JPH08246236A - Polyester fiber - Google Patents
Polyester fiberInfo
- Publication number
- JPH08246236A JPH08246236A JP4728995A JP4728995A JPH08246236A JP H08246236 A JPH08246236 A JP H08246236A JP 4728995 A JP4728995 A JP 4728995A JP 4728995 A JP4728995 A JP 4728995A JP H08246236 A JPH08246236 A JP H08246236A
- Authority
- JP
- Japan
- Prior art keywords
- polyester fiber
- heat shrinkage
- roller
- dry heat
- resin
- 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.)
- Pending
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 72
- 229920000728 polyester Polymers 0.000 title claims abstract description 62
- 229920005989 resin Polymers 0.000 claims abstract description 28
- 239000011347 resin Substances 0.000 claims abstract description 28
- 239000004744 fabric Substances 0.000 claims description 18
- -1 polyethylene terephthalate Polymers 0.000 claims description 10
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 9
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 3
- 238000006116 polymerization reaction Methods 0.000 abstract description 2
- 230000002411 adverse Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 20
- 238000000576 coating method Methods 0.000 description 13
- 239000011248 coating agent Substances 0.000 description 12
- 238000009998 heat setting Methods 0.000 description 7
- 230000037303 wrinkles Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- 238000009987 spinning Methods 0.000 description 3
- 239000002759 woven fabric Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 230000000877 morphologic effect Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- ARCGXLSVLAOJQL-UHFFFAOYSA-N trimellitic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C(C(O)=O)=C1 ARCGXLSVLAOJQL-UHFFFAOYSA-N 0.000 description 2
- PXGZQGDTEZPERC-UHFFFAOYSA-N 1,4-cyclohexanedicarboxylic acid Chemical compound OC(=O)C1CCC(C(O)=O)CC1 PXGZQGDTEZPERC-UHFFFAOYSA-N 0.000 description 1
- ISPYQTSUDJAMAB-UHFFFAOYSA-N 2-chlorophenol Chemical compound OC1=CC=CC=C1Cl ISPYQTSUDJAMAB-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- YIMQCDZDWXUDCA-UHFFFAOYSA-N [4-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1CCC(CO)CC1 YIMQCDZDWXUDCA-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- PMMYEEVYMWASQN-IMJSIDKUSA-N cis-4-Hydroxy-L-proline Chemical compound O[C@@H]1CN[C@H](C(O)=O)C1 PMMYEEVYMWASQN-IMJSIDKUSA-N 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 238000010036 direct spinning Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Landscapes
- Artificial Filaments (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、高強度、高伸度及び低
熱収縮率を有し、さらに熱収縮特性の温度依存性が小さ
く、特に樹脂被覆布帛用途などに好適なポリエステル繊
維に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polyester fiber which has high strength, high elongation and low heat shrinkage, and has little temperature dependence of heat shrinkage property, and is particularly suitable for resin coated cloth applications. is there.
【０００２】[0002]
【従来の技術】ポリエチレンテレフタレートを主成分と
してなるポリエステル繊維は、種々の優れた特性を有す
ることから、衣料用途のみならず、産業用途にも広く使
用されている。2. Description of the Related Art Polyester fibers containing polyethylene terephthalate as a main component have various excellent properties and are widely used not only for clothing but also for industrial applications.
【０００３】ポリエステル繊維が産業用途に用いられる
場合、一般に最も重要視される特性は機械的特性、すな
わちその強度及び伸度が大きいことである。このポリエ
ステル繊維は、その具体的用途によっては、製品に加工
される工程あるいは製品に加工されて使用される時にお
いて熱が加わる場合がある。このような場合には、工程
の通過性を高めるためや製品の安定性を確保するため
に、ポリエステル繊維の寸法が熱的に安定であること、
すなわち加熱時の収縮率（乾熱収縮率）が小さいことが
さらに要求される。When polyester fibers are used in industrial applications, the properties which are generally regarded as the most important are their mechanical properties, that is, their strength and elongation. Depending on the specific application, this polyester fiber may be heated when it is processed into a product or used after being processed into a product. In such a case, the dimensions of the polyester fiber are thermally stable in order to enhance the process passability and ensure the stability of the product,
That is, it is further required that the shrinkage rate during heating (dry heat shrinkage rate) is small.
【０００４】例えば、樹脂被覆布帛用途に用いる場合に
は、ポリ塩化ビニルやゴムなどが高温で布帛上にコーテ
ィングされるため、ポリエステル繊維の熱収縮率が大き
いとコーティング時の形態安定性が悪く、コーティング
を行なうことが困難である。そこで、コーティング時の
布帛の形態を安定させるために、コーティング前の布帛
を予め熱セットする方法もあるが、工程増から工業的実
施には好ましいものでなかった。For example, when used for resin-coated cloth, polyvinyl chloride, rubber, etc. are coated on the cloth at a high temperature. Therefore, if the polyester fiber has a large heat shrinkage, the morphological stability during coating becomes poor, Difficult to coat. Therefore, in order to stabilize the morphology of the cloth at the time of coating, there is also a method of heat-setting the cloth before coating in advance, but it is not preferable for industrial practice because of the increased number of steps.
【０００５】かかる高強度、高伸度と、低乾熱収縮率と
を併せ持つポリエステル繊維を製造する方法は、例え
ば、特公昭５８−５１５２４号公報、特開平２−２５１
６１０号公報、特公昭５７−３８８号公報などで提案さ
れている。A method for producing a polyester fiber having both high strength, high elongation and low dry heat shrinkage is described in, for example, Japanese Examined Patent Publication No. 58-51524 and JP-A 2-251.
No. 610 and Japanese Patent Publication No. 57-388.
