JP3157040B2 - Deodorizing filter and manufacturing method thereof - Google Patents
Deodorizing filter and manufacturing method thereofInfo
- Publication number
- JP3157040B2 JP3157040B2 JP14701892A JP14701892A JP3157040B2 JP 3157040 B2 JP3157040 B2 JP 3157040B2 JP 14701892 A JP14701892 A JP 14701892A JP 14701892 A JP14701892 A JP 14701892A JP 3157040 B2 JP3157040 B2 JP 3157040B2
- Authority
- JP
- Japan
- Prior art keywords
- fibrous
- weight
- activated carbon
- thermoplastic synthetic
- deodorizing
- 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.)
- Expired - Fee Related
Links
Description
【０００１】[0001]
【産業上の利用分野】この発明は、繊維状脱臭剤に熱可
塑性合成繊維を融着させてなる脱臭フィルタに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deodorizing filter obtained by fusing thermoplastic synthetic fibers to a fibrous deodorizing agent.
【０００２】[0002]
【従来の技術】従来、防じんマスクや工業用フィルタに
おいて除じん機能を有する濾材と、アンモニア・硫化水
素・メルカプタン等の悪臭ガスに対する脱臭剤とを組み
合わせた脱臭フィルタが知られている。脱臭剤は、粉末
状・粒子状・繊維状等の活性炭を通気性容器に充填した
り、接着剤を介して不織布等の繊維表面に固着したり、
２枚の不織布で挟持したりして利用する手段が周知であ
る。また、この他に鉄（ＩＩ）イオン、マンガン（Ｉ
Ｉ）イオン等の金属イオンが悪臭ガスに対するすぐれた
脱臭効果を有することが知られており、例えば、特開平
１−２９０６８５号公報にはマンガン（ＩＩ）イオンに
対しアスコルビン酸・オキシ多塩基酸等を結合させた組
成物を活性炭に担持させる技術、特開平３−２１３１０
７号公報にはＦｅ，Ｍｎ，Ｃｒ等の金属とオキシ多塩基
酸との反応生成物を２枚の不織布で挟持する技術が開示
されている。2. Description of the Related Art Hitherto, there has been known a deodorizing filter in which a filter medium having a dust removing function in a dust mask or an industrial filter is combined with a deodorizing agent for a malodorous gas such as ammonia, hydrogen sulfide, mercaptan or the like. The deodorant is used to fill powdered, particulate, or fibrous activated carbon into a gas-permeable container, or adhere to the surface of fibers such as nonwoven fabric via an adhesive,
Means of sandwiching and using two nonwoven fabrics are well known. In addition, iron (II) ion, manganese (I
It is known that metal ions such as I) ions have an excellent deodorizing effect on odorous gas. For example, Japanese Patent Application Laid-Open No. 1-290685 discloses that manganese (II) ions can be treated with ascorbic acid, oxypolybasic acid and the like. For supporting a composition bound with activated carbon on activated carbon, JP-A-3-21310
No. 7 discloses a technique in which a reaction product of a metal such as Fe, Mn, and Cr and an oxypolybasic acid is sandwiched between two nonwoven fabrics.
【０００３】[0003]
【発明が解決しようとする課題】防じん用濾材と組み合
わせる脱臭剤に活性炭を使用する場合には、悪臭ガスに
対する活性炭の飽和吸着量と単位時間当りの吸着量とが
実用上必ずしも高くないから、脱臭が不十分になりがち
であるとか、それを避けるために多量の活性炭を必要と
するという問題がある。脱臭フィルタを使い捨ての防じ
んマスクに使用する場合、この問題は特に深刻である。When activated carbon is used as a deodorizing agent to be combined with a dust-preventing filter medium, since the saturated adsorption amount of activated carbon to malodorous gas and the adsorption amount per unit time are not necessarily high in practice, deodorization is not possible. However, there is a problem that the amount of activated carbon tends to be insufficient, and a large amount of activated carbon is required to avoid it. This problem is particularly acute when a deodorizing filter is used for a disposable dust mask.
