JP2005290975A - Method of fixing tile onto building material and building base material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of fixing tiles onto a building material and a building base material for securing sufficient adhesive strength between the building base material and the tile to be fixed thereonto while reducing the amount of adhesive to be used. <P>SOLUTION: A net-attached tile unit consists of the plurality of tiles having no backings and arranged and fixed onto a meshed net at predetermined joint intervals. The tile unit is fixed onto the base material via adhesive to form the building material, wherein the adhesive is roll-coated onto the base material in such a manner that the adhesive having a thickness of 2mm or less exists between the base material and the back face of the tile. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a building material and a method for fixing a tile on a building base material.

As a method of fixing a plurality of tiles on a building base material, roughly, (1) a smooth metal board having a locking structure for fixing tiles is fixed on the base material, and the above-mentioned locking is performed on the board. A method of hooking a tile having a back foot that can be engaged with the structure, and (2) producing a tile unit in which a plurality of tiles are arranged and fixed on a paper or resin using starch paste or the like at a predetermined joint interval, A method of peeling the paper or resin after fixing the tile surface of the tile unit on which the paper or resin is not fixed to the building base material using an adhesive is performed.
Recently, as a method to reduce the man-hour of the method (2), a tile unit in which a plurality of tiles are arranged and fixed on a mesh net using an adhesive at a predetermined joint interval is installed, and the net of this tile unit is attached to the net. There has also been proposed a method of fixing the surface side onto a building substrate using an adhesive. (For example, refer to Patent Document 1.)

In Patent Document 1, specifically, a net is bonded and fixed to a tile having no back foot or a back foot height of 0.5 mm or less. Thereby, the tile and the net are bonded and fixed easily and reliably.
JP 2000-96802 A

However, in Patent Document 1, when the tile with a net is fixed to a building base material, it is a method in which an adhesive is applied using a conventional method of a comb iron. In order to make it adhere to the surface, a large amount of adhesive having a thickness of about 3 mm is applied.
Therefore, the present invention provides a building material that can sufficiently secure the adhesive strength between a building base material and a tile to be fixed thereon and a method for fixing the tile on the building base material while reducing the amount of adhesive used. For the purpose.

In the present invention, in order to solve the above-described problem, a building material in which a tile unit with a net in which a plurality of tiles having no back foot are arranged and fixed at a predetermined joint interval on a mesh net is fixed to a base material via an adhesive. The building material is characterized in that the adhesive is present at a thickness of 2 mm or less between the base material and the back surface of the tile.
Further, in the present invention, a method of fixing a plurality of tiles on a building base material, the step of roll-applying an adhesive on the base material, and then a plurality of footless nets on a mesh net A step of pressing a net mounting surface side of a tile unit with a net in which tiles are arranged and fixed at a predetermined joint interval against the adhesive application surface of the base material, and the adhesive includes the base material by the pressing step. There is provided a method for fixing a tile on a building substrate, wherein the tile is present at a thickness of 2 mm or less between the tile and the back surface of the tile.
By using the roll coating method, sufficient adhesive strength can be secured with a small amount of adhesive thickness of 2 mm or less. The reason is that a net-like net is fixed between the building base and the back of the tile, but the net effectively provides an anchoring effect, and thin and even adhesion is achieved by roll coating. This is because the agent can be applied, and even if the adhesive thickness is 2 mm or less, it is not necessary to reduce the substantially bonded area.

In a preferred embodiment of the present invention, the surface roughness of the back surface of the tile is 1 to 50 μm.
By doing so, the adhesive is further firmly fixed to the tile.
Here, the surface roughness indicates an arithmetic average roughness Ra defined in JIS B 0601.

  ADVANTAGE OF THE INVENTION According to this invention, adhesive strength of a building base material and the tile fixed on it can fully be ensured, reducing the usage-amount of an adhesive agent.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram showing an outline of the overall construction of a building material according to the present invention. A net-attached tile unit in which a plurality of tiles 2 having no soles are arranged and fixed on a net-like net 1 at a predetermined joint interval is fixed to a wall substrate 5 via an adhesive 4. The adhesive 4 is present between the base material 5 and the back surface of the tile 2 with a thickness of 2 mm or less. The adhesive 4 is fixed so as to cover the mesh net 1.

