JPH0435662A - Surface sheet of absorbent substance - Google Patents
Surface sheet of absorbent substanceInfo
- Publication number
- JPH0435662A JPH0435662A JP2142544A JP14254490A JPH0435662A JP H0435662 A JPH0435662 A JP H0435662A JP 2142544 A JP2142544 A JP 2142544A JP 14254490 A JP14254490 A JP 14254490A JP H0435662 A JPH0435662 A JP H0435662A
- Authority
- JP
- Japan
- Prior art keywords
- nonwoven fabric
- liquid
- contact area
- skin contact
- top sheet
- 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
- 230000002745 absorbent Effects 0.000 title claims description 10
- 239000002250 absorbent Substances 0.000 title claims description 10
- 239000000126 substance Substances 0.000 title 1
- 239000007788 liquid Substances 0.000 claims abstract description 65
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 32
- 239000000835 fiber Substances 0.000 claims abstract description 16
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 7
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 7
- 239000004744 fabric Substances 0.000 claims abstract description 6
- 230000035699 permeability Effects 0.000 claims description 26
- 230000002093 peripheral effect Effects 0.000 claims description 17
- 239000004750 melt-blown nonwoven Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 6
- 208000003251 Pruritus Diseases 0.000 abstract description 3
- 230000008961 swelling Effects 0.000 abstract description 3
- 210000001124 body fluid Anatomy 0.000 description 17
- 239000010839 body fluid Substances 0.000 description 17
- 238000009423 ventilation Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 230000007803 itching Effects 0.000 description 2
- 208000017520 skin disease Diseases 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920001410 Microfiber Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 206010040880 Skin irritation Diseases 0.000 description 1
- 206010053262 Skin swelling Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000036556 skin irritation Effects 0.000 description 1
- 231100000475 skin irritation Toxicity 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、吸収性物品の表面シートに関し、更に詳し
くは、吸収性コアを被覆して生理用ナプキン、生理用タ
ンポン、使い捨てオムツなどの体液吸収性物品を構成す
るための表面シートに関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a surface sheet for absorbent articles, and more particularly, the present invention relates to a surface sheet for absorbent articles, and more specifically, it is used to coat an absorbent core and absorb body fluids such as sanitary napkins, sanitary tampons, and disposable diapers. The present invention relates to a topsheet for forming an absorbent article.
（従来の技術、発明が解決しようとする課題）従来、こ
の種の表面シートとして、着用者の肌に対する体液湿潤
感を少なくし、体液の透過性も比較的高めるようにする
ことなどのため、疎水性不織布に所与パターンの開孔を
配列形成したものが知られている。しかし、この表面シ
ートの開孔は、平面的構造てあって、開孔の各々の間に
延びる肌接触域の下面が吸収性コアの上面に直接に接触
する。そのため、体液を吸収したコアに体圧が加わった
ときや１体液を吸収してコアが膨張することでこれが表
面シートに圧接したときなどにおいて、体液がコアから
開孔を経て表面シートの上面に滲出し、所期の目的を十
分に達成することができない。(Prior Art, Problems to be Solved by the Invention) Conventionally, this type of topsheet has been designed to reduce the feeling of body fluid wetness on the wearer's skin and to relatively increase the permeability of body fluids. A hydrophobic nonwoven fabric in which a given pattern of openings is arranged and formed is known. However, the apertures in this topsheet have a planar structure, and the lower surface of the skin contact area extending between each of the apertures directly contacts the upper surface of the absorbent core. Therefore, when body pressure is applied to the core that has absorbed body fluids, or when the core expands after absorbing body fluids and comes into pressure contact with the top sheet, body fluids flow from the core through the holes and onto the top surface of the top sheet. oozes out, making it impossible to fully achieve the intended purpose.
