JP6040434B2 - Nonflammable membrane ceiling material with excellent tear propagation prevention - Google Patents

Nonflammable membrane ceiling material with excellent tear propagation prevention Download PDF

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JP6040434B2
JP6040434B2 JP2012183011A JP2012183011A JP6040434B2 JP 6040434 B2 JP6040434 B2 JP 6040434B2 JP 2012183011 A JP2012183011 A JP 2012183011A JP 2012183011 A JP2012183011 A JP 2012183011A JP 6040434 B2 JP6040434 B2 JP 6040434B2
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JP2014040033A (en
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狩野 俊也
俊也 狩野
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Hiraoka and Co Ltd
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本発明は、織物を基材とする不燃性膜材料に関するものであり、更に詳しくは可撓性を有し、可視光透過率が高く適度な光の拡散性を有し、特に物が衝突した時に膜材料に穴が開いたとしても、その引裂伝播防止性を発現する不燃性膜天井材料に関する。 The present invention relates to a non-combustible film material based on a woven fabric. More specifically, the present invention has flexibility, high visible light transmittance, moderate light diffusibility, and particularly collision of objects. The present invention relates to a nonflammable film ceiling material that exhibits a tear propagation preventing property even when a hole is sometimes formed in the film material.

不燃膜材料は、ガラス繊維織物を基材として、ガラス繊維織物を難燃性樹脂で含浸及び/又は被覆したものが主体であるが、特に不燃用途ではISO5660Part1に規定の燃焼特性が不可欠であり、特に遮煙効果確保のために、燃焼時に不燃膜材料本体に穴開貫通を発生しないことが要求される。そのため十分な遮煙効果を得るためには糸目が混み、織組織において空隙率の極めて小さい薄手のガラス繊維織物を使用されている。しかし、このような高密度ガラス繊維織物では隣接する糸同士の隙間が極少のまま難燃性樹脂で含浸及び/又は被覆して固着されて変形の自由度を損なうことで破断し易い傾向がある。また、薄手の高密度ガラス繊維織物は元来裂け易く、しかもその引裂伝播性が大きいため、膜材料に物が衝突することで膜材に大きな穴や裂け目を生じるなど、耐衝撃性に乏しいものであった。   The non-combustible film material is mainly composed of a glass fiber fabric as a base material, and the glass fiber fabric is impregnated and / or coated with a flame retardant resin, but in particular in non-combustible applications, the combustion characteristics specified in ISO 5660 Part 1 are indispensable. In particular, in order to ensure the smoke shielding effect, it is required that no perforation occurs in the non-combustible film material body during combustion. For this reason, in order to obtain a sufficient smoke shielding effect, a thin glass fiber woven fabric is used which has a fine mesh and a very small porosity in the woven structure. However, in such a high-density glass fiber woven fabric, there is a tendency that the gap between adjacent yarns is easy to break by impregnating and / or covering with a flame retardant resin and impairing the degree of freedom of deformation with a minimal gap between adjacent yarns. . Thin high-density glass fiber fabrics are inherently easy to tear and have high tear propagation properties, so that they have poor impact resistance, such as large holes and tears in the film material when objects collide with the film material. Met.

このような裂けの問題は高密度ガラス繊維織物に限らず、ポリエステルタフタ、ナイロンタフタなどの高密度軽量平織物(50〜100デニールの糸条を150〜300本/inchで含む気密性織物)を使用した商品においても同様に深刻である。そのため例えば、衣料ではウインドブレーカー生地、スポーツウエア生地、自動車ではエアーバッグ生地、スポーツ分野では気球やパラグライダーの生地、ウインドサーフィンのセールクロスなどにおいては、引裂の伝播を最小限に食い止めるためにリップストップ(rip−stop)織物が使用されている。このようなリップストップ織物の例として、総繊度が35dtex以下のポリエステルマルチフィラメントAと、総繊度が35dtexより大きいポリエステルマルチフィラメントBとを用いて得られたリップストップタフタ織物(特許文献1)、また、20〜50デニールの合成繊維マルチフィラメント糸を地糸とする織物であって,経緯方向共に地糸が同口にて2〜4本引き揃えられてなる畝部を少なくとも2つ以上有し,畝部の間には地糸が少なくとも1本組織されている格子を有するリップストップ織物(特許文献2)、あるいは本体布糸成分(難燃性繊維)と、合成ステープルファイバー・シース(ポリp−フェニレンテレフタルアミド)および無機コア(金属繊維)を有する耐切断性糸を含んでなる、本体布糸成分よりも少なくとも50%大きい引張強度を有するリップストップ糸成分とを含んでなる糸成分から製造された織布(特許文献3)、さらには芳香族ポリアミド繊維からなる糸条と異種繊維からなる糸条とから構成され、芳香族ポリアミド繊維糸条が、互いに隣接並列する2〜5本の群毎に、互いに間隔をおいて異種繊維糸条間に挿入配列された織物(特許文献4)などが知られている。これらは何れも引裂伝播を食い止めるために織物の一部に繊度の大きい糸条(特許文献1)、引き揃え糸条(特許文献2)、金属繊維(特許文献3)、芳香族ポリアミド繊維糸条(特許文献4)など、破壊強度の高い糸条を防波堤的な役割で配置することにより、各々引裂伝播抑止効果を発現するものである。   Such tearing problems are not limited to high-density glass fiber fabrics, but high-density lightweight plain fabrics such as polyester taffeta and nylon taffeta (airtight fabrics containing 150 to 300 yarns of 50 to 100 denier / inch). The same applies to the products used. So, for example, windbreaker fabrics, sportswear fabrics for clothing, airbag fabrics for automobiles, balloon and paraglider fabrics for sports, and sailsurf cloths for windsurfing. rip-stop) fabric is used. As an example of such a ripstop fabric, a ripstop taffeta fabric obtained by using a polyester multifilament A having a total fineness of 35 dtex or less and a polyester multifilament B having a total fineness of greater than 35 dtex (Patent Document 1), A woven fabric having a synthetic fiber multifilament yarn of 20 to 50 denier as the ground yarn, and having at least two buttocks formed by aligning 2 to 4 ground yarns in the same direction in the weft direction, A ripstop woven fabric (patent document 2) having a lattice in which at least one ground yarn is organized between the heel portions, or a main fabric yarn component (flame retardant fiber) and a synthetic staple fiber sheath (poly p- Less than the main fabric yarn component, comprising a cut-resistant yarn having a phenylene terephthalamide) and an inorganic core (metal fiber) A woven fabric produced from a yarn component comprising a ripstop yarn component having a tensile strength of 50% greater (Patent Document 3), and a yarn comprising an aromatic polyamide fiber and a yarn comprising a different fiber. Known is a woven fabric (Patent Document 4) in which aromatic polyamide fiber yarns are inserted and arranged between different types of fiber yarns at intervals of two to five groups adjacent to each other in parallel. Yes. In order to prevent the propagation of tears, all of these yarns have a high degree of fineness (Patent Document 1), aligned yarns (Patent Document 2), metal fibers (Patent Document 3), and aromatic polyamide fiber yarns. By disposing yarns having high breaking strength such as (Patent Document 4) in a role of a breakwater, a tear propagation inhibiting effect is exhibited.

特許文献1〜4に開示されているリップストップ織物は、何れも引裂伝播抑止効果を発現するものであるが、何れも不燃性を具備するものではなく、従ってISO5660Part1に規定の燃焼特性に適合する不燃膜材料用の基材としては不適切なものである。拠ってガラス繊維織物を基材として、ガラス繊維織物を難燃性樹脂で含浸及び/又は被覆してなる膜材料がISO5660Part1に規定の燃焼特性に適合し、かつ、引裂伝播抑止効果を発現するような不燃膜材料はまだ得られていなかった。   Although all the ripstop fabrics disclosed in Patent Documents 1 to 4 exhibit a tear propagation inhibiting effect, none of them has incombustibility, and therefore conforms to the combustion characteristics defined in ISO 5660 Part 1. It is unsuitable as a base material for incombustible film materials. Accordingly, a membrane material obtained by impregnating and / or coating glass fiber fabric with a flame retardant resin based on glass fiber fabric conforms to the combustion characteristics specified in ISO 5660 Part 1 and exhibits a tear propagation inhibiting effect. No incombustible film material has been obtained yet.

特開2010−156064号公報JP 2010-156064 A 特開平11−277659号公報JP 11-277659 A 特表2005−529249号公報JP 2005-529249 A 特開昭59−20652号公報JP 59-20652 A

本発明は、膜天井に用いる建築構造物用膜材料であって、特にISO5660Part1に規定の燃焼特性に適合し、しかも物が衝突するなどして膜材料に穴が開いたとしても、優れた引裂伝播抑止効果を発現し、膜材料の裂傷被害を効果的に軽減することを可能とする耐衝撃性に優れた不燃性膜天井材料の提供をしようとするものである。 The present invention is a membrane material for building structures used for membrane ceilings , which is particularly suitable for ISO 5660 Part 1 in conformity with the combustion characteristics specified, and even if a hole is opened in the membrane material due to collision of an object, etc. An object of the present invention is to provide a nonflammable film ceiling material that exhibits a propagation suppressing effect and has excellent impact resistance that can effectively reduce damage to the film material.

上記課題を解決するために、無機繊維糸条を織物基材の主構成成分とし、この無機繊維糸条を経糸及び緯糸とする空隙率3%以下の織物基材の片面以上に、難燃樹脂被覆層を設けてなる光拡散透過性積層体において、織物基材が、少なくとも経糸又は緯糸の一部に副構成成分として、高弾性率糸条を配置して含む混成織物として、高弾性率糸条の配置率を、混成織物の平米単位質量当たり1〜18質量%とすることによって、ISO5660Part1に規定の燃焼特性に適合し、しかも膜材料に衝撃が加えられた時に、優れた引裂伝播抑止効果を発現し、膜材料の裂傷被害を効果的に軽減できることを見出して本発明を完成するに至った。 In order to solve the above-mentioned problem, a flame retardant resin is used on at least one side of a woven fabric base material having a porosity of 3% or less using an inorganic fiber yarn as a main component of the woven fabric base material and using the inorganic fiber yarn as a warp and a weft. A high elastic modulus yarn as a hybrid woven fabric in which a high elastic modulus yarn is arranged as a sub-component in at least a part of a warp or a weft in a light diffusible and transparent laminate having a coating layer. By setting the strip arrangement ratio to 1 to 18% by mass per square meter of the hybrid woven fabric, it is compatible with the combustion characteristics specified in ISO 5660 Part 1 and has an excellent tear propagation inhibiting effect when an impact is applied to the membrane material. And the present invention was completed by finding that the damage to the membrane material can be effectively reduced.

すなわち本発明の引裂伝播防止性に優れた不燃性膜天井材料は、ガラス繊維、アルミナ繊維、及びシリカアルミナ繊維から選ばれた1種以上の無機繊維糸条を織物基材の主構成成分とし、当該無機繊維糸条を経糸及び緯糸とする空隙率3%以下の前記織物基材の片面以上に、難燃樹脂被覆層が設けられてなる光拡散透過性積層体であって、前記織物基材が、少なくとも経糸又は緯糸の一部に副構成成分として、炭素繊維高弾性率糸条を配置して含む混成織物であり、前記炭素繊維高弾性率糸条の配置率が、前記混成織物の平米単位質量当たり1〜18質量%で、かつ、前記混成織物が、酸化チタン顔料を3〜30質量%含む乳化重合ポリ塩化ビニル樹脂、または2液付加反応硬化型シリコーン樹脂による着色隠蔽層により、前記混成織物の質量に対して25〜100質量%で被覆することによって、前記炭素繊維高弾性率糸条の配置及び存在が隠蔽されていることが好ましい。これによってISO5660Part1に規定の燃焼特性に適合し、しかも物が衝突するなどして膜材料に穴が開いたとしても、優れた引裂伝播抑止効果を発現して膜材料の裂傷被害を軽減することができ、さらに得られる不燃性膜材料の外観において、炭素繊維高弾性率糸条の配置・存在を目立たなくすることができる。 That is, the nonflammable film ceiling material excellent in tear propagation preventing property of the present invention has at least one inorganic fiber yarn selected from glass fiber, alumina fiber, and silica alumina fiber as a main component of the textile substrate, A light diffusive transparent laminate in which a flame retardant resin coating layer is provided on one side or more of the fabric base material having a porosity of 3% or less, wherein the inorganic fiber yarn is a warp and a weft. Is a hybrid woven fabric including carbon fiber high modulus yarns arranged as sub-components in at least a part of the warp or weft, and the arrangement rate of the carbon fiber high modulus yarns is a square meter of the hybrid woven fabric. 1 to 18% by mass per unit mass, and the hybrid fabric is an emulsion-polymerized polyvinyl chloride resin containing 3 to 30% by mass of a titanium oxide pigment, or a colored hiding layer made of a two-component addition reaction curable silicone resin, Hybrid fabric quality By coating with 25 to 100 wt% with respect to, it is preferable that the arrangement and the presence of the carbon fiber high modulus yarn is concealed. As a result, it conforms to the combustion characteristics specified in ISO5660Part1, and even if a hole is formed in the membrane material due to collision of an object, an excellent tear propagation suppression effect is exhibited and the damage to the membrane material is reduced. In addition, in the appearance of the obtained non-combustible film material, the arrangement / existence of the carbon fiber high modulus yarn can be made inconspicuous.

