JPH05106112A - Polyolefin fiber having durable hydrophilicity - Google Patents
Polyolefin fiber having durable hydrophilicityInfo
- Publication number
- JPH05106112A JPH05106112A JP26478691A JP26478691A JPH05106112A JP H05106112 A JPH05106112 A JP H05106112A JP 26478691 A JP26478691 A JP 26478691A JP 26478691 A JP26478691 A JP 26478691A JP H05106112 A JPH05106112 A JP H05106112A
- Authority
- JP
- Japan
- Prior art keywords
- polyolefin
- fiber
- mol
- hydrophilicity
- copolymer
- 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.)
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- Artificial Filaments (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、耐久親水性を有するポ
リオレフィン繊維に関する。TECHNICAL FIELD The present invention relates to a polyolefin fiber having durable hydrophilicity.
【０００２】[0002]
【従来の技術】ポリオレフィン繊維は、価格上または物
性上の特徴を利用して多くの分野で用いられている。し
かし、そのポリマー構造から起因して疎水性が強く、用
途が限定されていた。従って、用途の拡大のためにも親
水性の改善が強く望まれており、従来から親水化する多
くの試みがなされてきた。ポリオレフィン繊維を親水化
する方法として、（ａ）親水性化合物を繊維表面に付着
させる方法、（ｂ）親水性化合物を繊維表面にグラフト
重合させる方法、（ｃ）繊維を薬液、紫外線または低温
プラズマ等で処理して繊維の表面に親水基を形成させ
る。、（ｄ）親水性化合物をポリマー中に形成させる方
法、等が挙げられる。2. Description of the Related Art Polyolefin fibers are used in many fields due to their characteristics of price and physical properties. However, due to its polymer structure, its hydrophobicity is strong, and its use is limited. Therefore, there is a strong demand for improvement in hydrophilicity in order to expand applications, and many attempts have been made to make hydrophilic in the past. As a method of hydrophilizing a polyolefin fiber, (a) a method of attaching a hydrophilic compound to the fiber surface, (b) a method of graft-polymerizing a hydrophilic compound on the fiber surface, (c) a chemical solution of fiber, ultraviolet ray or low temperature plasma, etc. To form hydrophilic groups on the surface of the fiber. , (D) a method of forming a hydrophilic compound in a polymer, and the like.
【０００３】例えば、（ａ）の方法としては硫酸エステ
ル塩基、リン酸エステル塩基、スルホン酸塩基等の少な
くとも１つの塩基を含むアニオン系界面活性剤でポリプ
ロピレンからなる多孔質膜状物を処理する方法（特開昭
５４−１５３８７２号公報）、ソルビタンの脂肪酸モノ
エステルを有機溶剤に溶解してポリプロピレン等からな
る微多孔質疎水性膜を処理する方法（特公昭５９−５０
１０４９号公報）等がある。For example, as the method (a), a method of treating a porous film made of polypropylene with an anionic surfactant containing at least one base such as a sulfuric acid ester base, a phosphoric acid ester base and a sulfonic acid base. (JP-A-54-153872), a method in which a fatty acid monoester of sorbitan is dissolved in an organic solvent to treat a microporous hydrophobic membrane made of polypropylene or the like (JP-B-59-50).
No. 1049).
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記で
は（ａ）の例として挙げた特開昭５４−１５３８７２号
公報に開示されている方法では恒久親水性に乏しい。ま
た、特公昭５９−５０１０４９号公報に開示されている
処理方法では、有機溶剤を用いなければならないため、
その取扱いまたは安全衛生上に問題がある。一方、
（ｂ）または（ｃ）の方法では量産性が劣ったり、特殊
な装置を要したり、あるいは親水性が十分でない等の問
題を有している。更に、（ｄ）については親水性能を十
分に発現させる親水性化合物がない。However, the method disclosed in JP-A-54-153872 cited above as an example of (a) is poor in permanent hydrophilicity. Further, in the treatment method disclosed in Japanese Patent Publication No. 59-501049, since an organic solvent must be used,
There is a problem in its handling or health and safety. on the other hand,
The method (b) or (c) has problems such as poor mass productivity, requiring a special device, or insufficient hydrophilicity. Further, regarding (d), there is no hydrophilic compound that sufficiently exhibits hydrophilicity.
