200938666 六、發明說明： 【發明所屬之技術領域】 本發明係關於在藉由紡紗電極與收集電極之間的電位 差所誘發之高強度靜電場下，用於透過聚合物基質靜電紡 紗而產生奈米纖維層的裝置，其包括設置於至少兩個拉緊 • 軸上的環狀帶，其中拉緊軸中至少一者係與傳動裝置耦 • 接’同時在介於紡紗電極與收集電極之間、鄰近收集電極 的區域進行基板材料的引導。 〇 【先前技術】 用於透過聚合物基質靜電紡紗而產生奈米纖維層的裝 置包括紡紗電極（spinning electrode)與收集電極 (collecting electrode)，收集電極通常係由連接至與紡 紗電極相反極性的高電壓源之桿或金屬板所形成或接地。 .歐洲專利公開號1059106與美國專利案第4,143,196 號所揭露的裝置’其中收集電極包括導電的平滑帶 ❹（electrically conductive smooth belt)，其上沈積所產 生的奈米纖維層，奈米纖維層接著自收集電極的帶上移除 並且輸送至裝置的外部。在歐洲專利公開號1〇591〇6中， 其上沉積奈米纖維層之帶的一部分為水平的，而在美國專 =案第4, 143, 196號中，其上沈積奈米纖維層之帶的一部 分為垂直的。此裝置既未解決奈米纖維層沉積於基板材料 j的問題，也未解決基板材料於紡紗電極與收集電極間的 空間中之輸送問題。根據先前技術’帶收集電極係用以將 奈米纖維直接沉積進入奈米纖維層以及用以在纺紗電極與 94496 4 200938666 收集電極間的空間之外部輸送此奈米纖維層。 • 根據捷克共和國PUV2007-18612，由圓柱狀體所形成 . 的收集電極係與基板材料接觸，係透過紡紗裝置而基本上 水平地引導（guide)基板材料。不過此解決方案之缺點係 增加基板材料與收集電極表面的摩擦（friction)，特別是 在由彼此固定之小纖維所構成之細緻基板材料（例如：細緻 的織物）’特別是當裝置包括更多纺紗單元的情況下，基板 材料將發生損害或可能發生損害，也因此更多的收集電拖 © 與基板材料必須牢牢地拉緊以防止鬆弛（slacking)。 本發明之目的係降低咸消除先前技術之缺點。 【發明内容】 本發明之目的已根據本發明之藉由用於透過聚合物基 質靜電纺紗而產生奈米纖維層的裝置而達成，其原則在於 基板材料的引導（guidance)係由基板材料之壓制工具 (hold-down means)所形成，基板材料壓制工具係在收集電 0 極的環狀帶上進行。 在環狀帶上進行的基板材料之壓制工具係供以確保基 板材料與收集電極表面間的良好接觸以及基板材料穿過訪 紗空間的穩定移動速度。基板材料與收集電極表面間的良 好接觸係在基板材料上均勻沉積奈米纖維進入奈米纖維層 之基本前提。 如果壓制工具係由收集電極的帶中的開口（opening) 所形成’則改善收集電極的圓柱狀體表面上之基板材料的 壓制係有利的’而沿著紡紗電極至收集電極方向之帶後面 94496 200938666 的空間係與負壓源（SC)urce M _erpressure)耗接。 • I收集電極的環狀帶係由在其外側之尖端(t ips) •(此夠延伸進人基板材料並且再次從基板材料離開）所提 供則改善基板材料（特別係由相當厚的厚度之細緻織物所 形成）的輸送係有利的，因此確切地決定基板材料的移動速 度位置以及個別一個接一個排列的纺紗單元之收集電極 •間的基板材料之拉緊（stretching)。形成壓制工具並且在 V上之尖端侧立使用或者結合開口使用，以及在低於收 © 集電極的帶之壓力下使用。 >果魏係㈣電材料所製成且其長度係相當於基板 材料的厚度’改變紡紗效果係有利的。在收集電極的帶上 的傳導尖端產生紡紗電極與㈣電㈣的靜電場的不規 貝J而對由紡办電極上的聚合物溶液形成之泰勒圓錐形 (Taylor cone)作出貢獻，也因此形成奈米纖維。 如果尖端係設置於由非導電材料所製成之本體並且至 ❹少位於與紡紗電極相對之位置，尖端係連接至與紡紗電極 相反極性的高電壓源或接地，則足夠密度的由導電材料所 製成的尖端係有利的。在此情況下，於尖端與紡紗電極間 誘發靜電場。所產生之奈米纖維係自紡紗電極朝向收集電 極的尖端運載，並且沉積於基板材料上。 於根據申清專利範圍第6項之具體實施例中，尖端係 由非導電材料所製成且設置於由導電材料所製成的帶上， 帶係連接至與紡紗電極相反極性的高電壓源或接地。此具 體實施例適合由導電材料之薄織物（thin web)所形成的基 94496 6 200938666 板材料或者I電性藉 所形成的基板材料。當於;紗=曾:的材料之薄織物 極的帶表面之間誘發靜物接觸之收集電 【實施方式】 嘮則此等薄織物係足夠的。 根據本發明在高強度靜電π 靜電紡紗而產生夺米纖唯下，用於透過聚合物基質 示於…t 的*置之例示具體實施例係表 .^ 聚合物基質係由任何可能具有多種添加物 ❹ =1物之混合物的靜電可紡紗型態的聚合物所形成，聚 三物之犯合物也可添加多種添加物而靜電可纺紗型態通 吊係洛液或熔化物（me 11)。於紡紗室（sp i nn i ng chamber) i 内配置紡紗單元，紡紗單元包括紡紗電極2與相對配置之 收集電極3。高強度靜電場係於紡紗電極2與收集電極3 間以已知之方法誘發。於纺紗室1中，以已知方法（未詳細 解釋）產生用於基板材料4之通道，通道於已知的未表示之 展開裝置（unwinding device)中展開，並藉由镇入滾筒 ^ (feeding roller)51、52之帶領進入紡紗室1。基板材料 4係藉由排放滾筒（draw-off roller)61、62帶離紡紗室1， 在排放滚筒6卜62後面係以已知（未表示）之方法纏繞基板 材料4於未表示的纏繞裝置中。紡紗電極2可以任何已知 的方法產生’而於具體實施例所表示的實施例中’由轉動 的圓柱狀體所形成之轉動的紡紗電極表示’其表面部分 (surf ace sect ion)延.伸進入欲經纺紗之聚合物基質的貝了 存器（reservoir)。 收集電極3包含由導電材料所製成的環狀帶31，環狀 7 94496 200938666 帶31在紡紗室1中係設置於一對拉緊軸32、33上。開口 311係形成於帶31上。環狀帶31在等拉緊軸32、33之間 形成兩個部分：與基板材料接觸之引導部分 section)，以及可反轉部分（reversible section)。負壓 ❹ ❹ 室34係配置於環狀帶31的引導部分與可反轉部分與拉緊 軸32、33之間，其内部空間係與已知（未表示）的負壓源耦 接，而負壓室34係位於帶31的引導部分的後面、沿箸紡 紗電極2往收集電極3的方向。收集電極3的帶31以已知 (未表示）的方法連接至與紡紗電極2相對極性的高電墨源 或接地。收集電極之拉緊軸32、33中至少其中一者係與= 表示之傳動裝—接，傳動裝置確保其強迫轉動方向與武 板材料4的移動方向一致’而轉速係藉由某些已知的方^ 根據基板材料4的移動速度來調整。基板材料4係於 帶31的引導部分上引導。 於紡紗過程中，基板材料4移動穿過介於纺紗電 與收集電極3間的紡紗Μ，而與收集電極3的環 的1丨導部分之表面相接觸。來自紡紗室！空間的空氣或1 他乳體係藉由負壓室34’透過環狀帶31的開口 311而唆 二因：基板材料4係與環狀帶31的料部分之表 =觸央^於⑽過財’奈米纖維係沉積於基板材料4 讲“㈣至1之空間的空氣或其他氣體之抽吸也對將 的奈㈣維沉縣基板材料4有所貢獻。所形成之 =纖維層41係用-對排放滚筒61、62與基板材料一塊 94496 8 200938666 根據第2圖之具體實施例，以在外侧之尖端m2提供 收集電極3的環狀帶31。收集電極3的尖端312與帶31 . 之具體實施例可根據紡紗技術狀況、用以紡紗之聚合物基 質的種類以及所產生之奈米纖維層的應用等而變化。特別 選定尖端312用於改善特別由具相當厚之厚度的低線性内 聚力（low linear cohesion)之細緻織物所形成之基板材料 4的輸送。當基板材料4通過收集電極3附近，尖端312 延伸進入基板材料4且至少部分刺入，並且接著再次離開 © 基底材料4。藉此，尖端312確切地決定基板材料4的移 動速度、位置以及個別一個接一個排列的紡紗單元之收集 電極3之間的基板材料4之拉緊。 根據第2圖之具體實施例，收集電極3的環狀帶31與 尖端312 —樣係由導電材料所製成。