JP3849204B2 - Method for producing dyed fabric - Google Patents

Method for producing dyed fabric Download PDF

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Publication number
JP3849204B2
JP3849204B2 JP04062797A JP4062797A JP3849204B2 JP 3849204 B2 JP3849204 B2 JP 3849204B2 JP 04062797 A JP04062797 A JP 04062797A JP 4062797 A JP4062797 A JP 4062797A JP 3849204 B2 JP3849204 B2 JP 3849204B2
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Japan
Prior art keywords
dyeing
fabric
dyed
dyed fabric
oligomer
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JP04062797A
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Japanese (ja)
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JPH10245784A (en
Inventor
勲 松田
悦暉 長谷川
陽一郎 小津
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Toray Industries Inc
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Toray Industries Inc
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Description

【0001】
【発明の属する技術分野】
本発明はポリエステルフィラメント糸を用いた布帛を分散染料で染色し、オリゴマー因による染めむらのない染色布帛の製造方法に関する。
【0002】
【従来の技術】
紡糸速度が2,000m/分前後で紡糸されたポリエステルフィラメント糸を用いた繊維布帛を分散染料で染色するに際しては、染色浴はpH4.5〜pH6.0でかつ130℃前後の高温高圧下で染色されるのが一般的であるが、近年、製糸の生産性向上と合理化のためポリエステルフィラメント糸の紡糸速度は益々高速化が進んでおり、今後はこの高速紡糸されたポリエステルフィラメント糸を用いた布帛をオリゴマー因による染めむらのない状態に染色する染色布帛の製造方法が急務である。
【0003】
すなわち、従来のポリエステル繊維布帛において、オリゴマーの影響による染めむらは、あまり問題視されていなかったが、上記したような高速紡糸されたポリエステルフィラメント糸を用いた繊維布帛を液流染色機を使用し、分散染料で染色する際、染色浴はpH4.5〜pH6.0で、かつ130℃前後の高温高圧の条件下で製造された染色布帛はロープしわ状の濃染された部分と僅かに淡色になった部分が染めむらとして顕在化し、染色布帛として品位が不合格となる。
【0004】
この問題につき濃染された部分と僅かに淡色になった部分を走査型電子顕微鏡で繊維表面を比較すると、明らかに淡色になった部分と濃染された部分とでオリゴマーの付着状態に差が認められ、前者が後者より、より多く付着していることが認められた。
【0005】
さらに、ウォータジェットルームやエアジェットルームによる製織の高速化が進み、アクリル糊剤など精練で完全に除去が難しい製織糊剤が多用される傾向にある。これらは全て染色加工における染めむらのない均一な染色布帛を得ることを困難にしている。
【0006】
繊維布帛に付着したオリゴマーの除去方法として、特開昭48−73596号公報に示されているように、超音波を利用し洗浄除去することも可能であるが、設備的な問題もあり、また生産性の面から実用化は難しい。
【0007】
また、カセイソーダを利用した強アルカリ下での還元洗浄によりオリゴマーを可溶化させる手段は、染色時間の延長につながり、生産性を低下させるので優れた手段とはいえない。
【0008】
一方、特開平3−90686号公報あるいは特開平1−192885号公報に示されている、精練効果とオリゴマーの分散性の効果を有する薬剤下でのアルカリ染色は、強アルカリで効果が認められるものの、使用染料面に制約を受けるなどの問題がある。
【0009】
【発明が解決しようとする課題】
本発明の目的は、紡糸速度が5,000m/分以上で紡糸されたポリエステルフィラメント糸を用いた繊維布帛を分散染料で染色するに際して、新規の設備を導入することなく、さらには染色時間の延長による生産性を低下させることなく、オリゴマー因による染めむらのない染色布帛を得ることができる染色布帛の製造方法を提供することにある。
