JP3849213B2 - Polyester colored fabric - Google Patents

Polyester colored fabric Download PDF

Info

Publication number
JP3849213B2
JP3849213B2 JP07199697A JP7199697A JP3849213B2 JP 3849213 B2 JP3849213 B2 JP 3849213B2 JP 07199697 A JP07199697 A JP 07199697A JP 7199697 A JP7199697 A JP 7199697A JP 3849213 B2 JP3849213 B2 JP 3849213B2
Authority
JP
Japan
Prior art keywords
fabric
polyester
yarn
oligomer
dyeing
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.)
Expired - Fee Related
Application number
JP07199697A
Other languages
Japanese (ja)
Other versions
JPH10266082A (en
Inventor
勲 松田
陽一郎 小津
陽輔 田辺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP07199697A priority Critical patent/JP3849213B2/en
Publication of JPH10266082A publication Critical patent/JPH10266082A/en
Application granted granted Critical
Publication of JP3849213B2 publication Critical patent/JP3849213B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Coloring (AREA)
  • Artificial Filaments (AREA)
  • Woven Fabrics (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、高速紡糸のフィラメントフラット糸で構成されたポリエステル布帛に関するものである。
【0002】
【従来の技術】
近年、紡糸の引取り速度を4000m/分以上にすることにより延伸工程を通さなくとも十分実用特性を満足し得る繊維を得ることが可能な高速紡糸方法が生産性向上を目的として、開発され実用化されてきた。この高速紡糸方法には、紡糸口金から溶融吐出した糸条をそのまま5000m/分以上で引取る超高速紡糸法、一旦冷却固化したあとホットチューブのような加熱雰囲気で再加熱しながら延伸熱処理して4000m/分以上で引取るホットチューブ延伸紡糸法、第1引取りロールで引取った後、第2引取りロールとの間で延伸して4000m/分以上で引取る直接紡糸延伸法などがある。
【0003】
このうち、ホットチューブ延伸紡糸法によって得られる糸は従来の紡糸・延伸の二工程法で作られる糸、いわゆる延伸糸に近い物性を有するため従来の延伸糸への展開が可能である。これに対し、超高速紡糸法によって得られる糸は染色性が良く、ヤング率が小さいため柔らかいなどの特徴を持つがその物性や繊維構造が従来の延伸糸と本質的に異なるので、従来の延伸糸の代替品としては使用できない。その理由として、従来の延伸糸に比べ、初期降伏点が低く織物の緯糸に使用するとヒケが発生しやすい。また、収縮率が低いため染色工程通過時の組織交絡点がルーズのまま仕上がり、製品で縫目ずれの問題が発生する。しかし、最も単純プロセスで低コストのため、上記の問題が発生しないような方法、または従来の延伸糸にはない特徴を生かした方法として織物の経糸、起毛ニット等に使用されている。このような超高速紡糸法によって得られる糸は従来の延伸糸に比べ非晶部配向度が30%程度と極端に低く、繊維中に約1.4wt%存在するオリゴマーが、染色工程中の熱処理による非晶部の運動に伴って繊維表面へと拡散移動する。繊維表面へと拡散移動したオリゴマーは高温の染色浴に溶出し、冷却時に繊維表面へ再付着する。この再付着したオリゴマーは布帛の品位を低下させ、また、染色機内の汚れとなり次に加工する布帛に悪影響をおよぼす。
【0004】
従来の染色浴pHは4.5〜6.0であり、オリゴマーの再付着を抑制することは不可能であった。再付着したオリゴマーを除去する方法として、特開昭48−73596号公報で提案されている超音波を利用した洗浄方法も可能であるが設備的な問題があり、また生産性の面から実用化は難しいものであった。また、苛性ソーダと界面活性剤を利用した強アルカリ条件下での還元洗浄によりオリゴマーを可溶化させる手段もあるが、この方法では、色相、繊維強度に影響のない温度条件となれば、80℃程度の低温条件を採用せざるを得ず、これではオリゴマー除去性が極めて低いものでしかなかった。
【0005】
