JPH0892856A - Production of nonwoven fabric excellent in flexibility - Google Patents
Production of nonwoven fabric excellent in flexibilityInfo
- Publication number
- JPH0892856A JPH0892856A JP22340494A JP22340494A JPH0892856A JP H0892856 A JPH0892856 A JP H0892856A JP 22340494 A JP22340494 A JP 22340494A JP 22340494 A JP22340494 A JP 22340494A JP H0892856 A JPH0892856 A JP H0892856A
- Authority
- JP
- Japan
- Prior art keywords
- nonwoven fabric
- filament
- melt
- ethylene
- flexibility
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、使い捨ておむつや生理
用ナプキン等の表面被覆材として適した連続フィラメン
トウェブ表面に凸凹のエンボス模様を付した柔軟性、肌
触り性、隠蔽性の良好な不織布の製法に関する。FIELD OF THE INVENTION The present invention relates to a continuous filament web suitable for use as a surface covering material for disposable diapers, sanitary napkins, etc., having a textured embossed pattern on the surface thereof, and having a good softness, softness, and hiding power. Regarding manufacturing method.
【０００２】[0002]
【従来の技術】連続フィラメントで構成されるスパンボ
ンド不織布は、セパレータ、服の裏地等様々な分野に用
いられている。その中でも、ポリプロピレン連続フィラ
メントに構成されたスパンボンド不織布は、その比重が
小さいこと及び、使い捨ておむつや生理用ナプキン等の
衛生材料の表面被覆材として広く用いられている。2. Description of the Related Art Spunbond nonwoven fabrics composed of continuous filaments are used in various fields such as separators and linings for clothes. Among them, spunbonded non-woven fabric composed of continuous polypropylene filaments has a small specific gravity and is widely used as a surface coating material for sanitary materials such as disposable diapers and sanitary napkins.
【０００３】しかし、一般的にスパンボンド法による不
織布の連続フィラメント自体が短繊維よりなる不織布に
比較して柔軟性、弾力性等に劣るという欠点があった。
このスパンボンド法による不織布に柔軟性・弾力性を付
与する方法として、特開昭４８−１４７１号公報および
特開昭６３−２８２３号公報は熱収縮性の異なる２種類
の樹脂を用いてサイドバイサイド型又は偏心芯鞘型の潜
在捲縮性複合連続フィラメントを集積して不織布ウェブ
を得、このウェブに熱を付与して連続フィラメントに捲
縮を発現させうる方法が提案されている。However, there is a drawback that the continuous filaments of the nonwoven fabric produced by the spunbond method are generally inferior in flexibility and elasticity as compared with the nonwoven fabric made of short fibers.
As a method for imparting flexibility and elasticity to a nonwoven fabric by the spunbond method, JP-A-48-1471 and JP-A-63-2823 disclose side-by-side type using two kinds of resins having different heat shrinkability. Alternatively, a method has been proposed in which eccentric core-sheath type latent crimpable composite continuous filaments are accumulated to obtain a nonwoven web, and heat is applied to the web to develop crimps in the continuous filaments.
【０００４】このスパンボンド不織布は従来のものに比
べて柔軟性及び弾力性に優れており、好ましいものであ
る。しかし、このスパンボンド不織布を製造する際に
は、複合連続フィラメントを形成しなければならず、こ
の形成のためには２種類の樹脂を同時に溶融させ、そし
て複雑な構造の紡糸孔を有するダイ（紡糸口金）を用い
なければならなかった。従って、不織布の生産コストが
高価になりすぎ、このスパンボンド不織布を使い捨てお
むつや生理用ナプキン等の衛生材料の表面被覆材として
用いるのには、採算性が合わなかった。This spunbonded non-woven fabric is excellent in flexibility and elasticity as compared with conventional ones and is preferable. However, when manufacturing the spunbonded nonwoven fabric, a composite continuous filament has to be formed. For this formation, two kinds of resins are melted at the same time, and a die having a spin hole having a complicated structure ( A spinneret) had to be used. Therefore, the production cost of the nonwoven fabric becomes too expensive, and it is not profitable to use this spunbonded nonwoven fabric as a surface coating material for sanitary materials such as disposable diapers and sanitary napkins.