一方、前記表面シートの欠点を除去することなどを目的
とする表面シートとして、プラスチックフィルムに所与
パターンの開口を配列形成するとともに、これらの開口
の周縁からそれぞれ下方向に延出させた導液管を有する
ものが知られている。この表面シートは１着用者の肌へ
の接触面積及び肌に対する体液湿潤感を少なくし、体液
の透過性も比較的高めるようにするという目的を一応達
成することができる。しかし、体液を吸収したコアに体
圧が加わったときや、体液を吸収してコアか膨張するこ
とでこれが表面シートに圧接し、これによって導液管か
変形して閉塞したとき１表面シートが導液管による通気
性を失う。その結果、表面シートと着用者の肌とに蒸れ
が生じて肌に皮膚病の原因となるかぶれ、ふやけや、か
ゆみなどを与える。もとより、このように導液管が閉塞
すると、その導液管がその機能を失い、その閉塞後に表
面シートの上面に排泄された体液を内部へ導入すること
ができない、また、この表面シートは、依然としてフィ
ルム自体の性質を完全に維持しているから、布に比較し
て肌ざわりが良好とはいえない。On the other hand, as a top sheet for the purpose of removing the defects of the top sheet, a given pattern of openings is arranged in a plastic film, and a liquid guide is formed that extends downward from the periphery of each of these openings. Those having a tube are known. This top sheet can achieve the purpose of reducing the contact area with the wearer's skin and the feeling of body fluid wetness on the skin, and relatively increasing the permeability of body fluids. However, when body pressure is applied to the core that has absorbed body fluids, or when the core expands after absorbing body fluids, it comes into pressure contact with the top sheet, which deforms the fluid conduit and causes a blockage. The ventilation provided by the liquid conduit is lost. As a result, stuffiness occurs between the top sheet and the wearer's skin, causing skin irritation, swelling, and itching that can cause skin diseases. Naturally, when the liquid conduction tube is blocked in this way, the liquid conduction tube loses its function, and the body fluid excreted on the top surface of the top sheet after the blockage cannot be introduced into the inside. Since the properties of the film itself are still completely maintained, it cannot be said that it feels as good to the touch as compared to cloth.
この発明は、熱可塑性繊維を融着させた不織布を基材と
し、その一部から導液管を形成することにより、従来の
技術が有する前記欠点を除去することができる表面シー
トを提供することを目的とする。The present invention provides a surface sheet that uses a nonwoven fabric with thermoplastic fibers fused together as a base material and forms a liquid conduit from a portion of the nonwoven fabric, thereby eliminating the above-mentioned drawbacks of the conventional technology. With the goal.
（課題を解決するための手段）
前記目的を達成するための、この発明は、肌接触域間の
周縁で上面開口を画成し下方向へ延出する導液管を形成
した吸収性物品の表面シートを前提とする。(Means for Solving the Problems) In order to achieve the above object, the present invention provides an absorbent article in which an upper surface opening is defined at the periphery between the skin contact areas and a liquid guide tube extending downward is formed. Assumes a top sheet.
この発明は、前記前提において、熱可塑性ＩａＪｌを融
着させた不織布から前記表面シートを構成し、前記不織
布の一部から前記導液管を形成するとともに少なくとも
この導液管に通気性を付与する。Based on the above-mentioned premise, the present invention comprises forming the top sheet from a nonwoven fabric to which thermoplastic IaJl is fused, forming the liquid guide pipe from a part of the nonwoven fabric, and imparting air permeability to at least the liquid guide pipe. .
好ましい実施例においては、さらに次のようにする。In a preferred embodiment, the following further steps are performed.
前記肌接触域に通気性を付与する（第１の態様）か、不
通気性を付与する（第２の態様）かのいずれかにするこ
とがてきる。The skin contact area can be made either breathable (first aspect) or impermeable (second aspect).
前記第１及び第２の態様のいずれの場合でも、導液管の
周壁に透液性をも付与する。In either of the first and second embodiments, liquid permeability is also imparted to the peripheral wall of the liquid guide pipe.
前記第１の態様の場合、前記肌接触域及び前記導液管の
周壁における通気度をｌ Ｏｃｃ／ｃｍＩＩ／ｓｅｃ以
上になす。In the case of the first aspect, the air permeability in the skin contact area and the peripheral wall of the liquid guide tube is set to be 1 Occ/cmII/sec or more.
前記第１及び第２の態様のいずれの場合でも、前記上面
開口の直径を０．３〜２■になし、前記上面開口の各々
の合計面積比率を２０〜７０％になす。In either of the first and second embodiments, the diameter of the upper opening is set to 0.3 to 2 cm, and the total area ratio of each of the upper openings is set to 20 to 70%.
