JP2001316941A - Polyester multifilament yarn and method for producing the same and woven or knitted fabric thereof - Google Patents
Polyester multifilament yarn and method for producing the same and woven or knitted fabric thereofInfo
- Publication number
- JP2001316941A JP2001316941A JP2001046340A JP2001046340A JP2001316941A JP 2001316941 A JP2001316941 A JP 2001316941A JP 2001046340 A JP2001046340 A JP 2001046340A JP 2001046340 A JP2001046340 A JP 2001046340A JP 2001316941 A JP2001316941 A JP 2001316941A
- Authority
- JP
- Japan
- Prior art keywords
- multifilament yarn
- yarn
- polyester multifilament
- heat treatment
- fiber
- 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.)
- Granted
Links
Landscapes
- Chemical Or Physical Treatment Of Fibers (AREA)
- Artificial Filaments (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Woven Fabrics (AREA)
- Knitting Of Fabric (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、自発伸長性および
深色性を有し、かつ染色後の最終製品がソフトでふくら
み感のある風合いを呈するポリエステルマルチフィラメ
ント糸及びその製造方法並びにその織編物に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polyester multifilament yarn having spontaneous elongation and deep coloration, and a dyed final product having a soft and swelling feel, a method for producing the same, and a woven / knitted fabric thereof. About.
【0002】[0002]
【従来の技術】ポリエステルは多くの優れた特性を有す
るが故に繊維として広く用いられているが、染色加工後
の色艶が悪いという欠点が有り、例えば綿、絹、羊毛の
ような天然繊維、あるいはレイヨン、アセテートのよう
な半合成繊維に比べ、色の鮮明性、深みに劣る点があげ
られる。染色特性に関するこれらの欠点は、繊維の屈折
率、繊維の表面形状、繊維の形態（繊維の太さ、断面形
状、中空部の有無、クリンプ形態）などに起因すること
が知られている。ポリエステル繊維の屈折率は１．６〜
１．７程度で有り、他の繊維素材の屈折率（１．４５〜
１．６程度）と比較するとかなり高く、またポリエステ
ル繊維は溶融紡糸法によって製造されるため、一般にそ
の表面がきわめてなめらかであり、繊維表面での白色光
の反射率を増大させ、深色性の低下を引き起こす。従来
より、ポリエステル繊維の深色性を改善するために、繊
維表面の改質による種々の方法が提案されている。2. Description of the Related Art Polyester is widely used as a fiber because it has many excellent properties. However, it has a drawback that the color and luster after dyeing are poor. For example, natural fibers such as cotton, silk and wool, Alternatively, it is inferior in color clarity and depth as compared with semi-synthetic fibers such as rayon and acetate. It is known that these drawbacks regarding the dyeing characteristics are caused by the refractive index of the fiber, the surface shape of the fiber, the form of the fiber (fiber thickness, cross-sectional shape, presence or absence of a hollow portion, crimp shape), and the like. The refractive index of polyester fiber is 1.6 ~
It is about 1.7, and the refractive index of other fiber materials (1.45-45)
1.6), and since polyester fibers are produced by a melt spinning method, their surfaces are generally very smooth, increasing the reflectance of white light on the fiber surfaces, and Causes decline. Hitherto, in order to improve the deep color of polyester fibers, various methods by modifying the fiber surface have been proposed.
【0003】例えば、特公昭５９−２４２３３号公報には、
粒子径が０．１μｍ以下の微粒子を０．５〜１０重量％
含有させたポリエステル繊維をアルカリ処理して、繊維
表面に微細な凹凸を形成させる方法が提案されている。
しかしながら、このような表面微多孔化ポリエステル繊
維は、表面が微多孔化されていないポリエステル繊維と
比較して深色性は改善されるものの、繊維内部は改質さ
れていないので、染料が繊維内部に入りにくく、染色性
が不十分となり、十分な深みのある色の最終製品は得ら
れない。[0003] For example, Japanese Patent Publication No. 59-24233 discloses that
0.5 to 10% by weight of fine particles having a particle diameter of 0.1 μm or less
A method of forming fine irregularities on the fiber surface by treating the contained polyester fiber with an alkali has been proposed.
However, although the surface microporous polyester fiber has improved deep-colored properties as compared with the polyester fiber whose surface is not microporous, the dye is not modified inside the fiber because the fiber interior is not modified. And the dyeing properties are insufficient, and a final product having a color with sufficient depth cannot be obtained.
【0004】一方、近年の消費者ニーズの多様化の中で、深
色性能の改善とともに、これまで以上にソフトで膨らみ
感のある風合いが求められてきている。そのために、２
本以上の糸条を流体処理或いは合糸することにより嵩高
糸や潜在捲縮を得るという方法が用いられ、その特徴を
より大きく発揮させるために収縮率の異なる糸条の組合
せが用いられ、高収縮繊維との収縮差を出すために自発
伸長繊維が提案されている。[0004] On the other hand, with the diversification of consumer needs in recent years, there has been a demand for a softer and more swelling texture as well as improved deep color performance. Therefore, 2
A method of obtaining a bulky yarn or a latent crimp by subjecting more than one yarn to fluid treatment or twining is used, and a combination of yarns having different shrinkage rates is used in order to exert its characteristics more greatly. Spontaneous elongation fibers have been proposed to produce a difference in shrinkage from shrinkage fibers.
【0005】例えば特開平６−２００４３９号公報では、複
屈折率△ｎが３０〜７０×１０ −３の範囲にあるポリエ
ステルの高配向未延伸フィラメント糸を、ガラス転移温
度以上で延伸し、引き続いて緩和熱処理することによ
り、自発伸張性ポリエステル太細フィラメント糸が提案
されている。しかしながら、このようなポリエステル自
発伸長性繊維も、繊維の屈折率は１．６〜１．７程度で
あり、他の繊維素材の屈折率（１．４５〜１．６程度）
と比較するとかなり高く、また、溶融紡糸法によって製
造されるため、その表面がきわめてなめらかであり、繊
維表面での反射光を増大させ、最終製品の深色性につい
て十分とは言えない。[0005] For example, in Japanese Patent Laid-Open No.
Refractive index Δn is 30 to 70 × 10 -3In the range
The highly oriented undrawn filament yarn of stell
Degree, and then relaxed heat treatment.
, Spontaneous extensible polyester thick filament yarn proposed
Have been. However, such polyesters
Extensible fibers also have a refractive index of about 1.6 to 1.7.
Yes, refractive index of other fiber materials (about 1.45 to 1.6)
Significantly higher than that of
The surface is extremely smooth and fine
Increasing the reflected light on the fiber surface,
Not enough.
【0006】[0006]
【発明が解決しようとする課題】本発明はこのような従
来技術における問題点を解決するものであり、自発伸張
性能、染色後の深色性が良好で、ソフトで膨らみ感のあ
る風合いを呈する最終製品が得られる、ポリエステルマ
ルチフィラメント糸及びその製造方法並びにその織編物
を提供することにある。SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems in the prior art, and exhibits a soft and swelling texture with good spontaneous stretching performance and good deep color after dyeing. An object of the present invention is to provide a polyester multifilament yarn, a method for producing the same, and a woven or knitted fabric thereof, from which a final product can be obtained.
【0007】[0007]
【課題を解決するための手段】本発明の第一の要旨は、
複屈折率△ｎが２０〜６５×１０−３の低配向部と△ｎ
が７０〜１５０×１０−３の高配向部からなるモノフィ
ラメントから構成されるポリエステルマルチフィラメン
ト糸であって、Ｕ％が＋１．０％以上のピークが５個／
ｍ以上あり、沸水処理時の伸長率が０％以上、沸水処理
に引き続き１３０℃以上で乾熱処理した時、さらに１％
以上の伸長率を示し、アルカリ減量後に繊維表面にａ＝
０．１〜２μｍ、１≦ｂ／ａ≦１０のボイド（但し、ａ
は繊維軸に垂直方向のボイドの長さ、ｂは繊維軸方向の
ボイドの長さ）が形成されることを特徴とするポリエス
テルマルチフィラメント糸にある。The first gist of the present invention is as follows.
