JP3190464U - Photocatalyst coating material interior cupboard - Google Patents

Abstract

A part of a cupboard can be stored in a deodorized state at a normal temperature. Provided is a wooden storage furniture in which a structure for imparting a humidity control function, a deodorizing function, or a sterilization function to a wooden storage furniture is simplified from the conventional one.
A wooden cupboard furniture having a tableware storage and storage room composed of deodorizing and sterilizing members, comprising: a shelf board surface inside the tableware storage room; and a coucher surface inside the cupboard. It is a photocatalyst coating material-equipped cupboard in which photocatalyst functional members 5 and 6 having a deodorizing function and a sterilizing function, which are members coated with a titanium oxide photocatalyst on an area of 50 to 100%, are attached.
[Selection] Figure 1

Description

The present invention relates to a domestic cupboard having a deodorizing function and a sterilizing function in a tableware storage for storing tableware hygienically at room temperature. The present invention relates to a wooden storage furniture that can be manufactured relatively easily by simplifying a structure for imparting a humidity control function or a deodorizing function to a wooden storage furniture, and improving the workability and the yield.

In general, cooked foods and leftovers are often placed in a refrigerator, but some foods such as grilled fish do not need to be cooled in the refrigerator. May be placed on top of. However, this narrows the top of the table or table, reducing the original function of the table or table by half. In addition, there is a risk of overturning or overturning the tableware with food and side dishes on a table or table in a Japanese housing situation or a family with children. Therefore, in general, such foods are currently stored in a part of the cupboard.

As an example of furniture having a humidity control function or deodorizing function that prevents the generation of wrinkles or the generation of malodors by adjusting the humidity inside the storage section in furniture that stores articles such as cupboards and bookshelves For example, there is “a humidity control agent and furniture in which it is arranged” disclosed in Patent Document 1.

This furniture has an effect on the storage of storage items in furniture, such as storing a humidity control agent made from pulverized charcoal carbonized at 400 to 900 ° C. into crushed grains having an average diameter of 10 to 20 mm in a breathable bag. In addition, a humidity control agent is placed in a place where air permeability is good, and by utilizing the excellent antibacterial, deodorizing and dehumidifying properties and adsorbability of carbonized paulownia wood, especially for clothing and food This is to maintain the humidity control state.

In order to be able to store food and ingredients in a deodorized state at room temperature, a food storage room is provided in a part of the cupboard body, and a photocatalyst 4 made of titanium oxide is applied to the inner wall of this room. Then, the photocatalyst is irradiated with ultraviolet light with black light. Thereby, the odor component from the food in the food storage chamber is adsorbed on the surface of the photocatalyst 4, and the adsorbed odor component is decomposed into an odorless component by the action of the photocatalyst by ultraviolet rays. A photocatalyst made of titanium oxide can be used semi-permanently, so that troublesome replacement like an activated carbon filter is unnecessary, and maintenance can be simplified (see Patent Document 2).

In the learning desk provided with the desk board 1 and the leg which supports this desk board 1, the photocatalyst was arrange | positioned on the surface of the said desk board 1 (refer patent document 3).

Provided a water-based paint composition that can form a paint film that has the function of adsorbing and decomposing harmful VOCs emitted from residential building materials, furniture, wallpaper, etc. In order to do so, the emulsion containing heterophasic structure particles obtained by a multistage emulsion polymerization method and a specific gas molecule adsorption active substance such as fly-pontite are contained as essential components, and other inorganic compounds having photocatalytic activity are also included. An aqueous coating composition containing a gas molecule adsorption active substance or decomposition active substance (see Patent Document 4).

Polyester decorative panels are irritating to the nose and irritating the odor of residual components of styrene monomer, the main raw material of polyester resin paint, and the formalin odor and styrene odor emanating from the base material used. It is said that. By applying urethane paint encapsulating photocatalytic titanium oxide in microcapsules on the surface of the decorative board, not only these malodors are absorbed and decomposed, but also bad odors such as the surrounding ammonia odor are decomposed. Widely used as a surface material for furniture and fittings, or as a door material for toilets, can prevent sick house syndrome (see Patent Document 5).

Provided wooden storage furniture with improved workability and yield in a structure that has a structure for adding moisture conditioning or deodorizing function to wooden storage furniture, which is simplified from the conventional structure and can be manufactured relatively easily. (See Patent Document 6). However, there is no cupboard that has a sterilizing effect using a photocatalyst.

