JP4654892B2 - Method for inactivating allergens by housing materials - Google Patents

Description

The present invention relates to an allergen inactivation method using an allergen inactivated housing member used for interior and exterior of a house.

  Typical examples of allergens that cause asthma and atopy are mites and pollen. And as a method of removing such allergens in a house, suction removal with a vacuum cleaner and removal with an air cleaner are common. However, when removing allergens with a vacuum cleaner or air cleaner, there is a limit to the amount of allergens that can be sucked with a vacuum cleaner. In this case, since the allergen is removed by adhering to the filter, maintenance of the filter is required. Thus, the method of removing an allergen using a vacuum cleaner or an air cleaner is not necessarily a satisfactory method.

On the other hand, attempts have been made to remove allergens inside and outside the house using members such as building materials of the house. For example, Patent Document 1 proposes a photocatalyst provided on the surface of an interior material or an exterior material. Patent Document 2 proposes a building material whose surface is treated with a compound that inactivates allergens. Thus, by providing a photocatalyst or an allergen inactivating agent on the surface of a housing member such as a building material, the allergen adhering to the surface of the housing member is inactivated with the photocatalyst or the allergen inactivating agent, and the housing is used to It is possible to remove allergens indoors and outdoors.
JP-A-11-349327 JP 2001-212806 A

  However, even if the allergen adheres to the surface of the house member, the allergen and the photocatalyst or allergen inactivator are solid, so that an efficient reaction hardly occurs. Difficult to act. Therefore, there has been a problem that the efficiency in inactivating and removing the allergen is low.

The present invention has been made in view of the above points, and an object thereof is to provide an allergen inactivation method using an allergen-inactivated housing member that can efficiently inactivate and remove allergen by the catalytic action of catalyst particles. It is what.

Allergen inactivating method of the present onset Ming, the catalyst particles 1 having an effect of inactivating allergens, a humectant 3 holding water layer 2 to dissolve the allergen surface or within the catalyst particles 1: humectants 3 (mass ratio) = (0.1-5): 1, and the distance between the catalyst particles 1 and the moisturizing agent 3 is 1 μm or less so that the catalyst particles 1 are in contact with the water layer 2 held by the moisturizing agent 3. proximity to, the allergen inactivating housing member is formed by distributing the surface portion of the housing member 4, using the allergen inactivating housing member, inactivating allergens adhering to the surface of the housing member 4 with the catalyst particles 1 It is characterized by this.

  According to the present invention, the allergen adhering to the surface of the housing member 4 is dissolved in the water layer 2 held by the moisturizing agent 3 and is inactivated by efficiently receiving the catalytic action of the catalyst particles 1 while being dissolved in water. The allergen can be efficiently inactivated and removed by the catalyst particles 1.

In the present invention, in addition to the catalyst particles 1 and humectant 3, the adsorbent 5 to adsorb allergen, Rukoto to distribution in the surface portion of the housing member 4 is preferred. When the catalytic action of inactivation by the catalyst particles 1 cannot catch up, such as when the amount of allergen is large, the allergen can be gradually inactivated by adsorbing the allergen to the adsorbent 5, and the allergen can be more efficiently performed. Can be inactivated.

It is preferable Oite to the onset bright, housing member 4 is wall.

  According to the present invention, when the allergen adheres to the wall of the house, the allergen can be inactivated by the catalytic action of the catalyst particles 1, and the allergen is inactivated and removed using the wall of the house. It is something that can be done.

  According to the present invention, the allergen adhering to the surface of the housing member 4 is dissolved in the water layer 2 held by the moisturizing agent 3 and is efficiently subjected to the allergen inactivating action of the catalyst particles 1 in a state dissolved in water. Yes, allergens can be efficiently inactivated and removed by the catalyst particles 1.

  Hereinafter, the best mode for carrying out the present invention will be described.

  FIG. 1 shows an example of an embodiment of the present invention, in which catalyst particles 1 and a moisturizing agent 3 are attached to the surface of a housing member 4 made of interior or exterior building materials. In attaching the catalyst particles 1 and the moisturizing agent 3 to the surface of the housing member 4, for example, the catalyst particles 1 and the moisturizing agent 3 are dispersed in water or other solvent, and this dispersion is sprayed on the surface of the housing member 4. After coating, it can be performed by drying and evaporating water or other solvent. Thus, by attaching the catalyst particles 1 and the humectant 3 to the surface of the housing member 4, the allergen-inactivated housing member according to the present invention can be obtained.

