JPH0821640A - Electric carpet - Google Patents
Electric carpetInfo
- Publication number
- JPH0821640A JPH0821640A JP15601394A JP15601394A JPH0821640A JP H0821640 A JPH0821640 A JP H0821640A JP 15601394 A JP15601394 A JP 15601394A JP 15601394 A JP15601394 A JP 15601394A JP H0821640 A JPH0821640 A JP H0821640A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- heat
- temperature
- fibers
- electric carpet
- 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.)
- Granted
Links
Landscapes
- Surface Heating Bodies (AREA)
- Central Heating Systems (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は電気カーペットの改良に
関する。さらに詳しくは防融性や防炎性等の熱特性が優
れ、且つ構造が簡単な電気カーペットに関するものであ
る。FIELD OF THE INVENTION This invention relates to improvements in electric carpets. More specifically, the present invention relates to an electric carpet having excellent thermal properties such as melting resistance and flame resistance and having a simple structure.
【０００２】[0002]
【従来の技術】近年、生活様式の変化に伴い電気カーペ
ットの普及はめざましいものがある。この電気カーぺッ
トは安全性の面から発熱体構造と温度制御方法が、また
加工性や風合いの面からは発熱体と温度検出端を被覆す
る繊維層の構成に改良が加えられてきた。後者について
は、例えば実開平３−６２１５号公報は底面にパッキン
グ層をもつ上部繊維層と、下部フェルト層とを内部発熱
体および温度検出部材を含み、かつ融点が９０〜１５０
℃で、上部繊維層の繊維融点に比し５０℃以上低い融点
差をもつホットメルト不織布を挟着してホットメルト不
織布の融点以上で上部繊維層の繊維融点未満の温度で加
熱溶融し複合一体化した電気カーペットを提案してい
る。2. Description of the Related Art In recent years, electric carpets have been remarkably spread due to changes in lifestyle. In this electric carpet, the heating element structure and temperature control method have been improved from the viewpoint of safety, and the construction of the fiber layer covering the heating element and the temperature detection end has been improved from the viewpoint of workability and texture. . Regarding the latter, for example, Japanese Utility Model Publication No. 3-6215 discloses an upper fiber layer having a packing layer on the bottom surface, a lower felt layer, an internal heating element and a temperature detecting member, and a melting point of 90 to 150.
At 50 ° C, a hot melt nonwoven fabric having a melting point difference of 50 ° C or more lower than the fiber melting point of the upper fiber layer is sandwiched and heated and melted at a temperature higher than the melting point of the hot melt nonwoven fabric and lower than the fiber melting point of the upper fiber layer to form a composite integral We are proposing a converted electric carpet.
【０００３】[0003]
【発明が解決しようとする課題】電気カーペットは保温
性や風合いに加えて火災に対する安全性が要求される。
ところが前記した熱接着性繊維で発熱体と温度検出部材
及び被覆繊維層を複合一体化した電気カーペットは熱接
着性繊維の融点が９０〜１５０℃であり、また上部繊維
層に熱溶融性の合成繊維を用いるため熱特性は低いもの
である。一般的に上部繊維層が編織物や不織布等で、防
炎性や防炎性を有しないか又は防炎加工や防融加工が施
されていない電気カーペット構成体にあっては、（１）
該電気カーペット内に埋設された発熱体が異常昇温した
場合や（２）外部の高温熱源、例えば、タバコやアイロ
ンまたは各種暖房器具等と直接又は間接的に接触した場
合に生じるであろう火災に対する安全性に欠ける。この
対策の一つとして熱特性及び絶縁性に優れたパッキン層
と通常有機合成繊維層を交互に重畳すれば係る問題点の
ある程度の解決は可能である。しかし、電気カーペット
の構成が複雑化するため加工性が犠牲になり一般には採
用し難いのが現状である。このため、防融性や防炎性等
の熱特性に優れ、且つ構造が簡単で加工性の良好な電気
カーペットの出現が望まれていた。[Problems to be Solved by the Invention] In addition to heat retention and texture, electric carpets are required to have safety against fire.
