Radiation Dose Assessment and Risk Estimation during Extracorporeal shock wave lithotripsy


By A. Sulieman, A.A. Ibrahim, H. Osman, M. Yousef.


Throughout the long history of the tinctorial arts. the dyer of textiles has been confronted with the problem of trying to match the performance of his colorants as closely as possible with the useful life of the fabric. The dyeing of cotton (cellulosics) with direct. vat, or azoic dyes depends on the adsorption of dye molecules into the fibre, while vat or azoic dyes. the dyes are first adsorbed onto the fibre followed by reaction to covert them into insoluble form. thus retained on the fibre(1). The possibility of attaching dyes to fibres by forming covalent bond has for long been attractive to dyestuff chenlists because attachment by physical adsorption and mechanical retention have the disadvantages(2) ofeither low wet fastness or high cost.


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