【０００６】特公昭５８−５１５２４号公報には、紡出
した糸条を高温の延伸ローラーによって延伸し、さらに
高温の加熱ローラー上に長時間糸条を接触させることに
よって熱固定を強化することによってポリエステル繊維
の低収縮化を図る方法が記載されている。また、特開平
２−２５１６１０号公報には、熱固定ローラーに補助的
な熱源を設けることでさらに糸条への熱付与を効率的に
し、低収縮のポリエステル繊維が得られることが記載さ
れている。In Japanese Patent Publication No. 58-51524, the spun yarn is stretched by a high-temperature drawing roller, and the heat setting is strengthened by contacting the yarn on a high-temperature heating roller for a long time. A method for reducing the shrinkage of polyester fibers is described. Further, JP-A-2-251610 describes that a heat-fixing roller is provided with an auxiliary heat source to further efficiently apply heat to the yarn and obtain a polyester fiber having low shrinkage. .
【０００７】これらの方法は、いずれも、通常の産業用
繊維の製造プロセスである紡糸直接延伸プロセスにおい
て、最終延伸段ローラー（熱固定ローラー）周回時の繊
維への熱付与を強化し、熱による繊維の構造固定を進め
ることによって熱収縮率の小さい繊維を得ようとするも
のである。[0007] In all of these methods, in the spinning direct drawing process, which is a usual industrial fiber manufacturing process, the heat application to the fiber at the time of the final drawing stage roller (heat fixing roller) circulation is enhanced and It is intended to obtain fibers having a small heat shrinkage by advancing the structural fixing of the fibers.
【０００８】また、特公昭５７−３８８号公報には、重
合度を低くすることにより、ポリエステル繊維の乾熱収
縮率を抑え、熱セットなしに樹脂被覆布帛を得る方法が
記載されている。この方法によって得られるポリエステ
ル繊維は、その乾熱収縮率だけをとってみれば熱セット
なしで樹脂被覆用途に使用することができるものであ
る。Further, Japanese Patent Publication No. 57-388 discloses a method of obtaining a resin-coated cloth without heat setting by suppressing the dry heat shrinkage of the polyester fiber by lowering the degree of polymerization. The polyester fiber obtained by this method can be used for resin coating without heat setting if only its dry heat shrinkage is taken.
【０００９】[0009]
【発明が解決しようとする課題】前二者の従来方法によ
ると熱収縮率を小さくすることはできるものの、得られ
たポリエステル繊維の乾熱収縮率は熱セットなしで樹脂
被覆用途に使用するには依然として大きく、十分な収縮
率低減効果は得難いものであった。According to the former two methods, the heat shrinkage can be reduced, but the dry heat shrinkage of the obtained polyester fiber is not suitable for use in resin coating without heat setting. Was still large, and it was difficult to obtain a sufficient shrinkage reduction effect.
【００１０】また、後者の従来方法によって得られたポ
リエステル繊維を使用した場合においても、高温で樹脂
を被覆する際の処理温度が変化したり処理温度にむらを
生じた場合には収縮むらが発生し、製品の品位を損うこ
とが多いという点で工業的に満足できるものではなかっ
た。Even when the polyester fiber obtained by the latter conventional method is used, shrinkage unevenness occurs when the processing temperature at the time of coating the resin at a high temperature changes or the processing temperature becomes uneven. However, it is not industrially satisfactory in that the quality of the product is often impaired.
【００１１】そこで、本発明は、上記のような従来技術
の欠点を解消し、高強度、高伸度という優れた機械的特
性と、低い乾熱収縮率とを併せ持ち、さらに加熱加工時
における温度むらに対しても優れた形態安定性を持ち、
樹脂被覆布帛などの用途に安定かつ好適に使用できるポ
リエステル繊維を提供することを主な目的とする。Therefore, the present invention solves the above-mentioned drawbacks of the prior art, has both excellent mechanical properties such as high strength and high elongation, and a low dry heat shrinkage ratio, and further has a temperature during heat processing. It has excellent morphological stability against unevenness,
The main object of the present invention is to provide a polyester fiber that can be stably and suitably used for applications such as resin-coated cloth.
【００１２】[0012]
【課題を解決するための手段】この目的を達成するた
め、本発明のポリエステル繊維は、固有粘度が０．６〜
０．８のポリエチレンテレフタレートを主成分としてな
るポリエステル繊維であって、強度が７．１ｇ／ｄ以
上、伸度が１８％以上、１５０℃における乾熱収縮率が
２．８％以下、かつ、２１０℃における乾熱収縮応力
（ＤＳ210 ）と１４０℃における乾熱収縮応力（ＤＳ14
0 ）との比（ＤＳ210 ／ＤＳ140 ）が１．１５未満であ
ることを特徴とする。To achieve this object, the polyester fiber of the present invention has an intrinsic viscosity of 0.6 to 0.6.
A polyester fiber comprising 0.8 of polyethylene terephthalate as a main component, having a strength of 7.1 g / d or more, an elongation of 18% or more, a dry heat shrinkage ratio at 150 ° C. of 2.8% or less, and 210 Dry heat shrinkage stress at 40 ℃ (DS210) and dry heat shrinkage stress at 140 ℃ (DS14)
The ratio (DS210 / DS140) with respect to 0) is less than 1.15.
【００１３】即ち、熱セットを施していないポリエステ
ル繊維製織布に、安定して樹脂被覆を行なうためには、
乾熱収縮率が小さいこととともに、乾熱収縮特性の温度
依存性が小さいことが重要であることを見出し、本発明
をなすに至ったものである。以下、本発明のポリエステ
ル繊維について説明する。That is, in order to stably coat the resin on the polyester fiber woven fabric which has not been heat set,
The present inventors have found that it is important that the dry heat shrinkage rate is small and the temperature dependence of the dry heat shrinkage property is important, and the present invention has been completed. Hereinafter, the polyester fiber of the present invention will be described.