Japanese Patent Laid-Open Nos. 11-569888 and 2007-236749 JP 09-215539 A JP 09-206136 A JP 2004-149686 A JP 2002-137332 A JP 2013-141503 A JP 2001-48538 A JP 09-71418 A

When cooked foods and side dishes are stored in a part of the cupboard, the cupboard itself does not have a deodorizing function. There is a problem that it is stuck and cannot be removed. Therefore, there is a deodorization method using activated carbon, but when the activated carbon has passed a certain period of time, the adsorption amount of the odor component reaches a saturated state, and the deodorization function is significantly lowered. If the adsorbed saturated odor component remains in that state, it may become a source of odor and mold, so that it is necessary to frequently replace the activated carbon.

In addition, if a catalyst carrying a platinum catalyst is installed in a part of the cupboard in a manner other than the above, a deodorizing effect can be obtained by heating it at a high temperature. As the amount of electricity used increases, the environment is not suitable for deodorizing the inside of the cabinet and preserving food.

This purpose was made to solve these problems, and safe and secure cupboards that can store and store food in a deodorized state at room temperature without using activated carbon or platinum catalysts. To provide.
In conventional furniture, since hygienic treatment is not regular and complete, dirt such as germs, ticks, dust, and cigarette smoke adheres and accumulates, and depending on the bacterial species, breeding is also caused. For this reason, various germs propagated by the person touching the furniture may adhere to the body, and the germ may enter the body due to a wound or a meal, and the germ may have an effect on the body.

Moreover, in the thing which has smells, such as tobacco smoke, since the smell adheres to furniture, it gave discomfort to the person who uses the furniture next, especially the user who does not smoke.

In view of the above problems, an object of the present invention is to provide furniture having a simple structure and an excellent sterilizing / deodorizing effect.
In order to place the humidity control agent in a place with good air permeability without affecting the storage of the stored items in the furniture, a dedicated arrangement place or a hole for ventilation is formed in the furniture. It is necessary to apply various processing to each part during manufacturing. For this reason, the structure of the furniture is complicated, workability at the time of manufacture tends to be deteriorated, and manufacture is difficult.

As means for solving the above problems, attention was paid to a functional member of a photocatalyst that has been attracting attention in recent years. When trying to use the functional member for storage furniture, there are the following problems. That is, particularly in the manufacture of wooden storage furniture, in the work of installing or attaching components such as the back plate, after putting the components in the groove of the wall surface member or the ceiling member, pressure or striking force (beating force) on the ceiling member The operation of fixing each member is performed, and corresponding stress and impact are applied to the constituent members.

Further, in order to avoid such inconvenience, after assembling the wooden storage furniture, if the work of pasting the functional member on the back plate or the like which is a constituent member is performed with an adhesive or the like, the storage portion is configured. In addition to the fact that the frame material, etc. that interferes with the work, makes it difficult to work, especially when working with standing furniture, the attached functional members may hang down and require labor to repair. In order to obtain the required quality, there is a problem that the time required for the work becomes long and the workability becomes extremely poor.

Provided wooden storage furniture with improved workability and yield in a structure that has a structure for adding moisture conditioning or deodorizing function to wooden storage furniture, which is simplified from the conventional structure and can be manufactured relatively easily. The purpose is to do.

Another object of the present invention is to achieve the above object by adjusting the humidity in the storage part of the wooden storage furniture by using a functional member of the photocatalyst or deodorizing the storage part or around the storage part. The air environment can be improved and maintained well, and when manufacturing this wooden storage furniture, the functional members should not be damaged or fallen off, and good workability should be ensured. It is to provide a wooden storage furniture that can be manufactured relatively easily.

A wooden cupboard furniture having a tableware storage room composed of deodorized and sterilized members, the surface of the shelf part inside the tableware storage room, and the surface of the counter in the cupboard 50-100% A photocatalyst coating material-equipped cupboard with a photocatalyst functional member having a deodorizing function and a sterilizing function as a member coated with a titanium oxide photocatalyst is attached to the area.

A photocatalytic functional member having a deodorizing function and a sterilizing function, which is a member coated with a titanium oxide photocatalyst, is a liquid synthesized by reacting a hydrogen peroxide solution with titanium hydroxide gel prepared from a titanium solution and a basic solution. A wooden board coated with a titania film coated by applying or drying a liquid containing titanium oxide synthesized by heat treatment at a temperature of ℃ or higher, followed by heat treatment after coating and drying. It has in a board part and a counter part.

A coated wood board coated with a photocatalyst is heated or pressurized at 80 ° C. or higher for a titania film-forming liquid synthesized by allowing hydrogen peroxide to act on titanium hydroxide gel prepared from an aqueous solution containing titanium and a basic substance. A titania film formed by applying or impregnating a titania film forming liquid of titanium oxide fine particles produced by the above to a wooden board substrate and drying or heat-treating it.

