JPH0696028B2 - Absorbent article facing material - Google Patents
Absorbent article facing materialInfo
- Publication number
- JPH0696028B2 JPH0696028B2 JP61175678A JP17567886A JPH0696028B2 JP H0696028 B2 JPH0696028 B2 JP H0696028B2 JP 61175678 A JP61175678 A JP 61175678A JP 17567886 A JP17567886 A JP 17567886A JP H0696028 B2 JPH0696028 B2 JP H0696028B2
- Authority
- JP
- Japan
- Prior art keywords
- woven fabric
- facing material
- fibers
- absorbent
- nonwoven fabric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 title claims description 58
- 239000002250 absorbent Substances 0.000 title claims description 31
- 230000002745 absorbent Effects 0.000 title claims description 17
- 239000004745 nonwoven fabric Substances 0.000 claims description 88
- 239000000835 fiber Substances 0.000 claims description 40
- 230000002209 hydrophobic effect Effects 0.000 claims description 17
- 239000000758 substrate Substances 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000002344 surface layer Substances 0.000 claims description 6
- 230000002940 repellent Effects 0.000 claims description 5
- 239000005871 repellent Substances 0.000 claims description 5
- -1 gauze Substances 0.000 description 18
- 238000000034 method Methods 0.000 description 16
- 239000008280 blood Substances 0.000 description 12
- 210000004369 blood Anatomy 0.000 description 12
- 210000002700 urine Anatomy 0.000 description 12
- 239000004743 Polypropylene Substances 0.000 description 8
- 229920000642 polymer Polymers 0.000 description 8
- 229920001155 polypropylene Polymers 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- 239000004094 surface-active agent Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 229920000098 polyolefin Polymers 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 229920002292 Nylon 6 Polymers 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 206010040880 Skin irritation Diseases 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 235000012907 honey Nutrition 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000874 polytetramethylene terephthalate Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000036556 skin irritation Effects 0.000 description 1
- 231100000475 skin irritation Toxicity 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Absorbent Articles And Supports Therefor (AREA)
- Laminated Bodies (AREA)
- Nonwoven Fabrics (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、尿や血液のような液体を吸収する吸収性基材
を被覆したり、あるいは該基材上に載置する液体吸収性
基材に対するフエーシング材に関し、とくに使い捨ての
紙オムツや生理用品のフエーシング材として好適な構成
の１部として不織布を含むフエーシング材に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a liquid-absorbent group which is coated on an absorbent substrate which absorbs liquid such as urine or blood, or which is placed on the substrate. The present invention relates to a facing material, and more particularly to a facing material containing a non-woven fabric as a part of a suitable structure for a disposable diaper or sanitary ware.
液体吸収性物品たとえばオムツや生理用ナプキンは、パ
ルプや吸水性高分子あるいはこれらの混合物からなる吸
水性基材の裏面に液漏れ防止のための裏当てシート、表
面に基材の保形のためのフエーシング材（あるいはトツ
プシートとも言われる）を備えた３層構造である。従
来、このフエーシング材としては不織布、ガーゼ、フイ
ルムが利用されている。Liquid absorbent articles, such as diapers and sanitary napkins, have a backing sheet for preventing liquid leakage on the back side of a water-absorbent substrate made of pulp, water-absorbent polymer or a mixture thereof, and for keeping the shape of the substrate on the surface. It has a three-layer structure including the facing material (also referred to as a topsheet). Conventionally, non-woven fabric, gauze, and film have been used as this facing material.
しかるに、不織布やガーゼは、吸水性基材にいつたん吸
収された液体が逆戻りしてオムツや生理用ナプキンの使
用者に不快感を与えると共に、乳児のように敏感な皮膚
を有する者は皮膚かぷれの一因ともなつている。However, non-woven fabrics and gauze are likely to cause the liquid absorbed by the water-absorbent substrate to return to the user and cause discomfort to the user of the diaper or sanitary napkin. It is also one of the reasons for PURE.
そこで、不織布やガーゼを構成する繊維を疎水性繊維と
するか、もしくは撥水加工を行うことも行われている
が、この方法では尿や血液が吸収性基材に速やかに到達
することができず、逆戻りは減少するもののの吸収性能
つまり親水性は低下するという問題点がある。Therefore, the fibers constituting the non-woven fabric or gauze are made to be hydrophobic fibers, or water repellent treatment is performed, but this method allows urine and blood to reach the absorbent base material promptly. However, there is a problem that the reversal is reduced but the absorption performance, that is, the hydrophilicity is reduced.
