JPH01207461A - Stainless steel non woven fabric - Google Patents
Stainless steel non woven fabricInfo
- Publication number
- JPH01207461A JPH01207461A JP63032437A JP3243788A JPH01207461A JP H01207461 A JPH01207461 A JP H01207461A JP 63032437 A JP63032437 A JP 63032437A JP 3243788 A JP3243788 A JP 3243788A JP H01207461 A JPH01207461 A JP H01207461A
- Authority
- JP
- Japan
- Prior art keywords
- stainless steel
- nonwoven fabric
- section
- fiber
- non woven
- 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
- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 48
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 29
- 239000010935 stainless steel Substances 0.000 title claims abstract description 28
- 239000000835 fiber Substances 0.000 claims abstract description 52
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000005520 cutting process Methods 0.000 claims abstract description 11
- 238000010030 laminating Methods 0.000 claims abstract 2
- 238000003825 pressing Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 6
- 238000000465 moulding Methods 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 238000009960 carding Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 229910000915 Free machining steel Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Landscapes
- Nonwoven Fabrics (AREA)
Abstract
Description
に産業上の利用分野】
本発明は切削法で作られた、繊維軸方向断面においてそ
の表面が波形をなしたステンレス鋼長繊維よりなる不織
布に関するもので、更に詳しくは絡み具合がよく、強力
があり耐熱性が高く防錆性のある不織布に関するもので
ある。[Field of Industrial Application] The present invention relates to a nonwoven fabric made by a cutting method, which is made of long stainless steel fibers and whose surface is corrugated in the cross section in the axial direction of the fibers. This relates to nonwoven fabrics that have high heat resistance and rust prevention properties.
耐熱性の要求される静電バックフィルターや炉内壁材、
或いは耐熱ベルト材、耐熱クツション材として金属１１
１ｉｎを織ったりフェルト化したり焼結したりして使用
する用途は拡がりつ）ある。
しかし、これらの織物、不織布、焼結品は、短かい繊維
、即ちステーブルの金属繊維を紡績したりつＩツブにし
て加工するものが殆どであり、紡出したり引抜きしたり
して得られた連続Ｉ！Ａ維に捲縮を付与し、矧くカット
し、カード工程を通すという大変手の込んだ工程を通さ
なければならず、大幅に高価につくという問題がある。
また、太い径のｌａ維はステープルにする為のカット工
程やカード工程での設備摩耗等が速からたり、可撓性が
ないため均一なウェッブが得られなかったり、かつニー
ドリング等での不織布工程では絡み合いが悪いという問
題点があった。その原因として、金属繊維を作るに際し
て素材となる線をダイスに通して引き抜くことを繰り返
えし、線径を細くしているために、その表面は比較的平
滑な状態を保ち、Ｓ維層としたときに繊維間の引掛かり
が少なく絡み合（１に欠けると（Ｘうことが考えられた
。また、ｍ維径か細くなると強度が弱いとか、耐熱性、
特に耐熱強度保持率が低いというような問題点が指摘さ
れている。Electrostatic back filters and furnace inner wall materials that require heat resistance,
Alternatively, metal 11 can be used as a heat-resistant belt material or a heat-resistant cushion material.
There are a wide range of applications in which 1-inch pieces can be woven, felted, or sintered. However, most of these woven fabrics, nonwoven fabrics, and sintered products are made by spinning short fibers, that is, stable metal fibers, or processing them into I-tubes, and they are not obtained by spinning or drawing. Continuous I! The problem is that the A-fiber has to go through a very elaborate process of crimping it, cutting it into small pieces, and passing it through a carding process, making it significantly more expensive. In addition, with large diameter LA fibers, the equipment wears out quickly during the cutting process and carding process for making staples, and because it is not flexible, it is difficult to obtain a uniform web. There was a problem with poor intertwining during the process. The reason for this is that when making metal fibers, the wire used as the material is passed through a die and drawn repeatedly to make the wire diameter thinner, so the surface remains relatively smooth and the S fiber layer It was thought that when the fibers are not caught in each other and entangled (lack of 1), (
In particular, problems such as low heat resistance strength retention have been pointed out.
