SURFACE DECOLORATION PROCEDURE OF NATURAL AND SYNTHETIC FABRICS, ESPECIALLY DENIM TYPE, THROUGH ULTRAVIOLET RADIATION AND AN ECOLOGICAL OXIDANT

摘要

Procedure of superficial discoloration of natural and synthetic fabrics, especially denim type, by means of ultraviolet radiation and an ecological oxidant. # This patent proposes the application of UV-C ultraviolet radiation and an oxidant composed of an ecological inorganic salt, such as peroxonosulfate for the purpose to produce in the textile materials, whether of natural or synthetic fibers (both woven and ready-made garments), appreciable advantages over the treatments that are currently applied to obtain a superficial discoloration (or wear) on the tissues, total or localized in the desired areas. In the case of non-dyed fabrics, this process can be used to carry out a pre-treatment before dyeing and finishing. # Such application is more efficient, with lower cost (less energy consumption) and with respect to the environment, all of this, improved Regarding current methods. Preferably, in denim fabrics (for various ready-made garments), it is necessary to obtain methods to achieve these various bleaching effects due to fashion demands, without the danger of the currently proposed treatments.