JPH01277295A - Humidity controlling and sound absorbing board - Google Patents

Abstract

PURPOSE:To obtain the high function of humidity control and sound absorption by laminating a humidity controlling material to have sound transmissivity and gas permeability and a sound absorbing material to have the gas permeability and providing a decorative material, which has the acoustic transmissivity and gas permeability, on the surface of either the humidity controlling material or sound absorbing material. CONSTITUTION:A humidity controlling layer 2 and a sound absorbing layer 3 are laminated and after that, a surface layer 1 to be composed of the decora tive material, which has the acoustic transmissivity and gas permeability, is laminated on the side of the humidity controlling layer 2. Namely, the humidity controlling layer 2 is composed of the humidity controlling material to have the acoustic transmissivity and gas permeability. Then, as this humidity control ling material, an insulation board, a seizing board, a particle board, plywood, whose thickness is >=3mm, a calcium silicate board, a gypsum board, and an asbestos board, etc., can be used. Thus, the high humidity controlling function and sound absorbing function can be exhibited.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a humidity control sound absorption board having a humidity control function and a sound absorption function.

[Conventional technology] In order to improve the acoustic effects in sound studios, etc.,
BACKGROUND ART Sound-absorbing boards with a sound-absorbing function are widely used as wall and floor materials in general houses to prevent noise.

On the other hand, humidity control boards are used to prevent condensation by absorbing moisture under high humidity conditions and releasing the absorbed moisture under low humidity conditions, as well as to adjust indoor humidity and keep it almost constant. ing.

[Problems to be Solved by the Invention] In order to use the above-mentioned sound absorption board and humidity control board in the same room and to have both sound absorption and humidity control functions, it is necessary to install both the sound absorption board and the humidity control board. However, the space they occupy becomes large and the indoor space becomes narrow.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a humidity control sound absorption board that has both sound absorption and humidity control functions and occupies a small space.

[Means for Solving the Problems] The present invention provides a humidity control layer made of a moisture control material having acoustic transparency and air permeability on a sound absorption layer made of a sound absorption material having air permeability. A sound-absorbing material having air permeability is provided on a surface layer made of a decorative material having acoustic transparency and breathability, or a humidity control layer made of a humidity control material having sound transparency and breathability. The solution is to provide a sound-absorbing layer made of a material, and a surface layer made of a decorative material having acoustic transparency and air permeability on the sound-absorbing layer. The material is insulation board, sheathing board, particle board, plywood with a thickness of 3 mm or more, calcium silicate, gypsum board, or asbestos board that is non-breathable and acoustically transparent. The solution was to add .

[Function: A moisture control material with sound transparency and breathability and a sound absorption material with breathability are laminated, and the surface of either the humidity control material or the sound absorption material is made with sound transparency and breathability. Since the material is provided, it can be made into a board material that has both moisture control and sound absorption functions, and if this material is used as wall material or floor material, the space occupied by the building material can be reduced.

[Example] Fig. 1 shows an example of the humidity control sound absorbing plate described in claim 1 of this invention, and Fig. 2 shows it as described in claim 2 of this invention! An example of the l1liu sound absorbing plate is shown. The humidity control sound absorption board shown in FIG. 1 has a humidity control layer 2 and a sound absorption layer 3 laminated together, and then a surface layer 1 is laminated on the humidity control layer 2 side.
This is housed in the housing body 4 so that the housing body 4 and the sound absorbing layer 3 are in contact with each other. The difference between the humidity control sound absorption board shown in FIG. 2 and the humidity control sound absorption board shown in FIG. , the stacking order is reverse to that of the humidity control sound absorbing board shown in FIG.

This surface layer 1 is made of a decorative material having acoustic transparency and air permeability, and the following materials can be suitably used as this decorative material. ■Natural wood veneer boards with a thickness of 0.3 or less, ■Natural wood veneers with a thickness of 1. 〇 - The following natural wood veneers lined with non-woven fabric, woven fabric, metal wheels, etc., with many fine holes in them, ■ Porous cork such as laminated cork, ■ Vegetable knitted fabrics such as tatami mats, 0 Knitted fabrics such as paper and thread; ■Nonwoven fabrics made of glass, natural fibers, artificial fibers, etc.; ■Woven fabrics made of glass, natural fibers, artificial fibers, etc.;
■Wire mesh, etc. Note that the natural wood veneers in ■ and ■ above are made of hardwood, and have pores that are similar to conduits that penetrate from the front to the back of the wood, and are thin, making them highly breathable and acoustically transparent. It has the following. The veneer board in (3) has a large number of fine holes to provide breathability and sound transparency, so in addition to the above-mentioned hardwood veneer board, softwood veneer board that does not have pores such as conduits can also be used. can do.

