JP4096175B2 - Laminated yarn - Google Patents

Description

つぎに、積層糸を約１ミリ間隔で編込んだ靴下のつま先部分を使用して、シェークフラスコ法により抗菌性試験を行った。なお、供試菌として肺炎桿菌を使用し、無加工布（ナイロン製）を実験対照として使用した。その結果を表２に示す。

さらに、積層糸を２ｍｍ間隔で編み込んだパンティストッキングを使用して、ＳＥＫ菌数測定法により抗菌性試験を行った。なお、供試菌として白癬菌を使用し、実験対照として無加工布（ナイロン製）を使用した。その結果を表３に示す。

表１，表２および表３からも明らかなように、同数の供試菌を接種し、一定時間後の残存菌数を比較すると、試料と実験対照との間には抗菌力において充分な違いがあり、積層糸には十分な抗菌効果があることが認められた。また、上記積層糸の抗菌スペクトルは、細菌（原核生物）である肺炎桿菌から真菌（真核生物）である白癬菌にいたる幅広いものであることが認められた。
（３）耐洗濯性試験
地糸に積層糸を４ｍｍ間隔で織り込んだタオル地を規定回数洗濯したあと、シェークフラスコ法により抗菌性試験を行ない、洗濯による抗菌力の変化を調べた。なお、供試菌として肺炎桿菌を使用した。その結果を表４に示す。

つぎに、積層糸を５ｍｍ間隔で織り込んだ食品ラップ布を規定回数洗濯したあと、シェークフラスコ法により抗菌性試験を行ない、洗濯による抗菌力の変化を調べた。なお、供試菌として大腸菌を使用した。その結果を表５に示す。

さらに、積層糸を５ｍｍ間隔で織り込んだ食品ラップ布を規定回数洗濯したあと、ＳＥＫ統一試験法により抗菌性試験を行ない、洗濯による抗菌力の変化を調べた。なお、供試菌として大腸菌Ｏ−１５７を使用し、実験対照として綿ガーゼを使用した。その結果を表６に示す。

表４，表５および表６からも明らかなように、積層糸の抗菌力は、洗濯を繰り返しても低下することなく、むしろ洗濯を繰り返すほど不純物がなくなり抗菌力が向上することが分かった。
（４）耐塩素漂白剤性試験
約１０グラムの積層糸を束ね、規定回数漂白したあとの色変化を観察した。なお、漂白液は蒸留水３００ｍｌに台所用漂白剤１２ｍｌを加えたものを使用し、温度による違いを見るために温度を変えて実験した。その結果を表７示す。

表７からも明らかなように、束ねた積層糸を漂白しても、特に、５０℃、３０分という過酷な条件下で漂白しても、積層糸が黒化しないことが確認された。
（５）帯熱防止性試験
積層糸を５ｍｍ間隔で編みこんだ天竺でＴシャツをつくり、当該Ｔシャツ上約２０ｃｍから赤外線ランプで加熱し、その表面及び生地内の温度変化を調べた。その結果を第２図のグラフに示す。なお、実験対照として積層糸を含まないＴシャツを使用した。
第２図からも明らかなように、積層糸を織り込んでも、帯熱防止性は低下せず、実験対照と同程度にしか温度が上昇しないことが分かった。
（６）熱遮断性試験
積層糸を芯糸とし、綿短繊維で周囲をカバーした綿番手で３０番単糸のコアヤーンを製糸し、当該コアヤーンを縦糸又は横糸として１インチあたりそれぞれ、２０本（Ａ）、１２本（Ｂ）、７本（Ｃ）づつ含むコート生地を製造した。そして、コート生地（Ａ），（Ｂ）、（Ｃ）及び積層糸を含まないコート生地（ブランク）の前側から、ライトを照射し生地前後の温度差を測定した。生地前後の温度差の経時変化を表８に示すとともに、５分照射後の各生地の測定温度を表９に示す。

表８及び表９において、ライト照射５分後の生地前後の温度差を比較すると、コアヤーンを１インチあたり２０本含む（Ａ）の温度差は、ブランクと比べて２〜３度程度大きいことがわかる。このことから、積層糸を含むコアヤーンを織り込むことにより、熱遮断性が向上していることがわかった。
（７）帯電防止性試験
（５）で製造したＴシャツを使用して、ＪＩＳ １０９４−５に記載の方法に沿って帯電防止機能試験を行った。測定条件は、温度２０℃、湿度２０％である。その結果を表１０に示す。なお、実験対照として積層糸を含まないＴシャツを使用した。

