JPH1193054A - Sanitary material - Google Patents
Sanitary materialInfo
- Publication number
- JPH1193054A JPH1193054A JP9214004A JP21400497A JPH1193054A JP H1193054 A JPH1193054 A JP H1193054A JP 9214004 A JP9214004 A JP 9214004A JP 21400497 A JP21400497 A JP 21400497A JP H1193054 A JPH1193054 A JP H1193054A
- Authority
- JP
- Japan
- Prior art keywords
- component
- fiber
- weight
- sheath
- sanitary material
- 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.)
- Withdrawn
Links
Landscapes
- Corsets Or Brassieres (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Laminated Bodies (AREA)
- Multicomponent Fibers (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、布類に対してズレ
防止性能の高い布帛を少なくとも一部に使用した衛生材
料に関し、さらに詳しくは、下着，衣類等に対してズレ
防止性能の高い衛生材料に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sanitary material using at least a part of a cloth having a high slip-preventing performance for cloths, and more particularly to a sanitary material having a high slip-preventing performance for underwear and clothing. About the material.
【０００２】[0002]
【従来の技術】従来から、衛生材料のバックシートには
オレフィン系熱接着性複合繊維からなる不織布が用いら
れている。しかし、該不織布は布類に対して摩擦抵抗力
が低くズレが生じやすいため、該不織布を紙おむつのバ
ックシートとして用いる場合には、衛生材料がズレない
ようバックシートに接着テープを貼付しておくか、滑り
止めの樹脂を塗布しておく等の加工を施していた。2. Description of the Related Art Conventionally, nonwoven fabrics made of olefin-based heat-adhesive conjugate fibers have been used for back sheets of sanitary materials. However, since the nonwoven fabric has a low frictional resistance to cloth and is likely to be displaced, when the nonwoven fabric is used as a backsheet of a disposable diaper, an adhesive tape is applied to the backsheet so that the sanitary material does not displace. Or, a process such as applying a non-slip resin has been performed.
【０００３】実案昭５６−１４８１５号公報に、生理用
ナプキンのズレ防止対策として、スポンジ状ゴムの微細
片とポリビニールアルコールとの混合樹脂液を噴霧定着
し乾燥させた不織布をバックシートとして用いた生理用
ナプキンが開示されている。しかしながら上記方法で
は、ポリビニールアルコールにスポンジ状ゴムの微細片
が均一に分散しにくく、そのため微細片が不織布表面へ
均一に塗布されず、ズレ防止の効果にムラのある製品と
なっていた。さらに、使用時に生じる布との摩擦によっ
て、スポンジ状ゴムの微細片が脱落し、下着を汚すとい
った問題があった。また、前記方法で生産を行う場合に
は、不織布に混合樹脂液を塗布する後加工工程が必要と
なり、生産コストが高くなってしまう問題もあった。つ
まり、従来から行われている方法では、基本的なナプキ
ンのズレ防止には効果を奏しているものの、性能の安定
性，コスト等に多くの問題が残されており、必ずしも満
足できるものではなかった。このように、コスト，加工
性に優れ、なおかつ、ズレ防止性能を満足した布帛をバ
ックシートに用いた衛生材料は今のところ開発されてい
ない。Japanese Utility Model Publication No. Sho 56-14815 discloses a nonwoven fabric as a back sheet which is spray-fixed with a mixed resin solution of fine pieces of sponge-like rubber and polyvinyl alcohol as a countermeasure to prevent the sanitary napkin from shifting. Sanitary napkins are disclosed. However, in the above method, fine pieces of sponge-like rubber are difficult to uniformly disperse in polyvinyl alcohol, so that the fine pieces are not evenly applied to the surface of the nonwoven fabric, resulting in a product having uneven displacement prevention effects. Further, there is a problem that fine pieces of sponge-like rubber fall off due to friction with a cloth generated during use, and soil underwear. Further, when the production is performed by the above method, a post-processing step of applying the mixed resin liquid to the nonwoven fabric is required, and there is a problem that the production cost is increased. In other words, although the conventional method is effective in preventing basic napkin displacement, many problems remain in performance stability, cost, etc., and are not always satisfactory. Was. As described above, a sanitary material using a fabric that is excellent in cost and workability and that satisfies the displacement prevention performance as a back sheet has not been developed so far.
【０００４】[0004]
【発明が解決しようとする課題】本発明の目的は、かか
る現状に鑑み、布類に対するズレ防止性能が安定してお
り、さらに使用時に布帛から素材が脱落しないズレ防止
性能に優れた布帛を少なくとも一部に用いた衛生材料を
提供することにある。SUMMARY OF THE INVENTION In view of the above situation, it is an object of the present invention to provide a fabric which has a stable performance for preventing displacement of cloth and which has excellent displacement preventing performance so that the material does not fall off from the fabric during use. It is to provide a sanitary material used partially.
【０００５】[0005]
【課題を解決するための手段】本発明者らは、上記課題
を解決すべく鋭意検討を重ねた結果、熱可塑性樹脂から
なる第１成分と、炭素数３〜８のα−オレフィン単位１
０〜６０重量％とエチレン単位９０〜４０重量％の共重
合ゴムからなる第２成分とから構成された複合繊維を主
成分とした布帛を衛生材料の一部に用いることで、上述
の課題を解決しうることを識って本発明に到達した。 （１） 第１成分が熱可塑性樹脂であり、第２成分が
（Ａ）炭素数３〜８のα−オレフィン単位から選ばれた
少なくとも１種を１０〜６０重量％と、（Ｂ）エチレン
単位を９０〜４０重量％含む共重合ゴムである、少なく
とも２成分からなる複合繊維で主に構成された布帛を少
なくとも一部に用いた衛生材料。 （２） 第１成分が熱可塑性樹脂であり、第２成分が
（Ａ）炭素数３〜８のα−オレフィン単位から選ばれた
少なくとも１種を１０〜６０重量％と、（Ｂ）エチレン
単位を９０〜４０重量％含む共重合ゴムである、少なく
とも２成分からなる複合繊維で主に構成された布帛と、
他の不織布，編物，織物，紙状物，フィルムから選ばれ
た少なくとも１種との積層体である前記（１）項に記載
の衛生材料。 （３） 複合繊維が、第１成分を芯成分とし、第２成分
を鞘成分とする鞘芯型複合繊維である前記（１）若しく
は（２）項の何れかに記載の衛生材料。 （４）複合繊維が、並列型複合繊維である（１）若しく
は（２）項の何れかに記載の衛生材料。 （５） 複合繊維が、芯成分をポリプロピレン樹脂と
し、鞘成分として（Ａ）炭素数３または４のα−オレフ
ィン単位から選ばれた少なくとも１種を１０〜６０重量
％と、（Ｂ）エチレン単位を９０〜４０重量％含む共重
合ゴムとする鞘芯型複合繊維である前記（１）〜（４）
項の何れかに記載の衛生材料。 （６） 吸収性物品のバックシートに用いられた前記
（１）〜（５）項の何れかに記載の衛生材料。Means for Solving the Problems The present inventors have conducted intensive studies to solve the above-mentioned problems, and as a result, have found that the first component composed of a thermoplastic resin and the α-olefin unit having 3 to 8 carbon atoms have one unit.
The above-mentioned problem is solved by using, as a part of a sanitary material, a fabric mainly composed of a composite fiber composed of 0 to 60% by weight and a second component made of a copolymer rubber having 90 to 40% by weight of an ethylene unit. The present invention has been reached, knowing that the problem can be solved. (1) The first component is a thermoplastic resin, and the second component is (A) 10 to 60% by weight of at least one selected from α-olefin units having 3 to 8 carbon atoms, and (B) ethylene unit. A sanitary material which is a copolymer rubber containing 90 to 40% by weight of at least a part of a fabric mainly composed of a composite fiber composed of at least two components. (2) The first component is a thermoplastic resin, the second component is (A) 10 to 60% by weight of at least one selected from α-olefin units having 3 to 8 carbon atoms, and (B) an ethylene unit. A fabric mainly composed of at least two-component composite fiber, which is a copolymer rubber containing 90 to 40% by weight of
The sanitary material according to the above (1), which is a laminate with at least one selected from other nonwoven fabrics, knits, woven fabrics, papers, and films. (3) The sanitary material according to (1) or (2), wherein the conjugate fiber is a sheath-core conjugate fiber having a first component as a core component and a second component as a sheath component. (4) The sanitary material according to any one of (1) and (2), wherein the conjugate fiber is a side-by-side conjugate fiber. (5) The composite fiber has a core component of a polypropylene resin, 10% to 60% by weight of (A) at least one kind selected from α-olefin units having 3 or 4 carbon atoms as a sheath component, and (B) an ethylene unit. (1) to (4), which are sheath-core type composite fibers made of a copolymer rubber containing 90 to 40% by weight of
The sanitary material according to any one of the above items. (6) The sanitary material according to any one of the above (1) to (5), which is used for a back sheet of an absorbent article.