前記第１及び１Ｎ２の態様のいずれの場合でも、前記不
織布としてメルトブロー不織布製造手段て製造したもの
を使用する。In either of the first and 1N2 embodiments, the nonwoven fabric manufactured by a melt-blown nonwoven fabric manufacturing means is used.
（作用）
前記構成を有するこの発明に係る表面シートは、内部に
吸液性コアを有する物品の表面を形成するために使用す
るものである。この使用状態においては、体液が各導液
管を通って物品の内部に吸収される０表面シートの上面
は、着用者の肌にぴったり付着することなく接触し左様
感触を与えるとともに、肌との間に通気し、皮膚呼吸を
妨げることがほとんどない。(Function) The top sheet according to the present invention having the above configuration is used to form the surface of an article having a liquid-absorbing core therein. In this state of use, the upper surface of the surface sheet, through which body fluids are absorbed into the interior of the article through each liquid conduit, contacts the wearer's skin without sticking tightly, giving it a similar feel and creating a comfortable contact with the skin. Ventilation is allowed between the layers, and there is almost no obstruction to the skin's ability to breathe.
導液管の周壁に通気性を付与してあることで、その周壁
を通して物品の内部との通気がはかられる。この通気は
、たとえ体圧で導液管が変形したり閉塞したりしたとき
でも、妨げられることがない
肌接触域にも通気性を付与してある場合には、物品の内
部との通気が一層良好になる。一方、肌接触域に不通気
性を付与してある場合には、肌接ｔ １
触城での通ｉ中もいが、いかなる圧力下でも肌接触域の
下面から上面へ体液が滲出しない。By providing air permeability to the peripheral wall of the liquid conduit, ventilation with the interior of the article can be achieved through the peripheral wall. This ventilation can be achieved even if the fluid conduit is deformed or blocked by body pressure, if the skin contact area is also provided with ventilation, which will not be obstructed, the ventilation with the inside of the article will be maintained. It gets even better. On the other hand, if the skin contact area is made impermeable, body fluids will not seep out from the lower surface to the upper surface of the skin contact area under any pressure, even during skin contact.
導液管の周壁に透液性を付与してある場合には、前記通
気と同様に、たとえ体圧て導液管が変形したり閉塞した
りしても、導液管を通しての導液機能が妨げられること
がない。If the peripheral wall of the liquid conduit is made liquid permeable, even if the liquid conduit becomes deformed or clogged due to body pressure, the liquid conduction function through the liquid conduit is maintained, similar to the ventilation described above. is not hindered.
（実施例）
図面を参照して、この発明に係る表面シートの実施例を
説明すると、以下のとありである。(Example) An example of the top sheet according to the present invention will be described below with reference to the drawings.
第１図は、この発明に係る表面シートを使用する一例と
しての、一部を破断した生理用ナプキンの斜視図を示す
、ナプキン１は、後記導液管を形成した透液性表面シー
ト１１と、不透液性裏面シート２と、これらの間に介在
させた吸液性コア３とから構成してある。FIG. 1 shows a partially cutaway perspective view of a sanitary napkin as an example of using the top sheet according to the present invention. , a liquid-impermeable back sheet 2, and a liquid-absorbing core 3 interposed between them.
第２図はシート１１の一部の模式斜視図を示し、第３図
は導液管１３の模式断面図を示す。表面シート１１は、
通気性不織布を基材とし、肌接触域（非開口城又は連続
リブ域）１２と多数の導液管１３とから構成してある。FIG. 2 shows a schematic perspective view of a part of the sheet 11, and FIG. 3 shows a schematic cross-sectional view of the liquid guide pipe 13. The top sheet 11 is
The base material is an air-permeable nonwoven fabric, and it is composed of a skin contact area (non-opening wall or continuous rib area) 12 and a large number of liquid guide pipes 13.
導液管１３は上面開口１３ａの周縁から下方向に延出し
、開口１３ａは連続する肌接触域１２の周縁で画成した
所与パターンで配列形成してある。導液管１３はその径
を上面開口１３ａから下面開口１３ｂに次第に小さくし
たテーパーに形成してある。The liquid guide tubes 13 extend downward from the periphery of the upper opening 13a, and the openings 13a are arranged in a given pattern defined by the periphery of the continuous skin contact area 12. The liquid guiding pipe 13 is tapered so that its diameter gradually decreases from the upper opening 13a to the lower opening 13b.
