JPH0613082B2 - Air filter material for filter - Google Patents
Air filter material for filterInfo
- Publication number
- JPH0613082B2 JPH0613082B2 JP60232075A JP23207585A JPH0613082B2 JP H0613082 B2 JPH0613082 B2 JP H0613082B2 JP 60232075 A JP60232075 A JP 60232075A JP 23207585 A JP23207585 A JP 23207585A JP H0613082 B2 JPH0613082 B2 JP H0613082B2
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- JP
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- Prior art keywords
- fiber
- fibers
- pva
- ultrafine glass
- denier
- 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.)
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Description
【発明の詳細な説明】 〈産業上の利用分野〉 本発明は、極細ガラス繊維、細デニルポリビニルアルコ
ール系繊維、ポリビニルアルコール系繊維状バインダー
よりなるエヤーフィルター用材に関するものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a material for an air filter comprising an ultrafine glass fiber, a fine denier polyvinyl alcohol fiber, and a polyvinyl alcohol fibrous binder.
〈従来の技術〉 近年の産業界の発展はめざましいものがあり、精密工
業、電子工業、医薬品工業、食品工業など日進月歩の技
術革新がなされている。これを可能にしたのはクリーン
ルームに負うところが大きい。一般にクリーンルームで
用いられるエヤーフィルター用材（以降材という）
は、極細ガラス繊維単独あるいは極細ガラス繊維にアク
リルラテックスを定着せしめ湿式抄造したものがほとん
どである。ところがこの材は強力が弱いため、大型の
折たたみ型エヤーフィルター用ユニット（以下ユニット
という）が作り得ず、そればかりかユニットへの加工
時、折りたたみによる折れやスペーサー挿入による破れ
などがあり、またクリーンルームに取付時の取扱いミス
による破れ、使用時の振動による損傷などが起こりやす
いという欠点がある。これに対し、抄造時多量のアクリ
ルラテックスを定着せしめることによりある程度強力の
強い材を得ることができるが、材の極細ガラス繊維
間に多量のゴム状物質が付着するため、通気時の圧力損
失が大きくなり短寿命になる。多量のアクリルラテック
スを用いた材に更に通常の化合繊維を混合することが
考えられるが、圧力損失が減少し、強力は向上するもの
の材として最も重要である捕集効率が低下し、クリー
ンルームのエヤーフィルター用材として適さなくな
る。<Conventional Technology> The recent industrial development has been remarkable, and technological innovations such as precision industry, electronic industry, pharmaceutical industry, and food industry are being made rapidly. It is in the clean room that makes this possible. Materials for air filters generally used in clean rooms (hereinafter referred to as materials)
In most cases, ultrafine glass fibers are used alone or wet-papermaking is performed by fixing acrylic latex on ultrafine glass fibers. However, since this material is weak in strength, it is not possible to make a large foldable air filter unit (hereinafter referred to as a unit), and at the same time, when it is processed into a unit, it may be folded due to folding or broken by inserting a spacer. It has the drawbacks of being easily damaged during handling when installed in a clean room, and easily damaged by vibration during use. On the other hand, a strong material can be obtained to some extent by fixing a large amount of acrylic latex during papermaking, but since a large amount of rubber-like substance adheres between the ultrafine glass fibers of the material, the pressure loss during ventilation is reduced. Larger and shorter life. It is possible to mix ordinary compounded fibers with a material using a large amount of acrylic latex, but the pressure loss is reduced and the strength is improved, but the collection efficiency, which is the most important material, is reduced, and the air in the clean room is reduced. It becomes unsuitable as a filter material.
〈発明が解決しようとする問題点〉 本発明者らはかかる問題に対し、捕集効率及び圧力損失
を損うことなく強力を強くすることによってユニット組
立時、ユニットの取付け又は使用時に破損しにくいエヤ
ーフィルター用材を見い出すべく鋭意研究の結果、本
発明に達した。<Problems to be Solved by the Invention> With respect to such problems, the inventors of the present invention are less likely to be damaged at the time of unit assembly, unit installation or use by increasing the strength without impairing the collection efficiency and pressure loss. The present invention has been achieved as a result of intensive research to find a material for an air filter.
