TWI232248B - Process for producing non-woven fabric for the production of clean room clothing and the non-woven fabric thereby obtained - Google Patents

Process for producing non-woven fabric for the production of clean room clothing and the non-woven fabric thereby obtained Download PDF

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Publication number
TWI232248B
TWI232248B TW089115570A TW89115570A TWI232248B TW I232248 B TWI232248 B TW I232248B TW 089115570 A TW089115570 A TW 089115570A TW 89115570 A TW89115570 A TW 89115570A TW I232248 B TWI232248 B TW I232248B
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Taiwan
Prior art keywords
woven fabric
scope
woven
patent application
water column
Prior art date
Application number
TW089115570A
Other languages
English (en)
Inventor
Robert Groten
Holger Schilling
Arnold Bremann
Der Muhlen Hartwig Von
Original Assignee
Freudenberg Carl Kg
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Application filed by Freudenberg Carl Kg filed Critical Freudenberg Carl Kg
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Publication of TWI232248B publication Critical patent/TWI232248B/zh

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Classifications

    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/10Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically
    • D04H3/11Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically by fluid jet
    • AHUMAN NECESSITIES
    • A41WEARING APPAREL
    • A41DOUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00Materials specially adapted for outerwear
    • A41D31/04Materials specially adapted for outerwear characterised by special function or use
    • A41D31/12Hygroscopic; Water retaining
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/12Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/14Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005Synthetic yarns or filaments
    • D04H3/009Condensation or reaction polymers
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/016Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the fineness
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/018Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the shape
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/14Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/608Including strand or fiber material which is of specific structural definition
    • Y10T442/614Strand or fiber material specified as having microdimensions [i.e., microfiber]
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/637Including 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
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/689Hydroentangled nonwoven fabric
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/69Autogenously bonded nonwoven fabric

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Woven Fabrics (AREA)

