JP2009174086A - Low-friction stretch nonwoven fabric - Google Patents
Low-friction stretch nonwoven fabric Download PDFInfo
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本発明はパップ用基材に用いる伸縮性不織布に係り、詳しくは貼り薬等を人体に貼付した場合、貼り薬の表面と、衣服や肌との間に起こる抵抗感や不快感を無くし、着用を円滑ならしめる低摩擦伸縮性不織布に関するものである。 The present invention relates to a stretchable nonwoven fabric used as a base material for pups, and more specifically, when a patch is applied to a human body, it eliminates the resistance and discomfort that occurs between the surface of the patch and the clothes and skin, and is worn. The present invention relates to a low-friction stretchable nonwoven fabric that smoothes the skin.
パップ剤などの基材には従来より短繊維からなる不織布が用いられているが、パップ剤は肩や背中など伸縮性が要求されない部位に貼付されるだけでなく、肘や関節など追従性が要求される部位にも貼付されるため近年、高い伸縮性を有する不織布（伸縮性不織布）の使用が進められて来た。（例えば特許文献１参照）
特許文献１は本出願人の提案に係るもので、パップ剤に用いる伸縮性不織布として熱収縮率の異なる熱可塑性樹脂を組み合わせた偏心芯鞘型繊維又はサイドバイサイド型繊維などの複合短繊維を用いた不織布をパップ剤の基材に用いることが開示され、該不織布に対し均一な印刷を可能とするためその物性を考究し、一方向における５％伸長回復率が３０％以上であり、直交方向における初期伸長弾性率が５Ｎ／５ｃｍ／１００℃以上の物性を有することが有効であることを提案している。
Patent Document 1 relates to the applicant's proposal, and used a composite short fiber such as an eccentric core-sheath fiber or a side-by-side fiber combined with thermoplastic resins having different thermal shrinkage rates as a stretchable nonwoven fabric used for a poultice. It is disclosed that a non-woven fabric is used as a base material for a poultice, and its physical properties are studied in order to enable uniform printing on the non-woven fabric, the 5% elongation recovery rate in one direction is 30% or more, and the orthogonal direction It has been proposed that it is effective to have a physical property of an initial elongation modulus of 5 N / 5 cm / 100 ° C. or higher.
しかし上記パップ用基材としての不織布は伸縮性不織布に均一な印刷面を施すことを目的としているため衣服や肌との接触において摩擦抵抗が大きく、その結果、動くことにより抵抗感や不快感を与えることは殆ど考慮されていない。そこで、本発明は上述の如き実状に着目し、特に身体に貼付しても服にまつわり着かず、着用がスムーズである伸縮性不織布の特性を探求し、これを見出すことによりパップ用基材として上記抵抗感，不快感の改善をはかることを目的とするものである。 However, the non-woven fabric as a base material for wrapping is intended to provide a uniform printed surface on the stretchable non-woven fabric, so the frictional resistance is large in contact with clothes and skin. Almost no consideration is given. Therefore, the present invention pays attention to the actual situation as described above, and in particular, searches for the characteristics of stretchable nonwoven fabric that does not cling to clothes even when applied to the body and is smooth to wear, and finds this to find a base material for pups. It aims at improving the above-mentioned resistance and discomfort.
即ち、上記目的を達成する本発明は、基本的に低摩擦係数を有する短繊維と捲縮性複合短繊維との混繊からなる不織布よりなり、該不織布の目付質量が５０ｇ／ｍ2〜２００ｇ／ｍ2の範囲で、５０％伸長応力が０．５〜２．５Ｎ／５ｃｍであり、かつ５０％伸長時の回復率が４０％以上で表面摩擦係数（Ｆμｓ）が１．４以下である低摩擦伸縮性不織布を特徴とする。 That is, the present invention that achieves the above object is composed of a nonwoven fabric basically composed of a mixture of short fibers having a low coefficient of friction and crimped composite short fibers, and the basis weight of the nonwoven fabric is 50 g / m 2 to 200 g. / M 2 , 50% elongation stress is 0.5 to 2.5 N / 5 cm, recovery rate at 50% elongation is 40% or more, and surface friction coefficient (F μs) is 1.4 or less. Features a low friction stretch nonwoven fabric.
請求項２は上記請求項１の変形態様として低摩擦係数を有する短繊維と捲縮性複合短繊維との混繊からなる単層体に対し、捲縮性複合短繊維よりなる混合ウエブ層を積層し、交絡一体化した不織布として前記各物性を具備せしめたものである。 In a second aspect of the present invention, as a modification of the first aspect, a mixed web layer composed of crimped composite short fibers is provided on a single layer composed of a mixture of short fibers having a low friction coefficient and crimped composite short fibers. Each of the above physical properties is provided as a laminated and entangled nonwoven fabric.
請求項３〜５は何れも上記構成を実施する上での好ましい態様であり、請求項３は低摩擦係数を有する短繊維がナイロン，ポリエステル，ポリエチレン，ポリプロピレンから選ばれた１種又は２種以上の短繊維を低摩擦係数処理したもの、または繊維自身低摩擦係数を有する短繊維であり、繊度が１．０〜１０．０デシテックス（ｄｔｅｘ）、摩擦係数が０．０５〜０．２０μｓであること、請求項４は捲縮性複合短繊維がナイロン，ポリエステル，ポリエチレン，ポリプロピレンから選ばれた１種または２種以上の高融点成分と低融点成分の６０／４０〜４０／６０配合の複合よりなる繊度１．０〜１０．０デシテックス（ｄｔｅｘ）の短繊維であること、そして請求項５は上記の低摩擦係数を有する短繊維と、捲縮性複合短繊維の混繊における低摩擦係数短繊維の混繊比率が１０〜７０質量％の範囲であることである。 Claims 3 to 5 are all preferable embodiments for carrying out the above configuration, and Claim 3 is one or more kinds in which the short fiber having a low friction coefficient is selected from nylon, polyester, polyethylene, and polypropylene. A short fiber having a low friction coefficient, or a fiber itself having a low friction coefficient, a fineness of 1.0 to 10.0 dtex, and a friction coefficient of 0.05 to 0.20 μs. According to claim 4, the crimpable composite short fiber is a composite of 60/40 to 40/60 containing one or more high melting point components and low melting point components selected from nylon, polyester, polyethylene and polypropylene. A short fiber having a fineness of 1.0 to 10.0 dtex, and claim 5 is a mixture of the short fiber having the low friction coefficient and the crimped composite short fiber. Kicking commingled ratio of the low friction coefficient short fibers is in the range of 10 to 70 wt%.
