JPS63135555A - Resin impregnation treatment of fiber bundle - Google Patents
Resin impregnation treatment of fiber bundleInfo
- Publication number
- JPS63135555A JPS63135555A JP61275175A JP27517586A JPS63135555A JP S63135555 A JPS63135555 A JP S63135555A JP 61275175 A JP61275175 A JP 61275175A JP 27517586 A JP27517586 A JP 27517586A JP S63135555 A JPS63135555 A JP S63135555A
- Authority
- JP
- Japan
- Prior art keywords
- fiber bundle
- resin
- liquid
- fiber
- fibers
- 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.)
- Pending
Links
- 239000000835 fiber Substances 0.000 title claims description 69
- 239000011347 resin Substances 0.000 title claims description 55
- 229920005989 resin Polymers 0.000 title claims description 55
- 238000005470 impregnation Methods 0.000 title description 13
- 239000007788 liquid Substances 0.000 claims description 38
- 238000000034 method Methods 0.000 claims description 20
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 7
- 239000004917 carbon fiber Substances 0.000 claims description 7
- 239000003365 glass fiber Substances 0.000 claims description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- 101100406879 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) par-2 gene Proteins 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
- D06B3/20—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics with means to improve the circulation of the treating material on the surface of the fabric
- D06B3/205—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics with means to improve the circulation of the treating material on the surface of the fabric by vibrating
- D06B3/206—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics with means to improve the circulation of the treating material on the surface of the fabric by vibrating the textile material
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は炭素繊維やガラス繊維などのフィラメント状繊
維束に対し液状樹脂を均一に付与する含浸処理方法に関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an impregnation treatment method for uniformly applying a liquid resin to filamentary fiber bundles such as carbon fibers and glass fibers.
繊維強化樹脂を加工する方法の一つにフィランメト・ワ
インディング法がある。このフィランメト・ワインディ
ング法には、補強用繊維であるフィラメントの炭素繊維
やガラス繊維などの繊維束（ロービング、トウ等）に、
あらかじめ液状の樹脂を均一に含浸させる工程がある。One of the methods for processing fiber-reinforced resin is the filammet winding method. In this filammet winding method, fiber bundles (rovings, tows, etc.) of carbon fibers, glass fibers, etc., which are reinforcing fibers, are
There is a step of uniformly impregnating liquid resin in advance.
従来、このように繊維束に液状樹脂を含浸させる方法に
は、樹脂液浴槽に繊維束を走行浸漬させるディップ方式
や、或いは樹脂液浴槽に回転ドラムを一部浸漬させ、そ
のドラムの露出表面に繊維束を接触走行させつつドラム
表面の樹脂を塗布させるドラム式等が知られている。Conventionally, methods for impregnating fiber bundles with liquid resin include a dipping method in which the fiber bundles are run and immersed in a resin liquid bath, or a rotating drum is partially immersed in a resin liquid bath and the exposed surface of the drum is soaked. A drum type is known in which resin is coated on the drum surface while the fiber bundle is run in contact with the drum.
しかし、これらの方法では、浴槽に貯溜された大容量の
樹脂液を含浸させるため、繊維束にはいったん大過剰の
樹脂液が付着し、その大過剰の樹脂液を工程中でスクイ
ズすることによって除去することが必要になる。このた
め含浸速度の向上には限界があり、生産性の向上を阻ん
でいた。また、上記スクイズ工程によって繊維束から毛
羽などが脱落するため、その毛羽が樹脂液を汚染して再
び繊維束に付着し、製品の品質低下を招く原因にもなっ
ていた。However, in these methods, the fiber bundle is impregnated with a large amount of resin liquid stored in a bathtub, so a large excess of resin liquid adheres to the fiber bundle, and the large excess resin liquid is squeezed during the process. It will be necessary to remove it. For this reason, there is a limit to the improvement of the impregnation rate, which hinders the improvement of productivity. In addition, fluff and the like fall off from the fiber bundle during the squeezing process, which contaminates the resin liquid and adheres to the fiber bundle again, causing a deterioration in the quality of the product.