【０００４】また、粉状・粒状の活性炭を通気性の容器
に収納して使用する方法は容器が嵩張りがちであるうえ
に、容器の中で活性炭が動いて一箇所に偏在し、通気に
対し活性炭を一様な厚みに維持することが難しいという
問題がある。この種活性炭を接着剤を介して不織布等に
固着して使用する方法は、脱臭剤を薄いシート状にでき
るから、用途によっては使い勝手がよくなる反面、活性
炭が接着剤で被覆され脱臭能力が低下したり、活性炭が
不織布等から脱落し易いという問題がある。[0004] In addition, powdered or granular activated carbon is stored in a gas permeable container and used. In addition, the container tends to be bulky, and the activated carbon moves in the container and is unevenly distributed in one place. On the other hand, there is a problem that it is difficult to maintain the activated carbon at a uniform thickness. This type of method in which activated carbon is fixed to a non-woven fabric or the like via an adhesive allows the deodorant to be formed into a thin sheet, so that depending on the application, the usability is improved, but the activated carbon is coated with the adhesive and the deodorizing ability is reduced. In addition, there is a problem that the activated carbon easily falls off the nonwoven fabric or the like.
【０００５】繊維状活性炭は、商品名「活性炭素繊維Ｋ
Ｆ」（東洋紡（株）製）等として一般に知られているも
ので、繊維状の濾材と組み合わせて使用するのに都合が
よい形状をしている。しかし、繊維状活性炭は一般に脆
く、これを併用したシート状の濾材は型崩れを起こし易
いから、そのままでは防じんマスクのフィルタに使用し
難いという問題がある。[0005] Fibrous activated carbon is available under the trade name "Activated Carbon Fiber K".
F "(manufactured by Toyobo Co., Ltd.) or the like, and has a shape convenient for use in combination with a fibrous filter medium. However, fibrous activated carbon is generally brittle, and a sheet-like filter medium using the same is liable to lose its shape. Therefore, there is a problem that it is difficult to use it as a filter for a dust mask as it is.
【０００６】前記特開平１−２９０６８５号、特開平３
−２１３１０７号公報に開示された鉄（ＩＩ）イオン等
を脱臭剤に利用する技術では活性炭にまさる脱臭効果を
期待できるが、使い捨て防じんマスクに応用可能なよう
にこの種脱臭剤をシート状形態に加工する技術は知られ
ていない。The above-mentioned Japanese Patent Application Laid-Open No. 1-290685 and Japanese Patent Application Laid-Open
In the technology using iron (II) ions or the like as a deodorant disclosed in Japanese Patent No. 213107, a deodorizing effect superior to activated carbon can be expected, but this kind of deodorant is formed into a sheet form so as to be applicable to a disposable dust mask. The processing technology is not known.
【０００７】そこで、この発明は繊維状活性炭に第一鉄
塩とトコフェロール類とを添着して繊維状脱臭剤とし、
すぐれた脱臭能力と寿命とを得るとともに、この脱臭剤
に熱可塑性合成繊維を融着させてフィルタとすることに
より、前記従来の問題を解決することを課題にしてい
る。Accordingly, the present invention provides a fibrous deodorant by impregnating a ferrous activated carbon with a ferrous salt and tocopherols,
It is an object of the present invention to solve the above-mentioned conventional problems by obtaining excellent deodorizing ability and service life, and by forming a filter by fusing thermoplastic synthetic fibers to the deodorizing agent.
【０００８】[0008]
【課題を解決するための手段】この発明が前記課題を解
決するために要旨とするところは、繊維状活性炭に、そ
の重量に対し第一鉄塩を鉄の量で３〜２０重量％および
トコフェロール類を１０〜３０重量％添着してなる繊維
状脱臭剤１０〜５０重量％と、平均繊径０．１〜１５μ
ｍを有し繊径分布範囲０．０１〜１００μｍの熱可塑性
合成繊維９０〜５０重量％との混合物であって、この熱
可塑性合成繊維を繊維状脱臭剤に融着させて、脱臭フィ
ルタを構成することにある。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the gist of the present invention is to provide a fibrous activated carbon with a ferrous salt in an amount of 3 to 20% by weight of iron based on the weight thereof and tocopherol. 10 to 30% by weight of a fibrous deodorant with 10 to 30% by weight, and an average fiber diameter of 0.1 to 15 μm.
m, and a mixture of 90 to 50% by weight of thermoplastic synthetic fibers having a fiber diameter distribution range of 0.01 to 100 μm. The thermoplastic synthetic fibers are fused to a fibrous deodorant to constitute a deodorizing filter. Is to do.