A low orientation part having a birefringence Δn of 20 to 65 × 10 −3 and Δn
Is a polyester multifilament yarn composed of monofilaments composed of highly oriented portions of 70 to 150 × 10 −3 , wherein 5% of the peaks have a U% of + 1.0% or more.
m, the elongation at the time of boiling water treatment is 0% or more, and when the dry heat treatment is performed at 130 ° C. or more following the boiling water treatment, an additional 1%
It shows the above elongation rate, and a =
0.1 to 2 μm, 1 ≦ b / a ≦ 10 voids (however, a
Is the length of the void in the direction perpendicular to the fiber axis, and b is the length of the void in the direction of the fiber axis).
【0008】また本発明の第二の要旨は、一次粒子の平均粒
径が０．２μｍ以下である二酸化ケイ素を０．２〜２重
量％含有した、複屈折率△ｎが２０〜６５×１０−３の
未延伸ポリエステルマルチフィラメント糸を下記〜
式を同時に満たす条件で延伸し、引き続いて、式を
同時に満足する条件で緩和熱処理することを特徴とする
ポリエステルマルチフィラメント糸の製造方法にある。[0008] A second gist of the present invention is that the composition contains 0.2 to 2% by weight of silicon dioxide having an average primary particle size of 0.2 μm or less and has a birefringence Δn of 20 to 65 × 10 -3 unstretched polyester multifilament yarn:
The present invention provides a method for producing a polyester multifilament yarn, characterized by stretching under conditions that simultaneously satisfy the formula, and subsequently relaxing heat treatment under conditions that simultaneously satisfy the formula.
【0009】 ＤＲ１＝ＭＤＲ×（０．４〜０．５５）＞１．０ ＤＲ２＝１．０３〜１．４０ ＨＲ１＝Ｔｇ〜（Ｔｇ＋３０）℃ ＨＲ２＜ Ｔｃ＋ ＲＲ＞５.０ ＨＰ＞（ＨＲ２＋５０）℃ ここで、ＤＲ１は１段目延伸域の延伸倍率。ＤＲ２は２
段目延伸域の延伸倍率。ＭＤＲは予熱温度９０℃で測定
した最大延伸倍率。ＨＲ１は１段目延伸域の引取りロー
ラーの表面温度。ＨＲ２は２段目延伸域の引取りローラ
ーの表面温度。ＲＲは緩和熱処理域の緩和率。ＨＰは緩
和熱処理域の緩和温度。Ｔｃ＋は結晶化温度である。DR 1 = MDR × (0.4 to 0.55)> 1.0 DR 2 = 1.03 to 1.40 HR 1 = Tg to (Tg + 30) ° C. HR 2 <Tc + RR> 5.0 HP> (HR 2 +50) ° C. Here, DR 1 is a stretching ratio in the first-stage stretching region. DR 2 is 2
Stretching magnification of the stage stretching area. MDR is the maximum draw ratio measured at a preheating temperature of 90 ° C. HR 1 is the surface temperature of the take-up roller in the first-stage stretching area. HR 2 is the surface temperature of the take-up roller in the second stretching zone. RR is the relaxation rate in the relaxation heat treatment region. HP is the relaxation temperature of the relaxation heat treatment region. Tc + is the crystallization temperature.
【0010】さらに本発明の第三の要旨は、該ポリエステル
マルチフィラメント糸を少なくとも一部に用いた織編物
にある。[0010] A third aspect of the present invention is a woven or knitted fabric using the polyester multifilament yarn at least in part.
【0011】[0011]
【発明の実施の形態】本発明のポリエステルマルチフィ
ラメント糸は、複屈折率△ｎが２０〜６５×１０−３の
低配向部と△ｎが７０〜１５０×１０−３の高配向部か
らなるモノフィラメントから構成されていることが必要
である。△ｎが２０〜６５×１０−３の低配向部は分子
配向が抑制され、染料分子が繊維内部に拡散しやすい構
造になっていることから濃染性を示す。また、△ｎが７
０〜１５０×１０−３の高配向部が存在することで、低
配向部に比べ淡染性を示し、濃淡差による意匠性に優れ
たものとなると共に、アルカリ減量後も十分な繊維強度
を保つことが可能となる。Polyester multifilament yarns of the embodiment of the present invention, the low orientation portions and △ n of birefringence △ n is 20 to 65 × 10 -3 is made of a high orientation portions of 70 to 150 × 10 -3 It must be composed of monofilaments. The low orientation portion having Δn of 20 to 65 × 10 −3 exhibits a strong dyeing property because the molecular orientation is suppressed and the dye molecules are easily diffused into the fiber. Also, Δn is 7
The presence of the high-oriented portion of 0 to 150 × 10 −3 shows light-dyeing properties compared to the low-oriented portion, and the design becomes excellent due to the difference in shading. It is possible to keep.
【0012】△ｎが２０×１０−３未満の低配向部が存在す
ると、アルカリ減量後に十分な強度低を保つことが困難
となり、△ｎが７０〜１５０×１０−３の高配向部が存
在しないと、濃淡差による意匠効果がえられず、アルカ
リ減量後の強度も不十分となる。When a low-orientation portion having Δn of less than 20 × 10 −3 is present, it is difficult to maintain a sufficiently low strength after alkali reduction, and a high-orientation portion with Δn of 70 to 150 × 10 −3 is present. Otherwise, the design effect due to the difference in shading will not be obtained, and the strength after alkali weight loss will also be insufficient.
【0013】また本発明のポリエステルマルチフィラメント
糸は、Ｕ％が＋１．０％以上のピークが５個／ｍ以上あ
ることが必要である。[0013] The polyester multifilament yarn of the present invention is required to have 5% or more peaks with U% of + 1.0% or more.
【0014】Ｕ％が＋１．０％以上のピークは低配向部の存
在周期を示し、低配向部と高配向部が高度に分散してい
ないと、染色後の最終製品の外観上好ましくないだけで
なく、ソフトで膨らみ感のある風合いが得られない。Ｕ
％が＋１．０％以上のピークが５個／ｍ未満であること
は、低配向部と高配向部が高度に分散していないことを
意味する。[0014] The peak where U% is + 1.0% or more indicates the period of existence of the low-orientation part. If the low-orientation part and the high-orientation part are not highly dispersed, it is only unfavorable in appearance of the final product after dyeing. In addition, a soft and swelling texture cannot be obtained. U
A peak having a percentage of + 1.0% or more and less than 5 peaks / m means that the low-orientation part and the high-orientation part are not highly dispersed.
【0015】また、本発明のポリエステルマルチフィラメン
ト糸は、沸水処理時の伸長率が０％以上、好ましくは
０.５％以上であり、沸水処理したフィラメントを引き
続き１３０℃以上で乾熱処理した時、さらに１％以上伸
長する必要があり、好ましくは１.５％以上伸長するこ
とが望ましい。沸水処理時の伸長率が０％未満、または
沸水処理したフィラメントを引き続き１３０℃以上で乾
熱処理した時の伸長率が１％未満の場合には、収縮性の
フィラメント糸と混繊した後の、製織または製編後の精
練、染色仕上げ等の熱処理工程で自発伸長せず、ふくら
み間のあるソフトな風合いが得られない。[0015] The polyester multifilament yarn of the present invention has an elongation of at least 0%, preferably at least 0.5% at the time of boiling water treatment. Further, it is necessary to elongate by 1% or more, and it is desirable to elongate by 1.5% or more. If the elongation percentage during the boiling water treatment is less than 0% or the elongation percentage when the boiling water-treated filament is subsequently subjected to the dry heat treatment at 130 ° C. or more is less than 1%, after the filament is mixed with the shrinkable filament yarn, Does not spontaneously elongate in a heat treatment step such as scouring or dyeing finishing after weaving or knitting, and a soft texture with swelling cannot be obtained.
