TW473572B - Cardable blends of dual glass fibers - Google Patents

Cardable blends of dual glass fibers Download PDF

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Publication number
TW473572B
TW473572B TW088102847A TW88102847A TW473572B TW 473572 B TW473572 B TW 473572B TW 088102847 A TW088102847 A TW 088102847A TW 88102847 A TW88102847 A TW 88102847A TW 473572 B TW473572 B TW 473572B
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TW
Taiwan
Prior art keywords
fiber
fibers
blend
glass
weight
Prior art date
Application number
TW088102847A
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English (en)
Inventor
Reginald Thomas Kruszewski
Original Assignee
Du Pont
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    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
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    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43835—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2003—Glass or glassy material
    • B01D39/2017—Glass or glassy material the material being filamentary or fibrous
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    • Y10T442/50—FELT FABRIC
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T442/608—Including strand or fiber material which is of specific structural definition
    • Y10T442/627—Strand or fiber material is specified as non-linear [e.g., crimped, coiled, etc.]
    • Y10T442/629—Composite strand or fiber material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T442/631—Glass strand or fiber material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/608—Including strand or fiber material which is of specific structural definition
    • Y10T442/627—Strand or fiber material is specified as non-linear [e.g., crimped, coiled, etc.]
    • Y10T442/632—A single nonwoven layer comprising non-linear synthetic polymeric strand or fiber material and strand or fiber material not specified as non-linear
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    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
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    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/637—Including strand or fiber material which is a monofilament composed of two or more polymeric materials in physically distinct relationship [e.g., sheath-core, side-by-side, islands-in-sea, fibrils-in-matrix, etc.] or composed of physical blend of chemically different polymeric materials or a physical blend of a polymeric material and a filler material

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Description

473572
案號 88102847 五、發明說明（1) 本發明係關纖維的密切摻混，其中纖維之一係雙成份破 璃，另一為未摺皺纖維。此二型纖維之組合容許雙成份破 璃纖維得以實用纺識加工。 璧1明之背景 合成玻璃氈可作濾器用，為技術上所週知。佛司登等之 美國專利4, 361，619號透露一狻聚四氟乙烯與玻璃纖維製 之濾器由卜35.重量I玻璃遑維奥„6l5-9.9重_量％聚四氟乙烯纖 ，摻合製一可梳理的網構經交疊形成被絮後縫合成氈/ 父疊被絮亦能縫合成織造聚四氟乙稀之支持襯塾作鼓奋 塑》。 八' 美國專利4, 361，619又在實例2中發表含直玻璃纖維盘 曲PTFE纖維摻合物之梳理。專利陳述即1加5〇重量％以上 之捲曲纖維摻合’玻璃纖維仍極難梳理。業界技 經驗證明本文内、極難〃一詞意謂摻混物無法經梳理之 工，梳理過網構的品質不夠作適用製品，或者梳理 須大幅減緩俾製造酷似網構纖維之一切配合。玻输二必 土大：摻合物5⑽重量時能達到的最高梳理速度在每戴分= 二：乾f内。總結果為含5〇%重量以上玻璃纖維；： 合物不實用。 m理得 製作含玻璃纖維超過50%重量的氈，困難曾歸因於 祕 2缺乏皺摺。®此有關製作玻璃纖維的技術孰味人士 =J捲曲的玻璃纖維能比直纖維較能 ‘:、、： = 經事實證明。 i 此點未
O:\57\57325.ptc 第4頁 ，曲或不規則形纖維係自二種玻璃組合纺成 _ϋϋ^620號史太^表雙成份玻璃組合物之捲：: 473572 ---案號88102847 年月日 修正 五、發明說明（2) 璃纖維。史太戈指示將二玻璃組合物各有不同熱膨脹係數 者送過纺絲器銳孔。在排齊的整體關聯下擠壓魂璃使此等 纖維自然冷後琴曲。 美國專利3，0 7 3，0 0 5號中邰德透露一種改進的較佳方法 製作二成分（雙成份）的史太戈捲曲玻璃纖維組合物。 史太戈與邰德皆透露梳理此等二組份玻璃纖維中適當捲 曲的可溶性纖維與玻璃纖維摻混時之改進。 其他人等曾完成附加工作，多數最新國際專利申請案 W095/12554發表利用雙成份玻璃纖維之玻璃組合物，
>095/29880透露有特殊結合性質的雙成份玻璃纖維均經刊 出0
