셀룰로오스와 비닐술폰 반응성염료의 상호작용 (제2보) 염료會合과 염료 - 계면활성제의 상호작용

제1보[J.S.D.C 109, 213(1993)]에서 사용한 Remazol red F3B와 yellow GNL 2종류의 염료에 대해 염욕조건하에서 염료의 회합과 염료-계면활성제간의 상호작용을 UV 가시광 분광분석으로 평가했다. 또 염료/계면활성제의 특정비율로 비스코스섬유를 염색하여 염료 흡착상황을 염료-계면활성제의 상호작용과 관련지어 고찰하였다. 실험에 사용한 계면활성제는 음이온, ..

실험실의 결과를 현장으로 옮기는 경우의 문제

실험실에서 낸 처방을 현장으로 옮기기 위한 첫째의 필요조건은 기계에서의 浴比가 동일해야 한다. 만약 이 조건이 만족되지 못하면 현장의 조건에 맞춰 실험실 처방을 변경해야 한다. 그 다음 조건은 생산에 요구되는 온도프로그램이 실험실에서와 같이 가능한한 정확하게 재현되어야 하는데, 실제로는 이것이 불확실하다. 왜냐하면 실험장치에서는 염욕온도 보다는..

양모의 광표백과 광황변화의 상황

양모가 특정파장의 광조사를 받고 표백되거나, 황변화하는 현상에 관하여 예전부터 많은 보고가 있었다. 본 연구에서는 각종 양모시료에 north light fluorescent lamp(NLFL)와 argon ion laser(ATL)의 광을 조사하여, 가시영역의 흡수로부터 구할 수 있는 황색지수(YI)와 형광분광분석법에 의한 형광강도를 측정하여, 이전의 연구 보고와 비교하여 양모의 광표백, ..

Electrooxidation of dyestuffs in waste waters

An electrochemical oxidation cell is used to reduce the concentrations of organic dyes and chemical exygen demand in an aqueous effuent. The importance of the presence of an electrolyte is recorded and the effects of changing both electrolyte concentration and the dye concentration. the use of different electrolytes is reported.

Dye removal from wastewater by adsorption on 'waste'Fe(Ⅲ)/Cr(Ⅲ) hydroxide

Agricultural and industrial solid wastes can be recycled as nonconventional adsorbents if they are inert and harnless to reduce the cost of the wastewater treatments. Waste Fe(Ⅲ)/Cr(Ⅲ) hydroxide, generated in the treatment of Cr(Ⅳ) bearing wastewaters in a fertilizer industry, was used for the adsorption of Congo red (direct dye) from ..

Decolorization of mono-azo dyes in wastewater by advanced oxidation process: a case study of acid red 1 and acid yellow 23

Advanced oxidation processes have been used as emerging wastewater treatment technologies which can effectively handle various hazardous organics in wastewater and grundwater. The photooxidation of two non-biodegradable azo dyes, acid red 1 and acid yellow 23, were studied in an UV/hydrogen peroxide photochemical reactor with a 5kW low pr..

Decolorizing dyeing effluents by adsorption on activated carbon

The treatment of dyeing effluents using two types of activated carbon is examined. A direct dye and a reactive dye are used. There are 20 references.

The new Microwash rinsing system developed by Sclavos SA

The Microwash rinsing system developed by Sclavos SA is described. It is designed for use on the Apollon dyeing machines. With this system clean hot water is introduced directly to the nozzles and the fabric is washed more efficiently due to the high exchange of liquor to fabric in the spray tube. Used in conjunction with the Rinse Trough..

Lanstar High Force's technology for treating dye-house waste water

Catalytic oxidation of effluents (COE), a new process for the treatment of dyehouse wastewater developed by Lanstar High Force, is described. The COE process produces effective colour removal, detoxification and odour removal, together with a reduction of up to 80％ in the chemical oxygen demand. Hydrogen peroxide is used as oxidizing age..

Process of removing dyes

Any residual reactive dye remaining in a salt-containing dye-bath after use is removed by adsorption onto active carbon particles and subsequent removal of the carbon by filtration. Teh presence of salt enhances dye a dsorption. Filtration may be effected using a hollow-fibre crossflow filter containing expanded porous polytetrafluoroethy..