JPS6119805A - Method of high-speed wet spinning and its device - Google Patents

Abstract

PURPOSE:To make it possible to carry out high-speed wet spinning without causing reduction in physical properties of yarn and occurrence of spinning fluff, by introducing thin flows of a spinning solution extruded from a spinneret into a spinning funnel having a specific structure, making a coagulating solution drop, drawing yarn tens times instantly. CONSTITUTION:A great number of thin flows of a spinning solution extruded from the spinneret 7 are introduced into the spinning funnel A. The spinning funnel A has a structure wherein the outside funnel 1 fixed by the fixing tool 3, the inside funnel 2 by the fixing tool 4, a coagulating solution fed from the side part of the outside funnel 1 is made to flow from the hole 6 and to flow into the inside funnel 2, and the bottom part (outlet) K of the inside funnel 2 is made narrow in a tapered way. By this structure, spinning thin flows are instantly drawn tens times. Then, one or more of the liquid jet nozzles C are set in a free flow zone of the dropping yarn 10, the second coagulating solution is jetted from the nozzles to the freely dropping yarn 10 and the first coagulating solution, so that the velocity of the dropping yarn 10 is reduced and the dropping yarn is coagulated. Then, the yarn F which was subjected to solid-liquid separation by the gas jet nozzle G is wound.

Description

【発明の詳細な説明】 〈産業上の利用分野〉 本発明は、人造繊維の高速度湿式紡糸法に関する。さら
に詳しくは、湿式紡糸方法、特に流下式緊張紡糸法にお
いて、紡糸速度１１０００ｍ／分以上とした紡糸方法に
関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a high-speed wet spinning method for man-made fibers. More specifically, the present invention relates to a wet spinning method, particularly a falling tension spinning method, in which the spinning speed is 11,000 m/min or more.

〈従来の技術〉 従来より、人造繊維原糸メーカーの企業体質を抜本的に
改善するために高速度紡糸法に関する技術開発が広範に
、しかも活発に行われている。湿式紡糸方法、とシわけ
流下式緊張紡糸法における高速度紡糸方法に関しても、
例えば、本発明の出願人による、特公昭４７−２９９２
６号公報、特公昭４７−２９９２７号公報など幾２かの
提案がなされている。特に特公昭４７−２９９２７号公
報では紡糸速度８００ｍ／分を可能とした紡糸方法が開
示されている。<Conventional Technology> Technological development regarding high-speed spinning methods has been widely and actively carried out in order to fundamentally improve the corporate structure of man-made fiber yarn manufacturers. Regarding the wet spinning method and the high speed spinning method in the falling tension spinning method,
For example, Japanese Patent Publication No. 47-2992 by the applicant of the present invention.
Several proposals have been made, including Publication No. 6 and Japanese Patent Publication No. 47-29927. In particular, Japanese Patent Publication No. 47-29927 discloses a spinning method that enables a spinning speed of 800 m/min.

流下式緊張紡糸法において高速度紡糸を行うには、糸条
と凝固液との接触摩擦抵抗を可及的に小さくシ、かつ張
力の低い状態で充分に凝固延伸させることが重要な技術
的視点であるが、前記特公昭４７−２９９２７号公報で
は、紡糸漏斗の下方、　に自由落下部（第１次自由落下
部）を設けて糸条全延伸させ、かつ凝固液噴射器を用い
て流下県東に第２凝固液を噴射して併合流とし適当な長
さの第２次自由落下部を設けることにより糸条の凝固度
を適度に保つことに成功している。第２図は、特公昭４
７−２９９２７号公報における紡糸方法の実施例を表わ
した説明図である。図中、Ａは紡糸漏斗、Ｂは自由落下
部であシ、紡糸漏斗Ａから凝固液噴射器冒ｃｔでの自由
落下部りが第１次自由落下部、その下方のＥが第２次自
由落下部である。In order to perform high-speed spinning in the down-flow tension spinning method, it is important to minimize the frictional resistance of the contact between the yarn and the coagulating liquid, and to sufficiently coagulate and draw it under low tension. However, in the above-mentioned Japanese Patent Publication No. 47-29927, a free fall section (first free fall section) is provided below the spinning funnel to fully stretch the yarn, and a coagulating liquid injector is used to discharge the flowing precipitate. By injecting the second coagulating liquid to the east to create a merging flow and providing a second free fall portion of an appropriate length, the degree of coagulation of the yarn has been successfully maintained at an appropriate level. Figure 2 shows the Tokuko Sho 4
FIG. 7 is an explanatory diagram showing an example of the spinning method in Publication No. 7-29927. In the figure, A is the spinning funnel, B is the free fall part, the free fall part from the spinning funnel A to the coagulation liquid injector is the first free fall part, and E below it is the second free fall part. This is the falling part.

このような紡糸方法では、第１次自由落下部で凝固液の
自由落下により糸条の延伸が進められ、第２次自由落下
部では主に凝固が進められておシそれぞれ゛自由落下部
の機能が異なっていることが最大の特色である。実際に
紡糸速度５００〜８００ｍ／分で紡糸する場合には、第
１次自由落下長、第２次自由落下長、第１凝固液および
第２薮固液の温度と量などの紡糸条件を最適化する必要
がある。この紡糸方法では可紡速度を上げるためには、
第１凝固液の量を増し、かつ第１次自由落下長を長くす
ることにより糸条の初期延伸を進め、第２凝固液の酢を
増し第２次自由落下長を長くすることにより凝固を進め
て込る。In such a spinning method, the drawing of the yarn progresses due to the free fall of the coagulated liquid in the first free fall zone, and the coagulation progresses mainly in the second free fall zone. The biggest feature is that they have different functions. When actually spinning at a spinning speed of 500 to 800 m/min, the spinning conditions such as the first free fall length, the second free fall length, the temperature and amount of the first coagulating liquid and the second solid liquid should be optimized. It is necessary to In order to increase the spinning speed with this spinning method,
By increasing the amount of the first coagulating liquid and lengthening the first free fall length, the initial drawing of the yarn is promoted, and by increasing the amount of vinegar in the second coagulating liquid and lengthening the second free fall length, coagulation is carried out. Go ahead and get in.

〈発明が解決しようとする問題点〉 しかしながら、本発明者等は前記公報に基づき追試を行
ったところ、前述紡糸方法には高紡速化した場合、次の
ような３つの問題点が発生することを発見した。<Problems to be Solved by the Invention> However, the present inventors conducted additional tests based on the above-mentioned publication, and found that the following three problems occur in the above-mentioned spinning method when the spinning speed is increased. I discovered that.