The humidity control layer 2 is made of a humidity control material that has acoustic transparency and breathability.
A test piece was pasted on the inner surface of a 20 x 30 cm steel box, placed in a vacuum dryer with a capacity of 2,712 cm, and evacuated for 20 minutes.
When the water was allowed to flow for 5 minutes and then left for 45 minutes, 15
X of the humidity difference value obtained by a test method where the humidity difference between minutes and 0 minutes is X%, and the humidity difference between 15 minutes and 60 minutes is Y%.
It is possible to suitably use materials having a humidity control function such that the value is 20 to 30%, Y7>(15% or less). As a sheet, starch-based, acrylic-based, P
Examples include those made by coating resin fine particles such as VA type and cMc type on a sheet with good air permeability made of synthetic fibers such as rayon, nylon, acrylic, and polyester.

Examples of non-breathable materials include: ■insulation board, ■sheathing board, ■particle board, ■plywood with a thickness of 3III11 or more, ■silicate lithium board, and ■gypsum as described in claim 3 of the present invention. Board, ■Asbestos board, etc. can be used. In order to use such a non-breathable humidity control material as the humidity control layer 2, the following ventilation holes are provided to make it breathable. As shown in Fig. 3, the humidity control layer 2 made of the above-mentioned 8 moisture materials is provided with a large number of ventilation through holes 2a of appropriate dimensions to provide ventilation, and as shown in Fig. 4. As described above, a large number of horizontal ventilation holes 2b perpendicular to the thickness direction of the humidity control material are provided in the humidity control layer 2, and the thickness of the humidity control material is It is possible to use a structure in which a large number of vertical ventilation holes 2c are provided parallel to the direction, and the ventilation holes penetrate through the intersections of these holes. At this time, the sum of the diameters of the horizontal ventilation holes 2b and the vertical ventilation holes 2c must be set to be larger than the thickness of the humidity control material.

The sound absorbing material 153 is made of a breathable sound absorbing material, and examples of the sound absorbing material include rolled porous metal nonwoven material, porous gold II sintered body, glass wool, etc., which have good sound absorbing performance especially in the middle and high frequency ranges.
Open-cell foams such as urethane and SBR can be suitably used.

The storage body 4 includes a particle board having a predetermined thickness,
Wood such as lauan plywood or subluce can be used, and the surface layer 1, humidity control layer 2, and sound absorbing layer 3 are laminated directly on the wall or floor, etc., without providing the storage body 4. It is also possible to use it by adhering it.

In order to manufacture a humidity control sound absorption board having such a structure, a decorative material forming the surface layer 1, a humidity control material forming the humidity control layer 2, and a sound absorption material forming the sound absorption layer 3 are prepared in advance. It is preferable to apply a hot-melt adhesive or the like in a net shape without covering these open ventilation holes or penetrating into the inside thereof, and then bonding with a hardened adhesive. Then, the surface layer 1, the humidity control layer 2, and the sound absorbing layer 3 are laminated and stored in the storage body 4 to form a humidity control sound absorbing board.

Such a humidity control and sound absorption board is made by laminating the humidity control layer 2 and the sound absorption layer 3 and bonding them to the surface layer l, so that - one board material has both the humidity control function and the sound absorption function. If this is used as a building material, conventionally one humidity control board and one sound absorption board,
Since a total of two walls and floors can be replaced with one, the space occupied by building materials is reduced and the interior space can be enlarged. Further, in an occupied space equivalent to the conventional one, by laminating a plurality of humidity control sound absorbing plates of the present invention, higher humidity control function and sound absorption function can be exhibited.

' [Experimental example] (Experimental example 1) A 0.21-thick oak straight-grained board treated with urethane resin was used as the surface layer, and a 20-mm-thick zonolite board (calcium silicate compound) with a pore size of 4 A humidity control layer was prepared by providing through holes (2) with a pitch of 6 @ 35%, and a sound absorbing layer was made of glass wool having a thickness of 20 m5 and a density of 64 kg/m'. After bonding the surface layer and the humidity control layer using moisture-curing urethane, a sound absorbing layer was bonded to the humidity control layer in the form of an arrangement combination to obtain Experimental Example 1.

(Experiment Example 2) As shown in Fig. 5 on a zonolite board with a thickness of 20+ao+, vents on the surface layer side were provided with a hole diameter of 4 am and a pitch of 6I, with an aperture ratio of 35%, and vent holes on the sound absorbing layer side. The hole diameter is 2I
I111 Provided with a pitch of 6sm and an aperture ratio of 9%,
Actual example t and all (
Experimental example 2 was prepared in the same manner.

