JP2008188251A - Aldehyde deodorizing filter and method for producing the same - Google Patents
Aldehyde deodorizing filter and method for producing the same Download PDFInfo
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Abstract
【課題】本発明の課題は、活性炭と共にヒドラジン誘導体をフィルターに担持したとしても、長期にわたってヒドラジン誘導体の消臭性能が低下することのない消臭フィルターを提供するものである。
【解決手段】活性炭混抄紙からなる消臭フィルター材を、正の電荷をもつポリマー溶液に浸漬処理した後、ヒドラジン誘導体溶液に浸漬処理しヒドラジン誘導体を担持させることにより、長期間にわたってタバコ臭に大きな消臭効果の発揮できる消臭フィルターを提供する。
【選択図】なしAn object of the present invention is to provide a deodorizing filter in which the deodorizing performance of a hydrazine derivative does not deteriorate over a long period of time even when a hydrazine derivative is supported on a filter together with activated carbon.
SOLUTION: A deodorizing filter material made of activated carbon mixed paper is immersed in a polymer solution having a positive charge and then immersed in a hydrazine derivative solution to carry a hydrazine derivative. To provide a deodorizing filter capable of exerting a deodorizing effect.
[Selection figure] None
Description
本発明は、家庭用または業務用のエアコン、空気清浄機、あるいは自動車などにおける車室内のいやな臭を取り除くフィルター材等として使用し、特にタバコ臭に多く含まれるアルデヒド類を効率的に浄化するフィルターに関する技術である。 INDUSTRIAL APPLICABILITY The present invention is used as an air conditioner for home or business use, an air purifier, or a filter material that removes annoying odors in the interior of a car, etc., and particularly efficiently purifies aldehydes that are often contained in tobacco odors. This is a technology related to filters.
消臭フィルターは、様々な用途に利用されており、その消臭方法は大きく分類して、活性炭やゼオライト等の吸着剤を利用した吸着タイプと、オゾンや光触媒、金属フタロシアニン錯体等のように悪臭物質を分解除去する触媒タイプ、あるいはこの吸着タイプと触媒タイプを併用した併用タイプに分けられる。これらのうち最近では、併用タイプが多くなっており、活性炭の優れた吸着力で悪臭ガスを即効的に捕らえ、捕らえたガスを触媒タイプで分解するものが多く提案されている。 Deodorizing filters are used in various applications, and their deodorizing methods are roughly classified into adsorption types that use adsorbents such as activated carbon and zeolite, and bad odors such as ozone, photocatalysts, and metal phthalocyanine complexes. It is divided into a catalyst type that decomposes and removes substances, or a combined type that uses this adsorption type and catalyst type together. Of these, recently, the combined use type has increased, and many have been proposed that quickly capture malodorous gas with the excellent adsorption power of activated carbon and decompose the captured gas into a catalyst type.
特許文献１においては、合成繊維の不織布からなるフィルター材に、合成樹脂バインダーを介してポリアミン化合物、ヒドラジド化合物から選ばれた少なくとも１種類の消臭性有機化合物及び消臭性無機化合物とが固着されている脱臭フィルター材が開示されている。悪臭成分中のアンモニア、硫化水素や、タバコ臭に多く含まれるアルデヒド類、酢酸などの悪臭に対して優れた消臭性を有するものとして記載されている。 In Patent Document 1, at least one deodorant organic compound and deodorant inorganic compound selected from a polyamine compound and a hydrazide compound are fixed to a filter material made of a synthetic fiber nonwoven fabric through a synthetic resin binder. A deodorizing filter material is disclosed. It is described as having excellent deodorizing properties against bad odors such as ammonia, hydrogen sulfide, bad odor components such as aldehydes and acetic acid contained in tobacco odor.