【０００６】[0006]
【発明の実施の形態】以下、本発明を詳細に説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail.
【０００７】本発明に用いられる複合繊維の第１成分
は、熱可塑性樹脂である。例えば、ポリプロピレン，高
密度ポリエチレン，中密度ポリエチレン，低密度ポリエ
チレン，線状低密度ポリエチレン，プロピレンと他のα
−オレフィンとの結晶性共重合体等のポリオレフィン
類，ポリアミド類，ポリエチレンテレフタレート，ポリ
ブチレンテレフタレート，ジオールとテレフタル酸／イ
ソフタル酸等を共重合した低融点ポリエステル、ポリエ
ステルエラストマー等のポリエステル類、フッ素樹脂、
上記樹脂の混合物等、その他紡糸可能な樹脂等が例示で
きる。[0007] The first component of the composite fiber used in the present invention is a thermoplastic resin. For example, polypropylene, high density polyethylene, medium density polyethylene, low density polyethylene, linear low density polyethylene, propylene and other α
Polyolefins such as crystalline copolymers with olefins, polyamides, polyethylene terephthalate, polybutylene terephthalate, low-melting polyesters obtained by copolymerizing diols with terephthalic acid / isophthalic acid, polyesters such as polyester elastomers, fluorine resins,
Other spinnable resins and the like, such as a mixture of the above resins, can be exemplified.
【０００８】本発明に用いられる複合繊維の第２成分
は、（Ａ）炭素数３〜８のα−オレフィン単位から選ば
れた少なくとも１種を１０〜６０重量％と、（Ｂ）エチ
レン単位を９０〜４０重量％含む共重合ゴムであり、特
に、エチレン単位とα−オレフィン単位（炭素数３〜
８）との２元または３元系共重合ゴムが好ましく使用で
きる。例えば、エチレン−プロピレン共重合ゴム（ＥＰ
Ｒ），エチレン−ブテンー１共重合ゴム（ＥＢＲ），エ
チレン−プロピレン−ブテンー１共重合ゴム等が例示で
きる。（Ｂ）の比率が４０重量％未満の共重合ゴムであ
ると、本発明の衛生材料のズレ防止性能が不十分とな
り、（Ｂ）の比率が９０重量％を越えている共重合ゴム
であると、繊維加工性が不良となり好ましくない。この
様な共重合ゴムは本質的にはエラストマーであり、融点
を示さない場合もあるが一部結晶が残存し、そのため最
高で１００℃前後の融点を示す場合もある。以後共重合
ゴムの融点とは、融点を示す場合はその融点を、示さな
い場合は軟化点をいうものとする。The second component of the conjugate fiber used in the present invention comprises (A) 10 to 60% by weight of at least one kind selected from α-olefin units having 3 to 8 carbon atoms, and (B) an ethylene unit. A copolymer rubber containing 90 to 40% by weight, and particularly, an ethylene unit and an α-olefin unit (3 to
Binary or ternary copolymer rubbers with 8) can be preferably used. For example, ethylene-propylene copolymer rubber (EP
R), ethylene-butene-1 copolymer rubber (EBR), ethylene-propylene-butene-1 copolymer rubber, and the like. If the proportion of (B) is less than 40% by weight of the copolymer rubber, the hygiene material of the present invention has insufficient slippage preventing performance, and the proportion of (B) exceeds 90% by weight. In addition, the fiber workability becomes poor, which is not preferable. Such a copolymer rubber is essentially an elastomer and does not show a melting point in some cases. However, a part of crystals remains, so that it may show a melting point of up to about 100 ° C. Hereinafter, the melting point of the copolymer rubber means the melting point if it indicates a melting point, and the softening point if it does not.
【０００９】さらに、本発明に用いられる複合繊維が３
成分以上の多成分からなる場合、その多成分には熱可塑
性樹脂を用いることができる。例えば、ポリプロピレ
ン，高密度ポリエチレン，中密度ポリエチレン，低密度
ポリエチレン，線状低密度ポリエチレン，プロピレンと
他のα−オレフィンとの結晶性共重合体等のポリオレフ
ィン類，ポリアミド類，ポリエチレンテレフタレート，
ポリブチレンテレフタレート，ジオールとテレフタル酸
／イソフタル酸等を共重合した低融点ポリエステル、ポ
リエステルエラストマー等のポリエステル類、フッ素樹
脂、上記樹脂の混合物等、その他紡糸可能な樹脂等が例
示できる。Further, the conjugate fiber used in the present invention is 3
When it is composed of more than one component, a thermoplastic resin can be used for the multicomponent. For example, polyolefins such as polypropylene, high-density polyethylene, medium-density polyethylene, low-density polyethylene, linear low-density polyethylene, crystalline copolymers of propylene and other α-olefins, polyamides, polyethylene terephthalate,
Polybutylene terephthalate, low melting point polyester obtained by copolymerizing diol and terephthalic acid / isophthalic acid, polyesters such as polyester elastomer, fluororesin, a mixture of the above resins, and other spinnable resins can be exemplified.
【００１０】本発明に用いられる複合繊維は、少なくと
も２成分（以下、第１成分、第２成分という）からな
る。複合繊維が２成分からなり、布帛等に加工するとき
の接着成分として複合繊維自体を用いる場合には、繊維
表面の一部を占める第２成分が第１成分よりも低い融点
を持つことが最も好ましい。さらに、第１成分と第２成
分の融点差は、熱接着する手段によって好ましい値が異
なっており、例えば、スルーエア加工では、第１成分が
第２成分の融点よりも１０℃以上高いことが好ましく、
熱カレンダーロール加工では第１成分が第２成分の融点
よりも５℃以上高いことが好ましい。融点差が、この範
囲の場合で、低融点成分の軟化点以上、高融点成分の融
点より低い温度で熱処理を行うことで、風合いが良好な
状態で熱接合することができる。また、前記加工温度範
囲を越えて不織布加工を行ってもよいが、第１成分が溶
融してしまい、不織布の風合いは悪くなる傾向になる。
このとき、第２成分／第１成分の組合せとしては、例え
ば、エチレン−プロピレン共重合ゴム／ポリプロピレ
ン，エチレン−ブテンー１共重合ゴム／エチレン−プロ
ピレン−ブテンー１結晶性共重合体，エチレン−ブテン
ー１共重合ゴム／ポリエチレンテレフタレート，エチレ
ン−プロピレン共重合ゴム／ナイロン６６，エチレン−
プロピレン共重合ゴム／ポリエチレンテレフタレート，
組成の異なる２種以上のエチレン−ブテンー１共重合ゴ
ムの混合物／ポリエチレンテレフタレート，エチレン−
ブテンー１共重合ゴムとエチレン−プロピレン共重合ゴ
ムの混合物／ポリエチレン等が例示できる。第２成分／
第１成分の特に良好な組合わせとしては、エチレン−プ
ロピレン共重合ゴム／ポリプロピレン，エチレン−ブテ
ンー１共重合ゴム／ポリプロピレン，エチレン−プロピ
レン共重合ゴムとエチレン−ブテンー１共重合ゴムの混
合物／ポリプロピレンがあげられ、このとき、複合繊維
が鞘芯型であればより加工性が良好となり好ましい。The composite fiber used in the present invention comprises at least two components (hereinafter, referred to as a first component and a second component). When the conjugate fiber is composed of two components and the conjugate fiber itself is used as an adhesive component when processing into a fabric or the like, it is most preferable that the second component occupying a part of the fiber surface has a lower melting point than the first component. preferable. Further, the difference between the melting points of the first component and the second component is preferably different depending on the means for heat bonding. For example, in through-air processing, the first component is preferably at least 10 ° C. higher than the melting point of the second component. ,
In the hot calender roll processing, the first component is preferably higher than the melting point of the second component by 5 ° C. or more. When the difference in melting point is in this range, by performing the heat treatment at a temperature equal to or higher than the softening point of the low melting point component and lower than the melting point of the high melting point component, it is possible to perform thermal bonding with a good feeling. Further, the nonwoven fabric may be processed beyond the processing temperature range, but the first component is melted and the texture of the nonwoven fabric tends to deteriorate.
