JP2002095913A - Deodorizing filter - Google Patents
Deodorizing filterInfo
- Publication number
- JP2002095913A JP2002095913A JP2000288178A JP2000288178A JP2002095913A JP 2002095913 A JP2002095913 A JP 2002095913A JP 2000288178 A JP2000288178 A JP 2000288178A JP 2000288178 A JP2000288178 A JP 2000288178A JP 2002095913 A JP2002095913 A JP 2002095913A
- Authority
- JP
- Japan
- Prior art keywords
- nonwoven fabric
- adsorbent
- deodorizing filter
- catalyst
- activated carbon
- 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
- 230000001877 deodorizing effect Effects 0.000 title claims abstract description 70
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 115
- 239000003054 catalyst Substances 0.000 claims abstract description 62
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000007864 aqueous solution Substances 0.000 claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims abstract description 10
- 239000011230 binding agent Substances 0.000 claims abstract description 9
- 239000000428 dust Substances 0.000 claims abstract description 8
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 112
- 239000003463 adsorbent Substances 0.000 claims description 79
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 3
- 229910044991 metal oxide Inorganic materials 0.000 claims description 3
- 229910001510 metal chloride Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 18
- 230000003197 catalytic effect Effects 0.000 abstract description 12
- 239000000126 substance Substances 0.000 abstract description 9
- 231100000572 poisoning Toxicity 0.000 abstract description 8
- 230000000607 poisoning effect Effects 0.000 abstract description 8
- YBCAZPLXEGKKFM-UHFFFAOYSA-K ruthenium(iii) chloride Chemical compound [Cl-].[Cl-].[Cl-].[Ru+3] YBCAZPLXEGKKFM-UHFFFAOYSA-K 0.000 abstract description 7
- 239000000243 solution Substances 0.000 abstract description 7
- 229910052707 ruthenium Inorganic materials 0.000 abstract description 6
- 230000006866 deterioration Effects 0.000 abstract description 4
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 abstract description 3
- 230000001172 regenerating effect Effects 0.000 abstract description 2
- 229910001925 ruthenium oxide Inorganic materials 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 23
- 238000001179 sorption measurement Methods 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000000835 fiber Substances 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 230000002378 acidificating effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000001771 impaired effect Effects 0.000 description 4
- 239000011949 solid catalyst Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000002781 deodorant agent Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 150000001805 chlorine compounds Chemical class 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 230000033116 oxidation-reduction process Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000006479 redox reaction Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 102100024522 Bladder cancer-associated protein Human genes 0.000 description 1
- 101150110835 Blcap gene Proteins 0.000 description 1
- 102100032566 Carbonic anhydrase-related protein 10 Human genes 0.000 description 1
- 101000867836 Homo sapiens Carbonic anhydrase-related protein 10 Proteins 0.000 description 1
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 101100493740 Oryza sativa subsp. japonica BC10 gene Proteins 0.000 description 1
- 101100219325 Phaseolus vulgaris BA13 gene Proteins 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 230000002468 redox effect Effects 0.000 description 1
- BIXNGBXQRRXPLM-UHFFFAOYSA-K ruthenium(3+);trichloride;hydrate Chemical compound O.Cl[Ru](Cl)Cl BIXNGBXQRRXPLM-UHFFFAOYSA-K 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、例えば空調装置な
ど用いられる脱臭フィルターに係わり、特に活性炭など
の吸着材に吸着した臭気物のガス成分を常温において活
性を有する常温触媒を用いて酸化還元反応によって固定
化、分解し、吸着材の吸着性能を再生し、フィルターの
寿命を長期に亘って保持することができる脱臭フィルタ
ーに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deodorizing filter for use in, for example, an air conditioner, and more particularly to an oxidation-reduction reaction of a gas component of odor adsorbed on an adsorbent such as activated carbon using a room temperature catalyst having activity at room temperature. The present invention relates to a deodorizing filter which can be fixed and decomposed, regenerate the adsorption performance of an adsorbent, and maintain the life of the filter for a long time.
【０００２】[0002]
【発明が解決しようとする課題】たばこの煙や排気ガス
に含まれる臭気物のガス成分を活性炭などの吸着材単独
で吸着脱臭する場合、吸着材は吸着容量に限度があるた
め脱臭寿命が短い。そこで、ガス成分に対して長期にわ
たって脱臭効果を発揮させるために、酸化還元作用を有
する触媒を脱臭材補完物として用い、吸着した臭気成分
を分解することによって吸着材を再生しながら使用する
場合が多い。例えば、特開平９−２６２２７３号公報や
特開平７−１５５３６６号公報には、活性炭などの吸着
材に直接金属触媒成分を添着、担持させ、その触媒作用
により脱臭性能を長期にわたって維持させるようにした
脱臭材が提案されている。なお、上記公報に開示されて
いる触媒は、常温触媒とされ、常温で触媒活性を有し化
学反応する金属や金属酸化物を含む触媒の総称であっ
て、特定のガス成分に対し酸化力や還元力を有する。ま
た、上記公報には、脱臭材の使用形態として、ハニカム
状に成形することや、ハニカムコアの内壁に固着させる
ことなどが開示されている。When a gas component of odor contained in cigarette smoke or exhaust gas is adsorbed and deodorized by an adsorbent such as activated carbon alone, the adsorbent has a limited adsorption capacity and therefore has a short deodorizing life. . Therefore, in order to exert a long-term deodorizing effect on gas components, a catalyst having a redox effect is used as a deodorant supplement, and the adsorbent is used while regenerating the adsorbent by decomposing the adsorbed odor components. Many. For example, in JP-A-9-262273 and JP-A-7-155366, a metal catalyst component is directly attached to and supported on an adsorbent such as activated carbon, and the deodorizing performance is maintained for a long time by the catalytic action. Deodorants have been proposed. The catalyst disclosed in the above publication is a room temperature catalyst, and is a general term for a catalyst containing a metal or metal oxide that has a catalytic activity at room temperature and chemically reacts, and has an oxidizing power and a specific gas component. Has reducing power. Further, the above-mentioned publication discloses, as a usage form of the deodorizing material, molding into a honeycomb shape, fixing to the inner wall of a honeycomb core, and the like.
【０００３】しかしながら、このような活性炭等の吸着
材に直接、触媒を添着、担持させた従来の脱臭材におい
ては、吸着材外表面の吸着能の大部分を触媒粒子によっ
て塞いでしまう場合があり、このような場合には吸着材
の初期性能が低下して、所望の脱臭性能が得られなくな
るという問題がある。また、触媒作用を向上させるため
に触媒の担持量を増加させると、吸着材の初期性能がさ
らに悪化し、ベースとなる吸着材の初期性能を確保する
ために逆に触媒担持量を減少させると、触媒作用が十分
に発揮されなくなるという問題もある。However, in a conventional deodorant in which a catalyst is directly attached to and supported on such an adsorbent such as activated carbon, most of the adsorbing ability on the outer surface of the adsorbent may be blocked by catalyst particles. However, in such a case, there is a problem that the initial performance of the adsorbent is reduced and a desired deodorizing performance cannot be obtained. In addition, when the amount of supported catalyst is increased to improve the catalytic action, the initial performance of the adsorbent is further deteriorated, and conversely, the amount of supported catalyst is reduced to secure the initial performance of the base adsorbent. Also, there is a problem that the catalytic action cannot be sufficiently exhibited.
