JP2003082545A - Water-absorbing composite spun yarn - Google Patents
Water-absorbing composite spun yarnInfo
- Publication number
- JP2003082545A JP2003082545A JP2001269855A JP2001269855A JP2003082545A JP 2003082545 A JP2003082545 A JP 2003082545A JP 2001269855 A JP2001269855 A JP 2001269855A JP 2001269855 A JP2001269855 A JP 2001269855A JP 2003082545 A JP2003082545 A JP 2003082545A
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- Prior art keywords
- water
- fiber bundle
- core
- short fiber
- fibers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、摩耗や捩じれによ
るせん断応力に対して強度が改善され、後工程での単糸
切れや毛羽切れによる粉塵飛散を極小にして脆弱性を改
善し、且つその素材の極めて優れた吸水性機能を可能な
かぎりそのまま具備した吸水性複合紡績糸に関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has improved strength against shear stress due to abrasion and twisting, minimizes dust scattering due to single yarn breakage or fluff breakage in the subsequent step, and improves fragility. The present invention relates to a water-absorbent composite spun yarn having the extremely excellent water-absorbing function of the material as it is.
【０００２】[0002]
【従来の技術】従来から、高吸水性の繊維からなる紡績
糸を糸状、紐状、布帛状に加工して、吸水性や膨潤性を
生かした用途展開が進んでいる。しかしながら紡績糸と
した場合は、糸状の形状と強度を保つために、撚り、結
束等の方法を必要とすることから繊維間を拘束し、無拘
束状態の繊維の状態よりも吸水倍率が低くなるのが一般
的である。具体的には無拘束状態で通常自重の５０〜６
０倍の吸水率をもつ繊維束状物が、撚係数９５でリング
紡績を行うと７〜８倍の吸水率に低下する。2. Description of the Related Art Conventionally, spun yarn made of highly water-absorbent fibers has been processed into a thread shape, a string shape, or a cloth shape, and the development of applications utilizing water absorption and swelling properties has been advanced. However, in the case of using spun yarn, in order to maintain the shape and strength of the yarn, a method such as twisting or binding is required, so that the fibers are restrained and the water absorption ratio becomes lower than that of the unconstrained fibers. Is common. Specifically, in the unrestrained state, the normal weight is 50 to 6
When a fiber bundle having 0 times the water absorption rate is subjected to ring spinning with a twist coefficient of 95, the water absorption rate is reduced to 7 to 8 times.
【０００３】また、高吸水性を含む繊維束状物を糸状で
捲回して作成した高吸水性紡績糸の場合は、高吸水性を
含む繊維束状物に拘束が少ないので吸水能力は非常に高
く有用であるが、その反面摩耗や捩じれによるせん断応
力に対して脆弱である。そのため、施撚や後工程での各
種ガイド通過時の擦過作用によって短繊維束状物の損傷
や切断が多発し、粉塵飛散が著しくなり操業性の低下を
余儀なくされるという問題点があった。Further, in the case of a superabsorbent spun yarn produced by winding a fiber bundle containing superabsorbent in a filament shape, the fiber bundle containing superabsorbent is less constrained and has a very high water absorbing ability. Although highly useful, it is vulnerable to shear stress due to abrasion and twisting. Therefore, there is a problem in that short fiber bundles are frequently damaged or cut due to a twisting action or a rubbing action when passing various guides in a later step, and dust scattering becomes remarkable, which inevitably lowers operability.
【０００４】また実撚を挿入した紡績糸の場合、粉塵飛
散は改善されるものの本来の素材特徴である高吸水能力
が著しく低下するという問題点が生じる。Further, in the case of spun yarn in which the real twist is inserted, dust scattering is improved, but there is a problem that the high water absorption capacity, which is an original material characteristic, is significantly reduced.
【０００５】即ち、本発明の目的とするところは、摩耗
や捩じれによるせん断応力に対して強度が改善され、後
工程での単糸切れや毛羽切れによる粉塵飛散を極小にし
て脆弱性を改善し、且つその素材の極めて優れた吸水性
機能を可能なかぎりそのまま具備するところの吸水性複
合紡績糸を提供することにある。That is, the object of the present invention is to improve the strength against shear stress due to wear and twist, and to minimize dust scattering due to single yarn breakage or fluff breakage in the subsequent process to improve brittleness. Another object of the present invention is to provide a water-absorbent composite spun yarn which has the extremely excellent water-absorbing function of the material as it is.
【０００６】[0006]
【課題を解決するための手段】吸水性繊維は、水を吸収
する際、繊維の長手方向及びその垂直方向に体積膨潤す
ることで大容量の水を吸収するため、糸状を構成する短
繊維束状物として出来るだけ拘束を与えない方が良く、
芯鞘型短繊維束状物が無撚であって、且つその外周部が
連続糸状物で捲回されていることが好ましい。When absorbing water, a water-absorbent fiber absorbs a large amount of water by volume swelling in the longitudinal direction of the fiber and in the direction perpendicular to the fiber. It is better not to give restraints as much as possible,
It is preferable that the core-sheath type short fiber bundle is untwisted, and the outer peripheral portion thereof is wound with a continuous thread.
