| 摘要 |
A process for printing an image on a substrate comprising applying to the substrate an ink comprising a medium and compound of Formula (1) or a salt thereof: wherein: each S1, S2, S3 and S4 independently is a substituent other than a water-dispersing substituent; each W1, W2, W3 and W4 independently is a water-dispersing substituent; a, b, c and d each independently is from 0 to 4; m, n, o and p each independently is from 0 to 4; (a+m) has a value of from 0 to 4; (b+n) has a value of from 0 to 4; (c+o) has a value of from 0 to 4; (d+p) has a value of from 0 to 4; and (n+o) has a value of from 1 to 8.
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