【０００４】さらに、触媒を吸着材に添着、担持させた
場合、触媒と吸着材とが一体化しているために吸着ガス
が触媒の被毒物質である場合には、触媒性能が劣化しや
すくなるという問題、例えばルテニウム塩化物の場合、
特にアンモニアなどの塩基性物質と反応して触媒性能が
劣化するという問題があり、これらの問題点の解消が触
媒を吸着材に担持させた従来の脱臭材における課題とな
っていた。Further, when a catalyst is attached to and carried on an adsorbent, the catalyst performance is liable to deteriorate when the adsorbed gas is a poisoning substance of the catalyst because the catalyst and the adsorbent are integrated. Problem, for example, in the case of ruthenium chloride,
In particular, there is a problem that the catalyst performance deteriorates due to reaction with a basic substance such as ammonia, and solving these problems has been a problem in a conventional deodorizing material in which a catalyst is supported on an adsorbent.
【０００５】[0005]
【発明の目的】本発明は、従来の脱臭材における上記課
題に着目してなされたものであって、吸着材の初期性能
を低下させることなく、十分な触媒作用を発揮させるこ
とができ、吸着材の吸着性能を再生して脱臭フィルター
としての寿命を長期にわたって保持することが可能で、
しかも触媒成分の被毒物質が存在したとしても、触媒性
能の劣化が少ない脱臭フィルターを提供することを目的
としている。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems in the conventional deodorizing material, and can exert a sufficient catalytic action without lowering the initial performance of the adsorbent. It is possible to regenerate the adsorption performance of the material and maintain the life as a deodorizing filter for a long time,
In addition, it is an object of the present invention to provide a deodorizing filter that does not deteriorate the catalytic performance even when a poisoning substance of the catalyst component exists.
【０００６】[0006]
【課題を解決するための手段】本発明者は、上記問題点
を解決するために、鋭意検討を進めてきたところ、従
来、酸化還元作用を得るために活性炭等の吸着材に添
着、担持させていた常温触媒は、直接添着、担持させる
ことなく、吸着材に近接、接触させることによって、触
媒性能を発揮させることができることを見出すに到っ
た。また、常温触媒を設置する部位を特定することによ
って、被毒物質による触媒性能の劣化を防止できること
を確認するに到った。Means for Solving the Problems The inventor of the present invention has made intensive studies in order to solve the above-mentioned problem. It has now been found that the ordinary-temperature catalyst, which has been used, can exert its catalytic performance by being brought into close contact with the adsorbent without being directly attached and supported. In addition, it has been confirmed that by specifying the portion where the room-temperature catalyst is installed, it is possible to prevent deterioration of the catalyst performance due to the poisoning substance.
【０００７】本発明は、このような知見に基づくもので
あって、本発明の請求項１に係わる脱臭フィルターは、
バインダーにより保持された吸着材を含む第１不織布
と、空気の流れ方向に対して第１不織布の上流側および
下流側にそれぞれ除塵用に配設された第２および第３不
織布との３層の不織布からなる脱臭フィルターであっ
て、これら３層の不織布のうち第１不織布および下流側
に位置する第３不織布の少なくとも一方に、ルテニウム
金属、ルテニウム金属の酸化物および塩化物から選ばれ
る少なくとも１種の触媒を含有する水溶液もしくはコー
ティング剤が塗布あるいは含浸されている構成としたこ
とを特徴としており、脱臭フィルターにおけるこのよう
な構成を前述した従来の課題を解決するための手段とし
ている。[0007] The present invention is based on such findings, and the deodorizing filter according to claim 1 of the present invention comprises:
Three layers of a first nonwoven fabric including an adsorbent held by a binder, and second and third nonwoven fabrics disposed for dust removal on the upstream and downstream sides of the first nonwoven fabric with respect to the flow direction of air, respectively. A deodorizing filter composed of a nonwoven fabric, wherein at least one of the first nonwoven fabric and the downstream third nonwoven fabric among the three-layer nonwoven fabric includes at least one selected from ruthenium metal, oxides and chlorides of ruthenium metal. This is characterized in that an aqueous solution or a coating agent containing the catalyst is applied or impregnated, and such a configuration in the deodorizing filter is a means for solving the above-mentioned conventional problems.
【０００８】本発明に係わる脱臭フィルター実施の一形
態として、請求項２に係わる脱臭フィルターにおいて
は、第１不織布に保持させた吸着材質量の０．０５〜１
０％の触媒が前記第１不織布および第３不織布の少なく
とも一方に介在させてある構成とし、同じく実施形態と
して、請求項３に係わる脱臭フィルターにおいては、第
１不織布に保持させた吸着材質量が２５〜５００ｇ／ｍ
2の範囲である構成とし、請求項４に係わる脱臭フィル
ターにおいては、吸着材が活性炭である構成とし、請求
項５に係わる脱臭フィルターにおいては、吸着材がｐＨ
７以下の活性炭および／または塩基性ガスを吸着する添
着活性炭を含んでいる構成とし、請求項６に係わる脱臭
フィルターにおいては、ｐＨ７以下の活性炭および／ま
たは塩基性ガスを吸着する添着活性炭が第１不織布の第
２不織布側に介在している構成とし、さらに、請求項７
に係わる脱臭フィルターにおいては、前記触媒を含有す
る水溶液もしくはコーティング剤が第３不織布の第１不
織布側の面に塗布してある構成とし、そして請求項８に
おいては、当該脱臭フィルターがひだ折りされた状態で
使用される構成としたことを特徴としている。As one embodiment of the deodorizing filter according to the present invention, in the deodorizing filter according to the second aspect, the mass of the adsorbent held by the first nonwoven fabric is 0.05 to 1%.
0% of the catalyst is interposed in at least one of the first non-woven fabric and the third non-woven fabric. As an embodiment, in the deodorizing filter according to claim 3, the mass of the adsorbent held by the first non-woven fabric is 25 to 500 g / m
In the deodorizing filter according to the fourth aspect, the adsorbent is activated carbon, and in the deodorizing filter according to the fifth aspect, the adsorbent is pH
7. The deodorizing filter according to claim 6, wherein the activated carbon adsorbing the activated carbon and / or the basic gas adsorbing the basic gas is pH 7 or less. A structure interposed on the second nonwoven fabric side of the nonwoven fabric, further comprising:
In the deodorizing filter according to the above, the aqueous solution or the coating agent containing the catalyst is applied to the surface of the third nonwoven fabric on the first nonwoven fabric side, and in claim 8, the deodorizing filter is folded. It is characterized in that it is used in a state.
