JPH0617312A - Direct spinning and drawing of polyester fiber - Google Patents
Direct spinning and drawing of polyester fiberInfo
- Publication number
- JPH0617312A JPH0617312A JP4191597A JP19159792A JPH0617312A JP H0617312 A JPH0617312 A JP H0617312A JP 4191597 A JP4191597 A JP 4191597A JP 19159792 A JP19159792 A JP 19159792A JP H0617312 A JPH0617312 A JP H0617312A
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- JP
- Japan
- Prior art keywords
- roller
- yarn
- take
- heating
- direct spinning
- 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.)
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- Artificial Filaments (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、均斉度に優れ、特に染
斑が少ないポリエステル繊維を操業性良く製造すること
のできる直接紡糸延伸法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a direct spinning / drawing method capable of producing polyester fibers having excellent uniformity and particularly less dyed spots with good operability.
【０００２】[0002]
【従来の技術】ポリエステル繊維を製造する方法とし
て、直接紡糸延伸法が広く採用されている。そして、衣
料用ポリエステル繊維を製造する場合、溶融紡出糸条に
水性油剤を付与し、加熱引き取りローラにより糸条をガ
ラス転移点以上に予熱して引き取り、引き取りローラと
延伸ローラとの間で延伸を行う方法が一般的である。こ
の場合、ガラス転移点以上まで糸条を予熱する際、油剤
水分の付着斑により糸条の受熱量が単糸間で異なり、単
糸切れ、ローラ巻き付き、延伸斑等が起こり易く、均一
な糸条が得られないという問題があった。2. Description of the Related Art As a method for producing polyester fibers, a direct spinning drawing method is widely adopted. Then, in the case of producing polyester fiber for clothing, an aqueous oil agent is applied to the melt spun yarn, and the yarn is preheated to a glass transition point or higher by a heating take-up roller and drawn, and drawn between the take-up roller and the drawing roller. The method is generally used. In this case, when the yarn is preheated to a temperature above the glass transition point, the amount of heat received by the yarn is different between single yarns due to the unevenness of adhesion of the oily agent, and single yarn breakage, roller winding, stretch unevenness, etc. are likely to occur and uniform yarns are obtained. There was a problem that the article could not be obtained.
【０００３】このような問題を解決する方法として、水
性油剤を付与した糸条を引き取りローラの上流で加圧流
体で処理し、糸条に交絡を付与するとともに水分を飛散
させて付着水分量を少なくする方法 (特公昭48− 43564
号、同56−9976号、特開昭59−130311号等) が提案され
ている。しかし、従来の方法では、水分が均一に飛散し
ないためか、十分均一で、染斑の少ない糸条は得られな
かった。As a method for solving such a problem, a yarn to which an aqueous oil agent is applied is treated with a pressurized fluid upstream of a take-up roller so that the yarn is entangled and the water is scattered to reduce the amount of attached water. How to reduce it (Japanese Patent Publication No.
No. 56-9976 and Japanese Patent Laid-Open No. 59-13031). However, with the conventional method, it is not possible to obtain a yarn that is sufficiently uniform and has less uneven dyeing, probably because the water is not evenly scattered.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、均斉度に優
れ、染斑の少ないポリエステル繊維を操業性良く製造す
ることのできるポリエステル繊維の直接紡糸延伸法を提
供しようとするものである。DISCLOSURE OF THE INVENTION The present invention is intended to provide a method for direct spinning and drawing a polyester fiber which has excellent uniformity and is capable of producing a polyester fiber having less uneven dyeing with good operability.
【０００５】[0005]
【課題を解決するための手段】本発明者らは、上記の課
題を解決するために鋭意検討の結果、加圧気体流による
処理条件を適切化することにより、この目的が達成され
ることを見出し、本発明に到達した。DISCLOSURE OF THE INVENTION As a result of intensive studies to solve the above-mentioned problems, the present inventors have found that this object can be achieved by optimizing the treatment conditions by a pressurized gas flow. Heading, arrived at the present invention.
