JPH09192426A - Air filter nonwoven fabric and air filter using the same - Google Patents
Air filter nonwoven fabric and air filter using the sameInfo
- Publication number
- JPH09192426A JPH09192426A JP8007282A JP728296A JPH09192426A JP H09192426 A JPH09192426 A JP H09192426A JP 8007282 A JP8007282 A JP 8007282A JP 728296 A JP728296 A JP 728296A JP H09192426 A JPH09192426 A JP H09192426A
- Authority
- JP
- Japan
- Prior art keywords
- nonwoven fabric
- air filter
- filter
- dust
- press
- 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
Landscapes
- Filtering Materials (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Artificial Filaments (AREA)
- Multicomponent Fibers (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、エアーフィルタ
ー、たとえば集塵機用フィルター等において粉塵との衝
突、あるいはフィルター内部支持体である金網等により
擦過して発生するフィルター基材の毛羽立ちを抑制し、
かつパルスジェット後の粉塵離脱性の優れたエアーフィ
ルター用不織布およびそれからなるエアーフィルター装
置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention suppresses fluffing of a filter base material which is caused by collision with dust in an air filter such as a filter for a dust collector or by rubbing with a wire mesh which is an inner support of the filter.
The present invention also relates to a non-woven fabric for an air filter which is excellent in dust detachability after a pulse jet, and an air filter device including the same.
【０００２】[0002]
【従来の技術】エアーフィルター、たとえば集塵機用フ
ィルター等は、金属の研削工場や粉塵が多く発生する工
場での労働環境の改善に、比較的高価な有価物の回収に
と幅広く用いられている。2. Description of the Related Art Air filters, such as filters for dust collectors, are widely used for improving the working environment in a metal grinding factory or a factory where a large amount of dust is generated and for recovering relatively expensive valuable materials.
【０００３】これらの用途において、大部分がフィルタ
ー基材に織物、ニードルパンチした不織布を用いたバッ
グフィルターが使用されているが、近年、集塵機の高速
化・低負荷化および小型化への動きに伴い、フィルター
のタイプも、取替えや取付けが容易で、かつコンパクト
なカートリッジフィルターへ転向されつつある。In most of these applications, a bag filter using a woven fabric as a filter base material and a needle-punched non-woven fabric is used, but in recent years, there has been a movement toward speeding up, low load and miniaturization of a dust collector. Along with this, the filter type is also being converted to a compact cartridge filter that is easy to replace and install.
【０００４】該カートリッジフィルターに使用されるフ
ィルター基材は、一般にプリーツ加工を施し、フィルタ
ーユニット中での表面積を大きくして濾過機能を高めた
ものが使用される。The filter base material used in the cartridge filter is generally one which is pleated to increase the surface area in the filter unit to enhance the filtration function.
【０００５】かかるフィルター基材には、プリーツ加工
が可能で、そのために不織布を部分的に圧着し、ある程
度の硬さや強力を持たせたり、濾過性能を満足させるた
めに、不織布の見掛密度を高めたり、目付の高い不織布
が使用されている。かかるエアーフィルター用不織布と
して、一部共重合ポリエステル成分を含むポリエステル
連続フィラメントからなる部分的に圧着した不織布を使
用することが知られている。The filter base material can be pleated, and therefore the nonwoven fabric is partially pressure-bonded to have a certain degree of hardness and strength, and the apparent density of the nonwoven fabric is adjusted to satisfy the filtering performance. A non-woven fabric with a high or high basis weight is used. As such a non-woven fabric for an air filter, it is known to use a partially crimped non-woven fabric composed of polyester continuous filaments partially containing a copolyester component.
【０００６】この不織布は通常紡糸口金から、溶融紡出
された連続フィラメントをエアーサッカー等の手段によ
り吸引延伸し、移動する網状体の上に開繊体積させ連続
フィラメントウェブとし、次いで同ウェブを部分的に熱
圧着するという方法で得られている。This non-woven fabric is usually drawn from a spinneret by melt-spun continuous filaments by suction drawing by means such as air sucker to open and volume the fibers on a moving mesh to form a continuous filament web. It is obtained by thermocompression bonding.
