JP2004197283A - Method for preventing deterioration of electroconductive fiber - Google Patents
Method for preventing deterioration of electroconductive fiber Download PDFInfo
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- JP2004197283A JP2004197283A JP2002369490A JP2002369490A JP2004197283A JP 2004197283 A JP2004197283 A JP 2004197283A JP 2002369490 A JP2002369490 A JP 2002369490A JP 2002369490 A JP2002369490 A JP 2002369490A JP 2004197283 A JP2004197283 A JP 2004197283A
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Abstract
Description
【０００１】
【発明の属する技術分野】
本発明は、電磁波シールド素材や電磁波シールド衣料などの導電性繊維の劣化を防止する方法に関する。また、本発明は、導電性の劣化が抑制された衣料に関する。
【０００２】
【従来の技術】
従来、人体の電磁波障害防護対策として、衣料による電磁波シールドがある。導電性繊維や化学繊維を編み込んだり、また織り込んだりした生地が提案された（特許文献１参照）。または、導電性繊維を芯糸とし、これに非導電性繊維をカバーリングした複合糸を用いた布帛が提案された（特許文献２参照）。
【０００３】
しかしながら、これらの衣料は、繰り返し着用及び洗濯を行うと、その電磁波シールド性能が低下するという問題があった。
【０００４】
【特許文献１】
特開平10-77507号公報
【０００５】
【特許文献２】
特開平11-50352号公報
【０００６】
【発明が解決しようとする課題】
本発明は、上述のような実状に鑑みてなされたもので、本発明の目的は、着用による不快感がなく、繰り返し着用及び洗濯しても、その電磁波シールド性能を維持できる衣料用素材を提供することである。
【０００７】
【課題を解決するための手段】
本発明は、銀を付着させた導電性繊維に、防錆加工、樹脂加工及び撥水加工からなる群から選択される少なくとも２つの加工処理を行うことにより、該繊維の汗による化学的劣化又は洗濯等による物理的劣化を抑制し、耐久性に優れる電磁波シールド素材を提供することができることを見出した。
【０００８】
即ち、本発明は、以下の導電性繊維劣化防止法及び該方法により劣化防止された衣料に関する。
項１． 銀を付着させた導電性繊維を単独で又は他の繊維と編成した生地に、防錆加工処理、樹脂加工処理及び撥水加工処理からなる群から選択される少なくとも２つの処理をする、導電性繊維劣化防止方法。
項２． 防錆加工処理後、撥水加工処理をする、項１の方法。
項３． 防錆加工処理後、同浴で樹脂加工処理及び撥水加工処理をする、項１の方法。
項４． 防錆加工処理の処理液がキレート剤を含む、項１〜３の方法。
項５． 導電性繊維が、スパッタリング、真空蒸着又は無電解メッキにより銀を付着させることを特徴とする項１〜４のいずれかの方法。
項６． 項１〜５の方法で処理された生地から作られた衣料。
【０００９】
【発明の実施の形態】
本発明は、銀を付着させた導電性繊維を単独で編成した、或いは、他の繊維、例えば合成繊維（ポリエステル、ナイロン、アクリル、ポリプロピレンなど）または天然繊維（ウール、綿など）と編成した生地に、防錆加工、樹脂加工及び撥水加工からなる群から選択される少なくとも２つの加工をすることにより、該導電性繊維の劣化を抑制し、電磁波遮蔽効果の耐久性を向上させる導電性繊維劣化防止法に関する。
【００１０】
本発明における防錆加工は、銀をキレート化する加工が好ましい。防錆加工処理は、浸漬法、スプレー法、塗布法などの従来の方法により行うことができる。防錆剤は、銀の防錆処理に用いられる防錆剤であれば良く、好ましくは銀とキレート錯体を形成し得るキレート剤、及び必要に応じてキレート補助剤を含むものである。防錆剤の例として、大和化成製ニューダインシルバーなどが挙げられる。防錆加工処理温度は、特に限定されない。また、防錆加工処理時間についても限定的なものではない。防錆処理の処理液の濃度は、５〜２０重量％が好ましく、処理液の溶媒として、テトラヒドロフラン、メタノール、エタノールなどの水溶性溶媒、水、それらの混合溶液などが用いられる。
【００１１】
