JP6884019B2 - Highly shrinkable atmospheric pressure cation dyeable polyester fiber, mixed fiber yarn using it, and fabric using them - Google Patents

Highly shrinkable atmospheric pressure cation dyeable polyester fiber, mixed fiber yarn using it, and fabric using them Download PDF

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JP6884019B2
JP6884019B2 JP2017068138A JP2017068138A JP6884019B2 JP 6884019 B2 JP6884019 B2 JP 6884019B2 JP 2017068138 A JP2017068138 A JP 2017068138A JP 2017068138 A JP2017068138 A JP 2017068138A JP 6884019 B2 JP6884019 B2 JP 6884019B2
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貴郁 森
貴郁 森
雅宏 松永
雅宏 松永
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KB Seiren Ltd
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Description

本発明は、高収縮性常圧カチオン可染性ポリエステル繊維と、それを用いた混繊糸およびそれらを用いた布帛に関する。 The present invention relates to a highly shrinkable normal pressure cation dyeable polyester fiber, a mixed fiber yarn using the polyester fiber, and a fabric using the same.

ポリエステル繊維は、その優れた力学的特性および化学的特性から、衣料用途に数多く利用されている。
しかし、ポリエステル繊維は染色性が劣り、分散染料やカチオン染料を使用して130℃の高温高圧下で染色しなければ、鮮明かつ深みのある色が得られにくい。
したがって、ポリエステル繊維をポリアミド繊維、ポリウレタン繊維、アクリル繊維等の他のポリエステル以外の繊維と組合せて交編、交織した場合、ポリエステルの染色環境である高温高圧下により、組合せた繊維が劣化してしまう。
Polyester fibers are widely used in clothing applications due to their excellent mechanical and chemical properties.
However, the polyester fiber is inferior in dyeability, and it is difficult to obtain a clear and deep color unless it is dyed at a high temperature and high pressure of 130 ° C. using a disperse dye or a cationic dye.
Therefore, when polyester fibers are combined with other non-polyester fibers such as polyamide fibers, polyurethane fibers, and acrylic fibers and interwoven or interwoven, the combined fibers are deteriorated under high temperature and high pressure, which is a polyester dyeing environment. ..

上記の問題を克服するために、100℃の常圧下における染色が可能なポリエステル繊維が開発されている。具体的には、ポリエステルに5−ナトリウムスルホイソフタル酸などのスルホン酸金属塩基を有するジカルボン酸およびポリエチレングリコールなどのポリアルキレングリコールを共重合させることで、カチオン染料による染色を可能とした常圧カチオン可染性ポリエステル繊維である。 In order to overcome the above problems, polyester fibers that can be dyed under normal pressure at 100 ° C. have been developed. Specifically, normal pressure cations capable of dyeing with a cationic dye are possible by copolymerizing polyester with a dicarboxylic acid having a metal sulfonic acid base such as 5-sodium sulfoisophthalic acid and a polyalkylene glycol such as polyethylene glycol. It is a dyeable polyester fiber.

また、常圧カチオン可染性ポリエステル繊維は、導入したスルホン酸基とカチオン染料がイオン結合するため、分散染料と比べ染色性、発色性および堅牢度に優れる。
また、常圧カチオン可染性ポリエステル繊維と、発色性が異なる他の繊維とを組合せて布帛とした場合、杢調を呈するため意匠性に優れた布帛を得ることが出来る。
Further, the atmospheric pressure cationic dyeable polyester fiber is excellent in dyeability, color development and fastness as compared with the disperse dye because the introduced sulfonic acid group and the cationic dye are ionic bonded.
Further, when a normal-pressure cation dyeable polyester fiber and another fiber having different color-developing properties are combined to form a cloth, a cloth having excellent design can be obtained because it exhibits a frosted tone.

上記のことから、常圧カチオン可染性ポリエステル繊維を用いた布帛は、衣料用途に有効に利用することができる。 From the above, fabrics using atmospheric pressure cationic dyeable polyester fibers can be effectively used for clothing applications.

また、衣料用途では、優れた外観の他にフクラミが求められている。
フクラミがある布帛は、熱水収縮率が異なる2種以上の繊維を交編、交織した布帛を熱水収縮させて得ることができる。上記の布帛は、熱水収縮すると、熱水収縮率が高い繊維は大きく収縮するため繊維長が短くなり、熱水収縮率が小さい繊維が布帛の表面に浮き出ることで、フクラミが発現する。
Further, in clothing applications, fluffy texture is required in addition to excellent appearance.
A fabric having fluff can be obtained by interlacing and knitting two or more kinds of fibers having different hot water shrinkage rates and shrinking the interwoven fabric with hot water. When the above-mentioned fabric is shrunk with hot water, the fibers having a high hot water shrinkage rate are greatly shrunk, so that the fiber length is shortened, and the fibers having a small hot water shrinkage rate are raised on the surface of the cloth to develop fluff.

フクラミがある布帛の例として、熱水収縮率が20%以上の常圧カチオン可染性ポリエステル繊維とポリアミド繊維の混繊糸を用いた布帛が知られている(特許文献1)。常圧カチオン可染性ポリエステル繊維を使用しているため、ポリアミド繊維を劣化させることなく、染色することができ、また、常圧カチオン可染性ポリエステル繊維の熱水収縮率が20%以上であるため、染色時の熱水収縮によりポリアミド繊維が表面に浮き出てフクラミが発現することが開示されている。 As an example of a woven fabric having fluff, a fabric using a mixed yarn of a normal pressure cationic dyeable polyester fiber and a polyamide fiber having a hot water shrinkage rate of 20% or more is known (Patent Document 1). Since the normal pressure cationic dyeable polyester fiber is used, it can be dyed without deteriorating the polyamide fiber, and the hot water shrinkage rate of the normal pressure cationic dyeable polyester fiber is 20% or more. Therefore, it is disclosed that the polyamide fibers emerge on the surface due to hot water shrinkage during dyeing and fluffy appearance occurs.

特開平6−299428号公報Japanese Unexamined Patent Publication No. 6-299428

しかしながら、特許文献1において、具体的に記載されている常圧カチオン可染性ポリエステル繊維の熱水収縮率は、30%前後であるが、これを用いて得られる布帛のフクラミは十分とはいえないことがわかった。 However, the hydrothermal shrinkage rate of the atmospheric pressure cationic dyeable polyester fiber specifically described in Patent Document 1 is about 30%, although the fluffiness of the cloth obtained by using this is sufficient. It turned out not.

