Process for making individualized, crosslinked fibers and fibers

Details Process for making individualized, crosslinked fibers and fibers Process for making individualized, crosslinked fibers and fibers

1989-01-30

1989-12-26

Willis, Prince E.

Paper making and fiber liberation

Processes and products

Synthetic fiber

81161, 81164, 162158, 162182, 604375, 536 56, D21H 512, D06M 100

Patent

active

048895962

ABSTRACT:
Individualized, crosslinked fibers made by (a) defibrating moistened, cellulosic fibers and at least partially drying the fibers under substantially unrestrained conditions, i.e., in the substantial absence of interfiber bonds (b) contacting the fibers with a crosslinking agent, (c) reacting the crosslinking agent with the fibers in the substantial absence of interfiber bonds, to form intrafiber crosslink bonds, (d) subjecting the fibers, while in a moistened condition, to a second defibration step, and then at least partially drying the fibers under substantially unrestrained conditions.

REFERENCES:
patent: 3756913 (1973-09-01), Wodka
patent: 3932209 (1976-01-01), Chattejee
patent: 4035147 (1977-07-01), Sangenis et al.

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