JPS5921971B2 - Polyester fiberglass - Google Patents

Polyester fiberglass

Info

Publication number
JPS5921971B2
JPS5921971B2 JP14906175A JP14906175A JPS5921971B2 JP S5921971 B2 JPS5921971 B2 JP S5921971B2 JP 14906175 A JP14906175 A JP 14906175A JP 14906175 A JP14906175 A JP 14906175A JP S5921971 B2 JPS5921971 B2 JP S5921971B2
Authority
JP
Japan
Prior art keywords
yarn
false
undrawn
twisting
tension
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
Application number
JP14906175A
Other languages
Japanese (ja)
Other versions
JPS5274023A (en
Inventor
洋次 黒田
紀久雄 堀
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Teijin Ltd
Original Assignee
Teijin Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Teijin Ltd filed Critical Teijin Ltd
Priority to JP14906175A priority Critical patent/JPS5921971B2/en
Publication of JPS5274023A publication Critical patent/JPS5274023A/en
Publication of JPS5921971B2 publication Critical patent/JPS5921971B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Description

【発明の詳細な説明】 本発明は高速紡糸により得られたポリエステル未延伸糸
を延伸と同時に仮撚加工することによって捲縮加工糸を
製造する方法に関するものであり、仮撚スピンドル回転
数45万rpm以上の高速で延伸仮撚加工する際、未延
伸糸の経時変化に起因する捲縮加工糸の染着差(濃染化
)を減少させて均一な品質の捲縮加工糸を製造すること
を目的とするものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing crimped yarn by simultaneously drawing and false-twisting undrawn polyester yarn obtained by high-speed spinning. To produce a crimped yarn of uniform quality by reducing the dyeing difference (dark dyeing) of the crimped yarn caused by changes over time in the undrawn yarn when drawing and false twisting is performed at a high speed of rpm or higher. The purpose is to

最近、紡糸速度2500 m7分以上の高速紡糸により
得られたポリエステル未延伸糸(該未延伸糸は一般に“
POY“と略称されている)に、延伸と同時に仮撚加工
を施すことにより捲縮加工糸を製造する方法が実施され
るようになった。
Recently, undrawn polyester yarn obtained by high-speed spinning at a spinning speed of 2500 m or more for 7 minutes (the undrawn yarn is generally
A method of producing crimped yarn by subjecting crimped yarn (abbreviated as "POY") to stretching and false twisting at the same time has been implemented.

このような高速紡糸によるポリエステル未延伸糸は通常
のポリエステル未延伸糸に比べて経時安定性が良く、従
って、未延伸糸の経時変化に起因する捲縮加工糸の染着
異常(濃染化)の問題は少いと云われている。
Undrawn polyester yarn produced by such high-speed spinning has better stability over time than ordinary undrawn polyester yarn, and therefore dyeing abnormalities (dark dyeing) of crimped yarn due to changes in undrawn yarn over time are avoided. It is said that there are few problems.

一方、延伸仮撚加工機についてみると、従来のものは仮
撚スピンドルの回転数が高々30万〜40万rpmであ
ったが、最近、加工速度の上昇による生産性向上を目的
として高速仮撚加工機の開発がすすみ、仮撚スピンドル
回転数が50万〜70万rpm程度のものが市販される
ようになり、今後ますます高速化が進むものとみられる
On the other hand, regarding stretch false-twisting processing machines, the rotation speed of the false-twisting spindle in conventional machines was 300,000 to 400,000 rpm at most, but recently high-speed false-twisting has been developed to improve productivity by increasing processing speed. As the development of processing machines progresses, machines with a false twisting spindle rotation speed of about 500,000 to 700,000 rpm are now on the market, and it is expected that speeds will continue to increase in the future.

ところが、高速紡糸により得られたポリエステル未延伸
糸(poy)をこのような高速で加工すると、従来の仮
撚スピンドル回転数30万rpm程度の加工では問題に
ならなかった未延伸糸の経時変化による捲縮加工糸の染
着異常が発生することが判ってきた。
However, when polyester undrawn yarn (poy) obtained by high-speed spinning is processed at such high speeds, problems occur due to aging of the undrawn yarn, which did not pose a problem with conventional processing at a false twisting spindle rotation speed of about 300,000 rpm. It has been found that dyeing abnormalities occur in crimped yarns.