また、特許文献２において、出願人は、無機アミン化合物と、水不溶性ヒドラジン誘導体と、活性炭とを含む混抄紙をハニカム形状に加工し、アンモニア、アセトアルデヒド、酢酸等の悪臭に優れた吸着消臭効果を発揮することができる消臭フィルターを提案している。 Further, in Patent Document 2, the applicant processed a mixed paper containing an inorganic amine compound, a water-insoluble hydrazine derivative, and activated carbon into a honeycomb shape, and had an adsorption and deodorizing effect excellent in bad odors such as ammonia, acetaldehyde, and acetic acid. We have proposed a deodorizing filter that can exert the effect.
これらの従来技術は、いずれも悪臭ガスを脱臭するもので、各種ガスを効率的に脱臭する方法として有用な方法である。なかでも、ヒドラジン誘導体は、アルデヒド類を化学吸着するものとしてよく知られているが、特許文献２のように、活性炭と共にフィルターに担持すると、当初は良好な消臭性能を発揮するものの、使用しないまま一ヶ月間放置するとヒドラジン誘導体の消臭性能が極端に低下し、アルデヒド類の消臭能のないものに変化してしまっていることがわかってきた。本発明の課題は、活性炭と共にヒドラジン誘導体をフィルターに担持したとしても、長期にわたってヒドラジン誘導体の消臭性能が低下することのない、特に代表的な悪臭であるタバコ臭について、さらに強力に消臭効果と即効性を発揮し、耐久性のある消臭フィルターを提供することである。 All of these conventional techniques deodorize malodorous gases and are useful methods for efficiently deodorizing various gases. Among them, hydrazine derivatives are well known as those that chemisorb aldehydes. However, as described in Patent Document 2, when they are supported on a filter together with activated carbon, they initially exhibit good deodorizing performance but are not used. It has been found that if the hydrazine derivative is left as it is for one month, the deodorizing performance of the hydrazine derivative is extremely lowered, and the hydrazine derivative is changed to one having no deodorizing ability of aldehydes. The problem of the present invention is that even if the hydrazine derivative is supported on the filter together with the activated carbon, the deodorizing performance of the hydrazine derivative is not lowered over a long period of time, and particularly the cigarette odor, which is a typical malodor, has a stronger deodorizing effect. It is to provide a deodorant filter that exhibits immediate effect and is durable.
本発明は悪臭の内でも特にタバコ臭について、さらに大きな消臭効果と即効性と耐久性のある消臭フィルターを提供するために、以下の手段を提供する。 The present invention provides the following means in order to provide a deodorizing filter having a greater deodorizing effect, immediate effect, and durability, particularly with respect to tobacco odor among bad odors.
［１］活性炭混抄紙からなる消臭フィルター材を、正の電荷をもつポリマー溶液に浸漬処理した後、ヒドラジン誘導体溶液に浸漬処理しヒドラジン誘導体を担持させたことを特徴とする消臭フィルターの製造方法。 [1] Production of a deodorizing filter characterized in that a deodorizing filter material made of activated carbon mixed paper is immersed in a polymer solution having a positive charge and then immersed in a hydrazine derivative solution to carry the hydrazine derivative. Method.
［２］前記正の電荷をもつポリマー溶液が、ポリアリルアミン、ポリピロール、ポリアニリン、ポリパラフェニレン、ポリパラフェニレンビニレン、ポリエチルイミンから選ばれるポリマー水溶液であることを特徴とする前項１に記載の消臭フィルターの製造方法。 [2] The consumption according to item 1 above, wherein the polymer solution having a positive charge is an aqueous polymer solution selected from polyallylamine, polypyrrole, polyaniline, polyparaphenylene, polyparaphenylenevinylene, and polyethylimine. Manufacturing method of odor filter.
［３］前記ヒドラジン誘導体溶液が、セミカルバジド類、ヒドラジド類、ヒドラジン類から選ばれる１種または複数のヒドラジン誘導体の水溶液であることを特徴とする前項１又は２に記載の消臭フィルターの製造方法。 [3] The method for producing a deodorizing filter according to the above item 1 or 2, wherein the hydrazine derivative solution is an aqueous solution of one or more hydrazine derivatives selected from semicarbazides, hydrazides, and hydrazines.
