JPS60110439A - Inorganic and organic composite heat-insulating material - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 本発明は複合断熱材に関するもので１その目的とすると
ころは軽量、柔軟で弾性回復がよく、成形加工性がよい
はかシでなく、人体にかゆみを与えるおそれ本なく、さ
らに断熱性、結露防止性。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a composite heat insulating material. 1. The purpose of the present invention is to create a composite heat insulating material that is lightweight, flexible, has good elastic recovery, and has good moldability. It also has insulation and anti-condensation properties.

吸音性、耐久性にも優れた無機・有機複合断熱材を提供
することである。The purpose of the present invention is to provide an inorganic/organic composite heat insulating material with excellent sound absorption and durability.

従来、断熱材には、有機質材料としてウレタンフオーム
、ポリエチレンフオーム、ｍｕ材Ｒとしてガラス繊維、
ロックウール、石綿などからなるマット類が知られてい
る。これらの断熱材を例１− えば金属折板屋根用に用いる場合は、これらの断熱材を
金属板に貼シ合せた後、ロール成形機を通して所定の形
状に成形加工するか、またはあらかじめ所定の形状にロ
ール成形加工された金属板に貼り合せるか、そのいずれ
かの方法で実施されている。Conventionally, heat insulating materials include urethane foam and polyethylene foam as organic materials, glass fiber as mu material R,
Mats made of rock wool, asbestos, etc. are known. For example, when these insulation materials are used for a folded metal plate roof, these insulation materials are laminated to a metal plate and then formed into a predetermined shape using a roll forming machine, or they are formed into a predetermined shape in advance. It is carried out by either bonding it to a metal plate that has been roll-formed into a shape.

前記断熱材のうち、着根質材料であるウレタンフオーム
、ポリエチレンフオームなどは金属板に貼υ合せた後、
ロール成形ｗＡヲ通して折板に成形加工しても、折シ曲
げ部に切断やしわなどがほとんど発生することがないの
で、いわゆる先貼如加工によるロール成形ができるが、
有機質材料である大め可燃性で防火性能上使用制限をう
け、火災の際には有毒ガスが発生したシして極めて危険
である〇 一方、無機質材料であゐガラス繊維、ロックウールなど
をニードルパンチング加工によって絡合したマットは金
属板に貼り合せた後、ロール成形機を通して所定の形状
に成形加工する際に折り曲げ部が切断したシ、シわが発
生したシするため。Among the above-mentioned heat insulating materials, urethane foam, polyethylene foam, etc., which are adhesive materials, are bonded to a metal plate and then
Even if it is formed into a folded plate through roll forming wA, there are almost no cuts or wrinkles at the folded part, so roll forming can be done by the so-called tip-pasting process.
As organic materials, they are highly flammable and have restrictions on their use due to fire prevention performance, and are extremely dangerous as they generate toxic gas in the event of a fire.On the other hand, inorganic materials such as glass fiber and rock wool This is because mats that have been intertwined by needle punching are bonded to a metal plate and then passed through a roll forming machine to be formed into a predetermined shape.

２− 貼９合せ後に成形加工する。いわゆる先貼シ加工がとれ
ない欠点がめる。近来、上記無機質材料にスパンボンド
法によって得られるポリエステル系繊維不織布を表面に
精励し、ニードルパンチング加工によｐ絡合させ、しか
る後に有機繊維不織布の表面に樹脂組成物の塗膜を形成
させた断熱材が提案されている。該断勢材は無機繊維マ
ットが樹脂塗膜の施されたフィラメント状の無端に長い
有機繊維からなる不織布で覆われているので、無機繊維
マットの強度が増大されるとともに金属板との先貼り加
工によるロール成形加工を可能にし。2- After lamination 9, molding is performed. The disadvantage is that the so-called tip-stick process cannot be removed. Recently, a polyester fiber nonwoven fabric obtained by a spunbond method is applied to the surface of the above-mentioned inorganic material, p-entangled by a needle punching process, and then a coating film of a resin composition is formed on the surface of the organic fiber nonwoven fabric. Insulation materials have been proposed. In this breaking material, an inorganic fiber mat is covered with a non-woven fabric made of endlessly long filamentous organic fibers coated with a resin coating, so the strength of the inorganic fiber mat is increased and it is easy to bond with the metal plate. Enables roll forming processing.

