JP2006291402A - Temperature-sensitive synthetic fiber and method for producing the same - Google Patents
Temperature-sensitive synthetic fiber and method for producing the same Download PDFInfo
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- JP2006291402A JP2006291402A JP2005115186A JP2005115186A JP2006291402A JP 2006291402 A JP2006291402 A JP 2006291402A JP 2005115186 A JP2005115186 A JP 2005115186A JP 2005115186 A JP2005115186 A JP 2005115186A JP 2006291402 A JP2006291402 A JP 2006291402A
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- 229920002994 synthetic fiber Polymers 0.000 title claims abstract description 40
- 239000012209 synthetic fiber Substances 0.000 title claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 229920000642 polymer Polymers 0.000 claims abstract description 32
- 230000009477 glass transition Effects 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 8
- 229920002635 polyurethane Polymers 0.000 claims abstract description 8
- 239000004814 polyurethane Substances 0.000 claims abstract description 8
- 238000009987 spinning Methods 0.000 claims abstract description 7
- 238000010622 cold drawing Methods 0.000 claims description 9
- 238000009998 heat setting Methods 0.000 claims description 7
- 239000000835 fiber Substances 0.000 abstract description 22
- 230000000704 physical effect Effects 0.000 abstract description 11
- 239000004744 fabric Substances 0.000 description 14
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 230000001588 bifunctional effect Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 239000004970 Chain extender Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 125000005442 diisocyanate group Chemical group 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 150000003077 polyols Chemical class 0.000 description 2
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- BXKDSDJJOVIHMX-UHFFFAOYSA-N edrophonium chloride Chemical compound [Cl-].CC[N+](C)(C)C1=CC=CC(O)=C1 BXKDSDJJOVIHMX-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- JFNLZVQOOSMTJK-KNVOCYPGSA-N norbornene Chemical compound C1[C@@H]2CC[C@H]1C=C2 JFNLZVQOOSMTJK-KNVOCYPGSA-N 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229920000431 shape-memory polymer Polymers 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 230000035900 sweating Effects 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N urethane group Chemical group NC(=O)OCC JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
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- Artificial Filaments (AREA)
Abstract
Description
本発明は、伸長応力可変性の合成繊維に関し、さらに詳しくは温度によって物性が可逆的に変化する感温性合成繊維に関する。 The present invention relates to a synthetic fiber having variable elongation stress, and more particularly to a thermosensitive synthetic fiber whose physical properties reversibly change with temperature.
従来から合成繊維は、その優れた汎用性と高い物性により、多方面に渡り利用されている。しかし衣料用の布帛とした場合、綿や羊毛等の天然繊維を用いた衣料用布帛が、着用中の温度や湿度の変化によりその物性が変化し、着心地が常に良好に保たれているのに対し、合成繊維では物性の変化が少なく、どうしても着用しているうちに衣服内の温度、湿度が上がり、快適性において劣っているという問題があった。 Conventionally, synthetic fibers have been widely used due to their excellent versatility and high physical properties. However, in the case of a cloth for clothing, the cloth for clothing using natural fibers such as cotton and wool changes its physical properties due to changes in temperature and humidity during wearing, and the comfort is always kept good. On the other hand, synthetic fibers have little change in physical properties, and there is a problem that the temperature and humidity in the clothes rises while wearing and the comfort is inferior.
そこで、例えば変性ポリエチレンテレフタレートとナイロンをサイドバイサイド型に張り合わせた複合繊維で、ナイロンの吸湿による伸び縮みを利用して捲縮を変化させる感湿捲縮複合繊維が提案されている（特許文献１、特許文献２など）。合成繊維に吸湿によって捲縮性自己調整機能を発揮させ、衣服を構成する繊維間の空隙を変化させ、衣服内を快適にする試みである。
しかし、これらは湿度によって衣服内の環境を変えようとする繊維であって、その衣服内において発汗した後にのみ機能するという問題があった。
Thus, for example, a moisture-sensitive crimped composite fiber has been proposed in which a modified polyethylene terephthalate and nylon are bonded to a side-by-side type, and the crimp is changed by utilizing the stretch and shrinkage due to moisture absorption of nylon (Patent Document 1, Patent). Reference 2). It is an attempt to make the inside of the clothes comfortable by causing the synthetic fibers to exert a crimping self-adjusting function by moisture absorption, changing the gaps between the fibers constituting the clothes.
