Paper making and fiber liberation – Processes and products – Synthetic fiber
Patent
1986-06-27
1989-04-18
Chin, Peter
Paper making and fiber liberation
Processes and products
Synthetic fiber
162158, 162182, 604375, D21H 512
Patent
active
048224537
ABSTRACT:
Absorbent structures containing individualized, crosslinked fibers. The individualized, crosslinked fibers preferably have between about 0.5 mole % and about 3.5 mole % crosslinking agent, calculated on a cellulose anhydroglucose molar basis, reacted with the fibers in the form of intrafiber crosslink bonds, wherein the crosslinking agent is selected from the group consisting of C.sub.2 -C.sub.8 dialdehydes, C.sub.2 -C.sub.8 dialdehyde acid analogues having at least one aldehyde functionality, and oligomers of such C.sub.2 -C.sub.8 dialdehydes and dialdehyde acid analogues. More preferably, the crosslinking agent is glutaraldehyde, and between about 0.75 mole % and about 2.5 mole % crosslinking agent react to form the intrafiber crosslink bonds. Also preferably, the absorbent structures have actual dry densities greater than their corresponding equilibrium wet densities, and expand upon wetting. The absorbent structures may also contain hydrogel-forming material.
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Dean Walter L.
Moore Danny R.
Owens James W.
Schoggen Howard L.
Chin Peter
Hersko Bart S.
Lewis Leonard W.
Slone Thomas J.
The Procter & Gamble Cellulose Company
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