【０００７】従って、上述の目的は、芯部が吸水性短繊
維束状物で、鞘部が吸水性繊維以外の繊維からなる短繊
維束状物で構成され、芯部と鞘部の重量比率が９５：５
〜２０：８０である芯鞘型短繊維束状物と、その外周を
１００〜３５０Ｔ／ｍで捲回してなる連続糸状物とから
なることを特徴とする吸水性複合紡績糸（請求項１）に
よって達成される。Therefore, the above-mentioned object is that the core portion is made of a water-absorbent short fiber bundle and the sheath portion is made of a short fiber bundle made of fibers other than the water-absorbent fiber. Is 95: 5
To 20:80 core-sheath type short fiber bundles, and a continuous filament formed by winding the outer periphery at 100 to 350 T / m (claim 1). Achieved by
【０００８】また、連続糸状物の太さが、芯鞘型短繊維
束状物の太さの１／２００〜１／２の太さであることを
特徴とする請求項１の吸水性複合紡績糸（請求項２）に
よって達成される。Further, the thickness of the continuous filamentous material is 1/200 to 1/2 of the thickness of the core-sheath type short fiber bundle, and the water absorbent composite spinning according to claim 1. Achieved by a thread (claim 2).
【０００９】また芯鞘型短繊維束状物が、実質的に無撚
であることを特徴とする請求項１および２の吸水性複合
紡績糸によって達成される。The core-sheath type short fiber bundle is substantially twist-free, which is achieved by the water-absorbent composite spun yarn according to claims 1 and 2.
【００１０】[0010]
【発明の実施の形態】以下、本発明の構成の詳細につい
て説明する。本発明の吸水性複合紡績糸は、芯部に吸水
性短繊維束状物を、鞘部に吸水性繊維以外の繊維からな
る短繊維束状物を配してなる芯鞘型短繊維束状物に、更
に比較的繊度の高い連続糸状物でその外周を捲回してな
る様に構成している。DETAILED DESCRIPTION OF THE INVENTION The details of the configuration of the present invention will be described below. The water-absorbent composite spun yarn of the present invention is a core-sheath type short fiber bundle formed by arranging a water-absorbent short fiber bundle in the core part and a short fiber bundle made of fibers other than the water-absorbent fiber in the sheath part. A continuous filamentous material having a relatively high fineness is wound around the outer periphery of the object.
【００１１】尚、芯鞘型短繊維束状物に位置する芯部と
は、芯鞘型短繊維束状物を横断的にカットした場合、芯
部の短繊維束状物が必ずしも中心部分のみに位置しなけ
ればならないということではなく、それを取り巻く鞘部
の短繊維束状物の辺縁部に片寄って位置しても良く、ま
たその芯部の短繊維束状物が鞘部の短繊維束状物から部
分的に表面露出しても良いことを意味する。The term "core portion located in the core-sheath type short fiber bundle" means that when the core-sheath type short fiber bundle is cut transversely, the short fiber bundle of the core portion is necessarily only the central portion. It does not mean that the short fiber bundle of the sheath surrounding it should be offset from the edge of the short fiber bundle of the surrounding sheath. This means that the surface of the fiber bundle may be partially exposed.
【００１２】本発明の芯部に配される吸水性短繊維状束
状物に使用される吸水繊維としては、例えば架橋アクリ
ル酸塩系繊維、特開２００１−４０５７６号公報に挙げ
られている様にアクリル繊維を基体として後加工により
加水分解させて得られた繊維などの比較的脆弱な繊維が
挙げられ、これらの吸水性繊維を混用して用いることも
できる。The water-absorbing fibers used in the water-absorbing short fibrous bundle arranged in the core of the present invention include, for example, crosslinked acrylate fibers, as described in JP-A-2001-40576. In addition, there are relatively fragile fibers such as fibers obtained by hydrolyzing acrylic fibers as a base material by post-processing, and these water-absorbent fibers can also be mixed and used.
【００１３】上記架橋アクリル酸塩系繊維としては、特
開平１１−８１１３０号公報や特開平２０００−３１４
０８２号公報に挙げられている様にアクリル繊維を原料
にし、ポリマー改質をして分子を親水化・高架橋化した
繊維や、架橋アクリル酸塩系繊維等が挙げられるが、ア
クリル酸ナトリウム塩を主成分とする高吸収繊維が高吸
水性の点で好ましい。As the above-mentioned cross-linked acrylate fiber, there are disclosed in JP-A-11-81130 and JP-A-2000-314.
As described in JP-A-082, fibers made of acrylic fiber as a raw material and polymer-modified to make the molecule hydrophilic and highly crosslinked, crosslinked acrylate-based fibers, and the like can be mentioned. Highly absorbent fibers as the main component are preferred in terms of high water absorption.
