JPH01195856A - Hygienic napkin - Google Patents
Hygienic napkinInfo
- Publication number
- JPH01195856A JPH01195856A JP63018988A JP1898888A JPH01195856A JP H01195856 A JPH01195856 A JP H01195856A JP 63018988 A JP63018988 A JP 63018988A JP 1898888 A JP1898888 A JP 1898888A JP H01195856 A JPH01195856 A JP H01195856A
- Authority
- JP
- Japan
- Prior art keywords
- absorbent layer
- layer
- width
- absorbent
- apparent density
- 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.)
- Pending
Links
- 230000002745 absorbent Effects 0.000 claims description 87
- 239000002250 absorbent Substances 0.000 claims description 87
- 210000001124 body fluid Anatomy 0.000 abstract description 8
- 239000010839 body fluid Substances 0.000 abstract description 8
- 239000010410 layer Substances 0.000 description 81
- 239000000835 fiber Substances 0.000 description 15
- 239000004745 nonwoven fabric Substances 0.000 description 12
- 238000010521 absorption reaction Methods 0.000 description 10
- -1 polypropylene Polymers 0.000 description 10
- 239000004698 Polyethylene Substances 0.000 description 8
- 229920000573 polyethylene Polymers 0.000 description 8
- 239000000463 material Substances 0.000 description 5
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920002522 Wood fibre Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000002025 wood fiber Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/495—Absorbent articles specially adapted to be worn around the waist, e.g. diapers with faecal cavity
- A61F2013/4958—Absorbent articles specially adapted to be worn around the waist, e.g. diapers with faecal cavity with a faecal management layer
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、生理用ナプキンに関する。[Detailed description of the invention] [Industrial application field] The present invention relates to sanitary napkins.
従来、生理用ナプキンは、一般に使用面全面に均一に吸
収体が入っているか、もしくは長手方向の両端まで吸収
体が入っていた。しかし、使用時には、被吸収液が、こ
れらナプキンの中央部に乗るように当接されて使用され
るものであるから、端から端まで同じ厚さの吸収体層と
しておくことは不必要である上、かえって使いにくい面
もある。Conventionally, sanitary napkins generally have an absorbent material evenly spread over the entire surface of the sanitary napkin, or have an absorbent material filled to both ends in the longitudinal direction. However, during use, the liquid to be absorbed is placed in contact with the center of these napkins, so it is unnecessary to have an absorbent layer of the same thickness from end to end. On the other hand, there are some aspects that make it difficult to use.
むしろ必要な部分のみ吸収体層を厚くする必要がある。Rather, it is necessary to increase the thickness of the absorber layer only in necessary areas.
かかる点を改良すべくいくつかの提案がなされている。Several proposals have been made to improve this point.
例えば、■特開昭５７−５０９２号公報においては、通
気性膜体上面の長手方向に、定形フラップ層が積層され
ているもの、■実公昭６０−９０８号公報においては、
吸収性シートよりも人体側に疎水性繊維集合配列体を設
けているものが開示されている。For example, ■Japanese Unexamined Patent Publication No. 57-5092, a regular flap layer is laminated in the longitudinal direction of the upper surface of the breathable membrane; ■ Japanese Utility Model Publication No. 60-908,
It has been disclosed that a hydrophobic fiber assembly is provided closer to the human body than the absorbent sheet.
しかし、上記公報■に記載のナプキンでは、人体の排液
部に相当する部分での体液の吸収性（以下スポット吸収
性と称する）が不充分であり、表面でのベトッキも多か
った。また、上記公報■に記載のナプキンでは、スポッ
ト吸収性はやや改善されてはいるのものの、全体として
同一の厚みであるため、着用者へのフィツト性が充分で
なかった。However, the napkin described in the above-mentioned Publication (2) had insufficient absorbency of body fluids (hereinafter referred to as spot absorbency) in the portion corresponding to the drainage area of the human body, and there was a lot of stickiness on the surface. In addition, although the napkin described in the above-mentioned Publication (2) has slightly improved spot absorbency, it has the same thickness as a whole, so the fit to the wearer is not sufficient.