However, these are fibers that try to change the environment in clothes due to humidity, and have a problem that they function only after sweating in the clothes.
本発明は、上記の背景に鑑みなされたものであり、その目的は、温度によってその物性が変化し、衣服内の環境を快適にする感温性合成繊維およびその製造方法を提供することにある。 The present invention has been made in view of the above background, and an object of the present invention is to provide a temperature-sensitive synthetic fiber that changes its physical properties according to temperature and makes the environment in clothes comfortable, and a method for producing the same. .
本発明の感温性合成繊維は、高分子ポリマーからなる合成繊維であって、２０℃での２５％伸長応力Ａが７０ｃＮ以上であり、５０℃での２５％伸長応力Ｂの値が伸長応力Ａの値より４０ｃＮ以上小さい値であることを特徴とする。さらには伸長応力Ｂが６０ｃＮ以下であることや、高分子ポリマーのガラス転移点が２０〜５０℃であること、高分子ポリマーがポリウレタン系であること、単糸繊度が１〜５ｄｔｅｘであることが好ましい。 The temperature-sensitive synthetic fiber of the present invention is a synthetic fiber made of a polymer, and the 25% elongation stress A at 20 ° C. is 70 cN or more, and the value of 25% elongation stress B at 50 ° C. is the elongation stress. The value is 40 cN or more smaller than the value of A. Furthermore, the elongation stress B is 60 cN or less, the glass transition point of the polymer is 20 to 50 ° C., the polymer is polyurethane, and the single yarn fineness is 1 to 5 dtex. preferable.
またもう一つの本発明の感温性合成繊維の製造方法は、高分子ポリマーを紡糸する方法であって、該高分子ポリマーのガラス転移点温度が２０℃〜５０℃であり、ガラス転移点温度の−２０℃〜０℃の範囲で冷延伸することを特徴とする。さらには延伸倍率が最大延伸倍率の６０〜７５％であることや、冷延伸後の熱セット温度が、冷延伸温度以下であること、さらには熱セット倍率が９５〜１４０％であることが好ましい。
そして本発明のマルチフィラメント糸条は、本発明の感温性合成繊維を含むことを特徴とする。
Another method for producing a thermosensitive synthetic fiber of the present invention is a method of spinning a polymer, wherein the polymer polymer has a glass transition temperature of 20 ° C. to 50 ° C. It is characterized by being cold-drawn in the range of -20 ° C to 0 ° C. Furthermore, the draw ratio is preferably 60 to 75% of the maximum draw ratio, the heat setting temperature after cold drawing is not more than the cold drawing temperature, and the heat setting ratio is preferably 95 to 140%. .
And the multifilament yarn of this invention is characterized by including the temperature sensitive synthetic fiber of this invention.
本発明による感温性合成繊維は、温度によってその物性が変化し、その繊維を用いた衣服内環境を快適にするものである。 The temperature-sensitive synthetic fiber according to the present invention changes its physical properties depending on the temperature, and makes the environment in clothes using the fiber comfortable.
本発明の感温性合成繊維は、高分子ポリマーからなる合成繊維であって、２０℃での２５％伸長応力Ａが７０ｃＮ以上であり、５０℃での２５％伸長応力Ｂの値が伸長応力Ａの値より４０ｃＮ以上小さい値である繊維である。さらには２０℃での２５％伸長応力Ａは９０ｃＮ以上であることが好ましく、上限としては３００ｃＮ以下、さらには２００ｃＮ以下であることが好ましい。２０℃での伸長応力が７０ｃＮより小さい場合には、繊維が容易に伸び衣服としての形態安定性を保つことができない。逆に大きすぎたり、断糸する場合には、伸びが無く伸縮性に富んだ布帛とすることができない。 The temperature-sensitive synthetic fiber of the present invention is a synthetic fiber made of a polymer, and the 25% elongation stress A at 20 ° C. is 70 cN or more, and the value of 25% elongation stress B at 50 ° C. is the elongation stress. It is a fiber having a value 40 cN or more smaller than the value of A. Furthermore, the 25% elongation stress A at 20 ° C. is preferably 90 cN or more, and the upper limit is preferably 300 cN or less, and more preferably 200 cN or less. When the elongation stress at 20 ° C. is smaller than 70 cN, the fibers are easily stretched and the form stability as a garment cannot be maintained. On the other hand, if it is too large or breaks, it cannot be made into a fabric having no stretch and rich in elasticity.
