阅读说明：本技术 二氧化氯发生装置和二氧化氯发生系统 (Chlorine dioxide generator and chlorine dioxide generating system ) 是由 原田士郎 伊藤真也 于 2020-04-15 设计创作，主要内容包括：本发明提供一种适合长期保管并能稳定留存于使用对象中而起效果的二氧化氯发生装置。该二氧化氯发生装置(101)具有：容纳含有亚氯酸盐和热解法二氧化硅的第一组合物的第一容器(11)、容纳含有酸性物质和热解法二氧化硅的第二组合物的第二容器(21)、容纳第一容器(11)和第二容器(21)的外侧容器(31)、将从第一容器(11)放出的第一组合物与从第二容器(21)放出的第二组合物混合并制成混合组合物的混合部(41)、和将在混合部(41)中混合的混合组合物吐出的吐出部(51)。(The invention provides a chlorine dioxide generator which is suitable for long-term storage and can be stably kept in a using object to achieve an effect. The chlorine dioxide generator (101) comprises: the device comprises a first container (11) for containing a first composition containing chlorite and fumed silica, a second container (21) for containing a second composition containing an acidic substance and fumed silica, an outer container (31) for containing the first container (11) and the second container (21), a mixing section (41) for mixing the first composition discharged from the first container (11) and the second composition discharged from the second container (21) to prepare a mixed composition, and a discharge section (51) for discharging the mixed composition mixed in the mixing section (41).)

1. A chlorine dioxide generator, comprising:

a first container containing a first composition comprising chlorite and fumed silica,

a second container containing a second composition comprising an acidic material and fumed silica,

an outer container accommodating the first container and the second container,

a mixing section for mixing the first composition discharged from the first container with the second composition discharged from the second container to prepare a mixed composition, and

a discharge section for discharging the mixed composition mixed in the mixing section.

2. The chlorine dioxide generating apparatus according to claim 1,

the first container and the second container are bag-shaped,

the outer container is a pressure-resistant container which accommodates the first container and the second container and is filled with a propellant,

the mixing section is a coupling section of a pipe connected to the first vessel and the second vessel accommodated in the pressure-resistant vessel,

the device has an on-off valve for adjusting the discharge of the first composition and the second composition to the mixing section and the discharge section,

the mixed composition is ejected from the ejection part by opening the open/close valve.

3. Chlorine dioxide generation device according to claim 1 or 2, wherein the fumed silica is a hydrophobic fumed silica.

4. The chlorine dioxide generation device according to any one of claims 1 to 3, wherein the chlorite salt is 1 or more selected from the group consisting of sodium chlorite, potassium chlorite, and calcium chlorite, and the first composition contains water and an alcohol as a dispersant.

5. The chlorine dioxide generator according to any one of claims 1 to 4, wherein the acidic substance is at least 1 selected from the group consisting of citric acid, phosphoric acid, acetic acid and hydrochloric acid, and the second composition contains water and an alcohol as a dispersant.

6. The chlorine dioxide generator according to any one of claims 1 to 5, wherein the pH of the first composition is 9 or more.

7. The chlorine dioxide generator according to any one of claims 1 to 6, wherein the first composition contains 1 or more selected from the group consisting of sodium hydroxide, potassium hydroxide, lithium hydroxide, calcium hydroxide, magnesium hydroxide, sodium carbonate, and sodium tetraborate.

8. A chlorine dioxide generation device as claimed in any one of claims 1 to 7, wherein the pH of the second composition is 5 or less.

9. A chlorine dioxide generating device comprising a first composition comprising chlorite and fumed silica and a second composition comprising an acidic material and fumed silica;

the device having an inner container containing either the first or second composition and an outer container containing the other of the one composition,

the inner container is internally wrapped in the outer container, and,

the device further includes a mixing section for mixing the one composition discharged from the inner container with the other composition contained in the outer container to prepare a mixed composition, and a discharge section for discharging the mixed composition mixed in the mixing section.

10. A chlorine dioxide generating system having a first composition comprising chlorite and fumed silica and a second composition comprising an acidic material and fumed silica, and generating chlorine dioxide from a mixed composition of the first composition and the second composition.

Technical Field

The invention relates to a chlorine dioxide generating device and a chlorine dioxide generating system.

Background

Products for sterilization, disinfection, sterilization, deodorization, and epidemic prevention are required to remove bacteria, viruses, and the like floating in, adhering to, or adhering to spaces, objects, organisms, and the like. Products used for such sterilization and the like include products of a standing type (e.g., き type), a stick type, and a spray type using chlorine dioxide.

Patent document 1 discloses a method for producing a stabilized chlorine dioxide aqueous solution, which is characterized by adding a buffer to an aqueous solution containing 3 to 15% of chlorite, adjusting the pH to 7 to 9, and then maintaining the temperature of the aqueous solution at 20 to 50 ℃ for 1 to 5 days to thereby contain chlorine dioxide at a desired concentration.

Patent document 2 discloses a pure chlorine dioxide solution characterized by containing a dissolved chlorine dioxide gas, a chlorite salt and a pH adjuster as components.

Patent document 3 discloses a gel composition containing a pure chlorine dioxide solution having a dissolved chlorine dioxide gas, a chlorite salt, and a pH adjuster which is phosphoric acid or a salt thereof, as components, and a super absorbent resin.

