexible sheet; and the lid 4 that is formed larger than the outlet 6, stuck to the circumference of the outlet 6 of the container body 2, used for opening/closing the outlet 6, formed from an air-tight, water-non-permeable flexible sheet, and has an adhesive layer 12 on a side 11 opposite the container body 2, the adhesive layer 12 capable of being stuck to the container body 2 again and peeled therefrom again. A projecting reinforcement 7 is formed on the side 3 of the container body 2, to which the lid 4 is stuck. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a packaging container containing a wet sheet impregnated with a chemical solution containing water, alcohol, etc., and the outlet for taking out the wet sheet is closed with a lid to prevent the wet sheet from drying. It relates to packaging containers.

  Conventionally, a wet sheet, for example, a wet tissue impregnated with a fiber material such as paper, woven fabric, or nonwoven fabric, impregnated with a chemical solution containing alcohol, a moisturizing agent, a surfactant, etc. has a hermetic and water-impermeable package so as not to dry. Housed in a container. There are various types of wet sheets, such as wiping off dirt on the skin, removing makeup, wiping the buttocks of infants, and wet sheets for cleaning.

  The packaging container for storing the wet sheet has a container main body made of a flexible resin film having airtightness and water-impermeable property so that the chemical solution of the wet sheet is not dried. A large number of wet sheets are folded and accommodated in the container body. An outlet for taking out the wet sheet is formed on the upper surface of the container body. The packaging container has a lid made of a flexible resin film in order to open and close the outlet of the container body.

  In such a packaging container, the wet sheet is prevented from being dried by attaching a lid to the outlet of the container body having airtightness and water-impermeable property. In the case of a packaging container, when a wet sheet is used, a lid that can be bonded and peeled is repeatedly peeled off from the container body on the surface of the upper surface of the container body to open the outlet and the wet sheet from the outlet. Can be pulled out one by one. After use, the lid is attached to the outlet of the container body again, and the outlet is closed to re-seal and prevent the wet sheet from drying.

  Since the container body and lid are formed of a flexible resin film, etc., the packaging container is prone to loosening and wrinkles at the outlet and lid. If the container body or lid is pulled and kept tight so that there is no looseness or wrinkles around the lid, the lid must be attached and it takes time to close the outlet. .

  In addition, in the packaging container, when the lid is attached to the container body while the outlet and the lid are loosened or wrinkled, a gap is formed between the container body and the lid, and the sealing performance is reduced. The wet sheet is dried.

  In particular, in a flexible container body, when the remaining amount of the wet sheet decreases, the deformation of the flexible container body increases, and the looseness and wrinkles generated around the take-out port also increase. Since the gap between and becomes larger, the sealing performance is further deteriorated. For example, a wet sheet for wiping the bottom of an infant is required to increase the number of wet sheets because the number of sheets used is large. When the number of wet sheets is increased, the height of the container body also increases. For this reason, the deformation of the container main body when the remaining amount of the wet sheet decreases is further increased. As a result, when the number of wet sheets is increased, the hermeticity when the remaining amount of wet sheets decreases further deteriorates.

  In the packaging container, in order to prevent the wet sheet from drying, the bonding area where the lid is bonded to the container body is wide and flat, so once the lid is attached to the container body, it is difficult to peel off and the lid body Re-sticking becomes troublesome. Moreover, in the packaging container, since the bonding area where the lid is bonded to the container body is wide, if the lid is pasted with a gap between the lid and the container body, the lid is Even if it is pressed against the main body, it is difficult to eliminate the gap. For this reason, in a packaging container, the lid is peeled from the container body once, and the container body is pulled so that there is no wrinkle or slack in the adhesion area of the container body, and the lid is attached while maintaining the pulled state. You have to fix it, and it becomes troublesome.

  In Patent Document 1 below, as shown in FIG. 13, a reinforcing member 31 made of a relatively hard synthetic resin material is attached to the peripheral portion of the outlet 30 to reinforce the strength of the peripheral portion of the outlet 30. It is described to prevent the occurrence of wrinkles.

  However, in the packaging container 32 described in Patent Document 1, since the adhesive force of the lid 33 to the container body 34 is high and the adhesion region 35 is wide, the lid 33 is bent, as in the packaging container described above. Once the lid 33 is stuck once in the state of a ridge, the lid 33 is difficult to peel off, and there is no change in that the pasting is troublesome. If the lid 33 cannot be re-applied so that no gap is generated between the lid 33 and the container body 34, the sealing performance is not sufficient and the wet sheet 36 is dried.

