Wet tissue storage container

Abstract

To provide a wet tissue storage container capable of improving transportation efficiency, and of reducing a storage space, that becomes compact with no useless space.SOLUTION: A wet tissue storage container S provided with an opening 2 at an upper end part thereof comprises a container body 1 for storing a non-woven fabric roll 20 made from wet tissue P, and a lid body 3 attached in a freely attaching / detaching manner so as to close the opening 2 of the container body 1; and an adhesion margin 58 for bonding and fixing a sealing seal 53 is provided at the opening 2, and a wet tissue take-out part for taking out the wet tissue P is provided at the lid body 3. A ratio of a volume occupying an outer shape of the non-woven fabric roll 20 to a volume of an internal space in the container body 1 is 55% or more and 80% or less.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a wet tissue storage container. [Background technology]

[0002] Conventionally, various types of wet tissue storage containers have been proposed, which include a bottle that stores a nonwoven roll of wet tissues and a lid that can be attached and detached to close the opening of the bottle. The following Patent Document 1 discloses the basic structure of this type of container that stores and allows removal of wet tissues and the like. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 2772766 Summary of the Invention [Problem to be solved by the invention]

[0004] Bottle-type wet tissues are manufactured by filling a bottle with a roll of wound nonwoven fabric and then impregnating it with a chemical solution. Due to the manufacturing process, the volume of the nonwoven fabric roll is currently set to be significantly smaller than the internal volume of the bottle. However, the greater the difference between the volume of the nonwoven fabric roll and the volume of the bottle, the worse the transportation efficiency becomes, the more space is taken up during storage, and consumers have a negative impression that the contents are small compared to the size of the container. In addition, if the length of the nonwoven fabric roll is reduced, the frequency of replacement increases.

[0005] Specific reasons why the volume of the nonwoven fabric roll must be smaller than the internal volume of the bottle include the need for an upper space to prevent the liquid from scattering when the liquid is impregnated, the need to provide an inwardly protruding adhesive margin for attaching a seal to prevent drying during storage, and the need to increase the bottle's outer diameter by the thickness of the cap when the cap and bottle are flush (without steps) to improve the appearance (design) of the wet tissue bottle product. Another factor is the need to provide a certain clearance because the nonwoven fabric roll gets caught on the opening of the bottle when it is inserted into the bottle, causing production to stop.

[0006] The present invention has been made in consideration of the above problems, and has an object to provide a wet tissue storage container that is compact with little wasted space, thereby improving transportation efficiency and reducing storage space. [Means for solving the problem]

[0007] In order to solve the above problems, (1) the wet tissue storage container of the present invention comprises: A container body having an opening at an upper end and configured to store a nonwoven fabric roll of wet tissue; a lid body that is removably attached so as to close the opening of the container body, The opening of the container body is provided with an adhesive margin for adhering and fixing a seal thereto, The wet tissue storage container has a wet tissue removal portion provided on the lid for removing the wet tissue, The ratio of the volume of the outer shape of the nonwoven fabric roll to the internal space volume of the container body is It is characterized in that it is 55% or more and 80% or less.

[0008] (2) In the configuration of (1), the width W of the adhesive margin of the sealing seal of the container body is set to 1 mm or more and 4 mm or less, and the thickness N of the lid body is set to 1.0 mm or more and 3.5 mm or less. (3) In the configuration of (1) or (2), the difference between the outer dimension height H1 of the container body and the inner dimension height H2 of the container body is 1 mm or more and 10 mm or less; The difference between the inner height H2 of the container body and the height h of the nonwoven fabric roll is 5 mm or more and 20 mm or less, The nonwoven fabric roll is characterized in that its height h is 100 mm or more and 150 mm or less.

[0009] (4) In the configuration of (1) or (2), the difference between the diameter D of the opening of the container body and the diameter d of the nonwoven fabric roll is 1 mm or more and 10 mm or less. (5) In the configuration of (1), the container body and the lid are engaged with each other by a fitting structure. (6) The adhesive strength between the adhesive margin and the sealing member is characterized in that the maximum point load is 2000 gf or more and 4000 gf or less. Effect of the Invention

[0010] According to the present invention, a wet tissue storage container can be provided that is compact with little wasted space, thereby improving transportation efficiency and reducing storage space. [Brief description of the drawings]

