JPH09255227A - Carbon fiber precursor acrylic fiber package and winding method for carbon fiber precursor acrylic fiber - Google Patents
Carbon fiber precursor acrylic fiber package and winding method for carbon fiber precursor acrylic fiberInfo
- Publication number
- JPH09255227A JPH09255227A JP6434996A JP6434996A JPH09255227A JP H09255227 A JPH09255227 A JP H09255227A JP 6434996 A JP6434996 A JP 6434996A JP 6434996 A JP6434996 A JP 6434996A JP H09255227 A JPH09255227 A JP H09255227A
- Authority
- JP
- Japan
- Prior art keywords
- yarn
- fiber
- free
- package
- carbon fiber
- 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.)
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Links
Landscapes
- Forwarding And Storing Of Filamentary Material (AREA)
- Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
- Inorganic Fibers (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、炭素繊維前駆体ア
クリル系糸条パッケージおよびかかるパッケージを得る
に適した炭素繊維前駆体アクリル系糸条の巻き取り方法
に関し、さらに詳しくは、アクリル系糸条を溝付きロー
ラーを走行させ焼成して炭素繊維を得る際に、溝からの
糸条のはみ出しを防止し、焼成工程で良好な操業安定性
をもたらし得る炭素繊維前駆体アクリル系糸条パッケー
ジおよびかかるパッケージを得るに適した炭素繊維前駆
体アクリル系糸条の巻き取り方法に関する。TECHNICAL FIELD The present invention relates to a carbon fiber precursor acrylic yarn yarn package and a method for winding a carbon fiber precursor acrylic yarn yarn suitable for obtaining such a package, and more specifically, to an acrylic yarn yarn. A carbon fiber precursor acrylic yarn package and a carbon fiber precursor acrylic yarn package which can prevent the yarn from protruding from the groove when the carbon fiber is obtained by running a grooved roller and firing to obtain a carbon fiber, and can bring about good operational stability in the firing process. The present invention relates to a method for winding a carbon fiber precursor acrylic yarn that is suitable for obtaining a package.
【0002】[0002]
【従来の技術】ポリアクリロニトリル系糸条は炭素繊維
の前駆体として利用されており、性能の優れた炭素繊維
を得るために多くの改善技術が開示されている。炭素繊
維はその前駆体であるアクリロニトリル系糸条を製糸工
程で一旦巻き取ってパッケージとし、その後かかるパッ
ケージから糸条を解舒して焼成工程へ送り、200〜3
00℃の空気雰囲気中で該糸条を加熱焼成して酸化繊維
に転換する耐炎化工程、窒素・アルゴン・ヘリウム等の
不活性雰囲気中でさらに300〜3000℃に加熱して
炭化する炭化工程を経ることで得られ、複合材料の強化
繊維として航空宇宙用途やスポーツ用途、一般産業用途
などに幅広く利用されている。2. Description of the Related Art Polyacrylonitrile-based yarns are used as a precursor of carbon fibers, and many improvement techniques have been disclosed in order to obtain carbon fibers having excellent performance. Carbon fiber is a precursor of acrylonitrile-based yarn, which is once wound in a spinning process to form a package, and then the yarn is unwound from the package and sent to a firing process, and 200 to 3
A flame-proofing process of heating and firing the yarn in an air atmosphere of 00 ° C to convert it into an oxidized fiber, and a carbonization process of further heating to 300 to 3000 ° C in an inert atmosphere of nitrogen, argon, helium or the like to carbonize. It is obtained through the process and is widely used as a reinforcing fiber for composite materials in aerospace applications, sports applications, and general industrial applications.
【0003】炭素繊維は、一般的に、単繊維数が通常1
000本以上のフィラメントで構成されたマルチフィラ
メントを1つの糸条単位としている。焼成工程、特に耐
炎化工程ではこのフィラメント糸条が隣接の糸条と接触
しないように、多くの場合溝付きのローラーを使用する
ことで、隣接糸条との干渉を防止している。Carbon fibers generally have one single fiber.
One filament unit is a multifilament composed of 000 or more filaments. In the firing step, especially in the flameproofing step, in order to prevent the filament yarn from coming into contact with the adjacent yarn, in many cases, a grooved roller is used to prevent interference with the adjacent yarn.
