JPH03123552A - Sanitary material - Google Patents
Sanitary materialInfo
- Publication number
- JPH03123552A JPH03123552A JP2216596A JP21659690A JPH03123552A JP H03123552 A JPH03123552 A JP H03123552A JP 2216596 A JP2216596 A JP 2216596A JP 21659690 A JP21659690 A JP 21659690A JP H03123552 A JPH03123552 A JP H03123552A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- fiber
- fibers
- melt
- softening
- 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
- 239000000463 material Substances 0.000 title claims description 14
- 239000000835 fiber Substances 0.000 claims abstract description 76
- 238000002844 melting Methods 0.000 claims abstract description 18
- 230000008018 melting Effects 0.000 claims abstract description 16
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 239000004745 nonwoven fabric Substances 0.000 claims description 45
- 230000002745 absorbent Effects 0.000 claims description 8
- 239000002250 absorbent Substances 0.000 claims description 8
- 239000000155 melt Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 abstract description 6
- 229920000728 polyester Polymers 0.000 abstract description 5
- 229920000297 Rayon Polymers 0.000 abstract description 4
- 239000002964 rayon Substances 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 229920001169 thermoplastic Polymers 0.000 abstract description 3
- 239000004416 thermosoftening plastic Substances 0.000 abstract description 3
- 229920002292 Nylon 6 Polymers 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 2
- -1 polypropylene Polymers 0.000 description 10
- 239000004743 Polypropylene Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 229920001155 polypropylene Polymers 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 210000001124 body fluid Anatomy 0.000 description 2
- 239000010839 body fluid Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000032798 delamination Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 208000010201 Exanthema Diseases 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 201000005884 exanthem Diseases 0.000 description 1
- 210000004709 eyebrow Anatomy 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 206010037844 rash Diseases 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Absorbent Articles And Supports Therefor (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は透液性の表面シート、吸収層およびバックシー
トよりなるおむつや生理用品などの体液吸収用の衛生材
料に関するものである。更に詳しくは、柔軟で表面毛羽
や毛羽脱落が少なく、肌触りの良好な表面シートを有す
る衛生材料に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to sanitary materials for absorbing body fluids, such as diapers and sanitary products, comprising a liquid-permeable top sheet, an absorbent layer, and a back sheet. More specifically, the present invention relates to a sanitary material having a surface sheet that is flexible, has little surface fluff or shedding, and is pleasant to the touch.
従来、透液性の表面シート（以下フェーシングという）
、吸収層およびバックシートよりなるおむつや生理用品
などの体液吸収用の衛生材料は表面の濡れ感が少ないこ
とより広く用いられている。Conventionally, liquid-permeable surface sheets (hereinafter referred to as facings)
Hygiene materials for absorbing body fluids, such as diapers and sanitary products, which are composed of an absorbent layer and a backsheet, are widely used because their surfaces do not feel wet.
フェーシングとしては各種不織布、特殊な穴明は加工し
たフィルムなどが用いられているが、なかでも不織布よ
りなるものは液体透過性が良いこと、柔軟であり着用時
の違和感が少ないこと、などより広く用いられている。Various types of non-woven fabrics and specially perforated films are used as facings, but non-woven fabrics are particularly popular because they have good liquid permeability, are flexible, and cause less discomfort when worn. It is used.
フェーシング用不織布トしては、バインダー接着不織布
、熱融着性繊維ウェブ単独または熱融着性繊維を他の繊
維素材と混綿もしくは積層したウェブを熱融着した熱接
着不織布、絡合不織布、長繊維よりなるスパンポンド不
織布などが用いられている。Examples of nonwoven fabrics for facings include binder-bonded nonwoven fabrics, heat-bonded nonwoven fabrics made by heat-sealing single heat-fusible fiber webs or webs in which heat-fusible fibers are blended or laminated with other fiber materials, entangled nonwoven fabrics, and long sheets. Spunpond nonwoven fabric made of fibers is used.
バインダー接着不織布は一般に風合いがかたく、また、
使用するバインダーの種類によってはかぶれなどの問題
を生ずる場合がある。絡合不織布は、７エーシングに使
用する低目付不織布では強度が一般に不十分であり、表
面毛羽と毛羽脱落も多い。Binder-adhesive nonwoven fabrics generally have a hard texture, and
Depending on the type of binder used, problems such as rash may occur. The strength of the entangled nonwoven fabric used in 7 Acing is generally insufficient, and the surface fluff and fluff often fall off.