表面シート１１の基材である不織布は、熱可塑性繊維を
融着させて布形態を付与したものである。この不織布に
は、通気性を付与してある場合と、不通気性を付与して
ある場合とがある。こうした不織布の最も好ましいもの
としては、従来公知のメルトブロー不織布の製造手段に
よって得たものである。この不織布の目付、密度により
、更にほこの不織布の形成後に加熱圧着処理することな
どの手段により１通気性及び不通気性のいずれかを付与
することができる。この不織布として７は、−船釣には
、繊度な０．０１〜ｌｄとしたオレフィン系、ポリエス
テル系、ナイロン系、ＥＶＡ系などの熱可塑性（疎水性
）の繊維を融着させ、坪量を１０〜５０ｇ／■２．なか
んずく２０〜３５ｇ／璽２になし、密度を０．０３〜０
．５ｇ／ｃ■３になしてあるものを使用することが、良
好な肌ざわり、所要の強度を得るうえで好ましい。The nonwoven fabric that is the base material of the topsheet 11 is made by fusing thermoplastic fibers to give it a cloth shape. This nonwoven fabric may have air permeability or impermeability. The most preferred of such nonwoven fabrics is one obtained by conventionally known means for producing melt-blown nonwoven fabrics. Depending on the basis weight and density of this nonwoven fabric, either air permeability or air impermeability can be imparted to the nonwoven fabric by means such as heat-pressing treatment after forming the nonwoven fabric. As for this non-woven fabric, 7 - For boat fishing, thermoplastic (hydrophobic) fibers such as olefin, polyester, nylon, and EVA fibers with a fineness of 0.01 to ld are fused to reduce the basis weight. 10-50g/■2. Above all, 20-35g/2 squares, density 0.03-0
．． It is preferable to use a material with a ratio of 5g/c3 to obtain a good texture and the required strength.
通気性不織布の場合、ＪＩＳ、Ｌ、１０１Ｂによる通気
度を１０〜５００ ｃｃ／ｃｉ＋２／ ｓｅｃになし、
ＪＩＳ、Ｌ、１０９２による耐水圧を１０〜２５０ｍｍ
になしてあるものが、肌接触域１２における所要の通気
性を得、肌接触域１２の内面からその上面への体液の逆
流を防止するうえて好ましい。In the case of breathable nonwoven fabric, the air permeability according to JIS, L, 101B is 10 to 500 cc/ci+2/sec,
Water pressure resistance according to JIS, L, 1092 from 10 to 250 mm
This is preferable in order to obtain the required air permeability in the skin contact area 12 and to prevent backflow of body fluids from the inner surface of the skin contact area 12 to its upper surface.
ちなみに、従来一般に、吸収性物品の表面シートとして
使用されている不織布は、通気度が５００ｃｃ／ｃｍ”
／ｓｅｃ以上で優れているが、耐水圧がほとんどない。By the way, nonwoven fabrics conventionally used as topsheets for absorbent articles have an air permeability of 500cc/cm.
/sec or more, but it has almost no water pressure resistance.
開口１３ａに関しては、直径を０．２〜２■、なかんず
く０．７〜１．３■■になし、その各々の合計開口率を
２０〜７０％になし、導液管１３の高さ（長さ）を０．
５〜５膳■になしたものが、導液管１３の上面からその
下面への高い導液効果を得る一方、その下面から上面へ
の体液の流出を最少にするうえで好ましい。Regarding the opening 13a, the diameter is set to 0.2 to 2 mm, especially 0.7 to 1.3 mm, and the total opening ratio of each is set to 20 to 70%, and the height (length) of the liquid guide pipe 13 is adjusted. 0.
It is preferable to use 5 to 5 plates in order to obtain a high liquid guiding effect from the upper surface of the liquid guiding tube 13 to its lower surface and to minimize the outflow of body fluid from the lower surface to the upper surface.