【０００５】本発明の目的は、繊維の製造にあたって安
全衛生上に問題がなく、量産に適し且つ恒久親水性を有
するポリオレフィン繊維を提供することにある。An object of the present invention is to provide a polyolefin fiber which has no problem in terms of safety and hygiene in producing the fiber, is suitable for mass production and has permanent hydrophilicity.
【０００６】[0006]
【課題を解決するための手段および作用】本発明者等
は、上記（ａ）〜（ｄ）の処理法に基づく課題を解決す
べく鋭意検討した結果、ポリオレフィンに特殊な親水性
ポリオレフィンをブレンドしたものを繊維化することに
より、恒久親水性を有するポリオレフィン繊維が得られ
ることを見いだし、本発明に到達した。 本発明の要旨
は、エチレンを１０モル％以上含み、ビニルアルコール
含量をｂモル％、酢酸ビニル含量をａモル％とすると
き、ｂが１０以上であって、且つｂ／（ａ＋ｂ）の値が
０．１１〜０．８９の範囲にある３成分以上からなる親
水性共重合体ＸとポリオレフィンＹからなることを特徴
とするポリオレフィン繊維にある。Means and Actions for Solving the Problems The inventors of the present invention have conducted extensive studies to solve the problems based on the treatment methods (a) to (d), and as a result, blended a polyolefin with a special hydrophilic polyolefin. It was found that a polyolefin fiber having a permanent hydrophilicity can be obtained by fiberizing the product, and the present invention was accomplished. The gist of the present invention is that when ethylene is contained in an amount of 10 mol% or more, the vinyl alcohol content is b mol%, and the vinyl acetate content is a mol%, b is 10 or more and the value of b / (a + b) is A polyolefin fiber comprising a hydrophilic copolymer X consisting of three or more components in the range of 0.11 to 0.89 and a polyolefin Y.
【０００７】本発明の繊維の一構成成分であるポリオレ
フィンとしては、ポリエチレン、ポリプロピレン、ポリ
３−メチルブテン−１、ポリ４−メチル−ペンテン−１
等を挙げることができる。Polyolefin, which is one component of the fiber of the present invention, includes polyethylene, polypropylene, poly-3-methylbutene-1, poly-4-methyl-pentene-1.
Etc. can be mentioned.
【０００８】本発明の親水性共重合体Ｘにおいて、該共
重合体Ｘ中に占めるエチレンの含量が１０モル％未満で
は該共重合体ＸとポリオレフィンＹとの間に全く相溶性
がなく、該共重合体Ｘのドメイン層が形成され、ポリオ
レフィン繊維が充分な親水性を示さず、好ましくない。
また、該共重合体Ｘ中に占めるビニルアルコールの含量
が１０モル％未満ではポリオレフィン繊維が充分な親水
性を示さず好ましくない。従って、共重合体Ｘ中のエチ
レンが１０モル％以上、ビニルアルコール含量ｂモル％
のｂの値が１０以上という条件下で、酢酸ビニルの含量
をａモル％としたときのｂ／（ａ＋ｂ）の値を０．１１
〜０．８９の範囲にすることにより、該共重合体Ｘとポ
リオレフィンＹとの相溶性を上げ、該共重合体Ｘとポリ
オレフィンＹとの密着性を維持することができる。In the hydrophilic copolymer X of the present invention, when the content of ethylene in the copolymer X is less than 10 mol%, there is no compatibility between the copolymer X and the polyolefin Y, and The domain layer of the copolymer X is formed, and the polyolefin fiber does not show sufficient hydrophilicity, which is not preferable.
If the content of vinyl alcohol in the copolymer X is less than 10 mol%, the polyolefin fiber does not show sufficient hydrophilicity, which is not preferable. Therefore, ethylene in the copolymer X is 10 mol% or more and the vinyl alcohol content is b mol%.
