JP5195127B2 - Deodorizing filter - Google Patents
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- JP5195127B2 JP5195127B2 JP2008197304A JP2008197304A JP5195127B2 JP 5195127 B2 JP5195127 B2 JP 5195127B2 JP 2008197304 A JP2008197304 A JP 2008197304A JP 2008197304 A JP2008197304 A JP 2008197304A JP 5195127 B2 JP5195127 B2 JP 5195127B2
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本発明は、コピー機、プリンター、多機能ＯＡ機、コンピュータ、プロジェクター、ＰＯＤ印刷機等の電子機器の排出ガス中に含まれる有害ガス成分を除去するための脱臭浄化フィルタに関する。ここで言う、有害ガス成分とは、人体、環境に対する有害ガス成分だけでなく、前記電子機器に対する有害ガス成分、例えば、前記電子機器の故障の原因となりうるガス等も含めるものである。 The present invention relates to a deodorizing and purifying filter for removing harmful gas components contained in exhaust gas of electronic devices such as copiers, printers, multi-function OA machines, computers, projectors, and POD printers. The harmful gas component referred to here includes not only harmful gas components for the human body and the environment but also harmful gas components for the electronic device, for example, gas that may cause failure of the electronic device.
コピー機、プリンター、多機能ＯＡ機、コンピュータ、プロジェクター、ＰＯＤ印刷機等の電子機器は、近年集積化、小型化が進み、機器内部に熱がこもるのを避けるために、ファン等による排熱が欠かせなくなってきている。そして、インク、トナー等といった印字の際に用いられる成分、電子機器の本体を構成するプラスティック、および、各種接合部に使用されているゴム等に含まれている各種成分がガス化し、有害ガス成分として排熱と共に室内へと排出されている。また、コピー機、レーザープリンター等では高電圧を使用するため、前記ガス成分だけでなく、オゾンといった有害ガス成分も排出されている。近年、環境問題への意識の高まりから、有害ガス成分に関して、排出規制が行われるようになった。例えば、ドイツでは、「ＢＡＭ（ブルーエンジェルマーク）」という環境ラベルが制定されており、電子機器毎に果たすべき環境性能基準が定められている。 In recent years, electronic devices such as copiers, printers, multi-function OA machines, computers, projectors, and POD printers have been increasingly integrated and miniaturized. It is becoming indispensable. In addition, various components contained in components such as ink and toner used in printing, plastics constituting the main body of electronic equipment, and rubber used in various joints are gasified, and harmful gas components It is discharged into the room along with exhaust heat. In addition, since a high voltage is used in a copying machine, a laser printer, and the like, not only the gas components but also harmful gas components such as ozone are discharged. In recent years, due to increased awareness of environmental issues, emission regulations have been implemented for harmful gas components. For example, in Germany, an environmental label “BAM (Blue Angel Mark)” has been established, and environmental performance standards to be achieved for each electronic device are defined.
活性炭をハニカム担体に担持した活性炭担持ハニカム構造体についてはよく知られている（例えば、特許文献１、２参照）。一般に、活性炭は、排出ガス中の有害ガス成分を除去することができるため、前記活性炭担持ハニカム構造体を用いて、前記電子機器の排出ガス中に含まれる有害ガス成分を除去することが考えられる。しかしながら、活性炭とハニカム担体との結合剤はアクリル系バインダー、塩化ビニリデン系バインダー、コロイダルシリカであり、水溶性でないため、１０重量％程度のバインダー量では、活性炭とハニカム担体との接着性は十分でなく、脱落が生じるという問題がある。ここで言う水溶性とは２５℃、１気圧条件で水に溶解することを意味する。 An activated carbon-supported honeycomb structure in which activated carbon is supported on a honeycomb carrier is well known (for example, see Patent Documents 1 and 2). In general, activated carbon can remove harmful gas components in the exhaust gas, so it is considered that the activated gas-supported honeycomb structure is used to remove harmful gas components contained in the exhaust gas of the electronic device. . However, the binder between the activated carbon and the honeycomb carrier is an acrylic binder, a vinylidene chloride binder, and colloidal silica, and is not water-soluble. Therefore, the adhesive amount between the activated carbon and the honeycomb carrier is sufficient with a binder amount of about 10% by weight. However, there is a problem that dropout occurs. The term “water-soluble” as used herein means dissolution in water at 25 ° C. and 1 atm.
オゾン分解触媒フィルター及びその製造方法が開示されている（例えば、特許文献３参照）。オゾン分解触媒、もしくは、活性炭の、のり剤としてカルボキシメチルセルロース、エチルセルロース、アルギン酸ソーダといった水溶性有機バインダーが開示されている。しかしながら、水溶性有機バインダーは、オゾン分解触媒、もしくは、活性炭を担体表面に強固に担持することができるという利点を有する反面、オゾン分解触媒、もしくは、活性炭を被覆してしまい、除去性能が低下してしまうという問題がある。 An ozonolysis catalyst filter and a method for producing the same are disclosed (for example, see Patent Document 3). Water-soluble organic binders such as carboxymethyl cellulose, ethyl cellulose, and sodium alginate are disclosed as pastes for ozonolysis catalysts or activated carbon. However, the water-soluble organic binder has the advantage that the ozone decomposition catalyst or the activated carbon can be firmly supported on the surface of the carrier, but on the other hand, the ozone decomposition catalyst or the activated carbon is coated and the removal performance is lowered. There is a problem that it ends up.
上述のとおり、コピー機、プリンター、多機能ＯＡ機、コンピュータ、プロジェクター、ＰＯＤ印刷機等の電子機器の排出ガス中に含まれる有害ガス成分を除去するための脱臭浄化フィルタに関して、担体表面に脱臭剤が強固に担持されており、水溶性有機バインダーを使用しても除去性能を高く保持できる脱臭浄化フィルタは見当たらないのが現状である。 As described above, regarding the deodorizing purification filter for removing harmful gas components contained in the exhaust gas of electronic devices such as copiers, printers, multi-function OA machines, computers, projectors, POD printing machines, etc., deodorizers on the carrier surface However, there is no deodorizing and purifying filter that can maintain high removal performance even when a water-soluble organic binder is used.
