JP2573980B2 - Relaxation heat treatment method for yarn - Google Patents
Relaxation heat treatment method for yarnInfo
- Publication number
- JP2573980B2 JP2573980B2 JP63018300A JP1830088A JP2573980B2 JP 2573980 B2 JP2573980 B2 JP 2573980B2 JP 63018300 A JP63018300 A JP 63018300A JP 1830088 A JP1830088 A JP 1830088A JP 2573980 B2 JP2573980 B2 JP 2573980B2
- Authority
- JP
- Japan
- Prior art keywords
- heater
- yarn
- heat treatment
- heating passage
- length
- 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 - Fee Related
Links
- 238000010438 heat treatment Methods 0.000 title claims description 38
- 238000000034 method Methods 0.000 title claims description 9
- 229920000728 polyester Polymers 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 4
- 230000002040 relaxant effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 230000004927 fusion Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
- D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
- D02G1/0266—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting false-twisting machines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、糸条の２ヒータ仮撚加工法に関し、特に、
その第２ヒータでの弛緩熱処理方法に関する。Description: TECHNICAL FIELD The present invention relates to a two-heater false twisting method for yarns,
The present invention relates to a relaxation heat treatment method using the second heater.
（従来の技術） 従来から、低伸縮性、即ち巻縮率（TC）の低い仮撚加
工糸を得るには、２ヒータ仮撚加工法が用いられてお
り、加工速度500m/分以上では、通常、第２ヒータとし
て、ヒータ長1.4〜1.6m、加熱温度150〜240℃で内径が
3.5〜4.5mm程度のパイプヒータが使用されている。(Prior art) Conventionally, a two-heater false twisting method has been used to obtain a false twisted yarn having low elasticity, that is, a low crimp ratio (TC), and at a processing speed of 500 m / min or more, Usually, the second heater has a heater length of 1.4 to 1.6 m, a heating temperature of 150 to 240 ° C, and an inner diameter of
A pipe heater of about 3.5 to 4.5 mm is used.
（発明が解決しようとする課題） しかしながら、かかる第２ヒータを使用した場合、糸
条は糸ゆれ等で実質的に接触走行しており、例えば、ポ
リエチレンテレフタレートフィラメント150de/48filsで
は、オーバーフィード率は高々９％程度までしか上げる
ことができず、加熱温度も230℃程度までが限界で、そ
れ以上に高くすると融着が発生するという問題があっ
た。従って、得られた仮撚加工糸の捲縮率（TC）も、15
％前後が限界で、それよりも低い捲縮率（TC）の加工糸
を得ることは極めて困難であった。(Problems to be Solved by the Invention) However, when such a second heater is used, the yarn substantially runs in contact with the yarn due to twisting or the like. For example, in the case of the polyethylene terephthalate filament 150de / 48fils, the overfeed ratio is The heating temperature can be increased only up to about 9% at most, and the heating temperature is limited to about 230 ° C., and if it is higher than that, there is a problem that fusion occurs. Therefore, the crimp rate (TC) of the obtained false twisted yarn is also 15%.
% Is a limit, and it is extremely difficult to obtain a processed yarn having a lower crimp rate (TC).
一法、捲縮率（TC）を低下させるには、第２ヒータで
の処理時間を長くすること、即ち第２ヒータの長さを長
くすることも考えられるが、ヒータ長を長くすること
は、仮撚機、延伸仮撚機の機械高さを高くすることにな
り、作業性が悪化するので不適当である。One method is to reduce the crimp rate (TC) by increasing the processing time in the second heater, that is, by increasing the length of the second heater. In this case, the machine height of the false twisting machine and the stretching false twisting machine is increased, and the workability is deteriorated.
本発明の目的は、このような従来技術の問題点を解消
し、第２ヒータのヒータ長を従来の第２ヒータ長さより
も短くし、しかも500m/分以上の高速で低伸縮性の仮撚
加工糸を得る方法を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to solve such a problem of the prior art, to make the heater length of the second heater shorter than the conventional second heater length, and to provide a high-speed, low-stretch false twist of 500 m / min or more. It is to provide a method for obtaining a processed yarn.
（課題を解決するための手段） 本発明者等は、上記目的を達成すべく鋭意検討を重ね
た結果、第２ヒータとして、高温の非接触式ヒータを用
いればよいことを見出し本発明に到達した。(Means for Solving the Problems) As a result of intensive studies to achieve the above object, the present inventors have found that a high-temperature non-contact heater may be used as the second heater, and reached the present invention. did.