Description

1232248 A7 ______B7_ 五、發明說明(I ) 詳細說明 枝術領域 除塵室用的護衣的作用,係將室中所製或所加工的產品 (例如微電子零件,醫藥,光學玻璃纖維)保護以免受人體 景> 響(此處人體係排放有害粒子的「來源」,例如灰塵、 皮膚屑粒子、細菌)。 因此,對於製造此類護套用的材料的重要需求爲屏障 作用。護套材料須對人體不斷釋放出的粒子(皮膚屑、斷 髮片段、細菌等)以及由紡織品之內衣釋出的纖維斷片阻 lea住’以避免除塵室空氣及產品受污染。當然,這種材料 本身也不能將纖維部分或其他成份排放到除塵室空氣中。 除了所需的屏障作用外,該護套層材料須能承受高機 械負荷,特別是有高的再撕裂及撕裂強度,以將由於外來 作用或正常穿著造成的應力造成之裂縫或孔形成的危險減 至最低。爲了使該護衣也能多次再使用,該材料還要能承 受一般洗濯或淸洗程序(例如在高壓釜中消毒)而儘量不 受損’亦即對於濕機械磨損及起球(疵點)(Pilling))有抵 抗力,且其尺寸穩定不變。 除了屏障作用與濕機械抵抗力外,這種護衣材料特別 是用於微電子工業中者須有抗靜電作用,換言之,這種護 衣須不受到穿著時不可避免的摩擦而帶了過量的靜電荷, 或者是能將一些靜電荷迅速消散或導離。這點係必需者, 以便一方面使敏感的微電子元件不會受到點狀放電損壞, 另方面也不會從周圍空氣吸收灰塵粒子(否則這些灰塵粒 3 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) " -------------K-----訂-----—線 (請先閱讀背面之注意事項再填寫本頁) A7 1232248 _ B7____ 五、發明說明(*/) 子可能會跑到衣材料表面,而在以後可能再排放出來)。 此外,該護衣材料也要有夠高的穿著舒適度,換言之 ,在垂落(Fall),手感(Griff英:hand feeling)及光學性質方 面要有儘量像紡織品的特性,而且要有空氣活性(透氣) 及保暖絕熱,以避免穿著的人過度的流汗(Schwitzen)或受 寒(Frieren) 〇 習知技術 人們知道使用最細纖度的合成纖維或合成長絲製造除 塵室護衣材料。此外「最細纖度」一詞係指纖度小於ldtex 的纖維,它也被稱爲「微纖維」。對於纖度小於〇.3dtex的 微纖維也用「超微纖維」一詞。 一般以微纖維或微長絲的梭織布或編織物爲基礎的護 衣材料分數道程序步驟製造。首先由聚合物原料紡成微纖 維或長絲。然後將它們再加工成紗,該紗如有必要還可通 過一道隨後之締捲程序。最後由此(締捲過的)微纖維或微 長絲紗織成基本的護衣材料。在力織程序,還可將導電的 紗呈現則圖案方式例如呈條紋狀或方格紋(Kar〇英 ·· carreau 或check))排列織入,以達到所需之抗靜電作用。舉例而言 ’導電紗含有具有含碳黑或石墨的核心或函殻的核心/函 威長絲’或者如金屬纖維或鍍金屬的長絲。所需的屏障功 能及高度的(濕)機械負荷性係利用微纖維的一種極密且 規則的纖合而達成。但這種高織密度及主要與表面平行的 長絲走向就材料透氣活性觀之却是不利的。它只有少許微 孔隙可使水蒸氣經該微孔隙透過布。 4 本紙張尺度適用中國國-- ---------------:-----訂---------線 (請先閲讀背面之注意事項再填寫本頁) 1232248
五、發明說明($ ) 蒦衣材料屏障作用及透氣活性造成的有問題(互相 揮丁突)的性質的組合可藉使用粒子密度高但却透水蒸氣的 月旲^成°這種「微孔隙」層可藉(例如)層疊(層壓、膠 3 ) ( Laminierung 英:laminating )或直接擠壓 (Dii*ektextrusi〇n 英:direct extrusion)而施到普通密度的紡織 品材料’以得到具紡織品性質的材料。 胃密度微長絲布以及由透氣活性屏障膜及紡織品構成 的複合材料的製造程序因而較花時間。較易製造的替代方 案爲微纖維不織布。 以聚乙烯荷基礎的平坦砑光的微長絲紡紗不織布可滿 足這種屏障要求,此外可很廉價地製造。但這種材料實際 上却密不透氣及不透水,且見有箔片式特性,換言之,其 穿著舒適性低。此外,它們的耐洗性或耐淸理性不足,因 此它們限於用在一次用後即丟(Emweg)或拋棄式(Wegwerf 英:disposable)的護衣方面用途。 由多片段式或由多核心式短纖維製造的微纖維不織布 (該纖維在排放成不織布以及可能之預鞏固作業後,利用 溶劑或水柱劈分成個別的微長絲)在有良好的屏障作用的 場合下,其穿著舒適度須遠比上述之高砑光微長絲紡織不 織布更好。 舉例而言,歐洲專利0624676提到一種方法,說到如 何能利用水柱劈分製造具有極高塡充密度及良好屏障作用 的微纖維不織布。但這種不織布缺少柔軟性及熱絕緣性質 。因此人們認爲使用藉水柱鞏固的不織布以作護衣所能的 5 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) (請先閲讀背面之注意事項再填寫本頁) —I-----訂---------線一 1232248 A7 ____B7_____ 五、發明說明(if) 應用範圍很有限。因此上述專利案中提到另一種方法,其 中不使用水柱技術。 在國際專利(PCT)申請案W0 98123804中提到與上述專 利案不同的方式,係將不織布在水柱劈分之前,首先作熱 作點狀熔接。如此可防止不織布在水柱劈分時,與水柱機 組的篩網帶鈞掛在一起,然後在揭起時受損甚至破壞。另 一方面,須因此達到較高程度的纖維劈分,如此達成較佳 皂屏障性質及手感(Tast)。 在歐洲專利97 108 364中也提到將不織布應用領域擴 充。其中提到由很細的長絲製造不織布,該布須具有與梭織 式編織的紡織品有相當的性質。這種纖度0.005〜2dtex的 很細的長絲利用水柱劈分由熔紡之捲曲(Kraeuseln英 ••Crimp)或未捲曲的多成份多片段長絲(其纖度〇.3dtex〜 lOdtex)產生。