JPH0612808Y2 - Nonwoven filter - Google Patents
Nonwoven filterInfo
- Publication number
- JPH0612808Y2 JPH0612808Y2 JP1989071544U JP7154489U JPH0612808Y2 JP H0612808 Y2 JPH0612808 Y2 JP H0612808Y2 JP 1989071544 U JP1989071544 U JP 1989071544U JP 7154489 U JP7154489 U JP 7154489U JP H0612808 Y2 JPH0612808 Y2 JP H0612808Y2
- Authority
- JP
- Japan
- Prior art keywords
- woven fabric
- filter
- present
- layers
- fabric layers
- 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 - Lifetime
Links
Landscapes
- Nonwoven Fabrics (AREA)
- Filtering Materials (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は排気ダクト等に設けられる不織布製フィルター
の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to improvement of a non-woven fabric filter provided in an exhaust duct or the like.
この種の不織布製フィルターは通常不織布製の基材の片
面に接着剤を用いて不織布材を接着して構成されてお
り、見掛け密度は通常0.06g/cm3程度に設定されてい
る。This type of non-woven fabric filter is usually constructed by adhering a non-woven fabric material to one surface of a non-woven fabric substrate with an adhesive, and the apparent density is usually set to about 0.06 g / cm 3 .
〔考案が解決しようとする課題〕 ところでこのように従来の不織布製フィルターにあって
は通気性が低く圧力損失が大きいこと、また高温多湿の
環境下で長時間使用されるために水分が基材と不織布と
の間の接着力を劣化させ、相互の接合面が剥離して、フ
ィルターとしての機能を果たし得なくなり寿命が短い等
の問題があった。[Problems to be solved by the invention] By the way, in the conventional non-woven filter as described above, since the air permeability is low and the pressure loss is large, and since the filter is used for a long time in a hot and humid environment, the water content of the base material is high. There is a problem that the adhesive strength between the non-woven fabric and the non-woven fabric is deteriorated, the joint surfaces of the non-woven fabric are separated from each other, and the function as a filter cannot be achieved and the life is short.
本考案はかかる事情に鑑みなされたものであって、その
目的とするところは通気性に優れ、圧力損失が小さく、
しかもフィルター効果を損なうことなく、寿命の大幅な
延長を図れるようにした不織布製フィルターを提供する
にある。The present invention has been made in view of such circumstances, and its object is to have excellent breathability, small pressure loss,
Moreover, it is an object of the present invention to provide a non-woven fabric filter capable of achieving a significant extension of life without impairing the filter effect.
本考案に係る不織布製フィルターは、片面側に相互の間
に間隔を隔てて立毛域を形成した不織布層を複数枚重ね
て所定の間隔でニードリングを施し、複数の不織布層を
相互に一体化してなることを特徴とする。The non-woven fabric filter according to the present invention is formed by stacking a plurality of non-woven fabric layers on one side of which a napped area is formed with a space between each other and performing needling at a predetermined space to integrate the plurality of non-woven fabric layers with each other. It is characterized by
本考案にあってはこれによって、通気性が高くて圧力損
失が小さく、しかも高温度下で長時間使用しても繊維相
互の間の接着性が損なわれることがない。According to the present invention, this has high air permeability and small pressure loss, and the adhesiveness between the fibers is not impaired even when used at high temperature for a long time.
以下本考案をその実施例を示す図面に基づき具体的に説
明する。Hereinafter, the present invention will be specifically described with reference to the drawings showing an embodiment thereof.
第１図は本考案に係る不織布製フィルター（以下本考案
品という）の模式的平面図、第２図は第１図のII−II線
による模式的断面図であり、図中１，２は不織布製フィ
ルターを構成する不織布層を示している。各不織布層
１，２は構造上は実質的に同じであり、夫々不織布製の
基材1a,2a上に３〜５ｄ（デニール）のステープルファ
イバーを用いた不織布材1b,2bを200g/m2乃至300g/m2の
割合で重ね、ニードルパンチ機を用いてニードリングす
る。ニードルパンチ機としては３〜3.5mmのピッチでフ
ォークニードル（20番手乃至30番手）を植えた立毛タイ
プのニードル柄パンチ機を用いて直線状をなす畦立毛ル
ープを交互に１mm，３mmの間隔で規則的に配列形成させ
た不織布層１，２を形成する。ループ長は５mm〜８mm程
度である。なお畦立毛ループ領域の配列間隔は必要に応
じて設定すればよく、またその形成態様も直線に限らず
格子状，或いは点在的に形成してもよい。FIG. 1 is a schematic plan view of a non-woven fabric filter according to the present invention (hereinafter referred to as the present invention product), and FIG. 2 is a schematic cross-sectional view taken along the line II-II of FIG. The nonwoven fabric layer which comprises a nonwoven fabric filter is shown. The non-woven fabric layers 1 and 2 are substantially the same in structure, and the non-woven fabric substrates 1a and 2a are each provided with a non-woven fabric material 1b and 2b using staple fibers of 3 to 5d (denier) of 200 g / m 2 ~ 300g / m 2 It is piled up at a rate and needling is performed using a needle punch machine. As a needle punching machine, using a napped type needle handle punching machine in which fork needles (20th to 30th) are planted at a pitch of 3 to 3.5 mm, straight ridged hair loops are alternately arranged at intervals of 1 mm and 3 mm. Nonwoven fabric layers 1 and 2 that are regularly arranged are formed. The loop length is about 5 mm to 8 mm. The arrangement interval of the ridged hair loop regions may be set as necessary, and the formation mode thereof is not limited to a straight line, and may be formed in a lattice shape or in a scattered manner.
