JP2015151651A - composite spun yarn - Google Patents
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Abstract
Description
本発明は、強力や抗ピリング性に優れた紡績糸に関するものである。 The present invention relates to a spun yarn excellent in strength and anti-pilling properties.
芯鞘構造を有する二層構造紡績糸は、例えばその製造方法は、特許文献１〜３により知られているが、芯部を鞘部のそれぞれに配する繊維の種類を種々選択することにより、各種の機能性を付与することができ構造である。例えば、芯部には強度を担わせるために強度の高い繊維を配し、鞘部に肌触りのよい繊維を配することにより、実用的な強度を有しながら、肌触りの良好な紡績糸となる。しかしながら、異なる素材を配してなる芯鞘二層構造の紡績糸は、その構造上、芯部と鞘部との境界における繊維同士の結束力が劣る。すなわち、異なる素材同士が繊維の単位で混ざり合ってなる混紡糸と比べると、繊維同士の結束力が劣るのである。繊維同士の結束力が劣ると、毛羽が発生しやすい傾向にあり、また糸の引張強力や、該紡績糸を用いた生地の抗ピリング性等についても結束力不足によって低下する懸念がある。 The two-layer structure spun yarn having a core-sheath structure, for example, its production method is known from Patent Documents 1 to 3, but by selecting various types of fibers for arranging the core part in each of the sheath parts, It is a structure that can impart various functionalities. For example, a high-strength fiber is arranged in the core portion to give strength, and a good-feel fiber is arranged in the sheath portion, so that the spun yarn has a good strength while having a practical strength. . However, a spun yarn having a core-sheath two-layer structure in which different materials are arranged is inferior in the binding force between fibers at the boundary between the core and the sheath due to its structure. In other words, the binding force between the fibers is inferior to a blended yarn in which different materials are mixed in units of fibers. If the binding force between the fibers is inferior, fluff tends to be generated, and the tensile strength of the yarn and the anti-pilling property of the fabric using the spun yarn may be reduced due to insufficient binding force.
これを解決する方法として、フィラメントによるカバリングすることや、精紡時に撚数をアップすることや、双糸化すること等が挙げられる。しかしながら、これらの手法は、風合いや肌触りが硬くなる傾向にあり、風合いを維持したままで強力や抗ピリング性を向上させることは難しかった。 As a method for solving this problem, covering with a filament, increasing the number of twists during spinning, twining, and the like can be mentioned. However, these techniques tend to have a hard texture and feel, and it has been difficult to improve strength and anti-pilling properties while maintaining the texture.
本発明は、上述した状況に鑑みて、風合いや肌触りを損ねることなく糸の毛羽を抑え、引張強力を向上させ、結果として該紡績糸を用いた生地の抗ピリング性を向上させることが可能な紡績糸を提供することを技術的な課題とする。 In view of the above-described situation, the present invention can suppress the fluff of the yarn without impairing the texture and the touch, improve the tensile strength, and as a result, can improve the anti-pilling property of the fabric using the spun yarn. Providing spun yarn is a technical issue.
本発明者は上記課題を解決するために鋭意研究の結果、本発明に到達した。 The present inventor has reached the present invention as a result of intensive studies in order to solve the above problems.
すなわち、本発明は、構成繊維を短繊維のみとする紡績糸であり、該紡績糸の横断面が、海部と島部により構成され、海部と島部はそれぞれ異なる素材の短繊維によって構成され、島部の数が２個以上であることを特徴とする複合紡績糸を要旨とする。 That is, the present invention is a spun yarn comprising only short fibers as constituent fibers, the cross section of the spun yarn is composed of a sea part and an island part, and the sea part and the island part are composed of short fibers of different materials, The gist of the composite spun yarn is characterized in that the number of islands is two or more.
次に、本発明について詳細に説明する。 Next, the present invention will be described in detail.
