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JP4638966B2 - Flame retardant metal coated fabric - Google Patents
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JP4638966B2 - Flame retardant metal coated fabric - Google Patents

Flame retardant metal coated fabric Download PDF

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Publication number
JP4638966B2
JP4638966B2 JP27773898A JP27773898A JP4638966B2 JP 4638966 B2 JP4638966 B2 JP 4638966B2 JP 27773898 A JP27773898 A JP 27773898A JP 27773898 A JP27773898 A JP 27773898A JP 4638966 B2 JP4638966 B2 JP 4638966B2
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JP
Japan
Prior art keywords
metal
flame retardant
resin
coated
resin layer
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
Application number
JP27773898A
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Japanese (ja)
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JP2000110066A (en
Inventor
進 高木
幸代 坂川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiren Co Ltd
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Seiren Co Ltd
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Filing date
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Priority to JP27773898A priority Critical patent/JP4638966B2/en
Publication of JP2000110066A publication Critical patent/JP2000110066A/en
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Publication of JP4638966B2 publication Critical patent/JP4638966B2/en
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  • Laminated Bodies (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Manufacturing Of Multi-Layer Textile Fabrics (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、電子機器などのシールド材として用いられる、難燃性を有する金属被覆布帛に関するものである。
【0002】
【従来の技術】
従来から、合成繊維布帛表面にスパッタリング法、金属蒸着法や、その他種々のメッキ法により金属被膜を形成させた導電性布帛が知られている。そしてこの様な導電性布帛は電子機器から漏洩する電磁波の遮蔽に用いられてきた。ところが、近年になり家電製品やOA機器などの電子機器分野でも難燃性が求められるようになってきており、それら電子機器のシールド材として用いられている導電性布帛にも難燃性が要求されるようになってきた。
従来、ポリエステル等合成繊維の難燃化にはリンあるいはブロムを含有した難燃化合物が有効とされている。しかし、一般に合成繊維にメッキされて成る金属被覆布帛から成る導電性布帛は金属が酸化触媒になり可燃性を増すものが多く、従来の方法では充分な難燃性が得られない。また、金属被膜をポリエステルなどの繊維表面に形成すると、被覆金属が繊維の溶融による消火作用を妨げるだけでなく、形成された金属被膜により熱伝導性が良くなり延焼を助長させる為、充分な難燃性を得ることは困難であった。
【0003】
そこで、充分な難燃性を得るための手段として、特開昭62−21870には金属付着繊維にリン化合物系難燃剤とハロゲン化合物系難燃剤とを施し難燃性を付与する方法が開示されている。
しかしこの方法では、加工処理中に190℃の熱処理を行うため、金属部分の腐食や変質などにより導電性の劣化などが起こる虞がある。
また、特開平07−42079には難燃性繊維織物を金属化しその表面をウレタン樹脂で被覆し、その上に有機難燃剤及び無機難燃剤の混合物を被覆させ、更にウレタン樹脂で被覆する方法が開示されている。
