JP2006027900A - Rolled product - Google Patents

Rolled product Download PDF

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JP2006027900A
JP2006027900A JP2004365585A JP2004365585A JP2006027900A JP 2006027900 A JP2006027900 A JP 2006027900A JP 2004365585 A JP2004365585 A JP 2004365585A JP 2004365585 A JP2004365585 A JP 2004365585A JP 2006027900 A JP2006027900 A JP 2006027900A
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paper tube
roll
nonwoven fabric
paper
fibers
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JP4602065B2 (en
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Takao Hasegawa
孝夫 長谷川
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Japan Vilene Co Ltd
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Japan Vilene Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a suitable rolled product having no possibility that nonwoven fabric slides down from a paper pipe when carrying the rolled product by making the shaft of the paper pipe perpendicular and passing a shaft through the paper pipe to deliver the rolled product to a next process, in particular, regarding the rolled product made by winding nonwoven fabric including fibers revealing crimping of latent crimpable fibers on the paper pipe. <P>SOLUTION: This rolled product is made by winding the nonwoven fabric including the fibers revealing crimping of the latent crimpable fibers on the paper pipe. A distal end part of the winding start of the nonwoven fabric is in contact with the surface of the paper pipe. A coefficient of static friction of the nonwoven fabric and the surface of the paper pipe is ≥0.43. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、潜在捲縮性繊維の捲縮が発現した繊維を含む不織布が紙管に巻かれてなるロール状巻き物を、紙管の軸を垂直にして紙管にシャフトを通して次工程に送る際に、不織布が紙管から滑り落ちる恐れのない好適なロール状巻き物に関する。   In the present invention, when a roll-shaped roll obtained by winding a non-woven fabric containing fibers in which crimps of latent crimpable fibers are wound around a paper tube is sent to the next process through the shaft through the paper tube with the axis of the paper tube vertical. In particular, the present invention relates to a suitable roll-shaped roll in which there is no fear that the nonwoven fabric slides down from the paper tube.

従来より、図１に例示するように潜在捲縮性繊維の捲縮が発現した繊維を含む不織布２を紙管３に巻き取る場合、不織布に伸縮性があるため強い張力をかけると不織布が伸びてしまうため、紙やフィルムのように強い張力がかけられないという問題があった。また不織布が嵩高となるため紙やフィルムのように長くは巻けず、比較的短い巻きのロール状物１とならざるを得なかった。そこで次工程としてフィルムラミネートや印刷を行う場合、多量のロール状の巻き物を運搬する必要があり、手間のかかる作業となっていた。   Conventionally, as illustrated in FIG. 1, when the nonwoven fabric 2 including the fiber in which the crimp of the latent crimpable fiber is expressed is wound around the paper tube 3, the nonwoven fabric is stretched when a strong tension is applied because the nonwoven fabric is stretchable. Therefore, there is a problem that strong tension cannot be applied like paper and film. In addition, since the nonwoven fabric is bulky, it cannot be rolled for a long time like paper or film, and has to be a relatively short roll 1. Therefore, when film laminating or printing is performed as the next process, it is necessary to transport a large amount of roll-shaped rolls, which is a laborious operation.

そこで、このような作業を簡略化するため、図２に例示するようにロール状の巻き物１を縦置きにして巻き物の紙管３にシャフト５を矢印Ａの方向に通し、次いで図３に例示するように巻き物１が立った状態でシャフト５を矢印Ｂの方向に引き上げ、ロール状の巻き物１を持ち上げて運搬する方法が考え出された。なお、このシャフトは空気圧によってシャフトの一部を広げ、紙管を内側から把持するため、紙管とシャフトの間の滑りが生じない構造となっている。しかし、このような運搬方法では不織布の自重の外に、シャフトの引き上げ時の慣性力や、運搬時の振動などが加わり、不織布２が紙管３から時々滑り落ちるという問題が生じることが分かった。   Therefore, in order to simplify such work, as shown in FIG. 2, the roll-shaped roll 1 is placed vertically and the shaft 5 is passed through the paper tube 3 of the roll in the direction of arrow A, and then illustrated in FIG. Thus, a method has been devised in which the roll 1 is lifted in the direction of arrow B while the roll 1 is standing, and the roll-like roll 1 is lifted and transported. In addition, since this shaft expands a part of the shaft by air pressure and grips the paper tube from the inside, it has a structure in which the slip between the paper tube and the shaft does not occur. However, it has been found that in such a transporting method, in addition to the weight of the nonwoven fabric, inertia force when pulling up the shaft, vibration during transportation, and the like are added, and the nonwoven fabric 2 sometimes slides down from the paper tube 3.

