JP2021142240A - Slowly releasing tool - Google Patents

Abstract

To provide a slowly releasing tool with a simple configuration which makes it easy to mix a reaction reagent.SOLUTION: A slowly releasing tool 10 is configured to release chlorine dioxide gas by adding a granular reaction agent 18 to a liquid reagent 16 composed of a sodium chlorite aqueous solution and a chlorine dioxide aqueous solution. A single inner container 12 includes therein the liquid reagent 16 and the granular reaction agent 18, and a boundary wall 14 to be collapsed by an external pressure is disposed on a boundary between a first region 12a including the liquid reagent 16 therein and a second region 12b including the granular reaction agent 18 therein.SELECTED DRAWING: Figure 1

Description

The present invention relates to a sustained-release device, and particularly relates to a sustained-release device suitable for arrangement in a relatively narrow space such as a living room space of a vehicle.

In recent years, deodorant gas accompanied by sterilization and sterilization of air has been attracting attention as a part of removing odors in a predetermined space and countermeasures against infectious diseases. Chlorine dioxide gas having a low concentration is preferably used as a gas having such a sterilizing, sterilizing, and deodorizing effect, and Patent Documents 1 and 2 are for easily generating chlorine dioxide gas. Sustained release tools are disclosed.

For example, the sustained-release tool disclosed in Patent Document 1 encloses an acid solution in which an acid component and a water solution are mixed in a container, and chlorine dioxide as a gas generating agent separately packaged with respect to this acid solution. Sodium chlorite is added to generate chlorine dioxide gas.

Further, the sustained-release tool disclosed in Patent Document 2 is for breaking an aqueous solution bag containing a chloric acid aqueous solution, a gelling agent mixed with an organic acid, and an aqueous solution bag in a closed container. It is constructed by enclosing a bag-breaking protrusion. According to the sustained-release tool disclosed in Patent Document 2, the aqueous solution bag is ruptured in the closed container by applying a pressing force so as to press the aqueous solution bag against the bag-breaking protrusion from the outside of the closed container, and chlorination is applied. Chlorine dioxide gas can be generated by reacting an aqueous acid solution with an organic acid.

Japanese Unexamined Patent Publication No. 2017-61395 Japanese Unexamined Patent Publication No. 2012-11028

With the sustained-release device having the configuration disclosed in Patent Document 1, there is a concern that the gas generating agent may be spilled when it is put into the container, or the gas generating agent bag itself may be lost. On the other hand, the sustained-release tool having a configuration as disclosed in Patent Document 2 has a relatively simple structure, and can generate chlorine dioxide gas only by pressing the closed container from the outside.

However, all of the sustained-release tools disclosed in Patent Documents 1 and 2 contain reaction reagents (liquid and powder) in separate containers. For this reason, it takes time and effort to mix the two, and it is necessary to improve the airtightness of the container constituting the exterior, which requires time and effort in use or production.

Therefore, an object of the present invention is to provide a sustained-release tool capable of easily mixing reaction reagents with a simple structure.

The sustained-release device according to the present invention for achieving the above object is a sustained-release device that releases chlorine dioxide gas by adding a powder-granular reactant to a liquid reagent consisting of an aqueous solution of sodium chlorite or an aqueous solution of chlorine dioxide. The liquid reagent and the powder-grained reactant are sealed in a single container, and an external pressure is formed at the boundary between the first region in which the liquid reagent is sealed and the second region in which the powder-grained reactant is sealed. It is characterized by providing a boundary wall that collapses due to.

Further, in the sustained-release tool having the above-mentioned characteristics, the powder-grain type reactant may be a water-absorbing polymer. With such a configuration, the water-absorbing polymer absorbs the liquid reagent and gels. This eliminates the risk of the liquid reagent spilling after the liquid reagent reacts with the powdery reactant. In addition, since it does not actively react with the acid, the reaction with the liquid reagent becomes slow, and chlorine dioxide gas can be generated for a long period of time.

