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Interaction of dyes used for foods with food packaging polyamides

机译：Interaction of dyes used for foods with food packaging polyamides

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AbstractThe effect of pH, temperature, dye concentration, and additives on the adsorption of the dyes FDC (Food, DrugsCosmetics) Blue 1 and Blue 2 upon the polyamides nylon 4–7,9, and 10–12 was studied and a correlation between these parameters and the dye uptake was found. The adsorption kinetics of the dyes on the polyamides were studied and a mechanism based on the interaction of the acid groups of the dyes and the positively charged groups of the polyamides was suggested. © 1993 John WileySons,

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