The Doneck Network said it will levy solvent surcharges on solvent-based flexo and gravure inks as of April 1, 2020.   To secure its supply for the coming weeks, Doneck said it had to accept price increases from its solvent suppliers.    Starting April 1, the company will levy a product-specific solvent surcharge in accordance with the proportion of the ink used, which is shown separately in the amount of the increase.    The surcharge will be updated in line with the development of ...