JPS62171871A - Taking-up of pitch group carbon fiber - Google Patents
Taking-up of pitch group carbon fiberInfo
- Publication number
- JPS62171871A JPS62171871A JP61012716A JP1271686A JPS62171871A JP S62171871 A JPS62171871 A JP S62171871A JP 61012716 A JP61012716 A JP 61012716A JP 1271686 A JP1271686 A JP 1271686A JP S62171871 A JPS62171871 A JP S62171871A
- Authority
- JP
- Japan
- Prior art keywords
- bobbin
- angle
- winding
- fiber
- pitch
- 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
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 28
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 28
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 238000004804 winding Methods 0.000 claims description 39
- 238000000034 method Methods 0.000 claims description 10
- 239000000835 fiber Substances 0.000 abstract description 51
- 230000007306 turnover Effects 0.000 abstract 1
- 239000011295 pitch Substances 0.000 description 25
- 239000010410 layer Substances 0.000 description 13
- 239000000047 product Substances 0.000 description 10
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 238000003763 carbonization Methods 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000005087 graphitization Methods 0.000 description 2
- 229920002239 polyacrylonitrile Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000238557 Decapoda Species 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011304 carbon pitch Substances 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000011300 coal pitch Substances 0.000 description 1
- 239000011294 coal tar pitch Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 239000000025 natural resin Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Winding Of Webs (AREA)
- Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
- Inorganic Fibers (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はピッチ系炭素繊維の巻〔０方法に関するもので
１Ｌよ〕詳しくは高弾性率のピッチ系炭素繊維の製品ボ
ビンとしての巻き取シ方法に関するものである。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to winding of pitch-based carbon fiber [0 method, 1L] Specifically, the present invention relates to a winding system of pitch-based carbon fiber with a high modulus of elasticity as a product bobbin. It is about the method.
（従来の技術）
炭素繊維は高性能複合材料のフィラー繊維として近年注
目されている。(Prior Art) Carbon fiber has recently attracted attention as a filler fiber for high-performance composite materials.
一般に炭素繊維の製造法としては、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、これらの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繊維を不融化処理もしくは耐
炎化処理し、次いで炭化焼成処理、必要に応じて黒鉛化
処理することによシ製造される。Generally, carbon fiber is produced by using carbon pitch, polyacrylonitrile, cellulose, polyvinyl alcohol, etc. as raw materials, wet- or dry-melt spinning these raw materials, and treating the resulting organic polymer fibers to be infusible or flame-resistant. Then, it is manufactured by carbonization firing treatment and, if necessary, graphitization treatment.
そして、これらの炭素繊維を最終的に製品ボビンとする
場合、他の合成繊維や天然繊維等と同様にボビンに連続
長繊維束をボビンの巻き取シ厚み方向に重な９合うよう
に多層状態に巻き取シ、最終製品とするのが一般的に行
なわれる。When these carbon fibers are finally made into product bobbins, like other synthetic fibers and natural fibers, continuous long fiber bundles are wound onto the bobbin in a multi-layered state so that they overlap in the thickness direction. It is generally rolled up and made into a final product.
しかしながら、ボビン等に対し、繊維束を多層状態で巻
き取る場合、巻き取シ張力のため、上層側に巻き取られ
る繊維束が下層側の繊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ために巻
き取ジ速度ケ早めるとよ）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シ厚みを
大きくするほど繊維層はよシ大きな張力を受けることと
なシ、上層側の繊維束が陥没し易くなる。そしてかかる
状況が発生した巻き取シ状態のボビンから繊維束を巻き
戻す場合、上７＃側繊維束が下層側繊維層に陥没した個
所において、繊維束に対し、異常に大きな張力が加わる
ことによシ、ボビン離れが不良となったシ、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シ、巻き戻した繊維の品質低下した
シする問題があった。However, when winding a fiber bundle in a multi-layered state onto a bobbin or the like, a situation often occurs in which the fiber bundle wound on the upper layer side collapses into the lower fiber layer due to the winding tension. This situation is more likely to occur due to the increase in tension (if the winding speed is increased to improve productivity), and as the winding thickness is increased to obtain a longer fiber length, the fiber layer Otherwise, the fiber bundles on the upper layer side will easily collapse if subjected to large tension. When rewinding a fiber bundle from a bobbin in the winding state where such a situation has occurred, an abnormally large tension will be applied to the fiber bundle at the location where the upper 7# side fiber bundle collapses into the lower side fiber layer. However, problems such as failure to separate the bobbin, thread breakage, fuzzing, etc., making it impossible to rewind stably, and deterioration of the quality of the unwound fibers may occur. there were.