捲曲玻璃纖維的主要生產廠“⑽丨叫^^^丨叫纖維玻璃 公司在Toledo，Ohio在出版文件（如Mechanical Engineering 117卷2期38頁，1 955年二月）中發表其以商 標名稱PRAFLEX出售之雙成份玻璃纖維有高彈性，推介作 緣再此外並陳述此雙成份玻璃纖維能經梭、理及以習用 織物製法針縫。但經本發明者與其他人等試圖實際梳理此 項雙成份玻璃纖維如M丨RAFLEX在產業上合格之梳理速度至 今未曾成功。捲曲破璃纖維的高彈性作用妨碍正常梳=^ 能應用於低模量纖維的技術諸如英國專利1，0 3 0 5 70號其 耐隆的改進梳理方法不能運用於極高模量的脆：玻 發明之概要 種緊密能梳理的纖維摻合物，包括雙料玻 ^ mm^ ^ ^ mm纖維含量等於或大於
O:\57\57325.ptc 第5頁 本發明提供一 璃纖維與不捲縮 473572
案號 88102847 五、發明說明（3) _____ 雙料玻璃纖維量。摻合物可另含第三纖 本發明之纖維摻合物易於產業上合格的17捲縮纖維。 勻黏附的網構從而製得被絮與氈。 、梳理速度it成均 本發明之較佳纖維摻合物包含自約卜 纖維，自鈞卜&D重量％未捲曲纖維及約重量％雙料玻璃 纖維，其中未捲曲纖維含量等於或大於等^重量％之捲曲 較佳非捲縮纖维係"DE"型玻璃，較佳=縣破璃邋維量。 合物纖維。具特別價值之播曲纖維係纖維為含氟聚 含約20重量％雙料玻璃纖維，3〇至5〇 纖維。最佳為 璃纖維與50至30重量％捲縮的含氣聚合物输型不捲曲玻 被絮與襯熱，装Φ# 纖、准摻合物所製之層聶 攸糸興襯墊，其中層疊的纖維被絮係尸/r I之層* 玻璃纖維、約卜60重量％未捲曲纖維、及重量％雙料 捲縮纖維之緊密摻合物構成，其中 、’·、 〇-98重量％之 大於雙成份玻璃纖維。本發明濾氈（ 纖維含量等於或 成膜或其他適當底質。 夕蚝或氈襯墊）可層疊 本發明亦提供一種方法能用以製 詳細說明 F钣、及蚝〇 本發明係有關於纖維緊密的能梳 -係雙成份玻璃纖維，其他為不捲縮纖；物’其中纖維之 組合容許雙成份玻璃纖維之實用纺織^加工。b 一里纖維的 文内用5¾雙成份（或釋雙料）玻璃 立 或多種玻璃組人物久士 准思指玻璃纖維由二 纖維亦可稱作不規則形 雙成伤玻璃
O:\57\57325.ptc 第6頁 等玻璃纖維不直，但纺： = = 料玻璃纖維。此 —：~~ -；一~後變成捲曲^生自然無規則撚 473572 亲號 88102847 年一__η 修正 五、發明說明（4) 曲。理想上此纖維之剖視圖會親現一丰纖雉务第一種破璃 組合物形成，另一半則由第二種玻璃組合物作成。 一種雙料玻璃纖維之較佳式樣係Owens-Corning玻璃纖 維公司商標MIRAFLEX名下所售者。MIRAFLEX據報告係由二 不同式硼矽酸鈉玻璃熔化一起成為單纖絲製造。不像傳統 直玻璃纖維，MIRAFLEX纖維有無規則撚度，廣告宣稱具柔 軟韌性、如絲觸覺，且實際上不旛。纖維彈性高使其特別 適用於捲材絕緣’其中纖維以及絕緣物可緊捲成壓實包 襄，鬆捲時回復起初鬆散高聳之大部份/捲成壓實" 本發明的不捲纖維係一基本上直的纖維，無甚彎曲、扭 撚、捲縮或不規則形狀。較佳不捲纖維為” DE”型玻璃纖維 或其他適當之直玻璃纖維。添加不捲纖維雖不充分理解， 出現雙成份玻璃纖維彈性降低遂使摻合物的鬆散或起毛減 谷許實=纺織作業速度。本發明可用之其他不捲纖維 為不捲的$香族㈣胺纖維，如對㈣胺 物纖維如PTFE與PFA纖維、不捲蝥,掄々取系略^ 个掩欽乙姊或聚丙烯纖維、不 捲的聚醯胺纖維、不捲的聚舻 取沾兀〜丄 仏 舟扪永S日、聚醯亞胺或聚次苯化硫纖 維0 文内用辭含氟聚合物咅；^ 々®人从上-儿 物心才日♦四乱乙稀(PTFE》及一般所知 之聚合物如齓化的烯型聚人私 ^t(FEP) ^ ^ ^ ^ 。物，舉例，四氟乙烯與六氟丙 二基-乙烯基醚諸如全 氣稀型三聚物包括前)列及單王/Λ基他乙稀/喊之共聚物，含 者。 早體與其他四氟乙烯基之共聚物
