Process for bleaching paper pulp using melamine as a viscosity s

Details Process for bleaching paper pulp using melamine as a viscosity s Process for bleaching paper pulp using melamine as a viscosity s

1983-09-30

1984-12-11

Alvo, Steve

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Treatment with particular chemical

162 72, 162 87, 162 88, D21C 912, D21C 914

Patent

active

044876564

ABSTRACT:
A process for maintaining pulp viscosity while enhancing brightness during the bleaching stage or stages of pulp preparation in the manufacture of paper comprising adding an effective amount of melamine to paper pulp prior to or during the bleaching stage. One example adds melamine to one bleach stage of a chlorine bleaching sequence. One example adds melamine to one bleach stage of a chlorine bleaching sequence.

REFERENCES:
patent: 3308012 (1967-03-01), Tobar

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