JP4201098B2 - Spinning guide and spinning guiding method - Google Patents

Spinning guide and spinning guiding method Download PDF

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JP4201098B2
JP4201098B2 JP20600399A JP20600399A JP4201098B2 JP 4201098 B2 JP4201098 B2 JP 4201098B2 JP 20600399 A JP20600399 A JP 20600399A JP 20600399 A JP20600399 A JP 20600399A JP 4201098 B2 JP4201098 B2 JP 4201098B2
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yarn
spinning
guide
width
oil
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JP2001040525A (en
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数馬 小國
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Daicel Corp
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Daicel Chemical Industries Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、紡糸ガイドおよび紡糸ガイディング方法、特にタバコフィルターに使用するようなアセテート繊維の紡糸用の紡糸装置に組み込まれる紡糸ガイドおよび紡糸ガイディング方法に関する。
【0002】
【従来の技術】
繊維用やタバコフィルター用として使用されるアセテート繊維は、近年、品質要求の高まりにより、製造中の切断頻度を少なくする必要性が高まっている。繊維の製造工程において、繊維切断の発生原因は2種類に大別され、紡糸口金からの吐出時に起こるものと回転ロール式巻き取り機での巻き取り時に起こるものがある。回転ロール式巻き取り機における切断頻度は、糸条に付着した繊維油剤の量、油剤の均一塗布性、糸条の集束性などに左右される。
【0003】
紡糸工程においては、回転ロール式巻き取り機での巻き取り前に糸条を集束するが、従来は糸条の集束を、U字型をした紡糸ガイドを用いて、紡糸ガイドの円弧状になった部分を糸条に当てて糸条を押さえつけ、U字部分に沿って糸条を押し込むことにより糸条の幅を調節していた。U字型ガイドは支持体に取り付けて使用するが、このような紡糸ガイディングを行なう時、U字型ガイドの支持体への設置位置により、回転ロール式巻き取り機上での糸条の幅はもちろん、U字型ガイドの上流側にある回転ロール式油剤付与装置上での糸条の幅も変化する。好ましい糸条の幅で紡糸しない時には、回転ロール式巻き取り機上での切断頻度が高くなり、しかも繊維同士の絡みが低下したり、繊維に付着する油剤が多くなるなどの問題も生じる。しかし、摩耗等の理由で紡糸ガイドを交換した際に、手作業により紡糸ガイドを交換するため、紡糸筒数が非常に多いときなど、元の位置にガイドが設置されず回転ロール式巻き取り機や回転ロール式油剤付与装置における糸条の幅が変化する問題があった。
【0004】
また、U字型ガイドの場合、糸条を紡糸ガイドに押しつけて回転ロール式巻き取り機への接触幅を調整するために、図4(b)に示されるように、糸条が「く」の字状に曲げられた状態となるが、この時、糸条がU字ガイドによりしごかれる状態になり、回転ロール式油剤付与装置により繊維に付着した油剤が絞られ、この絞られた繊維油剤がU字ガイドを固定している支持体の最下部から滴下して床上に散乱する問題があった。逆に、滴下を防止しようと油剤が滴下しない所までU字ガイドの設置位置を変更すると、回転ロール式油剤付与装置と回転ロール式巻き取り機への接触幅、即ち糸条の幅が増大し、糸の切断頻度が高くなる問題があった。
【0005】
【発明が解決しようとする課題】
本発明は、繊維の紡糸工程において、糸条に効率よく油剤を付着させ、繊維の切断頻度を少なくするとともに、余分な油剤の滴下を防止できる紡糸ガイド及び紡糸ガイディング方法を提供することを目的とする。
【0006】
【課題を解決するための手段】
