JP3058496B2 - Absorbent structure and manufacturing method thereof - Google Patents
Absorbent structure and manufacturing method thereofInfo
- Publication number
- JP3058496B2 JP3058496B2 JP3306271A JP30627191A JP3058496B2 JP 3058496 B2 JP3058496 B2 JP 3058496B2 JP 3306271 A JP3306271 A JP 3306271A JP 30627191 A JP30627191 A JP 30627191A JP 3058496 B2 JP3058496 B2 JP 3058496B2
- Authority
- JP
- Japan
- Prior art keywords
- crimp
- absorbent structure
- fiber
- absorbent
- water
- 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 - Fee Related
Links
Landscapes
- Absorbent Articles And Supports Therefor (AREA)
- Nonwoven Fabrics (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、生理用ナプキン、紙お
むつ、傷手当用品、包帯、失禁用パッド等の吸収性物品
に好適に使用できる吸収性構造体及びその製造方法に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an absorbent structure which can be suitably used for absorbent articles such as sanitary napkins, disposable diapers, wound dressings, bandages, incontinence pads and the like, and a method for producing the same.
【０００２】[0002]
【従来の技術】従来、吸収性物品に用いられる吸収性構
造体としては、パルプと吸水ポリマー粉或いは粒子を混
ぜた構造体であり、この系はポリマーの移動による脱落
や片寄りが発生する上、構造体のヨレの原因にもなり十
分に機能を発揮できないことが知られている。2. Description of the Related Art Conventionally, an absorbent structure used for an absorbent article is a structure in which pulp and a water-absorbing polymer powder or particles are mixed. However, it is known that the structure may be distorted and the function cannot be sufficiently exhibited.
【０００３】上記の問題を解消するため、構造体内にバ
インダーや熱可塑性樹脂を混合する方法（特開平３ー６
３０４９）、吸水ポリマーを紙に挟んで湿潤下に圧着
し、吸水ポリマーの固定をねらった方法（特開平３ー１
７３５６２）、または吸水ポリマーを繊維化して複合化
する方法（特開平３ー４５７６９）等が考えられてい
る。In order to solve the above problem, a method of mixing a binder or a thermoplastic resin into a structure (Japanese Patent Laid-Open No. 3-6 / 1991)
3049), a method in which a water-absorbing polymer is sandwiched between papers and pressed under wet conditions to fix the water-absorbing polymer (Japanese Patent Laid-Open No. 3-1).
73562), or a method of forming a composite by converting a water-absorbing polymer into a fiber (Japanese Patent Application Laid-Open No. 3-45769).
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、バイン
ダー等の接着成分を用いた方法では、接着成分を多くし
て形体安定性を得ようとすると、逆に吸水ポリマーの膨
張を阻害し、吸収性能を低下させてしまう。また、吸水
ポリマーを湿潤下に圧着する方法では、湿潤のコントロ
ールが難しいうえ親水繊維への固定も必ずしも安定かつ
確実とは言えない。However, in the method using an adhesive component such as a binder, if the amount of the adhesive component is to be increased to obtain the form stability, on the contrary, the expansion of the water-absorbing polymer is hindered, and the absorption performance is reduced. Lower it. Further, in the method of pressing the water-absorbing polymer under wet conditions, it is difficult to control the wetness, and the fixation to the hydrophilic fiber is not always stable and reliable.
【０００５】更に、吸水ポリマーを繊維化する方法で
は、吸水ポリマーの繊維化技術の難しさとその繊維の取
扱も容易でないうえ、吸水能力として球状ポリマーの表
面層より小さくなるため吸水速度が劣ってしまう。した
がって、本発明の目的は、吸水ポリマーの吸水能力及び
吸水速度などの低下が見られずに、該吸水ポリマーを構
造体内に簡単に固定させ、使用時に受ける外力による構
造体自体のヨレの発生、あるいはポリマーの片寄り等に
基づく吸収性能の低下がほとんどみられない吸収性構造
体及びその製造方法を提供することにある。Further, in the method of fiberizing a water-absorbing polymer, the fiber-forming technology of the water-absorbing polymer is difficult and the handling of the fibers is not easy, and the water absorbing ability is smaller than the surface layer of the spherical polymer, so that the water absorbing speed is inferior. . Therefore, an object of the present invention is to easily fix the water-absorbing polymer in the structure without observing a decrease in the water-absorbing ability and the water-absorbing speed of the water-absorbing polymer, and to generate the deformation of the structure itself due to an external force received during use. Another object of the present invention is to provide an absorptive structure and a method for producing the same, which hardly cause a decrease in absorption performance due to, for example, a bias of the polymer.