本発明の引裂伝播防止性に優れた不燃性膜天井材料は、前記炭素繊維高弾性率糸条同士の配置間隔が、5mm〜50mmの等間隔であることが好ましい。これによって物が衝突するなどして膜材料に穴が開いたとしても、優れた引裂伝播抑止効果を発現して膜材料の裂傷被害を軽減することができる。 In the nonflammable film ceiling material excellent in tear propagation preventing property of the present invention, it is preferable that the arrangement intervals of the carbon fiber high modulus yarns are equal intervals of 5 mm to 50 mm. As a result, even if an object collides and a hole is opened in the membrane material, an excellent tear propagation inhibiting effect can be exhibited and the damage to the membrane material can be reduced.

本発明の引裂伝播防止性に優れた不燃性膜天井材料は、前記炭素繊維高弾性率糸条が、2本引揃であることが好ましい。これによって物が衝突するなどして膜材料に穴が開いたとしても、優れた引裂伝播抑止効果を発現して膜材料の裂傷被害を軽減することができる。 In the nonflammable film ceiling material excellent in tear propagation preventing property of the present invention, it is preferable that the carbon fiber high modulus yarns are two- stringed . As a result, even if an object collides and a hole is opened in the membrane material, an excellent tear propagation inhibiting effect can be exhibited and the damage to the membrane material can be reduced.

本発明の引裂伝播防止性に優れた不燃性膜天井材料は、前記光拡散透過性積層体を試験体として、コーンカロリーメーター試験法(ISO5660Part1)において前記光拡散透過性シートに対して輻射電気ヒ−タ−による輻射熱を、50kW/mで照射した時に、加熱開始後20分間の総発熱量が8MJ/m以下であり、且つ加熱開始後20分間、10秒以上継続して最高発熱速度が200kW/mを超えない燃焼特性を有することが好ましい。これによって国土交通大臣が定めた不燃材料(建設省告示)に適合することができる。 The nonflammable film ceiling material excellent in tear propagation preventing property of the present invention is a radiant electric film with respect to the light diffusive permeable sheet in the cone calorimeter test method (ISO 5660 Part 1) using the light diffusive permeable laminate as a test body. -When radiant heat is applied at 50 kW / m 2 , the total calorific value for 20 minutes after the start of heating is 8 MJ / m 2 or less, and the maximum heat generation rate continues for 10 minutes or more for 20 minutes after the start of heating. Preferably has combustion characteristics not exceeding 200 kW / m 2 . This makes it possible to comply with non-combustible materials (Ministry of Construction Notification) established by the Minister of Land, Infrastructure, Transport and Tourism.

本発明によれば、ISO5660Part1に規定の燃焼特性に適合し、さらに建築基準法施行令の規定(第百八条の二)にも適合し、しかも物が衝突するなどして膜材料に穴が開いたとしても、優れた引裂伝播抑止効果を発現し、膜材料の裂傷被害を効果的に軽減する耐衝撃性に優れた不燃膜材料を提供することができる。従って本発明の膜材により、膜天井に用いる建築構造物用膜材料などに広く適して用いることができる。 According to the present invention, it conforms to the combustion characteristics defined in ISO 5660 Part 1 and further conforms to the provisions of the Building Standards Law Enforcement Order (Article 108-2), and the membrane material has a hole, for example, when it collides with it. Even if it is opened, it is possible to provide an incombustible film material excellent in impact resistance that exhibits an excellent tear propagation inhibiting effect and that effectively reduces damage to the film material. Therefore, the membrane material of the present invention can be widely used as a membrane material for building structures used for membrane ceilings .

本発明の不燃性膜天井材料の断面の一例を示す図The figure which shows an example of the cross section of the nonflammable film | membrane ceiling material of this invention 本発明の不燃性膜天井材料に用いる混成織物の一例を示す図The figure which shows an example of the hybrid fabric used for the nonflammable membrane ceiling material of this invention 本発明の不燃性膜天井材料に用いる混成織物の一例を示す図The figure which shows an example of the hybrid fabric used for the nonflammable membrane ceiling material of this invention 本発明の不燃性膜天井材料に用いる混成織物の一例を示す図The figure which shows an example of the hybrid fabric used for the nonflammable membrane ceiling material of this invention

本発明の引裂伝播防止性に優れた不燃性膜天井材料(以下、不燃性膜天井材料という)ガラス繊維、アルミナ繊維、及びシリカアルミナ繊維から選ばれた1種以上の無機繊維糸条(以下、無機繊維糸条という)を織物基材の主構成成分とし、これら無機繊維糸条を経糸及び緯糸とする空隙率3%以下の織物基材の片面以上に、難燃樹脂被覆層が設けられてなる光拡散透過性積層体であって、織物基材が、少なくとも経糸又は緯糸の一部に副構成成分として、炭素繊維高弾性率糸条を配置して含む混成織物であり、炭素繊維高弾性率糸条の配置率が、混成織物の平米単位質量当たり1〜18質量%で得られる膜材である。 The nonflammable membrane ceiling material (hereinafter referred to as nonflammable membrane ceiling material ) excellent in tear propagation preventing property of the present invention is one or more inorganic fiber yarns (hereinafter referred to as glass fibers, alumina fibers, and silica alumina fibers ). ) , The main component of the woven fabric base material, and a flame retardant resin coating layer is provided on at least one side of the woven fabric base material having a porosity of 3% or less using these inorganic fiber yarns as warps and wefts. a light diffusing transparent laminate comprising Te, textile substrate is, as a secondary component at least part of the warp or weft, a hybrid fabric comprising by arranging the carbon fiber high modulus yarn, a carbon fiber net It is a film material obtained with an elastic modulus yarn arrangement rate of 1 to 18% by mass per square meter unit mass of the hybrid fabric.

本発明の不燃性膜天井材料に用いる織物基材は無機繊維糸条を織物基材の主構成成分とし、この無機繊維糸条を経糸及び緯糸とする空隙率3%以下の織物で、少なくとも経糸又は緯糸の一部に、副構成成分として、炭素繊維高弾性率糸条(以下、炭素繊維糸条と記すことがある)を配置して含む混成織物である。無機繊維糸条は、ガラス繊維、アルミナ繊維、及びシリカアルミナ繊維から選ばれた1種以上で構成され、これらはフィラメント直径が3〜10μm、繊度138〜2223dtex(デシテックス)、特に277〜1112dtexのマルチフィラメントで、フィラメント数50〜500本、特に100〜300本で集束してなる糸条であり、さらに25〜200T/m程度の撚りが掛けられた撚糸または合撚糸である。ガラス繊維としては、E(無アルカリ)ガラス、C(アルカリ含)ガラス、Mガラス、Aガラス、Sガラス、Dガラスなど何れのガラス組成であってもよい。これらの無機繊維糸条は撚りを掛けて、あるいは撚りを掛けずに単独使用または混用、合撚した、断面が円形、楕円、または扁平の糸条である。これら無機繊維糸条による織物は、平織、綾織、繻子織、模紗織など公知の織布が挙げられるが、中でも特に平織織布が得られる不燃性膜天井材料の経緯物性バランスに優れ好ましい。織物基材は糸条間の間隙を密にして平行配置した経糸、及び糸条間の間隙を密にして平行配置した緯糸を含んで構成された、経糸と緯糸との織交点に生じる空隙の和が0〜3%の空隙率である平織の高密度織物が好ましく、経糸、及び緯糸の打ち込み密度は各々、277〜1112dtexの糸条を30〜100本/inchである。(277dtexの糸条の場合は最大100本/inch、1112dtexの糸条の場合は最小30本/inch)空隙率が3%を越えると、ISO5660Part1に規定の燃焼特性に適合できなくなることがある。これらの織物基材には、シランカップリング剤処理が施されていることが好ましい。 The woven fabric base material used for the nonflammable membrane ceiling material of the present invention is a woven fabric having an inorganic fiber yarn as a main constituent component of the woven fabric base material and having the inorganic fiber yarn as warp and weft and having a porosity of 3% or less, and at least warp. Alternatively, it is a hybrid woven fabric including carbon fiber high modulus yarns (hereinafter sometimes referred to as carbon fiber yarns) arranged as sub-components in a part of the weft yarns. The inorganic fiber yarn is composed of at least one selected from glass fiber, alumina fiber, and silica alumina fiber, and these are multifilaments having a filament diameter of 3 to 10 μm and a fineness of 138 to 2223 dtex (decitex), particularly 277 to 1112 dtex. It is a filament which is a filament formed by bundling with 50 to 500 filaments, particularly 100 to 300 filaments, and is a twisted yarn or a twisted yarn in which a twist of about 25 to 200 T / m is applied. The glass fiber may have any glass composition such as E (non-alkali) glass, C (containing alkali) glass, M glass, A glass, S glass, and D glass. These inorganic fiber yarns are yarns having a circular, elliptical, or flat cross section that are used alone or mixed and twisted with or without twisting. Examples of the woven fabric made of these inorganic fiber yarns include known woven fabrics such as plain weave, twill weave, satin weave and imitation weave. Among them, the non-combustible membrane ceiling material from which the plain weave fabric can be obtained is particularly excellent in the balance of the background and physical properties. The woven fabric base material is composed of warps arranged in parallel with a close gap between the yarns and wefts arranged in parallel with a close gap between the yarns. A plain high-density woven fabric with a sum of 0 to 3% is preferable, and the warp and weft driving density is 30 to 100 yarns / inch of 277 to 1112 dtex, respectively. (Maximum 100 strands / inch for 277 dtex yarn, 30 minimum / inch for 1112 dtex yarn) If the porosity exceeds 3%, the combustion characteristics specified in ISO5660Part1 may not be met. These textile base materials are preferably subjected to a silane coupling agent treatment.

本発明の不燃性膜天井材料に用いる織物基材は副構成成分として、炭素繊維糸条、炭素鋼糸条、及びステンレス鋼糸条から選ばれた1種以上の炭素繊維糸条を配置して含む、厚さが0.1mm〜0.75mm、特に0.15mm〜0.5mm、質量が65g/m〜500g/m、特に100g/m〜325g/mの混成織物であり、炭素繊維糸条の配置率は、混成織物の平米単位質量当たり1〜18質量%、特に4〜13質量%であることが好ましい。炭素繊維糸条の配置率が1質量%未満だと得られる不燃性膜天井材料の引裂伝播抑止効果が不十分となり、また18質量%を越えると得られる不燃性膜天井材料の光拡散透過性が不十分となることがある。炭素繊維糸条の配置例は、1)750dtexのガラス繊維糸条を織物基材の主構成成分とし、副構成成分として緯糸の一部に1100dtexの炭素繊維糸条を配置し、炭素繊維糸条同士の間隔を50mmの等間隔とした横ストライプ配置混成織物の場合、ガラス繊維糸条の比重2.5、炭素繊維糸条の比重1.8とした時に炭素繊維糸条の配置率は1.08質量%である。2)また上記1)の混成織物の経糸の一部にも1100dtexの炭素繊維糸条を配置し、炭素繊維糸条同士の間隔を50mmの等間隔とした格子配置混成織物の場合、炭素繊維糸条の配置率は2.18質量%である。3)また750dtexのガラス繊維糸条を織物基材の主構成成分とし、副構成成分として緯糸の一部に1100dtexの炭素繊維糸条を配置し、炭素繊維糸条同士の間隔を5mmの等間隔とした横ストライプ配置混成織物の場合、炭素繊維糸条の配置率は6.27質量%である。4)また上記3)の混成織物の経糸の一部にも1100dtexの炭素繊維糸条を配置し、炭素繊維糸条同士の間隔を5mmの等間隔とした格子配置混成織物の場合、炭素繊維糸条の配置率は12.85質量%である。すなわち炭素繊維糸条同士の配置間隔は、5mm〜50mmの等間隔、特に10mm〜30mmの等間隔であること、経糸及び緯糸の両方に配置された格子配置であること、さらには炭素繊維糸条が2本引揃での配置であることが好ましい。 The textile base material used for the nonflammable membrane ceiling material of the present invention has one or more carbon fiber yarns selected from carbon fiber yarns, carbon steel yarns, and stainless steel yarns as sub-components. comprising a thickness of 0.1Mm~0.75Mm, particularly 0.15Mm~0.5Mm, mass 65g / m 2 ~500g / m 2 , in particular hybrid fabric 100g / m 2 ~325g / m 2 , The arrangement ratio of the carbon fiber yarns is preferably 1 to 18% by mass, more preferably 4 to 13% by mass, per square meter unit mass of the hybrid fabric. When the arrangement ratio of the carbon fiber yarn is less than 1% by mass, the effect of suppressing the tear propagation of the non-combustible film ceiling material becomes insufficient, and when it exceeds 18% by mass, the light diffusion permeability of the non-combustible film ceiling material obtained May be insufficient. Examples of arrangement of carbon fiber yarns are as follows: 1) A glass fiber yarn of 750 dtex is used as a main constituent component of a woven fabric base material, and a carbon fiber yarn of 1100 dtex is arranged as a sub constituent component in a part of a weft yarn. In the case of a mixed fabric having horizontal stripes with an interval of 50 mm between them, when the specific gravity of the glass fiber yarn is 2.5 and the specific gravity of the carbon fiber yarn is 1.8, the arrangement rate of the carbon fiber yarn is 1. It is 08 mass%. 2) In addition, in the case of a grid-arranged hybrid fabric in which carbon fiber yarns of 1100 dtex are arranged on a part of the warp of the hybrid fabric of 1) above, and the intervals between the carbon fiber yarns are 50 mm, the carbon fiber yarn The arrangement rate of the stripes is 2.18% by mass. 3) Further, a 750 dtex glass fiber yarn is used as a main component of the woven fabric base material, and a 1100 dtex carbon fiber yarn is arranged as a sub-component in a part of the weft, and the intervals between the carbon fiber yarns are equal to 5 mm. In the case of the horizontal stripe arrangement hybrid fabric, the arrangement ratio of the carbon fiber yarn is 6.27% by mass. 4) In addition, in the case of a lattice-arranged hybrid fabric in which carbon fiber yarns of 1100 dtex are arranged on a part of the warp of the hybrid fabric of 3) above, and the intervals between the carbon fiber yarns are 5 mm, the carbon fiber yarn The arrangement ratio of the stripes is 12.85% by mass. That is, the arrangement interval between the carbon fiber yarns is an equal interval of 5 mm to 50 mm, particularly an equal interval of 10 mm to 30 mm, a lattice arrangement arranged on both the warp and the weft, and further, the carbon fiber yarn. Is preferably arranged in a two-piece arrangement.

