JPS61152810A - Production of improved polypropylene monofilament - Google Patents
Production of improved polypropylene monofilamentInfo
- Publication number
- JPS61152810A JPS61152810A JP27987784A JP27987784A JPS61152810A JP S61152810 A JPS61152810 A JP S61152810A JP 27987784 A JP27987784 A JP 27987784A JP 27987784 A JP27987784 A JP 27987784A JP S61152810 A JPS61152810 A JP S61152810A
- Authority
- JP
- Japan
- Prior art keywords
- monofilament
- stretching
- resin
- temperature
- melting point
- 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.)
- Pending
Links
Abstract
Description
【発明の詳細な説明】
本発明は耐摩耗性が改良されたポリプロピレンモノフィ
ラメント（以下、ＰＰモノフィラメントという。）の製
造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing polypropylene monofilament (hereinafter referred to as PP monofilament) with improved abrasion resistance.
さら１：詳しくはＰＰモノフィラメントの製造工程およ
び撚り、整経、編織などの２次加工工程Ｃ二おける該モ
ノフィラメントの毛羽立ちの抑制や該モノフィラメント
からの粉状物の発生が防止され、かつ充分な実用的強度
を有するＰＰモノフィラメントの製造方法（二関する。Further 1: In detail, the production process of PP monofilament and secondary processing steps such as twisting, warping, knitting and weaving C2 suppresses the fluffing of the monofilament and prevents the generation of powdery substances from the monofilament, and is sufficient for practical use. Method for producing PP monofilament with physical strength (2 related methods)
従来より、ＰＰモノフィラメントは強度、柔軟性、耐薬
品性に優れていることから主に船舶漁業用のロープや農
業用の結束紐として広く使用されているほか最近は織物
として防虫網、米麦袋、土木用シートなどへの利用が盛
んである。Conventionally, PP monofilament has excellent strength, flexibility, and chemical resistance, so it has been widely used mainly as ropes for boat fishing and as binding cords for agriculture. It is widely used for civil engineering sheets, etc.
しかしながら、延１伸Ｃ二より分子配向を有するＰＰモ
ノフィラメントは、強度が向上する反面、摩擦により分
子配向が破壊され易くなる。その結果、延伸後のロール
面上や巻取機のフックガイド、トラバースガイドなどの
モノフィラメント製造工程Ｃ：おいて、またはモノフィ
ラメントを整品化するための撚り、整経、編織などの２
次加工工程において、該モノフィラメントの表面が毛羽
立ったり、該モノフィラメントの摩耗Ｃ二より発生する
粉状物が時間の経過とともに堆積し、製造工程または２
次加工工程上の運転阻害要因となったり、また摩耗がは
げしくなると得られたモノフィラメントもしくは２次加
工品の強度が低下するといった各種の整置な引き起こす
。これらの欠点を改善するため（；・押出時の溶融樹脂
の流動性や紡糸性を良くするべく押出温度を高くしたり
、紡糸速度を遅くしたりまたは延伸時の延伸倍率を低く
おさえることＣ二より、分子配向を抑制することが行な
われているがその結果、生産性、作業性の低下や得られ
たモノフィラメントの強度が不足するといった整置が生
じている。特（二ＰＰ七ノフィラメントの織物製品につ
いては、摩耗（：よる製品表面の毛羽立ちや粉状物の耐
着は外観を損ね、商品価値を低下させるため、早急な解
決が求められている。この改善方法としてＰＰモノフィ
ラメントの表層部を耐摩耗性の良い硬化支構で被覆せし
める方法が考えられるが製造工程が複雑になり、製造コ
ストがきわめて高くなるといった欠点がある。However, although the strength of the PP monofilament having more molecular orientation than that of drawn C2 is improved, the molecular orientation is more likely to be destroyed by friction. As a result, monofilament production process C: on the roll surface after stretching, hook guide of winding machine, traverse guide, etc.
In the next processing step, the surface of the monofilament becomes fluffy, and powdery substances generated from wear of the monofilament accumulate over time, resulting in
It may become a factor that inhibits the operation of the next processing step, and when the wear becomes severe, it causes various misalignments such as a decrease in the strength of the obtained monofilament or the secondary processed product. In order to improve these shortcomings, it is necessary to raise the extrusion temperature, slow down the spinning speed, or keep the draw ratio low during stretching in order to improve the fluidity and spinnability of the molten resin during extrusion. However, as a result, productivity and workability are reduced, and the strength of the obtained monofilament is insufficient. As for textile products, an immediate solution is required as wear and tear (fuzzing and adhesion of powdery substances on the product surface impairs the appearance and lowers the product value. As a way to improve this problem, A method has been considered in which the material is coated with a hardened support having good wear resistance, but this method has the drawbacks that the manufacturing process becomes complicated and the manufacturing cost becomes extremely high.
本発明者らはＰＰモノフィラメント（＝かかわる上述の
問題点を解決するべく鋭意研究した。The present inventors have conducted extensive research in order to solve the above-mentioned problems related to PP monofilament.
その結果、モノフィラメント製造Ｃ二おける延伸工程の
延伸操作および／または熱処理を特定の条件下で行なう
ことにより、得られるモノフィラメントの表面の毛羽立
ちや粉状物の発生が防止されることを見い出し、この知
見Ｉ：もとずいて本発明を完成した。As a result, they discovered that by performing the drawing operation and/or heat treatment in the drawing process in monofilament production C2 under specific conditions, the generation of fuzz and powdery substances on the surface of the resulting monofilament can be prevented. I: The present invention was originally completed.
以上の記述から明らかなように、本発明の目的はＰＰモ
ノフィラメントの製造工程および撚り、整経、編織など
の２次卯工工程Ｃ；おいて毛羽立ちや粉状物の発生が防
止され、かつ充分な実用的強度を有するＰＰモノフィラ
メントの製造方法を提供することである。As is clear from the above description, the purpose of the present invention is to prevent the generation of fuzz and powdery substances in the manufacturing process of PP monofilament and the secondary fabrication process C such as twisting, warping, knitting and weaving, and to It is an object of the present invention to provide a method for producing PP monofilament having practical strength.
本発明は下記の構成を有する。The present invention has the following configuration.
（１）メルトフローレート０．３〜１５ ｔ／１ｏ分の
ポリプロピレン樹脂を溶融押出して得られるモノフィラ
メント状紡出物を該樹脂の融点以上の雰囲気温度で延伸
することを特徴とするｉＩ線強度４．５ ｆ’／ ｄ以
上を有し、かつ耐摩耗性の改良されたポリプロピレンモ
ノフィラメント製造方法。(1) iI wire strength 4 characterized by stretching a monofilament-shaped spun product obtained by melt extruding a polypropylene resin with a melt flow rate of 0.3 to 15 t/1o at an ambient temperature higher than the melting point of the resin. .5 f'/d or more and improved abrasion resistance.
