Accelerated extraction of rolled materials

Details Accelerated extraction of rolled materials Accelerated extraction of rolled materials

1994-05-06

1996-01-23

Silbaugh, Jan H.

Cleaning and liquid contact with solids

Processes

Including regeneration, purification, recovery or separation...

134 1, 134 10, 134 14, 134 15, 134 32, B08B 102, B08B 104, B08B 310, B08B 312

Patent

active

054862361

ABSTRACT:
Undesired constituents are removed from rolled fabric or other rolled materials by: (a) placing a roll of the material containing the undesired constituents (soluble or particulate) in a cleaning chamber; (b) providing a structure for re-rolling the material within the chamber; (c) introducing into the cleaning chamber a cleaning fluid which is a dense phase fluid comprising a liquefied gas or a supercritical fluid and contacting the material containing the undesirable constituents with the cleaning fluid; and (d) exposing single layers of the material containing the undesirable constituents with the cleaning fluid for a period of time sufficient to remove the undesired constituents from the material.

REFERENCES:
patent: 3370982 (1968-02-01), Hayunga
patent: 3559301 (1971-02-01), Fraser
patent: 3615814 (1971-10-01), Ott et al.
patent: 3635762 (1972-01-01), Ott et al.
patent: 3737941 (1973-06-01), Miller et al.
patent: 4944837 (1990-07-01), Nishikawa et al.
patent: 5013366 (1991-05-01), Jackson et al.
patent: 5213619 (1993-05-01), Jackson et al.

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