JP2011084824A - Hydrophilizing agent for fiber and fiber containing the same - Google Patents
Hydrophilizing agent for fiber and fiber containing the same Download PDFInfo
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本発明は、初期親水性及び耐久親水性に優れた繊維用親水化剤に関するものであり、詳しくは、紙おむつ、生理用ナプキン、ウェットティッシュ、ワイパー、フィルター等の親水性の必要な熱可塑性合成繊維用の親水化剤に関する。更に詳しくは、親水化剤組成中にアルケニルフェノールアルキレンオキサイド付加物を含有してなる熱可塑性合成繊維用親水化剤に関するものである。 The present invention relates to a fiber hydrophilizing agent excellent in initial hydrophilicity and durable hydrophilicity, and more specifically, thermoplastic synthetic fibers that require hydrophilicity such as paper diapers, sanitary napkins, wet tissues, wipers, filters, and the like. It relates to a hydrophilizing agent. More specifically, the present invention relates to a hydrophilizing agent for thermoplastic synthetic fibers comprising an alkenylphenol alkylene oxide adduct in the hydrophilizing agent composition.
ポリオレフィン系やポリエステル系等の熱可塑性合成繊維は疎水性であるため、従来から親水性を付与する方法が開示されている。特に紙おむつや生理用ナプキン等の衛生材料の着用時には発汗、尿、体液等による不快感を回避するために、これら製品の表面材が濡れやすく、しかもその濡れやすさが短時間で発揮されることが重要であると考えられている。そのため、通常、これらの製品の表面材を構成している繊維、例えばポリオレフィン系繊維には、短時間で液を吸収することが要求される。また、紙おむつ等は、自分で排泄物を処理できない幼児、老人、病人等が着用するものであり、吸収容量の増大、濡れ防止性の向上により１回の着用で必ずしも１回の排泄物が処理されるとは限らず、これら衛生材料等の表面材には、耐久親水性が強く要求される。 Since thermoplastic synthetic fibers such as polyolefins and polyesters are hydrophobic, methods for imparting hydrophilicity have been disclosed. Especially when wearing sanitary materials such as paper diapers and sanitary napkins, in order to avoid discomfort due to sweating, urine, body fluids, etc., the surface material of these products is easily wetted, and the wettability is demonstrated in a short time Is considered important. For this reason, normally, fibers constituting the surface material of these products, for example, polyolefin fibers, are required to absorb the liquid in a short time. In addition, disposable diapers and the like are worn by infants, elderly people, sick people, etc. who cannot handle excrement by themselves. However, the surface materials such as sanitary materials are strongly required to have durable hydrophilicity.
従来、上記の表面材等の繊維に親水性を付与する方法としては下記（１）〜（３）に示すような方法が知られている。 Conventionally, methods as shown in the following (1) to (3) are known as methods for imparting hydrophilicity to the fibers such as the surface material.
（１）疎水性樹脂に親水化剤を練り込み、紡糸した繊維により親水性の繊維集合体を得る方法。この方法としては、例えば、ポリマーにポリエチレングリコールを混合し、溶融混練後、繊維を製造する方法（特許文献１）や、アルキルスルホン酸ナトリウム塩を混合し繊維化する方法（特許文献２）等がある。
（２）親水性低分子化合物を付着させる方法。この方法としては、ポリオレフィン系繊維と親和性の高い脂肪酸エステル型非イオン界面活性剤を付着させる方法（特許文献３）、ポリグリセリン脂肪酸エステルを用いる方法（特許文献４）等がある。
（３）プラズマ処理、コロナ放電処理等の物理的処理を施す方法。この方法としては、減圧下で酸素を高周波エネルギーで励起して処理し、表面をカルボニル化する方法（特許文献５）等がある。
(1) A method of kneading a hydrophilizing agent in a hydrophobic resin and obtaining a hydrophilic fiber assembly from the spun fibers. As this method, for example, a method in which polyethylene glycol is mixed into a polymer and melt-kneaded to produce a fiber (Patent Document 1), a method in which an alkylsulfonic acid sodium salt is mixed to form a fiber (Patent Document 2), etc. is there.
(2) A method of attaching a hydrophilic low molecular weight compound. As this method, there are a method of attaching a fatty acid ester type nonionic surfactant having high affinity with polyolefin fibers (Patent Document 3), a method of using a polyglycerol fatty acid ester (Patent Document 4), and the like.
