546166 A7 __ —__B7 五、發明說明（1 ) 【發明領域】 ， 本發明係提供一種高透氣性濾材之製法，特別是指一 種分別在用以間隔及黏著之中間層之上下兩表面貼合一濾 材（filtration media)以達降低壓差並具有高過濾效率 5 之高透氣性濾材之製法。 【發明背景】 習知的高過濾性之濾材如第一圖，係利用於不織布i i 之一表面上以黏著劑貼合一高效率濾材來形成。一般而言 ’對兩過濾性濾材之要求條件包含高過濾效率及低壓差， 10其過濾效率係指經過濾材後，除去的微粒數相對於過濾前 之微粒數之比率，而壓差是指氣流通過濾材前之壓力值減 去通過濾材後之壓力值。習知的高過濾性濾材的過濾效率 雖可達到實用需求，然而其壓差亦偏高。壓差較高之高過 濾性濾材可能會造成氣體流量減少的問題。舉例來說，習 15知的高過濾性濾材應用於過濾空氣時，可能會發生過濾雜 質後之空氣流量減少的問題。然而，隨著濾材之過遽性提 高，.則壓差亦隨之大幅提高，因此若能利用較低過濾效率 之濾材，則壓差則可大幅下降’舉例來說，過濾效率高達 9 9 · 9 9 %之（一般定義南過濾、效率為9 9 · 9 7 %以上）P T F E薄膜貼 20 合濾材的壓差為151.4毫米水柱。本發明之ptfe薄模，其過 濾效率為99.895%，其壓差為18·5毫米水柱，因而若能利用 堆疊多層低過濾效率之濾、材即可解決習知的問題，而形成 低壓差與高過濾效率之濾材。 【發明概要】 本紙張尺度適用中國國家標準（CNS) A4規格（210χ 297公爱） 546166 A7 Γ________Β7 五、發明說明（2 ) 本發明之一目的係提供一種高透氣性濾材之製法，係 分別在具間隔與黏著功效的中間層之兩表面上貼合一濾材 ’使達咼過濾、效率及低壓差的效果。 本發明之另一目的係提供一種高透氣性濾材，係由一 5具間隔與黏著功效的中間層及兩分別設置於中間層之兩表 面的濾材，使達高過濾效率及低壓差之功效。 為達到上述之目的，本發明之一種高透氣性濾材之製 法，係包含以下之步驟： A) 提供一用以間隔及黏著的中間層，而該中間層具有 10相對之一第一與一第二表面，該中間層係由兩種不同熔點 之纖維所構成的複合纖維；及 B) 分別於該中間層之第一與第二表面上貼合一濾材， 忒濾材係由聚四氟乙烯薄膜、玻璃纖維紙及熔噴不織布所 構成群組中擇一構成，其貼合係藉加熱與加壓時，使該複 15合纖維中熔點較低的纖維會融熔以黏合該等濾材，各該濾 材係採用較低之過濾效率，其過濾效率為低於99 97%與其 壓差為低於18.5毫米水柱。 再者，本發明之一種高透氣性濾材，係包括至少一具 有相對的一第一表面與一第二表面並具有間隔與黏著之效 20的中間層及複數個分別貼合於該等中間層之對應表面上濾 材’藉以達到高過濾效率及低壓差之功效。 【囷式之簡單說明】 本發明之其他特徵及優點，在以下配合參考圖式之較 佳實施例的詳細說明中，將可清楚的明白，在圖式中： 546166 A7 B7 、發明說明 第圖係習知之高過濾性濾材之結構示意圖。 第二圖係本發明較佳實施例之結構示意圖。 楚一 一圖係第二圖之較佳實施例與習知的高過濾性濾材 於相同條件下測言式的結果之總覽。 第四圖係本發明之第二較佳實施例之結構示意圖。 第五圖係本發明之第三較佳實施例之結構示意圖。 第六圖係第五圖之第三較佳實施例與習知的高過濾性 濾材於相同條件下測試的結果之總覽。 【發明之詳細說明】 第一圖係顯示本發明之第一較佳實施例，其包括一中 間層2及兩濾材3。 中間層2具有相對的第一表面21與第二表面22。本實施 例之中間層2係用以保持兩濾材3之間的間隔空間，此外本 實施例之中間層2係由兩種為不同熔點的纖維所構成的複 15合纖維，而此複合纖維2可為由此兩種不同熔點的纖維所製 成的織布或不織布，例如該中間層2可由聚對苯二曱酸乙二 醋纖維（PET)與改質聚對苯二甲酸乙二酯纖維（c〇pET)來製 成’或者由心鞘型（sheath core type)複合纖維與各半型 (side by side type)複合纖維製成。 20 兩濾材3係分別覆蓋貼合於中間層2之第一表面21與第 一表面2 2。在本實施例中，兩濾、材3是較低過滤效率（即低 於99.97%之過濾效率）並分別放置於中間層2之第一表面a 與第二表面2 2上後，利用加熱及加壓之方式，來達到貼人 中間層2之效果。而當加熱壓合兩濾材3時，會使中間芦2的 本紙張尺度適用中國國家標準（CNS) A4規格（210x 297公釐） 546166 A7 B7 五、發明說明（4 其中較低溶點的-種纖，維到達溶點而為融炫狀態，以作為 黏著劑來黏合兩壚材3。所以t間層2具有保持兩濾材3之間 的間隔的功能’及黏合兩遽材3之功能。此外，在本實施例 中，濾材3之材料係可為聚四氟乙烯（pTFE)、玻璃纖維紙 (glass fiber paper)或熔噴不織布等等之類。 依上所述之構造，本實施例之製造方法，大體上包含 兩步驟··步驟A-提供中間層2 ,以及步驟β —分別於中間層2之 兩表面2卜22上利用力口熱及加壓來使中間層2中溶點較低的 纖維融熔以貼合濾材3。藉此設置，可達到過濾效 10 99.995%及壓差為36」毫米水柱（甚小於習知的壓。， 為了證明本發明確實能解決習知高壓差之缺點，請一 併參照第三圖，係在空氣流速為32公升/分鐘下針對〇.26微 米之NaCl微粒分別對習知高過濾性濾材與本發明之高透氣 性濾材作測試，在此測試中本實施例之高透氣性濾材之複 15合纖維體2係應用由聚對苯二曱酸乙二酯纖維（pET)與改質 &對苯二甲酸乙二酯纖維（coPET)所製成的不織布，而濾材 3之材料為過濾效率為99. 895%之PTFE薄膜： 1.壓差： 習知的高過濾性濾材，其壓差高達1 5 1 · 4亳米水柱，而 20本實施例中的單一PTFE薄膜貼合濾材的壓差為ι8· 5毫米水 柱，因而本實施例中雙層PTFE薄膜貼合的高透氣性濾材之 壓差理論值為兩層濾材之壓差累加，即為3 7毫来水柱 (18.5 + 18.5 = 37毫米水柱），而經實際驗證的結果為361毫 米水柱’甚小於習知的壓差，因此本發明相對於習知漁材 本紙張尺度適用中國國家標準（CNS) A4規格（210x 297公釐） 第7百 546166 A7 B7 五、發明說明C 5 ) 確實可達到低壓差之優點。 2.過濾、效率： 習知之PTFE薄膜貼合不織布，其使用之ptfe薄膜之過 濾效率為99· 99%，本實施例所採用之PTFE薄膜之過濾效率 5 為99.895%，所以當經過位於中間層2之上方的第一層ptfe 濾材3時，其過濾效率可達到9 9 · 8 9 5 %，亦即通過濾材3之後 僅剩餘0 · 1 0 5 %的微粒，而再經過位於中間層2之下方的第二 層P T F E遽材3後’此遽材3的過慮效率亦為9 9 · 8 9 5 %，所以僅 剩下 0.0001 1025%微粒（〇.〇〇15*(卜0. 99895) = 0. 0000011025 10 )，所以過濾效率的理論值可達到99· 999% ( 1-〇.〇〇〇〇〇 1 1 025 = 0· 99999 )，而實際驗證的數據為 99. 995%( 高於商業化要求之99 · 97%)亦接近此理論數據，所以本發明 不僅可解決習知的高壓差之問題，相對於習知更可提高過 濾效率之優點。 15 綜上所述，在本發明中，利用於中間層2之兩表面21、 2 2分別貼合一濾材3，確實可達到低壓差與高過濾效率之優 點。 再者，請參照第四圖，係本發明之第二實施例，此實 施例三層濾材3與兩間隔設置於其中的中間層2，由於此實 20施例之多層疊加的結構，所以亦具有前述實施例之低壓差 與高過濾效率之優點。 其次，請再參照第五圖與第六圖，係本發明之第三實 施例’此實施例三層中間層2與兩間隔設置於其中的濾材3 ’由於此實施例亦為多層疊加的結構且由第六圖之實驗數 本紙張尺度適用中國國家標準（*5nS) A4規格了210;^7_公望了 546166 、發明說明（6 ) 具可知，所以本實施例乂 效率之優,點。 “述貫施例之低壓差與高過據 值得注意的是，雖缺前什每A /丨 目所右R ^…、月J述貝施例對中間層與濾材之數 ,秘a山 貝技術者當知，實際上可依需要 5增加中間層與滹材之屛I 、， 而要 舉。…履材之層數，亚不應受限於本說明書中所列 綜上所述，本發明之『古瑀 M 同透虱性濾材之製法』，確能 精上述所揭露之構造、裝 义 忒置達到預期之目的與功效，且 甲#刖未見於刊物亦未公開使用，您 m 付合發明專利之新穎、 〇 進步等要件。 