（２）メルトフローレート０．３〜１５ ｆ ／ １０
分のポリプロピレン樹脂を溶融押出して得られるモノフ
ィラメント状紡出物を該樹脂の融点未満の雰囲気温度で
１段目の延伸を行ない、引きつづき該樹脂の融点以上の
雰囲気温度で２段目の延伸を行なうことを特徴とする直
線強度ａ、５ｒ／ｄ以上を有し、かつ耐摩耗性の改良さ
れたポリプロピレンモノフィラメントの製造方法。(2) Melt flow rate 0.3-15 f/10
A monofilament-shaped spun product obtained by melt-extruding a polypropylene resin of 100 mL is subjected to a first drawing at an ambient temperature below the melting point of the resin, followed by a second drawing at an ambient temperature above the melting point of the resin. A method for producing a polypropylene monofilament having a linear strength a of 5 r/d or more and improved abrasion resistance.
（３）メルトフローレートが０．３〜１５ｇ／１０分の
ポリプロピレン樹脂を溶融押出して得られるモノフィラ
メント状紡出物を延伸し、引きつづき該樹脂の融点以上
の雰囲気温度で熱処理を行なうことを特徴とする直線強
度４．５ｇ／ｄ以上を有し・かつ耐摩耗性の改良された
ポリプロピレンモノフィラメントの製造方法。(3) A monofilament-shaped spun product obtained by melt-extruding a polypropylene resin with a melt flow rate of 0.3 to 15 g/10 minutes is drawn, and then heat-treated at an ambient temperature equal to or higher than the melting point of the resin. A method for producing polypropylene monofilament having a linear strength of 4.5 g/d or more and improved abrasion resistance.
本発明でいうＰＰモノフィラメントとは、各モノフィラ
メントがそれぞれ独立した形状である通常の単糸モノフ
ィラメントだけではなく、２個以上の単糸モノフィラメ
ントが平行（；配列し連結した平らな紐状の形状を有す
るいわゆる連糸構造をもったモノフィラメントをも含む
ものであり、また単糸モノフィラメントの断面形状は真
円、楕円、長円のいずれのものでもよい。The PP monofilament referred to in the present invention is not only a normal single monofilament in which each monofilament has an independent shape, but also a flat string-like shape in which two or more single monofilaments are arranged in parallel (; arranged and connected). It also includes monofilaments having a so-called continuous thread structure, and the cross-sectional shape of the single monofilaments may be any of a perfect circle, an ellipse, and an ellipse.
本発明Ｃ二相いるポリプロピレン樹脂としては、プロピ
レンの単独重合体、エチレンおよびブテン−１などの１
以上のα−オレフィンとプロピレンとの共重合体を用い
ることができる。また必要に応じて通常ポリプロレン樹
脂に使用される各種添卯剤例えば酸化防止剤、耐候剤、
帯電防止剤、滑剤、顔料、無機質充填剤などを本発明の
目的を損なわない範囲において併用することができる。The two-phase polypropylene resin of the present invention C includes homopolymers of propylene, monopolymers such as ethylene and butene-1, etc.
A copolymer of the above α-olefin and propylene can be used. In addition, various additives normally used for polyprolene resin, such as antioxidants, weathering agents, etc., may be added as necessary.
Antistatic agents, lubricants, pigments, inorganic fillers, etc. can be used in combination within the range that does not impair the purpose of the present invention.
本発明に用いるポリプロピレン樹脂のメルトフＯ−Ｌ／
−）（温度２３０℃、荷重２．１６に４ｃおける１０分
間の溶融樹脂の吐出量で以下ＭＦＲという。）は０．３
〜１５ｇ／１０分である。Melt-off O-L/ of polypropylene resin used in the present invention
-) (hereinafter referred to as MFR, the amount of molten resin discharged for 10 minutes at a temperature of 230°C and a load of 2.16 at 4c) is 0.3
~15g/10 minutes.
ＭＦＲが０．３ｒ／１０分未満だと、該樹脂を溶融した
ときの溶融樹脂の流動性がわるくなり、溶融押出時に押
出変動を起こしたり、得られる延伸前のモノフィラメン
ト紡出物の表面肌荒れがひどくなり、かつ安定したモノ
フィラメントが得られ（：＜くなるので好ましくない。If the MFR is less than 0.3r/10 minutes, the fluidity of the molten resin will be poor when the resin is melted, causing extrusion fluctuations during melt extrusion, and the surface roughness of the resulting monofilament spun product before stretching. It is not preferable because it becomes worse and a stable monofilament is obtained (:<).
またＭＦＲが１５Ｆ／１０分を超えると・得られるモノ
フィラメントの強度が低くなりｓ４．５ｇ／ｄ以上の直
線強度が得られないので好ましくない。Moreover, if the MFR exceeds 15F/10 minutes, the strength of the obtained monofilament becomes low and a linear strength of s4.5 g/d or more cannot be obtained, which is not preferable.
本発明で得られるＰＰモノフィラメントは耐摩耗性に優
れかつ４．５ ｆ ／ ｄ以上の直線強度を有すること
が特徴である。得られたモノフィラメントの強度をある
程度犠牲にして、耐摩耗性の改善のみをはかるのであれ
ば、延伸倍率を４〜５倍程度に低く抑えることＣ二より
、毛羽立ちや粉状物の発生しにくいＰＰモノフィラメン
トを得ることは可能であるが逆に４．５ ｆ ／ ｄ以
上の直線強度を保持することが困難Ｃ二なる。得られた
モノフィラメントの直線強度が４．５ ｆ ／ ｄ以上
でないと、撚り、整経１編織などの２次加工工程で該モ
ノフィラメントが破断したり１織物製品が実用時に破れ
易くなるといった問題が生ずる。The PP monofilament obtained by the present invention is characterized by excellent abrasion resistance and linear strength of 4.5 f/d or more. If you only want to improve the abrasion resistance by sacrificing the strength of the obtained monofilament to some extent, it is better to keep the draw ratio low to about 4 to 5 times. Although it is possible to obtain a monofilament, it is difficult to maintain a linear strength of 4.5 f/d or higher. If the linear strength of the obtained monofilament is not 4.5 f/d or more, problems will occur such as the monofilament breaking during secondary processing steps such as twisting, warping, knitting and weaving, or making the woven product more likely to tear during practical use. .
