JPS60167906A - Method of melt spinning of synthetic yarn and device - Google Patents

Method of melt spinning of synthetic yarn and device

Info

Publication number
JPS60167906A
JPS60167906A JP1986284A JP1986284A JPS60167906A JP S60167906 A JPS60167906 A JP S60167906A JP 1986284 A JP1986284 A JP 1986284A JP 1986284 A JP1986284 A JP 1986284A JP S60167906 A JPS60167906 A JP S60167906A
Authority
JP
Japan
Prior art keywords
spinning
yarn
spinneret
reduced pressure
melt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP1986284A
Other languages
Japanese (ja)
Other versions
JPH0653968B2 (en
Inventor
Katsumi Hasegawa
勝美 長谷川
Michio Ono
大野 通夫
Naoto Nagayasu
永安 直人
Kazuo Umeda
和生 梅田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP59019862A priority Critical patent/JPH0653968B2/en
Publication of JPS60167906A publication Critical patent/JPS60167906A/en
Publication of JPH0653968B2 publication Critical patent/JPH0653968B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Artificial Filaments (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

PURPOSE:To improve cooling effect while keeping a reduced pressure state, by setting a cooling air sending part at just below a spinneret in a spinning column in a reduced pressure atmosphere, withdrawing cooled yarn from an outlet part of the fluidly sealed spinning column by a withdrawing means laid at the outside of the spinning column. CONSTITUTION:The movable column 17 is brought into contact with the ring- shaped chimney 12 by pressure, and the space Sa extending from a position just below the spinneret 7 to the seal guide 24 at the bottom of the fixed cylinder 18 is prepared. Degree of reduced pressure of the space Sa is detected by the vacuum meter 27, and the vacuum pump 26 is regulated by the controller 22 to make the degree of reduced pressure constant. The yarn Y is cooled and solidified by cooling air sent from the chimney.

Description

【発明の詳細な説明】 本発明は、!li維形成形成性重合体圧気体中にIII
出し、その後外部常圧雰囲気正中に引取ることによって
、均一性に優れた糸条を安定して得る合成繊維の溶融紡
糸方法および装置に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention provides the following features: Li fiber-forming polymer III in pressurized gas
The present invention relates to a method and an apparatus for melt-spinning synthetic fibers, which stably produce yarns with excellent uniformity by taking the fibers out and then taking them into the middle of an external atmospheric pressure atmosphere.

熱可塑性重合体を溶融し、紡糸口金から紡出した紡出糸
条を冷却、固化せしめた後、オイリングして一定の速度
で巻取るという従来の溶融紡糸巻取方法において、引取
られた紡出糸条は糸条間、糸条の長手方向、あるいは糸
条を構成している単wX維間に斑があり、均一性の面で
問題を有している。
In the conventional melt spinning winding method, in which a thermoplastic polymer is melted and the spun yarn spun from a spinneret is cooled and solidified, it is oiled and wound at a constant speed. The yarns have unevenness between the yarns, in the longitudinal direction of the yarns, or between the single wX fibers that make up the yarns, which poses a problem in terms of uniformity.

上記の問題は、紡糸溶融温度、紡糸ドラフト、冷却条件
や引取り速度などの適正化によっである程度均一性は向
上するが、採用し得る条イ′[の範囲は狭く、充分な効
果は期待できない。
Regarding the above problem, uniformity can be improved to some extent by optimizing the spinning melt temperature, spinning draft, cooling conditions, take-up speed, etc., but the range of usable strips is narrow and a sufficient effect cannot be expected. Can not.

さらに近年、超高速で溶融紡出糸条を引取って高配向な
糸条を得る技術が開発されているが、このような超高速
紡糸においては、低速ではあまり問題とされなかった空
気抵抗が過大となり1、場合によっては紡出糸条の延伸
応力、さらには破断応力を上回るようになり、問題であ
った。
Furthermore, in recent years, technology has been developed to obtain highly oriented yarn by taking off melt-spun yarn at ultra-high speeds. This became excessive, and in some cases exceeded the drawing stress and even breaking stress of the spun yarn, which was a problem.

また、このような超高速紡糸では、同一品種の製糸に対
し、吐出ポリマ量は増大し、高速で引取ることと合せて
溶融ポリマ流の冷却が遅延するという問題が生じた。
In addition, in such ultra-high speed spinning, the amount of polymer discharged increases compared to spinning of the same type of yarn, and there is a problem that the cooling of the molten polymer stream is delayed in addition to the high-speed take-up.

一方、溶融された熱可塑性重合体を口金から減圧雰囲気
中に紡出し、雰囲気気流の紡出糸条への影響を減少させ
、糸条の均一性を向上せしめんとするものとして特公昭
57−8206号公報に記載された技術が知られている
On the other hand, the molten thermoplastic polymer was spun from a die into a reduced pressure atmosphere to reduce the influence of atmospheric airflow on the spun yarn, and to improve the uniformity of the yarn. A technique described in Japanese Patent No. 8206 is known.

