JPH022963B2 - - Google Patents
Info
- Publication number
- JPH022963B2 JPH022963B2 JP57136688A JP13668882A JPH022963B2 JP H022963 B2 JPH022963 B2 JP H022963B2 JP 57136688 A JP57136688 A JP 57136688A JP 13668882 A JP13668882 A JP 13668882A JP H022963 B2 JPH022963 B2 JP H022963B2
- Authority
- JP
- Japan
- Prior art keywords
- stock solution
- irregularly shaped
- discharge hole
- spinning
- shaped yarn
- 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 - Lifetime
Links
- 239000011550 stock solution Substances 0.000 claims description 39
- 238000009987 spinning Methods 0.000 claims description 27
- 230000001788 irregular Effects 0.000 claims description 5
- 239000000243 solution Substances 0.000 description 12
- 238000004804 winding Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000002074 melt spinning Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000012086 standard solution Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Description
【発明の詳細な説明】
本発明は、溶融紡糸法により異形糸を紡糸する口
金の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a spinneret for spinning irregularly shaped yarn by a melt spinning method.
従来、溶融紡糸法により異形糸を紡糸する口金
の原液吐出孔の形状は、例えば第１図に示す如く
単一の異形の原液吐出孔１であり、このような異
形の原液吐出孔１から紡糸される糸は、第２図に
示す如く中央部が膨らみ且つ角部が丸みを帯びた
異形糸２となり、原液吐出孔１に近似したシヤー
プな角部を有する異形糸を得ることができなかつ
た。 Conventionally, the shape of the solution discharge hole of a spinneret for spinning irregularly shaped yarn by the melt spinning method is, for example, a single irregularly shaped solution discharge hole 1 as shown in FIG. As shown in FIG. 2, the yarn produced was an irregularly shaped yarn 2 with a swollen center and rounded corners, making it impossible to obtain an irregularly shaped yarn with sharp corners similar to the stock solution discharge hole 1. .
このような問題を解決すべく、異形の原液吐出
孔１の各辺を複数個に分割した第３図に示す如き
原液分割吐出孔１′を有する口金なども用いられ
ている。 In order to solve this problem, a cap having an irregularly shaped stock solution discharge hole 1' having a plurality of divided solution discharge holes 1' as shown in FIG.
この原液分割吐出孔１′は、異形糸の中央部が
膨らむことを予想して空中での溶着、所謂バルー
ニング現象を利用して望むべきシヤープな角部を
持つ異形糸を得んとする為のものであるが、この
ような原液分割吐出孔１′を有する口金で紡糸す
る場合には、原液吐出量、紡糸圧力、巻取り速度
などの条件設定にかなりの難しさがあり、例えば
紡糸圧力が高過ぎたり、原液吐出量が多くなると
第１図に示される単一の異形の原液吐出孔１より
紡糸される第２図の異形糸２と差異が無くなる。
また原液吐出量が少なく或いは巻取り速度が早く
なると、極細の部分で溶着しているか、或いは完
全に分離してしまうことになる。さらに最適条件
で得られた異形糸であつても各辺の中央部は膨ら
んだ糸となる。 This stock solution dividing discharge hole 1' is designed to obtain irregularly shaped yarn with the desired sharp corners by welding in mid-air, the so-called ballooning phenomenon, in anticipation of the swelling of the center of the irregularly shaped yarn. However, when spinning with such a spinneret having the stock solution split discharge hole 1', it is quite difficult to set conditions such as the stock solution discharge amount, spinning pressure, and winding speed. If it is too high or the amount of stock solution discharged is too large, there will be no difference from the irregularly shaped yarn 2 shown in FIG. 2, which is spun from the single irregularly shaped stock solution discharge hole 1 shown in FIG.
Furthermore, if the amount of raw solution discharged is small or the winding speed is high, the parts will be welded together at extremely thin parts or will be completely separated. Furthermore, even if the irregularly shaped yarn is obtained under optimal conditions, the center portion of each side will be swollen.