本発明における樹脂加工において用いられる樹脂は、通常使用し得る樹脂であり、ポリアミド樹脂、ポリプロピレン樹脂、シリコン樹脂、ウレタン樹脂、アクリル樹脂、熱硬化性樹脂（フェノール樹脂、メラミン樹脂など）などが挙げられ、好ましくはポリアミド樹脂、シリコン系樹脂である。該樹脂を生地にスプレーコートあるいはパディング加工し、乾燥又は熱処理を行うことにより、該樹脂を架橋させ、生地と該樹脂との密着性を向上させることができる。この時、加工液中の樹脂の濃度は７％以下が好ましく、より好ましくは4〜6％である。加工液中の樹脂濃度が７％以下であると、生地の柔軟性が高いので好ましい。また、加工液は、架橋剤などを含んでも良い。加工液の溶媒として、テトラヒドロフラン、メタノール、エタノールなどの水溶性溶媒、水、それらの混合溶液などが用いられる。
【００１２】
本発明における撥水加工法は、パディング、コーティング法、スプレー法又は浸漬法などの方法により、フッ素系の撥水樹脂を生地に付与し、その後、ピンテンター等の適宜の手段により乾燥させる。フッ素系の撥水樹脂の例として、フッ素を含有する各種の有機系樹脂が挙げられるが、特にフルオロアルキル基を含有するアクリル酸エステル、メタクリル酸エステル、アルキルアクリルアミド、アルキルビニルエーテル、ビニルアルキルケトン等の不飽和モノマーの重合体、あるいはそれらの共重合体が挙げられる。
【００１３】
撥水加工液の溶媒として、テトラヒドロフラン、メタノール、エタノールなどの水溶性溶媒、水、それらの混合溶液などが用いられる。加工液中の樹脂濃度は２〜１０重量％、好ましくは４〜６重量％である。撥水させる生地の種類にもよるが、処理温度は１５０℃〜１９０℃、好ましくは１６０℃〜１８０℃であり、処理時間は、約１分〜約３分が好ましい。
【００１４】
本発明の防錆加工、樹脂加工及び撥水加工は、少なくとも２つを組み合わせて行われ、好ましくは、３つ全ての加工が行われる。３つ全ての加工が行われる場合、防錆加工を最初にするのが好ましく、より好ましくは、防錆加工、樹脂加工、撥水加工の順であり、この時、樹脂加工と撥水加工は同時に行っても良い。また、例えば、樹脂加工と撥水加工の両方の性質を有する樹脂を用いる場合は、樹脂加工又は撥水加工のいずれかを行えば良い。
【００１５】
本発明の導電性繊維に用いられる繊維は、ポリアミド、ポリエステル、アクリル、ポリプロピレンなどの合成繊維、綿、絹、麻などの天然繊維、或いはそれらの混紡繊維であり、好ましくはポリエステルである。
【００１６】
本発明の導電性繊維は、スパッタリング、真空蒸着あるいは無電解メッキなどにより上記繊維に銀を付着させることにより得られる。
【００１７】
本発明の導電性繊維は、単独で又は他の繊維と編成される。編成された組織として、シングルコード編、平編、ゴム編、パール編などのよこ編、並びにデンビー編、コード編、アトラス編などのたて編などが挙げられ、好ましくはよこ編である。
【００１８】
本発明の方法で処理された生地から作られた衣料は、繰り返し洗濯され、肌に直接触れる肌着のような衣料としても、用いられることができる。
【００１９】
【実施例】
下記実施例において、生地の電磁波シールド性能は次のようにして測定した。
【００２０】
近距離間に送信アンテナと受信アンテナとを設置したシールドボックス（MB8602B；アンリツ社製）内で、アンテナ間に測定しようとする素材を挟持し、携帯電話の1周波数帯である800MHzにおける減衰状態をスペクトラムアナライザ（TR4173；アドバンテスト社製）で測定した。また、素材を挟持しないで、上記同様に減衰状態を測定し、それらの差（dB）を、該素材の電磁波シールド性能であると評価した。
【００２１】
実施例１
ポリエステルマルチフィラメントに銀メッキを施した導電性繊維（三菱マテリアル製シルファイバー）とポリエステルとのよこ編みのシングルコード編みの生地に、防錆剤（大和化成製ニューダインシルバー）の１０％水溶液で浸漬加工し、次に東レ製CM4000の4％メタノール溶液を用いてパディングにて樹脂加工した。さらに、共栄社化学製FR-448の７％水溶液を用いて、１８０℃で１分間、パディングにて撥水加工処理をした。
【００２２】
このように得られた電磁波シールド性生地を前身頃に用いた肌着を作った。上記の方法で、該肌着の導電性生地部分の電磁波シールド性を測定した。該肌着を着用している間、不快感がなかった。
【００２３】
該肌着の着用及び洗濯を５０回行い、１０回行う毎に、上記方法で該導電性生地部分の電磁波シールド性を測定した。
【００２４】
その結果を表１に示す。
【００２５】
実施例２
実施例１と同様の生地に、防錆剤（大和化成製ニューダインシルバー）を浸漬加工し、次にパディングにて、樹脂加工（北広ケミカル製TF-3800の６％水溶液）と撥水加工（共栄社化学製FR-448の5％水溶液）を同浴処理した。