尖端312之長度相當 於或較小於基板材料4之厚度。尖端312之頂端（pead 通過紡紗空間的過程中維持在基板材料4的内部或者在沉 ❿積奈米纖維的基板材料4的表面區域。當尖端312以低密 度配置於帶31上m紗電極2與收集雜3間的靜電 場係在紡紗電極2的主動部分與收集電極3之帶31的相對 位置部分之間誘發’而在尖端312的所在位置，靜電場係 在尖端312的頂端與紡紗電極2的主動部分之間誘發。在 導電尖端312的頂端上’攜帶之電荷係集中於單點電荷， 對於在紡紗製程歧始階段中產生奈米纖維係有相當貢 獻。所產生之奈米纖維係沉積於基板材料4的表面。在高 密度的尖端312，靜電場係在紡紗電極2的主動部分與尖 94496 9 200938666 峰312的頂端之間誘發，該尖峰312的頂端欲於在給定時 ^ 刻（given moment)，相對於紡紗電極2的此主動部分被發 . 現。於此具體實施例中，尖端312的頂端形成單電荷柵 (grid of singular charges)。所產生之奈米纖維係沉積 於基板材料4的表面。 在未表示之具體實施例中，收集電極3的帶31係由非 導電材料所製成並且在其中設置由導電材料所製成的尖端 312，而尖端312之尺寸與先前具體實施例中者相同。尖端 〇 312係連接至與紡紗電極2相對極性的高電壓源或者接 地。靜電場係在尖端312的頂端與纺紗電極2的主動部分 之間誘發，並且所產生之奈求纖維係沉積於基板材料4的 表面。 在由環狀帶31(以非導電材料所製成）與尖端312(以 導電材料所製成）所形成之收集電極3的較佳具體實施例 中，高電壓源僅連接至欲於紡紗電極2相對之位置發現頂 〇 端的尖端。在此具體實施例中’環狀帶31的拉緊軸33、 32可没置於纺紗室1之外。再者，環狀帶31的可反轉部 分可能通過紡紗室1之外。 在未表示的具體實施例中，收集電極3的帶31係由導 電材料所製成，並且於其中設置非導電材料所製成的尖端 312。根據本發明，於安裝此收集電極3於裝置之紡紗單元 的情況下，靜電場係在紡紗電極2的主動部分與收集電極 的帶31和紡紗電極2主動部份相對之位置部分之間誘發， 而尖端312發揮唯一的輸送功能並維持基板材料4的位 94496 10 200938666 置，並且尖端312可長於基板材料4之厚度。 裝設有尖端312之收集電極3的環狀帶31的全部具體 實施例均可提供開口 311於環狀帶31中，而在環狀帶31 的後側分配有負壓室34。開口 311係形成於尖端312之間， 並且用以將基板材料4釘於收集電極3的環狀帶31。 ' 【圖式簡單說明】 - 根據本發明的裝置與根據本發明的收集電極之例示具 體實施例係概要性地表示於所揭露之圖式，其中 ❿ 第1圖顯示分配具有含有設置成可轉動之平滑帶的收 集電極之紡紗裝置，其中平滑帶具有所分配之負壓源的開 口。 第2圖係裝置的另一種變化，其中係以尖端提供收集 電極之環狀帶。 【主要元件符號說明】 1 紡紗室 2 纺紗電極 3 收集電極 31 環狀帶 311 帶中的開口 312 尖端 32 拉緊軸 33 拉緊軸 34 負壓室 4 基板材料 41 奈米纖維層 51、52 饋入滾筒 61 ' 62 排放滾筒 11 94496200938666 VI. Description of the Invention: [Technical Field] The present invention relates to electrospinning through a polymer matrix under a high-intensity electrostatic field induced by a potential difference between a spinning electrode and a collecting electrode. a device for a nanofiber layer comprising an endless belt disposed on at least two tensioning shafts, wherein at least one of the tensioning shafts is coupled to the transmission device while being interposed between the spinning electrode and the collecting electrode The guiding of the substrate material is performed between the regions adjacent to the collecting electrodes.先前 [Prior Art] A device for producing a nanofiber layer by electrospinning through a polymer matrix includes a spinning electrode and a collecting electrode, and the collecting electrode is usually connected to the opposite of the spinning electrode. A pole or metal plate of a polar high voltage source is formed or grounded. The apparatus disclosed in the European Patent Publication No. 1,059,106 and the U.S. Patent No. 4,143,196, wherein the collecting electrode comprises an electrically conductive conductive belt on which the resulting nanofiber layer is deposited, and the nanofiber layer is followed by The strip from the collecting electrode is removed and delivered to the outside of the device. In European Patent Publication No. 1 591 591, a portion of the belt on which the nanofiber layer is deposited is horizontal, and in U.S. Patent No. 4,143,196, a nanofiber layer is deposited thereon. A part of the belt is vertical. This device does not solve the problem of deposition of the nanofiber layer on the substrate material j, nor does it solve the problem of transport of the substrate material in the space between the spinning electrode and the collecting electrode. According to the prior art, a collecting electrode system is used to deposit nanofibers directly into the nanofiber layer and to transport the nanofiber layer outside the space between the spinning electrode and the collecting electrode of 94496 4 200938666. • According to the Czech Republic PUV 2007-18612, the collecting electrode