本発明は上記従来技術の課題を背景になされたものであり、コピー機、プリンター、多機能ＯＡ機、コンピュータ、プロジェクター、ＰＯＤ印刷機等の電子機器の排出ガス中に含まれる有害ガス成分を除去するための脱臭浄化フィルタに関するものであり、担体表面に脱臭剤が強固に担持されており、水溶性有機バインダーを使用したにも関わらず、除去性能を高く保持できる脱臭浄化フィルタを提供することを目的とする。 The present invention has been made against the background of the above prior art, and removes harmful gas components contained in the exhaust gas of electronic devices such as copiers, printers, multi-function OA machines, computers, projectors, and POD printers. The present invention relates to a deodorizing and purifying filter, and a deodorizing and purifying filter capable of maintaining high removal performance despite the fact that a deodorizing agent is firmly supported on the surface of the carrier and using a water-soluble organic binder. Objective.
本発明者は上記課題を解決するため、鋭意研究した結果、遂に本発明を完成するに到った。すなわち本発明は、以下の通りである。
１．担体表面に、少なくとも平均粒子直径１．０〜５０μｍの脱臭剤、平均アスペクト比１０〜５００を有する無機化合物、および水溶性有機バインダーを含む層が形成されている脱臭浄化フィルタ。
２．前記無機化合物の短辺の長さの平均値、および長辺の長さの平均値が０．０５〜１００μｍである上記１に記載の脱臭浄化フィルタ。
３． 前記担体表面に形成されている層に含まれる無機化合物の量が、担体表面に形成される層の固形分に対する重量比率が０．５〜３０重量％である上記１または２に記載の脱臭浄化フィルタ。
４． 前記脱臭剤が少なくとも活性炭、酸化マンガンのいずれかを含有する上記１〜３のいずれかに記載の脱臭浄化フィルタ。
As a result of intensive studies in order to solve the above problems, the present inventors have finally completed the present invention. That is, the present invention is as follows.
1. A deodorizing and purifying filter in which a layer containing at least a deodorizer having an average particle diameter of 1.0 to 50 µm, an inorganic compound having an average aspect ratio of 10 to 500, and a water-soluble organic binder is formed on the surface of the carrier.
2. 2. The deodorizing purification filter according to 1 above, wherein an average value of short side lengths and an average value of long side lengths of the inorganic compound are 0.05 to 100 μm.
3. 3. The deodorization purification according to 1 or 2 above, wherein the amount of the inorganic compound contained in the layer formed on the surface of the carrier is 0.5 to 30% by weight with respect to the solid content of the layer formed on the surface of the carrier. filter.
4). 4. The deodorizing and purifying filter according to any one of 1 to 3, wherein the deodorizer contains at least activated carbon or manganese oxide.
本発明による脱臭浄化フィルタは、担体表面に少なくとも平均粒子直径１．０〜５０μｍの脱臭剤、平均アスペクト比１０〜５００を有する無機化合物、および水溶性有機バインダーを含む層を形成しているため、脱臭剤が強固に担持されており、水溶性有機バインダーを使用したにも関わらず、除去性能を高く保持できるという利点を有する。 The deodorizing purification filter according to the present invention forms a layer containing a deodorant having an average particle diameter of 1.0 to 50 μm, an inorganic compound having an average aspect ratio of 10 to 500, and a water-soluble organic binder on the surface of the carrier. The deodorizing agent is firmly supported and has an advantage that the removal performance can be kept high despite the use of the water-soluble organic binder.
以下、本発明を詳細に説明する。
本発明における脱臭浄化フィルタは、担体表面に、少なくとも、平均粒子直径１．０〜５０μｍの脱臭剤、平均アスペクト比１０〜５００を有する無機化合物、および、水溶性有機バインダーからなる層が形成されていることが好ましい。なお、ここで言う平均アスペクト比とは、無機化合物の長辺の長さを短辺の長さで割った値のことである。
Hereinafter, the present invention will be described in detail.
In the deodorizing purification filter according to the present invention, a layer composed of at least a deodorizing agent having an average particle diameter of 1.0 to 50 μm, an inorganic compound having an average aspect ratio of 10 to 500, and a water-soluble organic binder is formed on the surface of the carrier. Preferably it is. The average aspect ratio referred to here is a value obtained by dividing the length of the long side of the inorganic compound by the length of the short side.
バインダーとして、水溶性有機バインダーを使用することにより、少量のバインダー添加量で脱臭剤を担体表面に強固に担持させることができ、また、平均アスペクト比１０〜５００を有する無機化合物を、担体表面に形成されている層内に含有させることにより、脱臭剤、無機化合物、水溶性有機バインダーからなる層が嵩高くなり、層内の空隙が増え、その結果、脱臭剤と有害ガス成分との接触確率が高くなり、除去性能を高く保持できることを本発明者は見出した。 By using a water-soluble organic binder as the binder, the deodorizer can be firmly supported on the surface of the carrier with a small amount of added binder, and an inorganic compound having an average aspect ratio of 10 to 500 is applied to the surface of the carrier. By including it in the formed layer, the layer composed of the deodorant, inorganic compound, and water-soluble organic binder becomes bulky, increasing the voids in the layer, and as a result, the probability of contact between the deodorant and harmful gas components The present inventor has found that the removal performance can be increased and the removal performance can be maintained high.
前記バインダーが水溶性有機バインダーでなければ、担体表面に脱臭剤を強固に担持するためには、バインダー添加量を多くしなければならず、その結果、脱臭剤が被覆されてしまい、除去性能を高く保持することができない。 If the binder is not a water-soluble organic binder, in order to firmly carry the deodorant on the surface of the carrier, the amount of the binder added must be increased. As a result, the deodorant is coated, and the removal performance is improved. Can't hold high.
