JPH11267236A - Antimicrobial electrification filter - Google Patents
Antimicrobial electrification filterInfo
- Publication number
- JPH11267236A JPH11267236A JP9093098A JP9093098A JPH11267236A JP H11267236 A JPH11267236 A JP H11267236A JP 9093098 A JP9093098 A JP 9093098A JP 9093098 A JP9093098 A JP 9093098A JP H11267236 A JPH11267236 A JP H11267236A
- Authority
- JP
- Japan
- Prior art keywords
- antimicrobial
- filter
- antibacterial
- base fabric
- 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
- Respiratory Apparatuses And Protective Means (AREA)
- Filtering Materials (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、成形マスク、ガ
ーゼマスクなどのマスク用ろ材やその他のエアフィルタ
ーに用いて好適な抗菌性帯電フィルターに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antibacterial charging filter suitable for use as a filter medium for a mask such as a molding mask or a gauze mask or other air filters.
【０００２】[0002]
【従来の技術】近年、細菌やかびなどの微生物による様
々な影響を軽減するため、種々の用途で抗菌性商品が開
発、実用化されている。そのうち、空気を濾過するため
のフィルターは、空気浄化が進むにつれてフィルターに
捕捉された塵埃が蓄積し、微生物の温床となってしま
う。このような状態のフィルターは、病原性の微生物の
みならず、悪臭を発生する微生物をも担持するため、従
来から抗菌性を付与することが盛んに行われてきた。フ
ィルターのような繊維製品に抗菌性を付与する手段とし
て、抗菌性物質をバインダによって繊維表面に付着させ
る技術は広く知られている。2. Description of the Related Art In recent years, antibacterial products have been developed and put to practical use for various uses in order to reduce various effects of microorganisms such as bacteria and fungi. Among them, a filter for filtering air accumulates dust captured by the filter as air purification proceeds, and becomes a hotbed of microorganisms. Since a filter in such a state carries not only pathogenic microorganisms but also microorganisms that generate an odor, antibacterial properties have conventionally been actively provided. As a means for imparting antibacterial properties to a fiber product such as a filter, a technique of attaching an antibacterial substance to a fiber surface with a binder is widely known.
【０００３】[0003]
【発明が解決しようとする課題】一方、フィルターに期
待される機能は塵埃を捕集することにあるが、この捕集
効率を高めるために、フィルターを構成する繊維に対し
て帯電処理が行われてきた。しかしながら、抗菌剤をバ
インダで添着する場合、上記繊維がバインダで被覆され
てしまい、帯電処理後の捕集効率向上を図ることが難し
いという問題点が有った。また、エレクトレット化され
たフィルター層と抗菌剤をバインダ添着したフィルター
層とを積層する手段も考えられる。ところが、塵埃は主
としてエレクトレット化された層に捕捉されるものであ
るが、この微生物を捕捉した層に対して他層に添着され
た抗菌剤の効果は必ずしも期待できない。さらに、バイ
ンダを用いて繊維を被覆するため、フィルターを構成す
る繊維が設計された繊維径よりも太くなってしまい、圧
力損失の上昇すら来すという問題が生じる。On the other hand, the function expected of the filter is to collect dust, but in order to increase the collection efficiency, the fibers constituting the filter are charged. Have been. However, when the antibacterial agent is impregnated with a binder, the fibers are covered with the binder, and there is a problem that it is difficult to improve the collection efficiency after the charging treatment. Alternatively, a means for laminating an electret filter layer and a filter layer to which an antimicrobial agent is added with a binder may be considered. However, dust is mainly captured in the electretized layer, but the effect of the antibacterial agent attached to the other layer on the layer capturing the microorganism cannot always be expected. Further, since the fibers are coated with the binder, the fibers constituting the filter become thicker than the designed fiber diameter, and there is a problem that the pressure loss even increases.
【０００４】さらには、抗菌剤を練り込んだ繊維でフィ
ルターを構成する技術も知られているが、抗菌剤の種類
によっては繊維自体が着色したり、或いは経時的に変色
するなどの欠点があった。この様な欠点を改善する技術
として、例えば特開平９−１３２８６９号公報に開示さ
れる技術のように、特定の抗菌剤を繊維に練り込んだ技
術も提案されている。しかし、この種の技術の場合、繊
維内に練り込んだ抗菌剤成分が、所謂、ブリーディング
と称される現象によって繊維表面に析出する必要があ
り、当該繊維表面での抗菌剤成分の濃度制御自体が難し
く、安定した抗菌効果を期待することが難しいという問
題が有った。[0004] Further, there is also known a technique of forming a filter with a fiber into which an antibacterial agent is kneaded, but there is a drawback such that the fiber itself is colored or discolored with time depending on the kind of the antibacterial agent. Was. As a technique for improving such a defect, a technique in which a specific antibacterial agent is kneaded into fibers has been proposed, for example, a technique disclosed in JP-A-9-132869. However, in the case of this type of technology, the antibacterial agent component kneaded in the fiber needs to be deposited on the fiber surface by a phenomenon called bleeding, and the concentration control of the antibacterial agent component on the fiber surface itself is required. And it is difficult to expect a stable antibacterial effect.
