JP2003275240A - Absorptive article - Google Patents
Absorptive articleInfo
- Publication number
- JP2003275240A JP2003275240A JP2002083187A JP2002083187A JP2003275240A JP 2003275240 A JP2003275240 A JP 2003275240A JP 2002083187 A JP2002083187 A JP 2002083187A JP 2002083187 A JP2002083187 A JP 2002083187A JP 2003275240 A JP2003275240 A JP 2003275240A
- Authority
- JP
- Japan
- Prior art keywords
- absorbent
- woven fabric
- liquid
- skin
- absorbent body
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、主には生理用ナプ
キン、おりものシート、失禁パッド、医療用パッド、ト
イレタリー等に使用される薄型吸収性物品のように吸収
体が比較的薄くて固い場合であっても、装着時に違和感
を感じさせないようにするとともに、隠蔽性を高めた吸
収性物品に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sanitary napkin, a vaginal discharge sheet, an incontinence pad, a medical pad, a thin absorbent article used for toiletries, etc. Even in the case, the present invention relates to an absorbent article in which discomfort is not felt at the time of wearing and the concealing property is enhanced.
【０００２】[0002]
【従来の技術】従来より、パンティライナー、生理用ナ
プキン、失禁パッドなどの吸収性物品として、ポリエチ
レンシートまたはポリエチレンシートラミネート不織布
などの不透液性裏面シートと、不織布または透液性プラ
スチックシートなどの透液性表面シートとの間に綿状パ
ルプ等からなる吸収体を介在したものが知られている。2. Description of the Related Art Conventionally, as absorbent articles such as panty liners, sanitary napkins and incontinence pads, liquid impermeable back sheets such as polyethylene sheets or polyethylene sheet laminated nonwoven fabrics and nonwoven fabrics or liquid permeable plastic sheets etc. It is known that an absorbent body made of cotton-like pulp or the like is interposed between the liquid-permeable topsheet and the liquid-permeable topsheet.
【０００３】近年は、比較的嵩のある吸収性物品の場合
には、持ち運びに不便である、または収納性が悪いなど
の問題があるとともに、物流の効率化や省資源化などの
要請から、吸収体の厚みが約３mm以下の薄型吸収性物品
が好まれる傾向にある。吸収性物品の薄型化に際して
は、薄型化やコンパクト化が成されても吸水量を落とす
ことは出来ないため、必然的に高吸水性樹脂の含有率を
上げたり、ポリマーシートを使用したりするとともに、
吸収体に対して過酷なプレスを施すことにより薄型化を
図ることが多く行われている。In recent years, in the case of relatively bulky absorbent articles, there are problems that they are inconvenient to carry or have poor storability, and there is a demand for efficient distribution and resource saving. Thin absorbent articles having an absorber thickness of about 3 mm or less tend to be preferred. When thinning the absorbent article, it is not possible to reduce the water absorption even if it is made thin or compact, so inevitably increase the content of super absorbent resin or use a polymer sheet With
It is often attempted to reduce the thickness by subjecting the absorber to severe pressing.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、吸収体
をプレス加工により薄型化したものは、吸収体（粉砕パ
ルプ）の積密度が極端に上がるため、吸収体が固くなり
着用者がゴワ付き感を感じるようになる。また、吸収体
が薄いため、経血が吸収体の下面側（非肌面側）に直ぐ
に到達し、不透液性裏面シート側から経血色が透けて見
えるようになるなどひどく外観を損ねる場合があった。However, when the absorbent body is made thin by press working, the product density of the absorbent body (crushed pulp) is extremely increased, so that the absorbent body becomes hard and the wearer feels stiff. I feel it. Also, when the absorbent body is thin, menstrual blood immediately reaches the lower surface side (non-skin surface side) of the absorbent body, and the menstrual blood color can be seen through from the liquid-impervious back sheet side. was there.
【０００５】そこで本発明の主たる課題は、吸収体が比
較的薄くて固い薄型吸収性物品の場合であっても、装着
時に肌当接面及び側面部分に柔らかさを与え、装着感を
良好にするとともに、非肌面側における隠蔽性を高める
ようにした吸収性物品を提供することにある。Therefore, the main object of the present invention is to give a softness to the skin contact surface and side surface portions at the time of wearing to improve the feeling of wearing even in the case of a thin absorbent article having a relatively thin and hard absorber. In addition, the present invention is to provide an absorbent article which is improved in concealing property on the non-skin surface side.
【０００６】[0006]
【課題を解決するための手段】前記課題を解決するため
に請求項１に係る本発明として、透液性表面シートと不
透液性裏面シートとの間に吸収体が介在された吸収性物
品において、前記透液性表面シートと吸収体との間、お
よび前記不透液性裏面シートと吸収体との間にそれぞ
れ、不織布を配置したことを特徴とする吸収性物品が提
供される。In order to solve the above problems, the present invention according to claim 1 provides an absorbent article having an absorbent body interposed between a liquid-permeable top sheet and a liquid-impermeable back sheet. In the absorbent article, there is provided a non-woven fabric between the liquid-permeable topsheet and the absorber, and between the liquid-impermeable backsheet and the absorber.