【0004】一般に、炭素繊維の生産性を上げる手段と
しては、前駆体糸条を多フィラメントにする(太糸条
化)とともに、設備当たりの処理糸条本数を多く(高密
度化)することによって、限られた設備の中で生産量を
増大させること、即ち設備生産性を向上させることが有
効である。このような設備生産性向上に伴って焼成工程
での処理糸条を、例えば糸条を構成する単繊維数が15
000フィラメント以上とするような太糸条化したり、
高密度化すると、前述の溝付きローラーから糸条がはみ
出し、フィラメントの一部が隣の溝に入って毛羽や糸切
れの原因になる問題点があった。Generally, as a means for increasing the productivity of carbon fibers, the precursor yarns are made into multifilaments (thick yarns) and the number of treated yarns per facility is increased (high density). It is effective to increase the production amount in a limited equipment, that is, to improve the equipment productivity. With such improvement in equipment productivity, the number of monofilaments constituting the yarns to be treated in the firing process, for example, 15
Thick threads, such as 000 filaments or more,
When the density is increased, there is a problem in that the thread protrudes from the grooved roller and a part of the filament enters the adjacent groove, which causes fluff and thread breakage.
【0005】このような問題に対し、特公昭59−28
662号公報には、溝形状を規定した溝付きローラーを
耐炎化工程で使用する技術が開示されているが、かかる
溝付ローラーをもってしても、フィラメント数が例えば
15000本以上の太物糸条になると、特に耐炎化工程
において溝付ローラーを用いた場合に、溝付ローラーの
溝から単繊維がはみ出し、毛羽や糸切れが増大すること
が明らかになった。To address this problem, Japanese Patent Publication No. 59-28
Japanese Patent No. 662 discloses a technique in which a grooved roller having a defined groove shape is used in a flameproofing process. Even with such a grooved roller, a thick yarn having a filament number of, for example, 15,000 or more is used. Then, it became clear that when the grooved roller is used especially in the flameproofing step, the single fiber protrudes from the groove of the grooved roller, and fluff and yarn breakage increase.
【0006】[0006]
【発明が解決しようとする課題】本発明の目的は、太物
のアクリル系糸条を溝付ローラーを用いて焼成する際
に、溝付ローラーからの単繊維のはみ出しを抑制し、焼
成工程で毛羽・糸切れのない安定した操業性を与える得
る炭素繊維前駆体アクリル系糸条パッケージおよびかか
るパッケージを得るに適した炭素繊維前駆体アクリル系
糸条の巻き取り方法を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to suppress the protrusion of single fibers from a grooved roller when firing a thick acrylic yarn using a grooved roller, and It is an object of the present invention to provide a carbon fiber precursor acrylic yarn package capable of providing stable operability without fluff and yarn breakage, and a method of winding a carbon fiber precursor acrylic yarn suitable for obtaining such a package.
【0007】[0007]
【課題を解決するための手段】本発明の炭素繊維前駆体
アクリル系糸条パッケージは、上記課題を解決するため
に次の構成を有する。すなわち、糸条の総繊度を120
00デニール以上とする炭素繊維前駆体アクリル系糸条
が巻き取られたパッケージにおいて、該パッケージ上の
前記アクリル系糸条の糸幅が、0.25〜0.6mm/
1000デニールであることを特徴とする、炭素繊維前
駆体アクリル系糸条パッケージである。また、本発明の
炭素繊維前駆体アクリル系糸条の巻き取り方法は、上記
課題を解決するために次の構成を有する。すなわち、ア
クリル系糸条を、糸条集束用フリーガイドローラー群に
少なくとも2段通過させて後、巻き取り機により巻き取
ることを特徴とする、炭素繊維前駆体アクリル系糸条の
巻き取り方法である。The carbon fiber precursor acrylic yarn package of the present invention has the following constitution in order to solve the above problems. That is, the total fineness of the yarn is 120
In a package in which a carbon fiber precursor acrylic yarn having a denier of 00 denier or more is wound, the yarn width of the acrylic yarn on the package is 0.25 to 0.6 mm /
It is a carbon fiber precursor acrylic yarn package characterized by having a denier of 1000. Further, the method for winding a carbon fiber precursor acrylic yarn of the present invention has the following constitution in order to solve the above problems. That is, a method for winding a carbon fiber precursor acrylic yarn, characterized in that the acrylic yarn is passed through at least two stages of free yarn guide roller groups for yarn focusing and then wound by a winder. is there.