〈問題点を解決するための手段〉 すなわち本発明は、直径４μ以下の極細ガラス繊維60〜
97重量％、0.05〜0.5デニルの細デニルポリビニルアル
コール系繊維３〜40重量％、ポリビニルアルコール系繊
維状バインダー０〜７重量％よりなり、坪量が25〜150g
/m2であるエヤーフィルター用材を提供するものであ
る。<Means for Solving Problems> That is, according to the present invention, an ultrafine glass fiber 60 having a diameter of 4 μm or less is used.
97% by weight, 0.05 to 0.5 denier fine denier polyvinyl alcohol fiber 3 to 40% by weight, polyvinyl alcohol fiber binder 0 to 7% by weight, basis weight 25 to 150 g
The present invention provides a material for an air filter, which is / m 2 .
本発明のエヤーフィルター用材は極細ガラス繊維、細
デニルポリビニルアルコール系繊維と少量のポリビニル
アルコール（以降ＰＶＡという）系繊維状バインダーよ
りなり、極細ガラス繊維間を細デニルＰＶＡ系繊維で適
当に広げ、かつＰＶＡ系繊維状バインダーで極細ガラス
繊維及び／又は細デニルＰＶＡ系繊維間を強固に接着し
ているため捕集効率及び圧力損失が損なわれることなく
大巾な強力向上がなされている。The air filter material of the present invention comprises ultrafine glass fibers, fine denier polyvinyl alcohol fibers and a small amount of polyvinyl alcohol (hereinafter referred to as PVA) fibrous binder, and the fine glass fibers are appropriately spread between the fine denier PVA fibers. Moreover, since the ultrafine glass fibers and / or the fine denier PVA-based fibers are firmly bonded with the PVA-based fibrous binder, the collection efficiency and the pressure loss are not impaired, and the strength is greatly improved.
かかる材の坪量は25〜150g/m2、好ましくは40〜120g/
m2がよい。坪量が２５g/m2未満では材として必要な捕
集効率が不足し、150g/m2を越えると圧力損失が大きく
なる。The basis weight of such a material is 25 to 150 g / m 2 , preferably 40 to 120 g / m 2 .
m 2 is good. If the basis weight is less than 25 g / m 2 , the collection efficiency required as a material is insufficient, and if it exceeds 150 g / m 2 , pressure loss increases.
本発明で用いられる極細ガラス繊維はその直径が４μ以
下、好ましくは１μ以下がよい。４μを越えると得られ
る材の捕集効率が小さくなる。The ultrafine glass fiber used in the present invention has a diameter of 4 μm or less, preferably 1 μm or less. If it exceeds 4μ, the collection efficiency of the obtained material decreases.
混合量は60〜97％、好ましくは70〜95％であり、６０％
未満では捕集効率が小さくなり、９７％を越えると強力
が弱くなる。通常極細ガラス繊維は太さの異なる繊維の
集合体であることが多く、本発明に於ける繊維直径は市
販品と同じように平均値を意味するものである。Mixing amount is 60-97%, preferably 70-95%, 60%
If it is less than 100%, the collection efficiency will be low, and if it exceeds 97%, the strength will be weak. Usually, ultrafine glass fibers are often an aggregate of fibers having different thicknesses, and the fiber diameter in the present invention means an average value as in the case of commercially available products.