そこで本発明の主目的は、スポット吸収性が良好であり
、表面での体液のもどり、ベトッキがなく、着用者の当
接部へのフィツト性の高い生理用ナプキンを提供するこ
とにある。SUMMARY OF THE INVENTION Accordingly, the main object of the present invention is to provide a sanitary napkin that has good spot absorbency, is free from body fluid return and stickiness on the surface, and has a high fit to the contact area of the wearer.
上記課題を解決するための本発明は、透水性シシートと
不透水性シートと、両シート間に介装される３つの吸収
層を備えた実質的に細長形状の生理用ナプキンにおいて
、表面がわから数えて第１゜第２．第３吸収層が下記の
関係を満足し、かつ第２吸収層の長手方向両側より外方
に延出する第３吸収層の長手方向両側部と第２吸収層の
長手方向両側部が前記不透水性裏面シートで被覆されて
いることを特徴とするものである。To solve the above problems, the present invention provides a substantially elongated sanitary napkin comprising a water-permeable sheet, a water-impermeable sheet, and three absorbent layers interposed between the two sheets, the surface of which is transparent. Counting 1st and 2nd. The third absorbent layer satisfies the following relationship, and both sides of the third absorbent layer in the longitudinal direction extending outward from both sides of the second absorbent layer and both sides of the second absorbent layer in the longitudinal direction extend outward from both sides of the second absorbent layer in the longitudinal direction. It is characterized by being covered with a water-permeable back sheet.
（１）第１吸収層の巾〈第２吸収層の巾〈第３吸収層の
巾
（ｉｉ）第１吸収層の見かけ密度〈第２吸収層の見かけ
密度く第３吸収層の見かけ密度
（ｉｉｉ ）第３吸収層の厚みく第２吸収層の厚み〔作
用〕
本発明では、吸収体を上記第１吸収層から第３吸収層へ
行くにしたがって巾広の構成としているため、ナプキン
は中高形状となり、着用者の排液部での吸液面積が少な
いから、スポット吸収性が向上し、第２．第３吸収層に
吸液されるに従って巾方向に効率よく体液を拡散させる
ことができる。(1) Width of the first absorption layer <Width of the second absorption layer <Width of the third absorption layer (ii) Apparent density of the first absorption layer <Apparent density of the second absorption layer × Apparent density of the third absorption layer ( iii) The thickness of the third absorbent layer increases and the thickness of the second absorbent layer [Function] In the present invention, since the absorbent body has a structure in which the width increases from the first absorbent layer to the third absorbent layer, the napkin It has a medium-height shape, and the liquid absorption area at the wearer's liquid drainage part is small, so spot absorption is improved. The body fluid can be efficiently diffused in the width direction as it is absorbed by the third absorbent layer.
また、見掛は密度を、着用者の排液部に近づくに従って
小さくしているため、着用者の当接部（第１吸収層）の
クツション性が高（、体液の逆もどりや、表面でのベト
ッキを少な（することができる。In addition, the apparent density decreases as it approaches the wearer's fluid drainage area, so the cushioning properties of the wearer's contact area (first absorbent layer) are high (i.e., there is no backflow of body fluids or You can make a small amount of Betokki.
さらに、第３吸収層が第２吸収層より薄く、かつ中広に
構成しているため、第２吸収層の長手方向両側部外方に
延在する部分の屈曲をしなやかにでき、全体として着用
者の当接部へのフィツト性を高めることができる。Furthermore, since the third absorbent layer is thinner than the second absorbent layer and has a wide middle structure, the portions extending outward on both longitudinal sides of the second absorbent layer can be bent flexibly, making it easy to wear as a whole. It is possible to improve the fit to the contact part of the user.
以下本発明をさらに具体的に説明する。 The present invention will be explained in more detail below.
本発明では、上述の通り、吸収体を第１、第２、第３の
３層構造とし、各吸収層は、次の（ｉ）〜（ｉｉｉ ）
の関係を満足する。In the present invention, as described above, the absorber has a three-layer structure of the first, second, and third layers, and each absorbent layer has the following (i) to (iii).
satisfy the relationship.
