JP3118646B2 - Method for producing zigzag air filter medium - Google Patents
Method for producing zigzag air filter mediumInfo
- Publication number
- JP3118646B2 JP3118646B2 JP03066515A JP6651591A JP3118646B2 JP 3118646 B2 JP3118646 B2 JP 3118646B2 JP 03066515 A JP03066515 A JP 03066515A JP 6651591 A JP6651591 A JP 6651591A JP 3118646 B2 JP3118646 B2 JP 3118646B2
- Authority
- JP
- Japan
- Prior art keywords
- filter medium
- zigzag
- adhesive layer
- air filter
- adhesive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Description
【０００１】[0001]
【産業状の利用分野】本発明は、ジグザグ状エアフィル
タ濾材の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a zigzag air filter medium.
【０００２】[0002]
【従来の技術】従来、ジグザグ状エアフィルタ濾材の製
造方法としては、特公昭54-30144号公報に開示されてい
るような、図７に示す如く、少くとも濾材ａの両側縁の
両面の夫々に接着剤を一定の厚さに塗布して連続線状の
接着剤層ｂ，ｃを形成した後、接着剤層ｂまたはｃが互
いに当接するように一定間隔でジグザグ状に折り畳んだ
後、接着剤層ｂ，ｃを固化して濾材ａが一定間隔で並列
状態となるようにする方法が提案されている。2. Description of the Related Art Conventionally, as a method for manufacturing a zigzag air filter medium, as shown in FIG. 7, as shown in FIG. After the adhesive is applied to a certain thickness to form continuous adhesive layers b and c, the adhesive layers b or c are folded in a zigzag manner at regular intervals so that the adhesive layers b or c come into contact with each other, and then bonded. A method has been proposed in which the agent layers b and c are solidified so that the filter media a are arranged in parallel at regular intervals.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、前記製
造方法の場合は得られたジグザグ状エアフィルタ濾材は
空気を通過させる濾材ａが一定間隔で並列状態に形成さ
れているため、図８に示すようにエアフィルタ内を通過
する気流ｄ（矢印方向）に対して並行しているので、濾
材ａの一方ｅから入った空気は始めは濾材ａに対して平
行状態の気流ｄとなるが、濾材ａの他方ｆから排出され
るにはどうしても気流ｄ方向が濾材ａの途中で濾材ａに
対して直交するように横断するため、流れにくなって通
過させる空気の圧を高くしなければ所定の気流圧が得ら
れないから圧損が高くなるという問題がある。そこで濾
材のジグザグ形状を先端が鋭利な形状の連続山形状、或
いはノコギリ刃状に形成すればよいが、濾材をこのよう
な形状のジグザグ状態に形成することが困難であった。
本発明は、かかる問題点を解消したジグザグ状エアフィ
ルタ濾材の製造方法を提供することを目的とする。However, in the case of the above-described manufacturing method, the zigzag-shaped air filter medium obtained has filter media a through which air passes, which are formed in parallel at regular intervals. Is parallel to the air flow d (in the direction of the arrow) passing through the air filter, the air entering from one side e of the filter medium a initially becomes an air stream d parallel to the filter medium a. In order to be discharged from the other side f, the direction of the air flow d inevitably traverses in the middle of the filter medium a so as to be orthogonal to the filter medium a. There is a problem that pressure loss is increased because pressure cannot be obtained. Therefore, the zigzag shape of the filter medium may be formed into a continuous mountain shape having a sharp tip or a sawtooth blade shape, but it has been difficult to form the filter medium into such a zigzag state.
An object of the present invention is to provide a method for manufacturing a zigzag air filter medium that solves such a problem.
【０００４】[0004]
【課題を解決するための手段】本発明のジグザグ状エア
フィルタ濾材の製造方法は、不織布から成る濾材をジグ
ザグ状に折り畳んだジグザグ状エアフィルタ濾材の製造
方法において、少くとも濾材シートの両側縁の両面に夫
々接着剤を塗布して接着剤層を形成した後、該濾材シー
トを、該接着剤が未だ軟化状態にある間に、互いに刺違
えに進退自在であって先端が互いに対向せる先端部が鋭
角状の三角形押型の両押型間に挟み込み圧接状態にて挟
持することによって、ジグザグ状に折り畳むと同時に、
接着剤層を固化して連続山形状、或いはノコギリ状のジ
グザグ状に形成することを特徴とする。Method of manufacturing a zigzag shaped air filter medium of the present invention In order to achieve the above object, according to the filter medium consisting of a nonwoven method of manufacturing a zigzag shaped air filter medium folded in a zigzag shape, at least the side edges of the filter media sheets After applying an adhesive to each side to form an adhesive layer, the filter medium sheet is
Clamping the door, while the adhesive is still in a softened state at Write-pressure contact nip tip causes opposing tip a retractably in Sashichigae each other between both pressing die of acute triangular pressing die
By lifting, the same time when folded in a zigzag shape,
Continuous mountain shape by solidifying the adhesive layer, or and forming a serrated zigzag.