紙管に巻き取られた巻き物については特開２００１−９７６４０号公報（特許文献１）に、紙管用原紙を螺旋状、且つ層状に巻回して形成された巻き取り軸芯用紙管であって、該紙管の少なくとも最表層が少なくとも１種の処理剤が塗布された紙で形成された巻き取り軸芯用紙管に、プラスチックフィルムをロール状に巻き取ったロール状巻き物が記載されている。また、該紙管の最表層とプラスチックフィルムとの摩擦角を１８〜４０度（静摩擦係数０．３３〜０．８４）とすることも記載されている。しかし、この公報ではロール状の巻き物は紙管を水平に保たれているにもかかわらず静止状態にあるフィルムが径時変化を起こして、巻き物の端面がずれる現象である一種の巻きズレを防止した技術であり、本発明における問題の解決を示唆するものではなかった。   Regarding a roll wound around a paper tube, JP-A-2001-97640 (Patent Document 1) discloses a winding shaft core paper tube formed by winding a paper tube base paper in a spiral and layered manner, A roll-shaped roll in which a plastic film is wound in a roll shape is described on a take-up shaft core paper tube formed of paper coated with at least one kind of treatment agent on at least the outermost layer of the paper tube. It is also described that the friction angle between the outermost layer of the paper tube and the plastic film is 18 to 40 degrees (static friction coefficient 0.33 to 0.84). However, in this publication, a roll-shaped roll prevents a kind of winding deviation, which is a phenomenon in which the film in a stationary state undergoes a change in time even though the paper tube is kept horizontal, and the end face of the roll is shifted. However, it did not suggest the solution of the problem in the present invention.

特開２００１−９７６４０号公報JP 2001-97640 A

本発明は上記の問題を解決し、潜在捲縮性繊維の捲縮が発現した繊維を含む不織布が紙管に巻かれてなるロール状巻き物に関し、特に次工程に送るため、紙管の軸を垂直にして紙管にシャフトを通して運搬する時に、不織布が紙管から滑り落ちる恐れのない好適なロール状巻き物を提供することを課題とする。   The present invention solves the above-described problem and relates to a roll-shaped roll obtained by winding a nonwoven fabric containing fibers in which crimps of latent crimpable fibers are expressed. It is an object of the present invention to provide a suitable roll-shaped roll in which there is no fear that the nonwoven fabric slides down from the paper tube when it is conveyed vertically through the shaft to the paper tube.

本発明の不織布にかかる解決手段は、図１に例示するように潜在捲縮性繊維の捲縮が発現した繊維を含む不織布２が紙管３に巻かれてなるロール状巻き物１であって、前記不織布の巻き初めの先端部は前記紙管の表面に接しており、前記不織布と前記紙管の表面との静摩擦係数が０．４３以上であることを特徴とするロール状巻き物１である。   The solution for the nonwoven fabric of the present invention is a roll-shaped roll 1 in which a nonwoven fabric 2 containing fibers in which crimps of latent crimpable fibers are expressed as shown in FIG. The leading end of the nonwoven fabric is in contact with the surface of the paper tube, and the roll-shaped roll 1 has a coefficient of static friction between the nonwoven fabric and the surface of the paper tube of 0.43 or more.

本発明によって、潜在捲縮性繊維の捲縮が発現した繊維を含む不織布が紙管に巻かれてなるロール状巻き物に関し、特に次工程に送るため、紙管の軸を垂直にして紙管にシャフトを通して運搬する時に、不織布が紙管から滑り落ちる恐れのない好適なロール状巻き物を提供することが可能となった。   According to the present invention, a roll-shaped roll in which a non-woven fabric containing fibers in which crimps of latent crimpable fibers are expressed is wound around a paper tube. It has become possible to provide a suitable roll-shaped roll in which the non-woven fabric is not likely to slide off the paper tube when transported through the shaft.

以下、本発明にかかるロール状巻き物の好ましい実施の形態について詳細に説明する。   Hereinafter, preferred embodiments of the roll-shaped roll according to the present invention will be described in detail.

本発明における不織布は、通常不織布の製法として知られる例えば乾式法、湿式法、スパンボンド法などによって得られる不織布を適用することができる。このうち、乾式法であれば、カード機で開繊可能なように繊維に予めクリンプ加工がなされており、その結果嵩高い不織布が得られ、貼付薬基布などの衛生材料用途に適した不織布が得られる。   As the nonwoven fabric in the present invention, a nonwoven fabric obtained by, for example, a dry method, a wet method, a spun bond method or the like, which is generally known as a method for producing a nonwoven fabric, can be applied. Among these, if it is a dry method, the fiber is crimped in advance so that it can be opened with a card machine. As a result, a bulky nonwoven fabric is obtained, and the nonwoven fabric is suitable for hygiene material applications such as a patch base fabric. Is obtained.

不織布に使用される繊維は、ポリエチレンテレフタレート、ポリブチレンテレフタレートなどのポリエステル系繊維、ナイロン６、ナイロン６６などのポリアミド系繊維、ポリプロピレン、ポリエチレンなどのポリオレフィン系繊維、ポリアクリロニトリルなどのアクリル系繊維、ビニロン繊維および合成パルプなどの合成繊維に限らず、レーヨンなどの半合成繊維、あるいは綿などの天然繊維をあげることができる。   The fibers used in the nonwoven fabric are polyester fibers such as polyethylene terephthalate and polybutylene terephthalate, polyamide fibers such as nylon 6 and nylon 66, polyolefin fibers such as polypropylene and polyethylene, acrylic fibers such as polyacrylonitrile, and vinylon fibers. In addition to synthetic fibers such as synthetic pulp, semi-synthetic fibers such as rayon, or natural fibers such as cotton can be used.