即ち、本発明は、第１ヒータにより熱処理するととも
に仮撚加工したポリエステル繊維糸条を、更に第２ヒー
タにより弛緩熱処理する糸条の弛緩熱処理方法であっ
て、前記第２ヒータとして、前記糸条の走行方向に延在
する糸条導入用スリットが形成された長さ0.6〜1mの加
熱通路を有する非接触加熱ヒータを準備し、該ヒータの
温度を前記加熱通路の長さに応じて240〜400℃の範囲内
にした状態で、前記糸条を、前記第２ヒータの加熱通路
の内壁に対し非接触の状態を保ち、かつ前記加熱通路内
で500m/分以上の走行速度で弛緩走行させて、該糸条を
弛緩熱処理することを特徴とする合成繊維糸条の弛緩熱
処理方法である。That is, the present invention provides a method for relaxing heat treatment of a yarn in which a polyester fiber yarn that has been heat-treated by a first heater and has been false-twisted is further subjected to a relaxation heat treatment by a second heater. A non-contact heating heater having a heating passage of 0.6 to 1 m in length, in which a yarn introduction slit extending in the traveling direction of the heating passage is prepared, and the temperature of the heater is set to 240 to In the state where the temperature is in the range of 400 ° C., the yarn is allowed to relax and travel at a traveling speed of 500 m / min or more in the heating passage while maintaining a non-contact state with the inner wall of the heating passage of the second heater. And a heat treatment for relaxing the synthetic fiber yarn.
本発明においては、第２ヒータに非接触ヒータを用
い、そのヒータ長を0.6〜1mとする。更に、第２ヒータ
の温度を240〜400℃とすることが必要である。第２ヒー
タのヒータ長が0.6m未満では捲縮率（TC）を低下させよ
うとすると非常に高温で加熱する必要があり、しかもヒ
ータ長の変化に対する捲縮率の変化が大きく、錘間差が
出易い。また1mを越えると、ヒータ内の糸ゆれが増大し
て、オーバーフィード率を高めることができず、またヒ
ータ長が長くなるほど、第２ヒータ内では熱対流を伴っ
た雰囲気中で、しかもオーバーフィードという比較的不
安定な張力状態で熱処理されるので、走行状態が不安定
となり、ヒータ中で揺動が生じ、セット斑を起こし易く
なるために、ヒータの加熱温度を上げることができな
い。In the present invention, a non-contact heater is used as the second heater, and the heater length is set to 0.6 to 1 m. Further, the temperature of the second heater needs to be 240 to 400 ° C. If the heater length of the second heater is less than 0.6 m, it is necessary to heat at a very high temperature in order to lower the crimp rate (TC), and the change in the crimp rate with respect to the change in the heater length is large. Is easy to come out. On the other hand, if it exceeds 1 m, the yarn twist in the heater increases, and the overfeed rate cannot be increased. In addition, as the heater length increases, in the second heater, in an atmosphere accompanied by thermal convection, Since the heat treatment is performed in a relatively unstable tension state, the running state becomes unstable, the rocking occurs in the heater, and the set tends to be uneven, so that the heating temperature of the heater cannot be increased.
ヒータ長0.6mの場合、最大加熱温度は400℃程度であ
り、ヒータ長1mの場合、最大加熱温度は250℃程度とな
る。When the heater length is 0.6 m, the maximum heating temperature is about 400 ° C., and when the heater length is 1 m, the maximum heating temperature is about 250 ° C.
なお、前記糸条を加熱通路の前後でガイドし、第２ヒ
ータの加熱通路の内壁に対し非接触の状態を保つのが好
ましい。It is preferable that the yarn be guided before and after the heating passage so as to maintain a non-contact state with the inner wall of the heating passage of the second heater.
（実施例） 第１図は本発明において用いる第２ヒータの例を示す
縦断面図、第２図はそのＡ−Ａ線矢視横断面図であり、
シーズヒータ１の両側に伝熱体２、３を設け、一方の伝
熱体３には直径10mmの糸条走行路４（加熱通路）が穿設
され、その前面に糸条導入用のスリット５が設けられて
いる。６は保温材、７、８はポリエステル繊維（ポリエ
ステル系合成繊維）の糸条Ｙが糸条走行路４の内壁に接
触しないように保持するためのガイド（糸ガイド）であ
る。(Example) FIG. 1 is a longitudinal sectional view showing an example of a second heater used in the present invention, and FIG. 2 is a transverse sectional view taken along the line AA of FIG.
