JPH0369613A - Thermally weldable conjugate fiber - Google Patents
Thermally weldable conjugate fiberInfo
- Publication number
- JPH0369613A JPH0369613A JP1205510A JP20551089A JPH0369613A JP H0369613 A JPH0369613 A JP H0369613A JP 1205510 A JP1205510 A JP 1205510A JP 20551089 A JP20551089 A JP 20551089A JP H0369613 A JPH0369613 A JP H0369613A
- Authority
- JP
- Japan
- Prior art keywords
- component
- fiber
- polymer
- fibers
- composite
- 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
- 239000000835 fiber Substances 0.000 title claims abstract description 113
- 229920000642 polymer Polymers 0.000 claims abstract description 63
- 238000002844 melting Methods 0.000 claims abstract description 14
- 230000008018 melting Effects 0.000 claims abstract description 14
- 238000009987 spinning Methods 0.000 claims abstract description 14
- 230000003068 static effect Effects 0.000 claims abstract description 13
- 229920000098 polyolefin Polymers 0.000 claims abstract description 10
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 7
- 239000002131 composite material Substances 0.000 claims description 50
- 239000004745 nonwoven fabric Substances 0.000 claims description 34
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000009826 distribution Methods 0.000 abstract description 22
- 244000035744 Hura crepitans Species 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 abstract 1
- 239000000306 component Substances 0.000 description 73
- -1 polyethylene Polymers 0.000 description 32
- 239000010410 layer Substances 0.000 description 15
- 239000000853 adhesive Substances 0.000 description 13
- 229920000139 polyethylene terephthalate Polymers 0.000 description 13
- 239000005020 polyethylene terephthalate Substances 0.000 description 13
- 229920000742 Cotton Polymers 0.000 description 11
- 230000001070 adhesive effect Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 7
- 239000004698 Polyethylene Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 238000002156 mixing Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 229920000573 polyethylene Polymers 0.000 description 7
- 229920001903 high density polyethylene Polymers 0.000 description 6
- 239000004700 high-density polyethylene Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 229920000728 polyester Polymers 0.000 description 6
- 239000004952 Polyamide Substances 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 5
- 229920002647 polyamide Polymers 0.000 description 5
- 229920001155 polypropylene Polymers 0.000 description 5
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229920002292 Nylon 6 Polymers 0.000 description 3
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 3
- 239000008358 core component Substances 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 229920002302 Nylon 6,6 Polymers 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- SHSGDXCJYVZFTP-UHFFFAOYSA-N 4-ethoxybenzoic acid Chemical compound CCOC1=CC=C(C(O)=O)C=C1 SHSGDXCJYVZFTP-UHFFFAOYSA-N 0.000 description 1
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 1
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 1
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical group O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 description 1
- 206010024229 Leprosy Diseases 0.000 description 1
- 229920001410 Microfiber Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920000299 Nylon 12 Polymers 0.000 description 1
- 101100070542 Podospora anserina het-s gene Proteins 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- BYVDYWJEGMXQHS-UHFFFAOYSA-N S(=O)(=O)(O)C1=C(C(=O)O)C=CC=C1C(=O)O.[Na].[Na].[Na].[Na].[Na] Chemical compound S(=O)(=O)(O)C1=C(C(=O)O)C=CC=C1C(=O)O.[Na].[Na].[Na].[Na].[Na] BYVDYWJEGMXQHS-UHFFFAOYSA-N 0.000 description 1
- 240000001949 Taraxacum officinale Species 0.000 description 1
- 235000005187 Taraxacum officinale ssp. officinale Nutrition 0.000 description 1
- YIMQCDZDWXUDCA-UHFFFAOYSA-N [4-(hydroxymethyl)cyclohexyl]methanol Chemical compound OCC1CCC(CO)CC1 YIMQCDZDWXUDCA-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000006081 fluorescent whitening agent Substances 0.000 description 1
- 238000010191 image analysis Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000003658 microfiber Substances 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- RXOHFPCZGPKIRD-UHFFFAOYSA-N naphthalene-2,6-dicarboxylic acid Chemical compound C1=C(C(O)=O)C=CC2=CC(C(=O)O)=CC=C21 RXOHFPCZGPKIRD-UHFFFAOYSA-N 0.000 description 1
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920006149 polyester-amide block copolymer Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、ポリオレフィンと融点１５０℃以上の熱可塑
性ポリマーの２棟のポリマーの複合形状が繊維の長さ方
向には実質的に同一形状でありながら、単繊維間でラン
ダムに異なり、該単繊維は一方の成分が層状分割層を形
成している複合形状のものと、一方の成分が一独立島状
成分を形成している複合形状のものと、更に二成分が偏
在化して貼り合せ構造を形成した複合形状のものが混在
化した状態である、天然繊維に似た自然な斑と柔らかい
ソフトな風合を有する新規な熱融着性複合繊維ならびに
その製造方法に関するものである０（従来技術）
繊維間熱融着により不織布等を製造するための熱接着性
繊維は知られている。例えばポリエチレンを接着成分と
するポリエチレン−ポリプロピレン複合繊維、共重合ナ
イロンを接着成分とするポリプロピレンとの複合繊維、
あるいはエチレン−ビニルアルコール共重合体を接着成
分とするポリエチレンテレフタレートとの複合繊維等が
める０４１：最近ベビーかむつや釦むつライナー、生理
用品などの衛生材料分野や外食産業向けのカウンターク
ロス、台所用品の流し台の水切り袋などの非衛生材料分
野や、シップ薬の基布や固定用シート、病院用手術衣、
マスク等のメディカル分野などに、不織布が広く使用さ
れてきている。Detailed Description of the Invention (Industrial Field of Application) The present invention is characterized in that the composite shape of two polymers, a polyolefin and a thermoplastic polymer with a melting point of 150° C. or more, is substantially the same in the longitudinal direction of the fiber. However, the single fibers differ randomly, and the single fibers have a composite shape in which one component forms a layered divided layer, and a composite shape in which one component forms an independent island component. A novel thermal adhesive that has natural spots and a soft texture similar to natural fibers, which is a mixture of two components and a compound shape that forms a bonded structure by unevenly distributing two components. BACKGROUND OF THE INVENTION 0. Related to Composite Fibers and Methods for Producing the Same (Prior Art) Heat-adhesive fibers for producing nonwoven fabrics and the like by interfiber heat fusion are known. For example, polyethylene-polypropylene composite fibers containing polyethylene as an adhesive component, composite fibers with polypropylene containing copolymerized nylon as an adhesive component,
Or composite fibers with polyethylene terephthalate containing ethylene-vinyl alcohol copolymer as an adhesive component 041: Recently used in the field of sanitary materials such as baby diapers, button diaper liners, sanitary products, counter cloths for the restaurant industry, and sinks for kitchen utensils. In the field of non-hygienic materials such as draining bags, base fabrics and fixing sheets for medical supplies, surgical gowns for hospitals,
Nonwoven fabrics have been widely used in the medical field, such as masks.
それと同時に、本来の取りあつかい性などの機能性ども
に、柔らかさや感触などの風合に対する要求も大きくな
ってきた。特に最近では、不織布分ｔｙテのポリエチレ
ンテレフタレートを代表とする合成繊維の役割が大きく
なり、広く使用されるようになってきた。しかしながら
、生産効率及び種々の消費性能に対する耐久性等の点で
はある程度満足できるレベルにきているが、風合という
点では筐だ筐だ不十分で、使用している過程でのある程
度の柔らかい、人間の肌になじみやすい風合が要望され
るようになってきた。熱融着性繊維による不織布につい
ても、機能性のみならず、柔らかさ等の風合良好なもの
が強く望筐れるようになってきたが十分なものは、ない
のが現状であった。At the same time, in addition to functionality such as ease of handling, demands for texture such as softness and texture have also increased. Particularly in recent years, synthetic fibers such as nonwoven polyethylene terephthalate have become increasingly important and widely used. However, although the production efficiency and durability for various consumption performances are at a somewhat satisfactory level, the texture of the casing is insufficient, and the casing has a certain degree of softness during use. There is a growing demand for a texture that blends easily with human skin. Regarding nonwoven fabrics made of heat-fusible fibers, there has been a strong desire for nonwoven fabrics that are not only functional but also have good texture such as softness, but at present, there is no satisfactory fabric.
