JPS6334661Y2 - - Google Patents
Info
- Publication number
- JPS6334661Y2 JPS6334661Y2 JP1980102587U JP10258780U JPS6334661Y2 JP S6334661 Y2 JPS6334661 Y2 JP S6334661Y2 JP 1980102587 U JP1980102587 U JP 1980102587U JP 10258780 U JP10258780 U JP 10258780U JP S6334661 Y2 JPS6334661 Y2 JP S6334661Y2
- Authority
- JP
- Japan
- Prior art keywords
- nonwoven fabric
- fibers
- facing
- fiber
- amount
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000835 fiber Substances 0.000 claims description 87
- 239000004745 nonwoven fabric Substances 0.000 claims description 41
- 239000000853 adhesive Substances 0.000 claims description 27
- 230000001070 adhesive effect Effects 0.000 claims description 27
- 239000002131 composite material Substances 0.000 claims description 8
- 229920000728 polyester Polymers 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 239000010410 layer Substances 0.000 description 24
- 238000002844 melting Methods 0.000 description 13
- 230000008018 melting Effects 0.000 description 13
- 239000007788 liquid Substances 0.000 description 11
- -1 polypropylene Polymers 0.000 description 11
- 239000011230 binding agent Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000004743 Polypropylene Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 229920001155 polypropylene Polymers 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 4
- 229920000297 Rayon Polymers 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 239000002964 rayon Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 230000001788 irregular Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000012510 hollow fiber Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000035935 pregnancy Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Medicinal Preparation (AREA)
- Nonwoven Fabrics (AREA)
Description
本考案は衛生材料の外層を被覆するフエーシン
グとくに不織布製フエーシングとりわけフエーシ
ング表面の毛羽を極力制御したフエーシングに関
するものである。
今日、おむつ、生理用ナプキン、お産パツド、
手術用吸血帯などの衛生材料のフエーシングとし
て不織布が多用されていることは周知である。そ
して、かかるフエーシングの要求性能としては衛
生材料の形態保持が良好なことはもちろんのこと
液の通過性（吸液性）に優れ使用者の膚に接する
部分が柔軟であることが求められている。さら
に、最近とくに望まれてきた性能の一つとしてフ
エーシングの繊維毛羽が使用者の膚につかないこ
とがあり、そのためにフエーシングに粉末状接着
剤や接着性繊維を混用する試みが成されつつあ
る。その試みは、単一の層からなる不織布製フエ
ーシング全体に接着性成分をほぼ均一に混合する
ものであり、この方法によるとフエーシング表面
の毛羽は一応押さえることはできるが、表面毛羽
を極力押さえんとすると混合すべき接着性成分の
量が多くならざるを得ないので、このことはフエ
ーシングの感触を硬いものとすることに通ずる。
そして極端な場合には、毛羽はほぼ完全に押える
ことはできたが吸液性が低下してしまつたという
幣害さえ出てくる。本考案は、従来技術に見られ
るフエーシング本来の性能低下を招かずして表面
毛羽を極力押さえることに成功したものであつ
て、以下のような構成から成るものである。
本考案は、２層以上の不織布の一体的積層から
なり、各層の不織布は接着性成分を粉末状でなく
繊維状として含有し、かつ当該繊維状の接着性成
分による溶融によつて不織布を形成する主体繊維
