JPS63211375A - Production of permanent hydrophilic nonwoven fabric - Google Patents
Production of permanent hydrophilic nonwoven fabricInfo
- Publication number
- JPS63211375A JPS63211375A JP62043415A JP4341587A JPS63211375A JP S63211375 A JPS63211375 A JP S63211375A JP 62043415 A JP62043415 A JP 62043415A JP 4341587 A JP4341587 A JP 4341587A JP S63211375 A JPS63211375 A JP S63211375A
- Authority
- JP
- Japan
- Prior art keywords
- nonwoven fabric
- polyoxyethylene
- hydrophilicity
- present
- production
- 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 26
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- -1 polyoxyethylene Polymers 0.000 claims description 21
- 239000004094 surface-active agent Substances 0.000 claims description 15
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 12
- 238000003851 corona treatment Methods 0.000 claims description 9
- 229920001400 block copolymer Polymers 0.000 claims description 8
- 229920001451 polypropylene glycol Polymers 0.000 claims description 6
- 229920002994 synthetic fiber Polymers 0.000 claims description 5
- 239000012209 synthetic fiber Substances 0.000 claims description 5
- 150000005215 alkyl ethers Chemical class 0.000 claims description 4
- 238000000034 method Methods 0.000 description 22
- 229920001577 copolymer Polymers 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 5
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 4
- 239000005977 Ethylene Substances 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 229920000098 polyolefin Polymers 0.000 description 4
- 210000002700 urine Anatomy 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 3
- 208000028659 discharge Diseases 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 229920000259 polyoxyethylene lauryl ether Polymers 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- RNMDNPCBIKJCQP-UHFFFAOYSA-N 5-nonyl-7-oxabicyclo[4.1.0]hepta-1,3,5-trien-2-ol Chemical compound C(CCCCCCCC)C1=C2C(=C(C=C1)O)O2 RNMDNPCBIKJCQP-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 239000004716 Ethylene/acrylic acid copolymer Substances 0.000 description 1
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 229920001890 Novodur Polymers 0.000 description 1
- 229920000299 Nylon 12 Polymers 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 229920002319 Poly(methyl acrylate) Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 239000002280 amphoteric surfactant Substances 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007756 gravure coating Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 230000027939 micturition Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate 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
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920006380 polyphenylene oxide Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
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、永続親水性を有する合成繊維製不織布に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a synthetic fiber nonwoven fabric having permanent hydrophilic properties.
親水性処理を施した不織布は、従来例えば乳児用オムツ
のトップシートとして利用され、乳児のした尿を吸水部
へと受は渡す役目を果たしている。Nonwoven fabrics that have been subjected to hydrophilic treatment have conventionally been used, for example, as top sheets for infant diapers, and play the role of receiving urine from infants and transferring it to the water absorbing portion.
ところで、最近のオムツは性能が向上し、数回の尿を吸
収しうる能力を備えたものが多い。従って、オムツのト
ップシートも数回の尿に耐えるよう永続親水性を有して
いることが望まれる。By the way, the performance of recent diapers has improved, and many have the ability to absorb multiple doses of urine. Therefore, it is desirable that the top sheet of the diaper also have permanent hydrophilic properties so that it can withstand several urinations.
しかし、親水性処理のために現実に使用されている界面
活性剤は、一度尿がされてオムツに吸収されると尿とと
もに洗い流されて吸収され、その後の親水性能が落ちる
という問題がある。However, surfactants actually used for hydrophilic treatment have the problem that once urine is absorbed into the diaper, the surfactants are washed away with the urine and absorbed, resulting in a subsequent drop in hydrophilic performance.
本発明は、このような点に鑑みなされたもので、オムツ
のトップシートに限らず、一般的なものとして永続親水
性を有する不織布の製造方法を提供しようとするもので
ある。The present invention has been made in view of these points, and it is an object of the present invention to provide a method for manufacturing a nonwoven fabric having permanent hydrophilicity not only for diaper top sheets but also for general use.
本発明は、前記問題点を解決するため、次のような技術
的手段をとった。In order to solve the above problems, the present invention takes the following technical measures.
