JPH07155367A - Volatilizer - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent the leakage of the content liquid and to evaporate the volatile liquid components at the same time regardless of polarity or molecular weight. A container 2 that contains a volatile liquid 1 such as an aromatic or a deodorant and has openings 3 and 10 at the bottom and is impermeable to gas and liquid, and an opening 3 and 10 at the bottom of the container 2. It is composed of a porous membrane 4 having a water repellent property that allows a cover gas to pass therethrough but does not allow a liquid to pass therethrough. The volatile liquid 1 is exposed in each of the pores of the porous membrane 4 to be evaporated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a volatilizing device which contains a volatile liquid such as an aromatic or a deodorant and evaporates it over a long period of time.

[0002]

2. Description of the Related Art As a volatilizing device of this type, there is a conventional device shown in FIG.
As shown in FIG. 1, the volatile liquid 102 is contained in a glass or plastic container 101 that is impermeable to gas and liquid, and the core 10
3, the volatile liquid 102 in the container 101 is sucked up and evaporated to a wide evaporation surface 104 such as a filter paper provided on the upper part of the container (Jitsuko Sho 56-16968).
No.) is common.

As a volatilizing device for hermetically sealing a container, for example, as shown in FIG. 8, a gas permeable film 204 is provided in an opening 203 on a side surface or an upper surface of a container 201 containing a volatile liquid 202. The volatile component that is attached and gasified in the container 201 is transferred to the container 2 via the film 204.
No. 01 (Japanese Utility Model Laid-Open No. 64-49246), or as shown in FIG. 9, a microporous hard material such as polypropylene powder and a fine filler that allows gas to pass but does not pass liquid. Proposed is one in which a container 301 itself is formed from mixed materials, and a port 303 into which a volatile liquid 302 is poured is sealed with a liquid-tight stopper 304 or a film such as an aluminum thin film (Japanese Utility Model Publication No. 62-145630). Has been done. According to these, the gasified component in the container 201 or 301 permeates to the outside through the film 204 that closes the opening or the wall surface of the container 301 itself and evaporates.

[0004]

However, in general, a volatile liquid such as a liquid fragrance is a mixed solution composed of a three-component system of a fragrance, water and alcohol, and this is made into one liquid with a surfactant. In the case of a volatilizer of the type of Japanese Utility Model Publication No. 56-16968, since the volatile liquid 102 sucked up by the core 103 separates a light molecular weight component and a heavy molecular component inside the core 103 due to a chromatographic adsorption phenomenon, the initial vaporization. There is a problem that the scent and the quality of the scent in the latter stage of transpiration change and only a light molecular weight fragrance evaporates first, leaving a heavy aromatic component that is difficult to evaporate and a surfactant that does not evaporate in the container. Therefore, there has been a problem that the effect of the fragrance is considerably weakened, or even if the fragrance is almost lost, it gives an illusion that it is still usable. Further, the container mechanism is complicated and many components are expensive, and there are drawbacks such as liquid leakage when the container is tilted.

Further, in the volatilization devices of Japanese Utility Model Publication No. 64-49246 and Japanese Utility Model Publication No. 62-145630, the film 204 which covers the opening 203 with only the components evaporated (gasified) in the containers 201 and 301. Or container 30
Since the gas permeation of 1 itself is used for evaporation, a light molecular weight aromatic agent component (volatile component) that is easily gasified first evaporates, causing a change in the desired fragrance.
There is a problem that aromatic compounds and surfactants with heavy molecular weight, which are hard to fly, remain. For this reason, there is a problem that it gives an illusion that it is still usable even though the effect as an aromatic is almost lost.

It is an object of the present invention to provide a volatilization device in which each component of a volatile liquid evaporates at the same time and does not remain inside the container.

[0007]

In order to achieve the above object, the volatilization apparatus of the present invention contains a volatile liquid such as a fragrance or a deodorant and has neither a gas nor a liquid having an opening at the bottom. It consists of a container and a porous membrane that covers the opening at the bottom of the container and allows gas to pass but does not allow liquid to pass,
The volatile liquid is allowed to evaporate from the bottom of the container.

Here, examples of the water-repellent porous membrane that allows gas to pass through but does not allow liquid to pass include, for example, cellulose acetate membrane, polyethylene-based or polypropylene-based polyolefin membrane, polyacrylonitrile membrane, polysulfone membrane, polyether sulfone membrane, Examples thereof include a polyimide film, a polyfluoroethylene film, and a polyvinylidene fluoride film. Among them, it is preferable to use a polyolefin microporous film.