【0010】
【課題を解決するための手段】
上記の本発明の目的は、紡糸速度が5,000m/分以上で紡糸されたポリエステルフィラメント糸を用いた布帛を分散染料で染色するに際し、オリゴマー除去剤の存在下で染色浴のpHが8.5以上9.0未満の状態で染色することを特徴とする染色布帛の製造方法によって達成される。
【0011】
【発明の実施の形態】
以下、本発明を詳細に説明する。まず、本発明に用いるポリエステルは、ポリエステルを構成する主たるジカルボン酸成分がテレフタル酸成分であることが好ましいが、それ以外のジカルボン酸成分を本発明の目的を逸脱しない範囲で使用、あるいは併用してもよい。
【0012】
また、本発明に用いるポリエステルを構成する主たるジオール成分はエチレングリコールが好ましいが、それ以外の成分、たとえば1,4ブタンジオール、1,6ヘキサンジオール、1,4−シクロヘキサンジメタノール、ポリエチレングリコール、ポリテトラメチレングリコールなどのジオール成分などを、本発明の目的を逸脱しない範囲で使用、あるいは併用してもよい。
【0013】
さらに、本発明に使用するポリエステルには、各種の添加剤、例えば、艶消剤、難燃剤、酸化防止剤、紫外線吸収剤、赤外線吸収剤、結晶核剤、蛍光増白剤などを必要に応じて共重合または混合してもよい。
【0014】
上記のポリエステルを溶融紡糸により5,000m/分以上の速度で引き取られて高速紡糸されたものを対象とし、好ましくは5,000m/分以上8,000m/分未満で引取られた糸条を対象とする。4,000m/分以下の速度で引き取られたポリエステルではオリゴマーの発生量が少なく、加工欠点にはなりにくかった。かかる5,000m/分以上の高速紡糸により得られたポリエステルの複屈折率は、0.090以上0.143未満であるものが好ましい。
【0015】
上記の高速紡糸されたポリエステル糸条は、マルチフィラメント、あるいはモノフィラメントいずれでもよい。また繊維糸条の繊度は特に限定されるものではない。
【0016】
また、本発明に係るポリエステルフィラメント糸を用いた繊維布帛は、織物、編物、あるいは不織布などその形態は特に限定されない。また該ポリエステルフィラメント糸の混用率は30〜100%、より好ましくは40〜100%でより顕著な効果が認められる。
【0017】
本発明における染色布帛の製造方法は、オリゴマー除去剤の存在下で、染色浴はpH8.5以上9.0未満で染色することにあり、オリゴマー除去剤は下記の(1)の構造式で示される有機アミン類が好ましい。
【0018】
3-nN[R´−OH]n …(1)
(1)式中、R´はC2 4 またはC3 6 を表し、nは1〜3の整数を表し、RはHまたはC1-5 のアルキル基を表す
【0019】
また、染色浴のpH変動を少なくし、pH8.5以上pH9.0未満を一定に保持するため、pH緩衝剤を併用するのが好ましい。例えば、酢酸/ピロリン酸ナトリュウム、リン酸二水素ナトリュウム/リン酸水素二ナトリュウムまたは有機リン化合物とポリカルボン酸との組合わせなどが挙げられる。使用濃度は特に限定されないが一般的に0.5〜2g/lである。
【0020】
本発明の染色浴は、染色前がpH9.0未満とし、染色後はpH8.5以上に調整されるという特徴がある。該pH領域は使用する分散染料の加水分解による変色もなく、従来の酸性浴染色で使用している染料がほぼ使用できる特徴がある。
【0021】
また、本発明の染色浴中に染色助剤として分散均染剤を添加してもよい。分散均染剤として、ナフタレンスルン酸のホルムアルデヒド縮合物、ポリオキシアルキレンアルキルアリールエーテル、ポリオキシアルキレンアルキルエステル、ポリオキシアルキレンアルキルアリールエーテル硫酸エステル塩、ポリオキシアルキレンアリールエーテル硫酸エステル塩などが使用され、染色助剤の種類と使用濃度は従来のポリエステル染色加工と同一でよく、一般的には0.5〜2g/lの範囲で使用される。染色温度はポリエステル繊維布帛が染色される温度であればよく、一般的には、90℃以上140℃以下の範囲である。
【0022】
本発明は、前述のpH調整剤により、染色浴をpH8.5以上9.0未満で染色することにより、オリゴマー因による染めむらのない染色布帛を製造することができる。
【0023】
本発明の染色布帛の製造方法は、染色浴pHを8.5以上9.0未満の弱アルカリ領域で染色することにあり、該pH領域は分散染料の加水分解を受けることなく安定な色相が得られ、かつ、オリゴマー除去剤の存在下で染色することにより、オリゴマーの脱落に有効であり、被染物への再付着防止や分散染料の染料凝集防止さらには染色機内へのスケール蓄積の防止にも効果が発揮されるものである。
【0024】
【実施例】
以下に実施例を挙げて本発明を具体的に説明するが、本発明はこれらの実施例によって制限を受けるものではない。
【0025】
実施例における染色布帛の判定は、次の方法で評価した。
【0026】
1)均染性
