What is the main role of anti-redeposition agents in laundry detergent?

Anti-redeposition agents play a critical role in laundry detergents by preventing dirt and stains that have been washed away from re-adhering to the fabric once the washing process is complete. After clothing is agitated in water and detergent, dirt particles are loosened from the fabric. Without anti-redeposition agents, these particles could settle back onto the fabric, leading to a less effective cleaning outcome. By keeping dirt suspended in the wash water, these agents ensure that the fabric remains clean and free of residues once the cycle is complete. This functionality is essential for achieving the best cleaning results and maintaining the quality of the laundered items.