201135005 六、發明說明： 【發明所屬之技術領域】 相關申請案之相互參照 本申明案主張美國臨時專利申請案案號61/32〇7〇9的 提又』之利盈，其中該臨時專利申請案主張2刪年6月日 提出的美國臨時專利中請案案號61/217587之提交期的利 益。 發明領域 本揭不關心一種複合織物，更特別關於一種具有阻礙 血液及病毋性邊之複合織物，其使得該織物合適於使用在 保健應用中作為保護服裝。 I[先前名好】 發明背景 在保健領域中，已察覺需要對保健工作者提供保護來 抗對會傳染的病毒或血液輸送疾病（諸如AIDS及肝炎）之蔓 延。為此目的，已經發展使用在外科手術衣、遮罩、褶撊 及其它保護性服裝上的保護用織物。規章及標準（諸如 OHSA全面防s蒦作用（Universal Precautions act)及現在提出 在醫療設備發展協會(Association for the Advancement of Medical Instrumentation)( A AMI)之發展下的外科手術衣分 類標準（Surgical Gown classification standards))進一步促成 此需要之體認。 用來評估保護性織物對抗血液及病毒試劑滲透的阻礙 性質之工業標準包括ASTMF1670,其為使用在保護性織物 201135005 中的材料抵抗合成血液渗透之標準測試方法；及astm F1671，其為使用在保護性織物中的材料抵抗血液輸送性病 原體滲透(使用Phi-x 174噬菌體滲透作為測試系統)之標準 測試方法。 根據ΑΜΜΙ工藝資訊報導TIR 11 : 2005，對外科手術衣 或其它保護性服裝產物來說，若其關於ASTM F167〇及 ASTM 1671測試程序二者具有不超過4%的允收標準(AqL) 時，其k供程度4的分類，其為最高及最好的等級。aql定 義為為了採樣檢驗的目的，令人滿意的製程平均之極限的 品質程度。參見ANSI/AAMI PB 70 : 2003。食品藥物管理 局（FDA)需要34個測試樣品有3〇個通過ASTM F1671 (88.23%的通過比例）之允收標準（AqL)的主張。實務上，將 想要更小的剔除頻率。 可在合理的成本下獲得滿足上述阻礙標準（ASTM F1670及ASTM F1671)之保護性織物，但是這些織物典型為 提供些微或無透氣性之塗佈塑膠的織物。其缺乏透氣性明 顯促成穿戴者的不舒服及熱壓力。手術衣製造商嘗試改良 舒適度的一種方法為使用僅在手術衣的額頭及手臂區域中 塗佈的織物。但是，此實施妥協在身體的其它區域中之保 護。 工業上使用來測量阻礙性織物之透氣性的常見方法為 水蒸氣傳遞速率(MVTR)，如藉由ASTM E96(材料之水蒸氣 穿透的標準測試方法）測量。當通過ASTM F167〇&ASTM F1671時’可獲得能提供水蒸氣傳遞之可透氣的阻礙性織 4 201135005 物。这些阻礙性織物以全氣乙烯或共聚醋膜及薄膜為主。 但是’因為其費用’它們典型使用在可再❹的保護性衣 物上’及作為可棄換式衣物時，其具有有限的可行性。 在可透氣的複合材料中獲得適宜的經濟之一種方法為 使用單一次通過將包含機械孔洞形成劑的聚合物擠壓到不 織布料上，隨後在十字垂直機器及/或機器方向上增量地拉 伸之方法。所產生的複合材料具微孔性。其對液體的通過 具不透性，同時微孔洞的存在對水蒸氣或空氣提供滲透 性。例如，可在該複合物中形成範圍在約01微米至約丨微 米内的微孔洞。此技術描述在US 5,865,926; US 6,258,308 ; 及US 2003/0124324 中。 此型式的塗佈方法之缺點（如與諸如描述在us 5,409,761中的積層方法比較）為該擠壓塗佈方法具有在織 物中形成針孔或不連續的趨勢。此針孔可造成ASTM F1670 及ASTMF1671二者失敗。若針孔足夠小（例如，具顯微性) 時，該塗層可通過ASTMF1670血液渗透測試，但是更嚴厲 的ASTMF1671病毒滲透測試將仍然失敗。 美國專利公告2004/0219337及美國專利公告 2003/0124324藉由在不織織物的任一邊上塗佈一微孔性膜 層來解決此關心。如在這些公告中提到，基本概念為使用 低基礎重量的不織織物及二層微孔性塗層，具有針孔形成 的可能性減少及通過可形成針孔的複合物之可能性準線為 間接。但是，具有與使用者皮膚毗鄰配置的膜層會減低從 該織物製得的衣物之舒適程度。此外，雙塗層增加製造該 201135005 產物的成本及亦趨向於減低材料的褶撊、手感及彈性。 在技藝中需要能滿足ASTM F1671病毒滲透測試的嚴 厲需求同時維持高透氣性及優秀的舒適度之織物。 I：發明内容】 發明概要 本揭示提供-種複合織4勿，其滿足上述描述的血液及 病毒阻礙測試且具有優良的透氣性。 在一個具體實例中，該複合織物滿足程度4的血液阻礙 測試。 在某些具體貫例中，該複合織物超過丨5〇〇 克質量/平方公尺以小時，或超過3_克質量/平方公尺/Μ 小時，或超過侧克質量/平方公尺Μ小時或超祕〇〇克質 量/平方公尺/24小時。 在-個具體實例中，該複合織物包含可溶纖維的不織 織物’在其至少-邊表面上具有—可透氣的單片塗層。 在一個具體實例中，該單片塗層包含一聚㈣或一高 經取代的離聚物。 °玄不織織物經完全地壓延且無纖 在一個具體實例中， 維推擠通過該單片塗層。 讀取專利 該等具體實例的這些及其它特徵將在進一步 说明書及附加的中請專利範圍後變明顯。 圖式簡單說明 的複合織物之一個具體實例的側 第1圖為根據本揭示 視圖。 6 201135005 第2圖為根據本揭示的複合織物之另一個具體實例的 側視圖。 【實施方式3 詳細說明 參照第1圖，在一個具體實例中，複合織物10包含一不 織纖維織物12及一在該不織織物12的至少一邊表面上之單 片、可透氣的塗層14。參照第2圖，其闡明該複合織物的第 二具體實例。該複合織物100包含一配置在單片、可透氣的 塗層116之任一邊上的二片不織織物112,114。 纖維織物 在該具體實例中之不織織物可為任何在技藝中已知的 標準架構。不織織物包含呈無規或非重覆圖案安排的纖 維。不織織物通常可分類為連續或短纖維織物。連續纖維 織物為在一般的連續製程中，以產生纖維並將其沉積到傳 輸器或網柵上之方法所製得的織物。紡黏及熔噴為產生連 續纖維織物的方法之實施例。名稱“紡黏纖維”指為小直徑 纖維，其藉由擠壓一溶融的熱塑性材料(如來自複數條細（通 常環形）毛細管喷絲頭的細絲），然後快速地減小該經擠壓的 細絲之直徑（如藉由例如減小性拉長或其它熟知的紡黏機 制）形成。使用來製造纖維的其它形狀之毛細管（因此，纖維 它們本身的形狀）亦已知及有用。 已熔喷及熔喷指為藉由將熔融的熱塑性材料擠壓通過 複數條細（通常環形）毛細管模具（如為熔融線或細絲）進入 高速氣體(例如，空氣）流中，在其中讓該熔融的熱塑性材料 201135005 細絲變細以減少其直徑而形成纖維，其可到達微纖維直徑 (即，平均直徑不大於約100微米）。之後，由該高速氣體流 攜帶該熔喷纖維及沉積在收集表面上以形成一無規分散的 熔喷纖維織物。使用來製造纖維的其它形狀之毛細管（因 此，纖維它們本身的形狀）亦已知及有用。 短纖維織物為藉由將個別長度的纖維沉積到網栅或傳 輸器上所製得之織物。具有人造短纖維的織物之實施例包 括梳理纖維網。梳理為一種製得纖維織物的方法，其中纖 維在藉由梳理機器製造該織物的方向上平行或無規地排 列。梳理機器為一種具有一系列具有金屬線凸出物或金屬 牙齒（其分離該纖維與雜質）的鼓輪或滚筒之裝置。在梳理纖 維網中的纖維主要在機器方向上排列，但是亦可無規地定 向。 一旦製得該纖維及藉由上述任何方法沉積時，各別的 纖維藉由任何一或多種不同的方法形成一黏結的織物，諸 如熱黏合(壓延）、水力纒結、樹脂黏接或其它在此項技藝中 已知之方法。 該纖維可從多種熱塑性聚合物製得，包括聚烯烴，諸 如聚乙烯及聚丙烯；聚酯類、共聚酯類、聚醋酸乙烯酯、 聚醯胺類、共聚醯胺類、聚苯乙烯類、聚烏拉坦類、彈性 體材料（諸如可從例如克拉同（KRATON)聚合物LLC獲得之 苯乙烯嵌段共聚物，或可從例如道化學藥品（Dow Chemicals)獲得的超低密度聚乙烯樹脂或烯系嵌段共聚物 樹脂）、及任何前述的共聚物（諸如氣乙烯/醋酸乙烯酯）及其 8 201135005 ;乂物。在某些具體實例巾，亦可使用玻璃纖維織物。 ^合適的熱塑性纖維可從單一聚合物（單組分纖維）製得 s D從夕於一種聚合物(例如，雙組分纖維）製得，例如，“雙 ^刀纖維’’可指為包含從-種聚合物製得的核心纖維之熱 2〖生纖維’其中該核心被包裝在從不同聚合物製得的熱塑 眭保濩層内。包含該保護層的聚合物經常在與包含核心的 久S物不同之溫度（典型較低)下熔化。結果，這些雙組分纖 、准由於該保護層聚合物熔化提供熱黏合，同時保留核心聚 合物之想要的強度特徵。 雙組分纖維可包括具有下列聚合物組合的保護層/核 〜纖維.聚乙烯/聚丙烯、聚醋酸乙基乙烯酯/聚丙烯、聚乙 烯/4酯、聚丙烯/聚酯、共聚酯/聚酯、苯乙烯嵌段共聚物 彈性體/聚丙烯、聚自旨/低密度聚乙駭其難物。該雙組分 纖維可同中心或偏心、’此指為不論該保護料過該雙組分 纖維的截面區域之厚度是均勻或不均勻。在較低纖維厚度 下提供更大的擠壓強度時，會想要偏心雙組分纖維。 在用於梳理型不織織物的熱塑性人造短纖維之實例 中，其長度可依特別的熔點及這些纖維想要的其它性質而 變化。典型來說，這些熱塑性纖維具有長度從約0.3至約7.5 公分長，從約0.4至約3.0公分長較佳。亦可藉由變化纖維的 直徑(厚度）來調整這些熱塑性纖維之性質（包括熔點）。典型 就丹尼爾（denier)(每9000公尺的克數）或分德士（每丨〇,〇〇〇公 尺的克數)來定義這些熱塑性纖維的直徑。依在結構内的特 定安排而定，合適的熱塑性纖維可具有分德士在範圍從充 201135005 分低於1分德士(諸如，0 4分德士）至最高約2〇分德士内。 名稱“聚合物”包括同聚物、共聚物（諸如例如，嵌段、 接枝、無規及交替共聚物、三聚物等等）及其摻合物及改質 物。再者，除非其它方面有特別限制，否則名稱“聚合物” 意謂著包括該材料之全部可能的幾何組態，諸如同排、間 同立構及無規立構或無規對稱性。 該不織織物亦可接受標準潤飾技術。在較佳的具體實 例中’該不織織物為經完全壓延的織物。 因為數個理由’在織物上的單片塗層14，116應該儘可能 地薄。首先，較厚的塗層趨向於具有較低的透氣性（對較薄 的塗層來6兒）。其次，較厚的塗層趨向於製造出較僵硬之織 物且八有比較薄的塗層還少之想要的褶橺。當然，較薄的 1層*要較少材料從而較少的製造代價。在某些具體實例 中°玄單片塗層厚度在10至1〇〇微米間’及於此之間的全部 範圍在某些具體實例巾，該單#塗層厚度在25至75微米 間。在其它具體實例中，該塗層厚度可僅約10微米。 為了維持防血液及病毒性，欲接收塗層的不織織物表 ，無任何可推擠通過該單片塗層之纖維重要。推擠越出該 早片塗層厚度之纖維會產生允許病毒性化合物通過的針孔 :亦血液通過的開口。選擇由連續纖維製得的不織織物可 良^因為它們趨向於具有較少或無從織物表面推擠出之 2由態纖維末端。但是，平坦的連續纖維不織織物會呈有 it面上延伸的纖維環，造成針孔產生的可能性。 因此’選擇及/或k料_如職錢維末端或 201135005 ^維環越過該單片塗層厚度且被推擠錢物表面上為該複 5物的重要觀點。為此理由，最好在足以消除任何此表面 纖維之熱及壓力下完全壓延該不_物。此外，最㈣不 織織物包含可_維。