JP2017115383A - Fixing method for inorganic plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fixing method with which an inorganic plate is fixed on a body so that dropping thereof may be prevented.SOLUTION: An applying surface of an inorganic plate is attached on a body with adhesive agent. A mesh sheet is placed on a decorative surface near joint part of the inorganic plate and the joint part. Resin composition is applied to the mesh sheet. In addition, the mesh sheet placed on the joint part is fixed onto the body with an anchor. Simultaneously, the resin composition is hardened so that the mesh sheet and the inorganic plate are fixed. The inorganic plate fixed on the body by such way is fixed with mesh sheet even in a case where fixation by adhesive agent etc. is not sufficiently provided due to aged deterioration, therefore dropping or damage due to dropping may be prevented. The mesh sheet and hardened resin composition have been applied only to an end part of the inorganic plate, thus no disadvantage in design is provided to the inorganic plate.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a method for fixing an inorganic plate, particularly a thin and large ceramic plate, to a housing such as a wall. More specifically, the present invention is carried out in addition to fixing means for adhering the inorganic plate with an adhesive or the like. It relates to a method to prevent.

  Inorganic plates such as tiles are widely used as interior or exterior materials. The construction of these inorganic plates on the casing is performed by attaching them with an adhesive or mortar. Furthermore, recently, large-sized inorganic plates that can reduce joints, simplify construction and diversify designs, and thin large-sized ceramic plates have been put into practical use and are widely used. However, it is common to use adhesives for the construction.

  When such an inorganic plate, especially a large ceramic plate, is applied to a wall surface or the like, even if peeling or cracking occurs due to aging, it is necessary to suppress the drop and the damage caused by the drop. Many large ceramic plates are thin and light in weight. However, particularly when large ceramic plates are used as exterior materials, a construction system capable of suppressing dropout and damage caused by dropout is important.

  As such a construction system, in addition to sticking with an adhesive or the like, a hole is made in an inorganic plate and fixed with a tapping screw or the like. However, when it has a decorative surface as an interior / exterior material, the hole and screw head may damage the design of the decorative surface. Therefore, it can be said that there is a demand for a construction method that does not impair the design of the decorative surface, particularly a thin and large inorganic plate fixing method.

  In Japanese Patent Application Laid-Open No. 2011-132784 (Patent Document 6), as a method for repairing the tile outer wall, a transparent mesh sheet is stretched over the tile wall surface, the mesh sheet is fixed with an anchor, and a transparent resin is applied thereon. A method is disclosed. The mesh sheet coated with the resin is said to have a transparent finished appearance that is difficult to see. However, this publication only discloses a technique as a repair method.

JP-A-8-68183 JP 11-159102 A Japanese Patent Laying-Open No. 2015-10380 JP-A-6-101321 JP 2013-32667 A JP 2011-132784 A

  An object of this invention is to provide the fixing method which fixes an inorganic board to a housing and can prevent the drop-off | omission.

And the method according to the present invention is a method for fixing an inorganic board having a decorative surface and a construction surface to a casing,
(A) a process of attaching the construction surface of the inorganic plate to the housing with an adhesive;
(B) placing a mesh sheet on the decorative surface and joints near the joints of the inorganic board;
(C) applying a resin composition to the mesh sheet;
(D) fixing the mesh sheet in the joint portion to the housing with an anchor;
(E) curing the resin composition and fixing the mesh sheet and the inorganic plate.

It is a figure of the state by which the several inorganic board was fixed to the housing by the fixing method by one aspect of this invention. It is an expanded sectional view of the anchor 5 vicinity of FIG.

Hereinafter, the present invention will be described with reference to the drawings.
FIG. 1 is a view showing a state in which a plurality of inorganic plates are fixed to a housing by a fixing method according to one embodiment of the present invention. In the drawing, a large-sized inorganic plate 1 is provided with a joint 2 between them and attached to a casing (not shown) with an adhesive, and the joint 2 is coated with a resin composition and fixed to mesh sheets 3 and 4. Exists along the vertical joint and the horizontal joint while covering a part of the large inorganic plate 1, and the mesh sheets 3 and 4 are fixed by anchors 5, 6 and 7.

