Patent ID: 6355396
Filing Date: 2002-03-12
Classification: B41C,B41M,C08G,C08K,C08L,Y10S

Abstract:
A photosensitive composition comprising components (a) and (b) as follows, and becoming soluble in an aqueous alkaline solution when irradiated with an infrared laser:(a) an infrared-ray absorbing agent represented by formula (I) as follows; and (b) a polymeric compound insoluble in water but soluble in an aqueous alkaline solution wherein R1 through R4 each independently represents a hydrogen atom, alkyl group or aryl group; R5 and R6 each independently represents an alkyl group, substituted oxy group or halogen atom; n and m each independently represents an integer from 0 through 4; R1 and R2, or R3 and R4 may combine with each other to form a ring, and R1 and/or R2 may combine with R5, or R3 and/or R4 may combine with R6, to form a ring; a plurality of R5 or a plurality of R6 may combine together to form a ring; Z1 and Z2 each independently represents a hydrogen atom, alkyl group or aryl group, at least one of Z1 and Z2 representing a hydrogen atom or an alkyl group; Q represents a trimethyne group or pentamethyne group, each of which may have a substituent group, and is able to form a cyclic structure together with a divalent organic group; and Xâˆ’ represents a counter anion.