JPH0427063A - Finishing method for internal wall - Google Patents

Abstract

PURPOSE:To prevent wrinkles or cracks from being generated by providing the wooden surface of a jointed section between a plaster board and a wooden member, with a primer layer with the main component of ethylene-vinyl acetate copolymer, and by lining the jointed section with wall finishing material after the jointed section is coated with putty. CONSTITUTION:Before the work of an internal wall is executed, the column surface 3 of a jointed section between a column 1 and a plaster board 2, and the casing surface of a jointed surface 3 between a casing 7 and the plaster board 2 are coated with primer with the main component of ethylene-vinyl acetate copolymer. After that, the plaster board is fitted on, and after that, the jointed section 3 between the plaster board and the column 1, a jointed section 4 between the plaster boards 2, 2, and a jointed section between the casing 7 and the plaster board 2 are coated with putty 5 with the main component of calcined gypsum, and no rugged sections are contrived to be generated. Then, the plaster board surface, column surface, and jointed surfaces are coated with cloth adhesives, and are lined with the cloth piece of wall finishing material. As a result wrinkles or cracks can be easily prevented from being generated.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a method for finishing interior walls.

(Conventional technology) Conventional methods for finishing walls include the dry method, in which a base material is attached and wall finishing material is applied on top of it, and the other is the dry method, in which a base material made of soil and water is coated with lime, etc. There is a wet method that involves applying a slurry with water. Since the dry method requires a shorter construction period and is easier to construct, recent walls are mainly finished using the dry method.

As described in Japanese Utility Model Publication No. 63-46579, gypsum board is mainly used as the base material for this dry method.

To briefly explain this dry method using plasterboard as a base, plasterboard is attached to a wall surrounded by columns, ceiling beams, floor beams, and the joints between this plasterboard and columns, ceiling beams, floor beams, etc. There is also the true wall method, in which putty is applied to the joints between plasterboards and wall finishing material is applied on top of this, and plasterboard is pasted on top of columns, ceiling beams, floor beams, etc., or it is placed at the same height as the columns, etc. There is a large wall method in which plasterboard is attached to the wall, putty is applied to the joints between the plasterboards and between the plasterboard and pillars, etc., and a wall finishing material is attached on top of this.

(Problems to be Solved by the Invention) In the former Makabe method, wooden materials such as columns, ceiling beams, floor beams, etc. are joined to gypsum boards. Also, in the large wall method, wooden materials are used for picture frames and the like at openings such as windows and doors, and here too, there are joints between the wooden materials and the gypsum board. Furthermore, in the large wall method in which the gypsum board is installed flush with the pillars, etc., a joint between the pillars, etc. and the gypsum board occurs.

In this way, when using a dry method wall that uses gypsum board, there is always a joint between the gypsum board and the wood material.Then, putty is applied to the joint between the gypsum board and the wood material, and a wall such as cloth is applied on top of this. On walls with finishing materials, as the putty dries and hardens, cracks gradually appear at the boundary between the wood surface and the putty, often causing wrinkles and cracks on the surface of wall finishing materials such as cloth. .

The inventor investigated this phenomenon. Regarding the cause,
Although it was not clearly determined, it is thought that this is due to insufficient adhesion between the putty and the wood material.

An object of the present invention is to propose a method for finishing an inner wall that does not cause wrinkles or cracks that occur at the joint between the wooden material surface and the gypsum board.

(Means for Solving the Problems) The present invention has been made to solve the above problems and achieve the above objects. A primer layer containing ethylene-vinyl acetate copolymer as a main component is provided on the wooden surface of the joint between the plasterboard and the wooden material, putty is applied to the joint between the wooden material and the plasterboard, and then this Wall finishing material is applied on top.

In the present invention, wood materials are materials made of wood such as wood, plywood, and verticle board, and wooden parts that are joined to plasterboard include columns, studs, pillars, ceiling beams, and floor beams. decorative materials such as picture frames, surrounds, lintels, lintels, sills, caps, bookcases, etc. for openings such as windows and doors.

In the present invention, wall finishing materials include all conventionally used wall finishing materials. Such wall finishing materials include wall materials such as synthetic resin films such as vinyl chloride resin films, cloth, and paper.

In the present invention, the primer containing an ethylene-vinyl acetate copolymer as a main component is a primer obtained by dissolving an ethylene-vinyl acetate copolymer in water, and various products are commercially available. For example, a commercially available primer containing ethylene-vinyl acetate copolymer as a main component is suitable as a primer applied to improve the adhesion of cement products. Such products include plastic tanks made by Nitto Gypsum Board.

In the present invention, the primer layer containing ethylene-vinyl acetate copolymer as a main component may be provided on the wooden surface of the joint between the gypsum board and the wooden material at any time before the putty is applied. For example, before installing it on a pillar or picture frame, a primer may be applied in advance to the wooden surface of the pillar or picture frame (of course, it may be the entire surface) at the joint with the plasterboard. Further, after installing wooden materials such as pillars and picture frames to a building, a primer may be applied before applying putty.