【０００７】上記請求項１記載の発明においては、比較
的薄くて固い吸収体の感触を和らげるために、吸収体の
上面及び下面側にそれぞれ不織布を配置した。従って、
前記不織布によって装着時に肌面およびサイド面に対し
柔軟性、クッション性を与えるため装着感が良好とな
る。また、非肌面側では前記不織布によって隠蔽性が向
上し経血等を目立たないようにする。According to the first aspect of the invention, in order to soften the feel of the absorbent body which is relatively thin and hard, nonwoven fabrics are arranged on the upper and lower surfaces of the absorbent body. Therefore,
The non-woven fabric imparts flexibility and cushioning properties to the skin surface and the side surface at the time of wearing, so that the wearing feeling becomes good. Further, on the non-skin surface side, the non-woven fabric improves the concealing property so that menstrual blood or the like is inconspicuous.
【０００８】請求項２に係る本発明として、前記吸収体
は、密度が０．１g/cm3以上であり、かつＫＥＳ圧縮試
験機によるＷＣ値（圧縮エネルギー）が０．８gf・cm/cm
2未満である請求項１記載の吸収性物品が提供される。
本発明は主に前記物性の吸収体に対し適用されると効果
が顕著となる。According to a second aspect of the present invention, the absorber has a density of 0.1 g / cm 3 or more and a WC value (compression energy) of 0.8 gf · cm / cm measured by a KES compression tester.
An absorbent article according to claim 1 of less than 2 is provided.
When the present invention is mainly applied to the absorber having the above physical properties, the effect becomes remarkable.
【０００９】請求項３に係る本発明として、前記不織布
は単一のシートにより前記吸収体の上面側又は下面側に
おいて端部同士を重ね合わせた状態で吸収体を包み込ん
である請求項１、２いずれかに記載の吸収性物品が提供
される。前記不織布は吸収体を巻き込むように配置する
のが望ましく、かつ上面側で重ね合わせれば装着感がよ
り向上し、下面側で重ね合わせれば隠蔽性が向上するよ
うになる。According to a third aspect of the present invention, the non-woven fabric encloses the absorbent body in a state in which the end portions of the non-woven fabric are superposed on the upper surface side or the lower surface side of the absorbent body by a single sheet. An absorbent article according to any one is provided. It is desirable that the non-woven fabric is arranged so as to wrap the absorbent body, and if it is overlapped on the upper surface side, the wearing feeling is further improved, and if it is overlapped on the lower surface side, the hiding property is improved.
【００１０】請求項４に係る本発明として、前記不織布
は、吸収体の肌面側に配置された不織布が親水性を有
し、吸収体の非肌面側に配置された不織布が撥水性を有
する請求項１〜３いずれかに記載の吸収性物品が提供さ
れる。前記不織布は、肌面側は体液等の吸収性から親水
性を有し、非肌面側は湿り感がないように撥水性を有す
るのが望ましい。According to a fourth aspect of the present invention, in the non-woven fabric, the non-woven fabric disposed on the skin side of the absorber has hydrophilicity, and the non-woven fabric disposed on the non-skin side of the absorber has water repellency. An absorbent article according to any one of claims 1 to 3 is provided. It is desirable that the non-woven fabric has water repellency on the skin side to absorb body fluids and the like, and water-repellency so that the non-skin side does not feel wet.
【００１１】請求項５に係る本発明として、前記不織布
として、吸収体の肌面側に不織布を配置した状態におけ
る肌面側からのＫＥＳ圧縮試験機によるＷＣ値（圧縮エ
ネルギー）が０．８gf・cm/cm2以上にし得る物性値のも
のを使用している請求項１〜４いずれかに記載の吸収性
物品が提供される。In the present invention according to claim 5, as the nonwoven fabric, the WC value (compression energy) from the skin surface side in a state where the nonwoven fabric is arranged on the skin surface side of the absorber is 0.8 gf. The absorbent article according to any one of claims 1 to 4, wherein the absorbent article has a physical property value capable of being at least cm / cm 2 .
【００１２】請求項６に係る本発明として、前記不織布
はエアースルー不織布を用いている請求項１〜５いずれ
かに記載の吸収性物品が提供される。The present invention according to claim 6 provides the absorbent article according to any one of claims 1 to 5, wherein the nonwoven fabric is an air-through nonwoven fabric.
【００１３】請求項７に係る本発明として、前記不織布
は、吸収体の非肌面側に配置された不織布がフィルムを
貼り合わせたラミネート不織布であり、吸収体の肌面側
に配置された不織布が不織布単体である請求項１〜６い
ずれかに記載の吸収性物品が提供される。According to a seventh aspect of the present invention, the non-woven fabric is a laminated non-woven fabric in which a non-skin face disposed on the non-skin side of the absorber is laminated with a film, and the non-woven fabric disposed on the skin face side of the absorber. The absorbent article according to any one of claims 1 to 6, which is a non-woven fabric alone.
【００１４】請求項８に係る本発明として、前記不織布
の光透過率は７０％以下である請求項１〜７いずれかに
記載の吸収性物品が提供される。The present invention according to claim 8 provides the absorbent article according to any one of claims 1 to 7, wherein the nonwoven fabric has a light transmittance of 70% or less.