【０００６】[0006]
【課題を解決するための手段】本発明は、螺旋状に捲縮
する捲縮発現性繊維を含む吸収性構造体において、該捲
縮発現性繊維の捲縮した螺旋構造内部に吸水性粒状物が
保持されており、該吸収性構造体の縦方向又は横方向の
２０％伸長後の回復率が８０％以上であることを特徴と
する吸収性構造体を提供することにより上記目的を達成
するものである。SUMMARY OF THE INVENTION The present invention relates to an absorbent structure containing crimp-forming fibers that are crimped in a helical form, wherein a water-absorbing particulate material is contained inside the crimped spiral structure of the crimp-forming fibers. Is held , and the longitudinal or lateral direction of the absorbent structure is
The object is achieved by providing an absorbent structure characterized in that the recovery rate after 20% elongation is 80% or more .
【０００７】[0007]
【作用】本発明に係る吸収構造体によれば、吸水性粒状
物は捲縮発現性繊維によって保持された状態にあるの
で、その使用時のヨレの発生や片寄りはなく、また接着
剤による膨張阻害等もを受けることがないため吸収性能
の低下が少ない。また、吸水性粒状物の固定は捲縮発現
性繊維の発現を行うだけで簡単になされ、更に、吸水粒
状物に球状のものを用いて吸水速度を高めることもでき
る。According to the absorbent structure according to the present invention, since the water-absorbing granular material is held by the crimp-generating fiber, there is no occurrence of twisting or offset during use, and there is no adhesive. Since there is no swelling inhibition or the like, there is little decrease in absorption performance. Further, the fixation of the water-absorbing granules can be easily performed only by expressing the crimp-expressing fiber, and the water absorbing speed can be increased by using a spherical water-absorbing granule.
【０００８】[0008]
【発明の実施態様】本発明は、螺旋状に捲縮する捲縮発
現性繊維を含む吸収性構造体（ウエブ等）において、該
捲縮発現性繊維の捲縮した螺旋構造内部に吸水性粒状物
が保持されている。本発明の吸収性構造体を構成する捲
縮発現性繊維は、捲縮発現性を有し、捲縮発現後の構造
体の物性が２０％伸長後の回復率８０％以上である。８
０％未満では、構造体の弾性回復率が不十分で、吸収性
構造体に加わる外力に追従しきれない上、吸水性粒状物
（吸水ポリマー等。）の保持力も不十分である。BEST MODE FOR CARRYING OUT THE INVENTION The present invention relates to an absorbent structure (web or the like) containing crimp-expressing fibers that are spirally crimped. Things are being held. Crimp development of the fibers constituting the absorbent structure of the present invention has a crimp development property, Ru der properties 20% post elongation recovery rate of 80% or more of the structure after the crimp development. 8
If it is less than 0%, the elastic recovery rate of the structure is insufficient, the structure cannot follow the external force applied to the absorbent structure, and the holding power of the water-absorbing particulate matter (such as a water-absorbing polymer) is also insufficient.
【０００９】また、本発明の吸収性構造体は前記繊維を
少なくとも５０％以上含有することが好ましく、５０％
未満では十分な吸縮が得られず、十分な伸縮性を発現し
ない。本発明の吸収性構造体は、捲縮発現前の構造物
（又はカードウエブ状態のもの）に対する捲縮発現後の
構造物の面積収縮率が３０％以上であることが好まし
く、３０％未満では前記の弾性が不十分な上、吸水性粒
状物の保持力も低い。The absorbent structure of the present invention preferably contains at least 50% or more of the fiber,
If it is less than 10, sufficient absorption cannot be obtained, and sufficient elasticity cannot be exhibited. In the absorbent structure of the present invention, the area shrinkage ratio of the structure after crimping is preferably 30% or more with respect to the structure before crimping (or in a card web state), and is less than 30%. In addition to the insufficient elasticity, the holding power of the water-absorbing granular material is low.
