JPS58150413A - Deodorising and adsorbing filter sheet - Google Patents
Deodorising and adsorbing filter sheetInfo
- Publication number
- JPS58150413A JPS58150413A JP57030924A JP3092482A JPS58150413A JP S58150413 A JPS58150413 A JP S58150413A JP 57030924 A JP57030924 A JP 57030924A JP 3092482 A JP3092482 A JP 3092482A JP S58150413 A JPS58150413 A JP S58150413A
- Authority
- JP
- Japan
- Prior art keywords
- activated carbon
- adsorbing
- filter sheet
- particle
- nonwoven fabric
- 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.)
- Granted
Links
- 239000002245 particle Substances 0.000 claims abstract description 31
- 239000000835 fiber Substances 0.000 claims abstract description 20
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 14
- 229920005989 resin Polymers 0.000 claims abstract description 10
- 239000011347 resin Substances 0.000 claims abstract description 10
- 239000011230 binding agent Substances 0.000 claims abstract description 5
- 238000001914 filtration Methods 0.000 claims abstract description 5
- 238000005187 foaming Methods 0.000 claims abstract description 3
- 238000001179 sorption measurement Methods 0.000 claims description 12
- 230000001877 deodorizing effect Effects 0.000 claims description 10
- 239000003463 adsorbent Substances 0.000 claims description 4
- 239000000470 constituent Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 2
- 230000000717 retained effect Effects 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 42
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 10
- SJRJJKPEHAURKC-UHFFFAOYSA-N N-Methylmorpholine Chemical compound CN1CCOCC1 SJRJJKPEHAURKC-UHFFFAOYSA-N 0.000 abstract description 6
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 229920001296 polysiloxane Polymers 0.000 abstract description 2
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 7
- 239000010410 layer Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 235000019645 odor Nutrition 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 210000001316 polygonal cell Anatomy 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 241001424309 Arita Species 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 229920002821 Modacrylic Polymers 0.000 description 1
- YNPNZTXNASCQKK-UHFFFAOYSA-N Phenanthrene Natural products C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- DGEZNRSVGBDHLK-UHFFFAOYSA-N [1,10]phenanthroline Chemical compound C1=CN=C2C3=NC=CC=C3C=CC2=C1 DGEZNRSVGBDHLK-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 230000006866 deterioration Effects 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
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 125000002573 ethenylidene group Chemical group [*]=C=C([H])[H] 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 108091008695 photoreceptors Proteins 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Landscapes
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Treating Waste Gases (AREA)
- Separation Of Gases By Adsorption (AREA)
- Filtering Materials (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は基材不織布1構成する繊維表面に化学的発泡を
行った発泡樹脂結合剤で活性炭粒子を固着せしめた脱臭
吸着濾過シー2トの構成に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a deodorizing adsorption filter sheet 2 in which activated carbon particles are fixed to the surface of the fibers constituting the base nonwoven fabric 1 using a chemically foamed foamed resin binder.
従来、脱臭吸着材料は靴や自動車内の脱臭、空調機の空
気滲化、薬品、医療器具の脱臭、有害ガス、蒸気等の吸
着などにシート材料とじて種々の用途に用いられている
。Conventionally, deodorizing and adsorbing materials have been used as sheet materials for various purposes, such as deodorizing shoes and the inside of automobiles, air permeation in air conditioners, deodorizing medicines and medical instruments, and adsorbing harmful gases and vapors.