そして５０℃での２５％伸長応力Ｂの値は、２０℃の伸長応力Ａの値より４０ｃＮ以上小さい値であることが必須である。さらには差が４５ｃＮ以上、特には５５ｃＮ以上であることが好ましい。差の上限としては１００ｃＮ以下、さらには８０ｃＮ以下であることが好ましい。伸長応力ＡとＢの差が４０ｃＮより小さい場合には、布帛にした場合の温度変化による有効な繊維間空隙を形成することができない。また大きすぎる場合には、伸長応力Ｂの値が小さくなりすぎ繊維が容易に伸び衣服としての形態安定性を保つことができない。
さらに伸長応力Ｂの値は６０ｃＮ以下であることが、さらには５５ｃＮ以下であることが好ましい。また２０ｃＮ以上、さらには４０ｃＮ以上であることが好ましい。
The value of 25% elongation stress B at 50 ° C. must be 40 cN or less smaller than the value of elongation stress A at 20 ° C. Further, the difference is preferably 45 cN or more, particularly 55 cN or more. The upper limit of the difference is preferably 100 cN or less, more preferably 80 cN or less. When the difference between the elongation stresses A and B is less than 40 cN, it is impossible to form an effective interfiber gap due to a temperature change when the fabric is made. On the other hand, if it is too large, the value of the elongation stress B becomes too small, and the fibers are easily stretched and the form stability as clothing cannot be maintained.
Further, the value of the elongation stress B is preferably 60 cN or less, and more preferably 55 cN or less. Further, it is preferably 20 cN or more, more preferably 40 cN or more.
本発明の繊維は、このように温度によって２５％伸長応力が変化することにより、感温性合成繊維を含む布帛は、その外部温度上昇によって伸長応力が小さく、変形しやすくなり、引っ張る力がかかることによって布帛における繊維間空隙が広がり、布帛の通気性が増し、温度、湿度の、布帛の両側での差が小さくなるのである。 Since the fiber of the present invention has a 25% elongation stress that changes depending on the temperature in this way, the fabric containing the temperature-sensitive synthetic fiber has a low elongation stress due to an increase in the external temperature, is easily deformed, and is subjected to a pulling force. As a result, the inter-fiber gap in the fabric is widened, the air permeability of the fabric is increased, and the difference in temperature and humidity on both sides of the fabric is reduced.
また本発明の繊維は１５０％伸長後の残存伸長率が４０％以下、さらには３０〜５％の範囲であることが好ましい。このように残存伸長率が低い場合には、過伸長した際の歪み回復力が強く、布帛にした場合に繰り返し変形を受けても形状が変化せず、長期にわたって効果を持続することが可能となる。このとき残存伸長率とは、初期の長さをＬ０とし、荷重をかけて試験長の１５０％（２．５倍）まで伸ばした後、荷重をなくした時の長さがＬ１のとき、（Ｌ１−Ｌ０）×１００／Ｌ０（単位％）で計算される値である。 The fibers of the present invention preferably have a residual elongation after elongation of 150% of 40% or less, and more preferably in the range of 30 to 5%. In this way, when the residual elongation rate is low, the strain recovery force when overstretching is strong, and even when subjected to repeated deformation when it is made into a fabric, the shape does not change and the effect can be maintained over a long period of time. Become. And this time the residual elongation, and initial length and L 0, after stretching to 150% of the test length (2.5 times) under a load, when the length of time that lost load is L 1 , (L 1 −L 0 ) × 100 / L 0 (unit%).
このような本発明の感温性合成繊維は高分子ポリマーからなる繊維であれば特に制限は無いが、特には高分子ポリマーのガラス転移点が２０℃〜５０℃の範囲であることが好ましい。さらには２５℃〜４０℃の範囲であることが好ましい。このようなガラス転移点を有することによって、そのガラス転移点の上下の温度である２０℃と５０℃の伸長応力を容易にコントロールすることができる。またいわゆる形状記憶性の高分子であることが好ましく、このような樹脂はガラス転移点を容易にこのような範囲に調整できる。 The temperature-sensitive synthetic fiber of the present invention is not particularly limited as long as it is a fiber made of a polymer, but it is particularly preferable that the glass transition point of the polymer is in the range of 20 ° C to 50 ° C. Furthermore, it is preferable that it is the range of 25 to 40 degreeC. By having such a glass transition point, the elongation stress at 20 ° C. and 50 ° C., which are the temperatures above and below the glass transition point, can be easily controlled. Further, a so-called shape memory polymer is preferable, and such a resin can easily adjust the glass transition point to such a range.
