JPH0638814B2 - Absorbent body for absorbent article and manufacturing method thereof - Google Patents
Absorbent body for absorbent article and manufacturing method thereofInfo
- Publication number
- JPH0638814B2 JPH0638814B2 JP63225059A JP22505988A JPH0638814B2 JP H0638814 B2 JPH0638814 B2 JP H0638814B2 JP 63225059 A JP63225059 A JP 63225059A JP 22505988 A JP22505988 A JP 22505988A JP H0638814 B2 JPH0638814 B2 JP H0638814B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- mat
- fibers
- water
- absorbent
- 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 - Lifetime
Links
Landscapes
- Absorbent Articles And Supports Therefor (AREA)
- Nonwoven Fabrics (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、吸収性物品用吸収体に関し、さらに詳しく
は、使い捨てオムツ、生理用ナプキンなどの吸水復元性
を有する吸収体およびその製造方法に関する。Description: TECHNICAL FIELD The present invention relates to an absorbent article for absorbent articles, and more specifically to an absorbent article having a water absorption restoration property such as disposable diapers and sanitary napkins, and a method for producing the same. .
従来、この種の吸収体であって圧縮し、吸水復元するも
のは枚挙にいとまがない。しかし、一般に、いずれの吸
収体も、吸水能、保形性、強度性、吸水復元性、復元弾
性といった性能とコストの両面で満足すべきものではな
い。Heretofore, there is no shortage of enumerations of this type of absorber that compresses and restores water absorption. However, generally, none of the absorbers is satisfactory in terms of performance such as water absorption capacity, shape retention, strength, water absorption restoration property, and recovery elasticity and cost.
これら公知の吸収体は、不織布、綿状パルプ、熱溶融性
繊維の単独または組み合せを主材とし、場合により、こ
れに高吸水性ポリマー粒子を混合して圧縮成形したもの
である。しかし、構成繊維（不織布のそれを含む）とし
て、吸収体の充分な骨格構造を構成するとともに圧縮復
元性を有するものが用いられていないため、とくに吸水
湿潤下での保形性、強度性、圧縮復元弾性が低い。These known absorbers are mainly made of non-woven fabric, cotton-like pulp, or heat-fusible fiber alone or in combination, and optionally super-absorbent polymer particles are mixed and compression-molded. However, as the constituent fibers (including those of non-woven fabric), those which constitute a sufficient skeletal structure of the absorbent body and have compression-restoring property are not used, and therefore, the shape retention property, the strength property, and the like particularly in the wetted water absorption, Low compression elasticity.
本発明の目的は、綿状パルプ、高吸水性ポリマー粒子の
ほかに、捲縮し、かつ、立体的網状構造を構成すること
ができるとともに、吸収体の充分な骨格構造を付与した
熱溶融繊維、とくに融点の異なる少なくとも二成分から
なる複合繊維を用いることにより、体液の吸収前では小
嵩でありながら、その吸収後では復元して嵩、弾性およ
び吸収容量を増大させることができる吸収体およびその
製造方法を提供することにある。The object of the present invention is, in addition to cotton-like pulp and superabsorbent polymer particles, a heat-melting fiber which can be crimped and can have a three-dimensional network structure, and which has a sufficient skeleton structure of the absorber. In particular, by using a composite fiber composed of at least two components having different melting points, an absorbent body which is small in volume before absorption of body fluid but can be restored after absorption to increase bulk, elasticity and absorption capacity, and It is to provide the manufacturing method.
前記目的を達成するため、本発明にかかる吸収体は、綿
状パルプ、吸水性ポリマー粒子のほかに、所要の繊度・
重量％の熱溶融捲縮繊維を用い、この繊維を互いに部分
的融着して立体的網状構造を構成し、体液の吸収後に所
要密度に復元可能な程度に圧縮してえられるものであ
る。In order to achieve the above object, the absorbent body according to the present invention has a required fineness in addition to cotton-like pulp and water-absorbing polymer particles.
It is obtained by using heat-melted crimped fibers at a weight percentage and partially adhering these fibers to each other to form a three-dimensional network structure, which is compressed to such a degree that it can be restored to a required density after absorbing body fluid.
ここに、立体的網状構造とは、一次元、二次元方向ばか
りでなく三次元方向にも繊維が延びて複雑に交絡すると
ともに、その繊維の交点の少なくとも一部で融着してい
る状態をいう。Here, the three-dimensional network structure means that the fibers extend not only in the one-dimensional and two-dimensional directions but also in the three-dimensional directions and are intricately entangled, and that they are fused at at least a part of the intersections of the fibers. Say.
この立体的網状構造を構成する前記熱溶融捲縮繊維とし
ては、融点の異なる少なくとも二成分からなる複合繊維
であり、前記融着はその低融点繊維を介してなされ、少
なくともその高融点繊維が骨格を構成していることが好
ましい。The hot-melt crimped fiber forming the three-dimensional network structure is a composite fiber composed of at least two components having different melting points, and the fusion is performed through the low-melting fiber, and at least the high-melting fiber is a skeleton. Is preferably configured.
