JP2009138311A - Flexible filament nonwoven fabric - Google Patents
Flexible filament nonwoven fabric Download PDFInfo
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- JP2009138311A JP2009138311A JP2007318345A JP2007318345A JP2009138311A JP 2009138311 A JP2009138311 A JP 2009138311A JP 2007318345 A JP2007318345 A JP 2007318345A JP 2007318345 A JP2007318345 A JP 2007318345A JP 2009138311 A JP2009138311 A JP 2009138311A
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- -1 ester compound Chemical class 0.000 claims abstract description 65
- 239000000835 fiber Substances 0.000 claims abstract description 60
- 238000002844 melting Methods 0.000 claims abstract description 20
- 230000008018 melting Effects 0.000 claims abstract description 20
- 229920000098 polyolefin Polymers 0.000 claims abstract description 16
- 238000005452 bending Methods 0.000 claims description 22
- 239000004743 Polypropylene Substances 0.000 claims description 18
- 229920001155 polypropylene Polymers 0.000 claims description 18
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- 150000003077 polyols Chemical class 0.000 claims description 8
- 150000002762 monocarboxylic acid derivatives Chemical class 0.000 claims description 4
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- 229920002635 polyurethane Polymers 0.000 abstract description 4
- 239000004814 polyurethane Substances 0.000 abstract description 4
- 238000010030 laminating Methods 0.000 abstract 1
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- 239000008172 hydrogenated vegetable oil Substances 0.000 description 4
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- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 3
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- 150000004665 fatty acids Chemical class 0.000 description 2
- XMHIUKTWLZUKEX-UHFFFAOYSA-N hexacosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCC(O)=O XMHIUKTWLZUKEX-UHFFFAOYSA-N 0.000 description 2
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- 150000002763 monocarboxylic acids Chemical class 0.000 description 2
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- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 2
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- 238000012805 post-processing Methods 0.000 description 2
- 230000036556 skin irritation Effects 0.000 description 2
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- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004711 α-olefin Substances 0.000 description 2
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical compound OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 description 1
- ATNNLHXCRAAGJS-QZQOTICOSA-N (e)-docos-2-enoic acid Chemical compound CCCCCCCCCCCCCCCCCCC\C=C\C(O)=O ATNNLHXCRAAGJS-QZQOTICOSA-N 0.000 description 1
- QCHVBVDUBACNFH-UHFFFAOYSA-N 2-(hydroxymethyl)penta-2,3-diene-1,5-diol Chemical compound OCC=C=C(CO)CO QCHVBVDUBACNFH-UHFFFAOYSA-N 0.000 description 1
- KIHBGTRZFAVZRV-UHFFFAOYSA-N 2-Hydroxyoctadecanoic acid Natural products CCCCCCCCCCCCCCCCC(O)C(O)=O KIHBGTRZFAVZRV-UHFFFAOYSA-N 0.000 description 1
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 description 1
- JPUHAXBCXWSQMM-UHFFFAOYSA-N 2-hydroxyoctadec-2-enoic acid Chemical compound CCCCCCCCCCCCCCCC=C(O)C(O)=O JPUHAXBCXWSQMM-UHFFFAOYSA-N 0.000 description 1
- QLKSFCHONRVCOU-UHFFFAOYSA-N 3-[2-(2,3-dihydroxypropoxy)ethoxy]propane-1,2-diol Chemical compound OCC(O)COCCOCC(O)CO QLKSFCHONRVCOU-UHFFFAOYSA-N 0.000 description 1
- ALRHLSYJTWAHJZ-UHFFFAOYSA-N 3-hydroxypropionic acid Chemical compound OCCC(O)=O ALRHLSYJTWAHJZ-UHFFFAOYSA-N 0.000 description 1
- LXKCZUOSRQSRHW-UHFFFAOYSA-N 6-hydroxyoctadecanoic acid Chemical compound CCCCCCCCCCCCC(O)CCCCC(O)=O LXKCZUOSRQSRHW-UHFFFAOYSA-N 0.000 description 1
- 235000021357 Behenic acid Nutrition 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- DPUOLQHDNGRHBS-UHFFFAOYSA-N Brassidinsaeure Natural products CCCCCCCCC=CCCCCCCCCCCCC(O)=O DPUOLQHDNGRHBS-UHFFFAOYSA-N 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 241000692870 Inachis io Species 0.000 description 1
- 229920001410 Microfiber Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- 239000011954 Ziegler–Natta catalyst Substances 0.000 description 1
- 229940116226 behenic acid Drugs 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
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- 239000013078 crystal Substances 0.000 description 1
- VZFUCHSFHOYXIS-UHFFFAOYSA-N cycloheptane carboxylic acid Natural products OC(=O)C1CCCCCC1 VZFUCHSFHOYXIS-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
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- 229910003460 diamond Inorganic materials 0.000 description 1
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- KFEVDPWXEVUUMW-UHFFFAOYSA-N docosanoic acid Natural products CCCCCCCCCCCCCCCCCCCCCC(=O)OCCC1=CC=C(O)C=C1 KFEVDPWXEVUUMW-UHFFFAOYSA-N 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
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- 239000008103 glucose Substances 0.000 description 1
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- 150000002433 hydrophilic molecules Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
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- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
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- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
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- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
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- Nonwoven Fabrics (AREA)
Abstract
Description
本発明は、ポリオレフィン系長繊維不織布に関し、柔軟性、肌触りが良好な吸収性物品に適した長繊維不織布に関する。 The present invention relates to a polyolefin-based long-fiber nonwoven fabric and relates to a long-fiber nonwoven fabric suitable for an absorbent article having good flexibility and touch.
近年、衛生材料に用いられる吸収性物品は、横漏れ防止のためのサイドギャザーや、足回り、ウエスト周りなどにポリウレタン弾性糸等伸縮材料を張り合わせ用いられるようになってきた。
このようなオムツの構成の変化と共に、近年は使い捨てオムツに対する要求性能が高まり、特に皮膚に刺激を与えやすいギャザー部の刺激を軽減するため、よりソフトなシートが要求されるようになってきた。オムツのウエスト周りや足回りのギャザー部はギャザーの振幅が細かく、振幅の頂点で角が立ちにくくて圧縮されやすいことが望まれる。また、オムツや衛生材料の横漏れ防止のためにつけられているサイドギャザーは、端面が肌に接するため，肌刺激が少なくよりソフトな風合いが望まれる。
In recent years, absorbent articles used as sanitary materials have come to be used with side gathers for preventing side leakage, stretchable materials such as polyurethane elastic yarns, etc., around the legs and waist.
Along with such a change in the configuration of diapers, in recent years, the required performance for disposable diapers has increased, and in order to reduce irritation of the gathered portion that is particularly irritating to the skin, a softer sheet has been required. It is desired that the gathers around the diaper waist and under the legs have a small gather amplitude and are easy to be compressed because the corners of the gather are difficult to stand. In addition, side gathers attached to prevent diapers and sanitary materials from leaking sideways are required to have a softer texture with less skin irritation because the end faces touch the skin.