炭素繊維糸条としてはPAN系炭素繊維、ピッチ系炭素繊維が使用でき、これらはフィラメント直径が3〜10μm、繊度138〜2223dtex(デシテックス)、特に277〜1112dtexのマルチフィラメントで、フィラメント数50〜500本、特に100〜300本で集束してなる糸条である。炭素鋼糸条としては、炭素含有量が0.3%の低炭素鋼、0.3〜0.7%の中炭素鋼、0.7%以上の高炭素鋼からなるモノフィラメント(線)で、特に直径が0.1mm〜0.3mmの高炭素鋼線(ピアノ線、タイヤ用スチールコード)が使用できる。高炭素鋼線(比重7.85)を用いる場合は、その配置間隔は20mm〜50mmで配置率が混成織物の平米単位質量当たり6〜15質量%であることが好ましい。またステンレス鋼糸条としては、SUS304、もしくはSUS316Lによるモノフィラメント(線:比重7.7)で、特に直径が0.1mm〜0.3mmのステンレス鋼線、またはSUS304、もしくはSUS316Lによるフィラメント直径が10μm〜30μm、繊度277〜2223dtex(デシテックス)、特に277〜1112dtexのマルチフィラメントで、フィラメント数50〜500本、特に100〜300本で集束してなる糸条である。これらの高弾性率糸条の引張弾性率は、10000〜40000kg/mm、特に20000〜40000kg/mmが好ましい。 As the carbon fiber yarns, PAN-based carbon fibers and pitch-based carbon fibers can be used. These are multifilaments having a filament diameter of 3 to 10 μm and a fineness of 138 to 2223 dtex (decitex), particularly 277 to 1112 dtex, and the number of filaments is 50 to 500. It is a yarn formed by concentrating a book, particularly 100 to 300. The carbon steel yarn is a monofilament (wire) made of a low carbon steel having a carbon content of 0.3%, a medium carbon steel of 0.3 to 0.7%, and a high carbon steel of 0.7% or more, In particular, a high carbon steel wire (piano wire, tire steel cord) having a diameter of 0.1 mm to 0.3 mm can be used. When using a high carbon steel wire (specific gravity 7.85), it is preferable that the arrangement | positioning space | interval is 20 mm-50 mm, and an arrangement rate is 6-15 mass% per square meter unit mass of a hybrid fabric. Further, as the stainless steel yarn, SUS304 or SUS316L monofilament (line: specific gravity 7.7), especially stainless steel wire having a diameter of 0.1 mm to 0.3 mm, or SUS304 or SUS316L filament diameter of 10 μm to It is a multifilament having a diameter of 30 μm and a fineness of 277 to 2223 dtex (decitex), particularly 277 to 1112 dtex, and is bundled with 50 to 500 filaments, particularly 100 to 300 filaments. The tensile elastic modulus of these high elastic modulus yarns is preferably 10,000 to 40,000 kg / mm 2 , particularly preferably 20000 to 40,000 kg / mm 2 .

また、本発明において混成織物が、酸化チタンを含む着色層で被覆されていることが好ましい。炭素繊維糸条を酸化チタン顔料で隠蔽することにより、得られる不燃性膜天井材料の外観において、炭素繊維糸条の配置や存在を目立たなくすることができる。酸化チタンを含む着色層は、酸化チタン顔料とバインダー成分として熱可塑性樹脂から構成され、特に塩化ビニル樹脂、またはシリコーン樹脂をバインダー成分として、バインダー固形分に対して酸化チタン顔料を3〜30質量%含有する塗液による乾燥塗膜である。このような酸化チタンを含む着色層はグラビア印刷、シルクスクリーン印刷、スプレー塗布、ナイフコーティング、デッピンング(浸漬法)など公知の塗工によって行うことができる。酸化チタンを含む着色層の形成は表裏合計で、織物基材(混成織物)の質量に対して、25〜100質量%、特に25〜75質量%である。 In the present invention, the hybrid fabric is preferably coated with a colored layer containing titanium oxide. By concealing the carbon fiber yarns with the titanium oxide pigment, the arrangement and presence of the carbon fiber yarns can be made inconspicuous in the appearance of the obtained non-combustible film ceiling material. The colored layer containing titanium oxide is composed of a titanium oxide pigment and a thermoplastic resin as a binder component, in particular, a vinyl chloride resin or a silicone resin as a binder component, and 3 to 30% by mass of the titanium oxide pigment with respect to the binder solid content. It is a dry paint film by the coating liquid to contain. Such a colored layer containing titanium oxide can be formed by known coating methods such as gravure printing, silk screen printing, spray coating, knife coating, and dipping (dipping method). The formation of the colored layer containing titanium oxide is the sum of the front and back surfaces, and is 25 to 100% by mass, particularly 25 to 75% by mass, based on the mass of the fabric base material (hybrid fabric).

本発明の不燃性膜天井材料において難燃樹脂被覆層を形成する成分としての合成樹脂は、塩化ビニル樹脂、塩化ビニル系共重合体樹脂、オレフィン樹脂、オレフィン系共重合体樹脂、ウレタン樹脂、ウレタン系共重合体樹脂、アクリル樹脂、アクリル系共重合体樹脂、酢酸ビニル樹脂、酢酸ビニル系共重合体樹脂、スチレン樹脂、スチレン系共重合体樹脂、ポリエステル樹脂、ポリエステル系共重合体樹脂、フッ素含有共重合体樹脂、シリコーン樹脂、シリコーンゴム、ポリカーボネート、ポリアミド、ポリエーテル、ポリエステルアミド、ポリフェニレンスルフィド、ポリエーテルエステルなどの熱可塑性樹脂、及びこれらの熱可塑性樹脂の架橋体などであるが、特に不燃性の観点からはシリコーン樹脂、シリコーンゴムが好ましい。難燃樹脂被覆層の形成は表裏合計で、織物基材(混成織物)の質量に対して、25〜150質量%、特に50〜100質量%である。難燃樹脂被覆層の質量が25質量%未満だと得られる膜材料の形態安定性が不十分となることがあり、150質量%を越えるとISO5660Part1に規定の燃焼特性に適合できなくなることがある。 The synthetic resin as a component for forming the flame retardant resin coating layer in the non-combustible film ceiling material of the present invention is vinyl chloride resin, vinyl chloride copolymer resin, olefin resin, olefin copolymer resin, urethane resin, urethane. Copolymer resin, acrylic resin, acrylic copolymer resin, vinyl acetate resin, vinyl acetate copolymer resin, styrene resin, styrene copolymer resin, polyester resin, polyester copolymer resin, fluorine-containing These are thermoplastic resins such as copolymer resins, silicone resins, silicone rubbers, polycarbonates, polyamides, polyethers, polyester amides, polyphenylene sulfides, and polyether esters, and cross-linked products of these thermoplastic resins. From this point of view, silicone resin and silicone rubber are preferable. The formation of the flame retardant resin coating layer is the sum of the front and back surfaces, and is 25 to 150% by mass, particularly 50 to 100% by mass, based on the mass of the woven base material (hybrid woven fabric). If the mass of the flame retardant resin coating layer is less than 25% by mass, the resulting film material may have insufficient shape stability, and if it exceeds 150% by mass, it may not be able to meet the combustion characteristics prescribed in ISO5660Part1. .

本発明の不燃性膜天井材料において難燃樹脂被覆層を形成する成分としての難燃剤は、a).金属リン酸塩、金属有機リン酸塩、リン酸誘導体、ポリリン酸アンモニウム、及びポリリン酸アンモニウム誘導体化合物などのリン原子含有化合物、b).(イソ)シアヌレート系化合物、(イソ)シアヌル酸系化合物、グアニジン系化合物、尿素系化合物、及び、これらの誘導体化合物などの窒素原子含有化合物、c).ケイ素化合物、金属水酸化物、金属酸化物、金属炭酸塩化合物、金属硫酸塩化合物、ホウ酸化合物、及び無機系化合物複合体などの無機系化合物、d).有機ハロゲン化合物から選ばれた1種以上であり、難燃樹脂被覆層を構成する合成樹脂100質量部に対して、10〜150質量部、好ましくは30〜100質量部の配合量である。また、これらの難燃樹脂被覆層に酸化チタン顔料を含むことができる。 The flame retardant as a component for forming the flame retardant resin coating layer in the non-flammable film ceiling material of the present invention is a). Phosphorus atom-containing compounds such as metal phosphates, metal organic phosphates, phosphate derivatives, ammonium polyphosphates, and ammonium polyphosphate derivative compounds, b). Nitrogen-containing compounds such as (iso) cyanurate compounds, (iso) cyanuric acid compounds, guanidine compounds, urea compounds, and derivatives thereof, c). Inorganic compounds such as silicon compounds, metal hydroxides, metal oxides, metal carbonate compounds, metal sulfate compounds, boric acid compounds, and inorganic compound complexes; d). It is 1 or more types chosen from the organic halogen compound, and is 10-150 mass parts with respect to 100 mass parts of synthetic resins which comprise a flame-retardant resin coating layer, Preferably it is a compounding quantity of 30-100 mass parts. Moreover, a titanium oxide pigment can be contained in these flame-retardant resin coating layers.

これらの難燃剤は具体的に、平均粒子径が0.1〜3.0μmの白色微粉末状の窒素原子含有化合物であり、特に、(NH4 PO3nで示される重合度n30〜1200のポリリン酸アンモニウム、及びメラミン樹脂、尿素樹脂、トリアジン樹脂などで表面被覆耐水化したポリリン酸アンモニウム、メラミン変性ポリリン酸アンモニウム、ポリリン酸メラミン、(ポリ)リン酸とメラミン系化合物の複合塩、(ポリ)リン酸とメラミン系化合物の2〜3量体との複合塩、ホスホン酸とメラミン系化合物の複合塩、ホスホン酸とメラミン系化合物の2〜3量体との複合塩、ホスフィン酸とメラミンの複合塩、ホスフィン酸とメラミン系化合物の2〜3量体との複合塩、メラミンシアヌレート、トリエチルイソシアヌレート、メラミン(シアヌル酸アミド)、グアナミン、ベンゾグアナミン、硫酸メラミン、トリメチロールメラミン、シアヌル酸トリエチルエステル、1,3,5−トリアジン、ジシアナミドの3量体(メロン)、ジシアンジアミド、グアニジン、ジメチロール尿素などが挙げられる。 Specifically, these flame retardants are nitrogen atom-containing compounds in the form of fine white powder having an average particle size of 0.1 to 3.0 μm, and in particular, the degree of polymerization n30 to 1200 represented by (NH 4 PO 3 ) n. Ammonium polyphosphate, ammonium polyphosphate surface-resistant with melamine resin, urea resin, triazine resin, etc., melamine-modified ammonium polyphosphate, melamine polyphosphate, (poly) phosphoric acid and melamine-based compound salt, (poly ) Complex salt of phosphoric acid and melamine compound 2-3 trimer, complex salt of phosphonic acid and melamine compound, complex salt of phosphonic acid and melamine compound 2-3 trimer, phosphinic acid and melamine Complex salt, complex salt of phosphinic acid and melamine compound 2-3 trimer, melamine cyanurate, triethyl isocyanurate, melamine (cyanur) Acid amide), guanamine, benzoguanamine, melamine sulfate, trimethylol melamine, triethyl ester of cyanuric acid, 1,3,5-triazine, dicyanamide trimer (melon), dicyandiamide, guanidine, dimethylol urea and the like.

これらの難燃剤は具体的に、平均粒子径が0.1〜3.0μmの白色微粉末状の無機系化合物であり、特に、水酸化アルミニウム、水酸化マグネシウム、塩基性炭酸マグネシウム、ヒドロキシスズ酸亜鉛、酸化スズ水和物などの金属水酸化物、酸化ジルコニウム、酸化モリブデン、酸化アンチモン、ジルコニウム−アンチモン複合酸化物などの金属酸化物、ホウ酸亜鉛、メタホウ酸亜鉛、メタホウ酸バリウム、ホウ酸アルミニウムなどのホウ酸化合物、その他、アルミナ水和物、ゼオライト、ハイドロタルサイト、ヒドロキシアパタイトなどが挙げられる。   Specifically, these flame retardants are white fine powder inorganic compounds having an average particle size of 0.1 to 3.0 μm, and in particular, aluminum hydroxide, magnesium hydroxide, basic magnesium carbonate, hydroxystannic acid Metal hydroxide such as zinc and tin oxide hydrate, metal oxide such as zirconium oxide, molybdenum oxide, antimony oxide, zirconium-antimony composite oxide, zinc borate, zinc metaborate, barium metaborate, aluminum borate And boric acid compounds such as alumina hydrate, zeolite, hydrotalcite, and hydroxyapatite.