表１０に示すように、Ｔシャツに蓄積する静電気の容量や電圧が低下しており、積層糸を織り込むことにより、帯電防止機能が向上していることが分かった。
「実験例２」
（８）撚糸の製造
厚さ９ミクロンのポリエステルフィルム（東レ製）に、真空蒸着技術によって、純銀（純度９９．９９％、三菱マテリアル製）からなる厚さ５０ｎｍの金属被膜を成膜し、成膜した合成樹脂フィルムを蒸着被膜同士が内側になるようにポリエステル系接着剤（住友３Ｍ製）で接着し、幅１５０ミクロンに裁断して積層糸を製造した。そして、その積層糸に、３０デニール／５フィラメントのポリエステル糸を左右逆方向に１本づつ撚り合わせ撚糸を製造した。
（９）紳士スーツ裏地用生地の製造
５０デニール／１０フィラメントのポリエステル糸（東レ製）を１インチ間に１５０本入るように整経した縦糸に、７５デニール／７２フィラメントのポリエステル糸（東レ製）３０本と（８）で製造した撚糸とが１インチ間に合計７０本となるように組み合わせてなる横糸を綾織に織り込み、精錬したのち、分散染料で青色に染めて、紳士スーツ裏地用生地を製造した。なお、紳士スーツ裏地用生地中の撚糸は青のメタリック色を呈色し、その撚糸の間隔は約１０ミリであった。
（１０）帯電防止性試験
撚糸のかわりに７５デニール／７２フィラメントのポリエステル糸（東レ製）を使用した実験対照を（９）と同様の方法で製造し、温度２０℃、湿度２０％の環境下で、ナイロンとアクリルの生地で１分間摩擦し摩擦を止めた瞬間の帯電圧を測定して帯電防止性試験を行った。その結果、実験対照の耐電圧が４０００ボルトを越えるのに対して、（９）で製造した紳士スーツ裏地用生地の帯電圧は３００ボルト以下であった。
「実験例３」
（１１）紳士スーツ裏地用生地の製造
（８）で製造した撚糸が１インチ間に均等なピッチで１０本になること、及び分散染料で黒に染色することを除いて、（９）と同様の方法で紳士スーツ裏地用生地を製造した。なお、紳士スーツ裏地用生地中の撚糸は黒いメタリック色を呈色し、撚糸の間隔は約２．５ミリであった。
（１２）熱遮断性試験
撚糸のかわりに７５デニール／７２フィラメントのポリエステル糸（東レ製）を使用した実験対照を（１１）と同様の方法で製造し、次の（ａ）〜（ｄ）の手順にしたがって熱遮断性試験を行った。まず、（ａ）片方向にライト（ナショナルランプ：ＰＲＦ‐５００ｗＷＢ２個を使用）を設置し、（ｂ）ライトから３０ｃｍ離れた場所であって、ライトの光の進行方向に直角となる場所に、実験対照と（１１）で製造した紳士スーツ裏地用生地を、それぞれ茶色の服地と２枚合せにしたのち、衝立状に置き、（ｃ）５分間ライトを照射し、（ｄ）実験対象と（１１）で製造した紳士スーツ裏地用生地のライト側のとその反対側の温度差を計測した。
その結果、実験対照のライト側の温度は４４．８℃であり、ライトの反対側の温度は２９．１℃であった。また、（１１）で製造した紳士スーツ裏地用生地ライト側の温度は４６．１℃であり、ライトの反対側の温度は２７．２℃であった。したがって、（１１）で製造した紳士スーツ裏地用生地は、実験対照に比べ、ライト側（熱源側）で１．３℃、その反対側で１．９℃の熱を遮断したことが分かった。
「実験例４」
（１３）コート用生地の製造
（１）で製造した積層糸を綿の繊維でカバーして、綿番手３０番手のコアヤーンを製造した。つぎに、、１インチ当たり３０番手の綿糸が１５０本となるように整経した縦糸に、前記コアヤーン１本に対して３０番手綿糸が５本となるような割合で組み合わせた横糸を、１インチ当たり８０本となるように同一間隔で織り込んでギャバジン生地を製造し、精錬したのち、反応染料と分散染料で黒色に染めて、コート用生地を製造した。
（１４）熱遮断性試験
横糸として３０番手綿糸のみを使用したことを除くと、（１３）と同様にして製造したコート用生地を実験対象として、（１２）と同様の方法で熱遮断性試験を行った。
その結果、実験対照のライト側の温度は４０．５℃あり、ライトの反対側の温度は２８．２℃であった。また、（１３）で製造した紳士スーツ裏地用生地のライト側の温度は４３．３℃であり、反対側の温度は２６℃であった。したがって、（１３）で製造したコート用生地は、実験対照に比べ、ライト側（熱源側）で２．８℃、その反対側で２．２℃の熱を遮断したことが分かった。
「実験例５」
（１５）ワイシャツの製造
４０番手の綿糸を１インチ間に１３０本整経した縦糸に、４０番手綿糸４本と（１３）で使用したコアヤーン１本の割合で組み合わせた横糸を、１インチ間に８５本織り込んだブロード生地を晒ししてワイシャツを製造した。
（１６）熱遮断性試験
同一人物が、気温１８℃、湿度５０％環境の中で、（１５）で製造したワイシャツと実験対照のワイシャツを５分の歩行運動後に着用して、着用後静止状態を３分保ち、皮膚表面温度の差異をサーモグラフで測定した。なお、実験対象のワイシャツは、コアヤーンの代わりに４０番手綿糸を使用したことを除けば、（１５）と同様にして製造されたものである。
その結果、実験対照と比較して（１５）で製造されたワイシャツは、保温力で３．２℃優れていることが分かった。
「実験例６」
（１７）レースカーテン用布地の製造
１インチ間にポリエステル１５０デニールの糸９０本と、その間に均等に挿入された撚糸（（８）で製造したものと同一である）１０本とを経糸として、経編機の一種であるラッシェル機により編んで、精錬し、レースカーテン用布地を製造した。
（１８）熱遮断性試験
茶色の服地の代わりに標準白布（綿金巾）を使用したことを除いて、（１２）と同様にして熱遮断性試験を行った。なお、実験対照としては、撚糸の代わりにポリエステル１５０デニールの糸を使用したことを除くと、（１７）と同様にして製造したレースカーテン用布地を使用した。
その結果、実験対照のライト側の温度は４１．７℃あり、ライトの反対側の温度は２５．８℃であった。また、（１７）で製造したレースカーテン用布地のライト側の温度は４３．８℃であり、ライトの反対側の温度は２６．３℃であった。したがって、（１７）で製造したレースカーテン用布地はライト側で２．１℃高いことが分かった。
このように、積層糸１及び積層糸１を含む布地は、優れた抗菌性、耐洗濯性、耐熱防止性、熱遮断性、帯電防止性等を備えているとともに、優れた審美性を備えている。
なお、この発明は、上記実施の形態及び実施例に限定されるものではなく、特許請求の範囲に記載された技術的事項の範囲内において種々の変更が可能である。
例えば、第３図に示すように、積層糸２を構成する合成樹脂フィルム２１の外側にコート層２３を設けてもよい。コート層２３の材料としては、例えば、酸化バリウム、光触媒機能を持つ酸化チタン、ケイ素化合物などが挙げられる。
酸化バリウムをコート層２３に使用した場合には、積層糸２のＸ線遮断性を高めることができる。例えば、蒸着皮膜２２が２００ｎｍの厚さの銀で構成され、合成樹脂フィルム２１の上に酸化バリウムからなる５〜２００ミクロン厚コート層を設けた積層糸２を織り込んだ布地はＸ線で造影され得るし、この積層糸２を縦糸、横糸にそれぞれ１インチ間に２０〜３０本打ちこんだ織物は、約６０ｄｂレベルの電磁波を遮断することができる。
酸化チタンをコート層２３に使用した場合には、蒸着被膜２２の抗菌性金属による死菌を光触媒（酸化チタン）によって発生した活性酸素により分解・無毒化することができ、ケイ素化合物をコート層２３に使用した場合には、積層糸２の保温機能を高めることができる。
また、第４図に示すように、蒸着被膜３２と合成樹脂フィルム３１の間に酸化チタン等の顔料からなるコート層３３を設けてもよい。これにより、抗菌性金属の金属色を消し、白衣のような金属色の糸が使用できないような繊維製品に対しても使用できるようになる。
そして、第５図に示すように、蒸着皮膜４２の上に酸化バリウム等からなるコート層４３を設けてもよい。これにより、蒸着皮膜４２を構成する抗菌性金属の使用量を減らしても、同等の電磁波遮断性をうることができ、抗菌性金属が銀の場合には、生産コストを下げることができる。
さらに、積層糸をナイロンウーリィ等と撚り合せて撚糸としたり、積層糸の周囲に綿等の天然繊維やポリエステルなどの合成繊維からなる短繊維を巻きつけて、コアヤーンとしてもよい。これにより、積層糸の膚触りをよくすることができるとともに、染色性を高め、積層糸の利用範囲を拡張することこともできる。
加えて、積層糸は布製品のほかにも、合成樹脂フィルムの厚さを厚くすることによって、トイレ用等のブラシや掃除用モップの材料として使うこともでき、積層糸が含まれた布地をコンクリート壁、天井、床などに貼付したり、塗り込めて、電磁波除去材として使用することもできる。
産業上の利用可能性
この発明にかかる積層糸は、抗菌性金属からなる蒸着被膜の両側面を合成樹脂フィルムによって挟んだサンドイッチ状構造の糸であるため、外観が美しく、高い抗菌性を備え、洗濯を繰り返しても抗菌力が低下せず、高い帯熱防止性、熱遮断性、帯電防止性、電磁波遮断性、柔軟性を示した。
また、合成樹脂フィルムの外側にコート層を設けることによって、光触媒による分解機能、保温機能や電磁波遮断性を付与することもできた。
また、蒸着被膜と合成樹脂フィルムの間に酸化チタン等の顔料からなるのコート層を設けることによって、抗菌性金属の金属色を消して、様々な色を着色することができた。
さらに、蒸着被膜の上にコート層を設けることによって、蒸着皮膜として使用する銀などの抗菌性金属の使用量を低減することができ、より安価に積層糸を製造することもできた。
加えて、積層糸の周囲に綿短繊維などを巻きつけたコアヤーンとすることによって，積層糸の膚触りをよくすることができるとともに、染色性を高め、積層糸の利用範囲を拡張することこともできた。
【図面の簡単な説明】
第１図は、積層糸の構造を模式的に示した図である。また、第２図は、帯熱防止機能試験の結果を示すグラフである。さらに、第３図、第４図、第５図は、他の積層糸の構造を模式的に示した図である。TECHNICAL FIELD This invention is excellent in various properties such as laminated yarn having a laminated structure, in particular, aesthetic properties, antibacterial properties, washing resistance, anti-heat properties, heat shielding properties, antistatic properties, flexibility, electromagnetic wave shielding properties, etc. Related to laminated yarn.
Background Art In recent years, products with antibacterial properties have been demanded due to the development of hygiene concepts, and not only medical gauze and bandages but also clothes and cloths with antibacterial properties are required. It is getting to be. These antibacterial gauze and the like are made of antibacterial yarn having antibacterial properties as a material thereof.