  Moreover, since the packaging container 32 described in patent document 1 sticks the reinforcement member 31 to the peripheral part of the extraction port 30, the alignment of the extraction port 30 and the reinforcement member 31 is required, and a manufacturing process is complicated. Therefore, since another member called the reinforcing member 31 is required, the manufacturing cost is increased accordingly.

No. 6-8274

  Therefore, the present invention has been proposed in view of such conventional circumstances, the lid can be attached to the container body without any gap, and the sealing performance can be maintained. It is an object of the present invention to provide a packaging container that can be easily pasted.

  The packaging container according to the present invention that achieves the above-mentioned object has an outlet for taking out the wet sheet accommodated therein, and has a container body made of a flexible sheet having airtightness and water impermeability, and more than the outlet. It is formed in a large size, is bonded to the periphery of the outlet of the container body, opens and closes the outlet, is made of a flexible sheet having airtightness and water impermeability, on the surface facing the container body, with respect to the container body, And a lid having a re-adhesive / re-peelable adhesive layer, and a protruding reinforcing portion is formed on a surface of the container body on which the lid is bonded.

  In the present invention, the periphery of the outlet is loosened or wrinkles are generated by providing a reinforcing portion in a protruding shape around the outlet of the container body having flexibility. Can be prevented. Further, in the present invention, by providing a reinforcing portion around the outlet, when the outlet is closed with the lid, the lid is temporarily bonded to the protruding reinforcing portion, and the container body and the lid are bonded. Since the area is reduced, the lid can be easily attached to the container body. For these reasons, in the present invention, there is no gap between the container body and the lid body, the adhesion between the container body and the lid body can be improved, and the lid body can be reattached to the container body. This can be easily performed, and it is possible to prevent the wet sheet from drying and the entry of dust and the like.

It is a perspective view of the packaging container to which this invention is applied. It is a partial cross section figure in line segment AA in FIG. It is a partial cross section figure of the packaging container which has the reinforcement part which provided the contact bonding layer on the surface. It is a perspective view of the packaging container which provided the reinforcement part twice. It is a partial cross section figure of the packaging container which shows the state which provided the reinforcement part twice and provided the height of the outer reinforcement part lower than the height of an inner reinforcement part. It is a perspective view of the packaging container which provided the reinforcement part in the U shape. It is sectional drawing of a cover body. It is a partial cross section figure of the packaging container which shows the state by which the cover body is temporarily bonded to the reinforcement part. It is a partial cross section figure of the packaging container which shows the state by which the cover body is adhere | attached on the container main body. It is a perspective view of the packaging container which provided the recessed part in the cover body. It is a partial cross section figure of the packaging container which shows the state which the reinforcement part and the recessed part of the cover body engaged. It is a figure which shows the comparison of the conventional packaging container and the packaging container to which this invention is applied. It is a perspective view of the conventional packaging container.

  Hereinafter, a packaging container to which the present invention is applied will be described in detail with reference to the drawings.

  As shown in FIG. 1, the packaging container 1 includes a container body 2 made of a film material having airtightness and water impermeability, and a lid body 4 bonded to the approximate center of the upper surface 3 of the container body 2. In the packaging container 1, a wet sheet, for example, a bundle 5 of wet tissues, which is stacked so as to be fed out one by one, is accommodated inside the container body 2. An outlet 6 for taking out the wet sheet is formed at a substantially central portion of the upper surface 3 of the container body 2. Hereinafter, a case where a wet tissue is used as the wet sheet will be described.

  The container body 2 is made of a flexible, airtight and water-impermeable sheet, for example, a single material or a composite material of a synthetic resin such as polyethylene, polypropylene, polyester, polyamide, and polyvinyl chloride. The container body 2 is not limited to the above, and may be made of a composite material obtained by bonding the above-described synthetic resin and aluminum foil, paper, or the like. The container body 2 is a so-called pillow type package in which both end portions in the longitudinal direction of the film are sealed, and a bundle 5 of wet tissues is enclosed in the inside thereof.

  In addition, the packaging container 1 is not limited to the so-called pillow type as described above, and is formed of a flexible, airtight and water-impermeable sheet-like material that can accommodate a wet tissue or the like therein. Any thing is acceptable.

