JPWO2019043978A1 - Dehumidification pack - Google Patents

Abstract

Increase moisture absorption area with simple structure. A bag made of a moisture-permeable waterproof sheet, and a hygroscopic agent enclosed in the bag, the bag being formed into a three-dimensional shape having a plurality of plane portions, and any one of the plurality of plane portions. One is a bottom surface in contact with the placement surface of the installation location, and the other of the plurality of flat portions is a moisture absorption surface facing the space of the installation location.

Description

  INDUSTRIAL APPLICABILITY The present invention is installed in a humid place such as a closet, a closet, a closet, a clog box, a washbasin, a sink, a clothing storage container (clothes case), etc. It relates to a dehumidification pack.

  Conventionally, as this type of dehumidifying pack, there is a sheet-type dehumidifying agent in which a hygroscopic agent is enclosed in a bag made of a moisture permeable film (see, for example, Patent Document 1).

JP 05-068843 A

However, such a conventional sheet type dehumidifier is in a use state set in an installation place such as a chase or a close-in, and the bottom surface of the sheet-like bag body is in contact with the placement surface of the installation place as a whole. About half of the moisture absorption area in the sheet-like bag was blocked.
As a result, the hygroscopic function is halved as compared with the case where the entire sheet-like bag body absorbs moisture, and the hygroscopic speed is also slowed accordingly, and there is a problem that it takes time to reliably dehumidify a humid environment.

  In order to solve such a problem, a dehumidification pack according to the present invention includes a bag body made of a moisture-permeable waterproof sheet, and a hygroscopic agent enclosed in the bag body, and the bag body includes a plurality of bags. The moisture absorbing surface is formed into a three-dimensional shape having a plurality of planar portions, and any one of the plurality of planar portions is a bottom surface in contact with the placement surface of the installation location, and the other of the plurality of planar portions is opposed to the space of the installation location. It is characterized by becoming.

It is explanatory drawing which shows the whole structure of the dehumidification pack which concerns on embodiment of this invention, (a) is the perspective view seen from the front side, (b) is the perspective view seen from the bottom face side. It is explanatory drawing which shows the modification of the dehumidification pack which concerns on embodiment of this invention, and is the perspective view seen from the front side.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
The dehumidification pack A according to the embodiment of the present invention has a high humidity as shown in FIGS. 1 to 2 such as a closet, a closet, a closet, a clog box, a washbasin, a sink, a clothing storage container (clothes case), etc. It is a dehumidifying agent that removes moisture from the space S of the installation place by being placed on the placement surface P of the installation place.
Before such moisture removal is performed, the dehumidifying pack A is housed in an outer bag (not shown) in a sealed state to prevent useless moisture absorption.
More specifically, the dehumidification pack A according to the embodiment of the present invention includes a bag body 1 made of a moisture permeable waterproof sheet and a hygroscopic agent 2 enclosed in the bag body 1 as main components. Yes.

The bag body 1 is composed of a moisture permeable waterproof sheet or a moisture permeable film having minute ventilation holes (not shown) in units of several microns, and has a structure that allows moisture to pass through but does not allow liquids to pass through the minute ventilation holes. .
Specific examples of the moisture permeable waterproof sheet and the moisture permeable film include a microporous film produced by stretching polyethylene, polypropylene, and the like containing calcium carbonate, DuPont Tyvek (registered trademark), and Tokuyama NF. It is preferable to use a sheet or the like.
Furthermore, the bag body 1 is formed in a three-dimensional shape having a plurality (two or more) of plane portions 10.
Examples of the three-dimensional shape include a cube, a rectangular parallelepiped, a tetrahedron, a polyhedron including a prism, a pyramid, a truncated pyramid, a cylindrical body, or a shape similar to these.
Among these, a polyhedron surrounded by four or more plane portions 10 is preferable. The polyhedron includes a quasi-regular polyhedron composed of two or more kinds of regular polygons and a semi-regular polyhedron other than the regular polyhedron among convex uniform polyhedrons. Specifically, it is preferable to form the bag body 1 into a polyhedron such as a tetrahedron or a hexahedron.
Furthermore, the bag body 1 becomes a bottom surface 10a in contact with the placement surface P of the installation location in the usage state, and the other of the plurality of plane portions 10 faces the space S of the installation location. It is comprised so that it may become the moisture absorption surface 10b.
Further, it is preferable to continuously form an extension portion 11 a facing the placement surface P on at least one side of the plurality of flat surface portions 10.

In the case shown in FIGS. 1A and 1B as a specific example of the bag body 1, it is formed in a tetrahedron (a regular tetrahedron in the illustrated example).
Specifically, the first cylindrical sheet 11 is used as a moisture permeable waterproof sheet or a moisture permeable film. The first cylindrical sheet 11 is sealed at both ends in the axial direction with a predetermined interval with a first horizontal seal portion that becomes a pair of extension portions 11a, so that the first inside the bag body 1 The accommodating part 21 is formed. The extension part (first lateral seal part) 11a is formed in a strip shape in a direction intersecting with the axial direction of the first cylindrical sheet 11 and relatively orthogonal to each other. Superimpose and bond.
For this reason, the inside of the bag body 1 (the first accommodating portion 21) has a filling space in which the moisture absorbent 2 described later is accommodated and a water accommodation space in which moisture absorbed by the moisture absorbent 2 is accommodated. Yes.
With such a configuration, a tetrahedron (regular tetrahedron) container such as Tetra Pak (registered trademark) is created as the bag body 1.
In the illustrated example, the first cylindrical sheet 11 is used in which both ends in the width direction of the sheet main body are sealed by the vertical seal portions 11b.