（本発明が解決しようとする問題点）
従って不発明は、従来の熱融着性繊維による不織布に対
して、天然繊維に似たソフト感を有する風合と単繊維間
にランダムな自然な斑を付与させ良好な風合の熱融着性
繊維による不織布を得ることを目的として鋭意検討した
結果、本発明に到達したものである。すなわち本発明は
、上記繊維を得るためにはいかなる物を用い、いかなる
構成、条件としたらぷいかという点を究明したものであ
る０
（ｌ１題を解決するための手段）
本発明はポリオレフィン（Ａ成分）と、融点が１５０℃
以上の結晶性熱可塑性ポリマー（Ｂ成分）の２種の重合
体成分からなり、Ａ成分とＢ成分の複合形状が繊維の長
さ方向には実質的に同一形状でるりながら単繊維間でラ
ンダムに異なり、一方の成分が層状分割層を形成してい
る複合形状のものと、一方の成分が独立島状成分を形成
している複合形状のものと、更に二成分が偏在化した一
種の貼り合せ構造に似た複合形状のものの繊維が混在化
した状態でランダムに形成され、しかもＡ成分とＢｍ分
の界面での接触長が一定条件を満たすことを特徴とする
熱融着性複合繊維である０本発明で言うＡ成分ポリマー
のポリオレフィンとしては、ポリエチレン、ポリプロピ
レン、ポリ−４−メチルペ／テン−１及びこれらを主成
分とするポリオレフィン又は、各種共重合変性ポリエチ
レン及び各種共重合変性ポリプロピレン等が挙げられ、
例えば、エチレン−酢酸ビニル共重合体なども本発明の
目的繊維を得るためのポリマーとしては好適なポリマー
の一つである。Ａ成分であるポリオレフィンが熱融着性
成分として働く役割を担っていることから、目的とする
接着温度及び接着強力等に合わせて、ポリオレフィンの
種類を融点、流れ性等考慮して選択する必要がある。例
えば、ポリエチレンを用いる場合でも、目的に応じて低
密度ポリエチレン（ＬＤＰＥ） 、高密度ポリエチレン
（ＨＤＰＥ）、又はエチレントノテン−１、オクテン−
１等のα−オレフィン共重合の線状低密度ポリエステル
（ＬＬＤＰＥ）を適宜、選択する必要がある。(Problems to be Solved by the Invention) Therefore, the invention is to provide a non-woven fabric made of conventional heat-fusible fibers with a texture that has a soft feel similar to that of natural fibers and with random natural irregularities between single fibers. The present invention was developed as a result of extensive research aimed at obtaining a nonwoven fabric made of heat-fusible fibers with a good texture. In other words, the present invention has investigated what kind of material should be used and what kind of composition and conditions should be used to obtain the above-mentioned fibers. component) and has a melting point of 150℃
Consisting of two types of polymer components, the above-mentioned crystalline thermoplastic polymer (component B), the composite shape of component A and component B is substantially the same in the length direction of the fiber, but is random between single fibers. There are two types of adhesives: one with a composite shape in which one component forms a layered divided layer, one with a composite shape in which one component forms an independent island component, and a type of adhesive in which the two components are unevenly distributed. A heat-fusible composite fiber that is randomly formed in a state where fibers with a composite shape similar to a laminated structure are mixed, and that the contact length at the interface between the A component and the Bm component satisfies a certain condition. The polyolefin of the A component polymer referred to in the present invention includes polyethylene, polypropylene, poly-4-methylpentene-1, polyolefins containing these as main components, various copolymerized modified polyethylenes, various copolymerized modified polypropylenes, etc. mentioned,
For example, ethylene-vinyl acetate copolymer is also a suitable polymer for obtaining the target fiber of the present invention. Since polyolefin, which is component A, plays a role as a heat-fusible component, it is necessary to select the type of polyolefin in accordance with the desired adhesive temperature and adhesive strength, taking into account melting point, flowability, etc. be. For example, even when polyethylene is used, depending on the purpose, low density polyethylene (LDPE), high density polyethylene (HDPE), ethylenetonotene-1, octene-1, etc.
It is necessary to appropriately select a linear low density polyester (LLDPE) copolymerized with α-olefin such as No. 1.
本発明で言う融点１５０℃以上のＢポリマーとしては、
融点１５０℃以上の繊維形成性良好なポリマーであれば
どれでもよい。好筐しくは、ポリエチレンテレフタレー
ト又はポリブチレンテレフタレートを主成分とするポリ
エステルか、ナイロン６又はナイロン６６を主成分とす
るポリアミドであることが望１１．い。In the present invention, the B polymer having a melting point of 150°C or higher includes:
Any polymer having a melting point of 150° C. or higher and good fiber-forming properties may be used. Preferably, the casing is a polyester containing polyethylene terephthalate or polybutylene terephthalate as a main component, or a polyamide containing nylon 6 or nylon 66 as a main component.11. stomach.
ポリエステルとしては、例えばテレフタール酸、イソフ
タール酸、ナフタリン２，６−ジカルボン酸、フタール
酸、α、β−（４−カルボキシフェノキシ）エタン、４
．４−ジカルボキシジフェニール、５ナトリウムスルホ
イソフタル酸などの芳香族ジカルボン酸もしくはアジピ
ン酸、セバシン酸などの脂肪族ジカルボン酸又はこれら
のエステル類と、エチレングリコール、ジエチレングリ
コール、１゜４ブタンジオール、ネオペンチルグリコー
ル、シクロヘキサン１．４−ジメタノール、ポリエチレ
ングリコール、ポリテトラメチレングリコールなどのジ
オール化合物とから合成される繊維形成性ポリエステル
であり、構成単位の８０モル多以上が、特には９０モル
優以上がポリエチレンテレフタレート単位又はポリブチ
レンテレフタレート単位であるポリエステルが好ましい
。又、ポリエステル中には、少量の添加剤、螢光増白剤
、安定剤あるいは紫外線吸収剤などを含んでいても良い
。Examples of the polyester include terephthalic acid, isophthalic acid, naphthalene 2,6-dicarboxylic acid, phthalic acid, α, β-(4-carboxyphenoxy)ethane,
．． Aromatic dicarboxylic acids such as 4-dicarboxydiphenyl and pentasodium sulfoisophthalic acid, or aliphatic dicarboxylic acids such as adipic acid and sebacic acid, or their esters, together with ethylene glycol, diethylene glycol, 1°4-butanediol, and neopentyl. It is a fiber-forming polyester synthesized from diol compounds such as glycol, cyclohexane 1,4-dimethanol, polyethylene glycol, and polytetramethylene glycol, and more than 80 moles or more, especially more than 90 moles, of the constituent units are polyethylene. Polyesters having terephthalate units or polybutylene terephthalate units are preferred. The polyester may also contain small amounts of additives, fluorescent whitening agents, stabilizers, ultraviolet absorbers, and the like.
筐たポリアミドとしては、ナイロン６、ナイロン６６、
ナイロン１２を主成分とするポリアミドであり、少量の
第３７５３！分を含むポリアミドでもよい。これらに少
量の添加剤、螢光増白剤、安定剤等を含んでいても良い
。The polyamide used for the casing is nylon 6, nylon 66,
It is a polyamide whose main component is nylon 12, with a small amount of No. 3753! It may also be made of polyamide containing These may contain small amounts of additives, fluorescent brighteners, stabilizers, etc.
筐た、言う筐でもないが、接着繊維の形態安定性を重視
する場合には、Ｂ成分ポリマーは接着処理温度より融点
が高い熱可塑性ポリマーを使用する必要があるのは当然
の事である。Although it is not a case, it is a matter of course that when emphasis is placed on the morphological stability of the adhesive fiber, it is necessary to use a thermoplastic polymer having a melting point higher than the adhesive processing temperature as the B component polymer.
