TW434341B - Nonwoven web comprising arched fibers - Google Patents

Nonwoven web comprising arched fibers Download PDF

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Publication number
TW434341B
TW434341B TW088111750A TW88111750A TW434341B TW 434341 B TW434341 B TW 434341B TW 088111750 A TW088111750 A TW 088111750A TW 88111750 A TW88111750 A TW 88111750A TW 434341 B TW434341 B TW 434341B
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Taiwan
Prior art keywords
woven fabric
woven
patent application
axis
plane
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TW088111750A
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Chinese (zh)
Inventor
Charles B Hassenboehler
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Univ Tennessee Res Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • AHUMAN NECESSITIES
    • A44HABERDASHERY; JEWELLERY
    • A44BBUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B18/00Fasteners of the touch-and-close type; Making such fasteners
    • A44B18/0003Fastener constructions
    • A44B18/0011Female or loop elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/12Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • 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

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

This invention relates to a nonwoven web comprising arched filaments aligned within 45 degrees of a minimum tensile modulus direction axis. The present invention is useful in mechanical fastening, filtering applications, and for nonwovens utilizing bias stretch. The invention further relates to methods for making such a web.

Description

經濟部智慧財產局員工消費合作社印製 五、發明說明(丨) 發明背.量 1.發明領域 本發明是有關於包括成弧形纖維之不織布,該成弧形 纖維的排列是在與最小拉伸模數方向軸之45度之內。本發 明爲使用在機構固定、過濾應用、以及利用斜線延伸的不 織布。本發明更是有關於製造此類不織布的方法。 .2.習知按術說明 在機構固定應用上已經在使用纖維,典型是指其,,彎鉤 和線圈(hook and loop) ”系統。該纖維包括商標Velcr0™ 下所販售的產品。在彎鉤與線圏的固定系統中,一個包含 有鉤形的纖維經由將彎鉤插入線圈之中,以機械式固定到 另一包含有線圈的纖維上。習知技術中線圈包含有一軸柄 (stem)和一環狀的線圏,該軸柄由纖維表面向上伸出而 環狀的線圈爲附著在該軸柄上。該軸柄和線圈組合的形狀 相似於具有圓柱狀把手之放大鏡的形狀。該習知技術中要 製造彎鉤和線圏系統是很昂貴的。該系統的夾持力量受限 於線圏開口的尺寸。 空氣過濾系統包括有一過濾介質,該過濾介質必須有 足夠的孔隙以使得空氣通過過濾介質而攔住不欲的特定物 質。此類過濾器一般是由玻璃纖維製成。此類過濾器在用 途上受到限制且具有低壓力降的應用。傳統過濾介質的另 一個缺點爲一旦過濾纖維負載滿時,.將停止有效地攔住特 定物質。 本紙張尺度適用中國國家標準(CNS)A4規格(210 x 297公爱) --_--- Η----------------訂-----r--- ·線 1 IP. (請先閱讀背面之注意事項再I寫本頁). 4 34 3 4 1 a? _B7 ______— 五、發明說明(&gt; ) 發明摘沭 —本發明的裝置是關於一種不織布或是網狀平面’其包 含有一機械方向軸和一界定最小起始拉伸模數方向的軸Ω ,之後在本文中稱爲”最小拉伸模數軸”。該起始拉伸模數 是在不織布材質具有彈性性質的曲線範圍上由該不織布之 應力-應變曲線的斜率來定義。已知對於在習知技術中普遍 的技術,當應力增加時,應力-應變曲線的斜率最終會增加 ’並越過起始拉伸模數所定義的斜率。機械方向軸是以昆 機械在製造不織布時,不織布平面的行進方向來定義。 本發明進一步包括至少一·個伸出不織布平面的弧形纖 維。每個弧形纖維包含有二個連結到不織布平面的基礎區 域、連結到每個基礎區域並且伸出不織布平面的支柱區域 、以及連接到每個支柱區域的成弧形中心區域。多數.的成 弧形纖維的置放須使得基礎區域界定一在拉伸模數方向軸 Ω之45度內的軸。在本文中所使用的該詞語”在45度之內 ”是指正負45度。 經濟部智慧財產局員工消費合作社印製 在一不織布平面只含一或二個成弧形纖維的例子中, 在不織布平面中所有的成弧瑕纖維具有基礎區域,其界定 一在最小拉伸模數軸之45度內的軸。本發明很合適於各種 的衣料固定的使用,包括尿布、睡衣、幼兒衣料和醫用手 術衣,以及佈告牌等,但並非受限於這些^ 本發明亦關於在不織布上製造成弧形纖維的方法。本 發明的方法包括以一張緊裝置(tensioning device)而在機 械方向軸和交叉方向軸上夾緊不織布平面,及在包括多種 4 本紙張ϋ適用中國國家標準(CNS)A4規格(210 X 297公釐) '' 4 3434 1 A7 ________B7______ 五、發明說明(9 ) 纖維之不織布平面上施加一拉伸力及/或剪切力並熱硬化。 在纖維邊緣的附近,沿著機械方向軸施以剪切力。該力量 的大小將會部分地依據纖維的尺寸和組成而定。 S[式說明 圖1是本發明不織布平面的等角視圖。 圖2是本發明不織布平面的放大上視圖。 , 圖3A是由於剪切力所造成本發明不織布平面的放大 上視圖。 圖3B是本發明方法之較佳實施例的上視圖。 圖4是本發明方法之較佳實施例的上視圖。 圖5A是本發明方法之較佳實施例的方塊圖。 圖5B是本發明方法之較佳實施例的方塊圖。 較佳具體實施例說明 經濟部智慧財產局員工消費合作社印製 如同在圖1中所顯示的,本發明關於一種包括具有一 機械方向軸11、一交叉方向軸13和一最小拉伸模數軸9 之不織布平面10的不織布。在較佳具體實施例中,最小拉 伸模數軸是位在離交叉方向軸爲1 0到8 0度之間。 本發明進一步包括至少一成弧形纖維12,該每個纖維 都包含有二個連接到不織布平面的基礎區域14,和連接到 每個該基礎區域並且由該纖維平面伸出的支柱區域16。該 纖維進一步包括連接到每個該支柱區域的成弧彤中心區域 !8 ’其中多數的該成弧形纖維的置放使得基礎區域界定一 I 5 玉纸张尺i適用中國國家標準〈CNS)jV1規格⑽X 297公楚)' I4 34 3 4 B7 五、發明說明(ψ) 經濟部智慧財產局員工消費合作社印*'1^ 在最小拉伸模數軸9之45度內的軸。 本發明的上視圖爲顯示在圖2中。以相對於圖2中所 說明之最小拉伸模數軸之下而量測出的角度Θ是在多數該纖 維基礎端所定義之軸內的角度。在另一較佳具體實施例中 ,至少有三分之二的成弧形纖維的置放使得基礎端界定一 在最小拉伸模數方向之30度內的軸。 在較佳具體實施例中,纖維平面是從一熱塑性不織布 先質中形成。在另一較佳實施例中,將熱塑性不織布先質 拉長鍵結或是加熱鍵結。 在較佳具體實施例中,不織布進一步包括一種連接到 不織布平面上的基材I5,其顯示在圖1中。在較佳具體實 施例中,基材包括熔噴性(meltblown)聚合物。在較佳具 體實施例中,該熔噴性聚合物爲聚丙烯、聚氨基甲酸·乙酯 、聚乙烯或聚酯,或是上述的共聚合物。