As another modification, as shown in FIG. 2, the bag 1 can be changed to a hexahedron (regular hexahedron in the illustrated example).
In the example of illustration, the 2nd cylindrical sheet | seat 12 of a cross-sectional rectangle (The rectangle including a rectangle and a square including a square is a right angle) is used as a moisture-permeable waterproof sheet or a moisture-permeable film. By sealing both axial ends of the second cylindrical sheet 12 with a predetermined interval with a pair of second lateral seal portions 12a, the second accommodating portion 22 is provided inside the bag body 1. It is formed. The second horizontal seal portions 12a are each formed in a strip shape in a direction intersecting the axial direction of the second cylindrical sheet 12, and both end portions in the axial direction are overlapped and bonded.
For this reason, the inside of the bag body 1 (second housing portion 22) has a filling space in which the moisture absorbent 2 described later is housed and a water housing space in which the moisture absorbed by the moisture absorbent 2 is housed. Yes.
With such a configuration, substantially triangular flaps 13 are formed at both ends of the pair of second horizontal seal portions 12a, and the flaps 13 are adhered to the surface of the bag body 1 to form a brick (hexahedral or regular hexahedron). A container is created.
In the illustrated example, the second cylindrical sheet 12 without a vertical seal is used.
Although not shown as a modification of the bag body 1, the first cylindrical sheet 11 shown in FIGS. 1A and 1B can be changed to one without a vertical seal, or the second cylinder shown in FIG. It is also possible to change the cylindrical sheet 12 to one having a vertical seal.

As the hygroscopic agent 2 enclosed in the bag body 1, it is preferable to use a deliquescent substance in which the crystalline solid absorbs water vapor or moisture which becomes moisture and dissolves. Specific examples of the deliquescent material include calcium chloride, magnesium chloride, lithium chloride, lithium bromide, potassium acetate, sodium phosphate, and sodium ultraphosphate. Of these, calcium chloride and magnesium chloride are preferred from the viewpoint of moisture absorption capacity and price. It is also possible to use one kind or a mixture of two or more kinds.
When a deliquescent material such as calcium chloride is used as the hygroscopic agent 2, the deliquescent liquid that has been liquefied along with moisture absorption may leak from the bag body 1 and contaminate the futon or clothing.
Therefore, it is necessary to mix the deliquescent substance with a thickener (gelling agent), so that the deliquescent liquid is gelled and the fluidity is decreased to prevent the deliquescent liquid from separating.
That is, as the hygroscopic agent 2, it is preferable to use a material in which a granular crystalline solid is gelled with moisture absorption.
Examples of the thickener (gelling agent) include pregelatinized starch (pregelatinized starch), sodium polyacrylate, polyvinyl alcohol, polyacrylamide, methylcellulose, and guar gum.

As a specific example of the hygroscopic agent 2, it is preferable to blend 30 to 70% by weight of pregelatinized starch with respect to 100% by weight of calcium chloride.
If the blending amount of the pregelatinized starch with respect to 100% by weight of calcium chloride is less than 30% by weight, the deliquescent solution begins to separate, which is not preferable.
If the blending amount of the alpha starch is increased more than necessary, the blending ratio of the main calcium chloride blending amount is reduced accordingly. If the blended amount of pregelatinized starch with respect to 100% by weight of calcium chloride exceeds 70% by weight, the intended hygroscopic function cannot be obtained.
Therefore, in a limited volume in the bag body 1, starch that has been cross-linked in addition to pregelatinization so that water separation performance can be exhibited without taking up a volume with high density pregelatinized starch and without blending in a large amount. Is preferably used.
Furthermore, deliquescent substances such as calcium chloride tend to gradually decrease the moisture absorption rate due to a decrease in concentration accompanying moisture absorption. However, when the pregelatinized starch absorbs calcium chloride and the pregelatinized starch expands, the distance between the moisture permeable waterproof sheet of the bag body 1 and the calcium chloride is close, and there is an effect of suppressing a decrease in moisture absorption rate. .

On the other hand, it is preferable that the bag body 1 is provided with means 3 for visualizing the state of the moisture absorbent 2 as the contents from the outside.
In the case shown in FIG. 1A as a specific example of the visualizing means 3, a belt-like window 31 or a plurality of windows 32 made of a transparent or translucent sheet or film is provided on a part of the bag 1, and colored alpha. When the starch starch expands with moisture absorption, the moisture absorption state can be visually confirmed through the belt-like window 31 and the plurality of windows 32. As a result, it is convenient because the user can easily know the life of the moisture absorbent 2.
Although not shown in the drawings as other examples, the shape and arrangement of the belt-like window 31 and the plurality of windows 32 can be changed to those other than the example shown in the drawing, almost the entire bag 1 can be made transparent or translucent, It is also possible to provide the visualizing means 3 also in what is shown in FIG. 2, the visualizing means 3 may be configured with a structure different from the illustrated example, or the bag body 1 may be configured without the visualizing means 3.

And the result of having experimented about the dehumidification function of the dehumidification pack A which concerns on embodiment of this invention is demonstrated.
In addition to the tetra-shaped (tetrahedral) dehumidification pack A shown in FIGS. 1A and 1B, a sheet-type dehumidifier and a tank-type dehumidifier were prepared, and a moisture absorption test was performed under the same conditions. . The sheet-type dehumidifying agent is as described in JP-A-05-068843. The tank-type dehumidifying agent has a conventionally well-known structure in which a hygroscopic agent is stored in a tank-like container.
In the moisture absorption test, the total capacity of the moisture absorbents accommodated in the dehumidification pack A, the sheet type dehumidifier, and the tank type dehumidifier is set to be substantially the same.
Furthermore, in accordance with JIS S3106-1994 7.8, the elapsed time until each amount of moisture absorption reaches the target value (50 mL) is measured in a temperature and humidity environment (temperature 25 ° C. × humidity 80%) assuming the use environment. A moisture absorption test was performed.
As a result of the moisture absorption test, the 50 mL arrival speed in the tetra-shaped dehumidification pack A is about 1.5 times faster than the 50 mL arrival speed in the sheet-type dehumidifier, and about 2. It has been demonstrated to be 5 to 2.6 times faster.