第１の問題点は、第１凝固液の量を多くした場合、紡糸
漏斗内管中での凝固液流の整流化が難かしく、内管中で
糸条が揺れて凝固、延伸ム、７が起ル紡糸毛羽および切
糸が発生し易くなることである。特に銅安セルローズ繊
維の紡糸法においては漏斗内管中で糸条が揺れると、水
酸化鋼のスケールが漏斗内壁面に付着して切糸、紡糸毛
羽の原因となるために漏斗内管中での糸揺れは絶対に避
けねばならない。この糸揺れを防止するには第１＃固液
の温度を下げて漏斗内でめ糸条の凝固を遅らせてやれば
よいが、その場合、自由落下部下方の糸条の引取点（第
２図のＦ）での糸条の凝固が不足するために糸条は凝固
液流に引取られて県立てが不能になる。つまシ紡糸速度
が高くなるにつれて第１凝固液量を増加させねばならな
いが、安定して紡糸できる第１凝固液の温度範囲は次第
に狭くなシ、紡糸速度８００ｍ／分以上になると安定紡
糸ができなくなる。The first problem is that when the amount of the first coagulating liquid is increased, it is difficult to straighten the flow of the coagulating liquid in the inner tube of the spinning funnel, and the yarn sways in the inner tube, resulting in coagulation, drawing, etc. This means that ruffled yarn fuzz and cut threads are more likely to occur. In particular, in the spinning method of copper ammonium cellulose fiber, when the yarn sways in the tube inside the funnel, the scale of hydroxide steel adheres to the inner wall surface of the funnel, causing cut threads and fluff. Shaking of the thread must be avoided at all costs. In order to prevent this yarn swaying, the temperature of #1 solid liquid can be lowered to delay the coagulation of the yarn in the funnel, but in that case, the yarn take-up point (second Due to insufficient coagulation of the yarn at point F in the figure, the yarn is taken up by the flow of coagulating liquid, making pre-coagulation impossible. As the spinning speed increases, the amount of the first coagulating liquid must be increased, but the temperature range of the first coagulating liquid that allows stable spinning becomes progressively narrower, and stable spinning cannot be achieved at spinning speeds of 800 m/min or higher. It disappears.

第２の問題点は、可紡性を上げるために第１次自由落下
を長くすると自由落下部での糸条の横揺れが大きくな）
、凝固液噴射器買の中心に糸条が落下せず、凝固ムラを
起し易いこと、および紡糸速度８００ｍ／分以上では落
下する凝固液と糸条の運動エネルギーが高いために自由
落下部下方の糸条の引取点において一部の単糸が凝固液
に引取られて垂れ下がり、！断して紡糸毛羽が多発し安
定に紡糸で゛きないことである。The second problem is that if the first free fall is lengthened in order to improve spinnability, the horizontal sway of the yarn at the free fall part becomes large.
The yarn does not fall to the center of the coagulating liquid injector, which tends to cause uneven coagulation, and at spinning speeds of 800 m/min or higher, the kinetic energy of the falling coagulating liquid and yarn is high, so the free falling downward part occurs. At the yarn take-up point, some of the single threads are taken up by the coagulation liquid and hang down! The main problem is that spinning fuzz occurs frequently and stable spinning cannot be achieved.

第３の問題点は、この紡糸方法で紡糸して得られる係の
基本物性は、強度、伸度等の基本物性については従来法
蓮みのものが得られるが、２，３の消費物性が紡速を上
けると著しく低下するということである。例えば、銅安
セルロー、ｒｍ維においては織物の耐シワ性および寸法
安定性を向上するために樹脂加工を行うが、樹脂加工後
の布の屈曲摩耗強度という消費特性は紡糸速度が高くな
るにしたがい急激に低下し、紡糸条件を最適化して本せ
ｂぜい紡糸速度６００ｍ／分までしか従来法並みの屈曲
摩耗強度を保てないのである。この他にも湿潤状態での
繊維のフィブリル化のしにくさく織物の後加工工程での
スレ欠点の起しにくさ）を表わす耐フイブリル化度とい
う特性が紡糸速度を上げるにつれて低下するのである。The third problem is that the basic physical properties of the yarn obtained by spinning with this spinning method, such as strength and elongation, are comparable to conventional methods, but a few consumable physical properties are This means that as the speed increases, it decreases significantly. For example, ammonium cellulose and RM fibers are processed with resin to improve the wrinkle resistance and dimensional stability of the fabric, but the consumption characteristic of the fabric after resin processing, such as the bending abrasion strength, decreases as the spinning speed increases. The bending abrasion strength decreases rapidly, and the bending abrasion strength comparable to that of the conventional method can only be maintained up to a spinning speed of 600 m/min by optimizing the spinning conditions. In addition, as the spinning speed increases, the degree of fibrillation resistance, which indicates the resistance of fibers to fibrillation in a wet state and the resistance to scratching defects in the fabric's post-processing process, decreases as the spinning speed increases.

上述した３つの問題点のために、この技術で安定紡糸可
能な紡糸速度の上限は７００〜８００ｍ／分、消費特性
からみて操業化可能な紡糸速度の上限は５００ｍ／分で
あることが明らかになった。Due to the three problems mentioned above, it is clear that the upper limit of the spinning speed that can be stably spun using this technology is 700 to 800 m/min, and from the viewpoint of consumption characteristics, the upper limit of the spinning speed that can be operationalized is 500 m/min. became.

本発明者等は前述した従来技術の問題点について詳しく
検討した結果、この方法では紡糸速度６００ｍ／分以上
になると紡糸部での糸条の凝固と延伸のバランスが崩れ
ているとの結論を得た。As a result of a detailed study of the problems of the prior art described above, the present inventors concluded that in this method, when the spinning speed exceeds 600 m/min, the balance between coagulation and drawing of the yarn in the spinning section is lost. Ta.

すなわち流下式緊張紡糸法においては凝固液による糸条
の初期延伸倍率が低い・と、凝固が進んだ段階で巻取張
力により過剰に延伸されることになシ、そのために製品
糸の物性が低下したシ、紡糸毛羽が発生し易くなるもの
と思われる。In other words, in the flow-down tension spinning method, if the initial stretching ratio of the yarn by the coagulation liquid is low, the yarn will be excessively stretched by the winding tension at the stage of coagulation, which will deteriorate the physical properties of the product yarn. It is thought that the occurrence of spin fuzz is likely to occur more easily.

紡糸速度が高くなるほど初期の延伸が不足するのは、次
式（１）より容易に理解される。漏斗出口の凝固液速度
をτ。（ｍ７分）とすると漏斗出口から距離ｘ（ｃｍ　
）の位置でめ凝固液速度ｖ、Ｎ（ｍ７分）は式（１）で
表わされる。It is easily understood from the following equation (1) that the higher the spinning speed, the more insufficient the initial stretching becomes. τ is the solidified liquid velocity at the funnel outlet. (m7 minutes), distance x (cm) from the funnel exit
) The coagulating liquid velocity v, N (m7 minutes) is expressed by equation (1).

