JP7229693B2 - chemical volatilizer - Google Patents

Description

TECHNICAL FIELD The present invention relates to a chemical volatilization tool and a chemical used in the chemical volatilization tool.

Liquid or gel agents are used for volatilization tools for volatilizing aromatic agents, deodorants, deodorants, insect repellents, and the like. Such a volatilization tool is sealed after the container is filled with a chemical containing a fragrance or the like, and when it is opened at the time of use, the chemical volatilizes over a long period of time, usually several months, and the effect is exhibited. . In particular, as volatilization tools for volatilizing a liquid volatile chemical, there have been proposed some devices in which the opening of a container is covered with a chemical-permeable film.

For example, the present applicant has proposed a fragrance volatilization tool (see Patent Document 1) in which the lower surface of a container containing a fragrance solution is covered with a microporous membrane that is permeable to gas but impermeable to liquid, and is dissolved in an organic solvent. Alternatively, they have proposed an aromatic volatilization tool (see Patent Document 2) that includes a perfume solution emulsified and solubilized in water and a microporous membrane that allows gas to permeate but does not permeate liquid.

In addition, the present applicant stores a flying insect repellent containing a polyether compound in a container having an opening on the top, and the opening is made of stretched or unstretched polypropylene, polyethylene (for example, linear low-density polyethylene). , low-density polyethylene, etc.) has been proposed (see Patent Document 3).

Japanese Utility Model Laid-Open No. 60-177844 JP-A-60-232163 JP 2012-136461 A

The present inventors focused on the relationship between the gas-permeable film used for the chemical volatilization tool and the chemical, and as a result of intensive research, they discovered a new problem.

That is, when a microporous sheet is used as a gas-permeable film, when an aqueous solution in which a highly lipophilic perfume or the like is solubilized with a surfactant is used as a drug to be put inside, the surface tension decreases, The drug tends to leak outside through the pores of the microporous sheet.

In addition, when a nonporous film is used as the gas permeable film, there is no problem of leakage of the drug to the outside, but the permeability of the drug to the nonporous film varies depending on the affinity between the film and the drug. Medication is restricted. Therefore, when a volatilization tool having a nonporous film is used as, for example, an aromatic volatilization tool, there is a problem that the scent tone is limited.

The present invention has been made in view of such circumstances, and a drug volatilization tool that can be used as a volatilization tool for a wide range of drugs without being limited by the type of drug, and that suppresses drug leakage, and , an object of the present invention is to provide a drug contained in this drug volatilization tool.

As a result of intensive research to solve the above problems, the present inventors have found that an aqueous solution containing cellulose nanofibers is used as a drug to be used in a drug volatilization tool using a microporous sheet as a drug permeable film. The present inventors have found that the above problems can be solved by using them, and have completed the present invention.

That is, according to one aspect of the present invention, a container at least partially formed of a microporous sheet and a drug contained in the container are provided, and the drug volatilizes through the microporous sheet. Provided is a drug volatilization tool, wherein the drug contains at least a functional substance, cellulose nanofibers, and water.

In one embodiment, the container, at least a portion of which is composed of a microporous sheet, includes a storage section provided with an opening, and a microporous sheet covering the opening provided in the storage section. , the drug is stored in the storage part whose opening is covered with the microporous sheet.

In addition, according to another aspect of the present invention, the drug is volatilized through the microporous sheet by being accommodated in the container of the drug volatilization tool having a container at least partially formed of a microporous sheet. Provided is a drug for use, which contains at least a functional substance, cellulose nanofibers, and water.

In one embodiment, the container, at least a portion of which is composed of a microporous sheet, includes a storage section provided with an opening, and a microporous sheet covering the opening provided in the storage section. The drug is stored in the storage part in which the opening is covered with the microporous sheet, and is used for volatilization through the microporous sheet.

ADVANTAGE OF THE INVENTION According to the present invention, it is possible to provide a chemical volatilization tool that can be used as a volatilization tool for a wide range of chemicals without being restricted by the type of the chemical, and in which leakage of the chemical is suppressed.

