Wet type diazotype developer

Abstract

Abstract A wet type developer for use in diazo-type copying consisting essentially of A. 0.2 TO 5.0 PERCENT BY WEIGHT OF AN AZO COUPLING COMPONENT; B. 0.5 TO 10.0 PERCENT BY WEIGHT OF AN ALKALI AGENT; C. 0 TO 20.0 PERCENT BY WEIGHT OF A REDUCING AGENT; D. 0 TO 0.5% BY WEIGHT OF SURFACE ACTIVE AGENT; AND E. THE BALANCE BEING WATER, THE AZO COUPLING COMPONENT BEING A COMPOUND OF THE FORMULA WHEREIN Z4 is (a) an arylene group, (b) an arylene group substituted by SO3H, COOH, SO3M, COOM, alkoxy, halogen or alkyl group, or (c) WHEREIN Z2 is I. A HYDROXY ARYL GROUP, II. A HYDROXY ARYL GROUP SUBSTITUTED BY A SO3H, COOH, SO3M, COOM, alkoxy, halogen, sulphonamide, or an alkoxycarbonyl group, wherein M is an alkali metal or ammonium, or III. A GROUP REPRESENTED BY THE FORMULA WHEREIN Y is -O-, -SO2-, or -NH-, and M is as defined abov each of Z1 and Z5 is I'' A HYDROXY ARYL GROUP, OR II''. A HYDROXY ARYL GROUP SUBSTITUTED BY SO3H, COOH, SO3M, COOM, alkoxy, halogen, sulphonamide, or an alkoxy-carbonyl group, wherein M is as defined above; and Z3 is a hydroxy alkyl group, a hydroxy aryl group, or a hydroxy aryl group substituted by SO3H, COOH, SO3M, COOM, alkoxy, halogen, sulphonamide, or an alkoxycarbonyl group, wherein M WHEREIN Z4 is (a) an arylene group, (b) an arylene group substituted by SO3H, COOH, SO3M, COOM, alkoxy, halogen or an alkyl group, or (c) WHEREIN Y is -O-, -SO2-, or -NH-, and M is as defined above; each of Z1 and Z5 is I'' A HYDROXY ARYL GROUP, OR II''. A HYDROXY ARYL GROUP SUBSTITUTED BY SO3H, COOH, SO3M, COOM, alkoxy, halogen, sulphonamide, or an alkoxy-carbonyl group, wherein M is as defined above; and Z3 is a hydroxy alkyl group, a hydroxy aryl group, or a hydroxy aryl group substituted by SO3H, COOH, SO3M, COOM, alkoxy, halogen, sulphonamide, or an alkoxycarbonyl group, wherein M

Inventors

• 👤 T Yokoyama

Bibliographic Details