したがって、本発明の目的は、染色性が良く、良好なフクラミがある布帛を得ることができる高収縮性常圧カチオン可染性ポリエステル繊維を提供することにある。
また、本発明の他の目的は、染色性が良く、良好なフクラミがある布帛を得ることができる混繊糸を提供することにある。
また、本発明の他の目的は、染色性が良く、良好なフクラミがある布帛を提供することにある。
Therefore, an object of the present invention is to provide a highly shrinkable normal pressure cation dyeable polyester fiber capable of obtaining a fabric having good dyeability and good fluffiness.
Another object of the present invention is to provide a mixed yarn capable of obtaining a fabric having good dyeability and good fluffiness.
Another object of the present invention is to provide a fabric having good dyeability and good fluffiness.

本発明者等は、鋭意検討した結果、特定の樹脂組成比からなり、破断強度が2.0cN/dtex以上であり、熱水収縮率が30%以上の常圧カチオン可染性ポリエステル繊維であれば、染色性に優れ、十分なフクラミを持つ布帛を得ることができることを見出し、本発明を完成させた。すなわち、上記目的を達成するため、本発明は、以下の構成を採用する。
(1)主たる繰り返し単位がエチレンテレフタレートであり、ポリエステル全体の酸成分に対して2.0〜3.0モル%の金属スルホネート基含有イソフタル酸成分を含有し、平均分子量が150〜400のポリアルキレングリコールをポリエステル全体に対して2.0〜3.5質量%の割合で含有するポリエステルからなり、破断強度が2.0cN/dtex以上であり、熱水収縮率が30%以上であることを特徴とする高収縮性常圧カチオン可染性ポリエステル繊維。
As a result of diligent studies, the present inventors have made any atmospheric cation dyeable polyester fiber having a specific resin composition ratio, a breaking strength of 2.0 cN / dtex or more, and a hydrothermal shrinkage rate of 30% or more. For example, they have found that a fabric having excellent dyeability and sufficient fluffiness can be obtained, and have completed the present invention. That is, in order to achieve the above object, the present invention adopts the following configuration.
(1) The main repeating unit is ethylene terephthalate, which contains 2.0 to 3.0 mol% of a metal sulfonate group-containing isophthalic acid component with respect to the acid component of the entire polyester, and is a polyalkylene having an average molecular weight of 150 to 400. It is made of polyester containing glycol in a proportion of 2.0 to 3.5% by mass with respect to the entire polyester, and is characterized by having a breaking strength of 2.0 cN / dtex or more and a hot water shrinkage rate of 30% or more. Highly shrinkable normal pressure cation dyeable polyester fiber.

)前記(1)記載の高収縮性常圧カチオン可染性ポリエステル繊維を用いた混繊糸。 (2) combined filament yarn with the (1) Symbol placement high shrinking normal pressure cationic dyeable polyester fiber.

)前記(1)記載の高収縮性常圧カチオン可染性ポリエステル繊維とポリアミド繊維とを用いた混繊糸。 (3) the (1) Symbol placement high shrinking normal pressure cationic dyeable polyester fiber and combined filament yarn with polyamide fibers.

)前記(1)記載の高収縮性常圧カチオン可染性ポリエステル繊維を用いた布帛。 (4) the (1) Symbol fabric using high shrinking normal pressure cationic dyeable polyester fiber of the mounting.

)前記()又は()記載の混繊糸を用いた布帛。 ( 5 ) A fabric using the mixed yarn according to (2 ) or ( 3) above.

本発明により、染色性が良く、フクラミがある布帛を得るための高収縮性常圧カチオン可染性ポリエステル繊維を得ることができる。
また、染色性が良く、フクラミがある布帛を得るための混繊糸を得ることができる。
また、染色性が良く、フクラミがある布帛を得ることができる。
According to the present invention, it is possible to obtain a highly shrinkable normal pressure cation dyeable polyester fiber for obtaining a fabric having good dyeability and fluffiness.
In addition, it is possible to obtain a mixed yarn for obtaining a fabric having good dyeability and fluffiness.
In addition, it is possible to obtain a fabric having good dyeability and fluffiness.

本発明におけるポリエステルは、主たる繰り返し単位がエチレンテレフタレートである。 The main repeating unit of the polyester in the present invention is ethylene terephthalate.

また、ポリエステル全体の酸成分に対して2.0〜3.0モル%の金属スルホネート基含有イソフタル酸(以下、SIPと記す)成分を含有する。SIP成分が2.0モル%以上であれば、十分な常圧カチオン可染性を得ることが出来ると共に、熱水収縮率が高い繊維を得ることができる。また、SIP成分が3.0モル%以下であれば、SIP成分のイオン結合分子間力による粘度上昇やゲル化が発生せず、紡糸操業性が良好である。 Further, it contains 2.0 to 3.0 mol% of a metal sulfonate group-containing isophthalic acid (hereinafter referred to as SIP) component with respect to the acid component of the entire polyester. When the SIP component is 2.0 mol% or more, sufficient atmospheric cation dyeability can be obtained, and fibers having a high hot water shrinkage rate can be obtained. Further, when the SIP component is 3.0 mol% or less, the viscosity increase and gelation due to the ion-bonding intermolecular force of the SIP component do not occur, and the spinning operability is good.

本発明におけるSIP成分は、例えば、5−金属スルホイソフタル酸ジメチル(以下、SIPMと記す)またはジメチル基をエチレングリコールでエステル交換させた化合物(以下、SIPEと記す)等が挙げられる。SIPMは多量に投入するとスラリー物性を悪化させるおそれがあるため、SIPEが好ましい。また、SIP成分の金属としては、ナトリウム、カリウム、リチウムなどが挙げられる。最も好ましいのはナトリウムである。 Examples of the SIP component in the present invention include dimethyl 5-metal sulfoisophthalate (hereinafter referred to as SIPM) or a compound in which a dimethyl group is transesterified with ethylene glycol (hereinafter referred to as SIPE). SIPE is preferable because if a large amount of SIPM is added, the physical characteristics of the slurry may be deteriorated. Moreover, as a metal of the SIP component, sodium, potassium, lithium and the like can be mentioned. Most preferred is sodium.

