JP2001181928A - Method for producing polyoxymethylene filament - Google Patents
Method for producing polyoxymethylene filamentInfo
- Publication number
- JP2001181928A JP2001181928A JP36715499A JP36715499A JP2001181928A JP 2001181928 A JP2001181928 A JP 2001181928A JP 36715499 A JP36715499 A JP 36715499A JP 36715499 A JP36715499 A JP 36715499A JP 2001181928 A JP2001181928 A JP 2001181928A
- Authority
- JP
- Japan
- Prior art keywords
- filament
- stretching
- liquid bath
- pressurized fluid
- polyoxymethylene
- 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
- -1 polyoxymethylene Polymers 0.000 title claims abstract description 16
- 229920006324 polyoxymethylene Polymers 0.000 title claims abstract description 15
- 229930040373 Paraformaldehyde Natural products 0.000 title claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 239000012530 fluid Substances 0.000 claims abstract description 33
- 239000012770 industrial material Substances 0.000 abstract description 7
- 230000000704 physical effect Effects 0.000 abstract description 3
- 238000007664 blowing Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 18
- 238000010438 heat treatment Methods 0.000 description 11
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 10
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 9
- 238000005507 spraying Methods 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 235000011187 glycerol Nutrition 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000000155 melt Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000002074 melt spinning Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 229920012196 Polyoxymethylene Copolymer Polymers 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 206010061592 cardiac fibrillation Diseases 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000002600 fibrillogenic effect Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
Landscapes
- Artificial Filaments (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ベルト、ネット、
フィルター、釣り糸、漁網、ロープ等の産業資材用途に
用いることができるポリオキシメチレンフィラメントの
製造方法に関するものである。TECHNICAL FIELD The present invention relates to a belt, a net,
The present invention relates to a method for producing a polyoxymethylene filament that can be used for industrial materials such as a filter, a fishing line, a fishing net, and a rope.
【０００２】[0002]
【従来の技術】従来から、溶融紡出した熱可塑性ポリマ
ーの繊維状溶融物を冷却固化後、延伸および熱処理を行
うことにより用途に適した糸質性能を有するフィラメン
トを得ることは周知の技術である。2. Description of the Related Art It is well known that a fibrous melt of a melt-spun thermoplastic polymer is cooled and solidified, and then subjected to drawing and heat treatment to obtain a filament having a yarn quality suitable for a use. is there.
【０００３】フィラメント径の大きなフィラメントの延
伸方法としては、通常の溶融紡糸法により溶融紡出され
たフィラメントを一旦冷却固化後、加熱した水またはエ
チレングリコール、グリセリン等を満たした液体浴に浸
し、その液体浴前後に装備したローラ群を使用して、ロ
ーラ群の回転数に差をつけることで、液体浴中でフィラ
メントの延伸を行う方法が行われている。[0003] As a method of drawing a filament having a large diameter, a filament melt-spun by a usual melt spinning method is cooled and solidified, and then immersed in heated water or a liquid bath filled with ethylene glycol, glycerin or the like. A method of drawing a filament in a liquid bath by using a roller group provided before and after the liquid bath and making a difference in the number of rotations of the roller group has been performed.
【０００４】この方法では、フィラメントの延伸点は液
体浴中の任意の位置あるいは液体浴外へ移動が起こりや
すく、延伸方向に対して不均一な繊維径を示し、さらに
この不均一な繊維径に起因して、物理的性質の低下ある
いはバラツキ等を引き起こしやすい。さらに、フィラメ
ント径が大きいものほど、延伸を行う際にフィラメント
表面のみ加熱され、フィラメント中心部は加熱不足とな
り、糸切れ等が起こり、目標の糸質性能を示すフィラメ
ントを得ることが困難になるという問題があった。In this method, the drawing point of the filament easily moves to an arbitrary position in the liquid bath or out of the liquid bath, and shows a non-uniform fiber diameter in the drawing direction. For this reason, physical properties are likely to be reduced or varied. Furthermore, the larger the filament diameter, the more the filament surface is heated during stretching, the lower the center of the filament, the less the heating occurs, the yarn breaks, etc., and it becomes more difficult to obtain a filament having the target yarn quality performance. There was a problem.
