Use of alkylpolyglycol-tert.-butyl ether as bleaching auxiliary and bleaching baths containing this agent

摘要

A process for the bleaching of cellulose in an alkaline peroxide bleaching bath in the presence of a compound of the formula <IMAGE> wherein R is C6-C22-alkyl, C6-C22-alkenyl or C6-C22-alkylaryl, n is a number of from 5 to 50, and X is ethylene or propylene; the ether chain (X-O)n consisting entirely of ethoxy units or contains n/5 isopropoxy units at most.