(3) A method of performing physical treatment such as plasma treatment or corona discharge treatment. As this method, there is a method in which oxygen is excited and treated with high-frequency energy under reduced pressure to carbonylate the surface (Patent Document 5).
しかしながら、上記（１）の方法は、十分な親水性能を発揮するまで親水化剤を疎水性樹脂中に添加すると、樹脂との相溶性の問題で紡糸時に糸切れが発生する等で生産性が低下する。親水化剤が比較的早期に繊維表面にブリードアウトした場合でも、親水性が長期に持続せず耐久性の面で不十分といった問題がある。また、上記（２）の方法は簡便ではあるが、初期親水性には優れているが、期待する液透過性が不十分である。また、一旦水が通過すると乾燥された後は水の透過性が大幅に低下してドライタッチになるのに非常に時間がかかるなど耐久性の面で問題がある。上記（３）の方法は、改質により生じた極性基の経時変化により、経時的に親水性が劣化しやすく、しかも改質には特殊な装置を使用し、多量の熱や電気を要するため経済的ではない。 However, in the method (1), if a hydrophilizing agent is added to the hydrophobic resin until sufficient hydrophilic performance is exhibited, the productivity may be reduced due to a problem of compatibility with the resin, resulting in yarn breakage during spinning. descend. Even when the hydrophilizing agent bleeds out to the fiber surface relatively early, there is a problem that the hydrophilicity does not last for a long time and is insufficient in terms of durability. The method (2) is simple but has excellent initial hydrophilicity, but the expected liquid permeability is insufficient. In addition, once water has passed, after drying, there is a problem in terms of durability, for example, the water permeability is greatly reduced and it takes a very long time to become a dry touch. In the method (3), the hydrophilicity is likely to deteriorate over time due to the aging of the polar group generated by the modification, and a special apparatus is used for the modification, and a large amount of heat and electricity are required. Not economical.
本発明の課題は、紙おむつや生理用ナプキン等の衛生材料の表面材に用いた場合に液広がりが少なく吸収性能に優れ、更には湿潤時における耐久親水性に優れた繊維用親水化剤を提供することを目的とする。 An object of the present invention is to provide a fiber hydrophilizing agent that has excellent liquid absorption performance when it is used as a surface material for sanitary materials such as disposable diapers and sanitary napkins, and has excellent durability and hydrophilicity when wet. The purpose is to do.
本発明者らは上記課題を達成するために鋭意研究した結果、上記課題に最適な親水化剤を見いだし、本発明を完成させるに至った。すなわち本発明は、下記一般式（１）で表されるアルケニルフェノールの１種または２種以上にアルキレンオキサイドを付加した化合物を含有してなる繊維用親水化剤である。 As a result of intensive studies to achieve the above-mentioned problems, the present inventors have found a hydrophilizing agent that is optimal for the above-mentioned problems and have completed the present invention. That is, the present invention is a fiber hydrophilizing agent comprising a compound obtained by adding an alkylene oxide to one or more alkenylphenols represented by the following general formula (1).
本発明の好ましい態様として前記アルケニルフェノールの１種または２種以上がカルダノールである前記の繊維用親水化剤がある。 A preferred embodiment of the present invention is the above-described fiber hydrophilizing agent, wherein one or more of the alkenylphenols are cardanol.
前記一般式（１）において、Ｒは炭素数１３〜１７のアルケニル基を表す。Ｒの構造には特に限定はないが、不飽和結合数は１以上であればよく、直鎖構造であってもまた分岐構造であってもよい。 In the general formula (1), R represents an alkenyl group having 13 to 17 carbon atoms. The structure of R is not particularly limited, but the number of unsaturated bonds may be 1 or more, and may be a linear structure or a branched structure.
前記一般式（１）で表される化合物はどのような方法で製造されたものであってもよい。通常は、アルケニルフェノールの１種または２種以上に塩基性触媒の存在下アルキレンオキサイドを付加する方法で得ることが出来る。 The compound represented by the general formula (1) may be produced by any method. Usually, it can obtain by the method of adding an alkylene oxide to 1 type, or 2 or more types of an alkenylphenol in presence of a basic catalyst.
