Use of thiourea dioxide in pulp bleaching processes to...

Details Use of thiourea dioxide in pulp bleaching processes to... Use of thiourea dioxide in pulp bleaching processes to...

D - Textiles, Paper

21

C

8/80

D21C 9/12 (2006.01) D21C 9/10 (2006.01)

Patent

CA 1125955

ABSTRACT OF THE DISCLOSURE Improved pulp strength and brightness of chemically produced pulp can be obtained by treating the pulp with the addition of .05-.5% based on the weight of the dry fiber of thiourea dioxide in the chlorination or hypo- chlorite bleaching stages.

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