JPH09308679A - Adsorptive material - Google Patents
Adsorptive materialInfo
- Publication number
- JPH09308679A JPH09308679A JP8150315A JP15031596A JPH09308679A JP H09308679 A JPH09308679 A JP H09308679A JP 8150315 A JP8150315 A JP 8150315A JP 15031596 A JP15031596 A JP 15031596A JP H09308679 A JPH09308679 A JP H09308679A
- Authority
- JP
- Japan
- Prior art keywords
- woven fabric
- activated carbon
- carbon particles
- adsorbent
- nonwoven fabric
- 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
- Separation Of Gases By Adsorption (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は吸着材に関するもの
で主として空気中の微量の悪臭成分を除去するために使
用され、吸着速度が早く取扱性に優れた吸着材である。
主な用途分野は、家庭用もしくは自動車用のエアーコン
ディショナー及び、空気清浄機用に使用されるフィルタ
ーエレメントで、低圧損、高寿命の特徴を有し高速で空
気を流した場合にも１パスで高い浄化度を達成できる。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adsorbent, which is mainly used for removing a trace amount of malodorous components in the air and has a fast adsorption rate and excellent handleability.
The main fields of application are filter elements used for home or automobile air conditioners and air purifiers, which have the characteristics of low pressure loss and long life, and even with high-speed air flow, one pass A high degree of purification can be achieved.
【０００２】[0002]
【従来の技術】従来から微量成分の吸着材として活性炭
が広く使用されているが、形状は一般に粉体または粒状
で必ずしも取扱い易いとは言い難い。そこで活性炭微粉
末を分散したエマルジョンをネット材、織物、不織布等
に含浸させた吸着材や、活性炭粒子をネット材、フォー
ム材、不織布等の多孔性物質中に固定させた吸着材が試
みられている。これらの吸着材は、粉体の様に粉塵が発
生するおそれがないので取扱いが便利であり、しかもガ
スは多孔性物質中の空隙を自由に流通し得るので、抵抗
が少ないという利点もある。2. Description of the Related Art Conventionally, activated carbon has been widely used as an adsorbent for trace components, but it is difficult to say that the shape is generally powdery or granular and easy to handle. Therefore, an adsorbent in which an emulsion in which fine powder of activated carbon is dispersed is impregnated in a net material, a woven fabric, a non-woven fabric or the like, or an adsorbent in which activated carbon particles are fixed in a porous material such as a net material, a foam material or a non-woven fabric is tried. There is. These adsorbents are convenient to handle because they do not generate dust unlike powders, and also have the advantage of low resistance because the gas can freely flow through the voids in the porous material.
【０００３】しかしながら従来からつくられているこれ
らのタイプの吸着材は、多孔性物質に含有されている活
性炭の表面がバインダーで被覆されているため、吸着能
力のごく一部しか使用できないデメリットが指摘されて
いた。これは多孔性物質内部の組織に活性炭を接着させ
る場合、活性炭とバインダーを混合して接着すると、活
性炭粒子表面の大部分がバインダ−層で被覆されること
は避けられないからである。However, these types of adsorbents that have been conventionally produced have the disadvantage that only a small part of their adsorption capacity can be used because the surface of the activated carbon contained in the porous material is coated with a binder. It had been. This is because when the activated carbon is adhered to the internal structure of the porous material, if the activated carbon and the binder are mixed and adhered, it is inevitable that most of the surface of the activated carbon particles is covered with the binder layer.
【０００４】また、ポリウレタンフォームを生成させる
時、プレポリマーに吸着体粒子を混合して調製する方法
もある。この場合はかなり多量の活性炭粒子を混合する
と、ポリウレタンフォームの発泡性が抑制されると共
に、活性炭粒子の表面のかなり多くの部分がポリウレタ
ン樹脂で被覆されたり、或いは細孔が目詰まりするため
吸着能力が大幅に低下する。There is also a method of preparing a polyurethane foam by mixing adsorbent particles with a prepolymer. In this case, if a large amount of activated carbon particles are mixed, the foamability of polyurethane foam will be suppressed, and a considerably large part of the surface of the activated carbon particles will be covered with polyurethane resin, or the pores will be clogged and the adsorption capacity will be increased. Is significantly reduced.
【０００５】またこれらの問題点を解決するため、発泡
ポリウレタン成型体の表面及び内部組織の外気との接触
面にバインダー層を形成させた後、吸着材粒子を付着す
る方法も開示されている。特公平 4-35201号公報には、
発泡ポリウレタン成型体の表面及び内部組織の上にウレ
タン系プレポリマーを塗布した後、吸着材粒子を吹き付
けて付着させる方法が開示されている。In order to solve these problems, a method of forming adsorbent particles after forming a binder layer on the surface of the foamed polyurethane molding and on the contact surface of the internal structure with the outside air is also disclosed. In Japanese Patent Publication No. 4-35201,
A method is disclosed in which a urethane-based prepolymer is applied on the surface and internal structure of a foamed polyurethane molded article, and then adsorbent particles are sprayed and attached.
【０００６】活性炭微粉末を分散したエマルジョンを不
織布、目が荒い織物、網目状ネット等に含浸させた吸着
材は、微粉末の表面がエマルジョンの薄い皮膜でコート
されるため、圧損失は低下しても充分な吸着性能が得ら
れないデメリットがある。An adsorbent obtained by impregnating a non-woven fabric, a woven fabric having a coarse mesh, a mesh net or the like with an emulsion in which fine powder of activated carbon is dispersed is coated with a thin film of the emulsion on the surface of the fine powder, so that the pressure loss is reduced. However, there is a demerit that sufficient adsorption performance cannot be obtained.
【０００７】[0007]
【本発明が解決しようとする課題】本発明はこれらの問
題点にかんがみ、吸着材の基材として通気性が良好な不
織布または不織布成型体を利用して、これに粒子表面の
１部が露出している状態の活性炭粒子を接着させること
によって、圧損失が低く且つ吸着性が高い吸着材を開発
して提供しようとするものである。In view of these problems, the present invention uses a non-woven fabric or a non-woven fabric molding having good air permeability as a base material of an adsorbent, and a part of the particle surface is exposed to this. By adhering activated carbon particles in the state of being adsorbed, an adsorbent having low pressure loss and high adsorbability is developed and provided.