【００２６】
このように得られた電磁波シールド性生地を前身頃に用いた肌着を作った。該肌着の導電性生地部分の表面を、走査型顕微鏡を用いて観察した（図１）。また、上記方法で該導電性生地部分の電磁波シールド性能を測定した。該肌着を着用している間、不快感がなかった。
【００２７】
該肌着の着用及び洗濯を１０回行う毎に、上記のように該導電性生地部分の電磁波シールド性能を測定し、５０回行った後、該生地の表面を走査型顕微鏡を用いて観察した（図２）。電磁波シールド性能の測定結果を表１に示す。
【００２８】
実施例３
実施例１と同様の生地に、防錆剤（大和化成製ニューダインシルバー）の１０％水溶液で浸漬加工し、共栄社化学製FR-448の５％水溶液を用いて、１８０℃で１分間、パディングにて撥水加工処理をした。
【００２９】
このように得られた電磁波シールド性生地を前身頃に用いた肌着を作った。上記方法で該肌着の導電性生地部分の電磁波シールド性能を測定した。該肌着を着用している間、不快感がなかった。
【００３０】
該肌着の着用及び洗濯を１０回行う毎に、上記のように該導電性生地部分の電磁波シールド性能を測定した。電磁波シールド性能の測定結果を表１に示す。
【００３１】
比較例１
加工を全く行わない以外は、実施例２と同様に行った。
【００３２】
得られた肌着の導電性生地部分の表面観察の結果を図３及び４に示し、該導電性生地部分の電磁波シールド性能の測定結果を表１に示す。該肌着を着用している間、不快感がなかった。
【００３３】
比較例２
実施例１と同様の生地に、防錆剤（大和化成製ニューダインシルバー）の10％水溶液でパディング加工した。
【００３４】
比較例１と同様に得られた肌着の電磁波シールド性能の測定結果を表１に示す。該肌着を着用している間、不快感がなかった。
【００３５】
【表１】
表１から、本発明の加工処理を施すことにより、導電性繊維の銀メッキが剥離しないので、電磁波シールド性能の生地の耐久性が向上することが分かる。
【００３７】
【発明の効果】
本発明により、導電性繊維における付着した銀の汗による化学的劣化、又は洗濯などの物理的劣化を抑制し、導電性繊維の耐久性を向上させることができる。
【００３８】
本発明の方法により、着用による不快感がなく、繰り返し着用及び洗濯しても、その電磁波シールド性能を維持できる衣料用素材を提供することができる。
【図面の簡単な説明】
【図１】実施例２において、着用前の導電性生地部分表面の走査型顕微鏡写真のコピーである。
【図２】実施例２において、着用５０回後の導電性生地部分表面の走査型顕微鏡写真のコピーである。
【図３】比較例１において、着用前の導電性生地部分表面の走査型顕微鏡写真のコピーである。
【図４】比較例１において、着用５０回後の導電性生地部分表面の走査型顕微鏡写真のコピーである。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for preventing deterioration of conductive fibers such as electromagnetic wave shielding materials and electromagnetic wave shielding clothing. In addition, the present invention relates to clothing in which deterioration of conductivity is suppressed.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there has been an electromagnetic wave shield made of clothing as a measure for protecting a human body against electromagnetic wave interference. A fabric in which conductive fibers or chemical fibers are woven or woven has been proposed (see Patent Document 1). Alternatively, a fabric using a composite yarn in which conductive fibers are used as a core yarn and non-conductive fibers are covered with the core yarn has been proposed (see Patent Document 2).
