JPH0441760A - Surface sheet of absorbing member and its production - Google Patents
Surface sheet of absorbing member and its productionInfo
- Publication number
- JPH0441760A JPH0441760A JP2145987A JP14598790A JPH0441760A JP H0441760 A JPH0441760 A JP H0441760A JP 2145987 A JP2145987 A JP 2145987A JP 14598790 A JP14598790 A JP 14598790A JP H0441760 A JPH0441760 A JP H0441760A
- Authority
- JP
- Japan
- Prior art keywords
- fiber
- fibers
- melting point
- nonwoven fabric
- low melting
- 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
Landscapes
- Treatment Of Fiber Materials (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、吸収性物品に用いるための表面シート及び
その製造方法に関し、更に詳しくは、生理ナプキン、使
い捨てオムツなどの体液を吸収する物品の表面を形成す
るための表面シート及びその製造方法に関する。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a surface sheet for use in absorbent articles and a method for manufacturing the same, and more particularly, to a surface sheet for use in absorbent articles, and more specifically, for use in articles that absorb body fluids such as sanitary napkins and disposable diapers. The present invention relates to a surface sheet for forming a surface and a method for manufacturing the same.
（従来の技術、発明か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て配列した
開孔を有するものか知られている。しかし、この表面シ
ートは、全体にわたって無数の繊維間隙（目）を有して
いるため、体液か繊維間隙に残留したり下面から上面へ
滲出したりし、湿潤感の解消がいまた不十分である。(Prior Art, Problems to be Solved by the Invention) Conventionally, this type of top sheet has been used to reduce the feeling of body fluid wetness on the wearer's skin and to relatively increase body fluid permeability. It is known that a nonwoven fabric has apertures arranged in a given pattern. However, since this top sheet has countless fiber gaps (eyes) throughout, body fluids may remain in the fiber gaps or leak from the bottom surface to the top surface, making it insufficient to eliminate the wet feeling. .
一方、こうした欠点を除去することなどのを目的とする
表面シートとして、疎水性プラスチックフィルムに所与
パターンで毛細管を形成したものか知られている。しか
し、この表面シートは、着用者の肌に密着しすぎ、その
結果、表面シートと肌とに蒸れが生じて、肌に皮膚病の
原因となるかぶれ、ふやけを起こしたり、更には、不快
なべとつき、かゆみなどをも生じさせる。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保
っているから、繊維布に比較して外観や肌ざわりもよく
ない。On the other hand, as a surface sheet for the purpose of eliminating such defects, a surface sheet in which capillaries are formed in a given pattern on a hydrophobic plastic film is known. However, this top sheet adheres too closely to the wearer's skin, resulting in stuffiness between the top sheet and the skin, causing rashes and swelling that can cause skin diseases, and even causing discomfort. It also causes stickiness and itching. Furthermore, since this topsheet still maintains the properties of the film itself, it does not have a good appearance or feel compared to fiber cloth.
この発明の課題は、熱可塑性繊維が融着していて繊維間
隙をほとんど有していない開孔不織布からなる不織布を
吸収性物品の表面シートとして用いることにより、前記
欠点をなくすことにある。An object of the present invention is to eliminate the above-mentioned drawbacks by using a nonwoven fabric made of a perforated nonwoven fabric in which thermoplastic fibers are fused and have almost no fiber gaps as the top sheet of an absorbent article.
（課題を解決するための手段）
前記！！！題を解決するための、この発明に係る表面シ
ートは、所与パターンで配列する開孔を有し、熱可塑性
ｍ誰から不織布にＩＩＩｔｔされ、この不織布にはｍ＃
Ｉ形態を保っているａＳＳが全域に分布しているととも
に、この繊維がａａ＊形態を失っている膜状化部分を介
して融着している。(Means for solving the problem) Above! ! ! To solve the problem, the top sheet according to the present invention has apertures arranged in a given pattern and is made of a thermoplastic material into a non-woven fabric, and the non-woven fabric has an aperture of m#.
The aSS that maintains the I form is distributed throughout the area, and the fibers are fused through the membrane-like part that has lost the aa* form.
繊維形態を保っている繊維は、少なくとも２０であるこ
とが好ましい。Preferably, at least 20 fibers maintain their fibrous form.