さらに、本発明にかかる吸収体の製造方法においては、
所要の前記構成材料、圧縮密度などのほかに、圧縮時に
特定量の水またはバインダー水溶液を吸収体に含浸させ
る。Furthermore, in the method for producing an absorber according to the present invention,
In addition to the required constituent materials, compression density, etc., the absorber is impregnated with a specific amount of water or a binder aqueous solution during compression.
前記構成を有し、かつ、前記方法でえられる吸収体は、
体液を吸収すると圧縮が解かれて復元する、換言する
と、密度が低下して嵩（厚さ）が増大する。その結果、
弾性（クッション性）および吸液容量が増大する。The absorber having the above structure and obtained by the above method,
When body fluid is absorbed, the compression is released and restored, in other words, the density is decreased and the bulk (thickness) is increased. as a result,
Elasticity (cushioning property) and liquid absorption capacity increase.
さらに、前記水またはバインダー水溶液の含浸による構
成材料の結合で、吸収体の圧縮状態の保持をはかる一
方、体液の吸収でその結合を解き、前記復元を容易なら
しめる。Further, by binding the constituent materials by impregnating the water or the aqueous binder solution, the compressed state of the absorbent body is maintained, while the binding is released by absorbing the body fluid to facilitate the restoration.
図面を参照して、本発明の実施例を説明すると、以下の
とおりである。An embodiment of the present invention will be described below with reference to the drawings.
吸収体： 吸収体１は、熱溶融捲縮繊維２と、綿状パルプ３と、吸
水性ポリマー粒子４との混合からマット状体に構成して
ある。Absorber: The absorber 1 is formed of a mixture of the hot-melt crimped fibers 2, the cotton-like pulp 3 and the water-absorbent polymer particles 4 into a mat-like body.
熱溶融捲縮繊維は、融点の異なる少なくとも二成分から
なるもの、たとえば、ポリエチレン−ポリプロピレンの
複合フィルム、ポリエチレン−ポリプロピレン−ポリエ
チレンの複合フィルムを周面に多数の刃針を有するロー
ラで処理して短繊維化したもの、ポリエチレン−ポリプ
ロピレンのサイド バイ サイド型または鞘−芯型の複
合繊維などである。こうした繊維は、三次元方向に延び
て絡み、低融点成分、たとえばポリエチレン成分を介し
て部分的に融着し、かつ、高融点成分、たとえばポリプ
ロピレン成分が主として骨格として機能する立体的網状
構造を構成している。したがって、この網状構造は圧縮
復元性に優れており、吸収体の後記吸水復元作用に大い
に寄与する。この寄与のためには、繊維は、捲縮し、か
つ、部分的に融着して立体的網状構造を構成しているほ
かに、使用量および繊度が不可欠要素となる。使用量は
10〜70重量％、好ましくは30〜40重量％である。圧縮復
元性だけを考慮すれば、使用量が大きいほどよいが、吸
収体中の吸水保持機能を果す綿状パルプおよびポリマー
粒子の所要量をも確保しなければならないから、最高使
用量は70重量％を限度とする必要がある。繊度は10〜10
0d、好ましくは20〜50dである。さらに繊維の捲縮につ
いて言及すると、物理的に捲縮を発現させたもの、すな
わち、複合繊維のそれぞれの融点の差異を利用して熱処
理することで捲縮を発現させたものと、機械的に捲縮を
付与したもの、すなわち、繊維を周面に多数の凹凸条を
有する加熱ロール間に通して捲縮を付与したものとのい
ずれでもよいが、後者が吸収体の製造過程における後記
熱処理との関係で寸法安定性に優れている。前者および
後者のいずれにしても、捲縮数は１インチ当り３〜40個
であることが好ましい。繊維長はとくに制限されない
が、一般に短繊維といわれているもの、すなわち、５〜
100mm、好ましくは30〜60mmである。The hot-melt crimped fiber is made of at least two components having different melting points, for example, a polyethylene-polypropylene composite film or a polyethylene-polypropylene-polyethylene composite film is treated with a roller having a large number of blade needles on its peripheral surface to be short-cut. Fibers, polyethylene-polypropylene side-by-side type or sheath-core type composite fibers, and the like are included. These fibers extend in three-dimensional directions and are entangled with each other, partially fused through a low melting point component such as a polyethylene component, and a high melting point component such as a polypropylene component constitutes a three-dimensional network structure mainly functioning as a skeleton. is doing. Therefore, this network structure is excellent in compression recovery, and greatly contributes to the later-described water absorption recovery action of the absorbent body. For this contribution, the fibers are crimped and partially fused to form a three-dimensional network structure, and the amount used and the fineness are essential factors. How much is used
It is 10 to 70% by weight, preferably 30 to 40% by weight. Considering only compression resilience, the larger the amount used, the better, but it is also necessary to secure the required amount of cotton-like pulp and polymer particles that fulfill the function of absorbing water in the absorber, so the maximum amount of use is 70 wt. It is necessary to limit it to%. Fineness is 10 to 10
It is 0d, preferably 20 to 50d. Furthermore, referring to crimps of fibers, those that physically develop crimps, that is, those that develop crimps by heat treatment utilizing the difference in melting points of the composite fibers, It may be crimped, that is, it may be crimped by passing the fiber between heating rolls having a large number of ridges and valleys on the peripheral surface, but the latter is a heat treatment described later in the manufacturing process of the absorber. Therefore, the dimensional stability is excellent. In both the former and latter cases, the number of crimps is preferably 3 to 40 per inch. The fiber length is not particularly limited, but is generally called short fiber, that is, 5 to
It is 100 mm, preferably 30 to 60 mm.
