JPH1028700A - Surface sheet of absorptive article - Google Patents
Surface sheet of absorptive articleInfo
- Publication number
- JPH1028700A JPH1028700A JP8186367A JP18636796A JPH1028700A JP H1028700 A JPH1028700 A JP H1028700A JP 8186367 A JP8186367 A JP 8186367A JP 18636796 A JP18636796 A JP 18636796A JP H1028700 A JPH1028700 A JP H1028700A
- Authority
- JP
- Japan
- Prior art keywords
- nonwoven fabric
- hydrophilic
- area
- hydrophobic
- hydrophobic part
- 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.)
- Pending
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、吸収性物品の表面
シートに関し、おむつ、生理用ナプキン、失禁用パッド
等に好適な表面シートに関するものである。更に詳しく
述べれば、本発明は、親水性繊維を主体として構成さ
れ、特定の撥水部面積を有する不織布であり、速やかに
***物が通過し、サラット感が良好である吸収性物品の
表面シートに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a topsheet for absorbent articles, and more particularly to a topsheet suitable for diapers, sanitary napkins, incontinence pads and the like. More specifically, the present invention is a nonwoven fabric mainly composed of hydrophilic fibers and having a specific water-repellent area, through which excrement passes quickly and which has a good salat feeling. It is about.
【０００２】[0002]
【従来の技術】一般に、吸収性物品の表面シートは、排
泄物が速やかに通過し、液残りがなく***物を吸収体へ
移動させることが必要である。このようなサラット感向
上のために、様々な提案がされてきた。例えば、特開昭
５７−１３４０号公報、特開平１-２７７５５９号公報
に代表されるような有孔疎水性シートが多く提案されて
いる。しかし、いずれもシートは疎水性であるため、こ
れらのシートを吸収性物品の表面シートとして使用する
と、微量ではあるがシート上に水分が残留する。この現
象はかぶれの原因となる。また、親水性繊維を用いた湿
式不織布、スパンレース不織布等を吸収性物品の表面シ
ートに使用すると、繊維自身が水分を吸収するために、
サラット感が極端に劣る。2. Description of the Related Art Generally, it is necessary for excrement to pass through a topsheet of an absorbent article without any liquid remaining and to be transferred to an absorber. Various proposals have been made to improve the sense of sarat. For example, many perforated hydrophobic sheets have been proposed as represented by JP-A-57-1340 and JP-A-1-277559. However, since these sheets are hydrophobic, when these sheets are used as a surface sheet of an absorbent article, a small amount of moisture remains on the sheets. This phenomenon causes rash. In addition, when a wet nonwoven fabric using a hydrophilic fiber, a spunlace nonwoven fabric, or the like is used for a top sheet of an absorbent article, the fiber itself absorbs moisture,
Salat feeling is extremely poor.
【０００３】[0003]
【発明が解決しようとする課題】本発明者等は、かかる
状況に鑑み、速やかに***物が通過し、さらにサラット
感の良好な吸収性物品の表面シートについて鋭意研究し
た。その結果、本発明者等は、吸収性物品の表面シート
が親水性繊維を主体としてなる不織布からなり、親水部
（撥水剤が塗布又は印刷されていない）と、撥水剤が塗
布又は印刷されることによってパターン形成される疎水
部とが存在し、さらに疎水部が特定の面積を有する表面
シートが、速やかに***物が通過し、サラット感が良好
であることを見いだし本発明を完成させるに至った。本
発明の目的は、速やかに***物が通過し、サラット感が
良好である吸収性物品の表面シートに関するものであ
る。SUMMARY OF THE INVENTION In view of such circumstances, the present inventors have made intensive studies on a surface sheet of an absorbent article through which excrement passes quickly and which has a good salat feeling. As a result, the present inventors have found that the surface sheet of the absorbent article is formed of a nonwoven fabric mainly composed of hydrophilic fibers, and the hydrophilic portion (where the water repellent is not applied or printed) and the water repellent is applied or printed. The present invention has been found to have a hydrophobic part having a pattern-formed hydrophobic part, and a surface sheet having a specific area where the hydrophobic part has a specific area. Reached. An object of the present invention relates to a topsheet of an absorbent article that allows excrement to pass through quickly and has a good salat feeling.
【０００４】[0004]
【課題を解決するための手段】本発明は、親水性繊維を
主体とする不織布からなる吸収性物品の表面シートにお
いて、前記不織布には、親水部と、撥水剤が塗布又は印
刷されることによってパターン形成される疎水部が存在
し、前記疎水部の面積が不織布の表面積に対して２０〜
７０％であることを特徴とする吸収性物品の表面シート
に存する。According to the present invention, there is provided a surface sheet for an absorbent article comprising a nonwoven fabric mainly comprising hydrophilic fibers, wherein the nonwoven fabric is coated or printed with a hydrophilic portion and a water repellent. There is a hydrophobic part to be formed by the pattern, the area of the hydrophobic part is 20 to the surface area of the nonwoven fabric
70% of the surface sheet of the absorbent article.