前記表面シートの製造方法は、融点の高い熱可塑性繊維
と融点の低い熱可塑性繊維とから繊維ウェブを構成する
工程と、この繊維ウェブを高速流体で繊維交絡処理して
不織布化するとともに所与パターンで開孔を配列形成す
る工程と、この不織布を熱処理して前記融点の低い熱可
塑性繊維を融かし繊維形態を失わせて膜状化させるとと
もに、この膜状化部分を介して前記融点の高い熱可塑性
繊維を融着させる工程とからなる。The method for manufacturing the top sheet includes the steps of forming a fibrous web from thermoplastic fibers with a high melting point and thermoplastic fibers with a low melting point, and processing the fibrous web with a high-speed fluid to form a nonwoven fabric, and forming a predetermined pattern. This nonwoven fabric is heat-treated to melt the thermoplastic fibers with a low melting point and lose their fiber form to form a film, and through this film-formed part, the thermoplastic fibers with a low melting point are formed into a film. It consists of a step of fusing highly thermoplastic fibers.
（作用、効果）
前記構成を有するこの発明に係る表面シートによれば１
表面シートは、繊維形態を保つ繊維を有しているととも
に、この繊維の間か膜状化部分て接合している。したか
って、繊維不織布様の感触を有する。しかも、繊維の間
が膜状化部分て実質的に不透液性になり（もとより開孔
は体液か通る）、表面シートの上面に体液か滞留するこ
とか極めて少ないとともに、その下面から上面に体液が
滲出することがない、それゆえに、既述した従来技術か
有する欠点をことごとく除去することができる。(Operations and Effects) According to the top sheet of the present invention having the above structure, 1
The top sheet has fibers that maintain their fibrous form, and the fibers are joined together by a membrane-like portion. Therefore, it has a texture similar to that of a fibrous nonwoven fabric. Moreover, the membranous portions between the fibers are virtually liquid-impermeable (bodily fluids can pass through the openings), and it is extremely unlikely that body fluids will remain on the top surface of the top sheet. There is no leakage of body fluids, and therefore all the drawbacks of the prior art described above can be eliminated.
前述のように、この発明に係る表面シートは、開孔以外
は実質的に不透液性を有しているが、本発明に係るその
製造方法によれば、その最終工程における熱処理操作に
よって通気性をも有するようにすることもできる。この
製造方法においては１本来１通気性か極めて高い繊維ウ
ェブの中の融点の低い熱可塑性繊維たけを融かして膜状
化するので、その膜状化部分の割合を適宜調整すればよ
いからである。As mentioned above, the surface sheet according to the present invention is substantially liquid-impermeable except for the openings, but according to the manufacturing method according to the present invention, ventilation is prevented by the heat treatment operation in the final step. It can also be made to have a gender. In this manufacturing method, thermoplastic fibers with a low melting point in a fiber web with extremely high air permeability are melted to form a film, so the proportion of the film-formed portion can be adjusted as appropriate. It is.
（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、以下のとおりである。(Example) An example of the topsheet 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用いる吸収性物
品の一例としての、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ｌは、吸収性コア３と、その下面
からその両側にわたって位置する不透液性裏面シートと
、これら全体を被覆する表面シート１１とからなってい
る。この表面シート１１は、所与パターンで配列する後
記開孔を有するかゆえに透液性である。FIG. 1 shows a partially cutaway perspective view of a sanitary napkin as an example of an absorbent article using a topsheet according to the present invention. The napkin 1 consists of an absorbent core 3, a liquid-impermeable back sheet located from the bottom surface to both sides thereof, and a top sheet 11 that covers the entirety thereof. This top sheet 11 is liquid-permeable because it has apertures, which will be described later, arranged in a given pattern.