熱接着不織布は一般に風合いは良好であるが表面毛羽と
毛羽脱落が多く、また、積層構造のものでは層間剥離を
起こし易い。スパンポンド不織布は毛羽の問題はないも
のの、嵩高性に劣り風合いがペーパーライクで衛生材料
の７エーシングとして用いた場合着用感に劣るものとな
る。Heat-adhesive nonwoven fabrics generally have a good feel, but have a lot of surface fuzz and fuzz shedding, and those with a laminated structure are prone to delamination. Although spunpond nonwoven fabrics do not have the problem of fuzz, they are inferior in bulk and have a paper-like texture, making them less comfortable to wear when used as 7-Acing for sanitary materials.
本発明は、上記の問題点を解決した、嵩高で柔軟にして
強度特性に優れ、表面毛羽と毛羽脱落の少ないフェーシ
ングを有する衛生材料を提供することにある。An object of the present invention is to provide a sanitary material which solves the above-mentioned problems and has a facing that is bulky, flexible, has excellent strength properties, and has little surface fluff and fluff shedding.
本発明は、表面シート、吸収層及びバックシートよりな
る衛生材料において、該表面シートが、高融点繊維また
は軟化溶融しない繊維を主とするウェブ（Ａ層）の片面
に、Ａ層形成繊維より軟化溶融しやすい熱可塑性繊維の
少なくとも一部の軟化または溶融による層（Ｂ層）が、
前記Ａ層と当該軟化または溶融およびＡ、Ｂ両層形成繊
維相互の非圧縮性流体流噴射による立体的絡合によって
一体に絡合された不織布であり、かつ該不織布のＡ層側
が吸収層側に面していることを特徴とする衛生材料であ
る。The present invention provides a sanitary material consisting of a top sheet, an absorbent layer, and a back sheet, in which the top sheet is attached to one side of a web (layer A) mainly composed of high melting point fibers or fibers that do not soften and melt, and which is softer than the fibers forming the layer A. A layer (B layer) formed by softening or melting at least a portion of easily meltable thermoplastic fibers,
A nonwoven fabric that is integrally entangled with the A layer by softening or melting and three-dimensional entanglement of the fibers forming both layers A and B by jetting an incompressible fluid stream, and the A layer side of the nonwoven fabric is the absorbent layer side. It is a hygienic material characterized by facing.
本発明は、上記のごと〈従来公知の表面シート、吸収層
及びバックシートを有する衛生材料において表面シート
（フェーシング）として特定の構成の不織布を用いるも
のである。従って、吸収層及びバックシートは従来公知
の全てのものを用いることができ、本発明の表面シート
との組み合わせにおいて特に限定されるものではない。The present invention uses a nonwoven fabric having a specific configuration as a facing sheet in a sanitary material having a conventionally known top sheet, an absorbent layer, and a back sheet, as described above. Therefore, all conventionally known absorbent layers and backsheets can be used, and are not particularly limited in combination with the topsheet of the present invention.
以下に本発明で７エーシングとして用いる積層不織布の
詳細について説明する。Details of the laminated nonwoven fabric used as 7Acing in the present invention will be explained below.