Further, in the sustained-release tool having the above-mentioned characteristics, the container is a vertical container in which the second region is arranged on the lower side of the first region, and the boundary wall is made of a thin film. A thin film breaking member that breaks the thin film by pressing is projected from the upper surface of one region, and the thin film breaking member and the upper surface of the first region are connected by a thin-walled portion that breaks by pressing to seal the first region. It is good to secure the state. According to having such a feature, the liquid reagent enclosed in the first region moves to the second region by free fall due to the breakage of the thin film (boundary wall) due to pressing, and is a powder type. It will react with the reagent. Further, the chlorine dioxide gas generated by the reaction between the liquid reagent and the powder / granular material type reactant is released to the outside of the container through the thin film portion broken by pressing.

Further, the sustained-release device having the above-mentioned characteristics includes an outer container capable of accommodating the container and a lid covering the upper opening of the outer container, and the lid is attached to the outer container. An opening is provided in a portion located above the thin film breaking member, and the opening is provided with a pressing piece arranged with a gap between the opening and the opening, and a pressing piece arranged in the gap. It is desirable to connect the edge of the opening and the pressing piece so that a flexible piece for supporting the pressing piece is provided. According to having such a feature, the thin film breaking member of the container (inner container) can be pressed only by pushing the pressing piece of the outer container. Therefore, chlorine dioxide gas can be generated without taking out the inner container.

Further, in the sustained-release tool having the above-mentioned characteristics, the container is formed of a porous membrane that allows gas to permeate and does not allow liquid to permeate, and constitutes the boundary between the first region and the second region. The wall can also be constructed by welding the inner surface of the porous membrane. According to having such a feature, a liquid reagent and a powder / granular material type reactant can be sealed in one bag-shaped container. Further, chlorine dioxide gas can be generated and released to the outside without breaking the bag itself constituting the container.

Further, the sustained-release tool having the above-mentioned characteristics includes an outer container that holds the container in a plane direction by the lower piece and the upper piece, and the first region is arranged in the upper piece. It is desirable that an opening is provided at the position, and the opening is provided with a pressing piece capable of pressing the first region on one side of the lower portion. According to having such a feature, it is possible to press the container (inner container) and react the liquid reagent with the powder / granular material type reactant by simply pressing the pressing piece of the outer container.

According to the sustained-release tool having the above-mentioned characteristics, it becomes possible to easily mix the reaction reagents with a simple structure.

It is a figure which shows the cross-sectional shape of the sustained-release tool which concerns on 1st Embodiment. It is an exploded perspective view which shows the structure of the sustained-release tool which concerns on 1st Embodiment. It is a figure which shows the planar shape of the lid body of the outer container which constitutes the sustained release tool which concerns on 1st Embodiment. It is a figure which shows the AA cross section in FIG. It is sectional drawing which shows the example of the case where the inner container of the sustained release tool which concerns on 1st Embodiment is composed of a completely single container. It is an exploded perspective view which shows the structure of the sustained-release tool which concerns on 2nd Embodiment. It is a perspective view which shows the form of the inner container of the sustained-release tool which concerns on 2nd Embodiment. It is sectional drawing which shows the state which accommodated the inner container in the outer container of the sustained-release tool which concerns on 2nd Embodiment. It is sectional drawing which shows the state which accommodated the inner container in the outer container of the sustained-release tool which concerns on 2nd Embodiment, and pressed the 1st region of the inner container by a pressing piece.

Hereinafter, embodiments of the sustained-release device of the present invention will be described in detail with reference to the drawings. It should be noted that the embodiments shown below are a part of a suitable embodiment for carrying out the present invention, and as long as the effect is exhibited, even if a part of the configuration is changed, a part of the present invention is used. Can be regarded as.