上記低摩擦係数短繊維及び捲縮性複合短繊維を所要配合で混繊し、単層体又は捲縮性複合短繊維層と積層して使用し、所定の特性を具備せしめることにより、パップ用基材不織布としての目標である身体に貼付しても服にまつわり付かず、着用感がよく、抵抗感の少ない伸縮性不織布を得ることができる。 The above-mentioned low friction coefficient short fibers and crimped composite short fibers are mixed with the required composition and used by laminating with a single layer or a crimped composite short fiber layer, and having predetermined characteristics, for pap Even if it is affixed to the body, which is the target as a base nonwoven fabric, it does not cling to clothes, and a stretchable nonwoven fabric with a good feeling of wear and a little resistance can be obtained.
上記本発明伸縮性不織布は低摩擦係数短繊維を捲縮性複合短繊維と混繊し、所要の特性を有するため、パップ用基材として身体に貼付したとき衣服等との摩擦が低く、着用感を阻害することがなく、また身体を動かしたとき抵抗感もなく、しかも捲縮を生かしたソフト感を有し、使用時の形態保持性も良好である等の諸効果を有している。 The elastic nonwoven fabric of the present invention is a low-coefficient-coefficient short fiber mixed with crimped composite short fiber, and has the required characteristics. It has various effects such as no hindrance, no resistance when moving the body, softness that makes use of crimp, and good shape retention during use. .
以下、更に上記本発明について詳細に説明する。パップ基材としての不織布はパップを身体に着けたとき、布との摩擦が低いこと、身体を動かしたとき抵抗感がないことが求められる。そのためには先ず伸縮性不織布であることが肝要であり、しかも伸縮性を活かすためには余り厚すぎては好ましくなく、と云って薄すぎては透けた感じとなるため、目付質量が５０〜２００ｇ／ｍ2，厚さ０．３ｍｍ〜２．０ｍｍのものが好適な範囲として選ばれる。 Hereinafter, the present invention will be described in detail. Nonwoven fabric as a pup base material is required to have low friction with the cloth when the pup is worn on the body, and no resistance when the body is moved. For that purpose, it is essential that it is a stretchable nonwoven fabric. To make use of stretchability, it is not preferable that it is too thick, but if it is too thin, it feels transparent, so the weight per unit area is 50 to 50. A film having a thickness of 200 g / m 2 and a thickness of 0.3 mm to 2.0 mm is selected as a suitable range.
本発明は上記好ましい目付質量，厚さに基づいて衣服着用に際し、衣服にまつわり付かず、スムーズな着用を可能とする伸縮性不織布の特性を追求したものであり、５０％伸長応力を０．５〜２．０Ｎ／５ｃｍの範囲、５０％伸長回復率が４０％以上、伸縮性不織布の表面摩擦係数（Ｆμｓ）が１．４以下が優れた効果を有することを見出すに至った。ここで、先ず本発明伸縮性不織布はその特徴として伸縮性を具有するため通常使用される捲縮性複合短繊維に低摩擦係数を有する短繊維を混繊することにより構成される。 The present invention pursues the characteristics of a stretchable nonwoven fabric that does not cling to clothes and allows smooth wear based on the preferred weight per unit area and thickness. It has been found that a range of 5 to 2.0 N / 5 cm, a 50% elongation recovery rate of 40% or more, and a surface friction coefficient (Fμs) of the stretchable nonwoven fabric of 1.4 or less have excellent effects. Here, the stretchable nonwoven fabric of the present invention is formed by blending staple fibers having a low coefficient of friction with crimped composite staple fibers that are usually used because they have stretchability as a feature.
捲縮性複合短繊維は融点が異なる熱可塑性樹脂をサイドバイサイド、または偏心芯鞘型、あるいは自然捲縮により組み合わせた複合短繊維よりなり、サイドバイサイド型または偏心芯鞘型複合短繊維は熱処理により低融点樹脂が大きく収縮してスパイラル状又はコイル状に捲縮して不織布に高い伸縮性を与えることができる。しかし、捲縮性複合短繊維をパップ用基材として用いたとき、布に対して摩擦抵抗が大きく、布にまつわり付きが起こりやすく抵抗感を感じるため、その表面を低摩擦抵抗化するために低摩擦コーティングすることが考えられるが、その場合、表面が膜状を呈しては本来の伸縮性不織布の伸縮性が損なわれて硬いものとなり、所望の効果が得られない。そこで本発明においては低摩擦係数を有する短繊維が混繊される。 Crimpable composite short fibers are composed of composite short fibers obtained by combining thermoplastic resins with different melting points in a side-by-side or eccentric core-sheath type or natural crimp, and side-by-side or eccentric core-sheath type composite short fibers have a low melting point by heat treatment. The resin can be greatly shrunk and crimped into a spiral or coil shape to give the nonwoven fabric high stretchability. However, when crimped composite short fibers are used as a base material for pups, the friction resistance of the fabric is large and the fabric tends to clutter, so that the resistance is felt. However, in this case, if the surface exhibits a film shape, the stretchability of the original stretchable nonwoven fabric is impaired and hard, and the desired effect cannot be obtained. Therefore, in the present invention, short fibers having a low friction coefficient are mixed.
捲縮性複合短繊維に使用される熱可塑性樹脂は、特に限定はないが、ポリエステル，ナイロン，ポリプロピレン，ポリエチレンの何れか１種、または２種以上であることが好ましく、例えばポリエステル系樹脂，ポリエチレン系樹脂，ポリプロピレン系樹脂，ポリアミド系樹脂の何れかの熱可塑性樹脂の高融点成分と低融点成分からなる偏心芯鞘型、サイドバイサイド型構造によって複合短繊維が形成される。 The thermoplastic resin used for the crimped composite short fiber is not particularly limited, but is preferably one or more of polyester, nylon, polypropylene, and polyethylene. For example, polyester resin, polyethylene A composite short fiber is formed by an eccentric core-sheath type or side-by-side type structure composed of a high melting point component and a low melting point component of any one of a thermoplastic resin, a polypropylene resin, and a polyamide resin.