第４図ないし第６図は、導液管１３の別の形態を示し、
第３図に相当する断面図である。第４図示の導液管１３
は、その径を上面開口１３ａから下面開口１３ｂに次第
に小さくしてある点では第３図示のそれと同じであるが
、下面開口１３ｂを第３図示のそれよりもかなり小さく
形成してある。図示してないが、場合によっては、下面
開口１３ｂをほとんど閉じらせてあってもよい。第５図
示の導液管１３は、その壁面を実質的に平行に、か・つ
、上下面開口１３ａ、１３ｂの径を実質的に同じに形成
してある。第６図示の導液管１３は、その径を上面開口
１３ａから下面開口１３ｂに次第に大きくしたテーパー
に形成してある。4 to 6 show another form of the liquid conduit 13,
FIG. 4 is a sectional view corresponding to FIG. 3; Liquid guide pipe 13 shown in the fourth diagram
is the same as that shown in the third figure in that the diameter is gradually reduced from the top opening 13a to the bottom opening 13b, but the bottom opening 13b is formed much smaller than that shown in the third figure. Although not shown, in some cases, the lower opening 13b may be almost closed. The liquid guiding pipe 13 shown in FIG. 5 has its wall surfaces substantially parallel to each other, and the diameters of the upper and lower openings 13a and 13b are substantially the same. The liquid guiding pipe 13 shown in FIG. 6 is tapered so that its diameter gradually increases from the upper opening 13a to the lower opening 13b.
各図示の導液管１３の周壁の厚みは肌接触域１２のそれ
よりも薄くなし、導液管１３の周壁には実質的に導液管
１３の延出方向に複数の襞を付与してあるとともに、下
面開口１３ｂの周縁を不規則に形成してある。導液管１
３は、その周壁における繊維密度を肌接触域１２におけ
るそれよりも低くなし、これによフて導液管１３に通気
性及び透液性を付与してある。そうしてあると、導液管
１３か体圧で変形したり閉塞したりしたときても、その
上面から下面への体液導入を可能ならしめることができ
る、その通気性及び透液性を高めるには、導液管１３の
周壁における繊維間隙を大きくするとよい。The thickness of the peripheral wall of each illustrated liquid guide tube 13 is made thinner than that of the skin contact area 12, and the peripheral wall of the liquid guide tube 13 is provided with a plurality of folds substantially in the extending direction of the liquid guide tube 13. In addition, the periphery of the lower opening 13b is irregularly formed. Liquid conduit 1
3 has a fiber density lower in the peripheral wall than in the skin contact area 12, thereby imparting air permeability and liquid permeability to the liquid guide tube 13. By doing so, even if the liquid guide tube 13 is deformed or obstructed by body pressure, body fluid can be introduced from the upper surface to the lower surface, and its air permeability and liquid permeability are increased. For this purpose, it is preferable to increase the fiber gap in the peripheral wall of the liquid guide pipe 13.
表面シート１１は、例えばこうして製造することができ
る。メルトブロー装置から溶融ポリマーを吐き出し、高
速高温空気流で極細繊維化して、開口１３ａと同様な形
状、大きさ、配列を有するコンベアの上面に堆積して不
織布化する。同時に、コンベアの下面に配置したサクシ
ョンで不織布の所与域に負圧をかけ、この負圧をかけた
域におけるコンベアの開口群に位置する不織布部分を下
方向に吸引する。こうすると、不織布の当該吸引部分が
上面開口を有する管状に垂下するとともに、この管状部
分の下面が破れた状態で開口したものが得られる、すな
わち、上下面開口１３ａ。The topsheet 11 can be manufactured in this manner, for example. The molten polymer is discharged from a melt blowing device, turned into ultrafine fibers by a high-speed, high-temperature air flow, and deposited on the upper surface of a conveyor having the same shape, size, and arrangement as the openings 13a to form a nonwoven fabric. At the same time, a suction placed on the lower surface of the conveyor applies negative pressure to a given region of the nonwoven fabric, and the portion of the nonwoven fabric located in the group of openings of the conveyor in the area to which this negative pressure is applied is sucked downward. In this way, the suction portion of the nonwoven fabric hangs down in a tubular shape having an opening on the upper surface, and the lower surface of this tubular portion is torn and opened, that is, the upper and lower openings 13a are obtained.
