JP4648427B2 - Building wall material and method for manufacturing the same - Google Patents

Description

  The present invention relates to a building wall material and a method for manufacturing the same.

  A gypsum board is generally known as a building wall material, particularly a building inner wall material. This gypsum board is a board material in which a gypsum board molded into a board shape is sandwiched between two hard papers. The gypsum board contains a lot of hydrates, and these hydrates are exposed to flame. It is said that it is suitable as a refractory material because it releases moisture. However, it is easy to break and there are problems in terms of workability. In addition, it is unfavorable for health because of poor absorption and release of humidity. Furthermore, when the waste gypsum board is disposed of at a disposal site, it is decomposed by lead sulfate-reducing bacteria to release hydrogen disulfide that is harmful to the human body.

By the way, the present applicant / inventor has developed and put into practical use a wall material using a reinforced corrugated board as shown in Patent Documents 1 and 2 below as a building wall material. This wall material has moderate rigidity and shape retention, is more heat-insulating than the air layer formed in the cardboard, and is made of paper, so it absorbs and releases humidity, and in disposal processing Has various advantages, such as naturally returning to the soil.
Japanese Patent No. 3737802 Japanese Patent No. 3817243

  The present invention has the advantages of the reinforced corrugated board developed by the applicant, and can be used as an interior finishing material without requiring other finishing materials such as wallpaper, and a method for manufacturing the same. Is to provide.

  In order to achieve the above object, the present invention is characterized in that the coating layer 4 covers the surface in which a large number of grooves 3c formed by the corrugated cores constituting the multilayer reinforced corrugated board 1 are exposed in parallel. .

  The reinforced corrugated board 1 includes a wall material body 2 in which a plurality of corrugated cores are laminated and bonded in the thickness direction in a direction orthogonal to each other, and the corrugated cores are arranged vertically on the surface of the wall material body 2 perpendicular to the thickness direction. The surface material 3 is laminated as much as possible, and is covered with coating layers 4 and 10 so as to fill a large number of parallel grooves formed by corrugated cores exposed on the surface of the surface material 3. A large number of parallel grooves formed by the corrugated core according to this embodiment are formed in the cut half of the concave portion formed on the cut surface in a direction orthogonal to the corrugated surface of the corrugated core.

  The reinforced corrugated board has a wall surface main body 2 in which a plurality of corrugated cores are laminated and bonded in the thickness direction in a direction orthogonal to each other, and the corrugated core exposed on the surface from which the cardboard 2b of the wall surface main body 2 is peeled off. It is good also as a structure covered with the coating layers 4 and 10 so that many parallel groove parts by a recessed part may be filled up.

  As the coating layers 4 and 10, a coating coating layer mainly composed of plaster called a plastering material is effectively applied.

  Furthermore, in this invention, you may make it the surface of the coating layers 4 and 10 smooth, and can also form the unevenness | corrugation of a required design shape.

  In the method for manufacturing a building wall material according to the present invention, the reinforced corrugated board 1 is formed by the corrugated core of the reinforced corrugated board 1 after the reinforced corrugated board 1 is fixed to the inner wall surface of the building by stapling, nailing or bonding. The coating layers 4 and 10 are applied by a plastering by a plasterer on a surface where a large number of grooves 3c are exposed in parallel.

According to the present invention, the contact surface of the coating layer with the corrugated board is firmly bonded by the anchor effect that the paint bites into the numerous grooves of the corrugated core constituting the corrugated board together with the adhesive effect of the coating layer itself. Therefore, after coating, it can be used effectively as an interior wall material without requiring any other interior finishing material.
The building wall material of the present invention can be widely used as a wall material that is friendly to health and disposal environment as an inner wall material that replaces the conventional gypsum board. It can also be used as an outer wall material.

  Furthermore, in this invention, the surface finish of the coating layers 4 and 10 may be smooth according to the design requested | required of the applicable indoor wall surface, and can also be formed in an unevenness | corrugation.

  The present invention also includes a manufacturing method by mechanical coating such as trowel coating, spraying, or in-mold molding. In addition, after the reinforced corrugated board is built as the wall material, the iron coating may be applied by on-site construction, or it can be provided in advance as a panel in which a coating layer is formed on the uneven surface of the corrugated board in the factory. .

  FIG. 1 shows a first embodiment of the present invention, in which (a) shows a cross-section of a corrugated board before coating, and (b) shows a wall material after coating. First, in (a), a corrugated board 1 includes a wall material body 2 having a predetermined thickness, in which a plurality of corrugated cores 2a each having a predetermined size are laminated and bonded in a thickness direction in a direction orthogonal to each other through a cardboard 2b, and a wall material body. 2 is provided with a surface material 3 laminated so that corrugated cores 3a are arranged in a vertical direction through a cardboard 3b perpendicular to the thickness direction of the main body. The core 3a of the surface material 3 is formed to be larger than the size of the core 2a of the wall surface material body 2, and a groove 3c parallel to the end portion on the surface side of each core 3a is formed.

