반응염료염액에서의 키틴의 염료흡착성능

이전숙,유혜자,이혜자,김정희 한국의류학회 2002 한국의류학회지 Vol.26 No.2

In order to decolorize the reactive dye wastewater, we investigated the dye-adsorption ability of chitin, which was natural polymer obtained from shrimp shell. Chitin particle(less than 25μm) was prepared from shrimp shells in the processes of decalcification in aqueous hydrochloric acid solution and deproteination in aqueous sodium hydroxide solution. The particle size of chitin was controlled to less than 25μm. Three types of the reactive dyes-C.I. Reactive Red 120, C.I. Reactive red 241 and CL Reactive Black 5-were used. Dye adsorption ability of chitin was investigated by dipping the particle in the dyebaths of concentration of 0.01%, 0.03% and 0.05% for various periods of time(1, 3, 5, 10, 20, 40, 80, 160minutes). The influence of addition of salt(Na_2SO_4) and alkali to the dyebaths on dye-absorption was also investigated. We obtained the following results for the dye-absorption ability of chitin in the dyebaths of three types of reactive dyes. 1) The amount of dye uptake by chitin was increased by addition of salt to the dyebaths. 2) As the concentration of alkali became higher than 3g/l, the amount of dye uptake by chitin was increased. Chitin showed good dye-adsorption ability, when the alkali concentration was high. 3) Chitin showed equal dye uptake in the three types of dyebaths when the dye concentration was 0.01%. Over 90% of dyestuffs was adsorbed from the dyebaths in ten minutes. When the dye concentration was higher, better adsorption ability was showed in a dye bath of Reactive black 5 than in the others. When the dye concentration was 0.03%, 90% of Reactive red 120 and Reactive red 241 was adsorbed in 40 minutes and the same of Reactive black 5 in 10 minutes. When the dye concentration was 0.05%, 90% of Reactive red 120 was adsorbed in 80 minutes, and Reactive black 5 in 10 minutes.

반응성 염료의 건열 고착 적정 시간에 관한 연구

정현미 한국니트디자인학회 2010 패션과 니트 Vol.8 No.2

As the reactive dye is the one that is good in fastness, can obtain clear color, and is available for applying diverse dyeing methods compared to other cellulose dyes, it is being widely used in direct printing of cellulose textile such as directly textile printing, discharge printing, and resit printing. As the reactive dye, which possesses the big weight in the domestically dye production and export market, is the one that is locked in by causing chemical reaction with fiber, it forms a covalent bond between dye and fiber by responding with fiber in the dyeing process. This study aimed to experimentally research into a method available for applying to directly handicraft textile printing, and to examine the dry-heat lock-in time proper for the selected reactive dye, through theoretical consideration on characteristics and textile-printing principle in the reactive dye. After measuring fastness according to difference in dry-heat lock-in time, it suggested the proper dry-heat lock-in time through the results. To manufacture the hand-screen printing work that is clear in the printing of cotton textile and is available for long-term preservation by the reactive dye, it tried to offer the research materials on the process of developing and manufacturing textile design of using a dry-heat lock-in method. As for this study, given synthesizing the findings that were measured fastness according to a change of dry-heat lock-in time in the theoretical consideration on the reactive dye and in the cotton-textile printing process of the reactive dye, they are as follows. The appropriate lock-in time of the dry-heat lock-in method in the textile-printing process of the reactive dye showed the relatively excellent washing fastness and sunlight fastness given 1-minute processing of heat press at 150℃. The reactive dye is the one that is clear in color and that is good and excellent in all the fastness except washing fastness. Thus, to increase practicality, there is necessity of increasing reactivity with fiber by expanding scope in stability on hydrolysis of dye. An in-depth research is needed on simplicity of post-treatment process after dyeing.

