Process for the treatment and coloring / dyeing of the leather, of protein fibers, and wool in the form of carded or combed fibers.

摘要

Nowadays the treatment and dyeing of textile products as expected from time immemorial the application of organic and inorganic compounds on the textile support through the use of water as a solvent. The water is therefore the main solvent and of common use in textile treatment in general. In water they are dissolved substances for the preparation of the substrates to the dyeing of textile and leather, dyestuffs and auxiliary compounds for dyeing or printing, to finish the application of resins or other substances likely to morphological change of the substrate in the finishing stage of themselves. Over the years attempts have been made to replace water views as a primary asset for humanity of which we know the importance as a resource increasingly scarce due to the continuous increase of human use and industry. Moreover, the problem of high amounts of discharge of polluted waters implies increasingly burdensome costs, especially in the more industrialized / developed countries. Considering all this, we have developed a process where the water is or replaced by a specific solvent DMSO (dimethylsulfoxide C2H6OS) or mixed with it or other solvents, and implemented a process that does not provide in the impregnation phase reaction and the contribution of heat, using as solvent the same additives, auxiliary compounds for the treatment or dyeing and the use in the step of dyeing or treatment the aid of commonly used compounds or reactive dyes for cellulose and protein fibers. In particular those compounds or dyes capable of forming with the coloring substrate or treat, an interaction or covalent bonds, after taking part in a condensation reaction (Mannich reaction), addition (Michael reaction) or nucleophilic substitution .