１３ｂを有する導液管１３が形成される。導液管１３を
形成するための前記処理は、必要に応じて、不織布を形
成し、さらにこれを加熱ロールて処理することで、その
表面を一層平滑になし、かつ、融着割合及び強度を高め
た後になすこともできる。A liquid guide pipe 13 having 13b is formed. The above-mentioned treatment for forming the liquid guide pipe 13 is performed by forming a non-woven fabric and further treating it with a heated roll to make the surface smoother and to improve the fusion rate and strength. You can also do it after raising it.
前述のように、不織布の当該部分を下方向に吸引するこ
とで、こうして形成した導液管１３の周壁の繊維密度を
肌接触域１２のそれよりも低くなすことができる。繊維
密度を低くなした導液管１３の周壁は、通気性に優れ、
透液性をも有する。前記吸引力や、不織布の坪量、密度
↓よび繊度によっては、導液管１３の周壁に８ける繊維
間隙を大きくなすことができる０以上のような状態を導
液管１３に形成することは、不織布が一体的繊維堆積形
態を維持しいわばフィルム状化して通気性を有していな
い場合に、導液管１３の周壁な介して表面シート１１に
通気性を付与するうえて有効である。また、不織布の繊
維がランダムに配向して融着していても、前記吸引力に
より、導液管１３の周壁における繊維の一部がその吸引
方向へ配向し、その結果、その周壁におけるその方向へ
の毛細管作用がそれだけ強くなる。これは、導液管１３
の上面から下面への体液導入を促進させるうえで有効で
ある。As described above, by sucking the portion of the nonwoven fabric downward, the fiber density of the peripheral wall of the liquid conduit 13 thus formed can be made lower than that of the skin contact area 12. The peripheral wall of the liquid guiding pipe 13 with a low fiber density has excellent air permeability,
It also has liquid permeability. Depending on the suction force, the basis weight, density↓, and fineness of the nonwoven fabric, it is possible to form a state in the liquid guide pipe 13 in which the fiber gap of 8 on the peripheral wall of the liquid guide pipe 13 can be increased to 0 or more. This is effective in imparting air permeability to the top sheet 11 through the peripheral wall of the liquid conduit 13 when the nonwoven fabric maintains an integral fiber accumulation form, ie, becomes a film and does not have air permeability. Further, even if the fibers of the nonwoven fabric are oriented and fused at random, the suction force causes some of the fibers on the peripheral wall of the liquid guide tube 13 to be oriented in the suction direction, and as a result, in that direction on the peripheral wall. The capillary action becomes stronger. This is the liquid guide pipe 13
It is effective in promoting the introduction of body fluid from the upper surface to the lower surface of the body.
第７図に例示するように、表面シート１１は、導液管１
３の下面開口１３ｂをコア３に対向させてこれを被覆す
るのに使用する。導液管１３はコア３に適宜塩めるよう
にしてもよい。As illustrated in FIG. 7, the surface sheet 11
The lower opening 13b of No. 3 is used to face the core 3 and cover it. The liquid guide pipe 13 may be arranged so that the core 3 is suitably salted.
（発明の効果）
以上の構成及び作用を有するこのｊ発明に係る表面シー
トによれば、通気性又は、通気性及び透液性を物品の着
用中常に維持させることができる。したがって、表面シ
ートと着用者の肌とに蒸れが生じて肌に皮膚病の原因と
なるかぶれ、ふやけや、かゆみなどを与えることがない
。(Effects of the Invention) According to the surface sheet according to the invention J having the above-described configuration and function, air permeability or air permeability and liquid permeability can be maintained at all times while the article is being worn. Therefore, the top sheet and the wearer's skin do not get stuffy and cause irritation, swelling, itching, etc. that can cause skin diseases.