However, in the electric carpet in which the heating element, the temperature detecting member, and the coating fiber layer are combined and integrated with the above-mentioned heat-adhesive fiber, the melting point of the heat-adhesive fiber is 90 to 150 ° C., and the upper fiber layer has a heat-meltable composition. Since the fiber is used, the thermal property is low. Generally, in an electric carpet composition having an upper fiber layer made of a knitted woven fabric, a non-woven fabric, or the like, which does not have flameproofness or flameproofness, or is not flameproofed or meltproofed, (1)
Fire that may occur when the heating element embedded in the electric carpet has an abnormal temperature rise, or (2) when it comes into direct or indirect contact with an external high-temperature heat source, such as a cigarette, an iron, or various heating appliances. Lack of safety against. As one of the countermeasures, it is possible to solve the problem to some extent by alternately stacking a packing layer having excellent thermal characteristics and insulating properties and a normal organic synthetic fiber layer. However, since the structure of the electric carpet is complicated, the workability is sacrificed and it is generally difficult to adopt. Therefore, the advent of an electric carpet having excellent thermal properties such as melting resistance and flame resistance, a simple structure, and good workability has been desired.
【０００４】[0004]
【課題を解決するための手段】上記課題を解決すること
ができた本発明の電気カーペットとは発熱体と温度検出
端を融点が２００℃以上の熱可塑性重合体からなる熱接
着性繊維層で挟着し、さらに該熱接着性繊維層の両外側
面を４５０℃以上の分解温度を有する非溶融性の有機合
成繊維の編織物又はウエブで重畳してなることを主旨と
する。The electric carpet of the present invention which has been able to solve the above-mentioned problems is a heat-adhesive fiber layer made of a thermoplastic polymer having a melting point of 200 ° C. or more at a heating element and a temperature detecting end. The main purpose is to sandwich and to further overlap both outer surfaces of the heat-adhesive fiber layer with a knitted fabric or web of non-melting organic synthetic fibers having a decomposition temperature of 450 ° C. or higher.
【０００５】本発明の電気カーペツトの基本構造を図１
に例示した。同図において電気カーペツト構成体は発熱
体１と温度検出端２は熱可塑性重合体から成る熱接着性
繊維３、３’で挟着され、該熱接着性繊維層の上下両面
に非溶融性の熱特性に優れた繊維層４、４’が重畳され
たものである。該電気カーペット構成体において発熱体
１及び温度検出端２を繊維層内３、３’に位置固定する
ために熱接着性繊維を用いることは公知であり、従来は
複合一体化工程における加工性の観点から低融点熱接着
性繊維が使用されてきた。しかし、電気カーペット構成
体全体の熱特性を改善するには高い融点の熱接着性繊維
を用いることが好ましく、本発明の電気カーペット構成
体に用いる熱接着性繊維は２００℃以上の融点を有する
ことが必要である。融点が２００℃未満の熱接着性繊維
を用いると比較的低い温度で熱接着が可能であり加工性
に利点はあるが、発熱体の異常昇温又は外部より何等か
のトラブルで電気カーペットが異常に高い温度に加熱さ
れた場合、熱接着性繊維の再溶融と粘度低下のため被覆
斑を生じ、発熱体及び温度検出端の繊層内で位置固定が
不安定となり、また熱伝達も不均一になる。一方、熱接
着繊維の融点が高くなるほど何等かのトラブルで電気カ
ーペットが高温に加熱された場合、その温度にもよるが
熱接着性繊維の再溶融と粘度低下による障害の程度は小
さくなる。なお、加熱溶融による複合一体化の加工性や
接着性等を勘案して熱接着繊維の種類を選択することが
肝要である。具体的に利用できる熱接着性繊維としては
ポリエステル、変性ポリエステル、ナイロン６，ナイロ
ン６６、変性ナイロン、ポリブチレンテレフタレート、
ポリフェニレンサルファイド等の熱可塑性重合体から成
る繊維が挙げられる。FIG. 1 shows the basic structure of the electric carpet of the present invention.
It was illustrated in. In the figure, the electric carpet structure has a heating element 1 and a temperature detecting end 2 which are sandwiched by thermo-adhesive fibers 3 and 3'made of a thermoplastic polymer, and the non-melting property is provided on both upper and lower surfaces of the thermo-adhesive fiber layer. The fiber layers 4 and 4'having excellent thermal characteristics are superposed. It is known to use a heat-adhesive fiber for fixing the heating element 1 and the temperature detecting end 2 in the fiber layers 3 and 3'in the electric carpet structure, and it is conventionally known that the heat-adhesive fiber is used in the composite integration process. From the point of view, low melting point heat-bondable fibers have been used. However, in order to improve the thermal properties of the entire electric carpet structure, it is preferable to use a heat-melting fiber having a high melting point, and the heat-bonding fiber used for the electric carpet structure of the present invention has a melting point of 200 ° C. or higher. is necessary. The use of heat-adhesive fibers having a melting point of less than 200 ° C enables heat-bonding at a relatively low temperature and has an advantage in workability, but the electric carpet is abnormal due to abnormal heating of the heating element or some trouble from the outside. When heated to a very high temperature, re-melting of the heat-adhesive fiber and a decrease in viscosity cause coating unevenness, which makes position fixing unstable in the heating element and the fiber layer at the temperature detection end, and also causes uneven heat transfer. become. On the other hand, when the electric carpet is heated to a high temperature due to some trouble as the melting point of the heat-adhesive fiber becomes higher, the degree of trouble due to remelting of the heat-adhesive fiber and lowering of the viscosity decreases depending on the temperature. It is important to select the type of heat-bonding fiber in consideration of the workability and adhesiveness of composite integration by heating and melting. Specific heat-adhesive fibers that can be used are polyester, modified polyester, nylon 6, nylon 66, modified nylon, polybutylene terephthalate,
A fiber made of a thermoplastic polymer such as polyphenylene sulfide may be mentioned.