【0008】[0008]
【発明の実施の形態】以下、本発明について詳細に説明
する。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below.
【0009】本発明に適用するアクリル系糸条の素材と
してのアクリル系重合体はアクリロニトリル90重量%
以上からなる重合体とするものである。従って、10重
量%以内で他のモノマーを共重合成分として含んでいて
も良い。コモノマーとしてはアクリル酸、メタアクリル
酸、イタコン酸、もしくはこれらのメチルエステル、エ
チルエステル、プロピルエステル、ブチルエステル、ア
ルカリ金属塩、アンモニウム塩、またはアリルスルホン
酸、メタリルスルホン酸、スチレンスルホン酸、もしく
はこれらのアルカリ金属塩等のうち一種または二種以上
を用いることができる。The acrylic polymer used as the material for the acrylic yarn applied to the present invention is 90% by weight of acrylonitrile.
The polymer is composed of the above. Therefore, another monomer may be contained as a copolymerization component within 10% by weight. As the comonomer, acrylic acid, methacrylic acid, itaconic acid, or their methyl ester, ethyl ester, propyl ester, butyl ester, alkali metal salt, ammonium salt, or allyl sulfonic acid, methallyl sulfonic acid, styrene sulfonic acid, or One or more of these alkali metal salts can be used.
【0010】アクリル系重合体は公知の乳化重合、懸濁
重合、溶液重合等の重合法を用いて、重合され、さらに
これらの重合体からアクリル系糸条を製造するに際して
はジメチルアセトアミド、ジメチルスルホキシド(以
下、DMSO)、ジメチルホルムアミド、硝酸、塩化亜
鉛、ロダンソーダ水溶液等を溶媒とするポリマー溶液を
紡糸原液として、通常の湿式紡糸法、乾湿式紡糸法によ
って紡糸する。紡糸された糸条はその後、浴中延伸に供
されるが、浴中延伸は紡出糸を直接行っても良いし、一
度水洗し溶媒を除去した後行ってもよい。浴中延伸は通
常50〜98℃の延伸浴中で約2〜6倍に延伸され、延
伸後は通常、油剤を付与し、ホットローラ等で乾燥緻密
化した後、スチーム延伸に供され、実質的に無撚の状態
で巻き取り機によりパッケージに巻き取られる。パッケ
ージに巻き取る際、複数の糸条を何本か合糸してから巻
き取っても良い。なお、一般的には、巻き取られた糸条
の単繊維繊度は0.5〜2デニール、フィラメント数は
15000〜100,000本である。The acrylic polymer is polymerized by a known polymerization method such as emulsion polymerization, suspension polymerization and solution polymerization. Further, when producing an acrylic yarn from these polymers, dimethylacetamide and dimethylsulfoxide are used. (Hereinafter, DMSO), dimethylformamide, nitric acid, zinc chloride, a polymer solution using an aqueous solution of rhodanesoda, etc. as a solvent is used as a spinning dope, and spinning is carried out by an ordinary wet spinning method or a dry wet spinning method. The spun yarn is then subjected to drawing in a bath, but drawing in the bath may be carried out directly by spinning, or may be carried out after washing once with water to remove the solvent. Stretching in the bath is usually about 2 to 6 times in a stretching bath at 50 to 98 ° C., and after stretching, usually an oil agent is applied, dried and densified with a hot roller or the like, and then subjected to steam stretching. It is wound into a package by a winding machine in a non-twisted state. When winding the package, a plurality of yarns may be combined and wound. In general, the wound filament has a single fiber fineness of 0.5 to 2 denier and a number of filaments of 15,000 to 100,000.