[0011] [Figure 1] 1A is a vertical cross-sectional view of a wet tissue storage container according to a conventional example, and FIG. 1B is a vertical cross-sectional view of a wet tissue storage container according to an example of this embodiment. [Diagram 2] 2 is a vertical cross-sectional view of a main part of the wet tissue storage container according to the embodiment. FIG. [Diagram 3] 1(a) to 1(e) are diagrams showing examples of slit holes formed in a wet tissue dispensing portion provided in the lid of the present embodiment. [Figure 4] 1(a) to 1(d) are diagrams illustrating an example of a manufacturing process for the wet tissue storage container of the present embodiment. [Diagram 5]FIG. 2 is a perspective view showing an example of a wet tissue storage container according to the present embodiment, with the small lid of the lid body being open. [Figure 6] 2 is an exploded perspective view showing the underside of a lid of the wet tissue storage container according to the embodiment of the present invention; FIG. [Figure 7] FIG. 2A is a front view of a plug of a wet tissue storage container according to an embodiment of the present invention, and FIG. 2B is a cross-sectional view of the plug. [Figure 8] 1 is a view showing an upper region of a container body according to one configuration example of the present embodiment, as viewed from the outside. [Figure 9] 1A and 1B are diagrams showing an example of a component for hanging with fingers when removing the lid from the container body, where (a) shows a configuration with a protrusion and (b) shows a configuration with a recess. [Figure 10] 11 is a diagram for explaining a method for measuring the fitting strength between a container body and a lid body. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a wet tissue storage container according to the present invention will be described in detail with reference to the drawings. Figure 1(a) is a longitudinal cross-sectional view of a wet tissue storage container according to a conventional example, Figure 1(b) is a longitudinal cross-sectional view of a wet tissue storage container according to an example of this embodiment, and Figure 2 is an enlarged cross-sectional view of key parts of the lid and container body of the wet tissue storage container according to this embodiment. The configuration elements of the wet tissue storage container according to this embodiment, such as the shape of the lid and container body, are individually optimized according to the material of the wet tissue, the length over which the wet tissue is used, the purpose of use of the wet tissue, etc. Therefore, the configuration example shown in Fig. 1 is shown in a simplified manner, and the scope of this embodiment is not limited to the configuration shown in Fig. 1. The configuration shown in Fig. 2 is a diagram showing an example configuration that is slightly more specific than the configuration in Fig. 1.

[0013] 1 and 2, the wet tissue storage container S has a container body 1 that stores a nonwoven fabric roll 20 as a roll of wet tissues P, and a lid body 3 that is detachably attached to close an opening 2 of the container body 1. Note that a wet tissue removal portion 65 (see FIG. 3) provided on the lid body 3 is omitted in the illustrations of FIGS. 1 and 2.

[0014] (Container body) The container body 1 is configured as a cylinder with a bottom and an opening 2 at the upper end. As shown in FIG. 2, the container body 1 has a large-diameter outer cylinder 54 and a small-diameter inner cylinder 55, and the inner cylinder 55 is connected to the upper end of the outer cylinder 54 in the vertical direction via a connecting wall 59. An opening 2 is formed at the upper end of the inner cylinder 55, and at least a part of the upper end is used as an adhesive margin 58. As shown in FIG. 4(c), a seal 53 that closes the opening 2 is joined to the adhesive margin 58. In the configuration shown in FIG. 2, an example is shown in which an inner protrusion 57 that protrudes inward is provided at the upper end of the inner cylinder 55. The area including the upper surface of the inner protrusion 57 is configured as the adhesive margin 58. The width W of the adhesive margin 58 is usually set in the range of 1 mm to 4 mm. If the width Y of the adhesive margin 58 is smaller than 1 mm, the strength of the seal 53 is insufficient, and sealing failure may occur. If it is larger than 4 mm, the roll cannot be stored compactly. The preferred range of the adhesive margin 58 is 2 mm to 3 mm. The adhesive strength between the adhesive margin 58 and the seal 53 is preferably 2000 gf or more and 4000 gf or less in maximum point load. If it is less than 2000 gf, it may be opened unintentionally, and if it is more than 4000 gf, it becomes difficult to open. The adhesive strength between the adhesive margin 58 and the seal 53 is measured as follows. The seal 53 of the product (wet tissue) is attached directly to one chuck part (e.g., the upper part) of the Tensilon tensile tester, or the seal 53 is indirectly attached via a knob attached to the seal 53. The container body 1 is fixed to the other part (e.g., the lower part) of the Tensilon tensile tester. Then, the tensile speed of the Tensilon tensile tester is set to 300 mm / min, and the maximum load point is measured, and the measured value is regarded as the adhesive strength of the seal 53.