本発明は、糸条導入口および導出口を備え、油剤を付着させた繊維の糸条をガイディングする紡糸ガイドであって、糸条導入口に設置され、導入された糸条より遊離した油剤を一時的に貯蔵する凹状部と、該凹状部と糸条導出口とを連結し、導入された糸条の幅を所定の幅に調整して、かつ前記凹状部に貯蔵された油剤を糸条導出口に導く流路とを有する紡糸ガイド、および油剤を付着させた繊維の糸条をガイディングする紡糸ガイディング方法であって、導入された糸条の幅を所定の幅に調整する糸条幅調整手段と、導入された糸条より遊離した油剤を一時的に貯蔵する油剤貯蔵手段と、該油剤を再び糸条に付着させるべく油剤を導く油剤再導入手段を有する紡糸ガイディング方法である。
【0007】
【発明の実施の形態】
以下、本発明の紡糸ガイドおよび紡糸ガイディング方法、紡糸方法をさらに詳細に説明する。図1、2に本発明の実施形態の一例である紡糸ガイドを示す。図1は、紡糸ガイドの構成を示す正面斜視図、図2(a)は図1の紡糸ガイドの上面図、図2(b)は図1の紡糸ガイドの正面図、図2(c)は図1の紡糸ガイドの図2(a)におけるX−X断面図である。
【0008】
図1の紡糸ガイドは、平板状の保持部4と該保持部4より突出した嘴状部5から主として構成され、保持部4と嘴状部5の連結部に糸条導入口2を、嘴状部5の他方の端部に糸条導出口3を備える。糸条導入口2には、導入された糸条より遊離した油剤を一時的に貯蔵するすり鉢状の凹状部A(油剤貯蔵手段)が形成され、嘴状部5の内側には凹状部Aと糸条導出口3を連結する流路C(油剤再導入手段)が形成されている。なお、糸条導出口3の幅Wは3mmとなるよう設定されている(糸条幅調整手段)。また、上記紡糸ガイドを、実際に紡糸装置に設置する際には、糸条導入口2が上部になり、糸条導出口3が糸条導入口2の直下部に位置するよう配置する。
【0009】
一般に紡糸方法は、図3に示されるように行われる。すなわち、紡糸筒11の紡糸口金から紡出される数百本の繊維からなる糸条10を、紡糸筒11の下部に設置された糸条の幅決めガイド11a(糸条幅8mm)を通して集束した後、紡糸機下部ガイド12、回転ロール式油剤付与装置13(油剤付着手段)、紡糸ガイディング手段である紡糸ガイド(図3中では本発明の紡糸ガイド1)に接触させながら回転ロール式巻き取り機14に導く。この工程中において、回転ロール式油剤付与装置13の、上方に位置する紡糸機下部ガイド12、下方に位置する紡糸ガイド1により、糸条10を回転ロール式油剤付与装置13に押し付け、繊維に油剤を付着させている。回転ロール式油剤付与装置13における糸条幅は8mmである。なお、紡糸ガイド1はその保持部を支持体によって保持することにより紡糸装置に取り付けられている。
【0010】
本発明の紡糸方法は、上記紡糸方法において、図1の紡糸ガイド1を用いているが、紡糸ガイド1における糸条の通過状態は次のようになる。すなわち、糸条導入口2より糸条が導入されると、糸条は凹状部Aの最下部より流路Cへ導かれる。この時、凹状部Aと流路Cとの接続部Bと流路Cの内面により糸条がしごかれ、一部の油剤が糸条より遊離する。この遊離した油剤は一時的に凹状部Aに貯蔵され、少量ずつ糸条の移動とともに流路Cへ流れ込んで移動し、流路C中において糸条導出口3に到達するまでに再び糸条に付着する。また、糸条は流路Cにより幅を規制され、最終的に糸条導出口3において所定の幅(3mm)となる。
【0011】
上記のように糸条の幅を規制する工程において遊離した油剤を一時的に凹状部Aに貯蔵し、さらには流路Cに再導入させることにより、油剤が紡糸ガイドの他の部分へ伝い流れることがなく、紡糸ガイドより滴下して下方の床などを汚すこともない。特に、糸条導入口2が上部になり、糸条導出口3が糸条導入口2の直下部に位置するよう配置されることにより、糸条の移動に加えて、重力によっても油剤が自然と流路Cに導かれ、糸条導出口からのみ排出するため、油剤の糸条への再付着が容易になる。
【0012】
また、糸条が流路Cにより幅を規制され、最終的に糸条導出口3において所定の幅(3mm)となることにより、糸条の集束が最適な状態となり、繊維同士の絡みが最適化され、さらに糸条の張力も均一化するため、回転ロール式巻き取り機14上での繊維の切断頻度が低くなる。繊維が切断した場合でも、繊維同士が絡みあい、また、張力が均一なため、切断していない繊維に切断した繊維が随伴して移動し、糸条全体として繊維が切れた状態にはならなくなる。さらに、紡糸ガイド1により糸条の幅を規制することで、紡糸ガイド1の上流側にある回転ロール式油剤付与装置13において繊維に付着する油剤の量が少なくなり、糸条への余分な油剤付着の低減や紡糸ガイドにおいて遊離した油剤があふれて滴下することが防止される。