具体例としては、ポリエステル繊維（融点２５０℃〜２７０℃程度）と低融点ポリエステル繊維（融点１００℃〜１５０℃程度）の複合短繊維、エステル／ナイロン複合短繊維、ポリエステル／ポリエチレン複合短繊維、ポリプロピレン／ポリエチレン複合短繊維等が上げられ、特に高融点ポリエステルと、低融点ポリエステルとの複合短繊維は最も実用的である。この場合、高融点成分と低融点成分との組成比率は６０：４０〜４０：６０が一般的であり、繊維の繊度は１．０〜１０．０デシテックスが好適である。 Specific examples include composite short fibers of polyester fibers (melting point of about 250 ° C. to 270 ° C.) and low melting point polyester fibers (melting point of about 100 ° C. to 150 ° C.), ester / nylon composite short fibers, polyester / polyethylene composite short fibers, polypropylene. / Polyethylene composite short fibers and the like are raised, and in particular, composite short fibers of high melting point polyester and low melting point polyester are most practical. In this case, the composition ratio of the high melting point component and the low melting point component is generally 60:40 to 40:60, and the fineness of the fiber is preferably 1.0 to 10.0 dtex.
一方、低摩擦係数短繊維はポリエステル，ナイロン，ポリエチレン，ポリプロピレン各繊維より選ばれた１種または２種以上の短繊維よりなり、通常、繊維を低摩擦係数処理した短繊維、例えば表面にシリコン皮膜が形成された短繊維あるいは繊維自体低摩擦係数を有する短繊維である。 On the other hand, the low-friction coefficient short fiber is composed of one or more short fibers selected from polyester, nylon, polyethylene, and polypropylene fibers, and is usually a short fiber obtained by treating the fiber with a low friction coefficient, such as a silicon film on the surface. Is a short fiber having a low coefficient of friction.
この繊維の繊度は１．０〜１０．０デシテックスが好ましく、摩擦係数（μｓ）は０．０５〜０．２０の範囲が実用的である。低摩擦伸縮性不織布に用いられる短繊維の繊度は上述の如く何れも１．０〜１０．０デシテックスの範囲が選ばれるが、１デシテックス未満では繊維層が緻密になり、一方、１０デシテックスを超えると反対に繊維層は粗くなり、何れもパップ用基材には適しない。 The fineness of this fiber is preferably 1.0 to 10.0 dtex, and the friction coefficient (μs) is practically in the range of 0.05 to 0.20. As described above, the fineness of the short fibers used for the low-friction stretchable nonwoven fabric is selected in the range of 1.0 to 10.0 dtex, but if it is less than 1 dtex, the fiber layer becomes dense, while it exceeds 10 dtex. On the other hand, the fiber layer becomes rough, and none of them is suitable for a base material for pups.
本発明伸縮性不織布は上記捲縮性複合短繊維と摩擦係数が０．２以下の上記低摩擦係数短繊維を混繊し、これら混繊からなるウエブ（Ａ）または捲縮性複合短繊維からなるウエブ（Ｂ）を夫々カード処理し、図１に示すようにウエブ（Ａ）単層か、ウエブ（Ａ）とウエブ（Ｂ）を積層してニードル加工を施して繊維間の交絡あるいはウエブ間の交絡を行い、単層体あるいは積層体を得て低摩擦化された単層体あるいは積層体を熱処理機で熱処理して捲縮を発現させ、随時、熱ロールを通して不織布の厚さ調整を行って低摩擦伸縮性不織布に形成される。 The stretchable nonwoven fabric of the present invention is obtained by mixing the crimped composite short fiber and the low friction coefficient short fiber having a friction coefficient of 0.2 or less, and from the web (A) or the crimped composite short fiber made of the mixed fiber. Each web (B) is carded, and as shown in FIG. 1, the web (A) single layer or the web (A) and the web (B) are laminated and subjected to needle processing to interlace the fibers or between the webs. In order to obtain a single layer or laminated body and to reduce the friction, the single layer or laminated body is heat treated with a heat treatment machine to develop crimps, and the thickness of the nonwoven fabric is adjusted through a hot roll as needed. And formed into a low friction stretchable nonwoven fabric.
なお、この低摩擦伸縮性不織布のウエブ構成としては表皮側に低摩擦を呈するように配置することが好ましい。そして、単層で捲縮性短繊維に低摩擦係数短繊維を混繊する場合は、低摩擦係数短繊維が増加することにより伸縮性能が損なわれるため、低摩擦係数短繊維の混繊割合は制限される。その混繊範囲は好ましくは１０質量％〜７０質量％である。混繊量が１０質量％未満では不織布の表面摩擦係数が高くなるので好ましくなく、混繊量が７０質量％を超えると５０％応力は繊維間の透抜けがあり応力は低いが回復が劣るので好ましくない。 In addition, as a web structure of this low friction stretchable nonwoven fabric, it is preferable to arrange | position so that low friction may be exhibited on the skin side. And when blending low-friction coefficient short fibers with crimpable short fibers in a single layer, the stretch performance is impaired by increasing the low friction coefficient short fibers, so the blend ratio of the low friction coefficient short fibers is Limited. The mixed fiber range is preferably 10% by mass to 70% by mass. If the blended amount is less than 10% by mass, the surface friction coefficient of the nonwoven fabric is increased, which is not preferable. If the blended amount exceeds 70% by mass, the 50% stress has penetration through the fibers and the stress is low but the recovery is poor. It is not preferable.