【００１４】本発明のポリエステル繊維をなすポリマ
は、ポリエチレンテレフタレートを主成分とするもので
あるが、その一部に、酸成分としてイソフタル酸、アジ
ピン酸、セバシン酸、ダイマー酸、２，６−ナフタレン
ジカルボン酸、１，４−シクロヘキサンジカルボン酸な
どを、またジオール成分としてジエチレングリコール、
ネオペンチルグリコール、１，４−シクロヘキサンジオ
ール、１，４−シクロヘキサンジメタノール、およびポ
リアルキレングリコールなどを少量使用してもよく、さ
らにペンタエリスリトール、トリメチロールプロパン、
トリメリット酸、トリノシン酸などを使用して少量の分
岐を持たせてもよい。The polymer constituting the polyester fiber of the present invention contains polyethylene terephthalate as a main component, and a part thereof is isophthalic acid, adipic acid, sebacic acid, dimer acid, 2,6-naphthalene as an acid component. Dicarboxylic acid, 1,4-cyclohexanedicarboxylic acid and the like, and diethylene glycol as a diol component,
A small amount of neopentyl glycol, 1,4-cyclohexanediol, 1,4-cyclohexanedimethanol, polyalkylene glycol and the like may be used, and further pentaerythritol, trimethylolpropane,
A small amount of branching may be provided by using trimellitic acid or trinosinic acid.
【００１５】このポリエステル繊維には、酸化チタン、
酸化ケイ素、炭酸カルシウムなどの無機物が含有れてい
てもよく、その他に、耐候剤や抗酸化剤、さらには着色
のための各種顏料、染料が含有されていてもよい。This polyester fiber contains titanium oxide,
Inorganic substances such as silicon oxide and calcium carbonate may be contained, and in addition, weathering agents and antioxidants, and various fillers and dyes for coloring may be contained.
【００１６】また、本発明のポリエステル繊維は、その
固有粘度が０．６以上、０．８以下であることが必須で
あり、好ましくは０．６２以上０．７５以下である。ポ
リエステル繊維の固有粘度が０．６よりも小さい場合に
は、良好な強伸度積が得られにくく、固有粘度が０．８
よりも大きい場合には低い乾熱収縮率が得られにくいの
で、本発明の所期の目的が達成できない。It is essential that the polyester fiber of the present invention has an intrinsic viscosity of 0.6 or more and 0.8 or less, preferably 0.62 or more and 0.75 or less. When the intrinsic viscosity of the polyester fiber is less than 0.6, it is difficult to obtain a good elongation product, and the intrinsic viscosity is 0.8.
If it is larger than the above range, it is difficult to obtain a low dry heat shrinkage ratio, so that the intended purpose of the present invention cannot be achieved.
【００１７】さらに、本発明のポリエステル繊維は、そ
の強度、伸度がそれぞれ７．１ｇ／ｄ以上、１８％以上
であることが必須であり、好ましくはそれぞれ７．３ｇ
／ｄ以上、１９％以上である。強度が７．１ｇ／ｄに満
たない場合には、必要な強力を得るために使用する繊維
量が多くなり過ぎ、コスト面および布帛状物に加工した
際の重量が大きくなり過ぎるので実用上不適当である。
また、伸度が１８％未満であると、加工時及び使用時に
破断が生じ安いので実用上不適当である。Further, it is essential that the strength and the elongation of the polyester fiber of the present invention are 7.1 g / d and 18%, respectively, and preferably 7.3 g.
/ D or more and 19% or more. If the strength is less than 7.1 g / d, the amount of fibers used to obtain the required strength will be too large, and the cost and the weight when processed into a fabric-like material will be too large, which is not practical. Appropriate.
Further, if the elongation is less than 18%, breakage easily occurs during processing and during use, which is not suitable for practical use.
【００１８】本発明のポリエステル繊維は、さらに、１
５０℃における乾熱収縮率が２．８％以下であることが
必須であり、好ましくは２．６％以下である。１５０℃
における乾熱収縮率が、２．８％よりも大きい場合に
は、製織後の熱コーティングなどの工程通過性が悪く、
またコーティング後の品位も劣ったものとなるので不適
当である。The polyester fiber of the present invention further comprises 1
It is essential that the dry heat shrinkage ratio at 50 ° C. is 2.8% or less, and preferably 2.6% or less. 150 ° C
In the case where the dry heat shrinkage ratio in is greater than 2.8%, the process passability such as thermal coating after weaving is poor,
In addition, the quality after coating is inferior, which is unsuitable.
【００１９】さらに、本発明のポリエステル繊維におい
て最も重要なことは、２１０℃における乾熱収縮応力
（ＤＳ210 ）が、１４０℃における乾熱収縮応力（ＤＳ
140 ）の１．１５倍よりも小さいことであり、好ましく
は１．１倍よりも小さいこと、さらに好ましくは１．０
５倍よりも小さいことである。ＤＳ210 ≦ＤＳ140 とな
る場合もあるが、乾熱収縮応力は温度が高くなるほど大
きいという一般的な傾向からして、ＤＳ210 ／ＤＳ140
の値は小さくとも０．８程度である。Further, the most important thing in the polyester fiber of the present invention is that the dry heat shrinkage stress (DS210) at 210 ° C. is 140 ° C.
140) smaller than 1.15 times, preferably smaller than 1.1 times, and more preferably 1.0.
It is smaller than 5 times. In some cases, DS210 ≤ DS140, but dry heat shrinkage stress tends to increase as the temperature increases.
The value of is at least about 0.8.
【００２０】このように１４０〜２１０℃において乾熱
収縮応力の温度依存性が小さい本発明のポリエステル繊
維は、例えば図１のやのような、熱収縮応力曲線
（処理温度に対する乾熱収縮応力の変化曲線）を示す。
これに対し、従来のポリエステル繊維は乾熱収縮応力の
温度依存性が大きく、例えば図１ののような、熱収縮
応力曲線を示す。As described above, the polyester fiber of the present invention having a small temperature dependence of the dry heat shrinkage stress at 140 to 210 ° C. has a heat shrinkage stress curve (dry heat shrinkage stress with respect to the treatment temperature as shown in FIG. Change curve) is shown.
On the other hand, the conventional polyester fiber has a large temperature dependency of the dry heat shrinkage stress, and exhibits a heat shrinkage stress curve as shown in FIG. 1, for example.
