| 摘要 |
An amphoteric stilbene composition is disclosed. The composition includes a fixing agent mixed with a predetermined amount of 4,4'-diamino-2,2'-stilbene disulfonic acid, biarylsulfonate-4,4'-diamino-2,2'-stilbene disulfonic acid, biaryldisulfonate-4,4'-diamino-2,2'-stilbene disulfonic acid, derivatives thereof, salts thereof, and/or mixtures thereof. |