Patent document 4 discloses a finger sterilizer characterized by being composed of (a) a first liquid component and (b) a2 nd liquid component; the first liquid component is composed of a chlorous acid solution and is charged into the first dispenser, and is discharged as a first spray of the liquid component or as a first spray of the liquid component; the 2 nd liquid component is composed of an acid solution and is loaded into a2 nd dispenser, and is sprayed as a2 nd spray of the liquid component or is discharged as a2 nd spray of the liquid component; wherein said chlorous acid reacts with said acid to produce chlorine dioxide when said 1 st liquid component is mixed with said 2 nd liquid component, and wherein an equal amount of said 1 st liquid component and said 2 nd liquid component comprises at least 15% by weight alcohol, and at least a portion of said alcohol comprises 3-methoxy-3-methylbutan-1-ol (MMB).

Documents of the prior art

Patent document

Patent document 1: japanese laid-open patent publication No. 4-46003

Patent document 2: japanese patent laid-open publication No. 11-278808

Patent document 3: japanese patent laid-open publication No. 2013-230974

Patent document 4: japanese patent laid-open publication No. 2013-540118

Disclosure of Invention

Problems to be solved by the invention

Chlorine dioxide solutions containing chlorine dioxide are known, as described in patent documents 1 to 3. These documents have studied about stabilization, and the stability is low in the state of chlorine dioxide, and thus it is not suitable for long-term storage. In addition, even if treatment such as stabilization is performed, chlorine dioxide erodes the container, and vaporization occurs during storage, and the chlorine dioxide concentration decreases, and a one-liquid type chlorine dioxide solution or the like is not suitable for long-term storage in some cases.

Patent document 4 loads a chlorous acid solution into a first dispenser and an acid solution into a second dispenser 2. However, if the liquid is used as it is, it may be volatilized or dropped rapidly from the place where it is attached, and thus it may not be effective in a short time. In addition, even if only a gelling agent such as a polymer is added, there are cases where these gelling agents have problems in stability to chlorine dioxide and the like and in ease of use of the gelled solution.

Under the circumstances, an object of the present invention is to provide a chlorine dioxide generator and a chlorine dioxide generating system which are suitable for long-term storage and can be stably retained in a target object to be used and are effective.

Means for solving the problems

As a result of intensive studies to solve the above problems, the present inventors have found that the following invention satisfies the above object, and have completed the present invention. That is, the present invention relates to the following inventions.

<1> a chlorine dioxide generator comprising: the liquid container includes a first container containing a first composition containing chlorite and fumed silica, a second container containing a second composition containing an acidic substance and fumed silica, an outer container containing the first container and the second container, a mixing section for mixing the first composition discharged from the first container with the second composition discharged from the second container to form a mixed composition, and a discharge section for discharging the mixed composition mixed in the mixing section.

<2> the chlorine dioxide generating apparatus according to <1>, wherein the first container and the second container are bag-shaped, the outer container is a pressure-resistant container which contains the first container and the second container and is filled with a propellant, and the mixing section is a coupling section of a pipe which is connected to the first container and the second container contained in the pressure-resistant container; the device has an on-off valve for adjusting the discharge of the first composition and the second composition to the mixing section and the discharge section, and the mixed composition is ejected from the discharge section by opening the on-off valve.

<3> the chlorine dioxide generator according to <1> or <2>, wherein the fumed silica is a hydrophobic fumed silica.

<4> the chlorine dioxide generator according to any one of <1> to <3>, wherein the chlorite salt is 1 or more selected from the group consisting of sodium chlorite, potassium chlorite and calcium chlorite, and the first composition contains water and an alcohol as a dispersant.

<5> the chlorine dioxide generating apparatus according to any one of <1> to <4>, wherein the acidic substance is at least 1 selected from the group consisting of citric acid, phosphoric acid, acetic acid and hydrochloric acid, and the second composition contains water and an alcohol as a dispersant.

<6> the chlorine dioxide generating apparatus according to any one of <1> to <5>, wherein the first composition has a pH of 9 or more.

<7> the chlorine dioxide generating apparatus according to any one of <1> to <6>, wherein the first composition contains 1 or more selected from the group consisting of sodium hydroxide, potassium hydroxide, lithium hydroxide, calcium hydroxide, magnesium hydroxide, sodium carbonate and sodium tetraborate.

<8> the chlorine dioxide generating apparatus according to any one of <1> to <7>, wherein the second composition has a pH of 5 or less.

<9> a chlorine dioxide generating apparatus comprising a first composition comprising chlorite and fumed silica and a second composition comprising an acidic material and fumed silica; the device has an inner container containing either the first or second composition and an outer container containing the other of the one composition; the inner container is contained in the outer container; the device further includes a mixing section for mixing the one composition discharged from the inner container with the other composition contained in the outer container to prepare a mixed composition, and a discharge section for discharging the mixed composition mixed in the mixing section.

<10> a chlorine dioxide generating system having a first composition containing chlorite and fumed silica and a second composition containing an acidic substance and fumed silica, and generating chlorine dioxide from a mixed composition of the first composition and the second composition.

Effects of the invention

The chlorine dioxide generator and the chlorine dioxide generating system are suitable for long-term storage, and the mixture generating chlorine dioxide can be stably kept in a using object when in use, so that the effect is generated.

Drawings

Fig. 1 is a schematic diagram showing a first embodiment of a chlorine dioxide generator according to the present invention.

Fig. 2 is a schematic diagram showing a second embodiment of the chlorine dioxide generator according to the present invention.

Fig. 3 is a schematic diagram showing a third embodiment of the chlorine dioxide generator according to the present invention.

Fig. 4 is a diagram showing a gel of a mixed composition of chlorine dioxide generated by spraying with a chlorine dioxide generator according to the present invention.