【００２１】即ち、図１のに示す熱収縮応力曲線のよ
うに、温度上昇に伴う収縮応力の増加の割合が一旦小さ
くなり約１４０℃以上でほぼ一定水準の応力を示す繊維
や、図１のに示す熱収縮応力曲線のように、約１４０
℃以上で温度上昇に伴う収縮応力が一旦減少する繊維の
場合は、図１のに示す熱収縮応力曲線のように、温度
とともに収縮応力が単調に増加する従来の繊維によりも
はるかに、熱セット工程の通過安定性に優れ、工程通過
後の製品の品位の点においても優れている。That is, as shown in the heat shrinkage stress curve shown in FIG. 1, the rate of increase of shrinkage stress with temperature rise is once decreased, and the fiber shows an almost constant level of stress at about 140 ° C. or higher, or the fiber of FIG. As shown in the heat shrinkage stress curve in Fig.
In the case of a fiber in which the shrinkage stress with temperature rise once decreases above ℃, as shown in the heat shrinkage stress curve shown in Fig. 1, the heat setting is much higher than that of the conventional fiber in which the shrinkage stress monotonically increases with temperature. It has excellent passage stability and is also excellent in terms of product quality after passing through the process.
【００２２】このように１４０〜２１０℃の温度範囲に
おける熱収縮応力の傾きの小さい繊維が熱セット工程の
通過安定性に優れ工程通過後の製品の品位にも優れる理
由としては、布帛に樹脂を被覆する際に樹脂の温度ある
いは接着ロールの温度に不均一な部分があったり、樹脂
の厚さや冷却風のむらから冷却速度に差が生じた場合に
おいても、ポリエステル繊維の乾熱収縮応力のばらつき
が小さく抑えられ、力学的な歪が生じ難いためであると
考えられる。The reason why the fiber having a small gradient of the heat shrinkage stress in the temperature range of 140 to 210 ° C. is excellent in the passing stability in the heat setting step and the quality of the product after passing the step is that the resin is used for the cloth. Even if there is a non-uniform part in the temperature of the resin or the temperature of the adhesive roll during coating, or if there is a difference in the cooling rate due to the thickness of the resin or the unevenness of the cooling air, the variation in dry heat shrinkage stress of the polyester fiber It is thought that this is because it is suppressed to a small value and it is difficult for mechanical strain to occur.
【００２３】このように、本発明の目的である優れた物
性、品位とともに優れた工程通過性を得るためには、上
述のようにポリエステル繊維の強度、伸度が大きく、乾
熱収縮率が小さく、乾熱収縮応力の温度依存性が小さい
ことが必須要件であるが、品位と工程通過性をさらに一
層高めるためには、乾熱収縮率の温度依存性も小さく、
乾熱収縮応力の絶対値も小さい方が好ましい。As described above, in order to obtain the excellent physical properties and quality as well as the excellent processability, which is the object of the present invention, as described above, the strength and the elongation of the polyester fiber are large, and the dry heat shrinkage is small. It is an essential requirement that the temperature dependence of dry heat shrinkage stress is small, but in order to further improve quality and process passability, the temperature dependence of dry heat shrinkage is also small,
It is preferable that the absolute value of the dry heat shrinkage stress is also small.
【００２４】その乾熱収縮率の温度依存性の水準は、２
００℃における乾熱収縮率と１５０℃における乾熱収縮
率との差が３．５％以下であることが好ましく、さらに
その差が３．３％以下であることが特に好ましい。ま
た、２１０℃における熱収縮応力が０．１２ｇ／ｄ以下
であることが好ましく、さらに０．１０ｇ／ｄ以下であ
ることが特に好ましい。The level of temperature dependence of the dry heat shrinkage is 2
The difference between the dry heat shrinkage at 00 ° C. and the dry heat shrinkage at 150 ° C. is preferably 3.5% or less, and more preferably 3.3% or less. The heat shrinkage stress at 210 ° C. is preferably 0.12 g / d or less, and more preferably 0.10 g / d or less.
【００２５】本発明で特定した各物性値は、次の方法に
より測定される値である。Each physical property value specified in the present invention is a value measured by the following method.
【００２６】［固有粘度］重合体の固有粘度は、オルソ
クロルフェノール１００ｍｌに対し試料８ｇを溶解した
溶液の相対粘度ηｒをオストワルド式粘度計を用いて測
定し、次の近似式によって求める。 固有粘度＝０．０２４２ηｒ＋０．２６３４[Intrinsic viscosity] The intrinsic viscosity of the polymer is obtained by measuring the relative viscosity ηr of a solution in which 8 g of the sample is dissolved in 100 ml of orthochlorophenol using an Ostwald viscometer and by the following approximate expression. Intrinsic viscosity = 0.0242 ηr + 0.2634
【００２７】［強度、伸度］強度および伸度はＪＩＳ−
Ｌ−１０１７に記載の方法によって測定する。[Strength and Elongation] Strength and elongation are JIS-
It is measured by the method described in L-1017.
【００２８】［乾熱収縮率］乾熱収縮率は、１５０℃又
は２００℃で３０分間無荷重下で熱処理を行ない、その
熱処理の前後における糸長を０．０５ｇ／ｄの荷重下で
測定し、次式より求める。 乾熱収縮率＝（Ｌ0 −Ｌ1 ）×１００／Ｌ0 （Ｌ0 ：処理前の糸長、Ｌ1 ：処理後の糸長）[Dry Heat Shrinkage] The dry heat shrinkage is obtained by performing heat treatment at 150 ° C. or 200 ° C. for 30 minutes under no load, and measuring the yarn length before and after the heat treatment under a load of 0.05 g / d. , Calculated from the following formula. Dry heat shrinkage = (L0-L1) x 100 / L0 (L0: yarn length before treatment, L1: yarn length after treatment)
【００２９】［乾熱収縮応力］乾熱収縮応力は、長さ１
０ｃｍに結んだループ状のサンプルに０．０３４ｇ／ｄ
の初荷重をかけた状態で、室温から１５０℃／分の速度
でサンプルを加熱し、その加熱の際に測定される収縮応
力である。その収縮応力は処理温度とともに変化する熱
収縮応力曲線として得られる。具体的にはカネボウエン
ジニアリング社製のＫＥ−II型収縮応力測定装置を用い
て測定を行えばよい。[Dry Heat Shrinkage Stress] The dry heat shrinkage stress has a length of 1
0.034 g / d for a loop sample tied to 0 cm
The shrinkage stress is measured when the sample is heated from room temperature at a rate of 150 ° C./min under the initial load of 1. The shrinkage stress is obtained as a heat shrinkage stress curve that changes with the processing temperature. Specifically, the measurement may be performed using a KE-II type shrinkage stress measuring device manufactured by Kanebo Engineering Co., Ltd.