Under the condition that the value of b is 10 or more, the value of b / (a + b) is 0.11 when the content of vinyl acetate is a mol%.
By setting the range to 0.89, the compatibility between the copolymer X and the polyolefin Y can be increased and the adhesiveness between the copolymer X and the polyolefin Y can be maintained.
【０００９】本発明のポリオレフィン繊維は、ポリオレ
フィンＹを９５〜５０重量％と親水性共重合体Ｘを５〜
５０重量％含むポリオレフィンＹと親水性共重合体Ｘの
ブレンドポリマーからなる。親水性共重合体Ｘが５重量
％未満の場合は繊維が充分な親水性を示さない。親水性
共重合体Ｘが５０重量％を超えると繊維化が困難とな
る。The polyolefin fiber of the present invention comprises 95 to 50% by weight of polyolefin Y and 5 to 5 of hydrophilic copolymer X.
It is composed of a blend polymer of polyolefin Y and hydrophilic copolymer X containing 50% by weight. When the hydrophilic copolymer X is less than 5% by weight, the fibers do not show sufficient hydrophilicity. When the hydrophilic copolymer X exceeds 50% by weight, it becomes difficult to form a fiber.
【００１０】上記ポリマーを溶融紡糸、延伸することに
より本発明の耐久親水性を有するポリオレフィン繊維が
得られる。The durable and hydrophilic polyolefin fiber of the present invention can be obtained by melt spinning and drawing the above polymer.
【００１１】[0011]
【実施例】以下、実施例により本発明を更に詳細に説明
するが、本発明でいう親水性の評価は、手抄き紙を作成
し、水浸透性及び水透過性の２つの方法により実施し
た。水浸透性は、試作した手抄き紙にビュウレットによ
り水を１滴滴下し、紙上に落下した水滴が吸収され、光
を当てたときの光沢がなくなった時間を肉眼で判定し
た。EXAMPLES The present invention will be described in more detail below with reference to Examples. The hydrophilicity referred to in the present invention is evaluated by two methods, water-permeability and water-permeability, by making handmade paper. did. The water permeability was determined by visually observing the time when one drop of water was dropped onto a prototype handmade paper with a burette and the water drop dropped on the paper was absorbed to lose the gloss when exposed to light.
【００１２】また、水透過性については、コットンリン
ターパルプ上に試作した手抄き紙を載せ、ビュウレット
により水滴を１滴滴下し、紙上に落下した水滴の集合状
態がなくなるまでの時間を肉眼で測定した。Regarding the water permeability, a trial handmade paper was placed on cotton linter pulp, one drop of water was dropped by a burette, and the time until the aggregated state of the drops dropped on the paper disappeared with the naked eye. It was measured.
【００１３】耐久性については、試験紙をＪＩＳ Ｌ−
０２１７−１０３法に従って洗濯を１０回繰り返し、１
０回後の水浸透性測定及び水透過性測定を行って性能を
評価した。Regarding durability, test paper is JIS L-
Repeat washing 10 times according to 0217-103 method, 1
The performance was evaluated by measuring the water permeability and the water permeability after 0 times.
【００１４】実施例１ 常法によって得られたエチレン含量３２モル％のエチレ
ン・ビニルアルコール共重合体３０重量部を水４０重量
部、氷酢酸２００重量部、１０規定の塩酸１０重量部を
仕込んだ反応器に入れた後、温度４０℃で４時間反応さ
せ、エチレンとビニルアルコールと酢酸ビニルの共重合
体（親水性共重合体Ｘ）を得た。該共重合体Ｘ中のエチ
レンとビニルアルコールと酢酸ビニルのモル比は、３
２：４４：２４であり、ｂ／（ａ＋ｂ）は０．６５であ
った。Example 1 30 parts by weight of an ethylene / vinyl alcohol copolymer having an ethylene content of 32 mol% obtained by a conventional method was charged with 40 parts by weight of water, 200 parts by weight of glacial acetic acid and 10 parts by weight of 10N hydrochloric acid. After being placed in the reactor, the reaction was carried out at a temperature of 40 ° C. for 4 hours to obtain a copolymer of ethylene, vinyl alcohol and vinyl acetate (hydrophilic copolymer X). The molar ratio of ethylene, vinyl alcohol and vinyl acetate in the copolymer X is 3
The ratio was 2:44:24 and b / (a + b) was 0.65.
