Chemical solution application tool package

The packaging design addresses the issues of solution overflow and adherence by using a concave recess and uneven ribs to facilitate smooth applicator removal and prevent chemical solution adhesion, ensuring effective application and user convenience.

JP2025109371APending Publication Date: 2025-07-25AGLIS
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Patent Information

Application Number
JP2024003216
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-01-12
Publication Date
2025-07-25

AI Technical Summary

Technical Problem

Conventional packaging designs for chemical liquid applicators often result in the squeezing or overflowing of the chemical solution during applicator removal, leading to insufficient application on the affected area, and the chemical solution adhering to the user's fingertips, especially with colored solutions, causing staining issues.

Method used

A packaging design featuring a container body with a concave portion at the bottom of the first storage recess, allowing the applicator to be easily pulled out while minimizing contact with the chemical solution, and incorporating uneven ribs and strategic seal width changes to prevent adhesion and ensure smooth discharge.

Benefits of technology

The design allows for sufficient application of the chemical solution to the affected area while reducing adherence to the user's fingertips, preventing stains and waste, and ensuring efficient impregnation of the liquid-absorbing member.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a chemical solution application tool package which allows only a small amount of chemical solution to be squeezed out from a solution absorbing member when, after the chemical solution is impregnated into the solution absorbing member of an application tool, it is taken out of the package, and which can apply a sufficient amount of chemical solution to an affected part.SOLUTION: A package 1 is constituted by attaching an application tool 2 which comprises by a solution absorbing member 22 for absorbing a chemical solution 4 being mounted on an end part of a shaft part 21 to a storage recessed place 31, and by attaching a protective film 5 to an upper surface of a container body 3 which stores the chemical solution 4 in a storage recessed place 32 respectively. At a bottom part of the storage recessed place 31 of the container body 3, a recessed part 34 is provided which is recessed toward the storage recessed place 31 across both longer sides of the storage recessed place 31, and when the application tool 2 where the chemical solution 4 is impregnated in the solution absorbing member 22 is taken out, the container body 3 is bent at the recessed part 34 to open an opening widely, and squeezing out of the chemical solution 4 is suppressed.SELECTED DRAWING: Figure 1
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Description

Technical Field

[0001] The present invention relates to a packaging body for a chemical liquid applicator (hereinafter also simply referred to as a "packaging body") used when applying a chemical liquid such as a disinfectant or other liquid medicine or cosmetic to the body.

Background Art

[0002] When disinfecting a wound or disinfecting the skin, etc., in order to save the trouble of separately preparing an applicator for a disinfectant and a medicine, and to prevent wasteful use of the disinfectant, a packaging body is used which is hermetically packaged in a container having a recess for separately filling and storing a chemical liquid and an applicator (see, for example, Patent Document 1). Further, as an applicator packaged together with a chemical liquid in the above packaging body, a flat portion is integrally provided at one end of a shaft portion having a rectangular cross section, and a protruding portion protruding outward to the left and right is provided at the other end, and a liquid-absorbing member made of a material having good liquid-absorbing properties such as a sponge is fixed to the flat portion (see, for example, Patent Document 2).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] When treating a affected part by applying a chemical liquid using the above packaging body, first, the portion of the recess filled with the chemical liquid in the container is pressed with a finger to discharge the chemical liquid to the side of the recess where the applicator is stored, so that the liquid-absorbing member of the applicator is impregnated with the chemical liquid. Then, the applicator is taken out from the opening formed by peeling off the protective film attached to the container surface, and the affected part is coated by applying the liquid-absorbing member that has absorbed the chemical liquid.

[0005] Incidentally, the liquid-absorbing member of the applicator housed in such a package is often formed to have a size that fits snugly within the recess in which the applicator is housed so that it can absorb all of the chemical solution filled in the package. Therefore, when pulling out the applicator impregnated with the chemical solution from the opening by absorbing the chemical solution in the liquid-absorbing member during the treatment of applying the chemical solution to the affected area, the liquid-absorbing member that has swelled by absorbing the chemical solution hits the inner surface of the recess or the protective film and is pushed, causing the absorbed chemical solution to be squeezed out or overflow. If the amount of the chemical solution contained in the liquid-absorbing member decreases during the operation of taking out the applicator from the package, it may not be possible to apply enough chemical solution to the affected area. When the affected area is large, it may be necessary to perform an operation of taking out an applicator impregnated with the chemical solution from another package, which may result in a two-step process.

