JPH0197257A - Production of nonwoven fabric - Google Patents
Production of nonwoven fabricInfo
- Publication number
- JPH0197257A JPH0197257A JP62253057A JP25305787A JPH0197257A JP H0197257 A JPH0197257 A JP H0197257A JP 62253057 A JP62253057 A JP 62253057A JP 25305787 A JP25305787 A JP 25305787A JP H0197257 A JPH0197257 A JP H0197257A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- sheet
- nonwoven fabric
- group
- fibers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000000835 fiber Substances 0.000 claims abstract description 110
- 239000000463 material Substances 0.000 claims description 4
- 229920000297 Rayon Polymers 0.000 abstract description 14
- 239000004744 fabric Substances 0.000 abstract description 11
- 239000002964 rayon Substances 0.000 abstract description 8
- 229920000728 polyester Polymers 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000010030 laminating Methods 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 16
- 239000012779 reinforcing material Substances 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 5
- 239000000470 constituent Substances 0.000 description 5
- 239000002759 woven fabric Substances 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 3
- 229920001169 thermoplastic Polymers 0.000 description 3
- 239000004416 thermosoftening plastic Substances 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- 230000001112 coagulating effect Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000009960 carding Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明は優れた強度及びドレープ性を有する不織布の製
造方法に関し、特に優れた強度°及びドレープ性を有す
る不織布の生産に要するエネルギー（電気、水量等）を
低減化させた製造方法に関するものである。Detailed Description of the Invention (a) Industrial Application Field The present invention relates to a method for producing a nonwoven fabric having excellent strength and drapability, and in particular to a method for producing a nonwoven fabric having excellent strength and drapability. , water amount, etc.).
（ロ）従来の技術
従来より、不織布の製造方法として種々の方法が知られ
ている。不織布は、その製造方法により紙様のもの、織
物様のもの９合成樹脂製フィルム様のもの等各種のもの
が得られる。これらの中でも織物の如き優れた強度及び
ドレープ性を有する不織布が特に望まれており、従来よ
りその開発が盛んである。(b) Prior Art Various methods have been known for producing nonwoven fabrics. Various nonwoven fabrics can be obtained depending on the manufacturing method, such as paper-like fabrics, woven fabric-like fabrics, and synthetic resin film-like fabrics. Among these, nonwoven fabrics having excellent strength and drapability similar to woven fabrics are particularly desired, and their development has been active for some time.
その一つとして、特公昭４７−１８０６９号公報、特公
昭４８−１３７４９号公報に記載された技術は代表的な
ものである。この技術は、連続フィラメント又は短繊維
（ステープルファイバー）をシート状に集積した後、こ
れに高圧柱状流を作用させて、各構成フィラメント又は
各構成繊維相互を緊密に絡合させて不織布を得るという
ものである。このようにして得られた不織布は、結合剤
を含有しないにも拘わらず構成繊維が緊密に絡合されて
いるため優れた強度を有し、且つ結合剤を含有しないた
めドレープ性にも優れているという特性を有している。As one of them, the techniques described in Japanese Patent Publication No. 47-18069 and Japanese Patent Publication No. 48-13749 are representative. This technology involves gathering continuous filaments or short fibers (staple fibers) into a sheet, and then applying a high-pressure columnar flow to the sheet to tightly entangle each constituent filament or fiber to obtain a nonwoven fabric. It is something. The nonwoven fabric obtained in this way has excellent strength because the constituent fibers are tightly intertwined even though it does not contain a binder, and also has excellent drapability because it does not contain a binder. It has the characteristic of being
しかしながら、織物と同等の強度を得るためには、高圧
柱状流を何回も作用させて各構成繊維相互の絡合の緊密
度を向上させなければならない。However, in order to obtain strength equivalent to that of a woven fabric, high-pressure columnar flow must be applied many times to improve the tightness of entanglement between the constituent fibers.
即ち、高圧柱状流を何回も作用させるため、不織布を得
るのに消費するエネルギーが多大になるという欠点を有
している。That is, since the high-pressure columnar flow is applied many times, it has the disadvantage that a large amount of energy is consumed to obtain the nonwoven fabric.
