JP2000070646A - Air purifying filter member - Google Patents
Air purifying filter memberInfo
- Publication number
- JP2000070646A JP2000070646A JP10244514A JP24451498A JP2000070646A JP 2000070646 A JP2000070646 A JP 2000070646A JP 10244514 A JP10244514 A JP 10244514A JP 24451498 A JP24451498 A JP 24451498A JP 2000070646 A JP2000070646 A JP 2000070646A
- Authority
- JP
- Japan
- Prior art keywords
- base material
- air
- filter member
- antibacterial
- fibers
- 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.)
- Pending
Links
Landscapes
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Treating Waste Gases (AREA)
- Separation Of Gases By Adsorption (AREA)
- Filtering Materials (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Paper (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、半導体製造工業、
医薬品製造工業、食品工業、病院などの分野で使用され
るクリーンルーム用エアーフィルター、オフィスの空
調、家庭用エアコンなどの空気清浄化フィルター部材、
特に各種の乗り物に使用される自動車用エアーフィルタ
ーの空気清浄化フィルター部材に適用される抗菌防黴機
能を有する空気清浄化フィルター部材に関する。さらに
詳しくは、抗菌、防黴の双方に極めて効果的であって、
しかも高濃度菌汚染にも良好に機能し、耐久性に優れ、
効果の低下や脱落汚染が著しく少なく、安全性の高い空
気清浄化フィルター部材に関する。TECHNICAL FIELD The present invention relates to a semiconductor manufacturing industry,
Air filters for clean rooms used in the fields of pharmaceutical manufacturing industry, food industry, hospitals, etc., air purification filter members for office air conditioning, home air conditioners, etc.
In particular, the present invention relates to an air purifying filter member having an antibacterial and antifungal function applied to an air purifying filter member of an automotive air filter used for various vehicles. More specifically, it is extremely effective for both antibacterial and antifungal,
Moreover, it works well for high concentration bacterial contamination and has excellent durability.
The present invention relates to a highly safe air purifying filter member having a reduced effect and reduced contamination.
【０００２】[0002]
【従来の技術】従来、吸着剤を使用した空気清浄化フィ
ルターは、通気性を有するウレタンの多孔質基材上に、
粒状或いは粉体状活性炭を接着させたものや、不織布に
活性炭を塗りつけたり、活性炭素を含浸させたものに除
塵性シートであるエレクトレットを張り合わせたものが
あった。また、ハニカムの空孔部分にぺレット状活性炭
を詰めたもの、あるいは、波状の不織布と平面状の不織
布を組み合わせ（コルゲート）てできる三角柱の部分に
同じくぺレット状活性炭を詰めたもの等があった。ま
た、特開昭６１−１１９２６９号公報では２枚の基材シ
ート間に活性炭を挟み込んで、活性炭シートとする方法
が開示されている。2. Description of the Related Art Conventionally, an air purifying filter using an adsorbent is formed on a urethane porous substrate having air permeability.
Some of them have granular or powdered activated carbon adhered thereto, and some have non-woven fabric coated with activated carbon or impregnated with activated carbon and an electret as a dust-removing sheet adhered thereto. Also, honeycombs are filled with pellet-shaped activated carbon in the pores, or triangular prisms formed by combining a corrugated nonwoven fabric with a planar nonwoven fabric (corrugated) are also filled with pelletized activated carbon. Was. Japanese Patent Application Laid-Open No. 61-119269 discloses a method in which activated carbon is sandwiched between two base sheets to form an activated carbon sheet.
【０００３】不織布に活性炭を塗りつけたり、活性炭を
含浸させたものとエレクトレットを組合わせたフィルタ
ーでは活性炭を固定化するためにバインダーが必要であ
り、このバインダーの使用により活性炭の脱臭能力が低
下するといった問題や、単位面積当たりの活性炭の量を
増加させると必然的に圧力損失が増大し、通気性のフィ
ルターとして適さない性能となったり、圧力損失を十分
に小さくすると吸着剤の量が少なく脱臭寿命も短かくな
るというジレンマを抱えていた。通気性を有するウレタ
ンを使用したものは高価であるばかりでなく、脱臭性能
を十分に得ようとすると非常に嵩高くなりフィルターと
しての適性にかけたものになった。ハニカムやコルゲー
トの空孔部分にぺレット状活性炭を詰めたフィルターな
どもあったが、空気の流れが乱れたり、エレクトレット
などの平面上の除塵フィルターを併用した場合に空気の
流れにむらができ、除塵性能が低下する問題があった。
一方、２枚のシート間に活性炭を挟み込んで、活性炭シ
ートとしたものは、吸着剤を多くすることができるもの
の除塵性能がなく、甚だしくは活性炭の微粉末がシート
から発生するという問題があった。除塵フィルターと組
み合わせて用いればこういう問題は避けれるが、貼り合
わせるためのバインダーによる圧力損失の増大や、貼り
合わせる工程において除塵性が低下するなどの問題があ
った。A filter in which activated carbon is applied to a non-woven fabric or a filter in which activated carbon is impregnated with an electret and an electret is combined requires a binder to fix the activated carbon, and the use of the binder reduces the deodorizing ability of the activated carbon. If the amount of activated carbon per unit area is increased, the pressure loss will inevitably increase, resulting in performance that is not suitable as a gas permeable filter. Also had the dilemma of becoming shorter. Those using urethane having air permeability were not only expensive, but also very bulky in order to obtain sufficient deodorizing performance, so that they became suitable for filters. There were also filters filled with pelletized activated carbon in the holes of honeycombs and corrugates, but the air flow was disturbed, and when combined with a flat dust filter such as an electret, the air flow could be uneven, There was a problem that the dust removal performance was reduced.
On the other hand, an activated carbon sheet in which activated carbon is sandwiched between two sheets has a problem that although the amount of adsorbent can be increased, there is no dust removal performance, and extremely fine powder of activated carbon is generated from the sheet. . When used in combination with a dust filter, such problems can be avoided, but there are problems such as an increase in pressure loss due to the binder for bonding and a decrease in dust removal in the bonding process.
【０００４】近年ユーザーの清潔志向の高まりを背景
に、抗菌や防黴の機能を備えた各種繊維状物質を含む空
気清浄化フィルター部材が市場に提供されている。従来
から、銀、銅、亜鉛などの無機化合物金属塩が抗菌性を
有することは良く知られていた。また、ピロール系、ピ
リジン系、ピリミジン系、イミダゾール系、チアゾール
系などの有機化合物が、防黴性を有することも良く知ら
れていたことである。しかしながら、一般に無機金属塩
は、抗菌効果はあるものの、防黴効果において劣り、一
方、有機化合物は、防黴効果はあるが抗菌効果が劣る傾
向が大きく、抗菌・防黴の双方の機能を十分兼備したも
のは未だない。[0004] In recent years, with the growing demand for cleanliness of users, air purifying filter members containing various fibrous substances having antibacterial and antifungal functions have been provided on the market. It has been well known that inorganic compound metal salts such as silver, copper, and zinc have antibacterial properties. It is also well known that pyrrole-based, pyridine-based, pyrimidine-based, imidazole-based, and thiazole-based organic compounds have fungicidal properties. However, in general, inorganic metal salts have an antibacterial effect but are inferior in antifungal effect, while organic compounds have an antifungal effect but have a large tendency to be inferior in antifungal effect, and both antibacterial and antifungal functions are sufficient. There is still nothing that combines.
