| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an ink for inkjet recording preventing elution of a compound derived from a rubber member or the like in an inkjet recording apparatus into the ink and also excellent in stiffness of a recorded substance. <P>SOLUTION: The ink for inkjet recording contains dyes (1) and (2), i.e., two kinds of azo based dyes represented by different specific chemical formulae, water, dipropylene glycol propyl ether (DPP), and an acetylene based surfactant. The dyes (1), (2), DPP and the surfactant are formulated so as to satisfy the conditions of (A)-(D). (A) A total formulation amount of the dyes (1) and (2) is 2-5 wt.% relative to the whole amount of the ink, (B) in the ink, dye (1):dye (2)=9:1-7:3 (weight ratio), (C) 0.5≤x≤2.5, and (D) 1≤y≤3, x: a formulation amount (wt.%) of the surfactant represented by formula (3) (not shown) relative to the whole amount of the ink, and y: a formulation amount (wt.%) of DPP relative to the whole amount of the ink. <P>COPYRIGHT: (C)2009,JPO&INPIT |