本発明におけるポリエステルは、平均分子量が150〜400のポリアルキレングリコールを含有する。平均分子量が150以上であれば、溶融紡糸時に加水分解が起こりにくく、融点やガラス転移点が低下しないことにより、ポリエステルペレット同士の融着や仮撚り工程での白粉の発生を防ぐことができる。また、熱水収縮率が高い繊維を得ることができる。平均分子量が400以下であれば堅牢度が優れる。 The polyester in the present invention contains a polyalkylene glycol having an average molecular weight of 150 to 400. When the average molecular weight is 150 or more, hydrolysis is unlikely to occur during melt spinning, and the melting point and the glass transition point do not decrease, so that it is possible to prevent the fusion of polyester pellets and the generation of white powder in the false twisting process. In addition, fibers having a high hot water shrinkage rate can be obtained. When the average molecular weight is 400 or less, the fastness is excellent.

本発明におけるポリアルキレングリコールは、一般式 HO(C H2 O)mH( 但し、n、mは正の整数) で表されるもので、n=2のポリエチレングリコールが汎用的で好ましい。 Polyalkylene glycols of the present invention have the general formula HO (C n H2 n O) mH ( where, n, m is a positive integer) one represented by polyethylene glycol of n = 2 is preferable generic.

本発明におけるポリアルキレングリコールは、共重合、重合時ブレンド、混練時ブレンドなど、いずれの形態で含有してもよいが、後加工工程での安定性の点から、共重合せしめたものであることが好ましい。 The polyalkylene glycol in the present invention may be contained in any form such as copolymerization, blending during polymerization, and blending during kneading, but it must be copolymerized from the viewpoint of stability in the post-processing step. Is preferable.

本発明におけるポリアルキレングリコールの含有量は、ポリエステル全体に対して2.0〜3.5質量%とする必要があり、なかでも2.5〜3.0質量%が好ましい。含有量が2.0質量%以上であれば、常圧カチオン可染性が十分であり、また、SIP成分の電荷による増粘・ゲル化を抑制することができ、紡糸操業性が良好である。また、所望の高収縮性が得られる。含有量が3.5質量%より小さければ、ポリエステルの耐熱性が低下せず、ポリエステルの色調が良好である。また、ガラス転移点が低下しにくいため、ポリエステルペレット同士の融着が発生しにくい。また、布帛としたときに、良好なフクラミが発現する。なお、共重合の際の比率も上記の含有量を共重合せしめたものが好ましい。 The content of the polyalkylene glycol in the present invention needs to be 2.0 to 3.5% by mass with respect to the entire polyester, and more preferably 2.5 to 3.0% by mass. When the content is 2.0% by mass or more, the atmospheric cation dyeability is sufficient, thickening and gelation due to the charge of the SIP component can be suppressed, and the spinning operability is good. .. In addition, the desired high shrinkage can be obtained. When the content is less than 3.5% by mass, the heat resistance of the polyester does not decrease and the color tone of the polyester is good. In addition, since the glass transition point is unlikely to decrease, fusion between polyester pellets is unlikely to occur. Moreover, when it is made into a cloth, good fluffiness is expressed. As for the ratio at the time of copolymerization, it is preferable that the above-mentioned content is copolymerized.

本発明におけるポリエステルの固有粘度は特に限定されるものではなく、通常のポリエステル繊維に利用されている固有粘度と同じで良く、紡糸操業性および力学的強度の点から、0.4〜1.5dl/gであることが好ましい。 The intrinsic viscosity of the polyester in the present invention is not particularly limited and may be the same as the intrinsic viscosity used for ordinary polyester fibers, and is 0.4 to 1.5 dl in terms of spinning operability and mechanical strength. It is preferably / g.

本発明におけるポリエステルは、各種物性を改善する目的で耐光剤、耐熱剤、艶消し剤などの改質剤を添加することができる。 To the polyester in the present invention, a modifier such as a light resistant agent, a heat resistant agent, and a matting agent can be added for the purpose of improving various physical characteristics.

本発明の高収縮性常圧カチオン可染性ポリエステル繊維の熱水収縮率は30%以上であることが必要である。熱水収縮率が30%以上であれば、他の繊維と組合せて布帛としたときに、組合せる繊維との熱水収縮率の差により、良好なフクラミを発現する。また、熱水収縮率は40%以上であることが好ましい。 The hot water shrinkage rate of the highly shrinkable normal pressure cation dyeable polyester fiber of the present invention needs to be 30% or more. When the hot water shrinkage rate is 30% or more, when the fabric is combined with other fibers, good fluffiness is developed due to the difference in the hot water shrinkage rate with the combined fibers. The hot water shrinkage rate is preferably 40% or more.

本発明の高収縮性常圧カチオン可染性ポリエステル繊維の総繊度は、1〜100dtexであることが好ましい。1〜100dtexであれば、主に衣料用途に使用した場合に良好な風合いを保つ。 The total fineness of the highly shrinkable atmospheric pressure cationic dyeable polyester fiber of the present invention is preferably 1 to 100 dtex. If it is 1 to 100 dtex, it keeps a good texture when it is mainly used for clothing.

本発明の高収縮性常圧カチオン可染性ポリエステル繊維の単糸繊度は、0.5〜20dtexであることが好ましい。 The single yarn fineness of the highly shrinkable atmospheric pressure cationic dyeable polyester fiber of the present invention is preferably 0.5 to 20 dtex.

本発明の高収縮性常圧カチオン可染性ポリエステル繊維の破断強度は、2.0cN/dtex以上であることが好ましい。破断強度が2.0cN/dtex以上であれば、紡糸操業性や製編織工程の工程通過性が良好であり、布帛としたときに十分な強度を保つ。また、破断強度が2.0cN/dtex以上であれば、十分な熱収縮応力を持ち、ほかの繊維と組合せて布帛としたときに、高収縮性常圧カチオン可染性ポリエステル繊維が十分に収縮することができるため、良好なフクラミを発現する。 The breaking strength of the highly shrinkable atmospheric pressure cationic dyeable polyester fiber of the present invention is preferably 2.0 cN / dtex or more. When the breaking strength is 2.0 cN / dtex or more, the spinning operability and the process passability of the knitting and weaving process are good, and the fabric is maintained at a sufficient strength. Further, when the breaking strength is 2.0 cN / dtex or more, it has sufficient heat shrinkage stress, and when it is combined with other fibers to form a fabric, the highly shrinkable normal pressure cationic dyeable polyester fiber shrinks sufficiently. Because it can be used, it develops good fluffy texture.