かかる問題は合成繊維や天然繊維などのように、繊維自
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 hardly poses a problem when the fiber itself is strong, such as synthetic fiber or natural fiber.
そこで、従来においても多層巻き取シ時に上層側の繊維
束が、下層側の繊維層に陥没するのを防止するため、ボ
ビン上で繊維束をトラバースし、上層側繊維束が下層繊
維束に対して交互に交叉するようにして巻き取ることや
、これに加えて定速フィード機構とダンサ−ローラーと
の組合せ等によシ張力を漸減させながら巻きとることが
行なわれている。Therefore, conventionally, in order to prevent the upper fiber bundle from collapsing into the lower fiber layer during multilayer winding, the fiber bundle is traversed on the bobbin, and the upper fiber bundle is moved against the lower fiber bundle. In addition to this, winding is carried out in such a way that the tension is gradually reduced by a combination of a constant speed feed mechanism and a dancer roller.
（発明が解決しようとする問題点）
しかしながら、かかる巻き取シ方法を高弾性率を有する
ピッチ糸炭素繊維に適用すると、ポリアクリロニトリル
等を原料にした炭素繊維とは異なシ、綾角の大きな製品
ボビンから巻き戻しする際に、高弾性率ピッチ系炭素繊
維特有の曲げに対する弱さのためにボビン上の繊維束の
屈曲角度に耐え得ず、繊維が切れた）、折れたシする問
題があった。(Problems to be Solved by the Invention) However, when this winding method is applied to pitch yarn carbon fibers having a high elastic modulus, products with large wind angles differ from carbon fibers made from polyacrylonitrile or the like. When unwinding from the bobbin, due to the unique bending weakness of high modulus pitch carbon fibers, the fiber bundle on the bobbin cannot withstand the bending angle, resulting in fiber breakage). Ta.
（問題点を解決するための手段）
そこで、本発明者等は上記問題点を解決するべく鋭意検
討を行なった結果、高弾性率のピッチ系炭素繊維とボビ
ンに巻き取るに際し、特定角度の綾角で、かつ特定角度
のテーパ角でテーバエンド巻きに巻き取ることにより上
記問題点が解消できることを見い出し本発明に到達した
。(Means for Solving the Problems) Therefore, as a result of intensive studies to solve the above problems, the inventors of the present invention found that when winding pitch-based carbon fibers with a high modulus of elasticity onto a bobbin, the twill twill at a specific angle. The present inventors have discovered that the above-mentioned problems can be solved by winding the material in a tapered end manner at a specific taper angle.
すなわち、本発明の目的は高弾性率のピッチ系炭素繊維
束を製品ボビンから糸切れ、ケバ立ち等が発生すること
なく巻き戻しでき５また巻き戻し時の糸くずれが々く、
更には製品ボビンとしての見栄えのよいピッチ系炭素繊
維の巻き取シ方法を提供するものである。そしてその目
的は引張）弾性率がｅ Ｏｔｏｎ ／−以上のピッチ系
炭素繊維をボビンに巻き取るに際し、綾角を０、／〜コ
ｊ０ とし、かつテーパ角１０〜７０°でテーパーエ
ンド巻きに巻き取ることによシ容易に達成される。That is, an object of the present invention is to be able to unwind a pitch-based carbon fiber bundle with a high elastic modulus from a product bobbin without causing yarn breakage or fuzzing, etc.5, and to prevent yarn breakage during unwinding.
Furthermore, the present invention provides a method for winding pitch-based carbon fibers that look good as product bobbins. The purpose of this is to wind pitch-based carbon fiber with a tensile modulus of elasticity of e Oton /- or more onto a bobbin, with a winding angle of 0, / ~ coj0, and a tapered end winding with a taper angle of 10 to 70°. This is easily achieved by taking.
以下、本発明の詳細な説明するに、本発明に用いられる
ピッチ系炭素繊維は下記の様にして製造される。Hereinafter, the present invention will be described in detail. The pitch-based carbon fiber used in the present invention is manufactured as follows.
