JPS6212580A - Winding of brittle fiber - Google Patents

Abstract

PURPOSE:To permit rewinding with no occurrence of end breakage or fluffing in winding of carbon fiber or the like by winding the fiber with a parting material interposed between fiber bundles lying one upon another in the direction of thickness of the wound heap on a bobbin. CONSTITUTION:When a bundle of brittle fiber such as carbon fiber and silicon carbide fiber is wound on a bobbin, winding of a layer is followed by winding of another layer with a sheet of parting material interposed therebetween, and such an operation is repeated to wind fiber bundles of continuously long fiber into multiple layers. Such a parting material maybe paper of cellulosic fiber, parting paper having a parting agent such as silicone applied thereonto, or thermoplastic resin film which are flexible and nonadhesive, having a thickness less than 100mum. this prevents intrusion of a fiber bundle wound in an upper layer into a lower fiber layer, with no fear of reduction of quality such as damage, breakage or fluffing caused by rubbing between fiber bundles.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は臆弱な＃雑の巻き取り方法に関するものである
。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for winding up fragile #miscellaneous materials.

〔従来の技術〕[Conventional technology]

炭素繊維や炭化ケイ素鰺維等は高性能複合材料のフィシ
−繊維として近年注目されている。In recent years, carbon fibers, silicon carbide fibers, and the like have been attracting attention as fibers for high-performance composite materials.

一般にこれらの繊維の製造法としては、炭素繊維の場合
は炭素質ピッチ、ポリアクリロニトリル、セルローズ、
ポリビニルアルコール等を原料とし、一方炭化ケイ素使
維の場合はポリカルボクラン等を原料′とし、これら原
料を湿式あるいは乾式溶融紡糸し、得られる有機重合体
線維を不融化処理もしくは耐炎化処理し１次いで炭化焼
成処理することにより製造される。In general, the manufacturing methods for these fibers include carbon pitch, polyacrylonitrile, cellulose,
Polyvinyl alcohol etc. are used as raw materials, while in the case of silicon carbide fibers, polycarboxane etc. are used as raw materials', these raw materials are wet or dry melt spun, and the resulting organic polymer fibers are treated to be infusible or flame resistant.1 It is then produced by carbonization firing treatment.

又、フェノール樹脂系のノボラック樹脂を溶融紡糸し、
次いで硬化して得られる耐炎繊維は防火服等に利用され
ている。In addition, we melt-spun phenolic novolac resin,
The flame-resistant fibers obtained by subsequent curing are used in fireproof clothing and the like.

そしてこれらの−雑に関し、連続長ゆ錐状のものを製造
する際は各工程での槽雑送シ速度の差や、製電設置位置
などのため、工程途中で−Ｈボビン等に連続長繊維束を
ボビンの巻き取り厚み方向に重なり合うように多層状態
に巻き取シ、このボビン等から再び巻き戻して次工程へ
移送するのが一般的に行われる。Regarding these miscellaneous items, when manufacturing continuous long cone-shaped products, due to the difference in tank miscellaneous feeding speed in each process and the installation position of electrical equipment, continuous lengths may be added to the -H bobbin etc. during the process. Generally, the fiber bundle is wound into a multi-layered state so as to overlap in the direction of the winding thickness of the bobbin, and then unwound from the bobbin or the like and transferred to the next process.

〔本発明が解決しようとする問題点〕[Problems to be solved by the present invention]

しかし表から、ボビン４ｆＦ、に対し、繊維束を多層状
態で巻き取る場合、巻き取シ張力の九め、上層側に巻き
取られる繊維束が下層側の徴維層に陥没する状況がしば
しば発生する。そしてこの状況は生産性を向上させる九
めに巻き取シ速度を早めるとより張力が増すためよシ一
層発生し易く、又より長い繊維長を得るために巻き取り
厚みを大きくするほど繊維層はより大きな張力＼１ 力を受けることとなυ、上層側の繊維束オ陥没し易くな
る。そしてかかる状況が発生した巻き取り状態のボビン
から繊維束を巻き戻す場合、上層側繊維束が下層側繊維
層に陥没した個所において、欅、維束に対し、異常張力
が加わることにより、ボビン離れが不良となったり、糸
切れ、ケバ立ち等の損傷を生じ、安定的に巻き戻し操作
を行なうことが出来なかったり、巻き戻した繊維の品質
低下したりする問題があった。However, from the table, when winding a fiber bundle in multiple layers on a bobbin of 4 fF, the winding tension is 9, and the fiber bundle wound on the upper layer often collapses into the lower fiber layer. do. This situation is more likely to occur when the winding speed is increased to increase productivity, as the tension increases.Also, as the winding thickness is increased to obtain a longer fiber length, the fiber layer becomes thinner. When subjected to a larger tension force, the fiber bundles on the upper layer side are more likely to collapse. When rewinding a fiber bundle from a bobbin in the winding state where such a situation has occurred, abnormal tension is applied to the zelkova and fiber bundles at the location where the upper fiber bundle collapses into the lower fiber layer, causing the bobbin to separate. There have been problems in that the fibers may be defective, yarn breakage, fuzzing, and other damage may occur, making it impossible to perform the unwinding operation stably, and the quality of the unwinding fibers deteriorating.

