JPH0663167B2 - Support for producing open-pore nonwoven fabric and method for producing open-pore nonwoven fabric using the same - Google Patents

Support for producing open-pore nonwoven fabric and method for producing open-pore nonwoven fabric using the same

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Publication number
JPH0663167B2
JPH0663167B2 JP60208336A JP20833685A JPH0663167B2 JP H0663167 B2 JPH0663167 B2 JP H0663167B2 JP 60208336 A JP60208336 A JP 60208336A JP 20833685 A JP20833685 A JP 20833685A JP H0663167 B2 JPH0663167 B2 JP H0663167B2
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JP
Japan
Prior art keywords
support
nonwoven fabric
opening
producing
projection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP60208336A
Other languages
Japanese (ja)
Other versions
JPS6269868A (en
Inventor
磨 鈴木
哲 野崎
茂夫 今井
信 石神
利夫 小林
Original Assignee
ユニ・チヤ−ム株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ユニ・チヤ−ム株式会社 filed Critical ユニ・チヤ−ム株式会社
Priority to JP60208336A priority Critical patent/JPH0663167B2/en
Priority to EP86307217A priority patent/EP0215684B1/en
Priority to DE8686307217T priority patent/DE3685277D1/en
Priority to ES8602422A priority patent/ES2002406A6/en
Priority to KR1019860007891A priority patent/KR920009286B1/en
Publication of JPS6269868A publication Critical patent/JPS6269868A/en
Priority to US07/860,679 priority patent/US5414914A/en
Publication of JPH0663167B2 publication Critical patent/JPH0663167B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、開孔不織布用支持体およびこれを用いる開孔
不織布の製造方法に関する。さらに詳しくは、生理用ナ
プキン、使い捨ておむつなどの吸収性物品の表面材とし
ての開孔不織布を高速水流の噴射により繊維交絡処理し
て製造するときに用いる繊維ウエブの支持体およびこれ
を用いて開孔不織布を製造する方法に関する。
TECHNICAL FIELD The present invention relates to a support for open-hole nonwoven fabric and a method for producing an open-hole nonwoven fabric using the same. More specifically, a support for a fibrous web to be used when a perforated nonwoven fabric as a surface material for absorbent articles such as sanitary napkins and disposable diapers is produced by performing a fiber entanglement treatment by jetting a high-speed water stream, and a support using the fibrous web. The present invention relates to a method for manufacturing a porous nonwoven fabric.

(従来の技術) 従来、開孔不織布を製造する技術として、たとえば、次
のものが知られている。
(Prior Art) Conventionally, for example, the following is known as a technology for producing an apertured nonwoven fabric.

(1)メツシユ上に繊維ウエブを載せ、その上方から高
速水流を噴射することにより繊維分配と繊維交絡処理を
なし、かつ、同時に前記メツシユの下方から吸引排水す
る方法がある。この方法では、前記メツシユのナツクル
部を利用して繊維ウエブに開孔を賦与するものである
が、前記メツシユには平面部がなく、噴射された水流が
前記メツシユを透過してそのエネルギーが繊維交絡処理
に100%利用されない。したがつて、繊維ウエブに開孔
を形成することは可能であるが、繊維交絡の効率が低
く、しかも充分な繊維交絡強度をうることが困難であ
る。また前記ナツクル部の高さが充分でないため、繊維
分配が充分に行われない。したがつて、形成された不織
布の開孔は繊維が残存して輪郭が不明瞭なものとなる。
(1) There is a method in which a fiber web is placed on a mesh, and a high-speed water stream is jetted from above to perform fiber distribution and fiber entanglement treatment, and at the same time, suction and drain from below the mesh. In this method, holes are provided in the fiber web by using the mesh part of the mesh, but the mesh does not have a flat part, and the jetted water flow passes through the mesh and its energy is Not 100% used for confounding. Therefore, although it is possible to form openings in the fiber web, the efficiency of fiber entanglement is low and it is difficult to obtain sufficient fiber entanglement strength. Further, since the height of the knuckle portion is not sufficient, the fibers are not sufficiently distributed. Therefore, the open pores of the formed non-woven fabric have an unclear contour due to residual fibers.

