JPH11323710A - Water-absorbing nonwoven fabric - Google Patents
Water-absorbing nonwoven fabricInfo
- Publication number
- JPH11323710A JPH11323710A JP12872698A JP12872698A JPH11323710A JP H11323710 A JPH11323710 A JP H11323710A JP 12872698 A JP12872698 A JP 12872698A JP 12872698 A JP12872698 A JP 12872698A JP H11323710 A JPH11323710 A JP H11323710A
- Authority
- JP
- Japan
- Prior art keywords
- nonwoven fabric
- water
- layer
- fiber
- fibers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Laminated Bodies (AREA)
- Manufacturing Of Multi-Layer Textile Fabrics (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、不織布一般に広く
使える、高吸水性と耐洗濯性とを兼ね備えた不織布及び
その製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nonwoven fabric having high water absorption and washing resistance which can be widely used for nonwoven fabrics in general, and a method for producing the same.
【０００２】[0002]
【従来の技術】従来からワイパー（清拭布）の機能向上
を目的として、種々の不織布が提案されている。例え
ば、親水性繊維と疎水性繊維を混綿して一体化したワイ
パーが特公昭５４−２３５０７号公報や実公昭４８−４
３２３０号公報に記載されており、また、疎水性繊維を
熱接着複合繊維とした吸水性不織布が特公昭６３−３９
７０３号公報において提案され、また親水性重合体を不
織布に含浸させたものが特公平１−３５８４１号公報
に、そして吸水性物質を混在させた不織布が特公平３−
２５５３６号公報にそれぞれ吸水性良好な不織布とした
ものが記載されている。2. Description of the Related Art Various nonwoven fabrics have been proposed for the purpose of improving the function of a wiper (wiping cloth). For example, a wiper in which a hydrophilic fiber and a hydrophobic fiber are blended and integrated is disclosed in Japanese Patent Publication No. 54-23507 and Japanese Utility Model Publication No. 48-4.
No. 3230, and a water-absorbing nonwoven fabric using a hydrophobic fiber as a heat-bonding conjugate fiber is disclosed in JP-B-63-39.
Japanese Patent Publication No. 1-35841 discloses a nonwoven fabric impregnated with a hydrophilic polymer, and Japanese Patent Publication No. Hei 3-35841 discloses a nonwoven fabric mixed with a water-absorbing substance.
No. 25536 describes a nonwoven fabric having good water absorption.
【０００３】しかしながら、これらの親水性不織布は、
パルプからなる不織布、親水性繊維素材と接着性繊維を
混合した不織布あるいは親水性物質を付着もしくは混合
した不織布であり、いずれも不織布外表面に親水性繊維
などの親水性物質が露出しているため、親水性繊維や親
水性物質が水を含有すると表裏面が共に湿潤状態とな
り、人もしくは物に接触した場合、含浸液が接触した物
に移行して被接触物を濡らしてしまうことになり、建物
の結露吸収材や調湿材などの用途には不向きであった。[0003] However, these hydrophilic nonwoven fabrics
Non-woven fabrics made of pulp, non-woven fabrics in which a hydrophilic fiber material and an adhesive fiber are mixed, or non-woven fabrics in which a hydrophilic substance is attached or mixed, all of which have a hydrophilic substance such as hydrophilic fibers exposed on the outer surface of the non-woven fabric If the hydrophilic fiber or hydrophilic substance contains water, the front and back surfaces are both in a wet state, and when in contact with a person or an object, the impregnating liquid migrates to the contacted object and wets the contacted object, It was not suitable for applications such as dew-absorbing materials and humidity control materials for buildings.