本発明の高収縮性常圧カチオン可染性ポリエステル繊維の破断伸度は、30%以上であることが好ましい。破断伸度が30%以上であれば、紡糸操業性や製編織工程の工程通過性が良好である。 The elongation at break of the highly shrinkable atmospheric pressure cationic dyeable polyester fiber of the present invention is preferably 30% or more. When the elongation at break is 30% or more, the spinning operability and the process passability of the knitting and weaving process are good.

本発明の高収縮性常圧カチオン可染性ポリエステル繊維の繊維横断面形状は、円形状でも、楕円形状でも、また、異形断面としても良い。例えば、異形断面としては、多葉形状、三角形状、扁平形状等が挙げられる。 The fiber cross-sectional shape of the highly shrinkable atmospheric pressure cation dyeable polyester fiber of the present invention may be circular, elliptical, or irregularly shaped. For example, the irregular cross section includes a multi-leaf shape, a triangular shape, a flat shape, and the like.

本発明の高収縮性常圧カチオン可染性ポリエステル繊維の製造方法としては、例えばコンベ方式、POY方式、SPD方式が挙げられるが、省力化、生産性の観点から、SPD方式を採用することが好ましい。 Examples of the method for producing the highly shrinkable atmospheric pressure cationic dyeable polyester fiber of the present invention include the combe method, the POY method, and the SPD method. From the viewpoint of labor saving and productivity, the SPD method can be adopted. preferable.

本発明においてSPD方式で紡糸する際に、紡糸温度は270℃〜300℃であることが好ましい。 In the present invention, when spinning by the SPD method, the spinning temperature is preferably 270 ° C to 300 ° C.

本発明においてSPD方式で紡糸する際に、第1ゴデットローラー(GR1)と第2ゴデットローラー(GR2)の間で延伸を行い、延伸倍率が1.5〜4.0倍となるようにGR2の周速を速くすることが好ましい。延伸倍率が1.5倍以上であれば、繊維の破断強度が高い。また、延伸倍率が4.0倍以下であれば熱水収縮率が高い繊維を得ることができる。 In the present invention, when spinning by the SPD method, stretching is performed between the first godet roller (GR1) and the second godet roller (GR2) so that the draw ratio becomes 1.5 to 4.0 times. It is preferable to increase the peripheral speed of GR2. When the draw ratio is 1.5 times or more, the breaking strength of the fiber is high. Further, when the draw ratio is 4.0 times or less, fibers having a high hot water shrinkage rate can be obtained.

本発明においてSPD方式で紡糸する際に、GR1の温度は、70℃〜90℃であることが好ましい。GR1の温度が70℃以上であれば、紡糸操業性が良好であり、繊維の破断強度および破断伸度が高い。また、90℃以下であれば、熱水収縮率が高い繊維を得ることができる。また、GR2の温度より低いことが好ましい。 In the present invention, when spinning by the SPD method, the temperature of GR1 is preferably 70 ° C. to 90 ° C. When the temperature of GR1 is 70 ° C. or higher, the spinning operability is good, and the breaking strength and breaking elongation of the fiber are high. Further, if the temperature is 90 ° C. or lower, fibers having a high hot water shrinkage rate can be obtained. Further, it is preferably lower than the temperature of GR2.

本発明におけるGR2の温度は、70℃〜120℃であることが好ましい。GR2の温度が70℃以上であれば、紡糸操業性が良好であり、繊維の破断強度および破断伸度が高い。また、120℃以下であれば熱水収縮率が高い繊維を得ることができる。また、GR1の温度より高くすることが好ましい。 The temperature of GR2 in the present invention is preferably 70 ° C to 120 ° C. When the temperature of GR2 is 70 ° C. or higher, the spinning operability is good, and the breaking strength and breaking elongation of the fiber are high. Further, if the temperature is 120 ° C. or lower, fibers having a high hot water shrinkage rate can be obtained. Further, it is preferable that the temperature is higher than the temperature of GR1.

本発明の混繊糸は、高収縮性常圧カチオン可染性ポリエステル繊維と、発色性が異なり熱水収縮率が低い繊維とを組合せることが好適である。発色性が異なり、熱水収縮率が低い繊維と組合せることで、布帛としたときに杢調を呈し、良好なフクラミが発現する。
このような繊維としては、例えば、ポリアミド繊維、ポリウレタン繊維、アクリル繊維等が挙げられる。また、組合せる繊維の熱水収縮率は、15%以下であることが好ましい。組合せる繊維の熱水収縮率が15%以下であれば、布帛としたときにフクラミが発現しやすい。より好ましくは、10%以下である。
中でも、ポリアミド繊維と組合せると、発色性が異なり、布帛としたときに杢調を呈し意匠性に優れる。また、柔らかい風合いで弾力性もありシワになり難く、衣料用途に使用した場合好適である。
The mixed fiber yarn of the present invention is preferably a combination of a highly shrinkable normal pressure cationic dyeable polyester fiber and a fiber having a different color development property and a low hot water shrinkage rate. When combined with fibers having different color development properties and a low hot water shrinkage rate, a heather tone is exhibited when the fabric is used, and good fluffiness is expressed.
Examples of such fibers include polyamide fibers, polyurethane fibers, acrylic fibers and the like. The hot water shrinkage rate of the fibers to be combined is preferably 15% or less. If the hot water shrinkage rate of the fibers to be combined is 15% or less, fluffiness is likely to occur when the fabric is used. More preferably, it is 10% or less.
Above all, when combined with polyamide fiber, the color development property is different, and when it is used as a cloth, it exhibits a heather tone and is excellent in design. In addition, it has a soft texture and elasticity, and is less likely to wrinkle, so it is suitable when used for clothing.

また、仮撚加工した発色性が異なり熱水収縮率が低い繊維と組合せてもよい。組合せる繊維が仮撚加工糸であれば、得られる布帛のフクラミが増す。 Further, it may be combined with a fiber which has a different color-developing property and has a low hot water shrinkage rate after false twisting. If the fibers to be combined are false twisted yarns, the fluffiness of the obtained fabric will increase.

本発明の混繊糸において、高収縮性常圧カチオン可染性ポリエステル繊維と、発色性が異なり熱水収縮率が低い繊維との混繊率は、10:90〜90:10であることが好ましく、20:80〜40:60であることが更に好ましい。高収縮常圧カチオンポリエステル繊維と発色性が異なり熱水収縮率が低い繊維との混繊率が20:80〜40:60の領域では、特に柔軟性とフクラミ感のバランスに優れた布帛を得ることができる。 In the mixed fiber yarn of the present invention, the mixed fiber ratio of the highly shrinkable normal pressure cation dyeable polyester fiber and the fiber having different color development and low hot water shrinkage rate is 10:90 to 90:10. It is preferably 20:80 to 40:60, and more preferably 20:80 to 40:60. In the region where the mixing ratio of the high shrinkage atmospheric pressure cationic polyester fiber and the fiber having a different color development property and a low hot water shrinkage rate is 20:80 to 40:60, a fabric having an excellent balance between flexibility and fluffiness can be obtained. be able to.