Detailed Description

The embodiments of the present invention will be described in detail below, but the description of the constituent elements described below is an example (representative example) of the embodiments of the present invention, and the present invention is not limited to the following as long as the gist thereof is not changed. In addition, when the expression "to" is used in the present specification, it is used as an expression including numerical values before and after the expression.

The chlorine dioxide generator of the invention

The first chlorine dioxide generator of the present invention comprises: the liquid container comprises a first container containing a first composition containing chlorite and fumed silica, a second container containing a second composition containing an acidic substance and fumed silica, an outer container housing the first container and the second container, a mixing section for mixing the first composition and the second composition discharged from the first container and the second container to prepare a mixed composition, and a discharge section for discharging the mixed composition mixed in the mixing section.

The second chlorine dioxide generator of the present invention comprises a first composition containing chlorite and fumed silica, and a second composition containing an acidic substance and fumed silica, and has an inner container for containing either the first composition or the second composition, and an outer container for containing the other composition of the one composition, wherein the first container is enclosed in the outer container, and the second chlorine dioxide generator further comprises a mixing section for mixing the one composition discharged from the inner container and the other composition contained in the outer container to prepare a mixed composition, and a discharge section for discharging the mixed composition mixed in the mixing section.

In the present application, the first chlorine dioxide generator of the present invention and the second chlorine dioxide generator of the present invention are referred to as a chlorine dioxide generator of the present invention. The chlorine dioxide generator of the present invention is suitable for long-term storage, and the discharged mixture can be stably retained in a subject to be used to generate chlorine dioxide.

The chlorine dioxide generating system of the invention

The chlorine dioxide generating system of the present invention has a first composition containing chlorite and fumed silica and a second composition containing an acidic substance and fumed silica, and chlorine dioxide is generated from a mixed composition in which the first composition and the second composition are mixed. The chlorine dioxide generation system of the present invention is suitable for long-term storage by separating the first composition from the second composition in advance, and generates chlorine dioxide by mixing and using the first composition and the second composition at the time of use and stably retaining the compositions in the objects to be used. The chlorine dioxide generating system of the present invention can be used in the chlorine dioxide generating apparatus of the present invention, and common components can be applied to each other.

First embodiment

Fig. 1 is a schematic diagram showing a first embodiment of a chlorine dioxide generator according to the present invention. The chlorine dioxide generating device 101 has a first container 11 and a second container 21, which are accommodated in an outer container 31. The inside of the outer container 31 is a mixing portion 41, and the discharge portion 51 is opened by cutting the slit 61.

First container 11

The chlorine dioxide generating device 101 has a first container 11. The first container 11 is a container containing a first composition. The first composition contains chlorite and fumed silica. For example, a bag-like container with four sides closed can be used as the first container 11. The chlorine dioxide generator 101 is sealed in the first container 11 so that the first composition does not leak from the first container 11 during storage.

The first container 11 is provided with a portion that is easily opened by cutting or the like so that the chlorine dioxide generator 101 emits the first composition when in use. For example, by providing a portion with poor heat sealability, a portion with a small thickness, or a region with a narrow adhesive portion, a portion that is easily opened by cutting or the like can be provided. The first container 11 is formed of a stable material even when it is in contact with a first composition containing chlorite, fumed silica, a dispersant thereof (water, alcohol, etc.), or the like. For example, a sheet-like bag using polyolefin such as polyethylene, polypropylene, or the like can be used.

Second container 21

The chlorine dioxide generating device 101 has a second container 21. The second container 21 is a container for containing the second composition. Comprising a second composition comprising an acidic material and fumed silica. The second container 21 may be formed in accordance with the first container 11 except for the point of containing the second composition in place of the first composition. As the second container 21, a bag-like container with four sides closed, or the like can be used. The chlorine dioxide generator 101 is sealed in the second container 21 so that the second composition does not leak from the second container 21 during storage.

The second container 21 is provided with a portion that is easily opened by cutting or the like so that the chlorine dioxide generator 101 emits the second composition when in use. The second container 21 is molded from a stable material even when it is brought into contact with a second composition containing an acidic substance, fumed silica, a dispersant thereof (water, alcohol, etc.), or the like. For example, a sheet-like bag using polyolefin such as polyethylene, polypropylene, or the like can be used.

Outer container 31

The chlorine dioxide generator 101 has an outer container 31. The outer container 31 is a container that accommodates the first container 11 and the second container 21. The outer container 31 may be formed in a sealed bag shape with a projection serving as the discharge portion 51. The outer container 31 is formed of a material which is stable even when it comes into contact with the components constituting the first composition and the second composition, chlorine dioxide generated by the reaction of these components, and the like. For example, a sheet-like bag using polyolefin such as polyethylene, polypropylene, or the like can be used.

Mixing section 41

The mixing section 41 is a place where the first composition and the second composition are mixed. The chlorine dioxide generator 101 is provided around the first container 11 and the second container 21, and the inside of the outer container 31 serves as a mixing section 41. In use, the first composition is discharged from the first container 11 by squeezing or the like from the outside of the outer container 31, and a part of the first container 11 or the second container 21 is ruptured or the like by a change in the internal pressure or the like, and the second composition is discharged from the second container 21 in the outer container 31. The first composition and the second composition discharged from the respective containers are mixed in the outer container 31 to form a mixed composition.