本発明は斯かる諸事情に鑑みなされたもので、
中央部に膨らみが無く、シヤープな角度を有する
異形糸を紡糸することのできる口金を提供せんと
するものである。 The present invention was made in view of such circumstances,
It is an object of the present invention to provide a spinneret capable of spinning irregularly shaped yarn having a sharp angle and no bulge in the center.
本発明の異形糸紡糸用口金は、横断面異形で且
つその異形の中央部で複数に分割されている原液
分割吐出孔を有する異形糸紡糸用口金に於いて、
前記原液分割吐出孔に囲まれた中央部に原液補助
吐出孔が設けられていることを特徴とするもので
ある。 The irregularly shaped yarn spinning nozzle of the present invention has an irregular cross-sectional shape and has a solution dividing discharge hole that is divided into a plurality of parts at the center of the irregular shape.
The present invention is characterized in that an auxiliary stock solution discharge hole is provided in a central portion surrounded by the stock solution division discharge holes.
以下本発明による異形糸紡糸用口金の一実施例
を第４図及び第５図によつて説明すると、原液導
入孔３に連なる横断面十字形且つ十字形の各辺が
中央部で分割されて不連続となつている原液分割
吐出孔１′を有する異形糸紡糸用口金に於いて、
前記原液分割吐出孔１′に囲まれた中央部に、円
形の原液補助吐出孔４が設けられている。 Hereinafter, an embodiment of the irregularly shaped yarn spinning nozzle according to the present invention will be described with reference to FIGS. 4 and 5. The cross section is cruciform, which is connected to the stock solution introduction hole 3, and each side of the cruciform is divided at the center. In a spinneret for irregularly shaped yarn having discontinuous stock solution dividing discharge holes 1',
A circular undiluted solution auxiliary discharge hole 4 is provided in the center surrounded by the undiluted solution divided discharge hole 1'.
このように原液分割吐出孔１′と原液補助吐出
口４を有する異形糸紡糸用口金で紡糸すると、原
液は原液導入孔３より各原液分割吐出孔１′及び
原液補助吐出口４に入り、これら吐出孔１′，４
より吐出されるが、この吐出の際各原液分割吐出
孔１′の中央部寄りの端縁から出た原液は原液補
助吐出孔４から吐出された原液に強制的に連なつ
て一体となる。従つて、原液吐出量、紡糸圧力、
巻取り速度などの紡糸条件に変動があつても中央
部に膨らみが無く、シヤープな角度を有する第６
図に示す如き断面十字形の異形糸２′を容易に得
ることができる。 When spinning is performed using the irregularly shaped yarn spinning nozzle having the stock solution dividing discharge hole 1' and the stock solution auxiliary discharge port 4, the stock solution enters each stock solution dividing discharge hole 1' and the stock solution auxiliary discharge port 4 through the stock solution introduction hole 3. Discharge hole 1', 4
During this discharge, the stock solution discharged from the edge near the center of each stock solution division discharge hole 1' is forcibly connected to the stock solution discharged from the stock solution auxiliary discharge hole 4 and becomes one body. Therefore, the raw solution discharge amount, spinning pressure,
Even if the spinning conditions such as winding speed change, there is no bulge in the center, and the sixth yarn has a sharp angle.
The irregularly shaped yarn 2' having a cross-shaped cross section as shown in the figure can be easily obtained.
次に本発明の効果を明瞭にする為、その具体的
な実施例と従来例について説明する。 Next, in order to clarify the effects of the present invention, specific examples and conventional examples thereof will be described.
実施例
第４図及び第５図に示す如く直径２mm、深さ
9.5mmの原液導入孔３に連なる横断面十字形で且
つ十字形の各辺が中央部で分割されて不連続とな
つている幅0.1mm、長さ0.5mm、深さ0.5mmの原液分
割吐出孔１′を72個有する板厚10mmのステンレス
鋼より成る異形糸紡糸用口金に於いて、前記原液
分割吐出孔１′に囲まれた中央部に、直径0.08mm
の原液補助吐出口４を設けた異形糸紡糸用口金。Example: As shown in Figures 4 and 5, the diameter is 2 mm and the depth is
Divided discharge of stock solution with a width of 0.1mm, length of 0.5mm, and depth of 0.5mm, which has a cross-shaped cross section connected to the 9.5mm stock solution introduction hole 3, and each side of the cross is divided at the center, making it discontinuous. In the spinneret for irregularly shaped yarn made of stainless steel with a plate thickness of 10 mm and having 72 holes 1', a diameter of 0.08 mm is placed in the center surrounded by the stock solution dividing discharge holes 1'.