高分子ポリマーとしてはウレタン系、スチレン−ブタジエン系、結晶ジエン系、ノルボルネン系等の高分子であることが好ましいが、中でもポリウレタン系高分子であることが好ましい。ポリウレタンとしては２官能ジイソシアネート、２官能ポリオール、及び活性水素基を含む２官能鎖延長剤からなるエーテル系またはエステル系のポリウレタンであることが好ましい。たとえば、ジイソシアネート：ポリオール：鎖延長剤＝２．０〜１．１：１．０：１．０〜０．１となるように配合し、プレポリマ法により重合したものが好適に用いられ、末端にＮＣＯ基とＯＨ基をおおよそ同量有し、結晶化度が３〜５０重量％のものであることが好ましい。このような直線状のポリマーであることと、適度な結晶化度を有することにより熱可塑性を有し、良好に紡糸することが可能である。 The polymer is preferably a urethane, styrene-butadiene, crystalline diene, norbornene, or the like, but is preferably a polyurethane polymer. The polyurethane is preferably an ether-based or ester-based polyurethane composed of a bifunctional diisocyanate, a bifunctional polyol, and a bifunctional chain extender containing an active hydrogen group. For example, diisocyanate: polyol: chain extender = 2.0 to 1.1: 1.0: 1.0 to 0.1 and a polymerized by a prepolymer method is preferably used. It is preferable to have approximately the same amount of NCO groups and OH groups and a crystallinity of 3 to 50% by weight. By being such a linear polymer and having an appropriate degree of crystallinity, it has thermoplasticity and can be spun well.
本発明の感温性合成繊維は、その単糸繊度が１〜５ｄｔｅｘであることが、さらには２〜４ｄｔｅｘであることが好ましい。このような繊度範囲をとることにより、風合い、物性綿から衣料用途に好適に用いることができる。 The temperature-sensitive synthetic fiber of the present invention preferably has a single yarn fineness of 1 to 5 dtex, more preferably 2 to 4 dtex. By taking such a fineness range, it can be suitably used for clothing applications from texture and physical properties cotton.
もう一つの本発明の感温性合成繊維の製造方法は、高分子ポリマーを紡糸する方法であって、該高分子ポリマーのガラス転移点温度が２０℃〜５０℃であり、ガラス転移点温度の−２０℃〜０℃の範囲で冷延伸する方法である。ここで用いられる高分子ポリマーとしては、先の感温性合成繊維で述べた高分子を用いることができ、特に好ましくはポリウレタン系の高分子ポリマーが用いられる。 Another method for producing a thermosensitive synthetic fiber of the present invention is a method of spinning a polymer, wherein the polymer polymer has a glass transition temperature of 20 ° C. to 50 ° C. This is a method of cold drawing in the range of -20 ° C to 0 ° C. As the polymer used here, the polymer described in the above temperature-sensitive synthetic fiber can be used, and a polyurethane-based polymer is particularly preferably used.
但しこのとき該高分子ポリマーのガラス転移点温度は２０℃〜５０℃の範囲であることが必要である。さらにはガラス転移温度が２５℃〜４０℃であることが好ましい。そして本発明の製造方法ではガラス転移点温度の−２０℃〜０℃の範囲で冷延伸することを必須とする。さらには−１５℃〜−５℃の範囲であることが好ましい。このような温度で冷延伸することによって、本発明の製造方法で得られた繊維は、ガラス転移点の前後で物性が大きく変化し、低い温度では伸びにくく、高い温度では容易に伸長する繊維となる。このとき冷延伸する倍率は最大延伸倍率の６０〜７５％であることが、物性および生産性の点からも好ましい。 However, at this time, the glass transition temperature of the polymer is required to be in the range of 20 ° C to 50 ° C. Furthermore, the glass transition temperature is preferably 25 ° C to 40 ° C. And in the manufacturing method of this invention, it is essential to carry out cold drawing in the range of -20 degreeC-0 degreeC of glass transition temperature. Furthermore, it is preferable that it is the range of -15 degreeC--5 degreeC. By cold-drawing at such a temperature, the fiber obtained by the production method of the present invention changes greatly in physical properties before and after the glass transition point, and is difficult to stretch at a low temperature and easily stretches at a high temperature. Become. At this time, the cold stretching ratio is preferably 60 to 75% of the maximum stretching ratio from the viewpoint of physical properties and productivity.