［４］前項１〜３のいずれか１項の製造方法で作られた消臭フィルターにおいて、消臭フィルターに対し活性炭が４５〜７５質量％、正の電荷をもつポリマーが０．０１〜５質量％、ヒドラジン誘導体が０．５〜２０質量％含まれることを特徴とする消臭フィルター。 [4] In the deodorizing filter made by the manufacturing method according to any one of items 1 to 3, activated carbon is 45 to 75% by mass, and a positively charged polymer is 0.01 to 5% by mass with respect to the deodorizing filter. %, A hydrazine derivative is contained in an amount of 0.5 to 20% by mass.
［１］の発明では、活性炭混抄紙からなる消臭フィルター材を、正の電荷をもつポリマー溶液に浸漬処理した後、ヒドラジン誘導体溶液に浸漬処理しヒドラジン誘導体を担持させているので、活性炭とヒドラジン誘導体の間に正の電荷をもつポリマー層が形成され、直接活性炭とヒドラジン誘導体とが接することが防止され、ヒドラジン誘導体の消臭性能が低下することなく、活性炭とヒドラジン誘導体の消臭効果が最大限に効果を発揮し、アセトアルデヒド、酢酸等の悪臭に優れた吸着消臭効果を発揮することができる消臭フィルターの製造方法となる。特に、タバコ臭の代表的ガスであるアセトアルデヒドは、活性炭には吸着されにくいが、ヒドラジン誘導体には化学吸着する性質があるので、アセトアルデヒド臭を再放出することもなく、耐久性の高い消臭性能を発揮することができる。また、活性炭はアルデヒド類には有効ではないが、その他の多くのガスには有効で、例えば、酢酸、一酸化炭素、トルエン等に優れた吸着性能を発揮する。 In the invention of [1], the deodorizing filter material made of activated carbon mixed paper is immersed in a polymer solution having a positive charge and then immersed in a hydrazine derivative solution to carry the hydrazine derivative. A polymer layer having a positive charge is formed between the derivatives, preventing direct contact between the activated carbon and the hydrazine derivative. The deodorizing effect of the activated carbon and the hydrazine derivative is maximized without deteriorating the deodorizing performance of the hydrazine derivative. This is a method for producing a deodorizing filter that exhibits its effect to the limit and can exhibit an adsorption deodorizing effect excellent in malodor such as acetaldehyde and acetic acid. In particular, acetaldehyde, which is a typical tobacco odor gas, is difficult to be adsorbed by activated carbon, but hydrazine derivatives are chemically adsorbed, so they do not re-release the acetaldehyde odor and have high durability. Can be demonstrated. Activated carbon is not effective for aldehydes, but is effective for many other gases, and exhibits excellent adsorption performance for, for example, acetic acid, carbon monoxide, toluene, and the like.
［２］の発明では、前記正の電荷をもつポリマー溶液が、ポリアリルアミン、ポリピロール、ポリアニリン、ポリパラフェニレン、ポリパラフェニレンビニレン、ポリエチルイミンから選ばれるポリマー水溶液であるので、活性炭の表面細孔の多くを塞ぐことなく、活性炭とヒドラジン誘導体の間に正の電荷をもつポリマー層が形成され、直接活性炭とヒドラジン誘導体とが接することが防止されてヒドラジン誘導体の消臭性能が低下することのない消臭フィルターの製造方法となる。 In the invention of [2], since the polymer solution having a positive charge is a polymer aqueous solution selected from polyallylamine, polypyrrole, polyaniline, polyparaphenylene, polyparaphenylene vinylene, and polyethylimine, Without blocking most of this, a positively charged polymer layer is formed between the activated carbon and the hydrazine derivative, preventing direct contact between the activated carbon and the hydrazine derivative, so that the deodorizing performance of the hydrazine derivative does not deteriorate. It becomes the manufacturing method of a deodorizing filter.