〜＝ｏ、６ａし晶アゴｉ７・・・（１）第５図は、漏斗
出口からの自由落下距離Ｘと凝固液速度〜との関係を示
したグラフである。従来技術ではτ。＝２０〜４０ｍ１
分程度であった。~=o, 6a and crystal jaw i7... (1) FIG. 5 is a graph showing the relationship between the free fall distance X from the funnel outlet and the coagulation liquid velocity ~. In the conventional technology, τ. =20~40m1
It was about a minute.

このτ。”　２０〜４０ｍ／分程度で紡糸した場合自由
落下長ｘ　＝　２００　ｃｍｋとると、その地点で凝固
液速度は３８０ｍ／分程度、Ｘ＝４００Ｃｍでは５２０
ｍ／分程度となる。したがって最終紡糸速度６００ｍ／
分程度迄であれば自由落下長を長くとることにより、全
延伸の６〜８割を凝固液により延伸することができる。This τ. ” When spinning at a speed of about 20 to 40 m/min, if the free fall length x = 200 cmk, the coagulating liquid speed at that point is about 380 m/min, and at x = 400 cm, it is 520 m/min.
m/min. Therefore, the final spinning speed is 600 m/
By increasing the free fall length, 60 to 80% of the total stretching can be done by the coagulating liquid.

併し紡糸速度が高くなるにつれて凝固液で延伸できる割
合は低くなる。However, as the spinning speed increases, the rate of stretching with the coagulation liquid decreases.

例えば紡糸速度８００ｍ／分とした場合、第１次自由落
下長をＸ”２００ｃｒｎととっても凝固液速度は３００
ｍ／分程度しかならないため最終紡糸速度の５割弱まで
しか初期延伸できないことになる。For example, when the spinning speed is 800 m/min, the coagulation liquid speed is 300 m/min even if the first free fall length is X"200 crn.
Since the spinning speed is only about m/min, initial stretching can only be performed at a little less than 50% of the final spinning speed.

このことが紡糸速度８００ｍ／分以上では紡糸毛羽が多
発して安定に紡糸できない原因である。従って高い紡糸
速度で安定に紡糸ができ、物性を従来法並みに維持する
には初期の延伸を進める必要がある。This is the reason why spinning fuzz occurs frequently at spinning speeds of 800 m/min or more, making stable spinning impossible. Therefore, in order to be able to stably spin the fiber at a high spinning speed and maintain physical properties comparable to those of conventional methods, it is necessary to advance the initial drawing.

初期延伸を進める方法としては、第１次自由落下長を長
くとる方法と、漏斗出口の凝固液速度ν。全土ける方法
が考えられるが、第１次自由落下長を長くとる方法は前
に述べた第２の問題点のために限界がある。凝固液速度
Ｖ。ｆｅ上げる場合、第５図から明らかなように、ｖｏ
で４００〜５００ｍ／分以上の値にしないと初期延伸は
進まない。As a method for proceeding with the initial stretching, there is a method of increasing the first free fall length, and a method of increasing the coagulation liquid velocity ν at the funnel outlet. Although a method of going all the way is possible, there is a limit to the method of increasing the length of the first free fall due to the second problem mentioned above. Coagulation liquid velocity V. As is clear from Fig. 5, when increasing fe, vo
The initial stretching will not proceed unless the value is set to 400 to 500 m/min or more.

従って第１凝固液量は従来法程度とし、第４図に示す従
来の漏斗内管の医長管部Ｊの内径ｄ２を小さくしなけれ
ばならない。例えば第１凝固液口が２１７分でおる場合
、τ。＝５００ｍ／分とするには医長管部の内径ｄ２は
２．３雪φ、第１凝固液廿が１！／分の場合、１．６１
１１１１φ程度にしなければならない。ところが実際に
このような寸法の従来型の漏斗を用いて紡糸すると初期
延伸が進むために確かに紡糸毛羽は減少するが、医長管
内の液流が乱流になるために医長管内で糸条の揺れが発
生し易く安定に紡糸できないという知見が得られた。Therefore, the amount of the first coagulating liquid must be the same as in the conventional method, and the inner diameter d2 of the medical length tube section J of the conventional funnel inner tube shown in FIG. 4 must be made small. For example, if the first solidification liquid inlet takes 217 minutes, τ. = 500 m/min, the inner diameter d2 of the medical pipe section is 2.3 snow φ, and the first coagulation liquid length is 1! / minute, 1.61
It must be about 1111φ. However, when a conventional funnel with such dimensions is actually used for spinning, the initial drawing progresses, so the amount of yarn fluff is reduced, but the liquid flow in the tube becomes turbulent, causing the thread to become thinner in the tube. It was found that shaking easily occurs and stable spinning cannot be achieved.

本発明者等は、上述したように従来技術の問題点を明ら
かにし、その原因を究明することにより従来技術の壁を
突破するべく鋭意研究を進めて本発明をなすに到った。The inventors of the present invention have clarified the problems of the prior art as described above, investigated the causes thereof, and conducted intensive research to overcome the barriers of the prior art, thereby achieving the present invention.

〈問題点を解決するための手段〉 本発明の目的は、紡糸速度８００ｍ／分は言うに及ばず
、１０００ｍ／分以上においても安定に紡糸が可能で、
得られる糸も毛羽のない、物性面においても従来法と同
程度およびそれ以上の糸質であるような高速度湿式紡糸
方法およびその装置を提供することにある。。<Means for Solving the Problems> The object of the present invention is to enable stable spinning not only at a spinning speed of 800 m/min but also at a spinning speed of 1000 m/min or higher;
The object of the present invention is to provide a high-speed wet spinning method and an apparatus therefor, in which the resulting yarn is free of fuzz and has a quality comparable to or better than that of conventional methods in terms of physical properties. .

上記目的を達成するための方法の発明は、湿式紡糸法、
特に流下式緊張紡糸法において、紡糸漏斗の出口部をチ
ー７４−状に細くした形状の延伸加速漏斗を用いて、第
１凝固液により未凝固の糸条を出口部で瞬間的に数十倍
延伸させ、その下方に糸条お“よび第１凝固液の自由落
下部を設け、その自由落下部の中間に１個以上の液体噴
射器を設けて前記紡糸漏斗より流下してくる第１凝固液
と糸条とに向けて第２凝固液を噴射し併合流とし、流下
糸条を減速し、かつ凝固せしめ、さらに下方に気体噴射
器を設けて上方より流下してくる凝固液と糸条とに向け
て気体を噴射し、凝固液と糸条とを分離した後、糸条を
引取るようにせしめて紡糸することを特徴とする高速度
湿式紡糸方法である。The invention of a method for achieving the above object includes a wet spinning method,
In particular, in the falling tension spinning method, a drawing accelerating funnel with a Q-shaped outlet is used to instantaneously increase the uncoagulated yarn by several tens of times at the exit with the first coagulating liquid. A free-falling section of the yarn and a first coagulated liquid is provided below the yarn, and one or more liquid injectors are provided in the middle of the free-falling section, so that the first coagulated liquid flowing down from the spinning funnel is drawn. A second coagulating liquid is injected towards the liquid and yarn to form a merging flow, slowing down and coagulating the falling yarn, and a gas injector is provided below to spray the coagulating liquid and yarn flowing down from above. This is a high-speed wet spinning method characterized by injecting gas toward the coagulating liquid to separate the coagulating liquid and the yarn, and then pulling the yarn to perform spinning.