該公報に記載された技術は、冷却風吹き込み装置を有し
ない紡糸筒の気体を、大気中より4Qcta水柱以上減
圧された状態に積極的に吸引排出し、該紡糸筒内にてガ
ラス転移点温度+50℃まで糸条を冷却するというもの
である。しかしながら、この方法では紡糸口金から紡出
された糸条を減圧状態に維持された紡糸局内に導くに際
し、冷却風を送り込まないため、紡出糸条の冷N1の大
半は紡糸筒内の密閉された気体と糸条との熱伝達ににる
熱秦換で決定される。しかるに、該気体と糸条間の熱交
換は気体の減圧度に比例して気体密度が減少するため、
小さくなり、その結果、糸条の冷1dlが殆ど進まなく
なる。
The technology described in this publication actively suctions and discharges the gas in a spinning tube that does not have a cooling air blowing device to a state where the pressure is reduced by 4Qcta water column or more from the atmosphere, and the glass transition point temperature is reached within the spinning tube. The yarn is cooled to +50°C. However, in this method, when the yarn spun from the spinneret is guided into the spinning station maintained in a reduced pressure state, cooling air is not sent in, so most of the cold N1 in the spun yarn is in the sealed space inside the spinning tube. It is determined by the heat exchange caused by heat transfer between the gas and the yarn. However, in the heat exchange between the gas and the yarn, the gas density decreases in proportion to the degree of pressure reduction of the gas, so
As a result, 1 dl of cooling of the yarn hardly advances.

また、上記の気体と紡出糸条との熱交換により、紡糸筒
内に熱が蓄積される結果、紡糸筒内の気体温度が経時的
に上昇し、糸条への冷却効果がさらに小さくなる。この
ため、前記の技術では、減圧状態に維持された紡糸筒内
で糸条を同化点近くまで冷却することは非常に困難にな
り、紡糸条件によっては紡出糸条が溶断し、紡糸が不可
能となる。
Additionally, as a result of the heat exchange between the above gas and the spun yarn, heat is accumulated within the spinning tube, and as a result, the gas temperature within the spinning tube increases over time, further reducing the cooling effect on the yarn. . For this reason, in the above technology, it is extremely difficult to cool the yarn to near the assimilation point in the spinning tube maintained under reduced pressure, and depending on the spinning conditions, the spun yarn may melt and break, resulting in the spinning becoming impossible. It becomes possible.

これらの欠点を解消するためには、前記の公報に記載さ
れるように、紡糸筒を直接冷媒により冷却する手段など
が必要となるが、熱交換率の悪い希薄気体によっている
ため、装置の?!雑化、大型化にも係わらず、冷却効率
は悪いなどの問題がある。さらに、吐出ポリマ流より発
生するモノマ、オリゴマ、触媒等の昇華物が開鎖空間内
に充満すると共に、これが冷U」された紡糸筒内壁に析
出し、紡糸障害の原因どなるばかりでなく、さらに、熱
交換率を低下させるという問題がある。
In order to eliminate these drawbacks, as described in the above-mentioned publication, a means for directly cooling the spinning tube with a refrigerant is required, but since it uses a diluted gas with a poor heat exchange rate, it is difficult to use the equipment. ! Despite becoming more complex and larger, there are problems such as poor cooling efficiency. Furthermore, sublimated substances such as monomers, oligomers, and catalysts generated from the discharged polymer flow fill the open chain space and are deposited on the inner wall of the spinning cylinder, which is cooled, not only causing spinning problems but also There is a problem of lowering the heat exchange rate.

−h1上記の技術と類似する技術が特開昭51−674
08号公報によって知られている。該公報に記載されて
いる方法は、空気吸引装置により、すなわち、所謂アス
ピレータ方式により口金下を減圧雰囲気とするものであ
る。
-h1 A technology similar to the above technology is published in Japanese Patent Application Laid-Open No. 51-674.
It is known from Publication No. 08. The method described in this publication uses an air suction device, that is, a so-called aspirator method, to create a reduced pressure atmosphere under the mouthpiece.

該技術においても減圧下での冷却不足の問題があり、ま
たアスピレータを通過する高速の空気の随伴ツノにより
口金から紡出された糸条を高速で送り出すため、糸の操
作、すなわち糸の速度、延伸力、延伸倍率などのコント
ロールが難しいという欠点がある。
This technology also has the problem of insufficient cooling under reduced pressure, and since the spun yarn is sent out from the spinneret at high speed by the accompanying horn of high-speed air passing through the aspirator, it is difficult to manipulate the yarn, that is, the speed of the yarn. The drawback is that it is difficult to control the stretching force, stretching ratio, etc.

本発明の目的は、上記の如き従来技術の欠点を解決せん
とするものであり、高い減圧状態を維持しながらも、紡
出糸条の冷却効果を向上せしめ、かつ該紡出糸条から発
生するモノマ、オリゴマ、触媒等の昇華物の析出を防止
し、しかも流体的に充分にシール性を確保した状態で糸
の速度、延伸力、延伸倍率などのコントロールが容易に
行なうことがもきる減圧雰囲気下での紡糸を可能にし、
かつ均一性に優れた糸条を得る合成llAl11の溶融
紡糸方法および装置を提供せIνとするものである。
The purpose of the present invention is to solve the above-mentioned drawbacks of the prior art, and to improve the cooling effect of the spun yarn while maintaining a high vacuum state, and to reduce the amount of heat generated from the spun yarn. Reduced pressure prevents the precipitation of sublimated substances such as monomers, oligomers, and catalysts, and also allows easy control of yarn speed, drawing force, drawing ratio, etc. while ensuring sufficient fluid sealing properties. Enables spinning under atmosphere,
Another object of the present invention is to provide a method and apparatus for melt-spinning synthetic 11Al11, which yields yarns with excellent uniformity.