473572 案號 88102847 五、發明說明（5) 度。 此緊密摻合物成功之必要參數為不捲的纖維含量必須等 於或大於雙料玻璃纖維。若添加不捲纖維太少、雙料玻璃 纖維的彈性將過高而無法以實用速度處理摻合物。 一種捲曲的第三纖維可加進雙料玻璃與不捲纖維摻合物 以增加功能度或作自此摻合物其後製氈之黏合材料用。此 第二纖維較佳係選自杜邦商標TEFL0N纖維下所售之P PFA等類的捲曲含氟聚合物纖維。本發明中可用°之其他捲 ::維土括捲曲的芳香族聚醯胺纖維，如對芳醯胺、，捲曲 的聚乙烯或聚丙烯纖維’捲曲的聚醯胺纖維，捲曲的聚 S曰，聚酿亞胺或聚次苯化硫纖維等。 製纖”合物易於梳理成均句内聚網•，由此能 襯墊ί被ΐ。ίί本發明的乾可係一針縫被絮或經針乳成 =的較佳組合物含PTFE纖維隨便纖絲或常 係織物或^继或未膨服。概塾亦可含玻璃纖維。襯墊雖可 V、、’ 或非織物，較佳襯墊為織造的襯墊。 本‘明=：製的氈能組合成層合織物供過濾用。可與 塾用以作成據器織物的附加組分包括過 或另外附著_ t4 ϊ物料諸如多孔PTFE骐，ptfe膜或疊層 如質二_物或網構或各種纖維 或網構之i入：、δ物璃、碳或聚酿亞胺製成織物 之其他物‘：，&其他㉟合期望用途的溫度與化學環境
O:\57\57325.ptc 理本換合物以製範用典型纺織設備摻合及處 二_^^定量之雙料玻璃纖維與不捲纖維（及隨意
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發明說明（6) 第一纖維組分）合併在一回絲機上摻混。 :=理機處理成均勻内聚網構交疊作纖維被？交\被隨: 雙成成範或者鋪放成襯墊後針孔穿成：塾:b 作總田梳理機内單純用雙料玻璃纖維時纖維之蓬聳或絮狀 纖維在梳理機入口處積聚成一纖維圖形成栓塞。同拉 :::凝亦避免梳理機之齒自纖維團塊 纖唯： 至足夠作一黏結網構。添加至少等量不捲以低 纖維3散度並防止栓塞生成。可使梳理機齒能抽拔大量 ，··、#乍黏結鱗構。因此，文内用辭、、能梳的"界
公m速度製成内聚黏附網構之摻合物&理 口第二組份捲縮纖維並不重大衝擊此摻合物加工。 J 咸知不捲曲纖維在紡織設備中無法典型梳理或加工， ^管曲或捲縮的纖維之處理能由添加不捲纖維改善頗為意 本發明所用纖維隨便摺皺或不捲或雙料玻璃纖維可具夕 種纖維切斷長度》本發明用纖維之段長一般範圍自約f至^ 吋，較佳自約1至3吋。本發明三纖維摻合物捲縮纖維缸八 之每吋捲數至少應係7。 刀 此等摻合物適用於製造濾氈，本發明人等已發現特別合 用摻合物係含約1-30重量％雙料玻璃纖維、約卜6〇重量％ ^ 捲纖維與約10-98重量％由含氟聚合物製之捲曲纖維的緊密 摻合物’其中不捲纖維含量等於或大於雙料玻璃纖維。一 種特別可取的不捲纖維係|，DE”型玻璃纖維，特佳含氟聚人
4/3572 案號 88102847 五、發明說明（7) 可製造含約70重量％玻璃的含氟聚合物濾氈一 在此等重量範圍内經發現含約2 〇至2 5重量％雙料玻璃纖 維、約30至50重量DE"型玻璃纖維與25至50重量％PTFE捲 縮纖維之魅特別有效◊在此較佳範圍内有二種明確組合物 將在以下實例中例證。 a此等二組份#合物内已發現雙料玻璃纖維的實用上限稍 咼過約30重量％。約25重量％以上時纖維混合物開始變成起 毛，以致更難梳理約30重量％雙料玻璃纖維之摻合物成為 ，勻的内聚網構。使用或製作三組份摻合物時總計約7〇重 量玻璃亦認係實用上限。因為玻璃纖維（雙料加"DE，，型或 其，型直玻璃纖維）在約7 〇重量％以上時内聚網構不能用。 前述三種纖維的混合物用典型紡織設備加工製氈。典型 方法中定量之雙料玻璃纖維，不捲"DE"型玻璃纖維&ρτρΕ 纖維合併在回絲機上摻混。所得摻合物隨後經梳理機處理 2網構交疊作成纖維被絮。&疊被絮於是能用針軋直 ，成浼或者較佳能鋪在織造或非織的襯墊上，然後打 ===作跳塾。襯墊典型含pTFE纖維或ρτρΕ與玻 =物。範或乾塾於是技術上所知用典型設備與處：侔隹 ::。彳用張布架減輕在烘箱内過度收縮。本發明的： 玻：έ量濾氈或氈墊與以往#術有； 歸相比時有同等或更佳過遽效率。纖择各里之延或 =鼓或鼓塾可層疊於—含氟聚合物普通為隱隔膜。 :”。將範或鼓墊以-氣化聚合物膠黏劑諸 氣丙稀共聚物及聚偏二乙氣烯
O:\57\57325.ptc ^:所知之膜包括多孔與擴張pm膜 473572