（イ）ウェブの調製
本発明の衛生材料のフェーシングに使用する不織布にお
いて軟化や溶融あるいは分解を受けずにウェブ層（Ａ層
）を構成する一方側のウェブ形成繊維は、軟化溶融しな
いレーヨンとか比較的高融点繊維であるポリエステルや
ポリプロピレンまたはこれらを主体とすることが好まし
い。そして、Ａ層は不織布中で嵩高性、柔軟性を担う役
割を持つので主体繊維とすることが好ましく目付５〜８
５ｇ／ｍ”に調製することが望ましい。一方、Ａ層に積
層する低軟化点、低融点熱可塑性繊維からなるウェブ層
（Ｂ層）としてはＡ層の繊維より軟化や溶融しやすい繊
維であってたとえばナイロン６繊維、ポリエチレン繊維
、ポリエチレンが鞘成分であるポリエチレンポリプロピ
レン複合芯鞘繊維、共重合ポリエステル繊維、未延伸ポ
リプロピレン繊維それぞれ単独またはこれらの混合物の
如くである。ここで、Ｂ層形成繊維に約ｌＯ％程度まで
のＡ層形成繊維を混入しても差し支えない。そして、Ｂ
層はＡ層に対しては補助層であるので目付は４〜１５ｇ
／ｍ”でよい。こめように、本発明のウェブの組み合わ
せは下記のような繊維の熱的特性を勘案し、その繊維特
性を加味し、目的とする不織布の性能に応じて適宜組み
合わせることができる。例えば親水性の高いフェーシン
グとする場合にはＡ層形成繊維としてレーヨンを用い、
疎水性の高いフェーシングとする場合にはＡ層形成繊維
としてポリエステルやポリプロピレンなどを用いＢ層形
成繊維により軟化点の低い繊維を組み合わせることがで
きる。(B) Preparation of web In the nonwoven fabric used for the facing of the sanitary material of the present invention, the web-forming fibers on one side of the web layer (layer A) that do not undergo softening, melting, or decomposition are compared to rayon, which does not soften and melt. It is preferable that polyester or polypropylene, which are high melting point fibers, or these materials be used as the main fiber. Since the A layer plays a role in providing bulk and flexibility in the nonwoven fabric, it is preferable to use the main fiber as the basis weight of 5 to 8.
5 g/m". On the other hand, the web layer (B layer) made of low softening point, low melting point thermoplastic fibers laminated on the A layer is a fiber that softens and melts more easily than the A layer fibers. For example, nylon 6 fiber, polyethylene fiber, polyethylene polypropylene composite core-sheath fiber whose sheath component is polyethylene, copolymerized polyester fiber, undrawn polypropylene fiber, each singly or in a mixture thereof. There is no problem even if up to about 10% of A-layer forming fibers are mixed in. And B
The layer is an auxiliary layer for layer A, so its basis weight is 4 to 15 g.
/m". In other words, the web combinations of the present invention can be appropriately combined according to the desired performance of the nonwoven fabric by taking into consideration the thermal properties of the fibers as described below, and taking into account the fiber properties. For example, when creating a highly hydrophilic facing, rayon is used as the A-layer forming fiber,
In the case of a highly hydrophobic facing, polyester, polypropylene, or the like can be used as the A-layer forming fibers, and a fiber with a low softening point can be used as the B-layer forming fibers.
このように、本発明におけるウェブ形成繊維は任意に選
択組み合わせされてよいが、繊維としては公知のすべて
もの（円形でも異形でもよい、中実でも中空でもよい、
繊度や油剤の有無も構わない、捲縮の有無も不問）を用
いることができるが、嵩高性の点からは捲縮のある繊維
が好ましい。In this way, the web-forming fibers in the present invention may be selected and combined as desired, but all known fibers can be used (circular or irregularly shaped, solid or hollow, etc.).
Fibers with or without crimps can be used regardless of their fineness, the presence or absence of an oil agent, and the presence or absence of crimps, but crimped fibers are preferable from the standpoint of bulkiness.
（ロ）ウェブの繊維絡合処理
前述の２層積層された積層ウェブに非圧縮性流体もっと
も典型的には水を噴射して層形成繊維相互を不織布断面
方向に絡合させる（絡ませる）に際しては、それによっ
て不織布に、繊維の実質的にない箇所いわゆる孔部分が
規則的に形成されても形成されなくてもよいが、大きさ
約１ｍｍ２以上の孔部分がないほうが、吸収性や旦吸液
した液体を再び表面に戻さないために望ましい。本発明
における繊維絡合処理条件は従来公知の噴射条件を特に
変える必要はなく、不織布の目付に応じて液体の噴射角
を変更すればよく、孔形成のためには噴射角を１５°以
上すなわち噴霧流とするのが効率的であり、孔を設けな
い場合は噴霧角を５°以下すなわち柱状流とすればよい
。このときの噴射圧力と噴射流体供給量はそれぞれたと
えばｌＯ〜５０ ｋ ｇ ／ ｃ ｍ ２および１〜３
ｃｃ／ｃｍ”を目安として噴射口の大きさや噴射口とウ
ェブ間の噴射距離を勘案して決めることができる。一般
に噴射口の大きさは１〜３ｍｍ、噴射距離は１〜１０ｃ
ｍである。本発明においては同一積層ウェブを２回以上
噴射処理することを妨げない。本発明においては、この
ような操作によって両層形成繊維相互及びＡ層形成繊維
相互を立体的に絡合させるので、そこにおいては前記孔
部分のを無は問わない。本発明のねらいはかかる流体に
よる繊維絡合処理だけによっては達成されない。という
のは、層間剥離は一応防止されても不織布強度や不織布
表面繊維毛羽については未だ解決されていない。そのＩ
；めに以下に述べるＢ層形成繊維の部分的軟化または溶