【０００５】本出願に係る発明者は、上述した問題点の
解決を図るため、帯電効果を阻害することなく、実用上
充分な抗菌性を付与し得る技術について鋭意検討を重ね
た結果、本発明を完成するに至った。The inventor of the present application has conducted intensive studies on a technique capable of imparting a practically sufficient antibacterial property without impairing the charging effect in order to solve the above-mentioned problems. Was completed.
【０００６】従って、本発明の目的は、圧力損失が低
く、しかも捕集効率に優れる帯電処理を阻害することな
く、抗菌性にも優れた抗菌性帯電フィルターを提供する
ことにある。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an antibacterial charging filter having a low pressure loss and excellent antibacterial properties without inhibiting a charging process which is excellent in collection efficiency.
【０００７】[0007]
【課題を解決するための手段】この目的の達成を図るた
め、この発明の抗菌性帯電フィルターの構成によれば、
基布を構成する繊維に抗菌性微粒子を被着してなり、か
つ上述した繊維がエレクトレット化されてなることを特
徴としている。In order to achieve this object, according to the structure of the antibacterial charging filter of the present invention,
It is characterized in that the fibers constituting the base fabric are coated with antibacterial fine particles, and the above-mentioned fibers are electretized.
【０００８】[0008]
【発明の実施の形態】以下、この発明の抗菌性帯電フィ
ルターの実施の形態につき説明する。まず、本発明のフ
ィルターを構成する基布は、塵埃を捕捉し得る繊維集合
体であれば特に限定されるものではない。従って、織
布、編布或いは不織布のいずれから構成されていても良
いが、効率的に捕集を行うことができ、しかも比較的低
い圧力損失を低コストで実現し得る、不織布を用いるの
が最も好ましい。基布を構成する繊維としては、エレク
トレット化が可能な合成樹脂を主体とすれば良く、好適
には、ポリオレフィン系繊維、ポリエステル系繊維、ア
クリル繊維などが挙げられる。さらに、これら繊維が単
一構造を有する繊維である場合に限らず、高融点成分と
低融点成分とで構成された熱接着性を有する複合繊維
や、異なる熱収縮率を有する複数の樹脂成分からなり、
所定の熱処理によって捲縮を発現する複合繊維などであ
っても良く、例えばマスク用に用いる場合には、呼気に
含まれる水分を保持するためにレーヨンなどの吸湿性繊
維を配合しても良い。加えて、基布の面密度や厚さなど
は、用途に応じて設計することが出来る。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the antibacterial charging filter of the present invention will be described. First, the base fabric constituting the filter of the present invention is not particularly limited as long as it is a fiber aggregate that can capture dust. Therefore, it may be composed of any of woven fabric, knitted fabric or nonwoven fabric, but it is preferable to use nonwoven fabric which can collect efficiently and can realize relatively low pressure loss at low cost. Most preferred. The fibers constituting the base fabric may be mainly made of a synthetic resin that can be electretized, and preferably include polyolefin-based fibers, polyester-based fibers, and acrylic fibers. Furthermore, not only when these fibers are fibers having a single structure, but also from a composite fiber having thermal adhesion composed of a high melting point component and a low melting point component, and a plurality of resin components having different heat shrinkage rates. Become
It may be a conjugate fiber or the like that develops a crimp by a predetermined heat treatment. For example, when used for a mask, a hygroscopic fiber such as rayon may be blended in order to retain moisture contained in breath. In addition, the surface density, thickness, etc. of the base fabric can be designed according to the application.