（被接着繊維）が部分的に接合され、しかもかか
る接合（接着）された領域の量がフエーシングの
最上層（すなわち使用者の膚に当る部分）が大で
あることを特徴とするフエーシングに関するもの
であり、かかるフエーシングは最上層の不織布中
に混合すべき接着性繊維の量を他の層の不織布中
に存在するそれより多くし、これらを積層したの
ちに接着性繊維の融点より10℃低い温度以上で主
体繊維の軟化点以下に熱処理することによつて容
易に得ることができる。かかる熱処理手段として
は熱ローラーによる圧着やいわゆるエンボスロー
ラーによる圧着等がある。
本考案における接着性成分が繊維状であること
の必要性は接着後の不織布の嵩高性を維持させん
とするためであつて、粉末状接着剤であると接着
部分が平担化しやすく不織布全体に拡がり易いの
で、得られるフエーシングとして嵩高性に劣り硬
くなりがちなので本考案の多層不織布積層フエー
シングにあつては好ましくない。
本考案のフエーシングは多層とくに３層以上の
不織布が一体的に積層されたものが好ましく、た
とえば５層の不織布が一体的に積層されたものも
好適であるが、以下の説明においては便宜上３層
不織布の積層フエーシングを以つて説明する。
まず不織布を形成する主体繊維はフエーシング
の用途によつて選択されるが、多くの用途に適用
可能のフエーシングという見方からするとそれは
レーヨン繊維（260〜300℃で着色分解）やポリエ
ステル繊維（融点255〜260℃）、ポリプロピレン
繊維（融点165〜173℃）であることが望ましい。
とりわけ、ポリエステル繊維あるいはポリプロピ
レン繊維を主体繊維とすることが表面毛羽の抑制
効果のうえで好ましい。主体繊維の繊維長は10〜
50mm程度の短繊維でも長繊維でも構わないし、繊
度は通常のデニール範囲である１〜7d程度、繊
維の断面形状は円形、異形、中空形のいづれでも
よく、とくに嵩高性に優れたフエーシングを得ん
とする場合には異形や中空形の主体繊維であれば
よく、そして、主体繊維は各層において必づしも
同じ繊維である必要はなく、たとえば最上層の主
体繊維は他層のそれより細繊度にして吸水性に優
れているものであり、中間層、最下層のそれはフ
エーシングとしての嵩高性やいつたん吸液した液
の逆流が少ないことをねらいとしてより太繊度で
異形や中空繊維とすることが望ましい。不織布の
目付としては、積層後のフエーシングの目付とし
ては約12〜25ｇ／m2が理想的である。また、主体
繊維はフエーシングの用途に応じて親水性や撥水
性の油剤を付与したものであつても構わない。
一方、接着性繊維すなわちバインダー繊維とし
ては主体繊維と熱溶融挙動を異にするものであつ
て主体繊維の軟化点以下で溶融するものであれば
よく、たとえば主体繊維がポリエステル繊維だと
する場合にはバインダー繊維としてはポリプロピ
レン繊維（融点165〜173℃）でも構わないし、他
成分を10モル％程度共重合したポリエステル繊維
としてイソフタール酸変性ポリエステル繊維（融
点約230〜235℃）でも構わない。本考案の実施に
おいて望ましい主体繊維の軟化点とバインダー繊
維の融点間の温度差は工程通過性の点から言つて
10℃はあるほうが好ましい。バインダー繊維とし
ては上述の単独重合低融点繊維、共重合繊維のほ
かに延伸を全く施さないか（未延伸）あるいはわ
づかに施した（部分延伸）繊維でも構わないので
あつて、たとえば未延伸や部分延伸ポリエステル
繊維（融点150〜230℃）を用いることもできる。
本考案におけるバインダー繊維としてもつとも好
ましいのは混合紡糸繊維や複合紡糸繊維であつ
て、とくに島成分（溶融後においても不織布中に
残る）の数が１〜数本のこれら繊維であることが
望ましく、これら繊維をバインダー繊維として用
いて海成分を溶融させた場合に溶融ポリマー成分
は溶融しない島成分に沿つて不織布主体繊維に接
合するので、バインダー繊維全体が溶融し接合す
る場合に比して形態安定効果と毛羽伏せ効果に優
れている。ここで、複合紡糸繊維であるほうが好
適であつて、わけても単独の島成分が海成分（溶
融するポリマー）によつて偏心的に包囲された偏
心型複合繊維やバイメタル型に複合した繊維が熱
接着の操作性や毛羽伏せ効果から言つて好まし
い。
本考案において積層前の各不織布中に混合すべ
き接着性繊維の量は、最上層となるべき不織布中
の接着性繊維の混合量は他の層中に混合されるそ
れより多いことが必要であり、好ましくは1.3倍
以上とくに1.5倍以上であることがフエーシング
本来の諸性能をすべて満足した上で顕著な毛羽伏
せ効果があるので望ましい。ここで、最上層不織
布中の接着性繊維の量を他層のそれより多くした
のはフエーシング表面の毛羽を極力押さえんとし
たためである。たとえば、３層積層フエーシング
とすると最上層の不織布は主体繊維55％：接着性
繊維45％、中間、下層の不織布はともに70％：30
％のごとくである。
つぎに、本考案のフエーシング作製に当つて
は、前述の接着性繊維を不織布を形成する主体繊
維に適量混合し、これを複数枚一体的に積層した
のち熱処理に供するものであるが、多層不織布の
一体的積層の仕方としては水や空気等の流体によ
る絡合やニードルによる機械的絡合が可能である
が、フエーシングとして用いられるため低目付で
あることから前者の絡合がより一般的である。一
体的に積層された多層不織布は、主体繊維と接着
性繊維の有する熱的特性に合わせて後者だけを溶
融させる条件下に熱処理されるが、たとえば主体
繊維がレーヨン、接着性繊維が偏心複合繊維（島
成分：ポリプロピレン＝軟化点140〜160℃、海成
分：ポリエチレン＝融点125〜135℃）である場合
の前記の３層積層不織布にあつては130℃、0.1秒
程度処理することによつて複合繊維の海成分たる
ポリエチレンは溶融し、島成分たるポリプロピレ