【０００５】最近は、抗菌・防黴の双方の機能を持った
空気清浄化フィルター部材の要望が一段と高まり、メー
カーは、その対応に注力しているのが実状である。[0005] Recently, the demand for an air purifying filter member having both functions of antibacterial and antifungal has been further increased, and in fact, manufacturers are focusing on such measures.
【０００６】これまで、空気清浄化フィルター部材に抗
菌や防黴の機能を付与する目的で、抗菌防黴剤、特に無
機化合物金属塩を含有する各種の繊維状物質を空気清浄
化フィルター部材に適用する試みは、数多くなされてい
る。Hitherto, in order to impart an antibacterial and antifungal function to an air purifying filter member, various fibrous substances containing an antibacterial antifungal agent, particularly a metal salt of an inorganic compound, have been applied to the air purifying filter member. There have been many attempts to do so.
【０００７】特開平６−２８５３１４号公報には、特定
の平均繊維径を有する一価の銀イオンを含有するＡｇ含
有ガラス繊維と特定の平均繊維径および特定の平均繊維
長を有する銀イオンを含まないＡｇ非含有ガラス繊維と
を混抄して得られる不織布を抗菌濾紙として提供する
旨、開示されている。JP-A-6-285314 discloses Ag-containing glass fibers containing monovalent silver ions having a specific average fiber diameter and silver ions having a specific average fiber diameter and a specific average fiber length. It is disclosed that a nonwoven fabric obtained by mixing non-Ag-free glass fibers is provided as an antibacterial filter paper.
【０００８】特開平６−２８５３１４号公報には、活性
炭繊維と、一価の銀イオンを含有するＡｇ含有ガラス繊
維とを混抄して得られる不織布よりなる脱臭抗菌濾紙が
開示されている。Japanese Unexamined Patent Publication (Kokai) No. 6-285314 discloses a deodorizing antibacterial filter paper made of a nonwoven fabric obtained by mixing activated carbon fibers and Ag-containing glass fibers containing monovalent silver ions.
【０００９】特開平６−２６９６１９号公報には、通気
性を有するシート同士が通気性の抗菌性ホットメルトシ
ートで接合され、全体として通気性を有していることを
特徴とする抗菌性ホットメルトシートが開示されてい
る。Japanese Unexamined Patent Publication (Kokai) No. 6-269619 discloses an antibacterial hot melt wherein air permeable sheets are joined together with a gas permeable antibacterial hot melt sheet, and the whole is air permeable. A sheet is disclosed.
【００１０】特開平７−１０８１２０号公報には、エア
ーフィルタを構成するろ材繊維の間を通過する空気流に
抗菌性を有する金属ヒュームを漂わせ、前記金属ヒュー
ムを含む空気がエアーフィルタを通過するときに、金属
ヒュームが前記ろ材繊維に付着するようにしたことを特
徴とする抗菌エアーフィルタの製造方法が開示されてい
る。Japanese Patent Application Laid-Open No. 7-108120 discloses that air fumes having antibacterial properties are floated in an air flow passing between filter media fibers constituting an air filter, and air containing the metal fumes passes through the air filter. A method of manufacturing an antibacterial air filter, wherein metal fume is sometimes attached to the filter medium fiber is disclosed.
【００１１】しかしこれらいずれの方法においても、抗
菌・防黴の双方の機能を十分兼備したものはなく、特に
耐久性などには問題がある。However, none of these methods has both antibacterial and antifungal functions sufficiently, and there is a problem particularly in durability and the like.
【００１２】[0012]
【発明が解決しようとする課題】本発明は上記のような
問題点を解消するためになされたもので、圧力損失が少
なく、脱臭性能が良く、さらに抗菌防黴性を有する空気
清浄化フィルターを提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an air purifying filter having a small pressure loss, a good deodorizing performance and an antibacterial and antifungal property is provided. The purpose is to provide.
【００１３】[0013]
【課題を解決するための手段】本発明者らは、上記課題
を解決するため鋭意検討を重ねた結果、本発明に到達し
たものである。Means for Solving the Problems The present inventors have made intensive studies to solve the above problems, and as a result, have reached the present invention.
【００１４】（１）基材Ａと基材Ｂの間に吸着剤を封入
してなる部材であり、さらに基材Ｂが除塵性シートであ
ることを特徴とする空気清浄化フィルター部材に関する
ものである。(1) An air-cleaning filter member comprising an adsorbent sealed between a substrate A and a substrate B, wherein the substrate B is a dust-removable sheet. is there.
【００１５】（２）また、上記発明の（１）において基
材ＢがＪＩＳ Ｂ ９９０８に準じた面風速５．３ｃｍ
／秒で測定した０．３μｍ粒子の捕集効率が２０％以上
であることを特徴とする空気清浄化フィルター部材に関
するものである。(2) In the above (1), the base material B has a surface wind velocity of 5.3 cm according to JIS B 9908.
The present invention relates to an air-cleaning filter member characterized in that the collection efficiency of 0.3 μm particles measured per second / second is 20% or more.
【００１６】（３）また、上記発明の（１）、（２）に
おいて含窒素複素環、硫黄原子の少なくともいずれかを
含む有機化合物がベンゾイミダゾール化合物、メルカプ
トピリジン−Ｎ−オキシド化合物、イソチアゾロン化合
物、ベンゾチアゾール化合物もしくはベンゾチアゾロン
化合物から選ばれる少なくとも１種の化合物の銀塩、銅
塩、亜鉛塩のいずれか１種である金属塩よりなる抗菌防
黴剤を含有することを特徴とする空気清浄化フィルター
部材に関するものである。(3) In the above inventions (1) and (2), the organic compound containing at least one of a nitrogen-containing heterocycle and a sulfur atom may be a benzimidazole compound, a mercaptopyridine-N-oxide compound, an isothiazolone compound, An air purifying filter comprising an antibacterial and antifungal agent comprising a metal salt of at least one of a benzothiazole compound and a benzothiazolone compound, which is a silver salt, a copper salt, or a zinc salt. It relates to members.
【００１７】（４）また、上記発明の（３）において基
材Ａが抗菌防黴剤を含有することを特徴とする空気清浄
化フィルター部材に関するものである。(4) The present invention also relates to an air cleaning filter member according to (3), wherein the base material A contains an antibacterial and fungicide.
【００１８】（５）また、上記発明の（１）〜（４）に
おいて基材Ａおよび基材Ｂが不織布であることを特徴と
する空気清浄化フィルター部材に関するものである。(5) The invention also relates to an air cleaning filter member according to any one of the above (1) to (4), wherein the substrate A and the substrate B are nonwoven fabrics.
【００１９】（６）また、上記発明の（１）〜（５）に
おいて基材Ｂを上流側にして使用することを特徴とする
空気清浄化フィルター部材に関するものである。(6) The present invention also relates to an air purification filter member according to any one of (1) to (5), wherein the substrate B is used with the base material B positioned upstream.
【００２０】[0020]
【発明の実施の形態】以下に、本発明の空気清浄化フィ
ルター部材に係わる構成要素を詳細に説明する。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, components related to an air cleaning filter member of the present invention will be described in detail.
