JP3204648U - Moisture absorber - Google Patents

Abstract

Provided is a moisture absorbent device that can be freely adjusted according to the internal shape of the head mounted device and that absorbs and deodorizes the head mounted device. A first sheet 3 having a moisture absorption function can be deformed into a cylindrical shape or a truncated cone shape, and a second sheet 5 having a moisture absorption function is formed such that the first sheet 3 has a cylindrical shape or a truncated cone shape. A state in which at least one opening surface in the deformed state is closed, the first sheet 3 is deformed into a cylindrical shape or a truncated cone shape, and the second sheet 5 is covered on at least one opening surface. Therefore, it is provided inside the head-mounted article. [Selection] Figure 1

Description

  The present invention relates to a technique of a moisture absorbing device that is attached to the inside of a head-mounted device such as a hat, a helmet, and a protective gear, and performs moisture absorption and deodorization.

  In general, a head mounting tool is used to protect a human head from an external impact or the like. Head wearing devices include hats, helmets, and armor. The hat is used, for example, as a cold protection, to block sunlight, or for fashion. The helmet is used as a protective device for protecting the head when riding a bicycle or a motorcycle, for example, and is worn for work or the like at a construction site or in a factory. Armor is used as protection for kendo and kempo. These are used as needed and are necessary tools.

  When such a head-mounted device is mounted in a hot summer season, the head is likely to get muddy. When the head is steamed, it can have a negative effect on the hair and scalp, or it can be very uncomfortable. When the head is steamed, sweat is generated, and sweat is attached to the head-mounted device, resulting in dampness and a bad odor. There is a proposal for solving such a problem of the head-mounted device (see Patent Document 1).

JP 2006-316397 A

  The device described in Patent Document 1 is a replaceable inner removable inner cap, and can be used for fine adjustment of the size when there is no head size and helmet size. is there. However, this publication does not describe any means for fine adjustment of the size.

  In view of the above, an object of the present invention is to provide a moisture absorbing device that can be freely and closely matched to the internal shape of the head mounting device, and absorbs and deodorizes the head mounting device.

  The above object is achieved by the device described below.

  1. A first sheet and a second sheet each having a moisture absorption function, wherein the first sheet can be deformed into a cylindrical shape or a truncated cone shape, and the second sheet has a cylindrical shape as the first sheet; Or it has a shape that closes at least one of the opening surfaces in a state of being deformed into a truncated cone shape, and the first sheet is deformed into a cylindrical shape or a truncated cone shape, and the second opening is formed on at least one of the opening surfaces. A hygroscopic device that is provided inside a head-mounted article in a state where the sheet is covered.

  2. 2. The moisture absorbent device according to 1, wherein the first sheet and the second sheet are detachably fixed to each other.

  3. 3. The hygroscopic tool according to 1 or 2, further comprising a holding portion that holds the cylindrical shape or the truncated cone shape in a state where the first sheet is deformed into a cylindrical shape or a truncated cone shape.

  4). The hygroscopic tool according to any one of 1 to 3, wherein the size of the cylindrical shape or the truncated cone shape is adjustable.

  5. The moisture absorption device according to any one of 1 to 4, further comprising a moisture absorption sensor.

  6). The hygroscopic device according to any one of 1 to 5, which has a deodorizing function.

  7). The hygroscopic tool according to any one of claims 1 to 6, wherein the first sheet has a shape in which at least some of the corners are partially removed.

  It is possible to provide a moisture absorbing tool that can be freely adjusted according to the internal shape of the head wearing tool and that absorbs and deodorizes the head wearing tool.