かかる問題は合成繊維や天然繊維などのように、呻維自
体が強靭である場合にはほとんど支障とはならない。This problem is hardly a problem when the fibers themselves are strong, such as synthetic fibers or natural fibers.

しかし、炭素線維のプレカーサーであるピッチ繊維、炭
化ケイ素繊維のプレカーサーであるポリカルボシラン繊
維及びそれらのプレカーサー線維を不融化して得られる
不融化繊維、さらにはノボラック樹脂を紡糸して得られ
る４１０などは破断強度が０．５〜７０ｋｇ　／　ｘｉ
程度と合成繊維や、天然繊維に較べ、脆弱ために、上述
の巻き戻し時の問題が顕著に発生するので、連続長繊維
を得るために、従来の多層巻き取シの方法では１巻き取
り長さの長い厚巻きが出来ず、巻き戻し性が劣ったり、
品質が劣化するなどあシ大きな問題であった。そこで、
従来においても多層巻き取り時に上層側の繊維束が、下
層側の繊維ＭＫ陥没するのを改良するため、％開昭ｊタ
ー？２−３号公報で開示されているようにボビン上で伜
維束をトラバースし、上層側繊維束が、下層側０１束に
対して交互に交叉するようにして巻き取る方法が提案さ
れている。しかし、ピッチ繊維、ポリカルボシラン繊維
及びそれらの不融化繊維、或いはノボラック綾雑のよう
に、破断速度が弱い上に破断伸度もＯ，ＯＳ〜ｊ％程度
と極めて小さな脆弱繊維の場合にはガイド等を用いてト
ラバースする際にはカイト等との摩擦等によシ繊維が折
れたり、切れたりする問題があシ、さらに、繊維束の陥
没を少なくするためＫ、例えば綾角を大きくする工夫も
考えられるが、脆弱ｔ４４＃の場合には綾角の大きな巻
きウリボビンから、巻き戻しする際には繊維自体の臆弱
さのためにボビン上からの繊維束の屈曲角度に耐え得ず
、や＃−ｉシ＃＃）維が折れたり、切れたりする問題が
ある。However, pitch fibers which are precursors of carbon fibers, polycarbosilane fibers which are precursors of silicon carbide fibers, infusible fibers obtained by infusibleizing these precursor fibers, and even 410 obtained by spinning novolak resin, etc. The breaking strength is 0.5~70kg/xi
Due to the fibers being more fragile than synthetic fibers or natural fibers, the above-mentioned problems occur during unwinding. Therefore, in order to obtain continuous long fibers, the conventional multilayer winding method requires only one winding length. It is not possible to roll thickly with a long length, and the unwinding performance is poor.
This caused major problems such as deterioration of quality. Therefore,
Conventionally, in order to prevent the fiber bundle on the upper layer side from collapsing when winding up multiple layers, the fiber bundle on the lower layer side has been rolled up. As disclosed in Publication No. 2-3, a method has been proposed in which the fiber bundles are traversed on a bobbin and the upper fiber bundles are wound up so that they alternately intersect with the lower fiber bundles. . However, in the case of extremely small fragile fibers such as pitch fibers, polycarbosilane fibers and their infusible fibers, or novolak twill, which have a low breaking speed and elongation at break of approximately O,OS~j%, When traversing using a guide, etc., there is a problem that the fibers may break or break due to friction with a kite, etc. Furthermore, in order to reduce the collapse of the fiber bundle, K, for example, the helix angle is increased. Although some ideas can be considered, in the case of fragile T44#, when unwinding from a winding bobbin with a large winding angle, the fibers themselves are weak and cannot withstand the bending angle of the fiber bundle from above the bobbin. There is a problem that the fibers may break or break.

このように、従来のトラバース方法による巻き取りも脆
弱や維の場合には問題があった。As described above, winding by the conventional traverse method also has problems in the case of brittle or fibery fibers.

〔問題点を解決するための手段〕[Means for solving problems]

そこで、本発明者等は上記の従来技術の欠点を解消すべ
く鉗童検肘を行なった結果、脆弱繊維をボビンに巻き取
るに際し、ボビン上で重なり合う、該繊維束同士の間に
離型部材を介在させて、多層巻きすると云う簡便な方法
で上記欠点を解消することが出来ることを見い出し、本
発明に到達した。Therefore, the present inventors conducted a forceps inspection to solve the above-mentioned drawbacks of the prior art, and found that when winding fragile fibers onto a bobbin, a mold release member is placed between the fiber bundles that overlap on the bobbin. It has been discovered that the above-mentioned drawbacks can be overcome by a simple method of multi-layer winding, and the present invention has been achieved.