染色布帛の外観を織物用検反機上で肉眼判定により次の3段階で判定した。
【0027】
0 :染めむらが全くなく良好
1 :染めむらが僅かに発生し不合格
2 :染めむらが著しく発生し不合格
2)オリゴマー付着量
定量の染色布帛をエタノールにてオリゴマーを抽出し高速液体クロマト法を用いてオリゴマー量(μg/g)を定量した。
【0028】
3)複屈折率Δn
ベレックコンペンセータを装着した偏向顕微鏡を用い、常法により測定した。
4)繊維布帛上のオリゴマー付着状態
走査型電子顕微鏡(日立電気(株)製)にて500倍の拡大写真にて評価した。
【0029】
5)染色浴pH
堀場(株)製pH測定器により染色前後の処理浴pHを測定した。
【0030】
[実施例1、2、3、比較例1、2、3]
表1に示す、紡糸速度ならびに複屈折率の異なるポリエステルフィラメント糸を用いて、夫々別々にウォータジェットルームによる平織物を製織した。
【0031】
【表1】

Figure 0003849204
繊維布帛NO.1,2を常法により、糊抜、精練を施し、190℃×28秒間プレセットを行った。次に表2に示した条件で液流染色機にて浴比1:10、染色温度130℃×30分の染色後、湯洗い、水洗、乾燥し、170℃×28秒間熱処理して仕上げた。
【0032】
【表2】
Figure 0003849204
得られたそれぞれの染色布帛について染めむらの判定と布帛表面のオリゴマー付着量の測定結果を、実施例1〜3について表3、比較例1〜3について表4に示した。
【0033】
【表3】
Figure 0003849204
【表4】
Figure 0003849204
表3のとおり、本発明の実施例1、2、3はオリゴマー付着量も少なく、均染性はいずれもW0 で製品格付が合格である染めむらのない染色布帛が得られた。
また、表4の結果より、比較例1、2、3ではオリゴマーの影響で均染性はW2 とロープ状染めむらが発生し、製品格付けは不合格であった。
【0034】
[実施例4、比較例4、5]
前述、表1に示したポリエステルフィラメント繊維布帛NO.1を用て、常法により、糊抜精練、乾燥、ヒートセット後、表5に示す染色条件にて染色し、湯洗い、水洗、乾燥後180℃×32秒間の仕上げセットで仕上げた。
【0035】
【表5】
Figure 0003849204
色差(△E)はミノルタ(株)製 SPECTRO PHOTOMETER CM3700dにて基準光源C光源、視野2°で測色し、比較例4と色差比較を行なった。
【0036】
実施例4では均染性がW0 と染めむらがなく、色差(△E)も比較例4と同じ色相濃度が得られた。
【0037】
一方、比較例4は均染性がW2 とオリゴマー因による染めむらの発生が認められる。また、比較例5では均染性がW0 と染めむらは認められないが、比較例4に対し色差(△E)は11.5と色相濃度の低い染色布帛が得られた。
【0038】
【発明の効果】
本発明は上記の構成とすることにより、高速紡糸されたポリエステルフィラメント繊維布帛の染色に際し、pH8.5以上9.0未満で染色することにより、従来の酸性染色時の使用染料を変更することなく、オリゴマー因による染めむらのない染色布帛を製造できるという優れた効果を奏する。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for producing a dyed fabric free from uneven dyeing due to oligomers by dyeing a fabric using polyester filament yarn with a disperse dye.
[0002]
[Prior art]
When dyeing a fiber fabric using a polyester filament yarn spun at a spinning speed of around 2,000 m / min with a disperse dye, the dyeing bath is at pH 4.5 to pH 6.0 and under high temperature and high pressure around 130 ° C. In recent years, the spinning speed of polyester filament yarn has been increasing more and more in order to improve and rationalize the production of yarn, and in the future, this high-speed spun polyester filament yarn will be used. There is an urgent need for a method for producing a dyed fabric in which the fabric is dyed in a state free from uneven dyeing due to oligomers.