また、フイルムをフエーシング材に使用する場合には、
フイルムに小孔を設けるあるいは逆流防止のための弁状
物を設けた小孔を設ける等の手段も考えられるが、素材
であるフイルム自体が通気性に劣るため、皮膚かぶれの
原因となつている。When using the film as a facing material,
It is conceivable to provide a small hole in the film or a small hole provided with a valve for preventing backflow, but the film itself, which is the material, has poor breathability, which causes skin irritation. .
そのほか、パルプや吸水性高分子からなる吸水性基材の
保持のため、該基材をテイツシュで被覆し、その上に不
織布等を積層した構造のフエーシング材も存在するが、
テイシュ自身は親水性であるため液の吸水性は優れるも
のの、逆戻りに関してはやはり防止できない。In addition, in order to hold a water-absorbent base material made of pulp or a water-absorbent polymer, there is a facing material having a structure in which the base material is coated with a tissue and a non-woven fabric or the like is laminated thereon.
Since the tissue itself is hydrophilic, the water absorbency of the liquid is excellent, but it cannot prevent the reversion.
以上述べてきたように、従来の技術のフエーシング材の
多くは、吸水性および逆戻り防止の両面を完全に満足す
るもののないのが現状である。As described above, most of the conventional facing materials do not completely satisfy both of the water absorption and the reversion prevention.
そこで、本発明の目的の１つは、逆戻り防止性に優れた
フエーシング材を提供することにある。本発明の別の目
的は、吸水性すなわち親水性に優れたフエーシング材を
提供することにある。本発明の他の目的は、風合いが優
れ、皮膚との接触感覚が良好なフエーシング材を提供す
ることにある。本発明のさらに他の目的は、複雑で特殊
な構造ではなく、極めて単純な構成でもつて前記の目的
を達成できるフエーシング材を提供することにある。本
発明のさらに他の目的は、製造が簡単で、かつ、安価に
できるフエーシング材を提供することにある。本発明の
さらに他の目的は、明細書および図面の記載内容から明
らかとなるであろう。Therefore, one of the objects of the present invention is to provide a facing material having an excellent anti-backflow property. Another object of the present invention is to provide a facing material having excellent water absorbency, that is, hydrophilicity. Another object of the present invention is to provide a facing material having an excellent texture and a good feeling of contact with the skin. Still another object of the present invention is to provide a facing material which can achieve the above-mentioned object with an extremely simple structure, not a complicated and special structure. Still another object of the present invention is to provide a facing material which can be manufactured easily and at low cost. Other objects of the present invention will be apparent from the description of the specification and the drawings.
〔問題点を解決するための手段〕 すなわち本発明は、吸収性基材を被覆または該基材上に
載置するフエーシング材であつて、該フエーシング材は
親水性を有する不織布（Ａ）と３デニール以上の繊維に
よつて構成される疎水性の不織布（Ｂ）との積層構造で
あり、かつ、不織布（Ａ）が表層側および不織布（Ｂ）
が吸収性基材側になるように配置されていることを特徴
とする吸収性物品のフエーシング材である。[Means for Solving the Problems] That is, the present invention provides a facing material for covering or placing an absorbent base material on the base material, the facing material comprising a hydrophilic nonwoven fabric (A) and 3 It has a laminated structure with a hydrophobic non-woven fabric (B) composed of denier fibers or more, and the non-woven fabric (A) is on the surface layer side and the non-woven fabric (B).
Is arranged so that it is on the side of the absorbent substrate, and is a facing material for absorbent articles.
本発明のフエーシング材は、表層側となる親水性を有す
る不織布（Ａ）と吸収性基材側にむく疎水性を有する不
織布（Ｂ）とからなる。The facing material of the present invention comprises a hydrophilic non-woven fabric (A) on the surface layer side and a non-woven fabric (B) having hydrophobicity facing the absorbent substrate side.
不織布（Ａ）は、上記のようにフエーシング材の表層側
となり皮膚と直接接触するので、とくに風合いがよく感
触に優れたものがよく、ために構成繊維は出来るだけ細
く、目付量もある程度大きくして、ボリユーム感を出す
のが好ましい。したがつて、通常は１〜４デニールとく
に１〜２デニールの繊維によつて構成される目付量が15
〜50g/m2とくに20〜30g/m2の不織布が好適である。Since the non-woven fabric (A) is the surface layer side of the facing material and comes into direct contact with the skin as described above, it is preferable that the non-woven fabric has a particularly good texture and a good feel. Therefore, the constituent fibers should be as thin as possible and the basis weight should be large to some extent. Therefore, it is preferable to give a sense of volume. Therefore, the weight per unit area which is usually composed of 1 to 4 denier fibers, especially 1 to 2 denier fibers is 15
A non-woven fabric of -50 g / m 2 and especially 20-30 g / m 2 is suitable.