【０００９】[0009]
【発明の実施の形態】本発明に係わる脱臭フィルター１
は、図１に示すように、第１ないし第３不織布からなる
３層構造を有し、除塵の為に設けられた第２不織布３お
よび第３不織布４と、これら第２および第３不織布３，
４の間に挟持され、吸着材５、好ましくは活性炭をバイ
ンダーで保持させた第１不織布２から主に構成されてい
る。そして、これら３層の不織布のうち、吸着材５を含
んだ第１不織布２および当該フィルター１の空気流れ方
向に対して最も下流側になる第３不織布４の一方もしく
は両方に、ルテニウム金属、ルテニウム金属の酸化物お
よびルテニウム金属の塩化物から選ばれた少なくとも１
種の触媒を含有する水溶液もしくはコーティング剤が塗
布あるいは含浸されており、第１不織布２に保持された
吸着材５に前記触媒が接触もしくは近接することによっ
て、活性炭などの吸着材５に捕集された臭気物質を酸化
還元作用によって固定化あるいは分解し、吸着材５の吸
着性能が再生されて、その初期性能を損なうことなく、
寿命が長期化することになる。DESCRIPTION OF THE PREFERRED EMBODIMENTS Deodorizing filter 1 according to the present invention
As shown in FIG. 1, has a three-layer structure composed of first to third nonwoven fabrics, a second nonwoven fabric 3 and a third nonwoven fabric 4 provided for dust removal, and a second nonwoven fabric 3 and a third nonwoven fabric 3. ,
4 and mainly comprises a first nonwoven fabric 2 in which an adsorbent 5, preferably activated carbon is held by a binder. Among these three layers of nonwoven fabric, one or both of the first nonwoven fabric 2 including the adsorbent 5 and the third nonwoven fabric 4 that is the most downstream in the air flow direction of the filter 1 are provided with ruthenium metal and ruthenium. At least one selected from metal oxides and ruthenium metal chlorides
An aqueous solution or a coating agent containing a kind of catalyst is applied or impregnated, and when the catalyst comes into contact with or comes close to the adsorbent 5 held on the first nonwoven fabric 2, the adsorbent 5 such as activated carbon is collected. The odorous substances are fixed or decomposed by the redox action, and the adsorption performance of the adsorbent 5 is regenerated, without impairing its initial performance.
The service life will be prolonged.
【００１０】すなわち、従来は活性炭などの吸着材に常
温触媒などを直接担持、添着することにより触媒の酸化
還元作用を得るようにしていたが、触媒を吸着材に添
着、担持する際にバインダー等を用いていたため、吸着
サイトへのバインダーの流れ込み等によって初期吸着性
能が損なわれるなどの問題が生じていた。本発明に係わ
る脱臭フィルター１においては、吸着材５に直接加工す
ることがないないため、触媒が近接ないし接触すること
によって、吸着材５が本来持っている初期性能を損なう
ことなく、吸着材５に吸着された臭気物質が酸化還元反
応によって固定化、分解されることになる。このとき前
記触媒は、バインダー等によって吸着材に添着、担持さ
せたものとは異なり、吸着材５の近傍に位置することに
よって機能を発揮する。That is, conventionally, a normal temperature catalyst or the like is directly supported and impregnated on an adsorbent such as activated carbon to obtain the oxidation-reduction action of the catalyst. However, when the catalyst is impregnated and supported on the adsorbent, a binder or the like is required. Therefore, problems such as the initial adsorption performance being impaired due to the flow of the binder into the adsorption site and the like have occurred. In the deodorizing filter 1 according to the present invention, since the adsorbent 5 is not directly processed, the catalyst comes close to or comes into contact with the adsorbent 5 without impairing the initial performance originally possessed by the adsorbent 5. The odorous substance adsorbed on the surface is fixed and decomposed by the oxidation-reduction reaction. At this time, the catalyst exerts its function by being located in the vicinity of the adsorbent 5, unlike the catalyst attached and supported on the adsorbent by a binder or the like.
【００１１】本発明に係わる脱臭フィルターに用いられ
る常温触媒としては、金属ルテニウムやルテニウムの酸
化物及び塩化物を用いることができるが、市場での入手
の容易さ、選定の多様さ、材料安定性、価格を考慮した
場合、とくに塩化ルテニウム水和物水溶液等が好まし
い。As the room temperature catalyst used in the deodorizing filter according to the present invention, metal ruthenium and oxides and chlorides of ruthenium can be used, but they are easily available in the market, a variety of selections, and material stability. Considering the price, an aqueous ruthenium chloride hydrate solution is particularly preferred.
【００１２】本発明において用いる触媒の量について
は、第１不織布２に保持させた吸着材に対して、質量比
で０．０５〜１０％の触媒を前記第１不織布および第３
不織布の少なくとも一方に介在させることが望ましい。
すなわち、触媒量が吸着材の０．０５％未満の場合には
触媒効果が発揮されず、逆に１０％を超えた場合には不
織布から析出して飛散してしまうことがあるので好まし
くない。また、１０％を超えると添着量が多くなってフ
ィルターの圧力損失が大きくなり、所望の通気性能が得
られなくなる傾向があることによる。Regarding the amount of the catalyst used in the present invention, 0.05 to 10% by mass of the catalyst is adsorbed on the first nonwoven fabric 2 with respect to the adsorbent held in the first nonwoven fabric 2.
It is desirable to interpose in at least one of the nonwoven fabrics.
That is, when the amount of the catalyst is less than 0.05% of the adsorbent, the catalytic effect is not exhibited, and when it exceeds 10%, the catalyst may undesirably precipitate and scatter from the nonwoven fabric. On the other hand, if it exceeds 10%, the amount of impregnation increases, the pressure loss of the filter increases, and the desired ventilation performance tends not to be obtained.
【００１３】また、吸着材の目付量としては、１ｍ2当
たり２５〜５００ｇの範囲とすることが好ましい。これ
は、吸着材が２５ｇ／ｍ2に満たないと吸着性能が十分
でなく、逆に５００ｇ／ｍ2を超えると脱臭フィルター
の通気性が阻害される傾向があることによる。The basis weight of the adsorbent is preferably in the range of 25 to 500 g per m 2 . This is because if the amount of the adsorbent is less than 25 g / m 2 , the adsorption performance is not sufficient, and if it exceeds 500 g / m 2 , the air permeability of the deodorizing filter tends to be impaired.
【００１４】本発明に係わる脱臭フィルターに用いる吸
着剤としては、例えば、活性炭やゼオライト，活性白
土、アルミナ、シリカゲル、アルミナーシリカなどを使
用することができるが、このうち、市場での入手の容易
性や性能、安定性、軽量性などを勘案すると活性炭の使
用が望ましい。As the adsorbent used in the deodorizing filter according to the present invention, for example, activated carbon, zeolite, activated clay, alumina, silica gel, alumina-silica and the like can be used. Considering properties, performance, stability, lightness, etc., the use of activated carbon is desirable.