(2)メツシユ上に繊維ウエブを載せ、さらにその上か
ら開孔すべきパターンに対応する開孔を有するスクリー
ンを載せ、前記スクリーン上から高速水流を噴射するこ
とにより繊維分配と繊維交絡処理をなし、かつ、同時に
前記メツシユの下方から吸引排水する方法がある。この
方法では、前記スクリーンの非開孔領域の下に位置する
繊維には高速水流が噴射されないし、また前記スクリー
ンの開孔領域に位置する繊維も、前記(1)の方法と同
じく噴射された水流が前記メツシユを透過してそのエネ
ルギーが繊維交絡処理に100%利用されないため、その
交絡の効率が低く、しかも充分な繊維交絡強度をうるこ
とができない。さらに形成された不織布の開孔も、前記
(1)の方法と同じく繊維が残存して輪郭が不明瞭なも
のとなる。
(2) A fiber web is placed on the mesh, and a screen having openings corresponding to the pattern to be opened is placed on the mesh, and a high-speed water stream is jetted from the screen for fiber distribution and fiber entanglement treatment. At the same time, there is a method of sucking and draining from below the mesh. In this method, the high-speed water stream is not jetted to the fibers located under the non-opened area of the screen, and the fibers located in the open area of the screen are also jetted as in the method (1). Since the water flow does not pass through the mesh and 100% of the energy is not used for the fiber entanglement treatment, the efficiency of the entanglement is low and sufficient fiber entanglement strength cannot be obtained. Further, the pores of the formed non-woven fabric also have unclear contours because the fibers remain as in the method (1).

(3)所定サイズ・パターンの開孔を有する平面板上に
繊維ウエブを載せ、その上方から高速水流を噴射するこ
とにより繊維分配と繊維交絡処理をなし、かつ、同時に
前記平面板の下方から吸引排水する方法がある。この方
法では、繊維交絡に寄与する平面の非開孔領域を有する
ため、繊維交絡の効率と強度が前記二つの方法に比較し
て優れてはいるが、いまだ充分ではないばかりでなく、
形成された不織布の開孔状態もまた然りである。
(3) A fiber web is placed on a flat plate having openings of a predetermined size and pattern, and a high-speed water stream is jetted from above to perform fiber distribution and fiber entanglement processing, and at the same time suction from below the flat plate. There is a way to drain. In this method, since it has a plane non-opened area that contributes to fiber entanglement, although the efficiency and strength of fiber entanglement are excellent as compared with the above two methods, not only is it still not sufficient,
The open state of the formed nonwoven fabric is also the same.

(発明が解決しようとする問題点) 前記三つの方法において、比較的明瞭な開孔と所定の強
度を有する不織布をうるには、多量の水とその高い噴射
圧力が要求され、甚だ非効率にして不経済である。した
がつて、前記何れの方法も、吸収性物品の表面材として
好適ではない。
(Problems to be solved by the invention) In the above three methods, in order to obtain a nonwoven fabric having relatively clear openings and a predetermined strength, a large amount of water and a high injection pressure thereof are required, which causes a great inefficiency. Is uneconomical. Therefore, none of the above methods is suitable as a surface material for absorbent articles.

本発明の目的は、新規にして独得な構造を有する支持体
を用いることにより前記問題点を解決しうる開孔不織布
の製造方法を提供することにある。
It is an object of the present invention to provide a method for producing an apertured nonwoven fabric which can solve the above problems by using a support having a novel and unique structure.

(問題点を解決するための手段) 前記問題点を解決するための本発明手段とするところ
は、連続する平滑表面上に点在する多数の突起を有し、
繊維ウエブの下面に配置する突起不織布の製造用支持体
において、前記突起は、該突起の頂点の面積が小さくて
該突起の基底部に向かつて漸次広がつている形状であつ
て前記繊維ウエブの移動方向側である該突起の前側とは
逆方向側である該突起の後側面に開口部を有することを
特徴とする前記支持体およびこれを用いる不織布の製造
方法に存する。
(Means for Solving Problems) The means for solving the problems according to the present invention is to have a large number of protrusions scattered on a continuous smooth surface,
In the support for producing a protrusion nonwoven fabric arranged on the lower surface of the fibrous web, the protrusion has a shape in which the area of the apex of the protrusion is small and gradually widens toward the base of the protrusion. The support and the method for producing a nonwoven fabric using the support have an opening on the rear side of the protrusion, which is opposite to the front side of the protrusion on the moving direction side.

