Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1977-08-11
1979-06-26
Lander, Ferris H.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 23R, 210321R, 210500M, 96 56, B01D 1300, G03C 700
Patent
active
041592450
ABSTRACT:
A method for removing fogging and/or color mixing components formed in a color developer containing an aromatic primary amine developing agent during the development processing using the color developer which comprises contacting the color developer with an aqueous solution through a continuous fine open-cell porous diaphragm of a hydrophobic material to thereby transfer the fogging and/or color mixing components from the color developer to the aqueous solution.
REFERENCES:
patent: 3769206 (1973-10-01), Brown et al.
Hirai Hiroyuki
Matsushita Sachio
Shimamura Isao
Shirasu Kazuo
Fuji Photo Film Co. , Ltd.
Lander Ferris H.
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