本発明の複合紡績糸は、構成繊維を短繊維のみとし、その横断面が海部と島部により構成されている。すなわち、海部の中に個々に独立した島部が存在している複合形態である。個々の島部が、海部を形成する短繊維によって覆われてなる形態を採用することにより、島部を形成する短繊維群、特に島部と海部との境界部分に存在する島部の短繊維群と、その島部の境界部分に存在する海部の短繊維群とが結束力を強め、また、海部を構成する短繊維群においても結束力があり、その結果として風合いや肌触りを損ねることなく、糸の毛羽を抑え、糸の引張強力や該紡績糸を用いた生地の抗ピリング性を高いレベルに保つことができるものである。なお、本発明において、長繊維を用いることなく、短繊維のみを用いて紡績糸とする理由は、短繊維は、長繊維と比べて集合体としたときに繊維同士が絡みやすく結束力を強めることができるからである。 In the composite spun yarn of the present invention, the constituent fibers are only short fibers, and the cross section thereof is composed of a sea portion and an island portion. That is, it is a composite form in which islands that are independent from each other exist in the sea. By adopting a form in which each island part is covered with short fibers forming the sea part, a short fiber group forming the island part, in particular, the short fiber of the island part existing at the boundary part between the island part and the sea part The group and the short fiber group of the sea part existing in the boundary part of the island part strengthen the cohesion force, and the short fiber group constituting the sea part also has a cohesive force, and as a result, the texture and the touch are not impaired. It is possible to suppress the fluff of the yarn and keep the tensile strength of the yarn and the anti-pilling property of the fabric using the spun yarn at a high level. In the present invention, the reason for using only short fibers as a spun yarn without using long fibers is that the short fibers are more likely to entangle with each other when compared to long fibers, and strengthen the binding force. Because it can.
本発明において、島部および海部を構成する短繊維は、それぞれ異なる素材を配する。例えば、綿、ウール、麻、竹、絹等の天然繊維、またはポリエステル、ポリアミド、アクリル、レーヨン、リヨセル、ビニロン等の化学繊維・合成繊維からなる短繊維、あるいはこれらを混紡したもの等を用いることができる。島部および海部には、繊維の性能や機能を考慮して、適宜選択してそれぞれに配することにより、得られる複合紡績糸に特有の機能を付与することができる。特に、島部に熱可塑性合成繊維を配し、海部にセルロース繊維のように親水性を有する繊維を配した場合、強力や形態安定性、吸水速乾性といった機能性と、優しい肌触りとを兼ね備えることができ好ましい。 In this invention, the short fiber which comprises an island part and a sea part distributes a respectively different raw material. For example, use natural fibers such as cotton, wool, hemp, bamboo, silk, etc., or short fibers made of chemical fibers / synthetic fibers such as polyester, polyamide, acrylic, rayon, lyocell, vinylon, or a mixture of these. Can do. The island part and the sea part can be given a function specific to the obtained composite spun yarn by appropriately selecting and arranging them in consideration of the performance and function of the fiber. In particular, when thermoplastic synthetic fibers are arranged on the islands and hydrophilic fibers such as cellulose fibers are arranged on the sea, it has both functions such as strength, form stability, and quick-drying properties, and gentle touch. This is preferable.
本発明の複合紡績糸は、島部が２個以上で、複数有しており、かつ各々の島部の短繊維束が密着することなく、個々の島部が海部の短繊維群により被覆されていることが必要である。例えば、ひとつの芯部を鞘部が覆ってなる、いわゆる芯鞘複合形態では、芯部を形成する短繊維群と鞘部を形成する短繊維群との境界での結束が弱く、引っ張りや摩耗によって鞘部の短繊維群の一部が脱落したり、強力が落ちたりする懸念がある。これに対して本発明の複合紡績糸は、複数の島部同士の間に存在する海部の短繊維群がアンカーを成して島部の短繊維束と海部の短繊維群の結束力を高め、結果として引っ張りや摩耗への耐久性が上がり、強力・抗ピリング性が向上する。 The composite spun yarn of the present invention has two or more islands and a plurality of islands, and each island is covered with a group of short fibers in the sea without the short fiber bundles in each island adhering to each other. It is necessary to be. For example, in a so-called core-sheath composite form in which one core part is covered with a sheath part, the binding at the boundary between the short fiber group forming the core part and the short fiber group forming the sheath part is weak, and tension or wear As a result, there is a concern that a part of the short fiber group in the sheath may fall off or the strength may drop. On the other hand, in the composite spun yarn of the present invention, sea short fiber groups existing between a plurality of islands form anchors to increase the binding force between the short fiber bundles in the islands and the short fiber groups in the sea parts. As a result, durability against pulling and abrasion is increased, and strength and anti-pilling are improved.