本発明のＰＰモノフィラメントの製造に用いられる溶融
押出装置は公知公用の押出装置で充分でありまた延伸装
置４二ついても、熱水浴、加熱空気浴、加圧蒸気浴など
通常ＰＰモノフィラメントの製造に使用されている一般
的な装置を使用することができる。As the melt extrusion equipment used in the production of the PP monofilament of the present invention, a publicly known extrusion equipment is sufficient, and even if two or more drawing equipment are used, a hot water bath, a heated air bath, a pressurized steam bath, etc. Common equipment used can be used.
本発明のＰＰモノフィラメントの製造方法としては次の
３通りの方法がある。There are the following three methods for producing the PP monofilament of the present invention.
その第１の方法は、
（Ａ）メルトフローレート０．３〜１５ ｒ／１０分の
ポリプロピレン樹脂を溶融押出して得られるモノフィラ
メント状紡出物を該紡出物の原料樹脂の融点以上の雰囲
気温度で延伸することである。ここで原料樹脂の融点と
は、走査型差動熱量計を用いて窒素雰囲気中で試料を１
０ｔｌ：７分の速度で昇温させたときの結晶の融解にと
もなう吸熱カーブのピーク温度をいう。この延伸時の雰
囲気温度が該紡出物の原料樹脂の融点未満の場合Ｃ二は
本発明の目的である耐摩耗性の向上効果が得られない。The first method is as follows: (A) A monofilament-shaped spun product obtained by melt extruding a polypropylene resin with a melt flow rate of 0.3 to 15 r/10 min is heated at an ambient temperature higher than the melting point of the raw material resin of the spun product. The process is to stretch the film. Here, the melting point of the raw resin refers to the melting point of the sample in a nitrogen atmosphere using a scanning differential calorimeter.
0tl: Refers to the peak temperature of the endothermic curve accompanying the melting of the crystal when the temperature is raised at a rate of 7 minutes. If the atmospheric temperature during this stretching is lower than the melting point of the raw material resin of the spun product, C2 cannot achieve the effect of improving wear resistance, which is the object of the present invention.
また該雰囲気温度を極端に高くすると得られるモノフィ
ラメントの強度が出（二くくなりかつ延伸作業時の該モ
ノフィラメントの走行安定性が悪化し、破断が生じるな
どの障害の原因となる。延伸時の雰囲気温度は１６５℃
〜２００℃特Ｃ二好ましくは１）ｏ℃〜１９０℃である
。Furthermore, if the ambient temperature is extremely high, the strength of the obtained monofilament will increase (the monofilament will become stiff) and the running stability of the monofilament during drawing will deteriorate, causing problems such as breakage. Atmosphere during drawing The temperature is 165℃
-200°C, preferably 1) o°C - 190°C.
また延伸倍率としては、４．５ ｆ ／ ｄ Ｊ２Ｌ上
の直線強度を有するためには６倍以上１０倍以下が好ま
しく、実用的（：は６〜８．５倍の範囲の延伸を行うの
が好適である。In addition, the stretching ratio is preferably 6 times or more and 10 times or less in order to have a linear strength of 4.5 f / d J2L. suitable.
第２の方法としては。As for the second method.
β）メルトフローレート０．３〜１５ ｆ ／ ｌ ０
分のポリプロピレン樹脂を溶融押出して得られるモノフ
ィラメント状紡出物を、８５℃以上該ポリプロピレン樹
脂の融点未満の雰囲気温度で１段目の延伸を行なったの
ち、引き続き融点以上の雰囲気温度で２段目の延伸を行
なう方法である。この場合、１段目の延伸を融点未満の
温度の熱水浴で行ない、２段目の延伸を融点以上の温度
の加熱空気浴で行なう組み合せが好ましい。また１段目
の延伸倍率は総延伸倍率の７０〜９５％Ｃ二なるようＣ
；設定するのが適当である。２段目の延伸は上述の第１
の方法の場合と同様、雰囲気温度な１６５℃〜２００℃
好ましくは１フｏ℃〜１９０℃Ｃ：、総延伸倍率を６〜
１０倍特に好ましくは６〜８．５倍の範囲で行なうのが
適当である。β) Melt flow rate 0.3-15 f/l 0
A monofilament-like spun product obtained by melt extruding a polypropylene resin is subjected to a first drawing at an ambient temperature of 85°C or higher and lower than the melting point of the polypropylene resin, and then a second drawing is carried out at an ambient temperature of 85°C or higher and lower than the melting point of the polypropylene resin. This is a method of stretching. In this case, a preferred combination is that the first stage of stretching is carried out in a hot water bath at a temperature below the melting point, and the second stage of stretching is carried out in a heated air bath at a temperature above the melting point. In addition, the first stage stretching ratio should be 70 to 95% of the total stretching ratio.
; It is appropriate to set. The second stage of stretching is the same as the first stage described above.
As in the case of the method, the ambient temperature is 165℃ to 200℃.
Preferably 1° C. to 190° C., the total stretching ratio is 6 to 190° C.
It is appropriate to carry out the treatment in a range of 10 times, particularly preferably 6 to 8.5 times.
第３の方法としては
（Ｃｌメルトフローレート０．３〜１５ｔＺｌＯ分のポ
リプロピレン樹脂を溶融押出して得られるモノフィラメ
ント状紡出物を、温度８５℃以上該ポリプロピレン樹脂
の融点未満の雰囲気温度で延伸したのち、引きつづき該
モノフィラメントを融点以上の雰囲気温度下で熱処理を
行なう方法である。このときの熱処理は延伸モノフィラ
メントを緊張下に加熱することであり、この段階ではさ
ら（；延伸操作は行なわれない。この第３の方法の場合
、延伸を前述の熱水浴で行ない、熱処理を前述の加熱空
気浴で行なう組み合せが好ましい。またこの第３の方法
の場合の延伸倍率も前述の第１の方法の延伸の場合と同
様の理由から６〜１０倍特（二好ましくは６〜８．５倍
の範囲で行なうのが適当である。The third method is to draw a monofilament-shaped spun product obtained by melt-extruding a polypropylene resin with a Cl melt flow rate of 0.3 to 15 tZlO at an ambient temperature of 85°C or higher and lower than the melting point of the polypropylene resin. This is a method in which the monofilament is subsequently heat-treated at an ambient temperature above its melting point.The heat treatment at this time involves heating the drawn monofilament under tension, and no further drawing operation is performed at this stage. In the case of this third method, a combination of stretching in the aforementioned hot water bath and heat treatment in the aforementioned heated air bath is preferred.Also, the stretching ratio in the case of this third method is also the same as that in the aforementioned first method. For the same reason as in the case of stretching, it is appropriate to carry out the stretching in the range of 6 to 10 times, preferably 6 to 8.5 times.
