JPH0136921Y2 - - Google Patents
Info
- Publication number
- JPH0136921Y2 JPH0136921Y2 JP10008583U JP10008583U JPH0136921Y2 JP H0136921 Y2 JPH0136921 Y2 JP H0136921Y2 JP 10008583 U JP10008583 U JP 10008583U JP 10008583 U JP10008583 U JP 10008583U JP H0136921 Y2 JPH0136921 Y2 JP H0136921Y2
- Authority
- JP
- Japan
- Prior art keywords
- roller
- yarn
- temperature
- heat treatment
- stretching
- 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
Links
- 238000010438 heat treatment Methods 0.000 claims description 23
- 239000000835 fiber Substances 0.000 description 17
- 229920000728 polyester Polymers 0.000 description 13
- 238000000034 method Methods 0.000 description 7
- 230000007423 decrease Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000004177 elastic tissue Anatomy 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012770 industrial material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 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
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Artificial Filaments (AREA)
Description
【考案の詳細な説明】
（技術分野）
本考案は高強度且つ高弾性率のポリエステル繊
維の製造装置に関するものである。[Detailed Description of the Invention] (Technical Field) The present invention relates to an apparatus for producing polyester fibers having high strength and high modulus of elasticity.
（従来技術）
ポリエステル特にポリエチレンテレフタレート
よりなる繊維は多くの優れた特性を有するがゆえ
に衣料用のみならず産業資材、特にタイヤ、Ｖ−
ベルト、コンベアベルト、タイミングベルト等の
ゴム構造物の補強用として使用されている。(Prior art) Fibers made of polyester, especially polyethylene terephthalate, have many excellent properties and are therefore used not only for clothing but also for industrial materials, especially tires, V-
It is used to reinforce rubber structures such as belts, conveyor belts, and timing belts.
かかるゴム構造物の補強用のポリエステル繊維
には高強度、高弾性率が要求される。従来高強度
のポリエステル繊維を得るためには高重合度の未
延伸糸を高倍率に多段で延伸する方法が知られて
いる。しかしながら、このような方法で得られた
ポリエステル繊維の強度及び初期モジユラスは
高々9.5ｇ／de及び145ｇ／de（18GPa）に留まつ
ている。 Polyester fibers for reinforcing such rubber structures are required to have high strength and high modulus. Conventionally, in order to obtain high-strength polyester fibers, a method has been known in which undrawn yarn with a high degree of polymerization is drawn in multiple stages at a high magnification. However, the strength and initial modulus of polyester fibers obtained by this method remain at most 9.5 g/de and 145 g/de (18 GPa).
近年、ポリエステルの如き分子鎖が柔軟なポリ
マーにおいても、新規な紡糸技術や延伸技術を開
発することによつて高強度で且つ高弾性率の繊維
を得ようとする研究が行なわれている。ポリエス
テル繊維においても、例えば繊維をその長さ方向
に短い幅で局部的に加熱して延伸及び熱処理を行
なう、いわゆるゾーン延伸・熱処理法が研究さ
れ、高弾性繊維が得られたとの報告〔Journal of
Applied Polymer Science第26巻213頁（1981
年）〕がある。しかしながら、この方法で得られ
るポリエステル繊維は、初期モジユラスは約160
ｇ／de（20GPa）というかなり高い値であるもの
の強度は７ｇ／de程度で、通常の多段延伸によ
る9.5ｇ／deに及ばない値にとどまつている。 In recent years, even for polymers with flexible molecular chains such as polyester, research has been conducted in an attempt to obtain fibers with high strength and high elastic modulus by developing new spinning and drawing techniques. For polyester fibers, for example, research has been conducted on the so-called zone drawing/heat treatment method, in which the fibers are locally heated in short widths in the longitudinal direction to perform stretching and heat treatment, and it has been reported that highly elastic fibers were obtained [Journal of
Applied Polymer Science Vol. 26, p. 213 (1981)
)]. However, the polyester fiber obtained by this method has an initial modulus of about 160.
Although the strength is quite high at g/de (20 GPa), it is only about 7 g/de, which is lower than the 9.5 g/de obtained by ordinary multi-stage stretching.