【０００８】[0008]
【課題を解決するための手段】本発明者等は激しい乱気
流状態のガスが、充填密度が低い吸着剤層を通過すると
きには、ガスと吸着剤との接触効率が著しく高められて
悪臭ガスの除去性能が向上するため、圧損失が低く高風
量のガス処理に適した構造となることに着目した。この
ため通気性が良好な不織布または不織布成型体を基材と
して、その内部に吸着剤粒子があたかも空間に浮遊して
いるような状態で保持させ、通気性を阻害する度合いを
極力低下させる構造について研究した。その結果、通気
性が良好な不織布または不織布成型体に活性炭粒子をバ
インダーで点接着させることにより、吸着剤粒子が吸着
材の内部で適度な空隙率を保持した状態とすることがで
きることを見出し、これに基づいて本発明に到達した。The inventors of the present invention have found that when a gas in a severe turbulent air flow passes through an adsorbent layer having a low packing density, the contact efficiency between the gas and the adsorbent is remarkably enhanced and the malodorous gas is removed. We paid attention to the fact that the structure is suitable for gas processing with low pressure loss and high air flow rate because the performance is improved. Therefore, for a structure that uses a non-woven fabric or a non-woven fabric molded body with good air permeability as a base material and holds the adsorbent particles as if they were floating in the space, reducing the degree of impairing air permeability as much as possible. Researched. As a result, it was found that by adhering the activated carbon particles to the nonwoven fabric or nonwoven fabric molding having good air permeability with a binder, the adsorbent particles can be in a state of holding an appropriate porosity inside the adsorbent, Based on this, the present invention has been reached.
【０００９】すなわち、通気性が良好な不織布または不
織布成型体の表面及び内部組織の外気との接触面に、ラ
テックス或いはエマルジョンまたは溶媒を含まないポリ
マー系接着剤からなるバインダー層を形成させ、該バイ
ンダー層に活性炭粒子を接着せしめ粒子表面の少なくと
も一部を露出された状態に保持せしめてなる吸着材であ
る。または更に該不織布または不織布成型体の表面にこ
れらのバインダーのコート層を形成せしめてなる吸着材
であり、更に活性炭粒子を担持させた該不織布または不
織布成型体とエレクトレット処理した不織布を重ね合わ
せ、要すればプリーツ状に成型した吸着材も本発明に含
まれている。That is, a binder layer made of a polymer adhesive containing no latex, emulsion, or solvent is formed on the surface of a nonwoven fabric or a nonwoven fabric molded article having good air permeability and the surface of the internal tissue in contact with the outside air. It is an adsorbent obtained by adhering activated carbon particles to a layer and holding at least a part of the particle surfaces in an exposed state. Alternatively, it is an adsorbent obtained by further forming a coating layer of these binders on the surface of the non-woven fabric or the non-woven fabric, further laminating the non-woven fabric or activated non-woven fabric carrying the activated carbon particles and the non-woven fabric treated with electret, If so, a pleated adsorbent is also included in the present invention.
【００１０】または不織布及び不織布成型体からなる多
孔性シートの表面及び内部組織の外気との接触面を溶融
させ、溶融層に活性炭粒子を接着せしめ粒子表面の一部
が露出された状態に保持されている吸着材である。前述
の様にして得られた吸着材は自動車に搭載するエアーコ
ンディショナーまたは空気清浄器用に好適である。Alternatively, the surface of the porous sheet composed of the nonwoven fabric and the nonwoven fabric molded body and the contact surface of the internal tissue with the outside air are melted, and the activated carbon particles are adhered to the molten layer so that a part of the particle surface is kept exposed. Is an adsorbent. The adsorbent obtained as described above is suitable for an air conditioner or an air purifier mounted on an automobile.
【００１１】更に、通気性が良好な不織布または不織布
成型体の表面及び内部組織の外気との接触面に、バイン
ダー層を形成させた後シートを活性炭粒子の流動層中を
通過させることにより、該不織布または不織布成型体の
表面及び内部組織の外気との接触面に活性炭粒子を接着
させ、粒子表面の少なくとも一部が露出された状態に保
持させることを特徴とする吸着材の製法である。Further, a binder layer is formed on the surface of the non-woven fabric or the non-woven fabric having good air permeability and on the contact surface of the internal structure with the outside air, and then the sheet is passed through a fluidized bed of activated carbon particles, This is a method for producing an adsorbent, characterized in that activated carbon particles are adhered to the surface of a non-woven fabric or a non-woven fabric molded body and the contact surface of the internal tissue with the outside air, and at least part of the surface of the particles is held exposed.
【００１２】ここで、不織布成型体とは太い繊維を粗に
包絡させて少なくとも一部の繊維と繊維の接合点を融着
させ、三次元構造を有する通気性が良好な成型体を形成
させたもので、例えば、図１に示す様な繊維構造を有す
る成型体である。以下本発明について詳しく説明する。[0012] Here, a thick fiber is roughly enveloped with the non-woven fabric molded body to fuse at least some of the fibers and the joint points of the fibers to form a molded body having a three-dimensional structure and good air permeability. For example, it is a molded product having a fiber structure as shown in FIG. Hereinafter, the present invention will be described in detail.
【００１３】本発明の吸着材には基材として通気性が良
好な不織布または不織布成型体を使用する必要がある。
不織布及び不織布成型体を構成する繊維の材質は特に限
定しない。例えばポリエチレン、ポリプロピレン、ポリ
ウレタン、ナイロン、ポリエステル、ポリ塩化ビニル、
ポリ塩化ビニリデン、フッ素樹脂、ビニロン、ポリアク
リル系ポリマー、酢酸セルローズ、プロミックス等の合
成繊維、半合成繊維、その他レイヨン、綿、麻、絹等の
天然繊維或いは無機繊維も使用可能である。更に不織布
及び不織布成型体の材質は繊維に限定されず、細いアル
ミニウム線からなる不織布でもよい。For the adsorbent of the present invention, it is necessary to use a non-woven fabric or a non-woven fabric molding having good air permeability as a base material.
The material of the fibers forming the non-woven fabric and the non-woven fabric molding is not particularly limited. For example, polyethylene, polypropylene, polyurethane, nylon, polyester, polyvinyl chloride,
It is also possible to use synthetic fibers such as polyvinylidene chloride, fluororesin, vinylon, polyacrylic polymers, cellulose acetate, Promix and the like, semi-synthetic fibers, and other natural fibers such as rayon, cotton, hemp, silk or inorganic fibers. Further, the material of the non-woven fabric and the non-woven fabric molded body is not limited to fibers, and may be a non-woven fabric made of thin aluminum wire.