【００１５】本発明に係わる脱臭フィルターに用いられ
る触媒として、ルテニウムの金属、酸化物あるいは塩化
物は、当該フィルターを通過する空気に塩基性ガスが含
まれていると、当該塩基性ガスは触媒にとって被毒物質
として作用する。そこで，触媒の劣化を小さくするため
には、吸着材としてｐＨ７以下の酸性を示す活性炭や塩
基性ガスを好適に吸着する添着活性炭を含むものを使用
することが望ましい。添着活性炭としては、例えば燐酸
を添着した活性炭など、公知のものを使用することがで
きる。その量については、吸着材全体の５〜５０％であ
ることが望ましい。これは、５％未満ではその効果が十
分ではなく、５０％を超えると塩基性ガス以外のガスの
吸着が十分に行われなくなることによる。このようなｐ
Ｈ７以下の酸性活性炭や塩基性ガスを好適に吸着する添
着活性炭が吸着材中に含まれることによって、塩基性ガ
スを含む空気と当該脱臭フィルターが接触する場合、塩
基性ガスがこれらの活性炭に優先的に吸着され、吸着さ
れたこの塩基性ガスは脱離しにくく、結果として触媒の
被毒が抑えられることになる。As a catalyst used in the deodorizing filter according to the present invention, a ruthenium metal, oxide or chloride contains a basic gas when air passing through the filter contains a basic gas. Acts as a poison. Therefore, in order to reduce the deterioration of the catalyst, it is desirable to use, as the adsorbent, an adsorbent containing activated carbon exhibiting acidity of pH 7 or less or impregnated activated carbon suitably adsorbing a basic gas. As the impregnated activated carbon, for example, a known substance such as activated carbon impregnated with phosphoric acid can be used. The amount is desirably 5 to 50% of the entire adsorbent. This is because if the content is less than 5%, the effect is not sufficient, and if it exceeds 50%, adsorption of gases other than the basic gas is not sufficiently performed. Such a p
When the activated carbon containing the basic gas and the deodorizing filter come into contact with each other by the inclusion of the activated carbon impregnated in the adsorbent which favorably absorbs the acidic activated carbon or the basic gas of H7 or less, the basic gas takes precedence over these activated carbons. The basic gas adsorbed and adsorbed is hard to be desorbed, and as a result, poisoning of the catalyst is suppressed.
【００１６】これらｐＨ７以下の酸性活性炭や添着活性
炭は、保持層である第１不織布２中における第２不織布
３の側に位置していることが望ましい。これは、空気の
流れ方向を考慮した場合、空気の上流側である第２不織
布３の側の塩基性物質を選択的に吸着する吸着材を配置
することによって、下流側である第１不織布２および／
または第３不織布４に位置する常温触媒の被毒が防止さ
れ、分解、固定作用が長期にわたって維持されることに
よる。The acidic activated carbon and the impregnated activated carbon having a pH of 7 or less are desirably located on the side of the second nonwoven fabric 3 in the first nonwoven fabric 2 serving as the holding layer. This is because, when the flow direction of air is taken into consideration, the adsorbent for selectively adsorbing the basic substance on the side of the second nonwoven fabric 3 which is on the upstream side of the air is disposed, so that the first nonwoven fabric 2 on the downstream side is arranged. and/
Alternatively, poisoning of the room temperature catalyst located in the third nonwoven fabric 4 is prevented, and the decomposition and fixing actions are maintained for a long time.
【００１７】触媒を含む上記水溶液あるいはコーティン
グ剤は、スプレーによる噴霧や、ディッピング等によっ
て、吸着材５を含み中央に位置する第１不織布２および
下流側の第３不織布４の一方もしくは両方に塗布ないし
含浸することができる。The aqueous solution or the coating agent containing the catalyst is applied to one or both of the first nonwoven fabric 2 including the adsorbent 5 and the third nonwoven fabric 4 located downstream and the adsorbent 5 by spraying or dipping. Can be impregnated.
【００１８】このとき、塗布方法や含浸方法については
特に限定されないが、活性炭などの吸着材５との接触面
に塗布されていることが望ましい。すなわち、効率的に
触媒反応を進めるためには、ルテニウムなどの酸化還元
触媒と活性炭等の吸着材５とが接触、もしくは十分に近
接している必要があり、このような構成が最良であるこ
とによる。したがって、最も有効な塗布手法としては、
吸着材５を保持する第１不織布２に上記水溶液やコーテ
ィング材を含浸させるか、第１不織布２の外側に位置す
る第３不織布４の内側の面、すなわち第１不織布２の側
の面にコーティング剤を塗布することが望ましいことに
なる。At this time, the application method and the impregnation method are not particularly limited, but it is preferable that the application is performed on the contact surface with the adsorbent 5 such as activated carbon. That is, in order to promote the catalytic reaction efficiently, the oxidation-reduction catalyst such as ruthenium and the adsorbent 5 such as activated carbon need to be in contact with or sufficiently close to each other. by. Therefore, the most effective application method is
The first nonwoven fabric 2 holding the adsorbent 5 is impregnated with the aqueous solution or the coating material, or the inside surface of the third nonwoven fabric 4 located outside the first nonwoven fabric 2, that is, the surface on the side of the first nonwoven fabric 2 is coated. It would be desirable to apply the agent.
【００１９】このような３層構造の脱臭フィルター１
は、図２に示すように、当該脱臭フィルター１をひだ折
り状態とし、ひだ折りされたフィルター１の第２不織布
３が空気の流れ方向に対して上流側に、第３不織布４が
下流側に向くように、例えば収納ユニット１０内に設置
し、フィルタエレメントとして使用することができる。
脱臭フィルター１をひだ折り構成にすることによって、
単位体積当たりの表面積が増大し、粉塵、臭気などの捕
集効率が向上することになる。また、実際の使用時に、
第２不織布３が空気流れ方向に対して上流側に、第３不
織布４が下流側に位置することによって、空気の上流側
において塩基性成分を含むガスを捕集することが可能と
なり、常温触媒の酸化還元作用を阻害することなく触媒
の活性化を図ることができる。Such a three-layer deodorizing filter 1
As shown in FIG. 2, the deodorizing filter 1 is folded in a folded state, and the second nonwoven fabric 3 of the folded filter 1 is located on the upstream side with respect to the air flow direction, and the third nonwoven fabric 4 is located on the downstream side. For example, it can be installed in the storage unit 10 so as to face and used as a filter element.
By making the deodorizing filter 1 a fold-fold configuration,
The surface area per unit volume is increased, and the efficiency of collecting dust and odor is improved. Also, during actual use,
Since the second nonwoven fabric 3 is located on the upstream side with respect to the air flow direction and the third nonwoven fabric 4 is located on the downstream side, a gas containing a basic component can be collected on the upstream side of the air. The catalyst can be activated without inhibiting the redox action of the catalyst.