ン繊維と主体繊維であるレーヨンに接合し、本考
案にかかるフエーシングが得られる。第１図は３
層の不織布の積層からなる本考案のフエーシング
の表面を模式的に示す平面図であるが、同図にお
いて主体繊維である１は主として繊維相互の絡合
点において接着性繊維２の融着によつて接合され
ている。かかる接合量は中層、下層におけるそれ
らより多いことが本考案フエーシングの最大の特
徴である。そして、本考案フエーシングはこれに
よつて表面毛羽が押さえられているのである。
本考案にかかるフエーシングによるとフエーシ
ング本来の要求される諸性能である衛生材料の形
態保持性や吸液性（ストライクスルー）はもとよ
り、本考案のねらいとしたフエーシング表面の毛
羽伏せおよびいつたん吸液後にフエーシング表面
に逆流してくる液の量すなわち逆流量が少ないこ
と（膚に当るために逆流量は少ないほどよい）も
特徴として具備し、とくに主体繊維として異形や
中空形繊維を用いた場合には嵩高性の大きいフエ
ーシングが得られることがわかつた。
なお、本発明で用いている前記の液体逆流量の
測定は以下のようにして求められる。プラスチツ
ク板上に目付50ｇ／m2の樹脂接合レーヨン不織布
（クラレチコピー株式会社製キーパツクカウン
タークロス）20枚を積層載置し、その上に測定さ
せるべきサンプル不織布を１枚置く。そして、サ
ンプル不織布上に内径29mmのガラス円筒を乗せて
円筒内へ分液ロートから20c.c.の水を注ぎ、20枚の
不織布に吸収させる。ついで、円筒を取除き円筒
に代えて、プラスチツクにポリエチレン発泡シー
トを貼合わせた直径78mmの円板をシート面をサン
プル不織布側にして載置し、荷重25ｇ／cm2下に３
分間放置する。ついで、円板と荷重を取除いたの
ち、合計重量約10ｇに予め正秤された直径55mmの
紙（東洋紙株式会社製の製品No.5C）をサン
プル上に載置し荷重25ｇ／cm2下に２分間放置し、
除重後の紙の重量増加分を液体逆流量（ｇ／
cm2）として求める。
本考案は衛生材料のフエーシングに関するもの
であるので目付は前述のように約30ｇ／m2以下の
ものを対象とするが、本考案のかかる考え方をよ
り高目付不織布へ応用することも可能であり、た
とえばフイルター用途の不織布としては適用でき
る。
以下に本考案を比較例と対比しつつ諸効果につ
いて第１表に具体的に説明する。
各例において用いた主体繊維（主）はポリエス
テル繊維、接着性繊維（接）は前述のポリプロピ
レンとポリエチレンの偏心複合繊維であり、実施
例１〜２、比較例１〜２における主体繊維は円形
中実繊維、実施例３および比較例３のそれはＴ形
の異形断面繊維、比較例４〜６のそれは円形中実
繊維である。
The present invention relates to a facing for covering the outer layer of a sanitary material, particularly a facing made of a nonwoven fabric, and particularly a facing in which fluff on the surface of the facing is controlled as much as possible. Today, diapers, sanitary napkins, maternity pads,
It is well known that nonwoven fabrics are frequently used as facings for sanitary materials such as surgical blood-sucking belts. The required performance of such facings is not only that the sanitary material retains its shape well, but also that it has excellent liquid permeability (liquid absorption) and is flexible in the part that comes into contact with the user's skin. . Furthermore, one of the properties that has been particularly desired in recent years is that the fiber fuzz of the facing does not come into contact with the user's skin, and for this reason, attempts are being made to mix powdered adhesives and adhesive fibers with the facing. The attempt was to mix an adhesive component almost uniformly over the entire nonwoven facing made of a single layer. Although this method can suppress the fuzz on the surface of the facing, it is difficult to suppress the surface fuzz as much as possible. In this case, the amount of adhesive component to be mixed must be increased, which leads to the facing having a hard feel.