熱処理の温度が該モノフィラメントの原料樹脂の融点未
満の場合には、本発明の目的とする耐摩耗性の改善効果
が得られないので注意する必要がある。また該熱処理の
温度があまり高くなりすぎるとモノフィラメントの分子
配向の戻りが大きくなり、直線強度の低下が大きくなる
ので好ましくなく、該熱処理の温度は１６５℃〜２００
℃好ましくは１７０℃〜１９０℃である。If the temperature of the heat treatment is lower than the melting point of the raw material resin of the monofilament, care must be taken because the effect of improving the abrasion resistance, which is the objective of the present invention, cannot be obtained. Furthermore, if the temperature of the heat treatment is too high, the molecular orientation of the monofilament will largely return and the linear strength will decrease significantly, which is not preferable.
The temperature is preferably 170°C to 190°C.
また熱処理の方法としては定張または弛緩のいずれの方
法でもよいが、本発明の効果をより発揮させるため（二
は弛緩率３〜ｌＯ％の範囲の弛緩熱処理を行なうのが好
適である。また１以上３通りの方法においても通常ＰＰ
モノフィラメントを製造する。一般的な送り速度５０〜
２００ｑＩ＆／分の範囲内の送り速度で製造することが
望ましい。The heat treatment may be carried out by either constant tension or relaxation, but in order to bring out the effects of the present invention (secondly, it is preferable to perform relaxation heat treatment with a relaxation rate in the range of 3 to 10%. Normally PP in 1 or more 3 methods
Manufacture monofilament. Typical feed speed: 50~
It is desirable to manufacture at a feed rate in the range of 200 qI/min.
本発明の製造方法Ｃ：よって得られるＰＰモノフィラメ
ントは、延伸または熱処理工程で該ＰＰモノフィラメン
トの原料樹脂の融点以上の雰囲気温度Ｃ二さらされるこ
とＣ：より、内部歪すなわち残留応力が除去されかつ結
晶化が大巾Ｃ；促進され、硬化したモノフィラメントに
なっているため、該ＰＰモノフィラメントを巻き取る巻
取機のフックガイドやトラバースガイドなどのモノフィ
ラメント製造工程（−おいて、または該ＰＰモノフィラ
メントを用いて製品化するための撚り、整経、編織など
の２次加工工程において、該ＰＰモノフィラメントの表
面の毛羽立ちがなく、また粉状物の発生も防止でき、か
つ直線強Ｑｌ’ ４．５ ｆ ／ ｄ以上の高強度を有
している。Production method C of the present invention: The resulting PP monofilament is exposed to an ambient temperature C that is higher than the melting point of the raw material resin of the PP monofilament in the drawing or heat treatment step. Because the PP monofilament is accelerated and has become a hardened monofilament, the monofilament manufacturing process such as the hook guide or traverse guide of the winding machine that winds the PP monofilament (- or using the PP monofilament) In the secondary processing steps such as twisting, warping, knitting and weaving for commercialization, the surface of the PP monofilament does not become fluffy, the generation of powdery substances can be prevented, and the linear strength Ql' is 4.5 f/d. It has high strength.
この結果、本発明Ｃ二かかわるＰＰモノフィラメントは
船舶漁業用ロープを始め、防虫網、米麦袋、土木用シー
トなどの製造Ｃ：好適に使用することができる。特Ｃ二
繊度１００〜１０００デニールのＰＰモノフィラメント
を使用する織物用途に好適に使用することができる。As a result, the PP monofilament according to the present invention C2 can be suitably used for manufacturing ropes for ships and fishing, insect nets, rice and wheat bags, civil engineering sheets, and the like. It can be suitably used for textile applications using PP monofilaments with a special C2 fineness of 100 to 1000 deniers.
以下、実施例および比較例（二より本発明を具体的に説
明するが本発明はこれＣ；よって限定されるものではな
い。なお、実施例および比較例（：おいて用いた評価方
法は次の方法によった。Hereinafter, the present invention will be specifically explained from Examples and Comparative Examples (2), but the present invention is not limited thereto. According to the method.
メルトフローレート測定： ＪＩ８ Ｋ７２１０（：、準拠。Melt flow rate measurement: JI8 K7210 (:, compliant.
モノフィラメント直線強度の測定： ＪＩ８ Ｌ Ｎｏフ０１＝準拠。Measurement of monofilament linear strength: JI8 L No. 01 = Compliant.
モノフィラメントの耐摩耗性試験
金属面Ｃ二定荷重下Ｃ；モノフィラメント試験片を押圧
し該試験片を往復動させたときの該試験片の表面の毛羽
立ちや粉状物が発生する度合を次の基準で評価する。Abrasion resistance test of monofilament Metal surface C 2 Under constant load C; The degree of fluff and powder generated on the surface of the monofilament test piece when the test piece is pressed and the test piece is reciprocated according to the following criteria. Evaluate with.
○：往復動回数４回では毛羽立ちや粉状物が発生せず、
さらに往復動回数を重ねること（二より、粉状物は発生
するが毛羽立ちは発生せず、モノフィラメント試験片の
表面の発生粉状物を除去すると元の状態Ｃ；近いモノフ
ィラメント表面をしているもの。○: No fluff or powder is generated after 4 reciprocating movements.
Further repeating the number of reciprocating movements (from the second point, powdery matter is generated but no fluff is generated, and when the generated powdery matter on the surface of the monofilament test piece is removed, the original state C; similar to that of the monofilament surface .
×・：往復動回数４回で毛羽立ちや粉状物が発生し、さ
ら（：往復動回数を重ねることにより、繊維状の毛羽立
ちや粉状物の発生がはげしくなるもの。×・: Fuzz and powdery substances are generated after 4 reciprocating movements, and (: The generation of fibrous fuzz and powdery substances increases as the number of reciprocating movements increases.)
実施例１〜６、比較例１〜６
ＭＦＲ３，５４７１０分、融点１６１℃のポリプロピレ
ン樹脂（チッソポリプロＡ３０１４）を口径１．２ ｗ
ａｘのメズルを有する押出機（口径４０ｍ）で溶融混練
温度２３０℃で溶融押出したのち、冷却水槽Ｃ二通して
冷却し未延伸紡出物を得た。引きつづき該未延伸紡出物
を熱風延伸槽（：導き、実施例１は延伸倍率６．５倍、
延伸槽温度１６５℃で、実施例２は延伸倍率６．５倍、
延伸槽温度１７５℃で、実施例３は延伸倍率６．５倍。Examples 1 to 6, Comparative Examples 1 to 6 Polypropylene resin (Tissopolypro A3014) with an MFR of 3,54710 minutes and a melting point of 161°C was used with a diameter of 1.2 W.