【０００４】この不都合は不織布の片面を防水性に優れ
たシート材料を使用することによって改善することがで
きるが、親水性繊維不織布側に吸収した水分の蒸散性に
乏しく、吸収能が飽和するという短所が現れる。また、
上記防水性シートを疎水性繊維不織布で構成した場合に
はこの短所がいくらか緩和されるが、蒸散性と防水性と
を兼ね備えた不織布となすには不織布の目付を大きくす
る必要があり、厚みが増加して取り扱い性が悪くなる。[0004] This inconvenience can be improved by using a sheet material having excellent waterproofness on one side of the nonwoven fabric, but the absorption of water absorbed on the hydrophilic fiber nonwoven fabric side is poor, and the absorption capacity is saturated. Disadvantages appear. Also,
This disadvantage is somewhat alleviated when the waterproof sheet is made of a hydrophobic fiber nonwoven fabric, but it is necessary to increase the basis weight of the nonwoven fabric in order to form a nonwoven fabric having both transpiration and waterproofness. This increases the handling efficiency.
【０００５】さらに、特開平５−１５６５５８号公報に
開示されているように、疎水性繊維のなかでもポリオレ
フィン繊維が撥水性に優れていることを見い出し、親水
性繊維不織布層と疎水性繊維不織布層とからなる複合不
織布において、疎水性繊維不織布層に繊細なポリオレフ
ィン系繊維を使用することによって上記課題を解決した
ものがある。Further, as disclosed in JP-A-5-156558, it has been found that polyolefin fibers are excellent in water repellency among hydrophobic fibers. In some composite nonwoven fabrics, the above problem has been solved by using delicate polyolefin-based fibers for the hydrophobic fiber nonwoven fabric layer.
【０００６】さらに、特開平９−３１８２３号公報に開
示されているように、吸水性の積層不織布に関するもの
であって、ディスポ肌着、汗取りシート、汗取りパッ
ト、シーツ等であって、疎水層と親水層が積層された不
織布であって、該親水性層の少なくとも一部が該疎水層
の表面に露出している積層不織布がある。Further, as disclosed in Japanese Patent Application Laid-Open No. 9-31823, the present invention relates to a water-absorbent laminated nonwoven fabric, such as disposable underwear, sweat-absorbing sheets, sweat-absorbing pads, sheets, etc. There is a nonwoven fabric in which layers are laminated, wherein at least a part of the hydrophilic layer is exposed on the surface of the hydrophobic layer.
【０００７】しかしながら、これらの吸水性の積層不織
布は、吸水性成分が粉体及び構成ポリマーが低架橋であ
るために、極めて優れた吸水性を持つが、製造工程時吸
水成分が脱落したり洗濯による繰返し使用ができないと
いう欠点があった。また、繰返し洗濯が可能な吸収体と
してレーヨン不織布やコットン不織布等が挙げられる
が、吸水量が不織布単位重量当たり５ｇ以下と低く、高
吸水量が求められる用途においては加圧逆戻りによる濡
れ等の問題があった。[0007] However, these water-absorbent laminated nonwoven fabrics have extremely excellent water-absorbency because the water-absorbent component is low in cross-linking of the powder and the constituent polymer. However, there is a disadvantage that it cannot be used repeatedly. Rayon non-woven fabric and cotton non-woven fabric are also examples of absorbents that can be repeatedly washed. However, the water absorption is as low as 5 g or less per unit weight of the non-woven fabric. was there.
【０００８】[0008]
【発明が解決しようとする課題】本発明の目的は、吸水
性（吸水拡散性）・吸水保時性、リウェット性（加圧逆
戻水量）に優れ、かつ洗濯耐久性に優れた吸収体を提供
することにある。すなわち、高吸水性を有し保水性に優
れて、繰り返し洗濯が可能であり、吸水拡散性に優れて
おり、保持している水分の戻りがない（リウエット性が
優れている）不織布を提供することにある。SUMMARY OF THE INVENTION It is an object of the present invention to provide an absorbent material which is excellent in water absorption (water absorption and diffusion), water retention and retention, re-wetability (pressure return water amount) and washing durability. To provide. That is, the present invention provides a nonwoven fabric which has high water absorption, is excellent in water retention, can be repeatedly washed, has excellent water absorption and diffusion properties, and has no return of retained moisture (excellent rewetting properties). It is in.
