JP2005325627A - Joint treatment method and joint treatment tape - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a joint treatment method and a joint treatment tape flexibly following to a deformation of a mesh 16 by behavior of a joint section 3 without causing any elongation by discrepancy in the mesh, covering an opening of the joint section 3, making the occurrence of contraction and delamination within the mesh 16 like the conventional putty, making plastic destruction along the joint section 3 and preventing the linear crack from being exposed to finish coating 20 applied to the surface of an elastic coating 15. <P>SOLUTION: A tape 6 formed in the shape of a net of a single layer consisting of warp 7 and the weft 8 is connected on the surface of the joint section 3 of a wall face plates 1 and 1 driven by butting against an external wall or an internal wall of a building, the elastic coating 15 is applied in thickness of an extent to cover the mesh 16 of the tape 6 without applying the putty or the like on the surface of the tape 6, the inside of each mesh 16 consisting of the warp 7 and the weft 8 of the tape 6 is filled with the applied elastic coating 15 to form a void block A, at the same time, both elastic coatings 15 on the front sides of the warp 7 and the weft 8 are connected and combined with each other to become a membranous body B, the void block A and the membranous body B are integrally connected to each other, and when a predetermined time has elapsed after the coating, it is so constituted that a coated film of a drying gelled elastic paint layer can be formed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a joint processing method and a joint processing tape.

The conventional joint processing method is configured as shown in FIG. 7, and after adhering the tape d to the surface of the joint part c of the joint part b of the wall surface material a and the wall material a, the gypsum board is passed through the mesh of the tape d. After applying and filling the putty e, which is a joint treatment material, with a spatula several times, the finish putty f was further applied to the surface to finish (Patent Document 1).
Japanese Utility Model Publication No. 51-12334

In the known example, since the tape d is fixed to the wall surface material a by the adhesive g, the putty e bonding operation to the wall surface material a and the putty e handling operation are performed in one step. The joint cement or putty e is rubbed into the joint part from the stitches of the tape, and the central part of the tape d bends to the back side of the joint part because the pressure when rubbing becomes larger than the adhesive force of the tape d. When the tape d is slack, the reinforcing effect of the tape d is lost, and the left and right wall materials a of the joint portion are opened, and the slack of the tape d is equivalent to the joint portion. Since the joint cement or putty e that has moved to the upper side of the tape and hardened with respect to the movement of the tape d cannot follow, there is a problem that a crack X occurs.
That is, the tape is attached to the surface of the seam, and is applied with a putty to fix the base material, so that the seam of the base material does not open. However, the putty contains 30% by weight of water, and further contains a resin. Therefore, the tape d is formed into a flat weave in a mesh shape with the characteristic that the warp and weft do not stretch, and the warp and weft do not stretch. The crossing part of the weft and the weft is not bundled, resulting in misalignment, and since the putty itself is a non-landing coating material, there are various factors such as lack of elasticity and inability to follow the behavior of the groundwork. This causes a problem of cracking.
In the present application, the joint processing method is devised so that the opening of the joint portion is not exposed to the surface.

In the present invention, the wall materials 1 and 1 are abutted against each other on the outer wall or the inner wall of a building, and the end surfaces of the mating portions 2 of the wall materials 1 and 1 are formed in a substantially right-angled shape and spread in a C shape or a V shape. A joint portion 3 having no ground groove is formed, and a tape 6 formed in a single-layer net shape by warp yarns 7 and weft yarns 8 is adhered to the surface side of the joint portion 3, and putty is not applied to the surface of the tape 6. The elastic coating material 15 is applied to such a thickness that the mesh 16 of the tape 6 is concealed, and the applied elastic coating material 15 is contained in each mesh 16 formed by the warp yarn 7 and the weft yarn 8 of the tape 6. To form a void block A, and the elastic coating material 15 on the surface side of the warp yarn 7 and the weft yarn 8 is connected and joined to form a film-like body B, and the void block A and the membrane-like body B are integrated. After a predetermined time has elapsed after application, a dry gelled elastic paint layer is formed. It is obtained by the joint processing method configured.
In the present invention, the tape 6 and the elastic coating material 15 are configured such that the size of each mesh 16 of the tape 6 and the viscosity of the elastic coating material 15 are relatively set to each mesh 16 with the gap block A formed by the elastic coating material 15. This is a joint processing method that is configured to be formed.
In the present invention, the tape 6 is a joint processing method in which the pressure-sensitive adhesive 10 is applied or impregnated on the entire surface of the warp yarn 7 and the weft yarn 8.
The present invention provides a single-layer warp yarn 7 and a weft yarn 8 that are attached to the surface side of the joint portion 3 formed on the surface side of the mating portion 2 of the wall surface material 1, 1 struck on the outer wall or inner wall of the building. A net-like tape body 9 is formed, the tape body 9 is impregnated with a pressure-sensitive adhesive 10, and a release paper having a width wider than that of the tape body 9 is attached to the surface side of the tape body 9, and the tape body Reference numeral 9 denotes a joint treatment tape configured to form a coating film by the elastic coating material 15 on each mesh 16 of the tape body 9 when the elastic coating material 15 is applied to the surface side of the tape body 9.
In the present invention, the tape main body 9 and the elastic coating material 15 are applied to the respective meshes 16 by the elastic coating material 15 relatively to the size of each mesh 16 of the tape main body 9 and the viscosity of the elastic coating material 15. This is a joint treatment tape configured to form a film.