【０００９】また、不織布を基布として用いる場合、ス
パンボンド法やメルトブロー法などによる長繊維の使
用、カード法や湿式法などによる短繊維の使用、または
これらの併用など、種々の手段を採ることができる。こ
の際、基布に所望の強度を付与する目的で、ニードルパ
ンチ法、高圧水流絡合法など周知の繊維絡合技術を用い
ても良い。When a non-woven fabric is used as a base fabric, various means such as use of long fibers by a spunbond method or a melt blow method, use of short fibers by a card method or a wet method, or a combination thereof may be employed. Can be. At this time, a known fiber entanglement technique such as a needle punch method or a high-pressure water entanglement method may be used for imparting a desired strength to the base fabric.
【００１０】この発明で利用し得る抗菌性微粒子とし
て、例えば特開平７−２４３１８０号公報或いは特開平
９−１３２６９号公報に開示されているものを挙げるこ
とができる。後段に述べるように、本発明の抗菌性帯電
フィルターを作製するためには、例えば水などに抗菌性
微粒子を分散させ、この分散液中に基布を含浸、乾燥さ
せる工程を経るものである。従って、本発明で用いて好
適な抗菌性微粒子は、所望とする抗菌性を有すること並
びに分散液を調製できることを満足すればよい。即ち、
本発明の目的を達成するのに好適な抗菌性微粒子素材と
しては、その後の帯電処理により良好なエレクトレット
化を図り得ることから無機系抗菌剤が好ましく、さらに
は人体への影響が比較的小さな銀、銅、亜鉛といった金
属を挙げることができる。また、これら抗菌性金属をコ
ロイド化するため、種々のゼオライト、シリカアルミナ
マグネシウム、リン酸ジルコニウム、リン酸カルシウ
ム、ケイ酸カルシウム、酸化チタン、酸化アルミニウ
ム、酸化錫、酸化鉄、酸化ジルコニウムなどを担持体と
して、これに上述した抗菌性金属を担持させたものを抗
菌性微粒子として用いるのが良い。As the antibacterial fine particles usable in the present invention, for example, those disclosed in JP-A-7-243180 or JP-A-9-13269 can be mentioned. As will be described later, in order to produce the antibacterial charging filter of the present invention, for example, a process of dispersing antibacterial fine particles in water or the like, impregnating the dispersion with a base cloth, and drying is performed. Therefore, antibacterial fine particles suitable for use in the present invention only have to satisfy the desired antibacterial properties and to be able to prepare a dispersion. That is,
As the antibacterial fine particle material suitable for achieving the object of the present invention, an inorganic antibacterial agent is preferable because a favorable electretization can be achieved by subsequent charging treatment, and furthermore, silver having a relatively small effect on the human body is preferred. , Copper, zinc and the like. In addition, in order to form a colloid of these antibacterial metals, various zeolites, silica alumina magnesium, zirconium phosphate, calcium phosphate, calcium silicate, titanium oxide, aluminum oxide, tin oxide, iron oxide, zirconium oxide as a carrier, What carries the above-described antibacterial metal is preferably used as antibacterial fine particles.
【００１１】さらに、上述した抗菌性微粒子を基布に被
着させるために、当該微粒子は分散性を有することが必
要である。この分散を安定して実現するためには、前述
の公報に開示されるように、抗菌性微粒子の粒径を３
(ｎｍ)以上１μｍ以下、より好ましくはコロイド形成能
を有する３(ｎｍ)以上１００ｎｍ以下程度とするのが好
適である。このようなコロイド形成能を有する抗菌性微
粒子で有れば、基布への被着を安定して行うことができ
るのみならず、本発明に適用される帯電処理に際してス
パークを生じる恐れも少ない。Further, in order to adhere the above-mentioned antimicrobial fine particles to the base cloth, the fine particles need to have dispersibility. In order to stably realize this dispersion, as disclosed in the above-mentioned publication, the particle size of the antimicrobial
(nm) or more and 1 μm or less, more preferably about 3 (nm) or more and about 100 nm or less having a colloid-forming ability. If the antimicrobial fine particles having such a colloid-forming ability can be stably adhered to the base cloth, sparks are less likely to occur during the charging treatment applied to the present invention.
【００１２】また、抗菌性微粒子の基布への被着量は、
抗菌性帯電フィルターの用途、抗菌性を期待する微生物
の種類によって種々に設計することができる。例えば抗
菌性金属として銀を用いる場合には、抗菌性帯電フィル
ター重量に対する銀の被着量の割合が１ｐｐｍ以上とす
るのが好適である。The amount of the antimicrobial fine particles deposited on the base cloth is as follows:
Various designs can be made depending on the use of the antibacterial charging filter and the type of microorganisms expected to have antibacterial properties. For example, when silver is used as the antibacterial metal, it is preferable that the ratio of the amount of silver applied to the weight of the antibacterial charging filter be 1 ppm or more.