融処理が施されるのである。(b) Fiber entanglement treatment of the web: Injecting an incompressible fluid, most typically water, onto the above-mentioned two-layer laminated web to entangle (entangle) the layer-forming fibers with each other in the cross-sectional direction of the nonwoven fabric. As a result, pores, which are substantially free of fibers, may or may not be formed regularly in the nonwoven fabric, but it is better to have no pores with a size of approximately 1 mm2 or more, which improves absorbency and absorbency. Desirable to prevent liquid from returning to the surface. The fiber entanglement treatment conditions in the present invention do not require any particular change in the conventionally known jetting conditions, and the jetting angle of the liquid may be changed according to the basis weight of the nonwoven fabric, and in order to form pores, the jetting angle should be set to 15 degrees or more, i.e. It is efficient to form a spray flow, and when no holes are provided, the spray angle may be 5° or less, that is, a columnar flow. The injection pressure and injection fluid supply amount at this time are, for example, 10~50 kg/cm2 and 1~3, respectively.
cc/cm" as a guideline, and can be determined by taking into account the size of the nozzle and the spray distance between the nozzle and the web. Generally, the size of the nozzle is 1 to 3 mm, and the spray distance is 1 to 10 cm.
It is m. In the present invention, the same laminated web may be jetted two or more times. In the present invention, since the fibers forming both layers and the fibers forming the A layer are three-dimensionally entangled with each other by such an operation, the size of the hole portion does not matter. The aim of the present invention is not achieved solely by such a fluid-based fiber entanglement treatment. This is because, although delamination has been prevented to some extent, the strength of the nonwoven fabric and the fiber fuzz on the surface of the nonwoven fabric have not yet been solved. Part I
To this end, the B layer forming fibers are partially softened or melted as described below.
（ハ）Ｂ層の軟化溶融処理
前記の絡合処理を施された積層ウェブはついでＢ層形成
繊維の軟化または溶融処理を施される。ここで重要なこ
とは、この処理はあくまでもＢ層形成の主たる繊維を軟
化または溶融させることであって、決してＡ層形成の主
たる繊維を軟化または溶融してはならない。その理由は
、Ａ層はそのままの形で不織布としての嵩高性と柔軟性
を保持しなければならないからである。(c) Softening and Melting Treatment of B Layer The laminated web that has been subjected to the above-mentioned entanglement treatment is then subjected to softening or melting treatment of the B layer forming fibers. What is important here is that this treatment only softens or melts the main fibers forming layer B, and must never soften or melt the main fibers forming layer A. The reason for this is that layer A must maintain its bulkiness and flexibility as a nonwoven fabric.
このような処理によって、Ａ層はＢ層の大部分の繊維の
軟化または溶融によって繊維間接着の形を呈することに
なり、またＢ層内部でも繊維間接着を呈し、その結果、
不織布表面（Ｂ層側）の繊維毛羽は防止できるとともに
不織布全体の強度的性質が向上することとなる。本発明
の不織布において、とくに面積１ｍｍ”程度具、上の孔
のない不織布は孔のある不織布より強度的に劣るので、
かかる軟化溶融処理の効果は顕著である。なお、かかる
処理は公知のすべての熱処理方式が適用可能であって、
たとえば熱風乾燥機、テンター、熱カレンダー等任意で
ある。また熱処理に先行して、あるいは熱処理と同時に
水流処理不織布を乾燥することが必要である。かかる軟
化溶融処理に際しては、Ｂ層形成繊維をすべてポリマー
化してしまうことは避けなければならず、その一部はＡ
層形成繊維と絡合して残っていなけれＩＬ−ならないの
であって、かかる熱処理条件は以下の実施例に示すよう
に当業者がウェブの目付、ウェブの走行速度あるいは熱
処理方式等に応じて試行錯誤の範囲内で条件を選択する
ことができる。Through such treatment, layer A exhibits a form of inter-fiber adhesion by softening or melting most of the fibers of layer B, and also exhibits inter-fiber adhesion within layer B, resulting in:
Fiber fuzz on the surface of the nonwoven fabric (layer B side) can be prevented, and the strength properties of the nonwoven fabric as a whole are improved. In the nonwoven fabric of the present invention, in particular, a nonwoven fabric with an area of about 1 mm and no holes on the top is inferior in strength to a nonwoven fabric with holes.