【０００５】[0005]
【発明の実施の形態】本発明の吸収性物品の表面シート
は、親水性繊維を主体としている不織布より構成されて
いる。本発明で使用される親水性繊維は、親水性であれ
ば特に制限はなく、例えば、木材パルプ繊維、古紙パル
プ繊維、再生セルロース繊維、コットン等が挙げられ、
それぞれの併用であっても構わない。BEST MODE FOR CARRYING OUT THE INVENTION The surface sheet of the absorbent article of the present invention is composed of a nonwoven fabric mainly composed of hydrophilic fibers. The hydrophilic fiber used in the present invention is not particularly limited as long as it is hydrophilic, and examples thereof include wood pulp fiber, waste paper pulp fiber, regenerated cellulose fiber, and cotton.
They may be used in combination.
【０００６】親水性繊維の長さは、連続性繊維であって
も非連続性繊維であっても良く、積層してシート状態に
なれば特に制限されない。又、親水性繊維の繊度は、
０.５〜１０デニールが好ましい。１０デニールを超え
ると繊維自体が硬くなるために、表面シートの柔軟性が
損なわれ、好ましくない。逆に繊度が０.５デニール未
満の繊維は、製造が困難となり適さない。The length of the hydrophilic fiber may be a continuous fiber or a non-continuous fiber, and is not particularly limited as long as it is laminated to form a sheet. The fineness of the hydrophilic fiber is
0.5 to 10 denier is preferred. If it exceeds 10 denier, the fiber itself becomes hard, and the flexibility of the topsheet is impaired, which is not preferable. Conversely, fibers having a fineness of less than 0.5 denier are difficult to produce and are not suitable.
【０００７】本発明の表面シートは、親水性繊維を主体
とした不織布であるが、合成繊維を混合した不織布であ
ってもよい。合成繊維は、ポリプロピレン、ポリエチレ
ン、ポリスチレン等のポリオレフィン系繊維、ポリエチ
レンテレフタレート、ポリブチレンテレフタレート及び
これらのコポリマー等ポリエステル系繊維、ナイロン
６、ナイロン６６等のポリアミド系繊維、ポリビニルア
ルコール系繊維、アクリル繊維等のポリアクリロニトリ
ル系繊維、ポリ乳酸、脂肪酸ポリエステル等の生分解性
繊維等が挙げられ、これらの中から適宜選択して単独で
或いは混合して用いても良い。特に、熱接着性のある繊
維を配合することはシート強度が強くなり、好ましい。The topsheet of the present invention is a nonwoven fabric mainly composed of hydrophilic fibers, but may be a nonwoven fabric mixed with synthetic fibers. Synthetic fibers include polyolefin fibers such as polypropylene, polyethylene, and polystyrene; polyester fibers such as polyethylene terephthalate, polybutylene terephthalate and copolymers thereof; polyamide fibers such as nylon 6, nylon 66; polyvinyl alcohol fibers; and acrylic fibers. Examples thereof include biodegradable fibers such as polyacrylonitrile-based fibers, polylactic acid, and fatty acid polyester. These may be appropriately selected from these, and may be used alone or in combination. In particular, it is preferable to mix fibers having heat adhesion, since the sheet strength is increased.
【０００８】これらの繊維の形状はステープル状、パル
プ繊維のようにささくれだっているもの等、特に制限は
ない。繊維の断面形状は、円形だけでなく、Ｙ型、中空
円形型等、一般に異型断面といわれる繊維、分割性を有
する繊維、２成分以上を有する複合繊維等でも良く、特
に制限はない。但し、合成繊維の配合率が、不織布全体
の３０重量％より少ない方が好ましい。合成繊維の配合
率が３０重量％を越えて多くなると合成繊維自身には吸
水性がないため、シート表面に微量な水分が残留しやす
く、サラット感が劣るようになる。[0008] The shape of these fibers is not particularly limited, such as a staple shape or a pulp fiber. The cross-sectional shape of the fiber is not limited to a circle, and may be a fiber generally referred to as an irregular cross-section, such as a Y-shaped or hollow circular-shaped fiber, a splittable fiber, or a composite fiber having two or more components, and is not particularly limited. However, it is preferable that the compounding ratio of the synthetic fibers is less than 30% by weight of the whole nonwoven fabric. If the compounding ratio of the synthetic fiber exceeds 30% by weight, since the synthetic fiber itself does not have water absorption, a very small amount of water tends to remain on the sheet surface, and the feeling of sarat becomes inferior.
【０００９】本発明の表面シートを作成するための親水
性繊維の積層方法は、湿式抄紙法、カード法、エアレイ
ド法、スパンボンド法等、特に制限はない。不織布の繊
維を固定しシート化する方法としては、熱エンボス法、
接着剤塗布法、高圧水ジェット処理法、ニードルパンチ
法等均一にシート化されていれば特に制限はない。The method for laminating the hydrophilic fibers for preparing the topsheet of the present invention is not particularly limited, such as a wet papermaking method, a card method, an air laid method, and a spunbond method. As a method of fixing the fibers of the nonwoven fabric and forming a sheet, a hot emboss method,
There is no particular limitation as long as the sheet is formed uniformly, such as an adhesive coating method, a high-pressure water jet treatment method, and a needle punch method.