[0003]
However, these clothings have a problem that the electromagnetic wave shielding performance is reduced when repeatedly worn and washed.
[0004]
[Patent Document 1]
JP-A-10-77507 [0005]
[Patent Document 2]
JP 11-50352 A
[Problems to be solved by the invention]
The present invention has been made in view of the above situation, and an object of the present invention is to provide a material for clothing that does not cause discomfort due to wearing and that can maintain its electromagnetic wave shielding performance even when repeatedly worn and washed. It is to be.
[0007]
[Means for Solving the Problems]
The present invention provides a conductive fiber to which silver is attached, by performing at least two processing selected from the group consisting of rustproofing, resin processing and water-repellent processing, thereby chemically degrading the fiber due to sweat. It has been found that physical deterioration due to washing or the like can be suppressed and an electromagnetic wave shielding material having excellent durability can be provided.
[0008]
That is, the present invention relates to the following conductive fiber deterioration preventing method and clothing which is prevented from being deteriorated by the method.
Item 1. Conducting at least two treatments selected from the group consisting of a rust-proofing treatment, a resin treatment and a water-repellent treatment on a cloth knitted with conductive fibers to which silver is attached alone or with other fibers, Fiber degradation prevention method.
Item 2. Item 2. The method according to Item 1, wherein a water-repellent treatment is performed after the rust-proof treatment.
Item 3. Item 4. The method according to Item 1, wherein after the rustproofing treatment, a resin treatment and a water-repellent treatment are performed in the same bath.
Item 4. Item 4. The method according to any one of Items 1 to 3, wherein the treatment liquid for the rust prevention treatment contains a chelating agent.
Item 5. Item 5. The method according to any one of Items 1 to 4, wherein silver is attached to the conductive fiber by sputtering, vacuum deposition or electroless plating.
Item 6. Items made of the cloth treated by the method of any one of Items 1 to 5.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
The present invention relates to a fabric in which conductive fibers to which silver is attached are knitted alone, or knitted with other fibers such as synthetic fibers (polyester, nylon, acrylic, polypropylene, etc.) or natural fibers (wool, cotton, etc.). A conductive fiber that suppresses deterioration of the conductive fiber and improves durability of an electromagnetic wave shielding effect by performing at least two processes selected from the group consisting of rustproofing, resin processing, and water-repellent processing It relates to the Deterioration Prevention Law.
[0010]
The rust prevention process in the present invention is preferably a process for chelating silver. The rust prevention treatment can be performed by a conventional method such as an immersion method, a spray method, and a coating method. The rust preventive may be any rust preventive used for the rust preventive treatment of silver, and preferably contains a chelating agent capable of forming a chelate complex with silver and, if necessary, a chelating auxiliary. Examples of the rust preventive include New Dyne Silver manufactured by Daiwa Kasei. The rust preventive processing temperature is not particularly limited. Further, the rust prevention processing time is not limited. The concentration of the treatment liquid for the rust prevention treatment is preferably 5 to 20% by weight, and as the solvent of the treatment liquid, a water-soluble solvent such as tetrahydrofuran, methanol, ethanol, water, a mixed solution thereof, or the like is used.
[0011]
The resin used in the resin processing in the present invention is a resin that can be generally used, and examples thereof include a polyamide resin, a polypropylene resin, a silicone resin, a urethane resin, an acrylic resin, and a thermosetting resin (a phenol resin, a melamine resin, and the like). Preferred are polyamide resins and silicone resins. By spray-coating or padding the resin onto the dough, and drying or heat-treating the resin, the resin can be cross-linked to improve the adhesiveness between the dough and the resin. At this time, the concentration of the resin in the working fluid is preferably 7% or less, more preferably 4 to 6%. It is preferable that the resin concentration in the working fluid is 7% or less, since the fabric has high flexibility. Further, the working liquid may include a crosslinking agent and the like. As the solvent of the working fluid, a water-soluble solvent such as tetrahydrofuran, methanol, ethanol or the like, water, a mixed solution thereof or the like is used.