次に本発明の繊維の特徴を、実際の写真を示しながら説
明する。第１図に本発明繊維の断面構造を示す写真の一
例を示す。第２図は典型的な断面形状の代表的なものの
モデル図を一例として示した０
第１図に示したものは、Ａ成分として高密度ポリエチレ
ン、Ｂ成分としてポリエチレンテレフタレートを用い、
重量比５０対５０で紡糸したものである。Ａ成分とＢ成
分の複合形状が単繊維間でランダムに異なり、Ａ成分が
層状分割層を形成している場合もあれば、独立の島状成
分を形成している場合があり、筐た第２図（イ）の如＜
％Ａ酸成分Ｂ成分が極端に偏在化して貼り合せ構造に似
た複合形状を形成している場合もあり、それらが混在化
した状態でマルチフィラメントを形成していることがわ
かる。この各種の複合形状が混在化しているために、あ
るものはＡ成分とＢ成分の歪差により収縮歪差を生じ、
例えば第２図（イ）の場合潜在捲縮性を有し、最終繊維
製品にした場合他の単繊維と位相の異なる集団化しない
コイルクリンプが発現し嵩高性をもたらし、第２図（ロ
）の場合は、Ａ成分とＢＩｌｉｉ分との界面で一部剥離
が生じ、最終繊維製品で単繊維表面層よりランダムにフ
ィブリル状極細繊維が枝状に発生し、接触した時に柔ら
かい感触風合を与えるポイントとなる。筐た第２図（ハ
）の形状を形成している繊維の場合は一方の成分がやや
大きい島状独立層を数個有しているために、完全芯鞘繊
維には得ることのできない繊維としての自然な柔らかさ
をもたらす。このように、単繊維間の複合形状がランダ
ムに異なり、しかも、その形状が第２図（イ）（ロ）（
ハ）のモデル形状で代表されるもので混在化しているこ
とが、天然繊維に似た自然な斑と風合、特に、嵩高さと
触った時の柔らかさと繊維集合体としての全体の柔らか
さを初めて発現させうろことが可能となった。このよう
な複合形状を有する繊維を得る方法については、後で詳
細に説明するが、上記説明した複合形状を有する繊維集
合体をつくることにより、初めて従来にない自然な天然
繊維ライクな感触を発現させることが可能となった。Next, the characteristics of the fiber of the present invention will be explained with reference to actual photographs. FIG. 1 shows an example of a photograph showing the cross-sectional structure of the fiber of the present invention. Figure 2 shows a model diagram of a typical cross-sectional shape as an example. The model shown in Figure 1 uses high-density polyethylene as the A component and polyethylene terephthalate as the B component.
The fibers were spun at a weight ratio of 50:50. The composite shape of the A component and the B component varies randomly between single fibers, and the A component may form a layered dividing layer, or an independent island component, and the As shown in Figure 2 (a)
% A acid component B component is extremely unevenly distributed in some cases to form a composite shape resembling a bonded structure, and it can be seen that a multifilament is formed in a mixed state. Because these various composite shapes are mixed, some of them cause shrinkage strain difference due to the strain difference between A component and B component,
For example, in the case of Fig. 2 (a), it has latent crimpability, and when it is made into a final fiber product, coil crimps that do not cluster and have a phase different from other single fibers appear, resulting in bulkiness, and as shown in Fig. 2 (b). In the case of , some peeling occurs at the interface between the A component and the BIlii component, and in the final fiber product, fibrillar microfibers are randomly generated in the form of branches from the single fiber surface layer, giving a soft texture when they come into contact. This is the point. In the case of fibers with the shape shown in Figure 2 (c), one of the components has several rather large island-like independent layers, so the fibers cannot be obtained as complete core-sheath fibers. Brings natural softness. In this way, the composite shapes between single fibers vary randomly, and the shapes are
The fact that they are mixed, as represented by the model shape in c), has a natural mottling and texture similar to natural fibers, especially bulkiness, softness to the touch, and overall softness as a fiber aggregate. For the first time, it became possible to manifest and move around. The method for obtaining fibers with such a composite shape will be explained in detail later, but by creating a fiber aggregate with the composite shape described above, we will be able to develop an unprecedented natural fiber-like feel for the first time. It became possible to do so.
また、熱融着性繊維としては、不織布作成後の強力が重
要なポイントであることは当然であるので、−例として
第１図にはポリエチレン対ポリエチレンテレフタレート
が５０対５０の比’ｌＫのものを示したが、接着強力を
より向上させるためには、熱融着性ポリマーの比率を上
げることが好ましい。In addition, since it is natural that the strength of the nonwoven fabric is important for heat-fusible fibers, as an example, Figure 1 shows a fiber with a ratio of 50:50 of polyethylene to polyethylene terephthalate. However, in order to further improve adhesive strength, it is preferable to increase the proportion of the heat-fusible polymer.
目的に応じて複合比率を変更すべきでｂろう０より高強
力の不織布が目的であるならポリエチレン比率を５０％
以上に設定すべきであることは言う１でもない。The composite ratio should be changed depending on the purpose. If the purpose is a nonwoven fabric with higher strength than b wax 0, the polyethylene ratio should be 50%.
There is no need to say that the above settings should be made.
また、繊維断面に釦けるＡ成分とＢ成分の界面での接触
長の平均値Ｘが繊維断面の平均周長ｙに対して下記式（
Ｌ）又は（２）に示される関係で表わされることが大き
な特長でめる。In addition, the average value X of the contact length at the interface between A component and B component buttoned on the fiber cross section is expressed by the following formula (
A major feature is that it is expressed by the relationship shown in L) or (2).
パーセント）
単ＩＲｍ断面の平均周長ｙとＡ成分とＢ成分の界きく複
合状態が広範囲に分布している繊維の混合物で存在して
いることが大きな特徴である。例えば、Ａ成分とＢ成分
の重量比率が１＝１の場合、モデル的なもので説明する
と、第６図（ニ）のような貼り合せ断面では＊ ｘ／ｙ
が０．３〜０．４くらいであり、第６図（ホ）のような
Ａ成分とＢ成分が５層を形成している断面ではｘ／ｙが
１．０８〜１．１０＜らいであり、第６図（へ）のよう
なＡ成分とＢ成分が１０／ｉを形成している断面ではｘ
／ｙが１．８〜２．１ぐらいである。これに対して本発
明繊維はｓ ｘ／ｙが小さいものは０．５０のものも存
在しｓ ｘ／ｙが大きいものは４．０くらいのものも存
在し、二成分の接触界面が小さいものから大きなものま
で非常に広い範囲で檀々の複合形状を有した繊維が混在
化していることがわかった。ｘ／ｙが小さいものから、
大きいものまで広い範囲で分布していることが、大きな
特徴であり、本発明繊維が自然な斑と天然繊維に似た柔
らかい感触が発現されるための大きな要因となっている
と考えられる。The major feature is that it exists in a mixture of fibers in which the average circumference y of a single IRm cross section and the composite state at the boundary between the A component and the B component are distributed over a wide range. For example, when the weight ratio of component A and component B is 1=1, to explain it in terms of a model, in the bonded cross section as shown in Figure 6(d), *x/y
is about 0.3 to 0.4, and x/y is about 1.08 to 1.10 in the cross section where A component and B component form five layers as shown in Figure 6 (e). In the cross section where A component and B component form 10/i as shown in Fig. 6(f), x
/y is about 1.8 to 2.1. On the other hand, some of the fibers of the present invention have a small s x/y of 0.50, others have a large s x/y of about 4.0, and the contact interface between the two components is small. It was found that fibers with complex shapes such as dandelions were mixed in a very wide range from large to large. From the smallest x/y,
A major feature of the fibers is that they are distributed over a wide range, including large particles, and are considered to be a major factor in the fibers of the present invention exhibiting natural mottling and a soft feel similar to natural fibers.