【００１５】[0015]
【発明の実施の形態】以下、本発明の実施の形態につい
て図面を参照しながら詳述する。図１は本発明に係る薄
型生理用ナプキン１の一部破断斜視図である。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a partially cutaway perspective view of a thin sanitary napkin 1 according to the present invention.
【００１６】薄型生理用ナプキン１は、主にはパンティ
ライナー、生理用ナプキン、おりものシート、失禁パッ
ドなどの用途に供されるもので、例えば図１に示される
ように、不透液性裏面シート２と、透液性表面シート３
との間に、吸収体４または同図に示すように、前記吸収
体４とこれを囲繞するクレープ紙４Ｂとからなる吸収体
ユニット５が介在されるとともに、前記透液性表面シー
ト３と吸収体４との間、および前記不透液性裏面シート
２と吸収体４との間にそれぞれ、装着感の向上および外
面側の隠蔽性を向上するため不織布６を配置した構造と
なっている。前記吸収体４の周囲においては、前記不透
液性裏面シート２と透液性表面シート３とがホットメル
ト接着剤等の接着手段によって接合されている。The thin sanitary napkin 1 is mainly used for panty liners, sanitary napkins, vaginal sheets, incontinence pads and the like. For example, as shown in FIG. Sheet 2 and liquid-permeable surface sheet 3
Between the absorbent body 4 and the absorbent body unit 5 composed of the absorbent body 4 and the crepe paper 4B surrounding the absorbent body 4 as shown in FIG. A non-woven fabric 6 is arranged between the body 4 and between the liquid-impermeable back sheet 2 and the absorbent body 4 in order to improve the feeling of wearing and the concealment of the outer surface. Around the absorber 4, the liquid-impermeable backsheet 2 and the liquid-permeable topsheet 3 are joined by an adhesive means such as a hot melt adhesive.
【００１７】前記不透液性裏面シート２は、ポリエチレ
ン、ポリプロピレン等の少なくとも遮水性を有するシー
ト材が用いられるが、この他に防水フィルムを介在して
実質的に不透液性を確保した上で不織布シート（この場
合には、防水フィルムと不織布とで不透液性裏面シート
を構成する。）などを用いることができる。近年はムレ
防止の観点から透湿性を有するものが好適に用いられる
傾向にある。この遮水・透湿性シート材としては、ポリ
エチレンやポリプロピレン等のオレフィン系樹脂中に無
機充填剤を溶融混練してシートを成形した後、一軸また
は二軸方向に延伸することにより得られる微多孔性シー
トが好適に用いられる。The liquid-impervious back sheet 2 is made of a sheet material having at least water-blocking property such as polyethylene and polypropylene. In addition to this, a waterproof film is interposed to ensure substantially liquid-impermeability. And a non-woven fabric sheet (in this case, the waterproof film and the non-woven fabric form a liquid-impervious back sheet). In recent years, from the viewpoint of preventing stuffiness, those having moisture permeability tend to be preferably used. This water-impermeable / moisture-permeable sheet material is obtained by melt-kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene to form a sheet, and then stretching the sheet uniaxially or biaxially A sheet is preferably used.
【００１８】前記透液性表面シート３としては、無孔ま
たは有孔の不織布または多孔性プラスチックシートなど
が好適に用いられる。前記不織布を構成する素材繊維と
しては、たとえばポリエチレンまたはポリプロピレン等
のオレフィン系、ポリエステル系、ポリアミド系等の合
成繊維の他、レーヨンやキュプラ等の再生繊維、綿等の
天然繊維とすることができる。また、融点の高い繊維を
芯とし融点の低い繊維を鞘とした芯鞘型繊維やサイド−
バイ−サイド型繊維、分割型繊維等の複合繊維を好適に
用いることもできる。As the liquid-permeable surface sheet 3, a non-porous or perforated non-woven fabric or a porous plastic sheet is preferably used. As the material fibers constituting the non-woven fabric, for example, synthetic fibers such as olefins such as polyethylene and polypropylene, polyesters, polyamides, etc., regenerated fibers such as rayon and cupra, and natural fibers such as cotton can be used. In addition, core-sheath type fibers and side-side fibers having a high melting point fiber as a core and a low melting point fiber as a sheath are used.
Composite fibers such as buy-side type fibers and split type fibers can also be preferably used.
【００１９】加工法については、スパンレース法、スパ
ンボンド法、サーマルボンド法、メルトブローン法、ニ
ードルパンチ法、エアレイド法等の適宜の加工法によっ
て得られた不織布を用いることができる。これらの加工
法の内、スパンレース法は柔軟性、ドレープ性に富む点
で優れ、サーマルボンド法は嵩高でソフトである点で優
れている。As a processing method, a nonwoven fabric obtained by an appropriate processing method such as a spun lace method, a spun bond method, a thermal bond method, a melt blown method, a needle punch method, an air laid method can be used. Among these processing methods, the spunlace method is excellent in flexibility and drapability, and the thermal bond method is excellent in bulkiness and softness.
