JP2803572B2 - Rock wool sound-absorbing ceiling panel for screw fastening - Google Patents
Rock wool sound-absorbing ceiling panel for screw fasteningInfo
- Publication number
- JP2803572B2 JP2803572B2 JP6198984A JP19898494A JP2803572B2 JP 2803572 B2 JP2803572 B2 JP 2803572B2 JP 6198984 A JP6198984 A JP 6198984A JP 19898494 A JP19898494 A JP 19898494A JP 2803572 B2 JP2803572 B2 JP 2803572B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- rock wool
- organic binder
- ceiling panel
- components
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
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- Building Environments (AREA)
- Panels For Use In Building Construction (AREA)
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【産業上の利用分野】本発明は、切断加工性が良く、バ
ー等の金具に効率良くビス留め施工ができ、施工安定
性、施工仕上りに優れるビス留め直張り用ロックウール
吸音天井板に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rock wool sound-absorbing ceiling panel for directly tightening screws, which has good cutting workability, can be efficiently screwed to a metal fitting such as a bar, and has excellent work stability and finish.
【０００２】[0002]
【従来の技術】従来のロックウール吸音天井板は防火性
能を兼ね備えた商品が殆ど全てであり、有機結合剤の配
合量は必然的に少なくなることから強度が小さい。この
ためロックウール吸音天井板を直接天井の鋼製下地にビ
スで張り付けるビス直張り工法を適用すると、ビス締ま
りが甘いため、地震等の振動により、緩んで落下してし
まう。外観については、板表面の硬さが不足しているた
めビス留めのスクリュウドライバーのビットストッパー
跡が顕著について見苦しい。又、施工後、天井板に掲示
物をフックを使って吊り下げるケースが多々あるが天井
板の強度不足で、大きくタワんだり、掲示物が落下して
しまう。更なる問題として通気抵抗が小さく、天井板表
面の汚染現象が見られる。等の問題がある。このため従
来のロックウール吸音天井板は石膏ボードを下張りする
いわゆる捨て張り工法を取り、ロックウール板をタッカ
ーと接着剤で貼り上げることで解決していた。しかし捨
て張り工法には熟練した技術が必要で昨今の建築工事業
界においては熟練工の数が不足する傾向が顕著であり問
題となっている。また石膏ボードを下張りする手間、そ
の上にロックウール板をタッカーと接着剤で貼り上げる
手間等非常に手間がかかる問題がある。2. Description of the Related Art Almost all conventional rock wool sound-absorbing ceiling panels have fire-proofing properties, and the strength is low because the amount of an organic binder is inevitably reduced. For this reason, if the screw direct tensioning method of directly attaching the rock wool sound-absorbing ceiling panel to the steel base of the ceiling with a screw is applied, the screws are loosened and fall loose due to vibration such as an earthquake. As for the external appearance, the bit stopper trace of the screw driver with screw is remarkable because the hardness of the plate surface is insufficient. In addition, there are many cases in which a notice is hung on a ceiling plate using a hook after construction, but the strength of the ceiling plate is insufficient, and the notice is greatly dropped or the notice falls. As a further problem, the ventilation resistance is small, and the phenomenon of contamination of the ceiling panel surface is observed. There are problems such as. For this reason, the conventional rock wool sound-absorbing ceiling panel has been solved by taking a so-called discarding construction method in which a gypsum board is laid, and sticking the rock wool board with a tucker and an adhesive. However, the abandoning method requires a skilled technique, and in the construction industry in recent years, the number of skilled workers tends to be insufficient, which is a problem. In addition, there is a problem that it takes a lot of time, such as a time for lowering the gypsum board and a time for attaching a rock wool plate with a tucker and an adhesive thereon.
【０００３】[0003]
【発明が解決しようとする課題】本発明はこうした諸問
題を解決し天井の鋼製下地にビスで直接張り付けること
のできるロックウール吸音天井板を提供することを課題
とする。SUMMARY OF THE INVENTION It is an object of the present invention to provide a rock wool sound-absorbing ceiling panel which can solve these problems and can be directly attached to a steel base of a ceiling with screws.