[0006] Also, in a conventional package, when the chemical solution is released to the side of the recess in which the applicator is housed and impregnates the liquid-absorbing member of the applicator, the chemical solution that pops out into the recess more forcefully than the release operation enters and adheres between the upper surface of the shaft portion of the applicator and the inner surface of the protective film, and between the lower surface of the shaft portion and the inner surface of the recess. As the chemical solution adheres, the upper and lower surfaces of the shaft portion are in close contact with the inner surface of the protective film and the inner surface of the recess, respectively. Due to the capillary action acting between the adhered members, the adhered chemical solution moves to the upper part of the applicator, and when taking out the applicator from the opening, the chemical solution may adhere to the fingertips of the user holding the upper part of the applicator. Furthermore, when the chemical solution is released into the recess in which the applicator is housed, it also adheres between the edge of the recess and the edge of the protective film. Similar to the above, it moves upward along the capillary action between the closely adhered edges and reaches near the opening formed by peeling off the protective film. When the user touches the periphery of the opening with their fingertips to take out the applicator, the chemical solution may adhere to the fingertips. When the chemical solution is a colorless liquid such as alcohol, the adhesion of the chemical solution to the fingertips is not a problem at all. However, in the case of a coloring solution such as iodine tincture, the user has to wipe or wash off the chemical solution adhering to the fingertips, and the fingertips may touch the clothes and stain the clothes with the chemical solution.

[0007] In the case of a conventional package, a recess for storing the applicator of the container and a recess for filling the chemical solution are provided adjacent to each other. A protective film is attached to the upper surface of the container to seal both recesses. When impregnating the liquid-absorbing member of the applicator with the chemical solution, the recess filled with the chemical solution is pressed with a finger, and the flow pressure of the chemical solution is applied to the portion of the protective film pasted between both recesses, causing the protective film at that portion to peel off and connecting both recesses, so that the chemical solution is discharged to the side of the recess where the applicator is stored. In this case, in order for the protective film to peel off smoothly under the flow pressure of the chemical solution, the protective film is pasted in a narrow width between the two recesses. However, when the protective film is adhered by heat sealing, the protective film heated by the heat sealer at this narrow portion may be pseudo-adhered in an unintended range or portion. In such a case, the chemical solution may not be discharged into the recess where the applicator is stored in the intended direction. Even if the chemical solution is discharged obliquely or in a plurality of thin streaks toward the recess storing the applicator, as long as the chemical solution flows into the recess, it is possible to sufficiently impregnate the liquid-absorbing member of the applicator. However, if the chemical solution is not discharged straight toward the recess and a large amount of the chemical solution is discharged to the periphery inside the recess, as described above, the amount of the chemical solution adhering between the edge inside the recess and the edge of the protective film and moving upward along both edges increases, making it easier for the chemical solution to adhere to the fingertips of the user, which is not preferable. The end of the recess for storing the applicator preferably has a shape that can surely receive the chemical solution inside the recess even if the discharge direction of the chemical solution is not straight.

[0008] In view of such problems of the prior art, in a package in which an applicator and a chemical solution are packaged in one container, after impregnating the liquid-absorbing member of the applicator with the chemical solution, when taking this out of the package, the liquid-absorbing member that has absorbed and swollen with the chemical solution hits the inner surface of the container and the liquid-absorbing member is pushed, so as to retain a small amount of the chemical solution that has been squeezed out or overflowed from the liquid-absorbing member, and to enable application of a sufficient amount of the chemical solution to the affected area. Another object of the present invention is to make it difficult for the chemical solution to adhere to the fingertips of the user holding the applicator when taking out the applicator from the package. Furthermore, an object of the present invention is to enable the chemical solution to be properly and waste-free impregnated into the liquid-absorbing member of the applicator.

Means for Solving the Problems

[0009] To solve the above problems, the package of the present invention comprises an applicator having a liquid-absorbing member attached to an end of a shaft portion for absorbing a chemical solution, a first storage recess for accommodating the applicator, and a second storage recess adjacent to the first storage recess and filled with the chemical solution, and is composed of a container body provided with a flange portion around the upper part of both storage recesses. In the package in which a protective film is attached to the upper surface of the container body in which the applicator and the chemical solution are respectively placed in the two storage recesses and the inside of the two storage recesses is sealed, It is characterized in that a concave portion recessed toward the inside of the storage recess is provided at the bottom of the first storage recess of the container body across both longitudinal sides of the storage recess.

