JPH02221448A - Moisture-retentive nonwoven fabric - Google Patents
Moisture-retentive nonwoven fabricInfo
- Publication number
- JPH02221448A JPH02221448A JP1040073A JP4007389A JPH02221448A JP H02221448 A JPH02221448 A JP H02221448A JP 1040073 A JP1040073 A JP 1040073A JP 4007389 A JP4007389 A JP 4007389A JP H02221448 A JPH02221448 A JP H02221448A
- Authority
- JP
- Japan
- Prior art keywords
- component
- nonwoven fabric
- polyolefin
- fibers
- water
- 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.)
- Granted
Links
- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 27
- 239000000835 fiber Substances 0.000 claims abstract description 34
- 229920000098 polyolefin Polymers 0.000 claims abstract description 11
- LDVVTQMJQSCDMK-UHFFFAOYSA-N 1,3-dihydroxypropan-2-yl formate Chemical compound OCC(CO)OC=O LDVVTQMJQSCDMK-UHFFFAOYSA-N 0.000 claims abstract description 4
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 4
- 239000000194 fatty acid Substances 0.000 claims abstract description 4
- 229930195729 fatty acid Natural products 0.000 claims abstract description 4
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 4
- 239000002131 composite material Substances 0.000 claims description 16
- 239000004952 Polyamide Substances 0.000 claims description 7
- 229920002647 polyamide Polymers 0.000 claims description 7
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 6
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims description 3
- 239000004094 surface-active agent Substances 0.000 abstract description 13
- -1 polyethylene Polymers 0.000 abstract description 8
- 239000004698 Polyethylene Substances 0.000 abstract description 5
- 239000004743 Polypropylene Substances 0.000 abstract description 5
- 229920000573 polyethylene Polymers 0.000 abstract description 5
- 229920001155 polypropylene Polymers 0.000 abstract description 5
- 239000004744 fabric Substances 0.000 abstract description 3
- 229920000728 polyester Polymers 0.000 abstract description 3
- ARIWANIATODDMH-UHFFFAOYSA-N Lauric acid monoglyceride Natural products CCCCCCCCCCCC(=O)OCC(O)CO ARIWANIATODDMH-UHFFFAOYSA-N 0.000 abstract description 2
- 229920001169 thermoplastic Polymers 0.000 abstract description 2
- 239000004416 thermosoftening plastic Substances 0.000 abstract description 2
- 206010016807 Fluid retention Diseases 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000004898 kneading Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 229920001903 high density polyethylene Polymers 0.000 description 3
- 239000004700 high-density polyethylene Substances 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 229910021536 Zeolite Inorganic materials 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- VBICKXHEKHSIBG-UHFFFAOYSA-N beta-monoglyceryl stearate Natural products CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- RZRNAYUHWVFMIP-KTKRTIGZSA-N 1-oleoylglycerol Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCC(O)CO RZRNAYUHWVFMIP-KTKRTIGZSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229960000878 docusate sodium Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- RZRNAYUHWVFMIP-UHFFFAOYSA-N monoelaidin Natural products CCCCCCCCC=CCCCCCCCC(=O)OCC(O)CO RZRNAYUHWVFMIP-UHFFFAOYSA-N 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- APSBXTVYXVQYAB-UHFFFAOYSA-M sodium docusate Chemical compound [Na+].CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC APSBXTVYXVQYAB-UHFFFAOYSA-M 0.000 description 1
Landscapes
- Multicomponent Fibers (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野〕
本発明はポリオレフィン系複合繊維を用いた不織布に関
し、更に詳しくは該複合繊維を熱処理して得られる繊維
の接点が融着された不織布であって、親水性や保水性に
優れ、電池のセパレーターやワイピングクロス等の分野
に利用できる不織布に関する。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a nonwoven fabric using polyolefin composite fibers, and more specifically to a nonwoven fabric in which contact points of fibers obtained by heat-treating the composite fibers are fused. The present invention relates to a nonwoven fabric that has excellent hydrophilicity and water retention properties and can be used in fields such as battery separators and wiping cloths.
（従来の技術〕
ポリプロピレン／ポリエチレン、ポリエステル／ポリエ
チレン等のポリオレフィン系複合繊維を熱処理し、その
低融点成分の融着により繊維の接点を固着させた不織布
が知られている。(Prior Art) Nonwoven fabrics are known in which polyolefin composite fibers such as polypropylene/polyethylene and polyester/polyethylene are heat-treated and the contact points of the fibers are fixed by fusion of the low melting point components.