formed by the cylindrical body is in contact with the substrate material, and the substrate material is guided substantially horizontally by the spinning device. However, the disadvantage of this solution is to increase the friction of the substrate material with the surface of the collecting electrode, in particular the fine substrate material (for example: fine fabric) composed of small fibers fixed to each other', especially when the device includes more In the case of a spinning unit, the substrate material will be damaged or may be damaged, and therefore more collection of electrical drag © and substrate material must be tightly tightened to prevent slacking. The object of the present invention is to reduce the disadvantages of the prior art. SUMMARY OF THE INVENTION The object of the present invention has been achieved in accordance with the present invention by a device for producing a nanofiber layer by electrospinning through a polymer matrix, the principle of which is that the substrate material is made of a substrate material. Formed by a hold-down means, the substrate material pressing tool is carried out on an endless belt collecting the electric poles. The pressing tool of the substrate material on the endless belt is provided to ensure good contact between the substrate material and the surface of the collecting electrode and a stable moving speed of the substrate material through the access space. Good contact between the substrate material and the surface of the collecting electrode is a basic premise for uniformly depositing nanofibers into the nanofiber layer on the substrate material. If the pressing tool is formed by an opening in the belt of the collecting electrode, the pressing of the substrate material on the surface of the cylindrical body of the collecting electrode is improved, and the belt is along the direction from the spinning electrode to the collecting electrode. 94496 200938666 The space system is connected to the negative pressure source (SC) urce M _erpressure). • The endless belt of the I collecting electrode is provided by the tip (t ips) on the outside (which extends into the substrate material and exits again from the substrate material) to improve the substrate material (especially from a relatively thick thickness) The transport of the fine fabric is advantageous, so that the position of the moving speed of the substrate material and the stretching of the substrate material between the collecting electrodes of the individual spinning units are arranged. A pressing tool is formed and used at the tip of the V on the side or in combination with the opening, and at a pressure below the belt of the collector. > The effect of changing the spinning effect is made by the fact that the thickness of the material is equivalent to the thickness of the substrate material. The conductive tip on the strip of the collecting electrode contributes to the irregularity of the electrostatic field of the spinning electrode and (iv) electricity (4) and contributes to the Taylor cone formed by the polymer solution on the spinning electrode, and thus Forming nanofibers. If the tip is placed on a body made of a non-conductive material and is at a position opposite to the spinning electrode, the tip is connected to a high voltage source or ground of opposite polarity to the spinning electrode, then a sufficient density is conductive The tip made of the material is advantageous. In this case, an electrostatic field is induced