近年、事ム機器として複写機の発達によりトナー粒子及
びマイナス帯電の性質を有する感光体を使用するドラム
タイプの乾式複写機が用いられているが、このタイプの
複写機は使用中に発生するオゾンガスによる使用環境の
悪化が問題化し、この対策として各種のフィ□ルターが
提案されている。従来かかる有害ガスの吸着には粒度の
大きい活性炭をステンレス性金綱にて挾み板状に固定し
たもの、tけ粒度の小さい活性炭t−P材とする不織布
、織布等で挾持し接着剤で同定したシート状のフィルタ
ーエレメントが使用されているが、前者はオゾンガスの
吸着には効率よく用いることができるが、粒径の小さい
トナー粒子ではトナーが粒径の大金い活性炭層間間隙を
通過してしまうという欠点があり、又徒者は不繊布、紙
、繊准等の8枚の板状シート材IP材としその間に活性
炭粉末を挟持した構造で′あり、活性炭相互および活性
炭粉体とシ−ト秋物の固着が殆んど行われていないため
目的の寸法釦合わせた切断使用に於ては活性炭がシート
外へと埋れ落ちた秒、片寄ったりする取扱い上の欠点が
あり、更に上記使用に際して社表層のP材でトナー粒子
を効率よく除去し、活性炭にてオシガスta着せしめる
のであるが、活性炭の寿命時間に達するまでに!1度の
萬い板状P材がトナー粒子の付着目詰まりにより圧力損
失が増大し、機内の温度上昇をもたらす勢の欠点があり
、更に活性炭吸着性能が残っているにも拘らずフィルタ
ーエレメントの交換が必要となり、ランニングコストが
高く、活性炭の機能を充分忙発揮できない欠点がある。In recent years, with the development of copying machines, drum-type dry copying machines that use toner particles and a negatively charged photoreceptor have been used. The deterioration of the usage environment due to this has become a problem, and various filters have been proposed as a countermeasure. Conventionally, to adsorb such harmful gases, activated carbon with large particle size is sandwiched between stainless steel wire and fixed in the shape of a plate, and activated carbon with small particle size is sandwiched between non-woven fabrics, woven fabrics, etc. using t-P material and adhesive is used. The identified sheet-shaped filter element is used, and although the former can be used efficiently for adsorption of ozone gas, the toner particles with small particle size pass through the gaps between the activated carbon layers with large particle size. It also has the disadvantage that the activated carbon powder is sandwiched between eight sheets of IP material such as nonwoven fabric, paper, and textiles, and activated carbon powder is sandwiched between them. - Since the adhesion of autumn items is almost not done, there is a disadvantage in handling that the activated carbon may fall to the outside of the sheet and become lopsided when used for cutting to match the desired size. At this time, the toner particles are efficiently removed using the P material on the surface layer, and the toner particles are coated with activated carbon, but the life of the activated carbon is reached! The disadvantage is that the P material in the form of a single-layer plate increases pressure loss due to adhesion and clogging of toner particles, leading to an increase in temperature inside the machine.Furthermore, even though the activated carbon adsorption performance remains, the filter element It requires replacement, has high running costs, and has the drawback of not being able to fully utilize the functions of activated carbon.
本発明はかかる従来の問題点を解消するものであ抄、乾
式コピー機を始めとして各種の有害ガス、悪臭等の発生
源より発生する有害ガス、悪臭を効率よく吸着し、同時
に発生する空気中に浮遊するトナー粒子の様な有害性の
微粒子を効率よく捕集P遇する長寿命の脱臭、吸着濾過
シート材を提供するものである。The present invention solves such conventional problems by efficiently adsorbing harmful gases and bad odors generated from various sources such as paper making and dry copying machines, and at the same time, The object of the present invention is to provide a long-life deodorization and adsorption filtration sheet material that efficiently collects and collects harmful particles such as toner particles floating in the air.
以下本発明の1実施例を図面に従って詳細に説明する。An embodiment of the present invention will be described in detail below with reference to the drawings.