このため、目の荒い織物（例えば麻布）を補強材とし、
その上に連続フィラメント又は短繊維をシート状に集積
させて高圧柱状流を作用させることが試みられている。For this reason, a coarse fabric (for example, linen cloth) is used as a reinforcement material,
Attempts have been made to accumulate continuous filaments or short fibers thereon in the form of a sheet and apply a high-pressure columnar flow.
しかしながら、織物には一般的に紡績系が用いられてお
り、この紡績糸は構成繊維が撚り合わされてなるもので
ある。従って、高圧柱状流を作用させても紡績糸中に（
紡績糸を構成する構成繊維間に）連続フィラメント又は
短繊維が進入しない傾向となる。このため、補強材であ
る織物と連続フィラメント又は短繊維との一体化が十分
でなく、−枚の生地として取り扱うのには適していない
。即ち、補強材と連続フィラメント又は短繊維とが剥が
れやすく、−枚の生地として織物の代用とする、例えば
服地に用いるというには不適当であった。However, a spinning system is generally used for textiles, and this spun yarn is made up of constituent fibers twisted together. Therefore, even if a high-pressure columnar flow is applied, (
Continuous filaments or short fibers (between the constituent fibers constituting the spun yarn) tend not to enter. For this reason, the reinforcing fabric and the continuous filaments or short fibers are not sufficiently integrated, making it unsuitable for handling as a single piece of fabric. That is, the reinforcing material and the continuous filaments or short fibers are likely to separate, making it unsuitable for use as a substitute for textiles, for example, for clothing.
（ハ）発明が解決しようとする問題点
そこで本発明は、補強材として織物に代えである特定の
繊維フリースを採用することにより、不織布の生産に要
するエネルギー消費量を低減化させる方法を提供しよう
とするものであり、且つ補強材としての繊維フリースと
繊維フリース上に集積される短繊維とを強固に一体化す
ると共に強度及びドレープ性に優れた不織布の製造方法
を提供しようとするものである。(c) Problems to be Solved by the Invention Therefore, the present invention provides a method for reducing the energy consumption required for producing nonwoven fabrics by using a specific fiber fleece instead of woven fabric as a reinforcing material. The present invention aims to provide a method for manufacturing a nonwoven fabric that firmly integrates fiber fleece as a reinforcing material and short fibers accumulated on the fiber fleece, and has excellent strength and drapability. .
（ニ）問題点を解決するための手段
即ち本発明は、連続フィラメント群がシート状に集積さ
れ且つ該連続フィラメント群の各交点が自己接着されて
なる繊維フリースと、短繊維群がシート状に集積されて
なる繊維ウェブとを積層した積層物に、高圧柱状流を作
用させて、前記連続フィラメントと前記短繊維及び前記
短繊維相互を緊密に絡合させることを特徴とする不織布
の製造方法に関するものである。(d) A means for solving the problem, that is, the present invention, is a fiber fleece in which a group of continuous filaments is accumulated in a sheet shape and each intersection of the continuous filament group is self-adhered, and a group of short fibers is stacked in a sheet shape. A method for producing a nonwoven fabric, characterized in that a high-pressure columnar flow is applied to a laminate obtained by laminating an accumulated fiber web to tightly entangle the continuous filaments, the short fibers, and each other. It is something.