惟，上述所揭之圖式及說明，僅為本發明之實施例而 已，非為限定本發明之實施；大凡熟悉該項技蔽之人仕， 其所依t發明之特徵範脅，所作之其他等效變:或修飾， 皆應涵蓋在以下本案之申請專利範圍内。 本紙張尺度適用中國國家標準（CNS) A4規格（210·χ 297公釐） 筮 Q 百 546166 A7 B7 五、發明說明C 7 ) 【元件標號對照】 ‘ 2中間層 21 第一表面 2 2第二表面 3濾材 本紙張尺度適用中國國家標準（CNS) A4規格（210x 297公釐） 篦 10 百546166 A7 __ —__ B7 V. Description of the invention (1) [Field of invention] The present invention provides a method for manufacturing a highly air-permeable filter material, in particular, a method in which two surfaces are bonded to each other above and below the intermediate layer for space and adhesion. Filter media (filtration media) to reduce the pressure difference and have high filtration efficiency of 5 high permeability filter media manufacturing method. [Background of the Invention] A conventional filter material with high filterability, such as the first figure, is formed by bonding a high-efficiency filter material with an adhesive on one surface of a non-woven fabric i i. Generally speaking, the requirements for two filtering media include high filtering efficiency and low pressure difference. 10 The filtering efficiency refers to the ratio of the number of particles removed after filtering to the number of particles before filtering, and the pressure difference refers to the air flow. The pressure value before passing through the filter medium is subtracted from the pressure value after passing through the filter medium. Although the filtration efficiency of the conventional high-filtration media can meet practical needs, the pressure difference is also high. High filtration media with high differential pressure may cause problems with reduced gas flow. For example, when the highly-filterable filter material known in Xi'an is used to filter air, the problem of reduced air flow after filtering impurities may occur. However, with the improvement of the filter material's performance, the pressure difference will also increase greatly. Therefore, if a filter material with a lower filtration efficiency can be used, the pressure difference can be greatly reduced. For example, the filtration efficiency is as high as 9 9 · The pressure difference between PTFE membrane and 20 filter media is 91.4% (generally defined as South filtration, and the efficiency is above 99.97%) is 151.4 mm water column. The ptfe thin mold of the present invention has a filtration efficiency of 99.895% and a pressure difference of 18.5 mm water column. Therefore, if stacked layers of filters and materials with low filtration efficiency can be used to solve conventional problems, low pressure difference and low pressure difference can be formed. Filter material with high filtration efficiency. [Summary of the invention] The paper size is in accordance with the Chinese National Standard (CNS) A4 specification (210χ 297 public love) 546166 A7 Γ ________ B7 V. Description of the invention (2) One object of the present invention is to provide a method for manufacturing a highly air-permeable filter material, which is provided in A filter material is adhered to both surfaces of the intermediate layer with a space and adhesive effect, so as to achieve the effects of filtration, efficiency and low pressure difference. Another object of the present invention is to provide a highly air-permeable filter material, which is composed of five intermediate layers with space and adhesion effect and two filter materials respectively disposed on the two surfaces of the intermediate layer, so as to achieve high filtering efficiency and low