Patent ID: 6759185
Filing Date: 2004-07-06
Classification: G03F

Abstract:
A method for producing a refreshed developer, the method comprising the steps of:(a) adding a water-soluble polyoxyalkylene derivative to a loaded silicate-containing developer, in which: about 0.8 wt % to about 5.0 wt % of the water-soluble polyoxyalkylene derivative, based on the weight of the loaded developer, is added to the loaded developer; the polyoxyalkylene derivative comprises recurring units of the â€”(CH2â€”CHRâ€”O)â€” structural unit, in which each R is independently hydrogen or methyl; the loaded developer comprises loaded solids; and the loaded developer has a loaded solids content of about 0.1 wt % to about 10 wt %; (b) separating insoluble material from the developer and producing an essentially colorless liquid, in which the insoluble material comprises material dispersed in the loaded developer before step (a), a precipitate formed in step (a), or a combination thereof; and (c) adjusting the alkalinity level of the essentially colorless liquid and producing the refreshed developer.