また、不織布（Ａ）は尿や血液が出来るだけ速やかに表
層側から吸収性基材に到達するように、親水性でなけれ
ばならない。したがつて、不織布（Ａ）を構成する繊維
として疎水性樹脂からなる疎水性繊維を用いる場合に
は、界面活性剤によつて表面処理するなどの親水処理を
行う。また、親水性樹脂からなる親水性繊維から構成さ
れておれば、そのまま用いてもよいし、さらに親水性を
高めるために親水処理を施してもかまわない。勿論、こ
の他に親水性を損なわない範囲で逆に撥水処理を行つ
て、若干の疎水性を付与しても一向に差し支えない。Further, the nonwoven fabric (A) must be hydrophilic so that urine and blood can reach the absorbent substrate from the surface side as quickly as possible. Therefore, when the hydrophobic fiber made of the hydrophobic resin is used as the fiber forming the nonwoven fabric (A), hydrophilic treatment such as surface treatment with a surfactant is performed. Further, as long as it is composed of hydrophilic fibers made of a hydrophilic resin, it may be used as it is, or may be subjected to a hydrophilic treatment to further enhance hydrophilicity. Of course, in addition to the above, water repellent treatment may be performed in the opposite range to the extent that hydrophilicity is not impaired, and some hydrophobicity may be imparted.
本発明において好適に用いられるのは、完全に親水性で
はなく、若干の疎水性も兼ねそなえた形態の不織布であ
る。すなわち、相対的には親水性であるので、尿や血液
が接触すると速やかに通過するが、逆戻りにより少量の
尿や血液が接触した場合には、若干存在する疎水性のた
めに、尿や血液が再通過して表層側に滲み出すことを防
止する。とくに、本発明のように、疎水性の不織布
（Ｂ）の存在によつて逆戻り量を大幅に減少でき、よつ
て極めて少量の逆戻り量しか不織布（Ａ）の裏面に到達
しない場合には有効である。かかる観点から、不織布
（Ａ）として最も好適な形は、疎水性繊維に親水処理を
施した形の疎水性が内在する不織布である。A non-woven fabric which is not completely hydrophilic but also has some hydrophobicity is preferably used in the present invention. That is, since it is relatively hydrophilic, it quickly passes when urine or blood comes into contact with it, but when a small amount of urine or blood comes into contact with it due to reversion, urine or blood is slightly present due to its hydrophobicity. Are prevented from re-passing and oozing to the surface side. In particular, as in the present invention, the presence of the hydrophobic non-woven fabric (B) makes it possible to greatly reduce the amount of reversion, which is effective when only a very small amount of reversion reaches the back surface of the non-woven fabric (A). is there. From this point of view, the most suitable form of the nonwoven fabric (A) is a nonwoven fabric having hydrophobicity in which hydrophobic fibers are subjected to hydrophilic treatment.
不織布は種々の製法で作られるものを使用できるが、と
くに好適にはスパンボンド法により製造されたものが好
ましい。すなわち、スパンボンド法による不織布は、連
続繊維が稠蜜に絡みあつた構造であるため、崇高かつ風
合いが優れ、また強度も非常に優れている。As the non-woven fabric, those produced by various production methods can be used, but the one produced by the spun bond method is particularly preferable. That is, the non-woven fabric produced by the spunbond method has a structure in which continuous fibers are entwined with dense honey, so that it is sublime and excellent in texture, and also has very excellent strength.
不織布を構成する繊維の原料となる高分子化合物は、水
溶性でない限り周知の種々のものが使用でき、たとえば
ポリエチレン、ポリプロピレン等のポリオレフイン、ポ
リエチレンテレフチレート、ポリテトラメチレンテレフ
タレート等のポリエステル、ナイロン６、ナイロン66等
のポリアミドさらにはレイヨン、ビニロン等も使用でき
る。勿論、ここで例示しない高分子化合物であつても、
繊維形成性で、かつ、得られる繊維が水溶性でない限り
使用できることは当業者にとり自明であろう。As the polymer compound which is a raw material of the fibers constituting the non-woven fabric, various known compounds can be used as long as they are not water-soluble. For example, polyethylene, polypropylene, etc., polyolefin, polyethylene terephthalate, polytetramethylene terephthalate, etc. polyester, nylon 6 Polyamide such as nylon 66, rayon, vinylon, etc. can also be used. Of course, even if the polymer compound is not exemplified here,
It will be apparent to those skilled in the art that it can be used as long as it is fiber-forming and the resulting fiber is not water soluble.