By the way, the enclosed amount of the hygroscopic agent 2 with respect to the internal volume of the bag body 1 (capacities of the first accommodating portion 21 and the second accommodating portion 22) is set in accordance with the temperature / humidity of the installation location and the hygroscopic rate by the hygroscopic agent 2. Is done.
The reason for this is that when the moisture absorbent 2 with a high moisture absorption rate is used in a particularly humid or hot and humid environment, the moisture absorbed by the moisture absorbent 2 fills the water storage space in a short period of time. After that, it becomes impossible to absorb moisture. In particular, the humid environment includes places such as the sink and under the sink, and the hot and humid environment is a hot and humid area such as Hong Kong.
Especially when used in a humid environment or a hot and humid environment, the amount of moisture absorbent 2 enclosed is greater than when used in a closet, closet, closet, clog box, clothing storage container (clothing case), etc. in Japan. Therefore, it is necessary to change the volume ratio between the water storage space and the filling space of the hygroscopic agent 2 so as to reduce the amount.
Therefore, it is preferable to set the volume of the water storage space to be a predetermined multiple of the volume of the filling space of the moisture absorbent 2.

As a specific example of the enclosed amount of the hygroscopic agent 2, the bag body 1 has a tetra shape (regular tetrahedron) shown in FIGS. 1 (a) and 1 (b), and the hygroscopic agent 2 is mainly composed of a deliquescent substance (calcium chloride). A case will be described.
In Japan, the maximum moisture absorption of household dehumidifiers that use calcium chloride or the like for dehumidification in relatively small spaces such as close-in and chans of ordinary households is set at a standard temperature of 25 ° C and a standard humidity of 80% according to JIS. Has been.
In this standard environment (temperature is 25 ° C. and humidity is 80%), the volume of the water storage space is set to about twice the volume of the filling space. That is, the volume ratio between the water storage space and the filling space is set to about 2: 1.
One side with 7cm in bag 1 tetra shape, when the internal volume of the bag body 1 is about 40.4 cm ³ is about the volume of the water containing space 26.93Cm ^3, about 13.46Cm ³ the volume of the filling space To do. This corresponds to about 14.6 g in terms of filling amount of deliquescent material (calcium chloride).
On the other hand, when used in a particularly humid place such as around a sink or under a sink, or in a hot and humid area such as Hong Kong, the water storage space is approximately 2.2 times the volume of the filling space. , Preferably about 2.5 times or more.
When the side of the tetra-shaped bag 1 is 7 cm and the inner volume of the bag 1 is about 40.4 cm ³ , the volume of the water storage space is about 27.8 cm ³ or more, preferably about 28.9 cm ³ or more, The volume of the filling space is about 12.6 cm ³ , preferably about 11.5 cm ³ . This corresponds to a filling amount of deliquescent material (calcium chloride) of about 13.0 g, preferably about 11.7 cm ³ .

According to the dehumidification pack A according to the embodiment of the present invention, any one of the plurality of plane portions 10 of the bag body 1 formed in a three-dimensional shape with respect to the placement surface P of the installation place in the use state. The bottom surface 10a is placed, and the bottom surface 10a is brought into contact with the placement surface P. Thereby, the moisture absorption surface 10b used as the other plane part 10 absorbs moisture toward the space S of an installation location, and dehumidification of an installation location is performed.
Furthermore, even if the bag body 1 rolls, only one of the plurality of flat portions 10 becomes the bottom surface 10a, and the other moisture absorption surface 10b does not come into contact with the placement surface P, and the moisture absorption area does not decrease.
Therefore, the moisture absorption area can be increased with a simple structure.
As a result, compared with the conventional sheet-type dehumidifying agent, the moisture absorption speed is increased, so that the humid environment can be dehumidified in a short time, and the dehumidifying function can be improved. In addition, since the dehumidifying function does not decrease due to the rolling of the bag body 1, it is not necessary to consider the posture, and the usability is good.
Furthermore, compared with the conventional sheet-type dehumidifying agent, the overall size is reduced and the exclusive space is reduced, so that it can be placed anywhere such as a relatively small installation place. Further improvement of the dehumidifying function can be achieved by placing a number of dehumidifying packs A at an installation place where one sheet type dehumidifying agent is placed.

In particular, the bag body 1 is preferably formed in a polyhedron surrounded by four or more polygons as the plurality of plane portions 10.
In this case, in the polyhedral bag body 1, one of the four or more polygonal planes 10 is the bottom surface 10a, and the other three or more planes 10 are the moisture absorption surface 10b.
Therefore, the number of hygroscopic surfaces 10b arranged in three dimensions with respect to the placement surface P can be increased to three or more.
As a result, the moisture absorption area increases with an increase in the moisture absorption surface 10b as compared with the conventional sheet type dehumidifier, so that the moisture absorption rate can be increased and the dehumidification function can be further improved.