【０００７】[0007]
【発明が解決しようとする課題】ところが、このような
従来のエアーフィルター用不織布では、集塵機用フィル
ター等において、粉塵粒径大、高濃度、高流速等の厳し
い濾過条件下で使用された場合、粉塵がフィルター基材
と衝突し、毛羽立ちが発生することがあった。また、該
カートリッジフィルターの内部にはフィルター基材を支
持するための円筒状の金網の型枠が使用されているが、
この金網とフィルター基材の擦過によって、毛羽立ちが
しばしば発生することがあった。However, in such a conventional nonwoven fabric for an air filter, when it is used in a filter for a dust collector or the like under severe filtration conditions such as large particle size of dust, high concentration and high flow velocity, Dust sometimes collided with the filter base material and fuzz was generated. In addition, a cylindrical wire netting frame for supporting the filter base material is used inside the cartridge filter.
The rubbing between the wire net and the filter base material often caused fuzzing.
【０００８】また、一般にこのような集塵機用フィルタ
ー用途においては、フィルター基材の表面上に捕集され
た粉塵を逆流エアーにより間欠的に払い落としながら使
用するパルスジェット方式が、フィルター寿命の延長を
図るために採用されているが、その場合、前記該毛羽立
ち部分に粉塵が絡み付き、パルスジェット後の粉塵離脱
性が悪化し、さらにはフィルターの寿命が低下してしま
うという問題が発生していた。In general, in such a dust collector filter application, the pulse jet method, in which the dust collected on the surface of the filter substrate is intermittently blown off by the backflow air, is used to extend the filter life. However, in this case, there is a problem that dust is entangled in the fluffed portion, the dust releasability after the pulse jet is deteriorated, and the life of the filter is shortened.
【０００９】本発明は、かかる問題を解決し、エアー濾
過時のフィルター基材の毛羽立ちが少なく、かつパルス
ジェット後の粉塵離脱性に優れた、集塵機用フィルター
としても十分な性能を持った、高寿命のエアーフィルタ
ー用不織布およびそれからなるエアーフィルター装置を
提供しようとするものである。The present invention solves such a problem, has less fuzz on the filter base material during air filtration, and has excellent dust detachability after pulse jet, and has sufficient performance as a filter for a dust collector. It is intended to provide a non-woven fabric for an air filter having a long life and an air filter device made of the nonwoven fabric.
【００１０】[0010]
【課題を解決するための手段】本発明者らは、かかる課
題を解決すべく、次のような構成を採用する。すなわ
ち、本発明のエアーフィルター用不織布は、部分的に圧
着された不織布であって、ＪＩＳ Ｂ０６０１に準じて
求められる該圧着部のくぼみの平均深さが６０μｍ以下
であることを特徴とするものである。The present inventors adopt the following structure in order to solve such a problem. That is, the non-woven fabric for an air filter of the present invention is a non-woven fabric that is partially pressure-bonded, and is characterized in that the average depth of the depressions in the pressure-bonded portion is 60 μm or less, which is determined according to JIS B0601. is there.
【００１１】[0011]
【発明の実施の形態】本発明は、エアーフィルターとし
て使用する不織布の表面の圧着部の深さが、エアー濾過
の際の粉塵との衝突、あるいはフィルター内部支持体で
ある金網等により擦過して発生するフィルター基材の毛
羽立ちに大きく影響を与えることを究明したものであ
る。具体的には該不織布の圧着部の形状、構造を特定な
ものにすると、粉塵、あるいはフィルター内部支持体で
ある金網等と、フィルター基材との摩擦抵抗が大きく低
減し、それによって毛羽立ちが抑制され、かつ粉塵離脱
性を向上させることができることを究明したものであ
る。BEST MODE FOR CARRYING OUT THE INVENTION According to the present invention, the depth of the pressure-bonded portion on the surface of the non-woven fabric used as an air filter collides with dust during air filtration, or is rubbed by a wire mesh which is an internal support of the filter. It was clarified that the generated fuzz of the filter substrate is greatly affected. Specifically, if the shape and structure of the pressure-bonded portion of the non-woven fabric is specified, the friction resistance between the filter base material and the dust or the wire mesh, which is the internal support of the filter, is greatly reduced, thereby suppressing fuzzing. In addition, it was clarified that the dust releasability can be improved.
