INX International Ink Co. has informed customers in North America of a price increase on all solvent inks and coatings, effective Sept. 1.    Despite efforts to absorb costs, the ongoing COVID-19 pandemic has left management no choice.    The expense to manufacture solvents, especially alcohols used in the production of critical sanitizers and medical initiatives to fight the virus, has risen sharply this year.   “We regret needing to take this action but it is something that is beyo...