What is “wicking” in the context of upholstery cleaning?

Wicking refers to the phenomenon where previously removed stains or soil in upholstery re-emerge as the fabric dries after cleaning. This occurs because moisture that contains the stain is drawn up from the deeper layers of the fabric or padding when the cleaning solution evaporates. As the fabric dries, the moisture carrying the stain can move back to the surface, causing the stain to reappear, which can be particularly frustrating after a thorough cleaning process.

Understanding wicking is crucial for upholstery cleaners, as it highlights the importance of proper drying techniques and the need for thorough rinsing to minimize the chances of this occurrence. If not appropriately addressed, wicking can undermine the effectiveness of the cleaning process, resulting in unsatisfactory outcomes for both the technician and the customer.