Sectional drawing which shows typically one aspect|mode of the chemical volatilization tool of this invention. Sectional drawing which shows typically the other aspect of the chemical volatilization tool of this invention.

The chemical volatilization tool and the chemical of the present invention will be described in detail below.
A chemical volatilization tool according to an embodiment of the present invention includes a container at least partially composed of a microporous sheet, and a chemical contained in the container. At least a portion of the container containing the drug may be composed of a microporous sheet.

In one embodiment, the container may be a bag-like container in which the entire container containing the drug is composed of a microporous sheet (first embodiment (not shown)). In another aspect, the container includes a storage section provided with an opening, and a microporous sheet covering the opening provided in the storage section, and the opening is formed by the microporous sheet. (second and third embodiments).

Here, the drug used in the drug volatilization tool contains at least a functional substance, cellulose nanofibers and water. By containing cellulose nanofibers, it is possible to stably disperse functional substances such as perfumes with high lipophilicity in water with high surface tension, so it is not necessary to use surfactants as dispersants. do not have. When a dispersing agent such as a surfactant is used, the surface tension decreases, so if a microporous sheet is used as the drug-permeable sheet, there is a problem that the drug leaks out from the pores, but cellulose nanofiber is used. By doing so, drug leakage can be prevented. On the other hand, the chemical volatilization tool has a microporous sheet, and the chemical volatilizes out of the container through the microporous sheet, so a wide range of chemicals can be used without being restricted by the type of chemical. can. Therefore, for example, when the chemical volatilization tool according to the present embodiment is used for aromatics, the range of usable scent components is widened.

FIG. 1 is a cross-sectional view schematically showing a second embodiment of the chemical volatilization tool of the present invention. The drug volatilization tool 1 is provided with a top-opening container 3 having an opening on the top surface, and a microporous sheet 4 covering the opening of the container 3. The microporous sheet 4 covers the opening. A medicine 2 is stored in the part 3 . The containing portion 3 and the microporous sheet 4 are joined at a joint portion A, and the drug 2 volatilizes from the containing portion 3 to the outside through the microporous sheet 4 . The joining means of the joining portion A is not particularly limited, and can be joined by a conventionally known method such as heat sealing.

FIG. 2 is a cross-sectional view schematically showing a third embodiment of the chemical volatilization tool of the present invention, in which the chemical volatilization tool 10 is placed on a horizontal plane H. As shown in FIG. The drug volatilization tool 10 includes a side-opening container 13 having an opening on the side, and a microporous sheet 14 covering the opening of the container 13. The microporous sheet 14 covers the opening. Medicine 12 is stored in portion 13 . The containing portion 13 and the microporous sheet 14 are joined at a joint portion A, and the drug 12 volatilizes from the containing portion 13 to the outside through the microporous sheet 14 .

Since the drug volatilization tool according to the present invention is excellent in suppressing drug leakage from the microporous sheet, even if the drug 12 is in contact with the microporous sheet 14 like the drug volatilization tool 10 shown in FIG. good. The drug volatilization tool 10 is superior in drug volatilization efficiency because the drug 12 is in contact with the microporous sheet 14 .

The microporous sheet used in the present invention is a sheet having fine pores. A film sheet and the like are included. Although the diameter of the pores in the microporous sheet is not particularly limited, a diameter of about 0.1 to 10 μm is usually preferable from the viewpoint of suppressing drug leakage and efficiently volatilizing the drug.

The material of the microporous sheet is not particularly limited, and examples thereof include thermoplastic resins such as polyolefin resins, and those treated with fluorine, silicon, or the like for water repellency. In one embodiment of the present invention, the microporous sheet is preferably a drug-permeable sheet obtained by providing fine pores by stretching a resin composition in which a filler is added to a polyolefin resin.

Thermoplastic resins that can be used for the microporous sheet include, for example, α-olefin homopolymers such as low-density polyethylene, high-density polyethylene, polypropylene, and polybutene; ) with at least one α-olefin, copolymers of propylene with ethylene and/or butene-1, ethylene with vinyl acetate and/or acrylic acid esters/methacrylic acid esters, etc. Examples thereof include copolymers with organic carboxylic acid derivatives having bonds.