綿状パルプは、パルプシートをガーネットなどにより粉
砕してえられる繊維長５mm以下のものである。この使用
量は、10〜70重量％、好ましくは20〜55重量％である。The cotton-like pulp has a fiber length of 5 mm or less obtained by crushing a pulp sheet with garnet or the like. The amount used is 10 to 70% by weight, preferably 20 to 55% by weight.
ポリマー粒子は、一般に使い捨てオムツ、生理用ナプキ
ンなどの吸収材として用いられている、水不溶にして自
重の数10倍の吸水保持能を有するものである。たとえ
ば、架橋されたポリアクリル酸塩およびアクリル酸−ア
クリル酸エステル共重合体、自己架橋型ポリアクリル酸
塩、デンプンアクリロニトリルグラフト共重合体の加水
分解物などである。この使用量は、５〜50重量％、好ま
しくは10〜40重量％である。The polymer particles are generally used as an absorbent material for disposable diapers, sanitary napkins, and the like, and are water-insoluble and have a water-absorbing capacity of several tens of times their own weight. Examples thereof include crosslinked polyacrylates and acrylic acid-acrylic acid ester copolymers, self-crosslinking polyacrylic acid salts, and hydrolysates of starch acrylonitrile graft copolymers. The amount used is 5 to 50% by weight, preferably 10 to 40% by weight.
なお、ポリマー粒子は、立体的網状構造を構成する捲縮
繊維を球状ないし楕円球状に間欠的に被覆するように、
換言すれば、該繊維が該球状ないし楕円球状のポリマー
粒子を貫通するように、該捲縮繊維に一体的に結合して
いてもよい。こうした結合は、たとえば、繊維集合体に
モノマー溶液を噴霧付着させたのち、該モノマーを重合
処理することによりうることができる。Incidentally, the polymer particles are such that the crimped fibers constituting the three-dimensional network structure are intermittently coated in a spherical shape or an elliptic spherical shape,
In other words, the fibers may be integrally bonded to the crimped fibers so as to penetrate the spherical or ellipsoidal polymer particles. Such a bond can be obtained by, for example, spraying a monomer solution onto the fiber assembly and then polymerizing the monomer.
こうした混合材料から構成した吸収体は、坪量100〜700
g/m2を有することが使い捨てオムツ、生理用ナプキンな
どの吸収体として必要である。また、この吸収体は、後
述するように、混合材料をマット状体に集合した状態
で、必要に応じて少量の水またはバインダー水溶液の介
在下に、厚さ方向に圧縮し、その密度を0.033〜0.7g/cm
3となしてある。吸収体の圧縮密度は、前記数値範囲で
あれば、全域にわたって均一である必要がなく、たとえ
ば、吸収体の中央域を高密度に、その周辺域を低密度
に、または中央域を低密度に、その周辺域を高密度に、
さらには、中央域から周辺域へまたは周辺域から中央域
へ漸次低密度になるようになしてもよい。こうした密度
変化は、各域ごとに圧縮のための加工圧力を異ならせる
ほか、各域における混合材料の分配（厚さ）を異ならせ
ることにより与えることができる。吸収体の厚さは、１
〜３mmである。Absorbers composed of such mixed materials have a basis weight of 100-700.
It is necessary to have g / m 2 as an absorbent body for disposable diapers, sanitary napkins and the like. Further, as will be described later, this absorbent body, in a state where the mixed material is collected in a mat-like body, is compressed in the thickness direction with the presence of a small amount of water or a binder aqueous solution, if necessary, and its density is 0.033. ~ 0.7g / cm
It is said to be 3 . If the compression density of the absorber is within the above numerical range, it is not necessary to be uniform over the entire region. For example, the central region of the absorber may have a high density, its peripheral region may have a low density, or the central region may have a low density. , The surrounding area with high density,
Further, the density may gradually decrease from the central region to the peripheral region or from the peripheral region to the central region. Such a density change can be provided by making the processing pressure for compression different in each zone and by making the distribution (thickness) of the mixed material in each zone different. Absorber thickness is 1
~ 3 mm.
