JPS60104521A - Conjugated polyester yarn - Google Patents

Abstract

PURPOSE:The titled yarn having suppressed frictional resistance of surface and improved wear resistance, by carrying out conjugated spinning in such a way that polyester containing a specific ratio of organic silicone compound (e.g., dimethylpolysiloxane, etc.) is contained in the surface of yarn. CONSTITUTION:An organic silicone compound (e.g., dimethylpolysiloxane, etc.) is added to a reaction system usually in a period from end of esterification to end of polycondensation of polyester, 0.1-30wt% silicon is added to the polyester, and conjugated spinning is carried out in such a way that the prepared polyester is contained at least part (preferably the whole) of yarn surface, to give the desired yarn. Conjugated yarn of sheath core type comprising the organic silicone compound-containing polyester as a sheath component is preferable as the conjugated yarn, and the sheath component has preferably 8-20% section of yarn. EFFECT:Sewing thread suppressing a phenomenon called ''FUJIYORI'' wherein a single yarn (twisted yarn) is entangled can be provided.

Description

【発明の詳細な説明】 く技術分野〉 本発明は表面摩擦特性を改善したポリエステ１−１６１ ル繊維に関するものである。１寺に、ポリエステル繊維
の摩擦抵抗を低下させることにより、ポリエステル繊維
の摩擦発熱を低下させ、耐摩耗性を向上させた複合ポリ
エステルｍ、ｍに関する。DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to polyester 1-161 fibers with improved surface friction properties. Firstly, the present invention relates to composite polyesters m and m in which the frictional heat generation of the polyester fibers is reduced and the abrasion resistance is improved by reducing the frictional resistance of the polyester fibers.

〈従来技術とその問題点〉 ポリエステル繊維はその優れた風合、強度、耐久性など
の点から、衣料用途をはじめ各種産業資材用途にも広（
用いられている。特に近年ポリエステル繊維の品質向上
および製品コストなどの利点から産業資材用途において
もナイロンからポリエステルへの累月転換が進められ、
産業用途におけるポリエステルの比重が高まっている。<Conventional technology and its problems> Due to its excellent texture, strength, and durability, polyester fiber is widely used in clothing and various industrial materials.
It is used. Particularly in recent years, due to the advantages of improved quality and product cost of polyester fibers, the switch from nylon to polyester has been promoted in industrial material applications.
The importance of polyester in industrial applications is increasing.

しかしながら、ポリエステルの産業用途への進出におい
て、品質特性の点でなおい（つかの問題点がある。その
ひとつが摩擦抵抗であり、縫糸用途やシートベルト用途
でその特性の要求が高まっている。ポリエステル４１ｉ
維が縫糸用途で広く使用されているのは、縫糸としての
強度が高いことは勿論のこと、従来から用い２− られていたナイロンに比較すると、より低収縮率の縫糸
が得られるためである。縫糸が低収縮率であると、縫糸
の色相が均一になり、また衣服等の繊維製品においては
縫目の持上がりがなく、縫目がきれいにそろい商品価値
が高まるなどの利点があり、そのため好んで低収縮率の
ポリエステルｌｌＮが縫糸として使用されている。However, when polyester is used for industrial purposes, there are still some problems in terms of quality characteristics. One of these is frictional resistance, and the demand for this characteristic is increasing for sewing thread and seat belt applications. polyester 41i
The reason why fibrous fibers are widely used for sewing threads is not only because they have high strength as sewing threads, but also because they can produce sewing threads with a lower shrinkage rate than the conventionally used nylon. . If the sewing thread has a low shrinkage rate, the hue of the sewing thread will be uniform, and in textile products such as clothing, there will be no lifting of the seams, the seams will be neatly aligned, and the product value will increase. Therefore, polyester 1N having a low shrinkage rate is used as the sewing thread.

しかし、このようなポリエステル縫糸を高速のミシンに
使用し、厚地の生地を縫う場合には針と糸との摩擦発熱
が大きくなり、高温になった針の熱によってポリエステ
ル縫糸が切断するという問題がある。また、シートベル
ト用途においては、シートベルト着用率の向上により、
あるいはパッシブシートベルトの開発などに呼応して耐
摩耗性の要求が強まっている。However, when using such polyester sewing thread on a high-speed sewing machine to sew thick fabrics, the friction between the needle and the thread generates a lot of heat, causing the problem that the polyester sewing thread may break due to the heat of the high-temperature needle. be. In addition, in seat belt applications, due to the improved seat belt wearing rate,
Also, in response to the development of passive seat belts, the demand for wear resistance is increasing.

ポリエステル繊維の摩耗抵抗の低下の改善については、
ポリエステル中に粒子を存在させて糸の表面に小さな突
起を設ける方法、または、特殊な油剤を付与する方法が
主であった。これらの方法によっても、摩擦抵抗はある
程度改善　３− されるが、例えば縫糸用途における縫製時の光切断とい
う問題を十分に解決するまでには至らなかった。For improving the abrasion resistance of polyester fibers,
The main methods used were to create small protrusions on the surface of the yarn by making particles exist in polyester, or to apply a special oil agent. These methods also improve frictional resistance to some extent, but they have not sufficiently solved the problem of light cutting during sewing, for example in sewing thread applications.

〈発明の目的〉 本発明者は、この問題の解決のため鋭意検問した結果有
機シリコーン化合物を含有したポリエステルを糸表面の
少なくとも一部に配置したポリエステル１ｌｉｌｉとす
ることで解決できることを見い出したものでえる。<Purpose of the Invention> As a result of extensive investigation to solve this problem, the inventor of the present invention found that the problem can be solved by using polyester 1lili in which polyester containing an organic silicone compound is disposed on at least a part of the thread surface. I can do it.

すなわら、縫糸の場合は原糸に通常下撚および上撚りを
入れて製品化する。この撚りを入れる際、特に上撚りを
入れる際、一本の糸（撚り糸）がからむ「藤撚り」と称
する現象が起こり製品の品質を低下させることがある。In other words, in the case of sewing thread, the raw thread is usually first twisted and first twisted before being made into a product. When adding this twist, especially when adding ply twist, a phenomenon called "wisteria twisting" in which a single thread (twist) becomes entangled may occur, which may reduce the quality of the product.

「藤撚り」の現象は下撚り糸品質の微妙なバラツキのた
め、上撚り後の縫糸の一部にクルジを生じる現象であり
、多くの場合原糸品質のバラツキにより生じる。ここで
、有機シリコーン化合物を原糸全体に含有させる場合に
は「藤撚り」発生率が高くなり、実質上縫糸用にはこの
ような糸は使用できないが、本発明の複合ポリエステル
繊維を用いると「藤撚り１発生率は通常のポリエステル
縫糸程度になり、本発明によって初めて有機シリコーン
化合物を含有した繊維が実用的に使用可能になったので
あった。The phenomenon of "wisteria twisting" is a phenomenon in which a part of the sewing thread after final twisting becomes crooked due to subtle variations in the quality of the first twist, and is often caused by variations in the quality of the raw thread. Here, when the organic silicone compound is contained in the entire yarn, the occurrence rate of "wisteria twist" increases, and such yarn cannot be used for sewing threads, but when the composite polyester fiber of the present invention is used, ``The incidence of wisteria twist 1 was comparable to that of ordinary polyester sewing thread, and the present invention made it possible for practical use of fibers containing organic silicone compounds for the first time.

〈発明の構成〉 すなわち、本発明はケイ素としてｏ、ｉｉ量％以上３０
重量％以上となるように有機シリコーン化合物を含有し
たポリエステ繊維が糸表面の少なくとも一部を占めるこ
とを特徴とする複合ポリエステル繊維である。<Structure of the invention> That is, the present invention provides silicon with an amount of o, ii of 30% or more.
The present invention is a composite polyester fiber characterized in that polyester fiber containing an organic silicone compound in an amount of at least % by weight occupies at least a portion of the yarn surface.

有機シリコーン化合物としては、各種の有機シリコーン
化合物を用いることが可能であるが、ポリエステルの重
合、紡糸の温度において揮発しにくいものが好適である
。特に、１５０℃で２４時間加熱処理した際の減量率が
１％以下のものが好ましい。具体例としてはジメチルポ
リシロキリ−ン、ジフェニルポリシロキサン、メチルフ
ェニルポリシロキサンなどを単独または混合使用するこ
とができる。有機シリコーン化合５　１つ 　４− 物を含有したポリエステルの有機シリコーン化合物の配
合量は、シリコーン原子の量として０．１重量％以上３
０蛋量％以下になるようにする必要があり、また０、３
重量％以上１５重石％以下が好ましい。０．１重量％未
満であると摩擦抵抗が不充分であり、一方３０重量％を
越えると溶融紡糸時の流動性が他のポリエステルと大き
く異なるため、紡糸性および延伸性が低下し、また繊維
どした時は強伸磨などの特性が不充分となり好ましくな
い。有機シリコーン化合物のポリエステルへの添加時期
は通常、エステル化またはエステル交換反応工程以降の
いずれの工程でも可能である。しかし、作業の効率化お
よび有機シリコーン化合物をポリエステルの中で−Ｌ分
に均一に配合するためには、エステル化またはエステル
交換反応終了から重縮合反応終了までの時期に添加する
のが好ましい。Various organic silicone compounds can be used as the organic silicone compound, but those that are difficult to volatilize at the temperatures of polyester polymerization and spinning are preferred. In particular, those having a weight loss rate of 1% or less when heat treated at 150° C. for 24 hours are preferred. Specific examples include dimethylpolysiloxane, diphenylpolysiloxane, and methylphenylpolysiloxane, which may be used alone or in combination. The amount of the organic silicone compound in the polyester containing the organic silicone compound 5 is 0.1% by weight or more as the amount of silicone atoms3.
It is necessary to keep the protein amount below 0%, and also 0,3
It is preferably at least 15% by weight and at most 15% by weight. If it is less than 0.1% by weight, the frictional resistance will be insufficient, while if it exceeds 30% by weight, the fluidity during melt spinning will be significantly different from that of other polyesters, resulting in decreased spinnability and drawability, and the fiber If this happens, the properties such as strong elongation will become insufficient, which is not desirable. The organic silicone compound can be added to the polyester at any step after the esterification or transesterification step. However, in order to improve work efficiency and to uniformly blend the organosilicone compound into the -L component in the polyester, it is preferable to add it between the end of the esterification or transesterification reaction and the end of the polycondensation reaction.

本願発明で特定した邑の有機シリコーン化合物を含むポ
リエステルはテレフタル酸、イソフタル酸、ナフタリン
−２，６−ジカルボン酸、９　６− α、β−（４−カルボキシフェノキシ）エタン、４．４
′−ジカルボキシジフェニル、５−ナトリウムスルホイ
ソフタル酸などの芳香族ジカルボン酸もしくはアジピン
酸、セバシン酸などの脂肪族ジカルボン酸、またはこれ
らのエステル類とエチレングリコール、ジエチレングリ
コール、１．４−ブタンジオール、ネオペンチルグリコ
ール、シクロヘキサン−１，４−ジメタツール、ポリエ
チレングリコール、ポリテトラメチレングリコールなど
のジオール化合物とから合成される繊維形成性ポリエス
テルであり、特に構成単位の８０モル％以上が、特には
９０モル％以上がエチレンテレフタレート単位であるポ
リエステルが好ましい。また、さらに前記のジカルボン
酸成分およびジオール成分以外にオキシカルボン酸類、
あるいは公知の親水化剤、易染化剤、紫外線吸収剤など
を共重合またはブレンドして導入することが可能である
。Polyesters containing Omu's organic silicone compounds specified in the present invention include terephthalic acid, isophthalic acid, naphthalene-2,6-dicarboxylic acid, 96-α, β-(4-carboxyphenoxy)ethane, 4.4
'-Dicarboxydiphenyl, aromatic dicarboxylic acids such as 5-sodium sulfoisophthalic acid, or aliphatic dicarboxylic acids such as adipic acid, sebacic acid, or their esters together with ethylene glycol, diethylene glycol, 1,4-butanediol, neo It is a fiber-forming polyester synthesized from a diol compound such as pentyl glycol, cyclohexane-1,4-dimetatool, polyethylene glycol, polytetramethylene glycol, etc., and especially contains 80 mol% or more of the constituent units, especially 90 mol% or more. Polyesters in which are ethylene terephthalate units are preferred. Furthermore, in addition to the dicarboxylic acid component and diol component, oxycarboxylic acids,
Alternatively, it is possible to copolymerize or blend known hydrophilic agents, dye-facilitating agents, ultraviolet absorbers, etc., and introduce them.

有機シリコーン化合物を含む前記したポリエステル以外
の部分のポリエステルは有機シリコーン化合物を含む前
記したポリエステルとポリニスデルの基本構成が同一の
構成成分であってもよい。The polyester other than the above-mentioned polyester containing an organic silicone compound may have the same basic composition as the above-mentioned polyester containing an organic silicone compound and polynisdel.

本発明における複合繊維としては、有機シリコーン化合
物を含有したポリエステルが糸表面の少なくとも一部を
占めていることが必要であり、有機シリコーン化合物を
含有したポリエステルが複合糸断面の全周長の５０％以
上を占めることが好ましくは８０％以上さらに好ましい
。As for the composite fiber in the present invention, it is necessary that polyester containing an organic silicone compound occupies at least a part of the yarn surface, and the polyester containing an organic silicone compound accounts for 50% of the total circumference of the cross section of the composite yarn. It is more preferable that it accounts for 80% or more.

具体的な複合繊維の形態としては、図１〜４に示すよう
な種々の複合断面が可能である。As specific forms of composite fibers, various composite cross sections as shown in FIGS. 1 to 4 are possible.

本発明は、芯鞘複合繊維とし、特に有機シリコーン化合
物を含むポリエステルを鞘成分とすることが望ましい。In the present invention, it is preferable that the core-sheath composite fiber is made of polyester containing an organic silicone compound as the sheath component.

芯鞘複合糸は、たとえば特公昭４３−３００１１号公報
、特公昭４７−３３７２４号公報などに開示された紡糸
方法を採用して製造することができる。複合糸の断面形
状は３葉面面状等の多葉断面糸とすることも可能である
が、縫糸、シートベルトなどの用途では特に高強力糸が
望まれるため、円形断面が望−７＝ ましい。鞘成分は繊維断面の５％以上３０％以下、特に
好ましくは８％以上２０％以下である。The core-sheath composite yarn can be manufactured by employing the spinning method disclosed in, for example, Japanese Patent Publication No. 43-30011 and Japanese Patent Publication No. 47-33724. The cross-sectional shape of the composite yarn can be a multi-lobal cross-sectional yarn, such as a trilobal cross-section, but a circular cross-section is desirable because a high-strength yarn is particularly desired for applications such as sewing threads and seat belts. Delicious. The sheath component accounts for 5% or more and 30% or less of the fiber cross section, particularly preferably 8% or more and 20% or less.

鞘成分の厚さは実質的に一様であることが好ましい。な
お、鞘成分の厚さが実質的に一様であるとは鞘成分の平
均の圧さＴに対して、糸横断面の任意の場所での鞘成分
の厚さがＴ±０．２５Ｔ以内にあることを指す。Preferably, the thickness of the sheath component is substantially uniform. Note that the thickness of the sheath component is substantially uniform when the thickness of the sheath component at any location on the yarn cross section is within T ± 0.25T with respect to the average pressure T of the sheath component. refers to something in

芯成分の固有粘度は０．６０以上にすることが好ましい
。本発明の複合糸は、高強力であることを望まれる用途
での使用が多くそのためには芯成分で充分な強力を出さ
せるようにすることが有利である。有機シリコーン化合
物を含有させる鞘成分は有機シリコーン化合物が一部三
次元化し強力発現に対して不利になる場合が多く、その
ためにも高重合度のポリエステルを芯成分に利用するこ
とが好ましい。なお、鞘成分については芯成分の溶融粘
度の０．７５〜１゜２５倍にすると最も高強力の複合繊
維が得られる。これは通常延伸糸強度を向上させるには
固有粘度を増大させることが有利であるが、不発８− 明では、芯成分と鞘成分の溶融粘度を近似させると強力
が最も高（なる特徴がある。これは有機シリコーン化合
物含有の特徴のひとつである。The intrinsic viscosity of the core component is preferably 0.60 or more. The composite yarn of the present invention is often used in applications where high strength is desired, and for this purpose it is advantageous to make the core component exhibit sufficient strength. In the case of a sheath component containing an organic silicone compound, a portion of the organic silicone compound becomes three-dimensional, which is often disadvantageous for developing strength, and for this reason, it is preferable to use polyester with a high degree of polymerization as the core component. The highest strength composite fiber can be obtained by setting the sheath component to 0.75 to 1.25 times the melt viscosity of the core component. Normally, it is advantageous to increase the intrinsic viscosity in order to improve the strength of the drawn yarn, but in the case of unexploited yarns, the strength is highest when the melt viscosity of the core component and the sheath component are approximated. This is one of the characteristics of containing organic silicone compounds.

なお、製糸および後加工の段階で表面摩擦抵抗軽減のた
めに、種々の油剤、樹脂等を本発明の繊維に付与し、品
質の向上をはかることもできる。In addition, in order to reduce surface frictional resistance at the stage of spinning and post-processing, various oils, resins, etc. can be applied to the fiber of the present invention in order to improve the quality.

〈発明の効果ン 本発明の複合ポリエステル繊維は糸表面に有機シリコー
ン化合物を含有したポリエステルが存在するため、強度
、伸度などの原糸特性を通常のポリエステル糸に近いレ
ベルに保持し、かつ摩擦特性の大幅な向上をはかったも
のである。<Effects of the Invention> Since the composite polyester fiber of the present invention contains polyester containing an organic silicone compound on the yarn surface, it maintains yarn properties such as strength and elongation at a level close to that of ordinary polyester yarn, and has low friction. This has significantly improved characteristics.

特に、縫糸、シートベルトなど摩擦要求特性の大きい用
途に好適である。It is particularly suitable for applications that require high friction characteristics, such as sewing threads and seat belts.

以下、実施例により本発明の詳細な説明する。Hereinafter, the present invention will be explained in detail with reference to Examples.

なお、固有粘度は２５℃のＯ−クロロフェノール中で測
定した値、溶融粘度は宝工業社製メルトインデクサ−（
ＭＸ−１０ｌ−Ｂ）で測定した。In addition, the intrinsic viscosity is the value measured in O-chlorophenol at 25°C, and the melt viscosity is the value measured using Takara Kogyo's melt indexer (
MX-10l-B).

実施例　１ テレフタル酸ジメチル１００！量部、エチレングリコー
ル６０重量部、および酢酸マンガン０．０４［を部を通
常のエステル交換反応器に入れエステル交換を行なった
。エステル交換反応物にリン酸０．０２重量部、三酸化
アンチモン０．０３重量部、酸化チタン０．５重量部と
ジメチルポリシロキサン（粘度ｉ　ｏｏｏセンチポイズ
（２５℃）、ケイ素原子含有１１３７．９％、揮発分０
．３重間％）５重量部を添加し、通常のポリエステル重
合缶で２７５℃、３時間の重合を行なった。なお、重合
前半の昇温および減圧の方法は２５０℃から２７５℃ま
で１時間をかけ、また常圧から０．５１１１１１１Ｈ（
］まで１１時かけた後、重合した。得られたポリマ（Ａ
ポリマという）の固有粘度は０．６７９であった。Example 1 Dimethyl terephthalate 100! 60 parts by weight of ethylene glycol and 0.04 parts by weight of manganese acetate were placed in a conventional transesterification reactor to carry out transesterification. The transesterification product contains 0.02 parts by weight of phosphoric acid, 0.03 parts by weight of antimony trioxide, 0.5 parts by weight of titanium oxide, and dimethylpolysiloxane (viscosity i ooo centipoise (25°C), silicon atom content 1137.9%). , volatile content 0
．． 3 parts by weight) was added, and polymerization was carried out at 275° C. for 3 hours in an ordinary polyester polymerization can. The method for increasing temperature and reducing pressure in the first half of the polymerization was to raise the temperature from 250°C to 275°C for 1 hour, and to increase the temperature from normal pressure to 0.5111111H (
] After 11 o'clock, polymerization occurred. The obtained polymer (A
The intrinsic viscosity of the polymer was 0.679.

Ａポリマの重合において、ジメチルポリシロキサンを添
加しない以外はＡポリマと同様にエステル交換および重
合を行ないポリマ（Ｂポリマという）を得た。固有粘度
は０．６９５であつた。In the polymerization of Polymer A, transesterification and polymerization were carried out in the same manner as Polymer A except that dimethylpolysiloxane was not added to obtain a polymer (referred to as Polymer B). The intrinsic viscosity was 0.695.

Ｂポリマを芯成分に、またＡポリマを鞘成分に用いて紡
糸温度２９５℃、紡糸速度１２００ｍ、／ｍｉｎにて複
合紡糸して、丸断面の芯鞘同心円複合糸を得た。ひきつ
づき延伸速１１ｉ［４００ｎ＋／　ｍ　Ｉ　ｎ　％熱ピ
ン温度１２０℃、延伸倍率３．３倍で延伸を行ない、７
５デニール２４フイラメントの延伸糸とした。延伸糸の
強度は５．２ｇ／ｄ　Ｍ伸度は３０％であった。この芯
鞘複合糸において、鞘成分が全体に占める割合は断面積
で１５％であり、鞘成分は実質的に同じ厚さを有してい
た。Using Polymer B as a core component and Polymer A as a sheath component, composite spinning was performed at a spinning temperature of 295° C. and a spinning speed of 1200 m/min to obtain a core-sheath concentric composite yarn with a round cross section. Subsequently, stretching was carried out at a stretching speed of 11i [400n+/m I n %, a hot pin temperature of 120°C, and a stretching ratio of 3.3 times.
A drawn yarn of 5 denier and 24 filaments was prepared. The strength of the drawn yarn was 5.2 g/d, and the M elongation was 30%. In this core-sheath composite yarn, the sheath component accounted for 15% of the total cross-sectional area, and the sheath components had substantially the same thickness.

この複合糸をキレツブスタン法にて摩擦物性評価した。The frictional properties of this composite yarn were evaluated using the Killetsbustan method.

（評価条件） シリンダー”：静止、材質　鋼、半径０．５インチ巻取
速度：　７５ｍ　／ｍｉｎ 初張力　＝２５ｇ 温度　：２１°Ｃ 湿度　＝６５％ １１− 複合糸の摩擦係数は０．２１であり、比較のためにジメ
チルポリシロキサンを添加しない原糸の摩擦係数を測定
したところ０．３２であった。(Evaluation conditions) Cylinder: stationary, material: steel, radius: 0.5 inch Winding speed: 75 m/min Initial tension = 25 g Temperature: 21°C Humidity = 65% 11- The coefficient of friction of the composite yarn is 0.21. For comparison, the coefficient of friction of the yarn to which no dimethylpolysiloxane was added was measured and found to be 0.32.

実施例　２ 実施例１におけるジメチルポリシロキサンのかわりにメ
チル）フェニルポリシロキサン（粘度１５０センチスト
ークス（２５℃）、揮発分０．３重量％　、ケイ素２０
．６％）８重量部を添加した以外　実施例１と同様に重
合し、固有粘洩０．６８２のポリマ（Ａ−ポリマと称す
）を得た。実施例１と同様の条件でＡ−ポリマを鞘成分
に、Ｂポリマを芯ポリマに用いて紡糸、延伸を行なった
。鞘成分が複合糸全体に占める割合は断面積で１０％で
あり、鞘成分は実質的に均一な厚さを有していた。摩擦
係数は０．２０であり、有機シロキサンを添加しない糸
の０．３２より良好な値を示した。Example 2 In place of dimethylpolysiloxane in Example 1, methyl) phenylpolysiloxane (viscosity 150 centistokes (25°C), volatile content 0.3% by weight, silicon 20
．． Polymerization was carried out in the same manner as in Example 1 except that 8 parts by weight (6%) was added to obtain a polymer (referred to as A-polymer) having an intrinsic leakage of 0.682. Spinning and drawing were performed under the same conditions as in Example 1 using A-polymer as the sheath component and B-polymer as the core polymer. The proportion of the sheath component in the entire composite yarn was 10% in terms of cross-sectional area, and the sheath component had a substantially uniform thickness. The coefficient of friction was 0.20, which was better than the 0.32 of the yarn without added organic siloxane.

実施例　３ １２一 ついで実施例１の複合糸をイタリ一式撚糸機を用いて下
撚り８５０回／ｍ（Ｓ撚り）および上撚り５５０回／ｍ
（Ｚ撚り）の撚りを入れ１２５℃の蒸気で４５分間熱セ
ツトした。比較のため、実施例１のジメチルポリシロキ
サンをポリエステル糸断面全体に５重量部添加した糸（
Ｃ糸と称す）および有機シリコーン化合物を添加しない
通常のポリエステル糸（Ｄ糸と称す）も実施例１に準じ
て製糸を行ない撚りをか【プた。Example 3 The composite yarn of Example 1 was first twisted 850 times/m (S twist) and final twisted 550 times/m using an Itari set twisting machine.
(Z twist) was added and heat set with steam at 125°C for 45 minutes. For comparison, a yarn in which 5 parts by weight of the dimethylpolysiloxane of Example 1 was added to the entire cross section of the polyester yarn (
A normal polyester yarn (referred to as C yarn) and an ordinary polyester yarn (referred to as D yarn) to which no organic silicone compound was added were also spun and twisted in accordance with Example 1.

「藤撚り」発生の状況は次の通りであった。The circumstances under which "wisteria twisting" occurred were as follows.

原　糸　藤撚り発生率 実施例１の複合糸　０．４％ Ｃ糸　１０．　Ｏ％ Ｄ　糸　０．　１　％ 比較実施例１ 実施例１において、複合糸の鞘成分のポリマ中のジメチ
ルポリシロキサンのケイ素原子換算１４− ノｍ７１１１ヲ０　．０．０５　にＪ：Ｕ４０．０ｍｍ
部と変更し、実施例１と同様に紡糸し、原糸物性を評価
した。Raw yarn Fuji twist occurrence rate Composite yarn of Example 1 0.4% C yarn 10. O% D Yarn 0. 1% Comparative Example 1 In Example 1, the dimethylpolysiloxane in the polymer of the sheath component of the composite yarn had a silicon atom equivalent of 14 mm7111 0. 0.05 to J:U40.0mm
The yarn was spun in the same manner as in Example 1, and the physical properties of the yarn were evaluated.

添加量０重量部の強度は５．３（ｇ／ｄ）、伸度は３５
〈％）、摩擦係数は０．３２、添加量０．０５重量部の
強度は５．２　（（］／ｄ　）　。At 0 parts by weight, the strength is 5.3 (g/d) and the elongation is 35.
(%), the friction coefficient is 0.32, and the strength at an addition amount of 0.05 parts by weight is 5.2 ((]/d).

伸度は３４（％）、摩擦係数【５未０．３０、添加量４
０．０重量部の強度は３．５　（ｏ／ｄ　）　。Elongation is 34 (%), friction coefficient [5 less 0.30, addition amount 4
The strength of 0.0 part by weight is 3.5 (o/d).

伸度は２６（％）　、Ｉｌ！擦係数は０．１６であった
。鞘成分のシリコーン添加量（ケイ素原子換障）が０．
１重量％未満では十分な摩擦係数の低下が計れず、また
３０重量％を越えると強度および伸度の低下が大きい。The elongation is 26 (%), Il! The friction coefficient was 0.16. The amount of silicone added to the sheath component (silicon atom exchange) is 0.
If it is less than 1% by weight, the coefficient of friction will not be reduced sufficiently, and if it exceeds 30% by weight, the strength and elongation will be significantly reduced.

【図面の簡単な説明】[Brief explanation of the drawing]

図１〜図４は本発明の複合ポリエステル繊維の断面図で
あり、斜線（Ａ）で示した部分は有機シリコーン化合物
を含むポリエステル成分を示す。 特許出願人　東し株式会社 １５− 図１　図２ 図３　図４1 to 4 are cross-sectional views of the composite polyester fiber of the present invention, and the shaded area (A) indicates the polyester component containing an organic silicone compound. Patent applicant Toshi Co., Ltd. 15- Figure 1 Figure 2 Figure 3 Figure 4

Claims (3)

【特許請求の範囲】[Claims] （１）ケイ素として０．１重量％以上３０重量％以下と
なるように有機シリコーン化合物を含有したポリエステ
ルが糸表面の少なくとも一部を占めることを特徴とする
複合ポリエステル繊維。(1) A composite polyester fiber characterized in that polyester containing an organic silicone compound in an amount of 0.1% by weight or more and 30% by weight or less as silicon occupies at least a portion of the yarn surface. （２）芯鞘型複合１ＩｉＩＩＦであって有機シリコーン
化合物を含有したポリエステルからなる鞘成分の断面積
が繊維全断面積の５％以上３０％以下であることを特徴
とする特許請求の範囲第（１）項記載の複合ポリエステ
ル［ｔ。(2) The core-sheath type composite 1IiIIF is characterized in that the cross-sectional area of the sheath component made of polyester containing an organic silicone compound is 5% or more and 30% or less of the total cross-sectional area of the fiber ( Composite polyester described in section 1) [t. （３）有機シリコーン化合物を含有したポリエステルが
糸の全表面を覆ったことを特徴とする特許請求の範囲第
（１）項または第（２）項記載の複合ポリエステルｍｍ
。(3) The composite polyester mm according to claim 1 or 2, characterized in that the polyester containing an organic silicone compound covers the entire surface of the thread.
.