【００１３】[0013]
【実施例】以下、この発明の実施例として、フィルター
特性及び抗菌性に関する評価を行った結果につき説明す
る。尚、以下の説明では特定条件を例示して説明する
が、この発明は、これら実施例にのみ限定されるもので
はない。EXAMPLES As examples of the present invention, results of evaluation on filter characteristics and antibacterial properties will be described below. In the following description, specific conditions will be described as examples, but the present invention is not limited to only these examples.
【００１４】始めに、この実施例で用いた基布につき説
明する。まず、市販のポリプロピレン短繊維をカード機
にかけてウエブを調製した後、これに１０ＭＰａの高圧
水流をあてて絡合を施し、面密度５０(ｇ／ｍ2)の基布
を得た。First, the base fabric used in this embodiment will be described. First, a commercially available polypropylene short fiber was used for a card machine to prepare a web, which was then entangled by applying a high-pressure water stream of 10 MPa to obtain a base cloth having an areal density of 50 (g / m 2 ).
【００１５】次いで、市販の抗菌性微粒子分散材である
「アトミーボール−Ｓ」(触媒化成工業株式会社製，商品
名：酸化チタンに銀を担持した平均粒径約５(ｎｍ)の抗
菌性微粒子の１．５mass％水分散液)を水によって５０
倍に希釈し、最終的な抗菌性微粒子の濃度が０．０３ma
ss％分散液を調製した。然る後、上述した基布をこの分
散液に含浸し、所定の分散液保持量にまで絞った後に乾
燥した。これにより、抗菌性微粒子の被着後の基布重量
に対する当該微粒子の被着重量の割合が約６０(ｐｐｍ)
(被着した銀−重量に換算して約２．５(ｐｐｍ))の基布
を得た。Next, "Atomie Ball-S", a commercially available antibacterial fine particle dispersing agent (trade name, manufactured by Catalyst Kasei Kogyo Co., Ltd., trade name: antibacterial agent having an average particle size of about 5 (nm) in which silver is supported on titanium oxide). A 1.5 mass% aqueous dispersion of fine particles) is
Dilution by a factor of 2 and a final concentration of antibacterial particles of 0.03ma
An ss% dispersion was prepared. Thereafter, the above-described base cloth was impregnated with the dispersion, squeezed to a predetermined dispersion holding amount, and dried. Thereby, the ratio of the weight of the fine particles to the weight of the base cloth after the fine particles are applied is about 60 (ppm).
(Approximately 2.5 (ppm) in terms of the weight of the applied silver) was obtained.
【００１６】続いて、この状態の基布に対して定法に従
ってコロナ放電による帯電処理を行い、実施例に係る抗
菌性帯電フィルターを得た。また、この実施例に係るフ
ィルターとは、抗菌性微粒子を被着させずに同一の条件
で調製した比較例１に係る帯電フィルターを作製した。
さらに、比較例２として、市販のアクリルバインダーを
約１１mass％添着させ、実施例と同様な帯電処理を施し
たフィルターを得た。Subsequently, the base cloth in this state was subjected to a charging treatment by corona discharge according to a standard method to obtain an antibacterial charging filter according to the example. Further, the filter according to this example was a charged filter according to Comparative Example 1, which was prepared under the same conditions without adhering antimicrobial fine particles.
Further, as Comparative Example 2, a filter was obtained in which a commercially available acrylic binder was impregnated at about 11 mass% and subjected to the same charging treatment as in the example.
【００１７】以下、これら３つのフィルターを評価した
結果について説明する。まず、本発明の目的であるフィ
ルターとしての機能のうち、帯電処理による効果を検証
した。測定に当たっては、労働省告示「防じんマスクの
規格」に準じて、吸気抵抗値と捕集効率とを試験測定し
た。始めに、前述した夫々のフィルターを２枚重ね合わ
せてろ過面を直径８５(ｍｍ)に規定し得る測定セルに装
着する。この状態で、直径が２(μｍ)以下であって数量
平均径が０．５(μｍ)のシリカダストを試験粉じんに用
い、粉塵濃度が３０±５(ｍｇ／ｍ3)となるように試験
粉じん含有空気を調製して試験を実施した。また、試験
粉塵含有空気の流量は、捕集効率の測定を行う場合には
３０(Ｌ／ｍｉｎ)、吸気抵抗の測定を行う場合には４０
(Ｌ／ｍｉｎ)とした。これら夫々のフィルターの測定結
果を表１に示す。Hereinafter, the results of evaluating these three filters will be described. First, among the functions of the filter as the object of the present invention, the effect of the charging treatment was verified. In the measurement, the intake air resistance value and the collection efficiency were tested and measured in accordance with the notification of the Ministry of Labor, “Standards for dust masks”. First, two of the above-described filters are superimposed on each other and mounted on a measuring cell capable of defining a filtration surface with a diameter of 85 (mm). In this state, a silica dust having a diameter of 2 (μm) or less and a number average diameter of 0.5 (μm) was used as a test dust, and a test was performed so that the dust concentration was 30 ± 5 (mg / m 3 ). The test was carried out by preparing dust-containing air. The flow rate of the test dust-containing air is 30 (L / min) when the collection efficiency is measured, and 40 (L / min) when the intake resistance is measured.