【００１２】すなわち、かかる不織布の該圧着部のくぼ
みの深さと、フィルター基材の毛羽立ちとの関係を検討
したところ、該くぼみの平均深さがフィルター基材の毛
羽立ちと関係が深いことを究明し、さらには、ＪＩＳ
Ｂ０６０１表面粗さ規格に準じて求められる算術平均粗
さ（Ｒａ）、たとえば、一般に、金属等の表面粗さを確
認するために使用される株式会社小坂研究所製の表面粗
さ計ＳＥ−４０Ｃ（ＪＩＳ Ｂ０６５１触針式表面粗さ
測定器の規格に基づく）を用いて測定することができる
くぼみの平均深さが、密接に関係することを究明した。
すなわち、不織布のかかる圧着部のくぼみの平均深さが
６０μｍ以下とすることで、従来の不織布に比べ大幅に
フィルター基材の毛羽立ちを抑制することができること
を見出だした。That is, when the relationship between the depth of the depressions of the crimped portion of the nonwoven fabric and the fluffing of the filter substrate was examined, it was found that the average depth of the depressions is closely related to the fluffing of the filter substrate. , And JIS
Arithmetic mean roughness (Ra) determined according to the B0601 surface roughness standard, for example, SE-40C, a surface roughness meter manufactured by Kosaka Laboratory Ltd., which is generally used for confirming the surface roughness of metal or the like. It was revealed that the average depth of the indentations that can be measured using (based on the standard of JIS B0651 stylus type surface roughness measuring instrument) is closely related.
That is, it has been found that by setting the average depth of the depressions of the crimped portion of the nonwoven fabric to be 60 μm or less, the fuzz of the filter substrate can be significantly suppressed as compared with the conventional nonwoven fabric.
【００１３】圧着部のくぼみの平均深さが６０μｍを越
すと、フィルター基材の毛羽立ちが幾何級数的に大きく
なっていき、エアーフィルターとして適さなくなる。ま
た、該くぼみの平均深さを小さくすることは、不織布表
面の凹凸が小さくなることであり、粉塵あるいはフィル
ター支持体である金網等と、フィルター基材との摩擦抵
抗が大きく低減されることを意味する。また、フィルタ
ー基材の毛羽立ちが抑制されることから、該毛羽立ちへ
の粉塵の絡み付きも低減され、パルスジェット後の粉塵
離脱性が向上し、更には寿命性能を向上させることがで
きるのである。本発明の基本思想は、エアーフィルター
として使用する不織布表面の圧着部の深さを浅くし、粉
塵との衝突あるいはフィルター支持体である金網等との
擦過により発生するフィルター基材の毛羽立ちを抑制
し、かつパルスジェット後の粉塵離脱性を向上させるこ
とにある。When the average depth of the depressions in the pressure-bonded portion exceeds 60 μm, the fluffing of the filter base material becomes geometrically large and it becomes unsuitable as an air filter. In addition, reducing the average depth of the depressions means that the unevenness of the surface of the nonwoven fabric is reduced, and the frictional resistance between the filter base material and dust or wire mesh, which is the filter support, is greatly reduced. means. Further, since the fluffing of the filter base material is suppressed, the entanglement of dust to the fluffing is reduced, the dust detachability after the pulse jet is improved, and further the life performance can be improved. The basic idea of the present invention is to reduce the depth of the pressure-bonded portion on the surface of the non-woven fabric used as an air filter, and to suppress the fuzzing of the filter base material caused by collision with dust or rubbing with a wire mesh or the like which is a filter support. And to improve the dust detachability after the pulse jet.
