JPH01178657A - Wall structure - Google Patents

Abstract

PURPOSE:To apply a mildewproofing effect on all the inside of a wall structure, by clogging a gap formed between inner-lining layers of the adjacent wall panel units with putty containing a mildewproofing agent, and attaching a face panel onto the inner-lining layer through an adhesive layer containing a mildewproofing agent. CONSTITUTION:A plaster board as an inner-lining layer 2 is attached to both sides of a structural base member 1 made of wood and the like and having a frame structure in order to construct a wall panel P. A plastic putty material 3, which contains a mildewproofing agent and ethylene/vinyl acetate resins, is applied from the interior side into a gap C formed between the inner-lining layers of the adjacent wall panels, to thereby clog the gap. The inner-lining layer 2 is coated with an adhesive 4 of the same material as the putty 3 containing a mildewproofing agent and ethylene/vinyl acetate resin and the like. Then, on the inner-lining layer is attached a front panel 5. This construction completely prevents mildew from entering the inside of the wall structure from the front panel 5.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a wall structure, and particularly to an interior finishing structure for an indoor side of a wall structure of a building such as a house.

[Conventional technology]

As for the interior finishing structure of houses, etc., as mentioned above, a base material such as gypsum board or plywood is usually provided on a basic structure material such as ice layer or concrete, and then vinyl chloride is added on top of the base material such as gypsum board or plywood. It has a structure in which a covering material such as cloth is pasted.

In recent years, as houses have become more airtight, the environment has become such that condensation is likely to occur on the interior surfaces of the wall structures and inside the wall structures.

As a result, problems such as mold growing on the interior surfaces and inside the wall structure of a house after it is completed, staining the interior surfaces and harming the health of the residents are increasing significantly.

In order to solve the above-mentioned problem, a technology is used to add a fungicide to the adhesive used to attach the wallpaper, which serves as the covering material, to plasterboard, etc.
(see Japanese Patent Publication No. 58-49673) and a technique of applying a paint containing an antifungal agent to the surface of a gypsum board (see Japanese Patent Publication No. 57-59229).

Base materials such as gypsum board and plywood can be constructed by forming panels of a certain area in advance and pasting them one after another on top of the basic structural materials of the wall, or by assembling wood etc. into a frame shape and constructing it. It is constructed as a so-called wall panel, such as an exterior wall panel or a partition panel, with a base material such as gypsum board attached to the surface.

Therefore, after construction, there is inevitably a slight gap between adjacent gypsum boards, etc., and this gap is usually filled with putty made of calcined gypsum or the like.

[Problem to be solved by the invention]

In this case, this putty area becomes a breeding ground for mold, and the problem arises that the mold generated or grown here may invade the facing material. In addition, mold that has grown inside the wall structure is likely to pass through the putty through gaps in the plasterboard and enter the facing material.

Among the above-mentioned prior art techniques, when an anti-mold paint is applied to a gypsum board or after it is removed, mold that grows and grows inside the wall structure or the putty part can freely invade the facing material. In this area, ′ζ has no antifungal effect at all. Additionally, the adhesive used to attach the facing material to which an anti-mold agent is added is effective in preventing mold from entering the facing material.
Although this can be achieved to some extent, it is difficult to completely prevent mold from invading the facing material if only a large amount of mold grows in the putty.

Therefore, the invention was developed to create a wall that can improve the mold-proofing effect of the entire interior surface by cooling the gaps between the base material such as the above-mentioned gypsum board and actually preventing the growth of mold in the putty area. The purpose is to provide structure.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a wall structure in which gaps between wall base materials are closed from the surface with putty, and a facing material is pasted on top of the base materials via an adhesive. Use putty and adhesive to which an antifungal agent has been added.

[Effect]

In this way, by using putty and adhesive to which an antifungal agent has been added, the antifungal effect can be exerted not only in the adhesive area but also in the putty area.

〔Example〕

Next, the present invention will be described below with reference to drawings showing embodiments.

First, Fig. 3 shows one unit of an exterior wall or partition panel P used to construct a wall structure, and such wall panels P are connected in sequence and constructed as shown in Fig. 4. This constitutes the wall structure. wall panel P
The basic structure is that a base material 2 such as gypsum board is attached to both sides of a basic structure material 1 such as wood assembled into a frame shape. After constructing such a wall panel (■), fill the gap between the base materials 2 with putty from the interior side, and then apply a facing material such as vinyl chloride cloth with adhesive on top of it. , the wall structure is constructed.