一方、低摩擦係数短繊維が増えることにより、伸縮性能が損なわれる方向にあるので、その性能が損なわれるのを補うために二層構造として表面層に低摩擦係数短繊維を含んだ層を配し、内層に捲縮性短繊維を主体とした層を配して構成することにより、単層の場合の低摩擦係数短繊維による性能低下が補われると共に低摩擦係数短繊維量を少なくできることによりコスト低減も図れるので好ましい。二層の場合の低摩擦係数の混繊量は１０質量％〜８０質量％がよい。混繊量は１０質量％未満では不織布表面摩擦係数が高くなり好ましくなく、混繊量は８０質量％を超えると当然、表面の摩擦係数は低いが表面の繊維間の透抜けが生じ易くなり、表面が汚くなる。下層の捲縮性繊維が５０％応力をカバーするが表面が汚いものとなるので好ましくない。 On the other hand, as the number of low-friction coefficient short fibers increases, the stretch performance tends to be impaired, so a layer containing low-friction coefficient short fibers is arranged on the surface layer as a two-layer structure to compensate for the loss of performance. In addition, by arranging a layer mainly composed of crimpable short fibers in the inner layer, the performance degradation due to the low friction coefficient short fibers in the case of a single layer can be compensated and the amount of low friction coefficient short fibers can be reduced. This is preferable because the cost can be reduced. The mixing amount of the low friction coefficient in the case of two layers is preferably 10% by mass to 80% by mass. When the blending amount is less than 10% by mass, the surface friction coefficient of the nonwoven fabric is high, which is not preferable. When the blending amount exceeds 80% by mass, naturally, the surface friction coefficient is low, but penetration between the fibers on the surface tends to occur. The surface becomes dirty. Although the underlying crimpable fiber covers 50% stress, it is not preferable because the surface becomes dirty.
なお、パップ用基材の低摩擦伸縮性不織布の目付質量は５０〜２００ｇ／ｍ2、厚さは０．３〜２．０ｍｍが好ましく、５０ｇ／ｍ2未満では効果に欠け、２００ｇ／ｍ2を超えれば厚すぎて伸縮性を活かし切れないので好ましくない。また、厚さは０．３ｍｍ未満では僅かの変形量で薄くなるので良くなく、一方２．０ｍｍを超えると捲縮を生かしたソフトなものを得ることが難しいので０．３〜２．０ｍｍが好適である。 Incidentally, the basis weight mass of low friction stretchable nonwoven fabric of the poultice base material is 50 to 200 g / m 2, has a 0.3~2.0mm preferably thick, lacks effect is less than 50g / m 2, 200g / m 2 If it exceeds 1, it will be too thick and it will not be possible to make full use of the elasticity, which is not preferable. Also, if the thickness is less than 0.3 mm, it is not good because it becomes thin with a slight amount of deformation. On the other hand, if it exceeds 2.0 mm, it is difficult to obtain a soft product utilizing crimps, so 0.3 to 2.0 mm. Is preferred.
本発明低摩擦伸縮性不織布は上記範囲にもとづいてパップ材基材として効果的な特性、即ち、５０％伸長応力，５０％伸長回復率，表面摩擦係数の各特性を有するものである。
５０％伸長応力は低い程、身体に貼付した時の抵抗感が少なく、０．５〜２．５Ｎ／５ｃｍの範囲が使用される。５０％伸長応力が０．５Ｎ／５ｃｍ未満では、湿布薬を加工する工程で抗力が弱いため塗布がし難く加工性が劣る。一方、５０％伸長応力が２．５Ｎ／５ｃｍを超えると身体に貼付したとき、不織布の抵抗感が強く、違和感を感じるようになるので好ましくない。従って上記０．５〜２．５Ｎ／５ｃｍが好適である。
The low-friction stretchable nonwoven fabric of the present invention has properties effective as a poultice base material based on the above ranges, that is, properties of 50% elongation stress, 50% elongation recovery rate, and surface friction coefficient.
The lower the 50% elongation stress is, the less resistance is felt when applied to the body, and a range of 0.5 to 2.5 N / 5 cm is used. When the 50% elongation stress is less than 0.5 N / 5 cm, since the drag is weak in the process of processing the poultice, it is difficult to apply and the workability is poor. On the other hand, if the 50% elongation stress exceeds 2.5 N / 5 cm, the non-woven fabric has a strong resistance and a sense of incongruity when applied to the body, which is not preferable. Therefore, the above 0.5 to 2.5 N / 5 cm is preferable.
一方、５０伸長時の回復率は高ければ高いほどよく、４０％未満であると貼付中に身体の伸縮に応じた不織布の変形後の回復が不充分となり、たるみを生じ着用感が不快となるので少なくとも４０％以上であることが好ましい。そして、不織布を身体に貼付した状態で衣服を着用した場合、不織布との間で表面摩擦係数（Ｆμｓ）が１．４以下であることが好ましく、１．４以上であると衣服とのまつわりが大きくなり、衣服が引きつりを起こし、着用感が悪くなる。 On the other hand, the higher the recovery rate at 50 elongation, the better, and if it is less than 40%, the recovery after deformation of the nonwoven fabric in accordance with the stretching of the body becomes insufficient during application, causing sagging and uncomfortable wearing feeling. Therefore, it is preferably at least 40% or more. And when clothes are worn with the nonwoven fabric applied to the body, the surface friction coefficient (Fμs) with the nonwoven fabric is preferably 1.4 or less, and if it is 1.4 or more, Becomes larger, the clothes are attracted, and the feeling of wearing becomes worse.
従って、本発明低摩擦伸縮性不織布は以上を総合し、全体として目付質量５０〜２００ｇ／ｍ2、厚さ０．３〜２．０ｍｍにおいて、５０％伸長応力が０．５〜２．５Ｎ／５ｃｍ、５０％伸長回復率が４０％以上、伸縮性不織布の表面摩擦係数が１．４以下の特性が具有される。 Therefore, the low-friction stretchable nonwoven fabric of the present invention combines the above, and the overall weight per unit area is 50 to 200 g / m 2 and the thickness is 0.3 to 2.0 mm. 5 cm, 50% elongation recovery rate is 40% or more, and the surface friction coefficient of the stretchable nonwoven fabric is 1.4 or less.
以下更に本発明の実施例を比較例と共に説明する。 Examples of the present invention will be described below together with comparative examples.