【００１０】不織布の坪量は、任意に決定しうる事項で
あるが、１５〜１００ｇ／ｍ2が好ましい。坪量が１５
ｇ／ｍ2未満では不織布が薄すぎるため、この不織布を
表面シートとして使用すると、下に配置されている吸収
体のべとつきがそのまま感じられサラット感に劣る。逆
に坪量が１００ｇ／ｍ2を超えると、得られた不織布は
硬くなり、吸収性物品の表面シートとしては適さない。The basis weight of the nonwoven fabric can be arbitrarily determined, but is preferably 15 to 100 g / m 2 . Basis weight 15
If it is less than g / m 2 , the nonwoven fabric is too thin, and if this nonwoven fabric is used as a topsheet, the tackiness of the absorber disposed below is felt as it is, and the feeling of sarat is inferior. On the other hand, when the basis weight exceeds 100 g / m 2 , the obtained nonwoven fabric becomes hard and is not suitable as a surface sheet of an absorbent article.
【００１１】本発明の表面シートは、さらに不織布に撥
水剤が塗布又は印刷される。撥水剤は、パラフィン系、
ピリジニウム塩型撥水剤、メチロールアミド型、エチレ
ンウレア型、シリコーン型、クロミッククロライド型、
フッ素化合物型等が挙げられ、特に制限はない。塗布又
は印刷方法は、スクリーン印刷法、グラビア塗工法が、
低塗布量と模様状パターン塗布が可能であることから好
ましい。このような方法によって撥水剤の塗布又は印刷
を行うことによって、１枚の不織布において、撥水剤処
理を施すことによって形成される疎水部と、撥水剤処理
をされていない親水部の両方がパターン状に存在する。
すなわち、上記撥水処理された不織布を表面シートとし
て使用すると、不織布の親水部において速やかに***物
が通過し、撥水部が存在するためにサラット感が良好に
なる。また、不織布の疎水部の裏面は親水性繊維の吸水
性能がわずかに残っているために、親水部だけでなく、
疎水部の裏面においても、表面シート上にわずかに残留
している水分をも吸引する働きをするため、サラット感
にさらに効果がある。In the topsheet of the present invention, a water repellent is further applied or printed on the nonwoven fabric. The water repellent is paraffin-based,
Pyridinium salt type water repellent, methylolamide type, ethylene urea type, silicone type, chromic chloride type,
Examples include a fluorine compound type, and there is no particular limitation. Coating or printing method, screen printing method, gravure coating method,
It is preferable because a low application amount and a pattern pattern application are possible. By applying or printing the water repellent by such a method, in one nonwoven fabric, both the hydrophobic part formed by performing the water repellent treatment and the hydrophilic part not subjected to the water repellent treatment Exist in a pattern.
In other words, when the water-repellent nonwoven fabric is used as a topsheet, excrement passes through the hydrophilic portion of the nonwoven fabric quickly, and the presence of the water-repellent portion improves the feeling of salat. In addition, the back surface of the hydrophobic portion of the nonwoven fabric has a small amount of the hydrophilic fiber's water-absorbing ability.
Even on the back surface of the hydrophobic part, it also works to suck moisture remaining slightly on the topsheet, which is more effective for a feeling of salat.
【００１２】疎水部の面積は、不織布の表面積に対し
て、２０〜７０％であることが好ましい。疎水部の面積
が不織布の表面積に対して、２０％より小さい不織布を
表面シートとして使用すると、吸収速度は速いがサラッ
ト感に劣り、かぶれにつながる。逆に、疎水部の面積が
７０％を越える不織布を表面シートとして使用すると、
サラット感は良好であるが、吸収速度が遅くなり、***
物が吸収性物品の外に漏れることになり、好ましくな
い。The area of the hydrophobic portion is preferably 20 to 70% based on the surface area of the nonwoven fabric. When a nonwoven fabric having a hydrophobic area of less than 20% of the surface area of the nonwoven fabric is used as a surface sheet, the absorption rate is high but the feeling of sarat is inferior and rash is caused. Conversely, if a nonwoven fabric having a hydrophobic area of more than 70% is used as a topsheet,
Although the feeling of salat is good, the absorption rate is slow, and excrement leaks out of the absorbent article, which is not preferable.
【００１３】疎水部の形状は図１a〜dに示すように、縞
模様、波模様、格子模様、その他の幾何学模様等のパタ
ーン状の疎水部が上記面積割合の範囲以内であれば特に
限定はされない。但し疎水部と親水部は交互に複数存在
することが好ましい。例えば疎水部が、中央部や縁部に
一カ所に固まって存在する不織布を表面シートとして使
用すると、その部分のサラット感は良好であるが、***
物が下に通過しない。それ以外の親水部においては、排
泄物は下に通過するが、サラット感に劣る。それゆえ、
疎水部と親水部は、交互に複数存在することが好まし
い。As shown in FIGS. 1A to 1D, the shape of the hydrophobic portion is not particularly limited as long as the pattern-like hydrophobic portion such as a stripe pattern, a wavy pattern, a lattice pattern, or another geometric pattern is within the above-mentioned area ratio. Is not done. However, it is preferable that a plurality of hydrophobic parts and hydrophilic parts are present alternately. For example, when a nonwoven fabric in which a hydrophobic portion is solidified at a central portion or an edge portion is used as a topsheet, the salat feeling of the portion is good, but excrement does not pass below. In the other hydrophilic part, excrement passes below, but is inferior in salat feeling. therefore,
Preferably, a plurality of hydrophobic parts and hydrophilic parts are present alternately.