これらの難燃剤は具体的に、平均粒子径が0.1〜3.0μmの白色微粉末状の有機ハロゲン化合物であり、特に、デカブロモジフェニル、デカブロモジフェニルオキサイド、ヘキサブロモジフェニルオキサイド、ペンタブロモシクロヘキサン、エチレンビスペンタブロモジフェニル、ヘキサブロモベンゼン、ヘキサブロモシクロドデカン、テトラブロモビスフェノールA、テトラブロモビスフェノールA−ビス(ブロモエチルエーテル)などのビスフェノールA誘導体、テトラブロモフタルイミド、エチレンビステトラブロモフタルイミド、及びエチレンビスペンタブロモフタルイミドなどのフタル酸誘導体、その他、臭素化ポリスチレン、臭素化ポリフェニレンオキサイド、臭素化エポキシ樹脂、臭素化ポリカーボネート、臭素化ポリウレタン、臭素化ポリエステルなどの臭素化高分子化合物、さらに塩素含有率25〜45重量%の低塩素化ポリエチレンまたは低塩素化ポリプロピレン、塩素含有率60重量%以上の高塩素化ポリエチレンまたは高塩素化ポリプロピレンなどの塩素化高分子化合物が挙げられる。   These flame retardants are specifically organic halogen compounds in the form of white fine powder having an average particle size of 0.1 to 3.0 μm, and in particular, decabromodiphenyl, decabromodiphenyl oxide, hexabromodiphenyl oxide, pentabromo Bisphenol A derivatives such as cyclohexane, ethylenebispentabromodiphenyl, hexabromobenzene, hexabromocyclododecane, tetrabromobisphenol A, tetrabromobisphenol A-bis (bromoethyl ether), tetrabromophthalimide, ethylenebistetrabromophthalimide, and Phthalic acid derivatives such as ethylenebispentabromophthalimide, brominated polystyrene, brominated polyphenylene oxide, brominated epoxy resins, brominated polycarbonate, brominated polyurethane Brominated polymer compounds such as tan and brominated polyester, low chlorinated polyethylene or low chlorinated polypropylene having a chlorine content of 25 to 45% by weight, high chlorinated polyethylene or high chlorinated polypropylene having a chlorine content of 60% by weight or more And chlorinated polymer compounds such as

また、難燃樹脂被覆層には光拡散性粒子として、平均粒子径が1〜30μmの乳白色〜透明の、球状または不定形粒子状の無機系化合物、高分子化合物などを、難燃樹脂被覆層を構成する合成樹脂の質量に対して、0.1〜30質量%、好ましくは1〜15質量%含んでいてもよく、これらの光拡散性粒子は例えば、ガラスビーズ、中空ガラスビーズ、ガラス粉、シリカ(酸化ケイ素)、天然雲母粉末、合成雲母粉末、シリコーン樹脂ビーズ、シリコーン樹脂粉末、(架橋)アクリル系樹脂ビーズ、(架橋)アクリル系樹脂粉末、(架橋)ポリスチレン系樹脂ビーズ、(架橋)ポリスチレン系樹脂粉末、(高密度)ポリエチレン系樹脂ビーズ、(高密度)ポリエチレン系樹脂粉末、エポキシ樹脂ビーズ、エポキシ樹脂粉末、ベンゾグアナミン樹脂ビーズ、ベンゾグアナミン樹脂粉末などである。   In addition, the flame retardant resin coating layer is coated with a light-diffusing particle, such as a milky white to transparent, spherical or amorphous particulate inorganic compound or polymer compound having an average particle size of 1 to 30 μm. The light diffusing particles may be, for example, glass beads, hollow glass beads, glass powders, and may be contained in an amount of 0.1 to 30% by mass, preferably 1 to 15% by mass with respect to the mass of the synthetic resin constituting , Silica (silicon oxide), natural mica powder, synthetic mica powder, silicone resin beads, silicone resin powder, (crosslinked) acrylic resin beads, (crosslinked) acrylic resin powder, (crosslinked) polystyrene resin beads, (crosslinked) Polystyrene resin powder, (high density) polyethylene resin beads, (high density) polyethylene resin powder, epoxy resin beads, epoxy resin powder, benzoguanamine Beads fat, benzoguanamine resin powder and the like.

本発明の不燃性膜天井材料において難燃樹脂被覆層には必要に応じて公知の添加剤を含んでいても良い。添加剤としては、例えば、帯電防止剤、可塑剤、軟化剤、充填剤、接着剤、架橋剤、紫外線吸収剤、酸化防止剤、安定剤、抗菌剤、防黴剤、着色剤、蛍光増白剤、蛍光顔料、蓄光顔料などが挙げられる。 In the nonflammable film ceiling material of the present invention, the flame retardant resin coating layer may contain a known additive as required. Additives include, for example, antistatic agents, plasticizers, softeners, fillers, adhesives, crosslinking agents, UV absorbers, antioxidants, stabilizers, antibacterial agents, antifungal agents, colorants, fluorescent whitening Agents, fluorescent pigments, phosphorescent pigments and the like.

本発明において混成織物(織物基材)上に被覆する難燃樹脂被覆層の厚さは、一面につき0.01〜0.3mm、好ましくは0.05〜0.2mmで、得られる繊維複合基材の総厚は0.2〜1.0mm、好ましくは0.35〜0.75mmである。繊維複合基材の総厚が1.0mmを越えると、難燃樹脂被覆層の占める割合が増大し、コーンカロリーメーター試験法(ISO5660Part1)による不燃規格を満足できなくなることがある。   In the present invention, the thickness of the flame retardant resin coating layer coated on the hybrid fabric (textile substrate) is 0.01 to 0.3 mm, preferably 0.05 to 0.2 mm per side. The total thickness of the material is 0.2 to 1.0 mm, preferably 0.35 to 0.75 mm. When the total thickness of the fiber composite substrate exceeds 1.0 mm, the ratio of the flame retardant resin coating layer increases, and the non-combustibility standard according to the corn calorimeter test method (ISO 5660 Part 1) may not be satisfied.

本発明において難燃樹脂被覆層を混成織物(織物基材)上に設ける方法としては、例えば、有機溶剤に分散させた樹脂組成物、樹脂エマルジョン(ラテックス)による樹脂組成物、水への強制分散樹脂による樹脂組成物、軟質ポリ塩化ビニル樹脂を主体とするペーストゾルによる樹脂組成物、熱硬化性樹脂を主体とする樹脂組成物などを用いて、公知の塗工方法、例えばディッピング(布帛への両面加工)、コーティング(布帛への片面加工、または両面加工)などの含浸(混成織物内部に樹脂組成物が含浸しているが、混成織物表面には樹脂組成物による被覆層が形成されていない状態)、及び含浸被覆(混成織物内部に樹脂組成物が含浸し、かつ、混成織物表面に樹脂組成物による被覆層が形成される状態で、これによって難燃樹脂被覆層が混成織物とより強固に接着される)が例示できる。また織物基材(混成織物)上に、カレンダー成型、Tダイス押出法により成形した樹脂組成物からなる0.01〜0.3mm、好ましくは0.05〜0.2mmのフィルム又はシートを、接着剤を介して、あるいは熱ラミネートにより積層する方法、及びこれらの塗工と積層の組み合わせが例示できる。   Examples of the method for providing the flame retardant resin coating layer on the hybrid woven fabric (textile base material) in the present invention include, for example, a resin composition dispersed in an organic solvent, a resin composition using a resin emulsion (latex), and forced dispersion in water. Resin composition by resin, resin composition by paste sol mainly composed of soft polyvinyl chloride resin, resin composition mainly composed of thermosetting resin, etc., using known coating methods such as dipping (applied to fabric) The resin composition is impregnated inside the hybrid fabric, such as double-sided processing) and coating (single-sided processing or double-sided processing on the fabric), but the coating layer of the resin composition is not formed on the surface of the hybrid fabric State), and impregnated coating (in which the resin composition is impregnated inside the hybrid fabric and a coating layer of the resin composition is formed on the surface of the hybrid fabric. There are more firmly bonded to the composite fabric) can be exemplified. Also, a 0.01 to 0.3 mm, preferably 0.05 to 0.2 mm film or sheet made of a resin composition formed by calender molding or T-die extrusion method is bonded onto a textile substrate (hybrid textile). Examples thereof include a method of laminating via an agent or by heat laminating, and a combination of these coating and laminating.

本発明の不燃性膜天井材料には、難燃樹脂被覆層に印刷を施すことによって、昼夜を通じて外観表示及び透過表示を可能とする。印刷は公知の印刷、例えばグラビア印刷、スクリーン印刷、転写印刷、インクジェット印刷の何れも可能であるが、本発明の不燃性膜材料においては、光透過性及び発色性との観点において、インク塗布量が少ないインクジェット印刷が好ましい。 The nonflammable film ceiling material of the present invention can be displayed externally and transmissively throughout the day and night by printing on the flame retardant resin coating layer. The printing can be any known printing such as gravure printing, screen printing, transfer printing, and ink jet printing. However, in the non-combustible film material of the present invention, the amount of ink applied is from the viewpoint of light transmittance and color developability. Ink jet printing with less ink is preferred.

本発明の不燃性膜天井材料において難燃樹脂被覆層の表面には、光触媒性防汚層を有することができる。光触媒性防汚層に含む光触媒としては、紫外線や可視光を吸収して有機物分解活性を示す物質である。光触媒性物質としては、1)酸化チタン(TiO)、過酸化チタン(ペルオキソチタン酸)、酸化亜鉛(ZnO)、酸化錫(SnO)、チタン酸ストロンチウム(SrTiO)、酸化タングステン(WO)、酸化ビスマス(Bi)、酸化鉄(Fe)、2)上記光触媒性金属酸化物に、金、銀、銅、プラチナ、ロジウム、パラジウム、ルテニウム、イリジウムなどの金属単体およびこれらの金属化合物を助触媒としてドーピングしたもの、3)上記光触媒性金属酸化物に窒素、炭素、硫黄、リン、ホウ素、フッ素をドーピングしたもの、4)上記光触媒性金属酸化物にクロム、ニオブ、マンガン、コバルト、バナジウム、鉄、ニッケル等の遷移金属イオンをドープしたもの、5)上記光触媒性金属酸化物に白金、パラジウム、ロジウムなど貴金属ハロゲン化物を担持させたものから選ばれた1種以上である。本発明において特に光触媒性物質として、硫酸チタニル、塩化チタン、チタンアルコキシドなどのチタン化合物を熱加水分解して得られる酸化チタンゾル、及び酸化チタンゾルのアルカリ中和物として得られる酸化チタン、また水酸化チタン及び、チタン酸化物の超微粒子を過酸化水素などの過酸化物でペルオキソ化して水中に分散したアナターゼ型ペルオキソチタン酸分散液が好ましい。 In the nonflammable film ceiling material of the present invention, a photocatalytic antifouling layer can be provided on the surface of the flame retardant resin coating layer. The photocatalyst contained in the photocatalytic antifouling layer is a substance that absorbs ultraviolet rays and visible light and exhibits organic substance decomposition activity. As photocatalytic substances, 1) titanium oxide (TiO 2 ), titanium peroxide (peroxotitanic acid), zinc oxide (ZnO), tin oxide (SnO 2 ), strontium titanate (SrTiO 3 ), tungsten oxide (WO 3) ), Bismuth oxide (Bi 2 O 3 ), iron oxide (Fe 2 O 3 ), 2) the above photocatalytic metal oxide, simple metals such as gold, silver, copper, platinum, rhodium, palladium, ruthenium, iridium and Those doped with these metal compounds as promoters 3) The photocatalytic metal oxide doped with nitrogen, carbon, sulfur, phosphorus, boron, fluorine 4) The photocatalytic metal oxide chromium, niobium, Doped with transition metal ions such as manganese, cobalt, vanadium, iron, nickel, etc. 5) Platinum on the photocatalytic metal oxide , Palladium, rhodium, or the like loaded with a noble metal halide. In the present invention, as a photocatalytic substance, titanium oxide sol obtained by thermally hydrolyzing a titanium compound such as titanyl sulfate, titanium chloride, titanium alkoxide, and titanium oxide or titanium hydroxide obtained as an alkali neutralized product of titanium oxide sol And anatase type peroxotitanic acid dispersion liquid in which ultrafine titanium oxide particles are peroxylated with a peroxide such as hydrogen peroxide and dispersed in water is preferable.

