JP3966027B2 - Chemical fiber nozzle - Google Patents
Chemical fiber nozzle Download PDFInfo
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- JP3966027B2 JP3966027B2 JP2002063507A JP2002063507A JP3966027B2 JP 3966027 B2 JP3966027 B2 JP 3966027B2 JP 2002063507 A JP2002063507 A JP 2002063507A JP 2002063507 A JP2002063507 A JP 2002063507A JP 3966027 B2 JP3966027 B2 JP 3966027B2
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Description
【0001】
【発明の属する技術分野】
本発明は、化合繊用ノズルに関する。さらに詳しくは、化合繊糸条を混繊加工するに最適な化合繊用ノズルに関する。
【0002】
【従来の技術】
従来、糸条導入管と圧空噴射孔から成るノズルを用い、流体を噴射をすることにより単繊維相互間に交絡を付与する技術があり、化合繊産業で広く利用され、原糸あるいは加工糸の製造工程では製糸性を向上させたり、製編織の工程通過性、作業性を向上させることを目的として使用されている。その糸形態は、ループやたるみを極力少なくしつつ、かつ十分な交絡を付与するという糸条の集束を目的とした交絡タイプ用ノズル、あるいは嵩高性を付与することを目的としたループタイプ用ノズルが提案されている。
【0003】
しかし、後者のノズルにおいも十分なループやたるみを付与できなかったり、あるいは芯鞘構造の多糸条複合糸の場合、芯鞘間に糸長差を十分に付与することができないということがあった。
【0004】
それらを改善すべく、特開平3−180536号公報においては、糸道孔をテーパー状にした流体噴射孔角度を糸条出口方向に傾けたノズルが提案されている。このノズルを用いることにより、糸条に集束性のあるループを付与できるものの、そのループ数は充分満足できる個数でなく、織物にした際にループヤーンの風合いを必ずしも十分発揮できるとはいえなかった。
【0005】
一方、ループ形成を主目的とした流体乱流ノズルが幅広く用いられているが、このノズルでは芯鞘間に十分な糸長差を付与できるものの、生産コスト高となる大きな問題がある。
【0006】
【発明が解決しようとする課題】
本発明は、前述した問題を解消し、化合繊糸条の混繊加工に最適なノズルを提供することを目的とするものである。
【0007】
【課題を解決するための手段】
本発明の化合繊用ノズルは、前記の課題を解決するために、以下の構成を有する。
【0008】
すなわち、糸条導入口、糸条排出口および該糸条導入口と該糸条排出口の間に流体噴射孔を有し、該糸条導入口から導入されて走行する化合繊糸条に該流体噴射孔から流体を該化合繊糸条に噴射し、該化合繊糸条を混繊するノズルにおいて、該糸条導入口と該流体噴射孔の間に、導入される糸条ごとに糸条を分ける分離体を有し、該糸条導入口から該糸条排出口まで化合繊糸条を通す糸条導入管の内径Aと該分離体の内径Bで表される径比A/Bが、1.1≦A/B≦5、該分離体と該流体噴射孔の間隔aが0.5mm以上8.5mm以下、かつ、該糸条導入口における中心線lyと該流体噴射孔の中心線liのなす流体噴射角度αが30°以上110°以下、であることを特徴とする化合繊用ノズルである。
【0009】
【発明の実施の形態】
化合繊糸条とは、合成繊維フィラメントおよび半合成繊維フィラメントを含む糸のことをいう。
【0010】
本発明のノズルは、化合繊糸条を混繊するために用いるもので、複数の糸条をノズルに導入することができる。
【0011】
流体噴射は、空気圧を糸条に付与し、糸条を交絡させるものである。その噴射圧は0.3〜0.5MPaが好ましい。
【0012】
本発明のノズルにおいて糸条を分ける分離体は、複数の糸条が合流する点と流体噴射孔までの距離を規制するために、合流点まで各糸条を分離させる機能を有する。
【0013】
従来より高オーバーフィード率で行われる混繊加工においては、流体処理部で鞘側に生じた糸長差による弛みが芯側にまで波及してノズル導入口で糸全体が弛み、混繊加工が不安定になるという問題があった。
【0014】
これに対し、本発明のノズルにおいては、芯側と鞘側を分ける分離体の作用により、芯側への弛みの波及が抑制されて混繊加工が安定して行うことができ、高オーバーフィード率での混繊加工も安定して行うことができる。