しかし、この方法では三層の被膜を設けなければならない為経済的にも好ましくない。
また、繊維素材が難燃性繊維に限定されてしまう。一般に難燃性繊維は、その特性上細い繊維を製造しにくく、その為市販難燃繊維のほとんどは短繊維である。その為、薄い布帛の製造が困難で、更には、発塵、毛羽立ち等の問題がある為、導電性布帛の主な用途である電子部品のシールド用部品としての使用には不向きである。
また、塩化ビニール繊維は、難燃性があり、細デニールフィラメント糸が生産されているが、熱収縮開始温度が60〜70℃と低く、また、約110℃で軟化し始めるなど、メッキ加工時や使用の際に問題が起こりやすい。
【0004】
また、金属被覆布帛にリン化合物系難燃剤やブロム化合物系難燃剤など公知の難燃剤をそれぞれ単独に施しても十分な難燃性が得られないばかりか、難燃剤を含む塗工液が導電性布帛塗工面の反対側に滲みだし金属被覆布帛の品位を損ね、更には、難燃剤の影響で高温多湿の環境下で難燃剤塗工面の反対側の被覆金属面が変色する。この被覆金属面の変色は金属表面が難燃剤等と反応し腐食が生じているためと推定される。
【0005】
【発明が解決しようとする課題】
本発明は、上述の事情を背景としてなされたもので、その目的は難燃性が有り、被覆金属の腐食変色を防止した金属被覆布帛を得ることである。
【0006】
【課題を解決する手段】
本発明は、上記目的を達成するもので次の構成より成るものである。すなわち、本発明は金属被覆布帛の一方の面に樹脂層を形成し、他方の面に難燃剤を含む樹脂層が形成されており、該一方の面の樹脂層が、塗工量0.5〜10g/m であり、難燃剤を含む樹脂の滲みだし防止層であることを特徴とするものであり、またこの発明に於いて、樹脂層を形成する一方の樹脂がアクリル樹脂を主体とする樹脂層であり、他方の難燃剤を含む樹脂がウレタン樹脂であることを特徴とするものである。更に、アクリル樹脂層に難燃剤が添加されても良く、また、難燃剤が有機ブロム化合物、リン酸エステル、三酸化アンチモンの三種類の難燃剤より構成されていることを好適構成とするものである。即ち、本発明は、被覆金属の腐食変色の防止や、難燃剤を含む樹脂の滲みだしを防止するために、金属被覆された合成繊維布帛の表面に樹脂層を形成し、裏面に難燃剤を含む樹脂を塗工することを特徴とする難燃化された電磁波シールド用金属被覆布帛を提供するものである。
【0007】
金属被覆布帛の一方の面に形成される樹脂被膜は、製品の柔軟性を考慮するとアクリル酸エステル等のアクリル樹脂が好ましい。ウレタン樹脂、ポリエステル樹脂は塗工することにより、布帛が硬くなり好ましくない。また、このアクリル樹脂に難燃剤を添加しても良く、また架橋剤を添加することにより耐久性を高めることができる。用いられる架橋剤としてはイソシアネート系樹脂、エポキシ系樹脂が挙げられる。
樹脂の塗工量は0.5〜10g/m2が好ましく、更に好ましくは1〜6g/m2である。この範囲より少ないと反対面に塗工する難燃剤を含む樹脂の滲みだし防止効果が十分に得られず、多すぎるとタックが強くなり好ましくない。樹脂は浸漬、コーティングなど従来公知の方法により塗工されるが、好ましくはナイフコーティング法が良い。
金属被覆布帛他方の面に形成される難燃剤を含む樹脂層は、ウレタン樹脂が好ましい。ウレタン樹脂は、アクリル樹脂やエステル樹脂に比較して、難燃効果が得られやすく、摩擦強度、摩耗強度密着性の点で優れている。更にウレタン樹脂の中でも難黄変のエステル系ウレタンが物性、耐久性、経済性の点で好ましい。
アクリル樹脂層を形成すると柔軟な樹脂層の金属被覆布帛が得られる。また、ウレタン樹脂層を形成すると難燃性が得られやすい。そこで、一方の面にアクリル樹脂層を形成し他方の面からの樹脂の滲みだしを防止し、他方の面に難燃剤を含むウレタン樹脂層を形成することで柔軟で、且つ難燃効果に優れた金属被覆布帛を得ることができる。
【0008】
用いられる難燃剤は有機ブロム化合物、リン酸エステル、三酸化アンチモンより形成される。
ウレタン樹脂固形分に対する難燃剤の比率は、有機ブロム化合物が40〜240%、好ましくは80〜160%、リン酸エステルが10〜80%、好ましくは20〜60%、三酸化アンチモンが30〜160%、好ましくは60〜100%である。これ以上の比率になると樹脂被膜が脆くなり、また、少ないと十分な難燃性が得られない。
上記のように難燃剤として有機ブロム化合物、リン酸エステル、三酸化アンチモンの三種類を組み合わせることによりすぐれた難燃効果を得ることができる。
難燃剤を含む樹脂の塗工量は布帛重量に対して50〜150%が好ましく、特に好ましくは90〜110%である。塗工量が少ないと、難燃性が得難く、塗工量が多いと経済的に不利である。塗工方法は従来公知の方法が用いられる。
【0009】
金属被服布帛を構成する素材の種類は平織り、綾織り、朱子織り及びそれらの織り方を応用した各種の織物、或いは、経編、緯編、レース編及びそれらの編み方を応用した各種の編物、更には不織布など何れも採用することができ、特に限定される物ではない。また、使用される繊維は天然繊維、合成繊維等従来公知のものが使用できるが、耐久性、加工性の点で合成繊維が好ましく、その中でもポリエステル繊維が好ましい。
【0010】
【実施例】
実施例により本発明を詳細に説明するが、本発明はこれら実施例に限定されるものではない。実施例・比較例における布帛の評価方法は次の通りである。
【0011】
<評価法>
▲1▼ 樹脂の滲みだし及び金属表面変色性評価
1.難燃剤を含む樹脂の反対面への滲みだし状態を肉眼で判定した。
2.変色評価(低湿度)
乾燥機内で、60℃で300時間放置し、被覆金属表面の変色を肉眼で判定し、次のように評価を行った。