本発明の不織布（Ａ）の好適態様は、前述したようにス
パンボンド法によつて得られる疎水性繊維からなる不織
布に親水処理を施したものであるが、このような形で用
いられるのに好適な高分子化合物は、成形性、経済性、
機械的性質、耐薬品性等の面からポリオレフインとくに
ポリプロピレンが好ましい。A preferred embodiment of the non-woven fabric (A) of the present invention is a non-woven fabric made of hydrophobic fibers obtained by the spunbond method as described above, which has been subjected to a hydrophilic treatment. Suitable polymer compounds include moldability, economy,
From the viewpoints of mechanical properties, chemical resistance and the like, polyolefin is particularly preferable, and polypropylene is preferable.
親水処理は、前述したように界面活性剤で表面処理する
周知の方法によつて達成できるが、通常は不織布を製造
したあと、該不織布に界面活性剤を噴霧したり、ローラ
ーコーター等により表面に界面活性剤を塗布するか、あ
るいは界面活性剤中に浸漬して含浸させる等の方法が用
いられる。この際用いられる界面活性剤は、とくに制限
がなく、公知の種々のものが使用され、その種類および
塗布量は、最終製品の要求性能によつて適宜選択され
る。Hydrophilic treatment can be achieved by a well-known method of surface-treating with a surfactant as described above, but usually after producing a nonwoven fabric, the nonwoven fabric is sprayed with a surfactant, or a roller coater or the like is applied to the surface. A method of applying a surface-active agent or immersing in a surface-active agent for impregnation is used. The surfactant used at this time is not particularly limited, and various known surfactants are used, and the type and coating amount thereof are appropriately selected depending on the required performance of the final product.
不織布（Ｂ）は、不織布（Ａ）と吸水性基材との間に位
置し、よつて皮膚とは直接接触するものではない。不織
布（Ｂ）の主たる目的は、吸水性基材に到達して行つた
尿や血液が、吸水性基材に完全に吸収、保持される前
に、何らかの圧力を受けて逆戻りして、再度フエーシン
グ材側に滲み出ようとするのを防止すものである。よつ
て、不織布（Ｂ）は疎水性でなくてはならない。しか
し、単に疎水性の不織布であると、表層側から不織布
（Ａ）を通過して吸水性基材側へ移行しようとする尿や
血液の通過が阻害され、いつまでたつても尿や血液が表
層に残つた状態となる親水性に劣つたフエーシング材と
なる。本発明においては、このような問題を解決するた
めに、不織布（Ｂ）を構成する繊維を３デニール以上と
くに６デニール以上さらに好ましくは８デニール以上の
比較的太い繊維を用いることによつて解決した。このよ
うな太い繊維を用いることによつて、同一目付量にあつ
ては繊維表面積が減少し、かつ、繊維間空隙の大きな不
織布が構成され、よつて疎水性が見掛け上低下する。し
たがつて、表層側から通過してくる比較的多量の尿や血
液に対しては、その通過を阻害しないものの、逆戻りし
てくる少量の尿や血液には疎水性の性質を発揮し易く、
逆戻り防止層としての役目を果たすものと考えられる。The non-woven fabric (B) is located between the non-woven fabric (A) and the water-absorbent substrate and therefore does not come into direct contact with the skin. The main purpose of the non-woven fabric (B) is that urine and blood that have reached and reached the water-absorbent substrate undergo some pressure before they are completely absorbed and retained by the water-absorbent substrate, and then return to re-face. It prevents the material from bleeding out. Therefore, the nonwoven fabric (B) must be hydrophobic. However, if it is simply a hydrophobic non-woven fabric, the passage of urine and blood from the surface layer side through the non-woven fabric (A) to the water-absorbent substrate side is obstructed, and urine and blood are kept in the surface layer forever. It becomes a facing material that is inferior in hydrophilicity and remains in the state. In the present invention, in order to solve such a problem, a relatively thick fiber having a denier of 3 denier or more, particularly 6 denier or more, more preferably 8 denier or more is used as a fiber constituting the nonwoven fabric (B). . By using such thick fibers, the fiber surface area is reduced for the same basis weight, and a non-woven fabric having large inter-fiber voids is formed, so that the hydrophobicity is apparently reduced. Therefore, for a relatively large amount of urine and blood passing from the surface side, although it does not hinder its passage, it is easy for the small amount of urine and blood returning to exhibit a hydrophobic property,
It is considered to play a role as a backflow prevention layer.