【0015】
図1は、本発明の化合繊用ノズルの一例を示す斜視図である。
【0016】
図1に表したように、本発明の化合繊用ノズルは、糸条導入口Y、糸条排出口Ye、流体噴射孔Iを有する。図1において実線で表した2つの糸条は、図1の右側の糸条導入口Yからノズルに導入され、流体噴射孔Iから噴射される流体によって混繊されて1つの糸条となり、図1の左側の糸条排出口Yeからノズルの外に排出される。糸条導入口Yと流体噴射孔Iの間には、分離体Cが設けられており、2つの糸条が導入口から導入されて合流するまでの距離を分離体Cが規制する。
【0017】
図2および図3は、図1のP−P面を含む平面でノズルを切断し、流体噴射孔I方向をみたときの断面図である。Y1およびY2は糸条導入部、Ytは流体処理部、Yeは糸条出口、Iは流体噴射孔、Cは分離体を表す。
【0018】
本発明においては、高オーバーフィード率下においても糸条を安定して混繊させるために、導入される糸条を流体噴射孔の直前まで各糸条を分離する。糸道部の内径Aと分離体の内径Bで表される径比A/Bは、糸通しなどの作業性をよくするために1.1以上であることが好ましく、また糸条導入部付近の糸道が大きくなりすぎると鞘側からの弛みが芯側へ波及しやすく加工が不安定になるので5以下であることが好ましい。
【0019】
一般にマルチフィラメント糸の各単繊維が開繊した状態で、何らかの衝撃を与えてやると単繊維は相互に絡まり、その結果、ループやたるみが形成されて糸条に嵩高さが付与される。その衝撃として利用し得るものは、例えばタスランノズルの場合は、ノズル出口部での急激な糸条の方向変更が引き起こす排出流による繊維の攪乱、または攪乱の効果を増大させるように衝突物を設けることが利用されている。しかしながら、これらだけでは糸条に均一に嵩高を付与するのには不十分である。
【0020】
これに対し、本発明は、マルチフィラメント糸条に直接噴流をぶつけることで糸条の開繊を促進させて混繊するものである。
【0021】
図3において、aは分離体Cと流体噴射孔Iの間の距離を表す。本発明のノズルにおいては、分離体と流体噴射孔の距離aを、ネップ(結び目)状の絡まりが形成されないように抑止する観点から0.5mm以上とすることが好ましく、また鞘側に生じる糸長差による弛みが芯側に波及してノズル入口での糸全体の弛みを抑止する観点から10mm以下とすることが好ましい。さらに好ましくは、距離aを1mm以上5mm以下とする。
【0022】
図4は、図1のQ−Q面を含む平面でノズルを切断したときの断面図である。
【0023】
噴射流を効果的に糸条に作用させ、適度な交絡を糸条に付与し、ループの形態堅牢性を高めるために、図4に示すように糸条導入部の中心線lYと流体噴射孔の中心線liのなす流体噴射角度αを30°以上110°以下とすることが好ましい。より好ましくは45°以上90°以下である。
【0024】
なお、ノズルの糸道方向に沿って糸条導入口から糸条排出口まで溝状のスリットをノズル外壁から糸条導入管へ設けておく(溝状のスリットを切っておく)ことは、糸条をノズルに導入するときに糸条の端部を糸条導入口から入れて糸条排出口まで通すという作業を要さずに、糸条をノズルの糸条導入管に仕掛け易くなるので、好ましい態様である。
【0025】
【実施例】
以下、実施例を挙げて本発明をさらに具体的に説明する。
【0026】
なお、実施例において得られた混繊糸の加工安定度、開繊均一度、および交絡度は、次に示す方法で測定したものである。
[加工安定度]
1時間の加工を3回行い、各加工において糸切れが何回発生したかを記録する。この3回の各加工においていずれも糸切れせず計3時間とも加工可能であったものをAとする。一方、いずれかの加工時間において1回以上糸切れしたものをBとした。
[開繊均一度]
糸条の任意の部分で5cmのサンプルを5箇所採取し、その開繊状態を目視で観察する。単繊維が10本以上まとまっている箇所または糸条全体がネップ状になっている箇所を記録し、その合計を開繊均一度の評価とする。単繊維が10本以上まとまっている箇所およびネップ状の箇所の合計が1個以下のものをAとし、2個以上4個以下のものをBとし、5個以上のものをCとする。
[交絡度]
糸条に2g/dの荷重を1分間かけておき、その後その加重を外して1分間フリーの状態で放置する。こうした緊張−弛緩の操作を5回繰り返した後、単位長さ当たりの交絡数を測定し、3回測定した平均値により評価した。交絡数が70個/m以上の場合をAとし、40個/m以上70個/m未満をBとし、40個/m未満をCとする。
【0027】
以下に示す実施例、比較例においては、供給糸として、芯糸にナイロン6糸(75デニール、36フィラメント)、鞘糸にナイロン6糸(75デニール、36フィラメント)を用い、流体噴射加工を行なった。
【0028】
流体処理条件は、芯糸のオーバーフィード率4%、鞘糸のオーバーフィード率19%、圧力4kg/cm2、糸速300m/minに設定した。
[実施例1,2]
糸道部の幅Aと分離体の幅Bの幅比をそれぞれ、3(実施例1)、1.5(実施例2)とし、距離aを3.5mm、流体噴射角度を80度とした。実施例1,2ともノズル入口での弛みもなく加工安定性は良好で、得られたループも均一性の高いものであった。
【0029】
実施例の結果を表1に示す。
[実施例3,4]
幅比を1.5として、距離aをそれぞれ1mm(実施例3)、9mm(実施例4)とし、流体噴射角度を80度とした。実施例3,4ともそれぞれの単繊維がループを形成して、全体として均一なループを有するものであった。
【0030】
結果を併せて表1に示す。
[実施例5,6]
幅比を1.5とし、距離aを3.5mmとし、流体噴射角度をそれぞれ100度(実施例5)、45度(実施例6)とした。実施例5は交絡性が高く、ループも均一に形成した。実施例6はノズル入口での糸条吸引力が高く、加工安定性は良好であった。
【0031】
結果を併せて表1に示す。
[実施例7,8]
幅比を1.2(実施例7)、4.5(実施例8)とし、距離aを3.5mm、流体噴射角度を80度とした。実施例7,8共にループ均一性、交絡性に優れたものであった。
【0032】
【表1】
【0033】
[比較例1,2]
幅比を1(比較例1)、6(比較例2)とし、距離aを3.5mm、流体噴射角度を80度とした。比較例1は、ノズル入口で糸弛みが発生して加工不能であった。比較例2はノズル入口で糸条が不安定になり、交絡性は劣るものであった。
【0034】
結果を表2に示す。
[比較例3]幅比を1、距離aを0mm(比較例3)、流体噴射角度を80度とした。比較例3はノズル入口で糸条弛みが発生し、加工が不安定であった。また、ネップ状のループが散在し、均一性にも劣るものであった。
【0035】
結果を併せて表2に示す。
[比較例4,5]幅比を1.5、距離aを3.5mm、噴射角度をそれぞれ150度(比較例4)、20度(比較例5)とした。比較例4はノズル入口で糸条弛みが発生し、加工が困難であった。比較例5は開繊不足により、交絡性に劣るものであった。
【0036】
結果を併せて表2に示す。
【0037】
【表2】
【0038】
【発明の効果】
本発明のノズルによれば、ノズル導入口における鞘糸の弛みが芯糸に波及するのを抑止できるので、従来技術の欠点であった鞘糸の巻付き群から芯糸が露出する目向きという問題がなくなる。
【0039】
また、従来技術においては糸長差の大きい複合糸では解舒性の悪化など工程通過性に課題があったが、本発明のノズルによれば均一性に優れた嵩高糸が得られるので解舒性が大幅に改善される。
【0040】
さらにまた、芯鞘間のオーバーフィード率を従来の0〜5%に比べ、0〜15%と広範囲に設定することができる。このため、従来高価なノズルでのみ加工可能であった高オーバーフィード域の混繊加工も比較的安価なノズルで加工できるので、コストダウンが大きいという効果を得られた。
【0041】
本発明のノズルにより得られる糸は、鞘糸が芯糸に巻き付く糸構造となるため、嵩高性に優れた複合糸となり、それを布帛にするとふかつきのある嵩高性に優れたものとなる。
【0042】
また、交絡部の結束が強固で多く付与できるので、ループの形態堅牢度が優れた糸となる。
【図面の簡単な説明】
【図1】本発明の化合繊用ノズルの一例を示す斜視図である。
【図2】図1のP−P面を含む平面でノズルを切断し、流体噴射孔I方向をみたときの断面図である。
【図3】図1のP−P面を含む平面でノズルを切断し、流体噴射孔I方向をみたときの断面図である。
【図4】図1のQ−Q面を含む平面でノズルを切断したときの断面図である。
【符号の説明】
Y1、Y2:糸条導入部
Yt:流体処理部
Ye:糸条排出口
I:流体噴射孔
A:糸道部の幅
B:分離体の幅
C:分離体
a:分離給糸体の最後部と流体噴射孔の先端の間の距離
ly:糸条導入部における中心線
li:流体噴射孔の中心線
α:流体噴射角度[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a synthetic fiber nozzle. More specifically, the present invention relates to a synthetic fiber nozzle that is optimal for blending synthetic fiber yarns.
[0002]
[Prior art]
Conventionally, there has been a technology for confounding single fibers by injecting a fluid using a nozzle consisting of a yarn introduction pipe and a compressed air injection hole, which is widely used in the chemical fiber industry, In the manufacturing process, it is used for the purpose of improving the yarn-making property and improving the processability and workability of knitting and weaving. The yarn form is entangled type nozzles for the purpose of concentrating yarns to give sufficient entanglement while minimizing loops and sagging, or loop type nozzles for the purpose of providing bulkiness. Has been proposed.
[0003]
However, the latter nozzle may not provide sufficient loops or sagging, or in the case of a multi-thread composite yarn having a core-sheath structure, it may not be possible to sufficiently provide a yarn length difference between the core-sheaths. It was.
[0004]
In order to improve them, Japanese Patent Application Laid-Open No. 3-180536 has proposed a nozzle in which the thread ejection hole is tapered and the fluid injection hole angle is inclined toward the yarn exit direction. By using this nozzle, it is possible to give a loop having a convergence property to the yarn, but the number of loops is not a satisfactory number, and it cannot be said that the texture of the loop yarn can be sufficiently exhibited when it is made into a woven fabric. .
[0005]
On the other hand, fluid turbulent flow nozzles mainly intended for loop formation are widely used. However, although this nozzle can provide a sufficient yarn length difference between the core and the sheath, there is a big problem that the production cost is high.
[0006]
[Problems to be solved by the invention]
An object of the present invention is to solve the above-described problems and to provide an optimum nozzle for compound fiber processing of synthetic fiber yarns.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, the synthetic fiber nozzle of the present invention has the following configuration.
[0008]
That is, the yarn introduction port, the yarn discharge port, and the synthetic fiber yarn that has a fluid injection hole between the yarn introduction port and the yarn discharge port and is introduced from the yarn introduction port and travels. In a nozzle for injecting a fluid from the fluid injection hole to the synthetic fiber yarn and mixing the synthetic fiber yarn, the yarn is introduced for each yarn to be introduced between the yarn introduction port and the fluid injection hole. have a separator separating the, the diameter ratio a / B which is represented by the inner diameter B of the inner diameter a and the separation of the yarn introducing pipes through the synthetic yarn of the yarn strip inlet to thread Article outlet 1.1 ≦ A / B ≦ 5, the distance a between the separator and the fluid injection hole is 0.5 mm or more and 8.5 mm or less, and the center line ly at the yarn introduction port and the center of the fluid injection hole The synthetic fiber nozzle is characterized in that the fluid ejection angle α formed by the line li is 30 ° or more and 110 ° or less .
[0009]
DETAILED DESCRIPTION OF THE INVENTION
The compound fiber yarn refers to a yarn containing synthetic fiber filaments and semi-synthetic fiber filaments.
[0010]
The nozzle of the present invention is used for blending synthetic fiber yarns, and a plurality of yarns can be introduced into the nozzle.
[0011]
In the fluid ejection, air pressure is applied to the yarn and the yarn is entangled. The injection pressure is preferably 0.3 to 0.5 MPa.
[0012]
In the nozzle of the present invention, the separator that separates the yarns has a function of separating the yarns to the joining point in order to regulate the distance between the joining point of the plurality of yarns and the fluid injection hole.
[0013]
In mixed fiber processing performed at a higher overfeed rate than before, loosening due to the yarn length difference that occurred on the sheath side in the fluid treatment part spreads to the core side, and the entire thread loosens at the nozzle inlet, and mixed fiber processing is performed. There was a problem of becoming unstable.
[0014]
On the other hand, in the nozzle of the present invention, due to the action of the separating body that separates the core side and the sheath side, the spread of the slack to the core side can be suppressed, and the mixed fiber processing can be performed stably, and the high overfeed The fiber mixing at a high rate can be performed stably.
[0015]
FIG. 1 is a perspective view showing an example of a synthetic fiber nozzle of the present invention.
[0016]
As shown in FIG. 1, the synthetic fiber nozzle of the present invention has a yarn introduction port Y, a yarn discharge port Ye, and a fluid ejection hole I. The two yarns represented by solid lines in FIG. 1 are introduced into the nozzle from the yarn introduction port Y on the right side of FIG. 1 and mixed into one yarn by the fluid ejected from the fluid ejection hole I. 1 is discharged from the left yarn discharge port Ye to the outside of the nozzle. A separation body C is provided between the yarn introduction port Y and the fluid injection hole I, and the separation body C regulates the distance from the introduction of the two yarns through the introduction port to the joining.
[0017]
2 and 3 are cross-sectional views when the nozzle is cut along a plane including the PP plane of FIG. Y1 and Y2 are yarn introduction portions, Yt is a fluid processing portion, Ye is a yarn outlet, I is a fluid ejection hole, and C is a separator.
[0018]
In the present invention, in order to stably mix the yarn even under a high overfeed rate, the yarn to be introduced is separated up to just before the fluid injection hole. The diameter ratio A / B expressed by the inner diameter A of the yarn path portion and the inner diameter B of the separator is preferably 1.1 or more in order to improve workability such as threading, and in the vicinity of the yarn introducing portion. If the yarn path becomes too large, the slack from the sheath side tends to spread to the core side, and the processing becomes unstable.
[0019]
Generally, when an impact is applied in a state where each single fiber of the multifilament yarn is opened, the single fibers are entangled with each other, and as a result, a loop and a slack are formed, and the yarn is given bulkiness. For example, in the case of a Taslan nozzle, the impact can be utilized by providing a colliding object so as to increase the effect of the disturbance of the fiber caused by the discharge flow caused by the sudden change of the direction of the yarn at the nozzle outlet, or the effect of the disturbance. Is being used. However, these alone are insufficient to impart a uniform bulk to the yarn.
[0020]
On the other hand, the present invention promotes the opening of the yarn by hitting the jet directly against the multifilament yarn and mixes the yarn.
[0021]
In FIG. 3, a represents the distance between the separator C and the fluid ejection hole I. In the nozzle of the present invention, the distance a between the separator and the fluid injection hole is preferably 0.5 mm or more from the viewpoint of suppressing the formation of a tie (knot) -like entanglement, and the yarn generated on the sheath side From the viewpoint of suppressing slack of the entire yarn at the nozzle inlet due to slack due to the difference in length, it is preferable to set it to 10 mm or less. More preferably, the distance a is 1 mm or more and 5 mm or less.
[0022]
FIG. 4 is a cross-sectional view of the nozzle cut along a plane including the QQ plane of FIG.
[0023]
In order to effectively cause the jet flow to act on the yarn, to impart appropriate entanglement to the yarn, and to improve the robustness of the shape of the loop, as shown in FIG. The fluid ejection angle α formed by the center line li is preferably 30 ° or more and 110 ° or less. More preferably, it is 45 ° or more and 90 ° or less.
[0024]
It should be noted that providing a groove-like slit from the outer wall of the nozzle to the yarn introduction tube along the direction of the yarn path of the nozzle (cutting the groove-like slit) Since it is easy to put the yarn on the yarn introduction pipe of the nozzle without requiring the work of inserting the end of the yarn from the yarn introduction port and passing it to the yarn discharge port when introducing the yarn into the nozzle, This is a preferred embodiment.
[0025]
【Example】
Hereinafter, the present invention will be described more specifically with reference to examples.
[0026]
The processing stability, spread uniformity, and entanglement degree of the blended yarns obtained in the examples were measured by the following methods.
[Processing stability]
One hour of machining is performed three times and the number of yarn breaks occurring in each machining is recorded. In each of these three processes, the thread was not broken and could be processed for a total of 3 hours. On the other hand, B was one that was broken one or more times in any processing time.
[Fabrication uniformity]
Five 5 cm samples are collected at an arbitrary part of the yarn, and the opened state is visually observed. A location where 10 or more single fibers are gathered or a location where the entire yarn is nep-shaped is recorded, and the total is taken as an evaluation of the spread uniformity. A total of 10 or less single fibers and a total number of nep-shaped sites are 1 or less, B is 2 or more and 4 or less, and C is 5 or more.
[Degree of confounding]
A 2 g / d load is applied to the yarn for 1 minute, then the load is removed and the yarn is left free for 1 minute. After repeating this tension-relaxation operation 5 times, the number of entanglements per unit length was measured and evaluated by the average value measured 3 times. The case where the number of confounding is 70 pieces / m or more is designated as A, 40 pieces / m or more and less than 70 pieces / m is designated as B, and less than 40 pieces / m is designated as C.
[0027]
In the following examples and comparative examples, as the supply yarn, nylon 6 yarn (75 denier, 36 filament) is used as the core yarn, and nylon 6 yarn (75 denier, 36 filament) is used as the sheath yarn, and fluid injection processing is performed. It was.
[0028]
The fluid treatment conditions were set such that the overfeed rate of the core yarn was 4%, the overfeed rate of the sheath yarn was 19%, the pressure was 4 kg / cm 2 , and the yarn speed was 300 m / min.
[Examples 1 and 2]
The width ratio between the width A of the yarn path portion and the width B of the separator is 3 (Example 1) and 1.5 (Example 2), the distance a is 3.5 mm, and the fluid ejection angle is 80 degrees. . In both Examples 1 and 2, there was no slack at the nozzle inlet, the processing stability was good, and the obtained loops were also highly uniform.
[0029]
The results of the examples are shown in Table 1.
[Examples 3 and 4]
The width ratio was 1.5, the distances a were 1 mm (Example 3) and 9 mm (Example 4), respectively, and the fluid ejection angle was 80 degrees. In each of Examples 3 and 4, each single fiber formed a loop and had a uniform loop as a whole.
[0030]
The results are also shown in Table 1.
[Examples 5 and 6]
The width ratio was 1.5, the distance a was 3.5 mm, and the fluid ejection angles were 100 degrees (Example 5) and 45 degrees (Example 6), respectively. Example 5 was highly entangled, and the loops were formed uniformly. In Example 6, the yarn suction force at the nozzle inlet was high, and the processing stability was good.
[0031]
The results are also shown in Table 1.
[Examples 7 and 8]
The width ratio was 1.2 (Example 7) and 4.5 (Example 8), the distance a was 3.5 mm, and the fluid ejection angle was 80 degrees. Examples 7 and 8 were excellent in loop uniformity and entanglement.
[0032]
[Table 1]
[0033]
[Comparative Examples 1 and 2]
The width ratio was 1 (Comparative Example 1) and 6 (Comparative Example 2), the distance a was 3.5 mm, and the fluid ejection angle was 80 degrees. In Comparative Example 1, yarn slack occurred at the nozzle inlet and processing was impossible. In Comparative Example 2, the yarn became unstable at the nozzle inlet, and the entanglement was inferior.
[0034]
The results are shown in Table 2.
[Comparative Example 3 ] The width ratio was 1, the distance a was 0 mm (Comparative Example 3) , and the fluid ejection angle was 80 degrees. Comparative Example 3 yarn slack is generated in the nozzle inlet, processing was unstable. In addition, nep-like loops were scattered and the uniformity was poor.
[0035]
The results are also shown in Table 2.
[Comparative Examples 4 and 5 ] The width ratio was 1.5, the distance a was 3.5 mm, and the injection angle was 150 degrees (Comparative Example 4 ) and 20 degrees (Comparative Example 5 ), respectively. In Comparative Example 4 , yarn slack occurred at the nozzle inlet, and processing was difficult. Comparative Example 5 was inferior in confounding property due to insufficient opening.
[0036]
The results are also shown in Table 2.
[0037]
[Table 2]
[0038]
【The invention's effect】
According to the nozzle of the present invention, the slackness of the sheath yarn at the nozzle inlet can be prevented from spreading to the core yarn, so that the core yarn is exposed from the wound group of the sheath yarn, which was a drawback of the prior art. The problem disappears.
[0039]
Further, in the prior art, composite yarns having a large yarn length difference have problems in process passability such as deterioration of unwinding property. However, according to the nozzle of the present invention, a bulky yarn having excellent uniformity can be obtained. Is greatly improved.
[0040]
Furthermore, the overfeed rate between the core and sheath can be set in a wide range of 0 to 15% as compared with the conventional 0 to 5%. For this reason, since the fiber mixing process of the high overfeed area which was conventionally processable only with an expensive nozzle can also be processed with a relatively inexpensive nozzle, the effect of a large cost reduction was obtained.
[0041]
The yarn obtained by the nozzle of the present invention has a yarn structure in which the sheath yarn is wound around the core yarn, so that it becomes a composite yarn having excellent bulkiness, and when it is made into a fabric, it has excellent bulkiness.
[0042]
Moreover, since the binding of the entangled portion is strong and can be applied in a large amount, the yarn has excellent loop form fastness.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an example of a synthetic fiber nozzle of the present invention.
2 is a cross-sectional view of the nozzle when the nozzle is cut along a plane including the PP plane of FIG. 1 and viewed in the direction of the fluid ejection hole I. FIG.
3 is a cross-sectional view of the nozzle when the nozzle is cut along a plane including the PP plane of FIG. 1 and viewed in the direction of the fluid ejection hole I. FIG.
4 is a cross-sectional view of the nozzle cut along a plane including the QQ plane of FIG. 1; FIG.
[Explanation of symbols]
Y1, Y2: Yarn introduction part Yt: Fluid treatment part Ye: Yarn discharge port I: Fluid injection hole A: Thread path width B: Separation body width C: Separation body a: Rearmost part of separation yarn feeding body Distance ly between the nozzle and the tip of the fluid ejection hole: center line li at the yarn introduction portion li: center line α of the fluid ejection hole: fluid ejection angle
Claims (3)
該糸条導入口と該流体噴射孔の間に、導入される糸条ごとに糸条を分ける分離体を有し、
該糸条導入口から該糸条排出口まで化合繊糸条を通す糸条導入管の内径Aと該分離体の内径Bで表される径比A/Bが、1.1≦A/B≦5、
該分離体と該流体噴射孔の間隔aが0.5mm以上8.5mm以下、かつ、
該糸条導入口における中心線lyと該流体噴射孔の中心線liのなす流体噴射角度αが30°以上110°以下、
であることを特徴とする化合繊用ノズル。A yarn introduction port, a yarn discharge port, and a fluid injection hole between the yarn introduction port and the yarn discharge port, and the fluid injection to the synthetic fiber yarn that is introduced from the yarn introduction port and travels In a nozzle that jets a fluid from the hole to the synthetic fiber yarn and mixes the synthetic fiber yarn,
During the yarn Article inlet and fluid injection holes, it has a separator separating the yarn for each yarn to be introduced,
The diameter ratio A / B represented by the inner diameter A of the yarn introduction tube through which the synthetic fiber yarn passes from the yarn introduction port to the yarn discharge port and the inner diameter B of the separated body is 1.1 ≦ A / B ≦ 5,
The distance a between the separator and the fluid ejection hole is 0.5 mm or more and 8.5 mm or less, and
The fluid injection angle α formed by the center line ly at the yarn introduction port and the center line li of the fluid injection hole is 30 ° or more and 110 ° or less,
A synthetic fiber nozzle characterized by that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002063507A JP3966027B2 (en) | 2002-03-08 | 2002-03-08 | Chemical fiber nozzle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002063507A JP3966027B2 (en) | 2002-03-08 | 2002-03-08 | Chemical fiber nozzle |
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| Publication Number | Publication Date |
|---|---|
| JP2003268646A JP2003268646A (en) | 2003-09-25 |
| JP3966027B2 true JP3966027B2 (en) | 2007-08-29 |
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| JP2002063507A Expired - Fee Related JP3966027B2 (en) | 2002-03-08 | 2002-03-08 | Chemical fiber nozzle |
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| JP2003268646A (en) | 2003-09-25 |
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