JPS6316017A - Air filter paper - Google Patents
Air filter paperInfo
- Publication number
- JPS6316017A JPS6316017A JP15264386A JP15264386A JPS6316017A JP S6316017 A JPS6316017 A JP S6316017A JP 15264386 A JP15264386 A JP 15264386A JP 15264386 A JP15264386 A JP 15264386A JP S6316017 A JPS6316017 A JP S6316017A
- Authority
- JP
- Japan
- Prior art keywords
- filter paper
- cloth
- porous film
- paper
- reticulated
- 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.)
- Granted
Links
- 239000004744 fabric Substances 0.000 claims abstract description 20
- 239000012528 membrane Substances 0.000 claims description 22
- 239000000428 dust Substances 0.000 claims description 14
- 239000000835 fiber Substances 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 9
- 239000011148 porous material Substances 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 5
- 239000000839 emulsion Substances 0.000 abstract description 3
- 239000004925 Acrylic resin Substances 0.000 abstract description 2
- 229920000178 Acrylic resin Polymers 0.000 abstract description 2
- 230000000630 rising effect Effects 0.000 abstract 2
- 239000011800 void material Substances 0.000 abstract 2
- 229920000728 polyester Polymers 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 239000000470 constituent Substances 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Filtering Materials (AREA)
- Paper (AREA)
Abstract
Description
【発明の詳細な説明】
（発明の利用分野）
本発明は濾紙と濾紙からの発塵阻止用多孔質膜とを重ね
合わせた空気濾紙、特にその重ね合わせ構造に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION (Field of Application of the Invention) The present invention relates to an air filter paper in which a filter paper and a porous membrane for preventing dust generation from the filter paper are stacked, and particularly to the stacked structure thereof.
（従来技術とその問題点）
高性能濾紙例えば０．３μｍ径の粒子に対して９９．９
７％以上の捕捉効率をもつように設計された高性能濾紙
は、一般に微細な硝子または化学繊維を抄紙して作られ
る。このため製造時に生じた繊維の切断屑などの枦祇構
成繊維表面への付着をまぬがれることができないばかり
か、抄紙に当たって使用される水の中にも微少な粉塵が
含まれるのを阻止できない、その結果出来上がった濾紙
中およびその表面には多数の繊維粉や粉塵などの付着含
有を許し、これが送風時或いは濾紙に与えられる振動に
よって発塵して濾過器の下流側に出るため、実質的な捕
捉効率低下の欠点を生ずる。(Prior art and its problems) High performance filter paper, for example, 99.9% for particles with a diameter of 0.3 μm
High performance filter papers designed to have a capture efficiency of 7% or higher are generally made from fine glass or synthetic fibers. For this reason, not only is it impossible to avoid the adhesion of cut fiber waste generated during manufacturing to the surface of the constituent fibers of Kingi, but it is also impossible to prevent minute dust from being included in the water used in paper making. As a result, a large amount of fiber powder and dust is allowed to adhere to the filter paper and its surface, and this is generated by air blowing or vibrations applied to the filter paper and exits to the downstream side of the filter, making it virtually impossible to capture it. This results in the disadvantage of reduced efficiency.
これを防止するためには例えば濾紙の構成繊維間を接着
して機械的強度を増すため、抄紙用の水中に混入される
接着剤の濃度を高くして、切断屑などを繊維の表面に接
着する方法が考えられる。To prevent this, for example, in order to increase the mechanical strength by bonding the fibers that make up the filter paper, the concentration of adhesive mixed in the water used for paper making is increased, so that cut scraps etc. can be bonded to the surface of the fibers. There are ways to do this.
しかし接着剤の濃度を高くすると濾紙の通気細孔が埋め
られて圧力損失を大にするため、この方法では発塵の阻
止を充分に行い得ない。However, increasing the concentration of the adhesive fills the ventilation pores of the filter paper and increases pressure loss, so this method cannot sufficiently prevent dust generation.
そこで本発明者は先にポリ四弗化エチレンなどの弗素系
樹脂を処理して作られた、Ｐ紙の厚さ４００〜５００μ
ｍに対して５〜２０μ−の極めて薄い多７１Ｊｔ膜、例
えばジャパンゴアテソクス株式会社製商品名ボアテック
スが、２紙のような発塵物が全くないばかりでなく前記
切断層などを阻止するに充分な小さい通気細孔を持つと
同時に、最高９５％程度の極めて大きい開孔率を持ち、
しかも極めて薄いことから圧力損失が少ないことを利用
し、これを第１図に示す斜視図のように２紙（１）の空
気流出口側、即ち下流方向面に発塵阻止体（２）として
重ね合わせることにより、少ない圧力損失のも゛とに発
塵を阻止して高性能ｐ紙の性能の向上を図ることを提案
した（特願昭６１−１１７４９７号参照）。Therefore, the present inventor first developed a paper with a thickness of 400 to 500 μm, which was made by processing a fluorine-based resin such as polytetrafluoroethylene.