また、無機化合物を含有しない場合、あるいは無機化合物の平均アスペクト比が１０より小さい、もしくは、５００より大きい場合は、担体表面に形成されている層の充填密度が高くなり、脱臭剤と有害ガス成分との接触が困難になり、除去性能を高く保持することができない。担体表面に形成されている層内には、一般的な難燃剤が含有されてもよい。例えば、メラミンシアヌレート、水酸化アルミ、リン酸アルミ等の難燃剤が挙げられる。 When the inorganic compound is not contained, or when the average aspect ratio of the inorganic compound is smaller than 10 or larger than 500, the packing density of the layer formed on the surface of the carrier is increased, and the deodorant and harmful gas component It becomes difficult to make contact with the water, and the removal performance cannot be kept high. A general flame retardant may be contained in the layer formed on the surface of the carrier. Examples thereof include flame retardants such as melamine cyanurate, aluminum hydroxide, and aluminum phosphate.
本発明における脱臭剤の平均粒子直径は１．０〜５０μｍであることが好ましい。より好ましくは、１．０〜３０μｍである。平均粒子直径が１．０μｍ未満であれば、脱臭剤が粉塵として舞いやすく、取り扱い性が悪く、５０μｍより大きければ、担体に強固に担持するのが困難になるからである。 The average particle diameter of the deodorizer in the present invention is preferably 1.0 to 50 μm. More preferably, it is 1.0-30 micrometers. This is because if the average particle diameter is less than 1.0 μm, the deodorizing agent tends to behave as dust and the handleability is poor, and if it is larger than 50 μm, it is difficult to firmly support it on the carrier.
本発明における無機化合物は短辺の長さの平均値、および、長辺の長さの平均値の平均が０．０５〜１００μｍであることが好ましい。短辺の長さの平均値、もしくは、長辺の長さの平均値が０．０５μｍより小さい場合は、無機化合物が粉塵として舞いやすく、取り扱い性が悪く、１００μｍより大きければ、担体に強固に担持するのが困難になるからである。 The inorganic compound in the present invention preferably has an average value of short side lengths and an average value of long side lengths of 0.05 to 100 μm. When the average value of the short side length or the average value of the long side length is smaller than 0.05 μm, the inorganic compound tends to behave as dust and is not easy to handle. This is because it becomes difficult to carry.
本発明における担体表面に形成されている層に含有される無機化合物の量は、担体表面に形成される層の固形分に対する重量比率が０．５〜３０重量％であることが好ましい。無機化合物の量が０．５重量％より少ない場合、または、３０重量％より多い場合は、担体表面に形成されている層に十分な空隙ができないため、除去性能を高く保持することができない。本発明における無機化合物としては、特に定めないが、シリカゾル、アルミナゾル、活性アルミナ、粘土鉱物（セピオライト等）が挙げられる。好ましくは、セピオライト等の粘土鉱物が好ましい。 In the present invention, the amount of the inorganic compound contained in the layer formed on the support surface is preferably 0.5 to 30% by weight with respect to the solid content of the layer formed on the support surface. When the amount of the inorganic compound is less than 0.5% by weight or more than 30% by weight, a sufficient gap cannot be formed in the layer formed on the surface of the carrier, so that the removal performance cannot be kept high. The inorganic compound in the present invention is not particularly defined, and examples thereof include silica sol, alumina sol, activated alumina, and clay mineral (such as sepiolite). A clay mineral such as sepiolite is preferable.
本発明における脱臭剤は少なくとも活性炭、または、酸化マンガンを含有することが好ましい。活性炭は、揮発性有機化合物等の有害ガス成分の吸着除去に優れており、酸化マンガンはオゾン等の有害ガス成分を分解除去する能力に優れているからである。それ以外の成分については、特に定めないが、例えば、二酸化チタン、有機系脱臭剤等の一般的な脱臭剤を含有することができる。 The deodorizer in the present invention preferably contains at least activated carbon or manganese oxide. This is because activated carbon is excellent in adsorbing and removing harmful gas components such as volatile organic compounds, and manganese oxide is excellent in the ability to decompose and remove harmful gas components such as ozone. Other components are not particularly defined, but for example, general deodorizers such as titanium dioxide and organic deodorizers can be contained.
本発明における担体としては、特に定めないが、本発明の脱臭浄化フィルタは電子機器内に設置されるため、安全性の観点から難燃、もしくは、不燃性の担体が好ましく、また、高強度、低圧力損失という特徴を有するハニカム担体が好ましい。例えば、アルミ製ハニカム担体、無機繊維紙製のハニカム担体等が使用できる。 The carrier in the present invention is not particularly defined, but since the deodorizing and purifying filter of the present invention is installed in an electronic device, a flame-retardant or non-flammable carrier is preferable from the viewpoint of safety, and high strength, A honeycomb carrier having the characteristics of low pressure loss is preferred. For example, an aluminum honeycomb carrier, an inorganic fiber paper honeycomb carrier, or the like can be used.
本発明における水溶性有機バインダーの平均分子量は２×１０４〜２×１０６であることが好ましい。より好ましくは、１×１０５〜２×１０６である。平均分子量が２×１０４〜２×１０６であれば、担体表面に脱臭剤、無機化合物を強固に担持することができることを本発明者は見出したからである。平均分子量が２×１０４未満であれば、担体表面に脱臭剤、無機化合物十分強固に担持するためには、バインダー添加量を多くしなければならならず、その結果、脱臭剤が水溶性有機バインダーにより被覆されてしまい、脱臭性能が低下するため好ましくない。また、平均分子量が２×１０６より大きければ、水性スラリーの粘度が高くなり、脱臭剤、無機化合物を均一に担持することができなくなり好ましくない。ここでいう平均分子量とは重量平均分子量のことを指す。重量平均分子量は、一般的に、ゲルパーミエーションクロマトグラフィー（ＧＰＣ）により測定することができる。 The average molecular weight of the water-soluble organic binder in the present invention is preferably 2 × 10 4 to 2 × 10 6 . More preferably, it is 1 × 10 5 to 2 × 10 6 . This is because the present inventors have found that when the average molecular weight is 2 × 10 4 to 2 × 10 6 , the deodorizer and the inorganic compound can be firmly supported on the surface of the carrier. If the average molecular weight is less than 2 × 10 4 , in order to carry the deodorant and inorganic compound sufficiently firmly on the surface of the carrier, it is necessary to increase the amount of binder added. As a result, the deodorizer is water-soluble organic. Since it will be coat | covered with a binder and deodorizing performance will fall, it is unpreferable. On the other hand, if the average molecular weight is larger than 2 × 10 6 , the viscosity of the aqueous slurry becomes high, and the deodorant and the inorganic compound cannot be uniformly supported, which is not preferable. The average molecular weight here refers to the weight average molecular weight. The weight average molecular weight can generally be measured by gel permeation chromatography (GPC).