かつ取扱い中に生ずる無機繊維の飛散および人体へのか
ゆみ防止の効果も発揮している。しかるにかかる断熱材
はフィラメント状の無端に長い有機繊維からなる不織布
と樹脂塗膜の付与が必須であり拐料の制約や工程の増加
に伴なうコスト高などの欠点がおる。加えて、かかる断
熱材にあっては断熱材の十分なる断熱性、結露防止性、
吸音性などを期待することができず、また加工時腰が強
く１柔軟性に乏しく、無機繊維の飛散による人体への３
− かゆみなどの作業性において十分とはいえない。It is also effective in preventing the scattering of inorganic fibers that occur during handling and in preventing itching on the human body. However, such a heat insulating material requires a nonwoven fabric made of endlessly long organic fibers in the form of filaments and a resin coating, and has drawbacks such as restrictions on the number of coating materials and high costs due to an increase in the number of steps. In addition, such insulation materials have sufficient insulation properties, dew condensation prevention properties,
It cannot be expected to have sound absorption properties, and it is stiff during processing. 1. It has poor flexibility, and 3.
- Workability such as itching is not satisfactory.

然して本発明者らは上記の問題点について鋭意研究の結
果、従来一般に使われている無機繊維よシも繊維径の細
い無機繊維を使用した繊維マットを用い、有機繊維の不
織布と積層し、ついでニードルパンチング加工によ多繊
維相互を絡合させるコトニヨり上記の問題点が飛躍的に
解決されることを認めた。However, as a result of intensive research into the above-mentioned problems, the present inventors used a fiber mat made of inorganic fibers with a smaller fiber diameter than the conventionally commonly used inorganic fibers, laminated them with a nonwoven fabric of organic fibers, and then It has been found that the above-mentioned problems of intertwining multiple fibers with each other can be dramatically solved by needle punching.

即ち本発明は平均繊維径が３μ以下の無機繊維からなる
マットと有機繊維不織布との積層体であって、該無機繊
維マット中に前記有機繊維の一部がニードルパンチング
加工によシ絡み合って結合されていることを特徴とする
無機・有機繊維複合断熱材である。That is, the present invention is a laminate of a mat made of inorganic fibers with an average fiber diameter of 3 μ or less and an organic fiber nonwoven fabric, wherein a part of the organic fibers are intertwined and bonded in the inorganic fiber mat by needle punching. This is an inorganic/organic fiber composite insulation material that is characterized by:

従来、一般にこの分野においてガラス繊維など含主体と
する無機繊維マットが用いられる場合。Conventionally, in this field, inorganic fiber mats mainly containing glass fibers have been used.

使われる無機繊維の繊維径は７μ以上で、細い繊維を使
用する場合でも繊維径は高々４μ前後でめシ、それ以下
の極細の繊維径のウェッブは製造コストが高く経済的で
ないためが、この分野では全４− ＜研究がなされていなかったのが現状である。The fiber diameter of the inorganic fibers used is 7μ or more, and even when using thin fibers, the fiber diameter is at most around 4μ, and webs with ultrafine fiber diameters less than that are expensive to manufacture and are not economical. Currently, no research has been conducted in all 4 fields.

本発明で用いられる無機繊維としては、ガラス繊維、ロ
ックウール、鉱滓繊維、セラミックス繊維、金属繊維な
どであるが、この中でセラミック繊維が柔軟性や有機繊
維との絡合形態の安定性、製造コストの経済性などの面
から最も好ましい。Examples of inorganic fibers used in the present invention include glass fibers, rock wool, mineral slag fibers, ceramic fibers, and metal fibers. This is the most preferable in terms of cost economy.

ここで好適に用いられるセラミック繊維とは、シリカ（
ＳｔＯ＋　）とアルミナ（Ａｄ２ｅｓ）　を主成分とす
る繊維であｐ、高速気流を使ったブローイング法、同転
円盤を使ったスピニング法、単結晶育成法を改良しｆ（
Ｅ　Ｆ　Ｇ　（Ｅｄｇｅ　−ｄｅｆｉｎｅｄ　ｆｉｌｍ
−ｆｅｄ　ｇｒｏｗｔｈ）法などの方法で製造されたも
のである。シリカとアルミナの混合割合は広く採用され
るが、一般に重量比で２０：８０〜８０　：　２０の範
囲にあ＃）。The ceramic fiber suitably used here is silica (
StO + ) and alumina (Ad2es) are the main components of the fiber, which is produced by improving the blowing method using high-speed airflow, the spinning method using a co-rotating disk, and the single crystal growth method.
E F G (Edge-defined film
-Fed growth) method. The mixing ratio of silica and alumina is widely adopted, but is generally in the range of 20:80 to 80:20 by weight.