【００１４】また、基材である不織布または不織布成型
体を構成する個々の繊維の構造は単一成分からなる繊維
のみに限定されず、例えば、芯がポリプロピレンで鞘が
ポリエチレンのコーティング層からなる芯−鞘繊維でも
よく、その他の構造を有する複合繊維でもよい。繊維の
太さは特に限定しないが20〜300 デニルが好ましい。Further, the structure of the individual fibers constituting the non-woven fabric or the non-woven fabric molding which is the base material is not limited to the fibers consisting of a single component, for example, the core consisting of a polypropylene core and the sheath consisting of a polyethylene coating layer. -Sheath fibers may be used, or composite fibers having other structures may be used. The thickness of the fiber is not particularly limited, but 20 to 300 denier is preferable.
【００１５】合成繊維等の断面形状は通常円形が最も広
く使用されているが、本発明では円形に限定せず異形断
面糸を使用してもよい。この場合繊維の表面積が通常の
円形断面糸より広くなるため、活性炭粒子を表面に接着
させて担持させるためには担持量及び接着強度の点から
もより好ましい。The cross-sectional shape of synthetic fibers and the like is usually most widely circular, but the present invention is not limited to the circular shape, and a modified cross-section yarn may be used. In this case, since the surface area of the fiber is larger than that of the ordinary circular cross-section yarn, it is more preferable from the viewpoint of the amount to be carried and the adhesive strength to carry the activated carbon particles by adhering to the surface.
【００１６】不織布の構造は特に限定せず、通気性が良
好となる様な粗な組織であればいずれでもよく、前記の
繊維を粗に包絡させた後接着剤或いは繊維の部分的な溶
融により、または機械的方法で接合点を連結して固定し
た構造でもよい。特に、不織布の組織内部で繊維が交差
する部分を融着し、不織布の構造の安定性及び強度を高
めた基材は好ましい。本発明において不織布成型体とは
太い繊維を粗に包絡させて少なくとも一部の繊維と繊維
の接合点を融着させ、三次元構造を有する通気性が良好
な成型体を形成させたもので、例えば、図１に示す様な
繊維構造を有する成型体である。The structure of the non-woven fabric is not particularly limited as long as it has a rough structure so that the air permeability is good, and after the fibers are roughly enveloped, the adhesive or the fibers are partially melted. Alternatively, the structure may be such that the joining points are connected and fixed by a mechanical method. In particular, a base material in which the portions where the fibers intersect inside the structure of the nonwoven fabric is fused to enhance the stability and strength of the structure of the nonwoven fabric is preferable. In the present invention, the non-woven fabric molded product is one in which thick fibers are roughly enveloped to fuse at least some of the fibers and the bonding points of the fibers to form a molded product having a three-dimensional structure and good air permeability, For example, it is a molded product having a fiber structure as shown in FIG.
【００１７】本発明の吸着材に含まれている活性炭は、
通常１ｇ当たり数百平方メートル或いはそれ以上の大き
な表面積を有し、高い吸着性を示す炭素材料であれば広
範囲に使用できる。活性炭の原料には通常ヤシ殻または
木材等の炭化物或いは石炭が使用されるが何れでもよ
い。また賦活法も水蒸気或いは二酸化炭素により高温で
または塩化亜鉛、リン酸、濃硫酸処理等いづれの方法に
より得られたものでも良い。The activated carbon contained in the adsorbent of the present invention is
Generally, a carbon material having a large surface area of several hundred square meters per gram or more and having a high adsorptivity can be widely used. As a raw material for the activated carbon, a charcoal such as coconut shell or wood or coal is usually used, but any may be used. Also, the activation method may be obtained by steam or carbon dioxide at a high temperature or by any method such as treatment with zinc chloride, phosphoric acid or concentrated sulfuric acid.
【００１８】活性炭は無極性吸着剤として極めて優れた
吸着性を有する特異な物質で、殆どすべてのガス状或い
は液状物質に対して高い吸着性を示すことが知られてい
る。本発明の吸着材も活性炭のこの様な性質を利用した
ものである。Activated carbon is a peculiar substance having extremely excellent adsorptivity as a non-polar adsorbent, and is known to exhibit high adsorptivity for almost all gaseous or liquid substances. The adsorbent of the present invention also utilizes such characteristics of activated carbon.
【００１９】不織布または不織布成型体に担持させる活
性炭粒子の大きさは特に限定せず、広範囲の粒度の粒子
を使用した場合にもその効果が認められる。しかし吸着
容量を高く保持すると共に圧損失を抑制するためには、
粒子の平均粒径は 20 mesh以下、100 mesh以上が好まし
い。The size of the activated carbon particles supported on the nonwoven fabric or the nonwoven fabric molded product is not particularly limited, and the effect can be recognized even when particles having a wide range of particle sizes are used. However, in order to keep the adsorption capacity high and suppress pressure loss,
The average particle size of the particles is preferably 20 mesh or less and 100 mesh or more.
【００２０】本発明において、不織布または不織布成型
体に活性炭粒子を接着させるためには、ラテックス或い
はエマルジョンまたは溶媒を含まないポリマー系接着剤
を使用する必要がある。尚、活性炭粒子の細孔の目詰ま
りを生じ難いものが好ましいため、ラテックス或いはエ
マルジョンは固形成分が多いものが適しており、固形成
分は 30 ％以上が好ましく、50％以上がより好ましい。In the present invention, in order to adhere the activated carbon particles to the non-woven fabric or the non-woven fabric molded product, it is necessary to use a latex or emulsion or a solvent-free polymer adhesive. Since it is preferable that the activated carbon particles are less likely to be clogged with pores, a latex or emulsion having a large solid content is suitable, and the solid content is preferably 30% or more, more preferably 50% or more.
【００２１】ここで、ラテックス或いはエマルジョンと
は分散媒である水中に、ゴム系粒子或いは接着性を有す
るポリマー粒子が分散された状態を指している。ラテッ
クスとしては SBR、クロロプレン、ニトリルゴム等各種
合成ゴム系のラテックスが挙げられ、また、エマルジョ
ンとしてはアクリル酸エステルとアクリル酸或いは、メ
タクリル酸エステルを共重合させたアクリル系エマルジ
ョン、エチレンー酢酸ビニル共重合樹脂エマルジョン或
いは酢酸ビニル樹脂エマルジョン等が使用できる。Here, the latex or emulsion means a state in which rubber particles or polymer particles having adhesiveness are dispersed in water as a dispersion medium. Examples of latex include various synthetic rubber latex such as SBR, chloroprene, nitrile rubber, and emulsions include acrylic emulsion obtained by copolymerizing acrylic ester and acrylic acid or methacrylic ester, and ethylene-vinyl acetate copolymer. A resin emulsion or a vinyl acetate resin emulsion can be used.
