| http://www.w3.org/ns/prov#value | - As the aliphatic carboxylic acid compound for use in the color developer, dibasic acid compounds represented by the following general formula (VI) can be employed: ##STR4## wherein R9 represents a straight chain or branched chain alkyl group or alkenyl group having 12 or more carbon atoms; and n is an integer of 0 or 1, m is an integer of 1, 2 or 3, and when n is 0, m is 2 or 3, while n is 1, m is
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