本発明における水溶性有機バインダーは、分子鎖中に少なくとも複素環構造を含有することが好ましい。分子鎖中に少なくとも複素環構造を含有することにより、複素環構造の電子的な効果により、担体表面と水性スラリーとの親和性、および、脱臭剤、無機化合物と水溶性有機バインダーとの親和性が増し、担体表面に脱臭剤、無機化合物を強固に、かつ、均一に担持することができるからである。複素環構造がなければ、担体表面と水性スラリー、および、脱臭剤、無機化合物と水溶性有機バインダーとの親和性が低下するため、強固、かつ、均一に担持することが困難になるため好ましくない。複素環構造の環員数については特に定めないが、３〜６員環が好ましい。複素環構造に含有されるヘテロ原子については特に定めないが、酸素、窒素が好ましい。例えば、ポリビニルピロリドン、カルボキシメチルセルロース、メチルセルロース、アルギン酸ナトリウム、デキストリン等が挙げられる。 The water-soluble organic binder in the present invention preferably contains at least a heterocyclic structure in the molecular chain. By containing at least a heterocyclic structure in the molecular chain, due to the electronic effect of the heterocyclic structure, the affinity between the support surface and the aqueous slurry, and the affinity between the deodorizer, the inorganic compound and the water-soluble organic binder This is because the deodorizer and the inorganic compound can be firmly and uniformly supported on the surface of the carrier. Without a heterocyclic structure, the affinity between the support surface and the aqueous slurry, and the deodorizer, inorganic compound and water-soluble organic binder is lowered, so that it is difficult to support firmly and uniformly, which is not preferable. . The number of ring members in the heterocyclic structure is not particularly defined, but a 3-6 membered ring is preferable. The heteroatom contained in the heterocyclic structure is not particularly defined, but oxygen and nitrogen are preferred. For example, polyvinylpyrrolidone, carboxymethylcellulose, methylcellulose, sodium alginate, dextrin and the like can be mentioned.
本発明における担体表面に形成されている層に含有される水溶性有機バインダーの量は、担体表面に形成される層中の固形分に対して０．５〜１０重量％であることが好ましい。より好ましくは、０．５〜５重量％である。１０重量％より多いと脱臭剤が水溶性有機バインダーにより被覆され、脱臭剤の除去性能が低下してしまうため、好ましくない。また、０．５重量％より少ないと、担体表面に十分に脱臭剤、無機化合物を担持することができないため、好ましくない。 The amount of the water-soluble organic binder contained in the layer formed on the carrier surface in the present invention is preferably 0.5 to 10% by weight based on the solid content in the layer formed on the carrier surface. More preferably, it is 0.5 to 5% by weight. If it is more than 10% by weight, the deodorant is coated with a water-soluble organic binder, and the removal performance of the deodorant is lowered. On the other hand, when the amount is less than 0.5% by weight, it is not preferable because the deodorant and the inorganic compound cannot be sufficiently supported on the surface of the carrier.
本発明における脱臭浄化フィルタの製造方法については特に定めない。担体を、脱臭剤、無機化合物、および、水溶性有機バインダーを含む水性スラリーと接触させた後に乾燥するといった一般的な方法を用いることができる。前記水性スラリーの固形分比率は、１０〜５０％、好ましくは２５〜５０％である。固形分比率が１０％未満であると担体表面に脱臭剤、無機化合物が十分に担持されなくなるため好ましくない。また、固形分比率が５０％を越えると増粘して水性スラリーの流動性が低下して含浸できなくなるため好ましくない。乾燥する際の温度は、通常６０〜２００℃、好ましくは１００〜１５０℃である。乾燥温度が２００℃を越えると、水溶性有機バインダーが劣化するため好ましくない。また、乾燥温度が６０℃より低いと、乾燥時間が長くなるため、コストが高くなり好ましくない。 The manufacturing method of the deodorizing purification filter in the present invention is not particularly defined. A general method of drying after contacting the carrier with an aqueous slurry containing a deodorant, an inorganic compound, and a water-soluble organic binder can be used. The solid content ratio of the aqueous slurry is 10 to 50%, preferably 25 to 50%. A solid content ratio of less than 10% is not preferable because the deodorizer and inorganic compound are not sufficiently supported on the surface of the carrier. On the other hand, if the solid content ratio exceeds 50%, the viscosity is increased, the fluidity of the aqueous slurry is lowered, and impregnation is not possible. The temperature at the time of drying is 60-200 degreeC normally, Preferably it is 100-150 degreeC. When the drying temperature exceeds 200 ° C., the water-soluble organic binder deteriorates, which is not preferable. On the other hand, if the drying temperature is lower than 60 ° C., the drying time becomes longer, which increases the cost and is not preferable.
本発明におけるフィルタは、コピー機、プリンター、多機能ＯＡ機、コンピュータ、プロジェクター、ＰＯＤ印刷機等の電子機器の排出ガス中に含まれる有害ガス成分を除去するための脱臭浄化フィルタ等に使用できる。 The filter according to the present invention can be used as a deodorizing and purifying filter for removing harmful gas components contained in the exhaust gas of electronic devices such as copiers, printers, multi-function OA machines, computers, projectors, and POD printers.
以下、実施例によって本発明の作用効果をより具体的に示す。下記実施例は本発明方法を限定する性質のものではなく、前・後記の趣旨に沿って設計変更することはいずれも本発明の技術的範囲に含まれるものである。 Hereinafter, the effects of the present invention will be described more specifically by way of examples. The following examples are not intended to limit the method of the present invention, and any design changes in accordance with the gist of the preceding and following descriptions are included in the technical scope of the present invention.