【発明が解決しようとする課題】
本発明は、かかる従来技術の背景に鑑み、布帛の品位を低下させることなく、しかも染色機内の汚れもなく、高速紡糸フィラメントフラット糸で構成されたポリエステル着色布帛を提供せんとするものである。
【0006】
【課題を解決するための手段】
本発明は、かかる課題を解決するために、つぎのような手段を採用する。すなわち、本発明のポリエステル着色布帛は、複屈折率が0.08以上0.12以下のフィラメントフラット糸を用いて構成された布帛であって、該布帛の表面オリゴマー付着量が250〜500μg/gであることを特徴とするものである。
【0007】
【発明の実施の形態】
本発明は、かかる高速紡糸フィラメントフラット糸で構成されたポリエステル着色布帛でのかかる上述課題について鋭意検討したところ、該布帛を構成するポリエステルフィラメントフラット糸の該繊維表面のオリゴマー再付着量を250〜500μg/gに抑制することにより、該課題を一挙に解決することを究明したものである。
【0008】
本発明において、複屈折率が0.08以上0.12以下である高速紡糸されたフィラメントフラット糸は、オリゴマー発生量が多く、本発明の効果が大きく影響するものである。すなわち、かかるフィラメントフラット糸は、無捲縮の糸であって、帆紡糸・延伸の一工程法または二工程法で作られる糸であって、非晶部配向度が60〜70%と比較的高く、染色時の熱処理においてもオリゴマーが繊維表面に拡散移動しにくいものであるから、紡糸口金から溶融吐出した糸条をそのまま5000m/分以上で引取る超高速紡糸法によって得られた糸では、オリゴマー発生量が多いのである。
【0009】
なお、複屈折率が0.08未満のものはポリマー分子の配向度が低く、繊維としての機械的特性が不十分であり、製織工程の張力に耐えられないため好ましくないものであり、逆に0.12を超えるものは超高速紡糸法の範囲では、もともと紡糸技術が困難で得られないものである。
【0010】
本発明に用いるポリエステルとは、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良い。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、例えば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。また、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。
【0011】
かかるポリエステルを溶融紡糸法により5000m/分以上で引取られた糸条はマルチフィラメントあるいはモノフィラメントのいずれでもよい。また、繊維糸条の繊度は特に限定されるものではない。
【0012】
本発明でいう布帛とは、織物、編物あるいは不織布などその形態はとくに限定されないが、少なくとも経糸に該フィラメントフラット糸を用い多ものであればよく、さらに好ましくは緯糸もフィラメントフラット糸で構成したものであるのがよい。また、加工糸形状または仮撚加工糸と交織、交編すると、オリゴマーによる表面品位の低下が顕在化しにくい傾向を示すが、フィラメントフラット糸が布帛表面の浮き糸として多く現れる組織、くわしくはサテンのような表面光沢感を持たせる組織であれば、オリゴマーによる表面品位の低下が顕在化しやすい傾向を示す。
【0013】
本発明におけるポリエステル着色布帛は、分散染料を用いて染色されたものであり、たとえば120〜140℃で、好ましくはその染色浴のpHがアルカリサイドにして染色されたものがよい。詳しくは、pHが8.5以上であれば発明の効果が大きいがpHが9.0以上になると染料の加水分解を引起し、色相変化の可能性が高く、染料選択が必要となるため、ほとんどの染料が使用可能であるpH=8.5〜9.0の範囲が最も好ましい。染色後の染色浴pHが8.5以下になるとオリゴマーの再付着が促進するため、染色前と染色後のpHはいずれも8.5〜9.0の範囲であるように制御するのが好ましい。
【0014】
【実施例】
以下、実施例によって本発明を更に詳細に説明する。実施例記載の物性値およびオリゴマー付着量の判定は次の方法によった。
【0015】
〈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。
〈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。
【0016】
〈表面品位〉
経糸方向の自然光で視角45°と90°を肉眼で見たときの品位差を視覚判定した。
【0017】
表1に示す紡糸速度並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、表2に示す織物をウォータージェットルームにより製織した。
【0018】
繊維布帛に糊抜、精練を施し、190℃×28秒間プレセットを行った。次に、液流染色機にて表3の条件で浴比1:10、染色温度130℃×30分間染色後、湯洗い、水洗、乾燥し、170℃×28秒熱処理して仕上げた。得られたそれぞれの繊維布帛について繊維表面のオリゴマー付着量を測定した結果を表4に示した。
【0019】
【表1】