このことは、高速紡糸により得られた未延伸糸(POY
)といえども延伸糸に比べ経時に対する安定性は遥かに
劣り、該未延伸糸を紡糸工場から遠く離れた延伸仮撚加
工丁場へ輸送する場合、輸送中あるいは延伸仮撚加工ま
での保存中に該未延伸糸の経時変化を招き、この経時変
化の影響が加工速度が増大するにつれて著るしく拡大さ
れ、仮撚スピンドル回転数が45万rpm程度より大き
くなると経時変化による捲縮加工糸の染着異常(濃染化
)の問題が顕在化するためと推察される。
This indicates that the undrawn yarn obtained by high-speed spinning (POY
) However, the stability over time is far inferior to that of drawn yarn, and when the undrawn yarn is transported from a spinning factory to a drawing and false-twisting processing center far away, it may be difficult to maintain stability over time during transportation or during storage before drawing and false-twisting. This causes the undrawn yarn to change over time, and the effect of this change over time becomes significantly magnified as the processing speed increases, and when the rotational speed of the false twisting spindle exceeds about 450,000 rpm, the dyeing of the crimped yarn due to the change over time increases. It is assumed that this is due to the problem of abnormal adhesion (dark dyeing) becoming apparent.

本発明者らは、前述の問題を解決すべく研究を重ねた結
果、(1)捲縮加工糸の染着異常(濃染化)は、未延伸
糸の分子配向及び延伸仮撚加工条件とくに仮撚スピンド
ル直前の糸条張力によって左右されること、及び(2)
−未延伸糸として従来汎用の高速紡糸による未延伸糸(
POY)よりも複屈折率の太きいものを使用すると共に
、仮撚スピンドル直前の糸条張力を従来汎用されている
張力に比べて非常に高い特定の範囲内に選定することに
よって、前述の如き高速加工における捲縮加工糸の染着
異常の問題が解決されることを見い出し本発明に到達し
たものである。
As a result of repeated research to solve the above-mentioned problems, the present inventors found that (1) dyeing abnormality (deep dyeing) of crimped yarn is caused by molecular orientation of undrawn yarn and stretching and false-twisting processing conditions. depends on the yarn tension just before the false twisting spindle; and (2)
−Undrawn yarn produced by conventional general-purpose high-speed spinning as undrawn yarn (
By using a yarn with a higher birefringence than POY and by selecting the yarn tension just before the false twisting spindle within a specific range that is much higher than the tension commonly used in the past, The present invention was developed based on the discovery that the problem of abnormal dyeing of crimped yarn during high-speed processing can be solved.

即ち、本発明は、高速紡糸により得られたポリエステル
未延伸糸を、供給ローラと延伸ローラとの間に撚固定ヒ
ータ及び仮撚スピンドルを有する延伸仮撚加工機により
、仮撚スピンドル回転数45万rpm以上で延伸同時仮
撚加工を行い捲縮加工糸を製造するに際し、前記未延伸
糸として複屈折率(△n)0.04以上のものを用い、
且つ、加工時における仮撚スピンドル直前の糸条張力(
T1g/de)を、下記式 %式% 〔但し、△nは未延伸糸の複屈折率、TIは仮撚スピン
ドル直前の糸条張力(g/d e )を示す〕の範囲内
に保持することを特徴とするポリエステル捲縮加工糸の
製造法である。
That is, in the present invention, polyester undrawn yarn obtained by high-speed spinning is processed by a drawing false-twisting machine having a twist fixing heater and a false-twisting spindle between a supply roller and a drawing roller, at a false-twisting spindle rotation rate of 450,000. When producing a crimped yarn by performing simultaneous stretching and false twisting at rpm or more, use a birefringence index (△n) of 0.04 or more as the undrawn yarn,
In addition, the yarn tension just before the false twisting spindle during processing (
T1g/de) is maintained within the range of the following formula % [where △n is the birefringence of the undrawn yarn, and TI is the yarn tension (g/de) immediately before the false twist spindle]. This is a method for producing crimped polyester yarn.

以下、本発明を図面によって詳細に説明する。Hereinafter, the present invention will be explained in detail with reference to the drawings.