[First Embodiment]
First, the sustained-release device according to the first embodiment will be described with reference to FIGS. 1 to 4. In the drawings, FIG. 1 is a view showing a cross-sectional configuration of the sustained-release tool according to the first embodiment, and FIG. 2 is an exploded perspective view of the same. FIG. 3 is a diagram showing a plan view shape of the lid body constituting the outer container, and FIG. 4 is a diagram showing a cross section taken along the line AA in FIG.

The sustained-release tool 10 according to the present embodiment includes an inner container 12 and an outer container 24. The inner container 12 has a first region 12a and a second region 12b, and a boundary wall 14 is provided at the boundary between the two regions. The first region 12a is a region in which the liquid reagent 16 is sealed, and in the present embodiment, a sodium chlorite solution or a chlorine dioxide aqueous solution is sealed.

The second region 12b is a region for encapsulating the powder-grain type reactant 18. The powder / granular material type reactant 18 may be any as long as it can react with the liquid reagent 16 to generate chlorine dioxide gas. In this embodiment, a water-absorbing polymer is used as the powder-grain type reactant 18. Specific examples of the water-absorbing polymer may be a crosslinked polyacrylic acid such as sodium polyacrylate, a crosslinked polyamino acid, or the like. The boundary wall 14 is made of a thin film.

A seal portion 20 for sealing the region is provided on the upper surface of the first region 12a. In the present embodiment, the thin film breaking member 22 is provided at the center of the seal portion 20. The thin film breaking member 22 may be a rod-shaped member, and is arranged so that one end thereof is in contact with or close to the boundary wall 14 and the other end is projected from the seal portion 20. The thin film breaking member 22 may be fixed as long as it is connected to the sealing portion 20 by welding, and the welding portion 20a is formed at another portion of the sealing portion 20 so as to be broken by a force pressing the other end of the thin film breaking member 22. It is configured to be thinner than the wall.

Further, in the form shown in FIG. 1, when a pressing force is applied to the thin film breaking member 22, the thin film breaking member 22 is not pushed toward the boundary wall 14 and is broken off, so that the lower surface side of the seal portion 20 is prevented. The guide 20b is provided along the extending direction (pushing direction) of the thin film breaking member 22.

In such a configuration, the thin film breaking member 22 is pushed by applying a pressing force to the other end of the thin film breaking member 22, and the boundary wall provided between the first region 12a and the second region 12b is provided. 14 is broken. As a result, the liquid reagent 16 encapsulated in the first region 12a flows into the second region 12b and reacts with the powder-grain type reactant 18. In the present embodiment, since the powder-grain type reactant 18 is a water-absorbing polymer, the powder-grain type reactant 18 absorbs the liquid reagent 16 and enlarges to form a gel and generate chlorine dioxide gas.

When chlorine dioxide gas (ClO _{2 ) is generated from sodium chlorite (NaClO 2} ) as a component of the liquid reagent 16 _{Generally, citric acid (C 6} H ₈ O ₇ ), which is an organic acid, is generated in the liquid reagent 16. Is taken. The reaction at that time is as shown in [Chemical formula 1].

Here, it is known that the properties of chlorine dioxide gas generated by the addition of an acid to the liquid reagent 16 differ depending on the type of acid and the like. For example, in the case of citric acid described above, the reaction is quick and the amount of chlorine dioxide gas generated at the initial stage of the reaction is large, and in the case of fumaric acid, the reaction is relatively gentle and the state of chlorine dioxide gas generation is prolonged. Can be made to.

As described above, the water-absorbing polymer as the powder-grain type reactant 18 used in the present embodiment is also a partially sodium salt-crosslinked acrylic acid polymer, and can be a kind of acid. Then, due to the fact that the liquid reagent 16 is taken into the powdery reaction agent 18 by water absorption and the state of chlorine dioxide gas generation due to the difference in the type of acid described above, the acid (for example, citric acid) is directly applied. It shows a slower reaction than when it is added, and it is possible to generate a predetermined amount of chlorine dioxide gas for a long period of time.

