JP3347377B2 - Multifilament manufacturing method - Google Patents
Multifilament manufacturing methodInfo
- Publication number
- JP3347377B2 JP3347377B2 JP00071593A JP71593A JP3347377B2 JP 3347377 B2 JP3347377 B2 JP 3347377B2 JP 00071593 A JP00071593 A JP 00071593A JP 71593 A JP71593 A JP 71593A JP 3347377 B2 JP3347377 B2 JP 3347377B2
- Authority
- JP
- Japan
- Prior art keywords
- cooling
- multifilament
- roll
- heating
- 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 31
- 238000010438 heat treatment Methods 0.000 claims description 18
- 229920000098 polyolefin Polymers 0.000 claims description 8
- 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
- 239000011810 insulating material 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
- 238000002788 crimping Methods 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 230000000052 comparative effect Effects 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
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 238000009413 insulation Methods 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
- 239000000203 mixture Substances 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Artificial Filaments (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (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
００〜１０００ｍ／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 100 to 1000 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】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℃の冷却部と表面温度８０〜１５０℃の加熱部より
なる冷熱ロールにより冷却加熱後、加熱高速ロールによ
り延伸倍率８〜１５倍の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 and drawing method. Surface temperature 5
The problem could be solved by cooling and heating with a cooling roll composed of a cooling unit at 30 ° C. and a heating unit with a surface temperature of 80 to 150 ° C., and then performing high-magnification stretching of 8 to 15 times with a high-speed 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
熱ロールにより急冷却後急加熱される。冷熱ロールは図
２に一例を示すように、冷却部と加熱部が断熱材で分離
されたものであり、断熱材はアスベスト、石膏ボード、
フェノール樹脂ボード等断熱効率が高いものが使用され
る。The multifilament to which the oil agent has been applied is rapidly cooled by a chill roll and then rapidly heated. As shown in an example in FIG. 2, the cooling and heating roll has a cooling unit and a heating unit separated by a heat insulating material, and the heat insulating material is asbestos, gypsum board,
A phenol resin board or the like having high heat insulation efficiency is used.
【０００９】冷熱ロールの冷却部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、５〜
３０℃が必要であり、５〜２０℃が望ましい。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。また、冷却部のロー
ル表面は鏡面であることがマルチフィラメントを十分に
冷却するために望ましい。[0009] The surface temperature of the cooling section of the cooling roll has a very large effect on the linear strength of the multifilament.
30 ° C is required, and 5-20 ° C is desirable. 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. In addition, it is desirable that the roll surface of the cooling unit be a mirror surface in order to sufficiently cool the multifilament.
【００１０】冷却部で冷却されたマルチフィラメントは
冷熱ロールの加熱部により加熱される。加熱部の表面温
度は８０〜１５０℃であり、特に１００〜１４０℃が望
ましい。加熱部はニクロム線ヒーター、電磁誘導ヒータ
ー等で加熱され、特に限定されないが、均一な表面温度
を得るには電磁誘導ヒーターによる加熱が望ましい。加
熱部のロール表面は特に限定されないが高延伸倍率のフ
ィラメントを得るためには梨地であることが望ましい。[0010] The multifilament cooled in the cooling section is heated by the heating section of the chill roll. The surface temperature of the heating section is from 80 to 150C, preferably from 100 to 140C. The heating unit is heated by a nichrome wire heater, an electromagnetic induction heater, or the like, and is not particularly limited. However, to obtain a uniform surface temperature, heating by an electromagnetic induction heater is desirable. The roll surface of the heating section is not particularly limited, but is preferably satin in order to obtain a filament having a high draw ratio.
【００１１】急冷却さらに急加熱されたマルチフィラメ
ントは冷熱ロールの加熱部と加熱高速ロールの間で延伸
される。延伸倍率は８〜１５倍の高延伸倍率で行われ、
１０〜１３倍が望ましい。８倍未満では強度が低く、１
５倍を超えて延伸するのは困難である。加熱高速ロール
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。ゴデットローラーとして用いる
場合の糸の走行状態を安定させるため、フリーロール表
面は梨地であることが望ましい。また糸の走行状態を安
定させるためガイドとなる溝を設けてもよい。The rapidly cooled multifilament is further drawn between the heating section of the cold roll and the high-speed roll. The stretching magnification is performed at a high stretching magnification of 8 to 15 times,
10 to 13 times is desirable. If it is less than 8 times, the strength is low and 1
It is difficult to stretch more than 5 times. Godet rolls, nip rolls, etc. are used as heating high-speed rolls,
It may be stretched in multiple stages. In order to stabilize the running state of the yarn when used as a godet roller, the surface of the free roll is desirably satin. A groove serving as a guide may be provided to stabilize the running state of the yarn.