【００１４】本発明で言う部分的に圧着された不織布と
は、不織布を構成している連続フィラメント間が熱と圧
力によって融着し、部分的にくぼみがあること、すなわ
ち、フィラメント密度が高くなった部分が点在するもの
である。このように、部分的に圧着するためには、通
常、加熱した一対のエンボスロールが使用されるが、本
発明においては、エンボスロールの形態、組合わせ等に
ついて特に規制するものではない。また、圧着部の不織
布全体の面積に占める割合も、特に規制するものではな
いが、より少ない方が好ましく、たとえば、好ましくは
１０〜３０％、さらに好ましくは１５〜２０％の範囲で
占めるのがよい。具体的には、圧着部面積が０．５〜
１．５cm2 である場合、好ましくは１０〜５０個／c
m2 、さらに好ましくは２５〜３５個／cm2 の範囲がよ
い。The partially-compressed non-woven fabric referred to in the present invention means that the continuous filaments constituting the non-woven fabric are fused by heat and pressure and have some depressions, that is, the filament density becomes high. There are scattered parts. As described above, a pair of heated embossing rolls is usually used to partially press-bond, but in the present invention, the form, combination, and the like of the embossing rolls are not particularly limited. The proportion of the pressure-bonded portion to the entire area of the nonwoven fabric is not particularly limited, but is preferably smaller, for example, preferably 10 to 30%, more preferably 15 to 20%. Good. Specifically, the crimping area is 0.5 to
When it is 1.5 cm 2 , preferably 10 to 50 pieces / c
m 2 is more preferable, and a range of 25 to 35 pieces / cm 2 is more preferable.
【００１５】ところで本発明のフィルター用不織布は、
目付１００ｇ／ｍ2 以上であり、また、剛軟度が５００
ｍｇ以上であるものを使用するのが好ましく、さらにこ
れらの両方の要件を満足するものが特に好ましい。これ
は、該フィルター用不織布がプリーツ加工を施し使用さ
れることから、ある程度の硬さや強力を持たすのが好ま
しく、目付および剛軟度のいずれかが外れた場合には、
プリーツ加工が困難であるばかりか、プリーツ形態を保
持することも困難なものとなるのである。また、フィル
ター性能においても満足できるものが得られにくくなる
傾向がでてくるものである。By the way, the nonwoven fabric for filters of the present invention is
The basis weight is 100 g / m 2 or more, and the bending resistance is 500.
It is preferable to use one that is more than or equal to mg, and one that satisfies both of these requirements is particularly preferable. This is because the filter non-woven fabric is used after pleating, it is preferable to have a certain degree of hardness and strength, in the case of any one of the areal weight and bending resistance,
Not only is pleating difficult, but it is also difficult to maintain the pleated form. Also, it tends to be difficult to obtain a filter having satisfactory performance.
【００１６】本発明のフィルター用不織布は、好ましく
はフィラメントで構成されているのが好ましく、さらに
好ましくはポリエステル系フィラメントで構成されてお
り、特に好ましくはポリエステル系複合フィラメント、
それも芯鞘構造を有する複合フィラメントで構成されて
いるものが好ましい。かかる複合フィラメントとして
は、鞘成分が芯成分に対し２０℃以上低い融点を持つ共
重合ポリエステルから成ることが、目付の高い不織布を
得る上で非常に好ましい。更に、芯鞘構造とは、一般的
な同心円が最も好ましいが、偏芯円形、異型断面型とし
てもよい。また、かかるポリエステル系フィラメントに
酸化チタン、カーボンブラック等の添加剤を含んでもよ
いことは言うまでもない。本発明の共重合ポリエステル
成分とは、アジピン酸、イソフタル酸、等を共重合した
ポリエステルであり、酸化チタン、カーボンブラック等
の添加剤を含んでもよいことは言うまでもない。The nonwoven fabric for filters of the present invention is preferably composed of filaments, more preferably polyester filaments, particularly preferably polyester composite filaments,
It is also preferably composed of a composite filament having a core-sheath structure. As such a composite filament, it is very preferable that the sheath component is made of a copolyester having a melting point lower than that of the core component by 20 ° C. or more in order to obtain a nonwoven fabric having a high basis weight. Further, the core-sheath structure is most preferably a general concentric circle, but may be an eccentric circle or an irregular cross-section. Needless to say, the polyester filament may contain an additive such as titanium oxide or carbon black. It goes without saying that the copolyester component of the present invention is a polyester obtained by copolymerizing adipic acid, isophthalic acid, etc., and may contain an additive such as titanium oxide or carbon black.
