JPH067894B2 - Sealing method for air filters - Google Patents
Sealing method for air filtersInfo
- Publication number
- JPH067894B2 JPH067894B2 JP61039011A JP3901186A JPH067894B2 JP H067894 B2 JPH067894 B2 JP H067894B2 JP 61039011 A JP61039011 A JP 61039011A JP 3901186 A JP3901186 A JP 3901186A JP H067894 B2 JPH067894 B2 JP H067894B2
- Authority
- JP
- Japan
- Prior art keywords
- viscosity
- sealing
- agent
- sealant
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、例えばガラス繊維や合成繊維を主体とする
過材から成るフィルタパックを外枠内に収容して成る高
性能エアフィルタの該フィルタパックと該外枠とのシー
ル方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a high-performance air filter having a filter pack made of an excess material mainly composed of glass fiber or synthetic fiber housed in an outer frame. The present invention relates to a method of sealing a pack and the outer frame.
（従来の技術） 従来この種エアフィルタのシール方法としては、ゴム系
シール剤或いはエポキシ系シール剤を使用したシール方
法が知られている。(Prior Art) Conventionally, as a sealing method for this kind of air filter, a sealing method using a rubber-based sealing agent or an epoxy-based sealing agent has been known.
（発明が解決しようとする問題点） しかしながら、前記ゴム系シール剤を使用するシール方
法は、シール剤の塗布時にその表面に空気との接触によ
る酸化被膜が生じ、密着性に欠け、また、有機溶剤に用
いるために臭気を有するという不都合を有する。(Problems to be Solved by the Invention) However, the sealing method using the rubber-based sealing agent has a problem that an oxide film is formed on the surface of the sealing agent due to contact with air at the time of application of the sealing agent, resulting in poor adhesion and It has the disadvantage of having an odor because it is used as a solvent.
また、エポキシ系シール剤を使用するシール方法はシー
ル作業時の適正粘度を５分間前後しか保つことができず
作業性が悪く、しかも硬化後のシール剤の柔軟性に欠
け、過材を破損するという不都合を有する。In addition, the sealing method using an epoxy-based sealant can maintain the proper viscosity during the sealing work for only about 5 minutes, resulting in poor workability. Further, the sealant after curing lacks flexibility and damages the excess material. There is an inconvenience.
（問題点を解決するための手段） 本発明は、前記従来の不都合を解消したエアフィルタの
シール方法を提供することをその目的とするもので、そ
の発明は、ポリオールと無機充填材とから成る主剤と、
イソシアネート基を有する硬化剤とを配合したシール剤
を約500〜3000cPの粘度でエアフィルタのシール剤とし
て使用することを特徴とする。(Means for Solving Problems) An object of the present invention is to provide a method for sealing an air filter which eliminates the above-mentioned conventional inconvenience, and the invention comprises a polyol and an inorganic filler. With the main agent,
A sealant compounded with a curing agent having an isocyanate group is used as a sealant for an air filter with a viscosity of about 500 to 3000 cP.
本発明エアフィルタのシール方法に使用するシール剤の
主剤を構成するポリオールとしては、ポリエステルポリ
オール、ポリエーテルポリオール、ポリブタ変性ポリオ
ール、ヒマシ油変性ポリオール等が一般に使用され、ウ
レタン樹脂を形成するものであればこれらに限定される
ものではないが、特にヒマシ油変性ポリオールが好まし
い。As the polyol that constitutes the main component of the sealing agent used in the method for sealing an air filter of the present invention, polyester polyol, polyether polyol, polybuta modified polyol, castor oil modified polyol, etc. are generally used, and may form a urethane resin. For example, castor oil-modified polyol is preferable, though not limited thereto.
無機充填材としては、例えば炭酸カルシウム等が好まし
い。かかる無機充填材は、シール剤の粘度調整並びに硬
化後の硬度の調整に用いられる。As the inorganic filler, for example, calcium carbonate or the like is preferable. Such an inorganic filler is used for adjusting the viscosity of the sealant and adjusting the hardness after curing.