The chlorine dioxide gas generated by the reaction of the liquid reagent 16 and the powder / granular material type reactant 18 in the second region 12b flows into the first region 12a through the pores of the boundary wall 14 formed by the thin film breaking member 22. The chlorine dioxide gas that has flowed into the first region 12a is dissipated to the outside through a through hole (not shown) formed by breaking the welded portion 20a by pressing the thin film breaking member 22. Since the liquid reagent 16 is absorbed by the powder-grain type reactant 18 and gelled, there is no risk of the contents spilling even if the inner container 12 is rolled over or turned upside down.

In addition, in FIG. 1, it is shown that a small container constituting the first region 12a is fitted in a large container constituting the second region 12b, but this is a liquid reagent 16 or a powder / granular material type reactant. Considering the ease of encapsulating 18 in each region, as shown in FIG. 5, the first region 12a and the second region 12b can be completely contained in one container. ..

The outer container 24 is a cosmetic container for accommodating the inner container 12. As shown in FIGS. 1 and 2, the outer container 24 of the present embodiment includes a container body 26 and a lid 28. The container body 26 may be in a form capable of accommodating the inner container 12, and it is desirable that the contained inner container 12 has a form having a holding property that does not shift inside. In the present embodiment, the bottom plate and the side wall are provided, and the side wall is formed into a so-called cup shape by forming a cylindrical shape having an inclination so as to narrow the opening area from the upper opening to the bottom plate.

The lid 28 is an element that covers the upper opening of the container body 26. In the present embodiment, as shown in FIG. 3, the opening 30 is provided at the center of the upper surface of the lid 28. The opening 30 is provided so as to be located above the thin film breaking member when the inner container 12 is arranged in the container body 26. A pressing piece 32 is arranged in the opening 30. The pressing piece 32 is arranged so as to provide a gap 30a between the pressing piece 32 and the edge of the opening 30, and a flexible piece 34 for supporting the pressing piece 32 is provided between the pressing piece 32 and the edge.

With such a configuration, the pressing piece 32 can be pushed in the surface direction, that is, in the thickness direction of the lid 28, as shown in FIG. As a result, the pressing force can be applied to the thin film breaking member 22 by pushing the pressing piece 32 with the lid body 28 arranged. Further, by making the flat area of the pressing piece 32 larger than the area of the other end portion of the thin film breaking member 22, it is possible to push the thin film breaking member 22 with a small force due to the difference in the pressure receiving area.

The chlorine dioxide gas generated by pushing the thin film breaking member 22 is dissipated through the gap 30a provided between the edge of the opening 30 in the lid 28 and the pressing piece 32.

[effect]
According to the sustained-release tool 10 as described above, by enclosing the liquid reagent 16 and the powder-grain type reactant 18 in a single inner container 12, a simple configuration in which a plurality of members do not fall apart can be achieved. can do. Further, the liquid reagent 16 and the powder-grain type reactant 18 can be mixed and reacted by simply pushing the thin film breaking member 22 provided in the inner container 12.

Further, by adopting a water-absorbing polymer as a reaction agent (powder-type reactant 18) with the liquid reagent 16, the reaction for generating chlorine dioxide gas is slower than in the case where the liquid reagent 16 is positively reacted with an acid. become. Therefore, it is possible to generate a gas having a stable concentration for a long period of time.

[Second Embodiment]
Next, the sustained-release tool 10A according to the second embodiment will be described with reference to FIGS. 6 to 9. In the drawing, FIG. 6 is an exploded perspective view of the sustained-release tool according to the second embodiment, and FIG. 7 is a perspective view of the inner container of the sustained-release tool according to the second embodiment. Further, FIG. 8 is a cross-sectional view showing a state in which the inner container is housed in the outer container, and FIG. 9 is a cross-sectional view showing a state in which the first region is pressed by the pressing piece.

The sustained-release device according to the present embodiment also includes an inner container and an outer container, similarly to the sustained-release device according to the first embodiment described above. The elements that perform the same functions as the sustained-release tool 10 according to the first embodiment will be described using the same names, and the same reference numerals will be given to the drawings.