  FIG. 2 is an enlarged cross-sectional view of the vicinity of the anchor 5 at the joint intersection in FIG. In the figure, the construction surface 12 of the two inorganic plates 1 is attached to the surface 21 of the housing 20 with an adhesive layer 22. Further, the mesh sheet 3 is fixed along the vertical joint, and the mesh sheet 4 is fixed along the horizontal joint with the resin composition on the joint and the decorative surface 11 of the inorganic plate 1 near the joint. These mesh sheets 3 and 4 are fixed to the housing by anchors 5. In the fixing method according to the present invention, the inorganic plate 1 is fixed by two means of the adhesive and the mesh sheet fixed to the casing. Even when the inorganic plate 1 fixed by such two means is not sufficiently fixed by the adhesive due to deterioration over time, there is a fixing means using another mesh sheet, , Can prevent damage caused by dropout. That is, according to the present invention, a double fixing method of the inorganic plate to the housing is provided. Moreover, since the mesh sheet and the cured resin composition are applied only to the end portion of the inorganic plate, the design of the inorganic plate is not greatly impaired.

  Moreover, according to the preferable aspect of this invention, a mesh sheet and a resin composition finally become substantially transparent. In the present invention, transparent means a property of transmitting visible light to such an extent that it does not substantially affect the color and design of the decorative surface of the inorganic board, and more preferably a mesh sheet is present. This means that the visual difference between a cosmetic surface and a non-existing cosmetic surface is practically negligible. Therefore, according to the method of the present invention, there is an advantage that the inorganic plate can be prevented from falling off and damage caused by the dropping without impairing the design of the decorative surface of the inorganic plate.

The inorganic board fixed by the method according to the present invention is made of ceramic, stone or glass, for example. According to one aspect of the present invention, in the present invention, the inorganic plate is preferably used as a flat plate as a finishing material for exterior or interior walls, floors, ceilings, cabinet face materials, and counter finishing materials. Although the size is not limited, the fixing method according to the present invention is preferably applied to a relatively large inorganic plate since it can be a double fixing method to the housing of the inorganic plate as described above. . According to one aspect of the present invention, the inorganic plate has a short side exceeding 300 mm and has an area exceeding 900 cm ² . The length of the short side of the inorganic plate is preferably 600 mm or more, more preferably 900 mm or more. Moreover, according to one aspect of the present invention, the method according to the present invention can be preferably applied to, for example, a large-sized inorganic plate having a thickness of about 3 mm to about 8 mm, desirably about 10 mm.

  The fixing method according to the present invention for the large-sized inorganic plate basically includes the steps (a) to (e). Hereinafter, the fixing method according to the present invention will be described step by step.

Step (a)
This is a process of attaching an inorganic plate to the housing with an adhesive. The adhesive is not limited as long as it can adhere the inorganic plate to the casing, but a synthetic polymer adhesive is preferable. As the synthetic polymer adhesive, epoxy, silicone, urethane, acrylic and the like are preferably used. As these adhesives, any of a liquid or paste adhesive at normal temperature, a hot melt adhesive, and a tape-shaped adhesive can be suitably used.

  In the present invention, the attachment of the construction surface of the inorganic plate 1 and the casing with the adhesive includes a mode in which a base material is interposed between the inorganic plate 1 and the surface 21 of the casing. In this case, for example, when the housing is a pillar such as a steel frame, a plate-like base material is fixed to the housing by a known method, and an inorganic plate is attached to the surface of the base material with an adhesive. For example, when the method of the present invention is applied when reforming an existing wall, the existing wall surface may be used as a base material, and an inorganic plate may be attached thereon using an adhesive. Further, for example, a base adjustment mortar may be applied as a base material to the surface on which the adhesive layer is formed. In any case, the screws and anchor bolts used for fixing are preferably fixed to the housing.

Step (b)
This is a step of placing a mesh sheet on the surface and joints near the joints of the inorganic board. The mesh sheet used in the method according to the present invention is woven from a material capable of exhibiting strength for fixing an inorganic plate to a casing, or a material using a material capable of exhibiting fixing strength by being woven, or a resin composition described later. It uses materials that can demonstrate strength when combined with objects. The mesh sheet in the present invention is preferably a material that is combined with the resin composition and becomes substantially transparent and has a structure capable of realizing it. Preferred materials include resin (polyester, nylon, etc.), glass fiber, synthetic fiber, metal wire, or carbon fiber. According to one aspect of the present invention, the mesh sheet is preferably formed to a roughness of 15 to 100 mesh / inch.