本発明では、前記不織布は潜在捲縮性繊維の捲縮が発現した繊維を含むことが必要である。潜在捲縮性繊維としては、融点の異なる複数の樹脂が複合された複合繊維や、繊維の一部に特定の熱履歴を施した繊維が適用できる。複合繊維は、例えば偏心型の芯鞘構造のものや、サイドバイサイド型の複合繊維が好適である。融点の異なる樹脂の組み合わせとして、ポリエステル−低融点ポリエステル、ポリアミド−低融点ポリアミド、ポリエステル−ポリアミド、ポリエステル−ポリプロピレン、ポリプロピレン−低融点ポリプロピレン、ポリプロピレン−ポリエチレンなど種々の合成樹脂を組み合わせたものが適用できる。特に、ポリエステル−低融点ポリエステル若しくはポリプロピレン−低融点ポリプロピレンの組み合わせからなる潜在捲縮性繊維は、化学的な耐性と伸度特性の点で優れており好ましい。また、繊維の一部に特定の熱履歴を施した潜在捲縮性繊維としては、例えば熱刃などにポリエステル、ポリアミド、ポリアクリルなどの熱可塑性樹脂からなる繊維の一側面をあてながら通過させたものが適用可能である。   In the present invention, it is necessary that the nonwoven fabric includes fibers in which crimps of latent crimpable fibers are expressed. As the latent crimpable fiber, a composite fiber in which a plurality of resins having different melting points are combined, or a fiber having a specific heat history applied to a part of the fiber can be applied. As the conjugate fiber, for example, an eccentric core-sheath structure or a side-by-side conjugate fiber is suitable. A combination of various synthetic resins such as polyester-low melting point polyester, polyamide-low melting point polyamide, polyester-polyamide, polyester-polypropylene, polypropylene-low melting point polypropylene, polypropylene-polyethylene can be applied as a combination of resins having different melting points. In particular, latent crimpable fibers made of a combination of polyester-low-melting polyester or polypropylene-low-melting polypropylene are preferable in terms of chemical resistance and elongation characteristics. In addition, as a latent crimpable fiber having a specific thermal history applied to a part of the fiber, for example, it was passed through a hot blade while applying one side of a fiber made of a thermoplastic resin such as polyester, polyamide, polyacryl, etc. Things are applicable.

前記不織布に含まれる潜在捲縮性繊維は捲縮が発現している。このような不織布を得るには、前記潜在捲縮性繊維を含む繊維ウエブを、不織布の各製法に応じたウエブ形成手段によって得た後、係る繊維ウエブに対して、ニードルパンチ法や高圧水流絡合法といった絡合手段を併用することが好ましい。次いで、潜在捲縮性繊維の捲縮を発現させるため、前記繊維ウエブに加熱処理を施す。その手段としては、熱風ドライヤー、赤外線ランプ、加熱ロールなど従来知られている装置を利用することができるが、筐体内を所定の温度環境に制御し、この筐体内を繊維ウエブが通過することによって安定した熱処理を行い得る方法および装置が望ましい。   The latent crimpable fiber contained in the nonwoven fabric is crimped. In order to obtain such a nonwoven fabric, a fiber web containing the latent crimpable fiber is obtained by a web forming means corresponding to each production method of the nonwoven fabric, and then the needle punch method or high-pressure water current is applied to the fiber web. It is preferable to use an entanglement means such as legal. Next, the fiber web is subjected to heat treatment in order to develop the crimp of the latent crimpable fiber. As the means, a conventionally known device such as a hot air dryer, an infrared lamp, or a heating roll can be used. However, the inside of the housing is controlled to a predetermined temperature environment, and the fiber web passes through the inside of the housing. A method and apparatus capable of performing a stable heat treatment is desirable.

本発明では前記不織布は、捲縮が発現した潜在捲縮性繊維を５０質量％以上含んでおり、望ましくは８０質量％以上含んでおり、１００質量％含むことも可能である。また前記不織布の面密度は用途に応じて設計することができるが、例えば貼付薬基布として用いる場合には、基布の均一性を良好とするために４０〜１５０ｇ／ｍ２とするのが好ましく、６０〜１２０ｇ／ｍ２とするのがより好ましい。また厚さは０．５ｍｍ〜２．０ｍｍとするのが好ましい。また貼付薬基布として患者動作の自由度を確保するために、５０％伸長時強さをタテ方向とヨコ方向の算術平均で３．５Ｎ／５０ｍｍ以下とするのが好ましく、３．０Ｎ／５０ｍｍ以下とするのがより好ましい。 In the present invention, the nonwoven fabric contains 50% by mass or more of latent crimpable fibers in which crimps are expressed, desirably 80% by mass or more, and may contain 100% by mass. Moreover, although the surface density of the said nonwoven fabric can be designed according to a use, when using, for example as a patch base fabric, it is 40-150 g / m < 2 > in order to make the uniformity of a base fabric favorable. 60 to 120 g / m 2 is more preferable. The thickness is preferably 0.5 mm to 2.0 mm. Moreover, in order to ensure the degree of freedom of patient movement as a patch base fabric, the 50% elongation strength is preferably 3.5 N / 50 mm or less in terms of arithmetic average in the vertical and horizontal directions, and is 3.0 N / 50 mm. The following is more preferable.

本発明における紙管は、通常不織布や紙またはフィルム等を巻き取るために使用される円筒体からなる巻き取り軸芯用の紙管を適用することができる。特に食品衛生材料用途に使用される不織布を巻き取るためには、紙管表面から紙粉などの異物が発生しない紙管が望ましい。   As the paper tube in the present invention, a paper tube for a winding shaft made of a cylindrical body that is usually used for winding a nonwoven fabric, paper, film, or the like can be applied. In particular, in order to wind up a nonwoven fabric used for food hygiene materials, a paper tube that does not generate foreign matters such as paper dust from the surface of the paper tube is desirable.

