JPH10326991A - Art board for interior - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an art board for interior that can reduce indoor radio interference. SOLUTION: Ferrite fiber or ferrite powder is added to slurry in forming the slurry by kneading plaster with water. An art board for interior is produced by pouring slurry 2 between a pair of card boards 1, cutting and drying it after forming the thickness of it to the predetermined thickness passing through the rollers. The art boards are pasted to the substrate of a wall main body or a ceiling main body. With this, radio wave propagated from an adjacent room or an upper room to an object room is attenuated. In case that the ceiling main body or the wall main body is made of reinforced concrete or steel frames, the radio wave generated inside the object room is absorbed by an electric wave absorbing material inside the art board before the radio wave is reflected by a radio wave reflecting body (steel frames or reinforced concrete) or after reflected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interior material forming the surface of a ceiling or a wall, and more particularly to an interior finish plate made of a plaster board or a cement board.

[0002]

2. Description of the Related Art For example, a plaster board as an interior finishing plate is prepared by mixing a plaster mainly composed of gypsum or the like with water to form a slurry, pouring the slurry between two sheets of cardboard, and passing the slurry between rollers to reduce the thickness. After being cut to a certain size, it is dried to obtain an original plate, and the original plate is manufactured by applying makeup or the like according to the application.

[0003] Then, a wall surface or the like of a room is formed by being attached to a base such as a wall main body.

[0004]

However, since the interior finish plate such as a conventional plaster board does not have the ability to absorb radio waves, electromagnetic waves propagate from the outside or the adjacent room to the target room, or are generated in the room. Such electromagnetic waves are reflected by a radio wave reflector such as a wall body that defines the room, and thus have not been useful for radio wave interference in the room.

[0005] Conventionally, there is a case where the exterior of a building is provided with a radio wave absorbing ability to take measures against radio waves arriving from the outside. However, a special room is formed at most in each room. For this reason, only an electromagnetic wave shielding treatment for embedding a shielding material such as a steel plate or a wire mesh in a wall or the like is performed.

The present invention has been made in view of the above, and has as its object to provide an interior finish plate capable of reducing indoor radio interference.

[0007]

Means for Solving the Problems In order to solve the above-mentioned problems, an interior finish plate of the present invention is characterized in that a radio wave absorber material is mixed in a base material.

Examples of the radio wave absorber material include a resistor such as a conductive fiber, a dielectric loss material such as carbon rubber, carbon-containing urethane and graphite-containing styrene foam, and a magnetic loss material such as ferrite grains.

In the present invention, the electromagnetic wave propagating from the outside or the adjacent room is prevented from being absorbed by the radio wave absorber material in the finishing plate and propagated into the room. Also, the electromagnetic wave generated in the target room is also applied to the radio wave absorber material in the finish plate forming the wall or the like before reaching the radio wave reflector such as the wall body or after being reflected by the radio wave reflector. Absorbed. As a result, indoor electromagnetic waves are reduced.

In addition, since a radio wave absorber material such as a ferrite fiber is mixed into the base material, a finish such as painting is applied to the surface of the finished plate, so that even if the radio wave absorber material appears as a pattern on the surface of the original plate, the surface of the wall surface, etc. There is no such thing that the design of the product deteriorates.

Next, a second aspect of the present invention is the first aspect.
In the above configuration, the radio wave absorber material is at least one of a ferrite fiber and a ferrite powder, and the finish plate is a plaster board or a cement molded plate.

In the present invention, since the finishing plate is a plaster board or a cement molded plate, ferrite fiber or ferrite powder as a radio wave absorber material is contained in plaster or cement slurried or manufactured for the production of the finishing plate. By simply adding and kneading, the finished plate can be provided with a radio wave absorbing ability.

[0013]

Next, embodiments of the present invention will be described with reference to the drawings. In the present embodiment, a plaster board is described as an example of a finish plate for the interior, but the same applies to a cement molded plate.