Furthermore, it is preferable to form the bag body 1 into a tetrahedron (a regular tetrahedron in the illustrated example) shown in FIGS. 1A and 1B or a hexahedron shown in FIG. 2 (a regular hexahedron in the illustrated example).
When the bag body 1 is a tetrahedron, one of the four flat portions 10 serves as the bottom surface 10a, and the other three flat portions 10 serve as the hygroscopic surface 10b.
When the bag body 1 is a hexahedron, one of the six plane portions 10 serves as the bottom surface 10a, and the other five plane portions 10 serve as the moisture absorption surface 10b.
Therefore, the bag body 1 can be easily manufactured using a conventionally known manufacturing apparatus.
As a result, the bag body 1 can be easily mass-produced and the cost can be reduced.

In addition, it is preferable to continuously form an extension portion 11 a facing the placement surface P on at least one side of the plurality of plane portions 10.
In this case, the bottom surface 10a is continuous with the bottom surface 10a by placing any one bottom surface 10a among the plurality of planar portions 10 of the bag body 1 formed in a three-dimensional shape with respect to the mounting surface P at the installation location in use. The extending portion 11a that contacts is also in contact with the placement surface P.
For this reason, the installation area of the bag body 1 with respect to the mounting surface P is increased by the extension portion 11a, and at the same time, the frictional resistance with the mounting surface P is increased.
Therefore, it is possible to suppress rolling and positional deviation of the placed bag body 1.
As a result, the posture of the placed bag body 1 is more stable, and the dehumidifying function can be further improved.

Furthermore, it is preferable that the hygroscopic agent 2 is made of a material that gels with moisture absorption.
In this case, the hygroscopic agent 2 in the bag body 1 absorbs moisture, so that the form of the hygroscopic agent 2 changes to a gel and does not separate from the hygroscopic agent 2.
Therefore, it is possible to prevent the liquid from leaking due to the moisture absorption of the moisture absorbent 2.
As a result, since it does not get dirty with the leaked liquid, it can be used safely in various installation locations. In addition to this, after the hygroscopic agent 2 has completed moisture absorption, the hygroscopic agent 2 can be discarded as it is without taking out the hygroscopic agent 2 from the bag body 1, and further improvement in usability can be achieved.
Further, by checking whether or not the shape of the hygroscopic agent 2 is gelled, the lifetime of the hygroscopic agent 2 can be estimated, and anyone can easily know the replacement time of the hygroscopic agent 2 and is excellent in usability.

Furthermore, the inside of the bag body 1 has a filling space for the moisture absorbent 2 and a water accommodation space for accommodating the moisture absorbed by the moisture absorbent 2, and the volume of the water accommodation space is filled with the moisture absorbent 2. It is preferable to set so as to be a predetermined multiple of the volume.
Even when the dehumidifying pack A is installed in a particularly humid place such as around a sink or under a sink, or in a hot and humid area such as Hong Kong, the volume of the water storage space can be reduced by using a moisture absorbent ( By setting the volume of the filling space of calcium chloride 2 to about 2.2 times or more (preferably about 2.5 times or more), the moisture absorbed by the moisture absorbent 2 fills the water storage space in a short period of time. There is nothing.
Therefore, moisture absorption can be continued for a predetermined period even when used in a particularly humid place or a hot and humid area.
As a result, it can be adjusted to the temperature and humidity to be used, and is excellent in usability.

  In the embodiment shown in the previous embodiment, only the case of tetrahedron and hexahedron is shown as the three-dimensional shape of the bag body 1, but the three-dimensional shape of the bag body 1 is not limited to this. Further, it may be a polyhedron including a quasi-regular polyhedron such as a pyramid, a truncated pyramid, an octahedron, a dodecahedron, and an icosahedron, or a semi-regular polyhedron.

A Dehumidification pack 1 Bag 10 Flat portion 10a Bottom surface 10b Hygroscopic surface 11a Extension 2 Hygroscopic agent P Mounting surface S Space

[0001]
Technical field [0001]
INDUSTRIAL APPLICABILITY The present invention is installed in a humid place such as a closet, a chest, a closet, a clog box, a washbasin, a sink, a clothing storage container (clothes case), etc. It relates to a dehumidification pack.
Background art [0002]
Conventionally, as this type of dehumidifying pack, there is a sheet-type dehumidifying agent in which a hygroscopic agent is enclosed in a bag made of a moisture permeable film (see, for example, Patent Document 1).
Prior Art Literature Patent Literature [0003]
Patent Document 1: Japanese Patent Laid-Open No. 05-068843 Summary of the Invention Problems to be Solved by the Invention [0004]
However, such a conventional sheet type dehumidifier is in a use state set in an installation place such as a chase or a close-in, and the bottom surface of the sheet-like bag body is in contact with the placement surface of the installation place as a whole. About half of the moisture absorption area in the sheet-like bag was blocked.
As a result, the hygroscopic function is halved as compared with the case where the entire sheet-like bag body absorbs moisture, and the hygroscopic speed is also slowed accordingly, and there is a problem that it takes time to reliably dehumidify a humid environment.
Means for Solving the Problems [0005]
In order to solve such a problem, a dehumidification pack according to the present invention includes a bag body made of a moisture-permeable waterproof sheet, and a hygroscopic agent enclosed in the bag body, and the bag body includes a plurality of bags. A planar portion and an extended portion continuously formed on at least one side of the plurality of planar portions, and any one of the plurality of planar portions serves as a bottom surface in contact with the placement surface of the installation location. In addition, the other of the plurality of flat portions excluding the bottom surface is a hygroscopic surface that opposes the space of the installation location, the bottom surface is placed on the mounting surface, and the extension portion is in contact with the mounting surface, The moisture absorption surface takes moisture from the space.