不織布（Ｂ）を構成する繊維は、不織布（Ａ）の場合と
全く逆であり、親水性樹脂からなる親水性繊維を用いる
場合には、撥水剤によつて表面処理するなどの撥水処理
を行う。また、疎水性樹脂からなる疎水性繊維から構成
されておれば、そのまま用いてもよい。勿論、さらに疎
水性を高めるために撥水性を施してもかまわないし、逆
に疎水性を損なわない範囲で親水処理を行つて、若干の
親水性を付与しても一向に差支えない。The fibers constituting the non-woven fabric (B) are completely opposite to those in the non-woven fabric (A), and when hydrophilic fibers made of a hydrophilic resin are used, a water repellent treatment such as surface treatment with a water repellent agent is performed. I do. Further, as long as it is composed of a hydrophobic fiber made of a hydrophobic resin, it may be used as it is. Of course, water repellency may be applied to further increase the hydrophobicity, and conversely, hydrophilic treatment may be carried out within a range that does not impair the hydrophobicity to impart a slight hydrophilicity.
本発明において好適に用いられるのは、疎水性繊維から
なる不織布（Ｂ）である。すなわち、表層側から通過し
てくる尿や血液の流れを阻害しないようにするのは、繊
維径によつて調整しているので、構成繊維自体は逆戻り
防止を主眼とした疎水性繊維によつて構成されている方
がよい。また、不織布は種々の製法で作られるものを使
用できるが、不織布（Ａ）と同様の理由でスパンボンド
法によるものが好適である。以上の理由から、本発明の
不織布（Ｂ）として好適に利用されるものは、ポリオレ
フインとくにポリプロピレンを用いたスパンボンド法不
織布である。The non-woven fabric (B) made of hydrophobic fiber is preferably used in the present invention. That is, it is adjusted by the fiber diameter so as not to obstruct the flow of urine and blood passing from the surface side, so the constituent fiber itself is provided by the hydrophobic fiber whose main purpose is to prevent reversion. It should be configured. As the non-woven fabric, those produced by various production methods can be used, but the spun-bonding method is preferred for the same reason as for the non-woven fabric (A). For the above reasons, the non-woven fabric (B) of the present invention is preferably a spun-bonded non-woven fabric using polyolefin, especially polypropylene.
不織布（Ｂ）の目付は、種々の範囲を採ることができる
ものの、その目的および積層構造の位置付けから10〜30
g/m2とくに15〜25g/m2が好適である。The basis weight of the non-woven fabric (B) can take various ranges, but it is 10 to 30 from the purpose and the position of the laminated structure.
g / m 2, especially 15-25 g / m 2 are preferred.
不織布（Ｂ）は一層だけ用いてもよいが、必要に応じて
複数枚重ねて用いてもよい。不織布（Ｂ）の数が増加す
るに従い、逆戻りの防止効果は向上する。The non-woven fabric (B) may be used as a single layer, or may be used by stacking a plurality of layers as necessary. As the number of non-woven fabrics (B) increases, the effect of preventing reversion improves.
次に本発明のフエーシング材の応用例について、図面に
基づいて説明する。Next, application examples of the facing material of the present invention will be described with reference to the drawings.
第１図および第２図は本発明のフエーシング材を使い捨
ての紙オムツに応用した例である。1 and 2 show an example in which the facing material of the present invention is applied to a disposable diaper.
図中、１と11は本発明のフエーシング材を構成する不織
布（Ａ）であり、２と12は不織布（Ｂ）である。４と14
および５と15は、各吸水性基材を構成するパルプおよび
吸水性高分子である。吸収性基材の両側には、基材の保
形のための親水性向上のためテイシユ3,13が設けてあ
り、外側には、液漏れ防止のためのポリエチレンシート
6,16が設けてある。尚、第２図の場合には、吸水性高分
子層の強度保持のため不織布17が設けてある。この形態
では、人体と接触するのは当然ながら１または11であ
る。In the figure, 1 and 11 are non-woven fabrics (A) constituting the facing material of the present invention, and 2 and 12 are non-woven fabrics (B). 4 and 14
And 5 and 15 are the pulp and the water-absorbent polymer that constitute each water-absorbent substrate. Teshiyu 3,13 are provided on both sides of the absorbent base material to improve the hydrophilicity for shape retention of the base material, and on the outside, polyethylene sheet for liquid leakage prevention.
There are 6,16. In the case of FIG. 2, a non-woven fabric 17 is provided to maintain the strength of the water-absorbent polymer layer. In this configuration, the contact with the human body is naturally 1 or 11.