在較佳具體實施 例中,基材係黏著性層壓到纖維平面。 本發明的不織布平面可能是由多種具有不同的纖維直 徑之不同纖維所製成。該不織布平面的纖維數目密度則部 分地爲纖維尺寸的函數。在本發明的較佳具體實施例中包 括一熱塑性不織布,該不織布平面在每平方公分上包含至 少20個成弧形纖維的平均成弧形纖維密度。該纖維密度可 以在每平方公分上包含有至少4〇個纖維之纖維密度之不織 布上經由施行本發明的方法來達成。 本發明爲特別合適於一機械固定器上,該機械固定器 是被用來連接含有彎鉤的物件,該彎鉤爲可解開插入本發 請 先 閱 讀 背 意 事 項 訂 、線 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) 經濟部智慧財產局員工消費合作社印製 4 34 3 4 ] A7 B7 五、發明說明(&lt; ) 明的成弧形纖維中。本發明的成弧形纖維比傳統的”線圈” 固定器具有一較大的表面積,該線圈固定器具有與本發明 成弧形纖維相同的半徑。此一增加的表面積,增加了來自 固定材料之纏繞帶的彎鉤嚙合住每個線圏的可能性D此製 造出的機械固定器具有優於先前技藝使用彎鉤和線圈類型 配置的剝離強度。在較佳具體實施例中,本發明的不織布 具有每公分不織布寬長條至少23公克的最小剝離強度。在 較佳具體實施例中,不織布平面可以裁切成長條,其可經 由使用一黏膠而連接到衣料上。 本發明亦關於一種在不織布中製造成弧形纖維的方法 ,如說明在圖3B、4、5A和5B中。如顯示在圖3B和圖 5A的方塊60至64中,在此本發明的第一方法包含充分地 加熱一不織布以使得其纖維在回應所施加的拉伸應力诗而 產生塑性變形;夾緊具有機械方向軸與交叉方向軸的不織 布平面;並且在機械方向軸11或是交叉方向軸13的方向 上施加拉伸力F。 在較佳具體實施例中,加熱和施加拉伸力是同時進行 的。這些步驟也可以在隨後進行。 在較佳具體實施例中,該力量是藉由一拉伸機器22來 施加,該拉伸機器包括在交叉方向軸的方向上夾緊不織布 並將其拉伸的夾緊元件24。在圖5A的方塊64中該力量爲 相當高。 在本發明第一方法的較佳具體實施例中,如顯示在圖 5A的方塊64中,拉伸力爲施加在交叉方向上,並且以高 7 (請先閱讀背面之注意事項再H本頁) 言 r 本紙張尺度適用中國國家標準(CNS)A4規格(210x297公釐) 4 34 3 4 1 A7 _B7____ 五、發明說明(&amp; ) --------------— (請先閱讀背面之注意事項再ls--本頁) 力量在各自交叉方向上延長至少15%,而使得機械方向有 相當大的收縮,造成一個或更多個成弧彤纖維伸出該不織 布平面。 在較佳具體實施例中,如顯示在圖3B中,位於不織 布平面機械方向上相對邊緣的二個機構藉由夾緊元件而連 接到不織布上,所以這些機構可以沿著交叉方向軸之相對 方向中施加一拉伸力。 在本發明第一方法中的另一較佳實施例,如顯示在圖 3A和圖5B的方塊74中,在機械方向上施加一拉伸力, 且其爲相當大以造成在機械方向上延長至少15個百分比, 而使得在各自交叉方向上有相當大的縮短,造成一個或更 多的成弧形纖維伸出該不織布平面。 •線 在較佳具體實施例中,如顯示在圖3A中,位於不織 布平面之交叉方向邊緣,與不織布平面滾筒相對的機構則 經由機械方向軸接附到不織布上。. 經濟部智慧时產局員工消費合作社印製 本發明的第三方法說明在圖4中。第三方法的第一步 驟爲夾緊一矩形的不織布平面,該不織布平面包含了多種 的纖維,以及至少二個在機械方向上相對的邊緣和二個在 交叉方向上相對的邊緣。該夾緊發生在機械方向邊緣附近 中的區域。在較佳具體實施例中,本發明的第三方法更包 含在交叉方向或是機械方向上對於該不織布延長至少10百 方比。在另一個較佳具體實施例中,不織布起初是爲機械 拉伸。在本文中所使用的術語”機械方向上相對的邊緣”是 指界定不織布平面在交叉方向上寬邊緣的二個邊緣。 _S ___ 本紙張尺度適用中國园家標準(CNS)A4規格(210 X 297公釐) 43434 7 A7 B7 五、發明說明() 第三方法更包含了在每個被夾緊邊緣附近直接施加1:ϋ 量F,所以該不織布平面受到相當大的剪切力’以產生至 少I2度的剪切變形,並且造成一個或多個成弧形纖維伸出 該不織布平面。此步驟說明在圖4中。可以使用此方法以 在不織布平面中製造成弧形纖維,在其中多數的成弧形纖 維的置放使得基礎區域界定了一在本不織布產物之最小起 始拉伸模數方向之45度內方向的軸。 前述本發明的揭示和說明爲舉例說明並且作爲解釋用 ,可在大小、形狀和材料、以及詳細說明的結構上做各種 的改變而不脫離本發明的精神。 ----------------------訂·------.—線 C請先閱讀背面之注意事項再1寫本頁) 經濟部智慧財產局員工消費合作社印製 適 度 尺 張 紙 本 9 公 X 10 2 /IV 格 規 4 )Α 5) Ν cc 準 標 家Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the Invention (丨) Invention Back. Quantity 1. Field of Invention The present invention relates to a non-woven fabric including curved fibers. Within 45 degrees of the extension axis. The present invention is for use in non-woven fabrics used in institutional fixation, filtration applications, and with diagonal lines. The invention further relates to a method for manufacturing such a nonwoven fabric. .2. The fibers are already being used in institutional fixing applications according to conventional instructions, typically referred to as "hook and loop" systems. The fiber includes products sold under the trademark Velcr0 ™. In the fixing system of the hook and the coil, a fiber containing a hook shape is mechanically fixed to another fiber containing the coil by inserting the hook into the coil. The coil in the conventional technology includes a shaft handle ( stem) and a loop of wire loop, the shaft shank protrudes upward from the fiber surface and the ring-shaped coil is attached to the shaft shank. The combination of the shaft shank and the coil is similar to the shape of a magnifying glass with a cylindrical handle The conventional technique is expensive to manufacture a hook and reed system. The clamping force of the system is limited by the size of the reed opening. The air filtration system includes a filter medium, which must have sufficient porosity This allows air to pass through the filter medium to block unwanted substances. This type of filter is generally made of fiberglass. This type of filter has limited use and applications with low pressure drop. Another disadvantage of filter media is that once the filter fiber is fully loaded, it will stop effectively blocking specific substances. This paper size applies the Chinese National Standard (CNS) A4 specification (210 x 297 public love) --_--- Η- --------------- Order ----- r --- · Line 1 IP. (Please read the precautions on the back before writing this page). 