（ｉ）巾について；
第１吸収層く第２吸収層く第３吸収層
（ｉｉ ）見掛は密度について；
第１吸収層く第２吸収層く第３吸収層
（ｉｉｉ ）厚みについて；
第３吸収層く第２吸収層
上記第１吸収層の素材としては、疎水性繊維であり、か
つ熱溶融性を有する熱溶融性繊維（例えば、ポリプロピ
レン繊維のまわりをポリエチレンで被覆したものや、ポ
リエステル繊維のまわりをポリエチレンで被覆したもの
など）を主成分（８０％以上が好ましい）とし、その他
疎水性繊維（ポリエステル、ポリエチレン、ポリプロピ
レン等）を適宜配合したものを熱風スル一方式で、上記
熱溶融性繊維の１部溶融させて、嵩高性、クツション性
、繊維のタテ方向−（Ｚ軸方向）への配向性が増した不
織布に仕上げたものを使用できる。この不織布は、蛇腹
状にすると嵩高性、クツション性が増し、スポット吸収
性が増して逆もどりが減少するので好ましい。(i) Regarding the width; (ii) Regarding the apparent density of the first absorbent layer, the second absorbent layer, and the third absorbent layer (iii) Regarding the thickness of the first absorbent layer, the second absorbent layer, and the third absorbent layer (iii); 3 Absorbent Layer Second Absorbent Layer The first absorbent layer is made of hydrophobic fibers and heat-meltable fibers (for example, polypropylene fibers coated with polyethylene, polyester fibers, etc.). The main component (preferably 80% or more) is fibers coated with polyethylene, etc., and other hydrophobic fibers (polyester, polyethylene, polypropylene, etc.) are blended as appropriate. A nonwoven fabric can be used in which a portion of the fibers are melted to give a nonwoven fabric with increased bulk, cushioning properties, and orientation of the fibers in the vertical direction (Z-axis direction). This nonwoven fabric is preferably shaped into a bellows shape because it increases bulkiness and cushioning properties, increases spot absorbency, and reduces rebound.
上記熱溶融繊維の繊度としては、３デニ一ル〜１４デニ
ール等種々のものが使用できるが、嵩高でクツション性
があり、スポット吸収性が優れている点で１０デニール
以上が好ましい。The fineness of the above-mentioned heat-melting fiber can be various, such as 3 to 14 deniers, but is preferably 10 deniers or more because it is bulky, has cushioning properties, and has excellent spot absorbency.
また、熱溶融性繊維を主成分とするのは、嵩高でクツシ
ョン性という物性を維持するのに有効だからである。In addition, the reason why the main component is heat-fusible fiber is that it is effective in maintaining physical properties such as bulkiness and cushioning properties.
上記不織布の目付としては、３０〜９０ｇ／ｍ”が好適
であり、蛇腹状に仕上げる場合は、１５〜３０ｇ／ｍ”
のシートを蛇腹状に成型して６０〜１２０ｇ／ｍ”にす
るのがよい。この不織布は単一シートでもよいし、複数
枚のシートを重ね合わせてもよいが、厚みとしては、３
〜６寵で、１１は２〜５ｃｍがよい。不織布の見掛は密
度は０．００５〜０．０５ ｇ ／ ｃｒｎ′３がよい
。The weight of the nonwoven fabric is preferably 30 to 90 g/m", and when finished in a bellows shape, it is 15 to 30 g/m"
It is preferable to form a sheet into a bellows shape to have a weight of 60 to 120 g/m.
~6cm, 11 is good for 2~5cm. The apparent density of the nonwoven fabric is preferably 0.005 to 0.05 g/crn'3.
本発明における第２吸収層の巾は、第１吸収層より広く
、５〜７ａｎがよい。また、素材は、第１吸収層より高
密度の素材であれば特に限定しない。The width of the second absorbent layer in the present invention is wider than the first absorbent layer, and is preferably 5 to 7 an. Further, the material is not particularly limited as long as it has a higher density than the first absorbent layer.
