JPS59228036A - Width enlarging method of fiber bundle - Google Patents

Width enlarging method of fiber bundle

Info

Publication number
JPS59228036A
JPS59228036A JP58103762A JP10376283A JPS59228036A JP S59228036 A JPS59228036 A JP S59228036A JP 58103762 A JP58103762 A JP 58103762A JP 10376283 A JP10376283 A JP 10376283A JP S59228036 A JPS59228036 A JP S59228036A
Authority
JP
Japan
Prior art keywords
fiber bundle
fiber
roll
curved surface
widening
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
Application number
JP58103762A
Other languages
Japanese (ja)
Other versions
JPH0333814B2 (en
Inventor
史朗 浅田
角田 午郎
誠 山田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Rayon Co Ltd
Original Assignee
Mitsubishi Rayon Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Rayon Co Ltd filed Critical Mitsubishi Rayon Co Ltd
Priority to JP58103762A priority Critical patent/JPS59228036A/en
Publication of JPS59228036A publication Critical patent/JPS59228036A/en
Publication of JPH0333814B2 publication Critical patent/JPH0333814B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Nonwoven Fabrics (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (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】 本発明は繊維束の拡幅又は開繊に係わり、一方向引き揃
え繊維束のシート状テープを均一にかつ毛羽等の発生を
少な(連続的に製造する方法に係わる。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the widening or opening of fiber bundles, and relates to a method for manufacturing a sheet-like tape of unidirectionally aligned fiber bundles uniformly and continuously with less occurrence of fluff.

現在、炭素繊維、ガラス繊維、全芳香族ポリアミド繊維
等の補強用繊維束テープに、エポキシ樹脂、不飽和ポリ
エステル樹脂等を始めとする熱硬化性樹脂を含浸せしめ
たプリプレグは板ばねやハニカム構造材等の工業材料、
ある(・は釣竿、ゴルフシャフト、バドミントンシャフ
ト等のスポーツ、レジャー用機材の成形材料として広(
利用されている。さらに近年は航空機材料、自動車用素
材、医療用素材にプリプレグを用いた成形材料を利用す
る検討が多く行なわれ一部で実用化されている。このよ
うなプリプレグの使用用途の多様化に伴い、特に精度の
要求される分野においては補強用繊維の整合性、目付分
布の均一性、樹脂含有率の均一性、プリプレグの幅方向
並びに長さ方向の厚みの均一性と言ったプリプレグの均
質性が要求されると同時に薄いプリプレグすなわち1プ
ライの成形厚みが0.1朋以下となるプリプレグへの要
求も増加してさている。均一でしかも薄いプリプレグを
作るために通常とられる手段は細い繊維束あるいはフィ
ラメント数の少lよい繊維束を一方向に引き揃え、樹脂
含浸後加熱ローラーで押し拡げブリグレグ化する方法、
あるいは種々の開繊手段によって繊維束を拡げて一方向
に引き揃え。
Currently, prepregs, which are made by impregnating reinforcing fiber bundle tapes such as carbon fibers, glass fibers, and fully aromatic polyamide fibers with thermosetting resins such as epoxy resins and unsaturated polyester resins, are used for leaf springs and honeycomb structures. industrial materials such as
It is widely used as a molding material for sports and leisure equipment such as fishing rods, golf shafts, and badminton shafts.
It's being used. Furthermore, in recent years, many studies have been conducted on the use of prepreg-based molding materials for aircraft materials, automobile materials, and medical materials, and some of them have been put into practical use. With the diversification of uses for prepreg, especially in fields where precision is required, consistency of reinforcing fibers, uniformity of basis weight distribution, uniformity of resin content, width direction and length direction of prepreg are required. At the same time, there is an increasing demand for thin prepregs, that is, prepregs in which the molding thickness of one ply is 0.1 mm or less. The methods usually used to make uniform and thin prepregs include arranging thin fiber bundles or fiber bundles with a small number of filaments in one direction, impregnating them with resin, and then pressing them with heated rollers to form prepregs.
Alternatively, the fiber bundles are spread out using various opening means and aligned in one direction.

しかるのち樹脂含浸を行いプリプレグを製造する方法が
ある。しか(−ながら、細い繊維束は一般に高価なため
、コスト的には出来るだけ太い繊維束を押し拡けるのが
有利である。
There is a method of manufacturing a prepreg by subsequently impregnating it with a resin. However, since thin fiber bundles are generally expensive, it is advantageous in terms of cost to spread out the thick fiber bundles as much as possible.