○ 変色が認められない
× 変色が認められる
3.変色評価(高湿度)
恒温恒湿槽内で、85℃、湿度90%で300時間放置し、被覆金属表面の変色を肉眼で判定し、変色評価(低湿度)と同様に判定した。
これらの評価結果を表1に示す。
【0012】
▲2▼ 難燃性評価
UL94のVTM−0に準じて評価する。
評価結果を表2に示す
【0013】
▲3▼ 表面抵抗値
HIOKI電機株式会社製抵抗値測定器ミリオームハイテスター3220を用い、クリップ平行電極幅10cm、電極間距離10cmにおける抵抗値を測定した。
評価結果を表3に示す。
【0014】
▲4▼ シールド性評価
関西電子工業振興センターの生駒電波測定所の考案による測定法にて、10MHz〜1GHzの電界波について評価した。
評価結果を表4に示す。
【0015】
【実施例1】
ポリエステル繊維100%よりなる目付50g/m2の平織物に無電解メッキ法で銅を10g/m2メッキし、次いでニッケルを4g/m2メッキした金属被覆布帛(総目付64g/m2)の一方の面に、下記処方1に示す樹脂液をナイフコーティング法により布帛表面に塗工し130℃で2分間乾燥した。塗工量は3g/m2であった。その後、金属被覆布帛の他方の面に下記処方2に示す樹脂液をナイフオンロールコーティング法にて塗工し130℃で2分間乾燥し、本発明の加工布帛を得た。塗工量は70 g/m2であった。
【0016】
処方1
トアクロンSA6218 100重量部
(トウペ社製、アクリル系樹脂)
UD架橋剤 1.5重量部
(大日精化工業株式会社製、イソシアネート架橋剤)
にトルエンを加え粘度を25000cpsに調整する。
【0017】
処方2
レザミンME3612LP 100重量部
(大日精化工業株式会社製、ウレタン系樹脂、固形分30%)
HBCD 38重量部
(ヘキサブロモシクロドデカン、ブロム含有量70%)
リン酸エステル 14重量部
三酸化アンチモン 24重量部
にトルエンを加え粘度を8000cpsに調整する。
【0018】
【比較例1】
実施例1で用いた金属被覆布帛の一方の面に、前述した処方1の樹脂をナイフコーティング法により塗工し130℃で2分間乾燥した。塗工量は3g/m2であった。更に、同一面に前述した処方2の樹脂をナイフコーティング法により塗工し、130℃で2分間乾燥した。塗工量は70 g/m2であった。
【0019】
【比較例2】
実施例1で用いた金属被覆繊維の一方の面に前述した処方2の樹脂をナイフコーティング法により塗工し130℃で2分間乾燥した。塗工量は70 g/m2であった。
【0020】
【比較例3】
実施例1で用いた金属被覆繊維の一方の面に前述した処方1の樹脂をナイフコーティング法により塗工し130℃で2分間乾燥した。塗工量は3g/m2であった。更に、同一面に後述する処方3の樹脂をナイフコーティング法により塗工し130℃で2分間乾燥した。塗工量は70g/m2であった。
【0021】
処方3
レザミンME3612LP 100重量部
(大日精化工業株式会社製、ウレタン系樹脂)
HBCD 12重量部
(ヘキサブロモシクロドデカン)
三酸化アンチモン 8重量部
にトルエンを加え粘度を8000cpsに調整する。
【0022】
【表1】

Figure 0004638966
【0023】
【表2】
Figure 0004638966
【0024】
【表3】
Figure 0004638966
【0025】
【表4】
Figure 0004638966
【0026】
【発明の効果】
この発明においては柔軟で優れた難燃効果のある金属被覆布帛が得られ、長期間の高温高湿環境下においても初期導電性を維持でき、また、被覆金属の変色を防止することができる。また難燃剤を塗布しても金属布帛表面への滲みだしが防止できるため表面品位を損なうことがない。更には、ポリエステル繊維布帛を使用することで、薄地でソフトな風合いの金属被覆布帛が得られ、電子部品のシールド材として優れた製品を提供することができる。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a flame-retardant metal-coated fabric used as a shielding material for electronic devices and the like.
[0002]
[Prior art]
Conventionally, conductive fabrics are known in which a metal coating is formed on the surface of a synthetic fiber fabric by sputtering, metal vapor deposition, or other various plating methods. Such conductive fabric has been used for shielding electromagnetic waves leaking from electronic devices. However, in recent years, flame resistance has come to be demanded also in the field of electronic devices such as home appliances and OA devices, and the conductive fabric used as a shielding material for these electronic devices is also required to have flame resistance. It has come to be.