[0009]

Therefore, the volatile liquid such as the liquid fragrance in the container does not leak out of the container due to the porous film covering the bottom opening of the container, but the surface tension causes the volatile liquid to enter into each micropore of the film. Is exposed and causes transpiration. Then, only a very small amount of surfactant that does not evaporate remains in the porous film.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described in detail below with reference to the embodiments shown in the drawings.

1 to 4 show an embodiment of the volatilizing device of the present invention. This volatilization device includes a container 2 that contains a volatile liquid 1 and has an opening 3 at the bottom, a porous membrane 4 that closes the opening 3 of the container 2, and a container 2 that supports the opening 3 downward. Holder 6 for As the volatile liquid 1, liquid fragrance, deodorant, deodorant, bactericide, rust preventive, attractant,
Liquids containing volatile substances such as repellents, pest control agents, pharmaceuticals, and perfumes are exemplified, but in this example, a mixed solution is prepared in which three components of perfume, water and alcohol are made into one liquid with a surfactant. There is.

Here, the container 2 is made of a material impermeable to gas and liquid, for example, glass, plastic, ceramics (pottery), metal, etc., and has an opening 3 at the bottom for pouring the volatile liquid 1. .

The container 2 of this embodiment has an opening 3 formed by projecting a cylindrical neck 7 at the bottom. Female threads 8 and male threads 9 are formed on the inner peripheral surface and the outer peripheral surface of the neck 7, respectively. A cap 5 having a porous film 4 is screwed onto the inner female threads 8 and a holder 6 is fitted onto the outer male threads 9. The female screw 17 on the large diameter side is screwed.

As shown in FIG. 3, an opening 10 is provided in the cap 5, and a porous membrane 4 having water repellent property is attached so as to cover the opening 10 and allow gas to pass through but not liquid. Has been. On the outer periphery of the cap 5, a male screw 11 that is screwed into the female screw 8 of the neck portion 7 of the container 2 is formed. Therefore, by simply screwing the cap 5 into the neck portion 7 of the container 2, the opening 10 having an arbitrary size covered with the porous film 4 can be formed in the opening or the opening 3 in the container 2. Here, as the porous membrane having water repellent property that allows gas to pass therethrough, however, for example, cellulose acetate film, polyethylene-based or polypropylene-based polyolefin film, polyacrylonitrile film, polysulfone film, polyethersulfone film, polyimide film, Examples thereof include a polyfluorinated ethylene film and a polyvinylidene fluoride film. Among them, it is preferable to use a polyolefin microporous film.

The holder 6 is mounted on the neck portion 7 of the container 2 and serves as a stopper of the container 2 before use, and also serves as a support base for supporting the container 2 with the openings 3 and 10 facing down. is there. That is, the holder 6 includes a small tubular portion 12 having an inner diameter substantially equal to the outer diameter of the cap 5, a large tubular portion 13 formed integrally with the small tubular portion 12 and having a diameter substantially equal to the neck portion 7 of the container 2, It is composed of a partition wall 14 provided between the tubular portion 12 and the large tubular portion 13. A plurality of evaporation windows 16 are opened in the circumferential direction of the large cylinder portion 13, and female threads 17 are formed on the inner peripheral surface above the evaporation windows 16. Further, a female screw 15 that is screwed with the male screw 11 of the cap 5 is formed on the inner peripheral surface of the small tubular portion 12.

According to the volatilization device constructed as described above, evaporation is performed as follows.

First, before use, the small tube portion 12 of the holder 6
Is screwed into the male screw 11 of the cap 5. Since the small tube portion 12 is sealed by the partition wall 14, the circumference of the cap 5 which is the evaporation port of the container 2 is sealed, and the volatile liquid 1 in the container 2 is evaporated from the porous membrane 4 and does not leak to the outside. .

Next, when using, once the holder 6
Is removed from the container 2, and then the female screw 17 of the large cylinder portion 13 is used to screw the holder 6 into the male screw 9 of the neck portion 7 of the container 2 and attach the holder 6 upside down. Then, the container 2 is set upside down, that is, the container 2 is placed on the holder 6 as shown in FIG. Then, the outside air passes under the porous membrane 4 and the volatile liquid in the container 2 becomes a state capable of evaporating through the evaporation window 16 (see FIG. 1). Volatile liquid 1 in container 2
As shown in FIG. 2, each volatile component 1 in the volatile liquid 1 from the porous film 4 provided on the cap 5, that is, each component of perfume, water, and alcohol excluding the surfactant is indicated by an arrow 1.
Evaporate at the same time as indicated by 9. Therefore, the volatile liquid 1 such as the liquid fragrance in the container 2 does not leak out of the container 2 due to the porous film 4 covering the bottom openings 3 and 10 of the container 2, but due to the surface tension, each of the films 4 is not leaked. The volatile liquid is exposed in the holes 18 and evaporates. Then, only a very small amount of the surfactant that does not evaporate remains in the porous film 4.