【０００６】また電気カーペットが発熱体の異常昇温又
外部から何等かのトラブルで高温に加熱された場合、熱
接着性繊維の再溶融と粘度低下による性能低下を抑制す
る上で前記熱可塑性重合体から成る熱接着性繊維に４５
０℃以上の熱分解温度を持つ非溶融性の有機合成繊維を
混合してもよく、混合する非溶融性の有機合成繊維の比
率は両繊維の種類にも依るが５０％重量未満とするのが
好ましい。なお、従来は発熱体に近接して繊維層、例え
ば通常のスパンボンド不織布が積層されているが、熱特
性に優れた繊維を混合することにより該繊維層の積層が
不要となり加工性が改善出来る。具体的に４５０℃以上
の熱分解温度を持つ非溶融性の有機合成繊維としてパラ
系アラミド重合体やポリベンザゾール重合体から成る繊
維等が挙げられるFurther, when the electric carpet is heated to a high temperature due to an abnormal temperature rise of the heating element or some trouble from the outside, the thermoplastic resin is used in order to prevent re-melting of the heat-adhesive fiber and a decrease in performance due to a decrease in viscosity. 45 for heat-bondable fibers made of coalesced
Non-melting organic synthetic fibers having a thermal decomposition temperature of 0 ° C. or higher may be mixed, and the ratio of the non-melting organic synthetic fibers to be mixed is less than 50% by weight, depending on the types of both fibers. Is preferred. Conventionally, a fiber layer, for example, a normal spunbonded non-woven fabric is laminated in the vicinity of the heating element, but by mixing fibers having excellent thermal characteristics, the lamination of the fiber layer is not necessary and the workability can be improved. . Specific examples of the non-melting organic synthetic fibers having a thermal decomposition temperature of 450 ° C. or higher include fibers made of para-aramid polymer and polybenzazole polymer.
【０００７】発熱体及び温度検出端を挟着する熱接着性
繊維又は熱接着性繊維と非溶融性の有機合成繊維の混合
物の形態に特に限定はなく加工費用と取扱い易さの点か
らウエブを積層した不織布が好ましく用いられる。The form of the heat-adhesive fiber or the mixture of the heat-adhesive fiber and the non-melting organic synthetic fiber for sandwiching the heating element and the temperature detecting end is not particularly limited, and the web is used from the viewpoint of processing cost and handleability. A laminated non-woven fabric is preferably used.
【０００８】本発明の電気カーペット構成体に用いる熱
接着繊維の単糸繊度はウエブを積層して不織布に加工で
きる範囲にあれば特に制限はないが繊維を溶融させて発
熱体及び温度検出端を均一に被覆し、また後述する熱接
着性繊維層の両外側面に重畳した上部繊維層及び下部繊
維層に均一に浸透させて一体化を図るには単糸繊度は細
い方が好ましい。通常は１〜１０デニールの範囲が使用
される。ウエブを積層して不織布とするには短繊維長は
４０〜１００ｍｍの範囲で適宜選択することができる。The single-filament fineness of the heat-bonded fibers used in the electric carpet structure of the present invention is not particularly limited as long as it can be processed into a nonwoven fabric by laminating webs, but the fibers are melted to form a heating element and a temperature detecting end. It is preferable that the single yarn fineness is small in order to coat uniformly and to uniformly permeate into the upper fiber layer and the lower fiber layer which are superposed on both outer surfaces of the heat-adhesive fiber layer, which will be described later, to integrate them. Usually a range of 1 to 10 denier is used. When laminating the webs into a nonwoven fabric, the short fiber length can be appropriately selected within the range of 40 to 100 mm.