繊維断面におけるＡ成分とＢ成分の接触長の測定は、単
繊維１００本をランダムに採取しＡとＢの接触長を測定
し、その平均値で示した。具体的な接触長の測定は、正
確に測定するにはコンピューターによる画像解析によっ
て求めることができるが、簡便的には、繊維断面写真を
高倍率に拡大し、方眼を乗せて、２成分境界線のその目
の数を読みとることによっても可能であるし、マツプメ
ジャーを用い２成分境界線の曲線上を走行ギヤーを回転
走査させることによっても可能である。本発明で述べて
いる実施例中での数値は、マツプメジャーを用いて測定
した数値で説明している。To measure the contact length between A component and B component in the fiber cross section, 100 single fibers were randomly sampled, the contact length between A and B was measured, and the average value was shown. The specific contact length can be measured accurately by image analysis using a computer, but it is convenient to enlarge the fiber cross-sectional photograph to a high magnification, place a grid on it, and draw the two-component boundary line. This can be done either by reading the number of rows or by rotating and scanning the traveling gear on the curve of the two-component boundary line using a map measure. The numerical values in the examples described in the present invention are explained using numerical values measured using a map measure.
次に、本発明の繊維の製造例について説明する。Next, an example of manufacturing the fiber of the present invention will be described.
本発明の複合形状繊維構造を発現させるためには紡糸時
にＡポリマーとＢポリマーの２成分のポリマーが一定条
件で不均一混合され、かつ各ノズル孔へ異なった状態で
平均−混合ボリマー流が分配されることが重要であるが
、それの紡糸方法の一例を第３図、第４図に示す。第３
図、第４図に示したような複合紡糸口金装置を使用して
紡糸すればよい。別々の溶融押出機によりそれぞれ押出
されたＡポリマー及びＢポリマーポリマー溶融流は別々
に計量機により所定量計量された後、サンドボックス１
の濾過部８で濾過された後、フィルター６をそれぞれ経
た後、ミキシンググレート２に設けられた静止混合器５
で所定条件下で混合され、分配板３の分配路７を経て放
射線状に分配した後、円周溝９ヘボリマーが流れ満たさ
れた後、口金板１０から紡出される。In order to develop the composite-shaped fiber structure of the present invention, two polymer components, A polymer and B polymer, are mixed non-uniformly under certain conditions during spinning, and an average-mixed polymer flow is distributed to each nozzle hole in different conditions. It is important to note that an example of the spinning method is shown in FIGS. 3 and 4. Third
Spinning may be carried out using a composite spinneret device as shown in FIGS. The A polymer and B polymer polymer melt flows extruded by separate melt extruders are separately weighed by a weighing machine in a predetermined amount, and then transferred to a sandbox 1.
After passing through the filter 6, the static mixer 5 installed in the mixing grate 2
After being mixed under predetermined conditions and distributed radially through the distribution path 7 of the distribution plate 3, the flow fills the circumferential groove 9 with the polymer, and then the mixture is spun out from the spinneret plate 10.
ここで２成分のポリマーが不均一混合状態とするために
静止型混合器５の混合素子の数を適切に選ぶことが非常
に重要である。現在実用化されている静止型混合器は数
種類あるが、例えばケニツクス（Ｋｅｎｔｃｓ ）社の
１８００左右にねじった羽根を９０° ずらして配列し
たｎエレメント通過させると２ｎ層分割するタイプのス
タチックミキサーを用いた場合は、エレメント数が３〜
８の範囲にする必要がある。口金板が一周孔配列の場合
更に好１しくは、４〜６の範囲が最適である。８工レメ
ント以上にすると、ＡポリマーとＢポリマーの混合性が
良くなりすぎて均一混合に近くなり、繊維化して目的と
する繊維構造が発現しにくくなる。Here, it is very important to appropriately select the number of mixing elements in the static mixer 5 in order to achieve non-uniform mixing of the two polymer components. There are several types of static mixers currently in use, such as Kentcs' 1800 static mixer, which divides into 2n layers by passing through n elements arranged with left and right twisted blades shifted by 90 degrees. When used, the number of elements is 3~
It needs to be in the range of 8. In the case where the cap plate has a circular array of holes, a range of 4 to 6 is more preferable. When the number of polymers is 8 or more, the miscibility of polymer A and polymer B becomes too good and the mixture becomes close to uniform, making it difficult to form fibers and develop the desired fiber structure.
適切なエレメント数に設定しても、両成分ポリマー（Ｂ
）を開始してから、ノズル孔より吐出する１での滞留時
間が長ずざると、ポリエステルとポリアミドの反応が進
みやすく紡糸時の粘度低下、繊維の着色が進み好筐しく
ない。両成分ポリマー（Ｂ）を開始してから５分以内に
吐出することが好ｔ Ｌ、 ＜ 、更に好１しくは３分
以内に吐出することが好ましい。滞留時間を少なくする
ために、分配板３のポリマー流路は適切な空間にする必
要がある。Even if the appropriate number of elements is set, both component polymers (B
) If the residence time in 1, which is discharged from the nozzle hole, is not long enough, the reaction between the polyester and polyamide will tend to proceed, resulting in a decrease in viscosity during spinning and coloring of the fibers, which is undesirable. It is preferable to discharge both component polymers (B) within 5 minutes after the start of the discharge, more preferably within 3 minutes. In order to reduce the residence time, the polymer channels in the distribution plate 3 need to be adequately spaced.
本発明の繊維を得るためにもう一つ重要なことは、分配
板３の構造が非常に重要である。第３図ｘ −ｘ’面か
ら見た分配板の詳細図面が第４図であるが、この分配板
で重要なことは、静止混合器を経て２成分ポリマーが多
層状態で流出してきた不均一混合流を放射線状の分配路
の数だけ分割１−で放射線状に不均一混合流を分割する
ことである。Another important thing to obtain the fiber of the present invention is the structure of the distribution plate 3. Figure 3 is a detailed drawing of the distribution plate seen from the x-x' plane. The method is to divide the mixed flow radially by dividing the mixed flow by the number of radial distribution paths (1-).
この分配路の数はノズル孔数より少なくすることが必要
である。好筐しくは、分配路の数とノズル孔数の比率は
１：１．５〜１：５の範囲にする必要がある。第４図の
例は、２４ホールノズに対して１２の分配路を設定した
例である。It is necessary that the number of distribution channels be smaller than the number of nozzle holes. Preferably, the ratio between the number of distribution channels and the number of nozzle holes should be in the range of 1:1.5 to 1:5. The example shown in FIG. 4 is an example in which 12 distribution paths are set for a 24-hole nozzle.
静止混合器から分配路を経てノズル孔より吐出される時
の２成分ポリマーの不均一混合状態の流れをモデル的に
更に詳しく説明すると、例えば４エレメントの静止混合
器を経た２成分のポリマー流は第５図に示す如（、Ａ成
分８層、Ｂ成分８層のトータル１６層の層状ポリマー流
となり、該ポリマー流を例えば第４図の如き１２分配路
を有する分配板を通過させると各分配路へは（１）〜（
１２）のポリマー流の状態で分配され、（１）、（１２
）、（６）、（７）ブロックは層数が極端に少なく、（
３）、（４）、（１０）、（９）は層数が一番多い状態
で、（２）、（５）、（８）％ （１１） は中間の
状態でノズル上部円周溝へ至る。その後各ブロックへ、
ノズル孔が２個以上配置されている場合、ブロックの境
界に存在するノズル孔へは両方のブロックからポリマー
流が流れこみ、（１）、（１２）、（６）、（７）と（
３）、（４）、（９）、（１０）との混合状態の差が更
に拡大されて吐出されるために、結果として第２図（イ
） （ｃｌ） （ハ）の単ｌＲｍ間で複雑に異なった複
合形状が混在化した繊維が得られるわけである。To explain in more detail using a model the flow of two-component polymers in a non-uniformly mixed state when they are discharged from a static mixer through a distribution path and from a nozzle hole, for example, the flow of two-component polymers after passing through a four-element static mixer is as follows. As shown in FIG. 5, a laminar polymer flow with a total of 16 layers (8 layers of A component and 8 layers of B component) is obtained. When the polymer flow is passed through a distribution plate having 12 distribution channels as shown in FIG. To the road (1) - (
(12) is distributed in the state of polymer flow, (1), (12)
), (6), (7) blocks have an extremely small number of layers, and (
3), (4), (10), and (9) have the highest number of layers, and (2), (5), and (8)% (11) have an intermediate number of layers and are connected to the upper circumferential groove of the nozzle. reach. Then to each block,
When two or more nozzle holes are arranged, the polymer flow from both blocks flows into the nozzle holes located at the boundaries of the blocks, resulting in the formation of (1), (12), (6), (7) and (
3), (4), (9), and (10) is further expanded and discharged, as a result, the difference between the single 1Rm in Figure 2 (a), (cl), and (c) This results in fibers with a complex mixture of different composite shapes.