At this time, as the combination of the second component / the first component, for example, ethylene-propylene copolymer rubber / polypropylene, ethylene-butene-1 copolymer rubber / ethylene-propylene-butene-1 crystalline copolymer, ethylene-butene-1 copolymer Copolymer rubber / polyethylene terephthalate, ethylene-propylene copolymer rubber / nylon 66, ethylene-
Propylene copolymer rubber / polyethylene terephthalate,
Mixture of two or more ethylene-butene-1 copolymer rubbers having different compositions / polyethylene terephthalate, ethylene-
A mixture of butene-1 copolymer rubber and ethylene-propylene copolymer rubber / polyethylene can be exemplified. Second component /
Particularly preferred combinations of the first component include ethylene-propylene copolymer rubber / polypropylene, ethylene-butene-1 copolymer rubber / polypropylene, and a mixture of ethylene-propylene copolymer rubber and ethylene-butene-1 copolymer rubber / polypropylene. At this time, if the composite fiber is a sheath-core type, the processability becomes better and this is preferable.
【００１１】本発明に用いられる複合繊維は通常は鞘側
の共重合ゴムの融点（融点がない場合は軟化点）が芯側
の熱可塑性樹脂の融点よりも低い。しかし、一定の場
合、例えば、本発明に用いられる複合繊維が芯側にＰＣ
Ｌ（ポリεーカプロラクトーン）、鞘側にＰＣＬより高
い融点を有する共重合ゴムからなり、それに対して他の
熱接着性複合繊維を混綿して不織布化を行う場合、該熱
接着性繊維が鞘芯型の複合繊維であり、その鞘側の樹脂
の融点以上で且つ芯側樹脂の融点以下で熱接着した場
合、その温度がＰＣＬの融点以上で且つ共重合ゴムの融
点以下であるときは本発明に用いられる複合繊維は熱接
着後も繊維形状を保つことが出来るためその様にして調
製した不織布は本発明の衛生材料として用いることが出
来る。In the conjugate fiber used in the present invention, the melting point of the copolymer rubber on the sheath side (softening point if there is no melting point) is usually lower than the melting point of the thermoplastic resin on the core side. However, in certain cases, for example, the composite fiber used in the present invention is
L (poly-ε-caprolactone), a copolymer rubber having a melting point higher than that of PCL on the sheath side. Is a sheath-core type composite fiber, and when thermally bonded at a temperature not lower than the melting point of the resin on the sheath side and not higher than the melting point of the resin on the core side, when the temperature is higher than the melting point of PCL and lower than the melting point of the copolymer rubber. Since the conjugate fiber used in the present invention can maintain the fiber shape even after thermal bonding, the nonwoven fabric thus prepared can be used as the sanitary material of the present invention.
【００１２】本発明に用いられる複合繊維がｎ成分（ｎ
は３以上の整数）からなる多成分複合繊維の場合、第２
成分が繊維の表面の一部を占めることは必要で、それ以
外の成分の組み合わせとしては、隣り合った成分を構成
する樹脂同士は異なった組成の樹脂を用いるのが最も好
ましい。しかし、必要に応じて、全く同一の樹脂を組み
合わせることもできる。この場合は、繊維加工を行う紡
糸温度等を変更し、繊維としたときの樹脂の分子量、Ｍ
ＦＲ等の物性に差異を与えることが必要である。なお、
多成分複合繊維とすることにより、２成分系の複合繊維
ではコントロールし得なかった繊維，不織布，布帛等の
物性の変更が可能である。The conjugate fiber used in the present invention has an n-component (n
Is an integer of 3 or more).
It is necessary that the component occupies a part of the surface of the fiber, and as a combination of other components, it is most preferable that the resins constituting the adjacent components use resins having different compositions. However, exactly the same resin can be combined if necessary. In this case, the spinning temperature at which the fiber is processed is changed, and the molecular weight and M
It is necessary to give a difference to physical properties such as FR. In addition,
By using a multicomponent conjugate fiber, it is possible to change physical properties of a fiber, a nonwoven fabric, a cloth, and the like, which could not be controlled with a bicomponent conjugate fiber.
【００１３】本発明に用いられる繊維加工としては、溶
融紡糸法，スパンボンド法，メルトブロー法等の公知の
紡糸法が例示でき、これらの加工法により、マルチフィ
ラメント，モノフィラメント，ステープルファイバー，
トウ，ウエブ，不織布，編織物等の形態とすることがで
きる。Examples of the fiber processing used in the present invention include known spinning methods such as a melt spinning method, a spun bond method, and a melt blow method. By these processing methods, multifilaments, monofilaments, staple fibers, and the like can be used.
It can be in the form of tows, webs, non-woven fabrics, knitted fabrics and the like.
【００１４】本発明に用いられる複合繊維の形態は、鞘
芯型，偏心鞘芯型，並列型，異形鞘芯型，異形偏心鞘芯
型，異形並列型，中空鞘芯型，中空偏心鞘芯型，中空並
列型，３層以上の多層型，中空多層型，異型多層型，海
島型等で、かつ前記第１，第２成分を構成する成分のう
ち、第２成分が繊維表面の少なくとも一部を形成した構
造であればよい。また、３成分複合繊維の形態として
は、表層−鞘芯型，表層−並列型，表層−偏心鞘芯型，
異形表層−鞘芯型，異形表層−並列型，表層−中空鞘芯
型，表層−中空並列型，多層型，多層中空型，異形多層
型，海島型等が例示できる。さらに多成分複合繊維の場
合も同様である。第２成分が全繊維表面を覆う鞘芯型複
合繊維は滑り摩擦抵抗が大になり、並列型複合繊維は捲
縮をかけるのが容易であるという長所がある。The form of the conjugate fiber used in the present invention is a sheath-core type, an eccentric sheath-core type, a parallel type, a modified sheath-core type, a modified eccentric sheath-core type, a modified parallel type, a hollow sheath-core type, a hollow eccentric sheath-core. , A hollow parallel type, a multi-layer type having three or more layers, a hollow multi-layer type, a heterogeneous multi-layer type, a sea-island type, and the like. What is necessary is just the structure which formed the part. Examples of the form of the three-component composite fiber include a surface layer-sheath core type, a surface layer-parallel type, a surface layer-eccentric sheath core type,
Examples include a modified surface layer-sheath core type, a modified surface layer-parallel type, a surface layer-hollow sheath core type, a surface layer-hollow parallel type, a multilayer type, a multilayer hollow type, a modified multilayer type, and a sea-island type. The same applies to the case of multicomponent conjugate fibers. The sheath-core conjugate fiber in which the second component covers the entire fiber surface has the advantage that the sliding friction resistance is large and the parallel conjugate fiber is easy to crimp.
【００１５】本発明に用いられる複合繊維が２成分から
なる場合、第１成分と第２成分の複合比は、第１成分が
１０〜８０重量％、第２成分が９０〜２０重量％であ
り、好ましくは、第１成分が３０〜７０重量％、第２成
分が７０〜３０重量％であり、より好ましくは、第１成
分が４０〜６０重量％、第２成分が６０〜４０重量％で
ある。複合比は、紡糸時の樹脂の吐出比で制御される。When the composite fiber used in the present invention comprises two components, the composite ratio of the first component to the second component is 10 to 80% by weight of the first component and 90 to 20% by weight of the second component. Preferably, the first component is 30 to 70% by weight, the second component is 70 to 30% by weight, and more preferably, the first component is 40 to 60% by weight, and the second component is 60 to 40% by weight. is there. The composite ratio is controlled by the resin discharge ratio during spinning.