衛生材料用シートの柔らかさは、主に３つの要素に分類される。ひとつは、シートの曲げ柔らかさと表現される「剛軟度が小さいこと」、二つめはすべすべ感に代表される「摩擦係数が小さいこと」そして三つめには ふわふわ感に代表される「圧縮率が大きいこと」があげられる。これら柔らかさの要素のうち、ギャザー部の風合いに最も関係があるのがシートの曲げや柔らかさ「剛軟度が小さいこと」である。特にシートの構造上ＭＤ方向がＣＤ方向に比べて曲げ硬くなる傾向があるので、ＭＤ方向を曲げ柔らかくすることが重要である。さらに運動による皮膚との擦れによる刺激を小さくするため、滑りやすいこと「摩擦係数が小さいこと」も重要である。 The softness of the sanitary material sheet is mainly classified into three elements. The first is “low bending resistance” expressed as the bending softness of the sheet, the second is “small friction coefficient” typified by a smooth feeling, and the third is “compression ratio” typified by fluffy feeling. Is big. " Among these softness factors, the most relevant to the texture of the gathered portion is the bending and softness of the sheet “low bending resistance”. In particular, the MD direction tends to bend and become harder than the CD direction because of the structure of the sheet, so it is important to bend and soften the MD direction. Furthermore, in order to reduce the irritation caused by rubbing with the skin due to exercise, it is also important that it is slippery and that “the coefficient of friction is small”.
長繊維不織布においても、主としてポリプロピレン系樹脂を用いた不織布を柔軟化する検討が行われてきた。後加工による方法や熱エンボスロールでの圧着を弱める方法があるが、前者の方法では生産性や経済性に劣り、後者の方法では柔軟性は得られるが耐毛羽性が低下する。また柔軟性を得るために目付を小さくすることも考えられるが強度が低下し、オムツ等の製品設計が限定される。
長繊維不織布シートの平均単糸繊度を小さくして柔軟性を得ることも試みられてきた。平均単糸繊度を小さくすることはＭＤ方向の曲げ柔らかさを向上させるには有効であるが、平均単糸繊度を細くしていくには限界がある。
Also in the long-fiber nonwoven fabric, studies have been made to soften the nonwoven fabric mainly using a polypropylene resin. There are a post-processing method and a method of weakening the pressure bonding with the hot embossing roll, but the former method is inferior in productivity and economy, and the latter method provides flexibility but reduces the fluff resistance. In order to obtain flexibility, it is conceivable to reduce the basis weight, but the strength is lowered, and the design of products such as diapers is limited.
It has also been attempted to obtain flexibility by reducing the average single yarn fineness of the long fiber nonwoven fabric sheet. Decreasing the average single yarn fineness is effective to improve the bending softness in the MD direction, but there is a limit to reducing the average single yarn fineness.
特許文献１では、脂肪酸アミド類の滑材をポリオレフィン樹脂に含有させるスパンボンド不織布を製造する方法が開示されている。この場合、柔軟性のうちすべすべ感に代表される「摩擦係数が小さいこと」は改善するものの、シートの曲げ柔らかさは改善しない。
特許文献２では、分割型複合繊維を分割して得られた繊度１デニール以下の極細繊維の複合成分の１成分に親水性化合物としてエステル化合物の一種である脂肪酸グリセリド等の界面活性剤を練りこみ添加する方法が開示されている。この特許文献に開示されている、親水性向上効果を出すためには、親水性の高い脂肪酸グリセリドを用いる必要があり、脂肪酸の分子量が小さいか、水酸基の存在が重要である。このような、親水性の高い界面活性剤の添加は、不織布の親水性を高め、透水性能の向上には有効であるが、曲げ柔らかさを向上させる効果は得られない。
In
本発明は上記の課題を解決することを目的とし、衛生材料に用いられる吸収性物品の横漏れ防止のためのサイドギャザーや、足回り、ウエスト周りなどポリウレタン弾性糸等伸縮材料を張り合わせ用いられる使い捨てオムツのギャザー部用として、曲げ柔軟性に優れ、摩擦抵抗の少ない、長繊維不織布を提供することを目的とする。 DISCLOSURE OF THE INVENTION The present invention aims to solve the above-mentioned problems, and is a disposable that uses side gathers for preventing side leakage of absorbent articles used as sanitary materials, and stretch materials such as polyurethane elastic yarns such as suspensions and waists. An object of the present invention is to provide a long-fiber non-woven fabric that has excellent bending flexibility and low frictional resistance for gathers of diapers.
本発明者らは、前記課題を解決するため鋭意検討した結果、ポリオレフィン系長繊維不織布において、繊維径を特定範囲とし、特定温度の融点を有するエステル化合物を特定量含有することで、曲げ柔軟性、摩擦抵抗性に優れることを見出し、本発明を成すにいたった。即ち、本発明は下記のとおりである。
１．平均単糸繊度が０．７ｄｔｅｘ以上３ｄｔｅｘ以下のポリオレフィン系繊維からなる長繊維不織布であって、融点が７０℃以上であるエステル化合物を繊維重量に対し、０．３〜５ｗｔ％含有することを特徴とする長繊維不織布。
２．前記エステル化合物が３〜６価のポリオールとモノカルボン酸とのエステル化合物であることを特徴とする上記１に記載の長繊維不織布。
３．ポリオレフィン系繊維がポリプロピレン系繊維であり、目付が１０〜４０ｇ／ｍ２であることを特徴とする上記１又は２に記載の長繊維不織布。
４．前記長繊維不織布の、ＭＤ方向の曲げ柔軟度（ｍｍ）、目付（ｇ／ｍ２）、平均単糸繊度（ｄｔｅｘ）が下式（１）を満足することを特徴とする上記１〜３のいずれかに記載の長繊維不織布。
（１） 曲げ柔軟度−１７．９５×（平均単糸繊度）−２．５４×（目付）＜１０
As a result of intensive studies to solve the above problems, the present inventors have found that in a polyolefin-based long fiber nonwoven fabric, the fiber diameter is in a specific range and a specific amount of an ester compound having a melting point at a specific temperature is contained. The present inventors have found that the friction resistance is excellent and have completed the present invention. That is, the present invention is as follows.
1. A non-woven fabric made of polyolefin fibers having an average single yarn fineness of 0.7 dtex or more and 3 dtex or less, and containing 0.3 to 5 wt% of an ester compound having a melting point of 70 ° C. or more with respect to the fiber weight. A long fiber nonwoven fabric.
2. 2. The long fiber nonwoven fabric according to 1 above, wherein the ester compound is an ester compound of a trivalent to hexavalent polyol and a monocarboxylic acid.
3. 3. The long fiber nonwoven fabric according to 1 or 2 above, wherein the polyolefin fiber is a polypropylene fiber and the basis weight is 10 to 40 g / m 2 .
4). The above-mentioned
(1) Flexural flexibility−17.95 × (average single yarn fineness) −2.54 × (weight per unit) <10
本発明の長繊維不織布は、ポリオレフィン系長繊維不織布であり、繊維径を０．７〜３ｄｔｅｘの範囲とし、７０℃以上の融点を有するエステル化合物を、０．３〜５ｗｔ％含有することで、曲げ柔軟性、摩擦抵抗性に優れる事を見出した。
特に、７０℃以上の融点を有するエステル化合物が親油性に優れ、ポリオレフィン繊維の結晶化を抑制し、繊維構造を柔軟にする効果を有しており、より好ましくは、融点が８０〜１５０℃のエステル化合物である。
本発明の不織布は、曲げ柔らかさを高めた、柔軟性、風合い、肌触り性に優れるポリオレフィン系長繊維不織であり、特に吸収性物品のギャザー部や肌に触れる部分に好適に用いることができる。
The long fiber nonwoven fabric of the present invention is a polyolefin-based long fiber nonwoven fabric, having a fiber diameter in the range of 0.7 to 3 dtex, and containing 0.3 to 5 wt% of an ester compound having a melting point of 70 ° C. or higher. It has been found that it has excellent bending flexibility and friction resistance.
