JPS63255062A - Absorbable article - Google Patents
Absorbable articleInfo
- Publication number
- JPS63255062A JPS63255062A JP62087990A JP8799087A JPS63255062A JP S63255062 A JPS63255062 A JP S63255062A JP 62087990 A JP62087990 A JP 62087990A JP 8799087 A JP8799087 A JP 8799087A JP S63255062 A JPS63255062 A JP S63255062A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- absorbent
- liquid
- synthetic fiber
- fibers
- 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 34
- 239000002250 absorbent Substances 0.000 claims description 34
- 229920002994 synthetic fiber Polymers 0.000 claims description 28
- 239000012209 synthetic fiber Substances 0.000 claims description 28
- 239000000835 fiber Substances 0.000 claims description 16
- 230000002209 hydrophobic effect Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 230000002146 bilateral effect Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 description 23
- 238000010521 absorption reaction Methods 0.000 description 10
- 230000035699 permeability Effects 0.000 description 10
- 239000008280 blood Substances 0.000 description 9
- 210000004369 blood Anatomy 0.000 description 9
- 239000010410 layer Substances 0.000 description 8
- 230000002175 menstrual effect Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- -1 polyethylene Polymers 0.000 description 5
- 229920000742 Cotton Polymers 0.000 description 4
- 230000005906 menstruation Effects 0.000 description 4
- 206010012735 Diarrhoea Diseases 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- 210000001124 body fluid Anatomy 0.000 description 3
- 239000010839 body fluid Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 229920000297 Rayon Polymers 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 239000002964 rayon Substances 0.000 description 2
- 229920000247 superabsorbent polymer Polymers 0.000 description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000000741 diarrhetic effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000012085 test solution Substances 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
Landscapes
- Absorbent Articles And Supports Therefor (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
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、使い捨ておむつ等の吸収性
物品に関する。さらに詳しくは、体液、特に高粘性の経
血、下痢側等の高粘性体液に対する透過性に優れた合成
繊維紙を液透過性材料と吸収層との間に存在せしめた吸
収性物品に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to absorbent articles such as sanitary napkins and disposable diapers. More specifically, the present invention relates to an absorbent article in which a synthetic fiber paper having excellent permeability to body fluids, particularly highly viscous body fluids such as highly viscous menstrual blood and diarrhea, is present between a liquid permeable material and an absorbent layer.
従来の生理用ナプキン等における吸収性物品は一般に液
透過性の表面層、吸収層及び液不透過性の防漏層の３つ
に大きくわけることができる。Conventional absorbent articles such as sanitary napkins can generally be broadly divided into three types: a liquid-permeable surface layer, an absorbent layer, and a liquid-impermeable leak-proof layer.
以下生理用ナプキンを例にして説明する。This will be explained below using sanitary napkins as an example.
生理用ナプキンの吸収層として、綿状パルプ及び吸収紙
を用いたものが知られている。この場合に綿状パルプは
、吸収性、濡れ性が良いためスポット的に吸収しコスト
も安く、吸収紙はクレープ加工等で拡散性が良いため有
効的に吸収することから、綿状パルプを使用面側に、吸
収紙をその下に配するよう構成されている。BACKGROUND ART Sanitary napkins using cotton-like pulp and absorbent paper as absorbent layers are known. In this case, cotton-like pulp is used because it has good absorbency and wettability, so it can be absorbed spot-wise and is inexpensive, and absorbent paper has good dispersibility through crepe processing, so it absorbs effectively. It is configured such that absorbent paper is placed underneath it on the front side.
しかしながら綿状パルプは短繊維であるため製造工程上
、一旦吸収紙又は弱防水紙からなる受紙上に積繊してナ
プキンに構成することによリ、その受紙が使用面側に配
置されることになる。その結果、ナプキンとして使用す
る際、経血が受紙面で広がり、スポット吸収性に欠ける
ため受紙に僅かに１８水剤を添加するか又はパルプの叩
解度を上げ弱防水性をもたせることにより、液の広がり
を防いでいるがその効果は十分ではない。However, since cotton-like pulp is a short fiber, during the manufacturing process, it is first stacked on a receiving paper made of absorbent paper or weakly waterproof paper to form a napkin, and then the receiving paper is placed on the use side. It turns out. As a result, when used as a napkin, menstrual blood spreads on the paper receiving surface and lacks spot absorbency. Although it prevents the liquid from spreading, its effect is not sufficient.