In a titania film coat that has been heat-treated after coating and drying, a crystalline titania thin film having a relatively high density is produced at a temperature of 200 ° C. or less by drying or low-temperature heat treatment, and the titania film is excellent in acid resistance, photocatalytic activity, etc. It is composed of a wooden flat plate which is a crystalline titania thin film forming a dense coating film of 1 to 5 μm.

A cupboard storage room is provided in a part of the cupboard main body, a coating material coated with a photocatalyst is attached to the entire surface or a part of the shelf board of the cupboard storage room, and ultraviolet rays are irradiated to the inside of the cupboard storage room. An ultraviolet irradiating means can be attached, and the cupboard part is removable inside the tableware storage room so that the ultraviolet rays can be sufficiently irradiated from the ultraviolet irradiating means.

A wooden storage furniture having a member to which a photocatalytic functional member of a deodorizing function and a sterilizing function is attached to an inner surface side of a tableware storage room which is a part of a cupboard main body, the function being provided on the inner surface side of the tableware storage room It is also possible to attach the sex member to the entire surface or a part thereof and to incorporate it. In the above configuration, odor components from food and tableware are adsorbed on the surface of the photocatalyst applied to the inner wall of the tableware storage room. The adsorbed odor component is decomposed into an odorless component by the action of a photocatalyst by external light or ultraviolet rays.

Wooden storage furniture has a structure in which a functional member of a photocatalyst is attached to the inner surface of the storage unit. It is not necessary to perform various processing on each part at the time of manufacture, and the structure for imparting a sterilizing function, a deodorizing function, and the like to the wooden storage furniture can be simplified from the conventional one. Therefore, it becomes possible to manufacture the wooden storage furniture having such functionality relatively easily.

A typical titania film was prepared by dropping ammonia water (1: 9) into a solution in which a titanium tetrachloride 60% solution was made 500 cc with distilled water as a raw material to precipitate titanium hydroxide. After washing with distilled water, a 30% solution of hydrogen peroxide solution was added and stirred to produce a yellow viscous liquid (sol solution) containing titanium. Immediately after the addition of hydrogen peroxide, oxygen was generated and foamed, but after the excess hydrogen peroxide was decomposed, the foaming subsided, and there was no change even after 6 months at room temperature and normal pressure. The pH was neutral. A wooden board was used as a substrate, and after applying the sol solution, heat treatment was performed at various temperatures. The thickness of the film obtained by 1 to 3 coatings was about 0.1 to 5 μm.

The action of the photocatalyst applied to the inner wall of the tableware storage room allows absorption, decomposition and sterilization of odorous components by external light and ultraviolet rays, so that strong odorous components generated from food in the tableware storage room can be deodorized and cleaned. Can be kept. Since the coated photocatalyst coating film does not deteriorate and can be used semipermanently, the maintenance can be simplified.

By using the coated photocatalyst coating material, it is possible to easily obtain a food product having a deodorizing / sterilizing function and a cupboard with a tableware storage function. By attaching a cupboard, the tableware can be stood and stored, and can be used for sterilization of tableware by light irradiation and prevention of propagation of germs attached to the tableware. A structure that diffusely reflects light irradiation over the entire surface of the tableware storage room can be obtained, a small amount of light irradiation can be efficiently performed, and the deodorizing and sterilizing functions can be made more powerful and effective.

Since the photocatalyst is disposed on the shelf plate and counter surface of the cupboard, the photocatalyst is excited by irradiating the photocatalyst with light that activates the photocatalyst, and the environment where the inside of the shelf is installed Bacteria, mites, dust, cigarette smoke and the like brought in by the above are sterilized and deodorized by the action of a chemical reaction in the excited state of the photocatalyst.

At any time, it is possible to provide hygienic and comfortable furniture. In wooden storage furniture, use the photocatalyst functional member to improve or maintain the air environment around the storage unit or the storage unit, such as adjusting the humidity in the storage unit of the wooden storage furniture or deodorizing it. The wooden storage furniture that can be manufactured relatively easily while ensuring good workability while preventing the functional member from being damaged or falling off in manufacturing the wooden storage furniture The manufacturing method can be provided.