【００１７】本発明のかかるエアーフィルター用不織布
を、たとえば、集塵機用フィルター装置に使用すると、
粉塵との衝突、あるいはフィルター内部支持体である金
網等との擦過により発生するフィルター基材の毛羽立ち
を抑制し、かつパルスジェット後の粉塵離脱性を向上さ
せることにより、高寿命のエアーフィルター装置を提供
することができるものである。When the non-woven fabric for an air filter according to the present invention is used, for example, in a filter device for a dust collector,
By suppressing the fluffing of the filter substrate that occurs due to collision with dust or rubbing against the wire mesh that is the internal support of the filter, and improving the dust detachability after pulse jet, a long-life air filter device can be provided. What can be provided.
【００１８】[0018]
【実施例】次に、実施例に基づいて本発明を具体的に説
明する。なお、実施例における各種特性は次の方法によ
り測定した。Next, the present invention will be specifically described based on examples. Various characteristics in the examples were measured by the following methods.
【００１９】くぼみの平均深さ：くぼみの平均深さは、
表面粗さ測定器（株式会社小坂研究所製の表面粗さ計Ｓ
Ｅー４０Ｃ：ＪＩＳ Ｂ０６５１触針式表面粗さ測定器
の規格に基づく）を使用して、ＪＩＳーＢ０６０１表面
粗さ規格に準じて求められる算術平均粗さ（Ｒａ）を表
す。算術平均粗さは、カットオフ値２．５mm、評価長さ
８mmで測定した。 毛羽立ち特性：テーバ形磨耗試験機により、ＪＩＳ Ｌ
１０９６に準じた、摩耗輪、荷重条件で１００回磨耗
後、外観を観察した。Average depth of depressions: The average depth of depressions is
Surface roughness measuring instrument (Surface roughness meter S made by Kosaka Laboratory Ltd.
E-40C: based on the standard of JIS B0651 stylus type surface roughness measuring instrument) is used to represent the arithmetic mean roughness (Ra) determined according to the JIS-B0601 surface roughness standard. The arithmetic average roughness was measured at a cutoff value of 2.5 mm and an evaluation length of 8 mm. Fluffing characteristics: JIS L by a taper type abrasion tester
According to 1096, the appearance was observed after 100 cycles of wear under the conditions of a worn wheel and load.
【００２０】外観変化は以下の様に定義し、判定を行っ
た。The appearance change was defined and judged as follows.
【００２１】Ａ級 ： まったく毛羽立ちがない。Grade A: No fuzz at all.
【００２２】Ｂ級 ： 少し毛羽立ちはあるが目立たな
い。Class B: Some fluffing but not noticeable.
【００２３】Ｃ級 ： 毛羽立ちが目立つ 目付：ＪＩＳ Ｌ１０９６に準じて求めた。Class C: Conspicuous fluffing Weight: Determined according to JIS L1096.
【００２４】剛軟度：ＪＩＳ Ｌ１０９６ ガーレ法に
準じて求めた。Bending resistance: Determined according to JIS L1096 Gurley method.
【００２５】エアーフィルター性能：粉塵捕集−粉塵払
落（パルスジェット）の繰返しテストを、エアーフィル
ターモデル装置を用いて、下記条件にて評価を行った。Air filter performance: Dust collection-dust removal (pulse jet) repeated tests were evaluated under the following conditions using an air filter model device.
【００２６】 実施例１、２ 融点が２６０℃のポリエチレンテレフタレートを芯成
分、融点が２３０℃のイソフタル酸共重合ポリエステル
を鞘成分とし、芯成分と鞘成分の重量比をそれぞれ、８
５：１５、７０：３０とした複合連続フィラメントを単
糸繊度２ｄで溶融紡出し、空気圧により開繊した後、移
動するネット上に体積させ、一対の加熱エンボスロール
を使用し、表面温度２１０℃、線圧を６０ｋｇ／cmで圧
着し、目付２６０ｇ／ｍ2 、厚さ０．６ｍｍの不織布を
得た。これら不織布の表面のくぼみの平均深さは、それ
ぞれ表／裏＝２５／２０μｍ、４５／４０μｍであっ
た。[0026] Examples 1 and 2 Polyethylene terephthalate having a melting point of 260 ° C. as a core component, isophthalic acid copolyester having a melting point of 230 ° C. as a sheath component, and the weight ratio of the core component to the sheath component was 8 respectively.