Heat transfer bodies 2 and 3 are provided on both sides of the sheathed heater 1, and one heat transfer body 3 is provided with a yarn running path 4 (heating passage) having a diameter of 10 mm, and a slit 5 for introducing a yarn on the front surface thereof. Is provided. Reference numeral 6 denotes a heat insulating material, and reference numerals 7 and 8 denote guides (yarn guides) for holding the yarn Y of the polyester fiber (polyester synthetic fiber) so as not to contact the inner wall of the yarn traveling path 4.
以下、具体的な実施例により本発明を更に詳細に説明
する。Hereinafter, the present invention will be described in more detail with reference to specific examples.
実施例１〜３、比較例１、２ 150de/48filsのポリエチレンテレフタレートフィラメ
ントを仮撚板2,300T/m、第１ヒータ温度210℃（ヒータ
長2.5mの接触式ヒータ）、加工速度600m/分で仮撚加工
した後、第１図及び第２図に示した第２ヒータで弛緩熱
処理して巻取った。このときの第２ヒータのヒータ長及
び温度を次表に示すように種々変更し、その際可能な最
大オーバーフィード率で弛緩熱処理した。得られた糸条
の捲縮率（TC）は、次表に示す通りであった。なお弛緩
熱処理の速度は600m/分であった。Examples 1 to 3 and Comparative Examples 1 and 2 Polyethylene terephthalate filaments of 150 de / 48 fils were false-twisted at 2,300 T / m, the first heater temperature was 210 ° C. (contact type heater having a heater length of 2.5 m), and the processing speed was 600 m / min. After the false twisting, it was relaxed and heat-treated by the second heater shown in FIGS. 1 and 2 and wound up. At this time, the heater length and temperature of the second heater were variously changed as shown in the following table, and the relaxation heat treatment was performed at the maximum possible overfeed rate. The crimp rate (TC) of the obtained yarn was as shown in the following table. The speed of the relaxation heat treatment was 600 m / min.
比較例３ 実施例１と同じ仮撚条件で、第２ヒータとして、ヒー
タ長1.4mの接触式ヒータを用いたところ、オーバーフィ
ード率を最大にすることのできるヒータ温度は230℃で
あり、このときのオーバーフィード率は９％であって、
９％を越えるとローラに糸条に巻取られ運転不可能とな
った。得られた糸条の捲縮率（TC）は15.0と高い値を示
した。 Comparative Example 3 Under the same false twist conditions as in Example 1, when a contact type heater having a heater length of 1.4 m was used as the second heater, the heater temperature at which the overfeed rate could be maximized was 230 ° C. When the overfeed rate is 9%,
When it exceeded 9%, it was wound on a roller and became impossible to operate. The crimp rate (TC) of the obtained yarn showed a high value of 15.0.
以上の結果から明らかなように、第２ヒータに非接触
ヒータを用い、そのヒータ長を0.6〜1m、温度を240〜40
0℃とすることによって、オーバーフィード率を高く
し、バルキー性を向上させるとともに、捲縮率（TC）の
低い仮撚加工糸を得ることができる。As is clear from the above results, a non-contact heater was used as the second heater, the heater length was 0.6 to 1 m, and the temperature was 240 to 40.
By setting the temperature to 0 ° C., a false twisted yarn having a low crimp rate (TC) can be obtained while increasing the overfeed rate and improving the bulky property.
（発明の効果） 請求項１に記載の発明によれば、次のような効果を奏
することができる。(Effects of the Invention) According to the invention described in claim 1, the following effects can be obtained.
（１）弛緩熱処理ゾーンのオーバーフィード率を大きく
して運転することができ、バルキー性の高い糸条を得る
ことができる。(1) The operation can be performed while increasing the overfeed rate in the relaxation heat treatment zone, and a yarn with high bulkiness can be obtained.
（２）第２ヒータの加熱通路に対し糸条導入スリットを
通してポリエステル繊維糸条を導入するとともにこれを
加熱通路の内壁に対し非接触状態に保つことから、第２
ヒータを高温にして高速加工することができ、従来、捲
縮率（TC）が15％程度であったものを８％程度まで下げ
ることができる。(2) Since the polyester fiber yarn is introduced into the heating passage of the second heater through the yarn introduction slit and kept in a non-contact state with the inner wall of the heating passage,
High-speed processing can be performed with the heater at a high temperature, and the crimp rate (TC), which was conventionally about 15%, can be reduced to about 8%.
（３）第２ヒータのヒータ長を従来の1.4〜1.6mから1m
以下とコンパクトにできる。それ故仮撚機、延伸仮撚機
等の機械の高さを低くすることができる。(3) The heater length of the second heater is changed from 1.4 to 1.6 m to 1 m
The following can be made compact. Therefore, the height of machines such as a false twisting machine and a stretch false twisting machine can be reduced.
さらに、請求項２に記載のように、糸条を加熱通路の
前後でガイドするようにすれば、第２ヒータの加熱通路
の内壁に対し糸条を確実に非接触状態に保って安定走行
させることができ、上述の効果をより顕著にすることが
できる。Furthermore, if the yarn is guided before and after the heating passage as described in claim 2, the yarn is reliably kept in a non-contact state with respect to the inner wall of the heating passage of the second heater, and the yarn runs stably. Therefore, the above-described effect can be made more remarkable.
第１図は本発明において用いる第２ヒータの例を示す縦
断面図、第２図はそのＡ−Ａ線矢視横断面図である。 １……シーズヒータ、 ２、３……伝熱体、 ４……糸条走行路（加熱通路）、 ５……糸条導入用スリット、 ６……保温材、 ７、８……ガイド、 Ｙ……糸条。FIG. 1 is a longitudinal sectional view showing an example of a second heater used in the present invention, and FIG. 2 is a transverse sectional view taken along line AA of FIG. 1 ... Seed heater, 2, 3 ... Heat transfer body, 4 ... Yarn running path (heating passage), 5 ... Yarn introduction slit, 6 ... Heat insulating material, 7, 8 ... Guide, Y ...... Thread.
Claims (2)
加工したポリエステル繊維糸条を、更に第２ヒータによ
り弛緩熱処理する糸条の弛緩熱処理方法であって、 前記第２ヒータとして、前記糸条の走行方向に延在する
糸条導入用スリットが形成された長さ0.6〜1mの加熱通
路を有する非接触加熱ヒータを準備し、 該ヒータの温度を前記加熱通路の長さに応じて240〜400
℃の範囲内にした状態で、 前記糸条を、前記第２ヒータの加熱通路の内壁に対し非
接触の状態を保ち、かつ前記加熱通路内で500m/分以上
の走行速度で弛緩走行させて、該糸条を弛緩熱処理する
ことを特徴とする糸条の弛緩熱処理方法。1. A method for relaxing heat treatment of a polyester fiber yarn which has been heat-treated by a first heater and which has been false-twisted, and further subjected to a relaxation heat treatment by a second heater. A non-contact heater having a heating path of 0.6 to 1 m in length, in which a yarn introduction slit extending in the running direction is formed, is prepared. The temperature of the heater is set to 240 to 400 in accordance with the length of the heating path.
° C., while keeping the yarn in a non-contact state with respect to the inner wall of the heating passage of the second heater, and relaxed traveling at a traveling speed of 500 m / min or more in the heating passage. And a heat treatment for relaxing the yarn.
し、前記第２ヒータの加熱通路の内壁に対し非接触の状
態を保つことを特徴とする請求項１に記載の糸条の弛緩
熱処理方法。2. The loosening of the yarn according to claim 1, wherein the yarn is guided before and after the heating passage, and is kept in a non-contact state with the inner wall of the heating passage of the second heater. Heat treatment method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63018300A JP2573980B2 (en) | 1988-01-27 | 1988-01-27 | Relaxation heat treatment method for yarn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63018300A JP2573980B2 (en) | 1988-01-27 | 1988-01-27 | Relaxation heat treatment method for yarn |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8018516A Division JP2968202B2 (en) | 1996-02-05 | 1996-02-05 | Filament relaxation heat treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01192840A JPH01192840A (en) | 1989-08-02 |
| JP2573980B2 true JP2573980B2 (en) | 1997-01-22 |
Family
ID=11967761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63018300A Expired - Fee Related JP2573980B2 (en) | 1988-01-27 | 1988-01-27 | Relaxation heat treatment method for yarn |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2573980B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2571180B2 (en) * | 1992-12-08 | 1997-01-16 | 東洋電機株式会社 | Heating device for false twisting |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5112096B2 (en) * | 1972-02-09 | 1976-04-16 | ||
| JPS5921731A (en) * | 1982-07-22 | 1984-02-03 | 東洋紡績株式会社 | Production of set type processed yarn |
-
1988
- 1988-01-27 JP JP63018300A patent/JP2573980B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01192840A (en) | 1989-08-02 |
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