JP3474268B2 - Method of manufacturing dehumidifier container - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a household dehumidifying agent container which is exclusively used in a closet, a closet or the like. The present invention relates to a method of manufacturing a dehumidifying agent container capable of refilling.

[0002]

2. Description of the Related Art In Japan, dehumidifiers are preferred and used even at home because the climate is humid in Japan.
Calcium chloride is generally used as a dehumidifying agent, but when it absorbs moisture, it turns into a liquid and contaminates the surroundings. Therefore, it is used as a commercial product in a container. It is shown.

According to this, for example, there is a container body 1 made of hard synthetic resin that is pressure-molded, a predetermined amount of dehumidifying agent (calcium chloride) A is stored in the container body 1, and the opening is impermeable to water. Covered with a moisture-permeable film 2. Then, until actually used, the moisture-permeable film 2 is covered with a barrier sheet 3 made of, for example, an aluminum foil so as not to absorb moisture. Although not shown, usually, the container body 1 is detachably covered with a lid for protecting the moisture-permeable film 2 from external impact during use.

In this type of dehumidifying agent container, as dehumidifying proceeds, water is accumulated in the container body 1, so that the dehumidifying ability is extremely reduced. Even if it is desired to refill only the dehumidifying agent, the dehumidifying agent is generally sold in stores. (Calcium chloride) is rarely sold as a single item, and even if you get the dehumidifying agent, you have to peel off the moisture permeable film 2 and refill it, so there is a risk of water leakage from the peeled off part. Occurs. Therefore, when the life of the container is reached, the user is obliged to discard the entire container body 1.

However, since the container body 1 is formed to be thick so as not to be easily crushed by a storage item such as a closet, a large amount of resin is used, and for example, for waste disposal in a public organization. This is burdensome and not preferable.

[0006]

A conventional example in which the dehumidifying agent can be refilled so that the container body can be repeatedly used is shown in FIG. 6. According to this, the container body 1 can be attached to and detached from the container body 1. A possible inner bag container 4 is provided, and the dehumidifying agent A can be exchanged together with the inner bag container 4.

The inner bag container 4 is made of a thin synthetic resin film with a small amount of resin used. In this case, a bag-shaped partition 5 made of non-woven fabric is provided in the inner bag container 4, and the dehumidifying agent A is It is designed to be stored in the partition 5.

The peripheral edges of the inner bag container 4 and the partition 5 are held by the frame 6, and after storing the dehumidifying agent in the partition 5,
The moisture permeable film 2 is attached to the opening of the frame 6, the barrier sheet 3 is further covered thereon, and this is sold separately as a spare.

Explaining how to use it, initially, a container body 1 with an inner bag container 4 set therein is purchased and used, but the moisture absorption of the dehumidifying agent A progresses and the dehumidifying function is fulfilled. When it disappears, the inner bag container 4 is taken out from the container body 1 and discarded. Then, from the next time, the inner bag container 4 as a spare is set in the container body 1 and the barrier sheet 3 is peeled off for use.

Thus, after that, only the spare needs to be replaced, and therefore, the amount of resin to be discarded can be reduced as compared with the case where the container body 1 itself is replaced. Further, even if the inner bag container 4 is discarded, the inner bag container 4 can be easily crushed after discarding the dehumidifying liquid in the inner bag container 4, so that the discard volume can be reduced.

As described above, this dehumidifying agent container is purchased separately when the inner bag container 4 is set in the container body 1 and as a spare inner bag container 4 to be used next time. However, in manufacturing the dehumidifying agent container that is initially purchased, conventionally, the container body 1 and the inner bag container 4 are separately formed by pressure molding, and they are combined. Increased, there was a difficulty in terms of productivity.

The present invention has been made in view of such circumstances, and an object thereof is to manufacture a dehumidifying agent container in which a container body and an inner bag container which are separable from each other can be manufactured in the same molding process. To provide a method.

[0013]

To achieve the above object, the present invention comprises a container body made of a hard synthetic resin, and an inner bag container made of a thin synthetic resin film and a non-woven fabric in the container body. In the method for producing a dehumidifying agent container in which a bag-shaped partition is sequentially provided and a predetermined dehumidifying agent is stored in the partition, and the opening surface thereof is covered with a moisture permeable film, the inner bag As the material of the container, a two-layer film having a resin film having a heat-sealing property on the side facing the container body and a resin film having a heat-sealing property on the surface side facing the partition is used. The bag container and the inner partition are pressure-molded in the same mold, and the container body and the inner bag container are separable, and the inner bag container and the inner partition are located at their peripheral portions. It is characterized in that it has to be welded.