【０００９】[0009]
【課題を解決するための手段】上記の課題を解決するた
め、本願発明は、吸水性を有する不織布であって、不織
布Ａ層と不織布Ｂ層とからなり、前記不織布Ａ層が、高
吸水性繊維３〜６０％、１デニール以下の極細繊維が５
〜６０％、熱融着繊維５〜３０％、３ｄ以下のレーヨン
繊維１０％以上で構成された、０．０５〜０．３ｇ／ｍ
3 の密度のものであって、前記不織布Ｂ層が、熱融着繊
維を５％以上含有して構成され、その不織布密度がＡ層
不織布より低いことを要旨とするものである。In order to solve the above problems, the present invention relates to a non-woven fabric having a water absorbing property, comprising a non-woven fabric A layer and a non-woven fabric B layer, wherein the non-woven fabric A layer has a high water absorbing property. 3 to 60% of fiber, 5 ultrafine fibers of 1 denier or less
６０60%, heat-fused fiber 5-30%, 3d or less rayon fiber 10% or more, 0.05-0.3 g / m 2
The nonwoven fabric B layer has a density of 3 , and the nonwoven fabric B layer is configured to contain at least 5% of heat-fused fibers, and the nonwoven fabric density is lower than that of the nonwoven fabric of the layer A.
【００１０】[0010]
【発明の実施の形態】本願発明に係る、吸水性布帛は、
吸水性を有する不織布であって、不織布Ａ層と不織布Ｂ
層とからなり、前記不織布Ａ層が、高吸水性繊維３〜６
０％、１デニール以下の極細繊維が５〜６０％、熱融着
繊維５〜３０％、３ｄ以下のレーヨン繊維１０％以上で
構成された、０．０５〜０．３ｇ／ｍ3 の密度のもので
あって、前記不織布Ｂ層が、不織布密度がＡ層不織布よ
り低く、かつ熱融着繊維を５％以上含有したことを特徴
とする吸収性不織布である。すなわち、保水性を発現せ
しめる高吸水性繊維と、耐洗濯性を発現せしめる極細繊
維と、吸水拡散性を有するレーヨン繊維と、リウェット
性を発現せしめる所定の不織布密度と積層構造とから構
成されてなるものである。BEST MODE FOR CARRYING OUT THE INVENTION The water-absorbent fabric according to the present invention is:
A non-woven fabric having water absorbency, comprising a non-woven fabric A layer and a non-woven fabric B
And the non-woven fabric A layer comprises 3 to 6 superabsorbent fibers.
5% to 60% of ultrafine fibers of 1% or less, 5% to 30% of heat fusion fibers, and 10% or more of rayon fibers of 3d or less, having a density of 0.05 to 0.3 g / m 3 . An absorbent nonwoven fabric, wherein the nonwoven fabric layer B has a lower density of the nonwoven fabric than the layer A nonwoven fabric and contains 5% or more of heat-fused fibers. That is, it is composed of a super absorbent fiber that exhibits water retention, an ultrafine fiber that exhibits washing resistance, a rayon fiber that has a water absorbing and diffusing property, and a predetermined nonwoven fabric density and a laminated structure that exhibits rewetting properties. Things.
【００１１】以下、本発明をさらに詳細に説明する。本
発明の吸水性布帛は、不織布Ａ層に高吸水性繊維を３〜
６０％を含有してなるものである。なお、高吸水性繊維
の含有率が３％以下の場合、不織布構成繊維本数に対す
る高吸水性繊維の割合が少なくなるため、不織布に吸水
性能のムラが生じてしまう。また、高吸水性繊維の含有
率が６０％以上の場合、不織布の吸水性能が飛躍的に向
上するが、洗濯後の乾燥に要する時間が長くなるといっ
た不具合が生じる。Hereinafter, the present invention will be described in more detail. The water-absorbent fabric of the present invention is characterized in that the non-woven fabric A layer contains 3 to 5 super absorbent fibers.
