JPS5926507A - Spinneret - Google Patents
SpinneretInfo
- Publication number
- JPS5926507A JPS5926507A JP13290282A JP13290282A JPS5926507A JP S5926507 A JPS5926507 A JP S5926507A JP 13290282 A JP13290282 A JP 13290282A JP 13290282 A JP13290282 A JP 13290282A JP S5926507 A JPS5926507 A JP S5926507A
- Authority
- JP
- Japan
- Prior art keywords
- polymer
- holes
- spinning
- spinneret
- mandrels
- 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.)
- Granted
Links
Landscapes
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
Description
【発明の詳細な説明】 本発明は紡糸口金の改良に関する。[Detailed description of the invention] This invention relates to improvements in spinnerets.
例えば従来の中空糸紡糸口金は、第1図に示す如くポリ
マー導入孔1とこれに続くC字状の途切れた環状のポリ
マー吐出孔2とより成る紡糸孔3を多数等間隔に有する
もので、この中空糸紡糸口金4のポリマー吐出孔2より
吐出される溶解ポリマーは紡糸直後に断面C字状の両端
縁が溶着して第2図に示す如く円形の中空糸5となるも
のである。For example, a conventional hollow fiber spinneret has a large number of equally spaced spinning holes 3 consisting of a polymer introduction hole 1 and a C-shaped interrupted annular polymer discharge hole 2, as shown in FIG. Immediately after spinning, the dissolved polymer discharged from the polymer discharge hole 2 of the hollow fiber spinneret 4 has both ends of a C-shaped cross section welded to form a circular hollow fiber 5 as shown in FIG.
ところで上記中空糸紡糸口金4は、ポリマー吐出孔2の
内側の芯金6及びその連結部7の上面が平坦で、しかも
連結部7の幅が細く弱いので、使用当初は第2図に示す
如き正常な中空糸5を得ることができるが、長期間使用
すると、溶解ポリマーの高熱と高い紡糸圧力により芯金
6が第3図に示す如く変形して垂れ下がり、第4図aに
示す如く肉厚が周方向で差のある。つまり芯ずれした異
常な中空糸5′が得られるものである。さらに芯金6の
垂れ下がりが進行すると、第3図の鎖線の如く脱落し、
その結果第4図すに示す如き異常な中実糸5〃が得られ
るものである。By the way, in the above hollow fiber spinneret 4, the upper surface of the core bar 6 and its connection part 7 inside the polymer discharge hole 2 are flat, and the width of the connection part 7 is thin and weak. Normal hollow fibers 5 can be obtained, but if used for a long period of time, the core bar 6 will deform and sag as shown in FIG. 3 due to the high heat of the melted polymer and high spinning pressure, and the thickness will increase as shown in FIG. There is a difference in the circumferential direction. In other words, an abnormally misaligned hollow fiber 5' is obtained. As the core bar 6 continues to sag, it falls off as shown by the chain line in Figure 3.
As a result, an abnormal solid yarn 5 as shown in FIG. 4 is obtained.
本発明はかかる従来の中空糸紡糸口金のように吐出孔の
一部が途切れた環状の異形吐出孔を有する紡糸口金の欠
点を解決すべくなされたものであり、ポリマー吐出孔の
内側の芯金が決して変形。The present invention has been made in order to solve the disadvantages of spinnerets having an annular irregularly shaped discharge hole with a part of the discharge hole interrupted, such as the conventional hollow fiber spinneret. But never deformed.
脱落することのない紡糸口金を提供せんとするものであ
る。The object is to provide a spinneret that will not fall off.
以下本発明による紡糸口金の実施例を図によって説明す
ると、第5図に示す如くポリマー導入孔lとこれに続く
C字状の途切れた環状のポリマ−吐出孔2とより成る紡
糸孔3を多数等間隔に有する中空糸紡糸口金4′に於い
て、前記ポリマー導入孔1の下部内周面からポリマー吐
出孔2の内側の芯金−6の上面まで芯金6の連結部7を
経由して緩かな円弧状の支持部8を一体に形成して成る
ものである。Hereinafter, an embodiment of the spinneret according to the present invention will be described with reference to the drawings. As shown in FIG. In the hollow fiber spinnerets 4' arranged at regular intervals, from the lower inner circumferential surface of the polymer introduction hole 1 to the upper surface of the core bar 6 inside the polymer discharge hole 2 via the connecting portion 7 of the core bar 6. It is formed by integrally forming a support portion 8 in the shape of a gentle arc.
前記円弧状の支持部8の上面形状は、角形となっている
が、紡糸時の溶解ポリマーの抵抗を減少する上では山形
成いは円弧状になした方が好適である。Although the upper surface shape of the arc-shaped support portion 8 is square, it is preferable to form a mountain or an arc shape in order to reduce the resistance of the dissolved polymer during spinning.
かように構成された本発明の中空糸紡糸口金4は、ポリ
マー吐出孔2の内側の芯金6及びその芯金6の連結部7
の上面にポリマー導入孔lの下部内周−に連なる円弧状
の支持部8が一体に設けられて、芯金6が強固に紡糸孔
3の内面に保持されているので、紡糸時溶解ポリマーの
^熱と^い紡糸圧力を受けても芯金6は全く変形せず、
長時間草5
使用しても締金6は垂れ下がったり脱落したりすること
がない。従ってポリマー吐出孔2より吐出される溶解ポ
リマーは紡糸直後に断面C字状の両端縁が溶着されて第
2図に示す如く内周と外周が同君で、周方向の肉厚の均
一な正常な中空糸5が得られる。The hollow fiber spinneret 4 of the present invention configured as described above has a core bar 6 inside the polymer discharge hole 2 and a connecting portion 7 of the core bar 6.