【０００６】すなわち、本発明は、溶融紡出したポリエ
ステル繊維糸条を冷却し、水性油剤を付与した後、加熱
引き取りローラで引き取り、連続して加熱引き取りロー
ラと加熱延伸ローラとの間で延伸する直接紡糸延伸法に
おいて、加熱引き取りローラの上流で、糸条を温度50〜
150℃、圧力0.3〜3.0kg／cm2の加熱加圧気体流で処理
し、糸条水分率を3.0重量％以下とするとともに糸条に
0.5コ／ｍ以上の交絡を付与することを特徴とするポリ
エステル繊維の直接紡糸延伸法を要旨とするものであ
る。That is, according to the present invention, the melt spun polyester fiber yarn is cooled, an aqueous oil agent is applied thereto, and then taken up by a heating take-up roller, and continuously drawn between the heating take-up roller and the heating drawing roller. In the direct spinning and drawing method, the yarn is heated to a temperature of 50-
Treated with a heated and pressurized gas flow at 150 ° C and a pressure of 0.3 to 3.0 kg / cm 2 to reduce the moisture content of the yarn to 3.0% by weight or less
The gist is a direct spinning and drawing method of polyester fibers, which is characterized by imparting entanglement of 0.5 co / m or more.
【０００７】以下、本発明について詳細に説明する。本
発明においては、まず、常法によりポリエステルを溶融
紡糸し、紡出糸条に水性油剤を付与する。油剤としては
通常の水性油剤が使用されるが、比較的均一に付着させ
ることができ、操業性が良いことから、水分率80〜85％
程度のものが好ましい。The present invention will be described in detail below. In the present invention, first, a polyester is melt-spun by a conventional method, and an aqueous oil agent is applied to the spun yarn. A normal water-based oil is used as the oil, but the water content is 80-85% because it can be applied relatively uniformly and has good operability.
Something is preferable.
【０００８】次いで、油剤を付与した糸条を、温度50〜
150℃、圧力0.3〜3.0kg／cm2の加熱加圧気体流で処理
し、糸条水分率を3.0重量％以下とするとともに糸条に
0.5コ／ｍ以上の交絡を付与する。気体流の温度が50℃
未満であると、均一な水分除去が行われず、延伸が不均
一となり、繊度斑が発生して好ましくない。一方、気体
流の温度が 150℃を超えると糸条が低配向状態で結晶化
するため均一な延伸が行えず、単糸切れ及び染斑が発生
するため好ましくない。また、気体流の圧力が0.3kg／c
m2未満であると十分な交絡を付与することができず、糸
条の集束性が小さくなり、加熱ローラ上で糸条が開繊し
て揺れ動き、ローラ巻き付きや糸切れが多発する。一
方、気体流の圧力が3.0kg／cm2を超えると流体温度と流
体速度の相互作用により、未延伸糸条の伸長が部分的に
発生するため、不均一延伸となり、ループや毛羽が発現
して好ましくない。Then, the yarn to which the oil agent is applied is heated at a temperature of 50 to
Treated with a heated and pressurized gas flow at 150 ° C and a pressure of 0.3 to 3.0 kg / cm 2 to reduce the moisture content of the yarn to 3.0% by weight or less
Entangle 0.5 cores / m or more. Temperature of gas flow is 50 ℃
If it is less than this, uniform water removal cannot be carried out, the stretching becomes uneven, and unevenness in fineness occurs, which is not preferable. On the other hand, if the temperature of the gas flow exceeds 150 ° C., the yarn is crystallized in a low orientation state, so uniform drawing cannot be performed, and single yarn breakage and uneven dyeing occur, which is not preferable. Also, the gas flow pressure is 0.3 kg / c
If it is less than m 2 , sufficient entanglement cannot be imparted, the yarn converging property becomes small, the yarn opens and shakes on the heating roller, and roller winding and yarn breakage frequently occur. On the other hand, when the pressure of the gas flow exceeds 3.0 kg / cm 2 , the elongation of the unstretched yarn partially occurs due to the interaction between the fluid temperature and the fluid velocity, resulting in uneven stretching, and loops and fluff appear. Is not preferable.