【００１５】この親水性共重合体Ｘと高密度ポリエチレ
ン（三井石油化学（株）製 Hizex2200J ）とを２０：
８０（重量部）の割合で二軸押出機を使用して溶融混練
してペレット化し、さらに乾燥した。20% of this hydrophilic copolymer X and high density polyethylene (Hizex2200J manufactured by Mitsui Petrochemical Co., Ltd.)
Using a twin-screw extruder, the mixture was melt-kneaded at a ratio of 80 (parts by weight) to be pelletized, and further dried.
【００１６】次いで、このペレットを紡糸機に供給し、
紡糸温度１８０℃として孔径１．０φ、孔数２０の紡糸
口金から吐出両１２．５ｇ／ｍｉｎで紡出させ、紡速３
５０ｍ／ｍｉｎでボビンに巻き取った。得られた未延伸
糸をステープル用延伸機を使用して、延伸温度７０℃で
延伸量が２４０％になるように延伸し、３ｍｍにカット
した。得られた繊維は、単繊維繊度４．９デニール、引
張強度３．４３ｇ／ｄ引張伸度４０．６であった。Then, the pellets are fed to a spinning machine,
At a spinning temperature of 180 ° C., a spinneret with a hole diameter of 1.0 and a number of holes of 20 was spun at a spinning speed of 12.5 g / min and a spinning speed of 3
It was wound on a bobbin at 50 m / min. The obtained unstretched yarn was stretched using a stretching machine for staples at a stretching temperature of 70 ° C. so that the stretching amount was 240%, and cut into 3 mm. The obtained fiber had a single fiber fineness of 4.9 denier and a tensile strength of 3.43 g / d tensile elongation of 40.6.
【００１７】該延伸糸８０重量％と単繊維繊度２．５デ
ニール、繊維長３ｍｍの低密度ポリエチレン繊維２０重
量％を混合した後、角型タピー抄紙機で混抄し、繊維紙
を作成した。その後ヤンキードライヤー型のフエロ板熱
円筒上で１１５℃、１分間乾燥し、接着して目付け５０
ｇ／ｃｍ2 の手抄き紙を作成した。80% by weight of the drawn yarn was mixed with 20% by weight of low-density polyethylene fiber having a single fiber fineness of 2.5 denier and a fiber length of 3 mm, and then mixed with a square tappy paper machine to prepare a fiber paper. After that, it was dried on a Yankee dryer type hot cylinder for 1 minute at 115 ° C, and was glued to give a basis weight of 50.
A handmade paper of g / cm 2 was prepared.
【００１８】つづいて親水性の評価を実施したところ、
表１に示す結果が得られ、耐久親水性を有していること
がわかった。Subsequently, when hydrophilicity was evaluated,
The results shown in Table 1 were obtained and found to have durable hydrophilicity.
【００１９】比較例１ 密度０．９５８ｇ／ｃｍ3 の高密度ポリエチレン（三菱
油化（株）製 三菱ポリエチＪＸ−１０）を実施例１と
同一条件で紡糸、延伸を行った。得られた繊維は、単繊
維繊度５．１デニール、引張強度４．３５ｇ／ｄ、引張
伸度４３．３％であった。Comparative Example 1 A high density polyethylene (Mitsubishi Polyethylene JX-10 manufactured by Mitsubishi Petrochemical Co., Ltd.) having a density of 0.958 g / cm 3 was spun and stretched under the same conditions as in Example 1. The obtained fiber had a single fiber fineness of 5.1 denier, a tensile strength of 4.35 g / d and a tensile elongation of 43.3%.