【0011】パッケージに巻き取られた糸条は焼成工程
のクリールに仕掛けられた後、引き出され、低速で耐炎
化炉へ導かれ、空気中約200〜300℃で処理され
る。通常、耐炎化工程では糸条どうしが重なり合うのを
防ぐため、幅3〜15mmの溝を円周方向に複数有する
ローラー、いわゆる溝付ローラーが多数使用される。耐
炎化処理された糸条は引き続いて窒素中約300〜10
00℃の前炭化炉、窒素中約1000〜2000℃の炭
化炉を連続して通過し、炭素繊維となる。The yarn wound into the package is set on a creel in the firing process, then drawn out, introduced at a low speed to a flameproofing furnace, and treated in air at about 200 to 300 ° C. In order to prevent the yarns from overlapping with each other in the flameproofing step, a large number of rollers having a plurality of grooves having a width of 3 to 15 mm in the circumferential direction, so-called grooved rollers, are usually used. The flame-proofed yarn is continuously treated in nitrogen at about 300-10.
It is passed through a pre-carbonization furnace at 00 ° C. and a carbonization furnace at about 1000 to 2000 ° C. in nitrogen continuously to form carbon fibers.
【0012】本発明でもっとも特徴的なのは、耐炎化等
で使用される溝付きローラーからのアクリル系糸条の単
繊維のはみ出しを防ぐために、糸条の総繊度を1200
0デニール以上、好ましくは12000〜50000デ
ニールとする太糸条を巻き取ったパッケージにおいて、
パッケージ上のアクリル系糸条の糸幅を0.25〜0.
6mm/1000デニールとすることである。パッケー
ジ上の糸幅が0.25mm/1000デニールよりも小
さいと耐炎化時に焼き斑が生じて引き続く前炭化・炭化
工程で糸切れとなりやすく好ましくない。また糸幅が
0.6mm/1000デニールよりも大きいと溝付きロ
ーラーから糸条がはみ出してしまい、好ましくない。The most characteristic feature of the present invention is that the total fineness of the yarn is set to 1200 in order to prevent the single filament of the acrylic yarn from protruding from the grooved roller used for flameproofing.
In a package in which a thick thread having a denier of 0 denier or more, preferably 12,000 to 50,000 is wound,
The width of the acrylic yarn on the package is 0.25 to 0.
It is 6 mm / 1000 denier. If the yarn width on the package is smaller than 0.25 mm / 1000 denier, burning marks are generated during flameproofing and yarn breakage occurs in the subsequent pre-carbonization / carbonization step, which is not preferable. If the yarn width is larger than 0.6 mm / 1000 denier, the yarn will protrude from the grooved roller, which is not preferable.
【0013】パッケージ上でのアクリル系糸条の糸幅を
上記範囲とするパッケージを得るためには、糸条を巻き
取り機で巻き取る際に、糸条集束用フリーガイドローラ
ー群を2段以上通過させた後に巻き取る方法が好適に用
いられる。糸条集束用フリーガイドローラー群として
は、例えば特開平2−26950号公報に記載のガイド
ローラー群、すなわちローラー軸を走行糸条に対して実
質的に直角かつ互いに平行になるよう配置した複数本の
第1フリーローラーと、該第1フリーローラーとはその
ローラー軸を実質的に直角に配置した少なくとも1本の
第2フリーローラーとからなるフリーガイドローラー群
が好ましい。かかるフリーガイドローラー群の一例を図
3および4に示す。これらの図に示されているように、
かかるフリーガイドローラー群において、糸条を複数の
第1フリーローラーに前記糸条の表裏が交互に接触する
ように通過せしめて後、第2フリーローラーによりその
糸条にひねりを与えて糸条を集束させるのである。かか
るフリーガイドローラー群に糸条を通過させることによ
って、糸条の端部にはみ出しやすい単繊維を集束させる
効果があるが、糸条の集束効果をさらに増して、パッケ
ージ上でのアクリル系糸条の糸幅を前記範囲とし、耐炎
化工程での操業を安定化させるためにはこれらのフリー
ガイドローラー群を2段以上、好ましくは3段以上通過
させる必要がある。特に複数本の糸条を合糸して巻き取
る場合はその合糸効果を上げるためにも、合糸後の糸条
を糸条集束用フリーガイドローラー群に通過せしめるの
が好ましい。また、フリーガイドローラー群に糸条を通
過させるときの糸条の張力は、35dyne/デニール
〜620dyne/デニールであるのが、糸条集束効果
が大きくなりより好ましい。In order to obtain a package in which the yarn width of the acrylic yarn on the package is within the above range, when the yarn is wound by the winding machine, the yarn collecting free guide roller group is arranged in two or more stages. A method of winding after passing it is preferably used. An example of the free yarn guide focusing roller group is a guide roller group described in Japanese Patent Application Laid-Open No. 26950/1990, that is, a plurality of roller shafts arranged so as to be substantially perpendicular to the running yarn and parallel to each other. It is preferable that the first free roller and the first free roller include at least one second free roller whose roller axis is arranged substantially at right angles. An example of such a free guide roller group is shown in FIGS. As shown in these figures,