［オゾン除去性能の測定方法］
６０ｍｍφのガラス製カラムにハニカムサンプル（６０ｍｍφ、厚み２０ｍｍ）をセットし、そのカラム中にオゾン１ｐｐｍを含む温度２５℃、湿度５０ＲＨ％の空気を２ｍ／ｓの速度で通過させた。５分後にハニカムサンプル通過前後のオゾン濃度をオゾン計（ダシビ１５００）にて測定し、その通過前後の濃度変化からオゾンの除去率［％］を算出した。
[Measurement method of ozone removal performance]
A honeycomb sample (60 mmφ, thickness 20 mm) was set on a 60 mmφ glass column, and air having a temperature of 25 ° C. and a humidity of 50 RH% containing 1 ppm of ozone was passed through the column at a speed of 2 m / s. After 5 minutes, the ozone concentration before and after passing through the honeycomb sample was measured with an ozone meter (Dashibi 1500), and the ozone removal rate [%] was calculated from the change in concentration before and after the passage.
［平均分子量の測定方法］
ＧＰＣ装置（ＨＬＣ−８１２０ＧＰＣ、東ソー株式会社製）、カラム（ＴＳＫｇｅｌシリーズ、東ソー株式会社製）を使用し、有機バインダーの重量平均分子量を求めた。
[Measurement method of average molecular weight]
The weight average molecular weight of the organic binder was determined using a GPC device (HLC-8120GPC, manufactured by Tosoh Corporation) and a column (TSKgel series, manufactured by Tosoh Corporation).
［平均粒子直径の測定方法］
走査型電子顕微鏡（日立製作所製、Ｓ−３５００）を使用して、粒子サンプルの直径を１００点測定し、それを相加平均して、粒子サンプルの平均粒径を求めた。
[Measurement method of average particle diameter]
Using a scanning electron microscope (S-3500, manufactured by Hitachi, Ltd.), the diameter of the particle sample was measured at 100 points, and this was arithmetically averaged to obtain the average particle diameter of the particle sample.
［短辺の長さの平均値、および、長辺の長さの平均値、平均アスペクト比の測定方法］
走査型電子顕微鏡（日立製作所製、Ｓ−３５００）を使用して、無機化合物１００点分の短辺の長さ、長辺の長さを測定した。１００点分の短辺の長さを相加平均して、無機化合物の短辺の長さの平均値を求めた。１００点分の長辺の長さを相加平均して、無機化合物の長辺の長さの平均値を求めた。また、１００点分の長辺の長さ／短辺の長さを算出し、相加平均して、平均アスペクト比を求めた。
[Measurement method of average value of short side length, average value of long side length, average aspect ratio]
Using a scanning electron microscope (S-3500, manufactured by Hitachi, Ltd.), the length of the short side and the length of the long side for 100 points of the inorganic compound were measured. The average of the short side length of an inorganic compound was calculated by averaging the short side lengths of 100 points. The average of the lengths of the long sides of the inorganic compound was determined by arithmetically averaging the lengths of the long sides for 100 points. Also, the length of the long side / the length of the short side for 100 points was calculated, and an arithmetic average was obtained to obtain an average aspect ratio.
（実施例１）
厚さ０．０３ｍｍのアルミ箔を用いてハニカム（５００セル／ｉｎｃｈ２）を作製した。活性炭１９０ｇ（乾燥重量９５ｇ、平均粒子直径１５μｍ）、セピオライト３ｇ（乾燥重量３ｇ、繊維径（短辺の長さの平均値）０．２μｍ、繊維長（長辺の長さの平均値）５０μｍ、平均アスペクト比２５０）、ポリビニルピロリドン２．１ｇ（乾燥重量２ｇ、平均分子量４０，０００）を１４０ｇのイオン交換水中に添加し、終夜撹拌し、十分に分散させることにより、水性スラリーを調整した。引き続いて、前記ハニカムを前記水性スラリーに浸漬し、水性スラリーがハニカム内部に十分に浸透したことを確認してから、ハニカムを引き上げた。エアーブローでハニカムから余分なスラリーを吹き落とした後、乾燥機内（１２０℃）で３時間乾燥させた。ハニカムサンプルの総添着量は５８ｇ／Ｌであった。
Example 1
A honeycomb (500 cells / inch 2 ) was manufactured using an aluminum foil having a thickness of 0.03 mm. Activated carbon 190 g (dry weight 95 g, average particle diameter 15 μm), sepiolite 3 g (dry weight 3 g, fiber diameter (average value of short side length) 0.2 μm, fiber length (average value of long side length) 50 μm, An aqueous slurry was prepared by adding 2.1 g of polyvinylpyrrolidone (average aspect ratio 250) and polyvinylpyrrolidone 2.1 g (dry weight 2 g, average molecular weight 40,000) to 140 g of ion-exchanged water, stirring overnight and thoroughly dispersing. Subsequently, the honeycomb was dipped in the aqueous slurry, and after confirming that the aqueous slurry had sufficiently penetrated into the honeycomb, the honeycomb was pulled up. After excess slurry was blown off from the honeycomb by air blow, the slurry was dried in a dryer (120 ° C.) for 3 hours. The total amount of attachment of the honeycomb sample was 58 g / L.
（実施例２）
厚さ０．０５ｍｍの無機繊維紙を用いてハニカム（５００セル／ｉｎｃｈ２）を作製した。酸化マンガン７３ｇ（乾燥重量７３ｇ、平均粒子直径５μｍ）、セピオライト５ｇ（乾燥重量５ｇ、繊維径（短辺の長さの平均値）０．２μｍ、繊維長（長辺の長さの平均値）３０μｍ、平均アスペクト比１５０）、水酸化アルミ２０ｇ（乾燥重量２０ｇ）、ポリビニルピロリドン２．１ｇ（乾燥重量２ｇ、平均分子量１，２００，０００）を２３５ｇのイオン交換水中に添加し、終夜撹拌し、十分に分散させることにより、水性スラリーを調整した。引き続いて、前記ハニカムを前記水性スラリーに浸漬し、水性スラリーがハニカム内部に十分に浸透したことを確認してから、ハニカムを引き上げた。エアーブローでハニカムから余分なスラリーを吹き落とした後、乾燥機内（１２０℃）で３時間乾燥させた。ハニカムサンプルの総添着量は７８ｇ／Ｌであった。
(Example 2)
A honeycomb (500 cells / inch 2 ) was prepared using inorganic fiber paper having a thickness of 0.05 mm. Manganese oxide 73 g (dry weight 73 g, average particle diameter 5 μm), sepiolite 5 g (dry weight 5 g, fiber diameter (average value of short side length) 0.2 μm, fiber length (average value of long side length) 30 μm , Average aspect ratio 150), aluminum hydroxide 20 g (dry weight 20 g), polyvinylpyrrolidone 2.1 g (dry weight 2 g, average molecular weight 1,200,000) was added to 235 g of ion-exchanged water, and stirred overnight. An aqueous slurry was prepared by dispersing in an aqueous solution. Subsequently, the honeycomb was dipped in the aqueous slurry, and after confirming that the aqueous slurry had sufficiently penetrated into the honeycomb, the honeycomb was pulled up. After excess slurry was blown off from the honeycomb by air blow, the slurry was dried in a dryer (120 ° C.) for 3 hours. The total amount of attachment of the honeycomb sample was 78 g / L.