  INDUSTRIAL APPLICABILITY The present invention is installed in a humid place such as a closet, a closet, a closet, a clog box, a washbasin, a sink, a clothing storage container (clothes case), etc., and is used for drying clothes and futons by dehumidification It relates to a dehumidification pack.

  Conventionally, as this type of dehumidifying pack, there is a sheet-type dehumidifying agent in which a hygroscopic agent is enclosed in a bag made of a moisture permeable film (see, for example, Patent Document 1).

JP 05-068843 A

However, such a conventional sheet type dehumidifier is in a use state set in an installation place such as a chase or a close-in, and the bottom surface of the sheet-like bag body is in contact with the placement surface of the installation place as a whole. About half of the moisture absorption area in the sheet-like bag was blocked.
As a result, the hygroscopic function is halved as compared with the case where the entire sheet-like bag body absorbs moisture, and the hygroscopic speed is also slowed accordingly, and there is a problem that it takes time to reliably dehumidify a humid environment.

In order to solve such problems, the dehumidifying pack according to the present invention is a dehumidifying pack placed in a humid installation place including a closet, a closet, a closet, a clog box, a sink, a sink, and a clothing storage container. And a bag body formed into a tetrahedron with a moisture-permeable waterproof sheet , and a hygroscopic agent enclosed in the bag body, wherein the bag body includes a plurality of plane portions and the plurality of plane portions. At least a extension side to be continuously formed, is formed in a three-dimensional shape having the one of the plurality of flat portions is the bottom surface in contact with the mounting surface of the installation location, wherein the plurality of planes excluding the bottom surface of the In the state where the rest of the part is a moisture absorbing surface facing the space of the installation place, the bottom surface is placed on the mounting surface and the extension part is in contact with the mounting surface, the moisture absorbing surface absorbs moisture from the space. It is characterized by taking.

It is explanatory drawing which shows the whole structure of the dehumidification pack which concerns on embodiment of this invention, (a) is the perspective view seen from the front side, (b) is the perspective view seen from the bottom face side. It is explanatory drawing which shows the modification of the dehumidification pack which concerns on embodiment of this invention, and is the perspective view seen from the front side.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
The dehumidification pack A according to the embodiment of the present invention has a high humidity as shown in FIGS. 1 to 2 such as a closet, a closet, a closet, a clog box, a washbasin, a sink, a clothing storage container (clothes case), etc. It is a dehumidifying agent that removes moisture from the space S of the installation place by being placed on the placement surface P of the installation place.
Before such moisture removal is performed, the dehumidifying pack A is housed in an outer bag (not shown) in a sealed state to prevent useless moisture absorption.
More specifically, the dehumidification pack A according to the embodiment of the present invention includes a bag body 1 made of a moisture permeable waterproof sheet and a hygroscopic agent 2 enclosed in the bag body 1 as main components. Yes.

The bag body 1 is composed of a moisture permeable waterproof sheet or a moisture permeable film having minute ventilation holes (not shown) in units of several microns, and has a structure that allows moisture to pass through but does not allow liquids to pass through the minute ventilation holes. .
Specific examples of the moisture permeable waterproof sheet and the moisture permeable film include a microporous film produced by stretching polyethylene, polypropylene, and the like containing calcium carbonate, DuPont Tyvek (registered trademark), and Tokuyama NF. It is preferable to use a sheet or the like.
Furthermore, the bag body 1 is formed in a three-dimensional shape having a plurality (two or more) of plane portions 10.
Examples of the three-dimensional shape include a cube, a rectangular parallelepiped, a tetrahedron, a polyhedron including a prism, a pyramid, a truncated pyramid, a cylindrical body, or a shape similar to these.
Among these, a polyhedron surrounded by four or more plane portions 10 is preferable. The polyhedron includes a quasi-regular polyhedron composed of two or more kinds of regular polygons and a semi-regular polyhedron other than the regular polyhedron among convex uniform polyhedrons. Specifically, it is preferable to form the bag body 1 into a polyhedron such as a tetrahedron or a hexahedron.
Furthermore, the bag body 1 becomes a bottom surface 10a in contact with the placement surface P of the installation place in the use state, and the other of the plurality of flat parts 10 faces the space S of the installation place. It is comprised so that it may become the moisture absorption surface 10b.
Further, it is preferable to continuously form an extension portion 11 a facing the placement surface P on at least one side of the plurality of flat surface portions 10.

In the case shown in FIGS. 1A and 1B as a specific example of the bag body 1, it is formed in a tetrahedron (a regular tetrahedron in the illustrated example).
Specifically, the first cylindrical sheet 11 is used as a moisture permeable waterproof sheet or a moisture permeable film. The first cylindrical sheet 11 is sealed at both ends in the axial direction with a predetermined interval with a first horizontal seal portion that becomes a pair of extension portions 11a, so that the first inside the bag body 1 The accommodating part 21 is formed. The extension part (first lateral seal part) 11a is formed in a strip shape in a direction intersecting with the axial direction of the first cylindrical sheet 11 and relatively orthogonal to each other. Superimpose and bond.
For this reason, the inside of the bag body 1 (the first accommodating portion 21) has a filling space in which the moisture absorbent 2 described later is accommodated and a water accommodation space in which moisture absorbed by the moisture absorbent 2 is accommodated. Yes.
With such a configuration, a tetrahedron (regular tetrahedron) container such as Tetra Pak (registered trademark) is created as the bag body 1.
In the illustrated example, the first cylindrical sheet 11 is used in which both ends in the width direction of the sheet main body are sealed by the vertical seal portions 11b.