前記紙管は、通常紙管の製法で製造される紙管を適用することができる。紙管の製法としては例えば、紙管の最内層からライナー紙、原紙、ライナー紙、表層紙等を所定の角度で螺旋状に複数層巻回して積層し、各層を接着剤により固着することにより円筒状に形成する方法がある。通常、最表層を形成する紙管用原紙としてクラフト紙が多用される。本発明では、紙管の内層表面とシャフトとの滑りを押えるためライナー紙を用いず、紙管の最内層から原紙、ライナー紙とするのが好ましい。また、ライナー紙が２層漉きのライナー紙の場合は、通常滑り易い密面を紙管の表面とするのに対して、本発明では滑り難い粗面である逆面を紙管の表面とするのが好ましい。なお、一般的にはポリエチレンラミネート紙、離型紙等も使用されることがあるが、本発明では巻かれる不織布との間の摩擦抵抗が少なくなるため好ましくない。また、これらは原紙の表層に樹脂フィルム層が形成されていることから古紙としての回収が不可能であり、処理費がかさむことから結果的に高価となり、資源の再利用の面でも好ましいものとはいえない。   As the paper tube, a paper tube manufactured by a normal paper tube manufacturing method can be applied. As a method for producing a paper tube, for example, a liner paper, a base paper, a liner paper, a surface paper, etc. are spirally wound at a predetermined angle from the innermost layer of the paper tube and laminated, and each layer is fixed by an adhesive. There is a method of forming a cylindrical shape. Usually, kraft paper is frequently used as the paper tube base paper forming the outermost layer. In the present invention, it is preferable not to use liner paper to suppress slippage between the inner layer surface of the paper tube and the shaft, but to use base paper and liner paper from the innermost layer of the paper tube. Further, when the liner paper is a two-layered liner paper, a slippery dense surface is normally used as the surface of the paper tube, whereas in the present invention, the reverse surface, which is a rough surface that is difficult to slip, is used as the paper tube surface. Is preferred. In general, polyethylene laminated paper, release paper, and the like may be used. However, in the present invention, the friction resistance with the nonwoven fabric to be wound is reduced, which is not preferable. In addition, since the resin film layer is formed on the surface layer of the base paper, it cannot be recovered as waste paper, and as a result, the processing cost is increased, resulting in high costs, and preferable in terms of resource reuse. I can't say that.

前記紙管の形状については特に限定されないが、内径が２０〜１５０ｍｍが好ましく、５０〜１００ｍｍがより好ましい。内径が２０ｍｍ未満であると、この紙管にシャフトを通して、巻き物が立った状態で運搬する際に、不織布が紙管から滑り落ち易くなる。また、内径が１５０ｍｍを超えると不織布を巻き取る長さが少なくなり、紙管の費用も高くなるので不適である。また紙管の肉厚は２〜１５ｍｍが好ましく、３〜５ｍｍがより好ましい。紙管の肉厚が２ｍｍ未満であると、この紙管にシャフトを通して運搬するため、シャフトの一部を広げ紙管を把持する際に紙管を破損する危険があり、肉厚が１５ｍｍを超えると紙管が重くなって不織布を巻き取る際に不織布の厚さを圧縮したり、紙管の費用も高くなるので不適である。また、紙管の長さは３００〜１５００ｍｍが好ましく、５００〜１０００ｍｍがより好ましい。紙管の長さが３００ｍｍ未満であると、ロール状巻き物の数量が多くなり後加工の効率が悪くなり、保管場所も広くなるので不適である。また、紙管の長さが１５００ｍｍを超えると、ロール状巻き物を縦置きした場合に不安定になり倒れる危険があり不適である。   The shape of the paper tube is not particularly limited, but the inner diameter is preferably 20 to 150 mm, more preferably 50 to 100 mm. When the inner diameter is less than 20 mm, the nonwoven fabric easily slips down from the paper tube when the paper tube is conveyed in a standing state through the shaft through the paper tube. On the other hand, when the inner diameter exceeds 150 mm, the length for winding the nonwoven fabric is reduced, and the cost of the paper tube is increased. The thickness of the paper tube is preferably 2 to 15 mm, more preferably 3 to 5 mm. If the thickness of the paper tube is less than 2 mm, the paper tube is transported through the shaft, so there is a risk of damaging the paper tube when a part of the shaft is spread and the paper tube is gripped, and the thickness exceeds 15 mm. When the non-woven fabric is wound up because the paper tube becomes heavy, the thickness of the non-woven fabric is reduced, and the cost of the paper tube is increased. Further, the length of the paper tube is preferably 300 to 1500 mm, and more preferably 500 to 1000 mm. If the length of the paper tube is less than 300 mm, the number of roll-shaped rolls increases, the efficiency of post-processing deteriorates, and the storage area widens, which is not suitable. On the other hand, if the length of the paper tube exceeds 1500 mm, it is not suitable because there is a risk that it becomes unstable and falls when a roll-shaped roll is placed vertically.