実施例
空気流方式によるウェブ形成機によって3デニールlS
l閣のポリアンド繊維80%%6デニール51−のポリ
エステル繊維層O%からなる重さ100 f/dのウェ
ブを形成し、ポリビニールアルコール100g、水溶性
メラミン樹脂100部、触媒8部(固形比)K水を加え
て全固形分3%の水溶液をウェブの上下表面に各々散布
乾燥して、乾燥固形分付着量を8517がとし九嵩高の
基材不織布を先ず形成する。Example: 3 denier lS by air flow type web forming machine
A web with a weight of 100 f/d consisting of 80% polyand fiber layer and 0% polyester fiber layer of 6 denier was formed, and 100 g of polyvinyl alcohol, 100 parts of water-soluble melamine resin, and 8 parts of catalyst (solid ratio) were formed. ) Add K water and spray and dry an aqueous solution having a total solid content of 3% on the upper and lower surfaces of the web, respectively, to obtain a dry solid content of 8517 to form a bulky base nonwoven fabric.
次にポリプロピレングリコ−k100部に水0.4部t
mt、85C−4o’c テs o f)間matル。Next, 0.4 parts of water to 100 parts of polypropylene glyco-k
mt, 85C-4o'c test of f) matl.
これK N CO10Ht! t、ms部、NCO/T
1ρ は1部になるようトルエンジインシアネートを加
えて生じる発熱反応が終って徒、毎分8°Cの割合で]
jlOOK昇湿させ、混合物を攪拌しながら110C−
t”90分11i!ち、800CK冷却後、IJKMC
Oが9.5%となるようにポリプロピレングリコールを
加えて反応管完結し4.0CK冷却してウレタンプレポ
リマーを調整する。This is K N CO10Ht! t, ms part, NCO/T
1ρ is 1 part of toluene diincyanate added at a rate of 8°C per minute after the exothermic reaction that occurs]
jlOOK was heated to 110C while stirring the mixture.
t"90 minutes 11i! After cooling 800CK, IJKMC
Polypropylene glycol was added so that the O content was 9.5% to complete the reaction tube, and the tube was cooled for 4.0 CK to prepare a urethane prepolymer.
上記ウレタンプレポリマー100部、シリコン0.5部
、Nメチルモルホリン1部、トリエチルア建ンa°8部
、水ttss部となるように配合した発泡性樹脂結合剤
溶液1’jlO〜15メツシユの粒状活性炭を混合する
。この活性炭混合ウレタンプレポリマー#液を上記嵩高
の基材不織布に含浸飽充し、紋りp−ルを通過せしめて
乾燥固形分付着量が18i#/+lI′となるよう調整
し、キュアーを行って発泡ウレタンプレポリマーを固化
し、同時に活性炭粒子(付着量100 lea″)を不
織布構成繊維表mK固着せしめ九厚さ約1sU1重量4
809/dの通気性の板状の脱I1.@着P遍シートを
得る。A foamable resin binder solution mixed with 100 parts of the above urethane prepolymer, 0.5 parts of silicone, 1 part of N-methylmorpholine, 8 parts of triethylamine, and ttss parts of water is in the form of particles of 1'jlO to 15 meshes. Mix activated carbon. This activated carbon-mixed urethane prepolymer solution # is impregnated into the bulky nonwoven fabric, passed through a molded plastic, adjusted to have a dry solid content of 18i#/+lI', and cured. The foamed urethane prepolymer was solidified, and at the same time activated carbon particles (adhesion amount: 100 lea) were adhered to the surface of the fibers constituting the nonwoven fabric.
809/d breathable plate-like de-I1. @ Get the Phen sheet.
このようにして形成された脱臭吸着P4シートは図面虻
示す機虻、基材不織有田を構成する− 藤 −
繊@1幻が相互に交絡する嵩高の繊維間間隙、繊維表w
K付着した発泡性樹脂であるウレタンプレポリマーIl
+が水との発泡硬化反応の際、球形又は多角形の細胞状
に発泡、硬化し、しかも活性炭粒径よりもけるかに小径
の4のとなる。従ってウレタンプレポリマー(よって繊
維表面に固着された活性炭粒子(4)は発泡ウレタン樹
脂によって被覆される面積が少なくて済み、悪臭、有害
ガス尋の吸着を防げることなく、長時間に渡ってその効
果を発揮させる仁とが可能となった。tた活性炭の適用
は基材不繊布に所定量の発泡性ウレタンプレポリマー溶
液を所定量付着せしめた後、活性炭散布装置により上記
基材不織布表面に散布して不織布構成繊維層の繊維表m
Km着させることによって更に@着効果の°良好なゐ脱
臭吸着−過シートを形成することも出来る。The deodorizing and adsorbing P4 sheet formed in this way constitutes the base material non-woven Arita as shown in the drawing.