4 34 3 4 1 a? _B7 ______— V. Description of the invention (&gt;) Abstract of the invention—The device of the present invention is about a non-woven or mesh plane. It includes a mechanical direction axis and an axis that defines the direction of the minimum initial tensile modulus. Ω, hereafter referred to as the "minimum tensile modulus axis". The initial tensile modulus is defined by the slope of the stress-strain curve of the nonwoven over the range of the curve with the elastic properties of the nonwoven material. Known For the technology that is common in the conventional technology, when the stress increases, the slope of the stress-strain curve will eventually increase 'and pass the slope defined by the initial tensile modulus. The machine direction axis is when Kunming is manufacturing non-woven fabrics. The direction of travel of the non-woven plane is defined. The present invention further includes at least one Curved fibers from the nonwoven plane. Each curved fiber contains two base areas connected to the nonwoven plane, pillar areas connected to each base area and protruding from the nonwoven plane, and arcs connected to each pillar area. The central area of the shape. Most of the arc-shaped fibers are placed so that the base area defines an axis within 45 degrees of the axis Ω in the direction of the tensile modulus. The term "within 45 degrees" is used herein It refers to plus or minus 45 degrees. In the example printed by a consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs on a non-woven plane containing only one or two arc-shaped fibers, all the arc-shaped flaw fibers in the non-woven plane have a basic area, which defines An axis within 45 degrees of the minimum tensile modulus axis. The present invention is very suitable for the fixed use of various fabrics, including diapers, pajamas, infant clothing and surgical gowns, as well as notice boards, etc., but is not limited to these ^ The present invention also relates to the manufacture of curved fibers on non-woven fabrics method. The method of the present invention includes clamping a non-woven plane on a machine direction axis and a cross direction axis with a tensioning device, and including a variety of 4 papers, applicable to China National Standard (CNS) A4 (210 X 297) (Mm) '' 4 3434 1 A7 ________B7______ V. Description of the invention (9) A tensile force and / or a shearing force is applied to the surface of the non-woven fabric of the fiber and heat hardened. Near the edge of the fiber, a shear force is applied along the machine direction axis. The magnitude of this force will depend in part on the size and composition of the fiber. S [Explanation of formula] Fig. 1 is an isometric view of a plane of a nonwoven fabric according to the present invention. Fig. 2 is an enlarged top view of the plane of the non-woven fabric of the present invention. FIG. 3A is an enlarged top view of the plane of the nonwoven fabric of the present invention caused by a shear force. Figure 3B is a top view of a preferred embodiment of the method of the present invention. Figure 4 is a top view of a preferred embodiment of the method of the present invention. FIG. 5A is a block diagram of a preferred embodiment of the method of the present invention. FIG. 5B is a block diagram of a preferred embodiment of the method of the present invention. The preferred embodiment illustrates the printing of an employee consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. As shown in FIG. 1, the present invention relates to a device including a shaft with a mechanical direction 11, a cross direction axis 13 and a minimum tensile modulus axis Non-woven plane of 9 Non-woven plane of 10. In a preferred embodiment, the minimum tensile modulus axis is located between 10 and 80 degrees from the axis of the cross direction. The present invention further includes at least one arc-shaped fiber 12, each fiber including two base regions 14 connected to a non-woven plane, and strut regions 16 connected to each of the base regions and protruding from the fiber plane. The fiber further includes an arc-shaped central area connected to each of the pillar areas! 