[0010] According to the package with the above structure, the recess provided in the first storage recess of the container body is a constricted part at the bottom of the recess, and the container body has a structure that can easily bend the first storage recess at this part. When peeling off the protective film from the end of the container body to take out the applicator from the package, with the side of the second recess filled with the chemical solution facing downward, pinch the end of the protective film located at the upper part of the package with one hand, and pinch the end of the container body with the other hand and pull the end of the protective film downward to peel it off from the container body. Then, the side where the end of the container body was pinched will bend backward with the recess as the boundary due to the peeling of the protective film. Then, if this is folded 180° as it is so that the bottom that was located above the recess of the container body overlaps with the bottom that was located below, and the container body is folded in half and supported with fingers, the container body will curve into a dish-shaped cross-section and the top of the folded container body will open widely (see Fig. 8). Also, by folding the container body in half at the recess, the shaft part of the applicator hits the bottom of the folded part of the container body, causing the applicator to lift up, making it easier to pinch the end of the applicator. Therefore, if the applicator is taken out of the container body by pinching its end in this state, the liquid-absorbing member swollen by the impregnation of the chemical solution can be smoothly pulled up from the widely opened unsealing opening, and the amount of the chemical solution that comes into contact with the protective film and the inner surface of the container body and is rubbed off during the process of pulling up the liquid-absorbing member can be reduced, and it becomes possible to apply a sufficient amount of the chemical solution to the affected area (see Figs. 9 and 10).

[0011] In the package with the above structure, the applicator is characterized in that a flat part protruding left and right of the shaft part is provided at one end of the shaft part, a liquid-absorbing member is attached to the lower surface of this flat part, and a number of uneven horizontal ribs are provided on the upper surface side and the lower surface side of the shaft part.

[0012] According to this, when the chemical solution is discharged into the first storage recess in which the applicator is stored, and the chemical solution enters between the upper surface of the shaft portion and the inner surface of the protective film and between the lower surface of the shaft portion and the inner surface of the recess, and both the upper and lower surfaces of the shaft portion of the applicator are in close contact with the inner surface of the protective film and the inner surface of the recess, since a large number of uneven horizontal ribs are formed on both the upper and lower surfaces of the shaft portion of the applicator as described above, the degree of adhesion between the two members decreases, and the upward movement of the chemical solution along the shaft portion of the applicator due to capillary action is suppressed, and it is possible to prevent the chemical solution from adhering to the fingertips of the user holding the upper part of the applicator.

[0013] It is preferable that the uneven horizontal ribs are provided over a range exceeding the axial intermediate portion of the shaft portion from the side of the end portion where the flat portion of the shaft portion is provided in order to effectively suppress the upward movement of the chemical solution. A plurality of uneven horizontal ribs may be provided in a lump at predetermined intervals along the shaft portion, but it is preferable to provide them continuously along the shaft portion. The interval between the convex portions forming the uneven ribs (the width of the concave portion) and the height of the convex portion (the width in the height direction of the unevenness) may be set to be constant, or may be different between adjacent uneven ribs, and the interval and height can be set appropriately. When the shaft portion is provided with a rectangular cross-section, it is difficult for the left and right side surfaces of the shaft portion to contact the inner surface of the protective film and the inner surface of the recess, but a plurality of uneven ribs may be provided on both side surfaces. Note that the applicator can be provided with a cross-section of its shaft portion in an appropriate shape such as a rectangular shape, a triangular shape, or other polygonal shapes, or a circular shape, an elliptical shape, etc.

[0014] In the package having the above configuration, the applicator can be configured such that a flat portion protruding to the left and right of the shaft portion is provided at one end of the shaft portion, a liquid-absorbing member is attached to the lower surface of the flat portion, and a fan-shaped protruding portion is provided at the other end of the shaft portion. According to this, in a state where the applicator is stored in the first storage recess of the container body, the gap between the portion where the protruding portion of the shaft portion is provided and the inner surface of the storage recess around it becomes small. Even when slight vibration or impact is applied during transportation of the package, the protruding portion contacts the inner surface of the storage recess to restrict the displacement of the applicator in the storage recess, preventing the applicator from rotating around the axial direction and holding the applicator in the initial storage orientation.

