Cooler bag, sheet material, and set of cooler bag and sheet material

Abstract

The present invention provides a cooler bag that allows for easy removal of sheet-like materials from inside the cooler bag, while the portion of the sheet-like material that is not removed from the cooler bag is less exposed to outside temperatures, a set of a cooler bag and sheet-like material, and a set of a cooler bag and sheet-like material. [Solution] The cooler bag 10 comprises a bag body 20 having an opening 41 and configured to accommodate a sheet-like material 71a, and a bag lid 30 configured to be positioned to close the opening 41, wherein the bag lid 30 has a slit 34 and is provided with a wire fastener 35 configured to open and close the slit 34. The sheet-like material 71a to be contained in the cooler bag 10 is a sheet-like material 71a that has been folded at least once to form layers or wound up to form a roll. The cooler bag and sheet-like material set 99 comprises the cooler bag 10 and the sheet-like material 71a contained in the bag body 20.

Description

Technical Field

[0001] The present disclosure relates to a cold storage bag, a sheet-like material, and a set of a cold storage bag and a sheet-like material.

Background Art

[0002] In recent years, the number of extremely hot days in summer has increased, and the risk of heat stroke has also increased. As an easy prevention and first aid for heat stroke, it is effective to apply a sheet-like material such as a cooled towel or wet tissue to the neck muscles of a person whose body temperature is likely to rise to lower the body temperature. Among them, the wet tissue type sheet-like material is often used because it does not require water addition and is easy to carry.

Summary of the Invention

Problems to be Solved by the Invention

[0003] However, a sheet-like material at normal temperature has a low effect of lowering the body temperature. In particular, for a wet sheet containing menthol (cooling agent) at normal temperature, even if it feels cold due to menthol, it has a low effect of lowering the body temperature, so it is considered that there is a risk of increasing the risk of heat stroke. It is also conceivable to put a wet tissue in a cold storage bag and cool it, but it is troublesome to take out one by one from the cold storage bag.

[0004] Therefore, an object of the present disclosure is to provide a cold storage bag, a sheet-like material, and a set of a cold storage bag and a sheet-like material, in which the sheet-like material can be easily taken out from the cold storage bag, and the portion of the sheet-like material that has not been taken out of the cold storage bag is less exposed to the outside air temperature.

Means for Solving the Problems

[0005] To solve the above problems, a cooler bag according to one embodiment comprises a bag body having an opening and configured to accommodate a sheet-like material, and a bag lid configured to be positioned to close the opening, wherein the bag lid has a slit and is provided with a wire fastener configured to open and close the slit.

[0006] In such a cooler bag, since the slit is provided in the lid of the bag, when the sheet material is contained in the bag body, the lid remains positioned to close the opening of the bag body, and the sheet material can be pulled out of the bag body one by one through the slit. When pulling out the sheet material, the user does not need to change the relative position of the bag body and the lid, making it easy to remove the sheet material one by one from the bag body with minimal effort. Furthermore, since the linear fastener is provided in the slit, once the desired amount of sheet material has been pulled out from the cooler bag body, the user can easily separate the portion of the sheet material that has already been pulled out from the portion that remains inside the bag body using the linear fastener. As a result, the portion of the sheet material that remains inside the bag body is less exposed to the outside temperature. These effects are similarly achieved in the sheet-like material according to one embodiment described below, as well as in the set of a cooler bag and sheet-like material according to one embodiment.

[0007] The sheet-like material according to one embodiment is a sheet-like material that is contained in the cooler bag and may be folded at least once to form layers or wound up to form a roll. Furthermore, the set of the cooler bag and the sheet-like material according to one embodiment may comprise the cooler bag and the sheet-like material contained within the bag body. [Effects of the Invention]

[0008] As described above, this disclosure provides a cooler bag that allows for easy removal of sheet-like materials from inside the cooler bag, and in which the portion of the sheet-like material not removed from the cooler bag is less exposed to the outside temperature, a sheet-like material, and a set of the cooler bag and the sheet-like material. [Brief explanation of the drawing]

[0009] [Figure 1] Figure 1 is a perspective view showing a cooler bag according to one embodiment, with the opening of the bag body not covered by the bag lid. [Figure 2] Figure 2 is a perspective view showing a cooler bag according to one embodiment, with the opening of the bag body closed by the bag lid. [Figure 3] Figure 3 is a perspective view showing a sheet-like product including at least one sheet-like material according to one embodiment, and a cooler bag according to one embodiment. [Figure 4] Figure 4 is a perspective view showing a set of a cooler bag and a sheet-like material according to one embodiment. [Figure 5] Figure 5 is a perspective view showing a sheet-like product including at least one sheet-like material according to another embodiment. [Modes for carrying out the invention]

[0010] The embodiments will be described below with reference to the drawings. Similar components will be denoted by the same reference numerals throughout the drawings. The dimensions and positional relationships of each component depicted in the drawings, such as size and aspect ratio, are for illustrative purposes only. The embodiments are not limited to those shown in the drawings.