（１）、（６）、（７）、（１２）ブロックからは主に
（イ）あるいは（ロ）に類似の複合形状を形成した繊維
が発現し、（３）、（４）、 （９）、（１０）ブロッ
クからは主に（−〇を中心とした複合形状を有した繊維
が発現し、（２）、（５）、（８）、（ｌＯ）ブロック
からは主に（ロ）を中心とした複合形状のものと（イ）
又は（ハ）に似た複合形状のものが若干混在化した繊維
が得られることになる。(1), (6), (7), and (12) blocks mainly develop fibers with composite shapes similar to (a) or (b), and (3), (4), and (9). ), (10) blocks mainly develop fibers with a composite shape centered on (-〇), and from (2), (5), (8), (lO) blocks, mainly (b). Composite shapes centered around (a)
Alternatively, fibers with a composite shape similar to (c) may be obtained.
しかしながら、ポリマー流の時間方向の流れは同じ混合
状態で定常的に流れるため、繊維の長さ方向には、実質
的に同一形状の複合形状を保っている。However, since the polymer stream flows steadily in the same mixing state in the time direction, the fibers maintain substantially the same composite shape in the longitudinal direction of the fibers.
ケニツクス社以外の静止型混合器を用いる場合も ２ｎ
層分割以上に相当するエレメント数に設定した混合器を
使用する必要があることは言う筐でもない。東し社製ハ
イミキサー（Ｈｉ−Ｍｉｘｅｒ ）やテヤールス・アン
ド−ｏ ス（Ｃｈａｒｌｅｓｓ ＆ Ｒｏｓｓ ）社製
のａスＩＳＧミキサーなどは、ｎエレメント通過する時
の層分割数は４ｎ層分割であるので、エレメント数２工
レメント以上、４エレメント以下にすることが好ましい
。2n even when using a static mixer other than Kenics
There is no need to use a mixer whose number of elements is equal to or greater than the number of layers. The Hi-Mixer manufactured by Toshisha and the AS ISG mixer manufactured by Charles & Ross, etc., have 4n layer divisions when passing through n elements. It is preferable that the number of elements be 2 or more and 4 or less.
ＡポリマーとＢポリマーの複合比率は１５対８５〜８５
対１５の範囲にする必要がある。どちらか一方の成分が
１５重量嘩未満になると、比率の少ない成分の集合状態
が小さくなり、目的の複合形状に近くなったとしてもあ
筐り特徴が発現されない繊維となってし筐い好筐しくな
い。Ａ対Ｂが１５対８５〜８５対１５の範囲で、目的と
する風合及び工程性及び糸物性及び熱接着性不織布作成
後の強力等で総合的に判断し、最適の混合比率を選択す
ることが望ましい。Composite ratio of A polymer and B polymer is 15:85-85
It needs to be in the vs.15 range. If either component is less than 15% by weight, the agglomeration state of the component with a small proportion becomes small, and even if the desired composite shape is obtained, the fiber will not exhibit any stiffness characteristics. It's not right. Select the optimal mixing ratio within the range of A:B from 15:85 to 85:15 by comprehensively determining the desired texture, processability, yarn physical properties, strength after making the heat-adhesive nonwoven fabric, etc. This is desirable.
本発明の繊維は、本発明の複合繊維のみよりなる融着処
理繊維集合体としても用いられるが、該繊維を１０重ｆ
ｔ１以上含む他繊維との混合融着処理繊維集合体として
も用いられる。The fibers of the present invention can also be used as a fusion-treated fiber aggregate consisting only of the composite fibers of the present invention.
It can also be used as a mixed and fused fiber aggregate with other fibers containing t1 or more.
繊維集合体として特に２０〜１００ｍに切断したものは
乾式用不織布バインダーとして、又３〜１０ｍに切断し
たものは湿式用不織布ノくインタ゛−として好適であり
、今迄にない柔らかい風合を有する不織布を得ることが
できる０
本発明でいう融着処理繊維集合体は種々の用途に対する
広い種類の不織布に有用でるるか、具体的な用途として
は、例えば、衛生材用途などが好適である０
以下、本発明を実施例により説明するが、これに限定さ
れるものではない０尚、実施例中の不織布の柔らかさに
ついては、次に述べるＪＩＳ Ｌ１０８５−５−７剛
軟度Ａ法４５°カンチレノく一法によつた。Fiber aggregates cut into 20 to 100 m lengths are suitable as a dry nonwoven binder, and 3 to 10 m lengths are suitable as interlayers for wet process nonwoven fabrics, and are nonwoven fabrics with an unprecedented soft texture. 0 The fusion-treated fiber aggregate according to the present invention is useful for a wide variety of nonwoven fabrics for various uses.Specifically, for example, it is suitable for use in sanitary materials.0 or less The present invention will be explained by way of examples, but is not limited thereto.The softness of the nonwoven fabrics in the examples is determined according to the following JIS L1085-5-7 bending resistance A method 45° cantilever. I followed the law.
ＦＭＪチ、２ｍＸ １５ｃｍの試験片を、たて、よコ方
向にそれぞれ５枚採取し、カンチレノく固形試験装置で
一端が４５°の斜面をもつ表面の滑らかな水平台の上に
、短辺をスケールの基線に合わせて置いたのち、試験片
を斜面の方向にゆるやかに滑らせて、試験片の一端の中
央が斜面と接したとき、試験片の他端の位置をスケール
によって読む。剛軟度は試験片の押し出された長さ（調
）で示され、釦のしの５枚の表裏をはかり、たて、よこ
方向それぞれの平均値で表す０
測定サンプルの作成は、測定試料２デニール５１篩の原
綿を作成し、目付３０ ｆ／ｄのウェッブを作成し、そ
の後人成分ポリマーの融点プラス３０℃の温度で熱風処
理をして不織部を作成し測定した。FMJ sample 5 test pieces of 2 m x 15 cm each in the vertical and horizontal directions. After placing the specimen along the base line of the scale, slide the specimen gently in the direction of the slope, and when the center of one end of the specimen touches the slope, read the position of the other end of the specimen on the scale. The bending resistance is indicated by the extruded length (key) of the test piece, and is expressed as the average value in the vertical and horizontal directions by measuring the front and back sides of five buttons. Raw cotton with a 2-denier 51 sieve was prepared, a web with a basis weight of 30 f/d was prepared, and then a nonwoven part was prepared and measured by hot air treatment at a temperature of 30° C. above the melting point of the human component polymer.
普た、他の＃ｊｌ維を混合する場合は、代表的な例トシ
テ、通常のポリエチレンテレフタレート繊維を５０唾、
熱融着性繊維％−５０’％の混率で混超し目付３０ Ｐ
／ｎ？のウェッブを作成し、その後熱風処理をして不織
布を作成し測定した０通常のポリエチレンテレフタレー
ト繊維５０’％と鞘成分が高密度ポリエチレン芯成分が
ポリエチレンテレフタレートの芯鞘型熱融着性繊維を５
０幅の比率で混綿した不織布は、カンチレバー値が約９
５ｗ位であった。カンチレバー値が小さい程、柔らかい
不織布と判断できる。When mixing other #jl fibers, a typical example is to use 50% of ordinary polyethylene terephthalate fiber,
Heat-fusible fiber % - 50'% blending ratio, fabric weight 30 P
/n? A web of 50'% normal polyethylene terephthalate fibers and 50% core-sheath type heat-fusible fibers whose core component is polyethylene terephthalate and 50'% normal polyethylene terephthalate fibers was prepared and then subjected to hot air treatment.
