JPH0231143Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a simple moisture-proof and insect-proof bag that effectively exhibits both moisture-proof and insect-proof effects.

BACKGROUND ART As a moisture-proof and insect-proof bag that aims to exhibit both a moisture-proof effect and an insect-proof effect, for example, the bag shown in FIG. 2 is commercially available.

That is, one side is composed of a breathable/water-impermeable film (hereinafter abbreviated as a breathable film) a, and the other side is composed of a non-breathable/water-impermeable film (hereinafter abbreviated as a non-breathable film) b. A mixture of a moisture absorbent (calcium chloride) (c) and an insect repellent (paradichlorobenzene) (d) is stored and sealed in a plastic bag.

However, the water absorption rate of calcium chloride (hygroscopic agent) and the volatilization rate of paradichlorobenzene (insect repellent) differ slightly depending on the environmental conditions of the place where it is used and the structure of the product, but normally calcium chloride's water absorption rate The speed is faster. Therefore, when a mixture of these is used, the following problems occur.

Problems to be Solved by the Invention When observing the state of the conventional moisture-proof and insect-proof bag shown in Figure 2 when it is used, calcium chloride first interacts with water to form calcium chloride hydrate salt (solidification), and finally chloride. It becomes a calcium aqueous solution. During this water absorption process, paradichlorobenzene present close to the surface of the bag sublimes, but none of the paradichlorobenzene present inside the mixture sublimes. Further, when the calcium chloride aqueous solution is near the final stage, a portion of paradichlorobenzene sinks into water and does not sublimate at all. On the other hand, the water absorption rate of calcium chloride is also inhibited by paradichlorobenzene and becomes slow.

That is, to mix moisture absorbent and insect repellent,
The efficacy of each drug is significantly reduced, and in particular, the insect repellent effect is hardly exhibited. Furthermore, due to the mixed state, the moisture absorption state and sublimation state of the moisture absorbent and insect repellent cannot be confirmed.

Furthermore, crystals are used as moisture absorbents in order to increase their moisture absorption effect, but the crystals are hard and there is a high risk of damaging the storage bag during the distribution process. Furthermore, in the case of calcium chloride, it solidifies and expands during its water absorption process, so there is a risk that the pressure may cause perforations in the storage bag and the calcium chloride aqueous solution may leak.

Therefore, the purpose of the present invention is to provide a moisture and insect repellent that does not have the above-mentioned drawbacks, can effectively exhibit the effects of both a moisture absorbent and an insect repellent without canceling each other out, and in which the end points of each effect are almost the same. Our goal is to provide bags. Furthermore, the present invention can check the moisture absorption state and sublimation state of the moisture absorbent and insect repellent through the outer bag,
Another object of the present invention is to provide a moisture-proof and insect-proof bag whose end of use can be determined from the outside, or a moisture-proof and insect-proof bag whose perforation and leakage of internal solution can be prevented.

Means and Effects for Solving the Problems The moisture-proof and insect-proof bag according to the present invention basically stores a moisture absorbent and an insect repellent separately in an outer bag. That is, the moisture absorbent is housed in an inner bag whose entire side or a part thereof is made of a breathable film, and on the other hand, the whole of one side or an appropriate part of each circumference is made of a breathable film, and the other side is made of a breathable film. The insect repellent is contained in an outer bag made of a non-breathable at least partially transparent film, or in a breathable inner bag that is separate from or integrally integrated with the inner bag. The inner bag is stored in the outer bag in such a position that the breathable film of the inner bag faces the breathable film of the outer bag and the inner bag is visible through the non-breathable film of the outer bag. By doing so,
The effects of the moisture absorbent and insect repellent can be exhibited individually without canceling each other out, and the end points of each effect can be made almost at the same time.
The moisture absorption state and sublimation state can be visually confirmed from the outside. Furthermore, since the insect repellent is located near or around the inner bag in which the moisture absorbent is stored, the insect repellent plays the role of absorbing shock against pressure etc. during the distribution process.

Embodiments Hereinafter, the present invention will be explained in detail by explaining embodiments shown in the accompanying drawings.