It contains 60%. When the content of the superabsorbent fibers is 3% or less, the ratio of the superabsorbent fibers to the number of nonwoven fabric fibers is reduced, and the nonwoven fabric has uneven water absorption performance. Further, when the content of the superabsorbent fibers is 60% or more, the water absorbing performance of the nonwoven fabric is remarkably improved, but there is a problem that the time required for drying after washing becomes longer.
【００１２】高吸水性繊維の含有率を３〜６０％として
高吸水繊維を構成することで、高吸水繊維の分子鎖間に
水を取込み、圧力を加えても水をほとんど放さないとい
う作用により、高密度の内装側において水分を保持する
こととなる。When the content of the superabsorbent fiber is set to 3 to 60% to constitute the superabsorbent fiber, water is taken in between molecular chains of the superabsorbent fiber, and almost no water is released even when pressure is applied. Therefore, moisture is retained on the high-density interior side.
【００１３】また、本発明の吸水性布帛は、極細繊維を
５〜６０％含んでなるものである。なお、５％未満の場
合洗濯による物理的作用により不織布層が剥離しやすく
なる。また、６０％以上の場合、カーディング工程でネ
ップ等の問題が生じるため、好ましくない。Further, the water-absorbent fabric of the present invention contains 5 to 60% of ultrafine fibers. In addition, when it is less than 5%, the nonwoven fabric layer is easily peeled off by the physical action of washing. On the other hand, if it is 60% or more, problems such as neps occur in the carding step, which is not preferable.
【００１４】極細繊維の含有率を５〜６０％として高吸
水繊維を構成することで、不織布構成中の極細繊維によ
り、不織布中の空隙が小さくなるとともに、繊維の絡み
が強くなう。これにより、外部からの物理的な作用によ
る耐性が向上し、耐洗濯性を有することとなる。When the content of the ultrafine fibers is set to 5 to 60% to form the superabsorbent fibers, the ultrafine fibers in the nonwoven fabric reduce the voids in the nonwoven fabric and increase the entanglement of the fibers. As a result, the resistance due to the physical action from the outside is improved, and the cloth has washing resistance.
【００１５】また、本発明の吸水性布帛は、３ｄ以下の
レーヨン繊維１０％以上を含んでななるものである。な
お、高吸水性繊維の繊維本数が不織布構成繊維本数に対
して低いため（極細繊維使用）、３ｄ以下のレーヨン繊
維１０％未満の場合には不織布全体における親水性繊維
の割合が減少し、吸水拡散性（速度）が悪化することと
なり、好ましくない。The water-absorbent fabric of the present invention comprises 10% or more of 3d or less rayon fiber. Since the number of fibers of the superabsorbent fibers is lower than the number of fibers constituting the nonwoven fabric (use of ultrafine fibers), if the rayon fiber is less than 10% of 3d or less, the proportion of hydrophilic fibers in the entire nonwoven fabric decreases, and The diffusivity (speed) deteriorates, which is not preferable.
【００１６】３ｄ以下のレーヨン繊維の含有率を１０％
以上として高吸水繊維を構成することで、不織布Ａ層の
繊維本数を増加させかつ親水繊維の割合を向上させるこ
とで、吸水拡散性を有することとなる。The content of rayon fibers of 3d or less is 10%
By configuring the highly water-absorbing fibers as described above, the number of fibers in the nonwoven fabric A layer is increased and the ratio of the hydrophilic fibers is improved, so that the nonwoven fabric A has a water-absorbing diffusion property.