第２図及び第３図は、表面シート１１の製造工程の一部
としての繊維ウェブの模式断面図を示す。第２図に示す
ように、融点の高い熱可塑性繊維ウェブ１２と融点の低
い熱可塑性繊維ウェブ１３とを交互に重ね合せて、被処
理繊維ウェブ１４を形成する。この場合、繊維ウェブ１
２，１３の重ね合せ順序は、図示例とは逆にしてもよく
、特に問わないか、少なくとも一つの融点の高い熱可塑
性繊維ウェブ１２を最上面（肌当面）に位置させて後記
熱処理を施こした場合には、繊維形態を保つ繊維か肌当
面に比較的多く存在する不織布を得ることかできる一方
、少なくとも一つの融点の低い熱可塑性繊維ウェブ１３
を最上面（肌当面）に位置させて後記熱処理を施こした
場合には、膜状化部分か比較的多く存在する不織布を得
ることかてきる。また、各繊維ウェブ１２，１３の重量
（目付、密度）、繊度は、同じにする場合と、異ならせ
る場合とがある。以上の場合のいずれにするかの基準は
、一般的には肌ざわり、強度などを考慮して決めること
ができる。2 and 3 show schematic cross-sectional views of a fibrous web as part of the manufacturing process of the topsheet 11. FIG. As shown in FIG. 2, a thermoplastic fiber web 12 with a high melting point and a thermoplastic fiber web 13 with a low melting point are alternately stacked to form a fiber web 14 to be treated. In this case, the fiber web 1
The stacking order of 2 and 13 may be reversed from the illustrated example and is not particularly limited, or at least one thermoplastic fiber web 12 with a high melting point may be placed on the uppermost surface (facing the skin) and subjected to the heat treatment described below. In the case of straining, it is possible to obtain a nonwoven fabric in which fibers that maintain their fiber form are present in a relatively large amount on the skin, while at least one thermoplastic fiber web 13 with a low melting point can be obtained.
When the heat treatment described below is performed while the nonwoven fabric is placed on the uppermost surface (the surface facing the skin), a nonwoven fabric having a relatively large amount of film-formed portions can be obtained. Further, the weight (fabric weight, density) and fineness of each fiber web 12, 13 may be the same or different. The criteria for selecting one of the above cases can generally be determined by considering texture, strength, etc.
第３ 図に示すように、被処理繊維ウェブ１４にかえて
、融点の高い熱可塑性繊維と、融点の低い熱可塑性繊維
とを混合して被処理繊維ウェブ１４ａを形成する。As shown in FIG. 3, instead of the processed fiber web 14, thermoplastic fibers with a high melting point and thermoplastic fibers with a low melting point are mixed to form a processed fiber web 14a.
融点の高い熱可塑性繊維と融点の低い熱可塑性繊維との
間の融点差は、１５°Ｃ以上であることが、後記熱処理
の安定性、融点の高い熱可塑性繊維の繊維形態に悪影響
を及ぼさないうえで好ましい。The difference in melting point between the thermoplastic fiber with a high melting point and the thermoplastic fiber with a low melting point is 15 ° C or more, which does not adversely affect the stability of the heat treatment described below and the fiber morphology of the thermoplastic fiber with a high melting point. Yes, it is preferable.
被処理繊維ウェブ１４，１４ａにおける融点の高い熱可
塑性繊維と融点の低い熱可塑性繊維との割合は、前者が
２０〜８０重量％、後者が８０〜２０重量％か好ましい
。更には、前者が４０〜６０重量％、後者か６０〜４０
重量％であることが、なかんずく、前者が後者よりも多
いことが、本発明の所期の目的を達成するうえで好まし
い。The proportion of thermoplastic fibers with a high melting point and thermoplastic fibers with a low melting point in the treated fiber webs 14, 14a is preferably 20 to 80% by weight for the former and 80 to 20% by weight for the latter. Furthermore, the former is 40 to 60% by weight, and the latter is 60 to 40% by weight.
In particular, it is preferable that the former be greater than the latter in order to achieve the intended purpose of the present invention.
被処理繊維ウェブ１４又は１４ａは、図示してない、高
速流体、例えば高速水流による繊維交絡処理で処理を施
こして繊維を交絡させると同時に所与パターンの開孔１
５又は１５ａを形成した被処理不織布１６又は１６ａを
得る（第４図）。The fibrous web 14 or 14a to be treated is subjected to a fiber entangling treatment using a high-speed fluid such as a high-speed water stream (not shown) to entangle the fibers and at the same time form openings 1 in a given pattern.
5 or 15a is obtained (FIG. 4).
この方法にかえて、図示してないが、熱エンボス装置で
処理を施こして繊維を接合させると同時に開孔１５又は
１５ａを形成した被処理不織布１６又は１６ａを得ても
よい（第５図）。Instead of this method, although not shown, the nonwoven fabric 16 or 16a to be treated may be treated with a heat embossing device to join the fibers and at the same time form the openings 15 or 15a (see Fig. 5). ).
