| 摘要 |
Printing multi-colour images on a print medium, in which colour bleed between adjacent coloured regions is controlled, comprises: (a) providing two compsns., comprising:(i) a gel-forming species; (ii) a gel-initiating species capable of reacting with the first compsn. to form a gel, providing at least one of the compsns. contains at least one colouring agent; (b) applying the first compsn. to the print medium; (c) applying the second compsn. to the print medium in a second region directly adjacent to, and in contact with, the first region; (d) allowing the (i) to react with (ii), to form a gel which prevents colour bleed between the first region and the second region. Also claimed is a multicolour printing method, comprising (a) pretreating a first region of the print medium with either the first or second compsn.; (b) applying the other compsn. to the region and forming a gel which prevents colour bleed. |