【００２０】[0020]
【発明の効果】本発明の請求項１に係わる脱臭フィルタ
ーは、吸着剤をバインダーで保持させた第１不織布と、
その両側に除塵用に設けられた第２および第３不織布の
３層構造を備え、これら不織布のうち吸着材を保持する
第１不織布および空気の流れ方向下流側に位置する第３
不織布の一方もしくは両方に、ルテニウム金属、ルテニ
ウムの酸化物および塩化物から選ばれる少なくとも１種
の触媒を含有する水溶液もしくはコーティング剤が塗布
あるいは含浸された構造のものであるから、吸着材の吸
着サイトに触媒粒子やバインダーが流れ込むようなこと
がなくなり、吸着材本来の初期吸着性能を損なうことな
く、触媒作用を発揮させることができ、脱臭性能を長期
にわたって維持することができるという極めて優れた効
果をもたらすものである。The deodorizing filter according to claim 1 of the present invention comprises: a first nonwoven fabric having an adsorbent held by a binder;
It has a three-layer structure of second and third non-woven fabrics provided on both sides for dust removal, of which the first non-woven fabric holding the adsorbent and the third non-woven fabric located downstream of the air flow direction.
Since one or both of the nonwoven fabrics is coated or impregnated with an aqueous solution or a coating agent containing at least one catalyst selected from ruthenium metal, ruthenium oxide and chloride, the adsorption site of the adsorbent is This prevents the catalyst particles and the binder from flowing into the sorbent, and enables the catalytic action to be exhibited without impairing the original initial adsorption performance of the adsorbent. To bring.
【００２１】本発明の請求項２に係わる脱臭フィルター
においては、当該フィルター中の触媒の添加量を吸着材
質量の０．０５〜１０％としたものであるから、フィル
ターとしての通気性能を損なうことなく、触媒効果を十
分に発揮して吸着性能を着実に再生するこができ、請求
項３に係わる脱臭フィルターにおいては、第１不織布に
保持させた吸着材質量が２５〜５００ｇ／ｍ2の範囲の
ものであるから、当該フィルターの通気性を損なうこと
なく、吸着性能を確保することができ、請求項４に係わ
る脱臭フィルターにおいては、吸着材として活性炭が用
いてあるので、入手が容易で、脱臭性能および安定性に
優れたフィルターを安価に得ることができ、請求項５に
係わる脱臭フィルターにおいては、吸着材がｐＨ７以下
の酸性の活性炭および塩基性ガスを吸着する添着活性炭
の少なくとも一方を含んでいることから、通過する空気
中の塩基性ガスを優先的に吸着して、触媒の被毒を防止
することができ、請求項６に係わる脱臭フィルターにお
いては、上記の酸性活性炭や塩基性ガス用添着活性炭が
第１不織布の第２不織布側に介在しており、これら活性
炭が触媒よりも空気流の上流側に位置することから、上
記被毒防止の効果がより確実なものとなる。さらに、請
求項７に係わる脱臭フィルターにおいては、触媒を含有
する水溶液もしくはコーティング剤が第３不織布の第１
不織布側の面に塗布してあることから、触媒が吸着材に
対してより接近した位置に存在することになり、触媒作
用をより確実なものとして脱臭フィルターの脱臭性能を
より長く持続させることができ、請求項８に係わる脱臭
フィルターにおいては、当該フィルターがひだ折りされ
た状態で使用されるものであるから、単位体積当たりの
表面積が増大し、粉塵、臭気などの捕集効率を向上させ
ることができるというさらに優れた効果がもたらされ
る。In the deodorizing filter according to the second aspect of the present invention, the amount of the catalyst in the filter is set to 0.05 to 10% of the mass of the adsorbent, so that the ventilation performance of the filter is impaired. In addition, in the deodorizing filter according to claim 3, the mass of the adsorbent held in the first nonwoven fabric is in the range of 25 to 500 g / m 2 . Therefore, without impairing the air permeability of the filter, it is possible to ensure the adsorption performance, in the deodorizing filter according to claim 4, since activated carbon is used as an adsorbent, it is easy to obtain, A filter excellent in deodorizing performance and stability can be obtained at low cost. In the deodorizing filter according to claim 5, the adsorbent is acidic activated carbon having a pH of 7 or less. And at least one of the impregnated activated carbon that adsorbs the basic gas and adsorbs the basic gas in the passing air, thereby preventing poisoning of the catalyst. In the deodorizing filter concerned, the above-mentioned acidic activated carbon or the activated carbon impregnated with a basic gas is interposed on the second nonwoven fabric side of the first nonwoven fabric, and since these activated carbons are located on the upstream side of the airflow relative to the catalyst, The effect of poisoning prevention is more reliable. Further, in the deodorizing filter according to claim 7, the catalyst-containing aqueous solution or the coating agent is the first non-woven fabric of the third nonwoven fabric.
Since it is applied to the non-woven fabric side, the catalyst is located closer to the adsorbent, so that the catalytic action is more reliable and the deodorizing performance of the deodorizing filter can be maintained longer. In the deodorizing filter according to claim 8, since the filter is used in a folded state, the surface area per unit volume is increased, and the efficiency of collecting dust and odor is improved. The more excellent effect that it can do is brought.
【００２２】[0022]
【実施例】以下に、本発明を実施例に基づいてさらに具
体的に説明する。なお、本発明は、このような実施例の
みに限定されるものではない。EXAMPLES The present invention will be described below more specifically based on examples. Note that the present invention is not limited to only such an embodiment.
【００２３】また、以下の各実施例および比較例におい
ては、図1に示したような3層構造のフィルター１を得る
ために、除塵用の第２および第３不織布３および４とし
て、主に繊維径１７〜５０μｍ（３〜１５デニール）の
ポリプロピレン繊維からなる３０〜１００ｇ／ｍ2の目
付を有したものを用い、吸着材５を保持する第１不織布
２としては、繊維径１８〜５０μｍ（４〜１５デニー
ル）のポリプロピレン繊維もしくは繊維径１８〜４５μ
ｍ（４〜１５デニール）のレーヨンなどの繊維からなる
３０〜８０ｇ／ｍ2の目付を有する不織布を用いた。吸
着材５としては、粒径１００μｍ以上の活性炭を使用
し、ホットメルトパウダを用いて上記第１不織布２に保
持した。In each of the following Examples and Comparative Examples, in order to obtain a filter 1 having a three-layer structure as shown in FIG. 1, the second and third nonwoven fabrics 3 and 4 for removing dust are mainly used. The first nonwoven fabric 2 holding the adsorbent 5 is made of polypropylene fiber having a fiber diameter of 17 to 50 μm (3 to 15 denier) and having a basis weight of 30 to 100 g / m 2 , and the fiber diameter is 18 to 50 μm ( 4 to 15 denier) polypropylene fiber or fiber diameter 18 to 45μ
A nonwoven fabric having a basis weight of 30 to 80 g / m < 2 > made of fibers such as rayon having an m (4 to 15 denier) was used. Activated carbon having a particle size of 100 μm or more was used as the adsorbent 5 and was held on the first nonwoven fabric 2 using hot melt powder.