8 'Most of the arc-shaped fibers are placed so that the base area defines an I 5 jade paper rule i applicable to the Chinese National Standard <CNS) jV1 Specifications (X 297). I4 34 3 4 B7 V. Description of the invention (ψ) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs * '1 ^ The axis within 45 degrees of the minimum tensile modulus axis 9. A top view of the present invention is shown in FIG. 2. The angle Θ measured relative to the axis of the minimum tensile modulus illustrated in Fig. 2 is the angle within the axis defined by the base end of most of the fibers. In another preferred embodiment, at least two thirds of the arcuate fibers are placed so that the base end defines an axis within 30 degrees of the direction of the minimum tensile modulus. In a preferred embodiment, the fiber plane is formed from a thermoplastic nonwoven fabric precursor. In another preferred embodiment, the thermoplastic nonwoven fabric is pre-stretched or thermally bonded. In a preferred embodiment, the nonwoven fabric further includes a substrate I5 attached to the plane of the nonwoven fabric, which is shown in FIG. In a preferred embodiment, the substrate comprises a meltblown polymer. In a preferred embodiment, the melt-blown polymer is polypropylene, polyurethane, polyethylene, or polyester, or the above-mentioned copolymer. In a preferred embodiment, the substrate is adhesively laminated to the fiber plane. The nonwoven plane of the present invention may be made of a plurality of different fibers having different fiber diameters. The number-fiber density of the nonwoven plane is partially a function of fiber size. In a preferred embodiment of the present invention, a thermoplastic nonwoven fabric is included, the nonwoven plane comprising an average curved fiber density of at least 20 curved fibers per square centimeter. The fiber density can be achieved by performing the method of the present invention on a nonwoven fabric having a fiber density of at least 40 fibers per square centimeter. The present invention is particularly suitable for a mechanical fixture, which is used to connect objects containing a hook, which can be undone and inserted into the hair. China National Standard (CNS) A4 specification (210 X 297 mm) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 4 34 3 4] A7 B7 V. The invention description (&); The curved fibers of the present invention have a larger surface area than conventional "coil" holders, which have the same radius as the curved fibers of the present invention. This increased surface area increases the likelihood that the hooks from the wrapping tape of the fixing material will engage each of the reeds. The resulting mechanical fixture has a peel strength that is superior to previous techniques using hook and coil type configurations. In a preferred embodiment, the non-woven fabric of the present invention has a minimum peel strength of at least 23 grams per cm of wide and long strips of non-woven fabric. In a preferred embodiment, the nonwoven surface can be cut into long strips, which can be attached to the fabric by using an adhesive. The invention also relates to a method for manufacturing curved fibers in a non-woven fabric, as illustrated in Figs. 3B, 4, 5A and 5B. As shown in blocks 60 to 64 of Figs. 3B and 5A, the first method of the present invention includes sufficiently heating a non-woven fabric such