［３］の発明では、前記ヒドラジン誘導体溶液が、セミカルバジド類、ヒドラジド類、ヒドラジン類から選ばれる１種または複数のヒドラジン誘導体の水溶液であるので、混抄紙にヒドラジン誘導体を均一に分散して担持することができ、特にアセトアルデヒドに対して吸着消臭効果が大きく、即効性に優れた消臭フィルターの製造方法とすることができる。 In the invention of [3], since the hydrazine derivative solution is an aqueous solution of one or more hydrazine derivatives selected from semicarbazides, hydrazides, and hydrazines, the hydrazine derivative is uniformly dispersed and supported on the mixed paper. In particular, it can be a method for producing a deodorizing filter that has a large adsorption and deodorizing effect on acetaldehyde and is excellent in immediate effect.
［４］の発明では、前項１〜３のいずれか１項の製造方法で作られた消臭フィルターには、消臭フィルターに対し活性炭が４５〜７５質量％、正の電荷をもつポリマーが０．０１〜５質量％、ヒドラジン誘導体を０．５〜２０質量％と、それぞれ大量に含ませることができることから、アセトアルデヒド、酢酸等の悪臭に特に優れた吸着消臭効果を発揮することができるとともに、短時間で消臭する即効性能と耐久性にも優れた消臭フィルターとすることができる。 In the invention of [4], the deodorizing filter produced by the production method according to any one of the preceding items 1 to 3 has 45 to 75% by mass of activated carbon and 0 to a positively charged polymer with respect to the deodorizing filter. .01-5% by mass and hydrazine derivative of 0.5-20% by mass, respectively, can be contained in large amounts, and thus can exhibit an adsorption and deodorizing effect that is particularly excellent against bad odors such as acetaldehyde and acetic acid. Therefore, it is possible to provide a deodorizing filter excellent in immediate effect and durability for deodorizing in a short time.
本発明の消臭フィルターは、例えば、ファン等の前後に設置して、悪臭ガスを該消臭フィルター内に通過せしめることによって消臭を行なうもので、ヒドラジン誘導体と、活性炭とを含み、特に、アセトアルデヒド、酢酸等の悪臭やトルエン、一酸化炭素等の有害ガスの吸着除去に優れた効果を発揮し、耐久性にも優れている。 The deodorizing filter of the present invention is installed, for example, before and after a fan or the like, and deodorizes by allowing malodorous gas to pass through the deodorizing filter, including a hydrazine derivative and activated carbon, It exhibits excellent effects in adsorbing and removing bad odors such as acetaldehyde and acetic acid and harmful gases such as toluene and carbon monoxide, and has excellent durability.
本発明における活性炭混抄紙は通常の湿式抄紙法により製造できる。活性炭と天然パルプを水１００重量部に対し８〜２２．５重量部添加し、水スラリーを作成する。そのスラリーを攪拌しながら所定の固形分濃度に調整し、その後カチオン系ポリマー又はアニオン系ポリマー（例えばアミノアルキルアクリレート４級塩共重合体、アクリルアミド−アクリル酸共重合体を挙げられる。）を０．１〜０．５重量部添加し、得られた凝集体水分散液を抄紙機を使い湿式抄紙法によりシート化し、乾燥処理を行なうことによって活性炭混抄紙を得る。次に、この活性炭混抄紙をコルゲート加工機を用いて、ハニカム形状に加工しフィルター材とするものである。 The activated carbon mixed paper in the present invention can be produced by a normal wet papermaking method. Activated charcoal and natural pulp are added in an amount of 8 to 22.5 parts by weight with respect to 100 parts by weight of water to form a water slurry. The slurry is adjusted to a predetermined solid content concentration while stirring, and then a cationic polymer or an anionic polymer (for example, an aminoalkyl acrylate quaternary salt copolymer or an acrylamide-acrylic acid copolymer) is reduced to 0. 1 to 0.5 part by weight is added, and the obtained aggregate aqueous dispersion is formed into a sheet by a wet papermaking method using a paper machine and dried to obtain an activated carbon mixed paper. Next, this activated carbon mixed paper is processed into a honeycomb shape using a corrugating machine to obtain a filter material.