また実公昭６１−１２７７２８号公報に記載されている
吸収性物扁においては、パルプに疎水性合成繊維を１０
〜７０重量％配合した合成繊維紙と吸収紙の間に綿状パ
ルプを配し、合成繊維紙側を対象液の吸液面とすること
により、吸収する対象液の広がりを防止し、対象液がス
ポット吸収されるようにしている。また８亥公幸Ｕにお
いては、疎水性合成繊維の繊度は０．５〜３デニールが
好ましいと記載されている。しかしパルプは吸収性が良
く液保持するためにパルプに液が存在することになり、
また疎水性繊維の繊度も３デニール以下であるために、
実際の月経においては子宮内粘膜、悪露等が含まれるよ
うな粘性の高い経血も排出される場合も多（、この様な
、高粘性液体に対しては上記の効果では不十分である。In addition, in the absorbent material described in Utility Model Publication No. 61-127728, 10% of hydrophobic synthetic fibers are added to the pulp.
By placing cotton-like pulp between synthetic fiber paper containing ~70% by weight and absorbent paper, and making the synthetic fiber paper side the absorbing surface for the target liquid, the target liquid to be absorbed is prevented from spreading and the target liquid is is absorbed in spots. Further, in 8 Koyuki U, it is stated that the fineness of the hydrophobic synthetic fiber is preferably 0.5 to 3 deniers. However, pulp has good absorbency and retains liquid, so liquid is present in the pulp.
In addition, since the fineness of the hydrophobic fiber is less than 3 deniers,
During actual menstruation, highly viscous menstrual blood that contains intrauterine mucous membranes, lochia, etc. is also often discharged (the above effects are not sufficient for such highly viscous fluids). .
また受紙面において月経時に排出される高粘性の経血及
び***物が透過する際に、繊維が密に構成されているた
め高粘性液体の透過性がほとんどなく、そのため孔の部
分に多量の高粘性液体が短時間のうちに流れ込み高粘性
液体が孔を埋めてしまうことで目詰まりを生じ、そのた
め吸収層である綿状パルプの吸収性を十分にいかせない
ことが大きな欠点である。In addition, when highly viscous menstrual blood and excrement discharged during menstruation pass through the paper receiving surface, the dense fiber structure has almost no permeability to high viscosity liquids, so a large amount of high A major drawback is that the viscous liquid flows in in a short period of time and the highly viscous liquid fills the pores, resulting in clogging, which prevents the absorbency of the cotton-like pulp, which is the absorbent layer, from being fully utilized.
本発明の目的は月経時に排出される高粘性の経血及び排
泄物の透過性が悪いために起こる受紙面の目詰まりをな
くし、スポット吸収で綿状パルプの吸収性、濡れ性を十
分に生かせる透過性の良い吸収性物品を得ることにある
。The purpose of the present invention is to eliminate clogging of the paper receiving surface caused by poor permeability of highly viscous menstrual blood and excrement discharged during menstruation, and to make full use of the absorbency and wettability of cotton-like pulp by spot absorption. The object of the present invention is to obtain an absorbent article with good permeability.
本発明者らは、上記のような従来の吸収性物品の受紙に
よる問題点を解決すべく鋭意研究の結果、通常の血液や
尿などの低粘性液体ばかりでなく月経時に排出される高
粘性の経血、下痢側などの高粘性液体に対する透過性及
びスポット吸収性に優れた吸収性物品を見出し、本発明
を完成するに至った。The inventors of the present invention have conducted intensive research to solve the above-mentioned problems with paper receiving in conventional absorbent articles. The present inventors have discovered an absorbent article with excellent permeability and spot absorbency for highly viscous liquids such as menstrual blood and diarrhea, and have completed the present invention.