In particular, an ester compound having a melting point of 70 ° C. or higher is excellent in lipophilicity, has an effect of suppressing crystallization of polyolefin fibers and softening the fiber structure, and more preferably has a melting point of 80 to 150 ° C. It is an ester compound.
The nonwoven fabric of the present invention is a polyolefin-based long fiber nonwoven fabric that has improved bending softness and is excellent in flexibility, texture, and touch, and can be suitably used particularly for gathered parts of absorbent articles and parts that touch the skin. .
以下本発明について詳述する。
衛生材料用ポリオレフィン系長繊維不織布を構成するポリオレフィン系繊維としては、例えばポリエチレン、ポリプロピレンおよびそれらのモノマーと他のα−オレフィンとの共重合体などの樹脂から成る繊維があげられる。ポリプロピレンは、一般的なチーグラナッタ触媒により合成されるポリマーでも良いし、またメタロセンに代表されるシングルサイト活性触媒により合成されたポリマーであっても良い。他のα−オレフィンとしては、炭素数３〜１０のものであり、具体的にはプロピレン、１−ブテン、１−ペンテン、１−ヘキサン、４−メチル−１−ペンテン、１−オクテンなどが挙げられる。これらは１種類単独でも２種類以上を組み合わせても良い。あるいはポリオレフィン系樹脂を表面層とする芯−鞘繊維などが挙げられるが、強度が強く使用時において破断しにくく、且つ衛生材料の生産時における寸法安定性に優れることからポリプロピレン繊維を用いることが好ましい。また、その繊維形状も通常の円形繊維のみでなく、捲縮繊維、異形繊維などの特殊形態の繊維も含まれる。
The present invention is described in detail below.
Examples of the polyolefin fibers constituting the polyolefin long fiber nonwoven fabric for sanitary materials include fibers made of resins such as polyethylene, polypropylene, and copolymers of these monomers and other α-olefins. Polypropylene may be a polymer synthesized by a general Ziegler Natta catalyst, or may be a polymer synthesized by a single site active catalyst typified by metallocene. Other α-olefins are those having 3 to 10 carbon atoms, and specifically include propylene, 1-butene, 1-pentene, 1-hexane, 4-methyl-1-pentene, 1-octene and the like. It is done. These may be used alone or in combination of two or more. Alternatively, a core-sheath fiber having a polyolefin-based resin as a surface layer may be used, but it is preferable to use polypropylene fiber because it is strong and difficult to break during use and has excellent dimensional stability during production of sanitary materials. . The fiber shape includes not only ordinary circular fibers but also specially shaped fibers such as crimped fibers and irregularly shaped fibers.
長繊維不織布を接合して不織布となす場合の接合手段としては、熱圧着点（ポイントボンディング）法、熱風法、その他、溶融成分での接合（ホットメルト剤）法、などがあるが、熱圧着されたものが好ましい。
また、本発明の不織布を構成する繊維の繊度は０．７ｄｔｅｘ以上３ｄｔｅｘ以下、好ましくは０．７ｄｔｅｘ以上，１．４ｄｔｅｘ以下である。紡糸安定性の観点から０．７ｄｔｅｘ以上であることが重要である。
目付けが１０ｇ／ｍ２未満であれば衛生材料に使用される不織布としては強力が不足する懸念があり、４０ｇ／ｍ２を超えると本願の目的であるオムツギャザー部やサイドギャザー部の用途に用いた場合、本願の発明で柔軟性があるといえども外観的に厚ぼったい印象を与え好ましくない。
好ましくは１０ｇ／ｍ２〜２５ｇ／ｍ２である。
不織布のＭＤ方向（機械方向、タテ方向）の曲げ柔軟度は、本発明において、重要な因子であり、不織布を構成する繊維の平均単糸繊度が細いほど柔軟化する傾向である。
Joining methods for joining long-fiber non-woven fabrics into non-woven fabrics include thermocompression bonding (point bonding) method, hot air method, and other joining methods (hot-melt agent) using molten components. The ones made are preferred.
Further, the fineness of the fibers constituting the nonwoven fabric of the present invention is 0.7 dtex or more and 3 dtex or less, preferably 0.7 dtex or more and 1.4 dtex or less. From the viewpoint of spinning stability, it is important that it is 0.7 dtex or more.
Having a basis weight there is a fear that strength is insufficient as a nonwoven fabric is used for sanitary materials is less than 10 g / m 2, Yo on the application of the diaper gather portion and side gathers part of the present application purpose of exceeding 40 g / m 2 If this is the case, even if the invention of the present application is flexible, it gives an impression that it is thick in appearance, which is not preferable.
Preferably from 10g / m 2 ~25g / m 2 .
The bending flexibility in the MD direction (machine direction, warp direction) of the nonwoven fabric is an important factor in the present invention, and it tends to be more flexible as the average single yarn fineness of the fibers constituting the nonwoven fabric is thinner.
一方、不織布を構成する繊維の平均単糸繊度が太くても、本発明のエステル化合物を添加すれば柔軟になるが、オムツギャザー部等に実質的に有効な柔軟性を得るには３ｄｔｅｘ以下が好ましく、より好ましくは１．４ｄｔｅｘ以下である。 On the other hand, even if the average single yarn fineness of the fibers constituting the nonwoven fabric is thick, it becomes flexible if the ester compound of the present invention is added, but 3 dtex or less is necessary to obtain a substantially effective flexibility in the diaper gathers portion and the like. Preferably, it is 1.4 dtex or less.
本発明の長繊維不織布の部分熱圧着における熱圧着面積率は、強度保持、柔軟性の点から、５〜４０％が好ましく、より好ましくは５〜１５％である。
本発明において、７０℃以上の融点を有するエステル化合物を含有したポリオレフィン系繊維の曲げ柔らかさの効果は、部分熱圧着面積率が少ないほど、その柔軟化効果が発揮されやすい。
また、該エステル化合物は長繊維不織布の圧着温度を下げる効果もあり、熱圧着に伴うフィルム化により生じる不織布の硬化現象も緩和することができる。部分熱圧着処理は、超音波法により、または加熱エンボスロール間にウェブを通すことにより行うことができ、これにより、表裏一体化され、例えばピンポイント状、楕円形状、ダイヤ形状、矩形状等の浮沈模様が不織布全面に散点する。
The thermocompression bonding area ratio in partial thermocompression bonding of the long-fiber nonwoven fabric of the present invention is preferably 5 to 40%, more preferably 5 to 15%, from the viewpoint of strength retention and flexibility.
In the present invention, the flexural softening effect of the polyolefin fiber containing an ester compound having a melting point of 70 ° C. or higher is more likely to be exhibited as the partial thermocompression area ratio decreases.
In addition, the ester compound has an effect of lowering the pressure bonding temperature of the long-fiber nonwoven fabric, and can also alleviate the curing phenomenon of the nonwoven fabric caused by film formation accompanying thermocompression bonding. The partial thermocompression treatment can be performed by an ultrasonic method or by passing a web between heated embossing rolls, whereby the front and back are integrated, for example, pinpoint, oval, diamond, rectangular, etc. Floating patterns are scattered all over the nonwoven fabric.
本発明に使用されるエステル化合物は、３〜６価のポリオールとモノカルボン酸とのエステル化合物が好ましく用いられる。
３〜６価のポリオールとは例えばグリセリン、トリメチロールプロパン等の３価のポリオール、ペンタエリスリトール、グルコース、ソルビタン、ジグリセリン、エチレングリコールジグリセリルエーテル等の４価のポリオール、トリグリセリン、トリメチロールプロパンジグリセリルエーテル等の５価のポリオール、ソルビトール、テトラグリセリン、ジペンタエリスリトール等の６価のポリオール等が挙げられる。
As the ester compound used in the present invention, an ester compound of a tri- to hexavalent polyol and a monocarboxylic acid is preferably used.
