Fiber separation from pulp sheet stacks
AssigneeKimberly-Clark Corporation
InventorEdward P. Laumer
Life of this patent
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Abstract
A method for separating fibers from a stack of pulp sheets. The stack of pulp sheets is fed slowly and continuously to the fiberizing means of fiberizing apparatus and in shingled relation so that the tails of individual sheets are presented singly to the fiberizing means. The fiberizing apparatus may be conventional hammermill or pulp picking equipment and suitably includes an output screen to limit the size of unfiberized particles which may pass from the fiberizer.
Claims13
A method for separating fibers from a stack of planar pulp sheets, each of said pulp sheets being defined by forward and rearward edges and opposed lateral side edges, and defining a longitudinal axis aligned perpendicular to said forward and rearward edges, comprising:
- (a) feeding said stack of pulp sheets edgewise in shingled relation to a hammermill-type fiberizing means,
- (b) aligning said pulp sheets to said fiberizing means such that said longitudinal axes of said pulp sheets are aligned generally radially to said rotating fiberizing means,
- (c) fiberizing each of said shingled pulp sheets from said forward edge to said rearward edge along said longitudinal axis such that said forward and rearward edges of each of said pulp sheets are presented to said fiberizing means substantially singly.
A method for separating fibers from a plurality of stacks of planar pulp sheets, each of said pulp sheets being defined by a forward and rearward edge and opposed lateral side edges, and defining a longitudinal axis aligned perpendicular to said forward and rearward edges, comprising:
- (a) feeding said plurality of stacks of pulp sheets edgewise in shingled relation to a hammermill-type fiberizing means,
- (b) aligning said plurality of stacks of pulp sheets to said fiberizing means such that said longitudinal axes of said pulp sheets within each of said stacks of pulp sheets are aligned generally radially to said rotating fiberizing means,
- (c) fiberizing each of said shingled pulp sheets within each of said plurality of stacks from said forward edge to said rearward edge along said longitudinal axis such that said forward and rearward edges of each of said pulp sheets are presented to said fiberizing means substantially singly, and
- (d) positioning said stacks of shingled pulp sheets such that at least one stack of pulp sheets is contacted by said fiberizing means above a horizontal axis through an axis of rotation of said fiberizing means and at least one stack of pulp sheets is contacted by said fiberizing means below said horizontal axis.
Dependencies are inferred from the claim text.