混繊糸の熱水収縮率は、30%以上であることが好ましい。混繊糸の熱水収縮率が 30%以上であれば、布帛としたとき、良好なフクラミが発現する。 The hot water shrinkage rate of the mixed fiber yarn is preferably 30% or more. When the hot water shrinkage rate of the mixed fiber yarn is 30% or more, good fluffiness is developed when the fabric is used.

本発明の混繊糸は、エアー混繊、合撚、複合仮撚り等の公知の混繊方法により得ることができる。混繊の制御が容易であり、生産性が良い点からエアー混繊が好ましい。エアー混繊は、例えば、インターレース加工、タスラン加工、旋回気流による加工等により行う。 The mixed fiber yarn of the present invention can be obtained by a known mixed fiber method such as air mixed fiber, combined twist, and composite false twist. Air blending is preferable because it is easy to control the blending and the productivity is good. The air mixed fiber is performed by, for example, interlacing processing, Taslan processing, processing by a swirling airflow, or the like.

本発明の布帛は、上記のような混繊糸を用いることが好適である。
この場合、混繊糸のみで布帛とすることが良好なフクラミを発現させる点から好ましいが、本発明の目的を満たす範囲で、他の繊維を用いてもよい。
For the fabric of the present invention, it is preferable to use the above-mentioned mixed yarn.
In this case, it is preferable to use only the mixed fiber yarn as a cloth from the viewpoint of expressing good fluffiness, but other fibers may be used as long as the object of the present invention is satisfied.

本発明の布帛は、織物でも、編物でも、目的に応じて適宜設定すればよい。織編物の組織は、例えば、織物では平組織、綾組織、朱子組織等が挙げられる。編物では丸編地の天竺組織、インターロック組織、経編地のハーフ組織、サテン組織、ジャカード組織等が挙げられる。これらは、目的に応じて適宜設定すればよい。
本発明の布帛は、公知の製織方法、製編方法で得ることができる。
The fabric of the present invention may be a woven fabric or a knitted fabric, and may be appropriately set according to the intended purpose. Examples of the structure of the woven and knitted fabric include a plain structure, a twill structure, and a red structure in the case of a woven fabric. Examples of knitted fabrics include a circular knitted fabric, an interlocked organization, a warp knitted fabric half organization, a satin organization, and a jacquard organization. These may be appropriately set according to the purpose.
The fabric of the present invention can be obtained by a known weaving method or knitting method.

また、本発明の布帛は、高収縮性常圧カチオン可染性ポリエステル繊維を単独で用い、発色性が異なり熱水収縮率が低い繊維と組合せたものでもよい。
組合せる繊維としては、混繊糸とする際組合せる繊維と同様に、例えば、ポリアミド繊維、ポリウレタン繊維、アクリル繊維等が挙げられ、ポリアミド繊維が好適である。
また、組合せる繊維の熱水収縮率は、15%以下であることが好ましい。熱水収縮率が15%以下であれば、フクラミが発現しやすい。より好ましくは、10%以下である。
Further, the fabric of the present invention may be a fabric in which a highly shrinkable atmospheric pressure cationic dyeable polyester fiber is used alone and combined with a fiber having a different color development property and a low hot water shrinkage rate.
Examples of the fiber to be combined include polyamide fiber, polyurethane fiber, acrylic fiber and the like, as in the case of the fiber to be combined when forming a mixed fiber, and polyamide fiber is preferable.
The hot water shrinkage rate of the fibers to be combined is preferably 15% or less. If the hot water shrinkage rate is 15% or less, fluffiness is likely to occur. More preferably, it is 10% or less.

高収縮性常圧カチオン可染性ポリエステル繊維と発色性が異なり熱水収縮率が低い繊維との組合せ方としては、織物の場合には、経糸または緯糸の一方に、高収縮性常圧カチオン可染性ポリエステル繊維を用い、他方に、発色性が異なり熱水収縮率が低い繊維を用いるようにしてもよいし、両方の糸を引き揃えて経糸及び/または緯糸に用いるようにしてもよい。また、編物の場合には、両方の糸を引き揃えて用いる。 High shrinkage normal pressure cation As a method of combining dyeable polyester fiber and fiber with different color development and low hot water shrinkage rate, in the case of woven fabric, high shrinkage normal pressure cation is possible for either warp or weft. A dyeable polyester fiber may be used, and on the other hand, a fiber having a different color development property and a low hot water shrinkage rate may be used, or both threads may be aligned and used for the warp and / or the weft. In the case of knitting, both threads are aligned and used.

この場合、布帛中において、高収縮性常圧カチオン可染性ポリエステル繊維と、発色性が異なり熱水収縮率が低い繊維との質量比が10:90〜90:10となるようにすることが好ましく、20:80〜40:60となるようにすることが更に好ましい。高収縮常圧カチオンポリエステル繊維と発色性が異なり熱水収縮率が低い繊維との質量比が20:80〜40:60の領域では、特に柔軟性とフクラミ感のバランスに優れた布帛を得ることができる。 In this case, the mass ratio of the highly shrinkable normal pressure cation dyeable polyester fiber to the fiber having different color development and low hot water shrinkage ratio may be 10:90 to 90:10 in the fabric. It is preferable that the ratio is 20:80 to 40:60. In the region where the mass ratio of the high shrinkage atmospheric pressure cationic polyester fiber and the fiber having a different color development property and a low hot water shrinkage ratio is 20:80 to 40:60, a fabric having an excellent balance between flexibility and fluffiness can be obtained. Can be done.

また、本発明の布帛は、本発明の高収縮カチオン可染性ポリエステル繊維の単独糸と、高収縮カチオン可染性ポリエステル繊維を用いた混繊糸とを組合せるようにしてもよい。 Further, the fabric of the present invention may be a combination of a single yarn of the highly shrinkable cationic dyeable polyester fiber of the present invention and a mixed fiber yarn using the highly shrinkable cationic dyeable polyester fiber.

