fixing agent

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Noun1.fixing agent - a chemical compound that sets or fixes something (as a dye or a photographic image)
chemical compound, compound - (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
fixative - a compound (such as ethanol or formaldehyde) that fixes tissues and cells for microscopic study
hypo, sodium thiosulfate, sodium thiosulphate - a compound used as a fixing agent in photographic developing
References in periodicals archive ?
Printing and dyeing auxiliaries fall into the category of textile auxiliaries, with major varieties including leveling agent, defoamer, dispersant, binding agent, fixing agent, etc.
These were a rich source of calcium, recognized as a unique fixing agent for madder-type dyes.
FDA subsequently learned that, at least in some cases, the synthetic fixing agent does not come into contact with the HFCS.