[0015] In the package having the above configuration, the protective film is attached to the container body along a strip-shaped seal portion laid out so as to surround the periphery of the first storage recess and the second storage recess on the flange portion of the container body. In the strip-shaped seal portion surrounding the periphery of the first storage recess, it is preferable that two width switching portions where the width switches from narrow to wide and from wide to narrow are arranged at substantially the middle portion in the longitudinal direction of the first storage recess.

[0016] According to this, as described above, when the chemical solution is released into the first storage recess storing the applicator, it enters the portion where the edge of the first storage recess and the edge of the protective film are in close contact, and the chemical solution moves upward along both edges due to capillary action. By arranging a portion where the width switches in the seal portion surrounding the periphery of the first storage recess, the movement of the chemical solution can be interrupted at the portion where the width of the seal portion switches, preventing the chemical solution from reaching near the unsealed opening formed by peeling off the protective film. Further, if the width of the strip-shaped seal portion surrounding the periphery of the first storage recess changes at a substantially middle portion in the longitudinal direction of the first storage recess, with the side of the second storage recess being wide and the opposite side being narrow, the user can be informed of the proper opening position during the process of peeling the protective film from the container body. That is, if the end of the protective film is pinched and pulled from the end of the container body on the side where the first storage recess is provided, since the seal portion is narrow from the end of the first storage recess to its substantially middle portion in the longitudinal direction, not much force is required to peel the protective film up to this position. At the position where the width of the seal portion switches from narrow to wide, the peeling strength of the wide seal portion increases, so a large resistance force is applied to the operation of pulling the protective film, thereby enabling the user to sense how far the protective film can be peeled off.

[0017] In the package having the above configuration, it is preferable to have a configuration in which a seal portion substantially V-shaped in plan view with a central portion protruding toward the second storage recess is disposed between the first storage recess and the second storage recess of the container body, and the contour of the end of the first storage recess adjacent to this seal portion is bordered in a substantially V-shape in plan view.

[0018] According to this, if the seal portion of the above shape is arranged between the first storage recess and the second storage recess and the protective film is attached, when the chemical solution is impregnated into the liquid-absorbing member of the applicator by pressing the recess filled with the chemical solution with a finger, the flow pressure of the chemical solution is applied to the portion sealed in the above shape of the protective film, and the first recess and the second recess communicate straight along the line passing through the centers of both recesses, and the chemical solution can be smoothly discharged into the first recess. Further, since the contour of the end of the first storage recess is bordered in the above shape, pseudo-adhesion is less likely to occur when the protective film is adhered by heat sealing, and a wide flow path for the chemical solution when the first and second storage recesses communicate is ensured, and the chemical solution can be surely, smoothly and waste-free discharged toward the liquid-absorbing member of the applicator and impregnated.

[0019] In the package with the above configuration, the end portion on the side opposite to the side where the second storage recess of the container body is provided is a non-sealed surface where the protective film is not attached. It is preferable to have a configuration in which a V-shaped convex rib is formed at the center within this non-sealed surface, and a group of convex ribs with a plurality of inclined convex ribs arranged on both sides of this convex rib are formed. The operation of peeling off the protective film from the container body is performed by pinching the end portion of the protective film overlapping the non-sealed surface. However, since it is a non-sealed portion not adhered to the container body, it is likely to curl. By providing a group of convex ribs consisting of a V-shaped convex rib and inclined convex ribs within the non-sealed surface at the end portion of the container body where the end portion of the protective film overlaps as described above, the protective film overlapping this portion floats and a gap is formed. Therefore, the end portion of the protective film can be easily pinched and the operation of peeling off the protective film can be easily performed, making it easier to open the package. Also, since each convex rib of the convex rib group is not in the same direction but is arranged with different directions, the non-sealed portion is less likely to curl and can maintain a flat state, making it easier to pinch.

Advantages of the Invention

[0020] In the package of the present invention, after impregnating the liquid-absorbing member of the applicator with the chemical solution, when taking this out from the package, a small amount of the chemical solution wiped off from the liquid-absorbing member can be retained, and it is possible to apply a sufficient amount of the chemical solution absorbed by the liquid-absorbing member to the affected area. Also, when taking out the applicator from the package, it is difficult for the chemical solution to adhere to the fingertips of the user, eliminating the trouble of wiping or washing off the chemical solution adhering to the fingertips, and there is no risk of the chemical solution soaking into the user's clothes, making it possible to improve the convenience of use when applying the chemical solution to the affected area.