第３図は生理用ナプキンに応用した例である。図中、21
は本発明のフエーシング材を構成する不織布（Ａ）であ
り、22は不織布（Ｂ）である。24は吸収性基材、26は液
漏れ防止のためのポリエチレンシートである。28はクツ
シヨン材、29は粘着テープである。本態様においては、
フエーシング材が吸収性基材を被覆している形を採つて
いる。FIG. 3 is an example applied to a sanitary napkin. 21 in the figure
Is a non-woven fabric (A) which constitutes the facing material of the present invention, and 22 is a non-woven fabric (B). Reference numeral 24 is an absorbent base material, and 26 is a polyethylene sheet for preventing liquid leakage. 28 is a cushion material and 29 is an adhesive tape. In this aspect,
The facing material takes the form of covering the absorbent substrate.
このほか、図示しないものの、本発明のフエーシング材
の応用例としては、手術用吸血帯や産褥パツトなども可
能である。In addition, although not shown, as an application example of the facing material of the present invention, a surgical vampire band or a postpartum pad can be used.
以下に好適な例をもつて本発明の内容を詳しく説明する
が、とくにことわりのない限り本発明はこれらの例に制
限されるものではない。The contents of the present invention are described in detail below with reference to suitable examples, but the present invention is not limited to these examples unless otherwise specified.
尚、以下の実施例における逆戻り量と親水性の評価は次
の方法によつた。The amount of reversion and the hydrophilicity in the following examples were evaluated by the following methods.
（逆戻り量の評価） 縦、横各95mm、深さ10mmの枠の中にフエーシング材が上
になるように試験片を入れ、フエーシング材表面から70
mmの高さから0.1％の塩化ナトリウム水溶液を10cc/秒の
割合で８秒間試験片上に滴下する。滴下後５分間放置し
たのち、試験片を取り出し、試験片上に100mm四方の濾
紙（東洋濾紙No.526）20枚を重ねて置き、160mm×220mm
のアクリル板を介してさらに3.5kgの重りを載せ３分間
放置する。次に重りをはずし、さらに２分間放置後、濾
紙の重量を計る。この操作を３回繰り返し試験前の濾紙
との重量差から逆戻り量（ｇ）を算出する。(Evaluation of the amount of reversion) Put the test piece in the frame of 95 mm in length and width, and 10 mm in depth so that the facing material is on top.
From the height of mm, 0.1% sodium chloride aqueous solution is dropped onto the test piece at a rate of 10 cc / sec for 8 seconds. After leaving for 5 minutes after dropping, take out the test piece, put 20 pieces of 100 mm square filter paper (Toyo Filter Paper No.526) on the test piece, and put it on 160 mm x 220 mm
Place another 3.5 kg weight on the acrylic plate and leave for 3 minutes. Next, the weight is removed, and after standing for another 2 minutes, the filter paper is weighed. This operation is repeated 3 times and the amount of reversion (g) is calculated from the weight difference from the filter paper before the test.
（親水性の評価） 10枚重ねにしたトイシツトペーパー上にフエーシング材
が上になるように試験片を置き、フエーシング材表面か
ら15mm高さよりスポイドにて塩化ナトリウム0.1％水溶
液を１滴（約0.1g）滴下し、フエーシング材表面を通過
開始する迄の時間が２秒以上かかるものが10回中何回存
在するかで評価する。(Evaluation of hydrophilicity) A test piece was placed on 10 sheets of toys paper with the facing material facing up, and a drop of 0.1% sodium chloride solution (about 0.1 g) It is evaluated by how many times out of 10 times it takes 2 seconds or more to drop and start passing the surface of the facing material.
実施例１ ２デニールのポリプロピレン繊維からなる目付20g/m2の
スパンボンド法不織布に、ポリオキシエチレンアルキル
フエノール型非イオン界面活性剤の2.5％の水溶液を4cc
/m2の割合で塗布して親水処理を施し、本発明のフエー
シング材の不織布（Ａ）とした。また、４デニールのポ
リプロピレン繊維からなる目付20g/m2のスパンボント法
不織布をフエーシング材の不織布（Ｂ）とした。Example 1 A spunbonded non-woven fabric with a basis weight of 20 g / m 2 made of 2-denier polypropylene fiber was treated with 4 cc of a 2.5% aqueous solution of a polyoxyethylene alkylphenol type nonionic surfactant.
The non-woven fabric of the facing material of the present invention (A) was obtained by applying the coating material at a ratio of / m 2 and hydrophilic treatment. A spun-bonded non-woven fabric having a basis weight of 20 g / m 2 made of polypropylene fiber of 4 denier was used as the non-woven fabric (B) of the facing material.