【0013】
上記実施形態の紡糸ガイドは、導出される糸条の幅が3mmとなるよう糸条導出口3の幅が3mmに設定されているが、導出される糸条の幅は3mmに限定されない。しかし、好ましくは本発明の紡糸ガイドにおいて導出される糸条の幅が2.5〜3.5mmとなるよう設定されるのが良い。導出される糸条の幅を前記範囲とするためには、上記実施形態のように糸条導出口3の幅を前記範囲となるようにしても、あるいは流路Cの最狭部が前記範囲となるようにしてもよい。
【0014】
上記紡糸方法においては、紡糸筒11の下部に設置された糸条の幅決めガイド11aにより糸条の幅を調整し、回転ロール式油剤付与装置13(油剤付着手段)での糸条幅を8mmとなるよう設定しているが、回転ロール式油剤付与装置(油剤付着手段)での糸条幅は8mmに限定されない。本発明において好ましくは、回転ロール式油剤付与装置(油剤付着手段)での糸条幅を8mmとし、本発明の紡糸ガイドから導出される糸条の幅が2.5〜3.5mmとなるよう設定されるのが良い。糸条の幅がこのように設定されることにより、糸条の切断頻度はさらに軽減される。
【0015】
回転ロール式油剤付与装置13における糸条の接触幅と糸条に付着する油剤の量は比例し、回転ロール式油剤付与装置13における糸条の接触幅を8mmとすると、一般に使用する油脂濃度約5%のオイルインウォーター状態のエマルジョンである油剤を用いた場合の、糸条中の水分が25重量%、油脂量が1.3重量%程度となり、繊維切断の起こりにくい油脂濃度となる。
【0016】
上記実施形態の紡糸ガイドは、糸条導入口2が上部になり、糸条導出口3が糸条導入口2の直下部に位置するよう配置されているが、本発明の紡糸ガイドは本発明の作用が阻害されない範囲で、糸条導入口2と糸条導出口3との位置関係は限定されない。しかし、糸条導入口2と糸条導出口3との位置関係が上記実施形態のようであるのが、糸条および油剤の移動の点から好ましく、また後述のように糸条への負荷が軽減される。
【0017】
上記紡糸方法においては、回転ロール式油剤付与装置13の、上方に位置する紡糸機下部ガイド12と下方に位置する紡糸ガイド1により、糸条10を回転ロール式油剤付与装置13に押し付けて糸条に油剤を付着させているため、図4(a)に示すように、側面方向からみると糸条は1直線状にガイディングされず、回転ロール式油剤付与装置と、紡糸機下部ガイド12あるいは紡糸ガイド1との間でそれぞれ垂直方向に対し10°程度傾いた状態となっている。しかし、従来は、紡糸ガイドに糸条を押しつけて糸条の幅を調整していたため、糸条が紡糸ガイドと回転ロール式巻き取り機14との間でも垂直方向に対し傾いた状態となっていたが、本発明の紡糸ガイドは、流路Cにより糸条の幅を調整するため、糸条を垂直に導出することができ、糸条が必要以上にしごかれることがなく、繊維への負荷も少ない。
【0018】
本発明の紡糸ガイドの形状は、例えば凹状部、流路、嘴部、保持部等の形状は、本発明の紡糸ガイドが糸条導入口および糸条導出口を備え、糸条導入口に凹状部と、該凹状部と糸条導出口を連結し、導入された糸条の幅を所定の幅に調整する流路とを有すれば、本発明の作用を阻害しない範囲で特に限定されない。また、本発明の紡糸ガイドの上述のような糸条導出口あるいは流路の最狭部以外のサイズ、例えば凹状部の深さ、直径、流路の長さ等のサイズも本発明の作用を阻害しない範囲で特に限定されない。本発明の紡糸ガイドを形成する材質も本発明の作用を阻害しない範囲で特に限定されず、通常一般に使用される材質を使用することができるが、好ましくはセラミックスや金属が良い。金属を使用する場合は、本発明の紡糸ガイド中を糸条が移動する際に、繊維がこすれて切断することがないよう、特に流路内壁面や、凹状部と流路との接続部の表面仕上げはバフ等を用いて化学研磨するなどし、紡糸ガイド製造時の切削溝や、バリ等を除去する必要がある。なお、金属を使用する場合は、流路内壁面や、凹状部と流路との接続部に、アルミナ等によるコーティング層を形成し、表面を梨地状にしても良い。
【0019】
本発明の紡糸ガイドおよび紡糸ガイディング方法は、アセテート繊維、特にタバコフィルターに使用するアセテート繊維の紡糸に好適に使用できる。
【0020】
以下に試験例および実施例を用いて本発明をより詳細に説明するが、本発明はこれらに限定されるものではない。
試験例
1. 試験方法