名稱“可_維，，指為包含由具有不 同炫化溫度的材料製得之纖維的不織織物。在壓延製程期 間’具有較麟化溫度的_躲化妹化域合至在織 ^中的其它纖維’因此增加在織物内的内部黏合及保證織 物表面仍好滑及無可推擠在單片塗層上之任何纖維。 可炼纖維織物的實施例包括雙組分纖維織物，盆中較 高溶點的聚合物（諸如㈣絲輯)被包裝在較低炼點的 聚合物(諸如$乙烯)保護層中。其它實施例包括包含聚丙稀 纖維與聚乙稀纖維二者的不織織物，或由__半—種聚人物 與-半另__纖維製得之織物，只要使詩每—钱聚 合物或聚合麟合物具有不同_化溫度4組分纖維織 ，提供最好的結果，因此較佳。由聚醋與低密度聚乙稀保 5蔓層之雙組分纖維製得的纖維織物用於醫療應用特別佳， 因為此織物可使用γ輻射消毒。 單片塗層 4複合織物在该不織織物的至少一邊表面上具有單片 塗層14，116。許多具有ρ枝液及/或病毒性的㈣技藝複合 物使用微孔韻或塗層。此膜包含微粒狀材料（諸如碳酸 辦）’其分佈在聚合物基質中。在該膜形成後 ’拉伸其以將 Λ聚口物拉離開該微粒狀材料，從而產生一多孔網狀物， '、太小讓液體無法通過，但是足夠大可讓水蒸氣穿透。另 201135005 一方面，早片膜及塗層具有截面尺寸在分子程度（藉由聚合 方法形成）之孔洞。該孔洞提供作為導管，藉此水（或其它液 體）分子可散播通過該膜。由於貫穿該單片膜的濃度梯度， 發生蒸氣穿透通過該單片膜或塗層。此過程指為活化擴 散。當水(或其它液體)在該膜的一邊上蒸發時，水蒸氣濃度 增加。水蒸氣會在該膜的表面上凝結及溶解。至於液體， 水分子溶解進入膜中。然後’水分子擴散通過該單片膜及 在具有較低水蒸氣濃度之邊上再蒸發進入空氣中。 使用真空塗佈技術來塗佈該單片塗層14較佳，如在us 5,753,342 ; US 5,762,643 ; US 5,660,882 ;及US 6,211,1〇2 中所教導，該等揭示以參考之方式併入本文。在真空塗佈 方法中，將熔融聚合物從模具擠壓到基材（於此實例中，經 壓延的不織織布）上，同時該基材被支樓在形成貫穿的筛網 上。對該基材的相反邊施加真空，此提供將塗層拉入該基 材中’因此將纖維埋入塗層中。真空塗佈技術較佳，因為 其產生一具有改良的勒度及对磨損性之複合物。其它合適 (但是較不佳）於塗佈單片塗層或膜的技術包括黏著劑積 層、超音波黏合、真空積層及擠壓塗佈。 合適於使用作為單片塗層的樹脂包括來自阿凱馬公司 (Arkema，Inc·)的佩貝斯^嵌段酿胺彈性體；$ 自杜邦(DuPont)的亥崔爾（Hytrel)⑧聚酯彈性體；及亦有來 自杜邦的安替拉(Entira)®布雷斯(Breathe)，其為高經取代 的聚稀烴離聚物。安替拉⑨布雷斯離聚物特別佳，因為其成 本較低及與大部分錢織物有較好的相容性。 12 201135005 為了提高在不織布料與單片塗層間之黏附力， 該單片塗層與不織織物間塗佈—黏附力促進劑薄層Γ諸如 丙烯酸乙稀以旨。此可藉切該_力促進材料噴灑到纖 維織物上’或以黏附力促進層16，120與單片樹脂層㈣8 之共擠壓物來塗佈該單片塗層14，116(如在第…圖中看見) 方便地i«。必需關心的是，將該_力促進層保持儘可 能地薄以保證該複合物維持高請叹。因為_附力促進 層會負面地衝擊透氣性’最好鋪附力促與好的透 氣性-致且更提高對該不織物的黏合之百分比與該單片組 成物掺合。已fil明濃度15_25重量％的黏附力促進劑優良 (18-22%較佳）。 加工 為了改良該複合物的觸覺性質，增量地拉伸該複合物 優良。增量地拉伸為已知的方法，其中藉由讓薄片材料通 過一由彼此咬合的鋸齒狀滾筒所形成之夾子來拉伸。當該 薄片材料通過滾筒時，摩擦力造成該薄片被“夾住”，其中 該薄片接觸在滾筒上的牙齒頂點。然後，此變成一失住點 或摩擦點，其中該材料仍然相對地靜止。因此，該薄片材 料假設以一正弦曲線路徑通過夾子，其在毗連的夾住點間 之區域中拉伸該薄片。藉由將滾筒一起帶至較接近，咬合 程度（即，嚙合深度）增加及產生較大的織物路徑，從而拉伸 量增加。爽住點保持相對靜止從而不扳伸，或相對於該毗 連區域非常些微地拉伸。因此，該薄片材料被增量地(與在 夾住膜的滾筒上之牙齒位置相應)拉伸。 13 201135005 在該方法中所授予的拉伸程度與在傳動滾筒上的牙齒 尺寸及形狀、牙齒的間距及喃合深度相關。但是，典裂來 况’該方法產生非常高拉伸及無拉伸或最小拉伸的交替區 域。例如’其可能為該材料的區域被拉伸至1〇〇或2〇〇%及 眺連的區域根本未被拉伸。*像拉幅機伸展^或機器方向 拉伸技術，該薄片在增量拉伸後的整體尺寸可僅多於在拉 伸前之2_6%，然而該薄片材料將具有如若其已經在拉幅機 框架中被拉伸至數百百分比般相同的性質（透氣性）。 在該等具體實例中，該複合物可在機器方向、十字垂 直方向或二者中增量地拉伸。多種設備在技藝中已知可讓 該增量拉伸製程遍及該織物更均勻。例如，us 6,368,444(其 内容以參考之方式併入本文)教導此設備。在該等具體實例 中，可優良地使用此設備。 實施例 製備一系列的複合織物及測試MVTR和防血液性。使 用描述在ASTM E46中的方法測量MVTR。使用描述在 ASTMF1670中的方法測量防血液性。結果報導在表上中。 實施例1 讓來自薛雷格薛莫（Shalag Shamir)、具有基礎重量5〇 克/平方公尺之NSTCPTE-50不織織物通過由二個已加熱的 滾筒形成之夾子’以完全地壓延該織物，以便無纖維延伸 越出該織物表面。將由微孔層與單片EMA層（愛克松 (EXXON) TC120)之共擠壓物所組成的塗層擠壓到該不織 織物之表面上’及讓該經塗佈的織物接受真空以將該塗層 201135005 抽入該織物中及包住纖維。該塗層在最後複合物中的厚度 為23微米。 實施例2 重覆實施例1之方法，除了將疏水性添加劑（煙帕西特 (Ampacet)A101722)摻入該共擠壓塗層的微孔層中外。 實施例3 重覆實施例1之方法，除了使用超低密度聚乙烯樹脂 (道EG8200)取代EMA外。 實施例4 重覆實施例1之方法，除了使用高經取代的離聚物（杜 邦的潤塔思(Rentas)500)取代EMA外。 實施例5 重覆實施例1之方法，除了使用NSTCPTE-30(薛 雷格薛莫）（一種30 GSM經壓延的雙組分不織物）取代 NSTCPTE-50，及使用微孔層的聚丙烯形式取代實施例1之 聚乙稀形式外。 實施例6 重覆實施例1之方法，除了以1〇0%安替拉⑧布雷斯置換 微孔層及該共擠壓的表面層經安替拉⑧布雷斯修飾以黏附 至 NSTCPTE-30 外。 實施例7 重覆實施例1之方法，除了該共擠壓的塗層厚度（包含 1〇〇%安替拉®布雷斯(如為一層）及含有EMA黏附促進劑的 安替拉②布雷斯及總塗層厚度)減低至職米外。 15 201135005 表1 實施例 MVTR (克質量/平方公尺/天） 防血液性 (通過/失敗) 1 100 混合 2 60 通過 3 75 通過 4 500 通過 5 1100 混合 6 3600 通過 7 7000 通過 如從表1看見，使用單片塗層的實施例（實施例6及7)具 有明顯較高的MVTR及對防血液性具有一致的通過比例（如 與微孔塗層比較，即使使用習知的單片塗層在相同塗層厚 度下）。特別注意的是，實施例7僅具有10微米厚的塗層， 更通過防血液性測試及具有值得注意的高MVTR。 實施例8 讓來自薛雷格薛莫、具有基礎重量30克/平方公尺的 NSTCPT£-30不織織物通過由二個已力口熱白勺滾筒形成之爽 子，以完全地壓延該織物’以便無纖維延伸越出該織物表 面。該織物塗佈一包含層1與層2的共擠壓物及讓該經塗佈 的織物接受真空以將該塗層抽入織物中及包住纖維。層1包 含摻合EMA(TC120 ; 30°/。)的安替拉®布雷斯(7〇%)之摻合 物。層2包含100%安替拉⑧布雷斯塗層。以12 GSM的塗佈 比例施加該塗佈。 從實施例8之織物中隨意地選擇十個樣品及使用ASTM 1671之方法讓其接受防病毒性測試。結果報導在表2中。 16 201135005 表2 樣品案號 斑數 視覺穿透 測試結果 8-1 無 無 通過 8-2 無 無 通過 8-3 無 無 通過 8-4 無 無 通過 8-5 無 無 通過 8-6 無 無 通過 8-7 無 無 通過 8-8 無. 無 通過 8-9 無 無 通過 8-10 太多無法計數 益 »»»、 失敗 實施例9 讓來自薛雷格薛莫、具有基礎重量30克/平方公尺的 NSTCPTE-30不織織物通過由二個已加熱的滾筒形成之夹 子，以完全地壓延該織物，以便無纖維延伸越出該織物表 面。以包含層1與層2的共擠壓物來塗佈該織物及讓該經塗 佈的織物接受真空以將該塗層抽入織物中及包住纖維。層1 包含摻合EMA(TC 120 ; 30%)之安替拉®布雷斯(70%)的摻合 物。層2包含100%安替拉®布雷斯。以12 GSM的塗佈比例 施加該塗佈。 實施例10 以二層共擠壓膜塗佈一具有基礎重量26克/平方公尺 的不織織物(7705,來自杜邦），同時讓該不織織物接受真空 壓力2 03毫米汞柱以將該塗層抽入織物中及包住纖維。該膜 的第—層包含摻合EMA(20%)的安替拉®布雷斯(80%)之摻 合物。第二及第三層各者由100%安替拉®布雷斯組成。以 17 201135005 12克/平方公尺的塗佈比例施加該塗佈，層1包含約15重量％ 的該三層塗層。然後，以重量4克/平方公尺將黏著劑喷灑 霧化到該三層膜之表面上，及將不織第二織物（7705，來自 杜邦)黏附至該膠合層。然後，讓所產生的複合物通過在二 個咬合齒輪間形成之夾子及在橫軸方向中增量地拉伸至嚙 合深度1毫米，以改良織物的觸感。 實施例11 重覆實施例10，除了所產生的複合物增量地拉伸至嚙 合深度1.65毫米外。 實施例12 重覆實施例10，除了以比例15克/平方公尺施加該三層 塗層外。 實施例13 重覆實施例11，除了以比例15克/平方公尺施加該三層 塗層外。 實施例14 以二層共擠壓的膜塗層來塗佈具有基礎重量38克/平 方公尺的不織織物(7720,來自杜邦），同時讓該不織織物接 受真空壓力356毫米汞柱以將該塗層抽入織物中及包住纖 維。該膜的第一層包含摻合EMA(20%)的安替拉®?布雷斯 (80%)之摻合物及第二層由100%安替拉®布雷斯組成。以塗 佈比例14克/平方公尺施加該塗層，該第一層包含約15重量 %的該塗層。然後，以重量4克/平方公尺將黏著劑喷灑霧化 到該膜塗層之表面上，及將具有基礎重量37.3克/平方公尺 18 201135005 的不織第二織物（7705，來自杜邦）黏附至該膠合層。然後， 讓所產生的複合物通過在二個咬合齒輪間形成之夾子及在 橫軸方向上增量地拉伸至嚙合深度1.65毫米，以改良織物 的觸感。 【圖式簡單說明】 第1圖為根據本揭示的複合織物之一個具體實例的側 視圖。 第2圖為根據本揭示的複合織物之另一個具體實例的 側視圖。 【主要元件符號說明】 10...複合織物 112...不織織物 12...不織纖維織物 114...不織織物 14...單片可透氣的塗層 116...單片可透氣的塗層 16...黏附力促進層 118…單片樹脂層 18.. .單片樹脂層 100.. .