好１しくは４０　：　６０〜６０：４０．特に４５：５
５〜５５：４５の範囲にあるものがよい。またこのセラ
ミック繊維には数重量パーセント以下の他の成分が混入
されたものであってもよい。またこのセラミック繊維の
表面にはニードルパンチング加工性、取扱い加工性など
を向上させた如、嵩５− 高さや結露防止性などの効果をよシ一層向上させる大め
の表面処理が施されたものであってもよい。Preferably 40:60 to 60:40. Especially 45:5
A ratio in the range of 5 to 55:45 is preferable. The ceramic fibers may also contain other components of several weight percent or less. In addition, the surface of this ceramic fiber has been subjected to a large surface treatment that further improves the properties such as bulkiness and dew condensation prevention, as well as improved needle punching processability and handling processability. It may be.

本発明においては該無機繊維の繊維径の細いことが本質
的に重要でめ９、通常使われる平均繊維径が３μ以下で
めシ、好ましく　ｔ／′ｉｉ、　ｏ〜２．５μの範囲に
６るのがよい。繊維径が細いととＫよシマットの柔軟性
が無機繊維のマットとしては極端に増大し、繊維の飛散
も極めて少なく、積層される有機繊維とのなじみがよく
１金属板との接着加工性や先貼シ加工後のロール成形加
工性が一段と向上する。また断熱材全体が嵩高となシ軽
量性も増大し１人体へのかゆみも防止され、併せて断熱
性や結露防止性も向上する。一般に本発明の断熱性など
の効果を達成するためには、＃無機繊維の繊維径は細い
方がよいが、後述する有機繊維との積層に際しては該有
機繊維の種類、特に繊維径とのバランスにおいてこの範
囲内で最適のものが適宜選択される。In the present invention, it is essentially important that the inorganic fibers have a small fiber diameter. It is better to When the fiber diameter is small, the flexibility of Toko Yoshimat is extremely increased compared to an inorganic fiber mat, and the scattering of fibers is extremely small, and it is compatible with the organic fibers that are laminated, and has excellent adhesion processability with metal plates. Roll forming processability after tip pasting is further improved. In addition, the bulk of the insulation material as a whole increases its lightness, prevents itching on the human body, and also improves its insulation and dew condensation prevention properties. Generally, in order to achieve the effects such as heat insulation of the present invention, it is better for the fiber diameter of #inorganic fibers to be thin, but when laminating with organic fibers described below, the type of organic fibers, especially the balance with the fiber diameter. The optimum one is appropriately selected within this range.

一方、本発明において用いられる有機繊維としてｎ、ボ
ｙエステル、ナイロン、ビニロン、レー６− ヨン、アクリル、ポリプロピレンなどの合成繊維が好ん
で用いられ、その形状はステーブル（短繊維）でもフィ
ラメント（長繊維）でもよい。難燃剤が混入されたもの
や、各種難燃化処理された繊維を用いることが防火性の
上から好まれるが、該有機繊維の使用量が少ない場合に
は特に要求されない。また、ここで用いられる有機繊維
の繊維径は特に限定されないが、用いられる無機繊維の
繊維径よシも大きいことがよく、一般に無機繊維の繊維
径の１〜５０倍、好ましくは１〜２０倍、特に好ましく
は２〜１０倍の範囲にあるものがよい。On the other hand, synthetic fibers such as n, boy ester, nylon, vinylon, rayon, acrylic, and polypropylene are preferably used as the organic fibers used in the present invention, and their shapes can be stable (short fibers) or filament (short fibers). (long fiber) may also be used. It is preferable to use fibers mixed with a flame retardant or fibers treated with various types of flame retardant from the viewpoint of fire protection, but this is not particularly required when the amount of the organic fibers used is small. Further, the fiber diameter of the organic fiber used here is not particularly limited, but the fiber diameter of the inorganic fiber used is often larger, and is generally 1 to 50 times, preferably 1 to 20 times the fiber diameter of the inorganic fiber. , particularly preferably in the range of 2 to 10 times.