薄(て均質なプリプレグは薄肉成形体を得るためだけで
な(、一方向引き揃え補強繊維強化樹脂の異方性の特徴
を生がした設計を可能ならl−め、複合材料の使用用途
をさらに拡大するものと考えられる。
Thin (and homogeneous) prepregs are used not only to obtain thin-walled molded objects, but also to create designs that take advantage of the anisotropic characteristics of unidirectionally aligned reinforcing fiber-reinforced resins, and to improve the use of composite materials. It is thought that this will further expand.

本発明者らは、上記の如き薄(て均質なグリプレグを得
ろため、一方向引き揃え繊維束を毛羽等の発生、繊維の
1′fi傷等を出来るだけ少な(開繊し拡げる方法を種
々検討した結果本発明に到達した。
In order to obtain a thin (and homogeneous) grippreg as described above, the present inventors developed various methods for opening and spreading the fiber bundles in one direction to minimize the generation of fuzz, etc., and the 1'fi damage to the fibers. As a result of study, we have arrived at the present invention.

即ち本発明の要旨とするところは、複数本の互いに平行
に並べた糊剤伺着量0.1〜l、 5 wt%の一方向
引き揃え繊維束を、張力下に曲面を有する基体に押し当
て各繊維束を互いに押し拡げることにある。
That is, the gist of the present invention is to press a plurality of unidirectionally aligned fiber bundles arranged in parallel to each other and each having a size adhesion amount of 0.1 to 5 wt% onto a substrate having a curved surface under tension. The purpose of this process is to press and spread the fiber bundles together.

以下本発明方法について詳しく説明する。The method of the present invention will be explained in detail below.

図1(A)、(B)は本発明方法による繊維束の押し拡
げの原理を説明するための模式図である。図1(A)中
、(1)は張力T下に走行する繊維束を、(2)は曲面
基体を、又図1(B)中、Rは曲面基体の曲率半径を、
又△Rは繊維束の厚みを示す。ここでこの基体曲面を走
行する繊維束内の各単繊維の供給量がどれも同じとすれ
ば2曲面走行時において一番外側を走る単繊維は一番内
側を走る=9複・Efなる過剰な張力によって△Pなる
力で内側へ押し付けられる。ここでEfは繊維の弾性率
を示す。このような原理によって繊維束内の外側の繊維
は内側へ内側と押し付ける力を受ける。この時に各単繊
維間の摩擦抵抗がある程度低いと外側にある単繊維は内
側へ沈み込み、結果として繊維束の厚みが薄(なり1幅
方向へ押」7拡げる力が働(。繊維束はこの場合走行状
態にあるので仄から次へと押し拡げられ。
FIGS. 1A and 1B are schematic diagrams for explaining the principle of spreading a fiber bundle according to the method of the present invention. In FIG. 1(A), (1) indicates the fiber bundle running under tension T, (2) indicates the curved substrate, and in FIG. 1(B), R indicates the radius of curvature of the curved substrate.
Further, ΔR indicates the thickness of the fiber bundle. Here, if the supply amount of each single fiber in the fiber bundle running on this curved surface of the base is the same, when running on two curved surfaces, the single fiber running on the outermost side will run on the innermost side = 9 times Ef, an excess It is pressed inward with a force of △P due to the tension. Here, Ef indicates the elastic modulus of the fiber. Due to this principle, the outer fibers within the fiber bundle receive a force that pushes them inward. At this time, if the frictional resistance between each single fiber is low to some extent, the single fibers on the outside will sink inward, and as a result, the thickness of the fiber bundle will become thinner (1), and a force to expand it will act (1) to push it in the width direction (7). In this case, since it is in a running state, it is pushed from one part to the next.

結果として連続的7.C繊維束の押し拡げが達成される
Continuous as a result7. Expansion of the C fiber bundle is achieved.

上記の如き繊維束の押し拡げが効果的に行われるために
は次の条件が重要と考えられる。
The following conditions are considered to be important in order to effectively spread the fiber bundle as described above.

(1)繊維束内の各単繊維の供給、引き取り量がほぼ一
定であること。すなわち国中、ニップ及びニップで単繊
維間のスリップが出来るだけ抑えられろことが極めて重
要である。
(1) The amount of supply and withdrawal of each single fiber within the fiber bundle is approximately constant. That is, throughout the country, it is extremely important that slippage between single fibers be suppressed as much as possible at the nip and in the nip.