【０００５】ポリオキシメチレンフィラメントの延伸方
法として、上記の方法による検討もなされているが、上
記の問題点に加えて、ポリオキシメチレンは結晶化速度
が速く、結晶化度も高くなってしまう結果、延伸方向に
裂けるフィブリル化現象やフィラメントが切断する現象
が起こりやすい。また、そのような現象が発現しない場
合でもフィラメント中にミクロボイドやクラックが発生
し、得られるフィラメントの機械的性質が低下するとい
う問題が生じる。Although the above method has been studied as a method for drawing a polyoxymethylene filament, in addition to the above problems, polyoxymethylene has a high crystallization speed and a high degree of crystallinity. In addition, a fibrillation phenomenon that tears in the stretching direction or a phenomenon that the filament is cut easily occurs. In addition, even when such a phenomenon does not occur, microvoids and cracks are generated in the filament, which causes a problem that the mechanical properties of the obtained filament are deteriorated.
【０００６】これに対して、各種の改良を加えた延伸方
法が提案されている。例えば、特公昭55-22566号公報に
は、延伸する温度を規定する方法、特開昭58-109617号
公報、特開昭59-106921号公報には、延伸工程で外部加
熱を併用しながら誘電的に加熱を行う方法、特開昭60-5
2618号公報には、紡出した糸条を一度巻き取った後、低
速にて延伸を行う方法、特開昭60-183122号公報には、
加圧流体中で高延伸を行う方法等が記載されている。On the other hand, a stretching method with various improvements has been proposed. For example, Japanese Patent Publication No. 55-22566 discloses a method for defining the stretching temperature, and Japanese Patent Application Laid-Open No. 58-109617 and Japanese Patent Application Laid-Open No. Heating method, JP-A-60-5
No. 2618 discloses a method in which the spun yarn is once wound and then stretched at a low speed.
A method for performing high stretching in a pressurized fluid is described.
【０００７】しかしながら、特公昭55-22566号公報の方
法では、得られるフィラメントの機械的物性が不充分で
あり、産業資材用途に使用することができなかった。特
開昭58-109617号公報、特開昭59-106921号公報の方法で
は、フィラメントの内部まで加熱し、延伸工程における
ボイド等の発生が抑制できるという利点はあるが、誘電
加熱に要する時間が長くかかり、製造速度が遅いという
問題が生じていた。However, according to the method disclosed in Japanese Patent Publication No. 55-22566, the filaments obtained have insufficient mechanical properties, and cannot be used for industrial materials. JP-A-58-109617 and JP-A-59-106921 have the advantage that heating to the inside of the filament can suppress the occurrence of voids and the like in the stretching step, but the time required for dielectric heating is It takes a long time and the production speed is slow.
【０００８】また、特開昭60-52618号公報の方法では低
速で延伸工程を行う結果、製造速度が遅く、操業性が悪
いという問題があった。特開昭60-183122号公報の方法
では、加圧することでフィラメント内ボイドの抑制が可
能と利点はあるが、延伸ゾーン全体に高圧に対する耐性
が要求されるため装置が大きくなるとともにハンドリン
グも困難な面があるという問題があった。In the method disclosed in Japanese Patent Application Laid-Open No. 60-52618, there is a problem that as a result of performing the stretching step at a low speed, the production speed is low and the operability is poor. In the method of JP-A-60-183122, there is an advantage that it is possible to suppress voids in the filament by applying pressure, but the apparatus becomes large and handling is difficult because resistance to high pressure is required throughout the stretching zone. There was a problem that there is a side.
【０００９】[0009]
【発明が解決しようとする課題】本発明は、上記のよう
な問題点を解決し、フィラメントを十分に加熱して延伸
点を固定しながら均一に延伸することができ、産業資材
用途に使用できる糸質物性を有するフィラメントを、工
業的に生産可能な速度で得ることが可能なポリオキシメ
チレンフィラメントの製造方法を提供することを技術的
な課題とするものである。DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems and can uniformly stretch the filament while fixing the stretching point by sufficiently heating the filament, and can be used for industrial materials. It is a technical object of the present invention to provide a method for producing a polyoxymethylene filament which can obtain a filament having a yarn property at a speed which can be industrially produced.