[0012]
In the water-repellent processing method of the present invention, a fluorine-based water-repellent resin is applied to the cloth by a method such as padding, a coating method, a spray method, or an immersion method, and then dried by an appropriate means such as a pin tenter. Examples of the fluorine-based water-repellent resin include various organic resins containing fluorine, particularly acrylic acid esters containing a fluoroalkyl group, methacrylic acid esters, alkyl acrylamides, alkyl vinyl ethers, vinyl alkyl ketones and the like Examples thereof include polymers of unsaturated monomers or copolymers thereof.
[0013]
As a solvent of the water-repellent processing liquid, a water-soluble solvent such as tetrahydrofuran, methanol, and ethanol, water, a mixed solution thereof, and the like are used. The resin concentration in the working fluid is 2 to 10% by weight, preferably 4 to 6% by weight. Although depending on the type of the fabric to be water-repellent, the processing temperature is 150 ° C. to 190 ° C., preferably 160 ° C. to 180 ° C., and the processing time is preferably about 1 minute to about 3 minutes.
[0014]
The rustproofing process, the resin process, and the water-repellent process of the present invention are performed by combining at least two, and preferably all three processes are performed. When all three processes are performed, it is preferable to perform the rust-preventive process first, and more preferably, in the order of rust-preventive process, resin process, and water-repellent process. You may go at the same time. Further, for example, when a resin having both properties of resin processing and water repellent processing is used, either resin processing or water repellent processing may be performed.
[0015]
The fiber used for the conductive fiber of the present invention is a synthetic fiber such as polyamide, polyester, acrylic or polypropylene, a natural fiber such as cotton, silk or hemp, or a blended fiber thereof, and is preferably polyester.
[0016]
The conductive fiber of the present invention can be obtained by attaching silver to the fiber by sputtering, vacuum deposition, electroless plating, or the like.
[0017]
The conductive fibers of the present invention are knitted alone or with other fibers. Examples of the knitted structure include a weft knit such as a single cord knit, a flat knit, a rubber knit, and a pearl knit, and a vertical knit such as a denby knit, a cord knit, and an atlas knit, and are preferably a weft knit.
[0018]
Clothing made from the fabric treated by the method of the present invention can also be used as clothing, such as underwear, which is repeatedly washed and comes into direct contact with the skin.
[0019]
【Example】
In the following examples, the electromagnetic wave shielding performance of the fabric was measured as follows.
[0020]
A material to be measured is sandwiched between antennas in a shield box (MB8602B; Anritsu Corporation) where a transmitting antenna and a receiving antenna are installed in a short distance, and the attenuation state at 800 MHz, which is one frequency band of a mobile phone, is measured. It was measured with a spectrum analyzer (TR4173; manufactured by Advantest). Further, the attenuation state was measured in the same manner as described above without sandwiching the material, and the difference (dB) between them was evaluated as the electromagnetic wave shielding performance of the material.
[0021]
Example 1
Dipped in a 10% aqueous solution of a rust inhibitor (Daiwa Kasei New Dyne Silver) in a weft-knit single cord knitted fabric made of polyester multifilament silver-coated conductive fiber (Mitsubishi Materials Sill Fiber) and polyester. Then, resin processing was performed by padding using a 4% methanol solution of CM4000 manufactured by Toray. Further, a water repellent treatment was performed by padding at 180 ° C. for 1 minute using a 7% aqueous solution of Kyoeisha Chemical FR-448.
[0022]
Underwear was produced using the thus obtained electromagnetic wave shielding fabric for the front body. The electromagnetic wave shielding property of the conductive cloth portion of the underwear was measured by the above method. There was no discomfort while wearing the underwear.
[0023]
The undergarment was worn and washed 50 times, and the electromagnetic wave shielding property of the conductive cloth was measured by the above method every 10 times.
[0024]
Table 1 shows the results.
[0025]
Example 2
A rust inhibitor (New Dyne Silver manufactured by Daiwa Kasei Co., Ltd.) is immersed in the same fabric as in Example 1, and then, resin processing (6% aqueous solution of TF-3800 manufactured by Kitahiro Chemical) and padding are performed by padding. (5% aqueous solution of Kyoeisha Chemical FR-448) was subjected to the same bath treatment.
