JPH11303240A - Sound absorption wall surface material, its manufacture and execution of sound absorption wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve sound absorption effect by adhering a sound absorption surface material obtained by adhering the woven fabric of an obverse side and the non-woven fabric of a reverse side by a first adhesive on a sound absorption wall substrate material by a second adhesive. SOLUTION: A strip-like fabric raw material 2a is successively drawn out from a fabric roll Ra by a tenter 11. A strip-like non-woven fabric raw material 2b is drawn out from a non-woven fabric Rb, and the first adhesive 2c of viscosity of 7,000-10,000 (CPS/20 deg.C) is transferred through the two rolls 13, 14. Next, the non-woven fabric raw material 2b is overlapped on the fabric raw material 2b and passed between an adhesion roll 16a and a receiving roll 16b. The fabric 2a of an obverse side and the non-woven fabric 2b of a reverse side obtain a sound absorption surface material adhered by the first adhesive making a multi-hole layer. The second adhesive is applied on the sound absorption surface material, and the non-woven fabric 2b side is adhered on a sound absorption wall substrate material. Therefore the wall surface material excellent in sound absorption effect and the wall structure executed thereby can be easily provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a sound absorbing wall surface material,
The present invention relates to a method for manufacturing the same and a method for installing a sound absorbing wall.

[0002]

2. Description of the Related Art As wall surface materials, there are various types of so-called wallpapers, and the back side of any type of wallpaper is always paper. The reason for this is to glue the paper when the wallpaper is pasted on the wall. The types of wallpapers are classified into three types: vinyl chloride wallpaper, paper wallpaper, and textile wallpaper. Regarding the sound absorption effect of the wallpaper, piled or woven textile wallpaper has a certain degree of sound absorption effect.

[0003]

However, the adhesive used when laminating the backing paper and the fabric forms a film on the paper, and reduces the sound absorbing effect. For this reason, the backing paper was perforated with a needle to increase the sound absorbing effect, but this work required a great deal of trouble. An object of the present invention is to solve the above problems and to provide a wall surface material excellent in sound absorbing effect, a method for manufacturing the same, and a method for constructing a sound absorbing wall.

[0004]

Means for Solving the Problems To solve the above problems, the configuration of the present invention is as follows. That is, the sound absorbing wall surface material of the first configuration is such that the woven fabric on the front side and the nonwoven fabric on the back side are bonded with the first adhesive forming a porous layer.

[0005] In a second method of manufacturing a sound absorbing wall surface material, a band-shaped fabric material is sequentially fed from a fabric roll by a tenter, and a viscosity of 7,000 to 10,000 is provided above the tenter.
A container containing the first adhesive of 00 (CPS / 20 ° C.) is provided, the lower half is immersed in the layer of the first adhesive, and the first roll is rotatably provided with power, and the first roll is approached immediately above the first roll. A second roll is rotatably provided, and a part of the first adhesive attached to the surface of the first roll is transferred to the surface of the second roll.
The belt-shaped nonwoven fabric material is unwound from the nonwoven fabric roll toward the second roll, is deflected downward by a deflecting roll on the way, approaches the surface of the second roll, and transfers a part of the adhesive there. First, a pair of upper and lower adhesive rolls and a receiving roll installed near the tip of the tenter is passed over the woven fabric material so that the first and second adhesive rolls form a porous layer.
It is to adhere through an adhesive.

A third construction method of the sound-absorbing wall uses a sound-absorbing wall surface material in which a front-side woven fabric and a back-side non-woven fabric are adhered with a first adhesive, and a second adhesive is applied to the surface of the non-woven fabric. And bonding the non-woven fabric side to the sound absorbing wall base material by forming a porous layer on the second adhesive.

[0007]

Embodiments of the present invention will be described below with reference to an embodiment shown in the drawings. In FIG.
The fabric 2a on the front side and the nonwoven fabric 2b on the back side are the first adhesive 2
The sound absorbing wall surface material 2 bonded by c is used. Then, a second adhesive 3 is applied to the nonwoven fabric 2b side of the sound absorbing wall surface material 2.
, And adhere it to the surface of the wall base material 1.