  As shown in FIG. 1, the outlet 6 formed in the container main body 2 is formed at a substantially central portion of the upper surface 3 so that both ends form an arc parallel to the longitudinal direction of the container main body 2. The outlet 6 is not limited to the shape shown in FIG. 1 and may be oval or rectangular as long as the whole is covered with the lid 4 and the wet tissue can be taken out. Further, the outlet 6 is not limited to the one in which the outlet 6 is formed in advance, but the perforation for forming the outlet 6 in the container body 2 or the thickness of the container body 2 corresponding to the perforation is reduced. Alternatively, the container 6 may be formed by cutting the outlet 6 portion of the container body 2. When a perforation or the like is provided in the container body 2, a portion that becomes the outlet 6 is attached to the lid body 4 by the adhesive applied to the surface of the lid body 4 that faces the container body 2. Then, when the wet tissue is used for the first time, the lid 4 is peeled from the container main body 2, so that the portion that becomes the outlet 6 together with the lid 4 is cut out from the container main body 2 to form the outlet 6. .

  In the container body 2, a reinforcing portion 7 that reinforces the periphery of the outlet 6 on the surface of the upper surface 3 is formed in a substantially linear shape around the outlet 6, for example, slightly outward from the outlet 6. The reinforcing portion 7 has, for example, a width of about 0.5 mm to 5 mm, a height of about 0.05 mm to 0.5 mm, and is provided at a position of about 5 mm to 30 mm from the outlet 6. The width and height of the reinforcing portion 7 and the position from the outlet 6 are not limited to this range, and are appropriately determined depending on the size of the container body 4 and the outlet 6. The reinforcing portion 7 is formed around the outlet 6 to reinforce the periphery of the outlet 6 and prevent slack and wrinkles around the outlet 6. Thereby, in the packaging container 1, there is no gap between the container body 2 and the lid body 4, and the lid body 4 can be adhered to the container body 2. Furthermore, by providing the reinforcement part 7 in the container main body 2, when the cover body 4 is re-attached with respect to the container main body 2 so that it may mention later, it becomes possible to re-attach easily.

  For example, as shown in FIGS. 1 and 2, the reinforcing portion 7 is formed in a substantially linear shape on the surface of the upper surface 3 of the container body 2 with a substantially semicircular protrusion. The shape of the reinforcing portion 7 is not limited to a substantially semicircular cross section, but may be a substantially rectangular shape or the like, and is not limited to a linear shape, and may be a belt shape. The reinforcing portion 7 may be provided not only on the upper surface 3 of the container body 2 but also around the outlet 6 on the back surface of the container body 2 to further reinforce the periphery of the outlet 6.

  The reinforcing portion 7 is formed on the surface of the upper surface 3 around the outlet 6 by applying, for example, a hot melt adhesive as a resin by intaglio coater, letterpress coater, gravure printing or the like. The resin to be used is one that can secure the necessary strength around the outlet 6 according to the strength of the sheet forming the container body 2 and the like. As the hot melt adhesive, for example, Dispomelt (manufactured by Henkel Technologies Japan Co., Ltd.) can be used. It is preferable that the reinforcing part 7 has an adhesive force to the container body 2 higher than an adhesive force of the adhesive layer 12 of the lid 4 to the container body 2. By increasing the adhesive strength of the reinforcing portion 7, it is possible to prevent the reinforcing portion 7 from sticking to the lid 4 side when the lid 4 is peeled from the container body 2.

  The reinforcing portion 7 requires another reinforcing member such as a film as compared with a case where a film-like reinforcing member is attached around the outlet 6 or a case where resin is applied in a flat shape around the outlet 6. In addition, since the amount of the resin used is small, the manufacturing cost can be reduced. When a film-like reinforcing member is used, alignment with the outlet 6 is necessary. However, the film can be used by forming the reinforcing portion 7 around the outlet 6 in a substantially linear shape. As a result, there is no need for alignment, and the manufacturing process can be simplified.

  As shown in FIG. 1, the reinforcing portion 7 is formed around the outlet 6 in the bonding region 3 a to which the lid body 4 is bonded on the upper surface 3 of the container body 2. The reinforcing portion 7 can reinforce the entire periphery of the outlet 6 by forming the outlet 6 over the entire circumference. In the case where the outlet 6 is formed by cutting a part of the container body 2, if the reinforcing portion 7 is formed on the perforation before cutting, the container body 2 cannot be cut along the perforation. There may be a problem that the outlet 6 is not formed. For this reason, when part of the container body 2 is cut out to form the outlet 6, the reinforcing portion 7 is formed outside the perforation so that the outlet 6 can be reliably formed.