吸水性高分子およびパルプからなる吸収性基材上に前記
不織布（Ｂ）、さらに不織布（Ａ）を表層側となるよう
に積層し、前述した方法で逆戻り量を測定した。The non-woven fabric (B) and further the non-woven fabric (A) were laminated on the absorbent substrate composed of the water-absorbent polymer and the pulp so that the non-woven fabric was on the surface side, and the amount of reversion was measured by the method described above.
また、トイレツトペーパー10枚重ねの上に不織布
（Ｂ）、さらに不織布（Ａ）を積層し、前述した方法で
親水性を測定した。Further, the non-woven fabric (B) and the non-woven fabric (A) were laminated on 10 sheets of toilet paper, and the hydrophilicity was measured by the method described above.
結果を第１表に示す。The results are shown in Table 1.
比較例１ 不織布（Ｂ）として、２デニールのポリプロピレン繊維
からなる目付20g/m2のスパンボンド法不織布を使用する
以外は実施例１と同様に行つた。Comparative Example 1 A non-woven fabric (B) was prepared in the same manner as in Example 1 except that a spun-bonded non-woven fabric made of 2 denier polypropylene fiber and having a basis weight of 20 g / m 2 was used.
結果を第１表に示す。The results are shown in Table 1.
比較例２ 不織布（Ｂ）として、２デニールのナイロン６繊維から
なる目付25g/m2の不織布を使用する以外は実施例１と同
様に行つた。Comparative Example 2 The procedure of Example 1 was repeated except that a non-woven fabric (B) having a basis weight of 25 g / m 2 made of 2 denier nylon 6 fiber was used.
結果を第１表に示す。The results are shown in Table 1.
比較例３ 不織布（Ｂ）を使用しない以外は実施例１と同様に行つ
た。結果を第１表に示す。Comparative Example 3 The procedure of Example 1 was repeated except that the nonwoven fabric (B) was not used. The results are shown in Table 1.
実施例２ 不織布（Ｂ）として８デニールのポリプロピレン繊維か
らなる目付20g/m2のスパンボンド法不織布を使用する以
外は、実施例１と同様に行つた。Example 2 The procedure of Example 1 was repeated, except that a spunbond nonwoven fabric having a basis weight of 20 g / m 2 made of 8 denier polypropylene fiber was used as the nonwoven fabric (B).
結果を第１表に示す。The results are shown in Table 1.
実施例３ 不織布（Ｂ）として４デニールのポリプロピレン繊維か
らなる目付12g/m2のスパンボンド法不織布を使用する以
外は、実施例１と同様に行つた。Example 3 The procedure of Example 1 was repeated, except that a spunbonded non-woven fabric having a basis weight of 12 g / m 2 made of polypropylene fiber of 4 denier was used as the non-woven fabric (B).
結果を第１表に示す。The results are shown in Table 1.
第１表の結果を見ても判るとおり、本発明のフエーシン
グ材は逆戻り量を減少させると共に親水性もそれ程損な
わないことが判る。一方、不織布（Ｂ）として細デニー
ル繊維から構成されるものは逆戻り量もしくは親水性の
いずれかが悪く、両者のバランスを計れないことが判
る。 As can be seen from the results shown in Table 1, it is understood that the facing material of the present invention reduces the amount of reversion and does not impair the hydrophilicity. On the other hand, it can be seen that the nonwoven fabric (B) composed of fine denier fibers is poor in either the amount of reversion or the hydrophilicity and cannot balance the two.
実施例４〜５ 実施例1,2の構成において不織布（Ｂ）を２枚積層し、
フエーシング材として不織布（Ａ）／不織布（Ｂ）／不
織布（Ｂ）の構成とする以外は、実施例１と同様に逆戻
り量を測定した。Examples 4 to 5 Two non-woven fabrics (B) are laminated in the constitution of Examples 1 and 2,
The amount of reversion was measured in the same manner as in Example 1 except that the non-woven fabric (A) / non-woven fabric (B) / non-woven fabric (B) was used as the facing material.
結果を第２表に示す。The results are shown in Table 2.
比較例４〜５ 比較例2,3の構成において、不織布（Ｂ）を２枚積層す
る以外は実施例４と同様に行つた。Comparative Examples 4 to 5 The procedure of Example 4 was repeated except that the two nonwoven fabrics (B) were laminated in the configurations of Comparative Examples 2 and 3.
結果を第２表に示す。The results are shown in Table 2.