すなわち、本発明は■合成繊維製不織布にコロナ放電処
理を施し、■その後、ポリオキシエチレンアルキルエー
テルおよび／またはポリオキシエチレン・ポリオキシプ
ロピレンブロックコポリマーを実質的な主成分とする界
面活性剤を塗布することとしたものである。That is, the present invention involves (1) subjecting a synthetic fiber nonwoven fabric to a corona discharge treatment, and (2) coating a surfactant whose substantial main component is polyoxyethylene alkyl ether and/or polyoxyethylene/polyoxypropylene block copolymer. This is what we decided to do.
コロナ放電処理の条件として、ワット密度の大小が永続
親水性の良否にある程度影響を及ぼし、このワット密度
が大きい程、ポリオキシエチレンアルキルエーテルやポ
リオキシエチレン・ポリオキシプロピレンブロックコボ
リマーを塗布した後の永続親水性が良い。また、コロナ
放電の状態は電極の形状により左右されることもあり、
目付の小さな薄物の不織布には放電が拡散される広幅拡
散タイプの電極が好ましく、目付の大きい厚ものの不織
布には放電が集約される狭幅集中タイプの電極が好まし
い。As a condition for corona discharge treatment, the watt density has a certain degree of influence on the quality of permanent hydrophilicity. Good permanent hydrophilicity. Also, the state of corona discharge may be influenced by the shape of the electrode.
For thin non-woven fabrics with a small basis weight, a wide diffusion type electrode is preferable where the discharge is diffused, and for thick non-woven fabrics with a large basis weight, a narrow concentration type electrode is preferable where the discharge is concentrated.
塗布すべき界面活性剤としては、本発明で使用するもの
以外のものでは永続親水性を得ることはできない。また
、本発明で使用するものであづてもコロナ放電処理を行
っていない不織布・に使用すれば、やはり永続親水性を
得ることはできない。Permanent hydrophilicity cannot be obtained by using surfactants other than those used in the present invention. Furthermore, if the nonwoven fabric used in the present invention is not subjected to corona discharge treatment, permanent hydrophilicity cannot be obtained.
ポリオキシエチレンアルキルエーテルは、Ｒ−０（ＣＨ
、ＣＨ，０）ｎＨで示される非イオン界面活性剤であり
、通常Ｒは炭素原子数１０〜１８のアルキル基である。Polyoxyethylene alkyl ether is R-0(CH
, CH, 0)nH, where R is usually an alkyl group having 10 to 18 carbon atoms.
また、ポリオキシエチレン・ポリオキシプロピレンブロ
ックコボリマーは、ＨＯ（ＣＨｙｃ ＨｓＣ）ｍ（ＣＨ
ｓＣＨＣＨｔＯ）ｎ（ＣＨ２ＣＨｔｏ）もｍ’Ｈで示さ
れる非イオン界面活性剤であって、通常ｍ＋ｎ＋ｍ’
は２０〜８０、ｎは約１５〜５０である。また、本発明
においては、これらを実質的な主成分すなわち界面活性
剤としての６０ｗｔ％以上好ましくは８（ｈｔ％以上が
これらの成分からなっていれば、本発明の目的を達成す
ることができる。In addition, polyoxyethylene/polyoxypropylene block copolymer is HO(CHyc HsC)m(CH
sCHCHtO)n(CH2CHto) is also a nonionic surfactant represented by m'H, and is usually m+n+m'
is 20-80, and n is approximately 15-50. In addition, in the present invention, the object of the present invention can be achieved if these components constitute the substantial main component, that is, 60 wt% or more, preferably 8 (ht%) or more as a surfactant. .
このような界面活性剤としては、たとえば前者がエマン
ゲン■１０９Ｐ （花王社）、後者がベボール■Ｂ
−１８４やベボール■Ａ ０８５８（いずれも東邦化学
社）という商品名で入手可能である。Examples of such surfactants include, for example, the former is Emangen ■109P (Kao Corporation), and the latter is Bevol ■B.
-184 and Bevol ■A 0858 (both manufactured by Toho Chemical Co., Ltd.).