【００２２】溶媒を含まないポリマー系接着剤として
は、有機溶媒または水を含まない、接着性を有するプレ
ポリマー等で、本発明の接着剤には合成ゴム系の物質が
好ましく、例えば、NCO 過剰のウレタン系プレポリマ
ー、より好ましくは MDI（メチレンジイソシアネート）
ベースのウレタン系プレポリマーが好ましい。 MDIベー
スのプレポリマーは、 TDI（トリレンジイソシアネー
ト）ベースのプレポリマーより遊離イソシアネートが発
生し難く、吸着体粒子への吸着性が少ないため好まし
い。The solvent-free polymer adhesive is a prepolymer or the like which does not contain an organic solvent or water and has adhesive properties. The adhesive of the present invention is preferably a synthetic rubber-based substance, for example, an NCO excess. Urethane type prepolymer of, more preferably MDI (methylene diisocyanate)
Base urethane prepolymers are preferred. MDI-based prepolymers are preferable because they are less likely to generate free isocyanate than TDI (tolylene diisocyanate) -based prepolymers and have less adsorptivity to adsorbent particles.
【００２３】NCO 過剰のウレタン系プレポリマーを使用
する場合、粘度を調節するために場合によっては少量の
有機溶剤を加えて、不織布または不織布成型体に含浸或
いは塗布した後、温風乾燥等により大部分の有機溶剤を
除去して、この織物の表面及び内部組織の繊維表面にバ
インダー層を形成させ、その上に活性炭粒子を接着させ
てもよい。When an NCO-excessive urethane-based prepolymer is used, a small amount of an organic solvent may be added in order to adjust the viscosity, and after impregnating or coating the non-woven fabric or the non-woven fabric molded body with a warm air drying or the like. A part of the organic solvent may be removed to form a binder layer on the surface of the woven fabric and the fiber surface of the internal structure, and the activated carbon particles may be adhered thereon.
【００２４】[0024]
【発明の実施の形態】本発明の吸着材の基材である不織
布または不織布成型体の表面及び内部組織の外気との接
触面には、前述のバインダーからなるバインダー層を形
成させる必要がある。不織布の組織にバインダーを付着
させるには、不織布または不織布成型体をラテックスま
たはエマルジョン等のバインダーを満たした浴に浸漬し
た後、過剰のバインダーをロールで除去する方法、或い
はスプレーやコーターで表面に塗布した後、ロールで絞
り付着しているバインダーを組織の内部まで浸透させる
方法等がある。更に、エアーブローして包絡した繊維間
に生成した皮膜を除去した後乾燥させることによって、
不織布の表面及び内部の繊維組織の外気との接触面にバ
インダー層を形成させることができる。BEST MODE FOR CARRYING OUT THE INVENTION It is necessary to form a binder layer made of the above-mentioned binder on the surface of the nonwoven fabric or the nonwoven fabric molding which is the base material of the adsorbent of the present invention and the contact surface of the internal tissue with the outside air. To attach the binder to the structure of the non-woven fabric, the non-woven fabric or the non-woven fabric molded body is immersed in a bath filled with a binder such as latex or emulsion and then the excess binder is removed with a roll, or it is applied to the surface with a spray or coater. After that, there is a method of squeezing with a roll and allowing the adhered binder to penetrate into the inside of the tissue. Furthermore, by removing the film formed between the fibers that have been enveloped by air blowing and then drying,
A binder layer can be formed on the surface of the non-woven fabric and on the surface of the internal fiber structure that contacts the outside air.
【００２５】活性炭粒子を、バインダー層が形成されて
いる不織布または不織布成型体の表面及び内部組織の外
気との接触面に接着させるには、流動層通過法或いは粉
体スプレー法、篩落下法等適宜の方法を採用することが
できる。To bond the activated carbon particles to the surface of the non-woven fabric or the non-woven fabric formed with the binder layer and the contact surface of the internal tissue with the outside air, a fluidized bed passage method, a powder spray method, a sieve dropping method or the like is used. An appropriate method can be adopted.
【００２６】流動層通過法は組織内部にバインダー層を
形成せしめた不織布または不織布成型体を、活性炭粒子
の流動層の中を通常はシートを水平にして通過させるこ
とにより、シートの組織の内部に粒子を浸透させる方法
である。流動層は活性炭粒子を一定の深さに充填した槽
に、下部の分散板を通してガスを吹き込んで流動層を形
成させるが、ガスの吹込速度は最小流動化速度に比較的
近いガス速度領域で、不織布シートを通過させた場合に
も、粒子はシートの組織の内部に均等に浸透させること
ができる特徴がある。In the fluidized bed passage method, a non-woven fabric or a non-woven fabric molded body having a binder layer formed inside the tissue is passed inside a fluidized bed of activated carbon particles, usually with the sheet horizontal, so that the inside of the tissue of the sheet is This is a method of permeating particles. In the fluidized bed, a tank filled with activated carbon particles to a certain depth is blown with gas through a lower dispersion plate to form a fluidized bed, but the gas blowing rate is in a gas velocity region relatively close to the minimum fluidization rate, Even when the particles pass through the non-woven sheet, the particles are characterized in that they can be uniformly penetrated into the inside of the tissue of the sheet.
【００２７】その他の方法では大部分の粒子が不織布シ
ートの表面にのみに付着し易く、充分に内部まで浸透さ
せ付着させることは困難である。しかし流動層通過法は
流動状態を活性炭粒子の粒度に合わせてガス吹込速度に
よって適度に調節し、更にシートの流動層内の滞留時間
を調節することにより、シートの内部組織に活性炭粒子
を均一に付着させることができるため、本発明の吸着材
の粒子付着工程に最も適している。According to other methods, most of the particles tend to adhere only to the surface of the non-woven fabric sheet, and it is difficult to sufficiently permeate and adhere to the inside. However, in the fluidized bed passage method, the fluidized state is adjusted appropriately according to the particle size of the activated carbon particles by the gas blowing rate, and the residence time in the fluidized bed of the sheet is adjusted to make the activated carbon particles uniform in the internal structure of the sheet. Since it can be attached, it is most suitable for the particle attaching step of the adsorbent of the present invention.
