| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a specific colorant compound, an ink composition containing the colorant compound, and an improved reactive azo colorant. <P>SOLUTION: The colorant composition is represented by the general formula (wherein R is an alkyl, aryl, arylalkyl or alkylaryl group; R can be bonded to the phenyl portion to form a ring; R' is an aromatic or heterocyclic aromatic group-containing group; each R<SB>a</SB>is independently a halogen atom or an alkyl, alkoxyl, nitrile, nitro, amide or sulfonamide group; w is an integer of 0, 1, 2, 3 or 4; n is an integer which represents the number of carbon atoms in each alkylene oxide repeating unit; and x is an integer which represents the number of the alkylene oxide repeating units) and has not more than one -OH, -SH, or a primary or secondary amino group in one molecule. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
