TWI617341B - Filter material - Google Patents
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- TWI617341B TWI617341B TW102133633A TW102133633A TWI617341B TW I617341 B TWI617341 B TW I617341B TW 102133633 A TW102133633 A TW 102133633A TW 102133633 A TW102133633 A TW 102133633A TW I617341 B TWI617341 B TW I617341B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
- B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
- B01D46/523—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material with means for maintaining spacing between the pleats or folds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/40—Particle separators, e.g. dust precipitators, using edge filters, i.e. using contiguous impervious surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0001—Making filtering elements
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- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
本發明之課題在於提供一種過濾器濾材及其製造方法，該過濾器濾材係可於持續施加的壓縮方向之力被除去之際，防止沿著壓縮方向之方向上的尺寸變得較壓縮前之尺寸來得短者。 An object of the present invention is to provide a filter medium and a method for manufacturing the filter medium, which can prevent the size in the direction along the compression direction from becoming smaller than before the compression when the force applied in the compression direction is removed. The size comes short.
解決手段之特徴在於：使配置於濾材胚料之其中一面側的各間隔保持部、與配置於濾材胚料之另一面側的各間隔保持部以隔著各平板部互相重疊的方式來構成。 A special feature of the solution is that each space holding portion disposed on one side of the filter material blank and each space holding portion disposed on the other side of the filter material are configured to overlap each other across the flat plate portions.
Description
本發明係關於將被過濾氣體所含粒子予以捕捉之過濾器濾材及其製造方法，特別是關於由構成為能夠捕捉該粒子的濾材胚料經打摺加工而成者。 The present invention relates to a filter medium for capturing particles contained in a filtered gas and a method for manufacturing the same, and more particularly, to a material obtained by performing a discount process on a blank of a filter medium configured to capture the particles.
自習知以來，作為在製造半導體及液晶之工廠的無塵室等所使用之過濾器濾材，已知如圖5所示的過濾器濾材100(參照專利文獻1)。該過濾器濾材100係將構成為能夠捕捉被過濾氣體所含粒子的濾材胚料200在複數位置加以彎曲而形成皺褶狀者。 As a filter medium used in a clean room of a factory for manufacturing semiconductors and liquid crystals, etc., the filter medium 100 shown in FIG. 5 is known (see Patent Document 1). This filter medium 100 is a structure in which a filter medium blank 200 capable of capturing particles contained in a gas to be filtered is bent at a plurality of positions to form a wrinkle.
這樣的過濾器濾材100具備有：複數的彎曲部100a，其係將濾材胚料200彎曲所形成者；複數的平板部100b，其係將濾材胚料200中彎曲部100a以外的區域呈相對向方式配置所形成者；複數的間隔保持部300，其係保持相鄰的平板部100b、100b彼此之間隔者。 Such a filter medium 100 includes a plurality of bent portions 100 a formed by bending a filter material blank 200, and a plurality of flat plates 100 b opposed to a region other than the bent portions 100 a in the filter material blank 200. The arrangement is formed by a method; the plurality of interval holding portions 300 are those which hold the interval between the adjacent flat plate portions 100b and 100b.
該間隔保持部300係由複數的珠(bead)部300a所形成者，該複數的珠部300a係在濾材胚料200的兩面間隔塗 佈接著劑(熱熔等)而形成者。具體來說，間隔保持部300係透過在濾材胚料200之其中一面側及另一面側的各平板部100b之間將已形成在各平板部100b的珠部300a彼此接合所形成者。即，間隔保持部300係形成在濾材胚料200之其中一面側及另一面側的各平板部100b之間。 The interval maintaining portion 300 is formed by a plurality of bead portions 300 a, and the plurality of bead portions 300 a are applied on both sides of the filter material blank 200 at intervals. Formed by cloth adhesive (hot melt, etc.). Specifically, the space holding portion 300 is formed by joining the bead portions 300 a formed on the flat plate portions 100 b to each other between the flat plate portions 100 b on one side and the other side of the filter material blank 200. That is, the interval holding portion 300 is formed between each of the flat plate portions 100 b on one side and the other side of the filter material blank 200.
又，形成於濾材胚料200之其中一面側的間隔保持部300，與形成於另一面側的間隔保持部300，係以隔著平板部100b不會相互重疊的方式來構成。具體來說，濾材胚料200之其中一面側的間隔保持部300係沿著彎曲部100a間隔配置有複數個，且濾材胚料200之另一面側的間隔保持部300係配置在相鄰之其中一面側的間隔保持部300、300之間。藉此，相較於在平板部100b的整個區域形成珠部300a而形成有間隔保持部300的狀況更減少了接著劑的使用量。 In addition, the interval holding portion 300 formed on one side of the filter material blank 200 and the interval holding portion 300 formed on the other side are configured so as not to overlap each other across the flat plate portion 100b. Specifically, a plurality of interval holding portions 300 on one side of the filter material blank 200 are arranged along the curved portion 100a, and the interval holding portions 300 on the other side of the filter material blank 200 are arranged adjacent to each other. Between the space holding portions 300 and 300 on one surface side. Thereby, compared with the case where the bead part 300a is formed in the whole area of the flat plate part 100b, and the space | interval holding part 300 is formed, the usage-amount of an adhesive agent is reduced.
不過，對上述般的過濾器濾材100，有施加有使平板部100b彼此之間隔變狹窄的力(具體來說，沿著相對於平板部100b呈交叉的方向來壓縮過濾器濾材100之力)(以下，亦稱為壓縮方向的力)的狀況。舉例來說，當過濾器濾材100經容納在袋體的狀況時，有下述狀況：成為因袋體而將壓縮方向的力施加在過濾器濾材100的狀態。又，當使得平板部100b呈略水平之狀態來儲存過濾器濾材100的狀況時，成為因為自身重量而壓縮方向的力施加在過濾器濾材100的狀態。 However, the above-mentioned filter medium 100 has a force applied to narrow the interval between the flat plate portions 100b (specifically, a force to compress the filter medium 100 in a direction crossing the flat plate portion 100b) (Hereinafter, also referred to as a force in the compression direction). For example, when the filter medium 100 is accommodated in a bag, there is a situation where a force in a compression direction is applied to the filter medium 100 due to the bag. When the flat plate portion 100b is stored in a slightly horizontal state to store the filter medium 100, a force in the compression direction due to its own weight is applied to the filter medium 100.
且，若維持在過濾器濾材100施加壓縮方向的力的狀態，恐有固定在平板部100b彼此的間隔狹窄的狀態之 虞。 In addition, if the state in which the filter medium 100 is applied with a force in the compression direction is maintained, there may be a state where the interval between the fixed flat plates 100b is narrow. Yu.
具體來說，就施加壓縮方向之力前的過濾器濾材100而言，如圖6(a)所示，藉由間隔保持部300來保持平板部100b彼此的間隔S，但由於在過濾器濾材100施加壓縮方向的力，如圖6(b)所示，濾材胚料200之其中一面側的間隔保持部300，與濾材胚料200之另一面側的間隔保持部300成為沿著壓縮方向接近。因此，在各平板部100b產生變形而各平板部100b彼此的間隔S變狹窄。然後，要是壓縮方向的力施加在過濾器濾材100的狀態持續，則有各平板部100b的形狀不會恢復到變形前的狀態(在過濾器濾材100施加壓縮方向的力之前的狀態)，而固定在平板部100b彼此的間隔S狹窄的狀態之虞。 Specifically, as for the filter medium 100 before the force in the compression direction is applied, as shown in FIG. 6 (a), the interval S between the flat plate portions 100 b is maintained by the interval holding portion 300. A force of 100 is applied in the compression direction. As shown in FIG. 6 (b), the interval holding portion 300 on one side of the filter material blank 200 and the interval holding portion 300 on the other side of the filter material blank 200 are close to each other along the compression direction. . Therefore, the flat plate portions 100b are deformed, and the interval S between the flat plate portions 100b becomes narrow. Then, if the state in which the force in the compression direction is applied to the filter medium 100 continues, the shape of each flat plate portion 100b does not return to the state before deformation (the state before the filter medium 100 applies the force in the compression direction), and There may be a state where the distance S between the flat plate portions 100b is narrow.
如此，要是各平板部100b彼此的間隔S變狹窄，則沿著壓縮方向之方向的過濾器濾材100的尺寸變得比所欲的尺寸來得短。因此，舉例來說，在過濾器濾材100安裝於模板而形成過濾器單元之際，在過濾器濾材100與模板之間產生間隙，而成為密閉性差的過濾器單元。又，由於各平板部100b之間的間隔變狹窄，亦有過濾器濾材100的壓力損失變大之虞。 As described above, if the interval S between the flat plate portions 100b becomes narrow, the size of the filter medium 100 in the direction of the compression direction becomes shorter than a desired size. Therefore, for example, when the filter medium 100 is mounted on a template to form a filter unit, a gap is generated between the filter medium 100 and the template to become a filter unit with poor airtightness. Moreover, since the space | interval between each flat plate part 100b becomes narrow, there exists a possibility that the pressure loss of the filter medium 100 may become large.
專利文獻1 日本特開平09-313856號公報 Patent Document 1 Japanese Patent Application Publication No. 09-313856
因此，本發明以提供下述的過濾器濾材及其製造方法為課題，該過濾器濾材係可於持續地施加的壓縮方向之力被除去之際，防止沿著壓縮方向之方向上的尺寸變得比壓縮前之尺寸來得短者。 It is therefore an object of the present invention to provide a filter medium and a method for manufacturing the filter medium, which can prevent dimensional changes in the direction of the compression direction when the force applied in the compression direction is removed continuously. It is shorter than the size before compression.
根據本發明之過濾器濾材，其具備：複數的彎曲部，其係將構成為能夠捕捉被過濾氣體所含粒子的濾材胚料彎曲為皺褶狀所形成者；複數的平板部，其係將濾材胚料中彎曲部以外的區域呈相對向方式配置所形成者；以及複數的間隔保持部，其係構成配置在濾材胚料之其中一面側及另一面側的各平板部之間以保持相鄰之彎曲部彼此的間隔者，且其特徴係在於：配置於濾材胚料之其中一面側的各間隔保持部與配置於濾材胚料之另一面側的各間隔保持部係以隔著各平板部相互重疊的方式來構成。 A filter medium according to the present invention includes: a plurality of curved portions formed by bending a filter material blank capable of capturing particles contained in a gas to be filtered into a wrinkle shape; and a plurality of flat portions including a plurality of curved portions. The filter material blank is formed by arranging the areas other than the curved portion in an opposite manner; and a plurality of space retaining portions are configured to be arranged between the flat plate portions on one side and the other side of the filter material blank to maintain phase. Adjacent curved portions are spaced apart from each other, and the special feature is that each interval holding portion disposed on one side of the filter material blank and each interval holding portion disposed on the other side of the filter material are spaced between the flat plates The parts are structured so as to overlap each other.