【００１６】本発明に用いられる複合繊維がｎ成分（ｎ
は３以上の整数）からなる多成分複合繊維の場合、これ
らの複合比は、第２成分が９０〜２０重量％、それ以外
の総成分が１０〜８０重量％であり、好ましくは、第２
成分が７０〜３０重量％、他の総成分が３０〜７０重量
％であり、より好ましくは、第２成分が６０〜４０重量
％、他の総成分が４０〜６０重量％である。The composite fiber used in the present invention has an n component (n
Is an integer of 3 or more), these composite ratios are such that the second component is 90 to 20% by weight and the other total components are 10 to 80% by weight.
The component is 70 to 30% by weight, the other total components are 30 to 70% by weight, more preferably the second component is 60 to 40% by weight, and the other total components are 40 to 60% by weight.
【００１７】第２成分はズレ防止の性能を有するため、
該成分が２０重量％未満の複合繊維で構成された布帛を
用いた衛生材料は、ズレ防止効果が低くなり、好ましく
ない。Since the second component has a performance of preventing displacement,
A sanitary material using a fabric composed of a composite fiber containing less than 20% by weight of this component is not preferable because the effect of preventing displacement is reduced.
【００１８】本発明に用いられる複合繊維の繊度は、特
に限定するものではなく、使用される樹脂の物性や繊維
の用途に応じて適宜の繊度とすればよいが、繊度は、１
〜１００Ｄ、好ましくは１．５〜３２Ｄ、より好ましく
は１．５〜１８Ｄである。１Ｄ未満では生産性が低く、
１００Ｄを越える場合には、均一な地合いのウエブが作
製できない等の不都合が生じる。The fineness of the composite fiber used in the present invention is not particularly limited, and may be an appropriate fineness according to the physical properties of the resin used and the use of the fiber.
-100D, preferably 1.5-32D, more preferably 1.5-18D. Below 1D, productivity is low,
If it exceeds 100D, inconveniences such as the inability to produce a web with a uniform texture occur.
【００１９】本発明に用いられる複合繊維を不織布化す
る方法としては、例えばカード法，エアーレイ法，抄紙
法が例示できる。また、本発明に用いられる複合繊維の
繊維長は、特に限定するものではなく、不織布製造法に
応じて適宜の繊維長とすればよい。例えば、湿式マシン
には３〜２０ｍｍ、スクリーン法によるエアーレイ装置
には３〜２０ｍｍ、ピッカーローター法によるエアーレ
イ装置には５〜１２８ｍｍ、カード機には２５〜１２８
ｍｍが好ましい。Examples of the method for converting the conjugate fiber used in the present invention into a nonwoven fabric include a card method, an air lay method, and a papermaking method. Further, the fiber length of the conjugate fiber used in the present invention is not particularly limited, and may be an appropriate fiber length according to a nonwoven fabric manufacturing method. For example, 3 to 20 mm for a wet machine, 3 to 20 mm for an air lay device using a screen method, 5 to 128 mm for an air lay device using a picker rotor method, and 25 to 128 mm for a card machine.
mm is preferred.
【００２０】本発明に用いられる複合繊維は、必要に応
じて単独または他の繊維と、混綿，混紡，混繊，交編，
交繊などにより、編織物，不織布，繊維成型品等の一次
製品とすることもできる。混綿する比率は、鞘芯型複合
繊維の場合には、該複合繊維が５０％以上が好ましく、
より好ましくは７０％以上である。並列型複合繊維の場
合は、該複合繊維が、６０％以上が好ましく、より好ま
しくは８０％以上である。The conjugate fiber used in the present invention may be used alone or with another fiber, if necessary, in the form of cotton blend, blend spinning, blended fiber, cross knitting,
It can also be used as a primary product such as a knitted fabric, a nonwoven fabric, or a fiber molded product by fiber mixing or the like. The mixing ratio is preferably 50% or more in the case of a sheath-core composite fiber,
It is more preferably at least 70%. In the case of a side-by-side composite fiber, the composite fiber is preferably at least 60%, more preferably at least 80%.
【００２１】得られたウエブは、スルーエア法，熱カレ
ンダーロール法，ニードルパンチ法，超音波融着法およ
び高圧水流法等の公知の不織布加工法により不織布とす
ることができ、これら不織布加工法の複数を組み合わせ
てもよい。熱カレンダーロールを用い熱融着させる場
合、不織布強力を向上させるためには、その熱圧着面積
率を高くすればよい。また、風合いを柔らかくするため
には、熱圧着面積率を低くすればよい。なお、熱圧着面
積率を１０〜３０％の範囲とすることにより、風合い及
び強力の両方が満足でき、最も好ましい。圧着面積率が
１０％未満では耐抜糸性や不織布強力が劣り、３０％を
越えると不織布のボリュ−ムが小さくなり、風合いが硬
くなっていく傾向にある。The obtained web can be formed into a nonwoven fabric by a known nonwoven fabric processing method such as a through-air method, a hot calender roll method, a needle punch method, an ultrasonic fusion method, and a high-pressure water flow method. A plurality may be combined. When heat-sealing using a heat calender roll, in order to improve the strength of the nonwoven fabric, the thermocompression bonding area ratio may be increased. In order to soften the texture, the area ratio of the thermocompression bonding may be reduced. In addition, by setting the thermocompression bonding area ratio in the range of 10 to 30%, both the feeling and the strength can be satisfied, which is the most preferable. If the compression area ratio is less than 10%, the pull-out resistance and the strength of the nonwoven fabric are inferior, and if it exceeds 30%, the volume of the nonwoven fabric tends to be small and the texture tends to be hard.
【００２２】本発明に用いられる複合繊維はスパンボン
ド法、メルトブロー法などによって得られる長繊維ウエ
ブとして用いることができる。この長繊維ウエブは上記
した不織布加工法を用いて不織布とすることができる。The conjugate fiber used in the present invention can be used as a long fiber web obtained by a spun bond method, a melt blow method or the like. This long fiber web can be made into a nonwoven fabric using the above-described nonwoven fabric processing method.
【００２３】本発明に用いられる布帛の目付けは、特に
制限はないが、約１０〜１００ｇ／ｍ2が好ましい。カ
ード法にてウエブを作製する場合には約１０〜１００ｇ
／ｍ2、湿式不織布として用いる場合には約１５〜８０
ｇ／ｍ2が好ましい。The basis weight of the fabric used in the present invention is not particularly limited, but is preferably about 10 to 100 g / m 2 . Approximately 10 to 100 g when producing a web by the card method
/ M 2 , about 15 to 80 when used as a wet nonwoven fabric
g / m 2 is preferred.
【００２４】本発明に用いられる布帛は、単層で用いる
だけでなく、複数を積層してもよく、また、単独で用い
るだけではなく、他の部材と積層した積層体として、各
種用途にも使用できる。このとき用いられる他の部材と
しては、不織布，織物，編物，紙状物，ＬＬＤＰＥ等の
フィルムが例示できる。これらを衛生材料の少なくとも
一部に用いることができる。また積層体の見かけ密度は
特に限定はないが、熱プレス加工により複数の不織布，
シート等と一体化を行う場合には、約０．０１７〜０．
１１ｇ／ｃｍ3が好ましい。The fabric used in the present invention may be used not only in a single layer but also in a plurality of layers, and may be used not only singly but also as a laminate laminated with other members for various uses. Can be used. Examples of other members used at this time include nonwoven fabric, woven fabric, knitted fabric, paper-like material, and films such as LLDPE. These can be used for at least a part of the sanitary material. The apparent density of the laminate is not particularly limited.
When integrated with a sheet or the like, about 0.017-0.
11 g / cm 3 is preferred.