In the first aspect of the invention, the tape 6 and the elastic coating material 15 are not stretched by misalignment because the gap block A having strong and elastic deformation ability and the film-like body B on the surface side of the tape 6 are connected. , Flexibly following the deformation of the mesh 16 due to the behavior of the joint 3, concealing the opening of the joint 3, causing shrinkage peeling in the mesh 16 like a conventional putty, or plastic fracture along the joint 3 Or linear cracks are not exposed to the finish coating 20 applied to the surface of the elastic coating material 15.
In the invention of claim 2, the elastic coating material 15 forms a flexible coating film layer on the surface of the tape 6 and conceals the opening of the joint portion 3.
In the invention of claim 3, since the misalignment between the warp yarn 7 and the weft yarn 8 of the tape 6 causing cracks is prevented, the tape 6 does not stretch and flexibly follows the deformation of the mesh 16 due to the behavior of the joint portion 3. To do.
In the inventions of claims 4 and 5, it is possible to provide the tape 6 for forming a coating film layer that is more flexible than the elastic coating material 15.

The structure for carrying out the method of the present invention will be described with reference to the drawings. 1 is a wall material composed of plaster board, lightweight cellular concrete board, cement extruded board, asbestos slate board, calcium silicate board, precast concrete board, and others. When the wall materials 1 and 1 are abutted against each other on the outer wall or the inner wall of the building, a joint portion 3 is formed on the surface side of the mating portion 2 of the wall materials 1 and 1.
The shape of the edge on the surface side of the mating portion 2 of the wall material 1 is arbitrary, but since a joint groove extending in the shape of a letter C or V as in the prior art is not formed, the man-hour process is omitted, which is preferable. is there.

Thus, the tape 6 is bonded to the joint portion 3. The tape 6 has a mesh-like tape body 9 in which warp yarns 7 and weft yarns 8 are woven with glass fibers. The warp yarn 7 and the weft yarn 8 of the tape body 9 form a tape adhesive layer formed by dipping the tape body 9 on the pressure sensitive adhesive 10 so that the release paper 11 can be adhesively fixed to the surface side of the tape body 9. Constitute.
The release paper 11 is formed to have the same width as that of the tape main body 9 or a wide width. The pressure-sensitive adhesive 10 uses a water-resistant acrylic, rubber, polyethylene, urethane, or other pressure-sensitive adhesive, and adheres to a wall material at room temperature.

  The tape 6 is wound in the form of a roll 12 like a normal cellophane tape so that the pressure sensitive adhesive 10 is on the inner side (wall side), and is bonded to the wall surface while being stretched from one end. The release paper 11 is peeled off and used. When the tape main body 9 is constituted by a net-like simple substance, there are those that have the release paper 11 and those that do not.

  Thus, the elastic coating material 15 is filled and applied on the surface side of the tape 6 attached to the joint portion 3 of the wall material 1 from above. The elastic coating material 15 is a roller brush in a sol state (liquid form having fluidity and viscosity) on the surface of the tape body 9 that is adhered, and each mesh 16 formed by the warp yarns 7 and the weft yarns 8 of the tape body 9 Apply to a thickness that is concealed. The applied elastic coating material 15 is filled into each mesh 16 formed by the warp yarns 7 and the weft yarns 8 of the tape body 9 to form the gap block A, and the elastic coating material 15 on the surface side of the tape body 9 When the gap block A and the film body B are united and bonded together after a predetermined time has elapsed after coating, the film is dried and gelled (dried coating film). Form a layer.