Reactive Orange 16 Dye를 이용한 청색광차단 기능의 하이드로겔 콘택트렌즈 제조

김종래 대한시과학회 2022 대한시과학회지 Vol.24 No.4

Purpose : Blue-light blocking dyes were chemically conjugated to the hydrogel contact lenses. Blue-light blocking properties of the resultant contact were investigated, and the amounts of attached dyes were quantified. Methods : Vinyl sulfone-based Reactive Orange 16 Dyes were covalently conjugated to hydrogel contact lenses containing a considerable amount of alcohol groups. The investigation for blue-light blocking properties of the hydrogel lenses and the quantification for the amounts of attached dyes were performed using UV-vis spectrophotometer. Results : The blue-light blocking Reactive Orange 16 Dyes were successfully conjugated to the hydrogel contact lenses. The resultant contact lenses exhibited good blue-light blocking properties according to the results of the UV-vis spectra investigation. Reactive Orange 16 Dye conjugated to contact lenses was quantified using Beer-Lambert's law, and the blue-light blocking rate of contact lenses could be controlled by adjusting the concentration of reactive dye. Conclusion : In this study, a reactive dye with a blue-light blocking function was fixed to hydrogel contact lenses through chemical bonding, and their blue-light blocking function was analyzed. It was confirmed that as the concentration of the blue-light blocking dye increased in the chemical reaction, the blocking intensity in the blue light wavelength region between 380 and 500 nm and the amount of the conjugated dye also increased. The development of blue-light blocking contact lenses that can be mass-produced is expected to play an important role in the development of functional ophthalmic optical medical devices. 목적 : 반응성 청색광차단 염료를 하이드로겔 콘택트렌즈에 화학적으로 고정시켰고, 제조된 콘택트렌즈의 청색광차단 기능의 분석 및 첨가된 염료를 정량하고자 한다. 방법 : Vinyl sulfone-기반의 반응성 염료인 Reactive Orange 16 Dye를 다량의 알콜 작용기를 함유하는 하이드로겔 콘택트렌즈에 화학적으로 결합시켰다. 콘택트렌즈의 청색광차단 특성 및 염료의 정량은 UV-vis spectrophotometer를 이용하여 확인하였다. 결과 : 청색광차단기능의 Reactive Orange 16 Dye가 성공적으로 하이드로겔 콘택트렌즈에 결합되었다. UV-vis spectra 분석을 통해 염료를 함유한 콘택트렌즈들이 우수한 청색광차단 기능을 보임을 확인하였다. Beer-Lambert의 법칙을 이용하여, 콘택트렌즈에 첨가된 Reactive Orange 16 Dye를 정량하였으며, 반응 염료의 농도 조절을 통해, 콘택트렌즈의 청색광차단율을 조절할 수 있었다. 결론 : 본 연구에서는 청색광차단 기능의 반응성 염료를 하이드로겔 콘택트렌즈에 화학적 결합을 통해 고정시키고, 청색광차단 기능을 분석하였다. 화학적 반응에서 청색광차단 염료의 농도가 증가할수록, 380~500 nm 사이의 청색광 파장 영역에서의 차단 세기와 첨가된 염료의 양이 같이 증가함을 확인하였다. 대량생산이 가능한 청색광차단 콘택트렌즈의 개발은 기능성 안광학의료기기 개발에 큰 역할을 할 것으로 기대된다.

A Three-Bath Process for Dyeing Cotton with Bis-Azo Bi-Functional Reactive Dyes Based on Diazonium Salts

P. R. Hande,P. P. Badve,R. G. Dugane,S. S. Bhagwat,P. M. Bhate 한국섬유공학회 2020 Fibers and polymers Vol.21 No.12

Mono-azo dyes possessing a primary aromatic amino group have been shown to react with cotton by diazotizationfollowed by treatment with soda ash at 60-65 °C thereby acting as monofunctional reactive dyes. Bis-azo dyes bearing twoamino groups are expected to act as bi-functional reactive dyes and exhibit enhanced dye-cellulose fixation. This work showsthat the difference in fixation exhibited by mono-azo and bis-azo dyes is statistically significant at 95 % confidence level infavor of the latter group. This work describes a three-bath dyeing process which reduced the amount of consumed water by60.6 % and the environment factor by 62.2 %. The newly developed three-bath process also conserves energy by 74.1 %. Hence, a new class of bifunctional reactive dyes without externally attached reactive systems is, in principle, available. It willhave the advantage of reducing raw materials and manufacturing costs. It also employs a sustainable reactive dyeing process.

A Novel Approach for Estimating the Relation between K/S Value and Dye Uptake in Reactive Dyeing of Cotton Fabrics

Becerir Behcet The Korean Fiber Society 2005 Fibers and polymers Vol.6 No.3

This paper focuses on the application of a novel mathematical limit approach derived for K/S values in reactive dyeing of cotton fabrics. The relation obtained from Kubelka-Munk equation is used because the Kubelka-Munk equation is the basic relationship among fabric reflectance, fabric dye content and dyestuff characteristics. The limit approach derived in a former paper is applied to the laboratory dyeings and the dyeing behavior of some reactive dyes on cotton knitted fabric has been obtained. The results of the laboratory experiments are discussed using the new mathematical approach. When the actual K/S values obtained from the dyeings and the calculated K/S values derived by the limit approach are considered independently, it is observed that the limit relation is val id for low dye concentration applications. When the K/S values are calculated taking the K/S value of the initial dyeing concentration $(0.1\;\%\;owf)$ as the starting concentration by applying the result of the derived limit approach, the calculated K/S values fit with the ones obtained in actual dyeings. It is concluded that the novel approach presented in the paper can be used in calculating the K/S values when the initial dyeings at low dye concentrations are carefully carried out.