Brief Description of the Drawings

[0021]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Embodiments for Carrying Out the Invention

[0022] Preferred embodiments of the present invention will be described based on the drawings. Note that the technical idea of the present invention is not limited to the embodiments described below.

[0023] FIG. 1 shows a package according to an embodiment of the present invention. This package 1 includes an applicator 2 for applying a liquid medicine, a first storage recess 31 with an open upper surface for storing the applicator 2, and a second storage recess 32 for storing the liquid medicine 4. It is composed of a container body 3 made of a synthetic resin sheet having a flange portion 33 around the upper part of both storage recesses 31 and 32. A protective film 5 made of a synthetic resin film is attached to the upper surface of the container body 3 in which the applicator 2 and the liquid medicine 4 are respectively placed in both storage recesses 31 and 32 by heat sealing to seal the inside of both storage recesses 31 and 32.

[0024] The applicator 2 is a rod-shaped body formed of a plastic material, such as a thermoplastic resin like polypropylene, polyethylene, or polystyrene, with a thickness and length that allows it to be picked up with one hand and used for applying the chemical solution. As shown in FIG. 2, a flat portion 21a is provided at one end of a shaft portion 21 having a rectangular cross-section. A liquid-absorbing member 22 for absorbing the chemical solution is integrally fixed to the lower surface of this flat portion 21a. On the other end of the shaft portion 21, overhang portions 21b that protrude left and right from both the left and right side surfaces of the shaft portion 21 parallel to the flat portion 21a are provided in a configuration.

[0025] The flat portion 21a is a thin portion that protrudes outward in a substantially semi-circular shape in plan view at one end of the shaft portion 21, and the liquid-absorbing member 22 is integrally fixed to its flat lower surface. The overhang portion 21b protrudes fan-shaped in the left and right lateral directions of the shaft portion 21 in plan view at the end opposite to the side where the flat portion 21a is provided, and is formed with a triangular through-hole in the center. Also, the liquid-absorbing member 22 is formed in a square shape in plan view using a material such as cotton or sponge that is excellent in absorbing the chemical solution, can hold the absorbed chemical solution, and can release the held chemical solution by the pressing force applied to the surface, and is integrally fixed to the lower surface of the flat portion 21a.

[0026] On the upper and lower surfaces of the shaft portion 21, a large number of uneven transverse ribs 21c are continuously formed without interruption over a range extending from the end where the flat portion 21a is provided to beyond the axial middle portion of the shaft portion 21. When the chemical solution 4 is released into the first storage recess 31 and impregnates the liquid-absorbing member 22, these numerous uneven transverse ribs 21c formed on the upper and lower surfaces of the shaft portion 21 function to prevent the chemical solution 4 from moving along the surface of the shaft portion 21 toward the overhang portion 21b side by capillary action when the chemical solution 4 adheres between the inner surface of the protective film 5 and the upper surface of the shaft portion 21 or the bottom surface of the first storage recess 31 and the lower surface of the shaft portion 21 and the respective members are in close contact. This prevents the chemical solution 4 from adhering to the fingertips of the user when taking out the applicator 2 from the package 1. In addition, a plurality of intersecting uneven ribs 21d are formed on the portion on the overhang portion 21b side so as not to slip when gripped with the fingers.

[0027] As shown in FIGS. 3 to 6, the container body 3 is formed with a first storage recess 31 for storing the applicator 2, in which the sheet surface is recessed downward within its upper surface, and a second storage recess 32 filled with the chemical solution 4, provided at adjacent positions, and a flange portion 33 projecting outward is provided around both storage recesses 31 and 32. The opening surface of the first storage recess 31 is formed in a substantially rectangular shape with an elongated shape and has a depth that allows the entire applicator 2 to be immersed. The opening surface of the second storage recess 32 is formed in a substantially elliptical shape and has a depth that can store a predetermined amount of the chemical solution 4.

[0028] As shown in FIGS. 3 and 6, at the bottom of the first storage recess 31, a recess 34 is provided that is recessed into the first storage recess 31 across both longitudinal sides of the first storage recess 31. This recess 34 is a constricted portion of the bottom of the first storage recess 31, and the first storage recess 31 can be easily bent at this portion. When taking out the applicator 2 impregnated with the chemical solution 4 from the package 1, if the end of the container body 3 is bent backward with the recess 32 as a boundary in a state where the protective film 5 is partially peeled off from the container body 3 and the container body 3 is folded in half and supported by a finger, the top of the container body 3 folded in half opens widely, and the applicator 2 can be smoothly pulled up and taken out without scraping off the chemical solution 4 from the liquid absorption member 22 impregnated with the chemical solution 4 and swollen.