また、ＰＶＡ系繊維はＰＶＡ系繊維状バインダーとの接
着性が著しく優れているため該材の強力向上には非常
に適している。かかるＰＶＡ繊維は通常の紡糸法でＰＶ
Ａを原料として得られる繊維で、アセタール化したもの
でもアセタール化していないものでもよく、水中溶解温
度が９０℃以上であればよい。特に細デニルＰＶＡ繊維
で水中溶解温度が90〜110℃のものは繊維相互の接着性
がよいばかりか水素結合によって強く結合することによ
り極細ガラス繊維との接着性もよい為、バインダーを用
いなくとも大きな強力向上能力を有している。更にバイ
ンダーを用いないかかる繊維よりなる材は極細ガラス
繊維間がかかる繊維により適度に広げられ、かつバイン
ダーによる水かき状皮膜ができないため強力が強いだけ
でなく、捕集効率が損なわれることなく圧力損失が減少
し材寿命が長くなる。従って極細ガラス繊維と水中溶
解温度が90〜110℃の細デニルＰＶＡ繊維の組み合せが
本発明の最も好ましい例である。また、ＰＶＡ系繊維以
外にポリエステル繊維、ポリアクリロニトリル繊維、ポ
リアミド繊維、ポリプロピレン繊維などを含んでいても
良い。かかるＰＶＡ系繊維の繊度は0.05〜0.5デニルが
よく、0.05デニル未満では水中に於ける分散が悪化し、
0.5デニルを越えると捕集効率が低下する。細デニルＰ
ＶＡ系繊維の量は３〜４０％、好ましくは５〜３０％で
あり、３％未満では強力が弱く、４０％を越えると捕集
効率が低下する。In addition, since PVA-based fibers have remarkably excellent adhesiveness with PVA-based fibrous binders, they are very suitable for improving the strength of the material. Such PVA fibers can be PVd by a conventional spinning method.
Fibers obtained from A as a raw material may be acetalized or non-acetalized, and the melting temperature in water may be 90 ° C. or higher. In particular, fine denier PVA fibers having a melting temperature in water of 90 to 110 ° C have good adhesiveness to each other as well as strong adhesiveness to ultrafine glass fibers due to strong bonding by hydrogen bond, so that no binder is required. Has a great ability to improve power. Furthermore, a material made of such a fiber without using a binder is not only strong in strength because the web-like film formed by the binder can be appropriately spread by the fibers that have a space between the ultrafine glass fibers, and the pressure loss without impairing the collection efficiency. Is reduced and the material life is extended. Therefore, a combination of ultrafine glass fibers and fine denier PVA fibers having a melting temperature in water of 90 to 110 ° C. is the most preferable example of the present invention. In addition to PVA-based fibers, polyester fibers, polyacrylonitrile fibers, polyamide fibers, polypropylene fibers and the like may be included. The fineness of the PVA-based fiber is preferably 0.05 to 0.5 denier, and if it is less than 0.05 denier, the dispersion in water deteriorates.
If it exceeds 0.5 denier, the collection efficiency will decrease. Fine Denyl P
The amount of the VA fiber is 3 to 40%, preferably 5 to 30%. If it is less than 3%, the strength is weak, and if it exceeds 40%, the collection efficiency is lowered.
本発明で用いられるＰＶＡ系繊維状バインダーは該材
を形成している繊維間を強固に接着し、強力付与に非常
に有効である。かかるバインダーは重合度が500〜250
0、ケン化度が８５mol％以上のＰＶＡあるいは各種変性
ＰＶＡよりなり、かつ水中溶解温度が45〜90℃、繊度が
0.3〜10.0デニル、繊維長が１〜１０mmであるのが好ま
しい。特に特願昭59-87438号に記載のシリル変性ＰＶＡ
系繊維状バインダーは極細ガラス繊維との接着性がよい
ため、本発明の材の強力向上に非常に好ましい。かか
るＰＶＡのシリル変性度は0.1〜10.0mol％がよい。バイ
ンダー量は０〜７％が好ましく、７％を越えると強力は
大巾に向上するが反面、繊維交点に水かき状のバインダ
ー皮膜が無数にできて圧力損失が大きくなり、材寿命
が短かくなる。The PVA fibrous binder used in the present invention firmly adheres the fibers forming the material to each other and is very effective in imparting strength. The binder has a degree of polymerization of 500 to 250.
0, composed of PVA having a saponification degree of 85 mol% or more or various modified PVA, and having a dissolution temperature in water of 45 to 90 ° C. and a fineness of
It is preferably 0.3 to 10.0 denier and the fiber length is 1 to 10 mm. Particularly, the silyl-modified PVA described in Japanese Patent Application No. 59-87438.