In such a group of free guide rollers, the yarn is passed through a plurality of first free rollers so that the front and back of the yarn are alternately contacted, and then the second free roller twists the yarn to form the yarn. Focus. By passing the yarn through such a free guide roller group, there is an effect of bundling the single fibers that tend to protrude to the end of the yarn, but the yarn bundling effect is further increased, and the acrylic yarn on the package is increased. In order to stabilize the operation in the flameproofing step, it is necessary to pass these free guide roller groups in two or more stages, preferably three or more stages in order to stabilize the operation in the flameproofing process. In particular, when a plurality of yarns are combined and wound up, it is preferable to pass the combined yarns through the yarn collecting free guide roller group in order to improve the combining effect. The tension of the yarn when passing the yarn through the free guide roller group is more preferably 35 dyne / denier to 620 dyne / denier because the yarn focusing effect is large.
【0014】次に、図面にしたがって本発明の実施態様
を説明する。Next, an embodiment of the present invention will be described with reference to the drawings.
【0015】図1は従来の糸条巻き取り方法、図2は本
発明で用いる糸条巻き取り方法の一例で、いずれもアク
リル系糸条が巻き取られる直前の模式図である。図2の
中で1はアクリル系糸条、2はドライブステーション、
3がフリーガイドローラー群、4が巻き取られたパッケ
ージであり、この図ではフリーガイドローラー群を3段
用いた例を示している。3のフリーガイドローラー群を
パッケージ巻き取りの前までに多段で入れることにより
糸条集束効果を増大させることができる。FIG. 1 is an example of a conventional yarn winding method, and FIG. 2 is an example of the yarn winding method used in the present invention, both of which are schematic views immediately before the acrylic yarn is wound. In FIG. 2, 1 is an acrylic yarn, 2 is a drive station,
3 is a free guide roller group, and 4 is a package wound up. In this figure, an example using three stages of free guide roller groups is shown. The yarn collecting effect can be increased by inserting the free guide roller group No. 3 in multiple stages before winding the package.
【0016】[0016]
【実施例】以下実施例をあげて本発明の効果を具体的に
説明する。EXAMPLES The effects of the present invention will be specifically described with reference to the following examples.
【0017】(実施例1)アクリロニトリル99.6モ
ル%、イタコン酸0.4モル%からなる固有粘度[η]
が1.80のアクリル系重合体の19%DMSO溶液を
紡糸原液として、0.06mmφの孔数6000の口金
を用いて、DMSO60%、水40%からなる50℃の
凝固浴中に湿式紡糸を行い凝固糸を得た。該凝固糸を水
洗しながら熱水中で5倍に延伸し、さらに残存のDMS
Oを糸中0.01%以下になるまで水洗した後、シリコ
ーン系の油剤を付与し、150〜160℃で乾燥緻密化
を行った。引続いて加圧スチーム中で2.5倍延伸を加
えた後に再度乾燥し、6000フィラメント糸条を3本
合糸して、単繊維繊度0.7d、フィラメント数180
00フィラメント、糸条総繊度12600デニールの糸
条とし、図3に示すフリーガイドローラー群をその段数
を変更して通過せしめて後、巻き取り機で巻き取った。
また、比較のため、フリーガイドローラー群を用いない
で巻き取った場合についても実験を行った。巻き取り後
の糸条パッケージ上の糸幅および耐炎化したときの操業
安定性を調べた結果を表1に示す。Example 1 Intrinsic viscosity [η] consisting of 99.6 mol% acrylonitrile and 0.4 mol% itaconic acid
Was used as a spinning stock solution with a 19% DMSO solution of an acrylic polymer of 1.80, and a wet spinning was performed in a coagulation bath of 60% DMSO and 40% water at 50 ° C. using a spinneret with a hole number of 6000 and a diameter of 6000. The coagulated yarn was obtained. While the coagulated yarn was washed with water, it was drawn 5 times in hot water, and the remaining DMS was drawn.