本発明に用いる繊維フリースは、連続フィラメント群が
シート状に集積されてなり且つ連続フィラメント群の各
交点が自己接着されてなるものである。連続フィラメン
トとしては、ポリエステルフィラメント ポリプロピレ
ンフィラメント、ポリアミドフィラメント等の熱可塑性
繊維の連続フィラメントやビスコースレーヨンフィラメ
ント等の再生繊維の連続フィラメントが用いられる。連
続フィラメント群をシート状に集積するには、多数の紡
糸ノズルから熱可塑性繊維又は再生繊維の連続フィラメ
ント群を吐出させながら、移動するコンベア上に落下さ
せればよい。但し、連続フィラメント群の落下速度より
もコンベアの移動速度は遅くする必要がある。この方法
により、連続フィラメント群が重なり合いながら集積し
、シート状となる。′この連続フィラメント群の各交点
は自己接着されている。自己接着させるためには例えば
以下の方法が採用される。熱可塑性繊維の場合には、連
続フィラメント群をシート状に集積した後、加熱圧着す
ればよい、また、ビスコースレーヨンの如き再生繊維の
場合には未凝固の状態でシート状に集積し、その後凝固
浴に浸漬して各交点を接着してもよいし、凝固させた後
再生する際に水素結合により各交点を接着してもよい。The fiber fleece used in the present invention is made up of continuous filament groups stacked in a sheet shape, and each intersection of the continuous filament groups is self-adhesive. As the continuous filament, continuous filaments of thermoplastic fibers such as polyester filaments, polypropylene filaments, and polyamide filaments, and continuous filaments of recycled fibers such as viscose rayon filaments are used. In order to accumulate the continuous filament group into a sheet, the continuous filament group of thermoplastic fibers or regenerated fibers may be discharged from a large number of spinning nozzles and dropped onto a moving conveyor. However, the moving speed of the conveyor needs to be slower than the falling speed of the continuous filament group. By this method, groups of continuous filaments are accumulated while overlapping each other to form a sheet. 'Each intersection of this group of continuous filaments is self-adhered. For example, the following method is adopted for self-adhesion. In the case of thermoplastic fibers, continuous filaments may be assembled into a sheet and then heat-compressed; in the case of recycled fibers such as viscose rayon, they are assembled into a sheet in an uncoagulated state, and then Each intersection point may be bonded by immersing it in a coagulation bath, or each intersection point may be bonded by hydrogen bonding during regeneration after solidification.
この方法により、連続フィラメント群は接着剤を用いる
ことなく自己接着し固定される。By this method, the continuous filament group is self-adhesive and fixed without using an adhesive.
本発明に用いる繊維ウェブは、レーヨン繊維。The fiber web used in the present invention is rayon fiber.
ポリエステル繊維、ポリオレフィン繊維、ポリアミド繊
維等の短繊維群がシート状に集積されてなるものである
。短繊維群をシート状に集積するには、公知のカード法
やエアレイ法を用いればよい。It is made by stacking short fibers such as polyester fibers, polyolefin fibers, and polyamide fibers into a sheet. In order to accumulate short fibers into a sheet, a known card method or airlay method may be used.
上記の方法で得られた繊維フリースと繊維ウェブとを積
層して積層物を得る。この積層物は一枚の繊維フリース
上に一枚の繊維ウェブを積層して作成してもよいし、−
枚の繊維フリースの両側に二枚の繊維ウヱブを積層して
作成してもよい。更には、−枚の繊維ウェブの両側に二
枚の繊維フリースを積層して作成してもよい、その後、
積層物に高圧柱状流を作用させる。高圧柱状流とは、微
細な直径のノズル孔を通して高圧で非圧縮性の流体を噴
出させて得られるものである。具体的には、ノズル孔径
０．００１〜０．ＩＱ１１程度のノズルを用いて圧力５
〜４００ｋｇ／−で水を噴出させて得られるものである
。このような高圧柱状流を繊維フリースと繊維ウェブと
の積層物に作用させると、主に繊維ウェブ中の短繊維が
運動し、隣接する繊維フリース中の連続フィラメント及
び繊維ウェブ中の他の短繊維と相互に緊密に絡合する。The fiber fleece obtained by the above method and the fiber web are laminated to obtain a laminate. This laminate may be made by laminating a single fibrous web onto a single fibrous fleece, or -
It may also be made by laminating two sheets of fiber web on both sides of a sheet of fiber fleece. Furthermore, it may be made by laminating two fibrous fleeces on both sides of one fibrous web, and then
A high-pressure columnar flow is applied to the laminate. A high-pressure columnar flow is obtained by ejecting a high-pressure, incompressible fluid through a nozzle hole with a fine diameter. Specifically, the nozzle hole diameter is 0.001-0. Pressure 5 using a nozzle with an IQ of about 11
It is obtained by spouting water at ~400 kg/-. When such a high-pressure columnar flow is applied to a laminate of a fiber fleece and a fiber web, mainly the short fibers in the fiber web move, and the continuous filaments in the adjacent fiber fleece and other short fibers in the fiber web move. are closely intertwined with each other.
その結果、結合剤を付与しなくとも積層物は強固に一体
化し強度の大きい不織布を得ることができるのである。As a result, the laminate can be firmly integrated and a high-strength nonwoven fabric can be obtained without adding a binder.