The perspective view which shows one Embodiment of a photocatalyst coating-film material interior cupboard. Explanatory drawing of the photocatalyst film coat part of the tableware storage room of a photocatalyst film material cupboard. A: Perspective view B: Front view The front view of the cupboard which has the storage shelf board part and counter part of a photocatalyst coating-film material cupboard. A: Perspective view B: Front view Explanatory drawing which expanded the photocatalyst coating film of the cupboard. A: State of conventional titanium oxide B: State of titanium oxide of the present application The figure which shows use embodiment with the tableware storage shelf and counter with a photocatalyst coating material. A: Perspective view B: Front view Acetaldehyde decomposition test results in deodorization

1 and 2 show an embodiment of the present invention. FIG. 5 shows a cupboard for storing household tableware, and a tableware storage room that can be stored is formed in a part of the main body of the cupboard, and the tableware storage chamber is opened and closed by a door. The inner wall of the tableware storage chamber was coated with a mixture of a photocatalyst such as titanium oxide (TiO ₂ ) and an adsorbent so as to form a thin film by a sol-gel method, as shown in a sectional view in FIG.

In the food storage room, odors and microorganisms in the tableware storage room generated from food by light irradiation are decomposed, adsorbed and killed, and it is possible to prevent odors and bacteria from sticking to the inner wall of the food storage room.

As shown in FIG. 2, this cupboard is composed of a cupboard storage drawer and a drawer, and is made of wooden decorative plywood as a material. The overall dimensions are 1200 mm wide, 450 mm deep, 1850 mm high, and the width of the tableware storage room is 1200 mm. , A shelf having a depth of 400 mm, a height of 1000 mm, a width of 950 mm, and a depth of 350 mm, and a coated wood board having a photocatalyst coated on the shelf. The titania film produced by applying a titania film coating of fine titanium oxide particles to a wooden board substrate and drying or heat-treating it is a solution of hydrogen peroxide to a titanium hydroxide gel made from an aqueous solution containing titanium and a basic substance. A titania film forming coating liquid synthesized by the action was applied, and after the application, heat treatment was performed at a temperature of 50 ° C. The titanium oxide fine particle titania film coating thus produced was applied to a wooden board substrate and dried or heat-treated.

In a titania film coat that has been heat-treated after coating and drying, a crystalline titania thin film having a relatively high density is formed by drying or low-temperature heat treatment at a temperature of 50 ° C., and a titania film having excellent acid resistance, photocatalytic activity, etc. is obtained. It comprised with the wooden flat plate which is a crystalline titania thin film which has formed the fine coating film of 2 micrometers. According to this, a deodorizing and sterilizing function could be easily provided in the food storage chamber.

In this embodiment, a plate of titania film formed of a wooden plate or the like is provided on the shelf of the food storage room, and by applying this photocatalytic titania film, sunlight or illumination irradiation is diffusely reflected in the tableware storage room. The structure was able to irradiate light such as ultraviolet rays more efficiently, and the effect was increased by exciting the deodorizing action and bactericidal action of the photocatalyst.

In this tableware storage room, shelves made of baskets that can be used to set up tableware can be removed. According to this, when storing and storing tableware and foodstuffs, the cupboard is removed, but when not storing food and foodstuffs, tableware is stored in the cupboard section so that it can be exposed to sunlight or illumination. In addition to the deodorizing function, it was possible to prevent the propagation of germs in the tableware. The cupboards were clean and kept clean.
As an odor test, a decomposition test of acetaldehyde was performed, and as shown in FIG.
Moreover, when the reduction | decrease state of S. aureus was tested, 99% or more of bacteria elimination was possible.

This cupboard consists of a tableware storage shelf, a counter, and a drawer, and is made of solid wood as a material. The overall dimensions are 1200mm wide, 450mm deep, 1850mm high, and the width of the tableware storage room is 1200mm wide. It consists of a 400 mm high, 400 mm high, 950 mm wide, 350 mm deep shelf part, and a 1200 mm wide, 450 mm deep counter part. A coated wood board coated with a photocatalyst on the shelf part and the counter part. The titania film produced by applying a titania film coating of fine titanium oxide particles to a wooden board substrate and drying or heat-treating it is a solution of hydrogen peroxide to a titanium hydroxide gel made from an aqueous solution containing titanium and a basic substance. A titania film forming coating liquid synthesized by the action was applied, and after the application, heat treatment was performed at a temperature of 50 ° C. The titanium oxide fine particle titania film coating thus produced was applied to a wooden board substrate and dried or heat-treated.