Figure 0003849213
【表2】
Figure 0003849213
【表3】
Figure 0003849213
【表4】
Figure 0003849213
比較例2、3、を苛性ソーダ:2g/l、オリゴマー除去性に優れた界面活性剤:ディスパロンZX(高松油脂株式会社製)1.0g/lを用い、染色後80℃での還元洗浄を行い、得られた繊維布帛の表面オリゴマー量を測定した結果を表5に示した。
【0020】
【表5】
Figure 0003849213
【0021】
【発明の効果】
本発明は、高速紡糸法により製糸されたポリエステルフィラメントフラット糸を用いて構成された布帛でも、布帛の品位を低下させることなく、しかも染色機内の汚れもなく、高速紡糸フィラメントフラット糸で構成されたポリエステル着色布帛を提供することができる。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a polyester fabric composed of filament flat yarns of high speed spinning.
[0002]
[Prior art]
In recent years, a high-speed spinning method has been developed and practically used for the purpose of improving productivity, by which the take-up speed of spinning can be 4000 m / min or more to obtain fibers that can sufficiently satisfy the practical characteristics without passing through the drawing process. It has become. This high-speed spinning method includes an ultra-high speed spinning method in which the yarn melted and discharged from the spinneret is pulled at a rate of 5000 m / min or more, and once cooled and solidified, it is stretched and heat-treated while being reheated in a heated atmosphere such as a hot tube. There are a hot tube drawing and spinning method for taking up at 4000 m / min or more, a direct spinning drawing method for drawing with a first take-up roll and drawing with a second take-up roll and taking up at 4000 m / min or more. .
[0003]
Among these, the yarn obtained by the hot tube drawing spinning method has properties close to those of a so-called drawn yarn produced by a conventional two-step spinning / drawing method, and can therefore be developed into a conventional drawn yarn. In contrast, yarn obtained by the ultra-high speed spinning method has good dyeability and has a characteristic such as softness due to its low Young's modulus, but its physical properties and fiber structure are essentially different from conventional drawn yarns. It cannot be used as a substitute for yarn. The reason for this is that the initial yield point is lower than that of conventional drawn yarns, and if used for wefts of fabrics, sink marks are likely to occur. Further, since the shrinkage rate is low, the tissue entanglement point at the time of passing through the dyeing process is finished loose, and the problem of stitch misalignment occurs in the product. However, since it is the simplest process and low cost, it is used for warp, raised knit, etc. of a woven fabric as a method that does not cause the above-mentioned problems or a method that takes advantage of the characteristics that do not exist in conventional drawn yarns. The yarn obtained by such an ultra-high speed spinning method has an extremely low degree of amorphous portion orientation of about 30% compared to the conventional drawn yarn, and the oligomer present in the fiber at about 1.4 wt% is heat treated during the dyeing process. It diffuses and moves to the fiber surface with the movement of the amorphous part. The oligomer that has diffused and transferred to the fiber surface is eluted in a high-temperature dyeing bath and reattaches to the fiber surface during cooling. This re-adhered oligomer degrades the quality of the fabric, and also becomes a stain in the dyeing machine and adversely affects the fabric to be processed next.
[0004]
The conventional dyeing bath pH is 4.5 to 6.0, and it was impossible to suppress the reattachment of the oligomer. As a method for removing the reattached oligomer, a cleaning method using ultrasonic waves proposed in Japanese Patent Laid-Open No. 48-73596 is possible, but there are facilities problems and practical use from the viewpoint of productivity. Was difficult. In addition, there is a means to solubilize the oligomer by reductive washing under strong alkaline conditions using caustic soda and a surfactant, but in this method, if the temperature conditions do not affect the hue and fiber strength, about 80 ° C. Therefore, the oligomer removal ability was extremely low.
[0005]
[Problems to be solved by the invention]
In view of the background of such prior art, the present invention is intended to provide a polyester-colored fabric composed of high-speed spun filament flat yarn without deteriorating the quality of the fabric and without contamination in the dyeing machine.
[0006]
[Means for Solving the Problems]
The present invention employs the following means in order to solve such problems. That is, the polyester-colored fabric of the present invention is a fabric configured using a filament flat yarn having a birefringence of 0.08 or more and 0.12 or less, and the surface oligomer adhesion amount of the fabric is 250 to 500 μg / g. It is characterized by being.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The present invention has been intensively studied on the above-mentioned problems in the polyester-colored fabric composed of such high-speed spinning filament flat yarn, and the amount of oligomer reattachment on the fiber surface of the polyester filament flat yarn constituting the fabric is 250 to 500 μg. It has been clarified that the problem can be solved at once by suppressing to / g.
[0008]