以下に、実施例を挙げて本発明を具体的に説明するが、本発明はこの実施例に限定するものではない。また、実施例中の各評価は以下のようにして行った。 Hereinafter, the present invention will be specifically described with reference to examples, but the present invention is not limited to these examples. In addition, each evaluation in the examples was performed as follows.

(引張試験)
JIS−L−1013に準じ、株式会社島津製作所製AGS−1kNGオートグラフ引張試験機を用い、試料糸長20cm、定速引張速度20cm/minの条件で測定した。荷重−伸び曲線での荷重の最高値を繊度で除した値を破断強度(cN/dtex)とし、そのときの伸び率を破断伸度(%)とし、5回測定の平均値を求めた。
(Tensile test)
According to JIS-L-1013, the measurement was performed using an AGS-1kNG autograph tensile tester manufactured by Shimadzu Corporation under the conditions of a sample yarn length of 20 cm and a constant velocity tensile speed of 20 cm / min. The value obtained by dividing the maximum value of the load on the load-elongation curve by the fineness was defined as the breaking strength (cN / dtex), and the elongation rate at that time was defined as the breaking elongation (%), and the average value of five measurements was obtained.

(熱水収縮率測定)
常圧カチオン可染性ポリエステル繊維又はそれを用いた混繊糸の熱水収縮率は、試料糸に、0.03g×デシテックスの荷重をかけ、正しく500mmを測って2点打ち、初荷重を除き、これを100℃の熱水中に30分間浸漬した後、風乾し再び0.03g×デシテックスの荷重をかけ、印をつけた2点間の長さL(mm)を測り、下式によって熱水収縮率を算出した。5回測定し、その平均値を求めた。
熱水収縮率(%)={(500−L)/500}×100
(Measurement of hot water shrinkage rate)
The hot water shrinkage rate of atmospheric cation dyeable polyester fiber or mixed fiber yarn using it is as follows: Apply a load of 0.03 g × decitex to the sample yarn, measure 500 mm correctly, hit two points, and remove the initial load. After immersing this in hot water at 100 ° C for 30 minutes, air-dry it, apply a load of 0.03 g × decitex again, measure the length L (mm) between the two marked points, and heat by the following formula. The water shrinkage rate was calculated. It was measured 5 times and the average value was calculated.
Hot water shrinkage rate (%) = {(500-L) / 500} x 100

(紡糸操業性)
実施例1〜5及び比較例1〜6において、常圧カチオン可染性ポリエステル繊維を製造したときの、紡糸濾過圧上昇具合、糸切れ回数から、良い方から順に、○、△、×にて評価した。
(Spinning operability)
In Examples 1 to 5 and Comparative Examples 1 to 6, in order from the degree of increase in the spinning filtration pressure and the number of yarn breaks when the normal pressure cationic dyeable polyester fiber was produced, in order from the best, ○, Δ, ×. evaluated.

(カチオン染料染着性)
常圧カチオン可染性ポリエステル繊維を用いて筒編み試料を作製し、カチオン染料による染着性能は、Kayacryl Blue GSL−ED(日本化薬株式会社製)3.0%owf、酢酸0.2g/l、浴比1:50にて常圧沸騰温度(98℃)で60分間染色し、染色前後の染色液吸光度を測定した。そして、吸尽率(%)を下記の式より算出し、吸尽率が90%以上の場合を○、80%以上90%未満の場合を△、80%未満の場合を×として評価した。
吸尽率(%)={(染色前吸光度−染色後吸光度)/染色前吸光度}×100
(Cation dye dyeing property)
A tubular knitting sample was prepared using atmospheric pressure cationic dyeable polyester fiber, and the dyeing performance with the cationic dye was Kayacryl Blue GSL-ED (manufactured by Nippon Kayaku Co., Ltd.) 3.0% boiling, 0.2 g of acetate / The dyeing was carried out at a bath ratio of 1:50 at normal pressure boiling temperature (98 ° C.) for 60 minutes, and the absorbance of the dyeing solution before and after dyeing was measured. Then, the exhaustion rate (%) was calculated from the following formula, and the case where the exhaustion rate was 90% or more was evaluated as ◯, the case where the exhaustion rate was 80% or more and less than 90% was evaluated as Δ, and the case where it was less than 80% was evaluated as ×.
Absorption rate (%) = {(absorbance before staining-absorbance after staining) / absorbance before staining} x 100

(耐光性)
常圧カチオン可染性ポリエステル繊維を用いて筒編み試料を作製し、Kayacryl Blue GSL−ED(日本化薬株式会社製)0.2%owfまたは1.0%owfにて常圧下98℃で浴比1:30にて30分間染色し、水洗後に乾燥し、160℃×1分ヒートセットを施した後、それぞれをフェードメータにて63℃の環境下、20時間耐光試験したもの、40時間耐光試験したものをブランクと比較し、退色状況を比較した。なお、判定には20時間耐光試験後ブランクとの差がないものを3級以上、40時間耐光試験後ブランクとの差がないものを4級以上とし、3級未満を×、3級以上4級未満を△、4級以上を○とした。
(Light resistance)
A tubular knitting sample is prepared using normal pressure cationic dyeable polyester fiber, and bathed at 98 ° C. under normal pressure at 0.2% owf or 1.0% owf of Kayacryl Blue GSL-ED (manufactured by Nippon Kayaku Co., Ltd.). Dyeing at a ratio of 1:30 for 30 minutes, washing with water, drying, heat-setting at 160 ° C for 1 minute, and then performing a light resistance test for 20 hours in an environment of 63 ° C with a fade meter, and light resistance for 40 hours. The tested one was compared with the blank, and the fading situation was compared. In the judgment, those that are not different from the blank after the 20-hour light resistance test are classified as grade 3 or higher, those that are not different from the blank after the 40-hour light resistance test are classified as grade 4 or higher, and those less than grade 3 are × grade 3 or higher 4 Less than grade was marked with Δ, and grade 4 and above were marked with ○.

(厚さ測定)
作製した布帛の厚さは、シックネスゲージSM−114(株式会社テクロック製)を用いて、測定面積0.25πcm に0.120kgの荷重をかけて厚みを5か所測定し、平均値を布帛の厚さとした。
(Thickness measurement)
The thickness of the produced fabric was measured at 5 locations by applying a load of 0.120 kg to a measurement area of 0.25π cm 2 using a thickness gauge SM-114 (manufactured by Teclock Co., Ltd.), and the average value was measured for the fabric. It was the thickness of.