【００１０】[0010]
【課題を解決するための手段】本発明者は、上記課題を
解決するために検討した結果、本発明に到達した。すな
わち、本発明は、（Ｔｍ−１００）〜（Ｔｍ−１０）℃
の液体浴中で（Ｔｍ−５０）〜（Ｔｍ＋５０）℃の加圧
流体をフィラメントに対して円周方向から吹き付け、熱
延伸を行うことを特徴とするポリオキシメチレンフィラ
メントの製造方法を要旨とするものである。Means for Solving the Problems The present inventor has studied to solve the above-mentioned problems, and as a result, has arrived at the present invention. That is, the present invention relates to (Tm-100) to (Tm-10) ° C.
A method for producing a polyoxymethylene filament, characterized in that a pressurized fluid at (Tm-50) to (Tm + 50) ° C. is sprayed from a circumferential direction to the filament in a liquid bath, and hot drawing is performed. Things.
【００１１】以下、本発明を詳細に説明する。本発明に
おけるポリオキシメチレンは、ホモポリマーでもコポリ
マーよいが、特に、溶融過程における熱分解を抑制する
目的で-C-C-結合を主鎖中に有するエチレンオキサイド
成分等を共重合したコポリマーが好ましく用いられる。
そして、溶融粘度は、3000〜20000poiseが好ましく、さ
らに好ましくは、5000〜15000poiseである。Hereinafter, the present invention will be described in detail. The polyoxymethylene in the present invention may be a homopolymer or a copolymer, but in particular, a copolymer obtained by copolymerizing an ethylene oxide component having a -CC- bond in the main chain for the purpose of suppressing thermal decomposition in the melting process is preferably used. .
The melt viscosity is preferably from 3,000 to 20,000 poise, and more preferably from 5,000 to 15,000 poise.
【００１２】ポリオキシメチレンポリマーの溶融粘度が
3000poise未満であると、得られるフィラメントの糸質
物性が低くなるとともに、ノズル孔を通過する吐出線速
度が高くなる結果、製糸性が悪化する。20000poiseを超
えると、溶融時の流動性が低下し、製糸性が悪化する。The melt viscosity of the polyoxymethylene polymer is
If it is less than 3000 poise, the obtained filaments have poor yarn properties, and the ejection linear velocity passing through the nozzle holes increases, resulting in poor spinnability. If it exceeds 20000 poise, the fluidity at the time of melting is reduced, and the spinning property is deteriorated.
【００１３】また、ポリマー中にはカーボンブラック、
窒化ホウ素のような無機物、その他無機物の核剤、パラ
フィン等の可塑剤、ポリエチレンオキサイド、シリコン
等の改質剤を含んでいてもよい。Further, carbon black is contained in the polymer,
It may contain an inorganic substance such as boron nitride, a nucleating agent of other inorganic substances, a plasticizer such as paraffin, and a modifier such as polyethylene oxide and silicon.
【００１４】まず、本発明においては、フィラメントを
液体浴中に浸漬してフィラメントに対して充分な加熱を
行い延伸することが必要である。そして、液体浴の温度
は、ポリオキシメチレンの融点をTmとした場合、(Tm-10
0)〜（Tm-10)℃とする。（Tm-100）℃未満であると、フ
ィラメントを予熱する効果が少なくなり、均一な延伸が
困難となり、（Tm-10）℃を超えると取り扱いが困難と
なり、また、フィラメント表面を劣化させてしまう場合
があり、いずれの場合も得られるフィラメントは糸質物
性の低いものとなる。First, in the present invention, it is necessary to immerse the filament in a liquid bath, sufficiently heat the filament, and draw the filament. When the melting point of polyoxymethylene is Tm, the temperature of the liquid bath is (Tm-10
0) to (Tm-10) ° C. If the temperature is lower than (Tm-100) ° C., the effect of preheating the filament is reduced, and uniform drawing becomes difficult. If the temperature exceeds (Tm-10) ° C., handling becomes difficult, and the filament surface is deteriorated. In any case, the filaments obtained in any case have low thread properties.