図１に例示するように本発明のロール状巻き物１は前記不織布２が前記紙管３に巻かれている。また、本発明では図４（ａ）に例示するように不織布２の巻き初めの先端部２’は紙管３の表面に接している。ここで、不織布の巻き初めの先端部とは、不織布の巻き初めの先端から、紙管の外周の５０％に相当する長さまでに属する部分を指すものとする。この定義によって、図４（ｂ）に例示する形態は本発明に含まれる。すなわち紙管の表面に接触しない部分の長さｄ１が紙管の外周の５０％に相当する長さよりも小さくなっている。また図４（ｃ）に例示する形態は本発明に含まれない。すなわち紙管の表面に接触しない部分の長さｄ２が紙管の外周の５０％に相当する長さよりも大きくなっている。本発明では図４（ａ）のように不織布２の巻き初めの先端部２’が紙管３の表面に接していることによって、不織布が巻き戻される際に不織布が伸ばされることなくスムースに紙管より離脱することができる。一方、図４（ａ）のように不織布２の巻き初めの先端部２’が紙管３の表面に接していない場合は、不織布が巻き戻される際に不織布２と先端部２’とが互いに反対方向に移動しようとするためその間に大きな抵抗が生じ、場合によってはくっ付いてしまう。その結果不織布が伸ばされたり破損してしまい、不織布がスムースに紙管より離脱することができなくなってしまいロ−ル交換時の妨げとなる。特に不織布が潜在捲縮性繊維の捲縮が発現した繊維を含む場合は繊維がループ状となっているため、積層された不織布同士がファスナー効果でくっついてしまう現象が発生し易くロ−ル交換時の妨げとなる。   As illustrated in FIG. 1, in the roll-shaped roll 1 of the present invention, the nonwoven fabric 2 is wound around the paper tube 3. In the present invention, as illustrated in FIG. 4A, the leading end 2 ′ at the beginning of winding of the nonwoven fabric 2 is in contact with the surface of the paper tube 3. Here, the leading end portion of the nonwoven fabric at the beginning of winding refers to a portion belonging to the length corresponding to 50% of the outer circumference of the paper tube from the leading end of the nonwoven fabric at the beginning of winding. By this definition, the form illustrated in FIG. 4B is included in the present invention. That is, the length d1 of the portion that does not contact the surface of the paper tube is smaller than the length corresponding to 50% of the outer periphery of the paper tube. Moreover, the form illustrated in FIG. 4C is not included in the present invention. That is, the length d2 of the portion that does not contact the surface of the paper tube is larger than the length corresponding to 50% of the outer periphery of the paper tube. In the present invention, as shown in FIG. 4 (a), the leading end 2 'of the nonwoven fabric 2 is in contact with the surface of the paper tube 3, so that when the nonwoven fabric is rewound, the nonwoven fabric is not stretched and the paper is smoothly stretched. It can be detached from the tube. On the other hand, as shown in FIG. 4A, when the leading end 2 ′ of the nonwoven fabric 2 is not in contact with the surface of the paper tube 3, the nonwoven fabric 2 and the leading end 2 ′ are mutually connected when the nonwoven fabric is rewound. Since it tries to move in the opposite direction, a large resistance is generated between them, and in some cases, it sticks. As a result, the nonwoven fabric is stretched or damaged, and the nonwoven fabric cannot be smoothly detached from the paper tube, which hinders the roll replacement. In particular, when the nonwoven fabric includes fibers that have developed crimps of latent crimpable fibers, the fibers are in a loop shape, so that the phenomenon that the laminated nonwoven fabrics stick to each other due to the fastener effect is likely to occur. It will be a hindrance to time.

なお図５に示すように不織布の巻き初めの先端部２’が接着手段４を介して紙管３に接着している形態も本発明に含まれない。ここで、接着手段とは不織布２と紙管３とを接合する手段のことを指すものとし、具体的には粘着性の両面テープや接着剤の塗布などのことを指すものとする。このように不織布２が接着手段４によって紙管３に接着している場合は、不織布が巻き戻される際に不織布が伸ばされ破損してしまいロ−ル交換時の妨げとなる。本発明では、巻き長さは好ましくは５０〜１０００ｍを適用することができ、より好ましくは１５０〜５００ｍを適用することができる。また巻き径は好ましくは２００〜１０００ｍｍを適用することができ、より好ましくは３００〜７００ｍｍを適用することができる。   In addition, as shown in FIG. 5, the form which the front-end | tip part 2 'of the winding start of the nonwoven fabric adheres to the paper tube 3 via the adhesion | attachment means 4 is not included in this invention. Here, the adhesion means refers to means for joining the nonwoven fabric 2 and the paper tube 3, and specifically refers to adhesive double-sided tape or application of an adhesive. Thus, when the nonwoven fabric 2 is adhere | attached on the paper tube 3 by the adhesion | attachment means 4, when a nonwoven fabric is rewound, a nonwoven fabric is extended and damaged and becomes an obstacle at the time of roll exchange. In the present invention, the winding length is preferably 50 to 1000 m, more preferably 150 to 500 m. The winding diameter is preferably 200 to 1000 mm, more preferably 300 to 700 mm.