Since the fibrous binder has good adhesiveness with the ultrafine glass fiber, it is very preferable for improving the strength of the material of the present invention. The degree of silyl modification of PVA is preferably 0.1 to 10.0 mol%. The binder amount is preferably 0 to 7%, and if it exceeds 7%, the strength is greatly improved, but on the other hand, a number of web-like binder films are formed at the fiber intersections, pressure loss becomes large, and material life becomes short. .
本発明の材は通常の湿式抄造機で容易に製造できる。
用いられる抄き網は円網、短網、長網、ロトフォーマー
などいずれでもよく、また乾燥機はヤンキー型が望まし
いが、多筒式でもスルードライヤーでもかまわない。The material of the present invention can be easily manufactured by a conventional wet papermaking machine.
The paper making net used may be a cylinder, a short net, a long net, a rotoformer, or the like, and the dryer is preferably a Yankee type, but may be a multi-cylinder type or a through dryer.
〈発明の効果〉 本発明の材は極細ガラス繊維、細デニルＰＶＡ系繊維
および必要によりＰＶＡ系繊維状バインダーよりなり、
捕集効率及び圧力損失がクリーンルームのエヤーフィル
ター用材に用いられるに十分な性能を有し、かつ高強
力のため大型ユニットの作製が可能でかつユニット組み
たて時あるいは取付け時に破損が生じにくいという特長
を有するものである。<Effects of the Invention> The material of the present invention comprises ultrafine glass fibers, fine denier PVA-based fibers and optionally PVA-based fibrous binders,
Features that the collection efficiency and pressure loss are sufficient for use as an air filter material in a clean room, and that high strength makes it possible to make large units and that damage is unlikely to occur during unit assembly or installation. Is to have.
なお、本発明に於ける捕集効率はJIS-B-9908の形式１に
より測定した。また、圧力損失はJIS-L-1096のフラジー
ル型試験器で風速4.3cm/secに於いて測定した圧力差で
ある。本発明の％は特にことわりのない限りすべて重量
％である。The collection efficiency in the present invention was measured according to JIS-B-9908 type 1. The pressure loss is the pressure difference measured at a wind velocity of 4.3 cm / sec with a JIS-L-1096 Frazier type tester. All percentages in the present invention are weight percentages unless otherwise stated.
以下、実施例で本発明を説明する。Hereinafter, the present invention will be described with reference to examples.
実施例１ 通常の円網−ヤンキードライヤー型抄紙機で、チェスト
に直径0.5μの極細ガラス繊維９０％と繊度0.4デニル、
繊維長３mm、ホルマール化度25mol％、水中溶解温度120
℃以上のＰＶＡ繊維（以降VPB043×３という）６％、繊
度１デニル、繊維長３mm、水中溶解温度６０℃のＰＶＡ
系繊維状バインダー（以降VPB105−２×３という）４％
よりなる紙料を調合し、坪量が68.2g/m2の材を通常の
方法で抄造した。Example 1 An ordinary cylinder-yankee dryer type paper machine was used, and a chest was made of 90% ultrafine glass fibers with a diameter of 0.5 μ and a fineness of 0.4 denier.
Fiber length 3mm, degree of formalization 25mol%, dissolution temperature 120 in water
PVA fiber having a PVA fiber temperature of ℃ or higher (hereinafter referred to as VBP043 × 3) 6%, fineness of 1 denier, fiber length of 3 mm, melting temperature of 60 ℃ in water
-Based fibrous binder (hereinafter referred to as VPB105-2 x 3) 4%
A paper material having a basis weight of 68.2 g / m 2 was prepared by a conventional method.
実施例２〜５ 実施例１の方法で直径0.5μの極細ガラス繊維９０％、V
PB043×３ ６％、VPB105-2×３ ４％よりなり、坪量
が102.3g/m2の材（実施例２）、直径0.5μの極細ガラ
ス繊維７５％、VPB043×３ 21％、VPB105-2×３ ４％
よりなり、坪量が70.5g/m2の材（実施例３）、直径0.