【0016】さらに本発明では、アルカリ減量後に、繊維表
面にａ＝０．１〜２μｍ、１≦ｂ/ａ≦１０のボイド
（但し、ａは繊維軸に垂直方向のボイドの長さ、ｂは繊
維軸方向のボイドの長さ）が存在していることが必要で
ある。繊維軸に対して縦長のボイドが存在することによ
って、繊維表面反射光が減少し、低配向部による濃染性
の効果との相乗効果によって最終製品の深色性を向上で
きる。Further, in the present invention, after alkali reduction, a = 0.1 to 2 μm and 1 ≦ b / a ≦ 10 voids on the fiber surface (where a is the length of the void in the direction perpendicular to the fiber axis, and b is (The length of the void in the fiber axis direction) needs to be present. The presence of voids that are elongated in relation to the fiber axis reduces the light reflected on the fiber surface, and improves the deep color of the final product due to a synergistic effect with the deep dyeing effect of the low orientation portion.
【0017】繊維軸に垂直方向のボイドの長さａが０．１μ
ｍ未満の場合、２μｍを超える場合は、可視光の乱反射
が起こりにくいため、繊維表面での正反射光（白色光）
が減少しにくく、最終製品の深色性が得られない。ま
た、ｂ／ａが１未満であると繊維の配向度が低く繊維強
度不足となり、１０を超えると、繊維の配向が高すぎ、
繊維内部に染料が浸透しにくくなるので、最終製品の深
色性が劣る。The length a of the void perpendicular to the fiber axis is 0.1 μm.
If it is less than m, and if it exceeds 2 μm, irregular reflection of visible light is unlikely to occur, so that specular reflection light (white light) on the fiber surface
Is hardly reduced, and the deep color of the final product cannot be obtained. Further, when b / a is less than 1, the degree of fiber orientation is low and fiber strength is insufficient, and when it exceeds 10, the fiber orientation is too high,
Since the dye hardly penetrates into the fiber, the deep color of the final product is inferior.
【0018】アルカリ減量は、アルカリ化合物の水溶液によ
り行うが、アルカリ処理に使用される化合物としては、
水酸化ナトリウム、水酸化カリウム、テトラメチルアン
モニウムハイドロオキサイド、炭酸ナトリウム、炭酸カ
リウム等を挙げることができる。なかでも、水酸化ナト
リウム、水酸化カリウムが特に好ましく用いられる。The alkali reduction is carried out with an aqueous solution of an alkali compound.
Examples thereof include sodium hydroxide, potassium hydroxide, tetramethylammonium hydroxide, sodium carbonate, and potassium carbonate. Among them, sodium hydroxide and potassium hydroxide are particularly preferably used.
【0019】また、このアルカリ処理による減量率は、もと
の繊維重量に対して５重量％以上、好ましくは１０重量
％以上が好ましい。アルカリ減量の条件は、アルカリ化
合物の種類等によって異なるが、濃度０．１〜３０重量
％、温度室温〜１００℃の範囲が好ましく、処理時間は
１分〜４時間の範囲が好ましい。The weight loss by the alkali treatment is preferably at least 5% by weight, more preferably at least 10% by weight, based on the weight of the original fiber. Conditions for the alkali weight reduction vary depending on the kind of the alkali compound and the like, but the concentration is preferably 0.1 to 30% by weight, the temperature is preferably in the range of room temperature to 100 ° C, and the treatment time is preferably in the range of 1 minute to 4 hours.
【0020】さらに本発明では、一次粒子の平均粒径が０．
２μｍ以下、好ましくは０.１μｍ以下である二酸化ケ
イ素が０．２〜２重量％含有されていることが好まし
く、より好ましくは０.４〜１.５重量％含有されている
ことが望ましい。また、粒子の分散性、および染色後の
フィラメントの深色性向上効果の面より、ＢＥＴ法によ
り測定した比表面積が１００ｍ２/g以下の乾式法シリカ
が特に好ましい。Further, in the present invention, the primary particles have an average particle size of 0.1.
It is preferable that silicon dioxide having a size of 2 μm or less, preferably 0.1 μm or less is contained in an amount of 0.2 to 2% by weight, more preferably 0.4 to 1.5% by weight. In addition, from the viewpoint of the dispersibility of the particles and the effect of improving the color deepness of the filament after dyeing, dry-process silica having a specific surface area of 100 m 2 / g or less as measured by the BET method is particularly preferable.
【0021】平均粒径が０．２μｍを超えると、本発明の目
的である最終的なポリエステルフィラメントの深色性が
低下しやすい。尚、ここでいう一次粒子の平均径とは、
該一次粒子と同一の容積を持つ仮想的な球の直径を意味
する。When the average particle size exceeds 0.2 μm, the deep color property of the final polyester filament, which is the object of the present invention, tends to decrease. Incidentally, the average diameter of the primary particles here is,
It means the diameter of a virtual sphere having the same volume as the primary particles.
【0022】更に、二酸化ケイ素の含有量が０．２重量％未
満の場合には、本発明の目的であるポリエステルマルチ
フィラメント糸の深色性が得られにくく、また２重量％
を超える場合には、製糸工程安定性が悪化しやすい。Further, when the content of silicon dioxide is less than 0.2% by weight, it is difficult to obtain the deep color of the polyester multifilament yarn, which is the object of the present invention, and 2% by weight.
If the ratio exceeds the above, the stability of the spinning process tends to deteriorate.
【0023】また、本発明のポリエステルフィラメントを得
るためのポリエステルポリマーは、公知の方法で合成し
たものでよい。例えばポリエチレンテレフタレートにつ
いて説明すれば、テレフタル酸とエチレングリコールを
直接エステル化反応させるか、テレフタル酸ジメチルの
如きテレフタル酸の低級アルキルエステルとエチレング
リコールとをエステル交換反応させるか、またはテレフ
タル酸にエチレンオキサイドを付加反応させるかして、
テレフタル酸のグリコールエステル及び／またはその低
重合体を合成し、次いで常法により重縮合させる方法が
一般的である。The polyester polymer for obtaining the polyester filament of the present invention may be synthesized by a known method. For example, when describing polyethylene terephthalate, terephthalic acid and ethylene glycol are directly esterified, a lower alkyl ester of terephthalic acid such as dimethyl terephthalate is transesterified with ethylene glycol, or ethylene oxide is added to terephthalic acid. Or let it react
A general method is to synthesize a glycol ester of terephthalic acid and / or a low polymer thereof, followed by polycondensation by a conventional method.
【0024】さらに、本発明のポリエステルフィラメントを
得るためのポリエステルポリマーには、適当な艶消し
剤、易滑剤、顔料等の添加剤が含有されていてもよい。Further, the polyester polymer for obtaining the polyester filament of the present invention may contain additives such as a suitable matting agent, lubricating agent and pigment.
【0025】本発明のポリエステルマルチフィラメント糸は
高配向部と低配向部がフィラメント間及び糸長方向に高
度に分散し、かつアルカリ減量後に繊維表面が微多孔化
され得るポリエステルフィラメントであり。該ポリエス
テルフィラメント糸の低配向部は分子配向が抑制されて
おり、染料分子が繊維内部に拡散しやすい構造になって
おり、高配向部が高度に分散していること、および繊維
表面微多孔化による表面反射光の減少との相乗効果によ
って最終製品の深色性を向上できる。[0025] The polyester multifilament yarn of the present invention is a polyester filament in which highly oriented portions and low oriented portions are highly dispersed between filaments and in the yarn length direction, and the fiber surface can be made microporous after alkali reduction. The molecular orientation is suppressed in the low-oriented portion of the polyester filament yarn, the dye molecules are easily diffused into the fiber, the highly-oriented portion is highly dispersed, and the fiber surface is made microporous. The deep color of the final product can be improved by a synergistic effect with the reduction of the surface reflected light.