As the porous membrane of the volatilization apparatus of this example, a polyolefin microporous membrane (trade name NF sheet manufactured by Tokuyama Soda Co., Ltd.) was used, and the following aromatic solution was contained in a container. <Prescription> Fragrance 5 (parts by weight) Ethyl alcohol 35 Polyoxyethylene hydrogenated castor oil 2 Polyethylene glycol nonyl phenyl ether 3 Water 55 (total) 100

A test using a volatilization device containing a volatile liquid having such a composition showed that the amount of transpiration per day was almost uniform as shown in FIG. It was possible to observe that all the contents were lost. In addition, as shown in the data of FIG. 5, it was found that the amount of transpiration changes depending on the area of the porous membrane 4.
Aroma intensity is closely related to taste. From this, by adjusting the area of the porous film 4, it is possible to obtain an appropriate fragrance while suppressing an excessive fragrance or preventing only a slight fragrance from being emitted.

FIG. 6 shows another embodiment of the volatilization device of the present invention. In this volatilization device, the container 2 is sealed and supported by separate means, the holder 6 does not have a closed structure, and the surface of the porous film 4 before use is an impermeable film. 20
It is sealed with. Further, the holder 6 only functions as a support base for supporting the container 2 while keeping the opening 3 at the bottom thereof facing down, and therefore, the holder 6 is formed of one cylindrical portion. Therefore, in this volatilization device, when in use, the impermeable film 20 is peeled off to expose the porous film 4 to allow evaporation, and then the holder 6 is screwed again to support the container 2 with the holder 6. Therefore, the structure of the container 2 and the holder 6 can be simplified as compared with the first embodiment described above.

The above-described embodiment is an example of the preferred embodiment of the present invention, but the present invention is not limited to this, and various modifications can be made without departing from the gist of the present invention. For example, in the embodiment of FIG. 1, the cap 5 to which the porous film 4 is attached is screwed onto the neck 7 of the container 2, but the invention is not particularly limited to this, and the porous film 4 may be directly attached to the neck 7. You may stick by heat welding or an adhesive agent.

[0023]

As is apparent from the above description, the volatilization device of the present invention is a container that contains a volatile liquid such as an aromatic or a deodorant and has an opening at the bottom and is impermeable to gas and liquid. , Since it is composed of a porous membrane that covers the opening at the bottom of the container and allows gas to pass but does not pass liquid, there is no risk of liquid leakage even if it is collapsed, and The volatile liquid is exposed and each volatile component evaporates at the same time regardless of polarity or molecular weight. Then, only a very small amount of surfactant that does not evaporate remains in the porous film. Therefore, the entire amount of the volatile liquid such as the liquid fragrance in the container can be volatilized, and the end thereof can be clearly known.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing an embodiment of a volatilization device of the present invention in use.

FIG. 2 is an enlarged view for explaining the purpose of the porous film of the volatilization device of FIG.

FIG. 3 is a perspective view of the volatilization device of FIG. 1 with a holder removed.

FIG. 4 is a view showing a holder portion of the volatilization device of FIG.
(A) is a perspective view and (B) is a bottom view.

5 is a graph showing the relationship between the film area and the amount of transpiration as a result of the use test by the volatilization apparatus of FIG.

FIG. 6 is a perspective view showing another example of the volatilization device of the present invention.

FIG. 7 is a vertical cross-sectional view showing an example of a general conventional volatilization device.

FIG. 8 is a vertical cross-sectional view showing an example of a volatilization device whose mouth is closed with a gas-permeable film.

FIG. 9 is a vertical cross-sectional view showing an example of a volatilization device using a gas permeable container.

[Explanation of symbols]

 1 Volatile Liquid 2 Container 3, 10 Opening 4 Porous Membrane 6 Holder

Claims (1)

[Claims] 1. A container that contains a volatile liquid such as a fragrance or a deodorant and has neither a gas nor a liquid that has an opening at the bottom, and a container that covers the opening at the bottom of the container and allows the gas to pass therethrough but not the liquid. A volatilization device comprising a porous membrane having water-repellency that does not pass through, and evaporating a volatile liquid from the bottom of the container.