Discharge part 51

The discharge portion 51 is a portion for discharging the mixed composition. When the notch 61 provided in the convex portion of the outer container 31 is torn, an opening portion is provided in the outer container 31, and this opening portion serves as the discharge portion 51. The mixed composition mixed in the mixing section 41 is discharged. The mixed composition comprises chlorite and an acidic material, which react to form a chlorine dioxide generating composition. Thus, chlorine dioxide can be generated at any part of the adhering mixed composition.

Second embodiment

Fig. 2 is a schematic diagram showing a second embodiment of the oxidation generating device according to the present invention. The chlorine dioxide generating device 102 has a first container 12, a second container 22, which are housed in an outer container 32. The propellant is filled in the outer container 32, and the first container 12 and the second container 22 are pressurized. The following configuration was formed: the first container 12 is connected with the pipe 121 inside, the second container 22 is connected with the pipe 221 inside, and the pipe 121 and the pipe 221 can be connected in the inner space of the joint part when the button 62 is pressed; in a state where the button 62 is not pressed, the joint is in a sealed state, and the pipe 121 and the pipe 221 are separated. When the push button 62 is pushed, the pipe 221 is connected to the pipe 121 in the mixing section, and the composition contained in the first container 12 and the second container 22 is pushed out by the pressure caused by the propellant, and the mixed composition is discharged from the discharge section 52.

First container 12

The first container 12 is a pouch shape and contains a first composition. In addition, the first container 12 is accommodated in the outside container 32. A pipe 121 is disposed in the first container 12, and the pipe 121 is connected to the mixing section 42. In a state where the push button 62 is not pushed down, the joint portion between the pipe 121 and the pipe 221 in the mixing section 42 is closed, and the space in the first container 12 and the pipe 121 containing the first composition is separated from the other space such as the second container 22.

The first container 12 is a material which is stable even when it comes into contact with the first composition containing chlorite, fumed silica, a dispersant thereof (water, alcohol, or the like), and the like, and is stable against the pressure in the outer container 32, and is molded from a flexible material. For example, a sheet-like bag using polyolefin such as polyethylene, polypropylene, or the like can be used.

Second container 22

The second container 22 is a pouch shape and contains the second composition. In addition, the second container 22 is accommodated in the outer container 32. A pipe 221 is disposed in the second container, and the pipe 221 is connected to the inside of the mixing section 42. In a state where the push button 62 is not pushed down, the joint portion between the pipe 121 and the pipe 221 in the mixing section 42 is closed, and the space in the second container 22 and the pipe 221 containing the second composition is separated from the other space such as the first container 12.

The second container 22 is a material which is stable even when it comes into contact with a second composition containing chlorite, fumed silica, a dispersant thereof (water, alcohol, or the like), and the like, and is molded from a material having flexibility and being stable in pressure in the outer container 32. For example, a sheet-like bag using polyolefin such as polyethylene, polypropylene, or the like can be used.

Outer container 32

The outer container 32 accommodates the first container 12, the second container 22, and the like. The propellant is filled around the first container 12 and the second container 22 in the outer container 32. When the propellant is filled, a positive pressure is generated in the outer container 32, the button 62 is pressed to close the flow path to the discharge portion 52, and the compositions contained in the first container 12 and the second container 22 are mixed and discharged. The outer vessel 32 is a pressure-resistant vessel that withstands such high pressure. For example, the pressure-resistant container may be formed of a metal container, a resin having high strength, or the like. Further, the pressure-resistant vessel may be suitably formed as a vessel having a multiple structure.

The propellant may be a compressed gas. As the compressed gas, a widely used and relatively safe gas can be suitably used. For example, nitrogen gas, carbon dioxide gas, nitrous oxide gas, a mixed gas thereof, or the like can be used. The pressure in the pressure-resistant container filled with the propellant may be set to a standard pressure of about 0.3 to 1.2MPa at 25 ℃ at room temperature, for example.

Mixing section 42, discharge section 52, and push button 62

The mixing section 42 has a portion for connecting and coupling the pipes 121 and 221. The first composition discharged through the pipe 121 and the second composition discharged through the pipe 221 are mixed in the joint portion, and discharged from the discharge portion 52. The piping to the joint portion in the mixing section 42 may have an on-off valve for adjusting the injection of a check valve (not shown) or the like that is closed by the internal pressure of the discharged composition, a spring structure, or the like. When the push button 62 is opened, the check valves are in a capped state in the respective containers, and the pipe 121 and the pipe 221 are separated from each other, so that the first composition and the second composition are not mixed and cannot be discharged from the discharge portion 52. When the push button 62 is pressed, the check valve is opened, the pipe 121 and the pipe 221 are connected, and the first composition and the second composition are mixed at the connection portion and ejected from the ejection portion 52.

The button 62 is a button provided on the mixing section 42, and is a button for: the valve is in an upward state by an internal pressure, a spring, or the like in a state of not being pushed open, and when in use, the valve is pushed open to open an on-off valve in the regulating mixing portion 42 such as a check valve. The discharge portion 52 is an opening portion connected to the pipe 121, the pipe 221, and a connection portion thereof. When the on-off valve is opened by pressing the button 62, the mixed composition is ejected from the ejection part 52.

The chlorine dioxide generator 102 can be manufactured by using a two-liquid mixing type aerosol product structure. For example, the two-liquid mixed type aerosol product disclosed in Japanese patent laid-open publication No. 2016-160186 can be appropriately referred to for production.

The mixed composition mixed in the mixing section 41 is discharged. The mixed composition comprises chlorite and an acidic material, which react to form a chlorine dioxide generating composition. This allows chlorine dioxide to be generated at any part of the mixed composition.