(2)  」配糸△T及び△P Txる力を発生させる
ためには、繊維束内の各単繊維のわずかなゆるみ。
(2) In order to generate the forces of yarn distribution ΔT and ΔP Tx, each single fiber in the fiber bundle must be slightly loosened.

蛇行等を出来る限り減少させろために繊維束に掛けられ
る張力Tは繊維束への損傷が無い範囲で出来ろ限り強(
すること。
In order to reduce meandering as much as possible, the tension T applied to the fiber bundle should be as strong as possible without damaging the fiber bundle.
to do.

(3)懺維車内の単繊維間の摩擦力及び繊維束と基体曲
面との摩擦力を出来る限り小さくすること。ここで繊維
束に付着された糊剤の付着量が問題となって(ろ。すな
わち繊維自体の取り扱い性、ガイドやゴム、それに上記
基体曲面等での繊維束の損傷2毛羽の発生を防ぐには1
〜3wt%の糊剤付着が必要とされるが、上記の繊維間
の摩擦力を出来るだけ小さくするには糊剤付着量を出来
る限り少なくする必要がある。種々検討の結果9繊維の
損傷を抑え毛羽等の発生を防ぎ、しかもスムーズに繊維
束の押し拡げを達成させるためには、繊維の種類、サイ
ズ剤の種類にも多少左右されるが、およそ0,1〜l、
 5 wt%望ましくは0,3〜l、Qwt%の糊剤付
着量が適当であることを見出した。又基体曲面の材質に
ついても同様の検討を行った結果、性能面1価格面から
ステンレス梨地面が最適であることを見出した。
(3) The frictional force between the single fibers in the fiber car and the frictional force between the fiber bundle and the curved surface of the base should be made as small as possible. Here, the amount of glue attached to the fiber bundle becomes a problem (i.e., the ease of handling the fiber itself, the guide, rubber, and the damage to the fiber bundle on the curved surface of the base, etc.). is 1
A sizing agent adhesion of ~3 wt% is required, but in order to reduce the frictional force between the fibers as much as possible, it is necessary to reduce the amount of sizing agent adhesion as much as possible. As a result of various studies, 9 In order to suppress damage to the fibers, prevent the occurrence of fuzz, etc., and achieve smooth expansion of the fiber bundle, it is necessary to use approximately 0.0 ,1~l,
It has been found that an appropriate amount of glue applied is 5 wt%, preferably 0.3 to 1, Qwt%. We also conducted a similar study regarding the material of the curved surface of the base, and found that a stainless steel surface was optimal from the standpoint of performance and price.

(4)  曲面の曲率半径を適当に選定すること。上記
の説明から明らかな様に曲率半径について。
(4) Appropriately select the radius of curvature of the curved surface. As is clear from the above explanation, regarding the radius of curvature.

小さければ小さいほど大ぎい効果を発揮する訳であるが
、繊維束は−と言う力で曲面へ押し付けられるため、あ
まりに小さく取り過ぎると繊維束の損傷だけでな(基体
自体を損傷する危険がある。これについても種々検討の
結果1曲率半径3〜30朋望ましくは5〜15龍が適当
でk)るごとを見出した。
The smaller the fiber bundle is, the greater the effect will be. However, since the fiber bundle is pressed against the curved surface by a force called -, if it is too small, it will not only damage the fiber bundle (there is a risk of damaging the base itself). Regarding this, as a result of various studies, it was found that a radius of curvature of 3 to 30 mm, preferably 5 to 15 mm, is appropriate.

以下に本発明方法を具体的に実施例によつ℃説明する。The method of the present invention will be specifically explained below using Examples.

実施例1 図2の9)] F本発明を実施するのに好適なグリプレ
グ製造装置で製造したプリプレグの外観及び繊維束一本
当りの拡がり幅及び1プライ当りのす11論成形jワ。
Example 1 (9) in FIG. 2] Appearance, spread width per fiber bundle, and molding per ply of a prepreg manufactured using a grippreg manufacturing apparatus suitable for carrying out the present invention.

み(Vf 60%)を表1に示した。Table 1 shows the resistance (Vf 60%).