Examples of the trivalent to hexavalent polyol include trivalent polyols such as glycerin and trimethylolpropane, tetravalent polyols such as pentaerythritol, glucose, sorbitan, diglycerin, and ethylene glycol diglyceryl ether, triglycerin, and trimethylolpropane diene. Examples include pentavalent polyols such as glyceryl ether, hexavalent polyols such as sorbitol, tetraglycerin, and dipentaerythritol.
モノカルボン酸とは例えばオクタン酸、ドデカン酸、テトラデカン酸、オクタデカン酸、ドコサン酸、ヘキサコサン酸、オクタデセン酸、ドコセン酸、イソオクタデカン酸等のモノカルボン酸、シクロヘキサンカルボン酸等の脂環式モノカルボン酸、安息香酸、メチルベンゼンカルボン酸等の芳香族モノカルボン酸、ヒドロキシプロピオン酸、ヒドロキシオクタデカン酸、ヒドロキシオクタデセン酸等のヒドロキシ脂肪族モノカルボン酸、アルキルチオプロピオン酸等の含イオウ脂肪族モノカルボン酸等が挙げられる。 Examples of monocarboxylic acids include octacarboxylic acid, dodecanoic acid, tetradecanoic acid, octadecanoic acid, docosanoic acid, hexacosanoic acid, octadecenoic acid, docosenoic acid, isooctadecanoic acid, and other alicyclic monocarboxylic acids such as cyclohexanecarboxylic acid. Aromatic monocarboxylic acids such as benzoic acid and methylbenzenecarboxylic acid, hydroxyaliphatic monocarboxylic acids such as hydroxypropionic acid, hydroxyoctadecanoic acid and hydroxyoctadecenoic acid, sulfur-containing aliphatic monocarboxylic acids such as alkylthiopropionic acid, etc. Is mentioned.
本発明で使用されるエステル化合物は特に単一成分である必要は無く、２種以上の混合物でもよい。天然物由来の油脂類を使用してもよい。ただし、不飽和脂肪酸を含むエステル化合物は酸化されやすく紡糸時に酸化劣化しやすいため、好ましくは飽和の脂肪族モノカルボン酸または芳香族モノカルボン酸が好ましい。天然物由来の油脂類を使用する場合は原料油に比べて、無臭で安定なため、水素添加したエステル化合物が好ましく用いられる。 The ester compound used in the present invention is not particularly required to be a single component, and may be a mixture of two or more. Oils and fats derived from natural products may be used. However, ester compounds containing unsaturated fatty acids are easily oxidized and easily deteriorated during spinning, so saturated aliphatic monocarboxylic acids or aromatic monocarboxylic acids are preferred. When natural oils and fats are used, hydrogenated ester compounds are preferably used because they are odorless and stable compared to raw material oils.
本発明に使用されるエステル化合物はモノカルボン酸の分子量が比較的大きく、親油性が高いことが重要である。親油性が高いことにより、ポリプロピレン樹脂の非晶部に入り込み結晶化を阻害して非晶領域が増加するため、曲げ柔軟度が小さくなる効果を得ることができる。
この効果を得るためには、エステル化合物の融点は７０℃以上であることが必要である。更に好ましくは、８０〜１５０℃である。エステル化合物の融点がブロードで、範囲を有する場合は、平均の融点を意味する。また、本願エステル化合物は効果を阻害しない範囲で他の組成物、たとえば融点が７０℃未満のエステル化合物やその他の有機化合物が混合されていても良い。
It is important that the ester compound used in the present invention has a relatively high molecular weight of monocarboxylic acid and high lipophilicity. Due to the high lipophilicity, it enters into the amorphous part of the polypropylene resin and inhibits crystallization to increase the amorphous region, so that the effect of reducing the bending flexibility can be obtained.
In order to obtain this effect, the melting point of the ester compound needs to be 70 ° C. or higher. More preferably, it is 80-150 degreeC. When the melting point of the ester compound is broad and has a range, it means the average melting point. Further, the ester compound of the present application may be mixed with another composition, for example, an ester compound having a melting point of less than 70 ° C. or other organic compounds as long as the effect is not impaired.
本発明のエステル化合物の付与方法は、ポリマーブレンド法でもよく、後加工で不織布に付与しても良い。ポリマーブレンド法の方が、本発明のエステル化合物と、ポリオレフィンポリマーとの繊維構造における相互作用、即ちポリオレフィンの結晶化抑制作用が生じやすく、好ましい態様である。
一般に、本発明とは異なる、親水性が高いエステル化合物においては、繊維表面から外側にブリードアウトする傾向が強いため、繊維表面にぬめりが生じたり、曲げ柔軟度を向上させる効果が不十分となりやすい。
The ester compound application method of the present invention may be a polymer blend method, or may be applied to the nonwoven fabric by post-processing. The polymer blend method is a preferred embodiment because an interaction in the fiber structure between the ester compound of the present invention and the polyolefin polymer, that is, an effect of suppressing crystallization of the polyolefin tends to occur.
In general, ester compounds having a high hydrophilicity different from the present invention have a strong tendency to bleed out from the fiber surface, so that the fiber surface tends to become slimy or the effect of improving the bending flexibility tends to be insufficient. .
本発明に使用されるエステル化合物のポリオレフィン系樹脂に対する添加量は０．３ｗｔ％以上５ｗｔ％以下がよい。実施例にも示しているが比較的少量の添加でも曲げ柔軟度や滑りやすさが著しく向上し、添加量を増やしても添加量に見合った性能向上は見られない。このことから、紡糸性、発煙性を加味し、５ｗｔ％以下が適切であり、より好ましくは０．５ｗｔ％〜３．５ｗｔ％以下さらに好ましくは０．５ｗｔ％〜２．０ｗｔ％である。
本発明のエステル化合物を含有したポリプロピレン樹脂をスパンボンド法によりウェブ化して得られた実施例１〜７のＭＤ方向の曲げ柔軟度（ｍｍ）を重回帰分析した結果、
エステル化合物を添加した場合は、
ＭＤ方向の曲げ柔軟度（ｍｍ）＝１７．９５×（平均単糸繊度ｄｔｅｘ）＋２．５４×（目付ｇ／ｍ２）−１０．６２×（本願エステル化合物添加有無）＋１６．２ （式２）
（融点が７０℃以上であるエステル化合物添加有：１、添加無：０を代入する。）
線形の式２を満足する。相関係数は、Ｒ２＝０．９５であり、非常に高い相関をしめす。
The addition amount of the ester compound used in the present invention to the polyolefin resin is preferably 0.3 wt% or more and 5 wt% or less. As shown in the examples, even when a relatively small amount is added, the bending flexibility and the slipperiness are remarkably improved, and even if the amount added is increased, no performance improvement corresponding to the amount added is observed. Therefore, in consideration of spinnability and smoke generation, 5 wt% or less is appropriate, more preferably 0.5 wt% to 3.5 wt% or less, and further preferably 0.5 wt% to 2.0 wt%.
The results of multiple regression analysis of the bending flexibility (mm) in the MD direction of Examples 1 to 7 obtained by forming a polypropylene resin containing the ester compound of the present invention into a web by the spunbond method,
When an ester compound is added,
Flexural flexibility in the MD direction (mm) = 17.95 × (average single yarn fineness dtex) + 2.54 × (weight per unit area g / m 2 ) -10.62 × (addition / absence of ester compound of the present application) +16.2 (Formula 2) )
(Ester compound with melting point of 70 ° C. or higher is added: 1, no addition: 0 is substituted.)