After O was washed with water to 0.01% or less in the yarn, a silicone-based oil agent was applied and dried and densified at 150 to 160 ° C. Subsequently, after drawing 2.5 times in pressurized steam, it is dried again and three 6000 filament yarns are combined to obtain a single fiber fineness of 0.7d and a filament number of 180.
A filament having a total fineness of 12600 denier was used, and the filament was passed through the free guide roller group shown in FIG. 3 by changing the number of stages and then wound by a winder.
In addition, for comparison, an experiment was also performed in the case of winding without using the free guide roller group. Table 1 shows the results of examining the yarn width on the yarn package after winding and the operation stability when flame resistant.
【0018】表1より、フリーガイドローラー群を入れ
ないで巻き取ると糸幅が広がりすぎて耐炎化工程での糸
切れが多発した。しかしながらフリーガイドローラー群
を複数段入れることにより、巻き取りパッケージ上の糸
幅が狭まり、糸条集束効果が増して耐炎化工程での操業
が安定化することが明らかであった。From Table 1, when the roll was wound without the free guide roller group, the yarn width was too wide and the yarn breakage occurred frequently in the flameproofing process. However, it has been clarified that by inserting a plurality of free guide roller groups, the yarn width on the winding package is narrowed, the yarn focusing effect is increased, and the operation in the flameproofing process is stabilized.
【0019】[0019]
【表1】 (実施例2)実施例1と同様のアクリル系紡糸原液を用
い、孔径が0.1mmφの4000ホールの口金を用い
てDMSO35%、水65%からなる0℃の凝固浴中に
5mmの空気層を経て乾湿式紡糸を行い凝固糸を得た。
該凝固糸を水洗後、熱水中で3倍に延伸し(残存のDM
SOが糸中0.01%以下)、シリコーン系の油剤を付
与した後、170〜190℃で乾燥緻密化を行った。引
続いて加圧スチーム中で4倍延伸を加えた後に4000
フィラメント糸条を6本合糸した後、単繊維繊度1.0
d、フィラメント数24000フィラメント、糸条総繊
度24000デニールの糸条とし、図3に示すフリーガ
イドローラー群をその段数を変更して通過せしめて後、
巻き取り機で巻き取った。また、比較のため、フリーガ
イドローラー群を用いないで巻き取った場合についても
実験を行った。巻き取り後の糸条パッケージ上の糸幅お
よび耐炎化したときの操業安定性を調べた結果を表2に
示す。[Table 1] (Example 2) Using the same acrylic spinning dope as in Example 1 and using a 4000-hole spinneret with a hole diameter of 0.1 mmφ, a 5 mm air layer was placed in a 0 ° C. coagulation bath consisting of 35% DMSO and 65% water. After that, dry-wet spinning was performed to obtain a coagulated yarn.
The coagulated yarn was washed with water and then stretched 3 times in hot water (remaining DM
SO was 0.01% or less in the yarn), and after applying a silicone-based oil agent, it was dried and densified at 170 to 190 ° C. After applying a 4 times stretch in pressurized steam, 4000
After combining 6 filament yarns, single fiber fineness 1.0
d, the number of filaments is 24,000 filaments, the yarn has a total fineness of 24,000 denier, and after passing the free guide roller group shown in FIG.
I wound it up with a winder. In addition, for comparison, an experiment was also performed in the case of winding without using the free guide roller group. Table 2 shows the results of examining the yarn width on the yarn package after winding and the operation stability when flame resistant.