即ち、本発明は、少なくとも綿状パルプ及び吸収紙から
なる吸収層の下面に液不透過性シートを配置し、この積
層体の上面を液透過性材料で被覆し一体化して成る吸収
性物品において、上面の液透過性材料と前記吸収層との
間に疎水性合成繊維１００重量％からなる合成繊維紙を
存在せしめたことを特徴とする吸収性物品を提供するも
のである。That is, the present invention provides an absorbent article in which a liquid-impermeable sheet is disposed on the lower surface of an absorbent layer made of at least cotton-like pulp and absorbent paper, and the upper surface of this laminate is covered and integrated with a liquid-permeable material. The present invention provides an absorbent article characterized in that a synthetic fiber paper made of 100% by weight of hydrophobic synthetic fibers is present between the liquid-permeable material on the upper surface and the absorbent layer.
本発明の吸収性物品は合成繊維紙と吸収紙の間に綿状パ
ルプが配され、合成繊維紙側を体液吸収面とすることで
透過性及びスボ７）性が良好となる。In the absorbent article of the present invention, cotton-like pulp is arranged between the synthetic fiber paper and the absorbent paper, and the synthetic fiber paper side is used as the body fluid absorbing surface, so that permeability and smearability are improved.
本発明に用いられる合成繊維紙を構成する合成繊維とし
ては、ポリエチレンやポリプロピレンなどのポリオレフ
ィン系繊維、ポリエチレンテレフタレートなどのポリエ
ステル繊維、ポリアミド繊維、ポリアクリロニトリル系
繊維等の疎水性繊維のうちの一種又は混合物を使用する
ことができる。合成繊維の繊度は３デニール以上が好ま
しく、３〜１０デニールがより好ましい。The synthetic fibers constituting the synthetic fiber paper used in the present invention include one or a mixture of polyolefin fibers such as polyethylene and polypropylene, polyester fibers such as polyethylene terephthalate, polyamide fibers, and hydrophobic fibers such as polyacrylonitrile fibers. can be used. The fineness of the synthetic fiber is preferably 3 deniers or more, more preferably 3 to 10 deniers.
繊度が３デニール未満では、繊維間空隙が小さいため月
経時に排出される高粘性の経血、下痢側等などの高粘性
液体に対する透過性が悪く、合成繊維紙で目詰まりとな
りそれが上面で拡散することによりスポット性に欠ける
ため好ましくない、また合成繊維の繊維長は１〜６０ｍ
ｍが好ましく、５〜３０鶴がより好ましい。合成繊維紙
の坪量は１０〜４０ｇ／ ｒｄが好ましく、１５〜２５
ｇ／ ｒｄがより好ましい。If the fineness is less than 3 denier, the inter-fiber voids are small, so it has poor permeability to highly viscous liquids such as highly viscous menstrual blood discharged during menstruation and diarrhea, which clogs with synthetic fiber paper and diffuses on the top surface. This is not preferred because it lacks spotting properties, and the fiber length of synthetic fibers is 1 to 60 m.
m is preferable, and 5 to 30 cranes is more preferable. The basis weight of the synthetic fiber paper is preferably 10 to 40 g/rd, and 15 to 25 g/rd.
g/rd is more preferred.
また本発明に用いられる合成繊維としてはバイラテラル
構造（熱収縮率が異なる繊維を組み合わせた構造）をも
たせ立体捲縮を有する繊維が好ましく、熱収縮後の繊度
が３デニール以上となることが好ましい。バイラテラル
構造をもたせ立体捲縮を有する繊維であっても熱収縮後
の繊度が３デニール未満であると上記のような効果が得
られない。Furthermore, the synthetic fibers used in the present invention are preferably fibers with a bilateral structure (a structure in which fibers with different heat shrinkage rates are combined) and three-dimensional crimp, and the fineness after heat shrinkage is preferably 3 deniers or more. . Even if the fiber has a bilateral structure and three-dimensional crimp, the above effects cannot be obtained if the fineness after heat shrinkage is less than 3 deniers.
以下、実施例により本発明を更に詳細に説明するが、本
発明はこれらの実施例に限定されるものではない。EXAMPLES Hereinafter, the present invention will be explained in more detail with reference to Examples, but the present invention is not limited to these Examples.