[0015] FIG. 8 is a view of the upper region of the container body according to one configuration example, seen from the outside. As shown in FIGS. 2 and 8, the adhesive margin 58 has a tapered surface formed so as to slope downward from the inside to the outside. Providing the inclination angle θ has the effect of improving the adhesiveness of the sealing seal 53. Also, providing the inclination angle θ allows the sealing margin to adequately repel pressure during sealing, thereby increasing adhesion. The inclination angle θ of the adhesive margin 58 relative to the horizontal line is preferably 5° or more and 25° or less, and more preferably the inclination angle θ is in the range of 10° or more and 20° or less. Within each of the above ranges, poor adhesion can be suppressed. 2, a female engagement portion 62 is provided on an inner cylinder outer peripheral surface 66 of the main body inner cylinder portion 55 of the container body 1. Also, a male engagement portion 56 is provided on a lid inner peripheral surface 64 of the lid body 3. In this embodiment, the female engagement portion 62 is formed by a main body inner cylinder recess 68, and the male engagement portion 56 is formed by a lid inner projection 67. 8, a pair of protrusions 23 provided at a predetermined interval in the vertical direction are provided so that a lid body inner protrusion 67 (not shown) of the lid body 3 can be fitted into a recess 24 between the pair of protrusions 23 to fix the lid body 3. The recess 24 provided between the pair of protrusions 23 is an example of the main body inner cylinder recess 68. From the viewpoint of compactness of the container and ease of use, it is preferable that the lid body inner protrusion 67 and the main body inner cylinder recess 68 have a fitting configuration rather than a screwing configuration.

[0016] As shown in FIG. 1(b), the outer height H1 of the container body 1 is measured from the bottom surface of the container that contacts the placement surface to the height of the top of the adhesive margin 58. The inner height H2 of the container body 1 is measured as the length from the highest point on the inside at the bottom of the container to the top of the container. Measurement is usually performed by dividing the container in two and measuring with a metal ruler. The difference between the outer height H1 and the inner height H2 of the container body 1 is set to 1 mm or more and 10 mm or less. If it is less than 1 mm, the upper space (the distance from the top surface of the roll to the sealing seal 53) becomes small and adhesion failure is likely to occur, and if it is more than 10 mm, compactness decreases. More preferably, it is 3 mm or more and 8 mm or less. The seal 53 is preferably a two-layer or three-layer structure consisting of a sealant and a barrier layer. An easy peel film or LLDPE (low density polyethylene) can be used as the sealant layer, and a vapor deposition film or aluminum foil can be used as the barrier layer. If strength is required, PET or OPP (biaxially oriented polypropylene) can be provided as the outermost layer.

[0017] The ratio of the volume of the outer shape of the nonwoven fabric roll 20 (also indicated as wet tissue P) to the internal space volume of the container body 1 is preferably 55% or more and 80% or less. The internal space volume of the container body 1 is measured by pouring water adjusted to 20°C into the empty container body 1. A stainless steel plate (e.g., MPSUS-100×100×t4, AS ONE) with an area larger than the outer diameter of the bottle is placed on the adhesive margin 58, and excess water is removed. The water is transferred to a measuring cylinder without spilling, and the volume is calculated. The same container is subjected to the same operation three times, and the average is taken as the measured value. The volume of the nonwoven fabric roll 20 is measured by first measuring the outer diameter of the nonwoven fabric roll 20 using a diameter rule (e.g., Muratec KDS diameter rule 10 width 2 m F10-02DM). The nonwoven fabric roll 20 is divided into approximately three parts, and measurements are taken at the top, middle, and bottom, and the average is taken as the outer diameter. Next, the height of the nonwoven fabric roll 20 is measured using a metal ruler conforming to the JIS. The nonwoven fabric roll 20 is left standing on a stand, a metal ruler is placed on the top surface, and the distance from the stand to the metal ruler is measured. Measurements are taken at approximately four points in the circumferential direction, and the average is taken as the measured value. The volume was calculated from the radius and the height of the nonwoven fabric roll 20 obtained above. Note that the volume includes the hollow part at the center of the nonwoven fabric roll 20.

[0018] 2, the wet tissue storage container S can be made compact by configuring the lower surface 63a of the lid body 63 so that it is almost in contact with the adhesive margin 58. However, a configuration in which a gap is formed between the adhesive margin 58 and the lower surface 63a so that the compactness of the wet tissue storage container S is not lost can also be adopted.