【０００５】一方、特開平１−１４８８６２号は、樹脂
を単独で用い、これを円形又は異形の紡糸孔を持つ紡糸
口金から溶融紡糸し、次いで、これを冷却、延伸固化す
る際に、この連続フィラメントの一方側面のみを冷却す
ることによって、冷却部分は結晶化度を小さくし、非冷
却部分では結晶化度を大きくして連続フィラメントの横
断面において密度を異ならしめ、これによって連続フィ
ラメントに捲縮を顕現させた後、この捲縮性連続フィラ
メントを集積させて不織布を製造する方法を開示する。On the other hand, Japanese Patent Laid-Open No. 1-148862 discloses a method in which a resin is used alone and melt-spun from a spinneret having circular or irregular spinning holes, and then this is cooled and stretched and solidified. By cooling only one side of the filament, the crystallinity is reduced in the cooled part and the crystallinity is increased in the uncooled part to make the cross-sections of the continuous filaments have different densities. The method for producing a nonwoven fabric by integrating the crimpable continuous filaments after demonstrating the above is disclosed.
【０００６】しかし、この方法でプロピレン単独重合体
を使用した場合、繊維径の細い連続フィラメントよりな
るスパンボンド不織布を高速度で紡糸すると、紡糸口金
直下でフィラメント切れが多発し、連続フィラメントを
安定して製造することができなかった。また、低速度で
紡糸すると、フィラメント切れは発生しないものの、生
産効率が低下する。更にプロピレン単独重合体の吐出量
を高速度で紡糸する場合と同量で行おうとすると、連続
フィラメントの繊度が大きくなり、柔軟性に欠けた不織
布しかできない。However, when a propylene homopolymer is used in this method, when a spunbonded nonwoven fabric composed of continuous filaments having a small fiber diameter is spun at a high speed, filament breakage frequently occurs immediately below the spinneret, which stabilizes the continuous filaments. Could not be manufactured. When spinning at a low speed, filament breakage does not occur, but production efficiency decreases. Further, if the discharge amount of the propylene homopolymer is to be the same as in the case of spinning at a high speed, the fineness of the continuous filament becomes large, and only a nonwoven fabric lacking flexibility can be obtained.
【０００７】[0007]
【発明が解決しようとする課題】連続フィラメントに捲
縮を発現させて不織布ウェブに柔軟性及び弾力性を付与
する従来の方法では、使い捨ておむつや生理用ナプキン
等の衛生材の表面被覆材としては肌触り性、ぬめり感、
隠蔽性の面で改善の要求が出されている。本発明は、肌
触り性、ぬめり感のない寸法安定性の優れた連続フィラ
メントよりなる不織布の製法の提供を目的とする。According to the conventional method of imparting flexibility and elasticity to a nonwoven web by expressing crimps in continuous filaments, a surface coating material for sanitary materials such as disposable diapers and sanitary napkins is used. Softness, sliminess,
There is a demand for improvement in terms of concealment. An object of the present invention is to provide a method for producing a non-woven fabric made of continuous filaments which is excellent in softness and sliminess and has excellent dimensional stability.
【０００８】[0008]
【課題を解決するための手段】本発明は、エチレン含量
が０．５〜８重量％のプロピレン・エチレンブロック共
重合体を多数の吐出孔を有する紡糸口金より溶融押出し
て得た溶融紡糸群を風冷装置に導き冷却し、これを吸引
搬出装置を通過させて表面にコブのあるフィラメント群
を得、さらにこれらを平板間のスリットに導き、これを
コロナ放電処理後、傾斜した衝突板に衝突させて得た連
続したフィラメントよりなるウェブをロールコンベアで
導き、ついでこのウェブを加熱ロールで熱圧着して不織
布を得ることを特徴とする柔軟性の優れた不織布の製造
方法を提供するものである。The present invention provides a melt-spun group obtained by melt-extruding a propylene / ethylene block copolymer having an ethylene content of 0.5 to 8% by weight from a spinneret having a large number of discharge holes. It is guided to an air-cooling device and cooled, and this is passed through a suction-delivery device to obtain filament groups with bumps on the surface, which are then guided to slits between flat plates, which are then subjected to corona discharge treatment and then collided with an inclined collision plate. A continuous filament obtained by leading the web with a roll conveyor, and then thermocompression-bonding the web with a heating roll to obtain a nonwoven fabric, which provides a highly flexible nonwoven fabric manufacturing method. .