上記の目的を達成する本発明の構成は、次の通りである
。すなわち、 (1)溶融紡糸可能な熱可塑性重合体を紡糸口金直下に
配置されかつ外気雰囲気部よりも減圧に保持された減圧
雰囲気紡糸筒内に吐出し、該紡糸局内に設けられた冷却
風吹き込み部から冷却風を流入せしめつつ、紡出糸条を
冷却固化した後、実質的に充分に流体的にシールされた
該紡糸筒の出1]部より該紡糸筒外に設けた引取手段に
よって冷却糸条を外気常圧部へ導き出ずことを特徴とす
る合成繊維の溶融紡糸方法、および (2)熱可塑性重合体の紡糸口金直下に、該口金の周囲
を取囲み、吐出された糸条の糸道に沿って延びる減圧雰
囲気紡糸筒を配置し、該紡糸向には冷却風吹き込み部が
設けられていると共に、下端部は実質的に充分に流体的
にシールされた糸条出口部を有しており、かつ該紡糸向
の外に紡出糸条の引取手段を有することを特徴とする合
成繊維の溶融紡糸装置である。
The structure of the present invention that achieves the above object is as follows. That is, (1) a thermoplastic polymer that can be melt-spun is discharged into a reduced-pressure atmosphere spinning tube located directly below the spinneret and maintained at a lower pressure than the outside atmosphere, and a cooling air blower provided in the spinning station is used. After cooling and solidifying the spun yarn while allowing cooling air to flow in from the spinning tube, the spun yarn is cooled from the exit section of the spinning tube, which is substantially sufficiently fluidly sealed, by a take-up means provided outside the spinning tube. A synthetic fiber melt-spinning method characterized in that the yarn is not led to an outside atmospheric pressure part, and (2) a yarn that is discharged and placed directly under a thermoplastic polymer spinneret surrounding the spinneret. A reduced-pressure atmosphere spinning tube is arranged extending along the yarn path, and a cooling air blowing section is provided in the spinning direction, and the lower end has a yarn exit section that is substantially sufficiently fluidly sealed. A synthetic fiber melt spinning apparatus is characterized in that it has a spun yarn take-up means outside the spinning direction.

以下、本発明を図面を参照しながら更に詳しく説明する
Hereinafter, the present invention will be explained in more detail with reference to the drawings.

第1図は、本発明に係る減圧雰囲気紡糸装置の代表的な
実施態様を示す概略図である。
FIG. 1 is a schematic diagram showing a typical embodiment of a reduced pressure atmosphere spinning apparatus according to the present invention.

図において、1は紡糸機であり、該紡糸機は、チップT
を投入した原料ホッパー2、溶融押出し1幾3、メタリ
ングポンプ4、変速機付きのモータ5、パック6および
口金7からなる。
In the figure, 1 is a spinning machine, and the spinning machine has a tip T
It consists of a raw material hopper 2 into which the ferrite is charged, a melt extruder 1 and 3, a metering pump 4, a motor 5 with a transmission, a pack 6, and a nozzle 7.

原料ホッパー2からのチップTは、紡糸+111内の溶
融押出し機3により溶融状態でメタリングポンプ4を通
過させられた後、パック6内のフィルター(図示せず)
で濾過され、口金7から糸条Yとして溶融紡糸される。
Chips T from the raw material hopper 2 are passed through a metering pump 4 in a molten state by a melt extruder 3 in a spinning +111, and then passed through a filter (not shown) in a pack 6.
The fibers are filtered and melt-spun as yarn Y from the spinneret 7.

メタリングポンプ4は、変速機イ」きのモータ5に連結
されており、該モータ5の出力回転数を制御することに
より、糸条Yの吐出量を決定することができる。
The metering pump 4 is connected to a motor 5 with a transmission, and by controlling the output rotation speed of the motor 5, the amount of yarn Y to be discharged can be determined.

本発明においては、口金7を装着したパック6の直下に
減圧雰囲気紡糸筒Sを設けてあり、該紡糸筒内から気体
を吸引排出するようにしたものである。
In the present invention, a reduced-pressure atmosphere spinning tube S is provided directly below the pack 6 to which the spinneret 7 is attached, and gas is sucked and discharged from the inside of the spinning tube.

上記減圧雰囲気紡糸筒Sについて、以下に更に詳しく述
べる。
The reduced pressure atmosphere spinning tube S will be described in more detail below.

口金直下には、必要に応じて加熱筒8が紡糸機1に取付
けられ、該加熱筒8の下方には、断熱筒11を介して冷
却風吹き込み装置の環状ヂムニー12が取付けられてい
る。上記加熱筒8は溶融粘性の高いポリマを溶融紡糸す
る際に用いることができるが、低粘性ポリマを溶融紡糸
する場合は採用しなく’Uもよい。また、加熱筒8には
、熱電対9が設けられており、該熱電対9は、加熱筒内
の雰囲気温度を設定値に制御できるように、渇If ]
コントローラ0とつながっている。該温度コントローラ
10により、加熱筒内に内蔵されヒータ(図示せず)を
制御し、加熱筒内の雰囲気温度を設定値にすることが可
能な構造どなっている。
Directly below the spinneret, a heating cylinder 8 is attached to the spinning machine 1 as required, and below the heating cylinder 8, an annular chimney 12 of a cooling air blowing device is attached via a heat insulating cylinder 11. The heating cylinder 8 can be used when melt-spinning a polymer with high melt viscosity, but may not be employed when melt-spinning a low-viscosity polymer. Further, the heating cylinder 8 is provided with a thermocouple 9, and the thermocouple 9 is used to control the atmospheric temperature within the heating cylinder to a set value.
Connected to controller 0. The temperature controller 10 controls a heater (not shown) built in the heating cylinder, and has a structure that allows the atmospheric temperature inside the heating cylinder to be set at a set value.