Unlike the sustained-release tool 10 according to the first embodiment, the inner container 12 according to the present embodiment is formed of a flexible porous membrane. The porous membrane here is permeable to gas and impermeable to liquid. With such a configuration, the liquid reagent 16 does not leak to the outside, and chlorine dioxide gas generated by the reaction between the liquid reagent 16 and the powder / granular material type reactant 18 can be released. The liquid reagent 16 and the powder-grain type reactant 18 may be the same as the sustained-release tool 10 according to the first embodiment described above.

The inner container 12 according to the present embodiment is formed by welding a boundary wall 14 that forms a boundary between a first region 12a that encloses the liquid reagent 16 and a second region 12b that encloses the powder-grain type reactant 18. .. Welding may be performed by pressurizing and heating the inner surface of the porous membrane constituting the inner container 12 in contact with each other. Here, it is assumed that the welded surface forming the boundary wall 14 has a weaker adhesive strength than the welded portion formed on the edge of the first region 12a and the second region 12b. This is because when the first region 12a is pressed, the boundary wall 14 collapses before the welded portion on the edge edge.

The outer container 24 has a lower piece 26a and an upper piece 28a that sandwich and accommodate the inner container 12 arranged in a plane direction along the plane direction. The lower piece 26a is provided with a positioning table 36 for arranging the first region 12a of the inner container 12. The positioning table 36 is a portion of the wall surface forming the lower piece 26a so as to be thicker. By providing the positioning table 36, when the first region 12a is pressed by the pressing piece 32, which will be described in detail later, the gap between the lower piece 26a and the pressing piece 32 is reduced, and the pressing force effectively acts on the boundary wall 14. It becomes possible to make it. Further, by increasing the thickness, bending is less likely to occur when the pressing force of the pressing piece 32 is applied.

The upper piece 28a is a cover member arranged so as to cover the lower piece 26a in which the inner container 12 is arranged. At the position corresponding to the positioning table 36, an opening (first opening 38) for arranging the pressing piece 32, which will be described in detail later, is provided. Further, an opening (second opening 40) for dissipating chlorine dioxide gas is provided at a position other than the position corresponding to the positioning table 36. Although not shown, a part of the upper piece 28a along the longitudinal direction of the first opening 38 is configured to be thicker than the other parts, and is located between the lower piece 26a and the positioning table 36. The configuration is such that the vicinity of the edge of the first region 12a can be sandwiched. With such a configuration, the contents (liquid reagent 16) of the first region 12a can be collected on the side of the first opening 38. Therefore, it becomes easy to apply the pressing force by the pressing piece 32.

The pressing piece 32 according to the present embodiment is a section to be fitted into the first opening 38 provided in the upper piece 28a, and in the present embodiment, the pressing piece 32 has a planar shape along the shape of the first opening 38, and has an upper portion. An engaging portion 32a is provided at a position close to the end portion in the longitudinal direction of the piece 28a, and the pressing piece 32 can swing with the engaging portion 32a as a base point. In the present embodiment, the thickness of the pressing piece 32 is adjusted so that when the pressing piece 32 is pushed in, there is almost no gap between the pressing piece 32 and the positioning table 36 constituting the lower piece 26a. With such a configuration, the first region 12a of the inner container 12 can be pressed by pushing the pressing piece 32, and after the boundary wall 14 is collapsed, the liquid reagent 16 in the first region 12a is pressed. It is possible to positively pour into the second region 12b.

According to the sustained release tool 10A having such a configuration, by pushing the pressing piece 32 toward the lower piece 26a, the first region 12a of the inner container 12 is pressed and the boundary wall 14 collapses. By further pushing the pressing piece 32 in this state, the liquid reagent 16 encapsulated inside the first region 12a flows into the second region 12b, mixes with the powder-grain type reactant 18, and chlorine dioxide gas is generated.