【０００９】この発明の好ましい実施態様においては、
熱可塑性合成繊維としてメルトブロー繊維を使用する。In a preferred embodiment of the present invention,
Melt blown fibers are used as thermoplastic synthetic fibers.
【００１０】また、脱臭フィルタの製造方法にあって
は、繊維状脱臭剤と熱可塑性合成繊維を気流中で混合し
た後、得られた混合物における熱可塑性合成繊維に溶融
処理を施して繊維状脱臭剤に融着させることが特徴であ
る。In the method for producing a deodorizing filter, a fibrous deodorizing agent and a thermoplastic synthetic fiber are mixed in an air stream, and then the thermoplastic synthetic fiber in the obtained mixture is subjected to a melting treatment to obtain a fibrous deodorizing filter. It is characterized by being fused to the agent.
【００１１】[0011]
【作用】かかる脱臭フィルタでは、繊維状活性炭に吸着
された悪臭ガスを第一鉄塩の鉄（ＩＩ）イオンで分解し
て脱臭し、鉄（ＩＩ）イオンは鉄（ＩＩＩ）イオンとな
った後にトコフェロール類により還元されて鉄（ＩＩ）
イオンとなり、再び悪臭ガスを分解する。このような鉄
（ＩＩ）イオンの脱臭機能は活性炭よりはるかに強力で
あるから、この脱臭フィルタは、脱臭機能にすぐれ、か
つその寿命が長い。In such a deodorizing filter, the offensive odor gas adsorbed on the fibrous activated carbon is decomposed and deodorized by the iron (II) ions of the ferrous salt, and the iron (II) ions are converted into iron (III) ions. Iron (II) reduced by tocopherols
It becomes ions and decomposes the odorous gas again. Since the deodorizing function of such iron (II) ions is much stronger than activated carbon, this deodorizing filter has excellent deodorizing function and has a long life.
【００１２】熱可塑性合成繊維に極細繊維、殊にメルト
ブロー繊維を使うと、高い粉じん捕集効率と低い通気抵
抗とを維持することが可能な除じん用濾材を得ることが
できる。When ultrafine fibers, particularly meltblown fibers, are used as the thermoplastic synthetic fibers, it is possible to obtain a filter medium for dust removal capable of maintaining high dust collection efficiency and low airflow resistance.
【００１３】この熱可塑性合成繊維と繊維状脱臭剤とを
混合し、繊維を互いに絡み合わせるとともに、熱可塑性
合成繊維を繊維状脱臭剤に融着させることで、型崩れや
脱臭剤の脱落が少なく、すぐれた脱臭機能を有するシー
ト状の脱臭フィルタを得ることができる。The thermoplastic synthetic fiber and the fibrous deodorizing agent are mixed, the fibers are entangled with each other, and the thermoplastic synthetic fiber is fused to the fibrous deodorizing agent. Thus, a sheet-like deodorizing filter having an excellent deodorizing function can be obtained.
【００１４】比較的比重の小さい熱可塑性合成繊維と繊
維状脱臭剤とは、気流中で混合することにより脆い繊維
状脱臭剤に著しい損傷を与えることなく一様に混合する
ことができる。The thermoplastic synthetic fiber having a relatively small specific gravity and the fibrous deodorant can be uniformly mixed without significantly damaging the brittle fibrous deodorant by mixing them in an air stream.
【００１５】[0015]
【実施例】この発明に係る脱臭フィルタの詳細を実施例
に基づいて説明すると、以下のとおりである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the deodorizing filter according to the present invention will be described below with reference to embodiments.