The gap block A and the film-like body B are also bonded via a pressure-sensitive adhesive 10 that is dipped (impregnated) to prevent misalignment of the warp yarn 7 and the weft yarn 8 of the tape body 9.
That is, the tape main body 9 and the elastic coating material 15 are not stretched by the pressure-sensitive adhesive 10 of the tape main body 9 and become a flexible FRP-like elastic band to conceal the joint portion 3 of the wall material 1.
Since the synthesized tape body 9 and elastic coating material 15 are connected to the gap block A having strong and elastic deformation ability and the film body B on the surface side of the tape body 9, there is no elongation due to misalignment, Since it is strengthened in the shape of FRP, it flexibly follows the deformation of the mesh 16 due to the behavior of the seam, conceals the opening of the joint 3, and causes shrinkage peeling in the mesh 16 like a conventional putty, 3 is not plastically broken, and linear cracks are not exposed to the finish coating 20 applied to the surface of the elastic coating material 15 described later.

In this case, the main component for exerting the elongation ability of the elastic coating material 15 is preferably a resin, not a plasticizer added to the raw material. The elastic coating material 15 is bonded with an epoxy resin system, a modified acrylic emulsion system, an acrylic urethane system, or a silicon-based siloxane (sio), and has good adhesion and strong adhesion with the glass fiber constituting the tape body 9. Select one.
The elastic coating material 15 is preferably soft and flexible even when cured in a dry gel state, and the material that hardens when it is in a dry gel state is the deformation of the mesh 16 of the tape body 9 or the like. It inhibits fiber elongation and loses flexibility, leading to breakage.

That is, the glass fiber of the tape body 9 has a high tensile strength but is weak against shearing. Therefore, in the case of the elastic coating material 15 that is hardened and hardened when it is in a dry gel state, the opening of the joint 3 is the shearing force. It acts and leads to breakage.
Further, when the elastic coating material 15 is in a sol state, the higher the viscosity, the higher the surface tension and the better the formation of the void block A and the film-like body B.
When the planar shape of each mesh 16 is a parallelogram close to a sphere, deformation and distortion due to internal stress of the elastic coating material 15 filled in the mesh 16 and displacement of the joint force of the external force applied to the tape body 9 of the joint 3 In the corner, it is possible to improve the follow-up relaxation dispersion performance in the most balanced and effective manner (FIG. 5).

The relationship between the size of the mesh 16 and the size of the elastic coating material 15 due to the internal strain of the void block A and the joint displacement deformation follow-up relaxation dispersion performance of the external force applied to the tape body 9 of the joint portion 3 is as follows. Since the internal distortion of the air gap block A decreases in inverse proportion to the square of the distance and the deformation follow-up relaxation dispersion performance also increases, if the distance on one side of the mesh 16 is shortened to 1/2, the deformation follow-up relaxation dispersion performance is improved by a factor of four. To do.
For example, it is usually preferable that the thickness of the tape body 9 is 0.1 mm or less and the one side dimension of the mesh 16 is 0.3 mm or less, considering that the finished surface after the seam treatment is not raised.

When the elastic coating material 15 is applied to the tape main body 9 with a roller brush, the elastic coating material 15 having a coating thickness of about 0.2 mm, which is about twice the mesh thickness, adheres to the tape main body 9 due to the surface tension effect, and is applied for a certain period of time. After that, it is gelled by about 70% and remains as a film of about 0.15 mm. Therefore, one side dimension of the mesh 16 and the thickness of the warp 7 and the weft 8 of the tape main body 9 are affected by the surface tension effect of the elastic coating material 15. This is a necessary and sufficient condition for hiding the surface of the main body 9.
Further, when the elastic coating material 15 is applied to the tape body 9 by a single roller and the coating thickness is about 0.2 mm, the glass body of the tape body 9 is more elastic because the suction of the resin of the elastic coating material 15 becomes larger. The pigment of the coating material 15 becomes a dry-out phenomenon in which the surface remains, and the surface tension effect of the elastic coating material 15 is obstructed. However, the tape 6 has the warp yarn 7 and the weft yarn 8 of the tape main body 9 connected to the pressure-sensitive pressure-sensitive adhesive 10. Since it is dipped (impregnated) by about 05 mm, the resin of the elastic coating material 15 does not permeate the entire tape body 9, promotes the surface tension effect, and easily connects the gap block A and the film-like body B. To form a film. Even in the case of the modified acrylic emulsion-based elastic coating material 15, a film of about 0.15 mm is formed in a dry gel state. Therefore, a mesh 16 having a side dimension of 0.3 mm square and a void block A having a thickness of 0.1 mm are formed. When filling and bonding, the surface of the tape body 9 is concealed with a strong coating film having elongation.

