JPH0121242B2 - - Google Patents
Info
- Publication number
- JPH0121242B2 JPH0121242B2 JP15245781A JP15245781A JPH0121242B2 JP H0121242 B2 JPH0121242 B2 JP H0121242B2 JP 15245781 A JP15245781 A JP 15245781A JP 15245781 A JP15245781 A JP 15245781A JP H0121242 B2 JPH0121242 B2 JP H0121242B2
- Authority
- JP
- Japan
- Prior art keywords
- irregularly shaped
- discharge hole
- stock solution
- shaped yarn
- cross
- 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
- 239000011550 stock solution Substances 0.000 claims description 18
- 238000009987 spinning Methods 0.000 claims description 14
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000002166 wet spinning Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000008961 swelling Effects 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、湿式紡糸法により異形糸を紡糸する
為の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 of a spinneret for spinning irregularly shaped yarn by a wet spinning method.
従来、例えば第１図ａ，ｂ，ｃに夫々示すよう
に部分的に細い部分ｙを有する異形糸Ｈ，H′，
H″を得るには、夫々その異形糸と略相似形の原
液吐出孔を有する口金で紡糸していた。 Conventionally, irregularly shaped yarns H, H', and
In order to obtain H″, each yarn was spun using a spinneret having a stock solution discharge hole of approximately similar shape to the irregularly shaped yarn.
ところで、湿式紡糸法により得られた前記異形
糸Ｈ，H′，H″は細い部分ｙが凸状に膨らむ傾向
を示す。この傾向は紡糸原液が原液吐出孔から吐
出されたとたんに表面積を小さく、つまり安定し
た形状になろうとする為であり、全体の断面形状
としては円形に近づく為と考えられる。 By the way, the irregularly shaped yarns H, H', H'' obtained by the wet spinning method show a tendency that the thin portion y bulges out in a convex shape. In other words, this is because the shape is trying to be stable, and the overall cross-sectional shape is considered to be close to a circle.
この現像を少しでも緩和する為に、異形糸紡糸
用口金の原液吐出孔の細い部分をできるだけ小さ
くする必要があるが、例えば第１図ａの形状の異
形糸Ｈを紡糸する第２図ａ，ｂに示す異形糸紡糸
用口金１の場合、原液吐出孔２を穿設する為のパ
ンチ工具の寸法は、中間の細い部分の幅が0.04
mm、両端の太い部分の幅が0.08mm、長手方向の寸
法が0.2mmが限界で、中央の細い部分の幅を0.04
mm以下に細くすると、得られた原液吐出孔２から
吐出された後の異形糸Ｈの応力発生に伴い、糸割
れが生じたり或いは原液吐出孔２の細い部分に原
液が固化したり、異物が堆積したりして孔詰まり
が発生したりするものである。 In order to alleviate this development as much as possible, it is necessary to make the narrow part of the stock solution discharge hole of the irregular-shaped yarn spinning nozzle as small as possible. In the case of the irregular shaped yarn spinning nozzle 1 shown in b, the dimensions of the punch tool for punching the stock solution discharge hole 2 are such that the width of the narrow part in the middle is 0.04 mm.
mm, the width of the thick part at both ends is 0.08 mm, the limit for the longitudinal dimension is 0.2 mm, and the width of the narrow part in the center is 0.04 mm.
If it is made thinner than mm, the stress generated in the irregularly shaped yarn H after being discharged from the obtained stock solution discharge hole 2 may cause yarn cracking, or the stock solution may solidify in the thin part of the stock solution discharge hole 2, or foreign matter may be present. It can accumulate and cause pore clogging.
本発明はかかる問題点を解消すべくなされたも
のであり、部分的に細い部分を有する異形糸を、
高い寸法精度でもつて容易に紡糸することのでき
る異形糸紡糸用口金を提供せんとするものであ
る。 The present invention was made to solve this problem, and uses irregularly shaped threads that have partially thin portions.
It is an object of the present invention to provide a spinneret for irregularly shaped yarn that can easily spin yarn with high dimensional accuracy.
