JP3036941B2 - Multifilament manufacturing method - Google Patents
Multifilament manufacturing methodInfo
- Publication number
- JP3036941B2 JP3036941B2 JP4002216A JP221692A JP3036941B2 JP 3036941 B2 JP3036941 B2 JP 3036941B2 JP 4002216 A JP4002216 A JP 4002216A JP 221692 A JP221692 A JP 221692A JP 3036941 B2 JP3036941 B2 JP 3036941B2
- Authority
- JP
- Japan
- Prior art keywords
- multifilament
- cooling
- roll
- cooled
- strength
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 238000001816 cooling Methods 0.000 claims description 27
- 229920000098 polyolefin Polymers 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000010036 direct spinning Methods 0.000 description 4
- -1 polypropylene Polymers 0.000 description 4
- 238000009987 spinning Methods 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 229920001179 medium density polyethylene Polymers 0.000 description 1
- 239000004701 medium-density polyethylene Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Landscapes
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Artificial Filaments (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Description
【０００１】[0001]
【産業上の利用分野】ポリプロピレンやポリエチレン等
のポリオレフィンからなるマルチフィラメントはロー
プ、ネット、カーペットのパイルヤーン、不織布等の原
糸等に用いられている。BACKGROUND OF THE INVENTION Multifilaments made of polyolefins such as polypropylene and polyethylene are used in ropes, nets, pile yarns of carpets, and raw yarns of nonwoven fabrics.
【０００２】[0002]
【従来の技術】通常、熱可塑性樹脂のマルチフィラメン
トは口金から吐出された多数の溶融フィラメントを数ｍ
以下の冷却ダクトを用いて雰囲気流中で冷却しながら３
００ｍ／ｍｉｎ程度の比較的高速でドラフトをかけて引
取り、別工程で延伸、捲縮加工等を行い製造されてい
る。近年、巻取り機の性能向上により紡糸から延伸、捲
縮加工まで連続的に行う方法、いわゆる直接紡糸・延伸
法が考案されているがこの場合、充分な繊維強度を有す
る高強力マルチフィラメントを得ることはできなかっ
た。2. Description of the Related Art Generally, a multifilament of a thermoplastic resin is formed by melting a number of molten filaments discharged from a die by several meters.
While cooling in the atmosphere flow using the following cooling duct, 3
It is manufactured by drafting at a relatively high speed of about 00 m / min, drawing, and stretching and crimping in a separate step. In recent years, a method of continuously performing spinning, drawing and crimping by improving the performance of a winder, a so-called direct spinning / drawing method, has been devised. In this case, a high-strength multifilament having sufficient fiber strength is obtained. I couldn't do that.
【０００３】[0003]
【発明が解決しようとする課題】本発明は高強度の高強
力ポリオレフィンマルチフィラメントを直接紡糸・延伸
法により製造する方法を提供することを課題とする。An object of the present invention is to provide a method for producing a high-strength, high-strength polyolefin multifilament by a direct spinning / drawing method.
【０００４】[0004]
【課題を解決するための手段】本発明者らは、直接紡糸
・延伸法により高強力のポリオレフィンマルチフィラメ
ントの製造方法を開発すべく、種々検討を重ねた結果、
ポリオレフィンを溶融紡出し、冷却ダクトを用いて空冷
後、表面温度５〜３０℃の冷却ロールにより冷却し、し
かる後、連続的にインラインで表面温度８０〜１５０℃
の加熱ロールにより高倍率延伸することにより課題を解
決することができた。The present inventors have conducted various studies in order to develop a method for producing a high-strength polyolefin multifilament by a direct spinning / drawing method.
Polyolefin is melt-spun, air-cooled using a cooling duct, and then cooled by a cooling roll having a surface temperature of 5 to 30 ° C. Thereafter, the surface temperature is continuously inlined to a surface temperature of 80 to 150 ° C.
The problem could be solved by stretching the film at a high magnification by using a heating roll.
