Oily soils that do not dissolve in water can often be removed with what type of solvent?

Oily soils that do not dissolve in water are best addressed with dry chemical solvents. These solvents are specifically formulated to break down and remove oils and greases that are not soluble in water. Dry chemical solvents use organic compounds that can effectively penetrate the oily soil, allowing it to be lifted away from the fabric during cleaning. Unlike water-based solutions or those that rely on aqueous interactions, dry chemical solvents can handle the unique challenges posed by oily residues.

In contrast, alcohol-based solvents may work on some types of oily soils, but they are generally less effective for heavier greases and oils. Aqueous solutions, while useful for certain types of soils, are ineffective against oil-based substances since oil does not mix with water. Reactive solvents typically refer to substances that participate in a chemical reaction to dissolve soils; while they can be effective, they are not as commonly used for oily stains as dry chemical solvents are.