Description:
<jats:title>Abstract</jats:title><jats:p>Enzymes have been widely used in modern detergents. However, few studies deal with research on enzyme dosage as well as its relationship with other ingredients within detergent products. This paper compares the washing performance of Chinese phosphate and non‐phosphate detergent before and after adding different enzymes and additives on the various types of swatches. The results confirmed that the detergent washing performance with enzymes added improved significantly for the specific stain soil. And within a certain range, the detergent washing performance and enzyme content have positive correlation. Furthermore there is synergy of soil removable ability between protease and amylase. Meanwhile the citric acid and various additives with enzymes can effectively compensate for insufficient of non‐phosphate detergent.</jats:p>