The nonwoven fabric mixed with a width ratio of 0 has a cantilever value of approximately 9.
It was around 5W. The smaller the cantilever value, the softer the nonwoven fabric can be judged to be.
また、不織布のふくらみ性については次に述べるＪＩＳ
Ｌ１０８５−５−１法による厚さ測定法によった。In addition, regarding the swelling properties of nonwoven fabrics, the following JIS
The thickness was measured using the L1085-5-1 method.
即ち、試料の異なる５箇所について、厚さ測定機を用い
て２０ ｔｆ／ａＡの圧力のもとて一定時間（１０秒）
放置して厚さ（箇）をはかり、その平均値で表す。上記
で述べた方法により不織布を作成し、測定したが、通常
のポリエチレンテレフタレート繊維５０％と鞘成分が高
密度ポリエチレン、芯成分カボリエテレ／テレフタレー
トの芯鞘型熱融着性繊維を５０係の比率で混綿し熱融着
処理した目付３０９／ｒｒｆの不織布の場合は厚さ約０
．１６ ｍ ＜らいであった。厚さが厚い程ふくらみの
大きい、本発明の目的に合った不織布であると言える。That is, five different locations on the sample were measured using a thickness measuring machine under a pressure of 20 tf/aA for a certain period of time (10 seconds).
Leave it to stand, measure the thickness, and express it as the average value. A nonwoven fabric was prepared and measured using the method described above, and the ratio of 50% normal polyethylene terephthalate fibers, core-sheath type heat-fusible fibers with a sheath component of high-density polyethylene and a core component of carburetele/terephthalate was 50%. In the case of a non-woven fabric with a fabric weight of 309/rrf that is mixed with cotton and heat-sealed, the thickness is approximately 0.
．． 16 m < leprosy. It can be said that the thicker the nonwoven fabric, the larger the swell, which is suitable for the purpose of the present invention.
〔実施例１〕
Ａポリマーとして高密度ポリエチレン（三菱化成（社）
製ユカロンノ・−ドＪＸ−１０）を用い、Ｂポリマーと
して固有粘度〔η］’Ｑ、６８フェノール／テトラクロ
ルエタン１：１．３０℃での測定のポリエチレンテレフ
タレートを用いたＯそれぞれを別々の押出機にて溶融押
出し、Ａ対Ｂの比率が５０対５０１ｉｔ％となるように
それぞれギアボングで計量した後、紡糸バックへ供給し
、その後第３図に示した装置により紡糸バック内でケニ
ツク社製の４エレメントスタチツクミキサーでＡｌｉ分
とＢ成分層状分割ポリマー流を形成させ、分配路を１２
個有する分配板を通過させた後２４ホールの丸孔ノズル
より口金温度２９０℃で吐出し、捲取速度１０００ ｍ
／ｍｉｎで溶融紡糸した。得られた紡糸原子を７５℃の
水浴で３．５倍延伸し、ついで９５℃の水浴で５多の収
縮金入れたのち、機械捲縮をかけ、ついで一般的な油剤
をＱ、１ｗｔ％になるように付与し、１００℃で３０分
間弛緩熱処理し、その後５１ｓａｍの長さに切断して単
糸デニール２の原綿とした。[Example 1] High-density polyethylene (Mitsubishi Kasei Corporation) was used as polymer A.
Separate extrusion was performed using polyethylene terephthalate with intrinsic viscosity [η]'Q, 68 phenol/tetrachloroethane 1:1. measured at 30°C as polymer B, using After melt-extruding with a machine and weighing with a gear bong so that the ratio of A to B is 50:501 it%, it is supplied to a spinning bag. A 4-element static mixer was used to form a layered divided polymer flow for the Ali and B components, and the distribution channel was divided into 12
After passing through a proprietary distribution plate, it is discharged from a 24-hole round hole nozzle at a mouth temperature of 290°C, and a winding speed of 1000 m
/min. The obtained spinning material was stretched 3.5 times in a 75°C water bath, then 5 times shrinkage was applied in a 95°C water bath, mechanically crimped, and a general oil was added to Q to 1wt%. The fibers were applied to the fibers and subjected to a relaxation heat treatment at 100° C. for 30 minutes, and then cut into a length of 51 sam to obtain raw cotton with a single denier of 2.
得られた該原綿５０弔と通常のポリエチレンテレフタレ
ート原綿（単繊維２デニール、カット長５１ ｍ ）
５０％を混綿したものと、該原綿１００俤のものとそれ
ぞれ目付３０ ｆ／ＩＴ？のウェッブを作成し、その後
、１５０℃で熱風処理をして不織布を作成した。いずれ
も紡糸から最終の不織布作成１で工程性は良好で問題な
かった。いずれも不織布の風合は、自然な柔らかさとタ
ッチがあり良好であった。50 pieces of the obtained raw cotton and ordinary polyethylene terephthalate raw cotton (single fiber 2 denier, cut length 51 m)
50% blended cotton and 100 yen raw cotton, each with a basis weight of 30 f/IT? A web was created, and then hot air treatment was performed at 150°C to create a nonwoven fabric. In all cases, the process performance from spinning to final nonwoven fabric production 1 was good and there were no problems. In all cases, the texture of the nonwoven fabrics was good, with natural softness and touch.
〔比較例１〕
Ａポリマーとして高密度ポリエチレン（三菱化成 ユカ
ロンハードＪＸ−１０）を用い、Ｂポリマーとして固有
粘度〔η３０．６８フェノール／テトラクロルエタン１
：１．３０℃での測定のポリエチレンテレフタレートを
用いた。それぞれを別々の押出機にて溶融押出し、Ａ対
Ｂの比率が５０対５０重竜優となるようにそれぞれギア
ポンプで計量した後、紡糸パックへ供給し、その後Ａポ
リマーを鞘成分、Ｂポリマーを芯成分とする芯鞘型複合
形状となるように常法によりポリマー流をパック内でコ
ントロールし、２４ホールの丸孔ノズルより口金温度２
９０℃で吐出し、捲取速度１０００ ！ｖｆｎｉｎで溶
融紡糸した。得られた紡糸原糸を７５℃の水浴で３．５
倍延伸し、ついで９５℃の水浴で５％の収縮を入れたの
ち、機械捲＠をかけ、ついで一般的な油剤をＱ、１ｗｔ
％になるように付与し、１００℃で３０分間弛緩熱処理
し、その後５１ｍの長さに切断して単糸デニール２の原
綿とした。[Comparative Example 1] High density polyethylene (Mitsubishi Kasei Yucalon Hard JX-10) was used as the A polymer, and intrinsic viscosity [η30.68 phenol/tetrachloroethane 1] was used as the B polymer.
:1. Polyethylene terephthalate measured at 30°C was used. Each was melt-extruded using separate extruders, weighed using a gear pump so that the ratio of A to B was 50:50, and then supplied to a spinning pack. After that, polymer A was used as a sheath component, and polymer B was added as a sheath component. The polymer flow is controlled in the pack by a conventional method so that it has a core-sheath composite shape as a core component, and the mouth temperature is 2.
Discharge at 90℃, winding speed 1000! It was melt spun with vfnin. The obtained spun yarn was heated to 3.5% in a 75°C water bath.
Stretched twice, then subjected to 5% shrinkage in a water bath at 95°C, mechanically wound, and then coated with a general oil Q, 1wt.
%, and subjected to relaxation heat treatment at 100° C. for 30 minutes, and then cut into a length of 51 m to obtain raw cotton with a single yarn denier of 2.