前記目的を達成するための装置の発明は、紡糸原液を紡
糸口金よ）漏斗内に紡糸する紡糸漏斗装置と、その紡糸
漏斗装置の下方に設けられて前記紡糸漏斗装置から垂下
する未凝固の糸条を加速しながら延伸して凝固させる延
伸凝固加速装置とを含んで成る高速度湿式紡糸装置であ
って、前記紡糸漏斗装置が紡糸口金と、その紡糸口金の
下方に配置された内側漏斗と、その内側漏斗を囲むよう
に形成されて内側漏斗に凝固液を供給する外側漏斗を含
んで構成された二重漏斗型の装置であシ、前記内側漏斗
の出口部分の内側形状が下方に向けてテーパー状に細く
形成されていることを特徴とする高速度湿式紡糸装置で
ある。The invention of a device for achieving the above-mentioned object is a spinning funnel device that spins a spinning dope into a spinneret (through a spinneret), and an uncoagulated yarn that is provided below the spinning funnel device and hangs from the spinning funnel device. A high-speed wet spinning device comprising a draw coagulation accelerator for drawing and coagulating a strip while accelerating it, the spinning funnel device comprising a spinneret and an inner funnel disposed below the spinneret; It is a double funnel type device, which includes an outer funnel formed to surround the inner funnel and supply the coagulating liquid to the inner funnel, and the inner shape of the outlet portion of the inner funnel is directed downward. This is a high-speed wet spinning device characterized by being formed into a narrow tapered shape.

なお前記延伸凝固加速装置が前記紡糸漏斗装置の下方に
引離された位置に設けられて他の凝固液を前記糸条に向
けて噴射する少くとも１個の液体噴射器と、その液体噴
射器の下方に設けられて糸条に気体を噴射する少くとも
１個の気体噴射器とを含んで成るとより好ましい。At least one liquid injector in which the stretch coagulation accelerator is provided at a position separated below the spinning funnel device and injects another coagulation liquid toward the yarn; and the liquid injector. It is more preferable to include at least one gas injector disposed below the yarn for injecting gas onto the yarn.

以下余白 以下本発明を本発明の実施態様の一例を示す図面に従い
詳述する。第１図は１本発明の一実施態様を示す説明図
である。図において、Ａは紡糸漏斗、Ｂは紡出糸条の自
由落下部、Ｃ１およびＣ２は液体噴射器、Ｇは気体噴射
器である。紡糸漏斗Ａは外部漏斗１の内部に延伸加速漏
斗２を固定具３および４を用いて固定している。５は第
１凝固液の供給口であシ、供給された第１凝固液は固定
具３に穿孔された通過孔６を通シ上昇して紡糸漏斗内に
満され漏斗２内を流下せしめられる。７は紡糸口金であ
シ、上記外部漏斗１および漏斗２と組合せられ、二重漏
斗型の紡糸口金、漏斗組合せ装置として構成されている
。８は紡糸原液の供給管であシ、９はそれを開閉するコ
ックである。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail in the following margins with reference to the drawings showing an example of an embodiment of the present invention. FIG. 1 is an explanatory diagram showing one embodiment of the present invention. In the figure, A is a spinning funnel, B is a free falling part of the spun yarn, C1 and C2 are liquid injectors, and G is a gas injector. The spinning funnel A has a draw accelerating funnel 2 fixed inside an external funnel 1 using fixtures 3 and 4. Reference numeral 5 denotes a supply port for the first coagulating liquid, and the supplied first coagulating liquid rises through a passage hole 6 formed in the fixture 3, fills the spinning funnel, and is caused to flow down within the funnel 2. . Reference numeral 7 denotes a spinneret, which is combined with the external funnel 1 and funnel 2 to form a double funnel type spinneret and funnel combination device. 8 is a supply pipe for the spinning stock solution, and 9 is a cock for opening and closing it.

次に、上記したような漏斗組合せ装置を用いての紡糸に
際しては、紡糸口金７に穿孔された多数の紡糸孔よ勺紡
糸原液が第１凝固液内に吐出される。吐出された紡糸原
液の細流は流下式緊張紡糸法により、漏斗２を流下する
第１凝固液により凝固作用と延伸作用を受は糸条１０に
形成される゛。Next, during spinning using the funnel combination device as described above, the spinning dope is discharged into the first coagulating liquid through a large number of spinning holes formed in the spinneret 7. A trickle of the discharged spinning dope is subjected to coagulation and stretching by the first coagulating liquid flowing down the funnel 2, and is formed into a yarn 10 by the falling tension spinning method.

第３図は本発明の出口部分をテーパー状に細くした形状
の延伸加速漏斗を示す側断面図であシ、第４図は従来の
内部漏斗を示す側断面図である。FIG. 3 is a side sectional view showing a draw accelerating funnel according to the present invention having a tapered exit portion, and FIG. 4 is a side sectional view showing a conventional internal funnel.

図においてＨは円筒管、工はテーパー管、Ｊは医長管、
Ｋは第２テーパー管である。本発明の延伸加速漏斗は第
２テーノ４−管を形成し、漏斗の出口部分の内側形状を
テーパー状に細く形成しているのが特徴である。この形
状の漏斗を用いると、漏斗の医長管部までの凝固液流は
層流状態を維持できて糸揺れが起きＫ〈く、また漏斗出
口部分のテーパー管内で凝固液流速は急激に増加するが
乱流となる領域が短＜（Ｊ４＝１０〜８０　ｍ）　、か
つ糸条の凝固塵も低いために糸条は糸揺れを生ずるとと
なく殆んど瞬間的に数十倍加速延伸され、凝固液と共に
漏斗出口より噴射される。In the figure, H is a cylindrical tube, ENG is a tapered tube, J is a medical length tube,
K is a second tapered tube. The draw accelerating funnel of the present invention is characterized in that it forms a second Teno 4-tube and that the inside shape of the exit portion of the funnel is tapered and narrow. When a funnel with this shape is used, the flow of the coagulated liquid up to the medical length tube part of the funnel can maintain a laminar flow state, preventing thread shaking, and the flow rate of the coagulated liquid increases rapidly in the tapered pipe at the exit of the funnel. Since the region where the flow becomes turbulent is short (J4 = 10 to 80 m) and the amount of coagulated dust on the yarn is low, the yarn is stretched at an accelerated speed of several tens of times almost instantaneously without causing yarn shaking. , is injected from the funnel outlet together with the coagulating liquid.