すなわち、本発明の目的は、脆弱繊維束をボビンから糸
切れ、ケバ立ち等が発生することなく巻き戻しでき、安
定的にかつ生産性が大幅に向上した脆弱繊維の巻き取り
方法を提供するものである。That is, an object of the present invention is to provide a method for winding brittle fibers in which a brittle fiber bundle can be rewound from a bobbin without yarn breakage, fluffing, etc., and which can stably and greatly improve productivity. It is.

そしてかかる目的は脆弱繊維をボビンに巻き取るに際し
、ボビン上の巻き取り厚み方向に重なり合う、該繊維束
同士の間に＃型部材を介在させて巻き取ることを特徴と
する轍弱律維の巻き取り方法により容易に達成される。The object of this invention is to wind the weak fibers with a # type member interposed between the fiber bundles that overlap in the winding thickness direction on the bobbin when the weak fibers are wound on the bobbin. This can be easily achieved by taking the method.

以下本発明の詳細な説明するＫ、本発明に用いられる脆
弱繊維束は下記の様にして製造される。The present invention will be described in detail below. The brittle fiber bundle used in the present invention is manufactured as follows.

ピッチ繊維束あるいはピッチ繊維束を不融化処理して得
られる不融化繊維束の場合は、周知の方法に従って紡糸
ピッチとしてコールタールピッチ、石炭液化物等の石炭
系ピッチ、各種の石油系ピッチ及び合成樹脂や天然樹脂
を乾留することによって得られる高分子焼成ピッチ等が
用いられ、溶融状態の紡糸ピッチを紡糸口金から気相中
に紡出し、集束してピッチ繊維束が得られる。In the case of pitch fiber bundles or infusible fiber bundles obtained by infusible treatment of pitch fiber bundles, coal tar pitch, coal-based pitches such as liquefied coal, various petroleum-based pitches, and synthetics can be used as spinning pitches according to well-known methods. Polymer fired pitch obtained by carbonizing resin or natural resin is used, and the molten spinning pitch is spun into a gas phase from a spinneret and bundled to obtain a pitch fiber bundle.

次いで得られたピッチ繊維束は酸素、オゾン。The resulting pitch fiber bundle is then exposed to oxygen and ozone.

空気、窒素酸化物、ハロゲン、亜硫酸ガス等の酸化性雰
囲気下％／！θ〜ダ００℃の温度にｊ分〜／θ時間不融
化処理することによって不融化卿維束が得られる。Under oxidizing atmospheres such as air, nitrogen oxides, halogens, sulfur dioxide gas, etc.%/! An infusible fiber bundle is obtained by performing an infusible treatment at a temperature of θ to 00° C. for j minutes to /θ hours.

なお、上記方法により得られ素工融化ｆＩ！Ｉｆ１０．
は不活性雰囲気中で炭化処理、更に必要に応じて黒鉛化
処理されて、目的の炭素線維が製造される。In addition, the elementary melting fI obtained by the above method! If10.
is carbonized in an inert atmosphere, and further graphitized if necessary to produce the desired carbon fiber.

つぎにポリカルボシラン繊維束あるいはその不融化繊維
束の場合は１周知の方法に従ってジメチルジクロロシラ
ンやテトラメチルシランなどを厚料としポリカルボシラ
ンを合成し、溶融紡糸法により紡糸し、ポリカルボシラ
ン繊維束が得られる。Next, in the case of a polycarbosilane fiber bundle or its infusible fiber bundle, polycarbosilane is synthesized using a thick material such as dimethyldichlorosilane or tetramethylsilane according to a well-known method, and the polycarbosilane is spun by a melt spinning method. A fiber bundle is obtained.

次いでポリカルボシラン惰雄束はピッチ帖維と同様に、
酸化性雰囲り中で加熱して不融化し、不融化繊維束が得
られる。なお、得られた不融化繊維は不活性雰囲気中で
焼成処理されて、炭化ケイ素綾維となる。Next, polycarbosilane fibers are used as well as pitch fibers.
It is heated in an oxidizing atmosphere to make it infusible, and an infusible fiber bundle is obtained. The obtained infusible fibers are fired in an inert atmosphere to become silicon carbide twill fibers.

さらＫＦｉノボラック使維の場合は周知の方法に従って
、ノボラック樹脂を溶融紡糸し、ノボラック繊維が得ら
れる。得られたノボラック繊維はホルマリン液中で硬化
され、目的の耐炎繊維が得られる。Further, in the case of KFi novolac fibers, novolac resin is melt-spun to obtain novolac fibers according to a well-known method. The obtained novolak fibers are cured in a formalin solution to obtain the desired flame-resistant fibers.