活性炭としては、椰子殻活性炭、石油ピッチ系球状活性炭、活性炭素繊維、木質系活性炭等の活性炭系炭素多孔質体が、吸着比表面積が非常に高いことから好ましく用いられる。中でも、椰子殻活性炭を用いるのが特に好ましい。 As the activated carbon, activated carbon-based porous bodies such as coconut shell activated carbon, petroleum pitch-based spherical activated carbon, activated carbon fiber, and wood-based activated carbon are preferably used because of their extremely high adsorption specific surface area. Among them, it is particularly preferable to use coconut shell activated carbon.
前記消臭フィルターに対し、活性炭は４５〜７５質量％と大量に含ませることが好ましい。前記消臭フィルターに対して、活性炭が４５質量％を下回ると悪臭ガスの吸着スピードが低下するので好ましくない。また、７５質量％を越えて担持させると、必然的にセルロース系繊維の割合が減少する結果、フィルターとしての物理的な強度が低下したり、活性炭が離脱しやすくなるので好ましくない。より好ましくは５０〜７０質量％である。 The activated carbon is preferably contained in a large amount of 45 to 75% by mass with respect to the deodorizing filter. If the activated carbon is less than 45% by mass with respect to the deodorizing filter, the adsorption speed of malodorous gas decreases, which is not preferable. On the other hand, if the amount exceeds 75% by mass, the proportion of the cellulosic fibers inevitably decreases, so that the physical strength as a filter is reduced and the activated carbon is easily detached, which is not preferable. More preferably, it is 50-70 mass%.
次に、本発明においては、該活性炭混抄紙からなるフィルターを、正の電荷をもつポリマー溶液に浸漬処理する必要がある。正の電荷をもつポリマーとしては、ポリアリルアミン、ポリピロール、ポリアニリン、ポリパラフェニレン、ポリパラフェニレンビニレン、ポリエチルイミンを挙げることができる。前記正の電荷をもつポリマー溶液に活性炭混抄紙からなるフィルターを浸漬するとセルロース系繊維と正の電荷をもつポリマーが強く結合するが、活性炭にも付着することから、浸漬処理後にフィルターを水洗することが好ましい。この水洗により余分なポリマーが取り除かれ、活性炭の表面細孔を塞ぐことが防止される。次に正の電荷をもつポリマー溶液で浸漬処理されたフィルターに、さらにヒドラジン誘導体を担持させる。この時該正の電荷をもつポリマー層の存在により、直接活性炭とヒドラジン誘導体とが接することが防止されて、ヒドラジン誘導体の消臭性能が活性炭によって低下することのない消臭フィルターとなる。 Next, in the present invention, it is necessary to immerse the filter made of the activated carbon mixed paper in a polymer solution having a positive charge. Examples of the positively charged polymer include polyallylamine, polypyrrole, polyaniline, polyparaphenylene, polyparaphenylene vinylene, and polyethylimine. When a filter made of activated carbon mixed paper is immersed in the positively charged polymer solution, the cellulosic fibers and the positively charged polymer are strongly bonded to each other, but also adhere to the activated carbon. Is preferred. This washing with water removes excess polymer and prevents the surface pores of the activated carbon from being blocked. Next, a hydrazine derivative is further supported on a filter immersed in a polymer solution having a positive charge. At this time, the presence of the positively charged polymer layer prevents direct contact between the activated carbon and the hydrazine derivative, resulting in a deodorizing filter in which the deodorizing performance of the hydrazine derivative is not deteriorated by the activated carbon.
また、前記正の電荷をもつポリマーは、消臭フィルターに対し、０．０１〜５質量％含まれるのが良好である。０．０１質量％を下回ると、直接活性炭とヒドラジン誘導体とが接することが多くなり、ヒドラジン誘導体の消臭性能が活性炭によって低下するので好ましくない。５質量％を上回ると活性炭表面がポリマーによって覆われてしまうことから好ましくない。より好ましくは、０．１〜３．０質量％とするのがよい。 The polymer having a positive charge is preferably contained in an amount of 0.01 to 5% by mass with respect to the deodorizing filter. If it is less than 0.01% by mass, the activated carbon and the hydrazine derivative are often in direct contact with each other, and the deodorizing performance of the hydrazine derivative is lowered by the activated carbon, which is not preferable. If it exceeds 5 mass%, the activated carbon surface is covered with the polymer, which is not preferable. More preferably, it is good to set it as 0.1-3.0 mass%.