【００１４】[0014]
【実施例】以下に実施例を挙げて本発明をより具体的に
説明するが、勿論本発明はこれらによって限定されるも
のではない。EXAMPLES The present invention will be described in more detail with reference to the following Examples, which, of course, are not intended to limit the present invention.
【００１５】実施例１ 繊維長５１ｍｍ、繊度１.５デニールのレーヨン繊維８
５％と、繊維長５１ｍｍ、繊度１.５デニールのポリエ
チレン／ポリプロピレン複合繊維１５％からなる坪量３
５ｇ／ｍ2のウェブをカード法によって作成し、温度１
５０℃の熱エンボスにより熱圧着することによって不織
布を得た。得られた不織布にアミノシリコーン系撥水剤
を、固形分が１.０ｇ／ｍ2になるようにグラビアロール
を使用して塗布し、太さ０.６ｍｍ、ピッチ２.５ｍｍの
疎水部が親水部と交互に配置されているパターン化され
た横縞柄が形成され、この時、疎水部の面積が不織布の
表面積に対して２４％であった。得られた表面シートは
次に示す試験法により吸収速度、サラット感を測定し、
品質を評価した。Example 1 Rayon fiber 8 having a fiber length of 51 mm and a fineness of 1.5 denier
5%, basis weight 3 consisting of 15% polyethylene / polypropylene composite fiber with 51 mm fiber length and 1.5 denier fineness
A web of 5 g / m 2 was prepared by the card method, and the temperature was 1
A nonwoven fabric was obtained by thermocompression bonding with hot embossing at 50 ° C. An aminosilicone-based water repellent is applied to the obtained nonwoven fabric using a gravure roll so that the solid content becomes 1.0 g / m 2, and the hydrophobic portion having a thickness of 0.6 mm and a pitch of 2.5 mm is hydrophilic. The pattern formed horizontal stripes alternately arranged with the nonwoven fabric, and the area of the hydrophobic part was 24% of the surface area of the nonwoven fabric. The obtained topsheet was measured for absorption rate and salat feeling by the following test method.
Evaluated the quality.
【００１６】試験法 （１）吸収速度 吸収性物品の作成 綿状パルプを２００ｇ／ｍ2、及びポリアクリル酸ナト
リウムからなる高吸水性ポリマーを２００ｇ／ｍ2の割
合で用い、これを均一に分布させたものをティッシュで
包み、プレスロールで吸収体全体の緊度が０.１０ｇ／
ｃｍ3となるように調整し、吸収体を得た。ついで、上
述のようにして作成した表面シートとポリエステルから
なる裏面シートの間に上記吸収体を配置し、吸収性物品
を作成した。 測定方法 上記のとおり作成した吸収性物品を使用し、人工尿１０
０ｃｃが吸収性物品に吸収されるまでの時間を測定し
た。吸収速度が６０秒を越えると、大量の***物が***
された場合、吸収性物品の外へ漏れが生じることにな
り、好ましくない。ここで使用した人工尿は次の通りで
ある。 人工尿組成（重量％） 尿素 １.９％ ＮａＣｌ ０.８％ ＣａＣｌ2 ０.１％ ＭｇＳＯ4 ０.１％ 残部は水 （２）サラット感 吸収速度を測定したサンプルを用い、手で表面シートを
さわり、おむつの乾燥状態の評価した。この時の判定は
以下の通り３段階とした。 ◎：非常に乾いている ○：やや乾いている △：やや湿っている ×：湿っている[0016] Test Method (1) absorption rate of the absorbent article for creating fluffy pulp 200 g / m 2, and a superabsorbent polymer consisting of sodium polyacrylate used in a proportion of 200 g / m 2, evenly distributed this Wrap it with tissue and press roll to adjust the overall strength of the absorber to 0.10g /
cm 3 to obtain an absorber. Next, the absorbent was placed between the top sheet prepared as described above and the back sheet made of polyester to prepare an absorbent article. Measurement method Using the absorbent article prepared as described above,
The time until 0 cc was absorbed by the absorbent article was measured. If the absorption rate exceeds 60 seconds, if a large amount of excrement is excreted, it will leak out of the absorbent article, which is not preferable. The artificial urine used here is as follows. Artificial urine composition (% by weight) Urea 1.9% NaCl 0.8% CaCl 2 0.1% MgSO 4 0.1% The balance is water (2) Salat feeling Using a sample whose absorption rate was measured, use a topsheet by hand To evaluate the dry state of the diaper. The judgment at this time was made in three stages as follows. ◎: Very dry ○: Somewhat dry △: Somewhat wet ×: Wet
【００１７】実施例２ 得られた不織布に撥水処理を行う際に、太さ３.０ｍ
ｍ、ピッチ４.５ｍｍの疎水部が親水部と交互に配置さ
れているパターン化された縦縞柄が形成される以外は実
施例１と同様にして表面シートを得た。この時、疎水部
の面積が不織布の表面積に対して６７％であった。得ら
れた表面シートは実施例１と同様にして、試験を行い、
品質を評価した。Example 2 When the obtained nonwoven fabric was subjected to a water-repellent treatment, the thickness was 3.0 m.