The chlorine dioxide gas generated in the inner container 12 permeates through the porous membrane and fills the space between the outer container 24 and the inner container, and then the second opening 40 and the first opening provided in the upper piece 28a. It is dissipated from the gap between 38 and the pressing piece 32.

[effect]
Even with the sustained-release tool 10A as described above, the liquid reagent 16 and the powder-grain type reactant 18 are sealed in a single inner container 12 as in the sustained-release tool 10 according to the first embodiment. , It is possible to have a simple configuration in which a plurality of members do not fall apart. Further, the liquid reagent 16 and the powder / granular material type reactant 18 can be mixed and reacted by simply pushing the pressing piece 32 provided in the outer container 24.

Further, by adopting a water-absorbing polymer as a reaction agent (powder-type reactant 18) with the liquid reagent 16, the reaction for generating chlorine dioxide gas is slower than in the case where the liquid reagent 16 is positively reacted with an acid. become. Therefore, it is possible to generate a gas having a stable concentration for a long period of time.

Further, the liquid reagent 16 and the powder / granular material type reactant 18 react inside the inner container 12, and the chlorine dioxide gas generated by the reaction goes to the outside without breaking the bag-shaped inner container 12. It is released. Therefore, there is no risk that the liquid reagent 16 or the powder-grain type reactant 18 will come into contact with the skin or clothing of the user, and high safety can be ensured.

10, 10A ………… Sustained release tool, 12 ………… Inner container, 12a ………… 1st region, 12b ………… 2nd region, 14 ………… Boundary wall, 16 ………… Liquid reagent, 18 …… … Granular reagent, 20 ……… Seal part, 20a ……… Welding part, 22 ……… Thin film breaking member, 24 ……… Outer container, 26 ……… Container body, 26a ……… Lower piece, 28 ……… Lid, 28a ……… Upper piece, 30 ……… Opening, 30a ……… Gap, 32 ……… Pressing piece, 32a ……… Engaging part, 34 ……… Flexible piece, 36 ……… Positioning table, 38 ……… First opening, 40 ……… Second opening.

Claims (6)

A sustained-release tool that releases chlorine dioxide gas by adding a powder-granular reactant to a liquid reagent consisting of an aqueous solution of sodium chlorite or an aqueous solution of chlorine dioxide.
The liquid reagent and the powder / granular material-type reactant are sealed in a single container, and the liquid reagent and the powder / granular material-type reactant are enclosed, and the boundary between the first region in which the liquid reagent is enclosed and the second region in which the powder / granular material-type reactant is enclosed is disintegrated by external pressure. A sustained-release tool characterized by the provision of a boundary wall. The sustained-release tool according to claim 1, wherein the powder-grain type reactant is a water-absorbing polymer. The container is a vertical container in which the second region is arranged on the lower side of the first region, and the boundary wall is made of a thin film.
A thin film breaking member that breaks the thin film by pressing is projected on the upper surface of the first region.
The sustained-release tool according to claim 1 or 2, wherein the thin film breaking member and the upper surface of the first region are connected by a thin-walled portion that breaks by pressing to secure a sealed state of the first region. An outer container that can accommodate the container and
A lid covering the upper opening of the outer container is provided.
The lid has an opening at a portion located above the thin film breaking member when attached to the outer container.
In the opening, a pressing piece arranged with a gap between the opening and a pressing piece arranged in the gap and the edge of the opening and the pressing piece can be connected to support the pressing piece. The sustained-release tool according to claim 3, wherein a flexible piece is provided. The container is composed of a porous membrane that allows gas to permeate and does not allow liquid to permeate.
The boundary wall forming the boundary between the first region and the second region is
The sustained-release tool according to claim 1 or 2, wherein the porous film is formed by welding the inner surface of the porous film. An outer container for holding and accommodating the container in a plane direction by a lower piece and an upper piece is provided.
The upper piece is provided with an opening at a position where the first region is arranged.
The sustained-release tool according to claim 5, wherein the opening is provided with a pressing piece capable of pressing the first region on one side of the lower portion.

Images