複合織物 120…黏附力促進層 19201135005 VI. Description of the invention: [Technical field to which the invention pertains] Cross-reference to the related application This claim claims the benefit of the US Provisional Patent Application No. 61/32〇7〇9, which is a provisional patent application. Proposal 2 The interest of the filing period of the US Provisional Patent No. 61/217587 filed on June 6th. FIELD OF THE INVENTION This disclosure is not concerned with a composite fabric, and more particularly with a composite fabric having a barrier to blood and diseased edges that renders the fabric suitable for use as a protective garment in health care applications. I [Previous Name] Background of the Invention In the field of health care, it has been observed that health care workers need to be protected against the spread of contagious viruses or blood-transmitting diseases such as AIDS and hepatitis. For this purpose, protective fabrics for use on surgical gowns, masks, pleats and other protective garments have been developed. Regulations and standards (such as the OHSA Universal Precautions act and the Surgical Gown classification now under the development of the Association for the Advancement of Medical Instrumentation (A AMI) Standards)) further contribute to the recognition of this need. Industrial standards for assessing the barrier properties of protective fabrics against penetration by blood and viral agents include ASTM F1670, a standard test method for resisting synthetic blood penetration using materials used in protective fabric 201135005; and astm F1671, which is used for protection The material in the fabric is resistant to the penetration of blood-transporting pathogens (using Phi-x 174 phage infiltration as a test system). According to THR 11:2005, for surgical gowns or other protective apparel products, if they have an acceptance standard (AqL) of no more than 4% for both ASTM F167〇 and ASTM 1671 test procedures, Its k is the classification of degree 4, which is the highest and best grade. Aql is defined as the degree of quality that satisfies the limits of the average process average for the purpose of sampling inspection. See ANSI/AAMI PB 70: 2003. The Food and Drug Administration (FDA) requires three of the 34 test samples to pass the ASTM F1671 (88.23% pass ratio) acceptance criteria (AqL). In practice, you will want to eliminate the frequency. Protective fabrics that meet the above impediment standards (ASTM F1670 and ASTM F1671) can be obtained at reasonable cost, but these fabrics are typically coated with a slightly or non-breathable coated plastic. Its lack of breathability significantly contributes to the discomfort and heat stress of the wearer. One method by which surgical garment manufacturers attempt to improve comfort is to use fabric that is only applied to the forehead and arm area of the surgical gown. However, this implementation compromises protection in other areas of the body. A common method used in the industry to measure the gas permeability of barrier fabrics is water vapor transmission rate (MVTR), as measured by ASTM E96 (Standard Test Method for Water Vapor Penetration of Materials). When passed through ASTM F167® & ASTM F1671, a breathable barrier woven fabric 4 201135005 can be obtained which provides water vapor transmission. These barrier fabrics are dominated by all-gas ethylene or copolymerized vinegar films and films. However, 'because of their cost' they are typically used on recyclable protective clothing' and as disposable clothing, they have limited feasibility. One method of obtaining a suitable economy in a gas permeable composite is to use a single pass to extrude a polymer comprising a mechanical pore former onto a nonwoven fabric, followed by incremental pulling in a cross vertical machine and/or machine direction. The method of stretching. The resulting composite material is microporous. It is impervious to the passage of liquids, while the presence of micropores provides permeability to water vapor or air. For example, microvoids ranging from about 01 microns to about ten micrometers can be formed in the composite. This technique is described in US 5,865,926; US 6,258,308; and US 2003/0124324. Disadvantages of this type of coating process (as compared to the lamination process such as described in us 5, 409, 761) have a tendency for the extrusion coating process to form pinholes or discontinuities in the fabric. This pinhole can cause both ASTM F1670 and ASTMF1671 to fail. If the pinhole is small enough (for example, microscopic), the coating can pass the ASTM F1670 blood permeation test, but the more severe ASTM F1671 virus penetration test will still fail. U.S. Patent Publication No. 2004/0219337 and U.S. Patent Publication No. 2003/0124324 address this concern by coating a microporous film layer on either side of the nonwoven fabric. As mentioned in these announcements, the basic concept is the use of low basis