本発明の巻き取り方法は上述し九様な脆弱な繊維束を対
象とするもので、詳しくは破断強度が１０辞／−以下で
かつ破断伸度が５％以下の脆弱な繊維が好ましく、具体
的には、かかる物性を有するピッチ欅維、ポリカルボ７
ラン＃！維及びそれらの不融化繊維、さらにはノボラッ
ク線維などが挙げられる。The winding method of the present invention targets the above-mentioned nine types of brittle fiber bundles. Specifically, brittle fibers with a breaking strength of 10/- or less and a breaking elongation of 5% or less are preferred. Specifically, pitch keyaki fiber and polycarbo7 having such physical properties are used.
run#! Examples include fibers and their infusible fibers, as well as novolac fibers.

本発明においては、これらの脆弱繊維束をボビン圧巻き
取る際にボビン上で巻き厚み方向に重なシ合う繊維束同
士の間に離型部材を介在させて繊維束同士が直接に触れ
合わないようにして巻き取るように行なう。具体的には
ボビンの一端から他端に向って各繊維束同士が重なり合
わないようにして、一層で巻き取つ次後、シート状の離
型部材を介在させ、次いで該離型部材の上に同様にして
繊維束を一層で巻きウリ、更に離型部材を介在させると
いう操作をくり返し行なうことにより連続長線維状の繊
維束を多層巻きとするものである。In the present invention, when these fragile fiber bundles are wound up on a bobbin, a release member is interposed between the fiber bundles that overlap in the thickness direction of the bobbin so that the fiber bundles do not come into direct contact with each other. Roll it up and wind it up. Specifically, after winding the fiber bundles in a single layer from one end of the bobbin to the other end so that they do not overlap, a sheet-like release member is interposed, and then the fiber bundles are wound on top of the release member. In the same manner as above, the continuous long fiber bundle is wound in multiple layers by repeatedly winding the fiber bundle in a single layer and then interposing a mold release member.

このように一層毎に繊維束と離型部材ｌとを重ねながら
多層巻きする以外に上層側の繊維束が下層側の綾維層に
陥没する程度が少ない場合や、ある程度陥没しても、巻
き戻しする際に問題が少々い場合には、二層以上乃至数
層の繊維束を重ね巻きした上に離型部材を介在させる方
法をくり返して多層巻きとする方法でもよい。In addition to winding the fiber bundle in multiple layers by overlapping the fiber bundle and the mold release member l layer by layer in this way, it is possible to roll the fiber bundle in cases where the fiber bundle on the upper layer does not sink into the twill fiber layer on the lower layer to a small extent, or even if it sinks in to a certain extent. If there are some problems when returning the fiber bundle, a method may be used in which two or more layers to several layers of fiber bundles are wound one over the other, and then a release member is interposed between the fiber bundles to form a multilayer winding method.

さらには、巻き取られる＃１１＃Ｍ束の幅以上の幅を有
す不テープ状の離型部材を用い、繊維束に直接に沿わせ
るようにして繊維束とテープ状離型部材とを一緒に巻き
取り繊維束同士が直接重なシ合うのを防ぐような巻き取
り方法でもよい。Furthermore, using a non-tape release member having a width greater than the width of the #11#M bundle to be wound up, the fiber bundle and the tape release member are brought together so as to lie directly along the fiber bundle. A winding method that prevents the winding fiber bundles from directly overlapping each other may be used.

なおかかるテープ状離型部材を用いる時は巻き取り速度
を犬きくできるので好ましい。It is preferable to use such a tape-like release member because the winding speed can be increased.

ボビンの大きさとしては１８８束の巻き取り量や巻き取
シ速度などにより適宜選択決定されるが、通常ボビンの
直径が／θ〜１００ｃｍ、長さが７０−．２００ＣＩｎ
程度のもので、紙管状゛のものを用いるのが便利である
。The size of the bobbin is appropriately selected depending on the winding amount of the 188 bundle and the winding speed, but usually the diameter of the bobbin is /θ ~ 100 cm, and the length is 70 cm. 200CIn
It is convenient to use something in the shape of a paper tube.

離型部材としては、巻き増り及び巻き戻し時に繊維を傷
めたり、切断したり、巻き戻しの際ｒＰ雑が離型部材に
付着する恐れのないものであれば、特に限定されるもの
ではないが、好ましくは柔軟性があり、非粘着性で、厚
みが７００ミクロン以下より好ましくは５０ミクロン以
下の紙状若しくはフィルム状のものを用いるのがよい。The mold release member is not particularly limited as long as it does not damage or cut the fibers during additional winding and unwinding, and there is no risk of rP miscellaneous adhering to the mold release member during unwinding. However, it is preferable to use a paper-like or film-like material that is flexible, non-adhesive, and has a thickness of 700 microns or less, more preferably 50 microns or less.