依據這樣的構成，透過配置於濾材胚料之其中一面側的間隔保持部(以下，亦稱為其中一面側間隔保持部)、與配置於濾材胚料之另一面側的間隔保持部(亦稱為另一面側間隔保持部)隔著平板部相互重疊，則即便壓縮方向的力施加在過濾器濾材時，仍能防止各平板部的變形，並防止各平板部彼此的間隔變狹窄。 According to such a configuration, the space holding portion (hereinafter, also referred to as the one-side space holding portion) disposed on one side of the filter material blank and the space holding portion (also referred to as the “side-space holding portion”) disposed on the other side of the filter material blank The space-retaining portion on the other side is overlapped with each other across the flat plate portion. Even when a force in the compression direction is applied to the filter medium, the flat plate portions can be prevented from being deformed and the space between the flat plate portions can be prevented from becoming narrow.
具體來說，透過其中一面側間隔保持部與另一面側間隔保持部隔著平板部相互重疊，當在過濾器濾材施加有壓縮方向之力時，亦可防止其中一面側間隔保持部與另 一面側間隔保持部沿著壓縮方向接近。藉此，可防止位於其中一面側間隔保持部與另一面側間隔保持部之間的平板部變形，而可防止平板部彼此的間隔變狹窄。藉此，可防止過濾器濾材之沿著壓縮方向之方向上的尺寸變短。 Specifically, one of the side-surface spacers and the other side-surface spacers overlap each other across a flat plate portion. When a force in the compression direction is applied to the filter medium, one of the side-surface spacers and the other can be prevented. The one-side space holding portion approaches in the compression direction. Thereby, deformation of the flat plate portion between the one-side space holding portion and the other-side space holding portion can be prevented, and the interval between the flat plate portions can be prevented from becoming narrow. This can prevent the size of the filter medium in the direction along the compression direction from being shortened.
又，配置於濾材胚料之其中一面側的間隔保持部與配置於濾材胚料之另一面側的間隔保持部，宜以在平板部的中央部隔著平板部相互重疊的方式來構成。 Moreover, it is preferable that the space | interval holding part arrange | positioned on the one surface side of a filter material blank and the space | interval hold part arrange | positioned on the other surface side of a filter material blank are comprised so that it may overlap with each other via a flat plate part in the center part of a flat plate part.
依據這樣的構成，可更有效地防止在過濾器濾材施加有壓縮方向的力之際產生之平板部的變形。因此，可更有效地保持過濾器濾材在沿著壓縮方向之方向上的尺寸。 According to such a configuration, deformation of the flat plate portion that occurs when a force in the compression direction is applied to the filter medium can be more effectively prevented. Therefore, it is possible to more effectively maintain the size of the filter medium in the direction along the compression direction.
具體來說，平板部的中央部(具體來說，連接於一個平板部之一對彎曲部間的中央部，或是，彎曲部延伸方向的中央部)之剛性係變得低於平板部的外周部。因此，當在過濾器濾材施加有壓縮方向的力之際，平板部的中央部變得容易變形。因此，透過其中一面側間隔保持部與另一面側間隔保持部在平板部的中央部隔著平板部相互重疊，則可如上所述，有效防止平板部的變形。藉此，可更有效地保持過濾器濾材沿著壓縮方向之方向上的尺寸。 Specifically, the rigidity of the central portion of the flat plate portion (specifically, the central portion connected to a pair of curved portions of one flat plate portion, or the central portion in the extending direction of the curved portion) becomes lower than that of the flat plate portion. Peripheral section. Therefore, when a force in the compression direction is applied to the filter medium, the central portion of the flat plate portion easily deforms. Therefore, when one of the surface-side space holding portions and the other surface-side space holding portion overlap each other at a central portion of the flat plate portion via the flat plate portion, as described above, deformation of the flat plate portion can be effectively prevented. This makes it possible to more effectively maintain the size of the filter medium in the direction of the compression direction.
配置於濾材胚料之其中一面側及另一面側的各間隔保持部，係以相對於直線狀地延伸的彎曲部呈交叉的方式沿著平板部直線狀地形成；相對於一個平板部中與一對彎曲部之連結位置間的長度，自彎曲部與平板部的連結位置至各間隔保持部之一端 部為止之長度係以超過50%為佳。 Each of the space holding portions disposed on one side and the other side of the filter material blank is formed linearly along the flat plate portion so as to intersect with the curved portion extending linearly; with respect to one flat plate portion and The length between the connecting positions of the pair of bent portions, from the connecting position of the bent portion and the flat plate portion to one end of each interval holding portion More than 50% of the length is preferred.
依據這樣的構成，由於相對於平板部中與一對彎曲部之連結位置間的長度，自彎曲部與平板部的連結位置至各間隔保持部之一端部為止的長度超過50%，而使得其中一面側間隔保持部與另一面側間隔保持部在平板部的中央部隔著平板部相互重疊。又，因為其中一面側間隔保持部與另一面側間隔保持部係自與彎曲部交叉之位置跨至平板部之中央部配置的緣故，位於其中一面側間隔保持部與另一面側間隔保持部之間之平板部的剛性提升，而可更加抑制平板部的變形。 According to such a configuration, the length from the connection position between the curved portion and the flat plate portion to one end portion of each interval holding portion exceeds 50% with respect to the length between the connection position of the flat plate portion and the pair of curved portions, so that The one-side space holding portion and the other-side space holding portion overlap each other at a central portion of the flat plate portion via the flat plate portion. In addition, one of the side-surface interval holding portions and the other-side surface interval holding portion are arranged across the curved portion to the central portion of the flat plate portion. The rigidity of the flat plate portion is increased, and the deformation of the flat plate portion can be more suppressed.
根據本發明之過濾器濾材的製造方法，該過濾器濾材具備：複數的彎曲部，其係將構成為能夠捕捉被過濾氣體所含粒子的濾材胚料彎曲為皺褶狀所形成者；複數的平板部，其係將濾材胚料中彎曲部以外的區域呈相對向方式配置所形成者；以及複數的間隔保持部，其係構成配置在濾材胚料之其中一面側及另一面側之各平板部間以保持相鄰的彎曲部彼此之間隔者，其特徵在於：在前述濾材胚料中形成各平板部之區域的兩面以隔著濾材胚料互相重疊的方式配置有接著劑之後，使濾材胚料彎曲為皺褶狀以形成複數的彎曲部及複數的平板部，同時在濾材胚料之其中一面側及另一面側的各平板部之間，將濾材胚料其中一面側的接著劑彼此接合以及將另一面側的接著劑彼此接合，以隔著各平板部相互重疊的方式在濾材胚料其中一面側及另一面側形成間隔保持部。 According to the method for manufacturing a filter medium of the present invention, the filter medium includes: a plurality of bent portions formed by bending a filter material blank capable of capturing particles contained in a gas to be filtered into a wrinkle shape; The flat plate portion is formed by arranging the areas other than the curved portion of the filter material blank in an opposite direction; and the plurality of space holding portions constitute each plate arranged on one side and the other side of the filter material blank. In order to maintain the space between adjacent curved portions between the parts, the two sides of the region forming each flat plate portion in the filter material blank are arranged with an adhesive so as to overlap each other across the filter material blank, and then the filter material is formed. The blank is bent into a wrinkle shape to form a plurality of curved portions and a plurality of flat plate portions. At the same time, the adhesive on one side of the filter material blank is bonded to each other between each of the flat plate portions of the filter material blank. Bonding and bonding of the adhesive on the other surface side to form a space maintaining portion on one surface side and the other surface side of the filter material blank so as to overlap each other across the flat plate portions.
如以上，依據本發明，於持續施加的壓縮方向的力被除去之際，可防止沿著壓縮方向之方向上的尺寸變得較壓縮前的尺寸來得短。 As described above, according to the present invention, when the force in the compression direction that is continuously applied is removed, it is possible to prevent the dimension in the direction along the compression direction from becoming shorter than the dimension before compression.
1‧‧‧過濾器濾材 1‧‧‧ filter media
1a‧‧‧彎曲部 1a‧‧‧Bend
1b‧‧‧平板部 1b‧‧‧ Flat
2‧‧‧濾材胚料 2‧‧‧ filter material blank
2a‧‧‧多孔層 2a‧‧‧ porous layer
2b‧‧‧基材層 2b‧‧‧ substrate layer
3‧‧‧間隔保持部 3‧‧‧ interval maintaining unit
3a‧‧‧珠部 3a‧‧‧Bead
3’‧‧‧間隔保持部 3’‧‧‧ interval holding unit
3a’‧‧‧珠部 3a’‧‧‧ Bead Department
3”‧‧‧間隔保持部 3 ”‧‧‧ Interval holding section
3a”‧‧‧珠部 3a ”‧‧‧Bead
100‧‧‧過濾器濾材 100‧‧‧ Filter media
100a‧‧‧彎曲部 100a‧‧‧curved part
100b‧‧‧平板部 100b‧‧‧ Flat Department
200‧‧‧濾材胚料 200‧‧‧ Filter Material
300‧‧‧間隔保持部 300‧‧‧ Interval holding section
300a‧‧‧珠部 300a‧‧‧Bead
A1‧‧‧彎曲預定區域 A1‧‧‧Bend scheduled area
A2‧‧‧平板部預定區域 A2‧‧‧ Flat area
B1‧‧‧間隔保持部重合部 B1‧‧‧ Interval maintaining section overlap section
L1‧‧‧過濾器濾材1之長度 L1‧‧‧ length of filter media 1
L2‧‧‧過濾器濾材1之寬度 L2‧‧‧Filter Width of Filter Media 1
L3‧‧‧過濾器濾材1的高度 L3‧‧‧ height of filter media 1
S‧‧‧平板部100b彼此的間隔 Space between S‧‧‧ flat sections 100b
圖1係顯示本實施形態之過濾器濾材的透視圖。 FIG. 1 is a perspective view showing a filter medium of the present embodiment.