前記ヒドラジン誘導体としては、水溶性のものが好ましく、セミカルバジド類、ヒドラジド類、ヒドラジン類から選ばれる１種または複数のヒドラジン誘導体がよい。具体的にセミカルバジド類としては、例えば１，６−ヘキサメチレンビス（Ｎ，Ｎ−ジメチルセミカルバジド）１，１，１’，１’−テトラメチル−４，４’−（メチレン―ジ―Ｐ−フェニレン）ジセミカルバジド、ビュレットリートリ（ヘキサメチレン−Ｎ，Ｎ−ジメチルセミカルバジド）、塩酸セミカルバジド、チオセミカルバジド等を挙げることができる。ヒドラジド類としては、例えばカルボヒドラジド、シュウ酸ヒドラジド、アジピン酸ジヒドラジド、セバシン酸ジヒドラジド、ドテカンニ酸ジヒドラジド、マレイン酸ヒドラジド、イソフタル酸ヒドラジド等を挙げることができる。ヒドラジン類としては、例えばヒドラジン、水加ヒドラジン、モノメチルヒドラジン、ジメチルヒドラジン、ｔ−ブチルヒドラジン塩酸塩、硫酸ヒドラジン、炭酸ヒドラジン、塩酸ヒドラジン、ニ塩酸ヒドラジン、リン酸ヒドラジン、臭酸ヒドラジン等を挙げることができる。また、ヒドラジン誘導体は、たばこ臭に多く含まれるとされるアセトアルデヒド等のアルデヒド成分の化学吸着に有効で、即効性に優れた消臭剤である。 The hydrazine derivative is preferably water-soluble, and one or more hydrazine derivatives selected from semicarbazides, hydrazides, and hydrazines are preferable. Specific examples of the semicarbazide include 1,6-hexamethylenebis (N, N-dimethylsemicarbazide) 1,1,1 ′, 1′-tetramethyl-4,4 ′-(methylene-di-P-phenylene). ) Disemicarbazide, burette litri (hexamethylene-N, N-dimethylsemicarbazide), hydrochloric acid semicarbazide, thiosemicarbazide and the like. Examples of hydrazides include carbohydrazide, oxalic hydrazide, adipic acid dihydrazide, sebacic acid dihydrazide, dotecannic acid dihydrazide, maleic acid hydrazide, and isophthalic acid hydrazide. Examples of hydrazines include hydrazine, hydrated hydrazine, monomethyl hydrazine, dimethyl hydrazine, t-butyl hydrazine hydrochloride, hydrazine sulfate, hydrazine carbonate, hydrazine hydrochloride, hydrazine dihydrochloride, hydrazine phosphate, and hydrazine odorate. it can. Also, hydrazine derivatives are effective deodorizers that are effective for chemical adsorption of aldehyde components such as acetaldehyde, which are considered to be contained in a large amount of tobacco odor, and have excellent immediate effects.
前記消臭フィルターに対し、ヒドラジン誘導体は０．５〜２０質量％含まれることが好ましい。ヒドラジン誘導体の担持量が０．５質量％を下回るとアルデヒド類に対する即効性能が低下し好ましくない。２０質量％を上回ると活性炭の性能を低下させることから好ましくない。より好ましくは、１．０〜１０重量％添加するのがよい。 It is preferable that 0.5-20 mass% of hydrazine derivatives are contained with respect to the said deodorizing filter. When the amount of hydrazine derivative supported is less than 0.5% by mass, the immediate effect on aldehydes is undesirably lowered. If it exceeds 20% by mass, the performance of the activated carbon is lowered, which is not preferable. More preferably, 1.0 to 10% by weight is added.