A resin film having a heat-sealing property may be used for the inner bag container, and a synthetic resin plate having no heat-sealing property may be used for the container body.

Further, after laminating the synthetic resin plate forming the container body, the resin film forming the inner bag container and the non-woven fabric forming the partition, and hot pressing the portion corresponding to the outer peripheral edge of the container, The inner bag container and the container are housed in a pressure-molding die, and the non-woven fabric is formed into a bag shape by the plug of the die to form the partition, and the resin film and the synthetic resin plate are pressure-molded. It is preferable to form a body. Furthermore, the heat-sealing property of the synthetic resin film of the inner bag container may be used to weld the moisture permeable film together with the partition.

[0016]

According to the above construction, one of the joint surfaces of the container body and the inner bag container is formed of a resin having no heat-sealing property (heat-welding property). Even if both are molded at the same time, the container body and the inner bag container are formed to be separable.

Even if the moisture permeable film is attached, since the heat-sealing property of the inner bag container is utilized, the moisture permeable film can be attached without the need for a separate adhesive or the like.

[0018]

Embodiments of the present invention will be described below with reference to FIGS. FIG. 1 shows a cross-sectional view of the dehumidifying agent container 10 according to this embodiment in a state where each part is separated. According to this, the dehumidifying agent container 10 is
A container body 11 as an outer container, an inner bag container 21 detachably housed in the container body 11, and an inner bag container 21.
A partition 31 made of a non-woven fabric provided inside, and a moisture-permeable film 41 attached to the upper surface of this partition 31.
And a barrier sheet 51 thereof.

The container body 11 is made of a relatively hard and thick synthetic resin in order to protect the inner bag container 21 and the like from external force, and polypropylene is used in this embodiment. A flange 11a is formed around the upper opening of the container body 11.

Although the inner bag container 21 is made of a thin synthetic resin film in consideration of environmental problems, in this case, as shown in the enlarged sectional view of FIG. 2, the surface side facing the container body 11 is heated. A resin film 211 having no sealing property (heat-welding property) and a surface opposite to the partition 31 on the opposite side are formed of a two-layer film of a resin film 212 having a heat-sealing property. Examples of the resin film 211 having no heat-sealing property include nylon and polyester resins. Further, for the resin film 212 having heat sealability, for example, polyethylene resin is used.

The partition 31 is made of a non-woven fabric having a relatively coarse mesh and not having a heat-sealing property, and is formed in a bag shape having a shallower bottom than the inner bag container 21.
A predetermined amount of calcium chloride) A is filled.

The moisture permeable film 41 is made of, for example, a water impermeable material having polyethylene as a base material, and the barrier sheet 51 is made of aluminum foil or the like.

In order to manufacture this dehumidifying agent container 10, FIG.
As shown in FIG. 1, first, the synthetic resin plate as the material of the container body 11, the two-layer film of the inner bag container 21, and the non-woven fabric forming the partition 31 are overlapped, and the flange 11a of the container body 11 is attached. Hot press the corresponding part. When stacking these, the two-layer film of the inner bag container 21 is a resin film 211 having no heat sealability.
The side is arranged so as to face the container body 11.

Next, as shown in FIG. 4, it is placed in a pressure-pressure molding die 60 having a plug 61 and pressure-molded. At the time of this molding, the plug 61 forms the non-woven fabric as a bag-shaped partition 31 having a shallow bottom. As the non-woven fabric to be used, it is preferable that a mesh capable of holding the dehumidifying agent A is secured even after the partition 31 is formed.

Further, the container body 11 and the inner bag container 21 are molded into a predetermined container shape along the inner surface of the cavity thereof by the compressed air supplied through the nonwoven fabric. in this way,
The container body 11 and the inner bag container 21 are the same compressed air molding die 60.
Although they are integrally molded in the inside, they are separable from each other because the resin film 211 having no heat sealability exists between them.

After removing from the mold 60, the partition 31
A predetermined amount of dehumidifying agent A, for example, calcium chloride is filled in the inside, and the upper opening is sealed with a moisture permeable film 41. In this case, the peripheral edge of the moisture permeable film 41 is overlaid on the non-woven fabric of the partition 31, and that portion is heated to heat the resin film 21 of the inner bag container 21.
By melting 2 the inner bag container 21 and the partition 3
1 and the moisture permeable film 41 are integrally joined at their peripheral portions. Thereafter, the moisture permeable film 41 is covered with the barrier sheet 51, and the peripheral edge thereof is hermetically sealed with, for example, an adhesive or heat sealing.