As another modification, as shown in FIG. 2, the bag 1 can be changed to a hexahedron (regular hexahedron in the illustrated example).
In the example of illustration, the 2nd cylindrical sheet | seat 12 of a cross-sectional rectangle (The rectangle including a rectangle and a square including a square is a right angle) is used as a moisture-permeable waterproof sheet or a moisture-permeable film. By sealing both axial ends of the second cylindrical sheet 12 with a predetermined interval with a pair of second lateral seal portions 12a, the second accommodating portion 22 is provided inside the bag body 1. It is formed. The second horizontal seal portions 12a are each formed in a strip shape in a direction intersecting the axial direction of the second cylindrical sheet 12, and both end portions in the axial direction are overlapped and bonded.
For this reason, the inside of the bag body 1 (second housing portion 22) has a filling space in which the moisture absorbent 2 described later is housed and a water housing space in which the moisture absorbed by the moisture absorbent 2 is housed. Yes.
With such a configuration, substantially triangular flaps 13 are formed at both ends of the pair of second horizontal seal portions 12a, and the flaps 13 are adhered to the surface of the bag body 1 to form a brick (hexahedral or regular hexahedron). A container is created.
In the illustrated example, the second cylindrical sheet 12 is used without a vertical seal.
Although not shown as a modification of the bag body 1, the first cylindrical sheet 11 shown in FIGS. 1A and 1B can be changed to one without a vertical seal, or the second cylinder shown in FIG. It is also possible to change the cylindrical sheet 12 to one having a vertical seal.

As the hygroscopic agent 2 enclosed in the bag body 1, it is preferable to use a deliquescent substance in which the crystalline solid absorbs water vapor or moisture which becomes moisture and dissolves. Specific examples of the deliquescent material include calcium chloride, magnesium chloride, lithium chloride, lithium bromide, potassium acetate, sodium phosphate, and sodium ultraphosphate. Of these, calcium chloride and magnesium chloride are preferred from the viewpoint of moisture absorption capacity and price. It is also possible to use one kind or a mixture of two or more kinds.
When a deliquescent material such as calcium chloride is used as the hygroscopic agent 2, the deliquescent liquid that has been liquefied along with moisture absorption may leak from the bag body 1 and contaminate the futon or clothing.
Therefore, it is necessary to mix the deliquescent substance with a thickener (gelling agent), so that the deliquescent liquid is gelled and the fluidity is decreased to prevent the deliquescent liquid from separating.
That is, as the hygroscopic agent 2, it is preferable to use a material in which a granular crystalline solid is gelled with moisture absorption.
Examples of the thickener (gelling agent) include pregelatinized starch (pregelatinized starch), sodium polyacrylate, polyvinyl alcohol, polyacrylamide, methylcellulose, and guar gum.

As a specific example of the hygroscopic agent 2, it is preferable to blend 30 to 70% by weight of pregelatinized starch with respect to 100% by weight of calcium chloride.
If the blending amount of the pregelatinized starch with respect to 100% by weight of calcium chloride is less than 30% by weight, the deliquescent solution begins to separate, which is not preferable.
If the blending amount of the alpha starch is increased more than necessary, the blending ratio of the main calcium chloride blending amount is reduced accordingly. If the blended amount of pregelatinized starch with respect to 100% by weight of calcium chloride exceeds 70% by weight, the intended hygroscopic function cannot be obtained.
Therefore, in a limited volume in the bag body 1, starch that has been cross-linked in addition to pregelatinization so that water separation performance can be exhibited without taking up a volume with high density pregelatinized starch and without blending in a large amount. Is preferably used.
Furthermore, deliquescent substances such as calcium chloride tend to gradually decrease the moisture absorption rate due to a decrease in concentration accompanying moisture absorption. However, when the pregelatinized starch absorbs calcium chloride and the pregelatinized starch expands, the distance between the moisture permeable waterproof sheet of the bag body 1 and the calcium chloride is close, and there is an effect of suppressing a decrease in moisture absorption rate. .

On the other hand, it is preferable that the bag body 1 is provided with means 3 for visualizing the state of the moisture absorbent 2 as the contents from the outside.
In the case shown in FIG. 1A as a specific example of the visualizing means 3, a belt-like window 31 or a plurality of windows 32 made of a transparent or translucent sheet or film is provided on a part of the bag 1, and colored alpha. When the starch starch expands with moisture absorption, the moisture absorption state can be visually confirmed through the belt-like window 31 and the plurality of windows 32. As a result, it is convenient because the user can easily know the life of the moisture absorbent 2.
Although not shown in the drawings as other examples, the shape and arrangement of the belt-like window 31 and the plurality of windows 32 can be changed to those other than the example shown in the drawing, almost the entire bag 1 can be made transparent or translucent, It is also possible to provide the visualizing means 3 also in what is shown in FIG. 2, the visualizing means 3 may be configured with a structure different from the illustrated example, or the bag body 1 may be configured without the visualizing means 3.

And the result of having experimented about the dehumidification function of the dehumidification pack A which concerns on embodiment of this invention is demonstrated.
In addition to the tetra-shaped (tetrahedral) dehumidification pack A shown in FIGS. 1A and 1B, a sheet-type dehumidifier and a tank-type dehumidifier were prepared, and a moisture absorption test was performed under the same conditions. . The sheet-type dehumidifying agent is as described in JP-A-05-068843. The tank-type dehumidifying agent has a conventionally well-known structure in which a hygroscopic agent is stored in a tank-like container.
In the moisture absorption test, the total capacity of the moisture absorbents accommodated in the dehumidification pack A, the sheet type dehumidifier, and the tank type dehumidifier is set to be substantially the same.
Furthermore, in accordance with JIS S3106-1994 7.8, the elapsed time until each amount of moisture absorption reaches the target value (50 mL) is measured in a temperature and humidity environment (temperature 25 ° C. × humidity 80%) assuming the use environment. A moisture absorption test was performed.
As a result of the moisture absorption test, the 50 mL arrival speed in the tetra-shaped dehumidification pack A is about 1.5 times faster than the 50 mL arrival speed in the sheet-type dehumidifier, and about 2. It has been demonstrated to be 5 to 2.6 times faster.