本発明は、切削法で作られた、ｌｌｎ軸方向断面、にお
いてその表面が波形をなしたステンレス鋼長繊維を不織
布化することによって得られる。本発明不織布に用いら
れるステンレス鋼長繊維は、ウェッブを構成したときに
、繊維間の絡み合い、或いは固定を強くするためにその
表面が波形をなしている繊維を用いる。
上記ｌｌｉ維は次の如くして作られる。即ち、素材とな
る線状体を走行させ、該線状体の表面に切削刃を当て線
状体表面を線状体の長手方向に切削する。この切り取っ
た微細繊維を複数本集束し、集束した繊維を適宜展開し
重ね合せてウェッブとする。該ウェッブは、一般的には
ニードルパンチ法により不織布化するが、その方法はス
テンレス鋼の長ｓ維をトウ状で撚がか）らないようにニ
ードリング機械に供給しニードリングを行う。トウは不
織布の必要な幅、或いは厚さによって供給本数を変えた
り重ね合せたりする。一般的には繊維の向きはニードリ
ング方向と平行の方向に供給するが、Ｓ維方向と別の方
向の強力は弱くなるため、不織布の使用時の強力が必要
な方向に二方向、三方向でトウを積層して供給するのが
望ましい。好ましくは一方向でニードリンク′し、得ら
れた不織布繊維方向を相互に交差して積層しプレス加工
もしくはフィニツシユニードリングを行うのがよい。
勿論フィニツシユニードリングしたものをプレス加工し
てもよい。積層枚数は必要な目付、厚みによって任意に
選定することができるが、先のニードリング時に使用し
た針よりも細い針をフィニツシユニードリング時に使用
する方が表面状態も良く、針穴も小さくなり強力の高い
不織布が得られる。
切削法で作られた、繊維軸方向断面においてその表面が
波形をなしたステンレス鋼長繊維の場合は波形表面同志
の引掛かりや摩擦力が大きく、ステンレス鋼の場合、そ
の、可撓性、柔軟性がよいために絡み合いが強くなる。
繊維の径は比較的太い径、即ち丸型断面に換輝して２０
ミクロン乃至８０ミクロンのものが好ましく、２０ミク
ロンより細いとニードリング時に切断が多く不織布の強
度も低く、かつ耐熱強度低下率が大きい。８０ミクロン
を越えるとｍ維の剛性が高く、針による絡み合いが弱く
なり、ニードリング時の針折れも多くなる。
Ｓ維表面を波形表面にすることによりプレス効果が上り
、焼結のように高温、高圧にすることなく薄い目付の高
いものが得易く、強度もアップした不織布が得られるこ
とも発見した。なお本発明はステンレス鋼に類似した快
削鋼やチタン及びチタン合金などにも利用し得る。The present invention is obtained by converting stainless steel long fibers, which are made by a cutting method and whose surface is corrugated in the lln axial cross section, into a nonwoven fabric. The stainless steel long fibers used in the nonwoven fabric of the present invention are fibers whose surfaces are corrugated in order to strengthen the intertwining or fixation between the fibers when forming the web. The above-mentioned LLI fiber is made as follows. That is, a linear body serving as a raw material is run, and a cutting blade is applied to the surface of the linear body to cut the surface of the linear body in the longitudinal direction of the linear body. A plurality of these cut fine fibers are bundled, and the bundled fibers are appropriately expanded and overlapped to form a web. The web is generally made into a non-woven fabric by a needle punch method, in which long stainless steel fibers are fed into a needling machine in a tow-like manner so as not to become twisted. The number of tows to be supplied is changed or stacked depending on the required width or thickness of the nonwoven fabric. Generally, fibers are fed in a direction parallel to the needling direction, but the strength in directions other than the S-fiber direction is weaker, so when using nonwoven fabrics, strength is required in two or three directions. It is preferable to supply the tow in layers. Preferably, the nonwoven fabric is need-linked in one direction, and then the obtained non-woven fabric fibers are laminated with their fiber directions crossing each other and then pressed or finish-undressed. Of course, it is also possible to press the finish-un-drilled material. The number of layers to be laminated can be arbitrarily selected depending on the required weight and thickness, but it is better to use a thinner needle during finish undoing than the needle used for the previous needling, as the surface condition will be better and the needle hole will be smaller. A highly strong nonwoven fabric can be obtained. In the case of long stainless steel fibers that are made by a cutting method and have a corrugated surface in the cross section in the fiber axis direction, there is a large amount of catching and friction between the corrugated surfaces. Because of their good sex, their intertwining becomes stronger. The diameter of the fiber is relatively thick, that is, it has a round cross section.