[0019] Polypropylene is preferably used as the material for constructing the container body 1. However, thermoplastic resins such as polyethylene, polyvinyl chloride, and ABS resin can also be used if necessary. The diameter D of the opening 2 of the container body 1 is preferably 85 mm to 105 mm, more preferably 90 mm to 100 mm. If it is smaller than 85 mm, the length of the roll of the contents becomes shorter, which causes a problem of increasing the frequency of replacement, and if it is larger than 105 mm, the compactness decreases. The diameter D of the opening 2 is measured by placing a metal ruler on the container. The container is divided into approximately eight sections in the circumferential direction, and the average of the measurements is taken as the measured value. The diameter d of the nonwoven fabric roll is measured with a diameter rule. It is preferable that the difference between the diameter D of the opening 2 of the container body 1 and the diameter d of the nonwoven fabric roll is 1 mm or more and 10 mm or less.

[0020] (Lid) 2, the lid 3 has a lid face 63 and a lid outer cylinder 61 extending below the outer edge of the lid face 63. As described above, the male engaging portion 56 is formed on the inside of the lid outer cylinder 61, and is configured to engage with the female engaging portion 62 on the container body 1 side so that the lid 3 can be detachably fixed to the container body 1. The height of the lid 3 is 15 mm to 35 mm, preferably 20 mm to 30 mm. When it is within the above range, it can be made compact while retaining the functions of a lid, such as an access opening and a hinge. The lid 3 is molded by injection molding or the like using a thermoplastic resin, and polyethylene, preferably low-density polyethylene, etc. is used. If such a material is used, the thickness of the lid 3 can be easily optimized. The engagement between the container body 1 and the lid 3 is configured to be detachable, and a fitting structure is preferable as the detachable engagement portion, because the thickness of the lid 3 can be optimized more easily when a fitting structure is adopted than when a male screw and a female screw are used as a screw structure. The width of the adhesive margin 58 and the thickness of the lid 3 are each measured using a vernier caliper. The lid 3 is divided into approximately four parts in the circumferential direction of the cap, and the average is taken as the measured value. If the thickness of the lid body 3 is small, it is difficult to remove the lid body 3 from the container, and if the thickness of the lid body 3 is large, the compactness decreases. The thickness N of the lid body 3 is set to 1.0 mm or more and 3.5 mm or less, preferably 1.5 mm or more and 3.0 mm or less, and more preferably 2.0 mm or more and 3.0 mm or less.

[0021] 9, it is preferable to provide a protrusion 21 (see FIG. 9(a)) and a recess 22 (see FIG. 9(b)) on the outer peripheral wall 3a of the lid body 3 for use as a finger hook when removing the lid body 3 from the container body 1. The protrusion 21 and the recess 22 may be provided only in a partial region in the circumferential direction of the lid body 3, or may be provided on the entire circumference of the lid body 3 as necessary (not shown). The fitting strength between the container body 1 and the lid 3 is set to 5 N or more and 100 N or less, and more preferably 30 N or more and 60 N or less. By setting each strength in such a range, it is possible to prevent the lid 3 from coming off unintentionally during use even if the thickness of the lid outer cylinder portion 61 of the lid 3 is formed thin. In addition, the replacement work of the nonwoven fabric roll 20 is also made easy. FIG. 10 is a diagram for explaining a method for measuring the fitting strength between the container body and the lid. The above-mentioned method for measuring the fitting strength also uses a Tensilon tensile tester. A plate 70 made of metal or resin, etc., to which a string 71 is attached is prepared. The plate 70 has a shape and size that allows it to abut against the inner upper surface of the lid body 3. The plate 70 is, for example, disk-shaped as shown in FIG. 10, and is configured with a high-strength string 71 such as wire or octopus thread attached to the center of the upper side of the plate 70. Then, after the string 71 is threaded from the inside to the outside of the wet tissue removal hole 17, the string 71 is attached to a chuck part 72 above the Tensilon tensile tester, and the container body 1 is fixed below the Tensilon tensile tester. Then, the tensile speed of the Tensilon tensile tester in the upward direction as shown by the arrow 73 is set to 300 mm / min, and the maximum point load when the lid body 3 is removed from the container body 1 is measured as the fitting strength.

[0022] (Wet tissue removal section) In this embodiment, there are no particular limitations on the material, configuration, and shape of the wet tissue removal portion 65 (see FIG. 3) that is provided on the lid body 3 and through which the wet tissue P is removed. This is optimized as appropriate based on adjustment items for the container body 1 and the wet tissue P. Note that while the wet tissue removal portion 65 often uses a plug that is a separate member from the lid body 3, this does not exclude cases where it is provided integrally with the material of the lid body 3.