Third embodiment

Fig. 3 is a schematic diagram showing a third embodiment of the chlorine dioxide generator according to the present invention. The third embodiment is an embodiment of the second chlorine dioxide generator according to the present invention. The chlorine dioxide generator 103 has an inner container 13 accommodated in an outer container 33. Mixing section 43 is formed inside outer container 33, and discharge section 53 is opened by cutting slit 63. The chlorine dioxide generator 103 is based on the structure of the chlorine dioxide generator 101 according to the first embodiment, and has an inner container 13 instead of the first container 11, an outer container 33 instead of the outer container 31 without the second container 21, and the second composition is directly contained in the outer container 33.

The chlorine dioxide generator 103 has an inner container 13. The inner container 13 contains a first composition. The inner container 13 is based on the first container 11, and the first container 11 can be used as the inner container 13.

The chlorine dioxide generator 103 stores the second composition stored in the second container 21 in the chlorine dioxide generator 101 in the outer container 33. In addition, in the outer container 33, the first composition and the second composition are separated by the package of the inner container 13. Further, the second composition contained in the outside container may use the substance contained in the second container 21.

The outer container 33 is a container for containing the first composition and the second composition. In the chlorine dioxide generator 103, the inner container 13 for containing the first composition and the second composition are contained in the outer container 33. That is, the outer container 33 may have the same structure as the outer container 31 except for the point that the second container 21 of the chlorine dioxide generator 101 is not provided and the second composition is directly contained.

The chlorine dioxide generator 103 forms a mixing section 43 in the outer container 33 around the inner container 13, where the first composition and the second composition are mixed. When used, the first composition is discharged from the inner container 13 by squeezing or the like from the outside of the outer container 3 to rupture or the like a part of the inner container 13 due to a change in internal pressure or the like, and is mixed with the second composition in the outer container 33 to form a mixed composition.

The notch 63 provided in the convex portion of the outer container 33 is torn, and the outer container 33 is provided with an opening portion serving as the discharge portion 53. The mixed composition mixed in the mixing section 43 is discharged. The mixed composition comprises chlorite and an acidic material, which react to form a chlorine dioxide generating composition. Thus, chlorine dioxide can be generated by adhering any part of the mixed composition.

The chlorine dioxide generator 103 according to the third embodiment is exemplified by a case where the first composition is contained in the inner container, but the following cases are also included: the second chlorine dioxide generator of the present invention contains the second composition in the inner container and the first composition in the outer container 33 around the second composition, and also generates chlorine dioxide in any part of the adhering and mixed composition. The inner container containing the second composition may be made according to the second container 21.

These chlorine dioxide generators 101 to 103 are suitable for long-term storage because the chlorite and the acidic substance are separated during storage, and thus the reaction is difficult to occur and chlorine dioxide is not generated. The first composition and the second composition contain fumed silica and form gel-like compositions, respectively. When the chlorine dioxide generators 101 to 103 are used, the mixture composition obtained by mixing them is also in the form of a gel, and any of the compositions is also in the form of a gel, and thus uniform mixing is easy. The gel-like substance can be attached to any place and is stable and retained in the subject.

First composition

The chlorine dioxide generator and the chlorine dioxide generating system of the present invention use a first composition containing chlorite and fumed silica. The chlorite salt reacts with the acidic substance of the second composition, thereby generating chlorine dioxide when in use. Further, the inclusion of the pH adjuster makes it difficult to cause a change in color tone during storage and stabilizes the composition. In addition, the gel-like composition is formed by itself, and is also formed into a gel-like state when mixed with the second composition used in the present invention, and adheres to an object to be used in a gel-like state, and exhibits an effect over a long period of time.

Chlorite salt

The first composition contains chlorite. The chlorite used in the first composition can be used alone or in appropriate combination to generate chlorine dioxide by mixing with the second composition. For example, one or more selected from the group consisting of sodium chlorite, potassium chlorite, and calcium chlorite may be used. In particular, sodium chlorite and potassium chlorite are convenient to handle and are suitable.

The concentration of the chlorite in the first composition may be appropriately set in consideration of the degree of generation of chlorine dioxide at the time of use, and the like. For example, the mass ratio of chlorite to the total first composition (mass of chlorite/mass of first composition) may be about 0.1 to 12 mass%. Preferably 0.5 to 10 mass%, 1 to 8 mass%, 2 to 5 mass%.

Fumed silica

The first composition contains fumed silica. In addition, the second composition also contains fumed silica.

Fumed silica is silica produced by thermal decomposition, and is produced, for example, by burning a vaporizable silicon compound such as silicon tetrachloride in a mixture of hydrogen and oxygen and adding water to decompose. Therefore, silanol groups are present on the surface of fumed silica, and the fumed silica generally exhibits hydrophilicity. Examples of the fumed silica include Aerosil (ア, ロジル, registered trademark) available from japan Aerosil (ジル, ア, inc.) and フユ, ムドシリ, HDK (registered trademark) available from asahi Kasei corporation 12527 シ, シリコ, ン. Further, the fumed silica is an inorganic substance, and therefore, the stability in the first composition and the second composition is also excellent.

The fumed silica functions as a thickener, and the first composition, the second composition, and a mixture thereof are made into a gel-like form by containing the fumed silica.

Fumed silica preferably a hydrophobic fumed silica is used. The hydrophobic fumed silica is produced by chemically treating a generally hydrophilic fumed silica with silane, siloxane, or the like, and the treating agent chemically bonds with an oxide on the surface of the generally hydrophilic fumed silica to exhibit hydrophobicity. For example, hydrophobic fumed silica such as Aerosil (registered trademark) available from japan Aerosil corporation is commercially available as the hydrophobic fumed silica. The hydrophobic fumed silica is hardly reacted with chlorite and an acidic substance, and is particularly excellent in stability during storage.