圖2係顯示相同實施形態之濾材胚料的透視圖及一部分放大圖。 FIG. 2 is a perspective view and a partially enlarged view of a filter material blank of the same embodiment.
圖3(a)係將相同實施形態之過濾器濾材在與平板部交叉之面切斷後之截面圖，圖3(b)係將間隔保持部重合部在沿著過濾器濾材之長度方向及寬度方向之面切斷後的截面圖。 Fig. 3 (a) is a cross-sectional view of a filter medium of the same embodiment cut on a surface intersecting with a flat plate portion, and Fig. 3 (b) is a view of the overlapping portion of the interval maintaining portion along the length and width of the filter medium A cross-sectional view of a directional surface cut.
圖4(a)係顯示其他實施形態之過濾器濾材之間隔保持部的截面圖，圖4(b)係顯示又一其他實施形態之過濾器濾材之間隔保持部的截面圖。 FIG. 4 (a) is a cross-sectional view showing a gap holding portion of a filter medium of another embodiment, and FIG. 4 (b) is a cross-sectional view showing a gap holding portion of a filter medium of another embodiment.
圖5係顯示習知過濾器濾材的透視圖。 Fig. 5 is a perspective view showing a conventional filter medium.
圖6係將圖5之過濾器濾材在與各平板部交叉之面切斷後之截面圖，圖6(a)係顯示在過濾器濾材施加壓縮方向的力前之狀態的截面圖，圖6(b)係顯示在過濾器濾材施加有壓縮方向之力之狀態的截面圖。 FIG. 6 is a cross-sectional view of the filter medium of FIG. 5 after being cut at a surface that intersects each flat plate portion, and FIG. 6 (a) is a cross-sectional view showing a state before the filter medium exerts a force in a compression direction, and FIG. 6 ( b) A cross-sectional view showing a state in which a force in a compression direction is applied to the filter medium.
以下，參照圖1~3對本發明的實施形態進行說明。再者，在以下的圖式中相同或對應的部分係附上相同 的參照符號，不再重複其之說明。 Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 3. Moreover, the same or corresponding parts in the following drawings are attached with the same The reference symbols are not repeated.
如圖1所示，根據本實施形態的過濾器濾材1係具備：複數的彎曲部1a，其係將構成為能夠捕捉被過濾氣體所含粒子的濾材胚料2彎曲為皺褶狀(以下，亦稱為打摺加工)所形成者；複數的平板部1b，其係將濾材胚料2中彎曲部1a以外的區域呈相對向方式配置所形成者；以及複數的間隔保持部3，其係構成配置在濾材胚料2之其中一面側及另一面側之各平板部1b之間以保持相鄰之彎曲部1a、1a彼此的間隔者。 As shown in FIG. 1, the filter medium 1 according to the present embodiment includes a plurality of curved portions 1 a that are bent into a wrinkled shape (hereinafter, the filter medium blank 2) configured to capture particles contained in the gas to be filtered. (Also known as discount processing); plural flat plate portions 1b formed by arranging the areas other than the curved portion 1a in the filter material blank 2 in a facing manner; and plural interval holding portions 3, which are formed by The flat plate portion 1b is arranged between one surface side and the other surface side of the filter material blank 2 so as to maintain a space between adjacent curved portions 1a and 1a.
如圖2所示，前述濾材胚料2在彎曲為皺褶狀前的狀態，係形成為一方向會成為長邊的平面狀。再者，濾材胚料2，亦可構成以一方向為長邊的方式形成長條狀並藉由從經捲取狀態退捲而成為平面狀的狀態，亦可為以一方向為長邊的方式形成平面狀的薄片體。 As shown in FIG. 2, the state of the filter material blank 2 before being bent into a wrinkle shape is formed into a flat shape with long sides in one direction. In addition, the filter material blank 2 may be formed into a long shape with one direction as a long side and unrolled from a warped state to a flat state, or a direction with long sides in one direction. Form a flat sheet.
又，濾材胚料2係具備多孔層2a與基材層2b，該多孔層2a會捕捉被過濾氣體所含粒子，而該基材層2b具有通氣性並且積層在該多孔層2a。就本實施形態而言，濾材胚料2係具備複數(具體來說，2個)的多孔層2a，且在多孔層2a彼此之間配置有基材層2b。如此，相較於由單一的多孔層2a形成濾材胚料2的狀況，透過使用複數的多孔層2a形成濾材胚料2，可抑制在壓力損失及捕捉效率上產生參差。又，由於可抑制形成貫通濾材胚料2般的小孔，而可獲得不漏的構造之濾材胚料2。 The filter material blank 2 includes a porous layer 2a and a base material layer 2b. The porous layer 2a captures particles contained in the filtered gas. The base material layer 2b has air permeability and is laminated on the porous layer 2a. In this embodiment, the filter material blank 2 includes a plurality of (specifically, two) porous layers 2a, and a base material layer 2b is arranged between the porous layers 2a. In this way, compared with the case where the filter material blank 2 is formed of a single porous layer 2a, by forming the filter material blank 2 using a plurality of porous layers 2a, it is possible to suppress variations in pressure loss and capture efficiency. In addition, since the formation of small holes penetrating through the filter material blank 2 can be suppressed, the filter material blank 2 having a leak-proof structure can be obtained.
前述多孔層2a係使用前述構成為能夠捕捉粒子 的多孔片材(以下，亦稱為多孔片)所形成。就該多孔片而言，未被特別限定，因應過濾器濾材1的用途來適宜選擇。舉例來說，可使用聚四氟乙烯(PTFE)形成為片狀而成的PTFE片。就該PTFE片的形成方法而言，例如，可採用下述的方法。 The porous layer 2a is configured to be able to capture particles using the above-mentioned configuration. Porous sheet (hereinafter, also referred to as porous sheet). The porous sheet is not particularly limited, and is appropriately selected depending on the use of the filter medium 1. For example, a polytetrafluoroethylene (PTFE) sheet may be used. As a method for forming the PTFE sheet, for example, the following method can be adopted.
具體來說，在PTFE細粉添加液體潤滑劑而形成糊狀的混合物。就PTFE細粉而言，未被特別地限制，舉例而言，可使用Polyflon F-104(大金工業股份有限公司(Daikin Industries,Ltd.)製)，Fluon CD-123(旭‧ICI氟聚合物公司(Asahi ICI Fluoropolymers Co.,Ltd.)製)，Teflon 6J(杜邦-三井氟化學股份有限公司(Du Pont-Mitsui Fluorochemicals Co.,Ltd.)製)等。就液體潤滑劑而言，未被特別限定，係能夠對混合物表面賦予適度的濕潤性者即可，以能夠透過萃取處理或加熱處理來除去者為特佳。舉例來說：在流動石蠟、石腦油、白油、甲苯、二甲苯等烴油之外，可使用醇類、酮類、酯類以及此等之2種類以上的混合物等作為液體潤滑劑。就液體潤滑劑的添加量而言，未被特別限定，可依PTFE細粉及液體潤滑劑之種類、PTFE片的成形方法來適宜調整。具體來說，相對於PTFE細粉100質量份，液體潤滑劑之添加量宜為5質量份以上50質量份以下。 Specifically, a liquid lubricant is added to the PTFE fine powder to form a paste-like mixture. The PTFE fine powder is not particularly limited. For example, Polyflon F-104 (manufactured by Daikin Industries, Ltd.), Fluon CD-123 (Asahi ‧ ICI fluoropolymer) can be used. (Produced by Asahi ICI Fluoropolymers Co., Ltd.), Teflon 6J (produced by Du Pont-Mitsui Fluorochemicals Co., Ltd.), and the like. The liquid lubricant is not particularly limited, as long as it can impart moderate wettability to the surface of the mixture, and it is particularly preferred that it can be removed by extraction treatment or heat treatment. For example, in addition to hydrocarbon oils such as flowing paraffin, naphtha, white oil, toluene, and xylene, alcohols, ketones, esters, and mixtures of two or more of these can be used as liquid lubricants. The amount of the liquid lubricant to be added is not particularly limited, and can be appropriately adjusted depending on the type of the PTFE fine powder and the liquid lubricant and the method of forming the PTFE sheet. Specifically, the addition amount of the liquid lubricant is preferably 5 parts by mass or more and 50 parts by mass or less with respect to 100 parts by mass of the PTFE fine powder.
然後，預成形由PTFE細粉及液體潤滑劑構成之前述混合物，來製作預成形體。具體來說，透過將前述混合物擠出成形為棒狀來製作預成形體。這樣的預成形以利用液體潤滑劑不會自混合物分離程度的壓力來進行為佳。 Then, the aforementioned mixture composed of PTFE fine powder and a liquid lubricant is preformed to prepare a preform. Specifically, a preform is produced by extruding the aforementioned mixture into a rod shape. Such pre-forming is preferably performed by using a pressure at which the liquid lubricant does not separate from the mixture.
其次，所獲得之預成形體係透過擠出成形或軋延成形來成形為片狀。具體來說，可舉出如：將預成形體供給至一對軋輥間進行軋延而形成片狀的方法、將預成形體擠出成形為片狀的方法、或是，將預成形體經擠出成形為片狀者進一步供給至一對軋輥間進行軋延而形成片狀的方法等。就所獲得之片狀成形體的厚度而言，未被特別限定，舉例來說，以0.05mm以上且0.5mm以下為佳。 Second, the obtained preforming system is formed into a sheet shape by extrusion molding or calendering. Specific examples include a method of feeding a preform between a pair of rolls and rolling to form a sheet, a method of extruding the preform into a sheet, or a method of A method of extruding a sheet into a sheet is further provided between a pair of rolls and rolled to form a sheet. The thickness of the obtained sheet-shaped formed body is not particularly limited, but is preferably, for example, 0.05 mm or more and 0.5 mm or less.