The effect of such softening and melting treatment is remarkable. In addition, all known heat treatment methods can be applied to this treatment, and
For example, a hot air dryer, a tenter, a thermal calendar, etc. may be used. It is also necessary to dry the water-treated nonwoven fabric prior to or simultaneously with the heat treatment. During such softening and melting treatment, it is necessary to avoid converting all of the B layer-forming fibers into polymers, and some of them become A polymers.
IL- must remain entangled with the layer-forming fibers, and the heat treatment conditions can be determined by trial and error by those skilled in the art depending on the basis weight of the web, web running speed, heat treatment method, etc., as shown in the examples below. Conditions can be selected within the range.
以上のように、本発明は異種繊維ウェブ積層物の絡合処
理及びＢ層形成繊維のみの軟化溶融処理によって、目的
とする目付１５〜１００ ｇ ／ ｍ ”の表面繊維毛
羽なしにして眉間剥離なく強度穴にして嵩高柔軟な不織
布が得られるのである。As described above, the present invention achieves the target fabric weight of 15 to 100 g/m'' without surface fiber fuzz and without peeling between the eyebrows by entangling a laminate of different types of fiber webs and softening and melting only the fibers forming the B layer. A bulky and flexible nonwoven fabric with strong holes can be obtained.
以下に実施例及び比較例について本発明の構成と効果に
ついて説明するが、以下の実験結果の測定で用いている
不織布の柔軟性および毛羽量の測定はそれぞれ次の方法
によって求められたものである。The structure and effects of the present invention will be explained below with reference to Examples and Comparative Examples. The flexibility and fluff of the nonwoven fabric used in measuring the experimental results below were determined by the following methods. .
なお、ここにおける柔軟度（ｇ）の測定方法は次のとお
りである。２１．５ｃｍＸ ２１．５ｃｍの試料片を不
織布から３枚採取し、ＴＨＷＩＮＧ ＡＬＢＥＲＴ Ｉ
ＮＳＴＲＵＭＥＮＴ社製のハンドル・オ・メーター測定
器の試料台の上に試料片の縦方向がスロワ）（８ｍｍ間
隔）と直角になるように置く。次に、ベネトレーターの
ブレードを１０．７ｃｍ （試験幅の１７２）の位置で
下降させ、試験片を押圧したときのマイクロアンメータ
−の示す最高値（ｇ）を読み、その値を１００から差し
引き、これを柔軟度（ｇ）とし、試料数４個の平均数で
表す。The method for measuring the degree of flexibility (g) here is as follows. Three sample pieces of 21.5cm x 21.5cm were collected from the nonwoven fabric and THWING ALBERT I
Place the sample piece on the sample stand of a handle-o-meter measuring instrument manufactured by NSTRUMENT so that the vertical direction is perpendicular to the thrower (8 mm intervals). Next, lower the Venetrator blade at a position of 10.7 cm (172 of the test width), read the maximum value (g) indicated by the microammeter when pressing the test piece, and subtract that value from 100. This is called the degree of flexibility (g) and is expressed as the average number of four samples.
ここにおける繊維毛羽（本／１０ｃｍ）の測定は次のよ
うにして行った。まず、この原理は摩擦によって不織布
表面から除去される繊維の量を測定することにある。測
定しようとする不織布を３０ｃｍ（長さ方向）Ｘ１４ｃ
ｍ（幅方向）に切る。これを固定板の上に置き、固定金
具にてその両端釜しっかり固定する。この際、不織布は
たるんでいないことが必要である。一方、金属棒を用意
し、その表面にフェルトをきつく巻き付は不織布の表面
をこのフェルト巻き付は金属棒によりＩＯ往復滑らかに
すべらせる。このとき、金属棒の表面に巻き付けたフェ
ルトに付着した不織布の毛羽を注意深くビンセットにて
取り外し毛羽本数を数えるものであり、測定数でｎ＝５
の平均である。The fiber fluff (strands/10 cm) here was measured as follows. First, the principle consists in measuring the amount of fibers removed from the nonwoven surface by friction. The nonwoven fabric to be measured is 30cm (length direction) x 14cm.