It is a top view of hygroscopic tool 1 concerning one embodiment of the present invention. It is a bottom view of hygroscopic tool 1 concerning one embodiment of the present invention. 3 is a plan view of the first sheet 3. FIG. 3 is a bottom view of the first sheet 3. FIG. 4 is a plan view of a second sheet 5. FIG. 6 is a bottom view of the second sheet 5. FIG. It is a schematic diagram which shows the middle process which deform | transforms the 1st sheet | seat 3. FIG. It is a schematic diagram of the 1st sheet | seat 3 transformed into the cylindrical shape. It is a front view which shows the outline | summary of the state which united the 2nd sheet | seat 5 with the 1st sheet | seat 3. FIG. It is a rear view which shows the outline | summary of the state which united the 2nd sheet | seat 5 with the 1st sheet | seat 3. FIG. FIG. 2 is a front view showing an outline of a state in which a second sheet 5 is put on one opening of the first sheet 3. 4 is a rear view showing an outline of a state in which the second sheet 5 is placed on one opening of the first sheet 3. FIG. It is a top view of the moisture absorption tool which concerns on other embodiment which consists of the 2nd sheet | seat 51 and the 1st sheet | seat 31 which have two snap buttons. 3 is a front view showing an outline of a state in which a second sheet 51 is combined with a first sheet 31. FIG. 4 is a rear view showing an outline of a state in which the second sheet 51 is combined with the first sheet 31. FIG. 3 is a schematic diagram of a state in which a second sheet 51 is placed on one opening of the first sheet 31. FIG. It is a schematic diagram which shows attaching the moisture absorption tool 1 to the helmet 20 for motorbikes. FIG. 3 is a schematic diagram of a state in which the moisture absorbent 1 is inscribed in the helmet 20 and is attached. It is a schematic diagram in which only the second seat 5 is inscribed inside the helmet 20 for a motorcycle. 1 is a schematic diagram of a general gentleman hat 30. FIG. It is a schematic diagram in the case of using the 1st sheet 3 shape | molded in the shape from which the four corners were partially removed made into a truncated cone shape. FIG. 3 is a schematic view of a state in which a first sheet 3 is mounted in the shape of a truncated cone inside the hat 30. 2 is a schematic cross-sectional view of a moisture absorbent sheet 60. FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a plan view of a hygroscopic tool 1 according to an embodiment of the present invention, and FIG. 2 is a bottom view. A hygroscopic tool 1 according to an embodiment of the present invention includes a first sheet 3 and a second sheet 5 each having a hygroscopic function. The first sheet 3 can be deformed into a cylindrical shape or a truncated cone shape. The second sheet 5 has a shape that closes at least one of the opening surfaces of the cylindrical shape or the truncated cone shape in a state where the first sheet 3 is deformed into the cylindrical shape or the truncated cone shape. And this hygroscopic tool 1 is provided inside the head-mounted article in a state in which the first sheet 3 is deformed into a cylindrical shape or a truncated cone shape and the second sheet 5 is covered on at least one opening surface thereof. It can be used.

  FIG. 3 is a plan view of the first sheet 3, and FIG. 4 is a bottom view of the first sheet 3. FIG. 5 is a plan view of the second sheet 5, and FIG. 6 is a bottom view of the second sheet 5. The first sheet 3 is flexible and deformable, and includes a moisture absorption sensor 9, a hook-and-loop fastener 7, a hook-and-loop fastener 13, and a snap button 110.

  The moisture absorption sensor 9 is obtained by, for example, applying a predetermined amount of cobalt chloride on the surface. When cobalt chloride is anhydrous, the color is blue, and when the humidity in the atmosphere increases and becomes dihydrate, it becomes purple, and when the humidity increases further, it becomes hexahydrate and becomes pink. A person can recognize the degree of moisture absorption by visually recognizing this discoloration. If it is determined that the degree of moisture absorption has increased due to discoloration, it can be dried with reference to the color change using means such as sun drying or a dryer.

  As for the hook-and-loop fastener 7 and the hook-and-loop fastener 13, for example, one has hook-like raised portions, and the other has raised portions densely formed in a loop shape. When both are pressed, hook-like raised portions and raised pieces densely formed in a loop shape are formed. It is entangled and expresses a fixing force, and can be affixed or removed freely by human power. After the first sheet 3 is deformed into a cylindrical shape or a truncated cone shape, the cylindrical shape or the truncated cone shape can be held by attaching the surface fastener 7 and the surface fastener 13. Therefore, the hook-and-loop fastener 7 and the hook-and-loop fastener 13 have a role of a holding part.

  The snap button 11 is paired with a later-described snap button 110 of the second sheet 5. For example, one has a convex portion and the other has a concave portion, and the convex portion and the concave portion are fitted. In this way, the two buttons are united and can be freely attached and detached by human power.

  The second sheet 5 is flexible and deformable, and includes a snap button 11 that is paired with the snap button 110. The snap button 11 is configured to be fitted with the snap button 110 of the first sheet 3.