between the tip and the spinning electrode. The resulting nanofibers are carried from the spinning electrode toward the tip end of the collecting electrode and deposited on the substrate material. In a specific embodiment according to claim 6 of the scope of the patent application, the tip is made of a non-conductive material and is disposed on a belt made of a conductive material, and the belt is connected to a high voltage having a polarity opposite to that of the spinning electrode. Source or ground. This specific embodiment is suitable for a substrate material formed of a thin material formed of a thin web of conductive material, 94496 6 200938666 or I. When the yarn of the yarn of the material of the yarn is used, the collection of electricity is induced between the surface of the strip of the pole. [Embodiment] The thin fabric is sufficient. According to the present invention, a high-strength electrostatic π-electrospinning is used to produce a rice-removing fiber, and the specific embodiment is used to illuminate the polymer matrix as shown in Fig. 1. The polymer matrix is composed of any of a variety of possibilities. An electrostatically spinnable polymer of a mixture of substances =1 is added, and a compound of a polytrim can also be added with a plurality of additives, and the electrospinning type can be used to suspend the liquid or melt ( Me 11). A spinning unit is arranged in the spinning chamber, and the spinning unit comprises a spinning electrode 2 and a collecting electrode 3 arranged opposite thereto. The high-intensity electrostatic field is induced between the spinning electrode 2 and the collecting electrode 3 by a known method. In the spinning chamber 1, a passage for the substrate material 4 is produced by a known method (not explained in detail), the passage is unfolded in a known unwinding device, and by the town roller ^ ( The feeding rollers 51, 52 lead into the spinning chamber 1. The substrate material 4 is taken away from the spinning chamber 1 by a draw-off roller 61, 62, and the substrate material 4 is wound around the discharge drum 6 after being unillustrated (not shown). In the device. The spinning electrode 2 can be produced by any known method. In the embodiment represented by the specific embodiment, the rotating spinning electrode formed by the rotating cylindrical body represents 'the surface portion (surf ace sect ion). Extending into the polymer matrix of the polymer matrix to be spun. The collecting electrode 3 comprises an endless belt 31 made of a conductive material, and the ring 7 94496 200938666 is provided in the spinning chamber 1 on a pair of tensioning shafts 32, 33. The opening 311 is formed on the belt 31. The endless belt 31 forms two portions between the equal tensioning shafts 32, 33: a guiding portion section in contact with the substrate material, and a reversible section. The negative pressure chamber 34 is disposed between the guiding portion of the endless belt 31 and the reversible portion and the tensioning shafts 32, 33, and the internal space thereof is coupled to a known (not shown) negative pressure source, and The negative pressure chamber 34 is located behind the leading portion of the belt 31 in the direction of the squeezing electrode 2 toward the collecting electrode 3. The belt 31 of the collecting electrode 3 is connected to a high electric ink source or ground which is opposite in polarity to the spinning electrode 2 in a known (not shown) manner. At least one of the tensioning