乙烯之類結合於膜常達成疊合。膠黏劑可成分散液用技術 上所知各種措施如塗敷或噴霧於氈的一面施行。氈或鼓塾 普通在黏附膜前乾燥。然後將膜蓋在膠黏劑上，輕加壓下 热化膠黏劑。製得組集合宜作濾袋運用。製造多孔ptfe與 PTFE疊層過濾材料用方法說明可參閱以下美國專利：” 4, 983,434 ; 4, 110, 392 ; 3, 953, 566 及4, 187’ 930。 以上說明及後文實例内在本發明中參考製作"D E ”型玻 璃，惟亦可用其他型玻璃。玻璃用辭"DE"說明直徑範圍如 ASTM D 578内規定。例如” DE"型玻璃之直徑範圍為5 84至 6. 8 5公忽。亦可有多種製成品能得自許多供應商。製作濾 範時典型以最小直徑的玻璃纖維為佳，因為此等小直徑纖 維產生更有效滤器。製造此項濾範採用玻璃之直徑範圍上 低限一般限於已知無身體危害的直徑大小。實際上根據本 發明濾氈製造中玻璃纖維如"DE"或"H11頗具價值。但如可 能想用本發明纖維摻合物作別的用途時可選擇任何大小範 圍内的玻璃纖維並有能方便及安全供期望用途之任何表面 處理。 以下實例意欲說明本發明’但非欲限制本發明。 實例 實例1 有3_2dpf與3"段長之TEFLON牌PTFE纖維用回絲機及空氣 輸送設備摻合ΜIRAFLEX牌雙料玻璃纖維。用此同一設備及 加工法摻合n DE"型玻璃定長纖維及pTFE作對照。此對照纖 維摻合物包括75%重量3.2dpf與3"段長之PTFE纖維及25%重 量切斷至2"段長的"DE"型玻璃纖維》
O:\57\57325.ptc 473572 案號 88102847 年 月 曰 修正 五、發明說明（9) 製作雙料玻璃纖維、皺縮PTFE纖維與” de"型玻璃纖維之 幾種實驗摻合物’纖維混合物梳理加工成網構。纖維摻合 物如下《百分率係對總摻合物的重量比。 1. 33%/20%/47% PTFE纖維/雙料玻璃纖維/"DE”型玻璃 纖維 2. 40%/30%/30% PTFE纖維/雙料玻璃纖維/"de"型玻璃 纖維 3. 40%/20%/40% PTFE纖維/雙料玻璃纖維/"de"型玻璃 纖維
4. 50%/20%/30% PTFE纖維/雙料玻璃纖維/"de"型玻璃 纖維 以75% PTFE纖維/2 5% " DE"型玻璃纖維摻合物為對照。 對照在梳理機上操作以確定梳理系統功能適當。摻合物 # 1無須調整梳理機而順利運轉梳理。此三組份的摻合物在 梳理機下、、糾紛〃最小，破碎玻璃纖絲出現甚至比對照更 低。製造幾碼之氈供測試。 摻合物# 2亦能接受加工，但勉強如此。由觀察處理顯知 雙料玻璃含量較高的摻合物將不能合意處理。
摻合物#3 ' #4運作順暢，與摻合物#1情形甚相近似。用 摻合物#4製造幾碼氈供試。 自試樣# 1與#4所製的二塊氈經測試二者 均具優越遽過作用，亦皆有改進耐磨性。…
第12頁 473572 _案號 88102847_年月日_ 五、發明說明（10) 產 試樣 試樣 纖維摻合物 對照 4 1 重量％ 75/25 50/20/30 32/20/47 氈的性質 非熱固試樣 氈（g/m2) 475 547 486 基重面（g/m2) 345 417 356 墊（g/m/2 ) 130 130 130 熱固試樣 l€(g/m/2) 518 549 480 面（g/m/2) 388 419 350 厚度mm 1.36 1.66 2.32 密度g/cm3 0. 35 0.33 0.21 耐磨試驗：5 N壓力時5 0 0循環 240 °C時熱固2分鐘 %失重 24.5 13.9 8.8 %失厚 100 50.9 46.2 可見襯墊 (循環） 200 300 500 3 0 0 / 2 9 0 °C時熱固2分鐘 。第一系列 %失重 15.6 14.2 4.2
O:\57\57325.ptc 第13頁 473572 案號88102847 年 月 a 修正 五、發明說明（11) %失厚 52.9 46.7 26.2 壓力可見襯墊 (循環） 200 300 無 300/290 °C時熱固2分鐘 。第二系 列 %失重 15.7 12.3 6.4 °/。失厚 38. 5 37.6 28. 4 壓力可見襯墊 (循環） 200 200 500 自由收縮：300 °C時1小時 非熱固試樣 M-D/X-DC%) 5/13.5 2/9 1/4 240 °C時熱固2分鐘 M-D/X-D(°/〇) 4/9.5 1/6 1/2 3 0 0 / 2 9 0 °C時熱固2分鐘 M-D/X-D(°/〇) 1/2 0.5/2 0.5/1
