Patent ID: 6645700
Filing Date: 2003-11-11
Classification: G03F

Abstract:
A method for forming an image, the method comprising the steps of:(a) imaging an imageable element, the imageable element comprising an imageable layer over a hydrophilic support; and forming an imaged element comprising imaged regions and unimaged regions in the imageable layer; and (b) developing the imaged element with an aqueous alkaline developer and removing one of the imaged regions and the unimaged regions of the imageable layer; in which: the aqueous alkaline developer comprises one or more water-soluble suppressors of the following structure: R1(CHOH)nR2 in which n is 4 to 7; and either (i) R1 is hydrogen, aryl, or CH2OH; and R2 is alkyl group having 1 to 4 carbon atoms, CH2OR3 in which R3 is an alkyl group having 1 to 4 carbon atoms, CH2N(R4R5) in which R4 and R5 are each independently hydrogen or an alkyl group having 1 to 4 carbon atoms, or CO2H; or (ii) R1 and R2 together form a carbonâ€”carbon single bond; the developer has a pH of about 10.0 to about 14; and the one or more suppressors together comprise about 10 wt % to about 30 wt % of the developer.