本発明の不燃性膜天井材料はコーンカロリーメーター試験法(ISO5660Part1)において、不燃性膜天井材料(光拡散透過性シート)に対して輻射電気ヒ−タ−による輻射熱を、50kW/mで照射した時に、加熱開始後20分間の総発熱量が8MJ/m以下であり、且つ加熱開始後20分間、10秒以上継続して最高発熱速度が200kW/mを超えない燃焼特性を満たすものである。このような不燃要件を満足する不燃性膜天井材料(光拡散透過性シート)は具体的に、ガラス繊維糸条を織物基材の主構成成分とし、このガラス繊維糸条を経糸及び緯糸とする空隙率0%の織物基材の片面以上に、シリコーン樹脂を主体とする難燃樹脂被覆層が設けられてなる光拡散透過性積層体であって、織物基材が経糸及び緯糸の一部に副構成成分として炭素繊維糸条を格子状に配置して含む混成織物であり、炭素繊維糸条の配置率が混成織物の平米単位質量当たり7.5質量%、炭素繊維糸条同士の配置間隔を10mmの等間隔とするものである。不燃性膜天井材料(光拡散透過性シート)には、炭素繊維糸条を光不透過性物質として、混成織物の平米単位質量当たり1〜18質量%含有するものである。従って本発明の不燃性膜天井材料は部分的に光不透過性物質を含み、可視光透過率(JIS−Z8722)が30〜70%であることが好ましい。特にガラス繊維糸条(屈折率1.558)を織物基材の主構成成分とする混成織物を用い、難燃樹脂被覆層をガラス繊維糸条と同等の屈折率で設け、互いの屈折率(JIS K 7142)の差を0.03以内とすることでガラス繊維糸条の目視外観透明化を図った場合に限っては、その可視光透過率70〜95%を得ることが可能である。 The nonflammable membrane ceiling material of the present invention is irradiated with radiant heat from a radiant electric heater at 50 kW / m 2 to the nonflammable membrane ceiling material (light diffusive transparent sheet) in the cone calorimeter test method (ISO5660Part1). When the heating is started, the total calorific value for 20 minutes after starting heating is 8 MJ / m 2 or less, and 20 minutes after starting heating, continuing for 10 seconds or more and satisfying the combustion characteristics where the maximum heating rate does not exceed 200 kW / m 2 It is. Specifically, the non-combustible membrane ceiling material (light diffusive permeable sheet) satisfying such non-combustible requirements has glass fiber yarn as the main constituent of the woven fabric base material, and this glass fiber yarn as the warp and weft. A light diffusive transparent laminate in which a flame retardant resin coating layer mainly composed of a silicone resin is provided on one side or more of a woven fabric base material having a porosity of 0%, wherein the woven base material is a part of the warp and the weft. It is a hybrid fabric containing carbon fiber yarns arranged in a lattice as a sub-component, and the carbon fiber yarn placement rate is 7.5% by mass per square meter of the hybrid fabric, and the spacing between the carbon fiber yarns Are set at equal intervals of 10 mm. The nonflammable film ceiling material (light diffusive and permeable sheet) contains 1 to 18% by mass of carbon fiber yarn as a light-impermeable substance per square meter unit mass of the hybrid fabric. Therefore, it is preferable that the nonflammable film ceiling material of the present invention partially contains a light-impermeable substance and has a visible light transmittance (JIS-Z8722) of 30 to 70%. In particular, a hybrid woven fabric having a glass fiber yarn (refractive index of 1.558) as a main component of the woven fabric base material is provided with a flame retardant resin coating layer having a refractive index equivalent to that of the glass fiber yarn, and the mutual refractive index ( The visible light transmittance of 70 to 95% can be obtained only when the visual appearance of the glass fiber yarn is made transparent by making the difference of JIS K 7142) within 0.03.

本発明の不燃性膜天井材料に関して図1の不燃性膜天井材料を一例として説明する。図1の不燃性膜天井材料(1)は、混成織物(2)を基材として、その表裏に難燃樹脂被覆層(3)を形成してなる光拡散透過性積層体の一例である。例示は省略するが難燃樹脂被覆層(3)の形成は混成織物(2)の表面のみ、または裏面のみであってもよい。図2は混成織物(2)をより詳しく例示するものでその一例である。混成織物(2)は無機繊維糸条(経)(2−1−1、及び無機繊維糸条(緯)(2−1−2)とし、これらを隙間無く配置し、その一部を炭素繊維高弾性率糸条(緯)(2−2−2)に置換して平織してなる横ストライプ配置の混成織物である。図3及び4は、混成織物(2)として、無機繊維糸条(経)(2−1−1、及び無機繊維糸条(緯)(2−1−2)とし、これらを隙間無く配置し、その一部を炭素繊維高弾性率糸条(経)(2−2−1)及び炭素繊維高弾性率糸条(緯)(2−2−2)に置換して平織してなる格子配置の混成織物である。また特に、図2において炭素繊維高弾性率糸条(緯)(2−2−2)は2本引揃配置、また図3及び4において、炭素繊維高弾性率糸条(経)(2−2−1)及び炭素繊維高弾性率糸条(緯)(2−2−2)は2本引揃配置であってもよい。 It described as an example non-flammable film ceiling material of FIG. 1 with respect to non-combustible film ceiling material of the present invention. The nonflammable membrane ceiling material (1) in FIG. 1 is an example of a light diffusive transparent laminate formed by forming a flame retardant resin coating layer (3) on the front and back of a hybrid fabric (2). Although illustration is omitted, the formation of the flame retardant resin coating layer (3) may be performed only on the front surface or the back surface of the hybrid fabric (2). FIG. 2 illustrates the hybrid fabric (2) in more detail and is an example thereof. The hybrid woven fabric (2) is inorganic fiber yarn (warp) (2-1-1 and inorganic fiber yarn (weft) (2-1-2), and these are arranged without gaps, and a part thereof is carbon fiber. This is a hybrid woven fabric having a horizontal stripe arrangement in which a high elastic modulus yarn (weft) (2-2-2) is substituted for plain weaving, and FIGS. Warp) (2-1-1, and inorganic fiber yarn (weft) (2-1-2), these are arranged without gaps, and a part thereof is a carbon fiber high modulus yarn (warp) (2- 2-1) and the hybrid fabric grid arrangement formed by plain weave substituted on carbon fiber high modulus yarn (weft) (2-2-2). in particular, carbon fiber high modulus yarn 2 The line (weft) (2-2-2) is a two-draw arrangement, and in FIGS. 3 and 4, the carbon fiber high modulus yarn (warp) (2-2-1) and the carbon fiber high modulus yarn (Latitude (2-2-2) may be two 引揃 arrangement.

以下、本発明について実施例を挙げて具体的に説明するが、本発明はこれらに限定されるものではない。先ずは本発明の不燃性膜天井材料の評価方法を述べる。
〈可視光透過率〉
膜材の可視光透過率を、分光側色計CM−3600d(コニカミノルタ(株)製)を使用し、JIS−Z8722に従って測定した。
〈燃焼試験〉(ASTM−E1354:コーンカロリーメーター試験法)
輻射電気ヒーターによる50kW/mの輻射熱を膜材面に20分間照射し、この発熱性試験において、20分間の総発熱量と発熱速度を測定し、試験後の膜材外観を観察した。
(a)総発熱量:8MJ/m以下のものを適合とした。
(b)発熱速度:10秒以上継続して200kW/mを超えないものを適合とした。
(c)外観観察:直径0.5mmを超えるピンホール陥没痕の発生がないものを適合と
した。
〈引裂伝播防止性〉
膜材をφ300mmの金属製円形枠に緊張状態で機械的に固定したものを高さ20cmの位置に水平に置き、膜材を固定装着した金属製円形枠の中央部を目掛けて突起体が自由落下する装置を用いて不燃性膜材料の引裂伝播防止性を評価した。突起体は先端が90°の円錐とφ50mm×長さ50mmの円柱を組み合わせたスチール製の先端部を有し、この先端部にφ12mm×長さ120cmのスチール製のロッドが取り付けられた、質量3.75kgの槍状体である。この槍状体の先端部と膜材を装着した金属製円形枠の中央部とを結ぶ距離を落下距離として、50cm、75cm、100cmの落下距離による落下貫通試験を行い、その引裂け状態を観察し、さらに引裂長を求めた。引裂長は突起体が貫通し、突起体径50mmを越えるものは引裂伝播防止性を有さないものと判断した。
EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated concretely, this invention is not limited to these. First, a method for evaluating the nonflammable film ceiling material of the present invention will be described.
<Visible light transmittance>
The visible light transmittance of the film material was measured according to JIS-Z8722 using a spectroscopic color meter CM-3600d (manufactured by Konica Minolta Co., Ltd.).
<Combustion test> (ASTM-E1354: Corn calorimeter test method)
The surface of the film material was irradiated with 50 kW / m 2 of radiant heat from a radiant electric heater for 20 minutes. In this exothermic test, the total heat generation amount and the heat generation rate for 20 minutes were measured, and the appearance of the film material after the test was observed.
(A) Total calorific value: 8 MJ / m 2 or less was regarded as suitable.
(B) heating speed: 10 seconds or more continuously to the Relevant not exceed 200 kW / m 2.
(C) Appearance observation: Applicable to those with no pinhole depression exceeding 0.5 mm in diameter.
<Tear propagation prevention>
A membrane material fixed mechanically in a φ300 mm metal circular frame in a tensioned state is placed horizontally at a position of 20 cm in height, and a projection is formed at the center of the metal circular frame on which the membrane material is fixedly mounted. Using a free-falling device, the tear propagation resistance of non-combustible film materials was evaluated. The protrusion has a steel tip combined with a cone having a tip of 90 ° and a cylinder of φ50 mm × length 50 mm, and a steel rod of φ12 mm × length 120 cm is attached to the tip, mass 3 .75 kg rod-shaped body. A drop piercing test was conducted with a drop distance of 50 cm, 75 cm, and 100 cm, and the tearing state was observed, with the distance connecting the tip of the rod-like body and the center of the metal circular frame fitted with the film material as the drop distance. Further, the tear length was determined. As for the tear length, it was judged that the protrusion penetrated and the protrusion diameter exceeded 50 mm had no tear propagation preventing property.

参考例1〕
〈混成織物1〉
ガラス繊維糸条を織物基材の主構成成分とし、このガラス繊維糸条を経糸及び緯糸とする空隙率0%の平織物で、経糸及び緯糸の一部に副構成成分として炭素繊維糸条を格子状に配置して含み、炭素繊維糸条の配置率を平米単位質量当たり5.9質量%、炭素繊維糸条同士の配置間隔を10mmの等間隔とする質量200g/mの混成織物1を用いた。ガラス繊維糸条は、マルチフィラメント束(750dtex)で、その打ち込み密度が、たて(経糸)40本/インチ:よこ(緯糸)30本/インチ:経糸と緯糸との織交点に生じる空隙の和0%である。また炭素繊維糸条は、マルチフィラメント束(1111dtex)で、その打ち込みが、経糸1本目、16本目、31本目、46本目・・・のような炭素繊維糸条と炭素繊維糸条との間に14本のガラス繊維糸条を含む経糸配置、及び緯糸1本目、12本目、23本目、34本目・・・のような炭素繊維糸条と炭素繊維糸条との間に10本のガラス繊維糸条を含む緯糸配置である。
〈難燃樹脂被覆層〉
難燃樹脂被覆層形成用に下記配合1の軟質塩化ビニル樹脂ペースト組成物を用いた。この配合1のペーストを混成織物の幅方向に均一に垂らし、ドクターブレードによる圧着部を通過させて、混成織物の片表面に配合1のペーストによる濡塗膜を均一に形成し、180℃×3分間電気炉加熱してゲル化処理を行い、混成織物の片表面に難燃樹脂被覆層が設けられた膜材を得た。難燃樹脂被覆層の一部は混成織物の内部に含浸状態で形成され、これによって難燃樹脂被覆層が混成織物と接着されていた。得られた膜材料の質量は380g/mであった。
<配合1>
乳化重合ポリ塩化ビニル樹脂(重合度1700) 100質量部
フタル酸ジオクチル(可塑剤) 40質量部
リン酸トリクレジル(可塑剤) 40質量部
酸化アンチモン(難燃剤) 15質量部
酸化モリブデン(難燃剤) 5質量部
酸化チタン(着色剤) 5質量部
メラミンシアヌレート 10質量部
(日産化学(株)製 難燃剤:商品名MC-640)
ステアリン酸亜鉛(安定剤) 2質量部
ステアリン酸バリウム(安定剤) 2質量部
[ Reference Example 1]
<Hybrid fabric 1>
A plain woven fabric with a porosity of 0% with the glass fiber yarn as the main component of the woven fabric base material and the glass fiber yarn as the warp and weft. The carbon fiber yarn is used as a sub-component in a part of the warp and weft. A composite fabric 1 having a mass of 200 g / m 2 and including an arrangement rate of carbon fiber yarns of 5.9% by mass per square meter of unit mass, and an arrangement interval of carbon fiber yarns of 10 mm. Was used. The glass fiber yarn is a multifilament bundle (750 dtex), and the driving density is warp (warp) 40 pieces / inch: weft (weft) 30 pieces / inch: sum of voids generated at the intersection of warp and weft 0%. The carbon fiber yarn is a multifilament bundle (1111 dtex), and the driving is between the carbon fiber yarn and the carbon fiber yarn such as the 1st, 16th, 31st, 46th ... 10 glass fiber yarns between carbon fiber yarns such as warp arrangement including 14 glass fiber yarns, and carbon fiber yarns such as 1st, 12th, 23rd, 34th ... It is a weft arrangement including a strip.
<Flame retardant resin coating layer>
A soft vinyl chloride resin paste composition of the following formulation 1 was used for forming the flame retardant resin coating layer. The paste of compound 1 is uniformly hung in the width direction of the hybrid fabric, and is passed through a crimping part by a doctor blade, so that a wet coating film of the paste of compound 1 is uniformly formed on one surface of the compound fabric, 180 ° C. × 3 Gelation treatment was performed by heating in an electric furnace for a minute to obtain a film material in which a flame retardant resin coating layer was provided on one surface of a hybrid fabric. A part of the flame retardant resin coating layer was formed in the hybrid fabric in an impregnated state, whereby the flame retardant resin coating layer was bonded to the hybrid fabric. The mass of the obtained film material was 380 g / m 2 .
<Formulation 1>
Emulsion polymerization polyvinyl chloride resin (degree of polymerization 1700) 100 parts by weight Dioctyl phthalate (plasticizer) 40 parts by weight Tricresyl phosphate (plasticizer) 40 parts by weight Antimony oxide (flame retardant) 15 parts by weight Molybdenum oxide (flame retardant) 5 Part by mass Titanium oxide (colorant) 5 parts by mass Melamine cyanurate 10 parts by mass (Flame retardant manufactured by Nissan Chemical Co., Ltd .: trade name MC-640)
Zinc stearate (stabilizer) 2 parts by weight Barium stearate (stabilizer) 2 parts by weight