O:\57\57325.ptc 第14頁 473572 _案號88102847_年月日_ 五、發明說明（12)
表（續） 試樣 對照 4 1 過濾鐵物性質： 重量 g/m2 546 549 486 厚度 mm 1.25 1. 45 2.00 密度 g/cm2 0.437 0.379 0. 243 孔徑 (平均）公忽 空氣滲透性 20.9 20. 7 25 .8 1/dm2/分鐘 210 188 312 循環次數 對照 4 1 過渡績效： 塵屑，2 5 °C 20 1.14 1. 56 5. 洩漏 2 5 °C 60 2.14 2. 29 11. (mg/m3) 100 3.22 3.00 28. 25 0 °C 100+20 5. 03 4.42 132 塵屑 2 5 °C 20 199 152 440 持留 25 °C 60 229 192 521 (過濾介質上/内）25 °C 100 238 205 561 (g/m2 ) 250 °C 100+20 257 273 578 O:\57\57325.ptc 第15頁 473572 ___案號88102847__年月日_ 五、發明說明（13) 試驗 25 °C 20 4.93 5.7 5.13 期間 25 t 60 8.89 11.2 8. 83 (小時） 25 t 100 11.4 14.4 11.5 250 °C 100+20 19 24.9 16. 3 上表内用以下測試法衡量過濾材料績效：塵屑洩漏係根 據Verein Deutscher Ingenieure方法No. 3926 測量，磨 蝕係根據DIN方法53528用500循環於15N壓力測量；透氣性 係根據DIN方法53887測量，相當於ISO方法9237。
對照例 TEFLON牌有3. 2 dpf與:T段長的PTFE纖維與MIRAFLEX牌 雙料玻璃纖維用回絲機與空氣輸送設備摻合。用此同一設 備與處理摻合"DE"型玻璃定長纖維與pTFE作對照。此對照 纖維包括75%重量有3.2 dpf及3"段長的PTFE纖維，與25% 重i切成2段長之D E"型玻璃纖維。製得三種不同實驗摻 合物重量比： 5· 75%/25% PTFE纖維/雙料玻璃纖維 6 · 4 0 % / 6 0 % P T F E纖維/雙料玻璃纖維 25%/75%PTFE纖維/雙料玻璃纖維 =照為75% PTFE纖維/25% "DE”型玻璃纖維摻合物£ 从Iΐ ί理全部四種實驗摻合物試樣製氈。對昭試樣 地梳理成網構。此試驗證明設備裝置工作。 此等實驗摻合物在實用條件下無一能成功：：理。 物5要求極低梳理速度（每分鐘2公尺以下）邢ς 成功
4勿6非常鬆散，顯示沿用每金鐘1公尺以下二成f $ -；----1—可工里1 Α尺以下的梳理速度
O:\57\57325.ptc 第16頁
473572 案號 88102847 年 月 曰 五、發明說明（14) 用手施助加料 纏"。梳理期 積於設備下》 嘗試改進橘_ 輥轉度雖經改 維脫落如此< 璃纖維起始重 含里上超過對· 玻璃纖維之網
纖維入梳理機之雙料玻璃纖維、 間雙料玻璃纖維顯現破碎，墮二糾 摻合物7不加料入梳理機。堡洛梳理機而堆 f系統容許摻合物6的鬆散度。加料系統* 善，加纖維於梳理機仍然困難，雙料玻螭纖 ，以致所製網構僅3〇%_纖維摻混物進料中破 量％之一半。玻璃/pTFE纖維網構的雙料玻璃 照之此唯一看得見的改進製得有25°/。'_ DE"型 構與敦認為不實用。
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Claims (1)