前記アルケニルフェノールには、工業的に製造された純品または複数種の混合物のほか、植物等の天然物から抽出・精製された純品または複数種の混合物として存在するものも含まれる。例えば上記カシューナッツ殻等から抽出され、カルダノールと総称される、３−［８（Ｚ），１１（Ｚ），１４−ペンタデカトリエニル］フェノール、３−［８（Ｚ），１１（Ｚ）−ペンタデカジエニル］フェノール、３−［８（Ｚ）−ペンタデセニル］フェノール、３−［１１（Ｚ）−ペンタデセニル］フェノールや、いちょうの種子および葉、ヌルデの葉等から抽出される３−［８（Ｚ），１１（Ｚ），１４（Ｚ）−ヘプタデカトリエニル］フェノール、３−［８（Ｚ），１１（Ｚ）−ヘプタデカジエニル］フェノール、３−［１２（Ｚ）−ヘプタデセニル］フェノール、３−［１０（Ｚ）−ヘプタデセニル］フェノール等が挙げられる。これらの中で、分解性が良好※であるカルダノールが好適に使用できる。
※出典：独立行政法人製品評価技術基盤機構（NITE）ホームページ
The alkenylphenol includes a pure product or a mixture of a plurality of types produced industrially, and a pure product or a mixture of a plurality of types extracted from a natural product such as a plant. For example, 3- [8 (Z), 11 (Z), 14-pentadecatrienyl] phenol, 3- [8 (Z), 11 (Z)-, which is extracted from the above cashew nut shell and the like and collectively called cardanol Pentadecadienyl] phenol, 3- [8 (Z) -pentadecenyl] phenol, 3- [11 (Z) -pentadecenyl] phenol, 3- [8] extracted from ginkgo seeds and leaves, Nurde leaves, etc. (Z), 11 (Z), 14 (Z) -Heptadecatrienyl] phenol, 3- [8 (Z), 11 (Z) -heptadecadienyl] phenol, 3- [12 (Z) -heptadecenyl ] Phenol, 3- [10 (Z) -heptadecenyl] phenol and the like. Of these, cardanol having good decomposability * can be preferably used.
* Source: National Institute of Technology and Evaluation (NITE) website
前記一般式（１）において、ＡＯはアルキレンオキシ基を表し、ｎは１〜２０の整数であり、アルキレンオキシ基はエチレンオキシ基、プロピレンオキシ基及びブチレンオキシ基が挙げられ、それぞれのアルキレンオキシ基の単独での付加、又は２種類以上のアルキレンオキシ基を付加する場合はブロック付加、又はランダム付加のいずれであってもよい。 In the general formula (1), AO represents an alkyleneoxy group, n is an integer of 1 to 20, and the alkyleneoxy group includes an ethyleneoxy group, a propyleneoxy group, and a butyleneoxy group. In addition, when adding 2 or more types of alkyleneoxy groups, either block addition or random addition may be sufficient.
以下、本発明の内容を具体的に説明する。
本発明の繊維用親水化剤は、熱可塑性合成繊維としてポリオレフィン繊維、フィブリル化ポリオレフィン繊維、低融点のポリエステル繊維、ナイロン繊維、塩ビ繊維等に使用できる。その中でもポリオレフィン繊維に用いることが好ましく、ポリプロピレン、ポリエチレン、ポリブデン−１、ポリメチルペンテン、エチレン−プロピレン共重合体、エチレン−プロピレン−ブテン−１共重合体、エチレン−ビニルアルコール共重合体、エチレン−酢酸ビニル共重合体、エチレン−アクリル酸共重合体、エチレン−アクリル酸メチル共重合体などから任意に一あるいは二以上選択して使用することができる。
The contents of the present invention will be specifically described below.
The hydrophilizing agent for fibers of the present invention can be used as polyolefin synthetic fibers, fibrillated polyolefin fibers, low melting point polyester fibers, nylon fibers, polyvinyl chloride fibers and the like as thermoplastic synthetic fibers. Among them, it is preferable to use for polyolefin fiber, and polypropylene, polyethylene, polybutene-1, polymethylpentene, ethylene-propylene copolymer, ethylene-propylene-butene-1 copolymer, ethylene-vinyl alcohol copolymer, ethylene- One or two or more can be arbitrarily selected from vinyl acetate copolymer, ethylene-acrylic acid copolymer, ethylene-methyl acrylate copolymer and the like.
