Patent ID: 6536443
Filing Date: 2003-03-25
Classification: D21F,D21G,Y10S

Abstract:
An apparatus for regulating a breaking length ratio L/Q of a manufactured paper web comprising:a paper machine comprising a headbox; said headbox having at least one headbox nozzle for forming a fluid fiber layer and at least one mechanism for influencing a microturbulence of a stock suspension flowing out of said headbox nozzle; a measuring device for measuring a current breaking length ratio L/QCURR of said paper web; a comparing device for comparing said current breaking length ratio L/QCURR to a preset ratio L/QSET, said comparing device determining a deviation; a adjusting device for affecting an intensity of said microturbulence in a vicinity of said headbox nozzle, wherein said microturbulence is affected as a function of said breaking length ratio L/Q of said paper web being produced.