| 摘要 |
Nutritional or ingestible ink composition for ink jet printing which is liquid at ambient temperature comprising: a) a binder comprising at least 0.5% by weight, with respect to the total weight of the ink, of at least one zein; b) a solvent comprising at least 10% by weight, with respect to the total weight of the ink, of one or more nutritional or ingestible solvent (s); c) at least 0.1% by weight, with respect to the total weight of the ink, of one or more nutritional or ingestible dye(s) and/or pigment (s) . Dispersion of particles of at least one pigment in at least one polar solvent comprising at least one zein as dispersing agent. Use of at least one zein to facilitate the dispersing of particles of at least one pigment in at least one polar solvent and to stabilize the said dispersion. Process for marking a substrate, in particular a foodstuff, by ink jet printing with the said composition and substrate, for example eggshell, provided with such a marking. |