以下本発明による異形糸紡糸用口金の各種の実
施例を図によつて説明する。第３図ａ，ｂに示す
異形糸紡糸用口金１ａは、断面形状における両端
部２ａが円形で、これを接続している中間部２ｂ
が細い幅の円弧である原液吐出孔２の前記中間部
２ｂの吐出孔長さを両端部２ａの吐出孔長さより
も長くなるように、中間部２ｂの孔壁３を吐出面
４より突出させたものである。この孔壁３の突出
形状は、図示の如く両端部２ｂにわたる円弧状で
あつても良く、また両端部２ｂからテーパを付し
た形状であつても良い。 DESCRIPTION OF THE PREFERRED EMBODIMENTS Various embodiments of the spinneret for irregularly shaped yarn according to the present invention will be described below with reference to the drawings. The irregularly shaped yarn spinning nozzle 1a shown in FIGS. 3a and 3b has a circular cross-sectional shape at both end portions 2a, and an intermediate portion 2b connecting these end portions 2a.
The hole wall 3 of the intermediate portion 2b is made to protrude from the discharge surface 4 so that the length of the discharge hole of the intermediate portion 2b of the stock solution discharge hole 2, which is an arc with a narrow width, is longer than the length of the discharge hole of the both end portions 2a. It is something that The protruding shape of the hole wall 3 may be an arc extending across both ends 2b as shown in the figure, or may be tapered from both ends 2b.
尚、原液吐出孔２の細い幅の円弧である断面形
状の中間部２ｂの吐出孔長さを円形の断面形状の
両端部２ａの吐出孔長さより長くするには、第４
図に示す如く中間部２ｂの孔壁３を原液導入孔５
側に、つまり上方に円弧状に或いは山形状に突出
させても良く、また第５図に示す如く中間部２ｂ
の孔壁３を吐出面４側と原液導入孔５側の上下両
方に突出させても良いものである。 In addition, in order to make the length of the discharge hole in the middle part 2b of the narrow arc cross-sectional shape of the stock solution discharge hole 2 longer than the length of the discharge hole in both end parts 2a of the circular cross-sectional shape, the fourth
As shown in the figure, the hole wall 3 of the intermediate portion 2b is connected to the stock solution introduction hole 5.
It may protrude to the side, that is, upward in an arc shape or a mountain shape, and as shown in FIG. 5, the intermediate portion 2b
The hole wall 3 may be made to protrude both above and below the discharge surface 4 side and the stock solution introduction hole 5 side.
前記の各異形糸紡糸口金１ａ，１ｂ，１ｃはい
ずれも第１図ａに示す如き断面形状の異形糸Ｈを
紡糸する場合のものであるが、第１図ｂに示す断
面形状の異形糸H′及び第１図ｃに示す断面形状
の異形糸H″を紡糸する場合は、第６図及び第７
図に示す如く原液吐出孔２の部分的に細い部分２
b′の孔壁３を吐出面４側（又は原液導入孔５側若
しくはその両方に）に突出させて吐出孔長さを他
の部分２a′よりも長くした異形糸紡糸用口金１
ｄ，１ｅを用いると良い。 The above-mentioned irregularly shaped yarn spinnerets 1a, 1b, and 1c are all used for spinning irregularly shaped yarn H having the cross-sectional shape shown in FIG. When spinning irregularly shaped yarn H'' with the cross-sectional shape shown in Figure 1c and Figure 1c, Figure 6 and Figure 7.
As shown in the figure, a partially narrow portion 2 of the stock solution discharge hole 2
Irregular-shaped yarn spinning nozzle 1 in which the hole wall 3 of b' projects toward the discharge surface 4 side (or the stock solution introduction hole 5 side, or both) to make the length of the discharge hole longer than that of the other portion 2a'.
It is better to use d and 1e.
以上詳記した通り本発明の異形糸紡糸用口金
は、原液吐出孔の断面形状における部分的に細い
部分の吐出孔長さを他の部分よりも長くしてある
ので、原液吐出孔の細い部分から吐出される単位
時間当りの原液の量が減少し、従つて吐出直後の
異形糸の細い部分が膨らむのが防止され、寸法精
度の高い異形糸を容易に紡糸することができると
いう優れた作用効果がある。 As described in detail above, in the irregularly shaped yarn spinning nozzle of the present invention, the length of the discharge hole in the narrow part of the cross-sectional shape of the stock solution discharge hole is made longer than in other parts. This has the excellent effect of reducing the amount of stock solution discharged per unit time, thereby preventing the thin part of the irregularly shaped yarn from swelling immediately after being discharged, and making it possible to easily spin irregularly shaped yarn with high dimensional accuracy. effective.