第１図は、本発明に係る表面シートを使用すべき物品の
一例を示す生理用ナプキンであり、第２図は、前記表面
シートの模式斜視図てあり、
第３図は、前記表面シートの導液管の模式縦断面図であ
り、
第４図ないし！＄６図は、他の実施例を示す、第３図に
相当する図であり、
第７図は、前記物品の模式部分拡大断面図である。
ｌｌ：表面シート １２：肌接触域１３：導液管
１３ａ：上面開口１３ｂ：下面開口
第 １
図
第 ３ 図
第４図
第 ５ 図
第 ６ 図
第２図
第 ７ 図
手続補正書
平成２年８月２４日
平成２年特許願第１４２５４４号
発明の名称
吸収性物品の表面シート
補正をする者
事件との関係 特許出願人
ユニ・チャーム株式会社FIG. 1 shows a sanitary napkin as an example of an article in which the top sheet according to the present invention should be used, FIG. 2 is a schematic perspective view of the top sheet, and FIG. 3 shows the top sheet of the top sheet. It is a schematic longitudinal cross-sectional view of the liquid conduit, and it is from Figure 4! FIG. 6 is a diagram corresponding to FIG. 3 showing another embodiment, and FIG. 7 is a schematic partially enlarged sectional view of the article. ll: Surface sheet 12: Skin contact area 13: Liquid guide pipe
13a: Upper surface opening 13b: Lower surface opening Fig. 1 Fig. 3 Fig. 4 Fig. 5 Fig. 6 Fig. 2 Fig. 7 Draft procedure amendment August 24, 1990 1990 Patent Application No. 142544 Title of the invention Relationship with the case of a person who corrects the top sheet of absorbent articles Patent applicant Unicharm Co., Ltd.
Claims (7)
する導液管を形成した吸収性物品の表面シートにおいて
、熱可塑性繊維を融着させた不織布から前記表面シート
を構成し、前記不織布の一部から前記導液管を形成する
とともに少なくともこの導液管に通気性を付与してある
ことを特徴とする前記表面シート。(1) In a top sheet of an absorbent article that defines an upper surface opening at the periphery of the skin contact area and a liquid conduit extending downward, the top sheet is made of a nonwoven fabric to which thermoplastic fibers are fused. The surface sheet is characterized in that the liquid guide tube is formed from a part of the nonwoven fabric, and at least the liquid guide tube is provided with air permeability.
載の表面シート。(2) The top sheet according to claim 1, wherein the skin contact area is provided with air permeability.
記載の表面シート。(3) Claim 1, wherein the skin contact area is made impermeable.
The top sheet listed.
２又は３記載の表面シート。(4) The surface sheet according to claim 2 or 3, wherein the peripheral wall of the liquid guide pipe is provided with liquid permeability.
度を１０ｃｃ／ｃｍ＾２／ｓｅｃ以上になしてある請求
項２又は４記載の表面シート。(5) The top sheet according to claim 2 or 4, wherein the skin contact area and the peripheral wall of the liquid guide tube have an air permeability of 10 cc/cm^2/sec or more.
記上面開口の各々の合計面積比率を２０〜７０％になし
てある請求項１記載の表面シート。(6) The top sheet according to claim 1, wherein the diameter of the upper surface opening is 0.3 to 2 mm, and the total area ratio of each of the upper surface openings is 20 to 70%.
製造したものを使用してある請求項１記載の表面シート
。(7) The surface sheet according to claim 1, wherein the nonwoven fabric is manufactured by a melt-blown nonwoven fabric manufacturing means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2142544A JP2809480B2 (en) | 1990-05-31 | 1990-05-31 | Surface sheet for absorbent articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2142544A JP2809480B2 (en) | 1990-05-31 | 1990-05-31 | Surface sheet for absorbent articles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0435662A true JPH0435662A (en) | 1992-02-06 |
| JP2809480B2 JP2809480B2 (en) | 1998-10-08 |
Family
ID=15317822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2142544A Expired - Lifetime JP2809480B2 (en) | 1990-05-31 | 1990-05-31 | Surface sheet for absorbent articles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2809480B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6274218B1 (en) * | 1998-03-26 | 2001-08-14 | Uni-Charm | Topsheet for body fluids absorbent article |
| DE112009000593T5 (en) | 2008-03-17 | 2011-02-10 | Park & Opc Co., Ltd. | Electrostatic image developing toner |
| WO2011019180A2 (en) | 2009-08-11 | 2011-02-17 | 주식회사 파캔오피씨 | Electrostatic image-developing toner |
| JP2011038240A (en) * | 2006-12-06 | 2011-02-24 | Tredegar Film Products Corp | Web having aperture with convex sides |