As such antibacterial yarn, conventionally, an ultrafine metal yarn obtained by elongated silver or copper, a plated yarn obtained by plating silver or copper on the surface of a yarn such as a synthetic fiber, or an antibacterial agent is kneaded or applied. Antibacterial agent-containing yarns are used.
In addition, various antistatic fiber products have been used from the viewpoint of reducing the discomfort of the wearer due to static electricity and preventing the electrostatic breakdown of electronic products due to static electricity. Those containing carbon fiber yarns or those treated with chemicals at the stage of yarn production or dyeing are used.
Furthermore, in the medical field, when performing surgery, the gauze is wrapped around the suture part in the body, the affected part is closed, the gauze is taken out after a certain period of time, the amount of bleeding from the suture part is measured, and the progress after the surgery is measured. It is being investigated. As such a gauze, in order to make it easy to find the arrangement place, a gauze containing a vinyl chloride thread or an ultrafine metal thread that blocks X-rays is used.
In addition, in order to reduce discomfort due to temperature changes, clothes that have improved the cooling effect due to the heat of vaporization when sweat evaporates, clothes that have a heat generation function using evaporation of moisture such as sweat, and heating wires are woven Clothes are used.
However, when these conventional fine metal yarns, carbon fibers, etc. are used for textile products and various properties such as antibacterial properties are to be given to the textile products, there are the following problems.
First, the surface of ultra-fine metal yarns and plated yarns is oxidized and blackened due to aging or bleaching agents, so when they are used in textiles, the appearance of the textiles becomes worse or the antibacterial properties are reduced. Then there was a problem. In addition, since the metal parts of these ultrafine metal threads and plated threads can be easily heated by infrared rays or the like, there is a problem that low-temperature burns are caused when, for example, infrared heat treatment is carried out by wearing fiber products containing these as materials. there were.
Next, the antibacterial agent-containing yarn has a problem that since the antibacterial agent is eluted by washing, the antibacterial property is lowered and the antibacterial property is lost in a short period of time when washing is repeated.
In addition, carbon fiber yarn, which is one of the antistatic fibers, is a black yarn, so there is a problem that the products that can be used are limited from the point of view of the product, and treatment with chemicals at the stage of yarn production and dyeing However, there was a problem that the anti-static property was lost by repeating washing.
In addition, gauze made of vinyl chloride yarn or ultrafine metal yarn contributes to X-ray contrast, but has a problem in the original function of gauze, which is a fiber product lacking in toxicity, texture and flexibility. Furthermore, clothes that have improved the cooling effect due to the heat of vaporization when sweat evaporates have a certain temperature control function and heat insulation, but only have either a cooling or heating function. And its use was also limited.
In addition, it is difficult to create a textile product with multiple characteristics such as antibacterial properties, antistatic properties, anti-heat properties, flexibility, electromagnetic wave shielding properties, and product aesthetics even when these multiple yarns are combined. It was.
Therefore, the present invention provides a laminated yarn that has no antibacterial activity even after repeated washing, has excellent heat resistance, heat shielding properties, antistatic properties, flexibility, electromagnetic wave shielding properties, and the like, and has an excellent aesthetic appearance. This is the issue.
Disclosure of the invention, that is, the laminated yarn according to the present invention is to deposit an antibacterial metal on a synthetic resin film to form a vapor-deposited film, and bond the formed synthetic resin films to each other so that the vapor-deposited film is inside, It is characterized in that it is formed by cutting a laminated body that is bonded to form a sandwich-like structure in the longitudinal direction.
In addition, a coating layer may be provided on the surface opposite to the surface on which the vapor-deposited coating of the synthetic resin film is formed, and the coating layer may be provided between the synthetic resin film and the vapor-deposited coating or on the vapor-deposited coating. A layer may be provided.
