| 摘要 |
<p>The present invention provides an ink comprising a dye and a liquid medium, wherein said dye is a dye of Formula (I): <CHEM> wherein R1 and R2 represent independently an alkyl group, an alkoxy group or an acetylamino group; R3 represents -SO3M or a hydrogen atom; R4 represents a hydrogen atom, -SO3M or -NHR5, where R5 represents a hydrogen atom, a phenyl group that may have a substituent, or a group of the formula <CHEM> where R6 and R7 represent independently a hydrogen atom or -C2H4OH; M represents an alkali metal, an ammonium group or an organic amonium group; and l, m and n represent independently an integer of 0 or 1.</p> |