第1図は本発明の一実施態様を示す概略図で、図中1は
未延伸糸パッケージ、2は未延伸糸取出しガイド、3は
供給ローラ、4は撚固定ヒータ、5は仮撚スピンドル、
6は延伸ローラ、7はワインダーを示す。
FIG. 1 is a schematic diagram showing one embodiment of the present invention, in which 1 is an undrawn yarn package, 2 is an undrawn yarn take-out guide, 3 is a supply roller, 4 is a twist fixing heater, 5 is a false twist spindle,
6 is a stretching roller, and 7 is a winder.

本発明は、高速紡糸により得られたポリエステル未延伸
糸を、前記パッケージ1より解舒し未延伸糸取出しガイ
ド2を経て供給ローラ3に導き、該供給ローラ4と下流
の延伸ローラ6との間で所定倍率に延伸すると共に、4
5万rpm以上(好ましくは50万rpm以上)の高速
で回転する仮撚スピンドル5により仮撚を付与し、その
撚を撚固定ヒータ4にて固定することによって捲縮加工
糸を製造する場合に適用される。
In the present invention, undrawn polyester yarn obtained by high-speed spinning is unrolled from the package 1 and guided to a supply roller 3 via an undrawn yarn take-out guide 2, and between the supply roller 4 and a downstream drawing roller 6. Stretch it to a predetermined magnification with
When producing crimped yarn by imparting false twist with a false twisting spindle 5 rotating at a high speed of 50,000 rpm or more (preferably 500,000 rpm or more) and fixing the twist with a twist fixing heater 4. Applicable.

従来、延伸仮撚加工では、加工中の糸切れ、毛羽等の発
生を抑えるためできるだけ仮撚スピンドル5直前の糸条
張力(以下「加工張力」と略称する)を低くすべきであ
ると考えられ゛ており前記加工張力を約0.17〜0.
20g/de程として加工するのが通例であるが、本発
明者らの研究によれば、加工張力を従来よりも高くして
0.23g/de以上とすることにより、経時変化の相
違による染着差が著るしく減少することが判った。
Conventionally, in draw false twisting processing, it has been thought that the yarn tension immediately before the false twisting spindle 5 (hereinafter abbreviated as "processing tension") should be as low as possible in order to suppress the occurrence of yarn breakage, fuzz, etc. during processing. The processing tension was set at about 0.17~0.
It is customary to process at a tension of about 20 g/de, but according to the research of the present inventors, by increasing the processing tension to 0.23 g/de or more, which is higher than before, the dyeing due to differences in aging can be reduced. It was found that the difference in performance was significantly reduced.

第2図は、この事実を示すもので、紡糸条件は同じで経
時条件の異なる2種のポリエチレンテレフタレート未延
伸糸(poy)を仮撚スピンドル回転数50万rpmで
延伸と同時に仮撚加工した場合の、加工張力(TI)と
得られた2種の捲縮加工糸の染着差の関係を示すグラフ
である。
Figure 2 shows this fact, where two types of polyethylene terephthalate undrawn yarns (poy) under the same spinning conditions but different aging conditions are drawn and simultaneously false-twisted at a false-twisting spindle rotation speed of 500,000 rpm. 2 is a graph showing the relationship between the processing tension (TI) and the dyeing difference between the two types of crimped yarns obtained.

この図よりTI≧0.23g/de以上とすることによ
って捲縮加工糸の染着差が急激に減少することが明らか
である。
From this figure, it is clear that by setting TI≧0.23 g/de or more, the difference in dyeing of the crimped yarn is rapidly reduced.

しかしながら、高速紡糸により得られたポリエステル未
延伸糸(poy)でも従来汎用されている複屈折率0.
03程度のものを0.23 g/ d e以上の高張力
で加工すると毛羽が多発し、商品価値のある捲縮加工糸
が得られない。
However, even polyester undrawn yarn (poy) obtained by high-speed spinning has a birefringence of 0.
If a yarn of about 0.03 is processed at a high tension of 0.23 g/de or more, fluff will occur frequently and a crimped yarn with commercial value cannot be obtained.

しかるに複屈折率0.04以上(好ましくは0.045
〜0.070)のポリエステル未延伸糸は、0.23g
/de以上の高張力で加工しても毛羽発生が殆んどない
However, the birefringence is 0.04 or more (preferably 0.045
~0.070) polyester undrawn yarn weighs 0.23g
Even when processed under high tension of /de or higher, almost no fuzz occurs.