【００２５】本発明に用いられた布帛は、さらに、必要
に応じてこれらを二次加工し、紙オムツ，生理用ナプキ
ン，おりもの専用シート，失禁用パッド，母乳パッド，
ペット用シート等の吸収性物品は勿論として、スカー
ト，ズボン等の衣料用、救急タンカの帆布，靴及びスリ
ッパのインナー等として用いることができる。また、ズ
レ防止性能は布地に対してのみでなく、皮膚及び髪に対
しても有効であり、さらに包帯及び帽子の滑り止めとし
ても有効である。つまり、ズレ防止性能が生かせるもの
であれば使用について何ら問題ない。The fabric used in the present invention is further subjected to secondary processing, if necessary, to form a disposable diaper, sanitary napkin, vagina exclusive sheet, incontinence pad, breast milk pad,
It can be used not only for absorbent articles such as pet sheets, but also for clothing such as skirts and trousers, canvas for emergency tankers, innerwear for shoes and slippers, and the like. The anti-shift performance is effective not only on fabrics but also on skin and hair, and is also effective as a non-slip of bandages and hats. That is, there is no problem in use as long as the displacement prevention performance can be utilized.
【００２６】[0026]
【実施例】以下本発明の実施例を用いて、以下にさらに
詳細に説明するが、本発明はこれら実施例に限定される
ものではない。また、繊維，不織布及びそれらから作製
された衛生材料の物性等を表１に記載した。EXAMPLES The present invention will be described in more detail below using examples of the present invention, but the present invention is not limited to these examples. In addition, Table 1 shows physical properties and the like of fibers, nonwoven fabrics and sanitary materials produced therefrom.
【００２７】本発明の衛生材料に使用される２成分から
なる複合繊維は、例えば、以下の工程により製造可能で
ある。芯成分及び鞘成分の樹脂を溶融し、例えば、ホー
ル数１００から３５０の複合紡糸口金より吐出させる。
この時、口金直下を空冷することにより未延伸糸を冷却
する。吐出量１００〜２００ｇ／分、引き取り速度４０
〜１３００ｍ／分で引き取ることにより、３Ｄから４０
０Ｄの未延伸糸を作製する。必要に応じて該未延伸糸を
常温から９０℃に加熱したロール間の速度を１対１．０
５から１対６の間に設定し延伸することにより、１Ｄな
いし１００Ｄの延伸糸を作製できる。カード機を利用
し、ウエブとする場合には、該延伸糸にタッチロールで
仕上剤を塗布したのち、ボックス型の捲縮加工機を通過
させ、捲縮を付与したトウを作製することが好ましい。
該トウは約１０％の水分を含んでいるので、乾燥機を用
い繊維が融着しない温度で乾燥する。押し切りタイプの
カッターを用いて、乾燥したトウを繊維長３ｍｍから１
２８ｍｍの範囲の一定の繊維長で切断する。また、湿式
抄紙等によりウエブとする場合には、該延伸糸に仕上剤
の塗布を行った後、無捲縮のまま、押し切りタイプのカ
ッターを用いて繊維長３ｍｍから２０ｍｍの範囲の一定
の繊維長で切断する。つぎに得られた複合繊維を用い、
湿式マシンまたはカード機またはエアーレイ装置を用い
てウエブ形成後、サクションドライヤー熱処理すること
により、繊維の交点が熱融着される。この熱処理は、サ
クションドライヤーの代わりに熱カレンダーロール等の
加熱装置を用いて行ってもよい。The bicomponent composite fiber used in the sanitary material of the present invention can be produced, for example, by the following steps. The resin of the core component and the sheath component is melted and discharged from, for example, a composite spinneret having 100 to 350 holes.
At this time, the undrawn yarn is cooled by air cooling just below the die. Discharge rate 100-200 g / min, take-off speed 40
By picking up at ~ 1300m / min, 3D to 40M
Make a 0D undrawn yarn. If necessary, the speed between the rolls in which the undrawn yarn was heated from room temperature to 90 ° C. was adjusted to 1 to 1.0.
By setting and stretching between 5 and 1: 6, a drawn yarn of 1D to 100D can be produced. When using a card machine and forming a web, it is preferable to apply a finishing agent to the drawn yarn with a touch roll, and then pass through a box-type crimping machine to produce a crimped tow. .
Since the tow contains about 10% moisture, it is dried using a dryer at a temperature at which the fibers do not fuse. Using a push-type cutter, dry the tow from a fiber length of 3 mm to 1
Cut at a constant fiber length in the range of 28 mm. When a web is formed by wet papermaking or the like, after applying a finishing agent to the drawn yarn, a fixed fiber having a fiber length in a range of 3 mm to 20 mm using a push-cut type cutter without crimping. Cut in length. Next, using the obtained composite fiber,
After forming the web using a wet machine, a card machine, or an air lay device, the intersection of the fibers is heat-sealed by heat treatment with a suction dryer. This heat treatment may be performed using a heating device such as a heat calender roll instead of a suction dryer.
【００２８】本実施例における脱落量と滑り摩擦抵抗の
定義と測定方法は以下のとおりである。 （１）脱落量 摩擦堅牢度測定機の固定サンプル側に、目付けが５０
（ｇ／ｍ2），サイズが５（ｃｍ）×１０（ｃｍ）の布
帛サンプルを、作動サンプル側に綿１００％のＴシャツ
を固定し、摩擦回数１０００回で測定を行った。測定後
に、布帛サンプルから脱落した繊維状物及び粉状物の重
量を測定した。この重量を脱落量と定義した。この値が
小さいほど、衛生材として使用した場合に脱落が小さ
く、下着を汚しにくいと判断した。 （２）滑り摩擦抵抗 目付けが５０（ｇ／ｍ2），サイズが１２（ｃｍ）×１
２（ｃｍ）の布帛サンプルを水平に設置された綿１００
％のＴシャツ上に置き、そのサンプルの上に重量が２８
０（ｇ），サイズが１０（ｃｍ）×１０（ｃｍ）の荷重
を乗せ、さらにこの布帛にテンションメーターをつけ、
水平方向に約２０ｃｍ／秒の速度で引っ張り、サンプル
が動いているときの平衡の力を滑り摩擦抵抗と定義し、
これを測定した。この値が大きいほど、滑り摩擦抵抗が
大きく、ズレ防止に対して有効であると判断した。The definition and measurement method of the falling-off amount and the sliding friction resistance in this embodiment are as follows. (1) Amount of shedding 50 pieces on the fixed sample side of the friction fastness measuring machine
(G / m 2 ), a cloth sample having a size of 5 (cm) × 10 (cm) was fixed to a T-shirt made of 100% cotton on the working sample side, and the measurement was performed at 1,000 times of friction. After the measurement, the weight of the fibrous material and powdery material dropped from the fabric sample was measured. This weight was defined as the shed amount. It was determined that the smaller the value, the smaller the shedding when used as a sanitary material and the less likely it is to stain the underwear. (2) Sliding friction resistance The basis weight is 50 (g / m 2 ) and the size is 12 (cm) × 1
A 2 (cm) cloth sample was placed on a horizontally placed cotton 100
% T-shirt and weigh 28% on the sample
0 (g), a load of size 10 (cm) × 10 (cm) is applied, and a tension meter is attached to the cloth.
The sample is pulled horizontally at a speed of about 20 cm / sec, and the equilibrium force when the sample is moving is defined as the sliding frictional resistance,
This was measured. It was determined that the larger this value was, the larger the sliding friction resistance was and the more effective it was in preventing displacement.