これらの界面活性剤の不織布への塗布量は、不織布の種
類や目付、要求される親水性レベルに応じて適宜変更さ
れるが、通常２〜ｌｈ／ｘ″の範囲で塗布されることが
多い。これらの界面活性剤を不織布に塗布する方法は、
スプレーガンで散布するスプレー法、凹凸のあるグラビ
ア版の凹凸面に界面活性剤を載せてヘラで界面活性剤を
かき落とし、その後不織布をグラビア版上に載せてゴム
ロールで押さえて、凹凸面凹部内の界面活性剤を不織布
に移行させるグラビアコート法、リバースコーターで界
面活性剤を塗布するリバースコーター法等によるが、他
の塗布方法を使用してもよいことは勿論である。The amount of these surfactants applied to the nonwoven fabric is changed as appropriate depending on the type and weight of the nonwoven fabric, and the required hydrophilic level, but it is usually applied in the range of 2 to lh/x''. .The method of applying these surfactants to nonwoven fabrics is as follows:
Spraying method uses a spray gun to apply a surfactant onto the uneven surface of a gravure plate, scrape off the surfactant with a spatula, then place a nonwoven fabric on the gravure plate and press it with a rubber roll to spread the surface into the concave areas of the uneven surface. A gravure coating method in which the surfactant is transferred to the nonwoven fabric, a reverse coater method in which the surfactant is applied using a reverse coater, etc. are used, but it goes without saying that other coating methods may be used.
また、本発明に適用しうる合成繊維製不織布の原料は、
繊維形成可能なものであれば結晶性、非品性を問わず、
低密度ポリエチレン、高密度ポリエチレン、ポリプロピ
レン、ポリ１−ブテン、ポリ４−メチル−１−ペンテン
、あるいはエチレン、プロピレン、ｌ−ブテン、４−メ
チル−１−ペンテン等のα−オレフィン同士のランダム
あるいはブロック共重合体等のポリオレフィン、エチレ
ン・アクリル酸共重合体、エチレン・酢酸ビニル共重合
体、エチレン・ビニルアルコール共重合体、エチレン・
塩化ビニル共重合体等のエチレン・ビニル化合物共重合
体、ポリスチレン、アクリロニトリル・スチレン共重合
体、ＡＢＳ、メタクリル酸メチル・スチレン共重合体、
α−メチルスチレン・スチレン共重合体等のスチレン系
樹脂、ポリ塩化ビニル、ポリ塩化ビニリデン、塩化ビニ
ル・塩化ビニリデン共重合体、ポリアクリル酸メチル、
ポリメタクリル酸メチル等のポリビニル化合物、ナイロ
ン６、ナイロン６−６、ナイロン６−１０、ナイロン１
１、ナイロン１２等のポリアミド、ポリエチレンテレフ
タレート、ポリブチレンテレフタレート等の熱可塑性ポ
リエステル、ポリカーボネート、ポリフェニレンオキサ
イド等あるいはそれらの混合物等である。そして、これ
ら合成樹脂の内とりわけポリオレフィンが好適である。In addition, the raw materials for the synthetic fiber nonwoven fabric that can be applied to the present invention are:
As long as it can form fibers, regardless of crystallinity or non-quality,
Low density polyethylene, high density polyethylene, polypropylene, poly 1-butene, poly 4-methyl-1-pentene, or random or block combinations of α-olefins such as ethylene, propylene, 1-butene, 4-methyl-1-pentene, etc. Polyolefins such as copolymers, ethylene/acrylic acid copolymers, ethylene/vinyl acetate copolymers, ethylene/vinyl alcohol copolymers, ethylene/vinyl alcohol copolymers, etc.
Ethylene/vinyl compound copolymers such as vinyl chloride copolymers, polystyrene, acrylonitrile/styrene copolymers, ABS, methyl methacrylate/styrene copolymers,
Styrenic resins such as α-methylstyrene/styrene copolymer, polyvinyl chloride, polyvinylidene chloride, vinyl chloride/vinylidene chloride copolymer, polymethyl acrylate,
Polyvinyl compounds such as polymethyl methacrylate, nylon 6, nylon 6-6, nylon 6-10, nylon 1
1, polyamides such as nylon 12, thermoplastic polyesters such as polyethylene terephthalate and polybutylene terephthalate, polycarbonates, polyphenylene oxides, and mixtures thereof. Of these synthetic resins, polyolefins are particularly preferred.