Conventionally, a flame retardant compound containing phosphorus or bromine is effective for making a synthetic fiber such as polyester flame retardant. However, in general, many conductive fabrics made of metal-coated fabrics plated on synthetic fibers increase the flammability because the metal becomes an oxidation catalyst, and conventional methods cannot provide sufficient flame retardancy. In addition, when a metal coating is formed on the surface of a fiber such as polyester, the coated metal not only prevents the fire extinguishing action due to the melting of the fiber, but also increases the thermal conductivity and promotes the spread of fire. It was difficult to obtain flammability.
[0003]
Therefore, as a means for obtaining sufficient flame retardancy, Japanese Patent Application Laid-Open No. 62-21870 discloses a method of imparting flame retardancy by applying a phosphorus compound flame retardant and a halogen compound flame retardant to a metal-attached fiber. ing.
However, in this method, since a heat treatment at 190 ° C. is performed during the processing, there is a possibility that the conductivity deteriorates due to corrosion or alteration of the metal part.
Japanese Patent Laid-Open No. 07-42079 discloses a method in which a flame retardant fiber fabric is metallized and the surface thereof is coated with a urethane resin, a mixture of an organic flame retardant and an inorganic flame retardant is coated thereon, and further coated with a urethane resin. It is disclosed.
However, this method is not economically preferable because a three-layer coating must be provided.
Moreover, a fiber material will be limited to a flame-retardant fiber. In general, flame retardant fibers are difficult to produce thin fibers due to their characteristics, and therefore, most commercially available flame retardant fibers are short fibers. For this reason, it is difficult to produce a thin fabric, and further, there are problems such as dust generation and fluffing. Therefore, it is not suitable for use as a shielding component for electronic components which are the main uses of conductive fabric.
In addition, vinyl chloride fiber is flame retardant and fine denier filament yarn is produced, but the heat shrinkage starting temperature is as low as 60 to 70 ° C, and it begins to soften at about 110 ° C. Problems are likely to occur during use.