【０００９】次に熱接着性繊維層の両外側面にそれぞれ
重畳される上部繊維層４と下部繊維層４’について述べ
る。該上部繊維層及び下部繊維層を構成する繊維材料の
具備すべき要件は非溶融性と防炎性及び高い熱分解開始
温度である。上部繊維層及び下部繊維層を構成する繊維
材料が熱溶融性の場合、複合一体化するに際して前記熱
接着性繊維との融点差の関係から種類の選択幅が狭くな
る。また電気カーペットが外部より何等かのトラブルで
高温に加熱された場合、その融点にもよるが上部繊維層
と下部繊維層の一部及び／又は全部が溶融、又は燃焼す
るおそれがある。上部繊維層及び下部繊維層を構成する
繊維材料の熱分解開始温度は前記の熱接着性繊維の融点
や熱分解温度及び溶融粘度を勘案すると４５０℃以上の
温度が必要である。熱分解温度が４５０℃未満の繊維材
料では本発明の目的の達成が困難になる。なお、係る熱
特性に優れた繊維材料を用いることにより従来使用され
てきたパッキン層が省けて電気カーペット構成が簡略化
できる。Next, the upper fiber layer 4 and the lower fiber layer 4'which are superposed on both outer surfaces of the heat-bondable fiber layer will be described. The requirements for the fiber materials constituting the upper fiber layer and the lower fiber layer are non-melting property, flame resistance, and high thermal decomposition initiation temperature. When the fiber materials forming the upper fiber layer and the lower fiber layer are heat-meltable, the selection range of the types is narrowed due to the melting point difference with the heat-adhesive fiber when the composite is integrated. If the electric carpet is heated to a high temperature from the outside due to some trouble, there is a possibility that part and / or all of the upper fiber layer and the lower fiber layer may be melted or burned, depending on the melting point thereof. The thermal decomposition start temperature of the fiber material forming the upper fiber layer and the lower fiber layer needs to be 450 ° C. or higher in consideration of the melting point, thermal decomposition temperature and melt viscosity of the above-mentioned heat-adhesive fibers. The fiber material having a thermal decomposition temperature of less than 450 ° C. makes it difficult to achieve the object of the present invention. By using the fiber material having excellent thermal characteristics, the packing layer which has been used conventionally can be omitted and the electric carpet structure can be simplified.
【００１０】防炎性や自己消火性があり高温下でも溶融
・収縮することなく炭化する熱特性を具備した繊維材料
としてポリベンザゾール繊維が挙げられる。ポリベンザ
ゾール短繊維の製造方法は以下の通りである。即ち、ポ
リベンザゾール重合体とポリリン酸からなる重合体紡糸
ドープを紡糸口金の細孔部で剪断変形を受けた状態での
溶融粘度が数千から数万ポアズとなる温度に加熱して紡
糸部に供給し、複数個の細孔を有する紡糸細孔が円周状
もしくは格子状に配列された紡糸口金を通して横吹き気
流帯域に紡出される。例えば、メタンスルホン酸中、温
度３０℃で測定した極限粘度が３０ｄｌ／ｇ、ポリベン
ザゾール重合体の濃度が１４重量％の場合の紡糸温度は
１４０℃から１８０℃である。気流帯域中において紡出
糸は１０〜１２０℃に加熱された流速０．１〜１．２ｍ
／秒の気流が直交して吹き当てて該ドープの凝固温度以
下に冷却する。ここで紡出糸条の冷却に要する紡糸口金
面からの距離は主として紡糸口金の単孔当たりのドープ
紡出量と紡糸温度および吹き当てる気流の温度と流速等
によって適宜選択すればよいが、通常、気流帯域長は１
０ｃｍから１００ｃｍが採用できる。該気流帯域を通過
した糸条は引き続いて速度規定ローラー、繊維集束ロー
ラーを介して繊維束をトウ状となし、引き続いて捲縮付
与装置に供給する。次いで切断装置に導入して所定の繊
維長にカットして短繊維とした後、一定速度で移動する
網状体のコンベア上に振りおとされる。短繊維はコンベ
アを移動させながら非溶剤性の液体からなる抽出媒体を
噴射して繊維に残存するポリリン酸濃度が少なくとも
０．５重量％（リン原子濃度に換算値）以下となるよう
に洗浄する。洗浄された短繊維は同じくコンベアを移動
させながら２００℃を越え内温度で水分率が２重量％以
下となるまで加熱・乾燥処理を行う。短繊維を乾燥には
熱風や遠赤外線および高周波加熱等を単独及び／又は複
数手段を組み合わせが利用される。繊維に集束性と平滑
性を付与するために乾燥処理前または乾燥処理後にイン
ラインで該短繊維に油剤処理することが好ましい。油剤
処理の手段は特に制限されず従来公知の方法、例えばミ
スト状で噴霧する方法などが採用できる。このようにし
て洗浄・乾燥・油剤処理したポリベンザゾール短繊維は
５０〜２００ｍ／分の速度でケンス、缶等の収納容器に
振り落とされる。Polybenzazole fiber is a fibrous material having flame resistance and self-extinguishing property, and having thermal characteristics of carbonizing without melting and shrinking even at high temperature. The method for producing the polybenzazole short fiber is as follows. That is, a polymer spinning dope composed of a polybenzazole polymer and polyphosphoric acid is heated to a temperature at which the melt viscosity in the state of being subjected to shear deformation in the pores of the spinneret is from several thousand to tens of thousands of poise, and the spinning portion is then heated. And is spun into a side-blown airflow zone through a spinneret in which spinning pores having a plurality of pores are circumferentially or lattice-arranged. For example, when the intrinsic viscosity measured in methanesulfonic acid at a temperature of 30 ° C. is 30 dl / g and the concentration of the polybenzazole polymer is 14% by weight, the spinning temperature is 140 ° C. to 180 ° C. The spun yarn was heated to 10 to 120 ° C in the air flow zone and the flow rate was 0.1 to 1.2 m.