其次，所獲得之片狀成形體透過單軸拉伸或雙軸拉伸，使之多孔化而成為PTFE片。就本實施形態而言，係將片狀的成形體沿著長向拉伸，同時亦沿著垂直於長向的寬度方向拉伸(雙軸拉伸)。此外，在片狀的成形體進行拉伸之前，以自該成形體除去液體潤滑劑為佳。作為除去液體潤滑劑的方法，可採用對該成形體加熱的方法(加熱法)或、將該成形體浸漬在溶劑再萃取液體潤滑劑的方法(萃取法)。 Next, the obtained sheet-like formed body is made porous by uniaxial stretching or biaxial stretching, and becomes a PTFE sheet. In this embodiment, the sheet-shaped molded body is stretched in the longitudinal direction, and also stretched in the width direction perpendicular to the longitudinal direction (biaxial stretching). In addition, before the sheet-like formed body is stretched, it is preferable to remove the liquid lubricant from the formed body. As a method of removing the liquid lubricant, a method of heating the formed body (heating method) or a method of immersing the formed body in a solvent and then extracting the liquid lubricant (extraction method) can be adopted.
於片狀的成形體沿著長向拉伸之際，拉伸比大者則該成形體的纖維化受到促進而易於多孔化。就拉伸比而言，舉例來說，以10倍以上且30倍以下為佳。又，就拉伸該成形體之際的溫度條件而言，未被特別限定，舉例來說，以150℃以上且低於327℃為佳。 When the sheet-like formed body is stretched in the longitudinal direction, the larger the draw ratio, the fibrosis of the formed body is promoted and the porous body is easily made porous. The stretching ratio is, for example, preferably 10 times or more and 30 times or less. Moreover, the temperature conditions at the time of drawing this molded object are not specifically limited, For example, it is preferable that it is 150 degreeC or more and less than 327 degreeC.
經沿著長向拉伸後之片狀的成形體，藉由沿著寬度方向進行拉伸，使該成形體有效地纖維化，可獲得孔徑的參差少的PTFE片。就片狀之成形體沿著寬度方向進行拉伸的條件而言，未被特別限定，舉例來說，以拉伸比為20倍以上且100倍以下為佳。又，以與先前之長向的拉伸比的 積所表示之面積拉伸比為450倍以上來將片狀成形體沿著寬度方向拉伸為佳。面積拉伸比越大則越發促進纖維化，可獲得PF值大的多孔的PTFE片。又，就拉伸溫度而言，未被特別限定，舉例來說，以40℃以上且100℃以下為佳。 After the sheet-like formed body stretched in the longitudinal direction is stretched in the width direction, the formed body is effectively fibrillated to obtain a PTFE sheet with less variation in pore size. The conditions under which the sheet-like formed article is stretched in the width direction are not particularly limited, and for example, it is preferable that the stretching ratio is 20 times or more and 100 times or less. In addition, the It is preferable that the area stretch ratio indicated by the product is 450 times or more to stretch the sheet-shaped molded body in the width direction. The larger the area stretch ratio, the more fibrosis is promoted, and a porous PTFE sheet having a large PF value can be obtained. The stretching temperature is not particularly limited. For example, it is preferably 40 ° C or higher and 100 ° C or lower.
如以上般所形成之PTFE片成為具有壓力損失為50mmH2O以下，捕捉效率為99.9%以上之優異特性者。特別係，當面積拉伸比為450倍以上的狀況時，捕捉效率沒有太大地降低且壓力損失降低至低於20mmH2O，並且，PF值成為22以上，而成為極優異性能的多孔PTFE片。又，所獲得的每一PTFE片之壓力損失的參差亦變得小。因此，成為操作成本低，且顯示極優異除塵性能的多孔PTFE片。 The PTFE sheet formed as described above has excellent characteristics with a pressure loss of 50 mmH 2 O or less and a capture efficiency of 99.9% or more. In particular, when the area stretch ratio is 450 times or more, the capture efficiency is not greatly reduced and the pressure loss is reduced to less than 20 mmH 2 O, and the PF value is 22 or more, which makes it a porous PTFE sheet with excellent performance . Moreover, the variation in the pressure loss of each PTFE sheet obtained is also small. Therefore, it becomes a porous PTFE sheet which is low in operation cost and shows extremely excellent dust removal performance.
再者，如以上進行所獲得之PTFE片，為了獲得強度提升及尺寸穩定性，亦可進一步進行熱處理(燒成處理)。PTFE片的熱處理，通常，在PTFE燒成體的熔點以上經固定尺寸而進行。又，藉由這樣的熱處理，變得能夠使壓力損失降低。因此，當顯示PTFE片的PF值為22以上，且壓力損失為20mmH2O以上的狀況時，藉由此熱處理亦可能使壓力損失降低到低於20mmH2O。 In addition, the PTFE sheet obtained as described above may be further subjected to heat treatment (firing treatment) in order to obtain strength improvement and dimensional stability. The heat treatment of the PTFE sheet is usually performed at a fixed size or higher than the melting point of the PTFE fired body. In addition, by such heat treatment, it becomes possible to reduce the pressure loss. Therefore, when the PF value of the PTFE sheet is 22 or more and the pressure loss is 20 mmH 2 O or more, the heat treatment may also reduce the pressure loss to less than 20 mmH 2 O.
如以上般所形成之PTFE片，以在依示差掃描熱卡計所得之結晶熔解曲線上之345±5℃的溫度區域具有吸熱峰為佳。又，這樣的PTFE片，以結晶轉化率為0.25以上且0.85以下為佳。又，這樣的PTFE片，以比重(將質量以表觀體積除之所得的「表觀比重」)成為1.4以下為佳。 The PTFE sheet formed as described above preferably has an endothermic peak in a temperature range of 345 ± 5 ° C on a crystal melting curve obtained by a differential scanning thermal card meter. Such a PTFE sheet preferably has a crystal conversion rate of 0.25 or more and 0.85 or less. Such a PTFE sheet preferably has a specific gravity (the "apparent specific gravity" obtained by dividing the mass by the apparent volume) of 1.4 or less.
前述基材層2b係由具有通氣性的片材(以下，亦 稱為通氣性片)所形成。就通氣性片而言，未被特別限定，例如可舉：不織布、織布、網狀織物等。特別係當使多孔層2a(多孔層片)與基材層2b(通氣性片)熱熔接(熱層合)的狀況時，以由具有熱可塑性之素材構成的通氣性片為佳。 The base material layer 2b is made of a breathable sheet (hereinafter, also referred to as (Called a breathable sheet). The breathable sheet is not particularly limited, and examples thereof include a non-woven fabric, a woven fabric, and a mesh fabric. In particular, when the porous layer 2a (porous layer sheet) and the base material layer 2b (breathable sheet) are thermally welded (thermally laminated), a breathable sheet made of a material having thermoplastic properties is preferred.
就通氣性片的材質而言，例如可舉：聚乙烯或聚丙烯等聚烯烴、耐綸、聚酯、聚芳醯胺(具體來說，芳香族系聚醯胺等)，或者，經複合此等所得者(例如，由芯/鞘結構之纖維構成的不織布、或低熔點材料與高熔點材料的2層不織布等)。此外，就通氣性片的材質而言，例如可舉：PFA(四氟乙烯/全氟烷基乙烯醚共聚物)，FEP(四氟乙烯/六氟丙烯共聚物)，PTFE多孔薄膜等氟系多孔薄膜。 As for the material of the breathable sheet, for example, polyolefins such as polyethylene or polypropylene, nylon, polyester, polyaramide (specifically, aromatic polyamines, etc.), or a compound Those obtained (for example, a non-woven fabric made of fibers having a core / sheath structure, or a two-layer non-woven fabric made of a low-melting material and a high-melting material). In addition, as for the material of the breathable sheet, for example, PFA (tetrafluoroethylene / perfluoroalkyl vinyl ether copolymer), FEP (tetrafluoroethylene / hexafluoropropylene copolymer), fluorine-based films such as PTFE porous film, etc. may be mentioned. Porous film.
特別地，芯鞘結構之複合纖維，可舉芯成分係由熔點相較於鞘成分相對高的合成纖維構成的不織布，或由低熔點材料與高熔點材料2層構成的不織布等構成的通氣性片。藉由使用這樣的不織布，於將多孔層2a(多孔層片)與基材層2b(通氣性片)熱層合之際，抑制在基材層2b產生收縮。又，藉由使用這樣的不織布，濾材胚料2成為打摺加工時的加工性良好者，而濾材胚料2被彎曲之位置(摺疊間距(folding pitch))能夠增加。 In particular, a composite fiber having a core-sheath structure can be permeable to a core composed of a non-woven fabric composed of a synthetic fiber having a relatively high melting point compared to a sheath composition, or a non-woven fabric composed of a low-melting material and a high-melting material in two layers. sheet. By using such a non-woven fabric, when the porous layer 2a (porous layer sheet) and the base material layer 2b (breathable sheet) are thermally laminated, shrinkage of the base material layer 2b is suppressed. Moreover, by using such a non-woven fabric, the filter material blank 2 becomes a good processability at the time of a folding process, and the position (folding pitch) at which the filter material blank 2 is bent can be increased.
就上述般的濾材胚料2的形成方法而言，未被特別限定，舉例來說，可係在形成多孔層2a之多孔片與形成基材層2b之通氣性片之間，配置熱熔或壓感型的接著劑，來壓接多孔片與通氣性片的方法。或者是，以通氣性片受加熱而經軟化的狀態來與多孔片壓接(熱層合)的方法亦可。 The method for forming the filter material blank 2 described above is not particularly limited. For example, it may be arranged between the porous sheet forming the porous layer 2a and the air-permeable sheet forming the base material layer 2b, and hot melt or A method of pressure-sensitive adhesive for pressure-bonding a porous sheet and an air-permeable sheet. Alternatively, a method of pressure-bonding (thermal lamination) the porous sheet with the air-permeable sheet being heated and softened may be used.
當使用如上述般所構成之濾材胚料2來形成過濾器濾材1之際，首先一開始，對濾材胚料2進行打摺加工。具體來說，將濾材胚料2沿著垂直於一方向(長向)的寬度方向在複數位置加以彎曲而形成為皺褶狀。藉此，在濾材胚料2形成有過濾器濾材1中的彎曲部1a與平板部1b。此外，在以下的說明，令形成在濾材胚料2中之彎曲部1a的區域為彎曲預定區域A1。 When the filter medium 1 is formed using the filter medium blank 2 constituted as described above, first, the filter medium blank 2 is subjected to a discount process. Specifically, the filter material blank 2 is formed at a plurality of positions along a width direction perpendicular to one direction (long direction) to form a wrinkle shape. Thereby, the curved part 1a and the flat part 1b in the filter medium 1 are formed in the filter medium blank 2. In addition, in the following description, a region of the bent portion 1a formed in the filter material blank 2 is referred to as a planned bending region A1.