The detailed structure of the wall structure as described above is shown in Figures 1 and 2.
As shown in the figure, the wall panel P has a base material 2 with paper 21 pasted on both sides of a gypsum board 20 in advance and pasted on both sides of a basic structure material 1 made of wood or the like. and,
There is a gap C between the end faces of each wall panel P,
A plastic putty 3 is applied to this gap C from the surface of the base material 2 on the interior side to close the gap C. Like conventional putty, this putty 3 is mainly made of calcined gypsum, rhusium carbonate, etc., but in addition to these materials, it also contains a fungicide such as parachlorometaxylenol, and ethylene-vinyl acetate. Added resin.

As the antifungal agent, various agents used in ordinary construction can be used, such as 2-(4-thiazolyl).
-Henzimidazole, Methyl 2-Henzimidazole Carhamate, Methyl 1-Butylcarbamoyl-2-Henzimitazole Carhamate, 4-Chloro-3,5-
Xylenol (parachlorometaxylenol), 4-chloro-3-cresol, zinc dimethylcythiocarhame 1-, tetramethylthiuram disulfide, zinc ethylene bisdithiocarhamate, 2,3-dichloro-1
, 4-naphthoquinone, 2,4,5.6-titrachloroisophthalonitrile, N-(trichloromethylthio)-tetrahydrophthalimide, dimethyllaurylhensyl ammonium chloride, triphenyltin chloride,
N'-(dinechlorofluoromethylthio)-N,N
-dimethyl-N'-phenylsulfamide and the like. In addition, as a fungicidal agent, in particular, a sublimable one has a high permeability to a surface material, etc., which will be described later, and is excellent in anti-mildew effect.

Ethylene-vinyl acetate added to putty 3 + jJ li
T? is effective as an adhesive reinforcing agent for increasing the adhesion to facing materials such as salt hyfloss, which will be described later, and for preventing the facing materials from peeling off or floating after installation. Also, in order to prevent dust from forming on the surface of the putty 3,
It is effective to add a synthetic resin such as the above-mentioned ethylene-vinyl acetate resin.

After the gaps in the base material 2 are filled with the putty 3 in this way, an adhesive 4 is applied to the surface of the base material 2, and a facing material 5 such as PVC cloth is pasted with this adhesive. .

As the covering material 5, in addition to vinyl chloride cloth, covering materials made of various synthetic resin sheets, paper materials, fabrics, etc., which are commonly used in interior construction, can be freely used. As the adhesive 4, any of various ordinary adhesives can be used as long as it can strongly bond the facing material 5 and the base 4A2. and,
This adhesive 4 also contains the same antifungal agent and ethylene-vinyl acetate resin as the putty 3.

In addition, ethylene-vinyl acetate resin is effective as an adhesive strengthening agent that increases the adhesion with the base material 2 in the case of the facing material 5 or salt Hyfloss, but depending on the quality of the facing material 5, ethylene-vinyl acetate resin Adhesive strengthening agents other than vinyl Iff fats may be added. In the case of adhesives 4 or those whose main ingredient is starch, it is better to use modified wheat starch than underground starch (such as those made from potatoes, tapioca, etc.).
High water resistant adhesion and aging resistance. Furthermore, the less the amount of sodium nitrate contained in the adhesive, the less the discoloration stain ↑6 caused by ultraviolet rays, which occurs when the adhesive 4 accidentally adheres to the surface of the facing material 5 during construction.

The wall structure explained above consists of a wall panel P with base material 2 made of gypsum board affixed to both sides of foundation structure material 1.
However, in addition to that, many base materials 2
As long as it has a structure on which the facing material 5 is adhered, it can be applied to various wall structures used in ordinary building construction. For example, the basic structure material 1 consists of a board wall, concrete wall, etc. constructed in advance without using the wall panel P.
Alternatively, a structure may be used in which the base material 2 is sequentially pasted during on-site construction.

As the base material 2, in addition to gypsum board, plywood and other ordinary construction base materials can be used.As in the above embodiment, when paper 21 is pasted on both sides of the gypsum board 20, this paper 21 It is preferable because it itself has the effect of preventing mold growth.

Note that it is convenient for construction if the base material 2 on the exterior side to which the facing material 5 is not attached is one in which a suitable exterior material is attached to the outer surface of the gypsum boat 20.

To explain the fungicidal effect of the wall structure explained above, the antifungal agent added to the putty 3 and adhesive 4 gradually penetrates into the interior of the facing material 5 and the base material 2 after construction is completed. It is possible to prevent the occurrence and growth of mold. At this time, if the antifungal agent has a high sublimation property, it will sufficiently penetrate into the interior of the facing material 4 and wall structure.
It can exhibit good anti-mildew effect.

Next, regarding the formulation examples of putty 3 and adhesive 4 used in the wall structure of this invention, and the results of their performance tests,
This will be explained below while comparing it with conventional products.

First, examples of the combination of putty and adhesive are shown in the table below.

In the above formulation table, the component names of the antifungal agent represent the following drugs.

