Patent ID: 6010593
Filing Date: 2000-01-04
Classification: B01D,D21B,G01N,Y02W

Abstract:
A process for regulating a deinking step in a process line of deinking of recycled paper, said process comprising the steps of:measuring continuously the quantities of suspended ink particles in two different states, a detached state wherein the ink particles are detached from the fibers within the pulp and an attached state wherein the ink particles are attached to the fibers within the pulp, respectively;separating the ink particles into divisions of either one of being detached to fibers within the pulp or attached to voluminous fibers within the pulp; andregulating the process line for deinking paper by actuating an operating parameter of at least one of a pulping, hot slushing, washing and flotation step based on the continuous measuring of the ink particles.