【００２４】実施例１ 上記フィルター材料に対して、吸着材５として酸洗処理
した活性炭（ｐＨ４）を第１不織布２の第２フィルター
３の側に１２５ｇ／ｍ2、通常の活性炭を第１不織布２
の第３フィルター４の側に１２５ｇ／ｍ2、全体で２５
０ｇ／ｍ2の活性炭を第１不織布２に担持させると共
に、固形分濃度１０％の塩化ルテニウム溶液（田中貴金
属工業株式会社製）を第３不織布４の内面（第１不織布
面２の側）に１２５ｇ／ｍ2塗布し、１２０℃の恒温槽
内で５分間乾燥させ、水分を蒸発させて常温触媒を加工
処理して、脱臭フィルター１を得た。このとき、触媒固
形分の担持量は１２．５ｇ／ｍ2と算出され、その質量
は吸着材５に対して５％となる。 Example 1 Activated carbon (pH 4) pickled as an adsorbent 5 was applied to the above filter material on the side of the second filter 3 of the first nonwoven fabric 2 at 125 g / m 2 , and ordinary activated carbon was applied to the first nonwoven fabric. 2
125 g / m 2 on the side of the third filter 4 of
0 g / m 2 of activated carbon is supported on the first nonwoven fabric 2, and a ruthenium chloride solution (manufactured by Tanaka Kikinzoku Kogyo Co., Ltd.) having a solid concentration of 10% is applied to the inner surface (the side of the first nonwoven fabric surface 2) of the third nonwoven fabric 4. 125 g / m 2 was applied and dried in a thermostat at 120 ° C. for 5 minutes, and water was evaporated to process the room temperature catalyst to obtain a deodorizing filter 1. At this time, the carried amount of the solid catalyst is calculated to be 12.5 g / m 2, and its mass is 5% with respect to the adsorbent 5.
【００２５】実施例２ 上記フィルター材料に対して、吸着材５として酸洗処理
した活性炭（ｐＨ４）を第１不織布２の第２フィルター
３の側に２５０ｇ／ｍ2、通常の活性炭を第１不織布２
の第３フィルター４の側に２５０ｇ／ｍ2、全体で５０
０ｇ／ｍ2の活性炭を第１不織布２に担持させると共
に、固形分濃度１０％の塩化ルテニウム溶液（田中貴金
属工業株式会社製）を第３不織布４の内面（第１不織布
面２の側）に５００ｇ／ｍ2塗布したのち、同様に１２
０℃の恒温槽内で５分間乾燥し、水分を蒸発させて常温
触媒を加工処理し、脱臭フィルター１を得た。このと
き、触媒固形分の担持量は５０．０ｇ／ｍ2と算出さ
れ、その質量は吸着材５に対して１０％となる。 Example 2 250 g / m 2 of activated carbon (pH 4) pickled as an adsorbent 5 was applied to the above filter material on the side of the second filter 3 of the first nonwoven fabric 2 , and ordinary activated carbon was applied to the first nonwoven fabric. 2
250 g / m 2 on the side of the third filter 4 of
0 g / m 2 of activated carbon is supported on the first nonwoven fabric 2, and a ruthenium chloride solution (manufactured by Tanaka Kikinzoku Kogyo Co., Ltd.) having a solid concentration of 10% is applied to the inner surface (the side of the first nonwoven fabric surface 2) of the third nonwoven fabric 4. After applying 500 g / m 2 , 12
After drying in a thermostat at 0 ° C. for 5 minutes and evaporating water, the ordinary temperature catalyst was processed to obtain a deodorizing filter 1. At this time, the carried amount of the solid catalyst is calculated to be 50.0 g / m 2, and its mass is 10% with respect to the adsorbent 5.
【００２６】実施例３ 上記フィルター材料に対して、吸着材５として酸洗処理
した活性炭（ｐＨ４）を第１不織布２の第２フィルター
３の側に１２．５ｇ／ｍ2、通常の活性炭を第１不織布
２の第３フィルター４の側に１２．５ｇ／ｍ2、全体で
２５ｇ／ｍ2の活性炭を第１不織布２に担持させると共
に、固形分濃度１０％の塩化ルテニウム溶液（田中貴金
属工業株式会社製）を第３不織布４の内面（第１不織布
面２の側）に１．３ｇ／ｍ2塗布したのち、１２０℃の
恒温槽内で２分間乾燥し、水分を蒸発させて常温触媒を
加工処理し、脱臭フィルター１を得た。このとき、触媒
固形分の担持量は０．１３ｇ／ｍ2と算出され、その質
量としては吸着材５に対して０．５２％となる。 Example 3 Activated carbon (pH 4) pickled as an adsorbent 5 was applied to the above filter material on the side of the second filter 3 of the first nonwoven fabric 2 at 12.5 g / m 2 , and ordinary activated carbon was applied to the filter material. 12.5 g / m 2 , a total of 25 g / m 2 of activated carbon is supported on the first nonwoven fabric 2 on the side of the third filter 4 of the first nonwoven fabric 2, and a ruthenium chloride solution having a solid concentration of 10% (Tanaka Kikinzoku Kogyo Co., Ltd.) 1.3 g / m 2 on the inner surface of the third non-woven fabric 4 (the side of the first non-woven fabric surface 2), and then dried in a thermostat at 120 ° C. for 2 minutes to evaporate water to remove the room temperature catalyst. After processing, a deodorizing filter 1 was obtained. At this time, the carried amount of the solid catalyst is calculated to be 0.13 g / m 2, and the mass thereof is 0.52% with respect to the adsorbent 5.
【００２７】実施例４ 上記フィルター材料に対して、吸着材５として酸洗処理
した活性炭（ｐＨ４）を第１不織布２の第２フィルター
３の側に１２５ｇ／ｍ2、通常の活性炭を第１不織布２
の第３フィルター４の側に１２５ｇ／ｍ2、全体で２５
０ｇ／ｍ2の活性炭を第１不織布２に担持させると共
に、固形分濃度１０％の塩化ルテニウム溶液（田中貴金
属工業株式会社製）を第３不織布４の内面（第１不織布
面２の側）に１．３ｇ／ｍ2塗布したのち、１２０℃の
恒温槽内で２分間乾燥し、水分を蒸発させて常温触媒を
加工処理し、脱臭フィルター１を得た。このとき、触媒
固形分の担持量は０．１３ｇ／ｍ2と算出され、その質
量としては吸着材５に対して０．０５２％となる。 Example 4 Activated carbon (pH 4) pickled as an adsorbent 5 was applied to the above filter material on the side of the second filter 3 of the first nonwoven fabric 2 at 125 g / m 2 , and ordinary activated carbon was applied to the first nonwoven fabric. 2
125 g / m 2 on the side of the third filter 4 of
0 g / m 2 of activated carbon is supported on the first nonwoven fabric 2, and a ruthenium chloride solution (manufactured by Tanaka Kikinzoku Kogyo Co., Ltd.) having a solid concentration of 10% is applied to the inner surface (the side of the first nonwoven fabric surface 2) of the third nonwoven fabric 4. After applying 1.3 g / m 2, it was dried in a thermostat at 120 ° C. for 2 minutes, and the water was evaporated to process the room temperature catalyst to obtain a deodorizing filter 1. At this time, the carried amount of the solid catalyst is calculated to be 0.13 g / m 2, and its mass is 0.052% with respect to the adsorbent 5.