  Here, the net-attached tile unit can be obtained, for example, by applying a binder onto tiles arranged at predetermined joint intervals and fixing a mesh net from above. The net-attached tile unit can also be obtained by fixing a mesh net with a binder applied in advance on tiles arranged at predetermined joint intervals.

  Although the thickness of the thread | yarn which forms a mesh net is not specifically limited, 0.05-0.25 mm is preferable. By being 0.05 mm or more, when the net-like net 1 is fixed so as to cover the net, the net effectively brings about an anchoring effect. In addition, when the thickness is less than 0.25 mm, preferably less than 0.2 mm, a sufficient amount of adhesive covers the net even if the adhesive thickness is reduced to 2 mm or less, and sufficient adhesive strength is ensured. The In addition, what is necessary is just to make it the thickness of a net | network become the said range, when the thread | yarn which comprises a mesh net | network has a flat cross-sectional shape.

  The mesh shape of the net may be any of square, triangle, rhombus, hexagon and the like. The mesh size of the mesh net is not particularly limited, but is preferably 5 to 20 mm. By being 5 mm or more, it is possible to sufficiently secure the amount of adhesive that reaches the back surface of the tile. Moreover, a net | network brings the effect of anchoring effectively because it is 20 mm or less, Preferably it is 15 mm or less, More preferably, it is less than 10 mm.

  As the material of the mesh net, for example, nylon, polyester, vinylon, acrylic, polypropylene, polyethylene, aramid, cotton, human silk, glass fiber and the like can be suitably used. Moreover, it is preferable that resin processing is given to the net surface. This resin processing prevents misalignment of the mesh and improves workability when adhering to the arranged tiles. Although resin is not specifically limited, For example, an acrylic resin, a melamine resin, etc. can be utilized suitably. Furthermore, it is also possible to add a colorant for matching the color to the adhesive for fixing the tile unit to the substrate.

  The tiles are made of ceramics made of ceramic or glass, and can be used with either glazed tiles or plain tiles. For example, the granulated powder can be obtained by dry press molding in a mold after creating the granulated powder, and applying a glaze on the powder as needed and baking it. In addition, lightweight tiles such as fly ash balloons, shirasu balloons, glass balloons, and the like, and lightweight tiles such as silicon carbide added to the substrate can also be suitably used.

  The back side of the tile should have a shape with no backs. In the molding in the mold, it is preferable to mold the tile surface side of the mold as a steel surface and the tile back surface side of the mold as a resin surface. By making the back surface side of the mold tile the resin surface, the surface of the granulated powder tends to remain on the back surface of the tile after firing, and the surface roughness is easily set to 1 to 50 μm. By doing so, an adhesive agent will be firmly fixed with respect to a tile. Moreover, by making the tile surface side of the mold a steel surface, the tile surface becomes smooth and dirt is difficult to adhere.

  Further, a photocatalytic layer may be provided on the tile surface. By doing so, self-cleaning and antibacterial properties can be imparted to the tile surface. Further, a functional material such as hydrophilicity or antibacterial property can be carried or coated on the tile surface.

  For example, a water-based binder can be suitably used for fixing the tile 2 without a back foot on the mesh net 1. As the kind of the binder, for example, an emulsion binder such as ethylene vinyl acetate, polyacryl, and polyurethane can be used.

  The joint spacing between the tiles is preferably 1 to 20 mm. When it is 1 to 5 mm, the net on the ground is not conspicuous, and when it is 5 to 20 mm, the tile use weight in the building material is reduced, so that the construction on the wall base material becomes easy.

  The tile unit with a net is fixed to the wall base material by applying the adhesive to the wall base material by a roll coating method using a roller and then pressing and fixing the tile unit with the net. By using a roller for applying the adhesive, it is possible to easily apply the adhesive thinly and uniformly. By roll application, the adhesive 4 can have a thickness of 2 mm or less, preferably less than 1 mm, between the substrate 5 and the back surface of the tile 2. The thickness of the adhesive is determined by calculation from the amount of adhesion to the substrate and the application area.