FIG. 1 shows an embodiment of the moisture-proof and insect-proof bag of the present invention. The outer bag 1 is composed of a side wall 3 made of a breathable film, a side wall 4 made of a non-breathable film, and a bottom member 5 folded in half. This bag has a structure called a so-called standing pouch type bag. The side walls 3 and 4 and the area around where these side walls 3 and 4 contact the bottom member 5 are sealed (the sealed portion is indicated by the symbol S), and the outer bag 1 is sealed.
is molded and sealed.

On the other hand, all or part of the sides of the inner bag 2 are made of a breathable film.

In the case of the moisture-proof and insect-proof bag shown in Fig. 1, the insect repellent 7 is housed in the outer bag 1, the inner bag 2 is sealed with the moisture absorbent 6 housed therein, and the breathable film is the outer bag. The outer bag 1 is housed in the outer bag 1 so as to face the side wall 3 made of the air-permeable film 1, and the outer bag 1 is hermetically sealed in this state. The inner bag 2 is visible through the side wall 4 of the outer bag, which is made of a transparent non-breathable film.

The moisture-proof and insect-proof bag configured as described above is kept airtight before use by, for example, pasting a non-breathable film on the side wall 3 made of a breathable film of the outer bag 1, and when used, the bag is kept airtight. By peeling off the film, the moisture absorption by the moisture absorbent 6 and the insect repellent 7 can be achieved through the breathable film of the outer bag 1 and the breathable film of the inner bag 2. Each insect repellent effect can be effectively demonstrated.

As the above-mentioned air-permeable material, various materials can be used as long as they are water-impermeable and air-permeable. For example, a porous plastic film having numerous micropores with a pore diameter of 0.02 to 0.4 μm is preferably used. Such porous plastic films can be formed from various materials such as polypropylene, high-density polyethylene, polyester, etc., and the pore size of the micropores is 0.02
~0.4μ, and the porosity is 20% or more, preferably 30% or more. In addition, as a breathable material,
In addition to a single film that is water-impermeable and breathable, it may also be a laminated material in which a resin layer with heat-sealing properties is provided on the front surface or a portion of the film within a range that does not impede breathability. It may also be a non-woven fabric made of synthetic resin fibers made from polyethylene, nylon, etc., with only one side (outer surface) coated with polypropylene or the like.

On the other hand, as the material for the side wall 4 and the bottom member 5, any material can be used as long as it has these properties, such as polyethylene. , a synthetic resin film such as polypropylene, or a laminated film of various synthetic resins can be used.

The shape of the outer bag is not limited to a standing pouch type as shown in Fig. 1, but may also be a bag-shaped one as shown in Figs. 3 and 4, or a pouch-type as shown in Fig. 5. It may also be of a so-called gusset type.

In addition, the breathable film is 1 as shown in Figure 1.
In addition to the configuration in which only the side wall 3 is made and the other side walls 4 and the bottom member 5 are made of non-breathable films, it is also possible to have a structure in which only the bottom member or both side walls are made of breathable films. Furthermore, as shown in FIG. 6, a part of the bottom member and one side wall is made of a breathable film (indicated by symbol A), and the rest of the side wall and the other side wall are made of a non-breathable film (indicated by symbol B). Configuration: As shown in Figure 7, the lower part of both side walls is made of breathable film A, and the other parts are made of non-breathable film B. As shown in Figure 8, the upper and lower parts of both side walls are alternately made of breathable film A. Various embodiments can be adopted, such as a structure in which the breathable films A are alternately arranged on both side walls as shown in FIG. 9, and a structure in which the bottom member is also made of the breathable film A. Although the above-mentioned embodiment is related to a standing pouch type, the same embodiment as described above can be appropriately adopted for an outer bag having a shape as shown in FIGS. 3 to 5.

The shape of the inner bag 2 for storing the moisture absorbent 6 may be one in which one film is folded and sealed on three sides as shown in Fig. 10, or two films stacked one on top of the other as shown in Fig. 13. Various types are possible, such as one with four sides sealed. Regarding the material composition, as shown in Fig. 10, all sides of the inner bag 2 are made of breathable film A, and as shown in Fig. 11, most of all sides are made of breathable film A, and a part is made of breathable film A. Various aspects can be adopted, such as a configuration in which the non-breathable film B is used, or a configuration in which half of the entire side surface is made of the breathable film A and the other half is made of the non-breathable film B. .