この漏斗の第１の長所は、漏斗内管での糸条の揺れの発
生が抑制され紡糸の安定性が著しく高いという点である
。このことにより紡糸速度１５００〜２０００ｍ・７分
までは紡糸可能である。さらに第２の長所は第３図に示
す漏斗の出口内径ｄ３を適当に選び、初期延伸を進める
ことにより、紡糸速度１０００ｍ／分以上でも紡糸毛羽
を従来法と同程度に下げられる点である。第３の長所は
紡糸速度１０００ｍ／分以上でも製品糸の伸度、屈曲摩
耗強度、耐フイブリル化度などの物性を従来法と同程度
またはそれ以上に形成できる点である。第４の長所は、
紡出が従来法と同程度に容易にでき、漏斗内管に単糸が
引掛る現象などが起らない点である。妓お従来型の医長
管Ｊの内径ｄ２を小さくした漏斗を用いた場合には紡出
が非常に難かしいという問題点があった。The first advantage of this funnel is that the occurrence of swaying of the yarn in the inner tube of the funnel is suppressed, resulting in extremely high spinning stability. This allows spinning at a spinning speed of 1,500 to 2,000 m/7 minutes. A second advantage is that by appropriately selecting the exit inner diameter d3 of the funnel shown in FIG. 3 and proceeding with the initial drawing, the spinning fluff can be reduced to the same level as in the conventional method even at a spinning speed of 1000 m/min or higher. The third advantage is that even at a spinning speed of 1000 m/min or more, the physical properties of the product yarn, such as elongation, bending abrasion strength, and fibrillation resistance, can be made to be comparable to or better than conventional methods. The fourth advantage is
Spinning can be performed as easily as in the conventional method, and the phenomenon of single yarns getting caught in the inner tube of the funnel does not occur. When using a funnel in which the inner diameter d2 of the conventional medical tube J was reduced, there was a problem in that spinning was extremely difficult.

このように出口部分をテーパー状に細くした形状の延伸
加速漏斗を用いることが本発明の最大の要素である。そ
してこのような延伸加速漏斗を用゛いることにより未凝
固の糸条を瞬間的に数十倍に加速延伸するという技術思
想は湿式紡糸においては従来にない新規な技術思想であ
る。The most important element of the present invention is the use of a draw accelerating funnel having a tapered outlet portion. The technical idea of using such a drawing accelerating funnel to instantaneously draw an uncoagulated yarn at an accelerated speed of several tens of times is a novel technical idea that has not been seen before in wet spinning.

本発明の延伸加速漏斗の寸法は、紡糸速度、紡糸口金の
サイズ、第１凝固液を満した第１凝固浴の条件等によυ
異なるが、大兄１．＋１２＝２００〜４００Ｗ１．１３
＝１００〜３００ｗ＋ｚＡ’４＝５〜１００瓢程度が好
ましい。また出口部の内径ｄ、は０．５〜２、（ｊ＠ｓ
より好ましくは０．８〜１．８　ｍｍである。The dimensions of the draw acceleration funnel of the present invention depend on the spinning speed, the size of the spinneret, the conditions of the first coagulation bath filled with the first coagulation liquid, etc.
It's different, but big brother 1. +12=200~400W1.13
=100~300w+zA'4=about 5~100 gourds is preferable. In addition, the inner diameter d of the outlet part is 0.5 to 2, (j@s
More preferably, it is 0.8 to 1.8 mm.

次に糸条ｌＯは第１図に示す自由落下部Ｂに流下される
。そ、して流下される糸条はこの部分でさらに凝固作用
と延伸作用を受ける。Next, the yarn lO is flown down to a free fall section B shown in FIG. The yarn that is then flowed down is further subjected to coagulation and stretching at this portion.

第１図においてＣ１およびＣ２は液体噴射器である。そ
の液体噴射器は自由落下部Ｂの中間に設けられるが、そ
の設置個数は１個以上である。通常、紡速１０００〜１
５００−ｍ／分では１〜２個設けるのが適当である。そ
して液体噴射器には第２凝固液が供給され前記紡糸漏斗
より流下してくる第１凝固液と糸条とに向けて噴射され
併合流され、流下糸条を減速せしめ、かつ凝固せしめる
。In FIG. 1, C1 and C2 are liquid injectors. The liquid ejector is installed in the middle of the free fall section B, and the number of installed liquid ejectors is one or more. Usually spinning speed 1000~1
At 500 m/min, it is appropriate to provide one or two. A second coagulating liquid is supplied to the liquid injector and is injected toward the first coagulating liquid and the threads flowing down from the spinning funnel so that they merge together, slowing down the falling threads, and coagulating them.

第６図は液体噴射器Ｃの縦断面図である。１１は中空形
状の内側ガイド部材であシ、同じく中空形状の外側ケー
シング部材１２と組合されている。FIG. 6 is a longitudinal sectional view of the liquid injector C. Reference numeral 11 designates a hollow inner guide member, which is combined with a hollow outer casing member 12.

１３が両者を組合せるネジ部である。内側ガイド部材１
１の上部は漏斗状に形成されて番シ、その上方より流下
してくる第１凝固液と糸条１０とを容易に受入れ通過す
るように構成されている。Reference numeral 13 indicates a threaded portion for assembling the two. Inner guide member 1
The upper part of the thread 10 is formed into a funnel shape and is configured to easily receive and pass the first coagulating liquid and the yarn 10 flowing down from above.

１４は第２凝固液の供給口であり、供給された第２凝固
液は液室１５に満され、液噴射口１６より薄い水成膜１
７の形で噴射される。このような液体噴射器の作用効果
は、流下する第１凝固液と糸条に第２凝固液を噴射し併
合流とするととにより、糸条の凝固を促進させながら流
下糸条すなわち第１凝固液と糸条の流下速度を減速させ
ることにある。このように作用させることによって、糸
条８引取点Ｆで引取ることができる。14 is a supply port for the second coagulating liquid, and the supplied second coagulating liquid fills the liquid chamber 15 and forms a water film 1 thinner than the liquid injection port 16.
It is sprayed in the form of 7. The effect of such a liquid injector is that the flowing first coagulating liquid and the second coagulating liquid are injected onto the yarn to form a merging flow, thereby promoting coagulation of the yarn while reducing the falling yarn, that is, the first coagulating liquid. The purpose is to slow down the flow rate of liquid and yarn. By acting in this way, the yarn 8 can be taken off at the take-off point F.