In the present invention, putty refers to something that is applied to the joints of gypsum boards or the joints between gypsum boards and wood materials, and this putty is applied to correct unevenness in the joints, and the wall finishing material that is pasted on top of this putty is used to correct unevenness in the joints. This prevents the surface from becoming uneven. In the present invention, all conventionally used putties can be used. The main types of putty are dry putty, which is a mixture of plaster, lime, etc. and water, and is dried after being applied, and putty, which is a mixture of calcined gypsum and water, which is a mixture of calcined gypsum and water that reacts. There is a reaction type that causes solidification.

(Function) In the present invention, a primer layer mainly composed of ethylene-vinyl acetate copolymer, which has good adhesiveness to putty, is provided on the surface of the wood material at the joint between the gypsum board and the wood material. Even if putty is applied to the joint between the plasterboard and the wooden material, the putty will not crack. Therefore, even if you apply wall finishing material on top of this, the finishing material may wrinkle or
No cracks will appear.

(Example) Next, an example will be described.

FIG. 1 is an explanatory diagram for explaining one embodiment of the present invention, and FIG. 2 is an explanatory diagram for explaining another embodiment.

In FIG. 1, 1 is a column.

2 is a gypsum board, and 3 is a joint between this gypsum board and the pillar 1.

4 is a joint between two plasterboards.

5 is putty 6 is a cross.

7 is the frame of the window.

To explain the construction method and effect, before constructing the inner wall, apply ethylene-vinyl acetate copolymer to the column surface 3 at the joint between the pillar 1 and the gypsum board and the frame surface at the joint between the frame 7 and the gypsum board. Apply a primer whose main ingredient is coalescence (Buratatsu, manufactured by Nitto Gypsum Board).

Next, after installing the gypsum board, the joint 3 between the gypsum board 2 and the column, the joint 4 between the gypsum board 2 and the gypsum board 2
A putty 5 containing plaster of paris as a main component is applied to the joint between the frame 7 and the gypsum board 2 to make this surface smooth.

Next, apply cloth adhesive to the plasterboard surface, column surfaces, and joints, and apply cloth, which is a wall finishing material.

In this way, if you apply putty 5 after applying the primer,
Since the adhesiveness between the primer and the putty 5 is good, cracks will not appear between the primer and putty 5. Therefore, on top of this, cross 6
Even if the cloth is pasted, the cloth will not crack or wrinkle at the joint between the wooden material such as the pillar 1 and the gypsum board 2.

Next, another embodiment shown in FIG. 2 will be described.

In the embodiment shown in FIG. 2, the entire surface of the column is pre-coated with primer, so there is no need to apply primer to the column at the construction site. Other details are the same as in Figure 1.

Next, the following test was conducted to evaluate the adhesion between the primer coated surface and the putty.

Test 1 A primer (70% aqueous solution of ethylene-vinyl acetate copolymer, Bratac, manufactured by Futanito Gypsum Board Co., Ltd.) was applied to a 12 mm plywood board, and a dry putty was applied. A paper wall finishing material was glued on top of it, and an adhesion test was conducted between this finishing material and plywood, and all five test specimens showed that the putty was broken, and the bond between the plywood and putty was There was no separation at the border.

Similar results were obtained even when the type of putty was changed to a hardening type.

This test result shows that the adhesiveness between the ethylene-vinyl acetate copolymer and the putty is good.

Next, to indicate when to apply this primer layer,
The following experiment was conducted.

Test 2 Five sheets of plywood were prepared, and the primer used in Test 1 was applied to the surface. Immediately after applying primer, after applying primer 1
Putty was applied to the parts that had been left for a week, for two weeks, for three weeks, and for one month.

Paper wall coverings were glued on top of the wall coverings, and adhesion tests were conducted between the wall coverings and plywood, and the results were almost the same.

The results of this test reveal that the primer does not change over time and that a primer layer can be applied to the wood material at any time.

(Effects of the Invention) As can be seen from the above explanation, the present invention eliminates wrinkles and cracks in the wall finishing material by simply providing a primer layer on the surface of the wooden material to which the gypsum board will be joined before applying putty. can be prevented,
It is extremely simple, highly effective, and convenient.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram for explaining one embodiment of the present invention,
FIG. 2 is an explanatory diagram of another embodiment. 1. Wooden materials (pillars) 2.
------~Gypsum board 3-------------Joint section 5----------Putty

Claims (1)

[Claims] (1) In an interior wall finishing method in which a wall finishing material is attached to a gypsum board base material, a primer layer containing ethylene-vinyl acetate copolymer as the main component is applied to the wood surface at the joint between the gypsum board and the wood material. A method for finishing an interior wall, which is characterized in that a putty is applied to the joint between the wooden material and the plasterboard, and then a wall finishing material is applied on top of the putty.