  In the present invention, the mesh sheet is placed not only on the joint but also on the decorative surface of the inorganic board near the joint. The area of the decorative surface covered by the mesh sheet may be appropriately determined in consideration of the size of the inorganic board as long as the inorganic board can be fixed to the housing to prevent the inorganic board from falling off and damage caused by the falling off. However, according to one embodiment, about 5 to 20%, preferably 8% or more and 13% or less of the total area of the decorative surface is covered with the mesh sheet. According to another aspect of the present invention, in the case of a large inorganic plate having a short side length of 600 mm or more, a region of about 1 to 10 cm, preferably 3 cm or more and 5 cm or less from the end of the inorganic plate is covered with a mesh sheet. In this embodiment, the mesh sheet is preferably 20 mm to 210 mm wide, and preferably 20 mm to 100 mm wide. In the present invention, the central portion of the decorative surface is exposed, and the mesh sheet and the resin composition are applied only to the peripheral portion of the decorative surface. Thereby, the color and design of the decorative surface of the inorganic board are maintained, and the double fixing means is applied to the inorganic board. When applying this invention to a large-sized inorganic board, the area | region where the mesh sheet and the resin composition were applied is recognized as a joint, and there is no sense of design discomfort. Moreover, since it is not necessary to apply a mesh sheet and a resin composition to the whole construction surface, the amount of members used can be reduced. Furthermore, when the mesh sheet and the resin composition are transparent, the region where the mesh sheet and the resin composition are applied and the region where the decorative surface is exposed are visually integrated and are difficult to distinguish. It is possible to apply double fixing means to the inorganic board without substantially affecting the color, design, etc. of the decorative surface.

  In the present invention, the mesh sheet is preferably placed in intimate contact with the decorative surface of the inorganic board, but may also be in intimate contact with the surface (21 in FIG. 2) of the casing at the joint.

  The mesh sheet may simply be placed on the surface and joints in the vicinity of the joints of the inorganic plate, but is preferably temporarily fixed at a suitable position by any appropriate means. The mesh sheet may be provided with an adhesive layer and thereby temporarily fixed. Alternatively, as described later, after applying the resin composition to be applied in step (c), the mesh sheet is placed in an order, and the mesh sheet is temporarily fixed by the resin composition before curing. Also good. Alternatively, the step (d) may be performed immediately after placing the mesh sheet on the surface and joints in the vicinity of the joint of the inorganic plate, that is, the mesh sheet may be fixed to the housing with an anchor.

Step (c)
In the step (b), the resin composition is applied to the mesh sheet placed in the vicinity of the joint of the inorganic plate and on the joint. When the resin composition used in this step is cured, the mesh sheet is fixed to the decorative surface of the inorganic board, and in some cases, the mesh sheet is further fixed to the surface of the casing.

  The resin composition used in the present invention preferably penetrates into the mesh sheet, is cured integrally with the mesh sheet, and is preferably fixed to the decorative surface of the inorganic board, and further, is substantially transparent. More preferably, for example, use of a resin having the same refractive index to such an extent that the cured resin composition and the mesh sheet can be seen integrally is conceivable. As the resin composition, a resin composition having excellent weather resistance and fixing strength is used. As such a resin composition, for example, a resin composition selected from the group of acrylic resins, urethane resins, epoxy resins, silicone resins, resins combining these, and silicone-modified resins is preferably used. Is more preferably used.

  According to one aspect of the present invention, an acrylic silicone resin is obtained by copolymerizing a polymerizable monomer having a hydrolyzable silyl group and another polymerizable monomer, and hydrolyzed as a curing agent. A combination using an organotin compound as a dehydration condensation catalyst for a reactive silyl group, or a combination using an isocyanate as a crosslinking agent by introducing a hydroxyl group into a side chain can be used. It is also possible to use a combination in which a polyol or an epoxy curing agent is blended in the main component of the acrylic silicone resin, an isocyanate or an epoxy resin is blended in the curing agent of the acrylic silicone resin, and cured by other curing forms other than the acrylic silicone resin. it can.