すなわち、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罠よ
って得られる高分子ｉ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。That is, coal tar pitch, coal-based pitch such as liquefied coal, various petroleum-based pitches, and polymeric i-formed pitch obtained by carbonizing synthetic resins or natural resins are used as spinning pitches according to well-known methods. The molten spinning pitch is spun out from a spinneret into a gas phase 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、７３０〜ダ００℃の温度にｓ分〜７０時間不融
化処理することによって不融化繊維束が得られる。得ら
れた不融化繊維束−は不活性雰囲気回申、ＳＯＯ〜／１
００℃で炭化処理、更に８袂に応じて−０００〜−ざ０
０℃で黒鉛化処理されて目的のピッチ系炭素繊維が製造
される。An infusible fiber bundle is obtained by infusible treatment at a temperature of 730 to 00° C. for s minutes to 70 hours in an oxidizing atmosphere such as air, nitrogen oxide, halogen, sulfur dioxide gas, etc. The obtained infusible fiber bundle was placed in an inert atmosphere, SOO~/1
Carbonization treatment at 00°C, then -000 to -za0 depending on the 8 layers.
The target pitch-based carbon fiber is produced by graphitization treatment at 0°C.
特に本発明におりては、上記方法によシ得られたピッチ
糸炭素繊維のうち、引張シ弾性率がｘｉ ｏ ｔｏｎ／
−以上の高弾性率のピッチ系炭素繊維を対象にするもの
でア）、更に伸度が７％以下のピッチ系炭素繊維を対象
とするものでおる。In particular, in the present invention, the pitch yarn carbon fiber obtained by the above method has a tensile modulus of xio ton/
- This method targets pitch-based carbon fibers with a high elastic modulus of 7% or higher, and (a) also targets pitch-based carbon fibers with an elongation of 7% or less.
なお、本発明のピッチ系炭素繊維とは炭化処理されて得
られた炭素繊維及び更に黒鉛化処理された黒鉛繊維を含
むものとする。Note that the pitch-based carbon fibers of the present invention include carbon fibers obtained by carbonization treatment and graphite fibers further graphitized.
本発明においては、かかる高弾性率のピッチ系炭素繊維
をボビンに巻き取るに際し、綾角を０．７〜二Ｓ０
としテーパ角１０〜７０°でテーパーエンド巻きに巻き
取シを行なう。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）合わな因ようにして所定の綾角
で一層で巻き取った後、折シ返しを行ない同様にして繊
維束を一層で巻き取る。In the present invention, when winding such high modulus pitch carbon fiber onto a bobbin, the helix angle is set to 0.7 to 2S0.
Winding is performed at a taper end winding with a taper angle of 10 to 70°. Specifically, each fiber bundle is wound from one end of the bobbin to the other end in a single layer at a predetermined winding angle so that the fiber bundles overlap each other, and then the fiber bundles are folded back and folded in the same manner. Roll up in one layer.
重ね巻きする際、同一方向の下糸との交差角が００７０
以上となるように綾角を選択することが好ましい。これ
によ）巻き取られる繊維束が、その直下の下糸と平行に
重な夛あうことを防止することができる。綾角の変更は
トラバース速度を変更することによシ行なうことができ
る。When overlapping, the intersection angle with the bobbin thread in the same direction is 0070
It is preferable to select the winding angle so as to satisfy the above. This can prevent the fiber bundle being wound up from stacking up parallel to the bobbin thread directly below it. Changing the wind angle can be done by changing the traverse speed.
トラバース速度はステッピングモーターとギア・の組合
せ等によ多口動的に容易に行なうことができる。The traverse speed can be easily controlled dynamically using a combination of a stepping motor and gears.
その際下層側の繊維束の少し内側からテーパ角が上記範
囲内となるように折）返しを行なう。At this time, the fiber bundle on the lower layer side is folded slightly from the inside so that the taper angle is within the above range.
かかる操作をくシ返し行なうことによシ連続長繊維状の
繊維束を所定のテーパ角を有するテーパーエンド巻きに
多層巻き取りを行なうものである。By repeating this operation, the continuous long fiber bundle is wound in multiple layers into a tapered end winding having a predetermined taper angle.
ここで綾角とはボビンの半径方向に対する巻き取り繊維
束の有する角度（第１図の／に相当）を意味し、テーパ
角とはボビンの軸方向に対する巻き取シ繊維來の有する
角度（第１図の−に相当）を意味するものである。Here, the wind angle means the angle that the winding fiber bundle has with respect to the radial direction of the bobbin (corresponding to / in Fig. 1), and the taper angle means the angle that the winding fiber bundle has with respect to the axial direction of the bobbin (corresponding to / in Fig. 1). (equivalent to - in Figure 1).