また、大容量の樹脂液中に繊維束を浸漬するため、繊維
束に空気が閉じ込められられやすくなり、それがボイド
となって製品欠陥を招くこともあった。Furthermore, since the fiber bundles are immersed in a large volume of resin liquid, air is likely to be trapped in the fiber bundles, which may form voids and cause product defects.
また、液状樹脂が特に反応性であって、空気との接触に
よって変化するようなものの場合には、上述した液状樹
脂を浴槽に長時間貯溜するディップ式やドラム式等の方
法は、全く使用ができないという難点があった。Furthermore, if the liquid resin is particularly reactive and changes when it comes into contact with air, the above-mentioned methods such as the dip method or drum method, in which the liquid resin is stored in a bathtub for a long time, cannot be used at all. The problem was that it couldn't be done.
本発明の目的は、上述のような従来技術の欠点を解消し
、含浸速度の向上によって生産性を向上するとともに、
毛羽立ちやボイドの発生を起こりにくくする繊維束の樹
脂含浸処理方法を提供することにある。The purpose of the present invention is to eliminate the drawbacks of the prior art as described above, improve productivity by increasing the impregnation rate, and
It is an object of the present invention to provide a method for impregnating a fiber bundle with a resin, which makes it difficult for fuzzing and voids to occur.
上記目的を達成する本発明は、多数本のフィラメント状
繊維を束ねた繊維束を走行させつつ、その繊維束に適量
に調整された液状樹脂を付与したのち、滑らかな曲面を
有する擦過体に接触させつつ、その擦過体を振動させる
ことを特徴とするものである。The present invention achieves the above object by running a fiber bundle made up of a large number of filamentous fibers, applying an appropriately adjusted amount of liquid resin to the fiber bundle, and then contacting the fiber bundle with a rubbing body having a smooth curved surface. It is characterized by vibrating the rubbing body while
本発明において繊維束とは、ロービング状、トウ状など
のように多数本のフィラメント状繊維を集束した状態の
ものをいう。この繊維束を構成する繊維素材としては、
炭素繊維、ガラス繊維、ボロン繊維、ポリアラミド繊維
、ナイロン繊維、ポリエステル繊維等いずれも適用可能
であるが、特に曲げに対して弱く毛羽立ちやすい炭素繊
維、ガラス繊維等に対して有効である。In the present invention, the fiber bundle refers to a state in which a large number of filamentous fibers are bundled together in a roving shape, tow shape, or the like. The fiber materials that make up this fiber bundle are:
Carbon fibers, glass fibers, boron fibers, polyaramid fibers, nylon fibers, polyester fibers, etc. can all be used, but it is particularly effective for carbon fibers, glass fibers, etc. that are weak against bending and tend to fluff.
本発明において、上記繊維束に対して液状樹脂を付与す
るときは、従来のように樹脂液をいったん大過剰に付与
するようなことはせず、繊維束の大きさに応じ予め調整
された適量だけを付与するようにすることが必要である
。このような調整された樹脂液を付与するには、樹脂デ
ィスペンサーを繊維束に対向するように配置し、そのノ
ズルから一定量ずつを繊維束に向けて計量吐出するよう
にするとよい。In the present invention, when applying liquid resin to the fiber bundle, the resin liquid is not applied in large excess as in the past, but in an appropriate amount adjusted in advance according to the size of the fiber bundle. It is necessary to give only the following. In order to apply such an adjusted resin liquid, it is preferable to arrange a resin dispenser so as to face the fiber bundle, and to dispense a fixed amount of resin liquid from its nozzle toward the fiber bundle.
上述のように所定量の樹脂液が付与された繊維束は、滑
らかな曲面を有する擦過体に接触させつつ走行させる。The fiber bundle to which a predetermined amount of resin liquid has been applied as described above is caused to travel while being brought into contact with a rubbing body having a smooth curved surface.