【００２９】実施例１ 第１成分として、ＭＦＲ＝１５ｇ／１０分（ＪＩＳ Ｋ
７２１０ 条件１４）のポリプロピレン、第２成分とし
て、ＭＩ＝１８ｇ／１０分（ＪＩＳ Ｋ７２１０ 条件
４）のエチレン−ブテンー１共重合ゴム（住友化学工業
（株）製：エスプレンＮ０３７７）を６対４の比で鞘芯
型複合紡糸口金より吐出し、さらに口金直下で空冷する
ことで１５Ｄの未延伸糸とした。次に得られた未延伸糸
を相対速度比１：３の６０℃熱ロール間で延伸し、６Ｄ
の延伸糸とし、さらにこの延伸糸にタッチロールで仕上
剤を塗布したのち、ボックス型の捲縮加工機を通過させ
て１インチ当たり１４山のジグザグ捲縮を付与したトウ
を作製した。トウの水分除去のために、実測温度７０℃
の乾燥機で乾燥したのち、押し切りタイプのカッターを
用いて、繊維長５１ｍｍのステープルを作製した。該ス
テープルをカード機で繊維ウエブとし、次にサクション
ドライヤーを使用して１００℃で３秒間加熱処理するこ
とにより、鞘成分のエチレン−ブテンー１共重合ゴムを
溶融接着させ、目付け２８ｇ／ｍ2，比容積６３ｃｍ3／
ｇの不織布を作製した。該繊維及び不織布の物性等を表
１に示した。Example 1 As the first component, MFR = 15 g / 10 min (JIS K
7210 Polypropylene of condition 14), ethylene-butene-1 copolymer rubber (manufactured by Sumitomo Chemical Co., Ltd .: Esplen N0377) having MI = 18 g / 10 min (JIS K7210 condition 4) as a second component in a ratio of 6: 4. And discharged from a sheath-core composite spinneret, and air-cooled immediately below the spinneret to obtain a 15D undrawn yarn. Next, the obtained undrawn yarn is drawn between hot rolls at 60 ° C. with a relative speed ratio of 1: 3,
After applying a finishing agent to the drawn yarn with a touch roll, the drawn yarn was passed through a box-type crimping machine to produce a tow having 14 zigzag crimps per inch. Measured temperature 70 ° C to remove water from tow
After drying with a dryer, a staple having a fiber length of 51 mm was produced using a push-cut type cutter. The staple was made into a fiber web by a carding machine, and then heat-treated at 100 ° C. for 3 seconds using a suction drier to melt-bond the sheath component ethylene-butene-1 copolymer rubber to a basis weight of 28 g / m 2 , Specific volume 63cm 3 /
g of nonwoven fabric was produced. Table 1 shows the physical properties and the like of the fiber and the nonwoven fabric.
【００３０】実施例２ 吐出条件のうち吐出量を変えた以外は実施例１と同様に
して、５Ｄの未延伸糸とし、同様に延伸を行い２Ｄの延
伸糸とした。この延伸糸に、湿式用分散剤を浸漬させた
後、押し切りタイプのカッターを用いて繊維長５ｍｍの
チョップを作製した。該チョップをタッピ抄紙機で抄紙
した後、１００℃の乾燥機で１０秒間加熱処理すること
により、鞘成分のエチレン−ブテンー１共重合ゴムを溶
融接着させ、目付け２０ｇ／ｍ2，比容積２１ｃｍ3／ｇ
の不織布を作製した。該繊維及び不織布の物性等を表１
に示した。Example 2 A 5D undrawn yarn was prepared in the same manner as in Example 1 except that the discharge amount was changed among the discharge conditions, and a drawing was performed in the same manner to obtain a 2D drawn yarn. After the wet dispersant was immersed in the drawn yarn, a chop having a fiber length of 5 mm was produced using a push-cut type cutter. After making the chop with a tappi paper machine, it was heat-treated in a drier at 100 ° C. for 10 seconds to melt-adhere the ethylene-butene-1 copolymer rubber as a sheath component, with a basis weight of 20 g / m 2 and a specific volume of 21 cm 3. / G
Was produced. Table 1 shows the physical properties and the like of the fiber and the nonwoven fabric.
It was shown to.
【００３１】実施例３ 第２成分として、ＭＩ＝７ｇ／１０分（ＪＩＳ Ｋ７２
１０ 条件４）のエチレン−プロピレン共重合ゴム（住
友化学工業（株）製：エスプレンＮ０４１６）を用い、
７対３の比で吐出させ、４５Ｄの未延伸糸，延伸時の熱
ロール温度を４０℃，１８Ｄの延伸糸とした以外は、実
施例１と同様の条件でステープルを作製した。該ステー
プルをカード機により繊維ウエブとした後、ニードルパ
ンチ加工を施こし、目付け６５ｇ／ｍ2，比容積２３ｃ
ｍ3／ｇの不織布を作製した。該繊維及び不織布の物性
等を表１に示した。Example 3 As the second component, MI = 7 g / 10 min (JIS K72)
10) Using ethylene-propylene copolymer rubber (condition: 4) (Esprene N0416 manufactured by Sumitomo Chemical Co., Ltd.)
A staple was produced under the same conditions as in Example 1 except that the yarn was discharged at a ratio of 7: 3, and a 45D undrawn yarn, a hot roll temperature of 40 ° C during drawing and a 18D drawn yarn were used. The staple was made into a fibrous web by a card machine, and then subjected to needle punching to give a basis weight of 65 g / m 2 and a specific volume of 23 c.
An m 3 / g nonwoven fabric was produced. Table 1 shows the physical properties and the like of the fiber and the nonwoven fabric.
【００３２】実施例４ 第１成分として、ＭＦＲ＝１０ｇ／１０分（ＪＩＳ Ｋ
７２１０ 条件１４）のポリプロピレン、第２成分とし
て、ＭＩ＝４．５ｇ／１０分（ＪＩＳ Ｋ７２１０ 条
件４）のエチレン−プロピレン共重合ゴム（住友化学工
業（株）製：エスプレンＶ０１１５）を用い、５対５の
比で鞘芯型複合紡糸口金より吐出し、水冷により冷却
し、２５０Ｄの未延伸糸を作製した。次に得られた未延
伸糸を相対速度比１：３の６０℃熱ロール間で延伸し、
タッチロールで仕上剤を塗布し、アニール後に巻取り、
モノフィラメントを作製した。整織機により該モノフィ
ラメントに５メッシュの平織りを行い、ネットを作製
し、次に１００℃のサクションドライヤーで３秒間加熱
処理することにより、鞘成分のエチレン−ブテンー１共
重合ゴムを溶融接着させ、目付け１０５ｇ／ｍ2，比容
積４５ｃｍ3／ｇの不織布を作製した。該繊維及び不織
布の物性等を表１に示した。Example 4 As the first component, MFR = 10 g / 10 min (JIS K
7210 Polypropylene of the condition 14), ethylene-propylene copolymer rubber (Esprene V0115 manufactured by Sumitomo Chemical Co., Ltd.) with MI = 4.5 g / 10 min (JIS K7210 condition 4) as the second component was used for 5 pairs. The mixture was discharged from a sheath-core composite spinneret at a ratio of 5 and cooled by water cooling to produce a 250D undrawn yarn. Next, the obtained undrawn yarn is drawn between hot rolls at 60 ° C. with a relative speed ratio of 1: 3,
Apply a finish with a touch roll, wind up after annealing,
A monofilament was produced. The monofilament is woven with a 5-mesh plain weave by a weaving machine to prepare a net, and then heat-treated with a suction dryer at 100 ° C. for 3 seconds to melt and bond the ethylene-butene-1 copolymer rubber of the sheath component. A nonwoven fabric of 105 g / m 2 and a specific volume of 45 cm 3 / g was produced. Table 1 shows the physical properties and the like of the fiber and the nonwoven fabric.
【００３３】実施例５ 第１成分として、ＭＦＲ＝１５ｇ／１０分（ＪＩＳ Ｋ
７２１０ 条件１４）のポリプロピレン、第２成分とし
て、ＭＩ＝４．５ｇ／１０分（ＪＩＳ Ｋ７２１０ 条
件４）のエチレン−ブテンー１共重合ゴム（住友化学工
業（株）製：エスプレンＶ０１１５）を用いること以外
は実施例１と同様の条件でステープルを作製した。カー
ド機を用い、該ステープルを繊維ウエブとした後、高圧
水流装置でウォータージェット加工を行い、目付け２６
ｇ／ｍ2，比容積１８ｃｍ3／ｇの不織布を作製した。該
繊維及び不織布の物性等を表１に示した。Example 5 As the first component, MFR = 15 g / 10 min (JIS K
7210 Polypropylene under the condition 14), except that as the second component, an ethylene-butene-1 copolymer rubber (manufactured by Sumitomo Chemical Co., Ltd .: Esplen V0115) having MI = 4.5 g / 10 min (JIS K7210 condition 4) is used. Produced staples under the same conditions as in Example 1. Using a card machine, the staples were made into a fiber web, and then subjected to water jet processing with a high-pressure water flow device to obtain a basis weight of 26.
g / m 2 , and a non-woven fabric having a specific volume of 18 cm 3 / g were produced. Table 1 shows the physical properties and the like of the fiber and the nonwoven fabric.
