MEJORAS INTRODUCIDAS EN EL OBJETO DE LA PATENTE PRINCIPAL N.432342 SOLICITADA EL DIA 27 DE NOVIEMBRE DE 1974 POR:ŸPROCE-DIMIENTO PARA PREPARAR COMPOSICIONES DETERGENTES A BASE DE FTALOCIANINA DE ZINC SULFONADA

摘要

A process of bleaching cotton fabrics, especially in relation with household laundry, is provided by adsorbing on the fabric sulfonated zinc phthalocyanine photoactivator followed by rinsing and drying of the fabrics in the presence of visible light and oxygen.