pressure difference. In order to achieve the above-mentioned object, a method for manufacturing a high-permeability filter material of the present invention includes the following steps: A) Provide an intermediate layer for space and adhesion, and the intermediate layer has a 10-to-one first and a first On the two surfaces, the intermediate layer is a composite fiber composed of two fibers with different melting points; and B) a filter material is attached to the first and second surfaces of the intermediate layer, respectively. The filter material is a polytetrafluoroethylene film. 、 Glass fiber paper and meltblown non-woven fabric are selected from the group, and the bonding is made by heating and pressurizing, so that the lower melting point fibers of the composite 15 fibers will be fused to adhere to these filter materials. This filter material uses a lower filtration efficiency, its filtration efficiency is less than 99 97% and its pressure difference is less than 18.5 mm water column. Furthermore, a high-permeability filter material of the present invention includes at least one intermediate layer having a first surface and a second surface opposite to each other, and having an interval and an adhesion effect of 20, and a plurality of intermediate layers adhered to the intermediate layers, respectively. The corresponding filter material on the surface is used to achieve high filtering efficiency and low pressure difference. [Brief description of the formula] Other features and advantages of the present invention will be clearly understood in the following detailed description of the preferred embodiment with reference to the drawings. In the drawings: 546166 A7 B7, the description of the invention It is a structure diagram of a conventional high-filtration filter material. The second figure is a schematic structural diagram of a preferred embodiment of the present invention. Chu Yi A picture is an overview of the measured results of the preferred embodiment of the second picture and the conventional high-filtration filter material under the same conditions. The fourth diagram is a schematic structural diagram of a second preferred embodiment of the present invention. The fifth diagram is a schematic structural diagram of a third preferred embodiment of the present invention. The sixth diagram is an overview of the test results of the third preferred embodiment of the fifth diagram and the conventional high-filtration filter material under the same conditions. [Detailed description of the invention] The first figure shows a first preferred embodiment of the present invention, which includes an intermediate layer 2 and two filter materials 3. The intermediate layer 2 has a first surface 21 and a second surface 22 opposite to each other. The intermediate layer 2 in this embodiment is used to maintain the space between the two filter materials 3. In addition, the intermediate layer 2 in this embodiment is a composite fiber composed of two fibers with different melting points, and the composite fiber 2 It can be a woven or non-woven fabric made of two fibers with different melting points. For example, the intermediate layer 2 can be made of polyethylene terephthalate fiber (PET) and modified polyethylene terephthalate fiber. (CopET), or made of a sheath core type composite fiber and side by side type composite fibers. 