第1図〜第5図には、開孔不織布を高速水流の噴射によ
り繊維交絡処理して製造するときに用いる繊維ウエブの
支持体11を示してある。支持体11は所要直径と長さとを
有するシリンダーに形成されている。支持体11の平滑表
面12上には、一定間隔をおいて点在し、繊維ウエブ28の
移動方向(第5図および第6図のA方向)側である前側
とは逆方向側である後側面に排水用の開口部13を有する
多数の突起14が配設されている。
FIGS. 1 to 5 show a support 11 of a fibrous web which is used when a perforated nonwoven fabric is subjected to a fiber entanglement treatment by a high-speed water jet. The support 11 is formed in a cylinder having the required diameter and length. After being scattered on the smooth surface 12 of the support 11 at regular intervals, it is on the opposite side to the front side which is the moving direction (A direction in FIGS. 5 and 6) of the fibrous web 28. A large number of protrusions 14 each having an opening 13 for drainage are provided on the side surface.

突起14は、繊維ウエブに対する開孔形成効率を高め、か
つ、形成された不織布が支持体11から剥離され易くする
ため、突起14の頂点部の面積が小さく基底部に向つて漸
次広がつている形状、たとえば、ドーム状に形成されて
いることが好ましい。突起14の直径は0.3〜15mmφであ
り、かつ、その高さは0.4〜10mmであることが、形成さ
れた不織布に明瞭な開孔を賦与するうえで好ましい。
The protrusion 14 has a small area at the apex of the protrusion 14 and gradually widens toward the base portion in order to increase the efficiency of forming holes in the fibrous web and to facilitate peeling of the formed nonwoven fabric from the support 11. It is preferably formed in a shape, for example, a dome shape. It is preferable that the diameter of the protrusions 14 is 0.3 to 15 mmφ and the height thereof is 0.4 to 10 mm in order to impart clear openings to the formed nonwoven fabric.

突起14の配置ピツチは1〜15mmであることが好ましい。
1mm以下であると、形成された不織布の開孔部分がつな
がつてしまい、15mm以上であると、各開口部13間の距離
が大きくなつて、それら間の平滑表面12上の水を後記す
る吸引手段による吸引排出ができず残留することにな
る。その結果、繊維ウエブの地合が乱れるとともに繊維
の交絡強度の向上がはかれない。
The arrangement pitch of the protrusions 14 is preferably 1 to 15 mm.
If it is 1 mm or less, the open part of the formed nonwoven fabric is connected, and if it is 15 mm or more, the distance between the openings 13 is increased, and suction on the smooth surface 12 between them is described later. It cannot be sucked and discharged by the means and remains. As a result, the formation of the fiber web is disturbed and the fiber entanglement strength cannot be improved.

突起14の開口部13は、繊維ウエブが支持体11上に置かれ
てその上方から高速水流が噴射されたとき、繊維ウエブ
が開口部13内に入り込まないような、平滑表面に対する
開口面角度αを有していることが必要である。最も好ま
しい開口面角度は実質的に直角(90゜)であるが、75〜
105゜(α)であれば、これは許容範囲に入れられう
る。
The opening 13 of the protrusion 14 has an opening surface angle α with respect to a smooth surface that prevents the fiber web from entering the opening 13 when the fiber web is placed on the support 11 and a high-speed water stream is jetted from above the support 11. It is necessary to have The most preferable opening surface angle is substantially a right angle (90 °),
At 105 ° (α), this can be accepted.

開口部13群の総面積は支持体11の面積の2〜30%である
ことが好ましい。2%以下であると、吸引手段による吸
引抵抗が大きくなつて充分な排水効果がえられなくなる
ばかりでなく、吸引手段による吸引効率も低下し甚だ不
経済である。
The total area of the group of openings 13 is preferably 2 to 30% of the area of the support 11. When it is 2% or less, not only is the suction resistance of the suction means increased and a sufficient drainage effect cannot be obtained, but also the suction efficiency of the suction means is reduced, which is extremely uneconomical.

支持体11は、これに高速水流が衝突したとき反発流とな
つて再び繊維交絡に寄与しうる硬度を有するステンレス
などの金属板で形成されうる。また突起14は前記金属板
を打ち抜き法により賦型されうる。図示例では、支持体
としてシリンダーに形成されたものを示してあり、これ
が最も好ましいが、場合によつては、平面板や弯曲板で
あつてもよい。
The support 11 can be formed of a metal plate such as stainless steel having a hardness that can be a repulsive flow when the high-speed water flow collides with the support 11 and can contribute to the fiber entanglement again. Further, the protrusion 14 can be formed by punching the metal plate. In the illustrated example, a support formed in a cylinder is shown, which is the most preferable, but it may be a flat plate or a curved plate in some cases.