実施例１
繊度２．２デシテックス、繊維長５１ｍｍの繊維−繊維間の靜摩擦係数μｓが０．３１０のポリエステル／低融点ポリエステル複合短繊維（低融点ポリエステルの融点：２５０℃）８０質量％と、繊度２．２デシテックスで繊維長５１ｍｍの表面にシリコンを被覆した繊維−繊維間の靜摩擦係数μｓが０．１５１のポリエステル繊維（融点：２６２℃）短繊維２０質量％を均一混合して（目付質量６２ｇ／ｍ2）、次いで、カーディング加工を施し均一なウエブ（Ａ１）を得た。次に針深さで１０ｍｍ打ち込み本数１１０本／ｃｍ2のニードル加工をし、引き続き連続して熱処理機で温度１７０℃、滞留時間３０秒間の捲縮発現処理を行なった。得られた不織布は高伸縮性で目付質量が９４ｇ／ｍ2、厚さが０．８８ｍｍであった。
Example 1
80% by mass of polyester / low melting point polyester composite short fiber (melting point of low melting point polyester: 250 ° C.) having a fineness of 2.2 decitex and a fiber-fiber wrinkle friction coefficient μs of 51 mm and a fiber length of 51 mm, and a fineness of 2.2 Polyester fiber (melting point: 262 ° C.) with a friction coefficient μs of 0.151 between fibers coated with silicon on the surface of a fiber length of 51 mm by decitex and uniformly mixed with 20 mass% of short fibers (weight per unit area: 62 g / m 2) Then, carding was performed to obtain a uniform web (A1). Next, the needle depth was 10 mm and the number of needles was 110 / cm 2 , and the crimping treatment was continuously performed with a heat treatment machine at a temperature of 170 ° C. and a residence time of 30 seconds. The resulting nonwoven fabric had a basis weight mass with high stretchability 94 g / m 2, the thickness was 0.88 mm.
実施例２
繊度２．２デシテックス、繊維長５１ｍｍの実施例１と同じポリエステル／低融点ポリエステル複合短繊維８０質量％と、繊度２．２デシテックスで繊維長５１ｍｍの表面にシリコンを被覆した繊維−繊維間の靜摩擦係数μｓが０．０８９のポリエステル繊維（融点：２６２℃）短繊維２０質量％を均一混合して（目付質量６０ｇ／ｍ2）、次いでカーディング加工を施し均一なウエブ（Ａ２）を得た。次に針深さで１０ｍｍ、打ち込み本数１１０本／ｃｍ2のニードル加工をし、引き続き連続して熱処理機で温度１７０℃、滞留時間３０秒間の捲縮発現処理を行なった。得られた不織布は高伸縮性で目付質量が９０ｇ／ｍ2、厚さが０．８４ｍｍであった。
Example 2
80% by mass of the same polyester / low-melting polyester composite short fiber having a fineness of 2.2 dtex and a fiber length of 51 mm, and friction between fibers and fibers in which silicon is coated on the surface of the fiber length of 51 mm at a fineness of 2.2 dtex Polyester fibers (melting point: 262 ° C.) having a coefficient μs of 0.089 were uniformly mixed (mass weight 60 g / m 2 ), and then carded to obtain a uniform web (A2). Next, needle processing was performed at a needle depth of 10 mm and the number of driven needles of 110 / cm 2 , and subsequently, crimping treatment was performed at a temperature of 170 ° C. and a residence time of 30 seconds using a heat treatment machine. The obtained non-woven fabric was highly stretchable, the basis weight was 90 g / m 2 , and the thickness was 0.84 mm.
実施例３
繊度２．２デシテックス、繊維長５１ｍｍの実施例１と同じポリエステル／低融点ポリエステル複合短繊維７０質量％と、繊度２．２デシテックスで繊維長５１ｍｍの表面にシリコンを被覆した繊維−繊維間の靜摩擦係数μｓが０．１５１のポリエステル繊維（融点）：２６２℃）短繊維３０質量％を均一混合して（目付質量３１ｇ／ｍ2）、次いで、カーディング加工を施し均一なウエブ（Ａ３）を得た。また、繊度２．２デシテックス、繊維長５１ｍｍの実施例１と同じポリエステル／低融点ポリエステル複合短繊維１００質量％を均一開繊して（目付質量％３１ｇ／ｍ2）、次いで、カーディング加工を施し均一なウエブ（Ｂ３）を得た。次にウエブＡ３とウエブＢ３を重ね合わせてウエブＡ３からウエブＢ３に向けて針深さで１０ｍｍ、打ち込み本数１１０本／ｃｍ2のニードル加工をし、引き続き連続して熱処理機で温度１７０℃、滞留時間３０秒間の捲縮発現処理を行なった。得られた不織布は高伸縮性で目付質量が９４ｇ／ｍ2で厚さが０．９５ｍｍであった。
Example 3
70% by mass of the same polyester / low-melting-point polyester composite short fiber having a fineness of 2.2 dtex and a fiber length of 51 mm, and friction between fibers and fibers in which silicon is coated on the surface of the fiber length of 51 mm with a fineness of 2.2 dtex Polyester fiber having a coefficient μs of 0.151 (melting point: 262 ° C.) 30% by mass of short fibers are uniformly mixed (weight per unit area 31 g / m 2 ), and then carded to obtain a uniform web (A3). It was. Further, 100% by mass of the same polyester / low-melting point polyester composite short fiber as in Example 1 having a fineness of 2.2 dtex and a fiber length of 51 mm was opened (weight per unit mass: 31 g / m 2 ), and then carding was performed. To obtain a uniform web (B3). Next, the web A3 and the web B3 are overlapped, the needle depth is 10 mm from the web A3 to the web B3, the needle depth is 110 needles / cm 2 , and the temperature is continuously maintained at 170 ° C. with a heat treatment machine. Crimp expression treatment was performed for 30 seconds. The obtained non-woven fabric was highly stretchable and had a mass per unit area of 94 g / m 2 and a thickness of 0.95 mm.
