JPH0152178B2 - - Google Patents
Info
- Publication number
- JPH0152178B2 JPH0152178B2 JP56090760A JP9076081A JPH0152178B2 JP H0152178 B2 JPH0152178 B2 JP H0152178B2 JP 56090760 A JP56090760 A JP 56090760A JP 9076081 A JP9076081 A JP 9076081A JP H0152178 B2 JPH0152178 B2 JP H0152178B2
- Authority
- JP
- Japan
- Prior art keywords
- thermoplastic resin
- sound
- laminated
- molded
- sheet
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/08—Insulating elements, e.g. for sound insulation
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は車輛、特に自動車ダツシユパネルから
フロアー全面にかけての成形防音内装材に関し、
詳細には、著しく優れた遮音性を有し、かつ成形
性及び形状保持性に優れた車輛用成形防音内装材
及びその製造方法に関する。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a molded soundproof interior material for vehicles, particularly from the automobile dash panel to the entire floor.
In particular, the present invention relates to a molded soundproof interior material for vehicles that has extremely excellent soundproofing properties, excellent moldability and shape retention, and a method for producing the same.
従来、自動車のフロアー面には制振効果を目的
とした瀝青系のシート状物が中塗乾燥炉の炉温を
利用して加熱融着され、その上に艤装ラインにて
カーペツトが、あるいはクツシヨン材とカーペツ
トの積層物が載置されて用いられていた。また他
の方策として自動車フロアーにクツシヨン材と組
み合わせて載置する例えばタフテツドカーペツト
の裏打ち層を薄膜のポリエチレン層に代えてエチ
レン−酢酸ビニル共重合体及び充てん剤からなる
組成物をカーペツト製造工程において従来のもの
より厚く塗布したものを用い制振効果を期する方
法が試みられている。
Conventionally, a bituminous sheet-like material for the purpose of damping vibration is heat-fused to the floor surface of an automobile using the furnace temperature of an intermediate coating drying oven, and carpet or cushioning material is applied on top of it in the outfitting line. A laminate of carpet and carpet was used. Another method is to replace the backing layer of a tufted carpet with a thin polyethylene layer, which is placed on an automobile floor in combination with a cushioning material, by using a composition consisting of an ethylene-vinyl acetate copolymer and a filler during the carpet manufacturing process. Attempts have been made to use a material coated thicker than conventional methods in order to achieve a damping effect.
しかしながら前者にあつては、車輛の重量増と
なり軽量化傾向に逆行し、後者にあつては、充て
ん剤の混入量に限界があるため高遮音性が得がた
く、エチレン−酢酸ビニル共重合体組成物の膜厚
を厚くすると極めて高価なものとなるという欠点
がある。
However, in the case of the former, the weight of the vehicle increases, going against the trend of weight reduction, and in the case of the latter, it is difficult to obtain high sound insulation properties because there is a limit to the amount of filler mixed in, and ethylene-vinyl acetate copolymer A drawback of increasing the film thickness of the composition is that it becomes extremely expensive.
本発明者らは、かかる実情に鑑み鋭意研究の結
果、高遮音性と成形性の両性能を十分に満足し、
かつ優れた内装床材として経済性に優れた車輛用
成形防音内装材及びその製造方法を提供すること
にある。
In view of this situation, the inventors of the present invention have conducted intensive research, and as a result, have fully satisfied both the performance of high sound insulation and formability.
Another object of the present invention is to provide a molded soundproof interior material for a vehicle that is excellent in economic efficiency as an excellent interior flooring material, and a method for manufacturing the same.
即ち、本発明の要旨とするところは、
(イ) 熱可塑性樹脂フイルム裏打ちカーペツト、
(ロ) 熱可塑性樹脂層でその両面がラミネートされ
た瀝青系物質及び充填剤を主成分としてなる遮
音性シート状物、
(ハ) 嵩高性不織布、ニードルフエルトから選ばれ
るクツシヨン材を順次積層し成形してなる車輛
用成形防音内装材、及び
嵩高性不織布、ニードルフエルトから選ばれる
クツシヨン材の上に、予備加熱を施した熱可塑性
樹脂層でその両面がラミネートされた瀝青系物質
及び充填剤を主成分としてなる遮音性シート状物
を載置し、更に熱可塑性樹脂フイルム裏打ちカー
ペツトを順次積層し成形してなる車輛用成形防音
内装材の製造方法、
に存する。 That is, the gist of the present invention is as follows: (a) a carpet lined with a thermoplastic resin film; and (b) a sound-insulating sheet whose main components are a bituminous material and a filler, both sides of which are laminated with thermoplastic resin layers. (c) A molded soundproof interior material for a vehicle, which is formed by sequentially laminating and molding cushioning materials selected from bulky nonwoven fabrics and needle felt; and Preheating the cushioning material selected from bulky nonwoven fabrics and needle felt. A vehicle is formed by placing a sound-insulating sheet-like material mainly composed of a bituminous material and a filler, which is laminated on both sides with a thermoplastic resin layer, and then sequentially laminating and molding a carpet lined with a thermoplastic resin film. A method for manufacturing a molded soundproof interior material for
本発明において用いうる熱可塑性樹脂フイルム
裏打ちカーペツトは、例えばポリエチレン樹脂裏
打ちタフテツドカーペツトを用いうる。 The thermoplastic resin film-backed carpet that can be used in the present invention may be, for example, a polyethylene resin-backed tufted carpet.