/ Sec airflow is sprayed at right angles to cool to below the solidification temperature of the dope. Here, the distance from the spinneret surface required for cooling the spun yarn may be appropriately selected mainly depending on the amount of dope spinning per single hole of the spinneret and the spinning temperature, and the temperature and flow velocity of the air stream to be sprayed. , The airflow zone length is 1
0 cm to 100 cm can be adopted. The yarn that has passed through the airflow zone is continuously made into a tow-like fiber bundle through a speed-regulating roller and a fiber-focusing roller, and subsequently supplied to a crimping device. Then, after being introduced into a cutting device and cut into a predetermined fiber length to form short fibers, the fibers are shaken on a mesh-like conveyor that moves at a constant speed. The short fibers are washed while moving the conveyor by spraying an extraction medium composed of a non-solvent liquid so that the concentration of polyphosphoric acid remaining in the fibers is at least 0.5% by weight (value converted to phosphorus atom concentration) or less. . The washed short fibers are heated and dried at a temperature of more than 200 ° C and an internal temperature of 2% by weight or less while moving the conveyor. For drying the short fibers, hot air, far infrared rays, high frequency heating, etc. are used alone and / or a plurality of means are combined. In order to impart sizing property and smoothness to the fibers, it is preferable that the short fibers are treated with an oil agent before or after the drying process. The method for treating the oil agent is not particularly limited, and a conventionally known method, for example, a method of spraying in the form of mist can be adopted. The polybenzazole short fibers thus washed, dried and treated with an oil agent are shaken off at a speed of 50 to 200 m / min into a container such as a can or a can.
【００１１】上部繊維層４と下部繊維層４’は前記の熱
特性に優れた有機重合体の長繊維から成る編織物及び／
又は不織布で構成されるが、加工費用と取扱性及び嵩高
性の点から不織布の形態が好ましく用いられる。不織布
は短繊維をウエブとしこれを針刺処理して不織布に加工
する等の従来公知の何れの方法も採用できる。The upper fiber layer 4 and the lower fiber layer 4'are knitted and woven fabrics composed of long fibers of the above-mentioned organic polymer having excellent thermal characteristics.
Alternatively, although it is composed of a non-woven fabric, the non-woven fabric is preferably used in view of processing cost, handleability and bulkiness. As the non-woven fabric, any conventionally known method such as using a short fiber as a web and subjecting it to a non-woven fabric by needle stick treatment can be adopted.
【００１２】本発明における耐熱繊維の単糸繊度は編織
物又は／及び不織布に加工できる範囲にあれば特に制限
はなく、通常は１〜１０デニールの範囲を使用する。ま
た不織布とする場合、短繊維長は４０〜１００ｍｍの範
囲で適宜選択すればよい。The single yarn fineness of the heat resistant fiber in the present invention is not particularly limited as long as it can be processed into a knitted woven fabric and / or a non-woven fabric, and a range of 1 to 10 denier is usually used. In the case of using a nonwoven fabric, the short fiber length may be appropriately selected within the range of 40 to 100 mm.