また、本発明の親水化剤は、不織布、織編物などの布帛に使用することができる。不織布の形態としては、サーマルボンド不織布、ケミカルボンド不織布、スパンレース不織布、ニードルパンチ不織布などの主としてステープル繊維からなる不織布、スパンボンド不織布、メルトブロー不織布などの長繊維からなる不織布、湿式抄造法による湿式不織布、エアレイ不織布などの短繊維からなる不織布、あるいはこれらの積層体を用途に応じて決定することができる。 Moreover, the hydrophilizing agent of this invention can be used for fabrics, such as a nonwoven fabric and a woven / knitted fabric. Nonwoven fabrics include thermal bond nonwoven fabric, chemical bond nonwoven fabric, spunlace nonwoven fabric, nonwoven fabric mainly composed of staple fibers such as needle punched nonwoven fabric, nonwoven fabric composed of long fibers such as spunbond nonwoven fabric and melt blown nonwoven fabric, and wet nonwoven fabric obtained by wet papermaking. A nonwoven fabric made of short fibers such as an air laid nonwoven fabric or a laminate thereof can be determined according to the application.
本発明の親水化剤を付与された不織布は、紙おむつや生理用ナプキン等の衛生材料の吸収性を必要とする表面材、お尻拭き、ウェットティッシュ、化粧綿、ワイパー、フィルター等に用いることができる。 The nonwoven fabric provided with the hydrophilizing agent of the present invention can be used for surface materials that require the absorbency of sanitary materials such as paper diapers and sanitary napkins, ass wipes, wet tissues, cosmetic cotton, wipers, filters, etc. it can.
上記繊維に親水化剤を付着させる方法としては、エマルジョンや溶液にして塗布する方法か予めマスターバッチ等を作製し繊維製造時に樹脂に混練する方法でも良い。 As a method of attaching the hydrophilizing agent to the fiber, a method of applying it as an emulsion or a solution, or a method of preparing a master batch in advance and kneading the resin at the time of fiber production may be used.
本発明の親水化剤を塗布する場合は、水系のエマルジョン、あるいはストレートで繊維に付着させることができ、上記不織布を製造する際における紡糸及び／又は延伸工程において、通常の浸漬方法又はスプレー方式等により該親水化剤を塗布しても良い。エマルジョンの場合には水に０．０５〜５０重量％に希釈するが、必要に応じて乳化剤や可溶化剤を併用しても良い。ストレート給油の場合は低粘度の炭化水素化合物に０．０５〜５０重量％に希釈して付着させても良い。 When applying the hydrophilizing agent of the present invention, it can be attached to the fiber with an aqueous emulsion or straight, and in the spinning and / or stretching process in producing the nonwoven fabric, a normal dipping method or spray method, etc. The hydrophilizing agent may be applied. In the case of an emulsion, it is diluted to 0.05 to 50% by weight in water, but an emulsifier or a solubilizer may be used in combination as necessary. In the case of straight oiling, it may be adhered to a low-viscosity hydrocarbon compound diluted to 0.05 to 50% by weight.
塗布する場合の親水化剤の付着量は、ポリオレフィン系不織布に対して、０．０５〜５．０重量％であり、好ましくは０．１〜１．０重量％である。付着量が０．０５重量％未満であると、十分な親水性が得られず、付着量が５．０重量％を超えると、繊維をカード処理する時に巻付きが多くなり生産性が大幅に低下したり、得られる不織布が硬く、肌触りが悪くなり、吸収性物品の表面材として適当でなくなる。 The adhesion amount of the hydrophilizing agent when applied is 0.05 to 5.0% by weight, preferably 0.1 to 1.0% by weight, based on the polyolefin nonwoven fabric. If the amount of adhesion is less than 0.05% by weight, sufficient hydrophilicity cannot be obtained, and if the amount of adhesion exceeds 5.0% by weight, the amount of wrapping increases when the fiber is carded and the productivity is greatly increased. The resulting non-woven fabric is hard, the touch is poor, and is not suitable as a surface material for absorbent articles.
本発明の親水化剤を樹脂に混練する場合は、公知の混合装置を用いればよく、例えば、ヘンシェルミキサー、スーパーミキサーなどで混合し、公知の短軸または２軸押出機等で溶融混合して、予めマスターバッチにしておくと良い。このときポリオレフィン系樹脂には、必要に応じて、酸化防止剤、紫外線防止剤などの安定剤や酸化チタン、金属石けん、カーボンブラック、顔料、抗菌剤などの添加剤を混合させても良い。 When kneading the hydrophilizing agent of the present invention into a resin, a known mixing device may be used, for example, mixing with a Henschel mixer, a super mixer, etc., and melt mixing with a known short-shaft or twin-screw extruder or the like. It is better to make a master batch in advance. At this time, the polyolefin resin may be mixed with a stabilizer such as an antioxidant or an ultraviolet ray inhibitor and additives such as titanium oxide, metal soap, carbon black, a pigment, an antibacterial agent, and the like, if necessary.