【００２８】粉体スプレー法或いは篩落下法の場合に
は、不織布シートを適宜反転させて、シートの両側から
活性炭粒子を吹き付け、または粒子を落下させることに
より、組織の内部にまで粒子を付着させることができ
る。更に、シートに活性炭粒子を付着させる工程或いは
付着させた後、このネットを振動させることによって、
組織内部への粒子の進入及びバインダー層への付着を促
進させることができる。In the case of the powder spray method or the sieve dropping method, the non-woven fabric sheet is appropriately inverted and the activated carbon particles are sprayed from both sides of the sheet, or the particles are dropped to adhere the particles to the inside of the tissue. be able to. Further, by vibrating this net after the step of attaching the activated carbon particles to the sheet or after attaching it,
Entry of particles into the tissue and adhesion to the binder layer can be promoted.
【００２９】不織布のシートに活性炭粒子を付着させた
後、一組または複数組のピンチ・ロールの間を通してシ
ートを軽く圧迫することにより、粒子をバインダー層に
強固に接着させることができる。この際ロールの１部或
いは全部に加熱ロールを使用して、接着を促進させるこ
ともできる。After the activated carbon particles are adhered to the non-woven sheet, the particles can be firmly adhered to the binder layer by gently pressing the sheet through one or more sets of pinch rolls. At this time, a heating roll may be used for a part or all of the rolls to promote the adhesion.
【００３０】前記の様にして得られた不織布シートに含
まれる活性炭粒子は、流動層通過法等によって一旦その
内部組織のバインダー層の表面に付着された後、加熱圧
着工程によって強固にバインダー層に接着されるため、
粒子表面のかなり多くの部分が露出した状態となってい
る。本発明において「粒子表面の少なくとも一部が露出
された状態」とはかかる状態を指しており、活性炭粒子
がバインダー層に接着されている状態より分かる様に、
実質的には粒子表面の大部分が露出された状態に保持さ
れている。これは本発明の吸着材の構造の最も大きな特
徴の一つである。The activated carbon particles contained in the non-woven fabric sheet obtained as described above are once adhered to the surface of the binder layer having the internal structure thereof by a fluidized bed passage method or the like, and then firmly bonded to the binder layer by a thermocompression bonding process. Because it is glued
A large part of the particle surface is exposed. In the present invention, "a state in which at least a part of the particle surface is exposed" refers to such a state, as can be seen from the state in which the activated carbon particles are bonded to the binder layer,
Substantially most of the particle surface is kept exposed. This is one of the most important features of the structure of the adsorbent of the present invention.
【００３１】従来活性炭粒子を担体に担持させる場合、
主として粒子をラテックスまたはエマルジョン等のバイ
ンダーと混合して塗布する方法が用いられた。この方法
では活性炭粒子の表面がバインダーで被覆されているた
め、活性炭の吸着性が阻害されることが避けられなかっ
た。しかし前述の様に本発明で得られた多孔性シート
は、大部分の活性炭粒子の表面が露出した状態となって
いるため、個々の活性炭粒子の吸着容量が大きく吸着速
度も高い特徴がある。しかも不織布のシートは全体が粗
な組織になっているため、ガスの流通路の断面積はかな
り大きく、従って圧損失は低く高速でガスを流した場
合、ガスは吸着材内部を激しい乱流となって流れる状態
になる。Conventionally, when supporting activated carbon particles on a carrier,
A method in which the particles are mainly mixed with a binder such as latex or emulsion and then applied is used. In this method, since the surface of the activated carbon particles is coated with the binder, it is inevitable that the adsorptivity of the activated carbon is hindered. However, as described above, the porous sheet obtained by the present invention is characterized in that the surface of most of the activated carbon particles is exposed, so that the adsorption capacity of each activated carbon particle is large and the adsorption rate is high. Moreover, the non-woven sheet has a coarse structure as a whole, so the cross-sectional area of the gas flow passage is quite large. Therefore, when the gas is flowed at a high speed with a low pressure loss, the gas will become a strong turbulent flow inside the adsorbent. It becomes a flowing state.
【００３２】不織布シートに活性炭粒子を付着させた
後、粒子をバインダー層に強固に接着させるために使用
するピンチ・ロールのクリアランスは適宜設定できる
が、シートの厚さの50〜80％が好ましい。また、ポリウ
レタン系のプレポリマー層に活性炭粒子を接着させる場
合には、加熱水蒸気処理によって接着力を更に向上させ
ることができる。After the activated carbon particles are attached to the non-woven sheet, the clearance of the pinch roll used for firmly adhering the particles to the binder layer can be appropriately set, but is preferably 50 to 80% of the sheet thickness. Further, when the activated carbon particles are adhered to the polyurethane-based prepolymer layer, the adhesive force can be further improved by heating with steam.
【００３３】不織布シートの表面に接着された粒子は、
使用中摩擦その他のため脱落し易いから、これを防止す
るためシートの表面に更にラテックス或いはエマルジョ
ンまたは溶媒を含まないポリマー系接着剤を塗布するこ
とができる。ここで表面とは外部の物体と接触して摩擦
され易い部分の意味である。The particles adhered to the surface of the nonwoven sheet are
Since it is easily removed due to friction or the like during use, a latex or emulsion or a polymer-based adhesive containing no solvent can be applied to the surface of the sheet to prevent this. Here, the surface means a portion which is easily rubbed by coming into contact with an external object.
【００３４】バインダーの種類は、不織布または不織布
成型体の組織内部に含浸させたものと必ずしも同一でな
くてもよく、その適性を考慮して異なった種類のバイン
ダーを使用してもよい。バインダーを塗布した部分の活
性炭粒子表面は、薄いバインダー層で被覆されているた
め吸着性は低下するが、被覆される表面の粒子の比率は
全体からみると一部であるから、吸着材全体の機能低下
は少ない。The type of binder does not necessarily have to be the same as the one impregnated into the inside of the tissue of the nonwoven fabric or the nonwoven fabric molded product, and different types of binders may be used in consideration of their suitability. The surface of the activated carbon particles coated with the binder is less coated because it is coated with a thin binder layer, but the ratio of the particles on the coated surface is a part of the whole, so the total amount of the adsorbent is There is little deterioration in function.
【００３５】その他バインダーを使用せず活性炭粒子を
接着せしめる方法として、不織布または不織布成型体か
らなるシートの表面及び内部組織の外気との接触面を溶
融させ、溶融層に活性炭粒子を直接接着せしめ粒子表面
の一部が露出された状態に保持させることも出来る。As another method for adhering the activated carbon particles without using a binder, the surface of the sheet made of the non-woven fabric or the non-woven fabric and the contact surface of the internal tissue with the outside air are melted, and the activated carbon particles are directly adhered to the molten layer. It is also possible to keep a part of the surface exposed.