上記の環状チムニ−12には、円筒型のポーラス状フィ
ルター13が設置されており、該環状1ムニー12に開
口する冷却風吹き込み用配管14から送り込まれる冷却
用を、フィルター13の長手方向、および円周方向にほ
ぼ均一に吹き出させる構造となっている。冷却風吹き込
み用配管14には流量を調節するバルブ15が取付けら
れている。
A cylindrical porous filter 13 is installed in the annular chimney 12, and the cooling air sent from the cooling air blowing pipe 14 that opens into the annular chimney 12 is directed in the longitudinal direction of the filter 13 and It has a structure that blows out almost uniformly in the circumferential direction. A valve 15 for adjusting the flow rate is attached to the cooling air blowing pipe 14.

環状チムニ−12の下方には、可動筒体17が固定筒体
18内に収められ、該可動筒体17は該可動筒体に取付
けられたシリンダ19とシリンダー昇降用案内棒20を
介して連動し、該シリンダー19の作動により固定筒体
18内を上下に昇降し得るようになっている。糸通しな
どの作業時には、該可動筒体17は、環状チムニ−12
の下端部と可動筒体17の上端部との間に、作業空間を
確保し、通常の巻取り時には、上方の環状チムニ−12
の位置まで上昇、接圧し得る如くなっている。
A movable cylinder 17 is housed in a fixed cylinder 18 below the annular chimney 12, and the movable cylinder 17 is interlocked with a cylinder 19 attached to the movable cylinder via a guide rod 20 for raising and lowering the cylinder. However, by operating the cylinder 19, the fixed cylinder 18 can be moved up and down. During work such as threading, the movable cylinder 17 moves around the annular chimney 12.
A working space is secured between the lower end and the upper end of the movable cylinder 17, and during normal winding, the upper annular chimney 12
It is now possible to rise to the position of , and make contact with it.

なお、可動筒体17と固定筒体18との摺動部、可動筒
体17と環状チムニ−12との接圧部には、0リングな
どのシール部材16.16′を設しブで洩れのない構造
にされている。
In addition, a sealing member 16, 16' such as an O-ring is provided at the sliding part between the movable cylinder 17 and the fixed cylinder 18 and at the contact area between the movable cylinder 17 and the annular chimney 12 to prevent leakage. It is structured without

更に、該固定筒体18の下端の糸出口部には、第2図に
示す如く、糸条が通過し得るだけの微小なスリット28
を有し、該スリット部の抵抗による圧力損失で実質的に
流体的に充分シール性が確保されるシールガイド24を
装着したガイドホルダー25が取付けられている(第2
図(イ)は平面図、(ロ)は側面図を示す)。該シール
ガイド24の近辺には、真空ポンプ26に連結されてい
る配管23が段【プられている。
Furthermore, as shown in FIG. 2, a minute slit 28 is provided at the lower end of the fixed cylinder 18 to allow the yarn to pass through.
A guide holder 25 is attached with a seal guide 24 that has a seal guide 24 that substantially ensures sufficient fluid sealing performance due to the pressure loss due to the resistance of the slit portion (second guide holder 25).
Figure (a) shows a plan view, and (b) shows a side view). In the vicinity of the seal guide 24, a pipe 23 connected to a vacuum pump 26 is stepped.

したがって、可動筒体17を環状チムニ−12に接圧さ
Vるだりで、[1金7直下から固定筒体18の下端のシ
ールガイド24までの密閉された空間、すなわち口金下
部減圧雰囲気室3aを容易に得ることができる。
Therefore, when the movable cylinder 17 is brought into contact with the annular chimney 12, the sealed space from directly below the metal 7 to the seal guide 24 at the lower end of the fixed cylinder 18, that is, the reduced pressure atmosphere chamber 3a at the bottom of the base. can be easily obtained.

なお、該減圧雰囲気室3aには真空泪27が装着されて
J3す、減圧雰囲気室3aの減圧度を該真空計で検知し
、該検知信号をコントローラ22に送り、該コントロー
ラ22により一定の減圧度になるように真空ポンプ26
を制御Jる。減11−状態に保持された口金下部減圧雰
囲気室Sa内に口金7から溶融紡糸された糸条Yが吐出
されると、糸条Yは温度コントローラ10により、設定
温度に保持された加熱筒8内の徐冷域を走行せしめられ
たのち、環状チムニ−12内のポーラス状フィルター1
3により整流され、吹き込まれる冷却空気の流れに沿っ
て減圧雰囲気室Sa内を走行し、その間に冷却が促進さ
れ、固化される。
A vacuum gauge 27 is attached to the reduced pressure atmosphere chamber 3a, and the degree of reduced pressure in the reduced pressure atmosphere chamber 3a is detected by the vacuum gauge, and the detection signal is sent to the controller 22, which controls the pressure to be reduced to a certain level. vacuum pump 26
control. When the melt-spun yarn Y is discharged from the spinneret 7 into the reduced-pressure atmosphere chamber Sa below the spinneret held in the reduced-pressure 11-state, the yarn Y is transferred to the heating tube 8 which is maintained at a set temperature by the temperature controller 10. The porous filter 1 inside the annular chimney 12 is
3, the cooling air travels inside the reduced pressure atmosphere chamber Sa along the flow of the blown cooling air, during which cooling is promoted and solidified.