20 The two filter materials 3 cover the first surface 21 and the first surface 22 which are adhered to the intermediate layer 2, respectively. In this embodiment, the two filters and the material 3 have lower filtration efficiency (ie, a filtration efficiency of less than 99.97%) and are respectively placed on the first surface a and the second surface 22 of the intermediate layer 2 by using heating and The method of pressing to achieve the effect of sticking to the middle layer 2. And when the two filter media 3 are heated and pressed, the paper size of the middle reed 2 will apply the Chinese National Standard (CNS) A4 specification (210x 297 mm) 546166 A7 B7 V. Description of the invention (4 Among the lower melting points- The seed fiber reaches the melting point and is in a dazzling state, and serves as an adhesive to bond the two concrete materials 3. Therefore, the t-interlayer 2 has a function of maintaining a space between the two filter materials 3 and a function of bonding the two concrete materials 3. In addition, in this embodiment, the material of the filter material 3 may be polytetrafluoroethylene (pTFE), glass fiber paper, melt-blown nonwoven fabric, etc. According to the structure described above, this embodiment The manufacturing method generally includes two steps: Step A-providing the intermediate layer 2 and step β-respectively dissolving the melting point in the intermediate layer 2 by applying heat and pressure on the two surfaces 22 and 22 of the intermediate layer 2 respectively. The lower fiber is melted to fit the filter material 3. With this setting, a filtration efficiency of 10 99.995% and a pressure difference of 36 "mm water column (very less than the conventional pressure) can be achieved. In order to prove that the present invention can indeed solve the conventional high pressure The shortcomings of the poor, please refer to the third picture together, the air velocity is 32 kilometers Test the conventional high-filterability filter material and the high-permeability filter material of the present invention with 0.26 micron NaCl particles at 1 / min. In this test, the 15-portion fibrous body 2 of the high-permeability filter material of this example was tested. 895% Application of non-woven fabric made of polyethylene terephthalate fiber (pET) and modified & terephthalate fiber (coPET), and the material of filter material 3 is a filtration efficiency of 99. 895% PTFE membrane: 1. Differential pressure: The conventional high-filtration filter material has a pressure difference of up to 1 5 1 · 4 m of water column, while the pressure difference of a single PTFE membrane-attached filter material in this embodiment is 8 · 5 Millimeter of water column, so the theoretical value of the pressure difference of the high-permeability filter material laminated with the double-layer PTFE film in this embodiment is the cumulative pressure difference between the two layers of filter material, which is 37 millimeters of water column (18.5 + 18.5 = 37 millimeters of water column), The result of actual verification is that the water pressure of 361 millimeters is very small compared to the conventional pressure difference. Therefore, the paper size of the present invention is applicable to the Chinese National Standard (CNS) A4 (210x 297 mm). A7 B7 V. Description of the invention C 5) The advantage of low pressure difference can be achieved. 