【0026】次に本発明のポリエステルマルチフィラメント
糸の製造方法の一例を示す。本発明のポリエステルマル
チフィラメント糸を製造するにあたり使用する高配向未
延伸糸は、複屈折率△ｎが２０〜６５×１０-3の範囲内
にある必要があり、好ましくは４０〜６０×１０-3の範
囲内である。未延伸糸の△ｎが２０×１０-3より低い場
合は、得られるフィラメント糸の沸水処理時の伸長率は
小さく、目的とする自発伸張性は得られない。この理由
は、太細フィラメント化した時、太部である未延伸部の
配向が低すぎるため、沸水処理時の熱エネルギーによる
配向非晶部における分子構造の安定化は、結晶化ではな
く無定形への構造変化となり、結果的にはフィラメント
は収縮することになる。一方、△ｎが、６５×１０-3よ
り大きい場合には、最大延伸倍率が低く１段目延伸域の
延伸倍率（ＤＲ１）が１以下となり、太細フィラメント
化する延伸条件は得られず未延伸糸の緩和熱セット糸と
なる。その結果、沸水処理後の乾熱処理の伸長性は認め
られるが、沸水処理時の自発伸長性はない。また、分子
配向が高すぎることで、染色時に染料が繊維内部に拡散
しにくくなり、染色後のフィラメント糸の深色性も不十
分となる。Next, an example of the method for producing the polyester multifilament yarn of the present invention will be described. Highly oriented undrawn yarn used in producing the polyester multifilament yarn of the present invention, it is necessary to birefringence △ n is within the range of 20 to 65 × 10 -3, preferably 40 to 60 × 10 - It is within the range of 3 . When Δn of the undrawn yarn is lower than 20 × 10 −3 , the obtained filament yarn has a low elongation at the time of the boiling water treatment, and the intended spontaneous elongation cannot be obtained. The reason is that, when the filament is formed into a thin filament, the orientation of the unstretched portion which is a thick portion is too low, so that the stabilization of the molecular structure in the oriented amorphous portion due to heat energy during the boiling water treatment is not crystallization but amorphous. , Resulting in the filament shrinking. On the other hand, when Δn is larger than 65 × 10 −3 , the maximum draw ratio is low and the draw ratio (DR 1 ) in the first-stage drawing region is 1 or less, and the drawing conditions for forming a thick filament cannot be obtained. It becomes a relaxation heat set yarn of an undrawn yarn. As a result, the extensibility of the dry heat treatment after the boiling water treatment was observed, but there was no spontaneous elongation during the boiling water treatment. In addition, when the molecular orientation is too high, the dye does not easily diffuse into the fiber at the time of dyeing, and the deep color of the filament yarn after dyeing becomes insufficient.
【0027】△ｎが２０〜６５×１０-3の範囲にある高配向
未延伸糸を、室温の給糸ローラーとＴｇ〜（Ｔｇ＋３
０）℃に加熱された引取ローラーから構成される一対の
ローラー間で延伸倍率が１．０より大きく、かつ予熱温
度９０℃で測定した最大延伸倍率（ＭＤＲ）の４０〜５
５％に設定された延伸倍率で延伸する事により、延伸は
引取ローラー上で延伸が微小に変動する不均一延伸とな
る。この結果、太部と細部がフィラメント間そして糸長
方向に高度に分散した、太細フィラメントが得られる。The highly oriented undrawn yarn having Δn in the range of 20 to 65 × 10 -3 is supplied to a yarn feed roller at room temperature and Tg to (Tg + 3
0) The stretching ratio between a pair of rollers composed of a take-up roller heated to 0 ° C is greater than 1.0 and the maximum stretching ratio (MDR) measured at a preheating temperature of 90 ° C is 40 to 5;
By stretching at a stretching ratio set to 5%, stretching becomes uneven stretching in which stretching slightly fluctuates on a take-off roller. As a result, a thick and thin filament in which the thick part and the fine details are highly dispersed between the filaments and in the yarn length direction is obtained.
【0028】この太細フィラメントを引き続いて、結晶化温
度以下の温度で延伸倍率が１．０３〜１．４０であるよ
うな緊張熱処理を施すことにより、結晶化の進行を極力
抑えつつ、未延伸部である太部の配向を高め、精練、染
色工程等の熱処理工程において結晶化しやすい状態とす
ることができる。この段階で得られる太細フィラメント
は、延伸部である細部に延伸による構造歪みが残ってお
り、沸水処理時の伸長率は−７〜−５％と自発伸長性能
は有していない。この緊張熱処理を受けた太細フィラメ
ントを引き続いて、５.０％より高い緩和率と（緊張熱
処理時の処理温度＋５０）℃より高い温度条件下で緩和
熱処理することにより、細部の構造歪みは緩和され、沸
水時の伸長率が０％以上である自発伸長特性を有する太
細フィラメントとなる。ここで、延伸工程と緩和熱処理
工程は、連続した一工程で実施しても、独立した二工程
で実施してもよい。この自発伸長性太細フィラメント
は、１３０℃以上の乾熱処理を施すことによりさらに１
％以上の比可逆的な伸長が認められる。Subsequently, the thin filament is subjected to a tension heat treatment at a temperature not higher than the crystallization temperature so as to have a draw ratio of 1.03 to 1.40. The orientation of the thick part, which is a part, can be enhanced so that it can be easily crystallized in a heat treatment step such as a scouring or dyeing step. The thin filament obtained at this stage has structural distortion due to stretching in the details of the stretched portion, and has an elongation of -7 to -5% during boiling water treatment, and does not have spontaneous elongation performance. The fine filaments that have been subjected to the tension heat treatment are subsequently subjected to relaxation heat treatment at a relaxation rate higher than 5.0% and a temperature higher than (treatment temperature during tension heat treatment + 50) ° C., so that the structural distortion of the details is relaxed. As a result, a thick filament having spontaneous elongation characteristics having an elongation ratio of 0% or more when boiling water is obtained. Here, the stretching step and the relaxation heat treatment step may be performed in one continuous step or in two independent steps. This spontaneously extensible thin filament is further subjected to a dry heat treatment at 130 ° C. or more to further reduce
% Or more reversible elongation is observed.
【0029】上記延伸条件の範囲を外れた条件で延伸を行っ
た場合は、自発伸長性が発現しなかったり、自発伸長性
能が認められても、太部と細部の分散が悪く、染斑が発
生した染め品位に劣るものとなる。さらに自発伸長特性
についても、糸長方向に斑のある品質的に問題のある繊
維となる。[0029] When stretching is performed under conditions outside the range of the stretching conditions, spontaneous elongation is not exhibited, and even if spontaneous elongation performance is observed, dispersion of the thick part and details is poor, and spots are not observed. The resulting dye quality is inferior. In addition, spontaneous elongation characteristics also result in quality-related fibers having unevenness in the yarn length direction.
【0030】また本発明のポリエステルマルチフィラメント
糸を用いた織編物は、織編機、織編組織等については特
に制約することなく、少なくとも一部に用いることによ
って、本発明の目的とする深色性を有し、かつ染色後の
最終製品がソフトでふくらみ感のある風合いを呈する織
編物を得ることができる。The woven or knitted fabric using the polyester multifilament yarn of the present invention is not limited to a weaving machine, a woven or knitted structure, and is used for at least a part of the woven or knitted fabric. It is possible to obtain a woven or knitted fabric that has a property and that the final product after dyeing has a soft and swelling texture.
【0031】[0031]
【実施例】以下、本発明を実施例によりさらに詳細に説
明する。なお、実施例中、部、％とあるものは重量部、
重量％を意味し、実施例中の各特性値の評価は、下記の
方法で行った。The present invention will be described in more detail with reference to the following examples. In Examples, parts and% are parts by weight,
% Means weight%, and evaluation of each characteristic value in the examples was performed by the following method.
【0032】複屈折率△ｎ：カネボウエンジニアリング株式
会社製分子配向度測定装置ＤＥＬＴＡ−Ｎにて測定し
た。Birefringence Δn: Measured by a molecular orientation measuring device DELTA-N manufactured by Kanebo Engineering Co., Ltd.
【0033】Ｕ％（低配向部の存在周期）：計測器工業社製
イブネステスタＫＥＴ−８０Ｃにて糸速８ｍ／分で測定
した糸斑チャートを用いて、フィラメント３.２ｍ当た
りについて、ピークが＋１．０％以上の部分をカウント
し、１ｍ当たりに変換した。U% (period of existence of the low orientation portion): Using a yarn spot chart measured at a yarn speed of 8 m / min with an Evenester KET-80C manufactured by Keisoku Kogyo Co., Ltd., a peak of +1. The portion of 0% or more was counted and converted to 1 m.