5μの極細ガラス繊維９０％、繊度0.2デニル、繊維長２
mm、水中溶解温度106℃で、ホルマール化していないＰ
ＶＡ繊維（以降VPK022×２という）１０％よりなり、坪
量が71.4g/m2の材（実施例４）、更に直径0.5μの極
細ガラス繊維９０％、VPB043×３ ６％、繊度１デニ
ル、繊維長３mm、水中溶解温度６０℃でシリル変性ＰＶ
Ａを用いた繊維状バインダー（以降SPG-106-11×３とい
う）４％よりなり、坪量が69.2g/m2である材（実施例
５）を抄造した。Examples 2 to 5 90% of ultrafine glass fibers having a diameter of 0.5 μm and V according to the method of Example 1
PB043 x 3 6%, VPB105-2 x 34%, material with a basis weight of 102.3 g / m 2 (Example 2), ultrafine glass fiber with a diameter of 0.5μ 75%, VPB043 x 3 21%, VPB105- 2 x 34%
And a basis weight of 70.5 g / m 2 (Example 3) and a diameter of 0.
Ultrafine glass fiber of 5μ 90%, fineness 0.2 denier, fiber length 2
mm, dissolution temperature in water 106 ℃, unformalized P
Material consisting of 10% VA fiber (hereinafter referred to as VPK022 × 2) and having a basis weight of 71.4 g / m 2 (Example 4), 90% ultrafine glass fiber with a diameter of 0.5 μ, VPB043 × 36%, fineness 1 denier , Fiber length 3mm, silyl-modified PV at melting temperature 60 ℃ in water
A material (Example 5) made of 4% of a fibrous binder using A (hereinafter referred to as SPG-106-11 × 3) and having a basis weight of 69.2 g / m 2 was produced.
比較例１〜２ 実施例１の方法で直径0.5μの極細ガラス繊維９０％、
繊度２デニル、繊維長３mm、アセタール化度２５mol
％、水中溶解温度１２０℃以上のＰＶＡ繊維（以降VPB2
03×３という）６％、VPB105-2×３ ４％よりなり、坪
量が69.8g/m2である材（比較例１）及び直径0.5μの
極細ガラス繊維100％で坪量が70.2g/m2である材（比
較例２）を抄造した。Comparative Examples 1 and 2 90% of ultrafine glass fibers having a diameter of 0.5μ by the method of Example 1,
Fineness 2 denier, fiber length 3 mm, acetalization degree 25 mol
%, PVA fiber with a melting temperature of 120 ° C or more in water (hereinafter VPB2
3%) and VPB105-2 × 34%, and a basis weight of 69.8 g / m 2 (Comparative Example 1) and ultrafine glass fiber with a diameter of 0.5μ of 100% and a basis weight of 70.2 g. A material (Comparative Example 2) having a density of / m 2 was produced.
比較例３ 実施例１の抄紙機でチェストに直径0.5μの極細ガラス
繊維95.7％とアクリルラテックス4.3％の紙料を調合
し、極細ガラス繊維にアクリルラテックスを定着せし
め、坪量が63.3g/m2の材を通常の方法で抄造した。Comparative Example 3 Using the paper machine of Example 1, 95.7% of ultrafine glass fibers having a diameter of 0.5μ and 4.3% acrylic latex paper stock were mixed in a chest, and the acrylic latex was fixed to the ultrafine glass fibers, and the basis weight was 63.3 g / m 2. The material of No. 2 was made into paper by a usual method.
以上の実施例及び比較例の材性能を第１表に示す。Table 1 shows the material performance of the above Examples and Comparative Examples.