【００３６】例えば、ポリプロピレンからなる芯にポリ
エチレンがコーティングされた鞘からなる複合繊維を、
120 °〜140 ℃に加温して、表面層のポリエチレンのみ
溶融させて活性炭粒子を接着させ、粒子表面の一部が露
出された状態に保持することが出来る。For example, a composite fiber composed of a sheath in which a core made of polypropylene is coated with polyethylene is used.
By heating to 120 ° to 140 ° C., only the polyethylene of the surface layer is melted and the activated carbon particles are adhered, so that a part of the particle surface can be kept exposed.
【００３７】更に、本発明の吸着材は一層でも使用する
ことができるが、複数枚積層またはプリーツ状にして用
いることも可能である。この際エレクトレット処理した
不織布と積層して同時に塵埃の除去性を付与することも
できる。その他、紙、不織布、導電性シート、磁気シー
ト或いは酸化触媒性シート等を重ねて成型してもよい。Further, although the adsorbent of the present invention can be used in a single layer, it is also possible to use a plurality of laminated layers or pleats. At this time, it may be laminated with an electret-treated non-woven fabric to impart dust removability at the same time. In addition, paper, non-woven fabric, a conductive sheet, a magnetic sheet, an oxidation catalyst sheet, or the like may be stacked and molded.
【００３８】本発明の吸着材は基材である通気性が良好
な不織布または不織布成型体の表面及び内部組織の外気
との接触面に、活性炭粒子を接着させたもので圧力損失
が極めて低いため、ガスの流動性が乏しい雰囲気或いは
高風量の状態で使用するために適している。更にプリー
ツ状に加工することにより、ガスの通過面積が増加する
ため一層吸着性を高めることが可能となる。本発明の吸
着材は自動車用のエアーコンディショナー或いは空気清
浄器用の脱臭材として好適である。Since the adsorbent of the present invention has activated carbon particles adhered to the surface of the non-woven fabric or non-woven fabric molding having good air permeability as the base material and the contact surface of the internal tissue with the outside air, the pressure loss is extremely low. It is suitable for use in an atmosphere in which the fluidity of gas is poor or in a state of high air flow. Further, by processing into a pleated shape, the gas passage area increases, so that the adsorptivity can be further enhanced. The adsorbent of the present invention is suitable as an air conditioner for automobiles or a deodorant for air purifiers.
【００３９】以下、実施例を挙げて本発明を更に具体的
に説明する。Hereinafter, the present invention will be described more specifically with reference to examples.
【００４０】（実施例１）ポリエステル繊維からなる目
付 40g/m2 の不織布に SBRラテックスを含浸させ、絞り
用ゴムロ−ルでラテックス目付け量を調整し、エアーブ
ローをかけることにより、不織布の内部に生成したラテ
ックスの膜を取り除き、表面及び内部組織の外面にもバ
インダー層生成させた。そのシートを椰子殻を原料とし
た粒度 20〜42 mesh に調整した破砕状活性炭粒子の流
動層の中を通過させて、活性炭粒子を不織布の表面及び
内部組織のバインダー層に付着させた。(Example 1) A nonwoven fabric made of polyester fiber and having a basis weight of 40 g / m 2 was impregnated with SBR latex, the latex basis weight was adjusted with a rubber roller for squeezing, and air blow was applied to the inside of the nonwoven fabric. The produced latex film was removed, and a binder layer was also formed on the surface and the outer surface of the internal structure. The sheet was passed through a fluidized bed of crushed activated carbon particles adjusted to a particle size of 20 to 42 mesh using coconut shell as a raw material to adhere the activated carbon particles to the surface of the nonwoven fabric and the binder layer of the internal structure.
【００４１】更に、不織布を押さえロールに通しバイン
ダー層に付着していた活性炭粒子を圧着して強固に接着
させた。過剰に付着している活性炭粒子を充分に振り落
とした後、120 ℃で乾燥して活性炭粒子を含む不織布を
得た。Further, the non-woven fabric was passed through a pressing roll, and the activated carbon particles adhering to the binder layer were pressure-bonded to firmly bond them. Excessively adhered activated carbon particles were shaken off sufficiently, and then dried at 120 ° C. to obtain a nonwoven fabric containing activated carbon particles.
【００４２】（実施例２）太いポリエステル繊維を包絡
させて三次元構造を有する不織布成型体を形成させた。
この様にして得られた厚さ５mmの不織布成型体を SBRラ
テックスに含浸させ、絞り用ゴムロ−ルでラテックス目
付け量を調整し、エアーブローをかけることにより、不
織布成型体の内部に生成したラテックスの膜を取り除
き、不織布成型体の表面及び内部組織の外面にもバイン
ダ−層生成させた。その成型体をヤシ殻を原料とした粒
度 28 〜70 mesh 調整した破砕状活性炭及び同サイズの
アニリン、リンゴ酸、鉄塩を担持させた活性炭混合物の
流動層の中を通過させて、活性炭粒子を不織布成型体の
表面及び内部組織のバインダー層に接着させた。(Example 2) A thick non-woven fabric having a three-dimensional structure was formed by enveloping thick polyester fibers.
The 5 mm-thick non-woven fabric obtained in this way was impregnated with SBR latex, the latex basis weight was adjusted with a rubber roller for squeezing, and air blow was applied to form the latex inside the non-woven fabric. The film was removed to form a binder layer on the surface of the non-woven fabric molded body and the outer surface of the internal structure. The activated carbon particles were passed through a fluidized bed of crushed activated carbon with a particle size of 28-70 mesh adjusted using coconut shell as raw material and activated carbon mixture supporting aniline, malic acid, and iron salt of the same size. The nonwoven fabric was adhered to the surface and the binder layer of the internal structure.
【００４３】更にその不織布成型体を押さえロールに通
し、バインダー層に付着していた活性炭粒子を圧着して
強固に接着させた。過剰に付着している活性炭粒子を充
分に振り落とした後、120 ℃で乾燥して活性炭粒子を含
む不織布成型体を得た。尚、本態様の吸着材の基材であ
る不織布成型体の繊維の形状を示すため図面に代わる写
真を図１に示した。Further, the nonwoven fabric molded body was passed through a pressing roll, and the activated carbon particles adhering to the binder layer were pressure-bonded to firmly bond them. The excessively adhered activated carbon particles were sufficiently shaken off, and dried at 120 ° C. to obtain a non-woven fabric molding containing activated carbon particles. A photograph as a drawing is shown in FIG. 1 in order to show the shape of the fibers of the non-woven fabric molded body which is the base material of the adsorbent of this embodiment.