A spinneret for spinning irregularly shaped yarn, which is provided with an auxiliary discharge port 4 for stock solution.
従来例
前記実施例と同一寸法、形状の原液導入孔３及
びそれに連なる原液分割吐出孔１′を72個有する
板厚10mmのステンレス鋼より成り、原液分割吐出
孔１′に囲まれた中央部に原液補助吐出口４を有
しない異形糸紡糸用口金。Conventional Example Made of a stainless steel plate with a thickness of 10 mm and having 72 stock solution introduction holes 3 and continuous solution split discharge holes 1' having the same dimensions and shape as those of the previous embodiment. A spinneret for irregularly shaped yarn spinning that does not have a stock solution auxiliary discharge port 4.
これら実施例及び従来例の異形糸紡糸用口金に
て、原液吐出量１c.c.／sec、紡糸圧力300ｇ／mm2、
巻取り速度20ｍ／secの条件でポリプロピレンを
溶融紡糸した処、従来例の異形糸紡糸用口金から
紡糸された糸は、第２図に示す如く中央部が膨ら
み、角部が丸みを帯びた断面形状の異形糸２とな
つたのに対し、実施例の異形糸紡糸用口金から紡
糸された糸は、第６図に示す如く中央部に膨らみ
が無く、シヤープな角部を有する断面形状の異形
糸２′となつた。また原液吐出量を0.8c.c.／secと
少なくし、巻取り速度を30ｍ／secと速くし、紡
糸圧力は前記を同じ300ｇ／mm2の条件で溶融紡糸
した処、従来例の異形糸紡糸用口金から紡糸され
た糸は、原液分割吐出孔１′毎に分離していたの
に対し、実施例の異形糸紡糸用口金から紡糸され
た糸は、幾分中央部が細くなつてはいたが、第６
図に示す異形糸２′と大差は無かつた。 With the irregularly shaped yarn spinning spinnerets of these examples and conventional examples, the stock solution discharge rate was 1 c.c./sec, the spinning pressure was 300 g/mm 2 ,
When polypropylene was melt-spun at a winding speed of 20 m/sec, the yarn spun from the conventional irregular-shaped yarn spinning nozzle had a cross section with a swollen center and rounded corners, as shown in Figure 2. In contrast, the yarn spun from the irregular-shaped yarn spinning nozzle of the example had an irregular cross-sectional shape with no bulge in the center and sharp corners, as shown in FIG. It became thread 2'. In addition, the raw solution discharge amount was reduced to 0.8 cc/sec, the winding speed was increased to 30 m/sec, and the spinning pressure was the same as above, 300 g/ mm2 . The yarn spun from the spinneret was separated by each stock solution dividing discharge hole 1', whereas the yarn spun from the irregularly shaped yarn spinning nozzle of the example was somewhat thinner in the center; 6th
There was no major difference from the irregularly shaped yarn 2' shown in the figure.
尚、上記実施例は断面十字形の異形糸を紡糸す
る場合の口金であるが、断面Ｔ字形、Ｙ字形、星
形等の異形糸を紡糸する場合の口金であつても良
いものである。また原液分割吐出孔１′に囲まれ
た中央部に設ける原液補助吐出孔４は断面円形に
限らず、方形、菱形、三角形等紡糸する異形糸の
形状に応じて適宜変更しても良いものである。 Although the above-mentioned embodiment is a spinneret for spinning irregularly shaped yarn with a cross-shaped cross section, the spinneret may also be used for spinning irregularly shaped yarns such as a T-shaped, Y-shaped, or star-shaped cross section. Further, the auxiliary stock solution discharge hole 4 provided in the center surrounded by the stock solution split discharge holes 1' is not limited to a circular cross section, and may be changed as appropriate depending on the shape of the irregularly shaped yarn to be spun, such as square, diamond, or triangular. be.