【００３０】本発明のポリエステル繊維は、前述した従
来の製造方法では得られず、例えば、実施例１〜５に示
すような新規な製法で製糸することによって得ることが
できる。即ち、この製糸方法は次の点を特徴とする。The polyester fiber of the present invention cannot be obtained by the conventional production method described above, but can be obtained by spinning by a novel production method as shown in Examples 1 to 5, for example. That is, this yarn making method is characterized by the following points.
【００３１】溶融押出し、冷却、給油されたポリエステ
ル繊維を、一旦巻取ることなく２段以上で加熱ロール間
で延伸し続いて弛緩処理するという方法において、弛緩
処理を行う最終延伸ローラと弛緩ローラとの間に非接触
加熱装置を設け、３００〜５００℃、好ましくは３５０
〜４５０℃という高温で熱処理を行いつつ弛緩処理を施
すことにより、本発明のポリエステル繊維を製造するこ
とができる。In the method in which the melt-extruded, cooled and oiled polyester fiber is stretched between heating rolls in two or more stages without being once wound and then subjected to a relaxation treatment, a final stretching roller and a relaxation roller for performing a relaxation treatment are provided. A non-contact heating device is provided between 300 and 500 ° C., preferably 350
The polyester fiber of the present invention can be produced by performing relaxation treatment while performing heat treatment at a high temperature of up to 450 ° C.
【００３２】この非接触加熱装置の温度が３００℃未満
と低過ぎる場合は、繊維に与える熱量が不足し本発明の
ポリエステル繊維は得られ難い。逆に、５００℃を越え
る場合は糸条の破断が発生し易いので工業的生産が困難
である。If the temperature of this non-contact heating device is too low, less than 300 ° C., the amount of heat applied to the fibers will be insufficient, and it will be difficult to obtain the polyester fibers of the present invention. On the other hand, if the temperature exceeds 500 ° C., the yarn is likely to break, which makes industrial production difficult.
【００３３】この非接触加熱装置には、一般的なスリッ
ト型熱板、スチームボックス、赤外線放射炉等の非接触
熱源を用いればよい。For this non-contact heating device, a non-contact heat source such as a general slit type hot plate, steam box, infrared radiant furnace may be used.
【００３４】[0034]
［実施例１］固有粘度が０．７０のポリエチレンテレフ
タレートを、孔径０．６ｍｍ、４８個の吐出孔を有する
紡糸口金より２９５℃で溶融押出しし、２９０℃に加熱
された、長さ１３ｃｍの加熱筒内を通過させた後、チム
ニーで冷却し、油剤を付与後、周速９００ｍ／min の第
１ローラーに周回して引取った。第１ローラーに周回さ
れた糸条を一旦巻き取ることなく第１ローラーと第２ロ
ーラーとの間で１．０３倍に、第２ローラーと第３ロー
ラーとの間で３．５倍に延伸し、第３ローラーと第４ロ
ーラーとの間でさらに１．５倍に延伸した。引続き第４
ローラーと第５ローラー（弛緩ローラー）との間で４０
０℃に加熱された長さ５０ｃｍの非接触熱源により糸条
に熱を加えながら０．９２倍に弛緩処理した後、ワイン
ダーで巻取った。[Example 1] Polyethylene terephthalate having an intrinsic viscosity of 0.70 was melt-extruded at 295 ° C from a spinneret having a hole diameter of 0.6 mm and 48 discharge holes, and heated to 290 ° C, and heated to a length of 13 cm. After passing through the cylinder, it was cooled by a chimney, and after applying an oil agent, it was orbited by a first roller having a peripheral speed of 900 m / min and taken up. The yarn wound around the first roller was stretched 1.03 times between the first roller and the second roller and 3.5 times between the second roller and the third roller without once being wound up. , And further stretched 1.5 times between the third roller and the fourth roller. Continued 4th
40 between roller and 5th roller (relaxation roller)
The filament was relaxed by 0.92 times while applying heat to the yarn with a non-contact heat source having a length of 50 cm and heated to 0 ° C., and then wound with a winder.
【００３５】使用したローラーは全て１対のネルソンロ
ーラーで構成され、弛緩ローラー以外は加熱ローラーを
使用した。第４ローラーの温度は２２０℃であった。The rollers used were all composed of a pair of Nelson rollers, and heating rollers were used except for the relaxation rollers. The temperature of the fourth roller was 220 ° C.
【００３６】得られた糸条は２５０デニールの繊度を有
し、固有粘度が０．６７、強度が７．８ｇ／ｄ、破断伸
度が２０％、１５０℃における乾熱収縮率が２．２％、
２００℃における乾熱収縮率が５．４％であり、得られ
たポリエステル繊維の熱収縮応力曲線において、２１０
℃における応力は０．０７８ｇ／ｄ、１４０℃における
応力は０．０８２ｇ／ｄであった。The obtained yarn has a fineness of 250 denier, an intrinsic viscosity of 0.67, a strength of 7.8 g / d, a breaking elongation of 20% and a dry heat shrinkage ratio at 150 ° C. of 2.2. %,
The dry heat shrinkage at 200 ° C. was 5.4%, and the polyester resin obtained had a heat shrinkage stress curve of 210%.
The stress at 0 ° C was 0.078 g / d, and the stress at 140 ° C was 0.082 g / d.