아크릴기를 도입한 반응성 분산염료의 합성과 염색성

박동수,박종호,정재윤,Park Dong-Soo,Park Jong-Ho,Jung Jae-Yun 한국섬유공학회 2005 한국섬유공학회지 Vol.42 No.1

Reactive disperse dyes having acryloxyethyl group were synthesized and their dyeing and fastness properties were compared with disperse dyes. The K/S value of the reactive disperse dyes were similar to those of the disperse dyes on polyester fiber and were much higher on nylon fiber. When polyester and nylon fibers were dyed in a dye pot at the same time to simulate the condition of dyeing N/P union fabrics, the difference of K/S values between polyester and nylon fibers dyed with reactive disperse dyes were smaller than that with the fibers dyed with disperse dyes. The dyeing fastness properties of reactive disperse dyes were good.

Dyeing Characteristics of Nylon, Cotton and N/C Mixture Fabrics with Reactive-disperse Dyes Containing a Sulphatoethylsulphone Group

Kim, Sung-Dong,Lee, Hyo-Young,Choi, Yeon-Ji,Lee, Jong-Lyel 한국섬유공학회 2011 FIBERS AND POLYMERS Vol.12 No.7

The dyeing and color fastness properties of three reactive-disperse dyes containing a sulphatoethylsulphone group on Nylon, cotton and N/C mixture fabrics were examined. Reduction-clearing was more effective in removing the unfixed dyes than soaping since the reactive-disperse dye became hydrophobic during dyeing process. Nylon was dyed well with three reactive-disperse dyes at pH 5~8 and difference in chemical structure between dyes did not affect the final color strength of the dyed Nylon fiber, but their build-up properties on Nylon were not so good. The color strength of the dyed cotton was not as high as that of Nylon. The color strength of cotton increased by lowering dyeing temperature when the reactive-disperse dyes having hydroxy group were used. Nylon absorbed more dye molecules than cotton in simultaneous dyeing, the color difference between Nylon and cotton could be reduced as the dyeing temperature decreased. N/C mixture fabric was dyed well at $60^{\circ}C$ with the reactive-disperse dyes having hydroxyl group when applied at pH 7 and $60^{\circ}C$, and their build-up properties were good. It was also found that washing fastness and rubbing fastness of dyed Nylon, cotton and N/C fabrics with the reactive-disperse dyes were excellent, while light fastness was moderate.

Dyeing Properties of Nylon, PET, and N/P Mixture Fabric with Reactive-disperse Dyes Having a Sulfatoethylsulfone Group

Kim, Sung-Dong,Choi, Yeon-Ji,Lee, Hyo-Young,Lee, Jong-Lyel 한국섬유공학회 2012 FIBERS AND POLYMERS Vol.13 No.2

The dyeing and color fastness properties of two reactive-disperse dyes containing a sulfatoethylsulfone group on nylon, PET and N/P mixture fabrics were examined. The rate of dyeing on nylon fabric was greatly dependent upon dye bath pH. The final dye uptakes at all pH, however, were as high as 97 %. Color strength of the dyed nylon fabric linearly increased up to 0.5 %owf and then slowed down over 1 %owf dyeing. Washing and rubbing fastness of the dyed nylon fabric were excellent, but grade of light fastness was moderate. Dyeability of the reactive-disperse dyes on PET fabric was not much affected by pH, and K/S values of PET fabric dyed at pH 5-8 were lower than those of nylon fabric at all pH examined. Build-up and color fastnesses properties on PET fabric showed the same tendency with nylon fabric. The rate of dyeing of the reactive-disperse dyes on nylon fabric was faster than on PET fabric when both fabrics were dyed simultaneously in the same dye pot, resulting in higher color strength of nylon than PET. The reactive-disperse dyes were found to be adequate to the one-bath, one-step dyeing of N/P mixture fabric when applied at pH 5 and $120^{\circ}C$.