[0004]
In addition, when a known flame retardant such as a phosphorus compound-based flame retardant or a bromine compound-based flame retardant is applied to the metal-coated fabric, sufficient flame retardancy cannot be obtained, and the coating liquid containing the flame retardant is electrically conductive. Exuded on the side opposite to the coated surface of the permeable fabric, and the quality of the metal coated fabric is impaired, and further, the coated metal surface on the opposite side of the flame retardant coated surface is discolored under the influence of the flame retardant in a hot and humid environment. This discoloration of the coated metal surface is presumed to be because the metal surface reacts with a flame retardant and the like, causing corrosion.
[0005]
[Problems to be solved by the invention]
The present invention has been made against the background described above, and its object is to obtain a metal-coated fabric that has flame retardancy and prevents corrosion discoloration of the coated metal.
[0006]
[Means for solving the problems]
The present invention achieves the above object and comprises the following configuration. That is, in the present invention, a resin layer is formed on one surface of a metal-coated fabric, and a resin layer containing a flame retardant is formed on the other surface, and the resin layer on one surface has a coating amount of 0.5. 10 g / m 2 , and is a resin bleed-out preventing layer containing a flame retardant. In the present invention, one resin forming the resin layer is mainly composed of an acrylic resin. The other resin layer containing a flame retardant is a urethane resin. Further, a flame retardant may be added to the acrylic resin layer, and the flame retardant is preferably composed of three types of flame retardants, an organic bromide compound, a phosphate ester, and antimony trioxide. is there. That is, the present invention forms a resin layer on the surface of a metal-coated synthetic fiber fabric and prevents a flame retardant on the back surface in order to prevent corrosion discoloration of the coated metal and to prevent bleeding of the resin containing the flame retardant. The present invention provides a flame-retardant metal-coated cloth for electromagnetic wave shielding, which comprises coating a resin containing the resin.
[0007]
The resin film formed on one surface of the metal-coated fabric is preferably an acrylic resin such as an acrylate ester in consideration of the flexibility of the product. By applying a urethane resin or a polyester resin, the cloth becomes hard, which is not preferable. Moreover, a flame retardant may be added to this acrylic resin, and durability can be improved by adding a crosslinking agent. Examples of the crosslinking agent used include isocyanate resins and epoxy resins.
Coating amount of the resin is preferably from 0.5 to 10 g / m 2, more preferably from 1 to 6 g / m 2. If it is less than this range, the effect of preventing bleeding of the resin containing a flame retardant applied to the opposite surface cannot be obtained sufficiently, and if it is too much, tackiness becomes strong, which is not preferable. The resin is applied by a conventionally known method such as dipping or coating, preferably a knife coating method.
The resin layer containing the flame retardant formed on the other surface of the metal-coated fabric is preferably a urethane resin. A urethane resin is more easily obtained as a flame retardant effect than acrylic resins and ester resins, and is excellent in terms of friction strength and wear strength adhesion. Furthermore, among the urethane resins, a hard yellowing ester-based urethane is preferable in view of physical properties, durability, and economy.
When the acrylic resin layer is formed, a metal-coated fabric having a flexible resin layer is obtained. Moreover, when a urethane resin layer is formed, flame retardancy is easily obtained. Therefore, an acrylic resin layer is formed on one surface to prevent bleeding of the resin from the other surface, and a urethane resin layer containing a flame retardant is formed on the other surface, which is flexible and has an excellent flame retardant effect. A metal-coated fabric can be obtained.
[0008]
The flame retardant used is formed from an organic bromide compound, a phosphate ester, and antimony trioxide.
The ratio of the flame retardant to the solid content of the urethane resin is 40 to 240%, preferably 80 to 160% for the organic bromide compound, 10 to 80%, preferably 20 to 60% for the phosphate ester, and 30 to 160 for antimony trioxide. %, Preferably 60 to 100%. If the ratio is higher than this, the resin film becomes brittle, and if it is less, sufficient flame retardancy cannot be obtained.
As described above, an excellent flame retardant effect can be obtained by combining three types of flame retardants: an organic bromide compound, a phosphate ester, and antimony trioxide.
The coating amount of the resin containing the flame retardant is preferably 50 to 150%, particularly preferably 90 to 110%, based on the fabric weight. If the coating amount is small, flame retardancy is difficult to obtain, and if the coating amount is large, it is economically disadvantageous. As a coating method, a conventionally known method is used.