[0029] Also, as will be described later, the protective film 5 is heat-sealed along a strip-shaped seal portion 6 laid out so as to surround the peripheries of the first storage recess and the second storage recess on the flange portion 33 of the container body 3, and the inside thereof is sealed. However, the end portion on the side opposite to the side where the second storage recess 32 of the container body 3 is provided is a non-sealed surface 33a to which the protective film 5 is not attached. In this non-sealed surface 33a, a rib group 35 is provided, in which a V-shaped convex rib is arranged at the center and a plurality of inclined convex ribs are arranged on both sides of this convex rib. This rib group 35 functions so that the end portion of the protective film 5 overlapping this portion is less likely to curl. As a result, the end portion of the protective film 5 maintains a flat state, and when peeling the protective film 5 from the container body 3, it is easy to pinch the end portion and perform the peeling operation.

[0030] Furthermore, the end portion 31a of the first storage recess 31 on the side of the second storage recess 31 is outlined in a substantially V shape in plan view. This makes it less likely to generate pseudo-adhesion when adhering the protective film 5 by heat-sealing, and also ensures a wide flow path for the chemical solution 4 when the first and second storage recesses 31 and 32 communicate with each other during the operation of impregnating the liquid-absorbing member 22 of the applicator 2 with the chemical solution 4.

[0031] The package 1 is formed by performing the shaping of the package and the packaging of the contents using a deep drawing packaging machine. A flat roll-shaped bottom material that can be thermoformed is fed into the deep drawing packaging machine, heated and softened, and pressure-air formed with a mold to form a container body 3 having the first and second storage recesses 31 and 32 on the upper surface. After storing the applicator 2 and filling the chemical solution 4 in both storage recesses 31 and 32 respectively, the protective film 5, which is the top material, is overlaid on the upper surface of the container body 3, and heat-sealed along a strip-shaped seal portion 6 laid out on the flange portion 33 of the container body 3, which is shown by hatching in FIGS. 4 and 5, to seal the interiors of both recesses 31 and 32.

[0032] The seal part 6 laid out on the flange part 33 of the container body 3 is composed of a primary seal part 61 surrounding the peripheries of the first storage recess 31 and the second storage recess 32 respectively, and a secondary seal part 62 surrounding the periphery of the second storage recess 32 in a U shape.

[0033] As shown in FIG. 4, in the seal part 6 surrounding the first storage recess 31, first width switching parts 61a, 61a whose width switches from narrow to wide are arranged at substantially the middle part in the longitudinal direction of the first storage recess 31. With the first width switching parts 61a, 61a as a boundary, the seal part 6 on the non-seal surface 33a side is narrow, and the seal part 6 on the second storage recess 32 side is wide. The operation of peeling off the protective film 5 from the container body 3 is performed from the non-seal surface 33a provided at the end of the container body 3. Since the part from the non-seal surface 33a side to substantially the middle part in the longitudinal direction of the first storage recess 31 is a narrow seal part 6, the operation of peeling off the protective film 5 can be performed with little force until reaching the first switching parts 61a, 61a where the seal part 6 becomes wide. Since the peel strength of the seal part 6 increases at the position where the width of the seal part 6 switches to wide, the user can thereby be made to sense how far the protective film 5 can be peeled off. Also, the seal part 6 surrounding the end part on the non-seal surface 33a side of the first storage recess 31 is in a mountain shape (∧ shape), which serves as a starting point for opening when peeling off the protective film 5, enabling a smooth opening operation.

[0034] As shown in FIG. 5, at a position closer to the second storage recess 32 side than substantially the middle part in the longitudinal direction of the first storage recess 31, second width switching parts 61b, 61b where the width of the seal part 6 switches from wide to narrow are arranged. With the second width switching parts 61b, 61b as a boundary, the end part 31a side of the first storage recess 31 is a narrow seal part 6. The portion where this seal part 6 is narrow is the portion facing the liquid absorption member 22 of the applicator 2 stored in the first storage recess 31. By narrowing the width of the seal part 6 in this portion and arranging the second width switching parts 61b, 61b where the width of the seal part 6 switches, when the chemical solution 4 is discharged into the first storage recess 31, it is possible to reduce the entry of the chemical solution 4 into the portion where the edges of the first storage recess 31 and the protective film 5 are in close contact, and the upward circulation of the chemical solution 4 along both edges due to capillary action.