もとより、突起14は、前述の条件を満す限り、賦与しよ
うとする開孔パターンに応じた任意の配置パターンとす
ることができ、図示例に限定されない。
Needless to say, the protrusions 14 can have any arrangement pattern corresponding to the opening pattern to be provided as long as the above-mentioned conditions are satisfied, and the present invention is not limited to the illustrated example.

第6図には、支持体11が不織布の製造装置中に配置され
た例を示してある。この装置は、支持体11を除いて、本
出願人が特開昭57−39268、同59−125954(特公昭62−5
7733)で開示しているものを利用することが好ましく、
必要ならば、その詳細はそれらを参照されたい。ここで
は、これら装置の一例を概説するにとどめる。装置は、
予備処理部16と、本格処理部17と、水分絞り部18とを含
んでいる。予備処理部16は、ロール群19に支持され、完
成不織布に開孔を形成しないメツシユの透水性ベルト20
と、上部に配置された高速水流を噴射するノズル手段21
と、下部に配置されたサクシヨン手段22とからなつてい
る。本格処理部17は、矢印23の方向に回動するシリンダ
ー支持体11と、図面に所定間隔をおいて配置された数個
のノズル手段24と、内部に配置されたサクシヨン手段25
とからなつている。支持体11に配置された第1図〜第5
図示の突起14の開口部13は、繊維ウエブ28(支持体11)
の移動方向と逆方向(第6図右方向)に向けられてい
る。水分絞り部18は一対のプレスロール26からなつてい
る。カートで形成された繊維ウエブ28は、ベルト20上で
ノズル手段21のオリフイスから高速水流により予備的に
繊維交絡処理され、繊維に作用し終わつた水流はサクシ
ヨン手段22により吸引排出される。このように予備的処
理により或る程度に繊維交絡された繊維ウエブ28は、さ
らに支持体11上で各ノズル手段24のオリフイスからの高
速水流により本格的に繊維交絡処理されると同時に開孔
を賦与され、繊維に作用し終わつた水流はサクシヨン手
段25により吸引排出される。次いで、このように本格的
処理により開孔が賦与され繊維交絡されて形成された不
織布は、ロール群27で支持される移送ベルト29を経て絞
りロール26により該不織布に含まれる水分を絞り出され
て、次の乾燥工程、巻き取り工程へ移送される。
FIG. 6 shows an example in which the support 11 is arranged in the nonwoven fabric manufacturing apparatus. This apparatus, except for the support 11, is disclosed in Japanese Patent Application Laid-Open Nos. 57-39268 and 59-125954 (Japanese Patent Publication No. 62-539).
7733), it is preferable to use the one disclosed in
See them for details if necessary. Here, only one example of these devices will be outlined. The device is
It includes a preliminary processing unit 16, a full-scale processing unit 17, and a moisture squeezing unit 18. The pretreatment unit 16 is supported by the roll group 19 and is a mesh water-permeable belt 20 that does not form openings in the finished nonwoven fabric.
And the nozzle means 21 for injecting a high-speed water stream arranged above
And a saxion means 22 arranged at the bottom. The full-scale processing unit 17 includes a cylinder support 11 which rotates in the direction of an arrow 23, several nozzle means 24 arranged at predetermined intervals in the drawing, and a saxion means 25 arranged inside.
It consists of 1 to 5 arranged on the support 11
The openings 13 of the protrusions 14 shown in the figure are provided with a fiber web 28 (support 11).
Is directed in the opposite direction (rightward in FIG. 6). The water squeezing unit 18 is composed of a pair of press rolls 26. The fibrous web 28 formed in the cart is preliminarily subjected to a fiber entanglement treatment on the belt 20 from the orifice of the nozzle means 21 by a high-speed water stream, and the water stream which has finished acting on the fibers is sucked and discharged by the saxion means 22. The fiber web 28, which has been entangled to a certain extent by the preliminary treatment as described above, is further subjected to a full-scale fiber entanglement treatment by the high-speed water flow from the orifice of each nozzle means 24 on the support 11 and at the same time, is opened. The water stream that has been imparted and has finished acting on the fibers is sucked and discharged by the saxion means 25. Then, the nonwoven fabric thus formed by full-scale treatment with open pores and fiber entanglement is squeezed out the water content contained in the nonwoven fabric by the squeezing roll 26 through the transfer belt 29 supported by the roll group 27. Then, it is transferred to the next drying process and winding process.

