JPH0694183B2 - Lightweight soundproof material that can be deep-drawn - Google Patents
Lightweight soundproof material that can be deep-drawnInfo
- Publication number
- JPH0694183B2 JPH0694183B2 JP3077189A JP7718991A JPH0694183B2 JP H0694183 B2 JPH0694183 B2 JP H0694183B2 JP 3077189 A JP3077189 A JP 3077189A JP 7718991 A JP7718991 A JP 7718991A JP H0694183 B2 JPH0694183 B2 JP H0694183B2
- Authority
- JP
- Japan
- Prior art keywords
- resin
- integrated
- skin layer
- honeycomb plate
- deep
- 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 - Fee Related
Links
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、軽量防音材に関し、詳
細には防音材自体の重量を軽減し、更に激しい凹凸にも
追従し得る、深絞り成形性にも優れた軽量防音材に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lightweight soundproofing material, and more particularly to a lightweight soundproofing material which is excellent in deep drawability and which can reduce the weight of the soundproofing material itself and can follow severe irregularities.
【0002】[0002]
【従来の技術】従来より、例えば、自動車用の天井材と
しては、フェルトを単独でもしくは不織布表皮材と一体
化して加圧成形した成形天井材が使用されている。また
近時、ハニカム板1をフェルト4によって挾置し、不織
布表皮材6と一体化して加熱加圧成形してなる成形天井
材が製造されている。2. Description of the Related Art Conventionally, as a ceiling material for automobiles, for example, a molded ceiling material has been used in which a felt is singly or integrally molded with a non-woven fabric skin material and pressure-molded. In addition, recently, a molded ceiling material has been manufactured in which the honeycomb plate 1 is placed with the felt 4 and is integrated with the non-woven fabric skin material 6 to be heat-pressed.
【0003】しかしながら、フェルト単独の成形天井材
では、深絞り成形性こそ優れるが、吸音性、剛性共に満
足な性能は得られなかった。また、ハニカム板1をフェ
ルト4によって挾置し、不織布表皮材6と一体化した成
形天井材は、優れた吸音性と剛性を有するものの防音材
自体の重量が増加するという欠点があった。However, although the molded ceiling material made of only felt is excellent in deep-drawing formability, satisfactory performance in sound absorption and rigidity cannot be obtained. Further, the molded ceiling material in which the honeycomb plate 1 is sandwiched by the felt 4 and integrated with the non-woven fabric skin material 6 has an excellent sound absorbing property and rigidity, but has a drawback that the weight of the sound insulating material itself increases.
【0004】[0004]
【発明が解決しようとする課題】本発明の課題は、自動
車重量の一層の軽量化を顕現すべく、防音材重量を軽量
化しつつ、吸音性、剛性にも優れ、更には優れた防音材
の深絞り成形性を実現する点にある。The object of the present invention is to reduce the weight of the soundproofing material in order to further reduce the weight of the vehicle, and at the same time, the soundproofing material is excellent in sound absorbing property and rigidity. The point is to achieve deep drawability.
【0005】[0005]
【課題を解決するための手段】かかる課題を解決せんと
して、本発明者らは鋭意研究の結果、ハニカム板1を挾
置するフェルト4の片面を樹脂綿2及び表皮層3に代え
たものであり、しかして本発明の要旨は、以下の諸項目
に存する。As a solution to this problem, the inventors of the present invention have conducted intensive studies and found that one side of the felt 4 on which the honeycomb plate 1 is placed is replaced with a resin cotton 2 and a skin layer 3. Therefore, the gist of the present invention lies in the following items.
【0006】ハニカム板1の片方の面をフェルト4、不
織布表皮材6と一体化し、他の一方の面を熱硬化性樹脂
を含浸した樹脂綿2、表皮層3と一体化してなることを
特徴とする深絞り可能な軽量防音材。[0006] One side of the honeycomb plate 1 is integrated with the felt 4 and the non-woven fabric skin material 6, and the other side is integrated with the resin cotton 2 impregnated with the thermosetting resin and the skin layer 3. A lightweight soundproof material that can be deep drawn.
【0007】樹脂綿2と表皮層3を一体化後、熱硬化性
樹脂中に含浸し、乾燥せしめた後に使用してなることを
特徴とする深絞り可能な軽量防音材。A lightweight soundproof material capable of deep drawing, which is characterized in that after the resin cotton 2 and the skin layer 3 are integrated, they are used after being impregnated in a thermosetting resin and dried.