Furthermore, as shown in FIG. 14, after overlapping the breathable film and the non-breathable film and sealing the three sides (symbol S), the moisture absorbent 6 is inserted through the remaining opening.
In addition to the normal mode in which the inner bag 2a is filled with and sealed and only the moisture absorbent 6 is stored, the inner bag 2a is divided into upper and lower halves as shown in FIG. is filled, the approximately central part is sealed, and the moisture absorbent 6 or insect repellent 7 is filled and sealed.
and insect repellent 7, or as shown in FIG. 16, the inner bag 2a is divided into left and right halves and the moisture absorbent 6 and insect repellent 7 are stored therein, as appropriate.

Next, various aspects of the inner bag containing the moisture absorbent (and/or insect repellent) and the state in which the insect repellent is stored in the outer bag are shown in FIGS. 17 to 22.

In the case of the moisture-proof and insect-proof bag shown in FIG. 17, first, an inner bag 2 composed of a breathable film A and a non-breathable film B is filled and sealed with a moisture absorbent 6 (for example, calcium chloride), and then this is sealed. It is stored in an outer bag 1 in which part of the side wall and the entire bottom member are made of breathable film A, and the other side walls are made of non-breathable film B,
Thereafter, an insect repellent 7 (for example, paradichlorobenzene) was added and the container was heat-sealed. On the other hand, in the case of the moisture-proof and insect-proof bag shown in FIG. It is sealed.

On the other hand, in the case of the moisture-proof and insect-proof bags shown in FIGS. 19 and 20, the manner in which the insect repellent is stored is different from that shown in FIGS. 17 and 18. That is, the 19th
In the case shown in the figure, the inner bag 2e filled and sealed with the insect repellent 7 is first stored in the outer bag 1, and then the moisture absorbent 6 is placed in the inner bag 2d composed of a breathable film A and a non-breathable film B. Store the filled and sealed items,
On the other hand, in the case of Fig. 20, a vertically long inner bag 2f made of breathable film A is filled with moisture absorbent 6 and sealed, and another vertically long inner bag 2g is filled with insect repellent. 7 are filled and sealed and housed in parallel in the outer bag 1, which is heat-sealed and sealed. In this way, the insect repellent 7 is placed in a separate inner bag 2.
When filling and sealing the inner bags 2e and 2g and storing them in the outer bag 1, most insect repellents do not absorb moisture and dissolve into a liquid state, so the materials for the inner bags 2e and 2g are not necessarily There is no need to use the inner bag material, that is, a film having air permeability or non-breathability, to accommodate the moisture absorbent, and any material that is breathable may be used. For example, a perforated film or net can also be used.

On the other hand, in the case of the moisture-proof and insect-proof bags shown in FIG. 21 and FIG. 8 up and down (second
The film is divided so that a part of the breathable film A is disposed in both the left and right compartments (Fig. 1) and left and right (Fig. 22), and is filled and sealed with a moisture absorbent 6 and an insect repellent 7, respectively. .

In any of the moisture-proof and insect-proof bags shown in FIGS. 17 to 22 described above, the bag is filled with a moisture-absorbing agent and/or an insect repellent so that the moisture-absorbing agent absorbs moisture and the insect repellent is effectively volatilized. The inner bag is attached to the transparent non-container of the outer bag so that the breathable film of the inner bag faces the breathable film of the side wall or bottom member of the outer bag, and the end points of the moisture absorbent and insect repellent can be visually confirmed. The inner bag is housed within the outer bag so that it can be seen through the breathable film.

In addition, when the insect repellent is used as a liquid or dissolved solution (for example, paper sulin), the insect repellent is impregnated into a fibrous, porous, etc. mat (sheet). It can be stored in the outer bag, preferably in the lower part, as it is, or it can be formed into a bellows shape to increase the effect of absorbing shock against the moisture absorbent filled in the inner bag.