混練する場合の親水化剤の添加量は、樹脂に対して０．１〜３０重量％、好ましくは１〜２０重量％混練する。混練する量が０．１重量％未満では十分な親水性が得られず、３０重量％を超えると繊維強度が低下し生産性が大幅に低下するので好ましくない。 The amount of the hydrophilizing agent added when kneading is 0.1 to 30% by weight, preferably 1 to 20% by weight, based on the resin. If the amount to be kneaded is less than 0.1% by weight, sufficient hydrophilicity cannot be obtained, and if it exceeds 30% by weight, the fiber strength is lowered and the productivity is greatly lowered, which is not preferable.
そして、親水化剤が混練されたポリオレフィン系樹脂は、公知の溶融紡糸機を用い、溶融紡糸される。紡糸温度は、親水化剤が実質的に変質しない温度で実施され、紡糸温度２００〜３００℃で樹脂を押し出し、所定の繊度の紡糸フィラメントを作製する。紡糸フィラメントは、必要に応じて延伸される。延伸は、延伸温度９０〜１３０℃、延伸倍率２倍以上で処理すると、繊維強度が向上するので好ましい。得られたフィラメントには、繊維処理剤を付着させてもよく、親水化剤を付着させると更に初期親水性が向上するので好ましい。 The polyolefin resin kneaded with the hydrophilizing agent is melt-spun using a known melt spinning machine. The spinning temperature is a temperature at which the hydrophilizing agent does not substantially change, and the resin is extruded at a spinning temperature of 200 to 300 ° C. to produce a spinning filament having a predetermined fineness. The spinning filament is drawn as necessary. Drawing is preferably performed at a drawing temperature of 90 to 130 ° C. and a draw ratio of 2 times or more because the fiber strength is improved. A fiber treating agent may be attached to the obtained filament, and it is preferable to attach a hydrophilizing agent since the initial hydrophilicity is further improved.
ポリオレフィン系繊維から不織布を製造するには、溶融紡糸・延伸・捲縮・熱処理・カットの各工程を経て、短繊維（ステープルファイバー）を得て、次いでローラーカード方式で不織布を得る方法、あるいは溶融紡糸で直接的に不織布を作製するスパンボンド法、メルトブロー法、糸条形成過程を経た糸を短くカットし、分散・ウエブ化・交絡工程を経て得る湿式成型法等を採用することが出来る。引張破断強力の高い不織布を得るにはスパンボンド法、目付けの小さい不織布を得るには、メルトブロー法、均質度の極めて高い不織布を得るには、湿式成型法が特に好ましい。 In order to produce a nonwoven fabric from polyolefin fibers, a method of obtaining staple fibers by melt spinning, drawing, crimping, heat treatment and cutting, and then obtaining a nonwoven fabric by a roller card method, or melting A spunbond method, a melt blow method for directly producing a nonwoven fabric by spinning, a wet molding method obtained by cutting a yarn that has undergone a yarn forming process into short pieces, and undergoing a dispersion, web forming, and entanglement step can be employed. The spunbond method is preferred for obtaining a nonwoven fabric with high tensile strength at break, the melt-blowing method is preferred for obtaining a nonwoven fabric with a small basis weight, and the wet molding method is particularly preferred for obtaining a nonwoven fabric with extremely high homogeneity.
本発明の親水化剤を繊維に付与することにより、繊維の初期親水性に優れるとともに、耐久親水性についても著しく改善することができる。従って本発明の親水化剤は、紙おむつや生理用品等に用いられるポリオレフィン系不織布等の親水化剤として好適に使用が可能である。 By imparting the hydrophilizing agent of the present invention to the fibers, the initial hydrophilicity of the fibers is excellent, and the durable hydrophilicity can be remarkably improved. Therefore, the hydrophilizing agent of the present invention can be suitably used as a hydrophilizing agent for polyolefin nonwoven fabrics used in paper diapers and sanitary products.
以下、本発明について実施例を挙げて具体的に説明するが、本発明はこれに限定されるものではない。 EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated concretely, this invention is not limited to this.