  1. 473572 案號 88102847 曰 修正 六、申請專利範圍 切能梳理纖維之摻合物，包括雙成份玻璃纖維 維，其中不捲縮的纖維含量等於或大於雙成份 含量。 請專利範圍第1項之摻合物，另含第三纖維， 係捲縮纖維。 請專利範圍第1或2項之摻合物，其中不捲縮的 纖維。 請專利範圍第2項之摻合物，其中第三纖維為 纖維。 請專利範圍第4項之摻合物，其中含氟聚合物 聚四氟乙烯及聚氟烷基乙烯基醚纖維。 用申請專利範圍第1，2或4項之摻合物製作之 構。 用申請專利範圍第1，2或4項之摻合物製作的 1 . 一種密 與不捲縮纖 玻璃纖維之 2. 根據申 其中該纖維 3. 根據申 纖維係玻璃 4. 根據申 含氟聚合物 5. 根據申 纖維係選自 6 . —種使 均勻内聚網 7. —種使 賓毛。 8. 根據申請專利範圍第2或4項之摻合物，其中摻混物為 約1 - 3 0重量％雙成份玻璃纖維，約1 -6 0重量％不捲纖維與約 10-98重量％之含氟聚合物纖維。 9. 根據申請專利範圍第8項之掺合物，其中不捲纖維係 ” DE"型玻璃。 1 0 . —種製作含雙成份玻璃纖維的氈之方法，包括： (a)製作一種密切的纖維摻合物含雙成份玻璃纖維與 不捲的纖維，其中不捲纖維含量等於或大於雙成份玻璃纖 維；
    O:\57\57325.ptc 第18頁 473572 _案號 88102847_年月日__ 六、申請專利範圍 (b) 將此纖維通過梳理機加工形成内聚網構； (c) 交疊此内聚網構製成纖維的交疊襯墊；及 (d) 將此交疊棉網針軋成觀。 1 1 .根據申請專利範圍第1 0項之方法，其中（d )步交疊棉 網針軋成一 襯塾。 1 2 .根據申請專利範圍第1 0項之方法，其中（a )步内摻合 物又含第三纖維，其中該第三纖維係一捲縮纖維。 1 3 .根據申請專利範圍第1 2項之方法，其中（a)步内纖維 摻合物含約卜3 0重量％雙成份玻璃纖維，約卜6 0重量％不捲 纖維，與自1 0 - 9 8重量％之捲縮的含氟聚合物纖維。 1 4.根據申請專利範圍第1 3項之方法，其中（d )步内交疊 棉網針軋成一氈襯墊。 1 5.根據申請專利範圍第1 4項之方法，其中襯墊含聚四 氟乙烯纖維或聚四氟乙烯與玻璃纖維之混合物。 1 6. —種濾氈，含分層的纖維被絮與襯墊，分層的纖維 被絮包括約卜3 0重量％雙成份玻璃纖維，約1 - 6 0重量％不捲 纖維及約1 0-98重量％之捲縮纖維之密切摻合物，其中不捲 的纖維含量等於或大於雙成份纖維量。 1 7.根據申請專利範圍第1 6項之濾氈，其中不捲的纖維 係玻璃纖維，捲縮的纖維則選自芳香族醯胺纖維與含氟聚 合物纖維。 1 8 .根據申請專利範圍第1 7項之濾氈，其中被絮含約2 0 重量％雙成份玻璃纖維，30至50重量DEn型不捲的玻璃纖 維與50至30重量％之聚四氟乙烯纖維等。
    O:\57\57325.ptc 第19頁 473572
    O:\57\57325.ptc 第20頁
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ATE220136T1 (de) 2002-07-15
CA2319541A1 (en) 1999-09-02
KR100523312B1 (ko) 2005-10-24
DE69902010D1 (de) 2002-08-08
CN1292049A (zh) 2001-04-18
RU2213819C2 (ru) 2003-10-10
JP2002505384A (ja) 2002-02-19
JP4240811B2 (ja) 2009-03-18
AU749386B2 (en) 2002-06-27
US20020106958A1 (en) 2002-08-08
EP1060303B1 (en) 2002-07-03
US6365532B1 (en) 2002-04-02
US6151763A (en) 2000-11-28
US20030003298A1 (en) 2003-01-02
EP1060303A1 (en) 2000-12-20
BR9908035A (pt) 2000-12-05
CA2319541C (en) 2007-03-20
AU2760899A (en) 1999-09-15
DE69902010T2 (de) 2003-03-06
US6468930B2 (en) 2002-10-22
US6010785A (en) 2000-01-04
US6559080B2 (en) 2003-05-06
WO1999043880A1 (en) 1999-09-02
KR20010041258A (ko) 2001-05-15

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