JPH0628679B2 - Surface material for absorbent articles - Google Patents
Surface material for absorbent articlesInfo
- Publication number
- JPH0628679B2 JPH0628679B2 JP61181548A JP18154886A JPH0628679B2 JP H0628679 B2 JPH0628679 B2 JP H0628679B2 JP 61181548 A JP61181548 A JP 61181548A JP 18154886 A JP18154886 A JP 18154886A JP H0628679 B2 JPH0628679 B2 JP H0628679B2
- Authority
- JP
- Japan
- Prior art keywords
- surface material
- hydrophobic resin
- sorbitan monooleate
- fiber
- material according
- 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.)
- Expired - Lifetime
Links
Landscapes
- Absorbent Articles And Supports Therefor (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Nonwoven Fabrics (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は身体滲出液を吸収する吸収性物品の表面材に関
する。TECHNICAL FIELD The present invention relates to a surface material for absorbent articles that absorb body exudates.
紙オムツ、衛生ナプキン等の吸収性物品は尿血液等の身
体滲出液（以下単に体液ということがある）の透過が可
能な表面材、透過した滲出液を吸収保持する芯材および
滲出液の透過が不可能な裏面材で構成されている。表面
材は吸収性物品の身体と接触する面に用いられるもので
あり、吸収性物品が体液を吸収した状態においても肌に
乾いた接触感（以下ドライタツチ性ということがある）
を与える材質のものが好まれる。このような好みにこた
えるため米国特許第3695269号、同第4041951号、同第43
91869号等には疎水性繊維からなる不織布を吸収性物品
の表面材として使用することが提案されており、現在で
はこのような不織布が旧来の木綿の布あるいは紙等の親
水性の表面材に代つて主流となつている。疎水性繊維と
してはポリオレフイン繊維あるいはポリエステル繊維が
使用されており、不織布の体液透過性を良くする目的で
紡糸時に界面活性剤が塗布されている。Absorbent articles such as disposable diapers and sanitary napkins are surface materials that allow permeation of body exudates such as urine blood (hereinafter simply referred to as body fluids), core materials that absorb and retain permeated exudates, and permeation of exudates. It is composed of a back material that is impossible. The surface material is used for the surface of the absorbent article that comes into contact with the body, and even when the absorbent article absorbs body fluid, it feels dry on the skin (hereinafter sometimes referred to as dry touch).
Those of materials that give are preferred. U.S. Pat. Nos. 3,695,269, 4,041,951, and 43, in order to respond to such preferences.
It has been proposed in 91869, etc. to use a non-woven fabric made of hydrophobic fibers as a surface material for absorbent articles, and now such a non-woven fabric is used as a hydrophilic surface material for traditional cotton cloth or paper. It has become the mainstream. Polyolefin fibers or polyester fibers are used as the hydrophobic fibers, and a surfactant is applied during spinning for the purpose of improving the body fluid permeability of the nonwoven fabric.
表面に界面活性剤を塗布した疎水性繊維で作られた不織
布を表面材として使用した吸収性物品は一度体液を吸収
すると表面材はその界面活性剤が溶失されて体液透過性
が低下するため、芯材はまだ吸収能力を残していても二
度目以後は体液吸収速度が遅くなるという欠点があり、
紙オムツ等の繰り返し体液を吸収させるような吸収性物
品の表面材としては不適当であつた。本発明は繰り返し
体液を透過させても体液透過性が低下せず、かつ体液を
吸収した状態であつてもドライタツチ性を与える吸収性
物品の表面材を提供することを目的とする。Absorbent articles that use non-woven fabric made of hydrophobic fibers with a surface coated with a surface material as a surface material absorb the body fluid once, so that the surface material will dissolve the surface active agent and the body fluid permeability will decrease. , The core material has a drawback that the absorption rate of body fluid becomes slower after the second time even if the core material still retains the absorption capacity,
It was unsuitable as a surface material for absorbent articles that repeatedly absorb body fluids such as disposable diapers. An object of the present invention is to provide a surface material for an absorbent article, which does not deteriorate in body fluid permeability even when it repeatedly permeates body fluid, and which imparts dry touch property even when the body fluid is absorbed.
〔問題点を解決するための手段〕 本発明者らは従来品の上記問題点を解決するため鋭意検
討の結果、吸水率が１％以下の疎水性樹脂により表面の
５０％以上が形成されている繊維に仕上剤としてソルビ
タンモノオレエートとポリオキシエチレンソルビタンモ
ノオレエートとの混合比（重量）が１：１〜９：１であ
る混合物を0.1〜1.0％（重量）付着させた繊維を用いる
ことにより好適な吸収性物品の表面材が得られることを
知り本発明を完成するに到つた。[Means for Solving Problems] As a result of intensive studies for solving the above problems of conventional products, the present inventors have found that 50% or more of the surface is formed by a hydrophobic resin having a water absorption of 1% or less. As a finishing agent, a fiber having a mixture of sorbitan monooleate and polyoxyethylene sorbitan monooleate in a mixing ratio (weight) of 1: 1 to 9: 1 of 0.1 to 1.0% (weight) is used as a finishing agent. Thus, the inventors have found that a suitable surface material for absorbent articles can be obtained, and have completed the present invention.