A topsheet was obtained in the same manner as in Example 1 except that a patterned vertical stripe pattern in which hydrophobic portions having m and a pitch of 4.5 mm were alternately arranged with hydrophilic portions was formed. At this time, the area of the hydrophobic part was 67% with respect to the surface area of the nonwoven fabric. The obtained topsheet was tested in the same manner as in Example 1,
Evaluated the quality.
【００１８】実施例３ 得られた不織布に撥水処理を行う際に、太さ１.０ｍ
ｍ、縦方向のピッチ３.０ｍｍ、横方向のピッチ３.０ｍ
ｍの疎水部が親水部と交互に配置されているパターン化
された格子縞柄が形成される以外は実施例１と同様にし
て表面シートを得た。この時、疎水部の面積が不織布の
表面積に対して５６％であった。得られた表面シートは
実施例１と同様にして、試験を行い、品質を評価した。Example 3 When the obtained nonwoven fabric was subjected to a water-repellent treatment, the thickness was 1.0 m.
m, vertical pitch 3.0 mm, horizontal pitch 3.0 m
A topsheet was obtained in the same manner as in Example 1 except that a patterned lattice stripe pattern in which m hydrophobic portions were alternately arranged with hydrophilic portions was formed. At this time, the area of the hydrophobic part was 56% of the surface area of the nonwoven fabric. The obtained topsheet was tested and the quality was evaluated in the same manner as in Example 1.
【００１９】実施例４ 得られた不織布に撥水処理を行う際に、縦２.０ｍｍ、
横２.０ｍｍの正方形で、縦方向のピッチ３.０ｍｍ、横
方向のピッチ３.０ｍｍで配置されている疎水部が親水
部と交互に配置されているパターン化された格子縞柄が
形成される以外は実施例１と同様にして表面シートを得
た。この時、疎水部の面積が不織布の表面積に対して４
４％であった。得られた表面シートは実施例１と同様に
して、試験を行い、品質を評価した。Example 4 When the obtained nonwoven fabric was subjected to a water-repellent treatment, the length was 2.0 mm,
A square lattice having a width of 2.0 mm, a patterned lattice stripe pattern in which hydrophobic portions arranged at a vertical pitch of 3.0 mm and a horizontal pitch of 3.0 mm are alternately arranged with hydrophilic portions is formed. Except for the above, a surface sheet was obtained in the same manner as in Example 1. At this time, the area of the hydrophobic part is 4 to the surface area of the nonwoven fabric.
4%. The obtained topsheet was tested and the quality was evaluated in the same manner as in Example 1.
【００２０】実施例５ 繊維長７ｍｍ、繊度１.５デニールのレーヨン繊維７０
％と、ろ水度４００ｍｌＣＳＦの針葉樹晒クラフトパル
プ繊維３０％を用い、湿式法により坪量３５ｇ／ｍ2の
ウェブを作製し、水分４％まで乾燥した。７６メッシュ
の平織プラスチックからなる移送コンベアー上に載置
し、ウェブを１５ｍ／分の速度で移送させながら、孔径
０．１ｍｍのノズル孔が０．６４ｍｍ間隔で千鳥状に並
んでいる高圧水ジェット流噴射装置を３列用いて、３５
ｋｇ／ｃｍ2の水圧で高圧水ジェット流を、ウェブの表
面から裏面へ水ジェット流が貫通するように噴射した。
その後、温度１５０℃の熱風乾燥機で乾燥させ、不織布
を得た。得られた不織布に撥水処理を行う際に、太さ
３.０ｍｍ、ピッチ４.５ｍｍの疎水部が親水部と交互に
配置されているパターン化された縦縞柄が形成される以
外は実施例１と同様にして表面シートを得た。この時、
疎水部の面積が不織布の表面積に対して６７％であっ
た。得られた表面シートは実施例１と同様にして、試験
を行い、品質を評価した。Example 5 Rayon fiber 70 having a fiber length of 7 mm and a fineness of 1.5 denier
% And a 30% coniferous bleached kraft pulp fiber having a freeness of 400 ml CSF, a web having a basis weight of 35 g / m 2 was produced by a wet method and dried to a moisture content of 4%. A high-pressure water jet stream is placed on a transfer conveyor made of 76-mesh plain woven plastic, and while the web is being transported at a speed of 15 m / min, nozzle holes having a diameter of 0.1 mm are arranged in a zigzag pattern at 0.64 mm intervals. Using three rows of injectors, 35
A high-pressure water jet stream was sprayed at a water pressure of kg / cm 2 so that the water jet stream penetrated from the front surface to the back surface of the web.
Then, it dried with the hot air dryer of 150 degreeC temperature, and obtained the nonwoven fabric. Except that when performing a water-repellent treatment on the obtained nonwoven fabric, a patterned vertical stripe pattern in which hydrophobic portions having a thickness of 3.0 mm and a pitch of 4.5 mm are alternately arranged with hydrophilic portions is formed. In the same manner as in Example 1, a topsheet was obtained. At this time,
The area of the hydrophobic portion was 67% based on the surface area of the nonwoven fabric. The obtained topsheet was tested and the quality was evaluated in the same manner as in Example 1.