【００１７】また、本発明の吸水性布帛の不織布密度に
ついては、Ｂ層不織布の密度のほうがＡ層不織布の密度
に比べて低いものである。なお、Ｂ層不織布の密度がＡ
層不織布の密度より高い場合、例えば０．４ｇ／ｃｍ3
以上の場合には、毛細管現象で水を吸収してしまいＢ層
不織布層で水の保持性が高まり、Ｂ層不織布での濡れ間
が増すほか、保水層であるＡ層不織布への水の浸透性も
悪化する。Further, regarding the nonwoven fabric density of the water-absorbent fabric of the present invention, the density of the B-layer nonwoven fabric is lower than that of the A-layer nonwoven fabric. The density of the B-layer nonwoven fabric is A
When the density is higher than that of the nonwoven fabric, for example, 0.4 g / cm 3
In the above case, water is absorbed by the capillary phenomenon and the water retention of the layer B non-woven fabric layer is enhanced, the interval between wetting in the layer B non-woven fabric is increased, and water permeation into the water-retaining layer A layer non-woven fabric is achieved. The nature also worsens.
【００１８】また、熱融着繊維により繊維間が固定され
ていなかった場合、不織布Ａ層と不織布Ｂ層の２層間に
隙間が生じやすくなり、不織布上層であるＡ層不織布か
らＢ層不織布へ水の浸透性が悪くなる。また、繊維間が
固定されていないと耐クッション性が低下するためリウ
ェット性が低下することとなるので好ましくない。If the fibers are not fixed by the heat-fused fibers, a gap is likely to be formed between the two layers of the non-woven fabric A layer and the non-woven fabric B layer. The permeability of the is deteriorated. In addition, if the space between the fibers is not fixed, the cushion resistance decreases, and the rewetting property decreases, which is not preferable.
【００１９】熱融着繊維の含有率を５％以上として高吸
水繊維を構成することで、不織布Ｂ層が浸透層、不織布
Ａ層が裏層が保水層の役目を果たすことになり、リウエ
ット性を有することとなる。When the content of the heat-fusible fiber is set to 5% or more to constitute the superabsorbent fiber, the nonwoven fabric B layer functions as a penetrating layer and the nonwoven fabric A layer functions as a water retaining layer, and the rewetting property is improved. Will be provided.
【００２０】[0020]
【実施例】本発明を以下の実施例により具体的に説明す
るが、本発明はこれらの実施例のみに限定されるもので
はない。なお、実施例、比較例中の測定値は以下の方法
により測定したものである。The present invention will be described in detail with reference to the following examples, but the present invention is not limited to these examples. The measured values in the examples and comparative examples were measured by the following methods.
【００２１】＜吸水速度＞ＪＩＳＬ−１９０７の表面吸
水法「最大吸水速度及び最大吸水速度時点の吸水量」に
準拠した。 ＜リウェット性＞試料に５ｃｃ／２５ｃｍ2 の水を付与
し、しばらく放置後、試料上下に濾紙を置き、５０ｇ／
ｃｍ2 の荷重を５分間掛けた後の濾紙の吸水量によりリ
ウェット性を評価した。 ＜吸水率＞１０ｃｍ×１０ｃｍの試料重量を測定し、蒸
留水中に浸積させ、１５分間試料を菱形状に吊下げた後
の重量を測定し、吸水前後の重量から吸水倍率を算出し
た。 ＜耐洗濯性＞１０ｃｍ×１０ｃｍの試料を４辺を閉じた
ポリエステルタフタの袋に挿入し、ｊｉｓ家庭洗濯法１
０３法に準じて１０回繰返し洗濯を行い、洗濯前後の吸
水率の変化を測定した。<Water absorption rate> The surface absorption method of JIS L-1907 "Maximum water absorption rate and water absorption at the time of the maximum water absorption rate" was used. <Rewetting property> 5 cc / 25 cm 2 of water was applied to the sample, and after leaving for a while, filter paper was placed on the top and bottom of the sample, and 50 g /
The rewetting property was evaluated based on the water absorption of the filter paper after applying a load of cm 2 for 5 minutes. <Water absorption> A 10 cm x 10 cm sample was weighed, immersed in distilled water, the sample was hung in a diamond shape for 15 minutes, the weight was measured, and the water absorption ratio was calculated from the weight before and after water absorption. <Washing resistance> A 10 cm × 10 cm sample was inserted into a polyester taffeta bag with four sides closed, and jis household washing method 1 was performed.
