JP3036947B2 - Multifilament manufacturing method - Google Patents
Multifilament manufacturing methodInfo
- Publication number
- JP3036947B2 JP3036947B2 JP4019108A JP1910892A JP3036947B2 JP 3036947 B2 JP3036947 B2 JP 3036947B2 JP 4019108 A JP4019108 A JP 4019108A JP 1910892 A JP1910892 A JP 1910892A JP 3036947 B2 JP3036947 B2 JP 3036947B2
- Authority
- JP
- Japan
- Prior art keywords
- multifilament
- cooling
- sizing agent
- 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
- 238000004513 sizing Methods 0.000 claims description 14
- 229920000098 polyolefin Polymers 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims 1
- 230000008018 melting Effects 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 20
- 239000003795 chemical substances by application Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 7
- 238000009987 spinning Methods 0.000 description 5
- 238000010036 direct spinning Methods 0.000 description 4
- -1 polypropylene Polymers 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
- 238000002788 crimping Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002826 coolant Substances 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
- 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
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 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、ポリオレフィンのマルチフィラメ
ントは口金から吐出された多数の溶融フィラメントを冷
却ダクトを用いて冷却風速が数ｍ／ｓｅｃ以下の雰囲気
気流中で、冷却しながら３００ｍ／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
工を行い製造されている。近年、巻取機の性能向上によ
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
ることができなかった。2. Description of the Related Art Generally, polyolefin multifilaments are prepared by cooling a large number of molten filaments discharged from a die in a cooling air duct at a cooling air velocity of several m / sec or less while cooling at about 300 m / min. It is manufactured by drafting at high speed and drawing and crimping in separate steps. In recent years, a method of continuously performing from spinning to drawing and crimping by improving the performance of a winder, a so-called direct spinning / drawing method has been devised.
A high-strength multifilament having sufficient fiber strength could not be obtained.
【０００３】[0003]
【発明が解決しようとする課題】本発明は高強度、高強
力の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、冷却ダクトにより冷却後、０
〜１０℃の集束剤付与ローラーにより急冷却し、かつ集
束剤付与後、連続的にインラインで８０〜１５０℃の加
熱ロールにより加熱後、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。Means for Solving the Problems The present inventors have proposed direct spinning and spinning.
Various studies were conducted to develop a method for producing a high-strength polyolefin multifilament by a drawing method. As a result, polyolefin was melt-spun and cooled by a cooling duct.
The subject was able to be solved by rapidly cooling with a sizing agent applying roller at 〜１０10 ° C., and after applying the sizing agent, continuously heating it in-line with a heating roll at 80 to 150 ° C. and stretching it at a high magnification.
【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できるものであれ
ばよく、分子量、分子量分布、密度等は特に限定されな
い。The polyolefin used in the present invention includes low-density polyethylene, medium-density polyethylene, high-density polyethylene, polypropylene, poly 1-butene, poly 4-methylpentene and the like. The polyolefin is not particularly limited as long as the polyolefin can be melt-extruded to form an aggregate of filaments, and the molecular weight, molecular weight distribution, density, 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、用いるポリオレフィンが紡糸可能でありかつ、分解
しない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 where the polyolefin used can be spun and does not decompose. 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温度は５〜４０℃、
風速は０．１〜０．５ｍ／ｍｉｎの範囲が望ましい。[0007] The spun undrawn multifilament is cooled in a cooling duct 2. The cooling here is sufficient that the single filaments do not fuse with each other, and the temperature is 5 to 40 ° C.
The wind speed is desirably in the range of 0.1 to 0.5 m / min.
【０００８】冷却ダクトで冷却された未延伸マルチフィ
ラメントは冷却された集束剤付与ローラーにより急冷さ
れるとともに集束剤が付与される。集束剤付与ローラー
の温度は０〜１０℃が必要であり、０〜５℃が好まし
い。用いられる集束剤は０〜１０℃の範囲で固化、変性
しないものであれば特に限定されない。[0008] The undrawn multifilament cooled by the cooling duct is rapidly cooled by the cooled sizing agent applying roller, and the sizing agent is applied. The temperature of the sizing agent applying roller needs to be 0 to 10 ° C, and preferably 0 to 5 ° C. The sizing agent used is not particularly limited as long as it does not solidify or denature in the range of 0 to 10 ° C.