【００２１】本発明に係わる基材としては、織布、不織
布、ネット、及びスポンジ等の他、ポリエチレンフィル
ム、ポリプロピレンフィルム、及びポリエステルフィル
ムの様な汎用の熱可塑性フィルムや薄板等が挙げられ
る。これらの内、フィルムや薄板等の通気性に乏しいシ
ートは、微細な穴をあけて通気性を向上させても良い。
その中でも、特に不織布等を用いれば、比較的均一な通
気性を確保することができるばかりか、封入加工も容易
であるため、優位に使用される。Examples of the substrate according to the present invention include woven fabrics, nonwoven fabrics, nets, sponges, etc., as well as general-purpose thermoplastic films such as polyethylene films, polypropylene films, and polyester films, and thin plates. Of these, a sheet having poor air permeability such as a film or a thin plate may be provided with fine holes to improve the air permeability.
Among them, in particular, when a nonwoven fabric or the like is used, a relatively uniform air permeability can be ensured, and the encapsulation process is also easy.
【００２２】不織布は、ポリアミド系繊維、ポリエステ
ル系繊維、ポリアルキレンパラオキシベンゾエート系繊
維、ポリウレタン系繊維、ポリビニルアルコール系繊
維、ポリ塩化ビニリデン系繊維、ポリ塩化ビニル系繊
維、ポリアクリロニトリル系繊維、ポリオレフィン系繊
維、フェノール系繊維などの合成繊維、ガラス繊維、金
属繊維、アルミナ繊維、活性炭素繊維などの無機繊維、
木材パルプ、麻パルプ、コットンリンターパルプなどの
天然繊維、再生繊維、あるいはこれらの繊維に親水性や
難燃性などの機能を付与した繊維などを使用し、各種方
法によって製造したものである。Non-woven fabrics include polyamide fibers, polyester fibers, polyalkylene paraoxybenzoate fibers, polyurethane fibers, polyvinyl alcohol fibers, polyvinylidene chloride fibers, polyvinyl chloride fibers, polyacrylonitrile fibers, and polyolefin fibers. , Synthetic fibers such as phenolic fibers, inorganic fibers such as glass fibers, metal fibers, alumina fibers, activated carbon fibers,
It is produced by various methods using natural fibers such as wood pulp, hemp pulp, and cotton linter pulp, regenerated fibers, or fibers obtained by imparting functions such as hydrophilicity and flame retardancy to these fibers.
【００２３】不織布の製造方法については特に制限はな
く、目的・用途に応じて、乾式法、湿式抄造法、メルト
ブローン法、スパンボンド法などで得られたウェブを水
流交絡法、ニードルパンチ法、ステッチボンド法などの
物理的方法、サーマルボンド法などの熱による接着方
法、レジンボンドなどの接着剤による接着方法で強度を
発現させる方法を適宜組み合わせて製造することができ
る。The method for producing the nonwoven fabric is not particularly limited, and the web obtained by a dry method, a wet papermaking method, a melt blown method, a spun bond method, etc. may be subjected to a hydroentanglement method, a needle punch method, a stitch according to the purpose and application. It can be produced by appropriately combining a physical method such as a bonding method, a bonding method using heat such as a thermal bonding method, and a bonding method using an adhesive such as a resin bond to develop strength.
【００２４】基材Ｂは前記に示した様な基材を用いるこ
とが出来、さらに大気中の塵壊等の浮遊粒子を捕捉する
除塵性能をもつシートが好ましい。As the base material B, the above-described base materials can be used, and a sheet having a dust-removing ability for capturing suspended particles such as dust in the air is preferable.
【００２５】基材Ａの圧力損失（ＰＡ）と基材Ｂの圧力
損失（ＰＢ）との差（ＰＢ−ＰＡ）は５．３ｃｍ／秒の
風速の時に０．１ｍｍＨ2Ｏ以上であることが好まし
い。また、圧力損失との差が１．０ｍｍＨ2Ｏ以上であ
るとさらに驚くことに脱臭性が向上することが判った。The difference (PB-PA) between the pressure loss (PA) of the substrate A and the pressure loss (PB) of the substrate B may be 0.1 mmH 2 O or more at a wind speed of 5.3 cm / sec. preferable. Also, it was found that the deodorizing property was more surprisingly improved when the difference from the pressure loss was 1.0 mmH 2 O or more.
【００２６】基材ＢはＪＩＳ Ｂ ９９０８に準じた面
風速５．３ｃｍ／秒で測定した０．３μｍ粒子の捕集効
率が２０％以上であることが好ましい。これは捕集効率
の比較的少ない一般フィルターに分類される比較的長寿
命で低圧損である粗塵フィルター、中塵・微塵フィルタ
ーと中性能フィルター、高性能フィルター、あるいは捕
集効率が９９．７％を超えるような超高性能フィルター
に分類されるＨＥＰＡ、ＵＬＰＡ等の多風量タイプのフ
ァイルターと組み合わせて使用する事で基材Ａと基材Ｂ
の間におそらく対流が起こり、それにより集塵効率が増
加し脱臭性能もアップする。The base material B preferably has a collection efficiency of 0.3 μm particles measured at a surface wind speed of 5.3 cm / sec according to JIS B 9908 of 20% or more. This is classified as a general filter with relatively low collection efficiency. It has a relatively long life and low pressure loss, a coarse dust filter, a medium / fine dust filter and a medium-performance filter, a high-performance filter, or a collection efficiency of 99.7. % And the base material B by using in combination with a large air volume type filter such as HEPA, ULPA, etc.
During this time, convection is likely to occur, thereby increasing dust collection efficiency and improving deodorizing performance.
【００２７】基材Ｂの捕集効率が２０％以下であると空
気清浄化フィルター部材としての十分な集塵能力を発揮
できないのは勿論であるが、意外なことに脱臭性能も劣
ってしまうことが判った。If the collection efficiency of the base material B is 20% or less, it is not possible to exert a sufficient dust collecting ability as an air cleaning filter member, but unexpectedly, the deodorizing performance is inferior. I understood.
【００２８】本発明に係わる吸着剤の具体的な例として
は、活性炭、添着活性炭、活性白土、天然および合成ゼ
オライト、セピオライト、酸化鉄などの鉄系化合物、酸
化亜鉛、酸化マグネシウム、シリカ、シリカ−酸化亜鉛
複合物、シリカ−アルミナ−酸化亜鉛複合物、二酸化マ
ンガン、複合フィロケイ酸塩、シクロデキストリン、ア
スコルビン酸と二価鉄塩の混合物、ビタミンＢ群とリン
酸塩の混合物、あるいはこれらの混合物などが挙げられ
る。これらの吸着剤の形状は特に限定されるものではな
いが粒子状のものが好ましく、比表面積が５０〜２００
０m2／ｇのものを適宜選択して用いることが可能であ
り、例えば活性炭の場合、５００〜１５００m2／ｇのも
のが好ましい。Specific examples of the adsorbent according to the present invention include activated carbon, impregnated activated carbon, activated clay, natural and synthetic zeolites, sepiolite, iron compounds such as iron oxide, zinc oxide, magnesium oxide, silica and silica. Zinc oxide composite, silica-alumina-zinc oxide composite, manganese dioxide, composite phyllosilicate, cyclodextrin, a mixture of ascorbic acid and ferrous salt, a mixture of vitamin B group and phosphate, or a mixture thereof Is mentioned. The shape of these adsorbents is not particularly limited, but is preferably in the form of particles and has a specific surface area of 50 to 200.
It is possible to use by appropriately selecting the ones of 0 m 2 / g, for example, in the case of activated carbon, preferably from 500 to 1500 2 / g.