【０００４】[0004]
【課題を解決するための手段】前記課題は本願発明の全
組成成分中にロックウール６４〜９０重量％、ジエル
（叩解パルプ）５〜１３重量％、有機結合剤２〜１０重
量％、無機充填剤２〜２０重量％、凝集剤０．２〜１．
０重量％を含有し、全組成成分中の全有機分の合計量が
１６重量％以下（但し、難燃剤を併用した場合は２０重
量％以下）であり、密度が４００〜５００ｋｇ／ｍ3 で
あり、さらに前記有機結合剤が澱粉、ポリビニルアルコ
ール、酢ビエマルジョン、アクリルエマルジョン、ＳＢ
Ｒエマルジョン、ＣＭＣ、ガーガムから選ばれた少なく
とも１種以上を全有機結合剤中７０重量％以上含み、メ
ラミン樹脂及び尿素樹脂は全有機結合剤中３０重量％を
越えないビス留め直張り用ロックウール吸音天井板によ
って解決される。以下詳細に説明する。The object of the present invention is to provide the composition of the present invention with 64 to 90% by weight of rock wool, 5 to 13% by weight of diel (beating pulp), 2 to 10% by weight of organic binder, and inorganic filler. Agent 2 to 20% by weight, flocculant 0.2 to 1.
0% by weight, the total amount of all organic components in all the components is 16% by weight or less (however, when a flame retardant is used in combination, 20% by weight or less), and the density is 400 to 500 kg / m 3 . And the organic binder is starch, polyvinyl alcohol, vinyl acetate emulsion, acrylic emulsion, SB
R wool for direct fastening with screws containing at least one selected from R emulsion, CMC and guar gum in an amount of at least 70% by weight in the total organic binder, and melamine resin and urea resin not exceeding 30% by weight in the total organic binder. Solved by sound absorbing ceiling panels. This will be described in detail below.
【０００５】ビス留め直張り用ロックウール吸音天井板
の特に重要なビス留め性とは、ビスの締まりの良さ即ち
抜け難さとスクリュードライバービットのストッパーで
凹まない硬さがあることである。又掲示物の吊り下げ落
下が起こらないようにするためにはビス締まりに加えて
曲げ強度が高いことである。又表面汚れの原因となる通
気抵抗の向上のためにはビス留め直張り用ロックウール
吸音天井板の構造を緻密にすることである。ただし、緻
密さも行き過ぎると切断加工性及び吸音性が悪くなるの
で密度の上限が必要である。[0005] Particularly important screw fastening properties of the rock wool sound absorbing ceiling panel for direct fastening with screws are that the screws have good tightness, that is, they are hard to come out, and that they have a hardness that is not depressed by the stopper of the screwdriver bit. In addition, in order to prevent the object from hanging and falling, the bending strength is high in addition to the screw tightening. In order to improve the airflow resistance which causes surface contamination, it is necessary to make the structure of the rock wool sound-absorbing ceiling panel for direct fastening with screws tight. However, if the density is too high, the cutting workability and the sound absorption deteriorate, so an upper limit of the density is required.