また、ポリオレフィンを使用する場合には、必要に応じ
て全部または一部がマレイン酸や無水マレイン酸等の不
飽和カルボン酸類でグラフト変性された変性物を含んで
いてもよい。Furthermore, when polyolefin is used, it may contain a modified product in which all or part of the polyolefin is graft-modified with unsaturated carboxylic acids such as maleic acid or maleic anhydride, if necessary.
これら原料を使用した不織布の製造は従来より公知の製
造方法を利用できる。これは抄紙方法を利用した湿式法
と、そうでない乾式法とに大別され、乾式法はさらに接
着剤でフィラメントを結合する接着剤型、フィラメント
同士を機械的に絡ませて結合した機械結合型、紡糸した
フィラメントを静電気や空気流で移動補集面に集積する
紡糸型に分けられる。また、紡糸型の不織布製造方法と
してはいわゆるスプレイドファイバー法、スパンボンド
法、スプリットファイバー法、網状法等を例示できる。Conventionally known manufacturing methods can be used to manufacture nonwoven fabrics using these raw materials. This method is roughly divided into a wet method that uses a papermaking method, and a dry method that does not.The dry method is further divided into an adhesive method that binds filaments with adhesive, a mechanical bonding method that connects filaments by mechanically entangling them, and a dry method that uses papermaking methods. It can be divided into spinning types that collect spun filaments on a moving collection surface using static electricity or air currents. Further, examples of the spinning type nonwoven fabric manufacturing method include the so-called sprayed fiber method, spunbond method, split fiber method, and net method.
そして、これらいずれの製造方法も本発明の不織布を製
造する際に利用できる。Any of these manufacturing methods can be used when manufacturing the nonwoven fabric of the present invention.
また、本発明に使用する不織布の目付はオムツのトップ
シートとして使用するならとりわけ３０９／ｅ以下、さ
らに好ましくは１０９〜２５ｇ／３１”が良い。Further, the basis weight of the nonwoven fabric used in the present invention is preferably 309/e or less, more preferably 109 to 25 g/31'' when used as a top sheet of a diaper.
以下、本発明の実施例を比較例と比較しつつ説明する。 Examples of the present invention will be described below while comparing them with comparative examples.
尚、本実施例および比較例で使用した界面活性剤は次の
とおりである。Incidentally, the surfactants used in the present examples and comparative examples are as follows.
エマルゲン１０９Ｐ・・・ポリオキシエチレンラウリル
エーテル、ＨＬＢ１３．８ 花王社製ベポールＢ−１
８４・・・ポリオキシエチレン・ポリオキシブロビレン
ブロックコボリマー、ＥＯ付加量４０％東邦化学社製
ノナール２０８・・・ポリオキシエチレンノニルフェノ
ールエーテルＨＬ８１２．３ 東邦化学社製カチナー
ルＨＬ１００・・・第４級アンモニウム塩東邦化学社製
レボン１０５Ｌ・・・アミノ酸型両性界面活性剤 三洋
化成社製
ベボールＡ ０８５８・・・ポリオキシエチレン・ポリ
オキシブロビレンブロックコボリマー、ＥＯ付加量５０
％、東邦化学社製
〈実施例１〜５〉
原料としてポリプロピレンを用いた、目付の異なる複数
の不織布を用意し、春日電気株式会社製のコロナ放電処
理装置（型名：ＫＴＯ−６０型）を用いてワット密度８
３． ＯＷ／ｘ”／分の条件でコロナ放電処理を施し、
ポリオキシエチレンラウリルエーテルまたはポリオキシ
エチレン・ポリオキシプロピレンブロックコボリマーを
スプレー法で塗布自然乾燥後親水性の評価試験を行った
。Emulgen 109P...Polyoxyethylene lauryl ether, HLB13.8 Bepol B-1 manufactured by Kao Corporation
84... Polyoxyethylene/polyoxybrobylene block copolymer, EO addition amount 40% Nonal 208 manufactured by Toho Chemical Co., Ltd. Polyoxyethylene nonylphenol ether HL812.3 Catinal HL100 manufactured by Toho Chemical Co.... Quaternary grade Ammonium salt Revon 105L manufactured by Toho Chemical Co., Ltd. Amino acid type amphoteric surfactant Bebol A 0858 manufactured by Sanyo Chemical Co., Ltd. Polyoxyethylene/polyoxybrobylene block copolymer, EO addition amount 50
%, manufactured by Toho Chemical Co., Ltd. <Examples 1 to 5> A plurality of nonwoven fabrics with different basis weights using polypropylene as a raw material were prepared, and a corona discharge treatment device (model name: KTO-60 type) manufactured by Kasuga Electric Co., Ltd. was used. using watt density 8
3. Corona discharge treatment was performed under the conditions of OW/x”/min,
Polyoxyethylene lauryl ether or polyoxyethylene/polyoxypropylene block copolymer was applied by a spray method, and after air drying, a hydrophilicity evaluation test was conducted.