第3図は、複屈折率(△n)の異なるポリエチレンテレ
フタレート未延伸糸を仮撚スピンドル回転数50万rp
mで延伸同時仮撚加工したときの毛羽限界加工張力(即
ちこれ以上加工張力が大きくなると毛羽が多発し商品価
値を損う限界の加工張力)を示すグラフである。
Figure 3 shows undrawn polyethylene terephthalate yarns with different birefringence indexes (△n) being false-twisted at a spindle rotation speed of 500,000 rp.
2 is a graph showing the fuzzing limit processing tension (that is, the limit processing tension at which fluffing occurs frequently and the commercial value is impaired if the processing tension is increased beyond this value) when false twisting processing is carried out at the same time as drawing at m.

この第3図より未延伸糸の複屈折率(△n)が高ければ
高いほど高加工張力に耐えることができ、未延伸糸とし
て△n≧0.04のものを用い且つ△nに応じてTI≦
0.16+3.3△nであれば毛羽発生が無く良好な加
工調子で延伸同時仮撚加工ができることが明らかである
From FIG. 3, the higher the birefringence index (△n) of the undrawn yarn, the more it can withstand high processing tension. TI≦
It is clear that if the value is 0.16+3.3Δn, there will be no fuzz and false twisting can be performed at the same time as stretching with good processing conditions.

△n≧0.04の未延伸糸がかかる高張力での加工に耐
え得る理由は、このように配向の進んだ未延伸糸は、延
伸仮撚加工工程で撚固定ヒータに接触した後延伸が起る
までの間に結晶以が進み加工張力が大きくなるためと推
定される。
The reason why undrawn yarns with △n≧0.04 can withstand such high tension processing is that undrawn yarns with such advanced orientation are not stretched after coming into contact with the twist fixing heater in the drawing false twisting process. This is presumed to be because the crystallization progresses and the processing tension increases until this occurs.

撚固定ヒータの温度は195〜210℃の範囲が好まし
い。
The temperature of the twisted fixed heater is preferably in the range of 195 to 210°C.

該ヒータ温度が195℃より低いとヒータ上での予熱が
不十分となるため経時変化による染差異常が発生しやす
く、一方、210’Cより高いと△nの大きい未延伸糸
でも毛羽が発生しやすくなる。
If the heater temperature is lower than 195°C, preheating on the heater will be insufficient, and dye difference abnormalities will easily occur due to changes over time.On the other hand, if it is higher than 210'C, fluff will occur even in undrawn yarn with a large Δn. It becomes easier to do.

加工時の撚係数aは通常に用いられる条件即ち1.0≧
a≧0.85程度が好ましい。
The twist coefficient a during processing is under the normally used conditions, that is, 1.0≧
It is preferable that a≧0.85 or so.

また、延伸倍率は未延伸糸の△nに応じて加工張力(T
I)が前記範囲となり且つ捲縮加工糸の伸度が約20〜
35優になるように適宜選定すればよく、通常は1.2
〜1.6倍程度が適当である。
In addition, the drawing ratio depends on the processing tension (T
I) is within the above range and the elongation of the crimped yarn is approximately 20 to
It should be selected appropriately so that it is 35 Yu, usually 1.2
~1.6 times is appropriate.

なお、第1図の例は、延伸仮撚加工した糸条をそのまま
巻き取っているが延伸ローラを出た糸条をO〜30係程
度のオーバーフィード下で再熱処理した後巻取ってもよ
い。
In the example shown in Fig. 1, the drawn and false twisted yarn is wound up as is, but the yarn that has left the drawing roller may be reheated under overfeed of about 0 to 30 degrees and then wound up. .

一方、本発明で使用されるポリエステル未延伸糸は、ポ
リエチレンテレフタレート又はこれを主成分とする共重
合ポリエステルを高速紡糸して複屈折率を0.04以上
、好ましくは0.045〜0.070としたものである
が、該未延伸糸のフィラメント断面形状は通常の円形に
限らず、トライローバル、ヘキサローバル、オフクロー
バル等の非円形であってもよい。
On the other hand, the undrawn polyester yarn used in the present invention is made by spinning polyethylene terephthalate or a copolyester containing polyethylene terephthalate as a main component at high speed to have a birefringence of 0.04 or more, preferably 0.045 to 0.070. However, the cross-sectional shape of the filament of the undrawn yarn is not limited to the usual circular shape, but may be non-circular such as trilobal, hexalobal, and off-clobal.

また、未延伸糸のデニールは100〜300deが好ま
しいが、これに限定されない。
Further, the denier of the undrawn yarn is preferably 100 to 300 de, but is not limited thereto.