[0011] A cooler bag 10 according to one embodiment illustrated in Figures 1 and 2 comprises a bag body 20 having an opening 41 and a bag lid 30 configured to be positioned to close the opening 41. Hereinafter, in this specification, when the cooler bag 10 is placed on a flat horizontal surface, one direction on the horizontal surface is defined as the front-rear direction Dx, the direction perpendicular to the front-rear direction Dx on the horizontal surface is defined as the width direction Dy, and the direction along the vertical direction perpendicular to each of the front-rear direction Dx and the width direction Dy is defined as the up-down direction Dz.

[0012] The bag body 20 has a rectangular bag bottom 21 and cylindrical bag sides 22 that are erected from the periphery of the bag bottom 21 upward in the vertical direction Dz. The combination of the bag bottom 21 and the bag sides 22 gives the bag body 20 a bag-like shape with an opening 41 formed upward in the vertical direction Dz. Therefore, the cooler bag 10 is configured to allow the user to accommodate at least one sheet-like object 71a into the bag body 20 through the opening 41, as illustrated by the hollow arrow in Figure 3. In other words, the combination of the bag body 20 (i.e., the bag bottom 21 and the bag sides 22) and the bag lid 30 defines a hexahedral storage space 40 in which at least one sheet-like object 71a can be accommodated inside the bag body 20. The dimensions, such as size and aspect ratio, of the hexahedral storage space 40 depend on the dimensions, such as size and aspect ratio, of the bag bottom 21, bag sides 22, and bag lid 30. The hexahedral storage space 40 may be defined as a cubic space, for example, or as a rectangular parallelepiped space.

[0013] Multiple pockets are provided in the part of the bag side 22 that surrounds the four sides of the hexahedral storage space 40. Preferably, at least one of these pockets (preferably all of the pockets) is configured to accommodate a cooling pack 90. ​​In the example shown in Figure 1, the inner surface 25 located inside the bag body 20 in the bag side 22 is the part that surrounds the four sides of the storage space 40, and four inner pockets are provided on this inner surface 25. Each inner pocket 23 is configured to accommodate a cooling pack 90, as illustrated in Figure 3. Therefore, when at least one sheet-like object 71a is stored in the storage space 40, each of the four sides of the sheet-like object 71a is surrounded by a cooling pack 90, making it difficult for heat from the outside air outside the cooler bag 10 to be transferred to the sheet-like object 71a, and making it easier to efficiently cool the sheet-like object 71a from all sides with the cold air from each cooling pack 90.

[0014] The cooling pack 90 is, for example, a pack containing a cooling agent that includes a gel that releases cold air when cooled, and may be detachably configured within each inner pocket 23. Each cooling pack 90 may be frozen, for example in a freezer, and then removed from the freezer and inserted into the inner pocket 23 for use. The composition of the cooling agent is not particularly limited as long as it does not contradict the purpose of this disclosure, and examples include a composition containing gel, sodium polyacrylate, ammonium sulfate, sodium sulfate, glycerin, water, and an antifungal agent. Not limited to this example, known cooling packs 90 and cooling agents may be used.

[0015] From the viewpoint of making it easier for the user to carry the cooler bag 10, the cooler bag 10 may be provided with a handle portion 27 on a surface located on the outside of the bag body portion 20 (for example, the outer surface 24 of the side portion 22 of the bag) that is configured to be grasped or carried over the shoulder by the user. An outer pocket 28 may be provided on the outer surface 24 of the side portion 22 of the bag. Figures 1 to 4 show an example in which an outer pocket 28 is provided on the part of the outer surface 24 of the cooler bag 10 located on the front side in the front-to-back direction Dx, and is made of a transparent resin film having a shape and dimensions suitable for storing a name tag or business card. The arrangement, shape, dimensions, and material of the outer pocket 28 can be appropriately designed to suit any item intended to be stored in the outer pocket 28, and this is not limited to this example. The cooler bag 10 may have a hinge (not shown) on the rear side (rear side in the front-to-back direction Dx) which is located at the back of the paper in Figures 1 to 4 and not depicted, configured so that the bag lid 30 can close (Figure 2) or open (Figure 1) the opening 41 of the bag body 20 as needed. This hinge may be a flexible member that connects the outer surface 24 of the bag side 22 and the bag lid 30 on the rear side of the cooler bag 10.