Among them, a copolymer of ethylene and at least one α-olefin having 3 to 8 carbon atoms is particularly preferable from the viewpoint of strength when blended with a filler. from the viewpoint of extrusion lamination property and stretchability.
There are also those obtained by stretching polytetrafluoroethylene in the same way, and those produced by a completely different manufacturing method, in which a cloth densely woven with ultrafine fibers with a diameter of 10 μm or less is surface-treated with water-repellent, oil-repellent fluorine, etc. mentioned.

When the microporous sheet is produced by stretching a thermoplastic resin containing a filler, the preferable blending ratio of the filler is, for example, 30 parts by mass or more with respect to 100 parts by mass of the thermoplastic resin. It is 300 mass parts or less. The content of 30 parts by mass or more is preferable from the viewpoint of exhibiting gas permeability after stretching, and the content of 300 parts by mass or less is preferable from the viewpoint of avoiding breakage during stretching.

In one embodiment, the filler is preferably finely powdered and blended with the thermoplastic resin. As the filler, both inorganic fillers and organic fillers can be used. Examples of inorganic fillers include carbonates such as calcium carbonate, magnesium carbonate, barium carbonate, sulfates such as barium sulfate, magnesium sulfate, calcium sulfate, phosphates such as magnesium phosphate, calcium phosphate, magnesium hydroxide, water Hydroxides such as aluminum oxide, oxides such as alumina, silica, magnesium oxide, calcium oxide, zinc oxide and titanium oxide, chlorides such as zinc chloride, iron chloride and sodium chloride, aluminum powder, zeoite, shirasu, clay, Examples include diatomaceous earth, talc, carbon black, and volcanic ash. Examples of organic fillers include cellulose powders such as wood flour and pulp powder, synthetic resin powders such as nylon powder, polycarbonate powder, polypropylene powder, poly-4-methylpentene-1 powder, and starch. These may be used alone or in combination of two or more. Among the fillers described above, calcium carbonate is particularly preferably used in the present invention from the viewpoint of gas permeability, flexibility, appearance, etc. of the microporous sheet. The average particle diameter of the filler is preferably 0.1 to 20 μm from the viewpoint of uniformity of the microporous sheet, and more preferably 0.8 to 5.0 μm from the viewpoint of workability.

In one embodiment, the draw ratio for forming a microporous sheet is preferably 1.02 or more. When the draw ratio is 1.02 times or more, the micropores are sufficiently formed, and the desired gas permeability can be easily obtained. In order to develop high gas permeability at such a low draw ratio, the thermoplastic resin preferably contains 30% by mass or more of a resin having a density of 0.920 g/cm ³ or more. Commercially available microporous sheets include NF sheet (manufactured by Tokuyama Corporation) and Cellpore (manufactured by Sekisui Chemical Co., Ltd.).

The storage part constituting the drug volatilization tool is not particularly limited as long as it can store the drug inside without leakage, and may be a molded storage part or a flexible storage part. good too. Materials such as plastics, metals, pottery, and glass can also be used. Of these, it is preferable to use plastic in terms of the degree of freedom in the shape of the accommodating portion and the cost.

Examples of plastics used as a material for the container include polyethylene terephthalate, polyethylene and polypropylene, composites thereof, and the like. As described above, the material of the microporous sheet is preferably an olefin resin such as polyethylene or polypropylene. It is preferable because it can be heat-sealed with the porous sheet.

The drug stored in the drug volatilization tool according to the embodiment contains at least a functional substance, cellulose nanofibers, and water, as described above. Here, the cellulose nanofiber has a function of dispersing the functional substance in water. As described above, cellulose nanofibers can stably disperse functional substances such as perfumes with high lipophilicity in water with high surface tension, so there is no need to use a surfactant as a dispersant. .

The cellulose nanofibers contained in the drug preferably have a maximum fiber diameter of 1000 nm or less. It is preferable that the maximum fiber diameter of the cellulose nanofibers is 1000 nm or less from the viewpoint of uniform dispersibility of components including functional substances contained in the drug. The maximum fiber diameter of the cellulose nanofibers is more preferably 100 nm or less, still more preferably 30 nm or less, and particularly preferably 10 nm or less.