【００２０】これら不透液性裏面シート２と透液性表面
シート３との間に介在される吸収体４は、たとえばパル
プ中に高吸水性樹脂を混入したもの、或いはパルプ中に
化学繊維を混入させるとともに、高吸水性樹脂を混入し
たものが使用される。前記吸収体４は、図示のように、
形状保持、および経血等を速やかに拡散させるととも
に、一旦吸収した経血等の逆戻りを防止するためにクレ
ープ紙４Ｂによって囲繞するのが望ましい。The absorber 4 interposed between the liquid-impermeable backsheet 2 and the liquid-permeable topsheet 3 is, for example, a mixture of pulp with a super absorbent resin, or pulp with chemical fibers. What is mixed with a super absorbent resin is used. The absorber 4 is, as shown,
It is desirable to surround the shape with crepe paper 4B in order to maintain the shape and quickly diffuse menstrual blood and the like, and prevent the menstrual blood and the like once absorbed from returning.
【００２１】特に、本発明のように薄型生理用ナプキン
１とする場合には、プレス加工によって前記吸収体４を
薄型化する。吸収体４の厚みは概ね３mm以下、好ましく
は２．５mm以下とされる。また、プレス加工後の物性値
は、密度が０．１g/cm3以上であり、かつＫＥＳ圧縮試
験機によるＷＣ値（圧縮エネルギー）が０．８gf・cm/cm
2未満となるように加工するのが望ましい。In particular, when the thin sanitary napkin 1 is used as in the present invention, the absorber 4 is thinned by pressing. The thickness of the absorber 4 is about 3 mm or less, preferably 2.5 mm or less. In addition, the physical properties after pressing are such that the density is 0.1 g / cm 3 or more, and the WC value (compression energy) by the KES compression tester is 0.8 gf · cm / cm.
It is desirable to process it so that it is less than 2 .
【００２２】前記ＫＥＳ圧縮試験機〔カトーテック株式
会社製〕は、人間の指先で物体に触れた時に感じる感覚
をシミュレートするための試験機で、圧縮エネルギー、
圧縮硬さ、圧縮回復性などを測定することが可能となっ
ている。測定はサンプルをスピード：０．０１cm/sec、
圧縮面積：２cm2、感度：２（力計２００g/１０v）、圧
縮荷重：５０gf/cm2の条件で圧縮し、圧力と変形量との
相関図からＬＣ（圧縮硬さ）、ＷＣ（圧縮エネルギー）
およびＲＣ（圧縮回復性）を算出する。The KES compression tester (manufactured by Kato Tech Co., Ltd.) is a tester for simulating a feeling that a human finger feels when touching an object.
It is possible to measure compression hardness, compression recovery, etc. For measurement, sample speed: 0.01 cm / sec,
Compressed area: 2 cm 2 , sensitivity: 2 (force meter 200 g / 10 v), compressive load: 50 gf / cm 2 Compressed under the conditions of pressure and deformation amount, LC (compression hardness), WC (compression energy) )
And RC (compression recovery) are calculated.
【００２３】前記ＬＣ（圧縮硬さ）は、図７に示される
圧力と変形量との相関図において、〔ａ＋ｂの面積〕／
〔ΔＡＢＣの面積〕で示され、値が１に近づくほど圧縮
硬さが硬いという評価になる。前記ＷＣ（圧縮エネルギ
ー）は〔ａ＋ｂの面積〕で示され、値が大きいほど圧縮
され易いとの評価になる。最後のＲＣ（圧縮回復性）は
〔ｂの面積〕／〔ａ＋ｂの面積〕で示され、値が１００
％に近付くほど回復性があるとの評価になる。これらの
試験項目の内、官能評価で判る柔らかさについては、Ｗ
Ｃ（圧縮エネルギー）を指標とするのが好適とされる。The above LC (compression hardness) is [area of a + b] / in the correlation diagram between pressure and deformation amount shown in FIG.
The area is expressed by [ABC area], and the closer the value is to 1, the higher the compression hardness. The WC (compression energy) is represented by [area of a + b], and the larger the value, the easier the compression is evaluated. The final RC (compression recovery) is represented by [area of b] / [area of a + b], and the value is 100.
The closer it is to%, the more the recovery is evaluated. Of these test items, the softness that can be seen by sensory evaluation is W
It is preferable to use C (compression energy) as an index.
【００２４】前記吸収体４の平面形状は、図示されるよ
うに、小判状としてもよいし、或いは股間部への当たり
を和らげるためにフィットカット形状（ひょうたん形
状）としてもよい。The planar shape of the absorbent body 4 may be an oval shape as shown in the figure, or may be a fit cut shape (gourd shape) to soften the contact with the crotch portion.
【００２５】前記パルプとしては、木材から得られる化
学パルプ、溶融パルプ等のセルロース繊維や、レーヨ
ン、アセテート等の人工セルロース繊維からなるものが
挙げられ、広葉樹パルプよりは繊維長の長い針葉樹パル
プの方が機能および価格の面で好適に使用される。ま
た、本発明が対象とする薄型生理用ナプキンの場合は、
エアレイド法により作製されたものが好適とされる。Examples of the pulp include cellulose fibers such as chemical pulp and molten pulp obtained from wood, and artificial cellulose fibers such as rayon and acetate, and softwood pulp having a longer fiber length than hardwood pulp. Is preferably used in terms of function and price. In the case of the thin sanitary napkin targeted by the present invention,
Those produced by the airlaid method are preferable.