冷却固化された糸条Yは、シールガイド24を通過して
外気常圧部に設けられたガイド給油装置21で油剤を付
与された後、一定置速度で回転する第1ゴデーロール2
9、更には、第2ゴテ−ロール30を経て、巻取機33
のボビン34に巻かれる。
The cooled and solidified yarn Y passes through a seal guide 24 and is applied with a lubricant by a guide oil supply device 21 provided in an outside atmospheric pressure section, and then transferred to a first Godet roll 2 that rotates at a constant speed.
9. Further, through the second trowel roll 30, the winder 33
is wound on the bobbin 34 of.

第2ゴテ−ロール30と巻取機33との間には、張力検
出器31が設けられており、該張力検出器により糸条Y
の巻取張力を検出ゴると共に、コントローラ32に該張
力検出値を入力し、巻取Ia33のボビン34の回転数
を、巻取張力が一定となるようにコン1〜ローラ32に
より制御するようにしている。
A tension detector 31 is provided between the second gote roll 30 and the winder 33, and the tension detector detects the yarn Y.
At the same time as detecting the winding tension of I have to.

本発明によれば、環状チムニ−12にn Oされた冷却
風吹き込み用配管14に取付けられたバルブ15を調節
することにより、該環状ヂムニー内のポーラス状フィル
ター13で整流された冷却用気体(本実施例では空気)
を所定の流速に保ちながら、走行糸条Yに吹き当て、走
行糸条を積極的に冷却することができる。
According to the present invention, by adjusting the valve 15 attached to the cooling air blowing pipe 14 supplied to the annular chimney 12, the cooling gas ( In this example, air)
The running yarn Y can be blown onto the running yarn Y while maintaining it at a predetermined flow rate to actively cool the running yarn.

さらに、該冷却用気体は配管23を通じて真空ポンプ2
6ににり吸引排出されるため、吐出ポリマ流から発生す
るモノマー、オリゴマ、触媒等の昇華物は該冷却用気体
と共に排出され、該昇華物の減圧室内への析出を防止で
きる。
Further, the cooling gas is supplied to the vacuum pump 2 through the piping 23.
6, sublimates such as monomers, oligomers, catalysts, etc. generated from the discharged polymer flow are discharged together with the cooling gas, thereby preventing the sublimates from being deposited in the vacuum chamber.

本発明に適用できる溶融紡糸可能な熱可塑性重合体は、
ポリ−ε−カプラミド、ポリヘキサメチレンアジパミド
等に代表されるポリアミド類、ポリエチレンテレフタレ
ート、ポリテトラメチレンテレフタレート等に代表され
るポリエステル類、ポリエチレン、ポリプロピレン等の
ポリオレフィン類、及びポリ弗化ビニリデン、ポリ塩化
ビニル、ポリ塩化ビニリデン、ポリアセタール等通常の
溶融紡糸可能な熱可塑性重合体であり、それぞれ2種以
上の共重合ポリマ及び混合ポリマ類を含む。
The melt-spun thermoplastic polymer applicable to the present invention is
Polyamides such as poly-ε-capramide and polyhexamethylene adipamide, polyesters such as polyethylene terephthalate and polytetramethylene terephthalate, polyolefins such as polyethylene and polypropylene, and polyvinylidene fluoride and polyester. These are ordinary thermoplastic polymers that can be melt-spun, such as vinyl chloride, polyvinylidene chloride, and polyacetal, and each contains two or more types of copolymerized polymers and mixed polymers.

また、上記図面に示される実施例では、冷却気体として
空気を使用したが、窒素、水蒸気、その他車合体に不活
性又は活性な気体を目的←応じて用いることができる。
Further, in the embodiment shown in the drawings, air is used as the cooling gas, but nitrogen, water vapor, or any other inert or active gas for vehicle assembly may be used depending on the purpose.

紡糸筒内の真空疫は、紡糸時の空気抵抗力を下げ、糸条
の均一性を向上させるという本発明の効果を更に有効に
達成するために、500Torr以下、特に好ましくは
350Torr以下とすることが好ましい。
The vacuum inside the spinning cylinder should be 500 Torr or less, particularly preferably 350 Torr or less, in order to more effectively achieve the effects of the present invention of reducing air resistance during spinning and improving yarn uniformity. is preferred.

本実施例によれば、糸条Yは一度ゴチーロール29.3
0で紡糸張力を緩和した後巻取られるが、ボデーロール
の1段または2段以上で延伸して巻取る、所謂直接紡糸
延伸法を採用することもできる。
According to this embodiment, the yarn Y is once a gochi roll of 29.3
Although the spinning tension is relaxed at zero and then wound up, a so-called direct spinning/drawing method in which the spinning tension is relaxed in one or more stages of body rolls and then wound up can also be adopted.

油剤の付与位置についても、糸条Yが冷却固化された後
であればどの位置でもよく、外気常圧部だけでなく、条
件によっては口金下部減圧雰囲気室Sa内に設置しても
よい。更には、シールガイド24に油剤を付与する機能
を具備させ、シールガイド24で糸条への給油を兼ねて
もよい。
The lubricant may be applied to any position after the yarn Y has been cooled and solidified, and may be installed not only in the normal pressure part of the outside air but also in the reduced pressure atmosphere chamber Sa below the mouthpiece depending on the conditions. Furthermore, the seal guide 24 may be provided with a function of applying a lubricant, and the seal guide 24 may also serve as a lubricant to the yarn.