【０００５】本発明で使用されるポリオレフィンは、低
密度ポリエチレン、中密度ポリエチレン、高密度ポリエ
チレン、ポリプロピレン、ポリ１−ブテン、ポリ４−メ
チルペンテン等を例示できる。ポリオレフィンは、溶融
押出成形してフィラメントの集合体が成形加工できるも
のであればよく、分子量、密度、分子量分布等は特に限
定されない。[0005] Examples of the polyolefin used in the present invention include low-density polyethylene, medium-density polyethylene, high-density polyethylene, polypropylene, poly 1-butene and poly 4-methylpentene. The polyolefin is not particularly limited as long as it can be melt-extruded to form an aggregate of filaments, and the molecular weight, density, molecular weight distribution and the like are not particularly limited.
【０００６】次に本発明を実施する方法について説明す
る。第１図は本発明に係る装置の一例を示す。ポリオレ
フィンが押出機により、紡糸用ノズル１から吐出されて
未延伸マルチフィラメント３が形成される。成形温度は
ポリオレフィンが劣化せずフィラメントの集合体が成形
加工できる範囲でできるだけ高い方が望ましい。ここで
使用されるノズルは各吐出されたフィラメントが均一に
冷却されるものが好ましい。Next, a method for carrying out the present invention will be described. FIG. 1 shows an example of the device according to the present invention. The polyolefin is discharged from the spinning nozzle 1 by an extruder to form an undrawn multifilament 3. The molding temperature is desirably as high as possible within a range in which the aggregate of filaments can be molded without deteriorating the polyolefin. The nozzle used here is preferably one in which each discharged filament is uniformly cooled.
【０００７】紡糸された未延伸マルチフィラメントは冷
却ダクト２で冷却固化される。ここでの冷却は単糸フィ
ラメントが互いに融着しない程度でよく、冷却ダクトの
温度は５〜４０℃、風速は０．１〜０．５ｍ／ｍｉｎの
範囲が望ましい。冷却後、オイリングローラー４により
油剤が付与される。[0007] The spun undrawn multifilament is cooled and solidified in the cooling duct 2. The cooling here may be such that the single filaments do not fuse with each other, and the temperature of the cooling duct is preferably 5 to 40 ° C., and the wind speed is preferably in the range of 0.1 to 0.5 m / min. After cooling, the oil agent is applied by the oiling roller 4.
【０００８】油剤が付与されたマルチフィラメントは冷
却ロールにより冷却される。冷却ロールとしてはゴデッ
トロールの他にニップロール等も使用される。冷却ロー
ルの表面温度は５〜３０℃が必要であり、５〜２０℃が
好ましい。[0008] The multifilament provided with the oil agent is cooled by a cooling roll. As the cooling roll, a nip roll or the like is used in addition to the godet roll. The surface temperature of the cooling roll needs to be 5 to 30C, and preferably 5 to 20C.
【０００９】冷却ロールの表面温度はマルチフィラメン
トの直線強度に非常に大きな影響を与える。従来、単な
る引取りロールとして使用されることはあっても、本発
明のように積極的に冷却することはなく、この冷却によ
りマルチフィラメントの物性が大幅に改良されることは
知られていなかった。冷却は水、ブライン等が使用さ
れ、循環系であることが望ましい。[0009] The surface temperature of the chill roll has a very large effect on the linear strength of the multifilament. Conventionally, even though it is used as a simple take-up roll, it was not actively cooled as in the present invention, and it was not known that this cooling greatly improved the physical properties of the multifilament. . Water, brine, etc. are used for cooling, and it is desirable to use a circulation system.
【００１０】冷却ロールで冷却されたマルチフィラメン
トは加熱ロールにより延伸され、延伸されたマルチフィ
ラメントは冷却ゴデットロール７で冷却されたのち、巻
き取られ製品となる。加熱ロールとしてはゴデットロー
ル、ニップロール等が使用され、多段で延伸してもよ
い。延伸温度は通常８０〜１５０℃であり、特に１００
〜１４０℃が好ましい。また延伸倍率は８〜１５倍の高
延伸倍率で行われる。８倍未満では強度が低く、１５倍
を超えて延伸するのは困難である。[0010] The multifilament cooled by the cooling roll is drawn by a heating roll, and the drawn multifilament is cooled by a cooling godet roll 7 and wound up into a product. A godet roll, a nip roll, or the like is used as the heating roll, and may be stretched in multiple stages. The stretching temperature is usually from 80 to 150 ° C, especially 100 ° C.