Satisfy
すなわち、本発明において、融点が７０℃以上であるエステル化合物を添加することにより、ＭＤ方向の曲げ柔軟度を１０．６ｍｍ小さくすることができ、曲げ柔軟性が向上する効果があることを意味する。
この結果を踏まえ、 衛生材料の吸収性物品に使用されるサイドギャザーやウエスト周り、足回りのギャザー部に要求される、低応力で屈曲し、ギャザーの振幅が細かいことや角が立ちにくいこと、ギャザーの振幅が圧縮されやすいことにより、柔らかさが実感できる範囲を検討した結果、下式（１）
ＭＤ方向曲げ柔軟度（ｍｍ）−１７．９５×（平均単糸繊度ｄｔｅｘ）−２．５４×（目付ｇ／ｍ２）＜１０ （１）
を満足すればよいことを見出したものである。
That is, in the present invention, by adding an ester compound having a melting point of 70 ° C. or higher, the bending flexibility in the MD direction can be reduced by 10.6 mm, which means that the bending flexibility is improved. .
Based on this result, the side gathers used in hygienic material absorbent articles, waist circumference, and gathers around the legs are bent with low stress, the gathers have small amplitude and corners are difficult to stand, As a result of examining the range in which softness can be realized by the fact that the gather amplitude is easily compressed, the following equation (1)
MD direction bending flexibility (mm) -17.95 × (average single yarn fineness dtex) −2.54 × (weight per unit area g / m 2 ) <10 (1)
It has been found that it is sufficient to satisfy the above.
本発明のエステル化合物を添加した繊維を、ウェブ化する前に採取し、その初期引張抵抗度を測定した。その結果、エステル化合物を含有した繊維は初期引張抵抗度が小さいことが明らかになった。このことから、エステル化合物をポリオレフィン系繊維に含有することにより、配向した結晶が滑りやすくなっているものと推定される。
また、該エステル化合物を添加した長繊維不織布は、摩擦係数が低く、すべすべ感にも
優れているため、肌刺激性が少なく、風合いが優れている。このため、ギャザー部のみならず使い捨てオムツのバックシートや肌と接触する部分にも好適に使用できる。
The fiber to which the ester compound of the present invention was added was collected before web formation, and its initial tensile resistance was measured. As a result, it was revealed that the fiber containing the ester compound has a small initial tensile resistance. From this, it is presumed that the oriented crystals are slippery by containing the ester compound in the polyolefin fiber.
Further, the long fiber nonwoven fabric to which the ester compound is added has a low coefficient of friction and is excellent in a smooth feeling, and therefore has little skin irritation and excellent texture. For this reason, it can be suitably used not only for the gather part but also for the back sheet of the disposable diaper and the part that contacts the skin.
以下、実施例および比較例により本発明を具体的に説明するが、下記の実施例に制限されるものではない。
なお、各特性の評価方法は下記のとおりである。
１．平均単糸繊度（ｄｔｅｘ）
生産された不織布の両端１０ｃｍを除き、ＣＤ方向にほぼ５等分して１ｃｍ角の試験片をサンプリングし、顕微鏡で繊維の直径を各２０点ずつ測定し、ポリプロピレンの密度を０．９１ｇ／ｃｍ３として、その平均値から繊度を算出した。
EXAMPLES Hereinafter, although an Example and a comparative example demonstrate this invention concretely, it is not restrict | limited to the following Example.
In addition, the evaluation method of each characteristic is as follows.
1. Average single yarn fineness (dtex)
Except for 10cm at both ends of the produced non-woven fabric, a 1cm square test piece was sampled by dividing into approximately 5 equal parts in the CD direction, the fiber diameter was measured 20 points at a time with a microscope, and the density of polypropylene was 0.91g / cm 3 , the fineness was calculated from the average value.
２．糸条の破断強伸度、初期引張抵抗度
紡糸時に掬い取った糸条１００本を丁寧に引きそろえ ＪＩＳ−Ｌ１０１３に従い、初荷重１０ｇをかけ定速伸張試験型引張試験機につかみ間隔３０ｃｍで取り付け、 引張速度３０ｃｍ／分の条件で伸張し破断するまでの試験片の最大荷重と伸度、初期引張抵抗度を測定した。
３．目付（ｇ／ｍ２）
ＪＩＳ−Ｌ１９０６に規定の方法に従い、経２０ｃｍ×緯５ｃｍの試験片を５枚採取して質量を測定し、その平均値を単位面積あたりの重量に換算して求めた。
2. Tensile strength at break and initial tensile resistance Gently align 100 yarns picked up at the time of spinning In accordance with JIS-L1013, apply an initial load of 10g to a constant-speed extension test type tensile tester with a grip distance of 30cm The maximum load and elongation and the initial tensile resistance until the specimen was stretched and fractured under the condition of a tensile speed of 30 cm / min were measured.
3. Weight per unit (g / m 2 )
According to the method specified in JIS-L1906, five test pieces measuring 20 cm × 5 cm were collected and measured for mass, and the average value was calculated by converting the weight per unit area.
４．厚み（ｍｍ）
ＪＩＳ−Ｌ１９０６に規定の方法に従い、接圧荷重１００ｇ／ｃｍ２にて幅方向に１０箇所測定し、その平均値を厚みとした。厚み計は、ＰＥＡＣＯＣＫ社製ＮＯ．２０７を用いた。
５．破断強力・伸度、５％モジュラス
生産された不織布の両端１０ｃｍを除き、幅２０ｃｍ毎に５ｃｍ×３０ｃｍの試験片をＭＤ方向、ＣＤ方向に各１枚を採取し、定速伸張試験型引張試験機に把持長１０ｃｍで取り付け、３０ｃｍ／分の引張速度で試験片が破断するまで伸張し、試験片の最大荷重（破断強力Ｎ／５ｃｍ）と最大荷重に到達した伸度（％）の平均値をＭＤ，ＣＤ方向で求めた。
伸度５％の応力を５％モジュラス（Ｎ／５ｃｍ）とした。
4). Thickness (mm)
In accordance with the method defined in JIS-L1906, 10 points were measured in the width direction at a contact pressure load of 100 g / cm 2 , and the average value was taken as the thickness. The thickness gauge is a PEACOCK NO. 207 was used.
5). Tensile strength / elongation, 5% modulus Except 10cm at both ends of the produced nonwoven fabric, take a 5cm x 30cm test piece for each 20cm width in the MD direction and CD direction, and test it at a constant speed. Attached to the machine with a grip length of 10 cm, stretched until the specimen breaks at a tensile speed of 30 cm / min, and the average value of the maximum load (breaking strength N / 5 cm) of the specimen and the elongation (%) at which the maximum load was reached Was obtained in the MD and CD directions.
A stress having an elongation of 5% was taken as a 5% modulus (N / 5 cm).