油剤付与装置についても、3000m/分以上の高速紡
糸ではガイド給油装置21が好ましく用いられるが、こ
れ以外のローラ給油装置でもよい。
Regarding the lubricant applying device, the guide lubricating device 21 is preferably used in high-speed spinning of 3000 m/min or more, but other roller lubricating devices may be used.

また、糸条Yの冷却を促進するために、固定筒体18の
内壁を冷却し、冷却効果を向上ぜしめてもよい。更には
、減圧雰囲気室sa内の雰囲気温度を直接冷却するため
ピー1〜バイブなどの手段を用いてもよい。また、図示
していないが、紡糸筒内に環状チムニ−とは別の気流吹
き出し部を段り、前記冷却風と同種もしくは異種の気体
を吹出すこともできる。該気流吹出し部は環状チムニ−
から吹き込まれる冷fJJ気体と吸引風量とのバランス
をとり、所定の流量に保ちながら行なう。また、真空ポ
ンプの代りにプロワ−などを用いてもよい。
Further, in order to promote cooling of the yarn Y, the inner wall of the fixed cylinder 18 may be cooled to improve the cooling effect. Furthermore, in order to directly cool down the atmospheric temperature in the reduced pressure atmosphere chamber sa, means such as a vibrator may be used. Further, although not shown, an air flow blowing section separate from the annular chimney may be provided in the spinning tube to blow out the same kind of gas as the cooling air or a different kind of gas. The airflow blowing part is an annular chimney.
This is done while maintaining a predetermined flow rate by balancing the cold fJJ gas blown in from the pump and the suction air volume. Also, a blower or the like may be used instead of the vacuum pump.

本発明は以上説明した通りの構成を採用することにより
、次の如き、優れた効果を奏する。
By employing the configuration described above, the present invention achieves the following excellent effects.

すなわち、本発明では、口金下から糸条出口部までの減
圧雰囲気紡糸室は、糸条出口部にJ′3いて、糸条が通
過し得るだけの微小なスリットを有するシールガイドで
実質的に流体的に充分シールされることにより、機密性
の優れたものとなり、容易に高い減圧状態の減圧雰囲気
紡糸室とすることができる。したがって、減圧気体の密
度を常圧時に比べて数倍以上も小さくすることができ、
糸条にかかる空気抵抗を大幅に低下させ、更に糸条の均
一性を大きく向上させるこができる。
That is, in the present invention, the reduced-pressure atmosphere spinning chamber from the bottom of the spinneret to the yarn outlet is substantially formed by a seal guide J'3 at the yarn outlet and having a minute slit through which the yarn can pass. By being sufficiently fluidly sealed, it has excellent airtightness, and can easily be made into a reduced-pressure atmosphere spinning chamber in a highly reduced-pressure state. Therefore, the density of reduced pressure gas can be made several times smaller than that at normal pressure.
The air resistance applied to the yarn can be significantly reduced, and the uniformity of the yarn can also be greatly improved.

また、上記減圧雰囲気紡糸室に装着されている冷却気体
吹き込み装置部から冷却気体を紡出糸条に当てることに
より、溶融糸条の冷却効果が促進される。さらに、糸条
に吹きつけた冷却気体を真空ポンプで吸引排出すること
により、吐出ポリマ流から発生ずるモノマ、オリゴマ、
触媒等を排出し、これ等昇華物の減圧室内への析出を防
止できる。
Further, by applying cooling gas to the spun yarn from a cooling gas blowing device installed in the reduced pressure atmosphere spinning chamber, the cooling effect of the molten yarn is promoted. Furthermore, by suctioning and discharging the cooling gas blown onto the yarn using a vacuum pump, monomers, oligomers, etc. generated from the discharged polymer flow are removed.
By discharging the catalyst, etc., it is possible to prevent these sublimate substances from being deposited in the vacuum chamber.

更に、本発明では、シールガイドにより実質的に流体的
に充分シールされた糸条を、一定速度で制御されたボデ
ーロール、巻取機などの引取手段で引取るため、減圧雰
囲気紡糸室内の減圧状態(真空度)、冷却風量のコン1
−ロールとは独立に、これら引取手段で紡糸速度、巻取
張力などを制御することができる。したがって、均一性
に優れた糸条を安定的に得ることが可能となる。
Furthermore, in the present invention, in order to take off the yarn that has been substantially and sufficiently fluidly sealed by the seal guide with a taking-off means such as a body roll or a winder controlled at a constant speed, the reduced pressure in the spinning chamber is reduced in the reduced-pressure atmosphere. Condition (degree of vacuum), cooling air volume controller 1
- Spinning speed, winding tension, etc. can be controlled by these take-off means independently of the rolls. Therefore, it becomes possible to stably obtain a yarn with excellent uniformity.

実施例 酸化チタンQ、3wt%を分散した硫酸相対粘度2.6
2のナイロン6ポリマを265℃で溶融し、孔径Q、3
+nn+φ、孔数24ホールの口金より、第1図に示す
減圧雰囲気紡糸筒に、それぞれ45す7分、30g/分
、15g/分の吐出量で吐出し、シールガイドを経て紡
糸筒外に設置しICCボデーロール介して4000m/
分の速度で引取り、巻取機に巻取った。なお、紡糸油剤
として水系丁マルジ三1ン仕上げ剤を付与した。
Example Titanium oxide Q, 3 wt% sulfuric acid with relative viscosity 2.6
The nylon 6 polymer of No. 2 was melted at 265°C, and the pore size Q, 3
+nn+φ, 24-hole nozzle to the reduced pressure atmosphere spinning tube shown in Fig. 1 at a rate of 45.7 minutes, 30 g/min, and 15 g/min, respectively, and installed outside the spinning tube through a seal guide. 4000m/ via ICC body roll
It was taken up at a speed of 1 minute and wound up on a winding machine. In addition, a water-based finishing agent was applied as a spinning oil.