  As another formation pattern of the reinforcing portion 7, in order to improve the adhesive force with the lid body 4, as shown in FIG. Also good. By providing the adhesive layer 8 on the reinforcing portion 7, the adhesion between the container body 2 and the lid body 4 can be improved, the sealing property can be further improved, and drying of the wet tissue can be prevented for a long period of time. The adhesive layer 8 is, for example, a pressure sensitive adhesive such as polyester, acrylic or rubber.

  Further, as shown in FIG. 4, the second reinforcing portion 9 is formed on the outer side of the reinforcing portion 7 (first reinforcing portion 7) to be doubled, or the reinforcing portion 7 is further formed to be triple or more. You may make it provide, The number of the reinforcement parts 7 is decided suitably by the relationship with the intensity | strength etc. of the container main body 2. FIG. Thereby, in such a packaging container 1, by providing the some reinforcement part 7, rather than what provided the one reinforcement part 7, it is prevented more that a slack and a wrinkle generate | occur | produce around the taking-out port 6. FIG. And the sealing property can be further improved. Further, the adhesive layer 8 may be provided on the surface of the reinforcing portion 7.

  When the reinforcing portions 7 are provided in multiple layers, the heights of the reinforcing portions 7 may all be the same, or, as shown in FIG. May be made lower than the height of the inner reinforcing portion 7, and in the case of three or more layers, the height may be gradually decreased from the inner reinforcing portion 7 to the outer reinforcing portion 7. When the height of the outer reinforcing portion 9 is higher than that of the inner reinforcing portion 7 and the end portion of the lid 4 is not bonded to the container main body 2, the sealing performance is lowered. On the other hand, the height of the outer reinforcing portion 9 is made lower than the inner reinforcing portion 7 so that the end of the lid 4 adheres to the container main body 2, thereby preventing a decrease in sealing performance.

  As shown in FIG. 6, you may form the reinforcement part 7 in a U-shaped open loop. In this case, a taper 7a is provided on the other end side of the container body 2 of the reinforcing portion 7 so that no gap is formed between the container body 2 and the lid 4 on the other end side in the longitudinal direction of the container body 2. Form. Even in the case of such a reinforcing portion 7, as with the above-described reinforcing portion 7, sealing properties can be obtained, and drying of the wet tissue can be prevented. In addition, you may make it form the contact bonding layer 8 also on the surface of this reinforcement part 7. FIG.

  The reinforcing portion 7 is not limited to the above-described one, and the position and shape of the reinforcing portion 7 can be formed as long as the periphery of the outlet 6 can be reinforced and the adhesion between the container body 2 and the lid 4 can be maintained. Is not limited. Further, in the packaging container 1, the reinforcing portion 7 is provided closer to the outlet 6 side than the position facing the end portion of the lid body 4 so that the end portion of the lid body 4 adheres to the upper surface 3 of the container body 2 without a gap. It is preferable to form.

  The lid 4 that closes the outlet 6 surrounded by the reinforcing portion 7 is larger than the outlet 6 and is sized to close the outlet 6 as shown in FIG. 3 is attached to the adhesion region 3a of the adhesive layer 3a so as to be able to be adhered and peeled.

  The lid 4 is made of a composite material made of a synthetic resin sheet such as polyethylene, polypropylene, polyester, polyamide, polyvinyl chloride, or a composite sheet made by bonding these synthetic resin sheets and aluminum foil, paper, etc. It is formed of a sheet having water impermeability. Specifically, as shown in FIG. 7, the lid 4 has a base material layer 10 made of polypropylene or polyethylene terephthalate or the like and a surface 11 of the base material layer 10 facing the container main body 2 with respect to the container main body 2. And an adhesive layer 12 formed by applying a re-adhesive and re-peelable adhesive that can be repeatedly bonded and peeled. In addition to the two layers, the lid body 4 is printed with a predetermined character, figure, etc. on the surface 13 opposite to the surface on which the adhesive layer 12 of the base material layer 10 is provided. You may further have the printing adhesive layer 14 with which the adhesive agent for bonding 15 was applied, and the protective layer 15 which consists of an extending | stretching polypropylene.