実施例１〜１２及び比較例１〜２
表１に示す各種の合成繊維を角型抄紙機を用いて抄紙後
、ドラム型ロータリードライヤーで１２０℃で１分間乾
燥して合成繊維紙を得た。得られた合成繊維紙の表面は
微細な凹凸を形成し、またバイラテラル構造をもたせ立
体捲縮を有する繊維は、熱処理後の繊度が３デニール以
上となっていた。Examples 1 to 12 and Comparative Examples 1 to 2 The various synthetic fibers shown in Table 1 were made into paper using a square paper machine, and then dried at 120° C. for 1 minute using a drum rotary dryer to obtain synthetic fiber paper. The surface of the resulting synthetic fiber paper had fine irregularities, and the fibers having a bilateral structure and three-dimensional crimp had a fineness of 3 deniers or more after heat treatment.
この合成繊維紙を用いて第１図に示す構成を有する生理
用ナプキンを作製した。即ち吸収紙（６） ０．２ｇ、
高吸収性ポリマー（５） ’ ０．３ｇ及び綿状パルプ
（４） １．５ｇからなる吸収層の上面及び側面を合成
繊維紙（７）で覆い、その上にレーヨンステープル綿（
２） ０．３ｇを積層し、ポリエチレン８μをラミネー
トした防水紙（３）により下面及び側面を覆い、これら
全体を不織布（１）で覆うことにより本発明品を得た。A sanitary napkin having the structure shown in FIG. 1 was produced using this synthetic fiber paper. That is, absorbent paper (6) 0.2g,
The top and side surfaces of the absorbent layer consisting of 0.3 g of superabsorbent polymer (5) and 1.5 g of cotton pulp (4) are covered with synthetic fiber paper (7), and rayon staple cotton (
2) The product of the present invention was obtained by laminating 0.3 g of polyethylene, covering the bottom and side surfaces with waterproof paper (3) laminated with 8 μm of polyethylene, and covering the entirety with the nonwoven fabric (1).
また合成繊維紙の代わりに弱防水紙（比較例−１）５及
び吸収紙（比較例−２）を使用した以外は上記と同様の
構成で生理用ナプキンを作製し比較品とした。In addition, sanitary napkins were prepared in the same manner as above, except that weakly waterproof paper (Comparative Example-1) 5 and absorbent paper (Comparative Example-2) were used instead of the synthetic fiber paper.
得られた生理用ナプキンについて、下記方法により戻り
量、吸収速度及び動的吸収量を評価した。結果を表１に
示す。The resulting sanitary napkin was evaluated for return amount, absorption rate, and dynamic absorption amount using the following methods. The results are shown in Table 1.
尚、試験液として次の２種類を使用した。The following two types of test liquids were used.
試験液Ａ・・・粘度１ ｃ、ｐの低粘度液体試験液Ｂ・
・・試験液Ａをカルボキシメチルセルロース（ＣＭＣ）
で増粘させた粘度３５０ｃ、ｐの高粘性液体
〈試験方法〉
（１） Ｗｅｔ Ｂａｃｋ試験
■ サンプルの重量を測定後５ｇ／ｃ４加圧下で試験液
を１０ｇ注入しすべて吸収するまでに要した時間を吸収
速度とする。繊維間隙を有する効果は液透過性が良くな
くてはならない。Test liquid A: Low viscosity liquid test liquid B with viscosity 1 c, p.
...Test solution A is carboxymethyl cellulose (CMC)
Highly viscous liquid with a viscosity of 350c and p <Test method> (1) Wet Back test■ After measuring the weight of the sample, 10g of the test liquid was injected under a pressure of 5g/c4, and the time required for it to be completely absorbed. Let be the absorption rate. The effect of having fiber gaps requires good liquid permeability.
■ サンプルに注入を始めて３分後のサンプルの重量（
−１）を測定し次に濾紙（Ｔｈ２８０Ｘ１９０ ｍ）
１０枚をのせ５０ ｇ ／ ｃシの加圧を３分間加えた
のちのサンプルの重！（Ｌ）を測定しＷ、と６の差を戻
り量とする。戻り量が少なければ吸収性能は良い。■ The weight of the sample 3 minutes after starting injection into the sample (
-1) and then filter paper (Th280 x 190 m)
The weight of the sample after 10 sheets were placed on it and a pressure of 50 g/c was applied for 3 minutes! Measure (L) and take the difference between W and 6 as the return amount. If the amount of return is small, the absorption performance is good.