【０００５】[0005]
【作用】少くとも濾材の両側縁の両面に夫々接着剤を塗
布して接着剤層を形成し、これを互いに刺違えに進退自
在であって先端が互いに対向せる先端部が鋭角状の三角
形押型の両押型間に挟み込んで濾材を圧接してジグザグ
状に折り畳むと濾材は連続山形状、或いはノコギリ刃状
に折り曲げられる。この際、軟化状態にあった（未だ固
化していなかった）接着剤層は、所定の形状に型押しさ
れた状態で三角形押型と接することによって冷やされ固
化するので、濾材は連続山形状、或いはノコギリ刃状に
折り曲げられた形状に維持される。[Advantage] At least an adhesive is applied to both sides of both sides of the filter medium to form an adhesive layer, which can be advanced and retracted by piercing each other, and the tips are opposed to each other. When the filter medium is pressed between the two pressing dies and pressed and folded in a zigzag shape, the filter medium is bent into a continuous mountain shape or a saw blade shape. At this time, it was in a softened state (still
The adhesive layer (which had not been formed) is embossed into a predetermined shape.
In contact with the triangular stamping
Because of filter medium is continuously maintained mountain shape, or a shape bent in sawtooth.
【０００６】[0006]
【実施例】図１ないし図４は本発明の製造方法の１実施
例を示すもので、図中、１はガラス繊維、ポリエステ
ル、ポリプロピレン等の不織布から成る濾材、２，３は
濾材１の両面に施すＥＶＡ樹脂、ポリアミド樹脂、ポリ
エステル樹脂等の接着剤層を示す。尚、接着剤は製造工
程中に固化させる点を考慮するとポリエステル樹脂のよ
うなホットメルトタイプが最も適している。先ず、図２
のようにシート状の濾材１の両側縁の両面に夫々接着剤
を線状に塗布し、接着剤層２，３を形成する。続いて、
図１のように先端部４が鋭角状の三角形押型５の１対
を、その先端部４が互いに対向させると共に、かつ互い
に刺違えに進退自在に配設した１対の三角形押型５を図
１の仮想線のように退入させた状態で両押型５間に前記
接着剤層２，３が軟化した状態の濾材１シートを供給し
た後、両押型５を図１の実線のように進出させて濾材１
シートを両押型５間に挟み込んだ状態に挟持し、常温で
該接着剤層２，３を固化させ、図３のように濾材１を頂
点６が鋭角の連続山形状のジグザグ状に形成すると共
に、各ジグザグの頂点６の外方側の接着剤層２，３の厚
さを肉厚に、各頂点６の内方側の接着剤層２，３の厚さ
を肉薄に形成してジグザグ状エアフィルタ濾材７を作成
した。尚、濾材１を三角形押型５により折り曲げる際、
該三角形押型５の先端部４により軟化状態の接着剤層
２，３が押し潰されると共に、濾材１に押圧が掛かって
折り込まれて連続した山形状に形成される。また、この
場合、接着剤層２，３を濾材１の両面に塗布後は該接着
剤層２，３が固化しない間に濾材１を折り畳むようにす
ることが好ましい。前記方法で得られた頂点６が鋭角の
連続山形状のジグザグ状エアフィルタ濾材７は固化され
た接着剤層２，３により頂点６が鋭角状に保持されてい
るので、その形状は連続山形、或いはノコギリ刃状態と
なっており、図４に示すようにエアフィルタ内を通過す
る気流８（矢印方向）に対して斜めに交差するようにな
っているから、濾材１の一方９から入った空気は濾材１
に遮られることなく、濾材１を通過し、濾材１の他方１
０より容易に排出されるため、濾材１の圧損を低く維持
することが出来る。1 to 4 show one embodiment of the production method of the present invention. In the drawings, reference numeral 1 denotes a filter medium made of a nonwoven fabric such as glass fiber, polyester, or polypropylene; 1 shows an adhesive layer of EVA resin, polyamide resin, polyester resin or the like to be applied to the present invention. Considering that the adhesive is solidified during the manufacturing process, a hot melt type such as polyester resin is most suitable. First, FIG.
