Method of image formation

Details Method of image formation Method of image formation

1977-08-26

1979-01-23

Kelley, Mary F.

Gas separation: apparatus

Electric field separation apparatus

Including gas flow distribution means

96 95, G03C 530, G03C 106

Patent

active

041359313

ABSTRACT:
A method of forming an image which comprises development processing an image-wise exposed silver halide photosensitive element in the presence of at least one compound represented by the following general formula (I): ##STR1## wherein X.crclbar. represents an anion; R.sub.1 represents a --Y--R.sub.3 group, a --Y--COOR.sub.3 group, a --Y--OCOR.sub.3 group, a --Y'--COO--Y--OCO--R.sub.3 group, a --Y'--OCO--Y--COO--R.sub.3 group or a --Y'--COO--Y--COO--R.sub.3 group; Y represents an alkylene group having 1 to 18 carbon atoms, an arylene group or an aralkylene group; R.sub.3 represents an alkyl group having 1 to 18 carbon atoms, an aryl group, an aralkyl group, a ##STR2## group or a ##STR3## group; R.sub.4 represents an alkyl group having 1 to 18 carbon atoms, an aryl group or an aralkyl group; R.sub.2 represents a hydrogen atom, a halogen atom, an alkyl group having 1 to 12 carbon atoms, an aryl group having 6 to 12 carbon atoms, an aralkyl group having 7 to 12 carbon atoms, an oxycarbonyl group (--COOR.sub.5 wherein R.sub.5 represents an alkyl group having 1 to 18 carbon atoms or an aryl group), an acyloxy group having 1 to 18 carbon atoms, an alkoxy group having 1 to 18 carbon atoms, an amino group, a substituted amino group, an acylamino group, a sulfonamido group, a carbamoyl group, a ##STR4## group or R.sub.1 ; Y' is an alkylene group having 1 to 12 carbon atoms, an arylene group, an aralkylene group or a single bond; with the proviso that R.sub.1 or R.sub.2 contains at least one ester group.

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