【００２８】実施例５ 上記フィルター材料に対して、吸着材５として酸洗処理
した活性炭（ｐＨ４）を第１不織布２の第２フィルター
３の側に１２５ｇ／ｍ2、通常の活性炭を第１不織布２
の第３フィルター４の側に１２５ｇ／ｍ2、全体で２５
０ｇ／ｍ2の活性炭を第１不織布２に担持させると共
に、固形分濃度１０％の塩化ルテニウム溶液（田中貴金
属工業株式会社製）を第１不織布２に１２５ｇ／ｍ2塗
布したのち、１２０℃の恒温槽内で５分間乾燥させ、水
分を蒸発させて常温触媒を加工処理して、脱臭フィルタ
ー１を得た。このとき、触媒固形分の担持量は１２．５
ｇ／ｍ 2と算出され、その質量は吸着材５に対して５％
となる。[0028]Example 5 Pickling treatment for the above filter material as adsorbent 5
Activated carbon (pH 4) is filtered through the second filter of the first nonwoven fabric 2
125g / m on side 3Two, Ordinary activated carbon in the first nonwoven fabric 2
125 g / m on the side of the third filter 4Two, 25 in total
0 g / mTwoWhen activated carbon is supported on the first nonwoven fabric 2,
With a 10% solids ruthenium chloride solution (Tanaka Kikin
125 g / m2 for the first nonwoven fabric 2TwoPaint
After being clothed, dried in a thermostat at 120 ° C for 5 minutes,
Evaporate the minute amount to process the normal temperature catalyst, and then deodorize the filter.
-1 was obtained. At this time, the supported amount of the catalyst solid content was 12.5.
g / m TwoAnd its mass is 5% with respect to the adsorbent 5.
Becomes
【００２９】比較例１ 上記フィルター材料に対して、吸着材５として、通常の
活性炭を第１不織布２の第２フィルター３の側と第３フ
ィルター４の側とにそれぞれ１２５ｇ／ｍ2、全体で２
５０ｇ／ｍ2の活性炭を第１不織布２に担持させて、脱
臭フィルターを得た。 Comparative Example 1 Normal activated carbon was used as an adsorbent 5 for the above filter material on the side of the second filter 3 and the side of the third filter 4 of the first nonwoven fabric 2 at 125 g / m 2 , respectively. 2
50 g / m 2 of activated carbon was supported on the first nonwoven fabric 2 to obtain a deodorizing filter.
【００３０】比較例２ 上記フィルター材料に対して、吸着材５として酸洗処理
した活性炭（ｐＨ４）を第１不織布２の第２フィルター
３の側に１２５ｇ／ｍ2、通常の活性炭を第１不織布２
の第３フィルター４の側に１２５ｇ／ｍ2、全体で２５
０ｇ／ｍ2の活性炭を第１不織布２に担持させて、脱臭
フィルターを得た。COMPARATIVE EXAMPLE 2 Activated carbon (pH 4) pickled as an adsorbent 5 was applied to the above filter material on the side of the second filter 3 of the first nonwoven fabric 2 at 125 g / m 2 , and ordinary activated carbon was applied to the first nonwoven fabric. 2
125 g / m 2 on the side of the third filter 4 of
0 g / m 2 of activated carbon was supported on the first nonwoven fabric 2 to obtain a deodorizing filter.
【００３１】比較例３ 上記フィルター材料に対して、吸着材５として、第１不
織布２の第２フィルター３の側と第３フィルター４の側
とに、ルテニウムを５％含むルテニウム添着活性炭（ネ
オフィルター工業製）をそれぞれ１２５ｇ／ｍ2づつ、
全体で２５０ｇ／ｍ2の活性炭を第１不織布２に担持さ
せることによって、脱臭フィルターを得た。COMPARATIVE EXAMPLE 3 With respect to the above filter material, as an adsorbent 5, a ruthenium-impregnated activated carbon containing 5% ruthenium (neofilter) was provided on the side of the second filter 3 and the side of the third filter 4 of the first nonwoven fabric 2. Industrial) at 125 g / m 2 each,
A deodorizing filter was obtained by causing the first nonwoven fabric 2 to carry 250 g / m 2 of activated carbon in total.
【００３２】上記実施例１〜５および比較例１〜３で得
られた脱臭フィルターを下記の脱臭試験に供し、それぞ
れのガス除去性能を比較評価した。The deodorizing filters obtained in Examples 1 to 5 and Comparative Examples 1 to 3 were subjected to the following deodorizing tests, and the gas removal performance of each was compared and evaluated.
【００３３】＜脱臭試験要領＞臭気分析用の１０Ｌテド
ラバッグ内に、たばこ煙の代表成分としてアンモニア７
０ｐｐｍをとり、５０ｍｍ径のフィルターに対して、
０．１ｍ／ｓｅｃの流速で３０分間循環させたのちフィ
ルターを３０分間外気中に放置するという操作を都合１
０回繰返した後、アセトアルデヒド７０ｐｐｍをとり、
５０ｍｍ径のフィルターに対して、０．１ｍ／ｓｅｃの
流速で３０分間循環させたのち、バッグ内のガス濃度を
測定した。また、耐久試験として、上記試験を行った
後、フィルターを３０分間外気放置したのち、再度同様
の操作を１０回繰返したのちの除去率の測定を行った。<Procedure for Deodorization Test> In a 10-liter tedra bag for odor analysis, ammonia 7 was used as a representative component of tobacco smoke.
Take 0 ppm and for a 50 mm diameter filter
After circulating at a flow rate of 0.1 m / sec for 30 minutes, the operation of leaving the filter in the open air for 30 minutes is convenient.
After repeating 0 times, take 70 ppm of acetaldehyde,
After circulating through a 50 mm diameter filter at a flow rate of 0.1 m / sec for 30 minutes, the gas concentration in the bag was measured. In addition, as a durability test, after performing the above test, the filter was left in the open air for 30 minutes, and the same operation was repeated 10 times again to measure the removal rate.
【００３４】上記各実施例および比較例で得られた脱臭
フィルターの初期および耐久脱臭性能をそれらの仕様と
共に表１にまとめて示す。The initial and durable deodorizing performances of the deodorizing filters obtained in the above Examples and Comparative Examples are shown together with their specifications in Table 1.
【００３５】[0035]
【表１】 [Table 1]
【００３６】これらの結果から明らかなように、本発明
の実施例１ないし実施例５に係わる脱臭フィルターにお
いては、いずれも初期性能を損なうことなく優れた耐久
性を備えていることが確認された。As is clear from these results, it was confirmed that all of the deodorizing filters according to Examples 1 to 5 of the present invention had excellent durability without impairing the initial performance. .
【００３７】これに対し、比較例１，２に係わるフィル
ターにおいては、初期性能、耐久性能共に劣化し、比較
例３に係わるフィルターにおいては、初期性能低下は小
さいものの、再生性が損なわれ、耐久性で性能劣化が認
められた。On the other hand, in the filters according to Comparative Examples 1 and 2, both the initial performance and the durability were deteriorated. In the filter according to Comparative Example 3, although the decrease in the initial performance was small, the reproducibility was impaired. Deterioration in performance was observed in the properties.
