What does the process of pretreatment involve?

The process of pretreatment involves addressing stains or heavily soiled areas before washing the entire garment. This step is crucial because it enhances the effectiveness of the wash cycle. By applying a stain remover or treating specific areas, you increase the chances of completely removing stains that might otherwise set during the washing process. This not only improves the look and longevity of clothing but also ensures that laundry comes out cleaner overall.

The other options, while related to laundry processes, do not specifically represent pretreatment. For example, drying clothes before washing or ironing after washing are steps in the laundering process but occur at different stages, and sorting clothes by color is primarily about preventing dye transfer rather than focusing on stain removal.