PCMX: parachloromethaxylenol (active ingredient 10
0%) TBZ: Zyahendazole (active ingredient 50%) Organic chloride: Tetrochloroisophtaconyl-1-lyl (active ingredient 100%) The putty made of the above formulation is in a powder state, and this powder putty is A mixture of 100 parts of powdered putty and 50 to 40 parts of water was used in the test. In addition, as an adhesive,
A mixture of 100 parts adhesive and 70 parts water was used. The amount of adhesive applied was 200 g/m.

The results of the performance tests of the putty and adhesive described above are shown in the table below.

In the above performance test, among the test items, the items with subscripts were tested under the following conditions.

■ Conforms to JIS-A6922 (starch-based adhesive for wallpaper construction).

■...Conforms to the Housing and Urban Development Corporation special common specifications.

Initial adhesion (adhesion) strength: Salt Hyfloss was adhered to plywood or putty as a surface coating, and after drying indoors for 10 times, the adhesion strength was measured.

Durable adhesion (adhesion) strength: As above, PVC cloth was adhered to plywood or putty, and after drying indoors for 10 days, the following environmental conditions were repeated for a predetermined cycle, and after drying indoors for another 10 days, adhesive strength was measured.

Table ■ ■...Conducted in accordance with JIS-22911.

Molds for testing: Alpergillus nickel FERM S-1 Penicillium citrinum FERM S-5 Chaetomium Globosum FERM 5-11 Myrothecium Hercaria
FERM 5-13 Alternaria Shitori medium: Ammonium nitrate 3.0g Potassium phosphate 1.0g Magnesium sulfate 0.5g Potassium chloride 0.25g Ferrous sulfate
0.002 g agar 25.0
g prison blue deaf water 1
000 ml Culture temperature = 28 °C Culture period: 40 days Display of results: 3- No mycelial growth is observed in the inoculated part of the sample or test piece.

2- On the inoculated part of the sample or test piece Area of observed mycelial growth does not exceed 1/3 of the total area.

1- On the inoculated part of the sample or test piece Area of observed mycelial growth exceeds 1/3 of the total area.

■...Compliant with Misfire Chemical's putty test method for pasting wallpaper.

From the above results, it was demonstrated that the putty and adhesive of the above-mentioned formulation example have excellent anti-mildew effects and also have high performance in use such as adhesive strength. Therefore, it has been found that sufficient effects can be exhibited when used in the wall structure of the present invention described above.

〔Effect of the invention〕

The wall structure of the present invention as described above uses an adhesive for bonding the facing material to the base material, a cold putty for the gaps between the base materials, and an anti-mold agent added to the interior surface. It has become possible to exhibit a good anti-mold effect over the entire surface.

In other words, simply adding antifungal agents to adhesives
There is a drawback that mold grows and grows in the parts of the putty where there is no adhesive and invades the surface of the putty, but if an anti-mold agent is added to the putty as in this invention, this can be prevented. ,
The entire back surface of the facing material can be given a stain-proofing effect, and the invasion of stains into the facing material side can be completely blocked.

In particular, the gaps at the edges of the base material, where mold can easily grow and grow, and where mold can enter inside the wall, can be filled with putty containing an anti-mold agent. ,
The anti-mold effect is greatly improved.

What's more, in order to construct the wall structure of this invention, all you have to do is prepare the putty with anti-fungal agent in advance, and the work on site is the same as before, without requiring any special materials or processes. It can be constructed quickly and does not require much time or effort, and does not increase construction time or construction costs.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view of the wall structure according to the present invention, Fig. 2 is an enlarged sectional view of the gap between the base materials, Fig. 3 is a plan view of the wall panel constituting the wall structure, and Fig. 4. is an end view of the wall panel after it has been installed. 2... Base material 3... Putty 4... Adhesive 5.
... Surface material C ... Gap agent Patent attorney Takeshi Matsumoto Related Patent Applicant Location 1-1 Shinsenri Nishimachi, Toyonaka City, Osaka Prefecture
No. 12 Name (467) National Housing Industry Co., Ltd. Representative Representative Posted by Minoru O (and 2 others) 4. No agent 6. Specification subject to amendment and document proving authority of agency 7. Contents of amendment ■ The entire text of the claims column of the specification should be corrected as follows. In a wall structure where the gaps between wall base materials are filled with putty from the surface, and a facing material is pasted on top of the base material with an adhesive, the putty and adhesive prevent mold. A wall structure characterized by being made of a material to which an agent has been added.'' ■ Amend the document certifying the power of attorney as shown in the attached document.

Claims (1)

[Claims] (1) In a wall structure in which the gaps between wall base materials are filled with putty from the surface, and a facing material is pasted on top of the base material with an adhesive, the putty and adhesive may be coated with an antifungal agent. Wall structure characterized by consisting of additives.