本発明の成形防音内装材の中間層として用い得
る遮音性シート状物は、瀝青系のシート状物の両
面を熱可塑性樹脂シートでラミネートした形のサ
ンドイツチタイプであることを必須とするもの
で、熱可塑性樹脂シートは成形性を付与すると共
に瀝青質がカーペツト層やクツシヨン層ににじみ
でてくるのを防ぐ働きを有する。 The sound-insulating sheet material that can be used as the intermediate layer of the molded sound-insulating interior material of the present invention must be of the sandwich type in which both sides of a bituminous sheet material are laminated with thermoplastic resin sheets. The thermoplastic resin sheet not only provides moldability but also has the function of preventing bituminous material from bleeding into the carpet layer or cushion layer.
瀝青系シート状物は、ストレートアスフアル
ト、ブロンアスフアルトの１種以上と変性用の石
油樹脂等の合成樹脂、SBR等のゴム成分を加熱
溶融混合したバインダー中に、タルク、炭酸カル
シウム、クレー、硫酸バリウム等をバインダー
100重量部に対して60〜250重量部配合したものを
用いる。瀝青系シート状物の両面をラミネートす
る熱可塑性樹脂シートとしてはポリエチレン、ポ
リプロピレン、塩化ビニル、酢酸ビニル−エチレ
ン共重合樹脂等のシートであつて良く、該シート
の膜厚は0.1〜1.0mmが好ましい。該シートは瀝青
系シート状物の製造時でいまだ軟化性が残つてい
る段階で瀝青系シートの上下に当接し、押圧ラミ
ネートする。 Bituminous sheet materials are made of talc, calcium carbonate, clay, and barium sulfate in a binder made by heating and melting and mixing one or more of straight asphalt and blown asphalt, synthetic resin such as petroleum resin for modification, and rubber components such as SBR. binder etc.
A blend of 60 to 250 parts by weight per 100 parts by weight is used. The thermoplastic resin sheet laminated on both sides of the bituminous sheet may be a sheet of polyethylene, polypropylene, vinyl chloride, vinyl acetate-ethylene copolymer resin, etc., and the film thickness of the sheet is preferably 0.1 to 1.0 mm. . During the production of the bituminous sheet, the sheet is brought into contact with the top and bottom of the bituminous sheet and laminated by pressure while the sheet still has a softening property.
本発明に用いるクツシヨン材は、嵩高性不織布
もしくはニードルフエルト等でよく、嵩高性不織
布は動物性、植物性、合成樹脂性及び鉱物性の不
連続繊維材料の１種もしくは２種以上よりなる混
合物および熱硬化性樹脂よりなる結合剤を主体と
してなり、結合剤をほぼ硬化せしめて吸音性およ
びクツシヨン性を有する状態となしておくことは
大切である。ニードルフエルトは動物性、植物
性、合成樹脂性及び鉱物性の不連続繊維材料の１
種もしくは２種以上の混合物よりなるフリースに
ニードルパンチを加えて得たもので良い。該状態
における嵩高性不織布およびニードルフエルトの
厚さは８〜50mmであり、面密度は0.4〜４Kg／m2
の範囲にあることが好ましい。 The cushion material used in the present invention may be a bulky nonwoven fabric or needle felt, and the bulky nonwoven fabric is a mixture of one or more of animal, vegetable, synthetic resin, and mineral discontinuous fiber materials. The binder is mainly composed of a thermosetting resin, and it is important that the binder is almost cured to have sound absorption and cushioning properties. Needle felt is one of animal, vegetable, synthetic resin and mineral discontinuous fiber materials.
It may be obtained by needle punching a fleece made of seeds or a mixture of two or more seeds. The bulky nonwoven fabric and needle felt in this state have a thickness of 8 to 50 mm, and an areal density of 0.4 to 4 Kg/m 2
It is preferable that it is in the range of .