如此所得的不織布還可用各種不同方式作 後加工,例如利用熱固定,點上膠等),以達成特別應用 性質。依此方法製造的紡絲不織布特別適合製造衣著及其 他紡織品產物。 本發明的說明 在以下的硏究中,出乎意料地得知··如果將上述EP 專利案97108364所製的不織布用纖度小於〇.2dtex的超微 長絲構成’並另外作凹凸軋花(拷花)(Praegekalandrieren 央:calemdering) ’則該不織布極適合製造除塵室的護衣, 此超微長絲本身利用水柱劈分由纖度小於2dtex的多成份 長絲產生,該多成份長絲係用熔紡程序形成,用空氣動力 6 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) ---- ------------Γ-----訂---------線 (請先閱讀背面之注意事項再填寫本頁) 丨 1232248 A7 ; _B7__ / "" * —- ..- 五、發明說明(ΐ ) ! / . | 方式牽伸,且用水柱作預結合。 以下本發明提到一種新式不織布材料及其製造方法步 驟。此不織布滿足一種可多次再使用的除塵室護衣材料的 所有要求。它的特色爲具有高度屏障作用,高機械負荷性 及尺寸度量的穩定性,有效率的抗靜電作用及高度穿著適 度(透氣性及紡織品性質)。這些有利的性質即使在多次 一般的洗濯或淸洗程序(多達30循環)仍保持在足夠的範 圍。迄今利用具劈分之最細長絲的不織布,一般認爲是不 可能同時達到這些性質的。 此不織布由纖度小於0.2dtex的超微長絲構成,該超微 長絲由纖度1.5〜2dtex的未捲曲的初級長絲製成。所用之 初級長絲宜爲—^成份多片段長絲,由二種不相容的聚合物 構成,特別是由聚酯與聚醯胺構成。這種二種成份的長絲 係習知者,如EP97108364所述。聚酯的比例選設成比聚醯 胺高,宜在60〜70%重量之間。爲了達成所要的抗靜電作 用。故該二種聚合物之一或全部都加有對應之長期有效( 亦即不能被取代或交換的)添加劑。舉例而言,這種抗靜 電作用可藉混入碳黑或石墨或混以具有強親水特性的聚合 物或具(半)導電性質的聚合物達成,必要時還可加入相 容化的藥劑。此初級雙成份長絲的橫截面呈橘瓣形多片段 構造(「派餅構造」)。這些片段包含交替的不相容之加 有添加物的聚合物。這種習知的長絲橫截面對於以下所述 之超微長絲的產生作用顯示出很有利。爲了達成該不織布 之所要的抗磨強度及小的起球(Pilling)傾向,故在一般的空 7 ---------訂---------線 f請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) 1232248 A7 ___B7___ 五、發明說明(G ) (請先閱讀背面之注意事項再填寫本頁) 氣動力牽伸後,將該長絲作另一道牽伸同時作熱煮處理 (Tempera 英:anneal)程序(熱通道牽伸「Hot-Channel Stretching」)。 如此所產生的初級長絲利用特殊機組以不規則排列放 在一條移動的帶子上,然後利用傳統水柱技術預先鞏固, 亦即使它們以機械方式互相纏結(verschlingen英:snarling) 。然後將此預鞏固的初級長絲不織布在穿了孔的轉鼓上多 次的將兩面施以尚壓水柱,如此該初級長絲實際上已崩解 成其個別成份,亦即崩解成個別的超微長絲,且這些超微 長絲同時極均勻地互相糾纏(Verwirbeln英:entangle)。利 用這種程序步驟產生一種微纖維不織布,它由於極高不規 則及糾纏的纖維構造,故一方面具有所需之屏障作用,但 另一方面仍有充分的透水氣性。 爲了要改善在洗濯及淸洗時的尺寸度量穩定性,故該 微纖維不織布在水柱劈分及隨後之乾燥作業後在張力之下 受到一道熱空氣熱固定程序。然後將該不織布在具有特別 刻紋(Gravatur英:engraving)滾子的研光機中作凹凸壓花 (Pragekalandrieren,英:embossing calender),以提高度量尺 寸穩定性及耐磨性。製成之不織布的基重爲80〜150克/平 方米,且宜95〜115克/平方米。 [實例] 首先由二成份長絲[由70%聚(乙烯對苯二甲酸酯)及 30%聚(六甲撐己二醯胺)構成]製造一種均勻厚度之不織布 基重(FlSchengewicht,英:area density),(面密度,單位面 8 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) A7 1232248 ____B7___ 五、發明說明(1 ) 積重量95克/平方米。初級長絲的纖度1.6dtex,且含有 一六個片段,它們交替地由聚酯或聚醯胺構成。此熔紡的 長絲用空氣動力方式牽伸,不規則地放在一帶上,並送去 一水柱處理單元,在其中使長絲預鞏固。然後將預鞏固的 不織布用高壓水柱處理,如此使初級長絲劈裂成個別的片 段,且將這些片段再變成紗球(KnSuel,英:yarn boll)。此 水柱劈裂作業係由不織布兩面作數次。產生的超微長絲的 平均纖度O.ldtex,且未捲曲。然後將此預鞏固的不織布用 高壓水柱處理,如此該初級長絲劈裂分成個別的片段,且 個別片段再捲曲。水柱劈分作業由不織布兩面作數次。產 生的超微長絲的平均纖度O.ldtex,且不捲曲。然後將此不 織布乾燥並作鐫印砑光。如此所製的不織布的過濾效率, 對於-0.5//m的粒子爲約60%,對的粒子約98%。 用標準洗濯劑在40°C作洗濯處理二十次後’過濾效率只下 降一點點,對-0.5//m的粒子約55%,對-l//m的粒子約 95%。 9 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) ------------MwrlIl·—— 丨訂---------線 (請先閱讀背面之注意事項再填寫本頁)