又図2中、(1)はフィードロール、(2)は複数本の
繊維束、(3)はコーム、(4)は梨地面を有する固定
ロール、 (5)ハガイドロ〜ル、 (6)は1g4 
脂フィルムをコーティングした離型′R(を、 (7)
はロール保護用離型紙を、(8)は含浸用加熱ニラグロ
ールを。
In Fig. 2, (1) is a feed roll, (2) is a plurality of fiber bundles, (3) is a comb, (4) is a fixed roll with a pear-finished surface, (5) is a hugger roll, and (6) is a 1g4
Release mold coated with oil film (7)
(8) uses a release paper to protect the roll, and (8) uses a heated chive roll for impregnation.

(9)は巻き取りロールをそれぞれ示す。図中、コ−J
hにより引き揃えられた繊維束はガイドロール(5)を
通り1?地曲面(4)を通過することで各繊維束が押し
拡げられ、繊維束シートとなって離型紙(6)の樹脂フ
ィルムコート面と合体する。七の後、ロール面保護用の
離型紙で被われて加熱ニップロール(8)で樹脂含浸を
行った後、保護用離型紙を剥がして巻き取りロールにプ
リプレグとして巻き上げられる。梨地ロール(4)を1
回転さ・ぜることもできるが9回転させると繊維束と梨
地面の横方向のすべりが少なくなり押し拡げの効果が半
減する。
(9) each shows a winding roll. In the figure, Co-J
The fiber bundle aligned by h passes through the guide roll (5) 1? By passing through the earth curved surface (4), each fiber bundle is pushed out and becomes a fiber bundle sheet, which is combined with the resin film coated surface of the release paper (6). After 7, the roll is covered with a release paper for protecting the roll surface and impregnated with resin using a heated nip roll (8), and then the protective release paper is peeled off and the prepreg is rolled up on a take-up roll. 1 pear roll (4)
It is also possible to rotate and twist it, but if you rotate it 9 times, the lateral slippage between the fiber bundle and the satin surface will decrease, and the effect of pushing and spreading will be halved.

表  1 実施例2 表2は図2に示したプリプレグ製造装置で。Table 1 Example 2 Table 2 shows the prepreg manufacturing equipment shown in Figure 2.

]22000本炭素繊細糊剤付着量0.6wt%)を用
い、Aは繊維束拡幅用の梨地ロールを固定及びI3は回
転させた場合に、又C及びD及びEハ梨地ロールの代り
にテフロンコート、クロムメッキ、セラミック梨地ロー
ルを用いた場合にj静5れろプリプレグの表1と同様の
性能及び得失を示した。
] 22,000 sheets (carbon fine glue adhesion amount 0.6 wt%), A is a fixed satin roll for widening the fiber bundle, I3 is rotating, and C, D and E are Teflon rolls instead of the satin roll. When coated, chrome-plated, and ceramic matte rolls were used, the same performance and advantages and disadvantages as in Table 1 of J-Shise5 Relo prepreg were shown.

【図面の簡単な説明】[Brief explanation of drawings]

図1(A)、 (B)は本発明方法による繊維束の押し
拡けを示す模式図1図2は本発明方法を実施するのに好
適な装置の概略図を示す。 手続補正書 特許庁長官 苔杉和天  殿 1、事件の表示 %願昭58−103762号 2、発明の名称 繊維束の拡幅法 3、補正をする者 事件との関係 特許出願人 東京都中央区京橋二丁目3番19号 (603)三菱レイヨン株式会社 耳マ締役社長 河 崎 晃 夫 4、代 埋入 東京都中央区京橋二丁1」3番19号 5頁9〜11行 「すなわち1図中 〜極め℃重要である。」削除する。
FIGS. 1A and 1B are schematic diagrams showing the spreading of a fiber bundle according to the method of the present invention. FIG. 2 is a schematic diagram of an apparatus suitable for carrying out the method of the present invention. Procedural amendment Written by Kazuten Kokesugi, Director General of the Patent Office1, Indication of the case % Application No. 103762/19832, Name of the invention Method for widening fiber bundles3, Person making the amendment Relationship to the case Patent applicant Chuo-ku, Tokyo 3-19 Kyobashi 2-chome (603) Mitsubishi Rayon Co., Ltd. President and CEO Akio Kawasaki 4, Representative 3-19 Kyobashi 2-chome, Chuo-ku, Tokyo, page 5, lines 9-11 ``In other words, 1 In the figure: ~Extremely important.'' Delete.