【００１５】次に、液体浴中で加熱されたフィラメント
に加圧流体を円周方向から吹き付けて延伸を行う。この
際、フィラメントに対して局所的、すなわち、ポイント
的に吹き付けを行うことが好ましい。ただし、円筒状の
加熱流体噴射装置を用い、その中を走行させながら吹き
付けを行うことが好ましく、この場合、角度の異なる複
数のスリット部よりフィラメントの円周角度の異なる複
数の個所に同時に吹き付けを行ってもよい。Next, the filament heated in the liquid bath is stretched by spraying a pressurized fluid from the circumferential direction. At this time, it is preferable to spray the filament locally, that is, in a point manner. However, it is preferable to use a cylindrical heating fluid ejection device and perform the spraying while running through the device. In this case, the spraying is performed simultaneously from a plurality of slit portions having different angles to a plurality of locations having different circumferential angles of the filament. May go.
【００１６】このように円周方向から局所的に吹き付け
ることで延伸点の固定が可能となり、無理なフィラメン
トの塑性変形が抑制でき、均一延伸がなされるため、優
れた糸質物性を示すフィラメントを高速で得ることが可
能となる。[0016] By locally spraying from the circumferential direction in this way, the stretching point can be fixed, and unreasonable plastic deformation of the filament can be suppressed and uniform stretching is performed. It is possible to obtain at high speed.
【００１７】加圧流体の温度は、(Tm-50)〜（Tm+50)℃
とし、好ましくは(Tm-30)〜（Tm+20)℃である。（Tm-5
0）℃未満であると熱延伸に必要な熱量が不足し、（Tm+
50）℃を超えるとフィラメントを劣化させる等の悪影響
を与えてしまい、いずれの場合も産業資材用に好適な物
性を有するフィラメントを得ることができない。The temperature of the pressurized fluid is (Tm-50) to (Tm + 50) ° C.
And preferably (Tm-30) to (Tm + 20) ° C. (Tm-5
0) When the temperature is lower than 0 ° C, the amount of heat required for hot stretching is insufficient, and (Tm +
If the temperature exceeds 50 ° C., adverse effects such as deterioration of the filament are caused, and in any case, a filament having physical properties suitable for industrial materials cannot be obtained.
【００１８】また、加圧流体の温度は上記の範囲内で、
かつ液体浴温度以上とすることが好ましい。これによ
り、より十分な加熱効果が得られ、均一延伸が可能とな
る。The temperature of the pressurized fluid is within the above range,
Further, it is preferable that the temperature be equal to or higher than the liquid bath temperature. Thereby, a more sufficient heating effect can be obtained, and uniform stretching can be performed.
【００１９】さらに、加圧流体の流量は、0.5〜10kg/h
であることが好ましい。0.5kg/h未満であるとその効果
が少なく、10kg/hを超えると取り扱いが困難となり、操
業性も低下する。加圧流体の圧力は、0.5〜10.0kg/cm2
とすることが好ましい。0.5kg/ cm2未満であると、その
効果が少なく、10.0kg/cm2を超えると取り扱いが困難と
なる。Further, the flow rate of the pressurized fluid is 0.5 to 10 kg / h
It is preferred that If it is less than 0.5 kg / h, the effect is small, and if it exceeds 10 kg / h, handling becomes difficult and operability is reduced. The pressure of the pressurized fluid is 0.5 to 10.0 kg / cm 2
It is preferable that If it is less than 0.5 kg / cm 2 , the effect is small, and if it exceeds 10.0 kg / cm 2 , handling becomes difficult.
【００２０】液体浴中の液体としてとしては水、エチレ
ングリコール、グリセリン、シリコンオイル、ポリエチ
レングリコール、ポリエチレン等が使用可能である。中
でも、使用後の処理等を考慮に入れると、加圧流体が液
体の場合、加圧流体と同種の液体を用いることが望まし
い。As the liquid in the liquid bath, water, ethylene glycol, glycerin, silicone oil, polyethylene glycol, polyethylene and the like can be used. In particular, in consideration of post-use processing and the like, when the pressurized fluid is a liquid, it is desirable to use the same type of liquid as the pressurized fluid.