【００２６】前記高吸水性樹脂としては、たとえばポリ
アクリル酸塩架橋物、自己架橋したポリアクリル酸塩、
アクリル酸エステル−酢酸ビニル共重合体架橋物のケン
化物、イソブチレン・無水マレイン酸共重合体架橋物、
ポリスルホン酸塩架橋物や、ポリエチレンオキシド、ポ
リアクリルアミドなどの水膨潤性ポリマーを部分架橋し
たもの等が挙げられる。これらの内、吸水量、吸水速度
に優れるアクリル酸またはアクリル酸塩系のものが好適
である。前記吸水性能を有する高吸水性樹脂は製造プロ
セスにおいて、架橋密度および架橋密度勾配を調整する
ことにより吸水力と吸水速度の調整が可能である。前記
高吸水性樹脂の含有率は１０〜６０％とするのが望まし
い。高吸水性樹脂含有率が１０％未満の場合には、十分
な吸収能を与えることができず、６０％を超える場合に
はパルプ繊維間の絡み合いが無くなり、シート強度が低
下し破れや割れ等が発生し易くなる。Examples of the highly water-absorbent resin include polyacrylate crosslinked products, self-crosslinked polyacrylic acid salts,
Acrylic ester-saponified product of vinyl acetate copolymer crosslinked product, isobutylene / maleic anhydride copolymer crosslinked product,
Examples thereof include crosslinked polysulfonates and partially crosslinked water-swellable polymers such as polyethylene oxide and polyacrylamide. Among these, acrylic acid or acrylate based ones, which are excellent in water absorption amount and water absorption speed, are preferable. In the manufacturing process, the superabsorbent resin having the above water-absorbing performance can be adjusted in water absorbing power and water absorbing speed by adjusting the crosslinking density and the crosslinking density gradient. The content ratio of the super absorbent polymer is preferably 10 to 60%. When the content of the super absorbent polymer is less than 10%, it is not possible to provide sufficient absorption capacity, and when it exceeds 60%, the entanglement between pulp fibers is lost, and the sheet strength is lowered to cause breakage or cracking. Is likely to occur.
【００２７】前記透液性表面シート３と吸収体４との
間、および前記不透液性裏面シート２と吸収体４との間
にそれぞれ配置される不織布６は、装着時に肌当接面及
び／又は側面部分に、肌に対する柔らかさ（ソフト感）
を与え、装着感を良好にするとともに、非肌面側におけ
る隠蔽性を高める得る不織布を使用するのが望ましい。
このような条件を満足する不織布としては、エアースル
ー不織布を用いるのが良い。エアースルー不織布は、そ
の嵩高性によりクッション性を向上させることができる
とともに、外面側からの距離を確保できるため隠蔽性も
向上するようになる。具体的に前記不織布６としては、
図６に示されるように、吸収体４の肌面側に不織布６を
配置した状態における肌面側からのＫＥＳ圧縮試験機に
よるＷＣ値（圧縮エネルギー）が０．８gf・cm/cm2以
上、好ましくは１．０gf・cm/cm2以上、より好ましくは
１．２gf・cm/cm2以上にし得る物性値のものを使用する
のが望ましい。従って、前記吸収体４と不織布６との組
み合わせ状態で上記ＷＣ値（圧縮エネルギー）を満足す
るように、吸収体４が固ければ固いほど、柔軟性の高い
ものを使用するようにする。The non-woven fabric 6 arranged between the liquid-permeable topsheet 3 and the absorbent body 4 and between the liquid-impermeable backsheet 2 and the absorbent body 4 is a skin contact surface and a / Or softness to the skin on the side (soft feeling)
It is desirable to use a non-woven fabric that gives a good wearing feeling and enhances the concealing property on the non-skin surface side.
An air-through nonwoven fabric is preferably used as the nonwoven fabric satisfying such conditions. The air-through nonwoven fabric can improve the cushioning property due to its bulkiness, and can also improve the hiding property because the distance from the outer surface side can be secured. Specifically, as the non-woven fabric 6,
As shown in FIG. 6, the WC value (compression energy) by the KES compression tester from the skin surface side in the state where the nonwoven fabric 6 is arranged on the skin surface side of the absorber 4 is 0.8 gf · cm / cm 2 or more, It is desirable to use a material having a physical property value that is preferably 1.0 gf · cm / cm 2 or more, more preferably 1.2 gf · cm / cm 2 or more. Therefore, in order to satisfy the above WC value (compression energy) in the combined state of the absorber 4 and the non-woven fabric 6, the stiffer the absorber 4 is, the more flexible the one is used.
【００２８】更に、前記不織布６としては、表面加工を
行わない不織布を使用することもできるが、波状加工、
エンボス加工等を施し、より柔軟性を高めたり、クッシ
ョン性を高めたりしたものを使用することもできる。As the non-woven fabric 6, a non-surface-treated non-woven fabric may be used.