【００１６】繊径１０〜１５μｍの繊維状活性炭を、α
−・β−・γ−トコフェロールのいずれか、またはそれ
らの混合物の３％エタノール溶液に浸漬したのち乾燥
し、活性炭重量比で２５％のトコフェロールを添着した
繊維状活性炭を得た。さらに、この活性炭を硫酸第一鉄
の２％水溶液に浸漬したのち乾燥し、活性炭重量比で１
５％の鉄（ＩＩ）イオンを添着してなる繊維状脱臭剤を
得た。A fibrous activated carbon having a fiber diameter of 10 to 15 μm is converted to α
Any one of -.beta..gamma.-tocopherol or a mixture thereof was immersed in a 3% ethanol solution and then dried to obtain fibrous activated carbon impregnated with 25% by weight of activated carbon tocopherol. Further, the activated carbon was immersed in a 2% aqueous solution of ferrous sulfate, dried, and activated carbon weight ratio was 1%.
A fibrous deodorant obtained by impregnating 5% of iron (II) ions was obtained.
【００１７】一方、垂直ダクトの上端にこの繊維状脱臭
剤を投入するホッパーを有し、下端側には水平方向に走
行するメッシュ無端ベルトを備えるとともに、ダクト中
間には繊維放出側がそのダクト内側に臨み、繊維供給側
がダクト外側に臨む針刃ロールを有する繊維混合装置を
用意した。この針刃ロールの供給側には、平均繊径０．
１〜１５μｍを有し、繊径分布範囲が０．０１〜１００
μｍのポリプロピレンのメルトブロー繊維を供給し、こ
の繊維を針刃でほぐしながらダクト内へ投入する。この
繊維が９０〜５０重量％となるように、ホッパーからは
繊維状脱臭剤を１０〜５０重量％の割合で投入する。メ
ッシュベルトの裏側にはバキューム装置を設けてその吸
気流がダクトを通って流れるようにしてあり、その空気
流を利用してメルトブロー繊維と繊維状脱臭剤とを混合
し、メッシュベルト上に堆積させてウエブとする。この
ウエブを直径０．５〜５ｍｍのホーンを適宜のピッチで
配列した超音波溶接機にかけ、メルトブロー繊維を間欠
的に溶融し、繊維状脱臭剤に融着させてシート状の脱臭
フィルタを得た。On the other hand, the upper end of the vertical duct is provided with a hopper for charging the fibrous deodorant, and the lower end is provided with a mesh endless belt running in a horizontal direction. A fiber mixing device having a needle blade roll whose fiber supply side faces the outside of the duct was prepared. On the supply side of this needle blade roll, an average fiber diameter of 0.
1 to 15 μm, and the fiber diameter distribution range is 0.01 to 100
The melt blown fiber of μm polypropylene is supplied, and the fiber is introduced into the duct while being loosened with a needle blade. A fibrous deodorant is fed from the hopper at a rate of 10 to 50% by weight so that the fibers become 90 to 50% by weight. A vacuum device is provided on the back side of the mesh belt to allow the intake air flow to flow through the duct, and the melt blown fiber and the fibrous deodorant are mixed using the air flow and deposited on the mesh belt. Web. The web was applied to an ultrasonic welding machine in which horns having a diameter of 0.5 to 5 mm were arranged at an appropriate pitch, and the melt blown fibers were intermittently melted and fused with a fibrous deodorant to obtain a sheet-like deodorizing filter. .
【００１８】この脱臭フィルタの性能評価の結果は以下
のとおりである。 （１）悪臭ガス試験 ポリプロピレンのメルトブロー繊維９０重量％、繊維状
脱臭剤１０重量％、坪量２００ｇ／ｍ2の脱臭フィルタ
１ｇの小片を試験片として用意し、一方、試験ガスとし
てアンモニア約１００ｐｐｍ、硫化水素約５０ｐｐｍ、
メルカプタン約５ｐｐｍをそれぞれ別の１０リットル容
器に封入した。封入直後の初期濃度（Ｃｏ）を測定して
から、試験片を容器に投入し、一定時間毎にガス濃度
（Ｃ）を測定して次式により濃度減衰率を求めた。濃度
検知器として、アンモニアには検知管、硫化水素とメル
カプタンとには臭いセンサーを使用し、求めた結果を図
１、図３および図４に示した。The results of the performance evaluation of this deodorizing filter are as follows. (1) Odor gas test 90% by weight of melt blown fiber of polypropylene, 10% by weight of a fibrous deodorizer, and a small piece of 1 g of a deodorizing filter having a basis weight of 200 g / m 2 were prepared as test pieces, while about 100 ppm of ammonia was used as a test gas. About 50 ppm of hydrogen sulfide,
About 5 ppm of mercaptan was sealed in separate 10 liter containers. After measuring the initial concentration (Co) immediately after sealing, the test piece was put into a container, and the gas concentration (C) was measured at regular intervals, and the concentration decay rate was determined by the following equation. As a concentration detector, a detection tube was used for ammonia, and an odor sensor was used for hydrogen sulfide and mercaptan. The results obtained are shown in FIGS. 1, 3 and 4.