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram schematically showing the structure of a laminated yarn 1 according to the present invention. As shown in this figure, the laminated yarn 1 has a vapor-deposited coating 12 made of an antibacterial metal by a synthetic resin film 11. It is a sandwich-like structure thread that is sandwiched and formed by the following procedure.
First, an antibacterial metal is vapor-deposited on the synthetic resin film 11 by a vacuum vapor deposition method, an ion vapor deposition method, or the like to form a vapor deposition coating 12. Next, a laminate having a sandwich structure in which the synthetic resin films 11 on which the vapor-deposited film 12 is formed is bonded to each other with an adhesive so that the vapor-deposited film is inside, and an antibacterial metal is sandwiched between the synthetic resin films. To manufacture. Finally, the laminated body 1 is cut in the longitudinal direction to complete the laminated yarn 1.
Here, the synthetic resin film is a film made of polyester, nylon, polyethylene, polypropylene or the like, and its thickness is about 4 to 50 microns, and preferably about 4 to 12 microns.
In addition, the metal that forms the coating is an antibacterial metal that can exchange ions, such as silver, copper, and zinc. Among them, rust is not easily generated, and the use of silver is optimal because of its high antibacterial performance. is there. The thickness of the vapor-deposited coating 12 is about 20 to 100 nm, and is preferably about 50 to 100 nm from the viewpoint of function security and product cost. However, when the thickness is 700 nm or more, from infrared rays to X-rays without providing a coating layer. Can block a wide range of electromagnetic waves.
Furthermore, as the adhesive, polyurethane adhesive, polyester adhesive, and acrylic adhesive are conceivable, but considering the safety of textile products that require low formalin properties, polyurethane or polyester adhesive Agents are preferred.
Thus, the laminated yarn 1 is a yarn having a sandwich-like structure in which the vapor-deposited coating 12 made of an antibacterial metal is sandwiched between the synthetic resin films 11, and is a yarn having an antibacterial metal color.
In addition, as a width | variety which cut | disconnects a laminated body in the vertical direction, it is about 0.1-1.0 mm, and when considering from consistency of various characteristics, such as aesthetics, anti-electricity resistance, and heat insulation, 0.15-0.226 mm is desirable.
As described above, the side surface of the vapor-deposited film 12 is exposed to the outside, so that it oxidizes and chlorinates, but it rubs each other with adjacent fibers, and the oxidized portion may be removed. I can't see it. Moreover, since parts other than the side surface of the vapor deposition coating 12 are protected by the synthetic resin film 11, they are not oxidized or salified. Therefore, even if washing is performed repeatedly or a bleaching agent is used, the antibacterial power does not decrease, and the vapor-deposited coating 12 is not blackened, so that the appearance of the textile product is not deteriorated.
Further, even when heat is applied from the outside, most of the metal vapor-deposited coating 12 is covered with the synthetic resin film, so that the temperature of the laminated yarn 1 does not rise rapidly and causes low-temperature burns. Even if static electricity is generated in the woven clothes or the like, the static electricity is transferred to the outside through the vapor deposition coating 12, so that it is difficult to charge the static electricity.
Furthermore, since a wide range of electromagnetic waves from infrared rays to X-rays can be blocked by the metal forming the vapor deposition film, it has high electromagnetic wave blocking properties and heat blocking properties, and is based on a synthetic resin film, which is high. Has flexibility.
Next, the laminated yarn according to the present invention is manufactured and subjected to various tests, and the present invention is described in more detail.
"Experiment 1"
(1) Production of laminated yarn Pure silver is vapor-deposited on a 12 micron thick polyester film (manufactured by Toyobo Co., Ltd.) by an ion vapor deposition method to form a vapor-deposited film having a thickness of 50 nm. Next, the polyester film having the vapor-deposited film is bonded to each other with a polyester-based adhesive so that the vapor-deposited film is on the inside, thereby producing a laminate having a sandwich structure. Finally, the laminate was longitudinally cut into a width of 226 microns to obtain a laminated yarn, which was subjected to the following various tests.
(2) Antibacterial test An antibacterial test was conducted by a shake flask method using a towel fabric in which a laminated yarn was woven into the ground yarn at intervals of 6 mm. In addition, Klebsiella pneumoniae was used as a test bacterium, and an unprocessed cloth (made of nylon) was used as an experimental control. The results are shown in Table 1.