It is also possible to use those that have been subjected to embossing or the like to have more flexibility or cushioning properties.
【００２９】前記不織布６，６の配置態様としては、別
体の２枚の不織布６，６をそれぞれ透液性表面シート３
と吸収体４との間、および前記不透液性裏面シート２と
吸収体４との間に配置することもできるが、好ましくは
図３に示されるように、吸収体４の周囲を包み込むよう
に配置するのが望ましい。同図(A)は吸収体４の上面側
において端部同士を重ね合わすように上巻きした場合の
横断面図であり、同図(B)は吸収体４の下面側において
端部同士を重ね合わすように下巻きした場合の横断面図
である。前記上巻きの場合は、肌面側において２枚の不
織布が重なり合うことによってより高い柔軟性を与える
ことが出来るようになる。また、下巻きした場合は、非
肌面側における隠蔽性をより向上できるようになる。As the arrangement mode of the non-woven fabrics 6 and 6, two separate non-woven fabrics 6 and 6 are respectively used as the liquid-permeable surface sheet 3.
It is possible to dispose between the absorbent body 4 and the absorbent body 4, and between the liquid-impervious backsheet 2 and the absorbent body 4, but it is preferable to wrap the periphery of the absorbent body 4 as shown in FIG. It is desirable to place it in. The figure (A) is a cross-sectional view of the upper surface of the absorbent body 4 when it is wound up so that the end portions are superposed on each other, and the figure (B) is the end surface portions of the absorbent body 4 which are superposed on each other. It is a cross-sectional view when it is wound so that it is wound downward. In the case of the above-mentioned winding, higher flexibility can be given by overlapping two non-woven fabrics on the skin surface side. Further, in the case of being wound under, the concealing property on the non-skin surface side can be further improved.
【００３０】この場合、少なくとも前記透液性表面シー
ト３と吸収体４との間に配置される不織布６としては、
レーヨンやキュプラ等の再生繊維、綿等の天然繊維を用
いることにより素材自体に親水性を有するものを用いる
か、ポリエチレンまたはポリプロピレン等のオレフィン
系、ポリエステル系、ポリアミド系等の合成繊維を親水
化剤によって表面処理し親水性を付与した繊維を用いる
ことにより親水性を有するようにする。また、前記不透
液性裏面シート２と吸収体４との間に配置される不織布
６としては、親水性または撥水性のいずれであっても良
いが、好ましくは撥水性を有することが好ましい。前述
のように、１枚の単一シートによって吸収体４を包み込
む場合は、図４に示されるように、シートの肌面側部分
については親水性を有し、非肌面側部分については撥水
性を有するように加工処理を施すのが望ましい。即ち、
素材自体が親水性を有する場合には、非肌面側領域を撥
水化処理し、素材自体が撥水性を有する場合には、肌面
側領域を親水化処理するようにし、肌面と非肌面とに異
なる性質を与えるようにする。In this case, as the non-woven fabric 6 arranged at least between the liquid-permeable surface sheet 3 and the absorbent body 4,
Regenerated fibers such as rayon and cupra, and natural fibers such as cotton are used to make the material itself hydrophilic, or synthetic fibers such as olefins such as polyethylene or polypropylene, polyesters, polyamides, etc. are made hydrophilic. It is made hydrophilic by using a fiber surface-treated with hydrophilicity. The nonwoven fabric 6 arranged between the liquid-impervious backsheet 2 and the absorbent body 4 may be hydrophilic or water-repellent, but is preferably water-repellent. As described above, when the absorbent body 4 is wrapped by one single sheet, as shown in FIG. 4, the skin surface side portion of the sheet has hydrophilicity and the non-skin surface side portion has hydrophobicity. It is desirable to process it so that it is water-based. That is,
When the material itself is hydrophilic, the non-skin surface side area is treated to be water repellent, and when the material itself is water repellent, the skin surface side area is treated to be hydrophilic so that it does not contact the skin surface. Try to give different properties to the skin.
【００３１】更に、前記不織布６は、図５に示されるよ
うに、吸収体４の非肌面側に配置された不織布がフィル
ム７を貼り合わせたラミネート不織布とし、吸収体４の
肌面側に配置された不織布が不織布単体であるように加
工した不織布を用いるようにしてもよい。この場合は、
非肌面側における隠蔽性が格段に向上するようになる。Further, as shown in FIG. 5, the non-woven fabric 6 is a laminated non-woven fabric in which the non-skin face arranged on the non-skin surface side of the absorbent body 4 is laminated with the film 7, and the non-woven fabric side is arranged on the skin surface side of the absorbent body 4. You may make it use the nonwoven fabric processed so that the arranged nonwoven fabric may be a single nonwoven fabric. in this case,
The concealing property on the non-skin surface side is remarkably improved.
【００３２】前記不織布６は、隠蔽性を高めるために、
清潔感を損なわない程度であれば、青色、黄色、桃色等
の着色を施してもよい。また、隠蔽性の目安としては、
JISA K 7361-1による光透過率が７０％以下、好ましく
は５０％以下、より好ましくは３０％以下であるものが
好適に用いられる。The non-woven fabric 6 has a
Coloring such as blue, yellow, and pink may be applied as long as the cleanliness is not impaired. Also, as a measure of concealment,
Those having a light transmittance according to JISA K 7361-1 of 70% or less, preferably 50% or less, more preferably 30% or less are preferably used.