shafts 32, 33 of the collecting electrode is connected to the transmission indicated by =, and the transmission ensures that the direction of its forced rotation coincides with the moving direction of the slab material 4, and the rotational speed is known by some The square ^ is adjusted according to the moving speed of the substrate material 4. The substrate material 4 is guided on the guiding portion of the belt 31. During the spinning process, the substrate material 4 is moved through the spinning entanglement between the spinning power and the collecting electrode 3, and is in contact with the surface of the 1-lead portion of the ring of the collecting electrode 3. From the spinning room! The space air or the 1 other milk system passes through the opening 311 of the endless belt 31 through the negative pressure chamber 34'. The surface of the substrate material 4 and the material portion of the endless belt 31 = touch (^) 'Nano fiber is deposited on the substrate material 4. The suction of air or other gas in the space of (4) to 1 also contributes to the substrate material 4 of the Nai (4) Weishen County. The formed = fiber layer 41 is used. - a pair of discharge drums 61, 62 and substrate material 94496 8 200938666 According to a specific embodiment of Fig. 2, the endless belt 31 of the collecting electrode 3 is provided at the outer tip m2. The tip end 312 of the collecting electrode 3 and the belt 31 are Particular embodiments may vary depending on the state of the spinning technique, the type of polymer matrix used for spinning, and the application of the resulting nanofiber layer, etc. The tip 312 is specifically selected for improvement in particular by a relatively thick thickness. The transport of the substrate material 4 formed by the fine fabric of the low linear cohesion. As the substrate material 4 passes near the collecting electrode 3, the tip 312 extends into the substrate material 4 and at least partially penetrates, and then leaves the substrate material 4 again. . Thus, the tip 312 determines exactly the speed of movement of the substrate material 4, the position, and the tension of the substrate material 4 between the collection electrodes 3 of the individual spinning units arranged one after another. According to the embodiment of Fig. 2, the collecting electrode The endless belt 31 of 3 is made of a conductive material as the tip end 312. The length of the tip 312 is equivalent to or smaller than the thickness of the substrate material 4. The tip end of the tip 312 (the pead is maintained during the spinning space) The inside of the substrate material 4 or the surface area of the substrate material 4 in which the nanofibers are deposited. When the tip 312 is disposed at a low density on the belt 31, the electrostatic field between the yarn electrode 2 and the collection impurity 3 is at the spinning electrode 2 The active portion is induced between the relative position portion of the strip 31 of the collecting electrode 3 and at the position of the tip 312, an electrostatic field is induced between the tip end of the tip 312 and the active portion of the spinning electrode 2. At the conductive tip 312 The charge carried on the top is concentrated in a single point charge, which contributes considerably to the production of nanofibers in the spinning process. The resulting nanofibers are deposited on the surface of the substrate material 4. At the high density tip 312, the electrostatic field is induced between the