【００２１】加圧流体としては、ポリオキシメチレンに
対して不活性であり、延伸工程において流動性を示すも
のであれば、特に制限はなく、気体でも液体でもよい。
液体としては上記と同様の水、エチレングリコール、グ
リセリン、シリコンオイル、ポリエチレングリコール、
ポリエチレン等が使用可能であり、気体では、窒素、ア
ルゴン、ネオン、ヘリウムのような不活性気体、水蒸
気、空気等が挙げられる。The pressurized fluid is not particularly limited as long as it is inert to polyoxymethylene and exhibits fluidity in the stretching step, and may be a gas or a liquid.
As the liquid, water, ethylene glycol, glycerin, silicone oil, polyethylene glycol,
Polyethylene or the like can be used, and examples of the gas include an inert gas such as nitrogen, argon, neon, and helium, water vapor, and air.
【００２２】次に、図面（図１）を用いて本発明の製造
方法の一例を説明する。溶融紡糸後、冷却されたフィラ
メント１をフィードローラ群２で引き取り、続いて液体
浴３中に導き、液体浴中で予熱を行う。そして、液体浴
中においてフィラメント１の円周方向より加熱流体を吹
き付ける流体噴射装置４で加熱しながら、加熱流体吹き
付け位置を延伸点として延伸を行う。延伸倍率は、フィ
ードローラ群２とドローローラ群５との速度比で調整す
る。Next, an example of the manufacturing method of the present invention will be described with reference to the drawings (FIG. 1). After the melt spinning, the cooled filament 1 is taken up by the feed roller group 2, subsequently guided into the liquid bath 3, and preheated in the liquid bath. Then, in the liquid bath, the heating fluid is sprayed from the circumferential direction of the filament 1 by the fluid ejecting device 4, and stretching is performed with the heating fluid spraying position as the stretching point. The stretching ratio is adjusted by the speed ratio between the feed roller group 2 and the draw roller group 5.
【００２３】なお、本発明においては、延伸は複数回行
う多段延伸でもよく、したがって、全ての延伸工程に液
体浴と流体噴射装置を複数個設けて、熱延伸を施して
も、また、一部の工程のみに液体浴と流体噴射装置を設
けて熱延伸してもよい。In the present invention, the stretching may be multi-stage stretching in which the stretching is performed a plurality of times. Therefore, a plurality of liquid baths and a plurality of fluid ejecting devices are provided in all stretching steps to perform thermal stretching. A liquid bath and a fluid ejecting apparatus may be provided only in the step (1) to perform the thermal stretching.
【００２４】本発明の製造方法は、太繊度のフィラメン
トを製造する際に特に好適であり、10〜5000dtex程度の
ものを製造する場合に特に有効である。そして、本発明
によれば、産業資材用に好適な糸質物性のポリオキシメ
チレンフィラメントを得ることができるが、具体的に
は、強度6〜11cN/dtex、伸度5〜20％程度のものが得ら
れる。The production method of the present invention is particularly suitable for producing filaments having a large fineness, and particularly effective for producing filaments of about 10 to 5000 dtex. And, according to the present invention, it is possible to obtain a polyoxymethylene filament having a filamentous property suitable for industrial materials, and specifically, a fiber having a strength of 6 to 11 cN / dtex and an elongation of about 5 to 20%. Is obtained.
【００２５】[0025]
【作用】本発明において、液体浴での処理はフィラメン
トの予熱、加圧流体での処理は、延伸点の固定及び均一
な延伸によるフィラメントの変形を助長させる役割を果
たすものである。上記のような製造法を行うことで延伸
点の固定と同時に均一延伸が可能となる。そのため、高
延伸倍率条件でのフィラメントの採取が可能となり、そ
の結果、優れた糸質性能のポリオキシメチレンフィラメ
ントが得られ、生産性も向上する。In the present invention, the treatment in the liquid bath plays a role of preheating the filament, and the treatment with the pressurized fluid plays the role of fixing the drawing point and promoting the deformation of the filament by uniform drawing. By performing the manufacturing method as described above, uniform stretching can be performed simultaneously with fixing the stretching point. For this reason, it is possible to collect filaments under high draw ratio conditions. As a result, polyoxymethylene filaments having excellent yarn quality can be obtained, and productivity can be improved.