比較例６ 不織布（Ｂ）として３ブニールの親水性ポリエチレンテ
レフタレート繊維からなる目付20g/m2の不織布を使用す
る以外は実施例４と同様に行つた。Comparative Example 6 The procedure of Example 4 was repeated except that a non-woven fabric (B) having a basis weight of 20 g / m 2 made of hydrophilic polyethylene terephthalate fiber having 3 bunils was used.
結果を第２表に示す。The results are shown in Table 2.
第２表に示すように、本発明のフエーシング材におい
て、不織布（Ｂ）を２枚重ねにして用いると、さらに逆
戻り量の低下を計ることのできることが判る。 As shown in Table 2, in the facing material of the present invention, when the two nonwoven fabrics (B) are used in a stacked manner, it is possible to further reduce the amount of reversion.
第１図〜第３図は本発明のフエーシング材を吸収性物品
に応用した実施例を示す図である。1 to 3 are views showing an embodiment in which the facing material of the present invention is applied to an absorbent article.
Claims (8)
るフエーシング材であつて、該フエーシング材は親水性
を有する不織布（Ａ）と３デニール以上の繊維によつて
構成される疎水性の不織布（Ｂ）との積層構造であり、
かつ、不織布（Ａ）が表層側および不織布（Ｂ）が吸収
性基材側になるように配置されていることを特徴とする
吸収性物品のフエーシング材。1. A facing material for covering or placing an absorbent base material on the base material, the facing material comprising a hydrophilic non-woven fabric (A) and fibers of 3 denier or more. It has a laminated structure with a hydrophobic nonwoven fabric (B),
Further, a facing material for an absorbent article, wherein the nonwoven fabric (A) is arranged so that the surface layer side thereof and the nonwoven fabric (B) are arranged on the absorbent substrate side thereof.
成される、目付が15〜50g/m2の不織布である特許請求の
範囲第１項に記載のフエーシング材。2. The facing material according to claim 1, wherein the non-woven fabric (A) is a non-woven fabric composed of fibers having a denier of 1 to 4 and having a basis weight of 15 to 50 g / m 2 .
許請求の範囲第１項または第２項に記載のフエーシング
材。3. The facing material according to claim 1 or 2 , wherein the basis weight of the nonwoven fabric (B) is 10 to 30 g / m 2 .
の範囲第１項ないし第３項のいずれかに記載のフエーシ
ング材。4. The facing material according to any one of claims 1 to 3, wherein a plurality of nonwoven fabrics (B) are used.
ている特許請求の範囲第１項ないし第４項のいずれかに
記載のフエーシング材。5. The facing material according to any one of claims 1 to 4, wherein the nonwoven fabric (A) is composed of hydrophilic fibers.
れ、かつ、親水処理を施されている特許請求の範囲第１
項ないし第４項のいずれかに記載のフエーシング材。6. The non-woven fabric (A) is composed of hydrophobic fibers and is hydrophilically treated.
Item 5. The facing material according to any one of items 4 to 4.
ている特許請求の範囲第１項ないし第６項のいずれかに
記載のフエーシング材。7. The facing material according to any one of claims 1 to 6, wherein the nonwoven fabric (B) is composed of hydrophobic fibers.
れ、かつ、撥水処理を施されている特許請求の範囲第１
項ないし第６項のいずれかに記載のフエーシング材。8. The non-woven fabric (B) is composed of hydrophilic fibers and is subjected to a water repellent treatment.
Item 7. The facing material according to any one of Items 6 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61175678A JPH0696028B2 (en) | 1986-07-28 | 1986-07-28 | Absorbent article facing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61175678A JPH0696028B2 (en) | 1986-07-28 | 1986-07-28 | Absorbent article facing material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6331659A JPS6331659A (en) | 1988-02-10 |
| JPH0696028B2 true JPH0696028B2 (en) | 1994-11-30 |
Family
ID=16000321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61175678A Expired - Lifetime JPH0696028B2 (en) | 1986-07-28 | 1986-07-28 | Absorbent article facing material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0696028B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3987684B2 (en) * | 2000-11-21 | 2007-10-10 | ユニ・チャーム株式会社 | Absorbent articles |
| CN1809390B (en) * | 2003-06-26 | 2010-11-17 | 株式会社瑞光 | wound covering material and wound covering material kit |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55171026U (en) * | 1979-05-24 | 1980-12-08 | ||
| JPS60198151A (en) * | 1984-03-21 | 1985-10-07 | ユニ・チヤ−ム株式会社 | Exterior material of sanitary article and its production |
| JP2590058B2 (en) * | 1985-07-19 | 1997-03-12 | 花王株式会社 | Absorbent articles |
-
1986
- 1986-07-28 JP JP61175678A patent/JPH0696028B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6331659A (en) | 1988-02-10 |
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