【０００９】〔発明の概要〕エチレン・プロピレンブロック共重合体 フィラメント素材のエチレン・プロピレンブロック共重
合体は、エチレン含量が０．５〜８重量％、好ましくは
１〜６重量％のエチレン・プロピレンブロック共重合体
である。このもののメルトフローレート（２３０℃、
２．１６ｋｇ荷重）は、１０〜８０ｇ／１０分、好まし
くは２０〜６０ｇ／１０分、結晶化度が２５〜５５％の
ものが好ましい。エチレン含量が０．５重量％未満で
は、連続フィラメント製造時に、後述するコブの発生が
フィラメントに見受けられず、不織布の柔軟性、弾力性
に欠ける。８重量％を越えては紡糸切れが発生しやす
い。[Summary of the Invention] Ethylene / propylene block copolymer The ethylene / propylene block copolymer of the filament material has an ethylene content of 0.5 to 8% by weight, preferably 1 to 6% by weight. It is a copolymer. Melt flow rate of this product (230 ℃,
2.16 kg load) is preferably 10 to 80 g / 10 minutes, preferably 20 to 60 g / 10 minutes, and the crystallinity is 25 to 55%. When the ethylene content is less than 0.5% by weight, no hump, which will be described later, is found in the filament during continuous filament production, and the nonwoven fabric lacks flexibility and elasticity. If it exceeds 8% by weight, spinning breakage tends to occur.
【００１０】製造装置 本発明の不織布を製造するに用いる装置を図１に示す。
図１において、１は多数の吐出孔（孔径は０．３〜０．
５ｍｍφ）を備える紡糸口金（ダイ）、２は溶融紡糸、
３は風冷装置、４は吸引搬出装置（エアーサッカー）、
５，５は平板、５′はスリット、６は針電極、７はター
ゲット電極で６と７によりコロナ放電装置は形成され
る。８は傾斜された衝突板、９は帯電したフィラメント
の群、１０は不織布ウェブ、１１はネットコンベアーベ
ルト、１２は流体（空気）吸引装置、１３は除電器、１
４は加熱エンボスロール、１５は不織布である。 Manufacturing Apparatus An apparatus used for manufacturing the nonwoven fabric of the present invention is shown in FIG.
In FIG. 1, 1 is a large number of discharge holes (hole diameter is 0.3 to 0.
5 mmφ) spinneret (die), 2 is melt spinning,
3 is an air cooling device, 4 is a suction carry-out device (air sucker),
Reference numerals 5 and 5 are flat plates, 5'is a slit, 6 is a needle electrode, 7 is a target electrode, and 6 and 7 form a corona discharge device. 8 is an inclined collision plate, 9 is a group of charged filaments, 10 is a nonwoven web, 11 is a net conveyor belt, 12 is a fluid (air) suction device, 13 is a static eliminator, 1
4 is a heating embossing roll, and 15 is a non-woven fabric.
【００１１】不織布の製造 エチレン・プロピレンブロック共重合体は押出機で２
００〜２５０℃の温度に溶融混練され、紡糸口金１へ供
給され断面が円形状の紡糸口金１の多数の吐出孔より押
出されてフィラメントの連続した群となる。このフィラ
メント群は横方向において円形の分布を示している。 Manufacture of non-woven fabric The ethylene / propylene block copolymer is 2
It is melt-kneaded at a temperature of 00 to 250 ° C., supplied to the spinneret 1, and extruded from a large number of discharge holes of the spinneret 1 having a circular cross section to form a continuous group of filaments. This filament group shows a circular distribution in the lateral direction.
