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US 4,650,127 AGranted
Method and apparatus for fiberizing fibrous sheets
AssigneeKimberly-Clark Corporation
InventorsFred R. Radwanski, Elizabeth A. Wolfson, James L. Post
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AssigneeKimberly-Clark Corporation
InventorsFred R. Radwanski, Elizabeth A. Wolfson, James L. Post
Estimating the term…
A fiberizer for disintegrating fibrous sheets and a method of fiberizing using a rotor having peripheral teeth arranged within bands which extend transversely around the rotor axis is disclosed. The tooth pattern in each band is circumferentially extending and shaped approximately in a sinusoidal wave on the rotor periphery extending in the direction of rotation, and providing a substantially sinusoidal distribution of impacts against a sheet fed to an anvil in the form of simple harmonic motion along a cross direction impact line adjacent the anvil and thus transversing impacts within adjacent strips of the sheet corresponding to the bands. Individual points along the width of the fibrous sheet are periodically impulsively loaded by the impacts when they are at a period of highest response, i.e., when the initial stress level has been increased to the highest optimal stress without causing fiber damage, and producing mechanical disturbances within the sheets which cause vibrations and break interfiber bonds so as to precondition the sheet as it is fed to the anvil.
A fiberizer for disintegrating fibrous sheets comprising:
A fiberizer for disintegrating fibrous sheets into individual fibers comprising:
A method of fiberizing a fibrous sheet using a fiberizetr having an anvil and a rotor, teeth on the periphery of the rotor having faces positioned to hit the edge of a sheet at the anvil along an impact line adjacent the anvil along an impact line adjacent the anvil and extending the cross direction relative to a sheet fed to the anvil, said teeth being arranged in parallel, not overlapping, bands to provide impacts along a cross direction line adjacent the anvil distributed in simple harmonic motion within each machine direction strip of the sheet corresponding to each band on the rotor and wherein each of said bands includes "x" number of teeth and "2x" number of interior teeth, said method comprising the steps:
A method of fiberizing continuous roll pulp in an apparatus including an anvil and a rotor, said rotor having rows of teeth arranged in periodic parallel, not overlapping bands so as to obtain impacts distributed in simple harmonic motion along adjacent segments of a cross direction line adjacent the anvil to continuously transfer energy to the sheet for fracturing interfiber bonds and separating the sheet into individual fibers, wherein the patterns of teeth in each band includes "X" number of teeth and "2X" number of interior teeth, said method comprising the steps:
Dependencies are inferred from the claim text.