Preferably, the nonwoven fabric has a diameter of from 80 microns to 20 microns, and if it is thinner than 20 microns, the nonwoven fabric is likely to be cut during needling, and the strength of the nonwoven fabric is low, and the rate of decrease in heat resistance strength is large. When the diameter exceeds 80 microns, the rigidity of the m-fiber is high, the entanglement with the needle becomes weak, and the needle breaks frequently during needling. It was also discovered that by making the surface of the S fiber into a corrugated surface, the pressing effect is improved, and it is easy to obtain a thin nonwoven fabric with a high basis weight without the need for high temperatures and high pressures unlike sintering, and a nonwoven fabric with increased strength can be obtained. The present invention can also be applied to free-cutting steels similar to stainless steel, titanium, titanium alloys, and the like.
実施例１
ステンレス＠５ＵＳ−４３０より切削法で得られた平均
単糸が丸型断面換輝４５ミクロンの繊維軸方向断面にお
いてその表面が波形をなし繊維軸直角方向断面が三角形
又は台形を基本とした非対称形の繊維を、撚がか）らな
いようトウ状に捲きとり、三本引き揃えて＃２５のニー
ドリング針でブレニードリングした。得られた金属不織
布は目付２８０ｇ／尻、厚み１ｍｍで強力は縦方向２．
５ＫＩ／ ５α、横方向 ０．２に９／ ５ｃｍであっ
た。このニードリング金属不織布をニードル方向に縦と
槙交互に２枚づ）積層し、＃３２のニードリング針でニ
ードリングした。ｍられた金属不織布は目付９００ｇ／
ＴＩｔ、厚み２．５ｍｍの柔軟性のある不織布であり、
その引張強力は縦方向１２／（ｇ／ ５（ＩＪ、横方向
１３Ｋｇ１５ＣＭであった。
実施例２
実施例１で得られた金属不織布をロールプレスで常温に
て２Ｋｇ／ｃｉの加圧を行った。表面の滑らかな厚み１
．７ｍｍの不織布が得られた。引張強力は縦方向１３．
５ＫＩ／ ５ｃｔｎ 、横方向１４．５に’ｊ／ ５ｃ
ｍであった。 ゛
比較例１
実施例１で使用したと同じトウを長さ２５ｍ１１１にカ
ットし、カードを通してウェッブを得た。ウェッブは絡
み合いの少ない状態であり均一なものは得難かった。該
ウェッブを＃３２のニードリング針にニードリングを行
ってステンレス鋼不織布を得た。
ステンレス鋼不織布は目付９７０ｇ／尻、厚み２，６ｃ
ｍｍであったが、その引張強力は縦方向４に９／ ５ｒ
Ｊｎ。
横方向２．５ｈ／ ５ａｎの弱いものであった。
比較例２
市販の８ミクロンのステンレス鋼トウを引き揃え実施例
１と同様に加工し目付９４０ｇ／ ｒｒｌの金属不織布
を得た。この厚みは２．７ｆｆｆｉであり、引張強力は
縦方向６８１／ ５ｃＩＩ、横方向４ｂ／ ５ｃ、で強
力も弱く、かつフィニツシユニードリング時の針折れが
多かった。
比較例３
市販の断面径１２ミクロンのステンレス鋼繊維よりなる
２００９／ｒｒｔのウェッブ５枚を積層し、＃３２の針
でニードリングを行った。得られた不織布は目付９５０
ｇ／ ＴＩｔ、厚み３．６間の不織布であった。
引張強力は縦５Ｋｇ１５ｒｒｔ、横２．３８９／ ５（
Ｊと強力は低かった。これを実施例２と同条件でプレス
加工したが、経時とともに厚みが回復し、強力も上らな
かった。
Ｋ発明の効果］
本光明ステンレス鋼不織布は、不織布を構成するステン
レス鋼長繊維が、その表面に波形形状を有する実型断面
のために、ダイスに通して得られた金属繊維に見るよう
な平滑さはなく、繊維Ｎをニードルパンチしたときに押
し込まれた繊維の表面の前記波形部分が隣接するｆｉＡ
維の同部分と互いに係合し合うことによりＩｔａ維同士
が互いに交絡することになり、絡み合いの度合の高い柔
軟性も良い不織布を得ることができる。
本発明ステンレス鋼不織布は、長４１ｉ、ＩＩＩである
ためと１！維単糸が太いため強力があり、かつ長時間連
続耐熱性も高く、ステンレス鋼のため耐蝕性もある不織
布を得ることができる。Example 1 An average single yarn obtained by a cutting method from stainless steel @ 5US-430 had a round cross-section, 45 microns, and its surface was waveform in the cross section in the fiber axis direction, and the cross section in the direction perpendicular to the fiber axis was basically triangular or trapezoidal. The resulting asymmetrical fibers were rolled up into a tow shape to avoid twisting, and three fibers were pulled together and blended with #25 needling needles. The obtained metal nonwoven fabric has a basis weight of 280 g/bottom, a thickness of 1 mm, and a strength of 2.2 mm in the longitudinal direction.
5KI/5α, lateral direction 0.2 to 9/5 cm. Two of these needled metal nonwoven fabrics were laminated vertically and vertically alternately in the needle direction, and needled with #32 needling needles. The molded metal non-woven fabric has a basis weight of 900g/