By the way, the enclosed amount of the hygroscopic agent 2 with respect to the internal volume of the bag body 1 (capacities of the first accommodating portion 21 and the second accommodating portion 22) is set in accordance with the temperature / humidity of the installation location and the hygroscopic rate by the hygroscopic agent 2. Is done.
The reason for this is that when the moisture absorbent 2 with a high moisture absorption rate is used in a particularly humid or hot and humid environment, the moisture absorbed by the moisture absorbent 2 fills the water storage space in a short period of time. After that, it becomes impossible to absorb moisture. In particular, the humid environment includes places such as the sink and under the sink, and the hot and humid environment is a hot and humid area such as Hong Kong.
Especially when used in a humid environment or a hot and humid environment, the amount of moisture absorbent 2 enclosed is greater than when used in a closet, closet, closet, clog box, clothing storage container (clothing case), etc. in Japan. Therefore, it is necessary to change the volume ratio between the water storage space and the filling space of the hygroscopic agent 2 so as to reduce the amount.
Therefore, it is preferable to set the volume of the water storage space to be a predetermined multiple of the volume of the filling space of the moisture absorbent 2.

As a specific example of the enclosed amount of the hygroscopic agent 2, the bag body 1 has a tetra shape (regular tetrahedron) shown in FIGS. 1 (a) and 1 (b), and the hygroscopic agent 2 is mainly composed of a deliquescent substance (calcium chloride). A case will be described.
In Japan, the maximum moisture absorption of household dehumidifiers that use calcium chloride or the like for dehumidification in relatively small spaces such as close-in and chests of ordinary households is set at a standard temperature of 25 ° C and a standard humidity of 80% according to JIS. Has been.
In this standard environment (temperature is 25 ° C. and humidity is 80%), the volume of the water storage space is set to about twice the volume of the filling space. That is, the volume ratio between the water storage space and the filling space is set to about 2: 1.
One side with 7cm in bag 1 tetra shape, when the internal volume of the bag body 1 is about 40.4 cm ³ is about the volume of the water containing space 26.93Cm ^3, about 13.46Cm ³ the volume of the filling space To do. This corresponds to about 14.6 g in terms of filling amount of deliquescent material (calcium chloride).
On the other hand, when used in a particularly humid place such as around a washbasin or under a sink, or in a hot and humid area such as Hong Kong, the water storage space is approximately 2.2 times the volume of the filling space. , Preferably about 2.5 times or more.
When the side of the tetra-shaped bag body 1 is 7 cm and the inner volume of the bag body 1 is about 40.4 cm ³ , the volume of the water storage space is about 27.8 cm ³ or more, preferably about 28.9 cm ³ or more, The volume of the filling space is about 12.6 cm ³ , preferably about 11.5 cm ³ . This corresponds to about 13.0 g, preferably about 11.7 cm ³ , of a deliquescent material (calcium chloride).

According to the dehumidification pack A according to the embodiment of the present invention, any one of the plurality of plane portions 10 of the bag body 1 formed in a three-dimensional shape with respect to the placement surface P of the installation place in the use state. The bottom surface 10a is placed, and the bottom surface 10a is brought into contact with the placement surface P. Thereby, the moisture absorption surface 10b used as the other plane part 10 absorbs moisture toward the space S of an installation location, and dehumidification of an installation location is performed.
Furthermore, even if the bag body 1 rolls, only one of the plurality of flat portions 10 becomes the bottom surface 10a, and the other moisture absorption surface 10b does not come into contact with the placement surface P, and the moisture absorption area does not decrease.
Therefore, the moisture absorption area can be increased with a simple structure.
As a result, compared with the conventional sheet-type dehumidifying agent, the moisture absorption speed is increased, so that the humid environment can be dehumidified in a short time, and the dehumidifying function can be improved. In addition, since the dehumidifying function does not decrease due to the rolling of the bag body 1, it is not necessary to consider the posture, and the usability is good.
Furthermore, compared with the conventional sheet-type dehumidifying agent, the overall size is reduced and the exclusive space is reduced, so that it can be placed anywhere such as a relatively small installation place. Further improvement of the dehumidifying function can be achieved by placing a number of dehumidifying packs A at an installation place where one sheet type dehumidifying agent is placed.

In particular, the bag body 1 is preferably formed in a polyhedron surrounded by four or more polygons as the plurality of plane portions 10.
In this case, in the polyhedral bag body 1, one of the four or more polygonal planes 10 is the bottom surface 10a, and the other three or more planes 10 are the moisture absorption surface 10b.
Therefore, the number of hygroscopic surfaces 10b arranged in three dimensions with respect to the placement surface P can be increased to three or more.
As a result, the moisture absorption area increases with an increase in the moisture absorption surface 10b as compared with the conventional sheet type dehumidifier, so that the moisture absorption rate can be increased and the dehumidification function can be further improved.

Furthermore, it is preferable to form the bag body 1 into a tetrahedron (a regular tetrahedron in the illustrated example) shown in FIGS. 1A and 1B or a hexahedron shown in FIG. 2 (a regular hexahedron in the illustrated example).
When the bag body 1 is a tetrahedron, one of the four flat portions 10 serves as the bottom surface 10a, and the other three flat portions 10 serve as the hygroscopic surface 10b.
When the bag body 1 is a hexahedron, one of the six plane portions 10 serves as the bottom surface 10a, and the other five plane portions 10 serve as the moisture absorption surface 10b.
Therefore, the bag body 1 can be easily manufactured using a conventionally known manufacturing apparatus.
As a result, the bag body 1 can be easily mass-produced and the cost can be reduced.