【0034】沸水処理時の伸長率：１デシテックスあたり１
／３４ｃＮの張力下で試長１ｍの１０回巻カセを準備し
１デシテックスあたり２／３.４ｃＮの荷重を負荷して
初期カセ長（Ｌ０）を測定する。そのカセを無荷重状態
で沸騰水中に３０分間浸漬した後、再び荷重をかけて測
定カセ長（Ｌ１）を測定し、次式より算出する。 伸長率＝（Ｌ1−Ｌ0）／Ｌ０×１００％ 乾熱処理時の伸長率：沸水処理時の伸長率を測定した
後、測定後のカセサンプルを雰囲気温度１８０℃の中に
無荷重状態で１０分間放置し、測定カセ長（Ｌ２）を測
定し、次式により算出する。 伸長率＝（Ｌ2−Ｌ０）／Ｌ０×１００％ 未延伸糸のＴｇ、Ｔｃ＋：セイコー電子工業株式会社製
示差走査熱量測定機ＤＳＣ２２０にて、昇温速度１０℃
／分で測定した値である。Ｌ値：日本電色工業株式会社
製側色色差計Ｚ−１００１ ＤＰ型にて測定した値であ
る。Elongation rate during boiling water treatment: 1 per decitex
Under a tension of / 34 cN, prepare a 10-turn wrap with a test length of 1 m, apply a load of 2 / 3.4 cN per decitex, and measure the initial wrap length (L 0 ). After immersing the scab in boiling water for 30 minutes under no load, the scab is re-loaded and the measured scab length (L 1 ) is measured. Elongation rate = (L 1 −L 0 ) / L 0 × 100% Elongation rate during dry heat treatment: After measuring the elongation rate during boiling water treatment, the moss sample after measurement was loaded in an atmosphere temperature of 180 ° C. with no load. For 10 minutes, and measure the measured kerf length (L 2 ), and calculate by the following formula. Elongation rate = (L 2 −L 0 ) / L 0 × 100% Tg of undrawn yarn, Tc +: Temperature rise rate 10 ° C. by differential scanning calorimeter DSC220 manufactured by Seiko Instruments Inc.
/ Min. L value: A value measured with a side color difference meter Z-1001 DP manufactured by Nippon Denshoku Industries Co., Ltd.
【0035】（実施例１）テレフタル酸１００部、エチレン
グリコール５２部をエステル化槽に仕込み、４０ｋＰａ
の加圧下エステル化反応を行った。引き続き、得られた
反応生成物にトリメチルホスフェイト、三酸化アンチモ
ン、一次粒子の平均粒径が０．０４μｍで、ＢＥＴ法に
より測定した比表面積が４６ｍ２／ｇ乾式法微粒状二酸
化ケイ素を生成ポリエステルに対して実質上、０．０１
％、０.０４%、０．８％となるよう各々エチレングリコ
ール溶液または分散液として加え、重合槽に移した。槽
を減圧して真空度０．１３３ｋＰａ以下の高真空下２８
５℃にて重縮合反応を行い、ポリエステルポリマーを得
た。得られたポリマーを常法によりチップ化、乾燥し、
孔径０．２０ｍｍの円形孔を３６個有する紡糸口金より
紡糸温度２８３℃で溶融紡糸し、２７００ｍ／分で巻取
って、１００デシテックス／３６フィラメントの未延伸
糸を製造した。得られた未延伸糸のＭＤＲは２．６６、
△ｎ＝４７×１０-3、Ｔｇ＝７５℃、Ｔc＋＝１３８℃
であった。この未延伸繊維を下記の延伸条件で延伸、緩
和熱処理して９０デシテックス／３６フィラメントの太
細フィラメントを製造した。 一段目延伸倍率（ＤＲ1）＝ＭＤＲ×０．４６ 二段目延伸倍率（ＤＲ2）＝１．０８ 一段目引取りローラー温度（ＨＲ1）＝９５℃ 二段目引取りローラー温度（ＨＲ2）＝１００℃ 緩和率（ＲＲ）＝１５％、緩和温度（ＨＰ）＝１９５℃ 得られたマルチフィラメント糸を構成するモノフィラメ
ントの低配向部の△ｎは３０〜５０×１０-3、高配向部
の△ｎは９０〜１００×１０-3であった。また、該マル
チフィラメント糸の繊維軸方向の低配向部の存在周期は
１４．３個／ｍと高度に分散していた。(Example 1) 100 parts of terephthalic acid and 52 parts of ethylene glycol were charged into an esterification tank, and 40 kPa
Was subjected to an esterification reaction under pressure. Subsequently, trimethyl phosphate, antimony trioxide, an average particle diameter of primary particles of 0.04 μm, and a specific surface area of 46 m 2 / g measured by a BET method were obtained by dry-process fine-grained silicon dioxide in the obtained reaction product. Substantially 0.01
%, 0.04%, and 0.8%, respectively, as ethylene glycol solutions or dispersions, and transferred to a polymerization tank. The pressure in the tank is reduced to a high vacuum of 0.133 kPa or less.
A polycondensation reaction was performed at 5 ° C. to obtain a polyester polymer. The obtained polymer is formed into chips by a conventional method, dried,
It was melt-spun from a spinneret having 36 circular holes having a hole diameter of 0.20 mm at a spinning temperature of 283 ° C. and wound up at 2700 m / min to produce an undrawn yarn of 100 dtex / 36 filaments. The MDR of the obtained undrawn yarn is 2.66,
Δn = 47 × 10 −3 , Tg = 75 ° C., Tc + = 138 ° C.
Met. This undrawn fiber was drawn under the following drawing conditions and subjected to relaxation heat treatment to produce a thick filament of 90 dtex / 36 filaments. First-stage draw ratio (DR 1 ) = MDR × 0.46 Second-stage draw ratio (DR 2 ) = 1.08 First-stage take-up roller temperature (HR 1 ) = 95 ° C. Second-stage take-up roller temperature (HR 2) ) = 100 ° C. Relaxation rate (RR) = 15%, Relaxation temperature (HP) = 195 ° C. Δn of the low orientation portion of the monofilament constituting the obtained multifilament yarn is 30 to 50 × 10 −3 , and the high orientation portion Δn was 90 to 100 × 10 −3 . In addition, the existence period of the low-oriented portion in the fiber axis direction of the multifilament yarn was highly dispersed at 14.3 yarns / m.
【0036】該マルチフィラメント糸の沸水処理時の伸長率
は１．２％、乾熱処理時の伸長率は３．６％であり、沸
水処理後引き続いて実施した乾熱処理により、２．４％
の伸長を示したことになる。また、該マルチフィラメン
ト糸とイソフタル酸を８モル％共重合した改質ポリエス
テルを使用して製造した５５デシテックス／１８フィラ
メントの高収縮糸をエアー混繊し、１４５デシテックス
／５４フィラメントの混繊糸を製造、平織織物を作成
し、３％水酸化ナトリウム水溶液で沸騰温度で処理して
減量率２０％の織物サンプルを得、風合いを評価した結
果、膨らみ感のあるソフトな風合いを有していた。The elongation percentage of the multifilament yarn during the boiling water treatment was 1.2%, and the elongation percentage during the dry heat treatment was 3.6%, and 2.4% by the subsequent dry heat treatment after the boiling water treatment.
This indicates the extension of Further, a high shrinkage yarn of 55 dtex / 18 filaments manufactured using a modified polyester obtained by copolymerizing the multifilament yarn and isophthalic acid at 8 mol% is air-blended, and a mixed fiber of 145 dtex / 54 filaments is formed. Production, a plain woven fabric was prepared and treated with a 3% aqueous sodium hydroxide solution at a boiling temperature to obtain a woven fabric sample with a weight loss rate of 20%, and the texture was evaluated. As a result, the fabric had a swelling soft texture.