液体噴射器の形状、寸法については紡糸条件により異な
るが、原理的には凝固液と共に流下してぐる糸条の周囲
に液体を集中的に均一に噴射衝突せしめるためのもので
あれば通常公知の如何なるものでもよい。The shape and dimensions of the liquid injector vary depending on the spinning conditions, but in principle, any known liquid injector can be used as long as it flows down together with the coagulating liquid and uniformly injects the liquid around the spinning thread. It can be anything.

第７図は気体噴射器Ｇの縦断面図である。１８は中空形
状の内側ガイド部材であシ、同じく中空形状の外側ケ、
−シング部材１９と組合されている・２０が両者を組合
せるネジ部である。内側ガイド部材１８の上部は漏斗状
に形成されておシ、その上方より流下してくる凝固液と
糸条１ｏとを容易に受入れ通過するように構成されてい
る。２１は圧伸気体の供給口であシ、供給された圧搾気
体は滞留室２２を通り噴射口２３よル噴射される。FIG. 7 is a longitudinal sectional view of the gas injector G. 18 is a hollow inner guide member, and an outer guide member 18 is also hollow.
-It is combined with the sing member 19. ・20 is a threaded portion for assembling both. The upper part of the inner guide member 18 is formed in a funnel shape and is configured to easily receive and pass the coagulating liquid and the thread 1o flowing down from above. Reference numeral 21 is a supply port for compressed gas, and the supplied compressed gas passes through a retention chamber 22 and is injected from an injection port 23.

２４は外側ケーシング部材１９の下部に形成された垂直
管であ夛、気体の流れを均一化し、かっ糸条の揺れを小
さくする作用効果がある。Reference numeral 24 denotes a vertical pipe formed at the lower part of the outer casing member 19, which has the effect of making the flow of gas uniform and reducing the swinging of the thread.

圧搾気体は上方より流下してくる凝固液と糸条とに向け
て噴射される。その作用効果は凝固液が糸条から分離さ
れることである。（実施例では凝固液が糸条から吹飛ば
されている）。その結果、気体噴射器を用いない場合に
生ずる自由落下部下方の糸条の引取点において一部の単
糸が凝固液に引取られて垂れ下がシ、切断して紡糸毛羽
となる現象を防ぐことができる。従って高速度で紡糸し
た糸条を引取点よルその走行方向を変向して引取ること
が可能となった。また水切シの効果により、引取点以降
の再生浴等における浴抵抗を下げることができ、その部
分で毛羽、切糸を発生させない作用効果がある。The compressed gas is injected toward the coagulated liquid and yarn flowing down from above. The effect is that the coagulating liquid is separated from the yarn. (In the example, the coagulating liquid was blown away from the yarn). As a result, this prevents the phenomenon that occurs when a gas injector is not used, in which some of the single yarns are taken up by the coagulation liquid at the yarn take-up point below the free fall, become sagging, and become cut and spun fluff. be able to. Therefore, it has become possible to take off yarn spun at high speed by changing its running direction from the take-up point. Furthermore, due to the effect of the water cutter, the bath resistance in the regeneration bath etc. after the take-up point can be lowered, and this has the effect of preventing fuzz and threads from being generated in that area.

気体噴射器の形状、寸法は適切に選ばれる。例えば銅安
セルローズ繊維の紡糸にこの気体噴射器を適用する場合
には、気体噴射器の内壁に凝固液から析出する醗化銅の
スケールが付着するために流下する糸条が内壁と接触す
ると毛羽、切糸が発生して紡糸の安定性を低下させると
いう問題があ為。このような糸については気体噴射器の
形状、寸法、気体の噴射条件（斥力、流量）を適当に選
ぶことにより糸条と接触することなく安定に紡糸できる
。また逆に、寸法を適当に選ぶことにより糸条な積極的
に気体噴射器の内壁面に接触させ凝固を促進させること
も可能であ）、凝固液中からのスケール析出の影響が小
さい糸ではその方がよい場合もある。したがって紡糸す
る糸の性格に応じて気体噴射器の寸法、形状が選ばれる
。The shape and dimensions of the gas injector are selected appropriately. For example, when this gas injector is applied to spinning ammonium cellulose fiber, copper fluoride scale precipitated from the coagulation liquid adheres to the inner wall of the gas injector, and when the flowing thread comes into contact with the inner wall, fluff occurs. However, there is a problem that cut threads occur and reduce the stability of spinning. Such yarns can be stably spun without coming into contact with the yarn by appropriately selecting the shape and dimensions of the gas injector and the gas injection conditions (repulsion, flow rate). On the other hand, by selecting appropriate dimensions, it is also possible to bring the yarn into active contact with the inner wall surface of the gas injector to promote coagulation). Sometimes it's better. Therefore, the size and shape of the gas injector are selected depending on the characteristics of the yarn to be spun.

本発明で使用される気体噴射器は凝固液と共に流下して
くる流下糸条の周囲に気体を集中的に噴射衝突せしめる
ためのものであれば、通常公知の如何なるものでもよい
。The gas injector used in the present invention may be any commonly known device as long as it is used to intensively inject and collide gas around the falling thread flowing down together with the coagulating liquid.

次に気体噴射器より流下する糸条は、第１図に示す転向
棒２５によりその走向方向を変更されて再生工程に走行
せしめられる。その後の糸処理の方法は特に限定されな
い。例えば特公昭４７−２９９２６号公報に記載されて
いるようなネットプロセスを用いてもよいし、他の方法
でもよい。Next, the yarn flowing down from the gas injector has its running direction changed by a turning rod 25 shown in FIG. 1, and is caused to run in a regeneration process. The method of subsequent thread processing is not particularly limited. For example, a net process as described in Japanese Patent Publication No. 47-29926 may be used, or other methods may be used.

〈実施例〉 以下本発明を実施例をあげて具体的に説明する。<Example> The present invention will be specifically described below with reference to Examples.

実施例１ 常法に従って調整したセルローズ濃度１０チ、アンモニ
ア濃度６．５％％銅濃度３．６％の組成を有する銅安セ
ルローズ紡糸原液を用いて、第１図に示す装置を用いて
紡糸速度を各種変更して繊度７５デニール（単糸１．Ｏ
ｄ）の銅安人絹を紡糸した。主要紡糸条件と得られた製
品糸の物性を従来から公知の紡糸条件およびその製品糸
の物性と比較して第１表に示す。Example 1 Using an ammonium cellulose spinning dope having a cellulose concentration of 10%, an ammonia concentration of 6.5%, and a copper concentration of 3.6%, prepared according to a conventional method, the spinning speed was adjusted using the apparatus shown in FIG. Various changes were made to fineness of 75 denier (single yarn 1.0
The copper Yarn Silk of d) was spun. The main spinning conditions and the physical properties of the product yarn obtained are shown in Table 1 in comparison with conventional spinning conditions and the physical properties of the product yarn.

なお第１表中に示された耐フイブリル化度および屈曲摩
耗強度の測定法を下記に示す。The methods for measuring the degree of fibrillation resistance and bending abrasion strength shown in Table 1 are shown below.

◎耐フイブリル化度測定法 製品糸’ｔ　５　ｖｍの長さに切断し、それよりＩＩ秤
針して、これを濃度１９６（重置１．７０℃の硫酸水溶
液に３０分間浸漬し、その後水洗して硫酸を洗滌し、軽
く脱水して業務用ミキサー（ナショナルＭＳ−１５０８
）で水３００Ｍを注加して５分間回転し、再び軽く水洗
脱水して、後乾燥し、乾燥した糸をスライドグラスに挾
んでほぐし、このことによりフィプリル化した糸のフィ
ブリル化度を、あらかじめ１０段階に区分したフィブ１
】ル化度を表わす標準写真と比較して評点を付けて表わ
す。◎ Fibrillation Resistance Measurement Method The product yarn was cut to a length of 5 vm, then weighed with a II scale, and immersed in a sulfuric acid aqueous solution with a concentration of 196 (superposition 1.70°C) for 30 minutes, and then washed with water. Wash the sulfuric acid, lightly dehydrate, and use a commercial mixer (National MS-1508).
), add 300 M of water, rotate for 5 minutes, wash and dehydrate gently again, dry, and loosen the dried thread by sandwiching it between slide glasses. Fib 1 divided into 10 stages
] Comparison with a standard photograph to express the degree of colorization and a rating is given.

評点では１０が最もフィブリル化度の良い状態を示す。A score of 10 indicates the best degree of fibrillation.

◎屈曲摩耗強度測定法 製品糸を緯糸として製織し、その布を精錬液（浴比１：
１００．スコアロール４００　、２１１／１１゜Ｎａ２
ＣＯ５０，ｓ　Ｉ　／　ｌ水溶液）の入った大型ウィン
ス精錬機にて精錬しく７０℃Ｘ２０分）、湯洗（５０℃
×１０分）、水洗（４０分）を経て、セントル脱水（５
分）した後、ピンテンター乾燥機にて乾燥（８０℃）す
る。乾燥後の一布計量後、樹脂加工液（浴比１：１０１
．パラジウム０．２５チ、ラッテックス１．０％、ベッ
カミン２５チ、ＡＣＸ　１チ水溶液）に６分間浸漬後、
セントル脱水機にて５分間脱水し、ピンテンター乾燥機
にて予備乾燥（ＳＯ℃×３分）、キユアリング（１５０
℃×３分）して布を樹脂加工する。◎Bending abrasion strength measurement method The product yarn is woven as a weft, and the fabric is soaked in a refining solution (bath ratio 1:
100. Score roll 400, 211/11°Na2
Refined in a large wince smelter containing CO50,s I/l aqueous solution) at 70°C for 20 minutes), then washed in hot water at 50°C.
x 10 minutes), washing with water (40 minutes), and centor dehydration (5 minutes).
After drying (80°C) in a pin tenter dryer. After weighing the cloth after drying, add resin processing liquid (bath ratio 1:101)
．． After immersion for 6 minutes in an aqueous solution of 0.25% palladium, 1.0% latex, 25% Beckamine, and 1% ACX,
Dehydrated for 5 minutes in a centor dehydrator, pre-dried in a pin tenter dryer (SO℃ x 3 minutes), and cured (150℃).
℃ x 3 minutes) and process the cloth with resin.

樹脂加工した布から、経２５５ｍ緯３００■の試験布５
枚を切り取ル、ユニバーサル屈曲摩耗試験機（島津製作
所製）にて布が切れるまでのストローク回数を測定する
。（サイクル１３０回／分）、摩耗試験機の荷重条件は
ＪＩＳ−Ｌ−１０９６，Ａ−２に準する。Test cloth 5 with a length of 255 m and a latitude of 300 cm made from resin-treated cloth.
Cut the cloth and measure the number of strokes until the cloth breaks using a universal bending abrasion tester (manufactured by Shimadzu Corporation). (130 cycles/min), and the load conditions of the abrasion tester conformed to JIS-L-1096, A-2.

このようにして測定した布の屈曲摩耗、強度は樹脂加工
条件等により、パッチ開蓋が大きいので実際に操業で紡
糸した糸（特公昭４７−２９９２６公報に開示の技術に
基づく高速紡糸プロセスで得られる糸）を基準糸とし、
その基準糸の屈曲摩耗強度と各条件糸との相対比率で表
現した。数値の大きい程屈曲摩耗強度が高いことを示す
。The bending abrasion and strength of the fabric measured in this way depend on the resin processing conditions, etc., and the patch opening is large. The standard thread is
It was expressed as a relative ratio between the bending abrasion strength of the standard yarn and each condition yarn. The larger the value, the higher the bending abrasion strength.

第１表より明らかなように、可紡性という面においては
紡糸速度１５００〜２０００ｍ／分でも紡糸が可能であ
る。これは湿式紡糸技術分野において従来の常識を破る
驚異的な数値である。As is clear from Table 1, in terms of spinnability, spinning is possible even at a spinning speed of 1500 to 2000 m/min. This is an astonishing value that breaks conventional wisdom in the field of wet spinning technology.

次に第１表より明らかな点は、紡速１０００ψ以上でも
毛羽数の水準は従来法で得られる水準よりも低く、また
強伸度、樹脂加工後の屈曲摩耗強度比、耐フイブリル化
度なども従来法と同程度もしくはそれ以上の糸が得られ
るという点であり、紡糸速度１０００ｍ／分においても
十分に操業化が可能な技術である。Next, it is clear from Table 1 that even at spinning speeds of 1000 ψ or more, the level of fluff is lower than that obtained by conventional methods, and the strength and elongation, bending abrasion strength ratio after resin processing, fibrillation resistance, etc. This method is also capable of producing yarn of the same or higher quality than the conventional method, and is a technology that can be fully operationalized even at a spinning speed of 1000 m/min.

〈発明の効果〉 本発明は前述のように構成されているので、本発明によ
る湿式紡糸法を用いれば、従来の常識を打破する紡糸速
度８００ｍ／分は言うに及ばず１０００ｍ／分以上にお
いても操業化して安定に紡糸が可能で、加えるに従来法
の糸と同程度に毛羽のない、物性面においても従来法と
同程度の糸質を示す糸を得ることができる。<Effects of the Invention> Since the present invention is configured as described above, if the wet spinning method according to the present invention is used, it is possible to achieve a spinning speed of 800 m/min or more, which breaks the conventional wisdom, as well as a spinning speed of 1000 m/min or more. It is possible to operate the method and stably spin the yarn, and in addition, it is possible to obtain a yarn that is as free from fuzz as the yarn produced by the conventional method and exhibits the same quality of yarn as the conventional method in terms of physical properties.