  The lid 4 is formed in accordance with the shape of the outlet 6 and, for example, is formed in a substantially rectangular shape as shown in FIG. The lid 4 is formed with a knob 16 at one end in the longitudinal direction to facilitate repeated peeling and bonding to the container body 2. Moreover, the cover body 4 has the stopper 17 for preventing the cover body 4 from peeling completely in the peeling operation by a user in the other end side of a longitudinal direction. The lid 4 cannot be peeled off from the container main body 2 by the stopper 17, and the end on the other end side of the container main body 2 becomes a fixed portion 4 a fixed to the container main body 2.

  The adhesive layer 12 is a layer to which a re-adhesive / removable adhesive is applied so that the lid 4 can be repeatedly adhered to and peeled from the container body 2, and the thickness thereof is 10 to 30 μm. . As the adhesive layer 12, for example, a polyester-based, acrylic-based, rubber-based or the like pressure-sensitive adhesive is used. Note that the adhesive layer 12 may not be formed in a portion facing the outlet 6. The knob portion 16 is formed so as to protrude from a substantially arc at one end in the longitudinal direction. In order to make the knob 16 easy to pick, the adhesive layer 12 is not formed and is not attached to the container body 2. The knob 16 is not limited to the above, and any knob may be used as long as it is formed at the end of the lid 4 and can be easily peeled off by the user. The shape of the knob 16 is, for example, a rectangle or a trapezoid. May be. Further, the knob 16 is not limited to the above, and any knob that can be easily picked by the user can be used. Instead of the adhesive layer 12 being applied, a so-called glue is provided at a predetermined position of the adhesive layer 12. A layer that makes adhesion impossible, such as killing or suppressing glue, may be further formed.

  The stopper 17 provided on the other end side of the lid body 4 is formed by cutting the vicinity of the other end side of the long side of the lid body 4. The shape of the stopper 17 is a curve that is curved in a semicircular shape following the straight portion 18 that is obliquely cut inwardly from the end of the lid 4 toward the other end of the long side, and the straight portion 18. Part 19. The stopper 17 stops the peeling of the lid 4 as shown in FIG. 1 when the lid 4 is peeled from the container body 2.

  The wet tissue bundle 5 accommodated in the packaging container 1 having the above-described configuration is wet such as a nonwoven fabric made of pulp, cotton, synthetic fiber, paper made of natural pulp, synthetic pulp, or cloth such as gauze. A fiber material or the like having strength is impregnated with a liquid component or solution such as water, alcohol, fragrance, skin lotion, medicine, or surfactant. The wet tissue bundle 5 is a so-called pop-up packaging container in which the wet tissues are folded one on top of the other so that the wet tissue can be continuously taken out from the outlet 6 of the packaging container 1. 1 is housed.

  Note that the wet tissue bundle 5 is not limited to the above, and may be a laminate of folded wet tissues without overlapping. Moreover, as a wet sheet accommodated in the packaging container 1, a makeup | decoration remover, the infant's buttocks wiping, the wet sheet for cleaning, etc. may be sufficient.

  In the packaging container 1 in which the wet tissue is accommodated, the lid body 4 is adhered to the adhesion region 3 a by the adhesive layer 12 to close the outlet 6 of the container body 2. Thereby, as for the packaging container 1, airtightness and water impermeability are maintained, and the drying of the wet tissue accommodated is prevented.

  When using the wet tissue, the knob 16 of the lid 4 is picked and the lid 4 is pulled upward in the direction of arrow X in FIG. The cover 4 is gradually peeled off from the adhesion region 3a of the container body 2 and peeled off to the fixing portion 4a by the stopper 17, and the outlet 6 is exposed.

  After the wet tissue is taken out, the knob 16 of the lid 4 is picked, the lid 4 is lowered in the direction of arrow Y in FIG. 1, and the lid 4 is moved from the fixed portion 4a side to the knob 16 side. Gradually, as shown in FIG. 8, temporary adhesion is performed on the reinforcing portion 7 of the container body 2. In the packaging container 1, since the reinforcing portion 7 is formed around the outlet 6, the lid 4 is placed on the reinforcing portion 7 of the container main body 2 without causing slack or wrinkles around the outlet 6. Can be temporarily bonded. Moreover, in this temporary adhesion, as shown in FIG. 8, since the lid body 4 is placed on the reinforcing portion 7 formed in a protruding shape, the reinforcing portion 7 and the lid body 4 are in line contact. That is, in the state shown in FIG. 8, the reinforcing portion 7 and the lid body 4 are in line contact with each other, so the reinforcing portion 7 is not formed, and the lid body 4 is adhered to the entire surface of the adhesion region 3 a of the container body 2. Compared with the case where it is done, the adhesive force of the container main body 2 and the cover body 4 becomes weak.