(フクラミ評価)
作製した布帛を手で触り、フクラミを評価した。評価基準は以下の通りである。
非常に優れる:◎
優れる:○
やや劣る:△
劣る:×
(Fukurami evaluation)
The prepared fabric was touched by hand to evaluate the fluff. The evaluation criteria are as follows.
Very good: ◎
Excellent: ○
Slightly inferior: △
Inferior: ×

(実施例1)
主たる繰り返し単位がエチレンテレフタレートであり、ポリエステル全体の酸成分に対して2.5モル%の5−ナトリウムスルホネート基含有イソフタル酸(SIPE)を含有し、平均分子量が200のポリエチレングリコール(PEG)をポリエステル全体に対して3.0質量%の割合で含有する常圧カチオン可染性ポリエステル樹脂を、289℃で溶融吐出し、周速940m/min、温度78℃のGR1と、周速3100m/min、温度100℃のGR2で3.3倍に延伸し、33dtex/12fの高収縮性常圧カチオン可染性ポリエステル繊維を作製した。
作製した繊維の引張試験測定と熱水収縮率測定を実施すると共に、紡糸操業性、染着性、耐光性を評価した。
(Example 1)
The main repeating unit is ethylene terephthalate, and polyester is a polyester glycol (PEG) containing 2.5 mol% of 5-sodium sulfonate group-containing isophthalic acid (SIPE) with respect to the acid component of the entire polyester and having an average molecular weight of 200. The atmospheric cation dyeable polyester resin contained in a proportion of 3.0% by mass based on the whole was melt-discharged at 289 ° C., GR1 having a peripheral speed of 940 m / min and a temperature of 78 ° C., and a peripheral speed of 3100 m / min. It was stretched 3.3 times in GR2 at a temperature of 100 ° C. to prepare a highly shrinkable atmospheric pressure cation dyeable polyester fiber of 33 dtex / 12f.
Tensile test measurement and hot water shrinkage measurement of the produced fiber were carried out, and spinning operability, dyeing property, and light resistance were evaluated.

次に、実施例1で作製した繊維と、破断強度4.60cN/dtex、破断伸度43.0%、熱水収縮率10.5%である56dtex/48fのナイロン6繊維(KBセーレン株式会社製)とを1本ずつ用い(混繊率37:63)、エアー混繊して交絡数が20〜70個/mの混繊糸を作製した。
得られた混繊糸で、英光産業株式会社製NCR−EWを用いて丸編みを実施し、ウェール58、コース40の編地を得た。得られた編地を98℃にてカチオン染料1.0質量%で染色後、フクラミ評価を実施した。
これらの結果を表1に併せて示す。
Next, the fibers produced in Example 1 and 56 dtex / 48f nylon 6 fibers having a breaking strength of 4.60 cN / dtex, a breaking elongation of 43.0%, and a hot water shrinkage rate of 10.5% (KB Seiren Co., Ltd.) (Manufactured) and one by one (mixed fiber ratio 37:63) were mixed with air to prepare a mixed fiber yarn having a number of entanglements of 20 to 70 pieces / m.
With the obtained mixed yarn, circular knitting was carried out using NCR-EW manufactured by Eiko Sangyo Co., Ltd. to obtain knitted fabrics of wales 58 and course 40. The obtained knitted fabric was dyed at 98 ° C. with 1.0% by mass of a cationic dye, and then evaluated for fluffiness.
These results are also shown in Table 1.

(実施例2〜実施例5、比較例1〜比較例6)
表1に示すように、樹脂組成比、PEGの分子量を変更した他は、実施例1と同様にして、高収縮性常圧カチオン可染性ポリエステル繊維を作製した。
作製した繊維の引張試験測定と熱水収縮率測定を実施すると共に、紡糸操業性、染着性、耐光性を評価した。
次に、実施例1と同様にして、混繊糸を作製し、得られた混繊糸で編地を作製し、染色した後、フクラミ評価を実施した。
これらの結果を表1に併せて示す。
(Examples 2 to 5, Comparative Examples 1 to 6)
As shown in Table 1, a highly shrinkable normal pressure cation dyeable polyester fiber was produced in the same manner as in Example 1 except that the resin composition ratio and the molecular weight of PEG were changed.
Tensile test measurement and hot water shrinkage measurement of the produced fiber were carried out, and spinning operability, dyeing property, and light resistance were evaluated.
Next, a mixed fiber yarn was prepared in the same manner as in Example 1, a knitted fabric was prepared from the obtained mixed fiber yarn, dyed, and then fluffy evaluation was carried out.
These results are also shown in Table 1.

Figure 0006884019
Figure 0006884019

(実施例6)
GR1の周速を940m/minとし、GR2の温度を118℃としたこと以外は実施例1と同様にして高収縮性常圧カチオン可染性ポリエステル繊維を製造し、破断強度、破断伸度、熱水収縮率測定を実施した。また、実施例1と同様にして混繊糸を作製し、熱水収縮率測定を実施した。また、実施例1と同様にして布帛を作製し、染色した後、厚さ測定、フクラミ評価実施した。
(Example 6)
Highly shrinkable normal pressure cation dyeable polyester fiber was produced in the same manner as in Example 1 except that the peripheral speed of GR1 was 940 m / min and the temperature of GR2 was 118 ° C. Hot water shrinkage was measured. Further, a mixed fiber yarn was produced in the same manner as in Example 1, and the hot water shrinkage rate was measured. Further, a cloth was prepared in the same manner as in Example 1, dyed, and then thickness measurement and fluffy evaluation were carried out.

(実施例7)
実施例1と同じ樹脂を用いて表2に記載の物性を有する繊維を製造し、破断強度、破断伸度、熱水収縮率測定を実施した。また、実施例1と同様にして混繊糸を作製し、熱水収縮率測定を実施した。また、実施例1と同様にして布帛を作製し、染色した後、厚さ測定、フクラミ評価を実施した。
(Example 7)
Fibers having the physical properties shown in Table 2 were produced using the same resin as in Example 1, and the breaking strength, breaking elongation, and hot water shrinkage were measured. Further, a mixed fiber yarn was produced in the same manner as in Example 1, and the hot water shrinkage rate was measured. Further, a cloth was prepared in the same manner as in Example 1, dyed, and then thickness measurement and fluffy evaluation were carried out.

