JP2002060302A - Volatilizable chemical preparation, and mildewproof material for air conditioner by using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently volatilize a chemical such as a mildewproof agent in a site easily reaching a highly humid state to keep the site in a hygienic state. SOLUTION: This volatilizable chemical preparation is constituted of a volatilizable chemical 3 and a container 1a for storing the volatilizable chemical 3 and having a part or the whole formed out of a humidity-sensitive base material 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a volatile drug preparation which releases a volatile drug when a high humidity condition is reached.

[0002]

2. Description of the Related Art After turning off an air conditioner,
Dew easily accumulates and the humidity tends to be high. In a place in such a high humidity state, when the temperature rises moderately, mold grows and it is easy to become unsanitary.

[0003]

The above-mentioned high-humidity locations can be treated by ventilation, wiping of dew, or spraying a fungicide. However, even in such a place, even if the above measures are taken, unless the above measures are repeated, it returns to a high humidity state, and mold and the like are likely to occur.

[0004] Therefore, an object of the present invention is to efficiently vaporize a chemical such as a fungicide in a place where a high humidity state is likely to occur, and to maintain a sanitary state.

[0005]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems by storing a volatile chemical and a volatile chemical, and forming a part or all of the material with a moisture-sensitive substrate. It is.

When the humidity of a humidity-sensitive substrate is equal to or higher than a predetermined humidity, the gas permeability of the substrate increases. Therefore, in a high humidity state, a volatile agent such as a fungicide contained in the container can be volatilized to the outside through the humidity-sensitive substrate and maintained.

[0007]

Embodiments of the present invention will be described below.

The volatile drug preparation according to the present invention comprises a volatile drug and a container.

The volatile chemicals are chemicals having a volatile property at room temperature, for example, antibacterial agents, fungicides, insect repellents, fragrances,
Deodorants and the like.

Specific examples of the above antibacterial and antifungal agents include isothiocyanates such as allyl isothiocyanate (hereinafter abbreviated as “AIT”), citral, and the like.
Eucalyptus oil, menthol, rosemary, hinokitiol and the like can be mentioned. Examples of the insect repellent include various pyrethroids, cineol, terpineol, citronellal, thymol and the like. Examples of the fragrance include limonene, orange oil, lemon oil, lime oil, musk, lavender oil, jasmine oil, vanillin and the like.
Examples of the deodorant include bamboo extract, mugwort extract, camellia oil, moon peach oil, green tea extracted oil, persimmon extracted oil, and the like. These volatile agents are not limited to one type, and may be a mixture of a plurality of types.

The volatile chemicals may be used in any of liquid, gel and resin states. Further, the volatile agent can be used by being carried on a carrier or enclosed in a gas-permeable bag. Further, the resinous material can be used after being formed into an arbitrary shape such as a sheet shape.

The above-mentioned container is a container capable of storing the above-mentioned volatile chemicals, and a part or all of which is formed of a moisture-sensitive substrate.

The above-mentioned humidity-sensitive base material means a base material which has little gas permeability in a low humidity state and therefore hardly permeates, while having a high gas permeability in a high humidity state. Examples of the humidity sensitive member constituting the base material include viscose processed paper, poval film, chitosan processed paper, cellophane, and the like. This humidity sensitive member is not limited to the above-described one kind of base material, and may be used by laminating two or more kinds of base materials.

An example of the structure of the above-mentioned humidity-sensitive substrate is a combination of the above-mentioned humidity-sensitive member and a supporting member for supporting the same. The support member is not particularly limited as long as it has gas permeability, but may be configured by a holding member of the humidity sensitive member, or the holding member and a supporting auxiliary member that supports the holding member. it can.

The holding member is a member for holding the humidity-sensitive member, and may be a nonwoven fabric or the like. The support auxiliary member is an auxiliary member for supporting the holding member, and examples include a non-stretched polypropylene film. As the support auxiliary member, in addition to the above, stretched polypropylene, polyethylene, polyester, nylon,
Examples of the film include an ethylene-vinyl alcohol polymer (EVA). These are used together with a sealant material such as polyethylene. The holding member and the supporting auxiliary member are joined via an adhesive layer such as polyethylene.