このときの擦過体としては、円柱状または円筒状のロー
ルバー、円弧状の曲面を有するプレート、あるいはこれ
らの組み合わせ等が好ましく使用される。また、この擦
過体は一つだけではなく、繊維束の走行方向に沿って多
段に設置するようにすることが好ましい。As the abrasive body at this time, a cylindrical or cylindrical roll bar, a plate having an arcuate curved surface, or a combination thereof is preferably used. Moreover, it is preferable that the rubbing body is not only one but is installed in multiple stages along the running direction of the fiber bundle.
また、この多段に設置する賜金には、繊維束の片面だけ
に接触させるのではなく、繊維束の両面に交互に接触さ
せるようにすることが望ましい。Furthermore, it is desirable that the multi-layered fibers should not be brought into contact with only one side of the fiber bundle, but alternately brought into contact with both sides of the fiber bundle.
上述した擦過体に対する繊維束の接触には、極度の屈曲
を与えることは好ましくない。すなわち、繊維束の擦過
体に対する入方向と出方向とがなす角度を小さくし、こ
の角度を大きくする接触であってはならない。本発明を
満足させるような上記角度としては、実質的に００以上
であって且つ４５°以内であるようにすることが好まし
い。この角度が上記４５°を大幅に超え、顕著な屈曲が
与えられる場合には、繊維束に強い扱きが与えられるた
め、特に炭素繊維やガラス繊維などのように曲げに対し
て脆い繊維では毛羽立ちを多くするようになる。It is not preferable that the fiber bundle be brought into contact with the above-mentioned abrasion body to be extremely bent. In other words, the angle formed between the direction in which the fiber bundle enters and the direction in which it exits the abrasive body should be small, and the contact should not increase this angle. The above-mentioned angle that satisfies the present invention is preferably substantially 00 or more and 45° or less. If this angle significantly exceeds the above 45° and a significant bend is applied, the fiber bundle will be treated strongly, so fibers that are fragile to bending, such as carbon fibers and glass fibers, will not become fluffy. I'll start doing more.
本発明では、さらに繊維束を上記擦過体に接触させてい
る間んに、微小な振動を繊維束に与えることが必要であ
る。この振動はどうような手段によって与えてもよいが
、好ましくは電磁式振動子や空気式振動子を利用するの
がよい。In the present invention, it is further necessary to apply minute vibrations to the fiber bundle while the fiber bundle is brought into contact with the abrasive body. This vibration may be applied by any means, but it is preferable to use an electromagnetic vibrator or a pneumatic vibrator.
また、その振動数としては、５００〜６０００サイクル
／分の範囲であることが好ましい。Further, the frequency thereof is preferably in the range of 500 to 6000 cycles/min.
このような擦過体による張力付与と同時に振動が付与さ
れることによって、繊維束を構成する個々のフィラメン
ト繊維が適度に分散し、これら分散したフィラメント繊
維間に前工程で付与された樹脂液が含浸されやすくなる
。すなわち、樹脂液の含浸速度が向上する上に、軽い張
力で含浸を行うから繊維束に毛羽立ちが起こらない。ま
た、樹脂液が振動によって繊維束の中に浸透するとき、
繊維束に内包された空気が追い出されるため、処理後の
繊維束にボイドを含むことがない。By applying vibration at the same time as tension is applied by such a rubbing body, the individual filament fibers that make up the fiber bundle are dispersed appropriately, and the resin liquid applied in the previous process is impregnated between these dispersed filament fibers. become more susceptible to That is, the impregnation speed of the resin liquid is improved, and since the impregnation is carried out with a light tension, the fiber bundle does not become fluffy. Also, when the resin liquid permeates into the fiber bundle due to vibration,
Since the air contained in the fiber bundle is expelled, the treated fiber bundle does not contain any voids.