weight nonwoven fabrics and two layers of microporous coatings, with the possibility of pinhole formation being reduced and the possibility of passing through the composites that can form pinholes. For indirect. However, having a film layer disposed adjacent to the user's skin reduces the comfort of the garment made from the fabric. In addition, the dual coating increases the cost of manufacturing the 201135005 product and tends to reduce the pleats, feel and elasticity of the material. There is a need in the art for fabrics that meet the stringent requirements of the ASTM F1671 virus penetration test while maintaining high breathability and excellent comfort. I. SUMMARY OF THE INVENTION The present disclosure provides a composite woven fabric which satisfies the blood and virus barrier test described above and has excellent gas permeability. In one embodiment, the composite fabric meets a degree 4 blood impediment test. In some specific embodiments, the composite fabric exceeds 〇〇5 gram mass per square meter in hours, or exceeds 3 grams mass per square meter per inch hour, or exceeds side grams mass per square meter per hour. Or super secret gram mass / square meter / 24 hours. In a specific example, the composite fabric comprises a nonwoven fabric of soluble fibers having a gas permeable monolithic coating on at least the side surface thereof. In one embodiment, the monolithic coating comprises a poly(tetra) or a highly substituted ionomer. The woven fabric is completely calendered and fiber-free. In one embodiment, the dimension is pushed through the monolithic coating. These and other features of these specific examples will become apparent after further specification and additional claims. A side view of a specific example of a composite fabric briefly illustrated in the drawings is a view according to the present disclosure. 6 201135005 Figure 2 is a side elevational view of another embodiment of a composite fabric in accordance with the present disclosure. [Embodiment 3] Referring to Figure 1, in one embodiment, composite fabric 10 comprises a nonwoven fabric 12 and a single sheet, breathable coating 14 on at least one side surface of the nonwoven fabric 12. . Referring to Figure 2, a second specific example of the composite fabric is illustrated. The composite fabric 100 comprises two nonwoven webs 112, 114 disposed on either side of a single sheet, breathable coating 116. Fiber Fabric The nonwoven fabric in this particular example can be any standard construction known in the art. Nonwoven fabrics comprise fibers arranged in a random or non-repeating pattern. Nonwoven fabrics can generally be classified as continuous or staple fabrics. Continuous fiber fabrics are fabrics produced in a generally continuous process to produce fibers and deposit them onto a conveyor or grid. Spunbonding and meltblowing are examples of methods of producing continuous fibrous webs. The name "spunbond" refers to a small diameter fiber that is extruded by extruding a molten thermoplastic material (such as filaments from a plurality of thin (usually annular) capillary spinnerets) and then rapidly reducing the extrusion. The diameter of the filaments (as formed, for example, by reduced elongation or other well known spunbond mechanisms). Capillaries of other shapes used to make fibers (and therefore the shape of the fibers themselves) are also known and useful. Meltblown and meltblown refers to the flow of a high velocity gas (eg, air) into a stream of high velocity gas (eg, air) by extruding a molten thermoplastic material through a plurality of thin (usually annular) capillary dies (eg, melt lines or filaments). The molten thermoplastic material 201135005 filaments are tapered to reduce their diameter to form fibers that can reach the microfiber diameter (i.e., have an average diameter of no greater than about 100 microns). Thereafter, the meltblown fibers are carried by the high velocity gas stream and deposited on a collecting surface to form a randomly dispersed meltblown fiber web. Capillaries of other shapes used to make fibers (and hence the shape of the fibers themselves) are also known and useful. Short fiber fabrics are fabrics produced by depositing individual lengths of fibers onto a grid or conveyor. An embodiment of a fabric having staple fibers includes a carded web. Carding is a method of making a fibrous web in which the fibers are aligned in parallel or randomly in the direction in which the fabric is made by a carding machine. A carding machine is a device having a series of drums or rollers having metal wire projections or metal teeth that separate the fibers from impurities. The fibers in the carded web are arranged primarily in the machine direction, but can also be oriented randomly. Once the fibers are produced and deposited by any