本発明において断熱材を製造する方法は、上記無機繊維
からなる繊維マットと上記有機繊維からなる不織布の所
定量を積層後に軽くニードルパンチング加工し、該無機
繊維のマット中に有機繊維を絡合させることによシ得ら
れる。この際、有機繊維不織布の層は無機繊維マットの
片面でも両面でもよく、またこれらの不織布またはマッ
トの各層Ｕ６らかしめニードルパンチング加工されたも
のを使用することも自由である。有機繊維不織布７− を両面に付したものは１層間強度が増大し、金属板との
接着性も改善される。ニードルの密度は。The method of manufacturing a heat insulating material in the present invention includes laminating a predetermined amount of a fiber mat made of the above inorganic fibers and a predetermined amount of the nonwoven fabric made of the above organic fibers, and then lightly needle-punching the mat to entangle the organic fibers in the mat of the inorganic fibers. You can especially get it. At this time, the organic fiber nonwoven fabric layer may be on one side or both sides of the inorganic fiber mat, and each layer of these nonwoven fabrics or mats may be crimped and needle punched. The organic fiber nonwoven fabric 7- applied on both sides has increased interlayer strength and improved adhesion to metal plates. What is the density of the needle?

取扱い作業中、成形加工中および施工後の使用中に無機
繊維マットと有機繊維不織布との層間および無機繊維マ
ット自体の層間で剥離が生じない程度に適宜すればよい
。It may be appropriate to do so so as not to cause peeling between the layers of the inorganic fiber mat and the organic fiber nonwoven fabric and between the layers of the inorganic fiber mat itself during handling, molding, and use after construction.

本発明に用いられる無機繊維マットの嵩比重は一般に低
い方がよ＜０．０１〜０．５　ｒ／ｃｄの範囲にあり、
０．０５〜０．２ｖ〜の範囲内から選択することが取扱
い作業性、貼り合せ加工性、成形加工性、断熱性、結露
防止性、吸音性などの点から特に好ましい。The bulk specific gravity of the inorganic fiber mat used in the present invention is generally in the lower range of <0.01 to 0.5 r/cd,
It is particularly preferable to select from the range of 0.05 to 0.2 V from the viewpoint of handling workability, bonding processability, molding processability, heat insulation property, dew condensation prevention property, sound absorption property, etc.

本発明において積層される有機繊維不織布の使用量は取
扱い時に破断したり、ロール成形加工時に折シ曲げ部の
破断、つぶれ１　しわなどの発生がない範囲で極力少な
い方が防火性能の面から好ましく１本発明においては前
記有機繊維不織布を構成する繊維の繊維径を好ましい範
囲に設定することにより、よシ少量の使用量で加工時の
一度が保持できる。一般に５〜７０ｆ／−の範囲が用い
られ。In terms of fire prevention performance, it is preferable that the amount of organic fiber nonwoven fabric laminated in the present invention be as small as possible without causing breakage during handling, breakage at folded portions, crushing, etc. during roll forming. 1. In the present invention, by setting the fiber diameter of the fibers constituting the organic fiber nonwoven fabric within a preferable range, it is possible to maintain the amount used once during processing with a very small amount. Generally, a range of 5 to 70 f/- is used.

８− 特に好ましくはｌＯ〜６０　ｔ／ｄである。これは１０
ｖ／♂以下では無機繊維マットとの絡合が不十分になる
ため取扱い時破断したシ、ロール成形加工時に切断など
の欠点が生じ易ぐ、６０９７♂以上では不燃材料試験に
合格しにくくなるためである。8- Particularly preferably 10 to 60 t/d. This is 10
If it is less than v/♂, the entanglement with the inorganic fiber mat will be insufficient, so defects such as breakage during handling or cutting during roll forming will easily occur, and if it is more than 6097♂, it will be difficult to pass the noncombustible material test. It is.

本断熱材は、用いる有機繊維の耐熱温度例えば４００℃
程度までの温度範囲において、断熱、保温用の材料とし
て、単独又は金属等信の支持体と複合して使用′される
。又、断熱性と併せて防音性。This heat insulating material has a heat resistance temperature of 400°C, for example, of the organic fiber used.
It is used alone or in combination with a metal support as a material for heat insulation and heat retention in a temperature range of up to 100 degrees. In addition to heat insulation, it also has soundproofing properties.