Next, an antibacterial test was conducted by a shake flask method using a toe portion of a sock in which laminated yarn was knitted at intervals of about 1 mm. In addition, Klebsiella pneumoniae was used as a test bacterium, and an unprocessed cloth (made of nylon) was used as an experimental control. The results are shown in Table 2.

Furthermore, an antibacterial test was performed by the SEK bacteria count method using pantyhose knitted with laminated yarn at intervals of 2 mm. In addition, ringworm bacteria were used as test bacteria, and unprocessed cloth (made of nylon) was used as an experimental control. The results are shown in Table 3.

As is clear from Table 1, Table 2 and Table 3, when the same number of test bacteria are inoculated and the number of remaining bacteria after a certain time is compared, there is a sufficient difference in antibacterial activity between the sample and the experimental control. It was confirmed that the laminated yarn has a sufficient antibacterial effect. Moreover, it was recognized that the antibacterial spectrum of the above-mentioned laminated yarn ranges widely from bacteria (prokaryotes), Klebsiella pneumoniae to fungi (eukaryotes), ringworm.
(3) Washing resistance test After washing a specified number of times a towel fabric in which laminated yarn was woven at intervals of 4 mm, an antibacterial test was conducted by a shake flask method to examine changes in the antibacterial activity due to washing. In addition, Klebsiella pneumoniae was used as a test bacterium. The results are shown in Table 4.

Next, the food wrap cloth in which the laminated yarns were woven at intervals of 5 mm was washed a specified number of times, and then the antibacterial test was conducted by the shake flask method to examine the change in the antibacterial power by washing. In addition, E. coli was used as a test bacterium. The results are shown in Table 5.

Furthermore, after washing the food wrap cloth in which the laminated yarns were woven at intervals of 5 mm, the antibacterial property test was conducted by the SEK unification test method, and the change of the antibacterial activity due to washing was examined. In addition, Escherichia coli O-157 was used as a test bacterium, and cotton gauze was used as an experimental control. The results are shown in Table 6.

As apparent from Table 4, Table 5 and Table 6, it was found that the antibacterial activity of the laminated yarn did not decrease even when washing was repeated, but rather the impurities were eliminated and the antibacterial activity was improved as washing was repeated.
(4) Chlorine bleach resistance test About 10 grams of laminated yarn was bundled and the color change after bleaching a specified number of times was observed. The bleaching solution was obtained by adding 300 ml of distilled water to 12 ml of kitchen bleach and changing the temperature to see the difference depending on the temperature. The results are shown in Table 7.