【０００９】糸条の水分率及び交絡度の調整は、気体流
の温度と圧力を上記の範囲内で調節することにより行わ
れる。糸条の水分率が 3.0重量％を超えていると、付着
斑が解消されていないため均一延伸ができず、染斑が発
生して好ましくない。また、糸条の交絡度が 0.5コ／ｍ
未満であると、加熱引き取りローラ上で糸条が開繊した
り、糸条間接触を起こしたりして糸切れが多発するため
好ましくない。The water content and the degree of entanglement of the yarn are adjusted by adjusting the temperature and pressure of the gas flow within the above range. If the moisture content of the yarn exceeds 3.0% by weight, the uneven adhesion is not eliminated and uniform stretching cannot be performed, and uneven dyeing occurs, which is not preferable. In addition, the degree of entanglement of yarn is 0.5 k / m
If it is less than the above range, the yarns are opened on the heating take-up roller, or the yarns come into contact with each other, which often causes yarn breakage, which is not preferable.
【００１０】なお、加熱加圧気体としては、操業上コス
ト及び安全性の点で空気を用いるのが好ましく、加熱加
圧気体流処理器としては、装置の小型化が図れる点で交
絡処理ノズルを用いるのが好ましい。It is preferable to use air as the heating and pressurizing gas from the viewpoint of operation cost and safety, and as the heating and pressurizing gas flow treatment device, an entanglement treatment nozzle can be used in view of downsizing of the device. It is preferably used.
【００１１】図１は、本発明の方法の一実施態様を示す
概略工程図であり、２本の糸条を同時に製糸する例を示
している。紡糸口金１から吐出された糸条２は、冷却装
置３により冷却されて固化した後、油剤付与装置４で集
束されながら水性油剤が付与され、次いで、加熱加圧気
体流処理器５で処理された後、加熱引き取りローラ６で
引き取られる。加熱気体流により糸条を構成する単糸が
マイグレーションし、糸条の水分率が低下するとともに
糸条に交絡が付与される。続いて、糸条２は加熱引き取
りローラ６と分離ローラ７に数回巻回され、延伸に必要
な温度に加熱された後、加熱延伸ローラ８と分離ローラ
９に導かれて数回巻回され、加熱引き取りローラ６と加
熱延伸ローラ８との間で所定の延伸倍率で延伸される。
延伸された糸条は、次いでガイド10及び11を経て、巻き
取りローラ12によりパッケージ13として巻き取られる。
なお、必要に応じて、加熱延伸ローラ８と巻き取りロー
ラ12との間に交絡処理装置を設け、さらに交絡を付与し
てもよい。FIG. 1 is a schematic process diagram showing one embodiment of the method of the present invention, and shows an example of simultaneously producing two yarns. The yarn 2 discharged from the spinneret 1 is cooled by a cooling device 3 and solidified, and then an aqueous oil agent is applied while being focused by an oil agent applying device 4, and then treated by a heating / pressurizing gas flow processor 5. After that, it is taken up by the heating take-up roller 6. The heated gas flow migrates the single yarn forming the yarn, lowers the moisture content of the yarn, and imparts entanglement to the yarn. Subsequently, the yarn 2 is wound around the heating take-up roller 6 and the separation roller 7 several times, heated to a temperature necessary for stretching, and then guided to the heating stretching roller 8 and the separation roller 9 and wound several times. The film is drawn between the heating take-up roller 6 and the heating drawing roller 8 at a predetermined drawing ratio.
The stretched yarn then passes through guides 10 and 11 and is wound into a package 13 by a winding roller 12.
If necessary, an entanglement treatment device may be provided between the heating and stretching roller 8 and the take-up roller 12 to further provide entanglement.
【００１２】[0012]
【作用】本発明によって、糸条の均斉度が向上し、染斑
が解消される理由は明かではないが、紡出糸条が加熱加
圧気体流で予熱され、紡出糸条の歪が緩和されるととも
に紡出糸条の水分率が少なく、均一化されることにより
延伸時に加熱ローラから受ける熱量が糸条の単糸間で均
一化されるために、延伸も均一化されるためと認められ
る。また、本発明によれば、延伸前に糸条に適度の交絡
が付与されるため、加熱ローラ上で糸条が開繊して揺れ
動いたり、ローラ巻き付きや糸切れが発生することがな
く、操業性が良好となる。According to the present invention, the reason why the evenness of the yarn is improved and the uneven dyeing is eliminated is not clear. However, the spun yarn is preheated by a heated and pressurized gas flow, and the strain of the spun yarn is The moisture content of the spun yarn is low, and the heat amount received from the heating roller at the time of drawing is made uniform among the single yarns of the yarn by being made uniform, and the drawing is also made uniform. Is recognized. Further, according to the present invention, since a proper entanglement is imparted to the yarn before stretching, the yarn does not open and sway on the heating roller, and the roller winding and the yarn breakage do not occur, and the operation is performed. The property becomes good.