【００３４】実施例６ 第２成分として、ＭＩ＝２８ｇ／１０分（ＪＩＳ Ｋ７
２１０ 条件４）のエチレン−オクテンー１共重合ゴム
を用い、延伸時の熱ロール温度が８０℃であること以外
は実施例１と同様の条件でステープルを作製し、同様に
不織布を作製した。得られた不織布の目付けは、３０ｇ
／ｍ2，比容積は、５６ｃｍ3／ｇであった。該繊維及び
不織布の物性等を表１に示した。Example 6 As the second component, MI = 28 g / 10 min (JIS K7
210 Staples were produced under the same conditions as in Example 1 except that the ethylene-octene-1 copolymer rubber of Condition 4) was used and the hot roll temperature during stretching was 80 ° C., and a nonwoven fabric was produced in the same manner. The basis weight of the obtained nonwoven fabric is 30 g
/ M 2 , the specific volume was 56 cm 3 / g. Table 1 shows the physical properties and the like of the fiber and the nonwoven fabric.
【００３５】実施例７ ＭＩ＝１８ｇ／１０分（ＪＩＳ Ｋ７２１０ 条件４）
のエチレン−ブテンー１共重合ゴム（住友化学工業
（株）製：エスプレンＮ０３７７）とＭＩ＝０．７ｇ／
１０分（ＪＩＳ Ｋ７２１０ 条件４）のエチレン−プ
ロピレン共重合ゴム（住友化学工業（株）製：エスプレ
ン２０１）を５：５でブレンドしたものを第２成分とし
て用い、未延伸糸が４Ｄ、延伸糸が１８Ｄとした以外は
実施例３と同様の条件でステープルを作製した。カード
機により、該ステープルをウエブとし、これをさらに１
００℃、３秒間加熱処理し、鞘成分を溶融接着させ、目
付け２７ｇ／ｍ2，比容積５３ｃｍ3／ｇの不織布を作製
した。該繊維及び不織布の物性等を表１に示した。Example 7 MI = 18 g / 10 min (JIS K7210 condition 4)
Ethylene-butene-1 copolymer rubber (manufactured by Sumitomo Chemical Co., Ltd .: Esplen N0377) and MI = 0.7 g /
10 minutes (JIS K7210, condition 4), a blend of ethylene-propylene copolymer rubber (Esprene 201, manufactured by Sumitomo Chemical Co., Ltd.) at a ratio of 5: 5 was used as the second component, and the undrawn yarn was 4D and the drawn yarn was used. A staple was produced under the same conditions as in Example 3 except that the staple was changed to 18D. Using a card machine, the staples are turned into a web and
Heat treatment was performed at 00 ° C. for 3 seconds to melt and bond the sheath component, thereby producing a nonwoven fabric having a basis weight of 27 g / m 2 and a specific volume of 53 cm 3 / g. Table 1 shows the physical properties and the like of the fiber and the nonwoven fabric.
【００３６】実施例８ 第１成分として、ＩＶ(Inherent Viscosity)＝０．７
（ＪＩＳ Ｚ８８０３）のポリエチレンテレフタレート
を用い、１８Ｄの未延伸糸とし、ロール間の相対速度が
１対１．０５で延伸をし、１８Ｄの未延伸糸を作製した
こと以外は実施例１と同様の条件でステープルを作製し
た。カード機により、該ステープルをウエブとし、これ
をさらに１００℃、３秒間加熱処理することにより、鞘
成分を溶融接着させた、目付け３５ｇ／ｍ2，比容積６
５ｃｍ3／ｇの不織布を作製した。該繊維及び不織布の
物性等を表１に示した。Example 8 As a first component, IV (Inherent Viscosity) = 0.7
(JIS Z8803) Polyethylene terephthalate, 18D undrawn yarn, drawn at a relative speed between rolls of 1: 1.05 to produce an 18D undrawn yarn, the same as Example 1 Staples were produced under the conditions. The staple was made into a web by a card machine, and the staple was further heated at 100 ° C. for 3 seconds to melt and bond the sheath component. The basis weight was 35 g / m 2 and the specific volume was 6
A 5 cm 3 / g nonwoven fabric was produced. Table 1 shows the physical properties and the like of the fiber and the nonwoven fabric.
【００３７】実施例９ 並列型複合紡糸口金を用い、第１成分として、ＭＦＲ＝
１５ｇ／１０分（ＪＩＳ Ｋ７２１０ 条件１４）のポ
リプロピレン、第２成分として、ＭＩ＝１８ｇ／１０分
（ＪＩＳ Ｋ７２１０ 条件４）のエチレン−ブテンー
１共重合ゴム（住友化学工業（株）製：エスプレンＮ０
３７７）を５対５の比で吐出させた以外は、実施例１と
同様の条件でステープルを作製した。カード機により該
ステープルをウエブとし、１００℃、３秒間加熱処理す
ることにより、鞘成分を溶融接着させ、目付け２４ｇ／
ｍ2，比容積７０ｃｍ3／ｇの不織布を作製した。該繊維
及び不織布の物性等を表１に示した。Example 9 Using a parallel-type composite spinneret, MFR =
15 g / 10 min (JIS K7210 condition 14) polypropylene, as a second component, MI = 18 g / 10 min (JIS K7210 condition 4) ethylene-butene-1 copolymer rubber (Supremo Chemical Industries, Ltd .: Espleno N0)
A staple was produced under the same conditions as in Example 1 except that 377) was discharged at a ratio of 5: 5. The staples were made into a web by a card machine and heat-treated at 100 ° C. for 3 seconds so that the sheath component was melt-adhered.
A nonwoven fabric having an m 2 and a specific volume of 70 cm 3 / g was produced. Table 1 shows the physical properties and the like of the fiber and the nonwoven fabric.
【００３８】比較例１ 第２成分として、ＭＩ＝１６ｇ／１０分（ＪＩＳ Ｋ７
２１０ 条件４）のポリエチレンを用いた以外は実施例
１と同様の条件でステープルを作製した。カード機によ
り該ステープルをウエブとし、次にサクションドライヤ
ーにより１３８℃、３秒間加熱処理することで、鞘成分
のポリエチレンを溶融接着させ、目付け２９ｇ／ｍ2，
比容積５８ｃｍ3／ｇの不織布とした。該不織布の表面
に混合樹脂液（直径１ｍｍ〜２ｍｍのスポンジ状ゴムを
ポリビニルアルコールに３０重量％分散させた液）を１
ｍ2当たり３０ｇの割合で噴霧し、さらに１０分間、１
２０℃で乾燥させ、ズレ防止処理を施し、不織布を作製
した。該繊維及び不織布の物性等を表１に示した。Comparative Example 1 As a second component, MI = 16 g / 10 min (JIS K7)
210 Staples were produced under the same conditions as in Example 1 except that polyethylene of Condition 4) was used. The staple was made into a web by a card machine, and then heated at 138 ° C. for 3 seconds by a suction dryer to melt and bond the sheath component polyethylene to give a basis weight of 29 g / m 2 ,
The non-woven fabric had a specific volume of 58 cm 3 / g. A mixed resin liquid (a liquid in which sponge-like rubber having a diameter of 1 mm to 2 mm was dispersed in polyvinyl alcohol at 30% by weight) was placed on the surface of the nonwoven fabric.
sprayed at a rate of m 2 per 30g, a further 10 min, 1
It was dried at 20 ° C. and subjected to a displacement prevention treatment to produce a nonwoven fabric. Table 1 shows the physical properties and the like of the fiber and the nonwoven fabric.
【００３９】実施例１０ 市販のナプキンからバックシートを除去し、透湿フィル
ムを露出させ、さらにこの部分に、実施例１で作製した
不織布を熱融着させ、ナプキンを製造し、本発明の衛生
材料とした。このナプキンは、下着に対してズレ防止の
効果が大きく、接着テープなしでもズレ，ヨレがない優
れたものであった。Example 10 The backsheet was removed from a commercially available napkin, the moisture-permeable film was exposed, and the nonwoven fabric prepared in Example 1 was heat-sealed to this portion to produce a napkin. Material. This napkin was highly effective in preventing displacement of underwear, and was free from displacement and slippage without an adhesive tape.