[0009]
The material of the metal clothing fabric is plain weave, twill weave, satin weave and various woven fabrics applying these weaving methods, or warp knitting, weft knitting, lace knitting and various knittings applying these knitting methods. In addition, any non-woven fabric or the like can be used, and is not particularly limited. Conventionally known fibers such as natural fibers and synthetic fibers can be used, but synthetic fibers are preferable from the viewpoint of durability and processability, and polyester fibers are particularly preferable.
[0010]
【Example】
Examples The present invention will be described in detail by examples, but the present invention is not limited to these examples. The evaluation method of the fabric in an Example and a comparative example is as follows.
[0011]
<Evaluation method>
(1) Evaluation of resin bleeding and metal surface discoloration The bleeding state of the resin containing the flame retardant on the opposite surface was judged with the naked eye.
2. Discoloration evaluation (low humidity)
The sample was allowed to stand at 60 ° C. for 300 hours in the dryer, and the discoloration of the coated metal surface was judged with the naked eye, and evaluated as follows.
○ No discoloration is observed × Discoloration is observed Discoloration evaluation (high humidity)
The sample was left in a thermostatic chamber at 85 ° C. and a humidity of 90% for 300 hours, and the discoloration of the coated metal surface was determined with the naked eye, and was determined in the same manner as the discoloration evaluation (low humidity).
These evaluation results are shown in Table 1.
[0012]
{Circle around (2)} Flame Retardancy Evaluation Evaluated according to UL94 VTM-0.
The evaluation results are shown in Table 2. [0013]
(3) Surface Resistance Value Using a resistance value measuring device, milliohm high tester 3220 manufactured by HIOKI ELECTRIC CO., LTD., The resistance value was measured at a clip parallel electrode width of 10 cm and an interelectrode distance of 10 cm.
The evaluation results are shown in Table 3.
[0014]
(4) Evaluation of shielding properties An electric field wave of 10 MHz to 1 GHz was evaluated by a measuring method devised by the Ikoma Radio Measurement Center of Kansai Electronics Industry Promotion Center.
The evaluation results are shown in Table 4.
[0015]
[Example 1]
The copper electroless plating plain weave fabric having a basis weight of 50 g / m 2 consisting of 100% polyester fiber 10 g / m 2 was plated and then nickel 4g / m 2 plated metal coated fabric of the (total basis weight 64 g / m 2) On one surface, the resin solution shown in the following prescription 1 was coated on the fabric surface by a knife coating method and dried at 130 ° C. for 2 minutes. The coating amount was 3 g / m 2 . Then, the resin liquid shown to the following prescription 2 was apply | coated to the other surface of a metal covering cloth by the knife on roll coating method, and it dried for 2 minutes at 130 degreeC, and obtained the processed cloth of this invention. The coating amount was 70 g / m 2 .
[0016]
Formula 1
100 parts by weight of Toaclon SA6218 (Tope Corp., acrylic resin)
UD crosslinking agent 1.5 parts by weight (manufactured by Dainichi Seika Kogyo Co., Ltd., isocyanate crosslinking agent)
Toluene is added to adjust the viscosity to 25000 cps.
[0017]
Formula 2
Rezamin ME3612LP 100 parts by weight (manufactured by Dainichi Seika Kogyo Co., Ltd., urethane resin, solid content 30%)
38 parts by weight of HBCD (hexabromocyclododecane, bromo content 70%)
Phosphoric ester 14 parts by weight Antimony trioxide 24 parts by weight Toluene is added to adjust the viscosity to 8000 cps.
[0018]
[Comparative Example 1]
On one side of the metal-coated fabric used in Example 1, the resin of Formula 1 described above was applied by a knife coating method and dried at 130 ° C. for 2 minutes. The coating amount was 3 g / m 2 . Further, the resin of Formula 2 described above was applied to the same surface by a knife coating method and dried at 130 ° C. for 2 minutes. The coating amount was 70 g / m 2 .