[0003]
That is, in the conventional polyester fiber cloth, dyeing unevenness due to the influence of the oligomer was not considered as a problem, but the liquid cloth using the polyester filament yarn spun at high speed as described above was used with a liquid dyeing machine. When dyeing with disperse dyes, the dyeing bath is pH 4.5 to pH 6.0, and the dyed fabric produced under the conditions of high temperature and high pressure of around 130 ° C. is slightly colored with a rope wrinkle-like deeply dyed portion. The part which became becomes apparent as uneven dyeing, and the quality of the dyed fabric is rejected.
[0004]
When the surface of the fiber was compared with the scanning electron microscope for the part that was darkly dyed and the part that was slightly lightened due to this problem, there was a difference in the adhesion state of the oligomer between the part that was clearly lightly colored and the part that was darkly dyed. It was recognized that the former adhered more than the latter.
[0005]
Furthermore, the speed of weaving in water jet looms and air jet looms has progressed, and weaving glues that are difficult to remove completely by scouring such as acrylic glues tend to be frequently used. All of these make it difficult to obtain a uniform dyed fabric without uneven dyeing in the dyeing process.
[0006]
As a method for removing the oligomer adhered to the fiber fabric, as shown in JP-A-48-73596, it is also possible to use to wash remove ultrasound, also equipment problems, Moreover, it is difficult to put it into practical use from the viewpoint of productivity.
[0007]
Further, the means for solubilizing the oligomer by reduction washing under strong alkali using caustic soda is not an excellent means because it leads to an extension of the dyeing time and decreases the productivity.
[0008]
On the other hand, alkali dyeing under a chemical having a scouring effect and an oligomer dispersibility effect as shown in Japanese Patent Application Laid-Open No. 3-90686 or Japanese Patent Application Laid-Open No. 1-192285 is effective with a strong alkali. There are problems such as restrictions on the surface of the dye used.
[0009]
[Problems to be solved by the invention]
The object of the present invention is to extend the dyeing time without introducing new equipment when dyeing a fiber fabric using a polyester filament yarn spun at a spinning speed of 5,000 m / min or more with a disperse dye. It is an object of the present invention to provide a method for producing a dyed fabric that can obtain a dyed fabric free from uneven dyeing due to oligomers without reducing the productivity due to.
[0010]
[Means for Solving the Problems]
The object of the present invention is to dye a fabric using a polyester filament yarn spun at a spinning speed of 5,000 m / min or more with a disperse dye, and the pH of the dyeing bath is 8. It is achieved by a method for producing a dyed fabric characterized by dyeing in a state of 5 or more and less than 9.0.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail. First, in the polyester used in the present invention, the main dicarboxylic acid component constituting the polyester is preferably a terephthalic acid component, but other dicarboxylic acid components are used or used in combination without departing from the object of the present invention. Also good.
[0012]
The main diol component constituting the polyester used in the present invention is preferably ethylene glycol, but other components such as 1,4 butanediol, 1,6 hexanediol, 1,4-cyclohexanedimethanol, polyethylene glycol, A diol component such as tetramethylene glycol may be used or used in combination without departing from the object of the present invention.
[0013]
Furthermore, various additives such as matting agents, flame retardants, antioxidants, ultraviolet absorbers, infrared absorbers, crystal nucleating agents, fluorescent brighteners and the like are added to the polyester used in the present invention as necessary. May be copolymerized or mixed.
[0014]
The above polyester is drawn by melt spinning at a speed of 5,000 m / min or more and is spun at a high speed, and preferably a yarn drawn at a speed of 5,000 m / min or more and less than 8,000 m / min. And 4, 0 00m / min less generation of oligomers in the polyester taken off at a rate, was difficult becomes processing disadvantages. The birefringence of the polyester obtained by such high speed spinning of 5,000 m / min or more is preferably 0.090 or more and less than 0.143.
[0015]
The high-speed spun polyester yarn may be either a multifilament or a monofilament. The fineness of the fiber yarn is not particularly limited.
[0016]
Moreover, the form of the fiber fabric using the polyester filament yarn according to the present invention is not particularly limited, such as a woven fabric, a knitted fabric, or a non-woven fabric. Further, the mixing ratio of the polyester filament yarn is 30 to 100%, more preferably 40 to 100%, and a more remarkable effect is recognized.
[0017]
The method for producing a dyed fabric in the present invention is that the dyeing bath is dyed at a pH of 8.5 or more and less than 9.0 in the presence of an oligomer removing agent. The oligomer removing agent is represented by the following structural formula (1). Organic amines are preferred.