【００１３】本発明を構成する要件の一つは上部及び下
部繊維層の繊維材料と熱接着性繊維材料の構成比率に特
に限定はないが、通常は９５／５〜８０／２０（重量
部）の範囲が好ましい。構成比率が９５／５を越えると
熱接着繊維の溶融体にる発熱体の被覆が不均一となり、
一方構成比率が８０／２０未満では発熱体の被覆に必要
以上に熱接着性繊維成分が増えるため熱特性に優れたが
低下し、安全性に劣るものとなる。One of the requirements constituting the present invention is not particularly limited in the composition ratio of the fiber material of the upper and lower fiber layers and the heat-adhesive fiber material, but usually 95/5 to 80/20 (parts by weight). Is preferred. If the composition ratio exceeds 95/5, the coating of the heating element in the melt of the heat-bonded fibers becomes uneven,
On the other hand, if the composition ratio is less than 80/20, the heat-adhesive fiber component increases more than necessary for coating the heating element, so that the thermal characteristics are excellent but deteriorated, resulting in poor safety.
【００１４】本発明の評価に用いた各尺度は下記の手順
で求めた。Each scale used in the evaluation of the present invention was obtained by the following procedure.
【００１５】＜繊維の繊度＞デニコンを使用して試料長
１０ｃｍ、本数２０で単糸繊度を測定を行い、算術平均
値を求めた。<Fiber fineness> Using Denicon, the single yarn fineness was measured with a sample length of 10 cm and the number of yarns was 20 to obtain an arithmetic mean value.
【００１６】＜繊維の捲縮度及び捲縮数＞ＪＩＳ Ｌ−
１０１３に準拠して測定した。<Crimping degree and number of crimps of fiber> JIS L-
It measured based on 1013.
【００１７】＜熱劣化性＞４００℃で３０分間加熱した
後、表面繊維層及び内部熱接着繊維層の劣化を目視で観
察した。<Heat Deterioration> After heating at 400 ° C. for 30 minutes, the deterioration of the surface fiber layer and the internal heat-bonding fiber layer was visually observed.
【００１８】＜防炎性＞ＪＩＳ−１０９１、Ａ−１：消
防法に準じた方法で、残炎、残じん、炭化面積等を評価
した。<Flameproofness> JIS-1091, A-1: Afterflame, residual dust, carbonized area, etc. were evaluated by a method according to the Fire Service Law.
【００１９】＜難燃性＞ＪＩＳ−Ｋ−７０２１（１９７
２）、Ａ法１−２及びＡＳＴＭＤ２８６３−２０法に準
じた方法で評価した。<Flame Retardancy> JIS-K-7021 (197)
2), A method 1-2 and a method according to ASTM D2863-20 method.
【００２０】＜たばこ防融性＞消防法００００に規定さ
れた方法・条件で評価した。<Tobacco anti-fusible property> Evaluation was carried out according to the method and conditions specified in the Fire Service Act 0000.
【００２１】[0021]
【実施例】以下に本発明を実施例を挙げて説明するが勿
論本発明はこれらに限定されるものではない。EXAMPLES The present invention will be described below with reference to examples, but of course the present invention is not limited thereto.
【００２２】＜実施例１＞固有粘度０．６５ｄｌ／ｇの
ポリエチレンテレフタレート重合体を溶融紡糸し、次に
熱延伸した後、捲縮の付与、繊維の切断を行って、強度
０．８ＧＰａ、単糸繊度が１．５デニール繊維長が４１
ｍｍ、捲縮数８．５個／インチ、捲縮度／捲縮数：０．
５５の短繊維を得た。該短繊維を目付け１３０ｇ／ｍ2
となる様にニードルパンチ機を用いて針密度２５０本／
ｃｍ2 で刺針処理を施して不織布を得た。一方、固有粘
度２８ｄｌ／ｇのポリパラフェニレンベンツビスオキサ
ゾール重合体を乾湿式紡糸し、次いで捲縮加工、切断、
洗浄を行って、強度５．５ＧＰａ、単糸長１．５デニー
ル、繊維長４１ｍｍ、捲縮数７．２、捲縮度／捲縮数：
０．５３の短繊維を得た。これを１３０ｇ／ｍ2 となる
様に積層した後、該積層物をニードルパンチ機により針
密度２５０本／ｃｍ2 の条件で刺針処理を施し、厚さ
２．２ｍｍの不織布とした。前記熱接着繊維ウエブで直
径が０．５ｃｍの線状発熱体を挟着し、さらに該挟着物
の両外側面にポリパラフェニレンベンツビスオキサゾー
ル繊維からなる不織布を重畳した。なお、ポリパラフェ
ニレンベンツビスオキサゾール繊維からなる積層体重量
とポリエステル繊維からなる積層体の重量比率は８８／
１２となるように設定した。熱接着繊維係る構成体を２
９０℃で加熱処理して複合一体成形した。かくして得ら
れた電気カーペット構成体の防炎性、難燃性及び自己消
火性等を評価したところ、６０秒後の炭化面積＝８ｃｍ
２、酸素指数＝５０であり、たばこ防融性も良好であっ
た。比較的長い時間（４００℃、３０分間）加熱した後
の内部の熱接着性繊維の劣化は僅かであり、全体として
熱特性は満足すべきものであった。<Example 1> A polyethylene terephthalate polymer having an intrinsic viscosity of 0.65 dl / g was melt-spun and then heat-stretched, and then crimped and cut into fibers to obtain a strength of 0.8 GPa. Thread fineness is 1.5 denier Fiber length is 41
mm, number of crimps 8.5 / inch, degree of crimp / number of crimps: 0.