Here, the maximum fiber diameter of cellulose nanofibers is specifically measured by the following method. That is, water is added to the cellulose nanofibers to be measured to prepare a dispersion having a concentration of 0.05% by mass to 0.1% by mass, and the dispersion is placed on a hydrophilized carbon film-coated grid. and observed with a transmission electron microscope (TEM). An arbitrary image width axis is assumed in the obtained image, and the sample, magnification, etc. are adjusted so that 20 or more fibers intersect the axis. After obtaining the image, two random axes are drawn vertically and horizontally for each image, and the fiber diameters of the fibers crossing the axes are visually read. In this way, a minimum of three non-overlapping surface portion images are taken with an electron microscope and the fiber diameter values of the fibers crossing each of the two axes are read. Therefore, at least 20 x 2 x 3 = 120 fiber diameter information can be obtained. The maximum fiber diameter among the data on the fiber diameter thus obtained is determined as the maximum fiber diameter of the cellulose nanofibers of the present invention.

Cellulose nanofibers can be produced by a known method. For example, a co-oxidizing agent such as hypohalous acid is added to a dispersion liquid in which cellulose is dispersed to carry out an oxidation reaction, followed by purification and refinement treatment. Obtainable. Specifically, it can be produced by the methods described in JP-A-2008-1728 and JP-A-2010-37200. As cellulose nanofibers, for example, commercially available Rheocrysta (manufactured by Daiichi Kogyo Seiyaku Co., Ltd.) and cellenpia (manufactured by Nippon Paper Industries Co., Ltd.) may be used because of their easy availability.

The blending ratio of cellulose nanofibers is preferably 0.01% by mass to 10% by mass, more preferably 0.1% by mass to 2% by mass, and more preferably 0.2% by mass to 1.0% by mass, relative to the total mass of the drug. 0% by weight is particularly preferred. A cellulose nanofiber content of 10% by mass or less is preferable from the viewpoint of suppressing deterioration in productivity due to an increase in viscosity, and a content of 0.01% by mass or more is preferable from the viewpoint of dispersibility. preferred from

The functional substance used in the drug according to the present embodiment is not particularly limited, but examples thereof include insect repellent ingredients, insecticidal ingredients, antibacterial ingredients, antifungal ingredients, deodorant ingredients, fragrances, moisturizing ingredients, and the like. These may be used alone or in combination of two or more depending on the application field and required performance of the chemical volatilization tool.

Examples of insect repellent and insecticidal components include pyrethroid insect repellent and insecticidal components such as empenthrin, transfluthrin, allethrin, phenothrin, eminence, and profluthrin, paradichlorobenzene, naphthalene, camphor, 2-phenoxyethanol, and the like. Alternatively, two or more kinds can be mixed and used.

As the antibacterial and antifungal components, organic compounds are preferable because they do not easily affect other essential components. Specifically, N-(fluorodichloromethylthio)-phthalimide, N-dichlorofluoromethylthio-N',N'-dimethyl-N-phenylsulfamide, 2-isopropyl-5-methylphenol, parachlorometaxylenol, Balachlorometacresol, hinokitiol, cedarwood oil, allyl isothiocyanate, eugenol, vanillin, isoborneol, salicylaldehyde and the like are preferred, and one or more of these can be used in combination.

A plant extract etc. are mentioned as a deodorizing component.