こうした構成を有する吸収体は、乾燥状態での引張強度
100g/25mm以上、好ましくは200g/25mm以上である。ま
た、ほぼ吸水飽和状態での圧縮復元率が30％以上、好ま
しくは50％以上である。Absorbers with this structure have a tensile strength in a dry state.
It is 100 g / 25 mm or more, preferably 200 g / 25 mm or more. Further, the compression recovery rate in a substantially water-saturated state is 30% or more, preferably 50% or more.
吸収体の製造方法： 機械的に捲縮を付与した前記熱溶融複合繊維と、前記綿
状パルプと、前記吸水性ポリマー粒子とを、所定量の割
合でほぼ均一に混合して密度0.003〜0.023g/cm3のマッ
ト状体に集積する。このマット状体をローラなどにより
その厚さ方向に軽く加圧して密度0.005〜0.035g/cm3に
仮圧縮する。この仮圧縮は、単に前記材料を集積しただ
けではあまりにも嵩が大きくて次処理工程での処理に支
障を来したり、該工程への移送中における型崩れ防止の
ためになすものである。この仮圧縮マット状体は、これ
に対して水またはバインダー水溶液、たとえば、ＣＭＣ
水溶液やＰＶＡ水溶液0.5〜10重量％をほぼ均一に噴霧
して含浸させたのち、ローラなどによりその厚さ方向に
圧縮して厚さ１〜３mm、密度0.033〜0.7g/cm3に圧縮し
て固化することにより、吸収体の製造を完了する。Absorber manufacturing method: Mechanically crimped hot-melt composite fibers, the cotton-like pulp, and the water-absorbing polymer particles are mixed almost uniformly at a predetermined ratio to obtain a density of 0.003 to 0.023. Accumulate on a mat-like body of g / cm 3 . This mat-like body is lightly pressed in the thickness direction by a roller or the like to be temporarily compressed to a density of 0.005 to 0.035 g / cm 3 . This temporary compression is too bulky to simply accumulate the above-mentioned materials and hinders the processing in the next processing step, or prevents the shape from being lost during the transfer to the step. This temporary compression mat-like body is made of water or an aqueous binder solution, such as CMC.
An aqueous solution or PVA aqueous solution of 0.5 to 10% by weight is sprayed and impregnated almost uniformly, and then compressed in a thickness direction by a roller or the like to a thickness of 1 to 3 mm and a density of 0.033 to 0.7 g / cm 3. The solidification completes the production of the absorber.
この製造方法の場合、前記熱溶融複合繊維には、予め、
機械的捲縮を与えてあるから、これに加えて前記熱処理
で前記複合繊維が捲縮を発現してマット状体が任意形態
に変形することが少ない、換言すれば、前記熱処理時で
の形態安定性が良好である。In the case of this manufacturing method, the hot-melt composite fiber, in advance,
Since a mechanical crimp is applied, in addition to this, the composite fiber rarely develops a crimp in the heat treatment and the mat-like body is not deformed into an arbitrary shape, in other words, the shape at the time of the heat treatment. Good stability.
本発明では、もう一つの製造方法を採ることができる。In the present invention, another manufacturing method can be adopted.
この方法では、前記複合繊維に予め機械的捲縮を与え
ず、前記熱処理で前記複合繊維に捲縮を発現させるもの
で、その他の工程は前記製造方法と同じである。In this method, the composite fiber is not subjected to mechanical crimping in advance, and the composite fiber is crimped by the heat treatment, and the other steps are the same as those in the manufacturing method.
この方法では、前記熱処理で前記複合繊維に捲縮を発現
させるから、前記熱処理時でのマット状体の形態安定性
に欠けるうらみがある。しかし、予めマット状体の変形
を考慮して設計することなどで対応することもできるの
で、前記製造方法の次善の策として採ることができる。In this method, since crimps are developed in the composite fiber by the heat treatment, there is undulation that lacks the morphological stability of the mat-like body during the heat treatment. However, since it can be dealt with by designing in consideration of the deformation of the mat-like body in advance, it can be adopted as the second best measure of the manufacturing method.
前記いずれの製造方法においても、既述したように、吸
収体の圧縮密度は、前記数値範囲、すなわち、0.033〜
0.7g/cm3であれば、全域にわたって均一である必要がな
い。In any of the above manufacturing methods, as described above, the compression density of the absorber is in the above numerical range, that is, 0.033 to.
If it is 0.7 g / cm 3 , it is not necessary to be uniform over the entire area.