Cut into m (width direction). Place this on the fixing plate and firmly fix the hook at both ends with the fixing metal fittings. At this time, it is necessary that the nonwoven fabric does not sag. On the other hand, a metal rod is prepared, and felt is tightly wound around the surface of the nonwoven fabric so that the metal rod allows the metal rod to smoothly slide back and forth on the surface of the nonwoven fabric. At this time, the fluff of the nonwoven fabric attached to the felt wrapped around the surface of the metal rod was carefully removed with a bottle set and the number of fluffs was counted, and the number of fluffs measured was n = 5.
is the average of
実施例１〜５および比較例１〜３
下記第１表に記載したとおりのウェブ積層物を、移動速
度５ｍ／分で移動しつつある多孔金属支持板上ｌこ載置
し、１０ｋｇ／ａｍ”で水流噴射した（ノズル孔径０−
１５ｍｍ、流体供給量１．１ｃｃ／ｃｍ２、ノズルとウ
ェブ間の距離５０ｍｍ）。これによって、２層形成繊維
相互の絡合が認められた。同表におけるウェブ構成繊維
の表示ＮＢＦは未延伸ポリエチレンプロピレン複合芯鞘
繊維、ＰＮＳは未延伸ポリプロピレン繊維、ＰＥＴはポ
リエステル繊維、Ｒはレーヨン、ＰＰはポリプロピレン
繊維の略称である。Examples 1 to 5 and Comparative Examples 1 to 3 A web laminate as described in Table 1 below was placed on a porous metal support plate moving at a moving speed of 5 m/min. (nozzle hole diameter 0-
15 mm, fluid supply rate 1.1 cc/cm2, distance between nozzle and web 50 mm). As a result, entanglement between the fibers forming the two layers was observed. The web constituent fibers in the same table are indicated by NBF, undrawn polyethylene propylene composite core-sheath fiber, PNS, undrawn polypropylene fiber, PET, polyester fiber, R, rayon, and PP, polypropylene fiber.
ついで、乾燥後の前記絡合不織布に平滑熱ロール（１３
５℃）またはエンボス熱ロール（１４０°Ｏ，０，５ｋ
ｇ／ｃｍ”）によって乾熱処理を施した。Then, after drying, the entangled nonwoven fabric was rolled with a smooth heat roll (13
5℃) or embossing heat roll (140℃, 0.5k
Dry heat treatment was carried out using the following method.
かくして得られた水流処理及び乾熱処理を受けた本発明
の構成を満足する不織布は強力、柔軟度及び毛羽の諸点
で、一方処理だけの不織布に比してバランスのとれたも
のであり、これらの不織布を生理用品の７エーシングに
使用し、着用評価したところ、本願発明のものは表面が
滑らかで柔軟で着用感に優れ、かつ使用後に毛羽の付着
もなかったが、比較例１〜２のものは着用感には問題が
なかったが使用後に脱落した繊維毛羽が付着しており不
快なものであった。また、比較例３のものは、毛羽の問
題はなかったが、風合いがかたく着用時にごわついた感
じであった。なお、同表における目付の単位はｇ ／
ｍ ” 、厚さは４枚積層時のｍｍ。The thus obtained nonwoven fabric that satisfies the constitution of the present invention, which has been subjected to water jet treatment and dry heat treatment, has a better balance in terms of strength, flexibility, and fluff than nonwoven fabrics that have undergone only one treatment. When the non-woven fabric was used for the 7-aging of sanitary napkins and evaluated for wear, the fabric of the present invention had a smooth surface, was flexible, and was comfortable to wear, and there was no fluff attached after use, but the fabrics of Comparative Examples 1 and 2 Although there was no problem with the feeling of wearing, the fiber fluff that fell off after use was attached and was uncomfortable. In addition, Comparative Example 3 had no problem with fuzz, but had a hard texture and felt stiff when worn. In addition, the unit of basis weight in the same table is g/
m”, thickness is mm when 4 sheets are laminated.
強力の単位はｋｇ／ ３０ｃｍ、柔軟度はｇ１毛羽数は
本／１０ｃｍである。The unit of strength is kg/30cm, and the flexibility is g1, and the number of fluff is strands/10cm.