６．曲げ柔軟度
製品から幅１０ｃｍ、長さ３０ｃｍの試験片を５枚採取し、（ＭＤ方向を測定する場合はＭＤ方向が３０ｃｍ）、図１のように平らな台の上に置き、試験片の中央部に長手方向に直交するようにステンレス製の定規をのせる。定規は幅２．５ｃｍ、測定目盛３０ｃｍのものが好ましい（１）。次いで試験片の一方の端を持ち上げてステンレス製の定規を境にした反対側の試験片の上に折り目をつけず、ループを形成させた状態でゆっくりと重ねる（２）。次にステンレス製の定規を折り重ねられて生じたループの方向へ、長手方向に直交した状態でゆっくりとスライドさせ（３）、試料の反発力でループが伸びて折り重ねが無くなったときの状態を終点とし、試験片の端と定規間の距離（Ｌ）をスケールで読む（４）。表裏ｎ＝５の平均値で表す。短いものほど柔軟であることを示す。
6). Bending flexibility Five specimens having a width of 10 cm and a length of 30 cm are taken from the product (when the MD direction is measured, the MD direction is 30 cm) and placed on a flat table as shown in FIG. Place a stainless steel ruler in the center so that it is perpendicular to the longitudinal direction. The ruler preferably has a width of 2.5 cm and a measurement scale of 30 cm (1). Next, one end of the test piece is lifted and slowly overlapped with a loop formed on the opposite test piece with the stainless ruler as the boundary (2). Next, slide the stainless steel ruler slowly in the direction perpendicular to the longitudinal direction in the direction of the loop generated by folding (3), and when the loop is extended by the repulsive force of the sample and the folding disappears And the distance (L) between the edge of the test piece and the ruler is read on a scale (4). The average value of front and back n = 5 is expressed. A shorter one indicates more flexibility.
７．剛軟度（４５°カンチレバー法）（ＪＩＳ−Ｌ１０９６）
８．摩擦係数（ＭＩＵ）
試料をタテ（ＭＤ方向）３０ｃｍ×ヨコ（ＣＤ方向）３ｃｍに切り取り、カトーテック製摩擦感テスター（ＫＥＳ−ＳＥ−ＳＴＰ）に試料を２０ｇ／ｃｍの所定の荷重をかけて取り付け、摩擦子には共布を摩擦方向がタテになるようにセットし、標準測定条件（ＳＥＮＳ：Ｈ，ＳＰＥＥＤ：１ｍｍ／ｓｅｃ，荷重：５０ｇ）でＭＩＵ（摩擦係数）を測定し
た。タテ（ＭＤ）方向を３回測定し、その平均で示す。数値が小さい方が、摩擦抵抗が少ないことを意味する。
7). Flexibility (45 ° cantilever method) (JIS-L1096)
8). Friction coefficient (MIU)
Cut the sample vertically (MD direction) 30 cm x width (CD direction) 3 cm, and attach the sample to a Kato Tech friction tester (KES-SE-STP) with a predetermined load of 20 g / cm. The co-fabric was set so that the friction direction was vertical, and MIU (friction coefficient) was measured under standard measurement conditions (SENS: H, SPEED: 1 mm / sec, load: 50 g). The vertical (MD) direction is measured three times, and the average is shown. A smaller value means less frictional resistance.
［実施例１］
酸化チタンを含有したポリプロピレン（ＪＩＳ−Ｋ７２１０の表１の条件で測定したＭＦＲ＝４０）を原料とし、これに、予め、融点が８６〜９０℃（平均融点８８℃）のオクタデカン酸のグリセリド（水添動植物油脂）を３０ｗｔ％添加したマスターバッチを５ｗｔ％混合したチップを使用し、ノズル径０．３５ｍｍ、ノズル数３０００個／ｍを有する２積層のスパンボンド製造機を用いて、吐出量１．７Ｋｇ／分・ｍ・層で溶融紡糸し、延伸用高速気流の調整により平均単糸繊度２．０ｄｔｅｘに調整し、分散・開繊装置の調整によって得られたウェブを、フラットロールとエンボスロール（パターン仕様：直径０．４２５ｍｍ円形、千鳥配列、圧着率６．３％、横ピッチ２．１ｍｍ、縦ピッチ１．１ｍｍ）の間に通して熱と圧力を温度と線圧で調整して繊維同士を接着し、幅１．２ｍ、目付１８ｇ／ｍ２のスパンボンド不織布を得た。得られたテトラデカン酸のグリセリドを１．５ｗｔ％含有した不織布の物性を表１に示した。
[Example 1]
Polypropylene containing titanium oxide (MFR = 40 measured under the conditions of Table 1 of JIS-K7210) is used as a raw material, and glyceride of octadecanoic acid having a melting point of 86 to 90 ° C. (average melting point of 88 ° C.) (water Using a chip mixed with 5 wt% of a master batch to which 30 wt% of a pulverized vegetable oil and fat was mixed, and using a two-layer spunbond manufacturing machine having a nozzle diameter of 0.35 mm and a nozzle count of 3000 / m, a discharge amount of 1. Melt spinning at a layer of 7 kg / min · m ·, adjusting the average single yarn fineness to 2.0 dtex by adjusting the high speed air flow for drawing, and adjusting the web obtained by adjusting the dispersion / opening device into a flat roll and an embossing roll ( Pattern specification: 0.425mm diameter circle, zigzag array, pressure bonding rate 6.3%, horizontal pitch 2.1mm, vertical pitch 1.1mm) Adjust using linear pressure to bond the fibers to give width 1.2 m, a spunbonded nonwoven fabric having a basis weight of 18 g / m 2. Table 1 shows the physical properties of the resulting nonwoven fabric containing 1.5 wt% of tetradecanoic acid glycerides.
［実施例２］
実施例１と同様の方法で、延伸用高速気流を調整し、平均単糸繊度を１．２ｄｔｅｘに調整してスパンボンド不織布を得た。得られたオクタデカン酸のグリセリドを１．５ｗｔ％含有した目付１９ｇ／ｍ２不織布の物性を表１に示した。
[Example 2]
In the same manner as in Example 1, the high-speed air flow for stretching was adjusted, and the average single yarn fineness was adjusted to 1.2 dtex to obtain a spunbonded nonwoven fabric. Table 1 shows the physical properties of the obtained nonwoven fabric having a basis weight of 19 g / m 2 containing 1.5 wt% of glycerides of octadecanoic acid.
［実施例３］
酸化チタンを含有したポリプロピレン（ＪＩＳ−Ｋ７２１０の表１の条件で測定したＭＦＲ＝４０）を原料とし、これに、予め、融点が８６〜９０℃のオクタデカン酸のグリセリド（水添動植物油脂）を３０ｗｔ％添加したマスターバッチを１１．７ｗｔ％混合したチップを使用し、ノズル径０．３５ｍｍ、ノズル数３０００個／ｍを有する２積層のスパンボンド製造機を用いて、吐出量１．７Ｋｇ／分・ｍ・層で溶融紡糸し、延伸用高速気流の調整により平均単糸繊度２．０ｄｔｅｘに調整し、分散・開繊装置の調整によって得られたウェブを、フラットロールとエンボスロール（パターン仕様：直径０．４２５ｍｍ円形、千鳥配列、圧着率６．３％、横ピッチ２．１ｍｍ、縦ピッチ１．１ｍｍ）の間に通して熱と圧力を温度と線圧で調整して繊維同士を接着し、幅１．２ｍ、目付１８ｇ／ｍ２のスパンボンド不織布を得た。得られたオクタデカン酸のグリセリドを３．５ｗｔ％含有した不織布の物性を表１に示した。
[Example 3]
Polypropylene containing titanium oxide (MFR = 40 measured under the conditions of Table 1 of JIS-K7210) is used as a raw material, and 30 wt. Of glyceride (hydrogenated vegetable oil and fat) of octadecanoic acid having a melting point of 86 to 90 ° C. Using a chip with 11.7 wt% of the master batch added with 1% by weight, using a two-layer spunbond manufacturing machine with a nozzle diameter of 0.35 mm and a nozzle number of 3000 / m, a discharge rate of 1.7 kg / min. m / layer is melt-spun, the average single yarn fineness is adjusted to 2.0 dtex by adjusting the high-speed air flow for drawing, and the web obtained by adjusting the dispersion / opening device is made into a flat roll and an embossing roll (pattern specification: diameter 0.425mm circle, staggered arrangement, crimping rate 6.3%, horizontal pitch 2.1mm, vertical pitch 1.1mm) and adjust heat and pressure with temperature and linear pressure Bonding the fibers Te to obtain width 1.2 m, a spunbonded nonwoven fabric having a basis weight of 18 g / m 2. Table 1 shows the physical properties of the obtained nonwoven fabric containing 3.5% by weight of glycerides of octadecanoic acid.