また、本発明における樹脂液の付与は、従来のように大
過剰のものを与えるようにはせず、予め設定された必要
量だけを与えるようにしているため、付与前の樹脂液が
常時空気に曝されることがなくなる。そのため、樹脂液
が反応性のものであっても安定した含浸処理を行うこと
ができるようになる。In addition, in applying the resin liquid in the present invention, only a preset required amount is applied instead of applying a large excess as in the past, so that the resin liquid is always air-filled before being applied. No more exposure to. Therefore, even if the resin liquid is reactive, stable impregnation treatment can be performed.
第１図は本発明の樹脂含浸処理法の一例を示すものであ
る。FIG. 1 shows an example of the resin impregnation treatment method of the present invention.
第１図において、Ｆは炭素繊維、ガラス繊維等の被処理
用の繊維束であり、図の右から左側へ矢印のように一定
速度で供給されるようになっている。この繊維束Ｆの走
行過程において、まず樹脂ディスペンサー１により予め
定められた所定量の液状樹脂が付与される。次いで、こ
の液状樹脂が付与された繊維束Ｆは、ロールパー ２、
−、 ２が多段に設置された擦過体を通過するようにな
っている。In FIG. 1, F is a fiber bundle to be processed, such as carbon fiber or glass fiber, which is supplied at a constant speed from the right to the left in the figure as indicated by the arrow. During the traveling process of the fiber bundle F, first, a predetermined amount of liquid resin is applied by the resin dispenser 1. Next, the fiber bundle F to which this liquid resin has been applied is subjected to a roll par 2,
-, 2 pass through abrasive bodies installed in multiple stages.
多数本のロールパー２、−、 ２は、上下に配置した２
枚の保持板３，３にそれぞれ所定間隔で固定され、かつ
これら保持板３，３はさらにスプリング４．４を介して
それぞれ上下のベース５．５に支持されている。このロ
ールパー２は、回転、非回転を問わないが、好ましくは
この実施例のように非回転状に固定されていること方が
望ましい。のようなロールパー２を固定した保持板３の
一方（第１図の実施例では下面側の保持板３）には電磁
式の加振器６が取り付けられ、保持板３およびロールパ
ー２に対して振動を与えるようになっている。A large number of roll pars 2, -, 2 are arranged above and below.
It is fixed to two retaining plates 3, 3 at predetermined intervals, and these retaining plates 3, 3 are further supported by upper and lower bases 5.5, respectively, via springs 4.4. The roll par 2 may be rotatable or non-rotatable, but it is preferably fixed in a non-rotatable manner as in this embodiment. An electromagnetic vibrator 6 is attached to one side of the holding plate 3 to which the roll parr 2 is fixed (in the embodiment shown in FIG. 1, the lower holding plate 3). It is designed to give vibrations.
この加振器６は、第１図の実施例では一方の保持板だけ
に対してであるが、第２図の実施例のように、上側の保
持板３に取り付けるようにしてもよい。また、擦過体は
ロールパーに限らず、第３図の実施例のように円弧状の
曲面を持ったプレート２゛にしてもよい。このプレート
２”の場合には、プレート２゛の前後にロールパー２，
２を設け、繊維束Ｆをプレート２゛に対し十分に接触さ
せるようにすることがが望ましい。Although this vibrator 6 is attached to only one holding plate in the embodiment shown in FIG. 1, it may be attached to the upper holding plate 3 as in the embodiment shown in FIG. Further, the abrasive body is not limited to a roll par, but may be a plate 2' having an arcuate curved surface as in the embodiment shown in FIG. In the case of this plate 2'', there are roll pars 2 on the front and back of the plate 2''.
2, so that the fiber bundle F is brought into sufficient contact with the plate 2'.