The adhesive is applied linearly to both sides of both sides of the sheet-like filter medium 1 as described above to form the adhesive layers 2 and 3. continue,
As shown in FIG. 1, a pair of triangular dies 5 each having an acute angled tip portion 4 and a pair of triangular dies 5 whose tip portions 4 are opposed to each other and which are arranged to be able to advance and retreat with each other are shown in FIG. After supplying the filter medium 1 sheet with the adhesive layers 2 and 3 softened between the two pressing dies 5 in the state of being retracted as shown by the imaginary line, the two pressing dies 5 are advanced as shown by the solid line in FIG. Filter media 1
Pinched state sandwiched sheet between both pressing die 5, the adhesive layer 2 is solidified at normal temperature, the apex 6 of filter medium 1 as shown in FIG. 3 forms an acute angle of a continuous chevron-shaped zigzag At the same time, the thickness of the adhesive layers 2 and 3 on the outer side of the vertex 6 of each zigzag is formed to be thick, and the thickness of the adhesive layers 2 and 3 on the inner side of each vertex 6 is formed to be thin. An air filter medium 7 was prepared. When the filter medium 1 is bent by the triangular pressing mold 5,
The adhesive layers 2 and 3 in a softened state are crushed by the tip 4 of the triangular pressing die 5, and the filter medium 1 is pressed and folded to form a continuous mountain shape. In this case, after the adhesive layers 2 and 3 are applied to both surfaces of the filter medium 1, it is preferable that the filter medium 1 be folded while the adhesive layers 2 and 3 do not solidify. Since the zigzag air filter medium 7 having the continuous mountain shape having the acute angle at the vertex 6 obtained by the above method is held at the acute angle by the solidified adhesive layers 2 and 3, the shape is a continuous mountain shape. Alternatively, as shown in FIG. 4, the air enters the air filter 8 obliquely with the air flow 8 (in the direction of the arrow) as shown in FIG. Is filter media 1
Pass through the filter medium 1 without being blocked by
Since it is more easily discharged than zero, the pressure loss of the filter medium 1 can be kept low.
【０００７】実施例 濾材１：ガラス繊維、厚さ０．４ｍｍ 寸法６１０×６１０×６８ｍｍ 接着剤２，３：ポリエステル樹脂 接着剤層：幅１．５ｍｍ、厚さ０．５ｍｍ パック寸法：６０ｍｍ 山数：１５５山 ジグザグ形状：底辺寸法５ｍｍ、高さ６０ｍｍの三角形 濾材のジグザグ形状の形成方法：本発明法による。前記
サイズに形成された濾材の一方から他方に対して風量５
０ｍ3／ｍｉｎの気流を通過させ、比色法９０％時にお
ける圧損を測定したところ、圧損は１４．５ｍｍＡｑで
あった。 比較例 濾材１：ガラス繊維、厚さ０．４ｍｍ 寸法６１０×６１０×６８ｍｍ 接着剤２，３：ポリエステル樹脂 接着剤層：幅１．５ｍｍ、厚さ１．０ｍｍ パック寸法：６０ｍｍ 山数：１５５山 ジグザグ形状：濾材間隔５ｍｍの蛇行形状 濾材のジグザグ形状の形成方法：従来法による。そして
前記サイズに形成された濾材に対して前記実施例と同様
の条件で圧損を測定したところ、圧損は１６．５ｍｍＡ
ｑであった。このように本発明方法により得られたジグ
ザグ状エアフィルタ濾材７は、従来法により得られた濾
材に比して圧損が低いことが確認された。Examples Filter medium 1: glass fiber, thickness 0.4 mm, dimensions 610 × 610 × 68 mm Adhesive 2, 3: polyester resin Adhesive layer: width 1.5 mm, thickness 0.5 mm Pack size: 60 mm : 155 mountains Zigzag shape: Triangular filter having a bottom dimension of 5 mm and a height of 60 mm Method for forming a zigzag shape of a filter medium: According to the method of the present invention. Air flow 5 from one side of the filter media formed to the size to the other
It was passed through an air flow of 0 m 3 / min, and the pressure loss was measured at a colorimetric method of 90%. The pressure loss was 14.5 mmAq. Comparative Example Filter medium 1: Glass fiber, thickness 0.4 mm Dimension 610 × 610 × 68 mm Adhesive 2, 3: Polyester resin Adhesive layer: 1.5 mm width, 1.0 mm thickness Pack size: 60 mm Number of mountains: 155 mountains Zigzag shape: meandering shape with a filter material interval of 5 mm Method for forming zigzag shape of filter material: by a conventional method. When the pressure loss of the filter medium formed in the above-mentioned size was measured under the same conditions as in the above example, the pressure loss was 16.5 mmA.