【００２９】また、用途に応じて、さらに基材には、撥
水剤や難燃剤を加えても良い。Further, a water repellent or a flame retardant may be further added to the base material depending on the use.
【００３０】吸着剤の封入手段は、基材Ａまたは基材Ｂ
上に吸着剤混合物と熱可塑性バインダーの混合物を散布
し、基材Ａまたは基材Ｂで覆いドライヤー等で熱を加え
固定させる方法、混合物を散布した基材Ａまたは基材Ｂ
にドライヤー等で熱を加え、バインダーを溶融後に基材
Ａまたは基材Ｂを覆う方法など考えられるあらゆる方法
で封入することが出来る。The means for enclosing the adsorbent may be a substrate A or a substrate B
A method in which a mixture of an adsorbent mixture and a thermoplastic binder is sprayed thereon, covered with the base material A or B, and fixed by applying heat with a drier or the like. The base material A or B in which the mixture is spread
Heat can be applied to the base material A or the base material B after the binder is melted by applying heat to the base material A or the base material B.
【００３１】吸着剤の封入量は、ＪＥＭ １４６７−１
９９５などで定める除塵性能の算出、耐久日数の算出で
決定するが、５０ｇ／m2〜４００ｇ／m2が好ましい。The amount of the adsorbent to be charged was determined according to JEM 1467-1.
Calculation of dust removal performance specified by the like 995, will be determined by the calculation of the endurance days, 50g / m 2 ~400g / m 2 is preferred.
【００３２】本発明における空気清浄化フィルターの抗
菌防黴能の付与方法は、基材Ａまたは基材Ｂまたは吸着
剤に抗菌防黴剤を含浸塗工、バインダーによる接着、ホ
ットメルトなどによる熱融着あるいはスプレーのような
もので表面に塗りつけるなど考えられるあらゆる方法で
付与することが出来る。The method for imparting the antibacterial and fungicidal activity of the air purifying filter according to the present invention is carried out by impregnating the substrate A or B or the adsorbent with the antibacterial and fungicide, bonding with a binder, or hot-melting by hot melt. It can be applied in any conceivable manner, such as by painting or spraying on the surface.
【００３３】抗菌防黴剤は空気清浄化フィルター部材の
いかなる部分に含有してもかまわないが、基材Ｂに含有
した場合には、基材Ｂに含有した抗菌防黴剤の作用によ
り菌や黴の繁殖が防げるが、例えば基材Ｂを通過した後
に菌や黴が発生した場合には抗菌防黴性を十分に発揮で
きなくなる。また、基材Ａ、基材Ｂ、吸着剤全てに抗菌
防黴剤を含有すれば抗菌防黴性を十分に発揮できるもの
のコストがかかりすぎてしまう。従って下流側となる基
材Ａに含有すればコストが最小限に抑えられる上に菌や
黴の繁殖を防止するのにさらに効果的である。The antibacterial and fungicide may be contained in any part of the air cleaning filter member. However, when the antibacterial and fungicide are contained in the base material B, the action of the antibacterial and fungicide contained in the base material B causes bacteria and fungi. Although the propagation of mold can be prevented, for example, when bacteria or fungi are generated after passing through the base material B, the antibacterial and antifungal properties cannot be sufficiently exhibited. Further, if the antibacterial and antifungal agents are contained in all of the base material A, the base material B and the adsorbent, the antibacterial and antifungal properties can be sufficiently exhibited, but the cost is too high. Therefore, if it is contained in the base material A on the downstream side, the cost can be minimized and it is more effective to prevent the growth of bacteria and fungi.
【００３４】抗菌防黴能は、固形分で１％程度、あるい
はそれ以下でも十分な作用を発揮するので、それのみで
みればかなり低い量でも利用可能であるが、例えば、セ
ルロース加工された抗菌防黴繊維状物質を、樹脂業界で
言われている、いわゆるマスターバッチとして一部用
い、他の未加工繊維と混抄して用いる実施態様は、産業
的には可能となり、また、管理も容易で実用性が高く、
各種空気清浄化フィルター部材に好適に用いられる。The antibacterial and antifungal ability exhibits a sufficient effect even at a solid content of about 1% or less, so that it can be used in a considerably low amount by itself. An embodiment in which the fungicidal fibrous substance is partially used as a so-called masterbatch, which is said in the resin industry, and used in combination with other unprocessed fibers, is industrially possible, and is easy to manage. High practicality,
It is suitably used for various air cleaning filter members.
【００３５】先の段落でも触れたが、抗菌防黴剤を高密
度に充填した基材を一部用いることの利点について述べ
る。抗菌防黴剤を低密度に充填した繊維状物質を均一に
分布させたものと、高密度に充填した繊維状物質を島状
に分布させたものとを比較すると、少なくとも高濃度菌
汚染耐性、耐久性において、後者の方が明らかに優位性
を示した。As mentioned in the preceding paragraph, the advantage of partially using a base material densely filled with an antibacterial and fungicide will be described. Comparing the one in which the fibrous material filled with the antibacterial and fungicide at a low density is uniformly distributed and the one in which the fibrous material filled with a high density is distributed in an island form, at least high resistance to bacterial contamination with high concentration, The latter clearly showed superiority in durability.
【００３６】自然界においては、雑多な菌が共存してお
り、また、各種の耐性菌の存在も良く知られている事実
である。それらを含めて、全体的な有効性を発揮させる
には、極度に高濃度化された抗菌防黴剤分布を有する島
状構造は、経済的にも非常に有効な手段である。It is a fact that various bacteria coexist in nature and the existence of various resistant bacteria is well known. In order to achieve their overall effectiveness, including these, island structures with extremely concentrated antimicrobial and fungicide distribution are economically very effective means.
【００３７】本発明の空気清浄化フィルターを空気清浄
機などの装置に装着して使用する場合はシートのまま使
用してもかまわないが、プリーツ加工などを施してフィ
ルターの面積を増やすとさらに除塵性能に効果的であ
る。When the air purifying filter of the present invention is used by attaching it to an apparatus such as an air purifier, the sheet may be used as it is. However, if the area of the filter is increased by pleating or the like, dust is further removed. Effective for performance.
【００３８】[0038]
【実施例】以下、実施例によりさらに本発明を詳細に説
明するが、本発明はその主旨を越えない限りこれらに限
定されるものではない。EXAMPLES Hereinafter, the present invention will be described in more detail by way of examples, but the present invention is not limited to these without departing from the gist of the invention.
【００３９】実施例１ ［基材Ａの作製］基材Ａとして不織布を、ポリエステル
繊維（テトロン、３ｄ、３８ｍｍ、５０ｗ％／６ｄ、５
１ｍｍ、３０ｗ％）とビスコースレーヨン繊維（３ｄ、
５１ｍｍ、２０ｗ％）とを混合し、乾式法により空気中
でウエッブを形成し、次に、熱可塑性のバインダーであ
るアクリルのラテックス中に含浸し、繊維を接着して形
成した。Example 1 [Preparation of base material A] A nonwoven fabric was used as a base material A by a polyester fiber (tetron, 3d, 38 mm, 50 w% / 6d, 5
1mm, 30w%) and viscose rayon fiber (3d,
51 mm, 20% by weight), and a web was formed in the air by a dry method, and then impregnated in acrylic latex, which is a thermoplastic binder, and bonded to form a fiber.
