Method and apparatus for forming a cellulose article including s

Details Method and apparatus for forming a cellulose article including s Method and apparatus for forming a cellulose article including s

1998-01-20

2000-08-01

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Production of continuous or running length

264 372, 264179, 264194, 264195, 264203, 26421113, 26421119, 264233, 264560, 264562, B29C 4700

Patent

active

060962585

ABSTRACT:
A method and apparatus is disclosed for forming a cellulose film suitable for direct food contact by precipitation from a solution of cellulose water and a tertiary amine oxide cellulose solvent. After precipitation of a cellulose gel from the solution, the gel is washed at ever increasing temperatures and then dried to provide a cellulose film having a solvent level to not more than 40 ppm. Portions of the wash water is collected and treated to recover the solvent for reuse.

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