本発明で用いる繊維は疎水性樹脂により表面の５０％以
上が形成されたものである。ここで疎水性樹脂とはポリ
エチレン、ポリプロピレン、エチレン酢酸ビニル共重合
体、ポリエステル等の樹脂であつて吸水率が１％以下の
ものを指す。繊維表面の５０％以上がこのような疎水性
樹脂で形成されている繊維からなる表面材は吸収性物品
が体液を吸収した状態であつても芯材からの体液の戻り
が小さく、ドライタツチ性を与える。The fibers used in the present invention are those in which 50% or more of the surface is formed of a hydrophobic resin. Here, the hydrophobic resin means a resin such as polyethylene, polypropylene, ethylene vinyl acetate copolymer, polyester and the like, which has a water absorption rate of 1% or less. A surface material composed of fibers in which 50% or more of the fiber surface is formed of such a hydrophobic resin has a small amount of bodily fluid returned from the core material even when the absorbent article has absorbed the bodily fluid, and has a dry touch property. give.
本発明で用いるソルビタンモノオレエートは次式(I)で
代表される各種ソルビタンモノエレートの混合物であ
る。The sorbitan monooleate used in the present invention is a mixture of various sorbitan monoelate represented by the following formula (I).
また、ポリオキシエチレンソルビタンモノオレエートは
次式(II)で次式(II)で代表される各種ソルビタンのポリ
オキシエチレン付加オレイン酸モノエステルの混合物で
ある 式中R1,R2,R3はヒドロキシ基またはポリオキシエチレン
基であり、少くとも１個はポリオキシエチレン基であ
る。ポリオキシエチレン基は重合度（オキシエチレン単
位の数）が１０〜５５のものが好ましい。これらソルビ
タンモノオレエートとポリオキシエチレンビタンモノオ
レエートは重量比で１：１〜９：１、好ましくは１：１
〜３：１の範囲の混合物として前記繊維にその重量に対
し0.1〜1.0％の量を付着させる。付着させる方法として
は該混合物を適当な濃度の水溶液とし、該繊維の紡糸時
にオイリングロールにより付着させる方法、あるいは紡
糸後の繊維を浸漬する方法等、公知の方法が利用でき
る。上記混合物の混合比率が１：１〜９：１の範囲外で
は体液の吸収時に溶失する量が大きく、繰り返し吸収性
が低下するので好ましくない。また繊維に対する付着量
が0.1％未満では繰り返し体液透過性が不充分となり、
1.0％を超すとドライタツチ性が不充分となり肌にベト
ツキ感を与えるのでいずれも好ましくない。 Polyoxyethylene sorbitan monooleate is a mixture of polyoxyethylene-added oleic acid monoesters of various sorbitans represented by the following formula (II). In the formula, R 1 , R 2 and R 3 are hydroxy groups or polyoxyethylene groups, and at least one is a polyoxyethylene group. The polyoxyethylene group preferably has a degree of polymerization (the number of oxyethylene units) of 10 to 55. These sorbitan monooleate and polyoxyethylene bitane monooleate are in a weight ratio of 1: 1 to 9: 1, preferably 1: 1.
The fibers are applied as a mixture in the range of ˜3: 1 in an amount of 0.1 to 1.0% by weight. As a method for adhering, a known method such as a method in which the mixture is made into an aqueous solution having an appropriate concentration and adhered with an oiling roll at the time of spinning the fiber, or a method in which the fiber after spinning is dipped can be used. If the mixing ratio of the above mixture is out of the range of 1: 1 to 9: 1, the amount of the body fluid to be dissolved upon absorption is large, and repeated absorbability is deteriorated, which is not preferable. Also, if the amount adhered to the fibers is less than 0.1%, the repeated body fluid permeability will be insufficient,
If it exceeds 1.0%, dry tackiness becomes insufficient and the skin feels sticky, which is not preferable.