【０００６】本発明者等はこれらの知見に基き鋭意課題
に取り組んだ結果本願発明の配合組成に到達したもので
ある。即ち全組成成分中にロックウール６４〜９０重量
％、ジエル（叩解パルプ）５〜１３重量％、有機結合剤
２〜１０重量％、無機充填剤２〜２０重量％、凝集剤
０．２〜１．０重量％を含有し、全組成成分中の全有機
分の合計量が１６重量％以下（但し、難燃剤を併用した
場合は２０重量％以下）であり、密度が４００〜５００
ｋｇ／ｍ3 であり、さらに前記有機結合剤が澱粉、ポリ
ビニルアルコール、酢ビエマルジョン、アクリルエマル
ジョン、ＳＢＲエマルジョン、ＣＭＣ、ガーガムから選
ばれた少なくとも１種以上を全有機結合剤中７０重量％
以上含み、メラミン樹脂及び尿素樹脂は全有機結合剤中
３０重量％を越えない配合組成である。[0006] The present inventors have made intensive efforts based on these findings and have arrived at the compounding composition of the present invention. That is, rock wool is 64 to 90% by weight, diel (beating pulp) is 5 to 13% by weight, organic binder is 2 to 10% by weight, inorganic filler is 2 to 20% by weight, and coagulant is 0.2 to 1 in all the components. 2.0% by weight, the total amount of all organic components in all the components is 16% by weight or less (however, 20% by weight or less when a flame retardant is used in combination), and the density is 400 to 500%.
kg / m 3 , and the organic binder is at least one selected from starch, polyvinyl alcohol, vinyl acetate emulsion, acrylic emulsion, SBR emulsion, CMC, and guar gum at 70% by weight in the total organic binder.
The melamine resin and the urea resin have a composition not exceeding 30% by weight of the total organic binder.
【０００７】本発明に使用するロックウールはＪＩＳ
Ａ ９５０４ に示される粒状綿であり、その使用量は
６４〜９０重量％である。６４重量％より少ないと必然
的に有機分が増え、防火性が低下し、９０重量％を越え
ると強度が不足し、密度が５００ｋｇ／ｍ3 を越えると
加工性及び吸音性が低下する。The rock wool used in the present invention is JIS
A 9504 is a granular cotton, and its use amount is 64-90% by weight. If the amount is less than 64% by weight, the organic content naturally increases, and the fire resistance decreases. If the amount exceeds 90% by weight, the strength is insufficient, and if the density exceeds 500 kg / m 3 , the processability and the sound absorbing property decrease.
【０００８】本発明に使用するジエル（叩解パルプ）は
クラフトパルプ、再生パルプ、古紙パルプ等のパルプを
叩解したものであり、ビス締まりを向上させるのに有効
である。その使用量は５〜１３重量％である。５重量％
より少ないとビス締まりが弱くなり、１３重量％を越え
ると防火性および製造時の濾水性が悪化する。[0008] Jiel (beating pulp) used in the present invention is obtained by beating pulp such as kraft pulp, recycled pulp, waste paper pulp and the like, and is effective in improving screw tightness. Its usage is 5 to 13% by weight. 5% by weight
If the amount is less than the above, screw tightening becomes weak, and if it exceeds 13% by weight, fire resistance and drainage during production deteriorate.
【０００９】本発明に使用する有機結合剤は澱粉、ポリ
ビニルアルコール、酢ビエマルジョン、アクリルエマル
ジョン、ＳＢＲエマルジョン、ＣＭＣ、ガーガムから選
ばれた少なくとも１種以上を全有機結合剤中７０重量％
以上を含み、メラミン樹脂及び尿素樹脂は全有機結合剤
中３０重量％を越えない。有機結合剤の使用量は２〜１
０重量％である。２重量％より少ないとボード強度が不
足し、１０重量％を越えると全組成成分中の全有機分の
合計量が１６重量％を越え防火性が準不燃に達しない場
合がある。但し、水酸化アルミ等の難燃剤を使った場合
は、例えば水酸化アルミ１０重量％の配合であれば全有
機分の合計量が２０重量％でも防火性は準不燃に合格す
る。またメラミン樹脂及び尿素樹脂は樹脂が硬く、弾力
性が少く、天井板が天井板を留めるビスを締めるのに弾
力性が不足し、振動や、メインテナンスの際のビスの再
締めによって次第にビスが緩むため、その使用量は３０
％を越えることは避ける必要がある。また、ロックウー
ル吸音天井板に通常使用されるフエノール樹脂はその出
発原料如何に関わらず着色するので白色の基板（ボー
ド）とはならず本願発明の天井板には使用できない。The organic binder used in the present invention comprises at least one selected from starch, polyvinyl alcohol, vinyl acetate emulsion, acrylic emulsion, SBR emulsion, CMC and guar gum in an amount of 70% by weight in the total organic binder.