  Accordingly, the putty 21 is applied to the surface of the elastic coating material 15, and the finish coating 20 is applied to the surface of the putty 21. The putty 21 is applied as thin as about 0.1 to 0.15 mm so as to eliminate the unevenness of the roller brush painting of the finish coating 20. Therefore, even if a crack of the putty 21 occurs in the finish coating 20, the crack width (opening width) is proportional to the coating thickness, so the putty coating thickness is 0.1 to 0.15 mm or less. Yes and inconspicuous in appearance.

Next, the operation of the embodiment will be described.
When the end surfaces of the wall surface material 1 and the wall surface material 1 are abutted against each other on the outer wall or the inner wall of the building, they are formed into a roll 12 shape on the surface of the joint portion 3 on the front side of the mating portion 2 of the wall surface material 1 and the wall surface material 1 When the tape 6 is pulled out and brought into contact, it is easily pulled out and brought into contact.
Since the pressure-sensitive adhesive 10 is applied (impregnated) to the back side of the tape body 9 of the tape 6, the tape 6 can be directly bonded to the wall materials 1 and 1 when pulled out from the roll 12 together with the release paper 11. After that, the release paper 11 may be peeled off.

Thus, the tape 6 is constructed by weaving warp yarns 7 and weft yarns 8 with glass fibers to have a mesh-like tape body 9, and the warp yarns 7 and weft yarns 8 of the tape body 9 are dipped (impregnated) into the pressure-sensitive adhesive 10. Therefore, when the crossing portions of the warp yarn 7 and the weft yarn 8 are bonded by the pressure-sensitive adhesive 10 and attached to the joint portion 3, and after the attachment, the crossing portion is not misaligned. .
The elastic coating material 15 is filled and applied on the surface side of the tape 6 adhered to the joint portion 3 of the wall material 1 from above.

The elastic coating material 15 is applied on the surface of the tape body 9 to which the elastic coating material 15 is applied so as to hide the mesh 16 of the tape body 9 in a sol state (liquid form having fluidity and viscosity).
The applied elastic coating material 15 is filled in each mesh 16 formed by the warp yarns 7 and the weft yarns 8 of the tape body 9 to form the gap block gap block A, and the surface side of the tape body 9 (the warp yarns 7 and Since the elastic coating material 15 in the upper part of the weft 8 is connected and joined to form a film-like body B, the gap block A and the film-like body B are united and joined together after a predetermined time after application, and the gel is dried. Then, a layer of the elastic coating material 15 is formed.

The tape body 9 and the elastic coating material 15 are respectively synthesized, the tape body 9 faces the shearing force with a strong force, the elastic coating material 15 is elastically deformed to exhibit elastic deformation capability, and the mesh by the behavior of the seam The deformation of 16 is flexibly followed and the opening of the joint portion 3 is concealed.
That is, in the conventional joint processing method, the putty is filled in the joint portion 3, so that the shrinkage and peeling of the putty in the mesh 16 occurs, and the plastic joint breaks along the joint portion 3, which causes a linear crack. In this application, the elastic coating material 15 is filled in the mesh 16 and the tape body 9 is dipped (impregnated) into the pressure-sensitive adhesive 10. Since there is no misalignment of the weft 8, and since the elastic coating material 15 has elasticity unlike the putty and does not undergo plastic failure, the elastic coating material 15 itself does not crack, and the finish coating 20 applied to the surface cracks. Absent.

  Further, the higher the viscosity in the sol state, the higher the surface tension of the elastic coating material 15, and the film formation by the combination of the gap block A and the film-like body B is performed well, and the elastic coating material 15 is applied to the tape body 9. When the 15 is applied, the elastic coating material 15 having a coating thickness of about 0.2 mm, which is approximately twice the mesh thickness due to the surface tension effect, gels by about 70% after a certain period of time, forming a film of about 0.15 mm. Therefore, the tape main body 9 having a thickness of 0.1 mm can be sufficiently concealed.

  Since the tape 6 has the warp yarn 7 and the weft yarn 8 of the tape body 9 dipped (impregnated) by about 0.05 mm with the pressure-sensitive pressure-sensitive adhesive 10, the resin of the elastic coating material 15 penetrates the entire tape body 9. Therefore, when the elastic coating material 15 is applied to the tape body 9 by a single roller and the coating thickness is about 0.2 mm, the surface tension effect of the elastic coating material 15 causes a void block. A and a film-like body B are continuously bonded to form a film easily.