TIt is a flexible non-woven fabric with a thickness of 2.5 mm,
Its tensile strength was 12/(g/5 (IJ) in the longitudinal direction, 13 kg/15 CM in the transverse direction. Example 2 The metal nonwoven fabric obtained in Example 1 was pressurized at 2 kg/ci at room temperature with a roll press. .Smooth surface thickness 1
．． A 7 mm nonwoven fabric was obtained. Tensile strength is 13.
5KI/5ctn, horizontal 14.5'j/5c
It was m. Comparative Example 1 The same tow used in Example 1 was cut to a length of 25 m111 and passed through a card to obtain a web. The web was in a state with little entanglement, and it was difficult to obtain a uniform web. The web was needled with a #32 needling needle to obtain a stainless steel nonwoven fabric. Stainless steel non-woven fabric has a basis weight of 970g/end, thickness 2.6c
mm, but its tensile strength was 4/9/5 r in the longitudinal direction.
Jn. It was weak at 2.5h/5an in the lateral direction. Comparative Example 2 Commercially available 8 micron stainless steel tows were aligned and processed in the same manner as in Example 1 to obtain a metal nonwoven fabric with a basis weight of 940 g/rrl. The thickness was 2.7 fffi, and the tensile strength was 681/5 cII in the longitudinal direction and 4 b/5 c in the transverse direction, and the tensile strength was weak, and the needles often broke during finish unit idling. Comparative Example 3 Five commercially available webs of 2009/rrt made of stainless steel fibers with a cross-sectional diameter of 12 microns were laminated and needled with a #32 needle. The obtained nonwoven fabric has a basis weight of 950
The nonwoven fabric had a thickness of 3.6 g/TIt and a thickness of 3.6. Tensile strength is 5Kg15rrt vertically, 2.389/5 horizontally (
J and strong were low. This was pressed under the same conditions as in Example 2, but the thickness recovered over time and the strength did not increase. Effects of the Invention] The present Komei stainless steel nonwoven fabric has a real cross section in which the long stainless steel fibers constituting the nonwoven fabric have a wavy shape on the surface, so that the nonwoven fabric has a smooth surface similar to that seen in metal fibers obtained by passing it through a die. Instead, when the fiber N is needle-punched, the waveform portion on the surface of the fiber pushed into the adjacent fiA
By engaging with the same portions of the fibers, the Ita fibers become intertwined with each other, making it possible to obtain a nonwoven fabric with a high degree of entanglement and good flexibility. The stainless steel nonwoven fabric of the present invention has a length of 41i, III and 1! It is possible to obtain a nonwoven fabric that is strong because the fibers are thick, has high continuous heat resistance for a long time, and has corrosion resistance because it is made of stainless steel.