Claims (1)

  1. 3988 2$ ABCD 1232248 六、申請專利範圍 之間。 8·如申請專利範圍第5項之不織布,其中: 該不織布之單位面積重量在80〜150.克/平方米之間, 且宜在95〜115克/平方米之間。 9.如申請專利範圍第5項之不織布,其中: 該初級長絲的橫截面具有柑橘瓣狀長絲片段構造,其 中該片段交替地各包含該二種不相容的聚合物的一種。 10·如申請專利範圍第5項之不織布,其中: .該不織布在作水柱劈分之後再做一道附加的熱固定作 業然後再作熱固化。 11·如申請專利範圍第5項之不織布,其中: 該二種不相容的聚合物中的一種或二種包含一種永久 性抗靜電作用的添加劑,如碳黑或石墨,或一種具有出色 之親水特性的聚合物〔例如一種聚(醯胺嵌段醚)共聚物 〕或一種(半)導電性質的聚合物〔例如一和聚苯胺或_ 乙炔衍生物〕。 12·如申請專利範圍第5項之不織布,其中: 該超微長絲係不捲曲者。 度適用中國國家標準(CNS) Α4規格(210 X 297公釐) ........................ φ —i-------訂---------……-線· (請先間讀背面之注意事項再塡寫本頁) 告本 申請曰期 案 號 Stii ttjv 類 別 (以上各欄由本局填註) 發明 新型 名稱 1232248 —S量 -Μ- C4 备—專利説明書 中 文 繼除塵室用·罐衣用的不織布的方法與如麵製之不織布 英 文 Process for producing non-woven fabric for the production of clean room clothing and the non-woven fabric thereby obtained 姓 名 國 籍 發明 創作 人 住、居所 1. 羅伯特.葛洛特 2. 侯爾格席林 3. 阿爾諾德布雷曼 4. 哈特維希穆勒 1·法國2.3.4.德國 1·法國F-68280桑德霍夫,里爾路20號 2·德國69502黑爾姆斯巴哈,克萊斯特街5號 3·德國69469酒鄕,主街46號 4·德國69221多森海姆,史坦布克路7號 裝 訂 姓 名 (名稱) 國 籍 卡爾佛洛依登堡雨合公司 德國 線 三、申請人 住、居所 (事務所) 代表人 姓 名 德國]>69469威因赫姆,赫奈爾威格街2-4號 1. 赫伯特.摩登豪爾 2. 尤阿辛.洪 本紙張尺度適用中國國家榡準(CNS ) Α4規格(2丨Οχ:297公慶) 3 厶厶 Β8Λ) ^ Ί 年1月(3日修正/更/正補充 六、申請專利範圍 1. 一種製造可多次再使用的除塵室護衣用的不織布的 方法’其中由熔融物紡成纖度小於2dtex的多成份長絲( 以下稱「初級長絲」),用空氣動力方式牽伸,直接集層 成不織布,且受到一道水柱預鞏固作業,然後利用水柱劈 分將該初級長絲劈分成纖度小於〇.2dtex的超微長絲,其劈 分方式係將該預鞏固的不織布多次交替地由兩邊施以高壓 水柱且該不織布在作水柱劈分及隨後的乾燥作業後拷花。 2:如申請專利範圍第1項之方法,其中: .該初級長絲在該空氣動力式牽伸後作一道附加的牽伸 及熱者程序。 3.如申請專利範圍第1或第2項之方法,其中: 該初級長絲之水柱劈分的方式·係將該預鞏固的不織 布輪流地由兩面施以高壓水柱。 4·如申請專利範圍第1或第2項之方法,其中: 該水柱劈分作業係在一個具旋轉的篩網轉鼓的機組上 進行。 5. —種不織布,其係利用申請專利範圍第1或2項之 方法所製者,其中: 該初級長絲爲由二種不相容聚合物構成的二成份長絲 ,特別是由一種聚酯及一種聚醯胺構成者。 6. 如申請專利範圍第5項之不織布,其中: 該聚酯比例比聚酯胺比例高。 7·如申請專利範圍第6項之不織布,其中: 該聚酯比例(相對於不織布總重量)在60〜70%重量 用中國國家標準(CNS)A4規格(210 X 297公愛〉 (請先閲讀背面之注意事項再塡寫本頁) 訂 線
TW089115570A 1999-07-26 2000-08-03 Process for producing non-woven fabric for the production of clean room clothing and the non-woven fabric thereby obtained TWI232248B (en)

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