さらには冷延伸後に冷延伸温度以下で熱セットを行うことが好ましく、伸長応力の温度感受性を向上させることができる。また熱セット倍率は９５〜１４０％であることが好ましく、特には１２０〜１４０％であることが好ましい条件である。熱セット倍率を上げることによって、伸長応力の値の絶対値や温度による差を大きくすることができ、より温度感受性を高くすることができる。 Furthermore, it is preferable to perform heat setting at a temperature equal to or lower than the cold drawing temperature after the cold drawing, and the temperature sensitivity of the extension stress can be improved. The heat setting magnification is preferably 95 to 140%, particularly preferably 120 to 140%. By increasing the heat set magnification, it is possible to increase the difference between the absolute value of the elongation stress value and the temperature, and to further increase the temperature sensitivity.
またもう一つの本発明は、上記感温性合成繊維を含んだマルチフィラメント糸条である。糸条の総繊度としては１０〜２００ｄｔｅｘの範囲であり、さらには２０〜１５０ｄｔｅｘであることが好ましい。この糸条には、感温性を調整するために、あるいは他の風合い、質感を得るために、感温性合成繊維以外の他の合成繊維や天然繊維を合撚、または撚糸したものであることも好ましい。このような繊維、糸条を用いることにより腰のある風合いの良好な布帛とすることが可能となる。 Another aspect of the present invention is a multifilament yarn containing the above temperature-sensitive synthetic fiber. The total fineness of the yarn is in the range of 10 to 200 dtex, more preferably 20 to 150 dtex. In order to adjust temperature sensitivity, or to obtain other texture and texture, this yarn is obtained by twisting or twisting other synthetic fibers or natural fibers other than temperature-sensitive synthetic fibers. It is also preferable. By using such fibers and yarns, it is possible to obtain a fabric having a firm texture with a waist.
このような本発明の感温性合成繊維、あるいは糸条を含んだ布帛を衣服として用いた場合には、着用者の動きによって繊維間空隙が生まれ、衣服内気候を快適に保つことが出来る。動きが激しくなるほど、そして温度が高くなるほど、布帛の繊維間空隙が広がるので、特に運動を行う際に用いる衣服において最適に用いられる。 When such a temperature-sensitive synthetic fiber of the present invention or a fabric containing a yarn is used as a garment, a gap between fibers is created by the movement of the wearer, and the climate in the garment can be kept comfortable. The stronger the movement and the higher the temperature, the wider the inter-fiber gap of the fabric. Therefore, the cloth is optimally used especially for clothes used for exercise.
以下、実施例により本発明をさらに詳細に説明するが、本発明はこれらによって何ら限定されるものではない。なお、実施例中の各物性は下記の方法により測定したものである。 EXAMPLES Hereinafter, although an Example demonstrates this invention further in detail, this invention is not limited at all by these. In addition, each physical property in an Example is measured with the following method.
（１）２５％伸長応力
温度２５℃および５０℃において、テンシロン引張試験機を使用して、糸長２５０ｍｍ、引張速度２５０ｍｍ／分で２５％伸長したときの応力を測定した。
(1) 25% Elongation Stress Using a Tensilon tensile tester at temperatures of 25 ° C. and 50 ° C., the stress was measured when the yarn length was extended by 25% at a yarn length of 250 mm and a tensile speed of 250 mm / min.
（２）残存伸長率
２５％伸長応力と同じ条件にて、初期の長さをＬ０とし、荷重をかけて試験長の１５０％（２．５倍）まで伸ばした後、荷重をなくした時の長さがＬ１を測定した。このとき、
（Ｌ１−Ｌ０）×１００／Ｌ０（単位％）
で計算される値を残存伸長率とした。
(2) under the same conditions as the residual elongation of 25% elongation stress, when the initial length and L 0, after stretching to 150% of the test length (2.5 times) under a load, which eliminates the load the length of the measured the L 1. At this time,
(L 1 −L 0 ) × 100 / L 0 (unit%)
The value calculated by the above was defined as the residual elongation rate.