樹脂ディスペンサー１により樹脂液が付与された繊維束
Ｆは、上述のように多段状のロールパー２ 、−、 ２
を通過するとき、或いはプレート２° とロールパー２
とを通過するとき、繊維束表面の下面と上面とを交互に
接触させつつ軽い張力を与えられ、また同時に加振器６
から微小な振動を与えられる。このようなロールパー２
又はプレート２”による張力付与と加振器６による振動
付与とによって、繊維束Ｆは個々のフィラメント繊維が
微小に振動しながら適度の拡張を行い、この拡張したフ
ィラメント繊維間に樹脂液を深く含浸させていく。The fiber bundle F to which the resin liquid has been applied by the resin dispenser 1 is transferred to the multi-stage roll pars 2, -, 2 as described above.
or plate 2° and roll par 2
When passing through the fiber bundle, a light tension is applied while alternately contacting the lower and upper surfaces of the fiber bundle surface, and at the same time, the vibrator 6
A minute vibration is applied from the Role par 2 like this
Alternatively, by applying tension by the plate 2'' and applying vibration by the vibrator 6, the fiber bundle F expands to an appropriate degree while each filament fiber vibrates minutely, and the resin liquid is deeply impregnated between the expanded filament fibers. I'll let you do it.
したがって、上記作用によって樹脂液の含浸速度が向上
し、また毛羽の発生やボイドの発生のない含浸を行うこ
とができる。Therefore, due to the above-mentioned action, the impregnation speed of the resin liquid can be improved, and impregnation can be performed without generating fuzz or voids.
上述したように本発明では、繊維束に適量に調整された
液状樹脂を付与し、それを滑らかな曲面を有する擦過体
に軽く接触させつつ、その擦過体を振動させるようにす
るため、従来の大過剰の樹脂液を付与するもののように
、過剰樹脂分を取り除くための過度の扱きが不要になる
。As described above, in the present invention, an appropriately adjusted amount of liquid resin is applied to the fiber bundle, and the abrasive body is vibrated while being brought into light contact with the abrasive body having a smooth curved surface. There is no need for excessive handling to remove the excess resin as in the case of applying a large excess of resin liquid.
したがって、毛羽等を発生することがなくなり、しかも
適量に付与した液状樹脂を軽度の張力付与と振動とを利
用して繊維束中に浸透させるため含浸速度を向上し、生
産性を向上することができる。また、上記含浸操作によ
り、繊維束中に抱き込まれた空気は追い出されるため、
ボイドのない樹脂含浸繊維束を得ることができる。Therefore, the generation of fuzz, etc. is eliminated, and since the liquid resin applied in an appropriate amount is permeated into the fiber bundle using slight tension and vibration, the impregnation speed can be improved, and productivity can be improved. can. In addition, as the air trapped in the fiber bundle is expelled by the above impregnation operation,
A void-free resin-impregnated fiber bundle can be obtained.
また、樹脂液の付与を予め設定された必要量だけに調整
して行い、樹脂を絶えず空気に曝す状態にしないため、
樹脂液が反応性のものであっても安定した含浸処理を行
うことができるようになる。In addition, since the application of resin liquid is adjusted to only the required amount set in advance, the resin is not constantly exposed to air.
Even if the resin liquid is reactive, stable impregnation treatment can be performed.
第１図は本発明を実施するための装置の概略図、第２図
および第３図はそれぞれ他の実施例による装置の概略図
である。
Ｆ・・・繊維束、 ■・・・樹脂ディスペンサー、２
・・・ロールバー（擦過体）、 ２゛・・・プレート（
擦過体）、 ６・・・加振器。FIG. 1 is a schematic diagram of an apparatus for carrying out the invention, and FIGS. 2 and 3 are schematic diagrams of apparatuses according to other embodiments. F...Fiber bundle, ■...Resin dispenser, 2
...Roll bar (rubbing body), 2゛...Plate (
abrasive body), 6... vibrator.