An extremely thin multi-71Jt film with a thickness of 5 to 20 μm per m, such as VORETEX (trade name, manufactured by Japan Goa Atesox Co., Ltd.) not only does not generate any dust unlike paper, but also prevents the cutting layer, etc. It has small ventilation pores that are sufficient for
Furthermore, since it is extremely thin, there is little pressure loss, and as shown in the perspective view shown in Figure 1, this is used as a dust generation prevention body (2) on the air outlet side of the paper (1), that is, on the downstream side. It was proposed that the performance of high-performance p paper could be improved by overlapping them to prevent dust generation while reducing pressure loss (see Japanese Patent Application No. 117497/1982).
しかし、上記の発塵阻止用の多孔質膜（２）は圧力損失
を少なくするため極めて薄いことから、それ自体では必
要とする機械的強度を得ることができない。そこで２紙
（１）との重ね合わせに当たっては、例えば沖紙と多孔
質膜とを接着剤により貼り谷わせる方法が強度的にも加
工の容易性からも有利であるが、この方法には次の大き
な欠点がある。即ちｐ紙＋１）の面には繊維の重なり合
いにもとづく凹凸があるため、接着剤が塗られてもその
通気細孔を埋める率は少ない、しかし樹脂製の多孔質膜
は平滑面であるため、その通気細孔の多くが接着剤によ
り埋められて開孔率の大きな低下を招く、従って圧力損
失の著しい増大を招いて２紙として使用出来なくなる。However, since the porous membrane (2) for preventing dust generation is extremely thin in order to reduce pressure loss, it cannot obtain the required mechanical strength by itself. Therefore, when stacking the two papers (1), for example, a method of pasting the Okigami paper and the porous membrane with an adhesive is advantageous in terms of strength and ease of processing. It has the following major drawbacks. In other words, the surface of P paper + 1) has unevenness due to overlapping fibers, so even if adhesive is applied, the rate of filling the ventilation pores is low. However, since the resin porous membrane has a smooth surface, Many of the ventilation pores are filled with the adhesive, resulting in a large decrease in the porosity, resulting in a significant increase in pressure loss, making the paper unusable as paper.
そこで例えば２紙と多孔質膜の重ね合わせ方法として、
２紙の四周部において多孔質膜を貼り合わせる方法、或
いは多孔質膜を枠体に張って２紙と重ね合わせる方法を
とらざるを得ない。しかしこれらの方法のように四周の
みを支持するもので４よ、支持部分以外の部分の送風圧
に対する機械的強度に不安がある。Therefore, for example, as a method for overlapping two papers and a porous membrane,
There is no choice but to use a method in which porous membranes are attached to the four circumferences of the two papers, or a method in which the porous membrane is stretched on a frame and overlapped with the two papers. However, since these methods support only the four peripheries, there is concern about the mechanical strength of the parts other than the supported parts against the blowing pressure.
（発明の目的）
本発明は以上のような欠点のない２紙と多孔質膜との重
ね合わせ構造の提供を目的としてなされたものであって
、次に図面を用いてその詳細を説明する。(Object of the Invention) The present invention has been made for the purpose of providing a superimposed structure of two papers and a porous membrane without the above-mentioned drawbacks, and the details thereof will be explained next with reference to the drawings.
（問題点を解決するための本発明の手段）本発明におい
ては第２図に示す工程斜視図のように、多孔質膜（２）
面に網状に作られた有体（３）を接着したものを、Ｐ紙
位置に重ね合わせることを特徴とするものであって、接
着により２紙とを永久重ね合わせを行う場合には、網状
布体（３）面と２紙（１１の下流面を接着し、また単に
重ね合わせる場合には多孔質膜（２）面が２紙（１）面
側に位置しても、網状布体（３）面が２紙（１）面側に
位置してもよい０次に本発明を具体例によって説明する
。(Means of the present invention for solving the problems) In the present invention, as shown in the perspective view of the process shown in FIG.
It is characterized by superimposing a material (3) made in a net shape on the surface at the P paper position, and when permanently superimposing the two papers by adhesion, the net shape If the cloth body (3) side and the downstream side of the 2 papers (11) are bonded together, or simply overlapped, even if the porous membrane (2) side is located on the 2 paper (1) side, the net-like cloth body ( 3) The 0th order surface may be located on the side of the 2nd paper (1) side.The present invention will be described with reference to a specific example.