セルロースジアセテート28.5重量%、アセトン68.5重量%、酸化チタン0.3重量%、純水2.7重量%を混合溶解して得た紡糸溶液をろ過して脱泡し、実施例1または比較例1の紡糸ガイドを用いた図3に示すような構成の繊維吐出から巻き取りの工程を有する紡糸装置を使用して(比較例1の紡糸ガイドは接触する糸条の幅が3mm(比較例1−1)または5mm(比較例1−2)となるように設置した。)、一辺58μmの三角形の細孔400個を有する紡糸口金(95mmφ:図中11に相当する。)から、吐出量333g/分、紡糸速度400m/分の条件で紡糸し、乾燥ゾーンにおいて一次空気温度105℃及び二次空気温度90℃で乾燥した。この紡糸条件で紡糸を23日間連続して行い、23日間にわたる回転ロール式巻き取り機における糸の切断頻度(回数/トン−製品)と床に滴下した油剤量を比較した。
【0021】
2. 試験結果
上記試験の結果を表1に示す。
【表1】

Figure 0004201098
【0022】
表1の結果より、比較例1の紡糸ガイドを用いた場合と比較して、実施例1の紡糸ガイドを用いた場合は、接触する糸条幅が同じ条件では、糸の切断回数および油剤の滴下が格段に軽減されることがわかる。接触する糸条幅を大きくすれば従来の紡糸ガイドでも油剤の滴下を改善できるが、その場合には糸の絡み状態や付着する油剤量に影響が生じ、糸の切断回数が増加する。
【0023】
【実施例】
実施例1
導出口幅3mmの図1、2に示される形状の紡糸ガイドを実施例1とした。
【0024】
比較例1
従来のU字形状の紡糸ガイドを比較例1とした。
【0025】
【発明の効果】
本発明の紡糸ガイドを使用し、本発明の紡糸ガイディング方法により繊維の紡糸を行うことにより、糸条に効率よく油剤を付着させ、繊維の切断頻度を少なくするとともに、糸条より遊離した油剤の滴下を防止できる。また、繊維同士の絡みを強くして、強靱な繊維を製造することができる。
【図面の簡単な説明】
【図1】 図1は、本発明の実施形態の一例である紡糸ガイドの構成を示す正面斜視図である。
【図2】 図2(a)は図1の紡糸ガイドの上面図、図2(b)は図1の紡糸ガイドの正面図、図2(c)は図1の紡糸ガイドの図2(a)におけるX−X断面図である。
【図3】 図3は、本発明の紡糸ガイディング方法を用いた紡糸装置の油剤付着から巻き取りの工程の一例を示す図である。
【図4】図4(a)は本発明の紡糸ガイドを用いた紡糸装置における繊維吐出から巻き取りの工程での糸条の状態を示す図、図4(b)は従来の紡糸ガイドを用いた紡糸装置における繊維吐出から巻き取りの工程での糸条の状態を示す図である。
【符号の説明】
1 本発明の紡糸ガイド
2 糸条導入口
3 糸条導出口
4 保持部
5 嘴状部
A 凹状部
B 凹状部と流路の接続部
C 流路
10 糸条
15 従来の紡糸ガイド[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a spinning guide and a spinning guiding method, and more particularly, to a spinning guide and a spinning guiding method incorporated in a spinning device for spinning acetate fibers used in tobacco filters.
[0002]
[Prior art]
In recent years, there is an increasing need for reducing the frequency of cutting during production of acetate fibers used for fibers and tobacco filters due to increasing quality requirements. In the fiber manufacturing process, the cause of fiber cutting is roughly divided into two types, one occurring when discharged from the spinneret and the other occurring when winding with a rotary roll type winder. The cutting frequency in the rotary roll winder depends on the amount of the fiber oil adhering to the yarn, the uniform application property of the oil, the convergence of the yarn, and the like.