前記いずれの製造方法においても、圧縮成形したマット
状体である吸収体は、或る量の水分を吸収するのでなけ
れば、復元せずその状態を保持するが、この保持は、圧
縮時に含浸させた水またはバインダー水溶液のバインダ
ー機能、水素結合、摩擦係合、一時的歪みが相俟ってな
されるものと考えられる。その圧縮復元は、吸収体が吸
水飽和状態であるとき最高に達するが、そのときの密度
は0.01〜0.035g/cm3に復元する。吸収体を既述の重量の
材料から構成する場合、その最終圧縮密度が0.033〜0.7
g/cm3よりも高くなるように圧縮したり、前記水または
バインダー水溶液を10重量％を超えて含浸させたりする
と、所期の吸水復元を期待することができない。In any of the above production methods, the compression-molded mat-shaped absorbent body retains its state without being restored unless it absorbs a certain amount of water. It is considered that the binder function of water or an aqueous binder solution, hydrogen bonding, frictional engagement, and temporary strain are combined. Its compression recovery reaches its maximum when the absorber is saturated with water absorption, and the density at that time is restored to 0.01 to 0.035 g / cm 3 . If the absorber is composed of a material of the stated weight, its final compressed density is between 0.033 and 0.7.
If the material is compressed so that it is higher than g / cm 3 or if the water or the binder aqueous solution is impregnated in an amount of more than 10% by weight, the desired water absorption restoration cannot be expected.
本発明にかかる吸収体によれば、吸収体の構成素材とし
て、所定量の綿状パルプおよび吸水性ポリマー粒子のほ
かに、所定の繊度・所定量の熱溶着捲縮繊維を用いると
ともに、該捲縮繊維で部分的に融着した立体的網状構造
を構成してあるから、吸収体の充分な骨格構造を有し、
吸水湿潤下での保形性、強度性、圧縮復元弾性に優れ
る。しかも、吸収体は体液の吸収前では小嵩であるか
ら、この吸収体を用いた使い捨てオムツや生理用ナプキ
ンなどの形態も小嵩となり、これらの包装、搬送、店頭
陳列などに便利であり、かつ、使用による体液の吸収後
では嵩が増大して吸収容量が増大するとともに股間部に
フィットして体液の漏れ防止に役立つ。According to the absorbent body of the present invention, as the constituent material of the absorbent body, in addition to a predetermined amount of cotton-like pulp and water-absorbent polymer particles, a predetermined fineness and a predetermined amount of heat-welded crimped fiber are used, and Since it has a three-dimensional network structure partially fused with crimped fibers, it has a sufficient skeletal structure of the absorber,
It excels in shape retention, strength, and compression / recovery elasticity under water absorption. Moreover, since the absorbent body is small in volume before absorbing body fluids, the forms of disposable diapers and sanitary napkins using this absorbent body are also small in volume, which is convenient for packaging, transporting, and displaying at stores, etc. In addition, after absorption of body fluid due to use, the bulk increases and the absorption capacity increases, and at the same time, it fits in the crotch portion and helps prevent leakage of body fluid.
また、本発明にかかる吸収体の製造方法によれば、遅く
とも圧縮処理を施すまでの間に熱溶融繊維に捲縮を付与
しまたは発現させるから、こうした繊維でないものに比
較して、その圧縮による交絡、摩擦係合が多くなって、
その圧縮状態の保持に寄与する。さらに、その圧縮時に
は水またはバインダー水溶液を含浸させるから、その保
持が一層良好である一方、その保持が比較的多量の体液
の吸収で解かれる。Further, according to the method for producing an absorbent body of the present invention, since crimps are imparted to or expressed in the hot-melt fiber at the latest until the compression treatment, it is possible to compress the hot-melt fiber by comparison with the non-fiber. Entanglement and frictional engagement increased,
It contributes to maintaining the compressed state. Furthermore, since the water or binder aqueous solution is impregnated during the compression, the retention is better, while the retention is released by absorption of a relatively large amount of body fluid.
また、本発明にかかる吸収体およびその製造方法によれ
ば、前記熱溶着繊維として融点の異なる少なくとも二成
分からなるものを用いているから、その融点の低い成分
を介して融着させ、その融点の高い成分を骨格として利
用することにより、前記性能を有する立体的網状構造を
構成することができる。Further, according to the absorbent body and the method for producing the same according to the present invention, since the heat-welding fiber made of at least two components having different melting points is used, it is fused through the component having a low melting point, By using a component having a high content as a skeleton, a three-dimensional network structure having the above performance can be formed.
第１図は本発明にかかる吸収体の部分概略斜視図、第２
図は同上の部分拡大図である。 １……吸収体、２……熱溶融捲縮繊維 ３……綿状パルプ、４……吸水性ポリマー粒子FIG. 1 is a partial schematic perspective view of an absorber according to the present invention, FIG.