(Comparative Example 3) As shown in FIG.
Comparative Example 3 was prepared in exactly the same manner as Experimental Example 1 except that pores with a hole diameter of 4 mm and a depth of 10 ta were provided at a pitch of 6 m on the surface layer side.

(Comparative Example 4) A 20a thick + cloudy zonolite board was used as a humidity control layer,
Comparative Example 4 was prepared by adhering a surface layer of a straight-grained oak board with a thickness of 0.21 mm and treated with urethane resin.

° (Comparative Example 5) Experimental example for punching metal with an aperture ratio of 35%! A 0.2 mm thick straight-grained oak with a urethane resin treatment, similar to that used in , was glued on to form the surface layer, and the thickness was 20 mm.
Comparative Example 5 was prepared by combining glass wool with a density of 64 kg/m3 as a sound absorbing layer.

(Comparative Example 6) A humidity control sound absorbing board was constructed in the same manner as in Comparative Example 5, except that an oak additional straight-grained board was used, which has a smaller number of penetrating pipes than straight-grained wood. Comparative Example 6 was prepared.

The samples of Experimental Example 11, Experimental Example 2, and Comparative Examples 3 to 6 were tested for normal incidence sound absorption coefficient and humidity control performance. In the humidity control test, the test sample was placed in a sealed container in a constant temperature bath at a volume ratio of A/V=1. The container was installed so that the temperature was Om-', and the temperature and humidity inside the container were measured while changing the temperature. Here, A represents the exposed area of the test sample, and ■ represents the internal volume of the sealed container.

The sound absorption coefficient test results are shown in Figure 7, and the humidity control test results are shown in Figure 8.
In the figure, the overall evaluation as a humidity control sound absorbing board is shown in Table 1.

[Effects of the Invention] As explained above, the humidity control sound absorption board of the present invention has a sound absorption layer made of a sound absorption material having air permeability, and a humidity control material made of a humidity control material having acoustic transparency and air permeability. A humidity control layer comprising a layer and a surface layer made of a TLF material having acoustic transparency and air permeability on the humidity control layer, or a humidity control layer consisting of a humidity control material having acoustic transparency and air permeability. A sound absorbing layer made of a sound absorbing material having air permeability is provided on the top, and a surface layer made of a decorative material having sound transparency and breathability is provided on this sound absorbing layer. Humidity control material with
II1m or more plywood, carnoum silicate, gypsum board,
Since it is made by providing ventilation by providing through holes in one of the asbestos boards, it has both a humidity control function and a sound absorption function, so it can be installed by adjusting the humidity in the atmosphere. It keeps the humidity of the place almost constant, and its acoustic function allows it to produce pure sound with little echo when used in acoustic halls, etc., and when used as a building material for general houses,
Provides soundproofing effect. In addition, since the humidity control sound absorption board of this invention has both humidity function and sound absorption function in one panel, it is possible to reduce the occupied space, and it is possible to use both the conventional humidity control temporary board and sound absorption board. You can expand the interior space compared to if you had done so.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram showing an embodiment of the humidity control sound absorbing plate of the present invention, FIG. 2 is a schematic configuration diagram showing an embodiment of the humidity control sound absorbing plate of the second invention, and FIGS. 3 and 4 are Figure 5 is a schematic cross-sectional view showing the structure of the humidity control layer used in Experimental Example 1, and Figure 6 is a schematic cross-sectional view showing the structure of the humidity control layer used in Comparative Example 3. A schematic cross-sectional view showing the structure, FIG. 7 is a graph showing the sound absorption coefficient of the humidity control sound absorption board of the present invention, and FIG. 8 is a graph showing the humidity control function of the 55 sound absorption board of the present invention. 1... Surface layer, 2... Humidity control layer, 3... Sound absorbing layer, 2a... Ventilation through hole, 2b... Horizontal ventilation hole, 2c... Vertical ventilation hole.

Claims (3)

[Claims] (1) A humidity control layer made of a humidity control material having acoustic transparency and breathability is provided on a sound absorption layer made of a sound absorption material having breathability, and a humidity control layer made of a moisture control material having acoustic transparency and breathability is provided on the humidity control layer. Humidity control sound absorbing board with a surface layer made of decorative material with (2) A sound absorbing layer made of a sound absorbing material having breathability is provided on the humidity control layer made of a humidity control material having sound transparency and breathability, and the sound absorption layer has sound transparency and breathability. Humidity control sound absorbing board with a surface layer made of decorative material (3) The moisture control material having acoustic transparency and breathability is non-breathable and acoustically transparent insulation board, sheathing board, particle board, plywood with a thickness of 3 mm or more, calcium silicate, gypsum board, The humidity control sound absorbing board according to claim 1 or claim 2, which is made by providing ventilation holes in either of the asbestos boards to impart breathability.