[0018]
R 3-n N [R′-OH] n (1)
(1) In the formula, R ′ represents C 2 H 4 or C 3 H 6 , n represents an integer of 1 to 3, and R represents H or a C 1-5 alkyl group.
Further, it is preferable to use a pH buffering agent together in order to reduce the pH fluctuation of the dyeing bath and keep the pH 8.5 or more and less than 9.0 constant. For example, acetic acid / sodium pyrophosphate, dihydrogen phosphate / sodium hydrogen phosphate, or a combination of an organic phosphorus compound and a polycarboxylic acid may be used. The concentration used is not particularly limited, but is generally 0.5 to 2 g / l.
[0020]
The dyeing bath of the present invention is characterized in that the pH before dyeing is less than 9.0 and the pH is adjusted to 8.5 or more after dyeing. The pH region has no characteristic of discoloration due to hydrolysis of the disperse dye used, and is characterized in that the dye used in the conventional acid bath dyeing can be almost used.
[0021]
Further, a dispersion leveling agent may be added as a dyeing assistant in the dyeing bath of the present invention. As dispersing leveling agent, formaldehyde condensate of naphthalenesulfonic Ho phosphate, polyoxyalkylene alkyl aryl ethers, polyoxyalkylene alkyl esters, polyoxyalkylene alkyl aryl ether sulfate, such as polyoxyalkylene aryl ether sulfate is used The type and concentration of the dyeing assistant may be the same as those in the conventional polyester dyeing process and are generally used in the range of 0.5 to 2 g / l. The dyeing temperature may be a temperature at which the polyester fiber fabric is dyed, and is generally in the range of 90 ° C to 140 ° C.
[0022]
In the present invention, a dyed fabric having no uneven dyeing due to an oligomer can be produced by dyeing the dyeing bath at a pH of 8.5 or more and less than 9.0 with the pH adjusting agent described above.
[0023]
The method for producing a dyed fabric of the present invention is to dye a dye bath in a weak alkali region having a pH of 8.5 or more and less than 9.0, and the pH region has a stable hue without being subjected to hydrolysis of the disperse dye. It is obtained and dyed in the presence of an oligomer remover, so it is effective for dropping off the oligomer, preventing reattachment to the object to be dyed, preventing dye aggregation of the disperse dye, and preventing scale accumulation in the dyeing machine. Is also effective.
[0024]
【Example】
EXAMPLES The present invention will be specifically described below with reference to examples, but the present invention is not limited by these examples.
[0025]
The determination of the dyed fabric in the examples was evaluated by the following method.
[0026]
1) The appearance of the level dyeing fabric was determined on the following three stages by visual inspection on a fabric inspection machine.
[0027]
W 0 : Excellent with no uneven dyeing W 1 : Slight uneven dyeing occurs and rejected W 2 : Uneven dyeing occurs and rejected 2) High speed by extracting oligomers from ethanol with a fixed amount of oligomer adhering amount The amount of oligomer (μg / g) was quantified using liquid chromatography.
[0028]
3) Birefringence index Δn
The measurement was carried out by a conventional method using a deflection microscope equipped with a Berek compensator.
4) Oligomer adhesion state on fiber fabric Evaluation was performed with a 500 times magnified photograph using a scanning electron microscope (manufactured by Hitachi Electric Co., Ltd.).
[0029]
5) Dye bath pH
The treatment bath pH before and after dyeing was measured with a pH meter manufactured by Horiba.
[0030]
[Examples 1, 2, and 3, Comparative Examples 1, 2, and 3]
Using polyester filament yarns having different spinning speeds and birefringences as shown in Table 1, plain woven fabrics using water jet looms were woven separately.
[0031]
[Table 1]
Figure 0003849204
Fiber fabric NO. 1 and 2 were subjected to paste removal and scouring by a conventional method, and pre-set at 190 ° C. for 28 seconds. Next, after dyeing with a liquid dyeing machine at a bath ratio of 1:10 and a dyeing temperature of 130 ° C. for 30 minutes, the bath was washed with hot water, washed with water, dried, and heat-treated at 170 ° C. for 28 seconds. .
[0032]
[Table 2]
Figure 0003849204
For each of the obtained dyed fabrics, the unevenness of dyeing and the measurement results of the amount of oligomer adhering to the fabric surface are shown in Table 3 for Examples 1 to 3 and Table 4 for Comparative Examples 1 to 3.