In extreme cases, even though the fuzz can be suppressed almost completely, the liquid absorbency is reduced. The present invention has succeeded in suppressing surface fluff as much as possible without deteriorating the inherent performance of facings seen in the prior art, and has the following configuration. The present invention consists of an integral laminate of two or more layers of nonwoven fabric, each layer of nonwoven fabric contains an adhesive component in the form of fibers rather than powder, and the nonwoven fabric is formed by melting with the fibrous adhesive component. The main fibers (bonded fibers) are partially bonded, and the bonded (adhered) area is large in the uppermost layer of the facing (i.e., the part that contacts the user's skin). It concerns facings, in which the amount of adhesive fibers to be mixed in the top layer of nonwoven fabric is greater than that present in the other layers of nonwoven fabrics, and after laminating these, the amount of adhesive fibers to be mixed is greater than the melting point of the adhesive fibers. It can be easily obtained by heat treatment at a temperature 10°C lower or higher to below the softening point of the main fiber. Examples of such heat treatment means include compression using a hot roller and compression using a so-called embossing roller. The need for the adhesive component in the present invention to be fibrous is to maintain the bulkiness of the nonwoven fabric after bonding, and powdered adhesives tend to flatten the bonded area and the entire nonwoven fabric. This is not preferred in the multilayer nonwoven fabric laminated facing of the present invention because the resulting facing tends to be poor in bulk and hard. The facing of the present invention preferably has multiple layers, especially three or more layers of nonwoven fabric laminated integrally.For example, a facing with five layers of nonwoven fabric integrally laminated is also suitable, but in the following description, for convenience, three layers of nonwoven fabric are laminated. A laminated facing of nonwoven fabric will be explained. First, the main fibers that form the nonwoven fabric are selected depending on the application of the facing, but from the viewpoint of facings that can be applied to many uses, they are rayon fiber (color decomposition at 260 to 300℃) and polyester fiber (melting point 255 to 300℃). 260°C) and polypropylene fibers (melting point 165-173°C).
In particular, it is preferable to use polyester fiber or polypropylene fiber as the main fiber in view of the effect of suppressing surface fuzz. The fiber length of the main fiber is 10~
It does not matter whether it is a short fiber of about 50 mm or a long fiber, the fineness is in the normal denier range of about 1 to 7 d, and the cross-sectional shape of the fiber can be circular, irregular, or hollow, and a facing with excellent bulk can be obtained. In the case where the main fiber is deformed or hollow, the main fiber does not necessarily have to be the same in each layer; for example, the main fiber in the top layer may be finer than that in the other layers. It has excellent water absorbency in terms of fineness, and the middle and bottom layers are made of thicker fineness and irregularly shaped or hollow fibers to provide bulk as a facing and to reduce backflow of absorbed liquid. This is desirable. The ideal basis weight of the nonwoven fabric is about 12 to 25 g/m 2 for the facing after lamination. Further, the main fiber may be coated with a hydrophilic or water-repellent oil agent depending on the application of the facing. On the other hand, adhesive fibers, i.e., binder fibers, need only have a thermal melting behavior different from that of the main fibers and melt at a temperature below the softening point of the main fibers. For example, when the main fibers are polyester fibers, The binder fiber may be polypropylene fiber (melting point: 165-173°C), or the polyester fiber copolymerized with about 10 mol % of other components may be isophthalic acid-modified polyester fiber (melting point: about 230-235°C). In implementing the present invention, the temperature difference between the softening point of the main fiber and the melting point of the binder fiber is determined from the viewpoint of process passability.