（以下余白）
〔発明の効果〕
本発明の衛生材料は、フェーシングとして嵩高柔軟で強
度に優れ、表面の繊維毛羽とその脱落の少ない不織布を
用いているため着用感に優れるものである。(The following is a blank space) [Effects of the Invention] The sanitary material of the present invention is bulky, flexible, and has excellent strength as a facing, and has excellent wearing comfort because it uses a nonwoven fabric with less fiber fuzz on the surface and less shedding.
Claims (1)
において、該表面シートが、高融点繊維または軟化溶融
しない繊維を主とするウエブ（Ａ層）の片面に、Ａ層形
成繊維より軟化溶融しやすい熱可塑性繊維の少なくとも
一部の軟化または溶融による層（Ｂ層）が、前記Ａ層と
当該軟化または溶融およびＡ，Ｂ両層形成繊維相互の非
圧縮性流体流噴射による立体的絡合によって一体に絡合
された不織布であり、かつ該不織布のＡ層側が吸収層側
に面していることを特徴とする衛生材料。In a sanitary material consisting of a top sheet, an absorbent layer, and a back sheet, the top sheet coats one side of a web (A layer) mainly made of high-melting point fibers or fibers that do not soften and melt, with heat that softens and melts more easily than the A layer-forming fibers. A layer (B layer) formed by softening or melting at least a portion of the plastic fibers is integrated with the A layer by the softening or melting and three-dimensional entanglement of the fibers forming both layers A and B by mutual incompressible fluid jet jetting. A sanitary material characterized in that it is an entangled nonwoven fabric, and the A layer side of the nonwoven fabric faces the absorbent layer side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2216596A JPH0649049B2 (en) | 1990-08-16 | 1990-08-16 | Sanitary material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2216596A JPH0649049B2 (en) | 1990-08-16 | 1990-08-16 | Sanitary material |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58093476A Division JPS59223350A (en) | 1983-05-26 | 1983-05-26 | Nonwoven fabric and production thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03123552A true JPH03123552A (en) | 1991-05-27 |
| JPH0649049B2 JPH0649049B2 (en) | 1994-06-29 |
Family
ID=16690901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2216596A Expired - Lifetime JPH0649049B2 (en) | 1990-08-16 | 1990-08-16 | Sanitary material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0649049B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006104074A1 (en) * | 2005-03-29 | 2006-10-05 | Daio Paper Corporation | Absorbent article and surface sheet thereof |
| KR20170002376A (en) | 2014-05-07 | 2017-01-06 | 가부시키가이샤 와코르 | Foundation garment |
| US10026386B2 (en) | 2005-08-02 | 2018-07-17 | Kawai Musical Instruments Mfg. Co., Ltd. | Apparatus, method and computer program for memorizing timbres |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54102095A (en) * | 1978-01-27 | 1979-08-11 | Kao Corp | Absorptive article |
| JPS5648177A (en) * | 1979-09-28 | 1981-05-01 | Hitachi Ltd | Junction field effect semiconductor device and its preparation |
| JPS5713056U (en) * | 1980-06-27 | 1982-01-23 | ||
| JPS59223350A (en) * | 1983-05-26 | 1984-12-15 | 株式会社クラレ | Nonwoven fabric and production thereof |
-
1990
- 1990-08-16 JP JP2216596A patent/JPH0649049B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54102095A (en) * | 1978-01-27 | 1979-08-11 | Kao Corp | Absorptive article |
| JPS5648177A (en) * | 1979-09-28 | 1981-05-01 | Hitachi Ltd | Junction field effect semiconductor device and its preparation |
| JPS5713056U (en) * | 1980-06-27 | 1982-01-23 | ||
| JPS59223350A (en) * | 1983-05-26 | 1984-12-15 | 株式会社クラレ | Nonwoven fabric and production thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006104074A1 (en) * | 2005-03-29 | 2006-10-05 | Daio Paper Corporation | Absorbent article and surface sheet thereof |
| US8748692B2 (en) | 2005-03-29 | 2014-06-10 | Daio Paper Corporation | Absorbent article and surface sheet thereof |
| US10026386B2 (en) | 2005-08-02 | 2018-07-17 | Kawai Musical Instruments Mfg. Co., Ltd. | Apparatus, method and computer program for memorizing timbres |
| KR20170002376A (en) | 2014-05-07 | 2017-01-06 | 가부시키가이샤 와코르 | Foundation garment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0649049B2 (en) | 1994-06-29 |
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