In use, the barrier sheet 51 is peeled off, and the dehumidifying agent container 10 is installed in a predetermined place such as in a closet. As a result, the surrounding moisture is absorbed by the calcium chloride through the moisture permeable film 41. In this case, the calcium chloride is retained at a predetermined height position from the bottom of the inner bag container 21 by the partition 31. Since the bag container 21 is not submerged in the water stored at the bottom of the bag container 21, the moisture absorption capacity is increased by about 40 to 50%.

When the moisture absorption capacity is lost,
The inner bag container 21 is extracted from the container body 11 and discarded, and a new inner bag container 21 as a spare is placed in the container body 11.
Will be set.

In the above-mentioned embodiment, the inner bag container 21 has two
Although a resin film having no heat-sealing property is arranged on the container body 11 side as a layer film, the container body 11 itself may be formed of a resin having no heat-sealing property. The bag container 21 may be formed only of a resin film having heat sealability.

Further, in manufacturing a spare container for refilling, when the container body 11 is formed of a resin having a mechanical strength even when the wall thickness is thin, the compressed air forming metal shown in FIG. 4 is used. By using the mold 60, both the inner bag container 21 as a spare and the partition 31 can be pressure-molded at the same time.

According to this, the inner bag container 21 is the container body 1
Although it is formed to have substantially the same size as 1, the inner bag container 21 is made of a thin resin film, so that it can be pushed into the container body 11 even if it is slightly deformed.

However, when the thickness of the container body 11 is large, the spare container is pressure-molded by another pressure-molding die. In any case, according to the present invention, the inner bag container 21 is used. The inner partition 31 and the inner partition 31 can be pressure-molded at the same time in the same mold, and even when the moisture-permeable film is attached after filling the dehumidifying agent, the inner bag container 21 has a heat-sealing property. A moisture permeable film can be attached by utilizing the heat sealability of the resin.

[0033]

As described above, according to the present invention,
The dehumidifying agent container having the separable inner bag container for refilling in the container body can be molded simultaneously in the same compressed air molding die, and the productivity can be improved by reducing the number of steps.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an example of a dehumidifying agent container manufactured according to the present invention with each part separated.

FIG. 2 is an enlarged cross-sectional view of a main part of FIG.

FIG. 3 is a sectional view for explaining a part of the manufacturing process according to the present invention.

FIG. 4 is a sectional view of the inside of a mold showing a compressed air molding state.

FIG. 5 is a cross-sectional view showing a conventional dehumidifying agent container.

FIG. 6 is a cross-sectional view showing another conventional example.

[Explanation of symbols]

10 Dehumidifying agent container 11 container body 21 Inner bag container 211 Resin film without heat sealability 212 Resin film with heat sealability 31 Partition 41 Breathable film 51 Barrier Seat A dehumidifier

Claims (4)

(57) [Claims] 1. A container main body made of a hard synthetic resin, an inner bag container made of a thin synthetic resin film and a bag-shaped partition made of non-woven fabric are sequentially provided in the container body, and the partition is made of the same. After storing a predetermined dehumidifying agent in the inside, in the method of manufacturing a dehumidifying agent container, the opening surface of which is covered with a moisture-permeable film, in the inner bag container material, the surface side facing the container body is heat-sealed. -Free resin film, using a two-layer film consisting of a resin film having a heat-sealing property on the side facing the partition, the container body, the inner bag container and the partition are pressure molded in the same mold. However, the container body and the inner bag container are separable, and the inner bag container and the inner partition of the dehumidifying agent container are welded at their peripheral portions. Production method. 2. A container main body made of a hard synthetic resin, an inner bag container made of a thin synthetic resin film and a bag-shaped partition made of non-woven fabric are sequentially provided in the container body, and the partition is made of the same. After storing a predetermined dehumidifying agent inside, in the method for producing a dehumidifying agent container, the opening surface of which is covered with a moisture-permeable film, in the inner bag container, a resin film having heat sealability is used, A synthetic resin plate without heat sealability is used for the main body, and the container body, the inner bag container and the partition are pressure-molded in the same mold, and the container body and the inner bag container can be separated. The method for producing a dehumidifying agent container, wherein the inner bag container and the partition are welded at their peripheral portions. 3. A synthetic resin plate forming the container body, a resin film forming the inner bag container, and a non-woven fabric forming the partition are laminated, and a portion corresponding to the outer peripheral edge of the container is hot-pressed, The inner bag container and the container are housed in a pressure-molding die, and the non-woven fabric is formed into a bag shape by the plug of the die to form the partition, and the resin film and the synthetic resin plate are pressure-molded. The method for manufacturing a dehumidifying agent container according to claim 1 or 2, further comprising forming a main body. 4. The heat-sealing property of the synthetic resin film of the inner bag container is utilized to weld the moisture permeable film together with the partition wall. Method for manufacturing dehumidifying agent container.