＜親水化剤の合成＞
実施例１
カルダノール（３−［８（Ｚ），１１（Ｚ），１４−ペンタデカトリエニル］フェノール ３１重量％、３−［８（Ｚ），１１（Ｚ）−ペンタデカジエニル］フェノール ２０重量％、３−［８（Ｚ）−ペンタデセニル］フェノール ４５重量％の混合物）商品名；Distilled Cashew Nut Shell Liquid（インド、SATYA CASHEW CHEMICALS社製。以下同様）を１０００ｍｌオートクレーブに３００ｇ及び水酸化カリウム０．８ｇを仕込み、系内を窒素置換した後１２０℃に昇温し、次いで系内を５０ｍｍＨｇの減圧にして１時間減圧脱水した。減圧脱水終了後、系内を窒素により常圧に戻し、１５０℃に昇温した後、この温度を保ちながらエチレンオキサイド１３２ｇをゲージ圧力０．２〜０．５ＭＰａの加圧下で２時間かけて反応系内に導入しカルダノールのエトキシ化反応を行った。エチレンオキサイド送入終了後、さらに同温度で１時間熟成を行い、冷却後酢酸０．８ｇで中和し、表１に記載の親水化剤Ａを得た。
<Synthesis of hydrophilizing agent>
Example 1
Cardanol (3- [8 (Z), 11 (Z), 14-pentadecatrienyl] phenol 31% by weight, 3- [8 (Z), 11 (Z) -pentadecadienyl] phenol 20% by weight, 3- [8 (Z) -pentadecenyl] phenol 45 wt% mixture) Trade name; Distilled Cashew Nut Shell Liquid (India, manufactured by SATYA CASHEW CHEMICALS, the same applies hereinafter) 300 g and 0.8 g potassium hydroxide in a 1000 ml autoclave The system was charged and the inside of the system was purged with nitrogen, then the temperature was raised to 120 ° C., and then the inside of the system was reduced to 50 mmHg and dehydrated under reduced pressure for 1 hour. After dehydration under reduced pressure, the system was returned to normal pressure with nitrogen, heated to 150 ° C., and 132 g of ethylene oxide was reacted for 2 hours under a pressure of 0.2 to 0.5 MPa while maintaining this temperature. It was introduced into the system to carry out ethoxylation of cardanol. After completion of the ethylene oxide feeding, the mixture was further aged at the same temperature for 1 hour, cooled and neutralized with 0.8 g of acetic acid to obtain a hydrophilizing agent A shown in Table 1.
実施例２
カルダノールを１０００ｍｌオートクレーブに３００ｇ及び水酸化カリウム１．０ｇを仕込み、系内を窒素置換した後１２０℃に昇温し、次いで系内を５０ｍｍＨｇの減圧にして１時間減圧脱水した。減圧脱水終了後、系内を窒素により常圧に戻し、１５０℃に昇温した後、この温度を保ちながらエチレンオキサイド１３２ｇをゲージ圧力０．２〜０．５ＭＰａの加圧下で２時間かけて反応系内に導入した。エチレンオキサイド送入終了後、さらに同温度で１時間熟成を行い、引き続きプロピレンオキサイド１１６ｇを温度１３０℃、０．２〜０．５ＭＰａの加圧下で２時間かけて反応系内に導入した。プロピレンオキサイドを送入終了後、さらに同温度で３時間熟成を行い、冷却後酢酸１．０ｇで中和し、表１に記載の親水化剤Ｂを得た。
Example 2
Cardanol was charged in a 1000 ml autoclave with 300 g and potassium hydroxide 1.0 g, and the inside of the system was purged with nitrogen. After dehydration under reduced pressure, the system was returned to normal pressure with nitrogen, heated to 150 ° C., and 132 g of ethylene oxide was reacted for 2 hours under a pressure of 0.2 to 0.5 MPa while maintaining this temperature. It was introduced into the system. After completion of the ethylene oxide feeding, aging was further performed at the same temperature for 1 hour, and 116 g of propylene oxide was subsequently introduced into the reaction system at a temperature of 130 ° C. and a pressure of 0.2 to 0.5 MPa over 2 hours. After the completion of feeding propylene oxide, aging was further performed at the same temperature for 3 hours, and after cooling, neutralized with 1.0 g of acetic acid to obtain a hydrophilizing agent B shown in Table 1.