Fragrances include, for example, animal fragrances such as musk, spirit cat incense, and dragon incense, abies oil, action oil, almond oil, angelica root oil, pager oil, bergamot oil, perch oil, boa barose oil, chayabuchi oil, and gananga. Oil, capsicum oil, caraway oil, cardamom oil, cassia oil, celery oil, cinnamon oil, citronella oil, cognac oil, coriander oil, cumin oil, camphor oil, dill oil, estogorane oil, eucalyptus oil, fennel oil, garlic oil. , ginger oil, grapefruit oil, hop oil, lemon oil, lemongrass oil, nutmeg oil, mandarin oil, peppermint oil, orange oil, sage oil, star anise oil, turpentine oil and the like. In addition, artificial fragrances such as synthetic fragrances or extracted fragrances can also be used as fragrances. alcohol-based fragrances such as alcohol; phenol-based fragrances such as anethole and eugenol; aldehyde-based fragrances such as n-butyraldehyde, isobutyraldehyde, hexylaldehyde, citral, citronellal, benzaldehyde, and cinnamic aldehyde; Examples include ketone fragrances such as ionone, lactone fragrances such as γ-butyl lactone, coumarin and cineol, and ester fragrances such as octyl acetate, benzyl acetate, cinnamyl acetate, butyl propionate and methyl benzoate. Furthermore, a compounded perfume in which two or more of the above perfumes are mixed can also be used.

The blending ratio of the functional substance is preferably 0.1% by mass to 30% by mass, more preferably 0.5% by mass to 10% by mass, and further 1% by mass to 5% by mass with respect to the total mass of the drug. preferable. If the blending ratio of the functional substance is 30% by mass or less, the particle size becomes large due to coalescence that may occur after dispersion, making it difficult to obtain stable dispersibility. It is preferable from the viewpoint of suppressing an excessive amount of adhesion. In addition, from the viewpoint of expressing the effect of the functional substance itself, it is preferably 0.1% by mass or more.

The drug according to this embodiment is prepared by dispersing the functional substance in water using cellulose nanofibers. The method of dispersing is not particularly limited, and specific examples include a homomixer under high-speed rotation, a high-pressure homogenizer, an ultrahigh-pressure homogenizer, an ultrasonic dispersion treatment, a beater, a disk-type refiner, a conical-type refiner, a double-disk-type refiner, and a grinder. , a screw type mixer, a paddle mixer, a disper type mixer, a turbine type mixer and the like can be used. A preferred example of the dispersing method is a method of dispersing with a homogenizer.

A solvent can be used in the drug according to the present embodiment within a range that does not impair the performance of the drug in order to assist the dispersion of the functional substance or to adjust the volatilization of the functional substance. Specific examples of solvents include alcohols such as methanol, ethanol, isopropanol, isobutanol, sec-butanol, tert-butanol, methyl cellosolve, ethyl cellosolve, ethylene glycol, glycerin; ethylene glycol dimethyl ether, 1,4-dioxane. Ethers such as , tetrahydrofuran; ketones such as acetone and methyl ethyl ketone; amides such as N,N-dimethylformamide and N,N-dimethylacetamide; These can be used alone or in combination of two or more. Ethanol is preferable from the viewpoint of dispersibility, safety, and the like. Although the blending ratio of the solvent is not particularly limited, in one form, it is preferably 10% by mass or less, more preferably 5% by mass or less, relative to the total mass of the drug. A content of 10% by mass or less is preferable from the viewpoint of maintaining the transpiration of the functional substance and preventing drug leakage due to a decrease in surface tension.

The drug according to this embodiment may contain ingredients other than the above as long as the effects of the present invention are not impaired. Other components include, for example, surfactants for dissolving and dispersing functional substances, specifically nonionic surfactants, cationic surfactants, and anionic surfactants. Amphoteric surfactants can be used.

In addition to the above surfactants, other components include thickeners, pigments, ultraviolet absorbers, antioxidants, pH adjusting components such as acids and alkalis, antifoaming agents, emulsifiers, and the like.

As described above, the drug volatilization tool according to the embodiment can volatilize the internal drug through the microporous sheet for a wide range of drugs without being restricted by the type of drug. In addition, since the drug according to the embodiment has a suppressed decrease in surface tension, leakage of the drug from the pores of the microporous sheet is suppressed.

EXAMPLES The present invention will be described in more detail below with reference to Examples and Comparative Examples, but the present invention is not limited to the Examples and Comparative Examples.