具体的には、セルロース繊維系の紙（例えば事務用紙）
、シリコーン等の離型剤を塗布した離型紙、ナイロン、
ポリエチレンテレフタレート、ポリブチレンテレフタレ
ート、ポリカーボネイト、ポリエチレン、ポリプロピレ
ン、等の各種熱可塑性樹脂のフィルム及び該フィルム表
面を微小凹凸加工し念もの、微小無機フィラーを充てん
したもの、あるいは帯電防止加工したものなどを用いる
のが艮い。Specifically, cellulose fiber paper (e.g. office paper)
, release paper coated with a release agent such as silicone, nylon,
Films of various thermoplastic resins such as polyethylene terephthalate, polybutylene terephthalate, polycarbonate, polyethylene, polypropylene, etc., and films whose surfaces are processed with minute irregularities, filled with minute inorganic fillers, or antistatically treated are used. It's strange.

なおボビン表面も離型部材と同様の作用を有するものが
好ましい。In addition, it is preferable that the surface of the bobbin also has the same effect as the mold release member.

本発明の対象脆弱繊維束は紡糸口金から紡出される生繊
維（例えば、ピッチ繊維、ポリカルボシラン繊維、ノボ
ラック繊維など）や、不融化処理された不融化繊維に対
し、集束剤や締、維処理剤などを添着した繊維束であっ
ても良い。The subject brittle fiber bundles of the present invention are raw fibers spun from a spinneret (e.g., pitch fibers, polycarbosilane fibers, novolac fibers, etc.) and infusible fibers that have been infusible. It may also be a fiber bundle to which a processing agent or the like is attached.

さらには、脆弱な繊維束を複数本合糸し七巻き取る際や
、該繊維束を撚って巻き取る際などにも本発明の巻き取
り方法を利用することができる。Furthermore, the winding method of the present invention can also be used when a plurality of fragile fiber bundles are combined and wound seven times, or when the fiber bundles are twisted and wound.

（効果） 以上のように本発明によれば、連続長伊錐状の脆弱ゆ維
束同士の間に離型部材を介在させて巻き取ると云う簡便
な方法を行なうことにより、従来の方法に較べ、次のよ
うな点が優れている。(Effects) As described above, according to the present invention, by performing a simple method of interposing a release member between continuous cone-shaped brittle fiber bundles and winding them, the conventional method can be improved. In comparison, it has the following advantages:

即ち、離型部材を設けることＫより巻き取り時の張力に
よって上層側に巻き取られる繊維束が、下層側の卿ｍｒ
ｗｔＫ陥没したりくい込んだりすることが防止でき、繊
維束同士がこすれ合い、損傷したり、切れたり、毛羽立
ったりする品質劣化が起らない。従って高速巻き取りあ
るいは、／ボビン尚りの巻き取り厚みを大きくして連続
的に長繊維を巻き取る操作が可能となる。That is, by providing a mold release member, the fiber bundle that is wound up on the upper layer side due to the tension during winding is removed from the lower layer side.
WtK can be prevented from sinking or digging in, and quality deterioration such as fiber bundles rubbing against each other, damage, cuts, and fluffing does not occur. Therefore, high-speed winding or continuous winding of long fibers by increasing the winding thickness of the bobbin becomes possible.

さらには巻き戻し時には繊維束が陥没したり、くい込ん
だりするのを防止できるのでボビン離れが良く、高速度
かつ安定して巻き戻しが出来、かつ繊維束同士がすれ合
い損傷したり、切れ几シ、毛羽立ったりする問題もなく
、連続長繊維が得られる。Furthermore, during unwinding, the fiber bundles can be prevented from sinking or getting wedged, so they can be easily separated from the bobbin, and can be unwinded at high speed and stably. Continuous long fibers can be obtained without the problem of fluffing.

このように本発明の方法は脆弱停維を巻き取り、さらに
巻き戻すに際し、轡維の品質及び生産性いずれについて
も従来の方法に較べ大巾に改良向上が可能となる。As described above, the method of the present invention can significantly improve both fiber quality and productivity when winding and unwinding brittle fibers compared to conventional methods.

以下、実施例にて本発明を説明するが、本発明の要旨の
限りにおいては実施例に限定されるものではない。The present invention will be described below with reference to Examples, but the present invention is not limited to the Examples as far as the gist of the invention is concerned.

実施例／ コールタールピッチを水添処理し、次いで窒素カスを吹
込みながら、加熱処理することにより、光学的異方性を
示す紡糸用メンピッチを得。Example/ Coal tar pitch was hydrogenated and then heated while blowing in nitrogen gas to obtain spinning men pitch exhibiting optical anisotropy.

た。該紡糸ピッチをノズル孔°数２３’０の紡糸口金を
用い、紡糸温度３４ｔ０℃にて溶融紡糸し、単糸本数２
５０、単糸直径７２ミクロン、破断強度／故／−１破断
強度０．／チのピッチ繊維束を得た。Ta. The spinning pitch was melt-spun using a spinneret with a nozzle hole number of 23'0 at a spinning temperature of 34t0°C, and the number of single yarns was 2.
50, single yarn diameter 72 microns, breaking strength/loss/-1 breaking strength 0. A pitch fiber bundle of /C was obtained.

