• 청정기술
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• 제15권2호
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• pp.91-101
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• 2009

아마이드계 섬유를 고농도로 염색할 때 피염물의 우수한 견뢰도를 얻기 위해 사용되는 금속착염(metal complex) 염료의 대부분은 Cr을 함유하고 있는 유독성 염료이어서, 잔욕에 남게 등의 환경적인 문제를 일으킬 뿐 아니라, $Cr^{6+}$를 함유할 경우 인체에도 심각한 질병을 줄 수 있다. 본 연구에서는 이러한 금속착염 염료를 대체하기 위해 중금속 함유량을 최소화한 반응성 염료를 양모와 나일론 염색에 응용하였다. 각 섬유에 대한 반응성 염료의 염색성을 파악하고, 실제 염색공장에서의 적용을 위해 색상 영역별 흡진률과 견뢰도 수준을 확인하였다. 또한 반응성 염료들에 대한 중금속 함량 및 유해아민분석을 통하여 그 유해성 경향을 수치적으로 검증하며, 기존 사용 염료와의 비교를 통해 미래 지향적인 청정염료로서의 가능성을 보고자 하였다.

• 한국염색가공학회:학술대회논문집
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• 한국염색가공학회 2002년도 춘계학술발표회 논문집
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• pp.9-12
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• 2002

The Dyestuff is fixed to the fiber to color it in a unique way depending on the chemistry between them. Whenever there arose problems in coloring fibers, the chemistry of dyestuff could be adjusted to solve them. That manner new concept dye classes, e.g., reactive dyes, disperse dyes, cationic dyes, have arrived along with the introduction of new fibers. The attempt has made to introduce the new reactive dye to solve this problem.

• 한국염색가공학회지
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• 제14권3호
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• pp.26-33
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• 2002

Dyeing properties and crosslinking effect of bifunctional reactive dyes on chitosan fiber were investigated to improve the stability of chitosan fiber against the mild acidic solution and the wet processing. Chitosan fibers were crosslinked with epichlorohydrin for comparing purpose, and dyed with C. I. Reactive Red 194, C. I. Reactive Blue 50, and the reactive dye having two $\alpha$-bromoacrylamide groups at various concentrations. The initial dyeing rates of reactive dyes are rapid and chitosan fibers absorb the relatively large amount of dyes. The chitosan fibers dyed with these dyes show the low degree of swelling and the low solubility in 1 % acetic acid solution and also represent the higher thermal stability The reactive dye with two $\alpha$-bromoacrylamide groups shows higher crosslinking effect than other dyes.

• 분석과학
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• 제11권4호
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• pp.305-310
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• 1998

아민기를 함유한 Eriochrome Black T 유사체 염료에 cynauric chloride를 반응시켜 합성한 반응성 염료를 셀룰로오스 막(cellulose membrane)에 화학적으로 고정시켜서 2가 전이금속을 검출할 수 있는 광센서를 구성하였다. 이 광센서는 용액상 Eriochrome Black T와 마찬가지로 전이금속의 농도에 민감하게 감응한다. 이 광센서는 대표적으로 $Zn^{2+}$와 $Co^{2+}$에 대해서 각각 $6.3{\times}10^{-5}mol/l$와 $2.5{\times}10^{-4}mol/l$의 검출한계를 나타냈다. 이 광센서는 또한 흐름용액의 pH가 계속해서 변하는 조건하에서도 상당 시간 동안 그 감응성이 감소하지 않았다.

• 상하수도학회지
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• 제38권1호
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• pp.17-27
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• 2024

본 논문은 회분식 반응기에서 습식 산화법으로 합성한 칼륨 페레이트(VI)에 의한 난분해성 아조 염료Reactive Black 5의 분해 과정을 연구하는 것을 목적으로 한다. 수용액에서 RB5의 분해는 pH, Ferrate (VI) 투입량, 초기 농도, 수용액 온도 등 다양한 변수의 조건에서 연구되었다. RB5 경우에는 최대 분해 효율은 pH 7.0에서 63.2%가 달성되었으며, 이 실험 조건에서 얻은 k_app 값은 190.49 M^-1s^-1으로 나타났다. 온도 또한 가장 중요한 매개 변수 중 하나로 연구되었으며, 그 결과로부터 온도(45℃까지)를 증가시키면 페레이트(VI)에 의한 아조 화합물 염료의 분해 효율이 증가하고, 온도가 45℃를 초과하면 분해 효율이 저하되는 것으로 나타났다.

• 한국염색가공학회지
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• 제19권2호
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• pp.32-35
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• 2007

Cyclodextrin is a cyclic oligosaccharid material which shows an ability to incorporate organic guest molecules inside their cavity area. Thus, this ${\beta}-cyclodextrin$ treatment on fiber substrates may provide the changed surface characteristics of the substrates such as solubility, chemical reactivity and spectral property. In this context, the aim of this present work is to make a bridge connection using hetero-bi-functional reactive dye between fiber substrates and ${\beta}-cyclodextrin$. In addition, the corresponding Berberine inclusion behaviors into the inner cavity of ${\beta}-cyclodextrin$ was examined. The %exhaustion of Berberine inclusion as a guest molecule within the ${\beta}-cyclodextrin$ was measured using UV-Vis spectrophotometer. The findings showed that the %exhaustion of Berberine inclusion increased with increasing the prepared dye bridge compound and ${\beta}-cyclodextrin$ host material.