これらポリオールと無機充填材を適当に混合することに
より主剤を構成する。この場合、例えばポリオール50重
量部と無機充填材50重量部との割合で混合する。The main component is constituted by appropriately mixing these polyols and the inorganic filler. In this case, for example, 50 parts by weight of the polyol and 50 parts by weight of the inorganic filler are mixed.
イソシアネート基を有する硬化剤としては例えば変性ジ
フェニルメタンジイソシアネート、トリレンジイソシア
ネート等が一般に使用され、ウレタン樹脂を形成するも
のであれば、これらに限定されるものではないが、特に
毒性等の観点から変性ジフェニルメタンジイソシアネー
トが好ましい。As the curing agent having an isocyanate group, for example, modified diphenylmethane diisocyanate, tolylene diisocyanate and the like are generally used, and as long as they form a urethane resin, they are not limited thereto, but in particular, from the viewpoint of toxicity, modified diphenylmethane is used. Diisocyanates are preferred.
主剤と硬化剤との配合割合は、主剤中の水酸基と硬化剤
中のイソシアネート基の数を１：１になるように配合す
るのが、接着力と反応速度との関係から特に好ましい。It is particularly preferable to mix the main agent and the curing agent such that the number of hydroxyl groups in the main agent and the number of isocyanate groups in the curing agent are 1: 1 from the relationship between the adhesive force and the reaction rate.
ここで、主剤と硬化剤とを配合したシール剤を約500〜3
000cPの粘度で使用する理由を第１図乃至第３図に付き
説明する。Here, about 500 to 3 sealant compounded with the main agent and the curing agent
The reason for using a viscosity of 000 cP will be explained with reference to FIGS. 1 to 3.
図中(1)はフィルタパックを構成する過材、(2)は外
枠、(3)はシール剤を示すもので、シール剤(3)のシール
作業時において、粘度が500cP未満の場合は第１図示の
如く毛細管現象により過材(1)にシール剤(3)が吸収さ
れて過材(1)の過面積を小さくし、またシール剤(3)
が不足して過材(1)と外枠(2)との接着部に間隙が生じ
るためにこれを防止するべく多量のシール剤(3)を用い
なければならず、また粘度が3000cPを超える場合は第２
図示の如くシール剤(3)の流動性が不足して過材(1)と
外枠(2)との接着部の微少な空隙部への侵入度が不足し
てピンホール等を発生させることになり、シール剤(3)
の粘度が約500〜3000cPの範囲内でなければ、第３図示
の如く均一で平坦なシール面が形成できず、良好なシー
ル効果が得られないからである。In the figure, (1) shows the excess material that composes the filter pack, (2) shows the outer frame, and (3) shows the sealing agent.If the viscosity is less than 500 cP when sealing with the sealing agent (3), As shown in the first drawing, the sealing material (3) is absorbed by the excess material (1) by the capillary phenomenon to reduce the excess area of the excess material (1), and the sealing agent (3)
However, a large amount of sealant (3) must be used to prevent this because there is a gap in the bonded portion between the excess material (1) and the outer frame (2), and the viscosity exceeds 3000 cP. If the second
As shown in the figure, the fluidity of the sealant (3) is insufficient, and the degree of penetration of the adhesive between the overmaterial (1) and the outer frame (2) into the minute voids is insufficient, causing pinholes, etc. And sealant (3)
If the viscosity is not within the range of about 500 to 3000 cP, a uniform and flat sealing surface cannot be formed as shown in FIG. 3 and a good sealing effect cannot be obtained.
尚、通常のシール作業時間の10分間に亘って3000cP以下
の粘度を保つには、シール剤の初期粘度を2300cP以下に
調整しておけばよい。In order to maintain the viscosity of 3000 cP or less for 10 minutes of the normal sealing operation time, the initial viscosity of the sealant may be adjusted to 2300 cP or less.
（実施例） 次に本発明の実施例を説明する。(Example) Next, the Example of this invention is described.