【００３７】得られたポリエステル繊維を粗目の織物に
製織し、その表裏に表面温度１６０℃の逆Ｌカレンダー
を用いてポリ塩化ビニル樹脂をコーティングした。The polyester fiber obtained was woven into a coarse woven fabric, and the front and back of the woven fabric were coated with a polyvinyl chloride resin using an inverted L calender having a surface temperature of 160 ° C.
【００３８】コーティング加工時にポリエステル繊維の
収縮むらに起因する皺や撚れの発生は認められず、得ら
れた樹脂被覆布帛の品位は良好であった。また、その工
程通過性も良好であった。No wrinkles or twists due to uneven shrinkage of the polyester fiber were observed during the coating process, and the quality of the obtained resin-coated fabric was good. Moreover, the process passability was also good.
【００３９】［実施例２］固有粘度が０．６７のポリエ
チレンテレフタレートを実施例１と同様の装置を用いて
溶融紡糸し、第１ローラーの周回速度を７００ｍ／ｍｉ
ｎとし、第１ローラーから第４ローラーに至る各ローラ
ー間において各々１．０３倍、３．７倍、１．５倍の延
伸を施した後、３６０℃に加熱された非接触熱源（実施
例１と同じ）により糸条に熱を加えながら０．９０倍に
弛緩処理を施した後、ワインダーで巻き取った。第４ロ
ーラーの温度は２２０℃であった。Example 2 Polyethylene terephthalate having an intrinsic viscosity of 0.67 was melt-spun using the same apparatus as in Example 1, and the orbital speed of the first roller was 700 m / mi.
n, and a non-contact heat source heated to 360 ° C. after stretching 1.03 times, 3.7 times, and 1.5 times between each roller from the first roller to the fourth roller (Example The same as in 1) was applied to the yarn to relax it 0.90 times, and then it was wound with a winder. The temperature of the fourth roller was 220 ° C.
【００４０】得られた糸条は２５０デニールの繊度を有
し、固有粘度が０．６４、強度が７．４ｇ／ｄ、破断伸
度が２２％、１５０℃における乾熱収縮率が２．１％、
２００℃における乾熱収縮率が５．２％であり、得られ
たポリエステル繊維の熱収縮応力曲線において、２１０
℃における応力が０．０８０ｇ／ｄ、１４０℃における
応力が０．０８８ｇ／ｄであった。The obtained yarn has a fineness of 250 denier, an intrinsic viscosity of 0.64, a strength of 7.4 g / d, a breaking elongation of 22% and a dry heat shrinkage ratio at 150 ° C. of 2.1. %,
The dry heat shrinkage percentage at 200 ° C. was 5.2%, and the heat shrinkage stress curve of the obtained polyester fiber was 210%.
The stress at 0 ° C was 0.080 g / d and the stress at 140 ° C was 0.088 g / d.
【００４１】得られたポリエステル繊維を、実施例１と
同様に織布とし樹脂コーティングを施したところ、皺や
撚れの発生は認められず、得られた樹脂被覆布帛の品位
は良好であった。また、工程通過性も良好であった。When the obtained polyester fiber was woven and resin-coated in the same manner as in Example 1, no wrinkles or twists were observed, and the quality of the obtained resin-coated fabric was good. . The process passability was also good.
【００４２】［実施例３］固有粘度が０．８０のポリエ
チレンテレフタレートを実施例１と同様の装置を用い、
第１ローラーの周回速度を５００ｍ／ｍｉｎとし、第１
ローラーから第４ローラーに至る各ローラー間において
各々１．０３倍、３．９倍、１．４倍の延伸を施した
後、３８０℃に加熱された非接触熱源（実施例１と同
じ）により糸条に熱を加えながら０．８６倍に弛緩処理
を施した後、ワインダーで巻き取った。第４ローラーの
温度は２２０℃であった。[Example 3] Polyethylene terephthalate having an intrinsic viscosity of 0.80 was used in the same apparatus as in Example 1,
The orbital speed of the first roller is set to 500 m / min, and the first
By applying 1.03 times, 3.9 times, and 1.4 times stretching between each roller from the roller to the fourth roller, a non-contact heat source heated to 380 ° C. (same as in Example 1) was used. The yarn was subjected to relaxation treatment 0.86 times while applying heat, and then wound up with a winder. The temperature of the fourth roller was 220 ° C.
【００４３】得られた糸条は２５０デニールの繊度を有
し、固有粘度が０．７３、強度が７．９ｇ／ｄ、破断伸
度が２２％、１５０℃における乾熱収縮率が２．５％、
２００℃における乾熱収縮率が５．６％であり、得られ
たポリエステル繊維の熱収縮応力曲線において、２１０
℃における応力が０．０８８ｇ／ｄ、１４０℃における
応力が０．０９２ｇ／ｄであった。The obtained yarn has a fineness of 250 denier, an intrinsic viscosity of 0.73, a strength of 7.9 g / d, an elongation at break of 22% and a dry heat shrinkage ratio at 150 ° C. of 2.5. %,
The dry heat shrinkage percentage at 200 ° C. was 5.6%, and the polyester fiber obtained had a heat shrinkage stress curve of 210%.
The stress at 0 ° C was 0.088 g / d and the stress at 140 ° C was 0.092 g / d.
【００４４】得られたポリエステル繊維を、実施例１と
同様に織布とし樹脂コーティングを施したところ、起因
する皺や撚れの発生は認められず、得られた樹脂被覆布
帛の品位は良好であった。また、その工程通過性も良好
であった。When the obtained polyester fiber was woven and resin-coated in the same manner as in Example 1, no wrinkles or twists caused by it were observed, and the quality of the obtained resin-coated fabric was good. there were. Moreover, the process passability was also good.
【００４５】［実施例４〜５］実施例１と同様の装置を
用い、使用するポリエステルチップの固有粘度を変え、
紡糸直接延伸法によってポリエステル繊維を製造し、実
施例１と同様に布帛にし樹脂コーティングしたところ、
表１に示すとおりの結果であった。[Examples 4 to 5] Using the same apparatus as in Example 1, the intrinsic viscosity of the polyester chips used was changed,
A polyester fiber was produced by a spinning direct drawing method, and a cloth was formed and resin-coated in the same manner as in Example 1.