【００４４】（実施例３）ポリプロピレンからなる芯に
ポリエチレンがコーティングされた鞘からなる複合繊維
を包絡させて、三次元構造を有する不織布成型体を形成
させた。この様にして得られた厚み７mmの不織布成型体
を 130℃に加温し、表面層のポリエチレンのみ溶融さ
せ、その成型体にヤシ殻を原料とした粒度 28 〜70mesh
に調整した破砕状活性炭及び同サイズのアニリン、リン
ゴ酸、鉄塩を担持させた活性炭混合物の中を通過させ
て、活性炭粒子を不織布成型体の表面及び内部組織に付
着させた。(Example 3) A non-woven fabric molded body having a three-dimensional structure was formed by enveloping a composite fiber having a sheath made of a polypropylene core coated with polyethylene. The non-woven fabric molded product having a thickness of 7 mm thus obtained was heated to 130 ° C. to melt only the polyethylene of the surface layer, and the molded product had a grain size of 28 to 70 mesh
The activated carbon particles were allowed to adhere to the surface and the internal structure of the non-woven fabric molded body by passing through the crushed activated carbon prepared in 1. and the activated carbon mixture carrying the same size of aniline, malic acid and iron salt.
【００４５】（実施例４）実施例１で得られた不織布を
30 g/m2のエレクトレット不織布とピッチ５mm、高さ 2
0 mmのプリーツに同時加工を行った。Example 4 The nonwoven fabric obtained in Example 1 was
Electret non-woven fabric with 30 g / m 2 and pitch 5 mm, height 2
Simultaneous processing was performed on 0 mm pleats.
【００４６】実施例１で得られた不織布の活性炭粒子接
着量は 350 g/m2 であり、JISK-1474-1975 によって測
定したベンゼン吸着量は 122 g/m2 で、良好な吸着性を
有することが分かった。The non-woven fabric obtained in Example 1 had an adhering amount of activated carbon particles of 350 g / m 2 and an adsorbing amount of benzene of 122 g / m 2 as measured by JIS K-1474-1975, showing good adsorbability. I found out.
【００４７】実施例２及び３で得られた不織布成型体の
活性炭粒子接着量はそれぞれ0.13及び0.12 g/m2 であ
り、JIS K-1474-1975 によって測定したベンゼン吸着量
はそれぞれ 0.045及び 0.041 g/ml となって、良好な吸
着性を有することが分かった。The non-woven fabric molded bodies obtained in Examples 2 and 3 had activated carbon particle adhesion amounts of 0.13 and 0.12 g / m 2 , respectively, and benzene adsorption amounts measured by JIS K-1474-1975 of 0.045 and 0.041 g, respectively. It became / ml and was found to have good adsorptivity.
【００４８】実施例２で得られた不織布成型体 200×20
0 ×5.4 mmをそれぞれ悪臭成分である硫化水素 500 ppm
またはトリメチルアミン 100 ppm及びアセトアルデヒド
50ppm を含む容量１m ×１m ×１m のボックス中に入れ
空気を循環しながら放置した結果、いずれも 20 分で臭
気が殆ど総て除去された。Nonwoven fabric molding obtained in Example 2 200 × 20
0 × 5.4 mm is 500 ppm of hydrogen sulfide, which is a malodorous component.
Or trimethylamine 100 ppm and acetaldehyde
As a result of placing it in a box containing 50 ppm and having a capacity of 1 m × 1 m × 1 m and circulating air, it was found that almost all odors were removed in 20 minutes.
【００４９】実施例３で得られた不織布成型体の 200×
200 ×7.7 mmをそれぞれ悪臭成分である硫化水素 500 p
pmまたはトリメチルアミン 100 ppm及びアセトアルデヒ
ド50ppm を含む容量１m ×１m ×１m のボックス中に入
れ空気を循環しながら放置した結果、いずれも 20 分で
臭気が殆ど総て除去された。200 × of the nonwoven fabric molded body obtained in Example 3
200 × 7.7 mm is 500 p of hydrogen sulfide, which is a malodorous component
As a result of placing in a box having a volume of 1 m x 1 m x 1 m containing 100 ppm of pm or trimethylamine and 50 ppm of acetaldehyde and circulating air, the odor was almost completely removed in 20 minutes.
【００５０】[0050]
【発明の効果】本発明の吸着材は不織布または不織布成
型体の基材上に活性炭粒子が、粒子間の空隙率が高い状
態で均一に分散され、且つ活性炭粒子の表面が露出した
状態で保持されているため、吸着速度が高く吸着容量も
大きい。更に、通気性が良好な粗な繊維組織となってい
るから圧力損失が極めて低く、ガスの流動性が乏しい雰
囲気或いは風量が大きい状態での使用に適している。こ
の不織布または不織布成型体吸着材は更に１枚をプリー
ツ状としたり、或いは複数枚を重ねてプリーツ状として
使用することもできる。EFFECT OF THE INVENTION The adsorbent of the present invention has activated carbon particles uniformly dispersed on a base material of a non-woven fabric or a non-woven fabric molded body in a state where the void ratio between the particles is high and the surface of the activated carbon particles is exposed. Therefore, the adsorption rate is high and the adsorption capacity is large. Furthermore, since it has a coarse fiber structure with good air permeability, it has a very low pressure loss, and is suitable for use in an atmosphere with poor gas fluidity or a large air flow. This non-woven fabric or the non-woven fabric molded body adsorbent may be used in the form of one pleated plate or a plurality of pleated plates.
【図１】本発明の吸着材の一態様の基材である不織布成
型体の繊維の形状を示すための図面に代わる顕微鏡写真
(10倍) である。FIG. 1 is a photomicrograph as a substitute for a drawing for showing the shape of fibers of a non-woven fabric molded body which is a base material of one embodiment of an adsorbent of the present invention
(10 times).
Claims (6)
体の表面及び内部組織の外気との接触面に、ラテックス
或いはエマルジョンまたは溶媒を含まないポリマー系接
着剤からなるバインダー層を形成させ、該バインダー層
に活性炭粒子を接着せしめ粒子表面の少なくとも一部を
露出された状態に保持せしめてなる吸着材。1. A binder layer made of a polymer adhesive containing no latex, emulsion or solvent is formed on the surface of a non-woven fabric or a non-woven fabric having good air permeability and on the contact surface of the internal tissue with the outside air. An adsorbent obtained by adhering activated carbon particles to a layer and keeping at least a part of the particle surfaces exposed.