このような不織布は機械的特性や耐薬品性に優れたもの
であるが、本質的に疎水性であるため、バッテリーセパ
レーターやワイピングクロス等の親水性を要求される用
途には不適当であった。Although such nonwoven fabrics have excellent mechanical properties and chemical resistance, they are inherently hydrophobic, making them unsuitable for applications that require hydrophilicity, such as battery separators and wiping cloths. .
ポリオレフィン系不織布に親水性を付与する目的で、原
料繊維あるいは不織布に界面活性剤を塗布する方法があ
るが、使用中に界面活性剤が流失し、長期間安定した親
水性を維持することが困難である。また、ポリオレフィ
ン中にポリビニルアルコールを混ぜたり、ポリアミドを
グラフ）１１［合させて親水性を付与する方法も知られ
ているが、繊維物性が不充分であったり、経済的でない
等の理由で実用化されていない。In order to impart hydrophilicity to polyolefin nonwoven fabrics, there is a method of coating raw material fibers or nonwoven fabrics with a surfactant, but the surfactant washes away during use, making it difficult to maintain stable hydrophilicity for a long period of time. It is. In addition, methods to impart hydrophilic properties by mixing polyvinyl alcohol with polyolefin or combining polyamide (Graph 11) are also known, but these methods are not practical due to insufficient fiber properties or being uneconomical. has not been standardized.
本発明はポリオレフィン系複合繊維からなる不織布の本
来の特徴である機械的特性や耐薬品性を損うことなく、
耐久性ある保水性を容易かつ安価に付与することを目的
とする。The present invention has been developed without impairing the mechanical properties and chemical resistance, which are the original characteristics of nonwoven fabrics made of polyolefin composite fibers.
The purpose is to provide durable water retention easily and inexpensively.
（課題を解決するための手段〕
本発明者は上記課題を解決するため鋭意研究の結果、複
合繊維の第１成分に特定の界面活性剤を練り込むことに
より所期の目的を達せられることを知り本発明を完成す
るに到った。更に、該第１成分にポリビニルアルコール
あるいはポリアミドを練シ込むことにより保液性を一層
向むことにより優れた保水性を長期間維持させ得ること
を発見し、本願第２の発明および第３の発明を完成した
。(Means for Solving the Problems) In order to solve the above problems, the present inventor has conducted intensive research and found that the desired purpose can be achieved by incorporating a specific surfactant into the first component of the composite fiber. Furthermore, it was discovered that by kneading polyvinyl alcohol or polyamide into the first component, the liquid-retaining property could be further improved, thereby maintaining excellent water-retaining property for a long period of time. Then, the second invention and the third invention of the present application were completed.
本発明で用いるポリオレフィン系複合繊維とは、結晶性
ポリプロピレンあるいは熱可塑性ポリエステル（以下両
者を一括して第２成分ということがある）とポリエチレ
ン（以下第１成分ということがある）とから成り、第１
成分が、繊維の長さ方向に亘って、繊維表面の少くとも
一部を形成するように、鞘芯型あるいは並列型に複合紡
糸した繊維である。両成分の複合比は７０／３０〜３０
／７０ （体積比）の範囲が好ましい。第１成分が３０
７７０未満では、これを熱処理して得られる不織布の繊
維間の接着強度が不充分となり、また第１成分が７０／
３０を超すと繊維自身の強度が不充分となり、したがっ
ていずれの場合も不織布の強度が低下するので好ましく
ない。The polyolefin composite fiber used in the present invention is composed of crystalline polypropylene or thermoplastic polyester (hereinafter both may be collectively referred to as the second component) and polyethylene (hereinafter sometimes referred to as the first component). 1
It is a fiber that is composite-spun in a sheath-core type or parallel type so that the components form at least a part of the fiber surface along the length of the fiber. The composite ratio of both components is 70/30~30
/70 (volume ratio) is preferable. The first component is 30
If it is less than 770, the adhesive strength between the fibers of the nonwoven fabric obtained by heat-treating it will be insufficient, and if the first component is less than 770/
If it exceeds 30, the strength of the fibers themselves will be insufficient, and therefore the strength of the nonwoven fabric will decrease in either case, which is not preferable.