実施例１は細デニルＰＶＡ系繊維がVPB043×３で坪量が
68.2g/m2の材であって強力が強く、捕集効率も十分あ
り、かつ圧力損失が低い。実施例２は実施例１の坪量を
大きくした材であって、実施例１より強力及び捕集効
率がやや優れ、反面圧力損失がやや大きいものの超高性
能エヤーフィルターに十分使用しうる性能である。実施
例３は実施例１のVPB043×３を多量に用いた材であっ
て、実施例１より強力及び圧力損失が優れ、反面捕集効
率がやや低いが超高性能エヤーフィルターに十分使用し
うる性能である。実施例４はバインダーを用いず極細ガ
ラス繊維と水中溶解温度が90〜110℃の細デニルＰＶＡ
繊維よりなる材であって、細デニルＰＶＡ繊維の水中
溶解温度が適度に低く、自己接着性を有しているのでバ
インダーなしでも強力が強く、またバインダー皮膜がな
いため圧力損失が小さく、更に捕集効率もよい本発明の
最も優れた例である。実施例５は実施例のバインダーの
代りにSPG106-11×３を用いたもので、実施例１より強
力が強く、圧力損失も低く優れた性能を有している。以
上実施例１〜５はいずれも高強力で優れた過性能を有
している。比較例１は実施例１のVPB043×３の代りにVP
B203×３を用いた材であってＰＶＡ系繊維の繊度が大
きいため捕集効率が小さいという問題がある。比較例２
は極細ガラス繊維のみの材であり、比較例３は比較例
２の極細ガラスにアクリルラテックスを内添した材で
あっていずれも引張強力が弱く、これらの材は大型ユ
ニットが作り得ず、更にユニットに組立時又はユニット
をクリーンルームに取付け時破損しやすいという問題が
ある。従って比較例１〜３はいずれも欠点があり、好ま
しくない。 In Example 1, the fine denier PVA-based fiber is VPB043 × 3 and the basis weight is
68.2g / m 2 material with strong strength, sufficient collection efficiency and low pressure loss. Example 2 is a material having a larger basis weight than that of Example 1, and is slightly stronger and more efficient than Example 1, and has a slightly higher pressure loss, but is a performance that can be sufficiently used for an ultra-high performance air filter. is there. Example 3 is a material in which a large amount of VPB043 × 3 of Example 1 is used. The material is superior in strength and pressure loss to Example 1, and has a slightly lower trapping efficiency, but can be sufficiently used for an ultra-high performance air filter. Performance. Example 4 is a fine denier PVA having an ultrafine glass fiber and a dissolution temperature in water of 90 to 110 ° C. without using a binder.
It is a material consisting of fibers, and the melting temperature of fine denier PVA fibers in water is reasonably low, and it has self-adhesion, so it is strong even without a binder, and since there is no binder film, pressure loss is small. It is the most excellent example of the present invention with good collection efficiency. In Example 5, SPG106-11 × 3 was used instead of the binder of Example, and the strength was stronger than in Example 1 and the pressure loss was low and the performance was excellent. All of the above Examples 1 to 5 have high strength and excellent overperformance. Comparative Example 1 is VP instead of VPB043 × 3 of Example 1.
The material using B203 × 3 has a problem that the collection efficiency is small because the PVA fiber has a large fineness. Comparative example 2
Is a material made of only ultrafine glass fiber, and Comparative Example 3 is a material obtained by internally adding acrylic latex to the ultrafine glass of Comparative Example 2 and all have a weak tensile strength. There is a problem that the unit is easily damaged at the time of assembling or mounting the unit in a clean room. Therefore, all of Comparative Examples 1 to 3 have drawbacks and are not preferable.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 東森 正輔 岡山県岡山市海岸通１丁目２番１号 株式 会社クラレ内 (72)発明者 西山 正一 岡山県岡山市海岸通１丁目２番１号 株式 会社クラレ内 (56)参考文献 特開 昭60−25521（ＪＰ，Ａ) 特開 昭58−205520（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shosuke Higashimori 1-2-1, Kaigandori, Okayama-shi, Okayama Kuraray Co., Ltd. (72) Shoichi Nishiyama 1-2-1 Kaigan-dori, Okayama-shi, Okayama Kuraray Co., Ltd. (56) References JP-A-60-25521 (JP, A) JP-A-58-205520 (JP, A)
Claims (3)
％、0.05〜0.5デニールの細デニルポリビニルアルコー
ル系繊維、ポリビニルアルコール系繊維状バインダー０
〜７重量％よりなり、坪量が25〜150ｇ／m2であるエヤ
ーフィルター用材。1. An ultrafine glass fiber having a diameter of 4 .mu.m or less 60 to 97% by weight, a fine denier polyvinyl alcohol fiber having 0.05 to 0.5 denier, and a polyvinyl alcohol fiber binder 0
A material for an air filter, which comprises -7% by weight and has a basis weight of 25-150 g / m 2 .