該ピッチ繊維束を直径３０ｃｒｎ％長さ２０ｃｍで表面
に離型部材として厚さ約２０ミクロンの薄手のセルロー
ス側維系の事務用紙を巻付けた紙管状ボビンに、巻き増
り張力２〜３ｆ、巻き取り速度ｊｍ／―で連続的に巻き
取った。ボビン上に巻き取られるＲ細束同十が重なり合
わないように、ボビン上の約７５Ｇの幅に一層状に巻き
増った。一層状に巻き終えた時点で、卿維層の上に２０
ｃｒＩＩ幅の上記離型部材と同じ事務用紙を静かに巻付
け、引続き二層目のｆ＃１維束細束層目とけ逆方向にし
ながら上述の紙の上に巻き取９、以下同様の巻き砲り操
作を繰り返し、最終的に２０＠の繊維束が巻き取られた
連続長繊維状のボビンを得た。巻き取）の間績細束が切
れたシするトラブルはなかった。ついで該ボビンに巻か
れたピッチ僻細束を約１０ｒｎ／ｍの巻き戻し速度にて
離型部材がボビン表面に表われた時には静かに取り除き
ながら巻き戻して別のボビンに巻きとったが、−ｉ毎に
離型部材が介在しているので、ボビン離れが悪かったり
、糸切れしたり、ケバ立ったりする問題はなく長縁錐状
のゆ維束が得られ良好であった。The pitch fiber bundle was wrapped around a paper tube-shaped bobbin with a diameter of 30 crn% and a length of 20 cm and a thin cellulose fiber-based office paper with a thickness of about 20 microns used as a release member on the surface, with an additional winding tension of 2 to 3 f. It was wound up continuously at a winding speed of jm/-. In order to prevent the same number of R bundles wound onto the bobbin from overlapping each other, they were wound in a single layer to a width of approximately 75G on the bobbin. When finished rolling in a single layer, there are 20
Gently wrap the same office paper as the above-mentioned release member with crII width, and then wind it up on the above-mentioned paper while melting the second f#1 fibrous layer in the opposite direction. The firing operation was repeated to finally obtain a continuous long fiber bobbin in which 20@ fiber bundles were wound. There were no problems with the thin bundle being cut during the winding process. Then, when the release member appeared on the surface of the bobbin, the pitch-free bundle wound on the bobbin was unwound at a rewinding speed of about 10 rn/m, and was gently removed and wound onto another bobbin. Since a mold release member was interposed for each i, there were no problems such as poor bobbin separation, thread breakage, or fuzz, and a long-edge cone-shaped fiber bundle was obtained.

実施例コ 実施例／で得られたピッチ槽細束を空気雰囲気中で７５
０℃から３１０′ｃｔｌＣ加熱し、不融化処理を行ない
、破断強度９に９／−１破断伸度ｉ、ｏ％の不融化繊維
束を得た。Example 7 The pitch tank bundle obtained in Example 1 was heated in an air atmosphere for 75
The fibers were heated from 0°C to 310'ctlC to perform an infusible treatment to obtain an infusible fiber bundle having a breaking strength of 9 and a breaking elongation of 9/-1 i, o%.

該不融化繊維束を巻き取り張カフ０〜／　！　１１巻き
取シ速度１０ｍ／ｍとした以外は実施例／と同じように
してボビン上に連続長繊維状に巻き取った。巻き取りの
間締、細束が切れたりする問題はなかった。The infusible fiber bundle is wound up and stretched into a cuff 0~/! 11 The material was wound into a continuous filament on a bobbin in the same manner as in Example except that the winding speed was 10 m/m. There were no problems with winding gaps or thin bundles breaking.

次いで巻き取った不融化繊維束を実施例／と同様にして
巻き戻して別のボビンに巻き取ったが、ボビン離れが悪
かつ念り、糸切れしたり、ケバ立ったりする問題はなく
長繊維状の榛細束が得られ良好であっ友。Next, the wound infusible fiber bundle was rewound and wound onto another bobbin in the same manner as in Example/, but the bobbin separation was poor and there was no problem of thread breakage or fuzzing, and the long fibers were I was able to get a nice bunch of daisies, which was great.