that its fibers are plastically deformed in response to an applied tensile stress poem; the clamp has The non-woven plane of the mechanical direction axis and the cross direction axis; and a tensile force F is applied in the direction of the mechanical direction axis 11 or the cross direction axis 13. In a preferred embodiment, heating and application of tensile force are performed simultaneously. These steps can also be performed later. In a preferred embodiment, the force is applied by a stretching machine 22 which includes a clamping element 24 that clamps the nonwoven fabric in the direction of the cross-direction axis and stretches it. This force is quite high in block 64 of Figure 5A. In a preferred embodiment of the first method of the present invention, as shown in block 64 of FIG. 5A, the tensile force is applied in the direction of the cross, and the height is 7 (please read the precautions on the back first and then the H page). ) Language r This paper size is applicable to China National Standard (CNS) A4 (210x297 mm) 4 34 3 4 1 A7 _B7____ 5. Description of the invention (&amp;) ---------------- (Please read the precautions on the back before ls-this page) The force is extended by at least 15% in the respective cross directions, causing a considerable contraction in the mechanical direction, causing one or more arcing fibers to extend out of the nonwoven flat. In a preferred embodiment, as shown in FIG. 3B, the two mechanisms located on the opposite edges of the plane of the nonwoven fabric in the mechanical direction are connected to the nonwoven fabric by clamping elements, so these mechanisms can be in the opposite direction of the cross-direction axis A tensile force is applied. In another preferred embodiment of the first method of the present invention, as shown in block 74 of Figs. 3A and 5B, a tensile force is applied in the mechanical direction, and it is relatively large to cause elongation in the mechanical direction. At least 15 percent, with considerable shortening in the respective crossing direction, causing one or more arcuate fibers to protrude from the nonwoven plane. • Thread In the preferred embodiment, as shown in FIG. 3A, it is located at the edge of the non-woven plane in the cross direction, and the mechanism opposite to the non-woven plane roller is attached to the non-woven fabric via a mechanical direction axis. Printed by the Consumer Cooperatives of the Wisdom and Time Bureau of the Ministry of Economic Affairs The third method of the present invention is illustrated in FIG. 4. The first step of the third method is to clamp a rectangular non-woven plane, the non-woven plane contains a plurality of kinds of fibers, and at least two edges opposite to each other in the mechanical direction and two edges opposite to each other in the crossing direction. This clamping takes place in the area near the edges in the machine direction. In a preferred embodiment, the third method of the present invention further comprises extending the nonwoven fabric by at least 10 hundred square ratios in a cross direction or a mechanical direction. In another preferred embodiment, the nonwoven is initially mechanically stretched. As used herein, the term "opposite edges in the mechanical direction" refers to two edges that define the wide edge of the nonwoven plane in the crossing direction. _S ___ This paper size applies the Chinese Gardener's Standard (CNS) A4 specification (210 X 297 mm) 43434 7 A7 B7 V. Description of the invention () The third method includes directly applying 1: near each clamped edge: The amount of F is so that the non-woven plane is subjected to a considerable shear force 'to produce a shear deformation of at least 12 degrees and cause one or more arc-shaped fibers to protrude from the non-woven plane. This step is illustrated in Figure 4. This method can be used to make curved fibers in the plane of the nonwoven. The placement of most of the curved fibers in the base area defines a direction within 45 degrees of the minimum initial tensile modulus of the nonwoven product. Of axes. The foregoing disclosure and description of the present invention is for the purpose of illustration and explanation, and various changes can be made in the size, shape, and material, and the detailed structure without departing from the spirit of the present invention. ---------------------- Order .