実施例１ ポリオールとしてポリエステルポリオール50重量部、無
機充填材として炭酸カルシウム45重量部、顔料として酸
化鉄系顔料５重量部を混合して粘度2500cPの主剤を得、
これに硬化剤として粘度500cPの変性ジフェニルメタン
ジイソシアネートを30重量部配合して、シール剤の粘度
を1000cPとして外枠の内側全面に塗布し、その後フィル
タパックを該外枠内に挿入し、該シール剤を硬化してエ
アフィルタをシールした。Example 1 50 parts by weight of a polyester polyol as a polyol, 45 parts by weight of calcium carbonate as an inorganic filler, and 5 parts by weight of an iron oxide pigment as a pigment were mixed to obtain a main agent having a viscosity of 2500 cP,
30 parts by weight of a modified diphenylmethane diisocyanate having a viscosity of 500 cP as a curing agent was added to this, and the viscosity of the sealing agent was set to 1000 cP and applied to the entire inner surface of the outer frame, and then the filter pack was inserted into the outer frame and the sealing agent was added. Was cured and the air filter was sealed.
実施例２ ポリオールとしてポリエーテルポリオール50重量部、無
機充填材として炭酸カルシウム45重量部、顔料として酸
化鉄系顔料５重量部を混合して粘度2500cPの主剤を得、
これに硬化剤として粘度500cPの変性ジフェニルメタン
ジイソシアネートを30重量部配合して、シール剤の粘度
を1000cPとして実施例１と同様にしてエアフィルタをシ
ールした。Example 2 50 parts by weight of a polyether polyol as a polyol, 45 parts by weight of calcium carbonate as an inorganic filler, and 5 parts by weight of an iron oxide pigment as a pigment were mixed to obtain a main agent having a viscosity of 2500 cP,
30 parts by weight of a modified diphenylmethane diisocyanate having a viscosity of 500 cP was mixed as a curing agent, and the viscosity of the sealing agent was set to 1000 cP to seal the air filter in the same manner as in Example 1.
実施例３ ポリオールとしてポリブタ変性ポリオール50重量部、無
機充填材として炭酸カルシウム45重量部、顔料として酸
化鉄系顔料５重量部を混合して粘度6000cPの主剤を得、
これに硬化剤として粘度200cPの変性ジフェニルメタン
ジイソシアネートを50重量部配合して、シール剤の粘度
を2300cPとして実施例１と同様にしてエアフィルタをシ
ールした。Example 3 50 parts by weight of polybuta-modified polyol as a polyol, 45 parts by weight of calcium carbonate as an inorganic filler, and 5 parts by weight of iron oxide pigment as a pigment were mixed to obtain a main agent having a viscosity of 6000 cP,
50 parts by weight of a modified diphenylmethane diisocyanate having a viscosity of 200 cP was mixed as a curing agent with the sealing agent having a viscosity of 2300 cP, and the air filter was sealed in the same manner as in Example 1.
実施例４ ポリオールとしてヒマシ油変性ポリオールを50重量部、
無機充填材として炭酸カルシウム45重量部、顔料として
酸化鉄系顔料５重量部を混合して粘度6000cPの主剤を
得、これに硬化剤として粘度200cPの変性ジフェニルメ
タンジイソシアネートを30重量部配合して、シール剤の
粘度を1300cPとして実施例１と同様にしてエアフィルタ
をシールした。Example 4 50 parts by weight of castor oil-modified polyol as a polyol,
45 parts by weight of calcium carbonate as an inorganic filler and 5 parts by weight of an iron oxide pigment as a pigment are mixed to obtain a main agent having a viscosity of 6000 cP, and 30 parts by weight of a modified diphenylmethane diisocyanate having a viscosity of 200 cP as a curing agent is blended into the sealant. The air filter was sealed in the same manner as in Example 1 except that the viscosity of the agent was 1300 cP.