[0026]
Underwear was produced using the thus obtained electromagnetic wave shielding fabric for the front body. The surface of the conductive cloth portion of the underwear was observed using a scanning microscope (FIG. 1). Further, the electromagnetic wave shielding performance of the conductive cloth portion was measured by the above method. There was no discomfort while wearing the underwear.
[0027]
Each time the undergarment was worn and washed 10 times, the electromagnetic wave shielding performance of the conductive fabric portion was measured as described above, and after performing 50 times, the surface of the fabric was observed using a scanning microscope ( (Fig. 2). Table 1 shows the measurement results of the electromagnetic wave shielding performance.
[0028]
Example 3
The same fabric as in Example 1 was immersed in a 10% aqueous solution of a rust inhibitor (New Dyne Silver manufactured by Daiwa Kasei) and padded at 180 ° C. for 1 minute using a 5% aqueous solution of FR-448 manufactured by Kyoeisha Chemical. Was subjected to a water-repellent treatment.
[0029]
Underwear was produced using the thus obtained electromagnetic wave shielding fabric for the front body. The electromagnetic wave shielding performance of the conductive cloth portion of the underwear was measured by the above method. There was no discomfort while wearing the underwear.
[0030]
Each time the undergarment was worn and washed ten times, the electromagnetic shielding performance of the conductive cloth portion was measured as described above. Table 1 shows the measurement results of the electromagnetic wave shielding performance.
[0031]
Comparative Example 1
The same procedure was performed as in Example 2 except that no processing was performed.
[0032]
The results of observing the surface of the conductive cloth portion of the obtained underwear are shown in FIGS. 3 and 4, and the measurement results of the electromagnetic shielding performance of the conductive cloth portion are shown in Table 1. There was no discomfort while wearing the underwear.
[0033]
Comparative Example 2
The same fabric as in Example 1 was padded with a 10% aqueous solution of a rust inhibitor (New Dyne Silver manufactured by Daiwa Kasei).
[0034]
Table 1 shows the measurement results of the electromagnetic wave shielding performance of the underwear obtained in the same manner as in Comparative Example 1. There was no discomfort while wearing the underwear.
[0035]
[Table 1]
From Table 1, it can be seen that by performing the processing of the present invention, the silver plating of the conductive fiber does not peel off, and the durability of the fabric having the electromagnetic wave shielding performance is improved.
[0037]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the chemical deterioration by the sweat of the silver which adhered to the conductive fiber or the physical deterioration of washing etc. can be suppressed, and the durability of a conductive fiber can be improved.
[0038]
According to the method of the present invention, it is possible to provide a material for clothing that does not cause discomfort due to wearing and that can maintain its electromagnetic wave shielding performance even when repeatedly worn and washed.
[Brief description of the drawings]
FIG. 1 is a copy of a scanning micrograph of the surface of a conductive cloth portion before wearing in Example 2.
FIG. 2 is a copy of a scanning micrograph of the surface of a conductive cloth portion after 50 times of wearing in Example 2.
FIG. 3 is a copy of a scanning micrograph of the surface of a conductive cloth portion before wearing in Comparative Example 1.
FIG. 4 is a copy of a scanning micrograph of the surface of the conductive fabric portion 50 times after wearing in Comparative Example 1.
Claims (6)
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| JP2002369490A JP4355892B2 (en) | 2002-12-20 | 2002-12-20 | Manufacturing method of electromagnetic shielding material |
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| JP2002369490A JP4355892B2 (en) | 2002-12-20 | 2002-12-20 | Manufacturing method of electromagnetic shielding material |
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| JP4355892B2 JP4355892B2 (en) | 2009-11-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007063704A (en) * | 2005-08-31 | 2007-03-15 | Japan Exlan Co Ltd | Electroconductive fiber |
| CN106988002A (en) * | 2017-05-02 | 2017-07-28 | 南昌市婧麒服饰有限公司 | A kind of fabric for shielding electromagnetic wave and its manufacture method |
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2002
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007063704A (en) * | 2005-08-31 | 2007-03-15 | Japan Exlan Co Ltd | Electroconductive fiber |
| CN106988002A (en) * | 2017-05-02 | 2017-07-28 | 南昌市婧麒服饰有限公司 | A kind of fabric for shielding electromagnetic wave and its manufacture method |
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