  In this embodiment, the corrugated board 1 is formed by joining the wall surface material body 2 with the corrugated core orientation in the horizontal direction and the surface material 3 with the corrugated core orientation in the vertical direction. This is a structure for preventing the warpage of the plate 1. In the present embodiment, since the wall material body 2 has a large core density, it mainly shares the function of a strength member as a plate material, and the surface material 3 has a coarse core density and functions as a cushion material. The function as an anchor material with the coating layers 4 and 10 to be described later is strengthened by a large number of parallel grooves 3c formed on the surface.

The wall material body 2 and the surface material 3 forming the corrugated board 1 may have a structure in which the corrugated cores of both members have substantially the same dimensions. Further, in the above embodiment, the corrugated board 1 has a two-layer structure of the wall surface material body 2 and the surface material 3, but it may have a single layer structure of only a wall surface material body structure, or a three-layer structure or more layers. It is good also as a structure.
Although schematically illustrated in the drawing, in practice, it is formed into a size of a standard material such as 90 × 180, 90 × 90, and a thickness of 25 to 30 like a wood panel or the like.

  The material constituting the coating layer 4 is curable and can be selected from water-soluble coating materials having a required viscosity. These materials include mortar and plaster, but plaster is suitable from the viewpoint of indoor humidity control. As is well known, plaster is a composite material made by adding hemp fibers as a reinforcing material to lime such as diatomaceous earth, adding a binder obtained from plants and seaweed, and water as a solvent. It is a finishing material with a moisture function.

  As a coating method, for example, when the coating layer 4 is formed by on-site construction, the corrugated board 1 is pasted to a position that becomes a wall surface in advance through a staple, etc., and then surface smoothing is performed by plastering work such as trowel coating. The coated layer 4 can be obtained. At this time, if the corrugated board 1 is formed so that the groove 3b is positioned horizontally with respect to the floor surface, the coating material can be prevented from dripping due to the biting effect.

  Also, in a factory or the like, the corrugated board 1 is placed in a mold, and a coating material is poured into the groove 3b on the surface thereof, the upper mold is engaged, and the coating layer 4 is precast by drying under pressure. It is also possible to provide it as an interior wall panel.

  FIG. 2 shows a second embodiment of the present invention. In the figure, it is the same as that of the first embodiment except that the surface of the coating layer 10 is formed in an uneven shape.

In the embodiment described above, the groove 3c is formed by cutting the surface material 3 constituting the corrugated board in a direction perpendicular to the corrugated direction of the corrugated core, and cutting the half of the concave portion of the corrugated core arranged in parallel on the cut surface. The part is a groove 3c.
However, as another embodiment, the cardboard on the surface of the wall surface material body 2 constituting the corrugated board is peeled off, and the concave portion exposed on the peeled surface is used as a groove, so that the paint is inserted into the groove. The coating layers 4 and 10 may be formed.

  In the building wall material according to the present invention, the coating layers 4 and 10 are solidified after drying, and are integrated into the corrugated board 1. Therefore, the wall forms a wall such as a coating wall and is breathable. In the case of drying, the internal moisture of the corrugated board 1 is discharged toward the indoor side, and if there is moisture, the moisture is absorbed and the room is kept in a constant humidity atmosphere. In addition, since the corrugated board 1 has an air layer, it naturally has an advantage as a heat insulating material. By using a reinforced corrugated cardboard as the corrugated cardboard 1, it can be used as an outer wall material.

(A), (b) is typical sectional drawing before and behind the coating by 1st Embodiment of the building wall material of this invention. It is a typical sectional view of a 2nd embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Corrugated board 2 Wall material main body 2a, 3a Corrugated core, 2b, 3b Cardboard, 3c Groove part 3 Surface material 4, 10 Coating layer

Claims (5)

The surface number of the grooves formed by the waveform core of the multi-layer cardboard plate is exposed in parallel, in architectural wall member covered with coating layer,
The corrugated board includes a wall material body in which a plurality of corrugated cores are laminated and bonded in a thickness direction in a direction orthogonal to each other, and a corrugated core is laminated on a surface of the wall material body so that the corrugated cores are arranged in a vertical direction perpendicular to the thickness direction. A wall material for construction comprising the surface layer and covered with the coating layer so as to fill a number of parallel grooves formed by corrugated cores exposed on the surface of the surface material. The building wall material according to claim 1, wherein the coating layer is a coating layer mainly composed of plaster. Building wall member according to claim 1 or 2, characterized in that the surface of the coating layer is smoothed. The building wall material according to claim 1 or 2 , wherein irregularities having a required design shape are formed on the surface of the coating layer. The method of manufacturing a building wall member according to any of claims 1 to 4, after securing the cardboard plate to the wall of a building, parallel a number of grooves formed by said waveform core of the step ball plate A method for producing a building wall material, characterized in that the coating layer is applied to the surface exposed to the surface.

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