【００４０】［基材Ｂの作製］次に、極細ガラス繊維
（平均繊維径０．６μｍ）：１０重量％、繊維径２０μ
ｍ以下の有機繊維としてポリエステル繊維（繊維径１８
μｍ、繊維長は５ｍｍ）：４０重量％、バインダー繊維
として芯鞘型熱融着性ポリエステル繊維（繊維径１４μ
ｍ、繊維長５ｍｍ、鞘部融点１１０℃）：５０重量％を
混合して水性スラリーを調整し、これらのスラリーから
円網抄紙機にて坪量４０ｇ／ｍ2の基材Ｂを作製した。[Preparation of Substrate B] Next, ultrafine glass fibers (average fiber diameter: 0.6 μm): 10% by weight, fiber diameter: 20 μm
polyester fibers (fiber diameter 18
μm, fiber length: 5 mm): 40% by weight, core-sheath type heat-fusible polyester fiber (fiber diameter: 14 μm) as a binder fiber
m, fiber length 5 mm, sheath melting point 110 ° C.): 50% by weight was mixed to prepare an aqueous slurry, and a base material B having a basis weight of 40 g / m 2 was prepared from these slurries by a circular paper machine.
【００４１】［吸着剤の封入及び基材Ａと基材Ｂの貼り
合わせ加工］次に、吸着剤として３２〜６０メッシュの
活性炭１００重量部と５０メッシュの熱可塑性バインダ
ーであるエチレン酢酸ビニール樹脂粉体４３重量部を予
め混合し、混合粉体を作製した。この混合粉体を基材Ａ
の不織布に１４０ｇ／ｍ2となるよう散布し、加熱によ
り基材Ｂの除塵シートと張り合わせて実施例１の空気清
浄化フィルター部材を作製した。[Encapsulation of adsorbent and lamination of substrate A and substrate B] Next, 100 parts by weight of activated carbon of 32 to 60 mesh and ethylene vinyl acetate resin powder as a thermoplastic binder of 50 mesh were used as the adsorbent. 43 parts by weight of the body were mixed in advance to prepare a mixed powder. This mixed powder is used as a substrate A
Was spread at 140 g / m 2 on a non-woven fabric, and bonded to a dust removal sheet of the base material B by heating to produce an air cleaning filter member of Example 1.
【００４２】作製した捕集効率をＪＩＳ Ｂ ９９０８
に準じた面風速５．３ｃｍ／秒で測定した０．３μｍ粒
子の捕集効率が６４．２００％であった。The produced collection efficiency was measured according to JIS B 9908.
The collection efficiency of 0.3 μm particles measured at a surface wind speed of 5.3 cm / sec according to the standard was 64.200%.
【００４３】実施例２ 基材Ａとして不織布を、実施例１同様の方法にて作製し
た。基材Ｂとしてポリプロピレンを主体繊維に用いて荷
電処理したエレクトレットフィルター（東燃製；ＵＬ２
０、目付２３ｇ／ｍ2）を用いた。次に実施例１と同様
の方法にて吸着剤の封入及び貼り合わせ加工をし、実施
例２の空気清浄化フィルター部材を作製した。Example 2 A nonwoven fabric was produced as the substrate A in the same manner as in Example 1. Electret filter (made by Tonen; UL2) charged as a base fiber using polypropylene as the main fiber
0 and a basis weight of 23 g / m 2 ). Next, an adsorbent was sealed and bonded in the same manner as in Example 1 to produce an air purification filter member of Example 2.
【００４４】作製した空気清浄化フィルター部材はＪＩ
Ｓ Ｂ ９９０８に準じた面風速５．３ｃｍ／秒で測定
した０．３μｍ粒子の捕集効率が９４．３００％であっ
た。The prepared air cleaning filter member is JI
The collection efficiency of 0.3 μm particles measured at a surface wind speed of 5.3 cm / sec according to SB 9908 was 94.300%.
【００４５】実施例３ 基材Ｂとして不織布を、実施例１と同様の方法にて作製
した。次に基材Ａをアクリル酸ソーダ系アニオン性界面
活性剤（日本アクリル化学社製、プライマル８５０）を
全繊維に対して１重量％になるように添加し、繊維径
０．１デニール×６ｍｍのアクリル繊維に架橋結合を導
入し加水分解反応によってカルボキシル基とアミド基を
導入し次いでＮａイオンを付加させて得られた金属架橋
繊維、ポリ−ｐ−フェニレンテレフタルアミド繊維を均
質化装置でフィブリル化したフィブリル化有機繊維（濾
水値：３０秒）を各々６５：３５の比率で配合し、分散
濃度０．２％で３０分間分散した後、乾燥重量で１００
ｇ／ｍ2になるように円網抄紙機で抄紙後、表面温度１
３０℃のシリンダードライヤーで乾燥した後、撥水剤と
アクリルラテックスをサイズプレス装置で付与し乾燥さ
せて作製した。次に実施例１と同様の方法にて吸着剤の
封入及び貼り合わせ加工をし、実施例３の空気清浄化フ
ィルター部材を作製した。Example 3 A nonwoven fabric was prepared as the substrate B in the same manner as in Example 1. Next, a base material A was added with a sodium acrylate-based anionic surfactant (Primal 850, manufactured by Nippon Acrylic Chemicals Co., Ltd.) so as to be 1% by weight based on all fibers, and a fiber diameter of 0.1 denier × 6 mm was used. A cross-linked bond was introduced into an acrylic fiber, a carboxyl group and an amide group were introduced by a hydrolysis reaction, and then a Na-ion was added. The resulting metal cross-linked fiber, poly-p-phenylene terephthalamide fiber, was fibrillated with a homogenizer. Fibrillated organic fibers (filtration value: 30 seconds) were blended at a ratio of 65:35 each, dispersed at a dispersion concentration of 0.2% for 30 minutes, and dried at a dry weight of 100%.
g / m 2 , after making the paper with a round paper machine, surface temperature 1
After drying with a cylinder dryer at 30 ° C., a water repellent and acrylic latex were applied by a size press and dried. Next, an adsorbent was sealed and bonded in the same manner as in Example 1 to produce an air purification filter member of Example 3.
【００４６】作製した空気清浄化フィルター部材はＪＩ
Ｓ Ｂ ９９０８に準じた面風速５．３ｃｍ／秒で測定
した０．３μｍ粒子の捕集効率が９９．９９９％であっ
た。The prepared air cleaning filter member is JI
The collection efficiency of 0.3 μm particles measured at a surface wind speed of 5.3 cm / sec according to SB 9908 was 99.999%.
【００４７】実施例４ 基材Ｂとして不織布を、実施例１同様の方法にて作製し
た。次に基材Ａとしてカルボキシメチル基置換度０．２
２（ＤＳ＝０．２２）の変性ＮＢＫＰに、銀／２−メル
カプトピリジン−Ｎ−オキシドを吸着させた有機化合物
の金属塩よりなる抗菌防黴剤を含有する繊維状物質抗菌
ＮＢＫＰを作製した。上記の抗菌ＮＢＫＰ分散液に硝酸
銀を加え、ｐＨを５．５に調節してから、３０分間攪拌
する。０．１Ｍ／ｌの２−メルカプトピリジン−Ｎ−オ
キシドナトリウム液を、抗菌ＮＢＫＰ分散液に加えられ
た硝酸銀と等モル相当量を添加した。３０分間攪拌して
から、硫酸でｐＨを４まで下げた後、脱水した。脱水パ
ルプに、再び５００ｍｌの水を加え、攪拌水洗して脱水
した。これを、銀／２−メルカプトピリジン−Ｎ−オキ
シドを吸着させた有機化合物の金属塩よりなる抗菌防黴
剤を含有するカルボキシメチル基置換度０．２２（ＤＳ
＝０．２２）の抗菌ＮＢＫＰとした。Example 4 A nonwoven fabric was prepared as the substrate B in the same manner as in Example 1. Next, a carboxymethyl group substitution degree of 0.2 was used as the base material A.