• 청정기술
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• 제10권1호
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• pp.37-45
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• 2004

본 연구는 섬유산업에서 많이 사용되고 있는 주요염료인 분산성, 반응성, 산성염료를 대상으로 일반적인 수질오염항목인 COD, T-N, TOC, color, SS, TDS, conductivity 등을 분석하여 각각의 염료용액의 성상을 비교 분석하였고, NF막을 투과시켰을 경우 투과 flux와 배제율이 염료용액 종류에 따라서 어떻게 다른 양상을 나타내는지를 연구하였다. 결과적으로, 염료종류별 화학적 성질 및 구조적인 차이에 의하여 염료용액의 용해도 및 유기물부하 등이 달라짐을 알 수 있었고, 특히, 분산성 염료와 반응성염료는 이들 화학적 성질의 차이가 매우 현격하게 달라서 투과 flux 감소현상과 유기물, color, 부유물 및 용존 고형물, 이온성 물질 등의 배제율이 다른 양상을 보임을 알 수 있었다. 반응성염료 용액은 분산성염료 용액에 비하여 투과 flux는 높지만, TDS의 배제율이 낮은 반면, 분산성염료 용액은 부유성 고형물 농도가 높아 투과 flux가 낮고, 유기물질의 배제율이 낮은 특성을 나타낸다.

• 한국염색가공학회지
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• 제6권2호
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• pp.30-39
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• 1994

To study the printing behaviors of Polyester and cotton(P/C) fabrics printed with disperse and reactive dyes, the effects of alkalis on the fixation of reactive dyes and the alkali-stability of disperse dyes in various methods of fixation were examined. The anthraquinone disperse dyes which have diamino derivatives as substituents without hydroxy group, such as C.I. Disperse Violet 1(D.V.1), C.I. Disperse Violet 28(D.V.28) and C.I.Disperse Blue 60(D.B.60) showed good results of fixation without regard to the concentration of NaHCO$_3$. In case of high temperature steaming(HTS) and unsaturated steaming(US)/HTS, D.V. 1 was alkali-stable and effective for P/C printing. A good result was obtained with D.V.1 and C.I.Reactive Orange 13(R.O.13) paste of 4% $K_{2}CO_{3}$. It was found that the unfixed D.V.28 bearing chloro group can hinder the fixation of monochlorotriaxinyl reactive dyes, and D.B.60 made little stain on 100% cotton. In thermosol(Tm), the dye uptake of D.V.1 was not decreased so much, but those of D.V.28 and D.B.60 were greatly decreased.

• 한국염색가공학회지
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• 제19권2호
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• pp.14-23
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• 2007

This research article explores the use of phthalocyanine reactive dye on nylon substrate. The effect of factors such as pH, temperature, liquor ratio and alkali addition on level of dye exhaustion, fixation and total fixation efficiency. Low pH, high temperature and low liquor ratio were found to be suitable conditions for maximum % exhaustion values. The effect of sulphatoethylsulphone(SES) and vinylsulphone(VS) form of the dyes on level of dye fixation was also discussed. The optimized exhaustion (%E), fixation(%F) and total fixation efficiency were determined. Modification of the dyeing process with alkali addition displayed that dye fixation(%) increased by alkali addition. Vinylsulphone(VS) moiety of the dye was found to be superior to. maximum fixation (%F). Appropriate predictable empirical models, relatively a new approach in dyeing processes, were developed incorporating interactions effects of temperature, pH and liquor ratio for predicting % exhaustion, fixation and total fixation efficiency. The significance of the mathematical model developed was ascertained using microsoft excel regression(solver) analysis module. High correlation coefficient was obtained (R2=0.9895 for % exhaustion, R2=0.9932 for fixation, R2=0.9965 for total fixation efficiency) for the model which shows prominent prediction capacity of the model for my conditions. The predictable polynomial equations developed from tile experimental results were thoroughly analyzed by ANOVA (Analysis of Variance) statistical concepts.

• 한국염색가공학회지
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• 제15권5호
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• pp.301-309
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• 2003

Of the various types of dye that can be used to apply polyamide fibers, acid dyes and pre-metallised acid dyes are great in use so far. However, since these acid dyeings suffer from dye loss during laundering, recourse to an aftertreatment is usually necessary to achieve adequate fastness to washing. In the case of reactive dyes, the characteristically high washfastness of dyeings comes with the concomitant advantages of brightness and low environmental impact. Despite the obvious advantages, the commercialization of reactive dyes for polyamide fibers has not gained widespread success. In this context, the rewards for approach are likely to be considerable. Heterobifunctional reactive dyes were applied to polyamide fibers using various conditions. Optimum conditions and fixation were determined. The forms in which the vinylsulphone and hydrolyzed moieties were examined using HPLC-Mass. In addition, it was found that the extent of the washfastness secured, in terms of both change in color and staining of adjacent multifiber was being acceptable.