(実施例8)
GR1の周速を1000m/minとし、GR2の温度を80℃としたこと以外は実施例1と同様にして繊維を製造し、破断強度、破断伸度、熱水収縮率測定を実施した。また、実施例1と同様にして混繊糸を作製し、熱水収縮率測定を実施した。また、実施例1と同様にして布帛を作製し、染色した後、厚さ測定、フクラミ評価を実施した。
(Example 8)
Fibers were produced in the same manner as in Example 1 except that the peripheral speed of GR1 was 1000 m / min and the temperature of GR2 was 80 ° C., and the breaking strength, breaking elongation, and hydrothermal shrinkage were measured. Further, a mixed fiber yarn was produced in the same manner as in Example 1, and the hot water shrinkage rate was measured. Further, a cloth was prepared in the same manner as in Example 1, dyed, and then thickness measurement and fluffy evaluation were carried out.

(比較例7)
GR1の周速を940m/minとし、GR2の温度を123℃としたこと以外は実施例1と同様にして繊維を製造し、破断強度、破断伸度、熱水収縮率測定を実施した。また、実施例1と同様にして混繊糸を作製し、熱水収縮率測定を実施した。また、実施例1と同様にして布帛を作製し、染色した後、厚さ測定、フクラミ評価を実施した。
(Comparative Example 7)
Fibers were produced in the same manner as in Example 1 except that the peripheral speed of GR1 was 940 m / min and the temperature of GR2 was 123 ° C., and the breaking strength, breaking elongation, and hydrothermal shrinkage were measured. Further, a mixed fiber yarn was produced in the same manner as in Example 1, and the hot water shrinkage rate was measured. Further, a cloth was prepared in the same manner as in Example 1, dyed, and then thickness measurement and fluffy evaluation were carried out.

(比較例8)
GR1の周速を1200m/minとし、GR2の温度を160℃としたこと以外は実施例1と同様にして繊維を製造し、破断強度、破断伸度、熱水収縮率測定を実施した。また、実施例1と同様にして混繊糸を作製し、熱水収縮率測定を実施した。また、実施例1と同様にして布帛を作製し、染色した後、厚さ測定、フクラミ評価を実施した。
(Comparative Example 8)
Fibers were produced in the same manner as in Example 1 except that the peripheral speed of GR1 was 1200 m / min and the temperature of GR2 was 160 ° C., and the breaking strength, breaking elongation, and hydrothermal shrinkage were measured. Further, a mixed fiber yarn was produced in the same manner as in Example 1, and the hot water shrinkage rate was measured. Further, a cloth was prepared in the same manner as in Example 1, dyed, and then thickness measurement and fluffy evaluation were carried out.

実施例1、実施例6〜実施例8及び比較例7,比較例8の結果を表2に併せて示す。 The results of Example 1, Example 6 to Example 8, Comparative Example 7, and Comparative Example 8 are also shown in Table 2.

Figure 0006884019
Figure 0006884019

実施例1および実施例6〜実施例8の常圧カチオン可染性ポリエステル繊維は、破断強度、破断伸度は十分高い値を示した。また、水収縮率は30%以上であり、混繊糸としても十分高い熱水収縮率であった。ポリアミド繊維と組合せて混繊糸としても、常圧カチオン可染性ポリエステル繊維は収縮した。また、布帛としたときの染色前後の厚み変化は大きく、特に、実施例7および実施例8の布帛は、フクラミは◎であった。
The atmospheric pressure cationic dyeable polyester fibers of Examples 1 and 6 to 8 showed sufficiently high values of breaking strength and breaking elongation. Further, the hot water shrinkage rate was 30% or more, which was a sufficiently high hot water shrinkage rate even as a mixed fiber yarn. The atmospheric cation dyeable polyester fiber shrank even when it was used as a mixed fiber in combination with the polyamide fiber. In addition, the change in thickness before and after dyeing was large when the fabric was used, and in particular, the fabrics of Examples 7 and 8 had a fluffy appearance of ⊚.

比較例7および比較例8は、破断強度、破断伸度は高い値を示したが、熱水収縮率は30%未満であり、熱水収縮率が低い程、布帛としたときの染色前後の厚み変化は小さく、フクラミは△または×であった。 Comparative Example 7 and Comparative Example 8 showed high values of breaking strength and breaking elongation, but the hot water shrinkage rate was less than 30%, and the lower the hot water shrinkage rate, the more before and after dyeing when the fabric was made. The change in thickness was small, and the fluff was Δ or ×.

本発明の高収縮性常圧カチオン可染性ポリエステル繊維は、優れた外観とフクラミが要求される布帛に好適に使用される。 The highly shrinkable atmospheric pressure cation dyeable polyester fiber of the present invention is suitably used for fabrics that require excellent appearance and fluffiness.

Claims (5)

主たる繰り返し単位がエチレンテレフタレートであり、ポリエステル全体の酸成分に対して2.0〜3.0モル%の金属スルホネート基含有イソフタル酸成分を含有し、平均分子量が150〜400のポリアルキレングリコールをポリエステル全体に対して2.0〜3.5質量%の割合で含有するポリエステルからなり、破断強度が2.0cN/dtex以上であり、熱水収縮率が30%以上であることを特徴とする高収縮性常圧カチオン可染性ポリエステル繊維。 The main repeating unit is ethylene terephthalate, and polyester is a polyalkylene glycol containing 2.0 to 3.0 mol% of a metal sulfonate group-containing isophthalic acid component with respect to the acid component of the entire polyester and having an average molecular weight of 150 to 400. It is made of polyester contained in a proportion of 2.0 to 3.5% by mass based on the whole, has a breaking strength of 2.0 cN / dtex or more, and has a hot water shrinkage rate of 30% or more. Shrinkable atmospheric cation dyeable polyester fiber. 請求項1記載の高収縮性常圧カチオン可染性ポリエステル繊維を用いた混繊糸。 Combined filament yarn with highly shrinkable normal pressure cationic dyeable polyester fiber of claim 1 Symbol placement. 請求項1記載の高収縮性常圧カチオン可染性ポリエステル繊維とポリアミド繊維とを用いた混繊糸。 Combined filament yarn with a high shrinkage normal pressure cationic dyeable polyester fiber and polyamide fiber according to claim 1 Symbol placement. 請求項1記載の高収縮性常圧カチオン可染性ポリエステル繊維を用いた布帛。 Fabric using high shrinking normal pressure cationic dyeable polyester fiber of claim 1 Symbol placement. 請求項又は請求項記載の混繊糸を用いた布帛。 A fabric using the mixed yarn according to claim 2 or 3.
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