島部の個数は限定しないが、海島型構造を効果的に奏することや、個々の島部を海部によって良好に覆う形態とすることを考慮すると２〜４個が好ましい。さらには、精紡する際の安定性を考えると、より好ましくは２個である。島部が５個以上になると、各々の島部を密着させることなく海部を構成する短繊維で被覆することが難しくなり、また島部を構成する短繊維束が細くなりすぎる傾向となり、紡績時のスライバー切れ等の操業不良の原因になる懸念がある。 Although the number of islands is not limited, it is preferably 2 to 4 in view of effectively providing a sea-island structure or taking a form in which each island is satisfactorily covered by the sea. Furthermore, considering the stability at the time of spinning, more preferably two. When there are 5 or more island parts, it becomes difficult to cover each island part with the short fibers constituting the sea part, and the short fiber bundles constituting the island part tend to be too thin. There is a concern that it may cause operation failure such as running out of sliver.
複合紡績糸における島部（島部の合計）と海部の質量比は、２０：８０〜５０：５０であることが好適であり、望ましくは２０：８０〜４５：５５である。これは、海部の質量比を５０質量％以上とすることにより、２個以上存在する各々の島部が密着することなく、海部の短繊維によって被覆しやすく安定した複合断面形態を得ることができる。また、島部の比率を２０質量％以上とすることにより、島部に配する繊維の特性や機能も十分に発揮させることができる。 The mass ratio of the island portion (the sum of the island portions) and the sea portion in the composite spun yarn is preferably 20:80 to 50:50, and preferably 20:80 to 45:55. By setting the mass ratio of the sea part to 50% by mass or more, it is possible to obtain a stable composite cross-sectional shape that is easy to cover with the short fibers of the sea part without causing the two or more island parts to adhere to each other. . Moreover, the characteristic and function of the fiber distribute | arranged to an island part can fully be exhibited by the ratio of an island part being 20 mass% or more.
本発明の複合紡績糸の撚り数は特に限定されるものではないが、風合い・肌触りを損なうことなく強力や抗ピリング性を向上させることを考慮すると、撚係数Ｋが３．０〜６．０の範囲内にあることが好ましく、さらに望ましくは３．４〜４．２の範囲内にあることが好ましい。撚係数Ｋが３．０に満たない場合、撚数が低いことによる引張強力や抗ピリング性の低下が懸念され、逆に撚係数Ｋが６．０を超える場合は、撚数が高いことによって紡績糸が硬く絞まったものとなり、風合いの低下が顕著となりやすい。 The number of twists of the composite spun yarn of the present invention is not particularly limited, but in consideration of improving strength and anti-pilling properties without impairing the texture and touch, the twist coefficient K is 3.0 to 6.0. It is preferable that it exists in the range, and it is more preferable that it exists in the range of 3.4-4.2 more desirably. When the twist coefficient K is less than 3.0, there is a concern about the decrease in tensile strength and anti-pilling property due to the low twist number. Conversely, when the twist coefficient K exceeds 6.0, the twist number is high. The spun yarn is tightly squeezed and the texture is likely to be significantly reduced.
次に、本発明の紡績糸の製造方法について説明する。
まず、複合紡績糸において「島部」に配することになる繊維を芯部に配し、複合紡績糸において「海部」に配することになる繊維を鞘部に配してなる芯鞘二層構造の粗糸を作成する。得られた芯鞘二層構造の粗糸について、少なくとも２本の粗糸を、それぞれ密着させずに間隔をあけて、同時にリング精紡機のバックローラーに通す。そして、バックローラー−エプロン−フロントローラーに通して引き延ばしてドラフトした後、木管に巻き取られる前の段階で、このドラフトした芯鞘構造の粗糸同士を撚り合せて、複合紡績糸を安定的に得る。この時、リング精紡機のバックローラーに通す粗糸の本数によって、得られる紡績糸の島部の個数が決定される。すなわち、撚り合わせて複合紡績糸とした際に、芯部は紡績糸の島部となり、鞘部は撚り合わされて、鞘部同士が絡み一体化して海部を形成する。ドラフトされた複数の繊維束（粗糸）を合わせて撚ることにより、互いの繊維束における表面の毛羽が撚り込まれ、絡み一体化し、さらに、得られる紡績糸の毛羽が少なくなるという効果も奏する。
Next, a method for producing a spun yarn of the present invention will be described.