Here, the sound absorbing wall surface material 2 is manufactured as follows. First, the following materials are used as the various materials. Fabric 2a Material name: Cellulose rayon Tissue: Plain weave Nonwoven fabric 2b Material name: Cellulose rayon Thickness: 120 g / m ² First adhesive 2c Material name: Vinyl acetate (water-soluble) Viscosity: 10,000 CPS / 20 ° C : 80 g / m ²

The manufacturing method is as follows, as shown in FIG. Strip-shaped fabric material 2a from fabric roll Ra
Are sequentially fed out by the pin tenter 11. On the other hand, a container 12 of the first adhesive is provided above the tenter, and the lower half is immersed in the layer of the first adhesive to form the first roll 13.
The second roll 14 is provided so as to be rotatable with power, and the second roll 14 which is close to and rotatable with power moves a part of the first adhesive adhered to the surface of the first roll 13.

Further, the first and second rolls 13 and 14
On the opposite side from the woven fabric roll Ra, the band-shaped nonwoven fabric material 2b is fed out from the nonwoven fabric roll Rb toward the second roll 14, and is diverted downward by the deflecting roll 15 on the way to the second It approaches the surface of the roll 14, where it receives a transfer of a portion of the first adhesive and is directed downward. Then, between the pair of upper and lower adhesive rolls 16a and the receiving roll 16b of the tenter 11, the nonwoven fabric 2b is superimposed on the fabric 2a and passes. At this time, a part of the first adhesive on the nonwoven fabric 2b side moves to the fabric 2a side, and both are adhered. Then, the adhesive is slightly hardened by the steam roll 17, and is wound around the paper tube Rc via the guide rolls 18a and 18b. Thereafter, the product is completed through a normal drying process.

Here, in the bonding step between the woven fabric 2a and the nonwoven fabric 2b, the nonwoven fabric has an air layer as a whole, has a thickness and volume, and is fluffy, and the adhesive is attached to the surface of the fibers of the nonwoven fabric. . As a result, the adhesive is attached to the nonwoven fabric in a dot-like (random) manner as a whole. Then, a part of the adhesive is transferred to and adhered to the surface of the fabric by being pressed against the fabric. At this time, since the first adhesive is in the form of dots, porosity remains in the adhesive layer. For this reason, it allows sound to pass through and has a large sound absorbing effect.

Next, a method of constructing a sound absorbing wall using the sound absorbing wall surface material 2 will be described. As a sound-absorbing wall base material 1 to which a sound-absorbing wall surface material 2 is attached, a glass wool board having many small holes on the surface for sound absorption (commercially available)
Use

As the second adhesive, a general starch paste having a concentration of 20% for construction is used, and 11 kg of water and 5% of vinyl acetate (40% concentration) are added to 18 kg of one case.
Add g and mix. And the nonwoven fabric 2b of the wall surface material 2
In the coating roll to the surface, the surface material 1 m ² per application amount 15
Apply at a rate of 0 g. Next, it is adhered along the surface of the wall base material while lightly stroking the fabric surface with a construction brush.

At this time, as in the bonding step between the woven fabric 2a and the non-woven fabric 2b, the second adhesive adheres to the non-woven fabric 2b in a dot-like manner and is transferred to the wall base material. 3, the pores 3a are left. For this reason, the sound is transmitted and guided to the base material, and a sound absorbing wall having a large sound absorbing effect is obtained.

With the sound absorbing wall structure constructed in this way,
FIG. 3 shows the experimental results of the sound absorbing effect. From this graph, it can be seen that an excellent sound absorbing effect is exhibited.