  Moreover, according to one aspect of the present invention, an aliphatic urethane resin composition can be used as the urethane resin. As the aliphatic urethane resin composition, a one-component type using a urethane prepolymer having an aliphatic isocyanate group in the molecule, a polyol component (a) having a hydroxyl group in the molecule, and a polyisocyanate having an aliphatic isocyanate group in the molecule Multi-component types using component (b) are included. In the case of the one-pack type, the aliphatic isocyanate group in the urethane prepolymer is cured by reacting with water to form a polyurethane cured product. Moreover, in the case of a multi-liquid type, it hardens | cures when the hydroxyl group in a polyol component (a) and the isocyanate group in a polyisocyanate component (b) react, and it becomes a polyurethane hardened | cured material.

  Examples of the polyol component (a) include polyacryl polyol, polyester polyol, and polycarbonate polyol. Specific examples of the polyacryl polyol include an acrylic polyol obtained by copolymerizing an acrylate having a hydroxyl group with a general-purpose monomer. Specific examples of the polyester polyol include a polyester skeleton derived from sebacic acid and adipic acid, a polyol having a polycaprolactone skeleton derived from caprolactone, and the like. Specific examples of the polycarbonate polyol include a polyol having a polycarbonate skeleton derived from 1,6-hexanediol, 1,5-pentanediol, 3-methyl-1,5-pentanediol, and the like. Furthermore, use of a polyol having a polyester skeleton and a polycarbonate skeleton in one molecule is also possible. In particular, a polyol having a polycarbonate skeleton is preferable because it has high light transmittance and high toughness of a cured product that contributes to an anti-peeling effect.

  Examples of the polyisocyanate component (b) include isophorone diisocyanate (IPDI), hexamethylene diisocyanate (HDI), xylylene diisocyanate (XDI), cyclohexane diisocyanate, 4,4′-methylenebis (cyclohexyl isocyanate), 1,3- Examples thereof include bis (isocyanatomethyl) cyclohexane, lysine diisocyanate, lysine triisocyanate and multimers thereof. Examples of multimers include uretdione-type dimers, burette-type trimers, isocyanurate-type trimers, trimethylolpropane adduct-type trimers, and allophanate-modified isocyanurate-type multimers. Moreover, some isocyanate groups of these polyisocyanate compounds may be modified with other functional groups. When modifying with other functional groups, alkyl alcohol compounds, polyethylene glycol compounds, polypropylene glycol compounds, alkylamine compounds, amino acid compounds, aminosulfonic acid compounds, alkylthiol compounds, and the like can be used. In particular, a burette type HDI trimer, an isocyanurate type HDI trimer, a trimethylolpropane adduct type HDI trimer and derivatives thereof are preferable because they are easily available, have high transparency, and have little yellowing over time. Nurate type HDI trimers are particularly preferred due to their high durability.

  In order to adjust the reaction rate of the polyol component (a) and the polyisocyanate component (b), a curing catalyst may be used as necessary. As the curing catalyst, a conventionally known catalyst such as a metal catalyst, a base catalyst, or an acid catalyst can be used. Examples of the metal catalyst include organic metal catalysts typified by organotin compounds and organozinc compounds, and inorganic metal catalysts such as carboxylic acid metal salts typified by tin laurate and bismuth octylate. And amine catalysts such as tertiary amines such as dimethylcyclohexylamine and 1,8-diazabicyclo [5.4.0] undec-7-ene, and the like. Examples of acid catalysts include phosphoric acid and carboxylic acid. Examples include Bronsted acid catalyst.

  In the present invention, the resin composition preferably penetrates the mesh sheet, is integrated with the mesh sheet, and is fixed to the decorative surface of the inorganic board. Therefore, it is preferable that the resin composition has physical properties such as a viscosity capable of penetrating the mesh sheet, and the adjustment may be performed by, for example, selection of a solvent, resin concentration, and the like. The method of application is not limited, and it may be applied with a brush, spatula, roller or the like.