Claims (4)
行させつつ、その繊維束に適量に調整された液状樹脂を
付与したのち、滑らかな曲面を有する擦過体に接触させ
つつ、その擦過体を振動させることを特徴とする繊維束
の樹脂含浸処理方法。(1) While running a fiber bundle made up of a large number of filamentous fibers, apply an appropriate amount of liquid resin to the fiber bundle, and then bring it into contact with a rubbing body having a smooth curved surface. A method for impregnating a fiber bundle with a resin, the method comprising vibrating the fiber bundle with a resin.
請求の範囲第１項記載の繊維束の樹脂含浸処理方法。(2) A method for impregnating a fiber bundle with a resin according to claim 1, wherein the fiber bundle is made of carbon fiber or glass fiber.
載の繊維束の樹脂含浸処理方法。(3) A method for impregnating a fiber bundle with a resin according to claim 1, wherein the liquid resin is reactive.
により液状樹脂の付与を行う特許請求の範囲第１項記載
の繊維束の樹脂含浸処理方法。(4) A method for impregnating a fiber bundle with a resin according to claim 1, wherein the liquid resin is applied using a resin dispenser that discharges a predetermined amount of the liquid resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61275175A JPS63135555A (en) | 1986-11-20 | 1986-11-20 | Resin impregnation treatment of fiber bundle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61275175A JPS63135555A (en) | 1986-11-20 | 1986-11-20 | Resin impregnation treatment of fiber bundle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63135555A true JPS63135555A (en) | 1988-06-07 |
Family
ID=17551712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61275175A Pending JPS63135555A (en) | 1986-11-20 | 1986-11-20 | Resin impregnation treatment of fiber bundle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63135555A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014513638A (en) * | 2011-03-11 | 2014-06-05 | サーモプラスト コンポジット ゲーエムベーハー | Method and apparatus for producing a composite fiber material in the form of a polymer impregnated fiber strip |
-
1986
- 1986-11-20 JP JP61275175A patent/JPS63135555A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014513638A (en) * | 2011-03-11 | 2014-06-05 | サーモプラスト コンポジット ゲーエムベーハー | Method and apparatus for producing a composite fiber material in the form of a polymer impregnated fiber strip |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2609320A (en) | Method of making flexible unwoven fabric | |
| KR940006977B1 (en) | Method of coating fibers with particles by fluidization in a gas | |
| US3779844A (en) | Method and apparatus for improving the tensile strength of a multifilament glass strand | |
| JPH0325540B2 (en) | ||
| JPS63135555A (en) | Resin impregnation treatment of fiber bundle | |
| WO2018008431A1 (en) | Method and device for producing pultruded material | |
| US1797393A (en) | Apparatus for preparing textile strands | |
| US3779207A (en) | Apparatus for impregnating and coating fibrous strands | |
| JPS61275438A (en) | Method for widening fiber bundle | |
| JP2002339222A (en) | Method for applying sizing agent to carbon fiber strand and apparatus therefor | |
| JPS58180658A (en) | Apparatus for producing nonwoven base fabric for composite molding | |
| ATE27621T1 (en) | METHOD AND DEVICE FOR MANUFACTURING A COVERED YARN. | |
| US3653948A (en) | Process and apparatus for compressing string-forming polymer substances by mechanical vibration | |
| JPS581725A (en) | Continuous production of paralleled fiber bundle sheet | |
| US3657032A (en) | Method for continuously manufacturing reinforced plastic board | |
| JPH1036531A (en) | Ultrasonic resin impregnation and its apparatus | |
| US2704725A (en) | Method of making pile-surfaced sheet material | |
| JP3702535B2 (en) | Prepreg manufacturing method and apparatus | |
| JP2023066505A (en) | Width control method for reinforced fiber bundle | |
| US3209724A (en) | Coating apparatus | |
| JPH01139837A (en) | Continuous widening of fiber bundle | |
| JPH01207467A (en) | Sizing agent imparting device of carbon fiber | |
| JPH08108487A (en) | Manufacture of frp cylindrical body and its device | |
| JPS6053669B2 (en) | Fiber coating method and device | |
| JPH04123222U (en) | Resin coating equipment for optical fibers or their aggregates |