【００３３】[0033]
【発明の効果】以上詳説のとおり本発明によれば、吸収
体が比較的薄くて固い薄型吸収性物品の場合であって
も、装着時に肌当接面及び側面部分に柔らかさを与え、
装着感を良好にするとともに、非肌面側における隠蔽性
を高めることができるようになる。As described above in detail, according to the present invention, even in the case of a thin absorbent article in which the absorber is relatively thin and hard, the skin contacting surface and the side surface portion are softened at the time of wearing,
It is possible to improve the wearing feeling and enhance the concealing property on the non-skin surface side.
【図１】本発明に係る薄型生理用ナプキン１の一部破断
斜視図である。FIG. 1 is a partially cutaway perspective view of a thin sanitary napkin 1 according to the present invention.
【図２】その要部拡大横断面図である。FIG. 2 is an enlarged transverse sectional view of the main part thereof.
【図３】(A)、(B)共に不織布６の配置態様を示す図であ
る。3 (A) and 3 (B) are views showing the arrangement of the nonwoven fabric 6. FIG.
【図４】不織布６の他の態様を示す横断面図である。FIG. 4 is a cross-sectional view showing another aspect of the nonwoven fabric 6.
【図５】不織布６の他の態様を示す横断面図である。FIG. 5 is a cross-sectional view showing another embodiment of the nonwoven fabric 6.
【図６】ＫＥＳ圧縮試験機による試験要領図である。FIG. 6 is a test procedure diagram by a KES compression tester.
【図７】ＫＥＳ圧縮試験結果を示す、圧力と変形量との
相関図である。FIG. 7 is a correlation diagram between pressure and deformation amount, showing KES compression test results.
１…薄型生理用ナプキン、２…不透液性裏面シート、３
…透液性表面シート、４…吸収体、４Ｂ…クレープ紙、
６…不織布1 ... Thin sanitary napkin, 2 ... Liquid-impermeable back sheet, 3
... Liquid-permeable surface sheet, 4 ... Absorber, 4B ... Crepe paper,
6 ... Nonwoven fabric
フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ａ６１Ｆ 13/539 Ａ６１Ｆ 13/18 ３３３ Ｂ３２Ｂ 27/00 Ａ４１Ｂ 13/02 Ｂ 27/12 Ｇ Ｆターム(参考） 3B029 BA11 BD15 BD16 4C003 AA19 CA10 4C098 AA09 CC02 DD04 DD10 DD25 DD27 4F100 AK01E AT00E BA05 BA07 BA10B DG15D DG15E JD05A JD05B JD14C JL05 Front page continuation (51) Int.Cl. 7 Identification code FI theme code (reference) A61F 13/539 A61F 13/18 333 B32B 27/00 A41B 13/02 B 27/12 G F term (reference) 3B029 BA11 BD15 BD16 4C003 AA19 CA10 4C098 AA09 CC02 DD04 DD10 DD25 DD27 4F100 AK01E AT00E BA05 BA07 BA10B DG15D DG15E JD05A JD05B JD14C JL05
Claims (8)
の間に吸収体が介在された吸収性物品において、 前記透液性表面シートと吸収体との間、および前記不透
液性裏面シートと吸収体との間にそれぞれ不織布を配置
したことを特徴とする吸収性物品。1. An absorbent article having an absorbent body interposed between a liquid-permeable top sheet and a liquid-impermeable back sheet, comprising: a space between the liquid-permeable top sheet and the absorbent body; An absorbent article in which a nonwoven fabric is placed between the absorbent back sheet and the absorbent body.
あり、かつＫＥＳ圧縮試験機によるＷＣ値（圧縮エネル
ギー）が０．８gf・cm/cm2未満である請求項１記載の吸
収性物品。2. The absorber has a density of 0.1 g / cm 3 or more and a WC value (compression energy) measured by a KES compression tester of less than 0.8 gf · cm / cm 2. Absorbent article.
体の上面側又は下面側において端部同士を重ね合わせた
状態で吸収体を包み込んである請求項１、２いずれかに
記載の吸収性物品。3. The absorbent according to claim 1, wherein the non-woven fabric encloses the absorbent body in a state where the end portions of the nonwoven fabric are superposed on the upper surface side or the lower surface side of the absorbent body by a single sheet. Goods.
た不織布が親水性を有し、吸収体の非肌面側に配置され
た不織布が撥水性を有する請求項１〜３いずれかに記載
の吸収性物品。4. The non-woven fabric arranged on the skin side of the absorbent body is hydrophilic, and the non-woven fabric arranged on the non-skin side of the absorbent body is water repellent. An absorbent article according to claim 1.