【００１３】[0013]
【実施例】次に、本発明を実施例によって具体的に説明
する。なお、実施例における特性値等の測定及び評価は
次のようにして行った。 (a) 極限粘度〔η〕 フェノールと四塩化エタンとの等重量混合物を溶媒とし
て、温度20.0℃で測定した。 (b) 付着水分率 図１の装置で製糸する際に、ローラ６及び８を加熱せ
ず、かつ、両ローラの速度を同一にして巻き取ってサン
プリングし、JIS L 1073に準じて測定した。 (c) 交絡度 付着水分率測定用サンプルと同様にしてサンプリング
し、糸条に0.05ｇ／ｄの荷重をかけ、長さ１ｍの試料の
うちに単糸の損傷なしに、糸条が単糸相互に分離しない
点の数を測定した。 (10コの試料についての平均値で示
す。) (d) 糸切れ 紡糸時間100時間当たりの糸切れ回数をカウントした。 (e) ループ及び毛羽 視覚判定により６kg捲きチーズのループ及び毛羽をカウ
ントして、次の３段階で等級付を行った。 ○：ループ及び毛羽の発生が０〜１個 △：ループ及び毛羽の発生が２〜４個 ×：ループ及び毛羽の発生が５個以上 (f) 染斑 視覚判定により標準サンプルと対比して１〜５級の等級
付を行った。（１級は最も染斑が多く、５級は最も染斑
が少ないことを示す。）EXAMPLES Next, the present invention will be specifically described with reference to examples. The measurement and evaluation of characteristic values and the like in the examples were performed as follows. (a) Intrinsic viscosity [η] It was measured at a temperature of 20.0 ° C using an equal weight mixture of phenol and ethane tetrachloride as a solvent. (b) Adhesion Moisture Content When the yarn was produced by the device shown in FIG. 1, the rollers 6 and 8 were not heated, and both rollers were wound at the same speed, sampled, and measured according to JIS L 1073. (c) Degree of entanglement Sampling was carried out in the same manner as the sample for measuring the adhered water content, a load of 0.05 g / d was applied to the yarn, and the yarn was single yarn without damage to the single yarn in the sample of 1 m in length. The number of points that were not separated from each other was measured. (Indicated as an average value for 10 samples.) (D) Yarn break The number of yarn breaks per 100 hours of spinning time was counted. (e) Loops and fluff The loops and fluffs of 6 kg rolled cheese were counted by visual judgment, and graded in the following three stages. ◯: Occurrence of loops and fluffs is 0 to 1 △: Occurrence of loops and fluffs is 2 to 4 ×: Occurrence of loops and fluffs is 5 or more (f) Dye spots 1 compared with a standard sample by visual judgment A grade of ~ 5 was applied. (1st grade shows the most stains, and 5th grade shows the least stains.)
【００１４】また、実施例及び比較例で用いた油剤は、
鉱物油30重量％、脂肪酸エステル45重量％、アニオン界
面活性剤10重量％、ノニオン界面活性剤10重量％及び調
整剤５重量％からなる組成物を濃度16重量％の水エマル
ジョンとしたもので、糸条へは、付着量が 1.3重量％
(油分 0.8重量％、水分 0.5重量％) となるように付与
した。The oil agents used in the examples and comparative examples are
A composition comprising 30% by weight of mineral oil, 45% by weight of fatty acid ester, 10% by weight of anionic surfactant, 10% by weight of nonionic surfactant and 5% by weight of a modifier in a water emulsion having a concentration of 16% by weight, 1.3% by weight adhered to the yarn
(Oil content was 0.8% by weight, water content was 0.5% by weight).
