Fibrous webs of enhanced bulk and method of manufacturing same

Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – With chemical or physical modification of liberated fiber

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162 13, 162100, 162101, D21C 900

Patent

active

044889321

ABSTRACT:
Fibrous webs of improved bulk and softness are produced by subjecting hydrophilic papermaking fibers to mechanical deformation, e.g. hammermilling, sufficient to deform the fibers without substantial fiber breakage, dispersing the resulting curled or kinked fibers, preferably in admixture with conventional papermaking fibers, in an aqueous foam with minimal agitation and holding time and forming a wet laid web from the resulting fiber furnish.

REFERENCES:
patent: 1980881 (1934-11-01), Schur
patent: 4036679 (1977-07-01), Back et al.

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