【００１２】これら２，２…は風冷装置３からフィラ
メント進行方向に垂直（横方向）に吹出される１０〜２
５℃の冷却空気により強制冷却される。 ついで、冷却されたフィラメント群は、吸引搬出装置
４の円筒状のノズル内に導かれ、これを通過する。その
際フィラメントは溶融紡糸される。紡糸口金１直下のフ
ィラメントの引取速度（ａ1 ）に対し、この吸引搬出装
置４直下のフィラメントの速度（ａ2 ）の比（ａ2 ／ａ
1 ）をドラフト比と言い、このドラフト比は１００〜５
００、好ましくは２００〜４００である。These 2 and 2 are blown out from the air cooling device 3 perpendicularly (laterally) to the filament advancing direction 10-2.
It is forcibly cooled by cooling air at 5 ° C. Then, the cooled filament group is guided into the cylindrical nozzle of the suction and unloader 4 and passes through it. The filaments are then melt-spun. The ratio (a 2 / a) of the speed (a 2 ) of the filament immediately below the suction / unload device 4 to the take-up speed (a 1 ) of the filament immediately below the spinneret 1.
1 ) is called the draft ratio, and this draft ratio is 100-5.
00, preferably 200 to 400.
【００１３】ドラフト比が１００未満になると変形が小
さく、フィラメント表面にコブの発生が見受けられず、
一方、５００をこえると変形が大きく、紡糸切れが発生
しやすい。このコブの発生は不織布に弾力性を付与する
のに役立つ。このコブの高さＨと、フィラメントの径Ｄ
との比（Ｈ／Ｄ）は、１／３０〜１／５、好ましくは１
／２０〜１／７である。１／５を越えると紡糸切れが発
生しやすい。１／３０未満ではコブの発生がなく、フィ
ラメント表面の凹凸がなく、不織布は柔軟性に欠け、肌
触り性も悪く、ぬめり感が出る。When the draft ratio is less than 100, the deformation is small and no hump is found on the filament surface.
On the other hand, if it exceeds 500, the deformation is large and spinning breakage easily occurs. The generation of the bumps helps impart elasticity to the nonwoven fabric. The height H of this bump and the diameter D of the filament
The ratio (H / D) is 1/30 to 1/5, preferably 1
/ 20 to 1/7. If it exceeds 1/5, spinning breakage tends to occur. If it is less than 1/30, no hump is generated, the filament surface is not uneven, and the nonwoven fabric lacks flexibility, is poor in touch and has a slimy feel.
【００１４】吸引搬出装置４のノズルを通過した表面
にコブのある連続フィラメント群は平板５，５で形成さ
れるスリット５ａ間を通過させ、衝突板８に当接させて
フィラメント群での横幅を拡げる。衝突板８にフィラメ
ントが当接する傾斜角αは、１５〜６０度が好ましい。 このスリット５ａを通過し、衝突板８に当接する間に
連続したフィラメント群２，２…は、針電極６、ターゲ
ット電極７との間でのコロナ放電にて強制帯電される。The continuous filament group having a hump on the surface which has passed through the nozzle of the suction carrying-out device 4 passes between the slits 5a formed by the flat plates 5 and 5 and abuts against the collision plate 8 so that the lateral width of the filament group is reduced. spread. The inclination angle α at which the filament contacts the collision plate 8 is preferably 15 to 60 degrees. The filament groups 2, 2 ... Continued while passing through the slit 5a and contacting the collision plate 8 are forcibly charged by corona discharge between the needle electrode 6 and the target electrode 7.
【００１５】帯電したフィラメント群９は衝突板８に
衝突させ、ネットコンベアー１１上にウェブを堆積す
る。 堆積したウェブ１０は交流、直流除電器１３で除電し
た後、加熱エンボスロール１４，１４で熱圧着して不織
布１５とし、これを巻き取る。加熱エンボスロールの温
度は１３０〜１５５℃が好ましい。The charged filament group 9 collides with the collision plate 8 to deposit the web on the net conveyor 11. The deposited web 10 is destaticized by an AC / DC static eliminator 13 and then thermocompression bonded by heating embossing rolls 14 to form a nonwoven fabric 15, which is wound up. The temperature of the heating embossing roll is preferably 130 to 155 ° C.