A temperature of 10°C is preferable. In addition to the above-mentioned homopolymerized low melting point fibers and copolymerized fibers, binder fibers may also be fibers that are not stretched at all (unstretched) or slightly stretched (partially stretched). Partially drawn polyester fibers (melting point 150-230°C) can also be used.
The binder fibers in the present invention are preferably mixed spun fibers or composite spun fibers, and it is particularly desirable that these fibers have one to several island components (which remain in the nonwoven fabric even after melting). When these fibers are used as binder fibers and the sea component is melted, the molten polymer component is joined to the nonwoven fabric main fiber along the unmelted island component, so the shape is more stable than when the entire binder fibers are melted and joined. Excellent effect and fluffing effect. Here, composite spun fibers are more suitable, especially eccentric composite fibers in which a single island component is eccentrically surrounded by a sea component (melting polymer), and bimetallic composite fibers that are thermally bonded. It is preferable from the viewpoint of operability and fluffing effect. In the present invention, the amount of adhesive fibers to be mixed in each nonwoven fabric before lamination is such that the amount of adhesive fibers mixed in the nonwoven fabric that is to be the top layer must be greater than that mixed in the other layers. The ratio is preferably 1.3 times or more, particularly 1.5 times or more, since this satisfies all the inherent properties of facing and has a remarkable fluffing effect. Here, the amount of adhesive fibers in the top layer nonwoven fabric was made larger than that in the other layers in order to suppress fuzz on the facing surface as much as possible. For example, in a three-layer laminated facing, the top layer's nonwoven fabric is 55% main fiber: 45% adhesive fiber, and the middle and lower nonwoven fabrics are both 70%: 30%.
It is like %. Next, in producing the facing of the present invention, an appropriate amount of the above-mentioned adhesive fiber is mixed with the main fiber forming the nonwoven fabric, a plurality of these are integrally laminated, and then subjected to heat treatment. It is possible to integrally laminate them by entanglement with fluids such as water or air, or mechanical entanglement with needles, but the former entanglement is more common because it is used as a facing and has a low basis weight. be. The integrally laminated multilayer nonwoven fabric is heat-treated under conditions that melt only the latter in accordance with the thermal properties of the main fibers and the adhesive fibers. For example, when the main fibers are rayon and the adhesive fibers are eccentric composite fibers, (Island component: polypropylene = softening point 140 to 160°C, sea component: polyethylene = melting point 125 to 135°C) The above three-layer laminated nonwoven fabric is treated at 130°C for about 0.1 seconds. Polyethylene, which is the sea component of the composite fiber, is melted and bonded to the polypropylene fiber, which is the island component, and the rayon, which is the main fiber, to obtain the facing according to the present invention. Figure 1 is 3
FIG. 2 is a plan view schematically showing the surface of the facing of the present invention, which is made of a laminated layer of nonwoven fabric. It is joined together. The greatest feature of the facing of the present invention is that the amount of bonding is greater than that in the middle and lower layers. This suppresses surface fuzz in the facing of the present invention. According to the facing of the present invention, not only the shape retention of sanitary materials and liquid absorption (strike-through), which are the various performances originally required for facing, but also the fluffing and liquid absorption of the facing surface, which are the aims of the present invention. Another feature is that the amount of liquid that later flows back to the facing surface, that is, the amount of backflow is small (the smaller the amount of backflow is, the better because it hits the skin), especially when irregular or hollow fibers are used as the main fibers. It was found that facings with high bulkiness could be obtained. Note that the measurement of the liquid backflow amount used in the present invention is determined as follows. 20 sheets of resin-bonded rayon nonwoven fabric (keypack counter cloth manufactured by Kurarechi Copy Co., Ltd.) with a basis weight of 50 g/m 2 are stacked on a plastic board, and one sample nonwoven fabric to be measured is placed on top of this. Then, a glass cylinder with an inner diameter of 29 mm is placed on top of the sample nonwoven fabric, and 20 c.c. of water is poured into the cylinder from a separating funnel, and the water is absorbed into the 20 nonwoven fabrics. Next, the cylinder was removed and replaced with a 78 mm diameter disk made by laminating a polyethylene foam sheet onto plastic, with the sheet surface facing the sample nonwoven fabric, and the cylinder was placed under a load of 25 g/cm 2 for 3.