2 Filtering and efficiency: The conventional PTFE film is laminated with non-woven fabric. The filtration efficiency of the ptfe film used is 99.99%. The filtration efficiency 5 of the PTFE film used in this example is 99.895%, so when passing through the middle layer 2 When the first layer of ptfe filter material 3 above, its filtration efficiency can reach 9 9 · 8 95%, that is, only 0 · 105% particles remain after passing through the filter material 3, and then pass under the middle layer 2 After the second layer of PTFE material 3, the efficiency of this material 3 is also 9 9 8 9 5%, so there are only 0.0001 1025% particles (〇.〇〇15 * (卜 0.9895) = 0 0000011025 10), so the theoretical value of filtration efficiency can reach 99.999% (1-〇.〇〇〇〇〇〇1 1 025 = 0.999), and the actual verified data is 99. 995% (higher than commercial (99.97% of the chemical requirements) are also close to this theoretical data, so the present invention can not only solve the problem of the conventional high pressure difference, but also improve the advantages of filtration efficiency compared with the conventional one. 15 In summary, in the present invention, the two surfaces 21 and 22 of the intermediate layer 2 are respectively adhered to a filter medium 3, which can indeed achieve the advantages of low pressure difference and high filtration efficiency. Furthermore, please refer to the fourth figure, which is the second embodiment of the present invention. In this embodiment, the three-layer filter material 3 and the two intermediate layers 2 disposed at intervals are arranged in this embodiment. It has the advantages of low pressure difference and high filtration efficiency of the foregoing embodiments. Secondly, please refer to the fifth and sixth figures again, which is the third embodiment of the present invention. 'This embodiment has three layers of the middle layer 2 and two filter materials 3 spaced therebetween.' And according to the experimental paper size of the sixth figure, the Chinese national standard (* 5nS) A4 specification is 210; ^ 7_Public expectation 546166, invention description (6) can be known, so this embodiment has excellent efficiency and points. "It is worth noting that the low-pressure difference and the high value of the examples described are that although there are no previous R ^ ..., the number of intermediate layers and filter materials in the examples described above, The skilled person should know that, in fact, it is possible to increase the number of intermediate layers and materials according to the need, and to do so .... The number of layers of the crawler material should not be limited to those listed in this specification. The invention of the "manufacturing method of ancient 瑀 M with lice-permeable filter material" can indeed refine the structures and contents disclosed above to achieve the intended purpose and effect, and A # 刖 has not been seen in publications or used publicly. You pay Incorporates the novelty, progress, and other requirements of the invention patent. However, the drawings and descriptions disclosed above are only examples of the present invention, and are not intended to limit the implementation of the present invention. Those who are familiar with the technology, The characteristics of the invention depended on, and other equivalent changes: or modifications, should be covered by the scope of the patent application in the following case. This paper size applies the Chinese National Standard (CNS) A4 specification (210 · χ 297 mm) ) 筮 Q 百 546166166 A7 B7 V. Description of the invention C 7) [Comparison of component numbers] The first surface of the intermediate layer 21 2 2 2 3 medium of the present second surface of the paper suitable for China National Standard Scale (CNS) A4 size (210x 297 mm) one hundred grate 10