of the methods described above, the individual fibers are formed into a bonded fabric by any one or more different methods, such as thermal bonding (calendering), hydroentanglement, resin bonding, or the like. A method known in the art. The fiber can be made from a variety of thermoplastic polymers, including polyolefins such as polyethylene and polypropylene; polyesters, copolyesters, polyvinyl acetate, polyamidos, copolyamines, polystyrenes Polyurethane, elastomeric materials such as styrenic block copolymers obtainable, for example, from KRATON Polymer LLC, or ultra low density polyethylene resins available from, for example, Dow Chemicals Or an olefinic block copolymer resin), and any of the foregoing copolymers (such as ethylene/vinyl acetate) and its 8 201135005; In some specific examples, fiberglass fabrics can also be used. ^ Suitable thermoplastic fibers can be made from a single polymer (monocomponent fibers) from a polymer (for example, bicomponent fibers), for example, "double-knife fibers" can be referred to as containing The heat of the core fiber made from the polymer 2, the raw fiber is packaged in a thermoplastic enamel layer made from a different polymer. The polymer containing the protective layer is often in a long time with the core. The S material melts at different temperatures (typically lower). As a result, these bicomponent fibers provide thermal bonding due to melting of the protective layer polymer while retaining the desired strength characteristics of the core polymer. Includes protective layer/core to fiber. Polyethylene/polypropylene, polyvinyl acetate/polypropylene, polyethylene/4 ester, polypropylene/polyester, copolyester/polyester, benzene Ethylene block copolymer elastomer / polypropylene, poly / low density polyethylene bismuth. The bicomponent fiber can be concentric or eccentric, 'this refers to the cross section of the bicomponent fiber regardless of the protective material The thickness of the area is uniform or uneven. In the case of providing a higher extrusion strength at a low fiber thickness, an eccentric bicomponent fiber is desired. In the case of a thermoplastic staple fiber for a carded nonwoven fabric, the length may depend on the particular melting point and the fiber Typically, these thermoplastic fibers have a length of from about 0.3 to about 7.5 cm long, preferably from about 0.4 to about 3.0 cm. It is also possible to adjust these by varying the diameter (thickness) of the fibers. The properties of thermoplastic fibers (including melting points). The diameter of these thermoplastic fibers is typically defined in terms of denier (grams per 9000 meters) or texels (grams per metre, metric meters). Depending on the particular arrangement within the structure, suitable thermoplastic fibers may have a range of from less than 1 point in the charge of 201135005 (such as 0 to 4 cents) to a maximum of about 2 inches. The designation "polymer" includes homopolymers, copolymers (such as, for example, blocks, grafts, random and alternating copolymers, terpolymers, etc.), as well as blends and modifications thereof. Again, unless otherwise There are special restrictions, no The term "polymer" is intended to include all possible geometric configurations of the material, such as the same row, syndiotactic and atactic or random symmetry. The nonwoven fabric also accepts standard finishing techniques. In a preferred embodiment, the nonwoven fabric is a fully calendered fabric. The monolithic coatings 14, 116 on the fabric should be as thin as possible for several reasons. First, thicker coatings tend to It has a lower gas permeability (for a thinner coating of 6). Second, a thicker coating tends to produce a stiffer fabric and eight have a thinner coating and less of the desired pleats. Of course, the thinner 1 layer* requires less material and thus less manufacturing cost. In some embodiments, the thickness of the singular monolithic coating is between 10 and 1 〇〇 micron and the full range between For some specific examples, the single #coating thickness is between 25 and 75 microns. In other embodiments, the coating thickness can be only about 10 microns. In order to maintain blood and virus resistance, it is important to receive a non-woven fabric sheet of the coating without any fibers that can be pushed through the monolithic coating. Pushing the fibers beyond the thickness of the early coating produces pinholes that allow the passage of viral compounds: also the openings through which blood passes. It is desirable to select nonwoven fabrics made from continuous fibers because they tend to have less or no extruding fiber ends from the surface of the fabric. However, a flat continuous fiber nonwoven fabric will have a fiber loop extending on the iterative surface, creating the possibility of