[0003]
In the spinning process, the yarn is converged before being wound by the rotary roll type winder. Conventionally, the yarn is converged by using a U-shaped spinning guide to form an arc of the spinning guide. The width of the yarn was adjusted by pressing the yarn against the yarn and pressing the yarn along the U-shaped portion. The U-shaped guide is used by attaching it to the support. When performing such spinning guiding, the width of the yarn on the rotary roll winder depends on the installation position of the U-shaped guide on the support. Of course, the width of the yarn on the rotating roll type oil application device on the upstream side of the U-shaped guide also changes. When spinning is not performed with a preferable yarn width, the frequency of cutting on a rotary roll type winder increases, and there are also problems such as a decrease in entanglement between fibers and an increase in the amount of oil agent adhering to the fibers. However, when the spinning guide is replaced due to wear or the like, the spinning guide is replaced manually, so when the number of spinning cylinders is very large, the guide is not installed at the original position, and the rotary roll type winder In addition, there is a problem that the width of the yarn in the rotary roll type oil application device changes.
[0004]
Further, in the case of a U-shaped guide, the yarn is “k” as shown in FIG. 4B in order to adjust the contact width to the rotary roll type winder by pressing the yarn against the spinning guide. In this state, the yarn is squeezed by the U-shaped guide, and the oil agent adhering to the fiber is squeezed by the rotary roll type oil agent applying device, and the squeezed fiber There was a problem that the oil agent dropped from the bottom of the support holding the U-shaped guide and scattered on the floor. Conversely, if the installation position of the U-shaped guide is changed to the point where the oil does not drip in order to prevent dripping, the contact width between the rotating roll type oil application device and the rotating roll type winder, that is, the width of the yarn increases. There was a problem that the yarn cutting frequency was high.
[0005]
[Problems to be solved by the invention]
An object of the present invention is to provide a spinning guide and a spinning guiding method capable of efficiently attaching an oil agent to a yarn in a fiber spinning process, reducing the frequency of fiber cutting, and preventing dripping of an excess oil agent. And
[0006]
[Means for Solving the Problems]
The present invention is a spinning guide that has a yarn introduction port and a discharge port and guides a yarn of a fiber to which an oil agent is adhered, and is installed in the yarn introduction port and free from the introduced yarn. A concave portion that temporarily stores the yarn, the concave portion and the yarn outlet port are connected, the width of the introduced yarn is adjusted to a predetermined width, and the oil stored in the concave portion is threaded A spinning guide having a flow path leading to a strip outlet, and a spinning guiding method for guiding a yarn of a fiber to which an oil agent is adhered, and a yarn for adjusting the width of the introduced yarn to a predetermined width A spinning guiding method comprising: a width adjusting means; an oil agent storing means for temporarily storing an oil agent released from the introduced yarn; and an oil agent reintroducing means for guiding the oil agent to reattach the oil agent to the yarn. .
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the spinning guide, spinning guiding method, and spinning method of the present invention will be described in more detail. 1 and 2 show a spinning guide as an example of an embodiment of the present invention. 1 is a front perspective view showing the configuration of the spinning guide, FIG. 2A is a top view of the spinning guide in FIG. 1, FIG. 2B is a front view of the spinning guide in FIG. 1, and FIG. It is XX sectional drawing in Fig.2 (a) of the spinning guide of FIG.
[0008]
The spinning guide of FIG. 1 is mainly composed of a flat holding portion 4 and a hook-like portion 5 protruding from the holding portion 4, and the yarn introducing port 2 is connected to the connecting portion between the holding portion 4 and the hook-like portion 5. A thread outlet 3 is provided at the other end of the shaped part 5. The yarn introduction port 2 is formed with a mortar-shaped concave portion A (oil agent storage means) for temporarily storing the oil released from the introduced yarn. A flow path C (oil reintroducing means) for connecting the yarn outlet 3 is formed. In addition, the width W of the yarn outlet 3 is set to be 3 mm (yarn width adjusting means). Further, when the spinning guide is actually installed in the spinning device, the yarn introduction port 2 is arranged at the upper part and the yarn outlet port 3 is arranged at the lower part of the yarn introduction port 2.