  As a result, in the packaging container 1, the lid body 4 is attached to the container body 2 when the lid body 4 is displaced and stuck to the container body 2 even if the reinforcing portion 7 has no slack or wrinkles around the outlet 6. Since the container body 2 and the lid body 4 are weakly bonded to each other, the lid body 4 can be easily peeled from the container body 2. In the packaging container 1, the lid 4 is again adhered to the container body 2, or the lid 4 is pressed along the upper surface 3 of the container body 2 without peeling the lid 4 once. A gap between the lid body 4 and the container body 2 due to the body 4 being displaced and stuck can be eliminated. In the packaging container 1, it is easy to re-attach the lid 4 to the container body 2. Therefore, even if the soft lid 4 that easily becomes loose or wrinkles is used, the lid 4 can be re-attached or the lid 4 can be removed. Since the lid 4 can be brought into close contact with the container main body 2 by being pressed against the container main body 2, the manufacturing cost can be reduced. Moreover, in this packaging container 1, since the cover body 4 can be easily affixed with respect to the container main body 2, even if it is one hand, the extraction port 6 can be sealed with the cover body 4. FIG.

  Then, after temporary bonding, the lid body 4 is pressed against the container main body 2, whereby the lid body 4 is adhered to the reinforcing portion 7 and the bonding region 3 a of the container main body 2 as shown in FIG. 9. In the packaging container 1, the above-described operation is repeated each time wet tissue is used.

  In this packaging container 1, since the reinforcing portion 7 is formed around the outlet 6 of the container body 2, no slack or wrinkle occurs around the outlet 6, and there is no gap between the container body 2 and the container body 2. The lid 4 can be affixed to the container body 2 without occurring. Thereby, the packaging container 1 can be sealed with the lid body 4 and the drying of the wet tissue can be prevented.

  Moreover, in this packaging container 1, since the cover body 4 is adhere | attached also on the surface of the reinforcement part 7 by forming the projection-shaped reinforcement part 7 in the container main body 2, the reinforcement part 7 is not formed. In this case, the bonding area between the container body 2 and the lid body 4 becomes wider than the case where the periphery of the outlet 6 is reinforced with the label-like reinforcing portion 7, and the adhesive force is increased accordingly, and the sealing performance is improved. .

  Further, in the packaging container 1, even when the remaining amount of wet tissue decreases, the slack and wrinkles that occur around the outlet 6 do not occur, and the lid 4 is closed when the outlet 6 is closed with the lid 4. Even if the cover is displaced, the lid 4 is temporarily bonded onto the reinforcing portion 7 and the adhesive force between the reinforcing portion 7 and the lid 4 is weak. Therefore, the lid 4 is peeled off from the container body 2 and easily closed. Can be redone.

  Furthermore, in the packaging container 1 described above, as shown in FIGS. 10 and 11, the lid 4 may be formed with a recess 20 that engages with the reinforcing part 7 formed in the protruding shape of the container body 2. Good. In such a packaging container 1, when closing the outlet 6 with the lid body 4, the lid body 4 is gradually placed on the reinforcing portion 7 of the container body 2 from the fixing portion 4 a side toward the knob portion 16 side. By temporarily bonding and further pressing the lid 4 against the container body 2, the reinforcing portion 7 and the concave portion 20 of the lid 4 are engaged. Thereby, in this packaging container 1, when the outlet 6 is closed with the lid body 4, not only the adhesive force to the container body 2 by the adhesive layer 12 formed on the lid body 4 but also the reinforcing portion 7 of the container body 2. And the concave portion of the lid body 4 can be surely prevented by generating a gap between the container body 2 and the lid body 4, and the adhesive force between the container body 2 and the lid body 4 is improved. Sealability can be further improved. In this packaging container 1, by repeating the bonding and peeling of the lid body 4, the reinforcing portion 7 and the concave portion 20 of the lid body 4 are engaged even if the adhesive force of the adhesive layer 12 of the lid body 4 is reduced. Thus, the closing of the outlet 6 can be maintained.