The proportion of the fumed silica contained in the first composition can be appropriately set in consideration of the degree of gelation during storage or use, and the like. For example, the mass ratio of the fumed silica to the entire first composition (mass of fumed silica/mass of first composition) may be about 0 to 5 to 30 mass%. The lower limit is preferably 1% by mass or more and 2% by mass or more. The upper limit thereof may be 25 mass% or less and 20 mass% or less depending on other compositions, gel-like viscosity, and the like. Further, since the hydrophobic fumed silica and the like are used in combination with the alcohol and the adjustment of pH described later, gelation is easily caused, and therefore, 15 mass% or less and 10 mass% or less are preferable.

Dispersing agent

The first composition comprises chlorite, fumed silica, and is dispersed in a dispersant. In the present application, chlorite, an acidic substance, fumed silica, a pH adjuster, and the like are dissolved or dispersed in a state in which they are not dissolved depending on temperature and concentration, but chlorine dioxide can be generated in any state during storage or use.

As the dispersant, water, an organic solvent or the like which is liquid at ordinary temperature can be used. In particular, in order to appropriately ionize the active ingredient and to charge the active ingredient, and thereby facilitate the reaction, it is preferable to use a highly polar liquid, for example, water, alcohol, or the like. The dispersant may be used alone as a liquid, and preferably water and alcohol are used in combination.

In the case of a dispersant containing water, the lower limit of the proportion of the water to the mass of the dispersant as a whole (mass of water/mass of dispersant) is preferably 20 mass% or more, and more preferably 30 mass% or more. The upper limit thereof may be 90 mass% or less, 80 mass% or less, or 70 mass% or less. The remainder may be other dispersant such as alcohol. The water can be refined water, purified water, etc.

The dispersant preferably also contains an alcohol. In the case of a dispersant containing an alcohol, the lower limit of the proportion of the alcohol to the total mass of the dispersant (mass of water/mass of dispersant) is preferably 10 mass% or more, more preferably 20 mass% or more, and still more preferably 30 mass% or more. The upper limit thereof may be 80 mass% or less and 70 mass% or less. The remainder may be water or another dispersant. In particular, when a hydrophobic fumed silica is used, the water dispersibility may be reduced and the concentration of the hydrophobic fumed silica for gelation may be extremely high, but by further containing an alcohol, the dispersibility is excellent and gelation is facilitated. As the alcohol, lower alcohols such as methanol, ethanol, butanol, and propanol can be suitably used. In particular, when the chlorine dioxide generator is used in the vicinity of humans, animals, etc., and also in order to improve the dispersibility of the hydrophobic fumed silica, etc., isopropyl alcohol (IPA) is preferably used in view of safety, etc., from the viewpoint of the combined use.

pH

The first composition may contain only chlorite, fumed silica and a dispersant. Further, a pH adjuster or the like may be contained. The first composition is preferably at least 8 pH, more preferably at least 9 pH, still more preferably at least 9.5 pH, at least 9.8 pH, at least 10.0 pH. When protons are released from the components in the first composition, chlorine dioxide may be generated by reaction with chlorite, but the pH is high, so that the unexpected generation of chlorine dioxide can be suppressed, and the composition is suitable for long-term storage.

The first composition preferably contains 1 or more components selected from sodium hydroxide, potassium hydroxide, lithium hydroxide, calcium hydroxide, magnesium hydroxide, sodium carbonate, sodium tetraborate, and the like. By containing these components, when protons are released from the components in the first composition, the generation of chlorine dioxide by reaction with chlorite can be prevented. These components may be used in combination and mixture as appropriate. The concentration of these components contained in the entire first composition (component/total amount of the first composition) may be 0.005 mass% or more, 0.01 mass% or more, or 0.02 mass% or more. The upper limit thereof may be 5.0 mass% or less, 3.0 mass% or less, or 2.0 mass% or less. These components may be used as the pH adjuster used for the above-mentioned pH adjustment, and may be mixed in an appropriate combination at a concentration at which a predetermined pH is reached.

The first composition is preferably gel-like at least at normal temperature and pressure. When the first composition is in a gel form, it is possible to suppress a difference in physical properties such as viscosity from the second composition and to easily mix the first composition, and the second composition may be in a gel form as a mixed composition, and the mixed composition adheres to an arbitrary place and is difficult to flow. For example, the lower limit of the viscosity of the first composition at 25 ℃ as measured with a rotational viscometer may be 1000 mPas or more and 5000 mPas or more. When the viscosity is too high, mixing becomes difficult, or discharge and ejection become difficult in some cases, so that the upper limit thereof may be 1000 pas or less and 500 pas or less.

The viscosity can be measured, for example, using a rotational viscometer manufactured by BrookField corporation, using a spindle: LV-4, rotational speed: 0.3RPM, measurement temperature: the measurement was carried out at 25 ℃.

The first composition may also contain other ingredients. For example, the composition may contain a colorant, a stabilizer, a preservative, a humectant, and the like in order to clarify the place of use. In general, when a polymer-based thickener having a thickening effect is included, chlorine dioxide is generated by the reaction between the thickener and chlorite during storage, and a string (drawn string) may be drawn out from a discharge portion during use. Therefore, the upper limit of the polymer-based tackifier is set to 2 mass% or less, 1 mass% or less, 0.5 mass% or less, 0.1 mass% or less, and the like, and it is sufficient that these problems do not occur in some cases.