綾角としては０．／〜二ＳＯ１好ましくは３〜／！０と
なるように行なうのがより０綾角を上記範囲よシ大きく
すると、折多返しの際繊維束に対し曲シ角度がつきすぎ
て糸切れ等を生じたシ、解舒時の横ずれによシ糸束を損
傷したシするので好ましくない。ｔた小さいと、繊維束
が重な）やすく巻き戻しの際にクバ、糸切れ等を生じ好
ましくない。0. /~2SO1 preferably 3~/! It is better to do it so that the wind angle is 0. If the wind angle is set to be larger than the above range, the bending angle will be too high for the fiber bundle during folding, resulting in yarn breakage, etc., and lateral slippage during unwinding. This is not preferable because it may damage the weft thread bundle. If the diameter is too small, the fiber bundles tend to overlap, resulting in curling, thread breakage, etc. during unwinding, which is undesirable.
また、テーパ角としては１０〜りＯＯ，好ましくは／Ｓ
〜３００となるようにテーパーエンド巻きとする。テー
パ角を上記範囲よシ大きくすると、巻き崩れが生じやす
く好ましくない。また、上記範囲よ）小さくすると巻き
取シ量が少なくなり製品ボビンとして好ましくない。In addition, the taper angle is 10 to 000, preferably /S
Taper end winding is performed so that the thickness is ~300. If the taper angle is made larger than the above range, the winding tends to collapse, which is not preferable. Moreover, if it is smaller than the above range, the amount of winding will decrease, which is not preferable as a product bobbin.
ボビンの大きさとしては繊維束の巻き取シ量や巻き取り
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７ｏＮ、ｔｏｏｌ、長さが１００〜３！ｒＯｖａｓ
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 and winding speed of the fiber bundle, but the diameter of the bobbin is usually 7 oN, the tool, and the length are 100 to 3 mm. rOvas
It is convenient to use something in the shape of a paper tube.
ボビンへの巻き取りピッチは、ボビン径と綾角の大きさ
によって一義的に定まる。例えばボビン径が３インチ（
り６．−藺）であるとき、綾角をｌＯｏとすると繊維束
の芯・思量の距離はλ、ｌＩ−となる。The winding pitch onto the bobbin is uniquely determined by the bobbin diameter and the winding angle. For example, the bobbin diameter is 3 inches (
6. - 藺), when the wind angle is lOo, the distance between the core and the fiber bundle is λ, lI-.
更に繊維束の糸幅は単繊維の太さ、集束数等により変わ
シ１例えば１０μ単糸で集束本数／ ０００本の場合は
ｏ、ａ −ｏ、ｓ園、同じく集束本数ｂｏｏｏ本の場合
はコ、Ｓ〜３ＩＩｌ＋ｌ＋となる。従って、同一方向の
直下の糸束と重なシあわないように、すなわちピッチが
糸幅よシ大きくなるように前記綾角を０．／〜ｊｊ’の
範囲から適宜に調整することが重要である。Furthermore, the yarn width of the fiber bundle varies depending on the thickness of the single fibers, the number of bundles, etc. 1. For example, if the number of bundles is 10 μ single yarn / 000, it is o, a - o, s, and similarly, if the number of bundles is boo, ko, S~3IIl+l+. Therefore, the helix angle should be set to 0.0 to avoid overlapping with the yarn bundle immediately below in the same direction, that is, so that the pitch is larger than the yarn width. It is important to make appropriate adjustments from the range of / to jj'.
特に繊維束を高張力でボビンに巻き取る場合には、同一
方向の直下の下糸との交差角力１０．１０以以上外るよ
うに綾角を変更するのが好ましい。In particular, when winding a fiber bundle onto a bobbin with high tension, it is preferable to change the helix angle so that the cross angle force with the lower thread directly below in the same direction is 10.10 or more.
同一方向の直下の下糸の綾角よ）も０１１０以上綾角を
大きくしたシ、小さくした）することによって、上層側
に巻き取られる繊維束７５に下層（１１の繊維層に陥没
する状況を充分防止することカニできる。By increasing or decreasing the winding angle of the bobbin thread directly under the same direction by 0110 or more, the situation where the fiber bundle 75 wound on the upper layer side collapses into the lower layer (fiber layer 11) is prevented. It is enough to prevent crabs.
各層毎の綾角の変更の度合は０．７０以上、好ましくは
Ｏ，コル８０程度とするのがよい。The degree of change in the helix angle for each layer is preferably 0.70 or more, preferably about 80.