第２吸収層の見掛は密度は０．０４〜０．０７ ｇ／ｃ
ｍ３が好ましく、その厚みは３〜５ｕが好ましい。さら
に第２吸収層は第１吸収層より親水性が高いことが望ま
しい。第２吸収層に吸収された体液を第２吸収層全体に
充分に拡散させるためである。この場合、第１吸収層と
第２吸収層との間にクレープ紙を挿入して第２吸収層で
の拡散を助長させるようにしてもよい。第２吸収層の素
材の例としては、木材繊維を綿状に積繊したものや、適
当に親水化した微粉砕のスポンジ等も使用できる。The apparent density of the second absorption layer is 0.04 to 0.07 g/c
m3 is preferable, and the thickness is preferably 3 to 5 u. Furthermore, it is desirable that the second absorbent layer has higher hydrophilicity than the first absorbent layer. This is to ensure that the body fluid absorbed by the second absorbent layer is sufficiently diffused throughout the second absorbent layer. In this case, crepe paper may be inserted between the first absorbent layer and the second absorbent layer to promote diffusion in the second absorbent layer. As examples of the material for the second absorbent layer, wood fibers stacked in a cotton-like manner, finely pulverized sponge suitably made hydrophilic, etc. can be used.
上記第３吸収層は、第２吸収層よりさらに巾広く、７〜
８ｃｒｎが好ましい。また、第２吸収層より高密度の素
材であって、かつ、第２吸収層より厚みが薄いものであ
れば特に限定はしないが、木材繊維をシート化し、クレ
ープを付した所謂クレープ紙を単一または積層したもの
を好適に用いることができる。第３吸収層の見掛は密度
としては、単一層または積層しプこ状態で、０．１０〜
０．１４ ｇ／ｃＩ１１３が好ましい。厚みは０．１〜
２鶴程度がよい。The third absorbent layer is wider than the second absorbent layer, and has a width of 7 to 7.
8crn is preferred. Also, there are no particular limitations as long as the material is denser than the second absorbent layer and thinner than the second absorbent layer. A single layer or a layered layer can be suitably used. The apparent density of the third absorbent layer is 0.10~
0.14 g/cI113 is preferred. Thickness is 0.1~
About 2 cranes is good.
また、第３吸収層での体液の吸収、拡散を一層効果的に
するため、第２吸収層より親水化することが好ましい。Further, in order to make absorption and diffusion of body fluids in the third absorbent layer more effective, it is preferable to make the third absorbent layer more hydrophilic than the second absorbent layer.
。 .
前記透水性シートとしては、湿式不織布または乾式不織
布が用いられ、これらの不織布は薄（平面的な構造を有
するように形成されている。As the water-permeable sheet, a wet-laid nonwoven fabric or a dry-laid nonwoven fabric is used, and these nonwoven fabrics are formed to have a thin (planar structure).
また、前記不透水性シートとしては、ポリエチレンフィ
ルム、ポリビニルアルコールフィルム、ポリエチレンラ
ミネート紙、撥水処理した防水紙、ポリエチレンラミネ
ート不織布等が使用できる。Further, as the water-impermeable sheet, polyethylene film, polyvinyl alcohol film, polyethylene laminate paper, water-repellent waterproof paper, polyethylene laminate nonwoven fabric, etc. can be used.
第１図〜第２図は、本発明に係る生理用ナプキンの第１
実施例を示すもので、第１図はその生理用ナプキンの断
面図、第２図は一部切欠平面図である。Figures 1 and 2 show a first diagram of a sanitary napkin according to the present invention.
An example is shown in which FIG. 1 is a sectional view of the sanitary napkin, and FIG. 2 is a partially cutaway plan view.
上記図面に示されるように、本発明に係る生理用ナプキ
ン１は、蛇腹状の第１吸収層２、第２吸収層３、第３吸
収層４と、第３吸収層の裏面側および第２吸収層の側面
を被覆する不透水性シート５と、上記各吸収層および不
透水性シート５を被覆する透水性シート６と、ナプキン
裏面がわの透水性シート６に粘着材７を介して剥離紙８
を設けたことを基本構成としている。前記各吸収層の巾
は、第１吸収層〈第２吸収層く第３吸収層とするもので
ある。なお、第１．第２吸収層間には、蛇腹固定用シー
ト９を設け、第１吸収層（蛇腹）を固定する。As shown in the above drawings, the sanitary napkin 1 according to the present invention includes a bellows-shaped first absorbent layer 2, a second absorbent layer 3, a third absorbent layer 4, a back side of the third absorbent layer and a second absorbent layer. A water-impermeable sheet 5 covering the side surfaces of the absorbent layer, a water-permeable sheet 6 covering each of the above-mentioned absorbent layers and the water-impermeable sheet 5, and a water-permeable sheet 6 on the back side of the napkin are peeled off via an adhesive 7. paper 8
The basic structure is that The width of each of the absorbent layers is such that the width of the first absorbent layer, the second absorbent layer and the third absorbent layer are the same. In addition, 1. A bellows fixing sheet 9 is provided between the second absorbent layers to fix the first absorbent layer (bellows).