ソルビタンモノオレエートとポリオキシエチレンソルビ
タンモノオレエートの混合物を付着させた上記繊維はカ
ード法ランダムウエブ法、乾式パルプ法等によりウエブ
とし、ニードルパンチ法等による機械的絡合、あるいは
熱ロール法、オーブン法等による熱接着等公知の方法で
不織布化して吸収性物品の表面材に用いる。The above-mentioned fiber to which a mixture of sorbitan monooleate and polyoxyethylene sorbitan monooleate is attached is made into a web by a card method random web method, a dry pulp method, a mechanical entanglement by a needle punch method, or a heat roll method, It is made into a non-woven fabric by a known method such as heat bonding by an oven method or the like and used as a surface material of an absorbent article.
実施例 実施例および比較例によつて本発明を更に具体的に説明
する。疎水性材料であるポリエチレン、ポリプロピレン
およびポリエステルならびに親水性材料である６−ナイ
ロンを用い第１表に示した各種の繊維を製造し、機械捲
縮をかけた後繊維長56mmに切断してスフとした。これら
のスフを４０インチのローラーカードを用いてウエブと
し、第１表に示した方法で不織布とし、繰り返し透水性
およびドライタツチ性を試験した。なお、仕上剤はサク
シヨンドライヤーまたは熱ロールによる不織布の場合は
紡糸時にオイリングロールで付着させ、ウオーターニー
ドル法による場合は不織布に含浸させて付着させた。EXAMPLES The present invention will be described more specifically with reference to Examples and Comparative Examples. Using the hydrophobic materials polyethylene, polypropylene and polyester and the hydrophilic material 6-nylon, various fibers shown in Table 1 were produced, subjected to mechanical crimping, and then cut into fiber lengths of 56 mm to form staple fibers. did. These staple fibers were made into a web using a 40-inch roller card, and made into a nonwoven fabric by the method shown in Table 1, and repeatedly tested for water permeability and dry tackiness. The finishing agent was attached by an oiling roll during spinning in the case of a nonwoven fabric by a suction dryer or a heat roll, and impregnated in the nonwoven fabric by a water needle method and attached.
透水性試験法：２０cm×２０cmの不織布試験片を同じ大
きさの紙の上に乗せ、試料片の中心部にその表面から
１cmの高さに設置したビユレツト先端より水１ｍを５
秒間で滴下させる。滴下終了後試料表面に水滴による光
の反射が消失するまでの時間（透水時間）を測定する。
次いでこの試料を４０℃で１時間乾燥させた後再度上記
の透水時間の測定をし、透水時間が３秒に達するまでこ
の操作を繰り返す。Permeability test method: A non-woven fabric test piece of 20 cm x 20 cm is placed on a paper of the same size, and 1 m of water is placed at the center of the test piece at a height of 1 cm from the surface to 1 m of water from the tip.
Allow to drip in seconds. After the completion of dropping, the time (water penetration time) until the reflection of light due to water droplets disappears on the sample surface is measured.
Then, this sample is dried at 40 ° C. for 1 hour, and then the water permeation time is measured again, and this operation is repeated until the water permeation time reaches 3 seconds.
ドライタツチ性：２０cm×２０cmの試験片を採取し、同
じ面積の紙の上に乗せ、中心部に水１ｍを５秒間で
滴下し、１分後に水を滴下した個所を手で軽く押え湿潤
感の有無を試験する。Dry touch property: A test piece of 20 cm x 20 cm was sampled, placed on a paper of the same area, 1 m of water was dropped in the center for 5 seconds, and 1 minute later, the place where the water was dropped was lightly pressed by hand to give a wet feeling. Test for presence.
試験結果を第１表に併せ示した。なお、第１表中の各種
略号は下記の通りである。The test results are also shown in Table 1. The various abbreviations in Table 1 are as follows.
PP：ポリプロピレン PE：ポリエチレン PET：ポリエステル 6-NyIon：６−ナイロン Ａ：ソルビタンモノオレエート Ｂ：ポリオキシエチレンソルビタンモノオレエート Ｃ：ラウリルホスフエートＫ塩＋ソルビタン牛脂酸エス
テル （１＋１混合物） Ｄ：ラウリルホスフエートＫ塩＋ポリオキシエチレンラ
ウリン酸エステル （１＋１混合物、重合度＝９） Ｅ：オクチルホスフエートＫ塩＋ラウリルホスフエート
Ｋ塩 （１＋１混合物） 〔発明の効果〕 第１表に示された結果からも明らかなように本発明の表
面材は繰り返し透水性およびドライタツチ性に優れてお
り、体液を繰り返し吸収させる必要のある夜間用の使い
すておしめ等の表面材として好適なものである。PP: Polypropylene PE: Polyethylene PET: Polyester 6-NyIon: 6-Nylon A: Sorbitan monooleate B: Polyoxyethylene sorbitan monooleate C: Lauryl phosphate K salt + sorbitan beef ester (1 + 1 mixture) D: Lauryl Phosphate K salt + polyoxyethylene lauric acid ester (1 + 1 mixture, degree of polymerization = 9) E: Octyl phosphate K salt + Lauryl phosphate K salt (1 + 1 mixture) [Effects of the Invention] As is clear from the results shown in Table 1, the surface material of the present invention is excellent in repeated water permeability and dry touch property, and is used for nighttime use requiring repeated absorption of body fluid. It is suitable as a surface material for diapers and the like.