【０００９】集束剤付与ローラーの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、
単なる集束剤付与ローラーとして使用されることがあっ
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 temperature of the sizing agent application roller has a very large effect on the linear strength of the multifilament. Conventionally,
Even when the roller is simply used as a sizing agent applying roller, it is not actively cooled as in the present invention, and it has not been known that this cooling significantly improves 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６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 6 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−
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１２０ｇ／ｍｉｎの吐出
量で押し出す。押出温度は２８０℃である。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、５℃に冷却された周速度３ｍ／ｍｉｎの冷
却集束剤付与ローラーで急冷、集束剤付与後、延伸ロー
ラー対で３００ｍｍ／ｍｉｎで巻取り、２０００ｍ／ｍ
ｉｎの速度で延伸を行った。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７．０ｇ／ｄ，
伸度２０％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)
It is extruded at a discharge rate of 120 g / min from a multifilament spinning nozzle having mφ and 68 holes using a 40 mmφ extruder. The extrusion temperature is 280 ° C. The extruded undrawn multifilament is cooled by a cooling duct having a cooling temperature of 18 ° C., a cooling air velocity of 0.5 m / min, and a length of 900 mm, and then cooled to 5 ° C. by a cooling sizing agent applying roller having a peripheral speed of 3 m / min. After quenching and applying the sizing agent, it is wound at 300 mm / min with a pair of stretching rollers, and 2,000 m / m
Stretching was performed at an in speed. When the strength and elongation of the obtained multifilament were measured, the linear strength was 7.0 g / d,
The elongation was 20%.
【００１２】（実施例２）実施例１において、１０℃に
冷却された収束剤付与ローラーを使用し１５００ｍ／ｍ
ｉｎで延伸したところ、得られたマルチフィラメントの
強伸度は、直線強度６．０ｇ／ｄ，伸度４０％であっ
た。(Example 2) In Example 1, 1500 m / m was used by using a sizing agent applying roller cooled to 10 ° C.
When stretched in, the obtained multifilament had a linear elongation of 6.0 g / d and an elongation of 40%.
【００１３】（比較例１）実施例１と同じ樹脂を用い、
集束剤付与ローラーを冷却せず延伸を行ったところ、延
伸速度は１０００ｍ／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３．５ｇ／ｄ，伸度１５０％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 Example 1,
When stretching was performed without cooling the sizing agent application roller, the stretching speed could only be increased to 1000 m / min. When the strength and elongation of the obtained multifilament were measured, the linear strength was 3.5 g / d and the elongation was 150%, and only a low strength multifilament was obtained.
【００１４】[0014]
【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
チフィラメントを製造することができる。According to the method of the present invention, a high-strength multifilament can be produced 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 冷却油剤付着オイリングロ−ラ− ５−１ 第１加熱ゴデットロ−ル ５−２ 第２加熱ゴデットロ−ル ６ 冷却ゴデットロ−ル ７ 延伸マルチフィラメント ８ 巻取機 DESCRIPTION OF SYMBOLS 1 Nozzle 2 Cooling duct 3 Undrawn multifilament 4 Coolant adhering oiling roller 5-1 First heating godet roll 5-2 Second heating godet roll 6 Cooling godet roll 7 Drawing multifilament 8 Winding machine
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｄ０２Ｊ 1/22 Ｄ０２Ｊ 1/22 Ｋ (58)調査した分野(Int.Cl.7，ＤＢ名) D01F 6/00 - 6/96 D01D 1/00 - 13/02 ──────────────────────────────────────────────────の Continuation of the front page (51) Int.Cl. 7 identification code FI D02J 1/22 D02J 1/22 K (58) Investigated field (Int.Cl. 7 , DB name) D01F 6/00-6 / 96 D01D 1/00-13/02
Claims (1)
度２３０〜２９０℃で溶融紡糸した後、０〜１０℃に冷
却された収束剤付与ローラーにより急冷し、かつ収束剤
付与後、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加熱後、高倍率延伸するマルチフィ
ラメントの製造方法。1. A polyolefin is melt-spun at a melting temperature of 230 to 290 ° C. at a die portion, quenched by a sizing agent applying roller cooled to 0 to 10 ° C., and continuously in-line after the sizing agent is applied. Surface temperature 80-150 ° C
The method for producing a multifilament, which is heated by a heating roll and stretched at a high magnification.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4019108A JP3036947B2 (en) | 1992-02-04 | 1992-02-04 | Multifilament manufacturing method |
| US08/000,099 US5283025A (en) | 1992-01-09 | 1993-01-04 | Process for producing multifilaments |
| KR1019930000167A KR950008902B1 (en) | 1992-01-09 | 1993-01-08 | Process for producing multifilaments and producing apparatus thereof |
| 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 |
| 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 |
|---|---|---|---|
| JP4019108A JP3036947B2 (en) | 1992-02-04 | 1992-02-04 | Multifilament manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05214609A JPH05214609A (en) | 1993-08-24 |
| JP3036947B2 true JP3036947B2 (en) | 2000-04-24 |
Family
ID=11990288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4019108A Expired - Fee Related JP3036947B2 (en) | 1992-01-09 | 1992-02-04 | Multifilament manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3036947B2 (en) |
-
1992
- 1992-02-04 JP JP4019108A patent/JP3036947B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05214609A (en) | 1993-08-24 |
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