[0023] FIG. 3(a) to (e) are plan views showing examples of the shape of a slit hole 17 formed in a wet tissue outlet 65 provided in the lid of this embodiment. The shape of the slit holes 17 can be variously configured by appropriately combining the length, number, and shape of the slit holes 17. For example, when the main extending direction of the slit hole 17 is set to the horizontal direction, the slit hole 17b formed by a line segment as shown in Fig. 3(a) can be used. Also, as shown in Fig. 3(c), it can be formed by only a circular slit hole 17a. It is also possible to change the size of the line segment or circular slit to a plurality of sizes according to the thickness and material of the nonwoven fabric. Also, as shown in Fig. 3(d), it can be formed by forming small circular slit holes 17c, 17c at both ends of the slit hole 17b of a line segment extending in the horizontal direction, and providing a large circular slit hole 17a in the center of the slit hole 17b.

[0024] The lines formed in the wet tissue dispensing section 65 are not limited to the horizontal direction, but may be composed of multiple intersecting lines. Figure 3(e) shows a shape in which a horizontally extending slit hole 17b and a vertically extending slit hole 17b intersect at approximately a right angle, and further, a circular slit hole 17a is provided at the intersection. 3(b), the slits 17 may be configured by arranging a plurality of wavy slits 17d in a row, each of which has a line segment extending in the horizontal or vertical direction with a plurality of projections and recesses. The height and length of each wave of the wavy slits 17d are appropriately set so that the nonwoven fabric can be easily taken out and the nonwoven fabric protruding upward from the wavy slits 17d can be easily grasped and held with fingers. In general, the wavy slits 17d are shaped to bite the wet tissue P in a wavy manner, and therefore have a higher function of holding the nonwoven fabric in the wet tissue removal section 65 than the straight slits 17b. The sheet removal resistance is 1.5 N to 6.0 N, and preferably 1.7 N to 5.5 N. If the resistance is less than 1.5 N, the sheet may come out continuously, while if the resistance is more than 6.0 N, the lid 3 may come off when the sheet is pulled out.

[0025] (Wet wipes) For the wet tissues P, the length of the nonwoven fabric roll 20 is set to 20 m or more and 28 m or less, and more preferably 21 m or more and 23 m or less. If it is less than 20 m, the problem of increasing the frequency of replacement arises, and if it is more than 28 m, the compactness decreases. The sheet length (perforation pitch) of the nonwoven fabric roll is set to 150 mm or more and 200 mm or less, and more preferably 170 mm or more and 190 mm or less, to make it easy to wipe. The basis weight of the sheet is 30 gsm to 40 gsm, preferably 33 gsm to 36 gsm. If it is less than 30 gsm, the wiping ability decreases. If it is more than 40 gsm, the adhesion of the tail seal applied to the end of the roll is poor, and insertion failure is likely to occur when the nonwoven fabric roll is inserted into a container.

[0026] The diameter of the nonwoven fabric roll 20 is preferably set to 70 mm or more and 90 mm or more, and more preferably set to 75 mm or more and 85 mm or more. By setting it in this manner, the size of the bottle in the wet tissue storage container S can be set optimally while taking compactness into consideration. The diameter d of the nonwoven fabric roll 20 is measured with a diameter rule. The height of the nonwoven fabric roll 20 is 100 mm or more and 150 mm or less, and preferably 110 mm or more and 130 mm or less. If it is smaller than 100 mm, it is not suitable for wiping. If it is larger than 150 mm, the compactness is reduced and the tail seal is easily peeled off, which makes it easy for roll insertion failure to occur. If it is smaller than 100 mm, the sheet becomes small and the wiping performance is reduced. The chemicals used in general wet tissues P can be used as the chemicals impregnated into the nonwoven fabric roll 20. The ethanol concentration in the squeezed liquid of the sheet is preferably 0.0 wt % or more and 30 wt % or less. By setting it in this way, even if the adhesive margin 58 is short, the sealing seal 53 will not peel off during storage. The alcohol concentration of the squeezed liquid is measured by squeezing a sheet impregnated with the drug solution. The alcohol concentration can be measured by a known method (e.g., the alcohol number measurement method of the Japanese Pharmacopoeia: Method 2 gas chromatography, etc.).

[0027] The nonwoven material is a spunlace nonwoven fabric made by hydroentangling rayon and PET, and may or may not have an embossed pattern, but in order to make the nonwoven roll 20 compact, a plain type without an embossed pattern is preferable. The blending ratio of rayon in the nonwoven fabric is preferably from 40% to 60%, and more preferably from 45 to 55%. By setting the blending ratio within each of the above ranges, it becomes difficult to compactly wind the roll. In the configuration according to the present embodiment, the grounds for limiting the above numerical values ​​will be explained based on the descriptions of examples and comparative examples to be described later.

