closed looped recycle systems for textile effluents

the development of closed loop recycle systems linked to the individual textile wet processing operations of wool scouring, desizing, and wool/synthetic fiber dyeing is described. the advantages these treatment/recycle systems have over end-of-line treatment are discussed with reference to water and chemical recovery and reuse. the use of..

brightness matrices of light-scattering layers formed by dyed fabrics

the title problem was studied by carrying out measurements at normal irradiation on several fabrics: cotton art. $left bracket$ article $right bracket$ 1465, capron $left bracket$ polycaprolactam $right bracket$ art. 230910, and a fabric made of natural silk, art 11022, which were dyed by direct and acid dyes: photostable green zh and pho..

assessment of some thermodynamic treatments of wool dyeing systems

this paper examines previous thermodynamic data for some acid dye/wool systems. on the basis of further experimental evidence, it is suggested that errors result if allowance is not made for hydrophobic dye-dye interactions in solution at lower dyeing temperatures. 8 refs

dynamic membrane ultrafiltration and hyperfiltration for the treatment of industrial effluents for water reuse

the treatment of high strength, highly fouling or hot industrial effluents by conventional membrane technology is problematic. dynamic membranes are very versatile and have the major advantage of being replaceable in situ. several research and development applications for the treatment of polymer manufacturing, dyeing and printing and woo..

ozone decolorization of wastewater from dyeing and finishing plants

reuslts are presented from investigations of the reaction of ozone with dyes in aqueous solutions. it is shown that the most rapid stage of the reaction is the stage of decolorization, and when the dye and surfactant are simultaneously present in the rector only partial oxidation of the surfactant occurs. an increase in the efficiency of ..

wool-dyeing - six years of innovation

scientific investigations into wool-dyeing continue to reveal new information about the wool fiber, wool blends, dyes, methods of application, color measurement, and dyehouse effluent. world economic policies, particularly those concerning the cost of fuel and petroleum-based chemicals, are of great concern to the wool-dyeing industry. th..

tips on how to dye and set wool carpet

there are three main methods to dye wool for carpets: loose fiber, yarn and piece. this article compares these methods by listing their merits and shortcomings. some important factors determining the selection of the right dyeing technique are considered including the carpet type, batch size, processing routine and requirements for fastne..

adsorption de colorants ioniques sur des fibres de laine carbonisees. $left bracket$ adsorption of acid dyes on carbonized woolen fibers $right bracket$

in the reported program, a study of the adsorption of an acid dye (ab-80) and of a basic dye (br-22) has been carried out on charred woollen fibres, with a view to using that industrial waste material in the treatment of liquid effluents. the authors have first studied the dye diffusion; the diffusion of ab-80 appeared much slower than th..

change in color characteristics of dyed fabrics under the influence of temperature

the results of studying the basic color characteristics (color tone, brightness and purity) of dyed fabrics (cotton, vicose and natural silk) under the action of elevated temperature are reported the fabrics were dyed with direct light-fast blue ku, orange, red light-fast dyes. in addition, the fabric of natural silk was dyed with the fol..

development of an energy-saving no-man dyeing system

kanebo, ltd. has successfully developed a novel energy-saving fully-automated dyeing system for wool and polyester. energy-saving, man-power-reduction and productivity-improvement aspects of the new system are highlighted. . the system is composed of automated dyeing - liquor-temperature regulation, automated operation of the dyeing proce..