【００１０】また、本発明の吸収性構造体は、吸水もし
くは親水性素材を混合することも好ましい。吸水もしく
は親水性素材、例えばレーヨンスフやパルプ等を混合さ
せることにより、捲縮発現性繊維が疎水性であっても吸
水性粒状物への導水材として機能し、吸水性粒状物を有
効に利用できる。また、捲縮発現繊維自体に吸水樹脂を
練り込んでもよい。It is also preferable that the absorbent structure of the present invention contains a water-absorbing or hydrophilic material. By mixing a water-absorbing or hydrophilic material such as rayon soup or pulp, even if the crimp-expressing fiber is hydrophobic, it functions as a water-guiding material to the water-absorbing granules, and the water-absorbing granules can be effectively used. . Further, a water-absorbing resin may be kneaded into the crimp-expressing fiber itself.
【００１１】捲縮発現性繊維としては、膨潤前の吸水性
粒状物を保持するため、繊維の太さは６ｄ（デニール）
以下が好ましく、工程性を考慮すると１〜３ｄ以下であ
ることがより好ましい。繊維長は２０〜７６ｍｍである
ことが好ましい。繊維は太すぎると、或いは繊維長が短
すぎても吸水性粒状物が把持できず、ウエブの収縮率も
低い。また、細すぎると、或いは繊維長が長すぎるとカ
ード性が悪くなる。The crimp developing fiber has a thickness of 6 d (denier) in order to retain the water-absorbing granular material before swelling.
The following is preferable, and in consideration of the processability, it is more preferably 1 to 3d or less. The fiber length is preferably from 20 to 76 mm. If the fibers are too thick or if the fiber length is too short, the water-absorbing particulates cannot be gripped, and the web shrinkage is low. On the other hand, if it is too thin, or if the fiber length is too long, the cardability deteriorates.
【００１２】本発明に係る繊維としては、ポリプロピレ
ン、ポリエチレン等のポリオレフィン系樹脂、ポリエチ
レンテレフタレート等のポリエステル系樹脂、或いはナ
イロン樹脂又はこれらを構造的に組み合わせた偏芯した
芯／鞘型或いはサンドバイサイド型の複合繊維を用いる
ことができる。吸水性粒状物としては、デンプン系、セ
ルロース系、合成ポリマー系が挙げられ、例えば、デン
プン−アクリル酸（塩）グラフト共重合体、デンプン−
アクリロニトリル共重合体のケン化物、ナトリウムカル
ボキシメチルセルロースの架橋物、アクリル酸（塩）重
合体等がよい。形状としては、球状、りん片状等、捲縮
発現性繊維が把持できる形状であればどのようなもので
もよいが、粒径としては５０〜４００μｍが好ましく、
１５０〜２５０μｍであればより好ましい。The fiber according to the present invention may be a polyolefin resin such as polypropylene or polyethylene, a polyester resin such as polyethylene terephthalate, a nylon resin or an eccentric core / sheath type or a sand-by-side type obtained by structurally combining these. Can be used. Examples of the water-absorbing granules include starch-based, cellulose-based, and synthetic polymer-based materials. For example, starch-acrylic acid (salt) graft copolymer, starch-
Saponified acrylonitrile copolymer, cross-linked sodium carboxymethyl cellulose, acrylic acid (salt) polymer, and the like are preferable. The shape may be any shape, such as a sphere or a scale, as long as crimp-expressing fibers can be gripped, and the particle size is preferably 50 to 400 μm.
More preferably, it is 150 to 250 μm.