q. As described above, it was confirmed that the zigzag air filter medium 7 obtained by the method of the present invention has a lower pressure loss than the filter medium obtained by the conventional method.
【０００８】前記図示例では三角形押型５を夫々１個の
１対としたが、各三角形押型を複数の押型５を連結して
ノコギリ刃、或いは連続山形状態に形成したものとし、
両三角形押型を進出させ、互いに刺違えさせた際、両三
角形押型の先端部４が互いに相手の連続山形、或いはノ
コギリ刃の谷部分に近接し得るようにしてもよい。In the illustrated example, each of the triangular pressing dies 5 is one pair, but each triangular pressing die is formed by connecting a plurality of pressing dies 5 to form a saw blade or a continuous chevron.
When the two triangular pressing dies are advanced and pierced with each other, the tips 4 of the two triangular pressing dies may be close to each other's continuous mountain shape or the valley portion of the saw blade.
【０００９】図５は濾材１１に形成する接着剤層の他の
実施例を示す。図２実施例では濾材１の両面に形成する
接着剤層２，３の厚さを均一厚さに形成したが、図５実
施例では接着剤層の形成を濾材の一方の面では一定間隔
で厚さが中央部分で厚く、その両端では最も薄くなる接
着剤層に形成すると共に、一方の面の中央部分に対応す
る他方の面の中央部分では最も薄く、その両端では最も
厚くなる接着剤層に形成するように塗布したものであ
り、図示例では、濾材１１の両面に施す接着剤層１２，
１３の形状を濾材１１を押型により折り曲げ形成される
位置、即ち中央部分１４でジグザグの頂点１６の外側方
になる面で接着剤層１２，１３の厚さＴ1を最も厚く、
ジグザグの頂点１６の内側方になる面で接着剤層１２，
１３の厚さＴ2 を最も薄くなるように連続山形状に形成
したものである。かくするときは、濾材１１の両面には
互いに平行状態に連続山形状に形成された接着剤層１
２，１３が形成されているから濾材１１を三角形押型で
ジグザグ状に折り曲げる際、接着剤層１２，１３の厚さ
が最も薄い個所が折り曲げられる内側となるから、三角
形押型の先端部を当接させての濾材の折り曲げが容易に
かつ確実に行え得る。FIG. 5 shows another embodiment of the adhesive layer formed on the filter medium 11. In the embodiment shown in FIG. 2, the adhesive layers 2 and 3 formed on both sides of the filter medium 1 are formed to have a uniform thickness, but in the embodiment shown in FIG. 5, the adhesive layers are formed at regular intervals on one side of the filter medium. thicker thickness at the central portion, with at its both ends is formed in thinnest adhesive layer, one of the most thin in the central portion of the other surface corresponding to the central portion of the surface at its both ends thickest of that adhesive is obtained by coating the fabric to form a layer, in the illustrated example, the adhesive layer 12 applied to the both surfaces of the filter medium 11,
The thickness T1 of the adhesive layers 12, 13 is the largest at the position where the shape of the filter material 13 is formed by bending the filter medium 11 by the pressing die, that is, at the surface outside the zigzag apex 16 at the central portion 14,
The adhesive layer 12 on the surface inward of the zigzag vertex 16
13 is formed in a continuous mountain shape so that the thickness T2 becomes the thinnest. At this time, the adhesive layer 1 formed in a continuous mountain shape in parallel with each other on both surfaces of the filter medium 11.
When the filter medium 11 is bent in a zigzag shape with a triangular press, since the filter media 2 and 13 are formed, the thinnest portions of the adhesive layers 12 and 13 are on the inside to be bent. It is not a filter medium folded can easily and reliably performed.