(L / min). Table 1 shows the measurement results of these filters.
【００１８】[0018]
【表１】 [Table 1]
【００１９】この表１に示すように、実施例と比較例１
との比較から、本発明を適用することにより、抗菌剤で
ある微粒子被着を経た後でも、圧力損失に相当する初期
吸気抵抗の上昇並びに捕集効率の低下を来していないこ
とが理解できる。また、実施例と比較例２との比較で
は、バインダを被着させることによって初期吸気抵抗が
上昇し、かつ帯電による捕集効率の向上が実質的に望め
ないことが確認された。As shown in Table 1, Examples and Comparative Example 1
From the comparison with the above, it can be understood that the application of the present invention does not cause an increase in the initial intake resistance corresponding to the pressure loss and a decrease in the collection efficiency even after passing through the fine particles as the antibacterial agent. . In addition, in comparison between the example and comparative example 2, it was confirmed that the initial suction resistance was increased by applying the binder, and the collection efficiency due to charging could not be substantially improved.
【００２０】次いで、抗菌性評価を行った結果につき説
明する。この抗菌性評価は、帯電処理による効果が確認
された実施例と、対照となる比較例１との２つのサンプ
ルについて行った。また、評価試験は財団法人繊維製品
衛生加工協会が定めた「抗菌防臭加工製品の加工評価試
験マニュアル」に記載されるシェークフラスコ法により
実施した。Next, the results of the antibacterial evaluation will be described. This antibacterial evaluation was performed on two samples, an example in which the effect of the charging treatment was confirmed and a comparative example 1 as a control. The evaluation test was carried out by the shake flask method described in "Process Evaluation Test for Antibacterial and Deodorized Products" established by the Textile Sanitary Processing Association.
【００２１】始めに、指標菌として黄色ぶどう状球菌(S
taphylococcus aureus：IFO 12732)或いは大腸菌(Esc
herichia Coli：IFO 3301)を所定の菌数に調製した菌
懸濁液７５(ｍｌ)をフラスコに準備する。次いで、前述
した２つのサンプルの夫々を０．７５(ｇ)に裁断した試
験片とし、この試験片を上記懸濁液中に浸漬した状態で
１時間に渡って振とうする。この後、振とう後の菌懸濁
液の生菌数を平板寒天法によって測定した。黄色ぶどう
状球菌での測定結果を表２に、大腸菌での測定結果を表
３に、夫々、示す。First, Staphylococcus aureus ( S
taphylococcus aureus : IFO 12732) or E. coli ( Esc
A bacterial suspension 75 (ml) prepared by preparing herichia Coli : IFO 3301) to a predetermined number of bacteria is prepared in a flask. Next, each of the two samples is cut into 0.75 (g) as a test piece, and the test piece is shaken for one hour while being immersed in the suspension. Thereafter, the viable cell count of the bacterial suspension after shaking was measured by a plate agar method. Table 2 shows the measurement results for Staphylococcus aureus, and Table 3 shows the measurement results for Escherichia coli.
【００２２】[0022]
【表２】 [Table 2]
【００２３】[0023]
【表３】 [Table 3]
【００２４】これら表２及び表３からも理解できるよう
に、本発明の構成を適用した実施例では、試験を行った
２種類の指標菌で優れた抗菌性を有することが確認され
た。他方、対照試験として用いた比較例１では全く抗菌
性が認められず、当該試験の有効性が確認された。As can be understood from Tables 2 and 3, in the examples to which the constitution of the present invention was applied, it was confirmed that the two types of indicator bacteria tested had excellent antibacterial properties. On the other hand, in Comparative Example 1, which was used as a control test, no antibacterial property was observed, confirming the effectiveness of the test.