制振性を要求される用途に使用“することも可能である
。具体的には、金属折板屋根用断熱材、壁・床用断熱材
、パイプ等の断熱材等の各種建材用断熱材、ストーブ、
ボイラー等の断熱防音材、温水機・貯湯機等の断熱材、
目地材、バッキング等に用いることができる。It can also be used in applications that require vibration damping properties.Specifically, it can be used as insulation material for various building materials such as insulation material for folded metal plate roofs, insulation material for walls and floors, insulation material for pipes, etc. , stove,
Heat and sound insulation materials for boilers, etc., heat insulation materials for water heaters, hot water storage machines, etc.
Can be used as joint material, backing, etc.

本発明における無機繊維マットの使用量は目的とするこ
れら用途の断熱性、結露防止性、吸音性などの性能に応
じて適宜選択される。通常は無機繊維マットの厚みで２
〜１００ｇの範囲で使用される。繊維径が細いので通常
の無機繊維マットよ９− 少少量の使用量（薄い厚み）で断熱性、結露防止性、吸
音性などの改善効果が認められ゛るのが本発明の特徴で
ある。The amount of the inorganic fiber mat used in the present invention is appropriately selected depending on the performance of the intended use, such as heat insulation, anti-condensation properties, and sound absorption properties. Usually the thickness of the inorganic fiber mat is 2
~100g is used. A feature of the present invention is that since the fiber diameter is small, improvements in heat insulation, dew condensation prevention, sound absorption, etc. can be observed with a smaller amount (thinner thickness) than ordinary inorganic fiber mats.

本発明の断熱材は有機繊維不織布と無機繊維マットとの
間の結合力が強く、またそれ自体での作業性、加工性、
各種性能なども十分であるが、さらに要求される場合に
は常法に従って各種樹脂処理や難燃処理を施すこともで
き、また、必要に応じて無機質系、有機質系のバインダ
ーの添加や。The heat insulating material of the present invention has a strong bonding force between the organic fiber nonwoven fabric and the inorganic fiber mat, and has excellent workability and processability by itself.
Although various performances are sufficient, if further requirements are required, various resin treatments and flame retardant treatments can be applied according to conventional methods, and inorganic and organic binders can be added as necessary.

任意の着色仕上げや防水性、耐候性１耐菌性、防汚性な
どの改善のための任意の処理を各工程の前。Before each process, any color finish or any treatment to improve waterproofness, weather resistance, bacteria resistance, stain resistance, etc.

中、後の任意の工程で付毒することが可能である。It is possible to add poison at any step during or after the process.

以下に実施例においてよシ詳細に説明する。なお、こと
わらない限シ、割合はすべて重量割合をめられす。This will be explained in detail in Examples below. Please note that unless otherwise specified, all percentages are by weight.

実施例１ 平均繊維径２．９μ、繊維長３０〜５ｏＩＩＩ１１１嵩
比重０．０６９Ａｒｒ！　、厚さ約１０ｍ（Ｄガラス繊
維からなる無機繊維マットの一面に繊維径２５μ、繊維
長３８■１坪量３０９／ｄのポリエステル繊維不織布１
０− を積層後、ポリエステル繊維不織布の側よシ１゜本／ｄ
の密度でニードルバンチング加工をし第１表に示す特性
値を有する断熱材を得た。該断熱材を厚さ０．８關の亜
鉛鉄板にネオプレンゴム系接着剤にて貼着し、乾燥後ロ
ール成形機を通して折板形状に加工したところ折れ曲シ
部での切断、しわなどの発生は全く認められない良好な
ものを得ることができた。Example 1 Average fiber diameter 2.9μ, fiber length 30-5oIII111, bulk specific gravity 0.069Arr! , about 10 m thick (one side of the inorganic fiber mat made of D glass fibers is covered with 1 polyester fiber non-woven fabric with a fiber diameter of 25 μm and a fiber length of 38 cm and a basis weight of 309/d).
After laminating 0-, the side width of polyester fiber nonwoven fabric is 1°/d.
A heat insulating material having the characteristic values shown in Table 1 was obtained by needle bunching at a density of . The insulation material was attached to a 0.8-thick galvanized iron plate using a neoprene rubber adhesive, and after drying, it was processed into a folded plate shape using a roll forming machine, resulting in cuts and wrinkles at the bends. I was able to obtain a good product that was completely unacceptable.