55 short fibers were obtained. Unit weight of the short fibers is 130 g / m 2
Use a needle punch machine to achieve a needle density of 250 /
A non-woven fabric was obtained by performing needle treatment with cm 2 . On the other hand, a polyparaphenylene benzbisoxazole polymer having an intrinsic viscosity of 28 dl / g was dry-wet spun, then crimped, cut,
After washing, the strength is 5.5 GPa, the single yarn length is 1.5 denier, the fiber length is 41 mm, the number of crimps is 7.2, and the degree of crimp / number of crimps is:
A short fiber of 0.53 was obtained. After laminating this to 130 g / m 2 , the laminate was needled with a needle punch machine at a needle density of 250 needles / cm 2 to give a nonwoven fabric having a thickness of 2.2 mm. A linear heating element having a diameter of 0.5 cm was sandwiched by the heat-bonding fiber web, and a nonwoven fabric made of polyparaphenylene benzbisoxazole fiber was superposed on both outer surfaces of the sandwich. The weight ratio of the laminated body made of polyparaphenylene benzbisoxazole fiber to the laminated body made of polyester fiber was 88 /
It was set to be 12. 2 heat-bonded fiber related components
Heat treatment was performed at 90 ° C. to perform composite integral molding. When the flame resistance, flame retardancy, self-extinguishing property, etc. of the thus obtained electric carpet constituent were evaluated, the carbonized area after 60 seconds was 8 cm.
2, the oxygen index was 50, and the tobacco anti-fusing property was also good. After heating for a relatively long time (400 ° C., 30 minutes), deterioration of the internally heat-adhesive fiber was slight, and the thermal characteristics were satisfactory as a whole.
【００２３】＜比較例１＞実施例１においてポリエステ
ル繊維に代えてポリエチレン繊維を用いた以外は実施例
１と同様の方法・条件で電気カーペットの構成体を作成
した。得られた電気カーペット構成体を高温加熱体と短
時間接触させたが表面繊維層に顕著な変化は認められな
かった。しかし、比較的長い時間（４００℃、３０分
間）加熱した後は内部の熱接着性繊維が再溶融して発熱
体の被覆状態に斑が見られた。<Comparative Example 1> A constitution of an electric carpet was prepared by the same method and conditions as in Example 1 except that polyethylene fiber was used in place of polyester fiber in Example 1. The obtained electric carpet composition was brought into contact with a high temperature heater for a short time, but no remarkable change was observed in the surface fiber layer. However, after heating for a relatively long time (400 ° C., 30 minutes), the internally heat-adhesive fibers were remelted and unevenness was observed in the covering state of the heating element.
【００２４】＜比較例２＞比較例１においてポリパラフ
ェニレンベンツビスオキサゾール繊維に代えてポリエス
テル繊維を用い、実開平３−６２１５号公報に記載され
た構成となるように各繊維材料を積層して電気カーペッ
ト構成体を作成した。得られた電気カーペット構成体を
高温加熱体と短時間接触させたところ、表面繊維層が溶
融して外観が著しく損なわれた。また内部の熱接着性繊
維が再溶融して発熱体の被覆状態に斑が見られ、実用性
に乏しいものとなった。Comparative Example 2 Polyester fiber was used in place of the polyparaphenylene benzbisoxazole fiber in Comparative Example 1 and each fiber material was laminated so as to have the constitution described in Japanese Utility Model Publication No. 3-6215. An electric carpet construction was created. When the obtained electric carpet composition was brought into contact with a high-temperature heating body for a short time, the surface fiber layer was melted and the appearance was significantly impaired. Further, the internally heat-adhesive fiber was remelted, and the coating state of the heating element was uneven, which made it impractical.