実施例４
繊度２．２デシテックス、繊維長５１ｍｍの実施例１と同じポリエステル／低融点ポリエステル複合短繊維７０質量％と、繊度２．２デシテックスで繊維長５１ｍｍの表面にシリコンを被覆した繊維−繊維間の靜摩擦係数μｓが０．１５１のポリエステル繊維（融点：２６２℃）短繊維３０質量％を均一混合して（目付質量２２ｇ／ｍ2）、次いで、カーディング加工を施し均一なウエブ（Ａ４）を得た。また、繊度２．２デシテックス、繊維長５１ｍｍの実施例１と同じポリエステル／低融点ポリエステル複合短繊維１００質量％均一開繊して（目付質量２２ｇ／ｍ2）、次いでカーディング加工を施し均一なウエブ（Ｂ４）を得た。次にウエブＡ４とウエブＢ４を重ね合わせてウエブＡ４からウエブＢ４に向けて針深さで９ｍｍ、打ち込み本数１２０本／ｃｍ2のニードル加工をし、引き続き連続して熱処理機で温度１６０℃、滞留時間３０秒間の捲縮発現処理を行なった。得られた不織布は高伸縮性で目付質量が６６ｇ／ｍ2で厚さが０．６１ｍｍであった。
Example 4
70% by mass of the same polyester / low-melting-point polyester composite short fiber having a fineness of 2.2 dtex and a fiber length of 51 mm, and friction between fibers and fibers in which silicon is coated on the surface of the fiber length of 51 mm with a fineness of 2.2 dtex Polyester fiber (melting point: 262 ° C.) having a coefficient μs of 0.151 was uniformly mixed (mass weight 22 g / m 2 ), and then carded to obtain a uniform web (A4). . Further, 100% by mass of the same polyester / low-melting point polyester composite short fiber as in Example 1 having a fineness of 2.2 decitex and a fiber length of 51 mm was opened (weight per unit area: 22 g / m 2 ). Web (B4) was obtained. Next, the web A4 and the web B4 are overlapped, the needle depth is 9 mm from the web A4 to the web B4, the needle depth is 120 needles / cm 2 , and the needle is continuously processed in a heat treatment machine at a temperature of 160 ° C. Crimp expression treatment was performed for 30 seconds. The obtained non-woven fabric was highly stretchable and had a mass per unit area of 66 g / m 2 and a thickness of 0.61 mm.
実施例５
繊度２．２デシテックス、繊維長５１ｍｍの実施例１と同じポリエステル／低融点ポリエステル複合短繊維３０質量％と、繊度２．２デシテックスで繊維長５１ｍｍの表面にシリコンを被覆した繊維−繊維間の靜摩擦係数μｓが０．１５１のポリエステル繊維（融点：２６２℃）短繊維７０質量％を均一混合して（目付質量３３ｇ／ｍ2）、次いで、カーディング加工を施し均一なウエブ（Ａ５）を得た。また、繊度２．２デシテックス、繊維長５１ｍｍの実施例１と同じポリエステル／低融点ポリエステル複合短繊維１００質量％均一開繊して、（目付質量３３ｇ／ｍ2）、次いで、カーディング加工を施し均一なウエブ（Ｂ５）を得た。次にウエブＡ５とウエブＢ５を重ね合わせてウエブＡ５からウエブＢ５に向けて針深さで１０ｍｍ、打ち込み本数１１０本／ｃｍ2のニードル加工をし、引き続き連続して熱処理機で温度１７０℃、滞留時間３０秒間の捲縮発現処理を行なった。得られた不織布は高伸縮性で目付質量が１０１ｇ／ｍ2で厚さが０．８３ｍｍであった。
Example 5
The same polyester / low melting point polyester composite short fiber 30% by mass as in Example 1 having a fineness of 2.2 dtex and a fiber length of 51 mm, and a fiber-fiber friction between a fiber having a fineness of 2.2 dtex and a fiber length of 51 mm coated with silicon Polyester fiber (melting point: 262 ° C.) with a coefficient μs of 0.151 was uniformly mixed (weight per unit area: 33 g / m 2 ), and then carded to obtain a uniform web (A5). . Further, 100% by mass of the same polyester / low-melting point polyester composite short fiber as in Example 1 having a fineness of 2.2 dtex and a fiber length of 51 mm was opened (weight per unit area: 33 g / m 2 ), and then carded. A uniform web (B5) was obtained. Next, the web A5 and the web B5 are overlapped, the needle depth is 10 mm from the web A5 to the web B5, and the number of driven needles is 110 / cm 2 , and the temperature is continuously maintained at 170 ° C. with a heat treatment machine. Crimp expression treatment was performed for 30 seconds. The obtained non-woven fabric was highly stretchable and had a mass per unit area of 101 g / m 2 and a thickness of 0.83 mm.
比較例１
繊度２．２デシテックス、繊維長５１ｍｍのポリエステル／低融点ポリエステル複合短繊維（低融点ポリエステルの融点：２５０℃）短繊維１００質量％を均一開繊して目付質量６７ｇ／ｍ2のウエブを得た。次にウエブに針深さ１０ｍｍ、打ち込み本数１１０本／ｃｍ2のニードル加工をし、引き続き連続して熱処理機で温度１７０℃、滞留時間３０秒間の捲縮発現処理を行なった。得られた不織布の目付質量は１００ｇ／ｍ2で厚さが０．７５ｍｍであった。
Comparative Example 1
100% by mass of a polyester / low melting point polyester composite short fiber having a fineness of 2.2 decitex and a fiber length of 51 mm (melting point of the low melting point polyester: 250 ° C.) short fiber was uniformly opened to obtain a web having a basis weight of 67 g / m 2 . . Next, needle processing was performed on the web at a needle depth of 10 mm and the number of driven needles of 110 / cm 2 , and subsequently a crimping treatment was performed in a heat treatment machine at a temperature of 170 ° C. and a residence time of 30 seconds. The obtained nonwoven fabric had a mass per unit area of 100 g / m 2 and a thickness of 0.75 mm.
比較例２
繊度２．２デシテックス、繊維長５１ｍｍの繊維−繊維間の靜摩擦係数μｓが０．３１０のポリエステル／低融点ポリエステル複合短繊維（低融点ポリエステルの融点：２５０℃）９５質量％と、繊度２．２デシテックスで繊維長５１ｍｍの表面にシリコンを被覆した繊維−繊維間の靜摩擦係数μｓが０．１５１のポリエステル繊維（融点：２６２℃）短繊維５質量％を均一混合して（目付質量７３ｇ／ｍ2）、次いでカーディング加工を施し均一なウエブ（Ａ６）を得た。次に針深さで１０ｍｍ、打ち込み本数１１０本／ｃｍ2のニードル加工をし、引き続き連続して熱処理機で温度１７０℃、滞留時間が３０秒間の捲縮発現処理を行なった。得られた不織布の目付質量は１０１ｇ／ｍ2で厚さが１．００ｍｍであった。
Comparative Example 2
95% by mass of a polyester / low-melting polyester composite short fiber (melting point of low-melting polyester: 250 ° C.) having a fineness of 2.2 decitex and a fiber-fiber wrinkle friction coefficient μs of 51 mm and a fiber length of 51 mm, and a fineness of 2.2 5% by mass of polyester fiber (melting point: 262 ° C.) short fiber having a friction coefficient μs of 0.151 between the fiber and fiber coated with silicon on the surface of fiber length 51 mm by decitex (weight per unit area 73 g / m 2) Then, carding was performed to obtain a uniform web (A6). Next, needle processing was performed with a needle depth of 10 mm and a driving number of 110 needles / cm 2 , and subsequently, a crimping treatment process was performed with a heat treatment machine at a temperature of 170 ° C. and a residence time of 30 seconds. The resulting nonwoven fabric had a basis weight of 101 g / m 2 and a thickness of 1.00 mm.