実施例３ 実施例／と同様にして、紡糸用メンピッチを溶融紡糸し
、紡出されるピッチ繊、維にクリコーン系の集束剤を添
着して集束した繊維束に、離型部材として厚さ約３θミ
クロン、幅／ｃｍのポリブチレンテレフタレートのテー
プを沿わせ、ボビンに巻き取られるｔａ＃束同士の間に
該テープがはさみ込まれるようにしなからｐ細束と一緒
に／θＯｍ／ｙｎｉｙ＋の巻き取シ速度にて１０分間、
糸切れなしく連続的に巻き取った。Example 3 In the same manner as in Example 3, memphitch for spinning was melt-spun, and a fiber bundle with a thickness of about 3θ was added as a release member to the spun pitch fibers and fibers attached with a clicon-based sizing agent and bundled. A polybutylene terephthalate tape with a width of microns and cm is placed along the bobbin so that the tape is sandwiched between the ta# bundles wound on the bobbin, and then the θOm/yniy+ is wound together with the p bundle. 10 minutes at high speed.
The thread was wound continuously without breakage.

用い九ボビンは直径３０６ｍ、長さ６０Ｇでその表面に
は上記離型部材と同じ厚さ３０ミクロンのポリブチレン
テレフタレートフィルムを巻きつけておき、巻き取りの
間、該ボビンをｊＯＣのピッチ幅にてトラバースさせ、
ボビン表面近くには除電装置を設は巻き取り性を艮くし
た。The nine bobbins used had a diameter of 306 m and a length of 60 G, and a polybutylene terephthalate film of 30 microns in thickness, the same as that of the above mold release member, was wound on the surface of the bobbin, and during winding, the bobbin was wound at a pitch width of jOC. traverse,
A static eliminator was installed near the bobbin surface to improve winding performance.

巻き取られたボビンから、摺細束と離型部材とをはがし
ながら、夫々別のボビンに１００ｍ／ｙｎｉｓにて巻き
戻したところ、糸切れ、ケバ立ちもなく円滑に巻き戻せ
連続是使維が得られた。When I peeled off the striped bundle and the release member from the wound bobbin and rewinded it onto separate bobbins at 100m/ynis, the thread was unwound smoothly without any breakage or fluff, and the thread was continuous. Obtained.

この際にも＃！給束と離型部材とがはがれる個所近くに
除電装置を設けはがれ性を良くした。# at this time too! A static eliminator was provided near the location where the feeding bundle and the mold release member were separated to improve their peelability.

比較例／ 実施例／と同じピッチ繊維束とボビンを用い、離型部材
を用いなかった以外は実施例／と同様にして、ボビン上
に２０層の繊維束を重ね巻きした。この際ボビン上のと
ころどころに上層側に巻き取られた繊維束が下層側のＩ
ｆ層の間に陥没する個所がみとめられた。ついでボビン
に巻かれたピッチ繊維束を約１０ｒｎ／１ｍにて別のボ
ビンに巻き取ったところ、巻き戻しボビン表面の接線方
向に直線的に使鹸が引出されず、強く屈曲し締維が傷む
ようなボビン離れの悪さがしばしば起り、約コｊＯｍ巻
き戻した時点で多数本の単糸切れが発生し巻き戻し操作
を中止しなければならず、その間の繊維束１０ｍあたり
〜３０θｍ巻き戻し念時点でほとんどの場合、多数本の
単糸切れが発生し、又、ケバ立ち頻度も前記同様摺細束
１０ｍ当υ３〜２個と多く、この糸切れやケバ立ちはボ
ビンの下層側の繊維束程、激しくなる傾向がみられた。Comparative Example/The same pitch fiber bundle and bobbin as in Example were used, and 20 layers of fiber bundles were wound on the bobbin in the same manner as in Example, except that no release member was used. At this time, fiber bundles wound on the upper layer side are scattered on the bobbin in places on the lower layer side.
A depressed area was observed between the f-layers. Then, when the pitch fiber bundle wound on the bobbin was wound onto another bobbin at about 10rn/1m, the used soap was not pulled out in a straight line in the tangential direction of the unwinding bobbin surface, but it was bent strongly and the fibers were damaged. This problem of bobbin separation often occurs, and when the fiber bundle is unwound for about 10 m, many single threads break and the unwinding operation has to be stopped. In most cases, many single threads break, and the frequency of fuzzing is as high as υ3 to 2 per 10 m of the thin bundle, as described above. , a tendency to become more severe was observed.

比較例コ 比較例／において、重ね巻きを７０層に減じて巻き取っ
たボビンから、巻き戻し速度もλｍ／ｍｉｎに減じて行
なった以外は比較例／と同様に操作した。Comparative Example The same procedure as in Comparative Example/ was carried out except that in Comparative Example/, the number of layers was reduced to 70 and the unwinding speed was also reduced to λm/min.

この結果、巻き戻し時のピッチＰ、細束のボビン離れの
悪さは、比較例／程は多くないもののやはシ角生し、約
’１ｏｏｒｎ巻き戻した時点で多数本の単糸切れが発生
し巻き戻し模作を中止せねばならずその間の繊維束１０
層当りには７〜２個のケバ立ちもみられた。As a result, the pitch P during unwinding and the poor separation of the thin bundle from the bobbin were not as high as in the comparative example, but it was still a little rough, and many single yarns were broken after unwinding for about 100 minutes. The fiber bundle 10 has to be unwound and stopped.
Seven to two fluffs were also observed per layer.