As is clear from Table 7, it was confirmed that even if the bundled laminated yarn was bleached, especially when it was bleached under severe conditions of 50 ° C. and 30 minutes, the laminated yarn was not blackened.
(5) Test for preventing heat from heating A T-shirt was made with a tengu made of knitted laminated yarn at an interval of 5 mm, and the T-shirt was heated with an infrared lamp from about 20 cm, and the temperature change in the surface and the fabric was examined. The results are shown in the graph of FIG. As an experimental control, a T-shirt containing no laminated yarn was used.
As is clear from FIG. 2, it was found that even when the laminated yarn was woven, the heat resistance was not lowered and the temperature increased only to the same extent as the experimental control.
(6) Heat insulation test A core yarn of 30th single yarn is produced with a cotton yarn covered with a short cotton fiber as the core yarn, and the core yarn is used as warp yarn or weft yarn, 20 pieces per inch (each A) A coated fabric containing 12 pieces (B) and 7 pieces (C) was produced. And the light was irradiated from the front side of the coated fabric (blank) not including the coated fabric (A), (B), (C) and the laminated yarn, and the temperature difference before and after the fabric was measured. Table 8 shows the time-dependent change in temperature difference before and after the dough, and Table 9 shows the measured temperature of each dough after irradiation for 5 minutes.

In Table 8 and Table 9, when comparing the temperature difference before and after the dough 5 minutes after light irradiation, the temperature difference of (A) containing 20 core yarns per inch is about 2-3 degrees larger than the blank. Recognize. From this, it was found that the heat shielding property was improved by weaving the core yarn containing the laminated yarn.
(7) Antistatic property test Using the T-shirt produced in (5), an antistatic function test was conducted according to the method described in JIS 1094-5. The measurement conditions are a temperature of 20 ° C. and a humidity of 20%. The results are shown in Table 10. As an experimental control, a T-shirt containing no laminated yarn was used.