更に、被処理不織布１６．１６ａを加熱カレンダー、サ
クションドライヤー、長音波のいずれかの装置で、融点
の低い熱可塑性繊維の融点温度の加熱下に処理を施こし
て、融点の低い熱可塑性繊維を融かして繊維形態を失わ
せて膜状化させるとともに、この膜状化部分を介して融
点の高い熱可塑性繊維を融着させることで、表面シート
１１を得る。したがって、この表面シート１１において
は、融点の高い熱可塑性繊維が繊維形態を保ち、これが
全域にほぼ均一に分布することになる。Furthermore, the nonwoven fabric 16.16a to be treated is heated to a temperature of the melting point of the thermoplastic fiber with a low melting point using a heating calendar, a suction dryer, or a long sonic device to produce a thermoplastic fiber with a low melting point. The top sheet 11 is obtained by melting the fiber to lose its fiber form and forming it into a film, and then fusing thermoplastic fibers with a high melting point through this film-formed portion. Therefore, in this topsheet 11, the thermoplastic fibers with a high melting point maintain their fiber form and are distributed almost uniformly over the entire area.
被処理繊維ウェブ１４としては、ポリエチレン、ポリプ
ロピレン、ポリエステル、ポリスチレン、ナイロン、ポ
リウレタンなどの合成樹脂を素材とする繊維からなるカ
ードウェブ、エアレイウエブをどの繊維未接合ウェブや
、それら合成樹脂のメルトブロー繊維不織布なとの繊維
接合不織布を適宜組み合せて用いることができる。また
、被処理ウェブ１４ａとしては、前記繊維の２種類以上
を混合したものを用いることかできる。これら繊維は３
デニール以下、特に１デニール以下であることが、前記
繊維交絡処理、前記膜状化、肌ざわりなどのうえで好ま
しい。The fibrous web 14 to be treated may be any carded web or air-lay web made of fibers made of synthetic resins such as polyethylene, polypropylene, polyester, polystyrene, nylon, or polyurethane, unbonded webs of fibers, or melt-blown fiber nonwoven fabrics of these synthetic resins. Fiber-bonded nonwoven fabrics can be used in appropriate combinations. Furthermore, the web 14a to be processed may be a mixture of two or more of the above-mentioned fibers. These fibers are 3
The denier or less, particularly 1 denier or less, is preferable in terms of the fiber entanglement treatment, film formation, texture, etc.
なお、図示してないが、前記平面的な開孔１５．１５ａ
にかえて、既述した従来技術の一つのように、その開孔
の周縁から下方向に突出する導液管を形成することもで
きる。Although not shown, the planar opening 15.15a
Alternatively, it is also possible to form a liquid conduit that projects downward from the periphery of the opening, as in one of the prior art techniques described above.
第１図は、この発明に係る表面シートを用いる吸収性物
品の一例としての生理用ナプキンの一部破断斜視図てあ
り、
第２図及び第３図は、被処理繊維ウェブの一部の模式断
面図てあり、
第４図及び第５図は、開孔を形成した被処理不織布の一
部の模式断面図である。
ｌｌ：表面シート
１４．１４ａ：被処理繊維ウェブ
１５．１５ａ：開孔
１６．１６ａコ被処理不織布FIG. 1 is a partially cutaway perspective view of a sanitary napkin as an example of an absorbent article using the top sheet according to the present invention, and FIGS. 2 and 3 are schematic diagrams of a portion of the fibrous web to be treated. FIG. 4 and FIG. 5 are schematic cross-sectional views of a part of the nonwoven fabric to be treated in which openings are formed. ll: Surface sheet 14.14a: Treated fiber web 15.15a: Open pores 16.16a Co-treated nonwoven fabric
Claims (3)
の表面シートにおいて、熱可塑性繊維から不織布が構成
され、この不織布には繊維形態を保っている繊維が全域
に分布しているとともに、この繊維が繊維形態を失って
いる膜状化部分を介して融着していることを特徴とする
前記表面シート。(1) In the top sheet of an absorbent article having apertures arranged in a given pattern, a nonwoven fabric is composed of thermoplastic fibers, and the nonwoven fabric has fibers that maintain a fiber form distributed throughout the area, The above-mentioned topsheet is characterized in that the fibers are fused together through a membrane-like portion that has lost its fiber form.
ある請求項１記載の表面シート。(2) The topsheet according to claim 1, wherein at least 20% of the fibers maintain a fiber form.