Urethane prepolymer Il, which is a foamable resin attached to K
During the foaming and hardening reaction with water, + foams and hardens into spherical or polygonal cells, and becomes 4, which has a much smaller diameter than the activated carbon particle size. Therefore, the urethane prepolymer (therefore, the activated carbon particles (4) fixed to the fiber surface) need only have a small area covered by the foamed urethane resin, and the effect can be maintained for a long time without preventing the adsorption of bad odors and harmful gases. It is now possible to apply the activated carbon by applying a predetermined amount of foamable urethane prepolymer solution to the base nonwoven fabric, and then spraying it onto the surface of the base nonwoven fabric using an activated carbon spraying device. The fiber surface m of the nonwoven fabric constituent fiber layer is
By applying Km, it is also possible to form a deodorizing and adsorbing sheet with even better adhesion effects.
尚発泡性樹脂はウレタンプレポリマーの他、発泡性アク
リル樹脂や化学的発泡が可能な他の 6−
樹脂材料を使用することができる。In addition to the urethane prepolymer, the foamable resin may be a foamable acrylic resin or other resin material that can be chemically foamed.
また不縁布構成繊IIi[はポリアミド、ポリエステル
繊維の他ポリプロピレン、アクリル、ポリjk 4?、
ビニリデン、モダアクリル繊維、レーヨン、アセテート
等の化学繊維やその他天然繊*t−使用し、また上記や
臭畷着−過シートの上流側に不織布)“イルターエレメ
ントを一体に貼合わせて構成してもよい◎
上記の様に構成された脱臭吸着濾過シートは乾式複写機
のオゾン、トナー粒子等の発生源に吸着濾過シートとし
て使用した際、活性炭粒子により、オゾンガスを吸着せ
しめると同時に空気中に浮遊するトナー粒子を多孔通気
性の繊維層で効率よく、目詰りさせずに捕集−過せしめ
ることができる他、有害ガス排気装置、自動車、エアコ
ン等の脱臭、吸着シートとして有害ガスや塵挨等の吸着
、−過にも秀れた効果を発揮させることができる。本発
明は上記の如く比較的細デニールの繊維を用いて構成し
たランダム配列の絡合繊維層の繊維表面Kw1着させた
小さな球形又は多角形の細胞状に発泡した発泡性樹脂結
合剤によって活性炭、ゼオライト、シリカゲル等の細か
い吸着剤粒子の一部を捕足し繊維に固着した構造となし
たため、表面積の大きい吸着剤粒子の吸着性能を防げる
ことなく飛躍的に向上させることができ、長時間に渡り
吸着性能を持続する。吸着剤粒子が個々に発泡樹脂によ
り固着されているので脱落することなく取扱いが容易で
ある。In addition, non-woven fabric constituent fiber IIi [is polyamide, polyester fiber, polypropylene, acrylic, polyjk 4? ,
Chemical fibers such as vinylidene, modacrylic fibers, rayon, acetate, and other natural fibers are used, and an ilter element (nonwoven fabric) is integrally laminated on the upstream side of the above-mentioned and odor-absorbing sheets. ◎ When the deodorizing adsorption filtration sheet configured as above is used as an adsorption filtration sheet for a source of ozone, toner particles, etc. in a dry copying machine, the activated carbon particles adsorb ozone gas and at the same time prevent it from floating in the air. The porous, breathable fiber layer can efficiently collect and pass toner particles without clogging, and can also be used as a deodorizing and adsorption sheet for harmful gas exhaust equipment, automobiles, air conditioners, etc. The present invention can exhibit an extremely excellent adsorption effect.As described above, the present invention has a randomly arranged entangled fiber layer constructed using relatively fine denier fibers. The foamable resin binder foamed into spherical or polygonal cells captures some of the fine adsorbent particles such as activated carbon, zeolite, silica gel, etc. and adheres to the fibers, making it possible to adsorb adsorbent particles with a large surface area. It can dramatically improve performance without sacrificing performance, and maintains adsorption performance over a long period of time.Since the adsorbent particles are individually fixed by foamed resin, they do not fall off and are easy to handle.