このような不織布層１，２を夫々その畦立毛ループを形
成した面を同じ側にして複数層（２〜３層）重ね合わせ
た後、一定間隔毎に点在的にニードリングし、このニー
ドリング域３にて重ね合わせた不織布層１，２相互の間
を基材1a,2a、不織布材1b,2bの繊維を絡ませて一体化す
る。A plurality of layers (2 to 3 layers) of such non-woven fabric layers 1 and 2 are superposed on each other with the surfaces on which the raised hair loops are formed on the same side, and then needling are scattered at regular intervals. The fibers of the base materials 1a and 2a and the non-woven fabric materials 1b and 2b are entwined and integrated between the non-woven fabric layers 1 and 2 that are overlapped in the ring region 3.
第３図は本考案の他の実施例を示す断面図であり、各不
織布層１，２の立毛域が施さされている面を向かい合わ
せにして重ね合わせ、同様に点在的に多数の個所にニー
ドリングを施して相互に一体化せしめて構成してある。FIG. 3 is a cross-sectional view showing another embodiment of the present invention, in which the non-woven fabric layers 1 and 2 are piled up so that the surfaces on which the napped areas are provided face each other, and similarly, a number of points are scattered. Needling is applied to the two and they are integrated with each other.
なお、上述の実施例は不織布層を２層とした構成につき
説明したが、これに限らず３層以上としてもよいことは
勿論である。In addition, although the above-mentioned embodiment explained the composition which made the nonwoven fabric layer into two layers, it is needless to say that it is not limited to this and may be three layers or more.
また各不織布層１，２としてはその片面にのみ立毛域を
形成した場合について説明したが、両面に立毛域を形成
したものを用いてもよい。Further, as each of the non-woven fabric layers 1 and 2, the case where the napped region is formed on only one surface thereof has been described, but a napped region formed on both surfaces may be used.
以上の如く本考案品にあっては夫々立毛域を形成した不
織布層を相互に重ね合わせてニードリングを施してある
から、不織布層相互の間には立毛域によって相互の間に
適正な隙間が形成され、通気性が高く圧力損失が小さく
て済み、しかもフィルターとしての機能を損なうことが
なく、悪環境下でも長時間にわたって機能を維持し得る
など本考案は優れた効果を奏するものである。As described above, in the present invention, since the non-woven fabric layers in which the napped areas are formed are overlapped with each other and needling is performed, an appropriate gap is provided between the non-woven fabric layers due to the napped areas. The present invention is excellent in that it is formed, has high air permeability, requires only a small pressure loss, does not impair the function as a filter, and can maintain the function for a long time even in a bad environment.
第１図は本考案品の模式的平面図、第２図は第１図のII
−II線による模式的断面図、第３図は本考案の他の実施
例を示す断面図である。 １，２…不織布層、1a,2a…基材 1b,2b…不織布材、３…ニードリング域FIG. 1 is a schematic plan view of the product of the present invention, and FIG. 2 is II of FIG.
Fig. 3 is a schematic sectional view taken along line -II, and Fig. 3 is a sectional view showing another embodiment of the present invention. 1, 2 ... Nonwoven layer, 1a, 2a ... Substrate 1b, 2b ... Nonwoven material, 3 ... Needling area
Claims (1)
形成した不織布層を複数枚重ねて所定の間隔でニードリ
ングを施し、複数の不織布層を相互に一体化してなるこ
とを特徴とする不織布製フィルター。1. A plurality of non-woven fabric layers each having a napped area formed on one side thereof at a predetermined interval to be overlapped with each other, and needling is performed at predetermined intervals to integrate the non-woven fabric layers with each other. A characteristic non-woven filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989071544U JPH0612808Y2 (en) | 1989-06-19 | 1989-06-19 | Nonwoven filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989071544U JPH0612808Y2 (en) | 1989-06-19 | 1989-06-19 | Nonwoven filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0311411U JPH0311411U (en) | 1991-02-05 |
| JPH0612808Y2 true JPH0612808Y2 (en) | 1994-04-06 |
Family
ID=31608671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989071544U Expired - Lifetime JPH0612808Y2 (en) | 1989-06-19 | 1989-06-19 | Nonwoven filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0612808Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5088324U (en) * | 1973-12-17 | 1975-07-26 | ||
| JPS5847217U (en) * | 1981-09-28 | 1983-03-30 | 小酒井 美智子 | Coin purse |
-
1989
- 1989-06-19 JP JP1989071544U patent/JPH0612808Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0311411U (en) | 1991-02-05 |
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