[0009]
In general, the spinning method is performed as shown in FIG. That is, after the yarn 10 consisting of several hundred fibers spun from the spinneret of the spinning cylinder 11 is converged through a yarn width determining guide 11a (yarn width 8 mm) installed at the lower part of the spinning cylinder 11, A spinning roll type winder 14 is brought into contact with a spinning guide (spinning guide 1 according to the present invention in FIG. 3), which is a spinning guide lower guide 12, a rotating roll type oil applying device 13 (oil agent attaching means), and a spinning guide as a spinning guiding means. Lead to. In this process, the yarn 10 is pressed against the rotary roll type oil application device 13 by the spinning guide lower guide 12 located above and the spinning guide 1 located below the rotary roll type oil application device 13, and the oil is applied to the fiber. Is attached. The yarn width in the rotary roll type oil application device 13 is 8 mm. The spinning guide 1 is attached to the spinning device by holding its holding portion with a support.
[0010]
The spinning method of the present invention uses the spinning guide 1 of FIG. 1 in the spinning method described above, and the thread passing state in the spinning guide 1 is as follows. That is, when the yarn is introduced from the yarn introduction port 2, the yarn is guided to the channel C from the lowermost portion of the concave portion A. At this time, the yarn is squeezed by the connection portion B between the concave portion A and the flow channel C and the inner surface of the flow channel C, and a part of the oil is released from the yarn. The released oil agent is temporarily stored in the concave portion A, and gradually flows into the flow path C along with the movement of the yarn, and moves again into the thread before reaching the yarn outlet 3 in the flow path C. Adhere to. Further, the width of the yarn is regulated by the flow path C, and finally becomes a predetermined width (3 mm) at the yarn outlet 3.
[0011]
As described above, the oil agent released in the step of regulating the width of the yarn is temporarily stored in the concave portion A, and further introduced again into the flow path C, so that the oil agent flows to other parts of the spinning guide. And the lower floor or the like is not soiled by dripping from the spinning guide. In particular, by arranging the yarn introduction port 2 at the upper part and the yarn outlet port 3 to be positioned immediately below the yarn introduction port 2, the oil agent is naturally moved by gravity in addition to the movement of the yarn. Since the oil is guided only to the channel C and discharged only from the yarn outlet, the oil can be easily reattached to the yarn.
[0012]
In addition, the width of the yarn is regulated by the flow path C and finally becomes a predetermined width (3 mm) at the yarn outlet port 3, so that the yarn is optimally focused and the entanglement between the fibers is optimum. Furthermore, since the tension of the yarn is made uniform, the frequency of fiber cutting on the rotary roll type winder 14 is reduced. Even when the fibers are cut, the fibers are entangled with each other, and the tension is uniform, so that the cut fibers move along with the uncut fibers, and the fibers are not cut as a whole thread. . Further, by regulating the width of the yarn by the spinning guide 1, the amount of the oil agent adhering to the fiber in the rotary roll type oil agent applying device 13 on the upstream side of the spinning guide 1 is reduced, and excess oil agent to the yarn is obtained. Reduction of adhesion and prevention of dripping and overflowing of free oil in the spinning guide are prevented.
[0013]
In the spinning guide of the above embodiment, the width of the yarn outlet 3 is set to 3 mm so that the width of the derived yarn is 3 mm, but the width of the derived yarn is not limited to 3 mm. However, the width of the yarn led out in the spinning guide of the present invention is preferably set to be 2.5 to 3.5 mm. In order to set the width of the yarn to be led out within the above range, the width of the yarn outlet 3 may be within the above range as in the above embodiment, or the narrowest part of the flow path C may be within the above range. You may make it become.
[0014]
In the above spinning method, the width of the yarn is adjusted by the yarn width determining guide 11a installed at the lower part of the spinning cylinder 11, and the yarn width in the rotary roll type oil application device 13 (oil agent attaching means) is 8 mm. However, the yarn width in the rotary roll type oil application device (oil agent attaching means) is not limited to 8 mm. In the present invention, preferably, the yarn width in the rotary roll type oil agent applying device (oil agent attaching means) is set to 8 mm, and the width of the yarn led out from the spinning guide of the present invention is set to 2.5 to 3.5 mm. It is good to be done. By setting the width of the yarn in this way, the cutting frequency of the yarn is further reduced.