本発明で用いる特定の界面活性剤とは、炭素数が１２以
上の脂肪酸のモノグリセライドであ＃）、具体的にＶｉ
ラウリン酸モノグリセライド、ステアリン酸モノグリセ
ライド、オレイン酸モノグリセライド等が例示すること
ができる。これらの界面活性剤は１種のみ単独で使用し
ても良く、２種以上を混合使用しても良い。複合繊維の
第１成分に練り込む界面活性剤の量は、第１成分に対し
３〜１０％（Ｘ量）である。練り込み量が３％未満では
得られる不織布の保水量の向上の程度が低く、・１０％
を超すと複合繊維の可紡性が低下して、いずれも好まし
くない。The specific surfactant used in the present invention is a monoglyceride of a fatty acid having 12 or more carbon atoms, specifically Vi
Examples include lauric acid monoglyceride, stearic acid monoglyceride, and oleic acid monoglyceride. These surfactants may be used alone or in combination of two or more. The amount of surfactant mixed into the first component of the composite fiber is 3 to 10% (X amount) based on the first component. If the amount of kneading is less than 3%, the degree of improvement in water retention of the obtained nonwoven fabric is low;
If it exceeds this, the spinnability of the composite fiber will decrease, which is not preferable.
本発明で用いるポリビニルアルコールトシテはメル）７
０−レ−） （ＪＩＳ Ｋ ７２１０．表１の条件４に
よる）が１０ｇ／１０ｍ１ｎ以上、ケン化度３０〜７０
％のものが例示できる。The polyvinyl alcohol used in the present invention is mel) 7
(according to condition 4 of JIS K 7210. Table 1) is 10g/10ml or more, degree of saponification 30-70
An example is %.
また、ポリアミドとしてはナイロン６、ナイロン６・６
、ナイロンｔｅ１等通常の繊維用のポリアミドが例示で
きる。これらポリビニルアルコールあるいはポリアミド
０第１成分中に練シ込も兼量は１５％（！量）以下であ
る。練り込み量が１５％を超すと、第１成分と相分離を
起し可紡性が低下したり、不織布中の第１成分による融
着点の強度が低下したシして好ましくなしては、平均粒
径が５ミクロン以下で粒径が１０ミクロン以上のものの
含量が５％以下であるようなゼオライト、シリカゲル等
が例示でき、これら多孔性微粒子には前記界面活性剤を
含浸させて用いるＪ多孔性微粉の第２成分への含有させ
る量は１０％（′ｘ量）以下であり、１０％を超すと可
紡性が低下するので好ましくない。In addition, polyamides include nylon 6, nylon 6.6
Examples include polyamides for ordinary fibers such as nylon TE1. The amount of kneading in the polyvinyl alcohol or polyamide 0 first component is 15% (! amount) or less. If the amount of kneading exceeds 15%, phase separation with the first component may occur, resulting in a decrease in spinnability and a decrease in the strength of the melting point of the first component in the nonwoven fabric. Examples include zeolite, silica gel, etc., which have an average particle size of 5 microns or less and a particle size of 10 microns or more in a content of 5% or less, and these porous fine particles are impregnated with the surfactant and used. The amount of the fine powder contained in the second component is 10% ('x amount) or less, and if it exceeds 10%, the spinnability deteriorates, which is not preferable.
実施例および比較例によυ本発明を更に具体的に説明す
る。なお、各側で用いた用語の定義および物性の測定方
法は以下の通りである。The present invention will be explained in more detail with reference to Examples and Comparative Examples. The definitions of terms used on each side and the methods for measuring physical properties are as follows.
可紡性：１分間に１回以上の単糸切れが起るものを不可
とし×で表示、１分間に１回以下で１０分間で２回以上
−の単糸切れが起るものを可としΔで表示、１０分間で
１回以下の単糸切れが起るものを良とし０で表示。Spinnability: Items in which single yarn breakage occurs more than once per minute are marked as unacceptable, and items in which single yarn breakage occurs less than once per minute and 2 or more times in 10 minutes are acceptable. It is indicated as Δ, and those in which single thread breakage occurs less than once in 10 minutes are considered good and indicated as 0.
繊維強度： ＪＩＳ Ｌ １０１３ （化学繊維フイラ
メント糸試験方法）の引張強さ測定方法に準じ、つかみ
間隔２００ｇ、引張速度２０ｃＩＩ／ｍｉｎで測定した
破断強度が２ダ／ｄ以上のものを良とし０で表示、２ダ
／ｄ未満のものを不可とし×で表示。Fiber strength: According to the tensile strength measurement method of JIS L 1013 (chemical fiber filament yarn testing method), the breaking strength measured at a grip interval of 200 g and a tensile speed of 20 cII/min is 2 da/d or more, and 0 is considered good. Items less than 2 da/d are not allowed and are marked with an x.