  Here, as the catalyst particles 1, photocatalysts such as anatase type and brookite type titanium oxide, tungsten oxide, zinc oxide, etc. can be used. Inorganic materials such as iron and organic materials such as phthalocyanine can also be used. In the present invention, the catalyst particles 1 may be anything as long as it has a catalytic action to generate radicals and inactivate allergens.

  As the humectant 3, porous materials such as zeolite, silica gel, alumina, silica and diatomaceous earth, and clay minerals such as kaolin, talc and montmorillonite can be used, but the water layer 2 is formed on the surface or inside. It is not limited to these as long as it can be held. In this way, the water layer 2 is held on the surface or inside the moisturizing agent 3 adhered to the surface of the housing member 4, and the water layer 2 held by the moisturizing agent 3 adsorbs moisture in the air. However, it may be formed by replenishing water with a spray bottle or the like.

  The ratio of the catalyst particles 1 and the moisturizing agent 3 attached to the surface of the housing member 4 is not particularly limited, but the catalyst is in the range of 0.1 to 5 parts by mass with respect to 1 part by mass of the moisturizing agent 3. A ratio in which the particles 1 are mixed is preferable.

  Thus, in the allergen-inactivated housing member of FIG. 1 formed by adhering the catalyst particles 1 and the moisturizing agent 3 to the surface of the housing member 4 as described above, the moisturizing agent 3 has water on the surface or inside thereof. Since the layer 2 is held, the dust 10 containing allergen substances such as mites and pollen tends to adhere to the water layer 2 of the moisturizing agent 3. When dust 10 containing the allergen adheres to the water layer 2 of the moisturizing agent 3, the allergen dissolves in the water layer 2, and the allergen efficiently receives the catalytic action of the catalyst particles 1 in the state of being dissolved in the water of the water layer 2. It will be activated. Here, the allergen is dissolved in the water layer 2 so that the allergen moves to the catalyst particles 1 in the water of the water layer 2 and can be inactivated by the catalytic action of the catalyst particles 1 against the allergen. The radicals generated from the catalyst particles 1 can move in water to the allergen dissolved in the water layer 2, and the allergen can be inactivated by an oxidizing action or the like by the radical. Thus, by attaching the catalyst particles 1 and the moisturizing agent 3 to the surface of the housing member 4, the allergen can be efficiently inactivated and removed by the catalyst particles 1 through the water layer 2.

  FIG. 2 shows another embodiment of the present invention, in which catalyst particles 1 and a humectant 3 are mixed with a resin 11 to prepare a coating agent, and this coating agent is coated on the surface of the housing member 4. Thus, the catalyst particles 1 and the humectant 3 are firmly attached to the surface of the housing member 4 using the resin 11 as a binder. When dust 10 containing allergen substances such as mites and pollen adheres to the water layer 2 of the moisturizing agent 3, the allergen dissolves in the water layer 2 and is deactivated by the catalytic action of the catalyst particles 1 in the same manner as described above. It is.

  Here, when the parts where the catalyst particles 1 and the moisturizing agent 3 exist on the surface of the housing member 4 are biased and the catalyst particles 1 and the moisturizing agent 3 are separated from each other, they are dissolved in the water layer 2 of the moisturizing agent 3. Although the catalyst particles 1 cannot act on the allergen, a coating agent is prepared by dispersing the catalyst particles 1 and the humectant 3 in the resin 11 as described above, and the surface of the housing member 4 is coated with this coating agent. Thus, the catalyst particles 1 and the moisturizing agent 3 can be uniformly attached to the surface of the housing member 4 without uneven distribution, and the catalyst particles 1 and the moisturizing agent 3 can be arranged in the vicinity. The catalyst particles 1 and the moisturizing agent 3 are preferably arranged in the vicinity of the catalyst particles 1 in contact with the water layer 2 held by the moisturizing agent 3, specifically, the catalyst particles. It is preferable that the distance between 1 and the humectant 3 is about 1 μm or less. The distance between the catalyst particles 1 and the humectant 3 can be controlled to about 1 μm or less by adjusting the content of the catalyst particles 1 and the humectant 3 with respect to the resin 11 in the coating agent. It is preferable to adjust the amount of the resin 11 in the range of 0.25 to 24 parts by mass with respect to 1 part by mass of the total of 3.

