JPS63190058A - Water absorbable nonwoven fabric - Google Patents
Water absorbable nonwoven fabricInfo
- Publication number
- JPS63190058A JPS63190058A JP62018180A JP1818087A JPS63190058A JP S63190058 A JPS63190058 A JP S63190058A JP 62018180 A JP62018180 A JP 62018180A JP 1818087 A JP1818087 A JP 1818087A JP S63190058 A JPS63190058 A JP S63190058A
- Authority
- JP
- Japan
- Prior art keywords
- water
- nonwoven fabric
- water absorbable
- absorbable nonwoven
- absorbing
- 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
- 239000004745 nonwoven fabric Substances 0.000 title claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title description 13
- 239000000835 fiber Substances 0.000 claims description 10
- 239000006096 absorbing agent Substances 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 5
- 239000002861 polymer material Substances 0.000 claims description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 7
- 229920002451 polyvinyl alcohol Polymers 0.000 description 7
- 239000004743 Polypropylene Substances 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 5
- 229920001155 polypropylene Polymers 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000002844 melting Methods 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 230000008018 melting Effects 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 206010025476 Malabsorption Diseases 0.000 description 1
- 208000004155 Malabsorption Syndromes Diseases 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229920001477 hydrophilic polymer Polymers 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Landscapes
- Absorbent Articles And Supports Therefor (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Multicomponent Fibers (AREA)
- Nonwoven Fabrics (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】
利用分野 この発明は２度３度と表面が濡れたときも、
常に吸水性を良好に保持して、表面が乾燥状態を保つこ
とができる衛生用品の不織布であって、紙おむつ、生理
用品の表面を覆うものである。[Detailed Description of the Invention] Field of Application This invention can be applied even when the surface gets wet twice or thrice.
A nonwoven fabric for sanitary products that always maintains good water absorption and keeps the surface dry, and is used to cover the surfaces of disposable diapers and sanitary products.
従来技術 紙おむつ、生理用品においては、近来吸水性
の良好な材料が開発され、これを合成繊維の不織布をも
って覆って製品が作られる。このとき合成繊維は疎水性
であるので、水をはじく性質があるため、親水性の油剤
をもってその表面を処理して、表面の水分を内部の吸水
性材料に渡すことがなされている。しかしこのとき親水
性の油剤は水溶性であるので、一度水分に接すると、こ
れに溶【プて内部に吸い込まれて、繊維表面の親水性の
油剤の付着量は急に減少し、２回以降は吸い込みが急に
悪くなる。そこで表面の不織布にレーヨンのような吸水
性の繊維を含ませると、表面のされた状態が持続されて
芳しくない。Prior Art Recently, materials with good water absorbency have been developed for disposable diapers and sanitary products, and the products are made by covering these with non-woven fabrics made of synthetic fibers. At this time, synthetic fibers are hydrophobic and have the property of repelling water, so their surface is treated with a hydrophilic oil agent to transfer the moisture on the surface to the water-absorbing material inside. However, since the hydrophilic oil is water-soluble, once it comes into contact with water, it dissolves into the water and is sucked into the fiber, causing a sudden decrease in the amount of hydrophilic oil attached to the fiber surface. After that, suction suddenly gets worse. Therefore, if the nonwoven fabric on the surface contains water-absorbing fibers such as rayon, the surface will remain in an unsatisfactory state.
本発明の解決方法 本発明においては、ポリビニールア
ルコール（ＰＶＡ） 、或はごニルピリドン等の親水性
高分子材料を繊維の表面に含む複合繊維を使用すること
によって、水分の表面から内部への受は渡しを、長期に
わたって可能とする。Solution to the Invention In the present invention, by using a composite fiber containing a hydrophilic polymer material such as polyvinyl alcohol (PVA) or polypyridone on the surface of the fiber, the absorption of moisture from the surface to the inside is prevented. Enables delivery over a long period of time.
なおこの複合繊維は従来公知のポリエチレン（ＰＥ）ポ
リプロピレン（ＰＰ）による二層の熱溶融ｔａＩｆｆの
！！Ａ造に際して、外層をなす低融点のＰＰに一部ＰＶ
Ａ等を混合して紡糸することによって得られ、１ｔＩｆ
ｉの表面に部分的にＰＶＡが露出している。This composite fiber is made of two layers of heat-melting taIff made of conventionally known polyethylene (PE) and polypropylene (PP). ! When building A, some PV is added to the low melting point PP that forms the outer layer.
It is obtained by mixing and spinning A, etc., and 1tIf
PVA is partially exposed on the surface of i.