[0035] Also, as shown in the figure, between the first storage recess 31 and the second storage recess 32, a seal part 61c that is substantially V-shaped in plan view with the central part protruding toward the second storage recess 32 side is arranged. By arranging the substantially V-shaped seal part 61c in the sheet surface between the first and second storage recesses 31, 32, if the second storage recess 32 is pressed with a finger to impregnate the liquid absorption member 22 of the applicator 2 with the chemical solution 4, the flow pressure of the chemical solution is applied to the portion sealed by the seal part 61c of the protective film 5, and both recesses 31, 32 communicate straight along the line passing through the centers of each other. The chemical solution 4 can be smoothly discharged into the first recess 32. Furthermore, combined with the fact that the contour of the end portion 31a of the first storage recess 31 is bordered in a substantially V-shape similar to the seal part 61c, the chemical solution 4 passes through the widely ensured flow path and is surely and smoothly discharged toward the liquid absorption member 22 of the applicator 2, enabling the liquid absorption member 22 to be impregnated with the chemical solution 4 without waste. The substantially V-shaped seal part 61c and the seal parts 6 on both sides are provided wider than the V-shaped part to suppress the seal retraction at both ends of the seal part 61c.

[0036] In addition, the seal portion 6 of the portion between the end of the container body 3 and the second storage recess 32 is provided wide to prevent leakage of the chemical solution 4 filled in the second storage recess 32. Further, when the second storage recess 32 is pressed with a finger to discharge the chemical solution 4 into the first storage recess 31, to suppress the chemical solution 4 from leaking from the second storage recess 32 toward the side of the container body 3, a U-shaped secondary seal portion 62 surrounding the periphery of the second storage recess 32 is heat-sealed from above the primary seal portion 61.

[0037] The package 1 of this embodiment configured as described above can impregnate the liquid-absorbing member 22 of the applicator 2 with the chemical solution 4 in the following manner, and then take it out and perform the treatment of applying the chemical solution 4 to the affected part of the user.

[0038] First, as shown in FIG. 7(A), with the side where the protective film 5 is attached facing downward, while supporting the package 1 with one hand, as shown in FIG. 7(B), pinch and press the second storage recess 32 with the other hand.

[0039] By pressing the second storage recess 32 with a finger, the flow pressure of the chemical solution 4 is applied to the portion sealed by the substantially V-shaped seal portion 61c of the protective film 5, peeling the seal portion 61c to connect the first recess 31 and the second recess 32, and the chemical solution 4 is discharged into the first recess 31, and the liquid-absorbing member 22 of the applicator 2 is impregnated with the chemical solution 4.

[0040] At this time, part of the chemical solution 4 discharged from the second storage recess 32 adheres to the shaft portion 21 of the applicator 2 or enters and circulates between the edge portions of the container body 3 and the protective film 5. However, since the treatment for preventing the movement of the chemical solution 4 due to capillary action is performed as described above, it is difficult for the chemical solution 4 to adhere to the fingertips of the user during the process of peeling off the protective film 5 or taking out the applicator 2.

[0041] If the liquid-absorbing member 22 of the applicator 2 is impregnated with the chemical solution 4, support the package 1 vertically with the second recess 32 facing downward. In this state, pinch the end of the protective film 5 that overlaps the unsealed surface 33a located at the upper part of the container body 3 with one hand, and pinch the unsealed surface 33a with the other hand to pull the end of the protective film 5 downward and peel it off from the container body 3. The peeling of the protective film 5 is carried out until a position where a feeling of increased peeling resistance is obtained.

[0042] As the protective film 5 is peeled off from the container body 3, the side that was pinching the unsealed surface 33a of the container body 3 bends backward with the recess 34 formed at the bottom of the container body 3 as a boundary. If this is folded 180° as it is and the container body 3 is folded in half and supported with a finger, as shown in FIG. 8, the container body 3 curves into a dish-shaped cross-section and the top of the container body 3 folded in half opens widely.