其次，在濾材胚料2的兩面塗佈接著劑而形成珠部3a。具體來說，一邊將經形成皺褶狀的濾材胚料2伸展為打摺加工前的平坦狀態，一邊在濾材胚料2的兩面塗佈接著劑而形成珠部3a。珠部3a係各自地部分地形成在濾材胚料2的兩面。具體來說，形成在濾材胚料2之其中一面側及另一面側的珠部(以下，亦稱為其中一面側珠部及另一面側珠部)3a各自係沿著濾材胚料2的長向間隔形成複數個，並且，沿著濾材胚料2之寬度方向間隔形成複數個(就本實施形態而言，3個)。又，其中一面側珠部3a與另一面側珠部3a係沿著濾材胚料2之一方向(長向)形成在同一直線上。 Next, an adhesive is applied to both sides of the filter material blank 2 to form a bead portion 3a. Specifically, the bead portion 3a is formed by applying an adhesive to both sides of the filter material blank 2 while extending the wrinkled filter material blank 2 to a flat state before the discounting process. The bead portions 3 a are partially formed on both sides of the filter medium blank 2, respectively. Specifically, each of the bead portions (hereinafter, also referred to as the one-side bead portion and the other-side bead portion) 3 a formed on one side and the other side of the filter medium blank 2 is along the length of the filter medium blank 2. A plurality are formed at intervals, and a plurality are formed at intervals along the width direction of the filter material blank 2 (in the present embodiment, three). In addition, one of the side bead portions 3a and the other side bead portion 3a are formed on the same straight line along one direction (long direction) of the filter material blank 2.
又，就珠部3a之形狀而言，未被特別限定，在本實施形態來說，係沿著濾材胚料2之一方向(長向)形成為線狀。又，珠部3a係形成在彎曲預定區域A1之形成有彎曲部1a時成為山側之面的附近。具體來說，珠部3a係以與濾材胚料2中之彎曲預定區域A1呈交叉的方式形成。就本實施形態而言，係構成經形成為線狀之珠部3a在珠部3a略中央部與彎曲預定區域A1交叉的狀態。又，珠部3a係形成在業經 形成彎曲部1a時成為山側的面上。即，以相鄰的彎曲預定區域A1、A1之中，其中一彎曲預定區域A1與其中一面側珠部3a呈交叉，並且另一彎曲預定區域A1與另一面側珠部3a呈交叉的方式來構成。 The shape of the bead portion 3a is not particularly limited. In the present embodiment, it is formed in a linear shape along one direction (long direction) of the filter material blank 2. The bead portion 3a is formed in the vicinity of the surface on the mountain side when the bent portion 1a is formed in the planned bending area A1. Specifically, the bead portion 3 a is formed so as to intersect the predetermined bending area A1 in the filter material blank 2. In the present embodiment, a state where the bead portion 3a formed in a linear shape intersects the planned bending area A1 at a substantially central portion of the bead portion 3a is formed. Moreover, the bead part 3a is formed in the industry When the curved portion 1a is formed, the surface becomes a mountain side. That is, one of the adjacent planned bending regions A1 and A1 intersects with one of the side bead portions 3a, and the other scheduled bending region A1 intersects with the other side bead portion 3a. Make up.
又，就自該珠部3a與彎曲預定區域A1之交叉位置至珠部3a的端部為止的長度而言，未被特別限定，但以珠塗佈長率超過50%之長度為佳。所謂珠塗佈長率，係指自珠部3a與彎曲預定區域A1的交叉位置至珠部3a之一端部為止的長度，相對於相鄰的彎曲預定區域A1、A1間之距離的比例。即，自與彎曲預定區域A1之交叉位置至超過相鄰的彎曲預定區域A1、A1間之區域A2(即，將成為平板部1b之區域A2)(以下，稱為平板部預定區域A2)之中央部之位置形成珠部3a。再者，所謂相鄰的彎曲預定區域A1、A1間之距離，係指將其中之一彎曲預定區域A1之中央部與另一彎曲預定區域A1之中央部沿著濾材胚料2之一方向(長向)連結所得之距離。 The length from the intersection of the bead portion 3a and the intended bending area A1 to the end of the bead portion 3a is not particularly limited, but it is preferable that the bead coating length exceeds 50%. The bead coating elongation refers to the ratio of the length from the intersection of the bead portion 3a and the planned bending area A1 to one end of the bead portion 3a with respect to the distance between adjacent planned bending areas A1 and A1. That is, from an intersection position with the planned bending area A1 to an area A2 exceeding the adjacent planned bending area A1, A1 (that is, the area A2 to be the flat plate portion 1b) (hereinafter, referred to as the flat plate planned area A2) The position of the center part forms the bead part 3a. Furthermore, the so-called distance between the adjacent predetermined bending regions A1 and A1 means that the central portion of one of the predetermined bending regions A1 and the central portion of the other predetermined bending region A1 is along one direction of the filter material blank 2 ( Long direction).
又，其中一面側珠部3a與另一面側珠部3a係以隔著濾材胚料2(具體來說，平板部預定區域A2)相互重疊的方式來形成。更詳細地說，係形成使得分別與相鄰的彎曲預定區域A1、A1交叉之其中一面側珠部3a及另一面側珠部3a中沿著濾材胚料2之一方向(長向)形成在同一直線上者彼此在平板部預定區域A2隔著濾材胚料2相互重疊的狀態。又，其中一面側珠部3a與另一面側珠部3a係以使得位於平板部預定區域A2內側之端部彼此隔著濾材胚料2相互重疊的方 式來形成。又，就在平板部預定區域A2中其中一面側珠部3a與另一面側珠部3a相互重疊的位置而言，未被特別限定，以在沿著濾材胚料2之一方向(長向)之方向的略中央部為佳。 One of the side bead portions 3a and the other side bead portion 3a are formed so as to overlap each other with the filter material blank 2 (specifically, the flat plate portion predetermined area A2) interposed therebetween. In more detail, it is formed such that one of the side bead portions 3a and the other side bead portion 3a intersecting the adjacent predetermined bending areas A1 and A1 is formed along one direction (long direction) of the filter material blank 2 Those on the same straight line overlap each other in the predetermined area A2 of the flat plate portion with the filter material blank 2 interposed therebetween. In addition, one of the side-side bead portions 3a and the other-side bead portion 3a are such that the ends located inside the predetermined area A2 of the flat plate portion overlap each other with the filter material blank 2 interposed therebetween. Formula to form. The position where one of the side bead portions 3a and the other side bead portion 3a overlap each other in the predetermined area A2 of the flat plate portion is not particularly limited so as to be in one direction (long direction) along the filter material blank 2 A slightly central part of the direction is preferred.
就構成珠部3a之接著劑而言，未被特別限定，舉例來說，可舉熱熔。就在濾材胚料2塗佈熱熔之際的溫度而言，雖因熱熔的成分而異，舉例來說，以100℃以上且250℃以下為佳，以140℃以上且230℃以下為更佳。 The adhesive constituting the bead portion 3a is not particularly limited, and for example, hot melt may be mentioned. The temperature at the time of applying the hot melt to the filter material blank 2 is different depending on the hot melt composition. For example, it is preferably 100 ° C or higher and 250 ° C or lower, and 140 ° C or higher and 230 ° C or lower. Better.
然後，如上述般進行，經形成有珠部3a的濾材胚料2係在各彎曲預定區域A1再度彎曲而形成為皺褶狀。藉此，如於圖3(a)顯示般，形成複數的彎曲部1a及複數的平板部1b，並且，在各珠部3a中位於各平板部1b間的部位彼此接合而形成間隔保持部3，而形成過濾器濾材1。因此，於構成珠部3a之接著劑使用熱熔的狀況時，以在軟化至熱熔彼此能夠接合之程度時(開放時間(open time)內)，濾材胚料2再度形成皺褶狀為佳。 Then, as described above, the filter material blank 2 having the bead portions 3a formed thereon is bent again in each of the predetermined bending areas A1 to form a wrinkle shape. Thereby, as shown in FIG. 3 (a), a plurality of curved portions 1 a and a plurality of flat plate portions 1 b are formed, and the positions between the flat plate portions 1 b in each bead portion 3 a are joined to each other to form the space maintaining portion 3. To form a filter medium 1. Therefore, when the hot melt is used for the adhesive constituting the bead portion 3a, the filter material blank 2 is preferably formed into a wrinkled shape when it is softened to the extent that the hot melts can be joined to each other (within the open time). .
再者，在以下的說明中，令相當於過濾器濾材1中濾材胚料2之一方向(長向)之方向為過濾器濾材1之長度L1。又，令相當於過濾器濾材1中濾材胚料2之另一方向(寬度方向)之方向為過濾器濾材1之寬度L2。又，令以濾材胚料2其中一面側為山側所形成的彎曲部1a、與以濾材胚料2之另一面側為山側所形成的彎曲部1a之間的間隔為過濾器濾材1的高度L3。 In the following description, a direction corresponding to one direction (long direction) of the filter medium blank 2 in the filter medium 1 will be the length L1 of the filter medium 1. In addition, a direction corresponding to the other direction (width direction) of the filter medium blank 2 in the filter medium 1 is the width L2 of the filter medium 1. In addition, the interval between the curved portion 1a formed on one side of the filter material blank 2 as the mountain side and the curved portion 1a formed on the other side of the filter material blank 2 as the mountain side is the height L3 of the filter medium 1. .