【００１９】減衰率＝（Ｃ＋ＣB）／Ｃｏ ただし、ＣBはガス濃度各測定時における容器のガス吸
着量なお、アンモニアについては繊維状活性炭だけの場
合のガス濃度変化を比較のために測定し、結果を図１に
併記し、また、同一試験片を繰り返し使用したときの結
果を図２に示した。 （２）粉じん試験 ポリプロピレンのメルトブロー繊維９０重量％、繊維状
脱臭剤１０重量％、坪量１５０ｇ／ｍ2からなる有効径
８０ｍｍの脱臭フィルタに対し、平均粒径０．３μｍの
シリカ粉じん３０ｍｇ／ｍ3からなる粉じん混合空気を
線速１０ｃｍ／分で通気して、粉じん堆積量に対する粉
じん捕集効率および通気抵抗の関係を求め、その結果を
図５に示した。Attenuation rate = (C + C B ) / Co where C B is the amount of gas adsorbed in the vessel at each gas concentration measurement. For ammonia, the change in gas concentration when only fibrous activated carbon is used is measured for comparison. The results are shown in FIG. 1, and the results obtained when the same test piece was used repeatedly are shown in FIG. (2) Dust test For a deodorizing filter having an effective diameter of 80 mm composed of 90% by weight of melt-blown polypropylene fiber, 10% by weight of a fibrous deodorant, and a basis weight of 150 g / m 2, 30 mg / m of silica dust having an average particle diameter of 0.3 μm. Dust mixed air composed of No. 3 was ventilated at a linear velocity of 10 cm / min to determine the relationship between the dust collection efficiency and the dust resistance with respect to the dust accumulation amount, and the results are shown in FIG.
【００２０】図１から明らかなように、この脱臭フィル
タは、繊維状活性炭と比べアンモニアガス濃度の減衰率
が大きく、すぐれた脱臭機能を有することがわかる。As is clear from FIG. 1, this deodorizing filter has a larger attenuation rate of the ammonia gas concentration than the fibrous activated carbon and has an excellent deodorizing function.
【００２１】図２から明らかなように、脱臭フィルタは
繰り返し使用しても減衰速度と減衰率とに大きな変化が
なく、寿命の長い脱臭機能を有していることがわかる。
繊維状活性炭は繰り返し３回目で脱臭能力を失ってい
る。As is apparent from FIG. 2, the deodorizing filter has no significant change in the decay rate and the decay rate even when used repeatedly, and has a long-life deodorizing function.
The fibrous activated carbon loses its deodorizing ability in the third cycle.
【００２２】図３および図４から明らかなように、脱臭
フィルタは硫化水素およびメルカプタンの脱臭について
も有効である。As apparent from FIGS. 3 and 4, the deodorizing filter is also effective for deodorizing hydrogen sulfide and mercaptan.
【００２３】図５から明らかなように、脱臭フィルタは
粉じん堆積量の増加にもかかわらず、高い粉じん捕集効
率と低い通気抵抗とを維持しており、高性能な除じん機
能を有していることがわかる。As is apparent from FIG. 5, the deodorizing filter maintains high dust collecting efficiency and low airflow resistance despite the increase in the amount of accumulated dust, and has a high-performance dust removing function. You can see that there is.