【００２１】比較例１ 得られた不織布に撥水処理を行う際に、太さ１.０ｍ
ｍ、ピッチ７.０ｍｍの疎水部が親水部と交互に配置さ
れているパターン化された縦縞柄が形成される以外は実
施例１と同様にして表面シートを得た。この時、疎水部
の面積が不織布の表面積に対して１４％であった。得ら
れた表面シートは実施例１と同様にして、試験を行い、
品質を評価した。Comparative Example 1 When the obtained nonwoven fabric was subjected to a water-repellent treatment, the thickness was 1.0 m.
A topsheet was obtained in the same manner as in Example 1 except that a patterned vertical stripe pattern in which hydrophobic portions having m and a pitch of 7.0 mm were alternately arranged with hydrophilic portions was formed. At this time, the area of the hydrophobic part was 14% with respect to the surface area of the nonwoven fabric. The obtained topsheet was tested in the same manner as in Example 1,
Evaluated the quality.
【００２２】比較例２ 得られた不織布に撥水処理を行う際に、太さ２.０ｍ
ｍ、縦方向ピッチ３.０ｍｍ、横方向のピッチ３.０ｍｍ
の疎水部が親水部と交互に配置されているパターン化さ
れた縦縞柄が形成される以外は実施例１と同様にして表
面シートを得た。この時、疎水部の面積が不織布の表面
積に対して８９％であった。得られた表面シートは実施
例１と同様にして、試験を行い、品質を評価した。Comparative Example 2 When the obtained nonwoven fabric was subjected to a water-repellent treatment, the thickness was 2.0 m.
m, vertical pitch 3.0mm, horizontal pitch 3.0mm
A surface sheet was obtained in the same manner as in Example 1, except that a patterned vertical stripe pattern in which hydrophobic portions were alternately arranged with hydrophilic portions was formed. At this time, the area of the hydrophobic part was 89% with respect to the surface area of the nonwoven fabric. The obtained topsheet was tested and the quality was evaluated in the same manner as in Example 1.
【００２３】比較例３ 得られた不織布に撥水処理を行う際に、不織布前面に行
われる以外は実施例１と同様にして表面シートを得た。
得られた表面シートは実施例１と同様にして、試験を行
い、品質を評価した。Comparative Example 3 A surface sheet was obtained in the same manner as in Example 1 except that the obtained nonwoven fabric was subjected to a water-repellent treatment, except that the treatment was performed on the front surface of the nonwoven fabric.
The obtained topsheet was tested and the quality was evaluated in the same manner as in Example 1.
【００２４】比較例４ 得られた不織布に撥水処理を行わない以外は実施例１と
同様にして表面シートを得た。得られた表面シートは実
施例１と同様にして、試験を行い、品質を評価した。Comparative Example 4 A topsheet was obtained in the same manner as in Example 1 except that the obtained nonwoven fabric was not subjected to a water-repellent treatment. The obtained topsheet was tested and the quality was evaluated in the same manner as in Example 1.
【００２５】実施例１〜５及び比較例１〜４で得られた
結果を表１に示す。Table 1 shows the results obtained in Examples 1 to 5 and Comparative Examples 1 to 4.
【００２６】[0026]
【表１】 [Table 1]
【００２７】表１から分かるように、本発明により得ら
れる表面シートは、速やかに***物が通過し、サラット
感が良好なものである。これに対し、疎水部の面積が不
織布の表面積に対して２０％より小さい（比較例１）
と、吸収速度は速いがサラット感に劣る。逆に疎水部の
面積が不織布の表面積に対して７０％より大きくなる
（比較例２）と、サラット感は良好であるが、吸収速度
が遅くなる。また、疎水部の面積が特定の割合を有して
いても、中央部に存在する（比較例３）と、疎水部では
***物が下に通過しないために、***物の流れが生じ、
漏れにつながる。逆に、撥水処理を行わない（比較例
４）と吸収速度は速いが、サラット感に劣る。As can be seen from Table 1, the topsheet obtained according to the present invention allows excrement to pass through quickly and has a good salat feeling. On the other hand, the area of the hydrophobic part is smaller than 20% of the surface area of the nonwoven fabric (Comparative Example 1).
In this case, the absorption speed is high, but the feeling of salat is inferior. Conversely, when the area of the hydrophobic portion is larger than 70% of the surface area of the nonwoven fabric (Comparative Example 2), the feeling of salat is good, but the absorption rate is low. Further, even if the area of the hydrophobic part has a specific ratio, if it is present in the central part (Comparative Example 3), since the excrement does not pass down in the hydrophobic part, the flow of the excretion occurs,
Leads to leakage. Conversely, when the water-repellent treatment is not performed (Comparative Example 4), the absorption rate is high, but the feeling of salat is inferior.