本実施例においては、透水性シート６として目付２０ｇ
／ｍ２の不織布を用い、不透水性シート５としては、目
付２０ｇ／ｍ２の、不織布にポリエチレンフィルムをラ
ミネート加工したものを用いた。In this example, the water permeable sheet 6 has a basis weight of 20 g.
/m2, and the water-impermeable sheet 5 was a nonwoven fabric with a basis weight of 20 g/m2 laminated with a polyethylene film.
また、第１吸収層２としては、熱溶融繊維にＰＥＴを配
合したものを熱風スル一方式で、ポリエチレン繊維を一
部溶融して嵩高の不織布状に仕上げたものを蛇腹状に加
工し、目付２０ｇ／ｍ２の蛇腹固定用シート９で蛇腹形
状を固定した。上記不織布の目付は２０ｇ／ｍ２、見掛
は密度は０．０１３ｇ／ｍ’、巾は４ ｃｍとした。In addition, as the first absorbent layer 2, a mixture of heat-melting fibers and PET is processed into a bellows-like shape by partially melting polyethylene fibers using a hot air blowing method, and finishing it in the form of a bulky non-woven fabric. The bellows shape was fixed with a bellows fixing sheet 9 of 20 g/m2. The nonwoven fabric had a basis weight of 20 g/m2, an apparent density of 0.013 g/m', and a width of 4 cm.
次に、第２吸収層３としては、針葉樹の長繊維を綿状に
積繊し、目付２２０ｇ／ｍ”、厚み４ｍｍ、見掛は密度
０．０５５ ｇ ７ｃｍ３、巾５（至）のものを使用し
た。Next, as the second absorbent layer 3, the long fibers of coniferous trees were stacked into cotton-like fibers, with a basis weight of 220 g/m'', a thickness of 4 mm, an apparent density of 0.055 g 7 cm3, and a width of 5 (to). used.
さらに第３吸収層４としては、クレープ紙２０ｇ／ｍ”
を１枚使用し、厚み１５４μｍ、見掛は密度０．１２
ｇ ／ｌｏ”、巾７ ｃｍのものを使用した。゛以上の
ようなナプキンを使用したところ、スポット吸収性、表
面のベトッキ、着用者へのフィツト性が極めて良好であ
った。Furthermore, as the third absorbent layer 4, crepe paper 20g/m"
One sheet is used, thickness 154μm, apparent density 0.12
g/lo" and a width of 7 cm. When the above napkin was used, it had extremely good spot absorbency, sticky surface, and fit to the wearer.
次に、第３図は本発明に係る生理用ナプキンの第２実施
例の断面図、第４図はその一部切欠平面図である。この
第２実施例は、第１実施例における第１吸収層２を蛇腹
構造でなく、略フラットな形状にしたものであり、蛇腹
形状固定用のシートが少い点のみが第１実施例と異なる
ものである。Next, FIG. 3 is a sectional view of a second embodiment of the sanitary napkin according to the present invention, and FIG. 4 is a partially cutaway plan view thereof. This second embodiment differs from the first embodiment in that the first absorbent layer 2 of the first embodiment has a substantially flat shape instead of the bellows structure, and there are fewer sheets for fixing the bellows shape. They are different.
なお、第１吸収層の目付は５０ｇ／Ｃｆｆ１３、厚み４
１ｍ、見掛は密度は０．０１２５ ｇ ／ ｃｍ３のも
のを使用した。The basis weight of the first absorbent layer is 50 g/Cff13, and the thickness is 4.