（２）動的吸収量
第２図に示す様な人体モデル８を用いサンプル９を装着
状態にさせる。その後５０ｍｍ／ｆｆ１ｉｎの条件で歩
行運動を行う、その際試験液を間欠にチューブ１０から
注入し漏れるまでの最大の吸収量を見る。吸収容量が大
きければ実際の使用状態でも漏れにくくなる。(2) Dynamic Absorption Amount of human body model 8 as shown in FIG. 2 is used to attach sample 9. Thereafter, a walking exercise is performed under the condition of 50 mm/ff1 inch, during which time the test liquid is injected intermittently from the tube 10 and the maximum absorption amount until leakage is observed. If the absorption capacity is large, leakage will be less likely even under actual usage conditions.
本発明の吸収性物品は、通常の血液や尿などの低粘性液
体や、高粘性の経血、下痢便などの高粘性液体の透過性
に優れることにより吸収速度が速くなる。特に繊維間空
隙における目詰まりをな（し、良好な透過性を有するた
め合成繊維紙での広がりが少なくスポット性を有する。The absorbent article of the present invention has excellent permeability for low-viscosity liquids such as normal blood and urine, and high-viscosity liquids such as high-viscosity menstrual blood and diarrheal stool, so that the absorption rate is increased. In particular, it does not clog the interfiber spaces and has good permeability, so it spreads less on synthetic fiber paper and has spotting properties.
また綿状パルプの性能を阻害しないため吸収性をより上
げる特長を有する。It also has the advantage of increasing absorbency because it does not impede the performance of flocculent pulp.
第１図は本発明の吸収性物品の一実施例を示す断面図、
第２図は動的吸収量の測定に用いた人体モデルの斜視図
である。
１：液透過性材料（不織布）
２：レーヨンステープル綿
３：防水紙
４：綿状パルプ
５：高吸収性ポリマー
６：吸収紙
７：合成繊維紙
８：人体モデル
９：サンプル
１０：チューブFIG. 1 is a sectional view showing an embodiment of the absorbent article of the present invention;
FIG. 2 is a perspective view of a human body model used for measuring dynamic absorption. 1: Liquid permeable material (non-woven fabric) 2: Rayon staple cotton 3: Waterproof paper 4: Cotton pulp 5: Super absorbent polymer 6: Absorbent paper 7: Synthetic fiber paper 8: Human body model 9: Sample 10: Tube
Claims (2)
の下面に液不透過性シートを配置し、この積層体の上面
を液透過性材料で被覆し一体化して成る吸収性物品にお
いて、上面の液透過性材料と前記吸収層との間に疎水性
合成繊維１００重量％からなる合成繊維紙を存在せしめ
たことを特徴とする吸収性物品。1. A liquid-impermeable sheet is arranged on the lower surface of an absorbent layer made of at least cotton-like pulp and absorbent paper, and the upper surface of this laminate is covered with a liquid-permeable material. An absorbent article characterized in that a synthetic fiber paper made of 100% by weight of hydrophobic synthetic fibers is present between the material and the absorbent layer.
る繊維を組み合わせた構造）をもたせ立体捲縮を有する
繊度３デニール以上の疎水性合成繊維からなる特許請求
の範囲第１項記載の吸収性物品。2. 2. The absorbent article according to claim 1, wherein the synthetic fiber paper is made of hydrophobic synthetic fibers having a bilateral structure (a structure in which fibers with different heat shrinkage rates are combined) and having a three-dimensional crimp and a fineness of 3 deniers or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62087990A JPS63255062A (en) | 1987-04-10 | 1987-04-10 | Absorbable article |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62087990A JPS63255062A (en) | 1987-04-10 | 1987-04-10 | Absorbable article |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63255062A true JPS63255062A (en) | 1988-10-21 |
Family
ID=13930250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62087990A Pending JPS63255062A (en) | 1987-04-10 | 1987-04-10 | Absorbable article |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63255062A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009148322A (en) * | 2007-12-19 | 2009-07-09 | Kao Corp | Low-diffusivity permeable paper and absorbent article using it |
-
1987
- 1987-04-10 JP JP62087990A patent/JPS63255062A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009148322A (en) * | 2007-12-19 | 2009-07-09 | Kao Corp | Low-diffusivity permeable paper and absorbent article using it |
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