【００１６】[0016]
【実施例】 実施例１ 図１に示す製造装置を用いて不織布を製造した。即ち、
エチレン含量が３．６重量％、ＭＦＲ ３０ｇ／１０
分、結晶化度３６％のエチレン・プロピレンブロック共
重合体を用い、０．４ｍｍφの小孔を１００個有する２
００ｍｍφの断面円形状の１錘の紡糸口金より吐出量１
００ｇ／分の条件で押し出した。紡糸口金の下方１．５
ｍの位置にエアーサッカー（吸引搬出装置）を設置し、
５ｋｇ／ｃｍ2 Ｇの圧力でフィラメント速度３，５００
ｍ／分で牽引した。Example 1 A nonwoven fabric was manufactured using the manufacturing apparatus shown in FIG. That is,
Ethylene content 3.6% by weight, MFR 30g / 10
Minute, using an ethylene / propylene block copolymer with a crystallinity of 36%, 100 small holes of 0.4 mmφ 2
Discharge rate 1 from 1 spinneret with a circular cross section of 00 mmφ
It was extruded under the condition of 00 g / min. Below the spinneret 1.5
Install an air sucker (suction / unloading device) at the m position,
Filament speed of 3,500 at a pressure of 5 kg / cm 2 G
Towed at m / min.
【００１７】その際のドラフト比は３３０、フィラメン
ト径（Ｄ）とコブ径（Ｈ）の比率（Ｈ／Ｄ）は１／２０
〜１／１０の範囲内であり、フィラメント表面にコブが
発現した（図２参照）。エアーサッカーのノズルより出
た直後のフィラメント群は、１対の平板で形成されるス
リットを通過し、このスリット通過直後にコロナ放電
０．２ｍｍＡの電流を流してフィラメントを開繊させ傾
斜した衝突板に衝突させて拡幅し、これを回動（３０ｍ
／分）しているネットコンベヤーベルト上に導きウェブ
となし、ついで除電し、１４０℃のエンボスロールで熱
圧着して繊度２．５デニールの不織布を得た。At that time, the draft ratio is 330, and the ratio (H / D) between the filament diameter (D) and the hump diameter (H) is 1/20.
It was within the range of ˜1 / 10, and bumps were expressed on the filament surface (see FIG. 2). Immediately after exiting from the nozzle of the air sucker, the filament group passes through a slit formed by a pair of flat plates, and immediately after passing through the slit, a current of 0.2 mmA of corona discharge is applied to open the filament and the inclined collision plate. It collides with and widens, and it rotates (30m
/ Min) to form a web on a net conveyor belt, and then static elimination was performed, and thermocompression bonding was performed with an embossing roll at 140 ° C to obtain a nonwoven fabric having a fineness of 2.5 denier.
【００１８】比較例１ 実施例１において、エチレン・プロピレンブロック共重
合体の代りに、ＭＦＲが３０ｇ／１０分、結晶化度が６
０％のプロピレン単独重合体を用いることと、エンボス
ロールの温度を１５５℃とする他は同様にして不織布を
得た。この製造の際、エアーサッカーのノズルを通過直
後の連続フィラメントの表面にはコブの発生が見受けら
れなかった（図３）。Comparative Example 1 In Example 1, the ethylene / propylene block copolymer was replaced by an MFR of 30 g / 10 min and a crystallinity of 6
A nonwoven fabric was obtained in the same manner except that 0% propylene homopolymer was used and the temperature of the embossing roll was set to 155 ° C. During this production, no hump was found on the surface of the continuous filament immediately after passing through the nozzle of the air sucker (FIG. 3).
【００１９】比較例２ 実施例１において、エチレン・プロピレンブロック共重
合体の代りに、エチレン含量が３．９重量％、ＭＦＲが
３０ｇ／１０分のエチレン・プロピレンランダム共重合
体を用いる他は同様にして不織布を得た。Comparative Example 2 The same as in Example 1 except that an ethylene / propylene random copolymer having an ethylene content of 3.9% by weight and an MFR of 30 g / 10 min was used in place of the ethylene / propylene block copolymer. To obtain a non-woven fabric.
【００２０】実施例２ 実施例１において、溶融紡糸時のドラフト比を４５０と
し、繊度１．９デニールのフィラメントとする他は同様
にして不織布を得た。Example 2 A nonwoven fabric was obtained in the same manner as in Example 1 except that the draft ratio at the time of melt spinning was 450 and the filament having a fineness of 1.9 denier was used.