【００１４】このような架橋アクリル酸塩系繊維の好適
な市販品としては、具体的には鐘紡株式会社製のベルオ
アシス、東洋紡績糸製のＮ３８およびディスメルなどを
挙げることができる。尚、ベルオアシスの場合、自重の
約８０倍の水、自重の約１.５倍の湿気を吸収できる能
力を持っている。Specific examples of suitable commercially available products of such crosslinked acrylate fibers include Bell Oasis manufactured by Kanebo Co., Ltd., N38 manufactured by Toyobo Co., Ltd., and Dismel. In the case of Bell Oasis, it has the ability to absorb about 80 times its own weight of water and about 1.5 times its own weight of moisture.
【００１５】また、前記架橋アクリル酸塩系繊維、アク
リル繊維を基体として後加工により加水分解させて得ら
れた繊維など比較的脆弱な吸水性繊維またはそれらの吸
水性繊維を混用した繊維に他の吸水性繊維以外の繊維か
らなる短繊維として、ポリエステル、ポリアミド等の合
成繊維、半合成繊維および天然繊維などが部分的に含ま
れても良い。Further, relatively brittle water-absorbent fibers such as the above-mentioned cross-linked acrylate fibers, fibers obtained by hydrolyzing post-processing using acrylic fibers as a substrate, or fibers containing these water-absorbent fibers mixed with other fibers As the short fibers made of fibers other than the water-absorbent fibers, synthetic fibers such as polyester and polyamide, semi-synthetic fibers and natural fibers may be partially contained.
【００１６】その場合、吸水性繊維と吸水性繊維以外の
繊維からなる短繊維の混用割合としては、１００：０〜
２０：８０が好ましい。In this case, the mixing ratio of the water-absorbent fibers and the short fibers composed of fibers other than the water-absorbent fibers is 100: 0.
20:80 is preferable.
【００１７】次に鞘部の短繊維束状物に使用される短繊
維としては、前記吸水性繊維以外の一般的な短繊維で良
く、例えばポリエステル、ポリアミド等の合成繊維、半
合成繊維および天然繊維などが挙げられる。尚、それら
の繊維断面形状等についてはなんら制約されるものでは
ない。The short fibers used in the short fiber bundle of the sheath portion may be general short fibers other than the water-absorbing fibers, such as synthetic fibers such as polyester and polyamide, semi-synthetic fibers and natural fibers. Fiber etc. are mentioned. The fiber cross-sectional shape and the like are not limited at all.
【００１８】芯部と鞘部との短繊維束状物の重量割合と
しては、９５：５〜２０：８０が必要であり、芯部と鞘
部の重量比が７０：３０〜４０：６０が脆弱性改善と吸
水性能特に吸水速度を保持する上で特に好ましい。特
に、芯鞘部の重量比が芯部２０：鞘部８０を越える場
合、各種ガイド通過時の擦過作用により切断されるは大
幅に改善されるが、逆に吸水量と吸水速度（複合糸の吸
引力）が大幅低下する。また、逆に芯鞘部の重量比が芯
部９５：鞘部５を下回る場合、複合糸の脆弱性を改善す
ることが困難である。The weight ratio of the short fiber bundle of the core portion and the sheath portion is required to be 95: 5 to 20:80, and the weight ratio of the core portion and the sheath portion is 70:30 to 40:60. It is particularly preferable for improving brittleness and water absorption performance, especially for maintaining water absorption speed. In particular, when the weight ratio of the core-sheath portion exceeds the core portion 20: sheath portion 80, the cutting due to the rubbing action when passing various guides is greatly improved, but conversely, the water absorption amount and the water absorption speed (of the composite yarn) The suction force) is significantly reduced. On the contrary, when the weight ratio of the core-sheath portion is lower than the core portion 95: sheath portion 5, it is difficult to improve the brittleness of the composite yarn.
【００１９】また、芯鞘型短繊維束状物が実質的に無撚
であることが、吸水性能、特に吸水速度を保持する上で
好ましい。Further, it is preferable that the core-sheath type short fiber bundle is substantially untwisted in order to maintain the water absorption performance, particularly the water absorption speed.
【００２０】本発明に用いられる連続糸状物としては、
フィラメント糸、モノフィラメント糸、紡績糸などが挙
げられる。尚、それらの繊維断面形状および伸縮特性な
どに何ら制約されるものではない。具体的な連続糸状物
の糸としては、ポリエステル、ポリアミド等の合成繊
維、半合成繊維および天然繊維などから紡糸されたも
の，あるいはポリエステル、ポリアミド、ウレタンなど
のフィラメントが挙げられる。The continuous filamentous material used in the present invention includes:
Examples thereof include filament yarn, monofilament yarn, spun yarn and the like. It should be noted that the fiber cross-sectional shape and the expansion / contraction characteristics are not limited at all. Specific examples of the thread of the continuous filamentous material include those spun from synthetic fibers such as polyester and polyamide, semi-synthetic fibers and natural fibers, and filaments such as polyester, polyamide and urethane.