以下同様の方法で表１に示す親水化剤Ｃ〜Ｆ（実施例３〜６）を得た。また、表１に記載の親水化剤Ｇ〜Ｊを比較例として用いた。 Thereafter, hydrophilizing agents C to F (Examples 3 to 6) shown in Table 1 were obtained in the same manner. Moreover, the hydrophilizing agents GJ shown in Table 1 were used as comparative examples.
表１に記載のそれぞれの実施例及び比較例について下記の方法にて試験布を作製した。 For each of the examples and comparative examples listed in Table 1, test cloths were prepared by the following method.
（１）試験布の作製（塗布法）＜実施例１〜３、比較例１〜２＞
表１に記載した親水化剤を水及びイソプロピルアルコールを用いて０．５％溶液となるように調製し、スパンボンド法にて作製されたポリプロピレン不織布（目付２０ｇ／ｍ２）をこの溶液に２０℃×５分間浸漬させる。浸漬後の不織布は、マングルロールで絞り率が１００％（絞り率％＝１００×（マングル処理後の不織布重量−マングル処理前の不織布重量）／マングル処理前の不織布重量）となるよう絞り、８０℃×３０分間送風乾燥させた。これを２０℃×４０％ＲＨの恒温恒湿室で２４時間放置し試験布とした。
(1) Preparation of test cloth (coating method) <Examples 1 to 3, Comparative Examples 1 and 2>
A hydrophilizing agent described in Table 1 was prepared using water and isopropyl alcohol so as to be a 0.5% solution, and a polypropylene non-woven fabric (weight per unit area: 20 g / m 2 ) prepared by a spunbond method was added to this solution. Immerse at 5 ° C for 5 minutes. The nonwoven fabric after dipping is drawn with a mangle roll so that the drawing rate is 100% (drawing rate% = 100 × (weight of nonwoven fabric after mangle treatment−weight of nonwoven fabric before mangle treatment) / weight of nonwoven fabric before mangle treatment), 80 It was air-dried for 30 minutes at ° C. This was left to stand for 24 hours in a constant temperature and humidity chamber of 20 ° C. × 40% RH to obtain a test cloth.
（２）試験布の作製（混練法）＜実施例４〜６、比較例３〜４＞
ポリプロピレン樹脂（三井化学株式会社製）に表１に記載した親水化剤を２０重量％となるように添加し、溶融混練してマスターバッチのペレットを作製した。次にこのマスターバッチをポリプロピレン樹脂（三井化学株式会社製）に対して２５重量％となるように添加して、押出機で溶融し、スパンボンド法にて長繊維不織布を得た。即ち、ポリプロピレンペレットを溶融後紡糸し、エジェクターにて牽引し、開繊した後、移動するネット上に捕集してウエブを形成した。得られた不織布を構成する長繊維の繊度は０．５デニールであった。この不織布を１３０℃に加熱したエンボスロールにて部分的に熱圧着し、目付が２０ｇ／ｍ２、厚みが１００μｍの長繊維不織布シートを得た。
(2) Preparation of test cloth (kneading method) <Examples 4 to 6 and Comparative Examples 3 to 4>
The hydrophilizing agent described in Table 1 was added to polypropylene resin (Mitsui Chemicals Co., Ltd.) so as to be 20% by weight, and melt-kneaded to prepare master batch pellets. Next, this master batch was added to a polypropylene resin (manufactured by Mitsui Chemicals Co., Ltd.) so as to be 25% by weight, melted with an extruder, and a long fiber nonwoven fabric was obtained by a spunbond method. That is, polypropylene pellets were melted and spun, pulled by an ejector, opened, and then collected on a moving net to form a web. The fineness of the long fibers constituting the obtained nonwoven fabric was 0.5 denier. This nonwoven fabric was partially thermocompression bonded with an embossing roll heated to 130 ° C. to obtain a long-fiber nonwoven fabric sheet having a basis weight of 20 g / m 2 and a thickness of 100 μm.
作製した試験布については、下記の評価方法を用いてそれぞれ評価を行った。 About the produced test cloth, it evaluated using the following evaluation method, respectively.
＜初期親水性の評価＞
試験布を水平板上に置き、試料上１０ｍｍの高さよりビュレットを用いて０．０５ｍＬのイオン交換水を滴下させ、その水滴が完全に吸収されるまでの時間を測定した。試験結果を表２に示す。
<Evaluation of initial hydrophilicity>
A test cloth was placed on a horizontal plate, 0.05 mL of ion-exchanged water was dropped from a height of 10 mm on the sample using a burette, and the time until the water droplets were completely absorbed was measured. The test results are shown in Table 2.