【００２６】[0026]
【実施例】次に、本発明を実施例によって具体的に説明
する。実施例中の溶融粘度、糸質の測定は以下のように
行った。 〔溶融粘度〕島津製作所社製フローテスターCFT-500D装
置（ダイ径=1mm、ダイ長=10mm）を使用し、220℃、予熱
時間300秒の条件で測定した時のせん断速度=100s-1の値
とした。 〔糸質〕JIS 1013に準じて測定した。Next, the present invention will be described specifically with reference to examples. The measurement of the melt viscosity and yarn quality in the examples was performed as follows. [Melt viscosity] Using a Shimadzu Corporation flow tester CFT-500D device (die diameter = 1 mm, die length = 10 mm), at a shear rate of 100 s -1 when measured at 220 ° C. and a preheating time of 300 seconds. Value. [Thread quality] Measured according to JIS 1013.
【００２７】実施例１ 溶融粘度10000poise、エチレンオキサイド成分を1.6mol
%共重合したポリオキシメチレンコポリマー（Ｔｍ165
℃）を用い、エクストルーダー型紡糸装置を使用し、21
0℃の温度で溶融した。この溶融ポリマーを口径2.0mmの
紡糸口金を使用し、計量押し出しし、紡糸を行った。引
き続き紡糸したフィラメントを80℃の水浴中で冷却し、
未延伸糸を得た。この未延伸糸を図１のような構成の延
伸装置を２個使用し、２段階で延伸処理（全延伸倍率8.
25倍）を行い、延伸フィラメントを165m/分の速度で巻
き取った.このとき、液体浴の長さは150cmであり、加圧
流体噴射装置は、長さ10cm、内径0.6cmで、フィラメン
トの走行方向に対して60度の傾きで0.5mm幅のスリット
（1個）を有し、フィラメントの円周方向から加圧流体
の噴出が可能となっているものを用いた。また、液体浴
の液体にはシリコン、加圧流体にもシリコンを用い、第
１段延伸を浴中の温度を130℃(Tm-35℃)とし、加圧流体
の温度150℃(Tm-15℃)、流量2.0kg/h、圧力1.5kgf/cm2
とし、延伸倍率7.5倍で行った。引き続いて、第2段目の
延伸を浴中に温度を150℃(Tm-15℃)とし、加圧流体の温
度160℃(Tm-5℃)、流量2.0kg/h、圧力2.0kgf/cm2とし延
伸倍率1.1倍で行った。得られたフィラメントの糸質性
能を表１に示す。Example 1 Melt viscosity 10000 poise, ethylene oxide component 1.6 mol
% Copolymerized polyoxymethylene copolymer (Tm165
° C), using an extruder type spinning device,
Melted at a temperature of 0 ° C. The molten polymer was measured and extruded using a spinneret having a diameter of 2.0 mm, and was spun. Subsequently, the spun filament is cooled in a water bath at 80 ° C,
An undrawn yarn was obtained. This unstretched yarn is stretched in two stages using two stretching machines having the configuration shown in FIG. 1 (total stretching ratio of 8.
25 times) and the drawn filament was wound at a speed of 165 m / min. At this time, the length of the liquid bath was 150 cm, and the pressurized fluid ejection device was 10 cm in length, 0.6 cm in inner diameter, and A slit having a slit of 0.5 mm width (1 piece) at an inclination of 60 degrees with respect to the running direction and capable of ejecting a pressurized fluid from the circumferential direction of the filament was used. In addition, silicon is used as the liquid in the liquid bath, and silicon is also used as the pressurized fluid. The temperature in the bath is 130 ° C (Tm-35 ° C) in the first-stage stretching, and the temperature of the pressurized fluid is 150 ° C (Tm-15). ° C), flow rate 2.0 kg / h, pressure 1.5 kgf / cm 2
The stretching was performed at 7.5 times. Subsequently, in the second stage of stretching, the temperature was set to 150 ° C (Tm-15 ° C) in the bath, the temperature of the pressurized fluid was 160 ° C (Tm-5 ° C), the flow rate was 2.0 kg / h, and the pressure was 2.0 kgf / cm. The stretching ratio was set to 2, and the stretching was performed at 1.1 times. Table 1 shows the yarn quality performance of the obtained filaments.