第１図ａ，ｂ，ｃは夫々部分的に細い部分を有
する異形糸の断面形状を示す図、第２図ａは第１
図ａに示す異形糸を紡糸する従来の異形糸紡糸用
口金の要部縦断面図、仝図ｂはそのＡ−Ａ線断面
矢視図、第３図ａは第１図ａに示す異形糸を紡糸
する本発明の異形糸紡糸口金の一実施例の要部縦
断面図、仝図ｂはそのＢ−Ｂ線矢視断面図、第４
図及び第５図は第１図ａに示す異形糸を紡糸する
本発明の異形糸紡糸口金の他の実施例の要部縦断
面図、第６図及び第７図は第１図ｂ及びｃの異形
糸を紡糸する本発明の異形糸紡糸用口金の他の実
施例を示す要部縦断面図である。
１ａ，１ｂ，１ｃ，１ｄ，１ｅ……本発明の異
形糸紡糸用口金、２……原液吐出孔、２ａ……円
形の両端部、２ｂ……細い幅の円弧である中間
部、２a′……他の部分、２b′……細い部分、３…
…細い部分の孔壁、４……吐出面、５……原液導
入孔、Ｈ，H′，H″……異形糸、ｙ……異形糸の
細い部分。
Figures 1a, b, and c are diagrams showing the cross-sectional shapes of irregularly shaped threads each having a partially thin portion, and Figure 2a is a diagram showing the cross-sectional shape of the
Fig. 3a is a vertical cross-sectional view of a main part of a conventional irregular-shaped yarn spinning spinneret for spinning irregular-shaped yarn shown in Figure a, Figure b is a cross-sectional view taken along line A-A, and Figure 3a is a cross-sectional view of the irregular-shaped yarn shown in Figure 1a. FIG.
5 and 5 are longitudinal cross-sectional views of main parts of another embodiment of the irregularly shaped yarn spinneret of the present invention for spinning the irregularly shaped yarn shown in FIG. 1a, and FIGS. 6 and 7 are FIGS. 1b and c FIG. 3 is a vertical cross-sectional view of a main part showing another embodiment of the spinneret for irregularly shaped yarn of the present invention for spinning irregularly shaped yarn. 1a, 1b, 1c, 1d, 1e... The spinneret for irregularly shaped yarn of the present invention, 2... Stock solution discharge hole, 2a... Both circular ends, 2b... Middle part that is an arc with a narrow width, 2a'... ...other parts, 2b'...thin parts, 3...
... Pore wall of the thin part, 4... Discharge surface, 5... Stock solution introduction hole, H, H', H''... Irregularly shaped thread, y... Thin part of the irregularly shaped thread.
Claims (1)
を有する異形状である異形糸紡糸用口金に於い
て、原液吐出孔の部分的に細い部分の吐出孔長さ
を他の部分よりも長くしたことを特徴とする異形
糸紡糸用口金。1. In an irregularly shaped yarn spinning nozzle in which the cross-sectional shape of the stock solution discharge hole has a partially thin part, the discharge hole length of the partially thin part of the stock solution discharge hole is made longer than the other part. A spinneret for spinning irregularly shaped yarn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15245781A JPS58126310A (en) | 1981-09-26 | 1981-09-26 | Spinneret for spinning modified cross section yarn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15245781A JPS58126310A (en) | 1981-09-26 | 1981-09-26 | Spinneret for spinning modified cross section yarn |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58126310A JPS58126310A (en) | 1983-07-27 |
| JPH0121242B2 true JPH0121242B2 (en) | 1989-04-20 |
Family
ID=15540930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15245781A Granted JPS58126310A (en) | 1981-09-26 | 1981-09-26 | Spinneret for spinning modified cross section yarn |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58126310A (en) |
-
1981
- 1981-09-26 JP JP15245781A patent/JPS58126310A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58126310A (en) | 1983-07-27 |
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