2 (DS = 0.22) modified NBKP, a fibrous substance antibacterial NBKP containing an antibacterial fungicide made of a metal salt of an organic compound having silver / 2-mercaptopyridine-N-oxide adsorbed thereon was produced. Silver nitrate is added to the above antibacterial NBKP dispersion, the pH is adjusted to 5.5, and the mixture is stirred for 30 minutes. A 0.1 M / l sodium 2-mercaptopyridine-N-oxide solution was added in an equimolar amount to silver nitrate added to the antibacterial NBKP dispersion. After stirring for 30 minutes, the pH was reduced to 4 with sulfuric acid and then dehydrated. To the dehydrated pulp, 500 ml of water was again added, and the mixture was washed with stirring and dehydrated. This was replaced with a carboxymethyl group substitution degree of 0.22 (DS
= 0.22).
【００４８】２ｍ3の分散タンクにアクリル酸ソーダ系
アニオン性界面活性剤（日本アクリル化学社製、プライ
マル８５０）を全繊維に対して１％になるように添加
し、抗菌ＮＢＫＰ、複合繊維のＮＢＦ−Ｅ（芯：ポリプ
ロピレン、鞘：エチレンビニルアルコール：大和紡績
製）、水中溶解温度が７０℃のビニロンバインダー繊維
（ＶＰＢ１０７×１、３ｍｍ：クラレ製）を各々５０：
４４：６の比率で配合し、分散濃度０．２％で３０分間
分散した後、乾燥重量で７０g/ｍ2 になるように円網抄
紙機で抄紙後、表面温度１３０℃のシリンダードライヤ
ーで乾燥し作製した。 次に実施例１と同様の方法にて
吸着剤の封入及び貼り合わせ加工をし、実施例４の空気
清浄化フィルター部材を作製した。A sodium acrylate-based anionic surfactant (Primal 850, manufactured by Nippon Acrylic Chemicals Co., Ltd.) was added to a 2 m 3 dispersion tank so as to be 1% with respect to all fibers, and antibacterial NBKP and NBF of composite fibers were added. -E (core: polypropylene, sheath: ethylene vinyl alcohol: manufactured by Daiwa Spinning Co., Ltd.), and vinylon binder fibers (VPB107 × 1, 3 mm: manufactured by Kuraray) whose dissolution temperature in water is 70 ° C. are each 50:
After mixing at a ratio of 44: 6 and dispersing at a dispersion concentration of 0.2% for 30 minutes, the paper was made with a circular paper machine so as to have a dry weight of 70 g / m 2 and then dried with a cylinder dryer having a surface temperature of 130 ° C. It was produced. Next, an adsorbent was sealed and bonded in the same manner as in Example 1 to produce an air cleaning filter member of Example 4.
【００４９】実施例４で作製した空気清浄化フィルター
部材はＪＩＳ Ｂ ９９０８に準じた面風速５．３ｃｍ
／秒で測定した０．３μｍ粒子の捕集効率が７０．８１
０％であった。The air cleaning filter member produced in Example 4 had a surface wind velocity of 5.3 cm according to JIS B 9908.
Collection efficiency of 0.3 μm particles measured at 70/81
It was 0%.
【００５０】比較例１ 基材Ａとして不織布を、実施例１と同様の方法にて作製
した。次に基材Ｂとして不織布を、実施例１同様の方法
にて作製した。吸着剤を仕様せず５０メッシュの熱可塑
性バインダーであるエチレン酢酸ビニール樹脂粉体のみ
を用いて基材Ａの不織布に４０ｇ／ｍ2となるよう散布
し、加熱により基材Ｂの除塵シートと貼り合わせたて比
較例１の空気清浄化フィルター部材を作製した。Comparative Example 1 A nonwoven fabric was prepared as the substrate A in the same manner as in Example 1. Next, a nonwoven fabric was prepared as the base material B in the same manner as in Example 1. Spraying the nonwoven fabric of the base material A at 40 g / m 2 using only a 50-mesh thermoplastic binder, ethylene vinyl acetate resin powder without using an adsorbent, and applying it to the dust removal sheet of the base material B by heating In addition, an air cleaning filter member of Comparative Example 1 was produced.
【００５１】以上、実施例および比較例で得られた空気
清浄化フィルター部材は、以下の方法で試験を行い、そ
の性能を評価した。The air-cleaning filter members obtained in Examples and Comparative Examples were tested by the following methods to evaluate the performance.
【００５２】［脱臭性能］空気清浄化フィルター部材を
１０ｃｍ×１０ｃｍに裁断し、５．６リットルの密閉容
器の底部からの距離が２ｃｍとなるように静置した。容
器中にアセトアルデヒドを１００ｐｐｍ注入し、２０分
間放置した後の容器中のアセトアルデヒド濃度（ｐｐ
ｍ）をガスクロマトグラフで測定した。[Deodorizing Performance] The air-cleaning filter member was cut into a size of 10 cm × 10 cm and allowed to stand at a distance of 2 cm from the bottom of a 5.6 liter closed container. 100 ppm of acetaldehyde was injected into the container, and after standing for 20 minutes, the concentration of acetaldehyde in the container (pp
m) was measured by gas chromatography.
【００５３】［通気性］光触媒フィルターの通気性（cm
3／cm2・秒）は、ＪＩＳ Ｌ １０９６に準じてフラジー
ル形試験機を用いて測定した。[Air permeability] Air permeability of the photocatalytic filter (cm
3 / cm 2 · sec) was measured using a Frazier-type tester according to JIS L 1096.
【００５４】以上の試験項目の結果を表１に示す。Table 1 shows the results of the above test items.
【００５５】[0055]
【表１】 [Table 1]
【００５６】＜試験法−（抗菌（殺菌）性）＞大腸菌
（Ｅ−ｃｏｌｉ ＩＦＯ３３０１）を液体培地（ペプト
ン・イースト）で２４時間前培養し、希釈して２×１０
8 セル／ｍｌの試験液を調整した。試験片を２ｃｍ×２
ｃｍにカットして、ペトリ皿上に配置し、パスツールピ
ペットで上記菌液を５滴（約０．１ｍｌ）滴下し、乾燥
しないようにカバーして３８℃で２４時間経時した。経
時後、試験片のそれぞれをＮｕｔｒｉｅｎｔ Ｂｒｏｔ
ｈ寒天培地上に押し当て、試験片上の菌を転写させて剥
離し、再度３８℃で２４時間培養し、観察した。評価
は、次のとおりとした。 評価グレード −− 殆ど完全に殺菌し、菌の成育がない。 − ２ｃｍ×２ｃｍ転写面に５コロニー以下の成育
はあるが、殆ど完全に殺菌。 ＋ ２ｃｍ×２ｃｍ転写面に100コロニー以下で良
好な抗・殺菌作用。 ＋＋ ２ｃｍ×２ｃｍ転写面に効果は認められるが、
弱いか、少ない。 ＋＋＋ ２ｃｍ×２ｃｍ転写面に実質的効果なし。<Test Method— (Antibacterial)) E. coli (E-coli IFO3301) was pre-cultured in a liquid medium (peptone yeast) for 24 hours, diluted and diluted to 2 × 10
A test solution of 8 cells / ml was prepared. Test piece 2cm x 2
cm, placed on a Petri dish, 5 drops (approximately 0.1 ml) of the above bacterial solution was dropped with a Pasteur pipette, covered so as not to dry, and aged at 38 ° C. for 24 hours. After a lapse of time, each of the test pieces was replaced with Nutrient Brot.