中溶解温度が90〜110℃である特許請求の範囲第１項記
載のエヤーフィルター用材。2. The material for an air filter according to claim 1, wherein the fine denier polyvinyl alcohol fiber has a dissolution temperature in water of 90 to 110 ° C.
がシリル変性のポリビニルアルコールよりなる特許請求
の範囲第１または第２項のいずれかに記載のエヤーフィ
ルター用材。3. The material for an air filter according to claim 1, wherein the polyvinyl alcohol fibrous binder comprises silyl-modified polyvinyl alcohol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60232075A JPH0613082B2 (en) | 1985-10-16 | 1985-10-16 | Air filter material for filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60232075A JPH0613082B2 (en) | 1985-10-16 | 1985-10-16 | Air filter material for filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62110718A JPS62110718A (en) | 1987-05-21 |
| JPH0613082B2 true JPH0613082B2 (en) | 1994-02-23 |
Family
ID=16933597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60232075A Expired - Fee Related JPH0613082B2 (en) | 1985-10-16 | 1985-10-16 | Air filter material for filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0613082B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010122999A1 (en) | 2009-04-24 | 2010-10-28 | 北越紀州製紙株式会社 | Low-basis-weight filter media for air filters |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6344915A (en) * | 1986-08-13 | 1988-02-25 | Sanyo Kokusaku Pulp Co Ltd | Manufacture of air filter paper |
| JPS6344914A (en) * | 1986-08-13 | 1988-02-25 | Sanyo Kokusaku Pulp Co Ltd | Manufacture of air filter paper |
| JPH07102293B2 (en) * | 1989-03-24 | 1995-11-08 | 北越製紙株式会社 | Glass fiber filter paper for high performance air filter and method for producing the same |
| JPH09103624A (en) * | 1995-10-12 | 1997-04-22 | Nippon Glass Fiber Co Ltd | Filter medium for air filter and its manufacture |
| JP3848139B2 (en) * | 2001-11-27 | 2006-11-22 | 北越製紙株式会社 | Air filter media |
| JP4614669B2 (en) * | 2004-02-03 | 2011-01-19 | 日本バイリーン株式会社 | Filter material and filter |
| JP5148888B2 (en) * | 2007-02-09 | 2013-02-20 | 北越紀州製紙株式会社 | Filter material for air filter and method for producing the same |
| JP5688942B2 (en) * | 2010-09-30 | 2015-03-25 | 日本無機株式会社 | Filter paper and air filter using the filter paper |
| US20120175298A1 (en) * | 2010-10-21 | 2012-07-12 | Eastman Chemical Company | High efficiency filter |
| CN109891015B (en) * | 2016-10-24 | 2022-04-26 | 王子控股株式会社 | Inorganic fiber sheet, honeycomb formed body, and honeycomb filter |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58205520A (en) * | 1982-05-27 | 1983-11-30 | Teijin Ltd | Filter medium |
| JPS6025521A (en) * | 1983-07-22 | 1985-02-08 | Teijin Ltd | High performance filter material |
-
1985
- 1985-10-16 JP JP60232075A patent/JPH0613082B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010122999A1 (en) | 2009-04-24 | 2010-10-28 | 北越紀州製紙株式会社 | Low-basis-weight filter media for air filters |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62110718A (en) | 1987-05-21 |
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