[0028] (Wet tissue storage container manufacturing process) 4(a) to 4(d) are diagrams illustrating the manufacturing process of the wet tissue storage container of this embodiment. FIG. 4(a) is a diagram showing how a nonwoven fabric roll 20 made of nonwoven fabric is stored inside the container body 1. When realizing compactness, it is necessary that the nonwoven fabric roll 20 is stored properly inside the container body 1 without getting caught on the factory production line. FIG. 4(b) is a diagram showing the state of spraying of the medicine from spray part 52, and the shape and size, etc., of the inside of wet tissue storage container S must be such that the medicine can be sprayed well from spray part 52.

[0029] FIG. 4(c) is a diagram showing the state in which the sealing seal 53 has been attached to the adhesive margin 58 on the container body 1. While aiming for compactness, it is important that the adhesive margin 58 has a shape and area that allows the sealing seal 53 to be stably attached. 4(d) is a diagram showing a state in which the container body 1 and the lid body 3 are detachably attached. As a preferred example, the lid body 3 is detachably attached to the container body 1 by fitting a fitting convex portion (not shown) provided on the container body 1 into a fitting concave portion (one example of the female engagement portion 62, not shown) formed on the inside of the lid body 3. In each of the steps in Figs. 4(a) to 4(d), in order to realize compactness without compromising the product quality and ease of use, it is important to set the above numerical ranges.

[0030] (Example configuration) A configuration example shown in Figures 5 to 7 below is a more specific embodiment of the wet tissue storage container according to this embodiment. Note that the description of this configuration example is merely an example, and the description of the configuration example does not limit the configuration of this embodiment described above in Figures 1 to 4, 8, and 9. As shown in FIG. 5, the nonwoven fabric roll 20 of wet tissues P (see FIG. 1) stored in the container body 1 has easy-to-tear sections formed at predetermined intervals in the longitudinal direction, and the base fabric such as paper or nonwoven fabric is pre-impregnated with a medicinal solution containing lotion, alcohol components, disinfectants, preservatives, etc.

[0031] The lid body 3 has a top plate 5 (an example of the lid surface body 63) and is cylindrical in shape with an open lower end, and is equipped with a wet tissue insertion hole 6 (an example of a wet tissue removal portion 65) drilled in the top plate 5, a plug 8 that closes the wet tissue insertion hole 6, a small lid 7 that covers the wet tissue insertion hole 6 in an openable and closable manner, and a plug locking portion 9 that protrudes from the underside of the top plate 5 and locks the plug 8. The lid body 3 is provided with a hinge portion 40 that pivotally supports the small lid 7 in an openable and closable manner. The lid body 3 has a lid body inner convexity 67 formed on the inner surface of its lower end, preferably along the circumferential direction, and the lid body inner convexity 67 is configured to be freely attached and detached to the main body inner tube concave portion 68 (see, for example, Figure 2) provided in the container main body 1.

[0032] The cover 3 is molded by injection molding or the like using a thermoplastic resin such as polyethylene, polypropylene, polyvinyl chloride, or ABS resin. The top plate 5 of the lid body 3 has a stepped-down surface 12 formed in the center of the top surface 11, which is one step lower than the top surface 11. A circular surrounding wall 13 is erected on the stepped-down surface 12, and a circular wet tissue insertion hole 6 is drilled in the center of the inner side of the surrounding wall 13. The wet tissue insertion hole 6 is closed by a plug 8, and the size of the wet tissue insertion hole 6 is such that a fingertip can be inserted into the wet tissue insertion hole 6. The spout 8 is formed with a slit hole 17 as an outlet hole for pulling out the wet tissue.

[0033] In addition, a recessed area 14 that is lower in height than the surrounding area is formed on the top plate 5 of the lid body 3, and is continuous with the stepped surface portion 12 with a step, and this recessed area 14 is formed so as to continue to the outer peripheral wall of the lid body 3. A small lid 7 is connected to the portion of the lid body 3 opposite the recessed area 14, and the small lid 7 is formed with a double fitting wall 15 that fits tightly to sandwich the surrounding wall 13 and makes the inside of the surrounding wall 13 airtight. By closing the small lid 7, the fitting wall 15 fits tightly into the surrounding wall 13, making the inside of the surrounding wall 13 airtight, which makes it possible to prevent the wet tissues P stored in the container body 1 from drying out. Although the recessed area 14 can be formed continuously and entirely by inclination, the structure of the lower surface of the lid body 3 can be simplified by providing many flat areas.