【００１５】実施例１ 〔η〕0.68のポリエチレンテレフタレートを 290℃で溶
融して、孔径0.25mmのノズルを36孔有する紡糸口金から
吐出し、室温の空気を吹き付けて冷却固化させ、紡出糸
条に計量オイリング装置により油剤を付与した。引き続
いて、温度 120℃、圧力 1.5kg／cm2 の加熱加圧空気流
で処理し、次いで、90℃に加熱された引き取りローラに
より1400ｍ／分の速度で引き取り、加熱引き取りローラ
と 130℃に加熱された4200ｍ／分の速度で回転する延伸
ローラとの間で 3.0倍に延伸、熱処理し、巻き取った。
得られた延伸後の糸条は、繊度73.5ｄ、強度4.95ｇ／
ｄ、伸度34.7％、沸水収縮率 7.2％であった。得られた
延伸糸は、ループや毛羽がなく、これをメリヤス編みに
して染色し、染斑の判定を行ったところ、染斑もなかっ
た。Example 1 Polyethylene terephthalate of [η] 0.68 was melted at 290 ° C., discharged from a spinneret having 36 nozzles having a hole diameter of 0.25 mm, and air at room temperature was blown to cool and solidify the spun yarn. The oil solution was applied to the sample by a measuring oiling device. Subsequently, it was treated with a heated pressurized air stream at a temperature of 120 ° C and a pressure of 1.5 kg / cm 2 , and then it was drawn by a take-up roller heated to 90 ° C at a speed of 1400 m / min, and heated to 130 ° C with a heated take-up roller. The film was stretched 3.0 times with the stretching roller rotating at a speed of 4200 m / min, heat-treated and wound.
The obtained drawn yarn has a fineness of 73.5d and a strength of 4.95g /
d, elongation 34.7%, boiling water shrinkage 7.2%. The drawn yarn obtained did not have loops or fluff, and when this was knitted by knitting and dyed to determine the dye spots, there was no dye spots.
【００１６】実施例２〜７ 実施例１において、加熱加圧空気流の温度及び圧力を変
更して糸条水分率及び交絡度を変えた以外は実施例１と
同様に実施した。なお、加熱加圧空気流処理条件変更に
伴い、加熱引き取りローラ温度を予め50〜150 ℃の範囲
で変更し、毛羽カウンターで30分間測定して、最も毛羽
発生の少ない温度条件を選んだ。得られた延伸糸は、す
べて繊度：73±2.2 ｄ、強度：4.60ｇ／ｄ以上、伸度：
33±3 ％、沸水収縮率：７±1.0 ％の範囲であった。Examples 2 to 7 The procedure of Example 1 was repeated, except that the temperature and pressure of the heated and pressurized air stream were changed to change the yarn moisture content and the degree of entanglement. The temperature of the heating and taking-off roller was changed in advance in the range of 50 to 150 ° C. along with the change in the heating and pressurizing airflow treatment condition, and the temperature was measured with a fluff counter for 30 minutes to select the temperature condition with the least fluff generation. The drawn yarns obtained were all fineness: 73 ± 2.2 d, strength: 4.60 g / d or more, elongation:
33 ± 3%, boiling water shrinkage: 7 ± 1.0%.
【００１７】比較例１〜６ 加熱加圧空気流の温度及び圧力を表１に示したように変
更した以外は、実施例１〜７と同様に実施した。上記実
施例及び比較例の結果を表１に示す。Comparative Examples 1 to 6 Comparative Examples 1 to 6 were carried out in the same manner as in Examples 1 to 7 except that the temperature and pressure of the pressurized air flow were changed as shown in Table 1. The results of the above Examples and Comparative Examples are shown in Table 1.
【００１８】[0018]
【表１】 [Table 1]
【００１９】[0019]
【発明の効果】本発明によれば、均斉度に優れ、染斑の
少ないポリエステル繊維を操業性良く製造することがで
きる。Industrial Applicability According to the present invention, it is possible to produce a polyester fiber having excellent uniformity and less uneven dyeing with good operability.
【図１】本発明の一実施態様を示す概略工程図である。FIG. 1 is a schematic process diagram showing an embodiment of the present invention.
【符号の説明】 1 紡糸口金 2 糸条 3 冷却装置 4 油剤付与装置 5 加熱加圧気体流処理器 6 加熱引き取りローラ 8 加熱延伸ローラ[Explanation of symbols] 1 Spinneret 2 Thread 3 Cooling device 4 Oil agent applying device 5 Heated pressurized gas flow processor 6 Heated take-up roller 8 Heated drawing roller
Claims (1)
却し、水性油剤を付与した後、加熱引き取りローラで引
き取り、連続して加熱引き取りローラと加熱延伸ローラ
との間で延伸する直接紡糸延伸法において、加熱引き取
りローラの上流で、糸条を温度50〜150℃、圧力0.3〜3.