<Preparation of drug>
Preparation Example 1 (Preparation of aromatic liquid 1)
0.5 g of cellulose nanofiber (manufactured by Nippon Paper Industries Co., Ltd., maximum fiber diameter: 3 nm) and 95 g of water were dispersed using a high-pressure homogenizer at a rotation speed of 8000 rpm/min for 30 minutes. Next, 5 g of a green blended perfume (manufactured by Takasago International Corporation) was added as a perfume component, and further dispersed for 5 minutes at a rotation speed of 8000 rpm/min using a homogenizer to prepare aromatic liquid 1.

Preparation Example 2 (Preparation of aromatic liquid 2)
A control aromatic liquid 2 was prepared by mixing 1 g of a green compound fragrance (manufactured by Takasago International Corporation), 2 g of a surfactant (POE alkyl ether), 3 g of ethanol, and 94 g of water as fragrance components.

Preparation Example 3 (Preparation of aromatic liquid 3)
As perfume ingredients, 10 g of a green compound perfume (manufactured by Takasago International Corporation), 25 g of an isoparaffin solvent (trade name: Isopar L; manufactured by Exxon Mobil) and 65 g of a glycol ether solvent (trade name: DOWANOL DPM; manufactured by DOW Chemical) are mixed. A control aromatic liquid 3 was prepared.

<Experimental example>
In order to evaluate the relationship between each of the aromatic liquids prepared in Preparation Examples 1 to 3 and the drug-permeable sheet, a bag made of a microporous sheet or a non-porous permeable sheet (hereinafter referred to as "fragrant") was produced. and evaluated for exudation and fragrance.

Example 1, Comparative Examples 1 and 2
1.5 ml of each aromatic liquid prepared in Preparation Examples 1 to 3 is sealed in a bag (50 mm × 50 mm) made of a microporous sheet (trade name Cellpore; manufactured by Sekisui Chemical Co., Ltd., average pore size 3 μm), Fragrances 1 to 3 were produced.

Comparative Examples 3-5
1.5 ml of each aromatic liquid prepared in Preparation Examples 1 to 3 is placed in a bag ( 50 mm × 50 mm) to produce fragrances 4 to 6.

<Evaluation>
[Exudation test]
Fragrances 1 to 6 were left for 5 days, and oozing out from the film surface was visually confirmed.

[Fragrance test]
Perfumes 1 to 6 were subjected to the following tests regarding fragrance by 10 panelists trained in fragrance.
・Fragrance similarity Each panelist sniffed the green fragrance used to prepare each fragrance liquid as it was, and then smelled the fragrances of fragrances 1 to 6, and evaluated the similarity of fragrance according to the following criteria. . The higher the similarity value, the closer the volatilized scent is to the original scent of the perfume, which is preferable. The table below shows the average values.
The scent is the same...3
The scent is similar ... 2
The scent is not similar... 1

- Fragrance intensity Each panelist evaluated the intensity of the fragrance emitted from the fragrances 1 to 6 according to the following criteria. Strong strength is preferred. The table below shows the average values.
very strong...4
strong 3
normal ..... 2
Weak 1
No smell...0

As shown in the above results, it was found that fragrance 1 (Example 1) did not seep out, and the scent that volatilized was similar to the scent of the original perfume, and the intensity of the scent was high.
On the other hand, fragrances 2 (Comparative Example 1) and 3 (Comparative Example 2) exuded, and the similarity of fragrance was low. Fragrances 4 to 6 (Comparative Examples 3 to 5) did not seep out of the aromatic liquid, but the similarity of the fragrance was poor and the intensity was weak, and the original fragrance of the fragrance could not be diffused. Neither was satisfactory.

Example 2
100 ml of the aromatic liquid 1 prepared in Preparation Example 1 was enclosed in a chemical volatilization tool similar to the chemical volatilization tool 2 shown in FIG. The chemical volatilization tool used here has the same microporous sheet as used in Experimental Examples 1 to 3 as the microporous sheet. As a result of the experiment, no exudation of the aromatic liquid from the surface of the microporous sheet was observed. In addition, this chemical volatilization device maintained good performance with respect to similarity and intensity of fragrance for about 5 days.