高速水流の噴射圧力は好ましくは5〜100kg/cmであ
り、さらに好ましくは40〜90kg/cmである。5kg/cm
以下であると水量を増大しても繊維交絡しうるだけの
エネルギーがえられず、繊維交絡強度、開孔状態がとも
に不充分であり、100kg/cm以下であると、経費が増
大して商業的に不利である。水量は噴射圧力、オリフイ
スの径と個数により決まるものである。
The injection pressure of the high-speed water stream is preferably 5 to 100 kg / cm 2 , and more preferably 40 to 90 kg / cm 2 . 5 kg / cm
If it is 2 or less, energy enough for fiber entanglement cannot be obtained even if the amount of water is increased, the fiber entanglement strength and the open state are insufficient, and if it is 100 kg / cm 2 or less, the cost increases. Are commercially disadvantageous. The amount of water is determined by the injection pressure, the diameter and the number of orifices.

(作用) 繊維ウエブ28に対する高速水流の噴射作用により、各突
起14上に位置する繊維が各突起14間の平面に移動分配さ
れて開孔が形成され、同時に各突起14間に分配された繊
維はそこで交絡される。繊維に作用し終わつた水流は開
口部13からサクシヨン手段25により吸引排出される。こ
の場合、平滑表面12での繊維交絡は、そこで衝突する反
発流によつても行われるので、その効率がメツシユ支持
体に比較してきわめて高い。
(Operation) By the jetting action of the high-speed water flow on the fiber web 28, the fibers located on each projection 14 are moved and distributed to the plane between the projections 14 to form the openings, and at the same time, the fibers distributed between the projections 14 are distributed. Is confounded there. The water flow which has finished working on the fibers is sucked and discharged from the opening 13 by the saxion means 25. In this case, the fiber entanglement on the smooth surface 12 is also carried out by the repulsive flow impinging on it, so that its efficiency is extremely higher than that of the mesh support.

(実施例) 第6図に示す装置を利用して、ポリエステル100%で目
付30g/0mの繊維ウエブを、噴射圧力70kg/cm、流
量9.5/m・secの柱状水流により処理することによ
り70m/minの速度で第7図に示す開孔不織布を製造し
た。ノズル体は、オリフイスの径130μ、その配列ピツ
チ1mmのものを用いた。
(Example) that by utilizing the apparatus shown in Figure 6, the fiber web having a basis weight 30 g / 0 m 2 at 100% polyester, treated with columnar water streams injection pressure 70 kg / cm 2, flow rate 9.5 / m 2 · sec The perforated nonwoven fabric shown in FIG. 7 was produced at a speed of 70 m / min. The nozzle body used had an orifice diameter of 130 μ and an array pitch of 1 mm.

支持体は次の仕様のものを用いた。The support used had the following specifications.

材質:ステンレス板 突起部面積率(突起部全面積/支持体有効全表面積)
:17.5% 開口部面積率(全開口部面積/支持体の有効全表面積)
:3.67% 第8図中の寸法:L:5mm,L:2.86mm , L:5.45mm L:10mm,L:3.04mm,L:0. 99mm L:1.58mm (比較例1) 第6図に示すシリンダー支持体に替えて平織10メツシユ
のエンドレスベルトを用いる外は、実施例と同条件で処
理することにより第9図に示す開孔不織布を製造した。
Material: Stainless plate Area ratio of protrusions (total area of protrusions / total effective surface area of support)
: 17.5% Opening area ratio (total opening area / effective total surface area of support)
: 3.67% Dimensions in Fig. 8: L 1 : 5mm, L 2 : 2.86mm, L 3 : 5.45mm L 4 : 10mm, L 5 : 3.04mm, L 6 : 0.99mm L 7 : 1.58mm (Comparison Example 1) An open-hole nonwoven fabric shown in FIG. 9 was produced by treating under the same conditions as in Example except that an endless belt of plain weave 10 mesh was used in place of the cylinder support shown in FIG.