【００２１】実施例３ 実施例１においてコブの大きさがフィラメント径の比率
の１／３０〜１／２０の範囲となるようにした他は同様
にして不織布を得た。Example 3 A non-woven fabric was obtained in the same manner as in Example 1 except that the size of the bumps was in the range of 1/30 to 1/20 of the filament diameter ratio.
【００２２】比較例３ 実施例１において、溶融紡糸時のドラフト比を９０とす
る他は同様にして４．２デニールの不織布を得た。Comparative Example 3 A non-woven fabric of 4.2 denier was obtained in the same manner as in Example 1 except that the draft ratio at the time of melt spinning was 90.
【００２３】比較例４ 比較例１において、プロピレン単独重合体の代りにエチ
レン含有率が０．４重量％、結晶化度が５５％のエチレ
ン・プロピレンブロック共重合体を用いた外は同様にし
て不織布を得た。Comparative Example 4 The same procedure as in Comparative Example 1 was repeated except that an ethylene / propylene block copolymer having an ethylene content of 0.4% by weight and a crystallinity of 55% was used instead of the propylene homopolymer. A non-woven fabric was obtained.
【００２４】比較例５ 実施例１において、エチレン含有率が２２重量％、ＭＦ
Ｒが３８ｇ／１０分のエチレン・プロピレンブロック共
重合体を用いて溶融紡糸をしようとしたところ、変形が
大きく、紡糸口金直下で紡糸切れが発生し、連続フィラ
メントを得ることは出きなかった。Comparative Example 5 In Example 1, ethylene content was 22% by weight and MF
When an attempt was made to perform melt spinning using an ethylene / propylene block copolymer having an R of 38 g / 10 min, the deformation was large and spinning breakage occurred directly below the spinneret, and continuous filaments could not be obtained.
【００２５】〔評 価〕各実施例、比較例で得た不織布
について、フィラメント表面のコブの発生の有無、不織
布の柔軟性、肌触り感、ぬめり感、隠蔽性を調べた。結
果を表１に示す。[Evaluation] With respect to the nonwoven fabrics obtained in each of the examples and comparative examples, the presence or absence of humps on the filament surface, the flexibility of the nonwoven fabric, the feeling of touch, the feeling of sliminess and the hiding property were examined. The results are shown in Table 1.
【００２６】[0026]
【表１】 [Table 1]
【００２７】[0027]
【発明の効果】本発明の不織布の製法によれば、柔軟
性、隠蔽性に富み、肌触り性が良好で、ぬめり感のない
不織布が得られる。EFFECTS OF THE INVENTION According to the method for producing a nonwoven fabric of the present invention, a nonwoven fabric which is rich in flexibility and concealing property, has good touch and does not have a slimy feel can be obtained.
【図１】不織布の製造装置の斜視図である。FIG. 1 is a perspective view of a nonwoven fabric manufacturing apparatus.
【図２】本発明の実施例１により得たフィラメントの表
面構造を示す図（３，０００倍）である。FIG. 2 is a diagram (3,000 times) showing the surface structure of a filament obtained in Example 1 of the present invention.
【図３】比較例１で得たプロピレン単独重合体のフィラ
メントの表面構造を示す図（３，０００倍）である。FIG. 3 is a view (3,000 times) showing a surface structure of a filament of a propylene homopolymer obtained in Comparative Example 1.