比較例３
繊度２．２デシテックス、繊維長５１ｍｍの繊維−繊維間の靜摩擦係数μｓが０．３１０のポリエステル／低融点ポリエステル複合短繊維（低融点ポリエステルの融点：２５０℃）３０質量％と繊度２．２デシテックスで繊維長５１ｍｍの表面にシリコンを被覆した繊維−繊維間の靜摩擦係数μｓが０．１５１のポリエステル繊維（融点：２６２℃）短繊維７０質量％を均一混合して（目付質量５３ｇ／ｍ2）、次いでカーディング加工を施し均一なウエブ（Ａ７）を得た。次に針深さで１０ｍｍ、打ち込み本数１１０本／ｃｍ2のニードル加工をし、引き続き連続して熱処理機で温度１７０℃、滞留時間３０秒間の捲縮発現処理を行なった。得られた不織布の目付質量は８０ｇ／ｍ2で厚さが０．８５ｍｍであった。
Comparative Example 3
Polyester / low melting point polyester composite short fiber (melting point of low melting point polyester: 250 ° C.) having a fineness of 2.2 decitex and a fiber-fiber wrinkle coefficient μs of 0.310 with a fiber length of 51 mm and a fineness of 2.2 decitex A polyester fiber (melting point: 262 ° C.) 70% by weight of a short fiber with a fiber-fiber friction coefficient μs of 0.151 coated with silicon on the surface of a fiber length of 51 mm was uniformly mixed (weight per unit area 53 g / m 2 ). Subsequently, carding was performed to obtain a uniform web (A7). Next, needle processing was performed at a needle depth of 10 mm and the number of driven needles of 110 / cm 2 , and subsequently, crimping treatment was performed at a temperature of 170 ° C. and a residence time of 30 seconds using a heat treatment machine. The resulting nonwoven fabric had a weight per unit area of 80 g / m 2 and a thickness of 0.85 mm.
比較例４
繊度２．２デシテックス、繊維長５１ｍｍのポリエステル／低融点ポリエステル複合短繊維（低融点ポリエステルの融点：２５０℃）短繊維１００質量％を均一開繊して目付質量５６ｇ／ｍ２のウエブを得た。次にウエブに針深さ１０ｍｍ、打ち込み本数１１０本／ｃｍ2のニードル加工をし、引き続き連続して熱処理機で温度１７０℃、滞留時間３０秒間の捲縮発現処理を行なった。得られた不織布の目付質量は９８ｇ／ｍ2で厚さが０．７９ｍｍであった。
Comparative Example 4
100% by mass of polyester / low-melting polyester composite short fiber having a fineness of 2.2 dtex and a fiber length of 51 mm (melting point of low-melting polyester: 250 ° C.) was uniformly spread to obtain a web having a mass of 56 g / m 2. Next, needle processing was performed on the web at a needle depth of 10 mm and the number of driven needles of 110 / cm 2 , and subsequently a crimping treatment was performed in a heat treatment machine at a temperature of 170 ° C. and a residence time of 30 seconds. The resulting nonwoven fabric had a weight per unit area of 98 g / m 2 and a thickness of 0.79 mm.
以上の各実施例，比較例を総括して表１にまとめ、各実施例，比較例で得た不織布について下記測定方法にもとづいて夫々、その特性を検出し、併せて着用感テストを行なった。その結果を表２に示す。
（測定方法）
目付質量：ｇ／ｍ2
試料から５００ｍｍ×５００ｍｍの試料片を切り出し、０．１ｇの単位まで質量を測定する。質量を４倍してｇ／ｍ２で表わす。試験片は同一試料から３つ用意し、その平均値を四捨五入し小数点以下２桁までで示す。
厚さ：ｍｍ
試料から５０ｍｍ×５０ｍｍの試料片を切り出し、接触面積５ｃｍ2、押し圧２０ｇのダイヤルゲージにて３点測定し、ｍｍで表わす。試験片は同一試料から３つ用意し、その平均値を四捨五入し、小数点以下２桁までで示す。
短繊維の摩擦係数、：μｓ
ＪＩＳ規格 ＪＩＳ Ｌ１０１５−８．１３に準拠して測定した。
The above Examples and Comparative Examples are summarized and summarized in Table 1, and the non-woven fabrics obtained in the Examples and Comparative Examples are each detected on the basis of the following measurement method, and a wearing feeling test is also performed. . The results are shown in Table 2.
(Measuring method)
Mass per unit area: g / m 2
A 500 mm × 500 mm sample piece is cut out from the sample, and the mass is measured to a unit of 0.1 g. The mass is multiplied by 4 and expressed in g / m2. Three test pieces are prepared from the same sample, and the average value is rounded off to the nearest two decimal places.
Thickness: mm
A 50 mm × 50 mm sample piece was cut out from the sample, measured at three points with a dial gauge having a contact area of 5 cm 2 and a pressing pressure of 20 g, and expressed in mm. Three test pieces are prepared from the same sample, and the average value is rounded off to the second decimal place.
Friction coefficient of short fiber, μs
Measured in accordance with JIS standard JIS L1015-8.13.