h Pressed on an agar medium, transferred the bacteria on the test piece, peeled off, cultured again at 38 ° C for 24 hours, and observed. The evaluation was as follows. Evaluation grade --- Almost completely sterilized, with no growth of bacteria. -Growth of 5 colonies or less on the 2cm x 2cm transfer surface, but almost completely sterilized. + Good anti-bacterial effect with less than 100 colonies on the 2cm x 2cm transfer surface. ++ 2cm × 2cm Although the effect is recognized on the transfer surface,
Weak or less. ++++ 2cm × 2cm No substantial effect on transfer surface.
【００５７】＜試験法−（防黴性）＞試験菌株とし
て、黒カビ（Ａｓｐｅｒｇｉｌｌｕｓ ｎｉｇｅｒ）を
用いた。斜面培地から胞子を５白金耳採り、少量の湿潤
剤（スルホコハク酸ジオクチルナトリウム液）を加え、
激しく振って胞子を分散させ、ガーゼで濾過し、全量を
５０ｍｌに調整した。１．５％の寒天を加えたＧＰ培地
（日本製薬社製）を作り、上記菌液を均一に噴霧し、一
旦、表面を乾燥させ、２ｃｍ×２ｃｍにカットした試料
片を乗せ、十分に圧着させ、再度試験菌を全面に噴霧し
て、２８℃で経時培養し、最高４週間まで経時観察し
た。なお、表１には、４週間経時の観察結果を記載し
た。評価は、次のとおりとした。 評価グレード −− 黴の生育を完全に阻害。 − 黴の生育か否か判断がつきかねる。 ＋ かなり良好な制御力を示すが表面積1/5以下に
カビの生育を認める。 ＋＋ 表面積１／３位にカビの生育が認められる。 ＋＋＋ 全面に黴が生育する。<Test method-(antifungal property)> As a test strain, black mold (Aspergillus niger) was used. Take 5 platinum loops of spores from the slant medium, add a small amount of wetting agent (dioctyl sodium sulfosuccinate solution),
The spores were dispersed by shaking vigorously, filtered through gauze, and adjusted to a total volume of 50 ml. A GP medium (manufactured by Nippon Pharmaceutical Co., Ltd.) to which 1.5% agar was added was prepared, the above bacterial solution was sprayed uniformly, the surface was once dried, and a sample piece cut into 2 cm × 2 cm was placed thereon and sufficiently pressed. The test bacteria were again sprayed on the entire surface, cultured at 28 ° C. over time, and observed over time for up to 4 weeks. Table 1 shows the observation results over a period of 4 weeks. The evaluation was as follows. Evaluation grade --- Completely inhibits mold growth. -It is difficult to judge whether mold is growing or not. + Shows fairly good controllability, but shows mold growth below 1/5 of the surface area. ++ Mold growth is observed at 1/3 of the surface area. ++ Mold grows on the entire surface.
【００５８】＜試験法−（雑菌テスト）＞室内倉庫よ
り塵埃０．３グラムを採取し、水１００ミリリットル中
に加え、ホモミキサーで分散した液をガーゼで濾過して
試験菌とした。評価は、試験法−と同様であるが、菌
液を１週間毎に最高５回まで繰り返し噴霧した。なお、
表１には、１週間毎に５回まで繰り返し噴霧したときの
観察結果を記載した。<Test Method-(Bacterial Test)> 0.3 g of dust was collected from an indoor warehouse, added to 100 ml of water, and the liquid dispersed with a homomixer was filtered with a gauze to obtain test bacteria. The evaluation was the same as in the test method-except that the bacterial solution was repeatedly sprayed up to 5 times every week. In addition,
Table 1 shows the observation results when spraying was repeated up to five times every week.
【００５９】以上の試験項目の結果を表２に示す。Table 2 shows the results of the above test items.
【００６０】[0060]
【表２】 [Table 2]
【００６１】実施例５ 実施例１の空気清浄化フィルター部材をプリーツ状に加
工してフィルターユニット（空気清浄化フィルター部材
の使用量＝約１m2）を基材Ｂが上流側になるよう実施例
５を作製し、該フィルターユニットと３０Ｗのシロッコ
ファンを組み合わせ、実験用の空気清浄機を作製した。Fifth Embodiment The air cleaning filter member of the first embodiment is processed into a pleated shape so that a filter unit (used amount of the air cleaning filter member = about 1 m 2 ) is set so that the base material B is on the upstream side. 5 was fabricated, and the filter unit and a 30 W sirocco fan were combined to prepare an experimental air purifier.
【００６２】比較例２ 次に実施例１空気清浄化フィルター部材をプリーツ状に
加工してフィルターユニット（空気清浄化フィルター部
材の使用量＝約１m2）を基材Ａが上流側になるよう比較
例２を作製し、該フィルターユニットと３０Ｗのシロッ
コファンを組み合わせ、実験用の空気清浄機を作製し
た。Comparative Example 2 Next, the air purifying filter member was processed into a pleated shape and the filter unit (the amount of the air purifying filter member used: about 1 m 2 ) was compared so that the base material A was on the upstream side. Example 2 was prepared, and the filter unit and a 30 W sirocco fan were combined to prepare an experimental air purifier.
【００６３】［フィルター評価］該空気清浄機のアセト
アルデヒド除去性能およびタバコ煙粒子除去性能を指標
として、実施例５および比較例２のフィルターユニット
のフィルター性能を評価した。[Filter Evaluation] The filter performance of the filter units of Example 5 and Comparative Example 2 was evaluated using the acetaldehyde removal performance and the tobacco smoke particle removal performance of the air purifier as indices.
【００６４】まず、１m3のステンレス製の密閉容器中に
空気清浄機を静置し、容器中にアセトアルデヒドを１０
ｐｐｍ注入、空気清浄機を３０分間作動させた後、容器
中のアセトアルデヒド濃度（Ｃ：ｐｐｍ）をガスクロマ
トグラフで測定し、アセトアルデヒドの除去率（％：１
００×（１０−Ｃ）／１０）を求めた。次に、容器中に
マイルドセブン５本分のタバコ煙を注入した後、空気清
浄機を３０分間作動させた。タバコ煙注入直後の容器中
の浮遊粉塵量（Ｘ：mg／m3）、空気清浄機作動後の容器
中の浮遊粉塵量（Ｙ：mg／m3）を粉塵計で測定し、タバ
コ煙粒子の除去率（％：１００×（Ｘ−Ｙ）／Ｘ）を求
めた。First, the air purifier was allowed to stand still in a 1 m 3 stainless steel sealed container, and 10 ml of acetaldehyde was added to the container.