pinholes. Therefore, 'selection and/or k-materials _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ For this reason, it is preferred to completely calender the material under heat and pressure sufficient to eliminate any of the surface fibers. In addition, the most (four) non-woven fabrics contain wei. The name "may" means a non-woven fabric comprising fibers made of materials having different tempering temperatures. During the calendering process, the _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The other fibers' thus increase the internal bonding within the fabric and ensure that the fabric surface is still slippery and free of any fibers that can be pushed onto the monolithic coating. Examples of refinable fiber fabrics include bicomponent fiber fabrics, in pots Higher melting point polymers, such as (four) filaments, are packaged in a lower refining polymer (such as $ethylene) protective layer. Other embodiments include non-woven fabrics comprising both polypropylene and polyethylene fibers. Fabrics, or fabrics made from __half-poly-character and-half-fibers, as long as the poetry-per-money polymer or polymer lining has different _-temperature 4-component fiber woven fabrics, providing the best As a result, it is preferred that the fiber fabric made of the bicomponent fiber of the vinegar and the low-density polyethylene-containing 5 vine layer is particularly preferred for medical applications because the fabric can be sterilized using gamma radiation. 4 composite fabric on at least one side surface of the nonwoven fabric It has a monolithic coating 14,116. Many (4) technical composites with ρ-liquid and/or viral use microporous or coating. This film contains particulate materials (such as carbonated), which are distributed in the polymer matrix. After the film is formed, 'stretching' to pull the ruthenium sulphide away from the particulate material, thereby creating a porous network, 'too small to allow liquid to pass, but large enough for water vapor to pass through In addition, on the one hand, the early film and the coating have pores having a cross-sectional dimension at a molecular level (formed by a polymerization process). The pores are provided as a conduit whereby water (or other liquid) molecules can be dispersed through the membrane. Vapor permeates through the monolithic film or coating due to the concentration gradient across the monolithic film. This process is referred to as activation diffusion. When water (or other liquid) evaporates on one side of the membrane, the water vapor concentration increases. Water vapor will condense and dissolve on the surface of the membrane. As for the liquid, water molecules dissolve into the membrane. Then 'water molecules diffuse through the monolithic membrane and evaporate on the side with a lower water vapor concentration. The use of a vacuum coating technique to coat the monolithic coating 14 is preferred, as taught in US 5,753,342; US 5,762,643; US 5,660,882; and US 6,211,1,2, the disclosures of In the vacuum coating method, a molten polymer is extruded from a mold onto a substrate (in this example, a calendered nonwoven fabric) while the substrate is formed by a branch in a through-screen. Applying a vacuum to the opposite side of the substrate, which provides for pulling the coating into the substrate. Thus, the fibers are embedded in the coating. Vacuum coating techniques are preferred because they produce an improved degree of pull and Abrasion-resistant composites. Other suitable (but less preferred) techniques for coating monolithic coatings or films include adhesive lamination, ultrasonic bonding, vacuum lamination, and extrusion coating. The layers of resin include Pebes' block-branched amine elastomer from Arkema, Inc.; $Hytrel 8 polyester elastomer from DuPont; and also from DuPont Entira® Breathe, which is replaced by high Polyolefin ionomer. Antipyram 9 Brace ionomers are particularly preferred because of their lower cost and better compatibility with most money fabrics. 12 201135005 In order to improve the adhesion between the non-woven fabric and the monolithic coating, a thin layer of adhesion-adhesion promoter such as acrylic acid is applied between the monolithic coating and the non-woven fabric. This can be applied by spraying the _ force-promoting material onto the fabric or coating the monolithic coating 14, 116 with a co-extrudate of the adhesion promoting layer 16, 120 and the monolithic resin layer (4) 8. ...see in the picture) Conveniently i«. It is important to keep the _ force-promoting layer as thin as possible to ensure that the composite remains high. Because the adhesion promoting layer negatively impacts the breathability, the best adhesion promotes good gas permeability, and the percentage of adhesion to the nonwoven fabric is further