  When a photocatalyst is used as the catalyst particle 1, it is preferable to use an inorganic resin that is not decomposed by the photocatalyst, such as an acrylic silicon resin, as the resin 11. When a normal temperature catalyst other than a photocatalyst is used as the catalyst particle 1, the type of the resin 11 is not limited, and an organic resin such as a vinyl acetate resin can be used.

  FIG. 3 shows another embodiment of the present invention, in which an adsorbent 5 is attached to the surface of the house member 4 in addition to the catalyst particles 1 and the moisturizing agent 3. In attaching the catalyst particles 1, the humectant 3, and the adsorbent 5 to the surface of the housing member 4, for example, the catalyst particles 1, the humectant 3, and the adsorbent 5 are dispersed in water or other solvent, and this dispersion is used as the house. After spraying on the surface of the member 4, it can be performed by drying and evaporating water or other solvent.

  As the adsorbent 5, clay minerals such as kaolin, talc, montmorillonite, and Sasame clay can be used, but are not particularly limited as long as they adsorb allergens. The adsorbent 5 is preferably hygroscopic, and when a clay mineral is used, an unfired one is preferable. The ratio of the catalyst particles 1, the moisturizing agent 3 and the adsorbent 5 to be attached to the surface of the housing member 4 is not particularly limited, but is 0.1 to 5 parts by mass with respect to 1 part by mass of the moisturizing agent 3. The ratio which mix | blends the catalyst particle 1 in the range and mix | blends the catalyst particle 1 in the range of 0.1-5 mass parts with respect to 1 mass part adsorbent 5 is preferable.

  Thus, by adsorbing the adsorbent 5 in addition to the catalyst particles 1 and the humectant 3 on the surface of the housing member 4, the inactivation of the allergen by the catalyst particles 1 can be performed more efficiently. That is, when dust 10 containing allergen substances such as mites and pollen adheres to the water layer 2 of the moisturizer 3, the allergen dissolves in the water layer 2 and is deactivated by the catalytic action of the catalyst particles 1 in the same manner as described above. However, when the allergen dissolved in the aqueous layer 2 of the humectant 3 is large, it may not catch up with the inactivation of the allergen due to the catalytic action of the catalyst particles 1. When the photocatalytic action is not exerted, the allergen may not be inactivated. In such a case, by adsorbing the adsorbent 5 in addition to the catalyst particles 1 and the moisturizing agent 3 on the surface of the housing member 4, the allergen dissolved in the water layer 2 of the moisturizing agent 3 is adsorbed to the adsorbent 5. The allergen can be inactivated by the catalyst particles 1 slowly or after the day when the photocatalytic action is exerted, and the allergen is inactivated by the catalyst particles 1. Can be performed more efficiently. Therefore, as described above, the adsorbent is preferably as close to the extent that the distance between the catalyst particles 1 and the humectant 3 is 1 μm or less and the catalyst particles 1 are in contact with the water layer 2 of the humectant 3. 5 is also preferably close to the catalyst particles 1 and the humectant 3 with an interval of about 1 μm or less.

  FIG. 4 shows a case where an exterior or interior wall material 4a is used as the housing member 4, and the catalyst particles 1 and the moisturizing agent 3 are adhered to the surface of the wall material 4a to form an allergen-inactivated wall. It is a thing. In this embodiment, the catalyst particles 1 and the moisturizing agent 3 are kneaded into the kneaded clay, and the kneaded clay is applied to the surface of the wall material 4a, so that the catalyst particles 1 and the moisturizing agent 3 are stacked in a thick thickness. It can be formed on the surface of the wall material 4a. In this case, when dust 10 containing allergen substances such as mites and pollen adheres to the water layer 2 of the moisturizer 3, the allergen dissolves in the water layer 2 in the same manner as described above, and the catalytic action of the catalyst particles 1 Is inactivated.