また、本発明の消臭フィルターにおいては、発明を妨げない範囲で、さらに他の消臭剤や臭気吸着剤や各種添加剤等を担持せしめた構成を採用しても良い。 Moreover, in the deodorizing filter of this invention, you may employ | adopt the structure which carry | supported other deodorizing agents, an odor adsorption agent, various additives, etc. in the range which does not prevent invention.
次ぎに実施例により、本発明を具体的に説明する。なお実施例における各種消臭性能の測定は、本発明のフィルターを４００×３００×１２（ｍｍ）の大きさに裁断し、市販されている空気清浄機のフィルターに置き換え、該空気清浄機を１ｍ３のアクリルボックス内に入れ、各種消臭性能の測定を行った。まず、アクリルボックス内でタバコ５本を燃焼させた後、１０分後の一酸化炭素、アセトアルデヒド、酢酸の初期濃度を検知管で測定し、その後空気清浄機を運転する。
（即効性能試験）
空気清浄機を運転して１分後の各ガスの濃度を検知管で測定し除去率（％）を求める。除去率が９０％以上であるものを「◎」、除去率が８５％以上９０％未満であるものを「○」、除去率が８０％以上８５％未満であるものを「△」、除去率が８０％未満であるものを「×」とし、「○」以上を合格と評価した。
Next, the present invention will be described specifically by way of examples. In addition, the measurement of various deodorization performance in an Example cuts the filter of this invention into the magnitude | size of 400x300x12 (mm), replaces it with the filter of the commercially available air cleaner, and this air cleaner is 1 m. 3 was placed in an acrylic box and various deodorizing performances were measured. First, after burning five cigarettes in an acrylic box, the initial concentrations of carbon monoxide, acetaldehyde, and acetic acid after 10 minutes are measured with a detector tube, and then the air cleaner is operated.
(Immediate performance test)
After operating the air cleaner, measure the concentration of each gas with a detector tube 1 minute later to determine the removal rate (%). “◎” if the removal rate is 90% or more, “◯” if the removal rate is 85% or more and less than 90%, “△” if the removal rate is 80% or more and less than 85%, and removal rate. In which less than 80% was evaluated as “x”, and “◯” or more was evaluated as acceptable.
（耐久性能試験）
空気清浄機を運転して３０分後の各ガスの濃度を検知管で測定し除去率（％）を求め、これを５０回繰り返した後の除去率が９０％以上であるものを「◎」、除去率が８５％以上９０％未満であるものを「○」、除去率が８０％以上８５％未満であるものを「△」、除去率が８０％未満であるものを「×」とし、「○」以上を合格と評価した。
(Durability test)
Measure the concentration of each gas 30 minutes after operating the air cleaner with a detector tube to determine the removal rate (%), and after repeating this 50 times, the removal rate is 90% or more. , “◯” when the removal rate is 85% or more and less than 90%, “△” when the removal rate is 80% or more and less than 85%, and “X” when the removal rate is less than 80%, “○” or higher was evaluated as acceptable.
（長期耐久性能試験）
一ヵ月後に前記耐久性能試験と同様な試験を行い、除去率が９０％以上であるものを「◎」、除去率が８５％以上９０％未満であるものを「○」、除去率が８０％以上８５％未満であるものを「△」、除去率が８０％未満であるものを「×」とし、「○」以上を合格と評価した。
(Long-term durability test)
One month later, a test similar to the above-mentioned durability performance test is performed. A sample with a removal rate of 90% or more is indicated by “◎”, a sample with a removal rate of 85% or more and less than 90% is indicated by “◯”, and a removal rate is 80%. Those with less than 85% were evaluated as “Δ”, those with a removal rate of less than 80% were evaluated as “x”, and “○” or more were evaluated as acceptable.