【0037】また、該マルチフィラメント糸の編地を作成し
た後、３％水酸化ナトリウム水溶液で沸騰温度で処理し
て減量率２０％の編地サンプルを得、この減量編地サン
プルの繊維表面を、走査型電子顕微鏡で観察したとこ
ろ、繊維表面にａ=０．１〜２μm、１≦ｂ/ａ≦１０の
繊維軸方向に対して縦長のボイド（但し、ａは繊維軸に
垂直方向のボイドの長さ、ｂは繊維軸方向のボイドの長
さ）が存在していた。また、この減量編地サンプルを、
黒色の染料Ｄｉａｎｉｘ Ｂｌａｃｋ ＧＳ−Ｅを、サ
ンプルに対して２２．６％添加した水溶液で、１３５℃
で６０分間処理し、黒色編地サンプルを得た。得られた
黒色編地のＬ値を測定したところ、１３.５であり深色
性に優れていた。After the knitted fabric of the multifilament yarn is prepared, the knitted fabric is treated with a 3% aqueous sodium hydroxide solution at a boiling temperature to obtain a knitted fabric sample having a weight loss rate of 20%. When observed with a scanning electron microscope, it was found that a = 0.1 to 2 μm on the fiber surface and a void elongated in the fiber axis direction of 1 ≦ b / a ≦ 10 (where a is a void perpendicular to the fiber axis). , And b is the length of the void in the fiber axis direction). In addition, this weight loss knitted fabric sample,
135 ° C. in an aqueous solution containing 22.6% of a black dye Dianix Black GS-E added to the sample
For 60 minutes to obtain a black knitted fabric sample. When the L value of the obtained black knitted fabric was measured, it was 13.5, which was excellent in deep color.
【0038】（実施例２）実施例１と同様にして得た未延伸
糸を下記の延伸条件で延伸、緩和熱処理して９０デシテ
ックス／３６フィラメントの太細フィラメントを製造し
た。 一段目延伸倍率（ＤＲ1）＝ＭＤＲ×０．５０ 二段目延伸倍率（ＤＲ2）＝１．０８ 一段目引取りローラー温度（ＨＲ1）＝９５℃ 二段目引取りローラー温度（ＨＲ2）＝１００℃ 得られたマルチフィラメント糸を構成するモノフィラメ
ントの低配向部および高配向部の△ｎは実施例１と同じ
であった。また、マルチフィラメント糸の繊維軸方向の
低配向部の存在周期は１３．４個／ｍで高度に分散して
いた。このマルチフィラメント糸の沸水処理時の伸長率
は０．８％、乾熱処理時の伸長率は３．２％であり、沸
水処理後引き続いて実施した乾熱処理により、２．４％
の伸長を示したことになる。また、該マルチフィラメン
ト糸とイソフタル酸を８モル％共重合した改質ポリエス
テルを使用して製造した５５デシテックス／１８フィラ
メントの高収縮糸をエアー混繊し、１４５デシテックス
／５４フィラメントの混繊糸を製造、平織織物を作成
し、３％水酸化ナトリウム水溶液で沸騰温度で処理して
減量率２０％の織物サンプルを得、風合いを評価した結
果、膨らみ感のあるソフトな風合いを有していた。Example 2 An undrawn yarn obtained in the same manner as in Example 1 was drawn under the following drawing conditions and subjected to a relaxation heat treatment to produce a 90-dentex / 36-filament thick filament. First-stage draw ratio (DR 1 ) = MDR × 0.50 Second-stage draw ratio (DR 2 ) = 1.08 First-stage take-up roller temperature (HR 1 ) = 95 ° C. Second-stage take-up roller temperature (HR 2) ) = 100 ° C. Δn of the low-oriented portion and the high-oriented portion of the monofilament constituting the obtained multifilament yarn was the same as in Example 1. In addition, the existence period of the low-oriented portion in the fiber axis direction of the multifilament yarn was 13.4 / m and was highly dispersed. The elongation percentage of the multifilament yarn during the boiling water treatment was 0.8%, and the elongation percentage during the dry heat treatment was 3.2%, and 2.4% by the subsequent dry heat treatment after the boiling water treatment.
This indicates the extension of Further, a high shrinkage yarn of 55 dtex / 18 filaments manufactured using a modified polyester obtained by copolymerizing the multifilament yarn and isophthalic acid at 8 mol% is air-blended, and a mixed fiber of 145 dtex / 54 filaments is formed. Production, a plain woven fabric was prepared and treated with a 3% aqueous sodium hydroxide solution at a boiling temperature to obtain a woven fabric sample with a weight loss rate of 20%, and the texture was evaluated. As a result, the fabric had a swelling soft texture.
【0039】また、該マルチフィラメント糸の編地を作成し
た後、３％水酸化ナトリウム水溶液で沸騰温度で処理し
て減量率２０％の編地サンプルを得た。この減量編地サ
ンプルの繊維表面を、走査型電子顕微鏡で観察したとこ
ろ、繊維表面にａ=０．１〜２μm、１≦ｂ/ａ≦１０の
繊維軸方向に対して縦長のボイド（但し、ａは繊維軸に
垂直方向のボイドの長さ、ｂは繊維軸方向のボイドの長
さ）が存在していた。また、この減量編地サンプルを、
黒色の染料Ｄｉａｎｉｘ Ｂｌａｃｋ ＧＳ−Ｅを、サ
ンプルに対して２２．６％添加した水溶液で、１３５℃
で６０分間処理し、黒色編地サンプルを得た。得られた
黒色編地のＬ値を測定したところ、１３.８であり深色
性に優れていた。After the knitted fabric of the multifilament yarn was prepared, the knitted fabric was treated with a 3% aqueous sodium hydroxide solution at a boiling temperature to obtain a knitted fabric sample having a weight loss rate of 20%. When the fiber surface of this weight-reduced knitted fabric sample was observed with a scanning electron microscope, voids elongated in the fiber axis direction of a = 0.1 to 2 μm and 1 ≦ b / a ≦ 10 (provided that a is the length of the void in the direction perpendicular to the fiber axis, and b is the length of the void in the direction of the fiber axis). In addition, this weight loss knitted fabric sample,
135 ° C. in an aqueous solution containing 22.6% of a black dye Dianix Black GS-E added to the sample
For 60 minutes to obtain a black knitted fabric sample. When the L value of the obtained black knitted fabric was measured, it was 13.8 and was excellent in deep color.
【0040】（実施例３）実施例１と同様にして得た未延伸
糸を下記の延伸条件で延伸、緩和熱処理して９０デシテ
ックス／３６フィラメントのマルチフィラメント糸を製
造した。得られたマルチフィラメント糸を構成するモノ
フィラメントの低配向部および高配向部の△ｎはそれぞ
れ３０〜５０×１０−３、９０〜１００×１０−３であ
った。また、該マルチフィラメント糸の繊維軸方向の低
配向部の存在周期は１３．９個／ｍで高度に分散してい
た。 一段目延伸倍率（ＤＲ1）＝ＭＤＲ×０．４６ 二段目延伸倍率（ＤＲ2）＝１．０８ 一段目引取りローラー温度（ＨＲ1）＝９５℃ 二段目引取りローラー温度（ＨＲ2）＝９８℃ 緩和率（ＲＲ）＝１５％、緩和温度（ＨＰ）＝１９５℃ 該マルチフィラメント糸の沸水処理時の伸長率は０．５
％、乾熱処理時の伸長率は２．９％であり、沸水処理後
引き続いて実施した乾熱処理により、２．４％の伸長を
示したことになる。また、該マルチフィラメント糸とイ
ソフタル酸を８モル％共重合した改質ポリエステルを使
用して製造した５５デシテックス／１８フィラメントの
高収縮糸をエアー混繊し、１４５デシテックス／５４フ
ィラメントの混繊糸を製造、平織織物を作成し、３％水
酸化ナトリウム水溶液で沸騰温度で処理して減量率２０
％の織物サンプルを得、風合いを評価した結果、膨らみ
感のあるソフトな風合いを有していた。Example 3 An undrawn yarn obtained in the same manner as in Example 1 was drawn under the following drawing conditions and subjected to relaxation heat treatment to produce a multifilament yarn of 90 dtex / 36 filaments. Δn of the low-orientation part and the high-orientation part of the monofilament constituting the obtained multifilament yarn were 30 to 50 × 10 −3 and 90 to 100 × 10 −3 , respectively. In addition, the existence period of the low-oriented portion in the fiber axis direction of the multifilament yarn was 13.9 / m and was highly dispersed. First-stage draw ratio (DR 1 ) = MDR × 0.46 Second-stage draw ratio (DR 2 ) = 1.08 First-stage take-up roller temperature (HR 1 ) = 95 ° C. Second-stage take-up roller temperature (HR 2) ) = 98 ° C. Relaxation rate (RR) = 15%, Relaxation temperature (HP) = 195 ° C. The elongation rate of the multifilament yarn during boiling water treatment is 0.5.