As shown in Table 10, it was found that the electrostatic capacity and voltage accumulated in the T-shirt were reduced, and the antistatic function was improved by weaving the laminated yarn.
"Experimental example 2"
(8) Manufacture of twisted yarn A 50 nm thick metal film made of pure silver (purity 99.99%, manufactured by Mitsubishi Materials) was deposited on a 9 micron thick polyester film (manufactured by Toray) by vacuum deposition technology. The formed synthetic resin film was bonded with a polyester-based adhesive (manufactured by Sumitomo 3M) so that the vapor-deposited coatings were inside, and cut into a width of 150 microns to produce a laminated yarn. Then, a 30-denier / 5-filament polyester yarn was twisted into the laminated yarn one by one in the left and right direction to produce a twisted yarn.
(9) Manufacture of men's suit lining fabric 50 denier / filament polyester yarn (manufactured by Toray) warped so that 150 warps can be inserted in 1 inch, 75 denier / 72 filament polyester yarn (Toray) Weaving 30 weft yarns made in (8) to a total of 70 yarns per inch and weaving them in a twill weave, refining them, and dyeing them in blue with disperse dyes. Manufactured. The twisted yarn in the fabric for lining the men's suit had a blue metallic color, and the interval between the twisted yarns was about 10 mm.
(10) Antistatic test An experimental control using a 75 denier / 72 filament polyester yarn (made by Toray) instead of a twisted yarn was produced in the same manner as in (9), under an environment of temperature 20 ° C. and humidity 20%. The antistatic property test was conducted by measuring the charged voltage at the moment when the friction was stopped by rubbing with a nylon and acrylic fabric for 1 minute. As a result, the withstand voltage of the experimental control exceeded 4000 volts, while the charging voltage of the fabric for lining the gentleman suit manufactured in (9) was 300 volts or less.
"Experiment 3"
(11) Manufacture of men's suit lining fabric (8) Same as (9) except that the number of twisted yarns produced in (8) is 10 at an even pitch and dyed black with disperse dye The fabric for lining a gentleman's suit was manufactured by the method described above. The twisted yarn in the men's suit lining fabric had a black metallic color, and the interval between the twisted yarns was about 2.5 mm.
(12) Thermal barrier test An experimental control using polyester yarn of 75 denier / 72 filaments (manufactured by Toray) instead of twisted yarn was produced in the same manner as (11), and the following (a) to (d) A thermal barrier test was performed according to the procedure. First, (a) a light (one national lamp: two PRF-500wWBs) is installed in one direction, (b) 30 cm away from the light and at a right angle to the light traveling direction, The experiment control and the men's suit lining fabric produced in (11) were each combined with two pieces of brown clothing, then placed in a screen, (c) irradiated with light for 5 minutes, (d) subject to experiment ( The temperature difference between the light side and the opposite side of the men's suit lining fabric produced in 11) was measured.
As a result, the temperature on the light side of the experimental control was 44.8 ° C., and the temperature on the opposite side of the light was 29.1 ° C. Further, the temperature on the side of the gentleman lining fabric light manufactured in (11) was 46.1 ° C., and the temperature on the opposite side of the light was 27.2 ° C. Therefore, it was found that the gentleman suit lining fabric produced in (11) cut off heat of 1.3 ° C. on the light side (heat source side) and 1.9 ° C. on the opposite side as compared to the experimental control.
"Experimental example 4"
(13) Manufacture of coat fabric The laminated yarn produced in (1) was covered with cotton fibers to produce a core yarn with 30 cotton counts. Next, weft yarns that are warped so that the number of 30th cotton yarn per inch is 150 are combined with the weft yarn in a ratio of 5 for 30 core cotton to one core yarn. A gabardine fabric was produced by weaving at the same interval so as to be 80 per hit, refined, and dyed black with reactive dye and disperse dye to produce a coating fabric.
(14) Thermal barrier test Except that only 30th cotton yarn was used as the weft, the thermal barrier test was performed in the same manner as in (12) using the coating fabric produced in the same manner as in (13) as the test subject. Went.
As a result, the temperature on the light side of the experimental control was 40.5 ° C., and the temperature on the opposite side of the light was 28.2 ° C. Further, the temperature on the light side of the fabric for lining the gentleman suit manufactured in (13) was 43.3 ° C., and the temperature on the opposite side was 26 ° C. Therefore, it was found that the coating fabric produced in (13) blocked heat at 2.8 ° C. on the light side (heat source side) and 2.2 ° C. on the opposite side compared to the experimental control.
“Experimental Example 5”
(15) Manufacture of shirts Weft yarn, which is obtained by combining 40 cotton yarns with 130 warps per inch and 4 40 cotton yarns with the ratio of one core yarn used in (13), is used between 1 inch. A shirt was produced by exposing 85 broad cloths.
(16) Thermal barrier test The same person wears the shirt manufactured in (15) and the experimental control shirt after walking for 5 minutes in an environment with an air temperature of 18 ° C. and a humidity of 50%. Was kept for 3 minutes, and the difference in skin surface temperature was measured with a thermograph. The shirt for the experiment was manufactured in the same manner as (15) except that 40th cotton yarn was used instead of the core yarn.
As a result, it was found that the shirt manufactured in (15) was superior to the experimental control by 3.2 ° C. in heat retention.
"Experimental example 6"
(17) Production of lace curtain fabric 90 yarns of 150 denier polyester between 1 inch and 10 twisted yarns (equal to those produced in (8)) inserted evenly between them as warp yarns, A fabric for lace curtains was produced by knitting and refining with a Raschel machine, a type of warp knitting machine.
(18) Thermal barrier test The thermal barrier test was conducted in the same manner as (12) except that a standard white cloth (cotton cloth) was used instead of the brown fabric. As an experimental control, a lace curtain fabric produced in the same manner as in (17) was used except that polyester 150 denier yarn was used instead of twisted yarn.
As a result, the temperature on the light side of the experimental control was 41.7 ° C., and the temperature on the opposite side of the light was 25.8 ° C. The temperature on the light side of the lace curtain fabric produced in (17) was 43.8 ° C., and the temperature on the opposite side of the light was 26.3 ° C. Accordingly, it was found that the lace curtain fabric produced in (17) was 2.1 ° C. higher on the light side.
As described above, the laminated yarn 1 and the fabric including the laminated yarn 1 have excellent antibacterial properties, washing resistance, heat resistance, heat shielding properties, antistatic properties, and the like, and also have excellent aesthetics. Yes.
In addition, this invention is not limited to the said embodiment and Example, A various change is possible within the range of the technical matter described in the claim.
For example, as shown in FIG. 3, a coat layer 23 may be provided outside the synthetic resin film 21 constituting the laminated yarn 2. Examples of the material for the coat layer 23 include barium oxide, titanium oxide having a photocatalytic function, and a silicon compound.
When barium oxide is used for the coat layer 23, the X-ray shielding property of the laminated yarn 2 can be improved. For example, a fabric in which the deposited film 2 is made of silver having a thickness of 200 nm and a laminated yarn 2 in which a 5-200 micron thick coat layer made of barium oxide is provided on a synthetic resin film 21 is imaged with X-rays. In addition, a woven fabric in which 20-30 yarns are put into the warp yarn and the weft yarn for 1 inch each can cut off the electromagnetic wave of about 60 db level.
When titanium oxide is used for the coating layer 23, dead bacteria due to the antibacterial metal of the vapor deposition coating 22 can be decomposed and detoxified by active oxygen generated by the photocatalyst (titanium oxide), and the silicon compound is coated with the coating layer 23. When used for the above, the heat retaining function of the laminated yarn 2 can be enhanced.
Further, as shown in FIG. 4, a coat layer 33 made of a pigment such as titanium oxide may be provided between the vapor deposition coating 32 and the synthetic resin film 31. As a result, the metal color of the antibacterial metal is erased, and it becomes possible to use it for a textile product in which a metal color thread such as a white coat cannot be used.
And as shown in FIG. 5, you may provide the coating layer 43 which consists of barium oxide etc. on the vapor deposition film 42. As shown in FIG. Thereby, even if it reduces the usage-amount of the antibacterial metal which comprises the vapor deposition film 42, the equivalent electromagnetic wave shielding property can be obtained, and when an antibacterial metal is silver, production cost can be reduced.
Further, the laminated yarn may be twisted with nylon wooly or the like to form a twisted yarn, or a natural fiber such as cotton or a short fiber made of synthetic fiber such as polyester may be wound around the laminated yarn to form a core yarn. Thereby, the touch of the laminated yarn can be improved, the dyeability can be improved, and the utilization range of the laminated yarn can be expanded.
In addition, the laminated yarn can be used as a material for brushes and cleaning mops for toilets, etc. by increasing the thickness of the synthetic resin film in addition to cloth products. It can be affixed to concrete walls, ceilings, floors, etc., and can also be used as an electromagnetic wave removing material.
INDUSTRIAL APPLICABILITY The laminated yarn according to the present invention is a sandwich-like structure yarn in which both sides of a vapor-deposited coating made of an antibacterial metal are sandwiched between synthetic resin films, so that the appearance is beautiful and has high antibacterial properties. The antibacterial activity did not decrease even after repeated washing, and exhibited high heat-preventing properties, heat-blocking properties, antistatic properties, electromagnetic wave-blocking properties, and flexibility.
Further, by providing a coat layer on the outside of the synthetic resin film, it was possible to impart a decomposition function by a photocatalyst, a heat retention function, and an electromagnetic wave shielding property.
Moreover, by providing a coating layer made of a pigment such as titanium oxide between the vapor-deposited film and the synthetic resin film, the metal color of the antibacterial metal can be erased and various colors can be colored.
Furthermore, by providing a coat layer on the vapor deposition film, the amount of antibacterial metal such as silver used as the vapor deposition film can be reduced, and a laminated yarn can be produced at a lower cost.
In addition, it is possible to improve the silkiness of the laminated yarn by using a core yarn in which cotton short fibers are wound around the laminated yarn, to enhance the dyeability and to expand the use range of the laminated yarn. I was able to.
[Brief description of the drawings]
FIG. 1 is a diagram schematically showing the structure of a laminated yarn. Moreover, FIG. 2 is a graph which shows the result of a heating prevention function test. Furthermore, FIG. 3, FIG. 4, and FIG. 5 are diagrams schematically showing the structure of other laminated yarns.