The mixture was melt-extruded at a melt-kneading temperature of 230° C. using an extruder (diameter: 40 m) having an ax muzzle, and then cooled by passing through two cooling water tanks C to obtain an unstretched spun product. Subsequently, the unstretched spun product was introduced into a hot air stretching tank (in Example 1, the stretching ratio was 6.5 times,
The stretching tank temperature was 165°C, and the stretching ratio in Example 2 was 6.5 times.
The stretching tank temperature was 175° C., and the stretching ratio in Example 3 was 6.5 times.
延伸槽温度、１８５℃で、実施例４は延伸倍率８．０倍
、延伸槽温度１６５℃で、実施例５は延伸倍率８．０倍
、延伸槽温度ｌ）５℃で、実施例６は延伸倍率８．０倍
、延伸槽温度１８５℃で、延伸速度１００ｓ／分で延伸
し、繊［４００デニールのモノフィラメントを得た。The stretching tank temperature was 185°C, Example 4 had a stretching ratio of 8.0 times and the stretching tank temperature was 165°C, Example 5 had a stretching ratio of 8.0 times and a stretching tank temperature of 1) 5°C, and Example 6 A monofilament of 400 denier was obtained by drawing at a drawing ratio of 8.0 times, a drawing tank temperature of 185° C., and a drawing speed of 100 s/min.
また比較例１〜６として、実施例１〜６と同様のポリプ
ロピレン樹脂を実施例１〜６と同様（ニして、溶融押出
、冷却して未延伸紡出物を得た。Moreover, as Comparative Examples 1 to 6, polypropylene resins similar to those in Examples 1 to 6 were melt-extruded and cooled to obtain unstretched spun products in the same manner as in Examples 1 to 6.
引きつづき該未延伸紡出物を熱風延伸槽に導き。Subsequently, the undrawn spun product is introduced into a hot air drawing tank.
比較例１は延伸倍率６．５倍、延伸槽温度１５０℃で、
比較例２は延伸倍率６．５倍、延伸槽温度９８℃で、比
較例３は延伸倍率８．５倍、延伸槽温度１５０℃で、比
較例４は延伸倍率８．５倍・延伸槽温度９８℃・比較例
５は延伸倍率Ｓ、Ｏ倍、延伸槽温度１１０℃で、比較例
６は延伸倍率５．０倍、延伸槽温度１３０℃で、延伸速
度１００Ｓ／分で延伸し、繊度４００デニールのモノフ
ィラメントを得た。Comparative Example 1 had a stretching ratio of 6.5 times and a stretching bath temperature of 150°C.
Comparative Example 2 has a stretching ratio of 6.5 times and a stretching tank temperature of 98°C, Comparative Example 3 has a stretching ratio of 8.5 times and a stretching tank temperature of 150°C, and Comparative Example 4 has a stretching ratio of 8.5 times and a stretching tank temperature of 98°C. 98°C / Comparative Example 5 was drawn at a stretching ratio of S, O times, and a drawing tank temperature of 110°C; Comparative Example 6 was drawn at a drawing ratio of 5.0 times, a drawing tank temperature of 130°C, and a drawing speed of 100 S/min, and the fineness was 400°C. A denier monofilament was obtained.
実施例７〜１２、比較例７〜１０
実施例１〜６と同様のポリプロピレン樹脂を実施例１〜
６と同様にして、溶融押出、冷却して未延伸紡出物を得
た。引きつづき該未延伸紡出物を温度９８℃の熱水延伸
＠Ｃ導いて、実施例７は延伸倍率６．５倍で、延伸速度
１００ｍ／分で延伸したのち、温度１６５℃の熱風槽（
二導いて弛緩率３％（最終巻板速度が９１ｓ／分）で熱
処理を行ない、実施例日は延伸倍率６．５倍で延伸した
のち、温度１７５℃の熱風槽（：導いて弛緩率３％で熱
処理を行ない、実施例９は延伸倍率６．５倍で延伸速度
１００ｍ７分で延伸したのち、温度１８５℃の熱風槽Ｃ
；導いて弛緩率３％で熱処理を行ない、実施例１０は延
伸倍率８．０倍で・延伸速度１００ｓ／分で延伸したの
ち、温度１６５℃の熱風槽（；導いて弛緩率５％（最終
巻取速度９５ｍ／分）で熱処理を行ない、実施例１１は
延伸倍率８．０倍で、延伸速度１００惰／分で延伸した
のち、温度１７５℃の熱風槽Ｃ；導いて弛緩率５％で熱
処理を行ない、実施例１２は延伸倍率８．０倍で・延伸
速度ｌｏｏｍ／分で延伸したのち、温度１８５℃の熱風
槽Ｃ：導いて弛緩率５％で熱処理を行ない、繊度４００
デニールのモノフィラメントを得た。また比較例７〜１
０として、実施例７〜１２と同様のポリプロピレン樹脂
を用い、実施例７〜１２と同様にして溶融押出、冷却し
て未延伸紡出物を得た。Examples 7 to 12, Comparative Examples 7 to 10 The same polypropylene resins as in Examples 1 to 6 were used in Examples 1 to 12.
In the same manner as in Step 6, an unstretched spun product was obtained by melt extrusion and cooling. Subsequently, the unstretched spun product was subjected to hot water stretching @C at a temperature of 98°C, and in Example 7, it was stretched at a stretching ratio of 6.5 times and a stretching speed of 100 m/min.
Heat treatment was carried out at a relaxation rate of 3% (final winding speed: 91 s/min), and on the day of the example, stretching was carried out at a stretching ratio of 6.5 times, followed by a hot air bath at a temperature of 175°C (with a relaxation rate of 3%). %, and in Example 9, it was stretched at a stretching ratio of 6.5 times and a stretching speed of 100 m for 7 minutes, and then heated in a hot air tank C at a temperature of 185°C.
In Example 10, it was stretched at a stretching ratio of 8.0 times and at a stretching speed of 100 s/min, and then heated in a hot air bath at a temperature of 165°C (; Example 11 was stretched at a stretching ratio of 8.0 times and a stretching speed of 100 inertia/min. In Example 12, after stretching at a stretching ratio of 8.0 times and a stretching speed of room/min, heat treatment was performed at a relaxation rate of 5% in a hot air tank C at a temperature of 185°C, and the fineness was 400.