Washing was repeated 10 times according to Method 03, and the change in water absorption before and after washing was measured.
【００２２】＜実施例１＞高吸水繊維（鐘紡（株）製ベ
ルオアシス；９ｄ）を１５％，極細繊維（０．３ｄ）を
２０％、レーヨン繊維（３ｄ）を２０％、熱融着繊維
（３ｄ）１５％，ポリエステル繊維３０％混合し、ニー
ドルパンチ法にて目付４５０ｇ／ｍ2 ，厚さ３．０ｍｍ
の不織布Ａ層（密度０．１５）を得た。また，熱融着繊
維（３ｄ）１５％、中空ポリエステル繊維（１３ｄ）８
５％からなる目付１００ｇ／ｍ2 ，厚み１ｍｍの不織布
Ｂ層（密度０．１０）に上記不織布Ａ層をニードルパン
チ法にて積層させ、吸水性不織布を得た。Example 1 15% of superabsorbent fiber (Belle Oasis; 9d, manufactured by Kanebo Co., Ltd.), 20% of ultrafine fiber (0.3d), 20% of rayon fiber (3d), heat-sealed fiber (3d) 15% and 30% of polyester fiber were mixed, and the basis weight was 450 g / m 2 and the thickness was 3.0 mm by the needle punch method.
Of the nonwoven fabric A (density 0.15). In addition, 15% of the heat fusion fiber (3d), the hollow polyester fiber (13d) 8
The nonwoven fabric A layer was laminated by a needle punch method on a 5% nonwoven fabric B layer having a basis weight of 100 g / m 2 and a thickness of 1 mm (density: 0.10) to obtain a water-absorbent nonwoven fabric.
【００２３】＜比較例＞ 比較例１ レーヨン繊維（３ｄ）５０％、ポリエステル繊維（３
ｄ）５０％からなる目付５５０ｇ／ｍ2 ，厚さ４．５ｍ
ｍの不織布を作成し、吸水性布帛を得た。 比較例２ 特公平３−２５５３６号公報に記載された内容に基づい
て吸水性樹脂粉体を作成し、吸水性樹脂を得た。 比較例３ 実施例１において熱融着繊維の変わりにアクリル繊維
（３ｄ）を用い、これ以外は実施例１と同様の方法にて
製造した不織布を得た。 比較例４ 実施例１において極細繊維代わりアクリル繊維（３ｄ）
を用い、これ以外は実施例１と同様にして製造した不織
布を得た。Comparative Example Comparative Example 1 50% rayon fiber (3d), polyester fiber (3d)
d) Weight of 550 g / m 2 of 50% and thickness of 4.5 m
m was prepared, and a water-absorbent fabric was obtained. Comparative Example 2 A water-absorbing resin powder was prepared based on the contents described in JP-B-3-25536 to obtain a water-absorbing resin. Comparative Example 3 In Example 1, an acrylic fiber (3d) was used instead of the heat-fused fiber, and a nonwoven fabric was produced in the same manner as in Example 1 except for this. Comparative Example 4 Acrylic fiber (3d) in place of microfiber in Example 1
, And a nonwoven fabric produced in the same manner as in Example 1 was obtained.