미생물을 이용한 염료의 생분해에 관한 연구 : 반응성염료 분해균에 관한 연구 Studies on the Reactive Dye-Degrading Microorganisms

정영건,지원대,정민선,백형진 효성여자대학교 부설 한국환경위생연구소 1994 환경위생연구 Vol.4 No.1

대구시의 염색폐수처리장 폐수 및 처리장 주변의 토양과 물에서 반응성 염료인 Cibacron Brilliant Red 3B-A(CBR), Reactive Orange 16(RO), Reactive Black 5(RB)에 탈색능을 보이는 12종의 균을 분리하고 이들 균 중에서 본 실험에 사용한 CBR, RO, RB5 염료 모두에 약 90% 이상의 높은 탈색율을 나타낸 CBR2균을 선별하였다. 선별된 CBR2균의 특성 및 염료분해특성을 조사하였다. CBR2균은 그람 음성, 무아포, 간균으로 운동성이 있으며, 염농도 5%, 온도 50℃에서도 생육이 가능하였다. CBR2균의 생육 및 염료의 탈색에 미치는 pH의 영향을 조사한 결과, pH 5.0에서 9.0까지 고른 균 성장과 탈색율을 나타내었으며 특히 pH 7.0에서 최고의 균 성장 및 염료 탈색율을 나타내었다. 온도별 균의 생육 및 염료의 탈색율을 조사한 결과 30℃에서 가장 높은 균 성장 및 탈색율을 나타내었다. 산소량에 따른 균의 생육 및 염료의 탈색율을 조사한 결과, 산소량이 많을수록 균의 생육이 좋았으며, 염료의 탈색율에 있어서도 CBR 염료의 경우는 산소량에 비례해서 탈색율이 좋았으나, RO와 RB5 염료의 경우는 산소량이 가장 많은 2ml양의 배양에서 보다 상대적으로 산소량이 적은 4ml양의 배양에서 가장 높은 탈색율을 보였다. Twelve strains, which were exhibited abilities of decolorizationto the reactive dyes, Cibacron Brilliant Red 3B-A(CBR) , Reactive Orange 16(RO) and Reactive Black 5(RB5) , were isolated from the samples of waste waterof the dye textile factories and the samples of soil and water around them. Amongthem one stain, CBR2 was selected because of the higest decolorization rateto the reactive dyes, CBR, RO and RB5 with more than 90% of decolorizationrate. The characteristics of reactive dye-degrading microorganism CBR2 andits decolorization abilities to reactive dyes were investigated. This CBR2 wasGram negative and non-spore forming rod. This organism has motility and ispossible to grow even in 5% of sodium chloride solution and at such temperatueof 50℃ In the pH 5.0 to 9.0, growth rate of the isolate and decolorizationrate to reactive dyes by CBR2 were exhibited almost similar rates. However,among those pH of media the most growth and decolorization rates were appearedat pH 7.0. On the temperature effects to growth rates of CBR2 and decolorizationrate by this organism, the most growth and decolorization rates were at tempera-ture of 30℃. More oxygen volumes in test tubes enhanced generally the growthrate of this organism. However, the decolorization rate of CBR dye by CBR2was higher according to oxygen volume increased in the media but the decoloriza-tion rates of RO and RB5 dyes in 2m1 volume of culture media were rather decrea-sed than that of 4ml volume of culture media where oxygen volume is lowerthan that of 2ml volum of culture media.

린넨 직물의 번수에 따른 최적 반응성 염료의 염색성 및 염색견뢰도 연구

김쌍희,황혜선,윤혜준,심의진 한국의류산업학회 2022 한국의류산업학회지 Vol.24 No.6

In this study, we constructed a database of dyeing concentrations of all reactive dyes used for dyeing linenaccording to the thickness of the linen fabric and attempted to improve the reproducibility of the dyeing process for thecommercialization of linen fabric materials. Linen fabric is a natural cellulose material that is comfortable and suitable foreco-friendly trends. It is a typical summer material with excellent breathability and thermal conductivity, quick moistureabsorption and dissipation, and a cool touch. Dyeability and fastness were evaluated depending on the thickness of thelinen fabric using a monochlorotriazine (MCT) reactive dye and bifunctional yellow, red, and blue dyes. All three colorsof the MCT reactive dye and bifunctional dyes exhibited a darker shade as the fiber thickness of the marker increased. Fastness to washing was excellent at grades 4–5 or higher, regardless of the color of the dye and the number of linen fabrics. Although some color-fastness differences were noted, with the color change occurring most frequently with bluecolor, the fastness variations with dye type were mostly similar. The results of this study are expected to facilitate theselection of reactive dyes according to the thickness of the linen fabric based on the basic data from the laboratory, whichwill aid in the mass production of linen fabric and benefit the fashion industry.