A denier monofilament was obtained. Also, Comparative Examples 7 to 1
As Example 0, the same polypropylene resin as in Examples 7 to 12 was used, and in the same manner as in Examples 7 to 12, melt extrusion and cooling were performed to obtain unstretched spun products.
引きつづき該未延伸物を温度９８℃の熱水延伸槽に導い
て、比較例７は延伸倍率６．５倍で延伸速度１０ｃ１ｍ
／分で延伸したのち・温度１５０℃の熱風槽Ｃ二導いて
弛緩率３％で熱処理を行ない、比較例８は延伸倍率８．
５倍で延伸速度１００１Ｒ／分で延伸したのち、温度１
５０℃の熱風槽５：導いて弛緩率５％で熱処理を行ない
・比較例９は延伸倍率５．０倍で、延伸速度１００ ｓ
７分で延伸したのち、温度１３０℃の熱風槽に導いて
弛緩率３％で熱処理を行ない、比較例１０は延伸倍率５
．０倍で、延伸速度１００ｍ７分で延伸したのち、温度
１５０℃の熱風槽に導いて弛緩率３％で熱処理を行ない
、繊度４００デニールのモノフィラメントを得た。以上
の実施例１〜１２、比較例１−１０で得られたモノフィ
ラメントを用いて直線強度および耐摩耗性を測定し、結
果をまとめて第１表Ｃ：示した。Subsequently, the unstretched material was introduced into a hot water stretching tank at a temperature of 98°C, and in Comparative Example 7, the stretching ratio was 6.5 times and the stretching speed was 10 cm.
After stretching at a stretching rate of 3.5%, Comparative Example 8 was stretched at a stretching ratio of 8.5%.
After stretching 5 times at a stretching speed of 1001 R/min, the temperature was 1
Hot air tank 5 at 50°C: heat treated at a relaxation rate of 5% - Comparative example 9 had a stretching ratio of 5.0 times and a stretching speed of 100 s
After stretching for 7 minutes, it was led to a hot air bath at a temperature of 130°C and heat treated at a relaxation rate of 3%. Comparative Example 10 had a stretching ratio of 5.
．． After stretching at a stretching speed of 100 m and 7 minutes at a stretching speed of 100 m and 7 minutes, the monofilament was introduced into a hot air bath at a temperature of 150° C. and heat-treated at a relaxation rate of 3% to obtain a monofilament having a fineness of 400 denier. The monofilaments obtained in Examples 1 to 12 and Comparative Examples 1 to 10 were measured for linear strength and abrasion resistance, and the results are summarized in Table 1 C:
実施例１３〜１８．比較例１１〜１６
実施例１〜６と同様のポリプロピレン樹脂を実施例１〜
６と同様にして、溶融押出、冷却して未延伸紡出物を得
た。該未延伸紡出物を温度９８℃の熱水延伸ＷＩＩ：導
いて、延伸速度１００鴨／分で、実施例１３は延伸倍率
５．５倍で１段目の延伸を行なったのち引きつづき温度
１６５℃の熱風延伸槽で延伸倍率１．２倍、総延伸倍率
６．７倍になるように２段目の延伸を行ない１実施例１
４は延伸倍率５．５倍で１段目の延伸を行なったのち引
きつづき温度１７５℃の熱風延伸槽で延伸倍率１．２倍
、総延伸倍率６．７倍になるように２段目の延伸を行な
い、実施例１５は延伸倍率５．５倍で１段目の延伸を行
なったのち引きつづき温度１８５℃の熱風延伸槽で延伸
倍率１．２倍、総延伸倍率６．７倍になるよう（；２段
目の延伸を行ない、実施例１６は延伸倍率６．５倍で１
段目の延伸を行なったのち引きつづき温度１ｆ１５℃の
熱風延伸槽で延伸倍率１．２倍、総延伸倍率７．８倍に
なるように２段目の延伸を行ない、実施例１）は延伸倍
率６．５倍で１段目の延伸を行なったのち引きつづき温
度１７５℃の熱風延伸槽で延伸倍率１．２倍、総延伸倍
率７．８倍Ｃ二なるようＣ２段目の延伸を行ない、実施
例１８は延伸倍率６．５倍で１段目の延伸を行なったの
ち引きつづき温度１８５℃の熱風延伸槽で延伸倍率１．
２倍・総延伸倍率７．８倍（：なるように２段目の延伸
を行ない、繊度４００デニールのモノフィラメントを得
た。また比較例１１〜１６として、実施例１３〜１日と
同様のポリプロピレン樹脂を実施例１３〜１８と同様（
−シて、溶融押出、冷却して未延伸紡出物を得た。該未
延伸紡出物を温度９８℃の熱水延伸槽に導いて・延伸速
度１００ｍ７分で、比較例１１〜１３は延伸倍率５．５
倍で１段目の延伸を行なったのち引きつづき比較例１１
は温度１１０℃の熱風延伸槽で延伸倍率１．２倍、総延
伸倍率、６．７倍（二なるようＣ；２段目の延伸を行な
い、比較例１２は温度１３０℃の熱風延伸槽で延伸倍率
１．２倍、総延伸倍率６．７倍Ｃ：なるよう（二２段目
の延伸を行ない、比較例１３は温度１５０℃の熱風延伸
槽で延伸倍率１．２倍、総延伸倍率６．７倍（；なるよ
うに２段目の延伸を行ない、また、比較例１４〜１６は
延伸倍率４．２５９で１段目の延伸を行なったのち引き
つづき比較例１４は温度１１０℃の熱風延伸槽で、比較
例１５は温度１３０℃の熱風延伸槽で、比較例１６は温
度１５０℃の熱風延伸槽で、延伸倍率１．２５倍、総延
伸倍率６．０倍になるように２段目の延伸を行ない、繊
度４００デニールのモノフィラメントを得た。Examples 13-18. Comparative Examples 11 to 16 The same polypropylene resin as in Examples 1 to 6 was used in Examples 1 to 16.
In the same manner as in Step 6, an unstretched spun product was obtained by melt extrusion and cooling. The unstretched spun product was subjected to hot water stretching WII at a temperature of 98° C., and the first stage of stretching was carried out at a stretching rate of 100/min. In Example 13, the stretching ratio was 5.5 times. 1 Example 1 A second stage of stretching was carried out in a hot air stretching tank at 165°C so that the stretching ratio was 1.2 times and the total stretching ratio was 6.7 times.