【００２８】実施例２ 第一延伸を、液体浴（シリコン）の温度を95℃(Tm-70
℃)、加圧流体を水蒸気とし、温度120℃(Tm-45℃)、流
量2.0kg/h、圧力1.5kgf/cm2に変更し、第二目の延伸
を、液体浴の温度を95℃(Tm-70℃)、加圧流体を水蒸気
とし、温度140℃(Tm-25℃)、流量2.0kg/h、圧力3.0kgf/
cm2とした以外は実施例１と同様に行った。得られたフ
ィラメントの糸質性能を表１に示す。Example 2 In the first stretching, the temperature of the liquid bath (silicon) was set to 95 ° C. (Tm-70).
C), pressurized fluid as steam, temperature 120 ° C (Tm-45 ° C), flow rate 2.0kg / h, pressure 1.5kgf / cm2, second stretching, liquid bath temperature 95 ° C (Tm-70 ° C), pressurized fluid as steam, temperature 140 ° C (Tm-25 ° C), flow rate 2.0kg / h, pressure 3.0kgf /
The procedure was performed in the same manner as in Example 1 except that cm 2 was used. Table 1 shows the yarn quality performance of the obtained filaments.
【００２９】実施例３ 液体浴と加圧流体噴射装置からなる延伸装置を１つだけ
用い、液体浴の液体をグリセリンとし、液体浴の温度を
130℃(Tm-35℃)とし、加圧流体もグリセリンを用い、温
度150℃(Tm-15℃)、2.0kg/h、2.0kgf/cm2として延伸倍
率8.0倍で１段延伸を施した以外は実施例１と同様に行
った。得られたフィラメントの糸質性能を表１に示す。Example 3 Using only one stretching device consisting of a liquid bath and a pressurized fluid ejecting device, the liquid in the liquid bath was glycerin, and the temperature of the liquid bath was
And 130 ℃ (Tm-35 ℃) , also used glycerin pressurized fluid, temperature 150 ℃ (Tm-15 ℃) , 2.0kg / h, were subjected to single-stage stretching at a draw ratio 8.0 times as 2.0 kgf / cm 2 Other than that, it carried out similarly to Example 1. Table 1 shows the yarn quality performance of the obtained filaments.
【００３０】比較例１ 液体浴と加圧流体噴射装置からなる延伸装置を１つだけ
用い、かつ流体噴射装置より流体を吹き付けることな
く、130℃のシリコン浴中で6.5倍に延伸し、その後、25
0℃の熱風雰囲気下で1.1倍に延伸し、全延伸倍率を7.0
倍とした以外は実施例１と同様に行った。得られたフィ
ラメントの糸質性能を表１に示す。Comparative Example 1 Using only one stretching device consisting of a liquid bath and a pressurized fluid ejecting device, and stretching 6.5 times in a silicon bath at 130 ° C. without spraying a fluid from the fluid ejecting device. twenty five
Stretched 1.1 times in a hot air atmosphere at 0 ° C, and the total stretching ratio was 7.0.
The procedure was performed in the same manner as in Example 1 except that the number was doubled. Table 1 shows the yarn quality performance of the obtained filaments.
【００３１】比較例２〜３ 液体浴の温度、加熱流体の温度を表１に示すように変更
した以外は、実施例１と同様にして行った。得られたフ
ィラメントの糸質性能を表１に示す。Comparative Examples 2 and 3 The same procedure as in Example 1 was carried out except that the temperature of the liquid bath and the temperature of the heating fluid were changed as shown in Table 1. Table 1 shows the yarn quality performance of the obtained filaments.
【００３２】[0032]
【表１】 [Table 1]
【００３３】[0033]
【発明の効果】本発明によれば、延伸点を固定し、均一
な熱延伸処理が可能となるため、産業資材用に好適な優
れた糸質性能を示すフィラメントの製造が可能となり、
また、その速度も工業的に有効な製造速度となり、操業
性が向上する。According to the present invention, since the stretching point is fixed and uniform heat drawing can be performed, it is possible to produce a filament exhibiting excellent yarn quality suitable for industrial materials.
The speed is also an industrially effective production speed, and the operability is improved.
【図１】本発明の製造方法の一実施態様を示す概略工程
図である。FIG. 1 is a schematic process chart showing one embodiment of the production method of the present invention.