(比較例2) 第6図に示すシリンダー支持体に替えて、朱子織76メツ
シユのエンドレスベルトの外周に、繊維ウエブが移動し
うるペースをおいて、ニツケルエレクトロフオーミング
法で製作された直径380mmのシームレスにして、その周
面に2mmφの透孔が規則的に点在するシリンダーを重
ね、しかも前記メツシユの内面から圧力15kg/cmで流
量30/m・secのカーテン流を噴射し、10m/minの
速度で処理した外は、実施例と同条件で処理することに
より第10図に示す開孔不織布をえた。
(Comparative Example 2) Instead of the cylinder support shown in FIG. 6, a diameter of 380 mm produced by the nickel electroforming method with a pace at which the fiber web can move around the outer circumference of the endless belt of satin weave 76 mesh. Seamlessly, and cylinders with 2 mmφ through holes regularly scattered on the peripheral surface are overlapped, and a curtain flow with a flow rate of 30 / m 2 · sec is injected from the inner surface of the mesh at a pressure of 15 kg / cm 2 . The open nonwoven fabric shown in FIG. 10 was obtained by treating under the same conditions as in Example except that the treatment was performed at a speed of 10 m / min.

前記実施例、比較例1,2による開孔不織布の性能は、次
のとおりであつた。
The performances of the open-pore nonwoven fabrics according to the above-mentioned Examples and Comparative Examples 1 and 2 were as follows.

(発明の効果) 本発明の開孔不織布の製造用支持体およびこれを用いる
開孔不織布の製造方法によれば、支持体上の開口部から
強制的に吸引排水しながら、該支持体上の各突起により
繊維を該各突起間の平面に移動分配して明瞭な開孔を形
成することができるとともに、該各突起間の不透水性で
水流の衝突反発を起こさせる平面でここに位置する繊維
を交絡するから、低い水流噴射圧でしかも少ない水量で
その交絡効果を高め、よつて地合が優れ所要の引つ張り
強度を有し、吸収性物品の表面材として好適な開孔不織
布をうることができる。
(Effect of the Invention) According to the support for producing an apertured non-woven fabric of the present invention and the method for producing an apertured non-woven fabric using the same, the substrate on the substrate is forcibly sucked and discharged from the opening on the substrate. Fibers can be moved and distributed by the protrusions to a plane between the protrusions to form clear apertures, and the protrusions are located on a plane that causes impulsive water flow collision repulsion between the protrusions. Since the fibers are entangled, the entanglement effect is enhanced with a low water jet pressure and a small amount of water, and thus the formation is excellent and the required tensile strength is obtained, and an apertured nonwoven fabric suitable as a surface material for absorbent articles is obtained. You can get it.

また所要径のシリンダーを用いその周囲に所要個数のノ
ズル体を配置すると、製造装置全体をコンパクトに構成
することができる。
Further, by using a cylinder having a required diameter and arranging a required number of nozzle bodies around the cylinder, the entire manufacturing apparatus can be made compact.

【図面の簡単な説明】 図面は本発明の実施態様を示すもので、第1図はシリン
ダー支持体の斜視図、第2図はシリンダー支持体の一部
拡大展開斜視図、第3図は第2図3−3線断面図、第4
図は第2図4−4線断面図、第5図は第2図5−5線拡
大断面図、第6図はシリンダー支持体とその内部にサク
シヨン手段を配置した不織布製造装置の概略図、第7図
は開孔不織布の組織を示す部分拡大平面の写真、第8図
は実施例に用いたシリンダー支持体の各部の寸法説明
図、第9図、第10図は比較例1,2の開孔不織布の組織を
示す5倍の部分平面の写真。 11……支持体、12……平滑表面 13……開口部、14……突起 24……ノズル手段、25……サクシヨン手段 α……角度
BRIEF DESCRIPTION OF THE DRAWINGS The drawings show an embodiment of the present invention. FIG. 1 is a perspective view of a cylinder support, FIG. 2 is a partially enlarged exploded perspective view of the cylinder support, and FIG. 2 Fig. 3-3 Sectional view, 4th
Fig. 4 is a sectional view taken along line 4-4 of Fig. 2, Fig. 5 is an enlarged sectional view taken along line 5-5 of Fig. 2, and Fig. 6 is a schematic view of a nonwoven fabric manufacturing apparatus in which a saxion means is arranged inside a cylinder support, FIG. 7 is a photograph of a partially enlarged plan view showing the structure of the open-pore nonwoven fabric, FIG. 8 is a dimensional explanatory view of each part of the cylinder support used in Examples, and FIGS. 9 and 10 are Comparative Examples 1 and 2. A photograph of a 5 × partial plane showing the structure of an open-pore nonwoven fabric. 11 …… Support, 12 …… Smooth surface 13 …… Aperture, 14 …… Protrusion 24 …… Nozzle means, 25 …… Suction means α …… Angle