An arc-shaped support part 8 connected to the lower inner periphery of the polymer introduction hole 1 is integrally provided on the upper surface, and the core bar 6 is firmly held on the inner surface of the spinning hole 3, so that the dissolved polymer is not absorbed during spinning. Even when subjected to heat and spinning pressure, the core metal 6 does not deform at all,
Long-term use 5 The clamp 6 does not sag or fall off even after use. Therefore, immediately after spinning, the melted polymer discharged from the polymer discharge hole 2 has a C-shaped cross section, and both edges are welded together, so that the inner and outer circumferences are the same as shown in Figure 2, and the wall thickness in the circumferential direction is uniform. A hollow fiber 5 is obtained.
上記実施例は溶解紡糸用の中空糸紡糸口金4′の場合で
あるが、第6図に示す如く湿式紡糸用の中空糸紡糸口金
4″の場合もある。Although the above embodiment is a case of a hollow fiber spinneret 4' for melt spinning, a hollow fiber spinneret 4'' for wet spinning may also be used as shown in FIG.
また本発明では、第7図及び第8図に示す如く吐出孔の
一部が途切れた環状の異形吐出孔であれば、中空糸用に
限らず同じ効果が得られる。Further, in the present invention, the same effect can be obtained not only for hollow fibers but also for hollow fibers as long as the discharge hole has an annular irregular shape with a part of the discharge hole cut off as shown in FIGS. 7 and 8.
以上の説明で判るように本発明の紡糸口金は、長期間使
用してもポリマー吐出孔の内側の芯金が決して変形、脱
落することがないので、常に正常な中空糸又は異形糸を
得ることができるので、従来の紡糸口金にとって代わる
ことのできる画期的なものと言える。As can be seen from the above explanation, the spinneret of the present invention never deforms or falls off the core bar inside the polymer discharge hole even if used for a long period of time, so that normal hollow fibers or irregularly shaped fibers can always be obtained. It can be said to be a revolutionary product that can replace conventional spinnerets.
第1図は従来の中空糸紡糸口金の要部を示す一部破断斜
視図、第2図は正常な中空糸の横断面図、第3図は従来
の中空糸紡糸口金に於いてポリマー吐出孔内側の芯金が
変形して垂れ下がった状態を示す要部縦断面図、第4図
aは第3図に示されるポリマー吐出孔より吐出紡糸され
る異常な中空糸の横断面図、同図すは第3図の鎖線の如
く芯金の脱落したポリマー吐出孔よ−り吐出紡糸される
異常な中実糸の横断面図、第5図は本発明の中空糸紡糸
口金の要部を示す一部破断斜視図、第6図は湿式紡糸用
の本発明による中空糸紡糸口金の要部を示す縦断面図、
第7図及び第8図は本発明に係るポリマー吐出孔の他の
例を示す図である。
■〜−−−−−ポリマー導入孔、2−−−−−ポリマー
吐出孔、3−−−一紡糸孔、4’、4”−一本発明の中
空糸紡糸口金、6−−−−−芯金、7−〜−−−一連結
部、81. 支持部。
出願人 田中貴金属工業株式会社
し、ユビ
第2図
第4図0
第4図bFigure 1 is a partially cutaway perspective view showing the main parts of a conventional hollow fiber spinneret, Figure 2 is a cross-sectional view of a normal hollow fiber, and Figure 3 shows the polymer discharge hole in a conventional hollow fiber spinneret. Fig. 4a is a longitudinal cross-sectional view of the main part showing a state in which the inner core bar is deformed and hanging down, and Fig. 4a is a cross-sectional view of the abnormal hollow fiber spun from the polymer discharge hole shown in Fig. 3 is a cross-sectional view of an abnormal solid fiber discharged and spun from the polymer discharge hole where the core metal has fallen off, as shown by the chain line in FIG. 3. FIG. FIG. 6 is a longitudinal sectional view showing the main parts of the hollow fiber spinneret according to the present invention for wet spinning;
FIGS. 7 and 8 are diagrams showing other examples of polymer discharge holes according to the present invention. ■~---Polymer introduction hole, 2---Polymer discharge hole, 3---One spinning hole, 4', 4''-One Hollow fiber spinneret of the present invention, 6------ Core metal, 7----- series connection part, 81. Support part. Applicant Tanaka Kikinzoku Kogyo Co., Ltd., Ubi Figure 2 Figure 4 0 Figure 4 b
Claims (1)
ー吐出孔とより成る紡糸孔を有する紡糸口金に於いて、
前記ポリマー導入孔のF部内周面からポリマー吐出孔の
内側の芯金の上面まで支持部を一体に形成したことを特
徴とする紡糸口金。In a spinneret having a spinning hole consisting of a polymer introduction hole and a partially interrupted annular polymer discharge hole,
A spinneret characterized in that a support portion is integrally formed from the inner peripheral surface of the F part of the polymer introduction hole to the upper surface of the core bar inside the polymer discharge hole.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13290282A JPS5926507A (en) | 1982-07-29 | 1982-07-29 | Spinneret |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13290282A JPS5926507A (en) | 1982-07-29 | 1982-07-29 | Spinneret |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5926507A true JPS5926507A (en) | 1984-02-10 |
JPH02448B2 JPH02448B2 (en) | 1990-01-08 |
Family
ID=15092210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13290282A Granted JPS5926507A (en) | 1982-07-29 | 1982-07-29 | Spinneret |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5926507A (en) |
-
1982
- 1982-07-29 JP JP13290282A patent/JPS5926507A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPH02448B2 (en) | 1990-01-08 |
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