（実施例３）
厚さ０．０５ｍｍの無機繊維紙を用いてハニカム（５００セル／ｉｎｃｈ２）を作製した。活性炭４０ｇ（乾燥重量２０ｇ、平均粒子直径１５μｍ）、酸化マンガン５０ｇ（乾燥重量５０ｇ、平均粒子直径５μｍ）、水酸化アルミ２０ｇ（乾燥重量２０ｇ）、セピオライト８ｇ（乾燥重量８ｇ、繊維径（短辺の長さの平均値）０．１μｍ、繊維長（長辺の長さの平均値）５μｍ、アスペクト比５０）、アルギン酸ソーダ２．３５ｇ（乾燥重量２ｇ、平均分子量１５０，０００）を２１５ｇのイオン交換水中に添加し、終夜撹拌し、十分に分散させることにより、水性スラリーを調整した。引き続いて、前記ハニカムを前記水性スラリーに浸漬し、水性スラリーがハニカム内部に十分に浸透したことを確認してから、ハニカムを引き上げた。エアーブローでハニカムから余分なスラリーを吹き落とした後、乾燥機内（１２０℃）で３時間乾燥させた。ハニカムサンプルの総添着量は８２ｇ／Ｌであった。
(Example 3)
A honeycomb (500 cells / inch 2 ) was prepared using inorganic fiber paper having a thickness of 0.05 mm. Activated carbon 40 g (dry weight 20 g, average particle diameter 15 μm), manganese oxide 50 g (dry weight 50 g, average particle diameter 5 μm), aluminum hydroxide 20 g (dry weight 20 g), sepiolite 8 g (dry weight 8 g, fiber diameter (short side) Average length) 0.1 μm, fiber length (average length of long side) 5 μm, aspect ratio 50), sodium alginate 2.35 g (dry weight 2 g, average molecular weight 150,000) 215 g of ion exchange The aqueous slurry was prepared by adding in water, stirring overnight and fully dispersing. Subsequently, the honeycomb was dipped in the aqueous slurry, and after confirming that the aqueous slurry had sufficiently penetrated into the honeycomb, the honeycomb was pulled up. After excess slurry was blown off from the honeycomb by air blow, the slurry was dried in a dryer (120 ° C.) for 3 hours. The total amount of attachment of the honeycomb sample was 82 g / L.
（実施例４）
厚さ０．０５ｍｍの無機繊維紙を用いてハニカム（５００セル／ｉｎｃｈ２）を作製した。活性炭４０ｇ（乾燥重量２０ｇ、平均粒子直径１５μｍ）、酸化マンガン５０ｇ（乾燥重量５０ｇ、平均粒子直径５μｍ）、水酸化アルミ８ｇ（乾燥重量８ｇ）、セピオライト２０ｇ（乾燥重量２０ｇ、繊維径（短辺の長さの平均値）０．２μｍ、繊維長（長辺の長さの平均値）５μｍ、アスペクト比２５）、アルギン酸ソーダ２．３５ｇ（乾燥重量２ｇ、平均分子量１５０，０００）を２１５ｇのイオン交換水中に添加し、終夜撹拌し、十分に分散させることにより、水性スラリーを調整した。引き続いて、前記ハニカムを前記水性スラリーに浸漬し、水性スラリーがハニカム内部に十分に浸透したことを確認してから、ハニカムを引き上げた。エアーブローでハニカムから余分なスラリーを吹き落とした後、乾燥機内（１２０℃）で３時間乾燥させた。ハニカムサンプルの活性炭添着量は８０ｇ／Ｌであった。
Example 4
A honeycomb (500 cells / inch 2 ) was prepared using inorganic fiber paper having a thickness of 0.05 mm. Activated carbon 40 g (dry weight 20 g, average particle diameter 15 μm), manganese oxide 50 g (dry weight 50 g, average particle diameter 5 μm), aluminum hydroxide 8 g (dry weight 8 g), sepiolite 20 g (dry weight 20 g, fiber diameter (short side) 215 g of ion exchange (average length) 0.2 μm, fiber length (average length of long side) 5 μm, aspect ratio 25), sodium alginate 2.35 g (dry weight 2 g, average molecular weight 150,000) The aqueous slurry was prepared by adding in water, stirring overnight and fully dispersing. Subsequently, the honeycomb was dipped in the aqueous slurry, and after confirming that the aqueous slurry had sufficiently penetrated into the honeycomb, the honeycomb was pulled up. After excess slurry was blown off from the honeycomb by air blow, the slurry was dried in a dryer (120 ° C.) for 3 hours. The amount of activated carbon attached to the honeycomb sample was 80 g / L.