得られた該原綿５０％と通常のポリエチレンテＶ ７
タｖ−） ＷＮ＆ （単繊ｆ４２デニール、カット長５
１ ｍ ） ５０ ％を混綿したものと該原綿１００悌
のものとそれぞれ目付３０ ｆ／ｎ？のウェッブを作成
し、その後、１５０℃で熱風処理をして不織布を作成し
た。いずれも、得られた不織布は、柔らかさ、嵩高性と
もに実施例１より劣るものであった。50% of the obtained raw cotton and ordinary polyethylenete V7
V-) WN& (Single fiber F42 denier, cut length 5
1 m) 50% blended cotton and 100% raw cotton, each with a basis weight of 30 f/n? A web was created, and then hot air treatment was performed at 150°C to create a nonwoven fabric. In both cases, the obtained nonwoven fabrics were inferior to those of Example 1 in both softness and bulk.
第１表
〔実施例２〜７〕
実施例１と同一のポリマーを用い、実施例２は複合比率
がＡｌ６が３０／７０、実施例３はＡ／Ｂ７０／３０で
行ない、他は実施例１と同一条件で実施した。実施例４
，５はそれぞれスタチックミキサーのエレメント数を３
と７に変更し、他は実施例１と同一条件で実施した。実
施例６は分配板の分配数を８にし２４ホールの一周ノズ
ルで行ない実施例７は分配板の分配数を８にし３６ホー
ルの一周ノズルで行ない、他は実施例１は同一の条件で
実施した。いずれも工程性良好でかつ良好な不織布が得
られた。Table 1 [Examples 2 to 7] Using the same polymer as in Example 1, Example 2 had a composite ratio of Al6 of 30/70, Example 3 had A/B of 70/30, and the others were as in Example 1. It was conducted under the same conditions. Example 4
, 5 respectively indicate the number of elements of the static mixer as 3.
and 7, and the other conditions were the same as in Example 1. In Example 6, the distribution number of the distribution plate is 8 and the nozzle goes around 24 holes. In Example 7, the distribution number of the distribution plate is 8 and the nozzle goes around 36 holes. Otherwise, Example 1 is conducted under the same conditions. did. In all cases, nonwoven fabrics with good processability and good quality were obtained.
〔実施例８，９〕
実施例８はＢポリマーとしてポリブチレンテレフタレー
ト（三菱化成σ」製ノバドー／Ｉ／５００８）？用い、
実施例９はＢポリマーとしてナイロン−６（宇部興産（
財）製１０１３ＢＫ）を用い、他は実施例１と同一条件
で実施した。[Examples 8 and 9] In Example 8, polybutylene terephthalate (Novado/I/5008 manufactured by Mitsubishi Kasei σ) was used as the B polymer. use,
Example 9 uses nylon-6 (Ube Industries) as B polymer.
The experiment was carried out under the same conditions as in Example 1, except that 1013BK (manufactured by Co., Ltd.) was used.
いずれも工程性良好でかつ良好な不織布が得られた。In all cases, nonwoven fabrics with good processability and good quality were obtained.
〔実施例１０１
Ａポリマーにポリプロピレン（チッソ（社）製に−１０
０８）を用い、他は実施例１と同一の条件で、不織布を
作成した。この際熱接着処理温度は２００℃の熱風下で
実施した。工程性良好でかつ良好な不織布が得られた。[Example 101 Polypropylene (manufactured by Chisso Corporation) -10 was added to A polymer.
A nonwoven fabric was prepared using the following materials (No. 08) and under the same conditions as in Example 1 except for the above conditions. At this time, the thermal bonding treatment temperature was 200° C. under hot air. A nonwoven fabric with good processability and good quality was obtained.
〔実施例１１〕
Ａポリマーとしてエチレン−酢酸ビニル共重合体ポリマ
ー（三井ポリケ□カル０製エバフレックスＰ−１４０５
）を用い、他は実施例１と同一の条件で不織布を作成し
た。工程性良好でかつ良好な不織布が得られた。[Example 11] Ethylene-vinyl acetate copolymer polymer (Evaflex P-1405 manufactured by Mitsui Polytechnic Cal 0) was used as the A polymer.
), and the other conditions were the same as in Example 1 to create a nonwoven fabric. A nonwoven fabric with good processability and good quality was obtained.
〔比較例２，３〕
実施例１と同一のポリマーを用い、比較例１はＡｌ６の
複合比率を１０７９０とし、比較例２はＡｌ６の複合比
率を９０／１０とし他は実施例１と同一の条件で実施し
たが、いずれもノズル吐出時に斜向、ビス落ちが多く紡
糸性が不良でめった。得られた繊維の複合形状は、海島
構造に近いもので平凡な複合形状であった。筐た得られ
た不織布も特徴のないものであった。[Comparative Examples 2 and 3] Using the same polymer as in Example 1, Comparative Example 1 had an Al6 composite ratio of 10790, Comparative Example 2 had an Al6 composite ratio of 90/10, and the rest was the same as Example 1. Although experiments were carried out under these conditions, in all cases the spinning properties were poor due to oblique orientation and many dropped screws during nozzle discharge. The composite shape of the obtained fiber was similar to a sea-island structure and was a common composite shape. The obtained nonwoven fabric was also non-characteristic.
〔比較例４〕
実施例１と同じポリマーを用い、スタチツクミキサ−の
エレメントを２で実施した。紡糸性及び後工程性は良好
でめったが、複合形状が本発明の目的とする単繊維間で
ランダムに異なり、一方の成分が独立島状成分を形成し
ているものと、層状分割層を形成しているものと、二成
分が偏在化した貼り合せ構造をしているものの繊維が混
在化した状態でランダムに形成される状態には十分にな
っていなかった。筐た、得られた不織布もめ筐り特徴の
ないものであった。[Comparative Example 4] Using the same polymer as in Example 1, element 2 of a static mixer was used. The spinnability and post-processability were good, but the composite shape was randomly different among the single fibers, which is the object of the present invention, and one component formed an independent island-like component and the other formed a layered divided layer. In some cases, the fibers are mixed and randomly formed in a bonded structure in which the two components are unevenly distributed. However, the resulting non-woven fabric had no characteristics.
〔比較例５〕
実施例１と同じポリマーを用い、スタチックミキサーの
エレメントを１２で実施した。繊維化工程性は良好であ
ったが、複合形状は海鳥構造に近いものが大部分であっ
た。筐た、得られた不織布も、あまり特徴のないもので
あった。[Comparative Example 5] Using the same polymer as in Example 1, a static mixer with 12 elements was used. Although the fiberization processability was good, most of the composite shapes were close to seabird structures. The obtained nonwoven fabric also did not have many characteristics.
以上の各実施例、比較例の条件並びに結果を筐とめて第
２表に記す。 以下余白（本発明の効
果）
以上、本発明は、特定条件を満たすポリオレフィンと融
点１５０℃以上の結晶性熱可塑性樹脂の２種のポリマー
を、所定の条件を満足する方法で複合紡糸し、複合形状
が繊維の長さ方向には実質的に同一形状でありながら、
単繊維間でランダムに異なる特殊複合繊維を得、天然繊
維に似た自然な斑と柔らかいソフト風合を有する新規な
熱融着性複合繊維を提供することにある。The conditions and results of each of the above examples and comparative examples are summarized in Table 2. Margins below (Effects of the present invention) As described above, the present invention involves composite spinning of two types of polymers, a polyolefin that satisfies specific conditions and a crystalline thermoplastic resin with a melting point of 150°C or higher, by a method that satisfies predetermined conditions. Although the shape is substantially the same in the length direction of the fiber,
To provide a new heat-fusible conjugate fiber having natural irregularities and a soft texture similar to natural fibers by obtaining special conjugate fibers that vary randomly between single fibers.