保水性：試料の不織布（目付６０１／ｎｆ）から切り取
った試料片（１０ｍｘｌＯａ＊）を、ジオクチルスルホ
サクシネート０．２％およヒイソプロビルアルコール０
．１％を含有する洗浄水３０ ｍｌに１０分間浸した後
、１０分間垂直ＫＭ！り下げ液を切る操作ｔ−１０回繰
り返す。その後、吊り下げた状態でイオン交換水５００
１１１を吹き付け、室温で２４時間風乾する。重量（Ｄ
）ｔ−測定した風乾試料ｆｔ３０％ＫＯＨ水溶液に室温
で６０分間浸漬した後１０分間垂直に吊るして液を切っ
て重量（Ｗ）を測定する。保水率％寓１ｏｏｘ ＣＷ−
Ｄ ）／ＤＩＣよシ算出する。Water retention: A sample piece (10mxlOa*) cut from the sample nonwoven fabric (fabric weight 601/nf) was treated with 0.2% dioctyl sulfosuccinate and 0 hyisopropyl alcohol.
．． After 10 minutes of immersion in 30 ml of wash water containing 1%, vertical KM! Repeat the operation t-10 times to turn off the liquid. After that, 500 ml of ion-exchanged water was added in a suspended state.
111 and air dry at room temperature for 24 hours. Weight (D
) t-measured air-dried sample ft After being immersed in a 30% KOH aqueous solution at room temperature for 60 minutes, the sample was hung vertically for 10 minutes, the liquid was drained, and the weight (W) was measured. Water retention rate 1oox CW-
D)/DIC.
耐久保水性：不織布試料片（１０ｎｘ １０ｃ１１）を
保水性の試験と同様に洗浄処理した後、イオン交換水６
０ｇ／中に室温で１年間保存する。この保存試料片を風
乾した後３０％ＫＯＨ水溶液に浸して保水率を測定する
。Durable water retention: After washing a nonwoven fabric sample piece (10nx 10c11) in the same manner as in the water retention test, it was washed with ion-exchanged water 6
Store at room temperature in 0 g/ml for 1 year. After air-drying this preserved sample piece, it is immersed in a 30% KOH aqueous solution to measure the water retention rate.
実施例１〜６、比較例１〜７
第１の押出機に、メルトフローレート（９７１０ｍ１ｎ
、１９０℃）２５の高密度ポリエチレンおよび第１表に
示した種類と添加量の界面活・性剤、ポリアミドあるい
はポリビニルアルコールを供給し、第２の押出機にメル
トフローレー） （ｆ／１０ｍ１ｎ、 ２３０℃）３
５の結晶性ポリプロピレンを供給し、両押出機の押出量
および押出温度はいずれも６００ｆ／ｈｒ、２５０℃の
条件で、並列型複合紡糸口金（孔数１００）を用いて複
合紡糸し、１５ ｄ／ｆの未延伸糸を得、これを３倍に
延伸し、機械捲縮（１２山／２５ｍ＋１）をかけた後カ
ット長５１ｆｆＫ切断して、５ｄ／ｆのステーブルとし
た。このステープルをローラーカード機でウェブとし、
サクションドライヤーで１４０°Ｃ，３分間熱処理する
ととにより、繊維の接点が高密度ポリエチレンの融着に
より固定された不織布（目付６０１／ｙｙｆ）とした。Examples 1 to 6, Comparative Examples 1 to 7 The first extruder was equipped with a melt flow rate (9710 m1n
, 190°C) 25 high-density polyethylene, a surfactant, polyamide or polyvinyl alcohol of the type and amount shown in Table 1, and melt flow rate) (f/10m1n, 230℃)3
The crystalline polypropylene of No. 5 was supplied, and the extrusion rate and extrusion temperature of both extruders were both 600 f/hr and the extrusion temperature was 250 ° C. Composite spinning was performed using a parallel composite spinneret (number of holes: 100) for 15 d. An undrawn yarn of /f was obtained, which was drawn three times, mechanically crimped (12 threads/25m+1), and then cut to a length of 51ffK to obtain a stable yarn of 5d/f. This staple is made into a web using a roller card machine.