実施例２ 平均繊維径２．１μ、最長繊維長２５０ｍのシリカ／ア
ルミナを主体とするセラミック繊維（Ｓｉｎ２：Ａ＃０
ｓ＝５２　：４８）カラなる嵩比重０．１０７Ａｄ、厚
さ約１５簡の無機線維マットの一面に繊維径約１０μ、
繊維長５１咽１坪量４０　ｆ／ｒｌのポリエステル繊維
不織布を積層後、ポリエステル繊維不織布の側よＩ）２
０本／ｃｐｄの密度でニードルバンチング加工をし、第
１表に示す特性値を有する柔軟で繊維相互間がよく絡合
されている断熱材を得た。該断熱材を厚さ０．６．の着
色亜鉛鉄板にネオプレンゴム系接着剤にて貼着し、乾燥
後ロール成形機を通して折板形状に成形加工したところ
、折り曲げ部での切断、つぶれ、しわなどの発生の全く
ない良好なものを得ることができた。Example 2 Ceramic fibers mainly composed of silica/alumina (Sin2:A#0
s=52:48) A fiber diameter of about 10 μ is placed on one side of an inorganic fiber mat with a bulk specific gravity of 0.107 Ad and a thickness of about 15.
After laminating polyester fiber non-woven fabrics with fiber length 51 and grammage 40 f/rl, from the side of the polyester fiber non-woven fabric I)2
A needle bunching process was performed at a density of 0 fibers/cpd to obtain a flexible heat insulating material in which the fibers were well entangled with each other and had the characteristic values shown in Table 1. The heat insulating material has a thickness of 0.6. It was attached to a colored galvanized iron plate using a neoprene rubber adhesive, and after drying, it was formed into a folded plate shape using a roll forming machine.The result was a good product with no cuts, crushing, or wrinkles at the bending part. I was able to get it.

実施例３ 実施例２のポリエステル繊維不織布に代えて平均繊維径
約１５μの難燃化ビニロン（繊維長５１鵡）よシなる坪
量５０　？／ｎｌの不織布を積層した以外は実施例２と
同様にして第１表に示す特性値を有する断熱材を得た。Example 3 Instead of the polyester fiber nonwoven fabric of Example 2, a flame-retardant vinylon (fiber length 51 mm) with an average fiber diameter of about 15 μm was used with a basis weight of 50 μm. A heat insulating material having the characteristic values shown in Table 1 was obtained in the same manner as in Example 2 except that a nonwoven fabric of /nl was laminated.

該断熱材の表面にアクリル系着色用塗料を１０　ｆ／ｒ
ｌ　（固形分）粉霧し、裏面に厚さ０．４閣のステンレ
スをネオプレンゴム系接着剤にて貼着し、乾燥後ロール
成形機を通して折板形状に成形加工したところ、折シ曲
げ部での切断、つぶれ、しわなどの発生の全くない良好
なものを得ることができた。Apply acrylic coloring paint to the surface of the insulation material at 10 f/r.
l (Solid content) After spraying with powder, 0.4 inch thick stainless steel was attached to the back side with neoprene rubber adhesive, and after drying, it was formed into a folded plate shape through a roll forming machine. It was possible to obtain a good product with no occurrence of cuts, crushing, wrinkles, etc.

実施例４ 平均繊維径１．８μｍ最大繊維長２５０ｍのシリカ／ア
ルミナを主体とするセラミック繊維（５ｉＯｚ：ＡＪ２
０ａ＝５０：５０）からなる嵩比重０．０９　ｋ’Ａｔ
／ｉ。Example 4 Silica/alumina based ceramic fiber (5iOz: AJ2
0a=50:50) with a bulk specific gravity of 0.09 k'At
/i.