A composite continuous filament of 5:15 and 70:30 was melt-spun at a single yarn fineness of 2d, opened by air pressure, and then spread on a moving net, and a pair of heating embossing rolls were used, and a surface temperature of 210 ° C. Then, it was pressure-bonded at a linear pressure of 60 kg / cm to obtain a nonwoven fabric having a basis weight of 260 g / m 2 and a thickness of 0.6 mm. The average depth of the depressions on the surface of these non-woven fabrics was 25/20 μm for front / back and 45/40 μm for 45 μm, respectively.
【００２７】毛羽立ち特性は両水準ともＡ級と良好で、
表を濾過面として評価したエアーフィルター性能におい
ても、払落２００回後もさらに使用可能、満足いく寿命
性能が得られた。結果を図１、表１に示す。The fluffing characteristics are good as A grade at both levels,
Also in the air filter performance evaluated by using the table as the filtration surface, it was possible to further use even after 200 times of removal, and satisfactory life performance was obtained. The results are shown in Fig. 1 and Table 1.
【００２８】比較例１ 融点が２６０℃のポリエチレンテレフタレートを芯成
分、融点が２３０℃のイソフタル酸共重合ポリエステル
を鞘成分とし、芯成分と鞘成分の重量比を５０：５０と
した複合連続フィラメントを単糸繊度２ｄで溶融紡出
し、空気圧により開繊した後、移動するネット上に体積
させ、一対の加熱エンボスロールを使用し、表面温度を
２１０℃、線圧を６０ｋｇ／cmで圧着し、目付２６０ｇ
／ｍ2 、厚さ０．６mmの不織布を得た。この不織布表面
のくぼみの平均深さは表／裏＝７０／６５μｍであっ
た。Comparative Example 1 A composite continuous filament having a core component of polyethylene terephthalate having a melting point of 260 ° C., an isophthalic acid copolyester having a melting point of 230 ° C. as a sheath component, and a weight ratio of the core component to the sheath component of 50:50. Melt-spun with a single yarn fineness of 2d, opened by air pressure, then made to volume on a moving net, using a pair of heating embossing rolls, surface temperature was 210 ° C, linear pressure was 60 kg / cm, and weight was applied. 260 g
A nonwoven fabric having a thickness of / m 2 and a thickness of 0.6 mm was obtained. The average depth of the depressions on the surface of the non-woven fabric was front / back = 70/65 μm.
【００２９】毛羽立ち特性は、Ｃ級と実施例に比べ悪
く、また表を濾過面として評価したエアーフィルター性
能においても払落約１５０回で使用限界に達し、満足い
くエアーフィルター寿命が得られなかった。結果を図
１、表１に示す。The fluffing property was inferior to that of the example, which was C grade, and the air filter performance evaluated by using the table as the filtering surface reached the use limit after about 150 times of removal, and a satisfactory air filter life could not be obtained. . The results are shown in Fig. 1 and Table 1.
【００３０】[0030]
【表１】 [Table 1]
【００３１】[0031]
【発明の効果】本発明のエアーフィルター用不織布は、
たとえば、集塵機用フィルター等において、粉塵との衝
突、あるいはフィルター内部支持体である金網等により
擦過して発生するフィルター基材の毛羽立ちを抑制し、
かつパルスジェット後の粉塵離脱性を向上させること
で、高寿命のエアーフィルターを提供することができ
る。The nonwoven fabric for air filters of the present invention is
For example, in a dust collector filter or the like, fluffing of the filter base material caused by collision with dust or rubbing with a wire mesh or the like as a filter internal support is suppressed,
Moreover, by improving the dust detachability after the pulse jet, a long-life air filter can be provided.
【図１】 この図は、実施例、比較例の粉塵負荷量と払
落回数との関係を示すグラフである。FIG. 1 is a graph showing the relationship between the dust load amount and the number of times of cleaning in Examples and Comparative Examples.
