Method of bleaching cellulosic materials with hydrogen peroxide
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1. A METHOD OF BLEACHING CELLULOSIC MATERIAL WHICH COMPRISES CONTACTING SAID MATERIAL WITH AQUEOUS HYDROGEN PEROXIDE SOLUTION TO PROVIDE BLEACHED MATERIAL IN CONTACT WITH RESIDUAL HYDROGEN PEROXIDE AND THEREAFTER TREATING SUCH BLEACHED MATERIAL STILL IN CONTACT WITH RESIDUAL HYDROGEN PEROXIDE WITH ANHYDRIDE OF 2 TO 8 CARBON CARBOXYLIC ACID.
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1. A METHOD OF BLEACHING CELLULOSIC MATERIAL WHICH COMPRISES CONTACTING SAID MATERIAL WITH AQUEOUS HYDROGEN PEROXIDE SOLUTION TO PROVIDE BLEACHED MATERIAL IN CONTACT WITH RESIDUAL HYDROGEN PEROXIDE AND THEREAFTER TREATING SUCH BLEACHED MATERIAL STILL IN CONTACT WITH RESIDUAL HYDROGEN PEROXIDE WITH ANHYDRIDE OF 2 TO 8 CARBON CARBOXYLIC ACID.
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