Process for repulping of fiber-latex binder composites

Details Process for repulping of fiber-latex binder composites Process for repulping of fiber-latex binder composites

1991-02-26

1992-07-28

Hastings, Karen M.

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Waste paper or textile waste

162 60, D21C 502

Patent

active

051338335

ABSTRACT:
Disclosed herein is a process for repulping or reclaiming fibers from latex-impregnated materials such as latex impregnated papers. The process involves treating the latex-impregnated material with an alkali solution for a sufficient period of time to separate the latex polymer from the fibers. This is followed by a washing step to rinse away the latex polymer thereby leaving the reclaimed fibers for subsequent use such as the formation of new paper stock.

REFERENCES:
patent: 3287149 (1966-11-01), Dooley
patent: 3766001 (1973-10-01), Gleason et al.
patent: 3873411 (1975-03-01), Drelich et al.
patent: 4162186 (1979-07-01), Wood et al.
patent: 4420368 (1983-12-01), Drach
patent: 4735682 (1988-04-01), Didwania et al.

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