[0043] Then, in this state, as shown in FIG. 9, pinch the end of the applicator 2 with one hand, lift it upward as shown in FIG. 10 and take it out from the container body 3. Then, the liquid-absorbing member 22 swollen by the impregnation of the chemical solution 4 is smoothly pulled up from the widely opened unsealing opening, and the amount of the chemical solution 4 squeezed and dropped in contact with the protective film 5 and the inner surface of the container body 3 during the process of pulling up the liquid-absorbing member 22 is suppressed to a small amount, and it is possible to apply a sufficient amount of the chemical solution 4 to the affected area.

[0044] Note that the forms of the package, applicator, and container body shown in the drawings are examples, and the present invention is not limited to this form and can be configured in other appropriate forms. In the embodiment, the applicator 2 is formed using a thermoplastic resin, but it may be formed using a thermosetting resin, or may be formed using other materials such as paper materials, wood materials, or recycled materials instead of plastic materials. The shaft portion of the applicator is formed with a rectangular cross-section, but it can be provided with other polygonal shapes such as triangular shapes, or appropriate cross-sectional shapes such as circular shapes and elliptical shapes. Further, although a sponge having a square shape in plan view is used for the liquid-absorbing member of the applicator, other materials capable of absorbing the chemical solution such as non-woven fabrics and cloths may be formed into an appropriate shape and used as the liquid-absorbing member.

Description of Signs

[0045] 1 Package (package for liquid medicine applicator), 2 Applicator, 21 Shaft portion, 21c Concavo-convex horizontal rib, 22 Liquid-absorbing member, 3 Container body, 31 First storage recess, 32 Second storage recess, 33 Flange portion, 34 Recess, 4 Liquid medicine, 5 Protective film, 6 Seal portion, 61 Primary seal portion, 62 Secondary seal portion

Claims

1. An applicator having a liquid-absorbing member attached to an end of a shaft portion for sucking up a chemical solution, and a container body having a first storage recess for storing the applicator and a second storage recess adjacent to the first storage recess and filled with the chemical solution, with a flange portion provided around the upper periphery of both storage recesses. In a chemical solution applicator package configured by attaching a protective film to the upper surface of the container body with the applicator and the chemical solution placed in the respective storage recesses to seal the inside of both storage recesses, The chemical solution applicator package is characterized in that a recess is provided at the bottom of the first storage recess of the container body, the recess being recessed into the storage recess across both longitudinal sides of the storage recess.

2. The applicator is characterized in that a flat portion protruding to the left and right of the shaft portion is provided at one end of the shaft portion, a liquid-absorbing member is attached to the lower surface of the flat portion, and a number of uneven transverse ribs are provided on the upper surface side and the lower surface side of the shaft portion, according to the chemical solution applicator package described in Claim 1.

3. The uneven transverse ribs are provided over a range extending from the side of the end of the shaft portion where the flat portion is provided to beyond the axial middle portion of the shaft portion, according to the chemical solution applicator package described in Claim 2.

4. The applicator is characterized in that a flat portion protruding to the left and right of the shaft portion is provided at one end of the shaft portion, a liquid-absorbing member is attached to the lower surface of the flat portion, and a fan-shaped protruding portion is provided at the other end of the shaft portion, according to the chemical solution applicator package described in any one of Claims 1 to 3.

5. The protective film is attached to the container body along a strip-shaped seal portion laid out so as to surround the first storage recess and the second storage recess on the flange portion of the container body, The strip-shaped seal portion surrounding the first storage recess has two width switching portions at a substantially middle portion in the longitudinal direction of the first storage recess, where the width switches from narrow to wide and from wide to narrow, according to the chemical solution applicator package described in any one of Claims 1 to 3.

6. A seal portion substantially V-shaped in plan view with the central portion protruding toward the second storage recess side is arranged between the first storage recess and the second storage recess of the container body, and the contour of the end of the first storage recess adjacent to this seal portion is bordered substantially V-shaped in plan view, according to the chemical solution applicator package described in any one of Claims 1 to 3.

7. The end portion on the side opposite to the side where the second storage recess of the container body is provided is a non-sealed surface to which a protective film is not attached. In this non-sealed surface, a V-shaped convex rib is formed at the center, and a group of convex ribs in which a plurality of inclined convex ribs are arranged on both sides of this convex rib is formed. The chemical solution applicator package according to any one of claims 1 to 3, characterized by having such a configuration.

Citation Information

Patent Citations

  • Package for application stick

    JP2003292041A

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    JP3201522U