（３）着用試験
得られた感熱性合成繊維糸条を緯糸、ポリエステルテレフタレート繊維糸条を経糸に用いた布帛を作成し、上着に縫製した。着用テストを行い、運動し体温が上昇した際の快適性を、良いものから順に◎、〇、△、×で評価した。
(3) Wear test Fabrics using the obtained heat-sensitive synthetic fiber yarns as wefts and polyester terephthalate fiber yarns as warp yarns were prepared and sewed on a jacket. A wearing test was performed, and the comfort when exercising and body temperature rose was evaluated in the order of goodness by ◎, ○, Δ, ×.
［実施例１］
４,４’ジフェニルメタンジイソシアネート１．７部、ポリプロピレングリコール１．０部、エチレングリコール０．７１部からなるポリウレタン系高分子（ガラス転移温度３５℃）を用いて、紡糸温度が２１０℃、紡糸速度１０００ｍ／分にて紡糸を行い、１７０ｄｔｅｘ／２４フィラメントの原糸を得た。この原糸の最大延伸倍率は３．３倍、ガラス転移温度Ｔｇは３５℃であった。得られた原糸を表１の条件にて冷延伸、熱セットを行い、感温性合成繊維からなる７５ｄｔｅｘ／２４フィラメントの糸条を得た。この糸条の１５０％伸長後の残存伸長率は２５％であった。またこの繊維の２５％伸長応力、および着用テストの結果を表１に併せて示した。
[Example 1]
Using a polyurethane polymer (glass transition temperature 35 ° C.) composed of 1.7 parts of 4,4 ′ diphenylmethane diisocyanate, 1.0 part of polypropylene glycol and 0.71 part of ethylene glycol, the spinning temperature is 210 ° C., and the spinning speed is 1000 m. Spinning was performed at a speed of 1 minute, and a raw yarn of 170 dtex / 24 filament was obtained. This raw yarn had a maximum draw ratio of 3.3 times and a glass transition temperature Tg of 35 ° C. The obtained raw yarn was cold-drawn and heat-set under the conditions shown in Table 1 to obtain a 75 dtex / 24 filament yarn composed of thermosensitive synthetic fibers. The residual elongation after elongation of 150% of this yarn was 25%. The results of 25% elongation stress and wearing test of this fiber are also shown in Table 1.
［実施例２、３、４、比較例１］
延伸条件、熱セット条件を表１記載の条件に変更した以外は、実施例１と同様に行い感温性合成繊維からなる糸条を得た。この繊維の２５％伸長応力、および着用テストの結果も表１に併せて示した。
[Examples 2, 3, 4, Comparative Example 1]
Except that the drawing conditions and heat setting conditions were changed to the conditions shown in Table 1, the same procedure as in Example 1 was carried out to obtain a yarn comprising a thermosensitive synthetic fiber. Table 1 also shows the results of 25% elongation stress and wearing test of this fiber.
Claims (10)
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| EP2811054A4 (en) * | 2012-01-31 | 2015-09-23 | Kuraray Co | COMPOSITE FIBER, PROCESS FOR PRODUCING POLYURETHANE ELASTOMER FABRIC, AND POLYURETHANE ELASTOMER FABRIC |
| JP2019090138A (en) * | 2017-11-16 | 2019-06-13 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | Heat-responsive fabric |
| JP2019090139A (en) * | 2017-11-16 | 2019-06-13 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | Heat-responsive fabric |
| JP2019090140A (en) * | 2017-11-16 | 2019-06-13 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | Heat-responsive fabric |
| JP2019090137A (en) * | 2017-11-16 | 2019-06-13 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | Heat-responsive fabric |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP2811054A4 (en) * | 2012-01-31 | 2015-09-23 | Kuraray Co | COMPOSITE FIBER, PROCESS FOR PRODUCING POLYURETHANE ELASTOMER FABRIC, AND POLYURETHANE ELASTOMER FABRIC |
| JP2019090138A (en) * | 2017-11-16 | 2019-06-13 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | Heat-responsive fabric |
| JP2019090139A (en) * | 2017-11-16 | 2019-06-13 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | Heat-responsive fabric |
| JP2019090140A (en) * | 2017-11-16 | 2019-06-13 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | Heat-responsive fabric |
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| JP7008480B2 (en) | 2017-11-16 | 2022-01-25 | Ｔｏｙｏ Ｔｉｒｅ株式会社 | Heat responsive fabric |
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