【００４０】実施例１１ 接着テープ付きパルプシート、透湿フィルム、吸収体及
び熱接着性不織布からなる市販の母乳パッドの接着テー
プ付きパルプシートを除去し、透湿フィルムを露出さ
せ、さらにこの部分に、実施例１で作製した不織布を積
層し、これを、ブラカップ型に加圧・成形して母乳パッ
ドを作製した。ズレ防止効果は、市販の母乳パッドと装
着して比較した。結果、市販品と比べて軽量で、なおか
つ、ズレ防止の効果もあり、優れたものであった。Example 11 A pulp sheet with an adhesive tape of a commercially available breast milk pad composed of a pulp sheet with an adhesive tape, a moisture-permeable film, an absorber and a heat-adhesive nonwoven fabric was removed, and the moisture-permeable film was exposed. Then, the nonwoven fabric prepared in Example 1 was laminated, and this was pressed and molded into a bra cup mold to prepare a breast milk pad. The effect of preventing displacement was compared with a commercially available breast milk pad. As a result, the product was lighter than a commercial product, and had an effect of preventing displacement, and was excellent.
【００４１】実施例１２ 接着テープ付きパルプシート及び透湿フィルムを除去
し、吸収体を露出させ、さらにこの部分に実施例２で作
製した湿式不織布を積層し、実施例１２と同様の条件で
母乳パッドを作製した。少量の母乳であれば母乳の滲み
出しがなく、ムレにくい母乳パッドであった。Example 12 The pulp sheet with the adhesive tape and the moisture-permeable film were removed to expose the absorber, and the wet nonwoven fabric prepared in Example 2 was laminated on this portion, and breast milk was produced under the same conditions as in Example 12. Pads were made. With a small amount of breast milk, there was no exudation of breast milk, and the breast milk pad was hard to stuffy.
【００４２】比較例２ 市販のナプキンからバックシートを除去し、透湿フィル
ムを露出させ、さらにこの部分に、比較例１で作製した
不織布を熱融着させ、ナプキンを製造し、本発明の衛生
材料とした。このナプキンは、下着に対してズレ防止の
効果は認められたものの、若干滑る部分もあるためヨレ
が生じた。さらに、不織布の表面に付着しているスポン
ジ状ゴムが脱落し、下着に付着する問題も認められた。
ナプキンとしては不適であった。Comparative Example 2 The backsheet was removed from a commercially available napkin, the moisture-permeable film was exposed, and the nonwoven fabric prepared in Comparative Example 1 was heat-sealed to this portion to produce a napkin. Material. Although this napkin was effective in preventing slippage of the underwear, it was twisted due to some slippage. Further, there was also a problem that the sponge-like rubber adhered to the surface of the nonwoven fabric fell off and adhered to the underwear.
It was unsuitable as a napkin.
【００４３】[0043]
【表１】 [Table 1]
【００４４】[0044]
【発明の効果】本発明の衛生材料は、エチレン−α−オ
レフィン（炭素数３〜８）共重合ゴムを接着成分として
用いた布帛を衛生材料の少なくとも一部に用いることに
より、布類に対するズレ防止性能が均一であり、さらに
使用時に素材が脱落しないズレ防止性能に優れた衛生材
料が得られる。As described above, the sanitary material of the present invention is characterized in that a fabric using ethylene-α-olefin (C3 to C8) copolymer rubber as an adhesive component is used for at least a part of the sanitary material, thereby causing a deviation from the cloth. It is possible to obtain a sanitary material having a uniform prevention performance and an excellent slip prevention performance in which the material does not fall off during use.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｂ３２Ｂ 5/02 Ａ４１Ｂ 13/02 Ｆ Ｄ０１Ｆ 8/06 Ａ６１Ｆ 13/18 ３２０ // Ａ４１Ｃ 3/04 ３５０ ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 6 Identification code FI B32B 5/02 A41B 13/02 F D01F 8/06 A61F 13/18 320 // A41C 3/04 350
Claims (6)
分が（Ａ）炭素数３〜８のα−オレフィン単位から選ば
れた少なくとも１種を１０〜６０重量％と、（Ｂ）エチ
レン単位を９０〜４０重量％含む共重合ゴムである、少
なくとも２成分からなる複合繊維で主に構成された布帛
を少なくとも一部に用いた衛生材料。The first component is a thermoplastic resin, and the second component is (A) 10 to 60% by weight of at least one selected from α-olefin units having 3 to 8 carbon atoms; A sanitary material comprising at least a part of a fabric mainly composed of a composite fiber comprising at least two components, which is a copolymer rubber containing 90 to 40% by weight of ethylene units.
分が（Ａ）炭素数３〜８のα−オレフィン単位から選ば
れた少なくとも１種を１０〜６０重量％と、（Ｂ）エチ
レン単位を９０〜４０重量％含む共重合ゴムである、少
なくとも２成分からなる複合繊維で主に構成された布帛
と、他の不織布，編物，織物，紙状物，フィルムから選
ばれた少なくとも１種との積層体である請求項１に記載
の衛生材料。2. The composition according to claim 1, wherein the first component is a thermoplastic resin, and the second component is (A) 10 to 60% by weight of at least one selected from α-olefin units having 3 to 8 carbon atoms; A fabric mainly composed of at least two-component composite fiber, which is a copolymer rubber containing 90 to 40% by weight of ethylene units, and at least one selected from other nonwoven fabrics, knits, woven fabrics, paper-like materials, and films The sanitary material according to claim 1, which is a laminate with a seed.
２成分を鞘成分とする鞘芯型複合繊維である請求項１若
しくは２の何れかに記載の衛生材料。3. The sanitary material according to claim 1, wherein the conjugate fiber is a sheath-core conjugate fiber having a first component as a core component and a second component as a sheath component.
項１若しくは２の何れかに記載の衛生材料。4. The sanitary material according to claim 1, wherein the conjugate fiber is a side-by-side conjugate fiber.
脂とし、鞘成分として（Ａ）炭素数３または４のα−オ
レフィン単位から選ばれた少なくとも１種を１０〜６０
重量％と、（Ｂ）エチレン単位を９０〜４０重量％含む
共重合ゴムとする鞘芯型複合繊維である請求項１〜４の
何れかに記載の衛生材料。5. A composite fiber comprising a core component comprising a polypropylene resin and a sheath component comprising (A) at least one kind selected from α-olefin units having 3 or 4 carbon atoms of 10 to 60.
The sanitary material according to any one of claims 1 to 4, which is a sheath-core composite fiber made of a copolymer rubber containing 90 to 40% by weight of an ethylene unit (B) in an amount of 90% by weight.
請求項１〜５の何れかに記載の衛生材料。6. The sanitary material according to claim 1, which is used for a back sheet of an absorbent article.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9214004A JPH1193054A (en) | 1997-07-23 | 1997-07-24 | Sanitary material |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21247197 | 1997-07-23 | ||
| JP9-212471 | 1997-07-23 | ||
| JP9214004A JPH1193054A (en) | 1997-07-23 | 1997-07-24 | Sanitary material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1193054A true JPH1193054A (en) | 1999-04-06 |
Family
ID=26519250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9214004A Withdrawn JPH1193054A (en) | 1997-07-23 | 1997-07-24 | Sanitary material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1193054A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002146663A (en) * | 2000-11-02 | 2002-05-22 | Mitsui Chemicals Inc | Soft nonwoven fabric |
| US11839528B2 (en) | 2018-10-22 | 2023-12-12 | Medline Industries, Lp | Drypad with rapid absorption and liquid removal |
-
1997
- 1997-07-24 JP JP9214004A patent/JPH1193054A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002146663A (en) * | 2000-11-02 | 2002-05-22 | Mitsui Chemicals Inc | Soft nonwoven fabric |
| JP4544725B2 (en) * | 2000-11-02 | 2010-09-15 | 三井化学株式会社 | Flexible nonwoven fabric |
| US11839528B2 (en) | 2018-10-22 | 2023-12-12 | Medline Industries, Lp | Drypad with rapid absorption and liquid removal |
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