【0008】表皮層3として紙、ガラスマット、ガラス
ペーパーを用いてなることを特徴とする深絞り可能な軽
量防音材。A light-weight soundproof material capable of deep drawing, characterized in that paper, glass mat, or glass paper is used as the skin layer 3.
【0009】ハニカム板1の少なくとも片面に予め接着
剤5を塗布してなることを特徴とする深絞り可能な軽量
防音材。A lightweight soundproof material capable of deep drawing, characterized in that an adhesive 5 is applied in advance on at least one surface of a honeycomb plate 1.
【0010】本発明の必須構成成分である樹脂綿2と
は、樹脂製繊維を軽く圧縮成形したものであり、ポリエ
ステル系、ポリアミド系、ポリビニルアルコール系、ポ
リ塩化ビニル系繊維が例示できる。The resin cotton 2 which is an essential constituent of the present invention is a resin fiber which is lightly compression molded, and examples thereof include polyester fiber, polyamide fiber, polyvinyl alcohol fiber and polyvinyl chloride fiber.
【0011】表皮層3としては、フェルトの使用時に比
べて重量の軽減ができることを必須とし、形状保持性、
表面補強の機能を併せて有するものが良く、ガラスペー
パー、ガラスマット、紙等が例示できる。As the skin layer 3, it is indispensable that the weight can be reduced as compared with the case where the felt is used.
It is preferable that it also has a surface reinforcing function, and examples thereof include glass paper, glass mat, and paper.
【0012】樹脂綿2と表皮層3は、予め熱硬化性樹脂
を含浸していることを必須とする。熱硬化性樹脂は、フ
ェノール樹脂、ポリエルテル樹脂、ウレタン樹脂、メラ
ミン樹脂、パラフィン樹脂等であり、含浸方法として
は、浸漬または塗布が好ましい。樹脂綿2の熱硬化性樹
脂含浸量は、ハニカム板1との接着を確実なものとする
だけの量を必要とし、樹脂綿重量の1〜100%程度が
好ましく、ハニカム板1のセルへの接着剤塗布の有無に
より含浸量を選択すれば良い。It is essential that the resin cotton 2 and the skin layer 3 are previously impregnated with a thermosetting resin. The thermosetting resin is a phenol resin, a polyelter resin, a urethane resin, a melamine resin, a paraffin resin or the like, and the impregnation method is preferably dipping or coating. The amount of the thermosetting resin impregnated in the resin cotton 2 is required to ensure the adhesion with the honeycomb plate 1, and is preferably about 1 to 100% of the weight of the resin cotton. The amount of impregnation may be selected depending on whether or not the adhesive is applied.
【0013】ハニカム板1は、クラフト紙、Kライナー
紙、ボール紙等の紙質材やプラスチックをハニカム構造
にしたものが成形性の点で好ましい。The honeycomb plate 1 is preferably made of a paper material such as kraft paper, K-liner paper, cardboard or the like or a plastic material having a honeycomb structure in terms of formability.
【0014】ハニカム板1の一方の面に一体化するフェ
ルト4は、動物性、植物性、合成樹脂性の不連続繊維材
料の一種もしくは二種以上と熱硬化性樹脂等の結合剤を
主体としてなるものである。The felt 4 integrated with one surface of the honeycomb plate 1 is mainly composed of one or more discontinuous fiber materials of animal, vegetable and synthetic resin and a binder such as thermosetting resin. It will be.
【0015】不織布表皮材7はフェルト4と同様の材料
からなる薄葉状の不織布の使用が好ましい。As the non-woven fabric skin material 7, it is preferable to use a thin leaf-like non-woven fabric made of the same material as the felt 4.
【0016】樹脂綿2とハニカム板1の間に吸音層を挾
置することは、吸音性能向上の点から好ましく、従来か
ら用いられていたフェルト4の半分程度の厚みのものや
ポリスチレン、ポリプロピレン、ポリウレタン等のフォ
ーム材を用いる。It is preferable to place a sound absorbing layer between the resin cotton 2 and the honeycomb plate 1 from the viewpoint of improving sound absorbing performance, and one having a thickness about half that of the felt 4 conventionally used, polystyrene, polypropylene, A foam material such as polyurethane is used.
【0017】各構成材料の面密度は、熱硬化性樹脂の含
浸状態で、表皮層3は30〜150g/m2 、樹脂綿2
は30〜100g/m2 であり、また従来より使用され
ているフェルト4は350〜1000g/m2 程度であ
る。The surface densities of the constituent materials are 30 to 150 g / m 2 for the skin layer 3 and 2 for the resin cotton when the thermosetting resin is impregnated.