【００２４】実施例と比較例の比較した結果を以下に示
す。 吸水速度 リウェット性 吸水率 耐洗濯性 （ml/sec） （％） （％） （％） 実施例１ ２．６３ ２２．６ １０５８ ８６ 比較例１ ０．０３ ５６．２ ２８６ ９３ 比較例２ ３０００ ４０以下 比較例３ ２．７５ ３５．４ １０６７ ８５ 比較例４ ２．６８ ３０．３ ９８４ ６７The result of comparison between the embodiment and the comparative example is shown below. Water absorption rate Rewetting property Water absorption rate Washing resistance (ml / sec) (%) (%) (%) Example 1 2.63 22.6 1058 86 Comparative Example 1 0.03 56.2 286 93 Comparative Example 2 3000 40 Comparative Example 3 2.75 35.4 1067 85 Comparative Example 4 2.68 30.3 984 67
【００２５】[0025]
【発明の効果】本発明によれば、吸水性、保水性を有す
る親水性不織布と表面での液残りの少ない浸透性不織布
を積層した設計になっており、水や汗・血液等の液体を
不織布片面から直ちに吸収し、且つ吸収した水や汗等を
吸水面と反対側に拡散し、吸水面に濡れ感やべたつき感
のない吸水性布帛を提供することができる。According to the present invention, a hydrophilic nonwoven fabric having water absorbency and water retention and a permeable nonwoven fabric with a small amount of liquid remaining on the surface are designed to be laminated. It is possible to provide a water-absorbing fabric that absorbs water, sweat, and the like immediately from one side of the nonwoven fabric and diffuses the absorbed water, sweat, and the like to the side opposite to the water-absorbing surface, and has no wet or sticky feeling on the water-absorbing surface.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 桃井 直陸 大阪府大阪市北区梅田１−２−２ カネボ ウ合繊株式会社内 ────────────────────────────────────────────────── ─── Continued on the front page (72) Naoto Momoi 1-2-2 Umeda, Kita-ku, Osaka-shi, Osaka Kanebo Wosen Co., Ltd.
Claims (3)
Ａ層と不織布Ｂ層とからなり、前記不織布Ａ層が、高吸
水性繊維３〜６０％、１デニール（ｄ）以下の極細繊維
が５〜６０％、熱融着繊維５〜３０％、３ｄ以下のレー
ヨン繊維１０％以上で構成された、０．０５〜０．３ｇ
／ｍ3 の密度のものであって、前記不織布Ｂ層が、熱融
着繊維を５％以上含有して構成され、その不織布密度が
Ａ層不織布より低いことを特徴とする吸収性不織布。1. A non-woven fabric having a water-absorbing property, comprising a non-woven fabric A layer and a non-woven fabric B layer, wherein the non-woven fabric A layer is composed of 3 to 60% of highly water-absorbing fibers and ultrafine fibers of 1 denier (d) or less. 0.05 to 0.3 g, composed of 5 to 60%, 5 to 30% of heat fusion fiber, and 10% or more of 3d or less rayon fiber
/ M 3 , wherein the non-woven fabric B layer is constituted by containing 5% or more of heat-sealing fibers, and the non-woven fabric density is lower than that of the A-layer non-woven fabric.
を特徴とする請求項１記載の吸収性不織布。2. The absorbent nonwoven fabric according to claim 1, wherein the water absorbent nonwoven fabric is covered with a cloth.
を貼り合せたことを特徴とする請求項１または請求項２
記載の吸収性不織布。3. The water-absorbent nonwoven fabric is laminated with a film having moisture permeability.
Absorbent nonwoven fabric as described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12872698A JP3696730B2 (en) | 1998-05-12 | 1998-05-12 | Water-absorbing nonwoven fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12872698A JP3696730B2 (en) | 1998-05-12 | 1998-05-12 | Water-absorbing nonwoven fabric |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11323710A true JPH11323710A (en) | 1999-11-26 |
| JP3696730B2 JP3696730B2 (en) | 2005-09-21 |
Family
ID=14991932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12872698A Expired - Fee Related JP3696730B2 (en) | 1998-05-12 | 1998-05-12 | Water-absorbing nonwoven fabric |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3696730B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006077332A (en) * | 2004-09-07 | 2006-03-23 | Uni Charm Corp | Liquid absorbing sheet and method for producing the same |
| JP2008155566A (en) * | 2006-12-26 | 2008-07-10 | Kinsei Seishi Kk | Gradual absorption discharge nature sheet and its manufacturing process |
| CN104707402A (en) * | 2013-12-12 | 2015-06-17 | 华东理工大学 | Thin layer composite filtering material with three-dimensional structure, and preparation method thereof |
| JP2015192777A (en) * | 2014-03-31 | 2015-11-05 | ダイワボウホールディングス株式会社 | Objective wiping sheet and manufacturing method therefor |
| JP2020076176A (en) * | 2018-11-09 | 2020-05-21 | 帝人フロンティア株式会社 | Hygroscopic fiber structure |
| WO2024180809A1 (en) * | 2023-02-27 | 2024-09-06 | Jnc株式会社 | Nonwoven cloth, absorbent article using same, and wiper for cleaning |