------.-- Line C, please read the notes on the back before writing this page) Appropriate printed ruler paper 9 9 X 10 2 / IV rule 4 by staff property cooperative of property bureau 4) Α 5) Ν cc

Claims (1)

A8 B8 C8 D8 4 34 3 4 六、申請寻利範圍 1. 一種不織布,其包含: a. —具有機械方向軸、交叉方向軸和最小拉伸模數軸 的不織布'平面,以及 b. 至少一成弧形纖維,該每個成弧形纖維包含二個連 接到該不織布平面的基礎區域、一連接到每個該基礎區域 並且伸出該不織布平面的支柱區域、以及一連接到每個該 支柱區域的成弧形中心區域,其中多數的該成弧形纖維的 置放使得基礎區域界定一在該最小拉伸模數軸之45度內的 軸。 2. 根據申請專利範圍第1項的不織布’其中該最小拉 伸模數軸是位於離該交叉方向軸爲10到80度間。 3. 根據申請專利範圍第1項的不織布,其中該不織布 平面是由一熱塑性的不織布先質來形成。 4. 根據申請專利範圍第3項的不織布,其中該不織布 平面在每平方公分上包括至少20個成弧形纖維的平均成^ 形纖維密度。 5. 根據申請專利範圍第3項的不織布,其中將該熱塑 性不織布先質鍵結。 6. 根據申請專利範圍第5項的不織布,其中將該熱塑 性不織布先質拉長鍵結。 7. 根據申請專利範圍第5項的不織布,其中將該熱塑 性不織布先質加熱鍵結。 S.根據申請專利範圍第1項的不織布,其中至少三分 之二的該成弧形纖維之置放使得該成弧形纖維的基礎端界 本紙張尺度適用中國國家標準(CNS)A4規格(210 x 297公釐) (請先閱讀背面之注意事項爯ί.寫本頁) 言 經濟部智慧財產局員工消費合作社印製 AS 43434 1 cs 1 D8 六、申請專利範圍 定一在該最小拉伸模數方向軸之45度內的軸。 (請先閲讀背面之注意事項再浐,Λ本頁) 9. 根據申請專利範圍第1項的不織布,其進一步包括 一連接到該不織布平面的基材。 10. 根據申請專利範圍第9項的不織布,其中該基材包 括一熔噴性(mdtblown)的聚合物。 11. 根據申請專利範圍第項的不織布,其中該聚合 物爲聚丙烯、聚氨基甲酸乙酯、聚乙烯 '聚酯類、尼龍、 或是該聚合物的共聚合物。 12. 根據申請專利範圍第9項的不織布,其中該基材係 黏著性層疊到該不織布平面上。 Π.根據申請專利範圍第1項的不織布.,其中該不織布 每公分寬度長條具有至少23公克的最小剝離強度(peel strength) 0 14 一種不織布,其包含: a. —具有機械方向軸、交叉方向軸和最小拉伸模數軸 的不織布平面;以及 經濟部智慧財產局員工消費合作杜印製 b. 至少一成弧形纖維,該每個纖維包含有二個連接到 該不織布平面的基礎區域、一連接到每個該基礎區域並且 伸出該不織布平面的支柱區域、以及連接到每個該支柱區 域的成弧形中心區域,其中多數的該成弧形纖維的置放使 得基礎區域界定一在最小拉伸模數軸之45度內的軸:以及 c. 一連接到該不織布平面的基材。 15.根據申請專利範圍第14項的不織布,其中至少三 分之二的該成弧形纖維之置放使得基礎端界定一在該最小 2 本紙張尺度適用中國國家標準(CNS)A4規格(210 χ 297公釐) 經濟部智慧財產局員工消費合作社印製 A8 4 1 六、申請專利範圍 拉伸模數軸之30度內的軸。 16.根據申請專利範圍第14項的不織布,其中該不織 布平面是由一熱塑性不織布先質來形成。 根據申請專利範圍第14項的不織布,其中將該熱 塑性的不織布先質鍵結。 18. —種在具有機械方向邊緣之不織布上製造出成弧形 纖維的方法,其包含: a.充分地加熱一不織布以使得其纖維在回應所施加的 拉伸應力時產生塑性變形; .b,夾繁一具有機械方向軸與交叉方向軸的不織布平面 :以及 c.在機械方向軸或交叉方向軸上施加一拉伸力到不織 布平面上,該力量爲相當大足以使得一或更多個成弧瑕纖 維伸出該平面。 19. 根據申請專利範圍第18項的方法,其中在交叉方 向上施加拉伸力’且其爲相當大以造成在交叉方向上延長 至少15°/。,而使得在各自機械方向上收縮’該收縮量相當 明顯以造成一或更多個成弧形纖維伸出該不織布平面。 20. 根據申請專利範圍第19項的方法’其中位於不織 布平面之相對機械方向上邊緣的二個機構藉由夾緊元件而 連接到不織布上’使得該機構可以'沿著交叉方向軸在相對 的方向上施加一拉伸力。 21. 根據申請專利範圍第19項的方法’其中該加熱和 施加拉伸力爲同時進行。 ^紙張尺度綱巾關家料(CNS)A4規格(210 X 297公浼) 1IIIIIJI1 — — — — * I I I I I I I ^ * I I---— I— 3 (請先閱讀背面之注意事項再v^,本頁) AS B8 C8 D8 1M3j4 六、申請專利範圍 22.根據申請專利範圍第18項的方法,其中在機械方 向上施加拉伸力,且其爲相當大以在機械方向上延長至少 15% ’而使得在各自交叉方向上收縮相當大,造成—個或 更多個成弧形纖維伸出該平面。 23·根據申請專利範圍第22項的方法,其中一機構經 由夾緊元件連接到不織布上,該機構是位於與不織布平面 之滾筒相對的不織布平面之交叉方向邊緣上。 24· —種在具有機械方向軸之不織布上製造成弧形纖維 的方法,其包含:' a. 夾緊一矩形不織布平面,其包含多種纖維,以及至 少二個在機械方向上相對面的邊緣和二個在交叉方向上相 對的邊緣,該夾緊發生在該機械方向邊緣附近中的區域; 以及 b. 施加足夠的力量以在相對該每個夾緊區域的方向上 沿著機械方向軸移動,使得該不織布平面受到相當明顯的 剪切力,以產生至少12度的剪切變形,並且造成一個或更 多個成弧形纖維伸出該不織布平面。 25. 根據申請專利範圍第24項的方法,其進一步包括 在交叉方向或機械方向上對於該不織布產生至少的延 長。 26. 根據申請專利範圍第24項的方法,其中該不織布 起初爲機械拉伸。 本纸張又度適用中國國家標準(CNS&gt;A4規格(210 X 297公釐) 讀· 先 閲 讀 背 意 事 項 再 本 頁 經濟部智慧財產局員工消費合作社印製A8 B8 C8 D8 4 34 3 4 VI. Application for profit-seeking scope 1. A non-woven fabric comprising: a. — A non-woven 'plane having a mechanical direction axis, a cross direction axis, and a minimum tensile modulus axis, and b. At least one Curved fibers, each of which includes two base areas connected to the non-woven plane, one pillar area connected to each of the base areas and protruding from the non-woven plane, and one connected to each of the pillars An arc-shaped central region of the region, where the majority of the arc-shaped fibers are placed such that the base region defines an axis within 45 degrees of the axis of the minimum tensile modulus. 