The results were as shown in Table 1.
【００４６】［比較例１］固有粘度が１．２０のポリエ
チレンテレフタレートを孔径０．６ｍｍ、４８個の吐出
孔を有する口金より３００℃で溶融押出しし、３２０℃
に加熱された、長さ３０ｃｍの加熱筒を通過させた後チ
ムニーで冷却し、油剤を付与後、周速７００ｍ／ｍｉｎ
の第１ローラーに周回した。第１ローラーに周回された
糸条を一旦巻取ることなく第１ローラーと第２ローラー
との間で１．０３倍に延伸し、第２ローラーと第３ロー
ラーとの間４００℃に加熱されたスチームを糸条に吹き
つけながら５．５倍に延伸し、第３ローラーと第４ロー
ラー（弛緩ローラー）との間で０．９０倍に弛緩処理し
た後ワインダーで巻取った。使用した各ローラーは全て
１対のネルソンローラーで構成され、弛緩ローラー以外
は加熱ローラーを使用した。第４ローラーの温度は２５
０℃であった。COMPARATIVE EXAMPLE 1 Polyethylene terephthalate having an intrinsic viscosity of 1.20 was melt extruded at 300 ° C. from a die having a hole diameter of 0.6 mm and 48 discharge holes at 320 ° C.
After passing through a heating cylinder with a length of 30 cm that has been heated to 1, cool with a chimney, apply an oil agent, and then rotate at a peripheral speed of 700 m / min.
It went around the first roller. The yarn wound around the first roller was stretched 1.03 times between the first roller and the second roller without once being wound, and was heated to 400 ° C. between the second roller and the third roller. The steam was stretched 5.5 times while being blown onto the yarn, relaxed 0.90 times between the third roller and the fourth roller (relaxation roller), and then wound by a winder. Each of the rollers used consisted of a pair of Nelson rollers, and heating rollers were used except for the relaxation rollers. The temperature of the fourth roller is 25
It was 0 ° C.
【００４７】得られた糸条は２５０デニールの繊度を有
し、固有粘度が０．９８、強度が８．５ｇ／ｄ、破断伸
度が２３％、１５０℃における乾熱収縮率が３．８％、
２００℃における乾熱収縮率が６．８％であり、得られ
たポリエステル繊維の熱収縮応力曲線において、２１０
℃における応力が０．１１５ｇ／ｄは、１４０℃におけ
る応力が０．０９２ｇ／ｄであった。The obtained yarn has a fineness of 250 denier, an intrinsic viscosity of 0.98, a strength of 8.5 g / d, a breaking elongation of 23% and a dry heat shrinkage ratio at 150 ° C. of 3.8. %,
The dry heat shrinkage at 200 ° C. was 6.8%, and the heat shrinkage stress curve of the obtained polyester fiber was 210.
The stress at 140 ° C. was 0.192 g / d and the stress at 140 ° C. was 0.092 g / d.
【００４８】得られたポリエステル繊維を、実施例１と
同様に織布とし樹脂コーティングを施したところ、繊維
の過度の収縮によると考えられる皺が発生し、良好な品
位の樹脂被覆布帛を得ることができなかった。When the obtained polyester fiber was woven and resin-coated in the same manner as in Example 1, wrinkles, which are considered to be due to excessive shrinkage of the fiber, were generated, and a resin-coated fabric of good quality was obtained. I couldn't.
【００４９】［比較例２］固有粘度が０．７０のポリエ
チレンテレフタレートを孔径０．６ｍｍ、４８個の吐出
孔を有する口金より２９５℃で溶融押出しし、２９５℃
に加熱された、長さ１３ｃｍの加熱筒を通過させた後、
チムニーで冷却し、油剤の付与後周速５００ｍ／ｍｉｎ
の第１ローラーに周回し、ワインダーで未延伸糸を巻き
取った。Comparative Example 2 Polyethylene terephthalate having an intrinsic viscosity of 0.70 was melt extruded from a die having a hole diameter of 0.6 mm and 48 discharge holes at 295 ° C., and 295 ° C.
After passing through a 13 cm long heating tube heated to
After cooling with chimney, after applying oil, peripheral speed is 500 m / min
The first unrolled yarn was wound around the first roller of No. 1 and wound with a winder.
【００５０】一旦巻き取られた未延伸糸を延伸機の第１
ローラーと第２ローラーとの間で１．０３倍に延伸し、
第２ローラーと第３ローラーとの間で３．７倍に、第３
ローラーと第４ローラーの間でさらに１．５倍に延伸し
た後第４ローラーと第５ローラー（弛緩ローラー）との
間で０．９２倍に弛緩処理した後ワインダーで巻き取っ
た。第４ローラーの温度は２３０℃であった。The undrawn yarn which has been once wound up is first drawn in the drawing machine.
Stretching 1.03 times between the roller and the second roller,
3.7 times between the second roller and the third roller, the third
The film was further stretched 1.5 times between the roller and the fourth roller, then subjected to a relaxation treatment of 0.92 times between the fourth roller and the fifth roller (relaxation roller), and then wound by a winder. The temperature of the fourth roller was 230 ° C.
【００５１】得られた糸条は２５０デニールの繊度を有
し、固有粘度０．６７、強度７．４ｇ／ｄ、破断伸度２
１％、１５０℃における乾熱収縮率は２．３％、２００
℃における乾熱収縮率は７．５％であり、得られたポリ
エステル繊維の熱収縮応力曲線において、２１０℃にお
ける応力０．１３０ｇ／ｄは、１４０℃における応力
０．０６５ｇ／ｄの２．００倍であった。The obtained yarn has a fineness of 250 denier, an intrinsic viscosity of 0.67, a strength of 7.4 g / d and an elongation at break of 2
1%, dry heat shrinkage at 150 ° C is 2.3%, 200
The dry heat shrinkage percentage at 7.5 ° C. was 7.5%, and in the heat shrinkage stress curve of the obtained polyester fiber, the stress at 210 ° C. was 0.130 g / d, and the stress at 140 ° C. was 0.065 g / d, which was 2.00. It was double.