就如上述所形成之過濾器濾材1而言，分別在濾 材胚料2之其中一面側及另一面側形成間隔保持部3。又，各間隔保持部3係自過濾器濾材1的高度L3方向之其中一側朝向另一側形成為直線狀。又，過濾器濾材1之其中一面側的各間隔保持部3(以下，亦稱為其中一面側間隔保持部3)及另一面側的各間隔保持部3(以下，亦稱為另一面側間隔保持部3)係如於圖3(a)(b)顯示的，沿著過濾器濾材1的長度方向(具體來說，在沿著長度方向的直線上)交互地排列。 As for the filter medium 1 formed as described above, One of the side faces and the other side of the blank material 2 form a space holding portion 3. Each of the interval holding portions 3 is formed in a straight line from one side of the height L3 direction of the filter medium 1 toward the other side. In addition, each of the interval holding portions 3 (hereinafter, also referred to as the one-side interval holding portion 3) on one side of the filter medium 1 and each of the interval holding portions 3 (hereinafter, also referred to as the other-side interval) on the other side The holding portions 3) are alternately arranged along the longitudinal direction of the filter medium 1 (specifically, on a straight line along the longitudinal direction) as shown in Figs. 3 (a) and 3 (b).
然後，其中一面側間隔保持部3與另一面側間隔保持部3，係以隔著平板部1b相互重疊的方式而形成。具體來說，其中一面側間隔保持部3與另一面側間隔保持部3，係以位於平板部1b之中央側之端部彼此隔著平板部1b相互重疊的方式來形成。又，其中一面側間隔保持部3與另一面側間隔保持部3，係以在過濾器濾材1的高度L3方向的略中央部隔著平板部1b會相互重疊的方式來構成。具體來說，係構成相對於一個平板部1b中與一對彎曲部1a、1a的連結位置間的長度，自彎曲部1a與平板部1b之連結位置至各間隔保持部3的一端部為止的長度超過50%的狀態。藉此，構成其中一面側間隔保持部3與另一面側間隔保持部3在過濾器濾材1的高度L3方向的略中央部相互重疊的狀態。 Then, one of the surface-side space retaining portions 3 and the other surface-side space retaining portion 3 are formed so as to overlap each other with the flat plate portion 1b interposed therebetween. Specifically, the one-side space holding portion 3 and the other-side space holding portion 3 are formed so that end portions located on the center side of the flat plate portion 1b overlap each other with the flat plate portion 1b interposed therebetween. In addition, the one-side space holding portion 3 and the other-side space holding portion 3 are configured so as to overlap with each other across the flat plate portion 1b at a substantially central portion in the direction of the height L3 of the filter medium 1. Specifically, the length from the connection position of the curved portion 1a and the flat plate portion 1b to one end portion of each of the space holding portions 3 is formed relative to the length between the connection position of the flat plate portion 1b and the pair of curved portions 1a, 1a. The state that the length exceeds 50%. Thereby, the state where the one surface side space holding | maintenance part 3 and the other surface side space holding | maintenance part 3 overlap each other in the substantially center part of the height L3 direction of the filter medium 1 is comprised.
如上述般，透過其中一面側間隔保持部3與另一面側間隔保持部3相互重疊，而沿著過濾器濾材1的長度方向，形成各間隔保持部3隔著平板部1b相互重疊之部位(以下，亦稱為間隔保持部重合部B1)。如於圖3(a)顯示的，該間隔保持部重合部B1係形成在過濾器濾材1的高度L3方向 的略中央部。又，如於圖3(b)顯示的，間隔保持部重合部B1係在過濾器濾材1的寬度L2方向間隔形成複數(具體來說，3位置)。在過濾器濾材1的寬度L2方向上之各間隔保持部重合部B1間，未形成間隔保持部3，而在平板部1b間形成空間。 As described above, the one-side space holding portion 3 and the other-side space holding portion 3 are overlapped with each other, and along the length direction of the filter medium 1, the portions where the space holding portions 3 overlap each other across the flat plate portion 1b are formed ( Hereinafter, it is also referred to as the interval maintaining portion overlapping portion B1). As shown in FIG. 3 (a), the interval maintaining portion overlapping portion B1 is formed in the direction of the height L3 of the filter medium 1. Slightly central. In addition, as shown in FIG. 3 (b), the interval maintaining portion overlapping portion B1 is formed at plural intervals (specifically, 3 positions) in the width L2 direction of the filter medium 1. Between the space-retaining portion overlapping portions B1 in the width L2 direction of the filter medium 1, the space-retaining portion 3 is not formed, and a space is formed between the flat plate portions 1b.
具有上述結構之過濾器濾材1，係以使得平板部1b相對於被過濾氣體之流向呈交叉的方式來配置使用。藉此，成為被過濾氣體主要地穿透平板部1b。又，這樣的過濾器濾材1，亦可在使外形(從高度L3方向看見之形狀)形成為規定的造形之後，收納在框體(未圖示)中作為過濾器單元使用。就該框體的形狀而言，能夠容納過濾器濾材1之形狀的話，未被特限定，例如可舉：內部尺寸1180mm×1180mm，外部尺寸1220mm×1220mm，厚度75mm的長方體狀或具有規定之內徑的圓形者等。又，就框體的材質而言，未被特別限定，可使用鋁製者。 The filter medium 1 having the above-mentioned structure is arranged and used such that the flat plate portion 1b crosses the flow direction of the filtered gas. As a result, the filtered gas mainly penetrates the flat plate portion 1b. In addition, such a filter medium 1 can be used as a filter unit after being formed into a predetermined shape (shape as viewed from the direction of the height L3) and then housed in a frame (not shown). As for the shape of the frame, the shape of the filter medium 1 can be accommodated, but it is not particularly limited. For example, the internal dimensions are 1180mm × 1180mm, the external dimensions are 1220mm × 1220mm, and the thickness is 75mm. The rounder of the diameter etc. The material of the frame is not particularly limited, and aluminum can be used.
在過濾器濾材1與框體之間，填充有填隙劑。就該填隙劑而言，例如可舉，雙液型環氧樹脂填隙劑(具體來說，以3：1之比例混合漢高公司製Macroplast 8104MC-18與Macroplast UK5400所得者)。又，這樣的過濾器濾材1，可適宜地使用來作為無塵室等的HEPA(高效微粒空氣(High Efficiency Particulate Air))過濾器，及ULPA(超低滲透空氣(Ultra Low Penetration Air))過濾器。 A gap filler is filled between the filter medium 1 and the frame. As the gap filler, for example, a two-liquid epoxy resin gap filler (specifically, a mixture of Macroplast 8104MC-18 manufactured by Henkel and Macroplast UK 5400 in a ratio of 3: 1) can be mentioned. In addition, such a filter medium 1 can be suitably used as a HEPA (High Efficiency Particulate Air) filter such as a clean room and a ULPA (Ultra Low Penetration Air) filter Device.
如以上般，依據根據本發明之過濾器濾材及其之製造方法，在持續施加的壓縮方向之力被除去之際，可防 止沿著壓縮方向之方向上的尺寸變得較壓縮前之尺寸來得短。 As described above, according to the filter medium of the present invention and the method for manufacturing the same, when the force in the direction of compression applied continuously is removed, it is possible to prevent The dimension along the compression direction becomes shorter than the dimension before compression.
即，前述過濾器濾材1係藉著其中一面側間隔保持部3與另一面側間隔保持部3隔著平板部1b相互重疊，因此即使壓縮方向之力經施加在過濾器濾材1之際仍可防止各平板部1b之變形，亦能防止各平板部1b彼此的間隔變狹窄。 That is, the aforementioned filter medium 1 overlaps each other via the flat plate portion 1b with the one-side space holding portion 3 and the other-side space holding portion 3, so that the force in the compression direction can be applied to the filter medium 1 The deformation of each flat plate portion 1b is prevented, and the interval between the flat plate portions 1b can be prevented from becoming narrow.
具體來說，透過其中一面側間隔保持部3與另一面側間隔保持部3隔著平板部1b相互重疊，而防止了其中一面側間隔保持部3與另一面側間隔保持部3沿著壓縮方向接近。藉此，可防止位於其中一面側間隔保持部3與另一面側間隔保持部3間的平板部1b變形，且防止各平板部1b彼此的間隔變狹窄。藉此，可防止沿著在過濾器濾材1之壓縮方向之方向上的尺寸(長度L1方向上的尺寸)變短。 Specifically, one of the side-surface interval holding portions 3 and the other-side surface spacing holding portion 3 overlap with each other via the flat plate portion 1b, thereby preventing one of the side-surface interval holding portions 3 and the other-surface side interval holding portion 3 from being compressed. Close. Thereby, the flat plate portion 1b located between one of the surface-side space holding portions 3 and the other surface-side space holding portion 3 can be prevented from being deformed, and the interval between the flat plate portions 1b can be prevented from being narrowed. Thereby, it is possible to prevent the dimension (the dimension in the length L1 direction) from becoming shorter along the direction in which the filter medium 1 is compressed.
又，平板部1b之中央部(具體來說，連接於一個平板部1b之一對的彎曲部1a、1a間的中央部，或是，彎曲部1a之延伸方向的中央部)剛性係變得較平板部1b的外周部為低。因此，當在過濾器濾材1施加有壓縮方向的力之際，平板部1b的中央部變得易於變形。因此，透過其中一面側間隔保持部3與另一面側間隔保持部3係在平板部1b的中央部隔著平板部1b相互重疊，如上述般有效地防止平板部1b的變形。 In addition, the central portion of the flat plate portion 1b (specifically, the central portion connected between the curved portions 1a and 1a of one pair of flat plate portions 1b or the central portion in the extending direction of the curved portion 1a) becomes rigid. It is lower than the outer peripheral part of the flat plate part 1b. Therefore, when a force in the compression direction is applied to the filter medium 1, the central portion of the flat plate portion 1b is easily deformed. Therefore, the one-side space holding portion 3 and the other-side space holding portion 3 overlap each other at the center of the flat plate portion 1b with the flat plate portion 1b interposed therebetween, and effectively prevent the flat plate portion 1b from deforming as described above.