%, And the elongation rate during the dry heat treatment was 2.9%, indicating that the dry heat treatment subsequently performed after the boiling water treatment showed an elongation of 2.4%. Further, a high shrinkage yarn of 55 dtex / 18 filaments manufactured using a modified polyester obtained by copolymerizing the multifilament yarn and isophthalic acid at 8 mol% is air-blended, and a mixed fiber of 145 dtex / 54 filaments is formed. Manufacture, make a plain woven fabric and treat it with a 3% aqueous sodium hydroxide solution at the boiling temperature to reduce the weight by 20%.
% Of the fabric sample, and the texture was evaluated. As a result, the fabric had a soft texture with a swelling feeling.
【0041】また、該マルチフィラメント糸の編地を作成し
た後、３％水酸化ナトリウム水溶液で沸騰温度で処理し
て減量率２０％の編地サンプルを得た。この減量編地サ
ンプルの繊維表面を、走査型電子顕微鏡で観察したとこ
ろ、繊維表面にａ=０．１〜２μm、１≦ｂ/ａ≦１０の
繊維軸方向に対して縦長のボイド（但し、ａは繊維軸に
垂直方向のボイドの長さ、ｂは繊維軸方向のボイドの長
さ）が存在していた。また、この減量編地サンプルを、
黒色の染料Ｄｉａｎｉｘ Ｂｌａｃｋ ＧＳ−Ｅを、サ
ンプルに対して２２．６％添加した水溶液で、１３５℃
で６０分間処理し、黒色編地サンプルを得た。得られた
黒色編地のＬ値を測定したところ、１３.５であり深色
性に優れていた。After the knitted fabric of the multifilament yarn was prepared, the knitted fabric was treated with a 3% aqueous sodium hydroxide solution at a boiling temperature to obtain a knitted fabric sample having a weight loss rate of 20%. When the fiber surface of this weight-reduced knitted fabric sample was observed with a scanning electron microscope, voids elongated in the fiber axis direction of a = 0.1 to 2 μm and 1 ≦ b / a ≦ 10 (provided that a is the length of the void in the direction perpendicular to the fiber axis, and b is the length of the void in the direction of the fiber axis). In addition, this weight loss knitted fabric sample,
135 ° C. in an aqueous solution containing 22.6% of a black dye Dianix Black GS-E added to the sample
For 60 minutes to obtain a black knitted fabric sample. When the L value of the obtained black knitted fabric was measured, it was 13.5, which was excellent in deep color.
【0042】（比較例１）二酸化ケイ素を無添加とした以外
は、実施例１と同様にしてマルチフィラメント糸を得
た。得られたマルチフィラメント糸を構成するモノフィ
ラメントの低配向部および高配向部の△ｎはそれぞれ３
０〜５０×１０−３、９０〜１００×１０−３であっ
た。また、該マルチフィラメント糸の繊維軸方向の低配
向部の存在周期は１４．１個／ｍで高度に分散してい
た。Comparative Example 1 A multifilament yarn was obtained in the same manner as in Example 1, except that silicon dioxide was not added. Δn of the low-oriented portion and the high-oriented portion of the monofilament constituting the obtained multifilament yarn is 3
It was 0 to 50 × 10 −3 and 90 to 100 × 10 −3 . In addition, the existence cycle of the low-oriented portion in the fiber axis direction of the multifilament yarn was 14.1 yarns / m and was highly dispersed.
【0043】しかし、該マルチフィラメント糸の編地を作成
した後、３％水酸化ナトリウム水溶液で沸騰温度で処理
して減量率２０％の編地サンプルを得、減量編地サンプ
ルの繊維表面を、走査型電子顕微鏡で観察したところ、
繊維表面にはボイドが存在せず、減量編地サンプルに、
黒色の染料Ｄｉａｎｉｘ Ｂｌａｃｋ ＧＳ−Ｅをサン
プルに対して２２．６％添加した水溶液で、１３５℃で
６０分間処理し、黒色編地サンプルを得、黒色編地のＬ
値を測定したところ、１４.６であり、深色性が不十分
であった。However, after preparing the knitted fabric of the multifilament yarn, the knitted fabric sample was treated with a 3% aqueous sodium hydroxide solution at a boiling temperature to obtain a knitted fabric sample having a weight loss rate of 20%. When observed with a scanning electron microscope,
There are no voids on the fiber surface.
The sample was treated at 135 ° C. for 60 minutes with an aqueous solution containing 22.6% of a black dye Dianix Black GS-E added to the sample to obtain a black knitted fabric sample.
When the value was measured, it was 14.6, and the deep color was insufficient.
【0044】（比較例２）実施例１と同様にポリエステルポ
リマーを得、得られたポリマーを常法によりチップ化、
乾燥し、孔径０．２０ｍｍの円形孔を３６個有する紡糸
口金より紡糸温度２８３℃で溶融紡糸し、１６００ｍ／
分で巻取って、２２３デシテックス／３６フィラメント
の未延伸糸を製造した。得られた未延伸糸のＭＤＲは
３.６、Ｔｇ＝７５℃、Ｔc＋＝１３８℃であった。この
未延伸繊維を下記の延伸条件で延伸して９０デシテック
ス／３６フィラメントのポリエスマルチテルフィラメン
ト糸を製造した。得られたマルチフィラメント糸の△ｎ
は１５０×１０-3で、配向斑のないものであった。 一段目延伸倍率（ＤＲ1）＝１．０１１ 二段目延伸倍率（ＤＲ2）＝ＭＤＲ×０．６８ 一段目引取りローラー温度（ＨＲ1）＝８５℃ 熱セット温度＝１５０℃ 該マルチフィラメント糸の沸水処理時の伸長率は−８
％、乾熱処理時の伸長率は−１２％と自発伸長性を有し
ていなかった。また、該マルチフィラメント糸の編地を
作成した後、３％水酸化ナトリウム水溶液で沸騰温度で
処理して減量率２０％の編地サンプルを得、減量編地サ
ンプルの繊維表面を、走査型電子顕微鏡で観察したとこ
ろ、繊維表面にａ=０．１〜２μm、１≦ｂ/ａ≦１０の
繊維軸方向に対して縦長のボイドが存在していた（但
し、ａは繊維軸に垂直方向のボイドの長さ、ｂは繊維軸
方向のボイドの長さ）。しかし、この減量編地サンプル
を、黒色の染料Ｄｉａｎｉｘ Ｂｌａｃｋ ＧＳ−Ｅ
を、サンプルに対して２２．６％添加した水溶液で、１
３５℃で６０分間処理し、黒色編地サンプルを得、黒色
編地のＬ値を測定したところ、１４.２であり、深色性
が不十分なものであった。Comparative Example 2 A polyester polymer was obtained in the same manner as in Example 1, and the obtained polymer was formed into chips by a conventional method.
It was dried and melt-spun from a spinneret having 36 circular holes having a hole diameter of 0.20 mm at a spinning temperature of 283 ° C.
The filament was wound in minutes to produce an undrawn yarn of 223 dtex / 36 filaments. The MDR of the obtained undrawn yarn was 3.6, Tg = 75 ° C., and Tc + = 138 ° C. The undrawn fiber was drawn under the following drawing conditions to produce a 90 multi-filament 90 multi-filament polyester multi-filament yarn. Δn of the obtained multifilament yarn
Was 150 × 10 −3 and had no alignment unevenness. First stage draw ratio (DR 1 ) = 1.011 Second stage draw ratio (DR 2 ) = MDR x 0.68 First stage take-up roller temperature (HR 1 ) = 85 ° C Heat set temperature = 150 ° C The multifilament yarn Has an elongation of -8 when treated with boiling water.