親水性の評価方法は後述するＡ法、及びＢ法により行な
った。これらの評価試験は、前記の親水性処理を施した
未使用の不織布試片１６Ｘ ３０ｃｘについて行うとと
もに、同様の試片を１２０ｃｃの水に１時間浸漬した後
のものについて行い、初期親水性との比較の上で永続親
水性を評価した。Hydrophilicity was evaluated using Method A and Method B described below. These evaluation tests were conducted on unused nonwoven fabric specimens 16×30cx that had been subjected to the above-mentioned hydrophilic treatment, and on similar specimens that had been immersed in 120cc of water for 1 hour. Permanent hydrophilicity was evaluated based on comparison.
ここで、Ａ法は、市販の紙オムツのトップシートを除い
た吸収体上にサンプルを置き、４５°の伝記をつけて固
定配置し、０．１％ＮａＣＱ水溶液を約１０■の高さか
らピペットで１滴滴下させ、吸収体に吸収されるまでの
時間（秒）を測定する方法である。Here, in method A, the sample is placed on an absorbent material from which the top sheet of a commercially available disposable diaper has been removed, the sample is fixed at a 45° angle, and a 0.1% NaCQ aqueous solution is applied from a height of about 10 cm. This method involves dropping one drop with a pipette and measuring the time (seconds) it takes for it to be absorbed into the absorber.
時間が短い程親水性が良好であると判断する。It is judged that the shorter the time, the better the hydrophilicity.
尚、本実施例では最大６０秒まで測定し、６０秒を越え
ても吸収されないものは■と表示した。In this example, the measurement was carried out for up to 60 seconds, and those that were not absorbed even after 60 seconds were marked as ■.
また、Ｂ法は、１０枚重ねのトイレットペーパー上に試
片を載せ、その試片に０．１％ＮａＣＱ水溶液を１滴程
滴下し、滴下後吸収開始まで２秒以上要するものが１０
測定中いくつあるかを測定するもので、その数が少ない
ほど親水性が良いとするものである。In addition, in method B, a sample is placed on a stack of 10 sheets of toilet paper, and about 1 drop of 0.1% NaCQ aqueous solution is dropped onto the sample.
It measures the number of particles present during the measurement, and the smaller the number, the better the hydrophilicity.
以上の結果は第１表に示す。The above results are shown in Table 1.
〈比較例１〜１１〉
コロナ放電処理をしないで、ポリオキシエチレンラウリ
ルエーテルまたはポリオキシエチレン・ポリオキシプロ
ピレンブロックコボリマーの塗布のみをした不織布につ
いて永続親水性の評価試験を行うとともに、界面活性剤
として、第１表記載のものを使用した場合について永続
親水性の評価試験を行った。他の条件は前記実施例と同
一である。<Comparative Examples 1 to 11> Persistent hydrophilicity evaluation tests were conducted on nonwoven fabrics coated only with polyoxyethylene lauryl ether or polyoxyethylene/polyoxypropylene block copolymer without corona discharge treatment. An evaluation test for permanent hydrophilicity was conducted using the materials listed in Table 1. Other conditions were the same as in the previous example.
以上の結果は第１表に示す。The above results are shown in Table 1.