【００５２】得られたポリエステル繊維、実施例１と同
様に織布とし樹脂コーティングを施したところ、コーテ
ィング時のローラー温度のむらおよびポリ塩化ビニル樹
脂の塗布厚さのむらに起因すると考えられる部分的な撚
れや皺の発生が認められ、得られた樹脂被覆布帛は外観
品位に劣るものであった。When the obtained polyester fiber was woven and resin-coated in the same manner as in Example 1, partial twisting which is considered to be caused by unevenness of roller temperature during coating and unevenness of coating thickness of polyvinyl chloride resin was observed. The occurrence of wrinkles and wrinkles was observed, and the obtained resin-coated fabric was inferior in appearance quality.
【００５３】［比較例３］実施例１と同様の装置を用
い、使用するポリエステルチップの固有粘度を変え、紡
糸直接延伸法によってポリエステル繊維を製造し、実施
例１と同様に布帛にし樹脂コーティングしたところ、樹
脂被覆布帛の外観品位は良好であったが、実用上必要な
布帛強度水準が得られなかった。Comparative Example 3 Using the same apparatus as in Example 1, the intrinsic viscosity of the polyester chips used was changed, and polyester fibers were produced by the direct spinning method, and the cloth was coated with the resin in the same manner as in Example 1. However, although the appearance quality of the resin-coated cloth was good, the cloth strength level required for practical use could not be obtained.
【００５４】[0054]
【表１】 [Table 1]
【００５５】[0055]
【発明の効果】本発明のポリエステル繊維は高強度・高
伸度で、かつ低く安定な熱収縮特性を有するので、樹脂
被覆工程における収率が向上し、さらに品位に優れた製
品が得られる。EFFECT OF THE INVENTION Since the polyester fiber of the present invention has high strength and high elongation and low and stable heat shrinkage characteristics, the yield in the resin coating step is improved, and a product having excellent quality can be obtained.
【図１】ポリエステル繊維の処理温度−乾熱収縮応力変
化曲線を示す図である。FIG. 1 is a diagram showing a treatment temperature-dry heat shrinkage stress change curve of a polyester fiber.
【符号の説明】 ： 従来のポリエステル繊維の処理温度−乾熱収縮応
力変化曲線である。 、： 本発明のポリエステル繊維の処理温度−乾熱
収縮応力変化曲線を例示するものである。[Explanation of Codes]: It is a conventional treatment temperature-dry heat shrinkage stress change curve of polyester fiber. ,: A graph showing a change temperature-dry heat shrinkage stress change curve of the polyester fiber of the present invention.
Claims (4)
レンテレフタレートを主成分としてなるポリエステル繊
維であって、強度が７．１ｇ／ｄ以上、伸度が１８％以
上、１５０℃における乾熱収縮率が２．８％以下、か
つ、２１０℃における乾熱収縮応力（ＤＳ210 ）と１４
０℃における乾熱収縮応力（ＤＳ140 ）との比（ＤＳ21
0 ／ＤＳ140 ）が１．１５未満であることを特徴とする
ポリエステル繊維。1. A polyester fiber mainly composed of polyethylene terephthalate having an intrinsic viscosity of 0.6 to 0.8, having a strength of 7.1 g / d or more, an elongation of 18% or more, and a dry heat at 150 ° C. Shrinkage rate is 2.8% or less, and dry heat shrinkage stress (DS210) at 210 ℃ 14
Ratio with dry heat shrinkage stress (DS140) at 0 ℃ (DS21
0 / DS140) is less than 1.15.
℃における乾熱収縮率との差が３．５％以下であること
を特徴とする請求項１記載のポリエステル繊維。2. Dry heat shrinkage at 200 ° C. and 150
The polyester fiber according to claim 1, which has a difference from the dry heat shrinkage at 3.5 ° C of 3.5% or less.
0 ）が、０．１２ｇ／ｄ以下であることを特徴とする請
求項１記載のポリエステル繊維。3. Thermal shrinkage stress (DS21 at 210 ° C.)
The polyester fiber according to claim 1, wherein 0) is 0.12 g / d or less.
ことを特徴とする請求項１記載のポリエステル繊維。4. The polyester fiber according to claim 1, which is a polyester fiber for a resin-coated cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4728995A JPH08246236A (en) | 1995-03-07 | 1995-03-07 | Polyester fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4728995A JPH08246236A (en) | 1995-03-07 | 1995-03-07 | Polyester fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08246236A true JPH08246236A (en) | 1996-09-24 |
Family
ID=12771137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4728995A Pending JPH08246236A (en) | 1995-03-07 | 1995-03-07 | Polyester fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08246236A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010520384A (en) * | 2007-03-05 | 2010-06-10 | コーロン インダストリーズ，インコーポレイテッド | Polyester yarn and woven fabric containing the same |
| JP2012502194A (en) * | 2008-09-05 | 2012-01-26 | コーロン インダストリーズ インク | Airbag fabric and method for producing the same |
| KR20190140958A (en) * | 2017-12-14 | 2019-12-20 | 지앙수 헝리 케미컬 파이버 컴퍼니 리미티드 | Low shrinkage polyester industrial yarn and its manufacturing method |
-
1995
- 1995-03-07 JP JP4728995A patent/JPH08246236A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010520384A (en) * | 2007-03-05 | 2010-06-10 | コーロン インダストリーズ，インコーポレイテッド | Polyester yarn and woven fabric containing the same |
| JP2012502194A (en) * | 2008-09-05 | 2012-01-26 | コーロン インダストリーズ インク | Airbag fabric and method for producing the same |
| KR20190140958A (en) * | 2017-12-14 | 2019-12-20 | 지앙수 헝리 케미컬 파이버 컴퍼니 리미티드 | Low shrinkage polyester industrial yarn and its manufacturing method |
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