Including the above, the melamine resin and the urea resin do not exceed 30% by weight in the total organic binder. The amount of the organic binder used is 2-1.
0% by weight. If it is less than 2% by weight, the board strength is insufficient, and if it exceeds 10% by weight, the total amount of all organic components in all the composition components exceeds 16% by weight, and the fire resistance may not reach quasi-incombustibility. However, in the case where a flame retardant such as aluminum hydroxide is used, for example, if the total amount of all organic components is 20% by weight, the fire protection is quasi-incombustible if the composition is 10% by weight of aluminum hydroxide. In addition, melamine resin and urea resin are hard resin, low elasticity, insufficient elasticity to tighten the screws that fix the ceiling plate to the ceiling plate, and the screws gradually loosen due to vibration and re-tightening of the screws during maintenance Therefore, its usage is 30
It is necessary to avoid exceeding%. Further, the phenolic resin usually used for the rock wool sound-absorbing ceiling panel is colored irrespective of its starting material, so that it does not become a white substrate (board) and cannot be used for the ceiling panel of the present invention.
【００１０】本発明に使用する無機充填剤は表面硬度と
ボード曲げ強度を向上させるために使用するもので、ア
タパルジャイト、セピオライト、マイカ、タルク、バー
ミキュライト、パーライト、シラスバルーン、ガラスバ
ルーンである。その使用量は２〜２０重量％である。２
重量％より少ないと耐湿たわみとボード曲げ強度が不十
分であり２０重量％を越えるとボード曲げ強度の低下及
び製造速度の低下の原因となる。The inorganic filler used in the present invention is used for improving the surface hardness and board bending strength, and includes attapulgite, sepiolite, mica, talc, vermiculite, perlite, shirasu balloon, and glass balloon. The amount used is 2 to 20% by weight. 2
If the amount is less than 20% by weight, the moisture deflection and the board bending strength are insufficient. If the amount exceeds 20% by weight, the board bending strength and the production speed are reduced.
【００１１】本発明に使用する凝集剤としては高分子凝
集剤で通常０．２〜１．０重量％使用される。The coagulant used in the present invention is a polymer coagulant, usually used in an amount of 0.2 to 1.0% by weight.
【００１２】本発明において全組成成分中の全有機分の
合計量が１６重量％以下であることが必要である。１６
重量％を越えると防火性が損なわれ準不燃の規格に達し
ないことがある。但し、水酸化アルミ等の難燃剤を配合
した場合には全有機分の合計量は２０重量％以下であれ
ばよい。In the present invention, it is necessary that the total amount of all organic components in all the components is 16% by weight or less. 16
Exceeding the weight percentage may result in impaired fire protection and may not reach the quasi-noncombustible standard. However, when a flame retardant such as aluminum hydroxide is blended, the total amount of all organic components may be 20% by weight or less.
【００１３】本発明のロックウール吸音天井板の密度は
４００〜５００ｋｇ／ｍ3 である。密度が４００ｋｇ／
ｍ3 より少ないと強度及びビス締まり、耐表面汚れが不
足し、５００ｋｇ／ｍ3 を越えると吸音性、加工性の悪
化を生じる。.The density of the rock wool sound-absorbing ceiling panel of the present invention is 400 to 500 kg / m 3 . The density is 400kg /
If it is less than m 3 , strength and screw tightening and surface stain resistance will be insufficient, and if it exceeds 500 kg / m 3 , sound absorption and workability will deteriorate. .
