JPH0754043B2 - Interior material - Google Patents

Description

Detailed Description of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to interior materials such as ceiling materials and wall materials.

[0002]

2. Description of the Related Art A binder such as an uncured phenol resin binder is added to short glass fibers produced by a centrifugal method or the like to collect cotton, and the binder is cured by being pressed while being pressed to have a predetermined density to cure the binder. The glass fiber short fiber board in which glass fibers are bonded together is lightweight, has excellent heat insulation and sound absorption, and is widely used as an interior material. In order to prevent the short glass fibers from scattering from the short glass fiber plate and to improve the aesthetic appearance, a surface covering material is adhered to the surface of the short glass fiber plate.

[0003]

It is strongly desired that the interior materials have nonflammability that passes the base material test and surface test of the nonflammable material test according to the Ministry of Construction Notification No. 1828. In order to pass the above-mentioned base material test, it is necessary that the test body is inserted into a heating furnace kept at 750 ± 10 ° C. and the temperature rise in the furnace at this time is 50 ° C. or less. Further, in order to pass the surface test, it is necessary that the temperature-time area is 0 or less and the smoke density is 30 or less. When an organic fiber cloth is used as the surface material, an ignition phenomenon occurs in the surface material placed in the heating furnace, and the temperature inside the furnace rapidly rises to 850 ° C or higher. For this reason, in order to obtain an interior material (passed product) that passes the certification test, glass cloth, which is itself a non-combustible material, is exclusively used as the surface covering material. Since it has poor properties, the color of the glass fiber board can be seen through, which is not preferable in appearance. The appearance can be improved by applying the sealing material to the glass cloth, but when the sealing material is applied, not only the nonflammability is deteriorated and a passing product cannot be obtained, but also the sound absorbing property is easily deteriorated.

By using a woven fabric made of organic fibers, it is possible to improve the appearance and obtain an interior material having good sound absorption. However, as described above, the woven fabric made of organic fibers is burned. Since it is easy to do and an ignition phenomenon occurs in the heating furnace, it was not possible to obtain an acceptable product using the organic fiber woven cloth. It is an object of the present invention to solve the above-mentioned problems of the prior art, to provide an interior material which has good appearance and sound absorption and which sufficiently passes the above-mentioned base material and surface test.

[0005]

In the present invention, in order to achieve the above object, a warp,
One of the weft yarns is a cupra yarn and the other is a yarn mainly composed of viscose rayon, suf or cotton, and a woven fabric to which a phosphoric acid treatment agent is added is adhered with a carbodiimide adhesive agent for interior decoration. Make up the material.

Next, the present invention will be described more specifically. In the present invention, the glass short fiber board 1 has a diameter of 3 to 3
0 μm, preferably 5 to 13 glass short fibers, 3 to 15 wt% of the binder as a solid component, preferably 5 to 12 w
It is obtained by adding t%, pinching and heating,
Bulk density of 30 to 120 Kg / m ³ , preferably 40 to 10
0 kg / m ³ , thickness 10 to 100 mm, desirably 15
It is suitable to use one having a thickness of -50 mm. As the binder, B-stage phenol resin, modified phenol resin, or the like can be preferably used.

If the density is too high, the sound absorption tends to decrease, and if the density is too low, it is difficult to obtain sufficient rigidity.
If the thickness is too small, sound absorption and heat insulation will be insufficient, and if the thickness is too large, it will be uneconomical and the characteristics of lightweight will be easily lost. If the amount of the binder is too small, it is difficult to obtain sufficient rigidity, and if the amount of the binder is too large, the incombustibility tends to deteriorate.

As the surface covering material, there is used a woven fabric 2 in which one of the warp yarn and the weft yarn, preferably the warp yarn is a cupra yarn, and the other weft yarn is preferably a yarn mainly composed of viscose rayon, staple fiber or cotton. To do. As cupra thread, 50-15
It is suitable to use 100 to 300 denier, preferably 150 to 240 denier, which is obtained by mixing filaments of 0 denier, preferably 75 to 120 denier.

As the yarn mainly composed of viscose rayon, suf or cotton, it is suitable to use a yarn having a denier of 60 to 1,000 denier, preferably 120 to 800 denier.

The woven structure of the woven fabric formed of the above-mentioned yarns is not particularly limited, but plain weave, twill weave, satin weave and the like can be preferably used alone or in combination. The number of shots and the basis weight are 60 to 200 lines / inch, preferably 90 to 13
It is suitable that the number is 0 lines / inch, weft 30 to 100 lines / inch, preferably 50 to 70 lines / inch, 100 to 300 gr / m ² , and preferably 180 to 250 gr / m ² . The function of the present invention is not fully understood, but a woven fabric (hereinafter referred to as a main woven fabric) in which the above two types of yarns are combined is used as a warp and a weft, and the carbodiimide is subjected to the phosphoric acid treatment described below. Although it has been possible to obtain a passing product by bonding with a system adhesive, when using a yarn mainly composed of cupra or viscose rayon, suf or cotton and a yarn other than this, cupra yarn Alternatively, when only a thread mainly composed of viscose rayon, suf or cotton was used, a suitable result could not be obtained even if the carbodiimide adhesive was used after the phosphoric acid treatment described below. .