Second composition

The chlorine dioxide generator and the chlorine dioxide generating system of the present invention use the second composition containing the acidic substance and the fumed silica. The acid substance reacts with the chlorite salt of the first composition, thereby generating chlorine dioxide at the time of use. Further, the composition may be in the form of a gel alone or in the form of a gel in a state of being mixed with the second composition used in the present invention, and may adhere to an object to be used in the form of a gel, and the effect is exhibited for a long period of time.

Acidic substance

The second composition contains an acidic material. The acidic substance used in the second composition, which generates chlorine dioxide by mixing with the first composition, may be used alone or in a suitable combination. For example, 1 or more acidic substances selected from the group consisting of citric acid, phosphoric acid, acetic acid, and hydrochloric acid may be used. Among them, weakly acidic organic acids such as citric acid, phosphoric acid, and acetic acid can be suitably used. They are less likely to corrode containers and the like during storage, and are highly safe. Particularly, citric acid or the like which hardly gives off odor during storage or use is preferable.

The concentration of the acidic substance in the second composition may be appropriately set in consideration of the degree of generation of chlorine dioxide at the time of use, and the like. For example, the mass ratio of the acidic substance to the total second composition (mass of chlorite/mass of first composition) may be about 0.5 to 20 mass%. Preferably 1 to 10 mass% and 2 to 5 mass%.

The second composition also contains fumed silica. The fumed silica contained in the first composition can be used as well. In addition, hydrophobic fumed silica is also preferably used in the second composition.

The proportion of the fumed silica contained in the second composition can be appropriately set in consideration of the degree of gelation during storage or use, and the like. For example, the mass ratio of the fumed silica to the entire second composition (mass of fumed silica/mass of second composition) may be about 0.5 to 30 mass%. The lower limit thereof is preferably 1% by mass or more, and may be 2% by mass or more. The upper limit thereof may be 25 mass% or less and 20 mass% or less depending on other compositions, gel-like viscosity, and the like. Further, since gelation is easily caused by the use of an alcohol in combination, it is preferably 15% by mass or less and 10% by mass or less.

The dispersant of the second composition may be the same dispersant as that of the first dispersant. Therefore, as the dispersant, water, isopropyl alcohol, and the like are preferably used in an appropriate mixture. The second composition has a pH determined to a substantial extent by the acidic substance, but when the pH is adjusted, the pH is preferably not more than 5, and more preferably from 1 to 4.

The second composition is preferably in a gel form at least at normal temperature and pressure. When the second composition is in a gel form, it is possible to suppress a difference in physical properties such as viscosity from the first composition and to mix easily, and the mixed composition may be in a gel form and adhere to an arbitrary place and hardly flow. The second composition may have a viscosity at 25 ℃ of 1000 mPas or more and 5000 mPas or more, as measured with a rotational viscometer, for example. If the viscosity is too high, mixing becomes difficult, and discharge and ejection may become difficult, and therefore, the upper limit thereof may be 1000Pa · s or less and 500Pa · s or less.

The second composition may also contain other ingredients. For example, the composition may contain a colorant, a stabilizer, a preservative, a humectant, a perfume, and the like in order to clarify the place of use. In addition, when a polymer-based thickener having a thickening effect is contained, the thread may be pulled out (pulled linear) from the discharge portion during use. Therefore, the upper limit of the polymer-based tackifier is set to 2 mass% or less, 1 mass% or less, 0.5 mass% or less, 0.1 mass% or less, and the like, and it is sufficient that these problems do not occur in some cases.

Mixed composition

The chlorine dioxide generator and the chlorine dioxide generation system of the present invention are configured to generate chlorine dioxide from a mixed composition obtained by mixing a first composition and a second composition. The chlorine dioxide is generated by reacting a chlorite salt of a first composition of the mixed composition with an acidic material. The generated chlorine dioxide is vaporized at an arbitrary place where the mixed composition is adhered and disposed, and is diffused in the vicinity. The chlorine dioxide can sterilize bacteria, viruses, and the like.

The mixing ratio of the first composition and the second composition may be appropriately set in consideration of the kind and concentration of the respective active ingredients, the rate and period of generation of chlorine dioxide, and the like. For example, the mass ratio of the first composition to the second composition (first composition: second composition) may be about 1: 10 to about 10: 1. Preferably, the ratio is 1: 5-5: 1, and 1: 2-2: 1.

The first composition is mixed with the second composition in a mixing section or the like. In the chlorine dioxide generator 101, the composition in the mixing section 41 can be kneaded and mixed with the outer container 31 in the vicinity of the composition. In the chlorine dioxide generator 102, the button 62 is pressed to open the connection part between the pipe 121 and the pipe 221, and the gel-like compositions extruded by the pressures of both containers collide with each other and are mixed. The mixed composition is a gel-like composition, and is discharged from the discharge part and is stable at the place where the mixed composition is adhered. Chlorine dioxide is generated at the holding location.

The mixing of the first composition and the second composition may be carried out in a mixing section, and may be carried out as an apparatus or the like, or may be carried out as a system in which the respective compositions are prepared in advance and mixed at an arbitrary place.

The chlorine dioxide generator and the chlorine dioxide generating system of the present invention are intended to sterilize, disinfect, deodorize, and prevent epidemic, and can be used by attaching a mixed composition in the form of a gel to an arbitrary place or object. For example, the present invention can be used for prevention and treatment of diseases caused by viruses, bacteria, and the like such as a cold at home, in offices, hospitals, transportation facilities, factories, and the like, and can also be used for prevention and treatment of diseases of livestock such as animal houses.