更に多孔通気性の繊維間骨格により浮遊粒子、塵挨等を
目づまりすることなく捕集戸遇することができるなどの
種々の効果を有する発明である。Furthermore, this invention has various effects such as being able to collect and handle suspended particles, dust, etc. without clogging due to the porous and breathable interfiber skeleton.
図面は本発明の1実施例を示す脱臭吸着f過シートの側
面図である。The drawing is a side view of a deodorizing adsorption filter sheet showing one embodiment of the present invention.
Claims (1)
で結°合割により接着形成した基材不織布の構成繊維表
面に、吸着剤粒子を化学的発泡を行なう発泡樹脂結合剤
により固着し、繊維間に保持してなることを特徴とする
脱臭吸着濾過シート。Adsorbent particles are fixed to the surface of the constituent fibers of the base nonwoven fabric by bonding and bonding in a state where the fibers are intertwined with each other and there are spaces Ii'ft between the fibers, using a foamed resin binder that performs chemical foaming. A deodorizing adsorption filtration sheet characterized by being retained in between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57030924A JPS58150413A (en) | 1982-02-26 | 1982-02-26 | Deodorising and adsorbing filter sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57030924A JPS58150413A (en) | 1982-02-26 | 1982-02-26 | Deodorising and adsorbing filter sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58150413A true JPS58150413A (en) | 1983-09-07 |
| JPS6410251B2 JPS6410251B2 (en) | 1989-02-21 |
Family
ID=12317230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57030924A Granted JPS58150413A (en) | 1982-02-26 | 1982-02-26 | Deodorising and adsorbing filter sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58150413A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6290729U (en) * | 1985-11-26 | 1987-06-10 | ||
| JPH10137351A (en) * | 1996-11-08 | 1998-05-26 | Matsushita Seiko Co Ltd | Mask for removing nitrogen dioxide and for coping with allergy |
| JP2013099483A (en) * | 2011-11-09 | 2013-05-23 | Suminoe Textile Co Ltd | Organic acid smell removing filter |
| JP2013158613A (en) * | 2012-02-08 | 2013-08-19 | Suminoe Textile Co Ltd | Care odor removal filter |
| JP2014008162A (en) * | 2012-06-28 | 2014-01-20 | Suminoe Textile Co Ltd | Filter for removing toilet odor |
| JP2016163873A (en) * | 2015-02-27 | 2016-09-08 | 東洋クロス株式会社 | Strontium adsorption sheet |
-
1982
- 1982-02-26 JP JP57030924A patent/JPS58150413A/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6290729U (en) * | 1985-11-26 | 1987-06-10 | ||
| JPH10137351A (en) * | 1996-11-08 | 1998-05-26 | Matsushita Seiko Co Ltd | Mask for removing nitrogen dioxide and for coping with allergy |
| JP2013099483A (en) * | 2011-11-09 | 2013-05-23 | Suminoe Textile Co Ltd | Organic acid smell removing filter |
| JP2013158613A (en) * | 2012-02-08 | 2013-08-19 | Suminoe Textile Co Ltd | Care odor removal filter |
| JP2014008162A (en) * | 2012-06-28 | 2014-01-20 | Suminoe Textile Co Ltd | Filter for removing toilet odor |
| JP2016163873A (en) * | 2015-02-27 | 2016-09-08 | 東洋クロス株式会社 | Strontium adsorption sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6410251B2 (en) | 1989-02-21 |
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