ポリエチレン繊維により作られた線径０．３鶴であって
網目５ ｗ Ｘ ５ ｍの網状布体（３）を多孔質膜（
２）と重ね合わせたものを、２５０℃〜３００℃に加熱
したローラ間に適当な圧力を加えながら通すことにより
、多孔質膜（２）と網状布体（３）の熱可塑性を利用し
て接着する。そしてこれを２紙（１）の下流面に重ね合
わせるか、またはアクリル樹脂水エマルジヨン液を塗布
した枦祇（１）の下流面に網状布体（３）が戸紙面に位
置するように接着して永久的な重ね合わせを行う。A reticulated cloth body (3) made of polyethylene fibers with a wire diameter of 0.3 mm and a mesh size of 5 w x 5 m was coated with a porous membrane (
2) is passed between rollers heated to 250°C to 300°C while applying appropriate pressure, making use of the thermoplastic properties of the porous membrane (2) and the reticulated fabric (3). Glue. This is then superimposed on the downstream surface of the two papers (1), or glued to the downstream surface of the mesh cloth (1) coated with acrylic resin water emulsion so that the mesh fabric (3) is positioned on the door paper surface. permanent overlay.
また網状布体（３）として硝子繊維製のものが使用され
、多孔質膜として弗素樹脂のものが使用された場合には
、網状布体（３）の−面に弗素樹脂水エマルジヨン液を
塗布して１５０℃程度の温度で乾燥したものを４００〜
５００℃で加熱処理したのち、多孔質膜（２）と重ね合
わせて４００〜５００℃に加熱されたローラ間に通して
接着する。そしてこれを枦祇（１）の下流面に重ね合わ
せるか、上記と同一要領により戸紙面に接着して永久的
な重ね合わせを行う。In addition, if the mesh fabric (3) is made of glass fiber and the porous membrane is made of fluororesin, apply a fluororesin water emulsion liquid to the - side of the mesh fabric (3). and dried at a temperature of about 150℃ for 400~
After being heat-treated at 500°C, it is overlapped with the porous membrane (2) and bonded by passing between rollers heated to 400-500°C. This is then superimposed on the downstream surface of the tassel (1), or permanently superimposed by adhering it to the door paper surface in the same manner as above.
（本発明の作用と効果）
以上のようにすれば多孔質膜（２）と網状布体（３）と
は、互いに連結された網の細い線部分においてのみ接着
される。従って網状布体（３）の線径や網目の大きさの
選定により、開孔率の低下少なく多孔質膜（３）を補強
することができる。従って、２紙の四周に接着したり、
枠体に嵌めこむ方法に比べて高い機械的強度を与えうる
ので２紙との重ね合わせに有効である。しかも本発明に
よれば２紙（１）との接着においても、２紙（１）の面
には構成繊維にもとづく凹凸があり、これに網状布体（
３）がその線部において接着されるので、通気細孔の目
詰りが少な（圧力損失の大きな上昇を招くおそれがない
。(Operations and Effects of the Present Invention) In the above manner, the porous membrane (2) and the net-like cloth body (3) are bonded to each other only at the thin wire portions of the nets that are connected to each other. Therefore, by selecting the wire diameter and mesh size of the net-like cloth (3), the porous membrane (3) can be reinforced with less decrease in porosity. Therefore, by gluing the four circumferences of two pieces of paper,
It is effective for overlapping two sheets of paper because it can provide higher mechanical strength than the method of fitting them into a frame. Moreover, according to the present invention, even when adhering to the second paper (1), the surface of the second paper (1) has unevenness based on the constituent fibers, and the reticulated cloth (
3) is bonded at the line portion, so there is little clogging of the ventilation pores (there is no risk of causing a large increase in pressure loss).
実験によれば、前記のように線径が０，３ｎ＋の繊維に
よる網目の大きさが５鶴×５鶴の網状体を、開孔率が９
５％の多孔質膜に接着したところ、開孔率の低下は１０
〜１５％の小さい値で済み、一般に使用される送風圧５
．３ｃｍ７ｓｅｃにも充分耐える機械的強度をもつこと
が明らかにされた。従ってこれをｐ紙に重ね合わせるこ
とにより充分な機械的強度をもった発塵による性能低下
のない高性能ｐ紙を得ることができる。According to experiments, as mentioned above, a mesh body with a mesh size of 5 cranes x 5 cranes made of fibers with a wire diameter of 0.3n+ was made with a porosity of 9.
When bonded to a 5% porous membrane, the decrease in porosity was 10%.
A small value of ~15% is required, and the commonly used blowing pressure 5
．． It was revealed that it has sufficient mechanical strength to withstand 3 cm and 7 seconds. Therefore, by superimposing this on P paper, it is possible to obtain high performance P paper which has sufficient mechanical strength and does not suffer from deterioration in performance due to dust generation.