2. The non-woven fabric according to item 1 of the scope of the patent application, wherein the axis of the minimum tensile modulus is located between 10 and 80 degrees from the axis of the cross direction. 3. The non-woven fabric according to item 1 of the patent application scope, wherein the non-woven plane is formed by a thermoplastic non-woven precursor. 4. The non-woven fabric according to item 3 of the scope of patent application, wherein the plane of the non-woven fabric includes an average fiber density of at least 20 arc-shaped fibers per square centimeter. 5. The non-woven fabric according to item 3 of the scope of patent application, wherein the thermoplastic non-woven fabric is prebonded. 6. The non-woven fabric according to item 5 of the scope of the patent application, wherein the thermoplastic non-woven fabric is preliminarily elongated and bonded. 7. The non-woven fabric according to item 5 of the scope of patent application, wherein the thermoplastic non-woven fabric is thermally bonded beforehand. S. The non-woven fabric according to item 1 of the scope of the patent application, wherein at least two-thirds of the arc-shaped fibers are placed so that the basic end of the arc-shaped fibers is based on the Chinese paper standard (CNS) A4 ( 210 x 297 mm) (Please read the note on the back first. Write this page.) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, printed by AS 43434 1 cs 1 D8. 6. The scope of patent application is set at the minimum stretch. The axis within 45 degrees of the axis in the modulus direction. (Please read the precautions on the back, 浐 this page) 9. The non-woven fabric according to item 1 of the patent application scope further includes a substrate connected to the surface of the non-woven fabric. 10. The non-woven fabric according to claim 9 of the scope of patent application, wherein the substrate comprises a polymer of meltblown (mdtblown). 11. The non-woven fabric according to the scope of the patent application, wherein the polymer is polypropylene, polyurethane, polyethylene 'polyester, nylon, or a copolymer of the polymer. 12. The non-woven fabric according to item 9 of the scope of patent application, wherein the substrate is adhesively laminated on the surface of the non-woven fabric. Π. A non-woven fabric according to item 1 of the scope of patent application, wherein the non-woven fabric has a minimum peel strength of at least 23 grams per cm of stripe. 0 14 A non-woven fabric comprising: a. — Having a mechanical direction axis, cross Non-woven planes of direction axis and minimum tensile modulus axis; and printed by the consumer cooperation of the Intellectual Property Bureau of the Ministry of Economic Affairs b. At least one curved fiber, each fiber containing two base areas connected to the non-woven plane A pillar area connected to each of the base areas and protruding from the non-woven plane, and an arc-shaped central area connected to each of the pillar areas, wherein the placement of the majority of the arc-shaped fibers defines a base area defining a Axis within 45 degrees of the minimum tensile modulus axis: and c. A substrate connected to the nonwoven plane. 15. The non-woven fabric according to item 14 of the scope of patent application, where at least two-thirds of the arc-shaped fibers are placed so that the base end defines a minimum of 2 paper standards that apply Chinese National Standard (CNS) A4 specifications (210 χ 297 mm) Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A8 4 1 6. The axis of the patent application stretched within 30 degrees of the modulus axis. 16. The non-woven fabric according to item 14 of the application, wherein the non-woven plane is formed of a thermoplastic non-woven precursor. The non-woven fabric according to item 14 of the patent application, wherein the thermoplastic non-woven fabric is bonded in advance. 18.