このようにして得られた不織布は、強度及びドレープ性
に優れており、身体の肌に直接着けるパンツ、シャツ、
ドレッシングガウン、バスガウン等の衣料用生地や衛生
材料等の各種用途に用いることができる。The nonwoven fabric obtained in this way has excellent strength and drapability, and can be used in pants, shirts, etc. that can be worn directly on the skin of the body.
It can be used for various purposes such as clothing fabrics such as dressing gowns and bath gowns and sanitary materials.
（ホ）実施例
実施例１
ビスコース溶液を多数の紡糸口金（口径０．１鶴）より
吐出して未凝固の連続フィラメント群を作成すると共に
コンベア上にシート状に集積し、次いで凝固浴に浸漬す
ることにより連続フィラメント群の各交点を自己接着し
て目付１５ ｇ ／ ｒｄの繊維フリースを得た。この
繊維フリースは、経強度１．５ｋｔ／ ５ ａｗｅ巾、
線強度０．５ｋｇ／ ５ ｃｒａ巾である。(e) Examples Example 1 A viscose solution is discharged from a number of spinnerets (diameter 0.1) to create a group of uncoagulated continuous filaments, which are accumulated in a sheet shape on a conveyor, and then transferred to a coagulation bath. Each intersection of the continuous filament group was self-adhered by dipping to obtain a fiber fleece with a basis weight of 15 g/rd. This fiber fleece has a tensile strength of 1.5 kt/5 awe width,
The wire strength is 0.5 kg/5 cra width.
一方、繊維長３８關、繊維径１．５デニールのポリエス
テル繊維をカード法で開繊し、シート状に集積して目付
１５ｇ／ｎｆの繊維ウェブを得た。この繊維ウェブはポ
リエステル繊維間が結合しておらず自己支持性のないも
のである。On the other hand, polyester fibers with a fiber length of 38 and a fiber diameter of 1.5 denier were opened by a card method and assembled into a sheet to obtain a fiber web with a basis weight of 15 g/nf. This fibrous web has no bonds between polyester fibers and is not self-supporting.
前記の繊維フリースと繊維ウェブとを積層した積層物を
平板上に載置し、ノズル径０．０２ＣＩｍのノズルがノ
ズル間隔０．０５ｃｍで並列に配置したノズル群を用い
て圧力５０ｋｇ／ ａａで水を繊維ウェブ側に噴出させ
た。尚、ノズル先端と繊維ウェブとの距離は６．７鶴と
した。The above-described laminate of the fiber fleece and fiber web was placed on a flat plate, and water was applied at a pressure of 50 kg/aa using a nozzle group in which nozzles with a nozzle diameter of 0.02 CIm were arranged in parallel with a nozzle interval of 0.05 cm. was ejected onto the fiber web side. Note that the distance between the nozzle tip and the fiber web was 6.7 mm.
このようにして得られた不織布は連続フィラメントであ
るビスコースレーヨン繊維と短繊維であるポリエステル
繊維とが緊密に絡合すると共に短繊維相互間も緊密に絡
合したものであった。そしてこの不織布は、経強度７．
２ｋｇ１５ａｍ巾、緯強度３．１３ｋｇ１５ｃ＋ａ巾で
あった。従って、補強材である繊維フリース単独の強度
よりも更にその強度が向上している点で特徴的である。The nonwoven fabric thus obtained had viscose rayon fibers as continuous filaments and polyester fibers as short fibers tightly intertwined with each other, and the short fibers were also tightly intertwined with each other. This nonwoven fabric has a mechanical strength of 7.
It was 2 kg 15 am wide and the latitude strength was 3.13 kg 15 c + a width. Therefore, it is unique in that its strength is even higher than that of the reinforcing fiber fleece alone.
比較例１
実施例１で用いた繊維ウェブ単独に実施例１と同様の方
法で高圧柱状流を作用させて不織布を得た。この不織布
は、経強度３ｋｇ１５ｃｍ巾、Ｉｓ強度１．４１ｇ７５
ｃｍ巾であった。従って、実施例１においては補強材と
して繊維フリースを用いているので、十分な強度が得ら
れているのが判る。Comparative Example 1 A nonwoven fabric was obtained by applying a high-pressure columnar flow to the fibrous web used in Example 1 alone in the same manner as in Example 1. This non-woven fabric has a warp strength of 3 kg and a width of 15 cm, and an Is strength of 1.41 g and 75
It was cm wide. Therefore, it can be seen that in Example 1, sufficient strength was obtained because fiber fleece was used as the reinforcing material.