-
1998
- 1998-05-12 JP JP12872698A patent/JP3696730B2/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006077332A (en) * | 2004-09-07 | 2006-03-23 | Uni Charm Corp | Liquid absorbing sheet and method for producing the same |
| JP4511290B2 (en) * | 2004-09-07 | 2010-07-28 | ユニ・チャーム株式会社 | Liquid absorbing sheet for absorbing and retaining drip oozing from food and method for producing the same |
| JP2008155566A (en) * | 2006-12-26 | 2008-07-10 | Kinsei Seishi Kk | Gradual absorption discharge nature sheet and its manufacturing process |
| CN104707402A (en) * | 2013-12-12 | 2015-06-17 | 华东理工大学 | Thin layer composite filtering material with three-dimensional structure, and preparation method thereof |
| CN104707402B (en) * | 2013-12-12 | 2016-07-13 | 华东理工大学 | There is thin layer composite filtering material of 3 dimension structures and preparation method thereof |
| JP2015192777A (en) * | 2014-03-31 | 2015-11-05 | ダイワボウホールディングス株式会社 | Objective wiping sheet and manufacturing method therefor |
| JP2020076176A (en) * | 2018-11-09 | 2020-05-21 | 帝人フロンティア株式会社 | Hygroscopic fiber structure |
| WO2024180809A1 (en) * | 2023-02-27 | 2024-09-06 | Jnc株式会社 | Nonwoven cloth, absorbent article using same, and wiper for cleaning |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3696730B2 (en) | 2005-09-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1066826B1 (en) | Personal cleansing sheet | |
| US4282874A (en) | Disposable absorbent article of manufacture | |
| JP3781617B2 (en) | Absorbent articles | |
| US5433987A (en) | Absorbent spun-laced fabric | |
| JPS5939136B2 (en) | sanitary napkins | |
| JP2523269B2 (en) | Disposable urine pad | |
| US4709490A (en) | Insole | |
| GB2055690A (en) | Non-woven fabric for sanitary towels | |
| JPH05228174A (en) | Beautiful and dried surface facing composition processed by needle | |
| JPH0724006A (en) | Absorptive article | |
| KR20020039634A (en) | Absorbent article | |
| JPH05228170A (en) | New disposable absorbent article | |
| JPS6088551A (en) | Sanitary protective article | |
| US20230201048A1 (en) | Washable sanitary product | |
| JPH11323710A (en) | Water-absorbing nonwoven fabric | |
| CA2385886A1 (en) | Layered cleaning sheets | |
| WO2000004936A2 (en) | Textile including super absorbent fibers | |
| JP4605971B2 (en) | Disposable wearing items | |
| JP4470196B2 (en) | Hydrophilic nonwoven fabric | |
| JP4015739B2 (en) | Waterproof nonwoven fabric | |
| KR20040029025A (en) | Article for cleansing, treating, and/or exfoliating skin | |
| JPS59915Y2 (en) | wound dressing material | |
| JPS6010489Y2 (en) | makeup puff | |
| CN220594258U (en) | Waterproof and oilproof breathable fabric | |
| JPH03241051A (en) | Liquid impermeable sheet for sanitary material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20050120 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20050222 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20050420 |
|
| A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A711 Effective date: 20050420 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A821 Effective date: 20050420 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20050607 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20050630 |
|
| R150 | Certificate of patent (=grant) or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090708 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100708 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110708 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110708 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120708 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120708 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130708 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130708 Year of fee payment: 8 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130708 Year of fee payment: 8 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140708 Year of fee payment: 9 |
|
| LAPS | Cancellation because of no payment of annual fees |