[0015]
The contact width of the yarn in the rotary roll type oil application device 13 is proportional to the amount of oil adhering to the yarn. If the contact width of the yarn in the rotary roll type oil application device 13 is 8 mm, the oil concentration generally used is about In the case of using an oil agent which is an emulsion in a 5% oil-in-water state, the moisture in the yarn is 25% by weight and the amount of fats and oils is about 1.3% by weight.
[0016]
The spinning guide of the above embodiment is arranged so that the yarn introduction port 2 is at the upper part and the yarn outlet port 3 is located immediately below the yarn introduction port 2, but the spinning guide of the present invention is the present invention. The positional relationship between the yarn introduction port 2 and the yarn lead-out port 3 is not limited as long as the function of is not inhibited. However, the positional relationship between the yarn introduction port 2 and the yarn outlet port 3 is as in the above embodiment, which is preferable from the viewpoint of movement of the yarn and the oil agent, and the load on the yarn is reduced as described later. It is reduced.
[0017]
In the spinning method, the yarn 10 is pressed against the rotary roll type oil application device 13 by the spinning guide lower guide 12 and the lower spinning guide 1 of the rotary roll type oil application device 13. As shown in FIG. 4 (a), the thread is not guided in a straight line when viewed from the side, as shown in FIG. 4 (a), and the rotating roll type oil application device and the spinning machine lower guide 12 or It is in a state of being inclined by about 10 ° with respect to the vertical direction with respect to the spinning guide 1. However, conventionally, since the yarn width is adjusted by pressing the yarn against the spinning guide, the yarn is inclined with respect to the vertical direction even between the spinning guide and the rotary roll winder 14. However, since the spinning guide of the present invention adjusts the width of the yarn by the flow path C, the yarn can be led out vertically, and the yarn is not squeezed more than necessary. There are few.
[0018]
As for the shape of the spinning guide of the present invention, for example, the shape of the concave portion, the flow path, the collar portion, the holding portion, etc., the spinning guide of the present invention has a yarn introduction port and a yarn outlet port, and the yarn introduction port has a concave shape. If it has a part and a flow path which connects this concave part and a thread outlet and adjusts the width of the introduced thread to a predetermined width, it will not be limited in particular in the range which does not inhibit the operation of the present invention. The size of the spinning guide of the present invention other than the above-described yarn outlet or the narrowest part of the flow path, for example, the depth of the concave part, the diameter, the length of the flow path, etc., also acts as the present invention. It does not specifically limit in the range which does not inhibit. The material for forming the spinning guide of the present invention is not particularly limited as long as the action of the present invention is not hindered, and generally used materials can be used, but ceramics and metals are preferable. When using a metal, especially when the yarn moves in the spinning guide of the present invention, the inner wall surface of the flow path and the connecting portion between the concave portion and the flow path should not be rubbed and cut. The surface finish must be chemically polished using a buff or the like to remove cutting grooves, burrs, and the like when the spinning guide is manufactured. When metal is used, a coating layer made of alumina or the like may be formed on the inner wall surface of the flow path or the connection portion between the concave portion and the flow path, and the surface may be textured.
[0019]
The spinning guide and spinning guiding method of the present invention can be suitably used for spinning acetate fibers, particularly acetate fibers used in tobacco filters.
[0020]
Hereinafter, the present invention will be described in more detail using test examples and examples, but the present invention is not limited thereto.
Test Example 1 Test Method A spinning solution obtained by mixing and dissolving 28.5% by weight of cellulose diacetate, 68.5% by weight of acetone, 0.3% by weight of titanium oxide, and 2.7% by weight of pure water was filtered and defoamed. 3 using a spinning device having a structure as shown in FIG. 3 using the spinning guide of Example 1 or Comparative Example 1 (the spinning guide of Comparative Example 1 is the width of the contacting yarn) Is set to be 3 mm (Comparative Example 1-1) or 5 mm (Comparative Example 1-2).) A spinneret (95 mmφ: corresponding to 11 in the figure) having 400 triangular pores with a side of 58 μm. ) To a discharge rate of 333 g / min and a spinning speed of 400 m / min, and dried in a drying zone at a primary air temperature of 105 ° C. and a secondary air temperature of 90 ° C. Spinning was carried out continuously for 23 days under these spinning conditions, and the yarn cutting frequency (number of times / ton-product) in a rotary roll winder over 23 days was compared with the amount of oil dropped onto the floor.
[0021]
2. Test results Table 1 shows the results of the above tests.
[Table 1]
Figure 0004201098
[0022]
From the results shown in Table 1, when the spinning guide of Example 1 is used as compared with the case of using the spinning guide of Comparative Example 1, the number of yarn cuttings and the dripping of the oil agent are performed under the same conditions of the contacting yarn width. It can be seen that is significantly reduced. Increasing the width of the contacting yarn can improve the dripping of the oil even with the conventional spinning guide. However, in this case, the entanglement state of the yarn and the amount of the adhering oil are affected, and the number of times the yarn is cut increases.
[0023]
【Example】
Example 1
A spinning guide having the shape shown in FIGS.
[0024]
Comparative Example 1
A conventional U-shaped spinning guide was defined as Comparative Example 1.
[0025]
【The invention's effect】
By using the spinning guide of the present invention and spinning the fiber by the spinning guiding method of the present invention, the oil agent is efficiently attached to the yarn, the frequency of fiber cutting is reduced, and the oil agent released from the yarn is released. Can be prevented from dripping. Moreover, the tough fiber can be manufactured by strengthening the entanglement between the fibers.
[Brief description of the drawings]
FIG. 1 is a front perspective view showing a configuration of a spinning guide as an example of an embodiment of the present invention.
2A is a top view of the spinning guide of FIG. 1, FIG. 2B is a front view of the spinning guide of FIG. 1, and FIG. 2C is FIG. 2A of the spinning guide of FIG. It is XX sectional drawing in).
FIG. 3 is a diagram showing an example of steps from oil agent adhesion to winding of a spinning device using the spinning guiding method of the present invention.
FIG. 4 (a) is a view showing the state of a yarn in a fiber discharging to winding process in a spinning device using the spinning guide of the present invention, and FIG. 4 (b) is a drawing using a conventional spinning guide. It is a figure which shows the state of the thread | yarn in the process of the fiber discharge to the winding-up in the spinning apparatus which was used.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Spinning guide 2 Yarn introduction port 3 Yarn outlet port 4 Holding part 5 Reed part A Recessed part B Concave part and flow path connection part C Channel 10 Yarn 15 Conventional spinning guide

Claims (3)

糸条導入口および糸条導出口を備え、油剤を付着させた繊維の糸条をガイディングするタバコフィルターに使用するアセテート繊維用の紡糸ガイドであって、糸条導入口に設置され、導入された糸条より遊離した油剤を一時的に貯蔵する凹状部と、該凹状部と糸条導出口とを連結し、導入された糸条の幅を所定の幅に調整して、かつ前記凹状部に貯蔵された油剤を糸条導出口に導く矩形型の流路と嘴型の流路出口とを有することを特徴とするタバコフィルターに使用するアセテート繊維用の紡糸ガイド A spinning guide for acetate fibers used in tobacco filters for guiding fiber yarns to which an oil agent is adhered, having a yarn introduction port and a yarn outlet port, installed at the yarn introduction port and introduced A concave portion for temporarily storing the oil released from the yarn, and connecting the concave portion and the yarn outlet, adjusting the width of the introduced yarn to a predetermined width, and the concave portion A spinning guide for acetate fibers used in a tobacco filter, characterized by having a rectangular channel for guiding the oil stored in the yarn to the yarn outlet and a hook- shaped channel outlet . 前記糸条導出口あるいは前記流路の最狭部が幅2.5〜3.5mmとなるよう設定されていることを特徴とする請求項1記載のタバコフィルターに使用するアセテート繊維用の紡糸ガイド2. A spinning guide for acetate fibers used in a tobacco filter according to claim 1, wherein the narrowest portion of the yarn outlet or the flow path is set to have a width of 2.5 to 3.5 mm. . 前記糸条導入口が上部に、前記糸条導出口が糸条導入口の概ね直下部に配置されていることを特徴とする請求項1または2記載のタバコフィルターに使用するアセテート繊維用の紡糸ガイド The spinning for acetate fiber used in a tobacco filter according to claim 1 or 2, wherein the yarn introduction port is disposed at an upper portion, and the yarn outlet port is disposed substantially immediately below the yarn introduction port. Guide .
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