１ 紡糸口金 ２ フィラメント ３ 風冷装置 ４ 吸引搬出装置 ５ スリット状治具 ６ 針電極 ７ ターゲット電極 ８ 衝突板 ９ 拡幅されたフィラメント １０ ウェブ １１ ネットコンベアー １３ 除電器 １４ 加熱エンボスロール １５ 不織布 DESCRIPTION OF SYMBOLS 1 Spinneret 2 Filament 3 Air-cooling device 4 Suction carrying-out device 5 Slit jig 6 Needle electrode 7 Target electrode 8 Collision plate 9 Widened filament 10 Web 11 Net conveyor 13 Static eliminator 14 Heating embossing roll 15 Nonwoven fabric
Claims (1)
ピレン・エチレンブロック共重合体を多数の吐出孔を有
する紡糸口金より溶融押出して得た溶融紡糸群を風冷装
置に導き冷却し、これを吸引搬出装置を通過させて表面
にコブのあるフィラメント群を得、さらにこれらを平板
間のスリットに導き、これをコロナ放電処理後、傾斜し
た衝突板に衝突させて得た連続したフィラメントよりな
るウェブをロールコンベアで導き、ついでこのウェブを
加熱ロールで熱圧着して不織布を得ることを特徴とする
柔軟性の優れた不織布の製造方法。1. A melt-spun group obtained by melt-extruding a propylene / ethylene block copolymer having an ethylene content of 0.5 to 8% by weight from a spinneret having a large number of discharge holes, and introducing the melt-spun group into an air-cooling device for cooling. This is passed through a suction unloading device to obtain a filament group with bumps on the surface, which are then led to slits between flat plates, which after corona discharge treatment, are made to collide with an inclined collision plate to obtain continuous filaments. A method for producing a non-woven fabric having excellent flexibility, which comprises guiding the resulting web with a roll conveyor and then thermocompressing the web with a heating roll to obtain a non-woven fabric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22340494A JP3510345B2 (en) | 1994-09-19 | 1994-09-19 | Manufacturing method of nonwoven fabric with excellent flexibility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22340494A JP3510345B2 (en) | 1994-09-19 | 1994-09-19 | Manufacturing method of nonwoven fabric with excellent flexibility |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0892856A true JPH0892856A (en) | 1996-04-09 |
| JP3510345B2 JP3510345B2 (en) | 2004-03-29 |
Family
ID=16797620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22340494A Expired - Fee Related JP3510345B2 (en) | 1994-09-19 | 1994-09-19 | Manufacturing method of nonwoven fabric with excellent flexibility |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3510345B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100501421B1 (en) * | 1996-11-22 | 2006-01-12 | 유니챰 가부시키가이샤 | Surface layer of disposable fluid absorbent article |
| JP2008156766A (en) * | 2006-12-21 | 2008-07-10 | Matsushita Electric Ind Co Ltd | Apparatus for producing nonwoven fabric and method for producing nonwoven fabric |
| CN107012590A (en) * | 2017-05-08 | 2017-08-04 | 大连华纶无纺设备工程有限公司 | A kind of lapping machine negative suction system |
| CN107245811A (en) * | 2017-06-16 | 2017-10-13 | 山东康洁非织造布有限公司 | A kind of Spunbonded Nonwovens production technology |
| WO2019065836A1 (en) * | 2017-09-28 | 2019-04-04 | 東レ株式会社 | Spunbond nonwoven fabric |
-
1994
- 1994-09-19 JP JP22340494A patent/JP3510345B2/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100501421B1 (en) * | 1996-11-22 | 2006-01-12 | 유니챰 가부시키가이샤 | Surface layer of disposable fluid absorbent article |
| JP2008156766A (en) * | 2006-12-21 | 2008-07-10 | Matsushita Electric Ind Co Ltd | Apparatus for producing nonwoven fabric and method for producing nonwoven fabric |
| CN107012590A (en) * | 2017-05-08 | 2017-08-04 | 大连华纶无纺设备工程有限公司 | A kind of lapping machine negative suction system |
| CN107245811A (en) * | 2017-06-16 | 2017-10-13 | 山东康洁非织造布有限公司 | A kind of Spunbonded Nonwovens production technology |
| CN107245811B (en) * | 2017-06-16 | 2020-10-20 | 山东康洁非织造布有限公司 | Production process of spunbonded nonwoven fabric |
| WO2019065836A1 (en) * | 2017-09-28 | 2019-04-04 | 東レ株式会社 | Spunbond nonwoven fabric |
| JPWO2019065836A1 (en) * | 2017-09-28 | 2020-09-10 | 東レ株式会社 | Spunbonded non-woven fabric |
| TWI746892B (en) * | 2017-09-28 | 2021-11-21 | 日商東麗股份有限公司 | Spunbond non-woven fabric |
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| Publication number | Publication date |
|---|---|
| JP3510345B2 (en) | 2004-03-29 |
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