[0034] As shown in FIG. 6, a protruding region 18 is formed on the lower surface of the recessed region 14 so as to correspond to the recessed region 14. As shown in FIG. 5 to 7, a plug locking part 9 is provided on the underside of the top plate 5 so as to surround the wet tissue insertion hole 6 and conform to the shape of the leg part 31 of the plug 8, and the leg part 31 of the plug 8 fits into the plug locking part 9 to be locked. The leg part 31 of the plug 8 is made of a flexible elastic material as described later, and therefore can be easily attached to and detached from the plug locking part 9. FIG. 7(a) is a front view of the outlet plug of the wet tissue storage container according to this embodiment, and FIG. 7(b) is a cross-sectional view of the plug. Further explanation will be given with reference to FIG. 6 and FIG.

[0035] The plug 8 is made of a flexible elastic material, and the hardness of the plug 8 is preferably 70-100, more preferably 75-95, and further preferably 80-90 in durometer hardness. The material for the plug 8 may be, for example, a thermosetting elastomer (styrene-based, vinyl chloride-based, ester-based, olefin-based, amide-based, or urethane-based) or a thermosetting rubber (silicone rubber, urethane rubber, or fluororubber) alone or in combination with two or more of these. In particular, from the standpoint of durability and chemical resistance, a styrene-based thermoplastic elastomer is desirable. The thickness of the plug 8 is preferably 3 to 6 mm.

[0036] The plug 8 has a cylindrical body portion 30 that closes the wet tissue insertion hole 6, and legs 31 to 34 that extend outward from the body portion 30. The body portion 30 may have any shape so long as it can close the wet tissue insertion hole 6. The body portion 30 is formed with a slit hole 17 through which the wet tissue is pulled out. The diameter of the body portion 30 is preferably 15 to 30 mm, more preferably 18 to 25 mm, and further preferably 20 to 23 mm, so as to correspond to the wet tissue insertion hole 6.

[0037] In the illustrated example, the legs 31 to 34 are formed so as to extend outward from the lower end of the body 30, but the legs 31 to 34 may also be formed so as to extend outward from the middle position of the body 30. The legs 31, 32 are formed from the lower end of the body 30 so as to be symmetrical left and right around the body 30. The legs 33, 34 are formed from the lower end of the body 30 so as to be symmetrical up and down around the body 30. The legs 31, 32 and the legs 33, 34 are formed asymmetrical (irregularly shaped) left and right and up and down around the body 30 so as to prevent the plug 8 from being attached in the wrong direction, and optimal ease of removal can be maintained even if the plug is removed and then reattached. 7, leg portion 31 has tapered portions 31a and 31b extending outward from body portion 30. Leg portion 32 has tapered portions 32a and 32b extending outward from body portion 30.

[0038] The plug locking part 9 is formed to have a shape into which at least a part of the outer shape of the plug's legs 31, 32 fits, and in the example shown in the figure, it is formed so that the entire outer shape of the plug's legs 31, 32 fits. For example, the plug locking part 9 can also be provided by cutting out a part of it. As shown in Figures 6 and 7, the plug engaging portion 9 is formed with tapered portions 9a, 9b corresponding to the tapered portions 31a, 31b of the leg portion 31, and with tapered portions 9c, 9d corresponding to the tapered portions 32a, 32b of the leg portion 32.

[0039] As shown in FIG. 7, slit hole 17 has a circular slit hole 17a located approximately in the center of the body portion, a slit hole 17b formed in a linear shape centered on circular slit hole 17a, and circular end slit holes 17c located on each of both ends of slit hole 17b.

[0040] In the configuration shown in Figures 6 and 7, the diameter of the circular slit hole 17a and the hardness of the periphery are selected to be optimal for inserting a finger through the first wet tissue from the back side of the lid body 3 to the front side. The size of the round slits 17a and 17c is preferably set to a size that provides resistance to prevent the second sheet of wet tissue from being torn off at the perforation and coming out together.

[0041] 6 and 7, the legs 31, 32 of the plug are provided so that the slit hole 17b is located in the left-right direction when the small lid 7 is opened and viewed from the front. With this configuration, when the legs 31, 32 of the plug 8 are fitted into the plug locking part 9, the plug can be positioned so that the slit hole 17b of the withdrawal hole is in the left-right direction (the direction of the legs 31, 32) when the small lid 7 is opened and viewed from the front. If the slit hole 17b is formed vertically when removing the wet tissue P, the wet tissue P will be biased downward, resulting in less resistance to removal. In response to this, by positioning the spout 8 so that the slit hole 17b is in the left-right direction when the small lid 7 is opened and viewed from the front, it is possible to make the resistance to removal appropriate and improve usability.

[0042] In the wet tissue storage container S configured in this manner, the wet tissue P can be pulled out as follows. First, the small lid 7 of the lid body 3 is opened to open the wet tissue insertion hole 6. Next, the wet tissue P is inserted into the withdrawal hole of the spout 8 to enable it to be pulled out. In this manner, the task of inserting the wet tissue P into the withdrawal hole can be easily performed, and the wet tissue P can be easily made to be able to be pulled out.