【００２１】本発明に用いられる連続糸状物の太さとし
ては、通常繁用されている太さのもので良いが、芯鞘型
短繊維束状物の太さの１／２００〜１／２の太さが、芯
鞘型短繊維束状物の吸水性を損なわず、芯鞘型短繊維束
状物の強度を保持するのに好ましい。The thickness of the continuous filamentous material used in the present invention may be the thickness commonly used, but is 1/200 to 1/2 of the thickness of the core-sheath type short fiber bundle. Is preferable for maintaining the strength of the core-sheath type short fiber bundle without damaging the water absorption property of the core-sheath type short fiber bundle.
【００２２】本発明に用いられる連続糸状物の撚数とし
ては、１００〜３５０Ｔ（トルク）／ｍが必要である。
１００Ｔ／ｍ未満の場合、連続糸状物の内側に存在する
短繊維束状物の拘束力が低くなり吸水性が増加する反
面、擦過による切断が生じやすくなり、更には吸水性繊
維の脱落が起りやすくなる。また逆に３５０Ｔ／ｍ以上
の場合内側に存在する短繊維束状物を拘束させ、本来の
特徴である吸収性を損ないやすくなる。The number of twists of the continuous filamentous material used in the present invention must be 100 to 350 T (torque) / m.
If it is less than 100 T / m, the binding force of the short fiber bundles present inside the continuous filamentous material will be low and the water absorption will increase, but on the other hand, cutting due to rubbing will easily occur, and further the water absorbing fibers will fall off. It will be easier. On the contrary, when it is 350 T / m or more, the short fiber bundles existing inside are restricted, and the absorbability, which is an original feature, is easily impaired.
【００２３】本発明の吸水性複合紡績糸の製造方法とし
ては、例えば次のような方法が挙げられる。通常の紡績
法で芯成分としての吸水性短繊維束状物の粗糸Ａおよび
鞘成分としての吸水性繊維以外の繊維からなる短繊維束
状物の粗糸Ｂを得る。更に該短繊維束状物の粗糸Ａおよ
びＢを用いた吸水性複合紡績糸は、具体的には図１およ
び２、または図３に示した工程によって得ることができ
る。Examples of the method for producing the water-absorbent composite spun yarn of the present invention include the following methods. By a conventional spinning method, a roving yarn A of a water-absorbing short fiber bundle as a core component and a roving yarn B of a short fiber bundle of fibers other than the water-absorbing fibers as a sheath component are obtained. Further, the water-absorbent composite spun yarn using the rovings A and B of the short fiber bundle can be specifically obtained by the steps shown in FIGS. 1 and 2 or FIG.
【００２４】図１は、トランペット２により収束力を利
用した芯鞘型短繊維束状物（＝芯鞘型２層粗糸）の製造
方法である。前記短繊維束状物の粗糸ＡおよびＢを用
い、図１の様に粗糸Ｂ、Ａ、Ｂ成分とサンドイッチ状の
スライバー列１を作成し、該スライバー列をトランペッ
ト２に急速に収束させることで、吸水性繊維以外の繊維
からなる短繊維束状物の粗糸Ｂ成分がトランペットの収
束力に抗しきれなくなり、盛り上って芯鞘型短繊維束状
物（＝芯鞘型２層粗糸）が形成され、次にコイラー３に
よってケンス４に収容される。更に該芯鞘型２層粗糸は
図２の様に、ドラフトゾーン５にて所要の太さまでドラ
フトされ、中空スピンドル６の先端で連続糸状物７によ
り螺旋状に巻き付けられて吸水性複合紡績糸が形成され
る。FIG. 1 shows a method for producing a core-sheath type short fiber bundle (= core-sheath type two-layer roving yarn) using the converging force of the trumpet 2. Using the roving yarns A and B of the short fiber bundle, a sliver row 1 sandwiched with roving yarns B, A and B components is prepared as shown in FIG. 1, and the sliver row is rapidly converged on the trumpet 2. As a result, the roving component B of the short fiber bundle composed of fibers other than the water-absorbent fiber cannot withstand the converging force of the trumpet, and rises to form a core-sheath type short fiber bundle (= core-sheath type 2 A layer roving) is formed and then housed in the can 4 by the coiler 3. Further, as shown in FIG. 2, the core-sheath type two-layer roving is drafted to a required thickness in the draft zone 5 and spirally wound by the continuous filament 7 at the tip of the hollow spindle 6 to form a water-absorbent composite spun yarn. Is formed.
【００２５】また、図３は、２種の短繊維束状物・粗糸
ＡおよびＢの送出し量を変え、一方の粗糸に他一方の粗
糸をこより状に包み込む方法で作成した吸水性複合糸の
製造方法である。前記短繊維束状物の粗糸ＡおよびＢを
それぞれバックローラー８に供給し、エプロンローラー
９を経てテーパーフロントローラー１０の送り出し量の
高い側へ通して得た吸水性繊維以外の繊維からなる短繊
維束状物の粗糸Ｂと、送り出し量の低い側へ通して得ら
れた吸水性短繊維束状物の粗糸Ａとを同時に精紡し、吸
水性短繊維状物の粗糸Ａを中心に吸水性繊維以外の繊維
からなる短繊維束状物の粗糸Ｂを捲回させることによ
り、吸水性短繊維束状物の粗糸Ａをこより状に包みこむ
状態で芯鞘型短繊維束状物１１が形成される。更に該芯
鞘型短繊維束状物は、中空スピンドル６の先端で連続糸
状物７により螺旋状に巻き付けられて吸水性複合紡績糸
が得られる。Further, FIG. 3 shows a water absorption prepared by a method in which two kinds of short fiber bundles and rovings A and B are fed in different amounts, and one roving wraps the other roving in a strand shape. It is a method for producing a composite yarn. The short fibers composed of fibers other than the water-absorbent fibers obtained by supplying the roving yarns A and B of the short fiber bundle to the back roller 8 and passing them through the apron roller 9 to the side of the taper front roller 10 having a high delivery amount. The roving yarn B of the fiber bundle and the roving yarn A of the water-absorbing short fiber bundle obtained by passing it to the side where the feed amount is low are simultaneously spun into A core-sheath type short fiber in a state in which a roving B of a short fiber bundle made of a fiber other than a water-absorbing fiber is wound around the center to wrap the roving A of the water-absorbing short fiber bundle in a strand shape. A bundle 11 is formed. Further, the core-sheath type short fiber bundle is spirally wound around the hollow spindle 6 by the continuous filament 7 to obtain a water absorbent composite spun yarn.
【００２６】本発明の吸水性複合紡績糸の用途として
は、吸水性、吸湿性を必要とする織編物全般に用いるこ
とができ、例えば衣料全般、下着類、マット類、油中混
入水の水取りフィルターや除湿用フィルターなどの各種
フィルター、通信ケーブル用遮水材または水走り防止
材、農業用保水材などに利用することができる。The water-absorbent composite spun yarn of the present invention can be used for all woven and knitted fabrics requiring water absorbency and hygroscopicity, such as general clothing, underwear, mats, and water mixed with oil. It can be used as various filters such as a filter for removing moisture and a filter for dehumidification, a water impervious material for communication cables or a water running prevention material, and a water retention material for agriculture.
【００２７】[0027]
【実施例】本発明を以下の比較例および実施例により具
体的に説明するが、本発明はこれらの実施例のみに限定
されるものではない。EXAMPLES The present invention will be specifically described by the following comparative examples and examples, but the present invention is not limited to these examples.
【００２８】実施例１
本発明における吸水性複合紡績糸の製造方法の一例を示
す。図１および２に実施例１の工程概略図を示す。芯成
分としてポリアクリル酸部分ナトリウム塩を直接紡糸し
得られたポリアクリレート系繊維（繊度９ｄ［デニー
ル］）と、ポリエステル繊維（繊度３ｄ）を６０：４０
の割合で混合し、通常の紡績法で吸水性短繊維束状物の
粗糸Ａを得た（芯成分の吸水性短繊維束状物Ａ）。また
鞘成分としてポリエステル短繊維（繊度２ｄ）１００％
を短繊維束として、通常の紡績法で、吸水性繊維以外の
繊維からなる短繊維束状物Ｂの粗糸Ｂを得た（鞘成分の
吸水性繊維以外の繊維からなる短繊維束状物Ｂ）。Example 1 An example of a method for producing a water-absorbent composite spun yarn according to the present invention will be described. 1 and 2 are schematic views of the process of Example 1. 60:40 polyacrylate fiber (fineness 9d [denier]) obtained by directly spinning polyacrylic acid partial sodium salt as a core component and polyester fiber (fineness 3d)
The mixture was mixed at a ratio of 2 to obtain a roving A of a water-absorbent short fiber bundle (a core of a water-absorbent short fiber bundle A). 100% polyester short fiber (fineness 2d) as a sheath component
As a short fiber bundle, a roving B of a short fiber bundle B made of fibers other than the water-absorbent fibers was obtained by an ordinary spinning method (a short fiber bundle made of fibers other than the water-absorbent fibers of the sheath component). B).
【００２９】各々の短繊維束状物の粗糸、鞘成分の吸水
性繊維以外の繊維からなる短繊維束状物Ｂと芯成分の吸
水性短繊維束状物Ａは、図１の様に各粗糸Ｂ、Ａ、Ｂ成
分とサンドイッチ状になるようにし、かつ短繊維束状物
Ｂ、Ａ、Ｂの比率が２０／６０／２０（粗糸Ａ，Ｂの芯
鞘比率は６０／４０）になるようにしてスライバー列１
を作り、該スライバー列をローラーでドラフトし，トラ
ンペット２に急速に収束させることで実質的に無撚の芯
鞘型短繊維束状物（芯鞘型２層粗糸）を得た。更に該芯
鞘型２層粗糸を図２の様に、ドラフトゾーン５にドラフ
トすることにより太さ４，５００ｄの芯鞘型短繊維束状
物１１を得た。該芯鞘型短繊維束状物１１を中空スピン
ドル６の先端で連続糸状物７（ポリエステルフィラメン
ト、太さ２５０ｄ）により螺旋状に巻き付け（撚数１８
０Ｔ／ｍ）吸水性複合紡績糸を得た。As shown in FIG. 1, a short fiber bundle B composed of a roving of each short fiber bundle, a fiber other than the water absorbent fibers of the sheath component, and a water absorbent short fiber bundle A of the core component is as shown in FIG. Each roving yarn B, A, B component is sandwiched, and the ratio of short fiber bundles B, A, B is 20/60/20 (the roving yarn A, B has a core-sheath ratio of 60/40). ) Sliver row 1
Was prepared, and the sliver row was drafted by a roller and rapidly converged on the trumpet 2 to obtain a substantially sheath-and-twist core-sheath type short fiber bundle (core-sheath type two-layer roving yarn). Further, the core-sheath type two-layer roving was drafted in the draft zone 5 as shown in FIG. 2 to obtain a core-sheath type short fiber bundle 11 having a thickness of 4,500 d. The core-sheath type short fiber bundle 11 is spirally wound at the tip of the hollow spindle 6 by a continuous filament 7 (polyester filament, thickness 250d) (twist number 18).
A water-absorbent composite spun yarn was obtained.
【００３０】実施例２
実施例１と同様にして粗糸Ａ（芯成分の吸水性短繊維束
状物Ａ）、粗糸Ｂ（鞘成分の吸水性繊維以外の繊維から
なる短繊維束状物Ｂ）を得た。各々の粗糸、鞘成分の吸
水性繊維以外の繊維からなる短繊維束状物Ｂと芯成分の
吸水性短繊維束状物Ａはそれぞれ図３に示したバックロ
ーラー８に供給され、エプロンローラー９を経てテーパ
ーフロントローラー１０に送られる。このとき、エプロ
ンドラフト後の吸水性繊維以外の繊維からなる短繊維束
状物Ｂは送り出し量の高い側（ローラー径の大きい方）
へ通し、エプロンドラフト後の吸水性短繊維束状物Ａは
送り出し量の低い側（ローラー径の低い方）へ通して精
紡し、短繊維束状物Ａ、Ｂの芯鞘比率が、６０／４０に
なる様に紡糸した。テーパーフロントローラー１０を通
過後芯成分の吸水性短繊維束状物Ａに鞘成分の吸水性繊
維以外の繊維からなる短繊維束状物Ｂが被覆されて、両
短繊維束状物ＡおよびＢは実質的に無撚の芯鞘型短繊維
束状物１１（太さ４，５００ｄ）を形成する。次いで、
該芯鞘型短繊維束状物に、中空スピンドル６の先端で連
続糸状物７（ポリエステルフィラメント、太さ２５０
ｄ）を螺旋状に巻き付け（撚数１８０Ｔ／ｍ）て吸水性
複合紡績糸を得た。Example 2 In the same manner as in Example 1, roving yarn A (core component water-absorbing short fiber bundle A) and roving yarn B (sheath component other than water-absorbing fiber bundles) B) was obtained. The short fiber bundles B composed of fibers other than the water-absorbent fibers of the roving and the sheath component and the water-absorbent short fiber bundles A of the core component are respectively supplied to the back roller 8 shown in FIG. Then, it is sent to the tapered front roller 10 via 9. At this time, the short fiber bundle B composed of fibers other than the water-absorbent fibers after the apron draft is on the side where the delivery amount is high (the roller diameter is larger).
Through the apron draft, the water-absorbent short fiber bundle A is passed through the side with the lower delivery amount (the one with the smaller roller diameter) and spun to give a core-sheath ratio of the short fiber bundles A and B of 60. The yarn was spun so that it would be / 40. After passing through the taper front roller 10, the water absorbent short fiber bundle A of the core component is covered with the short fiber bundle B composed of fibers other than the water absorbent fibers of the sheath component, to obtain both short fiber bundles A and B. Form a substantially untwisted core-sheath type short fiber bundle 11 (thickness: 4,500 d). Then
A continuous filament 7 (polyester filament, thickness 250) is added to the core-sheath type short fiber bundle at the tip of the hollow spindle 6.
d) was spirally wound (twist number 180 T / m) to obtain a water-absorbent composite spun yarn.
【００３１】実施例３
短繊維束状物Ａ、Ｂの芯鞘比率が、９０／１０になる様
にした以外の方法は実施例１と同様にして吸水性複合紡
績糸を得た。Example 3 A water-absorbent composite spun yarn was obtained in the same manner as in Example 1 except that the core-sheath ratio of the short fiber bundles A and B was changed to 90/10.
【００３２】比較例１
短繊維束状物Ａ、Ｂの比率が、１００／０になる様にし
た以外の方法は実施例１と同様にして吸水性複合紡績糸
を得た。Comparative Example 1 A water absorbent composite spun yarn was obtained in the same manner as in Example 1 except that the ratio of the short fiber bundles A and B was set to 100/0.
【００３３】比較例２
短繊維束状物Ａ、Ｂの比率が、１０／９０になる様にし
た以外の方法は実施例１と同様にして吸水性複合紡績糸
を得た。Comparative Example 2 A water absorbent composite spun yarn was obtained in the same manner as in Example 1 except that the ratio of the short fiber bundles A and B was changed to 10/90.
【００３４】比較例３
捲回繊維の撚数を９５Ｔ／ｍにした以外の方法は実施例
１と同様にして吸水性複合紡績糸を得た。Comparative Example 3 A water-absorbent composite spun yarn was obtained in the same manner as in Example 1 except that the number of twists of the wound fiber was changed to 95 T / m.
【００３５】比較例４
捲回繊維の撚数を３８０Ｔ／ｍにした以外の方法は実施
例１と同様にして吸水性複合紡績糸を得た。Comparative Example 4 A water-absorbent composite spun yarn was obtained in the same manner as in Example 1 except that the twist number of the wound fiber was 380 T / m.
【００３６】実施例および比較例中の各測定値は、以下
の方法により測定し、得られた値である。
（１）吸水倍率
長さ５０ｃｍの試験片を、ビーカー中で純水に浸漬さ
せ、その後該試験片を取出し、３分吊下げ水切りを行
う。水切り後の吸水糸の質量を吸水後重量とし、吸水前
後の重量から吸水倍率を算出した。尚、表１は通信用ケ
ーブルの遮水材として用いる場合の評価結果を示し、吸
水倍率が２０倍を下回る場合、遮水効果が不充分で、水
走りによる被害が生じかねないのに対し、２０倍以上の
場合は、吸水性機能が優れていると評価される。Each measured value in Examples and Comparative Examples is a value obtained by measuring by the following method. (1) Water absorption ratio A test piece with a length of 50 cm is immersed in pure water in a beaker, and then the test piece is taken out and hung up and drained for 3 minutes. The mass of the water-absorbent thread after draining was taken as the weight after water absorption, and the water absorption ratio was calculated from the weight before and after water absorption. Table 1 shows the evaluation results when used as a water shield material for communication cables. When the water absorption ratio is less than 20 times, the water shield effect is insufficient and damage due to water running may occur. When it is 20 times or more, the water absorbing function is evaluated to be excellent.
【００３７】（２）脆弱性
長さ１００ｍの試料を、非ローラー式の金属固定ガイド
（金属棒）に擦過する様に強制的に糸道を設け４００ｍ
／ｍｉｎの速度で巻取りを実施した。なお、金属固定ガ
イド下部に吸引装置及びその先端にフィルタ−を設け、
フィルター部で落綿を捕集した。下式から、それぞれの
試料のＦＲＹ率（落綿率）を算出した。
（落綿の総重量）／（巻取った糸の総重量）×１００＝
ＦＲＹ率（％）
尚、表１は通信用ケーブルの遮水材として用いる場合の
評価結果を示し、ＦＲＹ率が０．４０％を越えると、通
信用ケーブル作製時、工程中粉塵飛散が生じ易くなり作
業性が低下するのに対し、０．４０％以下の場合は脆弱
性が改善されたと評価される。(2) Vulnerability A thread path is forcibly provided so as to rub a sample having a length of 100 m against a non-roller type metal fixing guide (metal rod) 400 m
Winding was performed at a speed of / min. A suction device and a filter are provided at the tip of the metal fixing guide,
The fallen cotton was collected by the filter section. The FRY rate (fallen cotton rate) of each sample was calculated from the following formula. (Total weight of dropped cotton) / (Total weight of wound yarn) x 100 =
FRY rate (%) Table 1 shows the evaluation results when used as a water shield material for communication cables. If the FRY rate exceeds 0.40%, dust scattering is likely to occur during the process when manufacturing communication cables. The workability deteriorates, whereas when it is 0.40% or less, the vulnerability is evaluated to be improved.
【００３８】[0038]
【表１】 [Table 1]
【００３９】比較例１および３では脆弱性が認められ、
比較例２および４では吸水性能が不充分なのに対して、
実施例１〜３は、脆弱性に優れると共に吸水性能にも充
分な効果を示した。Vulnerability was observed in Comparative Examples 1 and 3,
In Comparative Examples 2 and 4, the water absorption performance is insufficient, whereas
Examples 1 to 3 were excellent in brittleness and exhibited a sufficient effect on water absorption performance.
【００４０】[0040]
【発明の効果】如上の如く、本発明によれば、摩耗や捩
じれによるせん断応力に対して強度が改善され、後工程
での単糸切れや毛羽切れによる粉塵飛散を極小にして脆
弱性を改善し、且つその素材の極めて優れた吸水性機能
を可能なかぎりそのまま具備した吸水性複合紡績糸が得
られる。As described above, according to the present invention, the strength is improved against shear stress due to abrasion or twisting, and dust scattering due to single yarn breakage or fluff breakage in the subsequent process is minimized to improve fragility. In addition, a water-absorbent composite spun yarn having the extremely excellent water-absorbing function of the material as it is can be obtained.
【図１】吸水性複合紡績糸の製造方法において、トラン
ペット２により収束力を利用した芯鞘型短繊維束状物
（芯鞘型２層粗糸）の製造を示す前半工程の概略図であ
る。FIG. 1 is a schematic diagram of a first half step showing the production of a core-sheath type short fiber bundle (core-sheath type two-layer roving yarn) using a converging force by a trumpet 2 in a method for producing a water-absorbent composite spun yarn. .
【図２】図１の工程に続き、中空スピンドル６を利用し
た吸水性複合紡績糸の製造を示す後半工程の概略図であ
る。FIG. 2 is a schematic view of the latter half step showing the production of the water-absorbent composite spun yarn using the hollow spindle 6 subsequent to the step of FIG.
【図３】テーパーフロントローラー１０により、２種の
短繊維束状物の送出し量を変え、一方の粗糸に他方の粗
糸をこより状に包み込む方法で芯鞘型短繊維束状物（芯
鞘型２層粗糸）を製造して、吸水性複合紡績糸を製造す
る工程図である。FIG. 3 shows a core-sheath type short fiber bundle by a method in which two kinds of short fiber bundles are fed out by a taper front roller 10 and one roving is wrapped around the other roving in a twisted shape ( FIG. 3 is a process diagram for producing a water-absorbent composite spun yarn by producing a core-sheath type two-layer roving yarn).
Ａ：吸水性短繊維束状物・粗糸Ａ
Ｂ：吸水性繊維以外の繊維からなる短繊維束状物・粗糸
Ｂ
１：スライバー列
２：トランペット
３：コイラー
４：ケンス
５：ドラフトゾーン
６：中空スピンドル
７：連続糸状物
８：バックローラー
９：エプロンドラフト
１０（１０ａおよび１０ｂ）：テーパーフロントローラ
ー
１１：芯鞘型短繊維束状物
１２：吸水性複合紡績糸A: Water-absorbing short fiber bundle / roving yarn A B: Short fiber bundle / roving yarn B made of fibers other than water-absorbing fiber 1: Sliver row 2: Trumpet 3: Coiler 4: Can 5: Draft zone 6 : Hollow spindle 7: Continuous filament 8: Back roller 9: Apron draft 10 (10a and 10b): Tapered front roller 11: Core-sheath type short fiber bundle 12: Water absorbent composite spun yarn
Claims (3)
水性繊維以外の繊維からなる短繊維束状物で構成され、
芯部と鞘部の重量比率が９５：５〜２０：８０である芯
鞘型短繊維束状物と、その外周を１００〜３５０Ｔ／ｍ
で捲回してなる連続糸状物とからなることを特徴とする
吸水性複合紡績糸。1. A core portion is made of a water absorbent short fiber bundle, and a sheath portion is made of a short fiber bundle made of fibers other than the water absorbent fiber,
A core-sheath type short fiber bundle in which the weight ratio of the core part to the sheath part is 95: 5 to 20:80 and the outer periphery thereof is 100 to 350 T / m.
A water-absorbent composite spun yarn, characterized in that it comprises a continuous filament material wound by
物の太さの１／２００〜１／２の太さであることを特徴
とする請求項１の吸水性複合紡績糸。2. The water-absorbent composite spinning according to claim 1, wherein the thickness of the continuous filamentous material is 1/200 to 1/2 of the thickness of the core-sheath type short fiber bundle. yarn.
あることを特徴とする請求項１または２の吸水性複合紡
績糸。3. The water-absorbent composite spun yarn according to claim 1, wherein the core-sheath type short fiber bundle is substantially untwisted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001269855A JP4576078B2 (en) | 2001-09-06 | 2001-09-06 | Water-absorbing composite spun yarn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001269855A JP4576078B2 (en) | 2001-09-06 | 2001-09-06 | Water-absorbing composite spun yarn |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003082545A true JP2003082545A (en) | 2003-03-19 |
| JP4576078B2 JP4576078B2 (en) | 2010-11-04 |
Family
ID=19095596
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001269855A Expired - Fee Related JP4576078B2 (en) | 2001-09-06 | 2001-09-06 | Water-absorbing composite spun yarn |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009249758A (en) * | 2008-04-04 | 2009-10-29 | Toyobo Co Ltd | Core-sheath conjugate yarn having excellent covering property and abrasion resistance, and woven or knitted fabric |
| CN105459531A (en) * | 2014-08-20 | 2016-04-06 | 东丽纤维研究所（中国）有限公司 | Industrial filter cloth, and production method and use thereof |
| CN112251865A (en) * | 2020-09-25 | 2021-01-22 | 利辛县鸿瑞祥织造有限公司 | Cotton thread production process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009249758A (en) * | 2008-04-04 | 2009-10-29 | Toyobo Co Ltd | Core-sheath conjugate yarn having excellent covering property and abrasion resistance, and woven or knitted fabric |
| CN105459531A (en) * | 2014-08-20 | 2016-04-06 | 东丽纤维研究所（中国）有限公司 | Industrial filter cloth, and production method and use thereof |
| CN112251865A (en) * | 2020-09-25 | 2021-01-22 | 利辛县鸿瑞祥织造有限公司 | Cotton thread production process |
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| JP4576078B2 (en) | 2010-11-04 |
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