【００１３】本発明の吸収性構造体を製造する好適な方
法は、前記捲縮発現繊維を５０％以上含有してなる公知
の方法によるカードウエブ（構造物）を形成し、次いで
吸水性粒状物を散布する。その後、捲縮発現温度以上で
熱処理し、構造物面積収縮率を３０％以上にさせること
により、吸水性粒状物の取り込んだ繊維構造を形成する
ことができる。また、吸水性粒状物散布のウエブ搬送コ
ンベアのメッシュは粗しく、余分な吸水性粒状物を脱落
回収する。さらに、構造物に吸水性粒状物を多く散布
し、より吸水性能の高い吸収性構造体とする場合、熱処
理により捲縮を弱く発現させ、繊維密度をアップさせた
のち吸水性粒状物を散布、次いで再熱処理し強固に捲縮
させることにより、より多くの吸水性粒状物を固定させ
ることもできる。また、捲縮発現繊維の捲縮を十分発現
させた後、該吸収性構造体を拡幅、延伸させて吸水性粒
状物を散布しても同様の吸収性構造体を得ることがで
き、その拡幅率が１．１乃至３．０倍、延伸率が１．０
乃至２．０倍の範囲にあることが望ましい。A preferred method for producing the absorbent structure of the present invention is to form a card web (structure) by a known method containing at least 50% of the above-mentioned crimp-expressing fiber, and then to form a water-absorbing granular material. Spray. Thereafter, a heat treatment is performed at a temperature equal to or higher than the crimp development temperature so that the area shrinkage of the structure is set to 30% or more, whereby a fiber structure in which the water-absorbing particulate matter is incorporated can be formed. Further, the mesh of the web transport conveyor for spraying the water-absorbing particulates is coarse, and extra water-absorbing particulates are dropped and collected. Furthermore, when a large amount of water-absorbing particulates are sprayed on the structure to make the absorbent structure having a higher water-absorbing performance, the heat-treated crimps are weakly expressed, and after increasing the fiber density, the water-absorbing particulates are sprayed. Then, by heat-treating again and firmly crimping, more water-absorbing granules can be fixed. Further, after sufficiently expressing the crimp of the crimp-expressing fiber, the same absorbent structure can be obtained even if the absorbent structure is widened and stretched and the water-absorbing granules are dispersed. The rate is 1.1 to 3.0 times and the stretching rate is 1.0
It is desirable to be in the range of 2.0 to 2.0 times.
【００１４】以上のように構成される本発明に係る吸収
性構造体は、シート、その他の適宜な形状で使用するだ
けでなく、他の積層吸収性構造体の一つの構成層として
も使用することができる。また、用途的には、生理用ナ
プキン、紙おむつ、傷手当用品、包帯、失禁用パッド等
の吸収性物品に好適に用いることができる。The absorbent structure according to the present invention configured as described above is used not only in the form of a sheet or other appropriate shape, but also as one constituent layer of another laminated absorbent structure. be able to. In addition, it can be suitably used for absorbent articles such as sanitary napkins, disposable diapers, wound care products, bandages, incontinence pads and the like.
【００１５】[0015]
【実施例】次に、実施例を挙げて本発明を説明するが、
本発明はこれらの実施例に制約されるものではない。 （実施例１）大和紡（株）ＣＰＰ繊維（太さ２ｄ、繊維
長２０ｍｍ、素材：ポリプロピレン）とＰＥＴ繊維（太
さ２ｄ、繊維長５１ｍｍ）を混率が８０対２０、５０対
５０、３０対７０となるようにカードウエブを作成し、
吸水ポリマー（平均粒径：１００μｍ、素材：ポリアク
リル酸塩架橋物）を散布、１３０℃で５〜９０ｓｅｃの
間で熱処理を行い、各混率に関して面積収縮率の異なる
サンプルを作成した。Next, the present invention will be described with reference to examples.
The present invention is not limited to these embodiments. Example 1 Daiwabo Co., Ltd. CPP fiber (thickness 2d, fiber length 20 mm, material: polypropylene) and PET fiber (thickness 2d, fiber length 51 mm) were mixed at 80:20, 50:50, and 30 pairs. Create a card web to be 70,
A water-absorbing polymer (average particle size: 100 μm, material: crosslinked polyacrylate) was sprayed, and heat treatment was performed at 130 ° C. for 5 to 90 seconds to prepare samples having different area shrinkage rates with respect to each mixing ratio.
【００１６】ＣＰＰ繊維とＰＥＴ繊維の混率８０：２０
で、収縮率が８０、３０、２０％のサンプルをそれぞれ
サンプル１、２、３、混率５０：５０で、収縮率が８
０、３０、２０％のサンプルをそれぞれサンプル４、
５、６、混率３０：７０で、収縮率が３０、２０％のサ
ンプルをそれぞれサンプル７、８とした。尚、サンプル
３、６、７、８は比較例である。 （実施例２） 前記ＣＰＰ繊維と混合する繊維をレーヨン１．５ｄ×３
２ｍｍ（大和紡（株））を使用し実施例１と同条件で作
成しサンプル９とした。Mixing ratio of CPP fiber and PET fiber: 80:20
The samples having shrinkage ratios of 80, 30, and 20% were samples 1, 2, and 3, respectively, and the mixture ratio was 50:50, and the shrinkage ratio was 8
Samples of 0, 30, and 20% were assigned to sample 4,
Samples having 5, 6 and a mixture ratio of 30:70 and a shrinkage ratio of 30 and 20% were designated as Samples 7 and 8, respectively. In addition, sample
3, 6, 7, and 8 are comparative examples . (Example 2) The fiber mixed with the CPP fiber was rayon 1.5d × 3.
