For which type of soiling is the dry cleaning method moderately effective?

The dry cleaning method is designed to be effective for specific types of soiling, particularly those that are more sensitive to water-based cleaning methods. Heavy soiling often involves substances that are more entrenched in the fabric, and while dry cleaning may not completely remove all grime, it can be moderately effective in dealing with these tougher contaminants.

Dry cleaning uses solvents that can dissolve oils and greases that are typically difficult to remove with water-based solutions. This makes it a suitable choice for heavy soiling, as these materials can often be more resilient to conventional cleaning methods. However, it's important to understand that factors such as the nature of the fabric and the specific type of contaminant will affect the overall effectiveness.

In contrast, light soiling generally requires less aggressive cleaning and can often be handled well with water-based methods. Dust accumulation typically responds best to vacuuming or brushing rather than dry cleaning. Stains may require targeted treatments depending on their source, and dry cleaning is not always the first line of defense for various stain types. Thus, heavy soiling is where dry cleaning shines, providing a robust solution for fabrics challenged by more significant levels of dirt and grime.