~ 140 ° C is preferred. The stretching is performed at a high stretching ratio of 8 to 15 times. If it is less than 8 times, the strength is low, and it is difficult to stretch it more than 15 times.
【００１１】[0011]
（実施例１）ＭＦＲ７．８／１０ｍｉｎ（ＡＳＴＭ Ｄ
１２３８，Ｌ）のポリプロピレン（ショウアロマー：
ＴＡ５５３−４，昭和電工（株）製）を用い、０．６ｍ
ｍφ、６８孔からなるマルチフィラメント用紡糸ノズル
より４０ｍｍφ押出機を用いて押出温度２８０℃、３５
ｇ／ｍｉｎの吐出量で押し出す。押し出された未延伸マ
ルチフィラメントを冷却温度１８℃，冷却風速０．５ｍ
／ｍｉｎ，長さ９００ｍｍからなる冷却ダクトで冷却
後、オイリングローラーで油剤を付与したのち、循環水
により表面温度１５℃に保持された周速度３５ｍ／ｍｉ
ｎの冷却ゴデットロールで冷却後、表面温度１２０℃の
延伸ローラー対で加熱し、３００ｍ／ｍｉｎで巻き取っ
た。得られたマルチフィラメントの強伸度を測定したと
ころ、直線強度８．０ｇ／ｄ，伸度１４％であった。(Example 1) MFR 7.8 / 10 min (ASTM D
1238, L) polypropylene (show aroma:
TA553-4, manufactured by Showa Denko KK)
Extrusion temperature 280 ° C, 35 mm using a 40 mmφ extruder from a multifilament spinning nozzle having 68 mφ and 68 holes.
Extrude at a discharge rate of g / min. The extruded undrawn multifilament is cooled at a cooling temperature of 18 ° C. and a cooling air speed of 0.5 m.
After cooling with a cooling duct having a length of 900 mm / min and a length of 900 mm, an oil agent is applied by an oiling roller, and a peripheral speed of 35 m / mi maintained at a surface temperature of 15 ° C. by circulating water.
After cooling with a cooling godet roll of No. n, the sheet was heated with a pair of stretching rollers having a surface temperature of 120 ° C. and wound up at 300 m / min. When the strong elongation of the obtained multifilament was measured, the linear strength was 8.0 g / d and the elongation was 14%.
【００１２】（実施例２）実施例１において、表面温度
５℃に保持された冷却ゴデットロールを使用したとこ
ろ、得られたマルチフィラメントの強伸度は、直線強度
９．０ｇ／ｄ，伸度１２％であった。Example 2 In Example 1, when a cooled godet roll maintained at a surface temperature of 5 ° C. was used, the obtained multifilament had a linear elongation of 9.0 g / d and an elongation of 12 g / d. %Met.
【００１３】（比較例１）実施例と同じ樹脂を用い、油
剤付着後、３５ｍ／ｍｉｎの速度で冷却ゴデットロール
−１を通さず、直接延伸ローラー対に導入し延伸温度１
２０℃で延伸を行ったところ最大延伸速度は１４０ｍ／
ｍｉｎまでしか上げれなかった。得られたマルチフィラ
メントの強伸度を測定したところ、直線強度３．８ｇ／
ｄ，伸度１４０％であり低い強度のマルチフィラメント
しか得られなかった。(Comparative Example 1) Using the same resin as in the example, after adhering the oil agent, the resin was directly introduced into a pair of stretching rollers at a speed of 35 m / min without passing through a cooling godet roll-1, and a stretching temperature of 1
When stretched at 20 ° C., the maximum stretching speed was 140 m /
It could only be raised up to min. When the strength and elongation of the obtained multifilament were measured, the linear strength was 3.8 g /
d, The elongation was 140%, and only a low strength multifilament was obtained.
【００１４】（比較例２）実施例１において、表面温度
４０℃に保持された冷却ゴデットロールを使用したとこ
ろ、得られたマルチフィラメントの強伸度は、３．５ｇ
／ｄ，伸度１７０％にすぎなかった。(Comparative Example 2) In Example 1, when a cooled godet roll maintained at a surface temperature of 40 ° C. was used, the resulting multifilament had a strong elongation of 3.5 g.
/ D, elongation was only 170%.