【図１】本発明に係わる脱臭フィルターの構造を示す断
面図である。FIG. 1 is a sectional view showing the structure of a deodorizing filter according to the present invention.
【図２】図１に示した脱臭フィルターをひだ折りして使
用するフィルターエレメントの形状を示す斜視図であ
る。FIG. 2 is a perspective view showing a shape of a filter element used by folding the deodorizing filter shown in FIG. 1;
１ 脱臭フィルター ２ 第１不織布 ３ 第２不織布 ４ 第３不織布 ５ 吸着材 DESCRIPTION OF SYMBOLS 1 Deodorizing filter 2 1st nonwoven fabric 3 2nd nonwoven fabric 4 3rd nonwoven fabric 5 Adsorbent
───────────────────────────────────────────────────── 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 53/86 ＺＡＢ Ｂ０１Ｊ 35/06 Ａ Ｂ０１Ｊ 27/13 Ｂ０１Ｄ 53/36 Ｅ 35/06 Ｇ ＺＡＢＨ Ｆターム(参考） 4C080 AA05 AA07 BB02 JJ06 KK08 MM02 MM05 MM07 NN05 4D019 AA01 BA13 BB03 BB10 BC05 BC07 BC10 BD06 CA02 4D048 AA08 AA19 AA22 AB03 BA05X BA32X BA41Y BA43X BB08 BB12 CA06 CC40 CD01 CD05 4G069 AA03 AA08 BA08A BA08B BB02A BB04A BB08A BB08B BC70A BC70B BD12A BD12B CA01 CA10 CA17 DA06 EA10 FA03 FB23 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) B01D 53/86 ZAB B01J 35/06 A B01J 27/13 B01D 53/36 E 35/06 G ZABH F term ( (Reference) 4C080 AA05 AA07 BB02 JJ06 KK08 MM02 MM05 MM07 NN05 4D019 AA01 BA13 BB03 BB10 BC05 BC07 BC10 BD06 CA02 4D048 AA08 AA19 AA22 AB03 BA05X BA32X BA41Y BA43X BB08 BB12 CA08 BC08 AB08A08 BC03 A CA01 CA10 CA17 DA06 EA10 FA03 FB23
Claims (8)
む第１不織布と、空気の流れ方向に対して第１不織布の
上流側および下流側にそれぞれ除塵用に配設された第２
および第３不織布との３層の不織布からなる脱臭フィル
ターであって、これら３層の不織布のうち第１不織布お
よび下流側に位置する第３不織布の少なくとも一方に、
ルテニウム金属、ルテニウム金属の酸化物および塩化物
から選ばれる少なくとも１種の触媒を含有する水溶液も
しくはコーティング剤が塗布あるいは含浸されているこ
とを特徴とする脱臭フィルター。1. A first nonwoven fabric including an adsorbent held by a binder, and a second nonwoven fabric disposed on an upstream side and a downstream side of the first nonwoven fabric with respect to a flow direction of air, respectively, for dust removal.
And a deodorizing filter composed of three layers of nonwoven fabric with a third nonwoven fabric, wherein at least one of the first nonwoven fabric and the third nonwoven fabric located on the downstream side among these three layers of nonwoven fabrics,
A deodorizing filter, which is coated or impregnated with an aqueous solution or a coating agent containing at least one catalyst selected from ruthenium metal, ruthenium metal oxide and chloride.
０．０５〜１０％の触媒が前記第１不織布および第３不
織布の少なくとも一方に介在させてあることを特徴とす
る請求項１記載の脱臭フィルター。2. The catalyst according to claim 1, wherein 0.05 to 10% of the mass of the adsorbent held by the first nonwoven fabric is interposed in at least one of the first nonwoven fabric and the third nonwoven fabric. Deodorizing filter.
５〜５００ｇ／ｍ2の範囲であることを特徴とする請求
項１または請求項２記載の脱臭フィルター。3. The mass of the adsorbent held on the first nonwoven fabric is 2
Deodorizing filter according to claim 1 or claim 2, wherein the range of 5 to 500 g / m 2.
請求項１ないし請求項３のいずれかに記載の脱臭フィル
ター。4. The deodorizing filter according to claim 1, wherein the adsorbent is activated carbon.
たは塩基性ガスを吸着する添着活性炭を含んでいること
を特徴とする請求項１ないし請求項４のいずれかに記載
の脱臭フィルター。5. The deodorizing filter according to claim 1, wherein the adsorbent contains activated carbon having a pH of 7 or less and / or impregnated activated carbon adsorbing a basic gas.
性ガスを吸着する添着活性炭が第１不織布の第２不織布
側に介在していることを特徴とする請求項５記載の脱臭
フィルター。6. The deodorizing filter according to claim 5, wherein activated carbon impregnated with activated carbon having a pH of 7 or less and / or basic gas is interposed on the second nonwoven fabric side of the first nonwoven fabric.
ティング剤が第３不織布の第１不織布側の面に塗布して
あることを特徴とする請求項１ないし請求項６のいずれ
かに記載の脱臭フィルター。7. The deodorizing filter according to claim 1, wherein the aqueous solution or the coating agent containing the catalyst is applied to a surface of the third nonwoven fabric on the first nonwoven fabric side. .
特徴とする請求項１ないし請求項７のいずれかに記載の
脱臭フィルター。8. The deodorizing filter according to claim 1, wherein the deodorizing filter is used in a folded state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000288178A JP2002095913A (en) | 2000-09-22 | 2000-09-22 | Deodorizing filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000288178A JP2002095913A (en) | 2000-09-22 | 2000-09-22 | Deodorizing filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002095913A true JP2002095913A (en) | 2002-04-02 |
Family
ID=18771808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000288178A Pending JP2002095913A (en) | 2000-09-22 | 2000-09-22 | Deodorizing filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002095913A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006159189A (en) * | 2004-12-02 | 2006-06-22 | Japan Vilene Co Ltd | Adsorption filter |
| JP2007111692A (en) * | 2005-09-22 | 2007-05-10 | Daiwabo Co Ltd | Functional separation material, gas adsorbent and filter for deodorizing tobacco |
| KR20140122318A (en) * | 2013-04-09 | 2014-10-20 | 삼성전자주식회사 | Deodorizing filter and refrigerator using the same |
-
2000
- 2000-09-22 JP JP2000288178A patent/JP2002095913A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006159189A (en) * | 2004-12-02 | 2006-06-22 | Japan Vilene Co Ltd | Adsorption filter |
| JP2007111692A (en) * | 2005-09-22 | 2007-05-10 | Daiwabo Co Ltd | Functional separation material, gas adsorbent and filter for deodorizing tobacco |
| KR20140122318A (en) * | 2013-04-09 | 2014-10-20 | 삼성전자주식회사 | Deodorizing filter and refrigerator using the same |
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