  In the present invention, examples of the housing member 4 include interior or exterior building materials such as wall materials, but building materials other than wall materials such as floor materials, ceiling materials, skirting boards, doors, storage bodies, etc. In addition, examples include materials such as wallpaper, glass, curtains, shojis, and handles other than building materials. The material of the housing member 4 is not limited to wood, and any material such as a plastic sheet such as polyolefin, a plastic molded product, glass, tile, ceramics, metal, paper, or plaster can be used.

  Next, the present invention will be specifically described with reference to examples.

Example 1
Titanium oxide sol as the catalyst particles 1 and diatomaceous earth as the humectant 3 were mixed at a mass ratio of 1: 1 and dispersed in water to prepare an aqueous solution having a concentration of 20% by mass. Then, this aqueous solution is applied to the surface of the rock wool ceiling material at an application amount (including moisture) of 35 g / m ² and dried, whereby catalyst particles 1 (titanium oxide) are formed on the surface of the rock wool ceiling material 4 as shown in FIG. ) And moisturizing agent 3 (diatomaceous earth).

(Example 2)
Titanium oxide sol as catalyst particles 1, diatomaceous earth as moisturizer 3, and acrylic silicon resin as resin 11 are mixed at a mass ratio of 1: 1: 1, and this is dispersed in water to form a 20% strength by weight aqueous solution. A coating agent was prepared. Then, the coating agent is applied to the surface of the wooden flooring material at an application amount (including moisture) of 35 g / m ² and dried, whereby catalyst particles using resin 11 as a binder on the surface of the wooden flooring material 4 as shown in FIG. 1 (titanium oxide) and moisturizing agent 3 (diatomaceous earth) were adhered.

(Example 3)
Titanium oxide sol as the catalyst particles 1, diatomaceous earth as the moisturizer 3, and cocoon clay as the adsorbent 5 are mixed in a mass ratio of 1: 1: 1 and dispersed in water to obtain a 20% strength by weight aqueous solution. Was prepared. And this aqueous solution is apply | coated to the surface of a wooden flooring by 35 g / m < ² > application quantity (it contains water | moisture content), and by drying, catalyst particle | grains 1 (titanium oxide) and the surface of the wooden flooring 4 are shown in FIG. The moisturizing agent 3 (diatomaceous earth) and the adsorbent 5 (Sasame clay) were adhered.

Example 4
Titanium oxide sol as the catalyst particles 1 and diatomaceous earth as the moisturizing agent 3 were kneaded so as to have a mass ratio of 1: 1 to prepare a kneaded clay having a concentration of 5% by mass. Then, by applying this kneaded soil to the surface of the gypsum board wall at a coating amount of 100 g / m ² , catalyst particles 1 (titanium oxide) and moisturizing agent 3 (diatomaceous earth) are applied to the surface of the gypsum board wall 4 as shown in FIG. Thickly adhered.

  By using the products obtained in Examples 1 to 4 in a house, the occurrence of asthma and atopy can be reduced.

It is a schematic sectional drawing which shows an example of embodiment of this invention. It is a schematic sectional drawing which shows an example of other embodiment of this invention. It is a schematic sectional drawing which shows an example of other embodiment of this invention. It is a schematic sectional drawing which shows an example of other embodiment of this invention.

Explanation of symbols

1 catalyst particles 2 water layer 3 humectant 4 housing parts 5 adsorbent

Claims (3)

Catalyst particles having an action to inactivate allergens, and a humectant that retains the water layer in which the allergen is dissolved on the surface or inside, catalyst particles: humectant (mass ratio) = (0.1-5): 1, and below 1μm spacing of the catalyst particles and humectant in proximity to such catalyst particles into contact with the aqueous phase being retained in the humectant, the allergen inactivating housing member by distributing on the surface portion of the housing member forming An allergen inactivation method using a house member , wherein the allergen inactivated house member is used to inactivate the allergen adhering to the surface of the house member with catalyst particles. Other catalyst particles and humectant, the adsorbent for adsorbing an allergen, the allergen inactivation method according to housing member according to claim 1, characterized that you distribution in the surface portion of the housing member. 3. The allergen inactivation method according to claim 1, wherein the housing member is a wall.

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