Although the chemical volatilization tool of the present invention uses a microporous sheet, there is no risk of leakage of the chemical. Furthermore, unlike non-porous films such as EVA and urethane, which limit the permeation of drugs due to their affinity with the film, the drug stored in the volatilization tool can pass through the microporous sheet while maintaining the initial drug composition. evaporate in the street. Therefore, the selectivity of the permeability of the transpirationable drug is lost, and the inherent transpiration of the drug can be maintained, so that it can be widely and suitably used for fragrances and the like.

It should be noted that the present invention is not limited to the above-described embodiments, and various modifications can be made in the implementation stage without departing from the scope of the invention. Further, each embodiment may be implemented in combination as appropriate, in which case the combined effect can be obtained. Furthermore, various inventions are included in the above embodiments, and various inventions can be extracted by combinations selected from a plurality of disclosed constituent elements. For example, even if some constituent elements are deleted from all the constituent elements shown in the embodiments, if the problem can be solved and effects can be obtained, the configuration with the constituent elements deleted can be extracted as an invention.

Reference Signs List 1, 10... Drug volatilization tools 2, 12... Drugs 3, 13... Storage parts 4, 14... Microporous sheet H... Horizontal plane A... Joint part
<Appendix>
The invention described in the scope of claims at the time of filing the present application will be additionally described below.
[1]
A drug volatilization tool comprising a container at least partially composed of a microporous sheet and a drug contained in the container, wherein the drug volatilizes through the microporous sheet, wherein the drug is , a chemical vaporizer containing at least a functional substance, cellulose nanofibers, and water.
[2]
The container at least partially composed of a microporous sheet comprises a container provided with an opening, and a microporous sheet covering the opening provided in the container, and the drug is The drug volatilization tool according to appendix [1], which is accommodated in the accommodation part in which the opening is covered with the microporous sheet.
[3]
The drug volatilization tool according to appendix [1] or [2], wherein the cellulose nanofibers contained in the drug have a maximum fiber diameter of 100 nm or less.
[4]
The agent contains, as the functional substance, one or more selected from fragrance ingredients, insect repellent ingredients, insecticidal ingredients, antifungal ingredients, antibacterial ingredients, deodorant ingredients, and moisturizing ingredients. The chemical volatilization tool according to any one of [3].
[5]
A drug used for volatilization through the microporous sheet by being housed in the container of a drug volatilization tool having a container at least partially composed of a microporous sheet, A drug containing at least a substance, cellulose nanofibers and water.
[6]
The container, at least a portion of which is composed of a microporous sheet, includes a storage section provided with an opening, and a microporous sheet covering the opening provided in the storage section, and the drug is The drug according to appendix [5], which is used for volatilization through the microporous sheet by being accommodated in the accommodation part in which the opening is covered with the microporous sheet.
[7]
The drug according to appendix [5] or [6], wherein the cellulose nanofibers contained in the drug have a maximum fiber diameter of 100 nm or less.
[8]
Supplementary notes [5]- The agent according to any one of [7].

Claims (5)

A drug volatilization tool comprising a container at least partially composed of a microporous sheet and a drug contained in the container, wherein the drug volatilizes through the microporous sheet, wherein the drug is , the microporous sheet contains at least a functional substance, cellulose nanofibers and water and does not contain a surfactant , the microporous sheet is a stretched sheet of a thermoplastic resin containing a filler, and the drug A chemical volatilizer in contact with the porous sheet. The container at least partially composed of a microporous sheet comprises a container provided with an opening, and a microporous sheet covering the opening provided in the container, and the drug is 2. The chemical volatilization tool according to claim 1, which is accommodated in said accommodating portion in which said opening is covered with said microporous sheet. The drug volatilization tool according to claim 1 or 2, wherein the cellulose nanofibers contained in the drug have a maximum fiber diameter of 100 nm or less. Claims 1 to 3, wherein the agent contains, as the functional substance, one or two or more selected from a fragrance component, an insect repellent component, an insecticidal component, an antifungal component, an antibacterial component, a deodorant component and a moisturizing component. The chemical volatilization tool according to any one of the above. The chemical volatilization tool according to any one of claims 1 to 4, wherein the microporous sheet contains calcium carbonate as the filler.

Images