Final answer:
An ink developer can use cross-linking agents, possibly aldehyde-based, corrosion inhibitors, or antiredeposition agents to make alcohol-based ink more resistant to acetone. These additives form strong bonds or protective layers that reduce acetone's solvent effect.
Step-by-step explanation:
To improve the resistance of alcohol-based ink to chemical alteration by acetone, you need an additive that either doesn't react with acetone or is able to neutralize its solvent properties. Since acetone is the simplest ketone and is used widely as an industrial solvent for products such as paints, lacquers, and even as a major ingredient in nail polish remover, finding such an additive is challenging.
A possible approach could be to incorporate compounds that form strong intermolecular bonds with the ink components, such as cross-linking agents commonly used in polymer chemistry. These could include aldehyde-based compounds, which are known for producing resins and plastics that are less susceptible to solvents.
You may also consider adding corrosion inhibitors, which are designed to protect materials from chemical damage. Other options might be to use antiredeposition agents to provide a protective layer over the ink or additives that significantly increase the viscosity of the ink so as to reduce the ability of acetone to penetrate and dissolve it. While these suggestions might not provide a complete solution, they are a starting point for further research and development.