Claims (5)
の５０％以上を形成されている繊維にソルビタンモノオ
レエートとポリオキシエチレンソルビタンモノオレエー
トとの混合比（重量）が１：１〜９：１である混合物を
0.1〜1.0％（重量）付着させた繊維を用いることを特徴
とする吸収性物品の表面材。1. A mixing ratio (weight) of sorbitan monooleate and polyoxyethylene sorbitan monooleate is 1: 1 for a fiber having 50% or more of its surface formed of a hydrophobic resin having a water absorption of 1% or less. 1-9: 1 mixture
A surface material for an absorbent article, characterized by using 0.1 to 1.0% (by weight) of adhered fibers.
の範囲第１項記載の表面材。2. The surface material according to claim 1, wherein the hydrophobic resin is polyethylene.
求の範囲第１項記載の表面材。3. The surface material according to claim 1, wherein the hydrophobic resin is polypropylene.
の範囲第１項記載の表面材。4. The surface material according to claim 1, wherein the hydrophobic resin is polyester.
の５０％以上を占められた繊維が２成分以上の疎水性樹
脂を並列型あるいは鞘芯型に配した複合繊維である特許
請求の範囲第１項記載の表面材。5. A fiber in which 50% or more of the surface is occupied by a hydrophobic resin having a water absorption rate of less than 1% is a composite fiber in which two or more components of the hydrophobic resin are arranged in a parallel type or a sheath-core type. The surface material according to item 1 of the above.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61181548A JPH0628679B2 (en) | 1986-08-01 | 1986-08-01 | Surface material for absorbent articles |
| US07/079,014 US4789588A (en) | 1986-08-01 | 1987-07-29 | Surface materials for absorptive products |
| EP19870111055 EP0255701B1 (en) | 1986-08-01 | 1987-07-30 | Surface materials for absorptive products |
| DE8787111055T DE3773447D1 (en) | 1986-08-01 | 1987-07-30 | SURFACE MATERIALS FOR SUCTIONABLE PRODUCTS. |
| DK400087A DK167958B1 (en) | 1986-08-01 | 1987-07-31 | SURFACE MATERIAL FOR ABSORBING PRODUCTS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61181548A JPH0628679B2 (en) | 1986-08-01 | 1986-08-01 | Surface material for absorbent articles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6338453A JPS6338453A (en) | 1988-02-19 |
| JPH0628679B2 true JPH0628679B2 (en) | 1994-04-20 |
Family
ID=16102710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61181548A Expired - Lifetime JPH0628679B2 (en) | 1986-08-01 | 1986-08-01 | Surface material for absorbent articles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0628679B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69716636T2 (en) | 1996-06-26 | 2003-06-12 | Chisso Corp | HYDROPHILE FIBERS, AND CLOTHING ITEMS AND FILTERS MADE THEREOF |
| JP6720083B2 (en) * | 2014-12-24 | 2020-07-08 | 松本油脂製薬株式会社 | Nonwoven fabric manufacturing treatment agent and its use |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5130638A (en) * | 1974-09-07 | 1976-03-16 | Seiko Kogyo Kk | JISHINYOGASUKYOKYUJIDOTEISHISOCHI |
| US4112153A (en) * | 1977-04-04 | 1978-09-05 | Johnson & Johnson | Method of controlling water repellency in non-woven fabric |
| JPS57158295A (en) * | 1981-03-25 | 1982-09-30 | Teijin Ltd | Spinning lubricant for synthetic fiber |
| JPS5860068A (en) * | 1981-10-01 | 1983-04-09 | 花王株式会社 | Surface modifier of nonwoven fabric for sanitary material |
-
1986
- 1986-08-01 JP JP61181548A patent/JPH0628679B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5130638A (en) * | 1974-09-07 | 1976-03-16 | Seiko Kogyo Kk | JISHINYOGASUKYOKYUJIDOTEISHISOCHI |
| US4112153A (en) * | 1977-04-04 | 1978-09-05 | Johnson & Johnson | Method of controlling water repellency in non-woven fabric |
| JPS57158295A (en) * | 1981-03-25 | 1982-09-30 | Teijin Ltd | Spinning lubricant for synthetic fiber |
| JPS5860068A (en) * | 1981-10-01 | 1983-04-09 | 花王株式会社 | Surface modifier of nonwoven fabric for sanitary material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6338453A (en) | 1988-02-19 |
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