【００２４】なお、得られた脱臭フィルタは熱可塑性合
成繊維と繊維状脱臭剤とが一様に混合され、絡み合い、
かつ、よく融着しており、脱臭剤は容易に脱落すること
がなかった。In the obtained deodorizing filter, the thermoplastic synthetic fiber and the fibrous deodorizing agent are uniformly mixed and entangled.
Further, it was well fused, and the deodorant did not fall off easily.
【００２５】[0025]
【発明の効果】この発明に係る脱臭フィルタは、活性炭
で吸着した悪臭ガスを第一鉄塩として添着した鉄（Ｉ
Ｉ）イオンで分解して脱臭し、その後の鉄（ＩＩＩ）イ
オンはトコフェロールで還元して鉄（ＩＩ）イオンとす
ることができるから、脱臭力が強く、しかも、脱臭剤と
しての寿命が長い。According to the deodorizing filter of the present invention, iron (I) containing a malodorous gas adsorbed by activated carbon as a ferrous salt is attached.
I) It decomposes with ions and deodorizes, and the subsequent iron (III) ion can be reduced with tocopherol to iron (II) ions, so that it has a strong deodorizing power and a long life as a deodorant.
【００２６】繊径の小さい熱可塑性合成繊維が間欠的に
融着して繊維状脱臭剤の繊維形状を保持しているから、
この繊維の活性炭としての吸着表面積を犠牲にすること
が少なく、活性炭が容易に脱落することのないシート状
の脱臭フィルタを得ることができる。Since the thermoplastic synthetic fibers having a small fiber diameter are intermittently fused to maintain the fiber shape of the fibrous deodorant,
It is possible to obtain a sheet-like deodorizing filter in which the adsorption surface area of the fibers as activated carbon is hardly sacrificed and the activated carbon does not easily fall off.
【００２７】熱可塑性合成繊維にメルトブロー繊維を使
用した脱臭フィルタは、微細粉じんに対する除じん機能
が優れている。The deodorizing filter using the meltblown fiber for the thermoplastic synthetic fiber has an excellent dust removing function for fine dust.
【００２８】空気流中で熱可塑性合成繊維と繊維状脱臭
剤とを混合することによって、比重の小さい両材料を一
様に混合することができ、しかも繊維状脱臭剤に損傷を
与えることが少ない。By mixing the thermoplastic synthetic fiber and the fibrous deodorant in an air stream, both materials having a low specific gravity can be uniformly mixed, and the fibrous deodorant is hardly damaged. .
【図１】脱臭フィルタによるアンモニアガス濃度の減衰
率曲線。FIG. 1 is an attenuation rate curve of ammonia gas concentration by a deodorizing filter.
【図２】脱臭フィルタを繰り返し使用したときの図１と
同様の減衰率曲線を（ａ）、（ｂ）、（ｃ）によって示
す。FIGS. 2 (a), 2 (b) and 2 (c) show attenuation factor curves similar to FIG. 1 when a deodorizing filter is repeatedly used.
【図３】脱臭フィルタによる硫化水素濃度の減衰率曲
線。FIG. 3 is an attenuation curve of the concentration of hydrogen sulfide by a deodorizing filter.
【図４】脱臭フィルタによるメルカプタン濃度の減衰率
曲線。FIG. 4 is a decay rate curve of mercaptan concentration by a deodorizing filter.
【図５】脱臭フィルタの集じん特性曲線。FIG. 5 is a dust collection characteristic curve of a deodorizing filter.
フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｂ０１Ｊ 20/22 (72)発明者 今井 裕 東京都千代田区四番町７番地 興研株式 会社内 (56)参考文献 特開 昭64−38139（ＪＰ，Ａ) 特開 昭59−132937（ＪＰ，Ａ) 特開 昭49−128868（ＪＰ，Ａ) 特開 平３−288545（ＪＰ，Ａ) 特開 平２−135141（ＪＰ，Ａ) 特開 昭63−283749（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B01J 20/00 - 20/34 B01D 39/00 - 39/20 Continuation of the front page (51) Int.Cl. 7 Identification symbol FI B01J 20/22 (72) Inventor Hiroshi Imai 7 Koban, Chiyoda-ku, Tokyo Koken Co., Ltd. (56) References JP-A-64-38139 (JP, A) JP-A-59-132937 (JP, A) JP-A-49-128868 (JP, A) JP-A-3-288545 (JP, A) JP-A-2-135141 (JP, A) 63-283749 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) B01J 20/00-20/34 B01D 39/00-39/20
Claims (3)
を鉄の量で３〜２０重量％、およびトコフェロール類を
１０〜３０重量％添着してなる繊維状脱臭剤１０〜５０
重量％と、平均繊径０．１〜１５μｍを有し、繊径分布
範囲０．０１〜１００μｍの熱可塑性合成繊維９０〜５
０重量％との混合物であって、前記熱可塑性合成繊維が
前記繊維状脱臭剤に融着していることを特徴とする脱臭
フィルタ。1. A fibrous deodorizer comprising fibrous activated carbon impregnated with a ferrous salt in an amount of 3 to 20% by weight of iron and tocopherols in an amount of 10 to 30% by weight, based on the weight thereof.
Thermoplastic synthetic fibers 90 to 5 having a weight percent of 0.1 to 15 μm in average fiber diameter and a fiber diameter distribution range of 0.01 to 100 μm.
0% by weight, wherein the thermoplastic synthetic fibers are fused to the fibrous deodorizing agent.
である請求項１記載の脱臭フィルタ。2. The deodorizing filter according to claim 1, wherein the thermoplastic synthetic fiber is a melt blown fiber.
を鉄の量で３〜２０重量％、およびトコフェロール類を
１０〜３０重量％添着してなる繊維状脱臭剤１０〜５０
重量％と、平均繊径０．１〜１５μｍを有し、繊径分布
範囲０．０１〜１００μｍの熱可塑性合成繊維９０〜５
０重量％とを気流中で混合し、得られた混合物における
前記熱可塑性合成繊維に対して溶融処理を施し、該熱可
塑性合成繊維を前記繊維状脱臭剤に融着することを特徴
とする脱臭フィルタの製造方法。3. A fibrous deodorant obtained by impregnating fibrous activated carbon with a ferrous salt in an amount of 3 to 20% by weight of iron and a tocopherol in an amount of 10 to 30% by weight, based on the weight of the fibrous activated carbon.
Thermoplastic synthetic fibers 90 to 5 having a weight percent of 0.1 to 15 μm in average fiber diameter and a fiber diameter distribution range of 0.01 to 100 μm.
0% by weight in an air stream, subjecting the thermoplastic synthetic fiber in the resulting mixture to a melting treatment, and fusing the thermoplastic synthetic fiber to the fibrous deodorant. Manufacturing method of filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14701892A JP3157040B2 (en) | 1992-04-20 | 1992-04-20 | Deodorizing filter and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14701892A JP3157040B2 (en) | 1992-04-20 | 1992-04-20 | Deodorizing filter and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05293370A JPH05293370A (en) | 1993-11-09 |
| JP3157040B2 true JP3157040B2 (en) | 2001-04-16 |
Family
ID=15420688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14701892A Expired - Fee Related JP3157040B2 (en) | 1992-04-20 | 1992-04-20 | Deodorizing filter and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3157040B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104437422A (en) * | 2014-10-21 | 2015-03-25 | 繁昌县倍思生产力促进中心有限公司 | Adsorbent for formaldehyde-scavenging haze-preventing gauze mask and preparation method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5670255A (en) * | 1995-01-23 | 1997-09-23 | Ppg Industries, Inc. | Antioxidant compositions for coating substrates, substrates coated with the same and methods for inhibiting the oxidation of such compositions applied to a substrate |
| CN113546608A (en) * | 2021-08-05 | 2021-10-26 | 安徽启威生物科技有限公司 | Deodorant based on modified activated carbon fiber and modified silicon dioxide and preparation method thereof |
-
1992
- 1992-04-20 JP JP14701892A patent/JP3157040B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104437422A (en) * | 2014-10-21 | 2015-03-25 | 繁昌县倍思生产力促进中心有限公司 | Adsorbent for formaldehyde-scavenging haze-preventing gauze mask and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05293370A (en) | 1993-11-09 |
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