When the moisture-sensitive substrate is used for a part of the container, the remaining part is preferably made of a gas-impermeable material. Such gas impermeable substances include:
Polypropylene, polyethylene terephthalate, ABS
Examples include resin, glass, and metal.

As the shape of the container, any shape can be adopted according to the shape of the humidity-sensitive substrate. For example, as shown in FIGS. 1A and 1B, a box-shaped container 1a partially having an opening 2a can be given. The container 1a is formed of the gas-impermeable material, the opening 2a is covered with the humidity-sensitive substrate 4, and the volatile drug 3 is inserted into the container 2a to form a volatile drug formulation. it can. The moisture-sensitive substrate 4 of the opening 2a
If a gas-impermeable film is adhered to the substrate, the volatilization of the volatile agent can be suppressed when not in use. The volatile drug can be volatilized from the material 4 to the outside of the container 1a.

FIG. 2A shows another shape of the box shape.
As shown in (b), a box-shaped container 1b formed of a gas-impermeable substance and one entire surface of which is formed of a humidity-sensitive substrate 4 can be used. By inserting the volatile drug 3 into the inside of the container 1b and covering the opening surface 2b with the humidity-sensitive substrate 4, a volatile drug formulation can be formed. If a gas-impermeable film is pasted on the humidity-sensitive substrate 4 on the opening surface 2b, the volatilization of the volatile agent can be suppressed when not in use. Under the humidity condition, the volatile drug can be volatilized from the humidity-sensitive substrate 4 to the outside of the container 1b.

Alternatively, the above-mentioned volatile drug preparations may be sealed in a gas-impermeable bag such as an aluminum bag, and the above-mentioned volatile drug preparations may be taken out of the bag when used.

FIG. 3 shows a bag-like shape.
(A) As shown in (b), there is a container 1c composed entirely of a humidity-sensitive substrate 4. Further, as shown in FIG. 4, there is a container 1d in which a moisture-sensitive substrate 4 is adhered to a sheet 5 formed of a gas-impermeable material. These can form a volatile drug formulation by inserting the volatile drug 3 into the containers 1c and 1d. By covering the bag-shaped containers 1c and 1d with another container such as a bag made of a gas-impermeable film, the volatilization of the volatile agent can be suppressed when not in use, and the above-mentioned another container is removed when used. Therefore, under high humidity conditions,
The volatile drug can be volatilized outside the containers 1c and 1d.

The volatile drug preparation according to the present invention can be used in places where the humidity tends to be high, for example, air conditioners, bathrooms, chests, shoes, closets, horticultural facilities, feed tanks, containers and the like.

FIG. 1 shows a specific example of a volatile drug preparation.
The container 1a shown in (1) is provided with a mounting member, which can be attached to an air conditioner. In this case, a device using a volatile antifungal agent such as isothiocyanate as the volatile agent is used for air conditioner protection. Examples of use as mold material are given.

[0023]

(Embodiment 1) A container 1a shown in FIG. 1 as a container.
Was used. This container is made of polypropylene 55mm x 1
It has a size of 35 mm × 15 mm and has an area of the opening 2 a.
1400mm ^TwoAnd Then, the lower part of the opening 2a
The humidity-sensitive substrate manufactured by the method described above was attached.

The humidity-sensitive substrate was produced by the following method. That is, a rayon / pulp mixed nonwoven fabric having a basis weight of 14 g / m ² (mixing ratio: 30:70) was used as a supporting member, and a polyethylene adhesive layer (thickness: 15 μm) was provided on one side of the nonwoven fabric.
0 μm unstretched polypropylene was laminated. A viscose solution (cellulose concentration: 3.0%, alkali concentration: 1.9%) was coated on the other surface with a roll coater at 5.0 g / m ² , regenerated in a sulfuric acid bath, washed with water, and washed with a cylinder. It was dried with a dryer. Thus, a humidity-sensitive substrate was manufactured.

Further, a bag of a volatile drug was produced by the following method. Rosin ester 800g and wax 200g,
40 g of coconut oil was melted and liquefied by heating to 90 ° C., mixed with 500 g of AIT, and heated and kneaded for 10 minutes to obtain a kneaded product. This kneaded material was filled in a bag (packing size 34 mm × 83 mm) made of a laminate having a thickness of 65 μm made of a polyethylene laminate of stretched polypropylene,
A bag of the volatile agent was obtained. The bags used have sufficient gas permeability.