A sample 9 was prepared using 2 mm (Daiwabo Co., Ltd.) under the same conditions as in Example 1.
【００１７】（実施例３）ＣＰＰ繊維１００％のカード
ウエブを作成し、次に吸水ポリマーとパルプの混合物を
散布し１３０℃で熱処理を１分間行いサンプルを作成し
サンプル１０とした。各実施例、比較例のサンプル特性
を表１に示した。(Example 3) A card web of 100% CPP fiber was prepared, and then a mixture of a water-absorbing polymer and pulp was sprayed and heat-treated at 130 ° C for 1 minute to prepare a sample, thereby obtaining sample 10. Table 1 shows the sample characteristics of each of the examples and the comparative examples.
【００１８】[0018]
【表１】 ＣＰＰ繊維５０％未満及び面積収縮率３０％未満では、
回復率、脱落性、ヨレ性が不十分であった。また、ＣＰ
Ｐの混率が３０％では、８０％の収縮率は得られなかっ
た。[Table 1] If the CPP fiber is less than 50% and the area shrinkage is less than 30%,
The recovery rate, falling off property, and repelling property were insufficient. Also, CP
When the mixing ratio of P was 30%, a shrinkage of 80% was not obtained.
【００１９】（実施例４）前記ＣＰＰ繊維（太さ２ｄ、
繊維長２０ｍｍ）１００％のカードウエブにポリマーと
パルプの混合物を散布し１３０℃で熱処理９０ｓｅｃで
サンプル１０を作成した。 （比較例１）通常のパルプとポリマーを積層し、吸収紙
で包んで構造体を比較品１として作成。(Example 4) The CPP fiber (thickness 2d,
A mixture of polymer and pulp was sprayed on a 100% card web having a fiber length of 20 mm, and a sample 10 was prepared by heat treatment at 130 ° C. for 90 seconds. (Comparative Example 1) A normal pulp and a polymer were laminated, wrapped with absorbent paper, and a structure was prepared as Comparative Product 1.
【００２０】（比較例２）大和紡（株）の熱可塑性繊維
ＮＢＦ（Ｈ）（太さ２ｄ、繊維長５１ｍｍ）１００％で
カードウエブを作成し次いでポリマーを散布、その後１
３５℃で熱処理９０ｓｅｃで比較品２を作成。 （比較例３）比較例２と同様にカードウエブを作成しそ
のまま１３５℃で９０ｓｅｃ熱処理後ポリマーを散布し
比較品３を作成。(Comparative Example 2) A card web was prepared from 100% of thermoplastic fiber NBF (H) (thickness: 2 d, fiber length: 51 mm) manufactured by Daiwabo Co., Ltd.
A comparative product 2 was prepared at 35 ° C. and a heat treatment of 90 seconds. (Comparative Example 3) A card web was prepared in the same manner as in Comparative Example 2, and heat treatment was performed at 135 ° C for 90 sec.
【００２１】（比較例４）デュポン社製スパンレース
Ｎ．Ｗ．「ソンタラ８４２３」を使用し片面にホットメ
ルト粘着剤を塗布、次いでポリマーを散布しＮ．Ｗ．上
にポリマーを固定し比較品４を作成。 （比較例５）パルプとポリマーと熱可塑性樹脂を混合
し、熱処理を行い熱可塑性樹脂の融点より５℃高い温度
で３０ｍｉｎ処理し比較品５を作成。(Comparative Example 4) Spunlace N.D. W. Using "Sontara 8423", apply a hot melt adhesive on one side, then spray the polymer to W. Fix the polymer on the top to make comparative product 4. (Comparative Example 5) A pulp, a polymer, and a thermoplastic resin were mixed, heat-treated, and treated at a temperature 5 ° C higher than the melting point of the thermoplastic resin for 30 minutes to prepare Comparative Product 5.
【００２２】実施例サンプルと比較例サンプルによる性
能比較を表２に示した。Table 2 shows a performance comparison between the example sample and the comparative example sample.