又，由於相對於一個平板部1b中與一對彎曲部1a、1a之連結位置間的長度，自彎曲部1a與平板部1b之連 結位置至各間隔保持部3的一端部為止之長度係超過50%，而形成其中一面側間隔保持部3與另一面側間隔保持部3在平板部1b的中央部隔著平板部1b相互重疊。又，由於成為其中一面側間隔保持部3及另一面側間隔保持部3係自與彎曲部1a交叉之位置跨至平板部1b的中央部形成的緣故，位於其中一面側間隔保持部3與另一面側間隔保持部3之間的平板部1b剛性提升，而可更加抑制平板部1b的變形。 In addition, since the length between the connecting position of one flat plate portion 1b and a pair of curved portions 1a, 1a, the self-curved portion 1a and the flat plate portion 1b are connected. The length of the knot position to one end of each of the interval holding portions 3 is more than 50%, and one of the surface-side interval holding portions 3 and the other-surface-side interval holding portion 3 are formed to overlap each other at the center of the flat plate portion 1b across the flat plate portion 1b. . In addition, it is formed that one of the surface-side interval holding portions 3 and the other of the surface-side interval holding portions 3 extend from the position intersecting with the curved portion 1a to the center portion of the flat plate portion 1b. The rigidity of the flat plate portion 1b between the one-side space holding portions 3 is increased, and the deformation of the flat plate portion 1b can be more suppressed.
再者，根據本發明之過濾器濾材及其之製造方法，並未被限定於上述實施形態者，在不偏離本發明要旨的範圍，各種的變更係可能的。又，亦可任意地採用上述之複數實施形態的構成及方法等並組合(將根據1個實施形態之構成及方法等應用於根據其他實施形態之構成及方法等亦可)，進一步，當然任意地選擇根據下述之各種的變更例的構成及方法等，並採用於根據上述之實施形態之構成及方法等亦可。 In addition, the filter medium and the method for manufacturing the same according to the present invention are not limited to those described in the above embodiments, and various changes are possible without departing from the scope of the present invention. In addition, the above-mentioned plural embodiments may be arbitrarily combined and combined (the structure and method according to one embodiment may be applied to the structure and method according to other embodiments, etc.), and further, of course, arbitrary It is also possible to select a configuration and a method according to the following various modification examples, and to apply the configuration and the method according to the embodiment described above.
舉例來說，就上述實施形態而言，係形成使得珠部3a與彎曲部1a交叉的狀態，但並未被限定於此，如於圖4(a)顯示的，亦可僅由形成間隔保持部3’之部分來形成珠部3a’。或者，如於圖4(b)顯示的，亦可僅以構成過濾器濾材1之間隔保持部重合部B1的部分來構成珠部3a”及間隔保持部3”。 For example, in the above embodiment, the state where the bead portion 3a and the curved portion 1a intersect is formed, but it is not limited to this. As shown in FIG. Part 3 'to form the bead part 3a'. Alternatively, as shown in FIG. 4 (b), the bead portion 3 a ″ and the interval holding portion 3 ″ may be constituted only by a portion constituting the interval holding portion overlapping portion B1 of the filter medium 1.
又，就上述實施形態而言，間隔保持部3係沿著彎曲部1a間隔形成有複數個，但並未限定於此，亦可沿著彎曲部1a整體地形成。 Moreover, in the said embodiment, although the space | interval holding | maintenance part 3 was formed in multiple intervals along the curved part 1a, it is not limited to this, You may form integrally along the curved part 1a.
又，就上述實施形態而言，濾材胚料2係沿著寬度方向在複數位置加以彎曲，但並未限定於此，亦可將形成為薄片體狀之濾材胚料呈放射狀在複數位置處加以彎曲而形成圓錐狀的過濾器濾材。 In the above embodiment, the filter material blank 2 is bent at a plurality of positions along the width direction, but it is not limited to this. The filter material blank formed into a thin sheet shape may be radiated at a plurality of positions. It is bent to form a conical filter medium.
又，就上述實施形態而言，使用由多孔層2a與基材層2b構成之濾材胚料2來構成過濾器濾材1，但並未被限定於此，舉例來說，亦可使用僅由多孔層2a所形成之濾材胚料。又，就上述實施形態而言，使用複數的多孔層2a來形成濾材胚料2，但並未被限定於此，亦可由單一的多孔層2a與基材層2b來形成濾材胚料。 In the above embodiment, the filter medium 1 is constituted by using the filter medium blank 2 composed of the porous layer 2a and the base material layer 2b. However, the filter medium 1 is not limited to this. For example, a porous material may be used. The filter material blank formed by the layer 2a. In the embodiment described above, the filter material preform 2 is formed using a plurality of porous layers 2a, but it is not limited to this. The filter material preform may be formed from a single porous layer 2a and a base material layer 2b.
又，就上述實施形態而言，其中一面側間隔保持部3(其中一面側珠部3a)與另一面側間隔保持部3(另一面側珠部3a)，係以位於平板部1b(平板部預定區域A2)之中央部的端部彼此相互重疊的方式所構成，但並未被限定於此，舉例來說，亦可以使得位於平板部1b(平板部預定區域A2)內側之部位整體彼此相互重疊的方式來構成。 In the above-mentioned embodiment, one of the surface-side interval holding portions 3 (one of the surface-side bead portions 3a) and the other-surface-side interval holding portion 3 (the other-surface-side bead portions 3a) are located on the flat plate portion 1b (flat plate portion). The end portions of the central portion of the predetermined area A2) are configured to overlap each other, but it is not limited to this. For example, the portions located inside the flat plate portion 1b (the flat plate predetermined area A2) may be made to mutually overlap each other as a whole. Constructed in an overlapping manner.
又，就上述實施形態而言，其中一面側間隔保持部3與另一面側間隔保持部3係以在平板部1b的高度L3方向的略中央部相互重疊的方式來構成，但並未被限定於此，亦可構成其中一面側間隔保持部3與另一面側間隔保持部3在自平板部1b的中央部向平板部1b的外周側偏離的位置相互重疊的狀態。 Moreover, in the said embodiment, although the one surface side space holding | maintenance part 3 and the other surface side space holding | maintenance part 3 are comprised so that it may overlap each other in the substantially center part of the height L3 direction of the flat plate part 1b, it is not limited to this. Here, a state in which one of the surface-side space retaining portions 3 and the other surface-side space retaining portion 3 are overlapped with each other at positions deviated from the central portion of the flat plate portion 1b toward the outer peripheral side of the flat plate portion 1b may be configured.
以下，針對本發明的實施例進行說明。 Hereinafter, examples of the present invention will be described.
<過濾器濾材的製作> <Production of filter media>
1.多孔片 Porous sheet
就多孔片而言係使用PTFE片。具體來說，相對於PTFE細粉(大金工業股份有限公司製商品名：F104)100重量份，添加液體潤滑劑(正癸烷)19重量份來形成糊狀混合物。然後，該混合物經預成形之後，藉由擠出成形，形成一方向長向之平板狀的成形體。其後，將該平板狀的成形體軋延成為0.2mm的厚度。然後，在乾燥爐內以150℃加熱該成形體，自平板狀的成形體除去液體潤滑劑。其後，將平板狀的成形體在280℃的環境下沿著長向拉伸15倍，並且，在100℃的環境下沿著垂直於長向之寬度方向拉伸15倍，而形成PTFE片。 For the porous sheet, a PTFE sheet was used. Specifically, 19 parts by weight of a liquid lubricant (n-decane) was added to 100 parts by weight of PTFE fine powder (trade name: F104, manufactured by Daikin Industry Co., Ltd.) to form a paste-like mixture. Then, after the mixture is preformed, it is extruded to form a flat plate-shaped formed body in one direction. Thereafter, the flat plate-shaped formed body was rolled to a thickness of 0.2 mm. Then, the formed body was heated at 150 ° C. in a drying furnace, and the liquid lubricant was removed from the flat shaped body. Thereafter, the flat-shaped molded body was stretched 15 times in the longitudinal direction under an environment of 280 ° C, and 15 times in the width direction perpendicular to the longitudinal direction under an environment of 100 ° C to form a PTFE sheet. .
2.通氣性片 2. Ventilating tablets
就通氣性片而言，使用形成一方向為長邊的PET/PE芯鞘不織布(龍尼吉可有限公司(Unitika Limited.)製 商品名：T1003WDO)。 For the breathable sheet, a PET / PE core-sheath nonwoven fabric (trade name: T1003WDO, manufactured by Unitika Limited) was used to form a long side in one direction.
3.濾材胚料的製作 3. Fabrication of filter material
以使得前述多孔片與通氣性片之長向呈略平行的方式，一邊在通氣性片的兩面積層多孔片，一邊輸送至一對的軋輥構件(前述熱軋輥與前述支持軋輥)之間。藉此，將多孔片與通氣性片熱封來貼合，製作如於圖2顯示般的濾材胚料2。再者，就各軋輥構件而言，使用外徑為200mm者。又，各片材之輸送速度係10m/min，而貼合時的壓力係0.8MPa。 The porous sheet and the air-permeable sheet are made to be slightly parallel in lengthwise direction, and are conveyed between a pair of roll members (the hot roll and the support roll) while the porous sheet is layered on two areas of the air-permeable sheet. Thereby, the porous sheet and the air-permeable sheet were heat-sealed and bonded together to produce a filter material blank 2 as shown in FIG. 2. In addition, for each roll member, a 200 mm outer diameter was used. The conveying speed of each sheet was 10 m / min, and the pressure at the time of bonding was 0.8 MPa.
4.打摺加工 4. Discount processing
所獲得之濾材胚料2經打摺加工後，如於圖2顯示地，形成珠部3a。然後，製作如於圖1及3顯示般的過濾器濾材1。就形成珠部3a之接著劑(熱熔)而言，使用漢高公司製的Macromelt 6202(聚醯胺系)，或是漢高公司製的Technomelt Q3115(EVA系)。 After the obtained filter material blank 2 is subjected to a discount process, as shown in FIG. 2, a bead portion 3 a is formed. Then, a filter medium 1 as shown in FIGS. 1 and 3 was produced. As the adhesive (hot melt) for forming the bead portion 3a, Macromelt 6202 (polyamine-based) manufactured by Henkel Corporation or Technomelt Q3115 (EVA-based) manufactured by Henkel Corporation was used.
<實施例1> <Example 1>
=過濾器濾材= = Filter media =
利用上述方法製作過濾器濾材1，使得長度L1係1298mm，寬度L2係1180mm且高度L3係35mm。再者，形成珠部3a之接著劑(熱熔)及珠塗佈長率，係顯示於下述表1。 The filter medium 1 was manufactured by the above method so that the length L1 was 1298 mm, the width L2 was 1180 mm, and the height L3 was 35 mm. The adhesive (hot melt) and bead coating elongation for forming the bead portion 3a are shown in Table 1 below.