本考案者等は、高強度で且つ高弾性率のポリエ
ステル繊維を製造せんとして鋭意研究した結果、
複屈折率が120×10-3以上で且つ結晶化度が20％
以上である結晶性高配向ポリエステル繊維を下記
式〔１〕を満足する範囲内の一定張力又は延伸温
度上昇と共に減少する張力を加えながら下記式
〔２〕及び〔３〕
1.0Ｆ４−0.006T …〔１〕
T1Tg …〔２〕
T2Tm−15 …〔３〕
〔但し、
Ｆ：張力（ｇ／de）
Ｔ：延伸過程中の温度（℃）
Tg：該結晶性高配向ポリエステル繊維のガラ
ス転移温度（℃）
Tm：該結晶性高配向ポリエステル繊維の融点
（℃）〕
を満足する延伸開始温度T1（℃）より延伸終了温
度T2（℃）まで連続的に昇温させて延伸・熱処理
すれば上記目的が達成し得ることを知り先に提案
した。連続的に昇温しながら延伸するには、繊維
をチヤツク間に固定し連続的に昇温させながら、
張力測定装置で検出した張力が一定又は温度上昇
と共に減少する張力になる様にチヤツク間距離を
引伸し、延伸すればよいが、かかる方法では連続
的に生産し得ない。 As a result of intensive research into producing polyester fibers with high strength and high modulus, the inventors of the present invention found that
Birefringence is 120×10 -3 or more and crystallinity is 20%
The above crystalline highly oriented polyester fibers are subjected to the following formulas [2] and [3] 1.0F4-0.006T while applying a constant tension within a range that satisfies the following formula [1] or a tension that decreases as the drawing temperature increases. 1] T 1 Tg … [2] T 2 Tm−15 … [3] [However, F: Tension (g/de) T: Temperature during the drawing process (°C) Tg: Glass of the crystalline highly oriented polyester fiber Transition temperature (°C) Tm: melting point (°C) of the crystalline highly oriented polyester fiber] The temperature is continuously raised from the drawing start temperature T 1 (°C) to the drawing end temperature T 2 (°C), which satisfies the following. I learned that the above objective could be achieved by heat treatment and proposed it to the other party. To stretch the fibers while continuously increasing the temperature, fix the fiber between the chucks and continuously increase the temperature.
The distance between the chucks may be increased and stretched so that the tension detected by the tension measuring device is constant or decreases as the temperature increases, but continuous production is not possible with such a method.
（考案の目的）
本考案の目的とする所は高強度で且つ高弾性率
のポリエステル繊維を製造する為に、一定張力で
又は延伸温度上昇と共に減少する張力を加えなが
ら連続的に温度を昇温させて延伸熱処理を行なう
装置を提供することにある。(Purpose of the invention) The purpose of the invention is to continuously raise the temperature while applying a constant tension or a tension that decreases as the drawing temperature increases, in order to produce polyester fibers with high strength and high elastic modulus. An object of the present invention is to provide an apparatus for carrying out stretching heat treatment.
即ち、本考案は糸入側のローラ径よりも糸出側
のローラ径が、糸入側より糸出側に向つて延伸倍
率に対応する分だけ、又はそれ以下の割合で直線
状に大となり、且つ糸入側から糸出側に向つてロ
ーラー表面温度が高温となる温度勾配を持たせた
加熱ローラーと、該加熱ローラーと対応させて糸
のターン毎に独立して回転可能となしたセパレー
ターローラーとからなる延伸・熱処理装置であ
る。 That is, in the present invention, the diameter of the roller on the yarn exit side is linearly larger than the diameter of the roller on the yarn entry side by an amount corresponding to the stretching ratio or less from the yarn entry side toward the yarn exit side. In addition, a heating roller has a temperature gradient such that the roller surface temperature increases from the yarn entry side to the yarn exit side, and a separator roller that can rotate independently for each turn of the yarn in correspondence with the heating roller. This is a stretching/heat treatment equipment consisting of.