【００１４】本発明のロックウール吸音天井板は上記配
合成分を所定配合比で調合し、スラリー状の混合原料と
した後円網式あるいは長網式などの抄造法により抄造し
脱水乾燥して得る。更に必要に応じて脱水乾燥して得た
ロックウール吸音天井板の表面を切削したり、模様付け
したり、吸音穴加工したり、塗装仕上げを施す。The rock wool sound-absorbing ceiling plate of the present invention is obtained by mixing the above-mentioned components at a predetermined mixing ratio, forming a slurry-like mixed raw material, then forming the slurry by a paper-netting method or a long-netting method and dehydrating and drying. . Further, if necessary, the surface of the rock wool sound-absorbing ceiling panel obtained by dehydration and drying is cut, patterned, sound-absorbed, or painted.
【００１５】[0015]
【作用】本発明のビス留め直張り用ロックウール吸音天
井板はその全組成成分中にロックウール６４〜９０重量
％、ジエル（叩解パルプ）５〜１３重量％、有機結合剤
２〜１０重量％、無機充填剤２〜２０重量％、凝集剤
０．２〜１．０重量％を含有し、全組成成分中の全有機
分の合計量が１６重量％以下であり、密度が４００〜５
００ｋｇ／ｍ3 であり、さらに前記有機結合剤が澱粉、
ポリビニルアルコール、酢ビエマルジョン、アクリルエ
マルジョン、ＳＢＲエマルジョン、ＣＭＣ、ガーガムか
ら選ばれた少なくとも１種以上を全有機結合剤中７０重
量％以上含み、メラミン樹脂及び尿素樹脂は全有機結合
剤中３０重量％を越えないので、ジエルの５％以上の添
加によるビス締まり性に対する優れた作用、全組成成分
中の全有機分の合計量が１６重量％以下（但し、水酸化
アルミ等の難燃剤を配合した場合には全有機分の合計量
は２０重量％以下）とすることによる準不燃以上の防火
性、密度が４００〜５００ｋｇ／ｍ3 であることによる
優れた曲げ強度性、表面汚れの原因となる通気抵抗の向
上等の作用が相乗し合い、切断加工性が良く、バー等の
金具に効率良くビス留め施工ができ、施工安定性、施工
仕上りに優れた作用効果を有する。The rock wool sound-absorbing ceiling panel of the present invention for directly tightening screws is composed of 64 to 90% by weight of rock wool, 5 to 13% by weight of jell (beating pulp), and 2 to 10% by weight of an organic binder in all components. Containing 2 to 20% by weight of an inorganic filler and 0.2 to 1.0% by weight of a coagulant, the total amount of all organic components in all the components is 16% by weight or less, and the density is 400 to 5%.
00 kg / m 3 , and the organic binder is starch,
At least one selected from polyvinyl alcohol, vinyl acetate emulsion, acrylic emulsion, SBR emulsion, CMC and guar gum is contained in the total organic binder in an amount of 70% by weight or more, and the melamine resin and the urea resin are 30% by weight in the total organic binder. Excellent effect on screw tightening property by adding 5% or more of the jewel, the total amount of all organic components in all the composition components is 16% by weight or less (however, a flame retardant such as aluminum hydroxide is compounded. In this case, the total amount of all organic components is 20% by weight or less), which results in fire resistance more than quasi-incombustible, excellent bending strength due to the density of 400 to 500 kg / m 3 , and causes surface contamination. Actions such as improvement of ventilation resistance are synergistic, cutting workability is good, screws can be installed efficiently on metal fittings such as bars, etc. It has an effect.
【００１６】[0016]
［実施例１〜７］本発明の成分を表１に示す所定の配合
比で調合し、スラリー状の混合原料とした後長網式抄造
機で抄造し脱水乾燥して原板を得た。更にこの原板の表
面を切削し本発明のビス留め直張り用ロックウール吸音
天井板を得た。[Examples 1 to 7] The components of the present invention were blended at a predetermined mixing ratio shown in Table 1, and were made into a slurry-like mixed raw material. Further, the surface of the original plate was cut to obtain a rock wool sound-absorbing ceiling plate for direct fastening with screws according to the present invention.