increased to blend with the monolith composition. The adhesive strength promoter having a fild concentration of 15 to 25 wt% is excellent (18-22% is preferred). Processing In order to improve the tactile properties of the composite, it is excellent to incrementally stretch the composite. The incremental stretching is a known method in which the sheet material is stretched by a clip formed by a zigzag drum which is engaged with each other. When the sheet material passes through the drum, the friction causes the sheet to be "clamped", wherein the sheet contacts the apex of the tooth on the drum. This then becomes a point of loss or friction where the material is still relatively stationary. Thus, the sheet material is assumed to pass through the clip in a sinusoidal path that stretches the sheet in the region between the adjacent gripping points. By bringing the rollers closer together, the degree of bite (i.e., the depth of engagement) increases and a larger fabric path is created, resulting in an increase in the amount of stretch. The cool stay remains relatively stationary so as not to stretch or stretch very slightly relative to the contiguous area. Therefore, the sheet material is stretched incrementally (corresponding to the position of the teeth on the cylinder sandwiching the film). 13 201135005 The degree of stretch imparted in this method is related to the size and shape of the teeth on the drive roller, the spacing of the teeth and the depth of the merging. However, this method produces an alternating region of very high tensile and no stretching or minimal stretching. For example, it may be that the area of the material is stretched to 1 or 2% and the area of the chain is not stretched at all. * Like tenter stretching ^ or machine direction stretching technology, the overall size of the sheet after incremental stretching can be only more than 2 - 6% before stretching, however the sheet material will have if it is already in the tenter The frame is stretched to hundreds of percent of the same properties (breathability). In these specific examples, the composite can be incrementally stretched in the machine direction, in the vertical direction, or both. A variety of devices are known in the art to make the incremental stretching process more uniform throughout the fabric. For example, us 6,368,444, the contents of which are hereby incorporated by reference, teach the entire disclosure. In such specific examples, the device can be used with ease. EXAMPLES A series of composite fabrics were prepared and tested for MVTR and blood resistance. The MVTR is measured using the method described in ASTM E46. Anti-blood properties were measured using the method described in ASTM F1670. The results are reported on the table. Example 1 A NSTCPTE-50 nonwoven fabric having a basis weight of 5 g/m2 was passed through a clip formed by two heated rolls to completely calender the fabric. So that no fiber extends beyond the surface of the fabric. Extruding a coating consisting of a microporous layer and a coextrudate of a monolithic EMA layer (EXXON TC120) onto the surface of the nonwoven fabric' and subjecting the coated fabric to a vacuum The coating 201135005 is drawn into the fabric and encased in the fibers. The coating had a thickness of 23 microns in the final composite. Example 2 The procedure of Example 1 was repeated except that a hydrophobic additive (Ampacet A101722) was incorporated into the microporous layer of the coextruded coating. Example 3 The procedure of Example 1 was repeated except that an ultra low density polyethylene resin (Channel EG8200) was used in place of EMA. Example 4 The procedure of Example 1 was repeated except that a highly substituted ionomer (DuPont's Rentas 500) was used in place of EMA. Example 5 The procedure of Example 1 was repeated except that NSTCPTE-30 (Schleigg Shermo) (a 30 GSM calendered two-component non-woven fabric) was used in place of NSTCPTE-50, and a polypropylene form using a microporous layer was used. Instead of the polyethylene form of Example 1. Example 6 The method of Example 1 was repeated except that the microporous layer was replaced with 1 〇 0% Antella 8 Brace and the coextruded surface layer was modified with Antella 8 Brace to adhere to NSTCPTE-30. . Example 7 The method of Example 1 was repeated except for the coextruded coating thickness (containing 1% Antra® Brace (as a layer) and Antella 2 Brace containing EMA adhesion promoter And the total coating thickness) is reduced to the outside of the job. 15 201135005 Table 1 Example MVTR (gram mass / square meter / day) Anti-blood property (pass/fail) 1 100 Mix 2 60 Pass 3 75 Pass 4 500 Pass 5 1100 Mix 6 3600 Pass 7 7000 Pass as shown in Table 1 It can be seen that the examples using the monolithic coatings (Examples 6 and 7) have