実施例２
、スパンボンド法により、繊維径１．５デニールのポリ
エステル連続フィラメント群をシート状に集積し、これ
を２１０℃に加熱した加熱ロールで圧着して連続フィラ
メント群の各交点を自己接着させた目付１５ｇ／ｒｄの
繊維フリースを得た。この繊維フリースは、経強度３．
１ｋｇ７５ｃｍ巾、緯強度１．８ｋｇ ／ ５ ｃ１１
巾である。Example 2 A polyester continuous filament group with a fiber diameter of 1.5 denier was assembled into a sheet by the spunbond method, and this was compressed with a heated roll heated to 210°C, so that each intersection of the continuous filament group self-adhered. A fiber fleece having a weight of 15 g/rd was obtained. This fiber fleece has a mechanical strength of 3.
1 kg 75 cm width, latitude strength 1.8 kg / 5 c11
It is the width.
一方、繊維長３８１．繊維径１．５デニールのレーヨン
繊維をカード法で開繊し、シート状に集積して目付１５
ｇ／ｎ？の繊維ウェブを得た。この繊維ウェブはレーヨ
ン繊維間が結合しておらず自己支持性のないものである
。On the other hand, the fiber length is 381. Rayon fibers with a fiber diameter of 1.5 denier are opened using a carding method and assembled into a sheet with a fabric weight of 15.
g/n? A fibrous web was obtained. This fibrous web has no bonds between rayon fibers and is not self-supporting.
この繊維フリースと繊維ウェブとを積層して、実施例１
と同様の方法で高圧柱状流を作用させて不織布を得た。Example 1 This fiber fleece and fiber web were laminated together.
A nonwoven fabric was obtained by applying a high-pressure columnar flow in the same manner as above.
この不繊布は経強度７．５ｋｇ／ ５ ｃｍ巾、線強度
４．３ｋｇ１５ｃａｉ巾であった。This nonwoven fabric had a warp strength of 7.5 kg/5 cm width, a linear strength of 4.3 kg/15 cai width.
実施例３
ビスコース溶液を多数の紡糸口金（口径０．１ｆｉ）よ
り吐出して凝固浴内に導入した。そして、凝固浴の下端
に開口しているスリット状出口より連続フィラメント群
を内包した凝固液をシート状流でコンベア上へ流下した
。コンベアの下部にはサクションボックスを配置し、凝
固液を吸引除去した。このようにして得られたシート状
物を酸洗及び水洗処理し再生して、連続レーヨンフィラ
メント群がシート状に集積され且つその交点が水素結合
により自己接着している繊維フリースを得た。Example 3 A viscose solution was discharged from a number of spinnerets (diameter 0.1 fi) and introduced into a coagulation bath. Then, the coagulating liquid containing the continuous filament group was flowed down onto the conveyor in a sheet-like flow from a slit-shaped outlet opened at the lower end of the coagulating bath. A suction box was placed at the bottom of the conveyor, and the coagulated liquid was removed by suction. The sheet material thus obtained was recycled by pickling and water washing to obtain a fiber fleece in which groups of continuous rayon filaments were accumulated in the form of a sheet and their intersections were self-adhered by hydrogen bonding.
この繊維フリースの目付は１５ｇ／ｒｒｒで、経強度１
゜４ｋｇ１５ｃｍ巾、＃ｓ強度０．３ｋｇ／ ５ ａａ
巾であツタ。The basis weight of this fiber fleece is 15g/rrr, and the longitudinal strength is 1
゜4kg width 15cm, #s strength 0.3kg/5 aa
Ivy in width.
一方、繊維長３８ｎ、繊維径１．５デニールのレーヨン
繊維をカード法で開繊し、シート状に集積して目付１５
ｇ／ｎｌの繊維ウェブを得た。この繊維ウェブはレーヨ
ン繊維間が結合しておらず自己支持性のないものである
。On the other hand, rayon fibers with a fiber length of 38 n and a fiber diameter of 1.5 denier were opened using a card method and accumulated into a sheet with a fabric weight of 15.
A fiber web of g/nl was obtained. This fibrous web has no bonds between rayon fibers and is not self-supporting.