Heat treatment was performed at 140° C. for 3 minutes using a suction dryer to obtain a nonwoven fabric (fabric weight: 601/yyf) in which fiber contacts were fixed by fusion of high-density polyethylene.
これらの不織布より試験片（１０ｃＩ１１×１０１）を
切シ取シ物性の測定を行った結果を第１表に併せ示した
。Test pieces (10 cI 11 x 101) were cut out from these nonwoven fabrics and their physical properties were measured. The results are also shown in Table 1.
実施例７，８、比較例８．９
第１の押出機に実施例１と同様に高密度ポリエチレンと
ステアリン酸モノグリセライド（３％）とを供給し、第
２の押出機には実施例１で用いた結晶性ポリプロピレン
と、第２表に示した界面活性剤含有ゼオライトとを供給
して、その他は実施例１と同様にして不織布を得た。こ
れらの不織布の物性値金弟２表に示した。Examples 7 and 8, Comparative Example 8.9 High-density polyethylene and stearic acid monoglyceride (3%) were supplied to the first extruder in the same manner as in Example 1, and the second extruder was supplied with the same amount as in Example 1. A nonwoven fabric was obtained in the same manner as in Example 1 except that the crystalline polypropylene used and the surfactant-containing zeolite shown in Table 2 were supplied. The physical properties of these nonwoven fabrics are shown in Table 2.
第１表及び第２表に示されたデータから明らかなように
、特定の界面活性剤を含有した複合繊維からなる本願発
明の不織布は、洗浄水で１０回洗浄した後であっても保
水性が大きく、特に、界面活性剤を含浸させた多孔質徴
粒子を含有させた場合は優れた保水性を長期間維持する
ことができ石。このような保水性に優れた不織布はバッ
テリーセパレーターやワイピングクロスとして好適に用
いられる。これに対し、上記界面活性剤を含有させない
場合あるいは紡糸油剤として繊維表面に付着させたもの
では、保水性が劣る。As is clear from the data shown in Tables 1 and 2, the nonwoven fabric of the present invention made of composite fibers containing a specific surfactant retains water even after being washed 10 times with washing water. Stones that are large in size and contain porous particles impregnated with surfactants can maintain excellent water retention for a long period of time. Such nonwoven fabrics with excellent water retention properties are suitably used as battery separators and wiping cloths. On the other hand, when the surfactant is not contained or when it is attached to the fiber surface as a spinning oil, the water retention property is poor.
正置
平成１年７月２１日
平成１年特許願第４
０、Ｏ
７３号
大阪府大阪市北区中之島三丁目６番３２号（〒５３０）
（２０７）チッソ株式会社
代表者野木貞雄
４、代理人
東京都新宿区新宿２丁目８番１号（〒１６０）以上
（電話
３５４−１２８５） ―凡、・Sekigi July 21, 1999 1999 Patent Application No. 40, O 73 3-6-32 Nakanoshima, Kita-ku, Osaka, Osaka Prefecture (530)
(207) Chisso Co., Ltd. Representative Sadao Nogi 4, Agent 2-8-1 Shinjuku, Shinjuku-ku, Tokyo (160) (Telephone 354-1285) - Bon.
Claims (3)
繊維の接点が融着された不織布であつて、複合繊維の第
１成分に炭素数が１２以上の脂肪酸モノグリセライドを
３〜１０％ （重量）含有させたことを特徴とする保水性不織布。(1) A nonwoven fabric in which fiber contacts obtained by heat-treating polyolefin composite fibers are fused, and the first component of the composite fiber contains 3 to 10% (by weight) of fatty acid monoglyceride having 12 or more carbon atoms. A water-retaining nonwoven fabric characterized by
繊維の第１成分に、更にポリビニルアルコールもしくは
ポリアミドを１５％（重量）以下含有させたことを特徴
とする保水性不織布。(2) The water-retaining nonwoven fabric according to claim (1), characterized in that the first component of the composite fiber further contains 15% (weight) or less of polyvinyl alcohol or polyamide.
つて、複合繊維の第２成分に、炭素数が１２以上の脂肪
酸のモノグリセライドを含浸させた多孔質徴粒子を１０
％（重量）以下含有させた保水性不織布。(3) The water-retaining nonwoven fabric according to claim (1) or (2), wherein the second component of the composite fiber is impregnated with 10 or more porous characteristic particles impregnated with a monoglyceride of a fatty acid having 12 or more carbon atoms.