実施例 上記の芯をＰＰ、その外層をＰＰよりも低融点
のＰＥをもって覆った複合繊維で、外層にＰＶＡを含む
ものを、以下ＰＶＡ含有繊維とする。Examples The composite fiber described above, in which the core is made of PP and its outer layer is covered with PE having a lower melting point than PP, and whose outer layer contains PVA is hereinafter referred to as a PVA-containing fiber.
試験結果 （表１、表２）
試料 本発明の不織布は２層構造として、人体に接する
側を上層、吸水剤側を下層とする。Test Results (Tables 1 and 2) Sample The nonwoven fabric of the present invention has a two-layer structure, with the side in contact with the human body being the upper layer and the water absorbing agent side being the lower layer.
そして表１において、番号１は従来の複合ｍ雑を親水性
油剤処理なしで使用した場合、番号２は親水性油剤処理
を行なった場合、番号３．４はＰＶＡ含有１１１ｒＭを
含むものである。In Table 1, number 1 is when the conventional composite m miscellaneous is used without hydrophilic oil treatment, number 2 is when hydrophilic oil treatment is performed, and number 3.4 is the one containing 111 rM containing PVA.
試験方法 ■脱脂綿をたて１４．、よこ８ｃＷ１、重さ
約６ｇにつくり、これを吸水剤とし、評価しようとする
不織布でその表面を覆う。Test method ■Wrap absorbent cotton 14. , width 8cW1, weight approximately 6g, this was used as a water absorbing agent, and its surface was covered with the nonwoven fabric to be evaluated.
■ 試料を水平に保ち、試料面から約１ａの高さより、
垂直に水を１滴（約０，０５Ｉ１１）滴下し、０．５秒
以内にこの水滴が消失するものをＯとして、１０滴滴下
したうらの○の個数を記録する。これを初期吸収値とす
る。■ Keeping the sample horizontal, from a height of about 1a from the sample surface,
One drop of water (approximately 0.05I11) is dropped vertically, and the water droplet that disappears within 0.5 seconds is defined as O, and the number of circles on the back of the 10 drops is recorded. This is taken as the initial absorption value.
■ Ｈの試料をに対して、１ｏｄの水を滴下し、これが
試料を透過して、吸水剤に完全に吸収されるまでの時間
を記録する。 ｋｅｅｐ ｄｒｙ値（単位秒）として表
示する。(2) Drop 1 od of water onto the H sample and record the time it takes for the water to pass through the sample and be completely absorbed by the water absorbing agent. It is displayed as a keep dry value (unit: seconds).
■ さらに■の終了後１分経過した後、再度■を行ない
、再滴下試験として示す。(2) Furthermore, after one minute has passed after the completion of (2), (2) is performed again, and this is shown as a re-dropping test.
評価結果 試料番号１．２は初期吸収、再滴下試Ｍ（再
吸収）共不Ｑ。番号３．４はいずれも良・好。市販品Ａ
、Ｂはｋｅｅｐ ｄｒｙ、再吸収不良。Evaluation results Sample No. 1.2 has initial absorption, re-drop test M (re-absorption) and non-Q. Numbers 3 and 4 are both good and good. Commercial product A
, B is keep dry, malabsorption.
以上によりＰＶＡ含有繊維を上層として８０〜６０％、
下層として３０〜２０％、他をポリエステル、ポリエチ
レンとした二層構造の不織布が良好であることが判明し
た。As a result of the above, 80 to 60% of PVA-containing fibers as the upper layer,
It has been found that a two-layered nonwoven fabric in which the lower layer is 30 to 20% and the other layer is polyester or polyethylene is good.
Claims (1)
子材料を包含する熱融着性複合繊維を上層（人体に接触
する側）として８０〜６０％、下層（吸水剤層側）を３
０〜２０％としてなる吸水性不織布。In the nonwoven fabric that covers the water-absorbing agent layer of sanitary products, the upper layer (the side that comes into contact with the human body) is made up of heat-fusible composite fibers containing a water-absorbing polymer material at 80 to 60%, and the lower layer (the water-absorbing agent layer side) is made up of 3%.
A water-absorbing nonwoven fabric with a content of 0 to 20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62018180A JPS63190058A (en) | 1987-01-30 | 1987-01-30 | Water absorbable nonwoven fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62018180A JPS63190058A (en) | 1987-01-30 | 1987-01-30 | Water absorbable nonwoven fabric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63190058A true JPS63190058A (en) | 1988-08-05 |
Family
ID=11964416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62018180A Pending JPS63190058A (en) | 1987-01-30 | 1987-01-30 | Water absorbable nonwoven fabric |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63190058A (en) |
-
1987
- 1987-01-30 JP JP62018180A patent/JPS63190058A/en active Pending
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