[0016] The bag lid portion 30 may have a rectangular lid surface portion 31. In the examples shown in Figures 2 and 4, a slit 34 is formed in the central portion 32 of the lid surface portion 31, penetrating the lid surface portion 31 in the vertical direction Dz, and along the width direction Dy. In this disclosure, the slit 34 is not limited to being formed in the central portion 32 of the lid surface portion 31, but may also be formed in the peripheral portion 33 of the lid surface portion 31, for example, although not shown. When the bag lid portion 30 is positioned to close the opening 41 of the bag body portion 20, and at least one sheet-like object 71a is contained in the storage space 40 within the bag body portion 20, the slit 34 functions as a pull-out hole through which the sheet-like object 71a is pulled out of the bag body portion 20, as illustrated in Figure 4. Since no action is required to change the relative positions of the bag body 20 and the bag lid 30 during this drawer operation, the insulated bag 10 is configured to allow the user to easily remove the sheet-like material 71a from inside the bag body 20 with relatively few movements.

[0017] The thickness Dz in the vertical direction of the bag lid 30 (lid surface 31) when it is positioned to close the opening 41 of the bag body 20 should be such that the bag lid 30 has sufficient heat insulation to keep the inside of the bag body 20 cool. This depends on the heat insulation properties of the material that makes up the bag lid 30 (lid surface 31), but for example, it may be 3 mm to 10 mm or 4 mm to 7 mm. The length Wt of the slit 34 formed along the width direction Dy should be such that it is easy to pull out the sheet-like material 71a through the slit 34. This depends on the flexibility of the material that makes up the bag lid 30 (lid surface 31), but for example, it may be 100 mm to 200 mm or 150 mm to 180 mm. From these perspectives, the ratio of the length Wt of the slit 34 to the thickness Dz in the vertical direction of the bag lid 30 (lid surface 31) (length Wt of the slit 34 along the width direction Dy (mm) / thickness Dz in the vertical direction of the bag lid 30 (lid surface 31) (mm)) may be, for example, 10 to 65, or 20 to 40.

[0018] The lid surface 31 of the bag lid 30 is provided with a first wire fastener 35 configured to open and close the slit 34 along the direction in which the slit 34 extends (width direction Dy). The first wire fastener 35 comprises a pair of tape-shaped base materials supported on the lid surface 31, a pair of interlocking elements 37 attached to the side edges of each of these tape-shaped base materials so as to face each other, and a slider 36 configured to function as an opening and closing component that interlocks or separates the pair of interlocking elements 37 by sliding movement. Known wire fasteners can be used as the first wire fastener 35, for example, a metal fastener when each of the pair of interlocking elements 37 is made of metal, a coil fastener when each of the pair of interlocking elements 37 is made of a coil-shaped monofilament of synthetic resin, or a plastic fastener when each of the pair of interlocking elements 37 is made of injection-molded synthetic resin.

[0019] The first wire fastener 35 closes the slit 34 when the user has not pulled the sheet-like material 71a out of the bag body 20 but has kept it inside the bag body 20, thereby making it difficult for the cold air inside the bag body 20 to dissipate into the outside air. When the user attempts to pull the sheet-like material 71a out of the bag body 20, they slide the slider 36 of the first wire fastener 35 to open the slit 34. In addition, the pair of engaging elements 37 in the first wire fastener 35 can function as cutters to easily separate the pulled-out portion 72 of the sheet-like material 71a from the bag body 20 through the slit 34 when the user is in the process of pulling the sheet-like material 71a out of the bag body 20. This makes it easier to separate the pulled-out portion 72 from the sheet-like material 71a from the bag body 20 from the contained portion 73 that remains inside the bag body 20. As a result, the contained portion 73 of the sheet-like material 71a is less exposed to the outside temperature. From the standpoint of being robust, inexpensive, and easily functioning as a cutter for sheet-like material 71a, it is preferable to use a plastic fastener as the first wire fastener 35.