The figure is a partially enlarged view of the above. 1 ... Absorber, 2 ... Hot-melt crimped fiber 3 ... Cotton pulp, 4 ... Water-absorbing polymer particles
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｄ０４Ｈ 1/50 7199−3Ｂ 1/54 Ｚ 7199−3Ｂ 1/64 Ｚ 7199−3Ｂ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification number Office reference number FI technical display location D04H 1/50 7199-3B 1/54 Z 7199-3B 1/64 Z 7199-3B
Claims (5)
繊維と、10〜70重量％の綿状パルプと、５〜50重量％の
吸水性ポリマー粒子との混合からなり、前記捲縮繊維が
互いに部分的に融着して立体的網状構造を構成している
坪量100〜700g/m2のマット状体であって、該マット状体
が圧縮密度0.033〜0.7g/cm3にその厚さ方向に圧縮され
ており、吸水復元性を有することを特徴とする吸収性物
品用吸収体。1. A mixture of hot-melt crimped fibers having a fineness of 10 to 100 d and 10 to 70% by weight, 10 to 70% by weight of cotton-like pulp, and 5 to 50% by weight of water-absorbing polymer particles, A mat-like body having a basis weight of 100 to 700 g / m 2 in which the crimped fibers partially fuse with each other to form a three-dimensional network structure, and the mat-like body has a compression density of 0.033 to 0.7 g / An absorbent article for absorbent articles, which is compressed to cm 3 in its thickness direction and has water absorption restoration properties.
つの成分からなり、その低融点繊維を介して前記融着が
なされている請求項１記載の吸収体。2. The absorbent body according to claim 1, wherein the crimped fibers are composed of at least two components having different melting points, and the fusion is performed through the low melting point fibers.
縮を与えた熱溶融繊維と、10〜70重量％の綿状パルプ
と、５〜50重量％の吸水性ポリマー粒子とを混合して坪
量100〜700g/m2のマット状体に形成する工程と、 前記マット状体を熱処理して前記捲縮繊維を部分的に融
着させる工程と、 前記熱処理したマット状体に対して0.5〜10重量％の水
またはバインダー水溶液を含浸させる工程と、 前記含浸させたマット状体をその厚さ方向に圧縮密度0.
033〜0.7g/cm3になるように圧縮する工程と、 を含み、吸水復元性を有する吸収性物品用吸収体の製造
方法。3. Mechanically crimped hot melt fibers having a fineness of 10 to 100 d.10 to 70% by weight, 10 to 70% by weight of cotton-like pulp, and 5 to 50% by weight of water-absorbing polymer particles. And a step of forming a mat-like body having a basis weight of 100 to 700 g / m 2 , a step of heat-treating the mat-like body to partially fuse the crimped fibers, the heat-treated mat-like body A step of impregnating 0.5 to 10% by weight of water or a binder aqueous solution with respect to the body, and a compression density of the impregnated mat-like body in the thickness direction of 0.
A method for producing an absorbent article for absorbent articles, comprising a step of compressing so as to obtain 033 to 0.7 g / cm 3 , and having water absorption restoration property.
も二つの成分からなるものを用い、その低融点繊維を介
して前記融着をなす請求項３記載の吸収体。4. The absorbent body according to claim 3, wherein the crimped fibers are composed of at least two components having different melting points, and the fusion is performed through the low melting point fibers.
る繊度10〜100d・10〜70重量％の熱溶融複合繊維と、10
〜70重量％の綿状パルプと、５〜50重量％の吸水性ポリ
マー粒子とを混合して坪量100〜700g/m2のマット状体に
形成する工程と、 前記複合繊維のうち低融点繊維の融点付近の温度で前記
マット状体を熱処理して該複合繊維に捲縮を発現させる
とともに該低融点繊維を介して該複合繊維を融着させる
工程と、 前記熱処理したマット状体に対して0.5〜10重量％の水
またはバインダー水溶液を含浸させる工程と、 前記含浸させたマット状体をその厚さ方向に圧縮密度0.
033〜0.7g/cm3になるように圧縮する工程と、 を含み、吸水復元性を有する吸収性物品用吸収体の製造
方法。5. A hot-melt composite fiber having a fineness of 10 to 100 d.10 to 70% by weight, comprising at least two components having different melting points, and 10.
70% by weight of cotton-like pulp, and forming into a mat-like body of a mixture of 5 to 50% by weight of the water-absorbing polymer particles basis weight 100~700g / m 2, the low melting point of said composite fibers A step of heat-treating the mat-like material at a temperature near the melting point of the fiber to develop crimps in the composite fiber and fusing the composite fiber through the low-melting-point fiber; 0.5 to 10% by weight of water or an aqueous binder solution is impregnated, and the impregnated mat-like body is compressed to a density of 0.