【００２３】[0023]
【表２】 注）本実施例において散布したポリマー量は全て同量で
ある。 物性測定法 ＊１ 面積収縮率：収縮前のウエブ面積Ｓ１、収縮後の
ウエブ面積Ｓ２としたとき、各面積を画像解析装置によ
り測定。収縮率＝Ｓ２／Ｓ１＊１００ ＊２ ２０％伸長後回復率：テンシロン引張試験機にお
いて、幅５０ｍｍの試験片をチャック間隔１５０ｍｍで
セットする。３００ｍｍ／ｍｉｎの速度で伸長しチャッ
ク間隔が１８０ｍｍになったら同速度で戻し応力が０に
なった点の吸収性構造体長Ｌを読み取る。回復率＝（１
８０ーＬ）／３０＊１００ その他の評価基準 ◎：実用性の高いレベル ○：実用性を一応満足しているレベル △：実用性にやや不安のあるレベル ×：実用性に問題のあるレベル[Table 2] Note) The amount of polymer sprayed in this example is the same. Physical property measurement method * 1 Area shrinkage: When the web area S1 before shrinkage and the web area S2 after shrinkage, each area was measured by an image analyzer. Shrinkage = S2 / S1 * 100 * 2 Recovery after 20% elongation: In a Tensilon tensile tester, a test piece having a width of 50 mm is set at a chuck interval of 150 mm. When the elongate at a speed of 300 mm / min and the chuck interval becomes 180 mm, the absorbent structure length L at the point where the return stress becomes 0 at the same speed is read. Recovery rate = (1
80-L) / 30 * 100 Other evaluation criteria ：: High level of practicality レ ベ ル: Level that satisfies practicality temporarily △: Level with some uneasiness in practicality X: Level with problem in practicality
【００２４】[0024]
【効果】本発明に係る吸収性構造物は、吸収ポリマーの
吸水能力及び吸水速度などの低下が見られずに、該吸水
ポリマーを構造体内に簡単に固定させ、使用時に受ける
外力よる吸収体のヨレの発生、あるいはポリマーの片寄
り等に基づく吸収性能の低下も防止することができる。The absorbent structure according to the present invention has a structure in which the water-absorbing polymer is easily fixed in the structure without deteriorating the water-absorbing ability and the water-absorbing speed of the absorbent polymer, and the absorbent is subjected to an external force received during use. It is also possible to prevent a decrease in absorption performance due to generation of skew or deviation of the polymer.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｄ０４Ｈ 1/40 1/50 (56)参考文献 特開 平２−74254（ＪＰ，Ａ) 特開 昭51−49979（ＪＰ，Ａ) 特開 平１−280058（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) D04H 1/00 - 5/08 ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 7 Identification symbol FI D04H 1/40 1/50 (56) References JP-A-2-74254 (JP, A) JP-A-51-49979 (JP, A) JP-A-1-280058 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) D04H 1/00-5/08
Claims (7)
吸収性構造体において、該捲縮発現性繊維の捲縮した螺
旋構造内部に吸水性粒状物が保持されており、該吸収性
構造体の縦方向又は横方向の２０％伸長後の回復率が８
０％以上であることを特徴とする吸収性構造体。1. An absorbent structure comprising crimp-forming fibers that are spirally crimped , wherein a water-absorbing particulate material is held inside the crimped spiral structure of the crimp-forming fibers. sex
The recovery rate after 20% elongation in the vertical or horizontal direction of the structure is 8
Absorbent structure characterized by being 0% or more .
有している請求項１記載の吸収性構造体。2. The absorbent structure according to claim 1, which contains the crimp developing fiber in an amount of 50 wt% or more.
水性粒状物の膨潤に追従して三次元構造が変化可能であ
ることを特徴とする請求項１記載の吸収性構造体3. The absorbent structure according to claim 1, wherein the crimp-exhibiting fiber can change its three-dimensional structure following the swelling of the water-absorbing granular material during liquid absorption.
項１記載の吸収性構造体。4. The absorbent structure according to claim 1, further comprising a hydrophilic fiber.
吸収性構造体において、該捲縮発現性繊維の捲縮した螺
旋構造内部に吸水性粒状物が保持されている吸収性構造
体の製造方法であって、上記捲縮発現性繊維を含む吸収
性構造体に上記吸水性粒状物を散布する工程と、該捲縮
発現性繊維の捲縮を発現させる工程とを具備し、該捲縮
発現性繊維の捲縮を発現させる工程において、該捲縮発
現性繊維の捲縮発現前後における面積の収縮率が３０％
以上になるように捲縮を発現させて、上記吸水性構造体
に上記吸水性粒状物を保持させることを特徴とする吸収
性構造体の製造方法。5. A crimp-expressing fiber which is crimped helically.