Claims (7)
ＩＳ Ｂ０６０１に準じて求められる該圧着部のくぼみ
の平均深さが６０μｍ以下であることを特徴とするエア
ーフィルター用不織布。1. A partially crimped nonwoven fabric comprising J
A nonwoven fabric for an air filter, characterized in that the average depth of the depressions in the crimped portion, which is determined according to IS B0601, is 60 μm or less.
である請求項１記載のエアーフィルター用不織布。2. The nonwoven fabric for an air filter according to claim 1, wherein the basis weight of the nonwoven fabric is 100 g / m 2 or more.
ある請求項１記載のエアーフィルター用不織布。3. The nonwoven fabric for an air filter according to claim 1, wherein the nonwoven fabric has a bending resistance of 500 mg or more.
ル系芯鞘型複合フィラメントである請求項１記載のエア
ーフィルター用不織布。4. The non-woven fabric for an air filter according to claim 1, wherein the fibers constituting the non-woven fabric are polyester-sheath type composite filaments.
トが、鞘成分が芯成分に対し２０℃以上低い融点を有す
る共重合ポリエステルからなる請求項４記載のエアーフ
ィルター用不織布。5. The non-woven fabric for an air filter according to claim 4, wherein the polyester core-sheath type composite filament is made of a copolyester having a sheath component having a melting point lower than that of the core component by 20 ° C. or more.
３０重量％を占めるものである請求項４〜５のいずれか
に記載のエアーフィルター用不織布。6. The sheath component comprises 5 to 5 of the composite filament.
The nonwoven fabric for an air filter according to any one of claims 4 to 5, which accounts for 30% by weight.
フィルター用不織布を、エアーフィルター装置のフィル
ター部材として使用したことを特徴とするエアーフィル
ター装置。7. An air filter device, wherein the nonwoven fabric for an air filter according to any one of claims 1 to 6 is used as a filter member of an air filter device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP728296A JP3339283B2 (en) | 1996-01-19 | 1996-01-19 | Non-woven fabric for air filter and air filter device using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP728296A JP3339283B2 (en) | 1996-01-19 | 1996-01-19 | Non-woven fabric for air filter and air filter device using the same |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1216699A Division JP3799854B2 (en) | 1999-01-20 | 1999-01-20 | Air filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09192426A true JPH09192426A (en) | 1997-07-29 |
| JP3339283B2 JP3339283B2 (en) | 2002-10-28 |
Family
ID=11661688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP728296A Expired - Lifetime JP3339283B2 (en) | 1996-01-19 | 1996-01-19 | Non-woven fabric for air filter and air filter device using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3339283B2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999013150A1 (en) * | 1997-09-11 | 1999-03-18 | Toray Industries, Inc. | Fabric |
| JP2009029145A (en) * | 2008-11-13 | 2009-02-12 | Nitto Denko Corp | Ink cartridge |
| JP2011140243A (en) * | 2011-04-25 | 2011-07-21 | Nitto Denko Corp | Ink cartridge |
| JP2015508719A (en) * | 2012-02-03 | 2015-03-23 | アールストローム コーポレイション | Gypsum board suitable for wet or wet areas |
| US9011567B2 (en) | 2010-07-06 | 2015-04-21 | Toyobo Co., Ltd. | Spunbonded nonwoven fabric and filter using same |
| WO2021132402A1 (en) * | 2019-12-23 | 2021-07-01 | 東レ株式会社 | Spun-bonded nonwoven fabric, filter laminate filter material, filter material for dust collector pleated filter, dust collector pleated filter, and medium-air-volume pulse-jet type dust collector |
| WO2021132409A1 (en) * | 2019-12-23 | 2021-07-01 | 東レ株式会社 | Spunbond nonwoven fabric for filters, filter medium for powder-coated filters, and powder-coated filter |
| WO2021132410A1 (en) * | 2019-12-23 | 2021-07-01 | 東レ株式会社 | Spunbond nonwoven fabric, filter media for dust-collector pleated filter, dust collector pleated filter, and large air-blast pulse-jet-type dust collector |