【００１７】［比較例１〜５］比較例の成分を表１に示
す所定の配合比で調合し、スラリー状の混合原料とした
後長網式抄造機で抄造し脱水乾燥して原板を得た。更に
この原板の表面を切削し比較用のビス留め直張り用ロッ
クウール吸音天井板を得た。[Comparative Examples 1 to 5] The components of Comparative Examples were prepared at a predetermined compounding ratio shown in Table 1, converted into a slurry-like mixed raw material, and then subjected to papermaking with a fourdrinier papermaking machine, followed by dehydration and drying to obtain an original plate. Was. Further, the surface of this original plate was cut to obtain a rock wool sound-absorbing ceiling plate for comparison with screw fastening for direct tension.
【００１８】実施例１〜６および比較例１〜５で得たビ
ス留め直張り用ロックウール吸音天井板それぞれについ
て物性を測定し表１に示した。The physical properties of each of the rock wool sound-absorbing ceiling panels for directly fastening screws obtained in Examples 1 to 6 and Comparative Examples 1 to 5 were measured and the results are shown in Table 1.
【００１９】［試験］ 曲げ強度 ＪＩＳ Ａ １４０８（５号試験
体）１０ｋｇｆ以上を合格 ○印とした。 釘逆引抜強度 天井板にビスをネジ込み、抜け出
たビスの先端をチャックで挟んで引張荷重を加え、最大
値を読む。１０ｋｇｆ以上を合格 ○印とした。 フック吊下げ力 天井板にフックをネジ込み、フッ
クに静荷重をかけたときの最大保持荷重を読む。１０ｋ
ｇｆ以上を合格 ○印とした。 表面硬度 ビス留めしその跡を目視判定 ボード表面にゴムストッパーの跡が付かないのを合格○
印とした。 表面汚れ 底面６０ｃｍ×６０ｃｍ、高さ１
５０ｃｍの密閉箱の中間に天井板を置き最上面に換気扇
をセットする。底面部でタバコの煙を発生させながら換
気扇をまわし、延べ２４時間運転後天井板の表面を観察
する。顕著な汚れがない状態を合格 ○印とした。 防火性能 建設省４５年告示１８２８号によ
る防火性試験。準不燃以上を合格 ○印とした。 切断加工性 厚さ９ｍｍの試料をカッターで切
断 １工程（１回）で切断できる場合を合格 ○印とした。 吸音性 残響室法 吸音率０．３以上を合格 ○印とした。 耐湿たわみ 鋼製下地に間隔３００ｍｍでボー
ドをビスにて留め付ける。３０℃８０％の環境下で４８
時間静置し、たわみを測定する。０．５ｍｍ以内のもの
を合格 ○印とした。[Test] Bending strength JIS A 1408 (No. 5 specimen) passed 10 kgf or more. Nail reverse pull-out strength Screw a screw into the ceiling plate, pinch the tip of the screw that has come out with a chuck, apply a tensile load, and read the maximum value. 10 kgf or more was evaluated as OK. Hook hanging force Read the maximum holding load when a hook is screwed into the ceiling plate and a static load is applied to the hook. 10k
gf or more was passed. Surface hardness Screwed and visually checked for traces Passed when there is no trace of rubber stopper on the board surface ○
Marked. Surface dirt Bottom 60cm x 60cm, height 1
Place a ceiling plate in the middle of a 50 cm closed box and set a ventilation fan on the top surface. The ventilation fan is turned while generating cigarette smoke at the bottom, and after a total of 24 hours of operation, the surface of the ceiling panel is observed. A state where there was no noticeable dirt was evaluated as "good". Fireproof performance Fireproof test according to Notification 1828 of the Ministry of Construction, 1945. Passed quasi-noncombustible or higher. Cutting workability A sample having a thickness of 9 mm is cut with a cutter. Sound absorption Reverberation room method Sound absorption coefficient of 0.3 or more was passed. The board is fastened to the steel base with screws at 300mm intervals. 48 in an environment of 30 ° C and 80%
Let stand for a while and measure the deflection. Those that were within 0.5 mm were marked with a pass.