A method for producing an absorbent article for absorbent articles, comprising a step of compressing so as to obtain 033 to 0.7 g / cm 3 , and having water absorption restoration property.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63225059A JPH0638814B2 (en) | 1988-09-08 | 1988-09-08 | Absorbent body for absorbent article and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63225059A JPH0638814B2 (en) | 1988-09-08 | 1988-09-08 | Absorbent body for absorbent article and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0274254A JPH0274254A (en) | 1990-03-14 |
| JPH0638814B2 true JPH0638814B2 (en) | 1994-05-25 |
Family
ID=16823396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63225059A Expired - Lifetime JPH0638814B2 (en) | 1988-09-08 | 1988-09-08 | Absorbent body for absorbent article and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0638814B2 (en) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2995079B2 (en) * | 1990-08-03 | 1999-12-27 | ユニ・チャーム株式会社 | Liquid absorption block |
| JPH0819609B2 (en) * | 1990-08-30 | 1996-02-28 | 株式会社日本触媒 | Absorbent manufacturing method |
| JP2541694B2 (en) * | 1990-08-30 | 1996-10-09 | 株式会社日本触媒 | Absorber and absorbent article |
| JPH0819610B2 (en) * | 1990-08-30 | 1996-02-28 | 株式会社日本触媒 | Absorber manufacturing method |
| JP2544013B2 (en) * | 1990-08-30 | 1996-10-16 | 株式会社日本触媒 | Absorber and absorbent article |
| US5460622A (en) * | 1991-01-03 | 1995-10-24 | The Procter & Gamble Company | Absorbent article having blended multi-layer absorbent structure with improved integrity |
| JP3058496B2 (en) * | 1991-11-21 | 2000-07-04 | 花王株式会社 | Absorbent structure and manufacturing method thereof |
| JP3481240B2 (en) * | 1992-05-06 | 2003-12-22 | ザ、プロクター、エンド、ギャンブル、カンパニー | Fiber board and method of manufacturing absorbent product using the fiber board |
| JP3155368B2 (en) * | 1992-09-16 | 2001-04-09 | 花王株式会社 | Absorbent articles |
| JP3408565B2 (en) * | 1992-12-24 | 2003-05-19 | 積水化成品工業株式会社 | Water absorbing sheet and method for producing the same |
| JPH0727523U (en) * | 1993-06-22 | 1995-05-23 | ユニ・チャーム株式会社 | Disposable undergarment |
| JP3489140B2 (en) * | 1993-07-08 | 2004-01-19 | チッソ株式会社 | Absorbent articles |
| JP3469385B2 (en) * | 1996-01-10 | 2003-11-25 | 花王株式会社 | Absorbent articles |
| TW387807B (en) | 1996-12-24 | 2000-04-21 | Kao Corp | The method of manufacturing absorbent articles and absorbent materials |
| JP3544091B2 (en) * | 1997-02-06 | 2004-07-21 | 花王株式会社 | Absorbent articles |
| US6419865B1 (en) | 1997-09-30 | 2002-07-16 | Kimberly-Clark Worldwide, Inc. | Bonded fluff structures and process for producing same |
| WO1999062447A1 (en) * | 1998-05-29 | 1999-12-09 | Toyo Eizai Kabushiki Kaisha | Disposable underpants and method of continuous manufacturing them |
| JP3916205B2 (en) | 2001-04-06 | 2007-05-16 | ユニ・チャーム株式会社 | Absorbent article, absorbent body for absorbent article, and method for producing the same |
| JP3875595B2 (en) * | 2002-06-25 | 2007-01-31 | ユニ・チャーム株式会社 | Water-absorbing structure and method for producing the same |
| JP3979923B2 (en) * | 2002-11-11 | 2007-09-19 | 花王株式会社 | Absorbent articles |
| KR101400703B1 (en) | 2006-03-23 | 2014-05-29 | 가오 가부시키가이샤 | Absorbent article and process for production thereof |
| JP2008125602A (en) * | 2006-11-17 | 2008-06-05 | Kao Corp | Absorber and absorbent article using it |
| JP5248936B2 (en) * | 2008-06-30 | 2013-07-31 | 大王製紙株式会社 | Disposable diapers |
| JP6863105B2 (en) * | 2017-06-09 | 2021-04-21 | 王子ホールディングス株式会社 | Disposable diapers |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53139868A (en) * | 1977-05-12 | 1978-12-06 | Chisso Corp | Production of composite nonnwoven fabric |
| JPS5691052A (en) * | 1979-12-26 | 1981-07-23 | Honshu Paper Co Ltd | Dry nonwoven laminate containing high water absorbing polymer |
| JPS5710334A (en) * | 1980-06-23 | 1982-01-19 | Kao Corp | Absorptive article |
| JPS588175A (en) * | 1981-07-02 | 1983-01-18 | 瑞光鉄工株式会社 | Production of water absorbing material |
| JPS58180614A (en) * | 1982-04-12 | 1983-10-22 | Daiwa Spinning Co Ltd | Polyolefin type eccentric composite fiber and preparation apparatus therefor |
| JPS5991052A (en) * | 1982-11-18 | 1984-05-25 | 旭化成株式会社 | High-frequency adhesive body |