First, an example of manufacturing a finished plate will be described.
Gypsum plaster (base material) made of calcined gypsum powder or the like is kneaded with water to form a slurry. At this time, ferrite fiber or ferrite powder is added to the slurry and kneaded.

Next, as shown in FIG. 1, the above-mentioned slurry 2 is poured between two sheets of thick paper 1 and then cut and dried after being made constant in thickness between rollers. Thereby, the original plate 3 of the finished plate is manufactured.

Further, depending on the application, the surface of the original plate 3 is pre-painted by printing, painting or the like, or a number of holes for sound absorption are opened. Through the above steps, an interior finish plate is manufactured.

As described above, the interior finish plate of the present embodiment can be simply finished by adding ferrite fiber or the like as a radio wave absorber material at the time of forming a slurry, that is, without adding a new process. The plate can have radio wave absorption capability.

When a ferrite fiber is added, the ferrite fiber also has a role as a reinforcing material for the original sheet. In addition, since the surface of the finishing plate is covered with cardboard, and the surface of the finishing plate is usually subjected to makeup such as painting before or after mounting, there is no design problem.

When the amount of ferrite fiber or the like is increased in order to enhance the radio wave absorption capacity, the weight of the finished plate becomes heavy. Therefore, carbon-containing urethane foam (radio wave absorber material) is partially applied to the original plate. The weight may be reduced by inserting.

Further, as the radio wave absorber material to be mixed,
It is not limited to ferrite fiber or ferrite powder. For example, ferrite grains may be mixed, or a carbon rubber powder or other powdery or fibrous radio wave absorber material may be mixed.

Also, a film-shaped radio wave absorber material such as a resistive film, ferrite rubber, rubber carbon, or the like is applied in advance to the back surface 1a (the surface in contact with the plaster 2) of the two cardboards 1. Alternatively, the radio wave absorber may be provided in a layered manner.

Next, the attachment of the interior finish plate will be described. As shown in FIG. 2, the interior finish plate 4
The interior finish plate is attached to a wall main body 5 or a ceiling main body 6 which is to be a light steel frame or wooden glue base, a concrete block, or an ALC board or the like by directly bonding with a screw or a nail, or by gluing with an adhesive. .

As a result, the electromagnetic waves propagating from the adjacent room or the upper floor to the target room A are absorbed and reduced by the ferrite fibers and the like in the finishing plate. Further, even if the ceiling main body 6 and the wall main body 5 are made of steel frame or reinforced concrete, a radio wave generated in the target room A is a radio wave reflector (steel frame, steel bar, etc.).
Is reflected by the radio wave absorber material in the finishing plate 4 before and after the reflection.

As a result, at least the radio wave interference in the room A due to the electromagnetic waves generated from the electric appliances and the like in the building is reduced. In addition, it is difficult to use the finishing plate 4 on the floor,
By attaching the finishing plate to the ceiling main body of the lower floor, propagation of electromagnetic waves from the lower floor is also reduced.

[0025]

As described above, according to the present invention, there is an effect that the electromagnetic interference in the room is reduced or avoided by the finishing plate for the interior.

In particular, when the invention described in claim 2 is adopted, an interior finish plate having a radio wave absorbing ability can be easily manufactured.

[Brief description of the drawings]

FIG. 1 is a diagram for explaining manufacturing of a plaster board according to an embodiment of the present invention.

FIG. 2 is a diagram for explaining attachment of a plaster board according to the embodiment of the present invention.

[Explanation of symbols]

 1 Cardboard 2 Plaster (base material) 4 Plaster board (finishing material for interior)

Claims (2)

[Claims] 1. A finish plate for an interior, wherein a radio wave absorber material is mixed into a base material. 2. The interior according to claim 1, wherein the radio wave absorber material is at least one of a ferrite fiber and a ferrite powder, and the finish plate is a plaster board or a cement molded plate. Finishing plate.