As the phosphoric acid-based treating agent, those mainly composed of phosphoric acid-based compounds such as polyphosphoric acid carbamate-based, phosphoric acid-containing aminoplast-based, and polyphosphate condensate-based compounds are used. Alternatively, it is appropriate to add the phosphoric acid-based compound by spraying the suspension onto a woven cloth, or dipping the woven cloth into these liquids, or coating with a roll coater. No acceptable product could be obtained when a flame retardant material was used or when an adhesive other than the carbodiimide-based adhesive described below was used. The applied amount is 5 to 70 wt%, preferably 10 to 50 wt% of the total organic matter (total amount of woven fabric and binder) as solid content. If the applied amount is too small, the incombustibility tends to be insufficient, and if it is too large, the woven fabric is discolored or the flexibility is easily lost. In addition, a flame retardant such as a boric acid compound or an organic halogen compound may be used in combination.

The woven cloth 2 is adhered to the glass short fiber board 1 with the carbodiimide adhesive 3 to form the interior material 4. As the carbodiimide adhesive, it is suitable to use carbodilite (trade name, manufactured by Nisshinbo). The amount of the adhesive used is 20 to 200 gr / m ² , preferably 30 to 1
A suitable value is 00 gr / m ² . If this amount is too small, the woven fabric is likely to peel off, and if the amount is too large, the adhesive effect does not increase so much, which is uneconomical. Further, by adding an inorganic hydroxide compound such as Al (OH) ₃ or Mg (OH) _{2 to} the adhesive, a better result can be obtained.

[0013]

A woven fabric in which one of warp and weft is made of cupra yarn and the other is made of viscose rayon, staple fiber or cotton-based yarn, and a phosphoric acid type treating agent is added to the surface of the glass short fiber board. Are bonded with a carbodiimide-based adhesive to obtain an interior material having good appearance, nonflammability, sound absorption, and heat insulation.

[0014]

EXAMPLE 1 Phenolic resin binder was added to a glass short fiber having an average diameter of 7 μm as a solid content in an amount of 8 wt% and heated by pressing to produce a glass short fiber plate having a thickness of 64 kg / m ³ and a thickness of 25 mm. . Using 75 denier ply-twisted cupra yarn as warp and 265 denier soft yarn as weft, a woven fabric having the following specifications was produced. Woven structure Composite of plain weave and satin composition Number of punches 111 pieces / inch Weft 70 pieces / inch This woven fabric contains aminoplastophosphoric acid compounds and sulfomiad type oligomers at a ratio of 280 g / l and 220 g / l, respectively. The treatment liquid was sprayed, and 100 gr / m ² was added to the total amount as a solid content. Next, this woven fabric was heat-bonded to the above fiber board using Carbodilite 9010 (trade name, manufactured by Nisshinbo) 60 gr / m ² as an adhesive to obtain an interior material. This interior material has good sound absorption, heat insulation, and appearance, and when a base material test, which is a nonflammable material test according to Ministry of Construction Notification No. 1828, was performed, the temperature rise during the test was 45 ° C, which passed sufficiently, Further, when a surface test was conducted, the temperature-time area was 0, and the smoke density was 16, which passed.

[0015]

Example 2 When the same test as in Example 1 was carried out by alternately using the soft yarn and the viscose rayon yarn in place of the weft yarn of Example 1, the temperature rise in the base material test was 37 ° C. The temperature-time area was 0 and the smoke density was 18, and both passed.

[0016]

COMPARATIVE EXAMPLE 1 When the same test as in Example 1 was carried out using both staples instead of the warp and weft of Example 1, the temperature rise was 90 ° C., which was unacceptable.

[0017]

Comparative Example 2 The same woven fabric as in Example 1 was used, and instead of the phosphoric acid-based treating agent, decabromodiphenyl ether as a flame retardant was attached at a rate of 14 gr / m ² , and antimony oxide at a rate of 6 gr / m ^2. When the test similar to that of No. 1 was performed, the temperature rise was 139 ° C., which was unacceptable.

[0018]

COMPARATIVE EXAMPLE 3 Instead of the adhesive of Example 1, 100 parts of polyvinyl acetate emulsion (solid content 50 wt%), 17 parts of decabromodiphenyl ether, 4 parts of antimony oxide were used.
And 589 parts of water as a solid content of 15 gr / m ²
When used at a rate of 40, the temperature rise was 40 ° C. and the substrate test passed, but when the surface test was performed, the temperature-time area was 30, and the test failed.

[0019]

The appearance, heat insulation, sound absorption and nonflammability are excellent.

[0020]

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an interior material of the present invention.

[Explanation of symbols]

 1 Short glass fiber board 2 Woven cloth 3 Adhesive 4 Interior material

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display area E04B 1/94 V

Claims (1)

[Claims] 1. A surface of a glass short fiber board, wherein one of warp and weft is a cupra thread and the other is a thread mainly composed of viscose rayon, staple fiber or cotton, and a phosphoric acid treatment agent is added. An interior material characterized in that the woven fabric is adhered with a carbodiimide adhesive. [0001]