以下余白
く比較検討〉
第１表の実施例、比較例から明らかなように、コロナ放
電処理を施し、かつ、ポリオキシエチレンアルキルエー
テルまたはポリオキシエチレン・ポリオキシプロピレン
ブロックコボリマーを塗布した場合のみ永続親水性が見
られることがわかる。Comparative discussion in the margin below> As is clear from the examples and comparative examples in Table 1, only when corona discharge treatment is applied and polyoxyethylene alkyl ether or polyoxyethylene/polyoxypropylene block copolymer is applied. It can be seen that permanent hydrophilicity is observed.
本発明によれば、合成繊維製不織布にコロナ放電処理を
施した後、前記界面活性剤を塗布することにより、永続
親水性のある不織布を得ることができ、例えば、この不
織布をオムツのトップシートとして使用した場合、数回
の尿に対しても親水性を損なわないため、オムツの吸水
性能を長く維持できる。According to the present invention, a nonwoven fabric made of synthetic fibers is subjected to corona discharge treatment and then coated with the surfactant to obtain a nonwoven fabric with permanent hydrophilic properties.For example, this nonwoven fabric can be used as a top sheet of a diaper. When used as a diaper, the water absorbing performance of the diaper can be maintained for a long time because the diaper does not lose its hydrophilicity even after urinating several times.
Claims (1)
ポリオキシエチレンアルキルエーテルおよび／またはポ
リオキシエチレン、ポリオキシプロピレンブロックコポ
リマーを実質的な主成分とする界面活性剤を塗布するこ
とを特徴とする永続親水性不織布の製造方法。(1) After corona discharge treatment is applied to the synthetic fiber nonwoven fabric,
A method for producing a permanently hydrophilic nonwoven fabric, which comprises applying a surfactant containing polyoxyethylene alkyl ether and/or a polyoxyethylene, polyoxypropylene block copolymer as a substantial main component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62043415A JPS63211375A (en) | 1987-02-26 | 1987-02-26 | Production of permanent hydrophilic nonwoven fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62043415A JPS63211375A (en) | 1987-02-26 | 1987-02-26 | Production of permanent hydrophilic nonwoven fabric |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63211375A true JPS63211375A (en) | 1988-09-02 |
Family
ID=12663085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62043415A Pending JPS63211375A (en) | 1987-02-26 | 1987-02-26 | Production of permanent hydrophilic nonwoven fabric |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63211375A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5102738A (en) * | 1990-11-01 | 1992-04-07 | Kimberly-Clark Corporation | High hydrohead fibrous porous web with improved retentive absorption and acquision rate |
| US5112690A (en) * | 1990-11-01 | 1992-05-12 | Kimberly-Clark Corporation | Low hydrohead fibrous porous web with improved retentive wettability |
| JP2001058858A (en) * | 1999-08-20 | 2001-03-06 | Daiwabo Co Ltd | Polyolefin-based fiber for cement reinforcement and its production |
| JP2017533355A (en) * | 2014-11-04 | 2017-11-09 | ハネウェル・インターナショナル・インコーポレーテッドＨｏｎｅｙｗｅｌｌ Ｉｎｔｅｒｎａｔｉｏｎａｌ Ｉｎｃ． | Novel UHMWPE fiber and manufacturing method |
-
1987
- 1987-02-26 JP JP62043415A patent/JPS63211375A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5102738A (en) * | 1990-11-01 | 1992-04-07 | Kimberly-Clark Corporation | High hydrohead fibrous porous web with improved retentive absorption and acquision rate |
| US5112690A (en) * | 1990-11-01 | 1992-05-12 | Kimberly-Clark Corporation | Low hydrohead fibrous porous web with improved retentive wettability |
| JP2001058858A (en) * | 1999-08-20 | 2001-03-06 | Daiwabo Co Ltd | Polyolefin-based fiber for cement reinforcement and its production |
| JP2017533355A (en) * | 2014-11-04 | 2017-11-09 | ハネウェル・インターナショナル・インコーポレーテッドＨｏｎｅｙｗｅｌｌ Ｉｎｔｅｒｎａｔｉｏｎａｌ Ｉｎｃ． | Novel UHMWPE fiber and manufacturing method |
| US11066765B2 (en) | 2014-11-04 | 2021-07-20 | Honeywell International Inc. | UHMWPE fiber and method to produce |
| TWI752900B (en) * | 2014-11-04 | 2022-01-21 | 美商哈尼威爾國際公司 | Process for protecting treated fibers |
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