Examples

The present invention will be described in more detail with reference to the following examples, but the present invention is not limited to the following examples without changing the gist thereof.

Reagents and the like

Sodium chlorite: osaka ソ - グ (Kagaku Co., Ltd.)

Citric acid: manufacture of pure forest chemical industry

Fumed silica (1): "A200" manufactured by Japan Aerosil "

Hydrophobic fumed silica (1): "RY 200" manufactured by Japan Aerosil "

Isopropyl alcohol: manufacture of pure forest chemical industry

Experimental example 1

1) The following aqueous sodium chlorite solution (1) and aqueous citric acid solution (1) were prepared.

Aqueous sodium chlorite solution (1)

93.9% by mass of purified water, 6% by mass of fumed silica (1), and 0.1% by mass of sodium chlorite were mixed. The pH of the aqueous sodium chlorite solution (1) was 8.8.

Citric acid aqueous solution (1)

90% by mass of purified water, 6% by mass of fumed silica (1), and 4% by mass of citric acid were mixed. The pH of the aqueous citric acid solution (1) was 2.5.

2) The solutions prepared in 1) above were stored in aerosol cans based on the chlorine dioxide generating device 102 shown in the second embodiment, and a spray test was performed. The citric acid aqueous solution (1) has a slightly low viscosity and a slightly low miscibility, but may be adhered to any place in a gel form.

3) The solution prepared in 1) above was allowed to stand at room temperature for 1 day, and the state was observed. The aqueous sodium chlorite solution (1) turns yellow and when the container is opened, chlorine dioxide smell is present. The following reasons are considered: the pH was slightly low, and protons were evolved due to the hydroxyl groups of the fumed silica (1) and reacted with the protons.

Comparative example 1

A spray test was performed using a citric acid aqueous solution obtained by mixing 95 mass% of purified water, 1 mass% of sodium polyacrylate, and 4 mass% of citric acid, instead of the citric acid aqueous solution (1) of experimental example 1. That is, sodium polyacrylate was mixed in place of the thickening agent fumed silica in the citric acid aqueous solution (1), and the same spray test as in 2) of the above experimental example 1 was performed as the same degree of viscosity. The sprayed gel was linear and difficult to handle.

Experimental example 2

1) The following aqueous sodium chlorite solution (2) and aqueous citric acid solution (2) were prepared.

Aqueous sodium chlorite solution (2)

90.95 mass% of purified water, 3 mass% of sodium chlorite, 0.05 mass% of sodium hydroxide and 6 mass% of fumed silica (1) were mixed. The pH of the aqueous sodium chlorite solution (2) was 10.5.

Citric acid aqueous solution (2)

90% by mass of purified water, 4% by mass of citric acid, and 6% by mass of fumed silica (1) were mixed. The pH of the aqueous citric acid solution (2) was 2.5.

2) The solutions prepared in 1) above were stored in aerosol cans based on the chlorine dioxide generating device 102 shown in the second embodiment, and a spray test was performed. The mixture composition ejected from the ejection part is attached to the ejection tip as a gel-like composition.

Further, generation of chlorine dioxide was confirmed, and generation of chlorine dioxide was also confirmed to continue after 3 days in the opened state.

3) The solution prepared in 1) above was allowed to stand at room temperature for 1 day, and the state was observed. No apparent abnormality was observed.

Experimental example 3

1) The following aqueous sodium chlorite solution (3) and aqueous citric acid solution (3) were prepared.

Aqueous sodium chlorite solution (3)

45.45 mass% of purified water, 45.5 mass% of isopropyl alcohol, 3 mass% of sodium chlorite, 0.05 mass% of sodium hydroxide, and 6 mass% of hydrophobic fumed silica (1) were mixed. The pH of the aqueous sodium chlorite solution (3) is 10.5.

Citric acid aqueous solution (3)

45 mass% of purified water, 45 mass% of isopropyl alcohol, 4 mass% of citric acid, and 6 mass% of hydrophobic fumed silica (1) were mixed. The pH of the aqueous citric acid solution (3) was 2.0.

The chlorous acid aqueous solution (3) and the citric acid aqueous solution (3) each have a viscosity of about 200 pas.

2) The solutions prepared in 1) above were stored in aerosol cans based on the chlorine dioxide generating device 102 shown in the second embodiment, and a spray test was performed. The mixture composition ejected from the ejection part is attached to the ejection tip as a gel-like composition. The gel-like composition does not cause any droplet or the like, and stably adheres to the ejection tip. The appearance of the gel composition thus sprayed is shown in FIG. 4. The example 3 using the hydrophobic fumed silica (1) was stably retained in the adhered object, as compared with the case of using the fumed silica (1) of the examples 1, 2.

In addition, generation of chlorine dioxide was confirmed, and generation of chlorine dioxide was also confirmed to continue after 3 days in the opened state.

3) The solution prepared in 1) above was allowed to stand at room temperature for 1 day, and the state was observed. No apparent abnormality was observed.

Industrial applicability of the invention

The chlorine dioxide generator and the chlorine dioxide generating system of the present invention can be used for the purpose of sterilization, disinfection, sterilization, deodorization, epidemic prevention, etc., by adhering a gel-like composition thereto, and are industrially useful.

Description of the symbols

101. 102, 103 chlorine dioxide generator

11. 12 first container

13 inner side container

121. 221 piping

21. 22 second container

31. 32, 33 outer container

41. 42, 43 mixing part

51. 52, 53 discharge part

61. 63 incision

62 push buttons