図面は本発明不織布を構成する繊維を示すもので、第１
図は側面図、第２図は繊維軸直角方向断面図である。
第 １ 図The drawing shows the fibers constituting the nonwoven fabric of the present invention.
The figure is a side view, and FIG. 2 is a sectional view in the direction perpendicular to the fiber axis. Figure 1
Claims (6)
面が波形をなしたステンレス鋼長繊維を集束してなる繊
維層内で、繊維層を構成するステンレス鋼長繊維の波形
表面が互いに係合し、前記係合した部分においてステン
レス鋼長繊維が交絡されていることを特徴とするステン
レス鋼不織布。1. In a fiber layer made by a cutting method and made of a bundle of stainless steel long fibers whose surfaces are corrugated in the cross section in the fiber axis direction, the corrugated surfaces of the stainless steel long fibers constituting the fiber layer engage with each other. . A stainless steel nonwoven fabric, characterized in that stainless steel long fibers are intertwined in the engaged portion.
レス鋼不織布。2. A stainless steel nonwoven fabric formed by laminating a plurality of nonwoven fabrics according to claim 1.
高密度化されたステンレス鋼不織布。3. A highly densified stainless steel nonwoven fabric obtained by pressing the nonwoven fabric according to claim 1 or 2.
繊維が、ニードリングにより、互いに係合交絡している
請求項１乃至３記載のステンレス鋼不織布。4. The stainless steel nonwoven fabric according to any one of claims 1 to 3, wherein the fibers having a corrugated surface according to claim 1 constituting the fiber layer are engaged and intertwined with each other by needling.
に沿って刃物により切削して得られた、波形表面を有す
るものである請求項１乃至４記載のステンレス鋼不織布
。5. 5. The stainless steel nonwoven fabric according to claim 1, wherein the stainless steel long fibers have a corrugated surface obtained by cutting the surface of a wire rod along its longitudinal direction with a knife.
ロン以上８０ミクロン以下に相当する太さである請求項
１乃至５記載のテンレス鋼不織布。6. 6. The stainless steel nonwoven fabric according to claim 1, wherein the stainless steel long fibers have an average thickness of 20 microns or more and 80 microns or less in terms of a round cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63032437A JP2651408B2 (en) | 1988-02-15 | 1988-02-15 | Stainless steel nonwoven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63032437A JP2651408B2 (en) | 1988-02-15 | 1988-02-15 | Stainless steel nonwoven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01207461A true JPH01207461A (en) | 1989-08-21 |
| JP2651408B2 JP2651408B2 (en) | 1997-09-10 |
Family
ID=12358937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63032437A Expired - Lifetime JP2651408B2 (en) | 1988-02-15 | 1988-02-15 | Stainless steel nonwoven |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2651408B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08100627A (en) * | 1994-09-30 | 1996-04-16 | Akira Yanagisawa | Sound absorbing-muffling stainless steel fiber sheet for automobile muffler |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4920064A (en) * | 1972-06-16 | 1974-02-22 | ||
| JPS4970294U (en) * | 1972-10-03 | 1974-06-19 | ||
| JPS61172999U (en) * | 1985-04-15 | 1986-10-27 |
-
1988
- 1988-02-15 JP JP63032437A patent/JP2651408B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4920064A (en) * | 1972-06-16 | 1974-02-22 | ||
| JPS4970294U (en) * | 1972-10-03 | 1974-06-19 | ||
| JPS61172999U (en) * | 1985-04-15 | 1986-10-27 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08100627A (en) * | 1994-09-30 | 1996-04-16 | Akira Yanagisawa | Sound absorbing-muffling stainless steel fiber sheet for automobile muffler |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2651408B2 (en) | 1997-09-10 |
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