In No. 4, the first stage of stretching was performed at a stretching ratio of 5.5 times, and then the second stage was performed at a stretching ratio of 1.2 times and a total stretching ratio of 6.7 times in a hot air stretching tank at a temperature of 175°C. Stretching was carried out, and in Example 15, the first stage of stretching was carried out at a stretching ratio of 5.5 times, followed by a stretching ratio of 1.2 times in a hot air stretching bath at a temperature of 185°C, and a total stretching ratio of 6.7 times. The second stage of stretching was carried out, and in Example 16, the stretching ratio was 6.5 times and 1
After the first stage of stretching, a second stage of stretching was carried out in a hot air stretching tank at a temperature of 1f and 15°C so that the stretching ratio was 1.2 times and the total stretching ratio was 7.8 times. After performing the first stage of stretching at a magnification of 6.5 times, the second stage of C was subsequently stretched in a hot air stretching tank at a temperature of 175°C so that the stretching ratio was 1.2 times and the total stretching ratio was 7.8 times. In Example 18, the first stage of stretching was carried out at a stretching ratio of 6.5 times, and then the stretching ratio was continued at a stretching ratio of 1.
The second stage of stretching was carried out so that the total stretching ratio was 2 times and the total stretching ratio was 7.8 times (:) to obtain a monofilament with a fineness of 400 denier.As Comparative Examples 11 to 16, the same polypropylene as in Examples 13 to 1 was used. The resin was prepared in the same manner as in Examples 13 to 18 (
Then, the mixture was melt extruded and cooled to obtain an unstretched spun product. The unstretched spun product was introduced into a hot water stretching tank at a temperature of 98° C., and the stretching speed was 100 m and 7 minutes. Comparative Examples 11 to 13 had a stretching ratio of 5.5.
Comparative Example 11 continued after performing the first stretching at double
The stretching ratio was 1.2 times in a hot air stretching tank at a temperature of 110°C, and the total stretching ratio was 6.7 times (2-stage C; second stage stretching was performed, and Comparative Example 12 was carried out in a hot air stretching tank at a temperature of 130°C. Stretching ratio: 1.2 times, total stretching ratio: 6.7 times C: (The 22nd stage of stretching was performed, Comparative Example 13 had a stretching ratio of 1.2 times, total stretching ratio: In addition, in Comparative Examples 14 to 16, the first stage of stretching was performed at a stretching ratio of 4.259. Comparative Example 15 was a hot air stretching tank at a temperature of 130°C, and Comparative Example 16 was a hot air stretching tank at a temperature of 150°C. A monofilament having a fineness of 400 denier was obtained by performing stage drawing.
以上、実施例１３〜１８、比較例１１〜１６で得られた
モノフィラメントを用いて直線強度および耐摩耗性を測
定し、結果をまとめて第２表に示した。The monofilaments obtained in Examples 13 to 18 and Comparative Examples 11 to 16 were measured for linear strength and abrasion resistance, and the results are summarized in Table 2.
第 １ 表
第１表から明らかなようＣ二、実施例１〜６は原料ポリ
プロピレン樹脂の融点以上の雰囲気温度で延伸を行なっ
たものであるが得られたＰＰ七ノフィラメントは直線強
度も４．５ ｆ ／ ｄ以上であり、かつ耐摩耗性も優
れたものであった。Table 1 As is clear from Table 1, in Examples 1 to 6, stretching was carried out at an ambient temperature higher than the melting point of the raw material polypropylene resin, and the obtained PP seven filaments also had a linear strength of 4. 5 f/d or more, and the wear resistance was also excellent.
他方、原料ポリプロピレン樹脂の融点未満の温度で延伸
して得られた比較例１〜４に示すモノフィラメントは直
線強度は満足するものも得られるが耐摩耗性が悪いもの
しか得られない。また比較例５〜６に示すよう（：、耐
摩耗性を改善するため（；延伸倍率を低目に抑えると耐
摩耗性は改善されるが反面直線強度が低下し５４−５１
／ｄ以上の直線強度を有するものは得られない。On the other hand, the monofilaments shown in Comparative Examples 1 to 4 obtained by stretching at a temperature below the melting point of the raw material polypropylene resin may have satisfactory linear strength, but only poor abrasion resistance. In addition, as shown in Comparative Examples 5 and 6 (:, To improve abrasion resistance (;; If the stretching ratio is kept low, the abrasion resistance is improved, but on the other hand, the linear strength is decreased.
A product having a linear strength of /d or more cannot be obtained.
実施例７〜１２は、原料ポリプロピレン樹脂の融点未満
の温度で延伸したのち、融点以上の温度で熱処理したも
のであるが得られたモノフィラメントはいずれも直線強
度４，５ ｆ ／ ｄ以上でかつ耐摩耗性も優れたもの
であった。熱処理温度が原料ポリプロピレン樹脂より低
い温度で熱処理して得られた比較例７〜８（：示すモノ
フィラメントは直線強度は４．５ ｆ ／ ｄ以上にな
るが耐摩耗性が寒く実用的でなく、該耐摩耗性を改善す
るため、延伸倍率を低くして延伸すると比較例９〜１０
（二示すように耐摩耗性は改善されるが直線強度が低く
なり４，５ ｔ ／ ｄ以上の直線強邸を有するものは
得られない。Examples 7 to 12 were drawn at a temperature below the melting point of the raw material polypropylene resin and then heat treated at a temperature above the melting point, but the monofilaments obtained all had a linear strength of 4.5 f/d or more and a high durability. The wear resistance was also excellent. Comparative Examples 7 to 8 obtained by heat treatment at a temperature lower than that of the raw material polypropylene resin (: The monofilaments shown have a linear strength of 4.5 f/d or more, but the abrasion resistance is cold and is not practical. Comparative Examples 9 to 10 were stretched at a lower stretching ratio in order to improve wear resistance.
(As shown in Figure 2, the wear resistance is improved, but the linear strength is lowered, making it impossible to obtain a linear strength of 4.5 t/d or more.
また、第２表から明らかなように、１段目の延伸を原料
ポリプロピレン樹脂の融点未満の温度で行ない、引きつ
づき２段目の延伸を融点以上の温度で行なって得られた
モノフィラメントは実施例１３〜１８Ｃ：示すように直
線強度も４．５ｇ／ｄ以上でかつ耐摩耗性も唆れたもの
であった。他方、１段目、２段目のいずれの延伸も原料
ポリプロピレン樹脂の融点未満の温度で行なって得られ
た比較例１１〜１３に示したモノフィラメントは直線強
度は４．５ ｆ ／ ｄ以上を有するが耐摩耗性が悪く
実用上問題になるものであった。また該耐磨耗性を改善
するため６；延伸倍率を低くして延伸すると比較例１４
〜１５（＝示したように得られたモノフィラメントは耐
摩耗性は改善されるものの直線強度が低（４．５ｇ／ｄ
以上の直線強度を有するものは得られなかった。Furthermore, as is clear from Table 2, the monofilaments obtained by carrying out the first drawing at a temperature below the melting point of the raw material polypropylene resin and subsequently carrying out the second drawing at a temperature above the melting point were 13-18C: As shown, the linear strength was 4.5 g/d or more and the abrasion resistance was also good. On the other hand, the monofilaments shown in Comparative Examples 11 to 13 obtained by performing both the first and second stretching at a temperature below the melting point of the raw material polypropylene resin have a linear strength of 4.5 f / d or more. However, the abrasion resistance was poor and caused a practical problem. In addition, in order to improve the abrasion resistance, 6; Comparative Example 14 was stretched at a lower stretching ratio.