【００２５】＜比較例３＞実施例１においてポリパラフ
ェニレンベンツビスオキサゾール繊維に代えてアラミド
繊維（デュポン社商品名：ケブラー２９）を用いた以外
は実施例１と同様の方法・条件で電気カーペット構成体
を作成した。得られた電気カーペット構成体を比較的長
い時間（４００℃、３０分間）加熱したが、内層部の熱
接着性繊維の劣化は僅かであった。しかし、該電気カー
ペット構成体を高温加熱体と短時間接触させたとき表面
繊維層が熱分解し、実用価値に欠けるものとなった。Comparative Example 3 An electric carpet was prepared in the same manner as in Example 1 except that aramid fiber (trade name: Kevlar 29 manufactured by DuPont) was used in place of the polyparaphenylenebenzbisoxazole fiber in Example 1. Created a construct. The obtained electric carpet composition was heated for a relatively long time (400 ° C., 30 minutes), but the thermal adhesive fiber in the inner layer portion was slightly deteriorated. However, when the electric carpet constituent was brought into contact with a high-temperature heating body for a short time, the surface fiber layer was thermally decomposed, resulting in lack of practical value.
【００２６】[0026]
【発明の効果】安全性を改善すべく高融点の熱接着繊維
で発熱体を挟着し、その両面を防炎性や防融性に優れた
繊維層で被覆することにより従来なかった火災に対する
安全性の高い電気カーペット基本構成体を得ることが可
能になる。EFFECTS OF THE INVENTION In order to improve safety, a heating element is sandwiched by high-melting-point heat-bonding fibers, and both sides of the heating element are covered with a fiber layer having excellent flameproofness and melting resistance to protect against a fire that has never been seen before. It is possible to obtain a highly safe electric carpet basic structure.
【図１】本発明に係る電気カーペットの構成を説明する
ための概略図である。FIG. 1 is a schematic diagram for explaining a configuration of an electric carpet according to the present invention.
１ 電気抵抗発熱体 ２ 温度検出端 ３、３’ 熱接着性繊維層 ４、４’ 上部及び下部繊維層 DESCRIPTION OF SYMBOLS 1 Electric resistance heating element 2 Temperature detection end 3, 3'Thermal adhesive fiber layer 4, 4 'Upper and lower fiber layers
Claims (2)
以上の熱可塑性重合体からなる熱接着性繊維構造体で挟
着し、さらに該熱接着性繊維層の両外側面を４５０℃以
上の分解温度を有する非溶融性の有機合成繊維の編織物
又はウエブで重畳してなることを特徴とする電気カーペ
ット。1. The heating element and the temperature detecting end have a melting point of 200 ° C.
A knitted woven fabric of non-melting organic synthetic fibers sandwiched between the above-mentioned thermoadhesive fiber structures made of a thermoplastic polymer, and further having both outer surfaces of the thermoadhesive fiber layer having a decomposition temperature of 450 ° C. or higher. An electric carpet characterized by being superposed on a web.
ール重合体からなる繊維であることを特徴とする請求項
１記載の電気カーペット。2. The electric carpet according to claim 1, wherein the non-melting organic synthetic fiber is a fiber made of a polybenzazole polymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15601394A JP3555662B2 (en) | 1994-07-07 | 1994-07-07 | Electric carpet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15601394A JP3555662B2 (en) | 1994-07-07 | 1994-07-07 | Electric carpet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0821640A true JPH0821640A (en) | 1996-01-23 |
| JP3555662B2 JP3555662B2 (en) | 2004-08-18 |
Family
ID=15618416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15601394A Expired - Fee Related JP3555662B2 (en) | 1994-07-07 | 1994-07-07 | Electric carpet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3555662B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011001953A1 (en) * | 2009-07-03 | 2011-01-06 | 株式会社クラベ | Cord-like heater and planar heater |
-
1994
- 1994-07-07 JP JP15601394A patent/JP3555662B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011001953A1 (en) * | 2009-07-03 | 2011-01-06 | 株式会社クラベ | Cord-like heater and planar heater |
| JPWO2011001953A1 (en) * | 2009-07-03 | 2012-12-13 | 株式会社クラベ | Cord heater and sheet heater |
| JP5916385B2 (en) * | 2009-07-03 | 2016-05-11 | 株式会社クラベ | Cord heater and sheet heater |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3555662B2 (en) | 2004-08-18 |
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