本発明では、前記不織布と前記紙管の表面との静摩擦係数が０．４３以上であり、好ましくは０．４５以上である。この静摩擦係数の測定は下記に示す「静摩擦係数の測定方法」を用いることができる。静摩擦係数が０．４３以上であることによって、図３に例示するように巻き物１が立った状態でシャフト５を矢印Ｂの方向に引き上げた際に、紙管３から不織布２が滑り落ちることなく、巻き物１を運搬することができる。その反面、静摩擦係数が０．４３未満である場合は、図３に例示するように巻き物１が立った状態でシャフト５を矢印Ｂの方向に引き上げた際に、紙管３から不織布２が時々滑り落ちるので巻き物１を次工程に運搬することが困難になる。   In the present invention, the coefficient of static friction between the nonwoven fabric and the surface of the paper tube is 0.43 or more, preferably 0.45 or more. The static friction coefficient can be measured by using a “static friction coefficient measurement method” shown below. When the coefficient of static friction is 0.43 or more, the nonwoven fabric 2 does not slide down from the paper tube 3 when the shaft 5 is pulled up in the direction of arrow B in the state where the roll 1 is standing as illustrated in FIG. The scroll 1 can be transported. On the other hand, when the coefficient of static friction is less than 0.43, when the shaft 5 is pulled up in the direction of arrow B with the roll 1 standing as illustrated in FIG. Since it slides down, it becomes difficult to convey the roll 1 to the next process.

（静摩擦係数の測定方法）
静摩擦係数の測定には新東科学株式会社より販売されているポータブル摩擦計であるＨＥＩＤＯＮ トライボギア ミューズ ＴＹＰＥ：９４ｉを使用するか、或いは同種の原理を利用した摩擦計を使用することができる。この摩擦計を使用する場合は、まず摩擦計のスライダーに付属されているＯリングを外し、該当する不織布でスライダーを包み込むようにして、不織布をスライダーにＯリングで固定する。次いでスライダーを付属のスライダーホルダーに載せ、基板接続部へネジが止まる迄ネジ込む。この準備の後に前記摩擦計のスライダーを紙管の表面に接触させながら、紙管の軸方向にスライダーを移動させて摩擦計の表示より静摩擦係数の値を読み取る。或いは前述の準備の後に、紙管の軸方向に紙管を自動的に移動可能な装置に紙管を取り付け、前記摩擦計のスライダーを紙管の表面に接触させるようにして摩擦計を固定する。次いで紙管を自動的に移動させることによって、摩擦計の表示より静摩擦係数の値を読み取る。 (Measuring method of static friction coefficient)
For the measurement of the coefficient of static friction, HEIDON Tribogear Muse TYPE: 94i, which is a portable friction meter sold by Shinto Kagaku Co., Ltd., or a friction meter using the same kind of principle can be used. When using this tribometer, first, remove the O-ring attached to the slider of the tribometer, wrap the slider with the corresponding non-woven fabric, and fix the non-woven fabric to the slider with the O-ring. Next, the slider is placed on the attached slider holder and screwed into the board connecting portion until the screw stops. After this preparation, while the slider of the friction meter is in contact with the surface of the paper tube, the slider is moved in the axial direction of the paper tube, and the value of the static friction coefficient is read from the display of the friction meter. Alternatively, after the above preparation, the paper tube is attached to a device that can automatically move the paper tube in the axial direction of the paper tube, and the friction meter is fixed by bringing the slider of the friction meter into contact with the surface of the paper tube. . Next, by automatically moving the paper tube, the value of the static friction coefficient is read from the display of the tribometer.

また、本発明のロール状巻き物を図３に例示するように巻き物１が立った状態でシャフト５を矢印Ｂの方向に引き上げて運搬する場合に、実際に紙管３から不織布２が滑り落ちることなく運搬できるかどうかの簡易な試験法として、下記に示す「落下試験法」を用いることができる。   Further, when the roll 5 of the present invention is transported by pulling up the shaft 5 in the direction of arrow B while the roll 1 is standing as illustrated in FIG. 3, the nonwoven fabric 2 does not actually slip off from the paper tube 3. The following “drop test method” can be used as a simple test method for determining whether or not the product can be transported.

（落下試験法）
図６に示すように、巻き物１が立った状態でシャフト５を紙管３に差し込み、空気圧によって爪を突出して紙管を内側から把持する。次いでシャフトを矢印Ｂの方向にゆっくり引き上げる。次いで巻き物１の上面に重り６を均等になるように静かに配置して、不織布２が紙管３から滑り落ちる時の重りの重さを調べる。なお紙管にかかる荷重Ｌ（ｇ／ｃｍ２）は、不織布２の質量と重りの質量の合計Ｗ（ｇ）を紙管表面の有効面積（すなわち不織布と紙管とが接している面積）Ｓ（ｃｍ２）で除した値で表すものとする。 (Drop test method)
As shown in FIG. 6, the shaft 5 is inserted into the paper tube 3 in a state where the roll 1 is standing, and the claw is protruded by air pressure to grip the paper tube from the inside. The shaft is then slowly pulled up in the direction of arrow B. Next, the weight 6 is gently arranged on the upper surface of the roll 1 so as to be uniform, and the weight of the weight when the nonwoven fabric 2 slides down from the paper tube 3 is examined. The load L (g / cm 2 ) applied to the paper tube is the total area W (g) of the mass of the non-woven fabric 2 and the weight of the weight. The effective area of the paper tube surface (ie, the area where the non-woven fabric and the paper tube are in contact) It shall be represented by a value divided by (cm 2 ).

上記落下試験法によれば、本発明のロール状巻き物では紙管にかかる荷重Ｌの値が２０ｇ／ｃｍ２以上であることが好ましく、２５ｇ／ｃｍ２以上であることがより好ましい。荷重Ｌの値が２０ｇ／ｃｍ２以上であることによって、ロール状巻き物（重りがかけられていない図３の状態の巻き物）の実際の運搬において不織布が紙管から滑り落ちる割合は１％未満となる。なお、紙管にかかる荷重Ｌの値は、ロール状巻き物から紙管を引抜くに要する荷重の値に等しい。 According to the drop test method, in the roll-shaped roll of the present invention, the value of the load L applied to the paper tube is preferably 20 g / cm 2 or more, and more preferably 25 g / cm 2 or more. When the value of the load L is 20 g / cm 2 or more, the rate at which the nonwoven fabric slides down from the paper tube in the actual conveyance of the roll-shaped roll (the roll in the state shown in FIG. 3 without weight) is less than 1%. . Note that the value of the load L applied to the paper tube is equal to the value of the load required to pull out the paper tube from the roll-shaped roll.

本発明によって、潜在捲縮性繊維の捲縮が発現した繊維を含む不織布が紙管に巻かれてなるロール状巻き物に関し、特に次工程に送るため、紙管の軸を垂直にして紙管にシャフトを通して運搬する時に、不織布が紙管から滑り落ちる恐れのない好適なロール状巻き物を提供することが可能となった。   According to the present invention, a roll-shaped roll in which a non-woven fabric containing fibers in which crimps of latent crimpable fibers are expressed is wound around a paper tube. It has become possible to provide a suitable roll-shaped roll in which the non-woven fabric is not likely to slide off the paper tube when transported through the shaft.

以下、本発明の実施例につき説明するが、これは発明の理解を容易とするための好適例に過ぎず、本発明はこれら実施例の内容に限定されるものではない。   Examples of the present invention will be described below, but these are only suitable examples for facilitating the understanding of the present invention, and the present invention is not limited to the contents of these examples.

（物性試験方法）
５０％伸長時強さはＪＩＳ Ｌ１０９６−１９９９（一般織物試験方法）に記載される、８．１２．１Ａ法（ストリップ法）に準じて測定した。ただし、試験片の巾は５ｃｍ、長さ２０ｃｍ、つかみ間隔１０ｃｍ、引張速度２０ｃｍ／分として、タテ方向とヨコ方向の算術平均で表すものとする。 (Physical property test method)
The strength at 50% elongation was measured according to the 8.12.1A method (strip method) described in JIS L1096-1999 (General Textile Test Method). However, the width of the test piece is 5 cm, the length is 20 cm, the grip interval is 10 cm, and the tensile speed is 20 cm / min.

厚さはＪＩＳ Ｌ１０８５−１９９８（不織布しん地試験方法）に記載される、６．１．２Ａ法に準じて測定した。ただし、荷重は２．０ｋＰａとした。   The thickness was measured according to the 6.1.2A method described in JIS L1085-1998 (nonwoven fabric test method). However, the load was 2.0 kPa.

（実施例１）
潜在捲縮性繊維として、樹脂成分がポリエステルと低融点ポリエステルの二成分からなる偏芯型の芯鞘構造の複合繊維である、２．２デシテックスのステープル繊維１００％からなる原料繊維をカード機にかけ、繊維ウエブを形成した。次いでこの繊維ウエブ中の繊維を水流よって３次元的に交絡させて交絡シートとした。次いでこの交絡シートに過剰の張力がかからないように加熱空気流に浮かせた状態で加熱処理を行い、潜在捲縮性繊維の捲縮を発現させて６２ｃｍ巾の面密度１００ｇ／ｍ２、厚さ０．８５ｍｍ、５０％伸長時強さ２．５Ｎ／５０ｍｍの不織布を得た。 Example 1
As a latent crimpable fiber, a raw fiber composed of 100% staple fiber of 2.2 dtex, which is an eccentric core-sheath composite fiber composed of two components of polyester and low melting point polyester, is applied to a card machine. A fiber web was formed. Next, the fibers in the fiber web were entangled three-dimensionally with a water stream to obtain an entangled sheet. Next, the entangled sheet is heated in a heated air flow so that excessive tension is not applied, and crimps of the latent crimpable fiber are expressed to obtain a 62 cm wide surface density of 100 g / m 2 and a thickness of 0. A non-woven fabric having a strength of 2.5 N / 50 mm at 85% and 50% elongation was obtained.

次いで、紙管の最内層から、原紙、ライナー紙の順に所定の角度で螺旋状に巻回して積層された紙管Ａを準備した。この紙管のライナー紙は２層漉きのライナー紙であり、滑り難い粗面を紙管の表面としている。（一般的な紙管では滑り易い密面を紙管の表面とするのに対して逆の面を用いた。）また、紙管の寸法は、内径が７７ｍｍであり、肉厚が４ｍｍ、長さは６２ｃｍとした。また、この紙管の静摩擦係数を前述の「静摩擦係数の測定方法」を用いて調べたところ、０．４８であった。   Next, a paper tube A was prepared in which a base paper and a liner paper were spirally wound at a predetermined angle in this order from the innermost layer of the paper tube. The liner paper of this paper tube is a two-layered liner paper, and has a rough surface that is difficult to slip as the surface of the paper tube. (In contrast to a general paper tube, a slippery surface is used as the surface of the paper tube, and the opposite surface is used.) The paper tube has an inner diameter of 77 mm and a wall thickness of 4 mm. The length was 62 cm. Further, the static friction coefficient of the paper tube was examined by using the above-mentioned “Measuring Method of Static Friction Coefficient” and found to be 0.48.

次いで、この紙管に自動巻き取り装置（図示しない）で前記不織布を３００ｍ巻き取りロール状巻き物を得た。このとき、図４（ａ）に示すように不織布の巻き始めの先端部の全てが紙管の表面に接するようにした。また、このロール状巻き物に対して、前述の「落下試験法」に従って落下試験を行ったところ、ロール状の巻き物から紙管を引抜くに要する荷重は２６ｇ／ｃｍ２であった。また、このロール状巻き物１０００個に対して、図２に例示するようにロール状の巻き物１を縦置きにして巻き物の紙管３にシャフト５を矢印Ａの方向に通し、次いで図３に例示するように巻き物１が立った状態でシャフト５を矢印Ｂの方向に引き上げ、ロール状の巻き物１を持ち上げて運搬したところ、不織布が紙管から滑り落ちるトラブルは全く生じなかった。 Next, a 300 m take-up roll of the non-woven fabric was obtained on this paper tube with an automatic take-up device (not shown). At this time, as shown to Fig.4 (a), all the front-end | tip parts of the winding start of a nonwoven fabric were made to contact the surface of a paper tube. Further, when a drop test was performed on the roll-shaped roll according to the above-mentioned “drop test method”, the load required to pull out the paper tube from the roll-shaped roll was 26 g / cm 2 . Further, with respect to 1000 roll-shaped rolls, as shown in FIG. 2, the roll-shaped roll 1 is placed vertically and the shaft 5 is passed through the paper tube 3 of the roll in the direction of arrow A, and then illustrated in FIG. Thus, when the roll 1 stood up and the shaft 5 was pulled up in the direction of arrow B and the roll-like roll 1 was lifted and conveyed, there was no trouble that the nonwoven fabric slipped from the paper tube.

（比較例１）
実施例１において、紙管と不織布の間の静摩擦係数が０．４２の紙管を準備したこと以外は、実施例１と同様にして、ロール状巻き物を得た。このロール状巻き物に対して、前述の「落下試験法」に従って落下試験を行ったところ、ロール状の巻き物から紙管を引抜くに要する荷重は１７ｇ／ｃｍ２であった。また、このロール状巻き物を実施例１と同様にして運搬したところ不織布が紙管から滑り落ちる割合が１％であった。 (Comparative Example 1)
In Example 1, a roll-shaped roll was obtained in the same manner as Example 1 except that a paper tube having a coefficient of static friction between the paper tube and the nonwoven fabric of 0.42 was prepared. When this roll-shaped roll was subjected to a drop test according to the “drop test method” described above, the load required to pull out the paper tube from the roll-shaped roll was 17 g / cm 2 . Further, when this roll-shaped roll was transported in the same manner as in Example 1, the ratio of the nonwoven fabric sliding down from the paper tube was 1%.

実施例１の結果と比較例１の結果を表１に示す。   The results of Example 1 and Comparative Example 1 are shown in Table 1.

表１

Figure 2006027900
Table 1
Figure 2006027900

は本発明のロール状巻き物の例を示す図である。These are figures which show the example of the roll-shaped winding of this invention. はロール状巻き物の紙管にシャフトを通す方法を説明する図である。FIG. 3 is a view for explaining a method of passing a shaft through a paper tube of a roll-shaped roll. はシャフトを持ち上げ、ロール状巻き物を運搬する方法を説明する図である。FIG. 3 is a diagram for explaining a method of lifting a shaft and transporting a roll-shaped roll. （ａ）、（ｂ）、（ｃ）は紙管に不織布を巻き始める状態を説明する図である。(A), (b), (c) is a figure explaining the state which begins to wind a nonwoven fabric around a paper tube. は紙管に不織布を巻き始める状態を説明する図である。FIG. 3 is a diagram illustrating a state in which a nonwoven fabric is started to be wound around a paper tube. は紙管から不織布を落下させる落下試験方法を説明する図である。These are the figures explaining the drop test method which drops a nonwoven fabric from a paper tube.

符号の説明Explanation of symbols

１．ロール状巻き物
２．不織布
２’不織布の巻き始めの先端部
３．紙管
４．接着手段
５．シャフト
６．重り
1. 1. Rolled roll 2. Front end of winding of nonwoven fabric 2 ′ nonwoven fabric Paper tube4. Adhesive means
5. Shaft 6. weight

Claims (2)

潜在捲縮性繊維の捲縮が発現した繊維を含む不織布が紙管に巻かれてなるロール状巻き物であって、前記不織布の巻き初めの先端部は前記紙管の表面に接しており、前記不織布と前記紙管の表面との静摩擦係数が０．４３以上であることを特徴とするロール状巻き物。   A roll-shaped wound product in which a nonwoven fabric including fibers in which crimps of latent crimpable fibers are expressed is wound around a paper tube, and a leading end portion of the nonwoven fabric is in contact with the surface of the paper tube, A roll-like wound product, wherein a coefficient of static friction between the nonwoven fabric and the surface of the paper tube is 0.43 or more. 前記ロール状巻き物の紙管を引抜くに要する荷重が、前記紙管に前記不織布が接触する面積１ｃｍ２あたり２０ｇ以上であることを特徴とする請求項１に記載のロール状巻き物。 The roll-shaped roll according to claim 1, wherein a load required for pulling out the paper tube of the roll-shaped roll is 20 g or more per 1 cm 2 of the area where the nonwoven fabric comes into contact with the paper tube.
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