1 m and an apparent density of 0.0125 g/cm3 was used.
次に、第５図および第６図は本発明に係る第３実施例を
示すものである。本実施例に係るナプキンは、第２実施
例に係るナプキンの長さ方向両側部の中央より、前がわ
に偏位した部分の一部を透水性シート６の上からヒート
シール１０することにより、透水性シート６、不透水性
シート５、第３吸収層をその部位で固着したものである
。このヒートシールＩＯにより、上記各吸収層がより一
層確実に固定され、その吸収性が高められた。Next, FIGS. 5 and 6 show a third embodiment of the present invention. The napkin according to the present embodiment is obtained by heat-sealing (10) a portion of the napkin according to the second embodiment from the center of both sides in the longitudinal direction toward the front from the top of the water-permeable sheet 6. , the water-permeable sheet 6, the water-impermeable sheet 5, and the third absorbent layer are fixed at that location. By this heat sealing IO, each of the above-mentioned absorbent layers was fixed even more reliably, and its absorbency was increased.
なお、本発明での吸収層の厚みの測定は、ＪＩＳ−Ｐ−
８１１８によるダイヤルシックネスゲージによる厚さ試
験方法を採用した。The thickness of the absorbent layer in the present invention is measured in accordance with JIS-P-
A thickness test method using a dial thickness gauge according to 8118 was adopted.
以上の通り、本発明によれば、スポット吸収性が良好で
あり、表面での体液のもどり、ベトッキがなく、着用者
の当接部へのフィツト性の高い生理用ナプキンを提供で
きる。As described above, according to the present invention, it is possible to provide a sanitary napkin that has good spot absorbency, is free of body fluid return and stickiness on the surface, and has a high fit to the contact area of the wearer.
第１図、第２図は第１実施例のそれぞれ断面図。
一部切欠平面図、第３図、第４図は第２実施例のそれぞ
れ断面図、一部切欠平面図、第５図、第６図は第３図実
施例のそれぞれ平面図、 Ｖｌ−Ｖｌ線断面図である。
１・・・生理用ナプキン、２・・・第１吸収層、３・・
・第２吸収層、４・・・第３吸収層、５・・・不透水性
シート、６・・・透水性シート、ｌＯ・・・ヒートシー
ル。FIGS. 1 and 2 are sectional views of the first embodiment, respectively. 3 and 4 are sectional views and partially cutaway plan views of the second embodiment, and FIGS. 5 and 6 are plan views of the embodiment shown in FIG. 3, respectively, Vl-Vl FIG. 1... Sanitary napkin, 2... First absorbent layer, 3...
- Second absorbent layer, 4... Third absorbent layer, 5... Water impermeable sheet, 6... Water permeable sheet, lO... Heat seal.
Claims (1)
装される３つの吸収層を備えた実質的に細長形状の生理
用ナプキンにおいて、表面がわから数えて第１、第２、
第３吸収層が下記の関係を満足し、かつ第２吸収層の長
手方向両側より外方に延出する第３吸収層の長手方向両
側部と第２吸収層の長手方向両側部が前記不透水性裏面
シートで被覆されていることを特徴とする生理用ナプキ
ン。 （ｉ）第１吸収層の巾＜第２吸収層の巾＜第３吸収層の
巾 （ｉｉ）第１吸収層の見かけ密度＜第２吸収層の見かけ
密度＜第３吸収層の見かけ密度 （ｉｉｉ）第３吸収層の厚み＜第２吸収層の厚み[Scope of Claims] A substantially elongated sanitary napkin comprising a water-permeable sheet, a water-impermeable sheet, and three absorbent layers interposed between the two sheets, the surface of which is counted as the first layer. , second,
The third absorbent layer satisfies the following relationship, and both sides of the third absorbent layer in the longitudinal direction extending outward from both sides of the second absorbent layer and both sides of the second absorbent layer in the longitudinal direction extend outward from both sides of the second absorbent layer in the longitudinal direction. A sanitary napkin characterized by being covered with a water-permeable back sheet. (i) Width of the first absorbent layer < Width of the second absorbent layer < Width of the third absorbent layer (ii) Apparent density of the first absorbent layer < Apparent density of the second absorbent layer < Apparent density of the third absorbent layer ( iii) Thickness of third absorbent layer <thickness of second absorbent layer