（比較例１）
厚さ０．０３ｍｍのアルミ箔を用いてハニカム（５００セル／ｉｎｃｈ２）を作製した。活性炭１９０ｇ（乾燥重量９５ｇ、平均粒子直径０．５μｍ）、セピオライト３ｇ（乾燥重量３ｇ、繊維径（短辺の長さの平均値）０．２μｍ、繊維長（長辺の長さの平均値）５０μｍ、アスペクト比２５０）、ポリビニルピロリドン２．１ｇ（乾燥重量２ｇ、平均分子量４０，０００）を１４０ｇのイオン交換水中に添加し、終夜撹拌し、十分に分散させることにより、水性スラリーを調整した。引き続いて、前記ハニカムを前記水性スラリーに浸漬し、水性スラリーがハニカム内部に十分に浸透したことを確認してから、ハニカムを引き上げた。エアーブローでハニカムから余分なスラリーを吹き落とした後、乾燥機内（１２０℃）で３時間乾燥させた。ハニカムサンプルの総添着量は６２ｇ／Ｌであった。
(Comparative Example 1)
A honeycomb (500 cells / inch 2 ) was manufactured using an aluminum foil having a thickness of 0.03 mm. 190 g of activated carbon (dry weight 95 g, average particle diameter 0.5 μm), sepiolite 3 g (dry weight 3 g, fiber diameter (average value of short side length) 0.2 μm, fiber length (average value of long side length) 50 μm, aspect ratio 250), polyvinylpyrrolidone 2.1 g (dry weight 2 g, average molecular weight 40,000) was added to 140 g of ion-exchanged water, stirred overnight, and fully dispersed to prepare an aqueous slurry. Subsequently, the honeycomb was dipped in the aqueous slurry, and after confirming that the aqueous slurry had sufficiently penetrated into the honeycomb, the honeycomb was pulled up. After excess slurry was blown off from the honeycomb by air blow, the slurry was dried in a dryer (120 ° C.) for 3 hours. The total amount of attachment of the honeycomb sample was 62 g / L.
（比較例２）
厚さ０．０３ｍｍのアルミ箔を用いてハニカム（５００セル／ｉｎｃｈ２）を作製した。活性炭１９０ｇ（乾燥重量９５ｇ、平均粒子直径１００μｍ）、セピオライト３ｇ（乾燥重量３ｇ、繊維径（短辺の長さの平均値）０．２μｍ、繊維長（長辺の長さの平均値）５０μｍ、アスペクト比２５０）、ポリビニルピロリドン２．１ｇ（乾燥重量２ｇ、平均分子量４０，０００）を１４０ｇのイオン交換水中に添加し、終夜撹拌し、十分に分散させることにより、水性スラリーを調整した。引き続いて、前記ハニカムを前記水性スラリーに浸漬し、水性スラリーがハニカム内部に十分に浸透したことを確認してから、ハニカムを引き上げた。エアーブローでハニカムから余分なスラリーを吹き落とした後、乾燥機内（１２０℃）で３時間乾燥させた。ハニカムサンプルの総添着量は４８ｇ／Ｌであった。
(Comparative Example 2)
A honeycomb (500 cells / inch 2 ) was manufactured using an aluminum foil having a thickness of 0.03 mm. 190 g of activated carbon (dry weight 95 g, average particle diameter 100 μm), sepiolite 3 g (dry weight 3 g, fiber diameter (average value of short side length) 0.2 μm, fiber length (average value of long side length) 50 μm, An aqueous slurry was prepared by adding 2.1 g (dry weight 2 g, average molecular weight 40,000) of polyvinylpyrrolidone (aspect ratio 250) and 140 g of ion-exchanged water, stirring overnight, and thoroughly dispersing. Subsequently, the honeycomb was dipped in the aqueous slurry, and after confirming that the aqueous slurry had sufficiently penetrated into the honeycomb, the honeycomb was pulled up. After excess slurry was blown off from the honeycomb by air blow, the slurry was dried in a dryer (120 ° C.) for 3 hours. The total amount of attachment of the honeycomb sample was 48 g / L.
（比較例３）
厚さ０．０５ｍｍの無機繊維紙を用いてハニカム（５００セル／ｉｎｃｈ２）を作製した。活性炭４０ｇ（乾燥重量２０ｇ、平均粒子直径１５μｍ）、酸化マンガン５０ｇ（乾燥重量５０ｇ、平均粒子直径５μｍ）、リン酸アルミ２８ｇ（乾燥重量２８ｇ、短辺１０μｍ、長辺２０μｍ、アスペクト比２）、アルギン酸ソーダ２．３５ｇ（乾燥重量２ｇ、平均分子量１５０，０００）を２１５ｇのイオン交換水中に添加し、終夜撹拌し、十分に分散させることにより、水性スラリーを調整した。引き続いて、前記ハニカムを前記水性スラリーに浸漬し、水性スラリーがハニカム内部に十分に浸透したことを確認してから、ハニカムを引き上げた。エアーブローでハニカムから余分なスラリーを吹き落とした後、乾燥機内（１２０℃）で３時間乾燥させた。ハニカムサンプルの総添着量は８５ｇ／Ｌであった。
(Comparative Example 3)
A honeycomb (500 cells / inch 2 ) was prepared using inorganic fiber paper having a thickness of 0.05 mm. Activated carbon 40 g (dry weight 20 g, average particle diameter 15 μm), manganese oxide 50 g (dry weight 50 g, average particle diameter 5 μm), aluminum phosphate 28 g (dry weight 28 g, short side 10 μm, long side 20 μm, aspect ratio 2), alginic acid An aqueous slurry was prepared by adding 2.35 g of soda (dry weight 2 g, average molecular weight 150,000) to 215 g of ion-exchanged water, stirring overnight, and thoroughly dispersing. Subsequently, the honeycomb was dipped in the aqueous slurry, and after confirming that the aqueous slurry had sufficiently penetrated into the honeycomb, the honeycomb was pulled up. After excess slurry was blown off from the honeycomb by air blow, the slurry was dried in a dryer (120 ° C.) for 3 hours. The total amount of attachment of the honeycomb sample was 85 g / L.