The bag of the obtained volatile agent is placed in the above container and left at 30 ° C., 95% RH or 25% RH.
The amount of T released was measured. The result is shown in FIG.

(Embodiment 2) Opening 2a of the container of Embodiment 1
Area of 350 mm ² , 700 mm ² , 1400 mm ²
In the case of the above, the release amount of AIT at 30 ° C. and 95% RH was measured. FIG. 6 shows the result.

Example 3 Except that the amount of the viscose solution applied to the support member in Example 1 was 3.9 g / m ² , and the humidity-sensitive substrate produced by the method described in Example 1 was used. Was made into a 45 mm × 90 mm pillow bag using a humidity-sensitive substrate manufactured in the same manner as in Example 1. Into this pillow bag, a bag (packing size 42) composed of a laminate having a thickness of 65 μm consisting of a polyethylene laminate of stretched polypropylene containing 500 mg (liquid) of AIT.
mm × 70 mm).

The obtained pillow bag was left at 30 ° C. and 95% RH or 65% RH, and the amount of released AIT was measured. FIG. 7 shows the result.

(Example 4) A rayon / pulp mixed nonwoven fabric having a basis weight of 14 g / m ² (mixing ratio: 30:70) was used as a supporting member, and a polyethylene adhesive layer (thickness: 15 μm) was formed on one surface of the nonwoven fabric.
A polyethylene having a thickness of 15 μm is laminated through the above to obtain a laminate having a size of 45 μm, which is formed into a bag (packing size 40 mm × 50 m).
m), and citral (liquid) was sealed to produce a bag of the volatile drug.

The moisture-sensitive substrate produced in Example 1 was made into a pillow bag (package size: 45 mm × 90 mm), and the bag of the volatile agent was sealed to obtain a bag shown in FIG.

The obtained bag was placed at 30 ° C., 25% RH or 9%.
It was left at 5% RH and the amount of citral released was measured. FIG. 8 shows the result.

[0033] From the results FIGS. 5 and 8, under conditions of high humidity, volatile drug was revealed that release. In addition, FIG. 6 reveals that the larger the area of the humidity-sensitive substrate, the larger the amount of the volatile chemical released under high humidity conditions. Further, from FIG. 7, it is clear that the thickness of the humidity-sensitive member of the humidity-sensitive substrate affects the amount of the volatile agent released under low humidity conditions, but is not particularly affected when the humidity is high. Was.

[0034]

According to the present invention, when the humidity is low, the volatile agent is hardly released, and only when the humidity is high, the volatile agent is released. For this reason, it is effective when it is desired to exhibit the function of the volatile agent only under high humidity conditions, and enables long-term use.

In particular, when the volatile agent is an antibacterial agent or a fungicide, the generation of bacteria and mold under high humidity conditions can be suppressed.

[Brief description of the drawings]

FIG. 1A is a perspective view showing an example of a volatile drug preparation according to the present invention. FIG. 1B is a cross-sectional view taken along line AA of FIG.

FIG. 2 (a) is a perspective view showing another example of the volatile drug preparation according to the present invention.

FIG. 3 (a) is a perspective view showing another example of the volatile drug preparation according to the present invention.

FIG. 4 is a cross-sectional view showing another example of the volatile drug preparation according to the present invention.

FIG. 5 is a graph showing the results of Example 1.

FIG. 6 is a graph showing the results of Example 2.

FIG. 7 is a graph showing the results of Example 3.

FIG. 8 is a graph showing the results of Example 4.

[Explanation of symbols]

 1a, 1b, 1c, 1d Container 2a Opening 2b Opening Surface 3 Volatile Drug 4 Moisture Sensitive Base Material 5 Sheet

Claims (4)

[Claims] 1. A volatile drug preparation comprising a volatile drug and a container containing the volatile drug and partially or entirely formed of a moisture-sensitive substrate. 2. The volatile drug preparation according to claim 1, wherein the humidity-sensitive member constituting the humidity-sensitive substrate is a viscose-treated paper. 3. A fungicide for an air conditioner comprising the volatile chemical preparation according to claim 1 or 2, wherein a volatile fungicide is used as the volatile chemical. 4. The fungicide according to claim 3, wherein the fungicide is an isothiocyanate.