  In the packaging container 1 shown in FIG. 10, an adhesive layer may be provided on the surface of the reinforcing part 7, or the reinforcing part 7 may be formed twice or more. Moreover, also in this packaging container 1, as above-mentioned, generation | occurrence | production of the looseness and wrinkles of the outlet 6 can be prevented, the cover body 4 is temporarily bonded on the reinforcement part 7, and the cover body 4 is easy to reattach. .

  Hereinafter, as in the packaging container 1 described above, on the surface of the upper surface of the container body, a packaging container provided with a protruding reinforcing portion around the outlet is prevented from generating wrinkles, and the container body and the lid are in close contact with each other. The properties, the amount of resin used, and the thickness of the lid were evaluated as shown in FIG.

  Sample 1 is a packaging container in which a protrusion-shaped reinforcing portion is applied around the outlet on the surface of the upper surface of the container body by applying a hot melt adhesive. Sample 2 is a packaging container in which a protruding reinforcing portion is provided around the outlet on the back surface of the upper surface of the container body. Sample 3 is a packaging container in which a resin is applied in a flat shape around the outlet on the surface of the upper surface of the container body. Sample 4 is a packaging container in which the resin is not applied to the upper surface of the container body, and the resin is applied in a flat shape around the outlet on the back surface of the upper surface of the container body.

  As shown in FIG. 12, generation of wrinkles was able to prevent any sample from Sample 1 to Sample 4. For adhesion, sample 1 with a protruding reinforcing part on the surface of the container body is a flat coating of resin around sample 2 with a protruding reinforcing part only on the back of the container body and around the outlet. Compared with the sample 3 and the sample 4 which were done, since a cover body is adhere | attached also on the surface of a reinforcement part, it turns out that the adhesion area of a container main body and a cover body is large, and adhesiveness becomes high.

  In addition, regarding the amount of resin applied, it can be seen that Sample 1 and Sample 2 in which a resin is applied and provided with a reinforcing portion in a protruding shape can reduce the manufacturing cost because the amount of resin used is small. On the other hand, sample 3 and sample 4 are coated with resin in a flat shape around the outlet, so that it can be seen that the amount of resin used is large and the manufacturing cost is high.

  In addition, when the sample 1 is closed at the outlet with the lid, the lid is temporarily bonded to the protruding reinforcing portion. Therefore, even if the lid is loosened or becomes a wrinkle and temporarily bonded to the reinforcing portion. By pressing the lid body along the upper surface of the container body, the lid body is loosened and wrinkled, and the lid body is adhered to the container body without a gap. Thereby, in a packaging container like the sample 1, a thin cover body can be used. On the other hand, in Samples 2 to 4, since the adhesive is not temporarily bonded around the outlet and is bonded to the container body, the adhesive strength between the container body and the lid is high, and the lid is pressed against the container body. Since the lid does not stretch and cannot be attached without a gap, it can be seen that a thin lid is not suitable. Thereby, in the sample 1, the thickness of the lid can be reduced, and the manufacturing cost can be reduced.

  DESCRIPTION OF SYMBOLS 1 Packaging container, 2 Container main body, 3 Upper surface, 4 Cover body, 4a Fixing part, 5 Bundle, 6 Outlet, 7 Reinforcement part, 8 Adhesive layer, 9 Reinforcement part, 10 Base material layer, 12 Adhesive layer, 14 Print adhesive layer, 15 protective layer, 16 knob, 17 stopper, 18 linear part, 19 curved part, 20 concave part

Claims (4)

A container body comprising a flexible sheet having an outlet for taking out the wet sheet accommodated therein and having airtightness and water impermeability;
It is formed to be larger than the outlet, and is bonded to the periphery of the outlet of the container body, and is made of a flexible sheet that opens and closes the outlet and is airtight and water-impermeable, and faces the container body. On the surface, the container body is provided with a lid having an adhesive layer that can be reattached and removed,
A packaging container in which a protruding reinforcing portion is formed on a surface of the container body on which the lid is bonded.   The packaging container according to claim 1, wherein a re-adhesive / re-peelable adhesive layer is formed on a surface of the reinforcing portion.   The packaging container of Claim 1 or Claim 2 with which the recessed part engaged with the said reinforcement part is formed in the surface facing the said container main body of the said cover body. The lid has one end fixed to the container body,
The lid is peeled from the end opposite to the fixed portion toward the fixed portion when the outlet is opened, and from the fixed portion to the fixed portion when the outlet is closed. The packaging container of any one of Claim 1 thru | or 3 bonded together by the said container main body toward the edge part on the opposite side.

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