本考案を図面により具体的に説明する。第１図
は本考案の延伸熱処理装置の概略図である。１は
加熱ローラーで奥側（糸の入側）から先端側（糸
の出側）に向つてローラー径が長さ方向に直線的
に増大している。２はセパレーターローラーで糸
３のターン毎に独立して回転する溝付ローラー２
ａ，２ｂ，…からなつており、糸３は加熱ローラ
ー１の奥側から入つてセパレーターローラー２の
各溝付ローラー２ａ，２ｂ，…を介して順次延伸
されながら加熱ローラー１の先端から出て行く。
第２図は加熱ローラー１の断面を示したものでロ
ーラー内部に、夫々独立した加熱ヒーター４，５
を有し、且つローラー先端とローラー奥側に温度
検出端６，７を設けて、加熱ローラーの長さ方向
の温度分布を任意に変えうる構造になつている。 The present invention will be specifically explained with reference to the drawings. FIG. 1 is a schematic diagram of the stretching heat treatment apparatus of the present invention. 1 is a heating roller whose diameter increases linearly in the length direction from the back side (thread entry side) to the tip side (thread exit side). 2 is a separator roller, which is a grooved roller 2 that rotates independently for each turn of yarn 3.
a, 2b, . . . The thread 3 enters from the back side of the heating roller 1 and is sequentially stretched through the grooved rollers 2a, 2b, . go.
FIG. 2 shows a cross section of the heating roller 1. Inside the roller, there are independent heating heaters 4 and 5.
In addition, temperature detection ends 6 and 7 are provided at the tip of the roller and on the back side of the roller, so that the temperature distribution in the length direction of the heating roller can be arbitrarily changed.
（効果）
本考案の装置を用いると加熱ローラーの糸の入
側と出側の位置の組合せにより任意の延伸倍率が
簡単に得られる。更に加熱ローラー表面の温度分
布も任意に変えられるので、一定張力又は延伸温
度上昇と共に減少する張力を加えながら連続的に
温度を昇温させて、延伸と共に時々刻々変化する
微細構造の秩序度に追随した最適延伸温度をとる
ことが出来、高強度・高弾性率繊維を連続的に生
産出来る。また、加熱ローラーを２ケ１組とした
言ゆるネルソンローラー方式に比べ設備費も安価
になる。(Effects) By using the apparatus of the present invention, any desired stretching ratio can be easily obtained by combining the positions of the yarn entry and exit sides of the heating roller. Furthermore, since the temperature distribution on the surface of the heating roller can be changed arbitrarily, the temperature can be raised continuously while applying a constant tension or a tension that decreases as the stretching temperature increases, to follow the degree of order of the microstructure that changes moment by moment as the stretching progresses. It is possible to achieve the optimum drawing temperature, and to continuously produce high-strength, high-modulus fibers. Furthermore, the equipment cost is lower than that of the so-called Nelson roller system, which uses a set of two heating rollers.
第１図は本考案の延伸熱処理装置の概略図、第
２図は延伸熱処理装置の加熱ローラー部の縦断面
図である。
図中１は加熱ローラー、２はセパレーターロー
ラー、２ａ，２ｂは溝付ローラー、４，５は加熱
ヒーター、６，７は温度検出端である。
FIG. 1 is a schematic diagram of a stretching heat treatment apparatus of the present invention, and FIG. 2 is a longitudinal sectional view of a heating roller portion of the stretching heat treatment apparatus. In the figure, 1 is a heating roller, 2 is a separator roller, 2a and 2b are grooved rollers, 4 and 5 are heating heaters, and 6 and 7 are temperature detection ends.
Claims (1)
向に直線的に増大し且つ糸入側から糸出側に向け
てローラー表面温度が高温となる温度勾配を持た
せた加熱ローラーと該加熱ローラーと対応させて
糸のターン毎に独立して回転可能となしたセパレ
ーターローラーとからなる延伸熱処理装置。 A heated roller having a temperature gradient such that the roller diameter increases linearly in the length direction from the yarn entry side to the yarn exit side and the roller surface temperature becomes high from the yarn entry side to the yarn exit side. A drawing heat treatment device consisting of a separator roller that can rotate independently for each turn of the yarn in correspondence with a heating roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10008583U JPS609979U (en) | 1983-06-30 | 1983-06-30 | Stretching heat treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10008583U JPS609979U (en) | 1983-06-30 | 1983-06-30 | Stretching heat treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS609979U JPS609979U (en) | 1985-01-23 |
| JPH0136921Y2 true JPH0136921Y2 (en) | 1989-11-08 |
Family
ID=30236921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10008583U Granted JPS609979U (en) | 1983-06-30 | 1983-06-30 | Stretching heat treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS609979U (en) |
-
1983
- 1983-06-30 JP JP10008583U patent/JPS609979U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS609979U (en) | 1985-01-23 |
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