active portion of the spinning electrode 2 and the tip of the peak 94146 9 200938666 peak 312, the tip of which is intended to be at a given moment, relative to This active portion of the spinning electrode 2 is produced. In this embodiment, the tip end of the tip 312 forms a grid of singular charges. The resulting nanofibers are deposited on the surface of the substrate material 4. In a specific embodiment not shown, the strip 31 of the collecting electrode 3 is made of a non-conductive material and has a tip 312 made of a conductive material disposed therein, and the tip 312 is the same size as in the previous embodiment. . The tip 〇 312 is connected to a high voltage source or ground that is relatively polar to the spinning electrode 2. The electrostatic field is induced between the tip end of the tip 312 and the active portion of the spinning electrode 2, and the resulting fiber is deposited on the surface of the substrate material 4. In a preferred embodiment of the collecting electrode 3 formed by the endless belt 31 (made of a non-conductive material) and the tip end 312 (made of a conductive material), the high voltage source is only connected to the spinning machine. The tip of the top end is found at the opposite position of the electrode 2. In this embodiment, the tensioning shafts 33, 32 of the endless belt 31 may not be placed outside the spinning chamber 1. Further, the reversible portion of the endless belt 31 may pass outside the spinning chamber 1. In a specific embodiment not shown, the belt 31 of the collecting electrode 3 is made of a conductive material, and a tip 312 made of a non-conductive material is provided therein. According to the present invention, in the case where the collecting electrode 3 is mounted on the spinning unit of the apparatus, the electrostatic field is in a position portion where the active portion of the spinning electrode 2 is opposed to the belt 31 of the collecting electrode and the active portion of the spinning electrode 2. Inferred, while the tip 312 exerts a unique delivery function and maintains the position of the substrate material 4 at 94496 10 200938666, and the tip 312 can be longer than the thickness of the substrate material 4. All of the specific embodiments of the endless belt 31 provided with the collecting electrode 3 of the tip end 312 can provide the opening 311 in the endless belt 31, and the negative pressure chamber 34 is disposed on the rear side of the endless belt 31. Openings 311 are formed between the tips 312 and are used to staple the substrate material 4 to the endless belt 31 of the collecting electrode 3. BRIEF DESCRIPTION OF THE DRAWINGS - Exemplary embodiments of a device according to the present invention and a collecting electrode according to the present invention are schematically shown in the disclosed drawings, wherein FIG. 1 shows that the dispensing has a setting to be set to be rotatable A spinning device for a collecting electrode of a smoothing belt, wherein the smoothing belt has an opening for the assigned source of negative pressure. Figure 2 is another variation of the device in which an endless belt of collecting electrodes is provided with a tip. [Main component symbol description] 1 Spinning chamber 2 Spinning electrode 3 Collecting electrode 31 Endless belt 311 Opening in the belt 312 Tip 32 Tensioning shaft 33 Tensioning shaft 34 Negative pressure chamber 4 Substrate material 41 Nanofiber layer 51, 52 feed roller 61 ' 62 discharge roller 11 94496