METHOD FOR PEROXIDE WHITENING AND ALKALINE COOKING OF COTTON CLOTH Russian patent published in 2007 - IPC D06B3/10 

FIELD: textile industry, in particular, peroxide whitening and alkaline cooking processes used in dyeing of cotton cloths.

SUBSTANCE: method involves dividing reservoir of material washing machine into two chambers by means of partition having fine filtering properties for fine filtering of water; introducing electrodes into said chambers; filling chambers with water, with running water being directed through chamber having positive electrode and called anode chamber, and water comprising, g/l: hydrogen peroxide 20-25, sodium silicate 15-20, surfactant 2-3, being directed through chamber having negative electrode and called cathode chamber; charging common salt into cathode chamber in an amount of 10-20 g/l; supplying electrodes with voltage of 5-35 V; charging cloths into cathode chamber for whitening and alkaline cooking; impregnating cloths in reservoir of material-washing machine at temperature of 85-95 C with aqueous solution of salts of indicated composition; steaming at temperature of 100 C; washing with hot and cold water.

EFFECT: reduced processing time, decreased costs of whitening and cooking processes, and improved safety of operating conditions.

1 dwg