Leave for a minute. Next, after removing the disk and the load, a piece of paper with a diameter of 55 mm (Product No. 5C manufactured by Toyo Paper Co., Ltd.), weighed in advance to give a total weight of approximately 10 g, was placed on the sample, and a load of 25 g/cm 2 was placed on the sample. Leave it under for 2 minutes,
The increase in paper weight after weight removal is calculated by calculating the liquid backflow amount (g/
cm2 ). Since the present invention relates to facings for sanitary materials, the basis weight is approximately 30 g/m 2 or less as mentioned above, but it is also possible to apply the concept of the present invention to nonwoven fabrics with higher basis weights. For example, it can be used as a nonwoven fabric for filter applications. Below, various effects of the present invention will be specifically explained in Table 1 while comparing it with comparative examples. The main fiber (main) used in each example was polyester fiber, the adhesive fiber (contact) was the aforementioned eccentric composite fiber of polypropylene and polyethylene, and the main fiber in Examples 1-2 and Comparative Examples 1-2 was circular. The real fibers in Example 3 and Comparative Example 3 are T-shaped irregular cross-section fibers, and those in Comparative Examples 4 to 6 are circular solid fibers.
【表】【table】
【表】
本表の実験結果からわかることは以下のとおり
であり、本考案にかかるフエーシングの優透性を
理解することができる。
イ 実施例１〜３の本考案のフエーシングは吸液
速度の低下を伴なうことなく液の逆流量少なく
表面に存在する毛羽はcm2当り１本程度以下であ
りかつ柔軟である。毛羽が少ないことから使用
者の膚に見にくい毛羽付着が少なく、逆流量が
小さいことから使用者の膚を少しでも乾いた状
態に保ち得る。
ロ 比較例５〜６に見られるように多層であつて
も各層中の接着性繊維の量を同一としたり、上
層中のそれをむしろ少なくした場合には毛羽押
さえの効果に乏しく逆流量も大きい。
ハ 比較例１〜４に見られる単一層の場合には全
般的に毛羽も逆流量も大きく、硬くなる傾向に
ある。[Table] The following can be seen from the experimental results in this table, and the superior permeability of the facing according to the present invention can be understood. (a) The facings of the present invention in Examples 1 to 3 have a small amount of backflow of liquid without reducing the liquid absorption rate, and the number of fluffs present on the surface is less than about 1 per cm 2 and is flexible. Since there is less fluff, there is less unsightly fluff adhering to the user's skin, and since the amount of reflux is small, the user's skin can be kept as dry as possible. (b) As seen in Comparative Examples 5 and 6, even if there are multiple layers, if the amount of adhesive fibers in each layer is the same or if the amount in the upper layer is reduced, the fluff suppressing effect is poor and the backflow amount is large. . C. In the case of a single layer as seen in Comparative Examples 1 to 4, the fuzz and the amount of backflow are generally large, and they tend to be hard.
第１図は、本考案のフエーシングの一例につい
てその表面状態を顕微鏡観察したものを模式的に
示すものであつて、１は主体繊維、２は接着性繊
維の溶融部である。
FIG. 1 schematically shows the surface state of an example of the facing of the present invention, observed under a microscope, where 1 is the main fiber and 2 is the melted part of the adhesive fiber.