＜耐久親水性の評価＞
試験布を１０ｃｍ×１０ｃｍの小片に裁断し、水平板上に置き、試料上１０ｍｍの高さよりビュレットを用いて０．２ｍＬのイオン交換水を滴下させ、その水滴が完全に吸収されるまでの時間を測定した。測定後は試料上へ５０ｍＬのイオン交換水を全面に振りかけて通過させた後、８０℃×２０分間送風乾燥させ、同様の操作を繰り返し、３回目まで測定を行った。なお、測定時間が６０秒を超えた時点で測定を中止とした。試験結果を表２に示す。
<Evaluation of durable hydrophilicity>
The test cloth is cut into small pieces of 10 cm × 10 cm, placed on a horizontal plate, 0.2 mL of ion-exchanged water is dropped from a height of 10 mm on the sample using a burette, and the time until the water drops are completely absorbed Was measured. After the measurement, 50 mL of ion-exchanged water was sprinkled over the entire surface, and then air-dried at 80 ° C. for 20 minutes, and the same operation was repeated until the third measurement. The measurement was stopped when the measurement time exceeded 60 seconds. The test results are shown in Table 2.
本発明の繊維用親水化剤は、紙おむつや生理用品等の吸収性を必要とする熱可塑性合成繊維、特にポリオレフィン系不織布に使用することで初期親水性を発揮し、更にはこの親水性を持続させることが出来る。 The fiber hydrophilizing agent of the present invention exhibits initial hydrophilicity when used for thermoplastic synthetic fibers that require absorbency, such as disposable diapers and sanitary products, especially polyolefin nonwoven fabrics, and further maintains this hydrophilicity. It can be made.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| JP2009236598A JP2011084824A (en) | 2009-10-13 | 2009-10-13 | Hydrophilizing agent for fiber and fiber containing the same |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2009236598A JP2011084824A (en) | 2009-10-13 | 2009-10-13 | Hydrophilizing agent for fiber and fiber containing the same |
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| JP2011084824A true JP2011084824A (en) | 2011-04-28 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012041341A (en) * | 2010-08-10 | 2012-03-01 | Evonik Goldschmidt Gmbh | Dispersant and method of producing the same |
| CN109535303A (en) * | 2018-12-03 | 2019-03-29 | 东莞长联新材料科技股份有限公司 | A kind of Photocurable oligomers, preparation method and fabric surface treatments liquid and application method containing it |
| JP2021038496A (en) * | 2019-09-02 | 2021-03-11 | 百事基材料（青島）股▲分▼有限公司Ｂｅｓｔｅｅ Ｍａｔｅｒｉａｌ （Ｔｓｉｎｇｔａｏ） Ｃｏ．， Ｌｔｄ． | Plant functional polypropylene spunbonded nonwoven fabric and method for manufacturing the same |
| CN115286492A (en) * | 2021-08-03 | 2022-11-04 | 常熟耐素生物材料科技有限公司 | Cardanol-based polymer polyol and preparation method thereof |
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2009
- 2009-10-13 JP JP2009236598A patent/JP2011084824A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012041341A (en) * | 2010-08-10 | 2012-03-01 | Evonik Goldschmidt Gmbh | Dispersant and method of producing the same |
| CN109535303A (en) * | 2018-12-03 | 2019-03-29 | 东莞长联新材料科技股份有限公司 | A kind of Photocurable oligomers, preparation method and fabric surface treatments liquid and application method containing it |
| JP2021038496A (en) * | 2019-09-02 | 2021-03-11 | 百事基材料（青島）股▲分▼有限公司Ｂｅｓｔｅｅ Ｍａｔｅｒｉａｌ （Ｔｓｉｎｇｔａｏ） Ｃｏ．， Ｌｔｄ． | Plant functional polypropylene spunbonded nonwoven fabric and method for manufacturing the same |
| JP7056981B2 (en) | 2019-09-02 | 2022-04-19 | 百事基材料（青島）股▲分▼有限公司 | Plant functional polypropylene spunbonded non-woven fabric and its manufacturing method |
| CN115286492A (en) * | 2021-08-03 | 2022-11-04 | 常熟耐素生物材料科技有限公司 | Cardanol-based polymer polyol and preparation method thereof |
| CN115286492B (en) * | 2021-08-03 | 2023-11-03 | 常熟耐素生物材料科技有限公司 | Cardanol-based polymer polyol and preparation method thereof |
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