【００１０】前記図２および図５実施例では濾材１、１
１の両面に塗布する接着剤層２，３、１２，１３の位置
を濾材１、１１の両側縁のみとしたが、本発明ではこれ
に限定されるものではなく、図６に示すように濾材１の
幅、厚さに対応させてその両面の両側縁以外に濾材１の
幅に平行する複数本の線状接着剤層２，３を塗布するよ
うにしてもよい。In the embodiment shown in FIGS. 2 and 5, the filter media 1, 1
The positions of the adhesive layers 2, 3, 12, 13 applied to both surfaces of the filter material 1 are only on both side edges of the filter materials 1 and 11, but the present invention is not limited to this, and as shown in FIG. A plurality of linear adhesive layers 2 and 3 parallel to the width of the filter medium 1 may be applied to the width and thickness of the filter medium 1 in addition to both side edges on both sides thereof.
【００１１】[0011]
【発明の効果】本発明方法によるときは、得られた濾材
はその両側縁の両面に固化された接着剤層により連続山
形、或いはノコギリ刃のジグザグ状に維持されているの
で、従来のような濾材が並行状に形成されたものに比し
て、圧損が少ないという効果が有り、また両側縁の両面
に夫々塗布した接着剤層を備える濾材を三角形押型で折
り曲げた後、接着剤層を固化するようにしたので、折り
曲げられた濾材を固化された接着剤層により連続山形、
或いはノコギリ刃のジグザグ状に維持することが簡単に
かつ確実に行うことが出来る等の効果が有る。また，濾
材の両面に形成する接着剤層の形成を濾材の一方の面で
は一定間隔で厚さが中央部分で厚く、その両端では最も
薄くなる接着剤層に形成すると共に、一方の面の中央部
分に対応する他方の面の中央部分では最も薄く、その両
端では最も厚くな接着剤層に形成するように塗布すれ
ば、濾材の折り曲げを接着剤層の厚さが最も薄い中央部
分で行えばよいから折り曲げ作業が簡単でかつ確実に行
うことが出来る効果が有る。According to the method of the present invention, the obtained filter medium is maintained in a continuous mountain shape or a zigzag shape with a sawtooth blade by adhesive layers solidified on both sides of the filter material. This has the effect of reducing pressure loss compared to the filter media formed in parallel, and the filter media with adhesive layers applied to both sides of both sides is bent by a triangular pressing mold, and then the adhesive layer is solidified. So that the bent filter medium is continuously shaped by the solidified adhesive layer,
Alternatively, the zigzag shape of the saw blade can be easily and reliably maintained. In addition, the adhesive layer formed on both sides of the filter medium is formed on one side of the filter medium at a constant interval with the thickness being thick at the center portion and at both ends being the thinnest adhesive layer, and at the center of one side. If it is applied so as to form the thinnest adhesive layer at the center of the other surface corresponding to the part and the thickest adhesive layer at both ends, if the filter medium is bent at the center where the adhesive layer is the thinnest, Since it is good, there is an effect that the bending operation can be performed easily and reliably.
【図１】 本発明方法の１実施例を表す工程の概略図。FIG. 1 is a schematic view of a process representing one embodiment of the method of the present invention.
【図２】 濾材への接着剤層の形成法の１実施例の断面
説明図。FIG. 2 is an explanatory sectional view of one embodiment of a method for forming an adhesive layer on a filter medium.
【図３】 本発明方法で得られたジグザグ状濾材の要部
断面図。FIG. 3 is a sectional view of a main part of a zigzag filter medium obtained by the method of the present invention.
【図４】 本発明方法で得られたジグザグ状濾材の気流
の流れ状態を示す説明図。FIG. 4 is an explanatory view showing a flow state of an airflow of a zigzag-shaped filter medium obtained by the method of the present invention.
【図５】 濾材への接着剤層の形成法の他の実施例の断
面説明図。FIG. 5 is an explanatory sectional view of another embodiment of a method for forming an adhesive layer on a filter medium.
【図６】 濾材への接着剤層の形成法の変形例を示す斜
視図。FIG. 6 is a perspective view showing a modified example of a method for forming an adhesive layer on a filter medium.
【図７】 従来法により得られた濾材の断面図。FIG. 7 is a cross-sectional view of a filter medium obtained by a conventional method.
【図８】 従来法により得られた濾材の気流の流れ状態
を示す説明図。FIG. 8 is an explanatory view showing a flow state of an air flow of a filter medium obtained by a conventional method.