In addition to the calcium chloride mentioned above, silica gel, quicklime, hygroscopic gelling agents, etc. can also be used as moisture absorbents, and insect repellents (including repellents, insecticides, etc.) include paradichlorobenzene, naphthalene, camphor. Sublimation insect repellents such as linalool,
Volatile insect repellents such as menthol, carvone, diethyl toluamide, dibutyl phthalate, and vapor sulin can be used.

In addition, in order to increase the water absorption effect of the moisture absorbent and the volatilization effect of the insect repellent, the breathable film of the inner bag that stores the moisture absorbent and/or insect repellent should have an area of 50% or more of the surface area of the inner bag. On the other hand, it is preferable that the air permeable film of the outer bag has an area of 30 to 80% of the surface area of the outer bag.

Effects of the invention As described above, the moisture-proof and insect-proof bag according to the invention has
Basically, the moisture absorbent and insect repellent are separated and stored in an outer bag, and the breathable film in the inner bag that contains the moisture absorbent (and/or insect repellent) is the same as the breathable film in the outer bag. Since the inner bag is housed inside the outer bag in a position where it faces the outer bag and is visible through the non-breathable film of the outer bag, the efficacies of the moisture absorbent and insect repellent can be individually adjusted without canceling each other out. In addition, the end points of each effect can be set at almost the same time, and the moisture absorption state and sublimation state can be visually observed from the outside, and the end points can be easily confirmed. Furthermore, since the insect repellent is located near or around the inner bag containing the moisture absorbent, the insect repellent plays a role of shock absorption against pressure etc. during the distribution process, and calcium chloride is used as the moisture absorbent. The inner bag and insect repellent buffer against partial hardening and expansion due to moisture absorption, and the resulting pressure is not directly transmitted to the outer bag, so the inner solution generated by perforation of the outer bag and water absorption leaks to the outside. There is no such fear.

In addition, the moisture-proof and insect-proof bag according to the present invention has a structure in which a non-breathable film is superimposed on the breathable film part of the outer bag so that it can be peeled off. While airtightness can be maintained, when in use, air permeability can be easily obtained by simply peeling off the peeling part, and the sheet can be used, making its handling extremely simple. Furthermore, by configuring the outer bag into a standing pouch type as shown in Figure 1, it can stand on its own despite its bag shape, making it easy to use and allowing the bag to be used before loading the moisture absorbent and insect repellent. The fact that it can be folded flat is also advantageous in terms of transportability and storage.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view showing an embodiment of the moisture-proof and insect-proof bag of the present invention, Fig. 2 is a vertical sectional view of a conventional moisture-proof and insect-proof bag, and Figs. 3 to 5 are the moisture-proof and insect-proof bag of the present invention.
FIGS. 6 to 9 are schematic longitudinal sectional views showing various aspects of the outer bag of the insect-proof bag, and FIG. FIGS. 14 to 13 are schematic vertical cross-sectional views showing the structure of the inner bag and various arrangements of breathable films, and FIGS. 14 to 16 are schematic explanations showing how the moisture absorbent (and insect repellent) is stored in the inner bag. figure,
FIGS. 17 to 22 are schematic longitudinal sectional views showing various ways of storing the moisture absorbent and/or insect repellent in the inner bag or the outer bag. 1, 1a to 1c... outer bag, 2, 2a to 2i...
Inner bag, 6... Moisture absorbent, 7... Insect repellent, A... Breathable film, B... Non-breathable film, S... Seal portion.

Claims (1)

[Scope of utility model registration request] The moisture absorbent is stored in an inner bag whose entire side or part of the film is made of breathable/water-impermeable film, and on the other hand, the entire surface of one side or an appropriate part of the circumference is made of breathable/water-impermeable film. Inside the outer bag is made of a water-based film, and the other part is made of a non-breathable, water-impermeable, at least partially transparent film.
Alternatively, the insect repellent is stored in a breathable inner bag that is separate from or integrated with the inner bag, and the breathable/water-impermeable film of the inner bag is matched with the breathable/water-impermeable film of the outer bag. This moisture-proof and insect-proof bag has an inner bag housed within an outer bag so that the inner bag faces the water-based film and is visible through the non-breathable and water-impermeable film of the outer bag.