Untersuchung über die Wirkung enzymatischer Vorwaschmittel

Investigation on the Action of Enzymatic Prewashing Agents Sections of Krefeld standard cotton fabrics were uniformly soiled with blood, condensed milk, cocoa and egg yolk. After varying storage periods and denaturating treatments the soiled fabrics were soaked in or mechanically prewashed with enzyme-containing and enzyme-free solutions. Finally, a boiling and a peroxide bleach followed. The effect of enzyme-containing and enzyme-free washing agents on the soil removal was checked by measuring the degree of whiteness and protein content. The degree of whiteness provides information of limited use, whereas, extensive conclusions on the washing agent can be obtained from the protein determinations.