維とから繊維ウエブを構成する工程と、この繊維ウエブ
を高速流体で繊維交絡処理して不織布化するとともに所
与パターンて開孔を配列形成する工程と、この不織布を
熱処理して前記融点の低い熱可塑性繊維を融かし繊維形
態を失わせて膜状化させるとともに、この膜状化部分を
介して前記融点の高い熱可塑性繊維を融着させる工程と
からなる吸収性物品の表面シートの製造方法。(3) A process of forming a fiber web from thermoplastic fibers with a high melting point and thermoplastic fibers with a low melting point, and processing the fiber web with a high-speed fluid to form a non-woven fabric, and arranging apertures in a given pattern. forming the nonwoven fabric, heat-treating the nonwoven fabric to melt the low melting point thermoplastic fibers to lose their fiber form and form a film, and pass the high melting point thermoplastic fibers through this film-formed portion. A method for manufacturing a top sheet of an absorbent article, which comprises a step of fusing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2145987A JP2947880B2 (en) | 1990-06-04 | 1990-06-04 | Surface sheet for absorbent article and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2145987A JP2947880B2 (en) | 1990-06-04 | 1990-06-04 | Surface sheet for absorbent article and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0441760A true JPH0441760A (en) | 1992-02-12 |
| JP2947880B2 JP2947880B2 (en) | 1999-09-13 |
Family
ID=15397567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2145987A Expired - Lifetime JP2947880B2 (en) | 1990-06-04 | 1990-06-04 | Surface sheet for absorbent article and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2947880B2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53111170A (en) * | 1977-03-03 | 1978-09-28 | Mitsubishi Rayon Co | Production of gauze like porous nonnwoven sheet |
| JPS59157366A (en) * | 1983-02-21 | 1984-09-06 | ユニチカ株式会社 | Water pervious and wetting controllable long fiber nonwoven fabric |
| JPS6297955A (en) * | 1985-10-07 | 1987-05-07 | キンバリ− クラ−ク コ−ポレ−シヨン | Multilayered nonwoven fabric |
-
1990
- 1990-06-04 JP JP2145987A patent/JP2947880B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53111170A (en) * | 1977-03-03 | 1978-09-28 | Mitsubishi Rayon Co | Production of gauze like porous nonnwoven sheet |
| JPS59157366A (en) * | 1983-02-21 | 1984-09-06 | ユニチカ株式会社 | Water pervious and wetting controllable long fiber nonwoven fabric |
| JPS6297955A (en) * | 1985-10-07 | 1987-05-07 | キンバリ− クラ−ク コ−ポレ−シヨン | Multilayered nonwoven fabric |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2947880B2 (en) | 1999-09-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5935682A (en) | Facing sheet for an absorbent article and method for producing same | |
| KR100369952B1 (en) | Liquid absorbent materials for personal hygiene absorbent products | |
| US7005558B1 (en) | Apertured covering sheet for an absorbent article and a method of producing the covering sheet | |
| US5171238A (en) | Absorbent pad with fibrous facing sheet | |
| JP6680851B2 (en) | Absorbent article | |
| US6277104B1 (en) | Air permeable, liquid impermeable barrier structures and products made therefrom | |
| JP6185155B2 (en) | Non-woven web material having improved smooth flexibility and good strength properties and method of manufacture | |
| US7323072B2 (en) | Multi-roll bonding and aperturing | |
| CN112912046A (en) | Nonwoven web with visually discernable pattern | |
| JPH1014979A (en) | Disposable humor absorbing article | |
| ZA200308778B (en) | Laminate made of fibrous layers | |
| JP2002065738A (en) | Absorptive article using surface material of continuous filament | |
| JPH04187146A (en) | Surface sheet for absorptive product | |
| CZ284462B6 (en) | Composite non-woven material and process for producing thereof | |
| JPS61125343A (en) | Surface material of absorbable article and its production | |
| JPS62170565A (en) | Surface material of absorbable article and its production | |
| JPH0458951A (en) | Surface sheet of absorptive article | |
| KR100679205B1 (en) | Fibrous wrinkled fabric | |
| US6419865B1 (en) | Bonded fluff structures and process for producing same | |
| JPH0424261A (en) | Nonwoven fabric, production thereof and absorbing article | |
| JPH11302955A (en) | Stretchable nonwoven fabric for sanitary use and its production | |
| US7919169B2 (en) | Laminate made of fibrous layers for use in absorbent articles | |
| JPH0441760A (en) | Surface sheet of absorbing member and its production | |
| JP2974340B2 (en) | Sanitary goods surface materials | |
| JPH03297464A (en) | Surface material sheet for body fluid absorbing article and the absorbing article |
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: 20080702 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080702 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090702 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090702 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100702 Year of fee payment: 11 |
|
| EXPY | Cancellation because of completion of term |