なお弗素樹脂系多孔質膜は融点温度が高いので、例えば
硝子繊維を高温に耐える弗素樹脂またはポリイミド樹脂
により処理したものによりｐ紙（１）を作り、これに弗
素樹脂系多孔質膜（２）を網状布体（３）を介して接着
すムことにより、最高３５０℃程度の使用温度をもつ発
塵のない高温用ｐ紙を作り得る。Note that the fluororesin porous membrane has a high melting point temperature, so for example, P paper (1) is made from glass fibers treated with a fluororesin or polyimide resin that can withstand high temperatures, and the fluororesin porous membrane (2) is made from this. By adhering them through a mesh cloth (3), it is possible to make high-temperature paper that can be used at a maximum operating temperature of about 350°C and does not generate dust.
第１図は発塵阻止用多孔質膜を備えたｐ紙の斜視図、第
２図は本発明の一実施例を示す斜視図である。
（１）・・・ｐ紙、 （２）・・・発塵阻止用多孔質膜
、（３）・・・網状布体。
声１（２）
竿２０FIG. 1 is a perspective view of p-paper provided with a porous membrane for preventing dust generation, and FIG. 2 is a perspective view showing an embodiment of the present invention. (1)...P paper, (2)...Porous membrane for preventing dust generation, (3)...Net-like cloth body. Voice 1 (2) Rod 20
Claims (1)
重ね合わせた空気濾紙において、上記発塵阻止用多孔質
膜の一面に通気性のよい網状布体を接着し、これを抄紙
濾紙に重ね合わせたことを特徴とする空気濾紙。In an air filter paper in which a paper filter paper and a porous membrane for preventing dust generation from the filter paper are superimposed, a highly breathable mesh cloth is adhered to one side of the porous membrane for preventing dust generation, and this is attached to the paper filter paper. Air filter paper characterized by being superimposed on.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15264386A JPS6316017A (en) | 1986-07-01 | 1986-07-01 | Air filter paper |
| EP87304583A EP0246917B1 (en) | 1986-05-23 | 1987-05-22 | High performance gas filter |
| AT87304583T ATE78416T1 (en) | 1986-05-23 | 1987-05-22 | HIGH PERFORMANCE GAS FILTER. |
| DE8787304583T DE3780511T2 (en) | 1986-05-23 | 1987-05-22 | HIGH PERFORMANCE GAS FILTER. |
| US07/230,275 US4877433A (en) | 1986-05-23 | 1988-09-26 | High performance gas filter assembly |
| HK1158/93A HK115893A (en) | 1986-05-23 | 1993-10-28 | High performance gas filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15264386A JPS6316017A (en) | 1986-07-01 | 1986-07-01 | Air filter paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6316017A true JPS6316017A (en) | 1988-01-23 |
| JPH048083B2 JPH048083B2 (en) | 1992-02-14 |
Family
ID=15544890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15264386A Granted JPS6316017A (en) | 1986-05-23 | 1986-07-01 | Air filter paper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6316017A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002370020A (en) * | 2001-06-13 | 2002-12-24 | Nitto Denko Corp | Suction filter medium for turbine, its using method and manufacturing method therefor |
| CN108379934A (en) * | 2018-05-07 | 2018-08-10 | 江苏灵氟隆环境工程有限公司 | A kind of dedusting antistatic filtrate and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5125874A (en) * | 1974-08-28 | 1976-03-03 | Yuasa Battery Co Ltd | SEIMITS USEKISOROKAZAI |
| JPS57191418U (en) * | 1981-05-29 | 1982-12-04 | ||
| JPS59148326U (en) * | 1983-03-25 | 1984-10-03 | 日東電工株式会社 | reinforced porous membrane |
| JPS6012579U (en) * | 1983-07-04 | 1985-01-28 | 富士塗油器株式会社 | Lubricating device for escalator handrails and guide rails |
-
1986
- 1986-07-01 JP JP15264386A patent/JPS6316017A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5125874A (en) * | 1974-08-28 | 1976-03-03 | Yuasa Battery Co Ltd | SEIMITS USEKISOROKAZAI |
| JPS57191418U (en) * | 1981-05-29 | 1982-12-04 | ||
| JPS59148326U (en) * | 1983-03-25 | 1984-10-03 | 日東電工株式会社 | reinforced porous membrane |
| JPS6012579U (en) * | 1983-07-04 | 1985-01-28 | 富士塗油器株式会社 | Lubricating device for escalator handrails and guide rails |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002370020A (en) * | 2001-06-13 | 2002-12-24 | Nitto Denko Corp | Suction filter medium for turbine, its using method and manufacturing method therefor |
| CN108379934A (en) * | 2018-05-07 | 2018-08-10 | 江苏灵氟隆环境工程有限公司 | A kind of dedusting antistatic filtrate and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH048083B2 (en) | 1992-02-14 |
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