The photocatalyst was coated on the shelf and the counter of the cupboard as follows. As the coating material, aqueous ammonia (1: 9) was added dropwise to a solution in which 50 cc of a titanium tetrachloride 60% solution was made 5000 cc with distilled water to precipitate titanium hydroxide. After washing with distilled water, 100 cc of a 30% hydrogen peroxide solution was added and stirred to prepare 700 cc of a yellow viscous liquid (sol solution) containing titanium. There was no change after 6 months at room temperature and pressure. The pH was 6.4 and neutral. A wooden board was used as a substrate, and it was immersed in a sol solution and dried and then heat-treated at various temperatures. The thickness of the film obtained by applying twice was about 0.25 μm.

In this embodiment, a shelf plate made of a basket or the like on which a tableware can be stood is detachably attached to a shelf in the food storage chamber. According to this, when storing and storing tableware, food and ingredients, the cupboard is removed, but when not storing food and ingredients, storing tableware in the cupboard makes it possible to store sunlight or lighting. In addition to the deodorizing function, it was possible to prevent the propagation of germs on the tableware.

A plate of titania film formed with a shelf board of this food storage room and a wooden board using a counter part, etc. is provided, and a photocatalytic titania film coated on this wood is used to create a structure that diffusely reflects in the tableware and food storage room Thus, more efficient deodorization and bactericidal action of the photocatalyst was excited. In addition to the deodorizing function, it was possible to prevent the proliferation of germs on the tableware. The cupboard shelf and the counter were free from odor and kept clean.

This cupboard is composed of a cupboard storage drawer and a drawer, and is made of solid wood as a material. The overall dimensions are 1200 mm in width, 450 mm in depth, and 1700 mm in height. 700 mm wide, 1150 mm wide, 350 mm deep shelf section, 1150 mm wide, 500 mm depth counter section, and a coated wood board with a photocatalyst coated on the half of the shelf section and the entire counter section. The titania film produced by applying a titania film coating of fine titanium oxide particles to a wooden board substrate and drying or heat-treating it is a solution of hydrogen peroxide to a titanium hydroxide gel made from an aqueous solution containing titanium and a basic substance. A titania film forming coating liquid synthesized by the action was applied, and after the application, heat treatment was performed at a temperature of 50 ° C. The titanium oxide fine particle titania film coating thus produced was applied to a wooden board substrate and dried or heat-treated.

In this embodiment, when storing and storing tableware, food and ingredients on the shelf in the food storage room, the cupboard is removed, but when not storing food and ingredients, tableware is stored in the cupboard. As a result, it was possible to irradiate the surface of the tableware with sunlight or illumination light as the counter unit, and to prevent the proliferation of germs other than the deodorizing function.

A plate of titania film formed with a shelf board of this food storage room and a wooden board using a counter part, etc. is provided, and a photocatalytic titania film coated on this wood is used to create a structure that diffusely reflects in the tableware and food storage room Thus, more efficient deodorization and bactericidal action of the photocatalyst was excited. In addition to the deodorizing function, it was possible to prevent the proliferation of germs on the tableware. The cupboard shelf and the counter were free from odor and kept clean.

DESCRIPTION OF SYMBOLS 1 Wooden storage furniture 1 Storage shelf board part 3 Side board 4 Counter part 5 Photocatalyst coat shelf board 6 Photocatalyst coat counter board 7 Lower storage part 8 Sliding door 9 Back board 10 Drawer storage part 11 Glass door part 12 Top plate 13 Front door 14 Storage part 15 Drawer 16 Titanium oxide 17 Base material (painted surface)
18 binder

Claims (3)

A wooden cupboard furniture having a tableware storage room composed of deodorized and sterilized members, the surface of the shelf part inside the tableware storage room, and the surface of the counter in the cupboard 50-100% A photocatalyst coating material-equipped cupboard, wherein a photocatalyst functional member having a deodorizing function and a sterilizing function as a member coated with a titanium oxide photocatalyst is attached to the area of the photocatalyst coating material. A member coated with a titanium oxide photocatalyst is coated / dried or heat-treated after coating / drying a liquid containing titanium oxide that is a heat-treated liquid produced by applying a peroxide to a titanium hydroxide gel prepared from a titanium solution. 2. The photocatalyst coating according to claim 1, wherein the coated wooden board coated with a titania film is used on the whole or part of the counter part of the cupboard and the shelf part in the cupboard storage room. Membrane interior cupboard. In a titania film coat that has been heat-treated after coating and drying, a crystalline titania thin film having a relatively high density is heat-treated by drying or low-temperature heat treatment to obtain a 0.1 to 5 μm dense titania film having excellent acid resistance, photocatalytic activity, etc. 3. The photocatalyst coating material-equipped cupboard according to claim 1, wherein the photocatalyst coating material-equipped cupboard is formed of a wooden flat plate which is a crystalline titania thin film forming a simple coating film.

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