First, in the composite spun yarn, the fiber to be arranged in the “island” is arranged in the core portion, and in the composite spun yarn, the fiber to be arranged in the “sea portion” is arranged in the sheath portion. Create a coarse yarn of structure. About the obtained core-sheath two-layered roving, at least two rovings are passed through the back roller of the ring spinning machine at the same time without any close contact. Then, after drawing through the back roller-apron-front roller and drafting, the drafted core-sheath rovings are twisted together in a stage before being wound around the wood tube, and the composite spun yarn is stably obtain. At this time, the number of island portions of the spun yarn obtained is determined by the number of roving yarns passed through the back roller of the ring spinning machine. That is, when the composite spun yarn is twisted together, the core portion becomes an island portion of the spun yarn, the sheath portion is twisted together, and the sheath portions are entangled and integrated to form the sea portion. By twisting together a plurality of drafted fiber bundles (coarse yarns), the fluff on the surface of each fiber bundle is twisted and entangled, and the resulting spun yarn has less fuzz. Play.
ここで、具体的に本発明の製造方法について、図面を用いて説明する。
図１は本発明の紡績糸を得るのに必要な粗糸を作成する粗紡機の一例の概略側面図であり、図２は本発明の紡績糸を得るのに必要な粗糸を作成する粗紡機の一例の概略平面図である。詳しくは、芯部を形成する短繊維束（Ｓ１）および鞘部を形成する短繊維束（Ｓ２）をバックローラー（Ａ）−ミドルローラー（Ｂ）−エプロン（Ｃ）−フロントローラー（Ｄ）に通してドラフトさせた後、短繊維束（Ｓ１）に短繊維束（Ｓ２）を巻きつける様に被覆しながらフライヤーヘッドへと導き、芯鞘構造を成した粗糸として巻き取るまでの概要を図示したものである。
Here, the manufacturing method of the present invention will be specifically described with reference to the drawings.
FIG. 1 is a schematic side view of an example of a roving machine for producing the roving yarn necessary for obtaining the spun yarn of the present invention, and FIG. 2 is a rough drawing for producing the roving yarn necessary for obtaining the spun yarn of the present invention. It is a schematic plan view of an example of a spinning machine. Specifically, the short fiber bundle (S1) forming the core part and the short fiber bundle (S2) forming the sheath part on the back roller (A) -middle roller (B) -apron (C) -front roller (D). The draft is drawn through and then guided to the flyer head while covering the short fiber bundle (S1) so that the short fiber bundle (S2) is wound, and the outline is shown until it is wound up as a roving yarn having a core-sheath structure. It is a thing.
図３は本発明の紡績糸を得る精紡機の概略図である。詳しくは、芯鞘構造を形成した粗糸（１、１’）をバックローラー（２）に間隔を置いて導入し、バックローラー（２）−エプロン（３）−フロントローラー（４）の間、粗糸（短繊維束）同士で一定の間隔（Ｗ）を設けた状態でドラフトした後、フロントローラー（４）とスネールガイド（５）の間でドラフトされた粗糸同士を撚り合せ、複合紡績糸（６）を巻き取り得るまでの概要を図示したものである。なお、バックローラーに導入する粗糸の本数によって、複合紡績糸における島部の個数が決定される。 FIG. 3 is a schematic view of a spinning machine for obtaining the spun yarn of the present invention. Specifically, the roving (1, 1 ′) having a core-sheath structure is introduced into the back roller (2) at an interval, and between the back roller (2) -apron (3) -front roller (4), After drafting with a constant spacing (W) between the roving yarns (short fiber bundles), the roving yarns drafted between the front roller (4) and the snail guide (5) are twisted together to make composite spinning The outline until the yarn (6) can be wound up is illustrated. The number of island portions in the composite spun yarn is determined by the number of roving yarns introduced into the back roller.
ここで、バックローラーに導入される粗糸各々が密着せずに間隔を置いて導入され、フロントローラーまでドラフトされた後に合わさって撚り合わされることが重要である。ドラフト工程を密着した状態で行った場合、ドラフトされた粗糸同士がその繊維束を越えて行き来してしまい、均一な芯鞘構造を保つことが難しくなってしまう。粗糸の間隔は使用する繊維の素材や粗糸質量、ドラフト率等によって適宜調整すればよいが、２．５ｍｍ〜２０ｍｍであることが好ましく、さらに望ましくは３．５ｍｍ〜１４ｍｍである。間隔が２．５ｍｍに満たない場合にはドラフトされた粗糸同士が密着する懸念があり逆に間隔が２０ｍｍを超える場合には、バックローラーへの導入時やフロントローラーから出て加撚される段階において粗糸あるいは撚り合わせてなる繊維束が切れる等の紡績不良が発生する懸念があり、また精紡機におけるローラーの巾次第ではローラーの両端で短繊維束を把持することになり、ニップ不十分による糸質不良や紡績操業不良等に繋がる懸念がある。 Here, it is important that the roving yarns introduced into the back roller are introduced at intervals without being in close contact with each other, drafted to the front roller, and then twisted together. When the drafting process is carried out in close contact, the drafted rovings go back and forth beyond the fiber bundle, making it difficult to maintain a uniform core-sheath structure. The spacing between the roving yarns may be appropriately adjusted depending on the material of the fiber used, the roving yarn mass, the draft rate, etc., but is preferably 2.5 mm to 20 mm, and more preferably 3.5 mm to 14 mm. If the distance is less than 2.5 mm, the drafted rovings may be in close contact with each other, and conversely if the distance exceeds 20 mm, they are twisted when introduced into the back roller or from the front roller. There is a concern that spinning failure such as cutting of roving yarn or twisted fiber bundle at the stage may occur, and depending on the width of the roller in the spinning machine, the short fiber bundle will be gripped at both ends of the roller, so the nip is insufficient There is a concern that this may lead to poor yarn quality and spinning operation.
以下、本発明について実施例により具体的に説明する。なお、物性については、以下の方法により測定した。
（１）引張強さ：対象の紡績糸について、ＪＩＳ−Ｌ−１０９５一般紡績糸試験方法における９．５．１単糸引張強さに準じて測定を行い、結果を単糸引張強さ（単位：N）で示した。
（２）糸毛羽：紡績糸について、ＪＩＳ−Ｌ−１０９５一般紡績糸試験方法における「毛羽」９．２２．２Ｂ法に準じて試験を行い、結果を３ｍｍ（３ｍｍ以上のもの）および５ｍｍ（５ｍｍ以上のもの）の毛羽数（個／１０ｍ）を計測した。
（３）ピリング：紡績糸を用いて製編した編地について、ＪＩＳ−Ｌ−１０７６織物及び編物のピリング試験方法におけるA法（ＩＣＩ形試験機を用いる方法）に準じて測定を行い、結果を級判定で示した。
（４）肌触り：紡績糸を用いて製編した編地について、触感にて評価を行い、下記通り三段階で示した。
評価 ○ ： 綿のソフトな肌触りで良好な触感である。
評価 △ ： 硬さなど、やや触感で気になるところがある。
評価 × ： 硬さなど、触感で非常に気になるところがある。
Hereinafter, the present invention will be specifically described with reference to examples. In addition, about the physical property, it measured with the following method.
(1) Tensile strength: The target spun yarn was measured according to 9.5.1 single yarn tensile strength in the JIS-L-1095 general spun yarn test method, and the result was measured as the single yarn tensile strength (unit: N ).
(2) Yarn fluff: The spun yarn was tested in accordance with the “fuzz” 9.22.2B method in the JIS-L-1095 general spun yarn test method, and the results were 3 mm (3 mm or more) and 5 mm (5 mm). The number of fluffs (pieces / 10 m) was measured.
(3) Pilling: For a knitted fabric knitted using spun yarn, measurement was performed according to JIS-L-1076 woven fabric and knitted fabric pilling test method A (method using an ICI type testing machine), and the results were obtained. It was shown by class judgment.
(4) Touch: A knitted fabric knitted using spun yarn was evaluated by tactile sensation, and was shown in three stages as follows.
Evaluation ○: A soft touch of cotton and a good tactile sensation.
Evaluation △: There are places that are worrisome due to touch, such as hardness.
Evaluation ×: There are places where the feeling of touch such as hardness is very worrisome.
実施例１
図１および図２に示す構造の粗紡機を用いて、芯部をなすスライバーＳ１としてポリエステル短繊維１．７ｄｔｅｘ×３８ｍｍで構成されたスライバーを供給し、鞘部となる巻き付けスライバーＳ２としてコットンのカードスライバーを供給し、ドラフト後の各スライバーの比率をＳ１：Ｓ２＝４０：６０とし、図２におけるドラフト方向に対する芯部をなすスライバーＳ１のフライヤーヘッドへの進行角度θを６０度として、粗糸質量１８０ｇｒ／３０ｙｄ（１ｇｒ＝０．６５ｇ、１ｙｄ＝０．９１４４ｍ）、撚り数１．０Ｔ／吋の粗糸を得た。この粗糸２本を図３に示す構造の精紡機のバックローラーに間隔を７ｍｍ開けて通し、バックローラー−エプロン−フロントローラーの間でドラフト率４３．２倍にドラフトした後、フロントローラー−スネールガイド間でドラフトされた２本の繊維束を撚り合わせ、撚り数２０．８Ｔ／吋（撚係数Ｋ＝３．８）で精紡して、３０番手（英式綿番手）の本発明の複合紡績糸を得た。
Example 1
A sliver composed of polyester short fibers 1.7 dtex × 38 mm is supplied as a sliver S1 forming a core using a roving machine having the structure shown in FIGS. 1 and 2, and a cotton card is used as a wound sliver S2 serving as a sheath. The sliver is supplied, the ratio of each sliver after draft is S1: S2 = 40: 60, and the advance angle θ of the sliver S1 forming the core with respect to the draft direction in FIG. A roving yarn of 180 gr / 30 yd (1 gr = 0.65 g, 1 yd = 0.9144 m) and a twist number of 1.0 T / 吋 was obtained. The two rovings are passed through a back roller of a spinning machine having the structure shown in FIG. 3 with a gap of 7 mm, drafted between the back roller, the apron and the front roller at a draft rate of 43.2 times, and then the front roller-snail. Two fiber bundles drafted between guides are twisted and spun together with a twist number of 20.8 T / 吋 (twisting coefficient K = 3.8), and the composite of the present invention of 30th (English cotton count) A spun yarn was obtained.
得られた紡績糸を用いて、釜径３０インチ、２８ゲージのシングル丸編機で天竺編にて編み立て、過酸化水素を用いて晒加工を行った後、１７０℃×３０秒の仕上セットを行って、目付１４３ｇ／ｍ２の本発明の複合紡績糸からなる生地を得た。 Using the obtained spun yarn, a 30-inch, 28-gauge single circular knitting machine is used for knitting in a tense knitting machine, and after bleaching using hydrogen peroxide, a finishing set of 170 ° C. × 30 seconds is performed. And a fabric made of the composite spun yarn of the present invention having a basis weight of 143 g / m 2 was obtained.
実施例２
粗糸質量を１３０ｇｒ／３０ｙｄとしたこと以外は、実施例１と同様にして粗紡を行い、得られた粗糸３本を図３に示す構造の精紡機のバックローラーに間隔を４ｍｍづつ開けて通し、バックローラー−エプロン−フロントローラーの間でドラフト率４９．６倍にドラフトした後、フロントローラー−スネールガイド間でドラフトされた３本の繊維束を撚り合わせ、撚り数２０．８Ｔ／吋（撚係数Ｋ＝３．８）で精紡して、３０番手（英式綿番手）の本発明の複合紡績糸を得た。
Example 2
Except that the weight of the roving yarn was set to 130 gr / 30 yd, the roving was performed in the same manner as in Example 1, and the obtained three roving yarns were spaced apart by 4 mm on the back roller of the spinning machine having the structure shown in FIG. Then, after drafting a draft rate of 49.6 times between the back roller, the apron, and the front roller, the three fiber bundles drafted between the front roller and the snail guide were twisted, and the twist number was 20.8 T / 吋 ( Spinning was performed with a twisting coefficient K = 3.8) to obtain a composite spun yarn of the present invention having a count of 30 (English cotton count).
得られた紡績糸を用いて、実施例１と同様にして製編し、目付１４７ｇ／ｍ２の本発明の複合紡績糸からなる生地を得た。 The obtained spun yarn was knitted in the same manner as in Example 1 to obtain a fabric made of the composite spun yarn of the present invention having a basis weight of 147 g / m 2 .
実施例３
粗紡段階におけるドラフト後の各スライバーの比率をＳ１：Ｓ２＝３０：７０とし、精紡における撚り数を３１．２Ｔ／吋（撚係数Ｋ＝５．７）としたこと以外は実施例１と同様にして紡績を行い、３０番手の本発明の複合紡績糸を得た。
Example 3
Example 1 except that the ratio of each sliver after draft in the roving stage was S1: S2 = 30: 70, and the number of twists in fine spinning was 31.2 T / 吋 (twisting coefficient K = 5.7). Spinning was carried out to obtain 30th composite spun yarn of the present invention.
得られた紡績糸を用いて、実施例１と同様にして製編し、目付１３５ｇ／ｍ２の本発明の複合績糸からなる生地を得た。 The obtained spun yarn was knitted in the same manner as in Example 1 to obtain a fabric made of the composite spun yarn of the present invention having a basis weight of 135 g / m 2 .
比較例１
実施例１と同様の手法にて、芯部：鞘部の比率が４０：６０、粗糸質量３２０ｇｒ／３０ｙｄ，撚り数１．０Ｔ／吋の粗糸を得た。この粗糸１本のみを図３に示す構造の精紡機のバックローラーに通し、バックローラー−エプロン−フロントローラーの間でドラフト率４０．７倍にドラフトした後、撚り数２０．８Ｔ／吋（撚係数Ｋ＝３．８）で精紡して、３０番手（英式綿番手）の芯鞘型の紡績糸を得た。
Comparative Example 1
In the same manner as in Example 1, a roving yarn having a core portion: sheath portion ratio of 40:60, a roving mass of 320 gr / 30 yd, and a twist number of 1.0 T / 吋 was obtained. Only one of these rovings is passed through the back roller of the spinning machine having the structure shown in FIG. 3 and drafted at a draft rate of 40.7 times between the back roller, the apron and the front roller, and then the number of twists of 20.8 T / 吋 ( Spinning was performed with a twisting coefficient K = 3.8) to obtain a core-sheath type spun yarn of 30 count (English cotton count).
得られた紡績糸を用いて、実施例１と同様にして製編し、目付１３５ｇ／ｍ２の芯鞘型の紡績糸からなる生地を得た。 The obtained spun yarn was knitted in the same manner as in Example 1 to obtain a fabric made of a core-sheath spun yarn having a basis weight of 135 g / m 2 .
比較例２
ポリエステル短繊維１．７ｄｔｅｘ×３８ｍｍとコットンを質量比でポリエステル：綿＝４０：６０となる様に均一に混紡された粗糸質量１８０ｇｒ／３０ｙｄ，撚り数１．０Ｔ／吋の粗糸を用いたこと以外は実施例１と同様に紡績を行い、３０番手（英式綿番手）の混紡糸を得た。
Comparative Example 2
A roving yarn having a weight of 180 gr / 30 yd and a twisting number of 1.0 T / 吋, which was uniformly blended so that polyester short fiber 1.7 dtex × 38 mm and cotton in a mass ratio of polyester: cotton = 40: 60, was used. Except for this, spinning was carried out in the same manner as in Example 1 to obtain a blend yarn of 30th (English cotton count).
得られた紡績糸を用いて、実施例１と同様にして製編し、目付１３７ｇ／ｍ２の混紡糸からなる生地を得た。 The obtained spun yarn was knitted in the same manner as in Example 1 to obtain a fabric made of a blended yarn having a basis weight of 137 g / m 2 .
実施例１〜３、比較例１，２で得られた紡績糸および生地物性を評価し、その結果を表１に示す。 The spun yarns and fabric properties obtained in Examples 1 to 3 and Comparative Examples 1 and 2 were evaluated, and the results are shown in Table 1.
表１に示す通り、実施例１〜３は、紡績糸の強力に優れ、生地とした際にもクリアな表面感と抗ピリング性・肌触り共に良好な素材を得られることが示された。
As shown in Table 1, it was shown that Examples 1 to 3 were excellent in spun yarn strength, and even when made into a fabric, a clear material with good surface feeling, anti-pilling properties and touch could be obtained.
これに対し、比較例１は、芯鞘二層構造の紡績糸であり、実施例に比べて、紡績糸の引張強力や抗ピリング性が劣り、また毛羽が多く、結果として得られた生地についても毛羽の目立つものであった。 On the other hand, Comparative Example 1 is a spun yarn having a core-sheath two-layer structure, and the tensile strength and anti-pilling property of the spun yarn are inferior to those of the Examples. Even the fuzz was conspicuous.
比較例２は、２種の繊維が混じり合った混紡状態の混紡糸であり、ポリエステル短繊維が糸の表層にも露出しており、生地にした際に肌触りが劣り、さらにはこの表面に出たポリエステル短繊維の毛羽を核にしてピリングが悪化するものであった。
Comparative Example 2 is a mixed spun yarn in which two types of fibers are mixed, and the polyester short fibers are exposed on the surface layer of the yarn. Further, the pilling deteriorated with the fluff of short polyester fibers as the core.
Claims (4)
At least two core-sheath two-layered rovings are simultaneously passed through the ring spinning machine without being closely attached to the back roller of the ring spinning machine. A method for producing a composite spun yarn, characterized in that a sea spun cross-section composite spun yarn is obtained by twisting together these roving yarns.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107012560A (en) * | 2017-05-17 | 2017-08-04 | 汶上如意技术纺织有限公司 | A kind of apparatus and method for manufacturing rove covering yarn |
| KR20180054178A (en) * | 2016-11-15 | 2018-05-24 | 삼일방 (주) | Process Of Producing Siro―Spun Compact Yarn Having Excellent Uniformity And Friction Resistance And Process Of Producing Knit Having Excellent Twist Resistance Using Thereby |
| CN114293299A (en) * | 2021-12-31 | 2022-04-08 | 南通鹏翔织造有限公司 | Spinning process of polylactic acid filament polyester wheel blended double-core composite yarn |
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| JP2003213535A (en) * | 2002-01-11 | 2003-07-30 | Unitika Textiles Ltd | Spun twisted yarn and method for producing the same |
| JP2004183191A (en) * | 2002-10-10 | 2004-07-02 | Unitika Textiles Ltd | Stretch spun yarn, woven or knitted fabric and method for producing the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2003213535A (en) * | 2002-01-11 | 2003-07-30 | Unitika Textiles Ltd | Spun twisted yarn and method for producing the same |
| JP2004183191A (en) * | 2002-10-10 | 2004-07-02 | Unitika Textiles Ltd | Stretch spun yarn, woven or knitted fabric and method for producing the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20180054178A (en) * | 2016-11-15 | 2018-05-24 | 삼일방 (주) | Process Of Producing Siro―Spun Compact Yarn Having Excellent Uniformity And Friction Resistance And Process Of Producing Knit Having Excellent Twist Resistance Using Thereby |
| KR101869412B1 (en) * | 2016-11-15 | 2018-06-20 | 삼일방 (주) | Process Of Producing Siro―Spun Compact Yarn Having Excellent Uniformity And Friction Resistance |
| CN107012560A (en) * | 2017-05-17 | 2017-08-04 | 汶上如意技术纺织有限公司 | A kind of apparatus and method for manufacturing rove covering yarn |
| CN114293299A (en) * | 2021-12-31 | 2022-04-08 | 南通鹏翔织造有限公司 | Spinning process of polylactic acid filament polyester wheel blended double-core composite yarn |
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