The type of fabric structure suitable for sound absorption may be any fabric such as plain weave, twill weave, and shiso weave, but the thickest fabric is used as much as possible. Otherwise, when a nonwoven fabric is used on the back side and the work is applied to the wall surface, the woven fabric seems to be stretched directly on the wall surface, and scratches and the like on the base may appear on the surface and the work may not be finished beautifully. Therefore, the woven fabric preferably has a thickness of 2 mm or more. When the fabric 2a on the front side is made of a well-balanced warp and weft, it does not expand or contract even when pulled. In addition, as the material of the woven fabric, cellulosic rayon, synthetic fiber (polyester,
Acrylic is used. Cellulose-based rayon does not cause environmental pollution when disposed of.

Regarding the non-woven fabric, if the non-woven fabric is thin, the adhesive comes out in the opposite direction and the function of the non-woven fabric is lost. Therefore, it is desirable to use a thick material of about 120 g to 200 g per m ² . As the material of the non-woven fabric, a cellulose rayon, polyester or acrylic material is used as in the case of the woven fabric.

As the first adhesive, vinyl acetate (water-soluble), ethylene vinyl acetate (water-soluble) or the like is used. The viscosity of the first adhesive is 7,000 to 10,000 (CP
S / 20 ° C.). Since nonwoven fabric has good air permeability unlike paper, when a general adhesive is applied to the surface of the nonwoven fabric, it penetrates into the nonwoven fabric and comes out to the back side, and the properties of the nonwoven fabric may be lost. Therefore, if the viscosity of the first adhesive is increased, the first adhesive is applied only to the surface of the nonwoven fabric, and can be bonded to the fabric without losing the properties of the nonwoven fabric. Here, the viscosity of the adhesive is 7,000 to 10,000.
(CPS / 20 ° C.), when the coating amount is in the range of 80 to 100 g / m ² , the adhesive does not form a film, becomes porous, and effectively utilizes the material properties of the nonwoven fabric made of cellulose rayon. Thus, a decrease in the sound absorbing ability is prevented.

The present invention is not limited to the examples and embodiments described above, but includes various modifications without departing from the spirit and scope of the claims.

[0020]

According to the present invention, it is possible to easily provide a wall surface material having an excellent sound absorbing effect and a wall structure constructed thereby.

[Brief description of the drawings]

FIG. 1 is a horizontal section of one embodiment of the present invention.

FIG. 2 is a front view of one embodiment of the method of the present invention.

FIG. 3 is a graph showing an experimental result of a sound absorbing effect of the present invention.

[Explanation of symbols]

 Ra fabric roll Rc paper tube 1 wall base material 2 wall surface material 2a fabric 2b nonwoven fabric 2c first adhesive 3 second adhesive 11 pin tenter 12 container 13 first roll 14 second roll 15 deflection roll 16a bonding roll 16b receiving roll 17 Steam roll 18a, 18b Guide roll

Claims (3)

[Claims] 1. A sound-absorbing wall surface material in which a front-side woven fabric and a back-side non-woven fabric are adhered with a first adhesive forming a porous layer. 2. A belt-shaped fabric material is sequentially fed from a fabric roll by a tenter, and a container containing a first adhesive having a viscosity of 7,000 to 10,000 (CPS / 20 ° C.) is provided above the tenter. The first half is immersed in the lower layer of the first adhesive, the first roll is rotatably provided, and the second roll is provided so as to be rotatable close to the first roll, and the first roll is provided on the surface thereof. A part of the first adhesive adhered to the surface of the non-woven fabric is transferred, a strip-shaped non-woven fabric material is unwound from the non-woven fabric roll toward the second roll, and is deflected downward by a deflecting roll on the way. Approach the surface, transfer a part of the adhesive there, guide it down, pass between the pair of upper and lower adhesive rolls and receiving rolls installed near the tip of the tenter, passing over the woven material, , The first of which forms a porous layer
A method for producing a sound-absorbing wall surface material, wherein the sound-absorbing wall surface material is adhered via an adhesive. 3. A sound-absorbing wall surface material in which a front-side woven fabric and a back-side non-woven fabric are bonded with a first adhesive, and a second adhesive is applied to the surface of the non-woven fabric, and the second adhesive is applied. A method for constructing a sound-absorbing wall in which a non-woven fabric side is adhered to a sound-absorbing wall base material by forming a porous layer.