=收縮率的測定= = Determination of shrinkage rate =
將所獲得之過濾器濾材1配置為平面狀，使得過濾器濾材1的平板部1b呈略水平(換言之，使得過濾器濾材1的長度L1方向呈略垂直)。然後，自上方沿著長度L1方向在過濾器濾材1施加3kg的荷重。 The obtained filter medium 1 is arranged in a flat shape so that the flat plate portion 1b of the filter medium 1 is slightly horizontal (in other words, the length L1 direction of the filter medium 1 is slightly vertical). Then, a load of 3 kg was applied to the filter medium 1 from above along the direction of the length L1.
然後，測定經施加荷重後的過濾器濾材1的長度L1。從所獲得之測定結果及下述(2)式來算出收縮率。所算出之收縮率係顯示於下述表1。 Then, the length L1 of the filter medium 1 after a load is measured is measured. From the obtained measurement results and the following formula (2), a shrinkage ratio was calculated. The calculated shrinkage is shown in Table 1 below.
收縮率(%)={(荷重前之過濾器濾材的長度-荷重後之過濾器濾材的長度)/荷重前之過濾器濾材的長度}×100…(2) Shrinkage (%) = {(length of filter medium before load-length of filter medium after load) / length of filter medium before load} × 100 ... (2)
=過濾器單元的密封性= = Tightness of the filter unit =
所獲得之過濾器濾材1容納於框體來製作過濾器單元。具體來說，過濾器濾材1係容納在內部尺寸1180mm×1180mm，外部尺寸1220mm×1220mm，厚度75mm的鋁製框 體。然後，在過濾器濾材1與框體之間填充填隙劑來製作過濾器單元。就填隙劑而言，係使用雙液型環氧樹脂填隙劑(具體來說，以3：1之比例混合漢高公司製Macroplast 8104MC-18與Macroplast UK5400所得者)。 The obtained filter medium 1 was housed in a frame to make a filter unit. Specifically, the filter medium 1 is housed in an aluminum frame with an internal dimension of 1180mm × 1180mm, an external dimension of 1220mm × 1220mm, and a thickness of 75mm. body. Then, a gap filler is filled between the filter medium 1 and the frame to produce a filter unit. As for the interstitial agent, a two-liquid type epoxy interstitial agent is used (specifically, a mixture of Macroplast 8104MC-18 manufactured by Henkel Corporation and Macroplast UK 5400 in a ratio of 3: 1).
製作過濾器單元之際，將在過濾器濾材1與框體之間未形成有間隙的狀況令為「○」，而將形成有間隙的狀況令為「×」，來評價過濾器單元的密封性。評價結果係顯示於下述表1。 When the filter unit was manufactured, the condition where no gap was formed between the filter medium 1 and the frame was set to "○", and the condition where the gap was formed was set to "x" to evaluate the seal of the filter unit. Sex. The evaluation results are shown in Table 1 below.
<實施例2~6，比較例1及2> <Examples 2 to 6, Comparative Examples 1 and 2>
就形成珠部3a之接著劑(熱熔)而言，係使用顯示於下述表1者，並且，除珠塗佈長率係如下述表1顯示般以外，以與實施例1相同的條件，製作過濾器濾材1及過濾器單元，測定收縮率。就收縮率及過濾器單元之密封性的評價，顯示於下述表1。 As for the adhesive (hot melt) for forming the bead portion 3a, those shown in Table 1 below were used, and the same conditions as in Example 1 were used except that the bead coating length was as shown in Table 1 below. , A filter medium 1 and a filter unit were produced, and the shrinkage was measured. The evaluation of the shrinkage rate and the sealability of the filter unit are shown in Table 1 below.
<總結> <Summary>
依據各實施例與各比較例的比較，確認相較於各比較例，各實施例的收縮率變得低。這是因為如各實施例般珠塗佈長率為50%以上，形成其中一面側間隔保持部3與另一面側間隔保持部3在平板部1b的略中央部隔著平板部1b相互重疊的狀態，而沿著過濾器濾材1之長度L1方向來形成間隔保持部重合部B1的緣故。藉此，在過濾器濾材1施加有荷重(壓縮方向的力)之際，亦因為藉著間隔保持部重合部B1支撐這樣的荷重，而可抑制在平板部1b產生變形。因此，得以維持平板部1b彼此的間隔，而抑制了過濾器濾材1的收縮。 Based on the comparison between each example and each comparative example, it was confirmed that the shrinkage rate of each example was lower than that of each comparative example. This is because the bead coating elongation is 50% or more as in each example, and one of the side surface holding portions 3 and the other side surface holding portions 3 are formed to overlap each other at a substantially central portion of the flat plate portion 1b across the flat plate portion 1b. State, and the interval holding portion overlap portion B1 is formed along the length L1 of the filter medium 1. With this, even when a load (force in the compression direction) is applied to the filter medium 1, such a load is supported by the interval maintaining portion overlapping portion B1, and deformation of the flat plate portion 1 b can be suppressed. Therefore, the distance between the flat plate portions 1b can be maintained, and the shrinkage of the filter medium 1 is suppressed.
即，確認透過以使得其中一面側間隔保持部3與另一面側間隔保持部3係隔著平板部1b相互重疊的方式形成，可抑 制過濾器濾材1的收縮。 That is, it is confirmed that the transmission is formed such that one of the surface-side interval holding portions 3 and the other surface-side interval holding portion 3 overlap each other with the flat plate portion 1b interposed therebetween. Shrinkage of the filter medium 1.
1‧‧‧過濾器濾材 1‧‧‧ filter media
1a‧‧‧彎曲部 1a‧‧‧Bend
1b‧‧‧平板部 1b‧‧‧ Flat
2‧‧‧濾材胚料 2‧‧‧ filter material blank
3‧‧‧間隔保持部 3‧‧‧ interval maintaining unit
3a‧‧‧珠部 3a‧‧‧Bead
B1‧‧‧間隔保持部重合部 B1‧‧‧ Interval maintaining section overlap section
L1‧‧‧過濾器濾材1之長度 L1‧‧‧ length of filter media 1
L2‧‧‧過濾器濾材1之寬度 L2‧‧‧Filter Width of Filter Media 1
L3‧‧‧過濾器濾材1的高度 L3‧‧‧ height of filter media 1
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| JP2012224347A JP6105891B2 (en) | 2012-10-09 | 2012-10-09 | FILTER FILTER AND METHOD FOR PRODUCING FILTER FILTER |
| JP2012-224347 | 2012-10-09 |
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| JP6209393B2 (en) * | 2013-08-21 | 2017-10-04 | 日東電工株式会社 | Filter media |
| DE102015002498A1 (en) * | 2015-02-27 | 2016-09-01 | Dürr Systems GmbH | Separator for separating particles |
| CN110448973B (en) * | 2019-08-07 | 2021-09-17 | 九江七所精密机电科技有限公司 | Conical cylinder type air filter element and manufacturing process thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050139544A1 (en) * | 2003-12-30 | 2005-06-30 | Kyung-Ju Choi | Method of forming spaced pleated filter material and product of same |
| US20120073254A1 (en) * | 2009-05-29 | 2012-03-29 | Nippon Muki Co., Ltd | Filter element and double-pleated air filter using the same |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2138412C3 (en) * | 1971-07-28 | 1982-12-30 | Delbag-Luftfilter Gmbh, 1000 Berlin | HEPA filter pack for gas cleaning made from zigzag folded filter paper |
| JP3138848B2 (en) * | 1994-02-15 | 2001-02-26 | 日本バイリーン株式会社 | Unit type filter |
| JPH11253719A (en) * | 1998-03-10 | 1999-09-21 | Nitto Denko Corp | Filter sheet for air filter, manufacture of filter sheet, air-pereable supporting material to be used for same filter sheet, and air filter |
| JP2000107539A (en) * | 1998-10-01 | 2000-04-18 | Daikin Ind Ltd | Air filter pack and air filter |
| JP4182332B2 (en) * | 2002-08-29 | 2008-11-19 | 日本バイリーン株式会社 | FILTER MATERIAL, ITS MANUFACTURING METHOD, AND FILTER DEVICE WITH FILTER MATERIAL |
| JP2005246233A (en) * | 2004-03-04 | 2005-09-15 | Nitto Denko Corp | Air filter medium for cleaner, and air filter unit for cleaner using the same |
| JP2007054718A (en) * | 2005-08-23 | 2007-03-08 | Nippon Muki Co Ltd | Manufacturing method of pack for air filter, and air filter |
| CN102068924B (en) * | 2010-12-22 | 2013-12-18 | 中国科学院长春应用化学研究所 | Polytetrafluoroethylene composite membrane and preparation method thereof |
| CN102527158A (en) * | 2010-12-30 | 2012-07-04 | 东丽纤维研究所（中国）有限公司 | High-temperature resistant filtering material |
| CN202270399U (en) * | 2011-09-30 | 2012-06-13 | 孙世博 | Hinge filtering component and filtering system |
| JP6105891B2 (en) * | 2012-10-09 | 2017-03-29 | 日東電工株式会社 | FILTER FILTER AND METHOD FOR PRODUCING FILTER FILTER |
| JP6215722B2 (en) * | 2014-01-29 | 2017-10-18 | 株式会社渡部製鋼所 | Filter unit |
-
2012
- 2012-10-09 JP JP2012224347A patent/JP6105891B2/en active Active
-
2013
- 2013-09-17 TW TW102133633A patent/TWI617341B/en active
- 2013-10-09 CN CN201710720063.8A patent/CN107497205A/en active Pending
- 2013-10-09 CN CN201320621216.0U patent/CN203816400U/en not_active Expired - Lifetime
- 2013-10-09 CN CN201310467674.8A patent/CN103706199A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050139544A1 (en) * | 2003-12-30 | 2005-06-30 | Kyung-Ju Choi | Method of forming spaced pleated filter material and product of same |
| US20120073254A1 (en) * | 2009-05-29 | 2012-03-29 | Nippon Muki Co., Ltd | Filter element and double-pleated air filter using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201420167A (en) | 2014-06-01 |
| CN103706199A (en) | 2014-04-09 |
| CN107497205A (en) | 2017-12-22 |
| CN203816400U (en) | 2014-09-10 |
| JP2014076414A (en) | 2014-05-01 |
| JP6105891B2 (en) | 2017-03-29 |
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