以上の如き本発明によれば、高速紡糸されたポリエステ
ル未延伸糸(POY)を仮撚スピンドル回転速度45万
rpm以上の高速で延伸同時仮撚加工する場合に問題と
なっていた未延伸糸の経時変化に起因する捲縮加工糸の
染着異常(濃染化)を解消することが出来、経時変化の
影響の少ない均一な品質の製品を得ることが可能となる
According to the present invention as described above, undrawn polyester yarn (POY) that has been spun at a high speed is subjected to drawing and simultaneous false twisting at a false twisting spindle rotation speed of 450,000 rpm or more. It is possible to eliminate dyeing abnormalities (deep dyeing) of crimped yarns caused by changes over time, and it is possible to obtain products with uniform quality that are less affected by changes over time.

次に、本発明の実施例を詳述する。Next, examples of the present invention will be described in detail.

なお、各実施例中における測定値は次の如き方法により
求めた値である。
In addition, the measured values in each example are values obtained by the following method.

囚 複屈折率(△n) Na光線を用いオリンパスPOM−If型偏光顕微鏡光
路にベレークコンベンセーターを挿入し、トリクレジル
フオスヘート中で測定した。
Birefringence (△n) Birefringence index (△n) was measured in a tricres phosphate using a Na light beam and inserting a Berek convensator into the optical path of an Olympus POM-If type polarizing microscope.

(B) 染着差(点) 比較する捲縮加工糸をメリヤス編物にしスコアロール≠
400.0.5g/l!溶比1:100にてQ’Cで2
0分間精練後染料としてイーストマンポリエステルブル
ーGLFを試料に対して6.0%加え溶比1:40にて
98℃で60分間染色した。
(B) Difference in dyeing (points) The crimped yarn to be compared is made into stockinette knitting and the score roll≠
400.0.5g/l! 2 at Q'C at melt ratio 1:100
After scouring for 0 minutes, 6.0% of Eastman Polyester Blue GLF was added to the sample as a dye and dyed at 98° C. for 60 minutes at a dissolution ratio of 1:40.

その後水洗乾燥して肉眼判定を行なった。Thereafter, it was washed with water, dried, and visually evaluated.

染着変化(点)は標準サンプルに対する染着差であり、
実用上の許容限界は0.4点である。
The dyeing change (point) is the dyeing difference with respect to the standard sample,
The practical allowable limit is 0.4 points.

(C) 毛羽数(コ/チーズ) 延伸仮撚加工糸3kg捲のパッケージに対して両端面の
毛羽本数を測定した。
(C) Number of fuzz (co/cheese) The number of fuzz on both end faces of a package wound with 3 kg of drawn and false twisted yarn was measured.

実用上3ケ以下ならば問題はない。In practice, there is no problem if the number is 3 or less.

(D)固有粘度〔η〕 0−クロロフェノール35℃溶液から求めた。(D) Intrinsic viscosity [η] It was determined from a 35°C solution of 0-chlorophenol.

実施例 1 〔η)=0.65のポリエチレンテレフタレートチップ
を用いて通常の紡糸方法にて230デニール/30フイ
ラメントになる如く紡糸引取速度3400m/分で溶融
紡糸し△n・0.046の未延伸糸を得た。
Example 1 Polyethylene terephthalate chips with [η) = 0.65 were melt-spun using a normal spinning method to obtain 230 denier/30 filaments at a spinning take-off speed of 3400 m/min, and undrawn with △n・0.046. Got the thread.

得られた未延伸糸をそれぞれ23℃×80係RH中に2
0日間及び40℃×50係RH中に20日間を経時させ
た。
The obtained undrawn yarns were heated at 23°C x 80% RH for 2 hours.
0 days and 20 days at 40°C x 50% RH.

両者の未延伸糸を仮撚スピンドル回転数50万rpmの
延伸同時仮撚加工機を用い、ヒータ温度195℃撚数2
590T / mにて種々の延伸倍率にて加工張力(T
I)を変化させて延伸同時仮撚加工し、両者について得
られた捲縮加工糸の染着差を比較した結果を第1表に示
す。
Both undrawn yarns were false-twisted using a stretching and simultaneous false-twisting machine with a spindle rotation speed of 500,000 rpm, and the number of twists was 2 at a heater temperature of 195°C.
Processing tension (T
Table 1 shows the results of comparing the difference in dyeing of the crimped yarns obtained by changing I) and simultaneously stretching and simultaneously false-twisting the yarns.