＜実施例１＞
椰子殻活性炭１０．０重量部と天然パルプ１０．０重量部を水１００質量部に添加し、水スラリーを作成し、さらにアミノアルキルアクリレート４級塩共重合体（カチオン系ポリマー）を０．２重量部添加して得られた凝集体水分散液を、抄紙機を使い湿式抄紙法によりシート化し、乾燥処理を行ない混抄紙（目付１００ｇ／ｍ２）を得た。得られた混抄紙の一部を、コルゲート加工機を用いて波型形状紙に加工した。この波型形状紙と平面形状紙を、エチレンー酢酸ビニル共重合体からなる接着剤で接着して積層し、セル密度が２３０セル／ｉｎｃｈ２のハニカム形状に加工したフィルター材を得た。次にポリアリルアミンの１．５％水溶液にフィルター材を１０分間浸漬し、水洗乾燥した後さらに、アジピン酸ジヒドラジドの３．０％水溶液にフィルター材を１０分間浸漬し、乾燥後所定の大きさに裁断し、空気清浄機に搭載して、上記の即効性能試験、耐久性能試験、長期耐久性能試験を行ない除去率を表１に記載した。
<Example 1>
10.0 parts by weight of coconut shell activated carbon and 10.0 parts by weight of natural pulp are added to 100 parts by weight of water to form a water slurry, and 0.2 parts of an aminoalkyl acrylate quaternary salt copolymer (cationic polymer) is added. The aggregate aqueous dispersion obtained by adding parts by weight was formed into a sheet by a wet papermaking method using a paper machine and dried to obtain a mixed paper (100 g / m 2 basis weight). A part of the obtained mixed paper was processed into corrugated paper using a corrugating machine. The corrugated paper and the flat paper were adhered and laminated with an adhesive made of an ethylene-vinyl acetate copolymer to obtain a filter material processed into a honeycomb shape with a cell density of 230 cells / inch 2 . Next, the filter material is immersed in a 1.5% aqueous solution of polyallylamine for 10 minutes, washed with water and dried. Further, the filter material is immersed in a 3.0% aqueous solution of adipic acid dihydrazide for 10 minutes and dried to a predetermined size. The removal rate was listed in Table 1 after cutting and mounting in an air purifier and performing the above-mentioned immediate effect performance test, durability performance test, and long-term durability performance test.
＜実施例２〜８＞
次に、表１のように各構成を変えて消臭フィルターを得た。各性能試験を行ない、除去率を表１に記載した。全て良好な即効性能、耐久性能、長期耐久性能を発揮していた。
<Examples 2 to 8>
Next, each structure was changed as shown in Table 1 to obtain a deodorizing filter. Each performance test was performed and the removal rate is shown in Table 1. All exhibited good immediate performance, durability, and long-term durability.
＜比較例１＞
実施例１において、ポリアリルアミンの１．５％水溶液に浸漬しなかった以外は実施例１と同様にして消臭フィルターを得、除去率を表２に記載した。
<Comparative Example 1>
In Example 1, a deodorizing filter was obtained in the same manner as in Example 1 except that it was not immersed in a 1.5% aqueous solution of polyallylamine. The removal rate is shown in Table 2.
＜比較例２〜６＞
表２のように各構成を変えて消臭フィルターを得た。各性能試験を行ない、除去率を表２に記載したが、良好な即効性能、耐久性能を得られなかった。比較例４は良好な即効性能、耐久性能であったが、フィルターとしての強度が得られなく不合格とした。
<Comparative Examples 2-6>
As shown in Table 2, each configuration was changed to obtain a deodorizing filter. Each performance test was conducted and the removal rate is shown in Table 2. However, good immediate performance and durability were not obtained. Comparative Example 4 had good immediate performance and durability, but was rejected because the strength as a filter could not be obtained.
本発明の技術は、家庭用または業務用のエアコン、空気清浄機等のフィルター材、あるいは車などにおける車内空気のいやな臭を取り除くフィルター材、特にタバコ臭を効率よく取り除くフィルター材として広く利用される。 The technology of the present invention is widely used as a filter material for household or commercial air conditioners, air purifiers, or the like, or a filter material that removes annoying odors from the interior air of cars, especially a filter material that efficiently removes tobacco odors. The
Claims (4)
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| JP2022080150A (en) * | 2020-11-17 | 2022-05-27 | ユニチカ株式会社 | Pleat filter and manufacturing method thereof |
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