１ フィラメント ２ フィードローラ群 ３ 液体浴 ４ 流体噴射装置 ５ ドローローラ群 DESCRIPTION OF SYMBOLS 1 Filament 2 Feed roller group 3 Liquid bath 4 Fluid ejection device 5 Draw roller group
Claims (1)
液体浴中で（Ｔｍ−５０）〜（Ｔｍ＋５０）℃の加圧流
体をフィラメントに対して円周方向から吹き付け、熱延
伸を行うことを特徴とするポリオキシメチレンフィラメ
ントの製造方法。In a liquid bath of (Tm-100) to (Tm-10) ° C, a pressurized fluid of (Tm-50) to (Tm + 50) ° C is sprayed onto the filament from the circumferential direction to perform hot stretching. A method for producing a polyoxymethylene filament.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36715499A JP2001181928A (en) | 1999-12-24 | 1999-12-24 | Method for producing polyoxymethylene filament |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36715499A JP2001181928A (en) | 1999-12-24 | 1999-12-24 | Method for producing polyoxymethylene filament |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001181928A true JP2001181928A (en) | 2001-07-03 |
Family
ID=18488606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP36715499A Pending JP2001181928A (en) | 1999-12-24 | 1999-12-24 | Method for producing polyoxymethylene filament |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001181928A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018159142A (en) * | 2017-03-22 | 2018-10-11 | 国立大学法人信州大学 | Method for producing biodegradable fiber |
| CN114474772A (en) * | 2022-01-28 | 2022-05-13 | 山东鲁化森萱新材料有限公司 | Preparation method of high-strength high-toughness polyformaldehyde product |
-
1999
- 1999-12-24 JP JP36715499A patent/JP2001181928A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018159142A (en) * | 2017-03-22 | 2018-10-11 | 国立大学法人信州大学 | Method for producing biodegradable fiber |
| CN114474772A (en) * | 2022-01-28 | 2022-05-13 | 山东鲁化森萱新材料有限公司 | Preparation method of high-strength high-toughness polyformaldehyde product |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5534205A (en) | Method for preparing polybenzoxazole or polybenzothiazole fibers | |
| CN100482869C (en) | Process for producing high-performance polyethylene multifilament yarns | |
| US5286435A (en) | Process for forming high strength, high modulus polymer fibers | |
| KR100481335B1 (en) | Melt Spun Fluoropolymeric Fibers and Process for Producing Them | |
| JP2020531710A (en) | High-strength polyethylene terephthalate yarn and its manufacturing method | |
| JP2005179823A (en) | Method for producing polyester fiber and spinning cap for melt spinning | |
| JP2000178829A (en) | Polyphenylene sulfide fiber and its production | |
| SK8622002A3 (en) | Apparatus for manufacturing optical fiber made of semi-crystalline polymer | |
| JP2001181928A (en) | Method for producing polyoxymethylene filament | |
| JPS61108711A (en) | Production of polyvinyl alcohol fiber of high strength and high elastic modulus | |
| JP2001172821A (en) | Production of polyoxymethylene fiber | |
| JPH07238416A (en) | Production of high-strength polyethylene fiber | |
| KR20190005361A (en) | Mata-aramid polyethylene fiber and method for manufacturing the same | |
| JPS61215708A (en) | Production of multifilament yarn | |
| JP2004052173A (en) | High-strength polyester monofilament and method for producing the same | |
| JPH02210013A (en) | Dry and wet spinning process | |
| JP2000144527A (en) | Spinning of polyester yarn | |
| JP3333750B2 (en) | Method for producing polyester fiber | |
| JPS62184112A (en) | Production of high-tenacity high-modulus polyethylene fiber | |
| JP2842243B2 (en) | Melt spinning equipment | |
| JPS6052647A (en) | Gel fiber and gel film stretching method | |
| JPH07216649A (en) | Polyimide fiber having high strength and high shrinkage and its production | |
| JPH06166909A (en) | Method for producing melt-anisotropic aromatic polyester ultrafine fibers | |
| JP2001146637A (en) | Polyimide fiber for binder and method for producing the same | |
| JP7260478B2 (en) | Compositions and methods for gel spinning polyamides |