［実施例４］
実施例３と同様の方法で、延伸用高速気流を調整し、平均単糸繊度を１．２ｄｔｅｘに調整してスパンボンド不織布を得た。得られたオクタデカン酸のグリセリドを３．５ｗｔ％含有した目付１９ｇ／ｍ２不織布の物性を表１に示した。
[Example 4]
In the same manner as in Example 3, the high-speed airflow for drawing was adjusted, and the average single yarn fineness was adjusted to 1.2 dtex to obtain a spunbonded nonwoven fabric. Table 1 shows the physical properties of the non-woven fabric having a basis weight of 19 g / m 2 containing 3.5 wt% of glycerides of octadecanoic acid.
［実施例５］
酸化チタンを含有したポリプロピレン（ＪＩＳ−Ｋ７２１０の表１の条件で測定したＭＦＲ＝４０）を原料とし、これに、予め融点８６〜９０℃のオクタデカン酸のグリセリド（水添動植物油脂）を３０ｗｔ％添加したマスターバッチを３．５ｗｔ％混合したチップを使用し、ノズル径０．３５ｍｍ、ノズル数３０００個／ｍを有する２積層のスパンボンド製造機を用いて、吐出量１．７Ｋｇ／分・ｍ・層で溶融紡糸し、延伸用高速気流の調整により平均単糸繊度１．２ｄｔｅｘに調整し、分散・開繊装置の調整によって得られたウェブを、フラットロールとエンボスロール（パターン仕様：直径０．４２５ｍｍ円形、千鳥配列、圧着率６．３％、横ピッチ２．１ｍｍ、縦ピッチ１．１ｍｍ）の間に通して熱と圧力を温度と線圧で調整して繊維同士を接着し、幅１．２ｍ、目付１７ｇ／ｍ２のスパンボンド不織布を得た。得られたテトラデカン酸のグリセリドを１．０ｗｔ％含有した不織
布の物性を表１に示した。
[Example 5]
Polypropylene containing titanium oxide (MFR = 40 measured under the conditions of Table 1 of JIS-K7210) is used as a raw material, and 30 wt% of octadecanoic acid glycerides (hydrogenated vegetable oils and fats) having a melting point of 86 to 90 ° C. are added in advance. Using a chip in which 3.5 wt% of the master batch was mixed and using a two-layer spunbond manufacturing machine having a nozzle diameter of 0.35 mm and a nozzle number of 3000 / m, a discharge rate of 1.7 kg / min · m · The web obtained by melt spinning with a layer, adjusting to an average single yarn fineness of 1.2 dtex by adjusting a high-speed air flow for drawing, and a web obtained by adjusting a dispersion / opening device (pattern specification: diameter 0. 425mm circular, staggered arrangement, crimping rate 6.3%, horizontal pitch 2.1mm, vertical pitch 1.1mm) and adjust the heat and pressure with temperature and linear pressure to make fine Bonded to each other to give a width 1.2 m, a spunbonded nonwoven fabric having a basis weight of 17 g / m 2. Table 1 shows the physical properties of the obtained nonwoven fabric containing 1.0 wt% of glycerides of tetradecanoic acid.
［実施例６］
実施例５と同様の方法で、ラインスピードを調整し、目付を２５ｇ／ｍ２に調整してスパンボンド不織布を得た。得られたオクタデカン酸のグリセリドを１．０ｗｔ％含有した不織布の物性を表１に示した。
[Example 6]
In the same manner as in Example 5, the line speed was adjusted and the basis weight was adjusted to 25 g / m 2 to obtain a spunbonded nonwoven fabric. Table 1 shows the physical properties of the obtained nonwoven fabric containing 1.0 wt% of glycerides of octadecanoic acid.
［実施例７］
酸化チタンを含有したポリプロピレン（ＪＩＳ−Ｋ７２１０の表１の条件で測定したＭＦＲ＝４０）を原料とし、これに、予め融点８６〜９０℃のオクタデカン酸のグリセリド（水添動植物油脂）を３０ｗｔ％添加したマスターバッチを３．５ｗｔ％混合したチップを使用し、ノズル径０．３５ｍｍ、ノズル数３０００個／ｍを有する２積層のスパンボンド製造機を用いて、吐出量１．７Ｋｇ／分・ｍ・層で溶融紡糸し、延伸用高速気流の調整により平均単糸繊度０．９ｄｔｅｘに調整し、分散・開繊装置の調整によって得られたウェブを、フラットロールとエンボスロール（パターン仕様：直径０．４２５ｍｍ円形、千鳥配列、圧着率６．３％、横ピッチ２．１ｍｍ、縦ピッチ１．１ｍｍ）の間に通して熱と圧力を温度と線圧で調整して繊維同士を接着し、幅１．２ｍ、目付１８ｇ／ｍ２のスパンボンド不織布を得た。得られたテトラデカン酸のグリセリドを１．０ｗｔ％含有した不織布の物性を表１に示した。
[Example 7]
Polypropylene containing titanium oxide (MFR = 40 measured under the conditions of Table 1 of JIS-K7210) is used as a raw material, and 30 wt% of octadecanoic acid glycerides (hydrogenated vegetable oils and fats) having a melting point of 86 to 90 ° C. are added in advance. Using a chip in which 3.5 wt% of the master batch was mixed and using a two-layer spunbond manufacturing machine having a nozzle diameter of 0.35 mm and a nozzle number of 3000 / m, a discharge rate of 1.7 kg / min · m · The web obtained by melt spinning with a layer, adjusting the average single yarn fineness to 0.9 dtex by adjusting the high-speed air flow for drawing, and adjusting the dispersion / opening device is made into a flat roll and an embossing roll (pattern specification: diameter 0. 425mm circular, staggered arrangement, crimping rate 6.3%, horizontal pitch 2.1mm, vertical pitch 1.1mm) and adjust the heat and pressure with temperature and linear pressure to make fine Bonded to each other to give a width 1.2 m, a spunbonded nonwoven fabric having a basis weight of 18 g / m 2. Table 1 shows the physical properties of the obtained nonwoven fabric containing 1.0 wt% of glycerides of tetradecanoic acid.
［比較例１］
実施例１と同様のポリプロピレンを原料とし、柔軟剤マスターバッチを添加しなかった以外は実施例１と同様の方法で、平均単糸繊度２．０ｄｔｅｘ、目付１９ｇ／ｍ２のスパンボンド不織布を得た。得られた不織布の物性を表１に示した。
［比較例２］
実施例１と同様のポリプロピレンを原料とし、柔軟剤マスターバッチを添加しなかった以外は実施例１と同様の方法でラインスピードを調整し、目付を１７ｇ／ｍ２に調整して平均単糸繊度１．２ｄｔｅｘのスパンボンド不織布を得た。得られた不織布の物性を表１に示した。
[Comparative Example 1]
A spunbonded nonwoven fabric having an average single yarn fineness of 2.0 dtex and a basis weight of 19 g / m 2 is obtained in the same manner as in Example 1 except that the same polypropylene as in Example 1 is used as a raw material and no softener masterbatch is added. It was. Table 1 shows the physical properties of the obtained nonwoven fabric.