布を配置した状態における肌面側からのＫＥＳ圧縮試験
機によるＷＣ値（圧縮エネルギー）が０．８gf・cm/cm2
以上にし得る物性値のものを使用している請求項１〜４
いずれかに記載の吸収性物品。5. A WC value (compression energy) measured by a KES compression tester from the skin surface side in a state where the non-woven fabric is disposed on the skin surface side of the absorbent body is 0.8 gf · cm / cm 2
5. A material having a physical property value as described above is used.
The absorbent article according to any one of claims.
いる請求項１〜５いずれかに記載の吸収性物品。6. The absorbent article according to claim 1, wherein the nonwoven fabric is an air-through nonwoven fabric.
れた不織布がフィルムを貼り合わせたラミネート不織布
であり、吸収体の肌面側に配置された不織布が不織布単
体である請求項１〜６いずれかに記載の吸収性物品。7. The non-woven fabric is a laminated non-woven fabric in which a non-skin face of the absorber is laminated with a film, and the non-woven fabric placed on the skin face of the absorber is a single non-woven fabric. The absorbent article according to any one of 1 to 6.
請求項１〜７いずれかに記載の吸収性物品。8. The absorbent article according to claim 1, wherein the nonwoven fabric has a light transmittance of 70% or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002083187A JP4050536B2 (en) | 2002-03-25 | 2002-03-25 | Absorbent articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002083187A JP4050536B2 (en) | 2002-03-25 | 2002-03-25 | Absorbent articles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003275240A true JP2003275240A (en) | 2003-09-30 |
| JP4050536B2 JP4050536B2 (en) | 2008-02-20 |
Family
ID=29206846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002083187A Expired - Fee Related JP4050536B2 (en) | 2002-03-25 | 2002-03-25 | Absorbent articles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4050536B2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006297076A (en) * | 2005-03-24 | 2006-11-02 | Kao Corp | Absorbent article |
| JP2008501554A (en) * | 2004-06-04 | 2008-01-24 | ホリスター・インコーポレイテッド | Laminates and skin contact products formed from them |
| JP2008503322A (en) * | 2004-06-21 | 2008-02-07 | ザ プロクター アンド ギャンブル カンパニー | Compression resistance nonwoven fabric |
| WO2009069635A1 (en) | 2007-11-30 | 2009-06-04 | Daio Paper Corporation | Absorbent article |
| JP2010150686A (en) * | 2008-12-25 | 2010-07-08 | Kao Corp | Nonwoven fabric |
| CN107734987A (en) * | 2015-06-10 | 2018-02-23 | 兴和株式会社 | Mouth mask |
| WO2018116849A1 (en) * | 2016-12-22 | 2018-06-28 | 花王株式会社 | Absorbent sheet and absorbent article |
| JP2019162399A (en) * | 2018-05-23 | 2019-09-26 | ユニ・チャーム株式会社 | Absorbent article |
| CN112334112A (en) * | 2018-06-29 | 2021-02-05 | 尤妮佳股份有限公司 | Absorbent article |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5709398B2 (en) * | 2010-03-31 | 2015-04-30 | ユニ・チャーム株式会社 | Absorbent articles |
-
2002
- 2002-03-25 JP JP2002083187A patent/JP4050536B2/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7815617B2 (en) | 2004-06-04 | 2010-10-19 | Hollister Incorporated | Laminated material and skin contacting products formed therefrom |
| JP2008501554A (en) * | 2004-06-04 | 2008-01-24 | ホリスター・インコーポレイテッド | Laminates and skin contact products formed from them |
| US7819849B2 (en) | 2004-06-04 | 2010-10-26 | Hollister Incorporated | Laminated material and body wearable pouch formed therefrom |
| JP2008503322A (en) * | 2004-06-21 | 2008-02-07 | ザ プロクター アンド ギャンブル カンパニー | Compression resistance nonwoven fabric |
| JP2006297076A (en) * | 2005-03-24 | 2006-11-02 | Kao Corp | Absorbent article |
| JP4540629B2 (en) * | 2005-03-24 | 2010-09-08 | 花王株式会社 | Absorbent articles |
| WO2009069635A1 (en) | 2007-11-30 | 2009-06-04 | Daio Paper Corporation | Absorbent article |
| US8377021B2 (en) | 2007-11-30 | 2013-02-19 | Daio Paper Corporation | Absorbent article |
| JP2010150686A (en) * | 2008-12-25 | 2010-07-08 | Kao Corp | Nonwoven fabric |
| CN107734987A (en) * | 2015-06-10 | 2018-02-23 | 兴和株式会社 | Mouth mask |
| WO2018116849A1 (en) * | 2016-12-22 | 2018-06-28 | 花王株式会社 | Absorbent sheet and absorbent article |
| JP2019162399A (en) * | 2018-05-23 | 2019-09-26 | ユニ・チャーム株式会社 | Absorbent article |
| JP7079658B2 (en) | 2018-05-23 | 2022-06-02 | ユニ・チャーム株式会社 | Absorbent article |
| CN112334112A (en) * | 2018-06-29 | 2021-02-05 | 尤妮佳股份有限公司 | Absorbent article |
| CN112334112B (en) * | 2018-06-29 | 2022-04-29 | 尤妮佳股份有限公司 | Absorbent article |
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|---|---|
| JP4050536B2 (en) | 2008-02-20 |
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