参考例2〕
参考例1の混成織物1を混成織物2に変更した以外は参考例1と同様にして、混成織物2の片面に難燃樹脂被覆層を有する380g/mの膜材を得た。
〈混成織物2〉
ガラス繊維糸条を織物基材の主構成成分とし、このガラス繊維糸条を経糸及び緯糸とする空隙率0%の平織物で、経糸及び緯糸の一部に副構成成分として炭素繊維糸条を格子状に配置して含み、炭素繊維糸条の配置率を平米単位質量当たり5.9質量%、炭素繊維糸条が2本引揃で、2本引揃の炭素繊維糸条同士の配置間隔を20mmの等間隔とする質量200g/mの混成織物2を用いた。ガラス繊維糸条は、マルチフィラメント束(750dtex)で、その打ち込み密度が、たて(経糸)40本/インチ:よこ(緯糸)30本/インチ:経糸と緯糸との織交点に生じる空隙の和0%である。また炭素繊維糸条は、マルチフィラメント束(1111dtex)で、その打ち込みが、経糸〔1本目・2本目〕、〔32本目・33本目〕、〔63本目・64本目〕、・・・のような炭素繊維糸条と炭素繊維糸条との間に29本のガラス繊維糸条を含む経糸配置、及び緯糸〔1本目・2本目〕、〔25本目・26本目〕、〔49本目・50本目〕、・・・のような炭素繊維糸条と炭素繊維糸条との間に22本のガラス繊維糸条を含む緯糸配置である。
[ Reference Example 2]
A membrane material of 380 g / m 2 having a flame retardant resin coating layer on one side of the hybrid fabric 2 was obtained in the same manner as in Reference Example 1 except that the hybrid fabric 1 of Reference Example 1 was changed to the hybrid fabric 2.
<Hybrid fabric 2>
A plain woven fabric with a porosity of 0% with the glass fiber yarn as the main component of the woven fabric base material and the glass fiber yarn as the warp and weft. The carbon fiber yarn is used as a sub-component in a part of the warp and weft. Arrangement rate of carbon fiber yarns is 5.9% by mass per square meter, two carbon fiber yarns are aligned, and the spacing between two carbon fiber yarns is as follows. The hybrid fabric 2 having a mass of 200 g / m 2 with an equal interval of 20 mm was used. The glass fiber yarn is a multifilament bundle (750 dtex), and the driving density is warp (warp) 40 pieces / inch: weft (weft) 30 pieces / inch: sum of voids generated at the intersection of warp and weft 0%. Also, the carbon fiber yarn is a multifilament bundle (1111 dtex), and its driving is like warps [first and second], [32 and 33], [63 and 64], etc. Arrangement of warps including 29 glass fiber yarns between carbon fiber yarns and carbon fiber yarns, and wefts [1st and 2nd], [25th and 26th], [49th and 50th] A weft arrangement including 22 glass fiber yarns between the carbon fiber yarns and the carbon fiber yarns.

〔実施例3〕
参考例1の混成織物1を混成織物3に変更した以外は参考例1と同様として、混成織物3の片面に難燃樹脂被覆層を有する440g/mの膜材を得た。得られた膜材の表面外観からは格子状に配置された炭素繊維糸条の存在が識別しにくいものであった。
〈混成織物3〉
参考例1の混成織物1の両面に、酸化チタンを含む着色層(配合2)を60g/m形成した。この配合2のペーストを充填した液浴に混成織物1を浸漬し、これを引き上げると同時にマングルロールで圧搾し、余分な塗工液を除去した後に、180℃×3分間電気炉加熱してゲル化処理を行い、混成織物1の両面に着色隠蔽層が設けられた混成織物3を得た。
<配合2>
乳化重合ポリ塩化ビニル樹脂(重合度1700) 100質量部
フタル酸ジオクチル(可塑剤) 40質量部
リン酸トリクレジル(可塑剤) 40質量部
酸化アンチモン(難燃剤) 15質量部
酸化モリブデン(難燃剤) 5質量部
酸化チタン(着色剤) 20質量部
ステアリン酸亜鉛(安定剤) 2質量部
ステアリン酸バリウム(安定剤) 2質量部
Example 3
A membrane material of 440 g / m 2 having a flame retardant resin coating layer on one side of the hybrid fabric 3 was obtained in the same manner as in Reference Example 1 except that the hybrid fabric 1 of Reference Example 1 was changed to the hybrid fabric 3. From the surface appearance of the obtained film material, it was difficult to identify the presence of carbon fiber yarns arranged in a lattice pattern.
<Hybrid woven fabric 3>
A colored layer (compound 2) containing titanium oxide was formed on both surfaces of the hybrid fabric 1 of Reference Example 1 at 60 g / m 2 . The hybrid fabric 1 is immersed in a liquid bath filled with the paste of Formulation 2, and is pulled up and simultaneously pressed with a mangle roll to remove excess coating liquid, and then heated in an electric furnace at 180 ° C. for 3 minutes to gel. Then, a hybrid fabric 3 in which a colored hiding layer was provided on both surfaces of the hybrid fabric 1 was obtained.
<Formulation 2>
Emulsion polymerization polyvinyl chloride resin (degree of polymerization 1700) 100 parts by weight Dioctyl phthalate (plasticizer) 40 parts by weight Tricresyl phosphate (plasticizer) 40 parts by weight Antimony oxide (flame retardant) 15 parts by weight Molybdenum oxide (flame retardant) 5 Parts by mass titanium oxide (colorant) 20 parts by mass zinc stearate (stabilizer) 2 parts by mass barium stearate (stabilizer) 2 parts by mass

〔実施例4〕
参考例2の混成織物2を混成織物4に変更した以外は参考例2と同様として、混成織物4の片面に難燃樹脂被覆層を有する440g/mの膜材を得た。得られた膜材の表面外観からは格子状に配置された炭素繊維糸条の存在が識別しにくいものであった。
〈混成織物4〉
参考例2の混成織物2の両面に、酸化チタンを含む着色層(配合2)を60g/m形成した。この配合2のペーストを充填した液浴に混成織物2を浸漬し、これを引き上げると同時にマングルロールで圧搾し、余分な塗工液を除去した後に、180℃×3分間電気炉加熱してゲル化処理を行い、混成織物2の両面に着色隠蔽層が設けられた混成織物4を得た。
Example 4
A membrane material of 440 g / m 2 having a flame retardant resin coating layer on one side of the hybrid fabric 4 was obtained in the same manner as in Reference Example 2 except that the hybrid fabric 2 of Reference Example 2 was changed to the hybrid fabric 4. From the surface appearance of the obtained film material, it was difficult to identify the presence of carbon fiber yarns arranged in a lattice pattern.
<Hybrid woven fabric 4>
A colored layer (formulation 2) containing titanium oxide was formed on both surfaces of the hybrid fabric 2 of Reference Example 2 at 60 g / m 2 . The hybrid fabric 2 is dipped in a liquid bath filled with the paste of Formulation 2, and is pulled up and simultaneously pressed with a mangle roll to remove excess coating liquid, and then heated in an electric furnace at 180 ° C. for 3 minutes to gel. The composite fabric 4 in which the colored concealment layers were provided on both surfaces of the composite fabric 2 was obtained.

参考例5〕
参考例1の難燃樹脂被覆層の配合1を配合3に変更した以外は参考例1と同様として、混成織物1の片面に難燃樹脂被覆層を有する360g/mの膜材を得た。
<配合3>
商標:シラスコンRTV4086A
(2液付加反応硬化型シリコーン樹脂:有効成分100%:ダウコーニングアジア社製)
50質量部
商標:シラスコンRTV4086B
(2液付加反応硬化型シリコーン樹脂:有効成分100%:ダウコーニングアジア社製)
50質量部
水酸化マグネシウム(難燃剤) 20質量部
ハイドロタルサイト(難燃剤) 5質量部
酸化チタン(着色剤) 5質量部
トルエン/メチルエチルケトン(1:1)希釈剤 100質量部
[ Reference Example 5]
As except for changing the formulation 1 of the flame-retardant resin coating layer of Example 1 to the formulation 3 the same manner as in Reference Example 1 to obtain a film material of 360 g / m 2 having a flame retardant resin coating layer on one side of the hybrid fabric 1 .
<Formulation 3>
Trademark: Shirasukon RTV4086A
(2-component addition reaction curable silicone resin: active ingredient 100%: manufactured by Dow Corning Asia)
50 parts by mass Trademark: Shirasukon RTV4086B
(2-component addition reaction curable silicone resin: active ingredient 100%: manufactured by Dow Corning Asia)
50 parts by weight Magnesium hydroxide (flame retardant) 20 parts by weight Hydrotalcite (flame retardant) 5 parts by weight Titanium oxide (colorant) 5 parts by weight Toluene / methyl ethyl ketone (1: 1) diluent 100 parts by weight

〔実施例6〕
参考例3の混成織物3を混成織物5に変更した以外は参考例1と同様として、混成織物5の片面に難燃樹脂被覆層を有する420g/mの膜材を得た。得られた膜材の表面外観からは格子状に配置された炭素繊維糸条の存在が識別しにくいものであった。
〈混成織物5〉
参考例1の混成織物1の両面に、酸化チタンを含む着色層(配合3)を40g/m形成した。この配合3のペーストを充填した液浴に混成織物1を浸漬し、これを引き上げると同時にマングルロールで圧搾し、余分な塗工液を除去した後に、180℃×3分間電気炉加熱して固化処理を行い、混成織物1の両面に着色隠蔽層が設けられた混成織物5を得た。
<配合3>
商標:シラスコンRTV4086A
(2液付加反応硬化型シリコーン樹脂:有効成分100%:ダウコーニングアジア社製)
50質量部
商標:シラスコンRTV4086B
(2液付加反応硬化型シリコーン樹脂:有効成分100%:ダウコーニングアジア社製)
50質量部
水酸化マグネシウム(難燃剤) 20質量部
酸化チタン(着色剤) 20質量部
トルエン/メチルエチルケトン(1:1)希釈剤 100質量部
Example 6
A membrane material of 420 g / m 2 having a flame retardant resin coating layer on one side of the hybrid fabric 5 was obtained in the same manner as in Reference Example 1 except that the hybrid fabric 3 of Reference Example 3 was changed to the hybrid fabric 5. From the surface appearance of the obtained film material, it was difficult to identify the presence of carbon fiber yarns arranged in a lattice pattern.
<Hybrid fabric 5>
A colored layer (formulation 3) containing titanium oxide was formed on both surfaces of the hybrid fabric 1 of Reference Example 1 by 40 g / m 2 . The composite fabric 1 is immersed in a liquid bath filled with the paste of Formulation 3 and pulled up, and simultaneously pressed with a mangle roll to remove excess coating liquid, and then solidified by heating in an electric furnace at 180 ° C. for 3 minutes. Processing was performed to obtain a hybrid fabric 5 in which a colored hiding layer was provided on both surfaces of the hybrid fabric 1.
<Formulation 3>
Trademark: Shirasukon RTV4086A
(2-component addition reaction curable silicone resin: active ingredient 100%: manufactured by Dow Corning Asia)
50 parts by mass Trademark: Shirasukon RTV4086B
(2-component addition reaction curable silicone resin: active ingredient 100%: manufactured by Dow Corning Asia)
50 parts by weight Magnesium hydroxide (flame retardant) 20 parts by weight Titanium oxide (colorant) 20 parts by weight Toluene / methyl ethyl ketone (1: 1) diluent 100 parts by weight

参考例7〕
参考例1の混成織物1を混成織物6に変更した以外は参考例1と同様にして、混成織物6の片面に難燃樹脂被覆層を有する400g/mの膜材を得た。
〈混成織物6〉
ガラス繊維糸条を織物基材の主構成成分とし、このガラス繊維糸条を経糸及び緯糸とする空隙率0%の平織物で、経糸及び緯糸の一部に副構成成分としてステンレス鋼糸条を格子状に配置して含み、ステンレス鋼糸条の配置率を平米単位質量当たり11.5質量%、ステンレス鋼糸条同士の配置間隔を20mmの等間隔とする質量220g/mの混成織物6を用いた。ガラス繊維糸条は、マルチフィラメント束(750dtex)で、その打ち込み密度が、たて(経糸)40本/インチ:よこ(緯糸)30本/インチ:経糸と緯糸との織交点に生じる空隙の和0%である。またステンレス鋼糸条は、マルチフィラメント束(1111dtex)で、その打ち込みが、経糸1本目、30本目、59本目、88本目・・・のようなステンレス鋼糸条とステンレス鋼糸条との間に28本のガラス繊維糸条を含む経糸配置、及び緯糸1本目、22本目、43本目、64本目・・・のようなステンレス鋼糸条とステンレス鋼糸条との間に20本のガラス繊維糸条を含む緯糸配置である。
[ Reference Example 7]
A 400 g / m 2 membrane material having a flame retardant resin coating layer on one side of the hybrid fabric 6 was obtained in the same manner as in Reference Example 1 except that the hybrid fabric 1 of Reference Example 1 was changed to the hybrid fabric 6.
<Hybrid fabric 6>
Glass fiber yarn is the main component of the woven fabric base material, and this glass fiber yarn is used as a warp and weft plain fabric with a porosity of 0%. Stainless steel yarn is used as a sub-component of warp and weft. Mixed woven fabric 6 having a mass of 220 g / m 2 including an arrangement ratio of stainless steel yarns of 11.5% by mass per square meter and an interval between stainless steel yarns of 20 mm. Was used. The glass fiber yarn is a multifilament bundle (750 dtex), and the driving density is warp (warp) 40 pieces / inch: weft (weft) 30 pieces / inch: sum of voids generated at the intersection of warp and weft 0%. The stainless steel thread is a multifilament bundle (1111 dtex), and the driving is between the stainless steel thread such as the first, thirty, 59th, 88th ... Warp arrangement including 28 glass fiber yarns, and 20 glass fiber yarns between stainless steel yarns such as 1st, 22nd, 43rd, 64th ... It is a weft arrangement including a strip.