前記の繊維フリースと繊維ウェブとを積層した積層物を
平板上に載置し、ノズル径０．０２＋ＩＪのノズルがノ
ズル間隔０．０５ｃｍで並列に配置したノズル群を用い
て圧力５０ｋｇ／ ｃｒｌで水を繊維ウェブ側に噴出さ
せた。尚、ノズル先端と繊維ウェブとの距離は６．７ｆ
ｉとした。The above-described laminate of the fiber fleece and fiber web was placed on a flat plate, and water was applied at a pressure of 50 kg/crl using a nozzle group in which nozzles with a nozzle diameter of 0.02+IJ were arranged in parallel with a nozzle interval of 0.05 cm. was ejected onto the fiber web side. The distance between the nozzle tip and the fiber web is 6.7f.
It was set as i.
このようにして得られた不織布は連続フィラメントであ
るビスコースレーヨン繊維と短繊維であるレーヨン繊維
とが緊密に絡合すると共に短繊維相互間も緊密に絡合し
たものであった。そしてこの不織布は、経強度５．１ｋ
ｇ１５ｃｍ巾、緯強度２．８ｋｇ７５ｃｍ巾であった。The thus obtained nonwoven fabric had viscose rayon fibers, which are continuous filaments, and rayon fibers, which are short fibers, were tightly entangled, and the short fibers were also closely entangled with each other. And this nonwoven fabric has a warp strength of 5.1k.
It was 15cm wide in g, 2.8kg in latitudinal strength and 75cm wide.
従って、この場合においても繊維フリース単独の強度よ
りも更にその強度が向上している。Therefore, even in this case, the strength is further improved than that of the fiber fleece alone.
（へ）作用及び発明の効果
一般的に高圧柱状流を噴出させるには、多大なエネルギ
ー（電気及び水）を必要とするものである。例えば短繊
維群をシート状に集積してなる繊維ウェブのみを用いて
、織物と同程度の強度を得るためには何回も高圧柱状流
を作用させる必要があり、エネルギー消費量は非常に多
大となる。また、高圧柱状流の作用回数を減らすと十分
な強度を持つ不織布が得られない（比較例１参照）。し
かるに、本発明においては連続フィラメント群が自己接
着してなる繊維フリース（この繊維フリースは連続フィ
ラメントよりなるため強度が大きく補強材として適して
いる。）を補強材として用いているので、高圧柱状流を
作用させる回数を低減化することができる。従って、不
織布を得るのに必要なエネルギーを低減化しうるという
効果を奏する。(F) Function and Effects of the Invention In general, a large amount of energy (electricity and water) is required to eject a high-pressure columnar flow. For example, in order to obtain the same strength as a woven fabric using only a fiber web made by accumulating short fibers in a sheet shape, it is necessary to apply high-pressure columnar flow many times, and the energy consumption is extremely large. becomes. Furthermore, if the number of times the high-pressure columnar flow is applied is reduced, a nonwoven fabric with sufficient strength cannot be obtained (see Comparative Example 1). However, in the present invention, a fiber fleece formed by self-adhering continuous filaments (this fiber fleece is made of continuous filaments and has high strength and is suitable as a reinforcing material) is used as a reinforcing material. The number of times the process is applied can be reduced. Therefore, it is possible to reduce the energy required to obtain a nonwoven fabric.
また、本発明で用いる補強材である繊維フリースは各交
点で自己接着しているが交点以外の部分では比較的自由
度が大きく動きやすい。従って、繊維ウェブと積層して
高圧柱状流を作用させると、繊維ウェブ中の短繊維が連
続フィラメント間に進入しると共に絡合し、繊維ウェブ
と繊維フリースとの一体化が強固となる。更に、繊維フ
リース中の自己接着の部分以外でも絡合部が生じるため
、繊維フリース自体の強度も向上する。依って、強固に
一体化し且つ強度の大きい不織布が得られるという効果
をも奏する。Furthermore, although the fiber fleece that is the reinforcing material used in the present invention is self-adhesive at each intersection, it has a relatively large degree of freedom and is easy to move in areas other than the intersections. Therefore, when laminated with a fibrous web and subjected to a high-pressure columnar flow, the short fibers in the fibrous web enter between the continuous filaments and become entangled, thereby strengthening the integration of the fibrous web and the fibrous fleece. Furthermore, since entangled portions occur in the fiber fleece other than the self-adhesive portions, the strength of the fiber fleece itself is improved. Therefore, it is also possible to obtain a nonwoven fabric that is firmly integrated and has high strength.