【００２５】[0025]
【発明の効果】上述した説明からも明らかなように、こ
の発明の構成を適用することにより、圧力損失が低く、
しかも捕集効率に優れる帯電処理を阻害することなく、
抗菌性にも優れた抗菌性帯電フィルターを提供すること
ができる。As is clear from the above description, by applying the structure of the present invention, the pressure loss is low,
Moreover, without hindering the charging process, which has excellent collection efficiency,
It is possible to provide an antibacterial charging filter having excellent antibacterial properties.
Claims (1)
着してなり、かつ前記繊維がエレクトレット化されてな
ることを特徴とする抗菌性帯電フィルター。1. An antibacterial charging filter comprising antibacterial fine particles adhered to fibers constituting a base fabric, and the fibers are electretized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9093098A JPH11267236A (en) | 1998-03-19 | 1998-03-19 | Antimicrobial electrification filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9093098A JPH11267236A (en) | 1998-03-19 | 1998-03-19 | Antimicrobial electrification filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11267236A true JPH11267236A (en) | 1999-10-05 |
Family
ID=14012172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9093098A Pending JPH11267236A (en) | 1998-03-19 | 1998-03-19 | Antimicrobial electrification filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11267236A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200263298Y1 (en) * | 2001-10-24 | 2002-02-04 | 홍석수 | A nose pendant having filter |
| JP2005177320A (en) * | 2003-12-22 | 2005-07-07 | Nippon Acp Kk | Sanitary mask |
| JP2006520268A (en) * | 2003-03-13 | 2006-09-07 | ダグラス、ケイ．ベプレイト | Filtration device incorporating nanoparticles |
| KR100695264B1 (en) * | 2005-12-01 | 2007-03-14 | 주식회사 성창에어텍 | Antibiosis filter manufacture method and Antibiosis filter |
| WO2008041726A1 (en) | 2006-10-04 | 2008-04-10 | Uni-Charm Corporation | Filter for mask and mask formed using the same |
| WO2010096285A3 (en) * | 2009-02-20 | 2011-02-17 | 3M Innovative Properties Company | Antimicrobial electret web |
| JP2014208318A (en) * | 2013-04-16 | 2014-11-06 | 東洋紡株式会社 | Antibacterial electret filter medium |
| JPWO2013133195A1 (en) * | 2012-03-07 | 2015-07-30 | 東亞合成株式会社 | Deodorant mask |
| JP2017012214A (en) * | 2015-06-26 | 2017-01-19 | アマノ株式会社 | Platinum nanoparticle-supporting electret filter production process, platinum nano-particle-supporting electret filter, and air cleaning machine |
-
1998
- 1998-03-19 JP JP9093098A patent/JPH11267236A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200263298Y1 (en) * | 2001-10-24 | 2002-02-04 | 홍석수 | A nose pendant having filter |
| JP2006520268A (en) * | 2003-03-13 | 2006-09-07 | ダグラス、ケイ．ベプレイト | Filtration device incorporating nanoparticles |
| JP2005177320A (en) * | 2003-12-22 | 2005-07-07 | Nippon Acp Kk | Sanitary mask |
| JP4570126B2 (en) * | 2003-12-22 | 2010-10-27 | 日本エー・シー・ピー株式会社 | Sanitary mask |
| KR100695264B1 (en) * | 2005-12-01 | 2007-03-14 | 주식회사 성창에어텍 | Antibiosis filter manufacture method and Antibiosis filter |
| WO2008041726A1 (en) | 2006-10-04 | 2008-04-10 | Uni-Charm Corporation | Filter for mask and mask formed using the same |
| WO2010096285A3 (en) * | 2009-02-20 | 2011-02-17 | 3M Innovative Properties Company | Antimicrobial electret web |
| US20110290119A1 (en) * | 2009-02-20 | 2011-12-01 | 3M Innovative Properties Company | Antimicrobial electret web |
| CN102348845A (en) * | 2009-02-20 | 2012-02-08 | 3M创新有限公司 | Antimicrobial electret web |
| JPWO2013133195A1 (en) * | 2012-03-07 | 2015-07-30 | 東亞合成株式会社 | Deodorant mask |
| JP2014208318A (en) * | 2013-04-16 | 2014-11-06 | 東洋紡株式会社 | Antibacterial electret filter medium |
| JP2017012214A (en) * | 2015-06-26 | 2017-01-19 | アマノ株式会社 | Platinum nanoparticle-supporting electret filter production process, platinum nano-particle-supporting electret filter, and air cleaning machine |
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