-A method of making curved fibers on a non-woven fabric having a mechanically oriented edge, comprising: a. Heating a non-woven fabric sufficiently so that its fibers undergo plastic deformation in response to an applied tensile stress; .b , Clip a non-woven plane with a mechanical direction axis and a cross direction axis: and c. Apply a tensile force to the non-woven plane on the mechanical direction axis or the cross direction axis, the force is sufficiently large to make one or more Arc-shaped flaw fibers protrude from this plane. 19. A method according to item 18 of the scope of patent application, wherein a tensile force is applied in the cross direction and it is relatively large to cause an extension of at least 15 ° / in the cross direction. However, the shrinkage in the respective mechanical directions is made quite apparent so that one or more arcuate fibers protrude from the plane of the nonwoven fabric. 20. The method according to item 19 of the scope of patent application 'where two mechanisms located on the edge of the non-woven plane in the opposite mechanical direction are connected to the non-woven fabric by clamping elements' so that the mechanism can A tensile force is applied in the direction. 21. The method according to item 19 of the scope of patent application, wherein the heating and the application of tensile force are performed simultaneously. ^ Paper size outline towels (CNS) A4 specification (210 X 297 male) 1IIIIIJI1 — — — — * IIIIIII ^ * I I --- — I — 3 (Please read the precautions on the back before v ^, (This page) AS B8 C8 D8 1M3j4 VI. Application for patent scope 22. The method according to item 18 of the patent application scope, wherein a tensile force is applied in the mechanical direction and it is relatively large to extend at least 15% in the mechanical direction '' The shrinkage in the respective crossing directions is rather large, causing one or more arcuate fibers to protrude from the plane. 23. The method according to item 22 of the scope of patent application, wherein a mechanism is connected to the non-woven fabric via a clamping element, and the mechanism is located on an edge in the direction of intersection of the non-woven fabric surface opposite to the non-woven fabric roller. 24 · —A method for manufacturing an arc-shaped fiber on a non-woven fabric having a mechanical direction axis, comprising: a. Clamping a rectangular non-woven plane containing a plurality of fibers, and at least two edges facing each other in the mechanical direction And two edges opposite in the cross direction, the clamping occurs in a region near the edge of the mechanical direction; and b. Applying sufficient force to move along the mechanical direction axis in a direction relative to each of the clamping areas So that the non-woven plane is subjected to a fairly significant shear force to generate a shear deformation of at least 12 degrees and cause one or more arc-shaped fibers to protrude from the non-woven plane. 25. The method according to item 24 of the scope of patent application, further comprising causing at least elongation to the nonwoven in a cross direction or a mechanical direction. 26. The method according to item 24 of the application, wherein the nonwoven is initially mechanically stretched. This paper is again applicable to the Chinese National Standard (CNS &gt; A4 size (210 X 297 mm). Read · Read memorize the items again. This page is printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs.
TW088111750A 1998-07-30 1999-07-12 Nonwoven web comprising arched fibers TW434341B (en)

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US5053066A (en) * 1990-05-04 1991-10-01 Hassenboehler Charles B Nonwoven filter and method of manufacture
US5326612A (en) * 1991-05-20 1994-07-05 The Procter & Gamble Company Nonwoven female component for refastenable fastening device and method of making the same

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