この時、減圧雰囲気紡糸筒内の減圧度は500.350
および250Torrとし、かつ環状ブムニーからの冷
Nl風(本実施例では空気)を400.300および2
0ONn/分のFA量で流入した。
At this time, the degree of vacuum inside the spinning cylinder in a vacuum atmosphere is 500.350.
and 250 Torr, and the cold Nl wind (air in this example) from the annular bumny is 400.300 Torr and 250 Torr.
FA flowed in at an amount of 0ONn/min.

なお、比較例1として、紡糸筒下部のシールガイドを外
し、紡糸筒内を開放常圧(760Torr)とし、環状
チムニ−からの冷却Jilffi400.300 J>
よび20ONIl/分とした場合、比較例2とし−C1
冷却風吹き込みバルブを密閉して環状チムニ−からの冷
却風を全く吹き込まない場合について紡糸を行なった。
In addition, as Comparative Example 1, the seal guide at the bottom of the spinning tube was removed, the inside of the spinning tube was opened to normal pressure (760 Torr), and cooling from the annular chimney was performed using Jilffi 400.300 J>
and 20ONIl/min, Comparative Example 2-C1
Spinning was carried out in the case where the cooling air blowing valve was sealed and no cooling air was blown from the annular chimney.

結果をそれぞれ第1表、第2表、第3表に示す。The results are shown in Tables 1, 2, and 3, respectively.

但し、第1表において、紡糸状況のOは、紡糸筒内に析
出物なし、×は、溶断、引取不能このように、本発明に
よれば、高い均一性を有するナイロン6繊帷を安定して
得ることかぐさた。
However, in Table 1, the spinning status O indicates that there is no precipitate in the spinning tube, and the x indicates that the nylon 6 fiber with high uniformity is not fused or can be taken out. Kagusata gets it.

但し、第2表、第3表において、紡糸状況の△は、紡糸
張力が高く、毛羽発生、 Δ〜×は、紡糸筒内に析出物
多い
However, in Tables 2 and 3, spinning conditions △ indicate high spinning tension and fluff is generated, and Δ to × indicate that there is a lot of precipitate in the spinning tube.

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

第1図は本発明に係る減圧雰囲気紡糸装置の代表的な実
施態様を示す概略図であり、第2図は本発明装置に適用
されるシールガイドの一実施態様を示すもので、(イ)
は平面図、(ロ)は側面図を示す。 1・・・紡糸機 2・・・原料ホッパー3・・・押出し
機 4・・・メタリングポンプ5・・・変速機料きモー
タ 6・・・バック 7・・・口金 8・・・加熱筒 9・・・熱雷対 10・・・温度コントローラ 11・・・断熱筒 12・・・環状ヂムニー13・・・
ポーラス状フィルター 14・・・冷却風吹き込み用配管 15・・・風量調節バルブ 16.16′・・・シール部材 17・・・可動筒体 18・・・固定筒体19・・・シ
リンダー 20・・・シリンダー昇降用案内棒 21・・・油剤付与装置 22・・・圧ノココントローラ 23・・・排気用配管 24・・・シールガイド25・
・・ホルダー −26・・・真空ポンプ27・・・圧力
剖 28・・・シールガイドのスリット 29・・・第1ゴデーロール 30・・・第2ゴテ−ロール 31・・・張力検出器 32・・・巻取機コントローラ
33・・・巻取機 34・・・ボビン 特許出願人 東し株式会社 ノ 昭和 年 月 日 特許庁長官 若 杉 和 夫 殿 1、事件の表示 昭和59年特許願第19862号 2、発明の名称 合IRIllIla)溶融紡糸方法および装置3、補正
をする者 事件との関係 特許出願人 4、補正命令の日付 自 発 5、補正により増加する発明の数 0 各欄および図面 7、補正の内容 明srs中 〈1)第9頁8行目「シリンダ」を「シリンダー」に補
正する。 (2)第10頁5〜6行目「ガイドホルダー25」を「
ガイドホルダー25.25′」に補正する。 (3)第13頁7行目「真空度」を「減圧度」に補正す
る。 (4)第14頁7行目「内壁」を「外壁」に補正する。 (5)第15頁3行目「機密性」を「気密性」に補正す
る。 (6)第20頁12行目「25・・・ホルダー」をr2
5.25’・・・ホルダー」に補正する。 (7)第20頁13行目「圧力]」を「真空耐」に補正
する。 図面中 (8)「第1図」および[第2図Jを別添の通り補正す
る。 毎1図 34
FIG. 1 is a schematic diagram showing a typical embodiment of a reduced pressure atmosphere spinning device according to the present invention, and FIG. 2 is a diagram showing an embodiment of a seal guide applied to the device of the present invention.
1 shows a plan view, and (b) shows a side view. 1... Spinning machine 2... Raw material hopper 3... Extruder 4... Metering pump 5... Variable speed spinning motor 6... Back 7... Mouthpiece 8... Heating tube 9...Thermal lightning pair 10...Temperature controller 11...Insulating cylinder 12...Annular chimney 13...
Porous filter 14...Cooling air blowing pipe 15...Air volume adjustment valve 16, 16'...Seal member 17...Movable cylinder 18...Fixed cylinder 19...Cylinder 20... - Cylinder lifting guide rod 21... Oil application device 22... Pressure saw controller 23... Exhaust pipe 24... Seal guide 25.
... Holder -26 ... Vacuum pump 27 ... Pressure analyzer 28 ... Seal guide slit 29 ... First Godet roll 30 ... Second Godet roll 31 ... Tension detector 32 ... - Winding machine controller 33... Winding machine 34... Bobbin Patent applicant: Toshi Co., Ltd., Director of the Japan Patent Office, Kazuo Wakasugi, 1, Showa 59 Patent Application No. 19862 2. Name of the invention (IRIllIla) Melt spinning method and apparatus 3. Relationship with the case of the person making the amendment Patent applicant 4. Date of the amendment order Initiator 5. Number of inventions increased by the amendment 0 Each column and drawing 7. Details of correction in srs <1) "Cylinder" on page 9, line 8 is corrected to "cylinder". (2) On page 10, lines 5-6, change “Guide holder 25” to “
Correct the guide holder to 25.25'. (3) Correct "degree of vacuum" on page 13, line 7 to "degree of reduced pressure." (4) Correct “inner wall” on page 14, line 7 to “outer wall”. (5) On page 15, line 3, "confidentiality" is corrected to "airtightness." (6) Page 20, line 12, “25...Holder” is r2
5. Correct to 25'...Holder. (7) On page 20, line 13, "pressure" is corrected to "vacuum resistance". (8) “Figure 1” and “Figure 2 J” in the drawings are corrected as attached. 1 figure every 34