Is about 30 to 100 g / m 2 , and the felt 4 used conventionally is about 350 to 1000 g / m 2 .
【0018】ハニカム板1と樹脂綿2またはフェルト4
との接着は、特に接着剤を塗布することなく加熱加圧成
形するのみでも良いが、ハニカム板1のセルに予めホッ
トメルト又は塗布型接着剤5を用いることは、接着をよ
り強固とする点で好ましい。Honeycomb plate 1 and resin cotton 2 or felt 4
The adhesion with the adhesive may be performed only by heating and pressurizing without applying an adhesive, but using hot melt or the application adhesive 5 in advance in the cells of the honeycomb plate 1 makes the adhesion stronger. Is preferred.
【0019】かかる各構成材料を一体成形する方法とし
ては、例えば、フェルト4と不織布表皮材7の一体化物
をハニカム板1の一方の面に設け、他方の面には樹脂綿
2と表皮層3を一体化したものを設けることによりハニ
カム板1を挾置した場合、140〜250℃で30秒〜
2分間、1〜200kg/cm2の条件が好ましい。As a method of integrally molding the respective constituent materials, for example, an integrated product of the felt 4 and the non-woven fabric skin material 7 is provided on one surface of the honeycomb plate 1 and the resin cotton 2 and the skin layer 3 on the other surface. When the honeycomb plate 1 is placed by providing an integrated body, the temperature is 140 to 250 ° C. for 30 seconds to
The condition of 1 to 200 kg / cm 2 for 2 minutes is preferable.
【0020】[0020]
【実施例】以下に実施例を挙げ本発明のより詳細な理解
に供する。当然のことながら本発明は以下の実施例のみ
に限定されるものではない。EXAMPLES The following examples are provided for a more detailed understanding of the present invention. Naturally, the invention is not limited to the following examples.
【0021】[0021]
【実施例1】ポリエステル系繊維からなる樹脂綿とガラ
スペーパー製の表皮層を一体化し、フェノール樹脂中に
含浸後、乾燥せしめ、一体化物Aとなした。ボール紙製
のハニカム板の一方の面に500g/m2 の嵩高性不織
布と50g/m2 の不織布表皮材の一体化物を設け、他
方の面は樹脂綿と表皮層の一体化物Aを設けた後、20
0℃で45秒、5kg/cm2の条件で加圧成形し、一
体化せしめて防音材1を得た。Example 1 A resin cotton made of polyester fiber and a skin layer made of glass paper were integrated, impregnated in a phenol resin, and then dried to obtain an integrated product A. The integrated product of the bulky nonwoven fabric and 50 g / m 2 nonwoven surface material of 500 g / m 2 provided on one surface of the cardboard honeycomb plate, the other surface is provided an integrated product A resin cotton and skin layer After 20
Sound-proofing material 1 was obtained by pressure molding at 0 ° C. for 45 seconds under the condition of 5 kg / cm 2 and integrating them.
【0022】[0022]
【実施例2】ポリ塩化ビニル系繊維からなる樹脂綿とガ
ラスマット製の表皮層を一体化し、メラミン樹脂中に含
浸後、乾燥せしめ、一体化物Bとなした。プラスチック
製のハニカム板の一方の面に500g/m2 の嵩高性不
織布と50g/m2 の不織布表皮材の一体化物を設け、
他方の面は樹脂綿と表皮層の一体化物Bを設けた後、2
00℃で45秒、5kg/cm2 の条件で加圧成形し、
一体化せしめて防音材2を得た。Example 2 A resin cotton made of polyvinyl chloride fiber and a skin layer made of a glass mat were integrated, impregnated in a melamine resin and then dried to obtain an integrated product B. On one side of a plastic honeycomb plate, an integrated product of 500 g / m 2 bulky nonwoven fabric and 50 g / m 2 nonwoven fabric skin material is provided,
On the other side, after providing the integrated body B of the resin cotton and the skin layer, 2
Pressure molding at 00 ° C for 45 seconds under the condition of 5 kg / cm 2 ,
Soundproofing material 2 was obtained by being integrated.