【0020】表2より、フリーガイドローラー群を複数
段入れることにより、巻き取りパッケージ上の糸幅が狭
まり、糸条集束効果が増して耐炎化工程での操業が安定
化することがわかる。なお、糸幅を狭くしすぎると、耐
炎化工程での操業性に問題はなかったが、集束性が上が
りすぎて耐炎化不足となり、炭化工程で毛羽が発生して
炭素繊維の品位が悪化する弊害があった。It can be seen from Table 2 that by inserting a plurality of free guide roller groups, the yarn width on the winding package is narrowed, the yarn focusing effect is increased, and the operation in the flameproofing process is stabilized. If the yarn width is too narrow, there was no problem in the operability in the flame resistance process, but the focusing property is too high and the flame resistance is insufficient, and fluff occurs in the carbonization process to deteriorate the quality of the carbon fiber. There was an evil.
【0021】[0021]
【表2】 [Table 2]
【0022】[0022]
【発明の効果】本発明の炭素繊維前駆体アクリル系糸条
パッケージにより、耐炎化工程などの後続する焼成工程
において、アクリル系糸条の溝付ローラーからの単繊維
はみ出しを抑制し、焼成工程で毛羽・糸切れのない安定
した操業性を得ることができる。また、本発明の炭素繊
維前駆体アクリル系糸条の巻き取り方法により、かかる
パッケージを簡便に得ることができる。EFFECT OF THE INVENTION The carbon fiber precursor acrylic yarn package of the present invention suppresses the protrusion of single fibers from the grooved roller of the acrylic yarn in the subsequent firing process such as the flameproofing process. It is possible to obtain stable operability without fluff or yarn breakage. Further, such a package can be easily obtained by the winding method of the carbon fiber precursor acrylic yarn of the present invention.
【図1】従来の製造方法を示した模式図である。FIG. 1 is a schematic view showing a conventional manufacturing method.
【図2】フリーガイドローラー群を3段通過させた、本
発明の製造方法の一例を示した模式図である。FIG. 2 is a schematic view showing an example of the manufacturing method of the present invention in which three stages of free guide rollers are passed.
【図3】本発明において用いる糸条集束用フリーガイド
ローラー群の一例を示す平面図である。FIG. 3 is a plan view showing an example of a yarn guide free guide roller group used in the present invention.
【図4】図3に示す糸条集束用フリーガイドローラー群
の側面図である。FIG. 4 is a side view of the yarn bundle free guide roller group shown in FIG. 3;
1:アクリル系糸条 2:ドライブステーション 3:フリーガイドローラー群 4:巻き取り糸条パッケージ 5:第1フリーローラー 6:第2フリーローラー 1: Acrylic yarn 2: Drive station 3: Free guide roller group 4: Winding yarn package 5: 1st free roller 6: 2nd free roller
Claims (3)
する炭素繊維前駆体アクリル系糸条が巻き取られたパッ
ケージにおいて、該パッケージ上の前記アクリル系糸条
の糸幅が、0.25〜0.6mm/1000デニールで
あることを特徴とする、炭素繊維前駆体アクリル系糸条
パッケージ。1. A package in which a carbon fiber precursor acrylic yarn having a total fineness of yarn of 12,000 denier or more is wound up, and the yarn width of the acrylic yarn on the package is 0.25 to 0.25. A carbon fiber precursor acrylic yarn package characterized by having a denier of 0.6 mm / 1000.
ドローラー群に少なくとも2段通過させて後、巻き取り
機により巻き取ることを特徴とする、炭素繊維前駆体ア
クリル系糸条の巻き取り方法。2. A winding of a carbon fiber precursor acrylic-based yarn, characterized in that the acrylic-based yarn is passed through at least two stages of free guide roller groups for yarn focusing and then wound up by a winder. How to take.