% (weight) or less of water-retentive nonwoven fabric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1040073A JP2622744B2 (en) | 1989-02-20 | 1989-02-20 | Water-retaining nonwoven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1040073A JP2622744B2 (en) | 1989-02-20 | 1989-02-20 | Water-retaining nonwoven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02221448A true JPH02221448A (en) | 1990-09-04 |
| JP2622744B2 JP2622744B2 (en) | 1997-06-18 |
Family
ID=12570752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1040073A Expired - Fee Related JP2622744B2 (en) | 1989-02-20 | 1989-02-20 | Water-retaining nonwoven |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2622744B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0421734A2 (en) * | 1989-10-02 | 1991-04-10 | Chisso Corporation | Conjugate fibres and products formed from them |
| WO1994024347A1 (en) * | 1993-04-08 | 1994-10-27 | Unitika Ltd | Fiber with network structure, nonwoven fabric constituted thereof, and process for producing the fiber and the fabric |
| US5786284A (en) * | 1993-04-08 | 1998-07-28 | Unitika, Ltd. | Filament having plexifilamentary structure, nonwoven fabric comprising said filament and their production |
| WO1998049395A1 (en) * | 1997-04-25 | 1998-11-05 | Kimberly-Clark Worldwide, Inc. | Scrim-like paper wiping product and method for making the same |
| WO2010024147A1 (en) | 2008-08-25 | 2010-03-04 | 三井化学株式会社 | Fiber, nonwoven fabric, and use thereof |
| CN110492043A (en) * | 2019-09-09 | 2019-11-22 | 新乡市中科科技有限公司 | One kind is containing organic-inorganic coating septum for lithium ion battery and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57121657A (en) * | 1981-01-22 | 1982-07-29 | Mitsui Petrochemical Ind | Absorbing material |
| JPS59201365A (en) * | 1983-04-28 | 1984-11-14 | Kanai Hiroyuki | Separator for alkaline battery |
| JPS60194113A (en) * | 1984-02-17 | 1985-10-02 | ザ ダウ ケミカル カンパニー | Wettable olefine polymer fiber |
| JPS6392723A (en) * | 1986-10-06 | 1988-04-23 | Unitika Ltd | Wettable composite fiber and nonwoven cloth made thereof |
-
1989
- 1989-02-20 JP JP1040073A patent/JP2622744B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57121657A (en) * | 1981-01-22 | 1982-07-29 | Mitsui Petrochemical Ind | Absorbing material |
| JPS59201365A (en) * | 1983-04-28 | 1984-11-14 | Kanai Hiroyuki | Separator for alkaline battery |
| JPS60194113A (en) * | 1984-02-17 | 1985-10-02 | ザ ダウ ケミカル カンパニー | Wettable olefine polymer fiber |
| JPS6392723A (en) * | 1986-10-06 | 1988-04-23 | Unitika Ltd | Wettable composite fiber and nonwoven cloth made thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0421734A2 (en) * | 1989-10-02 | 1991-04-10 | Chisso Corporation | Conjugate fibres and products formed from them |
| WO1994024347A1 (en) * | 1993-04-08 | 1994-10-27 | Unitika Ltd | Fiber with network structure, nonwoven fabric constituted thereof, and process for producing the fiber and the fabric |
| US5786284A (en) * | 1993-04-08 | 1998-07-28 | Unitika, Ltd. | Filament having plexifilamentary structure, nonwoven fabric comprising said filament and their production |
| US5795651A (en) * | 1993-04-08 | 1998-08-18 | Unitika, Ltd. | Filament having plexifilamentary structure, nonwoven fabric comprising said filament and their production |
| WO1998049395A1 (en) * | 1997-04-25 | 1998-11-05 | Kimberly-Clark Worldwide, Inc. | Scrim-like paper wiping product and method for making the same |
| US5989682A (en) * | 1997-04-25 | 1999-11-23 | Kimberly-Clark Worldwide, Inc. | Scrim-like paper wiping product and method for making the same |
| WO2010024147A1 (en) | 2008-08-25 | 2010-03-04 | 三井化学株式会社 | Fiber, nonwoven fabric, and use thereof |
| US9074303B2 (en) | 2008-08-25 | 2015-07-07 | Mitsui Chemicals, Inc. | Fibers, nonwoven fabric and uses thereof |
| CN110492043A (en) * | 2019-09-09 | 2019-11-22 | 新乡市中科科技有限公司 | One kind is containing organic-inorganic coating septum for lithium ion battery and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2622744B2 (en) | 1997-06-18 |
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