Claims (2)

【特許請求の範囲】[Claims] (1)溶融紡糸可能な熱可塑性重合体を紡糸口金直下に
配置されかつ外気雰囲気部よりも減圧に保持された減圧
雰囲気紡糸筒内に吐出し、該紡糸筒内に設(Jられた冷
却風吹き込み部から冷却風を流入uしめつつ紡出糸条を
冷却固化した後、実質的に充分に流体的にシールされた
該紡糸筒の出口部より該紡糸筒外に設けた引取手段によ
って冷却糸条を外気雰囲気部へ導き出すことを特徴とす
る合成繊維の溶融紡糸方法。
(1) A thermoplastic polymer that can be melt-spun is discharged into a reduced-pressure atmosphere spinning tube that is placed directly below the spinneret and is maintained at a lower pressure than the outside atmosphere. After the spun yarn is cooled and solidified while cooling air is introduced from the blowing section, the cooled yarn is collected from the outlet of the spinning tube, which is substantially sufficiently fluidly sealed, by a take-up means provided outside the spinning tube. A method for melt-spinning synthetic fibers, characterized by introducing the fibers into an open air atmosphere.
(2)熱可塑性重合体の紡糸口金直下に、該口金の周囲
を取囲み、吐出された糸条の糸道に沿って延びる減圧雰
囲気紡糸筒を配置し、該紡糸筒には冷却棟1吹き込み部
が設けられていると共に、下端部は実質的に充分に流体
的にシールされた糸条出口部を有しており、かつ該紡糸
筒の外に紡出糸条の引取手段を有することを特徴とする
合成ll1Hの溶融紡糸装置。
(2) Directly below the spinneret for thermoplastic polymer, a reduced-pressure atmosphere spinning tube is placed that surrounds the spinneret and extends along the path of the discharged yarn, and the spinning tube is equipped with a cooling ridge 1 blowing into the spinneret. and a lower end having a substantially fully fluidically sealed yarn exit portion and having means for taking off the spun yarn outside the spinning tube. Features: Melt spinning device for synthetic ll1H.
JP59019862A 1984-02-08 1984-02-08 Synthetic fiber melt spinning equipment Expired - Lifetime JPH0653968B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59019862A JPH0653968B2 (en) 1984-02-08 1984-02-08 Synthetic fiber melt spinning equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59019862A JPH0653968B2 (en) 1984-02-08 1984-02-08 Synthetic fiber melt spinning equipment

Publications (2)

Publication Number Publication Date
JPS60167906A true JPS60167906A (en) 1985-08-31
JPH0653968B2 JPH0653968B2 (en) 1994-07-20

Family

ID=12011027

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59019862A Expired - Lifetime JPH0653968B2 (en) 1984-02-08 1984-02-08 Synthetic fiber melt spinning equipment

Country Status (1)

Country Link
JP (1) JPH0653968B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101533998B1 (en) * 2014-03-25 2015-07-07 전영곡 Manufacturing device of filamant for 3d printer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5196523A (en) * 1975-02-14 1976-08-24 Yojuboshutsushino reikyakuhoho
JPS55137207A (en) * 1979-04-13 1980-10-25 Toray Ind Inc Melt-spinning device for synthetic fiber
JPS578206A (en) * 1980-06-17 1982-01-16 Shin Etsu Chem Co Ltd Suspension polymerization of vinyl chloride type monomer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5196523A (en) * 1975-02-14 1976-08-24 Yojuboshutsushino reikyakuhoho
JPS55137207A (en) * 1979-04-13 1980-10-25 Toray Ind Inc Melt-spinning device for synthetic fiber
JPS578206A (en) * 1980-06-17 1982-01-16 Shin Etsu Chem Co Ltd Suspension polymerization of vinyl chloride type monomer

Also Published As

Publication number Publication date
JPH0653968B2 (en) 1994-07-20

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