[0020] As described below, at least one sheet-like object 71a may contain an aqueous solution. From the perspective of minimizing the transpiration of water from the sheet-like object 71a to the outside air through the slit 34, as the first wire fastener 35, it is preferable to use a wire fastener having water repellency or water stopping property, and it is more preferable to use a wire fastener having water stopping property. The water-repellent wire fastener is a wire fastener using, as a pair of tape-like base materials, those having undergone a water-repellent treatment in which fine irregularities are formed on the surfaces of the respective tape-like base materials. As the water-repellent wire fastener, for example, a commercially available water-repellent fastener with a trademark such as WATER-R manufactured by YKK Corporation may be used. The water-stopping wire fastener is a wire fastener in which a resin film is adhered (for example, a polyurethane resin film is fused by a treatment such as lamination) to each tape-like base material so as to cover the pair of engaging elements 37 and the pair of tape-like base materials, and the resin films adhere to each other in conjunction with the opening and closing of the pair of engaging elements 37, thereby suppressing the transpiration of water from inside the bag main body 20 to the outside air. As the water-stopping wire fastener, a commercially available water-stopping fastener (waterproof specification fastener) can be used, and for example, a wire fastener with the trademark Aquaguard (registered trademark) manufactured by YKK Corporation may be used.

[0021] The cooler bag 10 may be equipped with fastening means to secure the bag lid 30 so that its position is not unintentionally altered by the user when the bag lid 30 is positioned to close the opening 41 of the bag body 20. As a fastening means, for example, the cooler bag 10 shown in Figures 1 to 4 is equipped with a second linear fastener 50. The second linear fastener 50 has a body-side engaging element 51 arranged in a line along the upper edge 26 of the bag side portion 22 of the bag body 20 (Figure 1, the end portion located on the upper side of the bag side portion 22 in the vertical direction Dz), a lid-side engaging element 52 arranged in a line along the peripheral edge 33 of the rectangular lid surface portion 31 of the bag lid 30, and one or two sliders (not shown). When the user separates the main body-side engaging element 51 and the lid-side engaging element 52 using the slider, the opening 41 is opened, and at least one sheet-like object 71a can be placed inside the bag body 20, as illustrated in Figure 3. Furthermore, when the user engages the main body-side engaging element 51 and the lid-side engaging element 52 using the slider, the position of the bag lid 30 covering the opening 41 is fixed, making it difficult for cold air inside the bag body 20 to escape into the outside air. It is preferable to use a water-repellent or water-sealing wire fastener as the second wire fastener 50, and even more preferable to use a water-sealing wire fastener. The fastening means is not limited to the second wire fastener 50; although not shown, known fasteners such as strings, hooks, or buttons may be used.

[0022] As the material for each of the bag body portion 20 (bag bottom portion 21 and bag side portion 22) and the bag lid portion 30, it is not particularly limited as long as it does not conflict with the object of the present disclosure, and a heat-insulating material known as the material for a conventional cold storage bag can be used. This material may have flexibility that can be easily deformed manually, or may be formed of a relatively hard material that is not easily deformed manually. This material is preferably a material that allows the cold storage bag 10 to stand independently as illustrated in FIGS. 1 to 4. This material may, for example, have a two-layer structure having an exterior material and an interior material, or may have a three-layer structure further having a heat-insulating material interposed between the exterior material and the interior material. As the exterior material, for example, a fabric, a metal vapor deposition sheet, or a waterproof sheet may be used. Examples of the fabric include a woven fabric, a knitted fabric, a non-woven fabric, or a combination of two or more of these. Examples of the metal vapor deposition sheet include an aluminum vapor deposition sheet. Examples of the waterproof sheet include a resin sheet, or a sheet in which a woven fabric or a metal vapor deposition sheet is bonded to a resin sheet. As the interior material, for example, a waterproof sheet or the like may be used. As the heat-insulating material, for example, a flexible foamed resin sheet or a bulky fabric may be used. The same heat-insulating material may be used for the bag bottom portion 21, the bag side portion 22, and the bag lid portion 30, or different heat-insulating materials may be used. The bag bottom portion 21 and the bag side portion 22 may be joined by sewing, or may be joined by heat welding of materials including a resin sheet.

[0023] In one embodiment, at least one sheet-like material 71a is folded at least once to form layers or wound into a roll, and is housed inside the bag body 20 of the insulated bag 10. The number of folds may be one or multiple times. Furthermore, when at least one sheet-like material 71a is housed inside the bag body 20 of the insulated bag 10 (storage space 40 shown in Figures 1 and 3), it is intended to be pulled out of the bag body 20 through a slit 34 formed in the bag lid 30 (lid surface 31), as shown in Figure 4. The at least one sheet-like material 71a may be a single sheet-like material or multiple sheet-like materials. Each sheet-like material may be, for example, a paper or fiber fabric such as a woven, knitted, or nonwoven fabric. Examples of sheet-like materials include paper products or textile products such as wet wipes, tissue paper, paper towels, kitchen paper, body wipes, paper towels, cotton towels, cloth towels, or sheet-like masks. The cloth in each sheet-like material may, for example, contain cellulose fibers, nylon resin fibers, polyolefin resin fibers, or polyester resin fibers.

[0024] At least one sheet-like material 71a may be, for example, a dry cloth, but from the viewpoint of ease of use for the simple prevention and first aid of heatstroke, it is preferable that it be a wet type in which an aqueous solution is impregnated into the cloth (having the cloth and the aqueous solution impregnated into the cloth). The aqueous solution may appropriately contain components suitable for any use of the sheet-like material 71a. Such components are not particularly limited as long as they do not contradict the purpose of this disclosure, but examples include water, alcohols, oils, surfactants, gelling agents, disinfectants, antibacterial agents, sterilizing agents, fragrances, salts, pH adjusters, emollients, cooling agents, or vitamins. Examples of alcohols include water-soluble lower (5 or fewer carbon atoms) alcohols or water-soluble aromatic alcohols. As a water-soluble lower alcohol, one or more of the following may be used: methanol, ethanol, propanol, ethylene glycol, or glycerin. Ethanol is preferred because it easily cools the skin surface by evaporative cooling immediately after wiping the skin with the sheet-like material 71a. As a surfactant, anionic surfactants or nonionic surfactants are examples, and nonionic surfactants are preferred because they cause less irritation to the skin. As a disinfectant, antibacterial agent, or bactericide, it is preferable that it can exhibit disinfectant, antibacterial, or bactericidal activity in the presence of a nonionic surfactant. As a vitamin, ascorbic acid (vitamin C) is an example.

[0025] The cooling agents described above are agents that do not lower skin temperature but provide a sensation of coolness, and examples include menthol, peppermint oil, camphor, thymol, spiranthol, or methyl salicylate. The cooling agent may be contained in the aqueous solution impregnated into the fabric of the sheet-like material 71a, but from the viewpoint of not contributing to a decrease in body temperature, it is preferable that the pure content of the cooling agent in this aqueous solution be, for example, 1.0% by mass or less, and the aqueous solution may not contain any cooling agent at all. "Substantially contained" means not containing any at all, or containing less than the lower limit detectable by instrumental analysis. Furthermore, in this specification, "content" means the total content of two or more components if there are two or more components that are the subject of the content measurement in the aqueous solution.

[0026] From the viewpoint of achieving both a cooling sensation due to the vaporization of ethanol and low irritation to the skin, it is preferable that the ethanol content in the aqueous solution impregnated into the fabric of at least one sheet-like material 71a be 5% by mass or more and 20% by mass or less, and more preferably 10% by mass or more and 15% by mass or less. Furthermore, since water has a high specific heat, when the cooled aqueous solution in the cooled sheet-like material 71a contains a large amount of water, when the cooled sheet-like material 71a is used to wipe the skin, a large amount of heat can be absorbed from the skin surface into the aqueous solution contained in the sheet-like material 71a, making the sheet-like material 71a more useful for preventing heatstroke and providing first aid. From this viewpoint, it is preferable that the water content in the aqueous solution impregnated into the fabric of at least one sheet-like material 71a be 70% by mass or more, and more preferably 80% by mass or more. Furthermore, the water content in this aqueous solution is preferably 95% by mass or less, and more preferably 90% by mass or less, from the viewpoint of leaving room for some ethanol, cooling agents, and other components to be included in the aqueous solution. For these reasons, in the aqueous solution impregnated into at least one sheet-like material 71a, it is preferable that the ethanol content is 5% by mass or more and 20% by mass or less and the water content is 70% by mass or more and 95% by mass or less, and more preferably that the ethanol content is 10% by mass or more and 15% by mass or less and the water content is 80% by mass or more and 90% by mass or less. An example of the composition of this aqueous solution is shown in Table 1.

[0027] [Table 1]

[0028] Figures 3 and 4 illustrate a case where at least one sheet-like material 71a is a strip-shaped wet paper towel, and the longitudinal direction of the already pulled-out portion 72 of the sheet-like material 71a is oriented along the vertical direction Dz. When the sheet-like material 71a is strip-shaped in this way, a portion of the contained portion 73 of the sheet-like material 71a is pulled out near the slit 34, following the pulled-out portion 72 of the sheet-like material 71a, making it easy to continuously pull out the sheet-like material 71a from inside the bag body 20. Furthermore, when the sheet-like material 71a is strip-shaped, it is preferable that perforations 74 are formed along a direction intersecting the longitudinal direction at predetermined intervals in the longitudinal direction (along the vertical direction Dz in Figure 4). The intersecting direction here may be, for example, a direction that intersects the longitudinal direction at an angle of 60° to 120°, but preferably it is a direction perpendicular to the longitudinal direction (the direction along the vertical direction Dz in Figure 4) (the direction along the width direction Dy). When perforations 74 are formed in this way on a single strip-shaped sheet material 71a, as illustrated in Figure 4, when the sheet material 71a is pulled out from inside the bag body 20 (inside the storage space 40 shown in Figure 3) through the slit 34, the perforated portion 74 easily catches on the pair of engaging elements 37 of the first wire fastener 35 provided in the slit 34, making it easy to separate the pulled-out portion 72 from the stored portion 73 of the sheet material 71a. As a result, the user can quickly obtain multiple pieces of sheet material separated from a single strip-shaped sheet material 71a with relatively few actions.

[0029] From the viewpoint of facilitating market distribution and storage, at least one sheet-like material 71a is preferably in the form of a sheet-like product 70a in which the sheet-like material 71a is housed within a packaging material 80a, as illustrated in Figures 3 and 4. The user opens the sealed bag-shaped packaging material 80a at the upper end of the packaging material 80a in the vertical direction Dz, and after housing the sheet-like product 70a with an opening 81a formed in the packaging material 80a, as shown by the hollow arrow in Figure 3, inside the bag body 20 (storage space 40), the bag lid 30 is positioned to close the opening 41 of the bag body 20, and the sheet-like material 71a can be pulled out of the bag body 20 through the slit 34. The packaging material 80a is not particularly limited as long as it is of a material that can be housed inside the bag body 20 (storage space 40) and allows the sheet-like material 71a to be pulled out when needed, as long as it does not contradict the purpose of this disclosure, and known packaging materials can be used. From the viewpoint of avoiding the loss of the aforementioned water, ethanol, and other components when the sheet-like material 71a is not in use (during storage), it is preferable that the packaging material 80a is a packaging bag made of a non-permeable laminated sheet (for example, a laminated resin sheet including a metal vapor-deposited sheet). When at least one sheet-like material 71a is in the shape of a strip, the portion 73 of the sheet-like material 71a to be contained can be contained within the bag body 20 (for example, within the packaging material 80a contained within the bag body 20) in a state where it is folded multiple times to form layers or wound up to form a roll.

[0030] In the sheet-like material 71a when no external force is applied and it is unfolded, the length in the direction perpendicular to the longitudinal direction (the direction along the vertical direction Dz in Figure 4) (the direction along the width direction Dy), that is, the width Ws of the sheet-like material 71a, may be less than or equal to the length Wt of the slit 34 extending along the width direction Dy, but from the viewpoint of easily separating the portion to be pulled out 72 from the portion to be contained 73 of the sheet-like material 71a, it is preferable that the length Ws is longer than the length Wt of the slit 34. In other words, the ratio R of the lengths s / tThe ratio ((width Ws of the sheet-like material 71a) / (length Wt of the slit 34)) may be, for example, 1.0 or less, but it is preferable that it be greater than 1.0. When it is greater than 1.0, when the user tries to pull out the sheet-like material 71a by grasping and pulling the portion to be pulled out 72, the portion to be contained 73 gets somewhat caught in the slit 34 and is difficult to pull out, while the portion to be pulled out 72 is pulled in a way that stretches it, making it easier to separate the portion to be pulled out 72 from the portion to be contained 73 with relatively little force. From a similar viewpoint, the ratio R of the lengths s / t More preferably, it is 1.2 or more, and even more preferably 1.4 or more. From the viewpoint of preventing the sheet-like material 71a from getting caught too much in the slit 34, the ratio R of the length s / t For example, it may be 2.0 or less, or 1.8 or less. The ratio R of the lengths when unfolded. s / t If the dimension is greater than 1.0, the sheet-like material 71a may be contained within the packaging material 80a in a compact state, folded in half or in thirds in a direction perpendicular to the longitudinal direction, so that it can be easily removed through the slit 34.