体の表面及び内部組織の外気との接触面に、ラテックス
或いはエマルジョンまたは溶媒を含まないポリマー系接
着剤からなるバインダー層を形成させ、該バインダー層
に活性炭粒子を接着せしめ粒子表面の少なくとも一部を
露出された状態に保持せしめ、更に該不織布または不織
布成型体の表面に、ラテックス或いはエマルジョンまた
は溶媒を含まないポリマー系接着剤からなるコート層を
形成せしめてなる吸着材。2. A binder layer made of a polymer adhesive containing no latex, emulsion or solvent is formed on the surface of a non-woven fabric or a non-woven fabric having good air permeability and the contact surface of the internal tissue with the outside air. Activated carbon particles are adhered to the layer to hold at least a part of the particle surface in an exposed state, and a coating layer made of a polymer adhesive containing no latex or emulsion or solvent is further provided on the surface of the nonwoven fabric or the nonwoven fabric molded body. An adsorbent that is formed.
体の、表面及び内部組織の外気との接触面を溶融させて
活性炭粒子を接着せしめ、粒子表面の一部を露出された
状態に保持せしめてなる吸着材。3. A non-woven fabric or a non-woven fabric having good air permeability, wherein the surface and the contact surface of the internal tissue with the outside air are melted to adhere the activated carbon particles to keep a part of the particle surface exposed. An adsorbent made of.
体の表面及び内部組織の外気との接触面に、ラテックス
或いはエマルジョンまたは溶媒を含まないポリマー系接
着剤からなるバインダー層を形成させ、該バインダー層
に活性炭粒子を接着せしめ粒子表面の少なくとも一部を
露出された状態に保持せしめてなる吸着材と、エレクト
レット処理した不織布を重ね合わせ要すればプリーツ状
に成型せしめてなる吸着材。4. A binder layer made of a polymer adhesive containing no latex, emulsion or solvent is formed on the surface of a non-woven fabric or a non-woven fabric having good air permeability and on the contact surface of the internal tissue with the outside air. An adsorbent formed by adhering activated carbon particles to a layer and holding at least a part of the particle surface in an exposed state, and an electret-treated non-woven fabric in a pleated form if necessary.
体の表面及び内部組織の外気との接触面に、ラテックス
或いはエマルジョンまたは溶媒を含まないポリマー系接
着剤からなるバインダー層を形成させた後、該シートを
活性炭粒子の流動層中を通過させることにより、不織布
または不織布成型体の表面及び内部組織の外気との接触
面に活性炭粒子を付着させ、粒子表面の少なくとも一部
を露出された状態に保持させることを特徴とする吸着材
の製法。5. After forming a binder layer made of a polymer adhesive containing no latex or emulsion or a solvent on the surface of a non-woven fabric or a non-woven fabric having good air permeability and the contact surface of the internal tissue with the outside air, By passing the sheet through a fluidized bed of activated carbon particles, the activated carbon particles are attached to the surface of the non-woven fabric or the non-woven fabric molding and the contact surface of the internal tissue with the outside air, so that at least a part of the particle surface is exposed. A method for producing an adsorbent characterized by holding it.
ィショナーまたは空気清浄器用である請求項１〜５のい
ずれか１項に記載された吸着材または吸着材の製法。6. The adsorbent or the method for producing the adsorbent according to any one of claims 1 to 5, wherein the adsorbent is for an air conditioner or an air purifier mounted on an automobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15031596A JP3712084B2 (en) | 1996-05-21 | 1996-05-21 | Adsorbent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15031596A JP3712084B2 (en) | 1996-05-21 | 1996-05-21 | Adsorbent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09308679A true JPH09308679A (en) | 1997-12-02 |
| JP3712084B2 JP3712084B2 (en) | 2005-11-02 |
Family
ID=15494344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15031596A Expired - Lifetime JP3712084B2 (en) | 1996-05-21 | 1996-05-21 | Adsorbent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3712084B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010199660A (en) * | 2009-02-23 | 2010-09-09 | Panasonic Corp | Speaker device, electronic apparatus and vehicle using the speaker device, and method of manufacturing sheet type pressure regulator used for the speaker device |
| JP2013076682A (en) * | 2011-09-30 | 2013-04-25 | Casle Co Ltd | In-vehicle type contaminated air and water purification device |
| CN113522054A (en) * | 2020-04-22 | 2021-10-22 | 山东海科创新研究院有限公司 | Flexible composite membrane material, preparation method thereof and composite membrane coiled material with efficient air purification function |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190075492A (en) | 2017-12-21 | 2019-07-01 | 우석대학교 산학협력단 | Fine dust adsorption sheets and manufacture method of the same |
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| JPH07268767A (en) * | 1994-03-23 | 1995-10-17 | Asahi Optical Co Ltd | Production of functional nonwoven fabric |
| JPH07289890A (en) * | 1994-04-28 | 1995-11-07 | Kuraray Chem Corp | Active carbon additive for rice cooker |
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| JPH0338212A (en) * | 1989-07-05 | 1991-02-19 | Yasuo Yokoi | Air filter |
| JPH0474505A (en) * | 1990-07-14 | 1992-03-09 | Kuraray Chem Corp | Air cleaning filter element |
| JPH05131136A (en) * | 1991-06-15 | 1993-05-28 | Kuraray Chem Corp | Production of activated carbon bonded sheet |
| JPH07250885A (en) * | 1994-03-11 | 1995-10-03 | Kuraray Chem Corp | Air-purifying filter element |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010199660A (en) * | 2009-02-23 | 2010-09-09 | Panasonic Corp | Speaker device, electronic apparatus and vehicle using the speaker device, and method of manufacturing sheet type pressure regulator used for the speaker device |
| US8767998B2 (en) | 2009-02-23 | 2014-07-01 | Panasonic Corporation | Pressure adjustor and method of manufacturing the same, speaker device using the pressure adjustor, electronic device, and vehicle |
| JP2013076682A (en) * | 2011-09-30 | 2013-04-25 | Casle Co Ltd | In-vehicle type contaminated air and water purification device |
| CN113522054A (en) * | 2020-04-22 | 2021-10-22 | 山东海科创新研究院有限公司 | Flexible composite membrane material, preparation method thereof and composite membrane coiled material with efficient air purification function |
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| Publication number | Publication date |
|---|---|
| JP3712084B2 (en) | 2005-11-02 |
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