第４図は、前記実施例３並びに４において用いたシール
剤のシール作業時における初期粘度の経時的変化を示す
粘度特性線図であり、図中Ａは実施例３の、Ｂは実施例
４のシール剤の粘度曲線を示し、図から明らかなよう
に、通常のシール作業時間の10分間を越える10乃至20数
分の時間に亘ってシール作業に適正な粘度を維持できる
ので、確実なシールを施せた。FIG. 4 is a viscosity characteristic diagram showing the change over time in the initial viscosity of the sealing agent used in Examples 3 and 4 during the sealing operation, where A is Example 3 and B is Example 4 As shown in the figure, the viscosity curve of the sealant is shown, and it is possible to maintain a proper viscosity for the sealing work over 10 to 20 several minutes, which is longer than the normal sealing work time of 10 minutes. I was able to
前記実施例１乃至４のエアフィルタのシール方法を施し
て得られたエアフィルタは、全てフィルタパックと外枠
とが良好にシールされ、捕集効率が99.97％を越えて捕
集性能に優れ、しかも硬化したシール剤は柔軟性に富
み、従ってフィルタパックの過材が破損される虞れの
ないものであった。The air filters obtained by applying the air filter sealing method of Examples 1 to 4 all have a good seal between the filter pack and the outer frame, and the collection efficiency exceeds 99.97% and the collection performance is excellent. Moreover, the cured sealant is highly flexible, and therefore there is no risk that the excess material of the filter pack will be damaged.
（発明の効果） このように、本発明によるときは、ポリオールと無機充
填材とから成る主剤と、イソシアネート基を有する硬化
剤とを配合したシール剤を約500〜3000cPの粘度でエア
フィルタのシール剤として使用するようにしたために、
シール作業時におけるシール剤の適正粘度を長時間に亘
って保つことができ、フィルタパックと外枠との間に良
好な密閉性をもったシールを確実に施せ、しかもシール
後のフィルタパックの過材に破損をもたらしたり、エ
アフィルタに悪臭を残すこともない等の効果を有する。(Effects of the Invention) As described above, according to the present invention, a sealant containing a main agent composed of a polyol and an inorganic filler and a curing agent having an isocyanate group is mixed at a viscosity of about 500 to 3000 cP to seal an air filter. Because I decided to use it as an agent,
The proper viscosity of the sealant during sealing work can be maintained for a long time, and a seal with good airtightness can be reliably provided between the filter pack and the outer frame. It has the effect of not damaging the material and leaving a bad odor on the air filter.
第１図乃至第３図はシール剤の粘度とシール状態の関係
を示す説明線図、第４図は本発明のエアフィルタのシー
ル方法に使用したシール剤のシール作業時における粘度
特性線図である。 (1)…過材 (2)…外枠 (3)…シール剤1 to 3 are explanatory diagrams showing the relationship between the viscosity of the sealant and the sealing state, and FIG. 4 is a viscosity characteristic diagram during the sealing operation of the sealant used in the air filter sealing method of the present invention. is there. (1)… Excess material (2)… Outer frame (3)… Sealant
Claims (1)
と、イソシアネート基を有する硬化剤とを配合したシー
ル剤を約500〜3000cPの粘度でエアフィルタのシール剤
として使用することを特徴とするエアフィルタのシール
方法。1. A sealant comprising a main agent comprising a polyol and an inorganic filler and a curing agent having an isocyanate group, and having a viscosity of about 500 to 3000 cP, which is used as a sealant for an air filter. How to seal the filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61039011A JPH067894B2 (en) | 1986-02-26 | 1986-02-26 | Sealing method for air filters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61039011A JPH067894B2 (en) | 1986-02-26 | 1986-02-26 | Sealing method for air filters |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62197122A JPS62197122A (en) | 1987-08-31 |
| JPH067894B2 true JPH067894B2 (en) | 1994-02-02 |
Family
ID=12541160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61039011A Expired - Fee Related JPH067894B2 (en) | 1986-02-26 | 1986-02-26 | Sealing method for air filters |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH067894B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6148275B2 (en) * | 2015-03-27 | 2017-06-14 | 進和テック株式会社 | High temperature air filter and manufacturing method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4227953A (en) * | 1977-12-02 | 1980-10-14 | Cambridge Filter Corp. | Method of fabricating air filters |
| JPS559277U (en) * | 1978-07-05 | 1980-01-21 | ||
| JPS55174924U (en) * | 1979-05-31 | 1980-12-15 | ||
| JPS56145658U (en) * | 1980-03-18 | 1981-11-02 | ||
| JPS60161417U (en) * | 1984-04-04 | 1985-10-26 | 近藤工業株式会社 | Incinable ventilation filter |
-
1986
- 1986-02-26 JP JP61039011A patent/JPH067894B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62197122A (en) | 1987-08-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |