JPH0429767B2 - - Google Patents
Info
- Publication number
- JPH0429767B2 JPH0429767B2 JP58197583A JP19758383A JPH0429767B2 JP H0429767 B2 JPH0429767 B2 JP H0429767B2 JP 58197583 A JP58197583 A JP 58197583A JP 19758383 A JP19758383 A JP 19758383A JP H0429767 B2 JPH0429767 B2 JP H0429767B2
- Authority
- JP
- Japan
- Prior art keywords
- yarn
- winding
- tension
- godet roller
- godet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000004804 winding Methods 0.000 claims description 56
- 238000000034 method Methods 0.000 claims description 29
- 239000004952 Polyamide Substances 0.000 claims description 20
- 229920002647 polyamide Polymers 0.000 claims description 20
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000002074 melt spinning Methods 0.000 claims description 2
- 229920001059 synthetic polymer Polymers 0.000 claims description 2
- 230000001050 lubricating effect Effects 0.000 claims 1
- 238000009987 spinning Methods 0.000 description 18
- 230000002441 reversible effect Effects 0.000 description 12
- 230000007423 decrease Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000004744 fabric Substances 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 229920002292 Nylon 6 Polymers 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000013508 migration Methods 0.000 description 4
- 230000005012 migration Effects 0.000 description 4
- 229920002302 Nylon 6,6 Polymers 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
Landscapes
- Artificial Filaments (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Description
本発明は、品質の均一な仮撚加工用ポリアミド
中間配向糸を２糸条以上同時に高速で安定に製糸
することに関する。
従来、仮撚加工用ポリアミド中間配向糸を得る
ために溶融紡糸したポリアミド繊維を4000m／分
前後の速度で引取り、パツケージに取る方法が取
られているが、かかる製造方法の問題点は、高速
系のため、最終段ゴデーローラから巻取機に向か
う糸条が、該最終段ゴデーローラに逆巻し易いと
いう点にあり、従つて、低張力で巻取ることがで
きないので、逆巻きしないように高張力で巻取る
必要があつた。
この逆巻き現象は、さらに高速化し5000〜
7000m／分となると極めて顕著なものとなる。こ
の逆巻き防止のために、ポリエチレンテレフタレ
ート繊維等では単に高張力で巻けばよいが、ポリ
アミドのごとく、遅延的回復の大きいヤング率の
低い中間配向糸では、高張力で巻取ると大幅な巻
取りパツケージフオームの悪化をもたらし、糸の
均一性も大幅に低下するものであつた。
また、高速で中間配向糸を作る上で１対のゴデ
ーローラに１回以上ネルソン巻きし、毛羽立ち等
を防止するために44dtex、9filの糸条に12〜15フ
ツク／ｍ程度の十分な交絡を与えることは、特開
昭52−110920号公報等に記載されている（第１
図）。このように１対のゴデーローラ間にリード
ピツチ（ネルソン角）を設け、１回以上ネルソン
巻付けして高速で製糸する場合は、このリードピ
ツチのために糸条の横揺れや毛羽が生じ易いの
で、十分な交絡を与えることは生じた毛羽等を糸
条内部に隠すためには有効である。しかし、逆
に、製糸上の困難、パツケージの悪化、仮撚加工
糸特性の低下等の弊害が生じるのであつた。すな
わち、ポリアミド中間配向糸の如く、高伸度、低
ヤング率の細い繊維を高速で製糸する場合、この
ような集束性を与えることは、巻取りボビンへの
糸掛け時の困難を起こし、特に紙管ブレードの素
抜けを起こし、また、羽根トラバース方式のワイ
ンダにおいてはパツケージ端面での全糸落ち、端
面の形成不良等の問題を起こすものであつた。し
かも、パツケージからの高速解舒時の輪抜けの発
生、さらに大きな問題として、この中間配向糸を
用いて、仮撚り加工した加工糸の糸としてのブル
ーミングの低下、未解撚の発生、特に低目付天竺
編地においては、モシモシ班、編目寄り、フラツ
ト性等に問題を生じさせることがあつた。
そこで、本発明の第１の目的は、２糸条以上の
仮撚加工用ポリアミド中間配向糸を、安定にかつ
容易に、同時製糸することであり、第２の目的
は、良好なパツケージと良好な糸質を得ることで
あり、さらに第３の目的は、何ら欠点なく均一な
加工糸製品とすることができる良好な仮撚加工用
ポリアミド中間配向糸を得ることである。
かかる発明の目的は、ポリアミド合成重合体を
溶融紡糸し、給油した後、互いに実質的に平行な
回転軸を有する１組の非加熱ゴデーローラに順次
片掛けし、4000m／分以上の速度で取る方法によ
つて２糸条以上の仮撚加工用ポリアミド中間配向
糸を同時に製造する方法において、前記給油と最
初のゴデーローラとの間で空気処理ノズルにより
１Kg／cm2以上の圧空での処理をすること、最終の
ゴデーローラの表面を鏡面とすること、前記巻取
り時の巻取り張力を（4.5／Ｄ＋0.12）ｇ／ｄ以
下（Ｄ＝糸条のデニール）とすること、および、
巻取つた糸条のCF値をＦ／４以下（Ｆ＝糸条の
フイラメント数）とすることを特徴とする仮撚加
工用ポリアミド中間配向糸の製造方法によつて達
成される。
高速で紡糸した仮撚加工用ポリアミド中間配向
糸を巻取るにあたり、このような中間配向糸は吸
湿結晶化による自発伸長を起こすが故に、高速で
ゴデーローラを引回し中に糸の張力が低下し、従
つて、取るにあたつて極めて糸の揺れが大きくな
り易いものである。また、このようなゴデーロー
ラ糸を高速で用いる場合、通常の１対のローラ表
面を梨地仕上げしているが故に、比較的低張力で
も逆巻きなく巻けるのであるが、逆に梨地表面は
糸条把持力を一層低下させ、糸揺れを大きくす
る。しかも、これら１対のゴデーローラ上で多数
の糸条を同時に処理する場合には、糸−糸間の干
渉で糸切れ、毛羽、単糸移動等が起こりやすくな
る。
しかるに、本発明では、実質的に平行な回転軸
を有する１組の非加熱ゴデーローラに順次片掛け
するのであるから、ネルソン巻付けの如く本質的
に糸揺れの力の発生はなく、しかも、最終のゴデ
ーローラ表面が鏡面であるが故に、十分な把持力
で安定に製糸することが可能である。
一方、１組の鏡面のゴデーローラに順次片掛け
する方法においては、一般に、ゴデーローラが十
分な糸条把持力を有するが故に、逆巻きしない安
定限界巻取り張力が高いという欠点を有する。し
かし、本発明の如く給油から最初のゴデーローラ
までの間に空気処理ノズルを設け、１Kg／cm2以上
の圧空で処理することにより、低張力で取つても
逆きすることなく安定に巻取り可能となつたので
ある。そしてまた、この処理時にかかる交絡をそ
の糸条のフイラメント数Ｆに対しＦ／４以下とす
ることにより、最終ゴデーローラ上での糸揺れに
よる多糸条処理時の糸条間干渉、巻取り時の糸掛
け性低下、パツケージ欠点の増加、この中間配向
糸を用いて製造した仮撚加工用糸特性の低下等を
防止することができるようになつたのである。
すなわち、従来の如く、糸条に強固な交絡を与
え、マルチフイラメントを集束し、モノフイラメ
ント化することにより、毛羽、単巻き等を制御す
るというのではなく、糸条内の単糸に適度なマイ
グレーシヨンを与え、ゴデーローラ出口部で逆巻
きしようとする単糸を入れ換えてやることが逆巻
き防止には有効であるということが明らかとなつ
たのである。これは、従来の強固なる交絡を与え
る方法と異なり、例えば従来考えられなかつたよ
うな交絡の全く入らない２フイラメント糸でも、
本発明の圧空処理を施すことにより、逆巻きしな
い安定限界取り張力は17デニール糸の場合で６ｇ
から３ｇへと大幅に低下するのである。
この意味から本発明に用いる空気処理ノズル
は、従来、4000m／分以上の高速での交絡に適す
るとされた高交絡タイプの施回流形、振動形では
なく、単糸間のマイグレーシヨンを安定に起こす
ことのできる対向流形ノズルの方が適している。
また、この圧空処理圧は１Kg／cm2以上であるこ
とが必要である。１Kg／cm2未満の低圧では
4000m／分以上の高速で走る糸条に十分なマイグ
レーシヨンを与えることは困難であり、低張力巻
取りはできない。一方、３Kg／cm2を越える高圧で
は付与した油剤を振切りすぎ、糸にダメージを与
え、強伸度低下をもたらすため、３Kg／cm2以下が
好ましい。
この圧空処理を与える位置は、口金から紡出し
た後に給油した後でなければならない。給油以前
の圧空処理は、仮撚加工用ポリアミド中間配向糸
のような低ヤング率を有し、かつ、それに比し相
対的に低い伸度を有する糸にとつては、糸にダメ
ージを与えるばかりでなく、細化固化域への振動
を励起するために適さない。一方、２糸条以上の
仮撚加工用ポリアミド中間配向糸の逆巻きしない
限界巻取り張力を下げ、低張力で安定に巻取るた
めに、さらに、２糸条以上、特に８糸条ないしは
16糸条のような多糸条を処理する際の処理のし易
さ、および圧空処理によつてゴデーローラ上で複
数糸条が糸揺れし糸条間の干渉を生じることに起
因する糸切れ、毛羽、単糸移動等を防止するため
に、最初のゴデーローラ（第１ゴデーローラ）の
前で、圧空処理することが必要である（第２図）。
仮撚加工用ポリアミド中間配向糸は加熱により
定長応力が低下するので、１組のゴデーローラ
は、糸条安定走行面からも非加熱とする必要があ
る。
本発明法は、巻取り速度が4000m／分以上、特
に4500m／分以上の如き、従来法では、仮撚加工
用ポリアミド中間配向糸を安定に製糸、巻取りし
難かつた場合に有効である。すなわち、本発明法
は4000m／分以上の如き高速紡糸に必要なもので
あつて、4000m／分未満の如き低速製糸には本発
明法を適用する必要はない。一方、本発明の巻取
り速度範囲は、実質的に7000m／分程度までであ
り、7000m／分を越える範囲では、発生する遠心
力が本発明の目的とする適正な巻取り張力範囲を
越えるため、本発明は適用され難い。本発明にお
ける巻取り張力は、逆巻きしない安定限界巻取り
張力の水準以上であること、かつ、十分に良好な
パツケージを得るために、その糸条繊度（デニー
ルＤ）に対し（4.5／Ｄ＋0.12）ｇ／ｄ以下であ
ることが必要である。
なお、第１ゴデーローラ、最終ゴデーローラに
それぞれ糸条を片掛けするとは、糸条の巻付け角
がそれぞれ270度以下であることを意味する。
本発明にいうポリアミドは、ナイロン６、ナイ
ロン６６およびこれをベースとした共重合ポリア
ミドで代表される。
また、本発明における仮撚加工用ポリアミド中
間配向糸は、超高速での随拌気流、空気抵抗、ガ
イド抵抗等に対抗するため、10デニール以上であ
ることが好ましく、過度の髄拌気流による張力ア
ツプの影響を避けるために、50フイラメント以下
であることが好ましい。さらに低張力という本発
明の効果を十分に有効にするために250デニール
以下、特には150デニール以下であることが好ま
しい。
第１図は、給油とゴデーローラとの間で交絡処
理する従来法の概略を示す図であり、紡糸口金１
から紡出された糸条は、冷却装置２で冷却され、
給油装置３で給油された後、交絡ノズル４により
十分な交絡を付与され、１組のゴデーローラ８に
ネルソン巻きされ、巻取り装置７に巻取られる。
第２図は、給油と最初のゴデーローラとの間で
糸条にマイグレーシヨンを生じさせる程度の弱い
圧空処理を施す本発明法の概略を示す図であり、
２糸条取りする場合を示す。第２図では、給油さ
れた糸条は、空気処理ノズル４・４′により圧空
処理され、１組のゴデーローラ５，６に片掛けさ
れた後巻取られる。一方、第３図（比較例）で
は、給油された糸条は、最初のゴデーローラに片
掛けされた後、空気処理ノズル４，４′により圧
空処理され、最終ゴデーローラに片掛けされて巻
取られる。
なお、本発明中で用いた糸条の巻取り張力およ
びCF値は次の方法で測定した値である。
巻取り張力：
本発明に示す張力は、東レ・エンジニアリング
株式会社製“FTR張力計”により、巻取機の振
支点上張力を測定する。
CF値：
米国特許第3290932号明細書に記載された方法
に準じて測定した値である。すなわち、全糸繊度
Ｄ、フイラメント数Ｆである糸条に金属針を刺
し、該金属針と巻取りロールとの間に発生する糸
条張力を感知し、該糸条張力の初張力を（0.2×
Ｄ）ｇに調整し、走行糸張力が（0.2×Ｄ＋Ｄ／
Ｆ）ｇ以上になつた点を交絡点とし、該交絡点間
の糸条長（−開繊長）を50回繰返し測定し、その
平均値（Ｌcm）をとり、CF値＝100／Ｌにより算
出する。
本発明法によると、高速紡糸時のゴデーローラ
への糸条逆巻きが防止され、しかも、良好なパツ
ケージ、良好な糸質および良好な加工糸特性を得
ることができるので、良質な仮撚加工用ポリアミ
ド中間配向糸を安定かつ容易に製造することがで
きる。
次に、実施例により、本発明を具体的に説明す
る。
なお、以下の表において評価結果を示す符号：
◎、〇、△、×、××は、それぞれ、極めて良好、
良好、たた不良、不良、極めて不良を意味する。
●実施例 １
硫酸相対粘度2.6のナイロン６チツプを溶融紡
糸し、40デニール10フイラメントの糸条８本をそ
れぞれ給油後空気処理ノズルにより処理し、２個
のゴデーローラを巻回し後巻取機に巻取つた。２
個のゴデーローラの軸を平行にして糸条巻付け角
を180度で片掛けした方式Ａ（第２図）と、１対の
ゴデーローラ軸にリード角をつけ１回以上ネルソ
ン巻付けする方式Ｂ（第１図）とについて、紡糸
速度を変更して巻取つた結果を第１表に示す。
空気処理ノズルは1.2mmφの糸道に対向空気流
が入るタイプのものを使用した。ローラ方式Ａで
は、最終ゴデーローラ表面は鏡面であつた。ま
た、ローラ方式Ｂではゴデーローラ表面は梨地で
あつた。
The present invention relates to the stable spinning of two or more yarns of polyamide intermediately oriented yarn for false twisting with uniform quality simultaneously at high speed. Conventionally, in order to obtain polyamide intermediately oriented yarn for false twisting, melt-spun polyamide fibers are taken at a speed of around 4000 m/min and packaged into packages, but the problem with this manufacturing method is that the high speed Because of the system, the yarn traveling from the final stage godet roller to the winding machine is likely to reverse wind on the final stage godet roller. Therefore, it cannot be wound with low tension, so high tension is applied to prevent reverse winding. I had to wind it up. This reverse winding phenomenon is further accelerated to 5000~
At 7000m/min, it becomes extremely noticeable. To prevent this reverse winding, polyethylene terephthalate fibers can simply be wound with high tension, but with intermediately oriented yarns with low Young's modulus and large delayed recovery, such as polyamide fibers, winding with high tension can cause a large amount of winding damage. This resulted in deterioration of the foam and a significant decrease in the uniformity of the yarn. In addition, in order to make intermediately oriented yarn at high speed, it is nelson-wound at least once around a pair of godet rollers, and the 44 dtex, 9 fil yarn is sufficiently entangled at about 12 to 15 hooks/m to prevent fuzzing. This is stated in Japanese Unexamined Patent Publication No. 110920/1983 (No.
figure). In this way, when a lead pitch (Nelson angle) is provided between a pair of Godet rollers and the Nelson winding is performed more than once to produce yarn at high speed, the thread tends to sway and fluff due to this lead pitch, so be careful not to Providing sufficient entanglement is effective for hiding generated fuzz, etc. inside the yarn. However, on the contrary, disadvantages such as difficulty in yarn spinning, deterioration of the package, and deterioration of the properties of the false-twisted yarn occur. That is, when spinning thin fibers with high elongation and low Young's modulus, such as intermediately oriented polyamide yarn, at high speed, providing such convergence causes difficulties when threading the yarn onto the winding bobbin, and especially This causes the paper tube blade to slip through, and in blade traverse type winders, problems such as all the threads falling off at the end face of the package and poor formation of the end face occur. In addition, loops may come off during high-speed unwinding from the package, and even more serious problems include a decrease in blooming of the false-twisted processed yarn using this intermediately oriented yarn, and the occurrence of ununtwisted yarn. In the case of cotton jersey knitted fabrics, problems such as looseness, stitch deviation, and flatness may occur. Therefore, the first objective of the present invention is to stably and easily simultaneously spin two or more polyamide intermediately oriented yarns for false twisting, and the second objective is to provide good package and The third objective is to obtain a good intermediately oriented polyamide yarn for false twisting that can be made into a uniform processed yarn product without any defects. The purpose of this invention is to provide a method for melt-spinning a polyamide synthetic polymer, supplying oil, and then sequentially hooking it onto a pair of non-heated godet rollers having rotational axes substantially parallel to each other at a speed of 4000 m/min or more. In the method of simultaneously producing two or more yarns of intermediately oriented polyamide yarn for false twisting, the process is performed with compressed air of 1 kg/cm 2 or more using an air treatment nozzle between the oil supply and the first godet roller. , the surface of the final godet roller is mirror-finished, the winding tension at the time of winding is (4.5/D + 0.12) g/d or less (D = denier of the yarn), and
This is achieved by a method for producing intermediately oriented polyamide yarn for false twisting, which is characterized in that the CF value of the wound yarn is F/4 or less (F = number of filaments in the yarn). When winding polyamide intermediately oriented yarn for false twisting spun at high speed, such intermediately oriented yarn undergoes spontaneous elongation due to moisture absorption and crystallization, so the tension of the yarn decreases while winding the Godet roller at high speed. Therefore, the yarn tends to swing considerably when being picked up. Furthermore, when using such godet roller yarn at high speeds, because the surfaces of the pair of normal rollers have a satin finish, they can be wound without reverse winding even under relatively low tension. to further reduce the yarn sway. Moreover, when a large number of yarns are processed simultaneously on these pair of godet rollers, yarn breakage, fuzz, single yarn movement, etc. are likely to occur due to interference between yarns. However, in the present invention, since the windings are sequentially carried out on a pair of non-heated godet rollers having substantially parallel rotational axes, there is essentially no yarn swinging force generated as in Nelson winding, and furthermore, the final Since the surface of the godet roller is a mirror surface, it is possible to stably spin yarn with sufficient gripping force. On the other hand, the method of one-sided winding one after another on a set of mirror-finished godet rollers generally has the disadvantage that the stable limit winding tension that prevents reverse winding is high because the godet rollers have sufficient yarn gripping force. However, as in the present invention, by installing an air treatment nozzle between oil supply and the first godet roller and processing with compressed air of 1 kg/cm 2 or more, stable winding is possible without reversing even when taken with low tension. It became. Furthermore, by controlling the entanglement during this process to less than F/4 with respect to the number of filaments of the yarn, interference between yarns during multi-filament processing due to yarn sway on the final godet roller, and interference during winding. It is now possible to prevent a decrease in threading properties, an increase in package defects, and a decrease in the properties of a false-twisted yarn produced using this intermediately oriented yarn. In other words, rather than controlling fuzz, single winding, etc. by giving strong entanglement to the yarn, converging multifilaments, and making them into monofilaments, as in the past, it is possible to control the fuzz, single winding, etc. It has become clear that giving migration and replacing the single yarn that is about to wind backwards at the exit of the goder roller is effective in preventing reverse winding. This is different from conventional methods that provide strong entanglement, and for example, even two-filament yarns with no entanglement, which was previously unthinkable, can be used.
By applying the compressed air treatment of the present invention, the stable limit tension without reverse winding is 6g for 17 denier yarn.
This results in a significant drop from 3g to 3g. In this sense, the air treatment nozzle used in the present invention is designed to stabilize migration between single yarns, rather than the high-entanglement type, circulating flow type or vibration type, which are conventionally considered to be suitable for high-speed entanglement of 4000 m/min or more. A counter-flow nozzle that can be raised is more suitable. Further, this compressed air treatment pressure needs to be 1 Kg/cm 2 or more. At low pressures below 1Kg/ cm2
It is difficult to provide sufficient migration to yarns running at high speeds of 4000 m/min or more, and low tension winding is not possible. On the other hand, if the pressure exceeds 3 Kg/cm 2 , the applied oil will be shaken off too much, damaging the yarn and causing a decrease in strength and elongation, so a pressure of 3 Kg/cm 2 or less is preferable. The position where this compressed air treatment is applied must be after refueling after spinning from the spinneret. Pressurized air treatment before oiling can cause damage to yarns that have a low Young's modulus and relatively low elongation, such as polyamide intermediately oriented yarns for false twisting. It is not suitable for exciting vibrations into the thinning solidified region. On the other hand, in order to lower the limit winding tension that prevents reverse winding of polyamide intermediate oriented yarn for false twisting with two or more yarns, and to wind it stably at low tension, it is necessary to
Ease of processing when processing multi-filament threads such as 16 threads, and thread breakage caused by multiple threads swaying on the godet roller due to air pressure treatment and causing interference between threads. In order to prevent fluff, single yarn movement, etc., it is necessary to perform air pressure treatment before the first godet roller (FIG. 2). Since the constant length stress of intermediately oriented polyamide yarn for false twisting is reduced by heating, it is necessary that one set of Godet rollers is not heated from the viewpoint of stable yarn running. The method of the present invention is effective in cases where the winding speed is 4,000 m/min or more, particularly 4,500 m/min or more, where it is difficult to stably spin and wind polyamide intermediately oriented yarn for false twisting using conventional methods. . That is, the method of the present invention is necessary for high speed spinning such as 4000 m/min or more, and there is no need to apply the present method to low speed spinning such as less than 4000 m/min. On the other hand, the winding speed range of the present invention is substantially up to about 7000 m/min, and in a range exceeding 7000 m/min, the centrifugal force generated exceeds the appropriate winding tension range aimed at by the present invention. , the present invention is difficult to apply. The winding tension in the present invention is set to be equal to or higher than the stable limit winding tension that prevents reverse winding, and in order to obtain a sufficiently good package, the winding tension is set to (4.5/D + 0.12) with respect to the yarn fineness (denier D). ) g/d or less. It should be noted that the expression that the yarn is wound on each of the first godet roller and the final godet roller means that the winding angle of the yarn is 270 degrees or less. The polyamide referred to in the present invention is typified by nylon 6, nylon 66, and copolyamides based on these. In addition, the intermediately oriented polyamide yarn for false twisting in the present invention preferably has a denier of 10 denier or more in order to resist agitating airflow, air resistance, guide resistance, etc. at ultra-high speeds, and tension caused by excessive pith agitating airflow. The number of filaments is preferably 50 or less in order to avoid the effects of build-up. Furthermore, in order to fully utilize the effect of the present invention of low tension, it is preferably 250 denier or less, particularly 150 denier or less. FIG. 1 is a diagram showing an outline of the conventional method of entangling between the oil supply and the godet roller, and shows the spinneret 1.
The yarn spun from is cooled by a cooling device 2,
After being supplied with oil by the oil supply device 3, it is sufficiently entangled by the interlacing nozzle 4, wound around a pair of godet rollers 8 in a nelson fashion, and wound up by the winding device 7. FIG. 2 is a diagram schematically showing the method of the present invention, which performs a weak compressed air treatment that causes migration in the yarn between the oil supply and the first godet roller.
The case where two threads are taken is shown. In FIG. 2, the lubricated yarn is treated with air by air treatment nozzles 4 and 4', hung on one side by a pair of godet rollers 5 and 6, and then wound up. On the other hand, in FIG. 3 (comparative example), the lubricated yarn is hung on the first godet roller, then treated with air by air treatment nozzles 4 and 4', and then wrapped on the final godet roller and wound. . Note that the winding tension and CF value of the yarn used in the present invention are values measured by the following method. Winding tension: The tension shown in the present invention is determined by measuring the tension at the fulcrum point of the winding machine using an "FTR tension meter" manufactured by Toray Engineering Co., Ltd. CF value: A value measured according to the method described in US Pat. No. 3,290,932. That is, a metal needle is inserted into a yarn having a total yarn fineness D and a filament number F, the yarn tension generated between the metal needle and the winding roll is sensed, and the initial tension of the yarn tension is calculated as (0.2 ×
D) g, and the running thread tension is (0.2×D+D/
F) The point at which the value exceeds g is defined as the intertwining point, and the yarn length (-opening length) between the intertwined points is repeatedly measured 50 times, the average value (Lcm) is taken, and the CF value = 100/L. calculate. According to the method of the present invention, reverse winding of the yarn around the godet roller during high-speed spinning can be prevented, and in addition, good package, good yarn quality, and good processing yarn properties can be obtained. Intermediately oriented yarns can be produced stably and easily. Next, the present invention will be specifically explained with reference to Examples. In addition, the codes indicating the evaluation results in the table below:
◎, 〇, △, ×, XX are extremely good, respectively.
It means good, very bad, bad, and extremely bad. ●Example 1 Nylon 6 chips with a relative viscosity of 2.6 in sulfuric acid were melt-spun, 8 threads of 40 denier 10 filaments were each treated with an air treatment nozzle after oiling, and wound around two godet rollers and then wound on a winder. I took it. 2
Method A (Figure 2), in which the axes of the godet rollers are parallel and the thread is wound on one side at a winding angle of 180 degrees, and method B, in which a lead angle is set on a pair of godet roller shafts and nelson winding is carried out one or more times (see Figure 2). Table 1 shows the results of winding with different spinning speeds for (Fig. 1). The air treatment nozzle used was of the type that allows opposing airflow to enter the 1.2 mmφ yarn path. In roller method A, the final Godet roller surface was a mirror surface. Further, in roller method B, the surface of the godet roller was matte.
【表】
第１表に示すように、本発明法によるローラ方
式Ａでは、製糸の安定性は6000m／分でも良好で
あつたが、ローラ方式Ｂ（比較）では5000m／分
で製糸不安定となり、6000m／分では製糸を続け
ることは困難であつた。
●実施例 ２
実施例１において、本発明による空気処理と強
い交絡を与えた場合の糸掛け性、パツケージ特性
を比較した。
また、２個のゴデーローラ間で交絡処理する方
式（ローラ方式Ｃ）で低張力、高交絡を付与する
場合（比較例）についても行ない、その結果を、
No.10、13として示した。
第２表に示すように、本発明法によるNo.７、
８、11、12の場合では、糸掛け成功率、糸落ちと
もに良好であつたが、２個のゴデーローラ間で強
い交絡を与えた比較例（No.10、13）では大幅に紙
管ブレードへの食い込みが悪化して糸掛け成功率
が大幅に低下し、さらに糸落ちも発生した。[Table] As shown in Table 1, in roller method A according to the present invention, the stability of yarn spinning was good even at 6000 m/min, but in roller method B (comparison), yarn spinning became unstable at 5000 m/min. , it was difficult to continue spinning silk at 6000 m/min. ●Example 2 In Example 1, the threading properties and package characteristics were compared between the air treatment according to the present invention and the case where strong entanglement was applied. We also conducted a case (comparative example) in which low tension and high entanglement was applied using the method of entangling between two Godet rollers (roller method C), and the results were as follows:
Shown as No. 10 and 13. As shown in Table 2, No. 7 according to the method of the present invention,
In cases of Nos. 8, 11, and 12, thread threading success rate and thread drop were both good, but in comparative examples (Nos. 10 and 13) in which strong entanglement was caused between the two godet rollers, the yarn threading rate was significantly lower than that of the paper tube blade. As the threading became worse, the success rate of thread threading decreased significantly, and thread dropouts also occurred.
【表】
●実施例 ３
実施例２と同様に、ローラ方式Ａ、Ｃで８糸条
同時高速紡糸する際の糸の扱い易さ、紡糸安定性
を、糸掛時のゴデーローラや交絡処理ノズルへの
糸引回し性、巻取機への糸掛性、ゴデーローラ上
の走行糸条安定性、及び高速紡糸時の糸切れ回数
でもつて評価した。
第３表に示すように、糸条交絡処理を給油と第
１ゴデーローラとの間で行なう場合は、ゴデーロ
ーラ間交絡処理よりも糸の扱い易さ、紡糸安定性
が良好であつた。[Table] ●Example 3 Similar to Example 2, the ease of handling yarn and spinning stability during simultaneous high-speed spinning of 8 yarns using roller methods A and C were evaluated using the Godet roller during threading and the interlacing treatment nozzle. The yarn drawing performance, the yarn threading ability on the winder, the stability of the running yarn on the Godet roller, and the number of yarn breakages during high-speed spinning were also evaluated. As shown in Table 3, when the yarn entanglement treatment was performed between the oil supply and the first Godet roller, the yarn was easier to handle and the spinning stability was better than when the yarn entanglement treatment was performed between the Godet rollers.
【表】
●実施例 ４
硫酸相対粘度2.60のナイロン66チツプを溶融紡
糸し、80デニール、24フイラメントの糸条を４本
それぞれ給油後、空気処理ノズルにより処理し、
実施例１のゴデーローラ方式Ａで5500m／分で巻
取るに際し、最終ゴデーローラに逆巻きが発生す
る安定巻取り限界張力とパツケージフオームとを
評価し第４表の結果を得た。
第４表のように、１Kg／cm2以上の空気処理を施
すことにより低張力巻取りが可能となり、良好な
パツケージフオームを得ることができた。[Table] ●Example 4 Nylon 66 chips with a sulfuric acid relative viscosity of 2.60 were melt-spun, and four 80-denier, 24-filament yarns were each treated with an air treatment nozzle after oiling.
When winding at 5500 m/min using the godet roller method A of Example 1, the stable winding limit tension at which reverse winding occurs on the final godet roller and the package form were evaluated, and the results shown in Table 4 were obtained. As shown in Table 4, by applying air treatment of 1 Kg/cm 2 or more, low tension winding became possible and a good package form could be obtained.
【表】
また同様に、15デニール、３フイラメントの糸
を4700m／分で高速製糸して評価し、第５表の結
果を得た。[Table] Similarly, 15 denier, 3 filament yarn was spun at a high speed of 4700 m/min and evaluated, and the results shown in Table 5 were obtained.
【表】
●実施例 ６
実施例１のゴデーローラ方式Ａによつて得られ
る各種のCF値を変えたナイロン６中間配向糸に
ついて仮撚り加工を行い、加工糸の品位を評価し
た。
No.24〜26の場合、得られた加工糸は15デニール
のトルクタイプ仮撚加工糸であり、この加工糸か
らシアーフラツトタイプのストツキングを編成
し、その編地のモンモン斑、フラツト性を評価し
た。
No.27、28の場合、得られた加工糸は14デニール
のウーリータイプ仮撚加工糸であり、この加工糸
からウーリータイプのストツキングを編成し、そ
の編地の目寄り、フラツト性を評価した。
No.29、30の場合、得られた加工糸は33デニール
のウーリータイプ仮撚加工糸であり、この加工糸
からパンテイストツキングのパンテイ部を編成
し、その編地の目寄り、フラツト性を評価した。
No.31〜34の場合、得られた加工糸は70デニール
のウーリータイプ仮撚加工糸であり、この加工糸
からタイツを編成し、その編地のフラツト性、未
解撚を評価した。
第６表のように、加工糸品位面からCF値は、
Ｆ／４以下とすることが必要であつた。[Table] ●Example 6 Nylon 6 intermediately oriented yarns obtained by the Godet roller method A of Example 1 with various CF values were false-twisted, and the quality of the processed yarns was evaluated. In the case of Nos. 24 to 26, the obtained processed yarn is a 15 denier torque type false twisted processed yarn, and sheer flat type stockings are knitted from this processed yarn, and the unevenness and flatness of the knitted fabric are evaluated. In the case of Nos. 27 and 28, the obtained processed yarn was a 14 denier woolly type false twisted processed yarn, and woolly type stockings were knitted from this processed yarn, and the stitching and flatness of the knitted fabric were evaluated. . In the case of Nos. 29 and 30, the obtained processed yarn is a woolly type false twisted processed yarn of 33 denier, and the panty part of the panty pants is knitted from this processed yarn. was evaluated. In the case of Nos. 31 to 34, the obtained processed yarn was a woolly type false twisted processed yarn of 70 denier, and tights were knitted from this processed yarn, and the flatness and untwisted fabric of the knitted fabric were evaluated. As shown in Table 6, in terms of processed yarn quality, the CF value is
It was necessary to set it to F/4 or less.
【表】
●実施例 ６
実施例１のNo.１〜３と同時に、前記ゴデーロー
ラ方式Ａによつて、ナイロン６とナイロン66の中
間配向糸について、本発明法による各種巻取り張
力を変更し、巻取りを行なつた。
第７表のように、本発明法において、〔4.5／Ｄ
＋0.12〕ｇ／ｄ以下の巻取り張力をとると、高速
で良好なパツケージを得ることができることが明
らかである。[Table] ●Example 6 Simultaneously with Nos. 1 to 3 of Example 1, various winding tensions were changed using the method of the present invention for intermediately oriented yarns of nylon 6 and nylon 66 using the Godet roller method A. I did the winding. As shown in Table 7, in the method of the present invention, [4.5/D
It is clear that a winding tension of less than +0.12]g/d makes it possible to obtain a good package at high speed.
第１図はゴデーローラ前で交絡処理する従来の
紡糸工程を示す概略図である。第２図は本発明法
を実施するための紡糸工程を例示する概略図であ
る。第３図はゴデーローラ間で交絡する紡糸工程
（比較例）を例示する概略図である。
３，３′：給油装置、４，４′：空気処理ノズ
ル、５，６：１組のゴデーローラ、７：巻取装
置。
FIG. 1 is a schematic diagram showing a conventional spinning process in which the yarn is entangled before a godet roller. FIG. 2 is a schematic diagram illustrating a spinning process for carrying out the method of the present invention. FIG. 3 is a schematic diagram illustrating a spinning process (comparative example) in which fibers are entangled between godet rollers. 3, 3': oil supply device, 4, 4': air treatment nozzle, 5, 6: one set of godet rollers, 7: winding device.
Claims (1)
た後、互いに実質的に平行な回転軸を有する１組
の非加熱ゴデーローラに順次片掛けし、4000m／
分以上の速度で巻取る方法によつて２糸条以上の
仮撚加工用ポリアミド中間配向糸を同時に製造す
る方法において、前記給油と最初のゴデーローラ
との間で空気処理ノズルにより１Kg／cm2以上の圧
空での処理をすること、最終のゴデーローラの表
面を鏡面とすること、前記巻取り時の巻取り張力
を（4.5／Ｄ＋0.12）ｇ／ｄ以下（Ｄ＝糸条のデ
ニール）とすること、および、巻取つた糸条の
CF値をＦ／４以下（Ｆ＝糸条のフイラメント数）
とすることを特徴とする仮撚加工用ポリアミド中
間配向糸の製造方法。1. After melt-spinning and lubricating a polyamide synthetic polymer, it was hung one by one on a pair of non-heated godet rollers having rotational axes substantially parallel to each other, and spun for 4000 m/s.
In a method for simultaneously producing two or more yarns of intermediately oriented polyamide yarn for false twisting by winding at a speed of 1 kg/cm 2 or more, an air treatment nozzle is used between the oil supply and the first Godet roller to produce 1 Kg/cm 2 or more. The surface of the final godet roller should be mirror-finished, and the winding tension at the time of winding should be (4.5/D + 0.12) g/d or less (D = denier of the yarn). and the winding of the yarn.
CF value is F/4 or less (F = number of filaments in yarn)
A method for producing intermediately oriented polyamide yarn for false twisting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19758383A JPS6094616A (en) | 1983-10-24 | 1983-10-24 | Production of intermediately oriented polyamide yarn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19758383A JPS6094616A (en) | 1983-10-24 | 1983-10-24 | Production of intermediately oriented polyamide yarn |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6094616A JPS6094616A (en) | 1985-05-27 |
| JPH0429767B2 true JPH0429767B2 (en) | 1992-05-19 |
Family
ID=16376898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19758383A Granted JPS6094616A (en) | 1983-10-24 | 1983-10-24 | Production of intermediately oriented polyamide yarn |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6094616A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01162833A (en) * | 1987-12-18 | 1989-06-27 | Unitika Ltd | Automatic change-over and take-up method of synthetic fiber yarn |
| GB2372512B (en) * | 2001-02-27 | 2004-10-27 | Du Pont | Methods for the manufacture of mixed polyamide yarns |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5299345A (en) * | 1976-02-12 | 1977-08-20 | Teijin Ltd | Multiifilament yarn for knitting and weaving |
| JPS52124922A (en) * | 1976-04-08 | 1977-10-20 | Toray Ind Inc | Multifilament yarns and production thereof |
| JPS5735287A (en) * | 1980-08-09 | 1982-02-25 | Toyobo Co Ltd | Rotary heat pipe type heat exchanger |
| JPS58205516A (en) * | 1982-05-25 | 1983-11-30 | Fuiruton Internatl Kk | Ceramic cartridge filter |
-
1983
- 1983-10-24 JP JP19758383A patent/JPS6094616A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5299345A (en) * | 1976-02-12 | 1977-08-20 | Teijin Ltd | Multiifilament yarn for knitting and weaving |
| JPS52124922A (en) * | 1976-04-08 | 1977-10-20 | Toray Ind Inc | Multifilament yarns and production thereof |
| JPS5735287A (en) * | 1980-08-09 | 1982-02-25 | Toyobo Co Ltd | Rotary heat pipe type heat exchanger |
| JPS58205516A (en) * | 1982-05-25 | 1983-11-30 | Fuiruton Internatl Kk | Ceramic cartridge filter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6094616A (en) | 1985-05-27 |
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