  In this case, one side dimension of the mesh 16 and the thickness of the warp yarn 7 and the weft yarn 8 of the tape body 9 are relatively determined, but even in the case of the modified acrylic emulsion-based elastic coating material 15, it is substantially 0 in the dry gel state. Since a film of about 15 mm is formed, when the mesh 16 having a side dimension of 0.3 mm square and the gap block A having a thickness of 0.1 mm are filled and bonded, the surface of the tape body 9 is concealed with a strong coating film having an elongation. Therefore, it is preferable that one side dimension of the mesh 16 is within 0.3 mm and the thickness of the gap block A is within 0.1 mm.

Then, the putty putty 21 is applied to the surface of the elastic coating material 15 as thin as about 0.1 to 0.15 mm so as to eliminate the unevenness of the roller brush painting of the finish coating 20, and the crack width (opening width) is Since it is proportional to the coating thickness, even if a crack of the putty 21 occurs in the finish coating 20, the crack is 0.1 to 0.15 mm or less of the coating thickness of the putty 21 and is not noticeable in appearance.
In the above embodiment, the term “layer” refers to a state in which thick materials overlap each other, and the “layer” of the elastic coating material 15 refers to the film layer B overlapping the front side of the void block A in the mesh 16. In addition, the “film” of the film-like body B refers to a state in which the surface of the wall surface material 1 is covered, but the configuration is not limited by these expressions.

Sectional drawing which attached the wall material. The figure which shows an example of the manufacture state of a tape. The front view which shows an example of the state which filled the mesh of the tape with the elastic coating material. Sectional drawing of the tape of FIG. The front view which shows an example of the state which filled and apply | coated the elastic coating material on the surface of the tape. Sectional drawing of the state which the wall surface material left | separated on the basis of the joint part. Sectional drawing of the state which the wall material of the prior art example left | separated and the joint part cracked.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Wall material, 2 ... Joint part, 3 ... Joint part, 6 ... Tape, 7 ... Warp, 8 ... Weft, 9 ... Tape main body, 10 ... Pressure sensitive adhesive, 11 ... Release paper, 12 ... Roll, 15 ... Elastic coating material, 16 ... mesh, 20 ... finish coating, 21 ... putty, A ... gap block, B ... film-like body.

Claims (5)

The wall material 1, 1 is abutted against the outer wall or the inner wall of the building, and the end surface of the mating portion 2 of the wall material 1, 1 is formed in a substantially right-angled shape and does not have a joint groove extending in a C shape or a V shape. A joint portion 3 is formed, and a tape 6 formed in a single-layered net shape with warp yarns 7 and weft yarns 8 is bonded to the surface side of the joint portion 3, and an elastic coating material 15 is applied without applying putty on the surface of the tape 6. The elastic coating material 15 is applied to each mesh 16 formed by the warp yarns 7 and the weft yarns 8 of the tape 6 so that the mesh 16 of the tape 6 is concealed. In addition to forming the void block A, the elastic coating material 15 on the surface side of the warp yarn 7 and the weft yarn 8 is connected and connected to form a film-like body B, and the void block A and the film-like body B are integrated and combined. When a predetermined time has elapsed after application, it is configured to form a dry gelled elastic coating layer. Joint processing methods. 2. The tape 6 and the elastic coating material 15 according to claim 1, wherein the size of each mesh 16 of the tape 6 and the viscosity of the elastic coating material 15 are relatively set so that each mesh 16 has a gap block formed by the elastic coating material 15. The joint processing method comprised so that A might be formed. The joint treatment method according to claim 1 or 2, wherein the tape 6 has a warp yarn 7 and a weft yarn 8 coated or impregnated with a pressure-sensitive adhesive 10 over the entire surface. A tape-like tape body made up of single-layer warp yarns 7 and weft yarns 8 that is attached to the surface side of the joint portion 3 formed on the surface side of the mating portion 2 of the wall surface material 1, 1 struck on the outer wall or inner wall of the building. 9, the tape body 9 is impregnated with the pressure sensitive adhesive 10, and a release paper having a width wider than the tape body 9 is attached to the surface side of the tape body 9, and the tape body 9 is the tape body A joint treatment tape configured to form a coating film of the elastic coating material 15 on each mesh 16 of the tape body 9 when the elastic coating material 15 is applied to the surface side of the tape 9. 5. The tape body 9 and the elastic coating material 15 according to claim 4, wherein the size of each mesh 16 of the tape body 9 and the viscosity of the elastic coating material 15 are relative to each mesh 16 by the elastic coating material 15. A joint treatment tape configured to form a coating film.

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