次に本発明の製造方法について説明する。 Next, the manufacturing method of the present invention will be explained.
前記した嵩高性不織布またはニードルフエルト
等のクツシヨン材を成形金型の下面に載置し、次
いで遮音性シート状物の両面を予熱板（加熱状態
の鉄板）または遠赤外等の加熱手段を用いて80〜
150℃にて20〜120秒間、加熱したものをクツシヨ
ン材の上に載置し、引続きカーペツト裏打ち面に
同様の方法で加熱し、あるいは加熱なしにそのま
まの状態で裏打ち面を遮音性シート面が接するよ
うに載置した後、直ちに成形金型の上型を下降せ
しめ、冷金型にてゼロプレス状態に30〜180秒間
保ち圧縮成形を行う。金型から取り出した後、最
終裁断を経て本発明になる車輛用成形防音内装材
を得る。 A cushion material such as the bulky nonwoven fabric or needle felt described above is placed on the bottom surface of a mold, and then both sides of the sound-insulating sheet are heated using a preheating plate (heated iron plate) or heating means such as far infrared rays. te 80～
Heat it at 150℃ for 20 to 120 seconds and place it on the cushion material, then heat it in the same way on the carpet backing surface, or leave it as it is without heating and apply the sound insulation sheet surface to the backing surface. After placing the molds so that they are in contact with each other, the upper mold of the molding mold is immediately lowered, and the cold mold is kept in a zero press state for 30 to 180 seconds to perform compression molding. After being removed from the mold, the molded soundproof interior material for vehicles of the present invention is obtained through final cutting.
以下に実施例を用いて本発明のより詳細な説明
に供する。当然のことながら本発明は実施例のみ
に限定されるものでないことは言うまでもないこ
とである。
The present invention will be explained in more detail below using examples. It goes without saying that the present invention is not limited to the examples.
実施例 １
ブロンアスフアルト90重量部と石油樹脂10重量
部を加熱溶融混合してバインダーとなし、次いで
アスベスト30重量部及びタルク120重量部と前記
バインダーとを保温混練機にて混練し、無端ベル
ト上に押出し、次いで第１カレンダーにて２mm厚
に調整し、次いで0.2mm厚のポリエチレンシート
をその両面に配し、第２カレンダーにて押圧しそ
の両面にポリエチレンシートがラミネートされた
厚さ2.4mmで面密度3.2Kg／m2の遮音性シート状物
を得た。Example 1 90 parts by weight of blown asphalt and 10 parts by weight of petroleum resin were heated and melted and mixed to form a binder.Then, 30 parts by weight of asbestos and 120 parts by weight of talc were kneaded with the binder using a heat-retaining kneader, and then kneaded on an endless belt. Then, the first calender was used to adjust the thickness to 2 mm, and then 0.2 mm thick polyethylene sheets were placed on both sides, and the second calender was used to press the sheets to a thickness of 2.4 mm with polyethylene sheets laminated on both sides. A sound-insulating sheet material with an areal density of 3.2 Kg/m 2 was obtained.
反毛30重量部、落綿50重量部を開繊混合し、融
点150℃で硬化温度180℃のノボラツク型紛末フエ
ノール樹脂20重量部を散布混合し、フリース形成
機でフリースとなした後、190℃の加熱炉を通し
て厚さ22mm、面密度940g／m2の嵩高性不織布を
得た。 After opening and mixing 30 parts by weight of recycled wool and 50 parts by weight of fallen cotton, 20 parts by weight of novolak-type powdered phenolic resin with a melting point of 150°C and a curing temperature of 180°C was sprinkled and mixed, and a fleece was formed using a fleece forming machine. A bulky nonwoven fabric with a thickness of 22 mm and an areal density of 940 g/m 2 was obtained through a heating furnace at 190°C.
成形機の下金型上に嵩高性不織布を載せ、次い
で自動車のフロントフロアーからダツシユパネル
にかけての形状に即して予め裁断した遮音性シー
ト状物に赤外線ランプを用いて110℃で２分間の
予備加熱を施して後、嵩高性不織布上に載置し、
更にポリエチレンで裏打ちされたタフテツドカー
ペツトを載置した後、直ちに上金型を下降せしめ
て10Kg／cm2の加圧力にてゼロプレス状態に２分間
保ち加圧成形を行つた。金型より取り出して後、
フロントフロアーからダツシユパネルにかけての
形状に即して成形物を裁断し、本発明になる車輛
用成形防音内装材を得た。 The bulky nonwoven fabric is placed on the lower mold of the molding machine, and then the sound-insulating sheet material, which has been cut in advance to match the shape of the vehicle from the front floor to the dash panel, is preheated at 110°C for 2 minutes using an infrared lamp. After applying, it is placed on a bulky nonwoven fabric,
Further, after placing a tufted carpet lined with polyethylene, the upper mold was immediately lowered and pressure molding was carried out by maintaining a zero press state for 2 minutes at a pressure of 10 kg/cm 2 . After removing from the mold,
The molded product was cut according to the shape from the front floor to the dash panel to obtain a molded soundproof interior material for a vehicle according to the present invention.