  According to one aspect of the present invention, in the step (b), before placing the mesh sheet on the decorative surface and joints in the vicinity of the joints of the inorganic board, the above-described resin composition is applied and then the mesh sheet is placed. May be. In this aspect, the applied resin composition preferably penetrates into the mesh sheet placed thereon, but in another aspect, the resin composition substantially penetrates into the mesh sheet. Instead, it may be a mode in which the mesh sheet is fixed to the decorative surface by curing while remaining on the surface. In this embodiment, it is preferable to apply a resin composition on the mesh sheet.

Step (d)
This is a step of fixing the mesh sheet in the joint portion to the housing with an anchor. FIG. 2 is an enlarged cross-sectional view of the vicinity of the anchor 5 of FIG. In this aspect, the anchor 5 fixes the mesh sheet 3 placed along the vertical joint and the mesh sheet 4 placed along the horizontal joint to the housing 20 together. Preferably, an anchor fixing hole is provided at the surface 21 of the casing 20, and the mesh sheet is inserted into the fixing hole through the mesh sheets 3 and 4 so that the mesh sheet is inserted into the fixing hole. 20 is fixed. At the same time, this fixing fixes the large inorganic plate 1 to the housing 20. Here, the anchor 5 is preferably a screw or an anchor bolt.

  The anchor is preferably fixed at the position of the anchor 5, that is, at the intersection of the joints. Furthermore, it is preferable to carry out further at the end of the inorganic plate, that is, the end of the mesh sheet, like the position of the anchor 6 in FIG. Moreover, according to the preferable aspect of this invention, fixation by an anchor may be made in the middle of a joint like the position of the anchor 7 of FIG.

  In the method according to the present invention, the anchoring of the mesh sheet with the anchor may be performed after the step (b) and before the resin composition is applied as the step (c), and the resin in the step (e). The sequence may be performed before or after the composition is cured.

Step (e)
This is a step of curing the resin composition and fixing the mesh sheet and the inorganic plate. Curing is performed by allowing sufficient time for the reaction to proceed when a reaction-curing resin is used. Moreover, when a resin composition hardens | cures because a solvent evaporates, it implements by setting time for drying.

  In a preferred embodiment of the present invention, the mesh sheet and the resin composition become transparent after the resin composition is cured. By making the mesh sheet and the cured resin composition transparent, as described above, a double fixing means is applied to the inorganic board without substantially affecting the color and design of the decorative surface of the inorganic board. Is possible.

1 .... Inorganic plate 2 .... Joint joint 3 .... Mesh sheet placed on vertical joint 4 .... Mesh sheet placed on horizontal joint 5, 6, 7 ... Anchor, 11 .... Make-up surface, 12. ・ Construction surface of inorganic board, 20 ・ ・ Body, 21 ・ ・ Body surface, 22 ・ Adhesive layer

Claims (9)

A method for fixing an inorganic board having a decorative surface and a construction surface to a casing,
(A) a process of attaching the construction surface of the inorganic plate to the housing with an adhesive;
(B) placing a mesh sheet on the decorative surface and joints near the joints of the inorganic board;
(C) applying a resin composition to the mesh sheet;
(D) fixing the mesh sheet in the joint portion to the housing with an anchor;
(E) curing the resin composition and fixing the mesh sheet and the inorganic plate.   The method according to claim 1, wherein in step (d), the mesh tape is fixed to the housing with an anchor at the intersection of joints.   The method according to claim 1, wherein the mesh sheet has a width of 20 mm to 100 mm.   The method according to any one of claims 1 to 3, wherein the resin composition is an acrylic silicone resin or a urethane resin composition.   The method as described in any one of Claims 1-4 implemented in order of a process (a), a process (b), a process (c), a process (d), and a process (e).   The method as described in any one of Claims 1-4 implemented in order of a process (b), a process (d), a process (c), and a process (e) after a process (a).   The method as described in any one of Claims 1-4 implemented in order of a process (c), a process (b), a process (d), and a process (e) after a process (a).   The method according to claim 1, wherein the cured resin composition and the mesh sheet have the same refractive index. The method according to any one of claims 1 to 8, wherein the large-sized inorganic plate has a short side of 900 mm or more and a thickness of up to 15 mm.

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