Claims (12)

Silver is deposited on a synthetic resin film having a thickness of 4 to 12 microns to form a vapor-deposited film having a thickness of 50 to 100 nm. The formed synthetic resin films are bonded to each other so that the vapor-deposited film is inside. A laminated yarn formed by cutting a laminate having a sandwich-like structure into a length of 0.15 to 0.226 mm in the longitudinal direction and having not only antibacterial properties but also heat shielding properties . Silver is deposited on a synthetic resin film having a thickness of 4 to 12 microns to form a vapor-deposited film having a thickness of 200 nm. After forming a coating layer having a thickness of 5 to 200 microns with barium oxide on the outermost layer of the layered structure, the layered structure is cut into a width of 0.15 to 0.226 mm in the longitudinal direction. A laminated yarn characterized by having not only antibacterial properties but also heat shielding properties and X-ray shielding properties . Pigment made of titanium oxide as a raw material between a deposited synthetic resin film and the deposited film by depositing silver on a synthetic resin film having a thickness of 4 to 12 microns to form a deposited film having a thickness of 50 to 100 nm. A coating layer is provided, and the synthetic resin films are bonded together so that the vapor-deposited films are inside, and the laminated body that is bonded to form a sandwich-like structure is cut into a width of 0.15 to 0.226 mm in the longitudinal direction. A laminated yarn characterized by having not only antibacterial properties but also heat shielding properties . Silver is vapor-deposited on a synthetic resin film having a thickness of 4 to 12 microns to form a vapor-deposited film having a thickness of 50 to 100 nm, a coating layer made of barium oxide is provided on the vapor-deposited film, and the synthetic resin films are bonded to each other. Adhesive so that they are inside each other, formed by cutting the laminate that has been bonded into a sandwich-like structure into a width of 0.15 to 0.226 mm in the longitudinal direction, not only antibacterial but also heat shielding A laminated yarn characterized by having both properties and electromagnetic shielding properties . A core yarn obtained by winding short fibers made of natural fibers or synthetic fibers around the laminated yarn according to claim 1, and having not only antibacterial properties but also heat shielding properties . A core yarn obtained by winding a short fiber made of natural fiber or synthetic fiber around the laminated yarn according to claim 2, and having not only antibacterial properties but also heat shielding properties and X-ray shielding properties . A core yarn obtained by winding a short fiber made of natural fiber or synthetic fiber around the laminated yarn according to claim 3, and having not only antibacterial properties but also heat shielding properties . A core yarn obtained by winding short fibers made of natural fibers or synthetic fibers around the laminated yarn according to claim 4, and having not only antibacterial properties but also heat shielding properties and electromagnetic wave shielding properties . A twisted yarn obtained by twisting a polyester yarn to the laminated yarn according to claim 1 and having not only antibacterial properties but also heat shielding properties . A twisted yarn obtained by twisting a polyester yarn to the laminated yarn according to claim 2 and having not only antibacterial properties but also heat shielding properties and X-ray shielding properties . A twisted yarn obtained by twisting a polyester yarn to the laminated yarn according to claim 3 and having not only antibacterial properties but also heat shielding properties . A twisted yarn obtained by twisting a polyester yarn on the laminated yarn according to claim 4 and having not only antibacterial properties but also heat shielding properties and electromagnetic wave shielding properties .

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