本発明により得た車輛用成形防音内装材をFF
車のフロントフロアーからダツシユパネルにかけ
ての位置に装着し、実車走行により騒音の低下度
合いを測定したところ0.5dBの低下があれば一応
の効果が得られたと言えるところ、3dBの騒音低
下が認められた。 FF molded soundproof interior material for vehicles obtained according to the present invention
When installed in a position from the front floor of a car to the dash panel, the degree of noise reduction was measured by driving an actual vehicle.A 3 dB reduction in noise was observed, although a 0.5 dB reduction would have been considered effective.
本発明の車輛用成形防音内装材は、遮音性シー
ト状物の遮音効果とクツシヨン材の吸音機能との
相乗効果により優れた防音機能を顕現するととも
に遮音性シート状物の両面にラミネートされた熱
可塑性樹脂シートにより成形後の形状保持性にも
優れたものである。
The molded sound-insulating interior material for vehicles of the present invention exhibits an excellent sound-insulating function due to the synergistic effect of the sound-insulating effect of the sound-insulating sheet and the sound-absorbing function of the cushion material. The plastic resin sheet also provides excellent shape retention after molding.
Claims (1)
ト、 (ロ) 熱可塑性樹脂層でその両面がラミネートされ
た瀝青系物質及び充てん剤を主成分としてなる
遮音性シート状物、 (ハ) 嵩高性不織布、ニードルフエルトから選ばれ
るクツシヨン材を順次積層し成形してなる車輛
用成形防音内装材。 ２ 嵩高性不織布、ニードルフエルトから選ばれ
るクツシヨン材の上に、予備加熱を施した熱可塑
性樹脂層でその両面がラミネートされた瀝青系物
質及び充てん剤を主成分としてなる遮音性シート
状物を載置し、更に熱可塑性樹脂フイルム裏打ち
カーペツトを順次積層し圧縮成形してなることを
特徴とする車輛用成形防音内装材の製造方法。[Scope of Claims] 1. (a) A carpet lined with a thermoplastic resin film; (b) A sound-insulating sheet-like material whose main components are a bituminous material and a filler, both sides of which are laminated with a thermoplastic resin layer; ) A molded soundproof interior material for vehicles made by sequentially laminating and molding cushioning materials selected from bulky nonwoven fabrics and needle felt. 2. A sound-insulating sheet-like material mainly composed of a bituminous material and a filler is laminated on both sides with a preheated thermoplastic resin layer on a cushion material selected from bulky non-woven fabric and needle felt. 1. A method for manufacturing a molded soundproof interior material for a vehicle, characterized in that a carpet lined with a thermoplastic resin film is sequentially laminated and compression molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56090760A JPS57205251A (en) | 1981-06-15 | 1981-06-15 | Molded soundproofing material for car and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56090760A JPS57205251A (en) | 1981-06-15 | 1981-06-15 | Molded soundproofing material for car and manufacture thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57205251A JPS57205251A (en) | 1982-12-16 |
| JPH0152178B2 true JPH0152178B2 (en) | 1989-11-08 |
Family
ID=14007556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56090760A Granted JPS57205251A (en) | 1981-06-15 | 1981-06-15 | Molded soundproofing material for car and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57205251A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5865079A (en) * | 1981-10-09 | 1983-04-18 | 住江織物株式会社 | Backing carpet for automobile |
| JPS61225377A (en) * | 1985-03-25 | 1986-10-07 | Ikeda Bussan Co Ltd | Production of shaped carpet |
| JP3519588B2 (en) | 1997-09-12 | 2004-04-19 | カネボウ株式会社 | Carpet material and method of manufacturing the same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5743702Y2 (en) * | 1978-04-07 | 1982-09-27 | ||
| JPS597152Y2 (en) * | 1978-12-23 | 1984-03-05 | 杉原縫製工業株式会社 | Composite mat for automobiles |
| JPS5930545B2 (en) * | 1979-05-31 | 1984-07-27 | 宇部興産株式会社 | composite sheet |
-
1981
- 1981-06-15 JP JP56090760A patent/JPS57205251A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57205251A (en) | 1982-12-16 |
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