厚さ約５鶏の無機繊維マットの一面にスパンボンド法に
よシ得られた繊維径１０μ〜３５μのポリエステル繊維
不織布を坪量２０グ／１１１″積層後、ポリエステル繊
維不織布の側よシ３０　＊／ｃｒ／ｌの密度でニードル
バンチング加工をし、第１表に示す特性値を有する柔軟
で強力の強い断熱材を得た。該断熱材を厚さ０．６　ｍ
の亜鉛鉄板にホットメルト接着剤にて熱融着し、冷却後
ロール成形機を通して折板形状に成形加工したところ、
折り曲げ部での切断、つぶれ、しわなどの発生の全くな
い良好なものを得ることができた。After laminating a polyester fiber nonwoven fabric with a fiber diameter of 10 μm to 35 μm obtained by the spunbond method on one side of an inorganic fiber mat with a thickness of approximately 5 mm, the basis weight is 20 g/111″, and the side width of the polyester fiber nonwoven fabric is 30 * A flexible and strong heat insulating material having the characteristic values shown in Table 1 was obtained by needle bunching at a density of /cr/l.
It was heat-sealed to a galvanized iron plate using hot melt adhesive, and after cooling, it was formed into a folded plate shape through a roll forming machine.
It was possible to obtain a good product with no occurrence of cuts, crushing, wrinkles, etc. at the bent portion.

実施例５ 平均繊維径２．５μ、最大繊維長２５０配のシリカ／ア
ルミナを主体とするセラミック繊維（ＳｉＯｚ：　Ａ７
２０３＝５２　：　４８　）からなる嵩比重０．０６　
ｆ／ａｄ　。Example 5 Ceramic fibers mainly composed of silica/alumina (SiOz: A7) with an average fiber diameter of 2.5μ and a maximum fiber length of 250.
203=52:48) with a bulk specific gravity of 0.06
f/ad.

厚さ約５鰭の無機繊維マットの両面に、繊維径約１５μ
、＃１．維長３Ｂ日２坪量１５　ｆ／ｒｎ”のポリエス
テル繊維不織布を各々積層後２０本／　ｃＪの密度でニ
ードルバンチング加工をし、第１表に示す特性値を有す
る繊維相互間がよく絡合されている断熱材を得た。該断
熱材を厚さ０．８　ｒａｎの着色亜鉛鉄板１３− にネオプレンゴム系接着剤で貼着し、乾燥後ロール成形
機を通して折板形状に成形加工したところ。On both sides of the inorganic fiber mat with a thickness of about 5 fins, the fiber diameter is about 15 μm.
, #1. After laminating polyester fiber nonwoven fabrics with a basis weight of 15 f/rn'', fibers having the characteristic values shown in Table 1 were well entangled. A heat insulating material was obtained.The heat insulating material was adhered to a colored galvanized iron plate 13-2 with a thickness of 0.8 ran with a neoprene rubber adhesive, and after drying, it was formed into a folded plate shape through a roll forming machine.

折り曲げ部での切断、つぶれ、しわなどの発生のない良
好なものを得ることができた。It was possible to obtain a good product with no occurrence of cuts, crushing, wrinkles, etc. at the bent portion.

比較例１ 平均繊維径９μ、繊維要約２００〜６００ｍ、嵩比重０
．　ｌ　３　ｆ／ｌ：ｍｌ　、厚さ１０日のガラス繊維
からなる無機繊維マットを用いる以外は実施例１と同様
にして第１表に示す特性値を有する断熱材を得た。Comparative Example 1 Average fiber diameter 9μ, fiber length 200-600m, bulk specific gravity 0
．． A heat insulating material having the characteristic values shown in Table 1 was obtained in the same manner as in Example 1, except that an inorganic fiber mat made of glass fibers having a ratio of l 3 f/l:ml and a thickness of 10 days was used.

該断熱材を実施例１と同じよう忙加工したところ。The heat insulating material was processed in the same manner as in Example 1.

ポリエステル不織布との層間強力が弱く、折シ曲げ部で
しわが発生し、またガラス繊維の飛散による人体へのか
ゆみを生じた。The interlayer strength with the polyester nonwoven fabric was weak, causing wrinkles at the folded portion, and the scattering of glass fibers caused itching on the human body.

以下余白 １４− 第　１　表 ◎極めて良好　○良好　△普通 １５− −９）１−Margin below 14- Table 1 ◎Very good　○Good　△Average 15- -9)1-

Claims (1)

【特許請求の範囲】[Claims] 平均繊維径が３μ以下の無機繊維からなるマットと有機
繊維不織布との積層体であって、該無機繊維マット中に
前記有機繊維の一部がニードルパンチング加工によシ絡
み合って結合されていることを特徴とする無機・有機複
合断熱材。A laminate of a mat made of inorganic fibers with an average fiber diameter of 3 μ or less and an organic fiber nonwoven fabric, in which a portion of the organic fibers are intertwined and bonded in the inorganic fiber mat by needle punching processing. An inorganic/organic composite insulation material characterized by: