JPS621016B2

JPS621016B2 -

Info

Publication number: JPS621016B2
Application number: JP7548079A
Authority: JP
Inventors: Kaoru Adachi; Akira Takasu; Hiroshi Nakamura; Kyoshi Iwabuchi; Takehiko Yasui
Original assignee: Unitika Ltd
Current assignee: Unitika Ltd
Priority date: 1979-06-14
Filing date: 1979-06-14
Publication date: 1987-01-10
Also published as: JPS56328A

Description

【発明の詳細な説明】[Detailed description of the invention]

本発明は紡績糸風の外観と風合を持ち、さらに
は織編物にした場合、保温性にすぐれ、通気度が
少ない特徴を持つ単糸繊度が1.0den以下の極細単
糸からなり、毛羽を有する仮撚加工糸とその製造
方法に関するものである。近年、織物にした時にソフトな風合にするため
とか、単糸繊度が２〜6den位の、従来の一般糸
にない特徴を求めて単糸繊度が1den以下の極細
糸が開発されており、本発明はこの極細糸を使用
して製造されたきわめて付加価値の高い毛羽を有
する仮撚加工糸およびその製造方法を提供するも
のである。従来、合成繊維のマルチフイラメント糸から紡
績糸風の外観、風合を有する糸条を製造する方法
は数多く発明されている。たとえば走行マルチフ
イラメント糸に鋭利なエツジを有する刃物や粗面
体を接触させて毛羽を起生させる方法、あるいは
強度の異なる２種以上の糸条を用いて一方を牽伸
切断する方法などがある。しかし刃物や粗面体を
用いて糸条に毛羽を起生させる擦過法は、刃物の
寿命からくる品質の不安定、刃物交換によるコス
トアツプ、煩雑さなどの欠点があり製造上きわめ
て不利である。また牽伸による切断を用いる方法
は破断伸度の著しく低い糸条を準備し混合する必
要があり、複雑な工程を要し、また加工中での糸
切れが発生し稼動率の低下を招くという欠点があ
る。さらには不均一熱延伸−緊張熱延伸−流体圧
による単糸切断によつて毛羽を起生させる方法
（特公昭54−1826号）なども提案されているが工
程の複雑化という欠点がある。その他に有力な方法として特開昭49−133645
号、特開昭53−2624号がありこれらは単糸繊度が
1.5den以上の場合に効果的な方法であるが単糸繊
度が1.0den以下の極細糸の場合はその方法をその
まま使用することができない。また、従来の通常
のマルチフイラメントまたは仮撚糸を用いた織編
物は風合が平板で単調な感触の織編物しか得られ
ず、また嵩高捲縮加工を施したものでも外観が冷
たく、かつ合成繊維特有の光沢のある織編物しか
得られず、従来の紡績糸のもつやわらかい感触や
外観とは異なるものであつた。また、最近合成繊
維を用いて保湿性の高い織編物の要求が生じてき
た。本発明者らはこれらの点に鑑み研究の結果、単
糸繊度が1.0den以下の極細毛羽糸およびその効果
的な製造方法を見い出した。すなわち、本発明は単糸デニールが1.0den以下
のナイロン６マルチフイラメントからなり、毛羽
を有しかつ本文で定義する通気度および保温率が
25ml／cm²／sec以下および15％以上であることを
特徴とする毛羽を有する多数の極細単糸からなる
仮撚加工糸および延伸後の単糸繊度が1.0den以
下、総繊度300den以下であるナイロン６マルチ
フイラメント末延伸糸を延伸仮撚同時加工するに
際し、該未延伸糸の切断延伸倍率の0.68倍以上
0.85倍以下の延伸倍率でかつ90℃〜130℃の熱ピ
ンによる熱延伸を行うと同時に31000／√
（Ｔ／Ｍ）以下の仮撚数、130℃〜160℃の範囲の
熱セツト温度で仮撚加工することを特徴とする毛
羽を有する多数の極細単糸からなる仮撚加工糸の
製造方法である。ただし、Ｄは加工糸のデニー
ル。本発明の毛羽を有する極細仮撚加工糸は紡績糸
風の風合を持ち、嵩高性に富んだすぐれた糸条で
あり、この糸条を織物の緯糸として打込むと毛羽
を有する極細糸であるため通気度が25ml／cm²／
sec以下、保温率が15.0％以上のすぐれた織物特
性を有し、きわめて付加価値の高い加工糸であ
る。本発明で言う通気度、不温率はタペツト織機
（回転数168rpm）を用いて経糸70d／16fマルチフ
イラメント糸、緯糸に該仮撚加工糸を打込み仕上
密度経103本／インチ、緯６５２／〓Ｄ本／インチ（小
数点以下四捨五入）の平織物を化学繊維織物試験
JISL−1079（1966年）に示されている方法によ
り測定した数値である。通気性はフラジール型試
験機（東洋精機製作所製）を用いて、指定された
測定条件により試験片を通過する空気量（ml／
cm²／sec）を求めた。保温率は冷却法の時間によ
る場合の測定法で富士冷機工業(株)工業技術院繊維
高分子材料研究所型織布保温性試験器を用いて保温率（％）＝（１−ａ／ｂ）×100 の式より求めた。ａ：裸状の熱源体（温水を入れたステンレス溶
器）が一定温度（37℃）から所定温度（36℃）
まで冷却するのに要する時間（min）ｂ：熱源体に試料をとりつけた時の冷却に要する
時間（min）本発明の仮撚加工糸は上記の測定方法によつて
求めた通気度および保温率が25ml／cm²／sec以
下、および15％以上となるものであるので、後で
詳述するように本発明の仮撚加工糸を使用して織
編成した織編物は保温性、通気性に富み、さらに
含水性が高く、触感のやわらかいものが得られ
る。また本発明の仮撚加工糸を構成する単糸の繊度
は1.0den以下であることが必要であり、構成単糸
繊度が1.0denを越えると、紡績糸風の外観と風合
を有する糸条が得られず、織編物にしたとき保温
性にすぐれ、通気度が少ないものが得られない。さらに仮撚加工糸の毛羽数は100〜230個／ｍの
範囲内であることが望ましく好ましくは130〜230
個／ｍの範囲である。毛羽数が100個／ｍ未満の場合には紡績糸風の
外観と風合が得られず、230個／ｍを越えると織
編物にしたとき、毛羽立ちが発生して品位を低下
させる。以下、図面にしたがつて、本発明の仮撚加工糸
の製造方法について詳細に説明する。第１図は本発明を実施するための延伸仮撚同時
加工装置の具体例を示した概略図である。１はナ
イロン６マルチフイラメント未延伸糸パツケージ
であり、ここでの未延伸糸とは分子配向、結晶化
度が低いため、実用的用途に供するには延伸処理
を必要とする糸条をいう。Ｙは糸条であり２，
３，６は糸道ガイドである。糸条Ｙは供給ローラ４とデリベリローラ９の間
で該未延伸糸の切断延伸倍率の0.85倍以下の延伸
倍率で延伸されると同時にスピンドル８により仮
撚加工される。このとき延伸倍率が0.68倍未満の
ときは得られる加工糸の強度が低く、かつ残留伸
度が高く、毛羽の発生量も著しく少なく実用に供
しえず、0.85倍を越えるときは糸切れが多発し延
伸操業性が低下する。そしてこのときの熱セツト
は熱固定用ヒーター７上で行われ、熱セツト温度
は該糸条Ｙの単糸繊度が1.0den以下の極細糸であ
るため、130℃〜160℃の範囲内にすることが必須
条件となり、160℃を越える仮撚時の熱セツト温
度になると融着、未解撚が発生し、加工糸の風合
が劣り、130℃以下のときは捲縮斑が発生し不適
当である。また、このとき仮撚数はＴ＝Ｋ／√（Ｔ：仮
撚数Ｔ／Ｍ、Ｄ：延伸糸デニール、Ｋ：撚係数）
の一般式において、種々検討の結果、本発明にお
いては31000／√以下にすることが必要であ
り、好ましくは31000／√〜16000／√の範囲
である。また更に重要なことは供給ローラ４と熱固定用
ヒーター７の間に90℃〜130℃に加熱された熱ピ
ン５を設けて延伸することによりフイラメントの
一部を切断し、安定して毛羽を有する加工糸を得
ることができる。このとき熱ピン５の温度が90℃未満のときは毛
羽発生量が少なく、紡績糸風の風合が得られず、
130℃を越えたときは糸切れが多発し延伸操業性
が低下する。本発明における切断延伸倍率とは糸条を供給ロ
ーラと延伸ローラの間で単糸捲、切断の発生しな
い延伸倍率で冷延伸を開始させて無段変速機を使
用して、供給ローラの回転数を徐々に小さくする
ことにより延伸倍率を少しずつ大きくしていつた
とき該糸条が切断する瞬間の延伸倍率をいう。デ
リベリローラ９を出た糸条は引き取りローラ１１
との間でオーバーフイードされた状態でオーブン
ヒーター１０中で熱セツトされた後ガイド１２，
１３を経てオイリングローラ１４上でコーニング
油剤を付与された後フリクシヨンローラ１６上で
パツケージ１５に巻き取られる。また、本発明に使用される未延伸糸条は単糸が
極細糸であるため、紡糸の油剤付与工程におい
て、糸条の表面積が大きくなり、油水分付着量
が、単糸繊度の大きい糸条に比べて大きくなりが
ちであるが、油水分付着量が大きくなりすぎると
染色異常、風合異常が発生しやすく油分付着量は
0.5〜1.0％、水分付着量は２〜８％にすることが
好ましい。これらの範囲を越えると上記の欠点が
現われ好ましくない。本発明のマルチフイラメン
トは上記延伸仮撚同時加工を施した後の総デニー
ルが300den以下であり、かつその構成単糸フイ
ラメントのデニールが1.0den以下であり、好まし
くは総デニールが200den以下のものがよい。以上のごとく、本発明の仮撚加工糸の製造方法
は未延伸糸を延伸仮撚同時加工することによつて
毛羽を有する極細仮撚加工糸を製造するので紡績
糸の製造のように複雑な工程が不要で、コスト的
に非常に安価で容易に安定した品質の極細毛羽糸
を製造することができる。実施例１ノズル孔径0.10mmφのノズル孔68個を有する紡
糸口金を使用し、相対粘度2.6（96％H₂SO₄100
c.c.、試料１ｇ、25℃測定）のナイロン６チツプを
紡糸温度280℃、吐出量8.0ｇ／min、巻取速度
750ｍ／minで紡糸して得られた繊度105den、フ
イラメント数68本、切断延伸倍率3.5の未延伸糸
を下記の条件で２本を延伸仮撚同時加工し合糸し
た。未延伸糸の油分付着量は0.80％、水分付着量
は5.0％であつた。使用した延伸仮撚同時加工装
置は第１図に示した装置（バーマーグFK−5S型
延伸仮撚機に熱ピン５を設けたもの）である。延伸仮撚同時加工条件延伸速度 225ｍ／min 延伸倍率 2.78 スピンドル回転数 60万r.p.m 仮撚数 2660Z撚（Ｔ／Ｍ）熱ピン温度 110℃ 第１ヒーター長 110cm 第１ヒーター温度 150℃ 第２ヒーター長 90cm 第２ヒーター温度 180℃ 第１オーバーフイード率 14.8％（デリベリーロ
ーラ９と引き取りローラ１１間）第２オーバーフイード率 14.01％（デリベリー
ローラ９とフリクシヨンローラ１６間）巻取速度 190ｍ／min 得られた毛羽を有する84den／136fil仮撚加工
糸は約160個／ｍの毛羽を有し、染色性の安定し
た紡績糸風の風合を有し嵩高性のある付加価値の
高いものであつた。実施例２実施例１の未延伸糸を同様の条件で延伸仮撚同
時加工し、第１ヒーター温度を種々変更したとこ
ろ第１表のような結果が得られた。 The present invention has a spun yarn-like appearance and texture, and when made into a woven or knitted fabric, it is made of ultra-fine single yarn with a single yarn fineness of 1.0 den or less, which has excellent heat retention and low air permeability. The present invention relates to a false twisted yarn and a method for manufacturing the same. In recent years, ultra-fine yarns with a single yarn fineness of 1 den or less have been developed in order to have a soft texture when woven into fabrics, or to have characteristics that conventional general yarns with a single yarn fineness of 2 to 6 den do not have. The present invention provides a false-twisted yarn having extremely high added value and fluff, which is manufactured using this ultrafine yarn, and a method for manufacturing the same. Conventionally, many methods have been invented for producing yarn having a spun yarn-like appearance and feel from multifilament yarns of synthetic fibers. For example, there is a method in which a running multifilament yarn is brought into contact with a blade or a rough surface having sharp edges to generate fluff, or a method in which two or more yarns with different strengths are used and one is draft cut. However, the abrasion method in which fuzz is generated on the yarn using a blade or a rough surface body has drawbacks such as unstable quality due to the life of the blade, increased costs due to blade replacement, and complexity, and is extremely disadvantageous in terms of production. In addition, the method of cutting by drafting requires the preparation and mixing of yarn with extremely low elongation at break, which requires a complicated process, and also causes yarn breakage during processing, resulting in a decrease in operation rate. There are drawbacks. Furthermore, a method has been proposed in which fuzz is generated by nonuniform hot stretching, tension hot stretching, and single filament cutting using fluid pressure (Japanese Patent Publication No. 1826/1983), but this method has the disadvantage of complicating the process. Another promising method is JP-A No. 49-133645.
No., JP-A No. 53-2624, and these have single yarn fineness.
This method is effective when the fineness of the single yarn is 1.5 den or more, but it cannot be used as is for ultrafine yarns with a single yarn fineness of 1.0 den or less. In addition, conventional woven or knitted fabrics using ordinary multifilament or false twisted yarns have a flat and monotonous feel, and even those that have been subjected to bulky crimping have a cold appearance and synthetic fibers. Only a woven or knitted fabric with a unique luster could be obtained, which was different from the soft feel and appearance of conventional spun yarn. In addition, recently there has been a demand for woven or knitted fabrics using synthetic fibers that have high moisture retention properties. In view of these points, the present inventors conducted research and discovered an ultrafine fluffy yarn with a single yarn fineness of 1.0 den or less and an effective method for producing the same. That is, the present invention is made of nylon 6 multifilament with a single yarn denier of 1.0 den or less, has fluff, and has air permeability and heat retention rate as defined in the text.
False-twisted yarn consisting of a large number of ultra-fine single yarns having fluff of 25 ml/cm ² /sec or less and 15% or more, and a single yarn fineness after drawing of 1.0 den or less and a total fineness of 300 den or less When simultaneously stretching and false twisting nylon 6 multifilament end-drawn yarn, the cutting draw ratio of the undrawn yarn should be 0.68 times or more.
31000/√ at the same time as hot stretching with a hot pin at 90℃~130℃ with a stretching ratio of 0.85 times or less
(T/M) or less and a heat setting temperature in the range of 130°C to 160°C. be. However, D is the denier of processed yarn. The ultra-fine false-twisted yarn with fluff of the present invention has a texture similar to that of spun yarn and has excellent bulkiness.When this yarn is inserted as the weft of a fabric, it becomes an ultra-fine yarn with fluff. Because of this, the air permeability is 25ml/ ^cm2 /
sec or less, it has excellent textile properties with a heat retention rate of 15.0% or more, and is a processed yarn with extremely high added value. The air permeability and non-temperature rate referred to in the present invention are determined by using a tapepet loom (rotation speed: 168 rpm) with warp yarns of 70d/16f multifilament yarn and weft yarns of the false twisted yarn, resulting in a finished density of warp 103/inch and weft 652/〓 Chemical fiber fabric test on D strands/inch (rounded to the nearest whole number) of plain fabrics
This value was measured using the method specified in JISL-1079 (1966). Air permeability was measured using a Frazier type tester (manufactured by Toyo Seiki Seisakusho) and the amount of air passing through the test piece (ml/
cm ² /sec). The heat retention rate is measured by the cooling method using a woven fabric heat retention tester manufactured by the Institute of Textile and Polymer Materials, Institute of Industrial Science and Technology, Fuji Reiki Kogyo Co., Ltd. Heat retention rate (%) = (1-a/b) ) × 100. a: The bare heat source (stainless steel vessel filled with hot water) changes from a constant temperature (37℃) to a specified temperature (36℃)
b: Time required for cooling the sample when attached to the heat source (min) The false twisted yarn of the present invention has an air permeability and a heat retention rate determined by the above measurement method. is less than 25ml/cm ² /sec and more than 15%, so as will be detailed later, woven and knitted fabrics using the false twisted yarn of the present invention have excellent heat retention and breathability. It has a high water content and is soft to the touch. Furthermore, the fineness of the single yarns constituting the false twisted yarn of the present invention must be 1.0 den or less, and if the fineness of the single yarns exceeds 1.0 den, the yarn will have the appearance and texture of spun yarn. Therefore, when made into a woven or knitted fabric, a fabric with excellent heat retention and low air permeability cannot be obtained. Furthermore, it is desirable that the number of fluffs in the false twisted yarn is within the range of 100 to 230 pieces/m, preferably 130 to 230 pieces/m.
The range is 1/m. If the number of fuzz is less than 100 fuzz/m, the appearance and feel of a spun yarn cannot be obtained, and if it exceeds 230 fuzz/m, fuzz will occur when it is made into a woven or knitted fabric, reducing the quality. EMBODIMENT OF THE INVENTION Hereinafter, the manufacturing method of the false twist textured yarn of this invention is demonstrated in detail according to drawing. FIG. 1 is a schematic diagram showing a specific example of a simultaneous stretching and false twisting processing apparatus for carrying out the present invention. Reference numeral 1 is a nylon 6 multifilament undrawn yarn package, and the undrawn yarn here refers to a yarn that requires stretching treatment for practical use due to its low molecular orientation and low crystallinity. Y is thread2,
3 and 6 are thread guides. The yarn Y is drawn between the supply roller 4 and the delivery roller 9 at a draw ratio of 0.85 times or less than the cutting draw ratio of the undrawn yarn, and at the same time is subjected to a false twisting process by the spindle 8. At this time, when the draw ratio is less than 0.68 times, the strength of the processed yarn obtained is low, the residual elongation is high, and the amount of fluff generated is extremely low, making it unusable for practical use, and when it exceeds 0.85 times, yarn breakage occurs frequently. As a result, drawing operability deteriorates. The heat setting at this time is performed on the heat fixing heater 7, and the heat setting temperature is set within the range of 130°C to 160°C since the yarn Y is an ultra-fine yarn with a single yarn fineness of 1.0 den or less. This is an essential condition, and if the heat set temperature during false twisting exceeds 160℃, fusion and untwisting will occur, resulting in poor texture of the processed yarn, and if the temperature is below 130℃, crimp spots will occur and the yarn will fail. Appropriate. In addition, at this time, the number of false twists is T = K/√ (T: number of false twists T/M, D: drawn yarn denier, K: twist coefficient)
In the general formula, as a result of various studies, in the present invention, it is necessary to set it to 31000/√ or less, preferably in the range of 31000/√ to 16000/√. What is even more important is that a heating pin 5 heated to 90°C to 130°C is provided between the supply roller 4 and the heat fixing heater 7 to cut a part of the filament and stably remove fluff by stretching. It is possible to obtain a processed yarn having the following properties. At this time, when the temperature of the heating pin 5 is less than 90°C, the amount of fluff generated is small, and the texture of spun yarn cannot be obtained.
When the temperature exceeds 130°C, thread breakage occurs frequently and drawing operability decreases. In the present invention, the cutting/drawing ratio refers to the yarn being wound between a supply roller and a drawing roller, and cold drawing is started at a drawing ratio at which no cutting occurs. This refers to the stretching ratio at the moment when the yarn breaks when the stretching ratio is increased little by little by gradually decreasing . The yarn that has left the delivery roller 9 is transferred to the take-up roller 11
After being heat set in the oven heater 10 in an over-fed state between the guide 12,
13, and is coated with Corning oil on an oiling roller 14, and then wound onto a friction roller 16 into a package 15. In addition, since the undrawn yarn used in the present invention is a single filament that is extremely fine, the surface area of the yarn becomes large in the oiling process during spinning, and the amount of oil and moisture attached to the yarn is reduced by the yarn with a large single filament fineness. However, if the amount of oil/water adhesion becomes too large, dyeing abnormalities and texture abnormalities tend to occur.
It is preferable to set the amount of water adhesion to 0.5 to 1.0% and 2 to 8%. Exceeding these ranges is undesirable because the above-mentioned drawbacks occur. The multifilament of the present invention has a total denier of 300 den or less after the simultaneous drawing and false twisting process, and the denier of the constituent single filaments is 1.0 den or less, preferably a total denier of 200 den or less. good. As described above, the method for producing false twisted yarn of the present invention produces ultra-fine false twisted yarn with fuzz by simultaneous stretching and false twisting of undrawn yarn, so it is not as complex as the production of spun yarn. No process is required, and ultra-fine fluffy yarn with stable quality can be easily produced at very low cost. Example 1 A spinneret having 68 nozzle holes with a nozzle diameter of 0.10 mmφ was used, and a relative viscosity of 2.6 (96% H ₂ SO ₄ 100
cc, sample 1g, measured at 25℃) of nylon 6 chips were spun at a temperature of 280℃, a discharge rate of 8.0g/min, and a winding speed.
Two undrawn yarns obtained by spinning at 750 m/min, having a fineness of 105 den, a number of filaments of 68, and a cutting draw ratio of 3.5 were subjected to simultaneous stretching, false twisting, and splicing under the following conditions. The amount of oil attached to the undrawn yarn was 0.80% and the amount of water attached was 5.0%. The simultaneous stretching and false twisting processing device used was the device shown in FIG. 1 (a Barmarg FK-5S type stretching and false twisting machine equipped with a heating pin 5). Simultaneous stretching and false twisting processing conditions Stretching speed 225m/min Stretching ratio 2.78 Spindle rotation speed 600,000 rpm Number of false twists 2660Z twist (T/M) Heat pin temperature 110℃ 1st heater length 110cm 1st heater temperature 150℃ 2nd heater length 90cm 2nd heater temperature 180℃ 1st overfeed rate 14.8% (between delivery roller 9 and take-up roller 11) 2nd overfeed rate 14.01% (between delivery roller 9 and friction roller 16) Winding speed 190m/min The obtained 84den/136fil false twisted yarn has about 160 pieces/m of fluff, has a texture similar to a spun yarn with stable dyeability, is bulky, and has high added value. Ta. Example 2 The undrawn yarn of Example 1 was simultaneously stretched and false-twisted under the same conditions, and the first heater temperature was variously changed, and the results shown in Table 1 were obtained.

【表】実施例３実施例１で得られた糸条（84den／136fil）（No.
１）、同様の条件で得た82den／96filのナイロン
６糸条（No.２）、比較として一般織物緯糸用ナイ
ロン６フイラメント70d／24f（熱セツト温度170
℃で熱処理）（No.３）、冷延伸された通常マルチフ
イラメント糸をスピンドルタイプの仮撚機を用い
仮撚数3390T／Ｍ、ヒータープレート185℃で仮
撚加工したナイロン６仮撚糸72d／24f（No.４）お
よび特開昭53−2624号に示された方法で得た毛羽
を有するナイロン６仮撚加工糸82d／34f（熱ピン
温度170℃、第１ヒーター温度175℃、毛羽数160
個／ｍ）（No.５）を用い、通気性および保温率の
測定をした結果およびそれらの糸条の代表物性値
を第２表に示す。[Table] Example 3 Yarn (84den/136fil) obtained in Example 1 (No.
1), 82den/96fil nylon 6 filament (No. 2) obtained under similar conditions, and for comparison, nylon 6 filament 70d/24f for general textile weft (heat set temperature 170
(No. 3) Nylon 6 false-twisted yarn 72d/24f made by cold-drawn normal multifilament yarn and false-twisted it using a spindle-type false-twisting machine with a number of false twists of 3390T/M and a heater plate of 185℃. (No. 4) and nylon 6 false twisted textured yarn 82d/34f with fluff obtained by the method shown in JP-A No. 53-2624 (thermal pin temperature 170℃, first heater temperature 175℃, number of fluffs 160
Table 2 shows the results of measuring the air permeability and heat retention rate using the fiberglass yarns/m) (No. 5) and the representative physical property values of the yarns.

【表】捲縮糸の繊度、伸度、熱水収縮率は総den×１／３０（ｇ）の初荷重をかけて測定した。この結果から、本発明の単糸デニールが小さく
毛羽を有する仮撚加工糸は通気度が少なく、保温
性にすぐれる特徴があることがわかる。更にNo.１、No.３、No.４、No.５の糸条を使用し
て、通気度、保温率の測定のときと同様に織成し
た織物小片をそれぞれ水中に投入した後脱水機
（日立PS−350洗濯機）で30秒間脱水したものの
含水率と乾燥曲線を第２図に示した。タテ軸が含
水率、ヨコ軸が風乾経過時間であり、風乾は温度
20℃、湿度65％RH、広さ36m²の室内の中央に、
織物小片を板片に木綿針で固定して行なつた。その結果、第２図に示したように本発明の糸条
から得られた織物は肌着用として要求される含水
性にもすぐれ、またその反面乾燥性にも遜色のな
いすぐれた織物であることがわかる。このように
本発明の糸条は保温性、通気性に富み得られた織
編物は従来のものと比較して軽くできる効果も有
し、従来の捲縮加工糸は外着向きであつたが、本
発明のものは含水性も高く触感がやわらかで肌着
としても用いることができ、巾広い用途を有する
ものである。[Table] The fineness, elongation, and hot water shrinkage rate of the crimped yarn were measured by applying an initial load of total den x 1/30 (g). From this result, it can be seen that the false twisted yarn of the present invention, which has a small single yarn denier and has fluff, has low air permeability and excellent heat retention properties. Furthermore, using threads No. 1, No. 3, No. 4, and No. 5, small pieces of fabric woven in the same manner as in the measurement of air permeability and heat retention rate were placed in water, and then placed in a dehydrator ( Figure 2 shows the moisture content and drying curve of the sample that was dehydrated for 30 seconds using a Hitachi PS-350 washing machine. The vertical axis is the moisture content, the horizontal axis is the elapsed air drying time, and air drying is the temperature.
20℃, humidity 65%RH, in the center of a ^36m2 room.
This was done by fixing a small piece of fabric to a piece of board with a cotton needle. As a result, as shown in Figure 2, the fabric obtained from the yarn of the present invention has excellent water absorption properties required for underwear, and on the other hand, it has excellent drying properties as well. I understand. As described above, the yarn of the present invention has excellent heat retention and breathability, and the resulting woven or knitted fabric has the effect of being lighter than conventional yarns, whereas conventional crimped yarns are suitable for outerwear. The material of the present invention has a high water content and is soft to the touch, so it can be used as underwear, and has a wide range of uses.

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

第１図は本発明を実施するための延伸仮撚同時
加工装置の概略図、第２図は織物の乾燥特性を示
したグラフである。１：ナイロン６マルチフイラメント未延伸糸パ
ツケージ、４：供給ローラ、５：熱ピン、７：熱
固定用ヒーター、８：スピンドル、９：デリベリ
ローラ、１０：オーブンヒーター、１１：引き取
りローラ、１６：フリクシヨンローラ、１５：加
工糸パツケージ、Ｙ：糸条。 FIG. 1 is a schematic diagram of a simultaneous stretching and false twisting processing apparatus for carrying out the present invention, and FIG. 2 is a graph showing the drying characteristics of the fabric. 1: Nylon 6 multifilament undrawn yarn package, 4: Supply roller, 5: Heat pin, 7: Heat fixing heater, 8: Spindle, 9: Delivery roller, 10: Oven heater, 11: Take-off roller, 16: Friction Roller, 15: Processed yarn package, Y: Yarn.

Claims

【特許請求の範囲】１単糸デニールが1.0de′n以下のナイロン６マ
ルチフイラメントからなり、毛羽を有しかつ本文
で定義する通気度および保温率が25ml／cm²／sec
以下および15％以上であることを特徴とする毛羽
を有する多数の極細単糸からなる仮撚加工糸。２ 130個／ｍ〜230個／ｍの毛羽を有する特許請
求の範囲第１項に記載の毛羽を有する多数の極細
単糸からなる仮撚加工糸。３延伸後の単糸繊度が1.0den以下、総繊度
300den以下であるナイロン６マルチフイラメン
ト未延伸糸を延伸仮撚同時加工するに際し、該未
延伸糸の切断延伸倍率の0.68倍以上0.85倍以下の
延伸倍率でかつ90℃〜130℃の熱ピンによる熱延
伸を行うと同時に31000／√（Ｔ／Ｍ）以下の
仮撚数、130℃〜160℃の範囲の熱セツト温度で仮
撚加工することを特徴とする毛羽を有する多数の
極細単糸からなる仮撚加工糸の製造方法。ただし、Ｄは加工糸のデニール。４ナイロン６マルチフイラメント未延伸糸の油
分付着量を0.5〜1.0％、水分付着量を２〜８％に
して延伸仮撚同時加工する特許請求の範囲第３項
に記載の毛羽を有する多数の極細単糸からなる仮
撚加工糸の製造方法。[Claims] 1. Made of nylon 6 multifilament with a single yarn denier of 1.0 de'n or less, has fluff, and has an air permeability and heat retention rate of 25 ml/cm ² /sec as defined in the text.
A false-twisted yarn consisting of a large number of ultra-fine single yarns having a fluff of not more than 15%. 2. A false twisted yarn comprising a large number of ultra-fine single yarns having fluff as claimed in claim 1, which has fluffs of 130 to 230 fluffs/m. 3 Single yarn fineness after drawing is 1.0den or less, total fineness
When simultaneously stretching and false-twisting an undrawn nylon 6 multifilament yarn of 300 den or less, heat with a hot pin at 90°C to 130°C at a draw ratio of 0.68 to 0.85 times the cutting draw ratio of the undrawn yarn. Consisting of a large number of ultra-fine single yarns with fluff, which are simultaneously stretched and false-twisted at a number of false twists of 31000/√(T/M) or less and a heat setting temperature in the range of 130°C to 160°C. A method for producing false twisted yarn. However, D is the denier of processed yarn. 4 A large number of ultra-fine fibers having fluff as described in claim 3, which are simultaneously stretched and false-twisted with an oil adhesion amount of 0.5 to 1.0% and a water adhesion amount of 2 to 8% of nylon 6 multifilament undrawn yarn. A method for producing a false twisted yarn consisting of a single yarn.