After injecting ppm and operating the air purifier for 30 minutes, the acetaldehyde concentration (C: ppm) in the container was measured by gas chromatography, and the acetaldehyde removal rate (%: 1)
00 × (10−C) / 10). Next, after five mild seven cigarette smokes were injected into the container, the air purifier was operated for 30 minutes. The amount of airborne dust in the container immediately after the injection of tobacco smoke (X: mg / m 3 ) and the amount of airborne dust in the container after the operation of the air cleaner (Y: mg / m 3 ) were measured with a dust meter, and the amount of tobacco smoke particles was measured. Was determined (%: 100 × (XY) / X).
【００６５】以上の試験項目の結果を表３に示す。Table 3 shows the results of the above test items.
【００６６】[0066]
【表３】 [Table 3]
【００６７】実施例１〜４の空気清浄化フィルター部材
は、何れの評価項目についても良好な結果を示した。実
施例５は比較例２に比べアセトアルデヒド除去率、タバ
コ煙粒子除去率共に優れた結果を示した。これはおそら
く集塵効率の優れる基材Ｂを上流側に配置することによ
り効率的にタバコの煙粒子（オイルミスト）の除去が行
われ脱臭性能が向上するものと思われる。また、実施例
４の空気清浄化フィルター部材は、良好な抗菌・防黴効
果が認められた。The air-cleaning filter members of Examples 1 to 4 showed good results for all evaluation items. Example 5 showed excellent results in both acetaldehyde removal rate and tobacco smoke particle removal rate as compared with Comparative Example 2. This is presumably because, by arranging the base material B having excellent dust collection efficiency on the upstream side, the smoke particles (oil mist) of tobacco are efficiently removed and the deodorizing performance is improved. Further, the air cleaning filter member of Example 4 was found to have good antibacterial and antifungal effects.
【００６８】[0068]
【発明の効果】本発明の空気清浄化フィルター部材は、
圧力損失を増加させることなしに脱臭および除塵を行う
ことが可能であり、かつ抗菌防黴剤を空気清浄化フィル
ター部材に含有することにより抗菌・防黴に効果的であ
った。基材Ａおよび基材Ｂが不織布であることにより空
気清浄化フィルター部材の作業性の向上、通気性の向上
が得られた。また、基材Ａを上流側にして使用した空気
清浄化フィルター部材は、極めて優れた除塵・脱臭性能
を有し、例えば、アセトアルデヒド除去性能、タバコ煙
粒子除去性能において、優れた効果を示した。According to the air purifying filter member of the present invention,
Deodorization and dust removal were possible without increasing pressure loss, and the addition of an antibacterial and fungicide to the air-cleaning filter member was effective for antibacterial and fungicide. Since the base material A and the base material B are nonwoven fabrics, the workability and air permeability of the air cleaning filter member were improved. Further, the air purification filter member used with the base material A on the upstream side had extremely excellent dust removing and deodorizing performance, and exhibited excellent effects in, for example, acetaldehyde removing performance and tobacco smoke particle removing performance.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｂ０１Ｄ 53/81 Ｄ２１Ｈ 21/36 ４Ｌ０３３ Ｄ０６Ｍ 13/355 Ｂ０１Ｄ 53/34 Ａ ４Ｌ０５５ Ｄ２１Ｈ 21/36 Ｄ２１Ｈ 5/22 Ｄ Ｆターム(参考） 4C080 AA05 BB02 BB05 CC02 CC12 CC14 HH05 JJ03 JJ05 JJ09 LL10 MM19 NN24 NN25 NN26 NN27 NN28 QQ01 QQ03 4D002 AA32 AB02 BA04 BA14 CA07 DA06 DA11 DA18 DA19 DA21 DA41 DA45 DA46 DA47 FA01 GA01 GB12 GB20 HA01 4D012 CA09 CA10 CB03 CB05 CG01 CG04 CH01 CK10 4D019 AA01 AA02 BA13 BA17 BB03 BC01 BC05 BC06 BC10 CA10 4D058 JA12 JB03 JB04 JB05 JB06 JB14 JB25 JB34 JB39 JB50 NA02 SA13 SA15 TA02 TA03 TA07 4L033 AC10 AC15 BA56 CA12 CA18 CA28 CA68 DA02 4L055 CD13 FA30 GA27 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI theme coat ゛ (Reference) B01D 53/81 D21H 21/36 4L033 D06M 13/355 B01D 53/34 A 4L055 D21H 21/36 D21H 5/22 DF term (reference) 4C080 AA05 BB02 BB05 CC02 CC12 CC14 HH05 JJ03 JJ05 JJ09 LL10 MM19 NN24 NN25 NN26 NN27 NN28 QQ01 QQ03 4D002 AA32 AB02 BA04 BA14 CA07 DA06 DA11 DA18 DA19 DA21 DA41 DA01 GA01 CB012 CB05 CG01 CG04 CH01 CK10 4D019 AA01 AA02 BA13 BA17 BB03 BC01 BC05 BC06 BC10 CA10 4D058 JA12 JB03 JB04 JB05 JB06 JB14 JB25 JB34 JB39 JB50 NA02 SA13 SA15 TA02 TA03 TA07 4L033 AC10 CA15 CA56 CA55 CA55
Claims (6)
なる部材であり、基材Ｂが除塵性シートであることを特
徴とする空気清浄化フィルター部材。1. An air-cleaning filter member comprising an adsorbent sealed between a base material A and a base material B, wherein the base material B is a dust-removable sheet.
面風速５．３ｃｍ／秒で測定した０．３μｍ粒子の捕集
効率が２０％以上であることを特徴とする請求項１記載
の空気清浄化フィルター部材。2. The air according to claim 1, wherein the substrate B has a collection efficiency of 0.3 μm particles measured at a surface wind speed of 5.3 cm / sec according to JIS B 9908 of 20% or more. Cleaning filter member.
ずれかを含む有機化合物がベンゾイミダゾール化合物、
メルカプトピリジン−Ｎ−オキシド化合物、イソチアゾ
ロン化合物、ベンゾチアゾール化合物もしくはベンゾチ
アゾロン化合物から選ばれる少なくとも１種の化合物の
銀塩、銅塩、亜鉛塩のいずれか１種である金属塩よりな
る抗菌防黴剤を含有することを特徴とする請求項１また
は２記載の空気清浄化フィルター部材。3. An organic compound containing at least one of a nitrogen-containing heterocyclic ring and a sulfur atom is a benzimidazole compound,
An antibacterial and antifungal agent comprising a metal salt that is at least one of a silver salt, a copper salt, and a zinc salt of at least one compound selected from mercaptopyridine-N-oxide compounds, isothiazolone compounds, benzothiazole compounds or benzothiazolone compounds. The air purifying filter member according to claim 1, wherein the filter member is contained.
特徴とする請求項３記載の空気清浄化フィルター部材。4. The air purifying filter member according to claim 3, wherein the substrate A contains the antibacterial and fungicide.
を特徴とする請求項１、２、３または４記載の空気清浄
化フィルター部材。5. The air cleaning filter member according to claim 1, wherein the base material A and the base material B are nonwoven fabrics.
徴とする請求項１、２、３、４または５記載の空気清浄
化フィルター部材の使用方法。6. The method for using an air cleaning filter member according to claim 1, wherein the base material B is used on the upstream side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10244514A JP2000070646A (en) | 1998-08-31 | 1998-08-31 | Air purifying filter member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10244514A JP2000070646A (en) | 1998-08-31 | 1998-08-31 | Air purifying filter member |
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| Publication Number | Publication Date |
|---|---|
| JP2000070646A true JP2000070646A (en) | 2000-03-07 |
Family
ID=17119819
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
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| Country | Link |
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