| 摘要 |
<p>An aqueous ink composition for use in an ink jet recording method, the aqueous ink composition comprising:
C.I. pigment yellow 180;
a first solvent consisting of one or both of 1,2-hexanediol and 1,2-pentanedio;
a second solvent consisting of one or more of 2-pyrrolidone, N-methyl-2-pyrrolidone, N,N'-dimethylpropyleneurea, 1,3-dimethyl-2-imidazolidinone, tetramethylurea, dimethyl sulfoxide, and hexamethylphosphoric triamide;
and a third solvent consisting of one or both of propylene glycol and 1,3-propanediol;
wherein:
iv) (W1) is 3-6% by mass,
v) the ratio W2/W1 is 1 or more, and
vi) the ratio (W2/W3)/W1 is 3 or more,
wherein:
W1 is the first solvent content (% by mass) relative to the mass of the aqueous ink composition,
W2 is the second solvent content (% by mass) relative to the mass of the aqueous ink composition,
W3 is the third solvent content (% by mass) relative to the mass of the aqueous ink composition.</p> |