【００２０】さらに、実施例１と同一条件で目付け５０
ｇ／ｃｍ2 の手抄き紙を作成した。つづいて親水性の評
価を実施したところ、表１に示す結果が得られ、耐久親
水性を有していないことがわかった。Furthermore, a basis weight 50 is obtained under the same conditions as in the first embodiment.
A handmade paper of g / cm 2 was prepared. Subsequently, when the hydrophilicity was evaluated, the results shown in Table 1 were obtained, and it was found that the hydrophilicity was not durable.
【００２１】[0021]
【表１】 [Table 1]
【００２２】[0022]
【発明の効果】以上の説明から明らかな如く、本発明に
よればポリオレフィンに特定の親水性ポリオレフィンを
ブレンドすることにより良好な耐久親水性を有するポリ
オレフィン繊維を提供することが可能となる。As is apparent from the above description, according to the present invention, it is possible to provide a polyolefin fiber having good durable hydrophilicity by blending a specific hydrophilic polyolefin with the polyolefin.
Claims (1)
アルコール含量をｂモル％、酢酸ビニルの含量をａモル
％とするとき、ｂが１０以上であって、且つｂ／（ａ＋
ｂ）の値が０．１１〜０．８９の範囲にある３成分以上
からなる親水性共重合体ＸとポリオレフィンＹとからな
る耐久親水性を有するポリオレフィン繊維。1. When ethylene is contained in an amount of 10 mol% or more, the vinyl alcohol content is b mol%, and the vinyl acetate content is a mol%, b is 10 or more and b / (a +
A polyolefin fiber having durable hydrophilicity, which comprises a hydrophilic copolymer X consisting of three or more components having a value of b) in the range of 0.11 to 0.89 and a polyolefin Y.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26478691A JP2908083B2 (en) | 1991-10-14 | 1991-10-14 | Polyolefin fiber with durable hydrophilicity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26478691A JP2908083B2 (en) | 1991-10-14 | 1991-10-14 | Polyolefin fiber with durable hydrophilicity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05106112A true JPH05106112A (en) | 1993-04-27 |
| JP2908083B2 JP2908083B2 (en) | 1999-06-21 |
Family
ID=17408181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26478691A Expired - Fee Related JP2908083B2 (en) | 1991-10-14 | 1991-10-14 | Polyolefin fiber with durable hydrophilicity |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2908083B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6287730B1 (en) | 1998-08-14 | 2001-09-11 | Celgard Inc. | Hydrophilic polyolefin having a coating containing a surfactant and an EVOH copolymer |
| US6537696B2 (en) | 2000-12-20 | 2003-03-25 | Daramic, Inc. | Nonwoven separator for a nickel-metal hydride battery |
| WO2003054984A1 (en) | 2001-12-19 | 2003-07-03 | Daramic, Inc. | A melt blown battery separator |
| WO2021053041A1 (en) * | 2019-09-16 | 2021-03-25 | Mattex International Sarl | Water-retaining artificial turf |
-
1991
- 1991-10-14 JP JP26478691A patent/JP2908083B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6287730B1 (en) | 1998-08-14 | 2001-09-11 | Celgard Inc. | Hydrophilic polyolefin having a coating containing a surfactant and an EVOH copolymer |
| KR100564834B1 (en) * | 1998-08-14 | 2006-03-28 | 셀가드 인코포레이티드 | A hydrophilic polyolefin |
| US6537696B2 (en) | 2000-12-20 | 2003-03-25 | Daramic, Inc. | Nonwoven separator for a nickel-metal hydride battery |
| WO2003054984A1 (en) | 2001-12-19 | 2003-07-03 | Daramic, Inc. | A melt blown battery separator |
| US6692868B2 (en) | 2001-12-19 | 2004-02-17 | Daramic, Inc. | Melt blown battery separator |
| US7214444B2 (en) | 2001-12-19 | 2007-05-08 | Daramic, Inc. | Melt blown battery separator |
| WO2021053041A1 (en) * | 2019-09-16 | 2021-03-25 | Mattex International Sarl | Water-retaining artificial turf |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2908083B2 (en) | 1999-06-21 |
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