【００１２】延伸されたマルチフィラメントは冷却ロー
ルで冷却されたのち、巻き取られ製品となる。[0012] The drawn multifilament is cooled by a cooling roll and then wound into a product.
【００１３】[0013]
（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
により冷却部の表面温度１５℃、加熱部の表面温度１２
０℃に保持された周速度３５ｍ／ｍｉｎの冷熱ロールで
冷却加熱後、表面温度１４０℃の加熱高速ロールで加熱
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８．２
ｇ／ｄ，伸度１７％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 then the surface temperature of the cooling unit is 15 ° C.
After cooling and heating with a chill roll having a peripheral speed of 35 m / min maintained at 0 ° C., the mixture was heated with a heating high-speed roll having a surface temperature of 140 ° C. and wound up at 300 m / min. When the strength and elongation of the obtained multifilament were measured, the linear strength was 8.2.
g / d and elongation were 17%.
【００１４】（比較例１）実施例と同じ樹脂を用い、油
剤付着後、３５ｍ／ｍｉｎの速度で冷熱ロールの冷却部
を通さず、延伸温度１２０℃で延伸を行ったところ最大
延伸速度は１４０ｍ／ｍｉｎまでしか上げられなかっ
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４．０ｇ／ｄ，伸度８５％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 applying the oil agent, the film was stretched at a stretching temperature of 120 ° C. at a speed of 35 m / min without passing through a cooling section of a chill roll. / Min only. When the strength and elongation of the obtained multifilament were measured, the linear strength was 4.0 g / d and the elongation was 85%, and only a low strength multifilament was obtained.
【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.
【図２】本発明の冷熱ロールの一例。FIG. 2 shows an example of the cooling / heating roll of 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 冷熱ロール ６ 加熱高速ロール ７ 冷却ゴデットロール ８ 延伸マルチフィラメント ９ 巻取機 １１ 冷却部 １２ 断熱材 １３ 加熱部 １４ フリーロール REFERENCE SIGNS LIST 1 nozzle 2 cooling duct 3 undrawn multifilament 4 oiling roller 5 chill roll 6 heating high-speed roll 7 cooling godet roll 8 drawn multifilament 9 winding machine 11 cooling unit 12 heat insulating material 13 heating unit 14 free roll
───────────────────────────────────────────────────── 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 Ｋ (56)参考文献 特開 平５−214609（ＪＰ，Ａ) 特開 平５−186908（ＪＰ，Ａ) 特開 昭60−134022（ＪＰ，Ａ) 実開 平４−13676（ＪＰ，Ｕ) 実公 昭47−23803（ＪＰ，Ｙ１) (58)調査した分野(Int.Cl.7，ＤＢ名) D02J 1/00 - 13/00 D01F 6/04 - 6/06 D01D 5/00 - 5/42 ──────────────────────────────────────────────────続 き Continuation of the front page (51) Int.Cl. 7 Identification symbol FI D02J 13/00 D02J 13/00 K (56) References JP-A-5-214609 (JP, A) JP-A 5-186908 ( JP, A) JP-A-60-134022 (JP, A) JP-A-4-13676 (JP, U) JP-A-47-23803 (JP, Y1) (58) Fields investigated (Int. Cl. 7 , (DB name) D02J 1/00-13/00 D01F 6/04-6/06 D01D 5/00-5/42
Claims (1)
トを用いて空冷後、表面温度５〜３０℃の冷却部と表面
温度８０〜１５０℃の加熱部よりなる冷熱ロールにより
冷却加熱後、加熱高速ロールにより延伸倍率８〜１５倍
の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 and heated by a chill roll comprising a cooling section having a surface temperature of 5 to 30 ° C. and a heating section having a surface temperature of 80 to 150 ° C., and then heated to a high-speed roll. 8 to 15 times
A method for producing a multifilament, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00071593A JP3347377B2 (en) | 1993-01-06 | 1993-01-06 | Multifilament manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00071593A JP3347377B2 (en) | 1993-01-06 | 1993-01-06 | Multifilament manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06200442A JPH06200442A (en) | 1994-07-19 |
| JP3347377B2 true JP3347377B2 (en) | 2002-11-20 |
Family
ID=11481462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP00071593A Expired - Fee Related JP3347377B2 (en) | 1993-01-06 | 1993-01-06 | Multifilament manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3347377B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100490193B1 (en) * | 2002-07-19 | 2005-05-17 | 한국섬유개발연구원 | Preparation of draw textured polyester yarn producted by undrawn filaments |
| CN111575828A (en) * | 2020-05-13 | 2020-08-25 | 许昌鸿洋生化实业发展有限公司 | PCT-based antibacterial flame-retardant artificial wig fiber and preparation method thereof |
-
1993
- 1993-01-06 JP JP00071593A patent/JP3347377B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06200442A (en) | 1994-07-19 |
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