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特公 昭39−9199(JP,B1) 特公 昭54−38237(JP,B2) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Japanese Patent Publication No. 39-9199 (JP, B1) Japanese Patent Publication No. 54-38237 (JP, B2)

Claims (15)

【特許請求の範囲】[Claims] 【請求項1】連続する平滑表面上に点在する多数の突起
を有し、繊維ウエブの下面に配置する開孔不織布の製造
用支持体において、前記突起は、該突起の頂点の面積が
小さくて該突起の基底部に向かって漸次広がっている形
状であって前記繊維ウエブの移動方向側である該突起の
前側とは逆方向側である該突起の後側面に開口部を有す
ることを特徴とする前記支持体。
1. A support for producing an apertured non-woven fabric, which has a large number of projections scattered on a continuous smooth surface and is arranged on the lower surface of a fibrous web, wherein the projections have a small apex area. The shape is such that it gradually widens toward the base of the projection, and has an opening on the rear side surface of the projection that is opposite to the front side of the projection that is the moving direction side of the fibrous web. Said support.
【請求項2】前記突起は、その経が0.3〜15mmφで、か
つ、その高さが0.4〜10mmである特許請求の範囲第1項
記載の支持体。
2. The support according to claim 1, wherein the projection has a diameter of 0.3 to 15 mmφ and a height of 0.4 to 10 mm.
【請求項3】前記突起は、その配置ピツチが1〜15mmで
ある特許請求の範囲第1項記載の支持体。
3. The support according to claim 1, wherein the protrusion has a pitch of 1 to 15 mm.
【請求項4】前記開口部は、前記支持体の平面に対して
なす開口面角度が75〜105゜である特許請求の範囲第1
項記載の支持体。
4. The first opening according to claim 1, wherein the opening has an opening surface angle of 75 to 105 ° with respect to the plane of the support.
The support according to item.
【請求項5】前記開口部は、前記支持体の平面に対して
なす開口面角度が実質的に直角である特許請求の範囲第
1項記載の支持体。
5. The support according to claim 1, wherein the opening has an opening surface angle substantially perpendicular to the plane of the support.
【請求項6】前記開口部は、その総面積が前記支持体の
面積の2〜30%である特許請求の範囲第1項記載の支持
体。
6. The support according to claim 1, wherein the opening has a total area of 2 to 30% of the area of the support.
【請求項7】前記支持体は、シリンダーである特許請求
の範囲第1項記載の支持体。
7. The support according to claim 1, wherein the support is a cylinder.
【請求項8】連続する平滑表面上に点在する多数の突起
を有する支持体に繊維ウエブを置いて、前記繊維ウエブ
に高速水流を噴射することにより前記突起上の繊維を分
配させて開孔を賦与すると同時に前記突起間の平面上で
繊維を交絡させる開孔不織布の製造方法において、前記
支持体として、前記突起の頂点の面積が小さくて前記突
起の基底部に向かって漸次広がっている形状であって前
記繊維ウエブの移動方向側である前記突起の前側とは逆
方向側である前記突起の後側面に開口部を有する支持体
を用い、しかも前記支持体の下面に配置した吸引手段に
より前記開口部からの、前記繊維交絡処理に作用し終わ
った水流を吸引排出することを特徴とする開孔不織布の
製造方法。
8. A fiber web is placed on a support having a large number of projections scattered on a continuous smooth surface, and a high-speed water stream is jetted onto the fiber web to distribute the fibers on the projections to open holes. In the method for producing an open-pore non-woven fabric in which fibers are entangled on the plane between the protrusions at the same time, as the support, the shape in which the area of the apex of the protrusions is small and gradually widens toward the base of the protrusions And using a support body having an opening on the rear side surface of the projection that is the side opposite to the front side of the projection that is the moving direction side of the fiber web, and by means of suction means arranged on the lower surface of the support body. A method for producing an apertured nonwoven fabric, which comprises sucking and discharging a water flow from the opening, which has finished the fiber entanglement treatment.
【請求項9】前記支持体として一個のシリンダーを用
い、かつ、該シリンダーの周囲方向に所定の間隔で複数
個のノズル体を配置し、これにより前記開口賦与および
前記繊維交絡の全ての本格的処理をなす特許請求の範囲
第8項記載の開孔不織布の製造方法。
9. A single cylinder is used as the support, and a plurality of nozzle bodies are arranged at predetermined intervals in the circumferential direction of the cylinder, whereby all of the openings and the fiber entanglement are fully formed. The method for producing an open-pore nonwoven fabric according to claim 8, wherein the treatment is performed.