[0019]
[Comparative Example 2]
The resin of Formula 2 described above was applied to one side of the metal-coated fiber used in Example 1 by a knife coating method and dried at 130 ° C. for 2 minutes. The coating amount was 70 g / m 2 .
[0020]
[Comparative Example 3]
The resin of Formula 1 described above was applied to one side of the metal-coated fiber used in Example 1 by a knife coating method and dried at 130 ° C. for 2 minutes. The coating amount was 3 g / m 2 . Further, a resin of Formula 3 described later was applied on the same surface by a knife coating method and dried at 130 ° C. for 2 minutes. The coating amount was 70 g / m 2 .
[0021]
Formula 3
Rezamin ME3612LP 100 parts by weight (manufactured by Daiichi Seika Kogyo Co., Ltd., urethane resin)
HBCD 12 parts by weight (hexabromocyclododecane)
Toluene is added to 8 parts by weight of antimony trioxide to adjust the viscosity to 8000 cps.
[0022]
[Table 1]
Figure 0004638966
[0023]
[Table 2]
Figure 0004638966
[0024]
[Table 3]
Figure 0004638966
[0025]
[Table 4]
Figure 0004638966
[0026]
【The invention's effect】
In the present invention, a flexible and excellent flame-retardant metal-coated cloth can be obtained, and the initial conductivity can be maintained even in a long-term high-temperature and high-humidity environment, and discoloration of the coated metal can be prevented. Moreover, even if a flame retardant is applied, it is possible to prevent bleeding on the surface of the metal fabric, so that the surface quality is not impaired. Furthermore, by using a polyester fiber fabric, a metal-coated fabric having a soft texture and a thin texture can be obtained, and an excellent product as a shielding material for electronic parts can be provided.

Claims (5)

金属被覆布帛の一方の面に樹脂層を形成し、他方の面に難燃剤を含む樹脂層が形成されていることを特徴とする難燃性を有する金属被覆布帛であって、該一方の面の樹脂層が、塗工量0.5〜10g/mであり、かつ、難燃剤を含む樹脂の滲みだし防止層であって前記難燃剤を含む樹脂の滲みだし防止層を形成したのち、他方の面に難燃剤を含む樹脂層を形成してなる電磁波シールド用金属被覆布帛。A metal-coated fabric having flame retardancy, wherein a resin layer is formed on one surface of a metal-coated fabric, and a resin layer containing a flame retardant is formed on the other surface, the one surface the resin layer is a coating weight 0.5 to 10 g / m 2, and I-preventing layer der seeped resin containing a flame retardant to form an anti-layer seeped resin containing the flame retardant Thereafter, a metal-coated cloth for electromagnetic wave shielding, in which a resin layer containing a flame retardant is formed on the other surface . 樹脂層を形成する一方の樹脂がアクリル樹脂を主体とする樹脂層であり、他方の難燃剤を含む樹脂がウレタン樹脂であることを特徴とする請求項1記載金属被覆布帛。The metal-coated fabric according to claim 1, wherein one resin forming the resin layer is a resin layer mainly composed of an acrylic resin, and the other resin containing a flame retardant is a urethane resin. 難燃剤が有機ブロム化合物、リン酸エステル、三酸化アンチモンの三種類の難燃剤より形成されている請求項1乃至2記載の金属被覆布帛。The metal-coated fabric according to claim 1 or 2, wherein the flame retardant is formed from three types of flame retardants: an organic bromide compound, a phosphate ester, and antimony trioxide. 金属被覆布帛が、合成繊維から成る布帛に金属被膜が形成されていることを特徴とする請求項1乃至3記載の金属被覆布帛。4. The metal-coated cloth according to claim 1, wherein the metal-coated cloth has a metal film formed on a cloth made of synthetic fibers. 合成繊維がポリエステルである請求項4記載の金属被覆繊維。The metal-coated fiber according to claim 4, wherein the synthetic fiber is polyester.
JP27773898A 1998-09-30 1998-09-30 Flame retardant metal coated fabric Expired - Lifetime JP4638966B2 (en)

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