  The 1st sheet | seat 3 and the 2nd sheet | seat 5 are equipped with the material which has air permeability and has a moisture absorption function inside. Since the first sheet 3 and the second sheet 5 are air permeable, they can transmit air and moisture. The material is not limited as long as it has air permeability, and examples thereof include a nonwoven fabric, a woven fabric, and a knitted fabric. The material having a hygroscopic function may be any material as long as the material has a hygroscopic function. For example, silica gel is preferably used. The structures of the first sheet 3 and the second sheet 5 will be described later.

  The first sheet 3 has, for example, a rectangular shape, and four corners are rounded. The first sheet 3 has flexibility and can be deformed, and can be easily deformed into a cylindrical shape or a truncated cone shape. FIG. 7 is a schematic diagram showing an intermediate process for deforming the first sheet 3. As shown in FIG. 7, when the first sheet 3 is deformed into a cylindrical shape, the surface fastener 7 and the surface fastener 13 can be brought into contact with each other and fixed to each other to maintain the cylindrical shape. At this time, since the surface fastener 7 is long in the longitudinal direction of the first sheet 3, the diameter of the cylindrical shape can be freely changed by changing the position of the surface fastener 7 that contacts the surface fastener 13. Moreover, the 1st sheet | seat 3 can be deform | transformed into a truncated cone shape instead of a cylindrical shape by changing the angle made to contact the surface fastener 13 and the surface fastener 7. FIG. That is, the size when the first sheet 3 is deformed into a cylindrical shape or a truncated cone shape can be adjusted. FIG. 8 is a schematic view of the first sheet 3 deformed into a cylindrical shape. FIG. 9 is a front view showing an outline of a state in which the second sheet 5 is combined with the first sheet 3. FIG. 10 is a rear view showing an outline of a state in which the second sheet 5 is combined with the first sheet 3. Thus, the 2nd sheet | seat 5 is united with the 1st sheet | seat 3 deform | transformed cylindrically by making the snap button 11 and the snap button 110 fit. FIG. 11 is a front view showing an outline of a state in which the second sheet 5 is placed on one opening of the first sheet 3. FIG. 12 is a rear view showing an outline of a state in which the second sheet 5 is placed on one opening of the first sheet 3.

  The second sheet 5 has flexibility and can be deformed. The second sheet 5 covers one opening of the cylinder of the cylindrical first sheet 3 and closes the opening. In the present embodiment, the second sheet 5 has a slightly rectangular shape, but may have a shape close to a round shape in accordance with the shape of the opening formed by deforming the first sheet 3 into a cylindrical shape.

  FIG. 13 is a plan view of a moisture absorber 100 according to another embodiment including a second sheet 51 having two snap buttons and a first sheet 31. The first sheet 31 includes a snap button 112 in addition to the structure of the first sheet 31. The second sheet 51 has two snap buttons 11 and a snap button 111. The shape of the second sheet 51 includes two snap buttons and has a shape close to a rhombus. The snap button 112 of the first sheet 31 is fitted with the snap button 111 of the second sheet 51. FIG. 14 is a front view showing an outline of a state in which the second sheet 51 is combined with the first sheet 31. FIG. 15 is a rear view showing an outline of a state in which the second sheet 51 is combined with the first sheet 31. By fitting the snap button 11 and the snap button 110 and fitting the snap button 111 and the snap button 112 to the first sheet 31 thus deformed into a cylindrical shape, the first sheet 31 is formed. 31 and the 2nd sheet | seat 51 are united.

  FIG. 16 is a schematic view of a state in which the second sheet 51 is placed on one opening of the first sheet 31. Thus, since the 1st sheet | seat 31 and the 2nd sheet | seat 51 are being fixed in two places, it is possible to hold | maintain the shape of the cylinder comprised with the 1st sheet | seat 31 and the 2nd sheet | seat 51 firmly. Become.

  The hygroscopic tool 1 and the hygroscopic tool 100 are formed by deforming the first sheet 3 into a cylindrical shape or a truncated cone shape, and placing the second sheet 5 on at least one opening surface of the inner side of the head-mounted article. It is provided for moisture absorption or deodorization of the head-mounted item. Head-mounted items include helmets, hats, and armor. Helmets include a helmet worn when riding a motorcycle and a helmet that ensures head safety at a construction site. As a hat, it can be applied to various types such as a general-purpose hat, a sports hat, a cap, a gentleman's hat, a beret, and a cap of rain gear. There are armor for kendo, Japanese kempo, and other martial arts.

  FIG. 17 is a schematic view showing that the moisture absorber 1 is attached to the motorcycle helmet 20. FIG. 18 is a schematic diagram of a state in which the hygroscopic tool 1 is attached to the helmet 20 while being inscribed therein. The motorcycle helmet 20 is an open face type helmet. It goes without saying that not only the open face type but also the full face type can be used. The hygroscopic tool 1 is mounted on the helmet 20 from the direction of the second sheet 5 and is inscribed so that the outer surface of the hygroscopic tool 1 is along the inner surface portion of the helmet 20 where the head contacts. Needless to say, the outer surface of the hygroscopic tool 1 does not need to be in contact with all of the inner surface portion of the helmet 20, and performance such as moisture absorption is exerted even when close to each other. The hygroscopic tool 1 is firmly fixed to the inside of the helmet 20 by transmitting the restoring force that the first sheet 3 restores from the cylindrical surface shape to the helmet 20 from the inside of the helmet 20.

  Instead of using the entirety of the hygroscopic tool 1 for moisture absorption or the like inside the head-mounted article, only a part of the hygroscopic tool 1 may be used. For example, only the first sheet 3 may be used, or only the second sheet 5 may be used. FIG. 19 is a schematic view in which only the second seat 5 is inscribed inside the helmet 20 for a motorcycle. Since the second sheet 5 is flexible and deformable, the restoring force for restoring the original shape while being deformed to the shape inside the helmet 20 is transmitted from the inside of the helmet 20 to the helmet 20, so And are fixed to the inside of the helmet 20.

  Thus, since the moisture absorption tool 1 is flexible and deformable, it can be used for various head-mounted items. In the case where the inside of the head-mounted article has a truncated cone shape, it is desirable to use the moisture absorbing device 1 by deforming it into a truncated cone shape. The first sheet 3 has a rectangular shape, and as shown in FIG. 7, the hook-and-loop fastener 7 and the hook-and-loop fastener 13 are each in an elongated shape, and are provided in an arrangement in which the longitudinal directions thereof are orthogonal to each other. It has been. Therefore, when the first sheet 3 is deformed into a truncated cone shape, the user can easily join the hook-and-loop fastener 7 and the hook-and-loop fastener 13 with the first sheet 3 wound in the truncated cone shape by hand. The shape can be easily retained.

  FIG. 20 is a schematic view of a general gentleman's hat 30. The inscribed part of the head of a general gentleman's hat is often in the shape of a truncated cone, and if the first sheet 3 is held in the shape of a truncated cone, the inside of the gentleman's hat 30 It can be fitted and fitted into the inscribed portion of the head of the head, and the moisture absorbing function and the deodorizing function can be efficiently exhibited from the inner portion of the gentleman's hat 30.

  By the way, when the first sheet 3 is cylindrical, the four corners of the rectangular first sheet 3 are hidden, but when the first sheet 3 is deformed into a non-cylindrical state such as a truncated cone. The four corners of the rectangular first sheet 3 are projected to the outside. Then, when the head-mounted object is placed on the installation surface with the first sheet 3 mounted inside the head-mounted object, the tips of the four corners of the first sheet 3 come into contact with the installation surface. Sitting on the installation surface of the attachment may be unsatisfactory and unstable. Therefore, in another embodiment, it is desirable to form the first sheet 3 into a shape in which the four corners are partially removed.

  FIG. 21 is a schematic diagram in the case where the first sheet 3 formed into a shape in which the four corners are partially removed is used in the shape of a truncated cone. In the first sheet 3 in FIG. 21, the four corners 34 of the first sheet 3 are in a state where a portion corresponding to about one third of the short side is cut into a circular shape. By doing in this way, the corner 34 portion does not protrude, and the both ends of the first sheet 3 are smoothly overlapped. Therefore, when the bottom part of the truncated cone-shaped first sheet 3 attached to the head-mounted article protrudes outside the head-mounted article, most of the truncated cone-shaped bottom part of the first sheet 3 is on the installation surface. Therefore, it is possible to obtain an effect that the first seat 3 is satisfactorily and the head-mounted article is stably installed on the installation surface. In addition, it does not necessarily need to be circular, and it may be cut in a straight line on the short side and the long side.

  FIG. 22 is a schematic view of a state in which the first sheet 3 is mounted in the inside of the hat 30 while being inscribed in a truncated cone shape. In this way, the user himself can change the shape of the first sheet 3 in accordance with the shape inside the head-mounted article.

  Next, the structure of the 1st sheet | seat 3 and the 2nd sheet | seat 5 is demonstrated based on FIG. The first sheet 3 and the second sheet 5 include a moisture absorbing sheet 60 having a moisture absorbing function and a deodorizing function. FIG. 23 is a schematic cross-sectional view of the moisture absorbent sheet 60. The hygroscopic sheet 60 includes a base material sheet 61 and a base material sheet 63 which are flexible and breathable, and a plurality of granular silica gels 65 are sandwiched between the superposed surfaces. . The base material sheet 61 and the base material sheet 63 are not particularly limited as long as they are flexible and have air permeability, and examples thereof include a nonwoven fabric, a woven fabric, and a knitted fabric. The base sheet 61 is an aggregate of webs 67, and the base sheet 63 is an aggregate of webs 69.

  After both sheets are overlaid, the portion of the sheet surrounding the silica gel 65 is stitched or heat welded to fix the silica gel 65 between the opposing surfaces of the base sheet 61 and the base sheet 63. That is, as shown in FIG. 23, the moisture absorbing sheet 60 is obtained by superposing a pair of upper and lower base sheet 61 and base sheet 63 which are composed of a nonwoven fabric. A large number of granular silica gels 65 are sandwiched between the facing surface 71 and the facing surface 73.

  As shown in FIG. 23, the silica gel 65 is layered between the base material sheet 61 and the base material sheet 63, and the opposing surface 71 and the opposing surface 73 between the opposing base material sheet 61 and the base material sheet 63, It is distributed almost uniformly over the whole. And in the state which clamped these silica gels 65 from the upper and lower sides, between the opposing surface 71 and the opposing surface 73 of the base material sheet 61 and the base material sheet 63 is the constituent material of the base material sheet 61 and the base material sheet 63. A plurality of webs 75 are stitched together.

  In order to fix the silica gel, needle punches are applied to a polymerization portion between the base sheet 61 and the base sheet 63 at a plurality of positions in a state where the silica gel 65 is sandwiched from both the upper and lower sides. That is, the base sheet 61 and the web 75 of the base sheet 63 are mechanically entangled with each other at each needle punch location, whereby the base sheet 61 and the base sheet 63 are joined and fixed in the vicinity of the entangled portions. ing. As a result, the silica gel 65 is sandwiched and held immovably by the base material sheet 61 and the base material sheet 63, which are stitched between the opposing surface 71 and the opposing surface 73 by the webs 75, in a layered state.

  The particles of silica gel 65 have a large number of fine through holes, and have a function of absorbing moisture in the air by surface adsorption or capillary action in a high humidity atmosphere and releasing the absorbed moisture in a dry atmosphere. ing. Therefore, in order to improve the moisture absorption function and the moisture release function, the silica gel 65 in the present embodiment has a fine space volume of 0.5 to 1.0 ml / g and a surface area of 650 to 350 m2 / g. Is adopted. In addition, a fine through hole having a diameter of 30 to 120 angstroms is preferable in order to satisfactorily exhibit a moisture absorption function and the like. Silica gel also adsorbs ammonia, trimethylamine, hydrogen sulfide, mercaptan, and the like, which are the sources of odors scattered in the air, in addition to moisture, and has a deodorizing function.

  In this way, a large number of silica gel particles are sandwiched between the base sheet 61 and the base sheet 63 having air permeability, which are composed of a nonwoven fabric, so that high moisture resistance, hygroscopicity, and deodorizing properties can be achieved. Can be kept over time.

  Silica gel is suitable as a material having a moisture absorbing function and a deodorizing function, but is not limited thereto. For example, natural porous stone such as zeolite and tourmaline, carbonaceous material such as Bincho charcoal, activated carbon, perlite, sodium silicate Etc.

  Although it has a moisture absorption function, it is not good for the hair when the inside of the head-worn item is steamed. However, the moisture-absorbing device 1 and the moisture-absorbing device 100 absorb moisture from the inside of the head-worn item, so The user can feel exhilarating. Furthermore, it is useful for protecting the user's hair when wearing a head-mounted item due to moisture absorption. In addition to moisture absorption, it also has a function of releasing excess moisture into the air when the inside of the head-mounted article is dried, and also has a function of adjusting humidity by reducing drying.

  As described above, according to the present invention, the first sheet and the second sheet each having a moisture absorption function are provided, and the first sheet can be deformed into a cylindrical shape or a truncated cone shape, The sheet has a shape that closes at least one opening surface in a state where the first sheet is deformed into a cylindrical shape or a truncated cone shape, and the first sheet is deformed into a cylindrical shape or a truncated cone shape, With the second sheet covered on at least one of the opening surfaces, a sheet having a moisture absorption function and a deodorizing function can be directly applied from the inner surface of the head-mounted object by using the head sheet. Since moisture absorption and deodorization are performed, it is not necessary to provide a means for fine adjustment of the size as in the background art, and moisture absorption and deodorization can be performed with a simple and high effect.

  In addition, according to the present invention, the first sheet and the second sheet are detachably fixed to each other, so that when integrated, the first sheet and the second sheet can be mounted so as to fit snugly on the inner surface of the head mounting part, When each is used, it can be used by being individually attached to the inner surface of the head mounting portion, and a hygroscopic device applicable to various types of head mounting portions can be provided.

  In addition, according to the present invention, the first sheet has the holding portion that holds the cylindrical shape or the truncated cone shape in a state of being deformed into the cylindrical shape or the truncated cone shape, so that the shape of the first sheet can be firmly maintained. It is possible to provide a hygroscopic tool that can be used.

  Moreover, according to this invention, the magnitude | size of the said cylindrical shape or the said truncated cone shape can be adjusted, and the moisture absorption tool applicable to the head mounting part of various shapes can be provided.

  In addition, according to the present invention, by providing a moisture absorption sensor, it is possible to know the degree of moisture absorption by visually observing the discoloration, and if it is determined that the moisture absorption level has increased, By using means such as the above, it is possible to provide a moisture absorbent that can be dried with reference to the change in color.

  Further, according to the present invention, it is possible to provide a hygroscopic tool capable of removing not only moisture absorption but also bad odor of the head mounting portion by having a deodorizing function.

  Further, according to the present invention, the first sheet has a shape in which at least some of the corners are partially removed, so that the base of the truncated cone-shaped first sheet attached to the head-mounted object is Most of the frustoconical bottom of the first seat is installed on the installation surface when protruding outside the head-mounted item, so the first seat sits well and the head-mounted item is stable. Thus, it is possible to provide a moisture absorbent that can obtain the effect of being installed on the installation surface.

DESCRIPTION OF SYMBOLS 1 Hygroscopic tool 3,31 1st sheet | seat 5,51 2nd sheet | seat 7,13 Surface fastener 9 Hygroscopic sensor 20 Helmet 30 Hat 34 Corner 60 Hygroscopic sheet 61,63 Base material sheet 65 Silica gel 67,69 Web 71,73 Opposite surface 75 Web 11, 110, 111, 112 Snap button

Claims (7)

Having a first sheet and a second sheet each having a moisture absorption function;
The first sheet can be deformed into a cylindrical shape or a truncated cone shape,
The second sheet has a shape that closes at least one opening surface in a state where the first sheet is deformed into a cylindrical shape or a truncated cone shape,
A moisture absorbent device, wherein the first sheet is deformed into a cylindrical shape or a truncated cone shape, and is used by being provided on the inner side of the head-mounted article in a state where the second sheet is covered on at least one opening surface thereof. .   The moisture absorber according to claim 1, wherein the first sheet and the second sheet are detachably fixed to each other.   The hygroscopic device according to claim 1, further comprising a holding portion that holds the cylindrical shape or the truncated cone shape in a state where the first sheet is deformed into a cylindrical shape or a truncated cone shape.   The hygroscopic device according to any one of claims 1 to 3, wherein the size of the cylindrical shape or the truncated cone shape is adjustable.   The moisture absorption tool according to any one of claims 1 to 4, further comprising a moisture absorption sensor.   It has a deodorizing function, The moisture absorption tool as described in any one of Claim 1 to 5 characterized by the above-mentioned.   The hygroscopic device according to any one of claims 1 to 6, wherein the first sheet has a shape in which at least some of the corners are partially removed.

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