| JP6205534B1 (en) * | 2016-07-29 | 2017-09-27 | ユニ・チャーム株式会社 | Absorbent articles |
| WO2017187652A1 (en) * | 2016-07-29 | 2017-11-02 | ユニ・チャーム株式会社 | Absorbent article |
| CN109195561A (en) * | 2017-10-12 | 2019-01-11 | 尤妮佳股份有限公司 | Absorbent commodity |
-
1990
- 1990-05-31 JP JP2142544A patent/JP2809480B2/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6274218B1 (en) * | 1998-03-26 | 2001-08-14 | Uni-Charm | Topsheet for body fluids absorbent article |
| JP2011038240A (en) * | 2006-12-06 | 2011-02-24 | Tredegar Film Products Corp | Web having aperture with convex sides |
| DE112009000593T5 (en) | 2008-03-17 | 2011-02-10 | Park & Opc Co., Ltd. | Electrostatic image developing toner |
| WO2011019180A2 (en) | 2009-08-11 | 2011-02-17 | 주식회사 파캔오피씨 | Electrostatic image-developing toner |
| JP6205534B1 (en) * | 2016-07-29 | 2017-09-27 | ユニ・チャーム株式会社 | Absorbent articles |
| WO2017187652A1 (en) * | 2016-07-29 | 2017-11-02 | ユニ・チャーム株式会社 | Absorbent article |
| WO2018020676A1 (en) * | 2016-07-29 | 2018-02-01 | ユニ・チャーム株式会社 | Absorbent article |
| AU2016404371B2 (en) * | 2016-07-29 | 2018-11-08 | Unicharm Corporation | Absorbent article |
| CN109310538A (en) * | 2016-07-29 | 2019-02-05 | 尤妮佳股份有限公司 | Absorbent commodity |
| US10517774B2 (en) | 2016-07-29 | 2019-12-31 | Unicharm Corporation | Absorbent article |
| CN109195561A (en) * | 2017-10-12 | 2019-01-11 | 尤妮佳股份有限公司 | Absorbent commodity |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2809480B2 (en) | 1998-10-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100823759B1 (en) | Non-woven fabric top sheet of disposable wearing article | |
| KR100267603B1 (en) | Topsheet for use in disposable body fluid absorptive articles and, method and apparatus for making the same. | |
| JP2541516B2 (en) | Visibly Expanded Three-Dimensional Liquid Handling Polymer Webs | |
| JP4198978B2 (en) | Long absorbent article | |
| KR100804559B1 (en) | Body fluid absorbable wearing article | |
| JP3616728B2 (en) | Body fluid absorbent article | |
| KR100782962B1 (en) | Disposable wearing article | |
| JP3131062B2 (en) | Body fluid absorbent articles | |
| KR0122117Y1 (en) | Disposable body fluids absorbent padding | |
| KR0129231Y1 (en) | Topsheet for use in disposable body fluid absorptive goods | |
| JP3432176B2 (en) | Plastic composite sheet and method for producing the same | |
| JPH0678949A (en) | Surface sheet for body fluid absorptive article | |
| JPH1176295A (en) | Body-fluid absorbing article | |
| JPH11318983A (en) | Absorptive article | |
| JPH04187146A (en) | Surface sheet for absorptive product | |
| WO1997012573A1 (en) | Absorbent structure in an absorbent product such as an absorbent pants, diaper, incontinence protector, sanitary napkin, panty liner, dressing or the like | |
| JP2809491B2 (en) | Surface sheet for absorbent articles | |
| JP2907992B2 (en) | Surface sheet for absorbent articles | |
| JPH0435662A (en) | Surface sheet of absorbent substance | |
| JP2846448B2 (en) | Surface sheet for absorbent articles | |
| JP2849179B2 (en) | Surface sheet for absorbent articles | |
| JP2812340B2 (en) | Surface sheet for absorbent articles | |
| KR20040050054A (en) | Liquid permeable surface sheet of body liquid absorbable article | |
| JPH11113954A (en) | Surface raw material or filtering material for absorbent article, and its manufacture | |
| JP3922872B2 (en) | Absorbent article having an apertured film |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080731 Year of fee payment: 10 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080731 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090731 Year of fee payment: 11 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090731 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100731 Year of fee payment: 12 |
|
| EXPY | Cancellation because of completion of term |