参考例8〕
参考例1の混成織物1を混成織物7に変更した以外は参考例1と同様にして、混成織物7の片面に難燃樹脂被覆層を有する400g/mの膜材を得た。
〈混成織物7〉
ガラス繊維糸条を織物基材の主構成成分とし、このガラス繊維糸条を経糸及び緯糸とする空隙率0%の平織物で、経糸及び緯糸の一部に副構成成分として炭素鋼糸条を格子状に配置して含み、炭素鋼糸条の配置率を平米単位質量当たり11.5質量%、炭素鋼糸条同士の配置間隔を20mmの等間隔とする質量220g/mの混成織物7を用いた。ガラス繊維糸条は、マルチフィラメント束(750dtex)で、その打ち込み密度が、たて(経糸)40本/インチ:よこ(緯糸)30本/インチ:経糸と緯糸との織交点に生じる空隙の和0%である。また炭素鋼糸条は、直径が0.3mmのピアノ線で、その打ち込みが、経糸1本目、30本目、59本目、88本目・・・のようなピアノ線とピアノ線との間に28本のガラス繊維糸条を含む経糸配置、及び緯糸1本目、22本目、43本目、64本目・・・のようなピアノ線とピアノ線との間に20本のガラス繊維糸条を含む緯糸配置である。
[ Reference Example 8]
A 400 g / m 2 membrane material having a flame retardant resin coating layer on one side of the hybrid fabric 7 was obtained in the same manner as in Reference Example 1 except that the hybrid fabric 1 of Reference Example 1 was changed to the hybrid fabric 7.
<Hybrid fabric 7>
Glass fiber yarn is the main component of the fabric base, and this glass fiber yarn is a plain woven fabric with a void ratio of 0%. The carbon steel yarn is used as a sub-component on part of the warp and weft. Mixed woven fabric 7 having a mass of 220 g / m 2 including an arrangement ratio of carbon steel yarns of 11.5% by mass per square meter and an interval between carbon steel yarns of 20 mm. Was used. The glass fiber yarn is a multifilament bundle (750 dtex), and the driving density is warp (warp) 40 pieces / inch: weft (weft) 30 pieces / inch: sum of voids generated at the intersection of warp and weft 0%. The carbon steel thread is a piano wire having a diameter of 0.3 mm, and the driving is 28 wires between the piano wire and the piano wire, such as the 1st, 30th, 59th, 88th ... In the weft arrangement including the glass fiber yarns and the weft arrangement including the 20 glass fiber yarns between the piano wire and the piano wire, such as the first, the 22nd, the 43rd, the 64th ... is there.

実施例3,4,6、参考例1,2,5,7,8の膜材は、いずれもASTM−E1354:コーンカロリーメーター試験法に適合する不燃性を有し、高弾性率糸条を配置して含む混成織物を用いることで、リップストップ効果により、各々格子サイズ(高弾性率糸条と高弾性率糸条との間隔)に応じて、格子サイズ程度の小さな穴開き、または短い引裂けに留めるなど、優れた引裂伝播防止性を兼備するものであった。また、この高弾性率糸条によるリップストップ効果は、JIS L1096引裂試験C法(トラペゾイド法)において、実施例3,4,6、参考例1,2,5,7の膜材の経緯方向各々での引裂強度の最大値は全て高弾性率糸条の破断値であり、ガラス繊維糸条の破断値の3倍以上を示した。参考例8の膜材では試験片からピアノ線が引き抜かれる程、試験片の引裂強度が極大(ガラス繊維糸条の破断値の8倍以上)となった。以上より、実施例3,4,6、参考例1,2,5,7,8の膜材は、ISO5660Part1に規定の燃焼特性に適合するので国土交通大臣が定めた不燃材料(建設省告示)に適合することができ、しかも物が衝突した時に膜材料に穴が開いたとしても、その引裂伝播防止性を発現して膜材料の裂傷被害を効果的に軽減することができるのである。また、特に実施例3,4,6の膜材は、混成織物の表面に着色隠蔽層を設けたことにより格子状に配置した炭素繊維糸条の存在が目立たない外観を得ることができた。また、参考例1,2,5,7,8の膜材は可視光透過率に優れていた。 The film materials of Examples 3, 4, 6 and Reference Examples 1, 2, 5, 7 , and 8 all have non-flammability conforming to ASTM-E1354: Corn Calorimeter Test Method, and have high elastic modulus yarns. By using a hybrid fabric that is arranged and included, depending on the lattice size (interval between the high elastic modulus yarn and the high elastic modulus yarn), a small perforation or short pulling of the lattice size can be used depending on the lattice size. It also has excellent tear propagation prevention properties, such as fastening to tears. Further, the ripstop effect by the high elastic modulus yarn is obtained in each of the longitudinal directions of the film materials of Examples 3, 4, 6 and Reference Examples 1, 2 , 5, 7 in JIS L1096 tear test C method (trapezoid method). The maximum value of tear strength at is the breaking value of the high elastic modulus yarn, which is at least three times the breaking value of the glass fiber yarn. In the film material of Reference Example 8, the tear strength of the test piece became maximum (8 times or more the breaking value of the glass fiber yarn) as the piano wire was pulled out from the test piece. From the above, the film materials of Examples 3, 4, 6 and Reference Examples 1, 2, 5, 7, and 8 conform to the combustion characteristics specified in ISO 5660 Part 1 and are therefore non-combustible materials determined by the Minister of Land, Infrastructure, Transport and Tourism (Ministry of Construction Notification) In addition, even if a hole is formed in the membrane material when an object collides with it, the tear propagation resistance can be exhibited and the damage to the membrane material can be effectively reduced. In particular, the film materials of Examples 3, 4 and 6 were able to obtain an appearance in which the presence of carbon fiber yarns arranged in a lattice pattern was not conspicuous by providing a colored hiding layer on the surface of the hybrid fabric. The film materials of Reference Examples 1, 2, 5, 7, and 8 were excellent in visible light transmittance.

〔比較例1〕
実施例1の混成織物1を100%ガラス平織物とした以外は実施例1と同様にして、ガラス平織物の片面に難燃樹脂被覆層を有する385g/mの膜材を得た。
〈ガラス平織物〉
ガラス繊維糸条を織物基材の主構成成分とし、このガラス繊維糸条を経糸及び緯糸とする空隙率0%、質量205g/mの平織物を用いた。ガラス繊維糸条は、マルチフィラメント束(750dtex)で、その打ち込み密度は、たて(経糸)40本/インチ:よこ(緯糸)30本/インチである。
[Comparative Example 1]
A film material of 385 g / m 2 having a flame retardant resin coating layer on one side of the glass plain fabric was obtained in the same manner as in Example 1 except that the hybrid fabric 1 of Example 1 was a 100% glass plain fabric.
<Glass plain fabric>
A plain woven fabric having a porosity of 0% and a mass of 205 g / m 2 was used, in which the glass fiber yarn is the main constituent of the woven fabric substrate, and the glass fiber yarn is the warp and weft. The glass fiber yarn is a multifilament bundle (750 dtex), and the driving density is warp (warp) 40 / inch: weft (weft) 30 / inch.

〔比較例2〕
実施例1の混成織物1を混成織物8とした以外は実施例1と同様にして、混成織物8の片面に難燃樹脂被覆層を有する372g/mの膜材を得た。
〈混成織物8〉
ガラス繊維糸条を織物基材の主構成成分とし、このガラス繊維糸条を経糸及び緯糸とする空隙率0%の平織物で、経糸及び緯糸の一部に副構成成分として全芳香族ポリアミド繊維糸条を格子状に配置して含み、全芳香族ポリアミド繊維糸条の配置率を平米単位質量当たり3.86質量%、全芳香族ポリアミド繊維糸条同士の配置間隔を10mmの等間隔とする質量192g/mの混成織物8を用いた。ガラス繊維糸条は、マルチフィラメント束(750dtex)で、その打ち込み密度が、たて(経糸)40本/インチ:よこ(緯糸)30本/インチ:経糸と緯糸との織交点に生じる空隙の和0%である。また全芳香族ポリアミド繊維糸条は、マルチフィラメント束(1111dtex)で、その打ち込みが、経糸1本目、16本目、31本目、46本目・・・のような全芳香族ポリアミド繊維糸条と全芳香族ポリアミド繊維糸条との間に14本のガラス繊維糸条を含む経糸配置、及び緯糸1本目、12本目、23本目、34本目・・・のような全芳香族ポリアミド繊維糸条と全芳香族ポリアミド繊維糸条との間に10本のガラス繊維糸条を含む緯糸配置である。
[Comparative Example 2]
A membrane material of 372 g / m 2 having a flame retardant resin coating layer on one side of the hybrid fabric 8 was obtained in the same manner as in Example 1 except that the hybrid fabric 1 of Example 1 was changed to the hybrid fabric 8.
<Hybrid fabric 8>
A plain woven fabric with a porosity of 0% with the glass fiber yarn as the main constituent of the woven fabric base and the glass fiber yarn as the warp and weft, and a wholly aromatic polyamide fiber as a sub-component in a part of the warp and weft Threads are arranged in a lattice pattern, the arrangement ratio of wholly aromatic polyamide fiber yarns is 3.86% by mass per square meter unit mass, and the interval between all aromatic polyamide fiber yarns is 10 mm. A hybrid fabric 8 having a mass of 192 g / m 2 was used. The glass fiber yarn is a multifilament bundle (750 dtex), and the driving density is warp (warp) 40 pieces / inch: weft (weft) 30 pieces / inch: sum of voids generated at the intersection of warp and weft 0%. Also, the wholly aromatic polyamide fiber yarn is a multifilament bundle (1111 dtex), and the driving is performed with the wholly aromatic polyamide fiber yarn such as the 1st, 16th, 31st, 46th ... Warp arrangement including 14 glass fiber yarns between the aromatic polyamide fiber yarns and wholly aromatic polyamide fiber yarns and aromatics such as the 1st, 12th, 23rd, 34th ... Weft arrangement including 10 glass fiber yarns between the group polyamide fiber yarns.

〔比較例3〕
実施例1の混成織物1を混成織物9とした以外は実施例1と同様にして、混成織物9の片面に難燃樹脂被覆層を有する384g/mの膜材を得た。
〈混成織物9〉
ガラス繊維糸条を織物基材の主構成成分とし、このガラス繊維糸条を経糸及び緯糸とする空隙率0%の平織物で、緯糸の一部に副構成成分として炭素繊維糸条をヨコのストライプ状に配置して含み、炭素繊維糸条の配置率を平米単位質量当たり0.36質量%、炭素繊維糸条同士の配置間隔を100mmの等間隔とする質量204g/mの混成織物9を用いた。ガラス繊維糸条は、マルチフィラメント束(750dtex)で、その打ち込み密度が、たて(経糸)40本/インチ:よこ(緯糸)30本/インチ:経糸と緯糸との織交点に生じる空隙の和0%である。また炭素繊維糸条は、マルチフィラメント束(1111dtex)で、その打ち込みが緯糸1本目、116本目、231本目、346本目・・・のような炭素繊維糸条と炭素繊維糸条との間に114本のガラス繊維糸条を含む緯糸配置である。
[Comparative Example 3]
A membrane material of 384 g / m 2 having a flame retardant resin coating layer on one side of the hybrid fabric 9 was obtained in the same manner as in Example 1 except that the hybrid fabric 1 of Example 1 was changed to the hybrid fabric 9.
<Hybrid fabric 9>
Glass fiber yarn is the main component of the fabric base material, and this glass fiber yarn is a warp and weft plain fabric with a porosity of 0%. Carbon fiber yarn is used as a sub-component of the weft yarn. Mixed fabric 9 having a mass of 204 g / m 2 including carbon fiber yarns arranged in stripes with an arrangement rate of carbon fiber yarns of 0.36% by mass per square meter, and an interval between carbon fiber yarns of 100 mm. Was used. The glass fiber yarn is a multifilament bundle (750 dtex), and the driving density is warp (warp) 40 pieces / inch: weft (weft) 30 pieces / inch: sum of voids generated at the intersection of warp and weft 0%. The carbon fiber yarn is a multifilament bundle (1111 dtex), and the driving is 114 between the carbon fiber yarn such as the first weft, the 116th, the 231st, the 346th, etc. and the carbon fiber yarn. The weft arrangement including the glass fiber yarn of the book.