Claims (3)

【特許請求の範囲】[Claims] (1)  複数本の互いに平行に並べた糊剤付着量0.
1〜1.、5 wt%の一方向引き揃え繊維束を、張力
下に曲面を有する基体に押し当て各繊維束を互いに押l
−拡げることを特徴とする繊維束の拡幅法。
(1) Adhesive amount of glue 0.
1-1. , 5 wt% unidirectionally aligned fiber bundles were pressed against a substrate having a curved surface under tension, and each fiber bundle was pressed against each other.
- A fiber bundle widening method characterized by widening.
(2)  繊維束を梨地の曲面を有する基体に張力下に
押l−当又ることを特徴とする特許請求の範囲第1項記
載の繊維束の拡幅法。
(2) A method for widening a fiber bundle according to claim 1, characterized in that the fiber bundle is pressed against a substrate having a satin-finished curved surface under tension.
(3)  曲面を有する基体の半径が3〜30朋である
ことを特徴とする特許請求の範囲第1項記載の繊維束の
拡幅法。
(3) The method for widening a fiber bundle according to claim 1, wherein the radius of the substrate having a curved surface is 3 to 30 mm.
JP58103762A 1983-06-10 1983-06-10 Width enlarging method of fiber bundle Granted JPS59228036A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58103762A JPS59228036A (en) 1983-06-10 1983-06-10 Width enlarging method of fiber bundle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58103762A JPS59228036A (en) 1983-06-10 1983-06-10 Width enlarging method of fiber bundle

Publications (2)

Publication Number Publication Date
JPS59228036A true JPS59228036A (en) 1984-12-21
JPH0333814B2 JPH0333814B2 (en) 1991-05-20

Family

ID=14362516

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58103762A Granted JPS59228036A (en) 1983-06-10 1983-06-10 Width enlarging method of fiber bundle

Country Status (1)

Country Link
JP (1) JPS59228036A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS609962A (en) * 1983-06-21 1985-01-19 三菱レイヨン株式会社 Production of fiber sheet
JP2010510398A (en) * 2006-11-16 2010-04-02 ハネウェル・インターナショナル・インコーポレーテッド Method for forming unidirectionally oriented fiber structure
JP2013022946A (en) * 2011-07-26 2013-02-04 Toyota Industries Corp Reinforced fiber sheet, fiber-reinforced composite material, method for manufacturing reinforced fiber sheet, and method for manufacturing fiber-reinforced composite material
CN105386231A (en) * 2015-12-24 2016-03-09 威海拓展纤维有限公司 Carbon fiber yarn spreading device for multi-axial carbon fiber warp knitted fabric
WO2018086921A1 (en) * 2016-11-11 2018-05-17 Hexcel Composites Limited An apparatus and method for spreading fibres

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4854219A (en) * 1971-11-16 1973-07-30
JPS51105422A (en) * 1975-03-08 1976-09-18 Kuraray Co Renzokusenisokuno bunsenhoho
JPS59179746U (en) * 1983-05-20 1984-12-01 出光興産株式会社 gas station

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4854219A (en) * 1971-11-16 1973-07-30
JPS51105422A (en) * 1975-03-08 1976-09-18 Kuraray Co Renzokusenisokuno bunsenhoho
JPS59179746U (en) * 1983-05-20 1984-12-01 出光興産株式会社 gas station

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS609962A (en) * 1983-06-21 1985-01-19 三菱レイヨン株式会社 Production of fiber sheet
JPH0331822B2 (en) * 1983-06-21 1991-05-08 Mitsubishi Rayon Co
JP2010510398A (en) * 2006-11-16 2010-04-02 ハネウェル・インターナショナル・インコーポレーテッド Method for forming unidirectionally oriented fiber structure
JP2013022946A (en) * 2011-07-26 2013-02-04 Toyota Industries Corp Reinforced fiber sheet, fiber-reinforced composite material, method for manufacturing reinforced fiber sheet, and method for manufacturing fiber-reinforced composite material
CN105386231A (en) * 2015-12-24 2016-03-09 威海拓展纤维有限公司 Carbon fiber yarn spreading device for multi-axial carbon fiber warp knitted fabric
WO2018086921A1 (en) * 2016-11-11 2018-05-17 Hexcel Composites Limited An apparatus and method for spreading fibres
GB2556624B (en) * 2016-11-11 2019-03-13 Hexcel Composites Ltd An apparatus and method for spreading fibres
CN109937271A (en) * 2016-11-11 2019-06-25 赫克塞尔合成有限公司 For sprawling the instrument and method of fiber

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