%, And the elongation at the time of dry heat treatment was -12%, indicating no spontaneous elongation. After preparing the knitted fabric of the multifilament yarn, the knitted fabric is treated with a 3% aqueous sodium hydroxide solution at a boiling temperature to obtain a knitted fabric sample having a weight loss rate of 20%. When observed with a microscope, voids elongated in the fiber axis direction of a = 0.1 to 2 μm and 1 ≦ b / a ≦ 10 were present on the fiber surface (where a is a perpendicular direction to the fiber axis). Void length, b is the length of the void in the fiber axis direction). However, this weight-reduced knitted fabric sample was prepared using the black dye Dianix Black GS-E.
In an aqueous solution containing 22.6% of 1
The mixture was treated at 35 ° C. for 60 minutes to obtain a black knitted fabric sample, and the L value of the black knitted fabric was measured. As a result, it was 14.2, and the deep color was insufficient.
【0045】[0045]
【発明の効果】本発明のポリエステルマルチフィラメン
ト糸は、高配向部が高度に分散していること、および繊
維表面微多孔化による表面反射光の減少との相乗効果に
よって優れた深色性を示し、自発伸長性を有しているこ
とから風合いにも優れ、衣料用素材、特にブラックフォ
ーマル等の濃色素材として極めて好適なものである。The polyester multifilament yarn of the present invention exhibits excellent deep-color properties due to the high dispersion of highly oriented portions and the synergistic effect with the reduction of surface reflected light due to the microporous fiber surface. Since it has spontaneous extensibility, it also has an excellent texture, and is extremely suitable as a material for clothing, particularly a dark color material such as black formal.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｄ０４Ｂ 1/16 Ｄ０４Ｂ 1/16 21/00 21/00 Ｂ Ｄ０６Ｍ 11/38 Ｄ０６Ｍ 101:32 // Ｄ０６Ｍ 101:32 5/02 Ｄ Ｆターム(参考） 4L002 AA07 AB02 AC06 DA05 EA00 FA01 4L031 AA18 AB32 AB33 BA11 CA01 DA01 DA09 4L035 BB31 BB83 DD07 DD12 EE20 JJ05 4L036 MA05 MA26 MA33 PA03 PA33 UA01 UA12 UA16 4L048 AA21 AA36 AA46 AA47 AB07 AB09 AC07 AC08 CA02 CA03 CA12 CA13 DA02 EB04 ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) D04B 1/16 D04B 1/16 21/00 21/00 B D06M 11/38 D06M 101: 32 // D06M 101 : 32 5/02 DF term (reference) 4L002 AA07 AB02 AC06 DA05 EA00 FA01 4L031 AA18 AB32 AB33 BA11 CA01 DA01 DA09 4L035 BB31 BB83 DD07 DD12 EE20 JJ05 4L036 MA05 MA26 MA33 PA03 PA33 UA01 UA12 A21A46A07A46 AC08 CA02 CA03 CA12 CA13 DA02 EB04
Claims (4)
低配向部と△ｎが７０〜１５０×１０−３の高配向部か
らなるモノフィラメントから構成されるポリエステルマ
ルチフィラメント糸であって、Ｕ％が＋１．０％以上の
ピークが５個／ｍ以上あり、沸水処理時の伸長率が０％
以上、沸水処理に引き続き１３０℃以上で乾熱処理した
時、さらに１％以上の伸長率を示し、アルカリ減量後に
繊維表面にａ＝０．１〜２μｍ、１≦ｂ／ａ≦１０のボ
イド（但し、ａは繊維軸に垂直方向のボイドの長さ、ｂ
は繊維軸方向のボイドの長さ）が形成されることを特徴
とするポリエステルマルチフィラメント糸。1. A there in birefringence △ n polyester multifilament yarn composed of monofilaments made of a high orientation portions of the low orientation portion of 20~65 × 10 -3 △ n is 70 to 150 × 10 -3 5% / m or more peaks with U% of + 1.0% or more, and an elongation rate of 0%
As described above, when the dry heat treatment is performed at 130 ° C. or more subsequent to the boiling water treatment, the fiber exhibits an elongation of 1% or more, and after the alkali weight loss, a = 0.1 to 2 μm, and voids of 1 ≦ b / a ≦ 10 , A is the length of the void perpendicular to the fiber axis, b
Is a void in the fiber axis direction).
ある二酸化ケイ素を０．２〜２重量％含有した請求項１
記載のポリエステルマルチフィラメント糸。2. The method according to claim 1, wherein said silicon dioxide contains 0.2 to 2% by weight of silicon dioxide having an average primary particle size of 0.2 μm or less.
The polyester multifilament yarn according to the above.
ある二酸化ケイ素を０．２〜２重量％含有した、複屈折
率△ｎが２０〜６５×１０−３の未延伸ポリエステルマ
ルチフィラメント糸を下記〜式を同時に満たす条件
で延伸し、引き続いて、式を同時に満足する条件で
緩和熱処理することを特徴とするポリエステルマルチフ
ィラメント糸の製造方法。 ＤＲ１＝ＭＤＲ×（０．４〜０．５５）＞１．０ ＤＲ２＝１．０３〜１．４０ ＨＲ１＝Ｔｇ〜（Ｔｇ＋３０）℃ ＨＲ２＜ Ｔｃ＋ ＲＲ＞５.０ ＨＰ＞（ＨＲ２＋５０）℃ ここで、ＤＲ１は１段目延伸域の延伸倍率。ＤＲ２は２
段目延伸域の延伸倍率。ＭＤＲは予熱温度９０℃で測定
した最大延伸倍率。ＨＲ１は１段目延伸域の引取りロー
ラーの表面温度。ＨＲ２は２段目延伸域の引取りローラ
ーの表面温度。ＲＲは緩和熱処理域の緩和率。ＨＰは緩
和熱処理域の緩和温度。Ｔｃ＋は結晶化温度である。3. An undrawn polyester multifilament having a birefringence Δn of 20 to 65 × 10 −3 containing 0.2 to 2% by weight of silicon dioxide having an average primary particle size of 0.2 μm or less. A method for producing a polyester multifilament yarn, characterized by stretching the yarn under the conditions that simultaneously satisfy the following expressions, and then subjecting the yarn to relaxation heat treatment under the conditions that simultaneously satisfy the expression. DR 1 = MDR × (0.4 to 0.55)> 1.0 DR 2 = 1.03 to 1.40 HR 1 = Tg to (Tg + 30) ° C. HR 2 <Tc + RR> 5.0 HP> ( HR 2 +50) ° C. Here, DR 1 is the stretching ratio of the first-stage stretching region. DR 2 is 2
Stretching magnification of the stage stretching area. MDR is the maximum draw ratio measured at a preheating temperature of 90 ° C. HR 1 is the surface temperature of the take-up roller in the first-stage stretching area. HR 2 is the surface temperature of the take-up roller in the second stretching zone. RR is the relaxation rate in the relaxation heat treatment region. HP is the relaxation temperature of the relaxation heat treatment region. Tc + is the crystallization temperature.
マルチフィラメント糸を少なくとも一部に用いた織編
物。4. A woven or knitted fabric using the polyester multifilament yarn according to claim 1 or 2 at least in part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001046340A JP3960510B2 (en) | 2000-02-29 | 2001-02-22 | Polyester multifilament yarn, production method thereof and woven / knitted fabric thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000-52848 | 2000-02-29 | ||
| JP2000052848 | 2000-02-29 | ||
| JP2001046340A JP3960510B2 (en) | 2000-02-29 | 2001-02-22 | Polyester multifilament yarn, production method thereof and woven / knitted fabric thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001316941A true JP2001316941A (en) | 2001-11-16 |
| JP3960510B2 JP3960510B2 (en) | 2007-08-15 |
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ID=26586327
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001046340A Expired - Fee Related JP3960510B2 (en) | 2000-02-29 | 2001-02-22 | Polyester multifilament yarn, production method thereof and woven / knitted fabric thereof |
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|---|---|---|---|---|
| JP2015117439A (en) * | 2013-12-17 | 2015-06-25 | クラレトレーディング株式会社 | School uniform made of circular-knit fabric |
-
2001
- 2001-02-22 JP JP2001046340A patent/JP3960510B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015117439A (en) * | 2013-12-17 | 2015-06-25 | クラレトレーディング株式会社 | School uniform made of circular-knit fabric |
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