[0031] A set 99 of a cooler bag and sheet material according to one embodiment, as illustrated in Figure 4, comprises a cooler bag 10 and at least one sheet material 71a (preferably a sheet material product 70a including the sheet material 71a) housed within the bag body 20 of the cooler bag 10. This set 99 may be distributed and sold on the market as is, or the cooler bag 10 and at least one sheet material 71a (preferably a sheet material product 70a including the sheet material 71a) may be distributed and sold separately. For example, at least one sheet material 71a (preferably a sheet material product 70a including the sheet material 71a) may be distributed and sold on the market as a refill when the user consumes the sheet material 71a contained in the set 99. Preferably, this set 99 further comprises at least one ice pack 90 housed within the bag body 20, as illustrated in Figure 3. Furthermore, from the viewpoint of making this set 99 easy to use as a set for preventing or providing first aid for heatstroke, it is preferable that it further comprises at least one cooling pack 90 housed in the bag body 20, as well as, for example, a sports drink, an ice pack, a neck cooler, or a fan. This set 99 may house one sheet-like product 70a in the bag body 20, or it may house two or more sheet-like products. From the viewpoint of efficiently cooling the sheet-like material 71a with at least one cooling pack 90 inside the bag body 20 by making the sheet-like product 70a a size that fits easily inside the bag body 20, in this set 99, the ratio of the volume of at least one sheet-like product 70a to the volume of the storage space 40 (volume of at least one sheet-like product 70a / volume of storage space 40) may be, for example, 0.6 or more and less than 1.0, and preferably 0.7 or more and 0.9 or less.

[0032] The sheet-like product 70b illustrated in Figure 5 comprises at least one sheet-like material 71b and packaging material 80b. In the sheet-like product 70b, the sheet-like material 71b is wound to form a roll 75 and is housed within the packaging material 80b such that the direction of the roll axis Ra is aligned with the vertical direction Dz. The packaging material 80b houses the sheet-like material 71b such that the opening 81b of the packaging material 80b is formed above the roll axis Ra direction relative to the roll 75. In other words, the opening 81b can also be said to function as an opening for removing the sheet-like material 71b from within the packaging material 80b. The user can use the sheet-like product 70b by pulling out the sheet-like material 71b through the opening 81b and slit 34 while the sheet-like product 70b is housed within the bag body 20 (although not shown), similar to the use of the sheet-like product 70a illustrated in Figures 3 and 4. During this pulling process, the roll 75 within the bag body 20 is in an upright cylindrical or tubular shape on the bag bottom 21 with the direction of the roll axis Ra aligned with the vertical direction Dz. Therefore, even when some of the sheet material 71b is consumed and the remaining amount decreases, the distance from the sheet material 71b to the slit 34 is easily maintained at a constant level. For this reason, it is easy for the user to pull out the sheet material 71b through the opening 81b and the slit 34, regardless of the remaining amount of sheet material 71b.

[0033] In the sheet-like product 70b illustrated in Figure 5, at least one sheet-like material 71b may consist of multiple sheets, but from the viewpoint of easy removal, it is preferable that it be a single strip-shaped sheet-like material. Furthermore, it is preferable that at least one sheet-like material 71b has perforations 74 formed at predetermined intervals along the longitudinal direction of the sheet-like material 71b in a direction intersecting this longitudinal direction (for example, a direction intersecting at 60° to 120°, preferably a perpendicular direction). It is preferable that at least one sheet-like material 71b has a form comprising a fabric and an aqueous solution impregnated into this fabric. The roll 75 formed from the sheet-like material 71b has a first sheet end 77 arranged on the roll axis Ra side (center side of the roll 75) and a second sheet end 78 arranged on the roll circumferential surface 76 side. From the viewpoint of facilitating the removal of the sheet-like material 71b through the opening 81b and slit 34, it is preferable that the first sheet end 77 of the roll 75 housed within the packaging material 80b protrudes upward from the roll 75 in the direction of the roll axis Ra (along the vertical direction Dz). From the viewpoint of preventing the sheet-like material 71b from drying out, it is preferable that the opening 81b of the packaging material 80b is configured to be openable and closable. For this purpose, it is preferable that the packaging material 80b has a closure portion 82 configured to be able to close or open the opening 81b as needed. The closure portion 82 is not particularly limited as long as it does not contradict the purpose of this disclosure, and for example, adhesive tape may be used. In addition, the sheet-like product 70b and the set (not shown) comprising the insulated bag 10 and the sheet-like product 70b can take any configuration from among the several configurations described above for the sheet-like product 70a and the set 99 as needed.

