Title:
MEMBRANE DEAERATION MODULE CLEANING METHOD
Document Type and Number:
Japanese Patent JP2000126561
Kind Code:
A
Abstract:
To provide a cleaning method for cleaning a deaeration membrane inexpensively and efficiently for a membrane deaeration module used for deaerating a coating liquid.
A coating liquid remaining in a membrane deaeration module is discharged by flowing acidic water of pH 4 or less or alkaline water of pH 10 or more, and then the acidic water of pH 4 or 1835 or alkaline water of pH 10 or more is flowed for 30 minutes or more to remove components adhered to a deaeration membrane from the deaeration membrane.
Inventors:
HAYASHI KENJI
Application Number:
JP30279998A
Publication Date:
May 09, 2000
Filing Date:
October 23, 1998
Export Citation:
Assignee:
FUJI PHOTO FILM CO LTD
International Classes:
B01D65/06; B01D19/00; (IPC1-7): B01D65/06; B01D19/00
Attorney, Agent or Firm:
Masahiro Tanaka