[0043] (Examples 1 to 9) Examples 1 to 9 were manufactured with the dimensions set as shown in Table 1 below. Similarly, Comparative Examples 1 to 8 manufactured corresponding to the respective dimensions shown in Table 1 are shown in Table 2 below. In addition, In the above examples and comparative examples, evaluation was carried out based on the following evaluation items. [Evaluation items] (1) Compactness Thirty test subjects evaluated the compactness based on the size of the container and roll. Good (〇) 30-21 people answered good Average (△): 20-11 people answered "good" Bad (×)...10~0 people answered good (2)Easy to wipe off Thirty test subjects used the wet tissues and evaluated their ease of wiping. Good (〇) 30-21 people answered good Average (△): 20-11 people answered "good" Bad (×)...10~0 people answered good (3) Low incidence of unintentional opening of seals Wet tissues were manufactured, transported, stored, and carried, and before opening, they were evaluated for any loose or peeling seals. Good (〇)...Seal hardly ever lifts or peels off Normal (△): The seal is slightly loose or peeling off. Poor (×) - Seal lifting and peeling occurs frequently (4) Ease of opening the seal Thirty test subjects evaluated the ease of opening the seal. Good (〇) 30-21 people answered good Average (△): 20-11 people answered "good" Bad (×)...10~0 people answered good (5) Ease of removing the lid Thirty test subjects evaluated the ease of removing the lid. Good (〇) 30-21 people answered good Average (△): 20-11 people answered "good" Bad (×)...10~0 people answered good (6) Roll insertion failure The occurrence of roll insertion failures during production was evaluated. Good (〇) · ... Normal (△): Roll insertion problems rarely occur. Bad (×) - Roll insertion failure occurs frequently

[0044] [Table 1]

[0045] [Table 2]

[0046] As shown in Tables 1 and 2 above, the wet tissue storage container of this embodiment has provided a compact wet tissue storage container without compromising ease of manufacture or ease of use for the user.

[0047] Although the present invention has been described above using the embodiments, it goes without saying that the technical scope of the present invention is not limited to the scope of the above embodiments, and it is clear to those skilled in the art that various modifications and improvements can be made to the above embodiments. Furthermore, it is clear from the description of the claims that forms with such modifications or improvements can also be included in the technical scope of the present invention. [Explanation of symbols]

[0048] S: Wet tissue storage container P: Wet wipes 1: Container body 2: Opening 3: Lid 6: Wet tissue insertion hole (an example of a wet tissue removal part) 20: Nonwoven fabric roll 51: Fitting protrusion 53: Seal 58: Glue it 65: Wet tissue removal section W: Width of adhesive margin N: Thickness of the lid H1: External height of container body H2: Internal height of container body h: Height of nonwoven roll D: Diameter of the opening of the container body d: diameter of nonwoven roll

Claims

1. A container body having an opening at an upper end and configured to store a nonwoven fabric roll of wet tissue; a lid body that is removably attached so as to close the opening of the container body, The opening of the container body is provided with an adhesive margin for adhering and fixing a seal thereto, The wet tissue storage container has a wet tissue removal portion provided on the lid for removing the wet tissue, The ratio of the volume of the outer shape of the nonwoven fabric roll to the internal space volume of the container body is A wet tissue storage container having a vacancy rate of 55% or more and 80% or less.

2. 2. The wet tissue storage container according to claim 1, wherein the width W of the adhesive margin of the sealing seal of the container body is set to 1 mm or more and 4 mm or less, and the thickness N of the lid body is set to 1.0 mm or more and 3.5 mm or less.

3. A difference between an outer height H1 of the container body and an inner height H2 of the container body is 1 mm or more and 10 mm or less, The difference between the inner height H2 of the container body and the height h of the nonwoven fabric roll is 5 mm or more and 20 mm or less, 3. The wet tissue storage container according to claim 1, wherein the height h of the nonwoven fabric roll is 100 mm or more and 150 mm or less.

4. The difference between the diameter D of the opening of the container body and the diameter d of the nonwoven fabric roll is 3. The wet tissue storage container according to claim 1, wherein the thickness is 1 mm or more and 10 mm or less.

5. The wet tissue storage container according to claim 1 , wherein the container body and the lid are engaged with each other by a fitting structure.

6. 2. The wet tissue storage container according to claim 1, wherein the adhesive strength between the adhesive margin and the sealing seal is such that the maximum point load is 2000 gf or more and 4000 gf or less.

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