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

第１図は本発明の一実施態様を示す説明図、第２図は従
来法の実施例を示す説明図、第３図は本発明の出口部分
の内側形状をテーパー状に細くした形状の延伸加速漏斗
を示す側断面図、第４図は従来の内部漏斗を示す側断面
図、第５図は漏斗出口からの自由落下部１１ｘと凝固液
速度〜との関係を示したブラシ、第６図は液体噴射器の
縦断面図、第７図は気体噴射器の縦断面図。 Ａ・・・紡糸漏斗、Ｂ・・・自由落下部、Ｃ・・・液体
噴射器、Ｇ・・・気体噴射器、ｌ・・・外部漏斗、２・
・・延伸加速漏斗、３および４・・・固定具、５・・・
凝固液の供給口、６・・・通過孔、７・・・紡糸口金、
８・・・紡糸原液の供給管、９・・・コック、１０・・
・糸条、１１・・・中空形状の内側ガイド部材、１２・
・・中空形状の外側ケーシング部材、１３・・・ネジ部
、１４・・・凝固液の供給口、１５・・・液室、１６・
・・液噴射口、１７・・・水成膜、１８・・・中空形状
の内側ガイド部材、１９・・・中空形状の外側ケーシン
グ部材、２０・・・ネジ部、２１・・・圧搾気体の供給
口、２２・・・滞留室、２３・・・噴射口、２４・・・
垂直管、２５・・・転向棒。Fig. 1 is an explanatory diagram showing an embodiment of the present invention, Fig. 2 is an explanatory diagram showing an example of the conventional method, and Fig. 3 is an explanatory diagram showing an example of the conventional method. Fig. 4 is a side sectional view showing an accelerating funnel, Fig. 4 is a side sectional view showing a conventional internal funnel, Fig. 5 is a brush showing the relationship between the free falling part 11x from the funnel outlet and the coagulating liquid velocity ~, Fig. 6 7 is a longitudinal sectional view of a liquid injector, and FIG. 7 is a longitudinal sectional view of a gas injector. A...Spinning funnel, B...Free falling part, C...Liquid injector, G...Gas injector, l...External funnel, 2.
...Stretch acceleration funnel, 3 and 4... Fixture, 5...
Coagulation liquid supply port, 6... Passing hole, 7... Spinneret,
8... Supply pipe for spinning dope, 9... Cock, 10...
- Thread, 11...Hollow-shaped inner guide member, 12.
...Hollow-shaped outer casing member, 13...Threaded portion, 14...Coagulation liquid supply port, 15...Liquid chamber, 16...
...Liquid injection port, 17...Water film formation, 18...Hollow inner guide member, 19...Hollow outer casing member, 20...Threaded portion, 21...Compressed gas Supply port, 22... Retention chamber, 23... Injection port, 24...
Vertical pipe, 25... Turning rod.

Claims (1)

【特許請求の範囲】 １、湿式紡糸法、特に流下式緊張紡糸法において紡糸漏
斗の出口部をテーパー状に細くした形状の延伸・加速漏
斗を用いて、第１凝固液により未凝固の糸条を出口部で
瞬間的に数十倍延伸させ、その下方に糸条および第１凝
固液の自由落下部を設け、該自由落下部の中間に１個以
上の液体噴射器を設けて前記紡糸漏斗より流下してくる
第１凝固液と糸条とに向けて第２凝固液を噴射し、併合
流として流下糸条を減速し、かつ凝固せしめ、さらに下
方に気体噴射器を設けて上方より流下してくる凝固液と
糸条とに向けて気体を噴射し、凝固液と糸条とを分離し
た後、糸条を引取るようにせしめて紡糸することを特徴
とする高速度湿式紡糸方法。 ２、紡糸原液を紡糸口金より漏斗内に紡糸する紡糸漏斗
装置と、該紡糸漏斗装置の下方に設けられて前記紡糸漏
斗装置から垂下する未凝固の糸条を加速しながら延伸し
て凝固させる延伸凝固加速装置とを含んで成る高速度湿
式紡糸装置において、前記紡糸漏斗装置が紡糸口金と、
該紡糸口金の下方に配置された内側漏斗と、該内側漏斗
を囲むように形成されて内側漏斗に凝固液を供給する外
側漏斗を含んで構成された二重漏斗型の装置であり、前
記内側漏斗の出口部分の内側形状が下方に向けてテーパ
ー状に細く形成されていることを特徴とする高速度湿式
紡糸装置。 ３、前記延伸凝固加速装置が前記紡糸漏斗装置の下方に
引離された位置に設けられて他の凝固液を前記糸条に向
けて噴射する少くとも１個の液体噴射器と、該液体噴射
器の下方に設けられて糸条に気体を噴射する少くとも１
個の気体噴射器とを含んで成ることを特徴とする特許請
求の範囲第２項記載の高速度湿式紡糸装置。[Claims] 1. In a wet spinning method, particularly a falling tension spinning method, a drawing/acceleration funnel having a tapered exit part is used to form an uncoagulated yarn with a first coagulating liquid. is instantaneously stretched several tens of times at the outlet, a free-falling part of the yarn and the first coagulated liquid is provided below the spinning funnel, and one or more liquid injectors are provided in the middle of the free-falling part. The second coagulating liquid is injected towards the first coagulating liquid and the threads that are flowing downward, and as a combined flow, the falling threads are decelerated and coagulated, and a gas injector is provided below to make them flow down from above. A high-speed wet spinning method characterized by injecting gas toward the coagulating liquid and the yarn, separating the coagulating liquid and the yarn, and then pulling the yarn to perform spinning. 2. A spinning funnel device that spins the spinning dope from a spinneret into a funnel, and a stretching system that is installed below the spinning funnel device and that draws and solidifies the uncoagulated yarn hanging from the spinning funnel device while accelerating it. A high-speed wet spinning device comprising a coagulation accelerator, the spinning funnel device comprising a spinneret;
The device is a double funnel type device, which includes an inner funnel disposed below the spinneret, and an outer funnel formed to surround the inner funnel and supply a coagulating liquid to the inner funnel. A high-speed wet spinning device characterized in that the inside shape of the exit portion of the funnel is tapered downward. 3. at least one liquid injector for injecting another coagulating liquid toward the yarn, the drawing coagulation accelerator being installed at a position separated below the spinning funnel device; At least one device installed below the vessel and injecting gas onto the yarn.
3. The high-speed wet spinning apparatus according to claim 2, further comprising: a gas injector.