In the present invention, high-speed spun filament flat yarn having a birefringence of 0.08 or more and 0.12 or less has a large amount of oligomer generation, and the effect of the present invention is greatly affected. That is, the filament flat yarn is a non-crimped yarn, which is produced by a one-step method or a two-step method of sail spinning / drawing, and has an amorphous portion orientation degree of 60 to 70%. The yarn obtained by the ultra-high speed spinning method in which the yarn melted and discharged from the spinneret as it is is drawn at a speed of 5000 m / min or more because the oligomer is difficult to diffuse and move to the fiber surface even during heat treatment during dyeing. The amount of oligomer generation is large.
[0009]
Those having a birefringence of less than 0.08 are not preferable because the degree of orientation of the polymer molecules is low, the mechanical properties as fibers are insufficient, and the fibers cannot withstand the tension of the weaving process. Those exceeding 0.12 cannot be obtained because the spinning technology is difficult in the ultra high speed spinning method.
[0010]
The polyester used in the present invention is preferably such that the main dicarboxylic acid component constituting the polyester is a terephthalic acid component, but other dicarboxylic acid components may be used or used in a range not departing from the object of the present invention. good. 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. The polyester used in the present invention may contain various additives such as matting agents, flame retardants, antioxidants, ultraviolet absorbers, infrared absorbers, crystal nucleating agents, and fluorescent whitening agents as necessary. May be copolymerized or mixed.
[0011]
The yarn obtained by pulling the polyester at 5000 m / min or more by the melt spinning method may be either a multifilament or a monofilament. Further, the fineness of the fiber yarn is not particularly limited.
[0012]
The form of the fabric referred to in the present invention is not particularly limited, such as woven fabric, knitted fabric or non-woven fabric, but it is sufficient that the filament flat yarn is used for at least the warp, and more preferably, the weft is also composed of the filament flat yarn. It is good to be. In addition, when weaving and knitting with the processed yarn shape or false twisted yarn, the degradation of the surface quality due to oligomers tends to be less obvious, but the structure in which the filament flat yarn often appears as floating yarn on the fabric surface, in particular satin If the structure has such a surface glossiness, the deterioration of the surface quality due to the oligomer tends to be manifested.
[0013]
The polyester-colored fabric in the present invention is dyed using a disperse dye, and is preferably dyed, for example, at 120 to 140 ° C., preferably with the dyeing bath having an alkaline side pH. Specifically, if the pH is 8.5 or more, the effect of the invention is great. However, if the pH is 9.0 or more, the hydrolysis of the dye is caused, and there is a high possibility of a hue change, and it is necessary to select a dye. The range of pH = 8.5-9.0, where most dyes can be used, is most preferred. Since the reattachment of the oligomer is promoted when the dyeing bath pH after dyeing is 8.5 or less, it is preferable to control the pH before dyeing and after dyeing within the range of 8.5 to 9.0. .
[0014]
【Example】
Hereinafter, the present invention will be described in more detail with reference to examples. The physical property values and oligomer adhesion amounts described in the examples were determined by the following methods.
[0015]
<Birefractive index Δn>
The measurement was carried out by a conventional method using a deflection microscope equipped with a Berek compensator.
<Oligomer adhesion amount>
The oligomer was extracted from the quantitative dyed fabric with ethanol, and the amount of oligomer (μg / g) was quantified using high performance liquid chromatography.
[0016]
<Surface quality>
The quality difference was visually determined when viewing with a naked eye at 45 ° and 90 ° viewing angles with natural light in the warp direction.
[0017]
Using the polyester filament yarns having different spinning speeds and birefringences shown in Table 1, the woven fabrics shown in Table 2 were woven in a water jet loom.
[0018]
The fiber fabric was degreased and scoured, and pre-set at 190 ° C. for 28 seconds. Next, after dyeing in a liquid dyeing machine under a bath ratio of 1:10 and a dyeing temperature of 130 ° C. for 30 minutes under the conditions shown in Table 3, it was washed with hot water, washed with water, dried, and heat treated at 170 ° C. for 28 seconds to finish. Table 4 shows the results of measuring the amount of oligomer adhesion on the fiber surface of each of the obtained fiber fabrics.
[0019]
[Table 1]
Figure 0003849213
[Table 2]
Figure 0003849213
[Table 3]
Figure 0003849213
[Table 4]
Figure 0003849213
Comparative Examples 2, 3 and 4 were caustic soda: 2 g / l, surfactant excellent in oligomer removal property: Disparon ZX (manufactured by Takamatsu Yushi Co., Ltd.) 1.0 g / l, and reduction washing at 80 ° C. after dyeing. Table 5 shows the results of the measurement of the surface oligomer amount of the obtained fiber fabric.
[0020]
[Table 5]
Figure 0003849213
[0021]
【The invention's effect】
In the present invention, even a fabric constituted by using a polyester filament flat yarn produced by a high-speed spinning method is constituted by a high-speed spinning filament flat yarn without deteriorating the quality of the fabric and without contamination in the dyeing machine. Polyester colored fabrics can be provided.