第１図は、本発明繊維の断面構造を示す写真の一例であ
る。第２図は、本発明Ｒ維の典型的な複合形状の一例の
モデル的スケッチ図である。第３図は本発明繊維の紡糸
口金装置の一例を示す断面図で、第４図は紡糸口金装置
の一例の分配板をＸ−で面から見た図である。第５図は
分配板へ至った２Ｆｌｉ、分ポリマー複合流が放射状に
分配されていく時の各ブロックのポリマー複合流をモデ
ル的に示したものである。第６図は複合繊維の一般的な
ものの一例として示したものである。
（イ）
（ニ）
（ロ）
（ホ）
（ハ）
（へ）FIG. 1 is an example of a photograph showing the cross-sectional structure of the fiber of the present invention. FIG. 2 is a model sketch diagram of an example of a typical composite shape of the R fiber of the present invention. FIG. 3 is a cross-sectional view showing an example of a spinneret device for producing fibers of the present invention, and FIG. 4 is a view of a distribution plate of an example of the spinneret device viewed from the plane X-. FIG. 5 is a model showing the polymer composite flow of each block when the 2Fli polymer composite flow reaching the distribution plate is distributed radially. FIG. 6 shows an example of a common composite fiber. (a) (d) (b) (e) (c) (f)
Claims (1)
塑性ポリマー（Ｂ）からなる複合繊維でありＡポリマー
とＢポリマーの重量比率が１５：８５〜８５：１５の範
囲で、しかもＡ成分とＢ成分の複合形状が繊維の長さ方
向には実質的に同一形状でありながら単繊維間でランダ
ムに異なり、該単繊維は、一方の成分が層状分割層を形
成している複合形状のものと、一方の成分が独立島状成
分を形成している複合形状のものと、更に二成分が偏在
化して貼り合せ構造を形成した複合形状のものが混在化
した状態であり、かつ単繊維の繊維断面におけるＡ成分
とＢ成分の界面での接触長の平均値ｘが繊維断面の平均
の周長ｙに対して下記式（１）又は（２）に示される関
係で表わされることを特徴とする熱融着性複合繊維。 １．０×ａ／１００≦ｘ／ｙ≦１０．０×ａ／１００但
しａ≦ｂの時…（１）１．０×ｂ／１００≦ｘ／ｙ≦１
０．０×ｂ／１００但しｂ≦ａの時…（２）ａ，ｂはそ
れぞれＡポリマー，Ｂポリマーの重量パーセント （２）請求項第（１）項記載の繊維を１０重量％以上含
み、該繊維のＡ成分ポリマーの融点以上で融着処理して
なる繊維集合体。 （８）請求項第（２）項の繊維集合体が不織布であるこ
とを特徴とする繊維集合体。 （４）ポリオレフイン（Ａ）と融点１５０℃以上の熱可
塑性ポリマー（Ｂ）を別々に溶融押出し、次いでこれら
両ポリマーが接触を開始してから５分以内に、Ａ：Ｂの
重量比率が１５：８５〜８５：１５の範囲で、紡糸直前
スタチツクミキサーを通して層状複合形態となし、該層
状ポリマー流を放射線状にノズル孔数より少ない分割数
で分割分配しなおし、その後多孔紡糸ノズルより紡糸す
ることを特徴とする熱融着性複合繊維の製造方法。[Claims] (1) A composite fiber consisting of a polyolefin (A) and a thermoplastic polymer (B) having a melting point of 150°C or higher, in which the weight ratio of the A polymer and the B polymer is in the range of 15:85 to 85:15. Moreover, the composite shape of the A component and the B component is substantially the same in the length direction of the fiber, but varies randomly between the single fibers, and the single fiber has one component forming a layered split layer. There are composite shapes in which one component forms an independent island-like component, and composite shapes in which two components are unevenly distributed to form a bonded structure. , and the average value x of the contact length at the interface between the A component and the B component in the fiber cross section of the single fiber is expressed by the relationship shown in the following formula (1) or (2) with respect to the average circumference y of the fiber cross section. A heat-fusible composite fiber that is characterized by the ability to 1.0×a/100≦x/y≦10.0×a/100 However, when a≦b…(1) 1.0×b/100≦x/y≦1
0.0×b/100 However, when b≦a... (2) a and b are weight percentages of polymer A and polymer B, respectively (2) Contains 10% by weight or more of the fibers described in claim (1), A fiber aggregate obtained by fusing the fibers at a temperature higher than the melting point of the component A polymer. (8) A fiber aggregate according to claim (2), characterized in that the fiber aggregate is a nonwoven fabric. (4) Polyolefin (A) and thermoplastic polymer (B) with a melting point of 150°C or higher are separately melt-extruded, and then within 5 minutes after these two polymers start contacting, the weight ratio of A:B is 15: In the range of 85 to 85:15, it is passed through a static mixer immediately before spinning to form a layered composite form, and the layered polymer flow is re-divided and distributed radially into a number smaller than the number of nozzle holes, and then spun using a multi-hole spinning nozzle. A method for producing a heat-fusible composite fiber characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1205510A JPH0696809B2 (en) | 1989-08-07 | 1989-08-07 | Heat-fusible composite fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1205510A JPH0696809B2 (en) | 1989-08-07 | 1989-08-07 | Heat-fusible composite fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0369613A true JPH0369613A (en) | 1991-03-26 |
| JPH0696809B2 JPH0696809B2 (en) | 1994-11-30 |
Family
ID=16508062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1205510A Expired - Fee Related JPH0696809B2 (en) | 1989-08-07 | 1989-08-07 | Heat-fusible composite fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0696809B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO1996037644A3 (en) * | 1995-05-25 | 1996-12-27 | Minnesota Mining & Mfg | Undrawn, tough, durably melt-bondable, macrodenier, thermoplastic, multicomponent filaments |
| US5786284A (en) * | 1993-04-08 | 1998-07-28 | Unitika, Ltd. | Filament having plexifilamentary structure, nonwoven fabric comprising said filament and their production |
| KR200448823Y1 (en) * | 2009-04-15 | 2010-05-25 | 김정안 | Tray For Dry Fish Vacuum Packing |
| CN102341088A (en) * | 2009-12-18 | 2012-02-01 | 日本可乐丽医疗器材株式会社 | Dental curable composition and composite resin using the same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5025812A (en) * | 1973-07-12 | 1975-03-18 | ||
| JPS5175133A (en) * | 1974-12-25 | 1976-06-29 | Japan Exlan Co Ltd | SHINKINABOSE KISHINOSEIZOHOHO |
| JPS5266714A (en) * | 1975-11-26 | 1977-06-02 | Teijin Ltd | Production of composite fibers |
| JPS5761721A (en) * | 1980-10-02 | 1982-04-14 | Teijin Ltd | Elastic filament |
-
1989
- 1989-08-07 JP JP1205510A patent/JPH0696809B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5025812A (en) * | 1973-07-12 | 1975-03-18 | ||
| JPS5175133A (en) * | 1974-12-25 | 1976-06-29 | Japan Exlan Co Ltd | SHINKINABOSE KISHINOSEIZOHOHO |
| JPS5266714A (en) * | 1975-11-26 | 1977-06-02 | Teijin Ltd | Production of composite fibers |
| JPS5761721A (en) * | 1980-10-02 | 1982-04-14 | Teijin Ltd | Elastic filament |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO1996037644A3 (en) * | 1995-05-25 | 1996-12-27 | Minnesota Mining & Mfg | Undrawn, tough, durably melt-bondable, macrodenier, thermoplastic, multicomponent filaments |
| US5811186A (en) * | 1995-05-25 | 1998-09-22 | Minnesota Mining And Manufacturing, Inc. | Undrawn, tough, durably melt-bonded, macrodenier, thermoplastic, multicomponent filaments |
| US5972463A (en) * | 1995-05-25 | 1999-10-26 | 3M Innovative Properties Company | Undrawn, tough, durably melt-bondable, macrodenier, thermoplastic, multicomponent filaments |
| KR200448823Y1 (en) * | 2009-04-15 | 2010-05-25 | 김정안 | Tray For Dry Fish Vacuum Packing |
| CN102341088A (en) * | 2009-12-18 | 2012-02-01 | 日本可乐丽医疗器材株式会社 | Dental curable composition and composite resin using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0696809B2 (en) | 1994-11-30 |
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