[Comparative Example 2]
The average single yarn fineness was adjusted by adjusting the line speed in the same manner as in Example 1 except that the same polypropylene as in Example 1 was used and no softener masterbatch was added, and the basis weight was adjusted to 17 g / m 2. A 1.2 dtex spunbond nonwoven was obtained. Table 1 shows the physical properties of the obtained nonwoven fabric.
［比較例３］
柔軟剤マスターバッチを添加しなかった以外は実施例１と同様の方法でラインスピードを調整し、目付を２５ｇ／ｍ２に調整して平均単糸繊度１．２ｄｔｅｘのスパンボンド不織布を得た。得られた不織布の物性を表１に示した。［比較例４］
実施例１と同様のポリプロピレンを原料とし、柔軟剤マスターバッチを添加しなかった以外は実施例２と同様の方法で、平均単糸繊度１．２ｄｔｅｘ、目付１８ｇ／ｍ２のスパンボンド不織布を得た。得られた不織布の物性を表１に示した。
[Comparative Example 3]
The line speed was adjusted in the same manner as in Example 1 except that the softener master batch was not added, and the basis weight was adjusted to 25 g / m 2 to obtain a spunbonded nonwoven fabric having an average single yarn fineness of 1.2 dtex. Table 1 shows the physical properties of the obtained nonwoven fabric. [Comparative Example 4]
A spunbonded nonwoven fabric having an average single yarn fineness of 1.2 dtex and a basis weight of 18 g / m 2 is obtained in the same manner as in Example 2 except that the same polypropylene as in Example 1 is used as a raw material and no softener master batch is added. It was. Table 1 shows the physical properties of the obtained nonwoven fabric.
［比較例５］
実施例１と同様のポリプロピレンを原料とし、柔軟剤マスターバッチを添加しなかった以外は実施例７と同様の方法で、平均単糸繊度０．９ｄｔｅｘ、目付１８ｇ／ｍ２のスパンボンド不織布を得た。得られた不織布の物性を表１に示した。
［比較例６］
実施例１と同様のポリプロピレンを原料とし、これに、予め、融点が５４〜５７℃の脂肪酸グリセリド（水添動植物油脂）を３０ｗｔ％添加したマスターバッチを５ｗｔ％混合したチップを使用し、実施例１と同様の方法で、平均単糸繊度２．０ｄｔｅｘ、目付１９ｇ／ｍ２のスパンボンド不織布を得た。得られた不織布の物性を表１に示した。
[Comparative Example 5]
A spunbonded nonwoven fabric having an average single yarn fineness of 0.9 dtex and a basis weight of 18 g / m 2 is obtained in the same manner as in Example 7 except that the same polypropylene as in Example 1 is used as a raw material and no softener master batch is added. It was. Table 1 shows the physical properties of the obtained nonwoven fabric.
[Comparative Example 6]
The same polypropylene as in Example 1 was used as a raw material, and a chip mixed with 5 wt% of a master batch to which 30 wt% of a fatty acid glyceride (hydrogenated vegetable oil and fat) having a melting point of 54 to 57 ° C. was previously added was used. 1 to obtain a spunbonded nonwoven fabric having an average single yarn fineness of 2.0 dtex and a basis weight of 19 g / m 2 . Table 1 shows the physical properties of the obtained nonwoven fabric.
衛生材料に用いられる吸収性物品の横漏れ防止のためのサイドギャザーや、足回り、ウエスト周りなどポリウレタン弾性糸等伸縮材料を張り合わせ用いられる使い捨てオムツのギャザー部用として有用なものである。 It is useful for gathers of disposable diapers where side gathers for preventing side leakage of absorbent articles used as sanitary materials, and elastic materials such as polyurethane elastic yarns such as underbody and waist are pasted together.
Claims (4)
（１） 曲げ柔軟度−１７．９５×（平均単糸繊度）−２．５４×（目付）＜１０ The bending flexibility (mm), basis weight (g / m 2 ), and average single yarn fineness (dtex) in the MD direction of the long-fiber nonwoven fabric satisfy the following formula (1): The long-fiber nonwoven fabric according to any one of the above.
(1) Flexural flexibility−17.95 × (average single yarn fineness) −2.54 × (weight per unit) <10
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| JP2007318345A Active JP4642063B2 (en) | 2007-12-10 | 2007-12-10 | Flexible long-fiber nonwoven fabric |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012021259A (en) * | 2011-04-06 | 2012-02-02 | Asahi Kasei Fibers Corp | Thermoplastic nonwoven fabric |
| JP2012021260A (en) * | 2011-04-06 | 2012-02-02 | Asahi Kasei Fibers Corp | Nonwoven fabric with excellent thermal stability and flexibility |
| JP2012072535A (en) * | 2010-08-30 | 2012-04-12 | Asahi Kasei Fibers Corp | Filament nonwoven fabric having flexibility |
| JP2016197087A (en) * | 2015-04-06 | 2016-11-24 | バンドー化学株式会社 | Capacitive sensor sheet and sensor device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6012190B2 (en) * | 2012-02-07 | 2016-10-25 | 旭化成株式会社 | Long fiber nonwoven fabric with excellent flexibility |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003220660A (en) * | 2002-01-31 | 2003-08-05 | Daio Paper Corp | Absorptive article with nonwoven fabric and method of manufacturing the same |
| JP2004250828A (en) * | 2003-02-20 | 2004-09-09 | Asahi Kasei Fibers Corp | Nonwoven fabric for disposable medical supply and method for producing the same |
| JP2006525440A (en) * | 2003-05-01 | 2006-11-09 | ジョンソン・アンド・ジョンソン・ゲーエムベーハー | Pattern sheet products |
-
2007
- 2007-12-10 JP JP2007318345A patent/JP4642063B2/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003220660A (en) * | 2002-01-31 | 2003-08-05 | Daio Paper Corp | Absorptive article with nonwoven fabric and method of manufacturing the same |
| JP2004250828A (en) * | 2003-02-20 | 2004-09-09 | Asahi Kasei Fibers Corp | Nonwoven fabric for disposable medical supply and method for producing the same |
| JP2006525440A (en) * | 2003-05-01 | 2006-11-09 | ジョンソン・アンド・ジョンソン・ゲーエムベーハー | Pattern sheet products |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012072535A (en) * | 2010-08-30 | 2012-04-12 | Asahi Kasei Fibers Corp | Filament nonwoven fabric having flexibility |
| JP2012021259A (en) * | 2011-04-06 | 2012-02-02 | Asahi Kasei Fibers Corp | Thermoplastic nonwoven fabric |
| JP2012021260A (en) * | 2011-04-06 | 2012-02-02 | Asahi Kasei Fibers Corp | Nonwoven fabric with excellent thermal stability and flexibility |
| WO2012137379A1 (en) * | 2011-04-06 | 2012-10-11 | 旭化成せんい株式会社 | Thermoplastic non-woven fabric |
| WO2012137378A1 (en) * | 2011-04-06 | 2012-10-11 | 旭化成せんい株式会社 | Non-woven fabric having superior heat stability and flexibility |
| CN103459695A (en) * | 2011-04-06 | 2013-12-18 | 旭化成纤维株式会社 | Non-woven fabric having superior heat stability and flexibility |
| JP2016197087A (en) * | 2015-04-06 | 2016-11-24 | バンドー化学株式会社 | Capacitive sensor sheet and sensor device |
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| JP4642063B2 (en) | 2011-03-02 |
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