これより加工張力(TI)が0.2:Ill/d以上で
は経時変化による染着差が著しく減少することが判る。
It can be seen from this that when the processing tension (TI) is 0.2:Ill/d or more, the difference in dyeing due to changes over time is significantly reduced.

尚、一般的に採用されている加工張力は0.15〜0.
20 g/d eであり/161,2が従来の加工張力
を採用した例である。
The processing tension generally employed is 0.15 to 0.
20 g/d e and /161.2 is an example in which a conventional processing tension is adopted.

実施例 2 実施例1の紡糸方法にて、延伸同時仮撚加工後に150
デニール/30フイラメントになる如く紡糸引取速度2
000m/分、2500 m7分、3000 m7分、
3200m/分、3400 m7分、3600m/分、
4000m/分にて紡糸した。
Example 2 Using the spinning method of Example 1, after simultaneous stretching and false twisting, 150
Denier/30 filament spinning take-off speed 2
000m/min, 2500m7min, 3000m7min,
3200m/min, 3400m7min, 3600m/min,
Spinning was performed at 4000 m/min.

得られたポリエチレンテレフタレート未延伸糸を全て3
5℃X65SRH中に14日日間時させた後、実施例1
と同時な加工方法にて加工張力(T1)を約0.23,
9/dになる如くに延伸倍率を定めて延伸同時仮撚加工
した。
All the obtained polyethylene terephthalate undrawn yarns were
After aging in 5°C x 65SRH for 14 days, Example 1
Using the same processing method, the processing tension (T1) is approximately 0.23,
The stretching ratio was determined to be 9/d, and false twisting was performed at the same time as stretching.

未延伸糸の△nと得られた捲縮加工糸の毛羽数を第2表
に示す。
Table 2 shows Δn of the undrawn yarn and the number of fuzz of the obtained crimped yarn.

縛*これより△nが0.040以上であれば毛羽数より
加工張力0.26g/dに耐えることが判る。
* From this, it can be seen that if Δn is 0.040 or more, it can withstand a processing tension of 0.26 g/d based on the number of fluffs.

実施例 3 実施例2のポリエチレンテレツクレート未延伸糸のうち
、紡糸引取速度3200 m/分〜 く※4000
m/分のものについて実施例1と同様の延伸同時仮撚加
工条件にて加工張力を変化させて毛羽発生限界加工張力
を求めた。
Example 3 Among the polyethylene telescrate undrawn yarns of Example 2, the spinning take-off speed was 3200 m/min to 4000 m/min.
m/min. under the same stretching and simultaneous false twisting processing conditions as in Example 1, the processing tension was varied to determine the fuzz generation limit processing tension.

これより毛羽発生限界加工張力T I (j!/d )
と△nを求めるとT I =0.16+3.3△nとな
り、△nが0.04以上のものはT1≦0.16+3.
3△nであれば毛羽が発生しない。
From this, the fuzz generation limit processing tension T I (j!/d)
When Δn is calculated, T I =0.16+3.3Δn, and when Δn is 0.04 or more, T1≦0.16+3.
If 3Δn, fluff will not occur.

【図面の簡単な説明】 第1図は本発明の一実施態様を示す延伸仮撚加工装置の
概略図、第2図は経時変化の異なる2種のポリエステル
未延伸糸(POY)を延伸同時仮撚加工するときの加工
張力TIと捲縮加工糸の染着差との関係を示すグラフ、
第3図はポリエステル未延伸糸(POY)の△nと毛羽
限界加工張力との関係を示すグラフである。 第1図において、1は未延伸糸パッケージ、3は供給ロ
ーラ、4は撚固定ヒータ、5は仮撚スピンドル、6は延
伸ローラ、7はワインダーである。
[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a schematic diagram of a drawing/false twisting processing device showing one embodiment of the present invention, and Fig. 2 is a drawing and simultaneous drawing of two types of polyester undrawn yarns (POY) with different changes over time. A graph showing the relationship between processing tension TI during twisting and dyeing difference of crimped yarn,
FIG. 3 is a graph showing the relationship between Δn and fluffing limit processing tension of polyester undrawn yarn (POY). In FIG. 1, 1 is an undrawn yarn package, 3 is a supply roller, 4 is a twist fixing heater, 5 is a false twist spindle, 6 is a drawing roller, and 7 is a winder.