〔比較例4〕
実施例1の混成織物1を混成織物10とした以外は実施例1と同様にして、混成織物10の片面に難燃樹脂被覆層を有する360g/mの膜材を得た。
〈混成織物10〉
ガラス繊維糸条(750dtexのマルチフィラメント束)を織物基材の主構成成分とし、このガラス繊維糸条を経糸及び緯糸とする空隙率0%の平織物で、経糸及び緯糸の一部に副構成成分として炭素繊維糸条を格子状に配置して含み、炭素繊維糸条の配置率を平米単位質量当たり26.5質量%、炭素繊維糸条同士の配置間隔を3mmの等間隔とする質量180g/mの混成織物10を用いた。また炭素繊維糸条は、マルチフィラメント束(1111dtex)で、その打ち込みが、経糸1本目、5本目、9本目、14本目・・・のような炭素繊維糸条と炭素繊維糸条との間に3本のガラス繊維糸条を含む経糸配置、及び緯糸1本目、5本目、9本目、14本目・・・のような炭素繊維糸条と炭素繊維糸条との間に3本のガラス繊維糸条を含む緯糸配置で、打ち込み密度が、たて(経糸)40本/インチ:よこ(緯糸)40本/インチである。
[Comparative Example 4]
A film material of 360 g / m 2 having a flame retardant resin coating layer on one side of the hybrid fabric 10 was obtained in the same manner as in Example 1 except that the hybrid fabric 1 of Example 1 was changed to the hybrid fabric 10.
<Hybrid fabric 10>
Glass fiber yarn (750 dtex multifilament bundle) is a main component of the woven fabric base material, and this glass fiber yarn is used as a warp and weft for a plain woven fabric with a porosity of 0%. Carbon fiber yarns are arranged in a grid pattern as components, the carbon fiber yarn placement rate is 26.5% by mass per square meter unit mass, and the carbon fiber yarns are placed at a regular interval of 3 mm. A hybrid fabric 10 of / m 2 was used. Further, the carbon fiber yarn is a multifilament bundle (1111 dtex), and the driving is between the carbon fiber yarn such as the first warp, the fifth, the ninth, the fourteenth, etc., and the carbon fiber yarn. Three glass fiber yarns between carbon fiber yarns such as warp arrangement including three glass fiber yarns, and carbon fiber yarns such as 1st, 5th, 9th, 14th ... In a weft arrangement including a line, the driving density is 40 warps / inch: 40 wefts / inch.

〔比較例5〕
実施例1の混成織物1を混成織物11とした以外は実施例1と同様にして、混成織物11の片面に難燃樹脂被覆層を有する365g/mの膜材を得た。
〈混成織物11〉
ガラス繊維糸条を織物基材の主構成成分とし、このガラス繊維糸条を経糸及び緯糸とする空隙率7.5%の平織物で、経糸及び緯糸の一部に副構成成分として炭素繊維糸条を格子状に配置して含み、炭素繊維糸条の配置率を平米単位質量当たり6.2質量%、炭素繊維糸条同士の配置間隔を10mmの等間隔とする質量185g/mの混成織物11を用いた。ガラス繊維糸条は、マルチフィラメント束(750dtex)で、その打ち込み密度が、たて(経糸)37本/インチ:よこ(緯糸)28本/インチ:経糸と緯糸との織交点に生じる空隙の和6%である。また炭素繊維糸条は、マルチフィラメント束(1111dtex)で、その打ち込みが、経糸1本目、16本目、31本目、46本目・・・のような炭素繊維糸条と炭素繊維糸条との間に14本のガラス繊維糸条を含む経糸配置、及び緯糸1本目、12本目、23本目、34本目・・・のような炭素繊維糸条と炭素繊維糸条との間に10本のガラス繊維糸条を含む緯糸配置である。
[Comparative Example 5]
A film material of 365 g / m 2 having a flame retardant resin coating layer on one side of the hybrid fabric 11 was obtained in the same manner as in Example 1 except that the hybrid fabric 1 of Example 1 was changed to the hybrid fabric 11.
<Hybrid fabric 11>
A plain woven fabric with a porosity of 7.5% with the glass fiber yarn as the main constituent of the fabric base and the glass fiber yarn as the warp and weft. The carbon fiber yarn is used as a sub-component of the warp and part of the weft. A composite of a mass of 185 g / m 2 with a carbon fiber yarn placement rate of 6.2% by mass per square meter and carbon fiber yarns arranged at equal intervals of 10 mm. A fabric 11 was used. The glass fiber yarn is a multifilament bundle (750 dtex), and the driving density is 37 warps (warp) / inch: 28 wefts (weft) / inch: the sum of voids generated at the intersection of warp and weft. 6%. The carbon fiber yarn is a multifilament bundle (1111 dtex), and the driving is between the carbon fiber yarn and the carbon fiber yarn such as the 1st, 16th, 31st, 46th ... 10 glass fiber yarns between carbon fiber yarns such as warp arrangement including 14 glass fiber yarns, and carbon fiber yarns such as 1st, 12th, 23rd, 34th ... It is a weft arrangement including a strip.

比較例1の膜材は100%ガラス平織物を基材とする従来の不燃膜材であり、従ってASTM−E1354:コーンカロリーメーター試験法に適合する不燃性を有しても、引裂伝播防止性を兼備するものではなかった。比較例2の膜材は副構成成分として全芳香族ポリアミド繊維糸条を格子状に配置して含むため、引裂伝播防止性を有するものであったが、ASTM−E1354:コーンカロリーメーター試験法に適合する不燃性を兼備するものではなかった。比較例3の膜材は炭素繊維糸条をヨコのストライプ状に配置して含むものであるが、炭素繊維糸条同士の配置間隔が100mmと大きく、炭素繊維糸条の配置率が1質量%以下であるため、効果的な引裂伝播防止性を兼備するものではなかった。比較例4の膜材は副構成成分として炭素繊維糸条を格子状に配置して含み、しかも炭素繊維糸条同士の配置間隔を3mmとするように、炭素繊維糸条の配置率が18質量%を越えるものであるため、極めて引裂伝播防止性に優れ、しかもASTM−E1354:コーンカロリーメーター試験法に適合する不燃性を兼備するものであったが、光線不透過性の炭素繊維糸条を多く配置することにより可視光線透過率が低くなることで、膜材を光にかざした時に内部が薄暗くなる問題を生じた。比較例5の膜材は副構成成分として炭素繊維糸条を格子状に配置して適量を含み、それによって引裂伝播防止性を有するものであったが、混成織物の空隙率が3%を超えることによって、燃焼試験で多数のピンホールを発生し、そこから煙が漏れ出るなど、ASTM−E1354:コーンカロリーメーター試験法に適合することができなかった。つまり比較例1〜5の膜材は何れも、国土交通大臣が定めた不燃材料(建設省告示)に適合することができ、しかも膜材料に衝撃が加えられた時には、優れた引裂伝播抑止効果を兼備するものではなかった。   The film material of Comparative Example 1 is a conventional non-combustible film material based on 100% glass plain woven fabric. Therefore, even if it has non-combustibility conforming to ASTM-E1354: Corn Calorimeter Test Method, it prevents tear propagation. It was not something that combines. Since the membrane material of Comparative Example 2 contains all aromatic polyamide fiber yarns arranged as a sub-component in a lattice shape, it has tear propagation preventing property, but ASTM-E1354: a corn calorimeter test method It did not have suitable noncombustibility. Although the film material of Comparative Example 3 includes carbon fiber yarns arranged in a horizontal stripe shape, the arrangement interval between the carbon fiber yarns is as large as 100 mm, and the arrangement rate of the carbon fiber yarns is 1% by mass or less. Therefore, it did not have an effective tear propagation preventing property. The film material of Comparative Example 4 includes carbon fiber yarns arranged in a lattice pattern as a sub-component, and the carbon fiber yarn placement ratio is 18 mass so that the arrangement interval between the carbon fiber yarns is 3 mm. %, It is extremely excellent in preventing tear propagation, and also has non-flammability compatible with ASTM-E1354: Corn Calorimeter Test Method. By arranging a large amount, the visible light transmittance is lowered, which causes a problem that the interior becomes dim when the film material is held over light. The film material of Comparative Example 5 contained carbon fiber yarns as a sub-component in a lattice shape and contained an appropriate amount, thereby having a tear propagation preventing property, but the porosity of the hybrid fabric exceeded 3%. As a result, many pinholes were generated in the combustion test, and smoke leaked out from the pinhole. Thus, the test could not be adapted to the ASTM-E1354: corn calorimeter test method. That is, any of the membrane materials of Comparative Examples 1 to 5 can be adapted to the non-combustible material (Ministry of Construction Notification) determined by the Minister of Land, Infrastructure, Transport and Tourism, and when the membrane material is subjected to an impact, it has an excellent tear propagation inhibiting effect. It was not something that combines.

本発明によれば、ISO5660Part1に規定の燃焼特性に適合し、さらに建築基準法施行令の規定(第百八条の二)にも適合し、しかも物が衝突するなどして膜材料に穴が開いたとしても、優れた引裂伝播抑止効果を発現し、膜材料の裂傷被害を効果的に軽減する耐衝撃性に優れた不燃膜材料を提供することができる。従って本発明の膜材により、膜天井に用いる建築構造物用膜材料などに広く適して用いることができる。 According to the present invention, it conforms to the combustion characteristics defined in ISO 5660 Part 1 and further conforms to the provisions of the Building Standards Law Enforcement Order (Article 108-2), and the membrane material has a hole, for example, when it collides with it. Even if it is opened, it is possible to provide an incombustible film material excellent in impact resistance that exhibits an excellent tear propagation inhibiting effect and that effectively reduces damage to the film material. Therefore, the membrane material of the present invention can be widely used as a membrane material for building structures used for membrane ceilings .

1:不燃性膜天井材料(光拡散透過性積層体)
2:混成織物
2−1−1:無機繊維糸条(経)
2−1−2:無機繊維糸条(緯)
2−2−1:炭素繊維高弾性率糸条(経)
2−2−2:炭素繊維高弾性率糸条(緯)
3:難燃樹脂被覆層
1: Non-combustible membrane ceiling material (light diffusive transparent laminate)
2: Hybrid fabric 2-1: Inorganic fiber yarn (warp)
2-1-2: Inorganic fiber yarn (weft)
2-2-1: High elastic modulus yarn of carbon fiber (warp)
2-2-2: Carbon fiber high modulus yarn (weft)
3: Flame retardant resin coating layer

Claims (4)

ガラス繊維、アルミナ繊維、及びシリカアルミナ繊維から選ばれた1種以上の無機繊維糸条を織物基材の主構成成分とし、当該無機繊維糸条を経糸及び緯糸とする空隙率3%以下の前記織物基材の片面以上に、難燃樹脂被覆層が設けられてなる光拡散透過性積層体であって、前記織物基材が、少なくとも経糸又は緯糸の一部に副構成成分として、炭素繊維高弾性率糸条を配置して含む混成織物であり、前記炭素繊維高弾性率糸条の配置率が、前記混成織物の平米単位質量当たり1〜18質量%で、かつ、前記混成織物が、酸化チタン顔料を3〜30質量%含む乳化重合ポリ塩化ビニル樹脂、または2液付加反応硬化型シリコーン樹脂による着色隠蔽層により、前記混成織物の質量に対して25〜100質量%で被覆することによって、前記炭素繊維高弾性率糸条の配置及び存在が隠蔽されていることを特徴とする引裂伝播防止性に優れた不燃性膜天井材料。 One or more inorganic fiber yarns selected from glass fibers, alumina fibers, and silica alumina fibers are used as the main constituent components of the woven fabric base material, and the porosity is 3% or less using the inorganic fiber yarns as warps and wefts. A light diffusive transparent laminate having a flame retardant resin coating layer provided on one side or more of a woven fabric base material, wherein the woven base material has at least a part of warp or weft as a sub-component, carbon fiber high a hybrid fabric comprising by arranging the elastic modulus yarn, placement rate of the carbon fiber high modulus yarn is in 1 to 18 wt% per square meter unit mass of the composite fabric, and said composite fabric, oxidized By covering with 25 to 100% by mass with respect to the mass of the hybrid fabric by a colored concealment layer made of an emulsion-polymerized polyvinyl chloride resin containing 3 to 30% by mass of a titanium pigment, or a two-component addition reaction curable silicone resin. Charcoal Excellent noncombustible film ceiling material tear propagation preventing properties, characterized in that the arrangement and the presence of fiber high modulus yarn is concealed. 前記炭素繊維高弾性率糸条同士の配置間隔が、5mm〜50mmの等間隔である請求項1に記載の不燃性膜天井材料。 The nonflammable film ceiling material according to claim 1, wherein the carbon fiber high modulus yarns are arranged at regular intervals of 5 mm to 50 mm. 前記炭素繊維高弾性率糸条が、2本引揃である請求項1または2に記載の不燃性膜天井材料。 The nonflammable film ceiling material according to claim 1 or 2, wherein the carbon fiber high-modulus yarn is a two-wire assortment. 前記光拡散透過性積層体を試験体として、コーンカロリーメーター試験法(ISO5660Part1)において前記光拡散透過性シートに対して輻射電気ヒ−タ−による輻射熱を、50kW/mで照射した時に、加熱開始後20分間の総発熱量が8MJ/m以下であり、且つ加熱開始後20分間、10秒以上継続して最高発熱速度が200kW/mを超えない燃焼特性を有する、請求項1〜のいずれか1項に記載の不燃性膜天井材料。 When the light diffusive transparent laminate was used as a test specimen, heating was performed when radiant heat from a radiant electric heater was applied to the light diffusive transparent sheet at 50 kW / m 2 in a cone calorimeter test method (ISO 5660 Part 1). The total calorific value for 20 minutes after the start is 8 MJ / m 2 or less, and has a combustion characteristic that the maximum heat generation rate does not exceed 200 kW / m 2 for 20 minutes after the start of heating for 10 seconds or more. noncombustible film ceiling material according to any one of 3.
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