（比較例４）
厚さ０．０５ｍｍの無機繊維紙を用いてハニカム（５００セル／ｉｎｃｈ２）を作製した。活性炭４０ｇ（乾燥重量２０ｇ、平均粒子直径１５μｍ）、酸化マンガン５０ｇ（乾燥重量５０ｇ、平均粒子直径５μｍ）、水酸化アルミ２０ｇ（乾燥重量２０ｇ）、セピオライト８ｇ（乾燥重量８ｇ、繊維径（短辺の長さの平均値）０．１μｍ、繊維長（長辺の長さの平均値）１５０μｍ、アスペクト比１５００）、アルギン酸ソーダ２．３５ｇ（乾燥重量２ｇ、平均分子量１５０，０００）を２１５ｇのイオン交換水中に添加し、終夜撹拌し、十分に分散させることにより、水性スラリーを調整した。引き続いて、前記ハニカムを前記水性スラリーに浸漬し、水性スラリーがハニカム内部に十分に浸透したことを確認してから、ハニカムを引き上げた。エアーブローでハニカムから余分なスラリーを吹き落とした後、乾燥機内（１２０℃）で３時間乾燥させた。ハニカムサンプルの総添着量は７６ｇ／Ｌであった。
(Comparative Example 4)
A honeycomb (500 cells / inch 2 ) was prepared using inorganic fiber paper having a thickness of 0.05 mm. Activated carbon 40 g (dry weight 20 g, average particle diameter 15 μm), manganese oxide 50 g (dry weight 50 g, average particle diameter 5 μm), aluminum hydroxide 20 g (dry weight 20 g), sepiolite 8 g (dry weight 8 g, fiber diameter (short side) (Average length) 0.1 μm, fiber length (average length of long side) 150 μm, aspect ratio 1500), sodium alginate 2.35 g (dry weight 2 g, average molecular weight 150,000) 215 g of ion exchange The aqueous slurry was prepared by adding in water, stirring overnight and fully dispersing. Subsequently, the honeycomb was dipped in the aqueous slurry, and after confirming that the aqueous slurry had sufficiently penetrated into the honeycomb, the honeycomb was pulled up. After excess slurry was blown off from the honeycomb by air blow, the slurry was dried in a dryer (120 ° C.) for 3 hours. The total amount of attachment of the honeycomb sample was 76 g / L.
（比較例５）
厚さ０．０５ｍｍの無機繊維紙を用いてハニカム（５００セル／ｉｎｃｈ２）を作製した。活性炭４０ｇ（乾燥重量２０ｇ、平均粒子直径１５μｍ）、酸化マンガン５０ｇ（乾燥重量５０ｇ、平均粒子直径５μｍ）、水酸化アルミ２ｇ（乾燥重量２ｇ）、セピオライト８ｇ（乾燥重量８ｇ、繊維径（短辺の長さの平均値）０．１μｍ、繊維長（長辺の長さの平均値）５μｍ、アスペクト比５０）、ポリ酢酸ビニルエマルジョン６７ｇ（乾燥重量２０ｇ、平均分子量１０，０００）を１５５ｇのイオン交換水中に添加し、終夜撹拌し、十分に分散させることにより、水性スラリーを調整した。引き続いて、前記ハニカムを前記水性スラリーに浸漬し、水性スラリーがハニカム内部に十分に浸透したことを確認してから、ハニカムを引き上げた。エアーブローでハニカムから余分なスラリーを吹き落とした後、乾燥機内（１２０℃）で３時間乾燥させた。ハニカムサンプルの総添着量は８２ｇ／Ｌであった。
(Comparative Example 5)
A honeycomb (500 cells / inch 2 ) was prepared using inorganic fiber paper having a thickness of 0.05 mm. Activated carbon 40 g (dry weight 20 g, average particle diameter 15 μm), manganese oxide 50 g (dry weight 50 g, average particle diameter 5 μm), aluminum hydroxide 2 g (dry weight 2 g), sepiolite 8 g (dry weight 8 g, fiber diameter (short side) 155 g of ion exchange (average length) 0.1 μm, fiber length (average length of long side) 5 μm, aspect ratio 50), 67 g of polyvinyl acetate emulsion (dry weight 20 g, average molecular weight 10,000) The aqueous slurry was prepared by adding in water, stirring overnight and fully dispersing. Subsequently, the honeycomb was dipped in the aqueous slurry, and after confirming that the aqueous slurry had sufficiently penetrated into the honeycomb, the honeycomb was pulled up. After excess slurry was blown off from the honeycomb by air blow, the slurry was dried in a dryer (120 ° C.) for 3 hours. The total amount of attachment of the honeycomb sample was 82 g / L.
実施例１〜４、比較例１〜５のハニカムサンプルを用いてオゾン除去性能測定を実施した。結果を表１に示す。表１より明らかなように、本発明の実施例１〜４は、脱臭剤の平均粒径が小さい場合（比較例１）、および、脱臭剤の平均粒径が大きい場合（比較例２）と比較して、取り扱い性、脱落の面で優れている。また、無機化合物の平均アスペクト比が小さい場合（比較例３）、無機化合物の平均アスペクト比が大きい場合（比較例４）、バインダーが非水溶性で、分子鎖内に複素環構造を有していない有機バインダーの場合（比較例５）と実施例１〜４を比較して、オゾン除去性能に大きな差が見られる。 Ozone removal performance was measured using the honeycomb samples of Examples 1 to 4 and Comparative Examples 1 to 5. The results are shown in Table 1. As is clear from Table 1, Examples 1 to 4 of the present invention have a case where the average particle size of the deodorizer is small (Comparative Example 1) and a case where the average particle size of the deodorizer is large (Comparative Example 2). In comparison, it is excellent in terms of handleability and dropout. Further, when the average aspect ratio of the inorganic compound is small (Comparative Example 3), when the average aspect ratio of the inorganic compound is large (Comparative Example 4), the binder is water-insoluble and has a heterocyclic structure in the molecular chain. When the organic binder is not used (Comparative Example 5) and Examples 1 to 4 are compared, there is a large difference in ozone removal performance.
本発明における脱臭浄化フィルタは、担体表面に無機粉体が強固に担持されており、かつ、高性能であり、コピー機、プリンター、多機能ＯＡ機、コンピュータ、プロジェクター、ＰＯＤ印刷機等の電子機器の排出ガス中に含まれる有害ガス成分を除去するための脱臭浄化フィルタ、冷蔵庫やトイレ脱臭機などに用いられる脱臭フィルタ等に使用できる。
The deodorizing and purifying filter according to the present invention has inorganic powder firmly supported on the surface of the carrier, and has high performance. Electronic devices such as copiers, printers, multi-function OA machines, computers, projectors, and POD printing machines Can be used for deodorizing and purifying filters for removing harmful gas components contained in the exhaust gas, deodorizing filters for use in refrigerators and toilet deodorizers, and the like.
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