【００１５】[0015]
【発明の効果】本発明の方法によれば紡糸・延伸の工程
を分けることなく、直接紡糸・延伸法により高強度のマ
ルチフィラメントを得ることができる。According to the method of the present invention, a high-strength multifilament can be obtained by the direct spinning / drawing method without separating the steps of spinning / drawing.
【図１】本発明の成形装置の一例。FIG. 1 shows an example of a molding apparatus according to the present invention.
１ ノズル ２ 冷却ダクト ３ 未延伸マルチフィラメント ４ オイリングローラー ５ 冷却ゴデットロールー１ ６−１ 第１加熱ゴデットロール ６−２ 第２加熱ゴデットロール ７ 冷却ゴデットロールー２ ８ 延伸マルチフィラメント ９ 巻取機 Reference Signs List 1 nozzle 2 cooling duct 3 undrawn multifilament 4 oiling roller 5 cooling godet roll 1 6-1 first heating godet roll 6-2 second heating godet roll 7 cooling godet roll 2 8 drawn multifilament 9 winder
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｄ０２Ｊ 13/00 Ｄ０２Ｊ 13/00 Ｆ (72)発明者 佐野 毅 神奈川県川崎市川崎区千鳥町３番２号 昭和電工株式会社 川崎樹脂研究所内 (58)調査した分野(Int.Cl.7，ＤＢ名) D01F 6/000 - 6/96 D01D 1/00 - 13/02 ────────────────────────────────────────────────── ─── Continued on the front page (51) Int.Cl. 7 Identification code FI D02J 13/00 D02J 13/00 F (72) Inventor Takeshi Sano 3-2 Chidoricho, Kawasaki-ku, Kawasaki-shi, Kawasaki Showa Denko KK Kawasaki Resin Research Institute (58) Field surveyed (Int. Cl. 7 , DB name) D01F 6/000-6/96 D01D 1/00-13/02
Claims (1)
トを用いて空冷後、表面温度５〜３０℃の冷却ロールに
より冷却し、しかる後、連続的にインラインで表面温度
８０〜１５０℃の加熱ロールにより高倍率延伸すること
を特徴とするマルチフィラメントの製造方法。1. A polyolefin is melt-spun, air-cooled using a cooling duct, cooled by a cooling roll having a surface temperature of 5 to 30 ° C., and then continuously in-line by a heating roll having a surface temperature of 80 to 150 ° C. A method for producing a multifilament, comprising drawing at a high magnification.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4002216A JP3036941B2 (en) | 1992-01-09 | 1992-01-09 | Multifilament manufacturing method |
| US08/000,099 US5283025A (en) | 1992-01-09 | 1993-01-04 | Process for producing multifilaments |
| EP93100218A EP0551131B1 (en) | 1992-01-09 | 1993-01-08 | Process for producing multifilaments |
| DE69313470T DE69313470T2 (en) | 1992-01-09 | 1993-01-08 | Process for the production of multifilaments |
| KR1019930000167A KR950008902B1 (en) | 1992-01-09 | 1993-01-08 | Process for producing multifilaments and producing apparatus thereof |
| US08/444,029 US5609888A (en) | 1992-01-09 | 1995-05-18 | Apparatus for producing multifilaments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4002216A JP3036941B2 (en) | 1992-01-09 | 1992-01-09 | Multifilament manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05186908A JPH05186908A (en) | 1993-07-27 |
| JP3036941B2 true JP3036941B2 (en) | 2000-04-24 |
Family
ID=11523166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4002216A Expired - Fee Related JP3036941B2 (en) | 1992-01-09 | 1992-01-09 | Multifilament manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3036941B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4524644B2 (en) * | 2004-07-08 | 2010-08-18 | 東洋紡績株式会社 | Method for producing high-strength polyethylene fiber |
| CH705305B1 (en) * | 2011-07-25 | 2015-06-30 | Trützschler Switzerland AG | Apparatus and method for manufacturing a continuous filament of a synthetic polymer melt. |
| KR101945943B1 (en) * | 2017-04-27 | 2019-02-11 | 주식회사 휴비스 | High Strength Polyethylene Multi-filament Fiber and Manufacturing Method Thereof |
-
1992
- 1992-01-09 JP JP4002216A patent/JP3036941B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05186908A (en) | 1993-07-27 |
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