測定器 ：レーダー式摩擦試験機
円筒外径：８ｍｍ
計器：トウションバランス
靜摩擦係数（μｓ）＝０．７３３ ｌｏｇ（Ｗ／Ｗ−ｍ）
Ｗ：繊維の両端にかけた荷重（Ｎ）
ｍ：トウションバランスの読み（Ｎ）
５０％伸長応力：Ｎ／５ｃｍ
縦方向、横方向共に５ｃｍ×３０ｃｍの試料を同一の試料から３つ採取する。
Measuring instrument: Radar friction tester Cylinder outer diameter: 8mm
Instrument: Torsion balance 靜 Friction coefficient (μs) = 0.733 log (W / W-m)
W: Load applied to both ends of the fiber (N)
m: Reading of torsion balance (N)
50% elongation stress: N / 5cm
Three samples of 5 cm × 30 cm are taken from the same sample in both the vertical and horizontal directions.
東洋ボールドイン社製テンシロンを用い、掴み間隔２０ｃｍで引っ張り速度２０ｃｍ／ｍｉｎ１０ｃｍ点の応力を測定し、平均値で表す。
５０％伸長回復率：％
縦方向、横方向共に５ｃｍ×３０ｃｍの試料を同一の試料から３つ採取する。
Using Tensilon manufactured by Toyo Bald-In Co., Ltd., the stress at a pulling speed of 20 cm / min at 10 cm is measured at a grip interval of 20 cm, and is expressed as an average value.
50% elongation recovery rate:%
Three samples of 5 cm × 30 cm are taken from the same sample in both the vertical and horizontal directions.
東洋ボールドイン社製テンシロンを用い、掴み間隔２０ｃｍで引っ張り速度２０ｃｍ／ｍｉｎで５０％伸長し、同速で原点まで回復させたときの回復率を算出し、平均値で表す。
表面摩擦特性：Ｆμｓ
綿布（ダイヤモンドモス（倉敷紡績製）、目付質量１１２ｇ／ｍ2）を３０ｍｍ×５０ｍｍ角に貼り付け、滑り子を作成し、重さは０．２３ｇ／ｃｍ2に調節した。試料片を大きさ２００ｍｍ×１７０ｍｍに切り出し台紙に貼って試験台に図２に示す如く固定する。試料片の貼った試験台を水平にして滑り子を試験片の上に置き、３０ｍｍの片の中央に糸を固定し滑車を通じて０．４ｇ／ｃｍ2の荷重が掛かるようにする。滑車を中心にして試験台（ａ）を上に６０ｃｍ／分の速度で上げていき、滑り子が動き出す点の試験台の角度（θ）をはかる。試験片は同一の試料から３つ用意し、その平均値を求め下記式で表面摩
表面摩擦係数（Ｆμｓ）＝Ｔａｎ（θ）
着用感テスト
湿布薬を塗布した試料片をパネラー５名の膝に貼り付け、下記評価を行なった。
（１）ツッパリ性評価
膝を曲げたときに抵抗感がなく戻りがよい。 ○
膝を曲げたときにやや抵抗感があり、戻りがやや悪い。 △
膝を曲げたときにツッパリ感があり、戻りが悪い。 ×
（２）滑り易さ評価
着用服と試料片との間でまつわりがなく、抵抗なく動く。 ○
着用服と試料片との間でまつわりは少ないがやや抵抗あり。△
着用服と試料片との間で引っ掛かり、動きにくい。 ×
Using Tensilon manufactured by Toyo Bold-In Co., Ltd., the recovery rate is calculated when the gripping interval is 20 cm, the elongation is 50% at a pulling speed of 20 cm / min, and the origin is recovered at the same speed, and the average value is expressed.
Surface friction characteristics: Fμs
Cotton cloth (diamond moss (manufactured by Kurashiki Boseki Co., Ltd.), mass per unit area 112 g / m 2 ) was attached to a 30 mm × 50 mm square to create a slider, and the weight was adjusted to 0.23 g / cm 2 . A sample piece is cut into a size of 200 mm × 170 mm and pasted on a mount, and fixed to the test stand as shown in FIG. Place the slider on the test piece with the test piece affixed with the sample piece horizontal, fix the thread at the center of the 30 mm piece, and apply a load of 0.4 g / cm 2 through the pulley. The test table (a) is raised at a speed of 60 cm / min around the pulley, and the angle (θ) of the test table at the point where the slider starts to move is measured. Three test pieces are prepared from the same sample, the average value is obtained, and the surface friction coefficient of surface friction (Fμs) = Tan (θ)
Wearing test A sample piece coated with a poultice was attached to the knees of five panelists, and the following evaluation was performed.
(1) Evaluation of slipperiness When the knee is bent, there is no resistance and the return is good. ○
When the knee is bent, there is a slight resistance and the return is slightly worse. △
There is a crisp feeling when the knee is bent and the return is bad. ×
(2) Ease of slippage There is no mess between the clothes and the sample piece and it moves without resistance. ○
There is a little resistance between the clothes and the sample piece, but there is some resistance. △
It is caught between the clothes and the sample piece and is difficult to move. ×
以上のような着用感テストの結果、表１，表２に示すように本発明低摩擦伸縮性不織布は比較例に比しパップ用の基材として十分、優れていることが分かる。 As a result of the wearing feeling test as described above, as shown in Tables 1 and 2, it can be seen that the low-friction stretchable nonwoven fabric of the present invention is sufficiently superior as a base material for pap compared with the comparative example.
Claims (5)
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| JP2008014432A JP2009174086A (en) | 2008-01-25 | 2008-01-25 | Low-friction stretch nonwoven fabric |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021255972A1 (en) * | 2020-06-16 | 2021-12-23 | 東洋紡株式会社 | Stretchable capacitor |
| JP2022095700A (en) * | 2020-06-16 | 2022-06-28 | 東洋紡株式会社 | Elastic capacitor |
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| WO2021255972A1 (en) * | 2020-06-16 | 2021-12-23 | 東洋紡株式会社 | Stretchable capacitor |
| JP2021196286A (en) * | 2020-06-16 | 2021-12-27 | 東洋紡株式会社 | Elastic capacitor |
| JP2022091854A (en) * | 2020-06-16 | 2022-06-21 | 東洋紡株式会社 | Elastic capacitor |
| JP2022095700A (en) * | 2020-06-16 | 2022-06-28 | 東洋紡株式会社 | Elastic capacitor |
| JP7306519B2 (en) | 2020-06-16 | 2023-07-11 | 東洋紡株式会社 | elastic capacitor |
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