Claims (1)

【特許請求の範囲】 1 高速紡糸により得られたポリエステル未延伸糸を、
供給ローラと延伸ローラとの間に撚固定ヒータ及び仮撚
スピンドルを有する延伸仮撚加工機により、仮撚スピン
ドル回転数45万rp阻以上で延伸同時仮撚加工を行い
捲縮加工糸を製造するに際し、前記未延伸糸として複屈
折率(△n)0.04以上のものを用い、且つ、加工時
における仮撚スピンドル直前の糸条張力(TNi’/d
e)を、下記式 %式% 〔但し、△nは未延伸糸の複屈折率、T1は仮撚スピン
ドル直前の糸条張力(,9/d e )を示す〕の範囲
内に保持することを特徴とするポリエステル捲縮加工糸
の製造法。
[Claims] 1. Undrawn polyester yarn obtained by high-speed spinning,
Using a drawing false-twisting machine having a twist fixing heater and a false-twisting spindle between a supply roller and a drawing roller, the drawing and simultaneous false-twisting process is performed at a false-twisting spindle rotation speed of 450,000 rpm or more to produce a crimped yarn. In this case, the undrawn yarn should have a birefringence (△n) of 0.04 or more, and the yarn tension (TNi'/d) immediately before the false twist spindle during processing should be
e) to be kept within the range of the following formula % [where △n is the birefringence of the undrawn yarn, and T1 is the yarn tension (,9/d e ) immediately before the false twisting spindle]. A method for producing crimped polyester yarn characterized by:
JP14906175A 1975-12-16 1975-12-16 Polyester fiberglass Expired JPS5921971B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14906175A JPS5921971B2 (en) 1975-12-16 1975-12-16 Polyester fiberglass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14906175A JPS5921971B2 (en) 1975-12-16 1975-12-16 Polyester fiberglass

Publications (2)

Publication Number Publication Date
JPS5274023A JPS5274023A (en) 1977-06-21
JPS5921971B2 true JPS5921971B2 (en) 1984-05-23

Family

ID=15466806

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14906175A Expired JPS5921971B2 (en) 1975-12-16 1975-12-16 Polyester fiberglass

Country Status (1)

Country Link
JP (1) JPS5921971B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6253183U (en) * 1985-09-25 1987-04-02
JPS62144672U (en) * 1986-03-06 1987-09-11

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6253183U (en) * 1985-09-25 1987-04-02
JPS62144672U (en) * 1986-03-06 1987-09-11

Also Published As

Publication number Publication date
JPS5274023A (en) 1977-06-21

Similar Documents

Publication Publication Date Title
US4086751A (en) Process for producing a fused false twisted continuous filament yarn having crispness characteristics of hard high-twist yarn
US3956878A (en) High speed texturing
JPS584089B2 (en) Polyester Senino Seizouhouhou
JPS5921971B2 (en) Polyester fiberglass
JPH0680207B2 (en) Polyester thick yarn and method for producing the same
JPS5839925B2 (en) Method for manufacturing yarn for temporary twisting
JPS5921969B2 (en) False twist modification processing method for nylon 6 fibers
JPS5818445B2 (en) Polyester fiber manufacturing method
JP3430763B2 (en) Package of polyester multifilament for twisted splitting and manufacturing method thereof
JP2005154962A (en) False twist polyester yarn and method for producing the same
JP2004156159A (en) Method for producing ultrafine polyester false-twisted yarn
JPH10158943A (en) Production of composite yarns
KR800000069B1 (en) Method of preparing a polyester fiber
JPS61215730A (en) Production of polyester filament yarn
JPS5818455B2 (en) Manufacturing method of textured yarn
JPS63182431A (en) Production of polyester crimped processed yarn
JPH0424235A (en) Hard-twist polyester yarn and production thereof
JPS5817293B2 (en) Polyester Kenshiyukushino Seizouhou
JPH04333634A (en) Conjugate polyester yarn
JPH0380887B2 (en)
JPS59125904A (en) Manufacture of polyester multifilament for separation
JPS6065131A (en) Production of polyester false twisted yarn
JP2003201062A (en) Polyester multi-filament package and its manufacturing method
JPS58180624A (en) Covered elastic yarn and production thereof
JPS6143449B2 (en)