１，１１ 濾材、 ２，３，１２，１３ 接着剤
層、４ 先端部、 ５ 三角形押型。1,11 filter medium, 2,3,12,13 adhesive layer, 4 tip, 5 triangle press.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B01D 46/00 - 46/52 ──────────────────────────────────────────────────続 き Continuation of front page (58) Field surveyed (Int. Cl. 7 , DB name) B01D 46/00-46/52
Claims (5)
畳んだジグザグ状エアフィルタ濾材の製造方法におい
て、少くとも濾材シートの両側縁の両面に夫々接着剤を
塗布して接着剤層を形成した後、該濾材シートを、該接
着剤が未だ軟化状態にある間に、互いに刺違えに進退自
在であって先端が互いに対向せる先端部が鋭角状の三角
形押型の両押型間に挟み込み圧接状態にて挟持すること
によって、ジグザグ状に折り畳むと同時に、接着剤層を
固化して連続山形状、或いはノコギリ状のジグザグ状に
形成することを特徴とするジグザグ状エアフィルタ濾材
の製造方法。1. A method of manufacturing a zigzag air filter medium in which a filter medium made of a non-woven fabric is folded in a zigzag manner, wherein an adhesive is applied to both surfaces of at least both side edges of the filter medium sheet to form an adhesive layer. The filter medium sheet is
While wearing agent is still in a softened state, Sashichigae be nipped distal tip a movable back and forth causes opposing at scissors Write-pressure contact between the two embossing die of acute triangular pressing die to each other
Accordingly, the same time when folded in a zigzag manner, continuous mountain shape by solidifying the adhesive layer, or a zigzag-shaped air filter medium manufacturing method of and forming a serrated zigzag.
であることを特徴とする請求項１に記載のジグザグ状エ
アフィルタ濾材の製造方法。2. The adhesive of a hot melt type.
The method for manufacturing a zigzag air filter medium according to claim 1, wherein
の外方側の接着剤層の厚さを肉厚に、また前記各頂点の
内方側の接着剤層の厚さを肉薄に形成することを特徴と
する請求項１または２に記載のジグザグ状エアフィルタ
濾材の製造方法。3. Each zigzag vertex of the zigzag filter medium.
The thickness of the adhesive layer on the outer side of the
The feature is that the thickness of the adhesive layer on the inner side is made thin.
The method for producing a zigzag-shaped air filter medium according to claim 1 .
して連続線状の接着剤層に形成することを特徴とする請
求項１乃至３のいずれかに記載のジグザグ状エアフィル
タ濾材の製造方法。 4. The method according to claim 1, wherein the adhesive layer is formed with a constant thickness.
Forming a continuous linear adhesive layer
4. A zigzag air filter according to any one of claims 1 to 3.
Manufacturing method of filter media.
は一定間隔で厚さが中央部分で厚く、その両端では最も
薄くなる接着剤層に形成すると共に、一方の面の中央部
分に対応する他方の面の中央部分では最も薄く、その両
端では最も厚くなる接着剤層に形成するように塗布する
ことを特徴とする請求項１乃至３のいずれかに記載のジ
グザグ状エアフィルタ濾材の製造方法。 5. The method according to claim 1, wherein the adhesive layer is formed on one surface of the filter medium.
Are thick at the center at regular intervals, and
Form on the thinner adhesive layer and at the center of one side
In the center of the other surface corresponding to the minute,
Apply to form the thickest adhesive layer at the edges
4. The device according to claim 1, wherein
A method for producing a zag-shaped air filter medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03066515A JP3118646B2 (en) | 1991-03-29 | 1991-03-29 | Method for producing zigzag air filter medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03066515A JP3118646B2 (en) | 1991-03-29 | 1991-03-29 | Method for producing zigzag air filter medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04300612A JPH04300612A (en) | 1992-10-23 |
| JP3118646B2 true JP3118646B2 (en) | 2000-12-18 |
Family
ID=13318070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03066515A Expired - Lifetime JP3118646B2 (en) | 1991-03-29 | 1991-03-29 | Method for producing zigzag air filter medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3118646B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6932850B1 (en) * | 1998-06-29 | 2005-08-23 | Pall Corporation | Pleated filter and a method for making the same |
| ATE498447T1 (en) * | 2002-07-10 | 2011-03-15 | Donaldson Co Inc | PLEASED FILTER MATERIAL AND METHOD FOR PRODUCING THE SAME |
| JP2006102710A (en) * | 2004-10-08 | 2006-04-20 | Techno Sai Kk | Pre-main integrated air filter |
-
1991
- 1991-03-29 JP JP03066515A patent/JP3118646B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04300612A (en) | 1992-10-23 |
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