In the absorbent structure, a crimped screw of the crimp-expressing fiber
A process for producing an absorbent structure absorbent granules inside handed structure is maintained, the step of spraying the upper Symbol absorbent granules to absorbent structures comprising the crimp fibers, the Crimp
Developing a crimp of the developable fiber.
In the step of expressing the crimp of the developing fiber, the crimping
30% area shrinkage before and after crimping of intact fiber
A method for producing an absorbent structure, characterized in that crimps are developed as described above, and the water-absorbent structure is held by the water-absorbent structure.
吸収性構造体において、該捲縮発現性繊維の捲縮した螺
旋構造内部に吸水性粒状物が保持されている吸収性構造
体の製造方法であって、上記捲縮発現性繊維からなる上
記吸収性構造体を捲縮発現温度以上で熱処理し、捲縮を
弱く発現させた後、上記吸水性粒状物を散布する工程と
上記吸収性構造体を熱処理して捲縮を強固に発現させる
工程とを具備し、上記吸水性粒状物を上記繊維の螺旋構
造内部に保持させることを特徴とする吸収性構造体の製
造方法。6. A crimp developing fiber which is crimped helically.
In the absorbent structure, a crimped screw of the crimp-expressing fiber
A method for producing an absorbent structure in which water-absorbing granules are held inside a spiral structure, wherein the absorbent structure made of the crimp-developing fiber is heat-treated at a temperature equal to or higher than a crimp-onset temperature to reduce crimping. After weakly developing, the method comprises a step of spraying the water-absorbent granules and a step of heat-treating the absorbent structure to strongly develop crimp, and the water-absorbent granules are formed inside the spiral structure of the fiber. A method for producing an absorbent structure, comprising:
吸収性構造体において、該捲縮発現性繊維の捲縮した螺
旋構造内部に吸水性粒状物が保持されている吸収性構造
体の製造方法であって、上記吸収性構造体を拡幅および
／または伸長しながら、上記吸水性粒状物を散布する工
程と上記繊維の捲縮を発現させる工程とを具備し、上記
吸収性構造体に上記吸収性粒状物を把持させることを特
徴とする吸収性構造体の製造方法。7. A crimp-expressing fiber that is crimped helically.
In the absorbent structure, a crimped screw of the crimp-expressing fiber
A method for producing an absorbent structure in which water-absorbing granules are held inside a swirling structure, wherein the step of spreading the water-absorbing granules while widening and / or extending the absorbent structure, and the method of producing the fibers And a step of developing crimping of the absorbent structure, and causing the absorbent structure to grip the absorbent granules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3306271A JP3058496B2 (en) | 1991-11-21 | 1991-11-21 | Absorbent structure and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3306271A JP3058496B2 (en) | 1991-11-21 | 1991-11-21 | Absorbent structure and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05140848A JPH05140848A (en) | 1993-06-08 |
| JP3058496B2 true JP3058496B2 (en) | 2000-07-04 |
Family
ID=17955077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3306271A Expired - Fee Related JP3058496B2 (en) | 1991-11-21 | 1991-11-21 | Absorbent structure and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3058496B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3544091B2 (en) * | 1997-02-06 | 2004-07-21 | 花王株式会社 | Absorbent articles |
| JP3979923B2 (en) * | 2002-11-11 | 2007-09-19 | 花王株式会社 | Absorbent articles |
| EP1709948B1 (en) * | 2004-01-27 | 2011-05-11 | Kao Corporation | Absorbing article |
| JP4535858B2 (en) * | 2004-11-30 | 2010-09-01 | 花王株式会社 | Absorbent sheet |
| JP2006198396A (en) * | 2004-12-21 | 2006-08-03 | Kao Corp | Elastic absorber |
| JP2006262916A (en) * | 2005-03-22 | 2006-10-05 | Kao Corp | Absorbent article |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0638814B2 (en) * | 1988-09-08 | 1994-05-25 | ユニ・チャーム株式会社 | Absorbent body for absorbent article and manufacturing method thereof |
-
1991
- 1991-11-21 JP JP3306271A patent/JP3058496B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05140848A (en) | 1993-06-08 |
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