【００２８】[0028]
【発明の効果】以上説明したように、本発明の吸収性物
品の表面シートが、親水性繊維を主体として形成された
不織布によってなり、さらに不織布は、親水部と、撥水
剤を塗布又は印刷することによってパターン形成される
疎水部が存在するとともに、疎水部が特定の割合の面積
を有することによって、不織布の親水部において速やか
に***物が通過し、撥水部が存在するためにサラット感
が良好になる。また、不織布の疎水部の裏面は親水性繊
維の吸水性能がわずかに残っているために、親水部だけ
でなく、疎水部の裏面においても、表面シート上にわず
かに残留している水分をも吸引する働きをするため、サ
ラット感にさらに効果がある。As described above, the surface sheet of the absorbent article of the present invention is made of a nonwoven fabric formed mainly of hydrophilic fibers, and the nonwoven fabric is coated or printed with a hydrophilic portion and a water repellent. The presence of the hydrophobic part formed by the patterning and the presence of a specific proportion of the hydrophobic part allow the excrement to pass through the hydrophilic part of the nonwoven fabric quickly, and the presence of the water-repellent part provides a sense of salat. Becomes better. In addition, since the back surface of the hydrophobic portion of the nonwoven fabric has a small amount of the hydrophilic fiber's water absorption performance, not only the hydrophilic portion but also the back surface of the hydrophobic portion can remove moisture remaining on the topsheet. Since it works to suck, it has a further effect on the feeling of salat.
【図１】本発明の疎水部の形状を示す図FIG. 1 is a view showing a shape of a hydrophobic portion of the present invention.
１：疎水部 ２：親水部 1: hydrophobic part 2: hydrophilic part
Claims (1)
吸収性物品の表面シートにおいて、 前記不織布には、親水部と、撥水剤が塗布又は印刷され
ることによってパターン形成される疎水部とが存在し、
前記疎水部の面積が不織布の表面積に対して２０〜７０
％であることを特徴とする吸収性物品の表面シート。1. A topsheet of an absorbent article comprising a nonwoven fabric mainly composed of hydrophilic fibers, wherein the nonwoven fabric has a hydrophilic part and a hydrophobic part which is patterned by applying or printing a water repellent. Exists,
The area of the hydrophobic portion is 20 to 70 with respect to the surface area of the nonwoven fabric.
% Of the surface sheet of the absorbent article.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8186367A JPH1028700A (en) | 1996-07-16 | 1996-07-16 | Surface sheet of absorptive article |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8186367A JPH1028700A (en) | 1996-07-16 | 1996-07-16 | Surface sheet of absorptive article |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1028700A true JPH1028700A (en) | 1998-02-03 |
Family
ID=16187147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8186367A Pending JPH1028700A (en) | 1996-07-16 | 1996-07-16 | Surface sheet of absorptive article |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1028700A (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998056326A1 (en) * | 1997-06-13 | 1998-12-17 | Texon Uk Limited | Material suitable for use in absorbing liquid and method of making same |
| JP2003310663A (en) * | 2002-02-22 | 2003-11-05 | Kao Corp | Disposable diaper |
| JP2003319972A (en) * | 2002-04-30 | 2003-11-11 | Kao Corp | Throw-away diaper |
| JP2005021389A (en) * | 2003-07-02 | 2005-01-27 | Kao Corp | Absorbent article |
| JP2005508223A (en) * | 2001-11-05 | 2005-03-31 | ザ プロクター アンド ギャンブル カンパニー | Article comprising an impregnated thermoplastic member and method for producing the same |
| KR100494481B1 (en) * | 2001-07-18 | 2005-06-13 | 주식회사 한진피앤씨 | Water repellent finish non woven fabric of puncture for physiology pad |
| JP2005193001A (en) * | 2003-12-11 | 2005-07-21 | Kao Corp | Surface sheet of absorptive article |
| KR100823630B1 (en) | 2007-04-12 | 2008-04-21 | 웅진케미칼 주식회사 | Fabric having improved moisture peameability and water repellency and manufacturing method thereof |
| US7626073B2 (en) | 2004-02-11 | 2009-12-01 | The Procter & Gamble Co. | Hydrophobic surface coated absorbent articles and associated methods |
| CN101892557A (en) * | 2009-05-22 | 2010-11-24 | 大王制纸株式会社 | Absorbability article |
| JP2010279621A (en) * | 2009-06-05 | 2010-12-16 | Daio Paper Corp | Absorbent article |
| JP2010279605A (en) * | 2009-06-05 | 2010-12-16 | Daio Paper Corp | Pad type absorptive article |
| EP2316290A1 (en) * | 2009-10-29 | 2011-05-04 | Formosa Taffeta Co.,Ltd. | Unilateral sweat-absorbing quick-drying comfortable fabric and method for preparing the same |
| JP2011189065A (en) * | 2010-03-16 | 2011-09-29 | Daio Paper Corp | Absorbent article |
| KR101127784B1 (en) * | 2003-12-11 | 2012-03-26 | 카오카부시키가이샤 | Topsheet of absorbent article |
| JP2012135470A (en) * | 2010-12-27 | 2012-07-19 | Kao Corp | Surface sheet of absorbent article |