[0033]
[Table 3]
Figure 0003849204
[Table 4]
Figure 0003849204
As shown in Table 3, in Examples 1, 2, and 3 of the present invention, dyed fabrics with little oligomer adhesion were obtained, and the leveling property was W 0 and the product rating was acceptable.
Further, from the results of Table 4, in Comparative Examples 1, 2, and 3, due to the influence of the oligomer, the leveling property resulted in W 2 and rope-like dyeing unevenness, and the product rating was unacceptable.
[0034]
[Example 4, Comparative Examples 4, 5]
As described above, the polyester filament fiber fabric NO. Using No. 1, after paste scouring, drying and heat setting, dyeing was carried out under the dyeing conditions shown in Table 5, followed by hot water washing, water washing and drying, and finishing with a finishing set of 180 ° C. × 32 seconds.
[0035]
[Table 5]
Figure 0003849204
The color difference (ΔE) was measured with SPECTRO PHOTOMETER CM3700d manufactured by Minolta Co., Ltd. with a reference light source C light source and a visual field of 2 °, and color difference comparison with Comparative Example 4 was performed.
[0036]
In Example 4, the uniform dyeing property was W 0 and there was no uneven dyeing, and the same hue density as in Comparative Example 4 was obtained for the color difference (ΔE).
[0037]
On the other hand, in Comparative Example 4, the leveling property is W 2 and the occurrence of uneven dyeing due to oligomers is observed. In Comparative Example 5, dyeing unevenness was not recognized as W 0 , but a dyed fabric having a low hue density of 11.5 compared to Comparative Example 4 was obtained.
[0038]
【The invention's effect】
In the present invention, the dyeing of the polyester filament fiber fabric spun at high speed is dyed at a pH of 8.5 or more and less than 9.0 without changing the dye used for conventional acid dyeing. In addition, there is an excellent effect that it is possible to produce a dyed fabric having no uneven dyeing due to oligomers.

Claims (4)

紡糸速度が5,000m/分以上で紡糸されたポリエステルフィラメント糸を用いた布帛を分散染料で染色するに際し、オリゴマー除去剤の存在下で染色浴のpHが8.5以上9.0未満の状態で染色することを特徴とする染色布帛の製造方法。When dyeing a fabric using polyester filament yarn spun at a spinning speed of 5,000 m / min or more with a disperse dye, the pH of the dyeing bath is 8.5 or more and less than 9.0 in the presence of an oligomer removing agent. A method for producing a dyed fabric comprising dyeing with a dye. 紡糸速度が5,000m/分以上8,000m/分未満で紡糸され、複屈折率が0.090以上0.143未満であるポリエステルフィラメント糸を用いた布帛を分散染料で染色するに際し、オリゴマー除去剤の存在下で染色浴のpHが8.5以上9.0未満の状態で染色することを特徴とする染色布帛の製造方法。Oligomer removal when dyeing a disperse dyed fabric using polyester filament yarn with spinning speed of 5,000 m / min or more and less than 8,000 m / min and birefringence of 0.090 or more and less than 0.143 A method for producing a dyed fabric, characterized in that the dyeing bath is dyed in a state where the pH of the dyeing bath is 8.5 or more and less than 9.0 in the presence of the agent. 染色前後のpH値の差が0.5以内であることを特徴とする請求項1または2に記載の染色布帛の製造方法。The method for producing a dyed fabric according to claim 1 or 2, wherein the difference in pH value before and after dyeing is within 0.5. オリゴマー除去剤が、下記(1)の構造式で示される有機アミン類であることを特徴とする請求項1〜3のいずれかに記載の染色布帛の製造方法。
3-nN[R´−OH]n …(1)
[ただし、上記(1)式中、R´はC2 4 またはC3 6 を表し、nは1〜3の整数を表し、RはHまたはC1-5 のアルキル基を表す]
The method for producing a dyed fabric according to any one of claims 1 to 3, wherein the oligomer removing agent is an organic amine represented by the following structural formula (1).
R 3-n N [R′-OH] n (1)
[In the above formula (1), R ′ represents C 2 H 4 or C 3 H 6 , n represents an integer of 1 to 3, and R represents H or a C 1-5 alkyl group]
JP04062797A 1997-02-25 1997-02-25 Method for producing dyed fabric Expired - Fee Related JP3849204B2 (en)

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