【0023】[0023]
【比較例】ボール紙製のハニカム板の両面に嵩高性のフ
ェルトを200℃で1分、5kg/cm2 の条件で加圧
成形し、一体化せしめて防音材3を得た。Comparative Example A soundproof material 3 was obtained by press-molding bulky felt on both sides of a cardboard honeycomb plate at 200 ° C. for 1 minute under the condition of 5 kg / cm 2 and integrating them.
【0024】[0024]
【試験方法】防音材1〜防音材3の1m2 当たりの重量
を測定し、吸音率を残響室法により測定した。[Test method] The weight per 1 m 2 of the soundproof material 1 to the soundproof material 3 was measured, and the sound absorption coefficient was measured by the reverberation chamber method.
【0025】[0025]
【結果】防音材1の重量は、1050g/m2 で、吸音
率は、0.5 (250Hz)であった。防音材2の重量
は、1055g/m2 で、吸音率は、0.5 (250H
z)であった。防音材3の重量は、1200g/m2
で、吸音率は、0.5 (250Hz)であった。Results: The soundproof material 1 had a weight of 1050 g / m 2 and a sound absorption coefficient of 0.5 (250 Hz). The weight of the soundproofing material 2 is 1055 g / m 2 , and the sound absorption coefficient is 0.5 (250H
z). The weight of the soundproofing material 3 is 1200 g / m 2
The sound absorption coefficient was 0.5 (250 Hz).
【0026】[0026]
【発明の効果】本発明になる防音材は、満足な防音効果
を維持しつつ、軽量化をなし得たものである。EFFECTS OF THE INVENTION The soundproof material according to the present invention can achieve a light weight while maintaining a satisfactory soundproof effect.
【0027】[0027]
【図1】本発明になる防音材の断面図である。FIG. 1 is a sectional view of a soundproof material according to the present invention.
【図2】従来の防音材の断面図である。FIG. 2 is a cross-sectional view of a conventional soundproof material.
1 ハニカム板 2 樹脂綿 3 表皮層 4 フェルト 5 接着剤 6 不織布表皮材 1 Honeycomb board 2 Resin cotton 3 Skin layer 4 Felt 5 Adhesive 6 Nonwoven skin material
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 FI 技術表示箇所 // B29L 9:00 4F ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location // B29L 9:00 4F
Claims (4)
布表皮材と一体化し、他の一方の面を熱硬化性樹脂を含
浸した樹脂綿、表皮層と一体化してなることを特徴とす
る深絞り可能な軽量防音材。1. A depth characterized in that one surface of a honeycomb plate is integrated with a felt and a nonwoven fabric skin material, and the other surface is integrated with a thermosetting resin-impregnated resin cotton and a skin layer. A lightweight, soundproof material that can be squeezed.
脂中に含浸し、乾燥せしめた後に使用してなることを特
徴とする請求項1に記載の深絞り可能な軽量防音材。2. The light-weight soundproofing material capable of deep drawing according to claim 1, wherein the resin cotton and the skin layer are integrated and then impregnated in a thermosetting resin and dried. .
ペーパーを用いてなることを特徴とする請求項1に記載
の深絞り可能な軽量防音材。3. The deep-soundable lightweight soundproof material according to claim 1, wherein paper, glass mat, or glass paper is used as the skin layer.
剤を塗布してなることを特徴とする請求項1に記載の深
絞り可能な軽量防音材。4. The lightweight soundproofing material capable of deep drawing according to claim 1, wherein an adhesive is applied in advance to at least one surface of the honeycomb plate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3077189A JPH0694183B2 (en) | 1991-03-18 | 1991-03-18 | Lightweight soundproof material that can be deep-drawn |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3077189A JPH0694183B2 (en) | 1991-03-18 | 1991-03-18 | Lightweight soundproof material that can be deep-drawn |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH04288225A JPH04288225A (en) | 1992-10-13 |
JPH0694183B2 true JPH0694183B2 (en) | 1994-11-24 |
Family
ID=13626873
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3077189A Expired - Fee Related JPH0694183B2 (en) | 1991-03-18 | 1991-03-18 | Lightweight soundproof material that can be deep-drawn |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0694183B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1311968C (en) * | 2005-04-07 | 2007-04-25 | 福州盛山超薄石材有限公司 | Method for manufacturing superthin stone honeycomb board |
JP5208861B2 (en) * | 2009-06-09 | 2013-06-12 | 名古屋油化株式会社 | Sound-absorbing laminate and molded article of sound-absorbing laminate |
-
1991
- 1991-03-18 JP JP3077189A patent/JPH0694183B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH04288225A (en) | 1992-10-13 |
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