以上詳記した通り本発明の異形糸紡糸用口金に
よれば、原液吐出量、紡糸圧力、巻取り速度など
の紡糸条件に変動があつても、中央部の膨らみの
無いシヤープな角部を有する品質良好な異形糸を
紡糸することができるという優れた効果がある。 As detailed above, according to the spinneret for irregularly shaped yarn of the present invention, even if there are fluctuations in spinning conditions such as stock solution discharge amount, spinning pressure, winding speed, etc., sharp corners with no bulge in the center can be obtained. It has the excellent effect of being able to spin irregularly shaped yarn of good quality.
第１図は従来の異形糸紡糸用口金の原液吐出孔
の一例を示す図、第２図は第１図の原液吐出孔か
ら紡糸された異形糸の断面形状を示す図、第３図
は従来の異形糸紡糸用口金の原液分割吐出孔を示
す図、第４図は本発明の異形糸紡糸用口金の原液
分割吐出孔及び原液補助吐出孔の一例を示す縦断
面図、第５図はその仰面図、第６図は第４，５図
に示される原液分割吐出孔から紡糸された異形糸
の断面形状を示す図である。
１′……原液分割吐出孔、４……原液補助吐出
孔。
Figure 1 is a diagram showing an example of the stock solution discharge hole of a conventional irregular-shaped yarn spinning nozzle, Figure 2 is a diagram showing the cross-sectional shape of irregularly shaped yarn spun from the stock solution discharge hole in Figure 1, and Figure 3 is a conventional FIG. 4 is a longitudinal sectional view showing an example of the solution dividing discharge hole and the solution auxiliary discharge hole of the irregular-shaped yarn spinning spinneret of the present invention, and FIG. The top view and FIG. 6 are diagrams showing the cross-sectional shape of the irregularly shaped yarn spun from the stock solution dividing discharge holes shown in FIGS. 4 and 5. 1'...Standard solution dividing discharge hole, 4...Stock solution auxiliary discharge hole.
Claims (1)
分割されている原液分割吐出孔を有する異形糸紡
糸用口金に於いて、前記原液分割吐出孔に囲まれ
た中央部に原液補助吐出孔が設けられていること
を特徴とする異形糸紡糸用口金。1. In an irregularly shaped yarn spinning nozzle having an irregular cross-sectional shape and a stock solution dividing discharge hole divided into a plurality of parts at the center of the irregular shape, a stock solution auxiliary discharge hole is provided in the central part surrounded by the stock solution dividing discharge hole. What is claimed is: 1. A spinneret for spinning irregularly shaped yarn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13668882A JPS5926513A (en) | 1982-08-05 | 1982-08-05 | Spinneret for spinning modified cross-section yarn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13668882A JPS5926513A (en) | 1982-08-05 | 1982-08-05 | Spinneret for spinning modified cross-section yarn |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5926513A JPS5926513A (en) | 1984-02-10 |
| JPH022963B2 true JPH022963B2 (en) | 1990-01-22 |
Family
ID=15181141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13668882A Granted JPS5926513A (en) | 1982-08-05 | 1982-08-05 | Spinneret for spinning modified cross-section yarn |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5926513A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1358092A (en) * | 1962-05-28 | 1964-04-10 | Snia Viscosa | Artificial and synthetic fibers, of profiled sections, obtained by dies for bonding elementary fibers after extrusion |
-
1982
- 1982-08-05 JP JP13668882A patent/JPS5926513A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1358092A (en) * | 1962-05-28 | 1964-04-10 | Snia Viscosa | Artificial and synthetic fibers, of profiled sections, obtained by dies for bonding elementary fibers after extrusion |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5926513A (en) | 1984-02-10 |
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