  Adhesives can be organic adhesives such as acrylic, epoxy, urethane, acrylic silicone, and epoxy silicone, or a combination of multiple organic adhesives. If necessary, calcium carbonate, silica, magnesium carbonate, oxidation Suitable with calcium, magnesium oxide, glass balloon, diatomaceous earth, mullite, kaolin, talc, clay, mica, bentonite, fly ash, aluminum silicate, zinc oxide and other inorganic fillers and titania, carbon and other inorganic pigments Available to: These materials are not particularly limited, and known materials are appropriately selected according to desired viscosity and TI value.

  In the case of the roll coating method, the viscosity of the adhesive is measured using a B-type viscometer No. 7 rotor, 1000 Pa · s or less at a rotation speed of 10 rpm, a preferable upper limit value is 500 Pa · s or less, more preferably 300 Pa · s or less. The range is 100 Pa · s or more, preferably 200 Pa · s or more at 7 rotors and 1 rpm. Further preferred adhesive viscosity is BH viscometer No. The range is 20 to 200 Pa · s at 7 rotors and 20 rpm. The preferable TI value is 4 or more and less than 20, and more preferably 5 or more and less than 20. The TI value is the thixo index and is obtained by [viscosity at 1 rpm] / [viscosity at 10 rpm]. In order to apply with a roller, it is desirable to reduce the viscosity. However, by reducing the viscosity, the displacement resistance of the tile becomes a problem. By setting the above range, the adhesive is applied by the roll coating method. It is possible to hold the tile without falling off or peeling even if the tile is bonded to the vertical surface immediately after the adhesive is applied. Furthermore, it becomes possible to form a convex part easily by roll application by setting it as said range.

The adhesive used in the roll coating method can obtain an adhesive having particularly excellent resistance to tile retention immediately after coating, that is, tile peeling and displacement, by setting the yield value to 200 Pa or more. . The yield value is calculated by the CASSON equation from the viscosity characteristics obtained with a cone-plate viscometer at 23 ° C.
CASSON formula: √S = a√D + b
S: Shear stress D: Shear rate a, b: Constant where D = 0
√S = b, and b square is the yield value (S0).
The yield value can grasp the phenomenon in a very low shear region, and the higher the value, the greater the static friction.

  When the above adhesive is attached to the roller and transferred to the surface of the substrate, a part of the adhesive is pulled up to the roller side due to its viscosity, so that a plurality of protrusions or small portions are formed on the surface of the adhesive coating. A pattern composed of wavy convex portions is formed. In such a forming method, a commercially available roller used for coating can be used. More specifically, a sponge roller and a clavicle roller can be suitably used.

  After the adhesive is applied and the convex portions are formed, the tile unit is pressed and fixed, and the adhesive is cured to complete the building material of the present invention. By pressing the tile unit, the net part of the net is filled with an adhesive so as to adhere to almost the entire back surface of the tile. It becomes possible to ensure sufficient adhesive strength. Moreover, since the net | network is embed | buried in the inside of an adhesive bond layer or the trough between a convex part and a convex part in a joint part while the convex part of an adhesive bond layer is hold | maintained, a net | network becomes inconspicuous.

  The method of the present invention can be suitably used for factory production of tiled building materials, renovation of external structures such as building walls, and tiled construction at new construction sites.

The partial fracture | rupture perspective view which shows the outline of the whole structure of the building material which concerns on this invention.

Explanation of symbols

1 ... Mesh net,
2 ... Tile,
3 ... Joints,
4 ... Adhesive,
5 ... Wall base material

Claims (3)

A building material in which a tile unit with a net, in which a plurality of tiles without a back foot are arranged and fixed on a mesh net at a predetermined joint interval, is fixed to a base material via an adhesive, and the adhesive includes the base A building material characterized in that it is present at a thickness of 2 mm or less between the material and the back surface of the tile. 2. The building material according to claim 1, wherein the surface roughness of the tile back surface is an arithmetic average roughness (Ra) defined in JIS B 0601 of 1 to 50 μm. A method of fixing a plurality of tiles on a building base material, the step of roll-applying an adhesive on the base material, and then a plurality of tiles without a back foot on a net-like net with a predetermined joint spacing And a step of pressing the net mounting surface side of the tile unit with net fixed in alignment with the adhesive application surface of the base material, wherein the adhesive includes the base material and the back surface of the tile. A method for fixing tiles on a building base material, wherein the tiles exist with a thickness of 2 mm or less during the period.

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