【請求項10】前記突起はドーム状の形状である特許請
求の範囲第8項記載の開孔不織布の製造方法。
10. The method for producing a perforated nonwoven fabric according to claim 8, wherein the protrusion has a dome shape.
【請求項11】前記突起は、その直径が0.3〜15mmφ
で、かつ、その高さが0.4〜10mmである特許請求の範囲
第8項記載の開孔不織布の製造方法。
11. The projection has a diameter of 0.3 to 15 mmφ.
And the height is 0.4 to 10 mm, and the method for producing an open-pore nonwoven fabric according to claim 8.
【請求項12】前記突起は、その配置ピツチが1〜15mm
である特許請求の範囲第8項記載の開孔不織布の製造方
法。 【請求項12】前記開口部は、前記支持体の平面に対し
てなす開口面角度が75〜105゜である特許請求の範囲第
8項記載の開孔不織布の製造方法。
12. The protrusion has an arrangement pitch of 1 to 15 mm.
The method for producing an open-pore nonwoven fabric according to claim 8, wherein 12. The method for producing a perforated nonwoven fabric according to claim 8, wherein the opening has an opening surface angle of 75 to 105 ° with respect to the plane of the support.
【請求項13】前記開口部は、前記支持体の平面に対し
てなす開口面角度が実質的に直角である特許請求の範囲
第8項記載の開孔不織布の製造方法。
13. The method for producing a perforated nonwoven fabric according to claim 8, wherein the opening has an opening surface angle substantially perpendicular to the plane of the support.
【請求項14】前記開口部は、その総面積が前記支持体
の面積の2〜30%である特許請求の範囲第8項記載の開
孔不織布の製造方法。
14. The method for producing a perforated nonwoven fabric according to claim 8, wherein the opening has a total area of 2 to 30% of the area of the support.
【請求項15】前記支持体はシリンダーである特許請求
の範囲第8項記載の開孔不織布の製造方法。
15. The method for producing a perforated nonwoven fabric according to claim 8, wherein the support is a cylinder.
JP60208336A 1985-09-20 1985-09-20 Support for producing open-pore nonwoven fabric and method for producing open-pore nonwoven fabric using the same Expired - Lifetime JPH0663167B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP60208336A JPH0663167B2 (en) 1985-09-20 1985-09-20 Support for producing open-pore nonwoven fabric and method for producing open-pore nonwoven fabric using the same
EP86307217A EP0215684B1 (en) 1985-09-20 1986-09-19 Apparatus and process for producing apertured non-woven fabric
DE8686307217T DE3685277D1 (en) 1985-09-20 1986-09-19 DEVICE AND METHOD FOR PRODUCING BREAKTHROUGH nonwovens.
ES8602422A ES2002406A6 (en) 1985-09-20 1986-09-19 Apparatus and process for producing apertured non-woven fabric.
KR1019860007891A KR920009286B1 (en) 1985-09-20 1986-09-20 Apparatus and process for producing apertured non-woven fabric
US07/860,679 US5414914A (en) 1985-09-20 1992-03-30 Process for producing apertured nonwoven fabric

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60208336A JPH0663167B2 (en) 1985-09-20 1985-09-20 Support for producing open-pore nonwoven fabric and method for producing open-pore nonwoven fabric using the same

Publications (2)

Publication Number Publication Date
JPS6269868A JPS6269868A (en) 1987-03-31
JPH0663167B2 true JPH0663167B2 (en) 1994-08-17

Family

ID=16554582

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60208336A Expired - Lifetime JPH0663167B2 (en) 1985-09-20 1985-09-20 Support for producing open-pore nonwoven fabric and method for producing open-pore nonwoven fabric using the same

Country Status (1)

Country Link
JP (1) JPH0663167B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2615212B2 (en) * 1989-07-18 1997-05-28 三井石油化学工業株式会社 Perforated meltblown nonwoven fabric and method for producing the same
US8153231B2 (en) * 2007-09-24 2012-04-10 Tredegar Film Products Corporation Thin web

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5438237A (en) * 1977-08-31 1979-03-22 Cho Lsi Gijutsu Kenkyu Kumiai Oven for growing epitaxial silicon

Also Published As

Publication number Publication date
JPS6269868A (en) 1987-03-31

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