| JP2012136786A (en) * | 2010-12-24 | 2012-07-19 | Jnc Corp | Functional sheet |
| JP2017113226A (en) * | 2015-12-24 | 2017-06-29 | 花王株式会社 | Surface sheet for absorbent article |
| WO2019167191A1 (en) * | 2018-02-28 | 2019-09-06 | ユニ・チャーム株式会社 | Animal excrement disposal sheet |
-
1996
- 1996-07-16 JP JP8186367A patent/JPH1028700A/en active Pending
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998056326A1 (en) * | 1997-06-13 | 1998-12-17 | Texon Uk Limited | Material suitable for use in absorbing liquid and method of making same |
| KR100494481B1 (en) * | 2001-07-18 | 2005-06-13 | 주식회사 한진피앤씨 | Water repellent finish non woven fabric of puncture for physiology pad |
| JP2005508223A (en) * | 2001-11-05 | 2005-03-31 | ザ プロクター アンド ギャンブル カンパニー | Article comprising an impregnated thermoplastic member and method for producing the same |
| JP2003310663A (en) * | 2002-02-22 | 2003-11-05 | Kao Corp | Disposable diaper |
| JP2003319972A (en) * | 2002-04-30 | 2003-11-11 | Kao Corp | Throw-away diaper |
| JP2005021389A (en) * | 2003-07-02 | 2005-01-27 | Kao Corp | Absorbent article |
| JP2005193001A (en) * | 2003-12-11 | 2005-07-21 | Kao Corp | Surface sheet of absorptive article |
| KR101127784B1 (en) * | 2003-12-11 | 2012-03-26 | 카오카부시키가이샤 | Topsheet of absorbent article |
| US8097767B2 (en) | 2004-02-11 | 2012-01-17 | The Procter & Gamble Company | Hydrophobic surface coated absorbent articles and associated methods |
| US7626073B2 (en) | 2004-02-11 | 2009-12-01 | The Procter & Gamble Co. | Hydrophobic surface coated absorbent articles and associated methods |
| KR100823630B1 (en) | 2007-04-12 | 2008-04-21 | 웅진케미칼 주식회사 | Fabric having improved moisture peameability and water repellency and manufacturing method thereof |
| CN101892557A (en) * | 2009-05-22 | 2010-11-24 | 大王制纸株式会社 | Absorbability article |
| JP2010269029A (en) * | 2009-05-22 | 2010-12-02 | Daio Paper Corp | Absorbent article |
| JP2010279621A (en) * | 2009-06-05 | 2010-12-16 | Daio Paper Corp | Absorbent article |
| JP2010279605A (en) * | 2009-06-05 | 2010-12-16 | Daio Paper Corp | Pad type absorptive article |
| EP2316290A1 (en) * | 2009-10-29 | 2011-05-04 | Formosa Taffeta Co.,Ltd. | Unilateral sweat-absorbing quick-drying comfortable fabric and method for preparing the same |
| JP2011189065A (en) * | 2010-03-16 | 2011-09-29 | Daio Paper Corp | Absorbent article |
| JP2012136786A (en) * | 2010-12-24 | 2012-07-19 | Jnc Corp | Functional sheet |
| JP2012135470A (en) * | 2010-12-27 | 2012-07-19 | Kao Corp | Surface sheet of absorbent article |
| JP2017113226A (en) * | 2015-12-24 | 2017-06-29 | 花王株式会社 | Surface sheet for absorbent article |
| WO2019167191A1 (en) * | 2018-02-28 | 2019-09-06 | ユニ・チャーム株式会社 | Animal excrement disposal sheet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH1028700A (en) | Surface sheet of absorptive article | |
| JP6193391B2 (en) | Absorbent articles with channels and signals | |
| JP3734407B2 (en) | Absorbent articles | |
| EP3434239B1 (en) | Absorbent article | |
| EP3085346B1 (en) | Nonwoven carrier for absorbent article | |
| EP2901992B1 (en) | Multi-layer absorbent material | |
| JP4476102B2 (en) | Absorbent article surface sheet | |
| JP2002153510A (en) | Absorptive article | |
| RU2248809C2 (en) | Perforated nonwoven glued material | |
| CN111182870A (en) | Topsheet comprising natural fibers | |
| JP2011062227A (en) | Absorptive article | |
| KR101013921B1 (en) | Front face sheet and intralabial pad | |
| BE1022334B1 (en) | Corrugated structure for an absorbent article | |
| JP4212953B2 (en) | Water-decomposable absorbent article | |
| JP2019080907A (en) | Absorbent article | |
| JPH09562A (en) | Absorptive article | |
| JP6960381B2 (en) | Absorbent article | |
| JP5067808B2 (en) | Perforated non-woven sheet and method for producing the same | |
| JPH1028702A (en) | Surface sheet for absorbing article | |
| TWI805894B (en) | Hygroscopic sheet, disposable wearing article and manufacturing method thereof | |
| JP5238449B2 (en) | Absorbent article surface sheet | |
| TWI355261B (en) | Topsheet for absorbent article and absorbent arti | |
| RU2771693C1 (en) | Absorbent product | |
| US20070049886A1 (en) | Absorbent web with improved integrity and methods for making the same | |
| EP1917938A1 (en) | Cover material for an absorbent article including a skin care composition and an absorbent article having a cover material including a skin care composition |