Process for improving the degree of whiteness obtained by...

D - Textiles – Paper – 21 – C

Patent

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D21C 9/16 (2006.01) D21C 9/10 (2006.01)

Patent

CA 2083319

ABSTRACT OF THE DISCLOSURE The invention relates to a process for improving the degree of whiteness of chlorine-free prebleached woodpulp, in which an alkali metal cyanate is used with hydrogen peroxide in a further bleaching step.

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