[0034] This disclosure includes the following: (Section 1) A bag body having an opening and configured to accommodate a sheet-like material, The bag comprises a lid portion configured to be positioned to close the aforementioned opening, A cooler bag having a slit formed in the lid and a wire fastener configured to open and close the slit. (Section 2) The bag body has a rectangular bag bottom and bag sides that are erected from the periphery of the bag bottom, and the bag bottom, bag sides, and bag lid define a hexahedral storage space in which the sheet-like material can be stored inside the bag body. The cooler bag according to paragraph 1, wherein the side of the bag is provided with four pockets, each configured to accommodate a cooler pack, in the portion surrounding the storage space on all four sides. (Section 3) A sheet-like material to be contained in the cooler bag described in paragraph 1 or 2 above, which is folded at least once to form layers or wound up to form a roll. (Section 4) The sheet-like material is contained within the packaging material so that it forms a roll and the axial direction of the roll is aligned with the vertical direction. The packaging material is a sheet-like material as described in paragraph 3, wherein the opening of the packaging material is formed in the upper axial direction. (Section 5) The apparatus comprises a fabric and an aqueous solution impregnated into the fabric. A sheet-like material as described in paragraph 3 or 4, wherein the aqueous solution contains 10% by mass or more and 15% by mass or less of ethanol, and contains 80% by mass or more and 90% by mass or less of water. (Section 6) A sheet-like material in the shape of a strip, wherein perforations are formed along the longitudinal direction of the sheet-like material at predetermined intervals along a direction intersecting the longitudinal direction, as described in any one of the third to fifth paragraphs. (Section 7) A set of a cooler bag and a sheet-like material, comprising a cooler bag as described in paragraph 1 or 2 above, and a sheet-like material as described in any one of paragraphs 3 to 6 above, contained within the main body of the bag.

[0035] This disclosure is not limited to the embodiments described above, and can be implemented in various forms with improvements, modifications, or variations based on the knowledge of those skilled in the art, without departing from the spirit of this disclosure. This disclosure can also be implemented in a form in which any specific item is replaced with another technology, to the extent that the same function or effect is produced. For example, the bag bottom 21 and the lid 31 are not limited to a rectangular shape, but may be circular, elliptical, polygonal (triangular, hexagonal), etc., and in this case the storage space 40 may be cylindrical, elliptical, or polygonal prism (triangular, hexagonal), etc. [Explanation of Symbols]

[0036] 10…Insulated bag, 20...Bag body, 21...Bag bottom, 22...Bag sides, 23...Inner pocket, 24...Outer side, 25...Inner side, 26...Top edge, 27...Handle, 28...Outer pocket 30...Bag lid, 31...Lid surface, 32...Center, 33...Peripheral, 34...Slit, 35...First wire fastener, 36...Slider, 37...Pair of engaging elements 40...accommodation space, 41...opening, 50...Second wire fastener, 51...Main body side engaging element, 52...Lid side engaging element, 70a, 70b... Sheet-like product, 71a, 71b... Sheet-like material, 72... Pull-out portion, 73... Contained portion, 74... Perforation, 75... Roll, 76... Roll periphery, 77... First sheet end, 78... Second sheet end, 80a, 80b... Packaging material, 81a, 81b... Opening, 82... Closure portion, 90...Cooling pack, 99...Set Ra: Roll axis, Ws: Width of the sheet material, Wt: Slit length, Dx: Front-to-back direction, Dy: Width direction, Dz: Up-and-down direction

Claims

1. A bag body having an opening and configured to accommodate a sheet-like material, The bag comprises a lid portion configured to be positioned to close the aforementioned opening, A cooler bag having a slit formed in the lid and a wire fastener configured to open and close the slit.

2. The bag body has a rectangular bag bottom and bag sides that are erected from the periphery of the bag bottom, and the bag bottom, bag sides, and bag lid define a hexahedral storage space in which the sheet-like material can be stored inside the bag body. The cooler bag according to claim 1, wherein the side of the bag is provided with four pockets, each configured to accommodate a cooler pack, in the portion surrounding the storage space on all four sides.

3. A sheet-like material to be contained in the cooler bag described in claim 1, wherein the sheet-like material is folded at least once to form layers or wound up to form a roll.

4. The sheet-like material is contained within the packaging material so that it forms a roll and the axial direction of the roll is aligned with the vertical direction. The sheet-like material according to claim 3, wherein the packaging material is configured such that the opening of the packaging material is formed in the upper axial direction.

5. The apparatus comprises a fabric and an aqueous solution impregnated into the fabric. The sheet-like material according to claim 3, wherein the aqueous solution contains 10% by mass or more and 15% by mass or less of ethanol, and contains 80% by mass or more and 90% by mass or less of water.

6. The sheet-like material according to claim 3, wherein the sheet-like material is in the shape of a strip, and perforations are formed along the longitudinal direction of the sheet-like material at predetermined intervals along a direction intersecting the longitudinal direction.

7. A set of a cooler bag and a sheet-like material, comprising a cooler bag as described in claim 1 or claim 2, and a sheet-like material as described in any one of claims 3 to 6, contained within the main body of the bag.

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