~15 (= As shown, the monofilament obtained has improved abrasion resistance but low linear strength (4.5 g/d
No material with higher linear strength was obtained.
以上記述したよう（：、本発明の製造方法（：よってつ
くられたＰＰ七ノフィラメントは直線強度４．ｓｒ／ｄ
以上を有し、かつ毛羽立ちや粉状物の発生のない耐摩耗
性（二も優れたモノフィラメントであることが確認され
た。As described above (:, the manufacturing method of the present invention (::) the PP hexafilament produced has a linear strength of 4.sr/d.
It was confirmed that the monofilament had the above properties and also had excellent abrasion resistance without generating fuzz or powdery substances.
以上
特許出頓人 チ ッ ソ 株式会 社代理人 弁理士
佐々井 彌太部
同 上 野中克彦Patent developer Chisso Co., Ltd. Agent Patent attorney Yatabu Sasai Katsuhiko Nonaka
Claims (3)
リプロピレン樹脂を溶融押出して得られるモノフィラメ
ント状紡出物を該樹脂の融点以上の雰囲気温度で延伸す
ることを特徴とする直線強度４．５ｇ／ｄ以上を有し、
かつ耐摩耗性の改良されたポリプロピレンモノフィラメ
ントの製造方法。(1) A monofilament-like spun product obtained by melt-extruding a polypropylene resin with a melt flow rate of 0.3 to 15 g/10 minutes is stretched at an ambient temperature above the melting point of the resin, with a linear strength of 4.5 g. /d or more,
and a method for producing polypropylene monofilament with improved abrasion resistance.
リプロピレン樹脂を溶融押出して得られるモノフィラメ
ント状紡出物を該樹脂の融点未満の雰囲気温度で１段目
の延伸を行ない引きつづき該樹脂の融点以上の雰囲気温
度で２段目の延伸を行なうことを特徴とする直線強度４
．５ｇ／ｄ以上を有し、かつ耐摩耗性の改良されたポリ
プロピレンモノフィラメントの製造方法。(2) A monofilament-like spun product obtained by melt extruding a polypropylene resin with a melt flow rate of 0.3 to 15 g/10 min is subjected to a first drawing at an ambient temperature below the melting point of the resin, and then the resin is Linear strength 4 characterized by performing the second stage of stretching at an ambient temperature above the melting point
．． A method for producing a polypropylene monofilament having an abrasion resistance of 5 g/d or more and improved abrasion resistance.
ポリプロピレン樹脂を溶融押出して得られるモノフィラ
メント状紡出物を延伸し、引きつづき該樹脂の融点以上
の雰囲気温度で熱処理を行なうことを特徴とする直線強
度４．５ｇ／ｄ以上を有し、かつ耐摩耗性の改良された
ポリプロピレンモノフィラメントの製造方法。(3) A monofilament-shaped spun product obtained by melt-extruding a polypropylene resin with a melt flow rate of 0.3 to 15 g/10 minutes is drawn, and then heat-treated at an ambient temperature equal to or higher than the melting point of the resin. A method for producing polypropylene monofilament having a linear strength of 4.5 g/d or more and improved abrasion resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27987784A JPS61152810A (en) | 1984-12-27 | 1984-12-27 | Production of improved polypropylene monofilament |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27987784A JPS61152810A (en) | 1984-12-27 | 1984-12-27 | Production of improved polypropylene monofilament |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61152810A true JPS61152810A (en) | 1986-07-11 |
Family
ID=17617180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27987784A Pending JPS61152810A (en) | 1984-12-27 | 1984-12-27 | Production of improved polypropylene monofilament |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61152810A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0415783A2 (en) * | 1989-09-01 | 1991-03-06 | Ethicon, Inc. | Thermal treatment of thermoplasticc filaments and filaments |
| US5366786A (en) * | 1992-05-15 | 1994-11-22 | Kimberly-Clark Corporation | Garment of durable nonwoven fabric |
| FR2868438A1 (en) * | 2004-03-30 | 2005-10-07 | Rhodia Chimie Sa | MONOFILAMENTS BASED ON POLYPROPYLENE WITH IMPROVED PROPERTIES |
| EP2594668A1 (en) | 2007-02-28 | 2013-05-22 | Toray Industries, Inc. | Liquid crystalline polyester fiber and process for production of the same |
-
1984
- 1984-12-27 JP JP27987784A patent/JPS61152810A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0415783A2 (en) * | 1989-09-01 | 1991-03-06 | Ethicon, Inc. | Thermal treatment of thermoplasticc filaments and filaments |
| GR900100640A (en) * | 1989-09-01 | 1992-01-20 | Ethicon Inc | Thermal treatment of thermoplastic filaments |
| US5366786A (en) * | 1992-05-15 | 1994-11-22 | Kimberly-Clark Corporation | Garment of durable nonwoven fabric |
| US5798167A (en) * | 1992-05-15 | 1998-08-25 | Kimberly-Clark Worldwide, Inc. | Garment of a durable nonwoven fabric |
| FR2868438A1 (en) * | 2004-03-30 | 2005-10-07 | Rhodia Chimie Sa | MONOFILAMENTS BASED ON POLYPROPYLENE WITH IMPROVED PROPERTIES |
| WO2005100649A1 (en) * | 2004-03-30 | 2005-10-27 | Rhodia Chimie | Polypropylene monofilaments with improved properties |
| EP2594668A1 (en) | 2007-02-28 | 2013-05-22 | Toray Industries, Inc. | Liquid crystalline polyester fiber and process for production of the same |
| US8673174B2 (en) | 2007-02-28 | 2014-03-18 | Toray Industries, Inc. | Liquid crystalline polyester fiber and process for production of the same |
| US9169578B2 (en) | 2007-02-28 | 2015-10-27 | Toray Industries, Inc. | Liquid crystalline polyester fiber and process for production of the same |
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