When combined with a mainwash detergent, it enhances soil removal from heavily soiled laundry. Improves soil removal; especially food (protein) and grease stains (eg restaurant and kitchen linen). Counters greying of linen; stabilizes soil particles in the wash liquor. Improves wash performance by affecting soil-fiber interaction (swelling). Prevents yellowing of linen. Boosts alkalinity for saponification of food grease and oil based soils. Great for use on heavy soil classifications.