Claims (3)

複屈折率が0.08以上0.12以下のフィラメントフラット糸を用いて構成された布帛であって、該布帛の表面オリゴマー付着量が250〜500μg/gであることを特徴とするポリエステル着色布帛。A polyester-colored fabric characterized in that it is a fabric composed of a filament flat yarn having a birefringence of 0.08 or more and 0.12 or less, and the surface oligomer adhesion amount of the fabric is 250 to 500 μg / g. . 該布帛が、該フィラメントフラット糸を少なくとも経糸に用いて構成されているものである請求項1記載のポリエステル着色布帛。The polyester-colored fabric according to claim 1, wherein the fabric is constituted by using the filament flat yarn as at least a warp. 該ポリエステル着色布帛が、分散染料で、かつ、アルカリ染色されているものである請求項1記載のポリエステル着色布帛。The polyester-colored fabric according to claim 1, wherein the polyester-colored fabric is a disperse dye and is alkali-dyed.
JP07199697A 1997-03-25 1997-03-25 Polyester colored fabric Expired - Fee Related JP3849213B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP07199697A JP3849213B2 (en) 1997-03-25 1997-03-25 Polyester colored fabric

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP07199697A JP3849213B2 (en) 1997-03-25 1997-03-25 Polyester colored fabric

Publications (2)

Publication Number Publication Date
JPH10266082A JPH10266082A (en) 1998-10-06
JP3849213B2 true JP3849213B2 (en) 2006-11-22

Family

ID=13476606

Family Applications (1)

Application Number Title Priority Date Filing Date
JP07199697A Expired - Fee Related JP3849213B2 (en) 1997-03-25 1997-03-25 Polyester colored fabric

Country Status (1)

Country Link
JP (1) JP3849213B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104695238B (en) * 2015-03-11 2016-11-30 西安工程大学 Disperse dyes mineralising in situ, degree of depth water-saving and emission-reducing dyeing post-processing approach and auxiliary agent

Also Published As

Publication number Publication date
JPH10266082A (en) 1998-10-06

Similar Documents

Publication Publication Date Title
US4965919A (en) Potential bulky polyester associated bundles for woven or knitted fabric and process for production thereof
KR100359149B1 (en) Polyester fiber and fabric prepared therefrom
JP2002038333A (en) Polyester fiber having high dye-affinity
KR20030060102A (en) Process for treating knits containing polyester bicomponent fibers
JP3849213B2 (en) Polyester colored fabric
KR100530573B1 (en) Microfiber warp knitted fabric manufacturing method.
KR940010800B1 (en) Suede fabric making method
JP2000248427A (en) Polyester fiber
JP3235991B2 (en) Dyeing method for polytrimethylene terephthalate fiber
JPH09279418A (en) Three-component conjugated fiber
JPH0681245A (en) Production of fabric comprising splittable conjugate fiber and fabric with excellent touch feel
JPH1161563A (en) Copolyester fiber and fabric mixed therewith
JPH06264362A (en) Production of woven or knit fabric using false twist yarn of water absorbing polyester
JP2000160452A (en) Polyester woven fabric and its production
JPH0693530A (en) Cloth having high color-development and good feeling
JP3611051B2 (en) Polyester woven or knitted fabric excellent in water absorption and method for producing the same
JP2001003239A (en) Highly elastic woven fabric and its production
JPH06184928A (en) Production of highly dense web
JPS58104287A (en) Dyeing of polyester fiber product
JPH0418162A (en) Production of high-density cloth
JP2001164436A (en) Polyester combined filament yarn and woven and knitted fabric using the same
JPH08291437A (en) Woven or knit fabric using combined filament yarn of different size and its production
JPH09273072A (en) Production of high-bulky moisture-absorption and dry touch woven or knitted fabric
JP3818743B2 (en) Easily dyeable polyester fiber and its mixed fabric dyeing
JPH111823A (en) Polyester fiber and dyed product of its mixed fiber fabric

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20051207

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20051220

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20060220

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20060808

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20060821

LAPS Cancellation because of no payment of annual fees