（効 果）
以上のように本発明によれば、連続長繊維状のピッチ系
炭素繊維を製品ボビンとして形成する際に特定角度の綾
角とテーノく角とでテーノ（−エンド巻きにすることに
より低張力下でも得られる製品ボビンの見栄えがよく、
また、巻き戻し時に糸切れ等を発生せず、巻き崩れのな
い、極めて良好な製品ボビンを得ること２５！できる。(Effects) As described above, according to the present invention, when forming pitch-based carbon fibers in the form of continuous long fibers into a product bobbin, it is possible to perform teno (-end winding) with a wind angle and a wind angle of a specific angle. This allows the product bobbin to look good even under low tension.
Also, to obtain an extremely good product bobbin that does not cause thread breakage or the like during unwinding and does not have loose winding.25! can.
第１図は製品ボビンの巻き形状を示したものである。
／：綾角 、２：テーパ角
、？： ピッチ系炭素繊維 り ：ボビン出鳳人 三菱
化成工業株式会社FIG. 1 shows the winding shape of the product bobbin. /: Aya angle, 2: Taper angle, ? : Pitch-based carbon fiber Ri : Bobbin maker Mitsubishi Chemical Industries, Ltd.
Claims (3)
チ系炭素繊維をボビンに巻き取るに際し、綾角を０．１
〜２５°とし、かつテーパ角１０〜７０°でテーパーエ
ンド巻きに巻き取ることを特徴とするピッチ系炭素繊維
の巻き取り方法。(1) When winding pitch-based carbon fiber with a tensile modulus of 40 ton/mm^2 or more onto a bobbin, the helix angle should be set to 0.1.
A method for winding pitch-based carbon fiber, characterized by winding it in a tapered end winding with a taper angle of ~25° and a taper angle of 10-70°.
特徴とする特許請求の範囲第１項記載の方法。(2) The method according to claim 1, wherein the elongation of the pitch-based carbon fiber is 1% or less.
．１°以上となるように綾角を選択することを特徴とす
る特許請求の範囲第１項記載の方法。(3) When overlapping, the crossing angle with the bobbin thread in the same direction is 0.
．． A method according to claim 1, characterized in that the helix angle is selected to be 1° or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61012716A JPS62171871A (en) | 1986-01-23 | 1986-01-23 | Taking-up of pitch group carbon fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61012716A JPS62171871A (en) | 1986-01-23 | 1986-01-23 | Taking-up of pitch group carbon fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62171871A true JPS62171871A (en) | 1987-07-28 |
Family
ID=11813153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61012716A Pending JPS62171871A (en) | 1986-01-23 | 1986-01-23 | Taking-up of pitch group carbon fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62171871A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998024721A1 (en) * | 1996-12-05 | 1998-06-11 | Toray Industries, Inc. | Carbon fiber package and carbon fiber package body |
| JP2015030555A (en) * | 2013-07-31 | 2015-02-16 | 三菱瓦斯化学株式会社 | Wound article |
| WO2020050156A1 (en) * | 2018-09-03 | 2020-03-12 | 三菱瓦斯化学株式会社 | Wound body and wound body manufacturing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58212563A (en) * | 1982-06-02 | 1983-12-10 | Toray Ind Inc | Package of graphite thread and method of manufacture |
| JPS6151464A (en) * | 1984-08-14 | 1986-03-13 | Teijin Ltd | Cheese package of temporary twist crimped yarn |
-
1986
- 1986-01-23 JP JP61012716A patent/JPS62171871A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58212563A (en) * | 1982-06-02 | 1983-12-10 | Toray Ind Inc | Package of graphite thread and method of manufacture |
| JPS6151464A (en) * | 1984-08-14 | 1986-03-13 | Teijin Ltd | Cheese package of temporary twist crimped yarn |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998024721A1 (en) * | 1996-12-05 | 1998-06-11 | Toray Industries, Inc. | Carbon fiber package and carbon fiber package body |
| JP2015030555A (en) * | 2013-07-31 | 2015-02-16 | 三菱瓦斯化学株式会社 | Wound article |
| WO2020050156A1 (en) * | 2018-09-03 | 2020-03-12 | 三菱瓦斯化学株式会社 | Wound body and wound body manufacturing method |
| JP2020037456A (en) * | 2018-09-03 | 2020-03-12 | 国立大学法人岐阜大学 | Winding body, and manufacturing method of winding body |
| CN112638799A (en) * | 2018-09-03 | 2021-04-09 | 三菱瓦斯化学株式会社 | Wound body and method for manufacturing wound body |
| US11834294B2 (en) | 2018-09-03 | 2023-12-05 | Mitsubishi Gas Chemical Company, Inc. | Wound body and method for manufacturing wound body |
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