| 摘要 |
A two-part bleach-fixing bath concentrate, substantially free from NH4 ions, comprises a first part contg. thiosulphate, sulphite and the chelating agent of a Fe(III) complex salt, substantially free from Fe; and a second part contg. an Fe(III) salt, substantially free from thiosulphate, sulphite and chelating agent. The pH value of both pts. is adjusted so that the required pH is obtd. without adding acid after mixing and dilution with water.
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| 申请人 |
AGFA-GEVAERT AG, 51373 LEVERKUSEN, DE |
发明人 |
TAPPE, GUSTAV, 51377 LEVERKUSEN, DE;SPRIEWALD, ERIKA, 51371 LEVERKUSEN, DE;DOVECAR, FRANK, 51379 LEVERKUSEN, DE |