In addition, it is preferable to continuously form an extension portion 11 a facing the placement surface P on at least one side of the plurality of plane portions 10.
In this case, the bottom surface 10a is continuous with the bottom surface 10a by placing any one bottom surface 10a among the plurality of planar portions 10 of the bag body 1 formed in a three-dimensional shape with respect to the mounting surface P at the installation location in use. The extending portion 11a that contacts is also in contact with the placement surface P.
For this reason, the installation area of the bag body 1 with respect to the mounting surface P is increased by the extension portion 11a, and at the same time, the frictional resistance with the mounting surface P is increased.
Therefore, it is possible to suppress rolling and positional deviation of the placed bag body 1.
As a result, the posture of the placed bag body 1 is more stable, and the dehumidifying function can be further improved.

Furthermore, it is preferable that the hygroscopic agent 2 is made of a material that gels with moisture absorption.
In this case, the hygroscopic agent 2 in the bag body 1 absorbs moisture, so that the form of the hygroscopic agent 2 changes to a gel and does not separate from the hygroscopic agent 2.
Therefore, it is possible to prevent the liquid from leaking due to the moisture absorption of the moisture absorbent 2.
As a result, since it does not get dirty with the leaked liquid, it can be used safely in various installation locations. In addition to this, after the hygroscopic agent 2 has completed moisture absorption, the hygroscopic agent 2 can be discarded as it is without taking out the hygroscopic agent 2 from the bag body 1, and further improvement in usability can be achieved.
Further, by checking whether or not the shape of the hygroscopic agent 2 is gelled, the lifetime of the hygroscopic agent 2 can be estimated, and anyone can easily know the replacement time of the hygroscopic agent 2 and is excellent in usability.

Furthermore, the inside of the bag body 1 has a filling space for the moisture absorbent 2 and a water accommodation space for accommodating the moisture absorbed by the moisture absorbent 2, and the volume of the water accommodation space is filled with the moisture absorbent 2. It is preferable to set so as to be a predetermined multiple of the volume.
Even when the dehumidifying pack A is installed in a particularly humid place such as around a sink or under a sink, or in a hot and humid area such as Hong Kong, the volume of the water storage space can be reduced by using a moisture absorbent ( By setting the volume of the filling space of calcium chloride 2 to about 2.2 times or more (preferably about 2.5 times or more), the moisture absorbed by the moisture absorbent 2 fills the water storage space in a short period of time. There is nothing.
Therefore, moisture absorption can be continued for a predetermined period even when used in a particularly humid place or a hot and humid area.
As a result, it can be adjusted to the temperature and humidity to be used, and is excellent in usability.

  In the embodiment shown in the previous embodiment, only the case of tetrahedron and hexahedron is shown as the three-dimensional shape of the bag body 1, but the three-dimensional shape of the bag body 1 is not limited to this. Further, it may be a polyhedron including a quasi-regular polyhedron such as a pyramid, a truncated pyramid, an octahedron, a dodecahedron, and an icosahedron, or a semi-regular polyhedron.

A Dehumidification pack 1 Bag 10 Flat portion 10a Bottom surface 10b Hygroscopic surface 11a Extension 2 Hygroscopic agent P Mounting surface S Space

In order to solve such problems, the dehumidifying pack according to the present invention is placed on a mounting surface in a humid installation place including a closet, a closet, a closet, a clog box, a washbasin, a sink, and a clothing storage container. Te, a dehumidification pack that collected moisture from the space of the installation place, comprising a bag body formed tetrahedrally with moisture permeable waterproof sheet, and a moisture absorbent that is enclosed inside the bag, the bag body, and four flat portions, and the extension part which is continuously formed on at least one side of the four flat portions, are formed on the three-dimensional shape having, one of the four flat portions the becomes the bottom surface in contact with the mounting surface of the installation site, before Symbol operate with the base the extension portion is placed in the mounting surface is in contact with the placement surface, other three flat portions the exception of the bottom surface a moisture absorption surface and the space facing the connection portions absorbs moisture from the space Characterized in that that.

Claims (6)

A bag made of a moisture-permeable waterproof sheet;
A hygroscopic agent enclosed in the bag body,
The bag body is formed in a three-dimensional shape having a plurality of plane portions, and any one of the plurality of plane portions serves as a bottom surface in contact with the placement surface of the installation location, and the other of the plurality of plane portions is the installation location. A dehumidifying pack characterized by a moisture absorbing surface facing the space.   The dehumidifying pack according to claim 1, wherein the bag is formed as a polyhedron surrounded by four or more polygons as the plurality of flat portions.   The dehumidifying pack according to claim 2, wherein the bag is formed into a tetrahedron or a hexahedron.   The dehumidification pack according to claim 2 or 3, wherein an extension portion facing the mounting surface is continuously formed on at least one side of the plurality of flat portions.   The dehumidifying pack according to claim 1, 2 or 3, wherein the moisture absorbent is made of a material that gels with moisture absorption.   The inside of the bag body has a filling space for the hygroscopic agent and a water containing space for containing moisture absorbed by the hygroscopic agent, and the volume of the water containing space is the volume of the filling space for the hygroscopic agent. The dehumidifying pack according to claim 1, 2 or 3, wherein the dehumidifying pack is set so as to be a predetermined multiple of.

Images