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63018988A JPH01195856A (en) | 1988-01-29 | 1988-01-29 | Hygienic napkin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63018988A JPH01195856A (en) | 1988-01-29 | 1988-01-29 | Hygienic napkin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01195856A true JPH01195856A (en) | 1989-08-07 |
Family
ID=11986963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63018988A Pending JPH01195856A (en) | 1988-01-29 | 1988-01-29 | Hygienic napkin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01195856A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004512143A (en) * | 2000-10-31 | 2004-04-22 | コロビン ゲーエムベーハー | Absorbent articles with a liquid dispersion layer and tailored liquid transfer under pressure |
| JP2007181725A (en) * | 2007-03-23 | 2007-07-19 | Uni Charm Corp | Absorbent article using surface structure of continuous filament |
| WO2012029964A1 (en) * | 2010-08-31 | 2012-03-08 | ユニ・チャーム株式会社 | Liner for incontinence |
| WO2013018346A1 (en) * | 2011-07-29 | 2013-02-07 | Unicharm Corporation | Bodily fluid absorbent matrix and method for manufacturing the same |
| JP2016097226A (en) * | 2014-11-26 | 2016-05-30 | 日本製紙クレシア株式会社 | Absorbent article |
| JP2019063371A (en) * | 2017-10-03 | 2019-04-25 | 花王株式会社 | Absorber manufacturing method and absorber manufacturing apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5556493A (en) * | 1978-10-23 | 1980-04-25 | Toshiba Corp | Chopper device |
| JPS6134203A (en) * | 1984-04-13 | 1986-02-18 | キンバリ− クラ−ク コ−ポレ−シヨン | Absorbing structure for absorbing body fluids |
| JPS6182749A (en) * | 1984-07-16 | 1986-04-26 | メ−ルンリユ−ケ・ア−ベ− | Fibrous absorber used in disposable article and its production |
-
1988
- 1988-01-29 JP JP63018988A patent/JPH01195856A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5556493A (en) * | 1978-10-23 | 1980-04-25 | Toshiba Corp | Chopper device |
| JPS6134203A (en) * | 1984-04-13 | 1986-02-18 | キンバリ− クラ−ク コ−ポレ−シヨン | Absorbing structure for absorbing body fluids |
| JPS6182749A (en) * | 1984-07-16 | 1986-04-26 | メ−ルンリユ−ケ・ア−ベ− | Fibrous absorber used in disposable article and its production |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004512143A (en) * | 2000-10-31 | 2004-04-22 | コロビン ゲーエムベーハー | Absorbent articles with a liquid dispersion layer and tailored liquid transfer under pressure |
| JP2007181725A (en) * | 2007-03-23 | 2007-07-19 | Uni Charm Corp | Absorbent article using surface structure of continuous filament |
| JP4520475B2 (en) * | 2007-03-23 | 2010-08-04 | ユニ・チャーム株式会社 | Absorbent article using continuous filament surface structure |
| WO2012029964A1 (en) * | 2010-08-31 | 2012-03-08 | ユニ・チャーム株式会社 | Liner for incontinence |
| CN103096853A (en) * | 2010-08-31 | 2013-05-08 | 尤妮佳股份有限公司 | Liner for incontinence |
| US9149395B2 (en) | 2010-08-31 | 2015-10-06 | Unicharm Corporation | Liner for incontinence |
| WO2013018346A1 (en) * | 2011-07-29 | 2013-02-07 | Unicharm Corporation | Bodily fluid absorbent matrix and method for manufacturing the same |
| JP2013027664A (en) * | 2011-07-29 | 2013-02-07 | Unicharm Corp | Body fluid absorptive core material and method of manufacturing the same |
| JP2016097226A (en) * | 2014-11-26 | 2016-05-30 | 日本製紙クレシア株式会社 | Absorbent article |
| JP2019063371A (en) * | 2017-10-03 | 2019-04-25 | 花王株式会社 | Absorber manufacturing method and absorber manufacturing apparatus |
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