| WO2021132403A1 (en) * | 2019-12-23 | 2021-07-01 | 東レ株式会社 | Spun-bonded nonwoven fabric, filter media for dust collector pleated filter, dust collector pleated filter, and high-airflow pulse-jet dust collector |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54124370A (en) * | 1978-03-22 | 1979-09-27 | Toray Ind Inc | High-strength unwoven filter cloth and its manufacturing method |
| JPH0568823A (en) * | 1991-09-10 | 1993-03-23 | Toray Ind Inc | Filter medium |
| JPH0760033A (en) * | 1993-08-25 | 1995-03-07 | Toyobo Co Ltd | Filter medium of filter |
| JPH07256026A (en) * | 1994-03-23 | 1995-10-09 | Japan Vilene Co Ltd | Filter medium for air filter |
-
1996
- 1996-01-19 JP JP728296A patent/JP3339283B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54124370A (en) * | 1978-03-22 | 1979-09-27 | Toray Ind Inc | High-strength unwoven filter cloth and its manufacturing method |
| JPH0568823A (en) * | 1991-09-10 | 1993-03-23 | Toray Ind Inc | Filter medium |
| JPH0760033A (en) * | 1993-08-25 | 1995-03-07 | Toyobo Co Ltd | Filter medium of filter |
| JPH07256026A (en) * | 1994-03-23 | 1995-10-09 | Japan Vilene Co Ltd | Filter medium for air filter |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999013150A1 (en) * | 1997-09-11 | 1999-03-18 | Toray Industries, Inc. | Fabric |
| JP2009029145A (en) * | 2008-11-13 | 2009-02-12 | Nitto Denko Corp | Ink cartridge |
| US9011567B2 (en) | 2010-07-06 | 2015-04-21 | Toyobo Co., Ltd. | Spunbonded nonwoven fabric and filter using same |
| JP2011140243A (en) * | 2011-04-25 | 2011-07-21 | Nitto Denko Corp | Ink cartridge |
| JP2015508719A (en) * | 2012-02-03 | 2015-03-23 | アールストローム コーポレイション | Gypsum board suitable for wet or wet areas |
| WO2021132409A1 (en) * | 2019-12-23 | 2021-07-01 | 東レ株式会社 | Spunbond nonwoven fabric for filters, filter medium for powder-coated filters, and powder-coated filter |
| WO2021132402A1 (en) * | 2019-12-23 | 2021-07-01 | 東レ株式会社 | Spun-bonded nonwoven fabric, filter laminate filter material, filter material for dust collector pleated filter, dust collector pleated filter, and medium-air-volume pulse-jet type dust collector |
| WO2021132410A1 (en) * | 2019-12-23 | 2021-07-01 | 東レ株式会社 | Spunbond nonwoven fabric, filter media for dust-collector pleated filter, dust collector pleated filter, and large air-blast pulse-jet-type dust collector |
| WO2021132403A1 (en) * | 2019-12-23 | 2021-07-01 | 東レ株式会社 | Spun-bonded nonwoven fabric, filter media for dust collector pleated filter, dust collector pleated filter, and high-airflow pulse-jet dust collector |
| CN114829691A (en) * | 2019-12-23 | 2022-07-29 | 东丽株式会社 | Spun-bonded nonwoven fabric, filter material for dust collector pleated filter, and large-air-volume pulse jet type dust collector |
| CN114867897A (en) * | 2019-12-23 | 2022-08-05 | 东丽株式会社 | Spunbonded nonwoven fabric, filter laminated filter medium, filter medium for dust collector pleated filter, and medium-stroke pulse jet type dust collector |
| EP4083295A4 (en) * | 2019-12-23 | 2023-06-14 | Toray Industries, Inc. | Spun-bonded nonwoven fabric, filter laminate filter material, filter material for dust collector pleated filter, dust collector pleated filter, and medium-air-volume pulse-jet type dust collector |
| CN114867897B (en) * | 2019-12-23 | 2023-07-21 | 东丽株式会社 | Spun-bonded nonwoven fabric, filter laminated filter medium, pleated filter, and dust collector |
| CN114829691B (en) * | 2019-12-23 | 2024-02-02 | 东丽株式会社 | Filter medium for spun-bonded nonwoven fabric and dust collector pleated filter, and filter and dust collector |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3339283B2 (en) | 2002-10-28 |
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