significantly higher MVTR and a consistent ratio of bleeding resistance (as compared to microporous coatings, even with conventional monolithic coatings). The layers are at the same coating thickness). Of particular note, Example 7 only had a 10 micron thick coating, passed the blood test and had a notable high MVTR. Example 8 An NSTCPT £-30 nonwoven fabric having a basis weight of 30 g/m 2 was passed through a Sparkle formed by two heated hot rolls to completely calender the fabric. So that no fiber extends beyond the surface of the fabric. The fabric is coated with a coextrudate comprising Layer 1 and Layer 2 and the coated fabric is subjected to a vacuum to draw the coating into the fabric and encase the fibers. Layer 1 contained a blend of Antella® Brace (7%) blended with EMA (TC120; 30°/.). Layer 2 contains a 100% Antella 8 Brace coating. The coating was applied at a coating ratio of 12 GSM. Ten samples were randomly selected from the fabric of Example 8 and subjected to an antiviral test using ASTM 1671. The results are reported in Table 2. 16 201135005 Table 2 Sample number of spots Number of visual penetration test results 8-1 No pass 8-2 No pass 8-3 No pass 8-4 No pass 8-5 No pass 8-6 No pass 8-7 No pass 8-8 No. No pass 8-9 No pass 8-10 Too many can't count benefit»»», Failed Example 9 Let from Scherrer Schemer, with a basis weight of 30 g/sq. The metre NSTCPTE-30 nonwoven fabric is passed through a clip formed by two heated rolls to completely calender the fabric so that no fibers extend beyond the surface of the fabric. The fabric is coated with a coextrudate comprising Layer 1 and Layer 2 and the coated fabric is subjected to a vacuum to draw the coating into the fabric and encase the fibers. Layer 1 contained a blend of Antella® Brace (70%) blended with EMA (TC 120; 30%). Layer 2 contains 100% Antella® Brace. The coating was applied at a coating ratio of 12 GSM. Example 10 A nonwoven fabric (7705 from DuPont) having a basis weight of 26 g/m 2 was coated with a two-layer coextruded film while the nonwoven fabric was subjected to a vacuum pressure of 2 03 mmHg to The coating is drawn into the fabric and encased in the fibers. The first layer of the film contained a blend of EMA (20%) blended with Antera® Brace (80%). The second and third layers are each composed of 100% Antiella® Brace. The coating was applied at a coating ratio of 17 201135005 12 g/m 2 , and layer 1 contained about 15% by weight of the three-layer coating. Then, the adhesive was spray-sprayed onto the surface of the three-layer film at a weight of 4 g/m 2 , and an unwoven second fabric (7705 from DuPont) was adhered to the gluing layer. Then, the resulting composite was passed through a clip formed between the two biting gears and incrementally stretched in the horizontal axis direction to a joint depth of 1 mm to improve the feel of the fabric. Example 11 Example 10 was repeated except that the resulting composite was incrementally stretched to a depth of engagement of 1.65 mm. Example 12 Example 10 was repeated except that the three-layer coating was applied at a ratio of 15 g/m 2 . Example 13 Example 11 was repeated except that the three-layer coating was applied at a ratio of 15 g/m 2 . Example 14 A two layer coextruded film coating was applied to coat a nonwoven fabric having a basis weight of 38 g/m 2 (7720 from DuPont) while allowing the nonwoven fabric to accept a vacuum pressure of 356 mm Hg. The coating is drawn into the fabric and encased in the fibers. The first layer of the film consisted of a blend of EMA (20%) blended with Antera® Brace (80%) and the second layer consisted of 100% Antila® Brace. The coating was applied at a coating ratio of 14 g/m 2 and the first layer contained about 15% by weight of the coating. Then, the adhesive was spray-sprayed onto the surface of the film coating at a weight of 4 g/m 2 , and a non-woven second fabric having a basis weight of 37.3 g/m 2 18 201135005 (7705, from DuPont) Adhesion to the glue layer. Then, the resultant composite was allowed to be stretched to a meshing depth of 1.65 mm by a clip formed between the two snap gears in the direction of the horizontal axis to improve the feel of the fabric. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a side elevational view of a specific example of a composite fabric according to the present disclosure. Figure 2 is a side elevational view of another embodiment of a composite fabric in accordance with the present disclosure. [Main component symbol description] 10...Composite fabric 112...Non-woven fabric 12...Non-woven fabric 114...Non-woven fabric 14...Single sheet of breathable coating 116...single A breathable coating 16... an adhesion promoting layer 118... a single resin layer 18. a single resin layer 100.. composite fabric 120... adhesion promoting layer 19