【００２０】[0020]
【表１】 [Table 1]
【００２１】[0021]
【発明の効果】本発明のビス留め直張り用ロックウール
吸音天井板は、ビス締まりが甘い、地震等の振動により
緩んで落下する、ビス留めのスクリュウドライバーのビ
ットストッパー跡が顕著について見苦しい、掲示物とフ
ックを使って吊り下げた場合大きくタワんだり、掲示物
が落下する、室内と天井裏の呼吸による天井板表面の汚
染現象などの問題が解決されたので石膏ボードを下張り
する必要はなく直接天井ビスで留めることができる。The rock wool sound-absorbing ceiling panel for directly tightening screws according to the present invention has a loose screw and loosely falls due to vibrations such as earthquakes. When hanging with objects and hooks, there is no need to underlay gypsum board, as problems such as large fluttering, falling of signs, and contamination of the ceiling panel surface due to breathing inside and behind the ceiling have been resolved. Can be fixed directly with ceiling screws.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) E04B 9/04 E04B 1/82 E04B 1/86──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int.Cl. 6 , DB name) E04B 9/04 E04B 1/82 E04B 1/86
Claims (1)
重量％、ジエル（叩解パルプ）５〜１３重量％、有機結
合剤２〜１０重量％、無機充填剤２〜２０重量％、凝集
剤０．２〜１．０重量％を含有し、全組成成分中の全有
機分の合計量が１６重量％以下（但し、難燃剤を併用し
た場合は２０重量％以下）であり、密度が４００〜５０
０ｋｇ／ｍ3 であり、さらに前記有機結合剤が澱粉、ポ
リビニルアルコール、酢ビエマルジョン、アクリルエマ
ルジョン、ＳＢＲエマルジョン、ＣＭＣ、ガーガムから
選ばれた少なくとも１種以上を全有機結合剤中７０重量
％以上含み、メラミン樹脂及び尿素樹脂は全有機結合剤
中３０重量％を越えないことを特徴とするビス留め直張
り用ロックウール吸音天井板1. Rock wool 64-90 in all components
% By weight, 5 to 13% by weight of diel (beating pulp), 2 to 10% by weight of organic binder, 2 to 20% by weight of inorganic filler, 0.2 to 1.0% by weight of coagulant The total amount of all organic components in the composition is 16% by weight or less (however, 20% by weight or less when a flame retardant is used in combination), and the density is
0 kg / m 3 , and the organic binder further contains at least one selected from starch, polyvinyl alcohol, vinyl acetate emulsion, acrylic emulsion, SBR emulsion, CMC, and guar gum in an amount of 70% by weight or more based on the total organic binder. Rock wool sound-absorbing ceiling panel for direct fastening with screws, characterized in that melamine resin and urea resin do not exceed 30% by weight in the total organic binder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6198984A JP2803572B2 (en) | 1994-08-02 | 1994-08-02 | Rock wool sound-absorbing ceiling panel for screw fastening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6198984A JP2803572B2 (en) | 1994-08-02 | 1994-08-02 | Rock wool sound-absorbing ceiling panel for screw fastening |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0842046A JPH0842046A (en) | 1996-02-13 |
| JP2803572B2 true JP2803572B2 (en) | 1998-09-24 |
Family
ID=16400185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6198984A Expired - Lifetime JP2803572B2 (en) | 1994-08-02 | 1994-08-02 | Rock wool sound-absorbing ceiling panel for screw fastening |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2803572B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4696343B2 (en) * | 2000-07-31 | 2011-06-08 | 日東紡績株式会社 | Rock wool board |
| JP6050209B2 (en) * | 2013-09-30 | 2016-12-21 | 大建工業株式会社 | Ceiling structure |
-
1994
- 1994-08-02 JP JP6198984A patent/JP2803572B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0842046A (en) | 1996-02-13 |
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