0kg／cm2の加熱加圧気体流で処理し、糸条水分率を3.0
重量％以下とするとともに糸条に0.5コ／ｍ以上の交絡
を付与することを特徴とするポリエステル繊維の直接紡
糸延伸法。1. A direct spinning / drawing method in which a melt-spun polyester fiber yarn is cooled, an aqueous oil agent is applied thereto, and then taken up by a heating take-up roller and continuously drawn between a heating take-up roller and a heating draw roller. In the upstream of the heating take-up roller, the yarn temperature is 50 to 150 ° C and the pressure is 0.3 to 3.
Treated with a heated pressurized gas flow of 0 kg / cm 2 , and the yarn moisture content is 3.0.
A method for direct spinning and drawing polyester fibers, which comprises not more than 10% by weight and imparts entanglement of 0.5 k / m or more to the yarn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4191597A JPH0617312A (en) | 1992-06-25 | 1992-06-25 | Direct spinning and drawing of polyester fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4191597A JPH0617312A (en) | 1992-06-25 | 1992-06-25 | Direct spinning and drawing of polyester fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0617312A true JPH0617312A (en) | 1994-01-25 |
Family
ID=16277290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4191597A Pending JPH0617312A (en) | 1992-06-25 | 1992-06-25 | Direct spinning and drawing of polyester fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0617312A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002201528A (en) * | 2000-12-26 | 2002-07-19 | Nippon Ester Co Ltd | Method for spinning and direct drawing of polyester multifilament yarn |
| WO2008009221A1 (en) * | 2006-07-14 | 2008-01-24 | Yingzhi Lv | A process for producing crimped polyester filament by winding the filament round heated roll and a device thereof |
| CN102383209A (en) * | 2011-06-15 | 2012-03-21 | 大连合成纤维研究设计院股份有限公司 | One-step process for producing high-tenacity untwisted polyester monofilaments |
| DE102013219584A1 (en) | 2012-09-28 | 2014-04-03 | Takemoto Yushi K.K. | Method for manufacturing fully-stretched yarns using melt-spinning device, involves applying processing liquid to yarns such that processing agent is dispersed in water by emulsion, and stretching of yarns by heating roller |
| WO2019176892A1 (en) | 2018-03-13 | 2019-09-19 | 竹本油脂株式会社 | Diluted solution of synthetic fiber treatment agent, and method for manufacturing synthetic fibers |
| CN110644064A (en) * | 2018-06-26 | 2020-01-03 | 欧瑞康纺织有限及两合公司 | Multifilament conditioning method |
-
1992
- 1992-06-25 JP JP4191597A patent/JPH0617312A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002201528A (en) * | 2000-12-26 | 2002-07-19 | Nippon Ester Co Ltd | Method for spinning and direct drawing of polyester multifilament yarn |
| JP4596503B2 (en) * | 2000-12-26 | 2010-12-08 | 日本エステル株式会社 | Direct spinning method of polyester multifilament |
| WO2008009221A1 (en) * | 2006-07-14 | 2008-01-24 | Yingzhi Lv | A process for producing crimped polyester filament by winding the filament round heated roll and a device thereof |
| CN102383209A (en) * | 2011-06-15 | 2012-03-21 | 大连合成纤维研究设计院股份有限公司 | One-step process for producing high-tenacity untwisted polyester monofilaments |
| DE102013219584A1 (en) | 2012-09-28 | 2014-04-03 | Takemoto Yushi K.K. | Method for manufacturing fully-stretched yarns using melt-spinning device, involves applying processing liquid to yarns such that processing agent is dispersed in water by emulsion, and stretching of yarns by heating roller |
| WO2019176892A1 (en) | 2018-03-13 | 2019-09-19 | 竹本油脂株式会社 | Diluted solution of synthetic fiber treatment agent, and method for manufacturing synthetic fibers |
| KR20200029604A (en) | 2018-03-13 | 2020-03-18 | 다케모토 유시 가부시키 가이샤 | Dilution of synthetic fiber treatment agent and method for producing synthetic fiber |
| CN110644064A (en) * | 2018-06-26 | 2020-01-03 | 欧瑞康纺织有限及两合公司 | Multifilament conditioning method |
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