ーラー軸を走行糸条に対して実質的に直角かつ互いに平
行になるよう配置した複数本の第1フリーローラーと、
該第1フリーローラーとはそのローラー軸を実質的に直
角に配置した少なくとも1本の第2フリーローラーとか
らなるものであって、かつ、該糸条集束用フリーガイド
ローラー群に走行糸条を通過せしめるに際し、その複数
本の第1フリーローラーに該糸条の表裏を交互に接触さ
せて後、第2フリーローラーによりひねりを与えるよう
通過せしめることを特徴とする、請求項2記載の炭素繊
維前駆体アクリル系糸条の巻き取り方法。3. A plurality of first free rollers in which a yarn focusing free guide roller group is arranged such that a roller shaft thereof is substantially perpendicular to a traveling yarn and parallel to each other.
The first free roller is composed of at least one second free roller having its roller axis arranged substantially at right angles, and the traveling yarn is provided in the yarn focusing free guide roller group. The carbon fiber according to claim 2, wherein, when passing, the plurality of first free rollers are alternately brought into contact with the front and back of the yarn, and then the second free roller is passed so as to give a twist. A method of winding a precursor acrylic yarn.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP06434996A JP3562115B2 (en) | 1996-03-21 | 1996-03-21 | Carbon fiber precursor acrylic yarn package and method for winding carbon fiber precursor acrylic yarn |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP06434996A JP3562115B2 (en) | 1996-03-21 | 1996-03-21 | Carbon fiber precursor acrylic yarn package and method for winding carbon fiber precursor acrylic yarn |
Publications (2)
Publication Number | Publication Date |
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JPH09255227A true JPH09255227A (en) | 1997-09-30 |
JP3562115B2 JP3562115B2 (en) | 2004-09-08 |
Family
ID=13255686
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JP06434996A Expired - Lifetime JP3562115B2 (en) | 1996-03-21 | 1996-03-21 | Carbon fiber precursor acrylic yarn package and method for winding carbon fiber precursor acrylic yarn |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005247582A (en) * | 2004-02-02 | 2005-09-15 | Toray Ind Inc | Method of manufacturing flat yarn package and manufacturing device |
JP2012154000A (en) * | 2011-01-27 | 2012-08-16 | Toray Ind Inc | Carbon fiber for molding filament winding and method for manufacturing the same |
CN105696094A (en) * | 2016-04-01 | 2016-06-22 | 三河市浩运盛跃碳纳米科技有限公司 | System and method for drawing carbon nanotube fibers |
JP2017160563A (en) * | 2016-03-10 | 2017-09-14 | 東レ株式会社 | Precursor fiber bundle for carbon fiber, manufacturing method therefor and manufacturing method of carbon fiber |
KR101827242B1 (en) * | 2015-05-08 | 2018-02-07 | 도레이 카부시키가이샤 | Manufacturing method in the coarse yarn and method for producing carbon fiber using the obtained coarse yarn yarn |
-
1996
- 1996-03-21 JP JP06434996A patent/JP3562115B2/en not_active Expired - Lifetime
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005247582A (en) * | 2004-02-02 | 2005-09-15 | Toray Ind Inc | Method of manufacturing flat yarn package and manufacturing device |
JP2012154000A (en) * | 2011-01-27 | 2012-08-16 | Toray Ind Inc | Carbon fiber for molding filament winding and method for manufacturing the same |
KR101827242B1 (en) * | 2015-05-08 | 2018-02-07 | 도레이 카부시키가이샤 | Manufacturing method in the coarse yarn and method for producing carbon fiber using the obtained coarse yarn yarn |
EP3290549A4 (en) * | 2015-05-08 | 2018-07-04 | Toray Industries, Inc. | Method for manufacturing spun thread bundle, and method for manufacturing carbon fiber in which resulting spun thread bundle is used |
US10464776B2 (en) | 2015-05-08 | 2019-11-05 | Toray Industries, Inc. | Method for manufacturing combined yarn bundle, and method for manufacturing carbon fiber in which resulting combined yarn bundle is used (as amended) |
JP2017160563A (en) * | 2016-03-10 | 2017-09-14 | 東レ株式会社 | Precursor fiber bundle for carbon fiber, manufacturing method therefor and manufacturing method of carbon fiber |
CN105696094A (en) * | 2016-04-01 | 2016-06-22 | 三河市浩运盛跃碳纳米科技有限公司 | System and method for drawing carbon nanotube fibers |
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