以上説明したように、本発明の方法を用いればドレープ
性及び強度の優れた不織布を省エネルギー化して製造す
ることができるので、このような不織布を安価に供給す
ることができ、産業上極めて有益なものである。As explained above, by using the method of the present invention, nonwoven fabrics with excellent drapability and strength can be manufactured with energy savings, so such nonwoven fabrics can be supplied at low cost, and are extremely useful industrially. It is something.
Claims (1)
フィラメント群の各交点が自己接着されてなる繊維フリ
ースと、短繊維群がシート状に集積されてなる繊維ウェ
ブとを積層した積層物に、高圧柱状流を作用させて、前
記連続フィラメントと前記短繊維及び前記短繊維相互を
緊密に絡合させることを特徴とする不織布の製造方法。A laminate consisting of a fiber fleece in which a group of continuous filaments is accumulated in a sheet shape and each intersection point of the continuous filament group is self-adhered, and a fiber web in which a group of short fibers is accumulated in a sheet shape is laminated with a high-pressure columnar material. A method for producing a nonwoven fabric, characterized in that the continuous filaments, the short fibers, and the short fibers are tightly entangled with each other by applying a flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62253057A JPH0197257A (en) | 1987-10-07 | 1987-10-07 | Production of nonwoven fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62253057A JPH0197257A (en) | 1987-10-07 | 1987-10-07 | Production of nonwoven fabric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0197257A true JPH0197257A (en) | 1989-04-14 |
Family
ID=17245884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62253057A Pending JPH0197257A (en) | 1987-10-07 | 1987-10-07 | Production of nonwoven fabric |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0197257A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01213451A (en) * | 1988-02-18 | 1989-08-28 | Asahi Chem Ind Co Ltd | Flannelly nonwoven fabric and production thereof |
| WO1990007024A1 (en) * | 1988-12-15 | 1990-06-28 | Asahi Kasei Kogyo Kabushiki Kaisha | Composite sheet for fiber-reinforced material |
| JPH0314121U (en) * | 1989-06-26 | 1991-02-13 | ||
| JPH0456008U (en) * | 1990-09-19 | 1992-05-13 | ||
| JPH0649762A (en) * | 1992-06-03 | 1994-02-22 | Asahi Chem Ind Co Ltd | Composite nonwoven fabric |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57112454A (en) * | 1980-12-29 | 1982-07-13 | Asahi Chemical Ind | Nonwoven fabric |
| JPS61187180A (en) * | 1985-02-14 | 1986-08-20 | Uni Charm Corp | Liner for floppy disc jacket and its manufacture |
| JPS63211354A (en) * | 1987-02-26 | 1988-09-02 | 東レ株式会社 | Composite nonwoven fabric and its production |
-
1987
- 1987-10-07 JP JP62253057A patent/JPH0197257A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57112454A (en) * | 1980-12-29 | 1982-07-13 | Asahi Chemical Ind | Nonwoven fabric |
| JPS61187180A (en) * | 1985-02-14 | 1986-08-20 | Uni Charm Corp | Liner for floppy disc jacket and its manufacture |
| JPS63211354A (en) * | 1987-02-26 | 1988-09-02 | 東レ株式会社 | Composite nonwoven fabric and its production |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01213451A (en) * | 1988-02-18 | 1989-08-28 | Asahi Chem Ind Co Ltd | Flannelly nonwoven fabric and production thereof |
| WO1990007024A1 (en) * | 1988-12-15 | 1990-06-28 | Asahi Kasei Kogyo Kabushiki Kaisha | Composite sheet for fiber-reinforced material |
| EP0409993B1 (en) * | 1988-12-15 | 1995-08-23 | Asahi Kasei Kogyo Kabushiki Kaisha | Composite sheet for fiber-reinforced material |
| JPH0314121U (en) * | 1989-06-26 | 1991-02-13 | ||
| JPH0456008U (en) * | 1990-09-19 | 1992-05-13 | ||
| JPH0649762A (en) * | 1992-06-03 | 1994-02-22 | Asahi Chem Ind Co Ltd | Composite nonwoven fabric |
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