Claims (1)
層の不織布はポリエステル繊維と偏心型または
バイメタル型接着性複合繊維によつて接着され
た繊維領域を持ち、かつ最上層の不織布中の接
着性繊維の量が下層の不織布中に存在する接着
性繊維の量の1.3倍以上で構成されていること
を特徴とする衛生材料のフエーシング。 (2) 積層された不織布が３層であり、かつ中間層
の不織布中に存在する接着性繊維の量が最下層
の不織布中に存在するそれの量以下である実用
新案登録請求の範囲第１項記載のフエーシン
グ。[Claims for Utility Model Registration] (1) Consisting of an integral laminate of two or more layers of nonwoven fabric, each layer of nonwoven fabric having a fiber region bonded to polyester fibers and eccentric or bimetallic adhesive composite fibers, A facing for a sanitary material, characterized in that the amount of adhesive fibers in the top layer nonwoven fabric is 1.3 times or more the amount of adhesive fibers present in the lower nonwoven fabric. (2) Utility model registration claim 1 in which the laminated nonwoven fabric has three layers, and the amount of adhesive fibers present in the middle layer nonwoven fabric is less than the amount of adhesive fibers present in the bottom layer nonwoven fabric. Facing as described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980102587U JPS6334661Y2 (en) | 1980-07-18 | 1980-07-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980102587U JPS6334661Y2 (en) | 1980-07-18 | 1980-07-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5726227U JPS5726227U (en) | 1982-02-10 |
| JPS6334661Y2 true JPS6334661Y2 (en) | 1988-09-14 |
Family
ID=29464008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980102587U Expired JPS6334661Y2 (en) | 1980-07-18 | 1980-07-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6334661Y2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0762304B2 (en) * | 1985-12-27 | 1995-07-05 | 金井 宏之 | Rapping material for running prevention |
| JPS6340549A (en) * | 1986-08-05 | 1988-02-20 | ユニ・チヤ−ム株式会社 | Surface sheet of absorbable article and its production |
| JPH0217697U (en) * | 1988-07-20 | 1990-02-05 | ||
| JP7325179B2 (en) * | 2018-11-30 | 2023-08-14 | ユニ・チャーム株式会社 | absorbent article |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5615457A (en) * | 1979-07-19 | 1981-02-14 | Kanai Hiroyuki | High bulk nonwoven fabric |
| JPS5615744A (en) * | 1979-07-20 | 1981-02-16 | Kao Corp | Packing material for sanitary napkin and its manufacture |
| JPS5623949A (en) * | 1979-08-07 | 1981-03-06 | Kao Corp | Outer wrapping material of sanitary napkin |
-
1980
- 1980-07-18 JP JP1980102587U patent/JPS6334661Y2/ja not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5615457A (en) * | 1979-07-19 | 1981-02-14 | Kanai Hiroyuki | High bulk nonwoven fabric |
| JPS5615744A (en) * | 1979-07-20 | 1981-02-16 | Kao Corp | Packing material for sanitary napkin and its manufacture |
| JPS5623949A (en) * | 1979-08-07 | 1981-03-06 | Kao Corp | Outer wrapping material of sanitary napkin |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5726227U (en) | 1982-02-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR930009296B1 (en) | Coated fabric and method of making the same | |
| US4761322A (en) | Laminated fibrous web comprising differentially bonded layers, and method and apparatus for making the same | |
| CA1314135C (en) | Thermoplastic material containing absorbent pad or other article | |
| EP0006263A1 (en) | A stabilized rayon web and structures made therefrom | |
| NL8302153A (en) | IMPERMISSIBLE, FINISHING BUT ABSORBENT TISSUE AND METHOD FOR THE MANUFACTURE THEREOF. | |
| JPH0838551A (en) | Multilayer absorbent structure | |
| GB2160475A (en) | A soft nonwoven laminate | |
| RU97112492A (en) | FILM NONWOVEN LAYERED MATERIAL AND PRODUCTS | |
| KR940008962B1 (en) | Conventional surface materials | |
| KR101108415B1 (en) | Surface material and absorbent article using the same | |
| JP5884733B2 (en) | Laminated nonwoven fabric and its products | |
| JPS61125343A (en) | Surface material of absorbable article and its production | |
| JPH0288058A (en) | Surface material for sanitary good | |
| JPS6334661Y2 (en) | ||
| JP2004263307A (en) | Dry pulp nonwoven fabric having integrated layer structure | |
| JPH06128853A (en) | Nonwoven fabric for sanitary material | |
| JPS59157366A (en) | Water pervious and wetting controllable long fiber nonwoven fabric | |
| US20030118764A1 (en) | Composite fluid distribution and fluid retention layer having machine direction zones and Z-direction gradients for personal care products | |
| JPS612854A (en) | Facing material of absorbable article | |
| JP2953628B2 (en) | Laminated paper | |
| EP0961604B1 (en) | Surface material for absorbent articles, absorbent articles that include the surface material, and the use of the material in absorbent articles | |
| AU6997101A (en) | Wound dressing and/or compress with one or more nonwoven layers | |
| JP2647858B2 (en) | Absorbent articles | |
| JPH04272261A (en) | Second sheet of hygienic material | |
| JPS6340549A (en) | Surface sheet of absorbable article and its production |