比較例コの巻き取り量は比較例／の半分とし、巻き戻し
速度も大巾に減じたものだが、それでも巻き戻しの際に
ケバ立ち等の問題の発生を抑制することができなかった
。Although the amount of winding in Comparative Example C was half that of Comparative Example /, and the unwinding speed was also significantly reduced, it was still not possible to suppress the occurrence of problems such as fluffing during unwinding.

出　願　人　　三菱化成工業株式会社 代　理　人　　長谷用　　　− （ほか７名）Sender: Mitsubishi Chemical Industries, Ltd. Representative for Hase - (7 others)

Claims (11)

【特許請求の範囲】[Claims] （１）脆弱繊維束をボビンに巻き取るに際し、ボビン上
の巻き取り厚み方向に重なり合う該繊維束同士の間に離
型部材を介在させて巻き取ることを特徴とする脆弱繊維
の巻き取り方法。(1) A method for winding up brittle fibers, which is characterized in that when winding up brittle fiber bundles onto a bobbin, a release member is interposed between the fiber bundles that overlap each other in the winding thickness direction on the bobbin. （２）脆弱繊維束が炭素質ピッチを紡糸して得られるピ
ッチ繊維束又は該ピッチ繊維束を不融化処理して得られ
る不融化繊維束であることを特徴とする特許請求の範囲
第１項記載の方法。(2) Claim 1, characterized in that the fragile fiber bundle is a pitch fiber bundle obtained by spinning carbonaceous pitch or an infusible fiber bundle obtained by infusible treatment of the pitch fiber bundle. Method described. （３）脆弱繊維束が、ポリカルボシランを紡糸して得ら
れるポリカルボシラン繊維束又は該ポリカルボシラン繊
維束を不融化処理して得られる不融化繊維束であること
を特徴とする特許請求の範囲第１項記載の方法。(3) A patent claim characterized in that the fragile fiber bundle is a polycarbosilane fiber bundle obtained by spinning polycarbosilane or an infusible fiber bundle obtained by infusible treatment of the polycarbosilane fiber bundle. The method described in item 1. （４）脆弱繊維束が、ノボラック樹脂を紡糸して得られ
るノボラック繊維束であることを特徴とする特許請求の
範囲第１項記載の方法。(4) The method according to claim 1, wherein the fragile fiber bundle is a novolac fiber bundle obtained by spinning a novolac resin. （５）脆弱繊維束が破断強度１０ｋｇ／ｍｍ＾２以下で
破断伸度５％以下の物性を有する繊維からなることを特
徴とする特許請求の範囲第１〜４項のいずれかに記載の
方法。(5) The method according to any one of claims 1 to 4, wherein the brittle fiber bundle is made of fibers having physical properties of a breaking strength of 10 kg/mm^2 or less and a breaking elongation of 5% or less. . （６）ボビン上に脆弱繊維束を一層巻き取る毎に離型部
材を介在させて、二層以上の多層巻きをすることを特徴
とする特許請求の範囲第１〜５項のいずれかに記載の方
法。(6) According to any one of claims 1 to 5, the brittle fiber bundle is wound in multiple layers of two or more layers with a release member interposed each time the fragile fiber bundle is wound on the bobbin. the method of. （７）脆弱繊維束に離型部材を沿わせ、該繊維束同士の
間に該部材がはさみ込まれるようにしながら、該繊維束
と該部材とを一緒に巻き取ることを特徴とする特許請求
の範囲第１〜５項のいずれかに記載の方法。(7) A patent claim characterized in that the fiber bundle and the member are wound together while a release member is placed along the fragile fiber bundle and the member is sandwiched between the fiber bundles. The method according to any one of items 1 to 5. （８）離型部材が、厚み１００ミクロン以下の柔軟性の
ある紙状もしくはフィルム状物質であることを特徴とす
る特許請求の範囲第１〜７項のいずれかに記載の方法。(8) The method according to any one of claims 1 to 7, wherein the mold release member is a flexible paper-like or film-like substance with a thickness of 100 microns or less. （９）離型部材がセルロース繊維系の紙であることを特
徴とする特許請求の範囲第１〜８項のいずれかに記載の
方法。(9) The method according to any one of claims 1 to 8, wherein the mold release member is cellulose fiber paper. （１０）離型部材が離型剤を塗布した紙であることを特
徴とする特許請求の範囲第１〜８項のいずれかに記載の
方法。(10) The method according to any one of claims 1 to 8, wherein the mold release member is paper coated with a mold release agent. （１１）離型部材が熱可塑性樹脂フィルムであることを
特徴とする特許請求の範囲第１〜８項のいずれかに記載
の方法。(11) The method according to any one of claims 1 to 8, wherein the mold release member is a thermoplastic resin film.