| JPS6111044A (en) * | 1984-06-28 | 1986-01-18 | ユニ・チヤ−ム株式会社 | Absorber in sanitary article and its production |
| JPS6127433A (en) * | 1984-07-19 | 1986-02-06 | Matsushita Electric Ind Co Ltd | Fixing device for compressor of integrated air conditioner |
| JPS6162463A (en) * | 1984-08-31 | 1986-03-31 | 三洋化成工業株式会社 | Absorbing material and its production |
| JPS61141361A (en) * | 1984-12-12 | 1986-06-28 | ユニ・チヤ−ム株式会社 | Absorbing body of sanitary article |
| JPS6214007B2 (en) * | 1981-09-07 | 1987-03-31 | Sumitomo Kinzoku Kogyo Kk | |
| JPS63117753A (en) * | 1986-11-05 | 1988-05-21 | 花王株式会社 | Absorbable article |
| JPS63135549A (en) * | 1986-11-28 | 1988-06-07 | チッソ株式会社 | Production of nonwoven fabric |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6214007U (en) * | 1985-07-09 | 1987-01-28 |
-
1988
- 1988-09-08 JP JP63225059A patent/JPH0638814B2/en not_active Expired - Lifetime
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53139868A (en) * | 1977-05-12 | 1978-12-06 | Chisso Corp | Production of composite nonnwoven fabric |
| JPS5691052A (en) * | 1979-12-26 | 1981-07-23 | Honshu Paper Co Ltd | Dry nonwoven laminate containing high water absorbing polymer |
| JPS5710334A (en) * | 1980-06-23 | 1982-01-19 | Kao Corp | Absorptive article |
| JPS588175A (en) * | 1981-07-02 | 1983-01-18 | 瑞光鉄工株式会社 | Production of water absorbing material |
| JPS6214007B2 (en) * | 1981-09-07 | 1987-03-31 | Sumitomo Kinzoku Kogyo Kk | |
| JPS58180614A (en) * | 1982-04-12 | 1983-10-22 | Daiwa Spinning Co Ltd | Polyolefin type eccentric composite fiber and preparation apparatus therefor |
| JPS5991052A (en) * | 1982-11-18 | 1984-05-25 | 旭化成株式会社 | High-frequency adhesive body |
| JPS6111044A (en) * | 1984-06-28 | 1986-01-18 | ユニ・チヤ−ム株式会社 | Absorber in sanitary article and its production |
| JPS6127433A (en) * | 1984-07-19 | 1986-02-06 | Matsushita Electric Ind Co Ltd | Fixing device for compressor of integrated air conditioner |
| JPS6162463A (en) * | 1984-08-31 | 1986-03-31 | 三洋化成工業株式会社 | Absorbing material and its production |
| JPS61141361A (en) * | 1984-12-12 | 1986-06-28 | ユニ・チヤ−ム株式会社 | Absorbing body of sanitary article |
| JPS63117753A (en) * | 1986-11-05 | 1988-05-21 | 花王株式会社 | Absorbable article |
| JPS63135549A (en) * | 1986-11-28 | 1988-06-07 | チッソ株式会社 | Production of nonwoven fabric |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0274254A (en) | 1990-03-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0638814B2 (en) | Absorbent body for absorbent article and manufacturing method thereof | |
| CA1251902A (en) | Perf-embossed absorbent structure | |
| JP2963647B2 (en) | Absorbent sheet and method for producing the same | |
| KR100341414B1 (en) | Mixed-bed ion-exchange hydrogel-forming polymer compositions and absorbent members comprising relatively high concentrations of these compositions | |
| JP4508889B2 (en) | Absorbent articles | |
| US8124827B2 (en) | Absorbent core | |
| EP0858791B1 (en) | Absorbent article | |
| US4826498A (en) | Absorbent pad, particularly for articles of hygiene | |
| JPS59135149A (en) | Composite body laminate | |
| JPH07121270B2 (en) | Absorbent products | |
| EP1417946B2 (en) | Absorbent article and process for producing an absorbent member for an absorbent article | |
| JP2907916B2 (en) | Absorbing panel for body fluid absorbent articles worn | |
| WO2005070363A1 (en) | Absorbing article | |
| KR100669123B1 (en) | A disposable absorbing structure | |
| JP3408565B2 (en) | Water absorbing sheet and method for producing the same | |
| JP3408566B2 (en) | Water absorbing sheet and method for producing the same | |
| JP2007175093A (en) | Absorbent article | |
| JPH06190003A (en) | Water absorption sheet and preparation thereof | |
| JPH03173562A (en) | Absorber for sanitary products | |
| EP0638134B1 (en) | Absorbent material and a method of making same | |
| JP2955222B2 (en) | Body fluid absorbent articles | |
| EP0172035B1 (en) | Thin soft absorbent product | |
| JP3126510B2 (en) | Super absorbent nonwoven material | |
| JPH0638813B2 (en) | Absorber | |
| JPH05331775A (en) | Absorbing article and its production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090525 Year of fee payment: 15 |